CN210178527U - Antiskid pump for differential mechanism - Google Patents
Antiskid pump for differential mechanism Download PDFInfo
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- CN210178527U CN210178527U CN201920824434.1U CN201920824434U CN210178527U CN 210178527 U CN210178527 U CN 210178527U CN 201920824434 U CN201920824434 U CN 201920824434U CN 210178527 U CN210178527 U CN 210178527U
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Abstract
The utility model discloses an antiskid pump for differential mechanism belongs to varactor formula pump technical field, and it includes the pump case, and the motor is installed to the one end of pump case, and in the pivot of motor stretched into the pump case, characterized in that: a cylinder body and a baffle are arranged in the pump shell, the cylinder body is arranged on the rotating shaft, more than two hydraulic cavities are formed in the cylinder body, a plunger is assembled in each hydraulic cavity, one end of the plunger is connected with an elastic body, the other end of the elastic body is connected with the cylinder body, the other end of the plunger is provided with an extending end which exceeds one end wall of the cylinder body, the extending end abuts against the baffle, and the hydraulic cavity is provided with a liquid through hole communicated with the other end wall of the cylinder body; the cylinder body is provided with an end cover, a liquid inlet hole and a liquid outlet passage are formed in the end cover, the liquid outlet passage is communicated with the liquid outlet hole, the liquid inlet hole and the liquid outlet passage can be communicated with the liquid inlet hole, and the baffle is inclined towards the direction of the cylinder body from the liquid inlet hole to the liquid outlet passage. The pump utilizes the hydraulic cavity with larger volume to complete the liquid conveying, increases the liquid pumping amount, reduces the time of pumping the liquid amount required by antiskid, and improves the antiskid performance.
Description
Technical Field
The utility model belongs to the technical field of the varactor formula pump, concretely relates to antiskid pump for differential mechanism.
Background
It is known that the wheels on both sides of a vehicle are driven by an engine, and in order to meet the requirement that the vehicle can smoothly turn and allow a certain difference in rotational speed between the driving wheels on both sides, a differential is usually fitted between the two driving wheels. The side gears of the differential are coupled together by planetary gears, and the half shafts driven by the side gears are coupled to drive wheels. When the automobile runs on a flat road in a straight line, the planet gear only revolves and does not rotate around the axis of the planet gear, so that the two semi-axis gears are driven to rotate at the same rotating speed; during turning, the planetary gear revolves and rotates around the axis of the planetary gear, so that the two driving wheels rotate at different rotating speeds. However, when the automobile runs on a road surface such as an ice surface, a snow surface and the like with poor conditions, once the phenomenon that one side driving wheel slips occurs, the traction force of the whole automobile is rapidly reduced, and the normal running of the automobile is influenced.
Therefore, hydraulic antiskid pumps have been developed to cooperate with differentials to form limited slip differentials to prevent the drive wheels from slipping. The existing antiskid hydraulic pump has small liquid volume and low working efficiency, so that the antiskid performance in the early stage is not stable enough.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that an antiskid pump for differential mechanism is provided, can improve the pump liquid measure.
In order to solve the technical problem, the technical scheme of the utility model is that: the design is an antiskid pump for differential mechanism, including the pump case, the one end installation motor of pump case, in the pivot of motor stretched into the pump case, its characterized in that: a cylinder body and a baffle are arranged in the pump shell, the cylinder body is arranged on the rotating shaft, more than two hydraulic cavities are formed in the cylinder body, a plunger is assembled in each hydraulic cavity, one end of the plunger is connected with an elastic body, the other end of the elastic body is connected with the cylinder body, the other end of the plunger is provided with an extending end which exceeds one end wall of the cylinder body, the extending end abuts against the baffle, and the hydraulic cavity is provided with a liquid through hole communicated with the other end wall of the cylinder body;
the cylinder body is provided with an end cover, a liquid inlet hole and a liquid outlet passage are formed in the end cover, the liquid outlet passage is communicated with the liquid outlet hole, the liquid inlet hole and the liquid outlet passage can be communicated with the liquid inlet hole, and the baffle is inclined towards the direction of the cylinder body from the liquid inlet hole to the liquid outlet passage.
Preferably, a liquid storage cavity is formed in the plunger.
Preferably, the elastic body is a spring, and the spring extends into the liquid storage cavity and is connected with the plunger.
Preferably, the end cover is provided with a net rack, a filter screen is arranged in the net rack, and the filter screen is covered on the liquid inlet hole.
Preferably, the hydraulic chambers are evenly distributed around the circumference of the rotating shaft.
Preferably, the baffle is a rolling bearing.
Preferably, the liquid outlet hole is formed in the side wall of the cylinder body.
Preferably, the cylinder body is provided with a cover cap, the cover cap covers the liquid outlet hole, the end cover and the net rack in the cover cap, a liquid inlet cavity is formed between the cover cap and the end cover, the end wall of the cover cap is provided with a liquid inlet, the liquid inlet is communicated with the liquid inlet cavity, the side wall of the cover cap is provided with a liquid outlet, and the liquid outlet is communicated with the liquid outlet hole.
Preferably, a first sealing ring and a second sealing ring are arranged between the cover cap and the cylinder body, and the first sealing ring and the second sealing ring are sequentially positioned on two sides of the liquid outlet hole.
Compared with the prior art, the beneficial effects of the utility model are that:
1. because the plunger is assembled in the hydraulic cavity on the cylinder body through the spring connection, and the other end of the plunger is abutted against the inclined baffle, the volume change of the hydraulic cavity is caused in the rotating process of the cylinder body, so that the hydraulic cavity with larger volume is utilized to complete the liquid conveying, the liquid pumping amount is increased, the time for pumping the liquid amount required by antiskid is reduced, and the antiskid performance is improved.
2. Because the liquid storage cavity is formed in the plunger, the liquid storage amount can be increased.
3. Because the net rack is assembled on the end cover, the filter screen is installed in the net rack, and the filter screen cover is arranged on the liquid inlet hole, the liquid entering the cylinder body can be filtered in advance, so that the blocking phenomenon caused by impurities in the process of conveying the liquid is prevented, the conveying capacity of the antiskid pump is reduced, and the service life of the antiskid pump is even influenced.
4. Because the hydraulic pressure chamber revolves the circumference evenly distributed of rotation axis, can carry liquid in succession and evenly, do benefit to better the accuse pump liquid volume, avoid causing great hydraulic pressure to its liquid equipment that receives.
5. The baffle is a rolling bearing and can rotate along with the rotating shaft of the motor, so that sliding friction between the baffle and the plunger is avoided, and the service life of the anti-skid pump is prolonged.
6. Because the liquid outlet hole is formed in the side wall of the cylinder body, on one hand, liquid inlet and liquid outlet can be thoroughly separated, and on the other hand, the larger size of the cylinder body is fully utilized, so that the arrangement of a liquid outlet channel is facilitated.
7. Because the cover cap is assembled on the cylinder body, the cover cap covers the liquid outlet hole, the end cover and the net rack in the cover cap, a liquid inlet cavity is formed between the cover cap and the end cover, the liquid in the conveying process can be buffered by the liquid inlet cavity, bubbles are reduced, and the effective conveying amount of the liquid is convenient to guarantee.
8. Because install first sealing washer and second sealing washer between shroud and cylinder body, first sealing washer and second sealing washer are located the both sides in proper order out the liquid hole, can realize on the one hand that go out the sealed isolation between liquid hole and liquid storage cavity, and on the other hand avoids the loss of output liquid.
9. The utility model discloses simple structure can improve the pump liquid measure, carries the non-skid property of antiskid pump, is convenient for popularize and apply in industry.
Drawings
FIG. 1 is an exploded perspective view of the present invention;
FIG. 2 is a view in the direction A of FIG. 1;
FIG. 3 is a cross-sectional view B-B of FIG. 2;
FIG. 4 is a cross-sectional view C-C of FIG. 2;
FIG. 5 is an enlarged view of detail I of FIG. 4;
FIG. 6 is a perspective view of the end cap;
FIG. 7 is a view in the direction D of FIG. 6;
fig. 8 is a cross-sectional view E-E of fig. 7.
The labels in the figure are: 1. a cover; 2. a liquid outlet; 3. a liquid inlet; 4. a net frame; 5. a filter screen; 6. an end cap; 7. a liquid inlet hole; 8. a second liquid outlet passage; 9. a liquid through hole; 10. a liquid outlet hole; 11. a pump housing; 12. a motor; 13. a first seal ring; 14. A second seal ring; 15. a rotating shaft; 16. a rolling bearing; 17. a first liquid outlet passage; 18. a cylinder body; 19. a liquid storage cavity; 20. A hydraulic chamber; 21. a spring; 22. and a plunger.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 3 and 4, the utility model discloses install motor 12 at one end of pump case 11, the pivot 15 of motor 12 stretches into in the pump case 11, set up cylinder 18 and antifriction bearing 16 in the pump case 11, cylinder 18 installs on pivot 15, five and the circumference evenly distributed hydraulic pressure chamber 20 that encircle pivot 15 have been seted up on cylinder 18, as shown in fig. 5, join in marriage in each hydraulic pressure chamber 20 and be equipped with plunger 22, the liquid storage chamber 19 has been seted up in the plunger 22, the one end of spring 21 stretches into in the liquid storage chamber 19 and connects on plunger 22, the other end is connected on cylinder 18, the other end of plunger 22 has the end that stretches out that surpasss an end wall of cylinder 18, the end that stretches out supports and leans on antifriction bearing 16, hydraulic pressure chamber 20 has the through-liquid hole 9 that communicates; as shown in fig. 6, 7 and 8, an end cover 6 is disposed on the cylinder 18, and as shown in fig. 6, 7 and 8, a liquid inlet hole 7 and a first liquid outlet passage 17 are formed in the end cover 6, a second liquid outlet passage 8 is formed in the cylinder 18, the second liquid outlet passage 8 is connected to the liquid outlet hole 10, and the liquid outlet hole 10 is formed in a side wall of the cylinder 18, so that the first liquid outlet passage 17 and the second liquid outlet passage 8 jointly form a liquid outlet passage. The liquid inlet hole 7 and the liquid outlet passage can be communicated with the liquid through hole 9, and the rolling bearing 16 is inclined from the liquid inlet hole 7 to the liquid outlet passage in the direction of the cylinder 18.
In order to prevent impurities in the liquid from entering the cylinder body 18, a net rack 4 is also arranged on the end cover 6, a filter screen 5 is arranged in the net rack 4, and the filter screen 5 covers the liquid inlet hole 7. As shown in fig. 1 and 2, the cylinder body 18 is further provided with a cover cap 1, the cover cap 1 covers the liquid outlet hole 10, the end cover 6 and the net rack 4 in the cover cap 1, a liquid inlet cavity is formed between the cover cap 1 and the end cover 6, the end wall of the cover cap 1 is provided with a liquid inlet 3, the liquid inlet 3 is communicated with the liquid inlet cavity, the side wall of the cover cap 1 is provided with a liquid outlet 2, and the liquid outlet 2 is communicated with the liquid outlet hole 10. A first sealing ring 13 and a second sealing ring 14 are arranged between the cover cap 1 and the cylinder body 18, and the first sealing ring 13 and the second sealing ring 14 are sequentially positioned at two sides of the liquid outlet hole 10.
The working process of the utility model is as follows:
liquid enters the liquid inlet cavity from the liquid inlet 3 on the cover cap 1, after being buffered in the liquid inlet cavity, the liquid at the bottom enters the liquid inlet hole 7 after being filtered by the filter screen 5, and then enters the hydraulic cavity 20 through the liquid through hole 9, at the moment, the plunger 22 in the hydraulic cavity 20 is just pushed out to the maximum position by the spring 21, and the volume of the hydraulic cavity 20 is maximum; the motor 12 drives the cylinder 18 to charge liquid into the rear hydraulic cavity 20 in the process of rotating from one side where the liquid through hole 9 is located to the other side where the liquid outlet passage is located; the rolling bearing 16 placed obliquely pushes and pushes the plunger 22 to retreat into the hydraulic cavity 20 against the elastic force of the spring 21, the volume of the hydraulic cavity 20 is gradually reduced, the liquid in the hydraulic cavity is pressed and pressed into the first liquid outlet channel 17, enters the second liquid outlet channel 8 and is discharged into the liquid outlet 2 from the liquid outlet hole 10 until the plunger 22 in the hydraulic cavity 20 is pushed to the maximum extent, the hydraulic cavity 20 completes the liquid discharging process, and the steps are repeated in such a circulating way to finish the pumping of the liquid.
The rolling bearing 16 may be replaced by a baffle of other structure, as long as the baffle can be placed obliquely and can push the plunger 22 to change the volume of the hydraulic chamber 20, but the rolling bearing 16 is used to convert the sliding movement with the plunger 22 into rolling movement in the bearing. Of course, the spring 21 may be replaced by an elastic body having another structure as long as it has a certain elastic space.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical substance of the present invention still belong to the protection scope of the technical solution of the present invention.
Claims (9)
1. The utility model provides an antiskid pump for differential mechanism, includes the pump case, the one end installation motor of pump case, and in the pivot of motor stretched into the pump case, its characterized in that: a cylinder body and a baffle are arranged in the pump shell, the cylinder body is arranged on the rotating shaft, more than two hydraulic cavities are formed in the cylinder body, a plunger is assembled in each hydraulic cavity, one end of the plunger is connected with an elastic body, the other end of the elastic body is connected with the cylinder body, the other end of the plunger is provided with an extending end which exceeds one end wall of the cylinder body, the extending end abuts against the baffle, and the hydraulic cavity is provided with a liquid through hole communicated with the other end wall of the cylinder body;
the cylinder body is provided with an end cover, a liquid inlet hole and a liquid outlet passage are formed in the end cover, the liquid outlet passage is communicated with the liquid outlet hole, the liquid inlet hole and the liquid outlet passage can be communicated with the liquid inlet hole, and the baffle is inclined towards the direction of the cylinder body from the liquid inlet hole to the liquid outlet passage.
2. The antiskid pump for a differential according to claim 1, wherein: a liquid storage cavity is formed in the plunger.
3. The antiskid pump for a differential according to claim 2, wherein: the elastic body is a spring, and the spring extends into the liquid storage cavity and is connected with the plunger.
4. The antiskid pump for a differential according to claim 1, wherein: the end cover is provided with a net rack, a filter screen is arranged in the net rack, and the filter screen is covered on the liquid inlet hole.
5. The antiskid pump for a differential according to claim 4, wherein: the hydraulic cavities are uniformly distributed around the circumference of the rotating shaft.
6. The antiskid pump for a differential according to claim 5, wherein: the baffle is a rolling bearing.
7. The antiskid pump for a differential according to claim 6, wherein: the liquid outlet is formed in the side wall of the cylinder body.
8. The antiskid pump for a differential apparatus according to any one of claims 1 to 7, wherein: the cover cap is assembled on the cylinder body, the cover cap covers and installs the liquid outlet hole, the end cover and the net rack in the cover cap, a liquid inlet cavity is formed between the cover cap and the end cover, a liquid inlet is formed in the end wall of the cover cap and communicated with the liquid inlet cavity, a liquid outlet is formed in the side wall of the cover cap, and the liquid outlet is communicated with the liquid outlet hole.
9. The antiskid pump for a differential according to claim 8, wherein: a first sealing ring and a second sealing ring are arranged between the cover cap and the cylinder body, and the first sealing ring and the second sealing ring are sequentially positioned on two sides of the liquid outlet hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920824434.1U CN210178527U (en) | 2019-06-03 | 2019-06-03 | Antiskid pump for differential mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920824434.1U CN210178527U (en) | 2019-06-03 | 2019-06-03 | Antiskid pump for differential mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210178527U true CN210178527U (en) | 2020-03-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920824434.1U Active CN210178527U (en) | 2019-06-03 | 2019-06-03 | Antiskid pump for differential mechanism |
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| Country | Link |
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| CN (1) | CN210178527U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114576160A (en) * | 2020-12-02 | 2022-06-03 | 浙江福爱电子有限公司 | Variable displacement pump with wobble plate structure |
-
2019
- 2019-06-03 CN CN201920824434.1U patent/CN210178527U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114576160A (en) * | 2020-12-02 | 2022-06-03 | 浙江福爱电子有限公司 | Variable displacement pump with wobble plate structure |
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| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: No.69 Meishan Road, Zichuan District, Zibo City, Shandong Province Patentee after: SHANDONG TAIZHAN MECHANICAL AND ELECTRICAL TECHNOLOGY CO.,LTD. Address before: 255100 No. 5, Shuangshan Qianli Road, Zichuan Economic Development Zone, Zibo City, Shandong Province Patentee before: SHANDONG TAIZHAN MECHANICAL AND ELECTRICAL TECHNOLOGY CO.,LTD. |
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