阅读说明：本技术 一种半联轴组件、联轴装置和传动轴连接方法 (Half coupling assembly, coupling device and transmission shaft connecting method ) 是由 李�浩 白金福 简铁响 蒋海文 于 2019-11-06 设计创作，主要内容包括：本发明实施例公开了一种半联轴组件、联轴装置和传动轴连接方法,包括形成有轴孔的轴体,轴孔形成为圆台状,轴孔至少部分内表面上贴合设置有沿轴孔的轴向方向产生位移的至少一块紧定块,且紧定块沿轴向方向配合形成有用于放置传动轴的弧形槽,紧定块中远离轴体的侧面和轴孔的内侧面沿轴向方向形成有倾斜度。联轴装置包括半联轴组件,平键和柱销。连接方法包括将传动轴组装后,调节紧定块紧定,而后通过柱销连接半联轴组件。通过上述设置,在将传动轴装配后通过调节紧定块的方式来提高紧定效果,避免了采用螺栓连接的不稳定和易松动的问题；同时采用两个半联轴组件的组合方式,进一步提高了对微小偏移量的耐受性。(The embodiment of the invention discloses a half coupling assembly, a coupling device and a transmission shaft connecting method, which comprise a shaft body formed with a shaft hole, wherein the shaft hole is in a circular truncated cone shape, at least one fastening block which generates displacement along the axial direction of the shaft hole is attached to at least part of the inner surface of the shaft hole, the fastening block is matched with and formed with an arc-shaped groove used for placing a transmission shaft along the axial direction, and the side surface of the fastening block, which is far away from the shaft body, and the inner side surface of the shaft hole form inclination along the axial direction. The coupling device includes a half coupling assembly, a flat key and a pin. The connecting method comprises the steps of assembling the transmission shaft, adjusting the fastening block to fasten, and then connecting the half coupling components through pins. Through the arrangement, the fastening effect is improved by adjusting the fastening block after the transmission shaft is assembled, and the problems of instability and easy looseness of bolt connection are avoided; and meanwhile, the tolerance to tiny offset is further improved by adopting a combination mode of two half coupling components.)

1. The utility model provides a semi-coupling subassembly, includes that inside link up and is formed with axis body (2) in shaft hole (1), its characterized in that, shaft hole (1) forms into the round platform form, the laminating is provided with on at least partial internal surface in shaft hole (1) along at least one holding block (3) that the axial direction in shaft hole (1) produced the displacement, just holding block (3) are followed the axial direction cooperation is formed with the arc wall that is used for placing transmission shaft (7), keep away from in holding block (3) the side of axis body (2) with the medial surface in shaft hole (1) is formed with the gradient along the axial direction.

2. A semi-coupling assembly according to claim 1, characterised in that the clamping block (3) comprises at least a fastening portion (31) which is displaced in the axial direction and a push portion (32) which extends from one end portion of the fastening portion (31) in a direction perpendicular to the axial direction towards a side remote from the shaft bore (1).

3. A semi-coupling assembly according to claim 2, characterized in that said fastening portion (31) tapers in thickness from the end provided with said thrust portion (32) to the other end;

the length of the fastening portion (31) in the axial direction is not less than the length of the shaft hole (1) in the axial direction;

and a gap is formed between two adjacent fastening blocks (3) along the axial direction.

4. A semi-coupling assembly according to claim 2 or 3, characterised in that the fastening portion (31) is provided with at least one bolt (33) extending in the axial direction in a rotatable manner, the bolt (33) being adapted to be inserted into the shaft body (2) and to be telescoped in the axial direction.

5. A semi-coupling assembly according to claim 4, characterized in that the end face of the shaft body (2) near the thrust portion (32) is recessed inwardly in the axial direction to form a through hole having an internal thread on an inner surface, and the outer surface of the bolt (33) is formed with an external thread matching the internal thread toward the thrust portion (32) from a side away from the thrust portion (32);

the number of the fastening blocks (3) is 2-4, the fastening blocks extend along the circumferential direction of the shaft body (2) at equal intervals, and one bolt (33) is arranged on each fastening portion (31) of each fastening block (3).

6. A semi-coupling assembly according to claim 2 or 3, characterised in that part of the inner wall of the shaft body (2) is in full contact with the outer surface of the fastening portion (31), and a groove (34) for fitting the flat key (4) is provided on the inner wall of at least one of the fastening blocks (3).

7. A semi-coupling assembly as claimed in claim 6, characterized in that the side portion of the fastening block (3) remote from the shaft body (2) is recessed along the axial direction to form a groove (34) for embedding the flat key (4), and the groove (34) and the fastening portion (31) have the same length along the axial direction.

8. A semi-coupling assembly according to claim 1 or 2, characterised in that the inclination is 5-30 °.

9. A coupling arrangement, characterized by two half-coupling assemblies according to any one of claims 1-8, and a flat key (4) partially embedded in the tightening block (3) on the side remote from the shaft body (2); wherein the content of the first and second substances,

the two half coupling assemblies are sequentially arranged along the axial direction, and the diameters of the shaft holes (1) close to the two end faces are the minimum diameter of the shaft holes (1);

two set up along axial direction one-to-one's multiunit jack (5) on half shaft coupling subassembly's axis body (2), every group jack (5) are gone up through a pin (6) through connection.

10. A propeller shaft connecting method using the coupling device according to claim 9, comprising the steps of:

s100, fitting and sleeving the outer surface of the fastening block (3) and the inner surface of the shaft body (2);

s200, arranging the transmission shaft (7) and the flat key (4) in the arc-shaped groove after assembling;

s300, adjusting the fastening block (3) to move from the lower part of the slope formed by inclination to the upper part of the slope along the axial direction, fastening the transmission shaft (7), and forming a transmission kit;

s400, connecting the two transmission external members through each group of jacks (5) through pins (6).

Technical Field

The embodiment of the invention relates to the field of coupling structures and connection modes, in particular to a half coupling assembly, a coupling device and a transmission shaft connection method.

Background

The coupler is used as an important component in the transmission device and plays a role in connection and bearing protection in the transmission process; especially, the application of the gypsum board production line is wider. For example, the gypsum board is relatively large in overall size after being cut, so that belt transmission equipment is relatively large in size and long in belt transmission shaft design, which is generally required to be more than 10 meters, which is often required in the transportation of a production line; when the transmission shaft is long, a single transmission shaft is difficult to manufacture and inconvenient to install, so that the transmission is usually realized by basically splicing 2 or more transmission shafts.

However, as shown in fig. 1 and 2, the conventional connection mode is usually a two-half-circle double-key connection type, that is, the two half-cylinders are spliced together to form a cylindrical shaft hole inside, the transmission shaft and the shaft body installed in the shaft hole are stabilized by a flat key (for example, block structures in two directions up and down the cylindrical shaft hole on fig. 2 are flat keys), and then the two half-cylinders are connected by 6 sets of bolts to clamp the transmission shaft for transmission.

Disclosure of Invention

Therefore, the embodiment of the invention provides a semi-coupling assembly, a coupling device and a transmission shaft connecting method, wherein a fastening block is further arranged on the inner wall of a shaft body, the contact surface of the shaft body and the shaft body is formed into a conical surface, and the transmission shaft is fastened by the movement of the fastening block, so that the fastening stability is realized; and the two half coupling assemblies are further connected through the fixing piece, so that the accuracy of the whole transmission cannot be influenced even if a small offset exists.

In order to achieve the above object, an embodiment of the present invention provides the following:

in an aspect of an embodiment of the present invention, a semi-coupling assembly is provided, including a shaft body having a shaft hole formed therein, the shaft hole being formed in a circular truncated cone shape, at least one fastening block being attached to at least a portion of an inner surface of the shaft hole and being displaced along an axial direction of the shaft hole, the fastening block being formed with an arc-shaped groove along the axial direction in a matching manner, and an inclination being formed along the axial direction between a side surface of the fastening block away from the shaft body and an inner side surface of the shaft hole.

In a preferred aspect of the present invention, the fastening block includes at least a fastening portion that is displaced in the axial direction, and a pushing portion that extends from an end portion of the fastening portion in a direction perpendicular to the axial direction toward a side away from the shaft hole.

As a preferable aspect of the present invention, the fastening portion has a thickness gradually decreasing from one end provided with the pushing portion to the other end;

the length of the fastening portion in the axial direction is not less than the length of the shaft hole in the axial direction;

and a gap is formed between two adjacent fastening blocks along the axial direction.

In a preferred aspect of the present invention, the fastening portion is rotatably provided with at least one bolt extending in the axial direction, the bolt being inserted into the shaft body and extending and contracting in the axial direction.

As a preferable mode of the present invention, an end surface of the shaft body near the pushing portion is recessed inward in the axial direction to form a through hole having an inner surface with an internal thread, and an outer surface of the bolt forms an external thread matching the internal thread from a side away from the pushing portion toward the pushing portion;

the number of the fastening blocks is 2-4, the fastening blocks extend along the circumferential direction of the shaft body at equal intervals, and one bolt is arranged on each fastening portion of each fastening block.

In a preferred embodiment of the present invention, a part of an inner wall of the shaft body is completely attached to an outer surface of the fastening portion, and a groove for fitting the flat key is formed in an inner wall of at least one of the fastening blocks.

As a preferable scheme of the present invention, a groove for embedding the flat key is formed in a recessed manner along the axial direction at a side portion of the fastening block away from the shaft body, and lengths of the groove and the fastening portion along the axial direction are equal.

As a preferable aspect of the present invention, the inclination is 5 to 30 °.

In another aspect of the embodiment of the present invention, there is provided a coupling device, including two half coupling assemblies as described above, and a flat key partially embedded on a side of the fastening block away from the shaft body; wherein the content of the first and second substances,

the two half coupling assemblies are sequentially arranged along the axial direction, and the diameters of the shaft holes of the two adjacent end surfaces are the minimum diameters of the shaft holes;

and a plurality of groups of jacks which correspond to each other along the axial direction one by one are arranged on the shaft body of the two half shaft coupling assemblies, and each group of jacks is connected with each other through a pin.

In another aspect of the embodiments of the present invention, there is provided a propeller shaft connecting method using the above-described coupling device, including the steps of:

s100, fitting and sleeving the outer surface of the fastening block and the inner surface of the shaft body;

s200, arranging the transmission shaft and the flat key in the arc-shaped groove after assembling;

s300, adjusting the fastening block to move from the lower part of the slope formed by inclination to the upper part of the slope along the axial direction, fastening the transmission shaft, and forming a transmission kit;

s400, connecting the two transmission external members through each group of jacks through pins.

The embodiment of the invention has the following advantages:

1. the shaft body is internally sleeved with the fastening block, and a certain gradient is formed on the contact surface of the fastening block and the shaft body, so that the fastening block is inwards contracted to tightly hold the transmission shaft in the process that the fastening block moves along the shaft body, reasonable adjustment is conveniently carried out according to actual assembly, and the tightening effect can be better improved;

2. the two half coupling assemblies are connected through the pins, and in the transmission process of the transmission shafts on the two half coupling assemblies, a part of small offset can be offset through the pins, so that the transmission accuracy is improved, and the abrasion is reduced.

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. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.

The structures, ratios, sizes, and the like shown in the present specification are only used for matching with the contents disclosed in the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions that the present invention can be implemented, so that the present invention has no technical significance, and any structural modifications, changes in the ratio relationship, or adjustments of the sizes, without affecting the effects and the achievable by the present invention, should still fall within the range that the technical contents disclosed in the present invention can cover.

FIG. 1 is a schematic view of a coupling and a transmission shaft according to the prior art;

FIG. 2 is another schematic view of a prior art coupling and drive shaft connection;

FIG. 3 is a schematic structural view of a semi-coupling assembly according to an embodiment of the present invention;

fig. 4 is a schematic structural view of a coupling device connecting a transmission shaft according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a part of the fastening block and the flat key provided by the embodiment of the invention.

In the figure:

1-shaft hole; 2-a shaft body; 3-a fastening block; 4-a flat bond; 5-a jack; 6-pin; 7-a transmission shaft;

31-a fastening portion; 32-a pushing and moving part; 33-bolts; 34-a trough body.

Detailed Description

The present invention is described in terms of particular embodiments, other advantages and features of the invention will become apparent to those skilled in the art from the following disclosure, and it is to be understood that the described embodiments are merely exemplary of the invention and that it is not intended to limit the invention to the particular embodiments disclosed. 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.

As shown in fig. 3, the present invention provides a semi-coupling assembly, including a shaft body 2 having a shaft hole 1 formed therein, wherein the shaft hole 1 is formed in a circular truncated cone shape, at least one fastening block 3 that is displaced along an axial direction of the shaft hole 1 is attached to at least a portion of an inner surface of the shaft hole 1, a through hole for placing a transmission shaft 7 is formed in the fastening block 3 along the axial direction, and an inclination is formed in a side surface of the fastening block 3 away from the shaft body 2 and an inner side surface of the shaft hole 1 along the axial direction.

Of course, the shaft body 2 may be formed by joining a plurality of divided pieces. Simultaneously, the tight decide piece 3 both can be for following axial direction is formed with open-ended arc ring, also can be for the polylith concatenation to form, and the shape that the tight decide piece 3 concatenation formed can not do further requirement, as long as make under the state of tightening up, the structure that the tight decide piece 3 combination of polylith formed can at least partly embrace transmission shaft 7 and tighten up can.

