CN102029990A - Braking master cylinder for engineering machinery - Google Patents
Braking master cylinder for engineering machinery Download PDFInfo
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- CN102029990A CN102029990A CN 201010571002 CN201010571002A CN102029990A CN 102029990 A CN102029990 A CN 102029990A CN 201010571002 CN201010571002 CN 201010571002 CN 201010571002 A CN201010571002 A CN 201010571002A CN 102029990 A CN102029990 A CN 102029990A
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- oil
- assembly
- cylinder
- oil outlet
- braking
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Abstract
The invention discloses a braking master cylinder for engineering machinery. The cylinder comprises a cylinder body (14), a piston assembly (21), a drum-shaped spring (17), a push rod fork assembly (24) and an oil storage cup assembly (19), wherein the oil outlet (15) of the cylinder body (14) is connected with the oil inlet of a brake piston oil cylinder; and a check valve assembly (16) is arranged at a position, at the oil outlet, of the cavity of the cylinder body (14) and prevents oil liquid from flowing from the oil outlet (15) into the cavity of the cylinder body (14). Due to the adoption of the technical scheme, the reliability of a braking system is enhanced, a master cylinder has residual pressure and braking sensitivity is enhanced; cost is lowered and appearance quality is enhanced, so that the performance of a product is enhanced and the service life of the product is prolonged; and the surface of an oil storage cup is provided with a transparent braking fluid filling mark, so that a user is reminded of filling braking fluid.
Description
Technical field
The invention belongs to the technical field of construction machinery and equipment, relate to the brake system of fork truck, more particularly, the present invention relates to a kind of construction machinery and equipment master brake cylinder.
Background technology
Illustrated in figures 1 and 2 as in this Figure of description, construction machinery and equipment of the prior art is made of push rod fork 1, nut 2, push rod 3, dust boot 4, elastic spring 5, pad 6, cylinder body 7, fuel inlet fitting 8, pad 9, locating dowel pin 10, piston assembly 11, seal ring 12, pull back spring 13 etc. with master brake cylinder.
Existing master brake cylinder lubricating cup adopts oil pipe to connect, and oil outlet does not have the boiler check valve function, inner rubber part material out of reach operating needs, and master cylinder is stuck not return easily, influences the service life of the safety performance and the brake pump assembly of brake system.
Summary of the invention
Problem to be solved by this invention provides a kind of construction machinery and equipment master brake cylinder, its objective is the reliability that improves brake system.
To achieve these goals, the technical scheme taked of the present invention is:
Construction machinery and equipment master brake cylinder provided by the present invention, comprise the pump housing, piston assembly, barrel-shaped spring, push rod fork assembly and oil storage cup assembly, the oil outlet of the described pump housing is connected with the oil inlet of brake plunger oil cylinder, the position that is positioned at oil outlet at described pump housing inner chamber, be provided with the boiler check valve assembly, it stops the fluid flow direction is to the endoceliac direction of pump from oil outlet.
Described boiler check valve assembly is located at the end of barrel-shaped spring, and the other end of described barrel-shaped spring contacts with described piston assembly.
The housing of described oil storage cup assembly adopts transparent engineering plastics, and its outside face is provided with the scale mark that adds the braking liquid electrolyte level.
The present invention adopts technique scheme, improves the reliability of brake system, makes master cylinder that residual pressure be arranged, and improves the sensitieness of braking; Cost-cutting improves presentation quality, thereby improves the performance and the service life of product; The oil storage cup appearance is provided with and adds the braking liquid clear mark, can remind the user to add braking liquid..
Description of drawings
Below expressed content of each width of cloth accompanying drawing of this specification sheets and the mark among the figure are made brief description:
Fig. 1 is the described prior art constructions scheme drawing of this specification sheets background technology part;
Fig. 2 looks scheme drawing for the right side of structure shown in Figure 1;
Fig. 3 is a structural representation of the present invention;
Fig. 4 looks scheme drawing for the right side of structure shown in Figure 3.
Be labeled as among the figure:
1, push rod fork, 2, nut, 3, push rod, 4, dust boot, 5, elastic spring, 6, pad, 7, cylinder body, 8, fuel inlet fitting, 9, pad, 10, locating dowel pin, 11, piston assembly, 12, seal ring, 13, pull back spring, 14, the pump housing, 15, oil outlet, 16, the boiler check valve assembly, 17, barrel-shaped spring, 18, O-ring seals, 19, the oil storage cup assembly, 20, spring perch, 21, piston assembly, 22, the hole back-up ring, 23, dust boot, 24, push rod fork assembly.
The specific embodiment
Contrast accompanying drawing below, by description to embodiment, to effect and principle of work, the manufacturing process of the mutual alignment between the shape of the specific embodiment of the present invention such as related each member, structure, the each several part and annexation, each several part and manipulate method etc., be described in further detail, inventive concept of the present invention, technical scheme had more complete, accurate and deep understanding to help those skilled in the art.
The of the present invention structure expressed as Fig. 3, Fig. 4, be a kind of construction machinery and equipment master brake cylinder, comprise the pump housing 14, piston assembly 21, barrel-shaped spring 17, push rod fork assembly 24 and oil storage cup assembly 19, the oil outlet 15 of the described pump housing 14 is connected with the oil inlet of brake plunger oil cylinder.
Between the oil storage cup assembly 19 and the pump housing 14, adopt O-ring seals 18 to seal.In the hole of an end of the pump housing 14, establish the hole with back-up ring 22, limited piston assembly 21 skids off from the chamber of the pump housing 14.And at this end, the dust hood 23 of setting up defences plays preventing that dust from entering the interior effect of oil pocket of the pump housing 14.
In order to solve the problem that exists at the described present known technology of this specification sheets background technology part and to overcome its defective, realize the goal of the invention of the reliability of raising brake system, the technical scheme that the present invention takes is:
Construction machinery and equipment master brake cylinder provided by the present invention, the position that is positioned at oil outlet at the described pump housing 14 inner chambers is provided with boiler check valve assembly 16, and it stops the fluid flow direction is from the direction of oil outlet 15 in the pump housing 14 chambeies.
The present invention carries out Transform Type design and update to structure of the prior art, and the inner check valve that increases of master cylinder makes master cylinder that residual pressure be arranged, and improves the sensitieness of braking.The inner rubber part adopts new material, and the improvement of Rubber Parts can improve product in-use performance and service life, makes customer satisfaction; Cost-cutting improves performance, improves presentation quality, thereby improves the performance and the service life of product.
Principle of work of the present invention::
After master cylinder oil storage cup assembly 19 is added to the braking liquid of specified amount, bleed off the air in the master cylinder, then by external influence power on push rod, piston assembly 21 moves forward and produces pressure to brake cylinder, brakes thereby produce.When stick force discharged, braking liquid returned oil storage cup assembly 19.
Boiler check valve assembly 16 of the present invention is located at the end of barrel-shaped spring 17, and the other end of described barrel-shaped spring 17 contacts with described piston assembly 21.Barrel-shaped spring 17 is installed in the piston assembly 21 by spring perch 20.
The housing of oil storage cup assembly 19 of the present invention adopts transparent engineering plastics, and its outside face is provided with the scale mark that adds the braking liquid electrolyte level.
The housing of oil storage cup assembly 19 adopts engineering plastics, appearance looks elegant, and outside face has the braking liquid of adding clear mark, can remind the user to add braking liquid..
In conjunction with the accompanying drawings the present invention has been carried out exemplary description above; obviously specific implementation of the present invention is not subjected to the restriction of aforesaid way; as long as adopted the improvement of the various unsubstantialities that method of the present invention design and technical scheme carry out; or design of the present invention and technical scheme are directly applied to other occasion without improving, all within protection scope of the present invention.
Claims (3)
1. construction machinery and equipment master brake cylinder, comprise the pump housing (14), piston assembly (21), barrel-shaped spring (17), push rod fork assembly (24) and oil storage cup assembly (19), the oil outlet (15) of the described pump housing (14) is connected with the oil inlet of brake plunger oil cylinder, it is characterized in that: in the position that is positioned at oil outlet of the described pump housing (14) inner chamber, be provided with boiler check valve assembly (16), it stops the fluid flow direction is from the direction of oil outlet (15) in the pump housing (14) chamber.
2. according to the described construction machinery and equipment master brake cylinder of claim 1, it is characterized in that: described boiler check valve assembly (16) is located at the end of barrel-shaped spring (17), and the other end of described barrel-shaped spring (17) contacts with described piston assembly (21).
3. according to the described construction machinery and equipment master brake cylinder of claim 1, it is characterized in that: the housing of described oil storage cup assembly (19) adopts transparent engineering plastics, and its outside face is provided with the scale mark that adds the braking liquid electrolyte level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010571002 CN102029990A (en) | 2010-12-02 | 2010-12-02 | Braking master cylinder for engineering machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010571002 CN102029990A (en) | 2010-12-02 | 2010-12-02 | Braking master cylinder for engineering machinery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102029990A true CN102029990A (en) | 2011-04-27 |
Family
ID=43883598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010571002 Pending CN102029990A (en) | 2010-12-02 | 2010-12-02 | Braking master cylinder for engineering machinery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102029990A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102506103A (en) * | 2011-10-27 | 2012-06-20 | 芜湖众发汽车制动系统有限公司 | Braking main cylinder provided with oil cup assembly, operating rod assembly and center valve |
| CN107575525A (en) * | 2017-10-18 | 2018-01-12 | 苏州西捷克缓冲科技有限公司 | Applied to the oil buffer under air pressure environment |
| CN111365384A (en) * | 2020-03-27 | 2020-07-03 | 桂林电子科技大学 | Truck braking system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2708032Y (en) * | 2004-05-20 | 2005-07-06 | 太原重型机械学院 | Double liquid power converter of brake system |
| CN2841287Y (en) * | 2005-07-27 | 2006-11-29 | 卓瑞荣 | Visual oil-storage bail cutting machine |
| CN201486791U (en) * | 2009-05-11 | 2010-05-26 | 芜湖盛力制动有限责任公司 | Air booster pump for vehicle braking |
| CN201626392U (en) * | 2010-02-09 | 2010-11-10 | 芜湖稳乐制动系统有限公司 | Brake master pump structure capable of preventing backflow |
| CN201923116U (en) * | 2010-12-02 | 2011-08-10 | 芜湖盛力制动有限责任公司 | Brake master pump for engineering machinery |
-
2010
- 2010-12-02 CN CN 201010571002 patent/CN102029990A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2708032Y (en) * | 2004-05-20 | 2005-07-06 | 太原重型机械学院 | Double liquid power converter of brake system |
| CN2841287Y (en) * | 2005-07-27 | 2006-11-29 | 卓瑞荣 | Visual oil-storage bail cutting machine |
| CN201486791U (en) * | 2009-05-11 | 2010-05-26 | 芜湖盛力制动有限责任公司 | Air booster pump for vehicle braking |
| CN201626392U (en) * | 2010-02-09 | 2010-11-10 | 芜湖稳乐制动系统有限公司 | Brake master pump structure capable of preventing backflow |
| CN201923116U (en) * | 2010-12-02 | 2011-08-10 | 芜湖盛力制动有限责任公司 | Brake master pump for engineering machinery |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102506103A (en) * | 2011-10-27 | 2012-06-20 | 芜湖众发汽车制动系统有限公司 | Braking main cylinder provided with oil cup assembly, operating rod assembly and center valve |
| CN107575525A (en) * | 2017-10-18 | 2018-01-12 | 苏州西捷克缓冲科技有限公司 | Applied to the oil buffer under air pressure environment |
| CN111365384A (en) * | 2020-03-27 | 2020-07-03 | 桂林电子科技大学 | Truck braking system |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20110427 |