Slewing bearing tooth jump detection device

Abstract

The utility model discloses a slewing bearing tooth jump detection device, and belongs to the technical field of slewing bearing detection. The slewing bearing tooth jump detection device comprises a detection base, a rotating disc is installed in the center of the upper surface of the detection base, extension rods are symmetrically arranged on the two sides of the rotating disc, one end of each extension rod is hinged to a pull rod, one end of each pull rod is hinged to a detection block, and a slewing bearing body to be detected is placed on the rotating disc. According to the slewing bearing tooth jump detection device of the utility model, the rotating disc is arranged to drive the two detection blocks to move in opposite directions, and the symmetric points on the two sides of the slewing bearing body are detected at the same time, so that the balance of the two sides of the slewing bearing body can be maintained, and the center of the outer ring of the slewing bearing body is prevented from deviating; and the outer ring of the slewing bearing body can be fixed in the detection process, the detection precision is improved, automatic adjustment can be achieved according to the specification of the slewing bearing body, and the application range is wide.

Description

Technical Field

[0001] The utility model relates to the technical field of slewing bearing detection, and more particularly to a slewing bearing tooth jump detection device. Background Art

[0002] The accuracy of slewing bearing gear tooth runout is a crucial factor in the stable meshing operation of a gear pair. Inadequate tooth runout accuracy can lead to abnormal wear on the gear tooth surfaces, vibration and noise during meshing, shortening the gear lifespan and, in severe cases, even causing tooth breakage. Therefore, slewing bearing tooth runout detection is extremely important. Currently, the traditional method for slewing bearing tooth runout detection is manual inspection of each tooth, which is time-consuming and labor-intensive, resulting in significant errors in the test results.

[0003] Chinese patent publication number CN211926681U discloses a slewing bearing tooth jump detection device. When performing tooth jump detection, the slewing bearing is placed on a base, and sample rods are inserted into the tooth grooves of the slewing bearing one by one, and the measurement is calculated using a dial indicator. The measurement steps are simple and efficient, and the labor intensity of the inspection personnel is reduced.

[0004] However, the patent applies pressure test to one side of the slewing bearing during the test. During the test, since the outer ring of the slewing bearing has no supporting force, it is easy to cause the test point to move. At the same time, there is a gap between the outer ring and the inner ring. The sample rod may cause the center position of the outer ring of the slewing bearing to shift, resulting in a certain detection error. In addition, the work efficiency is low due to the single-sided detection. Utility Model Content

[0005] The purpose of the present invention is to overcome the deficiencies in the prior art and to provide a slewing bearing tooth jump detection device to solve the above deficiencies.

[0006] In order to achieve the above-mentioned purpose, the technical solution provided by the present utility model is:

[0007] The utility model discloses a slewing bearing tooth jump detection device, comprising a detection base, a turntable is installed at the center position of the upper surface of the detection base, a drive motor connected to the turntable is installed on the detection base, the drive motor drives the turntable to rotate, extension rods are symmetrically arranged on both sides of the turntable, one end of the extension rod is hinged to a pull rod, one end of the pull rod is hinged to a detection block, and the slewing bearing body to be detected is placed on the turntable.

[0008] Preferably, a first sliding groove is provided on the extension rod, a first sliding block is movably connected in the first sliding groove, and the first sliding groove serves as a movement guide for the first sliding block.

[0009] Preferably, a guide rod with a tube passing through the first slider is provided in the first slide groove, and a first spring is sleeved on the guide rod. The first spring supports the first slider to move in the opposite direction to support the inner wall of the slewing support body. A tightening block is provided at the upper end of the first slider, and the tightening block is tightened against the inner wall of the slewing support body.

[0010] Preferably, the end of the pull rod away from the extension rod is fixedly connected to a short shaft, and the short shaft is movably connected to the detection block. When the turntable rotates, the extension rod is driven to rotate synchronously, and the detection blocks are controlled to move toward each other through the pull rod, driving the detection blocks to detect the slewing support body at the same time.

