Frame with damping structure, sweeping vehicle and feeding vehicle

By designing leaf spring assemblies on the vehicle frame, the vibration problem of sweepers and material handling vehicles during operation is solved by utilizing the frictional resistance of the leaf springs to dampen vibrations, thereby improving vehicle stability.

CN223821390UActive Publication Date: 2026-01-23CHANGZHOU INST OF DALIAN UNIV OF TECH
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Patent Information

Application Number
CN202423237609.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-26
Publication Date
2026-01-23
Estimated Expiration
2034-12-26

AI Technical Summary

Technical Problem

The sweeper and feeder vehicles experience significant vibrations due to uneven ground during operation, affecting the overall stability of the vehicle.

Method used

The frame with a shock absorption structure includes a leaf spring assembly, which consists of a first leaf spring, a second leaf spring, and a top leaf spring. The transmission wheel is placed in the cavity and connected to the chassis support. The leaf spring generates frictional resistance under load to dampen vibration.

Benefits of technology

The design of the leaf spring assembly reduces chassis vibration and improves vehicle stability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a vehicle frame with a damping structure, a motor sweeper and a feeding trolley, the vehicle frame with the damping structure is provided with a chassis frame, the damping structure comprises a plate spring assembly, the plate spring assembly comprises a first plate spring piece located at the bottom and an arc-shaped second plate spring piece located on the upper portion, and the two ends of the second plate spring piece are wound to form a cavity; a cavity is formed in the base plate frame, a transfer wheel is arranged in the cavity, the two ends of the transfer wheel are connected with a base plate support, the base plate support is detachably installed on the base plate frame in a fastened mode, and the plate spring assembly further comprises a top plate spring piece which is located above the second plate spring piece and formed by multiple sections of arcs. When the plate spring assembly deforms under the action of a load, the plates slide relatively to generate friction, certain resistance is generated, and vibration borne by the chassis frame is attenuated.
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Description

Technical Field

[0001] This utility model relates to the field of mobile vehicle technology, and in particular to a vehicle frame with a shock-absorbing structure, as well as a sweeper and a material delivery vehicle. Background Technology

[0002] Sweepers used for cleaning troughs or ground, or feeders used for feeding troughs, may experience significant vibrations when encountering uneven ground, affecting the overall stability of the vehicle. Therefore, it is necessary to add shock-absorbing structures to improve the stability of the sweeper or feeder during operation. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a vehicle frame with a shock absorption structure, as well as a sweeper and a material delivery vehicle, to reduce the vibration of the chassis frame in the vehicle frame.

[0004] The technical solution adopted by this utility model to solve the above-mentioned technical problems is: a vehicle frame with a shock absorption structure, having a chassis frame, the shock absorption structure including a leaf spring assembly, the leaf spring assembly including a first leaf spring at the bottom and an arc-shaped second leaf spring at the top, the two ends of the second leaf spring are wound to form a cavity, a transmission wheel is inserted into the cavity, the two ends of the transmission wheel are connected to the chassis support, the chassis support is detachably and securely installed on the chassis frame, the leaf spring assembly also includes a top leaf spring formed by multiple arc segments above the second leaf spring.

[0005] Preferably, a certain gap is formed between the two ends of the top plate spring and the second plate spring, so that the two ends of the top plate spring are suspended.

[0006] Preferably, there is one or more leaf springs between the top leaf spring and the second leaf spring, and the two ends of the one or more leaf springs added between the top leaf spring and the second leaf spring are progressively recessed from top to bottom.

[0007] Preferably, the ends of the multiple leaf springs added between the first leaf spring and the second leaf spring are progressively recessed from top to bottom.

[0008] Preferably, the transmission wheel is connected to the chassis support at both ends in the following manner: it includes a U-shaped connecting piece, and the U-shaped connecting piece has side connecting pieces on both sides. The side connecting pieces on both sides are respectively placed between the two ends of the transmission wheel and the chassis support. The transmission wheel and the side connecting pieces are connected to the corresponding chassis support by detachable fasteners.

[0009] Preferably, the transmission wheel is connected to the chassis support at both ends in the following manner: it includes two independent single-sided connecting plates, the two ends of the transmission wheel are respectively connected to the lower part of the two single-sided connecting plates, and the upper part of the two single-sided connecting plates is connected to the corresponding chassis support through detachable fasteners.

[0010] Preferably, the bottom of the first leaf spring is supported on the surface of the sleeve by a support bracket, the top of the top leaf spring is provided with a cover plate, and the cover plate, leaf spring assembly and support bracket are fastened to the surface of the sleeve by U-shaped detachable fasteners, and the sleeve is fitted on the outer wall of the connecting shaft used to connect the two drive wheels.

[0011] Preferably, the chassis frame includes two transverse beams and a longitudinal beam connecting the two transverse beams, and the two sets of chassis supports corresponding to the two sets of leaf spring assemblies are detachably and securely installed to the two transverse beams.

[0012] A sweeper includes the aforementioned frame and a sweeping component for sweeping materials into a hopper.

[0013] A feeding vehicle includes the aforementioned frame and a feeding component for discharging materials from the feeding bin.

[0014] The beneficial effects of this utility model are: when the leaf spring assembly deforms under load, the leaf springs slide relative to each other and generate friction, which generates a certain resistance and promotes the attenuation of vibration on the chassis frame. Attached Figure Description

[0015] Figure 1 This is a three-dimensional schematic diagram of the leaf spring assembly of the present invention mounted on the chassis frame. Figure 1 ;

[0016] Figure 2 This is a three-dimensional schematic diagram of the leaf spring assembly of the present invention mounted on the chassis frame. Figure 2 ;

[0017] Figure 3 This is a three-dimensional schematic diagram of the leaf spring assembly of the present invention mounted on the connecting shaft;

[0018] Figure 4 This is a schematic diagram showing the connection between the leaf spring assembly and the chassis support of the present invention;

[0019] Figure 5 This is a three-dimensional schematic diagram of the connection between the leaf spring assembly and the sleeve of the present invention;

[0020] Figure 6 This is a front view schematic diagram of the connection between the leaf spring assembly and the sleeve of the present invention;

[0021] The components include: 1. Chassis frame; 101. Transverse beam; 102. Longitudinal beam; 2. Leaf spring assembly; 201. First leaf spring; 202. Second leaf spring; 203. Top leaf spring; 3. Transmission wheel; 4. Chassis support; 501. Z-shaped connecting piece; 502. Single-sided connecting piece; 6. Support bracket; 7. Cover plate; 8. U-shaped detachable fastener; 9. Sleeve; 10. Drive wheel; 11. Connecting shaft. Detailed Implementation

[0022] The present invention will now be described in further detail with reference to the accompanying drawings and preferred embodiments. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0023] like Figures 1-6 As shown, a vehicle frame with a shock-absorbing structure includes a chassis frame 1. The shock-absorbing structure includes a leaf spring assembly 2. The leaf spring assembly 2 includes a first leaf spring 201 at the bottom and an arc-shaped second leaf spring 202 at the top. The two ends of the second leaf spring 202 are wound to form cavities, and a transmission wheel 3 is inserted into the cavity. The two ends of the transmission wheel 3 are connected to a chassis support 4. The chassis support 4 is detachably and securely installed on the chassis frame 1. The leaf spring assembly 2 also includes a top leaf spring 203 formed by multiple arc segments above the second leaf spring 202. When the leaf spring assembly deforms under load, the leaves slide relative to each other, generating friction and producing a certain resistance, which helps to attenuate the vibration experienced by the chassis frame.

[0024] Specifically, one possible implementation is as follows: Figure 5 , Figure 6 As shown, a certain gap is formed between the two ends of the top plate spring 203 and the second plate spring 202, so that the two ends of the top plate spring 203 are suspended. During vibration, the top plate spring passes through the curved steel sheet formed by its multiple arcs, and its ends generate a certain up-and-down sway to disperse the vibration force.

[0025] Specifically, one possible implementation is as follows: Figure 5 , Figure 6 As shown, there is one or more leaf springs between the top leaf spring 203 and the second leaf spring 202, and the ends of the one or more leaf springs added between the top leaf spring 203 and the second leaf spring 202 are progressively recessed from top to bottom. Specifically, in an optional embodiment, the ends of the multiple leaf springs added between the first leaf spring 201 and the second leaf spring 202 are progressively recessed from top to bottom, and different frictional forces are generated from top to bottom by the multiple leaf springs that are progressively recessed from top to bottom.

[0026] Specifically, one possible implementation is as follows: Figure 4 As shown, the connection between the two ends of the transmission wheel 3 and the chassis support 4 includes a U-shaped connecting piece 501. The U-shaped connecting piece 501 has side connecting pieces on both sides, which are respectively positioned between the two ends of the transmission wheel 3 and the chassis support 4. The transmission wheel 3 and the side connecting pieces are connected to the corresponding chassis support 4 via detachable fasteners. The detachable fasteners can be, for example, fasteners consisting of a combination of bolts and nuts.

[0027] Specifically, another alternative implementation is, as follows: Figure 4 As shown, the transmission wheel 3 is connected to the chassis support 4 at both ends in the following manner: it includes two independent single-sided connecting plates 502. The two ends of the transmission wheel 3 are respectively connected to the lower parts of the two single-sided connecting plates 502, and the upper parts of the two single-sided connecting plates 502 are connected to the corresponding chassis support 4 through detachable fasteners. The detachable fasteners can be, for example, fasteners consisting of a combination of bolts and nuts.

