CN218454942U - Transmission part limiting and adjusting mechanism and harvester - Google Patents

Abstract

The utility model relates to a spacing adjustment mechanism of drive disk assembly and harvester. The spacing adjustment mechanism of drive disk assembly includes the transmission shaft, the transmission wheel subassembly, locking cover and locking ball, the transmission wheel subassembly includes installation sleeve and coaxial setting in a plurality of transmission rim plates of installation sleeve one end, the transmission shaft is located to the coaxial cover of installation sleeve, the locking hole that radially runs through it is seted up to the installation sleeve other end, the locking ball is arranged in the locking hole, be equipped with the locating hole that multiunit and locking hole correspond along its axial interval on the transmission shaft, the installation sleeve other end is equipped with the step annular, the coaxial cover of locking cover is at the installation sleeve other end, the coaxial concave removal annular that is equipped with in the position that corresponds the step annular on its inner wall, be connected with the elastic component between the one end lateral wall of removal annular and the cell wall of step annular, the diameter of locking ball is greater than the degree of depth in locking hole, and be less than the perpendicular interval between the diapire of removal annular and the inner wall of installation sleeve. The advantages are that: the driving wheel can be quickly replaced without using tools.

Description

Transmission part limiting and adjusting mechanism and harvester

Technical Field

The utility model relates to an agricultural machinery equipment field, in particular to spacing adjustment mechanism of transmission part and harvester.

Background

With the development of agricultural machinery, the yield of crops is higher and higher, and the demand of farmers on the types of crops harvested by machinery is higher and higher. In order to be suitable for harvesting of various crops and different working conditions, the harvester needs to be capable of working at various rotating speeds. To achieve rotational speed adjustment, it is often necessary to replace the pulleys or sprockets.

In the existing harvester, the driving wheels are mostly fixed by adopting spacer bushes or fastened by screws, tools are needed when the driving chain wheels are replaced, and the operation is complex, inconvenient and overall time and labor consuming.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a spacing adjustment mechanism of transmission part and harvester is provided, the effectual defect of overcoming prior art.

The utility model provides an above-mentioned technical problem's technical scheme as follows:

a transmission part limiting and adjusting mechanism comprises a transmission shaft, a transmission wheel assembly, a locking sleeve and a locking ball, wherein the transmission wheel assembly comprises an installation sleeve and a plurality of transmission wheel discs coaxially arranged at one end of the installation sleeve, the installation sleeve is coaxially sleeved on the transmission shaft, the other end of the installation sleeve is provided with a locking hole radially penetrating through the installation sleeve, the locking ball is arranged in the locking hole, a plurality of groups of positioning holes corresponding to the locking hole are formed in the transmission shaft at intervals along the axial direction of the transmission shaft, the other end of the installation sleeve is provided with a step ring groove extending to the end part of the installation sleeve, the locking sleeve is coaxially sleeved at the other end of the installation sleeve, a moving ring groove is coaxially and concavely formed in the part, corresponding to the step ring groove, of the inner wall of the locking sleeve, an elastic part is connected between the side wall of one end of the moving ring groove and the groove wall of the step ring groove, and the diameter of the locking ball is larger than the depth of the locking hole and smaller than the vertical distance between the bottom wall of the moving ring groove and the inner wall of the installation sleeve.

On the basis of the technical scheme, the utility model discloses can also do following improvement.

Further, the locking holes are arranged in a plurality of positions and distributed at equal intervals along the circumferential direction of the mounting sleeve, and the positioning holes in each corresponding group are arranged in a plurality of positions and correspond to the locking holes one to one.

Furthermore, at least two groups of positioning holes are arranged.

Further, the locking balls are steel balls.

Furthermore, the positioning hole is a spherical hole matched with the locking ball.

Further, the elastic member is a disc spring.

Further, the transmission wheel disc is a chain wheel or a belt pulley.

The beneficial effects of the utility model are that: the structure design is simple and reasonable, and the quick replacement of the transmission surface of the transmission wheel can be realized without using tools.