[0011] Preferably, a second slide groove is symmetrically provided on the upper surface of the detection base, and a second slider is provided at the lower end of the detection block. The second slider is movably connected to the second slide groove, and at the same time, one side of the second slider is sleeved with the short shaft. The pull rod pulls the second slider to move its position in the second slide groove, and the detection blocks move toward each other, and at the same time, the tooth grooves on the outer ring of the slewing bearing body are detected.

[0012] Preferably, a dial indicator is provided at the upper end of the detection block, and a movable hole is opened on the detection block, in which a detection rod is movably connected, and the detection rod can move in the movable hole to change its position.

[0013] Preferably, a sample rod is connected to one end of the detection rod, a baffle is fixedly connected to the detection rod, a second spring is sleeved on the detection rod between the baffle and the detection block, the second spring pushes the baffle to move toward the slewing support body, and a dial indicator obtains the baffle position reading.

[0014] Compared with the prior art, the technical solution provided by this utility model has the following beneficial effects:

[0015] The slewing bearing tooth jump detection device of the present invention drives two detection blocks to move toward each other by setting a turntable, and detects symmetrical points on both sides of the slewing bearing body at the same time. It can not only maintain the balance of both sides of the slewing bearing body and avoid the center deviation of the outer ring of the slewing bearing body, but also fix the outer ring of the slewing bearing body during the detection process to improve the detection accuracy. The inner ring of the slewing bearing body is fixed by the first slider and the first slide groove, and can be automatically adjusted according to the specifications of the slewing bearing body, and has a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a detection state diagram of the slewing bearing tooth jump detection device of the present utility model;

[0017] Figure 2 This is the overall structural diagram of the slewing bearing tooth jump detection device of the utility model;

[0018] Figure 3 This is a partial exploded view of the turntable and detection block of the utility model.

[0019] In the figure: 1. Detection base; 11. Second slide; 2. Turntable; 21. Extension rod; 211. First slide; 212. Guide rod; 213. First spring; 22. Pull rod; 221. Short shaft; 23. First slider; 231. Tightening block; 3. Detection block; 31. Second slider; 32. Dial indicator; 33. Movable hole; 34. Detection rod; 341. Sample rod; 342. Baffle; 343. Second spring; 4. Slewing support body. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] In order to further understand the content of the present invention, the present invention is described in detail with reference to the accompanying drawings.

[0022] Combine Figure 1-Figure 3 The slewing bearing tooth jump detection device of the present invention includes a detection base 1, a turntable 2 is installed at the center position of the upper surface of the detection base 1, and a driving motor connected to the turntable 2 is installed on the detection base 1, and the driving motor drives the turntable 2 to rotate.

[0023] Extension rods 21 are symmetrically arranged on both sides of the turntable 2, and the ends of the extension rods 21 are hinged with pull rods 22. The end of the pull rod 22 away from the extension rod 21 is fixedly connected to a short shaft 221, and the short shaft 221 is movably connected to the detection block 3. When the turntable 2 rotates, it drives the extension rods 21 to rotate synchronously, and controls the detection block 3 to move toward each other through the pull rod 22, driving the detection block 3 to detect the slewing support body 4 at the same time.

[0024] The slewing support body 4 is placed on the turntable 2 for fixing. In order to fix the slewing support body 4, a first sliding groove 211 is opened on the extension rod 21, and the first sliding groove 211 is movably connected with the first slider 23. A guide rod 212 is provided in the first sliding groove 211, and a first spring 213 is sleeved on the guide rod 212. The first spring 213 supports the first slider 23 to move in the opposite direction. A tightening block 231 is provided on the upper end of the first slider 23. The tightening block 231 is pressed tightly against the inner wall of the slewing support body 4, thereby fixing the inner ring of the slewing support body 4. When installing slewing support bodies 4 of different diameters, the first sliders 23 are first squeezed toward each other at the same time to reduce the distance between them, and then the slewing support body 4 is sleeved with the first slider 23. The first slider 23 is automatically pressed against the inner wall of the slewing support body 4 under the support of the first spring 213.

[0025] In order to limit the moving path of the detection block 3, a second slide groove 11 is symmetrically opened on the upper surface of the detection base 1, and a second slider 31 is provided at the lower end of the detection block 3. The second slider 31 is movably connected to the second slide groove 11. At the same time, one side of the second slider 31 is sleeved with the short shaft 221. The pull rod 22 pulls the second slider 31 to move its position in the second slide groove 11. The detection block 3 moves toward each other and detects the tooth grooves on the outer ring of the slewing support body 4 at the same time. Applying force on both sides at the same time can fix the outer ring of the slewing support body 4 and prevent the center of the outer ring of the slewing support body 4 from shifting. Detecting two points at the same time can also improve the detection efficiency.

[0026] A dial indicator 32 is provided at the upper end of the detection block 3, and a movable hole 33 is opened on the detection block 3. A detection rod 34 is movably connected in the movable hole 33. One end of the detection rod 34 is connected to a sample rod 341 which is engaged with the outer ring tooth groove of the slewing support body 4. A baffle 342 is also fixedly connected to the detection rod 34. A second spring 343 is sleeved on the detection rod 34 between the baffle 342 and the detection block 3. The second spring 343 pushes the baffle 342 to move toward the slewing support body 4. The dial indicator 32 obtains the position reading of the baffle 342. A certain number of detection points are selected according to the inspection requirements. Among all the detection point values, the difference between the maximum and minimum values ​​is the tooth jump value of the slewing support body 4.

[0027] Working process: put the slewing support body 4 to be inspected onto the outside of the first slider 23, relax the first slider 23, and under the support of the first spring 213, the first slider 23 automatically sticks to the inner wall of the slewing support body 4, fixes the inner ring of the slewing support body 4, drives the motor to drive the turntable 2 to rotate, and the extension rod 21 controls one end of the pull rod 22 to approach each other, driving the detection block 3 to move along the first slide groove 211, and the detection block 3 approaches the slewing support body 4 until the sample rod 341 is engaged with the tooth groove on the outer ring of the slewing support body 4, and the dial indicator 32 reads the current value. After recording, the detection block 3 moves away under the control of the turntable 2, and the outer ring of the slewing support body 4 is rotated to change the detection position. Among all the detection point values, the difference between the maximum and minimum values ​​is the tooth jump value of the slewing support body 4.

[0028] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0029] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A slewing bearing tooth jump detection device, comprising a detection base (1), characterized in that: A turntable (2) is installed at the center position of the upper surface of the detection base (1), and extension rods (21) are symmetrically arranged on both sides of the turntable (2). One end of the extension rod (21) is hingedly connected to a pull rod (22), and one end of the pull rod (22) is hingedly connected to a detection block (3). A slewing support body (4) to be detected is placed on the turntable (2).

2. The slewing bearing tooth jump detection device according to claim 1, characterized in that: The extension rod (21) is provided with a first sliding groove (211), and a first sliding block (23) is movably connected in the first sliding groove (211).

3. The slewing bearing tooth jump detection device according to claim 2, characterized in that: A guide rod (212) is provided in the first chute (211) and passes through the first slider (23). A first spring (213) is sleeved on the guide rod (212). A tightening block (231) is provided at the upper end of the first slider (23).

4. The slewing bearing tooth jump detection device according to claim 1, characterized in that: One end of the pull rod (22) away from the extension rod (21) is fixedly connected to a short shaft (221), and the short shaft (221) is movably connected to the detection block (3).

5. The slewing bearing tooth jump detection device according to claim 4, characterized in that: The upper surface of the detection base (1) is symmetrically provided with a second slide groove (11), and the lower end of the detection block (3) is provided with a second slider (31), the second slider (31) is movably connected to the second slide groove (11), and one side of the second slider (31) is sleeved with the short shaft (221).

6. The slewing bearing tooth jump detection device according to claim 1, characterized in that: A dial indicator (32) is provided at the upper end of the detection block (3), a movable hole (33) is provided on the detection block (3), and a detection rod (34) is movably connected in the movable hole (33).

7. The slewing bearing tooth jump detection device according to claim 6, characterized in that: One end of the detection rod (34) is connected to a sample rod (341), and a baffle (342) is fixedly connected to the detection rod (34). A second spring (343) is sleeved on the detection rod (34) between the baffle (342) and the detection block (3).

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