CN206409546U - A kind of powder metallurgy brake block and the arrestment mechanism with it - Google Patents
A kind of powder metallurgy brake block and the arrestment mechanism with it Download PDFInfo
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- CN206409546U CN206409546U CN201720081451.1U CN201720081451U CN206409546U CN 206409546 U CN206409546 U CN 206409546U CN 201720081451 U CN201720081451 U CN 201720081451U CN 206409546 U CN206409546 U CN 206409546U
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- brake
- watt
- brake pad
- block
- wheel
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Abstract
The utility model provides a kind of powder metallurgy brake block and the arrestment mechanism with it, wherein powder metallurgy brake block includes watt back of the body, steel back, watt nose, block and brake pad, on watt nose, the lateral surface for being arranged on the described watt of back of the body, for being fixedly connected with the Wa Tuo on locomotive；On block, the lateral surface for being arranged on the described watt of back of the body；Brake pad, at least one, it is fixedly mounted on by steel back on watt medial surface of the back of the body, the side towards vehicle flange of brake pad is provided with buffering suface, cushion space is formed between the wheel portion of buffering suface corresponding thereto, when locomotive driving curve is more and the less route of radius of turn on, and wheel transverse shifting amplitude it is larger when, width of the amplitude of wheel transverse shifting not over cushion space, so as to prevent wheel collision friction block, it will not thus cause brake pad to damage or drop, reduce maintenance replacement cost.
Description
Technical field
The utility model is related to locomotive brake technical field, and in particular to a kind of powder metallurgy brake block and the braking with it
Mechanism.
Background technology
Brake shoe is the important component of railway locomotive braking, is mainly made up of a watt nose, watt back of the body and brake pad, brake shoe passes through a watt nose
It is fixed in watt support being connected with locomotive.In braking, air damper produces thrust, promotes a watt support movement, brake shoe is fitted
On wheel tread, so as to brake railway locomotive by the frictional force of brake pad and wheel tread.
According to the difference of material, brake shoe can be divided into cast iron brake shoe, composite brake shoe and powder metallurgy brake block.Powder metallurgy brake block
Be using metal dust as matrix, add friction and lubriation material, be made of PM technique, due to it is wear-resistant, lead
Hot property is excellent, the advantages of hot-cracking resistance is good, and has obtained extensive utilization.
Inventor in practice, it has been found that when train vibration influence curve is more and the less route of radius of turn on when (as revived
Red railway), wheel transverse shifting amplitude is larger, and the wheel rim positioned at wheel side encounters brake pad sometimes, causes brake pad to damage
Hinder or drop, it is necessary to staff often overhauls replacing, add maintenance replacement cost.Our countries use standard gauge iron
Road, and in some countries, such as the Sudan uses narrow gauge railway, because the wheel width used on narrow gauge railway compares standard gauge
It is small, in order to ensure certain friction area, the spacing ratio standard gauge to be set of wheel rim and brake pad side will be more
Small, wheel rim is easier to touch brake pad side, causes brake pad easily to wear and tear or drop；Further, since matching somebody with somebody with wheel
Cover the brake shoe width used to reduce, cause the friction area of brake pad and wheel tread to reduce, Block brake effect is bad, influence
Traffic safety.
Utility model content
Therefore, the technical problems to be solved in the utility model is train vibration influence curve is more, radius of turn is less
On route, wheel rim can encounter brake pad so that brake pad is damaged or dropped, it is necessary to making personnel often overhauls replacings, increase
Maintenance replacement cost, so that providing a kind of wheel rim that reduces encounters brake pad, brake pad not easy damaged or the powder dropped
Metallurgical brake shoe.
The utility model also provides a kind of arrestment mechanism with above-mentioned powder metallurgy brake block.
Therefore, the utility model provides a kind of powder metallurgy brake block, including：
Watt the back of the body；
On watt nose, the lateral surface for being arranged on the described watt of back of the body, for being fixedly connected with the Wa Tuo on locomotive；
On block, the lateral surface for being arranged on the described watt of back of the body；
Also include：
Brake pad, is fixedly mounted on the described watt of medial surface carried on the back, the court of the brake pad by steel back by least one
Buffering suface is provided with to the side of vehicle flange, cushion space is formed between the buffering suface and wheel portion corresponding thereto, uses
The brake pad is collided in preventing wheel rim.
As a kind of preferred scheme, the buffering suface be arranged in parallel with wheel rim part corresponding thereto.
As a kind of preferred scheme, deposition has deposition in the first layers of copper, the one side of steel back to have the second bronze medal on the brake pad
Layer, first layers of copper and second layers of copper are fitted contact after melt at high temperature so that by the brake pad and the steel
The back of the body is fixed together.
As a kind of preferred scheme, shape in some first planes, first plane is formed with described watt of back of the body medial surface
The limited impression that steel back size described in Cheng Youyu is adapted, the limited impression bottom is provided with some first mounting holes；The steel
The back of the body is fit into inside the limited impression, and the steel back part be connected with the brake pad provided with described the
Relative some second mounting holes of one mounting hole, will be described through first mounting hole and second mounting hole using rivet
Steel back and the described watt of back of the body are fixed together.
As a kind of preferred scheme, between the two neighboring steel back have radiating gap, also, described watt the back of the body be located at
Medial surface in the radiating gap is higher than the radiating block of the brake pad provided with thermal conductivity.
As a kind of preferred scheme, the sign for being used for identifying friction level is provided with positioned at the brake pad of marginal position
Line.
The utility model, which is provided, also provides a kind of arrestment mechanism, including watt support, and is fixedly mounted in described watt of support
The brake shoe of arrangement before and after at least two, the brake shoe is above-mentioned powder metallurgy brake block.
As a kind of preferred scheme, the thickness of the brake pad close to described watt of support medium position of the brake shoe, less than by
The thickness of the brake pad of nearly described watt of support marginal position, to cause the rubbing surface towards wheel side of two brake shoes to be formed
One cambered surface parallel with wheel face.
As a kind of block piece in the gap between preferred scheme, in addition to the two neighboring brake shoe of covering, for preventing
Only debris enters.
As a kind of preferred scheme, the arc length sum of the direction wheel side of two brake shoes is the car
Take turns the 1/12-1/10 of circumferential length.
The powder metallurgy brake block that the utility model is provided and the arrestment mechanism with it, with advantages below：
1. powder metallurgy brake block of the present utility model, including watt back of the body, steel back, watt nose, block and brake pad, wherein rubbing
Block, is fixedly mounted on watt medial surface of the back of the body, the side towards vehicle flange of brake pad is provided with by steel back by least one
Cushion space is formed between buffering suface, buffering suface and wheel portion corresponding thereto, when locomotive driving is more and turn in curve
On the less route of radius, and wheel transverse shifting amplitude it is larger when, the amplitude of wheel transverse shifting is not over cushion space
Width, so as to prevent wheel collision friction block, thus brake pad will not be caused to damage or drop, reduce maintenance and change
Cost.
2. powder metallurgy brake block of the present utility model, buffering suface be arranged in parallel with wheel rim part corresponding thereto, by
In arc shape of the wheel rim for bending, set buffering suface parallel with wheel rim part, buffering suface and wheel can ensured
Between rim section in the case of the cushion space with uniform width, increase the volume of brake pad, improve braking effect；Separately
Outside, it is also beneficial to avoid to form the cushion space that width differs between brake pad and wheel rim, cushion space width is larger
Debris is easily accumulated at place, and unnecessary damage is easily caused to wheel or brake pad.
3. deposition has deposition in the first layers of copper, steel back to have the second bronze medal on powder metallurgy brake block of the present utility model, brake pad
Connection is melted after layer, the first layers of copper and the laminating contact of the second layers of copper, brake pad and steel back one can be closely rigidly attached to
Rise.
4. it is formed with powder metallurgy brake block of the present utility model, watt back of the body medial surface in some first planes, the first plane
The limited impression being adapted with steel back size is formed with, limited impression bottom is provided with some first mounting holes；Steel back is fit into
Inside limited impression, and the part not connected with brake pad of steel back is installed provided with relative with the first mounting hole some second
Steel back and a watt back of the body, are fixed together by hole using rivet through the first mounting hole and the second mounting hole.It is of the present utility model
Powder metallurgy brake block, compared with fixing the mode of steel back and watt back of the body only with rivet in the prior art, energy is added in a watt back
The limited impression that enough and steel back profile matches, steel back is fit into after limited impression first, then is fixed by rivet with a watt back of the body
Connection, when locomotive brake, limited impression and rivet undertake stress, thus the requirement reduction met with stresses to rivet simultaneously,
When braking stress is larger, rivet fracture, the problem of brake pad drops, so as to improve traffic safety can be avoided the occurrence of.
5. there is radiating gap between powder metallurgy brake block of the present utility model, the two neighboring steel back, also, it is described
The medial surface being located in the radiating gap of watt back of the body is provided with the high radiating block of thermal conductivity.During locomotive brake, brake pad and car
Produce amount of heat between wheel rapidly because of friction, radiating block can rapidly absorb and keep in this partial heat, so as to reduce rapidly
Synthesize the temperature between brake pad and wheel, the possibility in reduction damage metallic wheel face.
6. cloth before and after arrestment mechanism of the present utility model, including watt support, and at least two be fixedly mounted in watt support
The brake shoe put, brake shoe be above-mentioned powder metallurgy brake block, as a result of above-mentioned powder metallurgy brake block, thus naturally with because
All advantages brought using above-mentioned powder metallurgy brake block, and two brake shoes are arranged in a watt of support, add system
The friction area of motivation structure and wheel, can be applied to the special requirement of narrow gauge railway, and good braking effect advantageously ensures that driving
Safety.
7. arrestment mechanism of the present utility model, a thickness for the brake pad of close watt of support medium position of brake shoe, less than close
The thickness of the synthesis brake pad of watt support marginal position, with cause the rubbing surface formation one towards wheel side of two brake shoes with
The parallel cambered surface of wheel face, so sets and each brake pad can fully be contacted with wheel face, contact is abundant, braking effect
It is good.
8. arrestment mechanism of the present utility model, block piece is additionally provided between two brake shoes, for avoiding foreign matter from entering, enter
And avoid the occurrence of the situation that the foreign matter being stuck between two brake shoes causes to scratch to wheel face.
9. arrestment mechanism of the present utility model, the arc length sum towards wheel side of two brake shoes is wheel circumference
The 1/12-1/10 of length, can reduce circumferential impulsive force of the wheel for brake shoe in braking, reduce a watt stress for support, improve
Service life.
Brief description of the drawings
In order to illustrate more clearly of the technical scheme in prior art or the utility model embodiment, below to existing
There is the accompanying drawing used in technology or embodiment description to be briefly described, it should be apparent that, for the common skill in this area
For art personnel, on the premise of not paying creative work, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the sectional view of powder metallurgy brake block.
Fig. 2 is the stereogram of powder metallurgy brake block.
Fig. 3 is Fig. 2 side view.
Fig. 4 is Fig. 2 top view.
Fig. 5 is the structural representation that powder metallurgy brake block is arranged in watt support.
Reference：1st, watt back of the body；11st, limited impression；12nd, the first mounting hole；13rd, the second mounting hole；14th, rivet；2nd, watt
Nose；3rd, brake pad；31st, buffering suface；32nd, marking line；4th, steel back；41st, radiating block；5th, block；6th, Wa Tuo.
Embodiment
The technical solution of the utility model is described with reference to Figure of description, it is clear that following embodiments are not
It is the whole embodiment of the utility model.Based on the embodiment described by the utility model, those of ordinary skill in the art are not having
There is the every other embodiment made and obtained under the premise of other creative works, belong to protection domain of the present utility model.
It should be noted that in description of the present utility model, term " first ", " second " are only used for describing purpose, and
It is not intended that indicating or implying relative importance.In addition, involved in the utility model different embodiments disclosed below
As long as and technical characteristic do not constitute each other conflict can just be combined with each other.
Embodiment 1
The present embodiment provides a kind of powder metallurgy brake block, as Figure 1-4, including watt back of the body 1；Watt nose 2, is arranged on described watt
On the lateral surface of the back of the body 1, for being fixedly connected with watt support 6 on locomotive；Block 5, is arranged on the lateral surface of the described watt of back of the body 1
On；Brake pad 3, is fixedly mounted on described watt by steel back 4 and carries on the back on 1 medial surface by least one, the court of the brake pad 3
Buffering suface 31 is provided with to the side of vehicle flange, buffering is formed between the buffering suface 31 and wheel portion corresponding thereto empty
Between, for preventing wheel from colliding the brake pad 3.When locomotive driving curve is more and the less route of radius of turn on, and
When wheel transverse shifting amplitude is larger, width of the amplitude not over cushion space of wheel transverse shifting, so as to prevent
Wheel collision friction block 3, thus brake pad 3 will not be caused to damage or drop, reduce maintenance replacement cost.
In the present embodiment, the buffering suface 31 be arranged in parallel with wheel portion corresponding thereto, because wheel rim is curved
Bent arc shape, sets buffering suface 31 parallel with wheel rim part, can ensure the buffering suface 31 and vehicle wheel edge
In the case of/a cushion space with uniform width, increase the volume of brake pad 3, improve braking effect；In addition, also having
Beneficial to the cushion space that formation width differs between brake pad 3 and wheel rim is avoided, cushion space width larger part is easy
Debris is accumulated, unnecessary damage easily is caused to wheel or brake pad 3.
Deposition has and deposited in the first layers of copper, the one side of steel back 4 on the powder metallurgy brake block of the present embodiment, the brake pad 3
There are the second layers of copper, first layers of copper to be melted at high temperature after being contacted with second layers of copper laminating, can be by brake pad 3 and steel
The back of the body 4 is closely rigidly attached to together.
Some first planes are formed with the powder metallurgy brake block of the present embodiment, described watt of 1 medial surface of the back of the body, described first is flat
The limited impression 11 being adapted with the size of steel back 4 is formed with face, the limited impression bottom is installed provided with some first
Hole 12；The steel back 4 is fit into inside the limited impression 11, and the steel back 4 is not connected with the brake pad 3
Part is provided with some second mounting holes 13 relative with first mounting hole 12, and first mounting hole is passed through using rivet 14
12 and second mounting hole 13 steel back 4 and the described watt of back of the body 1 are fixed together.The powder metallurgy lock of the present embodiment
Watt, compared with fixing the mode of steel back 4 and watt back of the body 1 only with rivet 14 in the prior art, being added on watt back of the body 1 can be with steel
The limited impression 11 that 4 profiles match is carried on the back, steel back 4 is fit into after limited impression 11 first, then consolidated by rivet 14 with a watt back of the body 1
Fixed connection, when locomotive brake, limited impression 11 and rivet 14 undertake stress simultaneously, thus to requirement that rivet 14 meets with stresses
Reduction, when braking stress is larger, can avoid the occurrence of rivet 14 and be broken, the problem of brake pad 3 drops, so as to improve row
Car safety.
There is radiating gap in the present embodiment, between the two neighboring steel back 4, also, described watt of back of the body 1 be located at it is described
The medial surface radiated in gap is higher than the radiating block 41 of the brake pad 3, during locomotive brake, the He of brake pad 3 provided with thermal conductivity
Produce amount of heat between wheel rapidly because of friction, radiating block 41 can rapidly absorb and keep in this partial heat, so that rapidly
Temperature between reduction synthesis brake pad 3 and wheel, the possibility in reduction damage metallic wheel face.
The powder metallurgy brake block of the present embodiment, being provided with positioned at the brake pad 3 of marginal position is used to identify friction journey
The marking line 32 of degree.
Embodiment 2
The present embodiment provides a kind of arrestment mechanism, as shown in figure 5, including watt support 6, and it is fixedly mounted on watt support 6
On at least two before and after arrangement brake shoes, the brake shoe be embodiment 1 described in powder metallurgy brake block, as a result of upper
The powder metallurgy brake block stated, thus there are all advantages because being brought using above-mentioned powder metallurgy brake block naturally, and by two
The individual brake shoe is arranged in a watt of support 6, is added the friction area of arrestment mechanism and wheel, can be applied to narrow gauge railway
Special requirement, good braking effect advantageously ensures that traffic safety.
The arrestment mechanism of the present embodiment, the thickness of the brake pad 3 close to the medium position of watt support 6 of the brake shoe is small
In the thickness of the brake pad 3 close to the marginal position of watt support 6, to cause the friction towards wheel side of two brake shoes
Face forms a cambered surface parallel with wheel face, so sets and each brake pad 3 can fully be contacted with wheel face, contact
Fully, good braking effect.
The block piece in the gap between the arrestment mechanism of the present embodiment, in addition to the two neighboring brake shoe of covering, is used for
Prevent debris from entering, and then avoid the occurrence of the situation that the foreign matter being stuck between two brake shoes causes to scratch to wheel face.
The arrestment mechanism of the present embodiment, the arc length sum of the direction wheel side of two brake shoes is described
The 1/12-1/10 of wheel circumference length, can reduce circumferential impulsive force of the wheel for the brake shoe in braking, reduce a watt support
6 stress, improves service life.
Obviously, above-described embodiment is only intended to clearly illustrate example, and the not restriction to embodiment.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of change or
Change.There is no necessity and possibility to exhaust all the enbodiments.And the obvious change thus extended out or
Among changing still in protection domain of the present utility model.
Claims (10)
1. a kind of powder metallurgy brake block, including：
Watt the back of the body (1)；
On watt nose (2), the lateral surface for being arranged on the described watt of back of the body (1), for being fixedly connected with the Wa Tuo (6) on locomotive；
On block (5), the lateral surface for being arranged on the described watt of back of the body (1)；
It is characterized in that：Also include：
Brake pad (3), is fixedly mounted on the described watt of medial surface for carrying on the back (1), the friction by steel back (4) by least one
The side towards vehicle flange of block (3) is provided with buffering suface (31), the buffering suface (31) and vehicle wheel edge corresponding thereto
/ formation cushion space, for preventing wheel from colliding the brake pad (3).
2. powder metallurgy brake block according to claim 1, it is characterised in that：The buffering suface (31) and car corresponding thereto
Wheel part be arranged in parallel.
3. powder metallurgy brake block according to claim 2, it is characterised in that：Deposition has the first bronze medal on the brake pad (3)
Layer, deposition has the second layers of copper in the one side of the steel back (4), first layers of copper is fitted with second layers of copper contact after in height
Temperature is lower to be melted, so that the brake pad (3) and the steel back (4) are fixed together.
4. powder metallurgy brake block according to claim 3, it is characterised in that：The described watt of back of the body (1) on medial surface if be formed with
The limited impression (11) being adapted with the steel back (4) size is formed with dry first plane, first plane, it is described spacing
Bottom portion of groove is provided with some first mounting holes (12)；The steel back (4) is fit into the limited impression (11) inside, and institute
The part not being connected with the brake pad (3) of steel back (4) is stated provided with relative with first mounting hole (12) some second
Mounting hole (13), first mounting hole (12) and second mounting hole (13) are passed through by the steel back using rivet (14)
(4) it is fixed together with the described watt of back of the body (1).
5. powder metallurgy brake block according to claim 4, it is characterised in that：Have between the two neighboring steel back (4)
Radiating gap, also, the medial surface being located in the radiating gap of the described watt of back of the body (1) is higher than the friction provided with thermal conductivity
The radiating block (41) of block (3).
6. powder metallurgy brake block according to claim 1, it is characterised in that：Positioned at the brake pad (3) of marginal position
It is provided with the marking line (32) for being used for identifying friction level.
7. a kind of arrestment mechanism, it is characterised in that：Including a watt support (6), and at least two be fixedly mounted in described watt of support (6)
The brake shoe of arrangement before and after individual, the brake shoe is the powder metallurgy brake block any one of claim 1-6.
8. arrestment mechanism according to claim 7, it is characterised in that：The position in described watt of support (6) of the brake shoe
The thickness for the brake pad (3) put, less than the thickness of the brake pad (3) close to described watt of support (6) marginal position, to cause two institutes
State rubbing surface one cambered surface parallel with wheel face of formation towards wheel side of brake shoe.
9. arrestment mechanism according to claim 8, it is characterised in that：Also including between the two neighboring brake shoe of covering
The block piece in gap, for preventing debris from entering.
10. arrestment mechanism according to claim 8, it is characterised in that：The direction wheel side of two brake shoes
Arc length sum be the wheel circumference length 1/12-1/10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720081451.1U CN206409546U (en) | 2017-01-22 | 2017-01-22 | A kind of powder metallurgy brake block and the arrestment mechanism with it |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720081451.1U CN206409546U (en) | 2017-01-22 | 2017-01-22 | A kind of powder metallurgy brake block and the arrestment mechanism with it |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206409546U true CN206409546U (en) | 2017-08-15 |
Family
ID=59556461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720081451.1U Expired - Fee Related CN206409546U (en) | 2017-01-22 | 2017-01-22 | A kind of powder metallurgy brake block and the arrestment mechanism with it |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206409546U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114589853A (en) * | 2022-03-23 | 2022-06-07 | 中铁隆昌铁路器材有限公司 | Device and method for preventing steel backing deflection in composite brake shoe pressing process |
| CN114754092A (en) * | 2022-03-18 | 2022-07-15 | 湖南金天铝业高科技股份有限公司 | Automobile brake disc and preparation method thereof |
-
2017
- 2017-01-22 CN CN201720081451.1U patent/CN206409546U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114754092A (en) * | 2022-03-18 | 2022-07-15 | 湖南金天铝业高科技股份有限公司 | Automobile brake disc and preparation method thereof |
| CN114754092B (en) * | 2022-03-18 | 2023-09-22 | 湖南湘投轻材科技股份有限公司 | Automobile brake disc and preparation method thereof |
| CN114589853A (en) * | 2022-03-23 | 2022-06-07 | 中铁隆昌铁路器材有限公司 | Device and method for preventing steel backing deflection in composite brake shoe pressing process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170815 Termination date: 20210122 |
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| CF01 | Termination of patent right due to non-payment of annual fee |