CN112129477B - Screw member vibration test tool - Google Patents
Screw member vibration test tool Download PDFInfo
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- CN112129477B CN112129477B CN202010889195.5A CN202010889195A CN112129477B CN 112129477 B CN112129477 B CN 112129477B CN 202010889195 A CN202010889195 A CN 202010889195A CN 112129477 B CN112129477 B CN 112129477B
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- shaft body
- bushing
- long hole
- threaded
- screw
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/02—Vibration-testing by means of a shake table
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- General Physics & Mathematics (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention relates to a threaded part vibration test tool which comprises a base fixedly arranged on a vibrating machine during use, wherein a through long hole is formed in the base; the test tool further comprises a shaft body penetrating through the long hole, and two ends of the shaft body are located outside the long hole; the shaft body is sleeved with a bushing, the bushing penetrates through the long hole, and the length of the bushing is greater than the penetration length of the long hole; the two ends of the shaft body are respectively provided with a blocking part, and the maximum outer diameter of each blocking part is larger than the width of the long hole and is used for being in limit fit with the base, so that the shaft body is prevented from being separated from the long hole; the bushing is pressed between the two stopping components; at least one of the two stop members comprises a threaded mounting; and at least one end of the shaft body or the stop component is provided with a threaded hole for mounting a threaded part to be tested.
Description
Technical Field
The invention relates to a threaded part vibration test tool.
Background
The pre-coating glue screw has the advantages of convenience in mounting, good anti-loosening performance, repeated dismounting and long service life, but the pre-coating glue screw with small specification is small in size and cannot be directly mounted on the vibrating machine, so that an experiment tool needs to be additionally equipped, and other small-sized screws or nuts with external threads and other threaded parts also have the problems.
Therefore, the chinese patent application with application publication No. CN104849002A discloses a vibration testing device for a screw, which includes a bracket, a long hole formed in the bracket, a core shaft inserted in the long hole, a nut and a shaft body, and a threaded hole formed in an end of the shaft body opposite to the nut. During the use, the dabber penetrates in the slot hole, and the screw that awaits measuring is installed to the screw hole of axis body, and the pressure equipment has the gasket between screw and the axis body that awaits measuring. Wherein, the width of slot hole is less than the external diameter of nut and gasket and is greater than the external diameter of axis body, and the length of axis body is greater than the through length of slot hole for dabber, the screw that awaits measuring and gasket can move about in the slot hole and can not break away from the slot hole. The existing testing device further comprises a bushing (namely a sleeve in the patent application), the bushing is sleeved on the periphery of the shaft body, and two ends of the bushing are abutted to the nut and the gasket.
In the prior art, a threaded hole is formed in one end of a mandrel to install a small-sized screw to be tested, so that the test on the vibration performance of the screw to be tested is completed. However, there are some problems: in the prior art, the mandrel can be assembled with the long hole only after being assembled with the screw to be tested, and before the screw to be tested is not installed, the mandrel can be separated from the long hole, so that parts are lost. Moreover, if the number of the screws to be measured is large, the core shaft needs to be repeatedly inserted into the long hole for many times, and the operation is inconvenient.
Disclosure of Invention
The invention aims to provide a screw part vibration test tool to solve the technical problem that the test tool in the prior art is inconvenient to operate.
In order to achieve the purpose, the technical scheme of the vibration test tool for the threaded part is as follows: the utility model provides a screw member vibration test frock, includes:
the base is fixedly arranged on the vibrating machine when in use, and a through long hole is formed in the base;
the shaft body penetrates through the long hole, and two ends of the shaft body are positioned outside the long hole;
the bushing is sleeved on the shaft body and penetrates through the long hole, and the length of the bushing is greater than that of the long hole;
the two ends of the shaft body are respectively provided with a blocking part, and the maximum outer diameter of each blocking part is larger than the width of the long hole and is used for being in limit fit with the base, so that the shaft body is prevented from being separated from the long hole;
the bushing is pressed between the two stopping components;
at least one of the two stop members comprises a threaded mounting;
and at least one end of the shaft body or the stop component is provided with a threaded hole for mounting a threaded part to be tested.
