CN211405831U - Stepping motor with good screw rod lubricating property - Google Patents
Stepping motor with good screw rod lubricating property Download PDFInfo
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- CN211405831U CN211405831U CN202020080615.0U CN202020080615U CN211405831U CN 211405831 U CN211405831 U CN 211405831U CN 202020080615 U CN202020080615 U CN 202020080615U CN 211405831 U CN211405831 U CN 211405831U
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- screw rod
- end cover
- sleeve
- stepping motor
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Abstract
The utility model discloses a stepping motor with good screw rod lubricity, which comprises a stator (1), a rotor (2), a front end cover (3), a rear end cover (4), a rotating shaft (5) and a screw rod (6), wherein the front end cover (3) is fixed at the front end of the stator (1), and the rear end cover (4) is fixed at the tail end of the stator (1); pivot (5) rotate and drive lead screw (6) circumferential direction, its characterized in that: the screw rod structure is characterized in that a connecting sleeve (7) is arranged on the front end cover (3), the screw rod (6) axially penetrates through a center hole of the connecting sleeve (7), a positioning guide sleeve (8) is arranged in the connecting sleeve (7), the center hole of the positioning guide sleeve (8) is a threaded hole in threaded connection with the screw rod (6), and a lubricating layer covers the outer wall of the screw rod (6). The stepping motor is additionally provided with the lubricating layer on the surface of the screw rod, so that the corrosion resistance and the lubricating capability of the surface are improved, the service life of the motor is prolonged, and the running noise of the motor is reduced.
Description
Technical Field
The utility model relates to the technical field of motors, a step motor that lead screw lubricity is good specifically says.
Background
At present, a stepping motor is provided, which comprises a stator, a rotor, a front end cover, a rear end cover, a rotating shaft and a screw rod, wherein the front end cover is fixed at the front end of the stator, and the rear end cover is fixed at the tail end of the stator; the rotor is positioned in the stator, coils are wound in the front end cover and the rear end cover, the rotating shaft is fixed in a central hole of the rotor, the front end of the rotating shaft is rotationally connected with the front end cover through one bearing, and the rear end of the rotating shaft is rotationally connected with the rear end cover through the other bearing; the inner end of the screw rod is connected with the front end of the rotating shaft, and the rotating shaft rotates and drives the screw rod to rotate in the circumferential direction. The screw rod of the stepping motor with the structure is made of wear-resistant metal materials, and the surface of the screw rod is poor in corrosion resistance and lubricating capability when the screw rod works for a long time, so that the practical service life of the motor is shortened, and the running noise of the motor is increased.
Disclosure of Invention
The to-be-solved technical problem of the utility model is to provide an increase the lubricant film on the surface of lead screw to increase surperficial resistance to corrosion and the lubricating ability, thereby improve the life of motor, reduce the step motor that the lead screw lubricity is good of the running noise of motor.
The technical scheme of the utility model is that a stepping motor with a structure of good screw rod lubricating property is provided, which comprises a stator, a rotor, a front end cover, a rear end cover, a rotating shaft and a screw rod, wherein the front end cover is fixed at the front end of the stator, and the rear end cover is fixed at the tail end of the stator; the rotor is positioned in the stator, coils are wound in the front end cover and the rear end cover, the rotating shaft is fixed in a central hole of the rotor, the front end of the rotating shaft is rotationally connected with the front end cover through one bearing, and the rear end of the rotating shaft is rotationally connected with the rear end cover through the other bearing; the inner of lead screw is connected with the front end of pivot, the pivot rotates and drives lead screw circumferential direction, its characterized in that: the front end cover is provided with a connecting sleeve, the screw rod axially penetrates through a center hole of the connecting sleeve, a positioning guide sleeve is arranged in the connecting sleeve, the center hole of the positioning guide sleeve is a threaded hole in threaded connection with the screw rod, and the outer wall of the screw rod is covered with a lubricating layer.
The front end of the screw rod is provided with a screw rod, and the outer diameter of the screw rod is smaller than that of the screw rod.
The outer wall of the screw rod in the connecting sleeve is provided with a clamp spring for limiting axial sliding of the screw rod, and the outer diameter of the clamp spring is smaller than the inner diameter of the connecting sleeve and larger than the inner diameter of the positioning guide sleeve.
The positioning guide sleeve is circumferentially and axially limited on the side wall of the connecting sleeve.
The connecting sleeve is in threaded connection with the front end cover and is locked and fixed by a nut of the front end cover.
The central hole of the rotor is fixed with a shaft sleeve, the rotating shaft is fixed in the central hole of the shaft sleeve, and the tail end of the shaft sleeve extends out of the rear end cover.
And a hand wheel is fixed on the outer wall of the shaft sleeve extending out of the rear end cover and synchronously rotates with the shaft sleeve.
The lubricating layer is a Teflon layer.
