CN204472779U - A kind of magnetic suspension train gas cap liquid air boosting pump - Google Patents
A kind of magnetic suspension train gas cap liquid air boosting pump Download PDFInfo
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- CN204472779U CN204472779U CN201420815216.9U CN201420815216U CN204472779U CN 204472779 U CN204472779 U CN 204472779U CN 201420815216 U CN201420815216 U CN 201420815216U CN 204472779 U CN204472779 U CN 204472779U
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Abstract
The utility model discloses a kind of magnetic suspension train gas cap liquid air boosting pump, cylinder body assembly and hydraulic cylinder are fastenedly connected by connection cover; Connection cover is provided with air breather assembly; Gas piston and hydraulic piston assembly are by being connected through the push rod of connection cover endoporus; Push rod is connected with hydraulic piston assembly by ram seat; In hydraulic piston assembly, be provided with hydraulic piston seal seat, towards the one side of ram seat on hydraulic piston seal seat, be provided with caulking gum.Adopt technique scheme, change the direction in rubber seal face, avoid high pressure oil to the frontal impact of caulking gum; Gas piston increases guide ring, can avoid gas Piston leather collar uneven wear; Increase support ring, Y shape circle can be avoided to come off and wear and tear; By the improvement by respirator, ensure the cleaning of cylinder assembly, thus improve product reliability and service life.
Description
Technical field
The utility model belongs to the technical field of high-speed train braking device.More specifically, the utility model relates to a kind of magnetic suspension train gas cap liquid air boosting pump.
Background technology
The ram seat forward sealing of air boosting pump hydraulic cavities of the prior art, product is when return, and the rubber that the high pressure oil in pipeline impacts in ram seat causes breakage, causes seal failure, thus causes brake failure.
As shown in Figure 3 and Figure 4:
Gas piston of the prior art does not have guide piece, works long hours and causes gas Piston leather collar uneven wear, very big on the durability impact of booster pump.
In addition, the Y shape circle on connection cover of the prior art does not have anchor fitting, works long hours and easily comes off, very big on the durability impact of booster pump.
As shown in Figure 1, the filter screen 30 in respirator of the prior art, adopts nylon gauze, and therefore, when operating mode is severe, through working long hours, respirator blocks dust and foreign matter cannot enter cylinder interior completely, very big on the durability impact of booster pump.
Utility model content
The utility model provides a kind of magnetic suspension train gas cap liquid air boosting pump, its objective is the reliability and durability that improve product.
To achieve these goals, the technical scheme that the utility model is taked is:
Magnetic suspension train gas cap liquid air boosting pump of the present utility model, comprises cylinder body assembly, gas piston, hydraulic cylinder, hydraulic piston assembly; Described cylinder body assembly and hydraulic cylinder are fastenedly connected by connection cover; Described connection cover is provided with air breather assembly; Described gas piston and hydraulic piston assembly are by being connected through the push rod of connection cover endoporus; Described push rod is connected with hydraulic piston assembly by ram seat; In described hydraulic piston assembly, be provided with hydraulic piston seal seat, towards the one side of ram seat on described hydraulic piston seal seat, be provided with caulking gum.
On the surface that described gas piston coordinates with cylinder body assembly, be provided with the guide ring of annular; Described guide ring is positioned at the one end towards hydraulic cylinder of the Piston leather collar on gas piston.
Described connection cover is installed in the endoporus of push rod, be provided with y-shaped ring; Also be provided with support ring, the around shaping drum body of described support ring is stuck in the circular groove of the Y shape of described y-shaped ring; Described support ring passing hole back-up ring is fixed.
Filter screen in described air breather assembly is the copper filter screen of bronze particles sintering.
The respirator body of described air breather assembly adopts with respirator lid and is threaded.
The utility model adopts technique scheme, changes the direction in rubber seal face, avoids high pressure oil to the frontal impact of caulking gum; Gas piston increases guide ring, can avoid gas Piston leather collar uneven wear; Increase support ring, Y shape circle can be avoided to come off and wear and tear; By the improvement by respirator, ensure the cleaning of cylinder assembly, thus improve product reliability and service life.
Accompanying drawing explanation
Below the content expressed by each width accompanying drawing of this specification sheets and the mark in figure are briefly described:
Fig. 1 is the structural representation of respirator of the prior art;
Fig. 2 is the respiratory organ structure schematic diagram in the utility model;
Fig. 3 is the structural representation of air boosting pump of the prior art;
Full section schematic diagram is looked on the left side that Fig. 4 is structure shown in Fig. 3;
Fig. 5 is the structural representation of the air boosting pump in the utility model;
Full section schematic diagram is looked on the left side that Fig. 6 is structure shown in Fig. 5;
Fig. 7 is the schematic diagram of the amplification at A place in Fig. 6;
Fig. 8 is the enlarged diagram of hydraulic piston assembly and ram seat in Fig. 6.
Be labeled as in figure:
1, cylinder body assembly, 2, gas piston, 3, pull back spring, 4, dust ring, 5, connection cover, 6, O-ring seals, 7, O-ring seals, 8, oil storage cup assembly, 9, hydraulic cylinder, 10, air bleed screw, 11, hydraulic piston assembly, 12, ram seat, 13, hole is with back-up ring (specification 25), 14, bolt (specification M10), 15, packing ring (specification 10), 16, hole is with back-up ring (specification 32), 17, support ring, 18, y-shaped ring, 19, packing ring, 20, bolt (specification M8), 21, packing ring (specification 8), 22, nut (specification M8), 23, lining, 24, skeleton rectangular loop, 25, jam nut, 26, air breather assembly, 27, Piston leather collar, 28, push rod, 29, guide ring, 30, filter screen, 31, respirator body, 32, respirator lid, 33, hydraulic piston seal seat.
Detailed description of the invention
Contrast accompanying drawing below, by the description to embodiment, detailed description of the invention of the present utility model is described in further detail, have more complete, accurate and deep understanding to help those skilled in the art to inventive concept of the present utility model, technical scheme.
Structure of the present utility model is as shown in Figure 5, Figure 6 a kind of magnetic suspension train gas cap liquid air boosting pump, also known as making CXF614 air boosting pump.Annexation of the present utility model: air boosting pump admission port is connected with air brake valve (in system original a kind of valve) air extractor duct, and oil outlet is connected with drg oil inlet.
This air boosting pump comprises cylinder body assembly 1, gas piston 2, hydraulic cylinder 9, hydraulic piston assembly 11; Described cylinder body assembly 1 is fastenedly connected by connection cover 5 with hydraulic cylinder 9; Described connection cover 5 is provided with air breather assembly 26; Described gas piston 2 is connected by the push rod 28 through connection cover 5 endoporus with hydraulic piston assembly 11; Described push rod 28 is connected with hydraulic piston assembly 11 by ram seat 12.
Described hydraulic cylinder 9 arranges oil storage cup assembly 8.The outer end of hydraulic cylinder 9 is also provided with air bleed screw 10.
Described gas piston 2 is supported by pull back spring 3.Pull back spring 3 and push rod 28 are coaxially installed, and its one end is supported on gas piston 2, and the other end is dynamic to be supported on connection cover 5, hydraulic piston assembly 11 are in return, state that hydraulic actuating cylinder acting chamber volume is maximum.
Pass through to organize bolt 20, nut 22 and packing ring 21 between described cylinder body assembly 1 and connection cover 5 to be fastenedly connected more, and sealed by O-ring seals 6; Described bolt 20, the specification of nut 22 are M8, and the specification of packing ring 21 is 8mm.
By organizing bolt 14 and packing ring 15 is fastenedly connected between described hydraulic cylinder 9 and connection cover 5, and sealed by O-ring seals 7 more.The specification of described bolt 20 is M10, and the specification of packing ring 21 is 10mm.
As shown in Figure 8, described ram seat 12 passing hole back-up ring 13, is limited in the inner chamber of hydraulic piston assembly 11.The specification of described hole back-up ring is 25mm.
In the central authorities of the closed end of described cylinder body assembly 1, admission port is set, admission port arranges skeleton rectangular loop 24 and jam nut 25.
In order to solve prior art Problems existing and overcome its defect, realize improving the reliability of product and the goal of the invention of durability, the technical scheme that the utility model is taked is:
As shown in Figure 5, Figure 6, magnetic suspension train gas cap liquid air boosting pump of the present utility model, in described hydraulic piston assembly 11, is provided with hydraulic piston seal seat 33, towards the one side of ram seat 12 on described hydraulic piston seal seat 33, is provided with caulking gum.
The utility model changes the sealing of the forward of ram seat 12 into reverse sealing.Change the direction in rubber seal face, avoid high pressure oil to the frontal impact of caulking gum, thus improve the service life of product.
On the surface that described gas piston 2 coordinates with cylinder body assembly 1, be provided with the guide ring 29 of annular; Described guide ring 29 is positioned at the one end towards hydraulic cylinder 9 of the Piston leather collar on gas piston 2.
The utility model increases guide ring 29 to gas piston 2 of the prior art, can effectively avoid gas Piston leather collar uneven wear and cause air chamber to leak gas, thus improve the service life of product.
As shown in Figure 7:
Described connection cover 5 is installed in the endoporus of push rod 28, is provided with y-shaped ring 18; Also be provided with support ring 17, the around shaping drum body of described support ring 17 is stuck in the circular groove of the Y shape of described y-shaped ring 18; Described support ring 17 passing hole back-up ring 16 is fixed.
The opposite ends of the circular groove of the Y shape of y-shaped ring 18, arranges packing ring 19.Y-shaped ring 18 carries out axial limiting by packing ring 19 and the endoporus bottom of connection cover 5.
Described connection cover 5 is installed in the endoporus of push rod 28, be also provided with dust ring 4.Dust ring 4 is positioned at the direction of packing ring 19 towards cylinder body assembly, between dust ring 4 and packing ring 19, arranges lining 23.
The utility model increases support ring 17 and back-up ring 16 on connection cover 5, prevents y-shaped ring 18 from coming off and wearing and tearing and causes oil leakage fault, thus improves reliability and the service life of product.
As shown in Figure 2:
The copper filter screen that filter screen 30 in described air breather assembly 26 sinters for bronze particles.
The respirator body 31 of described air breather assembly 26 adopts with respirator lid 32 and is threaded.
The utility model carries out Transform Type design and update to respiratory organ structure of the prior art.By the improvement by respirator, original gauze is changed into the copper filter screen of bronze particles sintering, sealing good filtration effect.Ensure the cleaning of cylinder assembly, improve the reliability of product with this.
Respirator profile after the utility model improves is larger than traditional size, and body is threaded with lid employing, facilitates chaufeur to dismantle respirator and carries out cleaning regularly, thus improve the service life of product.
Static position relation of the present utility model:
Ram seat 12 is by the spacing connection of push rod 28, and push rod 28 is connected by thread belt glue with gas piston 2.Ensure to seal by y-shaped ring 18 and dust ring 4 between push rod 28 and connection cover 5; Oil storage cup assembly 8 and hydraulic cylinder 9 are threaded connection; Seal with O-ring seals 7 between connection cover 5 and hydraulic cylinder 9.Air breather assembly 26 is spun on connection cover 5.Under the effect of pull back spring 3, ram seat 12 and valve assembly sealing surface are thrown off by push rod 28, and ensure that in hydraulic piston, φ 3 aperture is unimpeded, braking liquid enters cylinder chamber by Φ 3 aperture.
Dynamic position relation (i.e. principle of work):
During braking, to inlet charge: the air pressure from air brake valve air extractor duct enters into cylinder body assembly 1 inner chamber by the admission port of cylinder body assembly 1 end, promote the reach of gas piston 2 assembly, promote push rod 28 to move forward, push rod 28 heads on the sealing surface that ram seat 12 seals valve assembly, forms high pressure oil at hydraulic cylinder 9 inner chamber.
During brake off, air pressure discharges, under the effect of pull back spring 3, push-rod piston assembly is by respirator inspiration pure air and reset, in hydraulic piston, φ 3 aperture (repairing hole) opens wide, and braking liquid returns lubricating cup by φ 3 aperture, and push-rod piston assembly resets.
By reference to the accompanying drawings the utility model is exemplarily described above; obvious the utility model specific implementation 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 is conceived and technical scheme is carried out; or design of the present utility model and technical scheme directly applied to other occasion, all within protection domain of the present utility model without to improve.
Claims (5)
1. a magnetic suspension train gas cap liquid air boosting pump, comprises cylinder body assembly (1), gas piston (2), hydraulic cylinder (9), hydraulic piston assembly (11); Described cylinder body assembly (1) and hydraulic cylinder (9) are fastenedly connected by connection cover (5); Described connection cover (5) is provided with air breather assembly (26); Described gas piston (2) is connected by the push rod (28) through connection cover (5) endoporus with hydraulic piston assembly (11); Described push rod (28) is connected with hydraulic piston assembly (11) by ram seat (12);
It is characterized in that:
In described hydraulic piston assembly (11), be provided with hydraulic piston seal seat (33), towards the one side of ram seat (12) on described hydraulic piston seal seat (33), be provided with caulking gum.
2. according to magnetic suspension train gas cap liquid air boosting pump according to claim 1, it is characterized in that: on the surface that described gas piston (2) coordinates with cylinder body assembly (1), be provided with the guide ring (29) of annular; Described guide ring (29) is positioned at the one end towards hydraulic cylinder (9) of the Piston leather collar on gas piston (2).
3. according to magnetic suspension train gas cap liquid air boosting pump according to claim 1, it is characterized in that: install in the endoporus of push rod (28) on described connection cover (5), be provided with y-shaped ring (18); Also be provided with support ring (17), the around shaping drum body of described support ring (17) is stuck in the circular groove of the Y shape of described y-shaped ring (18); Described support ring (17) passing hole back-up ring (16) is fixed.
4. according to magnetic suspension train gas cap liquid air boosting pump according to claim 1, it is characterized in that: the copper filter screen that the filter screen (30) in described air breather assembly (26) sinters for bronze particles.
5. according to magnetic suspension train gas cap liquid air boosting pump according to claim 1, it is characterized in that: the respirator body (31) of described air breather assembly (26) adopts with respirator lid (32) and is threaded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420815216.9U CN204472779U (en) | 2014-12-20 | 2014-12-20 | A kind of magnetic suspension train gas cap liquid air boosting pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420815216.9U CN204472779U (en) | 2014-12-20 | 2014-12-20 | A kind of magnetic suspension train gas cap liquid air boosting pump |
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| Publication Number | Publication Date |
|---|---|
| CN204472779U true CN204472779U (en) | 2015-07-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420815216.9U Active CN204472779U (en) | 2014-12-20 | 2014-12-20 | A kind of magnetic suspension train gas cap liquid air boosting pump |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104477157A (en) * | 2014-12-20 | 2015-04-01 | 芜湖盛力科技股份有限公司 | Air-assisted hydraulic air booster pump for magnetically levitated train |
-
2014
- 2014-12-20 CN CN201420815216.9U patent/CN204472779U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104477157A (en) * | 2014-12-20 | 2015-04-01 | 芜湖盛力科技股份有限公司 | Air-assisted hydraulic air booster pump for magnetically levitated train |
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