CN109554962A - Screw retention device and track switch - Google Patents
Screw retention device and track switch Download PDFInfo
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- CN109554962A CN109554962A CN201811609001.0A CN201811609001A CN109554962A CN 109554962 A CN109554962 A CN 109554962A CN 201811609001 A CN201811609001 A CN 201811609001A CN 109554962 A CN109554962 A CN 109554962A
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- washer
- limiting section
- nut
- retention device
- screw retention
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- 230000014759 maintenance of location Effects 0.000 title claims abstract description 80
- 230000000694 effects Effects 0.000 abstract description 33
- 230000002146 bilateral effect Effects 0.000 abstract description 5
- 238000005457 optimization Methods 0.000 description 13
- 238000012545 processing Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 230000035800 maturation Effects 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
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- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B7/00—Switches; Crossings
- E01B7/22—Special sleepers for switches or crossings; Fastening means therefor
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B11/00—Rail joints
- E01B11/02—Dismountable rail joints
- E01B11/36—Fastening means for fishplates
- E01B11/38—Locking arrangements for fastening means
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B7/00—Switches; Crossings
- E01B7/10—Frogs
- E01B7/12—Fixed frogs made of one part or composite
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Connection Of Plates (AREA)
Abstract
The present invention provides a kind of screw retention device and track switch, screw retention device includes: space washer, is set on component to be tightened, and at least two first limiting sections are provided on space washer；Lock washer is set on space washer, and the second limiting section is provided on lock washer, and the second limiting section matches connection with the first limiting section；Wherein, space washer is fixed on component to be tightened by screw bolt and nut, then lock washer is set on nut, the first limiting section and the second limiting section are connected.Lock washer is located on space washer by the first limiting section and the second limiting section, and nut is located on lock washer, to guarantee that nut can be during the work time always in tightening state.The bilateral or even polygon positioning of lock washer can be realized by setting the first limiting section of at least two groups and the second limiting section, to promote the structural stability of anti-loose structure, and then realized and optimized product structure, promote the technical effect of product reliability and stability.
Description
Technical field
The present invention relates to railway switch technical fields, in particular to a kind of screw retention device and track switch.
Background technique
Specifically, the fastening bolt working environment on railway switch is complicated and severe, bolt in the prolonged course of work
It is easy to appear loose phenomenon, to bring many security risks, influences the safety traffic of train.
For this problem, track switch high-strength bolt is locking generallys use two kinds of anti-rotation chip architectures at present.One is for adjacent
Two or three bolts, be provided with the anti-rotation sheet that multiple bolts share in the anti-rotation sheet component, multiple adjacent bolts with
The anti-rotation sheet is connected, but the structure is only applicable to the occasion that multiple bolts are closely arranged, and for single hole bolt and is not suitable for.Separately
One is anti-rotation sheet is fixed on track switch provided with corresponding anti-rotation chip architecture, and using unilateral fixation for each bolt
On rail, but the anti-rotation sheet fixed effect of unilateral fixation is poor, and structure is complicated, realization bolt that can not be reliable and stable it is anti-
Pine.
Therefore, it is simple how to design a kind of structure, the reliable and stable retention device of anti-loosing effect becomes urgently to be resolved
The technical issues of.
Summary of the invention
The present invention is directed at least solve one of the technical problems existing in the prior art.
For this purpose, it is an aspect of the invention to propose a kind of screw retention device.
Another aspect of the present invention is to propose a kind of track switch.
In view of this, first aspect present invention provides a kind of screw retention device, comprising: space washer, be set to
At least two first limiting sections are provided on secure component, on space washer；Lock washer is set on space washer, locking
The second limiting section is provided on washer, the second limiting section matches connection with the first limiting section；Wherein, will be determined by screw bolt and nut
Position washer is fixed on component to be tightened, then lock washer is set on nut, and the first limiting section and the second limiting section are connected
It connects.
Screw retention device is provided according to the present invention, and screw retention device is by space washer and lock washer two parts group
At space washer is fixed on component to be tightened by screw bolt and nut, and bolt passes through component to be tightened and space washer and leads to
It crosses nut tightly to lock together, and nut is pressed on space washer.Lock washer is arranged on space washer, part of locking
Washer is matched with nut, to guarantee that nut can not relatively rotate inside lock washer, to nut is fastened on anti-
In loose washer.At least two pairs of mutually matched first limiting sections and the second limit are additionally provided on space washer and lock washer
Portion, when lock washer is set on space washer, the first limiting section and the second limiting section cooperate together, anti-to complete
Positioning of the loose washer on space washer.After completing assembly, lock washer is located in by the first limiting section and the second limiting section
On space washer, nut is located on lock washer, to guarantee that nut can be during the work time always in tightening state.
And by mutually matched first limiting section of setting at least two groups and the second limiting section may be implemented lock washer it is bilateral very
Screw retention device is avoided to occur structure during the work time to polygon positioning to promote the structural stability of anti-loose structure
The technical problems such as damage, and then realize and optimize product structure, promote the technical effect of product reliability and stability.
Specifically, track switch high-strength bolt is locking generallys use two kinds of anti-rotation chip architectures at present.One is be directed to adjacent two
A or three bolts, the anti-rotation sheet that multiple bolts share is provided in the anti-rotation sheet component, and multiple adjacent bolts are anti-with this
Rotor is connected, but the structure is only applicable to the occasion that multiple bolts are closely arranged, and for single hole bolt and is not suitable for.It is another
It is corresponding anti-rotation chip architecture to be provided with for each bolt, and anti-rotation sheet is fixed on to the rail of track switch using unilateral fixation
On, but the anti-rotation sheet fixed effect of unilateral fixation is poor, and structure is complicated, realization bolt that can not be reliable and stable it is locking.
In view of the above technical problems, on the one hand, present invention defines a kind of screw retention device that can work independently, the screw retention groups
Part is provided with corresponding space washer and lock washer for each bolt and nut, so that it is not applicable to solve screw retention device
The technical issues of single hole bolt.On the other hand, the present invention can phase provided at least two groups on space washer and lock washer
The first limiting section and the second limiting section mutually cooperated is realized locking by the first limiting section of at least two groups and the second limiting section
Double-side fastening of the gasket on locating shim even polygon fixation, to solve the injustice of structure stress caused by unilateral fixation
Weighing apparatus, the technical problems such as fixed effect is unstable, and the structure complexity of screw retention device is reduced, and then realize optimization
Product structure, the stability of elevator bolt retention device and the technical effect of reliability.
In addition, the screw retention device in above-mentioned technical proposal provided by the invention can also have following supplementary technology special
Sign:
In the above-mentioned technical solutions, it is preferable that screw retention device further include: the first pin hole is set on space washer；
Second pin hole is set on the second limiting section；Positioning pin, when lock washer is assemblied on space washer, positioning pin passes through the
One pin hole and the second pin hole.
In the technical scheme, the first pin hole is provided on space washer, and the first pin hole partially passes through the first limiting section,
The second pin hole is provided on second limiting section, when completing the mating connection of the first limiting section and the second limiting section, the first pin hole
Axis and the axis of the second pin hole coincide together, positioning pin is then passed through into the first pin hole and the second pin hole, it is anti-to complete
Loose washer is fixedly connected with space washer, to guarantee that nut fixed in lock washer will not relatively rotate, is realized
The technical effect of elevator bolt retention device structural stability, and positioning pin and the connection type of pin hole cooperation are detachably to connect
It connects, user can be by the maintenance and replacement of the simple and fast completion screw retention device of dismounting positioning pin, and then plays optimization
Product connection structure promotes product structure stability, optimizes Product Assembly process, promotes the technical effect of user experience.
In any of the above-described technical solution, it is preferable that screw retention device further include: bolt hole is set to space washer
On, bolt passes through space washer by bolt hole；Nut bore is set on lock washer, and lock washer is set in by nut bore
On nut.
In the technical scheme, bolt hole is the bolt location structure on space washer, and bolt passes through positioning by bolt hole
Washer is to link together space washer and component to be tightened.Nut bore is the nut location structure on lock washer, nut
It is located in lock washer by nut bore, opposite turn can occur in check washer to avoid nut by the way that nut bore is arranged
It is dynamic, to realize the locking functions of nut.It is set as poroid with location structure by that will connect, can guarantee nut anti-looseness function
The difficulty of processing of space washer and lock washer is reduced while can be effectively, and then plays optimization screw retention device structure, it is excellent
Change product processing technique, reduces the technical effect of product processing cost.
In any of the above-described technical solution, it is preferable that the first limiting section of screw retention device is two, two first limits
Portion is symmetrically disposed on the two sides of the axis of bolt hole；Second limiting section is two, and two the second limiting sections are symmetrically disposed on nut
The two sides of the axis in hole.
In the technical scheme, by two the first limiting sections of setting and two the second limiting sections, screw retention is realized
The bilateral positioning of component avoids going out during the work time to improve the position stability and reliability of positioning of lock washer
The technical issues of existing first limiting section and the second limiting section damage.By the way that two group of first limiting section and the second limiting section are symmetrically set
The two sides in bolt hole and nut bore are set, the two sides stress of space washer and lock washer can be made mutually to balance, avoid positioning
Washer and lock washer generate deformation because of force unbalance, and then realize elevator bolt retention device structural stability and can
By the technical effect of property.
In any of the above-described technical solution, it is preferable that the first limiting section is square hole；Second limiting section is locking to protrude from
The square column of washer；Wherein, in square column insertion square hole, for lock washer to be located in space washer.
In the technical scheme, by the way that the first limiting section and the second limiting section are arranged to mutually matched hole rod structure,
Make the second limiting section that can complete first positioning of the lock washer on space washer after being inserted into the first limiting section, wherein side
Shape hole rod structure opposing circular hole rod structure has more preferably locating effect, can further avoid lock washer on space washer
Rotation；The structure of another aspect hole post cooperation is simple, and difficulty of processing is lower, can reduce the production cost of product, and then play
Optimize screw retention device structure, lift structure stability, optimization Product Process reduces the technical effect of cost.
In any of the above-described technical solution, it is preferable that the first limiting section is spaced two gussets；Second limiting section
For the square column for protruding from lock washer；Wherein, formed between spaced two gussets it is fluted, square column be arranged in groove
It is interior, for lock washer to be located in space washer.
In the technical scheme, another first limiting section and the second limiting section fit structure are provided, in this configuration
By setting spaced two gussets for the first limiting section, so that being formd between two gussets used for positioning rectangular
Groove, the second limiting section are the square column to match with groove, in assembling process that square column card is locking to complete in a groove
First positioning of the washer on space washer, so that lock washer be avoided to rotate on space washer.By the way that the first positioning region is set
It is set to groove-like structure, the difficulty of processing of the first positioning region can be reduced, such as gusset can be integrally formed on space washer, and
Elongation of second positioning region on lock washer can also be shortened by the way that the connection structure that slot column matches is arranged, to be promoted
The structural stability of lock washer, so realize optimization screw retention device connection structure, promoted product structure stability and
The technical effect of reliability.
In any of the above-described technical solution, it is preferable that positioning pin is split pin.
In the technical scheme, split pin is structure maturation and the structural member with unified standard, by setting positioning pin
The purchase cost of product can be reduced by being set to split pin, guarantee the reliable and stable of connection, and then realize reduction screw retention device
The technical effect of production cost.
In any of the above-described technical solution, it is preferable that nut is hex nut；Nut bore is perpendicular to nut axially bored line
The section side Shang Cheng24 shape.
In the technical scheme, nut is hex nut, and hex nut is standard component, can reduce nut using standard component
Purchase cost.By setting 24 side shapes for nut bore, it can make formation 12 in nut bore that can match with hex nut
Orientation angle, allow the hex nut being arranged in nut bore to avoid rotating under the action of orientation angle, and then realize spiral shell
The locking functions of bolt, play and optimize product structure, and promote product orientation reliability, reduce the technical effect of production cost.
