CN203172612U - Hydraulic brake master cylinder structure for tractor - Google Patents
Hydraulic brake master cylinder structure for tractor Download PDFInfo
- Publication number
- CN203172612U CN203172612U CN 201320012797 CN201320012797U CN203172612U CN 203172612 U CN203172612 U CN 203172612U CN 201320012797 CN201320012797 CN 201320012797 CN 201320012797 U CN201320012797 U CN 201320012797U CN 203172612 U CN203172612 U CN 203172612U
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- CN
- China
- Prior art keywords
- piston
- pump housing
- cylinder body
- steel ball
- master brake
- 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 - Lifetime
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- Transmission Of Braking Force In Braking Systems (AREA)
Abstract
The utility model relates to a hydraulic brake master cylinder structure for a tractor and belongs to the field of tractor brake. The hydraulic brake master cylinder structure comprises a cylinder body, a cylinder hole is formed in the cylinder body, a piston is arranged at the front end of the cylinder hole, the front end of the piston is exposed out of the cylinder hole, a plurality of sealing rings are sleeved at the rear end portion of the piston, a connection rod is arranged at the tail end of the piston, an oil inlet is arranged at the rear end of the cylinder body, a valve is positioned on the inner side of the oil inlet, an oil outlet is arranged on the upper side of the cylinder body, a steel ball screw is arranged on the lower side of the cylinder body, a steel ball is arranged between the steel ball screw and the cylinder body, and a dustproof cover is arranged at the front end of the cylinder body. By means of the technical scheme, the piston can slide flexibly, the dustproof cover is arranged on an exposed piston rod to effectively prevent water and mud, the oil inlet is sealed by valve sealing rings, the requirements for planeness of the bottom is not high, the oil inlet is easy to manufacture, brake can be achieved through one foot when temperature of a brake system increases, the hydraulic brake master cylinder structure is sealed by rubber sealing rings, and a gap between the piston and the cylinder hole of the cylinder body is small.
Description
Technical field
The utility model relates to the trac. brake field, in particular, relates to a kind of tractor hydraulic master brake cylinder.
Background technology
As everyone knows, at existing brake field, during braking, step on brake pedal, the piston reach; Close the oil inlet valve sealing ring, set up system pressure.
1, during operation, turn radius is little in the farmland for trac., pedal of individual operation, and needing can one side brake; When highway travels, two pedals of combined operation, the piston that exposes is stained with water and mud easily, causes getting rusty; Piston is also stuck easily.2, often leak no one side brake: be the rigidity sealing owing to meet the place in steel ball valve seat and the pump housing, very high to parts planeness and roughness requirement, very difficult control in the batch manufacturing.When 3, the brake system temperature raise, a pin can't brake.4, brake pedal force is big: because the power that the piston returning quickly needs is big, spring stiffness is big, needs special tool when assembling and maintenance.
Summary of the invention
At the deficiency that exists in the background technology, the purpose of this utility model is to provide a kind of piston that exposes that can prevent to get rusty; Piston guide can be not stuck, prevents the tractor hydraulic master brake cylinder structure of revealing.
For achieving the above object, the utility model provides following technical scheme: a kind of tractor hydraulic master brake cylinder structure, comprise the pump housing, be provided with the cylinder hole in the pump housing, the front end in cylinder hole is provided with piston, the leading section of piston exposes the cylinder hole, is set with several seal rings on the rearward end of piston, and the end of piston is provided with connecting rod; Rear end at the pump housing is provided with fuel feed hole, and the inboard of fuel feed hole is provided with valve; Upside at the pump housing is provided with oil outlet, is provided with the steel ball screw at the downside of the pump housing, is provided with steel ball between this steel ball screw and the pump housing; Front end at the pump housing is provided with dust boot.
Be set with two seal rings on the rearward end of described piston.
The material of described seal ring is elastomeric material.
The front of the described pump housing is along being provided with groove structure, and an end of this dust boot is connected with groove structure, the other end is connected with piston nose portion.
The position that described dust boot is connected with groove structure is bulge-structure, and bulge-structure is stuck in the groove structure.
Described dust boot is the hollow sleeve structure.
Described dust boot axial surface is ups and downs wavy shaped configuration vertically.
The utility model beneficial effect compared to existing technology is:
1, the utility model piston slides freely: the piston rod that exposes has increased dust boot, can effectively prevent entering of sealing and mud;
2, the utility model reliable operation, do not have and reveal: the fuel feed hole place adopts valve sealing ring, and is less demanding to planeness, easy to manufacture;
When 3, the utility model brake system temperature raise, a pin just can brake;
4, the utility model adopts the seal ring sealing, and piston and pump housing cylinder interporal lacuna are little.
Description of drawings
Fig. 1 is that the construction profile of trac. master brake cylinder structure described in the utility model is analysed and observe the figure of the portion of showing;
Fig. 2 is the A-A cross section cross-sectional schematic of the described total pump configuration of Fig. 1.
The number in the figure implication:
1, piston; 2, dust boot; 3, seal ring; 4, the pump housing; 5, connecting rod; 6, oil outlet; 7, valve; 8, fuel feed hole; 9, pistons end; 10, groove structure; 11, steel ball screw; 12, steel ball; 13, bulge-structure.
