CN210397486U

CN210397486U - Novel double-plate clutch assembly for tractor

Info

Publication number: CN210397486U
Application number: CN201921412157.XU
Authority: CN
Inventors: 王鹏阳
Original assignee: Shandong Nongfu Transmission Technology Co Ltd
Current assignee: Shandong Nongfu Transmission Technology Co Ltd
Priority date: 2019-08-28
Filing date: 2019-08-28
Publication date: 2020-04-24
Anticipated expiration: 2029-08-28

Abstract

The utility model provides a tractor is with novel double-disc clutch assembly, including the shell body, install floating pressing plate, the parallel arrangement that can axial displacement on the shell body at least two sets of friction disc in the shell body and be located the double-acting clamp plate between two sets of adjacent friction discs, be equipped with compression spring between floating pressing plate and the shell body, compression spring normality makes closely laminating between two sets of friction discs and the double-acting clamp plate, utilizes frictional force transmission power. This clutch is applied to high-power tractor, under the condition that does not increase clutch friction plate size, utilizes two sets of parallel arrangement's friction disc to realize power transmission, in order to prevent rocking of two effect clamp plates in the clearance when frictional force separates, sets up reset spring in two effect clamp plates both sides, has guaranteed to break away from rapidly between two effect clamp plates and the friction disc, utilizes reset spring to realize the autosegregation of clutch, simple structure, convenient to use.

Description

Novel double-plate clutch assembly for tractor

Technical Field

The utility model relates to a mechanical transmission technical field especially relates to a clutch equipment, specifically indicates a novel biplate clutch assembly for tractor.

Background

As is known, the clutch is located in a flywheel housing between the engine and the transmission, and the clutch assembly is fixed to the rear plane of the flywheel by screws, and the output shaft of the clutch is the input shaft of the transmission. During the running of the automobile, the driver can press or release the clutch pedal according to the requirement, so that the engine and the gearbox are temporarily separated and gradually jointed, and the power input by the engine to the gearbox is cut off or transmitted.

Chinese patent discloses application number 201820883390.5, the name is a utility model patent of double-plate double-acting clutch for tractor, and the technical problem that this patent solved is: under the condition that the external diameter size of the clutch is not changed, a double-plate or multi-plate clutch driven disc assembly is configured, under the condition that the compression load is not changed or even reduced, larger torque can be transmitted, the operating force during separation is reduced, and the working reliability during extension of a horsepower section is met.

Chinese patent discloses application number 201820049630.1, the utility model discloses a double-plate double-acting clutch's for high-power tractor patent, the technical problem of solution is: the double-plate clutch has two friction plates working in parallel, and the driven plate is gradually compressed when the clutch is engaged, so that the starting is more stable.

The two technical schemes are basically consistent, and the clutch comprises a clutch cover, a main clutch working component, an auxiliary clutch working component and a disc spring arranged between the main clutch working component and the auxiliary clutch working component, wherein the clutch cover, the auxiliary clutch working component, the main clutch working component and the disc spring are coaxially arranged, and the auxiliary clutch working component comprises an auxiliary clutch pressure plate and an auxiliary clutch driven plate assembly arranged at the end part of the auxiliary clutch pressure plate; the main clutch working component comprises a main clutch pressure plate and two same main clutch driven plate assemblies arranged on one side of the main clutch pressure plate, a clutch middle pressure plate is arranged between the two main clutch driven plate assemblies, blind holes which are uniformly distributed are formed in the end face of the outer side of the clutch middle pressure plate, and compression separation springs are arranged in the blind holes; the disc spring is arranged between the auxiliary clutch pressure plate and the main clutch pressure plate and is positioned on a sharp corner of the end faces of the auxiliary clutch pressure plate and the main clutch pressure plate; the outer edges of the main clutch pressure plate, the auxiliary clutch pressure plate and the clutch intermediate pressure plate are all provided with evenly distributed convex blocks which are in sliding connection with axial guide grooves arranged on the clutch cover; a main clutch driving mechanism and an auxiliary clutch driving mechanism are mounted on the outer end surface of the clutch cover, the main clutch driving mechanism drives the main clutch working assembly to move along the axial direction of the clutch cover, and the auxiliary clutch driving mechanism drives the auxiliary clutch working assembly to move along the axial direction of the clutch cover. Separation principle of the clutch: the clutch separation of the technical proposal utilizes the effect of a clutch separation lever, the number of the auxiliary clutch driving mechanisms is three groups and is uniformly distributed around the center of the clutch shell, each group of the auxiliary clutch driving mechanisms comprises an auxiliary clutch separation lever hinged on a lug at the end part of the clutch shell, a second torsion spring which is arranged on a hinged point of the auxiliary clutch separation lever and applies elastic force to the auxiliary clutch separation lever, a connecting rod hinged with the auxiliary clutch separation lever and two second nuts arranged at the tail end of the connecting rod, the connecting rod penetrates through the clutch shell, the middle pressure plate of the main clutch and the auxiliary clutch pressure plate, the tail end of the connecting rod extends to the outer side position of the auxiliary clutch pressure plate and is positioned by two pairs of connecting rods of nuts, and a supporting compression spring is sleeved on the part of the connecting rod, which is positioned on the clutch shell and the middle pressure plate of the main clutch, two ends of the supporting compression spring are respectively contacted with the middle pressure plate of the main clutch and the clutch shell.

