Depth detection device for quenching layer of slewing bearing raceway

Abstract

The utility model discloses a slewing bearing raceway quenching layer depth detection device which comprises a Brinell hardness tester, a strip-shaped hole is formed in the middle of the side face of the Brinell hardness tester, a mounting frame is arranged in the strip-shaped hole in a sliding mode, a fixing shaft is arranged on the mounting frame, a supporting block is arranged in the middle of the fixing shaft in a rotating mode, and the supporting block is connected with the strip-shaped hole in a sliding mode. And a supporting piece for adjusting the height of the supporting block and supporting the supporting block is arranged at the lower end of the Brinell hardness tester. According to the slewing bearing raceway quenching layer depth detection device, the adjustable supporting blocks are matched with the adjustable rollers, an inner ferrule and an outer ferrule of a slewing bearing can be supported, limited and fixed, the raceway hardness of the slewing bearing can be detected, the raceway quenching layer depth of the slewing bearing can be detected, operation is easy, and use is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of slewing bearing detection, in particular to a slewing bearing raceway quenching layer depth detection device. Background Art

[0002] The slewing bearing has an inner ring and an outer ring, and there is a raceway between the inner and outer rings. The raceway is the weakest link in the entire slewing bearing. Usually, the raceway is quenched to a corresponding depth and hardness to resist wear and prevent the raceway from peeling. In order to ensure the performance of the raceway, it is necessary to remember and test the depth of the quenching layer of the raceway on the inner ring and the outer ring to ensure the quality of the slewing bearing.

[0003] Commonly used methods for testing the depth of the quenching layer include metallographic analysis, hardness testing, and corrosion testing. Among them, the hardness testing method determines the depth of the quenching layer by measuring the change in surface hardness; during the test, a hardness tester and other equipment are usually used, which are placed on the sample surface, a certain pressure is applied, and then the hardness value is read. According to the conditions of different materials, combined with the hardness-depth curve, the quenching layer depth is calculated.

[0004] When using the Brinell hardness tester for measurement, the sample needs to be placed on a placement table, and then the height of the table is adjusted to adjust the sample height, and then a measurement position is selected to apply a load for measurement; however, when measuring the depth of the quenching layer of the slewing bearing raceway, the raceway of the inner ring is on the outer circumference, and the raceway of the outer ring is on the inner circumference; and the existing placement table cannot support and fix the annular inner ring and outer ring, resulting in the inability to detect the raceway hardness, and therefore the inability to detect the quenching layer depth, which is inconvenient to use. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the existing defects and provide a slewing bearing raceway quenching layer depth detection device, which adopts an adjustable support block and an adjustable roller to support and limit the inner ring and the outer ring of the slewing bearing, and can detect the raceway hardness, thereby detecting the raceway quenching layer depth. The operation is simple and easy to use, and the problems in the background technology can be effectively solved.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a slewing bearing raceway quenching layer depth detection device, comprising a Brinell hardness tester, a strip hole is opened in the middle of the side of the Brinell hardness tester, and a mounting frame is slidably arranged inside the strip hole, a fixed shaft is arranged on the mounting frame, a support block is rotatably arranged in the middle of the fixed shaft, and a support member for adjusting the height of the support block and supporting it is arranged at the lower end of the Brinell hardness tester.

[0007] As a preferred technical solution of the utility model, the support member includes a hydraulic cylinder, a support frame is provided on the top of the hydraulic cylinder, two symmetrically arranged positioning columns are provided on the top of the support frame, and positioning grooves corresponding to the positioning columns are provided on the top and bottom of the support block.

[0008] As a preferred technical solution of the present utility model, the top of the support block is an arc-shaped structure.

[0009] As a preferred technical solution of the utility model, both ends of the fixed shaft are provided with fixed seats, a telescopic rod is installed on the fixed seat, and a rotatable roller is installed on the top of the telescopic rod for limiting support of the inner sleeve and outer ring of the slewing bearing.

