CN211140569U

CN211140569U - Power transmission device

Info

Publication number: CN211140569U
Application number: CN201922245704.6U
Authority: CN
Inventors: 孙明杰
Original assignee: Weifang Fengxu Agricultural Equipment Co ltd
Current assignee: Weifang Fengxu Agricultural Equipment Co ltd
Priority date: 2019-12-16
Filing date: 2019-12-16
Publication date: 2020-07-31
Anticipated expiration: 2029-12-16

Abstract

A power transmission device suitable for agricultural machinery comprises a first conveying mechanism, a second conveying mechanism and two ball type reversing mechanisms connected between the first conveying mechanism and the second conveying mechanism; first conveying mechanism is low back height form extension before being, and low back height form extension before second conveying mechanism is, and every ball formula reversing mechanism includes a back support sprocket drive shaft, a diversion ball and a diversion spherical cover body, and back support sprocket drive shaft upper end corresponds and is connected fixedly with first conveying mechanism, and back support sprocket drive shaft lower extreme is connected fixedly with the diversion ball, and diversion spherical cover body inboard forms a spherical cavity, and diversion ball holding is fixed in the spherical cavity of diversion spherical cover body, and diversion spherical cover body is connected with second conveying mechanism. The utility model discloses a ball formula reversing mechanism's structural design is compacter, has shortened the distance between first conveying mechanism and the second conveying mechanism greatly, and has realized the switching-over of power from first conveying mechanism to second conveying mechanism.

Description

Power transmission device

Technical Field

The utility model relates to a power transmission suitable for agricultural machine.

Background

The ginger harvester is a common agricultural machine, for example, after the ginger harvester loosens soil and cuts seedlings, the ginger and ginger leaves are transported to the rear part together, because the design of the power transmission device is unreasonable, the situation that the ginger is broken exists, the breaking rate of the ginger is improved, and the problem of the breaking rate of the ginger is a more important problem for farmers. The crushing rate is high, so that ginger farmers cannot sell the gingers at high price.

Disclosure of Invention

An object of the present invention is to provide a power transmission device for agricultural machinery, which solves the above problems.

In order to achieve the above purpose, the utility model adopts the technical scheme that: a power transmission device suitable for agricultural machinery comprises a first conveying mechanism, a second conveying mechanism and two ball type reversing mechanisms connected between the first conveying mechanism and the second conveying mechanism; the first conveying mechanism extends in a front-low and rear-high shape, the second conveying mechanism extends in a front-high and rear-low shape, each ball type reversing mechanism comprises a rear supporting chain wheel transmission shaft, a turning ball bearing shaft and a turning ball cover body, the turning ball is longitudinally provided with a first shaft hole, the turning ball is transversely provided with a second shaft hole, the upper end of the rear supporting chain wheel transmission shaft is correspondingly connected and fixed with the first conveying mechanism, the lower end of the rear supporting chain wheel transmission shaft penetrates through the first shaft hole of the turning ball, the turning ball bearing shaft penetrates through the second shaft hole of the turning ball and a fixing hole formed in the lower end of the rear supporting chain wheel transmission shaft, two third bearings are sleeved at the two ends of the turning ball bearing shaft, the turning ball cover body comprises a turning ball upper cover and a turning ball lower cover, the turning ball upper cover and the turning ball lower cover jointly form a spherical cavity and a clamping groove which is positioned at the periphery of the spherical cavity and communicated with the spherical cavity on the inner side, the turning ball is accommodated and fixed in a spherical cavity of the turning ball cover body, two end parts of the turning ball bearing shaft protruding out of the turning ball and third bearings sleeved at two ends of the turning ball bearing shaft are clamped in a clamping groove of the turning ball cover body, the first conveying mechanism comprises two groups of first conveying chain groups, each group of first conveying chain groups comprises a first supporting seat plate, a plurality of first conveying chain wheels and a main seedling clamping chain, the second conveying mechanism comprises two groups of second conveying chain groups, each group of second conveying chain groups comprises a second supporting seat plate, two second conveying chain wheels and an auxiliary seedling clamping chain, a through hole is formed at the front end of the second supporting seat plate, a shaft is embedded and fixed in the through hole at the front end of the second supporting seat plate, a second bearing is arranged in the bearing seat and sleeved at the periphery of the bottom of the turning ball lower cover, and when the rear supporting chain wheel transmission shaft rotates, the second bearing below the turning ball is used as a support, the third bearing on the turning ball stirs the turning ball cover body, so that the first conveying chain wheel, the turning ball cover body and the second conveying chain wheel at the front end of the second supporting seat plate are driven to rotate simultaneously, and the purpose of transmitting power is achieved.

The utility model discloses a power transmission's ball formula reversing mechanism's structural design is compacter, has shortened the distance between first conveying mechanism and the second conveying mechanism greatly, and has realized the switching-over of power from first conveying mechanism to second conveying mechanism, makes second conveying mechanism's position be unlikely to too low.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a schematic structural view of a power transmission device according to a preferred embodiment of the present invention;

FIG. 2 is an enlarged fragmentary view of the power transmission of FIG. 1;

FIG. 3 is an enlarged partial view of the ball reverser mechanism of FIG. 2;

FIG. 4 is a partial top view of the ball reverser mechanism of FIG. 3;

in the figure: 10. a frame; 20. a triangular frame; 30. an engine; 32. a power take-off shaft; 40. a gearbox; 41. a housing; 42. an input shaft; 43. a first transmission shaft; 44. a second transmission shaft; 45. a third transmission shaft; 46. a fourth transmission shaft; 47. a fifth transmission shaft; 48. a power take-off shaft; 56. a first conveyor chain set; 560. a first support base plate; 562. a first conveying sprocket; 564. a main seedling clamping chain; 58. a second conveyor chain set; 580. a second support base plate; 582. a second conveying sprocket; 584. a subsidiary seedling clamping chain; 585. a bearing seat; 586. a second bearing; 59. a ball type reversing mechanism; 590. a rear support sprocket drive shaft; 591. the rear support bearing seat; 592. a rear support seat plate; 593. a turning ball; 594. a direction-changing ball bearing shaft; 595. a third bearing; 596. a direction-changing ball upper cover; 5961. a cavity; 597. a direction-changing ball lower cover; 598. a first bearing; 599. a clamping groove; 61. a sixth transmission shaft; 62. an input shaft; 63. an output shaft; 64. bevel gear box.

Detailed Description

The invention will now be described in further detail with reference to the accompanying drawings, which are simplified schematic drawings and illustrate, by way of illustration only, the basic structure of the invention, and which therefore show only the constituents relevant to the invention.

As shown in fig. 1, 2 and 3, a power transmission device for agricultural machinery (e.g., a ginger harvester) according to a preferred embodiment of the present invention includes a transmission case 40, a first conveying mechanism, a second conveying mechanism, and two ball type reversing mechanisms 59. The two ball-type reversing mechanisms 59 are connected between the first conveying mechanism and the second conveying mechanism.

The gear box 40 is provided at the middle of the frame 10 at a position above the triangular frame 20 of the crawler traveling apparatus. The gearbox 40 includes a housing 41 fixedly connected to the frame 10, and an input shaft 42, a plurality of transmission shafts and a power output shaft 48 are disposed in the housing 41. The input shaft 42, the plurality of drive shafts and the power output shaft 48 are all provided with gears, and the shafts transmit power and movement through meshing of the gears. The plurality of transmission shafts comprise a first transmission shaft 43, a second transmission shaft 44, a third transmission shaft 45, a fourth transmission shaft 46 and a fifth transmission shaft 47 which are arranged in parallel.

The engine 30 is arranged at the front part of the frame 10, the power output shaft 32 of the engine 30 is connected with the input shaft 42 of the gearbox 40 through a belt, and the power output shaft 48 of the gearbox 40 is connected with the crawler belt walking device. When the engine 30 is running, the power is transmitted to the input shaft 42 of the gearbox 40 through the power output shaft 48, and the power is sequentially transmitted to the first transmission shaft 43, the second transmission shaft 44, the third transmission shaft 45, the fourth transmission shaft 46, the fifth transmission shaft 47 and the power output shaft 48 through the input shaft 42 of the gearbox 40 through gear meshing. The fourth transmission shaft 46 is a clutch plate type transmission shaft, and can finish the remote control adjustment turning of the agricultural machine through an external hydraulic system. The fifth transmission shaft 47 is of a clutch claw structure and can be separated and braked on one side, so that the agricultural machine can turn around and turn conveniently, and the power output shaft 48 outputs power to the triangular crawler travelling device to drive the crawler travelling device to travel.

The first conveying mechanism includes two first conveying chain groups 56 obliquely installed on the left and right sides of the frame 10, and the two first conveying chain groups 56 extend from the front of the frame 10 to the rear of the frame 10 in a front-low and rear-high manner. Each first conveying chain group 56 comprises a first supporting seat plate 560, a plurality of first conveying chain wheels 562 and a main seedling clamping chain 564.

The first support base plates 560 extend obliquely upward from the front to the rear of the frame 10, and the first support base plates 560 of the two first conveyor chain groups 56 are fixed side by side on the left and right sides of the frame 10. A plurality of first conveying sprockets 562 are rotatably coupled to the upper side of the first support plate 560 in the longitudinal direction. The main seedling clamping chain 564 is sleeved on the periphery of the first conveying chain wheels 562. The first conveying chain wheel 562 and the main seedling clamping chain 564 sleeved on the periphery of the first conveying chain wheel 562 are located on a first plane, and the first plane is gradually inclined and extends upwards from the front part of the rack 10 to the rear part of the rack 10 in a low-front and high-rear mode.

The second conveying mechanism includes two sets of second conveying chain groups 58 obliquely installed on the left and right sides of the frame 10, and the two sets of second conveying chain groups 58 are arranged on the rear portion of the frame 10 in a front-high and rear-low manner. Each second conveying chain group 58 comprises a second support seat plate 580, two second conveying chain wheels 582 and a pair of seedling clamping chains 584.

The second support seat plates 580 are disposed at the rear of the rack 10 in a front-high and rear-low manner, and the second support seat plates 580 of the two second conveying chain groups 58 are fixed side by side at the left and right sides of the rack 10. The second support saddle 580 is located below the first support saddle 560 and is inclined with respect to the first support saddle 560. The second support saddle 580 is rotatably connected to the two second conveying sprockets 582 in the longitudinal direction. One of the second conveyor sprockets 582 is disposed at a front end of the second support base plate 580, and the other second conveyor sprocket 582 is disposed at a rear end of the second support base plate 580. The auxiliary seedling clamping chain 584 is sleeved on the periphery of the two second conveying chain wheels 582 and extends in a front-high and rear-low manner. The second conveying chain wheel 582 and the auxiliary seedling clamping chain 584 sleeved on the periphery of the second conveying chain wheel 582 are positioned on a second plane. The second plane is located below the first plane and is inclined relative to the first plane. The first conveying chain wheel 562 of the first conveying mechanism located at the rear end of the first support seat plate 560 is fixedly connected with the second conveying chain wheel 582 arranged at the front end of the second support seat plate 580 through the ball type reversing mechanism 59. A through hole is formed at the front end of the second support seat plate 580, a bearing seat 585 is embedded and fixed in the through hole at the front end of the second support seat plate 580, and a second bearing 586 is disposed in the bearing seat 585.

Referring also to fig. 4, each ball reverser 59 includes a rear support sprocket drive shaft 590, a rear support bearing mount 591, a rear support seat plate 592, a direction changing ball 593, a direction changing ball bearing shaft 594, and a direction changing ball cover.

The rear shoe plate 592 is fixed to the upper surface of the first shoe plate 560 by welding. A first bearing 598 is disposed in the rear support bearing seat 591 and sleeved on the periphery of the rear support sprocket drive shaft 590, and the rear support bearing seat 591 is embedded and fixed in a through hole formed in the rear support seat plate 592.

The upper surface and the lower surface of the turning ball 593 are horizontal planes, and the outer surface of the turning ball 593 between the upper surface and the lower surface is a spherical surface. The turning ball 593 is provided with a first shaft hole along the longitudinal direction and a second shaft hole along the transverse direction.

The upper end of the rear support chain wheel transmission shaft 590 is correspondingly connected and fixed with a first conveying chain wheel 562 positioned above the rear support seat plate 592, and the lower end of the rear support chain wheel transmission shaft 590 penetrates through a first shaft hole of the turning ball 593 and is connected and fixed with the turning ball 593. Specifically, diversion sphere bearing axle 594 passes through the second shaft hole of diversion ball 593 and the fixed orifices of back support sprocket transmission 590 lower extreme, and both ends protrusion in the diversion ball 593 outside of diversion sphere bearing axle 594, and two third bearings 595 have been established to the cover on the both ends in diversion ball 593 outside of diversion sphere bearing axle 594 protrusion.

The direction-changing ball cover body comprises a direction-changing ball upper cover 596 and a direction-changing ball lower cover 597. The direction-changing ball upper cover 596 and the direction-changing ball lower cover 597 jointly form a spherical cavity 5961 and a clamping groove 599 which is located on the periphery of the spherical cavity 5961 and communicated with the spherical cavity 5961. The direction-changing ball 593 is accommodated in the spherical cavity 5961 of the direction-changing ball cover body. The two ends of the turning ball bearing shaft 594 protruding out of the turning ball 593 and the third bearings 595 sleeved at the two ends of the turning ball bearing shaft 594 are clamped in the clamping grooves 599 of the turning ball cover body.

A round mounting hole is formed in a second conveying chain wheel 582 arranged at the front end of the second support seat plate 580, the direction-changing ball upper cover 596 and the direction-changing ball lower cover 597 are embedded into the round mounting hole of the second conveying chain wheel 582 at the front end of the second support seat plate 580, and then the direction-changing ball upper cover 596 and the direction-changing ball lower cover 597 are fixed in the mounting hole in a combined mode through screws, so that the direction-changing ball cover body is fixedly connected with the second conveying chain wheel 582 at the front end of the second support seat plate 580. The second bearing 586 of setting in bearing frame 585 is located the diversion ball lower cover 597 bottom periphery.

When the rear supporting chain wheel transmission shaft 590 rotates, the second bearing 586 below the turning ball 593 serves as a support, the two third bearings 595 move in the clamping groove 599 of the turning ball cover body, the movement track of the two third bearings 595 is spherical, the turning ball cover body is shifted while the third bearings 595 move, the two third bearings 595 on the turning ball 593 play a role in transmitting power, so that the first conveying chain wheel 562, the turning ball 593, the turning ball cover body and the second conveying chain wheel 582 rotate together at the same time, and the purpose of transmitting power is achieved.

A transmission shaft six 61 and two bevel gear boxes 64 positioned at the left side and the right side are arranged at the rear part of the frame 10 close to the gearbox 40. Each bevel gear box 64 has an input shaft 62 and an output shaft 63. The output shaft 63 is coaxially connected and fixed with a rear supporting sprocket drive shaft 590 of the ball type reversing mechanism 59 correspondingly.

The second transmission shaft 44 of the gearbox 40 outputs power to the sixth transmission shaft 61 through a gear for reversing, then the power is transmitted to the input shaft 62 of the bevel gear box 64 through a chain, the power is transmitted to the output shafts 63 located at two sides of the rack 10 through the bevel gear box 64 for reversing, the output shafts 63 drive the rear supporting chain wheel transmission shaft 590, the first conveying chain wheel 562 and the main seedling clamping chain 564 to rotate, so that the obliquely improved main seedling clamping chain 564 reversely transmits the power backwards at the same speed as the machine.

With the forward start of the agricultural machine, the main seedling clamping chain 564 of the first conveying mechanism lifts the crop to be harvested (for example, ginger leaves of ginger) from the original place, the ginger leaves are clamped higher and higher in the rotation process of the main seedling clamping chain 564, in order to prevent the ginger from being broken when falling to the ground, the first conveying mechanism and the second conveying mechanism are connected through the ball type reversing mechanism 59, power is transmitted to the auxiliary seedling clamping chain 584 of the second conveying mechanism through the ball type reversing mechanism 59, and the main seedling clamping chain 564 of the first conveying mechanism clamps the ginger leaves and transports the ginger leaves backwards to the second conveying mechanism. Because the height of the auxiliary seedling clamping chain 584 is reduced in a slant manner in the rotating process, ginger leaves are clamped by the auxiliary seedling clamping chain 584 to slowly fall down, and then the ginger is slowly poured to one side of the ground, so that the crushing rate of the ginger is reduced.

The utility model discloses a power transmission's ball formula reversing mechanism 59's structural design is compacter, has shortened the distance between first conveying mechanism and the second conveying mechanism greatly, and has realized the switching-over of power from first conveying mechanism to second conveying mechanism, makes second conveying mechanism's vice seedling chain 584 that presss from both sides position be unlikely to too low, avoids vice seedling chain 584 to press from both sides ginger.

The above descriptions of the embodiments of the present invention that are not related to the present invention are well known in the art, and can be implemented by referring to the well-known technologies.

In light of the foregoing, it is to be understood that various changes and modifications may be made by those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. A power transmission device suitable for agricultural machinery, characterized in that: the device comprises a first conveying mechanism, a second conveying mechanism and two ball type reversing mechanisms connected between the first conveying mechanism and the second conveying mechanism; the first conveying mechanism extends in a front-low and rear-high shape, the second conveying mechanism extends in a front-high and rear-low shape, each ball type reversing mechanism comprises a rear supporting chain wheel transmission shaft, a turning ball bearing shaft and a turning ball cover body, the turning ball is longitudinally provided with a first shaft hole, the turning ball is transversely provided with a second shaft hole, the upper end of the rear supporting chain wheel transmission shaft is correspondingly connected and fixed with the first conveying mechanism, the lower end of the rear supporting chain wheel transmission shaft penetrates through the first shaft hole of the turning ball, the turning ball bearing shaft penetrates through the second shaft hole of the turning ball and a fixing hole formed in the lower end of the rear supporting chain wheel transmission shaft, two third bearings are sleeved at the two ends of the turning ball bearing shaft, the turning ball cover body comprises a turning ball upper cover and a turning ball lower cover, the turning ball upper cover and the turning ball lower cover jointly form a spherical cavity and a clamping groove which is positioned at the periphery of the spherical cavity and communicated with the spherical cavity on the inner side, the turning ball is accommodated and fixed in a spherical cavity of the turning ball cover body, two end parts of a turning ball bearing shaft protruding out of the turning ball and third bearings sleeved at two ends of the turning ball bearing shaft are clamped in clamping grooves of the turning ball cover body, the first conveying mechanism comprises two groups of first conveying chain groups, each group of first conveying chain groups comprises a first supporting seat plate, a plurality of first conveying chain wheels and a main seedling clamping chain, the second conveying mechanism comprises two groups of second conveying chain groups, each group of second conveying chain groups comprises a second supporting seat plate, two second conveying chain wheels and an auxiliary seedling clamping chain, a through hole is formed in the front end of the second supporting seat plate, a bearing seat is embedded and fixed in the through hole in the front end of the second supporting seat plate, and a second bearing is arranged in the bearing seat and sleeved at the periphery of the bottom of the turning ball lower cover; when the rear supporting chain wheel transmission shaft rotates, the second bearing below the turning ball serves as a support, the two third bearings move in the clamping groove of the turning ball cover body, the movement track of the third bearings is spherical, the turning ball cover body is shifted when the third bearings move, and the power is transmitted through the two third bearings on the turning ball, so that the first conveying chain wheel, the turning ball cover body and the second conveying chain wheel rotate simultaneously, and the purpose of transmitting power is achieved.

2. The power transmission device according to claim 1, wherein: first support plate rotates along length direction and connects a plurality of first conveying sprocket, this a plurality of first conveying sprocket periphery is located to main seedling chain cover, and first conveying sprocket and cover are established and are extended in the high form of low back in front that first conveying sprocket outlying main seedling chain that presss from both sides.

3. The power transmission device according to claim 2, wherein: the second supports the bedplate and rotates along length direction and connects two second conveying sprocket, and one of them second conveying sprocket sets up in second support bedplate front end, and another second conveying sprocket sets up in second support bedplate rear end, vice double-layered seedling chain cover is located two second conveying sprocket peripheries and is high back low form extension before.

4. The power transmission device according to claim 3, characterized in that: each ball type reversing mechanism further comprises a rear supporting seat plate, a rear supporting bearing seat and a first bearing, the rear supporting seat plate is fixed on the upper surface of the first supporting seat plate through welding, the rear supporting bearing seat is embedded into and fixed in a through hole formed in the rear supporting seat plate, and the first bearing is arranged in the rear supporting bearing seat and sleeved on the periphery of a rear supporting chain wheel transmission shaft.

5. The power transmission device according to claim 4, wherein: the upper end of the rear supporting chain wheel transmission shaft is correspondingly connected and fixed with a first conveying chain wheel positioned above the rear supporting base plate.

6. The power transmission device according to claim 5, wherein: a round mounting hole is formed in a second conveying chain wheel arranged above the front end of the second supporting seat plate, the turning ball upper cover and the turning ball lower cover are embedded into the round mounting hole of the second conveying chain wheel at the front end of the second supporting seat plate, and the turning ball upper cover and the turning ball lower cover are fixed in the mounting hole in a combined mode through screws.

7. The power transmission device according to claim 1, wherein: the upper surface and the lower surface of the turning ball are horizontal planes, and the outer surface of the turning ball between the upper surface and the lower surface is a spherical surface.