After the structure more than adopting, the utility model has the advantages of it is following: the connecting sleeve is arranged on the front end cover, the screw rod axially penetrates through a center hole of the connecting sleeve, the positioning guide sleeve is arranged in the connecting sleeve, the center hole of the positioning guide sleeve is a threaded hole in threaded connection with the screw rod, a lubricating layer covers the outer wall of the screw rod, and after the lubricating layer is added on the outer wall of the screw rod, the screw rod is in threaded connection with the positioning guide sleeve, the lubricating layer of the screw rod is in contact with the threaded hole of the positioning guide sleeve, so that the screw rod body is prevented from being in contact with the threaded hole of the positioning guide sleeve, the corrosion resistance and the lubricating capacity of the surface are improved, the service life of the motor.
As an improvement, the front end of the screw rod is provided with a screw rod, and the outer diameter of the screw rod is smaller than that of the screw rod, so that the screw rod is conveniently and directly connected and fixed with the connected part in a threaded manner.
As an improvement, the outer wall of the screw rod in the connecting sleeve is provided with a clamp spring for limiting the axial sliding of the screw rod, the outer diameter of the clamp spring is smaller than the inner diameter of the connecting sleeve and larger than the inner diameter of the positioning guide sleeve, and the clamp spring can limit the axial sliding of the screw rod.
As an improvement, the positioning guide sleeve is circumferentially and axially limited on the side wall of the connecting sleeve, and the positioning guide sleeve plays a role in guiding the axial sliding of the belt rod.
As an improvement, the connecting sleeve is in threaded connection with the front end cover and is locked and fixed by a nut of the front end cover, and the mounting and the dismounting are convenient.
As an improvement, a shaft sleeve is fixed in a center hole of the rotor, the rotating shaft is fixed in the center hole of the shaft sleeve, and the tail end of the shaft sleeve extends out of the rear end cover, so that the stability of the rotor is improved, and the abrasion of the rotor can be reduced.
As an improvement, a hand wheel is fixed on the outer wall of a shaft sleeve extending out of the rear end cover, the hand wheel and the shaft sleeve rotate synchronously, and the hand wheel plays a role in manually rotating the rotor and the screw rod.
The lubricating layer is a Teflon layer, so that the material can be purchased conveniently, and the cost is low.
Drawings
Fig. 1 is a schematic sectional view of the stepping motor with a lead screw having good lubricity.
Fig. 2 is a left side view of fig. 1.
Shown in the figure: 1. stator, 2, rotor, 3, front end housing, 4, rear end housing, 5, pivot, 6, lead screw, 7, adapter sleeve, 8, location guide pin bushing, 9, screw rod, 10, jump ring, 11, axle sleeve, 12, hand wheel.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
As shown in fig. 1-2, the stepping motor with good screw rod lubricity of the present invention comprises a stator 1, a rotor 2, a front end cover 3, a rear end cover 4, a rotating shaft 5 and a screw rod 6, wherein the front end cover 3 is fixed at the front end of the stator 1, and the rear end cover 4 is fixed at the tail end of the stator 1; the rotor 2 is located inside the stator 1, coils are wound in the front end cover 3 and the rear end cover 4, the rotating shaft 5 is fixed in a central hole of the rotor 2, the rotating shaft 5 is fixed in a central hole of the shaft sleeve 11, and the tail end of the shaft sleeve 11 extends out of the rear end cover 4.
The inner end of the screw rod 6 is connected with the front end of the rotating shaft 5, and the rotating shaft 5 rotates and drives the screw rod 6 to rotate circumferentially. A shaft sleeve 11 is fixed in the central hole of the rotor 2. The front end of the screw rod 6 is rotationally connected with the front end cover 3 through a bearing, that is, the inner ring of the bearing at the front end is fixed with the shaft sleeve, and the outer ring of the bearing at the front end is fixed with the front end cover 3. The rotation of the rotating shaft 5 and the driving of the screw rod 6 to rotate circumferentially means that the inner ring of the other bearing at the rear end is fixed with the shaft sleeve, and the outer ring is fixed with the rear end cover 4.
The front end cover 3 is provided with a connecting sleeve 7, the screw rod 6 axially penetrates through a center hole of the connecting sleeve 7, a positioning guide sleeve 8 is arranged in the connecting sleeve 7, the center hole of the positioning guide sleeve 8 is a threaded hole in threaded connection with the screw rod 6, and the outer wall of the screw rod 6 is covered with a lubricating layer. The lubricating layer is a Teflon layer, namely a Teflon coating is adopted. When the screw rod is in threaded connection with the positioning guide sleeve, the lubricating layer of the screw rod is in contact with the threaded hole of the positioning guide sleeve, and the screw rod body is prevented from being in contact with the threaded hole of the positioning guide sleeve, so that the corrosion resistance and the lubricating capacity of the surface are improved, the service life of the motor is prolonged, and the running noise of the motor is reduced.