[0010] As a preferred technical solution of the utility model, the telescopic rod includes a threaded barrel, the internal thread of the threaded barrel is connected to a screw rod, and the roller is rotatably arranged on the top of the screw rod.

[0011] As a preferred technical solution of the utility model, a threaded hole is provided at a portion of the fixing seat corresponding to the threaded barrel, and the threaded barrel is installed in the threaded hole through a threaded connection.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The slewing bearing raceway quenching layer depth detection device of the utility model example adopts an adjustable support block and an adjustable roller to support and limit the inner ring and the outer ring of the slewing bearing, and can detect the raceway hardness, thereby detecting the raceway quenching layer depth, and is simple to operate and easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0015] Figure 2 for Figure 1 A schematic cross-sectional structure diagram of ;

[0016] Figure 3 for Figure 2 Schematic diagram of the structure viewed from above;

[0017] Figure 4 for Figure 2 A right view structural diagram of ;

[0018] Figure 5 This is a schematic diagram of testing the inner ring raceway of the slewing bearing;

[0019] Figure 6 This is a schematic diagram for testing the outer ring raceway of the slewing bearing.

[0020] In the figure: 1 Brinell hardness tester, 2 mounting frame, 21 fixed shaft, 3 support block, 31 positioning groove, 4 hydraulic cylinder, 41 support frame, 42 positioning column, 5 fixing seat, 51 threaded barrel, 52 screw, 53 roller. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-6 The utility model provides a technical solution: a slewing bearing raceway quenching layer depth detection device, comprising a Brinell hardness tester 1, a strip hole is opened in the middle of the side of the Brinell hardness tester 1, and a mounting frame 2 is slidably arranged inside the strip hole, a fixed shaft 21 is arranged on the mounting frame 2, a support block 3 is rotatably arranged in the middle of the fixed shaft 21, the top of the support block 3 is an arc structure, and a support member for adjusting the height of the support block 3 and supporting it is provided at the lower end of the Brinell hardness tester 1, the support surface of the support block 3 is selected, and then the support block 3 is fixedly supported by the support member.

[0023] As a preferred technical solution of the utility model, the support member includes a hydraulic cylinder 4, a support frame 41 is provided on the top of the hydraulic cylinder 4, two symmetrically arranged positioning columns 42 are provided on the top of the support frame 41, and positioning grooves 31 corresponding to the positioning columns 42 are opened on the top and bottom of the support block 3. The hydraulic cylinder 4 is controlled to extend, and the hydraulic cylinder 4 drives the positioning columns 42 to be inserted into the positioning grooves 31 through the support frame 41, thereby preventing the support block 3 from rotating, and then the ring is placed on the support block 3, and the extension of the hydraulic cylinder 4 is continued to be controlled. At this time, the hydraulic cylinder 4 indirectly drives the fixed shaft 21 and the mounting frame 2 to move up to the appropriate position along the strip hole through the support block 3.

[0024] As a preferred technical solution of the utility model, both ends of the fixed shaft 21 are provided with a fixed seat 5, a telescopic rod is installed on the fixed seat 5, and a rotatable roller 53 is installed on the top of the telescopic rod for limiting support of the inner sleeve and outer ring of the slewing bearing.

[0025] As a preferred technical solution of the utility model, the telescopic rod includes a threaded barrel 51, the internal thread of the threaded barrel 51 is connected to a screw 52, ​​and a roller 53 is rotatably arranged on the top of the screw 52. The screw 52 is rotated to adjust the height of the screw 52 exposed on the outside of the threaded barrel 51, thereby adjusting the height of the roller 53, which is convenient for auxiliary support and positioning of the slewing bearing ring.

[0026] As a preferred technical solution of the utility model, a threaded hole is opened at the position corresponding to the fixed seat 5 and the threaded barrel 51, the inner and outer sides of the threaded barrel 51 are both provided with threads, and the threaded barrel 51 is installed in the threaded hole through a threaded connection, so as to facilitate the adjustment of the height of the threaded barrel 51 on the upper side of the fixed seat 5.

[0027] The Brinell hardness tester 1 used in the present invention is a common electronic component in the prior art, and its working mode and circuit structure are well-known technologies, which will not be described in detail here.

[0028] When using:

[0029] When inspecting the inner ring raceway of the slewing bearing, Figure 5 As shown, the Brinell hardness tester is installed on a platform with a certain height, and the arc surface of the support block 3 supports the inner ring;

[0030] When inspecting the outer ring raceway of the slewing bearing, Figure 6 As shown, the support block 3 is rotated up and down, and the plane of the support block 3 is rotated to the upper side to support the outer ring;

[0031] When supporting the inner ring and the outer ring, first rotate the support block 3, select the flat surface or the arc surface facing upward, and then control the hydraulic cylinder 4 to extend. The hydraulic cylinder 4 drives the positioning column 42 to insert into the positioning groove 31 through the support frame 41, so as to prevent the support block 3 from rotating. Then, place the ring on the support block 3, and continue to control the hydraulic cylinder 4 to extend. At this time, the hydraulic cylinder 4 indirectly drives the fixed shaft 21 and the mounting frame 2 to move up to the appropriate position along the strip hole through the support block 3;

[0032] The height of the roller 53 is adjusted by rotating the threaded barrel 51 and the screw 52, ​​and the roller 53 is clamped onto the ring for auxiliary support and limiting. Then, the raceway hardness can be tested by a Brinell hardness tester. Then, according to the conditions of different materials, the hardness-depth curve is combined for calculation to obtain the quenching layer depth.

[0033] The utility model adopts an adjustable support block 3 and an adjustable roller 53 to support and limit the inner ring and the outer ring of the slewing bearing, and can detect the hardness of the raceway, thereby detecting the depth of the raceway quenching layer. The operation is simple and easy to use.

[0034] The undisclosed parts in the present utility model are all prior art, and their specific structures, materials and working principles are not described in detail. Although the embodiments of the present utility model have been shown and described, it is understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present utility model, and the scope of the present utility model is defined by the attached claims and their equivalents.

Claims

1. A device for detecting the depth of a quenching layer of a slewing bearing raceway, comprising a Brinell hardness tester (1), characterized in that: A strip-shaped hole is provided in the middle of the side surface of the Brinell hardness tester (1), and a mounting frame (2) is slidably arranged inside the strip-shaped hole. A fixed shaft (21) is provided on the mounting frame (2), and a support block (3) is rotatably arranged in the middle of the fixed shaft (21). A support member for adjusting the height of the support block (3) and supporting it is provided at the lower end of the Brinell hardness tester (1).

2. The slewing bearing raceway quenching layer depth detection device according to claim 1 is characterized in that: The support member comprises a hydraulic cylinder (4), a support frame (41) is provided on the top of the hydraulic cylinder (4), two symmetrically arranged positioning columns (42) are provided on the top of the support frame (41), and positioning grooves (31) corresponding to the positioning columns (42) are provided on the top and bottom of the support block (3).

3. The slewing bearing raceway quenching layer depth detection device according to claim 1 is characterized in that: The top of the support block (3) is an arc-shaped structure.

4. The slewing bearing raceway quenching layer depth detection device according to claim 1 is characterized in that: Both ends of the fixed shaft (21) are provided with fixed seats (5), a telescopic rod is mounted on the fixed seat (5), and a rotatable roller (53) is mounted on the top of the telescopic rod for limiting support of the inner sleeve and the outer ring of the slewing bearing.

5. The slewing bearing raceway quenching layer depth detection device according to claim 4 is characterized in that: The telescopic rod comprises a threaded barrel (51), the inner thread of the threaded barrel (51) is connected to a screw rod (52), and a roller (53) is rotatably arranged on the top of the screw rod (52).

6. The slewing bearing raceway quenching layer depth detection device according to claim 5 is characterized in that: A threaded hole is provided at a portion of the fixing seat (5) corresponding to the threaded barrel (51), and the threaded barrel (51) is installed in the threaded hole through a threaded connection.

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