CN215487299U

CN215487299U - Split type drum-shaped tooth type coupling

Info

Publication number: CN215487299U
Application number: CN202121596554.4U
Authority: CN
Inventors: 朱昌平; 吴涛; 张善高
Original assignee: Taier Heavy Industry Co Ltd
Current assignee: Taier Heavy Industry Co Ltd
Priority date: 2021-07-14
Filing date: 2021-07-14
Publication date: 2022-01-11
Anticipated expiration: 2031-07-14

Abstract

The utility model discloses a split type drum-shaped tooth type coupling, which comprises an inner gear sleeve, a driving end outer gear shaft sleeve, a driven end outer gear shaft sleeve, a left end cover, a right end cover, a left gland and a right gland, wherein the inner gear sleeve is connected with the outer gear shaft sleeve through a gear pair; the driven end external tooth shaft sleeve comprises a driven end shaft sleeve body and a gear sleeve; the gear sleeve is sleeved on the driven end shaft sleeve body and is axially limited through a limiting element. The outer gear sleeve has high material utilization rate and can be conveniently carried out after the gear parts are worn. Meanwhile, the utilization rate of the material of the inner gear sleeve is high, the manufacturing cost can be effectively saved, and the material utilization rate is improved.

Description

Split type drum-shaped tooth type coupling

Technical Field

The utility model belongs to the technical field of transmission, and particularly relates to a crowned tooth coupling.

Background

The drum-shaped tooth type coupling has the capability of comprehensively compensating the relative offset of two shafts, has the advantages of compact structure, large bearing capacity, wide application range, high transmission efficiency, reliable work and the like, and is widely applied to industries such as metallurgy, mine, petroleum, chemical engineering, hoisting and transportation and the like.

As shown in fig. 9, the current standard GIICL-type crowned tooth coupling structure is as follows: the device mainly comprises two external tooth shaft sleeves with the same tooth number, two inner gear rings with flanges and a gland; the two external gear shaft sleeves are respectively and fixedly connected with the end parts of the driving shaft and the driven shaft, the two inner gear rings are respectively meshed with the two external gear shaft sleeves, and flanges of the two inner gear rings are connected into a whole through bolts, so that the two-shaft connection and the torque transmission are realized.

The disadvantages of this structure are: when the tooth part of the external gear shaft sleeve is abraded or broken, the external gear shaft sleeve needs to be integrally replaced, and the maintenance cost is high; because the inner hole of the external gear shaft sleeve is in transition or interference fit with the excircle of the transmission shaft, the external gear shaft sleeve is troublesome to mount and dismount, the maintenance cost and difficulty are increased, and the working efficiency is influenced; the external gear shaft sleeve adopts an integral structure, so that the material utilization rate is low and the manufacturing cost is high; secondly, the inner gear ring adopts a flange type structure, so that the material utilization rate is low and the manufacturing cost is high; meanwhile, a plurality of reamed hole bolts on the inner gear ring need to be assembled and disassembled during assembly and disassembly, and the assembly and disassembly ratio efficiency is low.

Disclosure of Invention

The utility model aims to solve the problem of providing a split type drum-shaped tooth type coupling, which has high utilization rate of outer gear sleeve materials and can be conveniently carried out when tooth parts are abraded. Meanwhile, the utilization rate of the material of the inner gear sleeve is high, and the bearing capacity is high.

The utility model relates to a split type drum-shaped tooth type coupling, which comprises an inner gear sleeve, a driving end outer gear shaft sleeve, a driven end outer gear shaft sleeve, a left end cover, a right end cover, a left gland and a right gland, wherein the inner gear sleeve is connected with the outer gear shaft sleeve through a gear pair; the driven end external tooth shaft sleeve comprises a driven end shaft sleeve body and a gear sleeve; the gear sleeve is sleeved on the driven end shaft sleeve body and is axially limited through a limiting element.

Furthermore, the connection mode of the gear sleeve and the shaft sleeve body is key connection.

