CN202623972U - Main ratchet wheel of compensation device - Google Patents
Main ratchet wheel of compensation device Download PDFInfo
- Publication number
- CN202623972U CN202623972U CN 201220232502 CN201220232502U CN202623972U CN 202623972 U CN202623972 U CN 202623972U CN 201220232502 CN201220232502 CN 201220232502 CN 201220232502 U CN201220232502 U CN 201220232502U CN 202623972 U CN202623972 U CN 202623972U
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- Prior art keywords
- outer ring
- hole
- ratchet wheel
- spiral groove
- joint portion
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- Expired - Lifetime
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Abstract
The utility model relates to a main ratchet wheel of a compensation device and solves the problems that a mold cannot be split during steel mold low pressure casting. The yield is improved to over 90% from original 30%. The main ratchet wheel is composed of a spiral groove outer ring, elliptic spokes, smooth transition lacing holes, a boss combination part, outer ring gear teeth, a central bearing hole, a transmission recess, a bolt hole and shrinkage proof sinking recesses. The boss combination part is coaxially arranged inside the spiral groove outer ring, and at least three elliptic spokes are evenly arranged between the boss combination part and the spiral groove outer ring; outer ring gear teeth are coaxially arranged on two sides of the spiral groove outer ring, and the central bearing hole is arranged in the middle of the boss combination part; and shrinkage proof sinking recesses are arranged at corresponding positions of the elliptic spokes and the spiral groove outer ring, and at least one smooth transition lacing hole is arranged on one sides of the shrinkage proof sinking recesses. The main ratchet wheel is simple in structure and convenient to manufacture, process and change, suitable for large tension high-speed overhead contact system compensation device and capable of improving the production efficiency and product quality obviously, saving a large amount of energy and time and effectively reducing the production cost.
Description
Technical field
The utility model relates to ratchet, especially a kind of compensating device master ratchet wheel body.
Background technology
At present, China Express Railway is fast-developing, and the running velocity of railway line for passenger traffic train reaches 300-350km/H; So at a high speed the quality to the contact system line has proposed very high requirement, spring, summer, autumn and winter, scorching summer and freezing winter, can uniform maintenance it straight and stable; Ratchet compensating device plays effect of paramount importance, and ratchet compensating device is exactly in fact the tension compensator that contact system casts anchor, and is that catenary and contact wire keep the constant vitals of working tension when temperature Change; External ratchet compensating device comparative maturity, the employing tension pulley that domestic existing line is more also has compensating devices such as ratchet, spring, hydraulic pressure; But along with building of high-speed electric railway; Ratchet compensating device in the tunnel, the application of bridge etc. shows that more and more its preceence, the maximum characteristics of escapement are that ratchet and other blade wheel are one altogether, the one, have the broken string braking function; The 2nd, installing space is little more a lot of than aluminum alloy pulley compensating device; Railway tunnel, urban track traffic are located underground, station etc. owing to receive space constraint the aluminum alloy pulley compensating device to be installed, and change difficulty.And abroad ratchet compensating device also is difficult to be applied to China high ferro field that running velocity reaches 300-350km/H, and the problem that expensive is arranged, be difficult to supporting installation.
Yet ratchet body both domestic and external has integral type and assembled, no left and right spiral grooves on the ratchet wheel body of employing integral type or the structure; In-use performance is limited, or the gravitational casting mode that adopts sand mold or sand mold to combine with punching block, because the performance reason of foundry goods itself; The part that this foundry technique forms is difficult to the high speed compensating mechanism of contact net of hightension, causes domestic and international ratchet quality state to differ, and oeverall quality is low; High Performance ratchet body, what wherein difficulty was maximum is exactly the low pressure [die of megacanthopore wheel body, and part is complicated, require quality high; The as cast yield rate is low, and it is high-leveled and difficult following that tooling cost is occupied; Expended mass energy and time, production work efficient and product design are low, and the restriction China Express Railway is fast-developing, form the bottleneck of ratchet compensating device production development, are the insoluble for a long time technical barriers in this area.
