Height-adjustable chassis device

Abstract

The utility model provides a height-adjustable chassis device which comprises a chassis base and Mecanum wheels, damping devices are fixedly installed at the two ends of the chassis base, height adjusting assemblies are installed on the two sides of each damping device, and the Mecanum wheels are installed at the bottoms of the height adjusting assemblies. The damping device comprises a connecting bridge, a connecting frame, an assembling block, a connecting rod, a movable rod and a damper. According to the chassis device with the adjustable height, the height of the base can be changed, the situation that the chassis base collides with the uneven bottom face in the advancing process of the chassis device, and consequently the chassis base is damaged is prevented, the damping effect can be achieved, and instruments on the chassis device are prevented from being damaged in the bumping process.

Description

Technical Field

[0001] The utility model relates to the technical field of mobile machinery, and more specifically to a chassis device with adjustable height. Background Art

[0002] In working environments such as mountain tea gardens and fields, the road conditions for tea pickers and other working equipment are relatively complex. Sometimes they need to travel on uneven surfaces with high friction, and sometimes they need to cross mountain roads and ditches. Existing working equipment generally uses ordinary wheeled motion mechanisms for travel, and the width between the chassis and wheels cannot be adjusted. Therefore, it is difficult to work on complex road conditions.

[0003] In view of the above problems, regarding the technical problem that the existing working equipment generally adopts ordinary wheeled motion mechanism to travel, and the width between the chassis and the wheels cannot be adjusted, after a lot of searches, an adjustable chassis device with patent number CN210101812U was found, including two left and right McNamee wheel mounting seats, on which Mecanum wheels and their driving motors are respectively installed, and the two McNamee wheel mounting seats are connected through a lateral telescopic mechanism to cooperate with the Mecanum wheels to adjust the lateral width of the chassis, and the upper sides of the two McNamee wheel mounting seats are respectively connected to lifting platforms through lifting mechanisms to support and install the working equipment, and the lower sides of the left and right lifting platforms are respectively connected to track wheels through retractable mechanisms to switch between Mecanum wheels or track wheels according to work needs, but the technical solution provided by the patent still has the following problems;

[0004] (1) When the device uses Mecanum wheels to travel, the height of the Mecanum wheel mounting seat at the bottom of the device cannot be changed from the bottom surface. When the device travels on a road with large ups and downs, the bottom of the device is prone to contact and rub against the road surface, causing wear of the device;

[0005] (2) The device lacks a shock-absorbing structure. When the device is traveling on a complex road surface, it is very easy to be bumpy, which may cause damage to the instruments on the chassis device. Utility Model Content

[0006] The utility model aims to solve the technical problems raised by the above-mentioned background technology, and provides a chassis device with adjustable height, which can adjust the height of the bottom of the device from the bottom surface and has excellent shock absorption ability.

[0007] To achieve the above object, the utility model provides the following technical solution: a chassis device with adjustable height, comprising: a chassis seat, a Mecanum wheel, shock absorbing devices are fixedly installed at both ends of the chassis seat, height adjustment components are installed on both sides of the shock absorbing device, and the Mecanum wheel is installed at the bottom of the height adjustment component;

[0008] The shock absorbing device comprises: a connecting bridge, a connecting frame, an assembly block, a connecting rod, a movable rod and a shock absorber, wherein the connecting bridge is fixedly mounted on one end of the chassis seat, the connecting frame is mounted on both sides of the connecting bridge, the assembly block is mounted on one side of the connecting frame, the connecting rod is mounted in the connecting frame, the movable rod is mounted on one end of the connecting rod, and the shock absorber is arranged between the connecting rods on both sides;

[0009] The height adjustment assembly includes: a mounting frame, a mounting bar, a double-rod hydraulic pressure device, a hydraulic rod and a connecting block. The hydraulic rod is installed at the bottom end of the mounting frame, the double-rod hydraulic pressure device is installed at the bottom end of the hydraulic rod, the mounting bar is installed on both sides of the bottom end of the mounting frame, and the connecting block is installed at both ends of the double-rod hydraulic pressure device and is movably connected to the mounting bar.

[0010] A further preferred solution is that hinged protrusions are provided on both sides of the connecting bridge, one end of the connecting frame is movably hinged in the hinged protrusion on the connecting bridge, and a mounting column is also provided on the top of the connecting bridge, and the other end of the mounting column is connected to both sides of the movable rod.

