GIS butt joint face assisting clamping tool

Abstract

The utility model belongs to the field of GIS assembly tool, specifically provides a GIS butt joint face power -assisted clamping tool. The tool includes the frame, is assembled with the rotatable lead screw on the frame, is fixed with the fixed dog on the frame, is connected with the clamping dog on the lead screw, the clamping dog and the lead screw form the screw connection pair, or the both ends of the lead screw are connected with first clamping dog and second clamping dog respectively, first clamping dog and second clamping dog respectively with the lead screw form the screw connection pair, and the thread rotation direction of the both ends of the lead screw is opposite. When butting joint GIS cylinder, rotatable lead screw makes the dog move and pushes the cylinder to complete butt joint. The utility model adopts the lead screw drive dog to move, can accurate control cylinder feed quantity, avoids the impact that the crane directly butt joint produces, and simultaneously solves the problem of time -consuming and labor -intensive that manual directly pushes the cylinder brings, and facilitates on -the -spot butt joint operation.

Description

Technical Field

[0001] This utility model belongs to the field of GIS assembly tools, and in particular relates to a GIS docking surface assist clamping fixture. Background Technology

[0002] like Figure 1 As shown, when GIS cylinders are connected, especially when three phase cylinders are connected simultaneously, the internal conductors and the spring contacts in the contact seats are tightly fitted, resulting in high connection resistance. Additionally, the cylinders themselves are quite heavy. Currently, GIS manufacturers mostly use a crane to assist manual pushing during connection. This requires two workers to observe and adjust from both sides of the cylinder, while another worker controls the crane's feed and manually assists in pushing the cylinder.

[0003] The above methods are not only inefficient, but also difficult to precisely control the crane's feed rate, which can easily cause significant vibration and impact to the internal conductor and insulating basin, potentially leading to micro-cracks invisible to the naked eye inside the insulating basin. During subsequent transportation, installation, and use, these micro-cracks can easily propagate, and in severe cases, may cause the insulating basin to break. Utility Model Content

[0004] The purpose of this utility model is to provide a GIS docking surface assist clamping tool to solve the technical problems of low docking efficiency of GIS cylinders and easy damage to the insulating basin in the prior art.

[0005] To achieve the above objectives, the technical solution of this utility model for a GIS docking surface assisted clamping fixture is as follows: A GIS docking surface assisted clamping fixture includes a frame, a rotatable lead screw mounted on the frame, a fixed jaw fixed on the frame, and a clamping jaw connected to the lead screw. The clamping jaw and the lead screw form a threaded connection pair, so that rotating the lead screw can drive the clamping jaw to move closer to or away from the fixed jaw. In use, the fixed jaw and the clamping jaw respectively contact the flanges of the two docking cylinders, so that rotating the lead screw can push one cylinder to move towards the other cylinder for docking.

[0006] As a further improvement, a bevel gear transmission mechanism is connected to one end of the lead screw. The bevel gear connection mechanism includes a driving bevel gear and a driven bevel gear. The driven bevel gear is connected to the lead screw, and the gear shaft of the driving bevel gear is connected to a rotating handwheel.

[0007] As a further improvement, a handle is connected to the rotating handwheel, and the handle is hinged to the rotating handwheel to form a folding handle.

[0008] As a further improvement, the rotary handwheel is detachably connected to the gear shaft of the drive bevel gear, and the gear shaft of the drive bevel gear is provided with an electric wrench connection part for connecting to the electric wrench to prevent rotation.

[0009] As a further improvement, the fixed jaws and clamping jaws are provided with pins at their ends that are close to each other, for insertion into the flange holes at the ends of the two cylinders respectively.

[0010] As a further improvement, a handle is installed on the frame.

[0011] This utility model is a pioneering invention, and its beneficial effects are: when docking GIS cylinders, the workers use the clamping fixture provided by this utility model to place the fixed jaw and the clamping jaw on both sides of the docking surface, and rotate the handwheel to move the clamping jaw towards the fixed jaw, thereby pushing the two cylinders closer to each other for docking.

[0012] Compared with existing technologies, the clamping jaws are driven by a lead screw, which can precisely control the feed amount of the cylinder, avoid the impact caused by direct docking of the crane, and solve the problem of time-consuming and labor-intensive manual pushing of the cylinder, making on-site docking operations more convenient.

[0013] To achieve the above objectives, another technical solution for a GIS docking surface assisted clamping fixture provided by this utility model is: A GIS docking surface assisted clamping fixture includes a frame on which a rotatable lead screw is mounted. A first clamping jaw and a second clamping jaw are respectively connected to both ends of the lead screw. The first clamping jaw and the second clamping jaw form threaded connections with the lead screw. The threads at both ends of the lead screw turn in opposite directions, so that rotating the lead screw can drive the first and second clamping jaws to move closer or further apart. In use, the first and second clamping jaws respectively contact the flanges of the two docking cylinders, so that rotating the lead screw can push the first and second clamping jaws closer to dock.

[0014] As a further improvement, a bevel gear transmission mechanism is connected to one end of the lead screw. The bevel gear connection mechanism includes a driving bevel gear and a driven bevel gear. The driven bevel gear is connected to the lead screw, and the gear shaft of the driving bevel gear is connected to a rotating handwheel.

[0015] As a further improvement, a handle is connected to the rotating handwheel, and the handle is hinged to the rotating handwheel to form a folding handle.

[0016] As a further improvement, the rotary handwheel is detachably connected to the gear shaft of the drive bevel gear, and the gear shaft of the drive bevel gear is provided with an electric wrench connection part for connecting to the electric wrench to prevent rotation.

[0017] As a further improvement, the first and second clamping claws are provided with pins at their ends that are close to each other, for insertion into the flange holes at the ends of the two cylinders respectively.

[0018] As a further improvement, a handle is installed on the frame.

[0019] This utility model is a pioneering invention, and its beneficial effects are: when docking GIS cylinders, the workers use the clamping fixture provided by this utility model to place the first and second clamping jaws of the clamping fixture on both sides of the docking surface, and rotate the handwheel to move the two clamping jaws closer to each other, thereby pushing the two cylinders closer to each other for docking.

[0020] Compared with existing technologies, the clamping jaws are driven by a lead screw, which can precisely control the feed amount of the cylinder, avoid the impact caused by direct docking of the crane, and solve the problem of time-consuming and labor-intensive manual pushing of the cylinder, making on-site docking operations more convenient. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the GIS cylinder connection. Figure 2 A partial perspective view of the structural schematic diagram of Embodiment 1 of the GIS docking surface assist clamping fixture of this utility model. Figure 3 This is a structural schematic diagram from another perspective of embodiment 1 of the GIS docking surface clamping fixture of this utility model; Figure 4 This is a schematic diagram of the GIS docking surface assist clamping fixture embodiment 1 with the rotating handwheel removed. Figure 5 A schematic diagram of the rotating handwheel (handle extended) of Embodiment 1 of the GIS docking surface assist clamping fixture of this utility model. Figure 6 A schematic diagram of the rotating handwheel (handle folded) of Embodiment 1 of the GIS docking surface assist clamping fixture of this utility model. Figure 7 for Figure 4 A magnified view of a portion of the gear shaft.

[0022] Explanation of reference numerals in the attached figures: 1. Frame; 2. Lead screw; 3. Clamping jaws; 4. Fixing jaws; 5. Pins; 6. Bearings; 7. Bevel gear mechanism; 8. Gear shaft; 9. Rotary handwheel; 10. Handle; 11. Lifting handle. Detailed Implementation

[0023] To address the issues of low docking efficiency and easy damage to the insulating basin in GIS cylinder docking, the basic technical concept of this utility model is to provide a tooling that can assist in docking two cylinders. The tooling includes two jaws, which can respectively contact the two cylinders to be docked, and at least one of the jaws can be driven by a lead screw to move towards the other jaw. Thus, when docking cylinders, the cylinders can be pushed closer to each other by the jaws to achieve docking.

[0024] Based on the above concept, the present invention will be further described in detail below with reference to the embodiments.

[0025] Specific Embodiment 1 of the GIS docking surface assisted clamping fixture provided by this utility model: The GIS docking surface assisted clamping fixture (hereinafter referred to as clamping fixture) provided in this embodiment is as follows: Figures 2-7 As shown, it includes a frame 1, which serves as the base of the clamping fixture. The other components can be directly or indirectly assembled onto the frame 1. A rotatable lead screw 2 is mounted on the frame 1. Specifically, the two ends of the lead screw 2 can be rotatably mounted onto the frame 1 via bearings 6. Preferably, the frame 1 can be configured as a sleeve-shaped structure as shown in the figure.

[0026] A fixing claw 4 is fixed on the frame 1. The fixing claw 4 refers to the claw that is fixed relative to the frame 1. In use, the fixing claw 4 can contact the flange at the end of one of the two GIS cylinders being connected, specifically the flange end face of that cylinder that is away from the other cylinder.

