CN212988665U

CN212988665U - Bearing pressure measuring machine

Info

Publication number: CN212988665U
Application number: CN202021846060.2U
Authority: CN
Inventors: 胡恩泽
Original assignee: Ningbo Xuanchi Bearing Co ltd
Current assignee: Ningbo Xuanchi Bearing Co ltd
Priority date: 2020-08-30
Filing date: 2020-08-30
Publication date: 2021-04-16
Anticipated expiration: 2030-08-30

Abstract

The utility model relates to a bearing pressure measuring machine, including the under casing and locating component and the pressure measuring component of locating the under casing top, locating component locates the left side of pressure measuring component, and the pressure measuring component includes electric jar, movable plate, buffer unit, back piece, dog, screw, sleeve, pressure sensor, clamp plate and spring, and the electric jar is fixed in the upside of under casing, and the movable plate transversely is fixed on the flexible end of electric jar, and the back piece is vertically fixed on the upper plane of movable plate and is located the right side of cylinder, and the sleeve transversely is fixed in the left side of back piece; the spring, the pressing plate and the pressure sensor are sequentially arranged in the sleeve from left to right; the utility model realizes the flexible indirect contact between the sensing end of the pressure sensor and the end surface of the bearing by means of the cylinder, the spring and the pressing plate, thereby effectively playing a buffer function to prevent the pressure sensor from being damaged; in addition, the counter bore on the cylinder body is sleeved outside the bearing to prevent the bearing from deviating, and meanwhile, the through hole on the cylinder body ensures the sliding levelness of the rotating shaft, so that the induction end of the pressure sensor is uniformly stressed to improve the testing accuracy.

Description

Bearing pressure measuring machine

Technical Field

The utility model relates to a bearing pressure measuring machine.

Background

The rolling bearing is a precise mechanical element which changes sliding friction between a running shaft and a shaft seat into rolling friction so as to reduce friction loss, and generally comprises an inner ring, an outer ring, a rolling body and a retainer, wherein when the rolling bearing bears overlarge axial pressure, the inner ring and the outer ring of the bearing can mutually shift, so that the maximum axial pressure value which can be borne by the rolling bearing needs to be tested before delivery; when the existing bearing is used for testing pressure, the sensing end of the pressure sensor is directly in rigid contact with the end face of the bearing, the pressure sensor is easy to damage, the sensing end of the pressure sensor is stressed unevenly, the testing accuracy is low, and further improvement is to be achieved.

SUMMERY OF THE UTILITY MODEL

To the current situation of above-mentioned prior art, the utility model aims to solve the technical problem that a can effectively prevent pressure sensor from damaging to the bearing pressure machine of surveying of the degree of accuracy has been improved is provided.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: a bearing pressure measuring machine is characterized by comprising a bottom box, a positioning assembly and a pressure measuring assembly, wherein the positioning assembly and the pressure measuring assembly are arranged above the bottom box; the guide rails comprise two guide rails, the two guide rails are fixed on the upper plane of the moving plate and symmetrically arranged in parallel in a front-back mode, each guide rail is sleeved with a sliding block, the cylinder is transversely arranged above the two sliding blocks, a base plate which is transversely distributed is outwards formed on the lower side of the cylinder, the base plate is fixed on the two sliding blocks, the back block is vertically fixed on the upper plane of the moving plate and arranged on the right side of the cylinder, and the sleeve is transversely fixed on the left side of the back block; the spring, the pressing plate and the pressure sensor are sequentially arranged in the sleeve from left to right, and the pressure sensor is fixed on the left side of the back block; the right end of the cylinder is concentrically inserted into the sleeve, the left end and the right end of the spring respectively abut against the right end of the cylinder and the left side of the pressing plate, the sensing end of the pressure sensor is arranged leftwards and is attached to the right side of the pressing plate, the stop block is vertically fixed at the left end of the moving plate, and the screw is transversely inserted and screwed into the stop block; the right end of the screw is tightly propped against the left side of the seat plate; a counter bore is formed in the center of the left end of the column body, and a through hole is formed in the center of the bottom face of the counter bore.

Preferably, locating component includes cushion, bottom plate, kicking block, cylinder and locating piece, the top of under casing is transversely located to the bottom plate, be fixed with the cushion of two front and back symmetric distributions between bottom plate and the under casing, the locating piece is fixed on the upper plane of bottom plate, the kicking block is fixed on the upper plane of bottom plate and is located the left side of locating piece, the left side at the kicking block is fixed to the cylinder, the flexible end of cylinder transversely passes the kicking block right and stretches out the left side of locating piece.

Preferably, the upper end of the positioning block is provided with an arc-shaped sinking groove, and the inner walls of the left side and the right side of the sinking groove are provided with U-shaped grooves which are symmetrically distributed.

Compared with the prior art, the utility model has the advantages of: the utility model realizes the flexible indirect contact between the sensing end of the pressure sensor and the end surface of the bearing by means of the cylinder, the spring and the pressing plate, thereby effectively playing a buffer function to prevent the pressure sensor from being damaged; in addition, the counter bore on the cylinder body is sleeved outside the bearing to prevent the bearing from deviating, and meanwhile, the through hole on the cylinder body ensures the sliding levelness of the rotating shaft, so that the induction end of the pressure sensor is uniformly stressed to improve the testing accuracy.

Drawings

FIG. 1 is a left front side structural view of the present invention;

FIG. 2 is a right front structural view of the present invention;

fig. 3 is a front sectional view of the cushion assembly of the present invention.

Detailed Description

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by those of ordinary skill in the art to which the invention belongs. The use of "first," "second," and similar terms in the description herein do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

To maintain the following description of the embodiments of the present invention clear and concise, detailed descriptions of well-known functions and components may be omitted.

As shown in fig. 1 to 3, a bearing measurement press machine comprises a bottom case 1, and a positioning assembly and a pressure measurement assembly which are arranged above the bottom case 1, wherein the positioning assembly is arranged on the left side of the pressure measurement assembly, the pressure measurement assembly comprises an electric cylinder 7, a moving plate 8, a buffer assembly, a back block 12, a stop block 14, a screw 15, a sleeve 16, a pressure sensor 17, a pressure plate 18 and a spring 19, the electric cylinder 7 is fixed on the upper side of the bottom case 1, the moving plate 8 is transversely fixed on the telescopic end of the electric cylinder 7, and the buffer assembly comprises a guide rail 9, a sliding block 10 and a column body 11; the guide rails 9 comprise two, the two guide rails 9 are fixed on the upper plane of the moving plate 8 and are symmetrically arranged in parallel in a front-back mode, a sliding block 10 is sleeved on each guide rail 9, the column 11 is transversely arranged above the two sliding blocks 10, the lower side of the column 11 outwards forms a seat plate 111 which is transversely distributed, the seat plate 111 is fixed on the two sliding blocks 10, the back block 12 is vertically fixed on the upper plane of the moving plate 8 and is arranged on the right side of the column 11, and the sleeve 16 is transversely fixed on the left side of the back block 12; the spring 19, the pressing plate 18 and the pressure sensor 17 are sequentially arranged in the sleeve 16 from left to right, and the pressure sensor 17 is fixed on the left side of the back block 12; the right end of the column body 11 is concentrically inserted into the sleeve 16, the left end and the right end of the spring 19 respectively support against the right end of the column body 11 and the left side of the pressing plate 18, the sensing end of the pressure sensor 17 is arranged leftwards and is attached to the right side of the pressing plate 18, the stop block 14 is vertically fixed at the left end of the movable plate 8, and the screw 15 is transversely inserted and screwed into the stop block 14; the right end of the screw 15 is tightly pressed against the left side of the seat plate 111; the center of the left end of the column body 11 is provided with a counter bore 112, and the center of the bottom surface of the counter bore 112 is provided with a through hole 113.

The positioning assembly comprises cushion blocks 2, a bottom plate 3, a supporting block 4, a cylinder 5 and a positioning block 6, the bottom plate 3 is transversely arranged above the bottom box 1, two cushion blocks 2 which are symmetrically distributed front and back are fixed between the bottom plate 3 and the bottom box 1, the positioning block 6 is fixed on the upper plane of the bottom plate 3, the supporting block 4 is fixed on the upper plane of the bottom plate 3 and is arranged on the left side of the positioning block 6, the cylinder 5 is fixed on the left side of the supporting block 4, and the telescopic end of the cylinder 5 transversely penetrates through the supporting block 4 rightwards and extends out of the left side of the positioning block 6; the upper end of locating piece 6 has been seted up the heavy groove 61 of arc, has all seted up the U type groove 62 of a mutual symmetric distribution on the left and right sides inner wall of heavy groove 61.

The working principle is as follows: downwards embedding the rotor 20 into the arc-shaped sinking groove 61, respectively embedding two ends of the rotating shaft 21 inserted into the center of the rotor 20 into the two U-shaped grooves 62, outwards extending the telescopic end of the driving cylinder 5 to tightly push the left end of the rotating shaft 21, sleeving the bearing 22 at the right end of the rotating shaft 21 and attaching the left end of the bearing to the right end of the stepped shaft arranged on the rotating shaft 21; then the telescopic end of the electric cylinder 7 is driven to extend outwards, and the buffer assembly, the stop block 14 and the back block 12 are driven to move leftwards by the moving plate 8, the right end of the rotating shaft 21 penetrates through the counter bore 112 and is inserted into the through hole 113, until the bearing 22 is embedded in the counterbore 112, as the telescopic end of the electric cylinder 7 continues to extend outwards, the cylinder 11 cannot move leftwards any more and is moved rightwards along the two guide rails 9 by the two sliders 10, thereby compressing the spring 19 and moving the left side of the seat plate 111 away from the right end of the screw 15, while transmitting the reaction force from the bearing 22 to the sensing end of the pressure sensor 17 via the pressure plate 18, then, the telescopic end of the driving electric cylinder 7 continues to extend outwards until the inner ring and the outer ring of the bearing 22 displace because the left end of the bearing cannot bear the pressure from the right end, and the pressure value of the pressure sensor 17 at the moment is recorded, so that the maximum axial pressure value which can be borne by the bearing 22 is measured; after the test is finished, the telescopic end of the driving electric cylinder 7 contracts inwards, and then the cylinder 11 is driven to move rightwards to leave the bearing 22 according to the same principle, when the cylinder 11 moves leftwards under the action of the rebound force of the spring 19 until the left side of the seat plate 111 abuts against the right end of the screw 15 again, and the bearing 22 is replaced for the next test.

The utility model realizes the flexible indirect contact between the sensing end of the pressure sensor and the end surface of the bearing by means of the cylinder 11, the spring 19 and the pressing plate 18, thereby effectively playing a buffer function to prevent the pressure sensor from being damaged; in addition, the counter bore 112 on the cylinder 11 is sleeved outside the bearing 22 to prevent the bearing 22 from deviating, and meanwhile, the through hole 113 on the cylinder 11 ensures the sliding levelness of the rotating shaft 21, thereby ensuring that the sensing end of the pressure sensor is uniformly stressed to improve the testing accuracy.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that various changes in the embodiments and modifications thereof may be made, and equivalents may be substituted for elements thereof; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. A bearing pressure measuring machine is characterized by comprising a bottom box, a positioning assembly and a pressure measuring assembly, wherein the positioning assembly and the pressure measuring assembly are arranged above the bottom box; the guide rails comprise two guide rails, the two guide rails are fixed on the upper plane of the moving plate and symmetrically arranged in parallel in a front-back mode, each guide rail is sleeved with a sliding block, the cylinder is transversely arranged above the two sliding blocks, a base plate which is transversely distributed is outwards formed on the lower side of the cylinder, the base plate is fixed on the two sliding blocks, the back block is vertically fixed on the upper plane of the moving plate and arranged on the right side of the cylinder, and the sleeve is transversely fixed on the left side of the back block; the spring, the pressing plate and the pressure sensor are sequentially arranged in the sleeve from left to right, and the pressure sensor is fixed on the left side of the back block; the right end of the cylinder is concentrically inserted into the sleeve, the left end and the right end of the spring respectively abut against the right end of the cylinder and the left side of the pressing plate, the sensing end of the pressure sensor is arranged leftwards and is attached to the right side of the pressing plate, the stop block is vertically fixed at the left end of the moving plate, and the screw is transversely inserted and screwed into the stop block; the right end of the screw is tightly propped against the left side of the seat plate; a counter bore is formed in the center of the left end of the column body, and a through hole is formed in the center of the bottom face of the counter bore.

2. The bearing measurement press machine as claimed in claim 1, wherein the positioning assembly comprises a cushion block, a bottom plate, a supporting block, a cylinder and a positioning block, the bottom plate is transversely arranged above the bottom box, two cushion blocks which are symmetrically distributed front and back are fixed between the bottom plate and the bottom box, the positioning block is fixed on the upper plane of the bottom plate, the supporting block is fixed on the upper plane of the bottom plate and arranged on the left side of the positioning block, the cylinder is fixed on the left side of the supporting block, and the telescopic end of the cylinder transversely penetrates through the supporting block to the right and extends out of the left side of the positioning block.

3. The bearing measurement press machine according to claim 2, wherein an arc-shaped sinking groove is formed in the upper end of the positioning block, and the inner walls of the left side and the right side of the sinking groove are provided with U-shaped grooves which are symmetrically distributed with each other.