CN204954744U - Bush pressure equipment bolt - Google Patents
Bush pressure equipment bolt Download PDFInfo
- Publication number
- CN204954744U CN204954744U CN201520741300.5U CN201520741300U CN204954744U CN 204954744 U CN204954744 U CN 204954744U CN 201520741300 U CN201520741300 U CN 201520741300U CN 204954744 U CN204954744 U CN 204954744U
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- screw rod
- gland
- cover
- pressure
- head
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Abstract
The utility model discloses a bush pressure equipment bolt for downthehole to waiting to press the pressure of overlapping the work piece to overlap with the bush pressure equipment, the center of bush has the bush hole, it is including pressing cover screw rod, nut, two pressure covers and two ring flanges, press the cover screw rod to include screw rod head and screw rod pole portion, press the cover to be first pressure cover and second pressure cover respectively for two, two ring flanges are head flange and afterbody flange respectively, in the screw rod pole portion, following the screw rod head and beginning, coaxial cover is equipped with head flange, first pressure cover, second pressure cover, afterbody flange and nut in proper order, every the external diameter of ring flange all is greater than the external diameter of pressing the cover. After adopting above -mentioned structure, a pressure equipment, two bushes of pressure equipment simultaneously, pressure equipment bolt wearability is good, presses cover and all difficult damages of screw, and life is high, and the pressure equipment qualification rate is high, and it is good to neutrality that the pressure equipment homogeneity reaches, low in manufacturing cost.
Description
Technical field
The utility model relates to auxiliary mould, particularly a kind of bushing press-mounting bolt in the production of a kind of bogie.
Background technology
At present, train bogie is treated the bushing press-mounting in gland workpiece, is adopted manual operations more in producing, and operation inconvenience, production efficiency is low, press-fits uneven, and surface laminating not closely and easily produce sleeve outer surface and scratch, affects assembly quality.
For increasing work efficiency and making to press-fit more even, my department devises a kind of bushing press-mounting bolt, but in use, finds that screw thread is easy to damage.In addition, screw head also easily damages gland, causes the service life of bolt and gland very low, and need a large amount of bolt of making and gland to carry out for subsequent use, on the one hand, manufacturing cost significantly improves, and press-fits efficiency low; On the other hand, the workpiece after press-fiting, press-fits uniformity and also has much room for improvement.
Utility model content
The technical problems to be solved in the utility model is for above-mentioned the deficiencies in the prior art, and provides a kind of bushing press-mounting bolt, and this bushing press-mounting bolt wearability is good, gland and screw thread all not easy damaged, high life, press-fits qualification rate high, press-fit uniformity good, low cost of manufacture.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is:
A kind of bushing press-mounting bolt, for by bushing press-mounting in the pressing sleeve hole treating gland workpiece, the center of described lining has bush hole; Comprise gland screw rod, nut, two glands and two ring flanges; Described gland screw rod comprises screw head and screw rod bar portion; Two glands are respectively the first gland and the second gland, and two ring flanges are respectively head flanges and afterbody flange; In described screw rod bar portion, from screw head, coaxial sleeve is equipped with head flanges, the first gland, the second gland, afterbody flange and nut successively; The external diameter of each described ring flange is all greater than the external diameter of gland.
Screw thread on described gland screw rod is trapezoidal thread.
Described head flanges is fixedly connected with screw head.
Described afterbody flange is fixedly connected with nut.
The center of each described ring flange all has the screwed hole that can match with screw rod bar portion screw thread.
After the utility model adopts said structure, there is following beneficial effect:
1. the design of above-mentioned two ring flanges, can make bushing press-mounting bolt wearability good, and gland and screw thread all not easy damaged, high life, press-fits qualification rate high, press-fits uniformity good, low cost of manufacture.
2. to two, a bolt spinning, can treat that gland workpiece press-fits simultaneously, press-fit uniform force, press-fit efficiency high.
3. the design of above-mentioned trapezoidal thread, can make gland screw flight not easy damaged, and makes the whole centering press-fiting process good.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of bushing press-mounting bolt of the utility model.
Wherein have:
1. gland screw rod;
11. screw heads; 12. screw rod bar portions;
2. gland;
21. first glands; 22. second glands;
3. lining;
4. treat gland workpiece;
5. ring flange;
51. head flanges; 52. afterbody flanges;
6. nut.
Detailed description of the invention
Below in conjunction with accompanying drawing and concrete better embodiment, the utility model is described in further detail.
The bushing press-mounting bolt of the application, for press-fiting lining 3 in the pressing sleeve hole treating gland workpiece 4, the center of lining 3 has bush hole.
As shown in Figure 1, a kind of bushing press-mounting bolt, comprises gland screw rod 1, nut 6, two glands 2 and two ring flanges 5.
Above-mentioned gland screw rod 1 comprises screw head 11 and screw rod bar portion 12.Screw thread on gland screw rod 1 is preferably trapezoidal thread, the design of trapezoidal thread, can make the screw thread not easy damaged of gland screw rod 1, and makes the whole centering press-fiting process good.
Two glands 2 are respectively the first gland 21 and the second gland 22.
Two ring flanges 5 are respectively head flanges 51 and afterbody flange 52.
In above-mentioned screw rod bar portion 12, from screw head 11, coaxial sleeve is equipped with head flanges 51, first gland 21, second gland 22, afterbody flange 52 and nut 6 successively.
In addition, the external diameter of each ring flange 5 is all greater than the external diameter of gland 2.Like this, gland screw rod 1 can be prevented with nut 6 rundown process, and spanner etc. cause damage to gland 2.
Above-mentioned head flanges 51 of stating preferably is fixedly connected with screw head 11, as welding etc., forms an entirety, during suit, can reduce suit part.
Above-mentioned afterbody flange 52 is fixedly connected with nut 6, as welding etc., forms an entirety, during suit, can reduce suit part.
The center of each above-mentioned ring flange 5 all has the screwed hole that can match with screw rod bar portion 12 screw thread.As replacement, head flanges 51 or afterbody flange 52 also can directly be sleeved in screw rod bar portion 12.
A kind of bushing press-mounting method, comprises the steps:
The first step, loads head flanges 51 and the first gland 21: head flanges 51 and the first gland 21 are sleeved on successively in the screw rod bar portion 12 of gland screw rod 1, head flanges 51 is contacted with screw head 11, the first gland 21 contacts with head flanges 51.
In this step, gland screw rod 1, before suit, needs first entirety to carry out modifier treatment, then carries out surface hardening process.
In this step, head flanges 51 is preferably fixedly connected with screw head 11, therefore only the first gland 21 need be sleeved in screw rod bar portion 11, and makes it contact with head flanges 51.
Second step, gland 2 and lining 3 are installed: be sleeved on by a lining 3 in screw rod bar portion 12, after screw rod bar portion 12 is fixed from two positions successively treat pass the pressing sleeve hole of gland workpiece 4, then, then be set with lining 3, afterbody flange 52 and nut 6 successively in screw rod bar portion 12.
In this step, afterbody flange 52 is preferably fixedly connected with nut 6.
3rd step, two linings 3 synchronously press-fit: screwed by the nut 6 in second step, and fixed by nut 6; Then, screw gland screw rod 1, until lining 3 flattens.
More than describe preferred embodiment of the present utility model in detail; but; the utility model is not limited to the detail in above-mentioned embodiment; within the scope of technical conceive of the present utility model; can carry out multiple equivalents to the technical solution of the utility model, these equivalents all belong to protection domain of the present utility model.
Claims (5)
1. a bushing press-mounting bolt, for by bushing press-mounting in the pressing sleeve hole treating gland workpiece, the center of described lining has bush hole; It is characterized in that: comprise gland screw rod, nut, two glands and two ring flanges; Described gland screw rod comprises screw head and screw rod bar portion; Two glands are respectively the first gland and the second gland, and two ring flanges are respectively head flanges and afterbody flange; In described screw rod bar portion, from screw head, coaxial sleeve is equipped with head flanges, the first gland, the second gland, afterbody flange and nut successively; The external diameter of each described ring flange is all greater than the external diameter of gland.
2. bushing press-mounting bolt according to claim 1, is characterized in that: the screw thread on described gland screw rod is trapezoidal thread.
3. bushing press-mounting bolt according to claim 1, is characterized in that: described head flanges is fixedly connected with screw head.
4. bushing press-mounting bolt according to claim 1, is characterized in that: described afterbody flange is fixedly connected with nut.
5. bushing press-mounting bolt according to claim 1, is characterized in that: the center of each described ring flange all has the screwed hole that can match with screw rod bar portion screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520741300.5U CN204954744U (en) | 2015-09-24 | 2015-09-24 | Bush pressure equipment bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520741300.5U CN204954744U (en) | 2015-09-24 | 2015-09-24 | Bush pressure equipment bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204954744U true CN204954744U (en) | 2016-01-13 |
Family
ID=55049841
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520741300.5U Active CN204954744U (en) | 2015-09-24 | 2015-09-24 | Bush pressure equipment bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204954744U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105196241A (en) * | 2015-09-24 | 2015-12-30 | 南车南京浦镇车辆有限公司 | Bushing press-fit bolt and press-fit method thereof |
| CN108098672A (en) * | 2017-11-29 | 2018-06-01 | 中国航发沈阳黎明航空发动机有限责任公司 | A kind of engine tube axis extracting tool |
| CN108188979A (en) * | 2017-12-06 | 2018-06-22 | 北京动力机械研究所 | A kind of efficient erecting device of tooth form circle lock type studs |
-
2015
- 2015-09-24 CN CN201520741300.5U patent/CN204954744U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105196241A (en) * | 2015-09-24 | 2015-12-30 | 南车南京浦镇车辆有限公司 | Bushing press-fit bolt and press-fit method thereof |
| CN108098672A (en) * | 2017-11-29 | 2018-06-01 | 中国航发沈阳黎明航空发动机有限责任公司 | A kind of engine tube axis extracting tool |
| CN108098672B (en) * | 2017-11-29 | 2020-10-09 | 中国航发沈阳黎明航空发动机有限责任公司 | Engine hollow shaft dismounting tool |
| CN108188979A (en) * | 2017-12-06 | 2018-06-22 | 北京动力机械研究所 | A kind of efficient erecting device of tooth form circle lock type studs |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 210031 Nanjing province high tech Development Zone, Taishan Park, North Pearl Road, No. 68 Patentee after: CRRC NANJING PUZHEN CO., LTD. Address before: 210031 Nanjing province high tech Industrial Development Zone, Taishan Park, North Pearl Road, No. 68 Patentee before: CSR NANJING PUZHEN Vehicles Co., Ltd. |