CN105015527A - Reliable forklift braking device - Google Patents
Reliable forklift braking device Download PDFInfo
- Publication number
- CN105015527A CN105015527A CN201510417952.8A CN201510417952A CN105015527A CN 105015527 A CN105015527 A CN 105015527A CN 201510417952 A CN201510417952 A CN 201510417952A CN 105015527 A CN105015527 A CN 105015527A
- Authority
- CN
- China
- Prior art keywords
- pump
- braking device
- hydraulic
- hydraulic cavities
- fork truck
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T11/00—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant
- B60T11/10—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant transmitting by fluid means, e.g. hydraulic
- B60T11/16—Master control, e.g. master cylinders
- B60T11/20—Tandem, side-by-side, or other multiple master cylinder units
- B60T11/203—Side-by-side configuration
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
The invention provides a reliable forklift braking device. The reliable forklift braking device comprises a double pump, wherein the double pump consists of two braking pumps and comprises a double pump body and two hydraulic cavities, and each of the hydraulic cavities comprises a hydraulic piston assembly and a pushing rod assembly; one balanced one-way valve is arranged on one side of each of the hydraulic cavities, the balanced one-way valve comprises steel balls and springs, the directions of the applied force of the springs are from outside to inside of the hydraulic cavities, and the steel balls are blocked in taper holes in the side wall of the double pump body; a lathy connecting hole is formed between the two balanced one-way valves, and two ends of the connecting hole are communicated with a space in the opening side of each of the balanced one-way valves. When one cavity is leaked or damaged, the steel balls cannot be jacked, so that two completely isolated cavities are formed, namely that when one loop is damaged, the independent normal operation of the other loop is not influenced
Description
Technical field
The present invention relates to a kind of failure-free fork truck braking device, belong to field of mechanical technique.
Background technology
The hydraulic oil that existing fork truck brake pump produces supplies each self-loop, occurs that the oil pressure of left and right drg is different, the phenomenon such as occur braking deviation, dawdle.
Summary of the invention
The invention provides a kind of failure-free fork truck braking device derricking gear, the above present situation can be overcome.
For solving above technical matters, the invention provides following technical scheme: a kind of failure-free fork truck braking device, fork truck comprises two hydraulic brake circuits, each described hydraulic brake circuit is equipped with a brake pump, comprise the twin pump be made up of two brake pumps, twin pump comprises integrated two pump (1) and two hydraulic cavities, and each hydraulic cavities includes hydraulic piston assembly (4) and push rod assembly (10); The side of two hydraulic cavities is equipped with a balance check valve, described balance check valve comprises steel ball (5) and spring (6), the force direction of spring (6) is from hydraulic cavities from outside to inside, by steel ball (5) shutoff on the taper hole of integrated two pump (1) sidewall, between two balance check valves, be provided with elongated connecting bore (11), described connecting bore (11) two ends are communicated with the space of the open side of described balance check valve respectively.
Further, the oil inlet of described integrated two pump (1) is provided with in line check valve (2).
Further, in the oil pocket of described oil inlet, pull back spring (3) is established.
Further, in the working oil chamber of described integrated two pump (1), seal ring (8) is established.
This failure-free fork truck braking device derricking gear that the present invention relates to, can realize the above.
Accompanying drawing explanation
Fig. 1 is according to front elevation of the present invention;
Fig. 2 is according to section drawing of the present invention.
Detailed description of the invention
A kind of failure-free fork truck braking device, fork truck comprises two hydraulic brake circuits, each described hydraulic brake circuit is equipped with a brake pump, comprise the twin pump be made up of two brake pumps, twin pump comprises integrated two pump 1 and two hydraulic cavities, and each hydraulic cavities includes hydraulic piston assembly 4 and push rod assembly 10; The side of two hydraulic cavities is equipped with a balance check valve, described balance check valve comprises steel ball 5 and spring 6, the force direction of spring 6 is from hydraulic cavities from outside to inside, by steel ball 5 shutoff on the taper hole of integrated two pump 1 sidewall, between two balance check valves, be provided with elongated connecting bore 11, the aperture processed adopts connecting bore to block 12 shutoff.Described connecting bore 11 two ends are communicated with the space of the open side of described balance check valve respectively.
The oil inlet of described integrated two pump 1 is provided with in line check valve 2.
Pull back spring 3 is established in the oil pocket of described oil inlet.
Seal ring 8 is established in the working oil chamber of described integrated two pump 1.
During braking, push rod assembly 10 promotes hydraulic piston assembly 4 and moves, and makes hydraulic cavities produce hydraulic pressure, and exports from oil outlet; Meanwhile, hydraulic oil promotes steel ball 5 and moves up (two chambeies are consistent), and chamber, left and right two is completely through, and the brake-pressure of output is completely equal.If when a chamber is leaked or damaged, steel ball 5 by jack-up, can not form two completely isolated chambeies, and namely a loop is damaged, and not affect the independent normal work in another loop.
Claims (4)
1. a failure-free fork truck braking device, fork truck comprises two hydraulic brake circuits, each described hydraulic brake circuit is equipped with a brake pump, it is characterized in that: comprise the twin pump be made up of two brake pumps, twin pump comprises integrated two pump (1) and two hydraulic cavities, and each hydraulic cavities includes hydraulic piston assembly (4) and push rod assembly (10); The side of two hydraulic cavities is equipped with a balance check valve, described balance check valve comprises steel ball (5) and spring (6), the force direction of spring (6) is from hydraulic cavities from outside to inside, by steel ball (5) shutoff on the taper hole of integrated two pump (1) sidewall, between two balance check valves, be provided with elongated connecting bore (11), described connecting bore (11) two ends are communicated with the space of the open side of described balance check valve respectively.
2. according to failure-free fork truck braking device according to claim 1, it is characterized in that: the oil inlet of described integrated two pump (1) is provided with in line check valve (2).
3. according to failure-free fork truck braking device according to claim 1, it is characterized in that: in the oil pocket of described oil inlet, establish pull back spring (3).
4. according to failure-free fork truck braking device according to claim 1, it is characterized in that: in the working oil chamber of described integrated two pump (1), establish seal ring (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510417952.8A CN105015527A (en) | 2015-07-16 | 2015-07-16 | Reliable forklift braking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510417952.8A CN105015527A (en) | 2015-07-16 | 2015-07-16 | Reliable forklift braking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105015527A true CN105015527A (en) | 2015-11-04 |
Family
ID=54405939
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510417952.8A Pending CN105015527A (en) | 2015-07-16 | 2015-07-16 | Reliable forklift braking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105015527A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2880612Y (en) * | 2005-12-19 | 2007-03-21 | 玉环凯凌集团有限公司 | Hydraulic balance device of brake pump |
| CN103057540A (en) * | 2012-12-28 | 2013-04-24 | 芜湖盛力科技股份有限公司 | Forklift and agricultural mechanical brake pumps |
| US20130175852A1 (en) * | 2010-09-16 | 2013-07-11 | Vhit S.P.A. | Hydraulic device for controlling braking in vehicles with two braking pedals |
| CN203094046U (en) * | 2012-12-28 | 2013-07-31 | 芜湖盛力科技股份有限公司 | Forklift and agricultural machinery brake pumps |
-
2015
- 2015-07-16 CN CN201510417952.8A patent/CN105015527A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2880612Y (en) * | 2005-12-19 | 2007-03-21 | 玉环凯凌集团有限公司 | Hydraulic balance device of brake pump |
| US20130175852A1 (en) * | 2010-09-16 | 2013-07-11 | Vhit S.P.A. | Hydraulic device for controlling braking in vehicles with two braking pedals |
| CN103057540A (en) * | 2012-12-28 | 2013-04-24 | 芜湖盛力科技股份有限公司 | Forklift and agricultural mechanical brake pumps |
| CN203094046U (en) * | 2012-12-28 | 2013-07-31 | 芜湖盛力科技股份有限公司 | Forklift and agricultural machinery brake pumps |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: Liu Dong New District of Liuzhou city the Guangxi Zhuang Autonomous Region 545000 double Renlu No. 10 Guantang R & D center 2 Building No. 705 (Liu Zhougao and Secretary of Commerce Co. Ltd. hosted) Applicant after: LIUZHOU LIUPIN TECHNOLOGY CO., LTD. Address before: No. 16 Golden Road Liunan District of Liuzhou city in the Guangxi Zhuang Autonomous Region Hui Tan 545000 Applicant before: LIUZHOU LIUPIN TECHNOLOGY CO., LTD. |
|
| CB02 | Change of applicant information | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151104 |
|
| RJ01 | Rejection of invention patent application after publication |