CN109141852A - It is a kind of to loosen the motor shaft excentric sleeve that testing machine laterally loads for bolt - Google Patents
It is a kind of to loosen the motor shaft excentric sleeve that testing machine laterally loads for bolt Download PDFInfo
- Publication number
- CN109141852A CN109141852A CN201810940561.8A CN201810940561A CN109141852A CN 109141852 A CN109141852 A CN 109141852A CN 201810940561 A CN201810940561 A CN 201810940561A CN 109141852 A CN109141852 A CN 109141852A
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- China
- Prior art keywords
- motor shaft
- eccentric
- hole
- screw thread
- bolt
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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
- G01M13/00—Testing of machine parts
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The motor shaft excentric sleeve that testing machine laterally loads, including motor shaft axle sleeve, eccentric screwed ring and quill are loosened for bolt the invention discloses a kind of；There is stepped hole, small end hole wall and the bolt of stepped hole loosen the motor shaft that testing machine laterally loads and match, and the big end hole wall of stepped hole has motor shaft axle sleeve internal screw thread in motor shaft axle sleeve；The outer wall of eccentric screwed ring has the eccentric screwed ring external screw thread to match with motor shaft axle sleeve internal screw thread, and the thickness of eccentric screwed ring is consistent with the big end depth of stepped hole, has eccentric through-hole in eccentric screwed ring, has eccentric through-hole internal screw thread in eccentric through-hole；The outer wall of quill is equipped with thread segment, smooth section and the annular protrusion between thread segment and smooth section, and thread segment has the quill external screw thread to match with eccentric through-hole internal screw thread.The present invention can reduce replacement eccentricity cost, and provide the effect of make-up in use.
Description
Technical field
The present invention relates to bolt looseness fields, specifically a kind of that the motor that testing machine laterally loads is loosened for bolt
Eccentric shaft axle sleeve.
Background technique
Transverse load, which loosens testing machine, can be used to study the feelings that bolt is loosened in the case where bearing lateral load
Condition, it is that Junker formula loosens testing machine that current the most widely used transverse load, which loosens testing machine, such as GB/T 10431-
2008。
It is mainly by being allowed to the transverse load for adding the fastener of pretightning force to apply alternation that Junker formula, which loosens testing machine,
Generate transverse shifting.This transverse shifting makes to wave relatively between bolt and nut, microcosmic so as to cause bigger thread contact face
Sliding makes fastener occur pine rapidly and turns.It can quickly be such that fastener pine turns than previous any test method(s).Laterally move
Dynamic to be provided by the external eccentric sleeve of motor, motor rotation provides shift reciprocately load with eccentricity jointly, as shown in Figure 1,
The motor shaft eccentric sleeve that tradition uses is integrated, and there are two difficulty of processing when processing, one is eccentricity, separately
One is to need to process the keyway to match with key 1` on the axle sleeve of motor shaft cooperation, and keyway cannot run through,
The special processs modes such as electric spark must be used to process, it is relatively high so as to cause processing charges.And structure can not be made in use
Tensioning.
It is designed in the prior art about the structure of eccentric shaft part, but it is replaced eccentricity higher cost and is using
The effect of make-up cannot be provided in the process.
Summary of the invention
According to technical problem set forth above, and provide that a kind of for bolt to loosen the motor shaft that testing machine laterally loads inclined
Spindle sleeve.
The technological means that the present invention uses is as follows:
It is a kind of to loosen the motor shaft excentric sleeve that testing machine laterally loads, including motor shaft axle sleeve, eccentric spiral shell for bolt
Line ring and quill；
There is stepped hole, the small end hole wall and the bolt of the stepped hole loosen testing machine cross in the motor shaft axle sleeve
Matching to the motor shaft of load (has the key for loosening the key on the motor shaft that testing machine laterally loads with the bolt and matching
Slot), the big end hole wall of the stepped hole has motor shaft axle sleeve internal screw thread；
The outer wall of the bias screwed ring has spiral shell outside the eccentric screwed ring to match with the motor shaft axle sleeve internal screw thread
Line, and the thickness of the eccentric screwed ring is consistent with the big end depth of the stepped hole, has in the bias screwed ring inclined
Heart through-hole, the eccentric through-hole is interior to have eccentric through-hole internal screw thread；
The outer wall of the quill is equipped with thread segment, smooth section and the ring between the thread segment and the smooth section
Shape protrusion, the thread segment have the quill external screw thread to match with the eccentric through-hole internal screw thread.
The setting of the stepped hole is used to limit the position of the eccentric screwed ring.
The annular protrusion is bonded with the eccentric screwed ring, for limiting the position of the quill.
The relatively described bolt of the axis of the eccentric through-hole loosens the bias of the axis for the motor shaft that testing machine laterally loads
Away from for e, output eccentricity as of the invention.
Also there is slot in the bias screwed ring, stir the eccentric screwed ring rotation for being inserted into an iron staff.
The annular protrusion close to one end of the thread segment end face to the set corresponding with its (above-mentioned end face)
The distance of one end of cylinder axis is 1mm smaller than the depth of the eccentric through-hole.
The motor shaft axle sleeve loosens the motor shaft tightening that testing machine laterally loads by holding screw and the bolt and connects
It connects.
The motor shaft axle sleeve internal screw thread, the eccentric screwed ring external screw thread, the eccentric through-hole internal screw thread and the set
Cylinder axis external screw thread is right-handed thread.
The present invention, which is used, is loosening the reciprocal sinusoidal loading of motor offer that testing machine laterally loads, the spiral shell by the bolt
Bolt loosens the motor that testing machine laterally loads and rotates clockwise, and the motor shaft axle sleeve internal screw thread of the invention, the bias
Screwed ring external screw thread, the eccentric through-hole internal screw thread and the quill external screw thread are right-handed thread, in use institute
State bolt loosen motor rotation that testing machine laterally loads just can be by the motor shaft axle sleeve internal screw thread and eccentric screwed ring
External screw thread, eccentric through-hole internal screw thread and the externally threaded screw thread of quill screw.
Compared with prior art, the present invention can reduce replacement eccentricity cost, and provide make-up in use
Effect.
The present invention can be widely popularized in fields such as bolt loosenesses based on the above reasons.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to do simply to introduce, it should be apparent that, the accompanying drawings in the following description is this hair
Bright some embodiments for those of ordinary skill in the art without any creative labor, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of existing motor shaft excentric sleeve.
Fig. 2 is to loosen the motor shaft excentric sleeve that testing machine laterally loads for bolt in a specific embodiment of the invention
Structure explosion diagram.
Fig. 3 is to loosen the motor shaft excentric sleeve that testing machine laterally loads for bolt in a specific embodiment of the invention
Installation diagram.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
As shown in Figures 2 and 3, a kind of to loosen the motor shaft excentric sleeve that testing machine laterally loads, including electricity for bolt
Arbor axle sleeve 1, eccentric screwed ring 2 and quill 3；
There is stepped hole, 11 hole wall of small end and the bolt of the stepped hole loosen test in the motor shaft axle sleeve 1
The motor shaft 4 that machine laterally loads matches, and the big end hole wall of the stepped hole has motor shaft axle sleeve internal screw thread 12；
The outer wall of the bias screwed ring 2 has outside the eccentric screwed ring to match with the motor shaft axle sleeve internal screw thread 12
Screw thread 21, and the thickness of the eccentric screwed ring 2 is consistent with the big end depth of the stepped hole, in the bias screwed ring 2
With eccentric through-hole, there is eccentric through-hole internal screw thread 22 in the eccentric through-hole；
The outer wall of the quill 3 is equipped with thread segment 31, smooth section 32 and is located at the thread segment 31 and the smooth section
Annular protrusion 33 between 32, the thread segment 31 have spiral shell outside the quill to match with the eccentric through-hole internal screw thread 22
Line.
The relatively described bolt of the axis of the eccentric through-hole loosens the bias of the axis for the motor shaft 4 that testing machine laterally loads
Away from for e.
Also there is slot 23 in the bias screwed ring 2.
The annular protrusion 33 close to one end of the thread segment 31 end face to the quill 3 corresponding thereto
The distance of one end is 1mm smaller than the depth of the eccentric through-hole.
The motor shaft axle sleeve 1 loosens 4 tightening of motor shaft that testing machine laterally loads by holding screw and the bolt
Connection.
The motor shaft axle sleeve internal screw thread 12, the eccentric screwed ring external screw thread 21,22 and of eccentric through-hole internal screw thread
The quill external screw thread is right-handed thread.
Described in dismounting and change when bias screwed ring 2, the quill 3 is back-outed from the eccentric screwed ring 2 first,
Then it is inserted into the slot 23 with an iron staff, stirs the eccentric screwed ring 2 with iron staff, by the eccentric screwed ring 2 from institute
It states and is screwed out in motor shaft axle sleeve 1.The eccentric screwed ring 2 of eccentricity required for replacing with.
A series of parts that the eccentric screwed ring 2 can be processed to different eccentric distance es, when needing different eccentricities
The eccentric screwed ring 2 of corresponding eccentricity is only needed replacing, motor shaft axle sleeve 1 may be reused with quill 3.Not only may be used
To realize fast quick-detach, and the processing cost of eccentric sleeve is reduced, for needing the part of a series of eccentricity value, cost
It is lower.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (6)
1. a kind of loosen the motor shaft excentric sleeve that testing machine laterally loads for bolt, which is characterized in that including motor shaft axis
Set, eccentric screwed ring and quill；
There is stepped hole, the small end hole wall and the bolt of the stepped hole loosen testing machine and laterally add in the motor shaft axle sleeve
The motor shaft of load matches, and the big end hole wall of the stepped hole has motor shaft axle sleeve internal screw thread；
The outer wall of the bias screwed ring has the eccentric screwed ring external screw thread to match with the motor shaft axle sleeve internal screw thread, and
The thickness of the bias screwed ring is consistent with the big end depth of the stepped hole, has in the bias screwed ring eccentric logical
Hole, the eccentric through-hole is interior to have eccentric through-hole internal screw thread；
The outer wall of the quill is equipped with thread segment, smooth section and the convex annular between the thread segment and the smooth section
It rises, the thread segment has the quill external screw thread to match with the eccentric through-hole internal screw thread.
2. according to claim 1 loosen the motor shaft excentric sleeve that testing machine laterally loads for bolt, feature exists
In: the eccentricity that the relatively described bolt of the axis of the eccentric through-hole loosens the axis for the motor shaft that testing machine laterally loads is e.
3. according to claim 1 loosen the motor shaft excentric sleeve that testing machine laterally loads for bolt, feature exists
In: also there is slot in the bias screwed ring.
4. according to claim 1 loosen the motor shaft excentric sleeve that testing machine laterally loads for bolt, feature exists
In: the annular protrusion close to one end of the thread segment end face to one end of the quill corresponding thereto distance
It is 1mm smaller than the depth of the eccentric through-hole.
5. according to claim 1 loosen the motor shaft excentric sleeve that testing machine laterally loads for bolt, feature exists
In: the motor shaft axle sleeve loosens the motor shaft tightening connection that testing machine laterally loads by holding screw and the bolt.
6. according to claim 1 loosen the motor shaft excentric sleeve that testing machine laterally loads for bolt, feature exists
In: outside the motor shaft axle sleeve internal screw thread, the eccentric screwed ring external screw thread, the eccentric through-hole internal screw thread and the quill
Screw thread is right-handed thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810940561.8A CN109141852A (en) | 2018-08-17 | 2018-08-17 | It is a kind of to loosen the motor shaft excentric sleeve that testing machine laterally loads for bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810940561.8A CN109141852A (en) | 2018-08-17 | 2018-08-17 | It is a kind of to loosen the motor shaft excentric sleeve that testing machine laterally loads for bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109141852A true CN109141852A (en) | 2019-01-04 |
Family
ID=64790179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810940561.8A Pending CN109141852A (en) | 2018-08-17 | 2018-08-17 | It is a kind of to loosen the motor shaft excentric sleeve that testing machine laterally loads for bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109141852A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201520076U (en) * | 2009-03-31 | 2010-07-07 | 包头市丰汇包装制品有限公司 | Special eccentric bushing for gluing rollers of corrugated paper case |
| CN202065328U (en) * | 2011-05-25 | 2011-12-07 | 常州市润源经编机械有限公司 | Eccentric shaft |
| CN103659588A (en) * | 2013-12-09 | 2014-03-26 | 上海机床厂有限公司 | Eccentric shaft sleeve mechanism and method for adjusting axis position of main shaft |
| CN103836059A (en) * | 2012-11-27 | 2014-06-04 | 义乌新一代矿机科技开发有限公司 | Eccentric shaft with balanced type shaft sleeve |
| CN206129822U (en) * | 2016-11-04 | 2017-04-26 | 北京汽车动力总成有限公司 | Variable off -centre apart from pin structure |
-
2018
- 2018-08-17 CN CN201810940561.8A patent/CN109141852A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201520076U (en) * | 2009-03-31 | 2010-07-07 | 包头市丰汇包装制品有限公司 | Special eccentric bushing for gluing rollers of corrugated paper case |
| CN202065328U (en) * | 2011-05-25 | 2011-12-07 | 常州市润源经编机械有限公司 | Eccentric shaft |
| CN103836059A (en) * | 2012-11-27 | 2014-06-04 | 义乌新一代矿机科技开发有限公司 | Eccentric shaft with balanced type shaft sleeve |
| CN103659588A (en) * | 2013-12-09 | 2014-03-26 | 上海机床厂有限公司 | Eccentric shaft sleeve mechanism and method for adjusting axis position of main shaft |
| CN206129822U (en) * | 2016-11-04 | 2017-04-26 | 北京汽车动力总成有限公司 | Variable off -centre apart from pin structure |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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Application publication date: 20190104 |