CN217687137U

CN217687137U - Crankshaft runout detection tool

Info

Publication number: CN217687137U
Application number: CN202220964398.0U
Authority: CN
Inventors: 黄锡祥; 邓发青
Original assignee: Huizhou Shenpu Industrial Co ltd
Current assignee: Huizhou Shenpu Industrial Co ltd
Priority date: 2022-04-25
Filing date: 2022-04-25
Publication date: 2022-10-28
Anticipated expiration: 2032-04-25

Abstract

The utility model discloses a bent axle detection instrument of beating, V type piece and base including the alternate segregation, the base is located the below of V type piece, adopt pneumatic spring to carry out swing joint between the both sides of base and V type piece bottom, the base with be equipped with adjusting screw between the central point of V type piece bottom puts, through the rotating of making a round trip adjusting screw can adjust the height that sets up of V type piece. The utility model discloses a set up single adjustment screw and put implementation to lift up or the drop-down to the central point of V type piece to evenly set up pneumatic spring in V type piece both sides, utilize the even reverse pulling force of pneumatic spring, guaranteed the steady lift of V type piece.

Description

Crankshaft runout detection tool

Technical Field

The utility model relates to a detection tool's technical field, more specifically say, relate to a bent axle detection instrument of beating.

Background

The journal is one of the important parts of the engine, and the radial runout of the crankshaft is too large, which can directly affect the performance of the main engine of the engine, aggravate the abrasion of the journal, cause the damage of the bearing bush and affect the service life of the bearing bush. The accuracy of the position with high precision (usually expressed as radial run-out) is defined to be 0.001 to 0.005mm, and the accuracy of the position with high precision is generally defined to be 0.01 to 0.03mm, according to the requirements of use, so that the detection of run-out errors is an important means for checking the performance of the shaft.

When measuring diameter direction circle and beating, need use bent axle detection tool that beats, detection tool adopts V type piece to erect the both ends of bent axle, to not unidimensional bent axle, still need highly adjusting V type piece, make the bent axle that waits to detect can aim at instrumentation, under the in-service use state, the height of V type piece is accurate regulation not easily, because the error of manual operation, too big or little difference in height always can appear in the both sides in V type groove, need debug repeatedly just can reach accurate level. Therefore, the height adjustment of the current V-shaped block is quite labor-consuming.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a first-hand objective is to the problem that prior art exists, provides a crankshaft detection instrument of beating, utilizes single bolt to go up and down to V type piece to the pneumatic spring who utilizes V type piece both sides is taut with it, makes V type piece reach steady lift.

The utility model discloses the technological effect that will reach realizes through following technical scheme:

the utility model provides a bent axle detection instrument of beating, includes V type piece and the base of alternate segregation, the base is located the below of V type piece, adopt pneumatic spring to carry out swing joint between the both sides of base and V type piece bottom, the base with be equipped with adjusting screw between the central point of V type piece bottom puts, through making a round trip the rotating adjusting screw can adjust the height that sets up of V type piece.

The utility model utilizes a single adjusting screw to lift the central position of the V-shaped block, and pneumatic springs are arranged on the two sides of the V-shaped block, and the resilience force of the pneumatic springs is utilized to apply even tension force to the V-shaped block, thereby improving the stability of the V-shaped block in the lifting process; the utility model discloses compare in current bilateral bolt regulation, can improve the condition that is difficult to align that highly uneven leads to between two bolts for the altitude mixture control operation of V type piece is more concise swift.

Preferably, the base is provided with a through hole under the center of the bottom of the V-shaped block, the bottom wall of the V-shaped block is correspondingly provided with a convex adjusting screw, the end of the adjusting screw penetrates into the through hole, a gap exists between the V-shaped block and the base, the adjusting screw is in threaded connection with a nut at the gap, and the adjusting screw is driven to rotate upwards or downwards by rotating the nut back and forth, so that the V-shaped block is driven to ascend or descend. The nut is arranged at the position between the V-shaped block and the base, so that the height of the adjusting screw can be effectively adjusted through the nut, the V-shaped block and the gap space between the bases are fully utilized, and the whole detection tool is smaller.

Preferably, each through hole is internally provided with a bearing, the outer ring of each bearing is in interference fit with the through hole, and the inner ring of each bearing is in interference fit with the adjusting screw rod. Through the arrangement of the bearing, the screw rod can be fixed in the through hole in the longitudinal direction, and the phenomenon that the screw rod is lifted upwards when the nut is twisted is avoided, so that the action of the V-shaped block is invalid; and with the help of the bearing, the screw rod can still rotate around the axis of the screw rod, so that the rotary lifting and the rotary falling of the V-shaped block are driven.

Preferably, the bottom wall of the V-shaped block aligned with the through hole is provided with an internal threaded hole, and the adjusting screw penetrates through the through hole and is screwed into the internal threaded hole.

The utility model discloses utilize the global screw thread characteristics of adjusting screw, connect the nut soon between base and V type piece, according to threaded connection's characteristics, through forward or reverse rotating the nut to the rotation that drives adjusting screw is upwards perhaps rotatory downwards, should connect process scientific and reasonable, simple and convenient effective soon.

Preferably, the pneumatic springs are arranged two by two and are symmetrically arranged relative to the V-shaped groove of the V-shaped block respectively.

The utility model discloses a pneumatic spring is equipped with pneumatic spring as the motion complementary unit of V type piece through the both sides correspondence at V type piece, and the pneumatic spring of both sides provides the potential energy that resets to V type piece jointly, can guarantee that the difficult emergence of the lift in-process of V type piece is toppled.

Preferably, the two pneumatic springs are of the same specification. The pneumatic springs on the two sides provide uniform reset potential energy for the V-shaped block.

Preferably, the pneumatic spring is a free air-stop spring. The free air stopping spring (also called friction type air spring and balance type air spring) is mainly used in the fields of kitchen furniture and medical equipment, etc., and is characterized by that it has no need of any external structure and can be stopped at any position in the course of travel, so that it can attain the working characteristic of free stopping, and can make the free air stopping spring be extensively used in the equipment industry.

Preferably, the pneumatic spring comprises a pressure cylinder and a piston rod inserted on the pressure cylinder, the end part of the piston rod far away from the pressure cylinder is fixedly connected with the bottom wall of the V-shaped block, and the bottom end of the pressure cylinder is fixedly connected with the base.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses a set up single adjusting screw and put the implementation to lift up or the drop-down to the central point of V type piece to evenly set up pneumatic spring in V type piece both sides, utilize the even reverse pulling force of pneumatic spring, guaranteed the steady lift of V type piece.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

FIG. 1 is a schematic structural view of the present embodiment;

in the figure, the 1-V block; 2-a base; 3-a pneumatic spring; 31-a pressure cylinder; 32-a piston rod; 4-adjusting the screw rod; 5-a through hole; 6-an internal threaded hole; 7-a nut; 8-bearing.

Detailed Description

The following describes the present invention with reference to the accompanying drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features related to the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

Referring to fig. 1, the present embodiment provides a crankshaft runout detection tool, including a V-shaped block 1 and a base 2 that are separated from each other, where the base 2 is located below the V-shaped block 1, the base 2 is movably connected to two sides of the bottom of the V-shaped block 1 by a pneumatic spring 3, an adjusting screw 4 is disposed between the base 2 and the center of the bottom of the V-shaped block 1, and the setting height of the V-shaped block 1 can be adjusted by rotating the adjusting screw 4 back and forth.

The central position of the bottom of the V-shaped block 1 is the lower position of the lowest point of a V groove of the V-shaped block 1, the central position of the V-shaped block 1 is lifted by utilizing a single adjusting screw rod 4, the pneumatic springs 3 are arranged on two sides of the V-shaped block 1, the V-shaped block 1 is uniformly tensioned by utilizing the resilience force of the pneumatic springs 3, and therefore the stability of the V-shaped block 1 in the lifting process is improved; the utility model discloses compare in current bilateral bolt regulation, can improve the condition that is difficult to align that highly uneven leads to between two bolts for the altitude mixture control operation of V type piece 1 is more concise swift.

Specifically, a through hole 5 is arranged under the center of the bottom of the V-shaped block 1 of the base, an internal threaded hole 6 is arranged on the bottom wall of the V-shaped block 1 aligned with the through hole 5, the end of the adjusting screw rod 4 penetrates through the through hole 5, the adjusting screw rod 4 penetrates through the through hole 5 and is screwed into the internal threaded hole 6, a gap exists between the V-shaped block 1 and the base 2, a nut 7 is in threaded connection with the adjusting screw rod 4 at the gap, and the adjusting screw rod 4 is driven to rotate upwards or downwards by back and forth rotating the nut 7, so that the V-shaped block 1 is driven to ascend or descend.

In order to ensure that the driving of the nut 7 is effectively carried out, a bearing 8 is arranged in each through hole 5, the outer ring of each bearing 8 is in interference fit with the through hole 5, and the inner ring of each bearing 8 is in interference fit with the adjusting screw rod 4.

In this embodiment, the pneumatic springs 3 are arranged two by two and are symmetrically arranged relative to the V-shaped groove of the V-shaped block 1, the pneumatic springs 3 on the two sides are random air-stopping springs of the same specification, the pneumatic spring 3 includes a pressure cylinder 31 and a piston rod 32 inserted in the pressure cylinder 31, the end of the piston rod 32 far away from the pressure cylinder 31 is fixedly connected with the bottom wall of the V-shaped block 1, and the bottom end of the pressure cylinder 31 is fixedly connected with the base 2.

The detection tool adopts the pneumatic spring 3 as a motion auxiliary mechanism of the V-shaped block 1, and the air stopping spring at will is characterized in that the air stopping spring can be stopped at any position in the stroke without any external structure, so that the working effect of stopping at will can be achieved. The utility model discloses correspond in the both sides of V type piece 1 and be equipped with pneumatic spring 3, the pneumatic spring 3 of both sides provides even reset potential energy to V type piece 1, can guarantee that the difficult emergence of the lift in-process of V type piece 1 topples.

To sum up, the utility model discloses a set up single adjusting screw 4 and put implementation to lift up or drop-down to the central point of V type piece to evenly set up pneumatic spring 3 in 1 both sides of V type piece, utilize the even reverse pulling force of pneumatic spring 3, guaranteed the steady lift of V type piece 1, thereby can carry out steady lift with placing the bent axle on V type piece 1.

In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in the embodiments without departing from the principles and spirit of the invention, and these embodiments are still within the scope of the invention.

Claims

1. The utility model provides a bent axle detection instrument of beating, its characterized in that, including V type piece and the base of alternate segregation, the base is located the below of V type piece, adopt pneumatic spring to carry out swing joint between the both sides of base and V type piece bottom, the base with be equipped with adjusting screw between the central point of V type piece bottom puts, through making a round trip the rotating adjusting screw can adjust the height that sets up of V type piece.

2. The crankshaft run-out detection tool according to claim 1, wherein the base is provided with a through hole right below the center of the bottom of the V-shaped block, the bottom wall of the V-shaped block is correspondingly provided with the protruding adjusting screw, the end of the adjusting screw penetrates into the through hole, a gap exists between the V-shaped block and the base, the adjusting screw is in threaded connection with a nut at the gap, and the adjusting screw is driven to rotate upwards or downwards by back and forth rotation of the nut, so that the V-shaped block is driven to ascend or descend.

3. The crankshaft run-out detection tool according to claim 2, wherein a bearing is arranged in each through hole, an outer ring of each bearing is in interference fit with the through hole, and an inner ring of each bearing is in interference fit with the adjusting screw.

4. The crankshaft run-out detection tool according to claim 2, wherein the V-shaped block is provided with an internal threaded hole in a bottom wall aligned with the through hole, and the adjusting screw penetrates through the through hole and is screwed into the internal threaded hole.

5. The crankshaft run-out detection tool according to claim 1, wherein the pneumatic springs are arranged two by two and are symmetrically arranged relative to the V-shaped groove of the V-shaped block respectively.

6. A crankshaft run-out detection tool according to claim 1, wherein the two pneumatic springs are of the same specification.

7. A crankshaft runout detection tool according to claim 1, where the pneumatic spring is a free air spring.

8. The crankshaft run-out detection tool according to claim 1, wherein the pneumatic spring comprises a pressure cylinder and a piston rod inserted in the pressure cylinder, the end of the piston rod far away from the pressure cylinder is fixedly connected with the bottom wall of the V-shaped block, and the bottom end of the pressure cylinder is fixedly connected with the base.