Tray trolley operation maintenance device
Through the design of lifting components and docking parts, the problem of potential safety hazards for workers during the maintenance of the pallet suspension trolley is solved, the safe lifting and stable docking of the pallet trolley is achieved, and the safety and stability of the maintenance process are guaranteed.
Patent Information
- Application Number
- CN202511068120.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-31
- Publication Date
- 2025-09-09
AI Technical Summary
During the maintenance of the pallet chain trolley, workers need to lift the wheel mechanism in mid-air, which poses a major safety hazard and threatens life safety.
The lifting components and docking parts are used to realize the lifting and docking of the pallet trolley through the support blocks and driving parts, avoiding the workers from operating in mid-air and ensuring safety.
The safe lifting and stable docking of the pallet trolley is realized, which avoids the workers working in mid-air and improves the safety and stability of the maintenance process.
Smart Images
Figure CN120607180A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of pallet trolley maintenance devices, and in particular to a pallet trolley operation maintenance device. Background Art
[0002] The pallet suspension trolley is mainly composed of a wheel mechanism, a suspension beam and a pallet. The trolley is made of steel structure. During the production process, the pallet suspension trolley needs to carry the carbon blocks and move along the track to the cooling water pool for long-term immersion cooling. This process can easily cause faults such as wear of the pins of the trolley pallet, deformation of the signal rod and the screw, and falling off of the guide wheel, resulting in an increased maintenance rate of the pallet suspension trolley.
[0003] The pallet suspension trolley with a fault is manually pushed into the straight track through the switch control at the bend of the track and moved to the unloading station for repair. Since the pallet suspension trolley at the unloading station is suspended in the air, the workers cannot perform maintenance in the air. They need to use a forklift to lift the trolley and drag the trolley out from the opening of the straight track and then move it to the maintenance workshop for maintenance. The trolley after maintenance needs to be reinstalled into the straight track. However, since the suspension beam and the pallet are rotatably connected, one or two workers need to stand on the fork arm of the forklift and lift the wheel mechanism by hand to keep it parallel to the straight guide rail until the wheel mechanism can contact the straight track. Under the cooperation and command of another worker, the forklift slowly pushes the wheel mechanism into the straight track. During the entire operation, there are major safety hazards for the workers who lift the wheel mechanism, which seriously threatens the lives of the workers. To this end, we propose a pallet trolley operation and maintenance device to solve the above problems. Summary of the Invention
[0004] The present invention is intended to provide a pallet trolley operation and maintenance device to solve the problem that there are major safety hazards for workers who lift the wheel mechanism, which seriously threatens the life safety of the workers.
[0005] To achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a pallet trolley operation and maintenance device, comprising a bracket, the bracket is arranged at the upper end of a straight track, and a lifting assembly is provided at one end of the bracket close to the straight track, the lifting assembly comprises a first driving member, a lifting track and two sets of docking members, the first driving member is arranged at one end of the bracket close to the straight track, the lifting track is arranged at the output end of the first driving member, the first driving member can drive the lifting track to rise and fall, the two sets of docking members are symmetrically arranged on both sides of the end where the straight track and the lifting track are close to each other, the docking members comprise a first docking plate and a second docking plate, the first docking plate is arranged on the outer wall of one end of the straight track close to the lifting track, the second docking plate is arranged on the outer wall of one end of the lifting track close to the straight track, when the lifting track is parallel to the straight track, the first docking plate is hooked with the second docking plate, and a support block is symmetrically slidably installed at one end of the straight track away from the bracket, and the support block can move to the lower end of the lifting track for support.
[0006] The beneficial effects of this solution are as follows: the lifting and lowering of the pallet trolley is achieved by the lifting assembly. When the trolley breaks down, the faulty trolley can be moved into the lifting track. At this time, the lifting track is parallel to the straight track, and the support block slides out of the straight track and extends to the lower end of the lifting track. When the faulty trolley just enters the lifting track, the end of the lifting track close to the straight track is instantly subjected to downward gravity. At this time, the support block supports the end of the lifting track close to the straight track, avoiding the lifting track from tilting and affecting the faulty trolley from entering the lifting track. When the faulty trolley is completely in the lifting track, the lifting track is lowered by starting the first driving member, so that the faulty trolley drops to the ground. The staff can stand on the ground to take the faulty trolley out of the lifting track, avoiding the staff standing on the ground The wheel structure of the forklift's fork arm that lifts the faulty trolley ensures the safety of the maintenance personnel. When the repaired faulty trolley needs to be reinstalled in the straight track for work, the staff starts the first driving member to lower the lifting track, and then the staff installs the wheel mechanism of the faulty trolley parallel to the lifting track, and then starts the first driving member to raise the lifting track until the lifting track is parallel to the straight track. When the lifting track is parallel to the straight track, the second docking plate of the lifting track is hooked with the first docking plate of the straight track to prevent the lifting track and the straight track from separating under the action of the reaction force of the trolley during the process of entering the straight track, causing the trolley to fall, and finally slide out the support block to support the lifting track, thereby improving the stability of the trolley during loading and unloading.
[0007] During the loading and unloading process of the pallet trolley, the pallet trolley is raised and lowered by the lifting assembly, so that the staff can operate on the ground throughout the process, avoiding the staff working in mid-air, improving the safety of the staff during operation. At the same time, the lifting track is supported by the support block to prevent the pallet trolley from tilting when entering or exiting the lifting track, improving the stability of the lifting track when docking with the straight track, and pulling the lifting track and the straight track through the docking piece to avoid the separation of the lifting track and the straight track under the action of the reaction force when the pallet trolley exits the lifting track, thereby improving the safety of the device during operation.
[0008] Preferably, as an improvement, the first docking plate is configured to be L-shaped, and the second docking plate includes an integrally formed buckling portion and a fixing portion, the fixing portion is arranged on the outer wall of the lifting track, and the buckling portion is configured to be N-shaped, and the buckling portion can be hooked with the first docking plate.
[0009] The beneficial effects are: during the process of the lifting track rising and docking with the straight track, the buckle part can guide the first docking plate to prevent the lifting track from rotating during docking and causing collision, reducing the difficulty of docking the lifting track and the straight track, and shortening the docking time. When the lifting track and the straight track are docked, the hooking relationship between the buckle part and the docking plate can prevent the lifting track from accidentally detaching from the straight track, avoiding safety accidents such as the trolley falling during the transfer process, and further ensuring the safety of maintenance operations.
[0010] Preferably, as an improvement, a connecting ring is slidably mounted on the outer wall of the straight track, and both ends of the connecting ring are respectively connected to ends of the two support blocks that are away from each other.
[0011] The beneficial effect is that the two support blocks are connected by the connecting ring, so that the staff can slide the two support blocks by moving the connecting ring, thereby improving the docking efficiency of the lifting track and the straight track.
[0012] Preferably, the first driving member is configured as an electric hoist, and the endless chain of the electric hoist is connected to the upper end of the lifting track.
[0013] Preferably, as an improvement, a limiting plate is provided at one end of the lifting track away from the straight track.
[0014] The beneficial effect is that the limit plate is used to prevent the pallet trolley from sliding out of the lifting track, avoiding safety accidents such as the trolley falling during the transfer process.
[0015] Preferably, as an improvement, it also includes a second driving member and two groups of traction assemblies, the second driving member is arranged at the upper end of the straight track, and the output end of the second driving member is connected to the connecting ring, the two groups of traction assemblies are symmetrically arranged on both sides of the straight track, the traction assembly includes a guide rail, a slider and two groups of transmission members, the guide rail is arranged on the side wall of the straight track, the slider is slidably installed in the guide rail, the first docking plate is arranged at the end of the slider away from the straight track, the two groups of transmission members are symmetrically arranged on the upper and lower sides of the guide rail, the transmission member includes a first rack, a second rack and a transmission gear, the transmission gear is rotatably installed on the side wall of the guide rail, the first rack is arranged on the outer wall of the first docking plate, and the first rack is meshed with the transmission gear, the second rack is arranged at the end of the connecting ring close to the guide rail, and the second rack is meshed with the transmission gear, and the first rack is parallel to the second rack.
[0016] During the loading and unloading process of the pallet trolley, in order to prevent the second docking plate from colliding with the first docking plate, the lifting rail and the straight rail during the docking process, thereby preventing deformation, causing the pallet trolley to shake greatly during the transfer process, or even the separation of the lifting rail and the straight rail, causing the pallet trolley to fall, for this reason, the staff usually leave a certain gap between the second docking plate and the first docking plate, the lifting rail and the straight rail, so as to avoid the second docking plate and the first docking plate, the lifting rail and the straight rail from colliding during the docking process, but a gap is reserved between the first docking plate and the second docking plate The gap will cause the first docking plate and the second docking plate to not fit tightly together, resulting in frequent horizontal collisions between the first docking plate and the second docking plate during loading and unloading of the pallet trolley, which will greatly reduce the service life of the docking parts. In addition, due to the gap reserved between the first docking plate and the second docking plate, the gap between the lifting track and the straight track after the two are docked is larger than the originally reserved gap. The wheel mechanism of the pallet trolley will frequently pass through this gap during loading and unloading, causing the lifting track to vibrate frequently. The frequent vibration will accelerate the damage of the first drive component, and even cause the first drive component to fail, causing the lifting track to fall. In this solution, the connecting ring is pushed by the second driving member, so that the connecting ring pushes the support block to support the lifting track. During the movement of the connecting ring, the second rack pushes the transmission gear to rotate, so that the transmission gear drives the first rack to move, and the movement directions of the first rack and the second rack are opposite. When the first rack moves, the first docking plate moves along the guide rail under the action of the slider. Since the first docking plate is hooked with the second docking plate, the lifting track approaches the straight track until the lifting track is connected to the straight track, and there is no gap between the two, which avoids shaking of the pallet trolley during loading and unloading, improves the stability of the device during operation, and ensures the safety of the staff during operation.
[0017] Preferably, the second driving member is configured as a telescopic cylinder.
[0018] Preferably, a mounting seat is provided on the outer wall of the bracket, a hanging ring is provided at the lower end of the mounting seat, and a hook is provided at the upper end of the first driving member, and the hook can hook the hanging ring. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 Schematic diagram of the three-dimensional structure of the lifting assembly of Example 1 of the present invention; Figure 2 This is a bottom-up three-dimensional structural diagram of the lifting assembly of Example 1 of the present invention; Figure 3 for Figure 2 Schematic diagram of the local enlarged structure at A in the middle; Figure 4 This is a schematic diagram of the three-dimensional structure of the pallet trolley operation and maintenance device according to embodiment 2 of the present invention; Figure 5 This is a schematic diagram of the three-dimensional structure of the traction assembly of Example 2 of the present invention; Figure 6 for Figure 5 Schematic diagram of the local enlarged structure at point B in the middle. DETAILED DESCRIPTION
[0020] The following is further described in detail through specific implementation methods: The figure marks in the drawings of the specification include: support frame 1, straight rail 2, bracket 3, first driving member 4, lifting rail 5, mounting seat 6, lifting ring 7, hook 8, limit plate 9, first docking plate 10, second docking plate 11, buckle part 12, fixing part 13, fixing ring 14, support block 15, connecting ring 16, second driving member 17, guide rail 18, slider 19, first rack 20, second rack 21, transmission gear 22.
[0021] Example 1 Example 1 is basically as shown in the attached Figure 1-Figure 2 As shown, Figure 1 The pallet trolley operation and maintenance device shown in the figure includes a support frame 1 and a bracket 3. The support frame 1 is used to install a straight track 2. The straight track 2 is fixedly installed on the upper wall of the support frame 1 by welding. The bracket 3 is set to F shape. The two legs at the lower end of the bracket 3 are fixedly installed on the upper front side of the support frame 1 by welding. The front end of the bracket 3 is provided with a lifting assembly. The lifting assembly includes a first driving member 4, a lifting track 5 and two sets of docking members. The outer wall of the bracket 3 is fixedly installed with a mounting seat 6 by bolts. The lower end of the mounting seat 6 is fixedly installed with a lifting ring 7 by welding. The upper end of the first driving member 4 is fixedly installed with a hook 8. The first driving member 4 hooks the lifting ring 7 through the hook 8. The first driving member 4 is set as an electric hoist. The upper end of the lifting track 5 is fixedly connected to the ring chain of the electric hoist. The first driving member 4 can drive the lifting track 5 to move up and down. The front end of the lifting track 5 is fixedly installed with a limit plate 9 by welding. The pallet trolley can move in the lifting track 5 and the straight track 2 through the wheel mechanism. Figure 2The two sets of docking members shown are symmetrically arranged on the left and right sides of the straight track 2 and the lifting track 5 close to one end, and the docking members include a first docking plate 10 and a second docking plate 11. Figure 3 The first docking plate 10 shown is set to be L-shaped, and one side of the first docking plate 10 is fixedly installed in parallel to the outer wall of the straight track 2 by welding, and the other side of the first docking plate 10 is perpendicular to the straight track 2. The second docking plate 11 includes an integrally formed buckling portion 12 and a fixing portion 13. The fixing portion 13 is fixedly installed in parallel to the outer wall of the lifting track 5 by welding. The buckling portion 12 is set to be n-shaped. When the lifting track 5 is parallel to the straight track 2, the buckling portion 12 can be hooked with one side of the first docking plate 10 perpendicular to the straight track 2. Two fixing rings 14 are fixedly installed on both sides of the lower end of the straight track 2 by welding. Support blocks 15 are slidably installed in the two fixing rings 14 on the same side. The support block 15 can be moved to the lower end of the lifting track 5 for support. A connecting ring 16 is slidably installed on the outer wall of the straight track 2. The two ends of the connecting ring 16 are fixedly connected to the ends of the two support blocks 15 away from each other by welding.
[0022] The specific implementation process is as follows: When the trolley breaks down, the staff pushes the trolley into the straight track 2 through the switch control, and then starts the first driving member 4 to drive the lifting track 5 to rise until the lifting track 5 is parallel to the straight track 2. In the process of the lifting track 5 rising and docking with the straight track 2, the buckle 12 can guide the first docking plate 10 to prevent the lifting track 5 from rotating during docking and causing a collision, thereby reducing the docking difficulty of the lifting track 5 and the straight track 2 and shortening the docking time. When the lifting track 5 is docked with the straight track 2, the buckle 12 and the docking plate are in a stable state. The hooking relationship can prevent the lifting track 5 from accidentally leaving the straight track 2, avoiding safety accidents such as the trolley falling during the transfer process, further ensuring the safety of the maintenance operation. Then the staff pushes the connecting ring 16 in the direction of the lifting track 5 through the long rod, so that the support block 15 slides out of the straight track 2 and extends to the lower end of the lifting track 5. When the faulty trolley just enters the lifting track 5, the end of the lifting track 5 close to the straight track 2 is instantly subjected to downward gravity. At this time, the support block 15 supports the end of the lifting track 5 close to the straight track 2, avoiding the lifting track 5 from falling. The faulty trolley is tilted, affecting the entry of the faulty trolley into the lifting track 5. When the faulty trolley is completely in the lifting track 5, the lifting track 5 is lowered by starting the first driving member 4, so that the faulty trolley is lowered to the ground. The staff can stand on the ground to take the faulty trolley out of the lifting track 5, avoiding the staff standing on the fork arm of the forklift to lift the wheel structure of the faulty trolley, ensuring the life safety of the maintenance staff. When the repaired faulty trolley needs to be reinstalled into the straight track 2 for work, the staff lowers the lifting track 5 by starting the first driving member 4, and then the staff The wheel mechanism of the faulty trolley is installed in parallel into the lifting track 5, and then the first driving member 4 is started to lift the lifting track 5 until the lifting track 5 is parallel to the straight track 2. When the lifting track 5 is parallel to the straight track 2, the second docking plate 11 of the lifting track 5 is hooked with the first docking plate 10 of the straight track 2 to prevent the lifting track 5 from being separated from the straight track 2 under the action of the reaction force of the trolley when the trolley enters the straight track 2, causing the trolley to fall. Finally, the support block 15 slides out to support the lifting track 5, thereby improving the stability of the trolley during loading and unloading.
[0023] In this solution, the pallet trolley is raised and lowered by a lifting assembly, so that the staff can operate on the ground throughout the entire process, avoiding the staff working in mid-air, improving the safety of the staff during operation, and at the same time supporting the lifting track 5 by the support block 15 to prevent the pallet trolley from tilting when entering or exiting the lifting track 5, thereby improving the stability of the lifting track 5 when docking with the straight track 2. By pulling the lifting track 5 and the straight track 2 through the docking piece, the lifting track 5 and the straight track 2 are prevented from separating from the straight track 2 under the action of the reaction force when the pallet trolley exits the lifting track 5, thereby improving the safety of the device during operation.
[0024] Example 2 The principle of embodiment 2 is similar to that of embodiment 1, except that: Figure 4 The second driving member 17 and two sets of traction components shown in the figure are fixedly mounted on the upper end of the straight track 2, a baffle is fixedly mounted on the upper end of the connecting ring 16, and the output end of the second driving member 17 is fixedly connected to the rear end of the baffle. The second driving member 17 is configured as a telescopic cylinder, as shown in FIG. Figure 5 The two traction assemblies shown are symmetrically arranged on the left and right sides of the straight track 2, as shown in FIG. Figure 6 The traction assembly shown includes a guide rail 18, a slider 19 and two groups of transmission parts. In this embodiment, the traction assembly of the right wall of the straight track 2 is taken as an example. The guide rail 18 is fixedly mounted on the right wall of the straight track 2 by welding. The cross-section of the guide rail 18 is a "convex" shape. The slider 19 is set to a "convex" shape and is slidably mounted in the guide rail 18. The side of the first docking plate 10 parallel to the right wall of the straight track 2 is fixedly mounted on the end of the slider 19 extending out of the guide rail 18 by welding. The two groups of transmission parts are symmetrically arranged on the upper and lower sides of the guide rail 18. The transmission parts include a first rack 20, a second rack 21 and a transmission gear 22. The transmission gear 22 is rotatably mounted on the upper outer wall of the guide rail 18. The first rack 20 is fixedly mounted on the upper outer wall of the first docking plate 10 by welding, and the first rack 20 is meshed with the transmission gear 22. The second rack 21 is fixedly mounted on the front end of the connecting ring 16 by welding, and the second rack 21 is meshed with the transmission gear 22. The first rack 20 is parallel to the second rack 21.
[0025] In the process of loading and unloading the pallet trolley, in order to prevent the second docking plate 11 from colliding with the first docking plate 10, the lifting rail 5 and the straight rail 2 during the docking process and causing deformation, which may cause the pallet trolley to shake greatly during the transfer process, or even cause the lifting rail 5 to separate from the straight rail 2, causing the pallet trolley to fall, the staff usually leave a certain gap between the second docking plate 11 and the first docking plate 10, the lifting rail 5 and the straight rail 2, so as to avoid the second docking plate 11 from colliding with the first docking plate 10, the lifting rail 5 and the straight rail 2 during the docking process, but between the first docking plate 10 and the second docking plate 11 The reserved gap will cause the first docking plate 10 and the second docking plate 11 to not fit tightly together, resulting in frequent horizontal collisions between the first docking plate 10 and the second docking plate 11 during the loading and unloading process of the pallet trolley, which will greatly reduce the service life of the docking parts. In addition, since a gap is reserved between the first docking plate 10 and the second docking plate 11, the gap between the lifting track 5 and the straight track 2 after the two are docked is larger than the originally reserved gap, and the wheel mechanism of the pallet trolley will frequently pass through the gap during the loading and unloading process, causing the lifting track 5 to shake frequently, and the frequent shaking will accelerate the damage of the first drive component 4, and even cause the first drive component 4 to fail, causing the lifting track 5 to fall.
