CN217732541U

CN217732541U - Screw lift with telescopic and rotary lead screw

Info

Publication number: CN217732541U
Application number: CN202220873765.6U
Authority: CN
Inventors: 孟自明
Original assignee: Lim Tec Langfang Transmission Equipment Co ltd
Current assignee: Lim Tec Langfang Transmission Equipment Co ltd
Priority date: 2022-04-15
Filing date: 2022-04-15
Publication date: 2022-11-04
Anticipated expiration: 2032-04-15

Abstract

The utility model discloses a screw telescopic and rotatory screw lift, including the lift main part, the lift input shaft has in the lift main part, and the lift input shaft can rotate, it has lead screw to run through in the lift main part, the one end of lift main part is provided with lock death structure, and when the lift input shaft rotated, lock death structure can prevent lead screw to rotate, and makes lead screw reciprocate, and lock death structure can rotate to drive lead screw rotates. The input shaft and the lifting screw rod are in matched transmission through a worm gear and a worm. The locking structure comprises a worm and gear pair speed reducer and a rotation prevention body, a spline shaft is mounted on the worm and gear pair speed reducer, a spline hole is formed in the rotation prevention body, the spline shaft is inserted into the spline hole, and the rotation prevention body is fixedly connected with the lifting screw. The utility model discloses in the implementation, not only can do the ascending and descending removal on the straight line, can also rotate, and then satisfied user's special demand.

Description

Screw lift with telescopic and rotary lead screw

Technical Field

The utility model belongs to the technical field of the screw lift, specifically be a screw lift that lead screw is scalable and rotatory.

Background

The spiral elevator is a common lifting device in industrial production, but the general spiral elevator has single function and cannot adapt to the special requirements of users.

Disclosure of Invention

To the above-mentioned condition, for overcoming prior art's defect, the utility model provides a screw lift that lead screw is scalable and rotatory, the effectual problem of having solved among the background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a telescopic and rotatory screw lift of lead screw, includes the lift main part, the lift input shaft has in the lift main part, and the lift input shaft can rotate, it has elevating screw to run through in the lift main part, the one end of lift main part is provided with dead lock structure, and when the lift input shaft rotated, dead lock structure can prevent elevating screw to rotate, and makes elevating screw reciprocate, and dead lock structure can rotate to drive elevating screw rotates.

Preferably, the input shaft of the elevator and the lifting screw are in fit transmission through a worm gear and a worm.

Preferably, the locking structure comprises a worm and gear pair speed reducer and a rotation prevention body, a key shaft is mounted on the worm and gear pair speed reducer, a spline hole is formed in the rotation prevention body, the spline shaft is inserted into the spline hole, and the rotation prevention body is fixedly connected with the lifting screw.

Preferably, the worm gear pair speed reducer is provided with a speed reducer input shaft.

Preferably, a rotation sensing member is fixedly connected to the rotation preventing body, and a sensing switch is arranged on the elevator main body.

Compared with the prior art, the beneficial effects of the utility model are that:

1) The utility model discloses when using, not only can do the ascending and descending removal on the straight line, can also rotate, and then satisfied user's special demand.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic view of a side structure of fig. 1 according to the present invention;

fig. 3 is a schematic diagram of the combination of the elevator screw and the elevator input shaft of the present invention.

In the figure: 1. lifting a screw rod; 2. an elevator main body; 3. an elevator input shaft; 4. an inductive switch; 5. Preventing rotation; 6. a rotation sensing member; 7. a spline shaft; 8. a worm gear reducer; 9. the input shaft of the speed reducer.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments; based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Given by fig. 1-3, the utility model discloses a screw telescopic and rotatory screw lift, including lift main part 2, lift main part 2 is last to have lift input shaft 3, and lift input shaft 3 can rotate, has run through lift screw 1 in the lift main part 2, and the one end of lift main part 2 is provided with the dead structure of lock, and when lift input shaft 3 rotated, the dead structure of lock can prevent lift screw 1 to rotate, and makes lift screw 1 reciprocate, and the dead structure of lock can rotate to drive lift screw 1 and rotate. The worm is fixedly connected to the elevator input shaft 3, the worm wheel is sleeved outside the elevator screw rod 1, and the worm wheel is in threaded connection with the elevator screw rod 1, so that the elevator screw rod 1 can move up and down when the elevator input shaft 3 rotates.

The elevator input shaft 3 and the lifting screw rod 1 are in fit transmission through a worm gear and a worm.

The locking structure comprises a worm and gear pair speed reducer 8 and an anti-rotation body 5, a spline shaft 7 is mounted on the worm and gear pair speed reducer 8, a spline hole is formed in the anti-rotation body 5, the spline shaft 7 is inserted into the spline hole, and the anti-rotation body 5 is fixedly connected with the lifting screw 1.

The worm gear pair speed reducer 8 is provided with a speed reducer input shaft 9.

A rotation sensing part 6 is fixedly connected to the rotation preventing body 5, and a sensing switch 4 is arranged on the elevator main body 2.

The elevator main body 2 of the device is self-locking, the anti-rotation body 5 and the lifting screw 1 are firmly connected into a whole through a screw, the inner hole of the anti-rotation body 5 is a spline hole and is matched with an output spline shaft 7 of a worm gear pair speed reducer 8, the spline hole also slides relatively along the spline shaft 7 along with the telescopic motion of the lifting screw 1, and in addition, the anti-rotation body 5 and a rotary induction part 6 fixed with the anti-rotation body are integrated, so that a feedback system of the motion state and the position of the screw in the device is formed. When the lifting screw rod 1 moves to a specific position (can be an encoder on the motor, can also be a displacement sensor or an induction switch 4 and the like as feedback), the lifting input shaft 3 stops rotating, and the lifting screw rod 1 stops moving; the input shaft 9 of the speed reducer is driven to rotate, the spline shaft 7 rotates, the spline shaft drives the rotation preventing body 5 and the lifting screw rod 1 to rotate together, and when the spline shaft rotates to a specific position, the induction switch 4 is triggered, and the input shaft 9 of the speed reducer stops rotating; at the moment, the elevator can not only keep the state unchanged, but also return to the original way after moving linearly to a certain degree; or directly returning in the original way.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a screw lift that lead screw is scalable and rotatory, includes lift main part (2), its characterized in that: have lift input shaft (3) on lift main part (2), lift input shaft (3) can rotate, run through in lift main part (2) and have lead screw (1), the one end of lift main part (2) is provided with dead lock structure, and when lift input shaft (3) rotated, dead lock structure can prevent lead screw (1) to rotate, and makes lead screw (1) reciprocate, and dead lock structure can rotate to drive lead screw (1) and rotate.

2. A screw retractable and rotatable screw elevator as set forth in claim 1, wherein: the elevator input shaft (3) and the lifting screw rod (1) are in matched transmission through a worm gear and a worm.

3. A screw elevator with a retractable and rotatable screw as set forth in claim 1, wherein: the locking structure comprises a worm-gear pair speed reducer (8) and an anti-rotation body (5), wherein a spline shaft (7) is installed on the worm-gear pair speed reducer (8), a spline hole is formed in the anti-rotation body (5), the spline shaft (7) is inserted into the spline hole, and the anti-rotation body (5) is fixedly connected with the lifting screw (1).

4. A screw retractable and rotatable screw elevator as set forth in claim 3, wherein: the worm gear pair speed reducer (8) is provided with a speed reducer input shaft (9).

5. A screw elevator with a retractable and rotatable screw as set forth in claim 3, wherein: the anti-rotation body (5) is fixedly connected with a rotation sensing part (6), and the elevator main body (2) is provided with a sensing switch (4).