CN112690097A

CN112690097A - Harvester vibrating screen drive

Info

Publication number: CN112690097A
Application number: CN202011616050.4A
Authority: CN
Inventors: 王军; 邢立成; 邹杨昊
Original assignee: Jiangsu World Agricultural Machinery Co Ltd
Current assignee: Jiangsu World Agricultural Machinery Co Ltd
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2021-04-23
Also published as: WO2022141993A1

Abstract

The invention provides a harvester vibrating screen drive which comprises two bearing seats, a transmission shaft, two eccentric bearings and a drive wheel. Two bearing blocks are respectively and correspondingly fixed on the side wall surfaces of two symmetrical supporting beams at the tail end of the machine frame, an outer spherical surface bearing is installed in any one bearing block, and two ends of the transmission shaft are respectively fixed in the outer spherical surface bearings. Two eccentric bearings are fixed at two ends of the transmission shaft respectively in a mirror image mode, one end of the vibrating screen is fixed on the two eccentric bearings, the other end of the vibrating screen is arranged on the rack through a reciprocating guide structure, and the driving wheel is fixed at one end of the transmission shaft and is suitable for being driven by a driver of the harvester and driving the transmission shaft to rotate. The bearing seat is directly fixed on the support beam of the frame, transition connection is avoided, and the frame directly bears the gravity of the vibrating screen and the inertia acting force of the reciprocating motion of the vibrating screen, so that the vibrating screen is more stable in vibration.

Description

Harvester vibrating screen drive

Technical Field

The invention relates to the technical field of driving devices, in particular to a harvester vibrating screen drive.

Background

In the prior art, a vibrating screen of a combine harvester is arranged below a roller and used for screening crop seeds, a vibrating screen driving bearing seat is arranged on a mounting seat of a vibrating screen driving device, the mounting seat is a bending plate, the bending plate is fixed on left and right side walls of the tail of a harvester rack in a welding mode, a mounting surface for mounting the bearing seat is arranged on the bending plate, a connecting hole is punched in the mounting surface, the bearing seat corresponds to the connecting hole, and the connecting hole is fixed on the bending plate through fasteners such as bolts.

The frame exists the deformation after full welding to there is the error in the depth of parallelism between the board of bending about leading to, further can influence the concentricity of both sides bearing frame installation. Meanwhile, the bearing seat is fixed on the bending plate firstly, then the bending plate is fixed on the frame, the vibrating screen does reciprocating motion ceaselessly in the operation process, the vibrating screen works at a high rotating speed and a large feeding amount for a long time, only the bending plate is used for supporting the vibrating screen which vibrates in a reciprocating mode, and the vibrating screen is poor in stability and has potential safety hazards.

Disclosure of Invention

Therefore, the technical problem to be solved by the invention is to overcome the defects of poor stability and potential safety hazard of a vibrating screen driving structure in the prior art.

To this end, the present invention provides a harvester shaker drive comprising:

the two bearing blocks are respectively and correspondingly fixed on the side wall surfaces of the two supporting beams which are symmetrical at the tail end of the rack and are vertically arranged; an outer spherical bearing is arranged in any bearing seat;

the two ends of the transmission shaft are respectively fixed in the spherical outside surface bearings;

the two eccentric bearings are fixed at the two ends of the transmission shaft respectively in a mirror image manner;

one end of the vibrating screen is fixed on the two eccentric bearings, and the other end of the vibrating screen is arranged on the rack through a reciprocating guide structure;

and the driving wheel is fixed at one end of the transmission shaft and is suitable for being driven by a driver of the harvester and driving the transmission shaft to rotate.

The reciprocating guide structure includes:

the two track bearings are symmetrically arranged on two sides of the vibrating screen and are far away from one end of the transmission shaft;

the two vibrating tracks are symmetrically arranged on the machine frames on the two sides of the vibrating screen; the guide direction of the vibration track and the horizontal plane form an included angle; the track bearings are arranged in the vibration track in a one-to-one correspondence mode and can slide.

The vibrating screen further comprises a linkage piece for connecting the vibrating screen and the eccentric bearing.

The linkage includes:

the ring sleeve is sleeved and fixed on the eccentric bearing;

and one end of the linkage plate is fixed on the change sleeve, and the other end of the linkage plate is fixed on the vibrating screen.

One end of the ring sleeve is provided with an opening and a flanging; the flanging is perpendicular to the wall surface of the ring sleeve.

The protection plate is fixed on the support beam on one side of the driving wheel; the plate surface of the protection plate extends along the radial direction of the transmission shaft;

the area of the guard plate is larger than the cross-sectional area of the drive wheel.

The protection plate is arranged on the bearing seat in a spanning mode and is arranged in a clearance mode with the bearing seat.

Further comprising:

and one of the two balancing weights is arranged on the driving wheel, and the other balancing weight is arranged at one end of the transmission shaft, which is far away from the driving wheel.

The balancing weights at the two ends of the transmission shaft are arranged asymmetrically.

And belt transmission is adopted between the driving wheel and the driver.

The technical scheme of the invention has the following advantages:

1. the invention provides a harvester vibrating screen drive which comprises two bearing seats, a transmission shaft, two eccentric bearings and a drive wheel. Two bearing blocks are respectively and correspondingly fixed on the side wall surfaces of two symmetrical supporting beams at the tail end of the machine frame, an outer spherical surface bearing is installed in any one bearing block, and two ends of the transmission shaft are respectively fixed in the outer spherical surface bearings. Two eccentric bearings are fixed at two ends of the transmission shaft respectively in a mirror image mode, one end of the vibrating screen is fixed on the two eccentric bearings, the other end of the vibrating screen is arranged on the rack through a reciprocating guide structure, and the driving wheel is fixed at one end of the transmission shaft and is suitable for being driven by a driver of the harvester and driving the transmission shaft to rotate. The bearing seat is directly fixed on the support beam of the frame, transition connection is avoided, and the frame directly bears the gravity of the vibrating screen and the inertia acting force of the reciprocating motion of the vibrating screen, so that the vibrating screen is more stable in vibration.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a first schematic structural view of a shaker drive according to an embodiment of the present disclosure;

FIG. 2 is a schematic structural diagram of a vibrating screen drive according to an embodiment of the present invention;

FIG. 3 is a schematic diagram of a track bearing on a shaker screen in an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a vibration guide rail according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a linkage member according to an embodiment of the present invention.

Description of reference numerals:

H. vibrating screen; 12b, a support beam; 2g, bearing seats; 3g, a transmission shaft; 4g, an eccentric bearing; 5g, driving wheels; 61g, a track bearing; 62g, a vibration track; 7g, a linkage; 71g, sleeving a ring; 72g, a linkage plate; 8g, a balancing weight; 9g and a protection plate.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

Example 1

The embodiment provides a harvester vibrating screen drive, as shown in fig. 1, which comprises two bearing seats 2g, a transmission shaft 3g, two eccentric bearings 4g and a drive wheel 5 g. The frame of harvester comprises a plurality of supporting beams 12b and the assembly beam of erectting between supporting beam 12b of vertical setting, installs the frame casing between the adjacent roof beam, forms the installation cavity in the casing, and shale shaker H installs in this installation cavity.

As shown in fig. 1, two bearing seats 2g are respectively fixed on the side wall surfaces of two symmetrical support beams 12b at the tail end of the machine frame, an outer spherical bearing is installed in any one bearing seat 2g, and two ends of the transmission shaft 3g are respectively fixed in the outer spherical bearing. Two eccentric bearings 4g are fixed respectively at transmission shaft 3g both ends for the mirror image, and shale shaker H one end is fixed on two eccentric bearings 4g, and the other end sets up in the frame through reciprocal guide structure, and drive wheel 5g is fixed in the one end of transmission shaft 3g, is suitable for the driver drive that receives the harvester and drives transmission shaft 3g and rotate. The bearing seat 2g is directly fixed on the support beam 12b of the frame, transition connection is avoided, and the frame directly bears the gravity of the vibrating screen H and the inertia acting force of the reciprocating motion of the vibrating screen H, so that the vibrating screen H is more stable in vibration.

The reciprocating guide structure comprises two track bearings 61g and a vibration track 62g corresponding to the two track bearings 61g, as shown in fig. 3, the track bearings 61g are symmetrically fixed at two sides of the vibration sieve H and far away from one end of the transmission shaft 3g, the two vibration tracks 62g are symmetrically arranged on the machine frame at two sides of the vibration sieve H, as shown in fig. 4, the vibration track 62g is composed of a bottom plate and side plates oppositely arranged on the bottom plate, a guide channel is formed between the two side plates, the guide direction of the vibration track 62g forms an included angle with the horizontal plane, the track bearings 61g are arranged in the vibration track 62g in a sliding manner,

a linkage piece 7g is arranged between the vibrating screen H and the eccentric bearing 4g, as shown in fig. 5, the linkage piece 7g comprises a ring sleeve 71g and a linkage plate 72g fixed on the ring sleeve 71g in a welding mode, one end of the ring sleeve 71g is provided with a flanging, the flanging is perpendicular to the wall surface of the ring sleeve 71g, and the ring sleeve 71g is sleeved and fixed on the eccentric bearing 4 g. The other end of the linkage plate 72g is fixed on a side screen body of the vibrating screen H.

As shown in fig. 1 or fig. 2, the protection plate 9g is fixed on the support beam 12b close to the driving wheel 5g, and the surface of the protection plate 9g extends along the radial direction of the transmission shaft 3g, in this embodiment, the protection plate 9g spans the bearing seat 2g and is arranged with a gap from the bearing seat 2 g. The area of the protection plate 9g is larger than the cross-sectional area of the driving wheel 5g, so that sundries such as crop straws screened out from the tail of the vibrating screen H are fully shielded, and the sundries are prevented from entering a driving area on one side of the rack to cause winding or blocking and influence on the normal operation of the machine.

As shown in fig. 1 or fig. 2 again, detachable installation balancing weight 8g on the drive wheel 5g, the one end of keeping away from the transmission shaft 3g of guard plate 9g sets up balancing weight 8g equally, piece detachably of joining in marriage fixes on the connecting block, the connecting block is fixed on transmission shaft 3g, the piece of joining in marriage of 3g both ends of transmission shaft is asymmetric setting, rotate and drive shale shaker H reciprocating motion's in-process at transmission shaft 3g, balancing weight 8g through asymmetric setting, avoid shale shaker H reciprocating vibration too violent, guarantee the equilibrium of shale shaker H whole vibration.

In this embodiment, the drive of the harvester and the drive wheel 5g of the vibrating screen H are in belt transmission, which may be direct belt transmission or indirect belt transmission, as the case may be. It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.

Claims

1. A harvester shaker drive, comprising:

the two bearing blocks (2g) are respectively and correspondingly fixed on the side wall surfaces of the two supporting beams (12b) which are symmetrical at the tail end of the frame and are vertically arranged; an outer spherical bearing is arranged in any one bearing seat (2 g);

a transmission shaft (3g) with both ends fixed in the spherical outside bearing respectively;

two eccentric bearings (4g) which are fixed at two ends of the transmission shaft (3g) in a mirror image manner;

one end of a vibrating screen (H) is fixed on the two eccentric bearings (4g), and the other end of the vibrating screen (H) is arranged on the rack through a reciprocating guide structure;

and the driving wheel (5g) is fixed at one end of the transmission shaft (3g) and is suitable for being driven by a driver of the harvester and driving the transmission shaft (3g) to rotate.

2. The harvester shaker drive of claim 1, wherein the reciprocating guide structure comprises:

the two track bearings (61g) are symmetrically arranged on two sides of the vibrating screen (H) and are far away from one end of the transmission shaft (3 g);

the two vibrating rails (62g) are symmetrically arranged on the machine frame on two sides of the vibrating screen (H); the guide direction of the vibration track (62g) forms an included angle with the horizontal plane; the rail bearings (61g) are arranged in the vibration rail (62g) in a one-to-one correspondence and in a sliding manner.

3. The harvester shaker drive as claimed in claim 1, further comprising a linkage (7g) connecting the shaker (H) and the eccentric bearing (4 g).

4. A harvester shaker drive as claimed in claim 3, characterized in that the linkage (7g) comprises:

the ring sleeve (71g) is sleeved and fixed on the eccentric bearing (4 g);

and one end of the linkage plate (72g) is fixed on the replacing sleeve, and the other end of the linkage plate is fixed on the vibrating screen (H).

5. The harvester shaker drive as claimed in claim 4, wherein the collar (71g) is flanged open at one end; the flanging is perpendicular to the wall surface of the ring sleeve (71 g).

6. The harvester shaker drive as claimed in claim 1, further comprising a guard plate (9g) fixed to the support beam (12b) on one side of the drive wheel (5 g); the plate surface of the protection plate (9g) extends along the radial direction of the transmission shaft (3 g);

the area of the protection plate (9g) is larger than the cross-sectional area of the driving wheel (5 g).

7. The harvester shaker drive as claimed in claim 6, characterized in that the protective plate (9g) spans the bearing seat (2g) and is arranged at a clearance from the bearing seat (2 g).

8. The harvester shaker drive as in any one of claims 1-7, further comprising:

and the balancing weight blocks (8g) are arranged on the driving wheel (5g) and the other balancing weight block is arranged at one end of the transmission shaft (3g) far away from the driving wheel (5 g).

9. The harvester shaker drive as claimed in claim 8, wherein the counterweights (8g) at both ends of the drive shaft (3g) are asymmetrically arranged.

10. A harvester shaker drive as claimed in claim 1, characterised in that a belt drive is used between the drive wheel (5g) and the drive.