CN215919831U - Double-key positioning device for motor shaft of traction machine - Google Patents
Double-key positioning device for motor shaft of traction machine Download PDFInfo
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- CN215919831U CN215919831U CN202122091161.4U CN202122091161U CN215919831U CN 215919831 U CN215919831 U CN 215919831U CN 202122091161 U CN202122091161 U CN 202122091161U CN 215919831 U CN215919831 U CN 215919831U
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Abstract
The utility model relates to a double-key positioning device for a motor shaft of a traction machine, which comprises a base, a first fixed seat and a second fixed seat, wherein the first fixed seat is fixed on the base; a rotating seat is arranged in the first fixed seat; a gear ring is arranged on the rotating seat; a bearing seat is arranged on the first fixed seat; a rotating rod is arranged in the bearing seat; one end of the rotating rod is provided with a gear which is meshed with the gear ring; a chuck is arranged on one side of the rotating seat; a positioning disc is fixed on one side of the rotating seat; two positioning holes are formed in the positioning plate; the angle between the two positioning holes is 180 degrees; one side of the positioning disc is provided with a supporting seat; a positioning rod matched with the positioning hole penetrates through the supporting seat; one side of the second fixed seat close to the first fixed seat is rotatably connected with a clamping claw seat; a pair of cylinders is symmetrically arranged on the outer side of the clamping jaw seat; two cylinders are connected with opposite clamping jaws. According to the utility model, the positioning rods are matched with the positioning holes, so that the two key grooves of the machined motor shaft are positioned, the symmetry accuracy of the key grooves is higher, and the working efficiency is improved.
Description
Technical Field
The utility model relates to the technical field of motor shaft machining and manufacturing, in particular to a double-key positioning device for a tractor motor shaft.
Background
When a motor shaft for the permanent magnet synchronous escalator tractor is processed, two symmetrical key grooves need to be processed at the shaft end of the motor shaft, so that the power of the motor can be conveniently and effectively conveyed out. The general processing mode is that the motor shaft is clamped by a dividing head triangular chuck to be processed on a milling machine, and after a first key groove is milled, the motor shaft is rotated by 180 degrees to be processed into a second key groove. The method has low processing precision and is difficult to meet the requirement of high-precision occasions.
It is therefore desirable to provide a positioning device that can accurately rotate the motor shaft through 180.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a double-key positioning device for a motor shaft of a traction machine, which can accurately rotate the motor shaft by 180 degrees.
In order to achieve the purpose of the utility model, a double-key positioning device of a tractor motor shaft is provided, which comprises a base, a first fixed seat and a second fixed seat;
a rotating seat is arranged in the first fixed seat; the rotating seat is provided with a gear ring; a bearing seat is arranged on the first fixed seat; a rotating rod is arranged in the bearing seat; one end of the rotating rod is provided with a gear meshed with the gear ring; a chuck is arranged on one side of the rotating seat;
a positioning disc is fixed on one side of the rotating seat; two positioning holes are formed in the positioning plate; the angle between the two positioning holes is 180 degrees; a supporting seat is arranged on one side of the positioning disc; a positioning rod matched with the positioning hole penetrates through the supporting seat; through holes are formed in the rotating seat, the chuck and the positioning disc on the same axial line;
the second fixed seat is arranged on one side of the first fixed seat; one side of the second fixed seat, which is close to the first fixed seat, is rotatably connected with a clamping jaw seat; the clamping jaw seat and the chuck are on the same axial lead; a pair of cylinders is symmetrically arranged on the outer side of the clamping jaw seat; the two cylinders are connected with opposite clamping jaws;
preferably, the base is provided with two guide rails; a screw rod is arranged between the guide rails; one end of the screw rod is connected with a driving motor; the guide rail is provided with a sliding block; the sliding block is connected with the lead screw; the first fixed seat is installed on the sliding block.
Preferably, the positioning rod is provided with an external thread; the supporting seat is internally provided with an internal thread matched with the positioning rod.
Preferably, a return spring is sleeved in the supporting seat on the positioning rod; one end of the reset spring is connected with the positioning rod, and the other end of the reset spring is connected with the supporting seat.
Preferably, one end of the rotating rod, which is far away from the gear, is provided with a knob.
The working principle is as follows: the utility model provides a hauler motor shaft double key positioner, according to motor shaft length, the starter motor, the position of the first fixing base of adjustment, pass the motor shaft chuck, rotate seat and positioning disk, the one end of motor shaft is between two clamping jaws, use the chuck earlier to fix the motor shaft, at the actuating cylinder, the cylinder promotes the clamping jaw with motor shaft end fixing, insert the locating lever in the locating hole, later in the other one end processing keyway of motor shaft, after processing, take out the locating lever, rotate the knob, make and rotate the seat and rotate, thereby make the positioning disk rotate, the positioning disk rotates 180 backs, promote or rotate the locating lever and insert another locating hole, can make the motor shaft accurately rotate 180 like this, later in processing the motor shaft.
Compared with the prior art, the double-key positioning device for the motor shaft of the traction machine has the following advantages that:
(1) the motor shaft can be accurately rotated for 180 degrees by matching the positioning rod with the positioning hole;
(2) the reset spring or the positioning rod is connected with the supporting seat through threads, so that the positioning rod can be prevented from shaking and withdrawing in the processing process;
(3) the design is simple, easy to use, and low in manufacturing cost.
Drawings
FIG. 1 is a schematic front view of the present invention;
FIG. 2 is a rear view of the present invention;
FIG. 3 is a partial cross-sectional view of a positioning rod installation of the present invention.
Detailed Description
The utility model is further described below with reference to the following figures and specific examples.
As shown in fig. 1-2, a double-key positioning device for a shaft of a traction machine comprises a base 1, a first fixing seat 21 and a second fixing seat 31;
two guide rails 11 are arranged on the base 1; a screw rod 12 is arranged between the guide rails 11; one end of the screw rod 12 is connected with a driving motor 13; a slide block 14 is arranged on the guide rail 11; the sliding block 14 is connected with the lead screw 12, and the lead screw 12 is rotated by controlling the driving motor 13, so that the sliding block 14 is controlled to move; the first fixed seat 21 is mounted on the sliding block 14;
a rotating seat 22 is installed in the first fixed seat 21 through a bearing, and the rotating seat 22 can rotate in the first fixed seat 21; the rotating seat 22 is provided with a gear ring 23; a bearing seat 24 is arranged on the first fixed seat 21; a rotating rod 25 is arranged in the bearing seat 24; a gear 26 engaged with the gear ring 23 is installed at one end of the rotating rod 25, the gear 26 can be rotated by rotating the rotating rod 25, and the gear 26 is engaged with the gear ring 23, so that the rotating seat 22 rotates; a chuck 4 is arranged on one side of the rotating seat 22, and a motor shaft is fixed through the chuck 4;
a positioning disc 51 is fixed on one side of the rotating seat 22; two positioning holes 52 are formed in the positioning disc 51; the angle between the two positioning holes 52 is 180 degrees; a supporting seat 53 is arranged on one side of the positioning disc 51; a positioning rod 54 matched with the positioning hole 52 penetrates through the supporting seat 53, the positioning rod 54 can be moved to one side of the positioning disc 51 by pushing the positioning rod 54, the positioning rod 54 is inserted into the positioning hole 52, so that the positioning disc 51 cannot rotate, the rotating rod 25 is rotated after the positioning rod 54 is pulled out, the positioning disc 51 rotates along with the rotating rod, and the positioning disc 51 rotates 180 degrees, then the positioning rod 54 is pushed to be inserted into the other positioning hole 52, so that the rotating seat 22 is positioned; through holes are formed in the rotating seat 22, the chuck 4 and the positioning disc 51 on the same axial line, so that a motor shaft can sequentially penetrate through the through holes;
the second fixed seat 31 is arranged on one side of the first fixed seat 21; a clamping jaw seat 32 is rotatably connected to one side of the second fixed seat 31 close to the first fixed seat 21; the clamping jaw seat 32 and the chuck 4 have the same axial lead; a pair of cylinders 33 are symmetrically arranged on the outer side of the clamping jaw seat 32; two cylinders 33 are connected with opposite clamping jaws 34, and the motor shaft can be horizontally fixed through the clamping jaws 34 and prevented from inclining when the key groove is machined.
In this embodiment, the positioning rod 54 is provided with an external thread; the supporting seat 53 is internally provided with an internal thread matched with the positioning rod 54, the positioning rod 54 is in threaded connection with the supporting seat 53, and the positioning rod 54 can be inserted into the positioning hole 52 by rotating the positioning rod 54, so that the positioning rod 54 can be prevented from withdrawing in the machining process.
As shown in fig. 3, another structure for mounting the positioning rod 54 is that a return spring 55 is sleeved on the positioning rod 54 in the supporting seat 53; one end of the reset spring 55 is connected with the positioning rod 54, the other end of the reset spring is connected with the supporting seat 53, when the positioning rod 54 is inserted into the positioning hole 52, the reset spring 55 is in a normal state, when the positioning rod 54 is pulled out of the positioning hole 52, the reset spring 55 is compressed, the positioning rod 54 is inserted into the other positioning hole 52, and the reset spring 55 is restored to the normal state again, so that the positioning rod 54 can be prevented from withdrawing in the machining process, the rotating seat 22 is prevented from shaking, and the motor shaft is prevented from being damaged.
In this embodiment, a knob 251 is disposed at one end of the rotating rod 25, which is far away from the gear 26, so as to facilitate rotation of the rotating rod 25.
The use method of the utility model comprises the following steps: according to the length of the motor shaft, the motor is started, the position of the first fixing seat 21 is adjusted, the motor shaft penetrates through the chuck 4, the rotating seat 22 and the positioning disc 51, one end of the motor shaft is located between the two clamping jaws 34, the motor shaft is fixed by using the chuck 4, the air cylinder 33 is started, the air cylinder 33 pushes the clamping jaws 34 to fix the end portion of the motor shaft, the positioning rod 54 is inserted into the positioning hole 52, a key groove is machined in the other end of the motor shaft, the positioning rod 54 is taken out after machining, the knob 251 is rotated to enable the rotating seat 22 to rotate, the positioning disc 51 is rotated, and after the positioning disc 51 rotates 180 degrees, the positioning rod 54 is pushed or rotated to be inserted into the other positioning hole 52, so that the motor shaft can accurately rotate 180 degrees, and then the motor shaft is machined.
While the preferred embodiments of the present invention have been described in detail, it will be understood by those skilled in the art that the utility model is not limited to the embodiments disclosed, but is capable of various modifications and substitutions without departing from the spirit of the utility model.
Claims (5)
1. A double-key positioning device for a motor shaft of a traction machine is characterized by comprising a base, a first fixed seat and a second fixed seat;
a rotating seat is arranged in the first fixed seat; the rotating seat is provided with a gear ring; a bearing seat is arranged on the first fixed seat; a rotating rod is arranged in the bearing seat; one end of the rotating rod is provided with a gear meshed with the gear ring; a chuck is arranged on one side of the rotating seat;
a positioning disc is fixed on one side of the rotating seat; two positioning holes are formed in the positioning plate; the angle between the two positioning holes is 180 degrees; a supporting seat is arranged on one side of the positioning disc; a positioning rod matched with the positioning hole penetrates through the supporting seat; through holes are formed in the rotating seat, the chuck and the positioning disc on the same axial line;
the second fixed seat is arranged on one side of the first fixed seat; one side of the second fixed seat, which is close to the first fixed seat, is rotatably connected with a clamping jaw seat; a pair of cylinders is symmetrically arranged on the outer side of the clamping jaw seat; two cylinders are connected with opposite clamping jaws.
2. The double key positioning device for the shaft of a traction machine according to claim 1, wherein the base is provided with two guide rails; a screw rod is arranged between the guide rails; one end of the screw rod is connected with a driving motor; the guide rail is provided with a sliding block; the sliding block is connected with the lead screw; the first fixed seat is installed on the sliding block.
3. The double-key positioning device for the shaft of a traction machine according to claim 1, wherein the positioning rod is provided with an external thread; the supporting seat is internally provided with an internal thread matched with the positioning rod.
4. The double key positioning device for the shaft of a traction machine as claimed in claim 1, wherein the positioning rod is provided with a return spring inside the supporting seat; one end of the reset spring is connected with the positioning rod, and the other end of the reset spring is connected with the supporting seat.
5. The double key positioning device for the shaft of a traction machine as claimed in claim 1, wherein the rotating rod is provided with a knob at an end away from the gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122091161.4U CN215919831U (en) | 2021-08-31 | 2021-08-31 | Double-key positioning device for motor shaft of traction machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122091161.4U CN215919831U (en) | 2021-08-31 | 2021-08-31 | Double-key positioning device for motor shaft of traction machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215919831U true CN215919831U (en) | 2022-03-01 |
Family
ID=80421912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122091161.4U Active CN215919831U (en) | 2021-08-31 | 2021-08-31 | Double-key positioning device for motor shaft of traction machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215919831U (en) |
-
2021
- 2021-08-31 CN CN202122091161.4U patent/CN215919831U/en active Active
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