Slewing bearing concentric deviation detection device

Abstract

The utility model discloses a slewing bearing concentric deviation detection device, and belongs to the technical field of slewing bearing processing. A slewing bearing concentric deviation detection device comprises a base and a tool shaft seat, a detection platform is arranged at the top of the tool shaft seat, a rotating ring is arranged on the outer side of the detection platform, a displacement sliding groove is formed in the outer surface of the detection platform, a concentric gear is arranged above the displacement sliding groove, and a rotating shaft is arranged on the rotating ring. Rotating motors are arranged on the two sides of the tool shaft base and connected with the tool shaft base through bolts. In order to solve the problems that a manual caliper detection mode is mostly adopted in the production and machining process of an existing slewing bearing, although the precision of the detection mode is high, the detection efficiency is relatively low, when the tooth pitch of inner teeth of the slewing bearing has deviation, a concentric gear can slightly move, and therefore it is judged that the current bearing is unqualified, and the detection efficiency is poor. And compared with a manual caliper, the detection efficiency is higher while the precision is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of slewing bearing processing technology, specifically a slewing bearing concentricity deviation detection device. Background Technology

[0002] Slewing bearings are commonly used in heavy machinery, such as cranes and excavators, which need to withstand large loads while also being able to rotate. Concentricity deviation refers to the concentricity deviation between the inner and outer rings of the slewing bearing, that is, whether their central axes coincide. If the concentricity is poor, it may lead to unstable operation of the equipment, accelerated wear, or even failure.

[0003] The existing slewing bearings are mostly inspected by manual calipers during the production process. Although this method has high accuracy, the inspection efficiency is relatively low. Utility Model Content

[0004] The purpose of this invention is to provide a slewing bearing concentricity deviation detection device. When there is a deviation in the pitch of the internal teeth of the slewing bearing, the concentric gear will make a slight movement, thereby determining that the current bearing is unqualified. Compared with manual calipers, the detection efficiency is faster while ensuring accuracy, and it can solve the problems in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a slewing bearing concentric deviation detection device, comprising a base and a tooling bearing, wherein a detection platform is provided on the top of the tooling bearing, and a rotating ring is provided on the outer side of the detection platform, wherein a displacement groove is provided on the outer surface of the detection platform, and a concentric gear is provided above the displacement groove, and a rotary motor is provided on both sides of the tooling bearing, and the rotary motor is connected to the tooling bearing by bolts.

[0006] Furthermore, a lubricating ball is provided between the detection platform and the rotating ring, and a ball bearing groove is provided on the inner side of the rotating ring, through which the rotating ring is slidably connected to the lubricating ball.

[0007] Furthermore, the bottom of the rotating ring is provided with toothed grooves, and a drive gear is provided above the rotary motor, with the rotating ring meshing and rotating with the drive gear.

[0008] Furthermore, the bottom of the rotating ring is provided with toothed grooves, and a drive gear is provided above the rotary motor, with the rotating ring meshing and rotating with the drive gear.

[0009] Furthermore, a sliding rod is provided below the concentric gear, wherein the concentric gear and the sliding rod are rotatably connected by a bearing, and the sliding rod is slidably connected to the displacement groove.

[0010] Furthermore, a displacement sensing element is provided at one end of the displacement groove.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] In this invention, the internal teeth of the slewing bearing mesh with three sets of concentric gears on the surface of the inspection platform, thereby driving the rotating ring to rotate, causing the slewing bearing to rotate synchronously. The concentric gears meshing with it will also rotate. When there is a deviation in the pitch of the internal teeth of the slewing bearing, the concentric gears will make a slight movement, thereby determining that the current bearing is unqualified. Compared with manual calipers, the inspection efficiency is faster while ensuring accuracy. Attached Figure Description

[0013] Figure 1 This is the overall front view of the present invention;

[0014] Figure 2 This is a schematic diagram of the rotating ring structure of this utility model;

[0015] Figure 3 This is a schematic diagram of the overall cross-sectional structure of this utility model.

[0016] In the diagram: 1. Base; 2. Tooling bearing; 3. Rotary motor; 201. Detection platform; 202. Rotary ring; 203. Concentric gear; 204. Displacement groove; 2011. Lubricating ball; 2021. Positioning hole; 2022. Ball bearing groove; 2031. Slide rod; 2041. Displacement sensing element; 301. Drive gear. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] To address the issue of the current method of manually inspecting slewing bearings using calipers during production, which, while accurate, is relatively inefficient; please refer to... Figure 1-3 The present invention provides the following solution:

[0019] A slewing bearing concentricity deviation detection device includes a base 1 and a tooling bearing 2. A detection platform 201 is mounted on the top of the tooling bearing 2, and a rotating ring 202 is mounted on the outer side of the detection platform 201. A displacement groove 204 is provided on the outer surface of the detection platform 201, and a concentric gear 203 is mounted above the displacement groove 204. Rotary motors 3 are mounted on both sides of the tooling bearing 2, and the rotary motors 3 are bolted to the tooling bearing 2. During detection, a machined internal gear slewing bearing is placed on the rotating ring 2. Above 02, and lock it in place. During installation, it is necessary to ensure that the internal teeth of the slewing bearing mesh with the three sets of concentric gears 203 on the surface of the detection platform 201. Then drive the rotating ring 202 to rotate, so that the slewing bearing rotates synchronously. The concentric gears 203 meshing with it will also rotate. When there is a deviation in the pitch of the internal teeth of the slewing bearing, the concentric gears 203 will make a slight movement, thereby judging that the current support is unqualified. The detection efficiency is faster than that of manual calipers while ensuring accuracy.

[0020] A lubricating ball 2011 is provided between the testing platform 201 and the rotating ring 202. A ball bearing groove 2022 is provided on the inner side of the rotating ring 202. The rotating ring 202 is slidably connected to the lubricating ball 2011 through the ball bearing groove 2022. A toothed groove is provided at the bottom of the rotating ring 202. A drive gear 301 is provided above the rotary motor 3. The rotating ring 202 is meshed with the drive gear 301 and rotates. The rotary motor 3 drives the rotation of the drive gear 301 to realize the rotation operation of the rotating ring 202. A positioning hole 2021 is provided on the outer surface of the rotating ring 202. The positioning hole 2021 can correspond to the hole on the slewing bearing structure. The bearing is then fixed to the rotating ring 202 by bolts. In this way, the bearing can be driven to rotate by the rotating ring 202.

[0021] Below the concentric gear 203, a slide rod 2031 is provided. The concentric gear 203 and the slide rod 2031 are rotatably connected by a bearing. The slide rod 2031 is slidably connected to the displacement groove 204. An elastic reset structure is adopted between the slide rod 2031 and the groove body. This can ensure the tightness of the connection between the concentric gear 203 and the slewing bearing. A displacement sensing element 2041 is provided at one end inside the displacement groove 204. The concentric gear 203 meshes with the internal teeth of the slewing bearing. Therefore, when there is a deviation in the internal teeth of the slewing bearing, the meshing concentric gear 203 will be displaced. At this time, the displacement distance can be detected by the displacement sensing element 2041, thereby determining whether the deviation value meets the standard.

[0022] The working principle is as follows: the machined internal gear slewing bearing is placed on top of the slewing ring 202 and locked in place. During installation, it is necessary to ensure that the internal teeth of the slewing bearing mesh with the three sets of concentric gears 203 on the surface of the detection platform 201. Then, the slewing ring 202 is driven to rotate, so that the slewing bearing rotates synchronously. The concentric gears 203 meshing with it will also rotate. When there is a deviation in the pitch of the internal teeth of the slewing bearing, the concentric gears 203 will make a slight movement, thereby judging that the current bearing is unqualified.

[0023] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for detecting concentricity deviation of a slewing bearing, characterized in that, The device includes a base (1) and a tooling shaft seat (2). The top of the tooling shaft seat (2) is provided with a detection platform (201), and a rotating ring (202) is provided on the outer side of the detection platform (201). The outer surface of the detection platform (201) is provided with a displacement groove (204), and a concentric gear (203) is provided above the displacement groove (204). Rotary motors (3) are provided on both sides of the tooling shaft seat (2), and the rotary motors (3) are connected to the tooling shaft seat (2) by bolts.

2. The slewing bearing concentricity deviation detection device according to claim 1, characterized in that: A lubricating ball (2011) is provided between the detection platform (201) and the rotating ring (202). A ball bearing groove (2022) is provided on the inner side of the rotating ring (202). The rotating ring (202) is slidably connected to the lubricating ball (2011) through the ball bearing groove (2022).

3. The slewing bearing concentricity deviation detection device according to claim 1, characterized in that: The bottom of the rotating ring (202) is provided with a toothed groove, and the top of the rotary motor (3) is provided with a drive gear (301). The rotating ring (202) is meshed with the drive gear (301) and rotates.

4. The slewing bearing concentricity deviation detection device according to claim 1, characterized in that: The outer surface of the rotating ring (202) is provided with positioning holes (2021).

5. The slewing bearing concentricity deviation detection device according to claim 1, characterized in that: A slide rod (2031) is provided below the concentric gear (203), wherein the concentric gear (203) and the slide rod (2031) are rotatably connected by a bearing, and the slide rod (2031) is slidably connected to the displacement groove (204).

6. The slewing bearing concentricity deviation detection device according to claim 1, characterized in that: A displacement sensing element (2041) is provided at one end inside the displacement groove (204).

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