Self-correcting device for walking of a traction type load carrying trolley

CN224727701UActive Publication Date: 2026-09-08SHANGHAI TOHUI ELECTROMECHANICAL TECH CO LTD
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Patent Information

Application Number
CN202521876763.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-01
Publication Date
2026-09-08
Estimated Expiration
2035-09-01

AI Technical Summary

Technical Problem

[0005]本实用新型的目的在于提供一种曳引式承载小车行走自纠偏装置,解决了轨道运输中偏移控制依赖外部动力、结构复杂、稳定性差的问题

Benefits of technology

[0015] 1. In this utility model, the sliding rod slides within the sliding groove frame, and its internal limiting block cooperates with the limiting groove of the sliding rod for guidance and limitation. At the same time, the limiting post on the sliding rod slides within the support groove of the support post, compressing the reset spring to store elastic potential energy, thereby achieving the effect of providing power for the reset required for the offset of the carrier vehicle, automatically adjusting the position of the carrier vehicle on the track, so that the carrier vehicle always travels in the center of the track, and the structure is simple and can achieve the effect of automatic correction without other power sources.

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Abstract

The utility model relates to the technical field of plastic bucket processing, specifically relates to a kind of towed load carrying trolley walking self-correcting device, including load carrying vehicle, the bottom of load carrying vehicle is slidably connected with track, the bottom both sides of load carrying vehicle are provided with correction mechanism, the far side of correction mechanism is externally provided with guide mechanism, the correction mechanism includes sliding slot frame, the top of sliding slot frame is fixedly connected in the bottom of load carrying vehicle, the similar side of sliding slot frame is fixedly connected with fixed component, the bottom of fixed component is fixedly connected with support column;The utility model, by the sliding of sliding rod in sliding slot frame, its internal limit block and the limit groove of sliding rod cooperation guide limit, while the limit post on sliding rod slides in the support groove of support column, compression reset spring stores elastic potential energy, to realize the effect of the offset required reset power to load carrying vehicle, automatically adjust the position of load carrying vehicle on track.
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Description

Technical Field

[0001] This utility model relates to the field of plastic bucket processing technology, and in particular to a traction-type load-bearing trolley self-correcting device. Background Technology

[0002] In modern industrial automated production and intelligent logistics systems, traction-type trolleys have become core equipment in production lines, warehousing, and other scenarios due to their efficient and stable material transport capabilities. These trolleys are driven by the friction between the traction rope and the traction sheave, running along a predetermined track. They offer advantages such as high load capacity, low operating noise, and high control precision, and are widely used in automobile manufacturing, electronic assembly, and pharmaceutical production.

[0003] The prior art patent document CN220264993U discloses a self-correcting device for the trolley of a bridge crane, which relates to the field of crane trolley correction technology. Specifically, it includes a main beam and a crane trolley body. A travel track is provided on the upper surface of the main beam. The crane trolley body is located above the main beam. A drive motor is provided on the inner side wall of the crane trolley body. A drive wheel is provided at one end of the output shaft of the drive motor. An installation module is bolted to one side of the crane trolley body. An installation plate is provided at one end of the installation module. A detection head is provided on the outer surface of the installation plate via a connecting rod. A micro switch is provided on the inner side wall of the detection head. A laser rangefinder is provided on the outer surface of the installation plate. An electric telescopic rod is provided on the inner side wall of the installation module. A rotating wheel is provided on the inner side wall of the connecting seat via a rotating shaft. This device has the beneficial effect of facilitating the detection of crane trolley deviation and improving the efficiency and accuracy of correction.

[0004] Existing technologies automatically calculate offsets through a central control module, thus facilitating the detection of crane trolley deviations. However, when dealing with trolley deviation issues, they rely excessively on external power systems for forced correction, increasing energy consumption and making the system highly dependent on external energy supplies. If the external power source fails, the entire correction system will be paralyzed. Furthermore, existing correction devices often employ complex mechanical structures and electronic control systems to achieve precise control. The combination of numerous components not only increases manufacturing costs and maintenance difficulty but also raises the risk of system failures during operation, making them unsuitable for user needs and lacking practicality. Utility Model Content

[0005] The purpose of this invention is to provide a self-correcting device for traction-type load-bearing trolleys, which solves the problems of deviation control in rail transportation relying on external power, complex structure, and poor stability.

[0006] To achieve the above objectives, this utility model provides a self-correcting device for a traction-type carrying trolley, comprising a carrying trolley, a track slidably connected to the bottom of the carrying trolley, correction mechanisms on both sides of the bottom of the carrying trolley, and a guide mechanism externally provided on the far side of each correction mechanism. Each correction mechanism includes a sliding frame, the top of which is fixedly connected to the bottom of the carrying trolley, a fixing component fixedly connected to the adjacent side of the sliding frame, a support column fixedly connected to the bottom of the fixing component, support grooves on both sides of the support column, a sliding rod slidably connected inside the sliding frame, a limiting groove inside the sliding rod, a limiting post fixedly connected to the adjacent side of the sliding rod, a limiting block fixedly connected inside the sliding frame, a return spring sleeved on the outside of the limiting post, a buffer ring fixedly connected to the far side of the sliding frame, and a support component rotatably connected to the outside of the sliding rod.

[0007] The guiding mechanism includes a rotating shaft, which is rotatably connected to the outer side of the slide rod. A connecting plate is fixedly connected to the outer side of the rotating shaft. Slide rail grooves are provided on both sides of the inner side of the connecting plate. Slider blocks are slidably connected to both sides of the inner side of the slide rail grooves. A positioning rod is slidably connected to the adjacent side of the slider. A retraction spring is sleeved on the outer side of the positioning rod.

[0008] The slider is fixedly connected to a rotating rod, and the rotating rod is rotatably connected to a guide roller. The adjacent sides of the guide roller are slidably connected to the outside of the track.

[0009] The outer two ends of the retraction spring are fixedly connected to the adjacent sides of the two sliders, and the outer support of the retraction spring is inside the slide rail groove.

[0010] The fixing component includes a connecting block, the bottom of which is fixedly connected to the top of the support column, a side plate fixedly connected to the top of the connecting block, a center plate fixedly connected to the traveling side of the side plate, the top of the center plate fixedly connected to the bottom of the carrier vehicle, the top of the side plate fixedly connected to both sides of the bottom of the carrier vehicle, and the adjacent side of the sliding frame fixedly connected to the outer sides of the side plate.

[0011] The support assembly includes a mounting frame, the interior of which is rotatably connected to the far side of the slide rod, and the interior of which is fixedly connected to the near side of the rotating shaft. Both sides of the interior of the rotating shaft are rotatably connected to wheels, and the exterior of the wheels are slidably connected to the outside of the track.

[0012] The limiting block is externally slidably connected to the inside of the limiting groove, and the limiting post is externally slidably connected to the inside of the support groove.

[0013] The outer sides of the return spring are respectively supported inside the slide rod and outside the support column, and the inner side of the slide rod is slidably connected to the outer side of the support column.

[0014] This utility model discloses a self-correcting device for the movement of a traction-type load-bearing trolley.

[0015] 1. In this utility model, the sliding rod slides within the sliding groove frame, and its internal limiting block cooperates with the limiting groove of the sliding rod for guidance and limitation. At the same time, the limiting post on the sliding rod slides within the support groove of the support post, compressing the reset spring to store elastic potential energy, thereby achieving the effect of providing power for the reset required for the offset of the carrier vehicle, automatically adjusting the position of the carrier vehicle on the track, so that the carrier vehicle always travels in the center of the track, and the structure is simple and can achieve the effect of automatic correction without other power sources.

[0016] 2. In this utility model, the sliding connection between the slider and the slide rail groove on the connecting plate, along with the cooperation of the positioning rod and the retraction spring, enables the guide roller to flexibly adjust its position and angle according to changes in the track angle or height and automatically reset. This solves the problem of guide failure caused by track changes during the operation of the carrier vehicle, ensuring that the guide roller and the track are always in good contact and continuously and stably guide the carrier vehicle. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0019] Figure 2 This is a schematic diagram of the structure of the rotating wheel of this utility model.

[0020] Figure 3 This is a structural schematic diagram of the support column of this utility model.

[0021] Figure 4 yes Figure 3 Enlarged view of point A in the middle.

[0022] Figure 5 This is a schematic diagram of the connecting plate of this utility model.

[0023] In the diagram: 1. Carrier vehicle; 2. Track; 3. Correction mechanism; 31. Support column; 32. Slide frame; 33. Slide rod; 34. Limiting groove; 35. Limiting column; 36. Limiting block; 37. Support groove; 38. Return spring; 39. Buffer ring; 4. Fixing assembly; 41. Center plate; 42. Side plate; 43. Connecting block; 5. Support assembly; 51. Mounting frame; 52. Rotating wheel; 6. Guide mechanism; 61. Rotating shaft; 62. Connecting plate; 63. Slide groove; 64. Slider; 65. Positioning rod; 66. Retraction spring; 67. Rotating rod; 68. Guide roller. Detailed Implementation

[0024] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0025] Please see Figures 1-5 This utility model provides a technical solution: a traction-type carrier trolley self-correcting device, including a carrier trolley 1, which is used to carry goods and realize the transportation function on the track 2. The bottom of the carrier trolley 1 is slidably connected to the track 2, which provides guidance and support for the movement of the carrier trolley 1, limits the movement trajectory of the carrier trolley 1, and ensures that it travels along a predetermined route. Correction mechanisms 3 are provided on both sides of the bottom of the carrier trolley 1, and a guide mechanism 6 is provided on the outer side of the far side of the correction mechanism 3.

[0026] The correction mechanism 3 includes a sliding frame 32, which provides a sliding track 2 for the sliding rod 33. The top of the sliding frame 32 is fixedly connected to the bottom of the carrier 1. A fixing component 4 is fixedly connected to the adjacent side of the sliding frame 32. A support column 31 is fixedly connected to the bottom of the fixing component 4. The support column 31 provides structural support for the entire correction mechanism 3, connects the fixing component 4 and the sliding rod 33, and provides a support point for the return spring 38. Support grooves 37 are provided on both sides of the inside of the support column 31. The support grooves 37 provide a track 2 for the sliding of the limiting column 35. The sliding rod 33 is slidably connected inside the sliding frame 32. When the carrier 1 deviates, the sliding rod 33 slides inside the sliding frame 32, transmitting the force generated by the deviation to the return spring 38. A limiting groove 34 is provided inside the sliding rod 33, which limits the sliding direction of the sliding rod 33. A support column 31 is fixedly connected to the adjacent side of the sliding rod 33. The limiting post 35 restricts the movement range of the slide rod 33 and provides an installation and force point for the return spring 38. The sliding frame 32 is fixedly connected to the limiting block 36, which cooperates with the limiting groove 34 of the slide rod 33 to guide and limit the sliding of the slide rod 33, ensuring that the slide rod 33 slides in a predetermined direction. The limiting post 35 is fitted with a return spring 38. When the carrier vehicle 1 deviates, the return spring 38 is compressed or stretched to store elastic potential energy. When the deviation force disappears, it releases the elastic potential energy to generate a restoring force, pushing the slide rod 33 to reset, thereby returning the carrier vehicle 1 to the correct track 2. The far side of the sliding frame 32 is fixedly connected to a buffer ring 39. The buffer ring 39 plays a role in buffering and shock absorption during the sliding of the slide rod 33, reducing the impact and wear between the slide rod 33 and the sliding frame 32. The slide rod 33 is rotatably connected to a support assembly 5.

[0027] The outer side of the limiting block 36 is slidably connected to the inside of the limiting groove 34, the outer side of the limiting post 35 is slidably connected to the inside of the support groove 37, the outer sides of the return spring 38 are respectively supported inside the slide rod 33 and outside the support post 31, and the inner side of the slide rod 33 is slidably connected to the outside of the support post 31.

[0028] The fixing component 4 includes a connecting block 43, which connects the support column 31 and the side plate 42, and transmits the force of the support column 31 to the side plate 42 and the carrier 1. The bottom of the connecting block 43 is fixedly connected to the top of the support column 31, and the top of the connecting block 43 is fixedly connected to the side plate 42. The side plate 42 assists the center plate 41 in fixing the correction mechanism 3 to the bottom of the carrier 1. The traveling side of the side plate 42 is fixedly connected to the center plate 41, which connects the carrier 1 and the side plate 42, and transmits the force of the correction mechanism 3 evenly to the carrier 1. The top of the center plate 41 is fixedly connected to the bottom of the carrier 1, and the top of the side plate 42 is fixedly connected to both sides of the bottom of the carrier 1. The adjacent side of the sliding frame 32 is fixedly connected to the outer sides of the side plate 42.

[0029] The support assembly 5 includes a mounting frame 51, which connects the slide rod 33 and the rotating shaft 61, providing a mounting base for the guide mechanism 6 and the rotating wheel 52, ensuring the relative position stability between the components. The interior of the mounting frame 51 is rotatably connected to the far side of the slide rod 33, and the interior of the mounting frame 51 is fixedly connected to the near side of the rotating shaft 61. The rotating shaft 61 has rotating wheels 52 rotatably connected to both sides inside. The rotating wheels 52 are in direct contact with the track 2. During the operation of the carrier vehicle 1, the wheel 52 deviates, causing it to press against the track 2 and push the slide rod 33 to slide within the slide frame 32, thus enabling the correction mechanism 3 to work. Rolling friction replaces sliding friction, reducing the friction between the carrier vehicle 1 and the track 2 and reducing energy loss. The exterior of the rotating wheels 52 is slidably connected to the exterior of the track 2.

[0030] like Figures 1-5 As shown, the guide mechanism 6 includes a rotating shaft 61, which serves as a component connecting the slide rod 33 and the connecting plate 62, providing rotational support for the connecting plate 62 and the guide roller 68. This allows the guide roller 68 to flexibly contact the track 2 and adjust its angle. The outer side of the rotating shaft 61 is rotatably connected to the far side of the slide rod 33, and the connecting plate 62 is fixedly connected to the far side of the outer side of the rotating shaft 61. The connecting plate 62 connects the rotating shaft 61 and the guide roller 68, providing an installation platform for the guide roller 68. Slide rail grooves 63 are provided on both sides of the inner surface of the connecting plate 62. The slide rail grooves 63 provide a sliding track 2 for the slider 64, restricting the movement direction of the slider 64. Slider 64 is slidably connected on both sides of the inner surface of the slide rail grooves 63. The slider 64 is connected to the rotating rod 67 and the contraction spring 66. When the angle and height of the track 2 are adjusted, the track 2 is aligned with the guide roller 68. The force is transmitted to the contraction spring 66. A positioning rod 65 is slidably connected to the adjacent side of the slider 64. The positioning rod 65 is used to limit the sliding range of the slider 64 and provide installation support for the contraction spring 66. The contraction spring 66 is sleeved on the outside of the positioning rod 65. The contraction spring 66 plays a role in buffering and resetting during the operation of the carrier 1. A rotating rod 67 is fixedly connected to the outside of the slider 64. The rotating rod 67 is used to transmit the force of the track 2 on the guide roller 68. The guide roller 68 is rotatably connected to the outside of the rotating rod 67. The guide roller 68 is in direct contact with the track 2 and provides guidance for the operation of the carrier 1. The adjacent sides of the guide roller 68 are slidably connected to the outside of the track 2. The two ends of the contraction spring 66 are fixedly connected to the adjacent sides of the two sliders 64. The outside of the contraction spring 66 is supported inside the slide rail groove 63.

[0031] Working principle: When the carrier 1 deviates while running on the track 2, the rotating wheels 52 on both sides of the bottom of the carrier 1 will press against the track 2. Since the rotating wheels 52 are rotatably connected to the rotating shaft 61, and the rotating shaft 61 is fixed in the mounting frame 51, which is rotatably connected to the sliding rod 33, the pressing of the rotating wheels 52 will push the sliding rod 33 to slide in the sliding groove frame 32. The top of the sliding groove frame 32 is fixed to the bottom of the carrier 1. The limiting block 36 inside it cooperates with the limiting groove 34 of the sliding rod 33 to guide and limit the sliding of the sliding rod 33. The limiting post 35 on the sliding rod 33 slides in the support groove 37 of the support post 31, and at the same time compresses the return spring 38 sleeved outside the limiting post 35, transmitting the force generated by the deviation to the return spring 38, so that the return spring 38 stores elastic potential energy. During this process, the buffer ring 39 on the far side of the sliding groove frame 32 plays a buffering and shock absorption role.

[0032] When the offset force of the carrier 1 disappears, the reset spring 38, which stores elastic potential energy, releases the elastic potential energy to generate a restoring force, pushing the slide bar 33 to reset. The slide bar 33 drives the mounting frame 51, the rotating shaft 61, and the rotating wheel 52 back to the initial position, so that the carrier 1 returns to the correct track 2. The support column 31 is connected to the carrier 1 through the fixing assembly 4. The center plate 41, the side plate 42, and the connecting block 43 in the fixing assembly 4 firmly connect the support column 31 to the carrier 1, providing structural support for the entire correction process.

[0033] When the carrier 1 runs on the track 2, the guide roller 68 of the guide mechanism 6 directly contacts the track 2 and provides guidance for the carrier 1. The guide roller 68 is rotatably connected to the rotating rod 67, which is fixed to the slider 64. The slider 64 slides in the slide rail groove 63 of the connecting plate 62, and the positioning rod 65 restricts the sliding range of the slider 64. If the angle or height of the track 2 changes, the track 2 exerts a force on the guide roller 68. This force is transmitted to the slider 64 through the rotating rod 67, causing the slider 64 to slide in the slide rail groove 63. At the same time, the compression spring 66 sleeved outside the positioning rod 65 is compressed, realizing the flexible adjustment of the angle and position of the guide roller 68, ensuring good contact with the track 2, and continuously guiding the carrier 1.

[0034] When the force exerted by the track 2 on the guide roller 68 disappears, the contraction spring 66, which stores elastic potential energy, releases the elastic potential energy and pushes the slider 64 to reset in the slide rail groove 63. The slider 64 drives the rotating rod 67 and the guide roller 68 back to their initial positions. The rotating shaft 61, as a component connecting the slide rod 33 and the connecting plate 62, provides rotational support for the connecting plate 62 and the guide roller 68, so that the entire guiding mechanism 6 can stably perform its guiding function in conjunction with the correction mechanism 3 during the operation of the carrier vehicle 1.

[0035] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that implementing all or part of the above embodiments and making equivalent changes in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A traction-type self-correcting device for a trolley, comprising a trolley, characterized in that: The bottom of the carrier is slidably connected to a track, and both sides of the bottom of the carrier are provided with a correction mechanism. The far side of the correction mechanism is provided with a guide mechanism. The correction mechanism includes a sliding frame, the top of which is fixedly connected to the bottom of the carrier vehicle. A fixing component is fixedly connected to the adjacent side of the sliding frame, and a support column is fixedly connected to the bottom of the fixing component. Support grooves are provided on both sides of the inside of the support column. A sliding rod is slidably connected inside the sliding frame. A limiting groove is provided inside the sliding rod. A limiting post is fixedly connected to the adjacent side of the sliding rod. A limiting block is fixedly connected inside the sliding frame. A return spring is sleeved on the outside of the limiting post. Buffer rings are fixedly connected to the more distant side of the sliding frame. A support component is rotatably connected to the outside of the sliding rod.

2. The self-correcting device for a traction-type load-bearing trolley according to claim 1, characterized in that: The guiding mechanism includes a rotating shaft, which is rotatably connected to the outer side of the slide rod. A connecting plate is fixedly connected to the outer side of the rotating shaft. Slide rail grooves are provided on both sides of the inner side of the connecting plate. Slider blocks are slidably connected to both sides of the inner side of the slide rail grooves. A positioning rod is slidably connected to the adjacent side of the slider. A retraction spring is sleeved on the outer side of the positioning rod.

3. The self-correcting device for a traction-type load-bearing trolley according to claim 2, characterized in that: A rotating rod is fixedly connected to the outside of the slider, and a guide roller is rotatably connected to the outside of the rotating rod. The adjacent sides of the guide roller are slidably connected to the outside of the track.

4. The self-correcting device for a traction-type load-bearing trolley according to claim 3, characterized in that: The two outer ends of the retraction spring are fixedly connected to the adjacent sides of the two sliders, and the outer support of the retraction spring is inside the slide rail groove.

5. The self-correcting device for a traction-type load-bearing trolley according to claim 1, characterized in that: The fixing component includes a connecting block, the bottom of which is fixedly connected to the top of the support column, a side plate fixedly connected to the top of the connecting block, a center plate fixedly connected to the traveling side of the side plate, the top of the center plate fixedly connected to the bottom of the carrier vehicle, the top of the side plate fixedly connected to both sides of the bottom of the carrier vehicle, and the adjacent side of the sliding frame fixedly connected to the outer sides of the side plate.

6. The self-correcting device for a traction-type load-bearing trolley according to claim 2, characterized in that: The support assembly includes a mounting frame, the interior of which is rotatably connected to the far side of the slide rod, and the interior of which is fixedly connected to the near side of the rotating shaft. Both sides of the interior of the rotating shaft are rotatably connected to wheels, and the exterior of the wheels are slidably connected to the outside of the track.

7. The self-correcting device for a traction-type load-bearing trolley according to claim 1, characterized in that: The outer side of the limiting block is slidably connected to the inside of the limiting groove, and the outer side of the limiting post is slidably connected to the inside of the support groove.

8. The self-correcting device for a traction-type load-bearing trolley according to claim 7, characterized in that: The outer sides of the return spring are respectively supported inside the slide rod and outside the support column, and the inner side of the slide rod is slidably connected to the outer side of the support column.

Citation Information

Patent Citations

  • Automatic deviation rectifying device for walking of bridge crane trolley

    CN220264993U