CN219678254U

CN219678254U - Push rod motor

Info

Publication number: CN219678254U
Application number: CN202321158808.3U
Authority: CN
Inventors: 蔡建备
Original assignee: Ningbo Tuoxin Intelligent Transmission Co ltd
Current assignee: Ningbo Tuoxin Intelligent Transmission Co ltd
Priority date: 2023-05-12
Filing date: 2023-05-12
Publication date: 2023-09-12
Anticipated expiration: 2033-05-12

Abstract

The utility model relates to a push rod motor which comprises a shell, a motor, a fixed rod and a telescopic rod, wherein an output shaft of the motor stretches into the shell and is in transmission connection with a speed reducing assembly, the speed reducing assembly is in transmission connection with a screw rod, a screw rod nut is arranged on the screw rod and is connected with the telescopic rod, the telescopic rod is in sliding connection with the fixed rod, the end part of the telescopic rod stretches out of the fixed rod, limit switches are arranged on the inner sides of two ends of the fixed rod through fixing frames, and the screw rod nut can be connected with the limit switches. According to the utility model, the fixing frames are arranged at the two ends of the fixing rod, and the limit switch is installed through the fixing frames, so that the installation is convenient; the upper shell and the lower shell are combined, so that the motor and the speed reducing assembly can be conveniently installed and positioned, and stable transmission is ensured; meanwhile, the screw rod nut is provided with the convex part which is combined with the groove and the horizontal plate on the inner side of the fixed rod, so that the screw rod nut is convenient to install and fix, and meanwhile, tight connection is ensured.

Description

Push rod motor

Technical Field

The utility model relates to the technical field of motors, in particular to a push rod motor.

Background

The structure of push rod motor generally includes motor, reducing mechanism, dead lever and telescopic link, is provided with the lead screw in the dead lever, and the motor drives the lead screw and rotates, and the lead screw nut that the lead screw rotated the in-process and drive it rotates, and the lead screw nut drives the telescopic link and do axial motion, and the stroke of push rod motor is limited through the limit switch who sets up in the dead lever, but because in the dead lever both need pass through the telescopic link and pass through the lead screw nut again, still need wear to establish fixed limit switch's cable simultaneously, internal structure is compact, limit switch installs inconvenient, so need a simple structure, push rod motor of easy to assemble.

Disclosure of Invention

The utility model provides a push rod motor which is simple in structure and convenient to install.

The utility model provides a push rod motor which adopts the following technical scheme:

the utility model provides a push rod motor, includes casing, motor, dead lever and telescopic link, the output shaft of motor stretches into in the casing and the transmission is connected with the speed reduction subassembly, the speed reduction subassembly transmission is connected with the lead screw, is provided with screw-nut on the lead screw, screw-nut with the telescopic link is connected, telescopic link sliding connection is in the dead lever and its tip stretches out the dead lever sets up, and limit switch is all installed through the mount to the both ends inboard of dead lever, screw-nut can meet with limit switch.

Preferably, the shell comprises a lower shell and an upper shell which are buckled with each other, and a groove and a convex edge which are matched with each other are arranged at the joint of the lower shell and the upper shell.

Preferably, the motor with the position that corresponds the motor on the lower casing is provided with circular recess down that the casing is connected, is provided with the bearing in the circular recess, be connected with the worm on the output shaft of motor and pass through the worm with the speed reduction subassembly transmission is connected, is provided with fixed plate and the tip butt of worm on the fixed plate down in the casing.

Preferably, the speed reducing assembly comprises a turbine, the center of the turbine is connected with the screw rod in a transmission manner, fixed bearings are arranged on two sides of the turbine, annular grooves corresponding to the fixed bearings in shape are formed in the lower shell and the upper shell, and the screw rod is arranged on the two fixed bearings in a penetrating manner through the shaft sleeve.

Preferably, the telescopic rod is sleeved on the outer side of the screw rod, the end part of the telescopic rod is connected with the screw rod nut, and the telescopic rod and the screw rod nut are arranged inside the fixed rod.

Preferably, a plurality of protruding portions are circumferentially arranged on the outer side of the screw nut, grooves corresponding to the protruding portions are formed in the fixing rods, and sensing pieces are further arranged on the screw nut and can be connected with the limit switch.

Preferably, the fixing rod is of a hollow rod-shaped structure, a horizontal plate is arranged on the inner side of the fixing rod and can be connected with the upper end of the fixing frame, one end of the fixing rod is arranged in the shell, and an end cover is arranged at the other end of the fixing rod.

Preferably, the fixing rod is arranged in the shell, a notch is arranged on one end side face of the fixing rod, and a convex part corresponding to the notch is arranged on the shell.

Preferably, the fixing frame comprises a bottom plate and clamping plates arranged on the bottom plate, fixing columns used for fixing the limit switches are vertically arranged on the bottom plate, and the clamping plates are located on two sides of the fixing columns and provided with buckles.

Preferably, the end of the bottom plate is bent downwards, guide plates are arranged on two sides of the bottom plate, the guide plates are obliquely arranged, and an included angle between each guide plate and the bottom plate is an obtuse angle.

In summary, the present utility model includes at least one of the following beneficial technical effects:

1. the fixing frames are arranged at the two ends of the fixing rod, and the limit switch is installed through the fixing frames, so that the installation is convenient; the shell is arranged to be of an upper-lower structure, so that the motor and the speed reduction assembly are convenient to connect, and the installation is facilitated; by arranging the grooves and the convex edges on the lower shell and the upper shell, the inner seal can be ensured while the installation and the positioning are convenient, and the service life of the product is prolonged;

2. the motor can be positioned by arranging the groove at the joint of the lower shell and the motor and arranging the bearing in the groove, so that the motor is convenient to install; the fixed plate is arranged in the lower shell, so that a worm connected to the output shaft of the motor is conveniently fixed, and stable transmission is ensured;

3. the annular grooves corresponding to the turbine and the fixed bearing are formed in the lower shell and the upper shell, so that the turbine and the fixed bearing are convenient to install and position, and meanwhile, the two sides of the screw rod connected with the turbine are connected and fixed through the shaft sleeve and the fixed bearing, so that stable transmission is ensured;

4. the screw rod nut is provided with a plurality of convex parts in the circumferential direction at the outer side of the screw rod nut and is connected with the groove in the fixed rod through the convex parts, so that the screw rod nut is convenient to install, and meanwhile, the screw rod nut can play a supporting role, and the telescopic rod can move stably in the fixed rod; the motor can be closed at the position where the screw nut reaches the limit switch by arranging the induction piece on the screw nut, so that the limit function is realized;

5. the fixing frame and the limit switch on the fixing frame can be limited by arranging the horizontal plate on the inner side of the fixing rod, so that the fixing frame and the limit switch are prevented from shifting; the side surface of one end of the fixing rod is provided with the notch, and the upper shell and the shell are provided with the convex parts corresponding to the notch, so that the fixing rod is convenient to position and mount;

6. the limit switch can be limited by arranging the clamping plate and the fixing column on the fixing frame, so that the limit switch is convenient to install and fix; the end part of the bottom plate is provided with downward bending, so that the bottom plate can be clamped at the edge of the fixing rod during installation, the limiting effect is achieved, and the fixing frame is prevented from moving in the fixing rod; through set up the deflector in the both sides of bottom plate, be convenient for put into limit switch, combine fixed column and chucking board, easy to assemble.

Drawings

FIG. 1 is a schematic structural view of a push rod motor;

FIG. 2 is an exploded view of a push rod motor;

FIG. 3 is a schematic view of the push rod motor with the upper housing removed;

FIG. 4 is a schematic structural view of the upper housing;

FIG. 5 is a schematic view of the upper housing from another perspective;

FIG. 6 is a schematic view of the structure of the lower housing;

FIG. 7 is a schematic view of the lower housing from another perspective;

FIG. 8 is a schematic view of the construction of the lead screw nut;

FIG. 9 is a side view of the securing lever;

fig. 10 is a schematic structural view of the fixing frame.

Reference numerals illustrate: 1. a housing; 101. a lower housing; 1011. a fixing plate; 102. an upper housing; 2. a motor; 3. a fixed rod; 301. a horizontal plate; 4. a telescopic rod; 5. a deceleration assembly; 501. a turbine; 502. fixing a bearing; 6. a screw rod; 7. a screw nut; 701. an induction piece; 8. a fixing frame; 801. a bottom plate; 802. a clamping plate; 803. fixing the column; 804. a guide plate; 9. a limit switch; 10. an end cap.

Detailed Description

The present utility model will be described in further detail with reference to the accompanying drawings.

The embodiment of the utility model discloses a push rod motor.

Referring to fig. 1 to 10, a push rod motor comprises a housing 1, a motor 2, a fixed rod 3 and a telescopic rod 4, wherein the housing 1 comprises a lower housing 101 and an upper housing 102 which are mutually buckled, a groove and a convex edge which are mutually matched are arranged at the joint position of the lower housing 101 and the upper housing 102, an output shaft of the motor 2 passes through the lower housing 101 and stretches into the housing 1, a worm is arranged on the output shaft of the motor 2 and is connected with a speed reducing assembly 5 through worm transmission, a circular groove is arranged at the bottom of the lower housing 101 corresponding to the motor 2, a bearing is arranged in the circular groove, the output shaft of the motor 2 passes through the bearing, a fixed plate 1011 is arranged in the lower housing 101, the end part of the worm is abutted on the fixed plate 1011, in particular, the fixed plate 1011 in the embodiment is of a cut cylindrical structure and is semi-wrapped at the outer side of the worm, and the end part of the fixed plate 1011 is provided with a through hole or a groove;

referring to fig. 2 to 7, the speed reducing assembly 5 comprises a turbine 501 in transmission connection with a worm, a screw rod 6 is connected to the center of the turbine 501, fixed bearings 502 are arranged on two sides of the turbine 501, and annular grooves corresponding to the shapes of the turbine 501 and the fixed bearings 502 are arranged on the lower shell 101 and the upper shell 102, so that the turbine and the fixed bearings can be conveniently installed and positioned; the screw rod 6 is arranged on the two fixed bearings 502 in a penetrating way through the shaft sleeve, so that the transmission stability is ensured;

referring to fig. 2 and fig. 2, a screw rod 6 is meshed with a screw rod nut 7, the screw rod nut 7 is connected with a telescopic rod 4, the telescopic rod 4 is slidably connected in a fixed rod 3, the end part of the telescopic rod 4 extends out of the fixed rod 3, specifically, the telescopic rod 4 is sleeved outside the screw rod 6, the end part of the telescopic rod 4 is connected with the screw rod nut 7 and is slidably arranged in the fixed rod 3 through the screw rod nut 7, specifically, the screw rod nut 7 in the embodiment is in threaded connection with the end part of the telescopic rod 4, the telescopic rod 4 and the screw rod nut 7 are both arranged inside the fixed rod 3, a plurality of protruding parts are circumferentially arranged outside the screw rod nut 7, grooves corresponding to the protruding parts are formed in the fixed rod 3, an induction piece 701 is further arranged on the screw rod nut 7, and the induction piece 701 can be connected with a limit switch 9; the fixed rod 3 is of a hollow rod-shaped structure, limit switches 9 are arranged on the inner sides of two ends of the fixed rod 3 through fixing frames 8, the limit switches 9 are electrically connected with the motor 2, and the screw nuts 7 can be connected with the limit switches 9;

referring to fig. 2, 9 and 10, a horizontal plate 301 is disposed on the inner side of the fixing rod 3 and can be connected with the upper end of the fixing frame 8, one end of the fixing rod 3 is disposed in the housing 1, the other end of the fixing rod 3 is provided with an end cover 10, specifically, a groove corresponding to the fixing frame 8 is disposed on the inner side of the end cover 10 in this embodiment, and corresponding grooves are also disposed on the lower housing 101 and the upper housing 102; a notch is arranged on the side surface of one end of the fixed rod 3 arranged in the shell 1, and convex parts corresponding to the notch are arranged on the lower shell 101 and the upper shell 102; the fixing frame 8 comprises a bottom plate 801 and clamping plates 802 arranged on the bottom plate 801, fixing columns 803 for fixing the limit switch 9 are vertically arranged on the bottom plate 801, and the clamping plates 802 are positioned on two sides of the fixing columns 803 and provided with buckles; the end of the bottom plate 801 is bent downwards, guide plates 804 are arranged on two sides of the bottom plate 801, the guide plates 804 are obliquely arranged, and an included angle between each guide plate 804 and the bottom plate 801 is an obtuse angle, so that the limit switch 9 is conveniently placed.

In the utility model, when in installation, the limit switch 9 is firstly installed on the fixed frame 8 according to the direction, then the fixed frame 8 is installed at two ends of the fixed rod 3, specifically, the limit switch 9 is firstly pressed into the bottom plate 801, the holes of the limit switch 9 are directly aligned with the fixed columns to be pressed into the bottom plate 801 due to the functions of the guide plate 804 and the fixed columns 803, the limit switch 9 can be fixed on the bottom plate 801 by the buckles on the clamping plate 802, the end part of the bottom plate 801 is downwards bent to play a limiting role, and the fixed frame 8 can be installed at the end part of the fixed rod 3 by combining the horizontal plate 301 arranged in the fixed rod 3; then, the screw rod 6 is sleeved into the telescopic rod 4, the screw rod nut 7 is arranged at the end part of the telescopic rod 4, then the telescopic rod 4 and the screw rod nut 7 are arranged in the fixed rod 3, the end cover 10 is arranged at the end part of the fixed rod 3, the end cover 10 is used for fixing the fixing frame 8, and one end of the telescopic rod 4 extends out of the fixed rod 3;

then the other end of the screw rod 6 is connected with the speed reducing assembly 5 and is positioned and installed through a groove in the lower shell 101, specifically, one end of the screw rod 6 passes through the fixed bearing 502 and the turbine 501 and is abutted in the lower shell 101, then the fixed rod 3 is arranged between the lower shell and the upper shell, one end of the fixed rod 3 is fixed in the shell 1 through a notch on the fixed rod 3 and a convex part on the lower shell 101 and the upper shell 102, finally, an output shaft of the motor 2 passes through the lower shell 101 and is in transmission connection with the turbine 501, the bearing is firstly placed in a circular groove at the bottom of the lower shell 101 before connection, then the motor 2 and the lower shell 101 are fixed through bolts, the installation is completed, the positioning of the whole process is accurate, and the installation is convenient.

The above embodiments are not intended to limit the scope of the present utility model, so: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.

Claims

1. A push rod motor, characterized by: including casing (1), motor (2), dead lever (3) and telescopic link (4), the output shaft of motor (2) stretches into in casing (1) and the transmission is connected with reducing assembly (5), reducing assembly (5) transmission is connected with lead screw (6), is provided with screw-nut (7) on lead screw (6), screw-nut (7) with telescopic link (4) are connected, telescopic link (4) sliding connection is in dead lever (3) and its tip stretches out dead lever (3) set up, limit switch (9) are all installed through mount (8) in the both ends inboard of dead lever (3), limit switch (9) with motor (2) electricity is connected, screw-nut (7) can meet with limit switch (9).

2. A push rod motor as set forth in claim 1 wherein: the shell (1) comprises a lower shell (101) and an upper shell (102) which are buckled with each other, and grooves and convex edges which are matched with each other are formed in the connecting position of the lower shell (101) and the upper shell (102).

3. A push rod motor as set forth in claim 2 wherein: the motor (2) is connected with the lower shell (101), a circular groove is formed in the position, corresponding to the motor (2), of the lower shell (101), a bearing is arranged in the circular groove, a worm is connected to an output shaft of the motor (2) and is in transmission connection with the speed reduction assembly (5) through the worm, a fixed plate (1011) is arranged in the lower shell (101), and the end part of the worm is abutted to the fixed plate (1011).

4. A push rod motor as set forth in claim 2 wherein: the speed reduction assembly (5) comprises a turbine (501), the center of the turbine (501) is in transmission connection with the screw rod (6), fixed bearings (502) are arranged on two sides of the turbine (501), annular grooves corresponding to the shapes of the turbine (501) and the fixed bearings (502) are formed in the lower shell (101) and the upper shell (102), and the screw rod (6) is arranged on the two fixed bearings (502) in a penetrating mode through a shaft sleeve.

5. A push rod motor as set forth in claim 1 wherein: the telescopic rod (4) is sleeved on the outer side of the screw rod (6), the end part of the telescopic rod (4) is connected with the screw rod nut (7), and the telescopic rod (4) and the screw rod nut (7) are arranged inside the fixed rod (3).

6. A push rod motor as set forth in claim 1 wherein: the screw nut (7) is circumferentially provided with a plurality of protruding parts and a groove corresponding to the protruding parts is formed in the fixed rod (3), the screw nut (7) is also provided with an induction piece (701), and the induction piece (701) can be connected with the limit switch (9).

7. A push rod motor as set forth in claim 1 wherein: the fixing rod (3) is of a hollow rod-shaped structure, a horizontal plate (301) is arranged on the inner side of the fixing rod (3) and can be connected with the upper end of the fixing frame (8), one end of the fixing rod (3) is arranged in the shell (1), and an end cover (10) is arranged at the other end of the fixing rod (3).

8. A push rod motor as set forth in claim 7 wherein: the fixing rod (3) is arranged on one end side surface in the shell (1) and is provided with a notch, and the shell (1) is provided with a convex part corresponding to the notch.

9. A push rod motor as set forth in claim 1 wherein: the fixing frame (8) comprises a bottom plate (801) and clamping plates (802) arranged on the bottom plate (801), fixing columns (803) used for fixing the limit switch (9) are vertically arranged on the bottom plate (801), and the clamping plates (802) are located on two sides of the fixing columns (803) and are provided with buckles.

10. A push rod motor as set forth in claim 9 wherein: the end of the bottom plate (801) is bent downwards, guide plates (804) are arranged on two sides of the bottom plate (801), the guide plates (804) are obliquely arranged, and an included angle between each guide plate and the bottom plate (801) is an obtuse angle.