CN201095582Y

CN201095582Y - Ball guiding mechanism applied in automobile inspection bench hoisting device

Info

Publication number: CN201095582Y
Application number: CNU2007200460871U
Authority: CN
Inventors: 杨平原
Original assignee: Anhui Xinzhu Mechanical & Electronic Technology Co Ltd
Current assignee: Anhui Xinzhu Mechanical & Electronic Technology Co Ltd
Priority date: 2007-09-12
Filing date: 2007-09-12
Publication date: 2008-08-06
Anticipated expiration: 2017-09-12

Abstract

The utility model relates to a roll ball guiding mechanism applied in a car detection table lifting device, the roll ball guiding mechanism is characterized in that a lifting plate and a lower seat plate are tightly matched to constitute a rigid frame that can be lifted by a guiding shaft that is sleeved in a guiding seat hole, the guiding seat is tightly connected with a table machine frame, the lower seat plate is connected with a ballonet, and a linear motion bearing which can keep the radial position of the guiding shaft and roll and slide along the axial direction is arranged between the guiding seat and the guiding shaft. The utility model can prevent the mechanism from self-locking effectively and ensure the security under any arbitrary using status with small friction resistance.

Description

Be applied in the ball guiding mechanism in the automobile inspectiton platform lifting device

Technical field:

The utility model relates to a kind of guiding mechanism, more specifically says so to be applied in guiding mechanism in the automobile inspectiton platform lifting device.

Background technology:

On the average speed indicator checkout stand and brake test bench in the automobile inspectiton platform, generally all be provided with lifting device for making things convenient for the vehicle turnover.Its mainly act on function be that lifting device is in the rise state when equipment is not worked, raising board and ground are contour, behind the steady access arrangement control position of vehicle, lifting device descends, (what use during car because of inspection is that the automobile power drive wheels drives cylinder and rotates after wheel contacts with the equipment cylinder and makes the raising board separating wheel, to produce dangerous as wheel contact non-rotatable member), equipment begins testing.After testing was finished, lifting device rose, make wheel of vehicle be raised up to ground contour after, vehicle steadily sails out of equipment.

The lifting device structure of automobile inspectiton Daepori time employing at present is shown in Fig. 1 (a), Fig. 1 (b), the cylinder of pair of parallel setting was in the both sides of raising board 2 in 13 minutes, its principle of work is, pressurized air enters air bag 1 through electrically-controlled valve and pipeline, promote raising board 2 upward movements, drive wheel 3 thus and rise; Electrically-controlled valve is blocked the pressurized air air inlet during decline, and air bag 1 exhaust under lifting device and automobile action of gravity descends.Be to guarantee that raising board 2 rises, descending motion stable, as shown in Figure 1, be provided with by vertical guide groove 4 and with the slide block 5 of vertical guide groove 4 bearing fits as guiding mechanism.Therefore but this guiding form can play directional tagging in horizontal surface, but does not have directional tagging on vertical surface, and when automotive wheel is parked among Fig. 1 wheel position I, hoisting force and pendulum point symmetry are moved on raising board 2 is parallel; When automotive wheel was parked among Fig. 1 wheel position II, hoisting force and pendulum point skew were asymmetric, promptly are in the unbalance loading state, and this moment, raising board 2 was to tilt to rise.Rely on lifting device and automobile action of gravity to descend during decline, because the guide groove slide block adopts sliding friction, frictional resistance is big, and the inclination in the decline process is easy to generate self-locking makes raising board be declined by less than the position, and motor tire can not break away from fully with raising board and constitute the detection potential safety hazard.

Summary of the invention:

The utility model is for avoiding above-mentioned existing in prior technology weak point, a kind of ball guiding mechanism that is applied in the automobile inspectiton platform lifting device being provided, so that reduce frictional resistance, anti-locking mechanism self-locking guarantees the safety under any running condition.

But constructional feature of the present utility model is formed raising board and following seat board the rigid frame of lifting by being sleeved on the axis of guide in the guide holder hole by flush fit, guide holder connects with the stage body frame is fastening, described seat board down and air bag link, between the described guide holder and the axis of guide, setting can keep the axis of guide radial position and the linear motion bearing of roll-sliding vertically.

Constructional feature of the present utility model also is:

Described linear motion bearing is made of steel ball ball and ball retainer, and wherein, ball retainer is arranged on the interior week of guide holder, and the steel ball ball is rectangular distribution on the circumference of ball retainer.

In interior week at described guide holder, the quenching lining is set.

When air bag promoted down the seat board upward movement, the steel ball ball was done axially to roll and at the circumferencial direction constraint axis of guide and raising board parallel motion up and down along the axis of guide.

Compared with the prior art, the beneficial effects of the utility model are embodied in:

1, the utility model replaces sliding motion with rolling movement, and frictional resistance is little, can effectively prevent the locking mechanism self-locking guaranteeing the safety of any running condition.

2, in the utility model the effective limitation and restriction of rigid frame the rotation trend of up-and-down movement, remain the up and down translation of raising board and automobile, avoid the infringement of reversing to equipment and automobile.

3, the utility model can independently be set to one unit, is convenient to organize suitability for industrialized production.

Description of drawings:

Fig. 1 is the prior art structural representation, and wherein Fig. 1 (a) is a front view, and Fig. 1 (b) is a birds-eye view.

Fig. 2 is the utility model master TV structure scheme drawing.

Fig. 3 is Fig. 2 side-looking structural representation.

Fig. 4 is the A portion enlarged view of Fig. 3.

Fig. 5 is the utility model linear motion bearing structural representation.

Fig. 6 is the low-end trim scheme drawing for the utility model raising board.

Fig. 7 is Fig. 6 lateral plan.

Fig. 8 is the high-end trim scheme drawing for the utility model raising board.

Fig. 9 is Fig. 8 lateral plan.

Label among Fig. 1: 1 air bag, 2 raising boards, 3 wheels, 4 vertical guide grooves, 5 slide blocks, 6 guide holders, 7 axis of guides, 8 times seat boards, 9 stage body frames, 10 steel ball balls, 11 ball retainers, 12 quenching linings, 13 cylinders.

Below by the specific embodiment, the utility model is described in further detail in conjunction with the accompanying drawings:

The specific embodiment:

Referring to Fig. 2, Fig. 3 and Fig. 4, but present embodiment by raising board 2, connect firmly in the bottom of raising board 2 and be sleeved on the axis of guide 7 in the guide holder 6 and be sleeved on the rigid frame that following seat board 8 in the guide holder 6 is formed lifting.Wherein,

guide holder

6 and 9 fastening connections of stage body frame, following seat board 8 is fixedly installed on the air bag 1, and between the guide holder 6 and the axis of guide 7, setting can keep the axis of guide 7 radial positions and the linear motion bearing of roll-sliding vertically.

Referring to Fig. 4, Fig. 5, in concrete the enforcement, the corresponding structure setting also comprises:

Linear motion bearing is made of steel ball ball 10 and ball retainer 11, and wherein, ball retainer 11 is arranged on the interior week of guide holder 6, and steel ball ball 10 is at the circumferential rectangular distribution of ball retainer 11.In order to reduce wearing and tearing and to improve load-carrying capacity, quenching lining 12 is set interior week at guide holder 6.

Fig. 6 and Figure 7 shows that raising board 2 is low-end trim, at this moment, checkout stand is on the control position;

Fig. 8 and Figure 9 shows that raising board 2 is high-end trim, at this moment, checkout stand is on the off-position;

When automotive wheel 3 is parked in raising board 2 optional positions, its offset loading force by the frame balance, makes raising board 2 keep parallel motion up and down by the lifting device transmission, has overcome lifting inclination and decline self-locking problem that guide groove slider guide mechanism exists fully.

Claims

1, is applied in ball guiding mechanism in the automobile inspectiton platform lifting device, it is characterized in that by be sleeved on the axis of guide (7) in the guide holder hole with raising board (2) and following seat board (8) but form the rigid frame of lifting by flush fit, guide holder (6) and fastening connection of stage body frame (9), described seat board (8) down links with air bag (1), between the described guide holder (6) and the axis of guide (7), setting can keep the axis of guide (7) radial position and the linear motion bearing of roll-sliding vertically.

2, the ball guiding mechanism that is applied in the automobile inspectiton platform lifting device according to claim 1, it is characterized in that described linear motion bearing is made of steel ball ball (10) and ball retainer (11), wherein, ball retainer (11) is arranged on the interior week of guide holder (6), steel ball ball (10) rectangular distribution on the circumference of ball retainer (11).

3, the ball guiding mechanism that is applied in the automobile inspectiton platform lifting device according to claim 1 is characterized in that in the interior week of described guide holder (6) quenching lining (12) being set.