Carefully and seriously looking at the technical scheme, the technical scheme described in the technical characteristics is still the traditional transmission distance, and the technical scheme also utilizes two groups of clutches to respectively control the stop and the transmission of the power transmission of the gearbox of the tractor and the rear output shaft at the tail part of the tractor, and generally arranges two groups of clutch control pedals in a cab, which are respectively used for controlling the clutch of the gearbox and the clutch for controlling the rear output.

Traditional engine transmits power respectively for back output and gearbox through two sets of independent clutches respectively, and I selects the tractor gearbox of new design research and development to change traditional gearbox structure, and power transmits for the gearbox through engine and clutch, two powers of gearbox redistribution, and one is used for the walking, and another is used for back output transmission, so current clutch independent action's structure can't the direct use, needs redesign.

Disclosure of Invention

The to-be-solved technical problem of the utility model is weak point to prior art exists, a novel double clutch assembly for tractor is provided, this clutch is applied to high-power tractor, under the condition that does not increase clutch friction plate size, utilize two sets of parallel arrangement's friction disc to realize power transmission, in order to prevent rocking in the clearance of double action clamp plate when frictional force separation, set up reset spring in double action clamp plate both sides, both guaranteed breaking away from rapidly between double action clamp plate and the friction disc, guaranteed that double action clamp plate is located central point between two friction discs and put, can not rock in the clearance, utilize reset spring to realize the autosegregation of clutch, moreover, the steam generator is simple in structure, high durability and convenient use.

The technical solution of the utility model is that, a following novel double disc clutch assembly for tractor is provided, including the shell body, install floating pressing plate, the parallel arrangement that can axial displacement on the shell body in the shell body at least two sets of friction discs and be located the double action clamp plate between adjacent two sets of friction discs, be equipped with compression spring between floating pressing plate and the shell body, compression spring normality makes closely laminating between two sets of friction discs and the double action clamp plate, utilizes frictional force transmission power.

Preferably, the periphery of the double-acting pressure plate is based on the center of the double-acting pressure plate, at least two mounting parts are arranged in an array mode, return springs are arranged on two surfaces of the mounting parts, and the return springs are connected through pins.

Preferably, the friction plates are divided into two groups, namely a first friction plate and a second friction plate, and a fixing seat for connecting the friction plates and the transmission shaft is arranged at the center of the first friction plate and the second friction plate.

Preferably, the outer housing has a bowl-shaped structure with one side open, and the opening of the outer housing is connected to the engine flywheel.

Preferably, the center of the bottom of the outer shell is provided with a mounting hole for mounting a transmission shaft, a clutch separation power assembly is arranged on the mounting hole, and a clutch lever jaw can be extruded under the action of external force of the clutch separation power assembly, so that the floating pressure plate is separated from one side of the first friction plate.

Preferably, the clutch separation power assembly is sleeved on the sleeve, a transmission shaft is installed inside the sleeve, and one end, close to the clutch friction plate, of the transmission shaft is connected with the fixed seat through the scribing teeth.

Preferably, the engine flywheel is provided with a positioning hole for positioning the transmission shaft, and a bearing is arranged between the transmission shaft and the engine flywheel.

Preferably, the floating pressure plate is provided with a positioning pin for fixing the compression spring, one end of the compression spring is sleeved on the positioning pin, the other end of the compression spring is in contact with the inner side surface of the bottom of the outer shell, and the inner side surface of the bottom of the outer shell is provided with a limiting concave hole.

Preferably, the engine flywheel and the outer shell are fixedly connected through bolts or screws.

The beneficial effects of the technical scheme are as follows: this clutch is applied to high-power tractor, under the condition that does not increase clutch friction plate size, utilize two sets of parallel arrangement's friction disc to realize power transmission, in order to prevent rocking of two effect clamp plates in the clearance when frictional force separates, set up reset spring in two effect clamp plates both sides, both guaranteed to break away from rapidly between two effect clamp plates and the friction disc, guaranteed that two effect clamp plates are located central point between two friction discs and put, can not rock in the clearance, utilize reset spring to realize the autosegregation of clutch, moreover, the steam generator is simple in structure, high durability and convenient use, the clutch of the technical scheme is with power transmission, subsequent walking and back output transmission can be controlled to a clutch, high durability and convenient use.

Drawings

Fig. 1 is a schematic structural diagram of a novel twin-plate clutch assembly for a tractor.

Fig. 2 is a half sectional view (one) of fig. 1.

Fig. 3 is a half sectional view (ii) of fig. 1.

Fig. 4 is a schematic perspective view of fig. 1.

Detailed Description

For convenience of explanation, the novel twin-plate clutch assembly for a tractor of the invention is described in detail below with reference to the accompanying drawings.

As shown in fig. 1 to 4, a novel double-plate clutch assembly for a tractor comprises an outer shell 1, a floating pressure plate 2 which is mounted on the outer shell 1 and can move axially, at least two groups of friction plates 3 which are arranged in the outer shell 1 in parallel, in the embodiment, two groups of friction plates are adopted, and a double-acting pressure plate 4 which is positioned between two adjacent groups of friction plates 3 is adopted, a compression spring 5 is arranged between the floating pressure plate 2 and the outer shell 1, the two groups of friction plates 3 are tightly attached to the double-acting pressure plate 4 in a normal state through the compression spring 5, power is transmitted by using friction force, the periphery of the double-acting pressure plate 4 is based on the center of the double-acting pressure plate 4, at least two mounting parts 6 are arranged in an array mode, in the embodiment, three mounting parts 6 are adopted, return; the friction plates 3 are divided into two groups, namely a first friction plate 3.1 and a second friction plate 3.2, and a fixed seat 10 for connecting the friction plates 3 and the transmission shaft 9 is arranged at the center positions of the first friction plate 3.1 and the second friction plate 3.2; the outer shell 1 is a bowl-shaped structure with an opening at one side, and the opening part of the outer shell 1 is connected with an engine flywheel 11; a mounting hole 19 for mounting the transmission shaft 9 is formed in the center of the bottom of the outer shell 1, a clutch separation power assembly 12 is arranged on the mounting hole, the clutch separation power assembly is of a traditional structure, specific structures are not repeated, the clutch separation power assembly can slide on the sleeve by using external force and move towards the direction of the clamping jaw, and the clutch bar clamping jaw 13 can be extruded under the action of the external force of the clutch separation power assembly 12, so that the floating pressure plate is separated from one side of the first friction plate 3.1; the clutch separation power assembly 12 is sleeved on a sleeve 14, a transmission shaft 9 is installed inside the sleeve 14, and one end, close to the clutch friction plate 3, of the transmission shaft 9 is connected with the fixed seat 10 through scribing teeth; a positioning hole 15 for positioning the transmission shaft 9 is formed in the engine flywheel 11, and a bearing 16 is arranged between the transmission shaft 9 and the engine flywheel 11; a positioning pin 17 for fixing the compression spring 5 is arranged on the floating pressure plate 2, one end of the compression spring 5 is sleeved on the positioning pin 17, the other end of the compression spring 5 is in contact with the inner side surface of the bottom of the outer shell 1, and a limiting concave hole is formed in the inner side surface of the bottom of the outer shell 1; the engine flywheel 11 and the outer shell 1 are fixedly connected through bolts or screws 18.

The working principle is as follows: under the normal state, the engine power is output through the engine flywheel, the engine flywheel is connected with the outer shell, the outer shell rotates coaxially with the engine flywheel, due to the action of a plurality of pressure springs inside the clutch, the floating pressure plate extrudes the first friction plate, the first friction plate extrudes one surface of the double-acting pressure plate, the other surface of the double-acting pressure plate extrudes the second friction plate, the first friction plate and the second friction plate rotate coaxially and synchronously along with the outer shell, the first friction plate and the second friction plate drive the transmission shaft to rotate by utilizing the fixed seat and the scribing teeth, and the transmission shaft transmits the power to the gearbox.

