CN220912258U

CN220912258U - Spacer retest device

Info

Publication number: CN220912258U
Application number: CN202322901605.5U
Authority: CN
Inventors: 耿琪峰
Original assignee: Wuxi Mingheng Hybrid Power Technology Co ltd
Current assignee: Wuxi Mingheng Hybrid Power Technology Co ltd
Priority date: 2023-10-27
Filing date: 2023-10-27
Publication date: 2024-05-07
Anticipated expiration: 2033-10-27

Abstract

The utility model discloses a gasket retest device, which comprises a shell with a measuring cavity, an upper detection unit, a movable measurement unit and a lower detection unit, wherein the upper detection unit, the movable measurement unit and the lower detection unit are sequentially arranged from top to bottom and at least partially positioned in the measuring cavity; wherein, the upper detection unit at least comprises an upper measuring meter fixedly arranged on the shell; the lower detection unit at least comprises a lower measuring meter fixedly arranged on the shell; the movable measuring unit comprises a measuring rod connected with the upper detecting unit through an elastic reset element extending from top to bottom, a first measuring head connected to the upper end face of the measuring rod, and a second measuring head connected to the lower end face of the measuring rod, and a measuring gap for placing a piece to be measured is formed between the second measuring head and the lower measuring meter. The effect of quick measurement, high measurement accuracy and relatively low measurement cost is realized.

Description

Spacer retest device

Technical Field

The utility model relates to the structural field of gasket detection equipment, in particular to a gasket retest device.

Background

A transmission system commonly used in industry, such as a gearbox, is structurally provided with a large number of conical rollers or angular contact bearings, so that the requirement on the clearance accuracy in the axial direction is high, and the axial clearance needs to be accurately controlled to achieve proper axial pretension.

The control of the axial clearance is generally achieved by selecting an appropriate adjustment gasket, and once the gasket is selected, the problem may cause the inner ring and the outer ring of the bearing to be excessively tightly or excessively loose, thereby affecting the whole transmission structure. Therefore, before installation, it is necessary to further retest the selected gasket to review whether the gasket thickness meets the use requirement.

At present, the check is generally carried out manually by adopting a measuring caliper and the like, the measuring efficiency and the measuring result are closely related to the experience of an operator and the like, and the manual measurement is usually relatively low in efficiency and poor in measuring accuracy controllability.

Disclosure of utility model

Aiming at the prior art, the utility model aims to solve the problems of complex operation, low measurement precision, high price of retesting equipment and the like in the prior art when the gasket is retested, thereby providing the gasket retesting device which has the advantages of quick measurement, high measurement accuracy and relatively low measurement cost.

In order to achieve the above object, the present utility model provides a gasket retesting device, which includes a housing formed with a measurement cavity, an upper detection unit, a moving measurement unit and a lower detection unit sequentially disposed from top to bottom and at least partially located in the measurement cavity; wherein,

The upper detection unit at least comprises an upper measuring meter fixedly arranged on the shell;

the lower detection unit at least comprises a lower measuring meter fixedly arranged on the shell;

The movable measuring unit comprises a measuring rod connected with the upper detecting unit through an elastic reset element extending from top to bottom, a first measuring head connected to the upper end face of the measuring rod, and a second measuring head connected to the lower end face of the measuring rod, and a measuring gap for placing a piece to be measured is formed between the second measuring head and the lower measuring meter.

Preferably, the upper meter at least comprises a first measuring shaft and a first measuring head positioned at the lower end of the first measuring shaft;

The first measuring shaft penetrates through the shell and extends downwards, and the first measuring head is positioned in the measuring cavity;

The first bushing is fixedly sleeved outside the first measuring shaft outside the shell, and the first bushing is fixedly connected with the shell through a first mounting block.

Preferably, the lower meter at least comprises a second measuring shaft and a second measuring head positioned at the lower end of the second measuring shaft;

the second measuring shaft penetrates through the shell and extends upwards, and the second measuring head is positioned in the measuring cavity;

the second bushing is fixedly sleeved outside the second measuring shaft outside the shell, and the second bushing is fixedly connected with the shell through a second mounting block.

