CN205309728U - Traction motor bearing remove device - Google Patents

Abstract

The utility model provides a traction motor bearing remove device, including fluted disc (1), set up on ring tooth dish (1) circumferencial direction a plurality of dogtooth (11), set up between two adjacent dogtooth (11) recess (12). Take out when operation carrying out the traction motor bearing, aim at bearing roller with the recess on the fluted disc earlier to put into the bearing room bottom on the bearing end plate with the fluted disc, then, with the rotatory certain angle of fluted disc, make the dogtooth on the fluted disc hang bearing roller, it is last, exert pressure to the fluted disc, make bearing inner race break away from the bearing room on the bearing end plate. Utilize the utility model discloses can effectively utilize the narrow and small space between bearing and the bearing end plate, simple to operate to take out in can intactly following the bearing room on the bearing end plate with the bearing easily, just whole bearing takes out process safety, reliable, has greatly reduced the bearing and has taken out the degree of difficulty and bearing disability rate, has improved the bearing and has taken out work efficiency.

Description

A kind of traction electric machine bearing removing device

Technical field

This utility model relates to traction electric machine bearing dismantling technical field, especially relates to a kind of traction electric machine bearing removing device.

Background technology

The bearing outer ring of the bearing on existing traction electric machine, bearing roller, retainer link into an integrated entity structure, are connected so that interference fit is fixing between bearing outer ring therein and the bearing chamber on bearing (ball) cover. Owing to the round seam face of bearing (ball) cover is only small to the distance between bearing roller outer round surface, adopting common bearing removing device, for instance copper hammer or copper rod, when being taken out from bearing (ball) cover by bearing outer ring, there are the following problems:

One is, the operation easier of operator is big, and bearing takes out inefficiency, causes that bearing takes out cost high.

Two are, adopt the taking-up mode that bearing is knocked by copper hammer or copper rod more clumsy, be not only easy to damage bearing when taking out operation, and, this mode of knocking also makes bearing take out inefficiency, it is also difficult to intactly taken out from bearing (ball) cover by bearing outer ring.

Three are, if the matching allowance between the bearing chamber on bearing (ball) cover and bearing outer ring is very big, it is accomplished by very big percussion power could be taken out in the bearing chamber bearing (ball) cover by bearing outer ring, in this taking-up process, bearing is easy to damage, even result in bearing to scrap, thus adding the application cost of bearing products.

Utility model content

The technical problems to be solved in the utility model is: for prior art Problems existing, it is provided that a kind of traction electric machine bearing removing device, not only the taking-up process safety, reliable of bearing, and the taking-up work efficiency of bearing is high.

The technical problems to be solved in the utility model realizes by the following technical solutions: a kind of traction electric machine bearing removing device, including fluted disc, arranges several double wedges on ring fluted disc circumferencial direction, arranges groove between two adjacent double wedges.

Preferably, cushion block is also included.

Preferably, described cushion block is hollow ring cylinder.

Preferably, bearing crush injury preventing device is also included.

Preferably, described bearing crush injury preventing device is cotton or spongy body.

Preferably, described fluted disc is T-shaped structure, and the axial width of the double wedge being positioned on fluted disc is less than fluted disc main part axial width.

Preferably, through hole offered by described fluted disc.

Preferably, the end of described double wedge is circular arc transition part.

Preferably, described groove is several, and is circular arc lead-over groove.

Preferably, the center of circle of described groove is positioned on same circumference.

Compared with prior art, the beneficial effects of the utility model are: owing to arranging double wedge, groove on fluted disc, the small space between bearing and bearing (ball) cover can be effectively utilized, easy for installation, as long as fluted disc being installed after putting in place, fluted disc is applied pressure, it is easy with from the bearing chamber bearing (ball) cover, intactly take out bearing outer ring, whole bearing takes out process safety, reliable, significantly reduce bearing and take out difficulty and bearing scrappage, improve bearing and take out work efficiency, save bearing cost.

Accompanying drawing explanation

Fig. 1 is the front view of a kind of traction electric machine bearing removing device of this utility model.

Fig. 2 is the side view of a kind of traction electric machine bearing removing device of this utility model.

Fig. 3 is the flow chart (fluted disc is put into bottom bearing with end cover room) of traction electric machine bearing removing method.

Fig. 4 is the flow chart (fluted disc rotation tangles bearing roller to double wedge) of traction electric machine bearing removing method.

Fig. 5 is the flow chart (fluted disc being applied pressure, make bearing outer ring depart from bearing with end cover room) of traction electric machine bearing removing method.

Labelling in figure: 1-fluted disc, 2-bearing outer ring, 3-bearing roller, 4-retainer, 5-bearing (ball) cover, 6-cushion block, 7-bearing crush injury preventing device, 8-workbench, 11-double wedge, 12-groove, 13-through hole.

Detailed description of the invention

In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with the drawings and specific embodiments, this utility model is described in detail. Should be appreciated that specific embodiment described herein is only in order to explain this utility model, be not used to limit this utility model.

A kind of traction electric machine bearing removing device as shown in Figure 1 and Figure 2, mainly include fluted disc 1, ring fluted disc 1 circumferencial direction arranges several double wedges 11, described double wedge 11 is integrated machine-shaping with fluted disc 1, to improve the bonding strength of double wedge 11, groove 12 is set between two adjacent double wedges 11.

As shown in Fig. 3, Fig. 4, Fig. 5, the bearing outer ring 2 of traction electric machine bearing, bearing roller 3, retainer 4 link into an integrated entity structure, wherein, are connected so that interference fit is fixing between described bearing outer ring 2 and the bearing chamber on bearing (ball) cover 5. In order to bearing is taken out from the bearing chamber bearing (ball) cover 5, it is possible to adopt above-mentioned traction electric machine bearing removing device, and according to following steps, bearing outer ring 2 is intactly taken out from the bearing chamber bearing (ball) cover 5. Specifically:

First, as it is shown on figure 3, by the groove 12 alignment bearings roller 3 on fluted disc 1, and fluted disc 1 is put into bottom the bearing chamber on bearing (ball) cover 5. In order to facilitate the installation of fluted disc 1, and ensure to contact between groove 12 with bearing roller 3 reliably, it is possible to several grooves 12 are designed to circular arc lead-over groove, and the center of circle of groove 12 is respectively positioned on same circumference, as shown in Figure 1.

Then, as shown in Figure 4, fluted disc 1 is rotated to an angle relative to bearing outer ring 2, make the double wedge 11 on fluted disc 1 tangle bearing roller 3. Described fluted disc 1 offers a circular through hole 13, both can realize the loss of weight of fluted disc 1 by arranging through hole 13, and be also convenient for the carrying of fluted disc 1, rotation etc. and operation is installed. The end of described double wedge 11 is designed to circular arc transition part, so can so that contacting between double wedge 11 with bearing roller 3 outer surface be arc surface contact, thus avoiding fluted disc 1 in installing operation, double wedge 11 thereon damages bearing roller 3, advantageously reduces the scrappage taking out bearing.

Finally, as shown in Figure 5, after fluted disc 1 is installed and is put in place, the workbench 8 of hydraulic press or hydraulic pump is placed cushion block 6, again bearing (ball) cover 5 is lifted on cushion block 6, then starts hydraulic press or hydraulic pump so that fluted disc 1 is applied downward pressure, so that bearing outer ring 2 departs from the bearing chamber on bearing (ball) cover 5, and drop down onto on workbench 8, complete the taking-up operation of bearing. Described cushion block 6 can place two pieces, and lays respectively at the opposite sides of bearing chamber on bearing (ball) cover 5; Described cushion block 6 can also adopt hollow ring cylinder, and its hollow bulb is relative with the bearing chamber on bearing (ball) cover 5. The vertical droping space of bearing can be increased, it is ensured that bearing can depart from the bearing chamber on bearing (ball) cover 5 intactly, up hill and dale by arranging cushion block 6.

Fluted disc 1 is being applied in downward press process, in order to prevent being shifted between fluted disc 1 and bearing roller 3, fluted disc 1 can be designed T-shaped structure, the axial width of the double wedge 11 being positioned on fluted disc 1 is less than fluted disc 1 main part axial width, as in figure 2 it is shown, so can so that the lobe of fluted disc 1 extend in the cavity that bearing roller 3 surrounds, simultaneously, also the double wedge 11 on fluted disc 1 is made can to tangle bearing roller 3 better, so that it is guaranteed that bearing takes out the safe and reliable of operation. in order to prevent the bearing after departing from the bearing chamber on bearing (ball) cover 5 from dropping down onto the damage causing bearing on workbench 8, as shown in Figure 5, bearing crush injury preventing device 7 can be placed on the workbench 8 of described hydraulic press or hydraulic pump, described bearing crush injury preventing device 7 can adopt cotton, it can also be spongy body, and, described bearing crush injury preventing device 7 is positioned at immediately below bearing outer ring 2, area shared by it is more than or equal to area shared by bearing outer ring 2, to ensure that the bearing after departing from the bearing chamber on bearing (ball) cover 5 can entirety drop on bearing crush injury preventing device 7, thus avoiding the damage after bearing takes out.

In order to make each bearing roller 3 on bearing can tangle with the double wedge 11 on fluted disc 1, ensure uniform force when bearing takes out, farthest to protect bearing, the concrete structure of described fluted disc 1 can design as follows: determine the number of double wedge 11 on fluted disc 1 according to the concrete number of bearing roller 3, radius according to bearing roller 3 determines the radius Ra of the groove 12 on fluted disc 1, interior circular diameter according to retainer 4 determines the tooth top radius Rb of fluted disc 1, external diameter according to bearing inner race determines the root diameter Φ c of fluted disc 1, the diameter of phi d of place, the center of circle circumference of the groove 12 on fluted disc 1 is determined in distribution according to bearing roller 3, and the thickness f of the double wedge 11 on fluted disc 1 is determined according to the distance between the bearing chamber bottom surface on the top end face of bearing roller 3 to bearing (ball) cover 5, such as Fig. 1, Fig. 2, shown in Fig. 5.Described fluted disc 1 can adopt 45# Steel material to make, not only with low cost, and mechanical strength is reliable.

The foregoing is only preferred embodiment of the present utility model; not in order to limit this utility model; it should be pointed out that, all any amendment, equivalent replacement and improvement etc. made within spirit of the present utility model and principle, should be included within protection domain of the present utility model.

Claims (10)

1. a traction electric machine bearing removing device, it is characterized in that: include fluted disc (1), ring fluted disc (1) circumferencial direction arranges several double wedges (11), groove (12) is set between two adjacent double wedges (11).

2. a kind of traction electric machine bearing removing device according to claim 1, it is characterised in that: also include cushion block (6).

3. a kind of traction electric machine bearing removing device according to claim 2, it is characterised in that: described cushion block (6) is hollow ring cylinder.

4. a kind of traction electric machine bearing removing device according to claim 1, it is characterised in that: also include bearing crush injury preventing device (7).

5. a kind of traction electric machine bearing removing device according to claim 4, it is characterised in that: described bearing crush injury preventing device (7) is cotton or spongy body.

6. a kind of traction electric machine bearing removing device according to any one of claim 1-5, it is characterized in that: described fluted disc (1) is T-shaped structure, the axial width of the double wedge (11) being positioned on fluted disc (1) is less than fluted disc (1) main part axial width.

7. a kind of traction electric machine bearing removing device according to claim 6, it is characterised in that: through hole (13) offered by described fluted disc (1).

8. a kind of traction electric machine bearing removing device according to claim 6, it is characterised in that: the end of described double wedge (11) is circular arc transition part.

9. a kind of traction electric machine bearing removing device according to claim 6, it is characterised in that: described groove (12) is several, and is circular arc lead-over groove.

10. a kind of traction electric machine bearing removing device according to claim 9, it is characterised in that: the center of circle of described groove (12) is positioned on same circumference.