When the clutch pedal is stepped on, the clutch separation power assembly moves towards one side of the clutch, and a clutch lever claw arranged on the floating pressure plate is extruded, the lever action is utilized to draw the floating pressure plate towards the side away from the friction plate, and the pressure of the pressure spring is overcome, so that the floating pressure plate is away from the first friction plate, after the first friction plate loses external acting force, the pressure between the first friction plate and the double-acting pressure plate is lost, the friction force disappears, and in the same way, the pressure between the double-acting pressure plate and the second friction plate is lost, and the friction force disappears.

In summary, compared with the prior art, the technical scheme is used for power separation between the engine and the gearbox, and utilizes two sets of friction plates to provide stronger friction force, so as to improve the power transmission effect, however, no matter how many sets of friction plates are arranged in the clutch of the traditional structure, two sets of clutches are arranged in the clutch, one set of clutches is used for realizing separation and attachment between the gearbox and the engine, and the other set of clutches is used for separation and attachment between the engine and the rear output.

In addition, this technical scheme utilizes compression spring's powerful to realize the laminating transmission between friction disc and the two effect clamp plates, and pressure is strong, and power transmission is effectual, effectively prevents to skid, and power loss is little, sets up reset spring in two effect clamp plates both sides, has realized the quick separation between the friction disc of two effect clamp plates and clutch, and the action is rapid, and braking effect is good, has also solved the rocking scheduling problem that produces after two effect clamp plates and the separation of both sides friction disc simultaneously.

In the above embodiments, the best mode of the present invention has been described, it is obvious that many changes can be made under the inventive concept of the present invention, and it should be noted that any changes made under the inventive concept of the present invention will fall within the protective scope of the present invention.

Claims

1. The utility model provides a tractor is with novel double-disc clutch assembly, includes shell body (1), install on shell body (1) floating pressing plate (2) that can axial displacement, at least two sets of friction disc (3) of parallel arrangement in shell body (1) and be located double-acting clamp plate (4) between adjacent two sets of friction disc (3), characterized by: a compression spring (5) is arranged between the floating pressing plate (2) and the outer shell (1), the two groups of friction plates (3) are tightly attached to the double-acting pressing plate (4) in a normal state of the compression spring (5), and power is transmitted by using friction force.

2. The new twin plate clutch assembly for tractors as claimed in claim 1, wherein: the periphery of the double-acting pressing plate (4) is based on the center of the double-acting pressing plate (4), at least two installation parts (6) are arranged in an array mode, two surfaces of each installation part (6) are provided with return springs (7), and the return springs (7) are connected through pins (8).

3. The new twin plate clutch assembly for tractors as claimed in claim 1, wherein: the friction plates (3) are divided into two groups, namely a first friction plate (3.1) and a second friction plate (3.2), and a fixing seat (10) for connecting the friction plates (3) and the transmission shaft (9) is arranged at the center positions of the first friction plate (3.1) and the second friction plate (3.2).

4. The new twin plate clutch assembly for tractors as claimed in claim 1, wherein: the outer shell (1) is of a bowl-shaped structure with an opening at one side, and the opening part of the outer shell (1) is connected with the engine flywheel (11).

5. The novel twin plate clutch assembly for tractors as set forth in claim 4, wherein: the center of shell body (1) bottom is equipped with the mounting hole that is used for installing transmission shaft (9), be equipped with clutch separation power assembly (12) on the mounting hole, clutch separation power assembly (12) exogenic action can extrude clutch lever jack catch (13) down to the realization is floated the pressure disk and is separated from one side of first friction disc (3.1).

6. The novel twin plate clutch assembly for tractors as set forth in claim 5, wherein: clutch separation power assembly (12) suit is on sleeve (14), sleeve (14) internally mounted has transmission shaft (9), transmission shaft (9) are connected with fixing base (10) through the marking tooth near the one end of clutch friction disc (3).

7. The novel twin plate clutch assembly for tractors as set forth in claim 6, wherein: the engine flywheel (11) is provided with a positioning hole (15) for positioning the transmission shaft (9), and a bearing (16) is arranged between the transmission shaft (9) and the engine flywheel (11).

8. The novel twin plate clutch assembly for tractors as set forth in claim 4, wherein: be equipped with locating pin (17) that are used for fixed compression spring (5) on floating pressure plate (2), the one end suit of compression spring (5) is on locating pin (17), the other end of compression spring (5) and the bottom medial surface contact of shell body (1), the bottom medial surface of shell body (1) is equipped with spacing shrinkage pool.

9. A new twin plate clutch assembly for a tractor according to claim 4 or 8 wherein: the engine flywheel (11) is fixedly connected with the outer shell (1) through bolts or screws (18).