CN215417748U

CN215417748U - Variable frequency transformer for electric power engineering

Info

Publication number: CN215417748U
Application number: CN202121665181.1U
Authority: CN
Inventors: 李承刚
Original assignee: Qingdao Zhongnuo Construction Group Co ltd
Current assignee: Qingdao Zhongnuo Construction Group Co ltd
Priority date: 2021-07-21
Filing date: 2021-07-21
Publication date: 2022-01-04
Anticipated expiration: 2031-07-21

Abstract

The utility model relates to the technical field of power transformers and discloses a variable frequency transformer for power engineering, which comprises a fixed box, wherein two groups of ventilation shutters are respectively arranged on the left side and the right side of the fixed box, a plurality of groups of exhaust fans are arranged on the left side of the fixed box, the outer side surfaces of the plurality of groups of exhaust fans are fixedly connected with the inner wall of the left side of the fixed box, and the front side and the rear side of the inner wall of the bottom of the fixed box are respectively fixedly connected with the lower surfaces of two groups of sliding rails. This frequency conversion transformer for electric power engineering, through the regulating block, adjust the cooperation of mechanisms such as pole and regulating plate, make the piston rod receive external force when contracting downwards, the pressure in the space of push pedal below increases in the twinkling of an eye, thereby produce great reaction force, and then avoid leading to compression spring impaired because of compression spring receives too big pressure in the short time, in the space of damping oil inflow push pedal top under the effect of pressure difference, and form new gravity balance, and then can improve compression spring's life.

Description

Variable frequency transformer for electric power engineering

Technical Field

The utility model relates to the technical field of power transformers, in particular to a variable frequency transformer for power engineering.

Background

Variable Frequency Transformer (VFT) is a kind of novel flexible ac transmission system equipment that can connect asynchronous power grid, it is a kind of novel asynchronous power grid interconnection device that has integrated the transformer, move looks ware, hydraulic generator, double-fed motor and dc drive etc. technique, but the current transformer main part is because of the volume is different, after the installation is fixed the shock attenuation effect is not concentrated, cause the shock attenuation effect poor, and at its during operation, can cause very big noise because of vibrations, also greatly influenced people's normal life work and rest.

Chinese patent publication No. CN207800343U discloses a frequency conversion transformer, which comprises a case, a base, a first chute, a slide block, an adjusting shaft, a shock-absorbing seat, a support rod, a top plate, a support plate, a transformer main body, a ball, a second chute, a heat dissipation hole, a motor, a fan and sound-absorbing cotton, wherein the bottom of the case is provided with the base, the upper end of the base is provided with the first chute, and the slide block is arranged in the first chute, the utility model has scientific and reasonable structure, the existing transformer main body can not adjust the bottom shock-absorbing device after being fixed on the support plate due to different sizes, the shock-absorbing effect can not reach the best, the utility model adjusts a rotary button, the adjusting shaft rotates, the slide block slides inwards along with the rotation of the adjusting shaft or outwards, the shock-absorbing seat slides along with the slide block, the shock-absorbing seat is moved to the best point of the stress under the transformer main body through the slide block, thereby achieving the best shock-absorbing effect, meanwhile, the support device can play a good role in supporting. However, the device only damps the vibration through the strength of the spring, so that the requirement on the specification of the spring is high, and the service life of the spring is easily reduced.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Aiming at the defects of the prior art, the utility model provides a variable frequency transformer for power engineering, which solves the problems that the conventional device only performs vibration reduction through the strength of a spring, has higher requirements on the specification of the spring and is easy to cause the reduction of the service life of the spring.

(II) technical scheme

In order to achieve the purpose, the utility model provides the following technical scheme: a variable frequency transformer for electric power engineering comprises a fixed box, wherein two sets of ventilation shutters are respectively arranged on the left side and the right side of the fixed box, a plurality of sets of exhaust fans are arranged on the left side of the fixed box, the outer side surfaces of the exhaust fans are fixedly connected with the inner wall of the left side of the fixed box, the front side and the rear side of the inner wall of the bottom of the fixed box are respectively fixedly connected with the lower surfaces of two sets of slide rails, the outer surfaces of the two sets of slide rails are respectively connected with the inner walls of the bottoms of four sets of ball nuts in a sliding manner, the inner walls of the two sets of ball nuts on the front side in the four sets of ball nuts are respectively in threaded connection with the left side and the right side of the outer surface of a bidirectional threaded screw, the left side surfaces of a bidirectional threaded screw and a bidirectional threaded screw are respectively in threaded connection with the inner wall of the left side of the fixed box, the right side surfaces of the first bidirectional threaded screw rod and the second bidirectional threaded screw rod penetrate through the inner wall of the right side of the fixed box, the right side of the outer surface of the first bidirectional threaded screw rod is fixedly connected with the inner wall of the first chain wheel, the right side of the outer surface of the bidirectional threaded screw rod is fixedly connected with the inner wall of the second chain wheel, the outer surface of the second chain wheel is in transmission connection with the inner wall of the rear side of the transmission chain, the outer surface of the first chain wheel is in transmission connection with the inner wall of the right side of the transmission chain, the upper surfaces of the four groups of ball nuts are fixedly connected with the lower surface of a group of vibration dampers, each vibration damper comprises a fixed cylinder, the lower surface of the fixed cylinder is fixedly connected with the upper surface of the ball nut, a group of compression springs are arranged inside the fixed cylinder, the tops of the compression springs are in contact with the lower surface of the push plate, the inner wall of the push plate is fixedly connected with the bottom of the outer surface of the piston rod, and the middle part of the outer surface of the piston rod is in sliding connection with the inner wall of the tops of the push plate, the below of push pedal is provided with a set of regulating plate, the upper surface of regulating plate and the lower fixed surface who adjusts the pole are connected, the surface of adjusting the pole rotates with the inner wall of piston rod to be connected, the top of piston rod and the bottom sliding connection of fixed plate.

Preferably, soundproof cotton is filled in the box wall of the fixed box, a box cover is arranged above the fixed box and is clamped with the inner wall of the top of the fixed box, and soundproof cotton is filled in the box cover.

Preferably, the inner sides of the two groups of ventilation shutters are provided with a group of filter screens, and the outer side surfaces of the two groups of filter screens are fixedly connected with the inner wall of the left side and the inner wall of the right side of the fixed box respectively.

Preferably, a set of sliding grooves is formed in the front side and the rear side of the lower surface of the fixing plate, and the four sets of piston rods are connected with the fixing plate through the two sets of sliding grooves.

Preferably, the top of the outer surface of the piston rod is provided with a group of adjusting grooves in a penetrating manner, a group of adjusting blocks are arranged in the adjusting grooves, and the left side surface of each adjusting block is fixedly connected with the top of the outer surface of the adjusting rod.

Preferably, the fixed cylinder is filled with damping oil, and the right side surface of the first bidirectional threaded lead screw is fixedly connected with the left side surface of the group of turnplates.

(III) advantageous effects

Compared with the prior art, the utility model provides a variable frequency transformer for power engineering, which has the following beneficial effects:

1. this frequency conversion transformer for electric power engineering, through the regulating block, adjust the cooperation of mechanisms such as pole and regulating plate, make the piston rod receive external force when contracting downwards, the pressure in the space of push pedal below increases in the twinkling of an eye, thereby produce great reaction force, and then avoid leading to compression spring impaired because of compression spring receives too big pressure in the short time, in the space of damping oil inflow push pedal top under the effect of pressure difference, and form new gravity balance, and then can improve compression spring's life.

2. This frequency conversion transformer for electric power engineering, through the cooperation of regulating block and regulation pole, the relative position of adjustment regulating plate and push pedal to the speed that control damping oil flows, and then the buffering dynamics of control shock absorber has improved the device's controllability, through the cooperation of sprocket one, sprocket two and driving chain, make the carousel can control two-way screw lead screw one and two-way screw lead screw two synchronous rotations, thereby it is more convenient to make the device's regulation, has improved the practicality of device.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a right side view of the structure of the present invention;

fig. 3 is a schematic structural view of the damper of the present invention.

In the figure: 1. a fixed box; 2. a ventilation louver; 3. an exhaust fan; 4. a slide rail; 5. a ball nut; 6. a first bidirectional threaded lead screw; 7. a two-way threaded screw rod II; 8. a shock absorber; 801. a fixed cylinder; 802. a compression spring; 803. pushing the plate; 804. a piston rod; 805. an adjusting plate; 806. adjusting a rod; 9. a chain wheel I; 10. a second chain wheel; 11. a drive chain; 12. and (7) fixing the plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a frequency conversion transformer for electric power engineering comprises a fixed box 1, wherein the left side and the right side of the fixed box 1 are respectively provided with two groups of ventilation shutters 2, the left side of the fixed box 1 is provided with a plurality of groups of exhaust fans 3, the outer side surfaces of the plurality of groups of exhaust fans 3 are fixedly connected with the inner wall of the left side of the fixed box 1, the front side and the rear side of the inner wall of the bottom of the fixed box 1 are respectively fixedly connected with the lower surfaces of two groups of slide rails 4, the outer surfaces of the two groups of slide rails 4 are respectively connected with the inner wall of the bottom of four groups of ball nuts 5 in a sliding manner, the inner walls of the two groups of ball nuts 5 at the front side of the four groups of ball nuts 5 are respectively connected with the left side and the right side of the outer surface of a two-way screw rod I6, the inner wall of the two-way screw rod II 7 is respectively connected with the left side of the fixed box 1 in a rotating manner, the right side surfaces of a bidirectional threaded screw rod I6 and a bidirectional threaded screw rod II 7 penetrate through the inner wall of the right side of the fixed box 1, the right side of the outer surface of the bidirectional threaded screw rod I6 is fixedly connected with the inner wall of a chain wheel I9, the right side of the outer surface of the bidirectional threaded screw rod II 7 is fixedly connected with the inner wall of a chain wheel II 10, the outer surface of the chain wheel II 10 is in transmission connection with the inner wall of the rear side of a transmission chain 11, the outer surface of the chain wheel I9 is in transmission connection with the inner wall of the right side of the transmission chain 11, the upper surfaces of four groups of ball nuts 5 are fixedly connected with the lower surfaces of a group of vibration dampers 8, each vibration damper 8 comprises a fixed cylinder 801, the lower surface of the fixed cylinder 801 is fixedly connected with the upper surface of the ball nut 5, a group of compression springs 802 are arranged inside the fixed cylinder 801, the tops of the compression springs 802 are in contact with the lower surface of a push plate 803, the inner wall of the push plate 803 is fixedly connected with the bottom of the outer surface of a piston rod 804, and the middle of the outer surface of the piston rod 804 is in sliding connection with the inner wall of the top of the push plate 803, a group of adjusting plates 805 are arranged below the push plate 803, the upper surfaces of the adjusting plates 805 are fixedly connected with the lower surfaces of the adjusting rods 806, the outer surfaces of the adjusting rods 806 are rotatably connected with the inner walls of the piston rods 804, and the tops of the piston rods 804 are slidably connected with the bottom of the fixed plate 12.

Specifically, for the soundproof effect of improvement device, the tank wall intussuseption of fixed case 1 is filled with soundproof cotton, and for the convenience of the installation of transformer body, the top of fixed case 1 is provided with the case lid, and case lid and the joint of fixed 1 top inner walls of case, the inside packing of case lid has soundproof cotton.

Specifically, in order to avoid sundries from entering the device, a set of filter screens are arranged on the inner sides of the two sets of ventilation shutters 2, and the outer side surfaces of the two sets of filter screens are fixedly connected with the inner wall on the left side and the inner wall on the right side of the fixed box 1 respectively.

Specifically, in order to facilitate the sliding of the damper 8, a set of sliding grooves are respectively formed on the front side and the rear side of the lower surface of the fixing plate 12, and the four sets of piston rods 804 are connected with the fixing plate 12 through the two sets of sliding grooves.

Specifically, in order to facilitate the control of the rotation of the adjusting plate 805, a set of adjusting grooves are formed in the top of the outer surface of the piston rod 804 in a penetrating manner, a set of adjusting blocks are arranged in the adjusting grooves, and the left side surfaces of the adjusting blocks are fixedly connected with the top of the outer surface of the adjusting rod 806.

Specifically, in order to reduce the instantaneous acting force of the external force on the compression spring 802, the fixed cylinder 801 is filled with damping oil, so that the sliding resistance of the piston rod 804 is increased, and in order to adjust the position of the ball nut 5 by hands, the right side surface of the bidirectional threaded screw rod one 6 is fixedly connected with the left side surface of the group of turntables.

The working principle is as follows: rotating the turntable, the turntable drives the bidirectional threaded screw rod I6 to rotate, the bidirectional threaded screw rod I6 drives the chain wheel II 10 and the bidirectional threaded screw rod II 7 to rotate through the chain wheel I9 and the transmission chain 11, so as to cause the four groups of ball nuts 5 to slide, the position of the shock absorber 8 is adjusted, the transformer is fixed on the fixing plate 12, when the piston rod 804 is pressed to slide downwards, the pressure in the space below the push plate 803 is increased to form a reaction force, the instantaneous pressure on the compression spring 802 is reduced, the damping oil flows into the space above the push plate 803 through the adjusting plate 805 and the push plate 803 under the action of pressure difference, so that the compression spring 802 is gradually stressed and forms new gravity balance, the overlap ratio of the adjusting plate 805 and the push plate 803 is adjusted through the rotation of the adjusting block and the adjusting rod 806, so as to control the speed of the damping oil passing through the push plate 803, and further control the buffer strength of the shock absorber 8, through the cooperation of the ventilating shutter 2 and the exhaust fan 3, good ventilation in the device is ensured, and rainwater, sundries and the like are prevented from entering the device.

To sum up, in the frequency conversion transformer for electric power engineering, through the cooperation of the adjusting block, the adjusting rod 806, the adjusting plate 805 and other mechanisms, when the piston rod 804 is contracted downwards by an external force, the pressure in the space below the push plate 803 is increased instantly, so as to generate a larger reaction force, further avoid the damage of the compression spring 802 caused by the excessive pressure applied to the compression spring 802 in a short time, and the damping oil flows into the space above the push plate 803 under the action of pressure difference, and form a new gravity balance, so as to improve the service life of the compression spring 802, through the cooperation of the adjusting block and the adjusting rod 806, the relative position of the adjusting plate 805 and the push plate 803 is adjusted, so as to control the flowing speed of the damping oil, further control the buffering force of the damper, improve the adjustability of the device, through the cooperation of the first sprocket 9, the second sprocket 10 and the transmission chain 11, so that the turntable can control the synchronous rotation of the first bidirectional threaded lead screw 6 and the second bidirectional threaded lead screw 7, therefore, the device is more convenient to adjust, and the practicability of the device is improved.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a frequency conversion transformer for electric power engineering, includes fixed case (1), its characterized in that: the left side and the right side of the fixed box (1) are respectively provided with two groups of ventilation shutters (2), the left side of the fixed box (1) is provided with a plurality of groups of exhaust fans (3), the outer side surfaces of the plurality of groups of exhaust fans (3) are fixedly connected with the inner wall of the left side of the fixed box (1), the front side and the rear side of the inner wall of the bottom of the fixed box (1) are respectively fixedly connected with the lower surfaces of two groups of slide rails (4), the outer surfaces of the two groups of slide rails (4) are respectively in sliding connection with the inner walls of the bottoms of four groups of ball nuts (5), the inner walls of the two groups of ball nuts (5) at the front side in the four groups of ball nuts (5) are respectively in threaded connection with the left side and the right side of the outer surface of a first bidirectional threaded screw (6), the inner walls of the two groups of ball nuts (5) at the rear side in the four groups of ball nuts (5) are respectively in threaded connection with the left side and the right side of the outer surface of a second bidirectional threaded screw (7), the left side surfaces of the two-way threaded screw rod I (6) and the two-way threaded screw rod II (7) are rotatably connected with the inner wall of the left side of the fixed box (1), the right side surfaces of the two-way threaded screw rod I (6) and the two-way threaded screw rod II (7) penetrate through the inner wall of the right side of the fixed box (1), the right side of the outer surface of the two-way threaded screw rod I (6) is fixedly connected with the inner wall of the chain wheel I (9), the right side of the outer surface of the two-way threaded screw rod II (7) is fixedly connected with the inner wall of the chain wheel II (10), the outer surface of the chain wheel II (10) is in transmission connection with the inner wall of the rear side of the transmission chain (11), the outer surface of the chain wheel I (9) is in transmission connection with the inner wall of the right side of the transmission chain (11), the upper surfaces of the four groups of ball nuts (5) are fixedly connected with the lower surfaces of one group of the shock absorbers (8), and each shock absorber (8) comprises a fixed cylinder (801), the lower surface of a fixed cylinder (801) is fixedly connected with the upper surface of a ball nut (5), the inside of a fixed cylinder (801) is provided with a set of compression spring (802), the top of the compression spring (802) contacts with the lower surface of a push plate (803), the inner wall of the push plate (803) is fixedly connected with the bottom of the outer surface of a piston rod (804), the middle of the outer surface of the piston rod (804) is slidably connected with the inner wall of the top of the push plate (803), a set of adjusting plate (805) is arranged below the push plate (803), the upper surface of the adjusting plate (805) is fixedly connected with the lower surface of an adjusting rod (806), the outer surface of the adjusting rod (806) is rotatably connected with the inner wall of the piston rod (804), and the top of the piston rod (804) is slidably connected with the bottom of a fixed plate (12).

2. The variable frequency transformer for electric power engineering according to claim 1, characterized in that: the box wall intussuseption of fixed case (1) is filled with soundproof cotton, the top of fixed case (1) is provided with the case lid, and the case lid has soundproof cotton with fixed case (1) top inner wall joint, and the inside packing of case lid has.

3. The variable frequency transformer for electric power engineering according to claim 1, characterized in that: the inner sides of the two groups of ventilation shutters (2) are provided with a group of filter screens, and the outer side surfaces of the two groups of filter screens are fixedly connected with the left inner wall and the right inner wall of the fixed box (1) respectively.

4. The variable frequency transformer for electric power engineering according to claim 1, characterized in that: a set of sliding grooves are formed in the front side and the rear side of the lower surface of the fixing plate (12), and the four sets of piston rods (804) are connected with the fixing plate (12) through the two sets of sliding grooves.

5. The variable frequency transformer for electric power engineering according to claim 1, characterized in that: the top of the outer surface of the piston rod (804) is provided with a group of adjusting grooves in a penetrating mode, a group of adjusting blocks are arranged in the adjusting grooves, and the left side face of each adjusting block is fixedly connected with the top of the outer surface of the adjusting rod (806).

6. The variable frequency transformer for electric power engineering according to claim 1, characterized in that: the damping oil is filled in the fixed cylinder (801), and the right side face of the first bidirectional threaded lead screw (6) is fixedly connected with the left side face of the group of turntables.