A shock absorption mechanism for a track-mounted logistics robot
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUXI XINJULI TECH CO LTD
- Filing Date
- 2025-07-14
- Publication Date
- 2026-06-30
AI Technical Summary
When existing rail logistics robots transfer goods, traditional shock absorption structures can only buffer vertical vibrations and cannot cope with multidimensional vibrations in both horizontal and vertical directions at the same time. This causes the goods to sway laterally and be squeezed and fall off. In addition, the existing shock absorption structures have low vibration force dispersion efficiency and lag in buffering during high-frequency vibrations, which affects the stability of equipment operation and the safety of goods.
The system employs a movable damping mechanism, including a guide plate, sliding column, counterweight, and multiple springs. Through mechanical transmission and sliding friction combined with elastic deformation, it forms multiple damping paths to absorb vibration forces in both horizontal and vertical directions. Furthermore, the system enhances the damping effect in the vertical direction through an auxiliary buffer structure, thus creating a dual buffer system.
It effectively improves the efficiency of vibration force dispersion, reduces the vibration amplitude of the equipment, reduces the crushing and falling of goods caused by lateral swaying, and ensures operational stability and cargo safety.
Smart Images
Figure CN224428987U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of logistics robot technology, and in particular to a shock absorption mechanism for a track-based logistics robot. Background Technology
[0002] Robots are widely used in the logistics and transportation industry. Logistics delivery robots are mainly used for indoor logistics tasks. They can autonomously transport goods and navigate freely in their environment. However, track-based logistics robots are prone to violent shaking when moving, and their shock absorption effect is not good, which can cause goods to shake and fall and be damaged.
[0003] Existing equipment typically has drive wheels mounted on the bottom for movement on tracks. When transporting goods, the equipment is prone to bumps, causing severe vibrations or tipping, which can lead to the crushing or falling of goods and damage. Furthermore, the existing drive wheels are easily worn or damaged by impacts, making it inconvenient to disassemble and repair or replace them.
[0004] An existing patent (publication number: CN 222844156U) discloses a shock absorption mechanism for a track logistics robot. This utility model solves the problems that the equipment is prone to bumps when transporting goods, causing the equipment to vibrate violently or tip over, resulting in the goods being squeezed or falling and causing damage. In addition, the existing drive wheels are prone to wear or collisions, making it inconvenient to disassemble and install the drive wheels for inspection or replacement.
[0005] To address the aforementioned issues, existing patents offer solutions. However, when existing track-based logistics robots transport goods, the track wheels at the bottom of the equipment encounter bumps while moving on the track. Traditional shock-absorbing structures often employ a single-direction buffering design, only buffering vibrations in the vertical direction of the track wheels. This fails to simultaneously cope with multi-dimensional vibrations in both the horizontal and vertical directions, causing goods to be squeezed and fall off as the track wheels sway laterally. Furthermore, existing shock-absorbing structures often rely on a single spring or shock absorber near the track wheels, resulting in low vibration dispersion efficiency. During high-frequency vibrations, the buffering lag causes excessive vibration amplitude, affecting not only the stability of the track wheels but also threatening the safety of the goods.
[0006] To address this, a shock absorption mechanism for a track-based logistics robot is proposed. Utility Model Content
[0007] The purpose of this invention is to provide a shock absorption mechanism for a track-based logistics robot. This mechanism addresses the problem that existing track-based logistics robots, when transporting goods, often employ a single-direction buffering design when the track wheels at the bottom of the device encounter bumps on the track. This design only buffers vibrations in the vertical direction of the track wheels and cannot simultaneously cope with multi-dimensional vibrations in both the horizontal and vertical directions. Consequently, goods are squeezed and fall off as the track wheels sway laterally. Furthermore, existing shock absorption structures often rely on a single spring or shock absorber near the track wheels, resulting in low vibration dispersion efficiency and delayed buffering during high-frequency vibrations. This leads to excessive vibration amplitude, affecting not only the stability of the track wheels but also threatening the safety of the goods.
[0008] To achieve the above objectives, this utility model provides the following technical solution: a shock absorption mechanism for a track logistics robot, comprising a robot body, wherein fixed plates are bolted to the four corners of the bottom of the robot body, and a movable shock absorption mechanism is provided at the bottom of the fixed plates.
[0009] The movable shock absorption mechanism includes a guide plate embedded in the inner sides of the bottom of the fixed plate. A guide groove is provided at the bottom of the guide plate. A sliding column is fixedly connected inside the guide groove. A counterweight is slidably connected to the middle of the surface of the sliding column. A first spring is provided on both the inner and rear sides of the guide groove. The first spring is sleeved on the outer side of the sliding column. The inner side of the first spring is fixedly connected to the outer side of the counterweight. A push-rotate structure is provided at the bottom of the counterweight. An auxiliary buffer structure is provided in the middle of the top of the fixed plate. A center block is fixedly connected to the inner side of the push-rotate structure. The top of the center block is fixedly connected to the bottom of the auxiliary buffer structure. A track wheel is bolted to the bottom of the center block.
[0010] Preferably, the auxiliary buffer structure includes a lifting block embedded in the middle of the inner side of the bottom of the fixed plate, the lifting block being located inside the guide plate.
[0011] Preferably, a buffer telescopic rod is fixedly connected to the bottom of the lifting block, and the bottom of the buffer telescopic rod is fixedly connected to the top of the central block.
[0012] Preferably, a second spring is sleeved on the outer side of the buffer telescopic rod, the top of the second spring is fixedly connected to the bottom of the hanging block, and the bottom of the second spring is fixedly connected to the top of the center block.
[0013] Preferably, the push-rotating structure includes a first rotating block fixedly connected to the bottom of the counterweight, and second rotating blocks fixedly connected to all four sides of the outer side of the center block.
[0014] Preferably, a rotating push plate is rotatably connected to the outer side of the first rotating block, and the end of the rotating push plate away from the first rotating block is rotatably connected to the outer side of the second rotating block.
[0015] Preferably, an auxiliary groove is provided on the outer side of the guide groove, and an auxiliary block is fixedly connected to the outer side of the counterweight, with the auxiliary block slidably connected inside the auxiliary groove.
[0016] Preferably, the top and bottom of the auxiliary block are provided with grooves, and a rotating shaft is rotatably connected inside the groove, with the surface of the rotating shaft in contact with the inner wall of the auxiliary groove.
[0017] Compared with the prior art, the beneficial effects of this utility model are:
[0018] 1. This application sets up a mobile shock absorption mechanism. When the track wheels at the bottom of the robot body encounter bumps, the push-rotating structure rotates downward and extends, pushing the counterweight block to slide outward along the sliding column in the guide groove. At this time, the counterweight block compresses the first spring on the outer side of the guide groove and stretches the first spring on the inner side, so that the first springs on the inner and outer sides generate elastic deformation simultaneously, absorbing the vibration force in the horizontal and vertical directions simultaneously. This overcomes the shortcomings of the traditional single vertical buffer design. In this process, the center block drives the counterweight block to move through the push-rotating structure, dispersing the vibration force to the guide plate and guide groove through mechanical transmission. Combined with the frictional damping of the counterweight block sliding on the sliding column, it forms a multiple shock absorption path of "mechanical transmission + sliding friction + elastic deformation" with the elastic buffer of the first spring, which effectively improves the vibration force dispersion efficiency, solves the problem of high-frequency vibration buffer lag, reduces the vibration amplitude of the equipment, reduces the crushing and falling of goods caused by the lateral sway of the track wheels, and ensures the stability of operation and the safety of goods.
[0019] 2. This application sets up an auxiliary damping structure, which is connected and in contact with the central block. Together with the push-rotating structure, the vibration force is dispersed through mechanical transmission. At the same time, the buffering effect of the auxiliary damping structure further enhances the vertical damping effect. Together with the moving damping mechanism, multiple buffering paths are formed, which further improves the vibration force dispersion efficiency and solves the problem of buffer lag during high-frequency vibration. Attached Figure Description
[0020] Figure 1 This is an overall structural diagram of the shock absorption mechanism of the track logistics robot of this utility model;
[0021] Figure 2 This is a structural diagram of the mobile shock absorption mechanism of this utility model;
[0022] Figure 3 This is a structural diagram of the auxiliary buffer structure of this utility model;
[0023] Figure 4 This is a structural diagram of the push-rotating structure of this utility model;
[0024] Figure 5 This is a structural diagram of the guide plate of this utility model.
[0025] In the diagram, 1. Robot body; 2. Fixed plate; 3. Moving shock absorption mechanism; 31. Guide plate; 32. Guide groove; 33. Sliding column; 34. Counterweight; 35. First spring; 36. Push-rotate structure; 361. First rotating block; 362. Second rotating block; 363. Rotating push plate; 37. Auxiliary buffer structure; 371. Lifting block; 372. Buffer telescopic rod; 373. Second spring; 38. Center block; 39. Track wheel; 4. Auxiliary groove; 5. Auxiliary block; 6. Groove; 7. Rotating shaft. Detailed Implementation
[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0027] Please see Figure 1-5 The present invention provides the following technical solution:
[0028] A shock absorption mechanism for a track logistics robot includes a robot body 1, with fixed plates 2 bolted to the four corners of the bottom of the robot body 1, and a movable shock absorption mechanism 3 provided at the bottom of the fixed plates 2.
[0029] The movable shock absorption mechanism 3 includes a guide plate 31 embedded in the inner sides of the bottom perimeter of the fixed plate 2. A guide groove 32 is provided at the bottom of the guide plate 31. A sliding column 33 is fixedly connected inside the guide groove 32. A counterweight block 34 is slidably connected to the middle of the surface of the sliding column 33. A first spring 35 is provided on both the inner and rear sides of the guide groove 32. The first spring 35 is sleeved on the outer side of the sliding column 33. The inner side of the first spring 35 is fixedly connected to the outer side of the counterweight block 34. A push-rotating structure 36 is provided at the bottom of the counterweight block 34. An auxiliary buffer structure 37 is provided in the middle of the top of the fixed plate 2. A center block 38 is fixedly connected to the inner side of the push-rotating structure 36. The top of the center block 38 is fixedly connected to the bottom of the auxiliary buffer structure 37. A track wheel 39 is bolted to the bottom of the center block 38.
[0030] In this embodiment: By setting fixed plates 2 at the four corners of the bottom of the robot body 1, and configuring a movable shock absorption mechanism 3 at the bottom of the fixed plates 2, the counterweight 34, which is embedded in the bottom of the fixed plates 2, can slide along the sliding column 33 in the guide groove 32 when the track wheel 39 encounters bumps. At the same time, it compresses or stretches the first spring 35 on the inner and outer sides of the guide groove 32. The spring elastic deformation synchronously absorbs the vibration force in the horizontal and vertical directions, which changes the shortcomings of the traditional single vertical buffer design. The push-rotating structure 36 at the bottom of the counterweight 34 is linked with the center block 38, which can transmit the vibration force mechanically. The vibration is dispersed to the structure of guide plate 31 and guide groove 32, and combined with the friction damping generated by the sliding of counterweight block 34, it forms a multi-stage damping path of "mechanical transmission + sliding friction + elastic deformation" with the first spring 35, which effectively improves the vibration force dispersion efficiency and solves the problem of buffer lag during high-frequency vibration. In addition, the auxiliary damping structure 37 in the middle of the top of the fixed plate 2 is connected to the center block 38, which further enhances the vertical damping effect and forms a double buffer with the main structure of the moving damping mechanism 3, reducing the vibration amplitude of the equipment and reducing the squeezing and falling of goods caused by the lateral swaying of the track wheel 39, thus ensuring the running stability of the track wheel 39 and the safety of goods transportation.
[0031] Specifically, such as Figure 3 As shown, the auxiliary buffer structure 37 includes a hanging block 371 embedded in the middle of the inner side of the bottom of the fixed plate 2, and the hanging block 371 is located inside the guide plate 31.
[0032] Specifically, such as Figure 3 As shown, a buffer telescopic rod 372 is fixedly connected to the bottom of the lifting block 371, and the bottom of the buffer telescopic rod 372 is fixedly connected to the top of the center block 38.
[0033] Specifically, such as Figure 3 As shown, a second spring 373 is sleeved on the outer side of the buffer telescopic rod 372. The top of the second spring 373 is fixedly connected to the bottom of the hanging block 371, and the bottom of the second spring 373 is fixedly connected to the top of the center block 38.
[0034] In this embodiment: by setting an auxiliary damping structure 37, a hanging block 371 is set in the middle of the inner side of the bottom of the fixed plate 2, and a buffer telescopic rod 372 and a second spring 373 are connected to the bottom of the hanging block 371. When the track wheel 39 vibrates, the central block 38 drives the buffer telescopic rod 372 to compress or extend, and the outer second spring 373 simultaneously generates elastic deformation. Through the damping buffer of the buffer telescopic rod 372 and the elastic reset of the second spring 373, the vertical shock absorption effect is enhanced. Combined with other shock absorption structures, a synergistic buffering system is formed, which further reduces the vibration amplitude of the equipment, solves the problem of insufficient vertical shock absorption in traditional single buffer design, and ensures the stability of goods transportation.
[0035] Specifically, such as Figure 4As shown, the push-rotating structure 36 includes a first rotating block 361 fixedly connected to the bottom of the counterweight block 34, and a second rotating block 362 fixedly connected to all four sides of the outer side of the center block 38.
[0036] Specifically, such as Figure 4 As shown, a rotating push plate 363 is rotatably connected to the outer side of the first rotating block 361, and the end of the rotating push plate 363 away from the first rotating block 361 is rotatably connected to the outer side of the second rotating block 362.
[0037] In this embodiment: by setting a push-rotating structure 36, a first rotating block 361 is set at the bottom of the counterweight block 34, and a second rotating block 362 is set around the center block 38, and the two are connected by a rotating push plate 363. When the track wheel 39 encounters a bump, the center block 38 drives the second rotating block 362 to move upward. As a result, the rotating push plate 363 on the outside of the second rotating block 362 deflects and pushes the first rotating block 361 and the counterweight block 34 to slide in the guide groove 32, converting the vibration force into the mechanical transmission potential energy of the rotating push plate 363. This design converts vertical vibration into horizontal sliding potential energy. Combined with the elastic buffer of the first spring 35, a composite shock absorption path of "mechanical transmission + elastic deformation" is formed, which effectively disperses multi-dimensional vibration force, improves the buffering efficiency during high-frequency vibration, and prevents goods from being squeezed and falling due to lateral shaking.
[0038] Specifically, such as Figure 5 As shown, an auxiliary groove 4 is provided on the outer side of the inside of the guide groove 32, and an auxiliary block 5 is fixedly connected to the outer side of the counterweight 34. The auxiliary block 5 is slidably connected inside the auxiliary groove 4.
[0039] Specifically, such as Figure 5 As shown, the top and bottom of the auxiliary block 5 are provided with grooves 6, and a rotating shaft 7 is rotatably connected inside the groove 6. The surface of the rotating shaft 7 is in contact with the inner wall of the auxiliary groove 4.
[0040] In this embodiment: by setting an auxiliary groove 4, an auxiliary block 5, a groove 6, and a rotating shaft 7, the auxiliary groove 4 is opened on the outside of the guide groove 32, the auxiliary block 5 is set on the outside of the counterweight 34, and the rotating shaft 7 is installed in the groove 6 at the top and bottom of the auxiliary block 5. When the counterweight 34 slides in the guide groove 32, the auxiliary block 5 drives the rotating shaft 7 to roll in the auxiliary groove 4, converting sliding friction into rolling friction. This reduces motion resistance, and at the same time, the contact between the rotating shaft 7 and the inner wall of the auxiliary groove 4 constrains the movement trajectory of the counterweight 34, preventing it from deviating. This part of the structure not only improves the sliding stability of the counterweight 34, but also dissipates some vibration force through rolling friction. Combined with the elastic buffer of the first spring 35, it further enhances the absorption effect of multidimensional vibration and ensures the long-term reliability of the shock absorption mechanism.
[0041] Working Principle: In the use of the shock absorption mechanism of the track logistics robot, firstly, when the track wheel 39 at the bottom of the robot body 1 encounters bumps while moving on the track, the vibration is first transmitted to the push-rotating structure 36 through the central block 38. The central block 38 drives the second rotating blocks 362 around it to move upward, causing the rotating push plate 363 to deflect and rotate, pushing the first rotating block 361 at the bottom of the counterweight block 34. This drives the counterweight block 34 to slide outward along the sliding column 33 in the guide groove 32. At this time, the counterweight block 34 compresses the first spring 35 on the outer side of the guide groove 32 and stretches the first spring 35 on the inner side. The elastic deformation of the inner and outer first springs 35 simultaneously absorbs the horizontal and vertical vibration forces. At the same time, the auxiliary block 5 on the outer side of the counterweight block 34 drives the rotating shaft 7 to roll in the auxiliary groove 4 on the outer side of the guide groove 32, converting sliding friction into rolling friction, which reduces motion resistance and facilitates the movement of the robot. The rolling friction dissipates some of the vibration force, and the contact between the rotating shaft 7 and the inner wall of the auxiliary groove 4 can constrain the movement trajectory of the counterweight 34 and prevent deviation. At the same time, when the center block 38 moves upward, it will compress the buffer telescopic rod 372 of the auxiliary buffer structure 37, and the second spring 373 on the outside will simultaneously generate elastic deformation. Through the damping buffer of the buffer telescopic rod 372 and the elastic reset of the second spring 373, the vertical shock absorption effect is enhanced. In the whole process, the vibration force is gradually dispersed through multiple paths such as the mechanical transmission of the push-rotating structure 36, the sliding of the counterweight 34 and the elastic deformation of the first spring 35, the friction loss between the auxiliary groove 4 and the rotating shaft 7, and the double buffer of the auxiliary buffer structure 37. This effectively solves the shortcomings of the traditional single buffer design, reduces the vibration amplitude of the equipment, reduces the crushing and falling of goods due to lateral swaying, and ensures the running stability of the track wheel 39 and the safety of cargo transportation.
[0042] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A shock absorption mechanism for a track-based logistics robot, comprising a robot body (1), characterized in that: The robot body (1) has four fixed plates (2) bolted to its bottom corners, and the bottom of the fixed plates (2) is provided with a moving shock absorption mechanism (3). The movable shock absorption mechanism (3) includes a guide plate (31) embedded in the inner side of the bottom perimeter of the fixed plate (2). A guide groove (32) is provided at the bottom of the guide plate (31). A sliding column (33) is fixedly connected inside the guide groove (32). A counterweight (34) is slidably connected to the middle of the surface of the sliding column (33). A first spring (35) is provided on both the inner and rear sides of the guide groove (32). The first spring (35) is sleeved on the outer side of the sliding column (33). The inner side of the first spring (35) is fixedly connected to the outer side of the counterweight (34). The bottom of the counterweight (34) is provided with a push-rotating structure (36). The middle of the top of the fixed plate (2) is provided with an auxiliary buffer structure (37). The inner side of the push-rotating structure (36) is fixedly connected to a center block (38). The top of the center block (38) is fixedly connected to the bottom of the auxiliary buffer structure (37). The bottom of the center block (38) is bolted with a track wheel (39).
2. The shock absorption mechanism for a track-based logistics robot according to claim 1, characterized in that: The auxiliary buffer structure (37) includes a lifting block (371) embedded in the middle of the inner side of the bottom of the fixed plate (2), and the lifting block (371) is located inside the guide plate (31).
3. The shock absorption mechanism for a track-based logistics robot according to claim 2, characterized in that: The bottom of the lifting block (371) is fixedly connected to a buffer telescopic rod (372), and the bottom of the buffer telescopic rod (372) is fixedly connected to the top of the center block (38).
4. The shock absorption mechanism for a track-based logistics robot according to claim 3, characterized in that: A second spring (373) is sleeved on the outside of the buffer telescopic rod (372). The top of the second spring (373) is fixedly connected to the bottom of the hanging block (371), and the bottom of the second spring (373) is fixedly connected to the top of the center block (38).
5. The shock absorption mechanism for a track-based logistics robot according to claim 1, characterized in that: The push-rotating structure (36) includes a first rotating block (361) fixedly connected to the bottom of the counterweight (34), and a second rotating block (362) fixedly connected to all four sides of the outer side of the center block (38).
6. The shock absorption mechanism for a track-based logistics robot according to claim 5, characterized in that: A rotating push plate (363) is rotatably connected to the outer side of the first rotating block (361), and the end of the rotating push plate (363) away from the first rotating block (361) is rotatably connected to the outer side of the second rotating block (362).
7. The shock absorption mechanism for a track-based logistics robot according to claim 1, characterized in that: An auxiliary groove (4) is provided on the outer side of the inside of the guide groove (32), and an auxiliary block (5) is fixedly connected to the outer side of the counterweight (34). The auxiliary block (5) is slidably connected inside the auxiliary groove (4).
8. The shock absorption mechanism for a track-based logistics robot according to claim 7, characterized in that: The top and bottom of the auxiliary block (5) are provided with grooves (6), and a rotating shaft (7) is rotatably connected inside the groove (6). The surface of the rotating shaft (7) is in contact with the inner wall of the auxiliary groove (4).