CN204061135U - A kind of durable two-cylinder type plunger pump - Google Patents
A kind of durable two-cylinder type plunger pump Download PDFInfo
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- CN204061135U CN204061135U CN201420346951.XU CN201420346951U CN204061135U CN 204061135 U CN204061135 U CN 204061135U CN 201420346951 U CN201420346951 U CN 201420346951U CN 204061135 U CN204061135 U CN 204061135U
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- plunger
- pump
- pump housing
- vestibule
- rubber seal
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Abstract
A kind of durable two-cylinder type plunger pump.There is plunger easily wear and tear to solve existing similar technique in the utility model, rubber seal assembling and change trouble, reactive loss and the serious defect of energy consumption.Drip irrigation device: comprise motor and plunger pump, plunger pump comprises the left and right pump housing, pump head and plunger, the left and right pump housing is fixed on pump head, the left and right pump housing is equipped with pump chamber, water inlet and outlet one-way cock and plunger vestibule, plunger vestibule is equipped with seal ring, be slidably matched with seal ring in the plunger vestibule that plunger axis stretches into the left and right pump housing respectively, driving cam means on motor shaft coordinates with plunger actuation breach, pump head has turnover water channel, turnover water channel is connected with water inlet and outlet one-way cock respectively, feature is plunger vestibule is the straight hole that seal ring external diameter is suitable, hush panel groove is provided with outside the accent of plunger vestibule, sealing board slot is equipped with hush panel, hush panel has plunger hole, plunger hole close-fitting has self lubrication bearing, plunger axis is slidably fitted on self lubrication bearing and is slidably matched with seal ring.
Description
Technical field
The utility model relates to a kind of oil hydraulic pump, particularly a kind of durable two-cylinder type plunger pump.
Background technique
Plunger pump is the cardiac devices of hydraulic system, and it relies on plunger to-and-fro motion in cylinder body, makes the volume of seal operation cavity volume change and produce the change of pressure, thus orders about the directional flow of liquid.Because the motor shaft of two-cylinder type plunger pump often rotates a circle, plunger just can do secondary merit back and forth, so have, mechanical efficiency is high, compact structure, uniform flow, working pressure advantages of higher.
The existing two-cylinder type plunger pump close to structure, just like a kind of duplex plunger pump disclosed in No. 201120453055.Xth, Chinese patent, it comprises drive motor, plunger and the pump housing, the rear side of the pump housing is connected with drive motor, be provided with cam path at the middle part of described plunger, the cam of drive motor motor shaft ends is placed in this cam path; The described pump housing is made up of the left pump housing and the right pump housing, plunger cavity and pressure chamber is equipped with in the described left and right pump housing, pressure chamber and plunger cavity communicate, in the piston cavity of the two ends of described the plunger accommodating and left and right pump housing respectively, water seal is provided with in piston cavity, also be provided with water inlet and osculum in the front side of the left and right pump housing, water inlet and osculum communicate with pressure chamber, are equipped with one-way valve in water inlet and osculum; Also be connected with pump head on front side of the described pump housing, pump head inside is provided with inlet channel and water outlet, and inlet channel and water outlet communicate with water inlet and osculum respectively, and inlet channel is communicated with external pipe with water outlet by water inlet interface and water outlet mouthpiece and is connected.Also be provided with the discharge channel of connection between inlet channel and water outlet, in discharge channel, be provided with pressure-relief valve.
The defect of this two-cylinder type plunger pump scheme above-mentioned: one is establish rubber water sealing owing to only padding between plunger and plunger cavity, so plunger is poor along the reciprocating centering in plunger cavity medial axis, often cause plunger and plunger cavity wall friction, after friction causes plunger wear, to occur that plunger pump hydraulic pressure does not reach setting value, and plunger pump is not durable; Two is plunger cavity structure imperfections, the structure fabrication difficulty of fixing rubber seal, the assembling of rubber seal and replacing trouble; Three is that adopt can not the AC motor of speed governing, so discharge channel and pressure-relief valve must be provided with between water outlet and inlet channel, when needs adjust the water yield or hydraulic pressure, unnecessary water can be back to inlet channel from water outlet, but like this causes reactive loss and energy consumption is serious.
