CN211117428U

CN211117428U - Fluid type torque conversion device

Info

Publication number: CN211117428U
Application number: CN201922000801.9U
Authority: CN
Inventors: 丁世浩; 陈宁; 钱啟德; 王涛; 王宏卫; 张溥; 冯涛; 冯琦; 张超; 杨冰; 王文静; 王晓宁
Original assignee: Shaanxi Aero Space Power Hi Tech Co Ltd
Current assignee: Shaanxi Aero Space Power Hi Tech Co Ltd
Priority date: 2019-11-19
Filing date: 2019-11-19
Publication date: 2020-07-28
Anticipated expiration: 2029-11-19

Abstract

The utility model relates to a fluid type torque conversion device, solve the sealed mode of current torque converter vortex wheel hub and driven plate and make the structure of vortex wheel hub more complicated, thereby lead to the problem that the cost of torque converter is high, the assembly is complicated, the device includes the cover wheel shell, the pump wheel body, the input shaft, the driven plate, the holder, a spring, the driver plate, the turbine body, vortex wheel hub, the inner race, the guide wheel body, the outer race, the lock clutch, the pump impeller and the turbine, its special character is that the input shaft is the step axle, including main aspects and tip, the fixed opening sleeve that is provided with in middle part of driven plate, the opening sleeve suit is at the tip of input shaft, and be provided with the sealing washer between input shaft tip and the opening sleeve, the sealing washer is installed in the seal groove of input shaft, the cross-section of wheel hub is L shape structure, it includes fixed connection's horizontal sleeve and vertical annular plate, horizontal sleeve suit is at the main aspects of input shaft, and rotate with the input shaft simultaneously, vertical annular plate is fixed connection with the driver.

Description

Fluid type torque conversion device

Technical Field

The utility model relates to a moment conversion equipment, concretely relates to fluid formula moment conversion equipment.

Background

In a construction machine, a power source can output at a certain rotating speed, and a transmission mechanism matched with the power source can generate the situation that an output shaft is broken due to the sudden increase of input torque, so that an efficient torsion torque conversion device is necessary. The conventional torque conversion device is generally installed between a power source and a transmission case, and can effectively transmit the driving force of the power source to the transmission case by combining the coupling transmissibility of fluid and blades, and the fluid torque conversion device is also called as a torque converter.

The present torque converters comprise: the pump wheel is welded with the pump wheel body through the cover wheel, and the output of the engine is directly converted into the rotation of the pump wheel; the pump wheel drives the working oil to rotate, and then the turbine is driven to rotate; and the guide wheel is positioned between the turbine and the pump wheel and drives the working oil behind the turbine to return to the pump wheel, and the change of the torsional moment can be realized through the circular matching of the three parts.

In current torque converter, the seal structure in the middle of it is comparatively complicated, and the turbine hub realizes the sealed of whirlpool wheel hub, input shaft and driven plate through multichannel sealing washer, and this kind of sealed mode makes whirlpool wheel hub's structure more complicated, and whirlpool wheel hub's manufacturing shaping must be realized through the casting, and subsequent middle shaft hole processing requires highly, makes whirlpool wheel hub's manufacturing procedure comparatively complicated and loaded down with trivial details. Therefore, the sealing method not only makes the structure of the turbine hub complex and expensive, but also makes the assembly process complex and the maintenance difficult, and finally makes the production cost relatively high.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the sealed mode of current torque converter whirlpool wheel hub and driven plate and making whirlpool wheel hub's structure more complicated to lead to torque converter with high costs, assemble complicated problem, provide a fluid formula torque conversion equipment. The device has the advantages of low manufacturing cost, simple structure, low requirement on environment and the like.

The purpose of the utility model is realized through the following technical scheme:

a fluid type torque conversion device comprises a cover wheel shell, a pump wheel body, an input shaft, a driven disc, a retainer, springs, a driving disc, a turbine body, a turbine hub, an inner race, a guide wheel body, an outer race, a locking clutch, a pump wheel and a turbine, wherein the periphery of the inner side of the cover wheel shell and the periphery of the outer side of the pump wheel body are hermetically connected to form a mounting cavity, the input shaft is arranged in the mounting cavity, the driven disc and the turbine hub are sequentially sleeved on the input shaft and fixedly connected with the retainer, a plurality of groups of springs are annularly arranged in a groove in the periphery of the retainer, the outer side of the driving disc is in contact with two ends of the springs, a convex part of the outer side of the driving disc is inserted into a concave part of the retainer, the inner side of the driving disc is fixedly connected with the turbine body and the turbine hub, the inner race and the guide wheel body are sequentially sleeved on the input shaft, the inner race is positioned on one side of the turbine hub, the locking clutch is sleeved on the inner race, the outer race is positioned in the locking clutch and positioned in a circumferential notch of the guide wheel body, the right side of the pump wheel body is provided with the pump wheel, the input shaft is a stepped shaft, the input shaft is provided with a large end of a sleeve, a sleeve ring, an opening of the input shaft, a sleeve ring is fixedly connected with a sealing ring, a sealing ring of the input shaft, a sealing ring is fixedly connected with a sealing ring, a transverse input shaft, a sealing ring is arranged in the input.

Further, a paper-based friction plate is arranged on the outer side of the driven plate, and the cover wheel shell is in friction contact with the driven plate through the paper-based friction plate.

The connecting block is axially and vertically arranged on the outer side edge of the cover wheel shell, and the cover wheel hub is axially and vertically arranged in the center of the outer side of the cover wheel shell.

Further, the turbine hub and the input shaft are connected through a spline.

Further, the turbine hub is a component realized by a stamping process.

Further, the outer edge of the pump wheel body is provided with a balance block for realizing dynamic balance of the device in the operation process.

Furthermore, a pump hub is arranged on the outer side of the pump wheel body, and a second needle bearing is arranged on one side of the guide wheel body and the inner side of the pump hub.

Further, a retainer is arranged in the circumferential notch of the guide wheel body and located between the locking clutch and the turbine hub.

Further, a first needle bearing is disposed between the retainer and the turbine hub.

Furthermore, the inner side of the driving plate is fixedly connected with the turbine body and the turbine hub through second rivets, and the driven plate is fixedly connected with the retainer through first rivets.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. the utility model provides a fluid formula torque conversion equipment has changed driven plate and whirlpool wheel hub's structure, sets up the sealing washer simultaneously between input shaft and opening sleeve, when guaranteeing that the torque converter has better leakproofness, has also changed the manufacturing mode of turbine hub, and then has reduced product cost, improves, produces the property promotion to subsequent relevant technology and has important influence.

2. The utility model provides a fluid formula torque conversion device can improve original sealed mode, and its low in cost is more simple for torque converter structure in the past, has avoided the sealed mode that current multichannel sealing washer through whirlpool wheel hub realizes whirlpool wheel hub, input shaft and driven plate for whirlpool wheel hub has simple structure, assembly simply, characteristics such as transmission effect is good.

Drawings

FIG. 1 is a structural diagram of a fluid type torque converter according to the present invention;

fig. 2 is a partial enlarged view of the fluid torque converter of the present invention.

Reference numerals: 1-connecting block, 2-cage, 3-turbine inner ring, 4-shroud wheel shell, 5-second rivet, 6-turbine hub, 7-shroud hub, 8-driven disk, 9-turbine body, 10-drive plate, 11-first rivet, 12-paper-based friction plate, 13-spring, 14-balance block, 15-pump inner ring, 16-guide wheel body, 17-first needle bearing, 18-second needle bearing, 19-pump hub, 20-inner race, 21-lockup clutch, 22-outer race, 23-retainer, 24-pump wheel body, 25-pump wheel blade, 26-turbine blade, 27-input shaft, 28-seal ring, 29-split sleeve, 30-transverse sleeve, 31-vertical annular plate.

Detailed Description

The present invention will be described in further detail with reference to the following drawings and specific embodiments.

As shown in fig. 1 to 2, the fluid torque conversion device according to the present invention includes a shrouded wheel housing 4, a pump wheel body 24, an input shaft 27, a driven plate 8, a cage 2, a spring 13, a dial 10, a turbine body 9, a turbine hub 6, an inner race 20, a guide wheel body 16, an outer race 22, a lockup clutch 21, a connecting block 1, a shrouded wheel hub 7, a pump wheel, and a turbine wheel.

The inner periphery of the cover wheel shell 4 and the outer periphery of the pump wheel body 24 are hermetically welded to form a mounting cavity, the connecting block 1 is axially and vertically welded to the outer edge of the cover wheel shell 4, and the cover hub 7 is axially and vertically welded to the outer center of the cover wheel shell 4. The outer edge of the pump wheel body 24 is provided with a balance weight 14 for realizing dynamic balance of the device during operation. The input shaft 27 is arranged in the installation cavity, the driven plate 8 and the turbine hub 6 are sequentially sleeved on the input shaft 27, the driven plate 8 is fixedly connected with the retainer 2, a paper-based friction plate 12 is arranged on the outer side of the driven plate 8, the paper-based friction plate 12 is bonded on the driven plate 8 after being pressed at high temperature, and the cover wheel shell 4 is in friction contact with the driven plate 8 through the paper-based friction plate 12. A plurality of groups of springs 13 are arranged in the groove inner ring on the periphery of the retainer 2, the outer side of the drive plate 10 is in contact with two ends of the springs 13, the convex part of the outer side is inserted into the concave part of the retainer 2, and the inner side of the drive plate 10 is fixedly connected with the turbine body 9 and the turbine hub 6; the inner race 20 and the guide wheel body 16 are sleeved on the input shaft 27, the inner race 20 is positioned on one side of the turbine hub 6, the lockup clutch 21 is sleeved on the inner race 20, the outer race 22 is sleeved on the lockup clutch 21 and positioned in a circumferential notch of the guide wheel body 16, a pump wheel is arranged on the right side of the guide wheel body 16, and a turbine wheel is arranged on the left side of the guide wheel body. The turbine comprises a turbine body 9, turbine blades 26 and a turbine inner ring 3, wherein the turbine body 9 is connected with the turbine inner ring 3 through the turbine blades 26; the inner side of the turbine body 9 and the turbine inner ring 3 are respectively spliced with turbine blades 26 with the number of corresponding clamping grooves by taking the central axis of the corresponding machine body as an array line, and then the coincident line of the turbine blades is welded. The outer side of the pump wheel body 24 is provided with a pump wheel hub 19, the pump wheel body 24 is connected with the pump wheel inner ring 15 through pump wheel blades 25, the inner side of the pump wheel body 24 and the pump wheel inner ring 15 are respectively spliced with the pump wheel blades 25 with the number corresponding to the number of the clamping grooves by taking the central axis of the corresponding machine body as an array line, and then a coincident line of the pump wheel blades is welded.

A second needle bearing 18 is mounted on one side of the guide wheel body 16 and on the inner side of the pump hub 19, a retainer 23 is further provided in a circumferential cutout of the guide wheel body 16, the retainer 23 is positioned between the lockup clutch 21 and the turbine hub 6, and a first needle bearing 17 is provided between the retainer 23 and the inner side of the turbine hub 6. The inside of the drive plate 10 is fixedly connected to the turbine body 9 and the turbine hub 6 by the second rivet 5, and the driven plate 8 is fixedly connected to the holder 2 by the first rivet 11.

The input shaft 27 of the present invention is a stepped shaft, including a large end and a small end; an opening sleeve 29 is fixedly arranged in the middle of the driven disc 8, the opening sleeve 29 can be integrally arranged with the driven disc 8 or can be separately arranged, and the opening sleeve 29 can be connected in a flange or welding mode when being separately arranged. The split sleeve 29 is sleeved on the small end of the input shaft 27, a sealing ring 28 is arranged between the input shaft 27 and the split sleeve 29, the sealing ring 28 is arranged in a sealing groove of the input shaft 27, and the split sleeve 29 does not rotate along with the input shaft 271 and only plays a role in positioning.

The cross section of the turbine hub 6 is of an L-shaped structure and comprises a transverse sleeve 30 and a vertical annular plate 31 which are fixedly connected, the transverse sleeve 30 is sleeved on the large end of an input shaft 27 and rotates with the input shaft 27 simultaneously, the vertical annular plate 31 and a drive plate 10 are fixedly connected through a first rivet 11, the turbine hub 6 and the input shaft 27 can be connected through splines or interference fit, and the vertical annular plate 31 and a driven plate 8 are arranged in a contact mode on the radial surface of the vertical annular plate 31 and the driven plate 8.

The fluid torque conversion device can realize sealing only by arranging the sealing rings 28 on the driven disc 8 and the input shaft 27, and ensures that the middle position of the torque converter is oil-tight, compared with the sealing mode of the turbine hub 6 and the driven disc 8 of the traditional hydraulic torque converter, the fluid torque conversion device can effectively simplify the processing technology of the turbine hub 6, and reduce the manufacturing cost of products on the basis of meeting the sealing requirement.

In the sealing device of the turbine hub 6 and the driven disc 8 of the torque converter, an opening extending shaft barrel (an opening sleeve 29) is arranged in the middle of the driven disc 8, and the driven disc 8 is sealed by matching with a sealing ring 28 at the step section of an input shaft 27. The driven disk 8 presents a layout of hollow sleeves in the middle, with the aim of positioning the input shaft 27 of the turbine 9; through the arrangement of the through hole sleeve-shaped layout in the driven plate 8 and the combination of the arrangement that the middles of the turbine hub 6 and the inner race 20 are all through hole splines, compared with the arrangement of the local through hole splines of the traditional turbine hub 6, the processing technology of the turbine hub 6 can be simplified, the manufacturing cost of products is reduced, and meanwhile, the economic benefit is improved.

The opening of the turbine circumference of the torsion moment conversion device is provided with a locking clutch 21 (one-way clutch) which is positioned between the cover wheel and the turbine to prevent the transmission efficiency of the engine from being reduced under the condition of larger load. The lockup clutch 21 is mounted so that the rotational power from the engine can be directly transmitted to the transmission via the turbine. The lockup clutch 21 contains a torsional vibration damper that can absorb energy in the rotating condition of the friction plates and the cover wheel by a plurality of springs 13 arranged along the circumference.

The working process of the fluid type torque conversion device provided by the invention is as follows:

the utility model discloses a connecting block 1 all adopts the perpendicular welded mode of axial to install in the 4 outsides of cover wheel casing with cover wheel hub 7, the output of engine is connected in cover wheel hub 7 department, the cover wheel casing 4 inboard periphery is sealed through welded connection with the outside periphery of the pump impeller body 24, make whole fluid transmission device can realize the input of power, can realize giving pump impeller body 24 through the transmission of cover wheel casing 4 with the rotation of engine, back pump impeller body 24 is for turbine blade 26 through the transmission of pump impeller blade 25 with torsional force, when turbine blade 26 can drive turbine body 9 pivoted, liquid also can flow back to pump impeller body 24 through guide wheel body 16 and form the circulation. The vibration of the pump wheel body 24, the turbine wheel body 9 and the guide wheel body 16 in the circular transmission can be effectively absorbed through the transmission of the spring 13.

Claims

1. A fluid type torque conversion device comprises a shroud wheel shell (4), a pump wheel body (24), an input shaft (27), a driven plate (8), a retainer (2), a spring (13), a drive plate (10), a turbine body (9), a turbine hub (6), an inner race (20), a guide wheel body (16), an outer race (22), a lockup clutch (21), a pump wheel and a turbine;

the inner periphery of the cover wheel shell (4) and the outer periphery of the pump wheel body (24) are connected in a sealing mode to form a mounting cavity, the input shaft (27) is arranged in the mounting cavity, the driven disc (8) and the turbine hub (6) are sequentially sleeved on the input shaft (27), the driven disc (8) is fixedly connected with the retainer (2), a plurality of groups of springs (13) are arranged on the inner ring of a groove in the periphery of the retainer (2), the outer side of the driving disc (10) is in contact with two ends of each spring (13), the protruding part of the outer side is inserted into the concave part of the retainer (2), and the inner side of the driving disc (10) is fixedly connected with the turbine body (9) and the turbine hub (6) at the same time;

the inner race (20) and the guide wheel body (16) are sequentially sleeved on the input shaft (27), the inner race (20) is positioned on one side of the turbine wheel hub (6), the lockup clutch (21) is sleeved on the inner race (20), the outer race (22) is sleeved on the lockup clutch (21) and positioned in a circumferential notch of the guide wheel body (16), the right side of the guide wheel body (16) is provided with a pump wheel, and the left side of the guide wheel body is provided with a turbine wheel;

the method is characterized in that:

the input shaft (27) is a step shaft and comprises a large end and a small end; an opening sleeve (29) is fixedly arranged in the middle of the driven disc (8), the opening sleeve (29) is sleeved on the small end of the input shaft (27), a sealing ring (28) is arranged between the small end of the input shaft (27) and the opening sleeve (29), and the sealing ring (28) is arranged in a sealing groove of the input shaft (27);

the cross section of the turbine hub (6) is of an L-shaped structure and comprises a transverse sleeve (30) and a vertical annular plate (31) which are fixedly connected, the transverse sleeve (30) is sleeved on the large end of the input shaft (27) and rotates with the input shaft (27) simultaneously, and the vertical annular plate (31) is fixedly connected with a dial (10) of the torque converter.

2. The fluidic torque conversion device of claim 1, wherein: the paper-based friction plate (12) is arranged on the outer side of the driven plate (8), and the cover wheel shell (4) is in friction contact with the driven plate (8) through the paper-based friction plate (12).

3. The fluid torque conversion device according to claim 2, wherein: still include connecting block (1) and cover wheel hub (7), connecting block (1) axial vertical sets up at cover wheel shell (4) outside edge, cover wheel hub (7) axial vertical sets up at cover wheel shell (4) outside center.

4. A fluid torque conversion device according to claim 1, 2 or 3, wherein: the turbine hub (6) is connected with the input shaft (27) through a spline.

5. The fluid torque conversion device according to claim 4, wherein: the turbine hub (6) is a component realized by a stamping process.

6. The fluid torque conversion device according to claim 5, wherein: the outer edge of the pump wheel body (24) is provided with a balance block (14) for realizing the dynamic balance of the device in the operation process.

7. The fluid torque conversion device according to claim 6, wherein: and a pump hub (19) is arranged on the outer side of the pump wheel body (24), and a second needle bearing (18) is arranged on one side of the guide wheel body (16) and the inner side of the pump hub (19).

8. The fluid torque conversion device according to claim 7, wherein: and a retainer (23) is further arranged in the circumferential notch of the guide wheel body (16), and the retainer (23) is positioned between the locking clutch (21) and the turbine hub (6).

9. The fluid torque conversion device according to claim 8, wherein: a first needle bearing (17) is arranged between the retainer (23) and the turbine hub (6).

10. The fluid torque conversion device according to claim 9, wherein: the inner side of the driving plate (10) is fixedly connected with the turbine body (9) and the turbine hub (6) through a second rivet (5), and the driven plate (8) is fixedly connected with the retainer (2) through a first rivet (11).