CN2425128Y - Road roller propelling hydraulic mechanism with operation protector - Google Patents
Road roller propelling hydraulic mechanism with operation protector Download PDFInfo
- Publication number
- CN2425128Y CN2425128Y CN 00229863 CN00229863U CN2425128Y CN 2425128 Y CN2425128 Y CN 2425128Y CN 00229863 CN00229863 CN 00229863 CN 00229863 U CN00229863 U CN 00229863U CN 2425128 Y CN2425128 Y CN 2425128Y
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- CN
- China
- Prior art keywords
- pump
- valve
- walking
- brake
- oil
- 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
Links
- 230000001012 protector Effects 0.000 title abstract 2
- 230000001681 protective effect Effects 0.000 claims description 2
- 239000013589 supplement Substances 0.000 abstract 2
- 230000000694 effects Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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- Road Paving Machines (AREA)
Abstract
The utility model provides a walking hydraulic pressure mechanism of a road roller with an operation failure action protector, which comprises an engine, a walking pump and a braker, wherein, the walking pump is mainly composed of a pump, a walking oil supplement pump and a hand-operated servo valve. The utility model is characterized in that in the walking pump, a braking valve is arranged between the walking oil supplement pump and the hand-operated servo valve, an oil inlet of the valve is connected with an oil outlet of the drive pump, the oil outlet is connected with the braker, and simultaneously, the oil outlet is connected with the hand-operated servo valve.
Description
The utility model relates to the vibration hydraulic system of hydraulic-driven road roller.
The walking hydraulic mechanism of hydraulic-driven road roller mainly is made up of motor, traveling pump and brake.Traveling pump comprises driving pump that motor drives, walking slippage pump, manually raises the clothes valve; Brake comprises brake pump and hub reduction gear.When on-position, the spring braking sheet on the brake is held wheel tightly, and at this moment, if the clothes valve is manually raised in operator's misoperation operation, then Hydraulic Elements very easily damage, even cause the accident.
The purpose of this utility model provides a kind of road roller walking hydraulic mechanism that has operation misoperation protective device.
Its technical scheme is as follows: it comprises motor, traveling pump and brake, and traveling pump is mainly by driving pump, walking slippage pump.And manually raise and obey the valve formation.Its characteristics are: in traveling pump, promptly brake valve is set with manually raising clothes between the valve at the walking slippage pump, the oil-in of this valve links to each other with the driving pump oil-out, and oil-out links to each other with brake, and the while obeys valve and links to each other with manually raising.
When the road roller operate as normal, brake valve gets electric, and the pressure oil of walking slippage pump enters into brake by brake valve, the spring brake(-holder) block on the brake is strutted the road roller cruising.When the power supply that cuts off brake valve, spring makes the valve core reset of brake valve, the pressure oil that the walking slippage pump is supplied with brake is cut off, and the spring brake(-holder) block of brake is in the power transmission shaft locking of on-position with the road wheel side reducer under the effect of spring force, make road roller be in on-position.This moment is because the optimal design of hydraulic system, brake valve is placed slippage pump and manually raises between the clothes valve, so brake valve has also cut off slippage pump simultaneously and supplied with the pressure oil of manually raising the clothes valve, manually raises that to obey valve ineffective.Even this moment, operator's mistake was moved the handle of manually raising the clothes valve of traveling pump; because it is inoperative manually to raise the clothes valve; all the time be in the zero delivery state so drive hydraulic pump, road roller is in the nature inactive state, has protected vibration hydraulic system and brakes effectively.
Be illustrated below in conjunction with drawings and Examples:
Fig. 1 is a structural principle schematic diagram of the present utility model.
As shown in Figure 1, the utility model mainly is made up of motor 1, traveling pump 2 brakes 1.Traveling pump mainly by driving pump 6, walking slippage pump 3, brake valve 4, manually raise clothes valve 5 and constitute.Wherein, brake valve 4 walking slippage pump 3 with manually raise between the clothes valve 5, oil-in links to each other with walking slippage pump 3, oil-out links to each other with brake 1, the while obeys valve 5 and links to each other with manually raising.
As aforementioned, the utility model arranges brake valve dexterously for operation principle and advantage, Really become and can advance to exempt from because of the harm that brings of operation misoperation, through on probation, effect be splendid.
Claims (1)
1, a kind of road roller walking hydraulic mechanism that has operation misoperation protective device; it comprises motor, traveling pump and brake; traveling pump mainly by driving pump, the walking slippage pump and manually raise clothes valve constitute; it is characterized by: in traveling pump; promptly brake valve is set with manually raising to obey between the valve at the walking slippage pump; the oil-in of this valve links to each other with the driving pump oil-out, and oil-out links to each other with brake, simultaneously with manually raise the clothes valve and link to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00229863 CN2425128Y (en) | 2000-05-01 | 2000-05-01 | Road roller propelling hydraulic mechanism with operation protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00229863 CN2425128Y (en) | 2000-05-01 | 2000-05-01 | Road roller propelling hydraulic mechanism with operation protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2425128Y true CN2425128Y (en) | 2001-03-28 |
Family
ID=33593077
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00229863 Expired - Fee Related CN2425128Y (en) | 2000-05-01 | 2000-05-01 | Road roller propelling hydraulic mechanism with operation protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2425128Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102897159A (en) * | 2012-09-07 | 2013-01-30 | 徐州万邦道路工程装备服务股份公司 | Hydraulic brake system of spreading machine |
-
2000
- 2000-05-01 CN CN 00229863 patent/CN2425128Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102897159A (en) * | 2012-09-07 | 2013-01-30 | 徐州万邦道路工程装备服务股份公司 | Hydraulic brake system of spreading machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20010328 |