In any of the above-described technical solution, it is preferable that screw retention device further include: counterbore is set on space washer；
Gasket is set in counterbore.
In the technical scheme, by the way that gasket is arranged between nut and space washer, on the one hand to avoid nut and can determine
Position washer directly contacts, and prevents from generating abrasion between nut and space washer；It on the other hand can be by pressing caused by gasket
Frictional force further prevents nut to generate loosening.Gasket is located on space washer by counterbore by the way that counterbore is arranged,
To avoid gasket from misplacing on space washer, and then optimization screw retention device connection structure is played, lift structure is steady
Qualitative technical effect.
Second aspect of the present invention provides a kind of track switch, and the track switch includes bolt described in any of the above-described technical solution
Retention device, the whole beneficial effects for the screw retention device that there is the track switch any of the above-described technical solution to provide.
Additional aspect and advantage of the invention will become obviously in following description section, or practice through the invention
Recognize.
Detailed description of the invention
Above-mentioned and/or additional aspect of the invention and advantage will become from the description of the embodiment in conjunction with the following figures
Obviously and it is readily appreciated that, in which:
Fig. 1 shows the structural schematic diagram of one of the relevant technologies screw retention device；
Fig. 2 shows the structural schematic diagrams of another screw retention device in the related technology；
Fig. 3 shows the structural schematic diagram of the screw retention device provided according to one embodiment of present invention；
Fig. 4 is the knot of the space washer of the screw retention device shown in Fig. 3 provided according to one embodiment of present invention
Structure schematic diagram；
Fig. 5 is the knot of the lock washer of the screw retention device shown in Fig. 3 provided according to one embodiment of present invention
Structure schematic diagram；
Fig. 6 shows the cross-sectional view of the screw retention device provided according to one embodiment of present invention；
Fig. 7 shows the structural schematic diagram of the screw retention device provided according to another embodiment of the invention；
Fig. 8 is the space washer of the screw retention device shown in Fig. 7 provided according to another embodiment of the invention
Structural schematic diagram；
Fig. 9 is the lock washer of the screw retention device shown in Fig. 7 provided according to another embodiment of the invention
Structural schematic diagram.
Wherein, corresponding relationship of the Fig. 3 into Fig. 9 between appended drawing reference and component names are as follows:
1 screw retention device, 2 components to be tightened, 10 bolts, 20 nuts, 30 space washers, 302 first limiting sections, 304
First pin hole, 306 bolts hole, 40 lock washers, 402 second limiting sections, 404 second pin holes, 406 nut bores, 50 positioning pins.
Specific embodiment
To better understand the objects, features and advantages of the present invention, with reference to the accompanying drawing and specific real
Mode is applied the present invention is further described in detail.It should be noted that in the absence of conflict, the implementation of the application
Feature in example and embodiment can be combined with each other.
In the following description, numerous specific details are set forth in order to facilitate a full understanding of the present invention, still, the present invention may be used also
To be implemented using other than the one described here other modes, therefore, protection scope of the present invention is not by described below
Specific embodiment limitation.
Screw retention device 1 and track switch according to some embodiments of the invention are described referring to Fig. 3 to Fig. 9.
In view of this, embodiment according to a first aspect of the present invention proposes a kind of screw retention as shown in figs. 3 to 9
Component 1, comprising: space washer 30 is set on component 2 to be tightened, and at least two first limits are provided on space washer 30
Portion 302；Lock washer 40 is set on space washer 30, and the second limiting section 402, the second limit are provided on lock washer 40
Portion 402 matches connection with the first limiting section 302；Wherein, space washer 30 is fixed on by bolt 10 and nut 20 to be tightened
On component 2, then lock washer 40 is set on nut, the first limiting section 302 is connected with the second limiting section 402.
The screw retention device 1 provided according to the present invention, screw retention device 1 is by space washer 30 and 40 liang of lock washer
Part forms, and space washer 30 is fixed on component 2 to be tightened by bolt 10 and nut 20, and bolt passes through component 2 to be tightened
It is tightly locked together with space washer 30 and by nut 20, and nut 20 is pressed on space washer 30.Lock washer 40 is arranged
On space washer 30, part of lock washer 40 is matched with nut 20, to guarantee that nut 20 can not be in lock washer 40
Inside relatively rotates, so that nut 20 is fastened in lock washer 40.It is also set on space washer 30 and lock washer 40
It is equipped at least two pairs of mutually matched first limiting sections 302 and the second limiting section 402, when lock washer 40 is set in space washer
When on 30, the first limiting section 302 and the second limiting section 402 cooperate together, to complete lock washer 40 in space washer
Positioning on 30.After completing assembly, lock washer 40 is located in locating pad by the first limiting section 302 and the second limiting section 402
On circle 30, nut 20 is located on lock washer 40, so that guaranteeing that nut 20 can be in always during the work time screws shape
State.And lock washer may be implemented by mutually matched first limiting section 302 of setting at least two groups and the second limiting section 402
40 bilateral or even polygon positioning avoids screw retention device 1 in the course of work to promote the structural stability of anti-loose structure
In there are the technical problems such as structural failure, and then realize and optimize product structure, promote the technology effect of product reliability and stability
Fruit.
Specifically, track switch high-strength bolt is locking generallys use two kinds of anti-rotation chip architectures at present.One is be directed to adjacent two
A or three bolts, as shown in Figure 1, the anti-rotation sheet that multiple bolts share is provided in the anti-rotation sheet component, multiple adjacent spiral shells
Bolt is connected with the anti-rotation sheet, but the structure is only applicable to the occasion that multiple bolts are closely arranged, not for single hole bolt
It is applicable in.Another kind is to be provided with corresponding anti-rotation chip architecture for each bolt, as shown in Fig. 2, will be prevented using unilateral fixation
Rotor is fixed on the rail of track switch, but the anti-rotation sheet fixed effect of unilateral fixation is poor, and structure is complicated, and can not stablize can
That leans on realizes the locking of bolt.In view of the above technical problems, on the one hand, it is anti-that present invention defines a kind of bolts that can work independently
Loose component 1, the screw retention device 1 are provided with corresponding space washer 30 and lock washer for each 10 nut 20 of bolt
40, to solve the technical issues of screw retention device 1 is not suitable for single hole bolt.On the other hand, the present invention is in space washer
30 and lock washer 40 on be provided at least two groups can be passed through with mutually matched first limiting section 302 and the second limiting section 402
At least two groups the first limiting section 302 and the second limiting section 402, realize double-side fastening of the check washer on locating shim even
Polygon fixation, to solve the imbalance of structure stress caused by unilateral fixation, the technical problems such as fixed effect is unstable, and
And the structure complexity of screw retention device 1 is reduced, and then realize and optimize product structure, elevator bolt retention device 1
The technical effect of stability and reliability.
Specifically, when screw retention device 1 is applied on the track switch of rail, component 2 to be tightened is rail, wherein fixed
It is provided with curved surface on the one side that position washer 30 is in contact with rail, the shape phase at the shape of the curved surface and the web of the rail of rail
Match, when space washer 30 is fastened in rail waist side by bolt 10 and nut 20, space washer 30 passes through curved surface and steel
Rail is tightly stuck, to make the space washer fastened 30 that can not rotate on rail, further strengthens space washer 30 and exists
Locating effect on component 2 to be tightened, and then optimization 1 connection structure of screw retention device is realized, it promotes product structure and stablizes
Property and reliability, improve screw retention performance technical effect.
In one embodiment of the invention, it is preferable that as shown in Fig. 4 to Fig. 9, screw retention device 1 further include: first
Pin hole 304 is set on space washer 30；Second pin hole 404 is set on the second limiting section 402；Positioning pin 50, when locking
When washer 40 is assemblied on space washer 30, positioning pin 50 passes through the first pin hole 304 and the second pin hole 404.