[0027] A clamping jaw 3 is connected to the lead screw 2, forming a threaded connection between the clamping jaw 3 and the lead screw 2. Rotating the lead screw 2 drives the clamping jaw 3 to move linearly, causing the clamping jaw 3 to move closer to or away from the fixed jaw 4. Naturally, a guide groove is provided on the frame 1 to guide the clamping jaw 3. In use, the clamping jaw 3 can contact the flange at the end of the other of the two mating GIS cylinders, specifically the flange end face of that cylinder facing away from the other cylinder.

[0028] When connecting the two cylinders of the GIS, first use a crane to bring them close together. Once the resistance increases after the conductive rod contacts the contact seat, workers can use clamping fixtures placed on both sides of the flange mating surface of the cylinders. Specifically, two clamping fixtures can be placed on the radial sides of the flanges respectively. Rotating the lead screw 2 will actuate the clamping jaws 3, thereby pushing one cylinder closer to the other until the flanges of the two cylinders are fully aligned. Bolts can then be inserted into the flange holes of the two cylinders to complete the connection. After connection, adjust the clamping jaws 3 to move them away from the fixed jaws 4, and then remove the clamping fixtures.

[0029] As can be seen from the above description, compared with the prior art, the clamping fixture in this embodiment is driven by the lead screw 2, which can accurately control the feed amount when the cylinder is docked, avoid the impact caused by direct docking of the crane, and solve the problem of time-consuming and laborious manual pushing of the cylinder, making on-site docking operations more convenient.

[0030] To facilitate manual rotation of the lead screw 2 by the operator, in a preferred embodiment, one end of the lead screw 2 ( Figure 2The left end of the screw 2 is connected to a bevel gear mechanism 7, which includes a driving bevel gear and a driven bevel gear. The driven bevel gear is connected to the lead screw 2, and the driving bevel gear is mounted on a gear shaft 8. The gear shaft 8 serves as a drive shaft and is connected to a rotary handwheel 9. In use, the operator can rotate the rotary handwheel 9 to drive the lead screw 2 to rotate through the bevel gear mechanism 7, thereby moving the clamping jaws 3.

[0031] It is easy to understand that when docking the GIS cylinder, the fixed jaw 4 and the clamping jaw 3 are respectively clamped on both sides of the docking surface. The axis of the lead screw 2 is parallel to the axis of the cylinder. By configuring the rotating handwheel 9 and the bevel gear mechanism 7, this preferred embodiment can switch the operating position of the lead screw 2 (the axis of the gear shaft 8 is perpendicular to the axis of the cylinder), so that the rotating handwheel 9 is away from the cylinder, making it more convenient for on-site personnel to operate.

[0032] Furthermore, such as Figures 2-6 As shown, a handle 10 is connected to the rotating handwheel 9, allowing the operator to hold the handle 10 and rotate the handwheel 9. The handle 10 is hinged to the rotating handwheel 9 and can be folded back to form a folding handle 10. This allows the handle 10 to be folded back when the clamping fixture is not in use, facilitating the storage of the clamping fixture and protecting the handle 10.

[0033] Preferably, in such Figure 3 , Figure 4 and Figure 7 As shown, the rotary handwheel 9 is detachably connected to the gear shaft 8, and the gear shaft 8 is provided with an electric wrench connection part for connecting with the electric wrench to prevent rotation. Specifically, a flat key or spline structure can be provided on the gear shaft 8. This allows the lead screw 2 to have both manual and electric drive modes. When using the electric wrench, the rotary handwheel 9 can be removed, and then the electric wrench can be put on. Starting the electric wrench will drive the gear shaft 8 to rotate, which in turn drives the lead screw 2 to rotate through the bevel gear mechanism 7.

[0034] To facilitate the positioning of the two cylinders during docking, in a preferred embodiment, such as... Figure 2 As shown, the fixed jaw 4 and the clamping jaw 3 are provided with pins 5 at their close ends. The pins 5 are used to insert into the flange holes (smooth holes for bolts to pass through) at the ends of the two cylinders. When docking GIS cylinders, the fixed jaw 4 and the clamping jaw 3 are at the same height. When the pins 5 are inserted into the flange holes, it can be said that the two cylinders are positioned coaxially, which can further improve the docking accuracy.

[0035] In addition, to facilitate the use of the clamping fixture by the operator, in the preferred embodiment, a handle 11 is also installed on the frame 1.

[0036] Specific Embodiment 2 of the GIS docking surface assisted clamping fixture provided by this utility model: The main difference between Embodiment 2 and Embodiment 1 is that in Embodiment 1, the fixed jaw is fixed relative to the frame, and only the clamping jaw is movable. In Embodiment 2, the two jaws can move synchronously, moving closer or further apart. In this case, both jaws can be called clamping jaws, and can be specifically defined as the first clamping jaw and the second clamping jaw.

[0037] Specifically, the first clamping jaw and the second clamping jaw are respectively connected to the two ends of the lead screw, and form threaded connection pairs with the two ends of the lead screw. However, the threads at the two ends of the lead screw turn in opposite directions. When the lead screw rotates, the linear motion directions of the two clamping jaws are opposite, thereby achieving mutual approach and distance. In this way, when docking the GIS cylinder, the two clamping jaws can move simultaneously, driving the two cylinders to approach each other and realize the docking of the end flanges.

[0038] The structure of the bevel gear mechanism connected to the lead screw, the handle, and the pins provided on the two clamping jaws in this embodiment can be completely consistent with the contents described in Embodiment 1, and will not be described in detail here.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of this utility model and is not intended to limit this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still make modifications to the technical solutions described in the foregoing embodiments without creative effort, or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A GIS docking surface assisted clamping fixture, characterized in that, The device includes a frame, on which a rotatable lead screw is mounted. Fixed jaws are fixed on the frame, and clamping jaws are connected to the lead screw. The clamping jaws and the lead screw form a threaded connection pair, so that rotating the lead screw can drive the clamping jaws to move closer to or away from the fixed jaws. In use, the fixed jaws and clamping jaws respectively contact the flanges of the two cylinders to be connected, so that rotating the lead screw can cause the clamping jaws to push one cylinder to move and connect with the other cylinder.

2. The GIS docking surface assisted clamping fixture according to claim 1, characterized in that, A bevel gear transmission mechanism is connected to one end of the lead screw. The bevel gear connection mechanism includes a driving bevel gear and a driven bevel gear. The driven bevel gear is connected to the lead screw, and the gear shaft of the driving bevel gear is connected to a rotating handwheel.

3. The GIS docking surface assisted clamping fixture according to claim 2, characterized in that, The rotating handwheel is connected to a handle, which is hinged to the rotating handwheel to form a folding handle.

4. The GIS docking surface assisted clamping fixture according to claim 2, characterized in that, The rotating handwheel is detachably connected to the gear shaft of the driving bevel gear, and the gear shaft of the driving bevel gear is provided with an electric wrench connection part for connecting with the electric wrench to prevent rotation.

5. The GIS docking surface assisted clamping fixture according to any one of claims 1-4, characterized in that, The fixed jaws and clamping jaws are provided with pins at their ends that are close to each other, so as to be inserted into the flange holes at the ends of the two cylinders respectively.

6. The GIS docking surface assisted clamping fixture according to any one of claims 1-4, characterized in that, The frame is equipped with a handle.

7. A GIS docking surface assisted clamping fixture, characterized in that, The device includes a frame on which a rotatable lead screw is mounted. A first clamping jaw and a second clamping jaw are connected to both ends of the lead screw. The first and second clamping jaws form threaded connections with the lead screw. The threads at both ends of the lead screw turn in opposite directions, so that rotating the lead screw can drive the first and second clamping jaws to move closer or further apart. In use, the first and second clamping jaws contact the flanges of the two cylinders to be joined, so that rotating the lead screw can push the two cylinders closer together.

8. The GIS docking surface assisted clamping fixture according to claim 7, characterized in that, A bevel gear transmission mechanism is connected to one end of the lead screw. The bevel gear connection mechanism includes a driving bevel gear and a driven bevel gear. The driven bevel gear is connected to the lead screw, and the gear shaft of the driving bevel gear is connected to a rotating handwheel.

9. The GIS docking surface assisted clamping fixture according to claim 8, characterized in that, The rotating handwheel is connected to a handle, which is hinged to the rotating handwheel to form a folding handle.

10. The GIS docking surface assisted clamping fixture according to claim 8, characterized in that, The rotating handwheel is detachably connected to the gear shaft of the driving bevel gear, and the gear shaft of the driving bevel gear is provided with an electric wrench connection part for connecting with the electric wrench to prevent rotation.

11. The GIS docking surface assisted clamping fixture according to any one of claims 7-10, characterized in that, The first and second clamping claws are equipped with pins at their closest ends, which are used to insert into the flange holes at the ends of the two cylinders respectively.

12. The GIS docking surface assisted clamping fixture according to any one of claims 7-10, characterized in that, The frame is equipped with a handle.

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