The front end of the screw rod 6 is provided with a screw rod 9, so that the screw rod 9 can be directly and fixedly connected with a connected part in a threaded manner, the outer diameter of the screw rod 9 is smaller than that of the screw rod 6, namely, a step is arranged at the position, and the screw rod is convenient to axially limit after being screwed.
The outer wall of the screw rod 6 positioned in the connecting sleeve 7 is provided with a snap spring 10 for limiting axial sliding of the screw rod, the outer diameter of the snap spring 10 is smaller than the inner diameter of the connecting sleeve 7 and larger than the inner diameter of the positioning guide sleeve 8, the snap spring 10 is driven to synchronously axially slide when the screw rod 6 axially slides, abuts against the end surface of the positioning guide sleeve 8 when the screw rod slides leftwards to be limited, and abuts against the end surface of the shaft sleeve 11 when the screw rod slides rightwards to be limited.
The positioning guide sleeve 8 is circumferentially and axially limited on the side wall of the connecting sleeve 7.
The connecting sleeve 7 is in threaded connection with the front end cover 3 and is locked and fixed by a nut 13 of the front end cover 3, and the dismounting is convenient.
A hand wheel 12 is fixed on the outer wall of the shaft sleeve 11 extending out of the rear end cover 4, the hand wheel 12 and the shaft sleeve 11 rotate synchronously, and when the lead screw 6 is clamped or powered off, the hand wheel 12 can be rotated, so that the lead screw can move back.
Claims (8)
1. A stepping motor with a good screw rod lubricating property comprises a stator (1), a rotor (2), a front end cover (3), a rear end cover (4), a rotating shaft (5) and a screw rod (6), wherein the front end cover (3) is fixed at the front end of the stator (1), and the rear end cover (4) is fixed at the tail end of the stator (1); the rotor (2) is positioned inside the stator (1), coils are wound in the front end cover (3) and the rear end cover (4), the rotating shaft (5) is fixed in a central hole of the rotor (2), the front end is rotationally connected with the front end cover (3) through one bearing, and the rear end is rotationally connected with the rear end cover (4) through the other bearing; the inner of lead screw (6) is connected with the front end of pivot (5), pivot (5) rotate and drive lead screw (6) circumferential direction, its characterized in that: the screw rod structure is characterized in that a connecting sleeve (7) is arranged on the front end cover (3), the screw rod (6) axially penetrates through a center hole of the connecting sleeve (7), a positioning guide sleeve (8) is arranged in the connecting sleeve (7), the center hole of the positioning guide sleeve (8) is a threaded hole in threaded connection with the screw rod (6), and a lubricating layer covers the outer wall of the screw rod (6).
2. The stepping motor with good screw rod lubricity according to claim 1, characterized in that: the front end of the screw rod (6) is provided with a screw rod (9), and the outer diameter of the screw rod (9) is smaller than that of the screw rod (6).
3. The stepping motor with good screw rod lubricity according to claim 1, characterized in that: the outer wall of the screw rod (6) positioned in the connecting sleeve (7) is provided with a clamp spring (10) for limiting the axial sliding of the screw rod, and the outer diameter of the clamp spring (10) is smaller than the inner diameter of the connecting sleeve (7) and larger than the inner diameter of the positioning guide sleeve (8).
4. The stepping motor with good screw rod lubricity according to claim 1, characterized in that: the positioning guide sleeve (8) is circumferentially and axially limited on the side wall of the connecting sleeve (7).
5. The stepping motor with good screw rod lubricity according to claim 1, characterized in that: the connecting sleeve (7) is in threaded connection with the front end cover (3) and is locked and fixed by a nut (13) of the front end cover (3).
6. The stepping motor with good screw rod lubricity according to claim 1, characterized in that: a shaft sleeve (11) is fixed in a center hole of the rotor (2), the rotating shaft (5) is fixed in the center hole of the shaft sleeve (11), and the tail end of the shaft sleeve (11) extends out of the rear end cover (4).
7. The stepping motor with good screw rod lubricity of claim 6, wherein: a hand wheel (12) is fixed on the outer wall of the shaft sleeve (11) extending out of the rear end cover (4), and the hand wheel (12) and the shaft sleeve (11) rotate synchronously.
8. The stepping motor with good screw rod lubricity according to claim 1, characterized in that: the lubricating layer is a Teflon layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020080615.0U CN211405831U (en) | 2020-01-14 | 2020-01-14 | Stepping motor with good screw rod lubricating property |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020080615.0U CN211405831U (en) | 2020-01-14 | 2020-01-14 | Stepping motor with good screw rod lubricating property |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211405831U true CN211405831U (en) | 2020-09-01 |
Family
ID=72217687
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020080615.0U Active CN211405831U (en) | 2020-01-14 | 2020-01-14 | Stepping motor with good screw rod lubricating property |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211405831U (en) |
-
2020
- 2020-01-14 CN CN202020080615.0U patent/CN211405831U/en active Active
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