Carrier driving assembly

Abstract

The invention relates to a carrier driving assembly which comprises a supporting frame, a driving wheel and an auxiliary wheel are arranged on the supporting frame, a positioning rod is arranged at the position, corresponding to the driving wheel and the auxiliary wheel, above the supporting frame, the supporting frame is connected with a buffering structure through the positioning rod, the buffering structure comprises a box body, and a lower partition plate and an upper partition plate are arranged in the box body. The upper end of the positioning rod penetrates through the box body to be connected with the lower partition plate, an elastic piece is arranged between the positioning rod and the box body, the lower end of the positioning rod is movably connected with the supporting frame, the upper partition plate is connected with the frame, a plurality of buffering pieces are evenly arranged between the lower partition plate and the upper partition plate, the buffering pieces are cylindrical, and the axial direction of the buffering pieces is parallel to the lower partition plate or the upper partition plate. The side faces of the adjacent buffering pieces are tangent, and the buffering pieces are connected with the lower partition plate or the upper partition plate. The positioning rod is arranged on the supporting frame, the positioning rod can convert concentrated vibration on the driving wheel and the auxiliary wheel into smooth surface motion through the buffering structure and then conduct buffering, and the buffering effect is good.

Description

Technical Field

[0001] The invention relates to the field of a transport vehicle drive assembly, and in particular to a transport vehicle drive assembly. Background Art

[0002] A transport truck is a logistics handling equipment used to transport goods. An electric transport truck is a transport truck that uses a battery as a power source, an electric motor as a motive force, and drives the vehicle through a gear transmission. The lifting of the electric transport truck's fork relies on a DC motor and hydraulic transmission. It has the characteristics of labor saving, high efficiency, smooth cargo movement, simple operation, safety and reliability, low noise, and no pollution.

[0003] At present, the main driving assembly of an electric transporter generally includes a support frame and a driving wheel. In order to ensure the stability of the driving wheel, auxiliary wheels are usually arranged on both sides of the driving wheel. Most of the driving wheels in the prior art are rigidly connected to the support frame, and buffer springs are arranged on the support frame or the auxiliary wheels for shock absorption and buffering. For example, a Chinese patent with publication number CN109733141A and publication date May 10, 2019 discloses an auxiliary wheel assembly, including an upper bracket, a lower bracket rotatably connected to the upper bracket, and a spring that contacts and abuts the lower bracket and is used to provide elastic force, and also includes a top rod component connected to the upper bracket and used to contact and abut against the spring to adjust the elastic force of the spring, and a loosening prevention component that is connected to the top rod component and is tightly fitted with the outer end surface of the upper bracket to prevent the top rod component from loosening. The application designs an elastically adjustable auxiliary wheel, which can accurately adjust the load borne by the auxiliary wheel according to needs, reduce the impact of manufacturing errors in the production and assembly process, and adapt to more vehicle models, but the application still cannot perform shock absorption and buffering on the driving wheel.

[0004] For example, a Chinese patent with authorization announcement number CN217264640U and publication date August 23, 2022 discloses a forklift drive wheel with a buffer mechanism, including an inner gear ring, an inner wall of the inner gear ring is provided with a support frame, and a plurality of positioning holes are opened on the surface of the support frame, and a magnetic ring is slidably connected to the inner wall of the positioning hole, and the magnetic blocks in the corresponding two positioning holes are respectively clamped with the two ends of the corresponding driven gear through bearings, and magnetic blocks are provided on the inner walls of the positioning holes. The driven gear is meshed with the inner wall of the same inner gear ring, and one end of the driven gear on the corresponding side is fixedly connected to the transmission gear, and one end of the corresponding driven gear is movably connected to the second supporting gear through a bearing, and the second supporting gear and the transmission gear are meshed with the same driving gear, and the surface of the driving tooth is fixedly connected to the driving shaft, and a tooth groove is opened on the surface of the inner gear ring, and a plurality of mounting gears are meshed on the inner wall of the tooth groove, and the two ends of the plurality of mounting gears are clamped on the opposite surfaces of the two mounting rings through bearings.