Preferably, the housing includes an upper case, a middle case and a lower case sequentially disposed from top to bottom, and an opening matching with the measurement gap is formed between the middle case and the lower case.

Preferably, the upper shell, the middle shell and the lower shell are fixedly connected in a matched manner through roller plungers and positioning pins which are arranged in a penetrating manner.

Preferably, the measuring rod is connected with the inner wall of the shell through a guide bearing;

The inside of shell still is provided with and is used for carrying out spacing guide pin to the angle of measuring staff.

Preferably, the first measuring head is a plane measuring head;

the second measuring head is a spherical measuring head.

Preferably, the lower end face of the shell is also connected with a bottom plate through a stand column;

the bottom plate is also provided with a group of handles which are oppositely arranged.

Preferably, the elastic restoring element is a set of oppositely arranged springs.

According to the technical scheme, the upper measuring gauge and the lower measuring gauge are oppositely arranged, the measuring rod is arranged between the upper measuring gauge and the lower measuring gauge through the elastic reset element, and the first measuring head and the second measuring head are respectively arranged at two ends of the measuring rod. The whole structure can directly acquire the data of the lower surface of the gasket to be measured based on the lower measuring table, and the upper measuring table acquires the data of the upper surface of the gasket to be measured through the first measuring head and the second measuring head, so that the thickness data of the gasket to be measured can be acquired more accurately and rapidly through the acquisition of the two plane data in a targeted manner. Meanwhile, the whole data are obtained by two measuring tables, and the repeatability and the accuracy are further improved.

Additional features and advantages of the utility model will be set forth in the detailed description which follows.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model, and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the description serve to explain, without limitation, the utility model. In the drawings:

FIG. 1 is a schematic diagram of a spacer retest device according to the present utility model;

FIG. 2 is a rear view of a shim retesting apparatus according to the present utility model;

FIG. 3 is a top view of a shim retesting apparatus according to the present utility model;

FIG. 4 is a side cross-sectional view of a shim retesting apparatus provided by the present utility model;

FIG. 5 is an enlarged partial view of portion A of FIG. 4;

FIG. 6 is a front cross-sectional view of a shim retesting apparatus provided by the present utility model;

FIG. 7 is another front cross-sectional view of a shim retesting apparatus provided by the present utility model;

Fig. 8 is a schematic structural diagram of the spacer retest device provided by the utility model in a measurement state.

Description of the reference numerals

1-A housing; a 2-upper detection unit; 3-moving the measuring unit; 4-a lower detection unit; 5-measuring the gap; 6-a gasket to be tested;

11-an upper housing; 12-middle shell; 13-a lower housing; 14-opening; 15-calibrating blocks; 16-roller plunger; 17-locating pins; 18-stand columns; 19-a bottom plate; 20-handle;

21-upper test meter; 22-a first bushing; 23-a first mounting block;

211-a first measuring axis; 212-a first measurement head;

31-an elastic return element; 32-measuring rod; 33-a first gauge head; 34-a second gauge head; 35-a guide bearing; 36-a guide pin;

41-lower test table; 42-a second bushing; 43-second mounting block.

Detailed Description

The following describes specific embodiments of the present utility model in detail. It should be understood that the detailed description and specific examples, while indicating and illustrating the utility model, are not intended to limit the utility model.

The following describes specific embodiments of the present utility model in detail with reference to the drawings.

As shown in fig. 1 to 8, the present utility model provides a spacer retest device, specifically, including two digital display indicators (i.e., an upper indicator 21 and a lower indicator 41), a first bushing 22, a second bushing 42, a first mounting block 23, an upper housing 11, an elastic reset element 31 (specifically, a spring may be used), a roller plunger 16, a measuring rod 32, a first measuring head 33 (specifically, a planar measuring head may be used), a second measuring head 34 (specifically, a spherical measuring head may be used), a guide bearing 35, a middle housing 12, a lower housing 13, a positioning pin 17, a guide pin 36, a second mounting block 43, a stand 18, a bottom plate 19, and a handle 20.

One of the digital display indicators (namely, the upper meter 21) is arranged on the first mounting block 23 through the first bushing 22 and is connected and fastened with the upper shell 11 together to form the upper detection unit 2.

The other digital display indicator (namely, the lower meter 41) is arranged on the second mounting block 43 through the second bushing 42 and is connected and fastened with the lower shell 13 together to form the lower detection unit 4.

The plane measuring head and the spherical measuring head are respectively arranged at the upper end and the lower end of the measuring rod 32, are simultaneously arranged on the middle shell 12 through the guide bearing 35, and are used for determining the angle through the guide pin 36, the roller plunger 16 is also arranged with the middle shell 12 through threads, the installation height of the roller plunger 16 can be adjusted through threads, and finally the mobile measuring unit 3 is formed.

The upper detection unit 1 and the mobile measurement unit 3 are connected with the upper shell 11 and the middle shell 12 through elastic reset elements 31 (namely springs for measurement) and bolts, and the upper detection unit 1 and the mobile measurement unit 3 are mainly positioned in cavities inside the upper shell 11 and the middle shell 12.

The lower shell 13 for mounting the lower detection unit 4 is connected with the middle shell 12 through two positioning pins 17 and bolts, and then the upright post 18, the bottom plate 19 and the handle 20 are further mounted on the lower shell 13 to form the whole gasket retesting device.

The gasket retest device adopts a measurement mode of contrast measurement, and the working principle is as follows: the operator takes the calibration block 15 with the calibration value t and plugs the calibration block into the measurement gap 5 in the retest device through the opening 14, and the upper measuring meter 21 and the lower measuring meter 41 are respectively zeroed. Then the operator takes out the calibration block 15, takes out the pad 6 to be measured which needs to be re-measured, plugs the pad 6 into the opening 14 of the re-measuring device, at this time, the measuring heads of the upper and lower digital display indicators directly or indirectly (the first measuring head 212 of the upper measuring meter 21 is indirectly contacted with the upper surface of the pad 6 to be measured through the moving measuring unit 3, and the second measuring head of the lower measuring meter 22 can be directly contacted with the lower surface of the pad 6 to be measured) respectively contact with the upper and lower surfaces of the pad 6 to be measured, the compression amount of the measuring head is changed, and the readings h1 and h2 of the digital display indicators (the upper measuring meter 21) and the digital display indicators (the lower measuring meter 41) are respectively read.

The final measurement result is calculated by the equation h=t+h1+h2, where h is the value to be finally measured, t is the calibration value of the calibration block 15, h1 is the measurement value of the digital display indicator (upper indicator 21), and h2 is the measurement value of the digital display indicator (lower indicator 41), and the measurement is finally completed.

The second measuring head of the lower measuring meter 41 is directly contacted with the lower bottom surface of the gasket 6 to be measured during measurement, and corresponding variation values are measured; the upper plane of the spacer 6 to be measured is in direct contact with the spherical measuring head and is in contact with the first measuring head 212 of the upper measuring meter 21 through the measuring rod 32 and the plane measuring head, and under the action of the measuring spring, the plane measuring head contacted on the upper measuring meter 21 moves along with the axial movement of the spherical measuring head to measure the corresponding change value; the upper digital display indicator and the lower digital display indicator are used for simultaneously measuring the points of the upper plane and the lower plane of the to-be-measured gasket 6, comparing the points with the numerical value of the calibration block 15, finally obtaining a measurement result through calculation, and verifying whether the thickness of the to-be-measured gasket 6 meets the requirement or not, and finally completing measurement.

