CN111059286A - Parking wheel cylinder of beach vehicle - Google Patents
Parking wheel cylinder of beach vehicle Download PDFInfo
- Publication number
- CN111059286A CN111059286A CN201911317227.8A CN201911317227A CN111059286A CN 111059286 A CN111059286 A CN 111059286A CN 201911317227 A CN201911317227 A CN 201911317227A CN 111059286 A CN111059286 A CN 111059286A
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- CN
- China
- Prior art keywords
- parking
- wheel cylinder
- main body
- end cover
- piston
- 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.)
- Pending
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
- F16H63/30—Constructional features of the final output mechanisms
- F16H63/34—Locking or disabling mechanisms
- F16H63/3416—Parking lock mechanisms or brakes in the transmission
- F16H63/345—Parking lock mechanisms or brakes in the transmission using friction brakes, e.g. a band brakes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/02—Braking members; Mounting thereof
- F16D65/04—Bands, shoes or pads; Pivots or supporting members therefor
- F16D65/092—Bands, shoes or pads; Pivots or supporting members therefor for axially-engaging brakes, e.g. disc brakes
- F16D65/095—Pivots or supporting members therefor
- F16D65/097—Resilient means interposed between pads and supporting members or other brake parts
- F16D65/0972—Resilient means interposed between pads and supporting members or other brake parts transmitting brake reaction force, e.g. elements interposed between torque support plate and pad
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/14—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
- F16D65/16—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake
- F16D65/18—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake adapted for drawing members together, e.g. for disc brakes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2121/00—Type of actuator operation force
- F16D2121/14—Mechanical
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2125/00—Components of actuators
- F16D2125/18—Mechanical mechanisms
- F16D2125/20—Mechanical mechanisms converting rotation to linear movement or vice versa
- F16D2125/34—Mechanical mechanisms converting rotation to linear movement or vice versa acting in the direction of the axis of rotation
- F16D2125/40—Screw-and-nut
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
The invention discloses a dune buggy parking wheel cylinder, which comprises a wheel cylinder shell and a parking end cover, wherein a wheel cylinder piston is further arranged in the wheel cylinder shell, one end of the wheel cylinder piston is provided with a shoe, the other end of the wheel cylinder piston is provided with a bulge, the dune buggy parking wheel cylinder further comprises a propelling device, the propelling device comprises a parking main body and an adjusting bolt, the front end of the parking main body extends into the parking end cover, the rear end of the parking main body is positioned outside the parking end cover and is fixedly connected with a parking rocker arm, the middle of the parking main body is provided with a threaded hole, the adjusting bolt is screwed and matched in the threaded hole, and one end of the adjusting bolt positioned inside the parking end cover is abutted against the bulge of the wheel cylinder piston; the outer side of the parking main body is provided with a fixed eccentric gland, the bottom surface of the fixed eccentric gland is provided with at least 3 ball sockets for placing steel balls, and the parking main body is provided with guide grooves corresponding to the steel balls. The cost can be better reduced, and the efficiency is improved.
Description
Technical Field
The invention relates to the technical field of brake slave cylinders, in particular to a parking slave cylinder of a dune buggy.
Background
A brake cylinder for a beach vehicle is a device having a function of parking brake or the like, and is a mechanical part for stopping a moving member in a machine. At present, a sand beach vehicle brake cylinder generally uses oil pressure to push a piston to realize parking braking.
Chinese patent CN206555332U discloses a brake cylinder for a beach vehicle, which is shown in fig. 1 of the specification, wherein an end cover guide sleeve adopts a pin shaft structure, a piston is arranged in a pump body, the head of the piston is provided with a protruding section, the protruding section extends out of a piston hole of the pump body, and the tail of the piston is provided with a shoe; the piston pushing device comprises a rotating pushing body and an adjusting screw rod, the rotating pushing body can move along the axial direction of the piston, the rocker arm is fixed with the rotating pushing body, an internal thread through hole is formed in the middle of the rotating pushing body, the adjusting screw rod is installed in the internal thread through hole of the rotating pushing body, and the end face of the adjusting screw rod is in contact with the end face of the protruding section of the piston. However, in the disclosed technical scheme, the guide sleeve and the pin shaft are riveted together, and the guide sleeve is deformed or even loosened under the action of overlarge stress, so that the clamping stagnation phenomenon can occur during parking. Moreover, the guide sleeve needs to be pressed into the end cover by a press machine during assembly, and the process is complex and unsafe. Moreover, when whole car assembly, the assembly direction is single, has the limitation, if needs reverse assembly then need make reverse helical structure again, so the utilization ratio of part is lower, can seriously influence production efficiency to be unfavorable for reducing the manufacturing cost of spare part.
In addition, there is a sand beach vehicle brake cylinder, which is shown in the attached figure 2 of the specification, and the end cover guide sleeve adopts a spiral structure, but the problems are also existed.
Disclosure of Invention
To the deficiency of the prior art, the technical problem to be solved by the present patent application is: how to provide a sandy beach car parking wheel cylinder that production efficiency is high, with low costs, spare part high-usage.
In order to achieve the purpose, the invention adopts the following technical scheme:
a parking wheel cylinder of a beach vehicle comprises a wheel cylinder shell and a parking end cover, wherein a wheel cylinder piston is further arranged in the wheel cylinder shell, one end of the wheel cylinder piston is provided with a shoe, the other end of the wheel cylinder piston is provided with a bulge, and the bulge extends into a piston hole of the wheel cylinder shell; the parking device comprises a parking end cover, a parking main body and an adjusting bolt, wherein the front end of the parking main body extends into the parking end cover, the rear end of the parking main body is positioned on the outer side of the parking end cover and is fixedly connected with the parking end cover, a threaded hole is formed in the middle of the parking main body, the adjusting bolt is screwed and matched in the threaded hole, one end of the adjusting bolt positioned in the parking end cover is abutted against the convex part of the sub-pump piston, a compression spring is sleeved on the outer side of the convex part of the sub-pump piston, and two ends of the compression spring are respectively abutted against the sub-pump shell and the parking main body; a fixed eccentric gland is mounted on the outer side of the parking main body and fixed relative to the parking end cover, at least 3 ball sockets are distributed on the bottom surface of the fixed eccentric gland, steel balls are placed in the ball sockets, and a guide groove is formed in the parking main body corresponding to the steel balls; and the parking rocker arm is also connected with an extension spring.
Like this, when parking, the parking cable pulling parking rocking arm, parking rocking arm extension spring, parking rocking arm rotate and drive the parking main part rotatory, extrude compression spring, and during the parking main part was rotatory, drive adjusting bolt along axial displacement, and then promoted the outward movement of wheel cylinder piston, wheel cylinder piston removal promotion shoe cliies the brake disc, realizes parking braking. When the parking body rotates, the steel ball rolls in the guide groove. After braking is finished, the parking cable is loosened, and the parking rocker arm and the parking body reset under the action of the compression spring and the extension spring, so that parking is released. Specifically, the piston of the cylinder drives the shoe plate to move in the prior art, and the extension spring is of the prior structure and is not described in detail. At least 3 ball sockets are uniformly distributed on the bottom surface of the fixed eccentric gland and used for placing steel balls. The parking main part bottom surface is gone up to correspond there is 3 at least guide ways, rotates when the parking rocking arm and drives the parking main part rotation, thereby the parking main part will follow its guide way rotation increase and fixed eccentric gland between the distance and move forward.
Furthermore, the fixed eccentric gland outwards protrudes and is provided with a slide block, and the parking end cover is provided with a positioning groove in sliding fit with the slide block. The fixed eccentric gland and the parking end cover are positioned through the positioning groove and cannot rotate, and the motion reliability is improved.
Furthermore, the slider is provided with 2 and sets up fixed eccentric gland opposite both sides. Better installation and positioning.
Furthermore, a sealing ring is arranged between the cylinder piston and the cylinder shell. Better sealing.
Further, a dust cover is installed outside the parking body. Better dust prevention.
Further, the diameter of the steel ball is 5.5 mm. Is convenient to use.
In conclusion, the parking brake device is composed of the parking main body, the steel ball and the fixed eccentric gland structure, so that the problem that parts deform under stress is solved, and larger parking brake force can be provided. During assembly, a press machine is not needed, the fixed eccentric gland can be directly installed in the end cover, the production efficiency is greatly improved, and the danger coefficient brought by the press machine is greatly reduced. The left side can be adorned when whole car assembly, also can adorn on the right side. Greatly improving the utilization rate of parts and effectively reducing the cost.
