CN2567400Y - Hydraulic brake device for scraper - Google Patents
Hydraulic brake device for scraper Download PDFInfo
- Publication number
- CN2567400Y CN2567400Y CN 02269309 CN02269309U CN2567400Y CN 2567400 Y CN2567400 Y CN 2567400Y CN 02269309 CN02269309 CN 02269309 CN 02269309 U CN02269309 U CN 02269309U CN 2567400 Y CN2567400 Y CN 2567400Y
- Authority
- CN
- China
- Prior art keywords
- scraper
- hydraulic
- utility
- hydraulic brake
- brake disc
- Prior art date
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a hydraulic brake device for a scraper, which is composed of a transfer gear box (2) and a brake disc (3). The utility model is characterized in that the brake disc (3) is movably connected with a hydraulic brake cylinder (4); the hydraulic brake cylinder (4) is connected with one end of a hydraulic reversal valve (1) through an oil pipe (11); the other end of the hydraulic reversal valve (1) is connected with a supplement oil pump (10) and an oil box (9). Since the utility model adopts the hydraulic brake structural style, a scraper below a well works on an inclination channel when power failure accidents which are not generated by human occur, the scraper can be braked reliably for a long time. Glide downward is avoided and runaway accidents are prevented. The utility model has the advantages of simple structure and practicality.
Description
Affiliated technical field
The utility model relates to a kind of braking device, particularly the scraper hydraulic brake system.
Background technique
At present, lower leaf is gone up in known down-hole mining method existence connecting taxiway (ramp), so underground scraper when operation on ramp, needs reliable braking device.The former design of homemade 0.75 scraper has three kinds of braking methods: 1. stopping brake does not reach the braking purpose because the scraper humid environment of underground work causes the drag friction coefficient to reduce.2. emergency braking does not reach the braking purpose because pressure oil very little, makes the transfer pump not reach effect.3. this braking of service braking utilizes the neutral position of variable displacement pump, sealing major loop hydraulic fluid port, motor can not be rotated, the scraper of this time stops on ramp and is in 0 speed, and after stopping 10 seconds, scraper begins one moving one and stops cyclical movement, and moving began driving after 20 seconds, did not reach reliable braking purpose; More than three kinds of modes of braking all can not reach effective braking in following three kinds of situations, cause operation scraper generation driving on the underground ramp, 1., cause scraper to quit work when the electricity cable power failure of breaking down.2. when the power switch power failure of breaking down, cause scraper to quit work.3. when the supply network power failure of breaking down, cause scraper to quit work.
Summary of the invention
The purpose of this utility model will provide a kind of reliable hydraulic brake system exactly, and this hydraulic brake system can reliably be braked the scraper of operation on the ramp under three kinds of non-artificial power-off conditions.
The purpose of this utility model is achieved in that a kind of scraper hydraulic brake system, form by transfer gear box (2), brake disc (3), it is characterized in that described brake disc (3) flexibly connects hydraulic braking cylinder (4), hydraulic braking cylinder (4) connects hydraulicdirectional control valve (1) one end by oil pipe (11), and hydraulicdirectional control valve (1) the other end is connected with fuel tank (9) with slippage pump (10).
An optimum implementation of the present utility model is: hydraulic braking cylinder (4) is by the piston rod (7) that flexibly connects with brake disc (3), piston rod (7) the other end connects piston (6), piston (6) the other end connects spring (5), and spring (5) center is supported by spring supporting bar (8) and formed; Brake disc (3) is circular, every 90 degree an arc-shaped hole that plays braking action is arranged on its edge.The beneficial effects of the utility model are: owing to adopted the structural type of hydraulic braking, when non-artificial power outage takes place in down-hole shovel motivation operation on chute, can brake scraper for a long time reliably, avoid downslide, prevent runaway accident; It is simple and practical.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified, accompanying drawing is a mechanical schematic diagram of the present utility model.
Fig. 1 is a mechanical construction drawing of the present utility model.
