An adjustable hydraulic coupling device

Abstract

The present invention discloses an adjustable hydraulic coupling device, which belongs to the technical field of transmission equipment. It comprises: a base, a cylinder, a left sleeve and a right sleeve. The cylinder is horizontally fixedly installed in the base. The transmission mechanism comprises an output shaft, a turbine assembly and a guide tube. The turbine assembly comprises a sleeve, multiple groups of blade components and a push-pull component. The blade component comprises a support rod, an inner blade, an outer blade, multiple springs and balls. The guide tube is conical, and the front end is fixedly connected to the inner wall of the right sleeve. The push-pull component is used to drive the sleeve to move, and an adjustment component is provided on the rear side of the sleeve. The present invention effectively solves the problem that the spacing and specifications of the two working wheels are fixed structures. When working, the torque transmission can only be changed by adjusting the rotation speed of the input end, and the time effect is relatively slow, which affects the efficiency of timely adjustment of the transmission.

Description

Technical Field

[0001] The invention relates to the technical field of transmission equipment, in particular to an adjustable hydraulic coupling device. Background Art

[0002] A hydraulic coupling device is a hydraulic transmission device used to connect a power source with a working machine and transmit torque by changing the kinetic energy of the liquid. The characteristic of the hydraulic coupling device is that it can achieve flexible transmission. For example, in a car, it can alleviate the impact between the engine and the transmission to a certain extent, allowing the vehicle to start more smoothly.

[0003] There are two working wheels in the hydraulic coupling device, the driving wheel is called a pump wheel, and the driven wheel is called a turbine. After the pump wheel and the turbine are assembled, an annular cavity is formed, and the cavity is filled with working oil. For example, the utility model patent with announcement number CN205173403U discloses a hydraulic coupling device, including a pump impeller and a turbine impeller. The utility model patent with announcement number CN204755821U discloses a hydraulic coupling equipped with a silencer, in which a pump wheel is installed on the left side of the shell, and a turbine is installed on the right side of the shell. In the above scheme, the spacing and specifications of the two working wheels are fixed structures. When working, the torque transmission can only be changed by adjusting the rotation speed of the input end, and the time effect is relatively slow, which affects the efficiency of timely adjustment of the transmission. Summary of the invention

[0004] The purpose of the present invention is to provide an adjustable hydraulic coupling device to solve the problem that the spacing and specifications of the two working wheels proposed in the above background technology are fixed structures, and when working, the torque transmission can only be changed by adjusting the rotation speed of the input end, which is relatively slow and affects the efficiency of timely adjustment of the transmission.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] An adjustable hydraulic coupling device comprises: a base, a cylinder, a left seal and a right seal, wherein the cylinder is horizontally fixedly installed in the base;

[0007] The left and right envelopes are respectively slidably sleeved on the left and right sides of the cylinder body, and a transmission mechanism is arranged in the right envelope, and the transmission mechanism includes an output shaft, a turbine assembly and a guide cylinder. The output shaft is horizontally rotatably sleeved in the right envelope, and the guide cylinder is horizontally fixedly installed inside the right envelope. The turbine assembly is arranged on the output shaft and is located in the guide cylinder.

[0008] The turbine assembly includes a sliding sleeve, a plurality of blade components and a push-pull component, wherein the sliding sleeve is horizontally slidingly sleeved on the output shaft, the plurality of blade components are arranged outside the sliding sleeve and are evenly distributed in a ring shape, and the push-pull component is arranged on the front side of the sliding sleeve;

[0009] The blade component includes a support rod, an inner blade, an outer blade, a plurality of springs and a ball bearing. The support rod is rotatably mounted on the outside of the sliding sleeve, the inner blade is fixedly mounted on the outer end of the support rod, the outer blade is slidingly sleeved in the inner blade, a plurality of springs are mounted inside the inner blade, and the two ends are respectively fixedly connected to the inner wall of the inner blade and the end of the outer blade, the ball bearing is rollingly embedded in the outer end of the outer blade and is in rolling contact with the inner wall of the guide tube;

[0010] The guide tube is conical, and the front end is fixedly connected to the inner wall of the right envelope. The push-pull component is used to drive the sliding sleeve to move, and an adjustment component is provided on the rear side of the sliding sleeve.

