Low-noise hydraulic coupler

Abstract

The utility model provides a low-noise type hydraulic coupler, belongs to the technical field of hydraulic couplers, and aims to solve the problems that when an impeller rotates, high-speed liquid obliquely impacts on turbine blades, the energy conversion efficiency is low, bolts between two cover plates are prone to loosening, and the efficiency is poor. The device comprises two sets of cover plates which are symmetrically arranged, the surface of the cover plate on the left side is rotationally connected with an input shaft, the front end of the input shaft is fixedly provided with an impeller, the surface of the cover plate on the right side is rotationally connected with an output shaft, and the front end face of the output shaft is fixedly provided with a turbine. According to the utility model, the steering wheel is rotationally connected to the lower position in the connecting rod, liquid driven by the impeller is firstly blown to the steering wheel, and the blades of the steering wheel can steer the flowing direction of the fluid by nearly 90 degrees, so that the effects of accelerating and guiding the liquid are achieved, and the liquid can be smoothly transferred; therefore, power transmission and torque increment are realized.

Description

Technical Field

[0001] The utility model belongs to the technical field of fluid couplings, and more specifically, particularly relates to a low-noise fluid coupling. Background Art

[0002] The impeller and the turbine of the fluid coupling form a closed working chamber in which liquid can circulate, and it is widely used in the transmission of automobiles to make the vehicle run more smoothly. However, there are still some areas for improvement in the existing fluid couplings.

[0003] The existing fluid couplings have the following two disadvantages:

[0004] Firstly, when the impeller rotates, the high-speed liquid impacts the turbine blades obliquely, and this method has a low energy conversion efficiency.

[0005] Secondly, the two covers of the coupling are connected by bolts. However, during actual operation, the bolts are prone to loosening, and the two covers cannot fit tightly together, affecting the normal operation of the coupling. Content of the Utility Model

[0006] In order to solve the above technical problems, the utility model provides a low-noise fluid coupling to solve the problems that when the existing impeller rotates, the high-speed liquid impacts the turbine blades obliquely, and this method has a low energy conversion efficiency, and the two covers of the coupling are connected by bolts. However, during actual operation, the bolts are prone to loosening, and the two covers cannot fit tightly together, affecting the normal operation of the coupling.

[0007] The purpose and effect of a low-noise fluid coupling of the utility model are achieved by the following specific technical means: A low-noise fluid coupling includes covers;

[0008] Two groups of covers are symmetrically arranged. An input shaft is rotatably connected to the surface of the left cover, and an impeller is fixedly installed at the front end of the input shaft. An output shaft is rotatably connected to the surface of the right cover, and a turbine is fixedly installed on the front end surface of the output shaft.

[0009] A locking screw, and a through-shaped second card slot is provided on the surface of the locking screw;

[0010] A fixing ring is located between the two covers. Eight second threaded holes are respectively provided on the front and rear surfaces of the fixing ring, and the eight second threaded holes are arranged in an annular structure;

[0011] Two connecting rods are provided. The outer end surfaces of the connecting rods are fixedly installed on the inner end surface of the fixing ring, and a steering wheel is rotatably connected to the lower position of the inner end surface of the connecting rods.

[0012] Further, the outer end portion of the cover plate is a bowl-shaped structure, the inner end portion of the cover plate is a circular plate structure, and eight first threaded holes are annularly provided on the surface of the cover plate.

[0013] Further, four first clamping grooves are annularly provided on the inner end surface of the first threaded hole, and the locking screw is sequentially connected inside the first threaded hole and the second threaded hole.

[0014] Further, when the second clamping groove at the outer end of the locking screw is aligned with the first clamping groove on the surface of the first threaded hole, the fixing pin is clamped inside the first clamping groove and the second clamping groove.

[0015] Further, a rubber clamping strip is fixedly installed on the inner end surface of the cover plate. The rubber clamping strip is a circular ring structure, and a fixing clamping groove is provided on each of the front and rear surfaces of the fixing ring. The rubber clamping strip is clamped inside the fixing clamping groove.

[0016] Further, the blades on the outer end surface of the steering wheel are in an inclined structure, and the inclination angle of the outer end blades of the steering wheel is 45 degrees.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] In the utility model, two connecting rods are fixedly installed on the inner end surface of the fixing ring. A steering wheel is rotatably connected at the lower position inside the connecting rods. The liquid driven by the impeller will first blow towards the steering wheel. The blades of the steering wheel can turn the flow direction of the fluid by nearly 90 degrees, playing a role in accelerating and guiding the liquid, promoting the smooth transmission of the liquid, and thus realizing power transmission and torque increase.

[0019] In addition, four first clamping grooves are annularly provided on the surface of the first threaded hole, and a second clamping groove is provided on the surface of the locking screw. When the worker connects the locking screw inside the first threaded hole, the second clamping groove at the outer end of the locking screw can be aligned with the first clamping groove, and then the fixing pin is clamped in the gap between the first clamping groove and the second clamping groove, which can improve the stability of the locking screw inside the first threaded hole and prevent the locking screw from loosening.

