CN219994159U - Cutting motor torque shaft of coal cutter - Google Patents
Cutting motor torque shaft of coal cutter Download PDFInfo
- Publication number
- CN219994159U CN219994159U CN202321184999.0U CN202321184999U CN219994159U CN 219994159 U CN219994159 U CN 219994159U CN 202321184999 U CN202321184999 U CN 202321184999U CN 219994159 U CN219994159 U CN 219994159U
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- CN
- China
- Prior art keywords
- external spline
- spline
- cutting motor
- shaft
- axostylus axostyle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000003245 coal Substances 0.000 title abstract description 22
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 238000005065 mining Methods 0.000 abstract description 14
- 230000005540 biological transmission Effects 0.000 abstract description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model discloses a torque shaft of a cutting motor of a coal cutter, which comprises a shaft rod, wherein one end of the shaft rod is provided with an internal spline, the middle part of the shaft rod is provided with an external spline, the external spline is of a barrel-shaped structure with a large middle diameter and small diameters at two ends, and a potential difference exists between the outer edge of the end part of the external spline and the corresponding outer edge of the middle part. The utility model has reasonable structural design, and the external spline is arranged into the barrel-shaped structure with wide middle and narrow two ends, so that the external spline can be reliably connected with the cutting motor, and the middle position of the external spline is taken as the shaft, so that the shaft rod deflects within a certain range, the internal spline at the end part of the shaft rod is conveniently meshed with the transmission gear of the coal mining machine, the operation is convenient, the production cost is reduced, and the production efficiency is improved.
Description
Technical Field
The utility model belongs to the technical field of coal mining machines, and particularly relates to a torque shaft of a cutting motor of a coal mining machine.
Background
When the coal mining machine works, the torque shaft is required to be inserted into the cutting motor, one end of the torque shaft is meshed with the transmission gear of the coal mining machine, the cutting motor drives the torque shaft to rotate, and then the coal mining machine is driven to work normally, and when an unexpected situation occurs, the torque pump is pulled to disconnect one end of the torque shaft from the transmission gear of the coal mining machine, so that the coal mining machine can stop working. However, the torque shaft is inevitably deflected and twisted in the use process, coaxiality of the shaft rod cannot be guaranteed, and people cannot observe the specific position relation between the internal spline and the transmission gear of the coal mining machine, so that the torque shaft is difficult to be meshed with the transmission gear of the coal mining machine after being pulled out, the shaft rod is required to be overhauled, maintained and replaced, the production cost is improved, and the production efficiency is reduced.
Disclosure of Invention
In order to solve the problems, the utility model provides a torque shaft of a cutting motor of a coal cutter.
The utility model is realized in the following way: the utility model provides a coal-winning machine cutting motor moment of torsion axle, includes the axostylus axostyle, the one end of axostylus axostyle is provided with the internal spline, and the axostylus axostyle is connected with the drive gear of coal-winning machine through the internal spline, the other end of axostylus axostyle is provided with the coupling sleeve, is connected with the pull handle to be convenient for pull out the axostylus axostyle, the middle part position of axostylus axostyle is provided with the external spline, and the axostylus axostyle passes through the external spline and is connected with the cutting motor together, the external spline is the barrel-shaped structure that the intermediate diameter is big, both ends diameter is little, the diameter at external spline both ends is the same, potential difference a between external spline tip outer fringe and the corresponding middle part outer fringe is 0.2 ~ 0.4mm, can guarantee the reliable connection of external spline and cutting motor, can make the axostylus axostyle deflect in certain limit again with the middle part position of external spline, and then conveniently make the internal spline of axostylus axostyle and the drive gear of coal-winning machine together.
Preferably, the diameter of the end part of the external spline is larger than that of the shaft rod, so that the reliable connection between the external spline and the cutting motor is ensured, and the friction between the shaft rod and the cutting motor is reduced.
Preferably, an unloading groove is formed in the shaft rod between the internal spline and the external spline, and when the transmission gear of the coal mining machine is clamped to cause overlarge torque of the shaft rod, the shaft rod is broken from the unloading groove to protect the coal mining machine.
The beneficial effects of the utility model are as follows: the utility model has reasonable structural design, and the external spline is arranged into the barrel-shaped structure with large middle diameter and small diameters at two ends, so that the external spline can be reliably connected with the cutting motor, and the shaft lever can deflect within a certain range by taking the middle position of the external spline as the shaft, thereby facilitating the engagement of the internal spline at the end part of the shaft lever and the transmission gear of the coal mining machine, facilitating the operation, reducing the production cost and improving the production efficiency.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic cross-sectional view of the present utility model;
FIG. 3 is an enlarged view of the outer edge and middle outer edge configuration of the male spline;
in the figure: 1. a shaft lever; 2. an internal spline; 3. a coupling sleeve; 4. an external spline; 5. and an unloading groove.
Detailed Description
In order to make the technical solution of the present utility model more clearly understood, the present utility model will be further described with reference to the accompanying drawings.
The utility model provides a coal cutter cutting motor torque shaft as shown in fig. 1-3, includes axostylus axostyle 1, the one end of axostylus axostyle 1 is provided with internal spline 2, axostylus axostyle 1 is connected with the drive gear of coal cutter through internal spline 2, the other end of axostylus axostyle 1 is provided with coupling sleeve 3, is connected with the pull handle to be convenient for pull out axostylus axostyle 1, the middle part position of axostylus axostyle 1 is provided with external spline 4, and axostylus axostyle 1 is in the same place with cutting motor through external spline 4, unloading groove 5 has been seted up on axostylus axostyle 1 between internal spline 2 and the external spline 4, when the drive gear of coal cutter is blocked and leads to axostylus axostyle 1 moment too big, axostylus axostyle 1 breaks from unloading groove 5, protects the coal cutter, external spline 4 is the barrel structure that the intermediate diameter is big, both ends diameter is little, the diameter of external spline 4 is the same, the potential difference a between external spline 4 tip outer fringe and the corresponding middle part outer fringe is 0.3mm, can guarantee that external spline 4 and cutting motor's reliable connection, can make the external spline 4 and cutting motor's the middle part position of external spline 4 be in the same as the axial spline 1, and the diameter of the axial axostylus axostyle 1 is convenient for the diameter that the end is in the axial axostyle 1.
The external spline 4 is meshed with a gear in the cutting motor, one end of the connecting sleeve 3 on the shaft lever 1 is shifted leftwards, one end of the internal spline 2 on the shaft lever 1 swings rightwards, one end of the connecting sleeve 3 on the shaft lever 1 is shifted upwards, one end of the internal spline 2 on the shaft lever 1 swings downwards, and the internal spline 2 is meshed with a transmission gear of the coal mining machine through multiple attempts.
The foregoing description is only of the preferred embodiments of the utility model, and all changes and modifications that come within the meaning and range of equivalency of the structures, features and principles of the utility model are therefore intended to be embraced therein.
Claims (3)
1. The utility model provides a coal-winning machine cutting motor moment of torsion axle, includes the axostylus axostyle, the one end of axostylus axostyle is provided with the internal spline, the other end of axostylus axostyle is provided with the coupling cover, the middle part position of axostylus axostyle is provided with the external spline, its characterized in that, the external spline is the barrel-shaped structure that the intermediate diameter is big, both ends diameter is little, the diameter at external spline both ends is the same, potential difference a between external spline tip outer fringe and the corresponding middle part outer fringe is 0.2 ~ 0.4mm.
2. The shearer cutting motor torque shaft of claim 1, wherein the diameter of the externally splined end is greater than the diameter of the shaft.
3. The shearer cutting motor torque shaft of claim 1, wherein an unloading groove is formed in the shaft rod between the inner spline and the outer spline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321184999.0U CN219994159U (en) | 2023-05-17 | 2023-05-17 | Cutting motor torque shaft of coal cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321184999.0U CN219994159U (en) | 2023-05-17 | 2023-05-17 | Cutting motor torque shaft of coal cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219994159U true CN219994159U (en) | 2023-11-10 |
Family
ID=88616232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321184999.0U Active CN219994159U (en) | 2023-05-17 | 2023-05-17 | Cutting motor torque shaft of coal cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219994159U (en) |
-
2023
- 2023-05-17 CN CN202321184999.0U patent/CN219994159U/en active Active
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