CN221259698U

CN221259698U - Crank shaft circle runout detection device

Info

Publication number: CN221259698U
Application number: CN202323156862.7U
Authority: CN
Inventors: 王香娣; 叶育钢; 侯宝军; 李伟; 王一凯; 宫金元
Original assignee: Shaanxi North Dynamic Co ltd
Current assignee: Shaanxi North Dynamic Co ltd
Filing date: 2023-11-22
Publication date: 2024-07-02
Anticipated expiration: 2033-11-22

Abstract

The utility model relates to the technical field of crankshaft detection, in particular to a crankshaft circle runout detection device which comprises a base, wherein the top of the base is in transmission connection with a detection mechanism; the detection mechanism comprises a support component, one side of the top of the support component is rotationally connected with an adjusting component, the adjusting component is connected with a contact component in a sliding manner, and a dial indicator is arranged on the adjusting component; the adjusting component comprises a connecting rod, a third sliding groove is formed in the connecting rod, a second sliding block is connected to the inner portion of the third sliding groove in a sliding mode, adjusting bolts are arranged on two sides of the second sliding block, and a connecting hole is formed in the middle of the connecting rod. The utility model has the advantages that: this bent axle circle detection device that beats, through setting up detection mechanism, be convenient for detect the bent axle of different specifications, and be in relative quiescent condition between amesdial and the bent axle to the in-process that the bent axle detected, avoid the position of amesdial to appear changing in the testing process and lead to the testing result to appear the error to the precision of detection has been ensured.

Description

Crank shaft circle runout detection device

Technical Field

The utility model relates to the technical field of crankshaft detection, in particular to a crankshaft circle runout detection device.

Background

The crankshaft is a core component in the engine, and the rotation speed is frequently changed and the interval is large, so that the crankshaft has a strict requirement on the dynamic balance of the crankshaft. The overlarge unbalance of the crankshaft can cause the crankshaft to generate larger vibration in high-speed rotation, so that the surface of the shaft diameter of the crankshaft, the bearing bush, the bearing and other parts are abnormally worn, and the service life of the engine is reduced. In addition, the vibration is large, so that the engine shakes and abnormal sound are caused, the output power of the engine is uneven, and the output efficiency is reduced. The detection of the runout of the crankshaft circle (comprising the main journal and the excircle of the big head and the small head) has important significance for ensuring the quality of products.

The utility model discloses a bent axle circle detection device that beats in China patent CN217669004U, including the big, little top of left and right both sides on the frame platen, its characterized in that, first mount pad upper portion is equipped with flexible cylinder, and flexible cylinder's piston rod links to each other with the top rear end of big top, is equipped with the buffering column spring on the second mount pad, and one terminal surface of buffering column spring links to each other with the top rear end of little top, and another terminal surface of buffering column spring links to each other with the second mount pad, detection device still includes two v shape brackets of installing between big, little top, and the position of bearing on the frame platen is along controlling the direction adjustable.

However, compared with the prior art and the comparison scheme, the crank circle run-out detection device in the prior art has the following problems in the using process:

According to the difference of engine model, the length thickness of bent axle also varies, when carrying out the circle to the bent axle of different thickness specifications and beating the detection, need the amesdial position change that uses when detecting, consequently, the position of amesdial is adjustable more, and in the in-process that detects the bent axle in case the position of amesdial appears changing, will lead to the testing result to appear the error, influences the precision of detection.

Therefore, the present application provides a crank circle runout detecting device to solve the above-mentioned problems.

Disclosure of utility model

The object of the present utility model is to solve at least one of the technical drawbacks.

The utility model aims to overcome the defects of the prior art, solve the problems in the background art and provide a crank shaft circle run-out detection device.

The aim of the utility model is achieved by the following technical scheme: the crank shaft circle runout detection device comprises a base, wherein the top of the base is in transmission connection with a detection mechanism;

The detection mechanism comprises a support component, one side of the top of the support component is rotationally connected with an adjusting component, the adjusting component is connected with a contact component in a sliding manner, and a dial indicator is arranged on the adjusting component;

The adjusting component comprises a connecting rod, a third sliding groove is formed in the connecting rod, a second sliding block is connected to the inner portion of the third sliding groove in a sliding mode, adjusting bolts are arranged on two sides of the second sliding block, a connecting hole is formed in the middle of the connecting rod, an installation pipe is fixedly connected to the connecting rod, a fixing bolt is arranged on the installation pipe, and the dial indicator is installed on the installation pipe through the fixing bolt;

The contact assembly comprises a sliding shaft, one end of the sliding shaft is fixedly connected with a limiting plate, one end of the sliding shaft, which is far away from the limiting plate, is fixedly connected with a contact plate, and an elastic piece is arranged on the contact plate.

Preferably, the base comprises a base body, a first sliding groove is formed in the top of the base body, a driving piece is fixedly mounted on one side of the base body, a bidirectional screw is arranged at the output end of the driving piece, and a limiting shaft is fixedly connected to the inside of the first sliding groove.

Preferably, the support assembly comprises a support frame, the bottom of the support frame is fixedly connected with a connecting block and a first sliding block, the bottom of the support frame is provided with a roller, and a second sliding groove is formed in the support frame.

Preferably, the connecting block is connected with the driving piece in a transmission way through a bidirectional screw rod, the first sliding block is connected in the first sliding groove in a sliding way through a limiting shaft, and the roller is lapped on the seat body.

Preferably, one end of the connecting rod is rotatably connected to the support frame, and the adjusting bolt is slidably connected to the support frame through the second sliding groove.

Preferably, the sliding shaft is slidably connected to the connecting rod through the connecting hole, and the elastic member is located between the contact plate and the connecting rod.

Compared with the prior art, the utility model has the following advantages:

This bent axle circle detection device that beats, through setting up detection mechanism, be convenient for detect the bent axle of different specifications, and be in relative quiescent condition between amesdial and the bent axle to the in-process that the bent axle detected, avoid the position of amesdial to appear changing in the testing process and lead to the testing result to appear the error to the precision of detection has been ensured.

None of the parts of the device are the same as or can be implemented using prior art.

Drawings

FIG. 1 is a schematic view of the structure of the present utility model in its working state;

FIG. 2 is a schematic diagram of the structure of the present utility model;

FIG. 3 is a schematic view of the structure of the base of the present utility model;

FIG. 4 is a schematic diagram of the detection mechanism of the present utility model;

FIG. 5 is a schematic view of a support assembly according to the present utility model;

FIG. 6 is a schematic view of the structure of the adjusting assembly of the present utility model;

Fig. 7 is a schematic view of the structure of the contact assembly of the present utility model.

In the figure: 1. a base; 101. a base; 102. a first chute; 103. a driving member; 104. a bidirectional screw; 105. a limiting shaft; 2. a detection mechanism; 21. a support assembly; 211. a support frame; 212. a connecting block; 213. a first slider; 214. a roller; 215. a second chute; 22. an adjustment assembly; 221. a connecting rod; 222. a third chute; 223. a second slider; 224. an adjusting bolt; 225. a connection hole; 226. installing a pipe; 227. a fixing bolt; 23. a contact assembly; 231. a slide shaft; 232. a limiting plate; 233. a contact plate; 234. an elastic member; 24. dial gauge.

Detailed Description

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art in a specific case.

Additional aspects and advantages of the utility model will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

As shown in fig. 1 and 2, the crank circle runout detection device comprises a base 1, wherein the top of the base 1 is in transmission connection with a detection mechanism 2;

As shown in fig. 3, the base 1 comprises a base body 101, a first chute 102, a driving piece 103, a bidirectional screw 104 and a limiting shaft 105, wherein the first chute 102 is formed in the top of the base body 101, the driving piece 103 is fixedly installed on one side of the base body 101, the bidirectional screw 104 is arranged at the output end of the driving piece 103, and the limiting shaft 105 is fixedly connected inside the first chute 102;

As shown in fig. 4, the detection mechanism 2 comprises a support assembly 21, an adjusting assembly 22, a contact assembly 23 and a dial indicator 24, wherein one side of the top of the support assembly 21 is rotatably connected with the adjusting assembly 22, the contact assembly 23 is slidably connected to the adjusting assembly 22, and the dial indicator 24 is arranged on the adjusting assembly 22;

As shown in fig. 2 and 5, the supporting component 21 comprises a supporting frame 211, a connecting block 212, a first sliding block 213, a roller 214 and a second sliding groove 215, wherein the bottom of the supporting frame 211 is fixedly connected with the connecting block 212 and the first sliding block 213, the connecting block 212 is in transmission connection with the driving piece 103 through a bidirectional screw 104, the first sliding block 213 is in sliding connection with the inside of the first sliding groove 102 through a limiting shaft 105, the roller 214 is arranged at the bottom of the supporting frame 211, the roller 214 is lapped on the seat 101, and the supporting frame 211 is provided with the second sliding groove 215;

As shown in fig. 4 and 6, the adjusting assembly 22 includes a connecting rod 221, a third sliding groove 222, a second sliding block 223, an adjusting bolt 224, a connecting hole 225, a mounting pipe 226 and a fixing bolt 227, one end of the connecting rod 221 is rotatably connected to the supporting frame 211, the connecting rod 221 is provided with the third sliding groove 222, the second sliding block 223 is slidably connected to the inside of the third sliding groove 222, both sides of the second sliding block 223 are provided with the adjusting bolt 224, the adjusting bolt 224 is slidably connected to the supporting frame 211 through the second sliding groove 215, the connecting hole 225 is provided in the middle of the connecting rod 221, the mounting pipe 226 is fixedly connected to the connecting rod 221, the fixing bolt 227 is provided on the mounting pipe 226, and the dial gauge 24 is mounted on the mounting pipe 226 through the fixing bolt 227;

As shown in fig. 4 and 7, the contact assembly 23 includes a sliding shaft 231, a limiting plate 232, a contact plate 233 and an elastic member 234, the sliding shaft 231 is slidably connected to the connecting rod 221 through the connecting hole 225, one end of the sliding shaft 231 is fixedly connected with the limiting plate 232, one end of the sliding shaft 231 far away from the limiting plate 232 is fixedly connected with the contact plate 233, the elastic member 234 is disposed on the contact plate 233, and the elastic member 234 is located between the contact plate 233 and the connecting rod 221.

The working process of the utility model is as follows:

S1, before use, a driving piece 103 is started, the driving piece 103 drives a bidirectional screw 104 to rotate, the bidirectional screw 104 drives a supporting component 21 to move, and when the position of the supporting component 21 corresponds to the position of a crank journal to be detected, the driving piece 103 is closed to fix the position of the supporting component 21;

S2, then the adjusting bolt 224 is removed from the second sliding block 223, the connecting rod 221 is rotated, and the connecting rod 221 is rotated to one side from the top of the supporting frame 211;

S3, when in use, the crankshaft to be tested is placed on the supporting component 21, then the adjusting component 22 is rotated, and the second sliding block 223 is slid, so that the position of the second sliding block 223 corresponds to the position of the second sliding groove 215;

S4, an adjusting bolt 224 is connected to a second sliding block 223 in a threaded mode, the adjusting assembly 22 is rotated downwards, the adjusting assembly 22 drives the contact assembly 23 and the dial indicator 24 to move, the contact plate 233 is in contact with the crankshaft, and then the adjusting bolt 224 is screwed down to fix the position of the adjusting assembly 22;

S5, the crankshaft can be rotated, the dial indicator 24 is observed and recorded, the circle run-out data of the crankshaft can be detected, the dial indicator 24 and the crankshaft are in a relatively static state in the process of detecting the crankshaft, and errors of detection results caused by position change of the dial indicator 24 in the detecting process are avoided, so that the detecting precision is ensured.

Compared with the prior art, the utility model has the following beneficial effects compared with the prior art:

This bent axle circle detection device that beats, through setting up detection mechanism 2, be convenient for detect the bent axle of different specifications, and be in relative stationary state between amesdial 24 and the bent axle at the in-process to the bent axle detection, avoid the position of amesdial 24 to appear changing in the testing process and lead to the testing result to appear the error to the precision of detection has been ensured.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims.

Claims

1. The utility model provides a bent axle circle detection device that beats which characterized in that: the device comprises a base (1), wherein the top of the base (1) is in transmission connection with a detection mechanism (2);

The detection mechanism (2) comprises a supporting component (21), one side of the top of the supporting component (21) is rotatably connected with an adjusting component (22), the adjusting component (22) is connected with a contact component (23) in a sliding manner, and a dial indicator (24) is arranged on the adjusting component (22);

the adjusting assembly (22) comprises a connecting rod (221), a third sliding groove (222) is formed in the connecting rod (221), a second sliding block (223) is connected inside the third sliding groove (222) in a sliding mode, adjusting bolts (224) are arranged on two sides of the second sliding block (223), a connecting hole (225) is formed in the middle of the connecting rod (221), an installation pipe (226) is fixedly connected to the connecting rod (221), a fixing bolt (227) is arranged on the installation pipe (226), and the dial indicator (24) is installed on the installation pipe (226) through the fixing bolt (227);

The contact assembly (23) comprises a sliding shaft (231), one end of the sliding shaft (231) is fixedly connected with a limiting plate (232), one end, away from the limiting plate (232), of the sliding shaft (231) is fixedly connected with a contact plate (233), and an elastic piece (234) is arranged on the contact plate (233).

2. The crankshaft circle runout detection apparatus according to claim 1, wherein: the base (1) comprises a base body (101), a first sliding groove (102) is formed in the top of the base body (101), a driving piece (103) is fixedly installed on one side of the base body (101), a bidirectional screw (104) is arranged at the output end of the driving piece (103), and a limiting shaft (105) is fixedly connected to the inside of the first sliding groove (102).

3. The crankshaft circle runout detection apparatus according to claim 2, wherein: the support assembly (21) comprises a support frame (211), a connecting block (212) and a first sliding block (213) are fixedly connected to the bottom of the support frame (211), rollers (214) are arranged at the bottom of the support frame (211), and a second sliding groove (215) is formed in the support frame (211).

4. A crank circle run out detection device according to claim 3, wherein: the connecting block (212) is in transmission connection with the driving piece (103) through the bidirectional screw rod (104), the first sliding block (213) is in sliding connection with the inside of the first sliding groove (102) through the limiting shaft (105), and the roller (214) is lapped on the base body (101).

5. A crank circle run out detection device according to claim 3, wherein: one end of the connecting rod (221) is rotatably connected to the supporting frame (211), and the adjusting bolt (224) is slidably connected to the supporting frame (211) through the second sliding groove (215).

6. The crankshaft circle runout detection apparatus according to claim 1, wherein: the sliding shaft (231) is slidably connected to the connecting rod (221) through the connecting hole (225), and the elastic piece (234) is located between the contact plate (233) and the connecting rod (221).