The arrangement mode has a compact overall structure, can measure gaskets 6 to be measured with various sizes, and meanwhile, the spherical measuring head is in point contact with the gaskets 6 to be measured, so that the measurement accuracy is improved, the upper detection unit 2 and the lower detection unit 4 can measure simultaneously, the problem of inaccurate measurement caused by individual difference of the gaskets 6 to be measured is also solved, and the measurement accuracy and the repeatability are further improved by adopting a comparison measurement method.

The preferred embodiments of the present utility model have been described in detail above, but the present utility model is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present utility model within the scope of the technical concept of the present utility model, and all the simple modifications belong to the protection scope of the present utility model.

In addition, the specific features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various possible combinations are not described further.

Moreover, any combination of the various embodiments of the utility model can be made without departing from the spirit of the utility model, which should also be considered as disclosed herein.

Claims

1. The gasket retest device is characterized by comprising a shell (1) with a measuring cavity, an upper detection unit (2), a movable measurement unit (3) and a lower detection unit (4), wherein the upper detection unit (2), the movable measurement unit (3) and the lower detection unit (4) are sequentially arranged from top to bottom and at least partially positioned in the measuring cavity; wherein,

The upper detection unit (2) at least comprises an upper measuring meter (21) fixedly arranged on the shell (1);

the lower detection unit (4) at least comprises a lower meter (41) fixedly arranged on the shell (1);

The mobile measuring unit (3) comprises a measuring rod (32) connected with the upper detecting unit (2) through an elastic reset element (31) extending from top to bottom, a first measuring head (33) connected to the upper end surface of the measuring rod (32), and a second measuring head (34) connected to the lower end surface of the measuring rod (32), wherein a measuring gap (5) for placing a piece to be measured is formed between the second measuring head (34) and the lower measuring meter (41).

2. A spacer retest device according to claim 1, wherein the upper meter (21) comprises at least a first measuring shaft (211) and a first measuring head (212) at a lower end of the first measuring shaft (211);

The first measuring shaft (211) penetrates through the shell (1) and extends downwards, and the first measuring head (212) is positioned in the measuring cavity;

The outside of the first measuring shaft (211) positioned outside the shell (1) is fixedly sleeved with a first bushing (22), and the first bushing (22) is fixedly connected with the shell (1) through a first mounting block (23).

3. A spacer retest device according to claim 2, wherein the lower meter (41) comprises at least a second measuring shaft and a second measuring head at a lower end of the second measuring shaft;

the second measuring shaft penetrates through the shell (1) and extends upwards, and the second measuring head is positioned in the measuring cavity;

the second bushing (42) is fixedly sleeved outside the second measuring shaft outside the shell (1), and the second bushing (42) is fixedly connected with the shell (1) through a second mounting block (43).

4. A spacer retest device according to any of claims 1-3, wherein the housing (1) comprises an upper shell (11), a middle shell (12) and a lower shell (13) arranged in sequence from top to bottom, and an opening (14) matched with the measuring gap (5) is formed between the middle shell (12) and the lower shell (13).

5. The gasket retest device according to claim 4, wherein the upper housing (11), the middle housing (12) and the lower housing (13) are fixedly connected in a matched manner through a roller plunger (16) and a positioning pin (17) which are arranged in a penetrating manner.

6. A spacer retest device according to any of claims 1-3, characterized in that the measuring rod (32) is connected to the inner wall of the housing (1) by means of guide bearings (35);

The inside of the shell (1) is also provided with a guide pin (36) used for limiting the angle of the measuring rod (32).

7. A pad retesting device as in any of claims 1 to 3, wherein the first gauge head (33) is a planar gauge head;

the second measuring head (34) is a spherical measuring head.

8. A spacer retest device according to any of claims 1-3, characterized in that the lower end face of the housing (1) is further connected with a bottom plate (19) through a stand column (18);

A group of handles (20) which are arranged oppositely are also arranged on the bottom plate (19).

9. A spacer retest device according to any of claims 1-3, wherein the resilient return element (31) is a set of oppositely arranged springs.