A transformer production fastening machine

Abstract

The present invention relates to the technical field of transformer production equipment, and specifically, to a transformer production fastening machine. It includes a working module arranged on the top of a frame, the working module includes a base fixedly connected to the top of the frame, a cantilever frame is fixedly connected to one side of the top of the base, a fastening station is arranged on one side of the cantilever frame above the base, and a mounting plate is slidably connected to the upper part of the cantilever frame on the side close to the fastening station; in the transformer production fastening machine, a fastening mechanism is arranged to tighten the screws on the transformer accessories to be fastened, a lifting mechanism is used to adjust the distance between the bottom of the fastening mechanism and the fastening station, and in the process of the fastening mechanism fastening the transformer screws, an energy absorption mechanism is used to reduce the vibration amplitude of the fastening mechanism in the vertical direction, and the energy absorption mechanism can absorb the vibration caused by the fastening mechanism to the surroundings in the horizontal direction, thereby preventing the anti-corrosion coating on the surface of the transformer screw from being damaged due to the vibration dislocation of the fastening sleeve.

Description

Technical Field

[0001] The invention relates to the technical field of transformer production equipment, in particular to a transformer production fastening machine. Background Art

[0002] When producing spare parts for transformers and tightening the screws on the parts, the transformer screws need to be tightened to ensure that they can withstand the vibration, electromagnetic force and other factors during the operation of the transformer without loosening. For example, when tightening the clamping screws of the transformer core, excessive torque may damage the insulation layer of the core laminations and affect the performance of the transformer; if the torque is too small, the core cannot be clamped tightly, and the core may become loose, the vibration may increase, and noise may even damage the transformer during the operation of the transformer. It is difficult to control the torque accuracy when tightening manually with a wrench, so a screw tightening machine is usually needed to tighten nuts and bolts on the spare parts of the transformer.

[0003] Compared with ordinary screws that value mechanical properties such as strength and hardness, transformer screws pay more attention to electromagnetic properties and corrosion resistance because transformers are mostly installed outdoors. However, when using a transformer screw tightening machine, the motor drives the fastening components to rotate and then tightens the screws. The motor will inevitably vibrate during the above work process, which can easily damage the corrosion-resistant coating on the surface of the screw.

[0004] In view of this, we propose a transformer production fastening machine to improve the deficiencies in the prior art. Summary of the invention

[0005] The object of the present invention is to provide a transformer production fastening machine to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides a transformer production fastening machine, comprising a working module arranged on the top of a frame, the working module comprising a base fixedly connected to the top of the frame, a top side of the base fixedly connected to a cantilever frame, one side of the cantilever frame is provided with a fastening station above the base, and a fixed plate is slidably connected to the upper part of the cantilever frame on one side close to the fastening station;

[0007] The fixed plate is fixedly connected with a lifting mechanism on one side facing the fastening station, the lifting mechanism at least comprises a lifting plate that can slide up and down, the top of the lifting plate is fixedly connected with an energy absorbing mechanism, and a fastening mechanism is provided below the energy absorbing mechanism;

[0008] The fastening mechanism is used to tighten the screws on the transformer accessories to be fastened, and the lifting mechanism is used to adjust the distance between the bottom of the fastening mechanism and the fastening station;

[0009] During the process of the fastening mechanism fastening the transformer screws, the energy absorbing mechanism is used to reduce the vibration amplitude of the fastening mechanism in the vertical direction, and the energy absorbing mechanism can absorb the vibration caused by the fastening mechanism to the surroundings in the horizontal direction.

[0010] As a further improvement of the present technical solution, the lifting mechanism also includes a plurality of limit cavities fixedly connected to the fixed plate, each of the limit cavities is slidably connected to a limit rod, the bottom of each limit rod is fixedly connected to the lifting plate, and the lifting mechanism also includes a hydraulic rod, a fixed part of the hydraulic rod is fixedly connected to the fixed plate, and a sliding part of the hydraulic rod is fixedly connected to the lifting plate.

[0011] As a further improvement of the technical solution, the energy absorbing mechanism includes a plurality of guide rods fixedly connected to the top of the lifting plate, and a mounting plate for mounting the fastening mechanism is sleeved on the plurality of guide rods.

[0012] As a further improvement of the present technical solution, a plurality of stabilizing cavities are fixedly connected to the top of the mounting plate, each of the stabilizing cavities is sleeved on the outside of the guide rod, a fixing cap is fixedly connected to the top of each guide rod, an energy absorbing block is provided in each stabilizing cavity, the inner wall of the energy absorbing block is tightly against the outer wall of the guide rod, the outer wall of the energy absorbing block is tightly against the inner wall of the stabilizing cavity, a spring is sleeved on the upper part of each guide rod, the bottom of the spring is fixedly connected to the energy absorbing block, and the top of the spring is fixedly connected to the fixing cap.

[0013] As a further improvement of the present technical solution, the fastening mechanism includes a motor fixedly connected to the top of the mounting plate and a working chamber fixedly connected to the bottom of the mounting plate, the bottom of the working chamber is rotatably connected to a fastening sleeve, and the top of the fastening sleeve is coaxially connected to the output shaft of the motor.

[0014] As a further improvement of the technical solution, the energy absorbing block is made of elastic material.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] In the transformer production tightening machine, a tightening mechanism is provided for tightening the screws on the transformer accessories to be tightened, and a lifting mechanism is used to adjust the distance between the bottom of the tightening mechanism and the tightening station. In the process of the tightening mechanism tightening the transformer screws, the energy absorbing mechanism is used to reduce the vibration amplitude of the tightening mechanism in the vertical direction, and the energy absorbing mechanism can absorb the vibration caused by the tightening mechanism to the surroundings in the horizontal direction, thereby preventing the anti-corrosion coating on the surface of the transformer screw from being damaged due to the vibration dislocation of the tightening sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 It is a local structural stereogram of the present invention;

[0019] Figure 3 It is a structural diagram of the working modules of the present invention;

[0020] Figure 4 It is a structural diagram of the lifting mechanism of the present invention;

[0021] Figure 5 It is a cutaway view of the energy absorbing mechanism of the present invention;

[0022] Figure 6 For the present invention Figure 5 The enlarged view of point A in the middle;

[0023] Figure 7 It is a front view of the fastening mechanism of the present invention.

[0024] The meaning of each number in the figure is:

[0025] 100, frame; 110, base; 120, fastening station; 130, overhead frame; 140, fixing plate;

[0026] 200, lifting mechanism; 210, limiting cavity; 220, limiting rod; 230, lifting plate; 240, hydraulic rod;

[0027] 300, energy absorbing mechanism; 310, guide rod; 320, mounting plate; 330, stabilizing cavity; 340, fixing cap; 350, energy absorbing block; 360, spring;

[0028] 400, fastening mechanism; 410, motor; 420, working chamber; 430, fastening sleeve. DETAILED DESCRIPTION

[0029] The following will be combined with the accompanying drawings in the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] The process of producing transformers includes the step of tightening transformer parts. Too much torque may damage the insulation layer of the core laminations and affect the performance of the transformer. Too little torque cannot ensure the core is clamped tightly, and the core may become loose, vibration may increase, noise may be generated, and even the transformer may be damaged during operation. It is difficult to control the torque accuracy when tightening manually with a wrench, so it is usually necessary to use a transformer production tightening machine to tighten the screws on the transformer parts while ensuring the accuracy of the screw torque.

[0031] See also Figure 1 and Figure 2 As shown, the purpose of this embodiment is to provide a transformer production fastening machine, including a working module arranged on the top of a frame 100, the working module includes a base 110 fixedly connected to the top of the frame 100, a top side of the base 110 is fixedly connected with a cantilever frame 130, one side of the cantilever frame 130 is provided with a fastening station 120 above the base 110, and a fixing plate 140 is slidably connected to the upper part of the cantilever frame 130 on a side close to the fastening station 120;

[0032] The fixed plate 140 is fixedly connected with a lifting mechanism 200 on one side facing the fastening station 120. The lifting mechanism 200 includes at least a lifting plate 230 that can slide up and down. The top of the lifting plate 230 is fixedly connected with an energy absorbing mechanism 300. A fastening mechanism 400 is provided below the energy absorbing mechanism 300.

[0033] The fastening mechanism 400 is used to tighten the screws on the transformer accessories to be fastened, and the lifting mechanism 200 is used to adjust the distance between the bottom of the fastening mechanism 400 and the fastening station 120;

[0034] During the process of the fastening mechanism 400 fastening the transformer screws, the power part of the fastening mechanism 400 (i.e., the motor 410 to be described below) will inevitably generate vibrations during operation. In order to reduce the damage to the surface of the transformer screws caused by these vibrations, an energy absorption mechanism 300 is provided to reduce the vibration amplitude of the fastening mechanism 400 in the vertical direction, and the energy absorption mechanism 300 can absorb the vibrations caused by the fastening mechanism 400 to the surroundings in the horizontal direction.

[0035] That is to say, compared with the traditional buffering structures such as elastic gaskets that can only play a buffering and energy-absorbing role in the vertical direction, in fact, the position deviation of the fastening part (i.e., the fastening sleeve 430 to be described below) in the horizontal direction caused by the vibration of the power part of the fastening mechanism 400 is more likely to cause the corrosion-resistant coating on the surface of the fastened transformer screw to be damaged, thereby reducing the service life. The energy absorption mechanism 300 used in the present invention can reduce the position deviation of the fastening part of the fastening mechanism 400 caused by the vibration of its power part in multiple dimensions, both vertically and horizontally.

[0036] During the production of the transformer, different parts are placed on the fastening station 120, and the screws on the transformer parts may be in different stages, so a lifting mechanism 200 is provided to adjust the distance between the fastening mechanism 400 and the screws.

[0037] like Figure 3 and Figure 4As shown, the lifting mechanism 200 also includes a plurality of limit cavities 210 fixedly connected to the fixed plate 140, each limit cavity 210 is slidably connected with a limit rod 220, and the bottom of each limit rod 220 is fixedly connected to the lifting plate 230. The lifting mechanism 200 also includes a hydraulic rod 240, a fixed part of the hydraulic rod 240 is fixedly connected to the fixed plate 140, and a sliding part of the hydraulic rod 240 is fixedly connected to the lifting plate 230.

[0038] With the assistance of the limiting rod 220 and the limiting cavity 210, after the transformer accessory that needs to be tightened is placed on the tightening station 120, the hydraulic rod 240 is started, and its movable part drives the lifting plate 230 to move downward or upward (depending on the distance from the bottom of the fastening mechanism 400 to the transformer screw), so that the fastening part of the fastening mechanism 400 is close to the transformer screw, and then tighten it.

[0039] When using a transformer screw tightening machine, the power part drives the fastening part to rotate, and then when tightening the screw, the power part will inevitably vibrate during the above work process, which can easily damage the corrosion-resistant coating on the surface of the screw. The elastic gasket and other structures used in the prior art can only alleviate its vibration in the vertical direction, but cannot absorb the jitter in the horizontal direction. It is precisely the vibration in the horizontal direction that can easily cause the fastening part and the screw to be misaligned, thereby causing damage to the screw coating.

[0040] Next, through Figure 5 and Figure 6 The specific structure of the energy absorbing mechanism 300 is disclosed. The energy absorbing mechanism 300 includes a plurality of guide rods 310 fixedly connected to the top of the lifting plate 230 , and a mounting plate 320 for mounting the fastening mechanism 400 is sleeved on the plurality of guide rods 310 .

[0041] Moreover, a plurality of stabilizing cavities 330 are fixedly connected to the top of the mounting plate 320, each stabilizing cavity 330 is sleeved on the outside of the guide rod 310, a fixing cap 340 is fixedly connected to the top of each guide rod 310, an energy absorbing block 350 is provided in each stabilizing cavity 330, the inner wall of the energy absorbing block 350 is tightly against the outer wall of the guide rod 310, the outer wall of the energy absorbing block 350 is tightly against the inner wall of the stabilizing cavity 330, a spring 360 is sleeved on the upper part of each guide rod 310, the bottom of the spring 360 is fixedly connected to the energy absorbing block 350, and the top of the spring 360 is fixedly connected to the fixing cap 340.

[0042] It should be noted that the energy absorbing block 350 is made of elastic material.

[0043] That is to say, when the fastening mechanism 400 starts to work, the vibration it generates in the vertical direction causes the mounting plate 320 to have a tendency to slide up and down, and this sliding tendency is hindered by: the friction between the energy absorbing block 350 and the stabilizing cavity 330 + the friction between the energy absorbing block 350 and the guide rod 310 + the deformation resistance of the spring 360, thereby ensuring the stability of the position of the fastening mechanism 400 in the vertical direction during operation; the shaking it causes in the horizontal direction causes the mounting plate 320 to have a tendency to shift in the horizontal direction. At this time, no matter in which direction the mounting plate 320 shakes in the horizontal direction, When the fastening mechanism 400 is in operation, no matter in which vertical and horizontal directions it shakes (there is only up and down shaking in the vertical direction, because the shaking of the stabilizing cavity 330 is limited by the guide rod 310), the energy generated by the vibration will be absorbed by the damping materials such as the energy absorbing block 350 and the spring 360, ensuring that the protective coating on the surface of the screw will not be damaged due to misalignment with the fastening mechanism 400 during the tightening process of the transformer screw.

[0044] like Figure 7 As shown, the fastening mechanism 400 includes a motor 410 fixedly connected to the top of the mounting plate 320 and a working chamber 420 fixedly connected to the bottom of the mounting plate 320. The bottom of the working chamber 420 is rotatably connected to a fastening sleeve 430, and the top of the fastening sleeve 430 is coaxially connected to the output shaft of the motor 410.

[0045] With the cooperation of the above-mentioned components, the motor 410 starts to rotate after being powered on, and the motor 410 then drives the fastening sleeve 430 fixedly connected to its output shaft to rotate, thereby tightening the screws on the transformer accessories.

[0046] In summary, the working principle of the present invention is as follows:

[0047] During the production of the transformer, the transformer accessories that need to be tightened are placed on the tightening station 120, and then the hydraulic rod 240 is started, and its movable part drives the lifting plate 230 to move downward or upward (depending on the distance from the bottom of the tightening mechanism 400 to the transformer screw), so that the tightening part of the tightening mechanism 400 is close to the transformer screw, and then tightened.

[0048] When the motor 410 starts to work, the vibration generated in the vertical direction causes the mounting plate 320 to have a tendency to slide up and down, and this sliding tendency is hindered by the friction between the energy absorbing block 350 and the stabilizing cavity 330 + the friction between the energy absorbing block 350 and the guide rod 310 + the deformation resistance of the spring 360, thereby ensuring the stability of the position of the fastening sleeve 430 in the vertical direction during operation; and the jitter caused in the horizontal direction causes the mounting plate 320 to have a tendency to shift in the horizontal direction. At this time, the energy absorbing block 350 inside the stabilizing cavity 330 Due to the compression of the inner wall of the stabilizing cavity 330, the energy of the horizontal shaking of the mounting plate 320 is absorbed. Therefore, in the process of tightening the transformer screw with the fastening sleeve 430, no matter in which vertical and horizontal directions it shakes (there is only up and down shaking in the vertical direction, because the shaking of the stabilizing cavity 330 is limited by the guide rod 310), the energy generated by the vibration will be absorbed by the damping materials such as the energy absorbing block 350 and the spring 360, ensuring that the protective coating on the surface of the screw will not be damaged due to misalignment with the fastening sleeve 430 during the tightening process of the transformer screw.

[0049] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A transformer production fastening machine, comprising a working module arranged on the top of a frame (100), the working module comprising a base (110) fixedly connected to the top of the frame (100), a top side of the base (110) being fixedly connected to a cantilever frame (130), a side of the cantilever frame (130) being provided with a fastening station (120) above the base (110), and a fixing plate (140) being slidably connected to the upper part of the cantilever frame (130) on a side close to the fastening station (120), characterized in that: The fixed plate (140) is fixedly connected to a lifting mechanism (200) on one side facing the fastening station (120), the lifting mechanism (200) at least comprising a lifting plate (230) capable of sliding up and down, the top of the lifting plate (230) is fixedly connected to an energy absorbing mechanism (300), and a fastening mechanism (400) is provided below the energy absorbing mechanism (300); The fastening mechanism (400) is used to tighten the screws on the transformer accessories to be fastened, and the lifting mechanism (200) is used to adjust the distance between the bottom of the fastening mechanism (400) and the fastening station (120); During the process of the fastening mechanism (400) fastening the transformer screws, the energy absorbing mechanism (300) is used to reduce the vibration amplitude of the fastening mechanism (400) in the vertical direction, and the energy absorbing mechanism (300) can absorb the vibration caused by the fastening mechanism (400) to the surroundings in the horizontal direction.

2. The transformer production fastening machine according to claim 1, characterized in that: The lifting mechanism (200) further comprises a plurality of limiting cavities (210) fixedly connected to the fixed plate (140), each limiting cavity (210) being slidably connected to a limiting rod (220), the bottom of each limiting rod (220) being fixedly connected to the lifting plate (230), and the lifting mechanism (200) further comprises a hydraulic rod (240), the fixed portion of the hydraulic rod (240) being fixedly connected to the fixed plate (140), and the sliding portion of the hydraulic rod (240) being fixedly connected to the lifting plate (230).

3. The transformer production fastening machine according to claim 1, characterized in that: The energy absorbing mechanism (300) comprises a plurality of guide rods (310) fixedly connected to the top of the lifting plate (230), and a mounting plate (320) for mounting the fastening mechanism (400) is sleeved on the plurality of guide rods (310).

4. The transformer production fastening machine according to claim 3, characterized in that: A plurality of stabilizing cavities (330) are fixedly connected to the top of the mounting plate (320), each of the stabilizing cavities (330) is sleeved on the outside of the guide rod (310), a fixing cap (340) is fixedly connected to the top of each of the guide rods (310), an energy absorbing block (350) is arranged in each of the stabilizing cavities (330), the inner wall of the energy absorbing block (350) is in close contact with the outer wall of the guide rod (310), and the outer wall of the energy absorbing block (350) is in close contact with the inner wall of the stabilizing cavity (330), and a spring (360) is sleeved on the upper part of each of the guide rods (310), the bottom of the spring (360) is fixedly connected to the energy absorbing block (350), and the top of the spring (360) is fixedly connected to the fixing cap (340).

5. The transformer production fastening machine according to claim 3, characterized in that: The fastening mechanism (400) comprises a motor (410) fixedly connected to the top of the mounting plate (320) and a working chamber (420) fixedly connected to the bottom of the mounting plate (320); a fastening sleeve (430) is rotatably connected to the bottom of the working chamber (420); and the top of the fastening sleeve (430) is coaxially connected to the output shaft of the motor (410).

6. The transformer production fastening machine according to claim 4, characterized in that: The energy absorbing block (350) is made of elastic material.

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