Resonance reactor automatic lifting device

Abstract

The utility model discloses an automatic lifting device for a resonance reactor, which comprises a speed reduction thrust mechanism, a resonance reactor lifting mechanism and a platform lifting mechanism, and is characterized in that a motor in the speed reduction thrust mechanism can drive a transmission lead screw to rotate, and drives a main shaft and a sliding block to translate along a horizontal sliding rod through a transmission nut; the resonance reactor lifting mechanism slides along with the sliding block through the thrust arm, so that the resonance reactor assembly rotates and ascends and descends around the supporting frame, and the end, deviating from the supporting frame, of the resonance reactor assembly ascends or descends. When the resonance reactor assembly is transported, loaded and unloaded, an automatic lifting platform does not need to be independently arranged, lifting and dropping of the speed reduction thrust mechanism and the resonance reactor lifting mechanism can be achieved through the platform lifting and dropping mechanism of the device, automatic leveling loading and unloading are completed, the number of personnel needed for transporting, loading and unloading is reduced, and the working efficiency is improved. The transportation efficiency is improved; and the transportation loading and unloading safety is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of power equipment, in particular to a resonant reactor used in withstand voltage test of power equipment, and specifically relates to an automatic lifting device for a resonant reactor. BACKGROUND

[0002] The resonant reactor is an electrical device working on the principle of series resonance. Its working principle is based on the principle of resonant circuit. The resonant reactor produces resonance phenomenon at a specific frequency by a resonant loop composed of appropriate inductance and capacitance. When the frequency of the external power source is close to the resonant frequency, the resonant reactor will exhibit very high impedance, thereby playing the role of filtering and isolating high-frequency noise. In the withstand voltage test of power equipment, the resonant reactor can cooperate with frequency conversion power supply, excitation transformer and capacitor divider, etc. The frequency conversion power supply provides power to the excitation transformer, which is then transformed into medium voltage and added to the reactor and the test product capacitor. By changing the output frequency of the frequency conversion power supply, the loop is in a series resonance state. Then, by adjusting the output voltage of the frequency conversion power supply, the voltage on the test product reaches the required voltage value. This device using the principle of series resonance greatly reduces the required power capacity, greatly reduces the weight and volume of the device, and can improve the output voltage waveform, effectively preventing the misbreakdown of the test product caused by harmonic peaks.

[0003] The resonant reactor is usually heavy and bulky. In the process of transportation and loading and unloading, an automatic lifting platform is needed to cooperate with the loading and unloading of the resonant reactor. The transportation and loading and unloading of the resonant reactor and the automatic lifting platform all need to be loaded and unloaded by a crane. In actual application, this hoisting method brings the following problems:

[0004] 1. Multiple people are needed to command and operate during loading and unloading, which seriously wastes labor and is inefficient.

[0005] 2. The environment of the substation is complex. If the safe distance between the crane parking point and the travel route and the ditch is insufficient, the crane may overturn. In addition, there is a risk of falling of the lifting tool or the lifted object during hoisting, as well as the risk of hanging lines, which all pose great safety hazards.

[0006] Therefore, the current transportation and loading and unloading process of the resonant reactor and the automatic lifting platform relies heavily on manpower, is inefficient and has low safety, and a new technical solution is urgently needed to solve the problems in the prior art. CONTENT OF THE INVENTION

[0007] The present application provides an automatic lifting device for a resonant reactor to solve the problem of low efficiency in the current transportation and loading and unloading process of the resonant reactor and the automatic lifting platform.

[0008] In order to achieve the above object, the present application provides the following technical scheme:

[0009] The present application provides a kind of automatic lifting device of resonant reactor, including deceleration thrust mechanism, resonant reactor lifting mechanism and platform lifting mechanism, wherein:

[0010] Deceleration thrust mechanism includes chassis, opposite sides of chassis are respectively provided with horizontal slide bar, horizontal slide bar is provided with sliding block, two sliding blocks are installed on main shaft, the middle part of main shaft is provided with transmission nut, transmission nut is connected with transmission screw, transmission screw is perpendicular to main shaft, one end of transmission screw is connected with driving assembly, driving assembly is used to drive transmission screw to rotate, and then the main shaft and sliding block are translated along horizontal slide bar by transmission nut;

[0011] Resonant reactor lifting mechanism includes bottom plate arranged above chassis and two thrust arms, two support frames and resonant reactor assembly arranged above bottom plate, two thrust arms are oppositely spaced, two support frames are oppositely spaced, cylindrical resonant reactor assembly is hinged between two thrust arms and two support frames along the axial end thereof, the lower end of two thrust arms is respectively hinged with a sliding block through bottom plate, and slot is formed on the bottom plate above horizontal slide bar.

[0012] Platform lifting mechanism includes a plurality of screw lifting assemblies arranged at the edge of bottom plate, screw lifting assembly includes mounting seat arranged above bottom plate, adjusting nut and driving member arranged on mounting seat, and support transmission shaft with external thread on the surface, the inner wall of adjusting nut is provided with internal thread matched with support transmission shaft, and driving member includes horizontal stud, horizontal stud is matched with external thread arranged on the outer wall of adjusting nut, and rotating horizontal stud can drive adjusting nut to lift along support transmission shaft.

[0013] In the above technical scheme, further, the chassis is square frame, the sliding block is installed on the horizontal slide bar and is slidably connected with the horizontal slide bar, the two sliding blocks are oppositely arranged along the length direction of the main shaft, the middle part of the main shaft is provided with a mounting hole, the transmission nut is fixedly installed in the mounting hole, the transmission nut is matched with the external thread of the outer wall of the transmission screw through the internal thread in the transmission nut, the driving assembly for driving the transmission screw includes motor and speed reducer.

[0014] Further, the bottom plate is fixed above the chassis, one thrust arm and one support frame are adjacently arranged on the same side of the bottom plate, the upper end of the thrust arm is connected with the resonant reactor assembly, the lower end of the thrust arm is hinged with a sliding block through the bottom plate, the thrust arm is obliquely arranged on the bottom plate, and the upper end of the thrust arm is close to the support frame;The main shaft and the sliding block can push the thrust arm to rotate around the connection point of the resonant reactor assembly, so as to make the resonant reactor assembly rotate and lift around the support rod.

[0015] Further, one end of the bottom plate is provided with a to-position support, the to-position support is arranged opposite to the support rod, and the to-position support is used to support the other end of the resonant reactor assembly along the axial direction thereof.

[0016] Further, the bottom plate is a rectangular frame structure, and one screw rod lifting assembly is arranged at each corner of the bottom plate; one end of the horizontal stud is provided with a rotating operation disc, and the other end of the horizontal stud is connected with the driving motor; and the bottom of the support transmission shaft is provided with a support base.

[0017] Compared with the prior art, the present application has at least the following beneficial effects:

[0018] Based on further analysis and research on the problems of the prior art, it is realized that the transportation and unloading process of the existing resonant reactor and automatic lifting platform is low in efficiency and relatively low in safety. Therefore, the present application provides a resonant reactor automatic lifting device, which mainly comprises a deceleration thrust mechanism, a resonant reactor lifting mechanism and a platform lifting mechanism. The deceleration thrust mechanism can drive the transmission screw rod to rotate through the driving assembly, and then drive the main shaft and the sliding block to translate along the horizontal slide rod through the transmission nut. The resonant reactor lifting mechanism is arranged above the chassis of the deceleration thrust mechanism, and the resonant reactor assembly with a cylindrical structure is supported and fixed by the thrust arm and the support frame. One end of the thrust arm is connected with the sliding block, and when the deceleration thrust mechanism is started, the thrust arm can be driven to slide with the sliding block, so that the resonant reactor assembly rotates and rises or falls around the support rod, and the end of the resonant reactor assembly away from the support frame is lifted or lowered. The platform lifting mechanism in the present application is installed on the bottom plate of the resonant reactor lifting mechanism, which can lift and lower the deceleration thrust mechanism and the resonant reactor lifting mechanism as a whole. The platform lifting mechanism realizes the conversion between rotary motion and linear motion through the thread engagement transmission between the driving part, the adjusting nut and the support transmission shaft, and realizes the automatic lifting of the resonant reactor. It can be seen that the platform lifting mechanism in the present application can lift the deceleration thrust mechanism and the resonant reactor lifting mechanism as a whole, and realize the overall lifting. In the transportation and unloading of the resonant reactor, the automatic lifting platform does not need to be separately provided, and the hoisting and transportation of the automatic lifting platform is avoided. The device can start the platform lifting mechanism with one key, automatically level the vehicle loading and unloading, reduce the number of personnel required for transportation and unloading, reduce the transportation cost, improve the transportation efficiency and improve the safety of transportation and unloading. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. It should be understood that the specific shapes and structures shown in the drawings should not generally be regarded as limiting conditions for implementing the present application; for example, based on the technical concepts and exemplary drawings disclosed in this application, those skilled in the art are able to easily make routine adjustments or further optimizations to the addition / reduction / attribution division, specific shapes, positional relationships, connection methods, and dimensional ratios of certain units (components).

[0020] Figure 1 This is a schematic diagram of the overall structure of the automatic lifting and lowering device for a resonant reactor provided by the present application in an embodiment;

[0021] Figure 2 is Figure 1 A schematic diagram of the structure remaining after removing the resonant reactor assembly from the base;

[0022] Figure 3 is Figure 2 A schematic diagram of the structure of the remaining structure after removing a part of the bottom plate, mainly showing the structural installation position of the deceleration thrust mechanism under the bottom plate;

[0023] Figure 4 This is a partial structural diagram of the deceleration thrust mechanism in the present application in one embodiment;

[0024] Figure 5 The diagram is a structural diagram of the lead screw lifting assembly in the present application in one embodiment.

[0025] Description of reference numerals:

[0026] 1. Chassis; 2. Horizontal slide bar; 3. Sliding block; 4. Main shaft; 5. Transmission nut; 6. Base plate; 7. Thrust arm; 8. Support frame; 9. Resonant inductor assembly; 10. Groove; 11. Mounting seat; 12. Adjusting nut; 13. Horizontal stud; 14. Support transmission shaft; 15. Support base; 16. Support member in place; 17. Support member; 18. Transmission screw. DETAILED DESCRIPTION

[0027] The present application will be further described below in detail through specific embodiments in conjunction with the accompanying drawings.

[0028] In the description of the present application: unless otherwise specified, the meaning of "a plurality of" is two or more. The terms "first", "second", "third", etc. in the present application are intended to distinguish the objects referred to, and do not have a special meaning in the technical connotation aspect (for example, it should not be understood as emphasizing importance or order, etc.). The expressions "include", "contain", "have" and the like also mean "not limited to" (certain units, components, materials, steps, etc.).

[0029] The terms such as "upper", "lower", "left", "right", "intermediate" and the like referred to in the present application are generally used for the purpose of facilitating intuitive understanding with reference to the drawings, and are not absolute limitations on the positional relationship in the actual product. Changes in these relative positional relationships, without departing from the technical concept disclosed in the present application, are also considered within the scope of the present application.

[0030] The embodiment of the present application provides an automatic lifting device for a resonant reactor, which mainly consists of three functional parts: a deceleration thrust mechanism, a resonant reactor lifting mechanism and a platform lifting mechanism. The specific structure and principle of the three functional parts will be described in detail below.

[0031] I. Deceleration thrust mechanism

[0032] In the embodiment, the deceleration thrust mechanism mainly includes a chassis 1, and horizontal slide bars 2 are arranged on opposite sides of the chassis 1. Referring to Figure 3 、 4 A sliding block 3 is arranged on each horizontal slide bar 2, and the two sliding blocks 3 are installed on a main shaft 4. A transmission nut 5 is arranged in the middle of the main shaft 4. The transmission nut 5 is connected to a transmission screw 18 in a matching manner. The transmission screw 18 is perpendicular to the main shaft 4. One end of the transmission screw 18 is connected to a driving assembly. The driving assembly is used to drive the transmission screw 18 to rotate, thereby driving the main shaft 4 and the sliding block 3 to translate along the horizontal slide bar 2 through the transmission nut 5.

[0033] Specifically, the above-mentioned chassis 1 is a square frame-shaped chassis 1, that is, the chassis 1 has a first side edge, a second side edge, a third side edge and a fourth side edge. The first side edge and the second side edge are arranged in opposite spaced relationship, and the third side edge and the fourth side edge are arranged in opposite spaced relationship. The inner side of the first side edge and the inner side of the second side edge are each provided with a horizontal slide bar 2 along the length direction. One sliding block 3 is arranged on each horizontal slide bar 2. The sliding block 3 can be driven to reciprocally slide left and right along the horizontal slide bar 2.

[0034] The two ends of the above-mentioned main shaft 4 are respectively connected to the sliding blocks 3, and the main shaft 4 passes through the first side, the second side and the two sliding blocks 3 axially; a transmission nut 5 is set in the middle of the main shaft 4, and the middle part of the transmission screw 18 passes through the main shaft 4 vertically axially and is connected to the main shaft 4 through the transmission nut 5, and the two ends of the transmission screw 18 extend out of the third side and the fourth side; the above-mentioned driving assembly includes a motor and a reducer, the reducer is connected to the rotating shaft of the motor, and the reducer is connected to one end of the transmission screw 18 to drive the transmission screw 18 to rotate and then drive the main shaft 4 and the sliding block 3 to translate along the horizontal slide bar 2.

[0035] The above-mentioned sliding block 3 can be cylindrical and can be connected to the horizontal slide bar 2 in a rolling manner. Of course, the sliding block 3 can also be a square block etc. that is arranged on the horizontal slide bar 2, as long as it can slide smoothly on the horizontal slide bar 2.

[0036] 2. Resonant Reactor Lifting Mechanism

[0037] In this embodiment, see Figure 1 、 2 The resonant reactor lifting mechanism includes a base plate 6 arranged above the chassis 1, two thrust arms 7, two support frames 8, and a resonant reactor assembly 9. The base plate 6 is fixed above the chassis 1, and the shape of the base plate 6 can be the same as that of the chassis 1. The two thrust arms 7 are arranged at intervals relative to each other, and the two support frames 8 are arranged at intervals relative to each other, and one thrust arm 7 and one support frame 8 are arranged adjacent to each other on the same side of the base plate 6. The resonant reactor assembly 9 of a columnar structure is hinged between the two thrust arms 7 and the two support frames 8 along one end of its axial direction. The lower ends of the two thrust arms 7 pass through the base plate 6 and are hinged to a sliding block 3. A long strip groove 10 is provided on the base plate 6 above the horizontal slide bar 2. When the two thrust arms 7 slide along the sliding block 3, the long strip groove 10 forms a moving track for the two thrust arms 7.

[0038] In this embodiment, the upper end of the thrust arm 7 is connected to the resonant inductor assembly 9, and the lower end of the thrust arm 7 passes through the base plate 6 and is hinged to a sliding block 3. The thrust arm 7 is tilted on the base plate 6, and the upper end of the thrust arm 7 is close to the support frame 8, that is, the thrust arm 7, the support frame 8 and the base plate 6 form a triangle. When the main shaft 4 and the sliding block 3 move horizontally along the horizontal slide bar 2, the thrust arm 7 can be pushed to rotate about the connection point with the resonant inductor assembly 9, thereby causing the resonant inductor assembly 9 to rotate and rise and fall around the support rod.

[0039] In the embodiment, the motor in the above-mentioned deceleration thrust mechanism protrudes from the bottom plate 6, thereby facilitating maintenance. The bottom plate 6 is further provided with a locating support 16 for supporting the other end of the columnar structure in the axial direction, and the locating support 16 is oppositely arranged with the support frame 8. The locating support 16 improves the stability of the placement of the resonant reactor assembly 9. A supporting member 17 can also be arranged on the bottom plate 6, and the supporting member 17 is located below the end of the resonant reactor assembly 9 close to the support frame 8. When the resonant reactor assembly 9 falls onto the locating support 16, the supporting member 17 can support the resonant reactor assembly 9, thereby ensuring the stability of the structure. In addition, a base can be arranged at the end of the resonant reactor assembly 9 close to the support frame 8, thereby improving the safety of the device and enabling the resonant reactor assembly 9 to stand up after falling by accident.

[0040] In the embodiment, an electrical control box can also be arranged on the bottom plate 6, and the electrical control box is signal-connected with the motor in the deceleration thrust mechanism, thereby enabling accurate control of the lifting height of the end of the resonant reactor assembly 9.

[0041] III. Platform lifting mechanism

[0042] In the embodiment, the platform lifting mechanism includes a plurality of screw lifting assemblies arranged at the edges of the bottom plate 6. Since the bottom plate 6 is a rectangular frame structure in the present application, one screw lifting assembly can be arranged at each corner of the bottom plate 6, for example. Figure 3 .

[0043] In the embodiment, referring to Figure 5 , the screw lifting assembly includes a mounting seat 11 arranged above the bottom plate 6, an adjusting nut 12 and a driving member arranged on the mounting seat 11, and a support transmission shaft 14 with external threads on the surface. Specifically, the inner wall of the adjusting nut 12 is provided with internal threads matched with the support transmission shaft 14. The driving member includes a horizontal stud 13 matched with external threads arranged on the outer wall of the adjusting nut 12. When the horizontal stud 13 is rotated, the horizontal stud 13 can drive the adjusting nut 12 to rotate. Since the adjusting nut 12 is also threadedly engaged with the support transmission shaft 14, the horizontal stud 13 can drive the adjusting nut 12 to ascend and descend along the support transmission shaft 14 after being rotated.

[0044] In the embodiment, a rotating operation disc can be arranged at one end of the horizontal stud 13, and a driving motor can be connected to the other end of the horizontal stud 13. Manual lifting can be realized by rotating the operation disc by multiple people at the same time. Automatic lifting can be realized by simultaneously controlling four driving motors to be started in the forward direction or in the reverse direction by the electrical control box, thereby saving time and effort and being fast and safe.

[0045] In the embodiment, the bottom of the vertically arranged support transmission shaft 14 is provided with a support base 15.

[0046] The overall action process of the automatic lifting device of the resonant reactor provided by the application can be briefly described as follows: the motor in the deceleration thrust mechanism is started to drive the deceleration machine to rotate and in turn drive the transmission lead screw 18 to rotate, while the transmission nut 5 moves along the transmission lead screw, and in turn drives the main shaft 4 and the sliding block 3 to translate along the horizontal sliding rod 2, the thrust arm 7 connected to the sliding block 3 can slide along the long strip-shaped channel 10 on the bottom plate 6, so as to rotate and lift or lower the resonant reactor assembly 9 around the support frame 8, so that the end of the resonant reactor assembly 9 away from the support frame 8 is lifted or lowered, and the lifting can facilitate the test; when the resonant reactor needs to be transported and unloaded, the resonant reactor assembly 9 can be lowered to the in-place support 16 through the deceleration thrust mechanism and the resonant reactor lifting mechanism, and then transported and unloaded, and the automatic lifting platform does not need to be separately provided during the process, the platform lifting mechanism of the device can lift and lower the deceleration thrust mechanism and the resonant reactor lifting mechanism as a whole, realize automatic leveling and loading and unloading of the vehicle, reduce the number of personnel for transportation and unloading, reduce transportation cost, improve transportation efficiency and improve the safety of transportation and unloading.

[0047] The technical features of the above embodiments can be combined in any manner (as long as the combination of the technical features does not contradict), and to make the description concise, not all possible combinations of the technical features in the above embodiments are described; the embodiments not explicitly described should also be considered as falling within the scope of the present application.

[0048] The application is described in detail above through general description and specific embodiments. It should be understood that, based on the technical concept of the application, some conventional adjustments or further innovations can be made to the specific embodiments; however, as long as the technical concept of the application is not deviated, the technical solutions obtained by the conventional adjustments or further innovations also fall within the protection scope of the claims of the present application.

Claims

1. A resonant reactor automatic lifting device, characterized in that, The application relates to a platform lifting device which comprises a deceleration thrust mechanism, a resonant reactor lifting mechanism and a platform lifting mechanism. The deceleration thrust mechanism comprises a chassis, horizontal slide rods arranged on opposite sides of the chassis, sliding blocks arranged on the horizontal slide rods, a main shaft on which the two sliding blocks are arranged, a transmission nut arranged at the middle part of the main shaft, a transmission screw rod which is connected with the transmission nut and is perpendicular to the main shaft, a driving assembly which is connected with one end of the transmission screw rod and is used to drive the transmission screw rod to rotate and then drive the main shaft and the sliding blocks to translate along the horizontal slide rods through the transmission nut. The resonant reactor lifting mechanism comprises a bottom plate arranged above the chassis, two thrust arms, two support frames and a resonant reactor assembly arranged above the bottom plate, the two thrust arms are arranged in opposite directions, the two support frames are arranged in opposite directions, the resonant reactor assembly is hinged between the two thrust arms and the two support frames along the axial direction of the cylindrical structure, the lower ends of the two thrust arms are hinged with the sliding blocks through the bottom plate, and a long slot is arranged on the bottom plate above the horizontal slide rods. The platform lifting mechanism comprises a plurality of screw rod lifting assemblies arranged at the edges of the bottom plate, the screw rod lifting assembly comprises a mounting seat arranged above the bottom plate, an adjusting nut and a driving member arranged on the mounting seat, and a support transmission shaft with external threads, the inner wall of the adjusting nut is provided with internal threads which are matched with the support transmission shaft, and the driving member comprises a horizontal stud which is matched with the external threads arranged on the outer wall of the adjusting nut, and the horizontal stud can drive the adjusting nut to lift along the support transmission shaft by rotating the horizontal stud.

2. The automatic resonant reactor lifting device according to claim 1, characterized in that, The chassis is a square frame, the sliding blocks are arranged on the horizontal slide rods and are slidably connected with the horizontal slide rods, the two sliding blocks are arranged in opposite directions along the length direction of the main shaft, a mounting hole is arranged at the middle part of the main shaft, the transmission nut is fixedly arranged in the mounting hole, the transmission nut is matched with the external threads of the outer wall of the transmission screw rod through the internal threads in the transmission nut, and the driving assembly of the transmission screw rod comprises a motor and a speed reducer.

3. The automatic lifting device for resonant reactors according to claim 1, characterized in that, The bottom plate is fixed above the chassis, one thrust arm and one support frame are arranged on the same side of the bottom plate, the upper end of the thrust arm is connected with the resonant reactor assembly, the lower end of the thrust arm is hinged with the sliding block through the bottom plate, the thrust arm is arranged in an inclined mode on the bottom plate, and the upper end of the thrust arm is close to the support frame; the main shaft and the sliding blocks can push the thrust arm to rotate at the connecting point of the thrust arm and the resonant reactor assembly by translating along the horizontal slide rods, so that the resonant reactor assembly rotates and lifts around the support rod.

4. The automatic resonant reactor lifting device according to claim 3, characterized in that, One end of the bottom plate is provided with an in-place support, the in-place support is arranged in opposite directions with the support rod, and the in-place support is used to support the other end of the resonant reactor assembly along the axial direction.

5. The automatic resonant reactor lifting device according to claim 1, characterized in that, The bottom plate is a rectangular frame structure, and one screw lifting assembly is arranged at the position close to each corner of the bottom plate; one end of the horizontal stud is provided with a rotating operation disc, and the other end of the horizontal stud is connected with a driving motor; the bottom of the supporting transmission shaft is provided with a supporting base.

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