Cutting device and cutting system for electric heater sleeve of voltage stabilizer

Abstract

The invention provides a cutting device and a cutting system for an electric heater sleeve of a voltage stabilizer, and relates to the technical field of nuclear power. The cutting device for the electric heater sleeve of the voltage stabilizer comprises a clamping module and a cutting module, wherein the clamping module is suitable for surrounding and clamping the electric heater sleeve of the voltage stabilizer; the rotating module is rotationally connected with the clamping module, and the rotating module is suitable for being arranged on the electric heater sleeve of the voltage stabilizer in a sleeving mode and rotates with the sleeve axis of the electric heater sleeve of the voltage stabilizer as a rotating shaft; the at least one cutting module is fixedly connected with the rotating module, the cutting module comprises a cutter, and the cutter is suitable for cutting the casing pipe of the electric heater of the voltage stabilizer; and the stirring module is fixedly connected with the clamping module, and the stirring module is suitable for driving the cutter, located at the preset position, of the cutting module to move in the direction close to the axis of the sleeve when the rotating module rotates.

Description

Technical Field

[0001] This application mainly relates to the field of nuclear power technology, and in particular to a cutting device and cutting system for a voltage regulator electric heater bushing. Background Technology

[0002] During the operation of a nuclear power plant, a pressurizer is used to maintain a stable pressure in the primary circuit. The pressurizer consists of multiple pressurizer heater bushings and electric heating elements located within the pressurizer heater bushings.

[0003] When the electric heating element loses its heating function, personnel need to go to the site to replace it to ensure the normal operation of the voltage regulator. During the on-site replacement, the voltage regulator's electric heater sleeve, which is fitted over the electric heating element, must first be cut before the damaged electric heating element can be pulled out from the cut opening in the sleeve.

[0004] Because the site is a radiation environment, it takes a long time for workers to manually cut the bushing of the voltage regulator electric heater, which leads to prolonged exposure of workers to radiation and an increase in their radiation dose.

[0005] Therefore, there is an urgent need for a cutting device for the bushing of a voltage regulator electric heater that can achieve automatic cutting. Summary of the Invention

[0006] The technical problem to be solved by this application is to provide a cutting device and cutting system for the bushing of a voltage regulator electric heater, which can realize automatic cutting to reduce the time that workers spend on site.

[0007] To address the aforementioned technical problems, this application provides a cutting device for a voltage regulator electric heater bushing, comprising: a clamping module adapted to surround and clamp the voltage regulator electric heater bushing; a rotating module rotatably connected to the clamping module, adapted to be sleeved on the voltage regulator electric heater bushing and rotate about the bushing axis of the voltage regulator electric heater bushing; at least one cutting module fixedly connected to the rotating module, wherein the cutting module includes a cutting tool adapted to cut the voltage regulator electric heater bushing; and a toggle module fixedly connected to the clamping module, adapted to drive the cutting tool of the cutting module located at a preset position to move closer to the bushing axis when the rotating module rotates.

[0008] Optionally, the clamping module includes two clamping bodies, each having a clamping groove adapted to abut against the voltage regulator electric heater sleeve. The two clamping grooves are adapted to form a first receiving channel for accommodating the voltage regulator electric heater sleeve after the two clamping bodies are docked and fixed.

[0009] Optionally, the rotating module includes two rotating bodies and an annular rotating assembly. The annular rotating assembly is fixedly connected to the clamping module. The rotating body includes a semi-annular rotating part. The two rotating bodies are adapted to be mated and fixed and then sleeved on the bushing of the voltage regulator electric heater, so that the two semi-annular rotating parts form an annular rotating part. The annular rotating part is adapted to be sleeved on the annular rotating assembly and rotates about the bushing axis as the rotation axis.

[0010] Optionally, the semi-annular rotating part includes a semi-annular protrusion facing the annular rotating assembly, and two semi-annular concave strips are adapted to form an annular protrusion after the two rotating bodies are docked and fixed. The annular rotating assembly includes an annular rotating recess, which is adapted to accommodate the annular protrusion and abut against the annular protrusion.

[0011] Optionally, the semi-ring rotating part further includes a semi-ring rack disposed opposite to the semi-ring protrusion. The two semi-ring racks are adapted to form an annular rack after the two rotating bodies are docked and fixed. The cutting device further includes a drive module, which is meshed with the annular rack and is adapted to drive the annular rack to rotate about the sleeve axis.

[0012] Optionally, the cutting module further includes: a tool holder fixing housing, including a tool holder cavity, the tool holder fixing housing being fixedly connected to the rotating module; a tool holder slider, including a tool holder through hole, the tool holder slider being at least partially located in the tool holder cavity, the tool holder slider being fixedly connected to the tool, wherein the tip portion of the tool extends outside the tool holder cavity; and a propulsion unit, including a first propulsion end, the first propulsion end being located in the tool holder through hole and threadedly connected to the tool holder slider, the propulsion unit being adapted to rotate the first propulsion end in the tool holder through hole after it abuts against the actuation module at a preset position.

[0013] Optionally, the propulsion unit includes: an external gear adapted to rotate after contacting the actuation module; and a feed screw including a screw body, the screw body including a first propulsion end and a second propulsion end opposite to each other, the second propulsion end being connected to the external gear, wherein the screw body is adapted to rotate about its own axis as the external gear rotates.

[0014] Optionally, the propulsion unit further includes: a clutch disc, including a clutch surface facing the external gear and a clutch hole penetrating the clutch disc; a plurality of ball-operated set screws, including set screws and balls, the plurality of set screws being fixedly connected to the clutch surface around the clutch hole, and each ball being connected to the end of the corresponding set screw away from the clutch surface, wherein the external gear includes a gear surface facing the clutch disc, the gear surface having a plurality of ball-operated grooves, the ball-operated grooves being adapted to accommodate the corresponding ball and abut against the ball.

[0015] Optionally, one side of the tool holder fixing housing has a through-hole limiting waist hole, and the cutting module further includes: a push-in limiting member that passes through the limiting waist hole and is fixedly connected to the tool holder slider, wherein the push-in limiting member is adapted to abut against the inner wall of the limiting waist hole so that the tool no longer approaches the sleeve axis.

[0016] Optionally, at least one cutting module includes a first cutting module and a second cutting module. The cutting tool of the first cutting module includes a pointed blade, and the cutting tool of the second cutting module includes a flat blade. When the first cutting module and the second cutting module are configured to cut the bushing of the voltage regulator electric heater, the pointed blade is closer to the bushing axis than the flat blade.

[0017] Optionally, it further includes: a collection module adapted to be sleeved on the voltage regulator electric heater bushing and located on the side of at least one cutting module away from the rotating module, the collection module being adapted to receive waste generated by at least one cutting module cutting the voltage regulator electric heater bushing.

[0018] To solve the above-mentioned technical problems, this application provides a cutting system for a voltage regulator electric heater bushing, including: the above-mentioned cutting device; and a fixing device, including a pre-fixing module, which is connected to the clamping module of the cutting device and is adapted to be fixedly connected to the voltage regulator electric heater bushing.

[0019] Optionally, the fixing device further includes an adjustment module, which is connected to the pre-fixing module and the clamping module respectively, and the adjustment module is adapted to adjust the distance between the pre-fixing module and the clamping module.

[0020] Compared with existing technologies, this application has the following advantages: The cutting device is fixedly connected to the voltage regulator heater bushing via a clamping module. Furthermore, a rotating module rotatably connected to the clamping module allows the cutting module, which is fixedly connected to the rotating module, to rotate around the bushing axis of the voltage regulator heater bushing. A undulating module drives the cutting tool of the cutting module to move closer to the bushing axis, causing the cutting tool to abut against and gradually penetrate the voltage regulator heater bushing during rotation until the bushing is completely cut off. Through this configuration, the cutting device can achieve automatic cutting, eliminating the need for on-site operation and fine-tuning by personnel, thereby reducing the total on-site operation time and lowering the radiation dose to personnel. Attached Figure Description

[0021] The accompanying drawings are included to provide a further understanding of this application; they are incorporated into and constitute a part of this application. The drawings illustrate embodiments of this application and, together with this specification, serve to explain the principles of this application. In the drawings: Figure 1 This is a schematic diagram of the structure of a cutting system for a voltage regulator electric heater bushing according to an embodiment of this application; Figure 2 yes Figure 1 Exploded view of the clamping module and the rotating module; Figure 3 yes Figure 1 A side sectional view of the first cutting module 30; Figure 4 yes Figure 1 Exploded view of the first cutting module 30 in the middle; Figure 5 yes Figure 1 A three-dimensional schematic diagram of the collection module of the cutting device; and Figure 6 yes Figure 5 A side view of the collection module.

[0022] Figure label: Cutting device 100, clamping module 10, first clamping body 11, first semi-annular baffle 12, first clamping baffle 13, driving opening 131, second clamping body 14, second clamping groove 141, second semi-annular baffle 15, second clamping baffle 16, clamping fixing member 17, rotating module 20, rotating body 21, semi-annular rotating part 211, semi-annular protrusion 2111, semi-annular rack 2112, semi-annular base plate 212, rotating recess 2121, annular Rotating assembly 22, rotating component 221, fixed shaft 2211, roller 2212, rotating fixing bolt 222, rotating fixing component 23, first cutting module 30, pointed blade 31, pointed tip portion 311, blade holder fixing housing 32, blade holder cavity 321, limiting waist hole 322, blade holder slider 33, blade holder through hole 331, propulsion unit 34, feed screw 341, screw body 3411, positioning ring 3412, first propulsion end 3413, second 3414, thrust end cap, 342, thrust needle roller bearing, 3421, thrust washer, 343, end cap, 344, clutch disc, 345, clutch hole, 3451, clutch surface, 3452, ball bearing setter, 346, setter, 3461, ball bearing, 3462, external gear, 347, gear surface, 3471, ball bearing groove, 3472, gear through hole, 3473, tooth, 3474, fixing tube, 348, adjusting bolt, 349, thrust limiting component, 35, limiting component oblong hole. 51. Limiting and fixing component 36, first limiting and fixing end 361, second limiting and fixing end 362, second cutting module 40, flat-head blade 41, actuating module 50, first actuating end 51, driving module 60, collecting module 70, collecting part 711, fixing part 712, second receiving channel 713, cutting system 300, fixing device 200, pre-fixing module 201, adjusting module 202, voltage regulator electric heater sleeve 400 and sleeve axis 401. Detailed Implementation

[0023] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are merely some examples or embodiments of this application. For those skilled in the art, these drawings can be applied to other similar scenarios without creative effort. Unless obvious from the context or otherwise specified, the same reference numerals in the drawings represent the same structures or operations.

[0024] As indicated in this application and claims, unless the context clearly indicates otherwise, the words "a," "an," "an," and / or "the" are not specifically singular and may include plural forms. Generally speaking, the terms "comprising" and "including" only indicate the inclusion of explicitly identified steps and elements, which do not constitute an exclusive list, and the method or apparatus may also include other steps or elements.

[0025] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this application. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0026] In the description of this application, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0027] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0028] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, these terms have no special meaning and therefore should not be construed as limiting the scope of protection of this application. In addition, although the terminology used in this application is selected from commonly known and used terms, some terms mentioned in this application's specification may have been chosen by the applicant according to his or her judgment, and their detailed meanings are explained in the relevant sections of this description. Moreover, this application should be understood not only through the actual terms used, but also through the meaning implied by each term.

[0029] It should be understood that when a component is referred to as "on another component," "connected to another component," "coupled to another component," or "in contact with another component," it can be directly on, connected to, coupled to, or in contact with that other component, or there may be an intervening component. In contrast, when a component is referred to as "directly on another component," "directly connected to," "directly coupled to," or "directly in contact with" another component, there is no intervening component. Similarly, when a first component is referred to as "electrically contacting" or "electrically coupled to" a second component, there is an electrical path between the first and second components that allows current to flow. This electrical path may include capacitors, coupled inductors, and / or other components that allow current to flow, even if there is no direct contact between the conductive components.

[0030] Reference Figure 1 One embodiment of this application provides a cutting device 100 for a voltage regulator electric heater bushing. For example... Figure 1As shown, the cutting device 100 of this embodiment includes a clamping module 10, a rotating module 20, a first cutting module 30, a second cutting module 40, a tossing module 50, a driving module 60, and a collecting module 70. The first cutting module 30 includes a pointed blade 31, and the second cutting module 40 includes a flat-headed blade 41. In this embodiment, the clamping module 10 is adapted to surround and clamp the voltage regulator electric heater sleeve 400. The rotating module 20 is rotatably connected to the clamping module 10, and the rotating module 20 is adapted to be sleeved on the voltage regulator electric heater sleeve 400 and rotate about the sleeve axis 401 of the voltage regulator electric heater sleeve 400 as the rotation axis. The first cutting module 30 is fixedly connected to the rotating module 20, and the first cutting module 30 is adapted to cut the voltage regulator electric heater sleeve 400 using the pointed blade 31. The second cutting module 40 is fixedly connected to the rotating module 20, and the second cutting module 40 is adapted to cut the voltage regulator electric heater sleeve 400 using the flat-headed blade 41. The actuating module 50 is fixedly connected to the clamping module 10, and the actuating module 50 is adapted to drive the pointed blade 31 of the first cutting module 30, located at a preset position, to move towards the sleeve axis 401 when the rotating module 20 rotates, or to drive the flat blade 41 of the second cutting module 40, located at a preset position, to move towards the sleeve axis 401. The collecting module 70 is adapted to be sleeved on the voltage regulator electric heater sleeve 400 and located on the side of the first cutting module 30 and the second cutting module 40 away from the rotating module 20, and the collecting module 70 is also adapted to receive the waste generated by the first cutting module 30 and the second cutting module 40 cutting the voltage regulator electric heater sleeve 400. It should be noted that... Figure 1 The image shows the voltage regulator electric heater sleeve 400, which is fixedly connected to the cutting device 100, indicated by two parallel solid line segments. A dashed line segment is placed between the two solid line segments to indicate the sleeve axis 401. It can be understood that the sleeve axis 401 is the center line of the voltage regulator electric heater sleeve 400.

[0031] Continue to refer to Figure 2In this embodiment, the clamping module 10 includes a first clamping body 11, a first semi-annular baffle 12, a first clamping baffle 13, a second clamping body 14, a second semi-annular baffle 15, a second clamping baffle 16, and a plurality of clamping fasteners 17. The first clamping body 11 includes a first clamping groove (not shown in the figure), and the second clamping body 14 includes a second clamping groove 141. Specifically, the first semi-annular baffle 12 is fixedly connected to one end of the first clamping groove. The first clamping baffle 13 is fixedly connected to the edge of the first clamping body 11 away from the first clamping groove, and the first clamping baffle 13 has a driving opening 131. The second semi-annular baffle 15 is fixedly connected to one end of the second clamping groove 141. The second clamping baffle 16 is fixedly connected to the edge of the second clamping body 14 away from the second clamping groove 141. The first clamping body 11 and the second clamping body 14 are adapted to be fixed together by the plurality of clamping fasteners 17. In this embodiment, the clamping and fixing member 17 is a clamping and fixing bolt. Correspondingly, the first clamping body 11 and the second clamping body 14 have through holes corresponding to the clamping and fixing bolt, so that the clamping and fixing bolt can pass through the corresponding through holes and the first clamping body 11 and the second clamping body 14 can be docked and fixed. After the first clamping body 11 and the second clamping body 14 are docked and fixed, the first clamping groove and the second clamping groove 141 form a first receiving channel for accommodating the voltage regulator electric heater sleeve 400, and the first clamping groove and the second clamping groove 141 abut against the voltage regulator electric heater sleeve 400, thereby enabling the clamping module 10 to surround and clamp the voltage regulator electric heater sleeve 400. In addition, after the first clamping body 11 and the second clamping body 14 are docked and fixed, the first semi-annular baffle 12 and the second semi-annular baffle 15 form a first annular baffle, and the first clamping baffle 13 and the second clamping baffle 16 form a second annular baffle. The corresponding functions of the first annular baffle and the second annular baffle will be explained next in conjunction with the rotating module 20.

[0032] Continue to refer to Figure 2 In this embodiment, the rotating module 20 includes two rotating bodies 21, an annular rotating assembly 22, and multiple rotating fixing members 23. The annular rotating assembly 22 is fixedly connected to the clamping module 10, and the two rotating bodies 21, after being fixed together by the multiple rotating fixing members 23, can be rotatably connected to the annular rotating assembly 22, thereby allowing the two rotating bodies 21 to rotate relative to the clamping module 10. In this embodiment, the rotating fixing member 23 is a rotating fixing bolt, and the rotating body 21 has a through hole corresponding to the rotating fixing bolt, so that the rotating fixing bolt passes through the corresponding through hole and can fix the two rotating bodies 21 together. (Continuing to refer to...) Figure 2In this embodiment, the annular rotating assembly 22 includes multiple rotating components 221, and each rotating component 221 includes a fixed shaft 2211 and two adjacent rollers 2212 rotatably connected to the fixed shaft 2211. In this embodiment, the end of each fixed shaft 2211 away from the rollers 2212 is fixedly connected to the first clamping body 11 or the second clamping body 14, and all rotating components 221 are distributed in annular intervals around the outer surface of the first annular baffle. That is, some rotating components 221 are fixedly connected to the first clamping body 11 and are distributed sequentially at intervals along the outer surface of the first semi-annular baffle 12, and the remaining rotating components 221 are fixedly connected to the second clamping body 14 and are distributed sequentially at intervals along the outer surface of the second semi-annular baffle 15. In this embodiment, the annular rotating assembly 22 also includes multiple rotating fixing bolts 222 corresponding to the rotating components 221, and the first clamping body 11 and the second clamping body 14 have through holes corresponding to the rotating fixing bolts 222. Specifically, in this embodiment, the fixed shaft 2211 extends into the corresponding through hole from one end and is threadedly connected to the rotating fixing bolt 222 extending into the through hole from the other end, thereby realizing the fixed connection between the fixed shaft 2211 and the first clamping body 11 or the second clamping body 14.

[0033] Continue to refer to Figure 2 In this embodiment, the rotating body 21 includes a semi-annular rotating portion 211 and a semi-annular base plate 212. The semi-annular base plate 212 includes a rotating recess 2121, and the semi-annular rotating portion 211 extends along the edge of the semi-annular base plate 212. Furthermore, the semi-annular rotating portion 211 includes a semi-annular protrusion 2111 facing the annular rotating assembly 22 and a semi-annular rack 2112 opposite to the semi-annular protrusion 2111. In this embodiment, after the two rotating bodies 21 are docked and fixed, the two rotating recesses 2121 form a rotating through hole, and this rotating through hole corresponds to the first receiving channel, i.e., the voltage regulator electric heater sleeve 400 is suitable to pass through the rotating through hole, thereby allowing the two rotating bodies 21, after docking and fixing, to be fitted onto the voltage regulator electric heater sleeve 400. Furthermore, after the two rotating bodies 21 are docked and fixed, the two semi-annular rotating portions form an annular rotating portion, the two semi-annular protrusions 2111 form an annular protrusion, and the two semi-annular racks 2112 form an annular rack. Correspondingly, in this embodiment, the adjacent surfaces of the two rollers 2212 of the rotating member 221 form V-shaped recesses, and the V-shaped recesses of all rotating members 221 form annular rotating recesses corresponding to the annular rotating assembly 22. The annular rotating recess is adapted to accommodate and abut against the annular protrusion. It can be understood that when the first clamping body 11 and the second clamping body 14 are docked and fixed, and the two rotating bodies 21 are docked and fixed, the annular protrusion extends into the annular rotating recess, thereby making the annular rotating part suitable for fitting onto the annular rotating assembly 22. This prevents the two rotating bodies 21 after docking and fixing from detaching from the annular rotating assembly 22, thus allowing the two rotating bodies 21 after docking and fixing to be rotatably connected to the clamping module 10.

[0034] It should be noted that when the clamping module 10 and the rotating module 20 are rotatably connected, the ends of the first and second annular baffles away from the clamping module 10 respectively abut against the two semi-annular base plates 212, so that the two semi-annular rotating parts 211 are all located in the space formed by the two semi-annular base plates 212, the first clamping body 11, the second clamping body 14, the first annular baffle, and the second annular baffle. Based on this, after the driving module 60 of this embodiment is fixedly connected to the first clamping body 11, it engages with the annular rack through the driving opening 131, thereby causing the driving module 60 to drive the annular rack to rotate around the sleeve axis 401, and thus causing the entire rotating module to rotate around the sleeve axis 401. Specifically, in this embodiment, the driving module 60 includes a driving gear and a driver, wherein the driving gear is adapted to engage with the annular rack, and the driver is adapted to drive the driving gear to rotate, thereby driving the annular rack to rotate. Understandably, when the clamping module 10 and the rotating module 20 are fitted onto the voltage regulator electric heater sleeve 400, and the driving module 60 drives the rotating module 20 to rotate, the annular rack is located in a relatively sealed space. This reduces the risk of cutting impurities coming into contact with the annular rack during the cutting process, which could lead to damage or jamming of the annular rack. This, in turn, improves the operational stability and service life of the cutting device 100.

[0035] Continue to refer to Figure 3 and Figure 4 In this embodiment, the first cutting module 30 includes not only the cutting tool 31 (with a pointed blade 31), but also a tool holder fixing housing 32, a tool holder slider 33, a propulsion unit 34, a propulsion limiting member 35, and a limiting fixing member 36. In this embodiment, the tool holder fixing housing 32 is fixedly connected to the rotation module 20, and the tool holder slider 33 is slidably connected to the tool holder fixing housing 32 via the propulsion unit 34. The tool holder slider 33 is also fixedly connected to the cutting tool, i.e., the tool holder slider 33 is fixedly connected to the pointed blade 31, thereby allowing the cutting tool to approach the voltage regulator electric heater sleeve 400. Furthermore, the propulsion limiting member 35 is fixedly connected to the tool holder slider 33 via the limiting fixing member 36 and is used to limit the displacement distance of the tool holder slider 33 relative to the tool holder fixing housing 32. Specifically, in this embodiment, the tool holder fixing housing 32 includes a tool holder cavity 321, the tool holder slider 33 is at least partially located in the tool holder cavity 321, and the tip portion 311 of the pointed blade 31 extends outside the tool holder cavity 321.

[0036] Referring again to Figure 4, in this embodiment, one side of the tool holder fixing housing 32 has a through-hole 322. Correspondingly, the push-in limiting member 35 passes through the limiting hole 322 and abuts against the tool holder slider 33 inside the tool holder fixing housing 32. Based on this, the first limiting fixing end 361 of the limiting fixing member 36 passes through the limiting member elongated hole 351 of the push-in limiting member 35 and is fixedly connected to the tool holder slider 33, and the second limiting fixing end 362 of the limiting fixing member 36 abuts against the end of the push-in limiting member 35 away from the tool holder slider 33, thereby fixing the push-in limiting member 35 to the tool holder slider 33. Specifically, in this embodiment, the limiting fixing member 36 is a screw, and the screw is threadedly connected to the tool holder slider 33. It can be understood that in this embodiment, when... Figure 4 The tool holder slider 33 moves closer to Figure 1 When the sleeve axis 401 moves in the x-direction, the advancing limit member 35 gradually approaches the limiting waist hole 322 until the advancing limit member 35 abuts against the inner wall of the limiting waist hole 322. At this point, the tool holder slider 33 and the pointed blade 31 fixed thereto no longer approach the sleeve axis 401. This design prevents the pointed blade 31 from extending too far into the interior of the voltage regulator electric heater sleeve 400, and avoids contact between the pointed blade 31 and the electric heating element inside the voltage regulator electric heater sleeve 400, which could damage the pointed blade 31 or cause unnecessary cutting to the electric heating element. (Continue referring to...) Figure 4 In this embodiment, the outer diameter of the first limiting and fixing end 361 of the limiting and fixing member 36 is smaller than the length of the oblong hole 351 of the limiting member, so that the position of the pushing limiting member 35 and the tool holder slider 33 can be adjusted in the x direction, thereby adjusting the degree to which the final tip knife 31 extends into the inside of the voltage regulator electric heater sleeve 400, and achieving precise control of the cutting depth.

[0037] Continue to refer to Figure 3 and Figure 4In this embodiment, the propulsion unit 34 includes a feed screw 341, a thrust needle roller bearing 342, a thrust washer 343, an end cap 344, a clutch disc 345, multiple ball bearing set screws 346, an external gear 347, a fixing tube 348, and an adjusting bolt 349. The feed screw 341 includes a screw body 3411 and a positioning ring 3412, with the positioning ring 3412 sleeved on the screw body 3411 and integrally formed with it. In this embodiment, the screw body 3411 includes a first propulsion end 3413 and a second propulsion end 3414. Correspondingly, in this embodiment, the tool holder slider 33 includes a tool holder through hole 331, with the first propulsion end 3413 located in the tool holder through hole 331 and threadedly connected to the tool holder slider 33. In this embodiment, the thrust needle roller bearing 342, the thrust washer 343, and the end cap 344 are sequentially sleeved on the screw body 3411 from the second propulsion end 3414. In this embodiment, the end cap 344 is fixedly connected to the tool holder fixing housing 32, thereby causing the ends of the end cap 344, thrust pad 343, thrust needle roller bearing 342, positioning ring 3412, and tool holder fixing housing 32 to abut against each other in sequence. In this embodiment, the clutch disc 345 includes a clutch hole 3451 penetrating the clutch disc 345 and a clutch surface 3452 facing the external gear 347. In this embodiment, the second propulsion end 3414 partially extends into the clutch hole 3451. In this embodiment, the ball bearing set screw 346 includes a set screw 3461 and a ball bearing 3462. One end of the set screw 3461 is fixedly connected to the clutch surface 3452, and the other end of the set screw 3461 away from the clutch surface 3452 is connected to the ball bearing 3462. Furthermore, all the set screws 3461 are arranged sequentially at intervals around the clutch hole 3451. In this embodiment, the external gear 347 includes a gear surface 3471, a plurality of ball grooves 3472 located on the gear surface 3471, a gear through hole 3473, and a plurality of protruding teeth 3474. The gear surface 3471 faces the clutch disc 345, and the ball grooves 3472 are adapted to accommodate corresponding balls 3462 and abut against the balls 3462. In this embodiment, one end of the fixing tube 348 passes through the gear through hole 3473 and partially extends into the clutch hole 3451. Furthermore, in this embodiment, the adjusting bolt 349 passes through the fixing tube 348 and extends into the through hole located at the second propulsion end 3414, and the adjusting bolt 349 is threadedly connected to the second propulsion end 3414.

[0038] In this embodiment, the pushing unit 34 of the first cutting module 30 is adapted to rotate the first pushing end 3413 in the through hole of the tool holder after it abuts against the actuating module 50 at a preset position, so that the pointed blade 31 moves closer to the sleeve axis 401. Specifically, further refer to Figure 1 In this embodiment, when the first cutting module 30 rotates with the rotating module 20 to... Figure 1When the preset position is reached, the teeth of the external gear 347 of the first cutting module 30 abut against the first actuating end 51 of the actuating module 50 away from the clamping module 10. As the first cutting module 30 continues to rotate with the rotating module 20 and gradually moves away, the external gear 347 is abutted by the first actuating end 51 and rotates, thereby driving the clutch disc 345, which abuts against the external gear 347 through the ball set screw 346, to rotate synchronously. This, in turn, drives the feed screw 341, which is engaged with the clutch disc 345, to rotate around its own axis, so that the tool holder slider 33, which is threadedly connected to the feed screw 341, slides in the tool holder cavity 321, so that the pointed blade 31 moves closer to the sleeve axis 401.

[0039] Continue to refer to Figure 3 and Figure 4 In this embodiment, when the feed screw 341 drives the tool holder slider 33 to slide in the tool holder cavity 321 via the thread, the feed screw 341 will be subjected to the opposite force, causing the positioning ring 3412 to abut against the thrust needle bearing 342 and rotate about the axis of the screw body 3411. Since the thrust needle bearing 342 has multiple rolling needles 3421, it can convert the sliding friction of the positioning ring 3412 into rolling friction and further transmit it to the thrust pad 343. This avoids the positioning ring 3412 and the end cover 344 from sliding friction when the feed screw 341 rotates, thus preventing excessive wear of the positioning ring 3412 and the end cover 344, thereby ensuring the service life and propulsion accuracy of the propulsion unit 34.

[0040] Continue to refer to Figure 3 and Figure 4 In this embodiment, when the push-limiting member 35 abuts against the inner wall of the limiting waist hole 322, the feed screw 341, which is threadedly connected to the tool holder slider 33, is jammed, causing the clutch disc 345 to stop rotating with the rotation of the external gear 347. That is, when the external gear 347 continues to rotate, the spring force applied by the ball set screw 346 to the ball 3462, which positions the ball 3462 in the corresponding ball groove 3472, is less than the rotational force of the external gear 347, thus causing the external gear 347 to stop driving the clutch disc 345 to rotate. Through the above setting, a soft connection between the external gear 347 and the clutch disc 345 can be achieved, preventing the external gear 347 from continuing to act on the clutch disc 345 and causing damage to the clutch disc 345 when the tool holder slider 33 is unable to continue to approach the sleeve axis 401 due to the influence of the push-limiting member 35. Furthermore, in this embodiment, by adjusting the extent to which the adjusting bolt 349 extends into the second propulsion end 3414, the magnitude of the spring force applied by the ball bearing set screw 346 to the ball bearing 3462 can be adjusted, thereby adjusting the connection strength between the external gear 347 and the clutch disc 345 so that the propulsion effect of the external gear 347 on the tip knife 31 can be better controlled.

[0041] Continue to refer to Figure 1 In this embodiment, the second cutting module 40 has the same tool holder fixing housing, tool holder slider, propulsion unit, propulsion limiter, and limit fixing member as the first cutting module 30. Therefore, the corresponding structure of the second cutting module 40 will not be described again. In this embodiment, the pointed blade 31 and the flat blade 41 are arranged opposite to each other, and the pointed blade 31 is closer to the sleeve axis 401 than the flat blade 41. This allows the cutting device 100 to first break the surface of the voltage regulator electric heater sleeve 400 with the pointed blade 31 when cutting the voltage regulator electric heater sleeve 400, and then further enlarge the opening with the flat blade 41 to form a flatter cutting surface, thereby achieving fine cutting of the voltage regulator electric heater sleeve 400.

[0042] Continue to refer to Figure 5 and Figure 6 In this embodiment, the collection module 70 includes two collection bodies 71, and each collection body 71 includes a collection portion 711 and a fixing portion 712. The two fixing portions 712 have corresponding through holes, and the fixing members are adapted to extend into the corresponding through holes to fix the two fixing portions 712 together. In this embodiment, after the two fixing portions 712 are fixedly connected, the two collection bodies 71 are mutually fixedly connected, forming a second receiving channel 713 for accommodating the voltage regulator electric heater sleeve 400. It can be understood that the collection module 70 is sleeved on the voltage regulator electric heater sleeve 400 through the second receiving channel 713, and abuts against the voltage regulator electric heater sleeve 400 through the two collection bodies 71, thereby securing the collection module 70 firmly to the voltage regulator electric heater sleeve 400. The collection module 70 can then collect waste materials, such as iron filings, generated when the first cutting module 30 and the second cutting module 40 cut the voltage regulator electric heater sleeve 400. The collection module 70 can conveniently collect the waste generated during the cutting process, preventing waste from being left on site and negatively impacting the operation of the subsequent voltage stabilizer.

[0043] Continue to refer to Figure 1 An embodiment of this application also proposes a cutting system 300 for a voltage regulator electric heater bushing (hereinafter referred to as the cutting system 300). For example... Figure 1As shown, the cutting system 300 includes the aforementioned cutting device 100 and fixing device 200. The fixing device 200 includes a pre-fixing module 201 and an adjustment module 202. Specifically, the adjustment module 202 is connected to both the pre-fixing module 201 and the clamping module 10 of the cutting device 100. The pre-fixing module 201 is adapted to be fixedly connected to the voltage regulator electric heater sleeve 400, meaning the cutting system 300 is fixedly connected to different parts of the voltage regulator electric heater sleeve 400 via the pre-fixing module 201 and the clamping module 10, thereby improving the stability of the entire cutting system 300 and facilitating the improvement of subsequent cutting stability. In this embodiment, the adjustment module 202 is adapted to adjust the distance between the pre-fixing module 201 and the clamping module 10. Specifically, in this embodiment, the pre-fixing module 201 is first fixedly connected to the voltage regulator electric heater sleeve 400. Then, the adjustment module 202 adjusts the distance between the pre-fixing module 201 and the clamping module 10 so that the pointed blade 31 and the flat blade 41 of the cutting device 100 can be aligned with the position to be cut. Finally, the clamping module 10 is fixedly connected to the voltage regulator electric heater sleeve 400, thereby achieving precise cutting of the position to be cut.

[0044] The basic concepts have been described above. Obviously, for those skilled in the art, the above disclosure is merely illustrative and does not constitute a limitation of this application. Although not explicitly stated herein, those skilled in the art may make various modifications, improvements, and corrections to this application. Such modifications, improvements, and corrections are suggested in this application, and therefore remain within the spirit and scope of the exemplary embodiments of this application.

[0045] Furthermore, this application uses specific terms to describe embodiments of the application. For example, "an embodiment," "one embodiment," and / or "some embodiments" refer to a particular feature, structure, or characteristic related to at least one embodiment of the application. Therefore, it should be emphasized and noted that "an embodiment," "one embodiment," or "an alternative embodiment" mentioned twice or more in different locations in this specification do not necessarily refer to the same embodiment. In addition, certain features, structures, or characteristics in one or more embodiments of the application can be appropriately combined.

[0046] Similarly, it should be noted that, in order to simplify the description of the present application and thus aid in the understanding of one or more embodiments, the foregoing description of the embodiments of the present application sometimes combines multiple features into a single embodiment, drawing, or description thereof. However, this disclosure method does not imply that the subject matter of the present application requires more features than those mentioned in the claims. In fact, the embodiments contain fewer features than all the features of the single embodiments disclosed above.

[0047] Although this application has been described with reference to specific embodiments, those skilled in the art should recognize that the above embodiments are only used to illustrate this application, and various equivalent changes or substitutions can be made without departing from the spirit of this application. Therefore, any changes or modifications to the above embodiments within the essential spirit of this application will fall within the scope of the claims of this application.

Claims

1. A cutting device for the bushing of a voltage regulator electric heater, characterized in that, include: A clamping module adapted to surround and clamp the voltage regulator electric heater sleeve; A rotating module is rotatably connected to the clamping module. The rotating module is adapted to be sleeved on the voltage regulator electric heater sleeve and rotates about the sleeve axis of the voltage regulator electric heater sleeve. At least one cutting module is fixedly connected to the rotating module, wherein the cutting module includes a cutting tool adapted to cut the voltage regulator electric heater sleeve; A toggle module is fixedly connected to the clamping module. The toggle module is adapted to drive the cutting tool of the cutting module, which is located at a preset position, to move toward the direction close to the sleeve axis when the rotating module rotates.

2. The cutting device for the voltage regulator electric heater bushing as described in claim 1, characterized in that, The clamping module includes two clamping bodies, each clamping body having a clamping groove adapted to abut against the voltage regulator electric heater sleeve. The two clamping grooves are adapted to form a first receiving channel for accommodating the voltage regulator electric heater sleeve after the two clamping bodies are docked and fixed.

3. The cutting device for the voltage regulator electric heater bushing as described in claim 1, characterized in that, The rotating module includes two rotating bodies and an annular rotating assembly. The annular rotating assembly is fixedly connected to the clamping module. Each rotating body includes a semi-annular rotating portion. The two rotating bodies are adapted to be mated and fixed, then sleeved on the voltage regulator electric heater sleeve, so that the two semi-annular rotating portions form an annular rotating portion. The annular rotating part is adapted to be sleeved on the annular rotating assembly and rotates about the sleeve axis.

4. The cutting device for the voltage regulator electric heater bushing as described in claim 3, characterized in that, The semi-annular rotating part includes a semi-annular protrusion facing the annular rotating assembly. The two semi-annular concave strips are adapted to form an annular protrusion after the two rotating bodies are docked and fixed. The annular rotating assembly includes an annular rotating recess, which is adapted to accommodate the annular protrusion and abut against the annular protrusion.

5. The cutting device for the voltage regulator electric heater bushing as described in claim 4, characterized in that, The semi-annular rotating part further includes a semi-annular rack disposed opposite to the semi-annular protrusion, and the two semi-annular racks are adapted to form an annular rack after the two rotating bodies are docked and fixed. The cutting device further includes: A drive module is engaged with the annular rack, and the drive module is adapted to drive the annular rack to rotate about the sleeve axis.

6. The cutting device for the voltage regulator electric heater bushing as described in claim 1, characterized in that, The cutting module also includes: A tool holder fixing housing includes a tool holder cavity, and the tool holder fixing housing is fixedly connected to the rotating module; A tool holder slider includes a tool holder through hole, the tool holder slider is at least partially located in the tool holder cavity, the tool holder slider is fixedly connected to the tool, wherein the tip portion of the tool extends outside the tool holder cavity; The propulsion unit includes a first propulsion end, which is located in the tool holder through hole and threadedly connected to the tool holder slider. The propulsion unit is adapted to rotate the first propulsion end in the tool holder through hole after it abuts against the actuation module at the preset position.

7. The cutting device for the voltage regulator electric heater bushing as described in claim 6, characterized in that, The propulsion unit includes: An external gear, which is adapted to rotate after contacting the actuating module; A feed screw includes a screw body, the screw body including a first propulsion end and a second propulsion end opposite to each other, the second propulsion end being connected to the external gear, wherein the screw body is adapted to rotate about its own axis as the external gear rotates.

8. The cutting device for the voltage regulator electric heater bushing as described in claim 7, characterized in that, The propulsion unit also includes: The clutch disc includes a clutch surface facing the external gear and a clutch hole penetrating the clutch disc; A plurality of set screws, including set screws and set beads, are provided. The set screws are fixedly connected to the engagement surface around the engagement hole. Each set bead is connected to the end of the corresponding set screw away from the engagement surface. The external gear includes a gear surface facing the clutch disc, the gear surface having a plurality of ball grooves, the ball grooves being adapted to accommodate the corresponding balls and abut against the balls.

9. The cutting device for the voltage regulator electric heater bushing as described in claim 6, characterized in that, The tool holder fixing housing has a through-hole for limiting the cutting module, which also includes: A push-in limiting member passes through the limiting waist hole and is fixedly connected to the tool holder slider, wherein the push-in limiting member is adapted to abut against the inner wall of the limiting waist hole so that the tool is no longer close to the sleeve axis.

10. The cutting device for the voltage regulator electric heater bushing as described in claim 1, characterized in that, The at least one cutting module includes a first cutting module and a second cutting module. The cutting tool of the first cutting module includes a pointed blade, and the cutting tool of the second cutting module includes a flat blade. When the first cutting module and the second cutting module are configured to cut the bushing of the voltage regulator electric heater, the pointed blade is closer to the bushing axis than the flat blade.

11. The cutting device for the voltage regulator electric heater bushing as described in claim 1, characterized in that, Also includes: A collection module is adapted to be sleeved on the voltage regulator electric heater sleeve and located on the side of the at least one cutting module away from the rotating module. The collection module is adapted to receive the waste generated by the at least one cutting module from cutting the voltage regulator electric heater sleeve.

12. A cutting system for a voltage regulator electric heater bushing, characterized in that, include: The cutting apparatus as described in any one of claims 1 to 11; as well as The fixing device includes a pre-fixing module connected to the clamping module of the cutting device, and the pre-fixing module is adapted to be fixedly connected to the sleeve of the voltage regulator electric heater.

13. The cutting system for the voltage regulator electric heater bushing as described in claim 12, characterized in that, The fixing device also includes: An adjustment module is provided, which is connected to both the pre-fixing module and the clamping module, and is adapted to adjust the distance between the pre-fixing module and the clamping module.

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