A single-drive double-shaft two-speed amplitude vertical vibration wheel and roller thereof

Abstract

The present invention discloses a single-drive dual-axis two-speed amplitude vertical vibration wheel, comprising a pressure wheel assembly, a driving assembly, a braking assembly and a vibration assembly. The pressure wheel assembly comprises a pressure wheel and a rolling wheel shell sleeved on the outside of the pressure wheel, the pressure wheel is fixed to a vehicle frame, the driving assembly comprises a driving device fixed to the inner wall of the pressure wheel, the driving device drives the rolling wheel shell to rotate through a transmission shaft; the vibration assembly and the braking assembly are both fixed to the inner wall of the pressure wheel, the vibration assembly provides a plurality of gears of vertical vibration; the braking assembly is used to brake the driving assembly. The single-drive dual-axis two-speed amplitude vertical vibration wheel and roller of the present invention realize that the vibration of the vibration assembly does not need to rotate synchronously with the rolling wheel shell, so that the rotation and vibration are separated, so as to avoid the impact of the gears caused by external forces, improve the reliability of the operation of the vibration wheel, and realize the vertical vibration of the vibration wheel when it loses weight.

Description

Technical Field

[0001] The invention relates to a vertical vibrating wheel and a road roller thereof, in particular to a single-drive double-shaft two-speed amplitude vertical vibrating wheel and a road roller thereof, belonging to the technical field of engineering machinery. Background Art

[0002] Vertical vibration, as a vibration mode different from circular vibration, has a unique compaction advantage. Structurally, vertical vibration must have a set of synchronous reverse structures to make the two sets of exciters rotate synchronously in opposite directions, canceling out the centrifugal force in the horizontal direction and leaving only the centrifugal force vertical to the ground.

[0003] At present, most vertical vibration wheel synchronous reverse structures adopt single-axis gearbox transmission. The exciting center axis is on the center line of the wheel shell. The vibration motor provides power. The gear transmission mechanism installed in the gear box enables two or three groups of exciters to achieve synchronous reverse rotation, thereby achieving vertical vibration. In this type of vibration wheel structure, the gears not only need to transmit torque, but also vibrate with the entire vibration wheel. Since the gearbox participates in the vibration of the entire vibration wheel, the gears impact each other when multiple sets of gears are meshed. The gears are prone to pitting and damage, which reduces the life of the vibration wheel. At the same time, the vibration wheel is still moving, and the position of the gearbox affects the direction and size of the exciting force.

[0004] Therefore, it is necessary to design a new vertical vibrating wheel and a road roller thereof to solve the problem that the vibrating wheel in the prior art is easily damaged by impact. Summary of the invention

[0005] The purpose of the present invention is to overcome the disadvantage that the vibrating wheel in the prior art is easily damaged by impact, and to provide a single-drive double-axis two-speed amplitude vertical vibrating wheel and a road roller thereof. The technical solution is as follows:

[0006] A single-drive, double-axis, two-speed amplitude vertical vibration wheel comprises a pressure wheel assembly, a driving assembly, a braking assembly and a vibration assembly.

[0007] The pressure wheel assembly includes a pressure wheel and a rolling wheel shell sleeved on the outside of the pressure wheel. The pressure wheel is fixed to the frame.

[0008] The driving assembly includes a driving device fixed on the inner wall of the pressure wheel, and the driving device drives the rolling wheel shell to rotate through the transmission shaft; the vibration assembly and the braking assembly are both fixed on the inner wall of the pressure wheel, and the vibration assembly provides several gears of vertical vibration; the braking assembly is used to brake the driving assembly.

[0009] Furthermore, a transmission gear is rotatably arranged inside the pressure wheel, a driving gear meshing with the transmission gear is fixedly arranged on the transmission shaft of the driving assembly, and the telescopic end of the brake assembly is extended and then clamped into the transmission gear to achieve braking of the transmission gear.

[0010] Further, the vibration assembly includes a vibration housing, a vibration motor, a first vibration exciter, a fixing plate, a first bearing, a driving gear, a driven gear, a second bearing, a second vibration exciter, and a third bearing;

[0011] The vibration shell is fixed on the inner wall of the pressure wheel, and a fixed plate is fixedly arranged inside the vibration shell. One end of the first exciter extends out of the vibration shell and is connected to the vibration motor, and the other end of the first exciter is rotatably arranged on the fixed plate through a first bearing; a driving gear is arranged on an end of the first exciter away from one end of the vibration motor, one end of the second exciter is rotatably arranged on the fixed plate through a second bearing, and a driven gear is rotatably arranged after extending out of the fixed plate, and the driven gear is meshed with the driving gear, and the other end of the second exciter is rotatably arranged on the side wall of the vibration shell through a third bearing.

[0012] A road roller comprises the aforementioned single-drive double-shaft two-speed amplitude vertical vibration wheel.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] The single-drive, dual-amplitude vertical vibrating wheel and roller of the present invention realize that the vibration of the vibrating component does not need to rotate synchronously with the rolling wheel shell, so that the rotation and vibration are separated, the impact of gears caused by external forces is avoided, the reliability of the vibrating wheel operation is improved, and the vertical vibration of the vibrating wheel is realized when the vibrating wheel loses weight. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of a single-drive, dual-axis, two-speed amplitude vertical vibration wheel of the present invention;

[0016] In the figure: 1-pressure wheel assembly, 11-pressure wheel, 12-first shock absorber, 13-second shock absorber, 14-rolling wheel housing;

[0017] 2-driving assembly, 21-driving device, 22-driving gear, 23-transmission gear, 24-transmission shaft, 25-bearing gland;

[0018] 3-vibration assembly, 31-vibration motor, 32-first bearing, 33-third bearing, 34-driving gear, 35-driven gear, 36-first exciter, 37-second exciter, 38-coupling, 39-second bearing;

[0019] 4-Brake assembly. DETAILED DESCRIPTION

[0020] The present invention will be further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention.

[0021] Example 1

[0022] like Figure 1 As shown, a single-drive dual-axis two-speed amplitude vertical vibration wheel includes a pressure wheel assembly 1, a driving assembly 2, a braking assembly 4 and a vibration assembly 3.

[0023] The pressure wheel assembly 1 includes a pressure wheel 11 and a rolling wheel shell 14 sleeved on the outside of the pressure wheel 11. The pressure wheel 11 is fixed to the frame.

[0024] The driving assembly 2 includes a driving device 21 fixed to the inner wall of the pressing wheel 11, and the driving device drives the rolling wheel shell to rotate through the transmission shaft;

[0025] The vibration component 3 and the brake component 4 are both fixed on the inner wall of the pressure wheel. The vibration component 3 provides two gears of vertical vibration; the brake component 4 is used to brake the driving component 2.

[0026] A transmission gear 23 is rotatably arranged inside the pressure wheel 11, and a driving gear 22 meshing with the transmission gear 23 is fixedly arranged on the transmission shaft 24 of the driving assembly 2. After the telescopic end of the brake assembly 4 is extended, it is engaged with the transmission gear 23 to brake the transmission gear 23, thereby braking the driving gear 22.

[0027] The driving device 21 is a driving motor that can provide driving power for the driving gear 22. The driving gear 22 is connected to the driving device 21 by an internal spline. The driving motor 21 drives the driving gear 22 to rotate, thereby driving the rolling wheel shell 14 to rotate relative to the pressure wheel 11. The speed is reduced by the gear transmission ratio and the transmission torque is increased. In this embodiment, the transmission gear 23 is rotatably arranged on a bracket (not shown in the figure), and the bracket is fixed inside the pressure wheel 11.

[0028] When braking is not required, the transmission gear 23 meshes with the driving gear 22 as the driving gear 22 rotates, and the transmission gear 23 rotates passively.

[0029] When braking is required, the brake assembly 4 in this embodiment is specifically a brake cylinder, which provides braking power during operation. The brake cylinder drives the piston to move to achieve the extension and retraction of the rod end to achieve the braking and unlocking functions of the transmission gear 23. The rod end of the brake cylinder extends into the slot (not shown in the figure) in the transmission gear 23 to achieve the locking of the transmission gear 23. At this time, the transmission gear 23 is driven to stop rotating, thereby achieving the braking of the driving gear 22. The brake assembly 4 limits the transmission gear 23 to achieve the braking function of the rolling wheel housing 14. When the hydraulic cylinder reaches a certain pressure, it can be unlocked and locked to achieve the retraction of the hydraulic cylinder.

[0030] Specifically, in this embodiment, the vibration assembly 3 includes a vibration housing, a vibration motor 31, a first vibration exciter 36, a fixing plate, a first bearing 32, a driving gear 34, a driven gear 35, a second bearing 39, a second vibration exciter 37, and a third bearing 33;

[0031] The vibration shell is fixed on the inner wall of the pressure wheel 11, and a fixed plate is fixedly arranged inside the vibration shell. One end of the first exciter 36 extends out of the vibration shell and is connected to the vibration motor. The other end of the first exciter 36 is rotatably arranged on the fixed plate through a first bearing. The driving gear 34 is arranged on the end of the first exciter 36 away from the vibration motor. One end of the second exciter 37 is rotatably arranged on the fixed plate through a second bearing, and a driven gear 35 is rotatably arranged after extending from the fixed plate. The driven gear 35 meshes with the driving gear 34, and the other end of the second exciter 37 is rotatably arranged on the side wall of the vibration shell through a third bearing. A first through hole is provided on the side wall of the vibration shell for the shaft end of the first exciter 36 to pass through. A fixed plate is fixedly arranged inside the vibration shell, and a first bearing hole for installing the first bearing 32 is provided on the fixed plate. One end of the first exciter 36 passes through the first through hole and is transmission-connected to the vibration motor 31. The first exciter 36 is rotatably connected in the first bearing seat 32, and the other end of the first exciter 36 is fixed to the driving gear 34.

[0032] The second bearing hole and the third bearing hole for placing the second bearing 39 and the third bearing seat 33 are respectively provided on the fixed plate and the side wall of the vibration shell. The second exciter 37 is rotatably arranged in the second bearing 39 and the third bearing 33 on both sides, and the driven gear 35 meshing with the driving gear 34 is arranged at the end of the second exciter 37. In this embodiment, the vibration bearing 39 is fixedly arranged in the first bearing 32 and the second bearing 39. The vibration motor 31 provides vibration power. The vibration assembly 3 can provide two amplitudes.

[0033] The first vibrator 36 and the second vibrator 37 include two different structures, namely a fixed eccentric block and a movable eccentric block. The forward and reverse rotations of the vibrators can realize different static eccentric distances, thereby realizing two amplitudes.

[0034] Specifically in this embodiment, the vibration motor 31 is connected to the first exciter 36 via a coupling 38 .

[0035] Specifically, in this embodiment, the first vibration exciter 36 includes a first fixed eccentric block and a first movable eccentric block, the first fixed eccentric block is fixedly arranged on the first vibration exciter 36, and the first movable eccentric block is rotatably arranged on the first vibration exciter 36;

[0036] The second vibrator 37 includes a second fixed eccentric block and a second movable eccentric block. The second fixed eccentric block is fixedly disposed on the second vibrator 37 , and the second movable eccentric block is rotatably disposed on the second vibrator 37 .

[0037] Specifically, in this embodiment, a first shock absorber 12 and a second shock absorber 13 are also included.

[0038] The first shock absorber 12 is embedded in the connection between the rolling wheel shell 14 and the frame. A fixing part is convexly provided on the outside of the cylindrical surface of the pressure wheel 11, and the fixing part is connected to the frame. The second shock absorber 13 is arranged on the contact surface between the outer peripheral surface of the fixing part and the frame. The first shock absorber 12 and the second shock absorber 13 are both installed on the pressure wheel 11 structure and connected to the frame. The static eccentricity of the first exciter 36 and the second exciter 37 are equal, and the rotation direction is opposite when working. The rolling wheel shell 14 is connected to the drive assembly 2 to realize the walking function of the roller.

[0039] The central axes of the first vibrator 36 and the second vibrator 37 are not on the geometric center line of the pressing wheel 11 and are located on the same side of the geometric center position of the pressing wheel 11 .

[0040] Specifically, in this embodiment, a bearing cover 25 is further included which is fixed on the rolling wheel housing 14, and the bearing cover 25 is fixed to the transmission shaft 24. The bearing cover 25 is fixed to the shaft end of the transmission shaft 24.

[0041] A road roller comprises the aforementioned single-drive double-shaft two-speed amplitude vertical vibration wheel.

[0042] Here’s how it works:

[0043] During operation, the rolling wheel housing 14 is rotatably arranged outside the pressing wheel 11 through the driving assembly 2, and the rolling wheel housing 14 and the pressing wheel 11 realize relative movement. During the travel of the roller, the pressing wheel 11, the first shock absorber 12, and the second shock absorber 13 are stationary relative to the ground, and the rolling wheel housing 14 realizes the rolling travel function.

[0044] The present invention discloses a single-drive, dual-axis, two-speed amplitude vertical vibration wheel. According to the principle of vertical vibration, two groups of exciters with the same initial angle and facing vertically downward are arranged in the vibration wheel. A vibration motor 31 provides power for the first exciter 36 and the second exciter 37. The first exciter 36 and the second exciter 37 are synchronously rotated in the opposite direction by meshing and synchronously moving the driving gear 34 and the driven gear 35 installed at one end, thereby realizing vertical vibration when the vibration wheel loses weight. The gear meshing undertakes the correction work of synchronous reverse direction and realizes the function of transmitting torque at the same time. The two groups of exciters rotating in opposite directions provide completely opposite exciting forces except the vertical direction, thereby ensuring that the vibration wheel always vibrates vertically. During the vibration operation, the internal structure of the pressure wheel will not rotate around the geometric center of the pressure wheel as the roller travels, the travel assembly and the vibration assembly will not be affected by external forces, and the gears will not be impacted during the meshing process, thereby improving its reliability. The exciter is composed of two kinds of eccentric blocks, one movable and one fixed, and the vibration motor provides two kinds of rotation directions, so that the exciter produces two different static eccentric distances to realize two-speed amplitude.

[0045] The single-drive, dual-axis, two-speed amplitude vertical vibrating wheel and roller of the present invention achieve the goal that the vibration component does not need to rotate synchronously with the rolling wheel shell when vibrating, so that rotation and vibration are separated, and two speed amplitudes are available for selection, thereby avoiding impact on gears caused by external forces, improving the reliability of the vibration wheel operation, and achieving vertical vibration when the vibration wheel is weightless.

[0046] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A single-drive, dual-axis, two-speed amplitude vertical vibration wheel, characterized in that: The vehicle comprises a pressure wheel assembly, a driving assembly, a braking assembly and a vibration assembly. The pressure wheel assembly comprises a pressure wheel and a rolling wheel shell sleeved on the outside of the pressure wheel. The pressure wheel is fixed to the frame. The driving assembly includes a driving device fixed to the inner wall of the pressure wheel, and the driving device drives the rolling wheel shell to rotate through the transmission shaft; The vibration component and the brake component are both fixed on the inner wall of the pressure wheel. The vibration component provides several gears of vertical vibration; the brake component is used to brake the driving component; A transmission gear is rotatably arranged inside the pressure wheel, a driving gear meshing with the transmission gear is fixedly arranged on the transmission shaft of the driving assembly, and the telescopic end of the brake assembly is extended and then clamped into the transmission gear to achieve braking of the transmission gear; The vibration assembly includes a vibration housing, a vibration motor, a first vibration exciter, a fixing plate, a first bearing, a driving gear, a driven gear, a second bearing, a second vibration exciter, and a third bearing; The vibration shell is fixed on the inner wall of the pressure wheel, and a fixing plate is fixedly arranged inside the vibration shell. One end of the first vibrator extends out of the vibration shell and is connected to the vibration motor, and the other end of the first vibrator is rotatably arranged on the fixing plate through a first bearing; the driving gear is arranged on the end of the first vibrator away from one end of the vibration motor, one end of the second vibrator is rotatably arranged on the fixing plate through a second bearing, and a driven gear is rotatably arranged after extending out of the fixing plate, and the driven gear is meshed with the driving gear, and the other end of the second vibrator is rotatably arranged on the side wall of the vibration shell through a third bearing.

2. The single-drive, dual-axis, two-speed amplitude vertical vibration wheel according to claim 1, characterized in that: The vibration motor is connected to the first vibration exciter via a coupling.

3. The single-drive, dual-axis, two-speed amplitude vertical vibration wheel according to claim 1, characterized in that: The first vibration exciter comprises a first fixed eccentric block and a first movable eccentric block, wherein the first fixed eccentric block is fixedly arranged on the first vibration exciter, and the first movable eccentric block is rotatably arranged on the first vibration exciter; The second vibration exciter includes a second fixed eccentric block and a second movable eccentric block, the second fixed eccentric block is fixedly disposed on the second vibration exciter, and the second movable eccentric block is rotatably disposed on the second vibration exciter.

4. The single-drive, dual-axis, two-speed amplitude vertical vibration wheel according to claim 1, characterized in that: It also includes a first shock absorber and a second shock absorber. The first shock absorber is embedded in the connection between the rolling wheel shell and the frame. A fixing part is protruded from the outside of the cylindrical surface of the pressure wheel. The fixing part is connected to the frame. The second shock absorber is arranged on the contact surface between the outer peripheral surface of the fixing part and the frame.

5. The single-drive, dual-axis, two-speed amplitude vertical vibration wheel according to claim 1, characterized in that: It also includes a bearing pressure cover fixed on the rolling wheel shell, and the bearing pressure cover is fixed to the transmission shaft.

6. A road roller, characterized in that: A single-drive, dual-axis, two-speed amplitude vertical vibration wheel comprising any one of the preceding claims.

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