[0005] This application is able to compress the spring through the bottom plate so that the spring cooperates with the top plate installed at the bottom of the vehicle body, so that the spring has further shock-absorbing and energy-absorbing effects on the support frame, so that small and large vibrations can be eliminated by the repulsive force of the magnetic block and the magnetic ring combined with the elasticity of the spring, thereby achieving a buffering and shock-absorbing effect on the drive wheel. However, the inventor believes that the structure of this application is relatively complex and contains magnetic components, which is prone to malfunction.

[0006] In view of the above-mentioned related technologies, the inventor believes that a transport vehicle drive assembly should be designed that can simultaneously perform shock absorption and buffering on the drive wheels and the auxiliary wheels. Summary of the invention

[0007] The invention provides a transport vehicle driving assembly which can simultaneously perform shock absorption and buffering on a driving wheel and an auxiliary wheel.

[0008] The present invention provides a transport vehicle drive assembly adopting the following technical solution:

[0009] A transport vehicle drive assembly includes a support frame, on which a driving wheel and an auxiliary wheel are arranged, a positioning rod is arranged above the support frame at a position corresponding to the driving wheel and the auxiliary wheel, and a buffer structure is connected through the positioning rod, the buffer structure includes a box body, a lower partition and an upper partition are arranged in the box body, the upper end of the positioning rod passes through the box body and is connected to the lower partition, an elastic member is arranged between the positioning rod and the box body, the lower end of the positioning rod is movably connected to the support frame, the upper partition is connected to the frame, a plurality of buffer members are evenly arranged between the lower partition and the upper partition, the buffer members are cylindrical, the axial direction of the buffer members is arranged parallel to the lower partition or the upper partition, the adjacent buffer member side surfaces are tangent, and the buffer members are connected to the lower partition or the upper partition.

[0010] Preferably, the support frame includes a bracket body, which is strip-shaped, a fixing ring is provided in the middle of the bracket body and is connected to the driving wheel through the fixing ring, a fixing bolt is provided on the side of the fixing ring and the fixing bolt passes through the upper end of the driving wheel, a handle mounting portion is provided on the driving wheel, both ends of the bracket body are bent downward and are connected to the auxiliary wheel, a connecting arm is provided at the rear of the bent section and is connected to the frame through the connecting arm, a U-shaped guard bar is provided at the front of the bent section, and the front end of the U-shaped guard bar is arranged beyond the driving wheel.

[0011] Preferably, the connecting arm and the U-shaped blocking rod are both arranged to be inclined downward, the connecting arm is movably connected to the bracket body, and the U-shaped blocking rod is integrally arranged with the bracket body.

[0012] Preferably, a threaded portion is provided at the lower end of the positioning rod, and threaded holes matching the positioning rod are provided on the support frame and the driving wheel.

[0013] Preferably, the box body is rectangular, a hole is provided at the bottom of the box body and the positioning rod is provided in the hole, the elastic member is a compression spring, the lower partition and the upper partition are both rectangular plates, the width of the lower partition and the upper partition is equal to the width of the inner side of the box body, the length of the lower partition and the upper partition is smaller than the width of the inner side of the box body, and the length of the buffer member is equal to the width of the inner side of the box body.

[0014] Preferably, the buffer member is provided with at least two layers.

[0015] Preferably, a baffle is provided downwardly at the lower edge of the box body, the baffle is a frame-shaped structure and the shape of the lower end of the baffle matches the shape of the upper end of the support frame, a spacing is provided between the baffle and the support frame, a limiting column is provided on the support frame and the limiting column can be connected to the inner side of the baffle, and a threading hole is provided on the baffle corresponding to the position of the driving wheel.

[0016] Preferably, grooves are provided on both sides of the upper end of the box body and locking parts are provided in the grooves. The locking part is an "L"-shaped plate. The vertical section of the locking part is movably connected to the box body. A compression spring is provided on the horizontal section of the locking part, and the compression spring is connected to the upper partition.

[0017] In summary, the present invention includes at least one of the following beneficial technical effects:

[0018] 1. The present invention arranges positioning rods at positions corresponding to the driving wheels and the auxiliary wheels on the support frame, and at the same time connects a buffer structure through the positioning rods, so that the support frame can be buffered at multiple points, and the vibrations on the driving wheels and the auxiliary wheels can be buffered to ensure stable driving; the buffer structure includes a box body, and an upper partition and a lower partition are arranged in the box body, and a cylindrical buffer part is arranged therebetween, so that the concentrated vibrations on the driving wheels and the auxiliary wheels are converted into a smooth surface tilting motion and then buffered, with good buffering effect, ensuring stable frame connection.

[0019] 2. By arranging a fixing ring on the bracket body, it is convenient to install the driving wheel; by bending downward at both ends of the bracket body to connect the auxiliary wheels, and at the same time arranging a connecting arm and a U-shaped guard bar at the rear and front of the bending section respectively, the connecting arm can ensure a stable connection with the frame, and the end of the U-shaped guard bar exceeds the driving wheel, which has an anti-collision protection effect on the driving wheel; at the same time, the connecting arm and the U-shaped guard bar are both arranged to be inclined downward, and the connecting arm is movably connected to the bracket body to ensure that the frame has a certain flexibility, and the U-shaped guard bar is arranged as a whole with the bracket theme, which is convenient for processing and ensures strength; by arranging threads on the positioning rod and connecting it with the support frame and the driving wheel through the threads, it is convenient for installation and disassembly while ensuring a stable connection.

[0020] 3. By setting a rectangular box body and setting the sizes of the upper partition, lower partition and buffer member at the same time, it is ensured that the upper partition, lower partition and buffer member can rotate or move in the box body, thereby transmitting and buffering the vibration transmitted from the positioning rod; by setting at least two layers of buffer members, the vibration can be transmitted by means of the rotation of the buffer member, and the buffering is stable and the effect is good.

[0021] 4. A frame-shaped baffle is provided on the lower edge of the box body, and a limit column connected to the inner side of the baffle is provided on the support frame to ensure the vertical position of the box body. A threading hole is provided on the baffle plate to facilitate the connection of the drive wheel.

[0022] 5. By arranging "L"-shaped locking parts on both sides of the upper end of the box body, when the locking parts are not installed, the positioning rod, the lower partition, the buffer and the upper partition can be placed in sequence through the upper end of the box body, which is convenient for installation. At the same time, a compression spring is arranged on the locking part. After the locking part is installed, it can have a buffering and shock-absorbing effect on the upper partition, and finally it is connected to the frame through the upper partition, and the overall stability is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a three-dimensional diagram of the driving assembly of the transport vehicle in a preferred embodiment of the present invention.

[0024] Figure 2 It is a front view of the transport vehicle drive assembly in a preferred embodiment of the present invention.

[0025] Figure 3 It is a three-dimensional diagram of a support frame in a preferred embodiment of the present invention.

[0026] Figure 4 It is a front view of the support frame in a preferred embodiment of the present invention.

[0027] Figure 5 It is a structural schematic diagram of the buffer structure in a preferred embodiment of the present invention.

[0028] Figure 6 It is a cross-sectional view of the transport vehicle drive assembly in a preferred embodiment of the present invention.

[0029] Explanation of the reference numerals in the accompanying drawings: 1. Support frame; 101. Support body; 102. Fixing ring; 103. Connecting arm; 104. U-shaped gear lever; 105. Limiting column; 2. Driving wheel; 3. Auxiliary wheel; 4. Positioning rod; 5. Buffer structure; 501. Box body; 502. Lower partition; 503. Upper partition; 504. Buffer member; 505. Baffle; 505a. Threading hole; 506. Locking part; 6. Frame. DETAILED DESCRIPTION

[0030] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0031] An embodiment of the present invention discloses a transport vehicle drive assembly.

[0032] Reference Figures 1 to 6 A transport vehicle drive assembly includes a support frame 1, a driving wheel 2 and an auxiliary wheel 3 are arranged on the support frame 1, a positioning rod 4 is arranged at a position corresponding to the driving wheel 2 and the auxiliary wheel 3 above the support frame 1, and a buffer structure 5 is connected through the positioning rod 4, the buffer structure 5 includes a box body 501, a lower partition 502 and an upper partition 503 are arranged in the box body 501, the upper end of the positioning rod 4 passes through the box body 501 and is connected to the lower partition 502, an elastic member is arranged between the positioning rod 4 and the box body 501, and the lower end of the positioning rod 4 is movably connected to the support frame 1. Specifically, in this embodiment, the lower end of the positioning rod 4 A threaded portion is provided, and threaded holes matching the positioning rod 4 are provided on the support frame 1 and the driving wheel 2. The end of the positioning rod 4 connected to the lower partition 502 is spherical or arc-shaped; the upper partition 503 is connected to the frame 6, and a plurality of buffers 504 are evenly arranged between the lower partition 502 and the upper partition 503. The buffers 504 are cylindrical, and the axial direction of the buffers 504 is arranged parallel to the lower partition 502 or the upper partition 503. The buffers 504 are arranged in at least two layers, and the sides of adjacent buffers 504 are tangent, and the buffers 504 are connected to the lower partition 502 or the upper partition 503.

[0033] During use, when the driving wheel 2 or the auxiliary wheel 3 vibrates, the corresponding positioning rod 4 on the support frame 1 transmits the vibration to the lower partition 502, and the lower partition 502 moves. A plurality of tangent buffers 504 are arranged between the lower partition 502 and the upper partition 503. The movement of the lower partition 502 can be transmitted to the upper partition 503 through the buffer 504. During the transmission process, the relatively concentrated vibration on the driving wheel 2 or the auxiliary wheel 3 is converted into a smooth upper partition tilting movement and then buffered. After buffering, the frame is connected to reduce vibration, and the buffering effect is good, thereby ensuring the stable connection of the frame 6.

[0034] Reference Figures 1 to 4 The support frame 1 includes a support body 101, which is strip-shaped. A fixing ring 102 is provided in the middle of the support body 101 and is connected to the driving wheel 2 through the fixing ring 102. A fixing bolt is provided on the side of the fixing ring 102 and the fixing bolt passes through the upper end of the driving wheel 2. A handle mounting portion is provided on the driving wheel 2. Both ends of the support body 101 are bent downward and connected to the auxiliary wheel 3. A connecting arm 103 is provided at the rear of the bent section and is connected to the frame 6 through the connecting arm 103. A U-shaped blocking rod 104 is provided at the front of the bent section. The front end of the U-shaped blocking rod 104 exceeds the driving wheel 2. Specifically, the connecting arm 103 and the U-shaped blocking rod 104 are both inclined downward. The connecting arm 103 is movably connected to the support body 101 to ensure that the connection with the frame 6 has a certain flexibility; the U-shaped blocking rod 104 is integrally arranged with the support body 101, which is convenient for processing while ensuring overall strength.

[0035] Reference Figures 1 to 6 The box body 501 is rectangular, a hole is provided at the bottom of the box body 501 and a positioning rod 4 is provided in the hole, the elastic member is a compression spring, the lower partition 502 and the upper partition 503 are both rectangular plates, the width of the lower partition 502 and the upper partition 503 are equal to the width of the inner side of the box body 501, the length of the lower partition 502 and the upper partition 503 are less than the width of the inner side of the box body 501, the length of the buffer 504 is equal to the width of the inner side of the box body 501, and by setting the sizes of the upper partition 502, the lower partition 503 and the buffer 504, it is ensured that the upper partition 502, the lower partition 503 and the buffer 504 can be rotated or moved in the box body to ensure the vibration transmission effect.

[0036] Reference Figure 5 and Figure 6 , grooves are provided on both sides of the upper end of the box body 501, and locking parts 506 are provided in the grooves. The locking parts 506 are "L"-shaped plates. The vertical section of the locking part 506 is movably connected to the box body 501. A compression spring is provided on the horizontal section of the locking part 506. The compression spring is connected to the upper partition 503. When the locking part 506 is not installed, the positioning rod 4, the lower partition 502, the buffer 504 and the upper partition 503 can be placed in sequence through the upper end of the box body 501, which is convenient for installation. At the same time, a compression spring is provided on the locking part 506, which can buffer the upper partition 503 after the locking part 506 is installed. The shock absorbing effect is achieved to ensure the stability of the upper partition 503 and the frame 6; a baffle 505 is arranged downward on the lower edge of the box body 501, the baffle 505 is a frame-shaped structure and the shape of the lower end of the baffle 505 matches the shape of the upper end of the support frame 1, a spacing is arranged between the baffle 505 and the support frame 1, a limiting column 105 is arranged on the support frame 1 and the limiting column 105 can be connected with the inner side of the baffle 505, the limiting column 105 can ensure the position of the box body 501 in the vertical direction, and a threading hole 505a is arranged on the baffle 505 corresponding to the position of the driving wheel 2, so as to facilitate the driving wheel 2 to connect to the power supply.

[0037] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A transport vehicle drive assembly, characterized in that: The invention comprises a support frame (1), wherein a driving wheel (2) and an auxiliary wheel (3) are arranged on the support frame (1), a positioning rod (4) is arranged above the support frame (1) at a position corresponding to the driving wheel (2) and the auxiliary wheel (3), and a buffer structure (5) is connected to the positioning rod (4), wherein the buffer structure (5) comprises a box body (501), wherein a lower partition plate (502) and an upper partition plate (503) are arranged inside the box body (501), the upper end of the positioning rod (4) passes through the box body (501) and is connected to the lower partition plate (502), and the positioning rod (4) is connected to the box body (501), an elastic member is arranged between the lower end of the positioning rod (4) and the support frame (1), the upper partition (503) is connected to the vehicle frame (6), and a plurality of buffer members (504) are evenly arranged between the lower partition (502) and the upper partition (503), wherein the buffer members (504) are cylindrical, and the axial direction of the buffer members (504) is arranged parallel to the lower partition (502) or the upper partition (503), the side surfaces of adjacent buffer members (504) are tangent, and the buffer members (504) are connected to the lower partition (502) or the upper partition (503).

2. A transport vehicle drive assembly according to claim 1, characterized in that: The support frame (1) comprises a support body (101), the support body (101) is strip-shaped, a fixing ring (102) is arranged in the middle of the support body (101) and is connected to the driving wheel (2) through the fixing ring (102), a fixing bolt is arranged on the side of the fixing ring (102) and the fixing bolt passes through the upper end of the driving wheel (2), a handle mounting portion is arranged on the driving wheel (2), both ends of the support body (101) are bent downward and are connected to the auxiliary wheel (3), a connecting arm (103) is arranged at the rear of the bent section and is connected to the frame (6) through the connecting arm (103), a U-shaped stopper (104) is arranged at the front of the bent section, and the front end of the U-shaped stopper (104) is arranged beyond the driving wheel (2).

3. A transport vehicle drive assembly according to claim 2, characterized in that: The connecting arm (103) and the U-shaped blocking rod (104) are both arranged to tilt downward, the connecting arm (103) is movably connected to the bracket body (101), and the U-shaped blocking rod (104) is integrally arranged with the bracket body (101).

4. The transport vehicle drive assembly according to claim 1, characterized in that: The lower end of the positioning rod (4) is provided with a threaded portion, and the support frame (1) and the driving wheel (2) are provided with threaded holes matching the positioning rod (4).

5. The transport vehicle drive assembly according to claim 1, characterized in that: The box body (501) is rectangular, a hole is provided at the bottom of the box body (501) and the positioning rod (4) is provided in the hole, the elastic member is a compression spring, the lower partition (502) and the upper partition (503) are both rectangular plates, the width of the lower partition (502) and the upper partition (503) are equal to the width of the inner side of the box body (501), the length of the lower partition (502) and the upper partition (503) are less than the width of the inner side of the box body (501), and the length of the buffer member (504) is equal to the width of the inner side of the box body (501).

6. The transport vehicle drive assembly according to claim 1, characterized in that: The buffer member (504) is provided with at least two layers.

7. The transport vehicle drive assembly according to claim 1, characterized in that: A baffle (505) is arranged downwardly at the lower edge of the box body (501); the baffle (505) is a frame-shaped structure and the shape of the lower end of the baffle (505) matches the shape of the upper end of the support frame (1); a spacing is arranged between the baffle (505) and the support frame (1); a limiting column (105) is arranged on the support frame (1) and the limiting column (105) can be connected to the inner side of the baffle (505); and a threading hole (505a) is arranged on the baffle (505) at a position corresponding to the driving wheel (2).

8. The transport vehicle drive assembly according to claim 1, characterized in that: Grooves are arranged on both sides of the upper end of the box body (501), and locking parts (506) are arranged in the grooves. The locking part (506) is an "L"-shaped plate. The vertical section of the locking part (506) is movably connected to the box body (501). A compression spring is arranged on the horizontal section of the locking part (506), and the compression spring is connected to the upper partition plate (503).

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