In a preferred embodiment of the present invention, in order to enable the holding block 3 to facilitate the movement in the axial direction and improve the operability of the entire semi-coupling assembly, the holding block 3 includes at least a fastening portion 31 that is displaced in the axial direction, and a pushing portion 32 that extends from an end portion of the fastening portion 31 in a direction perpendicular to the axial direction toward a side away from the shaft hole 1.

In a further preferred embodiment, the fastening portion 31 has a thickness gradually decreasing from one end provided with the pushing portion 32 to the other end. Through the arrangement mode, in the process of pushing towards the direction far away from the pushing part 32 through the pushing part 32, the diameter of the arc-shaped groove formed by matching the fastening parts 31 can be reduced, and therefore the requirement of practical use is met.

In a more preferred embodiment, in order to make the adjustment accuracy higher, the length of the fastening portion 31 in the axial direction is not smaller than the length of the shaft hole 1 in the axial direction; and a gap is formed between two adjacent fastening blocks 3 along the axial direction. Through the arrangement of the gap, the diameter can be adjusted in a mode of reducing or expanding the gap during moving.

In a more preferred embodiment of the present invention, in order to improve the adjustment accuracy, at least one bolt 33 extending in the axial direction is rotatably provided on the fastening portion 31, and the bolt 33 is inserted into the shaft body 2 and is extended and contracted in the axial direction.

The arrangement of the bolt 33 can be adjusted according to actual conditions, for example, in a preferred embodiment, a through hole with an internal thread on the inner surface is formed on the end surface of the shaft body 2 close to the pushing part 32 in an inward concave manner along the axial direction, and an external thread matched with the internal thread is formed on the outer surface of the bolt 33 from the side far away from the pushing part 32 to the pushing part 32. The matched rotation between the internal thread and the external thread is realized by rotating the bolt 33, and the displacement adjustment effect is achieved.

In a more preferred embodiment, the number of the fastening blocks 3 is 2-4, and the fastening blocks extend along the circumferential direction of the shaft body 2 at equal intervals, and one bolt 33 is disposed on each fastening portion 31 of each fastening block 3.

In a further preferred embodiment, a part of the inner wall of the shaft body 2 completely contacts with the outer surface of the fastening portion 31, and a groove 34 for fitting the flat key 4 is provided on the inner wall of at least one of the fastening blocks 3. That is, the outer surface of the fastening portion 31 is attached to the inner wall of the shaft body 2, so as to improve the adjustment accuracy, and of course, the groove 34 is provided on the inner wall of the fastening block 3, and the groove 34 is generally provided on the side of the fastening portion 31 away from the shaft body 2.

In a preferred embodiment, as shown in fig. 5, a side portion of the fastening block 3 away from the shaft body 2 is recessed along the axial direction to form a groove 34 for embedding the flat key 4, and the lengths of the groove 34 and the fastening portion 31 along the axial direction are equal.

Here, as shown in particular in fig. 3, the inclination may be further defined as an angle of inclination between two lines on a vertical section in said axial direction, i.e. an angle defining an angle of inclination which may be further defined as 5-30 °, as seen in fig. 3. Of course, the tightness can be adjusted according to the requirement.

The invention also provides a coupling device, as shown in fig. 4, comprising two half coupling components as described above, and a flat key 4 partially embedded on the side of the fastening block 3 away from the shaft body 2; wherein the content of the first and second substances,

the two half coupling assemblies are sequentially arranged along the axial direction, and the diameters of the shaft holes 1 of the two adjacent end surfaces are the minimum diameter of the shaft holes 1;

two set up along axial direction one-to-one's multiunit jack 5 on half shaft coupling subassembly's the axis body 2, every group jack 5 is last through a pin 6 through connection.

Meanwhile, each group of the insertion holes 5 can be arranged at equal intervals along the circumferential direction of the shaft body 2, the number of the insertion holes can be selected according to the actual situation, and the pins 6 are preferably made of nylon, so that the wear resistance is better improved.

The invention also provides a transmission shaft connecting method adopting the coupling device, which comprises the following steps:

s100, fitting and sleeving the outer surface of the fastening block 3 and the inner surface of the shaft body 2;

s200, arranging the transmission shaft 7 and the flat key 4 in the arc-shaped groove after assembling;

s300, adjusting the fastening block 3 to move from the lower part of the slope formed by inclination to the upper part of the slope along the axial direction, fastening the transmission shaft 7, and forming a transmission kit;

s400, connecting the two transmission external members through each group of jacks 5 through pins 6.

Of course, the connection between two transmission shafts 7 is not limited, and the connection between a plurality of transmission shafts 7 only needs to be performed between every two transmission shafts 7 by the above-mentioned connection method.

Although the invention has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.