[0028] Specifically, another alternative implementation is, as follows: Figures 1-4 As shown, the bottom of the first leaf spring 201 is supported on the surface of the sleeve 9 by the support bracket 6. The top of the top leaf spring 203 is provided with a cover plate 7. The cover plate 7, the leaf spring assembly 2, and the support bracket 6 are fastened to the surface of the sleeve 9 by a U-shaped detachable fastener 8. The sleeve 9 is fitted onto the outer wall of the connecting shaft 11 used to connect the two drive wheels 10. The U-shaped detachable fastener is, for example, a fastener consisting of a U-bolt and a nut. When the drive wheel is vibrated, the vibration force is transmitted through the sleeve to the support bracket and the leaf spring assembly, and then to the transmission wheel. The leaf spring assembly attenuates the vibration, and the transmission wheel 3 comes into contact with the second leaf spring 202, thus receiving less vibration, further reducing the vibration of the chassis frame.

[0029] Specifically, another alternative implementation is, as follows: Figures 1-2 As shown, the chassis frame 1 includes two transverse beams 101 and a longitudinal beam 102 connecting the two transverse beams 101. The two sets of chassis supports 4 corresponding to the two sets of leaf spring assemblies 2 are detachably and securely installed with the two transverse beams 101 respectively.

[0030] A sweeper includes the aforementioned frame and a sweeping component for sweeping materials to a hopper, wherein the frame is provided with a sweeper hopper for storing materials.

[0031] A feeding vehicle includes the aforementioned frame and a feeding component for discharging materials from a feeding bin. The frame is provided with a feeding bin for storing materials.

[0032] The above description is only a specific embodiment of the present utility model. Various examples and illustrations do not constitute a limitation on the substantive content of the present utility model. Those skilled in the art can make modifications or variations to the above-described specific embodiments after reading the description without departing from the essence and scope of the utility model.

Claims

1. A vehicle frame with a shock-absorbing structure, comprising a chassis frame (1), characterized in that: The shock absorption structure includes a leaf spring assembly (2), which includes a first leaf spring (201) at the bottom and an arc-shaped second leaf spring (202) at the top. The two ends of the second leaf spring (202) are wound to form a cavity, and a transmission wheel (3) is inserted into the cavity. The two ends of the transmission wheel (3) are connected to the chassis support (4). The chassis support (4) is detachably and securely installed on the chassis frame (1). The leaf spring assembly (2) also includes a top leaf spring (203) formed by multiple arc segments above the second leaf spring (202).

2. The vehicle frame with shock absorption structure according to claim 1, characterized in that: A certain gap is formed between the two ends of the top plate spring (203) and the second plate spring (202), so that the two ends of the top plate spring (203) are suspended.

3. The vehicle frame with shock absorption structure according to claim 1, characterized in that: There is one or more leaf springs between the top leaf spring (203) and the second leaf spring (202), and the two ends of the one or more leaf springs added between the top leaf spring (203) and the second leaf spring (202) are progressively recessed from top to bottom.

4. The vehicle frame with shock absorption structure according to claim 1, characterized in that: The two ends of the multiple leaf springs added between the first leaf spring (201) and the second leaf spring (202) are gradually recessed from top to bottom.

5. The vehicle frame with shock absorption structure according to claim 1, characterized in that: The way the two ends of the transmission wheel (3) are connected to the chassis support (4) is as follows: it includes a zigzag connecting piece (501), and the two sides of the zigzag connecting piece (501) have side connecting pieces. The side connecting pieces on both sides are respectively placed between the two ends of the transmission wheel (3) and the chassis support (4). The transmission wheel (3) and the side connecting pieces are connected to the corresponding chassis support (4) through detachable fasteners.

6. The vehicle frame with shock-absorbing structure according to claim 1, characterized in that: The transmission wheel (3) is connected to the chassis support (4) at both ends in the following manner: it includes two independent single-sided connecting pieces (502). The two ends of the transmission wheel (3) are respectively connected to the lower part of the two single-sided connecting pieces (502), and the upper part of the two single-sided connecting pieces (502) is connected to the corresponding chassis support (4) through detachable fasteners.

7. The vehicle frame with shock absorption structure according to claim 1, characterized in that: The bottom of the first leaf spring (201) is supported on the surface of the sleeve (9) by a support bracket (6). The top leaf spring (203) is provided with a cover plate (7). The cover plate (7), leaf spring assembly (2), and support bracket (6) are fastened to the surface of the sleeve (9) by a U-shaped detachable fastener (8). The sleeve (9) is fitted on the outer wall of the connecting shaft (11) used to connect the two drive wheels (10).

8. The vehicle frame with shock-absorbing structure according to claim 1, characterized in that: The chassis frame (1) includes two transverse beams (101) and a longitudinal beam (102) connecting the two transverse beams (101). The two sets of chassis supports (4) corresponding to the two sets of leaf spring assemblies (2) are detachably and securely installed with the two transverse beams (101).

9. A sweeper vehicle, characterized in that: Includes the frame as described in any one of claims 1-8 and a cleaning component for sweeping materials into a hopper.

10. A feeding vehicle, characterized in that: It includes the frame as described in any one of claims 1-8 and the feeding component for discharging material from the feeding bin.