The specific embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present utility model is described in further detail.Following examples are used for explanation the utility model, but are not used for limiting scope of the present utility model.
As Fig. 1-shown in Figure 2, a kind of tractor hydraulic master brake cylinder structure comprises the pump housing 4, be provided with the cylinder hole in the pump housing 4, the front end in cylinder hole is provided with piston 1, and the leading section of piston 1 exposes the cylinder hole, be set with several seal rings 3 on the rearward end of piston 1, the end of piston 1 is provided with connecting rod 5; Be provided with fuel feed hole 8 in the rear end of the pump housing 4, the inboard of fuel feed hole 8 is provided with valve 7; Upside at the pump housing 4 is provided with oil outlet 6, is provided with steel ball screw 11 at the downside of the pump housing 4, is provided with steel ball 12 between this steel ball screw 11 and the pump housing 4; Front end at the pump housing 4 is provided with dust boot 2.
Further, be set with two seal rings 3 on the rearward end of described piston 1.
Further, the material of described seal ring 3 is elastomeric material.
Further, the front of the described pump housing 4 is along being provided with groove structure 10, and an end of this dust boot 2 is connected with groove structure 10, the other end is connected with piston 1 leading section.
Further, the position that described dust boot 2 is connected with groove structure 10 is bulge-structure 13, and bulge-structure 13 is stuck in the groove structure 10.
Further, described dust boot 2 is the hollow sleeve structure.
Further, described dust boot 2 axial surfaces are ups and downs wavy shaped configuration vertically.
In structure of the present utility model, the piston rod outside of exposing has increased dust boot 2, thereby can effectively prevent entering of sealing and mud, reaches to prevent from getting rusty, and guarantees the purpose that piston 1 slides freely.
Fuel feed hole 8 places adopt valve 7, and are less demanding to planeness, easy to manufacture, thereby reach reliable operation, leak free purpose.
When the brake system temperature raise, a pin just can brake.
Adopt seal ring 3 sealings of elastomeric material, piston 1 is little with the cylinder interporal lacuna.
The above only is preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model know-why; can also make some improvement and modification, these of above-mentioned hypothesis improve and modification also should be considered as protection domain of the present utility model.
Claims (7)
1. a tractor hydraulic master brake cylinder structure is characterized in that: comprise the pump housing, be provided with the cylinder hole in the pump housing, the front end in cylinder hole is provided with piston, the leading section of piston exposes the cylinder hole, is set with several seal rings on the rearward end of piston, and the end of piston is provided with connecting rod; Rear end at the pump housing is provided with fuel feed hole, and the inboard of fuel feed hole is provided with valve; Upside at the pump housing is provided with oil outlet, is provided with the steel ball screw at the downside of the pump housing, is provided with steel ball between this steel ball screw and the pump housing; Front end at the pump housing is provided with dust boot.
2. tractor hydraulic master brake cylinder structure according to claim 1 is characterized in that: be set with two seal rings on the rearward end of described piston.
3. tractor hydraulic master brake cylinder structure according to claim 2, it is characterized in that: the material of described seal ring is elastomeric material.
4. tractor hydraulic master brake cylinder structure according to claim 1 is characterized in that: the front of the described pump housing is along being provided with groove structure, and an end of this dust boot is connected with groove structure, the other end is connected with piston nose portion.
5. tractor hydraulic master brake cylinder structure according to claim 4, it is characterized in that: the position that described dust boot is connected with groove structure is bulge-structure, and bulge-structure is stuck in the groove structure.
6. tractor hydraulic master brake cylinder structure according to claim 5, it is characterized in that: described dust boot is the hollow sleeve structure.
7. tractor hydraulic master brake cylinder structure according to claim 6, it is characterized in that: described dust boot axial surface is ups and downs wavy shaped configuration vertically.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320012797 CN203172612U (en) | 2013-01-10 | 2013-01-10 | Hydraulic brake master cylinder structure for tractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320012797 CN203172612U (en) | 2013-01-10 | 2013-01-10 | Hydraulic brake master cylinder structure for tractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203172612U true CN203172612U (en) | 2013-09-04 |
Family
ID=49069355
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320012797 Expired - Lifetime CN203172612U (en) | 2013-01-10 | 2013-01-10 | Hydraulic brake master cylinder structure for tractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203172612U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104176029A (en) * | 2014-07-19 | 2014-12-03 | 芜湖恒坤汽车部件有限公司 | Brake pump provided with limit check hole |
-
2013
- 2013-01-10 CN CN 201320012797 patent/CN203172612U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104176029A (en) * | 2014-07-19 | 2014-12-03 | 芜湖恒坤汽车部件有限公司 | Brake pump provided with limit check hole |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230113 Address after: No. 67, Yongqing Road, Kanmen Street, Yuhuan City, Taizhou City, Zhejiang Province 317600 Patentee after: Liu Yezhi Address before: 317699 Guishan village, Yucheng street, Yuhuan County, Taizhou City, Zhejiang Province Patentee before: YUHUAN AOHENG MACHINERY CO.,LTD. |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130904 |
|
| CX01 | Expiry of patent term |