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The top is equipped with safety travel and upper limit travel. If the limit travel of each floor malfunctions and becomes out of control when the cargo elevator rises， the cargo elevator will automatically descend to the first floor.The bottom is equipped with a lower limit stroke to prevent the danger of the steel wire rising and falling up after the first limit stroke fails.
0The lifting platform shows weak or no lifting of the workbench: overload; Exclusion is to reduce the load. The return valve is not closed; The elimination is by tightening the return valve. The one-way valve of the manual pump is stuck and fails to return to its original position; Troubleshooting involves maintenance， cleaning， and replacement of clean hydraulic oil.
iErenhotNo matter what industry， market demand is the direction of its development. We only focus on the advanced equipment technology， regardless of the true market demand，Aluminum alloy hydraulic lifting platform do not adapt to the market，Binhai Seine RiverSelf walking sleeve type lifting platformWhat are the social orders in the industry and in turn， let the market adapt to ourselves. The result can only exit the industry stage in fierce market competition.
Other configurations of guide rail type cargo elevators， such as photoelectric leveling switches deceleration switch stages， safety gear， guide rails， guide shoes， etc.， may vary due to speed. Of course， this must be related to how the specific elevator configuration is classified.
WBenoniLeakage occurs due to looseness，Aluminum alloy hydraulic lifting platform vibration， and the influence of heat on the sealing surface and pipe joints of the machine; Some casting， processing and other defects are difficult to detect during assembly and debugging， but due to vibration and impact during the operation process， these defects are exposed， manifested as oil (water) leakage. Therefore， leakage is prone to occur during the running-in period. Poor lubrication， lubricating oil (grease) is not easy to form a uniform oil film on the friction surface to prevent wear. This reduces lubrication efficiency and causes early abnormal wear of the components. In severe cases， it can cause scratches or bite on the friction surface of precision fitting， leading to the occurrence of faults.
QxThe staff should be responsible for supervising the distribution of goods transported by hydraulic elevators on the table as evenly as possible to prevent partial loading，Aluminum alloy hydraulic lifting platform and prohibit overloading. Hydraulic elevators are not allowed to carry people or transport flammable and hazardous materials， and are prohibited from climbing or shaking during lifting.
The daily maintenance of hydraulic cargo elevators is suitable for ones own lifting platform. Hydraulic cargo elevators are mainly used due to operational failures，Binhai Seine RiverSelf walking sleeve type lifting platformWhat are the social orders in the industry many reasons， product quality， installation issues， and maintenance. The links for daily maintenance are not in place， irregular shapes， and illegal operations， resulting in illegal use. It is understood that I have the qualifications to regularly maintain freight elevators until . According to the market competition rules of survival of the fittest， maintenance quality should adopt the market，Lifting platform - elevator - hydraulic lifting platform - elevator manufacturer and it is not a fact， Some small scale， low maintenance quot; Strong quot; The existence of lower prices and competition with other competitors if a freight elevator suddenly falls during use， the following self-help measures must be taken: no matter how many floors there are， the news for each floor is from the summer， and the freight elevator can immediately stop falling. If there are handrails inside the freight elevator， please use handrails to prevent gravity instability and falls. The knee is in a bent position， and the borrowed knee is bent， Under the heavy pressure of hitting， lift your heels and stand on tiptoes. If there are few people， it is good to extend your arms to the hydraulic cargo elevator. Hold the handrail or the posted cargo elevator wall， use the cargo elevator wall as a ridge pillar for protection. In daily life many fields and places cannot do without the use of lifting platforms. Due to the needs of cargo transportation and loading and unloading， auxiliary loading and unloading equipment is essential. As a vertical lifting and lowering platform， it is very convenient for the transportation of goods between floors. Therefore， lifting and lowering platform equipment is widely used in various fields and contributes greatly to society.
Guide rail type cargo elevators should comply with the mechanical industry standards of the Peoples Republic of China. JB/TJB/T lifting platforms are generally divided into fixed lifting platforms， mobile lifting platforms， self-propelled lifting platforms， and lifting vehicles. The working environment temperature is --+ ℃， and the general requirement is that the lifting speed of the workbench should be -m/min，The descent speed should not be greater than the type of lifting platform， and there may be slight differences in calculation methods; Calculation of elevator speed: The lifting speed is equal to the lifting height/(volume of oil cylinder/displacement of pump station). During the use of lifting platform products， it is inevitable that some faults may occur. How can these faults be eliminated?
oJinchuang lifting platform product feature is mainly used for high-altitude cargo transportation between floors. With a load capacity of - tons and a lifting height of - meters， a guide rail elevator， also known as a hydraulic elevator can be installed indoors and outdoors. The lifting height is high and uses a side mounted oil cylinder， which runs smoothly， has low noise， is convenient for maintenance， and has a long service life. In case of a power outage manual emergency descent can be used， which is safe， convenient， fast， and practical. The pit depth is generally cm-cm， and the top layer height is not affected， The pump station can be customized according to the on-site environment， suitable for - floors of steel structures or concrete factories. Both the internal and external parts can be used. The pump station adopts a joint venture pump station and an imported pump station from Italy. If the speed requirement is too high， a joint venture customized pump station can be used to meet the ideal delivery requirements. The oil cylinder and seals are made of imported components， solving the problem of unstable oil pressure for customers， The oil leakage problem of components . The oil cylinder is built into the platform . The heavy-duty steel wire rope wheel or weighted special chain ensures safety . The automatic insurance during the lifting process ensures vehicle safety . The synchronous device during the lifting process ensures that the vehicle may not overturn . The alarm setting before falling to the ground ensures the safety of the operator . The chain or steel wire rope fracture protection device . The hydraulic system pressure loss prevention protection device . The elevator special flat layer permanent magnet switch is selected， The leveling effect is good. . The distance between heavy and empty loads is small， and the leveling accuracy is high. . Standard elevator boards， LCD display call boxes， relevant wiring harnesses， and connectors are selected. Beautiful appearance， easy to operate，Visualize the position of the elevator car on the floor， and connect the wiring harness with connectors， both automatic and manual.
YFirstly， we need to choose a qualified high-altitude lifting platform work vehicle product that has undergone quality certification， and the product should be maintained and maintained in a timely manner， it is necessary to add support materials at the support feet to increase the support area and reduce the pressure on the ground. Strong wind can overload the hydraulic platform structure， and if it exceeds the specified customs， it should be immediately stopped from working.
GWhich one is betterCheck if the orientation of the upper and lower limit blocks on the guide rail frame is correct
oRCheck the relative orientation between the cable support wall and the cable guide frame
Serious oil leakage from manual pump and gear pump; The gear pump is damaged， and the oil pumped out has no pressure; Insufficient hydraulic oil; Open circuit; Filter blockage; The action of the support valve or directional valve fails; Insufficient input voltage of electromagnetic coil; The electromagnetic coil is burnt out; The valve core is stuck. These are all factors that cause the lifting platform workbench to be weak or unable to lift. The solution is to replace the sealing ring， replace the gear pump， add enough hydraulic oil， repair the electrical system， replace or clean， repair or replace.
Once again， if the frequency and amplitude of vibration of the steel wire rope of the guide rail type cargo elevator during operation are relatively high，It is advisable to use lubricating oil with high adsorption capacity， it is recommended to use a temperature of ° What is the difference between a chain lifting platform and a simple cargo elevator， where the left and right lubricating oil is soaked in before removing the excess grease? I think many friends are very interested in this issue， especially for the buyer of the lifting platform， who may not be familiar with it. Next， we， the lifting platform manufacturer， such as where to use the Nanchang elevator and the environment，A comprehensive consideration should be given to factors such as the required lifting amount， size， lifting capacity， and rated load of the equipment， and a selection should be made to select a lifting platform that is suitable for ones own work level requirements.
HThe anti fall system in the guide rail lifting platform is an important system， which is not only related to personal safety， but also to the personal and property safety of the surrounding people. Therefore， we must check the anti fall system well， we must install an anti fall safety device to ensure our safety.
When the indicator light for the power supply of the elevator is turned on press the up button， and the motor rotates but the lifting platform does not rise. This may be due to the reverse connection of the three-phase power supply and the motor reversing. Simply replace any two phase lifting circuit.
yErenhotThe frequency conversion system circuit of the construction elevator is mainly composed of two parts: the main circuit and the circuit. The main circuit mainly consists of a construction lifting cargo elevator (hereinafter referred to as the lifting cargo elevator) driven by a more complex rectifier. Before installation， all the eccentric roller shafts of the lifting cage and driving mechanism are loosened or adjusted to a large eccentricity， and the lifting cage and driving mechanism are installed in the guide rail frame respectively， and the two are connected. Start by adjusting the driving mechanism by electrically driving the suspension cage up to m above the ground or off the ground buffer spring (or support). The adjustment sequence is as follows: . Use a special wrench to rotate the eccentric shaft of the lower double (single) swing wheel to adjust the eccentricity to keep the installation surface of the mechanism perpendicular to the horizontal plane， and make the upper and lower swing wheels evenly contact the guide rail at the same time. Rotate each wheel body by hand to check if it evenly presses the guide rail; . Use a special wrench to rotate the eccentric shaft of the gear rack back pressure wheel to adjust the side clearance during gear rack meshing. When adjusting， use a feeler gauge to measure the side clearance to .; Between .mm， each pressing wheel should evenly press on the back of the rack. Move each wheel body by hand to check if it evenly presses against the tooth back. Similarly， adjust the guide rollers on both sides of the guide rail. The adjustment key is to adjust the guide wheel on one side of the guide rail to lightly press it onto the guide rail. When moving the wheel body by hand it should be possible to rotate but there should be obvious obstruction; The roller on the other side should maintain a clearance of .-. ram with the guide rail; . Adjust the lifting cage according to the above and sequence. If the driving mechanism and the lifting cage are integrated into the lifting cargo elevator， the lifting cage should be adjusted according to the and sequence of adjusting the driving mechanism. Conduct a visual inspection of the contact and operation of each roller， and use the lead pressing method and coloring method to check the meshing condition of the gear pair; Fine tune pairs of unsatisfactory parts. The key point is to carefully adjust the meshing status of the gear pair: when the contact spot shown in appears on the contact surface of the gear rack， it indicates that the driving mechanism is tilted towards the side of the guide rail. At this time， the lower swing wheel (single or double wheel) should be adjusted to move the lower part of the driving mechanism towards the direction of the guide rail until the area of the contact spot reaches more than % of the contact surface of the gear rack. The smaller the contact area， the easier it is to damage the gears and racks.
vEThe lifting platform welding and cutting equipment should have good isolation and protection devices， and be equipped with independent electrical boxes.
Once again if the frequency and amplitude of vibration of the steel wire rope of the guide rail type cargo elevator during operation are relatively high，It is advisable to use lubricating oil with high adsorption capacity， and when lubricating steel wire ropes for guide rail type cargo elevators， it is recommended to use a temperature of ° What is the difference between a chain lifting platform and a simple cargo elevator， where the left and right lubricating oil is soaked in before removing the excess grease? I think many friends are very interested in this issue， especially for the buyer of the lifting platform， who may not be familiar with it. Next， we， the lifting platform manufacturer， will briefly introduce this knowledge to everyone.
