CN111431334A

CN111431334A - Adjustable vibration motor

Info

Publication number: CN111431334A
Application number: CN202010401959.1A
Authority: CN
Inventors: 胡振华
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-05-13
Filing date: 2020-05-13
Publication date: 2020-07-17

Abstract

The invention provides an adjustable vibration motor, which comprises a driving motor, wherein piston pipes which are uniformly distributed around the circumference of a main shaft are fixed on the main shaft of the driving motor, a piston is arranged in each piston pipe, and each piston is connected with an adjusting block; one end of each piston tube close to the main shaft is communicated with each other and is simultaneously communicated with the inner end of one counterweight sliding tube, and the counterweight sliding tubes extend outwards along the radius of the main shaft; a sliding block is arranged in the counterweight sliding pipe, is connected with the counterweight block and is constrained by a constraint spring, so that the sliding block is pulled towards or pushed against the outer end of the counterweight sliding pipe in a natural state; the space between each piston and the slider remains airtight. The vibration motor can adjust the output amplitude according to specific working conditions in the vibration operation process so as to reduce energy consumption and improve the vibration effect.

Description

Adjustable vibration motor

Technical Field

The invention relates to the field of electric machinery, in particular to a vibration motor.

Background

When a vibration motor is used for loosening and unloading fixed objects such as bolts and the like, the objects are in a relatively fastened state at the beginning, so that the vibration motor can be greatly vibrated, more energy is consumed, a good loosening and unloading effect cannot be brought, and excessive mechanical impact is caused on the motor, so that the vibration motor is optimally vibrated at high frequency and low amplitude at the beginning of vibration; after a period of loosening and unloading operation is carried out, the vibrated object is in a loosening state, and the vibrating motor is required to shake the vibrated object greatly, so that a good loosening and unloading effect can be obtained. However, the existing vibration motor can only adjust the rotating speed when in work, and the amplitude of the vibration motor is basically fixed, so that the energy consumption of vibration output is large, and the effect is poor.

Disclosure of Invention

In view of the above problems, an object of the present invention is to provide an adjustable vibration motor, which can adjust an output amplitude according to a specific working condition during a vibration operation to reduce energy consumption and improve a vibration effect.

The technical scheme adopted by the invention for solving the technical problems is as follows: the adjustable vibration motor comprises a driving motor, wherein piston pipes which are uniformly distributed around the circumference of a main shaft are fixed on the main shaft of the driving motor, a piston is arranged in each piston pipe, and each piston is connected with an adjusting block; one end of each piston tube close to the main shaft is communicated with each other and is simultaneously communicated with the inner end of one counterweight sliding tube, and the counterweight sliding tubes extend outwards along the radius of the main shaft; a sliding block is arranged in the counterweight sliding pipe, is connected with the counterweight block and is constrained by a constraint spring, so that the sliding block is pulled towards or pushed against the outer end of the counterweight sliding pipe in a natural state; the space between each piston and the slider remains airtight.

Preferably, the adjusting block corresponding to each piston is arranged outside each piston tube, and each piston is connected with the adjusting block through a connecting rod penetrating through the end part of the piston tube.

Preferably, the sliding block is connected with the balancing weight through a sliding rod penetrating through the end part of the balancing weight sliding pipe.

Preferably, the total weight of each adjusting block is 1.2-1.5 times of the balancing weight, so that the burden of the restraining spring is not too large when the adjusting effect of the adjusting blocks is guaranteed.

Preferably, the space between the piston and the slide is filled with a liquid, so that this region cannot be compressed, and the linkage between the piston and the slide is completely free from delay. Further, the liquid is hydraulic oil or counterweight liquid.

Preferably, the driving motor is provided with a speed regulator, the speed regulator is coupled to a single chip microcomputer module, and the single chip microcomputer module controls the rotating speed of the driving motor; and the driving motor is also provided with a vibration sensing module, the vibration sensing module feeds instantaneous vibration information of the driving motor back to the single chip microcomputer module, and the single chip microcomputer module adjusts the rotating speed of the driving motor according to the rule that the larger the amplitude is, the lower the rotating speed is. Further, the vibration sensing module is a position sensor, the position sensor transmits real-time position data of the position sensor to the single chip microcomputer module, and the single chip microcomputer module calculates an average value of absolute values of the real-time position data to obtain the amplitude of the driving motor. Or the vibration sensing module is a modular electric module and comprises a group of vibration switches, wherein the switching-on threshold of each vibration switch is divided into more than 5 gears from small to large, and the higher the gear is, the larger the amplitude required by switching-on is; each vibration switch is respectively connected in series with a current-limiting resistor and then connected in parallel to form a vibration switch group, one end of a series circuit formed by the vibration switch group and a power supply in series is grounded, and one end of the series circuit is connected with one mode electricity pin of the singlechip module.

The invention has the beneficial effects that: the adjustable vibration motor can firstly enable the driving motor to keep high-speed rotation at the beginning of vibration starting, and the sum of the centrifugal force of each adjusting block overcomes the sum of the centrifugal force of the balancing weight and the centrifugal force of the restraining spring at the moment, so that the balancing weight is pulled to a position close to a main shaft of the driving motor, the gravity center of the whole system is close to the main shaft, and smaller amplitude is output; the rotating speed of the driving motor is gradually reduced along with the gradual loosening of the vibrated object, the centrifugal action of each adjusting block is weakened, and the constraint spring enables the balancing weight to gradually move away from the main shaft of the driving motor, namely, the gravity center of the whole system gradually moves away from the main shaft to output larger amplitude; therefore, the optimized vibration output which accords with the actual working condition is obtained, and the vibration operation effect is improved while the energy consumption is reduced.

Drawings

Fig. 1 is a schematic view of the adjustable vibration motor at a low rotation speed according to an embodiment of the present invention.

Fig. 2 is a schematic view of the adjustable vibration motor at a high rotation speed according to an embodiment of the present invention.

Fig. 3 is a schematic view of a second embodiment of the adjustable vibration motor.

Fig. 4 is a schematic view of an embodiment of a vibration sensing module and a single chip module in the adjustable vibration motor.

Detailed Description

The invention is further illustrated with reference to the following figures and examples:

the first embodiment is as follows:

in the first embodiment shown in fig. 1 and 2, the adjustable vibration motor includes a driving motor 1, two piston tubes 2 symmetrical around the circumference of the main shaft are fixed on a main shaft 10 of the driving motor 1, a piston 20 is respectively arranged in each piston tube 2, and each piston 20 is connected with an adjusting block 22 through a connecting rod 21 penetrating through the end of the piston tube 2.

One end of each piston tube 2 close to the main shaft 10 is communicated with each other and is simultaneously communicated with the inner end of one counterweight sliding tube 3, and the counterweight sliding tube 3 extends outwards along the radius of the main shaft 10; the weight-balancing sliding tube 3 is internally provided with a sliding block 30, and the sliding block 30 is connected with a balancing weight 32 through a sliding rod 31 penetrating through the end part of the weight-balancing sliding tube 3. And the sliding block 30 is restrained by a restraining spring 33, so that the sliding block 30 is pulled to the outer end of the counterweight sliding pipe 3 in a natural state as shown in figure 1; the space between each piston 20 and the slider 30 is kept airtight.

In the above vibration motor, the total weight of each adjusting block 22 is 1.2-1.5 times of the weight block 32, so that the burden of the restraining spring 33 is not too large when the adjusting effect of the adjusting block 22 is ensured.

At the beginning of starting vibration, the adjustable vibration motor can firstly enable the driving motor 1 to keep rotating at a high speed, at the moment, the sum of centrifugal forces of the adjusting blocks 22 overcomes the sum of the centrifugal force of the balancing weight 32 and the centrifugal force of the restraining spring 33, so that the balancing weight 32 is pulled to a position close to the main shaft 10 of the driving motor 1, namely as shown in fig. 2, the gravity center of the whole system is close to the main shaft, and a smaller amplitude is output; as the vibrated object gradually loosens, the rotating speed of the driving motor 1 is gradually reduced, the centrifugal action of each adjusting block 22 is weakened, and the restraining spring 33 gradually keeps the counterweight block 32 away from the main shaft 10 of the driving motor 1, that is, the center of gravity of the whole system is gradually kept away from the main shaft 10, so as to output a larger amplitude; therefore, the optimized vibration output which accords with the actual working condition is obtained, and the vibration operation effect is improved while the energy consumption is reduced.

Example two:

fig. 3 is a second embodiment of the adjustable vibration motor, which is different from the first embodiment in that: the space between the piston 20 and the slider 30 is filled with liquid, so that this area cannot be compressed, and the linkage between the piston 20 and the slider 30 is completely free from delay. Further, the liquid may be a weighted liquid, such as mercury or other heavy metal solution. Therefore, the liquid can not only eliminate the time delay linkage phenomenon between the piston 20 and the sliding block 30, but also move back and forth between the piston tube 2 and the counterweight sliding tube 3 as a part of the counterweight body, thereby fully improving the adjustment capability of the gravity center of the whole system.

In addition, in order to realize the automatic adjustment of the rotating speed of the driving motor 1, a combination of a vibration sensing module, a singlechip module and a speed regulator can be adopted for adjustment. If the vibration sensing module adopts a position sensor, the position sensor transmits the real-time position data of the position sensor to the single chip microcomputer module, and the single chip microcomputer module calculates the average value of the absolute values of the real-time position data to obtain the amplitude of the driving motor 1; then, the rotation speed of the drive motor 1 is adjusted on the basis of the principle that the amplitude is inversely related to the rotation speed, for example, the rotation speed = (amplitude/k) + w, k, w being constant.

In order to save cost, the position sensor can be omitted, a mode electric module is used as the vibration sensing module, and specifically, as shown in fig. 4, the vibration sensing module comprises a group of vibration switches K1-K6, wherein the turn-on threshold of each vibration switch is divided into 6 steps from small to large, and the higher the shift is, the larger the amplitude required for turn-on is; each vibration switch is respectively connected in series with a current-limiting resistor R and then connected in parallel to form a vibration switch group, one end of a series circuit formed by the vibration switch group and a power supply U in series is grounded, and the other end of the series circuit is connected with one mode electric pin of the singlechip module. Therefore, the larger the amplitude is, the larger the number of the vibration switches which are switched on is, the smaller the overall resistance of the vibration switch group is, and the larger the input current of the mode electric pin of the singlechip module is.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, but rather as the subject matter of the invention is intended to cover all modifications, equivalents and alternatives falling within the spirit and scope of the present invention.

Claims

1. The utility model provides a vibrating motor with adjustable, includes driving motor (1), its characterized in that: piston pipes (2) which are uniformly distributed around the circumference of a main shaft are fixed on the main shaft (10) of the driving motor (1), a piston (20) is arranged in each piston pipe (2), and each piston (20) is connected with an adjusting block (22); one end of each piston tube (2) close to the main shaft (10) is communicated with each other and is simultaneously communicated with the inner end of one counterweight sliding tube (3), and the counterweight sliding tube (3) extends outwards along the radius of the main shaft (10); a sliding block (30) is arranged in the counterweight sliding pipe (3), the sliding block (30) is connected with a counterweight block (32), and the sliding block (30) is restrained by a restraining spring (33), so that the sliding block (30) is pulled towards or pushed against the outer end of the counterweight sliding pipe (3) in a natural state; the space between each piston (20) and the slider (3) is kept airtight.

2. The adjustable vibration motor according to claim 1, wherein: the adjusting blocks (22) corresponding to the pistons (20) are arranged outside the piston tubes, and the pistons (20) are connected with the adjusting blocks (22) through connecting rods (21) penetrating through the end parts of the piston tubes.

3. The adjustable vibration motor according to claim 1, wherein: the sliding block (30) is connected with the balancing weight (32) through a sliding rod (31) penetrating through the end part of the balancing weight sliding pipe.

4. The adjustable vibration motor according to any one of claims 1 to 3, wherein: the total weight of each adjusting block (22) is 1.2-1.5 times of the balancing weight (32).

5. The adjustable vibration motor according to any one of claims 1 to 3, wherein: the space between the piston (20) and the slider (30) is filled with liquid.

6. The adjustable vibration motor of claim 5, wherein: the liquid is a weight liquid.

7. The adjustable vibration motor according to any one of claims 1 to 3, wherein: the driving motor (1) is provided with a speed regulator, the speed regulator is coupled to a single chip microcomputer module, and the single chip microcomputer module controls the rotating speed of the driving motor (1); and the driving motor (1) is also provided with a vibration sensing module, the vibration sensing module feeds instantaneous vibration information of the driving motor back to the single chip microcomputer module, and the single chip microcomputer module adjusts the rotating speed of the driving motor according to the rule that the larger the amplitude is, the lower the rotating speed is.

8. The adjustable vibration motor of claim 7, wherein: the vibration sensing module is a position sensor, the position sensor transmits real-time position data of the position sensor to the single chip microcomputer module, and the single chip microcomputer module calculates the average value of the absolute value of the real-time position data to obtain the amplitude of the driving motor.

9. The adjustable vibration motor of claim 7, wherein: the vibration sensing module is a modular electric module and comprises a group of vibration switches, wherein the switching-on threshold of each vibration switch is divided into more than 5 gears from small to large, and the higher the gear is, the larger the amplitude required by switching-on is; each vibration switch is respectively connected in series with a current-limiting resistor and then connected in parallel to form a vibration switch group, one end of a series circuit formed by the vibration switch group and a power supply in series is grounded, and one end of the series circuit is connected with one mode electricity pin of the singlechip module.