External tooth slewing bearing inspection clamp

Abstract

The utility model discloses an external tooth slewing bearing inspection fixture, which comprises an inspection bench, a plurality of cylinders are arranged on the upper surface of the inspection bench along the circumferential direction, swing arms are rotatably sleeved on the cylinders, fan-shaped pressure heads are fixedly connected to the outer ends of the swing arms, a center hole is arranged in the center of the inspection bench, a motor is mounted on the bottom surface of the inspection bench, and the fan-shaped pressure heads are fixedly connected to the outer ends of the swing arms. A shaft body of the motor penetrates through the center hole, a plurality of side plates are fixedly connected to the outer side of the upper end of the shaft body, long round holes are formed in the side plates, an opening through groove is formed in the inner end of the swing arm, a pin shaft sliding in the long round holes is arranged in the opening through groove, and a plurality of supporting columns are arranged at the bottom of the inspection bench. According to the external tooth slewing bearing inspection clamp, the inner wall of an external tooth type slewing bearing is clamped, the rotation performance of the external tooth slewing bearing is subjected to quality inspection in a mode of rotating an outer side gear ring, and the applicable external tooth slewing bearing is wide in specification range.

Description

Technical Field

[0001] The utility model relates to a slewing bearing, in particular to an inspection fixture for an external gear slewing bearing. Background Art

[0002] The slewing bearing is a new type of mechanical component, which consists of inner and outer rings, rolling elements, etc. The slewing bearing is a large bearing that can withstand comprehensive loads and can simultaneously withstand large axial and radial loads and overturning moments. The rotation performance of the slewing bearing needs to be tested before leaving the factory.

[0003] Publication No. CN116839912B discloses a three-row roller slewing bearing detection method, system, and application. The method involves setting a ferrule as a fixed part and fixing it with a constraint. Specifically, the fixed part is fixed by an electrically controlled or mechanical fixing table as a fixing unit. According to the attached drawings, the fixing portion of the electrically controlled or mechanical fixing table is a column, and the size of the ferrule that can be fixed is fixed, resulting in a small scope of application. Utility Model Content

[0004] The purpose of the utility model is to provide an external gear slewing bearing inspection fixture, which clamps the inner wall of the external gear slewing bearing and rotates the outer gear ring to perform quality inspection on the rotation performance of the external gear slewing bearing. The applicable external gear slewing bearing has a wide range of specifications.

[0005] In order to achieve the above-mentioned purpose, the utility model provides an external gear slewing bearing inspection fixture, which includes an inspection table, the upper surface of the inspection table is provided with a plurality of columns along the circumferential direction, a swing arm is rotatably sleeved on the column, the outer end of the swing arm is fixedly connected to a fan-shaped pressure head, a center hole is provided in the center of the inspection table, a motor is installed on the bottom surface of the inspection table, the shaft of the motor is provided through the center hole, a plurality of side plates are fixedly connected to the outer side of the upper end of the shaft, an oblong hole is provided on the side plate, an open through groove is provided at the inner end of the swing arm, a pin shaft sliding in the oblong hole is provided in the open through groove, and a plurality of pillars are provided at the bottom of the inspection table.

[0006] Preferably, the outer ends of the plurality of swing arms are bent in the same direction to form a bent portion; and the fan-shaped pressure head is fixed to the outer end of the bent portion.

[0007] Preferably, the angle between the bent portion and the swing arm body is 100-150°.

[0008] Preferably, the left and right corners of the fan-shaped pressure head are set to be rounded corners.

[0009] Preferably, a mounting plate is fixed to the bottom of the support, and a plurality of mounting holes are provided on the mounting plate.

[0010] Preferably, the number of the swing arms is 3-6.

[0011] Preferably, an annular step is provided on the outer edge of the inspection platform.

[0012] Preferably, the inspection table is provided with an annular expansion support supported on the annular step surface.

[0013] According to the above technical solution, the utility model provides an external gear slewing bearing inspection fixture, which includes an inspection table, the upper surface of the inspection table is provided with multiple columns along the circumferential direction, a swing arm is rotatably sleeved on the column, the outer end of the swing arm is fixedly connected to a fan-shaped pressure head, a center hole is provided in the center of the inspection table, a motor is installed on the bottom surface of the inspection table, the shaft of the motor is provided through the center hole, a plurality of side plates are fixedly connected to the outer side of the upper end of the shaft, an oblong hole is provided on the side plate, an open through groove is provided at the inner end of the swing arm, a pin shaft sliding in the oblong hole is provided in the open through groove, and a plurality of pillars are provided at the bottom of the inspection table.

[0014] The usage and beneficial effects of the external gear slewing bearing inspection fixture are as follows: first, the side plate is driven to rotate by the rotation of the motor, and the swing arm is pushed to swing under the rotation of the side plate, so that the fan-shaped pressure heads of the multiple swing arms are in an inward-folded state, and then the external gear slewing bearing to be clamped is placed on the inspection table, and then the motor is reversed, so that the fan-shaped pressure heads of the multiple swing arms are in an outward-expanded state, until the fan-shaped pressure heads are squeezed on the inner wall of the external gear slewing bearing, the inner ring of the external gear slewing bearing is pressed and fixed, and then the rotation performance of the external gear slewing bearing can be inspected by rotating the outer gear ring of the external gear slewing bearing.

[0015] Other features and advantages of the present invention will be described in detail in the subsequent detailed description of the embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present invention but do not constitute a limitation of the present invention. In the accompanying drawings:

[0017] Figure 1 This is a schematic structural diagram of a preferred embodiment of an external gear slewing bearing inspection fixture;

[0018] Figure 2 yes Figure 1 Schematic diagram of the bottom perspective structure.

[0019] Description of Reference Numerals

[0020] 1-Inspection table; 2-Annular extension support; 3-Pillar; 4-Mounting plate; 5-Mounting hole; 6-Swing arm; 7-Bending part; 8-Pin shaft; 9-Cylinder; 10-Fan-shaped pressure head; 11-Open slot; 12-Side plate; 13-Oval hole; 14-Motor; 15-Annular step. DETAILED DESCRIPTION

[0021] The following is a detailed description of the specific embodiments of the present invention in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present invention and are not intended to limit the present invention.

[0022] In the present invention, unless otherwise stated, directional words contained in terms such as "up, down, left, right, front, back, inside, outside" merely represent the orientation of the term in normal usage, or are common names understood by those skilled in the art, and should not be regarded as limitations on the term.

[0023] See also Figure 1-2 The external gear slewing bearing inspection fixture shown in the figure includes an inspection table 1, and a plurality of columns 9 are circumferentially arranged on the upper surface of the inspection table 1. A swing arm 6 is rotatably sleeved on the column 9, and a fan-shaped pressure head 10 is fixedly connected to the outer end of the swing arm 6. A center hole is provided at the center of the inspection table 1, and a motor 14 is installed on the bottom surface of the inspection table 1. The shaft of the motor 14 is provided through the center hole, and a plurality of side plates 12 are fixedly connected to the outer side of the upper end of the shaft. An oblong hole 13 is provided on the side plate 12, and an open through groove 11 is provided at the inner end of the swing arm 6. A pin shaft 8 sliding in the oblong hole 13 is provided in the open through groove 11, and a plurality of pillars 3 are provided at the bottom of the inspection table 1.

[0024] Through the implementation of the above technical solution, the side plate 12 is first rotated by the rotation of the motor 14, and the swing arm 6 is pushed by the rotation of the side plate 12 to swing, so that the fan-shaped pressure heads 10 of the multiple swing arms 6 are in a state of retracting inward. Then, the external gear slewing bearing to be clamped is placed on the inspection table 1, and the motor 14 is reversed, so that the fan-shaped pressure heads 10 of the multiple swing arms 6 are in a state of expanding outward until the fan-shaped pressure heads 10 are pressed against the inner wall of the external gear slewing bearing, pressing and fixing the inner ring of the external gear slewing bearing. Then, the rotation performance of the external gear slewing bearing can be tested by rotating the outer gear ring of the external gear slewing bearing. Since the fan-shaped pressure heads 10 of the multiple swing arms 6 can be expanded or retracted, it can adapt to the inspection of external gear slewing bearings with more inner diameter sizes.

[0025] In this embodiment, the outer ends of the plurality of swing arms 6 are bent in the same direction to form a bent portion 7; the fan-shaped pressing head 10 is fixed to the outer end of the bent portion 7. The arrangement of the bent portion 7 allows the bent portion 7 to have a smaller radius when it is bent inward, thus enabling the fixation of an external gear slewing bearing with a smaller inner diameter.

[0026] In this embodiment, in order to further provide a setting method for the bending portion 7, the angle between the bending portion 7 and the main body of the swing arm 6 is 100-150°.

[0027] In this embodiment, the left and right corners of the fan-shaped pressing head 10 are set as rounded corners. Through such a setting, the fan-shaped pressing head 10 has a better pressing effect.

[0028] In this embodiment, a mounting plate 4 is fixed to the bottom of the support 3, and a plurality of mounting holes 5 are provided on the mounting plate 4. Through such an arrangement, the external gear slewing bearing inspection fixture can be installed on the installation station.

[0029] In this embodiment, in order to further provide a setting mode of the swing arms 6, the number of the swing arms 6 is 3-6. The swing arms 6 are arranged at equal intervals.

[0030] In this embodiment, an annular step 15 is provided on the outer edge of the test table 1. With this arrangement, after the outer gear slewing bearing is fixed, the inner ring is placed on the test table 1, and the outer gear ring is placed in the space above the annular step 15, so that the outer gear ring will not rub against the lower part during rotation inspection.

[0031] In this embodiment, an annular extension support 2 is mounted on the inspection table 1 and supported on the surface of the annular step 15. This arrangement allows the inner ring of the external gear slewing bearing to be stably supported by mounting one or more annular extension supports 2 when the inner ring radius of the external gear slewing bearing increases.

[0032] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments. Within the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the scope of protection of the present invention.

[0033] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any appropriate manner without contradiction. In order to avoid unnecessary repetition, the present invention will not further describe various possible combinations.

[0034] In addition, the various embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the present invention, they should also be regarded as the contents disclosed by the present invention.

Claims

1. An external gear slewing bearing inspection fixture, characterized in that: The external gear slewing bearing inspection fixture comprises an inspection table (1), a plurality of columns (9) are provided on the upper surface of the inspection table (1) along the circumferential direction, a swing arm (6) is rotatably sleeved on the column (9), a fan-shaped pressure head (10) is fixedly connected to the outer end of the swing arm (6), and a center hole is provided at the center of the inspection table (1); A motor (14) is installed on the bottom surface of the inspection table (1), and the shaft of the motor (14) is arranged through the center hole. A plurality of side plates (12) are fixedly connected to the outer side of the upper end of the shaft, and an oblong hole (13) is provided on the side plate (12). An open slot (11) is provided at the inner end of the swing arm (6), and a pin shaft (8) sliding in the oblong hole (13) is provided in the open slot (11). A plurality of pillars (3) are provided at the bottom of the inspection table (1).

2. The external gear slewing bearing inspection fixture according to claim 1, characterized in that: The outer ends of the plurality of swing arms (6) are bent in the same direction to form a bent portion (7); The fan-shaped pressure head (10) is fixed to the outer end of the bent portion (7).

3. The external gear slewing bearing inspection fixture according to claim 2, characterized in that: The angle between the bent portion (7) and the main body of the swing arm (6) is 100-150°.

4. The external gear slewing bearing inspection fixture according to claim 1, characterized in that: The left and right corners of the sector-shaped pressure head (10) are configured as rounded corners.

5. The external gear slewing bearing inspection fixture according to claim 1, characterized in that: A mounting plate (4) is fixedly connected to the bottom of the support (3); The mounting plate (4) is provided with a plurality of mounting holes (5).

6. The external gear slewing bearing inspection fixture according to claim 1, characterized in that: The number of the swing arms (6) is 3-6.

7. The external gear slewing bearing inspection fixture according to any one of claims 1 to 6, characterized in that: The outer edge of the inspection platform (1) is provided with an annular step (15).

8. The external gear slewing bearing inspection fixture according to claim 7, characterized in that: The inspection table (1) is sleeved with an annular expansion support (2) supported on the table surface of the annular step (15).

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