Fixing mechanism for synchronizing wheel of electric cylinder module

Abstract

The utility model discloses an electric cylinder module synchronizing wheel fixing mechanism which comprises an electric cylinder main body, a push rod is installed in the electric cylinder main body, a motor base is installed at one end of the electric cylinder main body, one end of the push rod penetrates through the side wall of the electric cylinder main body to be fixedly provided with a threaded rod, and one end of the push rod is rotationally connected with the side wall of the electric cylinder main body. The threaded rod is in threaded connection with a driven wheel, a set screw is further installed between the driven wheel and the threaded rod, one end of the set screw abuts against the outer wall of the threaded rod, and a motor is installed on the side, adjacent to the motor base, of the electric cylinder body. According to the utility model, the driven wheel is in threaded connection with the threaded rod for threaded locking, and then the stop screw is used for propping against the thread at the shaft outlet of the threaded rod, so that double reinforcement is realized, and the problems of step losing, loosening and inaccurate positioning when the motor runs to drive the driving wheel and the driven wheel to rotate at a high speed are effectively avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of electric cylinder modules, in particular to a synchronous wheel fixing mechanism for an electric cylinder module. Background Art

[0002] A small electric cylinder is a device that drives linear motion by electric means. It can convert rotary motion into linear motion and is widely used in automatic control systems. Traditional electric cylinders are mainly composed of an electric cylinder body, a screw, a transmission mechanism with a synchronous wheel, and a motor. Figure 4 As shown, the screw rod is installed inside the electric cylinder body, and one end of the screw rod is connected to the output shaft of the motor through a transmission mechanism, so that the motor can drive the screw rod to rotate; however, the screw rod output shaft diameter of this small electric cylinder is very thin, and the surface of the screw rod output shaft is very smooth after processing. It is not easy to open a key groove at the connection between the screw rod and the transmission mechanism, so a set screw is used to tighten the connection between the screw rod and the transmission mechanism. Under the condition of high-speed rotation and long-term working operation, since the connection between this thinner screw rod output shaft and the transmission mechanism is completely fastened by the set screw in the transmission mechanism, there is a risk of slipping, which causes the electric cylinder to lose steps, loosen, and have inaccurate positioning and high maintenance frequency. Therefore, we need to propose an electric cylinder module synchronous wheel fixing mechanism to solve the above-mentioned problems. Utility Model Content

[0003] The purpose of the utility model is to provide an electric cylinder module synchronous wheel fixing mechanism, which connects the driven wheel threadably to the threaded rod for thread locking, and then uses a set screw to support the thread at the threaded rod shaft outlet, thereby achieving double reinforcement, effectively avoiding the problems of lost steps, looseness, and inaccurate positioning when the motor runs and drives the driving wheel and the driven wheel to rotate at high speed, so as to solve the problems raised in the background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a synchronous wheel fixing mechanism of an electric cylinder module, comprising an electric cylinder body, a push rod is installed inside the electric cylinder body, a motor seat is installed at one end of the electric cylinder body, a threaded rod is fixed to one end of the push rod through the side wall of the electric cylinder body, and one end of the push rod is rotatably connected to the side wall of the electric cylinder body, a driven wheel is threadedly connected to the threaded rod, a set screw is also installed between the driven wheel and the threaded rod, and one end of the set screw abuts against the outer wall of the threaded rod, a motor is installed on the side of the electric cylinder body adjacent to the motor seat, the output shaft of the motor passes through the side wall of the motor seat and extends to the inside of the motor seat, and the output shaft of the motor is connected to the driven wheel through a transmission mechanism.

[0005] Preferably, the transmission mechanism comprises a driving wheel and a belt, the driving wheel is mounted on the output shaft of the motor, and the belt is sleeved on the outside of the driving wheel and the driven wheel.

[0006] Preferably, a connecting block is welded to one end of the push rod, one end of the threaded rod is welded to one end of the connecting block, and a clearance groove for the connecting block to be embedded is opened on the motor seat.

[0007] Preferably, the diameter of the driven wheel is the same as that of the driving wheel, and both the driven wheel and the driving wheel are provided with notches for the belt to be inserted into.

[0008] Preferably, a screw hole matching the threaded rod is opened at the center of the driven wheel, and the driven wheel and the driving wheel are located in the same horizontal plane.

[0009] Preferably, two set screws are provided, the installation directions of the two set screws are perpendicular, and the side wall of the driven wheel is provided with a threaded hole for the set screws to be threaded.

[0010] Preferably, a connection terminal is provided on one side of the motor, and a connection line for connecting to a power source is plugged into one end of the connection terminal.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The utility model realizes double reinforcement by connecting the driven wheel thread to the threaded rod for thread locking and then supporting the thread at the threaded rod shaft outlet with a set screw, thereby effectively avoiding the problems of lost steps, looseness and inaccurate positioning when the motor runs and drives the driving wheel and the driven wheel to rotate at high speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the exploded structure of the transmission mechanism and the motor seat of the utility model;

[0014] Figure 2 This is a schematic diagram of the structure of the transmission mechanism and the motor base during installation of the utility model;

[0015] Figure 3 For the utility model Figure 2 The enlarged structural diagram at A in the middle;

[0016] Figure 4 It is a structural schematic diagram of the electric cylinder screw shaft output shaft in the prior art.

[0017] In the figure: 1. Motor; 2. Motor seat; 3. Threaded rod; 4. Driven wheel; 5. Driving wheel; 6. Set screw; 7. Belt; 8. Electric cylinder body; 9. Connection terminal; 10. Screw rod; 11. Transmission mechanism. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1-3 The utility model provides a technical solution: a synchronous wheel fixing mechanism of an electric cylinder module, comprising an electric cylinder body 8, a push rod is installed inside the electric cylinder body 8, a motor seat 2 is installed at one end of the electric cylinder body 8, a threaded rod 3 is fixed to one end of the push rod through the side wall of the electric cylinder body 8, and one end of the push rod is rotatably connected to the side wall of the electric cylinder body 8, a driven wheel 4 is threadedly connected to the threaded rod 3, a set screw 6 is also installed between the driven wheel 4 and the threaded rod 3, and one end of the set screw 6 is in contact with the outer wall of the threaded rod 3, a motor 1 is installed on the side of the electric cylinder body 8 adjacent to the motor seat 2, the output shaft of the motor 1 passes through the side wall of the motor seat 2 and extends to the inside of the motor seat 2, and the output shaft of the motor 1 is connected to the driven wheel 4 through a transmission mechanism 11 Next, the motor 1 drives the driven wheel 4 to rotate through the transmission mechanism 11, so that the driven wheel 4 drives the threaded rod 3 to rotate, and the rotation of the threaded rod 3 drives the push rod to extend forward. The push rod is composed of a screw rod 10 and a threaded sleeve. The threaded rod 3 is connected to one end of the screw rod 10, and the threaded sleeve is threadedly connected to the screw rod 10. The screw rod 10 is driven to rotate by the threaded rod 3, so that the threaded sleeve can move horizontally on the screw rod 10 to achieve the extension and shortening of the threaded sleeve. The driven wheel 4 is threadedly connected to the threaded rod 3 for thread locking, and the thread at the threaded rod 3 is supported by the set screw 6. Double reinforcement is achieved, which effectively avoids the problems of lost steps, looseness, and inaccurate positioning when the motor 1 drives the driving wheel 5 and the driven wheel 4 to rotate at high speed.

[0020] The transmission mechanism 11 includes a driving wheel 5 and a belt 7. The driving wheel 5 is installed on the output shaft of the motor 1. The belt 7 is sleeved on the outside of the driving wheel 5 and the driven wheel 4. The motor 1 drives the driving wheel 5 to rotate, and the driving wheel 5 drives the driven wheel 4 to rotate through the belt 7, so that the driven wheel 4 drives the threaded rod 3 to rotate.

[0021] A connecting block is welded to one end of the push rod, one end of the threaded rod 3 is welded to one end of the connecting block, and a makeshift groove for the connecting block to be embedded is provided on the motor seat 2, so as to facilitate the connection and fixation of the threaded rod 3 with the screw rod 10 of the push rod, so that the threaded rod 3 drives the screw rod 10 in the push rod to rotate.

[0022] The diameter of the driven wheel 4 is the same as that of the driving wheel 5. Both the driven wheel 4 and the driving wheel 5 are provided with recesses for the belt 7 to be inserted into, so that the belt 7 can be firmly connected to the driven wheel 4 and the driving wheel 5, effectively preventing the belt 7 from shifting during rotation.

[0023] A screw hole matching the threaded rod 3 is provided at the center of the driven wheel 4, and the driven wheel 4 and the driving wheel 5 are located in the same horizontal plane, so as to utilize the threaded cooperation between the threaded rod 3 and the screw hole to improve the firmness of the fixing of the driven wheel 4 and the threaded rod 3.

[0024] There are two set screws 6, and the installation directions of the two set screws 6 are vertical. The side wall of the driven wheel 4 is provided with a threaded hole for the set screw 6 to be screwed. The set screw 6 supports the thread at the outlet of the threaded rod 3, and the thread of the driven wheel 4 and the threaded rod 3 are fixed together, thereby achieving double reinforcement of the driven wheel 4.

[0025] A connection terminal 9 is provided on one side of the motor 1 , and a connection line for connecting to a power source is plugged into one end of the connection terminal 9 , so as to facilitate connection of the motor 1 to the power source and improve the convenience of wiring the motor 1 .

[0026] Although the 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 variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A synchronous wheel fixing mechanism for an electric cylinder module, comprising an electric cylinder body (8), Features: A push rod is installed inside the electric cylinder body (8), and a motor seat (2) is installed at one end of the electric cylinder body (8). One end of the push rod passes through the side wall of the electric cylinder body (8) and is fixed with a threaded rod (3), and one end of the push rod is rotatably connected to the side wall of the electric cylinder body (8). A driven wheel (4) is threadedly connected to the threaded rod (3), and a set screw (6) is also installed between the driven wheel (4) and the threaded rod (3), and one end of the set screw (6) is in contact with the outer wall of the threaded rod (3). A motor (1) is installed on the side of the electric cylinder body (8) adjacent to the motor seat (2), and the output shaft of the motor (1) passes through the side wall of the motor seat (2) and extends to the inside of the motor seat (2), and the output shaft of the motor (1) is connected to the driven wheel (4) through a transmission mechanism (11).

2. According to claim 1, a synchronous wheel fixing mechanism for an electric cylinder module, Features: The transmission mechanism (11) comprises a driving wheel (5) and a belt (7), wherein the driving wheel (5) is mounted on the output shaft of the motor (1), and the belt (7) is sleeved on the outside of the driving wheel (5) and the driven wheel (4).

3. The electric cylinder module synchronous wheel fixing mechanism according to claim 2, Features: A connecting block is welded to one end of the push rod, one end of the threaded rod (3) is welded to one end of the connecting block, and a clearance groove for the connecting block to be embedded is provided on the motor seat (2).

4. The electric cylinder module synchronous wheel fixing mechanism according to claim 3, Features: The diameter of the driven wheel (4) is the same as that of the driving wheel (5), and both the driven wheel (4) and the driving wheel (5) are provided with notches for the belt (7) to be inserted into.

5. The electric cylinder module synchronous wheel fixing mechanism according to claim 4, Features: A screw hole matching the threaded rod (3) is provided at the center of the driven wheel (4), and the driven wheel (4) and the driving wheel (5) are located on the same horizontal plane.

6. The electric cylinder module synchronous wheel fixing mechanism according to claim 1, Features: Two stop screws (6) are provided, and the installation directions of the two stop screws (6) are perpendicular. The side wall of the driven wheel (4) is provided with a threaded hole for the stop screws (6) to be screwed.

7. The electric cylinder module synchronous wheel fixing mechanism according to claim 1, Features: A connection terminal (9) is provided on one side of the motor (1), and a connection line for connecting to a power source is plugged into one end of the connection terminal (9).

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