CN210531446U

CN210531446U - Agricultural tractor clutch

Info

Publication number: CN210531446U
Application number: CN202020531813.4U
Authority: CN
Inventors: 王兴洪
Original assignee: Ningbo Benye Heavy Industry Co ltd
Current assignee: Ningbo Benye Heavy Industry Co ltd
Priority date: 2020-04-13
Filing date: 2020-04-13
Publication date: 2020-05-15
Anticipated expiration: 2030-04-13

Abstract

The utility model provides an agricultural tractor clutch device, which comprises a main shaft, a pressure plate assembly and a driven plate, wherein the main shaft is rotationally arranged in a gap bridge shell; the pressure plate assembly comprises a sleeve, a bearing seat, a release bearing, a support ring, a diaphragm spring and a pressure plate body, wherein the sleeve is sleeved outside the main shaft, the end part of the sleeve is rigidly connected in the gap bridge shell, the bearing seat is arranged outside the sleeve in a sliding manner, the support ring is used for being connected with the flywheel, the pressure plate body is arranged in the support ring in a sliding manner, a first reset spring is arranged between the support ring and the pressure plate body, the first reset spring enables the pressure plate body to have a leftward movement trend, the diaphragm spring is arranged in the pressure plate body, the inner wall of the diaphragm spring radially extends inwards to form a pushing part, and the pushing part is positioned on an axial sliding path of the release; and the driven disc is in sliding fit with the end part of the main shaft through a spline. The utility model discloses agricultural tractor clutch, compact structure, equipment convenient and fast and separation and reunion effect are reliable and stable.

Description

Agricultural tractor clutch

Technical Field

The utility model relates to an agricultural tractor, in particular to an agricultural tractor clutch.

Background

With the development of industry, the progress of agriculture is also obviously improved, various devices appear, the traditional cattle cultivation and manual initialization production are replaced, the production efficiency is also greatly improved, a walking tractor is taken as an example, the walking tractor is a transportation tool and agricultural machinery popular in villages and towns in China, and a diesel engine is taken as power, so that the walking tractor is popular with farmers due to the characteristics of small size, flexibility and strong power. The drive type, the traction type, and the combined drive and traction type are classified according to the working performance. The driving type is mainly matched with the rotary cultivator for operation, so the machine is also called a power cultivator; the traction type is mainly matched with traction type farm tools for operation; the dual-purpose type can be matched with a rotary cultivator for operation, and can be matched with a traction farm tool for operation or matched with a trailer for transportation operation.

The clutch assembly belongs to a transmission system of a tractor, can timely combine or separate an engine and a gearbox, namely, transmits power or cuts off the power, comprises a clutch shaft, a clutch plate and the like, and is complex in structure, inconvenient to maintain and poor in pressure plate action stability.

SUMMERY OF THE UTILITY MODEL

【1】 Technical problem to be solved

The to-be-solved technical problem of the utility model is to provide a compact structure, equipment convenience and separation and reunion effectual agricultural tractor clutch.

【2】 Technical scheme for solving problems

The utility model provides an agricultural tractor clutch installs in gap bridge casing 1, include:

a main shaft 2 rotatably mounted in the gap bridge housing 1;

the pressure plate assembly is arranged coaxially with the main shaft and comprises a sleeve 6, a bearing seat 72, a release bearing 8, a support ring 9, a diaphragm spring 12 and a pressure plate body 13, the sleeve is sleeved outside the main shaft, the end part of the sleeve is rigidly connected into the gap bridge shell 1, the bearing seat is arranged outside the sleeve in a sliding mode, the support ring is used for being connected with a flywheel, the pressure plate body is arranged in the support ring 9 in a sliding mode, a first reset spring 10 is arranged between the support ring and the pressure plate body, the first reset spring enables the pressure plate body to have a leftward movement trend, the diaphragm spring is installed in the pressure plate body, the inner wall of the diaphragm spring extends radially inwards to form a pushing part 1202, and the pushing part is located on an axial sliding path of the release bearing;

and a driven disc 14 which is in sliding fit with the end part of the main shaft through a spline.

Further, including the sliding fit in the outer spline housing 71 of cover, the bearing frame is fixed the tip of spline housing, the spline housing with form the step face between the bearing frame, release bearing installs on the bearing frame, and its tip with step face contact.

Further, a second return spring 5 is arranged between the spline housing and the gap bridge shell, and the second return spring enables the spline housing to move towards the right.

Furthermore, the right-hand member face circumference equipartition of pressure disk body has guide hole 1301, sliding fit has guide arm 11 in the guide hole, the right-hand member of guide arm with support ring rigid connection.

Further, a clamping portion 1302 is arranged on the outer edge of the right end of the pressure plate body, an annular mounting groove 13021 is formed in the inner wall of the clamping portion, the end portion of the diaphragm spring is clamped in the annular mounting groove, and the guide rod is connected with the diaphragm spring.

Further, a protrusion is provided at the right end of the annular mounting groove and forms a support portion 1303, and the end of the support portion is in contact with the diaphragm spring.

Further, the outer edge of the diaphragm spring is bent to form a positioning groove 1201, and the end of the supporting portion is in contact with the bottom surface of the positioning groove.

Furthermore, the side wall of the guide rod is provided with a pin hole, the axis of the pin hole is vertical to and intersected with the axis of the guide rod, a pin shaft 1304 is sleeved in the pin hole, and two ends of the pin shaft extend out of the guide rod and are rigidly connected with the diaphragm spring.

【3】 Advantageous effects

The clutch device of the agricultural tractor of the utility model has the advantages that the driven plate and the bearing seat are installed through the spline, and the operation reliability is good; the bearing seat is arranged on the spline sleeve, so that the manufacturing cost is low and the assembly is convenient and quick; the pressure plate body is connected through the guide rod, the structure is compact, the transmission is stable, the end part of the diaphragm spring is arranged in the annular mounting groove, and the mounting strength is high; the hinge pin and the supporting part are arranged to form a lever principle, so that the operation is stable and labor-saving; the diaphragm spring is provided with the positioning groove, so that the positioning and assembling are convenient and quick, the strength is high, and the stability is good; the utility model discloses agricultural tractor clutch, compact structure, equipment convenient and fast and separation and reunion effect are reliable and stable.

Drawings

FIG. 1 is a schematic structural view of the clutch device of the agricultural tractor according to the present invention;

fig. 2 is an enlarged view of a portion a in fig. 1.

Detailed Description

The embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

Referring to fig. 1 and 2, the utility model provides an agricultural tractor clutch device, which is installed in a gap bridge shell 1 and comprises a main shaft, a pressure plate assembly and a driven plate;

each mechanism is explained in detail below;

for convenience of description, the mounting position of the driven plate is defined as the left, and the mounting position of the pressure plate assembly is defined as the right.

The main shaft is rotatably arranged in the gap bridge shell 1 through a bearing, and an oil seal is arranged between the main shaft and the gap bridge shell for improving the sealing property;

the platen assembly is arranged coaxially with the main shaft, specifically, the platen assembly comprises a sleeve 6, a bearing seat 72, a release bearing 8, a support ring 9, a diaphragm spring 12 and a platen body 13, the sleeve is sleeved on the main shaft, the inner wall of the sleeve is not contacted with the main shaft, and the end part of the right end of the sleeve is rigidly connected in the gap bridge shell 1; a second return spring 5 is arranged between the spline housing and the gap bridge shell, and the second return spring enables the spline housing to move towards the right; the whole supporting ring is horn-shaped and is used for being connected with a flywheel, the pressure plate body is arranged in the supporting ring 9 in a sliding mode, specifically, guide holes 1301 are uniformly distributed in the circumferential direction of the right end face of the pressure plate body, guide rods 11 are arranged in the guide holes in a sliding mode, and the right ends of the guide rods are rigidly connected with the supporting ring; the diaphragm spring is installed in the pressure plate body, specifically, a clamping part 1302 is arranged on the outer edge of the right end of the pressure plate body, the clamping part is annular as a whole, an annular installation groove 13021 is formed in the inner wall of the clamping part, the end part of the diaphragm spring is located in the annular installation groove, a bulge is arranged on the right end of the annular installation groove and forms a supporting part 1303, meanwhile, the outer edge of the diaphragm spring is bent into a v shape and forms a positioning groove 1201, the end part of the supporting part is in contact with the bottom surface of the positioning groove, the positioning and assembling are convenient, and the operation stability can be improved; in the embodiment, through welding and fixing, the inner wall of the diaphragm spring radially extends inwards to form a pushing part 1202, the pushing part is bent into an arc structure protruding towards one side of the release bearing, the pushing part is positioned on an axial sliding path of the release bearing, when the spline sleeve is stressed to move leftwards, the release bearing is driven to axially move leftwards, the end part of the release bearing can press the pushing part to move, and a lever principle is formed among the pushing part, the pin shaft and the supporting part to push the pressure plate body to move rightwards; in this embodiment, the distance between the pushing portion and the pin is L1, the distance between the supporting portion and the pin is L2, and L1 is greater than L2, in this embodiment, L1 is greater than 3 times of L2, and in order to reduce the corresponding time, the distance between the pushing portion and the release bearing is greater than 1.5mm and less than 3m in the reset state.

Driven disk 14 is slip-fitted to the end of the spindle by splines, which enable it to slide along the axis.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides an agricultural tractor clutch installs in the gap bridge casing, its characterized in that includes:

a main shaft rotatably mounted within the gap bridge housing;

the pressure plate assembly is coaxial with the main shaft and comprises a sleeve, a bearing seat, a release bearing, a support ring, a diaphragm spring and a pressure plate body, the sleeve is sleeved outside the main shaft, the end part of the sleeve is rigidly connected in the gap bridge shell, the bearing seat is arranged outside the sleeve in a sliding mode, the support ring is used for being connected with a flywheel, the pressure plate body is arranged in the support ring in a sliding mode, a first reset spring is arranged between the support ring and the pressure plate body, the first reset spring enables the pressure plate body to have a leftward movement trend, the diaphragm spring is arranged in the pressure plate body, the inner wall of the diaphragm spring extends inwards in the radial direction to form a pushing part, and the pushing part is located on an axial sliding path of the release bearing;

and the driven disc is in sliding fit with the end part of the main shaft through a spline.

2. An agricultural tractor clutching device as claimed in claim 1, wherein: the bearing seat is fixed at the end part of the spline sleeve, a step surface is formed between the spline sleeve and the bearing seat, and the release bearing is installed on the bearing seat and the end part of the release bearing is in contact with the step surface.

3. An agricultural tractor clutching device as claimed in claim 2, wherein: and a second return spring is arranged between the spline sleeve and the gap bridge shell, and the second return spring enables the spline sleeve to have a rightward movement trend.

4. An agricultural tractor clutching device as claimed in claim 1, wherein: the right-hand member face circumference equipartition of pressure disk body has the guide hole, sliding fit has the guide arm in the guide hole, the right-hand member of guide arm with support ring rigid connection.

5. An agricultural tractor clutching device as claimed in claim 4, wherein: the right-hand member outer fringe of pressure disk body is equipped with joint portion, the inner wall of joint portion is equipped with annular mounting groove, diaphragm spring's tip card is established in the annular mounting groove, the guide arm with diaphragm spring connects.

6. An agricultural tractor clutching device as claimed in claim 5, wherein: the right end of the annular mounting groove is provided with a bulge and forms a supporting part, and the end part of the supporting part is in contact with the diaphragm spring.

7. An agricultural tractor clutching device as claimed in claim 6, wherein: the outer edge of the diaphragm spring is bent to form a positioning groove, and the end part of the supporting part is in contact with the bottom surface of the positioning groove.

8. An agricultural tractor clutching device as claimed in claim 5, wherein: the side wall of the guide rod is provided with a pin hole, the axis of the pin hole is vertical to and intersected with the axis of the guide rod, a pin shaft is sleeved in the pin hole, and two ends of the pin shaft extend out of the guide rod and are rigidly connected with the diaphragm spring.