CN217115841U

CN217115841U - Safe adjustable motor

Info

Publication number: CN217115841U
Application number: CN202220902030.1U
Authority: CN
Inventors: 李�根
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-04-19
Filing date: 2022-04-19
Publication date: 2022-08-02
Anticipated expiration: 2032-04-19

Abstract

The utility model discloses a safe adjustable motor, which comprises a motor shell, a screw rod arranged in the motor shell and a force output shaft head connected with the front end of the screw rod, wherein the rear end of the screw rod is exposed out of the motor shell, and the force output shaft head and the screw rod synchronously move in a straight line without synchronous rotation; the front end of the screw rod is provided with a ball head, and the rear end of the screw rod is provided with a manual adjusting structure; a first limiting plane is arranged in an output port inner cavity of the motor shell; the front end of the force output shaft head is provided with a load joint, the rear end of the force output shaft head is provided with a ball groove matched with the ball head in shape, the shaft body of the force output shaft head is matched with the inner cavity of the output port of the motor shell, and the upper part and the lower part of the shaft body of the force output shaft head are provided with two second limiting planes.

Description

Safe adjustable motor

Technical Field

The utility model belongs to the technical field of the motor, concretely relates to safe adjustable motor.

Background

As shown in fig. 1, the conventional common permanent magnet lead screw stepping motor includes a motor housing a1, a connection terminal a2, a lead screw A3, and a load connector a4 provided at an end of the lead screw A3;

the common permanent magnet screw stepping motor has the working steps that firstly, after a wiring terminal A2 is connected with electricity, a permanent magnet mechanism in a motor shell A1 rotates under the action of an electromagnetic field to drive a screw rod A3 to rotate, thirdly, the screw rod A3 rotates along a thread and simultaneously moves linearly, and fourthly, a telescopic push-pull force is generated at a load joint A4. Therefore, the normal working steps of the permanent magnet type screw rod stepping motor are as follows: (III) III.

In the above working steps, the following disadvantages exist:

1. when the permanent magnet mechanism stops working, the load joint A4 is generally connected with a load, if the load is stressed, a rotating force is possibly generated at the load joint A4, so that the screw rod A3 moves, the motor cannot be positioned after stopping working, and potential safety hazards are generated; the permanent magnet screw stepping motor can work in sequence of (a) and (b) under the condition that a wiring terminal A2 of a wiring terminal is not powered, and after the permanent magnet screw stepping motor stops powering due to the working of the steps, the position of a load cannot be fixed and can move uncontrollably, so that potential safety hazards can be caused;

2. when the permanent magnet mechanism is out of control and has a fault, the thrust generated at the load joint A4 pushes the load to break, the force needs to be released in time, the permanent magnet mechanism has a fault and cannot be released, and therefore the load joint A4 cannot be managed safely, and inevitable safety accidents are caused.

SUMMERY OF THE UTILITY MODEL

To the problem that the above-mentioned background art provided, the utility model aims at: aims to provide a safe adjustable motor.

In order to realize the technical purpose, the utility model discloses a technical scheme as follows:

a safe adjustable motor comprises a motor shell, a screw rod arranged in the motor shell and a force output shaft head connected with the front end of the screw rod, wherein the rear end of the screw rod is exposed out of the motor shell, and the force output shaft head and the screw rod synchronously move in a linear mode without synchronous rotation;

the front end of the screw rod is provided with a ball head, and the rear end of the screw rod is provided with a manual adjusting structure;

a first limiting plane is arranged in an output port inner cavity of the motor shell;

the front end of the force output shaft head is provided with a load joint, the rear end of the force output shaft head is provided with a ball groove matched with the ball head in shape, the shaft body of the force output shaft head is matched with the inner cavity of the output port of the motor shell, and the shaft body of the force output shaft head is provided with two second limiting planes up and down.

Further limited, the motor shell is provided with a wiring terminal and a permanent magnet mechanism.

Further defined, the manual adjustment structure is a cross-slot structure.

Further, the manual adjusting structure is a straight groove structure.

Further defined, the manual adjustment structure is a rotating handle structure.

The utility model has the advantages that:

1. the problem that potential safety hazards are caused due to the fact that the screw rod cannot be positioned because of the influence of loads after the motor stops working is effectively solved;

2. the problems that the permanent magnet mechanism fails, force cannot be released, load joints cannot be safely managed, and inevitable safety accidents are possibly caused are effectively solved.

Drawings

The present invention can be further illustrated by the non-limiting examples given in the accompanying drawings;

FIG. 1 is a schematic structural diagram of a common permanent magnet screw stepping motor;

fig. 2 is a schematic view of a first structure of an embodiment of a safe and adjustable motor according to the present invention;

fig. 3 is a second schematic structural diagram of an embodiment of a safe and adjustable motor according to the present invention;

fig. 4 is a schematic structural diagram of a motor housing in an embodiment of a safe and adjustable motor according to the present invention;

FIG. 5 is a schematic structural view of the safety adjustable motor of the present invention when the screw rod is connected to the output shaft head;

fig. 6 is a schematic structural view of a screw rod in an embodiment of a safe adjustable motor according to the present invention;

fig. 7 is a schematic structural view of a force output shaft head in an embodiment of a safe adjustable motor according to the present invention;

the main element symbols are as follows:

the motor comprises a motor shell 1, a wiring terminal 11 and a first limiting plane 12;

the screw rod 2, the manual adjusting structure 21 and the ball head 23;

the force output shaft head 3, the ball groove 31, the second limit plane 32 and the load joint 33.

Detailed Description

In order to make the present invention better understood by those skilled in the art, the technical solutions of the present invention are further described below with reference to the accompanying drawings and examples.

As shown in fig. 2-7, the utility model discloses a safe adjustable motor, including motor housing 1, lead screw 2 installed inside motor housing 1, force output spindle nose 3 connected with the front end of lead screw 2, the rear end of lead screw 2 exposes motor housing 1, force output spindle nose 3 and lead screw 2 move in a straight line synchronously, but do not take place the synchronous rotary motion;

the front end of the screw rod 2 is provided with a ball head 23, and the rear end of the screw rod 2 is provided with a manual adjusting structure 21;

a first limiting plane 12 is arranged in an output port inner cavity of the motor shell 1;

the front end of the force output shaft head 3 is provided with a load joint 33, the rear end of the force output shaft head 3 is provided with a ball groove 31 matched with the ball head 23 in shape, the shaft body of the force output shaft head 3 is matched with the inner cavity of the output port of the motor shell 1, and the shaft body of the force output shaft head 3 is provided with two second limiting planes 32 up and down.

Preferably, the motor housing 1 is provided with a terminal 11 and a permanent magnet mechanism.

Preferably, the manual adjustment structure 21 is a cross-slot structure.

Preferably, the manual adjustment structure 21 is a straight groove structure.

Preferably, the manual adjustment structure 21 is a rotating handle structure.

In the implementation of the scheme, the working process of the motor is as follows, after the wiring terminal 11 is electrified, a permanent magnet mechanism in the motor shell 1 drives the screw rod 2 to rotate under the action of an electromagnetic field, the screw rod 2 rotates along threads to do linear motion, so that push-pull force is generated, the force output shaft head 3 and the screw rod 2 are connected with the spherical groove 31 through the ball head 23, therefore, the force output shaft head 3 and the screw rod 2 synchronously do linear motion, and the force output shaft head 3 and the motor shell 1 complete rotation limiting through the first limiting plane 12 and the second limiting plane 32, so that the rotation cannot be influenced by friction force;

when the wiring terminal 11 is powered off, the position of the force output shaft head 3 is fixed, rotation cannot be caused by the influence of load friction force, and linear displacement cannot be caused by the reaction force of the load, because the first limiting plane 12, the second limiting plane 32 and the screw thread of the screw rod 2 prevent the friction force and the reaction force of the load, the position of the force output shaft head 3 and the position of the load joint 33 can be adjusted only by rotating the manual adjusting structure 21 by using a tool;

according to the work flow, the safe adjustable motor effectively solves the problem that after the motor stops working, the lead screw 2 is affected by load, cannot be positioned and generates potential safety hazards; secondly, the permanent magnet mechanism fails, the force cannot be released, the load joint 33 cannot be managed safely, and the problem of inevitable safety accidents is caused.

The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims

1. A safe adjustable motor, its characterized in that: the motor comprises a motor shell (1), a screw rod (2) arranged in the motor shell (1) and a force output shaft head (3) connected with the front end of the screw rod (2), wherein the rear end of the screw rod (2) is exposed out of the motor shell (1), and the force output shaft head (3) and the screw rod (2) synchronously move in a linear manner without synchronous rotation;

a ball head (23) is arranged at the front end of the screw rod (2), and a manual adjusting structure (21) is arranged at the rear end of the screw rod (2);

a first limiting plane (12) is arranged in an output port inner cavity of the motor shell (1);

the front end of power output spindle nose (3) is equipped with load joint (33), the rear end of power output spindle nose (3) is equipped with ball groove (31) that matches with bulb (23) shape, the axle body of power output spindle nose (3) matches with the inner chamber of motor housing (1) delivery outlet, the axle body of power output spindle nose (3) is equipped with two spacing planes of second (32) from top to bottom.

2. A safe, adjustable electric machine according to claim 1, characterized in that: the motor shell (1) is provided with a wiring terminal (11) and a permanent magnet mechanism.

3. A safe adjustable motor according to claim 2, wherein: the manual adjusting structure (21) is of a cross-shaped groove structure.

4. A safe adjustable motor according to claim 2, wherein: the manual adjusting structure (21) is of a straight groove structure.

5. A safe adjustable motor according to claim 2, wherein: the manual adjusting structure (21) is a rotary handle structure.