CN202833153U - Compact-structure type pump body structure for gear pump - Google Patents
Compact-structure type pump body structure for gear pump Download PDFInfo
- Publication number
- CN202833153U CN202833153U CN 201220412481 CN201220412481U CN202833153U CN 202833153 U CN202833153 U CN 202833153U CN 201220412481 CN201220412481 CN 201220412481 CN 201220412481 U CN201220412481 U CN 201220412481U CN 202833153 U CN202833153 U CN 202833153U
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- China
- Prior art keywords
- gear pump
- pump
- body structure
- protecgulum
- pump body
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to the technical field of gear pumps, in particular to a compact-structure type pump body structure for a gear pump. The compact-structure type pump body structure for the gear pump comprises a body, a front cover and a rear cover. The front cover and the rear cover are respectively connected with two ends of the body, a sleeved-connection hole which is used for a main shaft to penetrate through is formed in the front cover, and an oil inlet hole and an oil outlet hole are respectively formed in two lateral walls of the body. Installation holes which are used for installing of auxiliary shafts are formed in the body and the rear cover. Two installation holes which are used for installing of the auxiliary shafts are formed in a pump body, so that the pump body partly plays a role of bearing for the auxiliary shafts, the thickness of a wagon-flow allocation tray is greatly reduced, and therefore, the whole size of the compact-structure type pump body structure for the gear pump is reduced. The compact-structure type pump body structure for the gear pump is small in occupied equipment space and convenient to install.
Description
Technical field
The utility model relates to the gear pump technical field, refers in particular to a kind of compact type gear 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.
The gear pump structure is relatively simple, the citation form that is it is exactly the intermeshing rotations in a close-fitting housing of two measure-alike gears, the inner classes of this housing is like the figure of eight, and two gears are contained in the inside, and the external diameter of gear and both sides and housing closely cooperate.Come from the material of extruder in the middle of suction port enters two gears, and be full of this space, along with the rotation of tooth is moved along housing, when two teeth mesh, discharge at last, thereby mechanical energy is transformed into the pressure energy of liquid.
Because thrust plate need to carry countershaft, therefore the thickness of thrust plate is larger, thereby cause the overall structure volume of gear pump larger, the space that takies equipment is larger, is not easy to the installation of gear pump and fixing.
Summary of the invention
The technical problems to be solved in the utility model provide a kind of simple in structure, take up room compact type gear pump pump body structure less.
In order to solve the problems of the technologies described above, the utility model adopts following technological scheme: a kind of compact type gear pump pump body structure, comprise body, protecgulum and bonnet, this protecgulum is connected with bonnet with the two ends of body and is connected, protecgulum offers the sleeve joint hole that passes for main shaft, and oil inlet hole and oil outlet are opened in respectively the two side of body; Described body and bonnet all offer the mounting hole for the installing countershaft.
Wherein, described protecgulum and this body by integral forming.
Wherein, be equiped with outside framework oil seal in the described sleeve joint hole.
Wherein, be equiped with for the fixing interior snap ring of outside framework oil seal snap ring and outside framework oil seal butt in this in the described sleeve joint hole.
Wherein, described bonnet is provided with positioning bead, and described body offers positioning hole, and half of positioning bead embeds in this positioning hole.
Wherein, described protecgulum and bonnet all offer groove, are equiped with seal ring in this groove, the end butt of sealing circle and described body.
Wherein, place, the outer of described protecgulum offers at least two screws.
Wherein, be embedded with oilite bushing in the described mounting hole.
The beneficial effects of the utility model are: the utility model provides a kind of compact type gear pump pump body structure, comprise body, protecgulum and bonnet, this protecgulum is connected with bonnet with the two ends of body and is connected, protecgulum offers the sleeve joint hole that passes for main shaft, and oil inlet hole and oil outlet are opened in respectively the two side of body; Described body and bonnet all offer the mounting hole for the installing countershaft.The pump housing of the present utility model offers two mounting holes for the installing countershaft, make the pump housing play most carrying effect to countershaft, greatly reduced the thickness of thrust plate, thereby it is big or small with the overall dimensions of pump body structure to reduce the compact type gear pump, the space of occupying equipment is less, the convenient installation.
Description of drawings
Fig. 1 is a kind of embodiment's of the utility model main 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 compact type gear pump pump body structure, comprise body 1, protecgulum 2 and bonnet 3, this protecgulum 2 is connected with bonnet and is connected with the two ends of body 1 respectively, protecgulum 2 offers the sleeve joint hole 4 that passes for main shaft, and oil inlet hole 5 and oil outlet 6 are opened in respectively the two side of body 1; Described body 1 and bonnet 3 all offer the mounting hole 7 for the installing countershaft.The pump housing of the present utility model offers two mounting holes 7, the two ends of countershaft embed respectively in two mounting holes 7, make the pump housing play most carrying effect to countershaft, greatly reduced the thickness of thrust plate, thereby it is big or small with the overall dimensions of pump body structure to reduce the compact type gear pump, the space of occupying equipment is less, the convenient installation.
The described pump housing of the present embodiment comprises body 1, protecgulum 2 and bonnet 3, this protecgulum 2 is connected with bonnet and is connected with the sealed at both ends of body 1 respectively, protecgulum 2 offers the sleeve joint hole 4 that the main shaft for gear pump passes, and oil inlet hole 5 and oil outlet 6 lay respectively at the two side of body 1; Described two mounting holes 7 lay respectively at body 1 and bonnet 3, to reduce difficulty of processing and the assembling difficulty of the pump housing, further reduce the cost of production that the compact type gear pump is used pump body structure.
See Fig. 4, described protecgulum 2 and the body 1 of the present embodiment are one-body molded, removed the installation procedure between protecgulum 2 and the body 1 from, need not the installation precision between protecgulum 2 and the body 1 and sealability are carried out extra adjustment, improve the packaging efficiency of gear pump, thereby further reduced its cost of production.
See Fig. 4, be equiped with outside framework oil seal 8 in the described sleeve joint hole 4 of the present embodiment, described main shaft passes this outside framework oil seal 8.Under the prerequisite that does not affect described main shaft rotation, guarantee the sealability of main shaft and protecgulum 2 attachment portions, avoid oil pressure to reveal and befouling environment, practicability is stronger.
Be equiped with in the described sleeve joint hole 4 of the present embodiment for the fixing interior snap ring 9 of outside framework oil seal 8, snap ring 9 and outside framework oil seal 8 butts in this greatly reduce the installation difficulty of outside framework oil seal 8, have improved the efficiency of assembling of structure compact gear pump with pump body structure.
See Fig. 4, the described bonnet 3 of the present embodiment is provided with positioning bead 10, and described body 1 offers positioning hole, and half of positioning bead 10 embeds in this positioning hole.In assembling process, can guarantee the highi degree of accuracy assembling between protecgulum 2 and bonnet 3 and the body 1 in half the embedding positioning hole with positioning bead 10, further reduce the compact type gear pump with the assembling difficulty of pump body structure, improve its manufacturing efficiency.
Described protecgulum 2 and the bonnet 3 of the present embodiment all offer groove, are equiped with seal ring 11 in this groove, and the end butt of sealing circle 11 and described body 1 to improve the sealability of the pump housing, avoids hydraulic oil to reveal and befouling environment.
Place, the outer of the described protecgulum 2 of the present embodiment offers four screws 12, so that be bolted fixing with pump body structure and motor or miscellaneous equipment described compact type gear pump.Certainly, the concrete quantity of screw 12 can also be other numerical value, gets final product according to concrete setting of the actual demand of assembling.
Be embedded with oilite bushing 13 in the described mounting hole 7 of the present embodiment, the end of the countershaft of gear pump is set in the oilite bushing 13, the end of countershaft and the surface friction drag between the mounting hole 7 have been reduced on the one hand, reduce on the other hand the end of countershaft and the wearing and tearing between the mounting hole 7, greatly prolonged the physical life of structure compact gear pump with pump body structure.
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 (8)
1. compact type gear pump pump body structure, comprise body (1), protecgulum (2) and bonnet (3), this protecgulum (2) is connected 3 with bonnet) respectively the two ends with body (1) be connected, protecgulum (2) offers the sleeve joint hole (4) that passes for main shaft, oil inlet hole (5) and oil outlet (6) are opened in respectively the two side of body (1), it is characterized in that: described body (1) and bonnet (3) all offer the mounting hole (7) for the installing countershaft.
2. compact type gear pump pump body structure according to claim 1, it is characterized in that: described protecgulum (2) and body (1) are one-body molded.
3. compact type gear pump pump body structure according to claim 1 is characterized in that: be equiped with outside framework oil seal (8) in the described sleeve joint hole (4).
4. compact type gear pump pump body structure according to claim 3 is characterized in that: be equiped with for the fixing interior snap ring (9) of outside framework oil seal (8) snap ring (9) and outside framework oil seal (8) butt in this in the described sleeve joint hole (4).
5. compact type gear pump pump body structure according to claim 1, it is characterized in that: described bonnet (3) is provided with positioning bead (10), and described body (1) offers positioning hole, and half of positioning bead (10) embeds in this positioning hole.
6. compact type gear pump pump body structure according to claim 1, it is characterized in that: described protecgulum (2) and bonnet (3) all offer groove, be equiped with seal ring (11) in this groove, the end butt of sealing circle (11) and described body (1).
7. compact type gear pump pump body structure according to claim 1 is characterized in that: the place, outer of described protecgulum (2) offers at least two screws (12).
8. compact type gear pump pump body structure according to claim 1 is characterized in that: be embedded with oilite bushing (13) in the described mounting hole (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220412481 CN202833153U (en) | 2012-08-20 | 2012-08-20 | Compact-structure type pump body structure for gear pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220412481 CN202833153U (en) | 2012-08-20 | 2012-08-20 | Compact-structure type pump body structure for gear pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202833153U true CN202833153U (en) | 2013-03-27 |
Family
ID=47944874
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220412481 Expired - Fee Related CN202833153U (en) | 2012-08-20 | 2012-08-20 | Compact-structure type pump body structure for gear pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202833153U (en) |
-
2012
- 2012-08-20 CN CN 201220412481 patent/CN202833153U/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 |