CN202934526U

CN202934526U - Device for assembling part on shaft

Info

Publication number: CN202934526U
Application number: CN 201220505318
Authority: CN
Inventors: 杨乐; 王益博; 康鹏; 孟忠
Original assignee: China XD Electric Co Ltd
Current assignee: China XD Electric Co Ltd
Priority date: 2012-09-28
Filing date: 2012-09-28
Publication date: 2013-05-15
Anticipated expiration: 2022-09-28

Abstract

The utility model discloses a device for assembling a part on a shaft. The device comprises a screw, a rotary cover and a sleeve, wherein one end of the screw is assembled in a threaded hole in the end face of the shaft; the part is sleeved on the shaft; one side of the part is in contact with one end of the sleeve; the other end of the sleeve is in a step shape, is sleeved on an outer ring of a bearing and is in contact with the end face of the outer ring; an inner ring of the bearing is arranged on the rotary cover; the rotary cover is sleeved on the screw; and a first nut which is close to the rotary cover is in threaded connection on the screw. By the device, large impact loads generated during the assembly of the part can be converted into uniform pressure assembling force, so that the damage of a hammer in the conventional assembly mode to the surface of the part is avoided, the labor intensity of workers is reduced, and the assembly efficiency and assembly quality are improved; and considering the habits and dependence of assembly personnel on the conventional tool, a using mode of combining the device with the conventional wrench tool, so that the humanized design of the device is embodied.

Description

A kind of on axle the device of Assembly part

Technical field

The utility model relates to mechanical assembling field, particularly a kind of on axle the device of Assembly part.

Background technology

Machinery assembling field, assembling is a kind of very general situation with connecting lever, sleeve part on axle, the workman is when the axial workpiece of some interference fit of assembling, dual mode is arranged usually, a kind of is that the part that will assemble is taken and is pressed on axle on forcing press, another kind of mode is to utilize sleeve part to be pounded on axle with hammer as instrument, for first kind of way, it is suitable for the part that the less workman of some quality can move it, if run into the part that some volumes are large, be difficult to movement, this kind mode wastes time and energy.The second assembling mode requires the workman that certain assembling technical ability and proficiency to work will be arranged, and this kind assembling mode consumes one's strength, and is difficult to also guarantee simultaneously that the workman can not cause damage to piece surface in operation.

The utility model content

The purpose of this utility model be to provide a kind of on axle the device of Assembly part, assembling process wastes time and energy and assembling process causes the problem of damage to part to solve.

In order to achieve the above object, the technical solution adopted in the utility model is as follows:

A kind of on axle the device of Assembly part, comprise screw rod, swivelling cover and sleeve; Screw rod one end is assemblied in the screwed hole of axial end; On axle, cover has part, part one side and sleeve one end in contact, and the sleeve other end is stairstepping, is placed on the outer ring of bearing and contacts the end face of outer ring; The inner ring of bearing is arranged on swivelling cover, and swivelling cover is placed on screw rod, the first nut that is threaded on screw rod and reclines with swivelling cover.

The utility model further improves and is: axle is provided with the first keyway, in the first keyway, key is installed, and part is provided with the second keyway with the key interference fit.

The utility model further improves and is: part is connecting lever.

With respect to prior art, the advantage that the utlity model has is: the utility model device can make larger shock loading change pressure assembling force comparatively uniformly into, thereby solves the damage that in traditional assembling mode, hammer carries out zero layer; The labour intensity that has also alleviated simultaneously the workman has increased efficiency of assembling and quality; Considered custom and the dependence of assembly crewman to conventional tool, the utility model has adopted the occupation mode of being combined with the conventional spanner instrument also to embody the design of its hommization.

Description of drawings

Fig. 1 is that the utility model duty is partly cutd open figure;

Wherein: 1, key; 2, the second nut; 3, sleeve; 4, bearing; 5, swivelling cover; 6, the first nut; 7, screw rod; 8, part; 9, axle.

The specific embodiment

Below in conjunction with accompanying drawing, the utility model device is described further.

Shown in Figure 1, a kind of on axle the device of Assembly part, comprise screw rod 7, swivelling cover 5 and sleeve 3, screw rod 7 one ends are assemblied in the screwed hole of axle 9 end faces, on axle 9, cover has part 8, part 8 one sides and vertical contact of sleeve 3 one ends, sleeve 3 other ends are stairstepping, are placed on the outer ring of bearing 4 and the end face of contact outer ring; The inner ring of bearing 4 is arranged on swivelling cover 5, and swivelling cover 5 is placed on screw rod 7, the first nut 6 that is threaded on screw rod 7 and reclines with swivelling cover 5; Key 1 is installed in the keyway of axle 9.

the course of work of the present utility model is achieved in that screw rod 7 is assembled in the screwed hole of axle 9 end faces, and fixing with the second nut 2, be inserted in part 8 on screw rod 7, then remaining sleeve 3 is installed, bearing 4 and swivelling cover 5, then first nut 6 of packing on screw rod 7, by the first nut 6 on ratchet spanner or electric wrench rotary screw, the first nut 6 heads on swivelling cover 5 promotion sleeves 3 and moves to the direction that nut advances, sleeve 3 top parts 8 move to the direction that nut advances, key 1 is embedded in the keyway of part 8, so that part 8 is assemblied on axle 9, realize the interference fit of part 8 and axle 9.This device mainly utilizes the principle of the arm of force, and the power of ratchet spanner or electric wrench was applied on part by nut and coordinating of sleeve, plays the vast effect of little power of similar jack, has solved some undesirable places of present assembling.

The utility model in the time of can making Assembly part larger shock loading change comparatively pressure assembling force uniformly into, thereby solve the damage that in traditional assembling mode, hammer carries out zero layer; The labour intensity that has also alleviated simultaneously the workman has increased efficiency of assembling and quality; Considered custom and the dependence of assembly crewman to conventional tool, the utility model has adopted the occupation mode of being combined with the conventional spanner instrument also to embody the design of its hommization.

Claims

1. the device of an Assembly part on axle, is characterized in that, comprises screw rod (7), swivelling cover (5) and sleeve (3); Screw rod (7) one ends are assemblied in the screwed hole of axle (9) end face; The upper cover of axle (9) has part (8), part (8) one sides and sleeve (3) one end in contact, and sleeve (3) other end is stairstepping, is placed on the outer ring of bearing (4) and contacts the end face of outer ring; The inner ring of bearing (4) is arranged on swivelling cover (5), and swivelling cover (5) is placed on screw rod (7), the first nut (6) that is threaded on screw rod (7) and reclines with swivelling cover (5).

According to claim 1 a kind of on axle the device of Assembly part, it is characterized in that, axle (9) is provided with the first keyway, and key (1) is installed in the first keyway, part (8) is provided with the second keyway with key (1) interference fit.

According to claim 1 a kind of on axle the device of Assembly part, it is characterized in that, part (8) is connecting lever.