CN216045116U

CN216045116U - Assembly mechanism for torque increase of hydraulic retarder

Info

Publication number: CN216045116U
Application number: CN202122670015.7U
Authority: CN
Inventors: 传海军; 王键; 谭广宇
Original assignee: Jilin Zhongyu Xinde Technology Co ltd
Current assignee: Jilin Zhongyu Xinde Technology Co ltd
Priority date: 2021-11-03
Filing date: 2021-11-03
Publication date: 2022-03-15
Anticipated expiration: 2031-11-03

Abstract

The utility model discloses a component mechanism for torque increase of a hydraulic retarder, which comprises a retarder outer shell, wherein a fixed wheel is rotatably arranged in the retarder outer shell, a driving wheel is arranged at the center position in the retarder outer shell, fixed wheel blades are uniformly distributed and fixedly arranged at the position, adjacent to the driving wheel, of the fixed wheel, a retarder output shaft is inserted in the driving wheel, a mounting bolt is arranged between the retarder output shaft and the retarder outer shell, a shaft diameter ring is arranged between the mounting bolt and the retarder output shaft, a bearing race is arranged between the driving wheel and the fixed wheel, and a roller bearing is arranged between the bearing race and the shaft diameter ring. In the use process, the utility model increases the L value of the fixed wheel blade, improves the braking torque of the retarder, ensures the mechanical property of the output shaft, meets the requirements of a rolling bearing structure with high load and high rotating speed, meets the braking effects of the existing large-tonnage vehicle, high-speed running and long steep slope, and protects the life and property safety of people.

Description

Assembly mechanism for torque increase of hydraulic retarder

Technical Field

The utility model relates to the technical field of automobile auxiliary parts, in particular to an assembly mechanism for increasing torque of a hydraulic retarder.

Background

The stator of the hydraulic retarder is also a retarder shell and is connected with the rear end of the speed changer or the frame, the rotor is connected with the transmission shaft through the hollow shaft, the rotor and the stator are both cast with blades, when in work, the working fluid is filled in the working cavity between the rotor and the stator by applying pressure to the oil pool through the operation of the control valve, when the rotor rotates, a torque is acted on the stator through the working fluid, and the counter torque of the stator is the braking torque of the rotor, the value depends on the liquid amount and pressure in the working chamber (depending on the braking intensity gear set by the control valve) and the rotation speed of the rotor, the kinetic energy of the vehicle is consumed by the friction of the working fluid and the impact on the stator to be converted into heat energy, so that the temperature of the working fluid is increased, the working fluid is led into the heat exchanger to flow circularly, the heat is transferred to cooling water, and then the cooling water is dissipated through the engine cooling system, so that the hydraulic retarder is mostly used in hydraulic transmission vehicles.

The best position for installing the hydraulic retarder on the market at present is in the right side area of an automobile transmission auxiliary box, the area is limited by a transmission auxiliary box structure and a whole automobile crossbeam, and the diameter D value of the excircle of a driving wheel and a fixed wheel of key parts for generating braking torque by the retarder cannot be increased, so that the braking torque effect cannot be improved, and the braking requirements of the existing large-tonnage vehicles and large-gradient road sections cannot be met.

In order to improve bigger speed reduction effect and braking torque, the length L value of blades on a driving wheel and a fixed wheel is increased to be the best effective method, however, the L value is increased, the area B of the driving wheel and the fixed wheel is reduced, the effective diameter of an output shaft of the retarder is reduced, the performance of the output shaft is insufficient, and meanwhile, a tapered roller bearing cannot be directly installed on the output shaft.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art and provides a component mechanism for torque increase of a hydrodynamic retarder.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a component mechanism for torque increase of a hydrodynamic retarder comprises a retarder outer shell, wherein a fixed wheel is rotatably arranged in the retarder outer shell, a driving wheel is arranged at the center position in the retarder outer shell, fixed wheel blades are uniformly distributed and fixedly arranged at the position, adjacent to the driving wheel, of the fixed wheel, a retarder output shaft is inserted into the driving wheel, a mounting bolt is arranged between the retarder output shaft and the retarder outer shell, and a shaft diameter ring is arranged between the mounting bolt and the retarder output shaft;

and a bearing race is arranged between the driving wheel and the fixed wheel, a roller bearing is arranged between the bearing race and the shaft diameter ring, and a free gap adjusting block is arranged between the shaft diameter ring and the output shaft of the retarder.

Preferably, the roller bearing and the free gap adjusting block are both conical.

Preferably, an internal spline sleeve is arranged at the intersection of the driving wheel and the output shaft of the retarder.

Preferably, the length of the fixed wheel blade is L value, the outer diameter of the fixed wheel is D value, the inner part of the driving wheel is B area, and the size of the braking torque of the hydraulic retarder is in direct proportion to the L value of the fixed wheel blade or the D value of the outer diameter of the fixed wheel.

Preferably, the size of the B area is in inverse proportion to the L value of the fixed wheel blade.

Preferably, the outer contour edge of the bearing race is connected with the inner contour edge of the fixed wheel, and oil inlet holes are uniformly distributed in the middle position of the bearing race.

The utility model provides an assembly mechanism for torque increase of a hydrodynamic retarder, which has the beneficial effects that:

in the whole mechanism, the increase of the L value size of the fixed wheel and the moving wheel is ensured through structures such as a shaft diameter ring and the like, the braking torque is effectively improved, and meanwhile, the problems that the bearing mounting surface of the output shaft of the retarder is reduced and the selected high-rotating-speed high-load tapered roller bearing cannot be mounted and connected due to the reduction of the B value space of the moving wheel and the fixed wheel are ensured;

during assembly, the sizes of two matching surfaces of the shaft diameter ring supporting structure and the output shaft of the retarder are measured according to the automatic measuring device, and the specification and the model of the free gap adjusting device are automatically selected according to the sizes, so that the mounting is convenient, the later disassembly and maintenance are convenient, the maintenance is facilitated, and the assembly efficiency is improved;

through the mechanism assembly, the L value of the blade is increased, the braking torque of the retarder is improved, the mechanical property of an output shaft is ensured, a rolling bearing structure with high load and high rotating speed is met, the braking effects of the existing large-tonnage vehicle, high-speed running and long steep slope are met, and the life and property safety of people is protected.

Drawings

FIG. 1 is a schematic structural diagram of a component mechanism for torque multiplication of a hydrodynamic retarder according to the present invention;

fig. 2 is a front view of a component mechanism for torque multiplication of a hydrodynamic retarder according to the present invention.

In the figure: 1. a shaft diameter ring; 2. a bearing race; 3. a roller bearing; 4. a free gap adjusting block; 5. a retarder output shaft; 6. a driving wheel; 7. fixing the wheel; 8. fixed wheel blades; 9. installing a bolt; 10. a retarder outer housing; 11. an inner spline housing; 12. an oil inlet hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Referring to fig. 1-2, an assembly mechanism for torque increase of a hydrodynamic retarder comprises a retarder outer shell 10, wherein a fixed wheel 7 is rotatably mounted inside the retarder outer shell 10, a driving wheel 6 is arranged at the center position inside the retarder outer shell 10, fixed wheel blades 8 are uniformly distributed and fixedly mounted at the positions, adjacent to the driving wheel 6, of the fixed wheel 7, a retarder output shaft 5 is inserted into the driving wheel 6, a mounting bolt 9 is arranged between the retarder output shaft 5 and the retarder outer shell 10, and a shaft diameter ring 1 is arranged between the mounting bolt 9 and the retarder output shaft 5;

a bearing race 2 is arranged between a moving wheel 6 and a fixed wheel 7, a roller bearing 3 is arranged between the bearing race 2 and a shaft diameter ring 1, a free gap adjusting block 4 is arranged between the shaft diameter ring 1 and a retarder output shaft 5, the roller bearing 3 and the free gap adjusting block 4 are both conical, an internal spline sleeve 11 is arranged at the position of the intersection of the moving wheel 6 and the retarder output shaft 5, the set length of a fixed wheel blade 8 is L value, the outer diameter of the fixed wheel 7 is D value, a B area is arranged inside the moving wheel 6, the magnitude of the braking torque of the hydraulic retarder is in direct proportion to the L value of the fixed wheel blade 8 or the outer diameter D value of the fixed wheel 7, the magnitude of the B area is in inverse proportion to the L value of the fixed wheel blade 8, the outer contour edge of the bearing race 2 is connected with the inner contour edge of the fixed wheel 7, and oil inlet holes 12 are uniformly distributed in the middle position on the bearing race 2.

In the using process of the utility model, in order to improve larger deceleration effect and braking torque, the length L value of the movable wheel 6 and the fixed wheel blade 8 is increased to be the best effective method, the L value is increased, the B area between the movable wheel 6 and the fixed wheel 7 is reduced, thereby the effective diameter of the retarder output shaft 5 is reduced, the performance of the retarder output shaft 5 is insufficient, meanwhile, the roller bearing 3 can not be directly arranged on the retarder output shaft 5, if the small roller bearing 3 is selected, the requirement of high load and large braking torque can not be met, simultaneously, the adjustment of the free gap of the bearing is not facilitated, the batch production and the assembly are not facilitated, therefore, in the assembling process, the sizes of two matching surfaces of the shaft diameter ring 1 and the retarder output shaft 5 are measured according to an automatic measuring device, the specification type of the free gap adjusting block 4 is automatically selected according to the sizes, so as to facilitate the whole assembling process, the free gap adjusting block 4 is arranged on the installation surfaces of the output shaft 5 and the diameter ring 1 of the retarder, and is quickly installed and disassembled on the diameter ring 1 and the roller bearing 3, so that the maintenance is facilitated, and the assembly efficiency is improved;

the retarder output shaft 5 is connected with an automobile transmission shaft, the driving wheel 6 is connected through an internal spline sleeve 11 on the retarder output shaft 5, and the fixed wheel 7 is connected and fixed with an automobile transmission through a retarder outer shell 10;

when the automobile needs to be decelerated, oil is filled between the movable wheel 6 and the fixed wheel 7, the movable wheel 6 drives the oil to impact the fixed wheel 7, and the fixed wheel 7 recoils to prevent the movable wheel 6 from rotating, so that the automobile is decelerated.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. The assembly mechanism for torque increase of the hydrodynamic retarder comprises a retarder outer shell (10) and is characterized in that a fixed wheel (7) is rotatably mounted inside the retarder outer shell (10), a driving wheel (6) is arranged at the center inside the retarder outer shell (10), fixed wheel blades (8) are uniformly and fixedly mounted at the position, adjacent to the driving wheel (6), of the fixed wheel (7), a retarder output shaft (5) is inserted inside the driving wheel (6), a mounting bolt (9) is arranged between the retarder output shaft (5) and the retarder outer shell (10), and a shaft diameter ring (1) is arranged between the mounting bolt (9) and the retarder output shaft (5);

be provided with bearing race (2) between driving wheel (6) and fixed wheel (7), be provided with roller bearing (3) between bearing race (2) and footpath ring (1), be provided with free clearance regulating block (4) between footpath ring (1) and retarber output shaft (5).

2. An assembly arrangement for torque multiplication of a hydrodynamic retarder according to claim 1, characterized in that the roller bearing (3) and the free gap adjusting block (4) are conical.

3. An assembly mechanism for torque multiplication of a hydrodynamic retarder according to claim 1, characterized in that an internally splined hub (11) is arranged at the location where the traction wheel (6) meets the retarder output shaft (5).

4. An assembly mechanism for torque increase of a hydrodynamic retarder according to claim 1, characterized in that the fixed wheel blade (8) is set to have a length of L, the outer diameter of the fixed wheel (7) is D, the inner part of the moving wheel (6) is a region B, and the magnitude of the braking torque of the hydrodynamic retarder is directly proportional to the L value of the fixed wheel blade (8) or the D value of the outer diameter of the fixed wheel (7).

5. A component mechanism for torque multiplication of a hydrodynamic retarder according to claim 4, characterized in that the size of the B area is inversely related to the L value of the stator vanes (8).

6. An assembly mechanism for torque multiplication of a hydrodynamic retarder according to claim 1, characterized in that the outer contour of the bearing race (2) is connected to the inner contour of the fixed wheel (7), and oil inlets (12) are evenly distributed on the bearing race (2) at the middle position.