[0026] The second driving member 17 pushes the connecting ring 16, so that the connecting ring 16 pushes the supporting block 15 to support the lifting rail 5. During the movement of the connecting ring 16, the second rack 21 pushes the transmission gear 22 to rotate, so that the transmission gear 22 drives the first rack 20 to move, and the movement directions of the first rack 20 and the second rack 21 are opposite. When the first rack 20 moves, the first docking plate 10 moves along the guide rail 18 under the action of the slider 19 until the first docking plate 10 abuts against the second docking plate 11, thereby eliminating the gap between the first docking plate 10 and the second docking plate 11. As the first docking plate 10 continues to move, the first docking plate 10 is hooked with the second docking plate 11, so that the lifting rail 5 approaches the straight rail 2 until the lifting rail 5 is connected to the straight rail 2, and there is no gap between the two, which avoids shaking of the pallet trolley during loading and unloading, improves the stability of the device during operation, and ensures the safety of the staff during operation.
[0027] The above is only an embodiment of the present invention, and the common knowledge such as the specific technical solutions and / or characteristics in the solution are not described in detail here. It should be pointed out that for those skilled in the art, without departing from the technical solution of the present invention, several variations and improvements can be made, which should also be regarded as the scope of protection of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the description can be used to interpret the content of the claims.
Claims
1. A pallet trolley operation and maintenance device, characterized by: The lifting track is arranged at the output end of the first driving member. The first driving member can drive the lifting track to rise and fall. The two sets of docking members are symmetrically arranged on both sides of the end where the straight track and the lifting track are close to each other. The docking members include a first docking plate and a second docking plate. The first docking plate is arranged on the outer wall of one end of the straight track close to the lifting track, and the second docking plate is arranged on the outer wall of one end of the lifting track close to the straight track. When the lifting track is parallel to the straight track, the first docking plate is hooked with the second docking plate. A support block is symmetrically slidably installed on the end of the straight track away from the bracket, and the support block can move to the lower end of the lifting track for support.
2. A pallet trolley operation and maintenance device according to claim 1, characterized in that: The first docking plate is set to be L-shaped, and the second docking plate includes an integrally formed buckling part and a fixing part. The fixing part is arranged on the outer wall of the lifting track, and the buckling part is set to be N-shaped, and the buckling part can be hooked with the first docking plate.
3. The pallet trolley operation and maintenance device according to claim 2, characterized in that: A connecting ring is slidably mounted on the outer wall of the straight track, and two ends of the connecting ring are respectively connected to ends of the two supporting blocks that are away from each other.
4. The pallet trolley operation and maintenance device according to claim 3, characterized in that: The first driving component is configured as an electric hoist, and a ring chain of the electric hoist is connected to the upper end of the lifting track.
5. The operation and maintenance device for a pallet trolley according to claim 4, characterized in that: A limiting plate is provided at one end of the lifting track away from the straight track.
6. The pallet trolley operation and maintenance device according to claim 5, characterized in that: The cam is connected to the gear train of the said sliding member and the gear train is connected with the gear train of the said sliding member and the gear train is connected with the gear train of the said sliding member.
7. The pallet trolley operation and maintenance device according to claim 6, characterized in that: The second driving member is configured as a telescopic cylinder.
8. The pallet trolley operation and maintenance device according to claim 7, characterized in that: A mounting seat is provided on the outer wall of the bracket, a lifting ring is provided at the lower end of the mounting seat, and a hook is provided at the upper end of the first driving member, and the hook can hook the lifting ring.