CN214126089U

CN214126089U - Stepless speed change device for bract crusher of corn harvester

Info

Publication number: CN214126089U
Application number: CN202023226176.9U
Authority: CN
Inventors: 许元德
Original assignee: Yishui Xingda Machinery Co ltd
Current assignee: Yishui Xingda Machinery Co ltd
Priority date: 2020-12-28
Filing date: 2020-12-28
Publication date: 2021-09-07
Anticipated expiration: 2030-12-28

Abstract

The utility model belongs to the technical field of continuously variable transmission, especially, maize picker bract grinder continuously variable transmission now proposes following scheme, including the continuously variable main part, one side of continuously variable main part is provided with two sets of belt pulleys, and is two sets of the inner wall sliding connection of belt pulley has the annular slab, the outer wall fixed mounting of annular slab has the lug, and is two sets of the equal sliding connection in one side that the belt pulley is relative has the gyro wheel of being connected with the annular slab rotation. The utility model discloses a set up annular plate, lug, gyro wheel, plate core, connecting plate and fixed plate, electric putter contracts, and electric putter then can reverse drive the fixed plate and slide in the plate core is inside, and when the fixed plate was gliding, can utilize the connecting plate to promote the annular plate and outwards enlarge, prop up the belt until the annular plate and can fix the belt, and this operation can make infinitely variable device adapt to different belt length to prop up it.

Description

Stepless speed change device for bract crusher of corn harvester

Technical Field

The utility model relates to a infinitely variable device technical field especially relates to a maize picker bract grinder infinitely variable device.

Background

The stepless speed change device adopts the transmission belt to be matched with the driving wheel and the driven wheel with variable working diameters to transmit power, so that the continuous change of the transmission ratio can be realized, and the optimal matching of a transmission system and the working condition of an engine is obtained.

However, when the existing stepless speed change device is used on the corn harvester bract crusher, the belt with different lengths cannot be adapted by changing the diameter of the belt pulley, and meanwhile, the belt cannot be easily installed on the belt pulley for transmission, and when impurities of bracts often fall onto the belt during crushing, the belt in transmission can be influenced to a certain extent, so that the stepless speed change device for the corn harvester bract crusher is needed.

SUMMERY OF THE UTILITY MODEL

The utility model provides a pair of maize picker bract grinder infinitely variable device has solved and has had the diameter size that can change the belt pulley among the prior art, adapts to the belt of different length, and when the impurity that can not install the belt easily and carry out transmission and bract on the belt pulley often drops the belt simultaneously, can lead to the fact the problem of certain influence at driven belt well.

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

a stepless speed change device of a bract crusher of a corn harvester comprises a stepless speed change main body, wherein one side of the stepless speed change main body is provided with two groups of belt pulleys, the inner walls of the two groups of belt pulleys are connected with an annular plate in a sliding way, the outer wall of the annular plate is fixedly provided with a convex block, one side of the two groups of belt pulleys opposite to each other is connected with a roller which is rotationally connected with the annular plate in a sliding way, a disc core is fixedly connected between the two groups of belt pulleys, the inner part of the disc core is connected with an electric push rod which penetrates through the inner wall of one group of belt pulleys in a sliding way, the outer wall of the electric push rod is positioned at the inner side of the disc core and is fixedly connected with a fixed plate, a connecting plate is rotationally connected between the fixed plate and the annular plate, the upper side and the lower side of one end of each belt pulley are fixedly provided with a first connecting shaft, the outer wall of the first connecting shaft is rotationally connected with a first clamping plate and a second clamping plate respectively, and the inner wall of one side of the first clamping plate opposite to the first clamping plate is provided with an elastic hairbrush plate, and the first cardboard and the second cardboard keep away from the equal fixed mounting in one side of first connecting axle have the second connecting axle, the one end block of second connecting axle has the limiting plate, and the limiting plate keeps away from the equal fixedly connected with spring of inner wall that the one end of second connecting axle is located the belt pulley.

Preferably, the annular plates are provided in four groups, and the four groups of annular plates are equiangularly distributed on the inner side of the pulley about the center point of the disc core.

Preferably, four groups of disc cores are arranged, and the inner wall profiles of the four groups of disc cores are all matched with the outer wall profile of one end of the electric push rod.

Preferably, the connecting plate is rotatably connected with the fixing plate through a rotating shaft, and the connecting plate is rotatably connected with the annular plate through a rotating shaft.

Preferably, the central point of the second clamping plate and the central point of the first clamping plate are on the same vertical straight line, and the second clamping plate and the first clamping plate form a hinge structure through a first connecting shaft.

Preferably, the limiting plates are of a bow-shaped structure, and the inner walls of the upper ends of the limiting plates and the inner walls of the lower ends of the limiting plates are matched with the outer walls of the two groups of second connecting shafts.

Preferably, a plurality of bumps are distributed on the surface of the bump at equal intervals, and the bumps and the annular plate are of an integrated structure.

In the utility model, the water-saving device is provided with a water-saving valve,

1. by arranging the annular plate, the convex block, the roller, the disc core, the connecting plate and the fixing plate, the electric push rod is contracted, the electric push rod can reversely drive the fixing plate to slide in the disc core, the connecting plate can be used for pushing the annular plate to expand outwards while the fixing plate slides, and the belt can be fixed until the belt is supported by the annular plate;

2. the first clamping plate, the second clamping plate, the elastic brush plate and the second connecting shaft are arranged; and the impurity that the bract dropped then can erase through the elasticity brush board on first cardboard and the second cardboard, prevents that great bract impurity from being driven by the belt and blocking to the belt pulley in, causes the influence to the transmission of belt.

Drawings

FIG. 1 is a front view of a stepless speed change device of a bract crusher of a corn harvester;

FIG. 2 is a schematic structural view of the inside of a belt pulley of a stepless speed change device of a bract crusher of a corn harvester;

FIG. 3 is a schematic side view of the cross-sectional structure of a belt pulley of the stepless speed change device of the bract crusher of the corn harvester;

FIG. 4 is an enlarged view of the position A in FIG. 2 of the stepless speed change device of the bract crusher of the corn harvester of the present invention;

FIG. 5 is an enlarged view of the position B in FIG. 1 of the stepless speed change device of the bract crusher of the corn harvester of the present invention;

fig. 6 is the utility model provides a first cardboard of maize picker bract grinder infinitely variable speed device picture and second cardboard structure sketch.

In the figure: 1. a stepless speed change main body; 2. a belt pulley; 3. an annular plate; 4. a bump; 5. a roller; 6. a disc core; 7. a connecting plate; 8. a fixing plate; 9. an electric push rod; 10. a first connecting shaft; 11. a first clamping plate; 12. a second clamping plate; 13. an elastic brush plate; 14. a second connecting shaft; 15. a limiting plate; 16. a spring.

Detailed Description

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

Referring to fig. 1-6, a stepless speed change device for a bract crusher of a corn harvester comprises a stepless speed change main body 1, wherein two groups of belt pulleys 2 are arranged on one side of the stepless speed change main body 1, annular plates 3 are slidably connected to the inner walls of the two groups of belt pulleys 2, the annular plates 3 are arranged in four groups, the four groups of annular plates 3 are distributed on the inner sides of the belt pulleys 2 at equal angles relative to the central point of a disc core 6, the annular plates 3 are outwards expanded and can support the belt to fix the belt, bumps 4 are fixedly arranged on the outer wall of the annular plates 3, a plurality of bumps 4 are uniformly distributed on the surfaces of the bumps 4 at equal intervals, the bumps 4 and the annular plates 3 are of an integral structure, the friction force between the bumps 4 and the belt can be increased, rollers 5 rotatably connected with the annular plates 3 are slidably connected on the opposite sides of the two groups of belt pulleys 2, and the disc core 6 is fixedly connected between the two groups of belt pulleys 2, the disc core 6 is provided with four groups, the inner wall profiles of the four groups of disc cores 6 are matched with the outer wall profile of one end of an electric push rod 9, so that the electric push rod 9 can conveniently drive a fixed plate 8 to slide in the disc core 6, the inner part of the disc core 6 is connected with the electric push rod 9 penetrating through the inner wall of a group of belt pulleys 2 in a sliding manner, the outer wall of the electric push rod 9 is positioned at the inner side of the disc core 6 and is fixedly connected with the fixed plate 8, a connecting plate 7 is connected between the fixed plate 8 and the annular plate 3 in a rotating manner, the connecting plate 7 is connected with the fixed plate 8 in a rotating manner, the connecting plate 7 is connected with the annular plate 3 in a rotating manner, so that the annular plate 3 can conveniently perform centripetal movement, a first connecting shaft 10 is fixedly arranged on the upper side and the lower side of one end of the belt pulley 2, the outer wall of the first connecting shaft 10 is respectively connected with a first clamping plate 11 and a second clamping plate 12 in a rotating manner, and an elastic hairbrush plate 13 is arranged on the inner wall of one side, which is opposite to the first clamping plate 11, and the sides of the first clamping plate 11 and the second clamping plate 12 far away from the first connecting shaft 10 are both fixedly provided with a second connecting shaft 14, the central point of the second clamping plate 12 and the central point of the first clamping plate 11 are on the same vertical straight line, and the second clamping plate 12 and the first clamping plate 11 form a hinge structure through the first connecting shaft 10, the second connecting shaft 14 arranged on the first clamping plate 11 and the second clamping plate 12 is clamped by a corresponding clamping groove on a limiting plate 15, one end of the second connecting shaft 14 is clamped with a limiting plate 15, and one end of the limiting plate 15 far away from the second connecting shaft 14 is positioned on the inner wall of the belt pulley 2 and is fixedly connected with a spring 16, the limiting plate 15 is in a bow-shaped structure, the inner wall of the upper end of the limiting plate 15 and the inner wall of the lower end of the limiting plate 15 are both matched with the outer walls of the two groups of second connecting shafts 14, the limiting plate 15 is loosened, and, so that the second connecting shafts 14 provided on the first card 11 and the second card 12 are caught by the corresponding catching grooves of the catching plate 15.

The working principle is as follows: when the belt pulley is used, firstly, the electric push rod 9 is started to push the fixed plate 8 to slide on the inner wall of the disc core 6, when the fixed plate 8 slides, one end of the connecting plate 7 connected with the fixed plate 8 is driven to move in the same direction, so that the electric push rod 9 drives the fixed plate 8 to move in the direction away from the stepless speed change main body 1, at the moment, the connecting plate 7 can pull the annular plate 3 towards the inner side of the belt pulley 2, when the annular plate 3 does centripetal movement, the roller 5 can slide on the inner wall of the belt pulley 2, so that the annular plate 3 does centripetal movement, the diameter among the four groups of annular plates 3 is reduced, at the moment, a belt to be used can be sleeved on the outer wall of the annular plate 3, at the moment, the electric push rod 9 can be started to contract, the electric push rod 9 can reversely drive the fixed plate 8 to slide in the disc core 6, when the fixed plate 8 slides, the connecting plate 7 can be used for pushing the annular plate 3 to expand outwards, the belt can be fixed until the annular plate 3 props up the belt, the operation can enable the stepless speed change device to adapt to different belt lengths and prop up the belt, when the bracts need to be crushed, the limiting plate 15 can be pressed into the inside of the belt pulley 2 through the spring 16, the first clamping plate 11 and the second clamping plate 12 can be rotated clockwise and anticlockwise respectively at the same time until the first clamping plate 11 and the second clamping plate 12 form a U shape, the limiting plate 15 can be loosened at the moment, the limiting plate 15 can be popped out from the inside of the belt pulley 2 through the spring 16, so that the second connecting shafts 14 arranged on the first clamping plate 11 and the second clamping plate 12 can be clamped through corresponding clamping grooves on the limiting plate 15, the stepless speed change device on the bracts can be started to crush the bracts, when the bracts are crushed for a long time, impurities falling from the bracts can be erased through the elastic hairbrush plates 13 on the first clamping plate 11 and the second clamping plate 12, prevent the larger bract impurity from being driven by the belt to be clamped in the belt pulley 2 and influencing the transmission of the belt.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a maize picker bract grinder infinitely variable speed device, includes infinitely variable main part (1), its characterized in that: one side of the stepless speed change main body (1) is provided with two groups of belt pulleys (2), the inner walls of the two groups of belt pulleys (2) are connected with a ring-shaped plate (3) in a sliding manner, a convex block (4) is fixedly arranged on the outer wall of the ring-shaped plate (3), one side, opposite to the two groups of belt pulleys (2), is connected with a roller (5) rotatably connected with the ring-shaped plate (3) in a sliding manner, a disc core (6) is fixedly connected between the two groups of belt pulleys (2), an electric push rod (9) penetrating through the inner wall of one group of belt pulleys (2) is connected with the inner side of the disc core (6) in a sliding manner, a fixing plate (8) is fixedly connected with the outer wall of the electric push rod (9) on the inner side of the disc core (6), a connecting plate (7) is connected between the fixing plate (8) and the ring-shaped plate (3) in a rotating manner, a first connecting shaft (10) is fixedly arranged on the upside and the lower side of one end of the belt pulley (2), and the outer wall of first connecting axle (10) rotates respectively and is connected with first cardboard (11) and second cardboard (12), elasticity brush board (13) are all installed to one side inner wall that first cardboard (11) are relative with second cardboard (12), and the equal fixed mounting in one side that first connecting axle (10) were kept away from to first cardboard (11) and second cardboard (12) has second connecting axle (14), the one end block of second connecting axle (14) has limiting plate (15), and the equal fixedly connected with spring (16) of inner wall that the one end that second connecting axle (14) were kept away from to limiting plate (15) is located belt pulley (2).

2. The corn harvester bract crusher stepless speed change device of claim 1, characterized in that: the annular plates (3) are provided with four groups, and the four groups of annular plates (3) are distributed on the inner side of the belt pulley (2) at equal angles relative to the center point of the disc core (6).

3. The corn harvester bract crusher stepless speed change device of claim 1, characterized in that: the disc cores (6) are provided with four groups, and the inner wall profiles of the four groups of disc cores (6) are all matched with the outer wall profile of one end of the electric push rod (9).

4. The corn harvester bract crusher stepless speed change device of claim 1, characterized in that: the connecting plate (7) is rotatably connected with the fixed plate (8) through a rotating shaft, and the connecting plate (7) is rotatably connected with the annular plate (3) through the rotating shaft.

5. The corn harvester bract crusher stepless speed change device of claim 1, characterized in that: the central point of the second clamping plate (12) and the central point of the first clamping plate (11) are on the same vertical straight line, and the second clamping plate (12) and the first clamping plate (11) form a hinge structure through a first connecting shaft (10).

6. The corn harvester bract crusher stepless speed change device of claim 1, characterized in that: the limiting plates (15) are of a bow-shaped structure, and the inner walls of the upper ends of the limiting plates (15) and the inner walls of the lower ends of the limiting plates (15) are matched with the outer walls of the two groups of second connecting shafts (14).

7. The corn harvester bract crusher stepless speed change device of claim 1, characterized in that: a plurality of lugs (4) are distributed on the surface of each lug (4) at equal intervals, and the lugs (4) and the annular plate (3) are of an integrated structure.