A torque motor with a guiding and centering function

Abstract

The present invention discloses a torque motor with a guiding and centering function, which includes a motor housing and a rotor. A driving shaft is fixedly connected to the rotor. Two limiting grooves are formed in the motor housing. A toothed disc is rotatably connected in the limiting groove. The two toothed discs are installed oppositely. A gear is meshed between the two toothed discs. A rotating rod is fixedly connected to the gear. A fixing frame is installed in the motor housing. A torsion spring is installed on the fixing frame. The torsion spring is sleeved on the rotating rod. A ratchet wheel is installed on the rotating rod. A stopper is rotatably connected to the motor housing. A turning handle is installed at one end of the rotating rod. A spiral guiding strip is installed on one side of the toothed disc. The spiral angles of the spiral guiding strips on the two toothed discs are opposite. Two fixing discs are installed in the motor housing. Three sliding grooves are formed in the fixing disc. A slider is slidably connected in the sliding groove. A supporting frame is fixedly connected to the slider. An extrusion block is installed at one end of the supporting frame, making the device more convenient to use and the adjustment more accurate and fast.

Description

Technical Field

[0001] The present invention relates to the technical field of torque motors, and specifically to a torque motor with a guiding and centering function. Background Technique

[0002] A torque motor is a special type of motor with a relatively large number of poles. It can continue to operate even when the motor is running at a low speed or even stalled (i.e., the rotor cannot rotate), without causing damage to the motor. In this operating mode, the motor can provide a stable torque to the load (hence the name torque motor). The torque motor can also provide a torque in the opposite direction to the direction of rotation (braking torque). The shaft of the torque motor outputs power not at a constant power but at a constant torque.

[0003] However, since torque motors generally do not have a centering function during use, it is necessary to use external tools to center them during the use and installation of the equipment. Moreover, the centering devices provided on some motors are relatively cumbersome to adjust during use, and each centering mechanism needs to be adjusted once, resulting in inconvenient adjustment of the equipment. In addition, the centering device cannot adjust the centering function according to the environment of the equipment, thereby reducing its practicality.

[0004] Based on this, the present invention designs a torque motor with a guiding and centering function to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a torque motor with a guiding and centering function to solve the problem of inconvenient adjustment of the centering function proposed in the above background technique.

[0006] To achieve the above purpose, the present invention provides the following technical solutions:

[0007] A torque motor with a guiding and centering function includes a motor housing and a rotor. A drive shaft is fixedly connected to the rotor. Two limiting grooves are formed in the motor housing. A toothed disk is rotatably connected in the limiting groove. The two toothed disks are installed opposite to each other. A gear is meshed between the two toothed disks. A rotating rod is fixedly connected to the gear. A fixing frame is installed in the motor housing. A torsion spring is installed on the fixing frame. The torsion spring is sleeved on the rotating rod. A ratchet wheel is installed on the rotating rod. A stopper is rotatably connected to the motor housing. A turning handle is installed at one end of the rotating rod. A spiral guiding strip is installed on one side of the toothed disk. The spiral angles of the spiral guiding strips on the two toothed disks are opposite. Two fixing disks are installed in the motor housing. Three sliding grooves are formed in the fixing disk. A slider is slidably connected in the sliding groove. A support frame is fixedly connected to the slider. An extrusion block is installed at one end of the support frame.

[0008] Preferably, a stator is provided inside the motor housing, a rotor is provided inside the motor housing, and the rotor is located inside the stator.

[0009] Preferably, the fixing frame is in an N shape, the rotating rod is rotatably connected inside the fixing frame, one end of the torsion spring is fixedly connected to the rotating rod, and the other end of the torsion spring is fixedly connected to the fixing frame.

[0010] Preferably, another torsion spring is provided on the lower side of the stopper, a rubber anti-slip layer is provided on one side of the stopper, and a rubber anti-slip layer is provided on the surface of the rotary handle.

[0011] Preferably, both of the fixing disks are located outside the spiral guide strip, a guide groove is formed on the lower side of the slider, and the spiral guide strip is located inside the guide groove.

[0012] Preferably, the support frame is in an L shape, and a steel bar reinforcement layer is provided inside the support frame.

[0013] Preferably, the extrusion block is in a semi-circular shape, three extrusion blocks form a circle, and the drive shaft is located between the three extrusion blocks.

[0014] Preferably, a ventilation housing is provided at the rear side of the motor housing, a dust-proof net is provided on the ventilation housing, and a front cover is provided at the front side of the motor housing.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] In the present invention, by rotating the throttle grip, the throttle grip rotates. When the throttle grip rotates, it drives the rotating rod to rotate. When the rotating rod rotates, it drives the gear to rotate. The gear meshes with two toothed disks. Therefore, when the gear rotates, it drives the two toothed disks to rotate. When the toothed disks rotate, the spiral guide strips provided on the toothed disks rotate. Since the two toothed disks rotate in opposite directions driven by the gear and the spiral directions of the two spiral guide strips are opposite, when the two toothed disks rotate, the sliders can slide in the same direction in the chute. When the three sliders approach each other, the support frames installed on the sliders approach each other. At this time, the three extrusion blocks approach each other. The three extrusion blocks form a complete ring. When the three extrusion blocks form a ring, three of the extrusion blocks are located on the front side of the drive shaft, and the other three extrusion blocks are located on the rear side of the drive shaft. At this time, the six extrusion blocks perform limit centering on the front side and the rear side of the drive shaft, making the device more stable when positioning and guiding the drive shaft. And when centering, the front end and the rear end of the drive shaft are centered simultaneously, making the device more accurate when in use and more convenient to adjust. Only by adjusting the gear can the device be adjusted. When the rotating rod rotates, the torsion spring is compressed, and the stop block limits the ratchet wheel, so that when the motor works, the device can always position the drive shaft and prevent it from shifting. During the installation of the device, the device can be repeatedly operated to make the various parts in the device cooperate, thereby centering the drive shaft. When the centering device is not needed for the device, only by separating the stop block and the ratchet wheel, at this time the torsion spring drives the rotating rod and the gear to reverse and the sliders move in the opposite direction. At this time, the device can be separated from the drive shaft. When people find that the device is eccentric during use, the operation can be repeated to center the device. The adjustment of each position of the device, as well as centering during the installation of the device and centering during operation, make the device more convenient and fast to use and the adjustment simpler. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0018] Figure 1 It is a schematic structural diagram of the front side view of the present invention;

[0019] Figure 2 It is a schematic structural diagram of the left side view of the present invention;

[0020] Figure 3 It is a schematic structural diagram of the rear side view of the present invention;

[0021] Figure 4 It is a schematic internal structure diagram of the front side view of the present inventionFigure 1 ;

[0022] Figure 5 Schematic diagram of the internal structure of the front side view of the present invention Figure 2 ;

[0023] Figure 6 Schematic cross-sectional structure diagram of the front side view of the present invention.

[0024] In the attached drawings, the list of components represented by each reference numeral is as follows:

[0025] 1. Motor housing; 2. Stator; 3. Rotor; 4. Drive shaft; 5. Limit groove; 6. Tooth disc; 7. Gear; 8. Rotating rod; 9. Fixed bracket; 10. Torsion spring; 11. Ratchet; 12. Stopper; 13. Twist grip; 14. Spiral guide bar; 15. Fixed disk; 16. Slide groove; 17. Slide block; 18. Support frame; 19. Extrusion block; 20. Ventilation housing; 21. Dust-proof net. Detailed implementation manners

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the attached drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the scope of protection of the present invention.

[0027] Please refer to Figures 1-6 , the present invention provides a technical solution:

[0028] A torque motor with a guiding and centering function, including a motor housing 1 and a rotor 3. A drive shaft 4 is fixedly connected to the rotor 3. Two limit grooves 5 are provided in the motor housing 1. A tooth disc 6 is rotatably connected in the limit groove 5. The two tooth discs 6 are installed opposite to each other. A gear 7 is engaged between the two tooth discs 6. A rotating rod 8 is fixedly connected to the gear 7. A fixed bracket 9 is installed in the motor housing 1. A torsion spring 10 is installed on the fixed bracket 9. The torsion spring 10 is sleeved on the rotating rod 8. A ratchet 11 is installed on the rotating rod 8. A stopper 12 is rotatably connected to the motor housing 1. A twist grip 13 is installed at one end of the rotating rod 8. A spiral guide bar 14 is installed on one side of the tooth disc 6. The spiral angles of the spiral guide bars 14 on the two tooth discs 6 are opposite. Two fixed disks 15 are installed in the motor housing 1. Three slide grooves 16 are provided in the fixed disk 15. A slide block 17 is slidably connected in the slide groove 16. A support frame 18 is fixedly connected to the slide block 17. An extrusion block 19 is installed at one end of the support frame 18;

[0029] By rotating the throttle grip 13, the throttle grip 13 rotates. When the throttle grip 13 rotates, it drives the rotating rod 8 to rotate. When the rotating rod 8 rotates, the rotating rod 8 drives the gear 7 to rotate. The gear 7 meshes with two toothed discs 6. Therefore, when the gear 7 rotates, the gear 7 drives the two toothed discs 6 to rotate. When the toothed disc 6 rotates, the spiral guide bar 14 provided on the toothed disc 6 rotates. Since the two toothed discs 6 rotate in opposite directions driven by the gear 7 and the two spiral guide bars 14 have opposite spirals, when the two toothed discs 6 rotate, the slider 17 can slide in the chute 16 in the same direction. When the three sliders 17 approach each other, the support frames 18 installed on the sliders 17 approach each other. At this time, the three pressing blocks 19 approach each other. The three pressing blocks 19 form a complete ring. When the three pressing blocks 19 form a ring, three of the pressing blocks 19 are located on the front side of the drive shaft 4, and the other three pressing blocks 19 are located on the rear side of the drive shaft 4. At this time, the six pressing blocks 19 perform limit centering on the front and rear sides of the drive shaft 4, making the equipment more stable when positioning and guiding the drive shaft 4. And when centering, the front and rear ends of the drive shaft 4 are centered simultaneously, making the equipment more accurate when in use and more convenient to adjust. Only by adjusting the gear 7 can the equipment be adjusted. When the rotating rod 8 rotates, the torsion spring 10 is compressed, and the stop block 12 limits the ratchet 11, so that when the motor is working, the equipment can always position the drive shaft 4 to prevent it from shifting. During equipment installation, the equipment can be operated repeatedly to make the various parts in the equipment cooperate, thereby centering the drive shaft 4. When the equipment does not need to use the centering device, only by separating the stop block 12 and the ratchet 11, at this time the torsion spring 10 drives the rotating rod and the gear 7 to reverse and the slider 17 moves in the opposite direction. At this time, the equipment can be separated from the drive shaft 4. When people find that the equipment is eccentric during use, they can repeat the operation to center the equipment. The adjustment of each position of the equipment, and the centering can be carried out during equipment installation and also during operation, making the equipment more convenient and fast to use and the adjustment simpler.

[0030] Among them, a stator 2 is provided inside the motor housing 1, and a rotor 3 is provided inside the motor housing 1. The rotor 3 is located inside the stator 2; facilitating the operation of the equipment.

[0031] Among them, the fixing frame 9 is N-shaped. The rotating rod 8 is rotatably connected inside the fixing frame 9. One end of the torsion spring 10 is fixedly connected to the rotating rod 8, and the other end of the torsion spring 10 is fixedly connected to the fixing frame 9; effectively limiting the rotating rod 8 and facilitating the reverse rotation of the rotating rod 8.

[0032] Among them, another torsion spring 10 is provided on the lower side of the stop block 12, a rubber anti-slip layer is provided on one side of the stop block 12, and a rubber anti-slip layer is provided on the surface of the throttle grip 13; facilitating the operator to rotate the throttle grip 13 and facilitating increasing the friction between the equipment and the operator.

[0033] Among them, both fixed disks 15 are located outside the spiral guide bar 14. A guide groove is formed on the lower side of the slider 17, and the spiral guide bar 14 is located within the guide groove; this is beneficial to the movement of the slider 17.

[0034] Among them, the support frame 18 is L-shaped, and a steel bar reinforcement layer is provided inside the support frame 18; this further increases the strength of the support frame 18 and prevents it from being damaged during use.

[0035] Among them, the extrusion block 19 is semi-circular, and three extrusion blocks 19 form a circle, with the drive shaft 4 located between the three extrusion blocks 19; this facilitates the positioning of the drive shaft 4.

[0036] Among them, a ventilation shell 20 is provided at the rear side of the motor housing 1, a dust-proof net 21 is provided on the ventilation shell 20, and a front cover is provided at the front side of the motor housing 1; this is beneficial to the heat dissipation and ventilation of the device and prevents foreign objects from entering the device.

[0037] In the description of this specification, the descriptions referring to terms such as "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0038] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification to better explain the principles and practical applications of the present invention, so that those skilled in the relevant technical field can well understand and utilize the present invention. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. A torque motor with a guiding and centering function, comprising a motor housing (1) and a rotor (3), Characterized in that: A drive shaft (4) is fixedly connected to the rotor (3), two limiting grooves (5) are formed in the motor housing (1), a toothed disc (6) is rotatably connected in the limiting groove (5), the two toothed discs (6) are oppositely installed, a gear (7) is meshed between the two toothed discs (6), a rotating rod (8) is fixedly connected to the gear (7), a fixing frame (9) is installed in the motor housing (1), a torsion spring (10) is installed on the fixing frame (9), the torsion spring (10) is sleeved on the rotating rod (8), a ratchet wheel (11) is installed on the rotating rod (8), a stop block (12) is rotatably connected to the motor housing (1), a turning handle (13) is installed at one end of the rotating rod (8), a spiral guiding strip (14) is installed on one side of the toothed disc (6), and the spiral angles of the spiral guiding strips (14) on the two toothed discs (6) are opposite; Both of the two fixing discs (15) are located outside the spiral guiding strip (14), a guiding groove is formed on the lower side of the sliding block (17), and the spiral guiding strip (14) is located in the guiding groove; The pressing block (19) is semi-circular, and the three pressing blocks (19) form a circle, and the drive shaft (4) is located between the three pressing blocks (19).

2. A torque motor with a guiding and centering function according to claim 1, Characterized in that: A stator (2) is arranged in the motor housing (1), a rotor (3) is arranged in the motor housing (1), and the rotor (3) is located inside the stator (2).

3. A torque motor with a guiding and centering function according to claim 1, Characterized in that: The fixing frame (9) is in an N shape, the rotating rod (8) is rotatably connected in the fixing frame (9), one end of the torsion spring (10) is fixedly connected to the rotating rod (8), and the other end of the torsion spring (10) is fixedly connected to the fixing frame (9).

4. A torque motor with a guiding and centering function according to claim 1, Characterized in that: Another torsion spring (10) is arranged on the lower side of the stop block (12), a rubber anti-slip layer is arranged on one side of the stop block (12), and a rubber anti-slip layer is arranged on the surface of the turning handle (13).

5. A torque motor with a guiding and centering function according to claim 1, Characterized in that: The support frame (18) is in an L shape, and a steel bar reinforcement layer is arranged in the support frame (18).

6. A torque motor with a guiding and centering function according to claim 1, Characterized in that: A ventilation housing (20) is arranged at the rear side of the motor housing (1), a dust-proof net (21) is arranged on the ventilation housing (20), and a front cover is arranged at the front side of the motor housing (1).

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