In view of above-mentioned reason, existing ratchet compensating device need be innovated improvement.
The utility model content
The purpose of the utility model is in order to overcome deficiency of the prior art, a kind of compensating device master ratchet wheel body to be provided, and is simple and compact for structure, and production and processing, replacing are conveniently; The problem that can't divide mould when having solved the punching block low pressure [die, yield rate is brought up to more than 90% by original 30%; Be applicable to the high speed compensating mechanism of contact net of hightension; Obviously improve production work efficient and product design, practice thrift mass energy and time, effectively reduce production costs.
The utility model adopts following technical scheme in order to realize above-mentioned purpose: a kind of compensating device master ratchet wheel body is by spiral grooves outer ring, oval spoke; The rounding off eyelet hole, boss joint portion, the outer ring gear teeth, center bearing pilot bearing hole; Pass and carry recess, bolt hole, the heavy nest of anti-shrinkage porosite constitutes; The coaxial boss joint portion that is provided with in the spiral grooves outer ring is uniformly distributed with at least three oval spokes of setting between boss joint portion and the spiral grooves outer ring; The coaxial outer ring gear teeth that are provided with in both sides, spiral grooves outer ring, middle part, boss joint portion is provided with the center bearing pilot bearing hole.
The corresponding position is provided with the heavy nest of anti-shrinkage porosite respectively between oval spoke and the spiral grooves outer ring, and a side of the heavy nest of anti-shrinkage porosite is provided with at least one rounding off eyelet hole; Be uniformly distributed with at least three bolts hole of setting on the boss joint portion between oval spoke and the center bearing pilot bearing hole, be respectively provided to less a pair of biography between the adjacent bolt hole and carry recess.
The technological principle of the utility model is: baroque megacanthopore wheel body in the past, adopt common gravity casting a lot of defectives often to occur, inner shrinkage porosite, misrun or the like; The technical scheme of the utility model is that the ratchet wheel body design adopts the spoke design of split-type structural and approximate ellipsoidal to manufacture; Metal flow property when having improved the cast aluminium alloy casting greatly, the rounding off of spoke and whole wheel hub design simultaneously, unstressed concentrating; Good looking appearance; Exotic shape has been carried out optimal design after finite element analysis, obtain Rational structure intensity and strength at repeated alternation the most with the metallic material of minimum; Foundry technique adopts low pressure [die, realizes light, the high-intensity purpose of pts wt fully.
The beneficial effect of the utility model is: simple and compact for structure, reasonable in design, to produce easily, and dismounting is easy to maintenance, and is safe and reliable; Production and processing, replacing are conveniently; Be applicable to the high speed compensating mechanism of contact net of hightension; Obviously improve production work efficient and product design, practice thrift mass energy and time, effectively reduce production costs.
1. the Streamline Design of the oval spoke of radiation shape that adopts of the utility model; Metallo-flows very good when making low-pressure casting; Adopt the low pressure [die of all steel mould; The internal defect that has occurred easily when having avoided gravity-assist pouring, the problem that can't divide mould when having solved the punching block low pressure [die, yield rate is brought up to more than 90% by original 30%.
2. well-balanced, the stress dispersion of the utility model appearance looks elegant, stress equalization does not have the dead point, and part makes things convenient for machine up.
3. the utility model can adapt to various harsies environment such as spring, summer, autumn and winter, scorching summer and freezing winter adaptable across the contact system catenary of high-speed electric railway and the contact wire tension compensating that casts anchor.
4. the utility model superior performance, reasonable price, installation are easy to connect, safe and reliable, make the utility model that bigger development prospect arranged.
5. the utility model promotes China Express Railway fast-developing, has solved the insoluble for a long time technical barrier in this area; Satisfy market and user's demand.Invest lowly, be convenient to promote.
Description of drawings
Below in conjunction with accompanying drawing the utility model is described further:
Fig. 1 is the general assembly structural representation of the utility model;
Fig. 2 is the structural representation of facing of Fig. 1;
Among Fig. 1,2: spiral grooves outer ring 1, oval spoke 2, rounding off eyelet hole 3, boss joint portion 4, the outer ring gear teeth 5, center bearing pilot bearing hole 6 passes and carries recess 7, bolt hole 8, the heavy nest 9 of anti-shrinkage porosite.
The specific embodiment
Below in conjunction with the accompanying drawing and the specific embodiment the utility model is done further explain:
As shown in the figure, in the spiral grooves outer ring 1 the coaxial boss joint portion 4 that is provided with, and is uniformly distributed with at least three oval spokes 2 of setting between boss joint portion 4 and the spiral grooves outer ring 1; The coaxial outer ring gear teeth 5 that are provided with in 1 both sides, spiral grooves outer ring, 4 middle parts, boss joint portion are provided with center bearing pilot bearing hole 6.
The corresponding position is provided with the heavy nest 9 of anti-shrinkage porosite respectively between oval spoke 2 and the spiral grooves outer ring 1, and a side of the heavy nest 9 of anti-shrinkage porosite is provided with at least one rounding off eyelet hole 3; Be uniformly distributed with at least three bolts hole of setting 8 on the boss joint portion 4 between oval spoke 2 and the center bearing pilot bearing hole 6, be respectively provided to less a pair of biography between the adjacent bolt hole 8 and carry recess 7.
Claims (2)
1. compensating device master ratchet wheel body is by spiral grooves outer ring (1), oval spoke (2), and rounding off eyelet hole (3), boss joint portion (4), and the outer ring gear teeth (5), center bearing pilot bearing hole (6) pass and carry a recess (7), bolt hole (8), the heavy nest (9) of anti-shrinkage porosite constitutes; It is characterized in that: in spiral grooves outer ring (1) the coaxial boss joint portion (4) that is provided with, and is uniformly distributed with at least three oval spokes of setting (2) between boss joint portion (4) and spiral grooves outer ring (1); The coaxial outer ring gear teeth (5) that are provided with in both sides, spiral grooves outer ring (1), boss joint portion (4) middle part is provided with center bearing pilot bearing hole (6).
2. a kind of compensating device master ratchet wheel body according to claim 1; It is characterized in that: the corresponding position is provided with the heavy nest (9) of anti-shrinkage porosite respectively between oval spoke (2) and spiral grooves outer ring (1), and a side of the heavy nest (9) of anti-shrinkage porosite is provided with at least one rounding off eyelet hole (3); Be uniformly distributed with at least three bolts hole of setting (8) on the boss joint portion (4) between oval spoke (2) and center bearing pilot bearing hole (6), be respectively provided to less a pair of biography between the adjacent bolt hole (8) and carry recess (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220232502 CN202623972U (en) | 2012-05-21 | 2012-05-21 | Main ratchet wheel of compensation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220232502 CN202623972U (en) | 2012-05-21 | 2012-05-21 | Main ratchet wheel of compensation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202623972U true CN202623972U (en) | 2012-12-26 |
Family
ID=47377201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220232502 Expired - Lifetime CN202623972U (en) | 2012-05-21 | 2012-05-21 | Main ratchet wheel of compensation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202623972U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108328448A (en) * | 2018-03-05 | 2018-07-27 | 宁波元吉智能科技有限公司 | A kind of elevator governor of ratchet and rope sheave integral type |
-
2012
- 2012-05-21 CN CN 201220232502 patent/CN202623972U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108328448A (en) * | 2018-03-05 | 2018-07-27 | 宁波元吉智能科技有限公司 | A kind of elevator governor of ratchet and rope sheave integral type |
| CN108328448B (en) * | 2018-03-05 | 2024-05-10 | 西子弗兰斯电梯(广东)有限公司 | Ratchet and rope sheave integrated elevator speed limiter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121226 |