CN205292612U - Gas cap liquid air thrust boosting pump of loader - Google Patents
Gas cap liquid air thrust boosting pump of loader Download PDFInfo
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- CN205292612U CN205292612U CN201521063750.XU CN201521063750U CN205292612U CN 205292612 U CN205292612 U CN 205292612U CN 201521063750 U CN201521063750 U CN 201521063750U CN 205292612 U CN205292612 U CN 205292612U
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Abstract
The utility model discloses a gas cap liquid air thrust boosting pump of loader, including air chamber and pneumatic cylinder, the air chamber in the gas piston adopt diaphragm (4), diaphragm (4) be connected through hydraulic piston assembly (19) in push rod (27) and the pneumatic cylinder. Adopt above -mentioned technical scheme, through the improvement with the air chamber cavity configuration, gas piston leather collar that the diaphragm replaces leaks gas after having avoided the long -time service wear of gas piston leather collar in the past, also can not cause gas leakage even the dustproof effect of respirator is poor to this improves reliability of an item, change the direction of rubber seal face, avoid the voltol oil to strike sealing rubber's front to improve the life of product, increase the support ring, can avoid Y shape circle to drop and wear and tear to this improves reliability of an item.
Description
Technical field
This utility model belongs to the technical field of braking system of engineering machinery. More specifically, this utility model relates to the gas cap liquid air boosting pump of a kind of loader.
Background technology
Traditional air boosting pump air chamber is made up of with being connected lid cylinder body assembly, push-rod piston assembly, air breather assembly, is that the gas outlet air pressure by air brake valve promotes push-rod piston assembly during work, and push rod promotes hydraulic pressure assembly attainment brake hydraulic pressure alive.
Prior art there is the problem that
1, the gas Piston leather collar on push-rod piston assembly rubs with cylinder block inner surface for a long time, can cause that gas Piston leather collar cutting edge weares and teares, and respiratory organ is when operating mode is severe, the respiratory organ that works long hours also cannot blocks dust and foreign body enter inside cylinder block completely, affect greatly on the durability of booster pump;
2, connect the Y shape circle covered and do not fix device, work long hours easy to fall off, the durability of booster pump is affected greatly.
3, the ram seat forward of air boosting pump hydraulic cavities seals, and product is when return, and the rubber that the hydraulic oil in pipeline impacts in ram seat causes breakage, causes seal failure, thus causing brake failure.
Utility model content
This utility model provides the gas cap liquid air boosting pump of a kind of loader, its objective is to improve reliability and the durability of product.
To achieve these goals, the technical scheme that this utility model is taked is:
The gas cap liquid air boosting pump of loader of the present utility model, including air chamber and hydraulic cylinder, the gas piston in described air chamber adopts diaphragm, and described diaphragm is connected with the hydraulic piston assembly in hydraulic cylinder by push rod.
Described push rod is supported by the back casing assembly on described air chamber, and is sealed by Y shape circle; Arranging pushing out ring and a hole back-up ring on described back casing assembly, described Y shape circle is carried out axial limiting by a described pushing out ring and hole back-up ring.
The end of described push rod is connected with ram seat, and described ram seat is arranged on the inner chamber of hydraulic piston assembly, and the end of described hydraulic piston assembly is provided with aperture.
This utility model adopts technique scheme, by the improvement by air chamber structure, the gas Piston leather collar that diaphragm replaces, it is to avoid conventional gas Piston leather collar works long hours gas leakage after abrasion, even if respiratory organ dust-proof effect difference is without causing gas leakage, improve the reliability of product with this;Change the direction in rubber seal face, it is to avoid the hydraulic oil frontal impact to caulking gum, thus improving the service life of product; Increase a pushing out ring, Y shape circle can be avoided to come off and wear and tear, improve the reliability of product with this.
Accompanying drawing explanation
Labelling brief description in accompanying drawing content and figure is as follows:
Fig. 1 is the structural representation of loader air boosting pump of the prior art;
Fig. 2 is the left view schematic diagram of structure shown in Fig. 1;
Fig. 3 is structural representation of the present utility model;
Fig. 4 is the left view schematic diagram of structure shown in Fig. 3.
Figure is labeled as:
1, hexagonal flange nut, 2, bolt, 3, cap assembly, 4, diaphragm, 5, pallet, 6, return spring, 7, clip, 8, gas chamber shell assembly, 9, lining, 10, packing ring, 11, dust ring, 12, packing ring, 13, Y shape circle, 14, O-ring seals, 15, oil storage cup assembly, 16, skeleton rectangular loop, 17, hydraulic cylinder, 18, bleed screw, 19, hydraulic piston assembly, 20, ram seat, 21, hole back-up ring, 22, hex bolts, 23, spring washer, 24, hole back-up ring, 25, a pushing out ring, 26, air breather assembly, 27, push rod.
Detailed description of the invention
Below against accompanying drawing, by the description to embodiment, detailed description of the invention of the present utility model is described in further detail, to help those skilled in the art that inventive concept of the present utility model, technical scheme are had more complete, accurate and deep understanding.
Structure of the present utility model as expressed by Fig. 3, Fig. 4, for the gas cap liquid air boosting pump of a kind of loader, including air chamber and hydraulic cylinder. Mainly Liu work 50 loader gas cap liquid air boosting pump, particularly relates to MP409LG diaphragm booster pump. Belong to the technical field of mechanical loader braking device.
Annexation of the present utility model:
Air boosting pump air inlet is connected with air brake valve (in system original a kind of valve) gas outlet, and oil-out is connected with brake oil-in.
Static position relation of the present utility model:
Ram seat 20 is spacing with push rod 27 to be connected, and push rod 27 is connected by thread belt glue with the welded nut on pallet 5.
Ensure to seal by Y shape circle 13 and dust ring 11 between push rod 27 and housing assembly. Oil storage cup assembly 15 and hydraulic cylinder 17 are threaded connection. Seal by skeleton rectangular loop 16 between oil storage cup assembly and hydraulic cylinder 17. Air breather assembly 26 spiral is connected on back casing assembly.
Under the effect of return spring 6, ram seat 20 is disengaged by push rod 27 with valve assembly sealing surface, it is ensured that in hydraulic piston assembly 19, �� 3 aperture is unimpeded, and brake fluid returns oil storage cup by �� 3 aperture. The clamping by clip 7 of cap assembly 3, diaphragm 4 and gas chamber shell assembly 8, constitutes the profile of whole booster pump air chamber.
Open end providing holes back-up ring 21 at described hydraulic piston assembly 19.
Gas chamber shell assembly 8 includes cap assembly 3, housing, reinforcement plate, installs nut and central axle sleeve.
Cap assembly 3 includes welded nut, lid body. Welded nut is the structure being threaded connection and installing inlet suction port.
The joint of the annular that clip 7 is formed, by bolt 2 and hexagonal flange nut 1 by cap assembly 3, diaphragm 4 and housing assembly 8 firm grip. The specification of described bolt 2 is M10 �� 55.
Lining 9 is set between central axle sleeve and push rod 27.
Between described central axle sleeve and hydraulic cylinder 17, O-ring seals 14 is set
Between described dust ring 11 and the inner face of central axle sleeve, packing ring 10 is set.
Above the oil-out end of hydraulic cylinder 17, bleed screw 18 is set.
Described hydraulic cylinder 17 is fastened on described gas chamber shell assembly 8 by hex bolts 22 and spring washer 23. The specification of described hex bolts 22 is M10.
In order to solve prior art Problems existing and overcome its defect, it is achieved improving the reliability of product and the goal of the invention of durability, the structure of existing product is carried out Transform Type design and update by this utility model:
As shown in Figure 3, Figure 4, the gas cap liquid air boosting pump of loader of the present utility model, the gas piston in described air chamber adopts diaphragm 4, and described diaphragm 4 is connected with the hydraulic piston assembly 19 in hydraulic cylinder by push rod 27.
Air chamber changes diaphragm structure into, even if respiratory organ dust-proof effect difference has dust, entrance diaphragm chamber booster pump also can normal operation.
Described push rod 27 is supported by the back casing assembly on described air chamber, and is sealed by Y shape circle 13; Arranging pushing out ring 25 and a hole back-up ring 24 on described back casing assembly, described Y shape circle 13 is carried out axial limiting by a described pushing out ring 25 and hole back-up ring 24.
Back casing assembly increases pushing out ring 25 and a hole back-up ring 24, it is prevented that Y shape circle 13 comes off and weares and teares and causes oil leakage fault, thus improve the service life of product.
Between described dust ring 11 and Y shape circle 13, packing ring 12 is set.
The end of described push rod 27 is connected with ram seat 20, and described ram seat 20 is arranged on the inner chamber of hydraulic piston assembly 19, and the end of described hydraulic piston assembly 19 is provided with aperture.
The forward of ram seat 20 seals and changes reverse sealing into, avoids the hydraulic oil frontal impact to caulking gum.
Dynamic position relation of the present utility model:
During braking, the air pressure from air brake valve gas outlet enters into cap assembly 3 and diaphragm 4 inner chamber by air inlet. The promotion of air pressure, makes diaphragm 4 deform, pushes ahead; Owing to promotion pallet 5 assembly of diaphragm 4 moves forward, push rod 27 heads on ram seat 20 and seals valve assembly, forms hydraulic oil at hydraulic cylinder 17 inner chamber.
When releasing braking, under the effect of return spring 6, �� 3 aperture opens wide, and brake fluid is returned lubricating cup by �� 3 aperture, and push-rod piston assembly resets.
Operation principle of the present utility model:
To inlet charge during braking, diaphragm 4 promotes pallet 5 assembly to move forward, and push rod 27 promotes ram seat 20 to seal oil inlet valve sealing surface, produces pressure in hydraulic cylinder 17; When air pressure discharges, under the effect of return spring 6, pallet 5 assembly is by air breather assembly 26 inspiration pure air and resets, and repairing hole is opened wide, and hydraulic oil is returned lubricating cup by repairing hole.
The beneficial effect of the invention:
This product is by by the improvement of air chamber structure, the gas Piston leather collar that diaphragm replaces, it is to avoid conventional gas Piston leather collar works long hours gas leakage after abrasion, even if respiratory organ dust-proof effect difference is without causing gas leakage, improves the reliability of product with this. Change the direction in rubber seal face, it is to avoid the hydraulic oil frontal impact to caulking gum, thus improving the service life of product. Increase a pushing out ring, Y shape circle can be avoided to come off and wear and tear, improve the reliability of product with this.
Above in conjunction with accompanying drawing, this utility model is exemplarily described; obvious this utility model implements and is not subject to the restrictions described above; as long as have employed the improvement of the various unsubstantialities that method of the present utility model design carries out with technical scheme; or not improved design of the present utility model and technical scheme are directly applied to other occasion, all within protection domain of the present utility model.
Claims (3)
1. the gas cap liquid air boosting pump of a loader, including air chamber and hydraulic cylinder, it is characterized in that: the gas piston in described air chamber adopts diaphragm (4), and described diaphragm (4) is connected with the hydraulic piston assembly (19) in hydraulic cylinder by push rod (27).
2. the gas cap liquid air boosting pump of the loader described in claim 1, it is characterised in that: described push rod (27) is supported by the back casing assembly on described air chamber, and is sealed by Y shape circle (13); Arranging pushing out ring (25) and a hole back-up ring (24) on described back casing assembly, described Y shape circle (13) is carried out axial limiting by a described pushing out ring (25) and hole back-up ring (24).
3. the gas cap liquid air boosting pump of the loader described in claim 1, it is characterized in that: the end of described push rod (27) is connected with ram seat (20), described ram seat (20) is arranged on the inner chamber of hydraulic piston assembly (19), and the end of described hydraulic piston assembly (19) is provided with aperture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521063750.XU CN205292612U (en) | 2015-12-17 | 2015-12-17 | Gas cap liquid air thrust boosting pump of loader |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521063750.XU CN205292612U (en) | 2015-12-17 | 2015-12-17 | Gas cap liquid air thrust boosting pump of loader |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205292612U true CN205292612U (en) | 2016-06-08 |
Family
ID=56471577
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521063750.XU Active CN205292612U (en) | 2015-12-17 | 2015-12-17 | Gas cap liquid air thrust boosting pump of loader |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205292612U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105416261A (en) * | 2015-12-17 | 2016-03-23 | 芜湖盛力科技股份有限公司 | Air-over-hydraulic air boosting pump of loader |
-
2015
- 2015-12-17 CN CN201521063750.XU patent/CN205292612U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105416261A (en) * | 2015-12-17 | 2016-03-23 | 芜湖盛力科技股份有限公司 | Air-over-hydraulic air boosting pump of loader |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |