CN105196236A - Withdrawal ring for shaft end elastic pin of low-floor bogie - Google Patents
Withdrawal ring for shaft end elastic pin of low-floor bogie Download PDFInfo
- Publication number
- CN105196236A CN105196236A CN201510605688.0A CN201510605688A CN105196236A CN 105196236 A CN105196236 A CN 105196236A CN 201510605688 A CN201510605688 A CN 201510605688A CN 105196236 A CN105196236 A CN 105196236A
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- CN
- China
- Prior art keywords
- bolt
- ring body
- resilient key
- compact heap
- circular hole
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
Abstract
A withdrawal ring for a shaft end elastic pin of a low-floor bogie comprises a ring body and a bolt. A round hole is formed throughout the center of the ring body, a threaded hole parallel with the ring body is formed in the radial direction of the ring body, the bolt penetrates into the threaded hole, and the length of the part, extending into the round hole, of the bolt is adjusted by rotating and screwing a nut. The withdrawal ring is simple in structure, convenient to manufacture and excellent in use performance; after an opening of the elastic pin is pressed to be closed, the diameter of the elastic pin is reduced, the surface of the elastic pin can be automatically separated out of an elastic pin hole, then the elastic pin can be pulled out effortlessly and more easily, and operation is easier.
Description
Technical field
The present invention relates to low-floor bogie axle head resilient key to move back and unload ring, belong to resilient key withdrawal device technical field.
Background technology
Low-floor bogie comprises bogie frame and is arranged on the axletree below bogie frame, the two ends of axletree are respectively arranged with wheel, axletree extends to the outside of wheel, the two ends that car is taken out are referred to as axle head, described axle head is provided with brake disc, installing the process of brake disc at axle head is: first insert several resilient keys at brake disc towards a side surface of axle head, several resilient key circular arrangement, then by the mode of hydraulic pressure, resilient key is pressed onto in the reserved stub bore of end axial surface, connects axle head and brake disc by resilient key.When dismantling brake disc; by the mode of hydraulic pressure, brake disc is pushed from axle head; but resilient key can be stayed in axle head usually, the present instrument not being used for being extracted by resilient key specially, can only rely on the instruments such as operating personnel's pliers; hand-operated clamping; then firmly extract, withdrawal process is extremely required great effort, and operating efficiency is extremely low; firmly even can resilient key be pressed from both sides bad too greatly, bring very large puzzlement and a difficult problem to dismantlement work.
Summary of the invention
In order to solve above-mentioned Problems existing, the invention discloses a kind of low-floor bogie axle head resilient key and move back and unload ring, its concrete technical scheme is as follows:
Low-floor bogie axle head resilient key moves back and unloads ring, it is characterized in that comprising ring body and bolt, described ring body center is run through and is provided with circular hole, the radial direction of described ring body is provided with the screwed hole parallel with ring body, described bolt-through, in screwed hole, extend into length in circular hole by rotating the nut adjusting bolt turning bolt end.
Described circular hole surface is provided with towards the groove of ring body depression, screwed hole is through the center of groove, one end that described bolt is positioned at circular hole is provided with compact heap, described compact heap is consistent with the crooked radian of groove towards the crooked radian of groove one side surface, and described compact heap is consistent with the radian of circular hole towards the crooked radian of a side surface of circular hole.
Described compact heap can be stuck in recessed groove, and the thickness of compact heap is not more than the cup depth of recessed groove, and described compact heap is connected by a bearing, one end of described bearing is inserted into compact heap, the other end is inserted in bolt, and when bolt rotates, compact heap is stuck in translation in recessed groove.
The circular hole surface at described ring body center is through grinding process.
The circular hole surface at described ring body center is provided with skid-resistant pad.
The screw thread of described screwed hole and the screw thread of bolt are all through surface tempering process.
Described ring body selects No. 45 steel.
Operation principle of the present invention is:
The present invention in use, first rotate and turn nut and make compact heap be clamped in recessed groove, the present invention is set to resilient key surrounding, resilient key is arranged in circular hole, make the center of circle line at the opening place of resilient key mutually vertical with bolt place straight line, rotation turns nut, bolt is progressive to be moved in circular hole, compact heap is pressed to resilient key surface gradually, the rotation that continues to exert pressure turns nut, compact heap self can not rotate, by the effect of bearing, allow bolt be rotated the power turning advance and can promote compact heap advance, gradually the opening of resilient key is pressed onto closed, after the opening of resilient key is closed, resilient key departs from from the part of the elasticity pin-and-hole of axle head and the internal face of elasticity pin-and-hole, now, as long as simply the present invention and axle head place plane orthogonal are moved, resilient key just can be extracted from axle head like a cork.
The invention has the beneficial effects as follows:
Structure of the present invention is simple, easy to prepare, and the present invention can to good serviceability, by the opening of resilient key is pressed onto closed after, the diameter of resilient key diminishes, and the surface energy of resilient key automatically from the elasticity pin-and-hole inside axle head separately, only need be exerted oneself gently and resilient key can be extracted, operation is more simple, extracts resilient key more simple.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention,
Reference numerals list: 1-ring body, 2-skid-resistant pad, 3-compact heap, 4-screwed hole, 5-bolt, 6-nut, 7-recessed groove, 8-circular hole.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, illustrate the present invention further.Following detailed description of the invention should be understood only be not used in for illustration of the present invention and limit the scope of the invention.
Visible by reference to the accompanying drawings, this low-floor bogie axle head resilient key moves back and unloads ring, comprise ring body 1 and bolt 5, described ring body 1 center is run through and is provided with circular hole 8, the radial direction of described ring body 1 is provided with the screwed hole 4 parallel with ring body 1, described bolt 5 is applied in screwed hole 4, turns nut 6 adjusting bolt 5 extend into length in circular hole 8 by rotating.The present invention, rotation turns bolt 5, the length that bolt 5 extend into circular hole 8 is different, when using of the present invention, first ring body 1 is enclosed within resilient key surrounding, rotation turns bolt 5, the one end being arranged in the bolt 5 of circular hole 8 promotes resilient key distortion, and the opening of resilient key, under the pressure from bolt 5, slowly closes, after the opening of bolt 5 is closed, the diameter of resilient key diminishes, and resilient key can be separated with elasticity pin-and-hole automatically, applies very little power by giving ring body 1, just ring body 1 can be moved out elasticity pin-and-hole together with resilient key, realize extracting resilient key.
Described circular hole 8 surface is provided with the groove caved in towards ring body 1, screwed hole 4 is through the center of groove, one end that described bolt 5 is positioned at circular hole 8 is provided with compact heap 3, described compact heap 3 is consistent with the crooked radian of groove towards the crooked radian of groove one side surface, and described compact heap 3 is consistent with the radian of circular hole 8 towards the crooked radian of a side surface of circular hole 8.By arranging groove to compact heap 3 one memory spaces, before ring body 1 is enclosed within resilient key, compact heap 3 is placed in groove.
Described compact heap 3 can be stuck in recessed groove 7, and the thickness of compact heap 3 is not more than the cup depth of recessed groove 7, described compact heap 3 is connected by a bearing, one end of described bearing is inserted into compact heap 3, the other end is inserted in bolt 5, when bolt 5 rotates, compact heap 3 is stuck in translation in recessed groove 7.After ring body 1 is enclosed within resilient key surrounding, rotation turns nut 6, bolt 5 rotates and advances, blocked compact heap 3 by bearing effect with rearward recess to rotate, compact heap 3 can only under the pressure from bolt 5, straight ahead, gradually be pressed on resilient key, by the opening compresses of resilient key to closed, resilient key can be separated with elasticity pin-and-hole automatically, extracts laborsaving.
Circular hole 8 surface at described ring body 1 center is through grinding process.Circular hole 8 skin-friction coefficient after polishing is large, to increase between ring body 1 and resilient key under pressure, extracts in resilient key process, the frictional force of ring body 1 and resilient key.
Circular hole 8 surface at described ring body 1 center is provided with skid-resistant pad 2.Skid-resistant pad 2 plays and prevents in withdrawal process, and ring body 1 and resilient key depart from.
The screw thread of described screwed hole 4 and the screw thread of bolt 5 are all through surface tempering process.Screw thread after modifier treatment has stronger front degree and wilfulness, and can reach and be pressed onto the power that resilient key is deformed to closing any opening, screw thread can not burst apart or fracture.
Described ring body 1 selects No. 45 steel.No. 45 steel can realize compressing resilient key and close to opening, and the metal material self do not changed, has the intensity meeting practical purpose of the present invention.
Technological means disclosed in the present invention program is not limited only to the technological means disclosed in above-mentioned technological means, also comprises the technical scheme be made up of above technical characteristic.
With above-mentioned according to desirable embodiment of the present invention for enlightenment, by above-mentioned description, relevant staff in the scope not departing from this invention technological thought, can carry out various change and amendment completely.The technical scope of this invention is not limited to the content on description, must determine its technical scope according to right.
Claims (7)
1. low-floor bogie axle head resilient key moves back and unloads ring, it is characterized in that comprising ring body and bolt, described ring body center is run through and is provided with circular hole, the radial direction of described ring body is provided with the screwed hole parallel with ring body, described bolt-through, in screwed hole, extend into length in circular hole by rotating the nut adjusting bolt turning bolt end.
2. low-floor bogie axle head resilient key according to claim 1 moves back and unloads ring, it is characterized in that described circular hole surface is provided with towards the groove of ring body depression, screwed hole is through the center of groove, one end that described bolt is positioned at circular hole is provided with compact heap, described compact heap is consistent with the crooked radian of groove towards the crooked radian of groove one side surface, and described compact heap is consistent with the radian of circular hole towards the crooked radian of a side surface of circular hole.
3. low-floor bogie axle head resilient key according to claim 2 moves back and unloads ring, it is characterized in that described compact heap can be stuck in recessed groove, and the thickness of compact heap is not more than the cup depth of recessed groove, described compact heap is connected by a bearing, one end of described bearing is inserted into compact heap, the other end is inserted in bolt, and when bolt rotates, compact heap is stuck in translation in recessed groove.
4. low-floor bogie axle head resilient key according to claim 3 moves back and unloads ring, it is characterized in that the circular hole surface at described ring body center is through grinding process.
5. low-floor bogie axle head resilient key according to claim 3 moves back and unloads ring, it is characterized in that the circular hole surface at described ring body center is provided with skid-resistant pad.
6. the low-floor bogie axle head resilient key according to claim 4 or 5 moves back and unloads ring, it is characterized in that the screw thread of the screw thread of described screwed hole and bolt is all through surface tempering process.
7. low-floor bogie axle head resilient key according to claim 6 moves back and unloads ring, it is characterized in that described ring body selects No. 45 steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510605688.0A CN105196236B (en) | 2015-09-22 | 2015-09-22 | Low-floor bogie shaft end resilient key, which is moved back, unloads ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510605688.0A CN105196236B (en) | 2015-09-22 | 2015-09-22 | Low-floor bogie shaft end resilient key, which is moved back, unloads ring |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105196236A true CN105196236A (en) | 2015-12-30 |
| CN105196236B CN105196236B (en) | 2017-10-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510605688.0A Active CN105196236B (en) | 2015-09-22 | 2015-09-22 | Low-floor bogie shaft end resilient key, which is moved back, unloads ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105196236B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2566660B2 (en) * | 1990-03-29 | 1996-12-25 | キヤノン株式会社 | C-ring mounting device |
| US5933943A (en) * | 1997-07-21 | 1999-08-10 | Chou; Shu-Chun Yu | Pin leading device |
| US5953801A (en) * | 1996-10-15 | 1999-09-21 | K-Line Industries, Inc. | Snap ring removing tool |
| CN102357864A (en) * | 2011-10-20 | 2012-02-22 | 奇瑞汽车股份有限公司 | Ejector pin disassembling tool |
| CN202517253U (en) * | 2012-03-31 | 2012-11-07 | 南京依维柯汽车有限公司 | Elastic pin press-mounting device |
| CN203415698U (en) * | 2013-07-27 | 2014-01-29 | 国家电网公司 | Power transmission and transformation circuit wire connection device |
| CN204954734U (en) * | 2015-09-22 | 2016-01-13 | 南车南京浦镇车辆有限公司 | Low -floor bogie axle head spring pin withdrawal ring |
-
2015
- 2015-09-22 CN CN201510605688.0A patent/CN105196236B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2566660B2 (en) * | 1990-03-29 | 1996-12-25 | キヤノン株式会社 | C-ring mounting device |
| US5953801A (en) * | 1996-10-15 | 1999-09-21 | K-Line Industries, Inc. | Snap ring removing tool |
| US5933943A (en) * | 1997-07-21 | 1999-08-10 | Chou; Shu-Chun Yu | Pin leading device |
| CN102357864A (en) * | 2011-10-20 | 2012-02-22 | 奇瑞汽车股份有限公司 | Ejector pin disassembling tool |
| CN202517253U (en) * | 2012-03-31 | 2012-11-07 | 南京依维柯汽车有限公司 | Elastic pin press-mounting device |
| CN203415698U (en) * | 2013-07-27 | 2014-01-29 | 国家电网公司 | Power transmission and transformation circuit wire connection device |
| CN204954734U (en) * | 2015-09-22 | 2016-01-13 | 南车南京浦镇车辆有限公司 | Low -floor bogie axle head spring pin withdrawal ring |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105196236B (en) | 2017-10-20 |
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Address after: 210031 Nanjing province high tech Development Zone, Taishan Park North Pearl Road, No. 68 Applicant after: CRRC NANJING PUZHEN CO., LTD. Address before: 210031 Nanjing province high tech Industrial Development Zone, Taishan Park, North Pearl Road, No. 68 Applicant before: CSR NANJING PUZHEN Vehicles Co., Ltd. |
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