Still provide a harvester, including the spacing adjustment mechanism of drive disk assembly.

Drawings

Fig. 1 is a schematic structural view of the transmission component limiting and adjusting mechanism of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1. a drive shaft; 2. a drive wheel assembly; 3. a locking sleeve; 4. a locking ball; 5. an elastic member; 11. positioning holes; 21. installing a sleeve; 22. a drive sheave; 31. moving the ring groove; 211. a locking hole; 212. a step ring groove.

Detailed Description

The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.

Example 1

As shown in fig. 1, the transmission member limit adjusting mechanism of the present embodiment includes a transmission shaft 1, a transmission wheel assembly 2, a locking sleeve 3 and locking balls 4, wherein the transmission wheel assembly 2 includes a mounting sleeve 21 and a plurality of transmission wheel discs 22 coaxially disposed at one end of the mounting sleeve 21, the mounting sleeve 21 is coaxially sleeved on the transmission shaft 1, the other end of the mounting sleeve 21 is provided with a locking hole 211 radially penetrating through the mounting sleeve, the locking balls 4 are disposed in the locking hole 211, the transmission shaft 1 is provided with a plurality of sets of positioning holes 11 corresponding to the locking holes 211 at intervals along an axial direction thereof, the other end of the mounting sleeve 21 is provided with a stepped ring groove 212 extending to an end portion thereof, the locking sleeve 3 is coaxially sleeved on the other end of the mounting sleeve 21, a moving ring groove 31 is coaxially recessed at a portion corresponding to the stepped ring groove 212 on an inner wall thereof, an elastic member 5 is connected between a side wall of one end of the moving ring groove 31 and a groove wall of the stepped ring groove 212, and a diameter of the locking ball 4 is larger than a depth of the locking hole 211 and smaller than a vertical distance between a bottom wall of the moving ring groove 31 and an inner wall of the mounting sleeve 21.

The adjustment process is as follows:

in the initial state, the locking balls 4 are partially inserted into the positioning holes 11, and the inner wall of the locking sleeve 3 covers the locking holes 211 (in this state, the locking balls 4 are not separated from the positioning holes 11), that is, in this state, because the locking balls 4 are partially inserted into the positioning holes 11, the axial and radial positions between the mounting sleeve 21 and the transmission shaft 1 are fixed by the engagement of the locking balls 4, when the position of the adjustable transmission wheel assembly 2 needs to be changed (i.e., the axial position of the transmission wheel assembly 2 on the transmission shaft 1 needs to be adjusted in the process of changing the engagement of any one of the transmission wheel discs 22 with the chain), by pulling the locking sleeve 3 in the axial direction toward one end of the mounting sleeve 21, the locking sleeve 3 will move to the position where most of the moving ring grooves 31 face the locking holes 211 (in this process, the elastic members 5 are compressed), at this time, the cavity enclosed between the movable ring groove 31 and the locking hole 211 can completely accommodate the locking ball 4, when the driving wheel assembly 2 is pushed by external force to move axially along the driving shaft 1, the locking ball 4 is forced to move away from the positioning hole 11 due to enough movable cavity until the driving wheel assembly 2 moves axially until the locking hole 211 faces another group of positioning holes 11, the external force to the locking sleeve 3 is cancelled, the elastic part 5 rebounds and extends, the locking sleeve 3 moves axially and returns to the position where the movable ring groove 31 is dislocated with the locking hole 211, the inner wall of the locking sleeve 3 can press the locking ball 4 to move to be partially embedded into the positioning hole 11, and the locking ball 4 is ensured not to be separated from the positioning hole 11 under the limit of the locking sleeve 3, so that the driving wheel assembly 2 and the driving shaft 1 are fixed again, and the driving wheel assembly 2 obtains axial displacement in the whole operation process, the transmission surface is changed, the structural design of the whole mechanism is simple and reasonable, and the quick replacement of the transmission wheel (transmission surface) can be realized without using tools.

In a preferred embodiment, the plurality of locking holes 211 are arranged and distributed at equal intervals along the circumferential direction of the mounting sleeve 21, and a plurality of positioning holes 11 are arranged for each corresponding set and correspond to the locking holes 211 one by one.

In the above-mentioned embodiment, locking hole 211 designs a plurality ofly for during the locking, a plurality of locking balls 4's locking effect can be received all around to installation sleeve 21, and the locking is better stable, and simultaneously, the quantity of every group locating hole 11 all with the quantity one-to-one of locking hole 211, make like this at locking ball 4 in the locating hole 11 of gomphosis that can the one-to-one after the axial emergence displacement along transmission shaft 1, overall structure designs better rationally.

In this embodiment, at least two sets of positioning holes 11 are provided.

In this embodiment, the locking ball 4 is a steel ball, which is wear-resistant and durable.

In a preferred embodiment, the positioning hole 11 is a spherical hole adapted to the locking ball 4.

In the above embodiment, the locking ball 4 can slide in good contact with the spherical positioning hole 11 when it is partially pushed into the positioning hole 11 and fitted into the positioning hole 11 or pushed out of the positioning hole 11.

In this embodiment, the elastic member 5 may be a disc spring.

In this embodiment, the transmission wheel 22 is a sprocket or a pulley. That is to say, the whole transmission part limiting and adjusting mechanism is suitable for a chain transmission mechanism or a belt transmission mechanism.

Example 2

The harvester of the embodiment comprises the transmission part limit adjusting mechanism in the embodiment 1.

It should be noted that: the limiting and adjusting mechanism for the transmission part in the embodiment is not limited to be used for adjusting the related transmission part on the harvester, and can also be applied to other mechanical equipment.

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", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and 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 at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

While embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations of the above embodiments may be made by those of ordinary skill in the art without departing from the scope of the present invention.

Claims (8)

1. The utility model provides a spacing adjustment mechanism of drive disk assembly which characterized in that: including transmission shaft (1), drive wheel subassembly (2), locking cover (3) and locking ball (4), drive wheel subassembly (2) including installation sleeve (21) and coaxial set up in a plurality of transmission rim plate (22) of installation sleeve (21) one end, installation sleeve (21) coaxial cover is located on transmission shaft (1), radial locking hole (211) that run through it is seted up to installation sleeve (21) other end, locking ball (4) are arranged in locking hole (211), be equipped with the multiunit along its axial interval on transmission shaft (1) with locating hole (11) that locking hole (211) correspond, installation sleeve (21) other end is equipped with step annular (212) that extend to its this end tip, locking cover (3) coaxial cover is located installation sleeve (21) other end corresponds on its inner wall the coaxial concave removal annular (31) that are equipped with in position of step annular (212), the one end lateral wall of removal annular (31) with be connected with elastic component (5) between the cell wall of step annular (212), the diameter of locking ball (4) is greater than the degree of depth of locking hole (211) is less than the perpendicular interval of installation sleeve (21) and the diapire.

2. The drive component spacing adjustment mechanism of claim 1, wherein: the locking holes (211) are arranged in a plurality and distributed at equal intervals along the circumferential direction of the mounting sleeve (21), and each group of corresponding positioning holes (11) are arranged in a plurality and correspond to the locking holes (211) one by one.

3. The drive component spacing adjustment mechanism of claim 1, wherein: the positioning holes (11) are provided with at least two groups.

4. The drive component spacing adjustment mechanism of claim 1, wherein: the locking balls (4) are steel balls.

5. The drive component spacing adjustment mechanism of claim 1, wherein: the positioning hole (11) is a spherical hole matched with the locking ball (4).

6. The drive component spacing adjustment mechanism of claim 1, wherein: the elastic piece (5) is a disc spring.

7. The drive component spacing adjustment mechanism of claim 1, wherein: the transmission wheel disc (22) is a chain wheel or a belt pulley.

8. A harvester, characterized in that: comprising a drive member limit adjustment mechanism according to any one of claims 1 to 7.

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