CN204296696U - A kind of full-hydraulic power brake system of forklift - Google Patents
A kind of full-hydraulic power brake system of forklift Download PDFInfo
- Publication number
- CN204296696U CN204296696U CN201420669205.4U CN201420669205U CN204296696U CN 204296696 U CN204296696 U CN 204296696U CN 201420669205 U CN201420669205 U CN 201420669205U CN 204296696 U CN204296696 U CN 204296696U
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- brake
- oil
- pipe
- pressurization
- fuel tank
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Abstract
The utility model discloses a kind of full-hydraulic power brake system of forklift, comprise checking cylinder, brake valve, accumulator, fuel tank and oil pump; Described checking cylinder is provided with brake pipe, and the described brake pipe other end connects described fuel tank after described brake valve; Described oil pump oil inlet end connects described fuel tank, described oil pump oil outlet end is provided with pressurization oil pipe, and described pressurization oil pipe one end connects described oil pump, the described pressurization oil pipe other end is provided with the first pressurization arm in parallel and the second pressurization arm, described first pressurization arm connects the oil inlet end of described accumulator, and described second pressurization arm connects described fuel tank after described brake valve; The oil outlet end of described accumulator is provided with backflow oil pipe in parallel and brake hard oil pipe, and described backflow oil pipe connects described fuel tank, and described brake hard oil pipe connects described brake valve.To solve the drawback that traditional power brakes turns to fuel feeding to be disturbed, improve fork truck car load safety and reliability in use.
Description
Technical field
The utility model relates to a kind of full-hydraulic power brake system of forklift, belongs to fork truck manufacturing technology field.
Background technology
Brakes is one of critical component of vehicle, and the quality of matched design directly affects the driving manipulation security of vehicle.In the prior art, the breaking force of little tonnage fork car brakes is completely from pedal force, and the non-muscular energy braking system be applied to compared with large-tonnage fork truck, its breaking force then main hydraulic coupling exported from gear pump, pedal force is just as a kind of control source.The hydraulic oil that full power hydraulic brake system utilizes gear pump to produce acts on brake cylinder, produces brake force, its have system stability, reliable, be quick on the draw, advantage easy to maintenance.Though how large, tonnage counterbalanced lift truck has adopted full hydraulic power brake system at present, mostly still there is the drawback turning to fuel feeding to be disturbed, awaited further solution.
Utility model content
The utility model for the deficiency that prior art exists, provides a kind of full-hydraulic power brake system of forklift just, to solve the drawback that traditional power brakes turns to fuel feeding to be disturbed, improves fork truck car load safety and reliability in use.
For solving the problem, technical solution adopted in the utility model is as follows:
A kind of full-hydraulic power brake system of forklift, comprising: checking cylinder, brake valve, accumulator, fuel tank and oil pump;
Described checking cylinder is provided with brake pipe, and described brake pipe one end connects described checking cylinder, and the described brake pipe other end connects described fuel tank after described brake valve;
Described oil pump oil inlet end connects described fuel tank, described oil pump oil outlet end is provided with pressurization oil pipe, and described pressurization oil pipe one end connects described oil pump, the described pressurization oil pipe other end is provided with the first pressurization arm in parallel and the second pressurization arm, described first pressurization arm connects the oil inlet end of described accumulator, and described second pressurization arm connects described fuel tank after described brake valve;
The oil outlet end of described accumulator is provided with backflow oil pipe in parallel and brake hard oil pipe, and described backflow oil pipe connects described fuel tank, and described brake hard oil pipe connects described brake valve.
As the improvement of technique scheme, described accumulator is provided with low pressure warning switch, described backflow oil pipe is provided with emergency stop switch.
As the improvement of technique scheme, described brake pipe is also provided with safety valve, and described safety valve is between described checking cylinder and described brake valve.
As the improvement of technique scheme, it is characterized in that, described checking cylinder is pincers dish checking cylinder, and described oil pump is gear pump.
Compared with prior art, implementation result of the present utility model is as follows for the utility model:
A kind of full-hydraulic power brake system of forklift described in the utility model, can realize using the less braking moment required for pedal force acquisition, thus alleviate the labour intensity of operator, improve the operation comfortableness of car load, and braking time and brake cabin are every braking short than non-powered; Meanwhile, owing to have employed independently gear pump fuel feeding, solve the drawback adopting the fork-truck steering fuel feeding of traditional power brakes to be disturbed, improve fork truck car load safety and reliability in use.
Accompanying drawing explanation
Fig. 1 is a kind of full-hydraulic power brake system of forklift structural representation described in the utility model.
Detailed description of the invention
Below in conjunction with specific embodiments content of the present utility model is described.
As shown in Figure 1, be a kind of full-hydraulic power brake system of forklift structural representation described in the utility model.A kind of full-hydraulic power brake system of forklift described in the utility model, comprising: checking cylinder 1, brake valve 2, accumulator 3, fuel tank 4 and oil pump 5; Described checking cylinder 1 is pincers dish checking cylinder, and described oil pump 5 is gear pump.Described checking cylinder 1 is provided with brake pipe 6, and described brake pipe 6 one end connects described checking cylinder 1, and described brake pipe 6 other end connects described fuel tank 4 after described brake valve 2; Described brake pipe 6 is also provided with safety valve 11, and described safety valve 11 is between described checking cylinder 1 and described brake valve 2.Described oil pump 5 oil inlet end connects described fuel tank 4, described oil pump 5 oil outlet end is provided with pressurization oil pipe 7, and described pressurization oil pipe 7 one end connects described oil pump 5, described pressurization oil pipe 7 other end is provided with the first pressurization arm 7-1 and second pressurization arm 7-2 in parallel, described first pressurization arm 7-1 connects the oil inlet end of described accumulator 3, and described second pressurization arm 7-2 connects described fuel tank 4 after described brake valve 2.The oil outlet end of described accumulator 3 is provided with backflow oil pipe 8 in parallel and brake hard oil pipe 12, and described backflow oil pipe 8 connects described fuel tank 4, and described brake hard oil pipe 12 connects described brake valve 2; Described accumulator 3 is provided with low pressure warning switch 9, described backflow oil pipe 8 is provided with emergency stop switch 10.
When brake pedal is in original state, gear pump 5 output hydraulic pressure oil is transported to accumulator 3 by the first pressurization arm 7-1, be transmitted back to fuel tank 4 by the second pressurization arm 7-2 through brake valve 2, and the hydraulic oil in checking cylinder 1 flows back to fuel tank 4 through safety valve 11, brake valve 2 simultaneously.
Depress brake pedal when carrying out common braking, gear pump 5 output hydraulic pressure oil is transported to accumulator 3 by the first pressurization arm 7-1, be delivered to brake valve 2 by the second pressurization arm 7-2 simultaneously, checking cylinder 1 is flowed to again by brake pipe 6, implement braking, unnecessary hydraulic oil flows back to fuel tank 4 by the second pressurization arm 7-2 and brake pipe 6.
When pump damage or engine misses, start emergency stop switch 10 and cut off backflow oil pipe 8, carry out brake hard, the hydraulic oil of brake hard is provided by accumulator 3, depress brake pedal, hydraulic oil on accumulator 3 enters brake valve 2 by brake hard oil pipe 12, then acts directly on checking cylinder 1 by brake pipe 6, implements brake hard.Accumulator 3 is provided with low pressure warning switch 9, when accumulator 3 pressure is lower than a setting, the alarm lamp of buzzer is connected, and reports to the police to operator.
Technique scheme provides the more stable brakes more reliably of one, be made up of brake valve 2, checking cylinder 1 and accumulator 3, wherein brake valve 2 and accumulator 3 are connected in series and are attempted by common single pump or double pump double loop hydraulic system respectively, common composition full hydraulic power brake system, adopt independently gear pump 5 fuel feeding, one tunnel enters brake valve 2, then the checking cylinder 1 entering brake produces braking, another road enters accumulator 3, stored energy, for for subsequent use, two-way is all controlled by the stroke of brake pedal.When brake valve 2 is not operating, hydraulic oil no-load oil return box; When depressing brake pedal, 2, brake valve can provide hydraulic oil to implement braking, simultaneously to accumulator 3 pressurising to checking cylinder 1.
Above content is in conjunction with specific embodiments to the detailed description that the utility model is done, and can not assert that the utility model is specifically implemented to be only limitted to these explanations.For the utility model person of ordinary skill in the field, without departing from the concept of the premise utility, some simple deduction or replace can also be made, all should be considered as the scope belonging to the utility model protection.
Claims (4)
1. a full-hydraulic power brake system of forklift, is characterized in that, comprising: checking cylinder (1), brake valve (2), accumulator (3), fuel tank (4) and oil pump (5);
Described checking cylinder (1) is provided with brake pipe (6), and described brake pipe (6) one end connects described checking cylinder (1), and described brake pipe (6) other end connects described fuel tank (4) after described brake valve (2);
Described oil pump (5) oil inlet end connects described fuel tank (4), described oil pump (5) oil outlet end is provided with pressurization oil pipe (7), and described pressurization oil pipe (7) one end connects described oil pump (5), described pressurization oil pipe (7) other end is provided with the first pressurization arm (7-1) in parallel and the second pressurization arm (7-2), described first pressurization arm (7-1) connects the oil inlet end of described accumulator (3), and described second pressurization arm (7-2) connects described fuel tank (4) after described brake valve (2);
The oil outlet end of described accumulator (3) is provided with backflow oil pipe (8) in parallel and brake hard oil pipe (12), and described backflow oil pipe (8) connects described fuel tank (4), and described brake hard oil pipe (12) connects described brake valve (2).
2. a kind of full-hydraulic power brake system of forklift as claimed in claim 1, is characterized in that, described accumulator (3) is provided with low pressure warning switch (9), and described backflow oil pipe (8) is provided with emergency stop switch (10).
3. a kind of full-hydraulic power brake system of forklift as claimed in claim 1, is characterized in that, described brake pipe (6) is also provided with safety valve (11), and described safety valve (11) is positioned between described checking cylinder (1) and described brake valve (2).
4., as a kind of full-hydraulic power brake system of forklift as described in arbitrary in claims 1 to 3, it is characterized in that, described checking cylinder (1) for pincers dish checking cylinder, described oil pump (5) be gear pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420669205.4U CN204296696U (en) | 2014-11-11 | 2014-11-11 | A kind of full-hydraulic power brake system of forklift |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420669205.4U CN204296696U (en) | 2014-11-11 | 2014-11-11 | A kind of full-hydraulic power brake system of forklift |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204296696U true CN204296696U (en) | 2015-04-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420669205.4U Expired - Fee Related CN204296696U (en) | 2014-11-11 | 2014-11-11 | A kind of full-hydraulic power brake system of forklift |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204296696U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104875736A (en) * | 2015-06-09 | 2015-09-02 | 成都衔石科技有限公司 | Energy accumulator for auxiliary control of automobile |
| CN107063717A (en) * | 2017-06-06 | 2017-08-18 | 安徽合力股份有限公司 | A kind of device for detecting performance of fork truck energy storing brake system |
-
2014
- 2014-11-11 CN CN201420669205.4U patent/CN204296696U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104875736A (en) * | 2015-06-09 | 2015-09-02 | 成都衔石科技有限公司 | Energy accumulator for auxiliary control of automobile |
| CN107063717A (en) * | 2017-06-06 | 2017-08-18 | 安徽合力股份有限公司 | A kind of device for detecting performance of fork truck energy storing brake system |
| CN107063717B (en) * | 2017-06-06 | 2023-08-04 | 安徽合力股份有限公司 | Performance detection device of forklift energy storage braking system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150429 Termination date: 20171111 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |