CN216072698U

CN216072698U - Auxiliary lifting device for bearing rotation precision measurement

Info

Publication number: CN216072698U
Application number: CN202122087605.7U
Authority: CN
Inventors: 沈立言
Original assignee: WUXI SANLI BEARINGS CO Ltd
Current assignee: WUXI SANLI BEARINGS CO Ltd
Priority date: 2021-08-31
Filing date: 2021-08-31
Publication date: 2022-03-18
Anticipated expiration: 2031-08-31

Abstract

The utility model provides a supplementary hoisting device of bearing rotation accuracy measurement, relates to bearing rotation accuracy measuring device field. The device comprises a bearing rotation precision measuring instrument and a load block, wherein a bearing is fixedly arranged on the bearing rotation precision measuring instrument, the load block is arranged above the bearing, and the device also comprises a lifting jig and a driving device; the load block is provided with a limiting hole, the lifting jig is connected with the limiting hole, and the driving end of the driving device is connected with the lifting jig. After the auxiliary lifting device is adopted, a worker only needs to press a button, and the automatic rising and falling of the load block can be realized. Greatly reducing the labor intensity and improving the working efficiency.

Description

Auxiliary lifting device for bearing rotation precision measurement

Technical Field

The utility model relates to a bearing rotation precision measuring device, in particular to an auxiliary lifting device for bearing rotation precision measurement.

Background

After the bearing is assembled, the inner ring and the outer ring are fixed by a special force, the outer ring is fixed, the inner ring is fixed, and the circular runout and the end face runout of the inner ring and the outer ring are measured. The traditional measuring method is that a finished bearing is arranged on a measuring seat of a bearing rotation precision measuring instrument, a worker carries a corresponding metal load block to the upper part of the bearing to press an inner ring or an outer ring, the hand is loosened after the metal load block is manually rotated to meet the requirement, and the jump data is measured under the condition of inertial rotation of the bearing. Because the conforming block is heavy, the worker needs to carry and lift the load block once every time one bearing is measured, the operation is laborious and the operation efficiency is low.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem that when the rotation precision of a bearing is measured, a worker needs to convey and lift a load block once when measuring one bearing, so that the measurement efficiency is low, the utility model adopts the following technical scheme:

the bearing is fixedly arranged on the bearing rotation precision measuring instrument, and the load block is arranged above the bearing. The lifting fixture and the driving device are also included; the load block is provided with a limiting hole, the lifting jig is connected with the limiting hole, and the driving end of the driving device is connected with the lifting jig.

Specifically, the lifting jig comprises a first spring, a second spring, a telescopic rod, a traction block, a screw rod, a shaft sleeve and a supporting arm; the traction block is fixedly connected with the shaft sleeve, the tail end of the telescopic rod penetrates through the shaft sleeve, the telescopic rod is sleeved in the shaft sleeve, the first spring is sleeved on the telescopic rod, one end of the spring abuts against the shaft sleeve, and the other end of the spring abuts against the head end of the telescopic rod; the support arm is equipped with two at least, and two at least support arms are articulated with the axle sleeve outer wall, and the end-to-end connection of telescopic link has no elastic rope, and no elastic rope is connected with the support arm.

Specifically, one end of the supporting arm is sleeved with a nylon contact block. Can effectively prevent through nylon contact piece that the support arm from rubbing many times with spacing hole, and lead to support arm one end to be damaged, the effectual problem of avoiding repetitious usage to lead to tool friction damage.

The lifting fixture comprises a lifting fixture, a driving device and a gantry, wherein the lifting fixture is arranged on the gantry, the driving device is fixed at the top of the gantry, and the driving end of the driving device is connected with the lifting fixture through a steel wire rope. Can provide certain difference in height for between drive arrangement and the promotion tool through the portal frame, promote convenient operation in vertical direction.

Specifically, the driving device is a cylinder.

Specifically, still include solenoid valve and drive switch, the air supply pipe connection of solenoid valve and cylinder, drive switch and solenoid valve electric connection. The ventilation amount of the air cylinder can be controlled through the electromagnetic valve, so that the movement speed of the lifting jig driven by the air cylinder is controlled. Through drive switch and solenoid valve electric connection, make things convenient for operating personnel to control the operation, as long as control switch just can adjust the speed that promotes the tool, convenient operation.

In summary, the apparatus of the present invention has the following advantages: after the auxiliary lifting device is adopted, a worker only needs to press a button, and the automatic rising and falling of the load block can be realized. Greatly reducing the labor intensity and improving the working efficiency.

Drawings

FIG. 1 is a schematic structural diagram of an auxiliary lifting device for measuring the rotation precision of a bearing;

FIG. 2 is a schematic view of the structure of the opening of the lifting jig in the auxiliary lifting device for measuring the rotation accuracy of the bearing;

FIG. 3 is a top view of a lifting jig in the auxiliary lifting device for measuring the rotational accuracy of a bearing;

reference numerals: 1, lifting the jig; 2, a steel wire rope; 3, a cylinder; 4, a portal frame; 5, compressing the air pipe; 6, an electromagnetic valve; 7, a bearing rotation precision measuring instrument; 8 driving a switch; 9 a load block; 10 bearing;

101 a traction block; 102 a screw rod; 103 a first spring; 104 shaft sleeve; 105 a second spring; 106 a support arm; 107 nylon contact blocks; 108 an inelastic string; 109 telescoping the pole.

Detailed Description

The present invention is further described below with reference to fig. 1 to 3.

The utility model provides a supplementary hoisting device of bearing rotation accuracy measurement, includes bearing rotation accuracy measuring apparatu 7 and load piece 9, treats that the bearing 10 of detecting is fixed in bearing rotation accuracy measuring apparatu 7 on, causes the influence that production efficiency reduces for reducing artifical transport load piece 9, so set up the promotion tool 1 of conveniently carrying load piece 9. The lifting jig 1 comprises a first spring 103, a second spring 105, a telescopic rod 109, a traction block 101, a screw 102, a shaft sleeve 104 and a support arm 106. The traction block 101 is fixedly connected with the shaft sleeve 104 through bolts and nuts, the first spring 103 is sleeved in the telescopic rod 109, the tail end of the telescopic rod 109 penetrates through the shaft sleeve 104 and is sleeved in the shaft sleeve 104, one end of the spring abuts against the shaft sleeve 104, and the other end of the spring abuts against the head end of the telescopic rod 109; the number of the supporting arms 106 is three, the three supporting arms 106 are hinged with the outer wall of the shaft sleeve 104, and the three supporting arms 106 are uniformly distributed on the outer wall of the shaft sleeve 104. The end of the telescopic rod 109 is connected with three inelastic ropes 108, and the three inelastic ropes 108 are respectively connected with the three support arms 106. One end of the support arm 106 is sleeved with a nylon contact block 107. The load block is provided with a limiting hole, the supporting arm 106 is inserted into the limiting hole after being propped open, and then the lifting jig 1 is lifted to realize the lifting of the load block. In order to prevent one end of the supporting arm 106 from being damaged due to the fact that the supporting arm 106 is rubbed with the limiting hole for multiple times, a nylon contact block 107 is further sleeved at one end of the supporting arm 106, and the problem of friction damage is solved.

In order to control the operation of the lifting jig 1 quickly and conveniently, a portal frame 4, a driving device, an electromagnetic valve 6 and a driving switch 8 are configured for the lifting jig 1. The driving device is a cylinder 3, in order to lift the load block in the vertical direction, the fixed end of the cylinder 3 is fixed on the top of the portal frame 4 through a screw nut, and the driving end of the cylinder 3 is connected with the traction block 101 through a steel wire rope 2. In order to control the speed of the movement of the cylinder 3, an electromagnetic valve 6 is provided in a ventilation pipe of the cylinder 3, and the electromagnetic valve 6 controls the flow rate of ventilation to control the speed of driving the cylinder 3. In order to control the opening and closing of the cylinder 3, the solenoid valve 6 is electrically connected to the drive switch 8.

When the device is operated, the following operations are required to detect the bearing:

the first step is as follows: the bearing 10 to be detected is fixed on the bearing rotation precision measuring instrument 7, the load block 9 is placed on the bearing to be detected, and then the load block 9 needs to be lifted and the bearing to be detected is rotated to carry out the next measurement.

The second step is that: and controlling the driving switch 8, and driving the air cylinder 3 to place the lifting jig 1 at the same height with the load block 9. An operator manually presses the telescopic rod 109, the supporting arm 106 is pulled by the inelastic rope 108 at the tail end of the telescopic rod 109 to be downwards stretched until the supporting arm is opened to the maximum angle of 180 degrees, the operator presses the jig with the left hand and presses the lifting button jig of the driving switch 8 with the right hand, and the supporting arm 106 is clamped in the limiting hole and drives the load block 9 to be lifted together in the lifting process.

The third step: after the lifting is started, the operator can release the left hand, at this moment, the telescopic rod 109 is reset under the action of the first spring 103, but the supporting arm 106 is kept in a 180-degree horizontal state due to the weight of the load block 9.

The fourth step: after the lifting operation is finished, an operator presses a descending button, the lifting jig 1 carries the load block 9 to descend until the load block 9 falls on the tested bearing. The lifting jig 1 continues to descend, the load block 9 is fixed, the jig is separated from the load block 9, the supporting arm 106 is drawn in by the acting force of the second spring 105 after separation, the lifting jig 1 does not contact the load block 9 at the moment, an operator can carry out the next rotation detection step, and the second step to the fourth step are repeated until all the angles of all the bearings are detected.

As can be seen from the above description, the device has the following advantages: after the auxiliary lifting device is adopted, a worker only needs to press the driving button, and the automatic rising and falling of the load block 9 can be realized. Greatly reducing the labor intensity and improving the working efficiency.

It should be understood that the detailed description of the utility model is merely illustrative of the utility model and is not intended to limit the utility model to the specific embodiments described. It will be appreciated by those skilled in the art that the present invention may be modified or substituted equally as well to achieve the same technical result; as long as the use requirements are met, the method is within the protection scope of the utility model.

Claims

1. The auxiliary lifting device for measuring the rotation precision of the bearing comprises a bearing rotation precision measuring instrument and a load block, wherein the bearing is fixedly arranged on the bearing rotation precision measuring instrument, and the load block is arranged above the bearing; the load block is provided with a limiting hole, the lifting jig is connected with the limiting hole, and the driving end of the driving device is connected with the lifting jig.

2. The bearing rotation accuracy measurement auxiliary lifting device is characterized in that the lifting jig comprises a first spring, a second spring, a telescopic rod, a traction block, a screw rod, a shaft sleeve and a supporting arm; the traction block is fixedly connected with the shaft sleeve, the tail end of the telescopic rod penetrates through the shaft sleeve, the telescopic rod is sleeved in the shaft sleeve, the first spring is sleeved on the telescopic rod, one end of the spring abuts against the shaft sleeve, and the other end of the spring abuts against the head end of the telescopic rod; the support arm is equipped with two at least, two at least support arms with the axle sleeve outer wall is articulated, the end-to-end connection of telescopic link has no elastic rope, no elastic rope with the support arm is connected.

3. The bearing rotation accuracy measurement auxiliary lifting device as claimed in claim 2, wherein one end of the supporting arm is sleeved with a nylon contact block.

4. The bearing rotation accuracy measurement auxiliary lifting device according to claim 1, further comprising a gantry, wherein the driving device is fixed to the top of the gantry, and a driving end of the driving device is connected with the lifting jig through a steel wire rope.

5. The bearing rotation accuracy measurement auxiliary lifting device as claimed in claim 1, wherein the driving device is a cylinder.

6. The auxiliary lifting device for the bearing rotation precision measurement is characterized by further comprising a solenoid valve and a driving switch, wherein the solenoid valve is connected with an air source pipeline of the air cylinder, and the driving switch is electrically connected with the solenoid valve.