CN111609083A

CN111609083A - Shock-absorbing device

Info

Publication number: CN111609083A
Application number: CN202010429924.9A
Authority: CN
Inventors: 王天
Original assignee: Hangzhou Chengtian Technology Development Co Ltd
Current assignee: Hangzhou Chengtian Technology Development Co Ltd
Priority date: 2020-05-20
Filing date: 2020-05-20
Publication date: 2020-09-01
Anticipated expiration: 2040-05-20
Also published as: CN111609083B

Abstract

The invention aims to provide a damping device, which is used for damping Mecanum wheels and comprises a bottom plate and a top plate, wherein a guide rail and a guide rod are arranged between the bottom plate and the top plate, and a spring is sleeved on the guide rod; the supporting plate is characterized by further comprising a supporting plate, a supporting plate spring seat is arranged on the side face of the supporting plate, a through hole for the guide rod to penetrate through is formed in the supporting plate spring seat, the spring is located between the top plate and the supporting plate spring seat, a guide rail connecting piece is fixedly connected to the supporting plate, and the guide rail connecting piece limits the supporting plate to only slide up and down along the guide rail.

Description

Shock-absorbing device

Technical Field

The invention relates to the technical field of vehicle body shock absorption, in particular to a shock absorption device.

Background

As a universal wheel capable of realizing all-directional movement, the Mecanum wheel is generally applied to various fields, particularly to a walking-aid robot for assisting mobility-handicapped people, and can flexibly meet the movement requirements of the human body on various directions. On the other hand, the mecanum wheel has higher requirements on the damping performance than the common wheel, and because of the omni-directional movement characteristic of the mecanum wheel, the damping device must be strictly controlled in the vertical direction perpendicular to the moving plane of the mecanum wheel, and when the mecanum wheel is used for providing walking aid for disabled people, the damping performance of the mecanum wheel is far greater than the influence on healthy people.

Current damping devices either do not maintain vertical damping or are not structurally configured for damping of wheels, particularly mecanum wheels.

Disclosure of Invention

Based on the above-mentioned shortcomings of the prior art, the present invention provides a damping device to meet the damping requirement of mecanum wheel, and achieve damping along the strict perpendicular direction and good damping performance.

The technical scheme adopted by the invention is as follows: a damping device is used for damping Mecanum wheels and comprises a bottom plate and a top plate, a guide rail and a guide rod are arranged between the bottom plate and the top plate, the upper end and the lower end of the guide rail are fixedly connected with the top plate and the bottom plate through bolts respectively, the upper end and the lower end of the guide rod are fixedly connected with the top plate and the bottom plate through bolts respectively, and a spring is sleeved on the guide rod; the spring is positioned between the top plate and the support plate spring seat, the guide rod between the support plate spring seat and the bottom plate is also provided with a stop nut, and the stop nut is in threaded fit with the guide rod and is screwed up and down to lock the lowest position of the support plate spring seat sliding along the guide rod;

still fixedly connected with guide rail connecting piece in the backup pad, the guide rail connecting piece is injectd the backup pad can only be followed the guide rail and slided from top to bottom, and is specific, set up the guide rail strip that has the waist of constriction on the guide rail, set up the guide rail groove on the guide rail connecting piece, guide rail groove opening width is less than the inslot width, the guide rail strip can only slide along the groove at the guide rail inslot.

The through-hole tip of backup pad spring holder still is provided with the counter bore, set up the gasket in the counter bore, end and be provided with the amortization rubber circle between nut and the backup pad spring holder, prevent the noise vibration that the backup pad spring holder resets fast and brings.

The damping device can also be provided with an oil cylinder damping component in the middle, specifically, the supporting plate is also provided with a lower fixing lug, the top plate is provided with an upper fixing lug, an oil pressure damping component is arranged between the lower fixing lug and the upper fixing lug, the upper end and the lower end of the oil pressure damping component are respectively hinged with the upper fixing lug and the lower fixing lug through pin shafts, the oil pressure damping component comprises a hydraulic oil cylinder and a shaft rod capable of sliding and stretching in the hydraulic oil cylinder, one end of the hydraulic oil cylinder, which is far away from the shaft rod, is provided with a limiting ring, and a spring is arranged between the two limiting rings, namely the spring is sleeved on the outer sides of the.

The damping module of the spring sleeved on the oil cylinder damping assembly and the guide rod can be combined for use and can also be respectively and independently used. When setting up hydro-cylinder damper, set up U type breach on the roof, U type breach top covers the last fixed ear of U type, oil pressure damper stretches out the roof and is in the same place through round pin axle and last fixed ear both sides board articulated from U type breach.

The damping device outside still is provided with dustproof shell, and the both sides face of dustproof shell and the front of keeping away from mecanum wheel all are provided with adjustment window, adjustment window is sealed by the detachable apron for adjust damper in the dustproof shell, the adjustment window of both sides face is used for adjusting and ends a nut, and positive adjustment window is used for adjusting hydro-cylinder damper.

The invention has the advantages that:

1. the module is easy to assemble, all the parts are fixedly connected together through bolts, all the parts can be produced and processed in batch and then assembled together, and the assembly is convenient;

2. the stop nut is arranged, the position of the supporting plate can be adjusted, disassembly and assembly are not needed, and the adjustment is convenient;

3. the guide rail bar and the guide rail groove can not fall off after being assembled, and the safety is high.

Drawings

FIG. 1 is a schematic diagram of the general structure of the present invention;

FIG. 2 is a schematic view of an assembly structure of the Mecanum wheel and the shock absorbing device of the present invention;

FIG. 3 is a schematic view of the shock absorbing assembly of the present invention;

FIG. 4 is an exploded view of the shock assembly of the present invention;

FIG. 5 is a schematic view of the top plate construction;

in the figure: 1. the device comprises a Mecanum wheel, 2, a dustproof shell, 3, an adjusting window, 4, a bottom plate, 5, a top plate, 6, a supporting plate, 7, a guide rail, 8, a guide rod, 9, a spring, 10, an oil pressure damping component, 11, a supporting plate spring seat, 12, a counter bore, 13, a gasket, 14, a noise reduction rubber ring, 15, a stop nut, 16, a lower fixing lug, 17, a guide rail connecting piece, 18, a guide rail groove, 19, an upper fixing lug, 20 and a U-shaped notch.

Detailed Description

The invention is described in further detail below with reference to the accompanying examples.

The present invention is described in terms of specific embodiments, and other advantages and benefits of the present invention will become apparent to those skilled in the art from the disclosure herein.

Referring to the drawings, the structures, ratios, sizes, and the like shown in the drawings are only used for matching the disclosure of the present disclosure, so as to be understood and read by those skilled in the art, and are not used to limit the conditions that the present disclosure can be implemented, so that the present disclosure has no technical significance, and any structural modification, ratio relationship change, or size adjustment should still fall within the scope of the disclosure of the present disclosure without affecting the efficacy and the achievable purpose of the present disclosure. Meanwhile, the positional limitation terms used in the present specification are for clarity of description only, and are not intended to limit the scope of the present invention, and changes or modifications of the relative relationship therebetween may be regarded as the scope of the present invention without substantial changes in the technical content.

As shown in fig. 1, which is a schematic diagram of an overall structure of the present invention, the damping device of the present invention is used for damping a mecanum wheel 1 in a strictly vertical direction, a dustproof shell 2 is disposed outside a damping component, two side surfaces of the dustproof shell 2 and a front surface far away from the mecanum wheel 1 are both provided with an adjusting window 3, and the adjusting window 3 is closed by a detachable cover plate and is used for adjusting the damping component in the dustproof shell 2.

Fig. 2 is a schematic diagram of an assembly structure of a mecanum wheel and a damping device according to the present invention, wherein a driving motor is integrally installed in the center of the mecanum wheel 1, the motor is connected with a support plate 6 of the damping device, or a bearing connection is provided between a side piece of the mecanum wheel 1 adjacent to the damping device and the support plate of the damping device.

Fig. 3 is a schematic structural diagram of the shock-absorbing assembly of the present invention, fig. 4 is a split view of the shock-absorbing assembly of the present invention, as shown in the figure, the shock-absorbing assembly of the present invention includes a bottom plate 4 and a top plate 5, a guide rail 7 and a guide rod 8 are disposed between the bottom plate 4 and the top plate 5, upper and lower ends of the guide rail 7 are respectively fixedly connected with the top plate 5 and the bottom plate 4 through bolts, upper and lower ends of the guide rod 8 are respectively fixedly connected with the top plate 5 and the bottom plate 4 through bolts, and a spring 9 is sleeved on the guide rod; the device is characterized by further comprising a supporting plate 6 connected with a Mecanum wheel, a supporting plate spring seat 11 is arranged on the side face of the supporting plate 6, a through hole for a guide rod 8 to pass through is formed in the supporting plate spring seat 11, the spring 9 is located between the top plate 5 and the supporting plate spring seat 11, a stop nut 15 is further arranged on the guide rod 8 between the supporting plate spring seat 11 and the bottom plate 4, and the stop nut 15 is matched with the guide rod 8 in a threaded manner and screwed up and down to lock the lowest position, at which the supporting plate spring seat 11 slides along the guide rod 8;

and a guide rail connecting piece 17 is fixedly connected to the support plate 6, and the guide rail connecting piece 17 limits that the support plate 6 can only slide up and down along the guide rail 7. Specifically, the guide rail 7 is provided with a guide rail bar with a narrowed waist, the guide rail connecting piece 17 is provided with a guide rail groove 18, the opening width of the guide rail groove 18 is smaller than the width in the groove, and the guide rail bar can only slide along the groove in the guide rail groove 18.

As shown in fig. 4, a counter bore is further formed in the end portion of the through hole of the support plate spring seat 11, a gasket is arranged in the counter bore, and a noise reduction rubber ring 14 is arranged between the stop nut 15 and the support plate spring seat 11 to prevent noise vibration caused by quick return of the support plate spring seat 11.

As another embodiment, referring to fig. 3-5, a guide rail 7 is disposed between the bottom plate 4 and the top plate 5, the upper and lower ends of the guide rail 7 are fixedly connected with the top plate 5 and the bottom plate 4 respectively through bolts, a guide rail connector 17 is fixedly connected to the support plate 6, and the guide rail connector 17 limits that the support plate 6 can only slide up and down along the guide rail 7; the hydraulic shock absorption device is characterized in that a lower fixing lug 16 is further arranged on the supporting plate 6, an upper fixing lug 19 is arranged on the top plate 5, an oil pressure shock absorption assembly 10 is arranged between the lower fixing lug 16 and the upper fixing lug 19, the upper end and the lower end of the oil pressure shock absorption assembly 10 are hinged to the upper fixing lug 19 and the lower fixing lug 16 through pin shafts respectively, the oil pressure shock absorption assembly 10 comprises a hydraulic oil cylinder and a shaft rod capable of sliding and stretching in the hydraulic oil cylinder, limiting rings are arranged at the ends, far away from each other, of the hydraulic oil cylinder and the shaft rod, springs are arranged between the two limiting rings, and the springs are sleeved.

Fig. 5 is a schematic structural diagram of a top plate, and as shown in the figure, when the oil pressure damping assembly 10 damps the shock, a U-shaped notch 20 is arranged on the top plate 5, an upper fixing lug 19 of the U-shaped notch is covered above the U-shaped notch 20, and the oil pressure damping assembly 10 extends out of the top plate 5 from the U-shaped notch 20 and is hinged with two side plates of the upper fixing lug 19 through a pin shaft.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A damping device is characterized by being used for damping Mecanum wheels and comprising a bottom plate and a top plate, wherein a guide rail and a guide rod are arranged between the bottom plate and the top plate, and a spring is sleeved on the guide rod; the supporting plate is characterized by further comprising a supporting plate, a supporting plate spring seat is arranged on the side face of the supporting plate, a through hole for the guide rod to penetrate through is formed in the supporting plate spring seat, the spring is located between the top plate and the supporting plate spring seat, a guide rail connecting piece is fixedly connected to the supporting plate, and the guide rail connecting piece limits the supporting plate to only slide up and down along the guide rail.

2. The shock absorbing device as claimed in claim 1, wherein a stop nut is further provided on the guide rod between the support plate spring seat and the bottom plate, and the stop nut is screwed up and down in threaded engagement with the guide rod to lock a lowest position of the support plate spring seat sliding along the guide rod.

3. The apparatus according to claim 1, wherein the guide rail is provided with a guide rail bar having a narrowed waist portion, the guide rail coupler is provided with a guide rail groove, the guide rail groove has an opening width smaller than a width of the groove, and the guide rail bar can only slide along the groove in the guide rail groove.

4. The damping device according to claim 1, further characterized in that a counterbore is provided at the end of the through hole of the supporting plate spring seat, and a gasket is provided in the counterbore.

5. The damping device according to claim 2, further characterized in that a noise reduction rubber ring is arranged between the stop nut and the support plate spring seat.

6. The damping device according to claim 1, further characterized in that the supporting plate is further provided with a lower fixing lug, the top plate is provided with an upper fixing lug, an oil pressure damping component is arranged between the lower fixing lug and the upper fixing lug, and the upper end and the lower end of the oil pressure damping component are respectively hinged with the upper fixing lug and the lower fixing lug through pin shafts.

7. A shock absorbing device as claimed in any one of claims 1 to 6, further characterized in that a dust-proof housing is provided on the exterior of the shock absorbing device, and adjustment windows are provided on both sides of the dust-proof housing and on the front side of the dust-proof housing remote from the Mecanum wheels, and the adjustment windows are closed by detachable covers.

8. The cushioning device of claim 7, further characterized in that the support plate is coupled to a mecanum wheel.