[0011] A further preferred solution is that a mounting rod is provided at the bottom center of the connecting frame, and the mounting rod passes through one end of the connecting rod so that the connecting rod can be movably mounted on the mounting rod, and the other end of the connecting rod is movably hinged to one end of the movable rod.

[0012] A further preferred solution is that the movable rod is arranged in an "L" shape, one end of the movable rod is provided with a hinge groove, which is movably hinged to the connecting rod, and the bottom of the other end of the movable rod is fixedly connected to the shock absorber.

[0013] A further preferred solution is that a hinged protrusion is also provided on one side of the assembly block, the other end of the connecting frame is movably hinged in the hinged protrusion on the assembly block, and the assembly block is fixedly connected to the mounting frame on the side opposite to the side with the hinged protrusion.

[0014] A further preferred solution is that the mounting bar is movably hinged to both sides of the bottom of the mounting frame, and mounting grooves are provided on both sides of the mounting bar, a circular mounting groove is provided at the bottom of the mounting bar, a driving motor is provided in the mounting groove, and a Mecanum wheel is installed at the output end of the driving motor.

[0015] A further preferred solution is that two assembly protrusions are symmetrically arranged on one end face of the connecting block, and a mounting protrusion is further arranged on the assembly protrusion, and the shape and size of the mounting protrusion match the mounting groove on the mounting strip.

[0016] Beneficial effects:

[0017] 1. By providing a height adjustment component, the double-rod hydraulic device and the hydraulic rod in the height adjustment component are used to change the state of the mounting bar, so that the mounting bar becomes inclined or vertical, so as to change the height of the chassis seat from the bottom surface, thereby preventing the chassis seat from colliding with the uneven bottom surface during the movement of the chassis device, causing damage to the chassis seat;

[0018] 2. By providing a shock absorbing device, when the chassis seat device vibrates during travel, when the mounting frame moves up and down during the vibration, the assembly block will move together with the mounting frame, thereby driving the connecting frame to rotate. The rotation of the connecting frame will drive the connecting rod and the movable rod to move, and transmit the force generated by the vibration to the shock absorber. The shock absorber will generate a damping force on the vibration force to offset the vibration to achieve the purpose of shock absorption, thereby preventing the instrument on the chassis device from being damaged during bumps;

[0019] 3. In summary, this height-adjustable chassis device, by being provided with structures such as a shock-absorbing device and a height-adjusting component, can change the height of the base, thereby preventing the chassis seat from colliding with the uneven bottom surface during the movement of the chassis device, thereby causing damage to the chassis seat, and can also achieve a shock-absorbing effect, thereby preventing the instruments on the chassis device from being damaged during bumps. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0021] Figure 2 It is a schematic diagram of the structure of the height adjustment component of the utility model.

[0022] Figure 3 It is a schematic diagram of the structure of the shock absorbing device of the utility model.

[0023] Figure 4 This is a schematic diagram of the connection block structure of the utility model.

[0024] Figure 1-4 In: 1. chassis base; 2. shock absorbing device; 201. connecting bridge; 202. connecting frame; 203. assembly block; 204. connecting rod; 205. movable rod; 206. shock absorber; 3. height adjustment assembly; 301. mounting frame; 302. mounting bar; 303. double-rod hydraulic press; 304. hydraulic rod; 305. connecting block; 4. Mecanum wheel; 5. driving motor. DETAILED DESCRIPTION

[0025] The following will be combined with the attached embodiment of the utility model Figure 1-Figure 4 , clearly and completely describe the technical solutions in the embodiments of the utility model.