Summary of the invention
There is plunger easily wear and tear to overcome existing two-cylinder type plunger pump, plunger pump hydraulic pressure is caused not reach setting value and be not durable, plunger cavity structure imperfection, the assembling of rubber seal and replacing trouble, reactive loss and the defect such as energy consumption is serious, the purpose of this utility model is to provide a kind of durable duplex plunger pump of improvement, can overcome the defect of prior art.
The utility model solves the technological scheme that its technical problem adopts: a kind of durable two-cylinder type plunger pump, comprise motor and by motor-driven plunger pump, wherein plunger pump comprises the left pump housing, the right pump housing, pump head and plunger, the left pump housing and the right pump housing are fastened on pump head respectively, the left pump housing and the right pump housing are equipped with pump chamber, the water feeding one-way valve door be connected with pump chamber, water outlet one-way cock and plunger vestibule, plunger vestibule is built with rubber seal, plunger is made up of the plunger axis at the driving breach in the middle of it and its two, the plunger axis at plunger two stretches in the plunger vestibule of the left pump housing and the right pump housing respectively, and be slidably matched with the rubber seal in plunger vestibule respectively, motor shaft is equipped with driving cam means, driving cam means is done to drive with the driving breach of plunger and is coordinated, pump head is provided with inlet channel and water outlet, inlet channel and water outlet are connected with the water feeding one-way valve door of the described pump housing and water outlet one-way cock respectively, it is characterized in that: described plunger vestibule is the straight hole that diameter is suitable with rubber seal external diameter, the pump housing outside the accent of plunger vestibule is provided with sealing board slot, sealing board slot is equipped with the hush panel compressing rubber seal, hush panel is provided with plunger hole, plunger hole tightens and is combined with self lubrication bearing, the plunger axis at described plunger two is slidably fitted on the self lubrication bearing of the described hush panel of the left pump housing and the right pump housing respectively, stretch into described plunger vestibule more respectively and described rubber seal is slidably matched.
The seal ring pressure ring compressing rubber seal can be provided with outside rubber seal in plunger vestibule described in technique scheme, described hush panel reaches the described rubber seal of compression by compressing described seal ring pressure ring, after the plunger axis at described plunger two stretches into respectively and is through described seal ring pressure ring in described plunger vestibule, is slidably matched with described rubber seal respectively again.
Pump head described in technique scheme can be provided with water intake and the water outlet of its inlet channel and water outlet.
Motor described in technique scheme can adopt direct current generator, and is furnished with DC motor speed-regulating device.
The outlet valve or pressure gauge that are connected with its water outlet pump head described in technique scheme can be equipped with.
The beneficial effects of the utility model are: because the pump housing outside the accent of plunger vestibule is provided with sealing board slot, sealing board slot is equipped with the hush panel compressing rubber seal, hush panel is provided with plunger hole, plunger hole tightens and is combined with self lubrication bearing, the plunger axis at plunger two is slidably fitted on the self lubrication bearing of the described hush panel of the left pump housing and the right pump housing respectively, stretch into described plunger vestibule more respectively and described rubber seal is slidably matched, so the plunger axis at plunger two is by the guiding of self lubrication bearing, make plunger good along the reciprocating centering in plunger cavity medial axis, plunger and plunger cavity wall friction can not be caused and cause plunger easily to wear and tear, avoid and occur that plunger pump hydraulic pressure does not reach setting value and the short-life problem of plunger pump, because plunger vestibule is the straight hole that diameter is suitable with rubber seal external diameter, and rubber seal compressed by the accent of hush panel at plunger vestibule, so plunger cavity structure fabrication is simple, assembling and the replacing of rubber seal are convenient, because motor can adopt direct current generator, and adjust motor speed by DC motor speed-regulating device, thus control water-outlet quantity and the hydraulic pressure of plunger pump, so not only save the complex structure being provided with discharge channel and pressure-relief valve and bringing between the water outlet and inlet channel of pump head, and avoid the unnecessary water of water outlet and be back to reactive loss that inlet channel causes and the serious problem of energy consumption.
Due to the water outlet of pump head can be provided with outlet valve, so be not full of water when having air in pump head, plunger pump be when cannot work, can to be drained residual air in pump head by outlet valve, allow in pump head and be full of water, make pump head normally work and to keep pressure stability.
Below in conjunction with drawings and Examples, the utility model will be further described.
Accompanying drawing explanation
The schematic perspective view of a kind of mode of execution of the utility model that Fig. 1 is.
Fig. 2 is the schematic perspective view that the plunger pump in Fig. 1 removes.
Plunger pump turns in Fig. 2 by Fig. 3, and by schematic perspective view that pump head is separated with the left and right pump housing.
Fig. 4 is the schematic perspective view that its left pump housing is taken apart by the left and right pump housing in Fig. 3.
In figure: 1, motor; 2, plunger pump; 3, the left pump housing; 4, the right pump housing; 5, pump head; 6, plunger; 7, water feeding one-way valve door; 8, water outlet one-way cock; 9, plunger vestibule; 10, rubber seal; 11, breach is driven; 12 and 13, plunger axis; 14, inlet channel; 15, water outlet; 16, board slot is sealed; 17, hush panel; 18, plunger hole; 19, self lubrication bearing; 20, seal ring pressure ring; 21, water intake; 22, water outlet; 23, DC motor speed-regulating device.
Embodiment
With reference to Fig. 1 ~ Fig. 4, this durable two-cylinder type plunger pump, comprise motor 1 and by motor-driven plunger pump 2, plunger pump 2 comprises the left pump housing 3, the right pump housing 4, pump head 5 and plunger 6, the left pump housing 3 and the right pump housing 4 are fastened on pump head 5 respectively, the left pump housing 3 and the right pump housing 4 are equipped with pump chamber, the water feeding one-way valve door 7 etc. be connected with pump chamber, water outlet one-way cock 8 grade and plunger vestibule 9 etc., plunger vestibule 9 grade is built with rubber seal 10 etc., plunger 6 is by the plunger axis 12 of the driving breach 11 in the middle of it with its two, 13 are formed, plunger axis 12 grade at plunger 6 two stretches in plunger vestibule 9 of the left pump housing 3 and the right pump housing 4 etc. respectively, and be slidably matched with the rubber seal 10 etc. in plunger vestibule 9 grade respectively, motor 1 axle is equipped with driving cam means (not shown), driving cam means is done to drive with the driving breach 11 of plunger 6 and is coordinated, pump head 5 is provided with inlet channel 14 and water outlet 15, inlet channel 14 and water outlet 15 are connected with water feeding one-way valve door 7 of the described pump housing 3 etc. etc. and water outlet one-way cock 8 etc. respectively, it is characterized in that: described plunger vestibule 9 grade is the straight hole that the external diameter such as diameter and rubber seal 10 is suitable, the pump housing 3 grade outside the accent of plunger vestibule 9 grade is provided with sealing board slot 16 etc., sealing board slot 16 grade is equipped with the hush panel 17 etc. compressing rubber seal 10 grade, hush panel 17 grade is provided with plunger hole 18 etc., plunger hole 18 etc. tightens and is combined with self lubrication bearing 19 etc., plunger axis 12 grade at described plunger 6 two is slidably fitted on self lubrication bearing 19 of the described hush panel 17 of the left pump housing 3 and the right pump housing 4 etc. etc. respectively, stretch into described plunger vestibule 9 grade and described rubber seal 10 etc. to be more respectively slidably matched.
In addition, the seal ring pressure ring 20 compressing rubber seal 10 is also provided with outside rubber seal 10 in plunger vestibule 9, described hush panel 17 reaches the described rubber seal 10 of compression by compressing described seal ring pressure ring 20, after plunger axis 12 grade at described plunger 6 two stretches into respectively in described plunger vestibule 9 and is through described seal ring pressure ring 20, is slidably matched with described rubber seal 10 respectively again.Pump head is provided with water intake 21 and the water outlet 22 of its inlet channel 14 and water outlet 15.Motor 1 adopts direct current generator, and is furnished with DC motor speed-regulating device 23.
Use, when connecting the power supply of motor 1, motor 1 is by the driving breach 11 of the driving cam means drive plunger 6 on it, plunger 6 is made to do a left side, right to-and-fro motion, and then change volume and the water pressure of pump chamber in the left pump housing 3 and the right pump housing 4, make inlet channel 14 on pump head 5 through the pump chamber water inlet of water feeding one-way valve door 7 grade alternately left on the pump housing 3 and the right pump housing 4, after water is pressurizeed by plunger 6 in the pump chamber of the left pump housing 3 and the right pump housing 4, supply water alternately to the water outlet 15 on pump head 5 through water outlet one-way cock 8 grade, the axle of motor 1 often rotates a circle, plunger 6 just can do secondary merit back and forth, order about the left pump housing 3 and the right pump housing 4 respectively supplies water once to water outlet 15, namely plunger pump 2 supplies water secondary, when needing water-outlet quantity and the hydraulic pressure adjusting plunger pump 2 water outlet 22, rotate the knob on DC motor speed-regulating device 23, easy to operate.
Claims (4)
1. a durable two-cylinder type plunger pump, comprise motor and by motor-driven plunger pump, wherein plunger pump comprises the left pump housing, the right pump housing, pump head and plunger, the left pump housing and the right pump housing are fastened on pump head respectively, the left pump housing and the right pump housing are equipped with pump chamber, the water feeding one-way valve door be connected with pump chamber, water outlet one-way cock and plunger vestibule, plunger vestibule is built with rubber seal, plunger is made up of the plunger axis at the driving breach in the middle of it and its two, the plunger axis at plunger two stretches in the plunger vestibule of the left pump housing and the right pump housing respectively, and be slidably matched with the rubber seal in plunger vestibule respectively, motor shaft is equipped with driving cam means, driving cam means is done to drive with the driving breach of plunger and is coordinated, pump head is provided with inlet channel and water outlet, inlet channel and water outlet are connected with the water feeding one-way valve door of the described pump housing and water outlet one-way cock respectively, it is characterized in that: described plunger vestibule is the straight hole that diameter is suitable with rubber seal external diameter, the pump housing outside the accent of plunger vestibule is provided with sealing board slot, sealing board slot is equipped with the hush panel compressing rubber seal, hush panel is provided with plunger hole, plunger hole tightens and is combined with self lubrication bearing, the plunger axis at described plunger two is slidably fitted on the self lubrication bearing of the described hush panel of the left pump housing and the right pump housing respectively, stretch into described plunger vestibule more respectively and described rubber seal is slidably matched.
2. by durable two-cylinder type plunger pump according to claim 1, it is characterized in that outside the rubber seal in described plunger vestibule, being provided with the seal ring pressure ring compressing rubber seal, described hush panel reaches the described rubber seal of compression by compressing described seal ring pressure ring, after the plunger axis at described plunger two stretches into respectively and is through described seal ring pressure ring in described plunger vestibule, is slidably matched with described rubber seal respectively again.
3., by the durable two-cylinder type plunger pump described in claim 1 or 2, it is characterized in that described motor adopts direct current generator, and be furnished with DC motor speed-regulating device.
4., by durable two-cylinder type plunger pump described in claim 1 or 2, it is characterized in that described pump head is equipped with the outlet valve or pressure gauge that are connected with its water outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420346951.XU CN204061135U (en) | 2014-06-27 | 2014-06-27 | A kind of durable two-cylinder type plunger pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420346951.XU CN204061135U (en) | 2014-06-27 | 2014-06-27 | A kind of durable two-cylinder type plunger pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204061135U true CN204061135U (en) | 2014-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420346951.XU Active CN204061135U (en) | 2014-06-27 | 2014-06-27 | A kind of durable two-cylinder type plunger pump |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116538061A (en) * | 2023-06-02 | 2023-08-04 | 深圳市益思精密五金有限公司 | Integrated plunger pump and working method thereof |
-
2014
- 2014-06-27 CN CN201420346951.XU patent/CN204061135U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116538061A (en) * | 2023-06-02 | 2023-08-04 | 深圳市益思精密五金有限公司 | Integrated plunger pump and working method thereof |
| CN116538061B (en) * | 2023-06-02 | 2023-10-20 | 深圳市益思精密五金有限公司 | Integrated plunger pump and working method thereof |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |