A self-propelled trolley wheel assisting device

Abstract

The application relates to a self-propelled trolley walking wheel auxiliary device and belongs to the technical field of conveying machines. The self-propelled trolley walking wheel auxiliary device comprises a sliding assembly which comprises a supporting frame and a roller rotatingly connected to the supporting frame. One end of the supporting frame is provided with a lifting block extending towards the radial direction of the roller and used for lifting a walking wheel box. Therefore, the corner of the walking wheel box can be lifted by the lifting block, the holding assembly is fixed on the walking wheel box, the pushing assembly is abutted against the holding assembly and the supporting frame is pushed by the pushing assembly, the supporting frame rotates around the roller, the lifting block lifts the walking wheel box as the supporting point of the roller, the corner of the walking wheel box abutting against the walking track is lifted and kept, the device can bear the load of the fault position, the roller can replace the fault walking wheel to walk on the track, the fault trolley can be quickly taken out of the circulating assembly line and introduced into the maintenance position, and the self-propelled trolley can be prevented from staying in the field when the self-propelled trolley is in fault, thereby causing a major shutdown.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of conveying machinery, in particular to a self-propelled trolley walking wheel auxiliary device. BACKGROUND

[0002] Electric Mover System (EMS) has been widely applied in the industrial field in recent years, and the conveying system is the soul of mass production in industry, so the rapid handling of sudden failures in the operation of the conveying system is an important factor that must be considered in the design of the conveying system.

[0003] The walking wheel, the expansion sleeve connected with the motor, and the motor are the core components of the conveying system of the electric mover system. Maintenance and replacement of these core components are the key to ensuring the operation of the electric mover system. Since the walking wheel is also a load-bearing wheel, the premise of replacing the walking wheel and the components connected therewith is to separate the walking wheel from the walking track.

[0004] During the operation of the self-propelled trolley conveying line, the trolley walking wheel may fail, which is specifically manifested as:

[0005] (1) The drive motor shaft is broken, the drive box sinks and sits on the walking track, and the drive wheel fails.

[0006] (2) The walking wheel bearing (front, middle, and rear) is broken, the walking wheel rotation fails, and the faulty walking wheel becomes a load.

[0007] In related technologies, when the walking wheel fails, the self-propelled trolley cannot move by itself or is difficult to move by external force, and the trolley walking wheel of the self-propelled trolley system needs to be separated from the walking track by installing a lifting point and a jacking hydraulic cylinder for maintenance and repair. The maintenance worker needs to perform on-site maintenance for a long time, which occupies the walking track, so that other self-propelled trolleys without failure cannot participate in the circulating line operation, resulting in the stagnation of the entire circulating line and causing the production line to stop working. Meanwhile, when the maintenance worker performs high-altitude operation on the track, the maintenance time and safety are uncertain.

[0008] Therefore, a device is needed to separate the faulty part (drive wheel or faulty walking wheel) of the self-propelled trolley from the track, and to bear the load of the faulty part by using the device, so as to facilitate the withdrawal of the faulty trolley from the circulating line (into a maintenance position) to avoid the self-propelled trolley from being stranded on site when it fails, causing major stoppage. SUMMARY

[0009] Embodiments of the present application provide a self-propelled trolley walking wheel auxiliary device to solve the problem that the faulty trolley cannot be quickly withdrawn from the circulating line after the walking wheel of the self-propelled trolley fails in related technologies, which easily causes the faulty trolley to be stranded on site and causes major stoppage.

[0010] The self-propelled trolley walking wheel auxiliary device provided by the embodiments of the present application comprises:

[0011] The sliding assembly comprises a support frame and a roller rotatably connected to the support frame, and one end of the support frame is provided with a lifting block extending in the radial direction of the roller and used for lifting the walking wheel box body;

[0012] The holding assembly is rotatably connected to the support frame and used for fixing the walking wheel box body;

[0013] The pushing assembly is abutted against the holding assembly and drives the support frame to rotate around the roller so as to lift the walking wheel box body by the support frame and the lifting block.

[0014] In some embodiments, the support frame comprises a connecting block used for connecting the pushing assembly and two side plates fixed at two ends of the connecting block respectively, the roller is rotatably connected between the two side plates, and the lifting block is integrally formed at one end of the side plate away from the connecting block.

[0015] In some embodiments, the holding assembly comprises a support rod, one end of the support rod is rotatably connected to the support frame, and the other end of the support rod is a free end and abuts against the pushing assembly.

[0016] In some embodiments, the holding assembly further comprises a fixing member arranged on the support rod and used for fixing the walking wheel box body.

[0017] In some embodiments, the fixing member comprises a horizontal plate fixedly connected to the support rod and extending along the length direction of the walking wheel box body, and a vertical plate fixedly connected to the horizontal plate and abutting against the walking wheel box body.

[0018] In some embodiments, a reinforcing rib is arranged between the horizontal plate and the support rod.

[0019] In some embodiments, the pushing assembly comprises a lead screw rotatably connected to the support frame, and one end of the lead screw abuts against the holding assembly.

[0020] In some embodiments, the pushing assembly further comprises a booster rod, and one end of the lead screw away from the holding assembly is provided with a through hole for the booster rod to pass through.

[0021] In some embodiments, the pushing assembly further comprises a pad, and one end of the lead screw abuts against the holding assembly through the pad.

[0022] In some embodiments, the pushing assembly is a jack fixed to the holding assembly or the support frame.

[0023] The technical scheme provided by the present application has the beneficial effects of:

[0024] The self-propelled trolley walking wheel auxiliary device provided by the embodiment of the application comprises a sliding assembly, a support frame, and a roller rotatably connected to the support frame. One end of the support frame is provided with a lifting block extending in the radial direction of the roller and used for lifting a walking wheel box. A clamping assembly is rotatably connected to the support frame and used for fixing the walking wheel box. A pushing assembly is abutted against the clamping assembly and drives the support frame to rotate around the roller so as to drive the support frame to lift the walking wheel box through the lifting block.

[0025] Therefore, the corner of the walking wheel box can be lifted by the lifting block, the clamping assembly is fixed on the walking wheel box, the pushing assembly is abutted against the clamping assembly and the support frame is pushed by the pushing assembly, the support frame rotates around the roller, the lifting block lifts the walking wheel box as the fulcrum of the roller, the corner of the walking wheel box abutting against the walking track is lifted and kept, the device can bear the load of the fault position, the roller can replace the fault walking wheel to walk on the track, the fault trolley can be quickly taken out of the circulating assembly line and introduced into the maintenance position, and the self-propelled trolley can be prevented from staying in the field and causing a major shutdown. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative effort.

[0027] Figure 1 The figure is a structural schematic diagram of the embodiment of the application.

[0028] Figure 2 The figure is an exploded structural schematic diagram of the embodiment of the application.

[0029] Figure 3 The figure is an implementation schematic diagram of the embodiment of the application.

[0030] In the drawings, the components represented by the numbers are listed as follows.

[0031] 1, sliding assembly; 11, support frame; 111, connecting block; 112, side plate; 12, roller; 13, lifting block;

[0032] 2, clamping assembly; 21, support rod; 22, fixing piece; 221, horizontal plate; 222, vertical plate; 223, reinforcing rib;

[0033] 3, pushing assembly; 31, screw rod; 32, booster rod. DETAILED DESCRIPTION

[0034] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0035] The self-propelled trolley walking wheel auxiliary device provided by the embodiments of the present application can solve the problem that the self-propelled trolley cannot be quickly removed from the circulating assembly line after the walking wheel fails, and the trolley is easily stranded on site, causing a major shutdown.

[0036] Referring to Figures 1 to 3 The self-propelled trolley walking wheel auxiliary device provided by the embodiments of the present application can solve the problem that the self-propelled trolley cannot be quickly removed from the circulating assembly line after the walking wheel fails, and the trolley is easily stranded on site, causing a major shutdown.

[0037] The sliding assembly 1 includes a support frame 11 and a roller 12 rotatably connected to the support frame 11, and one end of the support frame 11 is provided with a lifting block 13 extending in the radial direction of the roller 12 and used for lifting the walking wheel box body;

[0038] The holding assembly 2 is rotatably connected to the support frame 11 and used for fixing the walking wheel box body;

[0039] The pushing assembly 3 is abutted on the holding assembly 2 and drives the support frame 11 to rotate around the roller 12 so that the support frame 11 drives the lifting block 13 to lift the walking wheel box body.

[0040] The self-propelled trolley walking wheel auxiliary device provided by the embodiments of the present application can solve the problem that the self-propelled trolley cannot be quickly removed from the circulating assembly line after the walking wheel fails, and the trolley is easily stranded on site, causing a major shutdown.

[0041] In the implementation, after confirming the failure of the walking wheel of the self-propelled trolley, first, the corner of the walking wheel box corresponding to the failed walking wheel is lifted by the jack 13, then the holding assembly 2 is fixed on the walking wheel box, and finally the pushing assembly 3 is pushed against the holding assembly 2, and the support frame 11 is pushed by the pushing assembly 3. The support frame 11 rotates around the roller 12, the walking wheel box is lifted by the roller 12 as a fulcrum, and the corner of the walking wheel box on the walking track is lifted and kept, so that the auxiliary device can bear the load of the failure position, the roller 12 replaces the failed walking wheel, and the failed trolley walks on the track and exits the assembly line, thereby avoiding the failure of the self-propelled trolley in the field, causing a major shutdown, and at the same time, the failed trolley can be guided to the maintenance position, facilitating maintenance personnel to maintain, avoiding high-altitude operation in the field, and improving the safety of operation.

[0042] It should be noted that the self-propelled trolley is a prior art, and the walking wheels of the self-propelled trolley are divided into three groups, two of which are force groups, and the remaining one is a driving group. In the full load state, each group of walking wheels bears one ton of weight, and in the empty load state, each group of walking wheels bears half a ton of weight. Therefore, after the walking wheel fails, the load and the resistance of the track increase, so that the self-propelled trolley cannot move by itself or it is difficult to push the trolley by external force.

[0043] Specifically, when the driving motor shaft of the driving group breaks, the walking wheel driven by the driving motor fails to rotate, and the walking wheel box of the driving group without support will sink and rest on the track. At this time, a crowbar or other tool is needed to lift a corner of the walking wheel box, and the jack 13 is inserted into and lifts a corner of the walking wheel box corresponding to the failed walking wheel. After the roller 12 replaces the failed walking wheel of the driving group to support, the failed trolley can be moved to the maintenance position by manual pushing or pulling.

[0044] Specifically, when the bearing on the walking wheel of the force group breaks, the walking wheel also fails to rotate, so that the walking wheel cannot rotate and walk on the track. In this case, the walking wheel box will not completely sink to the walking track under the support of the walking wheel, and there is a gap between the walking wheel box and the walking track. Therefore, the jack 13 is inserted into the gap and lifts a corner of the walking wheel box corresponding to the failed walking wheel. After the roller 12 replaces the failed walking wheel of the driving group to support, the failed trolley can be moved to the maintenance position by using the unfailed driving group as power.

[0045] It should be noted that the roller 12 of the self-propelled trolley walking wheel auxiliary device of the embodiment of the application replaces the failed walking wheel and supports other unfailed walking wheels at the same time, so that the self-propelled trolley walking wheel auxiliary device can keep the walking wheel box in the lifted state by using a single roller 12.

[0046] It should be noted that the roller 12 of the self-propelled trolley walking wheel auxiliary device in the embodiment of the present application replaces the faulty walking wheel, and single-wheel control is adopted, so that the offset amount of the faulty walking wheel when turning on the walking track is small. Specifically, the distance between the roller 12 and the faulty walking wheel can be ensured by controlling the radius of the roller 12, so that the offset amount of the faulty walking wheel when walking on the track meets the safety requirement of the turning radius of the walking track.

[0047] It should be noted that the embodiment of the present application does not make specific requirements and special limitations on the size, shape and material of the pushing assembly 3, and the pushing assembly 3 in the embodiment of the present application is used to push the support frame 11 to rotate around the roller 12, so it can be understood that other pushing assemblies 3 that can achieve such a function can be used in the embodiment of the present application, and those skilled in the art can adaptively adjust the size, shape and material of the pushing assembly 3 according to the use scene and test conditions.

[0048] In some optional embodiments: referring to Figures 1 to 3 The self-propelled trolley walking wheel auxiliary device provided by the embodiment of the present application includes a support frame 11, a pushing assembly 3 connected to the support frame 11, a roller 12 rotatably connected between the two side plates 112, and a clamping assembly 2.

[0049] The support frame 11 of the self-propelled trolley walking wheel auxiliary device in the embodiment of the present application includes two side plates 112 and a connecting block 111 connected between the two side plates 112, the connecting block 111 facilitates the installation of the pushing assembly 3, the connecting block 111 and the side plates 112 can be fixed by welding, and at the same time, mounting holes can be provided in advance on the side plates 112 to facilitate the installation of the roller 12 and the clamping assembly 2 through the rotating shaft, one end of the side plate 112 away from the connecting block 111 is integrally formed with a lifting block 13, the lifting block 13 and the side plate 112 are integrally formed to ensure the connection strength, and the lifting blocks 13 on the two side plates 112 cooperate with each other to improve the stability when lifting the walking wheel box, and it should be noted that reinforcing plates can be welded between the two lifting blocks without affecting the rotation of the clamping assembly 2, and the strength of the lifting block 13 can be increased.

[0050] In specific implementation, the lifting blocks 13 on the two side plates 112 and the roller 12 cooperate with each other to facilitate the standing of the auxiliary device of the present application on the walking track of the self-propelled trolley system, the auxiliary device is pushed along the walking track, the lifting block 13 is inserted between the walking wheel box and the walking track and props up a corner of the walking wheel box, and then single-person operation is facilitated.

[0051] In some optional embodiments: referring to Figures 1 to 3As shown, the self-propelled trolley wheel auxiliary device provided by the embodiment of the present application comprises a clamping assembly 2, the clamping assembly 2 comprises a supporting rod 21, one end of the supporting rod 21 is rotationally connected with the supporting frame 11, and the other end of the supporting rod 21 is a free end and abuts against the pushing assembly 3.

[0052] The clamping assembly 2 of the self-propelled trolley wheel auxiliary device provided by the embodiment of the present application comprises a supporting rod 21, one end of the supporting rod 21 is rotationally connected with the supporting frame 11 through a rotating shaft, and the other end of the supporting rod 21 is a free end and abuts against the pushing assembly 3.

[0053] In specific implementation, after the corner of the walking wheel box corresponding to the faulty walking wheel is lifted by the block 13, the supporting rod 21 is abutted against the corresponding side of the walking wheel box, the supporting rod 21 is fixed on the walking wheel box corresponding to the faulty walking wheel by using fasteners, the free end of the supporting rod 21 is abutted against by the pushing assembly 3, and the supporting frame 11 is pushed by the pushing assembly 3, so that the supporting frame 11 rotates around the roller 12, the block 13 lifts the walking wheel box as a fulcrum, and the corner of the walking wheel box abutting against the walking track is lifted and kept. Specifically, when the block 13 lifts the walking wheel box as a fulcrum, the walking wheel box at the corner falling on the walking track will rotate and lift with the block 13 in a small range.

[0054] It should be noted that, since the supporting rod 21 is rotationally connected with the supporting frame 11, the rotation freedom of the walking wheel box is not limited, after the walking wheel box is separated from the whole and separated from the walking track, the walking wheel box is formed into multi-point support in cooperation with other non-faulty walking wheels, so as to ensure that the walking wheel box corresponding to the faulty walking wheel can be kept in the lifted state, the roller 12 of the self-propelled trolley wheel auxiliary device temporarily replaces the faulty walking wheel, and the faulty trolley is conveniently guided out of the circulating assembly line to a maintenance position.

[0055] The self-propelled trolley wheel auxiliary device provided by the embodiment of the present application has the following advantages:

[0056] 1. The device can be combined with on-site maintenance work, and is more practical.

[0057] 2. The device has low cost, the roller 12 can be an existing sliding plate walking wheel, and the type of spare parts can be reduced.

[0058] 3. The device has light overall weight, and is convenient for single-handed operation by one person.

[0059] 4. The pushing assembly 3 is adjustable, the walking wheel box is compatible within a certain range, and the application range is wider.

[0060] In some optional embodiments, as shown in Figures 1 to 3 As shown, the self-propelled trolley wheel auxiliary device provided by the embodiment of the present application comprises a clamping assembly 2, the clamping assembly 2 comprises a supporting rod 21, one end of the supporting rod 21 is rotationally connected with the supporting frame 11, and the other end of the supporting rod 21 is a free end and abuts against the pushing assembly 3.

[0061] The holding assembly 2 of the self-propelled trolley walking wheel auxiliary device of the embodiment of the present application further comprises a fixing member 22 arranged on the supporting rod 21 and used for fixing the walking wheel box body. Specifically, the fixing member 22 can be a fastener or a clamping device that can temporarily fix the walking wheel box body.

[0062] It should be noted that the embodiment of the present application does not make specific requirements and special limitations on the size, shape and material of the fixing member 22. The function of the fixing member 22 in the embodiment of the present application is to form a fixed connection with the walking wheel box body. Therefore, it can be understood that other fixing members 22 that can achieve such a function can be used in the embodiment of the present application, and the size, shape and material of the fixing member 22 can be adaptively adjusted by the person skilled in the art according to the use scene and test conditions.

[0063] In some optional embodiments, referring to Figures 1 to 3 The embodiment of the present application provides a self-propelled trolley walking wheel auxiliary device, and the fixing member 22 of the self-propelled trolley walking wheel auxiliary device comprises a horizontal plate 221 fixedly connected with the supporting rod 21 and extending along the length direction of the walking wheel box body, and a vertical plate 222 fixedly connected with the horizontal plate 221 and abutting against the walking wheel box body.

[0064] The fixing member 22 of the self-propelled trolley walking wheel auxiliary device of the embodiment of the present application comprises a horizontal plate 221 fixedly connected with the supporting rod 21 and extending along the length direction of the walking wheel box body, and a vertical plate 222 fixedly connected with the horizontal plate 221 and abutting against the walking wheel box body. The vertical plate 222 abuts against the side of the walking wheel box body away from the supporting rod 21, so as to avoid the walking wheel box body from being separated from the lifting block 13. Meanwhile, the vertical plate 222 can transmit the pulling force during the movement of the walking wheel box body after the lifting block 13 lifts the walking wheel box body, so as to ensure that the roller 12 having an indirect connection relationship with the vertical plate 222 moves together with the faulty walking wheel box body.

[0065] In the implementation, after confirming the walking wheel fault of the self-propelled trolley, the following steps can be adopted:

[0066] Step one, rotate the supporting rod 21 to the limit position, so that the supporting rod 21 contacts the roller 12;

[0067] Step two, insert the lifting block 13 into the gap formed by the faulty walking wheel box body and the track, so as to lift a corner of the faulty walking wheel box body by the lifting block 13;

[0068] Step three, rotate the supporting rod 21, so that the horizontal plate 221 and the vertical plate 222 connected with the supporting rod 221 are overlapped on the faulty walking wheel box body;

[0069] Step four, abut the holding assembly 2 against the pushing assembly 3 by the pushing assembly 3, and push the supporting frame 11 by the pushing assembly 3, so that the faulty walking wheel box body is separated from the walking track together with the lifting block 13.

[0070] It should be noted that the self-propelled trolley walking wheel auxiliary device utilizes the lever principle, and the framework formed by the support rod 21, the horizontal plate 221, the vertical plate 222 and the curved block 13 covers the walking wheel box body. By adjusting the pushing assembly 3, the faulty walking wheel box body is lifted, the purpose of replacing the faulty walking wheel is achieved, and the on-site separation demand is completed.

[0071] In some optional embodiments: referring to Figures 1 to 3 As shown in the figure, the self-propelled trolley walking wheel auxiliary device provided by the embodiment of the application is provided with a reinforcing rib 223 between the horizontal plate 221 and the support rod 21.

[0072] The reinforcing rib 223 is arranged between the horizontal plate 221 and the support rod 21 of the self-propelled trolley walking wheel auxiliary device, which can increase the connection strength between the horizontal plate 221 and the support rod 21, and ensure that the horizontal plate 221 and the support rod 21 can bear greater tension.

[0073] Preferably, the horizontal plate 221 and the vertical plate 222 can be made of an integrally formed steel plate, and the strength is increased by welding the reinforcing rib 223.

[0074] It should be noted that the length of the horizontal plate 221 can be slightly longer than the length of the walking wheel box body in actual design, so that the horizontal plate 221 can rotate with the support rod 21 and the vertical plate 222 can rotate smoothly to the side of the walking wheel box body away from the support rod 21.

[0075] In some optional embodiments: referring to Figures 1 to 3 As shown in the figure, the self-propelled trolley walking wheel auxiliary device provided by the embodiment of the application is provided with a reinforcing rib 223 between the horizontal plate 221 and the support rod 21.

[0076] The pushing assembly 3 of the self-propelled trolley walking wheel auxiliary device includes a screw rod 31 screwed on the support frame 11, and one end of the screw rod 31 abuts against the free end of the support rod 21 of the clamping assembly 2. By rotating the screw rod 31, the support frame 11 can be rotated around the roller 12.

[0077] In the embodiment, after confirming the failure of the trolley wheel, the relevant personnel move the auxiliary device to the track on the side of the walking wheel box of the failed trolley wheel by using the ladder on the track platform, rotate the support rod 21 to the limit position to contact the roller 12, lift one corner of the walking wheel box by using the crowbar, insert the lifting block 13 into the gap formed between the failed walking wheel box and the track, pad the one corner of the failed walking wheel box by the lifting block 13, rotate the support rod 21 again, so that the horizontal plate 221 and the vertical plate 222 connected with the support rod 21 are lapped on the failed walking wheel box, and finally rotate the lead screw 31 to push the support frame 11 by the lead screw 31, so that the failed walking wheel box is separated from the walking track with the lifting block 13.

[0078] It should be noted that the self-propelled trolley wheel auxiliary device has the advantages of simple structure, light weight, and easy welding and manufacturing of the device itself.

[0079] In some optional embodiments, referring to Figures 1 to 3 The self-propelled trolley wheel auxiliary device further comprises a pushing assembly 3, and the pushing assembly 3 comprises a lead screw 31 and a support frame 11.

[0080] The pushing assembly 3 of the self-propelled trolley wheel auxiliary device further comprises a booster rod 32, and one end of the lead screw 31 away from the clamping assembly 2 is provided with a through hole for the booster rod 32 to pass through.

[0081] In some optional embodiments, referring to Figures 1 to 3 The self-propelled trolley wheel auxiliary device further comprises a pushing assembly 3, and the pushing assembly 3 comprises a lead screw 31 and a support frame 11.

[0082] The pushing assembly 3 of the self-propelled trolley wheel auxiliary device further comprises a booster rod 32, and one end of the lead screw 31 away from the clamping assembly 2 is provided with a through hole for the booster rod 32 to pass through.

[0083] In the embodiment, the pad can be fixed to the free end of the support rod 21 of the clamping assembly 2 or fixed to one end of the lead screw 31 of the pushing assembly 3. When one end of the lead screw 31 abuts on the free end of the support rod 21 of the clamping assembly 2 through the pad, the pad can disperse the pressure of the end of the lead screw 31, so as to avoid the abrasion of the end of the lead screw 31 caused by the pressure concentration.

[0084] In some alternative embodiments, referring to Figures 1 to 3 Figures 1 to 3 As shown in the drawings, the self-propelled trolley wheel auxiliary device provided by the embodiments of the present application comprises a pushing assembly 3 fixed on the embracing assembly 2 or the support frame 11.

[0085] The pushing assembly 3 of the self-propelled trolley wheel auxiliary device provided by the embodiments of the present application is a jack fixed on the embracing assembly 2 or the support frame 11. In specific implementation, the pushing assembly 3 can be a small jack, and the base of the jack is fixed on the free end of the supporting rod 21 of the embracing assembly 2 or the connecting block 111 of the support frame 11.

[0086] In the description of the present application, it should be noted that the orientation or position relationship indicated by the terms "upper", "lower", etc. is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral connection; it can be mechanical connection, or electrical connection; it can be direct connection, or indirect connection through an intermediate medium, or internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0087] It should be noted that in the present application, relational terms such as "first" and "second" and the like are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the terms "include", "contain" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or device. Without more limitations, the element defined by the sentence "including a…" does not exclude the presence of other identical elements in the process, method, article or device including the element.

[0088] The foregoing detailed description of the application has been presented for purposes of illustration and description. Various modifications and changes can be made to these embodiments without departing from the spirit and scope of the application. It is intended that the scope of the application should not be limited by the particular representative embodiments described above.

Claims

1. A self-propelled vehicle wheel assist device, characterized in that, include: The sliding assembly (1) includes a support frame (11) and a roller (12) rotatably connected to the support frame (11). One end of the support frame (11) is provided with a pry bar (13) extending radially toward the roller (12) and used to support the wheel box. The clamping assembly (2) is rotatably connected to the support frame (11) and is used to fix the wheel box; The push assembly (3) abuts against the clamping assembly (2) and drives the support frame (11) to rotate around the roller (12) so that the support frame (11) drives the rocker block (13) to lift the wheel box; The clamping assembly (2) includes a support rod (21) rotatably connected to the support frame (11), a horizontal plate (221) fixedly connected to the support rod (21) and extending along the length direction of the wheel box, and a vertical plate (222) fixedly connected to the horizontal plate (221) and used to abut against the side of the wheel box away from the support rod (21). The jacking assembly (3) includes a lead screw (31) threaded onto the support frame (11), one end of which abuts against the support rod (21).

2. The self-propelled vehicle wheel assist device according to claim 1, characterized in that: The support frame (11) includes a connecting block (111) for connecting the push assembly (3) and two side plates (112) respectively fixed at both ends of the connecting block (111). The roller (12) is rotatably connected between the two side plates (112). The end of the side plate (112) away from the connecting block (111) is integrally formed with the lifting block (13).

3. The self-propelled vehicle wheel assist device according to claim 1, characterized in that: A reinforcing rib (223) is provided between the cross plate (221) and the support rod (21).

4. The self-propelled trolley wheel assist device according to claim 1, characterized in that: The push assembly (3) also includes an assist rod (32), and the end of the lead screw (31) away from the clamping assembly (2) is provided with a through hole for the assist rod (32) to pass through.

5. The self-propelled vehicle wheel assist device according to claim 1, characterized in that: The push assembly (3) also includes a pad, and one end of the lead screw (31) abuts against the clamping assembly (2) through the pad.

6. The self-propelled vehicle wheel assist device according to claim 1, characterized in that: The jacking assembly (3) is a jack fixed on the clamping assembly (2) or the support frame (11).

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