[0011] As a preferred technical solution of the present invention, an input shaft is rotatably installed in the left envelope, a pump wheel is fixedly installed on the inner end of the input shaft, and a coupling mechanism is slidingly sleeved on the ends of the input shaft and the output shaft that are away from each other.

[0012] As a preferred technical solution of the present invention, the push-pull component includes a vertical pole, a ring body and two first telescopic cylinders. The ring body is rotatably installed at the front end of the sliding sleeve, and the vertical pole is vertically fixed in the right sleeve. The two first telescopic cylinders are horizontally arranged and symmetrically distributed on the upper and lower sides of the output shaft. The two ends of the first telescopic cylinder are respectively fixedly connected to the rear side of the vertical pole and the front side of the ring body.

[0013] As a preferred technical solution of the present invention, the adjustment assembly includes a retaining ring, multiple rocker arms, multiple connecting rods and multiple pins. The retaining ring is fixedly sleeved on the output shaft, and the multiple pins are fixedly installed on the outside of the retaining ring and evenly distributed in a ring shape. The multiple rocker arms are respectively fixedly sleeved on multiple support rods, and the two ends of the multiple connecting rods are respectively hinged to the multiple pins and the rocker arms.

[0014] As a preferred technical solution of the present invention, a liquid collecting groove and a liquid drain groove are respectively provided on the inner wall and the outer wall of the right envelope, and the liquid collecting groove and the liquid drain groove are connected by a plurality of overflow holes. The liquid collecting groove is located on the rear side of the guide cylinder, and reflux grooves are symmetrically provided on both sides of the inner wall of the cylinder, and the two reflux grooves are connected by a plurality of reflux holes. A plurality of leakage holes are provided in the left envelope, and the plurality of leakage holes are all inclined, and the two ends are respectively connected to the reflux groove on the front side and the front side of the pump wheel.

[0015] As a preferred technical solution of the present invention, a first one-way valve joint and a second one-way valve joint are fixedly installed on the bottom side of the cylinder, and sealing rings are fixedly embedded in the inner wall of the cylinder at both sides of the two reflux grooves. The inner wall of the sealing ring is in sliding contact with the outer wall of the left and right envelopes, and a plurality of second telescopic cylinders are horizontally arranged at one end of the left and right envelopes that are close to each other, and the two ends of the plurality of second telescopic cylinders are respectively fixedly connected to one end of the left and right envelopes that are close to each other.

[0016] Compared with the prior art, the present invention provides an adjustable hydraulic coupling device, which has the following beneficial effects:

[0017] (1) The present invention drives the blade component to move by the push-pull component, adjusts the length of the blade component, and fine-tunes the spacing between the pump wheel and the turbine assembly, thereby adjusting the torque transmission efficiency. In conjunction with the input shaft speed adjustment, the torque transmission condition can be adjusted more quickly, and better adjustment time efficiency can be obtained;

[0018] (2) With the cooperation of the adjustment component and the push-pull component, the inclination angle of the blade component can be changed, and the torque can be further adjusted, which makes the torque adjustment faster;

[0019] (3) Under the action of the second telescopic cylinder, the distance between the left and right envelopes can be changed, thereby adjusting the distance between the pump wheel and the turbine assembly, changing the length of the oil path, changing the resistance, and changing the impact force on the turbine assembly, thereby further increasing the size of the surface torque and coordinating the adjustment of the turbine assembly itself to improve the efficiency of the torque change. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of the three-dimensional structure of an adjustable hydraulic coupling device proposed by the present invention;

[0021] Figure 2 A schematic diagram of a partial cross-sectional three-dimensional structure of an adjustable hydraulic coupling device proposed by the present invention;

[0022] Figure 3 A schematic diagram of a partial cross-sectional structure of an adjustable hydraulic coupling device proposed by the present invention;

[0023] Figure 4 A schematic diagram of a partial cross-sectional structure of a blade component in an adjustable hydraulic coupling device proposed by the present invention;

[0024] Figure 5 for Figure 2 A magnified view of the structure in Figure 2.

[0025] In the figure: 1, base; 2, cylinder; 3, left envelope; 4, right envelope; 5, output shaft; 6, guide tube; 7, sliding sleeve; 8, support rod; 9, inner blade; 10, outer blade; 11, spring; 12, ball; 13, input shaft; 14, pump wheel; 15, coupling mechanism; 16, vertical rod; 17, ring body; 18, first telescopic cylinder; 19, retaining ring; 20, rocker arm; 21, connecting rod; 22, pin rod; 23, collecting tank; 24, drain tank; 25, overflow hole; 26, reflux tank; 27, reflux hole; 28, leakage hole; 29, first one-way valve joint; 30, second one-way valve joint; 31, sealing ring; 32, second telescopic cylinder. DETAILED DESCRIPTION

[0026] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, what is described is only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] See also Figure 1-5 , an adjustable hydraulic coupling device, comprising: a base 1, a cylinder 2, a left envelope 3 and a right envelope 4, the cylinder 2 is horizontally fixedly installed in the base 1, the left envelope 3 and the right envelope 4 are respectively slidably sleeved on the left and right sides of the cylinder 2, a transmission mechanism is arranged in the right envelope 4, the transmission mechanism comprises an output shaft 5, a turbine assembly and a guide tube 6, the output shaft 5 is horizontally rotatably sleeved in the right envelope 4, the guide tube 6 is horizontally fixedly installed inside the right envelope 4, the turbine assembly is arranged on the output shaft 5 and is located in the guide tube 6, the turbine assembly comprises a sliding sleeve 7, a plurality of vane components and a push-pull component, the sliding sleeve 7 is horizontally slidably sleeved on the output shaft 5, the plurality of vane components are all arranged on the outside of the sliding sleeve 7 and are evenly distributed in a ring shape, the push-pull component is arranged on the front side of the sliding sleeve 7, the vane component comprises a support rod 8, an inner vane 9, an outer vane 10, an inner vane 11, an outer vane 12 and an outer vane 13. The vane 10, multiple springs 11 and balls 12, the support rod 8 is rotatably installed on the outside of the sliding sleeve 7, the inner vane 9 is fixedly installed on the outer end of the support rod 8, the outer vane 10 is slidably sleeved in the inner vane 9, multiple springs 11 are installed inside the inner vane 9, and the two ends are respectively fixedly connected to the inner wall of the inner vane 9 and the end of the outer vane 10, the balls 12 are rollingly embedded in the outer end of the outer vane 10, and are in rolling contact with the inner wall of the guide tube 6. During operation, the vane component is impacted, driving the sliding sleeve 7 to rotate, and the sliding sleeve 7 drives the output shaft 5 to rotate. During the rotation of the vane component, the balls 12 are always in rolling contact with the inner wall of the guide tube 6 under the elastic force of the spring 11. The guide tube 6 is conical, and the front end is fixedly connected to the inner wall of the right sealing sleeve 4. The push-pull component is used to drive the sliding sleeve 7 to move, and an adjustment component is provided on the rear side of the sliding sleeve 7.

[0028] The entire device is controlled by a control terminal. Since the control terminal is a commonly used device and belongs to existing mature technology, its electrical connection relationship and specific circuit structure will not be described in detail here.

[0029] An input shaft 13 is rotatably installed in the left sleeve 3, and a pump wheel 14 is fixedly installed on the inner end of the input shaft 13. The input shaft 13 and the output shaft 5 are both slidably sleeved with a coupling mechanism 15 at one end away from each other. The coupling mechanism 15 on the input shaft 13 is connected to the output end of the external power source, and the coupling mechanism 15 on the output shaft 5 is connected to the input end of the equipment to be driven, thereby realizing the transmission of torque.

[0030] The push-pull component includes a vertical rod 16, a ring body 17 and two first telescopic cylinders 18. The ring body 17 is rotatably installed at the front end of the sliding sleeve 7, the vertical rod 16 is vertically fixed in the right sleeve 4, and the two first telescopic cylinders 18 are horizontally arranged and symmetrically distributed on the upper and lower sides of the output shaft 5. The two ends of the first telescopic cylinder 18 are fixedly connected to the rear side of the vertical rod 16 and the front side of the ring body 17 respectively.

[0031] The adjusting assembly includes a retaining ring 19, multiple rocker arms 20, multiple connecting rods 21 and multiple pins 22. The retaining ring 19 is fixedly sleeved on the output shaft 5. The multiple pins 22 are fixedly installed on the outside of the retaining ring 19 and are evenly distributed in a ring shape. The multiple rocker arms 20 are respectively fixedly sleeved on the multiple support rods 8, and the two ends of the multiple connecting rods 21 are respectively hinged to the multiple pins 22 and the rocker arms 20.

[0032] When using this device for transmission, the coupling mechanism 15 on the input shaft 13 and the coupling mechanism 15 on the output shaft 5 are respectively connected to the output end of the power source device and the input end of the device to be driven, and then the device is started. The power source device drives the pump wheel 14 to rotate through the input shaft 13. The pump wheel 14 drives the oil flow to impact the turbine assembly. The turbine assembly rotates, driving the output shaft 5 to rotate, and torque is transmitted.

[0033] When the torque needs to be adjusted, in addition to changing the rotation speed of the input shaft 13, the first telescopic cylinder 18 is started through the external control terminal. The first telescopic cylinder 18 extends to push the ring body 17. The ring body 17 drives the sleeve 7 to slide backward on the output shaft 5. The sleeve 7 drives multiple groups of blade components to move backward. Under the interference of the guide tube 6, the outer blade 10 is compressed and the spring 11 is compressed, so that the diameter of the entire impeller component becomes smaller and the lever arm becomes shorter, thereby reducing the torque. At the same time, the distance between the turbine assembly and the pump wheel 14 becomes larger, which will cause the circulation path of the working oil to become longer and the resistance to increase, so that the impact force of the oil is reduced, and the torque is further reduced.

[0034] In addition, when the sleeve 7 moves, with the cooperation of multiple connecting rods 21, the rocker arm 20 drives the strut 8 to deflect, and the strut 8 drives the blade component to deflect, so that its inclination angle becomes smaller, and the component of the force of the oil flow in the tangential direction will be reduced, that is, the tangential force is reduced, and the torque is further reduced. When the sleeve 7 moves backward, the inclination angle and length of the blade component are reduced, and at the same time, the distance between itself and the pump wheel 14 is increased, thereby reducing the torque, which is convenient for rapid adjustment of torque transmission.

[0035] When the torque transmission needs to be increased, the first telescopic cylinder 18 is shortened, the sleeve 7 moves forward, and the spring 11 is extended, so that the outer blade 10 moves outward, thereby extending the blade component, reducing the distance between the pump wheel 14 and the turbine assembly, and increasing the inclination angle of the blade component, thereby increasing the torque.

[0036] The inner wall and outer wall of the right envelope 4 are respectively provided with a collecting groove 23 and a drain groove 24, and the collecting groove 23 and the drain groove 24 are connected by a plurality of overflow holes 25. The collecting groove 23 is located at the rear side of the guide tube 6, and reflux grooves 26 are symmetrically provided on both sides of the inner wall of the cylinder body 2. The two reflux grooves 26 are connected by a plurality of reflux holes 27. A plurality of leakage holes 28 are provided in the left envelope 3, and the plurality of leakage holes 28 are all inclined, and the two ends are respectively connected with the reflux groove 26 located at the front side and the front side of the pump wheel 14.