[0020] In addition, fixing clamping grooves are respectively provided at both ends of the front and rear of the fixing ring, and a rubber clamping strip is installed on the inner end surface of the cover plate. When the locking screw docks the cover plate and the fixing ring together, the rubber clamping strip is clamped in the fixing clamping groove on the surface of the fixing ring, which can improve the sealing performance between the cover plate and the fixing ring and prevent liquid from overflowing. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is an exploded structural schematic diagram of the overall device of the utility model.

[0022] Figure 2 is a structural schematic diagram of the overall device of the utility model.

[0023] Figure 3 It is a schematic structural diagram of the internal device of the fixing ring and the cover plate of the present utility model.

[0024] Figure 4 It is a schematic cross-sectional structure diagram of the locking screw of the present utility model.

[0025] Figure 5 It is a schematic cross-sectional structure diagram of the cover plate of the present utility model.

[0026] Figure 6 It is the Figure 5 Schematic diagram of the partial enlarged structure at position A in the present utility model.

[0027] Figure 7 It is a schematic structural diagram of the connecting rod and the steering wheel of the present utility model.

[0028] In the figure, the corresponding relationship between the component names and the drawing reference numbers is as follows:

[0029] 1. Cover plate; 101. Rubber strip; 102. First threaded hole; 1021. First card slot; 2. Input shaft; 201. Impeller; 3. Output shaft; 301. Turbine; 4. Locking screw; 401. Second card slot; 5. Fixing ring; 501. Second threaded hole; 502. Fixed card slot; 6. Connecting rod; 7. Steering wheel. Specific embodiments

[0030] The following further describes the embodiments of the present utility model in detail with reference to the drawings and examples.

[0031] Embodiment 1:

[0032] As shown in Figure 1 to Figure 7 shown:

[0033] The present utility model provides a low-noise hydraulic coupling, including a cover plate 1;

[0034] Two groups of cover plates 1 are symmetrically provided. The input shaft 2 is rotatably connected to the surface of the left cover plate 1, and the impeller 201 is fixedly installed at the front end of the input shaft 2. The output shaft 3 is rotatably connected to the surface of the right cover plate 1, and the turbine 301 is fixedly installed on the front end surface of the output shaft 3;

[0035] A locking screw 4, and a through-shaped second card slot 401 is opened on the surface of the locking screw 4;

[0036] A fixing ring 5, the fixing ring 5 is located between the two cover plates 1, and eight second threaded holes 501 are respectively opened on the front and rear surfaces of the fixing ring 5, and the eight second threaded holes 501 are arranged in an annular structure;

[0037] There are two connecting rods 6. The outer end face of the connecting rod 6 is fixedly installed on the inner end face of the fixed ring 5, and a steering wheel 7 is rotatably connected to the lower position of the inner end face of the connecting rod 6.

[0038] Among them, the outer end part of the cover plate 1 is of a bowl-shaped structure, the inner end part of the cover plate 1 is of a circular plate structure, eight first threaded holes 102 are annularly arranged on the surface of the cover plate 1, and four first clamping grooves 1021 are annularly arranged on the inner end surface of the first threaded hole 102. The locking screw 4 is sequentially connected inside the first threaded hole 102 and the second threaded hole 501. When the second clamping groove 401 at the outer end of the locking screw 4 is aligned with the first clamping groove 1021 on the surface of the first threaded hole 102, the fixing pin is clamped inside the first clamping groove 1021 and the second clamping groove 401. When the worker connects the locking screw 4 inside the first threaded hole 102, the second clamping groove 401 at the outer end of the locking screw 4 can be aligned with the first clamping groove 1021, and then the fixing pin is clamped in the gap between the first clamping groove 1021 and the second clamping groove 401, which can improve the stability of the locking screw 4 inside the first threaded hole 102 and prevent the locking screw 4 from loosening.

[0039] Among them, a rubber strip 101 is fixedly installed on the inner end face of the cover plate 1. The rubber strip 101 is of an annular structure. A fixing clamping groove 502 is respectively arranged on the front and rear surfaces of the fixed ring 5. The rubber strip 101 is clamped inside the fixing clamping groove 502. The fixing clamping grooves 502 are respectively arranged at the front and rear ends of the fixed ring 5, and a rubber strip 101 is installed on the inner end face of the cover plate 1. When the locking screw 4 docks the cover plate 1 and the fixed ring 5 together, the rubber strip 101 is clamped in the fixing clamping groove 502 on the surface of the fixed ring 5, which can improve the sealing performance between the cover plate 1 and the fixed ring 5 and prevent liquid from overflowing.

[0040] Among them, the blades on the outer end face of the steering wheel 7 are of an inclined structure, and the inclination angle of the outer end blades of the steering wheel 7 is 45 degrees. The liquid driven by the impeller 201 will first blow towards the steering wheel 7. The blades of the steering wheel 7 can turn the flow direction of the fluid by nearly 90 degrees, playing a role in accelerating and guiding the liquid, promoting the smooth transmission of the liquid, and thus realizing power transmission and torque increase.

[0041] The specific usage method and function of this embodiment:

[0042] In the present utility model, two cover plates 1 and a fixed ring 5 are connected by a locking screw 4. There is liquid between the two cover plates 1 and the fixed ring 5. The surface of the left cover plate 1 is rotatably connected to an input shaft 2, and the front end of the input shaft 2 is rotatably connected to an impeller 201. When the impeller 201 rotates, it can throw the liquid away and generate centrifugal force. These liquids will impact the blades of the turbine 301 at high speed, driving the rotation of the turbine 301 and the output shaft 3, achieving the transfer of kinetic energy. The inner end face of the fixed ring 5 is fixedly installed with two connecting rods 6. A turning wheel 7 is rotatably connected to the lower position inside the connecting rod 6. The liquid driven by the impeller 201 will first blow towards the turning wheel 7. The blades of the turning wheel 7 can turn the flow direction of the fluid by nearly 90 degrees, playing a role in accelerating and guiding the liquid, enabling the liquid to be smoothly transmitted, thereby achieving power transmission and torque multiplication. Second threaded holes 501 are respectively formed on the front and rear end surfaces of the fixed ring 5, and first threaded holes 102 are evenly formed on the surface of the cover plate 1. Workers can sequentially connect the locking screw 4 in the first threaded hole 102 and the second threaded hole 501, thereby fixing the cover plate 1 and the fixed ring 5 together. Four first card slots 1021 are annularly formed on the surface of the first threaded hole 102, and a second card slot 401 is formed on the surface of the locking screw 4. When the worker connects the locking screw 4 inside the first threaded hole 102, the second card slot 401 at the outer end of the locking screw 4 can be aligned with the first card slot 1021, and then a fixing pin is clamped in the gap between the first card slot 1021 and the second card slot 401, which can improve the stability of the locking screw 4 inside the first threaded hole 102 and prevent the locking screw 4 from loosening. Fixing card slots 502 are respectively formed at the front and rear ends of the fixed ring 5, and a rubber strip 101 is installed on the inner end face of the cover plate 1. When the locking screw 4 docks the cover plate 1 and the fixed ring 5 together, the rubber strip 101 is clamped in the fixing card slot 502 on the surface of the fixed ring 5, which can improve the sealing performance between the cover plate 1 and the fixed ring 5 and prevent liquid from overflowing.

Claims

1. A low-noise hydraulic coupler, characterized by: The invention comprises a cover plate (1), wherein the cover plate (1) is symmetrically provided with two groups, the surface of the left cover plate (1) is rotatably connected to the input shaft (2), the front end of the input shaft (2) is fixedly mounted with an impeller (201), and the surface of the right cover plate (1) is rotatably connected to the output shaft (3), the front end surface of the output shaft (3) is fixedly mounted with a turbine (301); a locking screw (4), wherein the surface of the locking screw (4) is provided with a through-shaped second clamping groove (401); a fixing ring (5), wherein the fixing ring (5) is located between the two cover plates (1), and the front and rear surfaces of the fixing ring (5) are respectively provided with eight second threaded holes (501), and the eight second threaded holes (501) are arranged in a ring structure; and two connecting rods (6), wherein the outer end surface of the connecting rod (6) is fixedly mounted on the inner end surface of the fixing ring (5), and the position below the inner end surface of the connecting rod (6) is rotatably connected to a steering wheel (7).

2. A low-noise hydraulic coupling according to claim 1, characterized in that: The outer end of the cover plate (1) is a bowl-shaped structure, the inner end of the cover plate (1) is a circular plate-shaped structure, and the surface of the cover plate (1) is provided with eight first threaded holes (102) in a circular shape.

3. A low-noise hydraulic coupling according to claim 2, characterized in that: The inner end surface of the first threaded hole (102) is provided with four first clamping grooves (1021) in an annular shape, and the locking screw (4) is sequentially connected to the inside of the first threaded hole (102) and the second threaded hole (501).

4. A low-noise hydraulic coupling according to claim 1, characterized in that: When the second clamping groove (401) at the outer end of the locking screw (4) is aligned with the first clamping groove (1021) on the surface of the first threaded hole (102), the fixing pin is clamped inside the first clamping groove (1021) and the second clamping groove (401).

5. The low-noise hydraulic coupling according to claim 1, characterized in that: A rubber clip (101) is fixedly mounted on the inner end surface of the cover plate (1). The rubber clip (101) is in a circular ring structure. A fixed slot (502) is respectively provided on the front and rear surfaces of the fixing ring (5). The rubber clip (101) is clipped into the inside of the fixed slot (502).

6. A low-noise hydraulic coupling according to claim 1, characterized in that: The blades on the outer end surface of the steering wheel (7) are in an inclined structure, and the inclination angle of the blades on the outer end of the steering wheel (7) is forty-five degrees.

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