In this embodiment, the first pin hole 304 is provided on space washer 30, and the first pin hole 304 partially passes through first
Limiting section 302 is provided with the second pin hole 404 on second limiting section 402, when completing the first limiting section 302 and the second limiting section 402
Mating connection when, the axis of the axis of the first pin hole 304 and the second pin hole 404 coincides together, and then wears positioning pin 50
The first pin hole 304 and the second pin hole 404 are crossed, to complete being fixedly connected for lock washer 40 and space washer 30, to guarantee anti-
Fixed nut 20 will not relatively rotate in loose washer 40, realize the technology of 1 structural stability of elevator bolt retention device
Effect, and positioning pin 50 and the connection type of pin hole cooperation are to be detachably connected, and user can pass through 50 letter of dismounting positioning pin
Single maintenance and replacement for efficiently completing screw retention device 1, and then optimization product connection structure is played, it is steady to promote product structure
It is qualitative, optimize Product Assembly process, promotes the technical effect of user experience.
In one embodiment of the invention, it is preferable that as shown in Fig. 4 to Fig. 9, screw retention device 1 further include: bolt
Hole 306 is set on space washer 30, and bolt 10 passes through space washer 30 by bolt hole 306；Nut bore 406 is set to locking
On washer 40, lock washer 40 is set on nut 20 by nut bore 406.
In this embodiment, bolt hole 306 is the bolt location structure on space washer 30, and bolt 10 is by bolt hole 306
Across space washer 30 space washer 30 and component to be tightened 2 to link together.Nut bore 406 is on lock washer 40
Nut location structure, nut 20 are located in lock washer 40 by nut bore 406, can be to avoid by setting nut bore 406
Nut 20 relatively rotates in check washer, to realize the locking functions of nut 20.By that will connect and location structure
It is set as poroid, the processing of space washer 30 and lock washer 40 can be reduced while guaranteeing that 20 locking functions of nut are effective
Difficulty, and then optimization 1 structure of screw retention device is played, optimize product processing technique, the technology effect of reduction product processing cost
Fruit.
In one embodiment of the invention, it is preferable that as shown in Fig. 4 to Fig. 9,1 first limiting section of screw retention device
302 be two, and two the first limiting sections 302 are symmetrically disposed on the two sides of the axis of bolt hole 306；Second limiting section 402 is two
A, two the second limiting sections 402 are symmetrically disposed on the two sides of the axis of nut bore 406.
In this embodiment, by two the first limiting sections 302 of setting and two the second limiting sections 402, bolt is realized
The bilateral positioning of retention device 1 avoids to improve the position stability and reliability of positioning of lock washer 40 worked
Occurs the technical issues of the first limiting section 302 and damage of the second limiting section 402 in journey.By by two group of first 302 He of limiting section
Second limiting section 402 is symmetricly set on the two sides of bolt hole 306 and nut bore 406, can make space washer 30 and lock washer
40 two sides stress mutually balances, and space washer 30 and lock washer 40 is avoided to generate deformation, Jin Ershi because of force unbalance
The technical effect of elevator bolt retention device 1 structural stability and reliability is showed.
In one embodiment of the invention, it is preferable that as shown in Figures 3 to 6, the first limiting section 302 is square hole；The
Two limiting sections 402 are the square column for protruding from lock washer 40；Wherein, it in square column insertion square hole, is used for lock washer
40 are located on space washer 30.
In this embodiment, by the way that the first limiting section 302 and the second limiting section 402 are arranged to mutually matched hole post knot
Structure makes the second limiting section 402 that can complete lock washer 40 after being inserted into the first limiting section 302 first on space washer 30
Positioning, wherein square hole rod structure opposing circular hole rod structure has more preferably locating effect, can further avoid lock washer
40 rotate on space washer 30；The structure of another aspect hole post cooperation is simple, and difficulty of processing is lower, can reduce the life of product
Cost is produced, and then plays optimization 1 structure of screw retention device, lift structure stability, optimization Product Process reduces the skill of cost
Art effect.
In one embodiment of the invention, it is preferable that as shown in Figure 7 to 9, the first limiting section 302 is interval setting
Two gussets；Second limiting section 402 is the square column for protruding from lock washer 40；Wherein, between spaced two gussets
Formed it is fluted, square column be arranged in groove, for lock washer 40 to be located in space washer 30.
In this embodiment, another first limiting section 302 and 402 fit structure of the second limiting section are provided, in the knot
By setting spaced two gussets for the first limiting section 302 in structure, so that being formd between two gussets for fixed
The square groove of position, the second limiting section 402 are the square column to match with groove, in assembling process in a groove by square column card
To complete first positioning of the lock washer 40 on space washer 30, so that lock washer 40 be avoided to rotate on space washer 30.
By setting groove-like structure for the first positioning region, the difficulty of processing of the first positioning region can be reduced, for example, gusset can integrally at
Type can also shorten the second positioning region in locking pad on space washer 30, and by the way that the connection structure that slot column matches is arranged
Elongation on circle 40 to promote the structural stability of lock washer 40, and then realizes optimization screw retention device 1 and connects
Structure promotes the technical effect of product structure stability and reliability.
In one embodiment of the invention, it is preferable that positioning pin 50 is split pin.
In this embodiment, split pin is structure maturation and the structural member with unified standard, by setting positioning pin 50
The purchase cost of product can be reduced by being set to split pin, guarantee the reliable and stable of connection, and then realize reduction screw retention device 1
The technical effect of production cost.
In one embodiment of the invention, it is preferable that as shown in figs. 3 to 9, nut 20 is hex nut；Nut bore
406 in the section side the Shang Cheng24 shape perpendicular to 406 axis of nut bore.
In this embodiment, nut 20 is hex nut, and hex nut is standard component, can reduce nut using standard component
20 purchase cost.By setting 24 side shapes for nut bore 406, can make to form 12 in nut bore 406 can be with hexagonal spiral shell
The matched orientation angle of parent phase, allows the hex nut being arranged in nut bore 406 to avoid rotating under the action of orientation angle, into
And the locking functions of bolt 10 are realized, it plays and optimizes product structure, promote product orientation reliability, reduce production cost
Technical effect.
In one embodiment of the invention, it is preferable that screw retention device 1 further include: counterbore is set to space washer
On 30；Gasket is set in counterbore.
In this embodiment, by the way that gasket is arranged between nut and space washer 30, on the one hand can to avoid nut 20 with
Space washer 30 directly contacts, and prevents from generating abrasion between nut 20 and space washer 30；It on the other hand can be by pressing gasket
Generated frictional force further prevents nut 20 to generate loosening.Gasket is located in by counterbore by the way that counterbore is arranged
On the washer 30 of position, so that gasket be avoided to misplace on space washer 30, and then the optimization connection knot of screw retention device 1 is played
Structure, the technical effect of lift structure stability.
A kind of track switch is provided in the embodiment of second aspect of the present invention, the track switch includes institute in any of the above-described embodiment
The screw retention device 1 stated, the whole beneficial effects for the screw retention device 1 which there is any of the above-described embodiment to provide.
In one particular embodiment of the present invention, assemble flow of the screw retention device 1 on track switch is as follows:
1) space washer 30 is arranged in the waist side of the rail on track switch, makes the upper jaw and the lower jaw of space washer 30 and rail
It is close together, and by the bolt hole 306 on the bolt hole 306 and space washer 30 on rail to just；
2) bolt 10 is inserted into the bolt hole 306 of rail and space washer 30, is subsequently mounted gasket, and pass through tightening nut
20 complete connection；
3) by 406 sets of the nut bore of lock washer 40 on nut 20, while the second limiting section 402 is inserted into space washer
In the first limiting section 302 on 30, and the first pin hole 304 and the second pin hole 404 are aligned；
4) two split pins are installed, from the first pin hole 304 insertion on 30 side of space washer, across lock washer 40
The second pin hole 404 on second limiting section 402, and insert from the other side of space washer 30, two limb of split pin is opened, peace is completed
Dress.
In the present invention, the terms such as term " installation ", " connected ", " connection ", " fixation " shall be understood in a broad sense, for example,
" connection " may be fixed connection or may be dismantle connection, or integral connection；" connected " can be directly connected,
It can be indirectly connected through an intermediary.For the ordinary skill in the art, on can understanding as the case may be
State the concrete meaning of term in the present invention.
In the description of this specification, the description of term " one embodiment ", " some embodiments ", " specific embodiment " etc.
Mean that particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least one reality of the invention
It applies in example or example.In the present specification, schematic expression of the above terms are not necessarily referring to identical embodiment or reality
Example.Moreover, description particular features, structures, materials, or characteristics can in any one or more of the embodiments or examples with
Suitable mode combines.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of screw retention device characterized by comprising
Space washer is set on component to be tightened, and at least two first limiting sections are provided on the space washer；
Lock washer is set on the space washer, and the second limiting section, second limit are provided on the lock washer
Portion matches connection with first limiting section；
Wherein, the space washer is fixed on the component to be tightened by screw bolt and nut, then by the lock washer
It is set on the nut, first limiting section is connected with second limiting section.
2. screw retention device according to claim 1, which is characterized in that further include:
First pin hole is set on the space washer；
Second pin hole is set on second limiting section；
Positioning pin, when the lock washer is assemblied on the space washer, the positioning pin pass through first pin hole and
Second pin hole.
3. screw retention device according to claim 1, which is characterized in that further include:
Bolt hole is set on the space washer, and the bolt passes through the space washer by the bolt hole；
Nut bore is set on the lock washer, and the lock washer is set on the nut by the nut bore.
4. screw retention device according to claim 3, it is characterised in that:
First limiting section is two, and two first limiting sections are symmetrically disposed on the two sides of the axis of the bolt hole；
Second limiting section is two, and two second limiting sections are symmetrically disposed on the two sides of the axis of the nut bore.
5. screw retention device according to claim 4, it is characterised in that:
First limiting section is square hole；
Second limiting section is the square column for protruding from the lock washer；
Wherein, the square column is inserted into the square hole, for the lock washer to be located in the space washer.
6. screw retention device according to claim 4, it is characterised in that:
First limiting section is spaced two gussets；
Second limiting section is the square column for protruding from the lock washer；
Wherein, formed between spaced two gussets it is fluted, square column setting in the groove, for will
The lock washer is located on the space washer.
7. the screw retention device according to any one of claim 2 to 6, it is characterised in that:
The positioning pin is split pin.
8. screw retention device according to any one of claim 3 to 6, it is characterised in that:
The nut is hex nut；
The nut bore is in the section side the Shang Cheng24 shape perpendicular to the nut axially bored line.
9. screw retention device according to any one of claim 3 to 6, which is characterized in that further include:
Counterbore is set on the space washer；
Gasket is set in the counterbore.
10. a kind of track switch, which is characterized in that including screw retention device as claimed in any one of claims 1-9 wherein.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811609001.0A CN109554962B (en) | 2018-12-27 | 2018-12-27 | Bolt anti-loosening assembly and turnout |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811609001.0A CN109554962B (en) | 2018-12-27 | 2018-12-27 | Bolt anti-loosening assembly and turnout |
Publications (2)
| Publication Number | Publication Date |
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| CN109554962A true CN109554962A (en) | 2019-04-02 |
| CN109554962B CN109554962B (en) | 2023-12-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811609001.0A Active CN109554962B (en) | 2018-12-27 | 2018-12-27 | Bolt anti-loosening assembly and turnout |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110118222A (en) * | 2019-06-04 | 2019-08-13 | 广东览讯科技开发有限公司 | A kind of spacer for bolt preventing rotation |
| CN113530954A (en) * | 2021-09-02 | 2021-10-22 | 宝鸡市金成工贸有限责任公司 | Anti-loosening mechanism for transverse mounting bolt of rail |
| CN114198381A (en) * | 2021-03-05 | 2022-03-18 | 宝鸡市金成工贸有限责任公司 | Anti-loosening combined gasket and self-adaptive locking structure for rail |
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|---|---|
| CN109554962B (en) | 2023-12-26 |
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