Steel ball crushing load test tool

Abstract

The utility model provides a steel ball crushing load test tool which comprises a clamp body, a containing groove is formed in the side portion of the clamp body, a positioning groove communicated with the containing groove is formed in the bottom of the clamp body, and a first through hole is formed in the top of the clamp body in a penetrating mode. The clamp further comprises a pressure bearing block arranged in the positioning groove, a pressure head block slidably arranged in the first through hole in a penetrating mode and a protective cover arranged on the outer side of the clamp body in a sleeving mode, the pressure bearing block is provided with a first conical groove, the pressure head block is provided with a second conical groove, a plurality of steel balls are vertically arranged between the first conical groove and the second conical groove in an array mode, and steel ball clamping blocks are arranged on the outer sides of the steel balls. According to the steel ball crushing load test tool provided by the utility model, through the clamping cooperation of the first clamping block and the second clamping block in the steel ball clamping blocks, the three steel balls can be located on the same axis more conveniently, and the efficiency of a steel ball crushing load test is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bearing steel ball detection, in particular to a steel ball crushing load test tool. Background Art

[0002] As an important part of ball bearings, steel balls have a great influence on the life, precision, vibration and running characteristics of ball bearings. According to the usage, steel balls roll and slide while bearing external loads during the use of rolling functional components (such as bearings), and are in point contact with the raceway. The compressive stress per unit area is very large, and each point on the contact trajectory between the steel ball and the raceway is cyclically stressed. In order to simulate actual working conditions, national standards stipulate that steel balls must be subjected to crushing load tests. During the crushing load test of steel balls, each group requires three steel balls of the same specifications, which are placed vertically in the test fixture to ensure that the centers of the three steel balls are on the axis of the applied external load, and then the pressure testing machine is used to apply vertical loads to the steel balls as required.

[0003] However, the existing steel ball crushing load test fixture is difficult to ensure that the three balls are on the same axis, which makes the efficiency of the steel ball crushing load test low. This solution solves this technical problem. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a steel ball crushing load test tool.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a steel ball crushing load test tool, including a fixture body, a receiving groove is opened on the side of the fixture body, a positioning groove connected to the receiving groove is arranged at the bottom of the fixture body, and a through hole 1 is penetrated through the top of the fixture body, and also includes a pressure block arranged in the positioning groove, a pressure head block slidably arranged in the through hole 1, and a protective cover sleeved on the outside of the fixture body, the pressure block is provided with a conical groove 1, the pressure head block is provided with a conical groove 2, a plurality of steel balls are arranged in a vertical array between the conical groove 1 and the conical groove 2, and steel ball clamps are arranged on the outside of the plurality of steel balls.

[0006] A boss is arranged on the bottom side of the clamp body, and the protective cover is rotatably arranged on the boss. Two through holes corresponding to the accommodating grooves are arranged on opposite sides of the protective cover.

[0007] The steel ball clamp block includes two clamp blocks one and two which are cooperatively arranged on the outer periphery of the steel balls. The inner sides of the clamp block one and the clamp block two are both provided with V-shaped grooves for accommodating the steel balls, and both sides of the V-shaped grooves are detachably abutted against the side parts of the steel balls.

[0008] The cone angle between the first cone groove and the second cone groove is 90 degrees.

[0009] Grooves are formed on opposite sides of the clamp body.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] (1) A steel ball clamp is provided. Through the clamping cooperation of clamp block 1 and clamp block 2 in the steel ball clamp, it is more convenient to make the three steel balls on the same axis, thereby improving the efficiency of the steel ball crushing load test;

[0012] (2) A protective cover is provided, which is rotatably arranged on the outside of the fixture body. The setting of the protective cover can avoid the splashing of the steel ball during the steel ball crushing load test, thereby improving the safety of the steel ball crushing load test;

[0013] (3) By replacing different types of pressure blocks, pressure head blocks and steel ball clamp blocks, the fixture body can be adapted to the crushing load test of steel balls of different diameters, and the applicability of the steel ball crushing load test fixture is stronger. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0015] Figure 2 It is a schematic diagram of the structural decomposition of the utility model.

[0016] Figure 3 It is a schematic diagram of the cross-sectional structure of the pressure bearing block of the utility model.

[0017] Figure 4 It is a schematic cross-sectional structure diagram of the pressure head block of the utility model.

[0018] Figure 5 It is a structural schematic diagram of a steel ball clamp block of the utility model.

[0019] Among them, in the figure: 1. clamp body; 11. receiving groove; 12. positioning groove; 13. through hole 1; 14. groove; 15. boss; 2. pressure block; 21. conical groove 1; 3. pressure head block; 31. conical groove 2; 4. protective cover; 41. through hole 2; 5. steel ball; 6. steel ball clamp block; 61. clamp block 1; 62. clamp block 2. DETAILED DESCRIPTION

[0020] In order to more clearly illustrate the technical features of this solution, this solution is described below through specific implementation methods.

[0021] See also Figure 1-Figure 5A steel ball crushing load test tool comprises a fixture body 1, a receiving groove 11 is opened on the side of the fixture body 1, a positioning groove 12 connected to the receiving groove 11 is arranged at the bottom of the fixture body 1, a through hole 13 is penetrated at the top of the fixture body 1, and also comprises a pressure block 2 arranged in the positioning groove 12, a pressure head block 3 slidably arranged in the through hole 13, and a protective cover 4 sleeved on the outside of the fixture body 1, the pressure block 2 is provided with a conical groove 1 21, the pressure head block 3 is provided with a conical groove 2 31, a plurality of steel balls 5 are arranged in a vertical array between the conical groove 1 21 and the conical groove 2 31, and a steel ball clamp block 6 is arranged on the outside of the plurality of steel balls 5.

[0022] A boss 15 is disposed on the bottom side of the clamp body 1 , and the protective cover 4 is rotatably disposed on the boss 15 . Two through holes 41 corresponding to the receiving grooves 11 are formed on opposite sides of the protective cover 4 .

[0023] The steel ball clamp block 6 includes two clamp blocks 1 61 and 62 which are cooperatively arranged on the periphery of a plurality of steel balls 5. The inner sides of the clamp blocks 1 61 and 62 are both provided with V-shaped grooves for accommodating the steel balls 5, and both sides of the V-shaped grooves are detachably abutted against the sides of the steel balls 5.

[0024] The cone angle between the first cone groove 21 and the second cone groove 31 is 90 degrees.

[0025] Grooves 14 are formed on opposite sides of the clamp body 1 .

[0026] The specific working process of this utility model:

[0027] When in use, first place the fixture body 1 on the pressure testing machine, then put the protective cover 4 on the fixture body 1, so that the through hole 2 41 of the protective cover 4 is connected with the receiving groove 11 of the fixture body 1, then place the pressure head block 3 of the corresponding specification in the positioning groove 12 of the fixture body 1, place the clamping block 1 61 and the clamping block 2 62 of the steel ball clamping block 6 on the pressure head block 3, and place the three steel balls 5 in the conical groove 1 21 of the pressure bearing block 2 in sequence, and then clamp the three steel balls 5 together by clamping block 1 61 and clamping block 2 62. Constrained by clamping block 1 61 and clamping block 2 62, the three steel balls 5 are on the same vertical axis, and finally insert the pressure head block 3 into the through hole 13 so that the top steel ball 5 is aligned with the pressure head. The first clamp block 61 and the second clamp block 62 are in contact with the conical groove 31 of the block 3. At this time, the clamp block 1 61 and the second clamp block 62 are slowly separated from the three steel balls 5, and the clamp block 1 61 and the second clamp block 62 are respectively taken out from the receiving groove 11 of the clamp body 1, and finally the protective cover 4 is rotated to isolate the steel balls 5 in the receiving groove 11 from the external environment, and finally the pressure testing machine is started, and the pressure testing machine is pressed on the pressure head block 3, so that the pressure head block 3 applies pressure to the three steel balls 5. The pressure reading of the pressure testing machine when the steel balls 5 are crushed is used to detect whether the steel balls 5 meet the requirements. After the steel ball crushing load test is completed, the protective cover 4 is screwed, and the crushed steel balls 5 are cleaned and taken out through the through hole 2 41, and finally the clamp body 1 is removed from the pressure testing machine.

[0028] Since the steel ball clamp block 6 is provided, through the clamping cooperation of the clamp block 1 61 and the clamp block 2 62 in the steel ball clamp block 6, it is more convenient to make the three steel balls 5 on the same axis, thereby improving the efficiency of placing the steel balls 5 and further improving the efficiency of the steel ball crushing load test;

[0029] A protective cover 4 is provided, and the protective cover 4 is provided with a second through hole 41. The protective cover 4 is rotatably arranged outside the fixture body 1. Through the arrangement of the protective cover 4, when the steel ball 5 is subjected to the crushing load test, the splashing of the steel ball 5 is avoided, thereby improving the safety of the crushing load test of the steel ball 5.

[0030] The clamp body 1 is provided with grooves 14 . Through the provision of the grooves 14 , the clamp body 1 can be clamped in two grooves 14 , making it more convenient to carry the clamp body 1 .

[0031] According to the different diameters of the steel ball 5, different types of pressure blocks 2, pressure head blocks 3 and steel ball clamping blocks 6 can be replaced, so that the sizes of the conical groove 21 of the pressure block 2, the conical groove 31 of the pressure head block 3, and the V-grooves of clamping blocks 1 61 and clamping blocks 2 62 are adapted to the steel ball 5. By replacing different types of pressure blocks 2, pressure head blocks 3 and steel ball clamping blocks 6, the fixture body 1 can be adapted to the crushing load test of steel balls 5 with different diameters, and the applicability of the steel ball crushing load test tooling is stronger.

[0032] Technical features not described in the present invention can be achieved through or by adopting existing technologies, and will not be elaborated here. Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present invention should also fall within the scope of protection of the present invention.

Claims

1. A steel ball crushing load test fixture, comprising a fixture body (1), characterized in that: The side of the clamp body (1) is provided with a receiving groove (11), the bottom of the clamp body (1) is provided with a positioning groove (12) connected to the receiving groove (11), the top of the clamp body (1) is provided with a through hole (13), and also includes a pressure block (2) arranged in the positioning groove (12), a pressure head block (3) slidably arranged in the through hole (13), and a protective cover (4) sleeved on the outside of the clamp body (1), the pressure block (2) is provided with a conical groove (21), the pressure head block (3) is provided with a conical groove (31), a plurality of steel balls (5) are arranged in a vertical array between the conical groove (21) and the conical groove (31), and a steel ball clamp block (6) is arranged on the outside of the plurality of steel balls (5).

2. The steel ball crushing load test tool according to claim 1, characterized in that: A boss (15) is provided on the bottom side of the clamp body (1), the protective cover (4) is rotatably disposed on the boss (15), and two through holes (41) corresponding to the accommodating groove (11) are provided on opposite sides of the protective cover (4).

3. The steel ball crushing load test tool according to claim 2, characterized in that: The steel ball clamp block (6) comprises two clamp blocks (61) and (62) which are arranged on the outer periphery of the plurality of steel balls (5), and the inner sides of the clamp blocks (61) and (62) are each provided with a V-shaped groove for accommodating the steel balls (5), and both sides of the V-shaped groove are detachably abutted against the side of the steel balls (5).

4. The steel ball crushing load test tool according to claim 3, characterized in that: The cone angle between the first conical groove (21) and the second conical groove (31) is 90 degrees.

5. The steel ball crushing load test tool according to claim 4, characterized in that: Grooves (14) are provided on opposite sides of the clamp body (1).

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