CN216279088U

CN216279088U - Ratchet type one-way clutch of semi-feeding combine harvester

Info

Publication number: CN216279088U
Application number: CN202122840627.6U
Authority: CN
Inventors: 李祥道; 任伟; 周祈宇
Original assignee: Shandong Weicheng Mechanical Equipment Co ltd
Current assignee: Shandong Weicheng Mechanical Equipment Co ltd
Priority date: 2021-11-19
Filing date: 2021-11-19
Publication date: 2022-04-12
Anticipated expiration: 2031-11-19

Abstract

The utility model discloses a ratchet type one-way clutch of a semi-feeding combine harvester, which comprises a pawl seat sleeve, wherein an inner ring is fixedly connected to the central axis of the inner wall of the pawl seat sleeve, a ratchet wheel is arranged inside the inner ring and matched with the inner ring, a fixed lantern ring is arranged on one side of the outer wall of the inner ring, and the fixed lantern ring is matched with the pawl seat sleeve. According to the utility model, when the pawl on the outer wall of the ratchet wheel rotates along the idle rotation direction, the ratchet wheel drives the plurality of ratchet teeth to rotate, in the process, the pawl does not impact the ratchet teeth, and meanwhile, through the arrangement of the extension spring, the ratchet teeth extrude the pawl when the ratchet teeth rotate, so that the phenomenon that impact is not generated between the pawl and the ratchet teeth in the pushing and combining process is avoided, the whole process is stable and smooth, and meanwhile, the phenomenon that friction is generated between the ratchet teeth and the pawl when the ratchet teeth move is avoided, thus the service life of the clutch is prolonged, the ratchet wheel structure is more compact, the size of the pawl seat sleeve can be effectively reduced, and the clutch has better adaptability.

Description

Ratchet type one-way clutch of semi-feeding combine harvester

Technical Field

The utility model relates to the technical field of one-way clutches, in particular to a ratchet wheel type one-way clutch of a semi-feeding combine harvester.

Background

The ratchet clutch is one kind of one-way clutch and includes two kinds, outer meshing ratchet clutch and inner meshing ratchet clutch. Most ratchet wheel clutches realize the function of transmitting torque in one rotating direction and idling in the other direction through a mechanism consisting of a ratchet wheel and a plurality of pawls, when the one-way clutch rotates in the idling direction, the pawls impact the surface of the ratchet wheel under the action of an elastic element after sliding over the tail ends of the top surfaces of ratchet wheel teeth and make a sound, the abrasion between the pawls and the ratchet wheel can be increased in the process, the service life of the elastic element is shortened, and the pawls can be prevented from impacting the surface of the ratchet wheel when the one-way clutch rotates in the idling direction by adopting a double-ratchet wheel mode.

The existing ratchet wheel type one-way clutch has a simple structure, when the clutch rotates along an idling direction, the transmitted torsion is large, a pawl impacts the surface of an active ratchet wheel under the action of a pressure providing element after sliding over the tail end of the tooth top of the active ratchet wheel, and makes a sound, and when the clutch idles, a part of power is lost due to friction loss generated by a wedge block.

Therefore, it is necessary to provide a ratchet type one-way clutch for a semi-feeding combine harvester to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a ratchet wheel type one-way clutch of a semi-feeding combine harvester, which is characterized in that when a pawl on the outer wall of a ratchet wheel rotates along an idle rotation direction, the ratchet wheel drives a plurality of ratchets to rotate, the pawl cannot impact the ratchets in the process, and meanwhile, through the arrangement of a tension spring, the ratchets extrude the pawl when the ratchets rotate, so that the phenomenon that impact cannot be generated between the pawl and the ratchets in the pushing and combining process is avoided, and the defects in the technology are overcome.

In order to achieve the above purpose, the utility model provides the following technical scheme: a ratchet type one-way clutch of a semi-feeding combine harvester comprises a pawl seat sleeve, wherein an inner ring is fixedly connected to the central axis of the inner wall of the pawl seat sleeve, a ratchet wheel is arranged inside the inner ring, and the ratchet wheel is matched with the inner ring;

a fixed sleeve ring is arranged on one side of the outer wall of the inner ring and matched with the pawl seat sleeve, the fixed sleeve ring is fixedly connected with the inner wall of the pawl seat sleeve, the outer wall of the ratchet wheel is provided with a plurality of ratchets, the plurality of ratchets are uniformly distributed on the outer wall of the ratchet wheel in a ring shape, and mounting shafts are fixedly connected to two sides of the outer wall of the ratchet wheel;

the improved ratchet wrench is characterized in that one side of the outer wall of the fixed sleeve is fixedly connected with a fixed block, one side of the outer wall of the fixed block is hinged with a pawl, the pawl is matched with a ratchet, a through groove is formed in the inner wall of the pawl, a fixed rod is fixedly connected with the inside of the through groove, an extension spring is movably sleeved on the outer wall of the fixed rod, a fixed supporting rod is fixedly connected with the inner wall of the inner ring, one side of the extension spring, far away from the fixed sleeve, is movably sleeved with the fixed supporting rod, a rolling bearing is arranged on one side of the inner ring, far away from the fixed sleeve, of the outer wall of the inner ring, and the rolling bearing is matched with a pawl seat sleeve.

Preferably, the ratchet wheel and the inner wall of the installation shaft are provided with three clamping holes, and the three clamping holes are uniformly distributed on the ratchet wheel and the inner wall of the installation shaft in an annular manner.

Preferably, the number of the fixed blocks is set to be a plurality of, the fixed blocks are uniformly distributed on one side of the outer wall of the fixed sleeve ring in an annular mode, and the fixed blocks are matched with the inner ring.

Preferably, the number of the fixed supporting rods corresponds to that of the pawls, and the fixed supporting rods are uniformly distributed on the inner wall of the inner ring in an annular shape.

Preferably, the inner wall of the rolling bearing is matched with the mounting shaft, and the outer wall of the rolling bearing is provided with a shaft sleeve.

Preferably, the inner wall of the shaft sleeve is provided with a positioning groove at one side far away from the installation shaft, the positioning groove is internally and slidably connected with a steel ball, and the steel ball is fixedly connected with the pawl seat sleeve.

In the technical scheme, the utility model provides the following technical effects and advantages:

when the pawl through the ratchet outer wall is rotatory along the direction of idle running, the ratchet drives a plurality of ratchets rotatory, in-process, the pawl can not clash the ratchet, simultaneously through extension spring's setting, make the ratchet extrude the pawl when rotating, avoid between pawl and the ratchet can not produce the impact in bulldozing the combination in-process, whole process is stable smooth-going, avoid the ratchet to produce the friction when the motion with between the pawl simultaneously, thereby the life of clutch has been increased, it is compacter to enable the ratchet structure, can effectively reduce the volume of pawl seat cover, better adaptability has.

Drawings

In order to more clearly illustrate the embodiments of the present application or technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to the drawings.

FIG. 1 is a cross-sectional view of the overall construction of the present invention;

FIG. 2 is a cross-sectional view of the ratchet and pawl attachment of the present invention;

FIG. 3 is a cross-sectional view of the internal structure of the pawl sleeve of the present invention;

FIG. 4 is a partial structural view of the ratchet of the present invention;

fig. 5 is a sectional view showing the internal structure of the rolling bearing of the present invention.

Description of reference numerals:

1. a pawl seat cover; 2. an inner ring; 3. a ratchet wheel; 4. a fixed collar; 5. a ratchet; 6. installing a shaft; 7. a clamping hole; 8. a fixed block; 9. a pawl; 10. a through groove; 11. fixing the rod; 12. an extension spring; 13. fixing the supporting rod; 14. a rolling bearing; 15. a shaft sleeve; 16. positioning a groove; 17. and (5) steel balls.

Detailed Description

In order to make the technical solutions of the present invention better understood, those skilled in the art will now describe the present invention in further detail with reference to the accompanying drawings.

The utility model provides a ratchet type one-way clutch of a semi-feeding combine harvester, which comprises a pawl seat sleeve 1, wherein the central axis of the inner wall of the pawl seat sleeve 1 is fixedly connected with an inner ring 2, a ratchet wheel 3 is arranged inside the inner ring 2, and the ratchet wheel 3 is matched with the inner ring 2;

a fixed lantern ring 4 is arranged on one side of the outer wall of the inner ring 2, the fixed lantern ring 4 is matched with the pawl seat sleeve 1, the fixed lantern ring 4 is fixedly connected with the inner wall of the pawl seat sleeve 1, ratchets 5 are arranged on the outer wall of the ratchet wheel 3, the number of the ratchets 5 is multiple, the ratchets 5 are uniformly distributed on the outer wall of the ratchet wheel 3 in an annular shape, and mounting shafts 6 are fixedly connected to two sides of the outer wall of the ratchet wheel 3;

fixed lantern ring 4 outer wall one side fixedly connected with

fixed block

8, 8 outer wall one side of fixed block articulates there is pawl 9,

pawl

9 and 5 phase-matchs of ratchet, logical groove 10 has been seted up to pawl 9 inner wall, lead to the inside fixedly connected with dead lever 11 of groove 10, extension spring 12 has been cup jointed in the activity of dead lever 11 outer wall, 2 inner wall fixedly connected with fixed branch 13 of inner circle, extension spring 12 outer wall is kept away from dead lever 11 one side and is cup jointed with fixed branch 13 activity, 2 outer walls of inner circle are kept away from fixed lantern ring 4 one side and are equipped with antifriction bearing 14, antifriction bearing 14 and 1 phase-match of pawl seat cover.

Further, in the above technical scheme, the ratchet wheel 3 and the inner wall of the mounting shaft 6 are both provided with three clamping holes 7, and the three clamping holes 7 are annularly and uniformly distributed on the inner walls of the ratchet wheel 3 and the mounting shaft 6.

Further, in the above technical scheme, the number of the fixing blocks 8 is set to be a plurality of, the fixing blocks 8 are uniformly distributed on one side of the outer wall of the fixing sleeve ring 4 in an annular shape, and the fixing blocks 8 are matched with the inner ring 2.

Furthermore, in the above technical solution, the number of the fixing struts 13 corresponds to the number of the pawls 9, and a plurality of the fixing struts 13 are uniformly distributed on the inner wall of the inner ring 2 in a ring shape.

Further, in the above technical solution, the inner wall of the rolling bearing 14 matches with the mounting shaft 6, and the outer wall of the rolling bearing 14 is provided with a shaft sleeve 15.

Further, in the above technical scheme, a positioning groove 16 is formed in one side, away from the mounting shaft 6, of the inner wall of the shaft sleeve 15, a steel ball 17 is slidably connected inside the positioning groove 16, and the steel ball 17 is fixedly connected with the pawl seat sleeve 1.

This practical theory of operation:

referring to fig. 1-5 of the specification, in use, the ratchet 3 is rotated, the pawl 9 can be engaged with the ratchet 5, when the pawl 9 on the outer wall of the ratchet wheel 3 rotates along the idle rotation direction, the ratchet wheel 3 drives the plurality of ratchets 5 to rotate, in the process, the pawl 9 can not impact the ratchets 5, meanwhile, the extension spring 12 is arranged, so that the ratchet 5 extrudes the pawl 9 when the ratchet 5 rotates, the pawl 9 slides over the outer wall of the ratchet 5, the phenomenon that impact is not generated between the pawl 9 and the ratchet 5 in the pushing and combining process is avoided, the whole process is stable and smooth, meanwhile, the friction between the ratchets 5 and the pawls 9 is avoided during movement, the arrangement of the plurality of pawls 9 greatly enhances the torque and does not slip, thereby the service life of the clutch is prolonged, the structure of the ratchet wheel 3 is more compact, the volume of the pawl seat sleeve 1 can be effectively reduced, and the adaptability is better.

While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the utility model. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the utility model.

Claims

1. The utility model provides a semi-feeding combine ratchet formula one way clutch, includes pawl seat cover (1), its characterized in that: an inner ring (2) is fixedly connected to the central axis of the inner wall of the pawl seat sleeve (1), a ratchet wheel (3) is arranged inside the inner ring (2), and the ratchet wheel (3) is matched with the inner ring (2);

a fixed sleeve ring (4) is arranged on one side of the outer wall of the inner ring (2), the fixed sleeve ring (4) is matched with the pawl seat sleeve (1), the fixed sleeve ring (4) is fixedly connected with the inner wall of the pawl seat sleeve (1), ratchets (5) are arranged on the outer wall of the ratchet wheel (3), the number of the ratchets (5) is multiple, the ratchets (5) are uniformly distributed on the outer wall of the ratchet wheel (3) in an annular shape, and mounting shafts (6) are fixedly connected to two sides of the outer wall of the ratchet wheel (3);

fixed lantern ring (4) outer wall one side fixedly connected with fixed block (8), fixed block (8) outer wall one side articulates there is pawl (9), pawl (9) and ratchet (5) phase-match, logical groove (10) have been seted up to pawl (9) inner wall, lead to inside fixedly connected with dead lever (11) of groove (10), extension spring (12) have been cup jointed in dead lever (11) outer wall activity, inner circle (2) inner wall fixedly connected with fixed branch (13), extension spring (12) outer wall is kept away from dead lever (11) one side and is cup jointed with fixed branch (13) activity, inner circle (2) outer wall is kept away from fixed lantern ring (4) one side and is equipped with antifriction bearing (14), antifriction bearing (14) and pawl seat cover (1) phase-match.

2. A semi-feeding combine harvester ratchet type one-way clutch according to claim 1, characterized in that: ratchet (3) and installation axle (6) inner wall have all seted up card hole (7), the quantity of card hole (7) sets up to three, three card hole (7) are annular evenly distributed at ratchet (3) and installation axle (6) inner wall.

3. A semi-feeding combine harvester ratchet type one-way clutch according to claim 1, characterized in that: the quantity of fixed block (8) sets up to a plurality ofly, fixed block (8) are annular evenly distributed in fixed lantern ring (4) outer wall one side, fixed block (8) and inner circle (2) phase-match.

4. A semi-feeding combine harvester ratchet type one-way clutch according to claim 1, characterized in that: the number of the fixed supporting rods (13) corresponds to that of the pawls (9), and the fixed supporting rods (13) are uniformly distributed on the inner wall of the inner ring (2) in an annular shape.

5. A semi-feeding combine harvester ratchet type one-way clutch according to claim 1, characterized in that: the inner wall of the rolling bearing (14) is matched with the mounting shaft (6), and the outer wall of the rolling bearing (14) is provided with a shaft sleeve (15).

6. A semi-feeding combine harvester ratchet type one-way clutch according to claim 5, characterized in that: the inner wall of the shaft sleeve (15) is far away from one side of the mounting shaft (6) and is provided with a positioning groove (16), a steel ball (17) is slidably connected inside the positioning groove (16), and the steel ball (17) is fixedly connected with the pawl seat sleeve (1).