阅读说明：本技术 一种测量壳体底部弹簧压缩量的检测装置及其测试方法 (Detection device for measuring compression amount of spring at bottom of shell and test method thereof ) 是由 佟政阳 李红 陈浩 于 2020-12-11 设计创作，主要内容包括：本发明涉及测量壳体底部弹簧压缩量的技术领域,具体是一种测量壳体底部弹簧压缩量的检测装置及其测试方法,包括通过螺钉固定到壳体端面上的支板、吸在支板的平面上且带有磁性表座的百分表、通过螺栓连接在支板上的上支座及下支座、分别安装在上支座的大螺母与轴承、分别穿过下支座、支板的孔,拧过大螺母的螺纹孔,穿过轴承及上支座的孔的套筒、穿过套筒的孔的长量棒、插入大螺母外圆的孔中并转动大螺母的手柄,所述的下支座上设置有用于使得套筒上下直线运动的T形键,其具体测试步骤如下：S1：连成一体；S2：安装滑动件；S3：测试；本发明通过制作不同的长量棒及支板,可以测量各种深度不同壳体中的弹簧压缩量,适用性广。(The invention relates to the technical field of measuring the compression amount of a spring at the bottom of a shell, in particular to a detection device for measuring the compression amount of the spring at the bottom of the shell and a test method thereof, wherein the detection device comprises a support plate fixed on the end surface of the shell through a screw, a dial indicator which is absorbed on the plane of the support plate and is provided with a magnetic gauge stand, an upper support and a lower support which are connected on the support plate through bolts, a large nut and a bearing which are respectively arranged on the upper support, holes which respectively penetrate through the lower support and the support plate, a threaded hole which is screwed through the large nut, a sleeve which penetrates through the holes of the bearing and the upper support, a long rod which penetrates through the hole of the sleeve, and a handle which is inserted into the hole of the excircle of the large nut and rotates the large nut, a T-shaped: s1: are connected into a whole; s2: mounting a sliding part; s3: testing; the invention can measure the spring compression amount in the shells with different depths by manufacturing different long measuring rods and supporting plates, and has wide applicability.)

1. The utility model provides a measure detection device of casing bottom spring compression volume which characterized in that: the magnetic dial indicator comprises a support plate (5) fixed on the end face of a shell, a dial indicator (10) attracted on the plane of the support plate (5) and provided with a magnetic gauge stand, an upper support (8) and a lower support (3) connected to the support plate (5), a large nut (6) and a bearing (7) which are respectively installed in a nut hole and a bearing hole of the upper support (8), a sleeve (2) which respectively penetrates through the lower support (3) and the support plate (5) and is screwed through a threaded hole of the large nut (6) and penetrates through the bearing (7) and the hole of the upper support (8), a long measuring rod (1) which penetrates through a hole of the sleeve (2), and a handle (12) which is inserted into a hole in the excircle of the large nut (6) and rotates the large nut (6), wherein a T-shaped key (4) used for enabling the sleeve (2) to move linearly up and down is arranged on the lower.

2. A measuring device for measuring the amount of compression of a spring at the bottom of a housing as defined in claim 1, wherein: the long measuring rod (1) is inserted into the hole of the bushing through the first small end (101); the end face of the bushing is attached to the end face of the bushing through a first plane (102); the long measuring rod (1) is installed in a first installation hole (202) of the sleeve (2) through a first excircle (103); the measuring plane (104) is in contact with a measuring head (1002) of the dial indicator (10) with a magnetic base.

3. A detecting device for measuring the compression amount of a spring at the bottom of a shell according to claim 2, wherein: the sleeve (2) is attached to the end face of the bushing through a second plane (201); the first mounting hole (202) is used for mounting the first excircle (103) of the long measuring rod (1); the key groove (203) is used for mounting the head (401) of the T-shaped key (4) and plays a role in guiding to ensure that the sleeve (2) moves up and down linearly; is screwed in and passes through the internal thread (601) of the large nut (6) through the first thread (204).

4. A measuring device for measuring the amount of compression of a spring at the bottom of a housing according to claim 3, wherein: the lower support (3) is attached to the lower plane (503) of the support plate (5) through the plane III (304); the sleeve (2) is installed through the second installation hole (301); a second excircle (402) of the T-shaped key (4) is installed through the outer circular hole (302); the first threaded hole (303) is used for mounting the bolt (9).

5. The detecting device for measuring the compression amount of the spring at the bottom of the shell according to claim 4, wherein: the head (401) of the T-shaped key (4) is arranged in the key groove (203) of the sleeve (2); the outer circle II (402) is arranged in an outer round hole (302) of the lower support (3).

6. The detecting device for measuring the compression amount of the spring at the bottom of the shell according to claim 5, wherein: the mounting hole (501) of the support plate (5) is used for mounting the sleeve (2); the upper plane (502) is attached to the plane eight (804) of the upper support (8); a lower plane (503) is attached to a plane III (304) of the lower support (3), a plane V (505) is placed on the end face of the shell, and the support plate (5) is fixed on the end face of the shell through a stepped hole (506) by a screw (11).

7. The detecting device for measuring the compression amount of the spring at the bottom of the shell according to claim 6, wherein: the large nut (6) is connected with the first thread (204) of the sleeve (2) through the internal thread (601); the plane six (602) is attached to the plane seven (702) of the bearing (7) and is installed in the nut hole (803) of the upper support (8).

8. A test device for measuring the compression of a spring at the bottom of a housing as claimed in claim 7, wherein: the bearing (7) is provided with the sleeve (2) through a third mounting hole (701); the plane seven (702) is attached to the plane six (602) of the large nut (6) and is installed in a bearing hole (802) of the upper support (8) through the excircle three (703); the upper support (8) is provided with the sleeve (2) through a fourth mounting hole (801); the bearing hole (802) is used for installing a bearing (7); the nut hole (803) is used for mounting a large nut (6); the plane eight (804) is attached to the upper plane (502) of the support plate (5); and the mounting hole five (805) is used for mounting the bolt (9).

9. A test device for measuring the compression of a spring at the bottom of a housing as claimed in claim 8, wherein: the dial indicator (10) with the magnetic gauge stand is attracted to the upper plane (502) of the support plate (5) through the plane nine (1001); the measuring head (1002) is contacted with the measuring plane (104) of the long measuring rod (1) for zero alignment and measurement of the dial indicator (10) with the magnetic gauge stand.

10. The test method of a test device for measuring the compression amount of a spring at the bottom of a case according to any one of claims 1 to 9, wherein: the method comprises the following specific steps:

s1: the connection is as a whole: the bearing (7) is installed in a bearing hole (802) of an upper support (8), then a large nut (6) is installed in a nut hole (803) of the upper support (8), a plane eight (804) of the upper support (8) is attached to an upper plane (502) of a support plate (5), a plane three (304) of a lower support (3) is attached to a lower plane (503) of the support plate (5), and the upper support (8), the support plate (5) and the lower support (3) are connected into a whole through bolts (9);

s2: installing a sliding part: the T-shaped key (4) is installed in an outer round hole (302) of the lower support (3), the sleeve (2) is installed in the lower support (3) from bottom to top, the head (401) of the T-shaped key (4) slides in a key groove (203) of the sleeve (2), the sleeve (2) penetrates through the support plate (5), and a first thread (204) of the sleeve penetrates through an inner thread (601) of the large nut (6) and penetrates through the bearing (7) and the upper support (8);

s3: and (3) testing: the long measuring rod (1) penetrates through the sleeve (2), the small end I (101) is inserted into a hole of the bushing, the support plate (5) is fixed to the end face of the shell through the screw (11), the dial indicator (10) with the magnetic gauge seat is attracted to the support plate (5), the measuring head (1002) of the dial indicator is placed on the measuring plane (104) of the long measuring rod (1) and has a pressing amount and is zero, the handle (12) is inserted into the large nut (6), the large nut (6) is rotated to enable the sleeve (2) to move downwards to press down the bushing, the spring at the bottom of the bushing is compressed through the bushing, the long measuring rod (1) inserted into the bushing moves downwards along with the bushing, the numerical value of the dial indicator (10) with the magnetic gauge seat changes, and the change amount is the compression amount of the elastic amount.

Technical Field

The invention relates to the technical field of measuring the compression amount of a spring at the bottom of a shell, in particular to a detection device for measuring the compression amount of the spring at the bottom of the shell and a test method thereof.

Background

In the assembling process of the aircraft oil pump, a bush with a spring and arranged at the bottom of a shell needs to measure the compression amount of the spring, and gaskets with different thicknesses are selected according to different compression amounts of the spring so as to ensure the requirement of the gap between the end surface of the bush and the plane of the bottom of the shell when the spring is compressed to the bottom. Because the measurement needs to be carried out in the shell, the space is narrow, the depth is deep, the shape is irregular, the spring needs to be compressed, and general detection equipment cannot meet the requirements, a detection device and a method for measuring the compression amount of the spring at the bottom of the shell need to be developed.

