A pallet car running maintenance device

Abstract

The utility model relates to tray trolley maintenance device technical field discloses a tray trolley operation maintenance device, including support, support is located straight track upper end, support is equipped with lifting assembly, lifting assembly includes first drive part, lifting track and two groups of butt joint spare, first drive part is located one end of support, lifting track is located first drive part's output, first drive part can drive lifting track and lift, two groups of butt joint spare symmetry are located between straight track and lifting track, butt joint spare includes first butt joint board and second butt joint board, first butt joint board is located straight track one end outer wall, second butt joint board is located lifting track one end outer wall, one end of straight track symmetry sliding installation has support block, and support block can remove to the support of lifting track lower extreme, and the utility model discloses a tray trolley lifting assembly is lifted to the tray trolley, so that the staff can be operated on the ground all the time, avoids the staff operation in the air, improves the safety when the staff operation.

Description

Technical Field

[0001] This utility model relates to the technical field of pallet trolley maintenance devices, specifically to a pallet trolley operation and maintenance device. Background Technology

[0002] The pallet overhead conveyor trolley mainly consists of a wheel mechanism, a suspension beam, and a pallet. The trolley is made of steel. During the production process, the pallet overhead conveyor trolley needs to carry carbon blocks along the track to a cooling water tank for long-term immersion and cooling. This process is prone to causing malfunctions such as wear of the pallet pins, deformation of the signal rod and lead screw, and detachment of the guide wheels, resulting in an increased maintenance rate of the pallet overhead conveyor trolley.

[0003] When a pallet overhead conveyor trolley malfunctions, it is manually pushed into the straight track at a track bend using a switch control system and moved to the unloading station for repair. Since the trolley is suspended in the air at the unloading station, workers cannot perform repairs while suspended. A forklift is needed to lift the trolley and pull it out from the opening in the straight track before transporting it to the repair workshop. After repair, the trolley needs to be reinstalled into the straight track. However, because the connection between the cantilever beam and the pallet is rotatable, one or two workers need to stand on the forklift forks and manually lift the wheel mechanism to keep it parallel to the straight track until it contacts the track. With the assistance and guidance of another worker, the forklift slowly pushes the wheel mechanism into the straight track. Throughout this process, the workers lifting the wheel mechanism face significant safety hazards, seriously threatening their lives. Therefore, we propose a pallet trolley operation and maintenance device to solve these problems. Utility Model Content

[0004] The present invention aims to provide a pallet trolley operation and maintenance device to solve the problem of significant safety hazards for workers operating the wheel lifting mechanism, which seriously threatens their lives.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a pallet trolley operation and maintenance device, comprising a bracket, the bracket being disposed on the upper end of a straight track, and a lifting assembly being disposed at the end of the bracket near the straight track. The lifting assembly includes a first driving component, a lifting track, and two sets of docking components. The first driving component is disposed at the end of the bracket near the straight track, and the lifting track is disposed at the output end of the first driving component. The first driving component can drive the lifting track to move up and down. The two sets of docking components are symmetrically disposed on both sides of the straight track and the lifting track at their respective ends. The docking components include a first docking plate and a second docking plate. The first docking plate is disposed on the outer wall of the end of the straight track near the lifting track, and the second docking plate is disposed on the outer wall of the end of the lifting track near the straight track. When the lifting track is parallel to the straight track, the first docking plate and the second docking plate are hooked together. A support block is symmetrically slidably installed at 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.

[0006] The beneficial effects of this solution are as follows: The pallet trolley is raised and lowered using a lifting assembly. When the trolley malfunctions, it can be moved into the lifting track. At this point, 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 malfunctioning trolley just enters the lifting track, the end of the lifting track near the straight track experiences a momentary downward force. The support block then supports this end of the lifting track, preventing the track from tilting and hindering the malfunctioning trolley's entry. Once the malfunctioning trolley is fully inside the lifting track, the first drive unit is activated to lower the lifting track, bringing the malfunctioning trolley down to the ground. Workers can then stand on the ground to retrieve the malfunctioning trolley from the lifting track, avoiding the need for workers to stand on the ground. The forklift's fork arm supports the wheels of the malfunctioning trolley, ensuring the safety of maintenance personnel. When the repaired trolley needs to be reinstalled into the straight rail for work, the worker lowers the lifting rail by activating the first drive mechanism. Then, the worker inserts the trolley's wheel mechanism parallel to the lifting rail, and then raises the lifting rail again until it is parallel to the straight rail. Once the lifting rail is parallel to the straight rail, the second connecting plate of the lifting rail engages with the first connecting plate of the straight rail, preventing the lifting rail from separating from the straight rail due to the trolley's reaction force during entry and causing the trolley to fall. Finally, a support block slides out to support the lifting rail, improving the stability of the trolley during loading and unloading.

[0007] During the loading and unloading of the pallet trolley, the pallet trolley is raised and lowered by the lifting assembly, allowing the staff to operate entirely on the ground, avoiding the need for staff to work in mid-air and improving the safety of the staff. At the same time, the lifting rail is supported by the support block to prevent the pallet trolley from tilting when entering or leaving the lifting rail, improving the stability when the lifting rail is connected to the straight rail. The lifting rail and straight rail are pulled by the docking component to prevent the lifting rail from separating from the straight rail under the action of reaction force when the pallet trolley leaves the lifting rail, thus improving the safety of the device during operation.

[0008] Preferably, as an improvement, the first docking plate is L-shaped, and the second docking plate includes an integrally formed fastening part and a fixing part. The fixing part is located on the outer wall of the lifting track, and the fastening part is n-shaped, which can hook with the first docking plate.

[0009] The beneficial effects are as follows: During the process of the lifting rail rising and connecting with the straight rail, the fastening part can guide the first connecting plate to prevent the lifting rail from rotating and causing a collision during connection, reducing the difficulty of connecting the lifting rail and the straight rail and shortening the connection time. After the lifting rail and the straight rail are connected, the hooking relationship between the fastening part and the connecting plate can prevent the lifting rail from accidentally detaching from the straight rail, 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 installed on the outer wall of the straight track, and the two ends of the connecting ring are respectively connected to the ends of the two support blocks that are far apart from each other.

[0011] The beneficial effect is that by connecting the two support blocks with the connecting ring, the staff can slide the two support blocks by moving the connecting ring, thereby improving the docking efficiency between the lifting track and the straight track.

[0012] Preferably, the first driving component is an electric hoist, and the 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 the end of the lifting track away from the straight track.

[0014] The beneficial effects are: the limiting plate is used to prevent the pallet trolley from sliding off the lifting track, thus avoiding safety accidents such as the trolley falling during the transfer process.

[0015] Preferably, as an improvement, it further includes a second driving member and two sets of traction components. The second driving member is located at the upper end of the straight track, and its output end is connected to the connecting ring. The two sets of traction components are symmetrically arranged on both sides of the straight track. Each traction component includes a guide rail, a slider, and two sets of transmission components. The guide rail is located on the side wall of the straight track, and the slider is slidably installed inside the guide rail. The first docking plate is located at the end of the slider away from the straight track. The two sets of transmission components are symmetrically arranged on the upper and lower sides of the guide rail. Each transmission component 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 located on the outer wall of the first docking plate and meshes with the transmission gear. The second rack is located at the end of the connecting ring near the guide rail and meshes with the transmission gear. The first rack and the second rack are parallel.

[0016] During the loading and unloading of pallet trolleys, to prevent collisions and deformations between the second and first docking plates, and between the lifting rail and the straight rail, which could cause significant shaking of the pallet trolley during transfer or even separation of the lifting rail and straight rail, leading to the pallet trolley falling, workers typically leave a certain gap between the second and first docking plates, and between the lifting rail and the straight rail, to avoid collisions during docking. However, a gap is usually left between the first and second docking plates. The gap will prevent the first and second docking plates from fitting tightly, causing frequent horizontal collisions between the first and second docking plates during loading and unloading of the pallet trolley. This will significantly reduce the service life of the docking components. Furthermore, because a gap is reserved between the first and second docking plates, the gap between the lifting rail and the straight rail after docking is larger than the original reserved gap. The wheel mechanism of the pallet trolley will frequently pass through this gap during loading and unloading, causing the lifting rail to vibrate frequently. This frequent vibration will accelerate the damage of the first drive component, and may even cause the first drive component to fail, resulting in the lifting rail falling.

[0017] In this design, the second driving component pushes the connecting ring, which in turn pushes the support block to support the lifting track. During the movement of the connecting ring, the second rack drives the transmission gear to rotate, which in turn drives the first rack to move. The first rack moves in the opposite direction to the second rack. 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 and the second docking plate are hooked together, the lifting track moves closer to the straight track until the lifting track is in contact with the straight track without any gaps. This prevents the pallet trolley from shaking during loading and unloading, improves the stability of the device during operation, and ensures the safety of the workers.

[0018] Preferably, the second driving component is a telescopic cylinder.

[0019] Preferably, the bracket has a mounting base on its outer wall, a lifting ring at the lower end of the mounting base, and a hook at the upper end of the first driving component, which can hook the lifting ring. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural schematic diagram of the lifting assembly in Embodiment 1 of this utility model;

[0021] Figure 2 This is a three-dimensional structural diagram of the lifting assembly in Embodiment 1 of this utility model, viewed from below.

[0022] Figure 3 for Figure 2 A magnified schematic diagram of the partial structure at point A in the middle;

[0023] Figure 4 This is a three-dimensional structural schematic diagram of the pallet trolley operation and maintenance device according to Embodiment 2 of this utility model;

[0024] Figure 5 This is a three-dimensional structural schematic diagram of the traction component in Embodiment 2 of this utility model;

[0025] Figure 6 for Figure 5 A magnified schematic diagram of the structure at point B in the middle. Detailed Implementation

[0026] The following detailed description illustrates the specific implementation method:

[0027] The reference numerals in the accompanying drawings include: support frame 1, straight rail 2, bracket 3, first drive component 4, lifting rail 5, mounting base 6, lifting ring 7, hook 8, limiting plate 9, first docking plate 10, second docking plate 11, fastening part 12, fixing part 13, fixing ring 14, support block 15, connecting ring 16, second drive component 17, guide rail 18, slider 19, first rack 20, second rack 21, and transmission gear 22.

[0028] Example 1

[0029] Example 1 is basically as shown in the appendix. Figures 1-2 As shown, Figure 1The illustrated pallet trolley operation and maintenance device includes a support frame 1 and a bracket 3. The support frame 1 is used to install a straight rail 2, which is fixedly installed to the upper wall of the support frame 1 by welding. The bracket 3 is F-shaped, with two legs at the lower end of the bracket 3 fixedly installed to the upper front side of the support frame 1 by welding. A lifting assembly is provided at the front end of the bracket 3, which includes a first drive component 4, a lifting rail 5, and two sets of docking parts. A mounting base 6 is fixedly installed on the outer wall of the bracket 3 by bolts, and a lifting ring 7 is fixedly installed at the lower end of the mounting base 6 by welding. A hook 8 is fixedly installed at the upper end of the first drive component 4, and the first drive component 4 hooks the lifting ring 7 through the hook 8. The first drive component 4 is an electric hoist. The upper end of the lifting rail 5 is fixedly connected to the chain of the electric hoist. The first drive component 4 can drive the lifting rail 5 to move up and down. A limit plate 9 is fixedly installed at the front end of the lifting rail 5 by welding. The pallet trolley can move within the lifting rail 5 and the straight rail 2 through a wheel mechanism. Figure 2 The two sets of docking components shown are symmetrically arranged on the left and right sides of the straight track 2 and the lifting track 5, close to each other at one end. The docking components include a first docking plate 10 and a second docking plate 11, as shown. Figure 3 The first docking plate 10 shown is L-shaped. One side of the first docking plate 10 is fixedly installed parallel to the outer wall of the straight track 2 by welding. 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 fastening part 12 and a fixing part 13. The fixing part 13 is fixedly installed parallel to the outer wall of the lifting track 5 by welding. The fastening part 12 is n-shaped. When the lifting track 5 is parallel to the straight track 2, the fastening part 12 can hook with the 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 blocks 15 can move 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 that are far away from each other by welding.

[0030] The specific implementation process is as follows:

[0031] When the trolley malfunctions, the operator uses the switch control to push the malfunctioning trolley into the straight track 2. Then, the operator activates the first drive component 4 to raise the lifting track 5 until it is parallel to the straight track 2. During the process of the lifting track 5 rising and connecting with the straight track 2, the fastening part 12 guides the first connecting plate 10 to prevent the lifting track 5 from rotating and colliding during connection, thus reducing the difficulty of connecting the lifting track 5 with the straight track 2 and shortening the connection time. After the lifting track 5 and the straight track 2 are connected, the fastening part 12 and the connecting plate... The hook-and-loop connection prevents the lifting rail 5 from accidentally detaching from the straight rail 2, avoiding safety accidents such as the trolley falling during transfer, and further ensuring the safety of maintenance operations. Then, the worker pushes the connecting ring 16 towards the lifting rail 5 using a long rod, causing the support block 15 to slide out of the straight rail 2 and extend to the lower end of the lifting rail 5. When the faulty trolley just enters the lifting rail 5, the end of the lifting rail 5 closest to the straight rail 2 is instantly subjected to downward gravity. At this time, the support block 15 supports the end of the lifting rail 5 closest to the straight rail 2, preventing the lifting rail 5 from detaching. The tilting mechanism hinders the malfunctioning trolley from entering the lifting rail 5. Once the malfunctioning trolley is fully inside the lifting rail 5, the first drive mechanism 4 is activated to lower the lifting rail 5, bringing the malfunctioning trolley down to the ground. Workers can then stand on the ground to remove the malfunctioning trolley from the lifting rail 5, avoiding the need for workers to stand on the forklift forks to support the trolley's wheels and ensuring the safety of maintenance personnel. When the repaired malfunctioning trolley needs to be reinstalled in the straight rail 2 for further work, workers activate the first drive mechanism 4 to lower the lifting rail 5, and then... The wheel mechanism of the faulty trolley is installed parallel to the lifting rail 5. Then, the first drive component 4 is activated to raise the lifting rail 5 until it is parallel to the straight rail 2. When the lifting rail 5 is parallel to the straight rail 2, the second docking plate 11 of the lifting rail 5 hooks with the first docking plate 10 of the straight rail 2. This prevents the lifting rail 5 from separating from the straight rail 2 under the action of the trolley's reaction force during the process of the trolley entering the straight rail 2, which would cause the trolley to fall. Finally, the support block 15 slides out to support the lifting rail 5, improving the stability of the trolley during loading and unloading.

[0032] In this solution, the pallet trolley is raised and lowered by a lifting assembly, allowing workers to operate entirely on the ground, avoiding work in mid-air and improving worker safety. Simultaneously, the support block 15 supports the lifting track 5, preventing the pallet trolley from tilting when entering or exiting the track, thus improving the stability of the lifting track 5 when docking with the straight track 2. Furthermore, the docking component pulls the lifting track 5 and the straight track 2 together, preventing the pallet trolley from separating from the track 5 due to reaction force when exiting the track, thereby enhancing the safety of the device during operation.

[0033] Example 2

[0034] Example 2 is largely the same in principle as Example 1, except that it also includes, for example... Figure 4 The second drive component 17 and two sets of traction components are shown. The second drive component 17 is fixedly installed on the upper end of the straight track 2. A baffle is fixedly installed on the upper end of the connecting ring 16, and the output end of the second drive component 17 is fixedly connected to the rear end of the baffle. The second drive component 17 is configured as a telescopic cylinder, such as... Figure 5 The two sets of traction components shown are symmetrically arranged on the left and right sides of the straight track 2, as follows: Figure 6 The traction assembly shown includes a guide rail 18, a slider 19, and two sets of transmission components. In this embodiment, the traction assembly on the right wall of the straight track 2 is taken as an example. The guide rail 18 is fixedly installed on the right wall of the straight track 2 by welding. The cross-section of the guide rail 18 is "convex". The slider 19 is set in "convex" shape and is slidably installed inside the guide rail 18. The side of the first docking plate 10 parallel to the right wall of the straight track 2 is fixedly installed on the end of the slider 19 that extends out of the guide rail 18 by welding. The two sets of transmission components are symmetrically arranged on the upper and lower sides of the guide rail 18. The transmission components include a first rack 20, a second rack 21, and a transmission gear 22. The transmission gear 22 is rotatably installed on the upper outer wall of the guide rail 18. The first rack 20 is fixedly installed on the upper outer wall of the first docking plate 10 by welding, and the first rack 20 meshes with the transmission gear 22. The second rack 21 is fixedly installed on the front end of the connecting ring 16 by welding, and the second rack 21 meshes with the transmission gear 22. The first rack 20 and the second rack 21 are parallel.

[0035] During the loading and unloading of pallet trolleys, to prevent collisions and deformations between the second docking plate 11 and the first docking plate 10, and between the lifting rail 5 and the straight rail 2, which could cause significant shaking of the pallet trolley during transfer or even separation of the lifting rail 5 and the straight rail 2, leading to the pallet trolley falling, workers typically leave a certain gap between the second docking plate 11 and the first docking plate 10, and between the lifting rail 5 and the straight rail 2, to avoid collisions during docking. However, a certain gap is maintained between the first docking plate 10 and the second docking plate 11. The reserved gap will prevent the first docking plate 10 and the second docking plate 11 from fitting tightly, causing the first docking plate 10 and the second docking plate 11 to collide frequently during the loading and unloading of the pallet trolley. This will significantly reduce the service life of the docking parts. Furthermore, because a gap is reserved between the first docking plate 10 and the second docking plate 11, the gap between the lifting rail 5 and the straight rail 2 after docking is larger than the original reserved gap. The wheel mechanism of the pallet trolley will frequently pass through this gap during loading and unloading, causing the lifting rail 5 to vibrate frequently. This frequent vibration will accelerate the damage of the first drive component 4, and may even cause the first drive component 4 to malfunction, resulting in the lifting rail 5 falling.

[0036] The second driving component 17 pushes the connecting ring 16, which in turn pushes the support block 15 to support the lifting track 5. During the movement of the connecting ring 16, the second rack 21 drives the transmission gear 22 to rotate, which in turn drives the first rack 20 to move. The first rack 20 and the second rack 21 move in opposite directions. 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 and the second docking plate 11 abut against each other, 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 and the second docking plate 11 hook together, causing the lifting track 5 to move closer to the straight track 2 until the lifting track 5 and the straight track 2 are aligned without any gap. This prevents the pallet trolley from shaking during loading and unloading, improves the stability of the device during operation, and ensures the safety of the workers.

[0037] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A pallet trolley operation and maintenance device, characterized in that: The system includes a support frame positioned on top of a straight track. A lifting assembly is located at the end of the support frame near the straight track. The lifting assembly includes a first drive component, a lifting track, and two sets of connecting components. The first drive component is located at the end of the support frame near the straight track, and the lifting track is located at the output end of the first drive component. The first drive component can drive the lifting track to move up and down. The two sets of connecting components are symmetrically positioned on both sides of the straight track and the lifting track at their respective ends. Each connecting component includes a first connecting plate and a second connecting plate. The first connecting plate is located on the outer wall of the straight track at the end near the lifting track, and the second connecting plate is located on the outer wall of the lifting track at the end near the straight track. When the lifting track is parallel to the straight track, the first connecting plate and the second connecting plate engage. A support block is symmetrically and slidably installed at the end of the straight track away from the support frame. The support block can move to the lower end of the lifting track for support.

2. The pallet trolley operation and maintenance device according to claim 1, characterized in that: The first docking plate is L-shaped, and the second docking plate includes an integrally formed fastening part and a fixing part. The fixing part is located on the outer wall of the lifting track, and the fastening part is n-shaped, which can hook 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 installed on the outer wall of the straight track, and the two ends of the connecting ring are respectively connected to the ends of the two support blocks that are far apart from each other.

4. The pallet trolley operation and maintenance device according to claim 3, characterized in that: The first driving component is an electric hoist, and the chain of the electric hoist is connected to the upper end of the lifting track.

5. The pallet trolley operation and maintenance device according to claim 4, characterized in that: A limit plate is provided at the 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: It also includes a second driving component and two sets of traction components. The second driving component is located at the upper end of the straight track, and its output end is connected to the connecting ring. The two sets of traction components are symmetrically arranged on both sides of the straight track. Each traction component includes a guide rail, a slider, and two sets of transmission components. The guide rail is located on the side wall of the straight track, and the slider is slidably installed inside the guide rail. The first docking plate is located at the end of the slider away from the straight track. The two sets of transmission components are symmetrically arranged on the upper and lower sides of the guide rail. Each transmission component 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 located on the outer wall of the first docking plate and meshes with the transmission gear. The second rack is located at the end of the connecting ring near the guide rail and meshes with the transmission gear. The first rack and the second rack are parallel.

7. A pallet trolley operation and maintenance device according to claim 6, characterized in that: The second driving component is a telescopic cylinder.

8. The pallet trolley operation and maintenance device according to claim 7, characterized in that: The bracket has a mounting base on its outer wall, a lifting ring at the lower end of the mounting base, and a hook at the upper end of the first drive component, which can hook the lifting ring.

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