Description of the drawings:
fig. 1 is a schematic structural view of a brake cylinder of a dune buggy disclosed in the background art, wherein 100 is an outer shoe, 200 is an inner shoe, 300 is a cylinder housing, 400 is a pin, 500 is a parking body, 600 is an adjusting bolt, 700 is an extension spring, 800 is a parking rocker arm, 900 is a guide sleeve, 1000 is a parking end cap, and 1100 is a cylinder piston.
Fig. 2 is a schematic structural view of another brake slave cylinder of a dune buggy disclosed in the background art, wherein 101 is an outer shoe, 201 is an inner shoe, 301 is a slave cylinder housing, 401 is a guide sleeve, 501 is a parking main body, 601 is an adjusting bolt, 701 is a parking rocker arm, 801 is a parking end cover, and 901 is a slave cylinder piston.
Fig. 3 is a schematic structural diagram of a brake cylinder of a dune buggy disclosed by the invention.
Fig. 4 is an enlarged schematic view of the structure of the fixed eccentric gland and the steel ball in fig. 3.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 3 to 4, the brake cylinder of the dune buggy comprises a cylinder housing 3 and a parking end cover 11, wherein a cylinder piston 12 is further installed in the cylinder housing 3, a shoe 1 is installed at one end of the cylinder piston 12, and a protrusion is arranged at the other end of the cylinder piston 12 and extends into a piston hole cavity of the cylinder housing 3; the parking device comprises a parking rocker arm 9, a parking main body 5 and an adjusting bolt 7, wherein the front end of the parking main body 5 extends into a parking end cover 11, the rear end of the parking main body 5 is positioned on the outer side of the parking end cover 11 and fixedly connected with the parking rocker arm 9, a threaded hole is formed in the middle of the parking main body 5, the adjusting bolt 7 is screwed and matched in the threaded hole, one end of the adjusting bolt 7 positioned in the parking end cover 11 is abutted against a convex part of a sub-pump piston 12, a compression spring 4 is sleeved on the outer side of the convex part of the sub-pump piston 12, and two ends of the compression spring 4 are respectively abutted against the sub-pump shell 3 and the parking main body 5; a fixed eccentric gland 10 is installed on the outer side of the parking main body 5, the fixed eccentric gland 10 is fixed relative to the parking end cover 11, 3 ball sockets 14 are distributed on the bottom surface of the fixed eccentric gland 10, steel balls 6 are placed in the ball sockets, and a guide groove is formed in the parking main body 5 corresponding to the steel balls 6; and the parking rocker arm is also connected with an extension spring 8.
Like this, when parking, the parking cable pulling parking rocking arm, parking rocking arm extension spring, parking rocking arm rotate and drive the parking main part rotatory, extrude compression spring, and during the parking main part was rotatory, drive adjusting bolt along axial displacement, and then promoted the outward movement of wheel cylinder piston, wheel cylinder piston removal promotion shoe cliies the brake disc, realizes parking braking. When the parking body rotates, the steel ball rolls in the guide groove. After braking is finished, the parking cable is loosened, and the parking rocker arm and the parking body reset under the action of the compression spring and the extension spring, so that parking is released. Specifically, the piston of the cylinder drives the shoe plate to move in the prior art, and the extension spring is of the prior structure and is not described in detail. 3 ball sockets are uniformly distributed on the bottom surface of the fixed eccentric gland and used for placing steel balls. The parking main part bottom surface is gone up to correspond there are 3 guide slots, rotates when the parking rocking arm and drives the parking main part rotation, thereby the parking main part will follow its guide slot rotation increase and fixed eccentric gland between the distance and move forward.
In this embodiment, the fixed eccentric gland 10 is provided with a sliding block 15 protruding outwards, and the parking end cover 11 is provided with a positioning groove in sliding fit with the sliding block. The fixed eccentric gland and the parking end cover are positioned through the positioning groove and cannot rotate, and the motion reliability is improved.
In this embodiment, the number of the sliding blocks is 2, and the sliding blocks are disposed on two opposite sides of the fixed eccentric gland 10. Better installation and positioning.
In this embodiment, a seal ring 2 is disposed between the cylinder piston 12 and the cylinder housing 3. Better sealing.
In this embodiment, a dust cover 13 is attached to the exterior of the parking body 5. Better dust prevention.
In this embodiment, the diameter of the steel ball 6 is 5.5 mm. Is convenient to use.
The principle is as follows: when parking, the parking cable pulls the parking rocker arm, the parking rocker arm stretches the extension spring, the parking rocker arm rotates to drive the parking main body to rotate, the compression spring is extruded, the parking main body rotates to drive the adjusting bolt to move axially, then the cylinder piston is pushed to move outwards, the cylinder piston moves to push the shoe to clamp the brake disc, and parking braking is achieved. When the parking body rotates, the steel ball slides in the guide groove. After braking is finished, the parking cable is loosened, and the parking rocker arm and the parking body reset under the action of the compression spring and the extension spring, so that parking is released.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (6)
1. The parking wheel cylinder of the dune buggy is characterized by comprising a wheel cylinder shell and a parking end cover, wherein a wheel cylinder piston is further arranged in the wheel cylinder shell, a shoe plate is arranged at one end of the wheel cylinder piston, and a bulge is arranged at the other end of the wheel cylinder piston and extends into a piston hole cavity of the wheel cylinder shell; the parking device comprises a parking end cover, a parking main body and an adjusting bolt, wherein the front end of the parking main body extends into the parking end cover, the rear end of the parking main body is positioned on the outer side of the parking end cover and is fixedly connected with the parking end cover, a threaded hole is formed in the middle of the parking main body, the adjusting bolt is screwed and matched in the threaded hole, one end of the adjusting bolt positioned in the parking end cover is abutted against the convex part of the sub-pump piston, a compression spring is sleeved on the outer side of the convex part of the sub-pump piston, and two ends of the compression spring are respectively abutted against the sub-pump shell and the parking main body; the outer side of the parking main body is provided with a fixed eccentric gland, the fixed eccentric gland is fixed relative to the parking end cover, the bottom surface of the fixed eccentric gland is provided with at least 3 ball sockets in a distributed manner, steel balls are placed in the ball sockets, and the parking main body is provided with guide grooves corresponding to the steel balls.
2. The beach vehicle parking wheel cylinder of claim 1, wherein the fixed eccentric gland is provided with a sliding block in a protruding manner, and the parking end cover is provided with a positioning groove in sliding fit with the sliding block.
3. The beach vehicle parking cylinder of claim 1 wherein the slide blocks are provided in 2 numbers and are disposed on opposite sides of the fixed eccentric gland.
4. The beach vehicle parking wheel cylinder of claim 1, wherein a seal ring is disposed between the wheel cylinder piston and the wheel cylinder housing.
5. The beach vehicle parking wheel cylinder of claim 1, wherein a dust cover is mounted outside the parking vehicle main body.
6. The beach vehicle parking wheel cylinder of claim 1, wherein the steel ball is 5.5mm in diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911317227.8A CN111059286A (en) | 2019-12-19 | 2019-12-19 | Parking wheel cylinder of beach vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911317227.8A CN111059286A (en) | 2019-12-19 | 2019-12-19 | Parking wheel cylinder of beach vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111059286A true CN111059286A (en) | 2020-04-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911317227.8A Pending CN111059286A (en) | 2019-12-19 | 2019-12-19 | Parking wheel cylinder of beach vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111059286A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205715374U (en) * | 2016-04-27 | 2016-11-23 | 中国第一汽车股份有限公司 | A kind of caliper structure of band parking function |
| DE102015109541A1 (en) * | 2015-06-15 | 2016-12-15 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Disc brake for a commercial vehicle |
| CN206555332U (en) * | 2017-03-07 | 2017-10-13 | 重庆科朗机动车制动器有限公司 | Motorcycle brake wheel cylinder |
-
2019
- 2019-12-19 CN CN201911317227.8A patent/CN111059286A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102015109541A1 (en) * | 2015-06-15 | 2016-12-15 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Disc brake for a commercial vehicle |
| CN205715374U (en) * | 2016-04-27 | 2016-11-23 | 中国第一汽车股份有限公司 | A kind of caliper structure of band parking function |
| CN206555332U (en) * | 2017-03-07 | 2017-10-13 | 重庆科朗机动车制动器有限公司 | Motorcycle brake wheel cylinder |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200424 |
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| RJ01 | Rejection of invention patent application after publication |