Press fitting machine for interference fit installation of hollow composite insulator flange

Abstract

The utility model discloses a press-fitting machine for hollow composite insulator flange interference fit installation, which comprises a horizontal main body frame, a moving trolley and a lifting mechanism, the horizontal main body frame is provided with a horizontal guide rail, the moving trolley is movably matched with the horizontal guide rail, the moving trolley comprises a first moving trolley and a second moving trolley, and the lifting mechanism is arranged on the first moving trolley. The first moving trolley is provided with a first press-fitting disc, the second moving trolley is provided with a second press-fitting disc, and the first press-fitting disc and the second press-fitting disc are oppositely arranged. The insulating tube is lifted by the lifting mechanisms, the metal flanges are installed at the two ends of the insulating tube, the two moving trolleys move oppositely, the pair of press-fitting discs act on the metal flanges at the two ends of the insulating tube, and the coaxiality of the insulating tube and the metal flanges is guaranteed. According to the utility model, the assembly of the insulating tube and the metal flange can be realized by utilizing the movement of the guide rail and the press-fitting disc, the measurement of parallelism is not needed, and the applied clamping force is adjustable, so that the production efficiency and the product quality are improved.

Description

Technical Field

[0001] This utility model relates to power equipment, specifically to production equipment for hollow composite insulators. Background Art

[0002] Hollow composite insulators are used in AC / DC power grid projects. As an important component of electrical equipment, hollow composite insulators mainly bear various electrical and mechanical stresses, and their reliability is crucial to the safe and reliable operation of the equipment itself. Hollow composite insulators mainly consist of a silicone rubber sheath, an insulating tube, and a metal flange. The metal flange and the insulating tube are usually bonded together using an adhesive structure. The mechanical properties of the hollow composite insulator mainly depend on the strength of the insulating tube and the connection design between the insulating tube and the flange.

[0003] Currently, the existing technical solution on the market requires two binding clamps, four binding rods, and nuts for fixing one product. During fixing, the four corners of the binding clamps must be measured to ensure consistent dimensions, thereby guaranteeing the parallelism of the metal flanges. After clamping, the product is hoisted into a binding oven for heat curing. Figure 1 As shown.

[0004] The disadvantages of the existing technology are: each specification of product requires two gluing fixtures and four gluing tie rods for gluing, and four sets need to be made at the same time for mass production; during the gluing process, the four gluing tie rods are locked manually, and the locking force cannot be balanced, so the parallelism of the product cannot be guaranteed; after curing one end of the metal flange, it needs to be lifted out of the oven, turned around and then the other end of the metal flange is cured; non-standard long specifications of products are inconvenient to clamp and require the assistance of crane transportation. Utility Model Content

[0005] The technical problem solved by this utility model is that traditional batch gluing production of products involves multiple sets of gluing fixtures and drying ovens, which are complicated and cumbersome to install. The parallelism of the products is inaccurate, the clamping force cannot be quantified, and the processing cost is increased due to repeated turning and transportation after curing.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a press-fitting machine for interference fit installation of hollow composite insulator flanges, comprising a horizontal main frame, a moving trolley and a lifting mechanism. The horizontal main frame is provided with a horizontal guide rail, and the moving trolley is movably fitted with the horizontal guide rail. The moving trolley includes a first moving trolley and a second moving trolley. The first moving trolley is provided with a first pressing plate, and the second moving trolley is provided with a second pressing plate. The first pressing plate and the second pressing plate are arranged facing each other, and a plurality of lifting mechanisms are located between the first moving trolley and the second moving trolley.

[0007] According to the above technical solution, the insulating tube is supported by several lifting mechanisms and lies horizontally between a first moving trolley and a second moving trolley. Metal flanges are installed at both ends of the insulating tube. The first moving trolley moves towards the first end of the insulating tube, and a first pressing plate acts on the metal flange at the first end of the insulating tube. The second moving trolley moves towards the second end of the insulating tube, and a second pressing plate acts on the metal flange at the second end of the insulating tube. Adhesive is injected into the injection holes on the metal flanges, and the adhesive is injected into the adhesive groove between the metal flanges and the insulating tube, bonding the metal flanges and the insulating tube. With a high-precision horizontal guide rail, the several lifting mechanisms, in conjunction with a pair of pressing plates, ensure the coaxiality of the insulating tube and the metal flanges.

[0008] The first moving trolley is connected to the piston rod of the hydraulic cylinder, which is located at one end of the horizontal main frame. Driven by the hydraulic cylinder, a pair of piston rods drive the first moving trolley to move towards the metal flange at the beginning of the insulating tube.

[0009] The first moving trolley is equipped with several first rollers on both sides, and the first rollers cooperate with the horizontal guide rail.

[0010] The first moving trolley is equipped with a rotary motor, which drives a driven pulley via a transmission belt. The driven pulley is coaxially fixed to the first pressing plate, which is pivotally connected to the first moving trolley. Driven by the rotary motor, the transmission belt drives the driven pulley to rotate, which in turn drives the first pressing plate to rotate synchronously, thereby achieving the desired installation angle of the aluminum flanges at both ends of the product.

[0011] The first moving trolley is equipped with a first glue injection and cooling mechanism. Glue is pressed into the first glue injection and cooling mechanism and then injected into the glue injection hole on the metal flange at the head end of the insulating tube.

[0012] The second moving trolley has several second rollers on both sides, and driven sprockets are mounted on the shafts of the second rollers. The driven sprockets are connected to a drive motor via a transmission chain, and the drive motor is mounted on the bottom of the second moving trolley. Driven by the drive motor, the transmission chain drives the driven sprockets, which in turn drive the second roller shafts and the second rollers, causing the second moving trolley to move along a horizontal guide rail.

[0013] The second moving trolley is equipped with a second glue injection and cooling mechanism. The glue is pressed into the second glue injection and cooling mechanism and then injected into the glue injection hole on the metal flange at the tail end of the insulating tube.

[0014] For products of different specifications, all rollers and guide rails of the mobile trolley must be heat-treated to ensure that they can withstand the load (≤20T) during operation and have wear resistance.

[0015] Each lifting mechanism includes a U-shaped bracket, a first vertical lead screw mechanism located on one side of the U-shaped bracket, and a second vertical lead screw mechanism located on the other side of the U-shaped bracket. The lead screws of the first and second vertical lead screw mechanisms are connected by a synchronous belt. The lead screw of the first vertical lead screw mechanism is connected to a lifting motor, which is mounted on the U-shaped bracket. The two ends of the lifting beam are connected to the lead screw nuts of the first and second vertical lead screw mechanisms. V-blocks are provided on the lifting beam. The lifting motor drives the lead screw of the first vertical lead screw mechanism to rotate, and this lead screw drives the lead screw of the second vertical lead screw mechanism to rotate via the synchronous belt. The two lead screw mechanisms synchronously drive the lifting beam to rise and fall, thereby adjusting the height and level of the insulating tube.

[0016] The U-shaped bracket has pulleys on both sides, which cooperate with slide rails. The slide rails are mounted on the horizontal main frame, and the pulleys are connected to a displacement motor, which is mounted on the U-shaped bracket. Driven by the displacement motor, the pulleys move along the slide rails, driving the entire lifting mechanism to move along the slide rails, thereby adjusting the lifting position of the lifting mechanism on the insulating tube.

[0017] Compared with the prior art, the present invention has the following technical advantages:

[0018] First, the pressure packing tray has strong compatibility and is suitable for the gluing of products of different specifications.

[0019] Second, each pressing plate is equipped with an electromagnetic induction heating coil, and the metal flanges at both ends of the product can be heated and cured simultaneously.

[0020] Third, the hydraulic cylinder and piston rod replace the glued tie rod nut locking connection method, ensuring parallelism and balanced pressing force;

[0021] Fourth, multiple lifting mechanisms ensure the coaxiality of the insulating tube and the metal flange, and the protection of the end face of the insulating tube is improved during the pressing process.

[0022] This invention utilizes guide rails and hydraulic cylinders to control the movement of a pressing plate with electromagnetic induction heating, eliminating the need for parallelism measurement. Furthermore, the applied clamping force is adjustable, thereby improving production efficiency and product quality. Attached Figure Description

[0023] The present invention will be further described below with reference to the accompanying drawings:

[0024] Figure 1 This is a schematic diagram of an adhesive-bonded insulating tube and a metal flange in the prior art;

[0025] Figure 2 A schematic diagram of a press-fitting machine used for interference fit installation of hollow composite insulator flanges;

[0026] Figure 3A top view of a press-fitting machine used for interference fit installation of hollow composite insulator flanges;

[0027] Figure 4 This is a schematic diagram of the first moving trolley 30;

[0028] Figure 5 This is a schematic diagram of the first moving trolley 30 from another perspective;

[0029] Figure 6 This is a schematic diagram of the second moving trolley 40;

[0030] Figure 7 This is a schematic diagram from another perspective regarding the small car 40;

[0031] Figure 8 A schematic diagram of any of the lifting mechanisms 20;

[0032] Figure 9 A schematic diagram of the lifting mechanism 20 from another perspective;

[0033] Figure 10 This is a schematic diagram showing the lifting mechanism 20 from below.

[0034] Explanation of symbols in the diagram:

[0035] 10. Horizontal main frame; 11. Horizontal guide rail; 12. Slide rail;

[0036] 20. Lifting mechanism; 21. U-shaped bracket; 22. First vertical screw mechanism; 23. Second vertical screw mechanism; 24. Synchronous belt; 25. Lifting motor; 26. Lifting beam; 27. V-block; 28. Pulley; 29. ​​Displacement motor;

[0037] 30. First moving trolley; 31. First pressing plate; 32. First roller; 33. Rotating motor; 34. Drive belt; 35. First glue injection and cooling mechanism;

[0038] 40. Second moving trolley; 41. Second pressing plate; 42. Second roller; 43. Transmission chain; 44. Drive motor; 45. Second glue injection and cooling mechanism;

[0039] 50. Hydraulic cylinder; 51. Piston rod;

[0040] 90. Insulating tube; 91. Metal flange; 92. Adhesive clamp; 93. Adhesive tie rod; 94. Adhesive injection hole; 95. Support frame; 96. Adhesive drying oven; 97. Finned U-shaped heating tube. DETAILED DESCRIPTION

[0041] refer to Figure 2 , Figure 3A press-fitting machine for interference fit installation of hollow composite insulator flanges includes a horizontal main frame 10, a moving trolley and a lifting mechanism 20. The horizontal main frame is provided with a horizontal guide rail 11. The moving trolley is movably fitted with the horizontal guide rail. The moving trolley includes a first moving trolley 30 and a second moving trolley 40. The first moving trolley is provided with a first pressing plate 31 and the second moving trolley is provided with a second pressing plate 41. The first pressing plate and the second pressing plate are arranged facing each other. Several lifting mechanisms are located between the first moving trolley and the second moving trolley.

[0042] The first moving trolley 30 is connected to the piston rod 51 of the hydraulic cylinder, which is located at one end of the horizontal main frame 10.

[0043] refer to Figure 4 , Figure 5 The first moving trolley 30 has several first rollers 32 on both sides, and the first rollers cooperate with the horizontal guide rail 11.

[0044] The first moving trolley 30 is equipped with a rotary motor 33, which drives a driven pulley through a transmission belt 34. The driven pulley is coaxially fixed with the first pressing plate 31, which is pivotally connected to the first moving trolley.

[0045] The first moving trolley 30 is equipped with a first glue injection and cooling mechanism 35.

[0046] refer to Figure 6 , Figure 7 The second moving trolley 40 has several second rollers 42 on both sides, and a driven sprocket is provided on the shaft of the second roller. The driven sprocket is connected to the drive motor 44 through the transmission chain 43. The drive motor is installed at the bottom of the second moving trolley.

[0047] The second mobile trolley 40 is equipped with a second glue injection and cooling mechanism 45.

[0048] refer to Figures 8 to 10 Each lifting mechanism 20 includes a U-shaped bracket 21, a first vertical lead screw mechanism 22 disposed on one side of the U-shaped bracket, and a second vertical lead screw mechanism 23 disposed on the other side of the U-shaped bracket. The lead screws of the first vertical lead screw mechanism and the second vertical lead screw mechanism are connected by a synchronous belt 24. The lead screw of the first vertical lead screw mechanism is connected to a lifting motor 25. The lifting motor is mounted on the U-shaped bracket. The two ends of the lifting beam 26 are connected to the lead screw nuts of the first vertical lead screw mechanism and the second vertical lead screw mechanism. A V-shaped block 27 is provided on the lifting beam.

[0049] The U-shaped bracket 21 has pulleys 28 on both sides. The pulleys cooperate with the slide rail 12. The slide rail is installed on the horizontal main frame 10. The pulleys are connected to the displacement motor 29, which is installed on the U-shaped bracket.

[0050] In actual operation, any one of the lifting mechanisms 20, driven by the displacement motor 29, moves along the slide rail 12 to adjust the lifting position of the lifting mechanism on the insulating tube 90. The insulating tube 90 is supported by several lifting mechanisms 20 and lies flat between the first moving trolley 30 and the second moving trolley 40. The working principle of any one of the lifting mechanisms 20 is as follows: the lifting motor 25 drives the lead screw of the first vertical lead screw mechanism 22 to rotate, and the lead screw drives the lead screw of the second vertical lead screw mechanism 23 to rotate through the synchronous belt 24. The two lead screw mechanisms synchronously drive the lifting beam 26 to rise and fall, thereby realizing the adjustment of the height and level of the insulating tube 90.

[0051] Metal flanges are installed at both ends of the insulating tube 90. Driven by the hydraulic cylinder 50, a pair of piston rods 51 drive the first moving trolley 30 to move along the horizontal guide rail 11 towards the beginning of the insulating tube, causing the first pressing plate 31 to act on the metal flange at the beginning of the insulating tube. Driven by the drive motor 44, the second moving trolley 40 moves along the horizontal guide rail 11 towards the end of the insulating tube, causing the second pressing plate 41 to act on the metal flange at the end of the insulating tube.

[0052] Driven by the rotary motor 33, the transmission belt 34 drives the first pressing plate 31 to rotate to the required flange angle at both ends of the product. The first glue injection and cooling mechanism 35 and the second glue injection and cooling mechanism 45 respectively inject glue into the glue injection holes on the corresponding metal flanges. The glue enters the glue groove between the metal flange and the insulating tube, which plays an adhesive role in bonding the metal flange and the insulating tube.

[0053] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. A press-fitting machine for interference fit installation of hollow composite insulator flanges, comprising a horizontal main frame (10), a moving trolley and a lifting mechanism (20), wherein the horizontal main frame is provided with a horizontal guide rail (11), and the moving trolley is movably fitted with the horizontal guide rail, characterized in that: The mobile trolley includes a first mobile trolley (30) and a second mobile trolley (40). The first mobile trolley is provided with a first pressing plate (31), and the second mobile trolley is provided with a second pressing plate (41). The first pressing plate and the second pressing plate are arranged facing each other, and a number of lifting mechanisms are located between the first mobile trolley and the second mobile trolley.

2. The press-fitting machine for interference fit installation of hollow composite insulator flanges as described in claim 1, characterized in that: The first moving trolley (30) is connected to the piston rod (51) of the oil cylinder, which is located at one end of the horizontal main frame (10).

3. The press-fitting machine for interference fit installation of hollow composite insulator flanges as described in claim 1, characterized in that: The first moving trolley (30) has several first rollers (32) on both sides, and the first rollers cooperate with the horizontal guide rail (11).

4. The press-fitting machine for interference fit installation of hollow composite insulator flanges as described in claim 1, characterized in that: The first moving trolley (30) is equipped with a rotary motor (33), which drives the driven pulley through a transmission belt (34). The driven pulley is coaxially fixed with the first pressing plate (31), which is pivotally connected to the first moving trolley.

5. The press-fitting machine for interference fit installation of hollow composite insulator flanges as described in claim 1, characterized in that: The first mobile trolley (30) is equipped with a first glue injection and cooling mechanism (35).

6. The press-fitting machine for interference fit installation of hollow composite insulator flanges as described in claim 1, characterized in that: The second moving trolley (40) has several second rollers (42) on both sides. The second roller shaft is equipped with a driven sprocket. The driven sprocket is connected to the drive motor (44) through the transmission chain (43). The drive motor is installed at the bottom of the second moving trolley.

7. The press-fitting machine for interference fit installation of hollow composite insulator flanges as described in claim 1, characterized in that: The second mobile trolley (40) is equipped with a second glue injection and cooling mechanism (45).

8. The press-fitting machine for interference fit installation of hollow composite insulator flanges as described in claim 1, characterized in that: Any lifting mechanism (20) includes a U-shaped bracket (21), a first vertical screw mechanism (22) set on one side of the U-shaped bracket, and a second vertical screw mechanism (23) set on the other side of the U-shaped bracket. The screw of the first vertical screw mechanism and the screw of the second vertical screw mechanism are connected by a synchronous belt (24). The screw of the first vertical screw mechanism is connected to a lifting motor (25). The lifting motor is mounted on the U-shaped bracket. The two ends of the lifting beam (26) are connected to the screw nuts of the first vertical screw mechanism and the second vertical screw mechanism. A V-shaped block (27) is provided on the lifting beam.

9. The press-fitting machine for interference fit installation of hollow composite insulator flanges as described in claim 8, characterized in that: The U-shaped bracket (21) has pulleys (28) on both sides. The pulleys cooperate with the slide rail (12). The slide rail is installed on the horizontal main frame (10). The pulleys are connected to the displacement motor (29). The displacement motor is installed on the U-shaped bracket.

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