The invention has the beneficial effects that: the shaft body is arranged on the base in a falling-proof mode through the stopping components at the two ends and can move along with the vibrating machine, the thread mounting piece can ensure that the two stopping components clamp and fix the bushing, and the bushing, the two stopping components and the shaft body can form a whole body which is connected completely. The end part of the shaft body or the stop part is provided with a threaded hole for mounting a threaded part to be tested. According to the invention, the vibration effect is transferred to the shaft body through the bushing, and the shaft body is protected at the same time, so that the shaft body is prevented from being broken after being severely vibrated. Whether the threaded part to be tested is installed or not, the anti-drop installation with the base is realized by the shaft body, the bushing and the two stop components in the test tool, the threaded part to be tested is convenient to install, and the shaft body, the stop components and other parts do not need to be reassembled. The bush is compressed tightly between two stop components, and the stop components are all arranged on the shaft body, so that the whole body is fixedly assembled, and looseness is prevented during vibration.
As a further optimized scheme, the thread mounting piece is a lock nut which is assembled outside the shaft body in a threaded manner, and the lock nut is matched with the stop component on the other side to tightly press the bushing;
the threaded hole is formed in the end portion of one end, where the locking nut is located, of the shaft body.
The effect of this scheme lies in, and the screw thread installed part is lock nut, can set up the tip at the axis body with the screw hole, and axis body length is great, does not have the restriction to the degree of depth of seting up of screw hole.
As a further optimized scheme, a washer is pressed between the locking nut and the bushing, and the outer diameter of the washer is larger than the width of the long hole.
The effect of this scheme lies in, sets up the packing ring after, can adopt less lock nut to come the roof pressure packing ring.
As a further optimized scheme, the stop component at the other end comprises an annular rib integrally formed on the bushing, and the outer diameter of the annular rib is larger than that of the bushing;
the stopping component also comprises a jacking component which is arranged on the shaft body and jacks the annular flange.
The effect of this scheme lies in, bush and annular flange integrated into one piece, and it is all comparatively convenient during processing and installation.
As a further optimized scheme, the jacking part is a bolt head, and the bolt head and the shaft body are integrally formed to form the bolt.
The effect of this scheme lies in, bolt head and axis body integrated into one piece, and the installation is comparatively convenient.
As a further optimized scheme, the threaded part is a screw installed at the end part of the shaft body in a threaded mode, a gasket is installed between the screw and the bushing in a pressing mode, and the screw is provided with the threaded hole.
Drawings
FIG. 1 is a diagram showing a state of use of a tool for vibration testing of a threaded part according to an embodiment 1 of the present invention;
FIG. 2 is a left side view of FIG. 1;
FIG. 3 is a schematic view of the bushing and annular rib of FIGS. 1 and 2 in combination;
description of reference numerals: 1-a base; 2-long hole; 3-a bolt; 31-a stem portion; 32-bolt head; 41-a bushing; 42-annular rib; 5-a gasket; 6-locking the nut; 7-a threaded hole; 8-screw to be tested.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a," "8230," "8230," or "comprising" does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.
The features and properties of the present invention are described in further detail below with reference to examples.
The invention relates to a screw part vibration test tool, which comprises the following specific embodiments in part by weight:
as shown in fig. 1 to 3, the test tool is fixedly mounted on a vibrating machine during use, the vibrating machine applies a vibrating action to the test tool, and the vibrating tool transmits the vibrating action to a threaded part to be tested. Experimental frock includes base 1, has slot hole 2 on the base 1, and the axis body is worn to be equipped with by slot hole 2, and the outside cover of axis body is equipped with bush 41, and bush 41 is on transmitting the axis body with the sinusoidal motion of bobbing machine to protect the axis body, prevent the axis body fracture. The two ends of the shaft body are provided with the stop components, so that the shaft body can only move in the long hole 2 along the radial direction and cannot be separated out along the axial direction. The two stopper members press the bush 41, so that the stopper members, the shaft body, and the bush 41 form a whole and move synchronously. And a threaded hole is formed in the stop component or the shaft body to install the threaded piece to be tested, vibration is transmitted to the threaded piece to be tested, and the vibration performance of the threaded piece to be tested is qualitatively tested.
The screw member to be tested in this embodiment is a screw 8 to be tested, and the screw 8 to be tested is a pre-glued screw.
As shown in fig. 1, the shaft body in this embodiment is a rod portion 31 in the bolt 3, both ends of the rod portion 31 are located outside the long hole 2, and the bolt 3 further includes a bolt head 32. The bush 41 is fitted around the outside of the rod portion 31, and the length of the bush 41 is longer than the penetration length of the long hole 2.
The two ends of the shaft body are respectively provided with a stop member, and when in use, the stop member is used for being matched with the base 1 in a stop manner to prevent the shaft body from falling off, as shown in fig. 1 and 3, the stop member at one end comprises a bolt head 32 and an annular rib 42, as shown in fig. 3, the annular rib 42 and the bushing 41 are of an integrated structure, and the outer diameter of the annular rib 42 is larger than the width of the long hole 2, so that the annular rib 42 can be matched with the base 1. The stop component at the other end comprises a lock nut 6 and a washer 5, the lock nut 6 is installed on the rod part 31 in a threaded mode, and the washer 5 is sleeved outside the rod part 31 and is pressed on the end part of the bushing 41 through the lock nut 6. The outer diameter of the washer 5 is larger than the width of the long hole 2, and the washer can be matched with the base 1 in a blocking mode. Through the cooperation of the bolt head 32, the annular rib 42, the lock nut 6 and the washer 5, the shaft body can be prevented from being removed from the long hole 2 along the axial direction of the long hole 2, and the assembled component can move in the radial direction after being vibrated because the length of the bush 41 is greater than the depth of the long hole 2.
As shown in fig. 1, a threaded hole 7 is formed in one end (i.e., the right end in fig. 1) of the rod 31, where the lock nut 6 is installed, and during a test, the screw 8 to be tested is screwed into the threaded hole 7 and tightened.
When the base is used, the base 1 is installed on a vibrating machine, the bolt 3, the lining 41, the annular rib 42, the locking nut 6 and the washer 5 are assembled to form an assembly, and when a test is carried out, the screw 8 to be tested is installed in the threaded hole 7, so that a subsequent test can be carried out. After the screw 8 to be tested is dismounted, the test tool still keeps the original state, and when the screw 8 to be tested is mounted again, the test tool does not need to be assembled, so that the use is more convenient.
In this embodiment, the bolt head 32 is used to apply a pressing force to the annular rib 42 when in use, and the bush 41 is pressed by the locking nut 6 and the washer 5 on the other side, so that the bolt head 32 forms a pressing member pressing against the annular rib 42.
Wherein, lock nut 6 is the screw thread installed part of screw thread assembly on the axis body.
It should be noted that, the present embodiment is described by taking the installation of the screw to be tested as an example, and in other embodiments, the screw to be tested may be a common small-sized screw, or a nut with an external thread, or another screw with an external thread.
The invention relates to a specific embodiment 2 of a screw part vibration test tool:
in example 1, the bolt head forms a pressing member, and a pressing force is applied to the annular rib. In this embodiment, the pressing member may be a screw thread assembled to the screw thread mounting member, and the screw thread mounting member may be a screw or a nut. At this time, both stopper members include a threaded mounting therein. The shaft body can be a screw with threads at two ends.
The specific embodiment 3 of the vibration test tool for the threaded part, disclosed by the invention, is as follows:
in the embodiment 1, the annular rib and the lining are integrally formed, and the jacking piece presses the annular rib and presses the lining through the locking nut at the other end. In this embodiment, the annular rib and the bushing are separately fixed, and the annular rib at this time may be regarded as a gasket. Alternatively, in other embodiments, the annular rib may be eliminated when the outer diameter of the biasing member is greater than the width of the slot.
The specific embodiment of the vibration test tool for the threaded part, disclosed by the invention, is as follows:
in embodiment 1, the washer is press-fitted between the lock nut and the bush, and in this embodiment, the washer may be eliminated when the outer diameter of the lock nut is larger than the width of the long hole.
The specific embodiment 5 of the screw member vibration test tool of the invention:
in example 1, a screw member to be measured is attached to only one end of the shaft body by providing a screw hole. In this embodiment, a threaded hole is also formed in the bolt head. Or only the bolt head is provided with a threaded hole. Of course, as shown in embodiment 2, when the threaded mounting members in the stopper members at both ends of the shaft body are both nuts, threaded holes may be formed in both ends of the shaft body.
