CN202718864U - Full hydraulic floating no-sealing two-way shaft sleeve - Google Patents
Full hydraulic floating no-sealing two-way shaft sleeve Download PDFInfo
- Publication number
- CN202718864U CN202718864U CN 201220442563 CN201220442563U CN202718864U CN 202718864 U CN202718864 U CN 202718864U CN 201220442563 CN201220442563 CN 201220442563 CN 201220442563 U CN201220442563 U CN 201220442563U CN 202718864 U CN202718864 U CN 202718864U
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- Prior art keywords
- axle sleeve
- oil
- shaft sleeve
- sleeve body
- valve
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Abstract
The utility model discloses a full hydraulic floating no-sealing two-way shaft sleeve which comprises an aluminium sleeve, a bush and a shaft sleeve body. The shaft sleeve body is provided with two through holes which penetrate through the shaft sleeve along the thickness direction of the shaft sleeve body. An oil outlet is arranged between the two through holes on the shaft sleeve body, a cavity is arranged inside the shaft sleeve body, the left end of the cavity is provided with a valve seat, the right end of the cavity is provided with a valve sleeve, and a valve cavity is arranged inside the valve sleeve. a first oil channel is arranged on the valve seat, and a second oil channel and a third oil channel are arranged on the shaft sleeve body. The third oil channel is communicated with the oil outlet, the first oil channel, the second oil channel and the third oil channel are all communicated with the valve cavity inside the valve sleeve, and a steel ball is arranged inside the valve cavity. The full hydraulic floating no-sealing two-way shaft valve has the advantages that the shaft sleeve is enabled to be effectively always attached on the end face of a gear, a sealing structure is removed, the volumetric efficiency of a hydraulic pump is improved, starting torque is lowered, free conversion of a high pressure area and a low pressure area is achieved, and the like.
Description
Technical field
The utility model relates to a kind of all-hydraulic unsteady without the sealing two-way axle sleeve.
Background technique
Hydraulic gear pump is to rely on formed swept volume variation and the mobile rotary pump of carrying liquid or making it supercharging between the pump housing and engaging gear, forms two enclosed spaces by two gears, the pump housing, axle sleeve and front and rear covers.
In the prior art, axle sleeve inside does not have oil duct (as shown in Figure 5 and Figure 6), thereby hydraulic gear oil pump/motor needs to solve along with the raising of pressure rating faces a following difficult problem: the 1) validity of internal seal structure; 2) because axle sleeve back side hydraulic thrust is not enough and inhomogeneous, only have the decrement of increase Sealing and the withstand voltage properties of sealing material, so just reduced greatly the mechanical efficiency of gear oil pump (motor), do not meet the design concept of energy-conserving and environment-protective.
The model utility content
The utility model is the deficiency that exists in the above-mentioned prior art for avoiding, and provides a kind of all-hydraulic unsteady without the sealing two-way axle sleeve, so that axle sleeve can effectively be fitted on the gear face all the time, the high-efficiency operation of assurance gear oil pump.
The utility model be the technical solution problem by the following technical solutions.
All-hydraulic unsteady without the sealing two-way axle sleeve, its structural feature is to comprise aluminium cover, lining and axle sleeve body; Described axle sleeve body is provided with two through holes that penetrate described axle sleeve body along described axle sleeve body thickness direction; On a side of described axle sleeve body, between two through holes, be provided with oil outlet; The axle sleeve body is provided with on the side of oil outlet and also is provided with oil groove, and described oil groove communicates with described oil outlet; Be provided with cavity within the described axle sleeve body, the left end of described cavity is provided with valve seat, and the right-hand member of described cavity is provided with valve pocket, is provided with valve pocket within the described valve pocket; Be provided with the first oil duct on the described valve seat; Be provided with the second oil duct and the 3rd oil duct on the described axle sleeve body; Described the 3rd oil duct is connected with described oil outlet; Described the first oil duct, the second oil duct and the 3rd oil duct all communicate with described valve pocket within the described valve pocket, are provided with steel ball within the described valve pocket.
Compared with the prior art, the utility model beneficial effect is embodied in:
At the back side of axle sleeve the hydraulic pressure oil groove is set, oil groove communicates with oil outlet, so that high pressure oil can enter oil groove, the friction pair that can effectively improve gear face and axle sleeve front forms, the uneven moment of torsion that exists in the existing axle sleeve design method is significantly reduced, even can realize the elimination of uneven moment of torsion.The equilibrium of hydraulic thrust, make product can remove internal seal structure, guarantee that the product performance that product can not produce because high temperature, high pressure cause sealing configuration to lose efficacy descend, not only improve the volumetric efficiency of product but also reduce starting torque, obtain higher mechanical efficiency.
Realized that interval the arranging of shuttle valve of the high low pressure of axle sleeve hydraulic oil can enter axle sleeve back side oil groove from different directions, guaranteed simultaneously not ganging up of height nip, can realize freely changing of height nip, thereby realized the two-way function of product.
Of the present utility model all-hydraulic unsteady without the sealing two-way axle sleeve, having can be so that axle sleeve can effectively be fitted on the gear face, saves sealing configuration, improves the volumetric efficiency of oil hydraulic pump and reduce starting torque, realize the advantages such as freely changing of height nip all the time, performance, reliability and working life that can Effective Raise gear oil pump/motor.
Description of drawings
Fig. 1 is all-hydraulic unsteady plan view without the sealing two-way axle sleeve of the present utility model.
Fig. 2 is the A-A sectional view among Fig. 1.
Fig. 3 is all-hydraulic unsteady A-A sectional view during without the passing through the first oil duct and be the 3rd oil duct input high pressure oil of sealing two-way axle sleeve of the present utility model.
Fig. 4 is all-hydraulic unsteady A-A sectional view during without the passing through the second oil duct and be the 3rd oil duct input high pressure oil of sealing two-way axle sleeve of the present utility model.
Fig. 5 is the plan view of the axle sleeve of prior art.
Fig. 6 is the B-B sectional view among Fig. 5.
Label in accompanying drawing 1～accompanying drawing 6: 1 aluminium cover, 2 linings, 3 axle sleeve bodies, 4 through holes, 5 oil outlets, 6 oil grooves, 7 cavitys, 8 valve seats, 9 valve pockets, 10 valve pockets, 11 first oil ducts, 12 second oil ducts, 13 the 3rd oil ducts, 14 steel balls, 15 gear fitting surfaces, the 16 axle sleeve back sides.
Below pass through embodiment, and the utility model is described in further detail by reference to the accompanying drawings.
Embodiment
Referring to figure accompanying drawing 1～accompanying drawing 4, all-hydraulic unsteady without the sealing two-way axle sleeve, comprise aluminium cover 1, lining 2 and axle sleeve body 3; Described axle sleeve body 3 is provided with two through holes 4 that penetrate described axle sleeve body 3 along described axle sleeve body thickness direction; On a side of described axle sleeve body 3, between two through holes 4, be provided with oil outlet 5; Axle sleeve body 3 is provided with on the side of oil outlet 5 and also is provided with oil groove 6, and described oil groove 6 communicates with described oil outlet 5; Be provided with cavity 7 within the described axle sleeve body 3, the left end of described cavity 7 is provided with valve seat 8, and the right-hand member of described cavity 7 is provided with valve pocket 9, is provided with valve pocket 10 within the described valve pocket 9; Be provided with the first oil duct 11 on the described valve seat 8; Be provided with the second oil duct 12 and the 3rd oil duct 13 on the described axle sleeve body 3; Described the 3rd oil duct 13 is connected with described oil outlet 5; Described the first oil duct 11, the second oil duct 12 and the 3rd oil duct 13 all communicate with described valve pocket 10 within the described valve pocket 9, are provided with steel ball 14 within the described valve pocket 10.
The profile of described axle sleeve is the tabular body of 8-shaped, and respectively there is a through hole axle sleeve upper and lower, along the thickness direction continuous boss body of axle sleeve.The gear shaft of active and driven gear respectively passes a through hole, so that axle sleeve can be enclosed within on two gears.Matching with the end face of gear in a side of axle sleeve, is gear fitting surface 15; Another side of axle sleeve deviates from gear, is the axle sleeve back side.Described oil outlet is arranged on the axle sleeve back side 16, and the axle sleeve back side 16 also is provided with oil groove, and the hydraulic oil that flows out in the described oil outlet enters within the oil groove.
Because the profile of axle sleeve is 8-shaped, be depressed part in the centre of the described axle sleeve left and right sides, also be respectively equipped with a hydraulic fluid port at these two depression positions, these two hydraulic fluid ports are connected with the first oil duct and the second oil duct respectively, so that the pressure oil of the axle sleeve left and right sides all can enter the 3rd oil duct by valve pocket.When the left and right sides of axle sleeve pressure not simultaneously, both sides are respectively zone of high pressure and low pressure area.
Because the effect of oil pressure, steel ball is pushed to a side of valve pocket, thereby can block the first oil duct or the second oil duct, so that high pressure oil enters within the oil groove at the axle sleeve back side from the 3rd oil duct through oil outlet, leaving holohedral symmetry hydraulic pressure oil groove at the axle sleeve back side makes the side shaft cover back side produce a uniform hydraulic thrust, reach effect with the complete dynamic equalization of the positive hydraulic thrust of axle sleeve by controlling its area, guarantee in the situation of removing internal seal structure, gear oil pump/motor at work axle sleeve also can effectively be fitted on the gear face all the time, eliminate high temperature, descend because seal failure causes product performance under the high pressure, guarantee the high-efficiency operation of gear oil pump/motor.The parts such as described valve seat, steel ball and valve pocket consist of a shuttle valve.At the built-in shuttle valve of axle sleeve inner height nip, can realize that hydraulic oil enters axle sleeve back side oil groove from different directions, guarantee simultaneously not ganging up of height nip, can realize freely changing of gear oil pump/motor height nip, thereby realize two-way function.
Leave full symmetric hydraulic pressure oil groove at the axle sleeve back side, without seal groove, guaranteeing all has uniform hydraulic thrust to make all the time being fitted on the gear face of balance of axle sleeve downwards in different rotary, guarantee the high-efficiency operation of gear oil pump/motor under high pressure, high speed, have higher volumetric efficiency and mechanical efficiency, reduce the energy loss of main frame.At the interval built-in shuttle valve of the inner high low pressure of axle sleeve, to realize that hydraulic oil can enter axle sleeve back side oil groove from different directions, guarantee simultaneously not ganging up of height nip, can realize freely changing of height nip, thereby realize two-way function.
Setting by the hydraulic pressure oil groove, make the axle sleeve back side produce balanced hydraulic thrust, thereby axle sleeve is more effectively on the end face that fits to gear of balance, guarantee the efficient output of gear oil pump/motor, the setting of cancellation sealing configuration, the starting torque of gear oil pump/motor is reduced greatly, obtain higher working efficiency.
Setting by shuttle valve, make the high low pressure chamber fluid of gear oil pump/motor when different rotation direction, realize the just rapid switching of nip, guaranteed that high pressure oil can arrive the hydraulic pressure oil groove at the axle sleeve back side by the first oil duct or the second oil duct all the time through the 3rd oil duct, thereby formed balanced hydraulic thrust.Because the setting of shuttle valve has guaranteed the at any time conversion of axle sleeve height nip under different rotation direction operating modes.
Using at the gear oil pump/motor of axle sleeve of the present utility model makes the gear oil pump/motor not only improve volumetric efficiency but also reduce starting torque, and obtains higher mechanical efficiency, thereby reduces the specific energy consumption of main frame; The internal structure design more tends to balance, and has greatly prolonged the working life of gear oil pump (motor), has higher reliability, has realized the design concept of hydraulic system energy-conserving and environment-protective.
Claims (1)
1. all-hydraulic unsteadyly it is characterized in that without the sealing two-way axle sleeve, comprise aluminium cover (1), lining (2) and axle sleeve body (3); Described axle sleeve body (3) is provided with two through holes (4) that penetrate described axle sleeve body (3) along described axle sleeve body thickness direction; On a side of described axle sleeve body (3), between two through holes (4), be provided with oil outlet (5); Axle sleeve body (3) is provided with on the side of oil outlet (5) and also is provided with oil groove (6), and described oil groove (6) communicates with described oil outlet (5); Be provided with cavity (7) within the described axle sleeve body (3), the left end of described cavity (7) is provided with valve seat (8), and the right-hand member of described cavity (7) is provided with valve pocket (9), is provided with valve pocket (10) within the described valve pocket (9); Be provided with the first oil duct (11) on the described valve seat (8); Be provided with the second oil duct (12) and the 3rd oil duct (13) on the described axle sleeve body (3); Described the 3rd oil duct (13) is connected with described oil outlet (5); Described the first oil duct (11), the second oil duct (12) and the 3rd oil duct (13) all communicate with described valve pocket (10) within the described valve pocket (9), are provided with steel ball (14) within the described valve pocket (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220442563 CN202718864U (en) | 2012-09-01 | 2012-09-01 | Full hydraulic floating no-sealing two-way shaft sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220442563 CN202718864U (en) | 2012-09-01 | 2012-09-01 | Full hydraulic floating no-sealing two-way shaft sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202718864U true CN202718864U (en) | 2013-02-06 |
Family
ID=47620688
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220442563 Expired - Fee Related CN202718864U (en) | 2012-09-01 | 2012-09-01 | Full hydraulic floating no-sealing two-way shaft sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202718864U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102817838A (en) * | 2012-09-01 | 2012-12-12 | 合肥长源液压股份有限公司 | Full-hydraulic floating sealing-free bidirectional shaft sleeve |
-
2012
- 2012-09-01 CN CN 201220442563 patent/CN202718864U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102817838A (en) * | 2012-09-01 | 2012-12-12 | 合肥长源液压股份有限公司 | Full-hydraulic floating sealing-free bidirectional shaft sleeve |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130206 Termination date: 20210901 |