CN202833154U - Pump structure used for duplex variable pump - Google Patents
Pump structure used for duplex variable pump Download PDFInfo
- Publication number
- CN202833154U CN202833154U CN 201220412646 CN201220412646U CN202833154U CN 202833154 U CN202833154 U CN 202833154U CN 201220412646 CN201220412646 CN 201220412646 CN 201220412646 U CN201220412646 U CN 201220412646U CN 202833154 U CN202833154 U CN 202833154U
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- pump body
- pump
- variable displacement
- sidepiece
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Abstract
The utility model relates to the technical field of vane pumps, in particular to a pump structure used for a duplex variable pump. The pump structure comprises a first pump body and a second pump body, wherein the first pump body and the second pump body are both provided with an oil inlet and an oil outlet, the first pump body and the second pump body are formed integrally, the side portion of the first pump body is provided with a back cover, the side portion of the second pump body is provided with a front cover, and a shaft hole for penetration of a rotating shaft is formed in the front cover; and the first pump body and the second pump body are both provided with sleeve holes used for being in pivot joint with the rotating shaft. According to the pump structure, the first pump body and the second pump body can be assembled into two single vane pumps, flow control for two hydraulic paths can be achieved conveniently through the two single vane pumps, the same motor drives the two single vane pumps, and the pump structure has the advantages of being simple and compact in structure, low in cost and convenient to install, and is strong in practicability.
Description
Technical field
The utility model relates to the vane pump technical field, refers in particular to a kind of duplex variable displacement pump pump body structure.
Background technique
Hydraulic-pressure pump is comprised of the pump housing, rectangular fuel tank, pressure handle, ultra-pressure wired rubber tube four major parts, the dynamical element of hydraulic system, its effect is the pressure energy that the mechanical energy of prime mover is converted to liquid, refers to the oil pump in the hydraulic system, and it provides power to whole hydraulic system.The structural type of oil hydraulic pump generally has gear pump, vane pump and plunger pump.
Single acting vane pump is comprised of stator, rotor, blade, oil distribution casing, transmission shaft, the pump housing, end cap etc., between stator and the rotor eccentric distance e is arranged, blade is contained in the rotor, and can in groove, slide, when rotor turns round, because the effect of centrifugal force makes the outer end of blade abut against stator inner wall.
Variable vane pump refers to the oil hydraulic pump that discharge capacity can be regulated, it is by changing eccentric distance e and the eccentric direction of single acting vane pump rotor and stator, change oil transportation amount and oil transportation direction, become variable vane pump, this adjusting can be by manually realizing, also can be by automatically realizing, wherein limited pressure variable vane pump is a kind of dynamical element that utilizes load variations automatically to realize Flow-rate adjustment, its effect is after pressure is elevated to the restriction pressure of preset, flow reduces, and therefore is used widely in practice.
Existing vane pump is generally monomer structure, and adopting independent motor that the vane pump of monomer structure is reversed driving, hydraulic equipment has a plurality of oil hydraulic circuits usually, just needs to be equipped with a plurality of vane pumps and a plurality of drive motor, thereby cause the complex structure of hydraulic equipment, manufacture cost is higher.
Summary of the invention
The technical problems to be solved in the utility model provides a kind of two variable vane pumps can being combined, and can carry out respectively to two oil hydraulic circuits the duplex variable displacement pump pump body structure of flow control.
In order to solve the problems of the technologies described above, the utility model adopts following technological scheme: a kind of duplex variable displacement pump pump body structure, comprise the first pump body and the second pump body, the first pump body and the second pump body all offer filler opening and oil outlet, described the first pump body and second this body by integral forming of pump, the sidepiece of the first pump body is equiped with bonnet, and the sidepiece of the second pump body is equiped with protecgulum, and this protecgulum offers the axis hole that passes for rotating shaft; Described the first pump body and the second pump body all offer for the sleeve joint hole that articulates rotating shaft.
Wherein, be equiped with oilite bushing in the described sleeve joint hole.
Wherein, described the first pump body and the second pump body all offer drain tap and are used for the cavity volume of installing pressure regulator valve, and drain tap is communicated with cavity volume.
Wherein, be equiped with bearing in the described axis hole.
Wherein, the sidepiece of the sidepiece of described the first pump body and the second pump body all is bolted with the noise adjusting bolt.
Wherein, the sidepiece of the sidepiece of described the first pump body and the second pump body all is equiped with dust cover, and described noise adjusting bolt penetrates this dust cover.
The beneficial effects of the utility model are: the utility model provides a kind of duplex variable displacement pump pump body structure, the first pump body and the second pump body can be assembled into respectively two monomer vane pumps, when assembling, first described protecgulum and bonnet are pulled down, again the members such as rotating shaft, rotor, stator are packed into the first pump body and the second pump body, at last the sealing of protecgulum and bonnet is installed and get final product, the assembly working simple and fast has improved the packaging efficiency of variable displacement pump; The first pump body and second this body by integral forming of pump, can guarantee effectively that described duplex variable displacement pump keeps higher coaxality and machining accuracy with a plurality of sleeve joint holes in the pump body structure, need not the position of the first pump body and the second pump body is debugged in the overall package process, installation precision is high.Two monomer vane pumps are so that carry out respectively flow control to two oil hydraulic circuits, and these two monomer vane pumps adopt same motor driving to get final product, and have advantages of simple and compact for structure, with low cost, easy for installation, practical.
Description of drawings
Fig. 1 is the utility model master TV structure schematic diagram.
Fig. 2 is the left TV structure schematic diagram of the utility model.
Fig. 3 is the cross-sectional view of A-A among Fig. 1.
Fig. 4 is the cross-sectional view of B-B among Fig. 2.
Embodiment
For the ease of those skilled in the art's understanding, below in conjunction with embodiment and accompanying drawing the utility model is further described, the content that mode of execution is mentioned not is to restriction of the present utility model.
As shown in Figures 1 to 4, a kind of duplex variable displacement pump pump body structure, comprise the first pump body 1 and the second pump body 2, the first pump body 1 and the second pump body 2 all offer filler opening and oil outlet 3, described the first pump body 1 and the second pump body 2 are one-body molded, the sidepiece that the sidepiece of the first pump body 1 is equiped with bonnet 4, the second pump bodies 2 is equiped with protecgulum 5, and this protecgulum 5 offers the axis hole 6 that passes for rotating shaft; Described the first pump body 1 and the second pump body 2 all offer for the sleeve joint hole 7 that articulates rotating shaft.
The first pump body 1 of the present utility model and the second pump body 2 can be assembled into respectively two monomer vane pumps, when assembling, first described protecgulum 5 and bonnet 4 are pulled down, again the members such as rotating shaft, rotor, stator are packed into the first pump body 1 and the second pump body 2, at last protecgulum 5 and bonnet 4 sealing installations are got final product, the assembly working simple and fast has improved the packaging efficiency of variable displacement pump; The first pump body 1 and the second pump body 2 are one-body molded, can guarantee effectively that described duplex variable displacement pump keeps higher coaxality and machining accuracy with a plurality of sleeve joint holes 7 in the pump body structure, need not the position of the first pump body 1 and the second pump body 2 is debugged in the overall package process, installation precision is high.Two monomer vane pumps are so that carry out respectively flow control to two oil hydraulic circuits, and these two monomer vane pumps adopt same motor driving to get final product, and have advantages of simple and compact for structure, with low cost, easy for installation, practical.
See Fig. 4, be equiped with oilite bushing 8 in the described sleeve joint hole 7 of the present embodiment, rotating shaft is socketed in the oilite bushing 8, reduced on the one hand the surface friction drag between rotating shaft and the sleeve joint hole 7, reduce on the other hand the wearing and tearing between rotating shaft and the sleeve joint hole 7, greatly prolonged the physical life of duplex variable displacement pump with pump body structure.
The described first pump body 1 of the present embodiment and the second pump body 2 all offer drain tap 9 and are used for the cavity volume 10 of installing pressure regulator valve, and drain tap 9 is communicated with cavity volume 10.The pressure regulator valve of vane pump is installed in the cavity volume 10, drain tap 9 is communicated with pressure regulator valve, when the load of vane pump drives hydraulic pressure above specified hydraulic pressure, the output hydraulic pressure of vane pump can be reduced to the setting hydraulic pressure strength by pressure regulator valve, avoid this vane pump or other hydraulic actuator are caused damage, stability is higher.
Be equiped with bearing 11 in the described axis hole 6 of the present embodiment, this bearing 11 is passed in the rotating shaft of vane pump, the enabling capabilities of one side Effective Raise protecgulum 5 countershafts, can greatly reduce on the other hand the wearing and tearing between protecgulum 5 and the rotating shaft, further prolong the working life that described duplex variable displacement pump is used pump body structure.
The sidepiece of the described first pump body 1 of the present embodiment and the sidepiece of the second pump body 2 all are bolted with noise adjusting bolt 12.The inner of this noise adjusting bolt 12 be positioned at the intrinsic stator butt of pump.Because rotor rotates in stator interior, noise adjusting bolt 12 is used for the position, the left and right sides of stator is fixed, and prevents that stator from producing noise in the internal vibration of pump body; In addition, after the throw of eccentric size between rotor and the stator is adjusted as required, suitably regulate the near lower degree of noise that noise adjusting bolt 12 can produce stator again, easy to adjust, noise pollution is less.
The sidepiece of the described first pump body 1 of the present embodiment and the sidepiece of the second pump body 2 all are equiped with dust cover 13, described noise adjusting bolt 12 penetrates this dust cover 13, to prevent that dust or impurity in the external environment from entering into the wearing and tearing that cause its internals in the pump body by noise adjusting bolt 12, practicability is stronger.
Above-described embodiment is the better implementation of the utility model, in addition, all right alternate manner realization of the utility model, any apparent replacement is all within protection domain of the present utility model under the prerequisite that does not break away from the present utility model design.
Claims (6)
1. duplex variable displacement pump pump body structure, comprise the first pump body (1) and the second pump body (2), the first pump body (1) and the second pump body (2) all offer filler opening and oil outlet (3), it is characterized in that: described the first pump body (1) is one-body molded with the second pump body (2), the sidepiece of the first pump body (1) is equiped with bonnet (4), the sidepiece of the second pump body (2) is equiped with protecgulum (5), and this protecgulum (5) offers the axis hole (6) that passes for rotating shaft; Described the first pump body (1) and the second pump body (2) all offer for the sleeve joint hole (7) that articulates rotating shaft.
2. duplex variable displacement pump pump body structure according to claim 1 is characterized in that: be equiped with oilite bushing (8) in the described sleeve joint hole (7).
3. duplex variable displacement pump pump body structure according to claim 1, it is characterized in that: described the first pump body (1) and the second pump body (2) all offer drain tap (9) and are used for the cavity volume (10) of installing pressure regulator valve, and drain tap (9) is communicated with cavity volume (10).
4. duplex variable displacement pump pump body structure according to claim 1 is characterized in that: be equiped with bearing (11) in the described axis hole (6).
5. duplex variable displacement pump pump body structure according to claim 1, it is characterized in that: the sidepiece of the sidepiece of described the first pump body (1) and the second pump body (2) all is bolted with noise adjusting bolt (12).
6. duplex variable displacement pump pump body structure according to claim 5, it is characterized in that: the sidepiece of described the first pump body (1) and the second pump body (2) is equiped with dust cover (13), and described noise adjusting bolt (12) penetrates this dust cover (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220412646 CN202833154U (en) | 2012-08-20 | 2012-08-20 | Pump structure used for duplex variable pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220412646 CN202833154U (en) | 2012-08-20 | 2012-08-20 | Pump structure used for duplex variable pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202833154U true CN202833154U (en) | 2013-03-27 |
Family
ID=47944875
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220412646 Expired - Fee Related CN202833154U (en) | 2012-08-20 | 2012-08-20 | Pump structure used for duplex variable pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202833154U (en) |
-
2012
- 2012-08-20 CN CN 201220412646 patent/CN202833154U/en not_active Expired - Fee Related
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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: 20130327 Termination date: 20140820 |
|
| EXPY | Termination of patent right or utility model |