CN214742904U

CN214742904U - Valve body device for reducing power loss of hydraulic retarder

Info

Publication number: CN214742904U
Application number: CN202120681598.0U
Authority: CN
Inventors: 赵鑫; 赵小宇; 赵甜甜; 殷楠
Original assignee: Transpower Hydraulic Engineering Xi'an Co ltd
Current assignee: Transpower Hydraulic Engineering Xi'an Co ltd
Priority date: 2021-04-02
Filing date: 2021-04-02
Publication date: 2021-11-16
Anticipated expiration: 2031-04-02

Abstract

The utility model relates to the technical field of valves, specifically be a reduce valve body device of hydraulic retarber power loss, including the oil bath shell, open respectively on the lower side of the middle part front side of oil bath shell has first round hole and second round hole, open the inner chamber middle part upside of oil bath shell has the mounting groove, the inboard of mounting groove is through disk seat fixedly connected with spliced pole, the downside of spliced pole runs through to open has the third round hole, the upside of spliced pole runs through to open has the fourth round hole, the upper end outside fixedly connected with leather cup of spliced pole, the fixed seal ring that inlays in leather cup outside upper portion has the enhancement sealing ring, the upper end outside fixedly connected with circular arc sealing ring of leather cup. This reduce hydraulic retarber power loss's valve body device, through the overall structure of equipment, the lost power that idles that can effectual reduction hydraulic retarber. Through the structure that is equipped with the clamp plate, strengthens sealing ring, inserting groove and communicating pipe, the extrusion force of increase leather cup and mounting groove lateral wall, and the sealing performance of increase leather cup.

Description

Valve body device for reducing power loss of hydraulic retarder

Technical Field

The utility model relates to the technical field of valves, specifically be a reduce valve body device of hydraulic retarber power loss.

Background

The hydraulic retarder is an excellent auxiliary braking device, has wide application prospect in the fields of road transport vehicles, passenger cars and mining vehicles, generally speaking, the input end of the hydraulic retarder and the output end of a gearbox are in a normally meshed state, and in the running process of the vehicle, due to meshing transmission of gears, a rotor of the hydraulic retarder always rotates at a high speed, so that energy loss can be generated in the normal running and climbing processes, and the oil consumption of the whole vehicle is increased. In the performance evaluation of the retarder, the idle power loss is an important performance index, and the standard requires that the idle power loss is not higher than 2kW when the hydraulic retarder is at 1500 rpm. Otherwise, the power loss of the retarder during idling is increased, and the overall performance index of the retarder and the oil consumption of the whole vehicle are seriously influenced.

When the hydraulic retarder is braked, compressed air is introduced into the oil feed tank shell, hydraulic oil is pressed into the working cavity, the stator and the rotor in the working cavity stir the oil to generate braking force, and the size of the braking force of the retarder is determined by controlling the size of air pressure. When the oil tank is released from operation, the compressed air in the oil tank shell needs to be completely discharged, so that the oil tank shell is communicated with the external air pressure. Therefore, the factors influencing the air loss of the hydraulic retarder mainly have two aspects, namely turbulent flow loss generated by stirring air by a stator and a rotor of a working cavity on the one hand, and partial micro torque generated by the retarder due to the control pressure remained in an oil pool shell on the other hand. At present, three main technologies are mainly adopted for reducing the air loss: 1. a spoiler pin or a spoiler disc is added on a retarder stator to disturb airflow of the retarder during idling and reduce energy consumption, but the technology cannot fundamentally stop idling loss, and the idling loss is still larger than 2kW when the general transmission shaft rotates at 1500 rpm. 2. The clutch and other separating devices are added, the mode can completely disconnect and combine retarder power transmission, but the mechanical structure is complex, the processing and manufacturing difficulty is high, an independent control oil way needs to be arranged, the cost is high, the arrangement difficulty is high, and the popularization and the application are not facilitated. 3. The rotor is sleeved on the spline shaft through the spiral spline, and when the retarder does not work, the rotor is far away from the stator under the pressure of the spring, so that the idle loss is reduced; when the retarder works, the rotor compresses the spring to be close to the stator under the pressure of oil liquid to generate braking force. The three technologies mainly reduce the empty loss from the aspect of solving the turbulent loss of the working cavity, the problem of the increase of the empty loss caused by residual pressure in the oil pool shell is not considered, and the sealing degree of common equipment cannot meet the requirement in the using process, so the valve body device for reducing the power loss of the hydraulic retarder is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a reduce hydraulic retarber power loss's valve body device to the mechanical structure who provides in solving above-mentioned background art is complicated, and the manufacturing degree of difficulty is big, still need arrange independent control oil circuit, and is with high costs, arranges the degree of difficulty big, is unfavorable for popularizing and applying, and ordinary equipment is in the use, and its leakproofness also can not reach the problem of requirement.

In order to achieve the above object, the utility model provides a following technical scheme: a valve body device for reducing power loss of a hydraulic retarder comprises a pool shell, wherein a first round hole and a second round hole are respectively formed in the upper side and the lower side of the front side of the middle of the pool shell, a mounting groove is formed in the upper side of the middle of an inner cavity of the pool shell, a connecting column is fixedly connected to the inner side of the mounting groove through a valve seat, a third round hole is formed in the lower side of the connecting column in a penetrating mode, a fourth round hole is formed in the upper side of the connecting column in a penetrating mode, a leather cup is fixedly connected to the outer side of the upper end of the connecting column, a reinforcing sealing ring is fixedly embedded in the upper portion of the outer side of the leather cup, an arc sealing ring is fixedly connected to the outer side of the upper end of the leather cup, an inserting groove is formed in the middle of the leather cup, a sealing limiting plate is movably inserted in the inner side of the inserting groove, a pressing plate is fixedly connected to the upper end of the sealing limiting plate through a connecting rod, and a spring is connected between the lower end of the sealing limiting plate and the lower end of the inner cavity of the inserting groove, the outer side lower part of the insertion groove is communicated with the middle hollow cavity of the reinforcing sealing ring through a communicating pipe, a through hole is formed in the middle of the connecting column, the upper side and the lower side of the through hole are respectively connected with the fourth round hole and the third round hole, and a plug is inserted into the upper side of the mounting groove in a threaded sealing mode.

Preferably, the outer diameter of the circular arc sealing ring is smaller than the inner diameter of the mounting groove.

Preferably, the first round hole and the second round hole are respectively communicated with the upper side and the lower side of the mounting groove.

Preferably, the outer side of the reinforced sealing ring is a vertical plane.

Preferably, a rubber sealing ring is fixedly embedded on the outer side of the sealing limit plate.

Preferably, the inner side wall of the insertion groove and the outer side wall of the sealing limit plate are smooth.

Preferably, the number of the communicating pipes is four, and the communicating pipes are arranged between the lower part of the outer side of the insertion groove and the reinforcing sealing ring in an annular array.

Compared with the prior art, the beneficial effects of the utility model are that: this reduce hydraulic retarber power loss's valve body device, overall structure through equipment can be with the whole discharges of remaining working solution in the hydraulic retarber working chamber, and the idle running loss power of effectual reduction hydraulic retarber further reduces the oil consumption of vehicle when normal highway section goes, improves whole car fuel economy, compares prior art, this utility model structure is simple, and the technique is easily realized, and the reliability is high, and production low in manufacturing cost is fit for the large tracts of land and uses widely.

Through being equipped with the clamp plate, strengthen the sealing ring, the structure of inserting groove and communicating pipe, strengthen the sealing ring when the upper portion of leather cup seal installation groove is sealed, at this moment, the pressure on mounting groove upper portion can increase, thereby can extrude the clamp plate, and then make clamp plate downstream, thereby drive the downward motion of sealed limiting plate, thereby the inside air of extrusion inserting groove passes through communicating pipe and gets into the cavity in the inside of strengthening the sealing ring, thereby make the inflation of enhancement sealing ring, and then the extrusion force of great increase leather cup and mounting groove lateral wall, and the sealing performance of increase leather cup.

Drawings

FIG. 1 is a front view of the present invention;

FIG. 2 is a front view of the oil sump housing of the present invention;

FIG. 3 is a cross-sectional view of the oil sump housing of the present invention at D-D;

FIG. 4 is a sectional view of the connecting column of the present invention;

fig. 5 is an enlarged view of the position M of fig. 3 according to the present invention.

In the figure: 1. an oil sump housing; 2. a first circular hole; 3. a second circular hole; 4. mounting grooves; 5. a plug; 6. a valve seat; 7. connecting columns; 8. a third circular hole; 9. a fourth circular hole; 10. a leather cup; 11. reinforcing the sealing ring; 12. a circular arc sealing ring; 13. pressing a plate; 14. inserting grooves; 15. sealing the limiting plate; 16. a spring; 17. a communicating pipe; 18. and a through hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: the utility model provides a reduce hydraulic retarber power loss's valve body device, includes oil sump shell 1, the side is opened respectively to the middle part front side of oil sump shell 1 about the middle part front side has first round hole 2 and second round hole 3, and first round hole 2 is for admitting air, and second round hole 3 is for the exhaust, open mounting groove 4 at the inner chamber middle part upside of oil sump shell 1, and mounting groove 4 is for installing disk seat 6, the inboard of mounting groove 4 is through disk seat 6 fixedly connected with spliced pole 7, and the upper end of spliced pole 7 is for fixed connection leather cup 10, and the outside of leather cup 10 is rubber materials, and the middle part is aluminum alloy materials, the downside of spliced pole 7 runs through and opens there is third round hole 8, the upside of spliced pole 7 runs through and opens there is fourth round hole 9, the upper end outside fixedly connected with leather cup 10 of spliced pole 7, the fixed the inlaying in leather cup 10 outside upper portion has the enhancement sealing ring 11, strengthens sealing ring 11 when the upper portion of leather cup 10 seal mounting groove 4 is sealed, at this time, the pressure intensity at the upper part of the mounting groove 4 is increased, so that the pressure plate 13 is extruded, the pressure plate 13 moves downwards, the sealing limiting plate 15 is driven to move downwards, air in the extrusion inserting groove 14 enters the hollow cavity in the reinforcing sealing ring 11 through the communicating pipe 17, the reinforcing sealing ring 11 is expanded, the extrusion force of the leather cup 10 and the side wall of the mounting groove 4 is greatly increased, and the sealing performance of the leather cup 10 is improved;

the outer side of the upper end of the leather cup 10 is fixedly connected with an arc sealing ring 12, the arc sealing ring 12 can more sensitively seal the upper part of the mounting groove 4 when gas enters the upper part of the mounting groove 4, so that the sealing response of the upper part of the mounting groove 4 is quicker, the middle part of the leather cup 10 is provided with an insertion groove 14, the inner side of the insertion groove 14 is movably and hermetically inserted with a sealing limit plate 15, the upper end of the sealing limit plate 15 is fixedly connected with a pressing plate 13 through a connecting rod, a spring 16 is connected between the lower end of the sealing limit plate 15 and the lower end of the inner cavity of the insertion groove 14, the spring 16 can enable the sealing limit plate 15 to return to the original position when the upper part of the pressing plate 13 is not stressed, the lower part of the outer side of the insertion groove 14 is communicated with the middle hollow cavity of the reinforcing sealing ring 11 through a communicating pipe 17, the middle part of the connecting column 7 is provided with a through hole 18, and the upper side and the lower side of the through hole 18 are respectively connected with a fourth round hole 9 and a third round hole 8, and a plug 5 is inserted into the upper side of the mounting groove 4 in a sealing manner through threads.

Further, as shown in fig. 2 and 4, the circular arc sealing ring 12 has an outer diameter smaller than the inner diameter of the mounting groove 4, and the first circular hole 2 and the second circular hole 3 are respectively communicated with the upper side and the lower side of the mounting groove 4. The outer side of the reinforced sealing ring 11 is a vertical plane. The first round hole 2 is used for air intake, the second round hole 3 is used for air exhaust,

further, as shown in fig. 5, a rubber sealing ring is fixedly embedded on the outer side of the sealing limit plate 15. The inside wall of inserting groove 14 and the lateral wall of sealed limiting plate 15 are all smooth, and when sealed limiting plate 15's downward displacement, can extrude the air of 14 inner chambers lower parts of inserting groove.

Further, as shown in fig. 5, four communication pipes 17 are provided, the communication pipes 17 are arranged between the lower portion of the outer side of the insertion groove 14 and the reinforcing sealing ring 11 in an annular array, and when the sealing limiting plate 15 is displaced downward, air which is extruded from the lower portion of the inner cavity of the insertion groove 14 enters the reinforcing sealing ring 11 through the communication pipes 17, so that the outer side of the reinforcing sealing ring 11 is expanded.

The working principle is as follows: when the retarber during operation, because first round hole 2 leads to oil bath shell 1, so when the retarber lets in control atmospheric pressure, there is the effect of atmospheric pressure in leather cup 10 upper portion, and the leather cup 10 is expanded this moment, thereby leather cup 10 diameter increase eliminates the clearance between leather cup 10 and mounting groove 4 and guarantees that the retarber produces required braking force.

And strengthen sealing ring 11 when the upper portion of the sealed mounting groove 4 of leather cup 10 is sealed, at this moment, the pressure on 4 upper portions of mounting groove can increase, thereby can extrude clamp plate 13, and then make clamp plate 13 downstream, thereby drive sealed limiting plate 15 downstream, thereby extrude 14 inside air of inserting groove through communicating pipe 17 and get into and strengthen 11 inside cavity hollows of sealing ring, thereby make and strengthen 11 inflation of sealing ring, and then the extrusion force of 4 lateral walls of great increase leather cup 10 and mounting groove, and increase the sealing performance of leather cup 10.

When the retarder is in an idling state, the residual air pressure in the oil pool shell 1 is small, the leather cup 10 is not enough to expand to seal the shell, so the residual air pressure in the oil pool shell 1 can be eliminated by communicating with the atmosphere through the first round hole 2, the leather cup 10 and the gap of the retarder shell, the second round hole 3, the third round hole 8, the fourth round hole 9 and the through hole 18, thereby eliminating or avoiding the influence of the residual pressure in the oil pool shell 1 on the air loss, and the effect of reducing the air loss of the retarder is achieved.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. A valve body device for reducing power loss of a hydrodynamic retarder comprises a pool shell (1), and is characterized in that: the improved oil pool is characterized in that a first round hole (2) and a second round hole (3) are respectively formed in the upper side and the lower side of the front side of the middle of the oil pool shell (1), a mounting groove (4) is formed in the upper side of the middle of the oil pool shell (1), a connecting column (7) is fixedly connected to the inner side of the mounting groove (4) through a valve seat (6), a third round hole (8) is formed in the lower side of the connecting column (7) in a penetrating mode, a fourth round hole (9) is formed in the upper side of the connecting column (7) in a penetrating mode, a leather cup (10) is fixedly connected to the outer side of the upper end of the connecting column (7), a reinforcing sealing ring (11) is fixedly embedded in the upper portion of the outer side of the leather cup (10), an arc sealing ring (12) is fixedly connected to the outer side of the upper end of the leather cup (10), an insertion groove (14) is formed in the middle of the leather cup (10), and a sealing limiting plate (15) is movably sealed in an insertion manner in a sealing manner, connecting rod fixedly connected with clamp plate (13) is passed through to the upper end of sealed limiting plate (15), be connected with spring (16) between the lower extreme of sealed limiting plate (15) and the inner chamber lower extreme of inserting groove (14), the cavity is linked together in the middle part of the outside lower part of inserting groove (14) through communicating pipe (17) and reinforcing sealing ring (11), open at the middle part of spliced pole (7) has through-hole (18), the upper and lower side of through-hole (18) links to each other with fourth round hole (9) and third round hole (8) respectively, the upside of mounting groove (4) is pegged graft through thread seal and is had end cap (5).

2. A valve body device for reducing power loss of a hydrodynamic retarder according to claim 1, characterized in that: the outer diameter of the circular arc sealing ring (12) is smaller than the inner diameter of the mounting groove (4).

3. A valve body device for reducing power loss of a hydrodynamic retarder according to claim 1, characterized in that: the first round hole (2) and the second round hole (3) are respectively communicated with the upper side and the lower side of the mounting groove (4).

4. A valve body device for reducing power loss of a hydrodynamic retarder according to claim 1, characterized in that: the outer side of the reinforcing sealing ring (11) is a vertical plane.

5. A valve body device for reducing power loss of a hydrodynamic retarder according to claim 1, characterized in that: and a rubber sealing ring is fixedly embedded on the outer side of the sealing limit plate (15).

6. A valve body device for reducing power loss of a hydrodynamic retarder according to claim 1, characterized in that: the inner side wall of the insertion groove (14) and the outer side wall of the sealing limit plate (15) are smooth.

7. A valve body device for reducing power loss of a hydrodynamic retarder according to claim 1, characterized in that: the number of the communicating pipes (17) is four, and the communicating pipes (17) are arranged between the lower part of the outer side of the inserting groove (14) and the reinforcing sealing ring (11) in an annular array.