CN209542107U

CN209542107U - A kind of fatigue life test machine tooling

Info

Publication number: CN209542107U
Application number: CN201920008358.7U
Authority: CN
Inventors: 张天浩; 杨清
Original assignee: SHANGHAI ZHENHUA BEARING WORKS CO Ltd
Current assignee: SHANGHAI ZHENHUA BEARING WORKS CO Ltd
Priority date: 2019-01-03
Filing date: 2019-01-03
Publication date: 2019-10-25
Anticipated expiration: 2029-01-03

Abstract

The utility model relates to tooling technical fields, specifically a kind of fatigue life test machine tooling, it is made of the axis top locknut, first bearing, the first spacer ring, second bearing, the second spacer ring, 3rd bearing, third spacer ring, fourth bearing and the shaft end locknut that are sequentially sleeved on test axis, in which: the tip side of axis top locknut towards test axis forms a circle protrusion.The utility model has the beneficial effects that cancelling the intermediate step being originally arranged on test axis, substituted with the second spacer ring, reduces test axis difficulty of processing, improve precision.

Description

A kind of fatigue life test machine tooling

Technical field

The utility model relates to tooling technical field, specifically a kind of fatigue life test machine tooling.

Background technique

As shown in Figure 1, when carrying out each model bearing test, four sets of bearings assemble width a since testing machine structure is limited It is fixed with the value of intermediate two sets of bearings assembly width b.When testing larger model bearing, the two sets of bearing spacing c in centre are too small, lead Provision for disengagement is caused to be difficult to be caught between two stripping rings and (if provision for disengagement is excessively thin, enough pressure can not be provided and extrude bearing).

Utility model content

The purpose of the utility model is to overcome the deficiencies in the prior art, provide a kind of above-mentioned testing machine work solved the problems, such as Dress.

In order to achieve the above object, the utility model provides a kind of fatigue life test machine tooling, by being sequentially sleeved at Test axis on axis top locknut, first bearing, the first spacer ring, second bearing, the second spacer ring, 3rd bearing, third every Circle, fourth bearing and shaft end locknut composition, in which:

The tip side of axis top locknut towards test axis forms a circle protrusion；

The tail end-side of the shaft end locknut towards test axis forms a circle protrusion, the shape of the shaft end locknut Size is identical as axis top locknut；

The first bearing, second bearing, the geomery of 3rd bearing and fourth bearing are all the same；

The first bearing, the first spacer ring, second bearing, the second spacer ring, 3rd bearing, third spacer ring and fourth bearing It is interior through identical

The geomery of first spacer ring and third spacer ring is identical, the thickness of the thickness < first bearing of first spacer ring Degree, the outer diameter of the outer diameter < first bearing of first spacer ring；

The thickness of the second spacer ring of thickness < of first spacer ring；

The two sides up and down of second spacer ring form parallel section.

Preferably, the height of second spacer ring is identical as the outer diameter of the first spacer ring.

Preferably, handle is all evenly equipped on first spacer ring, the second spacer ring and third spacer ring.

The handle goes out convenient for the first spacer ring, the second spacer ring and third spacer ring from the test any one side pressure of axis.

The utility model has the beneficial effects that

1, cancel the intermediate step being originally arranged on test axis, substituted with the second spacer ring, reduce test axis difficulty of processing, Improve precision；

2, first bearing, second bearing, 3rd bearing and fourth bearing can go out from the test any one side pressure of axis, improve Dismantle convenience and operability；

3, the end face outside of axis top locknut and shaft end locknut is higher by the shaft shoulder when installing bearing, can meet Installing positions of bearings requirement, can normal assays.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of existing fatigue life test machine tooling；

Fig. 2 is the structural schematic diagram of the utility model；

Fig. 3 is the schematic diagram of the second spacer ring in the utility model.

Wherein:

21- axis top locknut 31- first bearing the first spacer ring of 41-

32- second bearing 42- the second spacer ring the second spacer ring of 33-

34 1 fourth bearing 22- shaft end locknut of 43- third spacer ring

Specific embodiment

Below in conjunction with the drawings and specific embodiments, the utility model is described further.

Embodiment 1:

A kind of fatigue life test machine tooling as shown in Figs. 1-3, by the axis top tightening being sequentially sleeved on test axis Nut 21, first bearing 31, the first spacer ring 41, second bearing 32, the second spacer ring 42, the second spacer ring 33, third spacer ring the 43, the 4th Bearing 34 and shaft end locknut 22 form, in which:

The tip side of axis top locknut 21 towards test axis forms a circle protrusion；

The tail end-side of the shaft end locknut 22 towards test axis forms a circle protrusion, the shaft end locknut 22 Geomery is identical as axis top locknut 21；

The first bearing 31, second bearing 32, the geomery of 3rd bearing 33 and fourth bearing 34 are all the same；

The first bearing 31, the first spacer ring 41, second bearing 32, the second spacer ring 42,3rd bearing 33, third spacer ring 43 And fourth bearing 34 is interior through identical

The geomery of first spacer ring 41 and third spacer ring 43 is identical, the thickness < first bearing of first spacer ring 41 31 thickness, the outer diameter of the outer diameter < first bearing 31 of first spacer ring 41；

The thickness of the second spacer ring of thickness < 42 of first spacer ring 41；

The two sides up and down of second spacer ring 42 form parallel section.

The height of second spacer ring 42 is identical as the outer diameter of the first spacer ring 41.

Handle is all evenly equipped on first spacer ring 41, the second spacer ring 42 and third spacer ring 43.

The preferred embodiment created to the utility model above is illustrated, but the utility model is created not It is limited to the embodiment described, those skilled in the art can be under the premise of without prejudice to the utility model creative spirit Various equivalent variation or replacement are made, these equivalent modifications or replacement are all contained in model defined by the claim of this application In enclosing.

Claims

1. a kind of fatigue life test machine tooling, which is characterized in that by the axis top locknut being sequentially sleeved on test axis (21), first bearing (31), the first spacer ring (41), second bearing (32), the second spacer ring (42), 3rd bearing (33), third every Enclose (43), fourth bearing (34) and shaft end locknut (22) composition, in which:

The tip side of axis top locknut (21) towards test axis forms a circle protrusion；

The tail end-side of the shaft end locknut (22) towards test axis forms a circle protrusion, the shaft end locknut (22) Geomery is identical as axis top locknut (21)；

The first bearing (31), second bearing (32), the geomery of 3rd bearing (33) and fourth bearing (34) are all the same；

The first bearing (31), the first spacer ring (41), second bearing (32), the second spacer ring (42), 3rd bearing (33), third Spacer ring (43) and fourth bearing (34) it is interior through identical

The geomery of first spacer ring (41) and third spacer ring (43) is identical, the thickness < first axle of first spacer ring (41) The thickness of (31) is held, the outer diameter of the outer diameter < first bearing (31) of first spacer ring (41)；

The thickness of the second spacer ring of thickness < (42) of first spacer ring (41)；

The two sides up and down of second spacer ring (42) form parallel section.

2. fatigue life test machine tooling according to claim 1, which is characterized in that the height of second spacer ring (42) It spends identical as the outer diameter of the first spacer ring (41).

3. fatigue life test machine tooling according to claim 1, which is characterized in that first spacer ring (41), Handle is all evenly equipped on two spacer rings (42) and third spacer ring (43).