Further, the key connections are involute, rectangular or flat key connections.

Furthermore, the connection mode of the gear sleeve and the shaft sleeve body is jaw connection or flat hole connection.

Further, the inner gear sleeve is of an integral cylindrical structure.

Furthermore, the limiting element comprises a clamping ring which is arranged in a clamping groove at the inner end of the shaft sleeve body and tightly pressed on the inner end face of the gear sleeve.

Furthermore, the limiting element comprises a pressing plate, the pressing plate is sleeved on the excircle of the inner end of the shaft sleeve body and tightly pressed on the inner end face of the gear sleeve, and the pressing plate is connected with the shaft sleeve body through a screw.

Furthermore, the device also comprises a left sealing ring and a right sealing ring; at least one sealing ring is arranged between the left end cover and the driving end shaft sleeve body, and between the right end cover and the driven end shaft sleeve body.

Further, the transition is through circle conic section D between excircle B section and the excircle C section of axle sleeve body.

Furthermore, the gland is provided with an inner spigot, the end cover is provided with an inner spigot, the inner spigot and the outer spigot are positioned through the inner spigot and the outer spigot and connected through a fastener, and the sealing ring is pressed in the spigot.

The split drum-shaped tooth type coupling has the advantages that: the driving end external tooth shaft sleeve and the driven end external tooth shaft sleeve are of split structures and are composed of a shaft sleeve body and a gear sleeve: when the tooth part of the external gear shaft sleeve is abraded or broken, the shaft sleeve body does not need to be detached from the transmission shaft only by replacing the tooth sleeve, so that the maintenance cost is greatly reduced, and the working efficiency is ensured; meanwhile, the material utilization rate is improved, and the manufacturing cost is reduced; the inner gear sleeve is designed into a cylindrical shape, so that the material utilization rate is improved, and the cost is reduced; under the condition of the same specification, larger tooth diameter can be obtained, and the bearing capacity of the product is improved; thirdly, the product standardization degree is improved, and the production period is shortened.

Drawings

FIG. 1 is a front view of a split crown tooth coupling of the present invention.

Fig. 2 is a view a of fig. 1.

Fig. 3 is a second view from a in fig. 1.

Fig. 4 is a view three taken along a direction of fig. 1.

Fig. 5 is a view four in the direction a of fig. 1.

Fig. 6 is a view from a to five of fig. 1.

Fig. 7 is a first schematic diagram of a limiting structure of the gear sleeve.

Fig. 8 is a schematic diagram of a limiting structure of the gear sleeve.

FIG. 9 is a schematic view of a prior art crown gear coupling of the background art.

Detailed Description

The following detailed description of the utility model is provided to better understand the improvements made by the present invention over the prior art.

Example 1

As can be seen from fig. 1, the split drum-shaped tooth type coupling of the present invention includes an inner gear sleeve 4, a driving end external tooth shaft sleeve, a driven end external tooth shaft sleeve, a left end cover 6, a right end cover 6, and a left gland 7, wherein the inner gear sleeve and the external tooth shaft sleeve are connected through a gear pair, and the left gland 7 and the right gland 7 respectively compress the left end cover 6 and the right end cover 6 at the left end and the right end of the inner gear sleeve 4: the driving end external tooth shaft sleeve and the driven end external tooth shaft sleeve are of split structures, the driving end external tooth shaft sleeve comprises a driving end shaft sleeve body 1 and a gear sleeve 2, and the gear sleeve 2 is sleeved on the driving end shaft sleeve body 1 and is axially limited through a limiting element; the driven end external tooth shaft sleeve comprises a driven end shaft sleeve body 9 and a gear sleeve 2; the gear sleeve 2 is sleeved on the driven end shaft sleeve body 9 and is axially limited through a limiting element.

The driving end external tooth shaft sleeve and the driven end external tooth shaft sleeve are of split structures and are composed of a shaft sleeve body and a gear sleeve: when the tooth part of the external gear shaft sleeve is worn or broken, only the gear sleeve 2 needs to be replaced, so that the maintenance cost is greatly reduced; the shaft sleeve body does not need to be detached from a transmission shaft (a driving shaft or a driven shaft), so that the maintenance difficulty and cost are reduced, and the working efficiency is ensured; secondly, the main failure mode of the crowned tooth coupling is tooth wear, so that the inner gear sleeve 4 and the gear sleeve 2 can be made of high-quality alloy steel and subjected to special heat treatment to increase the tooth surface strength, while the shaft sleeve body which is not easy to damage can be made of common steel and subjected to common heat treatment, and the material cost and the heat treatment cost are greatly saved; meanwhile, the material utilization rate is improved, and the manufacturing cost is reduced.

Example 2

As can be seen from fig. 2, 3, 4, 5 and 6, the split drum tooth coupling of the present invention has the following connection modes of the tooth sleeve 2 and the shaft sleeve body:

i, key connection: the gear sleeve 2 is connected with the shaft sleeve body through an involute spline, a rectangular spline or a flat key;

II, other connections: the connection mode of the gear sleeve 2 and the shaft sleeve body is flat hole connection or jaw connection.

The gear sleeve 2 is connected with the driving end shaft sleeve body 1 and the driven end shaft sleeve body 9 in the above mode, so that the gear sleeve is simple to disassemble and install, and the spare part cost, the use cost and the maintenance cost are reduced.

Example 3

As can be seen from fig. 1, the split drum tooth coupling of the present invention: the inner gear sleeve 4 is of an integral cylindrical structure.

Under the condition that the diameters of the outer circles are the same, the integral cylindrical inner gear sleeve can obtain larger diameter of the tooth part, the bearing capacity of the tooth part is improved to a certain degree, a hole reaming bolt is not needed, and the assembly and disassembly are convenient. Meanwhile, the integral cylindrical structure improves the material utilization rate of the inner gear sleeve and reduces the manufacturing cost.

In addition, under the condition of a certain specification, the size change point of the crowned tooth coupling is mainly the hole diameter and the length of the shaft sleeve, so that the inner tooth sleeve and the outer tooth sleeve are serialized and modularized, the standardization degree of a product is convenient to improve, and the production period is shortened.

Example 4

As can be seen from fig. 7 and 8, the stop elements of the split drum tooth coupling according to the present invention can be as follows:

the limiting element comprises a clamping ring 3, and the clamping ring 3 is arranged in a clamping groove at the inner end of the shaft sleeve body and tightly pressed on the inner end surface of the gear sleeve 2; and the limiting element comprises a pressing plate 10, the pressing plate 10 is sleeved on the excircle of the inner end of the shaft sleeve body and tightly pressed on the inner end surface of the gear sleeve 2, and the limiting element is connected with the shaft sleeve body through a screw.

The gear sleeve 2 is fastened in a manner of matching a clamping ring and a pressing plate with a screw, so that the axial movement of the gear sleeve is effectively prevented, the tooth parts of the external gear shaft sleeve and the internal gear sleeve are completely meshed, the abrasion of a gear is delayed, and the service life of the coupler is prolonged; meanwhile, the gear sleeve 2 can be easily disassembled as long as the clamping ring, the pressing plate and the screw are disassembled.

Example 5

As can be seen from fig. 1, the split drum tooth coupling of the present invention further includes left and right seal rings 8; at least one sealing ring 8 is arranged between the left end cover 6 and the driving end shaft sleeve body 1, and between the right end cover 6 and the driven end shaft sleeve body 9.

The sealing ring 8 prevents the inside of the coupler from entering dust and the like to influence the service life of the coupler.

Example 6

As can be seen from fig. 1, the split drum tooth coupling of the present invention: the excircle B section and the excircle C section of the shaft sleeve body are transited through the conical section D section.

Set up circle cone section D section on the excircle of axle sleeve body, can make things convenient for the installation and the dismantlement of sealing washer 8.

Example 7

As can be seen from fig. 1, the split drum tooth coupling of the present invention: the end socket is arranged on the gland 7, the end cover 6 is provided with the inner end socket, the inner end socket and the outer end socket are positioned through the inner end socket and the outer end socket and are connected through the fastener 5, and the sealing ring 8 is pressed in the end socket.

The gland 7 can be effectively positioned to the gland 6 with the spigot cooperation of the end cover 6, and a fastener is conveniently penetrated.

The split drum-shaped coupling has the advantages that: the driving end external tooth shaft sleeve and the driven end external tooth shaft sleeve are of split structures and are composed of shaft sleeve bodies and tooth sleeves, replacement is convenient, the material utilization rate is improved, and the maintenance cost is reduced; the inner gear sleeve is designed into a cylindrical shape, so that the material utilization rate is improved, the spare part cost is reduced, and the use and maintenance cost is reduced; under the condition of the same specification, larger tooth diameter can be obtained, and the bearing capacity of the product is improved; thirdly, the product standardization degree is improved, and the production period is shortened.

Claims

1. The utility model provides a split type cydariform tooth-like shaft coupling, it includes interior tooth cover (4), initiative end external tooth axle sleeve, driven end external tooth axle sleeve, controls two end covers (6), controls two gland (7), and interior tooth cover passes through the gear pair with the external tooth axle sleeve to be connected, controls two end covers (6) and will compress tightly respectively including two end covers (4) both ends, characterized by about two gland (7): the driving end external tooth shaft sleeve and the driven end external tooth shaft sleeve are of split structures, the driving end external tooth shaft sleeve comprises a driving end shaft sleeve body (1) and a gear sleeve (2), and the gear sleeve (2) is sleeved on the driving end shaft sleeve body (1) and is axially limited through a limiting element; the driven end external tooth shaft sleeve comprises a driven end shaft sleeve body (9) and a gear sleeve (2); the gear sleeve (2) is sleeved on the driven end shaft sleeve body (9) and is axially limited through a limiting element.

2. The split drum tooth coupling of claim 1, wherein: the gear sleeve (2) is connected with the shaft sleeve body in a key connection mode.

3. The split drum tooth coupling of claim 2, wherein: the key connection is involute spline, rectangular spline or flat key connection.

4. The split drum tooth coupling of claim 1, wherein: the connection mode of the gear sleeve (2) and the shaft sleeve body is jaw connection or flat hole connection.

5. The split drum tooth coupling of claim 1, wherein: the inner gear sleeve (4) is of an integral cylindrical structure.

6. The split drum tooth coupling of claim 1, wherein: the limiting element comprises a clamping ring (3), and the clamping ring (3) is arranged in a clamping groove at the inner end of the shaft sleeve body and tightly pressed on the inner end face of the gear sleeve (2).

7. The split drum tooth coupling of claim 1, wherein: the limiting element comprises a pressing plate (10), the pressing plate (10) is sleeved on the excircle of the inner end of the shaft sleeve body and tightly pressed on the inner end face of the gear sleeve (2), and the limiting element is connected with the shaft sleeve body through a screw.

8. The split drum tooth coupling of claim 1, wherein: it also comprises a left sealing ring and a right sealing ring (8); at least one sealing ring (8) is arranged between the left end cover (6) and the driving end shaft sleeve body (1) and between the right end cover (6) and the driven end shaft sleeve body (9).

9. The split drum tooth coupling of claim 1, wherein: the excircle B section and the excircle C section of the shaft sleeve body are transited through the conical section D section.

10. The split drum tooth coupling of claim 8, wherein: the inner spigot is arranged on the gland (7), the inner spigot is arranged on the end cover (6), the inner spigot and the outer spigot are positioned through the inner spigot and the outer spigot and are connected through the fastener (5), and the sealing ring (8) is pressed in the spigot.