A reversing speed control device

Abstract

A reversing speed control device, a reversing lever is arranged on a trigger seat, a reversing latch mechanism is arranged between the reversing lever and the trigger seat, a reversing magnet is arranged on the reversing lever, a speed regulating push rod is arranged at the center of the reversing lever, a speed regulating spring is arranged between the end of the speed regulating push rod and the trigger seat, a speed regulating slide plate is arranged on the speed regulating push rod, a locking structure is arranged between the speed regulating slide plate and the reversing lever, a speed regulating magnet is arranged on the speed regulating slide plate, a Hall mounting plate is arranged on the trigger seat directly above the speed regulating slide plate, a speed regulating sliding groove is formed between the Hall mounting plate and the trigger seat, a speed regulating Hall corresponding to the speed regulating magnet and a reversing Hall corresponding to the reversing magnet are arranged on the Hall mounting plate, the reversing Hall is located on one side of the circumference of the reversing magnet, and the speed regulating Hall is located above the front of the speed regulating magnet. The overall structural design of the present invention is ingenious, interlocking, and has the advantages of small size, simple and convenient operation, safety and reliability.

Description

Technical Field

[0001] The invention belongs to the technical field of precision instruments, and in particular relates to a reversing speed regulation control device. Background Art

[0002] At present, motors are widely used in different industries and fields, but the forward and reverse rotation and speed control devices of motors are mostly complex, cumbersome to operate, low in reliability, large in size, and low in precision. Especially in the medical device industry, there are high requirements for the accuracy, reliability, size, high temperature resistance, waterproofness, and ease of operation of the control devices. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a reversing speed regulating control device with compact structure, small volume, simple and convenient operation, safety and reliability.

[0004] The technical solution adopted to solve the above technical problems is: a reversing speed control device, a reversing lever is arranged on the trigger seat, a reversing latching mechanism is arranged between the reversing lever and the trigger seat, a reversing magnet is arranged on the reversing lever, a speed regulating push rod is arranged in the center of the reversing lever, a speed regulating spring is arranged between the end of the speed regulating push rod and the trigger seat, a speed regulating slide plate is arranged on the speed regulating push rod, a locking structure is arranged between the speed regulating slide plate and the reversing lever, a speed regulating magnet is arranged on the speed regulating slide plate, a Hall mounting plate is arranged on the trigger seat directly above the speed regulating slide plate, a speed regulating sliding groove is formed between the Hall mounting plate and the trigger seat, a speed regulating Hall corresponding to the speed regulating magnet and a commutation Hall corresponding to the commutation magnet are arranged on the Hall mounting plate, the commutation Hall is located on one side of the commutation magnet in the circumferential direction, and the speed regulating Hall is located in front of and above the speed regulating magnet.

[0005] As a preferred technical solution, the reversing lever is a ring-shaped actuator with a handle provided on one end surface thereof, and the handle is integrally connected to the actuator.

[0006] As a preferred technical solution, the reversing latch mechanism is a vertical mounting hole processed on the top of the trigger seat, and a first top screw, a first spring, and a steel ball are arranged in the vertical mounting hole from top to bottom in sequence. Three spherical crown-shaped grooves corresponding to the steel ball are processed along the circumferential direction on the outer side wall of the toggle device of the reversing lever, which are a forward rotation slot, a locking slot, and a reverse rotation slot. Under the action of the first spring, the steel ball is stuck in the forward rotation slot, the locking slot, or the reverse slot.

[0007] As a preferred technical solution, a semi-circular limit groove is processed on the circumference of the toggle lever of the reversing lever, and two limit pins are symmetrically arranged on the left and right sides of the trigger seat, and the ends of the two limit pins extend into the limit groove.

[0008] As a preferred technical solution, the locking structure is a first boss protruding inwardly processed on the reversing lever, the first boss is located axially directly in front of the locking slot, and a U-shaped slot opening upward is processed on the upper surface of the speed regulating slide, and the first boss matches the U-shaped slot.

[0009] As a preferred technical solution, the speed regulating slide is snap-connected to the speed regulating push rod, the connecting end of the speed regulating slide and the speed regulating push rod is a rectangular structure and the two side surfaces are processed with second bosses protruding outward, and the upper surface of the speed regulating push rod is processed with a special-shaped groove matching the shape of the connecting end of the speed regulating slide.

[0010] As a preferred technical solution, a sealing ring is provided between the trigger seat and the reversing lever, and a sealing ring is provided between the reversing lever and the speed regulating push rod.

[0011] As a preferred technical solution, the sealing ring is made of fluororubber.

[0012] The beneficial effects of the present invention are as follows:

[0013] The present invention adopts the pushing and toggling control based on the Hall effect principle. The speed regulating push rod is pushed to adjust the distance between the speed regulating magnet and the speed regulating Hall to achieve speed regulation. The reversing lever is toggled to adjust the distance between the reversing magnet and the reversing Hall to achieve reversing. The reversing latching mechanism of the present invention not only realizes the reversing fixation, but also increases the rotation feel. The locking structure of the present invention ensures that the reversing and speed regulation are locked at the same time, and has the characteristics of compact structure. A sealing ring is arranged between the trigger seat and the reversing lever, and a sealing ring is arranged between the reversing lever and the speed regulating push rod. The sealing ring is made of fluororubber, which can be resistant to high temperature and waterproof, and meets the sealing, waterproofing and high-temperature disinfection of the fitting point. The overall structural design of the present invention is ingenious, interlocking, and has the advantages of small size, simple and convenient operation, safety and reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the present invention.

[0015] Figure 2 It is a schematic end view of the present invention.

[0016] Figure 3 yes Figure 2 AA section view.

[0017] Figure 4 yes Figure 3 BB cross-sectional view.

[0018] Figure 5 It is a structural schematic diagram of the reversing lever 5 of the present invention.

[0019] Figure 6 It is a structural schematic diagram of the speed regulating push rod 2 of the present invention.

[0020] Figure 7 It is a structural schematic diagram of the speed regulating slide plate 11 of the present invention.

[0021] Among them: trigger seat 1; mounting plate 1-1; mounting compartment 1-2; speed control push rod 2; reversing Hall 3; Hall mounting plate 4; reversing lever 5; handle 5-1; toggle 5-2; first boss 5-3; sealing ring 6; steel ball 7; first top screw 8; first spring 9; reversing magnet 10; speed control slide plate 11; second boss 11-1; speed control magnet 12; speed control Hall 13; speed control spring 14; second limit pin 15; first limit pin 16; speed control slide groove a; forward rotation slot b, locking slot c, reverse rotation slot d; limit slot e; U-shaped slot f; special-shaped groove g. DETAILED DESCRIPTION

[0022] The present invention will be further described in detail below in conjunction with the accompanying drawings and examples, but the present invention is not limited to the following embodiments.

[0023] exist Figures 1 to 6 In the embodiment, the reversing speed control device is composed of a trigger base 1, a speed regulating push rod 2, a reversing Hall 3, a Hall mounting plate 4, a reversing lever 5, a sealing ring 6, a steel ball 7, a first top screw 8, a first spring 9, a reversing magnet 10, a speed regulating slide plate 11, a speed regulating magnet 12, a speed regulating Hall 13, and a speed regulating spring 14.

[0024] The trigger seat 1 is composed of a mounting plate 1-1 and a mounting bin 1-2 connected as a whole. A reversing lever 5 is installed at the center of the side of the mounting plate 1-1 of the trigger seat 1. The reversing lever 5 is a ring-shaped toggle 5-2 on one end surface of which is connected a handle 5-1. The handle 5-1 is connected to the ring-shaped toggle 5-2 as a whole. The toggle 5-2 of the reversing lever 5 can rotate in the trigger seat 1. A sealing ring 6 is installed between the toggle 5-2 and the trigger seat 1. The sealing ring 6 is made of fluororubber, which can withstand high temperature and be waterproof, and meets the sealing, waterproofing and high-temperature disinfection requirements of the mating part. A vertical mounting hole is processed on the top of the trigger seat 1. The first top screw 8, the first spring 9, and the steel ball 7 are installed in the vertical mounting hole from top to bottom in sequence. Three There are spherical crown grooves corresponding to the steel ball 7, which are respectively a forward rotation slot b, a locking slot c, and a reverse rotation slot d. Under the action of the first spring 9, the steel ball 7 is stuck in the forward rotation slot b, the locking slot c, or the reverse rotation slot d. In the initial state, the steel ball 7 is stuck in the locking slot c. The reversing lever 5 is also circumferentially processed with a semi-annular limiting groove e. The first limiting pin 16 and the second limiting pin 15 are symmetrically installed on the left and right sides of the trigger base 1. The ends of the first limiting pin 16 and the second limiting pin 15 extend into the limiting groove e. Rotate the handle 5-1 counterclockwise, and when the first limiting pin 16 is stuck in the end of the limiting groove e, the steel ball 7 is stuck in the reverse rotation slot d. Rotate the handle 5-1 clockwise, and when the second limiting pin 15 is stuck in the end of the limiting groove e, the steel ball 7 is stuck in the forward rotation slot b, the locking slot c, or the reverse rotation slot d. The commutation lever 5 is rotated in the card slot b, and at the same time, it is ensured that the reversing lever 5 does not produce axial movement. A reversing magnet 10 mounting platform is processed in the axial direction just in front of the locking card slot c on the toggle device 5-2 of the reversing lever 5, and the reversing magnet 10 is installed on the upper surface of the reversing magnet 10 mounting platform. The inner side of the end of the reversing magnet 10 mounting platform is processed with a first boss 5-3 protruding inwardly. A speed regulating push rod 2 is installed in the center of the reversing lever 5. A sealing ring 6 is installed between the speed regulating push rod 2 and the reversing lever 5. The material is fluororubber, which can be resistant to high temperature and waterproof, and meets the sealing, waterproofing and high-temperature disinfection of the fitting part. A speed regulating spring 14 is installed between the end of the speed regulating push rod 2 and the trigger seat 1 in the mounting compartment 1-2 of the trigger seat 1, and the speed regulating push rod 2 can make linear reciprocating motion along the axis of the reversing lever 5. The speed regulating push rod 2 is buckled and connected with a speed regulating slide plate 11. The connecting end of the speed regulating slide plate 11 connected to the speed regulating push rod 2 is a rectangular structure and the two side surfaces are processed with a second boss 11-1 protruding outward. The upper surface of the side wall of the speed regulating push rod 2 is processed with a special-shaped groove g matching the shape of the connecting end of the speed regulating slide plate 11. The connecting end of the speed regulating slide plate 11 is buckled in the special-shaped groove g to ensure that the speed regulating push rod 2 and the speed regulating slide plate 11 move synchronously. The upper surface of the speed regulating slide plate 11 is processed with a U-shaped groove f with an opening upward, and the U-shaped groove f matches the first boss 5-3. In the locked state, the first boss 5-3 is located in the U-shaped groove f. A speed regulating magnet 12 is fixedly installed on the speed regulating slide plate 11. A Hall mounting plate 4 is fixedly installed on the trigger seat 1 directly above the speed regulating slide plate 11.A speed regulating sliding groove a is formed between the Hall mounting plate 4 and the mounting chamber 1-2 of the trigger seat 1. A speed regulating Hall 13 parallel to the speed regulating magnet 12 and a commutation Hall 3 corresponding to the commutation magnet 10 are fixedly mounted on the Hall mounting plate 4. The speed regulating Hall 13 is located above and in front of the speed regulating magnet 12, and the commutation Hall 3 is located on the left side of the commutation magnet 10.

[0025] The working principle of the present invention is as follows:

[0026] Initial motor locking state: the handle 5-1 of the reversing lever 5 is vertically downward, the steel ball 7 is stuck in the locking groove c under the action of the first spring 9, and the first boss 5-3 on the actuator 5-2 is stuck in the U-shaped groove f of the speed regulating slide plate 11, ensuring that the speed change push rod cannot be pushed, thereby playing a locking role.

[0027] Control the forward speed regulation of the motor: rotate the handle 5-1 clockwise, and the steel ball 7 is stuck in the forward rotation slot b under the action of the first spring 9, and the commutation magnet 10 installed on the commutation lever 5 is away from the commutation Hall 3. At this time, the commutation magnet 10 cannot sense the commutation Hall 3. Based on the Hall effect principle, the motor rotates forward. Since the commutation lever 5 rotates clockwise by a certain angle, the first boss 5-3 on the toggle 5-2 turns through the U-shaped slot f that leaves the speed regulation slide plate 11. At this time, the speed regulation push rod 2 can be pressed by hand. As it is pressed, the speed regulation push rod 2 compresses the speed regulation spring 14 and moves forward. The speed regulation slide plate 11 installed on the speed regulation push rod 2 drives the speed regulation magnet 12 to approach the speed regulation Hall 13. Based on the Hall effect principle, the motor speed gradually increases. When the speed regulation push rod 2 is released, the speed regulation push rod 2 moves backward under the action of the speed regulation spring 14, and the speed regulation slide plate 11 installed on the speed regulation push rod 2 drives the speed regulation magnet 12 to move away from the speed regulation Hall 13, and the motor speed gradually decreases, thereby realizing the forward speed regulation of the motor.

[0028] Control the motor reverse speed regulation: rotate the handle 5-1 counterclockwise, the steel ball 7 is stuck in the reverse slot d under the action of the first spring 9, and the commutation magnet 10 installed on the commutation lever 5 is close to the commutation Hall 3. At this time, the commutation magnet 10 senses the commutation Hall 3. Based on the Hall effect principle, the motor reverses. Since the commutation lever 5 rotates counterclockwise by a certain angle, the first boss 5-3 on the toggle 5-2 turns through the U-shaped slot f that leaves the speed regulating slide plate 11. At this time, the speed regulating push rod 2 can be pressed by hand. As the pressure is pressed, the speed regulating push rod 2 compresses the speed regulating spring 14 and moves forward. The speed regulating slide plate 11 installed on the speed regulating push rod 2 drives the speed regulating magnet 12 to approach the speed regulating Hall 13. Based on the Hall effect principle, the motor speed gradually increases. When the speed regulating push rod 2 is released, the speed regulating push rod 2 moves backward under the action of the speed regulating spring 14, and the speed regulating slide plate 11 installed on the speed regulating push rod 2 drives the speed regulating magnet 12 away from the speed regulating Hall 13, and the motor speed gradually decreases, thereby realizing the reverse speed regulation of the motor.

Claims

1. A reversing speed control device, characterized in that: A reversing lever (5) is arranged on the trigger seat (1), a reversing latch mechanism is arranged between the reversing lever (5) and the trigger seat (1), a reversing magnet (10) is arranged on the reversing lever (5), a speed regulating push rod (2) is arranged at the center of the reversing lever (5), a speed regulating spring (14) is arranged between the end of the speed regulating push rod (2) and the trigger seat (1), a speed regulating slide plate (11) is arranged on the speed regulating push rod (2), a locking structure is arranged between the speed regulating slide plate (11) and the reversing lever (5), and the speed regulating slide plate (11) A speed regulating magnet (12) is arranged on the trigger seat (1), a Hall mounting plate (4) is arranged on the trigger seat (1) directly above the speed regulating slide plate (11), a speed regulating sliding groove (a) is formed between the Hall mounting plate (4) and the trigger seat (1), a speed regulating Hall (13) corresponding to the speed regulating magnet (12) and a commutation Hall (3) corresponding to the commutation magnet (10) are arranged on the Hall mounting plate (4), the commutation Hall (3) is located on one side of the circumference of the commutation magnet (10), and the speed regulating Hall (13) is located above and in front of the speed regulating magnet (12); The reversing lever (5) is a ring-shaped actuator (5-2) having a handle (5-1) disposed on one end surface thereof, wherein the handle (5-1) and the actuator (5-2) are integrally connected; The reversing latch mechanism is a vertical mounting hole machined on the top of the trigger seat (1), in which a first top screw (8), a first spring (9), and a steel ball (7) are arranged in sequence from top to bottom. Three spherical crown-shaped grooves corresponding to the steel ball (7) are machined along the circumferential direction on the outer side wall of the toggle device (5-2) of the reversing lever (5), which are a forward rotation slot (b), a locking slot (c), and a reverse rotation slot (d). Under the action of the first spring (9), the steel ball (7) is stuck in the forward rotation slot (b), the locking slot (c), or the reverse rotation slot (d); The speed regulating slide plate (11) is snap-connected to the speed regulating push rod (2); the connecting end of the speed regulating slide plate (11) and the speed regulating push rod (2) is a rectangular structure and has outwardly protruding second bosses (11-1) machined on both sides; and the upper surface of the speed regulating push rod (2) is machined with a special-shaped groove (g) matching the shape of the connecting end of the speed regulating slide plate (11).

2. The reversing speed control device according to claim 1, characterized in that: The toggle member (5-2) of the reversing lever (5) is also processed with a semi-circular limiting groove (e) in the circumference, and two limiting pins are symmetrically arranged on the left and right sides of the trigger seat (1), and the ends of the two limiting pins extend into the limiting groove (e).

3. The reversing speed control device according to claim 1, characterized in that: The locking structure is a first boss (5-3) protruding inwardly processed on the reversing lever (5), the first boss (5-3) being located axially directly in front of the locking slot (c), and a U-shaped slot (f) opening upwardly processed on the upper surface of the speed regulating slide plate (11), the first boss (5-3) matching the U-shaped slot (f).

4. The reversing speed control device according to claim 1, characterized in that: A sealing ring is provided between the trigger seat (1) and the reversing lever (5), and a sealing ring is provided between the reversing lever (5) and the speed regulating push rod (2).

5. The reversing speed control device according to claim 4, characterized in that: The sealing ring is made of fluororubber.

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