[0026] See also Figure 1-4In the embodiment of the utility model, a height-adjustable chassis device comprises: a chassis seat 1 and a Mecanum wheel 4. Shock absorbers 2 are fixedly installed at both ends of the chassis seat 1. Height adjustment components 3 are installed on both sides of the shock absorbers 2. The Mecanum wheel 4 is installed at the bottom of the height adjustment component 3. When the height of the chassis seat 1 is adjusted to lower the height of the chassis seat 1, the double-rod hydraulic press 303 will push the connecting block 305 to move to both sides. At the same time, the hydraulic rod 304 will extend, pushing the double-rod hydraulic press 303 and the connecting block 305 to move downward together, so that the mounting bar 302 changes from a vertical state to an inclined state, thereby achieving the effect of lowering the height of the chassis seat 1. When the height of the chassis seat 1 is adjusted to increase the height of the chassis seat 1, the double-rod hydraulic press 303 will pull the connecting block 305. Move toward the double-rod hydraulic press 303 to change the mounting bar 302 from an inclined state to a vertical state, thereby achieving the purpose of increasing the height of the chassis seat 1, and then the hydraulic rod 304 contracts, so that the height of the double-rod hydraulic press 303 is also increased to prevent the double-rod hydraulic press 303 from colliding with the uneven bottom surface. When the chassis device vibrates during travel and the mounting frame 301 moves up and down during vibration, the assembly block 203 will move with the mounting frame 301, thereby driving the connecting frame 202 to rotate. The rotation of the connecting frame 202 will drive the connecting rod 204 and the movable rod 205 to move, and transmit the force generated by the vibration to the shock absorber 206. The shock absorber 206 will generate a damping force to offset the force generated by the vibration to achieve the shock absorption effect.

[0027] The shock absorbing device 2 comprises: a connecting bridge 201, a connecting frame 202, an assembly block 203, a connecting rod 204, a movable rod 205 and a shock absorber 206, wherein the connecting bridge 201 is fixedly mounted on one end of the chassis base 1, the connecting frame 202 is mounted on both sides of the connecting bridge 201, the assembly block 203 is mounted on one side of the connecting frame 202, the connecting rod 204 is mounted in the connecting frame 202, the movable rod 205 is mounted on one end of the connecting rod 204, and the shock absorber 206 is arranged between the connecting rods 204 on both sides;

[0028] The height adjustment assembly 3 includes: a mounting frame 301, a mounting bar 302, a double-rod hydraulic press 303, a hydraulic rod 304 and a connecting block 305. The hydraulic rod 304 is installed at the bottom end of the mounting frame 301, the double-rod hydraulic press 303 is installed at the bottom end of the hydraulic rod 304, the mounting bar 302 is installed on both sides of the bottom end of the mounting frame 301, and the connecting block 305 is installed at both ends of the double-rod hydraulic press 303 and is movably connected to the mounting bar 302.

[0029] In the embodiment of the utility model, hinged protrusions are provided on both sides of the connecting bridge 201, and one end of the connecting frame 202 is movably hinged in the hinged protrusion on the connecting bridge 201, so that the connecting frame 202 can rotate in the hinged protrusion. A mounting column is also provided at the top of the connecting bridge 201, and the other end of the mounting column is connected to both sides of the movable rod 205.

[0030] In the embodiment of the utility model, a mounting rod is provided at the bottom center of the connecting frame 202, and the mounting rod passes through one end of the connecting rod 204, so that the connecting rod 204 can be movably mounted on the mounting rod, and at the same time, the other end of the connecting rod 204 is movably hinged to one end of the movable rod 205. When the connecting frame 202 rotates, it will push the connecting rod 204 to move, and the connecting rod 204 will drive the movable rod 205 movably hinged to the other end of the connecting rod 204 to rotate on the mounting column at the top of the connecting bridge 201.

[0031] In the embodiment of the utility model, the movable rod 205 is arranged in an "L" shape, and a hinge groove is arranged at one end of the movable rod 205, which is movably hinged with the connecting rod, and the bottom of the other end of the movable rod 205 is fixedly connected to the shock absorber 206. When the connecting rod 204 drives the movable rod 205 to rotate, the movable rod 205 will generate a force to compress the shock absorber 206, and the shock absorber 206 will generate a damping force on the movable rod 205 to prevent the movable rod 205 from rotating.

[0032] In the embodiment of the utility model, one side of the assembly block 203 is also provided with a hinged protrusion, and the other end of the connecting frame 202 is movably hinged in the hinged protrusion on the assembly block 203. The assembly block 203 is fixedly connected to the mounting frame 301 on the side opposite to the side provided with the hinged protrusion. When the mounting frame 301 moves up and down during vibration, the assembly block 203 will move together with the mounting frame 301, thereby driving the connecting frame 202 to rotate. The rotation of the connecting frame 202 will drive the connecting rod 204 and the movable rod 205 to move, thereby transmitting the force generated by the vibration to the shock absorber 206.

[0033] In the embodiment of the utility model, the mounting bar 302 is movably hinged to the two sides of the bottom of the mounting frame 301, and mounting grooves are provided on both sides of the mounting bar 302. A circular mounting groove is provided at the bottom of the mounting bar 302, and a driving motor 5 is arranged in the mounting groove. The Mecanum wheel 4 is installed at the output end of the driving motor 5.

[0034] In the embodiment of the utility model, two assembly protrusions are symmetrically arranged on one side end face of the connecting block 305, and an installation protrusion is also arranged on the assembly protrusion. The shape and size of the installation protrusion match the installation groove on the installation strip 302, so that the connecting block 305 can be movably installed in the installation groove.

Claims

1. A chassis device with adjustable height, comprising: A chassis base (1) and a Mecanum wheel (4), characterized in that: shock absorbing devices (2) are fixedly mounted at both ends of the chassis base (1), height adjustment components (3) are mounted on both sides of the shock absorbing device (2), and the Mecanum wheel (4) is mounted at the bottom of the height adjustment component (3); The shock absorbing device (2) comprises: a connecting bridge (201), a connecting frame (202), an assembly block (203), a connecting rod (204), a movable rod (205) and a shock absorber (206); the connecting bridge (201) is fixedly mounted on one end of the chassis seat (1); the connecting frame (202) is mounted on both sides of the connecting bridge (201); the assembly block (203) is mounted on one side of the connecting frame (202); the connecting rod (204) is mounted in the connecting frame (202); the movable rod (205) is mounted on one end of the connecting rod (204); and the shock absorber (206) is arranged between the connecting rods (204) on both sides; The height adjustment assembly (3) comprises: a mounting frame (301), a mounting bar (302), a double-rod hydraulic press (303), a hydraulic rod (304) and a connecting block (305); the hydraulic rod (304) is mounted on the bottom end of the mounting frame (301); the double-rod hydraulic press (303) is mounted on the bottom end of the hydraulic rod (304); the mounting bar (302) is mounted on both sides of the bottom end of the mounting frame (301); the connecting block (305) is mounted on both ends of the double-rod hydraulic press (303) and is movably connected to the mounting bar (302).

2. A height-adjustable chassis device according to claim 1, characterized in that: Both sides of the connection bridge (201) are provided with hinged protrusions, one end of the connection frame (202) is movably hinged to the hinged protrusion on the connection bridge (201), and a mounting column is also provided at the top of the connection bridge (201), the other end of the mounting column is connected to both sides of the movable rod (205).

3. The height-adjustable chassis device according to claim 1, characterized in that: A mounting rod is provided at the bottom center of the connection frame (202), and the mounting rod passes through one end of the connection rod (204), so that the connection rod (204) is movably mounted on the mounting rod, and the other end of the connection rod (204) is movably hinged to one end of the movable rod (205).

4. The height-adjustable chassis device according to claim 1, characterized in that: The movable rod (205) is arranged in an "L" shape, one end of the movable rod (205) is provided with a hinge groove, which is movably hinged to the connecting rod, and the bottom of the other end of the movable rod (205) is fixedly connected to the shock absorber (206).

5. The height-adjustable chassis device according to claim 1, characterized in that: One side of the assembly block (203) is also provided with a hinged protrusion, and the other end of the connection frame (202) is movably hinged in the hinged protrusion on the assembly block (203). The assembly block (203) is fixedly connected to the mounting frame (301) on the side opposite to the side provided with the hinged protrusion.

6. The height-adjustable chassis device according to claim 1, characterized in that: The mounting bar (302) is movably hinged to the two sides of the bottom of the mounting frame (301), and mounting slide grooves are provided on both sides of the mounting bar (302). A circular mounting groove is provided at the bottom of the mounting bar (302), and a driving motor (5) is arranged in the mounting groove. The Mecanum wheel (4) is installed at the output end of the driving motor (5).

7. The height-adjustable chassis device according to claim 1, characterized in that: Two assembly protrusions are symmetrically arranged on one end surface of the connection block (305), and a mounting protrusion is further arranged on the assembly protrusion. The shape and size of the mounting protrusion match the mounting groove on the mounting strip (302).

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