CN220828453U

CN220828453U - Tractor brake

Info

Publication number: CN220828453U
Application number: CN202322612448.6U
Authority: CN
Inventors: 王飞
Original assignee: Weifang Baohong Machinery Co ltd
Current assignee: Weifang Baohong Machinery Co ltd
Priority date: 2023-09-25
Filing date: 2023-09-25
Publication date: 2024-04-23
Anticipated expiration: 2033-09-25

Abstract

A tractor brake relates to the technical field of brakes, and comprises a shell, wherein a containing cavity is concavely arranged on the shell, the bottom of the containing cavity is a flat plane, and a friction plate I, a baffle plate, a friction plate II and a pressure plate are sequentially arranged in the containing cavity from bottom to top; the outer side of the shell is integrally provided with a lug with a hollow inside, the inside of the lug is communicated with the accommodating cavity, the lug is rotationally provided with a rotating shaft, and one end of the rotating shaft extends out of the lug and is connected with the rocker arm; the rotating shaft is connected with one end of the deflector rod, and the other end of the deflector rod is connected with the pressure plate; the outer wall of the pressure plate is convexly provided with a connecting part matched with the deflector rod, the connecting part comprises a main clamping protrusion and an auxiliary clamping protrusion, a clamping groove is formed between the main clamping protrusion and the auxiliary clamping protrusion, the top of the clamping groove is opened, and the other end of the deflector rod is clamped with the clamping groove. The utility model has simple and practical structure, reduces the processing difficulty and meets the braking requirement; meanwhile, the problems that the transmission brake is easy to heat and leak are solved, the production efficiency is improved, and the production cost is reduced.

Description

Tractor brake

Technical Field

The utility model relates to the technical field of brakes, in particular to a tractor brake.

Background

The function of the brake is mainly to stop, and the friction moment is directly generated to force the tractor wheels to slow down or stop, so that the tractor can slow down or stop within the shortest distance, the speed is limited when the tractor runs down, the tractor is reliably parked in place and kept still, and therefore, the brake must have enough braking force and good braking stability.

For a tractor, when braking, a pressure plate in the brake rotates relatively through a pedal control mechanism, a ball body of a bearing positioned on the outer side of the pressure plate rotates and is unchanged in position, the pressure plate is forced to press a friction plate to brake, and the braking requirement is met.

Meanwhile, as the pressing plate is required to be connected with the stirring piece, the traditional pressing plate is required to be provided with a through hole on the connecting lug so as to be connected with the stirring piece, so that the processing difficulty is increased, the quick production cannot be met, the production efficiency is affected, and the processing cost is also increased.

Disclosure of utility model

In view of this, the technical problems to be solved by the present utility model are: the tractor brake is simple and practical in structure, the processing difficulty is reduced, and the braking requirement is met; meanwhile, the problems that the transmission brake is easy to heat and leak are solved, the production efficiency is improved, and the production cost is reduced.

In order to solve the technical problems, the technical scheme of the utility model is as follows:

The tractor brake comprises a shell, wherein a containing cavity is concavely formed in the shell, the bottom of the containing cavity is a flat plane, and a first friction plate, a partition plate, a second friction plate and a pressure plate are sequentially arranged in the containing cavity from bottom to top;

The outer side of the shell is integrally provided with a lug with a hollow inside, the inside of the lug is communicated with the accommodating cavity, the lug is rotationally provided with a rotating shaft, and one end of the rotating shaft extends out of the lug and is connected with the rocker arm; the rotating shaft is connected with one end of the deflector rod, and the other end of the deflector rod is connected with the pressure plate;

The outer wall of the pressure plate is convexly provided with a connecting part matched with the deflector rod, the connecting part comprises a main clamping protrusion and an auxiliary clamping protrusion, a clamping groove is formed between the main clamping protrusion and the auxiliary clamping protrusion, the top of the clamping groove is opened, and the other end of the deflector rod is clamped with the clamping groove.

Preferably, the rotating shaft is connected with the deflector rod through a spline.

Preferably, a spacer bush is sleeved on the rotating shaft, and the spacer bush is positioned between the inner wall of the protruding block and the deflector rod.

Preferably, the pressure plate is provided with a plurality of weight-reducing grooves and a plurality of braking grooves, and the weight-reducing grooves and the braking grooves are arranged at intervals;

The weight reducing grooves and the braking grooves are circumferentially equidistant around the axis of the pressure plate, the braking grooves are located on the end face, far away from the two sides of the friction plate, of the pressure plate, and the braking grooves are circular grooves.

Preferably, the shell is provided with a plurality of bolt mounting holes, and the bolt mounting holes are arranged in the same direction along the axial direction of the accommodating cavity;

And a plurality of limiting grooves are concavely formed in the inner wall of the containing cavity.

Preferably, a plurality of limit protrusions are arranged on the outer wall of the partition plate along the radial direction of the partition plate in a protruding mode, the limit protrusions are matched with the limit grooves, and the limit protrusions are identical in number with the limit grooves and are rectangular.

Preferably, the first friction plate and the second friction plate have the same structure and comprise friction plate bodies, and lining sheets with annular structures are respectively arranged on two end faces of the friction plate bodies.

Preferably, the friction plate body is provided with a friction plate center through hole;

The friction plate body is provided with a plurality of oil penetration holes, and the oil penetration holes are positioned between the center through hole of the friction plate and the lining.

Preferably, the center through hole of the friction plate is a spline hole.

Preferably, the lining is concavely provided with a waffle groove.

After the technical scheme is adopted, the utility model has the beneficial effects that:

Because the utility model is provided with the shell, the shell is concavely provided with the containing cavity, the bottom of the containing cavity is a flat plane, and the containing cavity is internally and coaxially provided with the friction plate I, the baffle plate, the friction plate II and the pressure plate from bottom to top in sequence; the shell is integrally provided with a lug, the inside of the lug is communicated with the accommodating cavity, a rotating shaft is rotatably arranged in the lug, one end of the rotating shaft is connected with the rocker arm, the rotating shaft is detachably connected with the deflector rod, and the other end of the deflector rod is connected with the pressure plate; when the rocker arm drives the rotating shaft to rotate, the rotating shaft can drive the deflector rod to rotate together, at the moment, the deflector rod dials the pressure plate to rotate together around the axis of the pressure plate, the pressure plate presses the second friction plate under the action of the ball body of the bearing at the outer side of the pressure plate, the second friction plate is abutted against the partition plate and matched with the first friction plate to perform friction braking, and the braking effect is achieved.

The outer wall of the pressure plate is convexly provided with a connecting part matched with the deflector rod, the connecting part comprises a main clamping protrusion and an auxiliary clamping protrusion, a clamping groove is formed between the main clamping protrusion and the auxiliary clamping protrusion, the top of the clamping groove is opened, and the other end of the deflector rod is clamped with the clamping groove; when the driving lever is connected with the connecting part, one end of the driving lever is directly clamped into the clamping groove, and is matched with the main clamping bulge and the auxiliary clamping bulge to finish stirring the pressure plate.

Drawings

The utility model will be further described with reference to the drawings and examples.

FIG. 1 is a schematic view of a tractor brake according to an embodiment of the present utility model;

FIG. 2 is a cross-sectional view of FIG. 1;

FIG. 3 is an exploded view of FIG. 1;

FIG. 4 is a schematic view of the platen of FIG. 3;

FIG. 5 is a schematic view of the housing of FIG. 3;

FIG. 6 is a schematic view of the friction plate of FIG. 3;

In the figure:

1. a housing; 11. a cavity; 12. a bolt mounting hole; 13. a limit groove;

2. a first friction plate;

3. a partition plate; 31. a limit protrusion;

4. A friction plate II; 41. a friction plate body; 42. a liner; 43. a friction plate center through hole; 44. oil penetration holes; 45. hua Fucao;

5. A pressure plate; 51. a connection part; 52. a main clamping protrusion; 53. the auxiliary clamping protrusion; 54. a clamping groove; 55. a weight-reducing groove; 56. a braking groove;

6. a bump;

7. a rotating shaft; 71. a spacer bush; 72. a gasket; 73. a retainer ring;

8. a rocker arm;

9. a deflector rod.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

The terms such as "front", "rear", "left", "right", "middle" and the like are also used in the present specification for convenience of description, but are not intended to limit the scope of the present utility model, and the changes or modifications of the relative relationship thereof are considered to be within the scope of the present utility model without substantial modification of the technical content.

As shown in fig. 1 to 4 together, the utility model comprises a shell 1, wherein a containing cavity 11 is concavely arranged on the shell 1, the bottom of the containing cavity 11 is a flat plane, and a friction plate I2, a baffle plate 3, a friction plate II 4 and a pressure plate 5 are sequentially arranged in the containing cavity 11 from bottom to top; the containing cavity 11, the first friction plate 2, the partition plate 3, the second friction plate 4 and the pressure plate 5 are coaxially arranged.

The outer side of the shell 1 is integrally provided with a lug 6 with a hollow inside, the inside of the lug 6 is communicated with the accommodating cavity 11, a rotating shaft 7 is rotatably arranged in the lug 6, and one end of the rotating shaft 7 extends out of the lug 6 and is connected with the rocker arm 8; the rotating shaft 7 is connected with one end of the deflector rod 9, and the other end of the deflector rod 9 is connected with the pressure plate 5; the other end of pivot 7 is located the outside of lug 6, and the cover is equipped with packing ring 72 on the pivot 7, and the joint has retaining ring 73 and is located the outside of packing ring 72 on the pivot 7, satisfies the rotation needs of pivot 7, and improves the stability in use of pivot 7.

The driving lever 9 is arranged along the radial direction of the containing cavity 11, when the rocker arm 8 drives the rotating shaft 7 to rotate, the rotating shaft 7 can drive the driving lever 9 to rotate together, at the moment, the driving lever 9 drives the pressure plate 5 to rotate together around the axis of the pressure plate 5, under the action of the ball body of the bearing at the outer side of the pressure plate 5, the pressure plate 5 compresses the friction plate two 4, the friction plate two 4 is attached to the partition plate 3 and matched with the friction plate one 2, friction braking is carried out, braking effect is achieved, compared with a brake with a traditional structure, good attaching and pressing effect is achieved between the bottom of the containing cavity 11 and the friction plate one 2, friction and braking effect can be guaranteed without arranging the partition plate 3 between the two, the structure is simple, assembly and maintenance are easy, and production cost is reduced.

The outer wall of the pressure plate 5 is convexly provided with a connecting part 51 matched with the deflector rod 9, the connecting part 51 comprises a main clamping protrusion 52 and a secondary clamping protrusion 53, a clamping groove 54 is formed between the main clamping protrusion 52 and the secondary clamping protrusion 53, the top of the clamping groove 54 is opened, and the other end of the deflector rod 9 is clamped with the clamping groove 54; the engagement groove 54 is provided along the radial direction of the platen 5. When the deflector rod 9 is connected with the connecting part 51, one end of the deflector rod 9 is directly clamped into the clamping groove 54, and is matched with the main clamping bulge 52 and the auxiliary clamping bulge 53 to finish stirring the pressure plate 5, compared with a traditional deflector rod and pressure plate connecting structure, the connection between the deflector rod and the pressure plate can be realized without drilling holes in connecting lugs on the outer wall of the pressure plate 5, and the deflector rod is simple in structure, reduces the production difficulty, improves the production efficiency and reduces the production cost.

In the utility model, the rotating shaft 7 is connected with the deflector rod 9 through the spline, the deflector rod 9 is sleeved on the rotating shaft 7 and is in spline fit, so that the deflector rod 9 is convenient to detach and the deflector rod 9 is also convenient to drive to rotate together.

In order to prevent the shift lever 9 from moving along the axial direction of the rotating shaft 7, the rotating shaft 7 is sleeved with a spacer 71, and the spacer 71 is positioned between the inner wall of the protruding block 6 and the shift lever 9.

In the utility model, a plurality of weight-reducing grooves 55 and a plurality of braking grooves 56 are arranged on a pressure plate 5, and the weight-reducing grooves 55 and the braking grooves 56 are arranged at intervals; the weight-reducing grooves 55 and the braking grooves 56 are circumferentially and equidistantly distributed around the axis of the pressure plate 5, the weight-reducing grooves 55 can reduce materials, reduce cost and facilitate installation, the braking grooves 56 are located on the end face, far away from the second friction plate 4, of the pressure plate 5, and the braking grooves 56 are circular grooves.

The traditional braking groove adopts a water drop shape, and the braking groove with the shape is inconvenient to process.

As shown in fig. 3 and 5, the casing 1 is provided with a plurality of bolt mounting holes 12, and the bolt mounting holes 12 are arranged along the axial direction of the accommodating cavity 11 in the same direction; the inner wall of the accommodating cavity 11 is concavely provided with a plurality of limiting grooves 13, and the limiting grooves 13 are used for limiting the baffle plate 3 to rotate around the axis of the accommodating cavity 11.

Specifically, a plurality of limit protrusions 31 are convexly arranged on the outer wall of the partition plate 3 along the radial direction of the partition plate 3, the limit protrusions 31 are matched with the limit grooves 13, and the limit protrusions 31 and the limit grooves 13 are consistent in number and rectangular; the traditional limit groove is a semicircular groove, and compared with the traditional limit groove, the limit of the rectangular limit groove is more reliable.

During installation, the spacing protruding 31 joint is in the inside of spacing recess 13, and baffle 3 receives the rotation influence when pressure disk 5 stir, can produce circumference turning force, and at this moment, spacing protruding 31 restriction baffle 3 takes place to rotate, has improved the friction effect.

As shown in fig. 3 and 6, the first friction plate 2 and the second friction plate 4 have the same structure and each include a friction plate body 41, wherein the two end surfaces of the friction plate body 41 are respectively provided with a lining 42 with a ring structure, and the linings 42 and the friction plate body 41 are coaxially arranged; the center of the friction plate body 41 is provided with a friction plate center through hole 43; preferably, the friction plate center through hole 43 is a splined hole; the friction plate body 41 is circumferentially provided with a plurality of oil penetration holes 44 around the axis of the friction plate body 41, and the oil penetration holes 44 are positioned between the friction plate center through hole 43 and the lining 42.

The grooves 45 are recessed in the lining 42, and the grooves 45 are provided to accelerate the flow rate of the lubricating oil on the lining 42, thereby effectively improving the cooling effect of the friction plate body 41 and the lining 42 and improving the frictional wear characteristics of the lining 42.

After the tractor brake is installed on a tractor, at the moment, a ball body on the outer side of a pressure plate 5 is positioned in a brake groove 56, when braking is carried out, a rocker arm 8 is lifted by a pedal operation mechanism, the rocker arm 8 drives a rotating shaft 7 to rotate, the rotating shaft 7 drives the pressure plate 5 to rotate by a deflector rod 9, when the rotating shaft rotates, the brake groove 56 rotates relatively to the ball body, the position of the ball body is unchanged, the ball body presses the groove wall of the brake groove 56, and then the pressure plate 5 is pressed against one side of a friction plate two 4, so that the pressure plate 5 presses the friction plate two 4, the friction plate two 4 is abutted against a partition plate 3 and matched with the friction plate one 2, and friction braking is carried out, so that a braking effect is realized.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims

1. The tractor brake is characterized by comprising a shell, wherein a containing cavity is concavely arranged on the shell, the bottom of the containing cavity is a flat plane, and a friction plate I, a baffle plate, a friction plate II and a pressure plate are sequentially arranged in the containing cavity from bottom to outside;

2. The tractor brake of claim 1, wherein the shaft is splined to the lever.

3. The tractor brake of claim 1, wherein a spacer is sleeved on the shaft, the spacer being located between an inner wall of the projection and the lever.

4. The tractor brake of claim 1, wherein the pressure plate is provided with a plurality of weight-reducing grooves and a plurality of braking grooves, the weight-reducing grooves being spaced from the braking grooves;

5. The tractor brake of claim 1, wherein the housing is provided with a plurality of bolt mounting holes, the bolt mounting holes being disposed in the same direction along the axial direction of the cavity;

6. The tractor brake of claim 5, wherein a plurality of limit protrusions are arranged on the outer wall of the partition plate along the radial direction of the partition plate, the limit protrusions are matched with the limit grooves, and the limit protrusions and the limit grooves are identical in number and are rectangular.

7. The tractor brake as defined by claim 1 wherein the first and second friction plates each have the same structure and include a friction plate body, and facing plates having annular structures are provided on both end surfaces of the friction plate body.

8. The tractor brake of claim 7, wherein the friction plate body is provided with a friction plate center through hole;

9. The tractor brake of claim 8, wherein the friction plate central through hole is a splined hole.

10. The tractor brake of claim 7, wherein the liner is recessed with a waffle groove.