CN211423210U

CN211423210U - High-efficiency gear clutch control structure capable of running smoothly

Info

Publication number: CN211423210U
Application number: CN201922372994.0U
Authority: CN
Inventors: 赵青; 李宣秋; 雷福斗; 李军; 梁建冬; 李若国; 杨建科; 王志丹; 康玉宾
Original assignee: Shantui Chutian Construction Machinery Co Ltd
Current assignee: Shantui Chutian Construction Machinery Co Ltd
Priority date: 2019-12-24
Filing date: 2019-12-24
Publication date: 2020-09-04
Anticipated expiration: 2029-12-24

Abstract

The utility model discloses a high-efficient fender position clutch control structure that moves smoothly, including the clutch shaft with set up in the epaxial casing of clutch, the epaxial output gear relative with the casing of installing through the spline of clutch of casing one side, the epaxial rotation of clutch between output gear and the casing is connected with clutch shell gear, be equipped with interval placement's friction disc and steel sheet in the clutch shell gear, interval placement's friction disc and steel sheet both ends are equipped with compression fittings, compression fittings leans on the epaxial piston that is equipped with of clutch of outer one side, the piston outside is equipped with the step, be equipped with the retaining ring on the piston in the step outside, be equipped with first group belleville spring between step and the retaining ring, the piston inboard is equipped with the shutoff apron, be equipped with the oil pocket between shutoff apron and the piston. The clutch pack and the piston are of a split structure, the piston is not driven to rotate by the rotation of the gear of the clutch shell, the rotational inertia of the clutch pack is small, and the loss of mechanical efficiency is small.

Description

High-efficiency gear clutch control structure capable of running smoothly

Technical Field

The utility model belongs to the clutch field, specifically speaking are smooth-going high-efficient fender position clutch control structure.

Background

At present, most of clutches adopted in the existing domestic gearboxes are of multi-plate friction plates, spring pressing, normally open type and wet type friction structures. The prior art background will be described with reference to the 3 ton loader transmission clutch configuration of FIG. 1.

In a natural state, friction plates 5 (number 6) and steel plates 6 (number 5) in the clutch are in a separated state, a first gear 18 and a clutch shell 3 are connected into a whole through bolts, the first gear 18 and a clutch shaft 1 are connected into a whole through splines, when power is transmitted to the first gear 18, the first gear 18 drives the clutch shell 3 and the clutch shaft 1 to rotate together, a third gear 21 is connected with the clutch shaft 1 through the splines, the clutch shaft 1 rotates to drive the third gear 21 to rotate, and the power can be transmitted through the third gear 21.

The friction plate 5 is provided with internal teeth which are meshed with external teeth of a spline of the second gear 20, and the two gears run synchronously; the steel sheet 6 is provided with external teeth which are meshed with the internal teeth of the spline of the clutch housing 3, and the two run synchronously; when pressure oil is transmitted to the piston cavity 23 through the oil passage 22, the pressure of the piston cavity 23 is increased, the pressure pushes the piston 12 to move rightwards, the piston 12 moves rightwards to compress the spring 19, the piston 12 presses the friction plates 5, the friction plates 5 (the number 6) and the steel sheets 6 (the number 5) are tightly integrated, at the moment, the friction plates 5 and the steel sheets 6 rotate synchronously to drive the second gear 20 to rotate, power is transmitted through the second gear 20, and the transmission route of the power is changed.

When the pressure oil in the oil passage 22 is cut off, the oil in the piston cavity 23 has no pressure, the compressed spring 19 expands at the moment, the piston 12 moves leftwards against the piston, the piston 12 moves leftwards, the pressure on the friction plate 5 disappears, the friction plate 5 and the steel sheet 6 are changed from a tight combination state to a separation state, the two do not synchronously rotate any more, the gear two 20 does not rotate any more, the power passing through the gear two 20 is cut off, and the power is only transmitted through the gear three 21. Power is transmitted through different gears, and the change of different gears can be realized.

In the prior art, a piston is arranged in a clutch housing, the piston directly contacts a friction plate and a steel sheet under the action of oil pressure, and the piston is pushed to reset under the action of a spring after the oil is decompressed. The piston 12, the first gear 18 and the clutch housing 3 always rotate simultaneously, the rotational inertia is large, and the loss of mechanical efficiency is relatively large. The lubricating oil circuit of the clutch in the prior art is mostly the outside single lubricating oil of the gearbox, so that the overall structure of the gearbox is complex and the operation is complex.

SUMMERY OF THE UTILITY MODEL

For the inertia that reduces the clutch assembly, reduce the mechanical efficiency loss, optimize lubricating structure simultaneously, the utility model provides a high-efficient fender position clutch control structure who moves smoothly.

The utility model discloses a realize through following technical scheme.

The utility model provides a high-efficient fender position clutch control structure that moves smoothly, includes the clutch shaft with set up in the epaxial casing of clutch, the epaxial output gear relative with the casing of installing through the spline of clutch of casing one side, the epaxial clutch between output gear and the casing rotates and is connected with clutch shell gear, be equipped with interval arrangement's friction disc and steel sheet in the clutch shell gear, interval arrangement's friction disc and steel sheet both ends are equipped with compression fittings, compression fittings leans on the epaxial piston that is equipped with of clutch of outer one side, the piston outside is equipped with the step, be equipped with the retaining ring on the piston in the step outside, be equipped with a set of belleville spring between step and the retaining ring, the piston inboard is equipped with the shutoff apron, be equipped with the oil pocket between shutoff. The piston is provided with pressing force through the first group of disc springs, so that the piston moves smoothly on the clutch shaft.

The utility model discloses a further improvement still, above-mentioned piston inboard through first tapered roller bearing with compression fittings connects. And the stress balance between the piston and the pressing device is realized through the first tapered roller bearing.

The utility model discloses a further improvement still, above-mentioned piston inboard through second tapered roller bearing with clutch shaft connects. The support of the clutch shaft is achieved by means of a second tapered roller bearing.

The utility model discloses a further improvement still, above-mentioned clutch shaft with be equipped with the second group belleville spring between the casing. And the axial clearance between the second conical roller bearing and the shell is adjusted through a second group of disc springs.

The utility model discloses a further improvement still, above-mentioned compression fittings including relative set up in epaxial bearing plate of clutch and pressure disk. The pressure plate and the bearing plate are matched to extrude the friction plate and the steel sheet.

The utility model discloses a further improvement still, above-mentioned bearing plate with epaxial spline housing that is equipped with of clutch between the pressure disk, all be equipped with separation spring between spline housing and the bearing plate and between spline housing and the pressure disk. The bearing plate and the pressure plate realize a separation gap with the spline housing in a natural state through a separation spring.

The utility model discloses a further improvement still, above-mentioned clutch shaft inside is equipped with the cavity, the epaxial round hole with the cavity intercommunication of different diameters of seting up of clutch. The oil is thrown out of the inner cavity to parts such as a bearing, a friction plate, a separation spring and the like through the rotating centrifugal force, and the parts are lubricated.

The utility model has the advantages that: the piston extrudes the pressing device on the inner side, the friction plate and the steel sheet are tightly attached, the step structure on the outer side of the piston is provided with a plurality of layers of springs to provide pressing force, and each part is filled and discharged through oil in the oil cavity to lubricate each part, so that the smooth degree of the whole structure combination of the clutch is improved. The clutch pack and the piston are of a split structure, the piston is not driven to rotate by the rotation of the gear of the clutch shell, the rotational inertia of the clutch pack is small, and the loss of mechanical efficiency is small.

Drawings

Fig. 1 is a schematic structural diagram of the prior art.

Fig. 2 is a schematic structural diagram of an embodiment of the present invention.

In the drawings: 1. the clutch comprises a clutch shaft, 2, an output gear, 3, a clutch shell gear, 4, a pressure bearing disc, 5, friction plates, 6, steel sheets, 7, a spline sleeve, 8, a pressure plate, 9, a first conical roller bearing, 10, a first group of disc springs, 11, a second conical roller bearing, 12, a piston, 13, a separation spring, 14, a sealing cover plate, 15, a shell, 16, a retainer ring, 17, a second group of disc springs, 18, a first gear, 19, a spring, 20, a second gear, 21, a third gear, 22, an oil passage, 23 and a piston cavity.

Detailed Description

The following describes the embodiments of the present invention with reference to fig. 2.

As shown in the attached drawings, the high-efficiency gear clutch control structure with smooth running comprises a clutch shaft 1 and a shell 15 arranged on the clutch shaft 1, an output gear 2 facing the housing 15 is spline-mounted on the clutch shaft 1 on the housing 15 side, a clutch shell gear 3 is rotatably connected on the clutch shaft 1 between the output gear 2 and the shell 15, friction plates 5 and steel sheets 6 which are arranged at intervals are arranged in the clutch shell gear 3, spline sleeves 7 are arranged on the inner rings of the friction plates 5 and the steel sheets 6 which are arranged at intervals, the spline sleeves 7 are arranged on the clutch shaft 1, the steel sheets 6 are provided with outer teeth, through the external tooth with clutch housing gear 3 meshes, friction disc 5 has the internal tooth, through the internal tooth with spline housing 7 meshes mutually, spline housing 7 meshes mutually through inboard spline and clutch shaft 1. And pressing devices are arranged at two ends of the friction plates 5 and the steel sheets 6 which are arranged at intervals, and a piston 12 is arranged on the clutch shaft 1 at the outer side of each pressing device. The activation of the stitching device is effected by the piston 12.

The pressing device comprises a bearing plate 4 and a pressure plate 8 which are oppositely arranged on two sides of the spline housing 7. The pressure bearing plate 4 and the pressure plate 8 are in contact with the spline housing 7 through a separation spring 13. The pressure plate 8 presses the separation spring 13 to make the friction plate 5 and the steel sheet 6 attached. When the oil cavity is decompressed, under the action of the separation spring 13, the pressure bearing disk 4 and the pressure plate 8 keep a gap with the spline housing 7.

The outer side of the piston 12 is provided with a step, the piston 12 on the outer side of the step is provided with a retainer ring 16, and a first group of disc springs 10 are arranged between the step and the retainer ring 16. The piston 12 is provided with a pressing force by the first set of belleville springs 10. The inner side of the piston 12 is connected with the pressure plate 8 through a first tapered roller bearing 9, and the inner side of the piston 12 is arranged on the clutch shaft 1 through a second tapered roller bearing 11. The first tapered roller bearing 9 realizes the stress balance between the piston 12 and the pressing device. A second set of belleville springs 17 is provided between the clutch shaft 1 and the housing 15. The axial clearance between the second conical roller bearing 11 and the housing 15 is adjusted by the second set of disc springs 17.

An oil cavity is arranged between the inner side of the piston 12 and the blocking cover plate 14, and oil enters and exits the oil cavity, so that the pressure plate 8 is contacted and separated under the action of the first group of disc springs 10.

A cavity is formed in the clutch shaft 1, and round holes which are different in diameter and communicated with the cavity are formed in the clutch shaft 1. The oil is thrown out of the inner cavity to parts such as a bearing, a friction plate, a separation spring and the like through the rotating centrifugal force, and the parts are lubricated.

The clutch pack is composed of a clutch shell gear 3, a friction plate 5, a steel sheet 6, a spline sleeve 7, a pressure plate 8 and a pressure bearing plate 4, and the clutch pack and a piston are of a split structure on a clutch shaft 1.

The output gear 2 is meshed with the clutch shaft 1 through an internal spline, and the output gear and the clutch shaft rotate synchronously; the steel sheet 6 is provided with external teeth and is meshed with the gear 3 of the clutch shell, and the two keep synchronous rotation; the friction plate 5 is provided with internal teeth and is meshed with the spline housing 7, the spline housing 7 is meshed with the clutch shaft 1 through an internal spline, and the three parts can synchronously rotate.

In a natural state, the elastic force of the first group of disc springs 10 presses the piston 12, so that the piston 12 moves leftwards, the pressure presses the pressure plate 8 through the first tapered roller bearing 9, the pressure plate 8 moves leftwards, so that the separation spring 13 is compressed, the pressure plate 8 presses the friction plate 5 and the steel sheet 6, and the friction plate 5 and the steel sheet 6 are tightly attached together. The clutch shell gear 3 is a power source gear and is meshed with the outer teeth of the steel sheet 6, the steel sheet 6 is tightly attached to the friction sheet 5 under the action of pressure, the friction sheet 5 is provided with inner teeth and is meshed with the spline sleeve 7, the spline sleeve 7 is meshed with the clutch shaft 1 through an inner spline, the friction sheet 5, the spline sleeve 7 and the clutch shaft 1 are synchronously rotated, so that power is transmitted to the clutch shaft 1 through the steel sheet 6 of the friction sheet 5, the clutch shaft 1 rotates to drive the output gear 2 to rotate, the output gear 2 is meshed with a gear which transmits power outwards, and the power is transmitted accordingly.

When the oil chamber is filled with pressure oil, the pressure of the pressure oil pushes the piston 12 to the right, and the piston 12 moves to the right so that the first group of disc springs 10 are compressed. The first group of disc springs 10 are compressed, the space in the oil cavity is increased, more pressure oil is filled, the piston 12 is continuously pushed to move rightwards, the outer ring of the first tapered roller bearing 9 is driven to move rightwards, the pressure of the outer ring of the first tapered roller bearing 9 moving rightwards on the pressure plate 8 disappears, so that the separation spring 13 relaxes, the separation spring 13 relaxes to push the pressure plate 8 to move rightwards, the pressure plate 8 moves rightwards, the pressing force between the steel sheet 6 and the friction plate 5 disappears, the steel sheet 6 and the friction plate 5 separate, the steel sheet 6 and the friction plate 5 rotate asynchronously, and power is cut off or power is transmitted through.

A high-efficient fender position clutch control structure that moves smoothly, extrude inboard compression fittings through the piston, friction disc and steel sheet are closely laminated, the stair structure in the piston outside is equipped with the multilayer spring and provides the pressfitting power, fill through fluid in the oil pocket and fill the smooth-going degree that improves clutch overall structure and combine. The clutch pack and the piston are of a split structure, the piston is not driven to rotate by the rotation of the gear of the clutch shell, the rotational inertia of the clutch pack is small, and the loss of mechanical efficiency is small.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The terms "upper", "lower", "outside", "inside" and the like in the description and claims of the present invention and the above drawings are used for distinguishing relative positions if any, and are not necessarily given qualitatively. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A high-efficiency gear clutch control structure running smoothly is characterized by comprising a clutch shaft (1) and a shell (15) arranged on the clutch shaft (1), wherein an output gear (2) opposite to the shell (15) is arranged on the clutch shaft (1) on one side of the shell (15) through a spline, a clutch shell gear (3) is rotatably connected on the clutch shaft (1) between the output gear (2) and the shell (15), friction plates (5) and steel sheets (6) which are arranged at intervals are arranged in the clutch shell gear (3), pressing devices are arranged at two ends of the friction plates (5) and the steel sheets (6) which are arranged at intervals, a piston (12) is arranged on the clutch shaft (1) on one side close to the outer side of the pressing devices, a step is arranged on the outer side of the piston (12), and a retainer ring (16) is arranged on the piston (12) on the outer side of the step, a first group of disc springs (10) are arranged between the steps and the retainer ring (16), a blocking cover plate (14) is arranged on the inner side of the piston (12), and an oil cavity is arranged between the blocking cover plate (14) and the piston (12).

2. A smoothly running high-efficiency gear clutch control structure according to claim 1, characterized in that the inside of the piston (12) is connected with the pressing device through a first tapered roller bearing (9).

3. A smoothly running high-efficiency gear clutch control structure according to claim 1, characterized in that the inside of the piston (12) is connected with the clutch shaft (1) through a second tapered roller bearing (11).

4. A smoothly running high-efficiency gear clutch control structure according to claim 1, characterized in that a second set of disc springs (17) is arranged between the clutch shaft (1) and the housing (15).

5. A smoothly running high-efficiency gear clutch control structure according to claim 1, characterized in that the pressing device comprises a pressure bearing plate (4) and a pressure plate (8) which are oppositely arranged on the clutch shaft (1).

6. The high-efficiency gear clutch control structure running smoothly according to claim 5, characterized in that a spline housing (7) is arranged on the clutch shaft (1) between the pressure bearing disk (4) and the pressure plate (8), and release springs (13) are arranged between the spline housing (7) and the pressure bearing disk (4) and between the spline housing (7) and the pressure plate (8).

7. The smoothly-running high-efficiency gear clutch control structure is characterized in that a cavity is formed inside the clutch shaft (1), and round holes which are different in diameter and communicated with the cavity are formed in the clutch shaft (1).