CN87211128U - Self-supercharged reciprocating pump reiforcement hydraulic compressing apparatus - Google Patents
Self-supercharged reciprocating pump reiforcement hydraulic compressing apparatus Download PDFInfo
- Publication number
- CN87211128U CN87211128U CN 87211128 CN87211128U CN87211128U CN 87211128 U CN87211128 U CN 87211128U CN 87211128 CN87211128 CN 87211128 CN 87211128 U CN87211128 U CN 87211128U CN 87211128 U CN87211128 U CN 87211128U
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- cylinder
- reciprocating pump
- piston
- covers
- hydraulic compressing
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- Details Of Reciprocating Pumps (AREA)
- Reciprocating Pumps (AREA)
Abstract
The utility model provides a pressurization hydraulic compressing device with reinforcement for the valve cover or the cylinder cover of a reciprocating pump. The utility model is suitable for valve covers, cylinder covers and various pumps adopting fast disassembly and installation structures. In the device, a self spiral pressurization screw rod pressurizes in a rotating way on a small piston, and the reinforcement is realized by a large piston to impact the valve cover according to the isobaric principle. The hydraulic cylinder of the device adopts grease lubricant as the pressure transmitting medium, and a closed ring type check ring is designed, so the sealing is very reliable. The problems of the compacting, sealing, disassembly, installation, life time, etc. of the valve covers and the cylinder covers of the reciprocating pump valves can be settled nicely by applying the device. The reliability of the device is inspected and verified, so the device can be used for the design of new pumps and the modification of old pumps.
Description
The utility model relates to a kind of improved hydraulic compressing device that is used for high-power reciprocating pump valve gap, cylinder cap.
Existing hydraulic compressing device mainly is made up of gland oil cylinder, piston, hand pump, quick release coupling, high pressure hose, valve gap (or cylinder cap).Its working principle is by hand pump the thrust that produces on the in-oil cylinder piston pressurization of gland, the piston to be compressed valve gap (or cylinder cap).Because the hydraulic system sealing part of this structure is more, seal request is difficult to guarantee; The hand pump rate of fault that is used to pressurize is also high; Package unit complex structure in addition, therefore inconvenient operation fails extensively to promote the use of so far.The valve gap (or cylinder cap) of suction chamber is bearing violent pulsating load during reciprocating pump work, and the discharge side valve gap also is subjected to huge uplift force.Therefore, completely solve valve gap (or cylinder cap) as Heyuan Garden compress, just sealing, dismounting, problem such as durable seem increasingly important.
The purpose of this utility model just provides a kind of improved hydraulic compressing device, and it can realize the prestressing to valve gap (or cylinder cap) easily, guarantees that sealing is reliable, and makes the fast assembling-disassembling screw thread pay no longer generation tired and wearing and tearing.
The purpose of this utility model is achieved in that and connects a small oil tank that on the gland oil cylinder small piston in the small oil tank links with the pressurization screw mandrel.When tightening pressurization during screw mandrel, the pressurization screw mandrel becomes thrust to small piston with its screw-down torque, produces pressure in cylinder.Realize reinforcement according to equal pressure principle by big piston, thereby valve gap (or cylinder cap) is compressed.
When the utility model is used for the design of new pump, can be that advantageous conditions is created in the fluid end structure optimization.Compare with the reciprocating pump that adopts existing hydraulic compressing device, new pump has that volume is little, in light weight, the life-span long, sealing is reliable, the characteristics of easy maintenance.Transform existing pump with the utility model, also can improve the reliability of pump significantly, prolong the working life of pump, reduce and repair number of times, improve working conditions.
The concrete structure of model utility is provided by following examples and accompanying drawing thereof.
Fig. 1 carries pressurization reinforcement hydraulic compressing device sectional drawing according to the reciprocating pump that the utility model proposes.
With reference to Fig. 1, this hydraulic compressing device comprises a gland oil cylinder (1), a big piston (8) is arranged in the gland oil cylinder (1), big piston (8) is by " O " shape seal ring (9) sealing, the closed loop back-up ring (10) that is formed by teflon or nylon car system in the setting of " O " shape seal ring (9) pressure-bearing side.Small oil tank (4) adopts taper pipe thread to be connected with gland oil cylinder (1).Pressurization screw mandrel (3) adopts trapezoidal thread to be connected with small oil tank (4), and its end fuses by jump ring (5) and small piston (2).Small piston (2) is realized sealing by little " O " shape seal ring (7) and closed loop back-up ring (6).Big piston (8) is seated in valve gap (11) top.Transmission medium in the oil cylinder is a quick lime grease.
During operation, with ratchet-type moment spanner pressurization screw mandrel (3) is applied screw-down torque (general 15～30kgm), because pressurization screw mandrel (3) is connected as a single entity by jump ring (5) and small piston (2), the screw-down torque that is applied to pressurization screw mandrel (3) becomes thrust to small piston (2), produces pressure in oil cylinder.Realize reinforcement according to equal pressure principle by big piston (8), the reinforcement multiple is D
2/ d
2Because big piston (8) is seated in valve gap (11) top, so its downward reinforcement of producing becomes the extruding force to valve gap (11), and valve gap (11) is compressed.
Thisly carry the valve gap that pressurization reinforcement hydraulic compressing device can not only compress reciprocating pump, also can compress the cylinder cap of reciprocating pump.
Claims (2)
1, hydraulic compressing device that compresses reciprocating pump valve gap (or cylinder cap) of being made up of gland oil cylinder, piston, hand pump, quick release coupling, high pressure hose, valve gap (or cylinder cap) is characterized in that screw press reinforcement hydraulic compressing device is made up of pressurization screw mandrel [3], gland oil cylinder [1], big piston [8], small piston [2], small oil tank [4], valve gap [8] (or cylinder cap), " O " shape seal ring [7] [9], closed loop back-up ring [6] [10].
2, by the described hydraulic compressing device of claim 1, it is characterized in that pressure-producing part directly is connected on the gland oil cylinder (1) by small oil tank (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87211128 CN87211128U (en) | 1987-08-07 | 1987-08-07 | Self-supercharged reciprocating pump reiforcement hydraulic compressing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87211128 CN87211128U (en) | 1987-08-07 | 1987-08-07 | Self-supercharged reciprocating pump reiforcement hydraulic compressing apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN87211128U true CN87211128U (en) | 1988-10-05 |
Family
ID=4825982
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 87211128 Withdrawn CN87211128U (en) | 1987-08-07 | 1987-08-07 | Self-supercharged reciprocating pump reiforcement hydraulic compressing apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN87211128U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101839232A (en) * | 2010-05-27 | 2010-09-22 | 蓝星化工有限责任公司 | Device for removing air valve of compressor |
| CN101862959A (en) * | 2010-06-10 | 2010-10-20 | 柏松明 | Device and method for fabricating reinforced straight-thread connecting sleeve |
| CN102507329A (en) * | 2011-11-11 | 2012-06-20 | 何若泉 | Rigidity detection device for escalator skirt panel |
| CN108871784A (en) * | 2018-04-27 | 2018-11-23 | 北京航天动力研究所 | A kind of fixation device for the test of liquid rocket engine thrust chamber air-flow |
-
1987
- 1987-08-07 CN CN 87211128 patent/CN87211128U/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101839232A (en) * | 2010-05-27 | 2010-09-22 | 蓝星化工有限责任公司 | Device for removing air valve of compressor |
| CN101862959A (en) * | 2010-06-10 | 2010-10-20 | 柏松明 | Device and method for fabricating reinforced straight-thread connecting sleeve |
| CN102507329A (en) * | 2011-11-11 | 2012-06-20 | 何若泉 | Rigidity detection device for escalator skirt panel |
| CN108871784A (en) * | 2018-04-27 | 2018-11-23 | 北京航天动力研究所 | A kind of fixation device for the test of liquid rocket engine thrust chamber air-flow |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
| RN01 | Renewal of patent term | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |