Device for detecting crushing force of retainer

Abstract

The utility model discloses a device for detecting crushing force of a retainer, which comprises a lower detection tool and an upper detection tool arranged above the lower detection tool. A through groove hole is formed in the center position in the lower detection tool, and the through groove hole is of a three-petal-shaped structure and penetrates through the upper end and the lower end of the lower detection tool. The center position of the bottom end of the upper detection tool is fixedly connected to the upper end of the sleeving sliding shaft. According to the device for detecting the crushing force of the retainer, the ball cage retainer is installed and limited through the lower detection tool and the upper detection tool, and the guide steel balls are positioned through the main steel ball positioning groove and the auxiliary steel ball positioning groove which are formed up and down, so that the stability when the lower detection tool and the upper detection tool are combined is ensured; therefore, crushing force detection can be carried out on the ball cage holder and the guide steel balls outside the ball cage holder.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of retainer detection, in particular to a device for detecting the crushing force of a retainer. BACKGROUND

[0002] The retainer is also called a bearing retainer. When a rolling bearing rotates at high speed under complex load, the retainer bears large centrifugal force, impact and vibration, and there is large sliding friction between the retainer and the rolling elements, which generates a large amount of heat. Therefore, it is necessary to detect the pressure resistance of the retainer and the internal balls.

[0003] However, the existing retainers and their internal steel balls are mostly subjected to pressure detection on individual components before assembly during the detection process. This detection method is complicated and inefficient, and cannot perform overall strength test verification on the retainer. There are defects in the quality analysis of the product. The internal steel balls of the same retainer cannot be positioned and detected during pressure detection, resulting in poor universality, low efficiency and complex structure.

[0004] Therefore, we propose a device for detecting the crushing force of a retainer to solve the problems mentioned above. CONTENT OF THE UTILITY MODEL

[0005] The utility model aims to provide a device for detecting the crushing force of a retainer to solve the problems that the existing retainers and their internal steel balls are mostly subjected to pressure detection on individual components before assembly during the detection process. This detection method is complicated and inefficient, and cannot perform overall strength test verification on the retainer. There are defects in the quality analysis of the product. The internal steel balls of the same retainer cannot be positioned and detected during pressure detection, resulting in poor universality, low efficiency and complex structure.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a device for detecting the crushing force of a retainer, comprising a lower detection tool and an upper detection tool arranged above the lower detection tool; further comprising:

[0007] A through slot is formed at the inner central position of the lower detection tool, and the through slot has a three-petal structure to penetrate the upper and lower ends of the lower detection tool.

[0008] The bottom end of the upper detection tool is fixedly connected to the upper end of the sleeve sliding shaft.

[0009] Preferably, the lower detection tool and the through slot formed therein are combined to form an inner hollow cylindrical structure, and a main ball positioning groove is formed at the same angle above the inner portion of the lower detection tool.

[0010] Preferably, the equiangularly arranged main steel ball positioning grooves and the three-petal-shaped structure of the through groove in the lower detection tool are arranged in an interleaved manner, and the lower detection tool is inserted and locked with the bottom end of the sleeve sliding shaft on the bottom surface of the upper detection tool through the through groove.

[0011] Preferably, after the upper detection tool is inserted into the through groove in the lower detection tool through the sleeve sliding shaft, the upper detection tool and the sleeve sliding shaft are arranged in a vertical coaxial concentric structure.

[0012] Preferably, the inner side of the bottom surface of the upper detection tool is equiangularly provided with a secondary steel ball positioning groove, and the equiangularly arranged secondary steel ball positioning groove and the main steel ball positioning groove are arranged in a corresponding manner, and the corresponding secondary steel ball positioning groove and the main steel ball positioning groove form a whole spherical positioning cavity.

[0013] Preferably, a retainer mounting groove is arranged at the center position of the bottom surface of the upper detection tool, and the ball cage retainer is mounted and limited by the retainer mounting groove on the bottom surface of the upper detection tool, and the outer side of the ball cage retainer is equiangularly provided with a guide steel ball.

[0014] Preferably, the guide steel balls equiangularly arranged on the outer side of the ball cage retainer are limited in the secondary steel ball positioning groove arranged in the upper detection tool, and the remaining guide steel balls of the ball cage retainer are slidingly arranged in the gap on the side of the upper detection tool to prevent affecting the crushing detection.

[0015] Compared with the prior art, the device has the advantages that: the lower detection tool and the upper detection tool are used to mount and limit the ball cage retainer, the guide steel balls are positioned through the equiangularly arranged main steel ball positioning groove and secondary steel ball positioning groove, and the stability of the lower detection tool and the upper detection tool when combined is ensured, and the specific content is as follows:

[0016] 1. The ball cage retainer is arranged outside the sleeve sliding shaft at the bottom end of the upper detection tool through the through hole in the middle, so as to be positioned through the retainer mounting groove, and the equiangularly arranged guide steel balls on the outer side of the ball cage retainer are placed in the secondary steel ball positioning groove arranged on the bottom surface of the upper detection tool,

[0017] Further, the remaining steel balls are arranged in the gap on the outer side of the upper detection tool, so as to ensure that the upper detection tool and the lower detection tool will not be dislocated due to the interference of the guide steel balls when combined.

[0018] 2. The upper detection tool is inserted into the through slot hole opened in the lower detection tool 1 through the sleeve sliding shaft fixedly arranged at the bottom end, so that the lower detection tool is limited through the through slot hole opened in the inside for the sleeve sliding shaft and the upper detection tool, and the stability when the lower detection tool and the upper detection tool are combined is ensured.

[0019] Further, the bottom surface of the ball cage retainer is in contact with the top end of the lower detection tool, and the lower part of the guide steel ball enters the inside of the main steel ball positioning groove, so that the steel ball is wrapped and limited through the upper and lower direction auxiliary steel ball positioning groove and the main steel ball positioning groove, and the crushing force detection is carried out on the ball cage retainer and the guide steel ball outside the ball cage retainer through the pressure of the lower detection tool and the upper detection tool. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a whole three-dimensional structure schematic view of the utility model;

[0021] Figure 2 It is a through slot hole three-dimensional structure schematic view of the utility model;

[0022] Figure 3 It is a main steel ball positioning groove opening structure schematic view of the utility model;

[0023] Figure 4 It is a ball cage retainer installed structure schematic view of the utility model;

[0024] Figure 5 It is an auxiliary steel ball positioning groove opening structure schematic view of the utility model;

[0025] Figure 6 It is a through slot hole opening structure schematic view of the utility model.

[0026] In the figure: 1, lower detection tool; 2, upper detection tool; 3, through slot hole; 4, sleeve sliding shaft; 5, main steel ball positioning groove; 6, auxiliary steel ball positioning groove; 7, retainer installation groove; 8, ball cage retainer; 9, guide steel ball. DETAILED DESCRIPTION

[0027] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0028] Please refer to Figures 1-6 The utility model provides the following technical scheme:

[0029] The embodiment 1 aims at solving the problems of the existing crushing detection device in use, and discloses a device for detecting the crushing force of a retainer, which comprises a lower detection tool 1 and an upper detection tool 2 arranged above the lower detection tool 1.

[0030] A retainer mounting groove 7 is arranged at the center of the bottom surface of the upper detection tool 2, the ball cage retainer 8 is mounted and limited by the retainer mounting groove 7 of the bottom surface of the upper detection tool 2, and guide steel balls 9 are arranged at equal angles on the outer side of the ball cage retainer 8.

[0031] As shown in Figure 1 , Figure 4 When the ball cage retainer 8 needs to be mounted and positioned, the ball cage retainer 8 is first sleeved on the outside of the sleeve sliding shaft 4 at the bottom end of the upper detection tool 2 through the through hole in the middle, so as to be positioned by the retainer mounting groove 7, the outer guide steel balls 9 of the ball cage retainer 8 are placed in the auxiliary steel ball positioning groove 6 arranged on the bottom surface of the upper detection tool 2 by manually sliding the ball cage retainer 8, and the remaining guide steel balls 9 are distributed on the gap outside the upper detection tool 2, so as to ensure that the upper detection tool 2 and the lower detection tool 1 are not dislocated due to the interference of the guide steel balls 9 when they are combined.

[0032] The embodiment 2 aims at solving the problems of the existing crushing detection device in use, and discloses a device for detecting the crushing force of a retainer, which comprises a lower detection tool 1 and an upper detection tool 2 arranged above the lower detection tool 1.

[0033] The equiangularly arranged main steel ball positioning groove 5 and the three-petal-shaped structure between the through groove 3 arranged in the lower detection tool 1 are arranged in an interlaced manner, and the lower detection tool 1 is inserted and locked with the bottom end of the sleeve sliding shaft 4 on the bottom surface of the upper detection tool 2 through the through groove 3 arranged in the lower detection tool 1; after the upper detection tool 2 is inserted into the through groove 3 arranged in the lower detection tool 1 through the sleeve sliding shaft 4, the upper detection tool 2 and the sleeve sliding shaft 4 are arranged in a vertical coaxial concentric structure; and the equiangularly arranged auxiliary steel ball positioning groove 6 and the main steel ball positioning groove 5 are arranged in a corresponding manner, and the auxiliary steel ball positioning groove 6 and the main steel ball positioning groove 5 correspondingly form a whole spherical positioning cavity.

[0034] As shown in Figure 1 、 Figure 3 、 Figure 6 When the slide ball cage holder 8 is installed at the bottom end of the upper detection tool 2, the sleeve sliding shaft 4 fixedly arranged at the bottom end of the upper detection tool 2 is inserted into the through groove 3 arranged in the lower detection tool 1, so that the lower detection tool 1 limits the sleeve sliding shaft 4 and the upper detection tool 2 through the through groove 3 arranged in the lower detection tool 1, thereby ensuring the stability of the lower detection tool 1 and the upper detection tool 2 when they are combined, and then when the bottom surface of the ball cage holder 8 contacts the top end of the lower detection tool 1, the lower half of the guide steel ball 9 limited in the auxiliary steel ball positioning groove 6 enters the main steel ball positioning groove 5, so as to wrap and limit the guide steel ball 9 through the auxiliary steel ball positioning groove 6 and the main steel ball positioning groove 5 in the upward and downward directions, and the ball cage holder 8 and the guide steel ball 9 outside the ball cage holder 8 are subjected to crushing force detection through the pressing of the lower detection tool 1 and the upper detection tool 2.

[0035] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A device for detecting the crushing force of a retainer, comprising a lower detection tool (1) and an upper detection tool (2) arranged above the lower detection tool (1); It is characterized by: Also includes: A through slot (3) is provided at the inner center of the lower detection tooling (1), and the through slot (3) is in a three-petal structure and penetrates the upper and lower ends of the lower detection tooling (1); The center position of the bottom end of the upper detection tooling (2) is fixedly connected to the upper end of the sleeve sliding shaft (4).

2. The device for detecting the crushing force of a retainer according to claim 1, characterized in that: The overall lower detection fixture (1) and the through slot (3) opened inside are combined to form a hollow cylindrical structure, and main steel ball positioning grooves (5) are opened at equal angles on the upper part of the lower detection fixture (1).

3. The device for detecting the crushing force of a retainer according to claim 2, characterized in that: The main steel ball positioning grooves (5) opened at equal angles and the three-petal structure of the through slots (3) opened inside the lower detection tooling (1) are staggered and arranged, and the lower detection tooling (1) inserts and locks the bottom end of the sliding shaft (4) on the bottom surface of the upper detection tooling (2) through the through slots (3) opened inside.

4. The device for detecting the crushing force of a retainer according to claim 1, characterized in that: After the upper detection tooling (2) is inserted into the through slot (3) provided inside the lower detection tooling (1) via the sleeve sliding shaft (4), the upper detection tooling (2) and the sleeve sliding shaft (4) are arranged in a vertically coaxial and concentric structural distribution.

5. The device for detecting the crushing force of a retainer according to claim 4, characterized in that: Auxiliary steel ball positioning grooves (6) are provided at equal angles on the inner side of the bottom surface of the upper detection tool (2), and the auxiliary steel ball positioning grooves (6) provided at equal angles are arranged in a corresponding distribution with the main steel ball positioning grooves (5), and the corresponding auxiliary steel ball positioning grooves (6) and the main steel ball positioning grooves (5) are combined to form a whole spherical positioning cavity.

6. The device for detecting the crushing force of a retainer according to claim 5, characterized in that: A retainer mounting groove (7) is provided at the center of the bottom surface of the upper detection tool (2), and the upper detection tool (2) is used to position the ball cage retainer (8) through the retainer mounting groove (7) on the bottom surface, and guide steel balls (9) are provided at equal angles on the outer side of the ball cage retainer (8).

7. The device for detecting the crushing force of a retainer according to claim 6, characterized in that: The guide steel balls (9) arranged at equal angles on the outside of the ball cage holder (8) are limited in the auxiliary steel ball positioning groove (6) opened inside the upper detection tooling (2), and the remaining guide steel balls (9) of the ball cage holder (8) are slidably arranged in the gap on the side of the upper detection tooling (2) to prevent affecting the crushing detection.

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