The specific embodiment 6 of the vibration test tool for the threaded part of the invention:
in embodiment 1, the threaded mounting member is a lock nut. In this embodiment, the screw mounting member is a screw, and specifically, the screw is mounted on an end portion of the shaft body. When the threaded mounting part is a screw, one end of the bushing needs to be flush with the end face of the shaft body or protrude out of the shaft body so that the screw can exert a pressure on the bushing. And in order to ensure that the screw can be in stop fit with the base, a washer can be pressed between the screw and the bushing. The threaded hole is formed in the screw, and the thread is a part of the stopper member.
The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention, the scope of the present invention is defined by the appended claims, and all structural changes that can be made by using the contents of the description and the drawings of the present invention are intended to be embraced therein.
Claims (6)
1. The utility model provides a screw member vibration test frock, includes:
the base is fixedly arranged on the vibrating machine when in use, and a through long hole is formed in the base;
the shaft body penetrates through the long hole, and two ends of the shaft body are positioned outside the long hole;
the bushing is sleeved on the shaft body and penetrates through the long hole, and the length of the bushing is greater than that of the long hole;
the method is characterized in that:
the two ends of the shaft body are respectively provided with a blocking part, and the maximum outer diameter of each blocking part is larger than the width of the long hole and is used for being in limit fit with the base, so that the shaft body is prevented from being separated from the long hole;
the bushing is pressed between the two stopping components;
at least one of the two stopping components comprises a thread mounting component which enables the two stopping components to clamp and fix the bushing, so that the bushing, the two stopping components and the shaft body form a whole body which is completely connected;
and at least one end of the shaft body or the stop component is provided with a threaded hole for mounting a threaded part to be tested.
2. The threaded part vibration test tool according to claim 1, characterized in that: the thread mounting piece is a lock nut assembled outside the shaft body in a threaded manner, and the lock nut is matched with the stop component on the other side to tightly press the bushing;
the threaded hole is formed in the end portion of one end, where the locking nut is located, of the shaft body.
3. The threaded part vibration test tool according to claim 2, characterized in that: and a washer is pressed between the locking nut and the bushing, and the outer diameter of the washer is greater than the width of the long hole.
4. The screw member vibration test tool according to claim 2 or 3, characterized in that: the stop component on the other side comprises an annular flange integrally formed on the bushing, and the outer diameter of the annular flange is larger than that of the bushing;
the blocking component also comprises a jacking component which is arranged on the shaft body and jacks the annular flange.
5. The threaded part vibration test tool according to claim 4, characterized in that: the jacking piece is a bolt head, and the bolt head and the shaft body are integrally formed to form the bolt.
6. The threaded part vibration test tool according to claim 1, characterized in that: the screw thread mounting part is a screw which is mounted at the end part of the shaft body in a threaded manner, a gasket is press-mounted between the screw and the bushing, and the screw is provided with the threaded hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010889195.5A CN112129477B (en) | 2020-08-28 | 2020-08-28 | Screw member vibration test tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010889195.5A CN112129477B (en) | 2020-08-28 | 2020-08-28 | Screw member vibration test tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112129477A CN112129477A (en) | 2020-12-25 |
| CN112129477B true CN112129477B (en) | 2022-10-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010889195.5A Active CN112129477B (en) | 2020-08-28 | 2020-08-28 | Screw member vibration test tool |
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Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000009582A (en) * | 1998-06-26 | 2000-01-14 | Akashi Corp | Coupling structure of vibration tester |
| CN104142203B (en) * | 2013-07-12 | 2016-06-01 | 河南航天精工制造有限公司 | Tight locking nut loose moment testing method and this test frock of unloading axial force |
| CN104849002A (en) * | 2014-02-18 | 2015-08-19 | 珠海格力电器股份有限公司 | Screw vibration testing device |
| CN103954419B (en) * | 2014-04-29 | 2016-06-29 | 西安交通大学 | A kind of threaded fastener transverse vibration testing device and test method |
| CN104405751B (en) * | 2014-11-26 | 2017-01-18 | 河南航天精工制造有限公司 | External-threaded self-locking nut vibration test tool |
| CN104390753B (en) * | 2014-11-26 | 2017-06-16 | 河南航天精工制造有限公司 | Self-locking nut vibration testing device is used in bearing fastening |
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2020
- 2020-08-28 CN CN202010889195.5A patent/CN112129477B/en active Active
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| CN112129477A (en) | 2020-12-25 |
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