Disclosure of Invention

In order to solve the above problems, the present invention provides a detection device for measuring the compression amount of a spring at the bottom of a housing and a test method thereof.

A detection device for measuring the compression amount of a spring at the bottom of a shell comprises a support plate fixed on the end face of the shell through a screw, a dial indicator attracted on the plane of the support plate and provided with a magnetic gauge stand, an upper support and a lower support connected on the support plate through bolts, a large nut and a bearing which are respectively installed in a nut hole and a bearing hole of the upper support, holes respectively penetrating through the lower support and the support plate, a threaded hole for screwing the large nut, a sleeve penetrating through the bearing and the hole of the upper support, a long measuring rod penetrating through the hole of the sleeve, and a handle inserted into the hole of the excircle of the large nut and rotating the large nut, wherein the lower support is provided with a T-shaped key for enabling the sleeve to move linearly up and down.

The long rod is inserted into the hole of the bushing through the first small end; the end face of the bush is attached through the first plane; the long measuring rod is arranged in the mounting hole of the sleeve through the first excircle; the measuring plane is in contact with a measuring head of a dial indicator with a magnetic gauge stand.

The sleeve is attached to the end face of the bushing through the second plane; the mounting hole I is used for mounting an excircle I of the long measuring rod; the key groove is used for mounting the head part of the T-shaped key, plays a role in guiding and ensures that the sleeve moves linearly up and down; the first thread is screwed into and penetrates through the internal thread of the large nut.

The lower support is attached to the lower plane of the support plate through a plane III; installing the sleeve through the installation hole; an outer circle II of the T-shaped key is arranged through the outer circular hole; and the threaded hole I is used for mounting a bolt.

The head of the T-shaped key is arranged in the key groove of the sleeve; the second excircle is arranged in an outer round hole of the lower support.

The mounting hole of the support plate is used for mounting the sleeve; the upper plane is attached to the plane IV of the upper support; the lower plane is attached to the third plane of the lower support, the fifth plane is placed on the end face of the shell, and the support plate is fixed on the end face of the shell through the stepped hole and the screw.

The large nut is connected with the first thread of the sleeve through the internal thread; and the plane six is attached to the plane seven of the bearing and is installed in the nut hole of the upper support.

The bearing is provided with a sleeve through a third mounting hole; the plane seven is attached to the plane six of the large nut and is installed in a bearing hole of the upper support through the excircle three; the upper support is provided with a sleeve through a mounting hole IV; the bearing hole is used for mounting a bearing; the nut hole is used for mounting a large nut; the plane eight is attached to the upper plane of the support plate; and the mounting hole V is used for mounting a bolt.

The dial indicator with the magnetic gauge stand is attracted to the upper plane of the support plate through the plane nine; the measuring head is contacted with the measuring plane of the long measuring rod and is used for zero alignment and measurement of the dial indicator with the magnetic gauge stand.

A test method of a detection device for measuring the compression amount of a spring at the bottom of a shell comprises the following specific steps:

s1: the connection is as a whole: mounting a bearing into a bearing hole of an upper support, mounting a large nut into a nut hole of the upper support, attaching a plane eight of the upper support to an upper plane of a support plate, attaching a plane three of a lower support to a lower plane of the support plate, and connecting the upper support, the support plate and the lower support into a whole by using bolts;

s2: installing a sliding part: installing a T-shaped key into an excircle hole of a lower support, installing a sleeve into the lower support from bottom to top, enabling the head of the T-shaped key to slide in a key groove of the sleeve, enabling the sleeve to penetrate through a support plate, screwing a first thread of the sleeve into an inner thread of a large nut, and penetrating through a bearing and an upper support;

s3: and (3) testing: the long rod penetrates through the sleeve to insert the small end I into the hole of the bushing, the support plate is fixed on the end face of the shell through a screw, the dial indicator with the magnetic gauge seat is attracted on the support plate, the measuring head of the dial indicator is placed on the measuring plane of the long rod, the dial indicator with the magnetic gauge seat is zero, the handle is inserted into the large nut, the large nut is rotated to enable the sleeve to move downwards to press the bushing, the spring at the bottom of the bushing is compressed through the bushing, the long rod inserted into the bushing moves downwards along with the bushing, the numerical value of the dial indicator with the magnetic gauge seat is changed, and the variable quantity of the dial indicator is the compression quantity of the elastic quantity.

The invention has the beneficial effects that: according to the dial indicator, the sleeve moves downwards, the sleeve drives the bushing to compress the spring at the bottom of the bushing, the long measuring rod inserted into the bushing moves downwards, the numerical value of the dial indicator with the magnetic gauge stand is changed, the numerical value is the compression amount of the spring, the structure is simple, the manufacturing is easy, and the detection method is convenient and reliable; by manufacturing different long measuring rods and supporting plates, the spring compression amount in different shells with different depths can be measured, and the applicability is wide.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a left side view of the present invention with the housing removed;

FIG. 3 is a schematic view of a long rod structure of the present invention;

FIG. 4 is a schematic view of the sleeve structure of the present invention;

FIG. 5 is a schematic cross-sectional view of the sleeve of the present invention;

FIG. 6 is a schematic view of the front view of the T-shaped key of the present invention;

FIG. 7 is a schematic side view of the T-shaped key of the present invention;

FIG. 8 is a schematic front view of the support plate of the present invention;

FIG. 9 is a cross-sectional structural view of the plate of the present invention;

FIG. 10 is a front view of the nut of the present invention;

FIG. 11 is a side view of the large nut of the present invention;

FIG. 12 is a schematic view of a bearing construction of the present invention;

FIG. 13 is a front view of the upper support of the present invention;

FIG. 14 is a schematic cross-sectional view of the upper bracket of the present invention;

FIG. 15 is a schematic view of the bolt construction of the present invention;

FIG. 16 is a schematic diagram of a dial gauge with a magnetic base according to the present invention;

FIG. 17 is a schematic view of a screw construction of the present invention;

FIG. 18 is a schematic view of the handle structure of the present invention;

description of the drawings: 1. a long measuring bar; 101. a first small end; 102. a first plane; 103. a first outer circle; 104. measuring a plane; 2. a sleeve; 201. a second plane; 202. a first mounting hole; 203. a keyway; 204. a first thread; 3. a lower support; 301. a second mounting hole; 302. an outer circular hole; 303. a first threaded hole; 304. a third plane; 4. a T-shaped key; 401. a head portion; 402. a second outer circle; 5. a support plate; 501. mounting holes; 502. an upper plane; 503. a lower plane; 505. a fifth plane; 506. a stepped bore; 6. a large nut; 601. an internal thread; 602. a sixth plane; 603. a handle aperture; 7. a bearing; 701. a third mounting hole; 702. a seventh plane; 703. an outer circle III; 8. an upper support; 801. a fourth mounting hole; 802. a bearing bore; 803. a nut hole; 804. eight planes; 805. a fifth mounting hole; 9. a bolt; 901. a second thread; 10. a dial indicator with a magnetic gauge stand; 1001. nine planes; 1002. a measuring head; 11. a screw; 1101. a third thread; 12. a handle; 1201. and the small end is two.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further explained below.

As shown in fig. 1 to 18, a detection device for measuring the compression amount of a spring at the bottom of a shell comprises a support plate 5 fixed on the end face of the shell through a screw 11, a dial indicator 10 attracted on the plane of the support plate 5 and provided with a magnetic gauge stand, an upper support 8 and a lower support 3 connected on the support plate 5 through a bolt 9, a large nut 6 and a bearing 7 respectively installed in a nut hole and a bearing hole of the upper support 8, holes respectively penetrating through the lower support 3 and the support plate 5, a threaded hole screwed through the large nut 6, a sleeve 2 penetrating through the holes of the bearing 7 and the upper support 8, a long rod 1 penetrating through the hole of the sleeve 2, and a handle 12 inserted into the hole of the excircle of the large nut 6 and rotating the large nut 6, wherein the lower support 3 is provided with a T-shaped key 4 for enabling the sleeve 2 to move linearly up and down.

According to the invention, the sleeve 2 moves downwards, the sleeve 2 drives the bushing to compress the spring at the bottom of the bushing, the long measuring rod 1 inserted into the bushing also moves downwards, the numerical value of the dial indicator 10 with the magnetic gauge stand is changed, the numerical value is the compression amount of the spring, the structure is simple, the manufacture is easy, and the detection method is convenient and reliable; by manufacturing different long measuring rods 1 and supporting plates 5, the spring compression amount in shells with different depths can be measured, and the applicability is wide.

The long rod 1 is inserted into the hole of the bushing through the first small end 101; the end face of the bushing is attached through the first plane 102; the long measuring rod 1 is arranged in a first mounting hole 202 of the sleeve 2 through a first outer circle 103; the measuring plane 104 is in contact with the measuring head 1002 of the dial indicator 10 with the magnetic bezel.

The sleeve 2 is attached to the end face of the bushing through the second plane 201; the first mounting hole 202 is used for mounting the first excircle 103 of the long measuring rod 1; the key groove 203 is used for mounting the head 401 of the T-shaped key 4, plays a role in guiding and ensures that the sleeve 2 moves up and down linearly; is screwed in and passes through the internal thread 601 of the large nut 6 through the first thread 204.

As shown in fig. 1 and 2, reference numeral a is a housing, reference numeral b is a spring, and reference numeral c is a bush.

The lower support 3 is attached to the lower plane 503 of the support plate 5 through the third plane 304; the sleeve 2 is installed through the second installation hole 301; an outer circle II 402 of the T-shaped key 4 is arranged through the outer circular hole 302; the first threaded hole 303 is used for mounting the bolt 9.

The head 401 of the T-shaped key 4 is arranged in the key groove 203 of the sleeve 2; the outer circle two 402 is installed in the outer circle hole 302 of the lower support 3.

The mounting hole 501 of the support plate 5 is used for mounting the sleeve 2; the upper plane 502 is attached to the plane eight 804 of the upper support 8; the lower plane 503 is attached to the plane three 304 of the lower support 3, the plane five 505 is placed on the end face of the housing, and the support plate 5 is fixed on the end face of the housing by the screw 11 through the stepped hole 506.

The large nut 6 is connected with the first thread 204 of the sleeve 2 through the internal thread 601; plane six 602 abuts plane seven 702 of bearing 7 and fits into nut hole 803 of upper bracket 8.

The bearing 7 is provided with the sleeve 2 through a third mounting hole 701; plane seven 702 fits against plane six 602 of large nut 6 and fits into bearing hole 802 of upper bracket 8 through outer circle three 703.

The upper support 8 is provided with the sleeve 2 through a fourth mounting hole 801; the bearing hole 802 is used for mounting the bearing 7; the nut hole 803 is used for mounting the large nut 6; the plane eight 804 is attached to the upper plane 502 of the support plate 5; the mounting hole five 805 is used for mounting the bolt 9.

The bolt 9 connects the upper support 8, the support plate 5 and the lower support 3 together through a second thread 901.

The dial indicator 10 with the magnetic gauge stand is attracted to the upper plane 502 of the support plate 5 through the plane nine 1001; the measuring head 1002 is contacted with the measuring plane 104 of the long measuring rod 1 for zero alignment and measurement of the dial indicator 10 with the magnetic gauge stand.

The screw 11 secures the bracket 5 to the end face of the housing by means of a threaded tri 1101.

The handle 12 is inserted into the handle hole 603 of the large nut 6 through the second small end 1201 to drive the large nut 6 to rotate.

A test method of a detection device for measuring the compression amount of a spring at the bottom of a shell comprises the following specific steps:

s1: the connection is as a whole: mounting a bearing 7 into a bearing hole 802 of an upper support 8, mounting a large nut 6 into a nut hole 803 of the upper support 8, attaching a plane eight 804 of the upper support 8 to an upper plane 502 of a support plate 5, attaching a plane three 304 of a lower support 3 to a lower plane 503 of the support plate 5, and connecting the upper support 8, the support plate 5 and the lower support 3 into a whole by using a bolt 9;

s2: installing a sliding part: installing a T-shaped key 4 into an outer round hole 302 of a lower support 3, installing a sleeve 2 into the lower support 3 from bottom to top, sliding a head 401 of the T-shaped key 4 in a key groove 203 of the sleeve 2, enabling the sleeve 2 to penetrate through a support plate 5, enabling a first thread 204 of the sleeve to be screwed into and penetrate through an inner thread 601 of a large nut 6, and enabling the sleeve 2 to penetrate through a bearing 7 and an upper support 8;

s3: and (3) testing: the long measuring rod 1 penetrates through the sleeve 2, the small end I101 is inserted into a hole of the bushing, the support plate 5 is fixed on the end face of the shell through the screw 11, the dial indicator 10 with the magnetic gauge stand is attracted on the support plate 5, the measuring head 1002 of the long measuring rod 1 is placed on the measuring plane 104 of the long measuring rod 1, the dial indicator is pressed and zeroed, the handle 12 is inserted into the large nut 6, the large nut 6 is rotated to enable the sleeve 2 to move downwards to press the bushing, the spring at the bottom of the bushing is compressed through the bushing, meanwhile, the long measuring rod 1 inserted into the bushing moves downwards along with the bushing, the numerical value of the dial indicator 10 with the magnetic gauge stand is changed, and the variable quantity is the compression quantity of the elastic quantity.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.