Hydraulic regulation and control type hydraulic retarder

Abstract

The utility model relates to the technical field of hydraulic retarders, in particular to a hydraulic regulation and control type hydraulic retarder. The hydrodynamic retarder comprises a shell, a section of rotating shaft extending into the shell is rotationally connected to the shell, and the hydrodynamic retarder is characterized in that a rotor capable of rotating along with the rotating shaft and axially moving along the rotating shaft is installed on the part, located in the shell, of the rotating shaft, and a rotor reset device is installed between the rotor and the rotating shaft; a stator located behind the rotor is further installed in the shell, a front liquid inlet located in front of the rotor, a rear liquid inlet located between the rotor and the stator and a rear liquid outlet located between the rotor and the stator are formed in the shell, and the front liquid inlet and the rear liquid inlet are connected with a liquid supply system. During use, liquid entering the shell from the front liquid inlet is located in front of the rotor and used for improving hydraulic pressure in front of the rotor and pushing the rotor to be close to the stators, the distance between the rotor and the stators is reduced, rotation resistance borne by the rotor is increased, and the speed reduction effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic retarders, and in particular to a hydraulic control type hydraulic retarder. Background Art

[0002] The existing hydraulic retarder includes a housing, a rotating shaft 18 extending into the housing is rotatably connected to the housing, a rotor is installed on the portion of the rotating shaft located in the housing, a stator located behind the rotor is also installed in the housing, and a rear liquid inlet located between the rotor and the stator and a rear liquid outlet located between the rotor and the stator are opened on the housing. When in use, the liquid entering the housing from the rear liquid inlet is located between the rotor and the stator, and is used to decelerate the rotor.

[0003] The above technical solution has the following disadvantages: the distance between the rotor and the stator is constant, and it is inconvenient to adjust the rotational resistance of the rotor. Utility Model Content

[0004] The purpose of the utility model is to provide a hydraulic control type hydraulic retarder to solve the above problems, which can adjust the distance between the rotor and the stator.

[0005] To achieve the above-mentioned purpose, the utility model discloses a hydraulically controlled hydraulic retarder, which includes a shell, a rotating shaft extending into the shell is rotatably connected to the shell, and is characterized in that a rotor that can rotate with the rotating shaft and can move axially along the rotating shaft is installed on the part of the rotating shaft located in the shell, a rotor reset device is installed between the rotor and the rotating shaft, and a stator located behind the rotor is also installed in the shell, and a front liquid inlet located in front of the rotor, a rear liquid inlet located between the rotor and the stator, and a rear liquid discharge port located between the rotor and the stator are opened on the shell, and the front liquid inlet and the rear liquid inlet are connected to a liquid supply system.

[0006] When in use, the liquid entering the housing from the rear liquid inlet is located between the rotor and the stator, and is used to decelerate the rotor. The liquid entering the housing from the front liquid inlet is located in front of the rotor, and is used to increase the hydraulic pressure in front of the rotor, push the rotor closer to the stator, reduce the distance between the rotor and the stator, and increase the rotational resistance of the rotor, which is beneficial to improving the deceleration effect; or, the hydraulic pressure in front of the rotor is lowered to keep the rotor away from the stator, which is convenient for adjustment.

[0007] Preferably, the liquid supply system includes a main liquid inlet pipe, which is connected to a front liquid pipe connected to the front liquid port and a rear liquid inlet pipe connected to the rear liquid inlet port, a main liquid inlet valve is installed on the main liquid inlet pipe, a front liquid valve is installed on the front liquid pipe, and a rear liquid inlet valve is installed on the rear liquid inlet pipe.

[0008] When in use, the front liquid inlet valve is used to control the liquid inlet amount of the front liquid inlet, and the rear liquid inlet valve is used to control the liquid inlet amount of the rear liquid inlet, which is convenient for adjusting the rotor position and the rotational resistance of the rotor.

[0009] Preferably, the rear liquid discharge port is connected to a rear liquid discharge pipe, and a rear liquid discharge valve is installed on the rear liquid discharge pipe.

[0010] When in use, the rear discharge valve is used to control the discharge volume of the rear discharge port, and the operation is convenient.

[0011] Preferably, the housing is also provided with a front liquid discharge port located in front of the rotor.

[0012] When in use, the front liquid discharge port is used to control the amount of liquid in front of the rotor, making it convenient to adjust the displacement of the rotor.

[0013] Preferably, the front liquid discharge port is connected to a front liquid discharge pipe, and a front liquid discharge valve is installed on the front liquid discharge pipe.

[0014] When in use, the front liquid discharge valve is used to control the amount of liquid in front of the rotor, which is easy to operate.

[0015] Preferably, a sliding sleeve is slidably connected to the rotating shaft, a key slot is provided on the rotating shaft, a spline matching the key slot is provided on the inner side of the sliding sleeve, and the rotor is mounted on the sliding sleeve.

[0016] When in use, the sliding sleeve can rotate with the rotating shaft and can move along the axial direction of the rotating shaft, and the processing is simple and the movement is reliable.

[0017] Preferably, the rotating shaft has a rear shoulder located behind the sliding sleeve, and the rotor resetting device includes a spring sleeved on the rotating shaft, one end of the spring abuts against the rear shoulder, and the other end abuts against the sliding sleeve.

[0018] When in use, the rear shoulder is used to limit the spring, which is easy to use.

[0019] Preferably, the rotating shaft has a front shoulder located in front of the sliding sleeve.

[0020] When in use, the front shaft shoulder is used to limit the sliding sleeve, which is easy to use.

[0021] Preferably, a fixing sleeve is installed on the circumferential surface of the rotor, and an elastic ring is arranged along the circumference of the fixing sleeve on the outer side, one side edge of the elastic ring is connected to the fixing sleeve, and the other side edge is inclined outward and rearward.

[0022] During use, when the hydraulic pressure in front of the rotor increases, the elastic ring opens under the action of the hydraulic pressure, and the gap between the rotor and the inner wall of the shell decreases, which is beneficial to further increase the hydraulic pressure in front of the rotor and increase the thrust on the rotor.

[0023] Preferably, the thickness of the elastic ring gradually decreases from a side close to the fixing sleeve to a side far from the fixing sleeve.

[0024] When in use, the structure has high strength and facilitates the elastic ring to open under the action of hydraulic pressure.

[0025] In summary, the beneficial effects of the utility model are as follows: when in use, the liquid entering the housing from the rear liquid inlet is located between the rotor and the stator, and is used to decelerate the rotor; the liquid entering the housing from the front liquid inlet is located in front of the rotor, and is used to increase the hydraulic pressure in front of the rotor, push the rotor closer to the stator, reduce the distance between the rotor and the stator, increase the rotational resistance to the rotor, and help improve the deceleration effect; or, lower the hydraulic pressure in front of the rotor to keep the rotor away from the stator, making adjustment easier. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a side view structural diagram of a hydraulic control type hydraulic retarder of the utility model;

[0027] Figure 2 This is a rear view structural diagram of a hydraulic control type hydraulic retarder of the utility model;

[0028] Figure 3 This is a schematic diagram of the internal structure of a hydraulic control type hydraulic retarder of the utility model;

[0029] Figure 4 yes Figure 3 A schematic diagram of the enlarged structure of the state where the pressure in the front part of the middle part A is relatively small;

[0030] Figure 5 yes Figure 3 A schematic diagram of the enlarged structure of the state where the pressure in the front part of the middle part A is relatively large;

[0031] Figure 6 yes Figure 3 A schematic diagram of the enlarged structure of the local B in the middle;

[0032] Figure 7 yes Figure 6 Schematic diagram of the structure of the middle section CC.

[0033] In the figure: 1. front shell; 2. rear shell; 3. front liquid inlet; 4. rear liquid inlet; 5. front liquid pipe; 6. rear liquid inlet pipe; 7. front liquid valve; 8. rear liquid valve; 9. main liquid inlet pipe; 10. main liquid inlet valve; 11. front liquid discharge port; 12. rear liquid discharge port; 13. front liquid discharge pipe; 14. rear liquid discharge pipe; 15. front liquid discharge valve; 16. rear liquid discharge valve; 17. main liquid discharge pipe; 18. rotating shaft; 19. front ear plate; 20. rear ear plate; 21. rotor; 22. stator; 23. front shaft shoulder; 24. rear shaft shoulder; 25. sliding sleeve; 26. spring; 27. spline; 28. keyway; 29. ​​fixing sleeve; 30. elastic ring. DETAILED DESCRIPTION

[0034] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0035] In the description of the present application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0036] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0037] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0038] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments:

[0039] like Figures 1 to 7As shown, a hydraulically controlled hydraulic retarder comprises a shell, on which a shaft 18 extending into the shell is rotatably connected, a rotor 21 which can rotate with the shaft 18 and can move axially along the shaft 18 is installed on the part of the shaft 18 located in the shell, a rotor reset device is installed between the rotor 21 and the shaft 18, a stator 22 located behind the rotor 21 is also installed in the shell, a front liquid inlet 3 located in front of the rotor 21, a rear liquid inlet 4 located between the rotor 21 and the stator 22, and a rear liquid discharge port 12 located between the rotor 21 and the stator 22 are provided on the shell, and the front liquid inlet 3 and the rear liquid inlet 4 are connected to a liquid supply system. Specifically, the outer shell includes a front shell 1 and a rear shell 2, the front shell 1 has a front ear plate 19, the rear shell 2 has a rear ear plate 20, the front ear plate 19 and the rear ear plate 20 are connected by a bolt and nut structure, the number of the front ear plates 19 and the number of the rear ear plates 20 are four, the four front ear plates 19 are evenly arranged along the circumference of the front shell 1, and the four rear ear plates 20 are evenly arranged along the circumference of the rear shell 2.

[0040] When in use, the liquid entering the housing from the rear liquid inlet 4 is located between the rotor 21 and the stator 22, and is used to decelerate the rotor 21. The liquid entering the housing from the front liquid inlet 3 is located in front of the rotor 21, and is used to increase the hydraulic pressure in front of the rotor 21, pushing the rotor 21 close to the stator 22, reducing the distance between the rotor 21 and the stator 22, and increasing the rotational resistance to the rotor 21, which is beneficial to improving the deceleration effect; or, the hydraulic pressure in front of the rotor 21 is lowered to keep the rotor 21 away from the stator 22, which is convenient for adjustment.

[0041] The liquid supply system includes a main liquid inlet pipe 9, which is connected to a front liquid inlet pipe 5 connected to a front liquid port 3 and a rear liquid inlet pipe 6 connected to a rear liquid inlet 4. A main liquid inlet valve 10 is installed on the main liquid inlet pipe 9, a front liquid valve 7 is installed on the front liquid pipe 5, and a rear liquid inlet valve 8 is installed on the rear liquid inlet pipe 6.

[0042] When in use, the front liquid valve 7 is used to control the liquid inlet amount of the front liquid inlet 3, and the rear liquid valve 8 is used to control the liquid inlet amount of the rear liquid inlet 4, so as to facilitate the adjustment of the position of the rotor 21 and the rotational resistance of the rotor 21.

[0043] The rear liquid discharge port 12 is connected to a rear liquid discharge pipe 14 , and a rear liquid discharge valve 16 is installed on the rear liquid discharge pipe 14 .

[0044] When in use, the rear liquid discharge valve 16 is used to control the discharge volume of the rear liquid discharge port 12, and the operation is convenient.

[0045] The housing is also provided with a front liquid discharge port 11 located in front of the rotor 21 .

[0046] When in use, the front liquid discharge port 11 is used to control the amount of liquid in front of the rotor 21 , so as to facilitate the adjustment of the displacement of the rotor 21 .

[0047] The front liquid discharge port 11 is connected to a front liquid discharge pipe 13 , and a front liquid discharge valve 15 is installed on the front liquid discharge pipe 13 .

[0048] When in use, the front liquid discharge valve 15 is used to control the amount of liquid in front of the rotor 21, and the operation is convenient.

[0049] Preferably, the front drain pipe 13 and the rear drain pipe 14 are connected to a main drain pipe 17 .

[0050] A sliding sleeve 25 is slidably sleeved on the rotating shaft 18 . A keyway 28 is provided on the rotating shaft 18 . A spline 27 matching the keyway 28 is provided inside the sliding sleeve 25 . The rotor 21 is mounted on the sliding sleeve 25 .

[0051] When in use, the sliding sleeve 25 can rotate together with the rotating shaft 18 and can move axially along the rotating shaft 18, and the processing is simple and the movement is reliable.

[0052] The rotating shaft 18 has a rear shoulder 24 located behind the sliding sleeve 25 . The rotor resetting device includes a spring 26 sleeved on the rotating shaft 18 . One end of the spring 26 abuts against the rear shoulder 24 , and the other end abuts against the sliding sleeve 25 .

[0053] When in use, the rear shoulder 24 is used to limit the spring 26, which is convenient to use.

[0054] The rotating shaft 18 has a front shoulder 23 located in front of the sliding sleeve 25 .

[0055] When in use, the front shoulder 23 is used to limit the sliding sleeve 25, which is convenient to use.

[0056] A fixing sleeve 29 is mounted on the circumferential surface of the rotor 21 . An elastic ring 30 is arranged along the circumference of the fixing sleeve 29 . One edge of the elastic ring 30 is connected to the fixing sleeve 29 , and the other edge is inclined outward and rearward.

[0057] During use, when the hydraulic pressure in front of the rotor 21 increases, the elastic ring 30 opens under the action of the hydraulic pressure, and the gap between the rotor 21 and the inner wall of the housing is reduced, which is beneficial to further increase the hydraulic pressure in front of the rotor 21 and increase the thrust on the rotor 21.

[0058] The thickness of the elastic ring 30 gradually decreases from the side close to the fixing sleeve 29 to the side far away from the fixing sleeve 29 .

[0059] When in use, this structure has high strength and facilitates the elastic ring 30 to open under the action of hydraulic pressure.

[0060] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. A hydraulically controlled hydraulic retarder, comprising a housing, a rotating shaft (18) rotatably connected to the housing and extending into the housing, characterized in that: A rotor (21) is installed on the portion of the rotating shaft (18) located inside the housing and is capable of rotating together with the rotating shaft (18) and moving axially along the rotating shaft (18). A rotor resetting device is installed between the rotor (21) and the rotating shaft (18). A stator (22) located behind the rotor (21) is also installed inside the housing. A front liquid inlet (3) located in front of the rotor (21), a rear liquid inlet (4) located between the rotor (21) and the stator (22), and a rear liquid discharge port (12) located between the rotor (21) and the stator (22) are provided on the housing. The front liquid inlet (3) and the rear liquid inlet (4) are connected to a liquid supply system.

2. The hydraulic control type hydraulic retarder according to claim 1, characterized in that: The liquid supply system comprises a main liquid inlet pipe (9), the main liquid inlet pipe (9) being connected to a front liquid inlet pipe (5) connected to a front liquid inlet port (3) and a rear liquid inlet pipe (6) connected to a rear liquid inlet port (4), a main liquid inlet valve (10) being installed on the main liquid inlet pipe (9), a front liquid valve (7) being installed on the front liquid inlet pipe (5), and a rear liquid inlet valve (8) being installed on the rear liquid inlet pipe (6).

3. The hydraulic control type hydraulic retarder according to claim 2, characterized in that: The rear liquid discharge port (12) is connected to a rear liquid discharge pipe (14), and a rear liquid discharge valve (16) is installed on the rear liquid discharge pipe (14).

4. The hydraulic control type hydraulic retarder according to claim 1, characterized in that: The housing is also provided with a front liquid discharge port (11) located in front of the rotor (21).

5. The hydraulic control type hydraulic retarder according to claim 4, characterized in that: The front liquid discharge port (11) is connected to a front liquid discharge pipe (13), and a front liquid discharge valve (15) is installed on the front liquid discharge pipe (13).

6. The hydraulically controlled hydraulic retarder according to any one of claims 1 to 5, characterized in that: A sliding sleeve (25) is slidably sleeved on the rotating shaft (18), a keyway (28) is provided on the rotating shaft (18), a spline (27) matching with the keyway (28) is provided on the inner side of the sliding sleeve (25), and the rotor (21) is mounted on the sliding sleeve (25).

7. The hydraulic control type hydraulic retarder according to claim 6, characterized in that: The rotating shaft (18) has a rear shoulder (24) located behind the sliding sleeve (25), and the rotor resetting device includes a spring (26) sleeved on the rotating shaft (18), one end of the spring (26) abuts against the rear shoulder (24), and the other end abuts against the sliding sleeve (25).

8. The hydraulic control type hydraulic retarder according to claim 6, characterized in that: The rotating shaft (18) has a front shoulder (23) located in front of the sliding sleeve (25).

9. The hydraulically controlled hydraulic retarder according to any one of claims 1 to 5, characterized in that: A fixing sleeve (29) is mounted on the circumferential surface of the rotor (21). An elastic ring (30) is arranged along the circumference of the fixing sleeve (29). One side edge of the elastic ring (30) is connected to the fixing sleeve (29), and the other side edge is arranged to be inclined in an outward and rearward direction.

10. The hydraulic control type hydraulic retarder according to claim 9, characterized in that: The thickness of the elastic ring (30) gradually decreases from a side close to the fixing sleeve (29) to a side far from the fixing sleeve (29).

Images