Fig. 2 is Figure 1A-A sectional view.
Among the figure: 1, hydraulicdirectional control valve 2, transfer gear box 3, brake disc 4, hydraulic braking cylinder 5, return spring 6, piston 7, piston rod 8, spring supporting bar 9, fuel tank 10, slippage pump 11, oil pipe
Embodiment
Among the embodiment shown in the drawings, comprise return spring (5), piston (6), piston rod (7) and spring supporting bar (8) in the hydraulic braking cylinder (4), wherein piston rod (7) links to each other with piston (6) one ends, piston (6) the other end is fixedlyed connected with spring supporting bar (8) with spring (5), and spring (5) the other end is fixed in the capping of hydraulic braking cylinder (4).Piston (6), piston rod (7) and spring supporting bar (8) can move back and forth in oil hydraulic cylinder under the pressure of the pulling force of spring (5) and oil, brake disc (3) is circular, on its edge, an arc-shaped hole that plays braking action is arranged every 90 degree, hydraulic braking cylinder (4) has two oil pipes to be connected to oil sump tank (9) by oil pipe (1) and selector valve, and wherein the end of a pipe connects slippage pump (10).
The concrete working procedure of present embodiment is: scraper starts, and slippage pump (10) fuel feeding enters hydraulic braking cylinder (4) through hydraulicdirectional control valve (1) and oil pipe (11), and promotion piston (6) makes in piston rod (7) the retraction hydraulic braking cylinder (4) the braking releasing; Hydraulicdirectional control valve (1) commutation after non-artificial power failure takes place, pressure oil flows back to fuel tank (9) through oil pipe (11) and hydraulicdirectional control valve (1), the hydraulic braking cylinder release, return spring (5) promotes piston (6) ejects piston rod (7), penetrate in the arc-shaped hole on the brake disc (3) the shovel motor braking.
Claims (3)
1, a kind of scraper hydraulic brake system, form by transfer gear box (2), brake disc (3), it is characterized in that described brake disc (3) flexibly connects hydraulic braking cylinder (4), hydraulic braking cylinder (4) connects hydraulicdirectional control valve (1) one end by oil pipe (11), and hydraulicdirectional control valve (1) the other end is connected with fuel tank (9) with slippage pump (10).
2, scraper hydraulic brake system according to claim 1, it is characterized in that described hydraulic braking cylinder (4) is by the piston rod (7) that flexibly connects with brake disc (3), piston rod (7) the other end connects piston (6), piston (6) the other end connects spring (5), and spring (5) center is supported by spring supporting bar (8) and formed.
3, scraper hydraulic brake system according to claim 1 and 2 is characterized in that described brake disc (3) for circular, has an arc-shaped hole that plays braking action every 90 degree on its edge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02269309 CN2567400Y (en) | 2002-08-29 | 2002-08-29 | Hydraulic brake device for scraper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02269309 CN2567400Y (en) | 2002-08-29 | 2002-08-29 | Hydraulic brake device for scraper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2567400Y true CN2567400Y (en) | 2003-08-20 |
Family
ID=33734564
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02269309 Expired - Fee Related CN2567400Y (en) | 2002-08-29 | 2002-08-29 | Hydraulic brake device for scraper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2567400Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101255898B (en) * | 2008-04-12 | 2010-04-21 | 太原理工大学 | On-off synchronous control rail-hanging type brake |
| CN112901687A (en) * | 2019-11-26 | 2021-06-04 | 江苏新迈机械有限公司 | Winch spring cylinder with braking function, working method of winch spring cylinder and winch |
-
2002
- 2002-08-29 CN CN 02269309 patent/CN2567400Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101255898B (en) * | 2008-04-12 | 2010-04-21 | 太原理工大学 | On-off synchronous control rail-hanging type brake |
| CN112901687A (en) * | 2019-11-26 | 2021-06-04 | 江苏新迈机械有限公司 | Winch spring cylinder with braking function, working method of winch spring cylinder and winch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |