CN202358081U - Hydraulic stress application pump - Google Patents
Hydraulic stress application pump Download PDFInfo
- Publication number
- CN202358081U CN202358081U CN2011205152286U CN201120515228U CN202358081U CN 202358081 U CN202358081 U CN 202358081U CN 2011205152286 U CN2011205152286 U CN 2011205152286U CN 201120515228 U CN201120515228 U CN 201120515228U CN 202358081 U CN202358081 U CN 202358081U
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- pump
- input port
- piston
- cylinder body
- pump housing
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Abstract
The utility model discloses a hydraulic stress application pump which comprises a pump body, a large piston, a cylinder body, a small piston and a push rod, wherein a hollow cavity, an input port and an output port are formed on the pump body; the sectional area of the input port is greater than that of the output port; the large piston is accommodated in the hollow cavity in a sealed sliding manner, so that the hollow cavity is divided into a left chamber and a right chamber which are communicated with the output port and the input port respectively; a communicating hole is formed in the large piston; due to the communicating hole, the left chamber is communicated with the right chamber; the cylinder body is accommodated in the communicating hole and fixedly connected with the large piston; a through hole is formed in the cylinder body, and an opening is formed on the cylinder body close to the input port; the small piston is accommodated in the through hole of the cylinder body in a sliding manner; one end of the small piston is connected with a compression spring which can drive the small piston and seal the opening of the cylinder body; and the push rod is fixed and pressed against the small piston to enable the small piston to be separated from the opening. The hydraulic stress application pump is implemented, so that the potential hazard caused by a reason that the air quality cannot meet the requirement is avoided fundamentally; and the hydraulic stress application pump has the characteristic of simple structure.
Description
Technical field
The utility model relates to the booster pump field, relates to a kind of hydraulic amplifier pump in particular, and it can be applicable to device and equipment such as automobile and construction machinery and equipment.
Background technology
Booster pump is meant a kind of work-saving device; Existing booster pump major part is gas and pushes away oily booster pump; It passes through the Air compressor pressurized air, and through oil water separator high pressure gas is filtered, and then promotes afterburning displacer piston through the high pressure gas that filter; And make the chamber supercharging of booster pump main pump, last high-voltage oil liquid promote caliper opening piston and realize the braking effect.
By on can know that it has following shortcoming at least above-mentioned booster pump:
One, whole brake system must be equipped with Air compressor, oil water separator or unloader valve and storage tank etc., thereby has the many and required defect of high cost of brake assemblies;
Two, booster pump requires than higher air quality, especially airborne dust and profit branch, and the air that wherein contains dust makes the seizure of piston of booster pump easily, and airborne profit branch then corrodes brake assemblies easily, and causes braking failure.
In view of this, the inventor has this case to produce to the above-mentioned defective in-depth study of existing booster pump then.
The utility model content
The purpose of the utility model is to provide a kind of hydraulic amplifier pump, and it is arranged between working barrel or speed-variable pump and the braking device, and to have a brake assemblies many and air quality required to compare problem of higher to solve existing booster pump.
In order to reach above-mentioned purpose, the solution of the utility model is:
A kind of hydraulic amplifier pump wherein, comprising:
The pump housing is formed with cavity volume, input port and delivery port, and the sectional area of this input port is greater than the sectional area of delivery port;
Big piston, salable slip is installed with in cavity volume, and cavity volume is divided into left chamber and the right chamber that is connected with delivery port and input port respectively, and this big piston also is formed with intercommunicating pore, and this intercommunicating pore is connected left chamber and right chamber;
Cylinder body is installed with in intercommunicating pore and with big piston and is fixedly linked, and also is formed with through hole in this cylinder body, and is being formed with opening near the input port place;
Valve piston slidably is installed with in the through hole of cylinder body, and an end also is connected with and can drives valve piston and the compression spring of sealed cylinder block opening;
Push rod, being fixedly, shape also can and be separated from each other valve piston and opening with the valve piston conflict.
Further, this cylinder body is provided with back-up ring at the end near delivery port, and this back-up ring and compression spring lean.
Further, the bar portion that this big piston has body and links to each other with body, the salable inwall that slides on the pump housing of this body; Two of this intercommunicating pore is located at respectively on body and the bar end surface, and this pump housing has also extended to form slide wall along the length direction of bar portion, and bar portion is salable slides in the slide wall for this.
Further, also be provided with the main spring of driving big piston between the body of this pump housing and big piston to the input port side shifting.
Further, also be provided with deflation hole on this pump housing, the space that forms between this bar portion and the pump housing is connected with deflation hole.
Further, this pump housing is respectively arranged with first joint and second joint at input port and equipped at outlet port, and this push rod is fixed on first joint.
Further, also be connected with permanent seat on this pump housing.
After adopting said structure, a kind of hydraulic amplifier pump that the utility model relates to, its input port links to each other with working barrel or speed-variable pump; When people need carry out brake operating and step on hydraulic brake valve, the fluid in working barrel or the speed-variable pump will enter into input port, and through valve piston make cavity volume about two chambers, delivery port and brake pipings all be full of fluid; Because the fluid of this moment has certain pressure, so can promote big piston simultaneously to the motion of delivery port direction, when valve piston breaks away from push rod; This compression spring promptly can promote valve piston and sealed open; Promptly let left chamber become a fully enclosed chamber, at this moment big piston continues then can form high pressure in left chamber toward left movement again; High-voltage oil liquid then can promote the braking device action, thereby realizes braking.And when the needs brake off, only need unclamp hydraulic brake valve, this input port fluid then can be got back to fuel tank; Big piston then can self-return; Valve piston then can touch push rod and let opening be to open shape in motion process, so left chamber is connected with input port, realizes the releasing to braking.
Can know on having that compared with prior art, the utility model has been realized the booster pump of fluid pressure type, thereby fundamentally avoid the hidden danger of bringing because of the requirement of air quality out of reach, also have characteristic of simple structure simultaneously.
Description of drawings
The structural representation of Fig. 1 a kind of hydraulic amplifier pump preferred embodiment for the utility model relates to;
Fig. 2 is the cutaway view of Fig. 1;
Fig. 3 is the cutaway view of cylinder body among Fig. 1;
Fig. 3 A is the upward view of Fig. 3.
Among the figure:
Hydraulic amplifier pump 100 pump housings 1
First joint, 17 second joints 18
Intercommunicating pore 21 bodies 22
Through hole 31 openings 32
Back-up ring 33 valve pistons 4
Compression spring 41 push rods 5
The specific embodiment
In order further to explain the technical scheme of the utility model, come the utility model is set forth in detail through specific embodiment below.
Shown in Fig. 1 to Fig. 3 A, a kind of hydraulic amplifier pump 100 that it relates to for the utility model, this hydraulic amplifier pump 100 are arranged between working barrel or speed-variable pump and the braking device (such as the brake clamp oil cylinder), thereby play the effect of auxiliary braking.
This hydraulic amplifier pump 100 comprises: the pump housing 1, big piston 2, cylinder body 3, valve piston 4 and push rod 5, wherein:
This pump housing 1; Be formed with cavity volume 11, input port 12 and delivery port 13; The sectional area of this input port 12 is greater than the sectional area of delivery port 13, thereby utilizes the groundwork of pressure, pressure and active area: P=F/S, can derive this hydraulic amplifier pump 100 easily and have the effect of reinforcement; In order to let the pump housing 1 integral body can be firm shape, also be connected with permanent seat 19 on this pump housing 1.
This big piston 2, salable slip is installed with in cavity volume 11, and cavity volume 11 is divided into left chamber 111 and right chamber 112, and this left chamber 111 is connected with delivery port 13, and this right side chamber 112 is connected with input port 12; This big piston 2 also is formed with intercommunicating pore 21, and this intercommunicating pore 21 is connected left chamber 111 and right chamber 112; In the present embodiment, this big piston 2 is for the ease of the setting of exhaust and main spring 6, and this big piston 2 has body 22 and bar portion 23, and this bar portion 23 links to each other with body 22, and it is preferably one-body molded setting; These body 22 salable inwalls that slide on the pump housing 1; Two of this intercommunicating pore 21 is located at respectively on body 22 and bar portion 23 end faces, and this pump housing 1 has also extended to form slide wall 14 along the length direction of bar portion 23, these bar portion 23 salable sliding in the slide wall 14.So then can let big piston 2 can fully be installed with in cavity volume 11; And can also let main spring 6 that the institute of setting is arranged; Promptly also be provided with main spring 6 between the body 22 of this pump housing 1 and big piston 2; This main spring 6 is used to drive big piston 2 to input port 12 side shiftings, thereby can play the effect that quickening resets.Can be known by above structure, be formed with a space 15 between this bar portion 23 and the pump housing 1, and in order to make the ability that moves back and forth of big piston 2 smooth and easy, also be provided with deflation hole 16 on this pump housing 1, this space 15 is connected with deflation hole 16.
This cylinder body 3 is installed with in intercommunicating pore 21 and with big piston 2 and is fixedly linked, and also is formed with through hole 31 in this cylinder body 3, and is being formed with opening 32 near input port 12 places;
This valve piston 4 slidably is installed with in the through hole 31 of cylinder body 3, and an end also is connected with and can drives valve piston 4 and the compression spring 41 of sealed cylinder block 3 openings 32; In the present embodiment, for the ease of the setting of compression spring 41, this cylinder body 3 is provided with back-up ring 33 at the end near delivery port 13, and this back-up ring 33 leans with compression spring 41.
This push rod 5, being fixedly, shape also can and be separated from each other valve piston 4 and opening 32 with valve piston 4 conflicts.Concrete; This pump housing 1 is provided with first joint 17 and second joint 18 at input port 12 respectively with delivery port 13 places; 5 of this push rods are fixed on first joint 17, thereby let it can present fixedly shape, and its set-up mode is not limited to this certainly; As long as be fixedly shape, such as can also directly being fixed on the pump housing 1.
In order to let the utility model fully disclosed, the working process in the face of the utility model is elaborated down:
At first, the input port 12 of hydraulic amplifier pump 100 is linked to each other with working barrel or speed-variable pump, and delivery port 13 is linked to each other with the brake clamp oil cylinder, thus the assembling of the hydraulic amplifier pump of realizing the utility model is related to 100;
When people need carry out brake operating, people only need step on hydraulic brake valve, and the fluid in working barrel or the speed-variable pump will enter into input port 12; And through valve piston 4 make cavity volume 11 about two chambers, delivery port 13 and brake pipings all be full of fluid since this moment fluid have certain pressure, move to delivery port 13 directions so can promote big piston 2 simultaneously; So this cylinder body 3 also can ultra simultaneously delivery port 13 directions move, the distance between valve piston 4 like this and the opening 32 is then by continuous shortening, and final this opening 32 of directly sealing; This valve piston 4 also is separated with push rod 5 simultaneously; Thereby let left chamber 111 become a fully enclosed chamber, at this moment big piston 2 continues toward left movement again, then can form high pressure in left chamber 111; High-voltage oil liquid then can promote the braking device action, thereby realizes braking.
When people need brake off; People only need unclamp hydraulic brake valve; These input port 12 fluid then can be got back to fuel tank, and 2 of big pistons can self-return, and 4 of valve pistons can touch push rod 5 and let opening 32 be in motion process opens shape; So left chamber 111 is connected with input port 12, realizes the releasing to braking.
Can know on having that compared with prior art, the utility model has been realized the booster pump of fluid pressure type, thereby fundamentally avoid the hidden danger of bringing because of the requirement of air quality out of reach, also have characteristic of simple structure simultaneously.
Product form of the foregoing description and graphic and non-limiting the utility model and style, the those of ordinary skill of any affiliated technical field all should be regarded as not breaking away from the patent category of the utility model to its suitable variation or modification of doing.
Claims (7)
1. a hydraulic amplifier pump is characterized in that, comprising:
The pump housing is formed with cavity volume, input port and delivery port, and the sectional area of this input port is greater than the sectional area of delivery port;
Big piston, salable slip is installed with in cavity volume, and cavity volume is divided into left chamber and the right chamber that is connected with delivery port and input port respectively, and this big piston also is formed with intercommunicating pore, and this intercommunicating pore is connected left chamber and right chamber;
Cylinder body is installed with in intercommunicating pore and with big piston and is fixedly linked, and also is formed with through hole in this cylinder body, and is being formed with opening near the input port place;
Valve piston slidably is installed with in the through hole of cylinder body, and an end also is connected with and can drives valve piston and the compression spring of sealed cylinder block opening;
Push rod, being fixedly, shape also can and be separated from each other valve piston and opening with the valve piston conflict.
2. a kind of hydraulic amplifier pump as claimed in claim 1 is characterized in that this cylinder body is provided with back-up ring at the end near delivery port, and this back-up ring and compression spring lean.
3. a kind of hydraulic amplifier pump as claimed in claim 1 is characterized in that, the bar portion that this big piston has body and links to each other with body, the salable inwall that slides on the pump housing of this body; Two of this intercommunicating pore is located at respectively on body and the bar end surface, and this pump housing has also extended to form slide wall along the length direction of bar portion, and bar portion is salable slides in the slide wall for this.
4. a kind of hydraulic amplifier pump as claimed in claim 3 is characterized in that, also is provided with between the body of this pump housing and big piston to drive the main spring of big piston to the input port side shifting.
5. a kind of hydraulic amplifier pump as claimed in claim 3 is characterized in that, also is provided with deflation hole on this pump housing, and the space that forms between this bar portion and the pump housing is connected with deflation hole.
6. a kind of hydraulic amplifier pump as claimed in claim 1 is characterized in that, this pump housing is respectively arranged with first joint and second joint at input port and equipped at outlet port, and this push rod is fixed on first joint.
7. a kind of hydraulic amplifier pump as claimed in claim 1 is characterized in that, also is connected with permanent seat on this pump housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205152286U CN202358081U (en) | 2011-12-12 | 2011-12-12 | Hydraulic stress application pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205152286U CN202358081U (en) | 2011-12-12 | 2011-12-12 | Hydraulic stress application pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202358081U true CN202358081U (en) | 2012-08-01 |
Family
ID=46569291
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205152286U Expired - Fee Related CN202358081U (en) | 2011-12-12 | 2011-12-12 | Hydraulic stress application pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202358081U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103161708A (en) * | 2011-12-12 | 2013-06-19 | 厦门厦工机械股份有限公司 | Hydraulic booster pump |
-
2011
- 2011-12-12 CN CN2011205152286U patent/CN202358081U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103161708A (en) * | 2011-12-12 | 2013-06-19 | 厦门厦工机械股份有限公司 | Hydraulic booster pump |
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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: 20120801 Termination date: 20171212 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |