Carrying device and assembling system for thyristor valve

Abstract

The invention provides a carrying device and an assembling system for a thyristor valve, the carrying device comprises a driving part and a clamping jaw assembly, the clamping jaw assembly comprises two pairs of clamping jaws arranged in a sliding mode, the clamping surfaces of the first pair of clamping jaws are cambered surfaces matched with a circular part in the thyristor valve, the clamping surfaces of the second pair of clamping jaws are planes, and the clamping surfaces of the first pair of clamping jaws are arc surfaces matched with the circular part in the thyristor valve. The first pair of clamping jaws and the second pair of clamping jaws are connected with the driving piece and are driven by the driving piece to achieve opening and clamping. According to the thyristor valve clamping and carrying device, clamping and carrying of all parts in a thyristor valve are achieved through the clamping jaw assemblies with different clamping faces, the first pair of clamping jaws with the arc faces are used for clamping and carrying a round thyristor, the second pair of clamping jaws with the plane faces are used for clamping and carrying a square radiator or an end plate, the adaptability is improved, and the clamping efficiency is improved. Stable stacking of all parts in the thyristor valve assembling process can be achieved, and the production efficiency and quality are improved.

Description

Technical Field

[0001] The invention relates to the field of industrial automation of thyristor valves, and in particular to a clamping mechanism and an assembly system for thyristor valves. Background Art

[0002] The core technology of DC transmission is concentrated in the converter station equipment. The converter station realizes the mutual energy conversion between DC and AC in the DC transmission project. In addition to the same equipment as the AC substation in the AC field, there are also the following unique equipment: converter valves, control and protection systems, converter transformers, AC filters and reactive power compensation equipment, DC filters, smoothing reactors and DC field equipment. The converter valve is the core equipment in the converter station. Its main function is to perform AC-DC conversion. From the initial mercury arc valve to the current electric control and light-controlled thyristor valve, the unit capacity of the converter valve is constantly increasing. The thyristor valve is a high-power power electronic rectifier or inverter device in the power system, and also a core component of the DC transmission project.

[0003] like Figure 1 As shown, the thyristor valve mainly comprises an upper end plate 101, a lower end plate 105 and an intermediate frame composed of a plurality of insulating rods 104 connected between the two end plates, which contains a heat sink 102, a thyristor 103, an IGBT and other power devices. At present, the production of thyristor valves mainly relies on manual transportation and placement of components, which is accompanied by heavy product components and difficult to carry; while carrying, some components need to be polished, cleaned, and oiled, which is inconvenient for manual operation and the quality of manual operation is unstable. Summary of the invention

[0004] In view of the above-mentioned shortcomings of the prior art, the technical problem to be solved by the present invention is to provide a handling device and assembly system for thyristor valves, so as to realize automated handling and assembly, improve assembly efficiency and assembly quality, and facilitate neatly stacking the heat sink, thyristor, and IGBT.

[0005] In order to solve the above technical problems, the present invention provides a handling device for a thyristor valve, the handling device includes a driving member and a clamping jaw assembly, the clamping jaw assembly includes two pairs of slidingly arranged clamping jaws, the clamping surface of the first pair of clamping jaws is an arc surface matching the circular member in the thyristor valve, and the clamping surface of the second pair of clamping jaws is a plane, the first pair of clamping jaws and the second pair of clamping jaws are both connected to the driving member and are opened and clamped under the drive of the driving member.

[0006] Preferably, the clamping jaw assembly further comprises a third pair of clamping jaws connected to the driving member, and the clamping surface of the third pair of clamping jaws is a plane.

[0007] Preferably, the first pair of jaws and the second pair of jaws are arranged back to back, and the third pair of jaws is arranged below the first pair of jaws and the second pair of jaws.

[0008] Preferably, the clamping jaw assembly comprises two guide rails arranged in parallel, and the first pair of clamping jaws and the second pair of clamping jaws are slidably connected to the two guide rails respectively.

[0009] Preferably, the driving member is a motor, the first pair of jaws and the second pair of jaws are respectively connected to the sliders on the guide rail, the motor is connected to the sliders through a transmission mechanism, and causes the sliders on the same guide rail to move in opposite directions.

[0010] Preferably, the driving member and the clamping jaw assembly are placed on a support frame, and the support frame has a connecting member connected to the driving device.

[0011] Preferably, the driving device is a manipulator or a robot, and the support frame is rotationally connected to the driving device and rotates or moves under the drive of the driving device.

[0012] Preferably, the clamping surface is provided with a wear-resistant part.

[0013] The present invention also provides an assembly system for a thyristor valve, which includes a storage area for storing components of the thyristor valve and an assembly area for assembling the thyristor valve, and a transport area located on one side of the storage area and the assembly area, wherein the transport area is provided with a transport device for the thyristor valve as described in any of the above items.

[0014] Preferably, both the storage area and the assembly area are provided with supporting tables.

[0015] As described above, the clamping mechanism and assembly system for the thyristor valve of the present invention have the following beneficial effects: two pairs of jaws with different clamping surfaces can be used to clamp and carry the various components of the thyristor valve, the arc surface can be used to clamp the circular thyristor, and the flat surface can be used to clamp the end plate or the radiator and other components, and the clamping is stable; different jaws can be driven to move by the driving member to clamp different components, saving the volume and structure of the clamping mechanism, and there is no need to set up multiple driving members; grinding, cleaning, oil dripping and other processes can be completed during the transportation process, and the stacking of the various components of the thyristor valve is stable and consistent, thereby improving the production quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Shown is a schematic diagram of a thyristor valve;

[0017] Figure 2 It is a diagram showing an embodiment of the clamping mechanism of the present invention;

[0018] Figure 3 Shown is a diagram of an embodiment of the clamping jaw assembly of the present invention;

[0019] Figure 4 It is a diagram showing an embodiment of the driving member in the present invention;

[0020] Figure 5 FIG. 1 is a diagram showing an embodiment of an assembly system for a thyristor valve according to the present invention.

[0021] Component number description

[0022] 100 thyristor valve

[0023] 200 clamping mechanism

[0024] 300 storage areas

[0025] 400 Assembly Area

[0026] 500 manipulators

[0027] 101 Upper end plate

[0028] 102 Radiator

[0029] 103 Thyristor

[0030] 104 Insulation Pull Rod

[0031] 105 lower end plate

[0032] 201 flange

[0033] 202 support frame

[0034] 203 drive parts

[0035] 204 second pair of jaws

[0036] 241 Plane

[0037] 205 Guide Rail

[0038] 206 The third pair of jaws

[0039] 207 The first pair of jaws

[0040] 208 support plate

[0041] 271 curved surface

[0042] 231 Control Unit

[0043] 232 Motor

[0044] 233 transmission mechanism DETAILED DESCRIPTION

[0045] The following is a description of the implementation of the present invention by means of specific embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0046] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention, so they have no substantial technical significance. Any modification of the structure, change of the proportion relationship or adjustment of the size, without affecting the effects and purposes that can be achieved by the present invention, should still fall within the scope of the technical content disclosed by the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the present invention. The change or adjustment of their relative relationship should also be regarded as the scope of the implementation of the present invention without substantially changing the technical content.

[0047] like Figures 2 to 5 As shown, the present invention provides a handling device for a thyristor valve, the handling device includes a clamping mechanism 200, the clamping mechanism 200 may specifically include a driving member 203 and a clamping jaw assembly, the clamping jaw assembly includes two pairs of slidingly arranged clamping jaws, the clamping surface of the first pair of clamping jaws 207 is a clamping surface that is aligned with the circular member ( Figure 1 The first pair of jaws 207 and the second pair of jaws 204 have a curved surface 271 that matches the thyristor 103 in the thyristor valve, and the clamping surface of the second pair of jaws 204 is a flat surface 241. The first pair of jaws 207 and the second pair of jaws 204 are both connected to the driving member 203 and are opened and clamped under the drive of the driving member 203. In this embodiment, the clamping and carrying of various components in the thyristor valve are realized by the jaw assembly with different clamping surfaces. The first pair of jaws 207 with curved surfaces are used for clamping and carrying circular thyristors, and the second pair of jaws 204 with flat surfaces are used for clamping and carrying square radiators or end plates, which improves adaptability, can realize stable stacking of various components during the assembly process of the thyristor valve, and improves production efficiency and quality.

[0048] As an embodiment, the above-mentioned clamping jaw assembly further includes a third pair of clamping jaws 206 connected to the driving member 203, and the clamping surface of the third pair of clamping jaws 206 is a plane. In this embodiment, three pairs of clamping jaws are used, and there are two pairs of clamping jaws with a plane clamping surface. Different clamping jaws can be used to clamp the radiator and the end plate, thereby expanding the adaptability of clamping. Furthermore, the first pair of clamping jaws 207 and the second pair of clamping jaws 204 are arranged in back-to-back orientation, and the third pair of clamping jaws 206 are arranged below the first pair of clamping jaws 207 and the second pair of clamping jaws 204. That is, the first pair of jaws 207 and the second pair of jaws 204 are located in the same clamping plane but are arranged in opposite directions, while the third pair of jaws 206 is located in a different clamping plane. The first pair of jaws 207 and the second pair of jaws 204 are installed above the support plate 208, and the third pair of jaws 206 are installed below the support plate 208. They are arranged in a manner that is more suitable for clamping the two end plates in the thyristor valve. In addition, before clamping one of the end plates, the pull rods can be fixed on the end plate, that is, interference needs to be avoided during the clamping and transportation process. Therefore, the third jaws 206 are independently arranged in this embodiment, which is easier to clamp and transport in a small space.

[0049] As an example, see Figure 3 As shown, the clamping jaw assembly comprises two parallel rails 205, and the first pair of clamping jaws 207 and the second pair of clamping jaws 204 are respectively slidably disposed on one of the rails 205. The driving member 203 is a motor 232 with a control unit 231. Figure 4 As shown, the first pair of clamping jaws 207 and the second pair of clamping jaws 204 are respectively connected to the sliders on the guide rail 205, and the motor 232 is connected to the sliders through the transmission mechanism 233, and the sliders on the same guide rail move in opposite directions. The motor 232 is used to drive the sliders to move linearly on the guide rail 205, so as to achieve stable opening and clamping of each pair of clamping jaws, thereby improving the safety and reliability of transportation.

[0050] The third pair of jaws 206 can be directly connected to the transmission mechanism 233. Each pair of jaws is connected to the motor 232 for control according to the process requirements. The clamping process can be: the motor 232 is first connected to the third pair of jaws 206 for transmission, and the end plate with a pull rod ( Figure 1 The lower end plate 105 is clamped and carried, and then the second pair of jaws 204 and the third pair of jaws 207 are connected by alternating transmission to realize the alternate clamping of square parts and round parts and stack them in the space surrounded by each pull rod, and finally the third pair of jaws 206 is connected by transmission to realize the clamping of the end plate on the other side and complete the assembly.

[0051] For easy installation, the driving member 203 and the clamping jaw assembly are placed on the support frame 202. The support frame 202 has a connecting member connected to the driving device. In this embodiment, the connecting member is preferably a flange 201, which can be directly connected to the manipulator or robot as the driving device. The flange is rotatably connected to the end of the manipulator or the robot, and is driven by the manipulator to rotate or move, thereby adapting to the use of each clamping jaw. For better clamping, wear-resistant parts are provided on each clamping surface.

[0052] As an embodiment, it also provides an assembly system for a thyristor valve, such as Figure 5 As shown, it includes a storage area 300 for storing various components of the thyristor valve and an assembly area 400 for assembling the thyristor valve, and a transport area placed on one side of the storage area and the assembly area, and the transport area is provided with a transport device used for the thyristor valve 100 as described in any of the above items. The storage area 300 and the assembly area 400 are both provided with a support table frame, and the support table frame is used to place various components of the thyristor valve, such as a material rack 1 for placing the radiator 102, and a material rack 2 for placing the thyristor 103 and the end plate. The above-mentioned driving device is a manipulator 500, and the clamping mechanism 200 including the clamping claw assembly and the driving member is placed at the end of the manipulator, and rotates or moves under the drive of the manipulator 500. A pressure test mechanism or other auxiliary assembly mechanism for assembling is also provided at the assembly area 400, which will not be described in detail here.

[0053] In this embodiment, the manipulator first rotates to align the third pair of jaws 206 with the material rack two, the motor 232 drives the third pair of jaws 206 to clamp the end plate, and the manipulator moves to transport it to the assembly area 400; the manipulator then rotates to align the second pair of jaws 204 with the material rack one to clamp square components such as the radiator 102, and moves and transports it to the assembly area 400, so that the third pair of jaws 207 aligns with the material rack two to clamp and move round components such as the thyristor 103, and when placing square components and round components, an alignment mechanism is used to achieve neat stacking, and finally the other end plate is clamped and transported to complete the assembly.

[0054] Therefore, the present invention effectively overcomes various shortcomings in the prior art and has high industrial utilization value.

[0055] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. A handling device for a thyristor valve, characterized in that: The handling device includes a driving member and a clamping jaw assembly, wherein the clamping jaw assembly includes two pairs of slidingly arranged clamping jaws, the clamping surface of the first pair of clamping jaws is an arc surface matching the circular member in the thyristor valve, and the clamping surface of the second pair of clamping jaws is a plane, and the first pair of clamping jaws and the second pair of clamping jaws are both connected to the driving member and are opened and clamped under the drive of the driving member.

2. The handling device for thyristor valve according to claim 1, characterized in that: The clamping jaw assembly further comprises a third pair of clamping jaws connected to the driving member, and the clamping surface of the third pair of clamping jaws is a plane.

3. The handling device for thyristor valve according to claim 2, characterized in that: The first pair of clamping jaws and the second pair of clamping jaws are arranged in back-to-back relation, and the third pair of clamping jaws are arranged below the first pair of clamping jaws and the second pair of clamping jaws.

4. The handling device for thyristor valves according to any one of claims 1 to 3, characterized in that: The clamping jaw assembly comprises two guide rails arranged in parallel, and the first pair of clamping jaws and the second pair of clamping jaws are respectively slidably connected to the two guide rails.

5. The handling device for thyristor valve according to claim 4, characterized in that: The driving member is a motor. The first pair of clamping jaws and the second pair of clamping jaws are respectively connected to the sliders on the guide rail. The motor is connected to the sliders through a transmission mechanism and causes the sliders on the same guide rail to move in opposite directions.

6. The handling device for thyristor valve according to claim 1, characterized in that: The driving member and the clamping jaw assembly are placed on a supporting frame, and the supporting frame has a connecting member connected to the driving device.

7. The handling device for thyristor valves according to claim 6, characterized in that: The driving device is a manipulator or a robot, and the support frame is rotationally connected to the driving device and rotates or moves under the drive of the driving device.

8. The handling device for thyristor valves according to claim 1, characterized in that: The clamping surface is provided with a wear-resistant part.

9. An assembly system for a thyristor valve, characterized in that: It comprises a storage area for storing the components of the thyristor valve and an assembly area for assembling the thyristor valve, and a transport area located on one side of the storage area and the assembly area, wherein the transport area is provided with a transport device for the thyristor valve as described in any one of claims 1 to 8.

10. An assembly system for a thyristor valve according to claim 9, characterized in that: The storage area and the assembly area are both provided with supporting tables.

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