[0037] A first one-way valve joint 29 and a second one-way valve joint 30 are fixedly installed on the bottom side of the cylinder 2, and sealing rings 31 are fixedly embedded in the inner wall of the cylinder 2 located on both sides of the two reflux grooves 26. The inner wall of the sealing ring 31 is in sliding contact with the outer side walls of the left envelope 3 and the right envelope 4. A plurality of second telescopic cylinders 32 are horizontally arranged at one end of the left envelope 3 and the right envelope 4 that are close to each other, and both ends of the plurality of second telescopic cylinders 32 are respectively fixedly connected to one end of the left envelope 3 and the right envelope 4 that are close to each other.

[0038] During operation, the oil flows backward from the front side of the pump wheel 14 after being pressurized by the pump wheel 14, and after passing through the cylinder 2, it impacts the turbine assembly, and the turbine assembly drives the output shaft 5 to rotate. Then the oil flows to the rear side of the turbine assembly, and is discharged through the tail end of the guide cylinder 6, and gathers in the collecting tank 23. Under the action of pressure, it flows into the drainage tank 24 through multiple overflow holes 25, flows into the reflux tank 26 on the right side of the cylinder 2, and then flows into the reflux tank 26 on the left side of the cylinder 2 through multiple reflux holes 27, and finally flows back to the front area of ​​the pump wheel 14 through multiple leakage holes 28 to complete the cycle.

[0039] When adjusting the torque, the second telescopic cylinder 32 can be started to extend, and the distance between the left sleeve 3 and the right sleeve 4 can be increased, so that the distance between the pump wheel 14 and the turbine assembly can be increased, the oil flow path can be longer, the resistance can be increased, and the impact force on the turbine assembly can be reduced, thereby reducing the torque; the second telescopic cylinder 32 can be shortened, so that the distance between the pump wheel 14 and the turbine assembly can be reduced, the oil flow path can be shortened, the resistance can be reduced, the impact force on the turbine assembly can be increased, and the torque can be increased; in combination with the local movement of the sleeve 7, the efficiency of torque transmission can be changed by changing the distance between the pump wheel 14 and the turbine assembly.

[0040] The first one-way valve joint 29 guides from the outside to the inside of the cylinder 2, and the second one-way valve joint 30 conducts from the inside of the cylinder 2 to the outside. The first one-way valve joint 29 and the second one-way valve joint 30 are respectively connected to the output end and the input end of the external oil supply equipment. When the second telescopic cylinder 32 is extended or shortened, the effective volume between the left envelope 3 and the right envelope 4 changes, and the external oil supply equipment discharges or replenishes the oil in the effective volume to ensure that the effective volume is filled with oil.

[0041] When the torque size needs to be changed, when the speed of the input shaft 13 is changed, the effective diameter and inclination angle of the turbine assembly, as well as the distance between the turbine assembly and the pump wheel 14 can also be changed simultaneously, thereby improving the timeliness of the torque transmission change and facilitating the rapid response of the equipment.

[0042] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An adjustable hydraulic coupling device, comprising: A base (1), a cylinder (2), a left envelope (3) and a right envelope (4), wherein the cylinder (2) is horizontally fixedly installed in the base (1); The invention is characterized in that: the left envelope (3) and the right envelope (4) are respectively slidably sleeved on the left and right sides of the cylinder (2); a transmission mechanism is arranged inside the right envelope (4); the transmission mechanism comprises an output shaft (5), a turbine assembly and a guide cylinder (6); the output shaft (5) is horizontally rotatably sleeved inside the right envelope (4); the guide cylinder (6) is horizontally fixedly installed inside the right envelope (4); the turbine assembly is arranged on the output shaft (5) and is located inside the guide cylinder (6); The turbine assembly comprises a sliding sleeve (7), a plurality of groups of blade components and a push-pull component, the sliding sleeve (7) is horizontally slidingly sleeved on the output shaft (5), the plurality of groups of blade components are all arranged outside the sliding sleeve (7) and are evenly distributed in a ring shape, and the push-pull component is arranged on the front side of the sliding sleeve (7); The blade component comprises a support rod (8), an inner blade plate (9), an outer blade plate (10), a plurality of springs (11) and a ball (12); the support rod (8) is rotatably mounted on the outside of the sliding sleeve (7); the inner blade plate (9) is fixedly mounted on the outer end of the support rod (8); the outer blade plate (10) is slidably sleeved in the inner blade plate (9); the plurality of springs (11) are all mounted inside the inner blade plate (9), and the two ends are respectively fixedly connected to the inner wall of the inner blade plate (9) and the end of the outer blade plate (10); the ball (12) is rollingly embedded in the outer end of the outer blade plate (10) and is in rolling contact with the inner wall of the guide tube (6); The guide tube (6) is conical, and its front end is fixedly connected to the inner wall of the right sealing sleeve (4). The push-pull component is used to drive the sliding sleeve (7) to move, and an adjustment component is provided on the rear side of the sliding sleeve (7); The push-pull component comprises a vertical rod (16), a ring body (17) and two first telescopic cylinders (18); the ring body (17) is rotatably mounted on the front end of the sliding sleeve (7); the vertical rod (16) is vertically fixedly mounted in the right sleeve (4); the two first telescopic cylinders (18) are horizontally arranged and symmetrically distributed on the upper and lower sides of the output shaft (5); and the two ends of the first telescopic cylinder (18) are respectively fixedly connected to the rear side of the vertical rod (16) and the front side of the ring body (17); The adjustment assembly comprises a clamping ring (19), a plurality of rocker arms (20), a plurality of connecting rods (21) and a plurality of pins (22); the clamping ring (19) is fixedly sleeved on the output shaft (5); the plurality of pins (22) are fixedly mounted on the outside of the clamping ring (19) and are evenly distributed in a ring shape; the plurality of rocker arms (20) are respectively fixedly sleeved on the plurality of support rods (8); and the ends of the plurality of connecting rods (21) are respectively hinged to the plurality of pins (22) and the rocker arms (20).

2. An adjustable hydraulic coupling device according to claim 1, characterized in that: An input shaft (13) is rotatably mounted in the left sealing sleeve (3), a pump wheel (14) is fixedly mounted on the inner end of the input shaft (13), and a coupling mechanism (15) is slidably sleeved on the ends of the input shaft (13) and the output shaft (5) that are away from each other.

3. The adjustable hydraulic coupling device according to claim 1, characterized in that: The inner wall and outer wall of the right envelope (4) are respectively provided with a liquid collecting groove (23) and a liquid drain groove (24), the liquid collecting groove (23) and the liquid drain groove (24) being connected via a plurality of overflow holes (25), the liquid collecting groove (23) being located at the rear side of the guide cylinder (6), the inner wall of the cylinder (2) being symmetrically provided with reflux grooves (26), the two reflux grooves (26) being connected via a plurality of reflux holes (27), the left envelope (3) being provided with a plurality of drain holes (28), the plurality of drain holes (28) being arranged obliquely, and the two ends of the plurality of drain holes are respectively connected with the reflux groove (26) located at the front side and the front side of the pump wheel (14).

4. An adjustable hydraulic coupling device according to claim 3, characterized in that: A first one-way valve joint (29) and a second one-way valve joint (30) are fixedly mounted on the bottom side of the cylinder (2); sealing rings (31) are fixedly embedded in the inner wall of the cylinder (2) at both sides of the two reflux grooves (26); the inner wall of the sealing ring (31) is in sliding contact with the outer wall of the left seal (3) and the right seal (4); a plurality of second telescopic cylinders (32) are horizontally mounted at one end of the left seal (3) and the right seal (4) close to each other; and two ends of the plurality of second telescopic cylinders (32) are respectively fixedly connected to one end of the left seal (3) and the right seal (4) close to each other.

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