Transformer assembly and transformer installation method

Abstract

The invention belongs to the technical field of transformers, and discloses a transformer assembly and a transformer mounting method, in the transformer assembly, a mounting plate can be limited to a certain extent through a supporting surface, and when the transformer shakes relative to a mounting beam, excessive movement of the transformer can be prevented through the supporting surface, so that the transformer is prevented from falling off. In addition, due to the fact that the width of the first end and the width of the second end are both smaller than the width of the connecting section, the structural strength of the connecting section relative to the first end and the second end is higher, the mounting plate and the limiting supporting structure are both arranged on the connecting section, the mounting beam can be prevented from being bent due to stress, and the overall structure is more stable.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of transformer, in particular to a transformer assembly and a transformer installation method. BACKGROUND

[0002] The locomotive traction transformer is one of the core components of the electric locomotive traction system. In the related art, the transformer is usually fixed on the transformer beam of the vehicle body frame by bolt connection or welding. There are two problems, one is that the transformer is generally heavy, and after being installed on the transformer beam, it is easy to cause the transformer beam to be subjected to a large force, and then be bent; the second is that when the bolt connection scheme is used, the bolt is easy to loosen under long-term vibration, which is easy to cause the displacement or even the falling of the transformer. SUMMARY

[0003] According to one aspect of the present application, the present application provides a transformer assembly to solve the problems that the transformer beam is easy to be subjected to a large force and then be bent, and the transformer is easy to be displaced or even fall off in the prior art.

[0004] To achieve the above purpose, the technical scheme adopted by the present application is as follows:

[0005] The transformer assembly comprises a transformer beam and a transformer, the transformer beam comprises a mounting beam, the mounting beam comprises a first end portion, a connecting segment and a second end portion connected in sequence, the width of the first end portion and the width of the second end portion are both smaller than the width of the connecting segment;

[0006] The transformer assembly further comprises a transformer mounting structure, the transformer mounting structure comprises:

[0007] A mounting plate is fixedly arranged on the transformer and can be fixedly connected to the lower surface of the connecting segment;

[0008] A limiting support structure is fixedly arranged on the connecting segment and has a support surface, the support surface is located below the mounting plate and has a gap between the mounting plate.

[0009] As a preferred scheme of the transformer assembly, the limiting support structure comprises a anti-falling pin fixedly arranged on the connecting segment and an anti-falling cartridge capable of being fixedly sleeved on the anti-falling pin, and the support surface is arranged on the anti-falling cartridge.

[0010] As a preferred scheme of the transformer assembly, one of the anti-falling pin and the anti-falling cartridge is provided with a positioning block, and the other is provided with a positioning groove, and the positioning block is inserted into the positioning groove.

[0011] As a preferred scheme of the transformer assembly, the mounting plate is connected to the lower surface of the connecting segment by a connecting bolt.

[0012] As the preferred scheme of the transformer assembly, an upper buffer pad is arranged between the mounting plate and the lower surface of the connecting section.

[0013] As the preferred scheme of the transformer assembly, a stopper is further fixedly arranged on the lower surface of the connecting section, and a side buffer pad is arranged between the side wall of the mounting plate and the stopper.

[0014] As the preferred scheme of the transformer assembly, the transformer beam comprises two or more mounting beams and a first reinforcing beam fixedly connected between the two mounting beams, and a plurality of transformer mounting structures are arranged, part of the transformer mounting structures are mounted on one of the mounting beams, and the other part of the transformer mounting structures are mounted on the other mounting beam.

[0015] As the preferred scheme of the transformer assembly, the first reinforcing beam is provided with a plurality of second reinforcing beams fixedly connected between any two adjacent first reinforcing beams.

[0016] According to another aspect of the present application, a transformer mounting method is provided, which is implemented by the above transformer assembly and used for mounting the transformer on the transformer beam, in which the mounting plate is connected to the lower surface of the connecting section through the connecting bolt, the limiting support structure comprises a anti-escape pin fixedly arranged on the connecting section and an anti-escape seat capable of being fixedly sleeved on the anti-escape pin, and the support surface is arranged on the anti-escape seat.

[0017] The transformer mounting method comprises:

[0018] S100: hoisting the transformer below the transformer beam;

[0019] S200: rotating the connecting bolt at a preset torque to connect the mounting plate to the lower surface of the connecting section, the preset torque being less than the rated torque;

[0020] S300: fixedly mounting the anti-escape seat on the anti-escape pin to make the support surface below the mounting plate and have a gap between the mounting plate and the support surface;

[0021] S400: tightening the connecting bolt at the rated torque.

[0022] As the preferred scheme of the transformer mounting method, the preset torque is 80% of the rated torque.

[0023] The present application has the following beneficial effects:

[0024] The present application provides a transformer assembly, comprising a transformer beam and a transformer, the transformer beam comprising a mounting beam, the mounting beam comprising a first end portion, a connecting segment and a second end portion connected in sequence, the width of the first end portion and the width of the second end portion are both smaller than the width of the connecting segment; the transformer assembly further comprises a transformer mounting structure, the transformer mounting structure comprising a mounting plate and a limiting support structure, the mounting plate is fixedly arranged on the transformer and can be fixedly connected to the lower surface of the connecting segment; the limiting support structure is fixedly arranged on the connecting segment and has a support surface, the support surface is below the mounting plate and has a gap with the mounting plate, so that the mounting plate can be provided with a certain limit by the support surface, when the transformer shakes relative to the mounting beam, the movement of the transformer can be prevented by the support surface, so that the transformer is prevented from falling off. In addition, since the width of the first end portion and the width of the second end portion are both smaller than the width of the connecting segment, the structural strength of the connecting segment relative to the first end portion and the second end portion is higher, and the mounting plate and the limiting support structure are both arranged on the connecting segment, so that the mounting beam can be prevented from being bent under stress, and the overall structure is more stable.

[0025] The present application also provides a transformer mounting method, which is implemented by the above-mentioned transformer assembly and is used for mounting the transformer on the transformer beam. In the transformer assembly, the mounting plate is connected to the lower surface of the connecting segment by a connecting bolt, the limiting support structure comprises an anti-falling pin fixedly arranged on the connecting segment and an anti-falling seat capable of being fixedly sleeved on the anti-falling pin, and the support surface is arranged on the anti-falling seat. In the transformer mounting method, the transformer is hoisted below the transformer beam; the connecting bolt is screwed with a preset torque to connect the mounting plate to the lower surface of the connecting segment, the preset torque being smaller than the rated torque; the anti-falling seat is fixedly mounted on the anti-falling pin to make the support surface below the mounting plate and have a gap with the mounting plate; and the connecting bolt is tightened with the rated torque. When mounting the transformer, the connecting bolt is first screwed but not tightened, and then the anti-falling seat is mounted to make the support surface below the mounting plate and have a gap with the mounting plate. At this time, since the connecting bolt is not tightened, the position of the mounting plate can still be adjusted according to the actual situation, and after the installation of the anti-falling seat is completed, the connecting bolt is tightened to complete the installation of the transformer. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 is the first structure schematic view of the transformer assembly in the embodiment of the present application;

[0027] Figure 2 is the second structure schematic view of the transformer assembly in the embodiment of the present application;

[0028] Figure 3 is Figure 2 is the enlarged view of A in FIG. 4;

[0029] Figure 4 is the structure schematic view of the transformer beam in the embodiment of the present application;

[0030] Figure 5 Fig. 1 is a schematic view of a partial structure of a transformer assembly in an embodiment of the present application;

[0031] Figure 6 Fig. 2 is an exploded view of the partial structure of the transformer assembly in the embodiment of the present application;

[0032] Figure 7 Fig. 3 is a flow chart of a transformer mounting method in the embodiment of the present application.

[0033] In the drawings:

[0034] 100, transformer beam; 101, mounting beam; 1011, first end portion; 1012, connecting section; 1013, second end portion; 102, first reinforcing beam; 103, second reinforcing beam;

[0035] 200, transformer;

[0036] 300, transformer mounting structure;

[0037] 1, mounting plate;

[0038] 2, connecting bolt; 21, second anti-loosening washer; 22, mounting pad;

[0039] 3, anti-extraction pin; 31, connecting nut; 32, first anti-loosening washer; 33, positioning block;

[0040] 4, anti-extraction clamp; 41, support surface; 42, positioning groove;

[0041] 5, upper cushion pad;

[0042] 6, stop block; 61, side cushion pad. DETAILED DESCRIPTION

[0043] The present application will be further described below in conjunction with the drawings and embodiments. It should be understood that the specific embodiments described herein are intended to be merely illustrative of the present application and not in limitation thereof. It should also be noted that, for the purpose of description, only the parts related to the present application are shown in the drawings rather than all the parts.

[0044] In the description of the present application, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood in a broad sense, for example, can be fixedly connected, or can be detachably connected, or can be integrated; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium; can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0045] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "over" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the first feature is higher in horizontal height than the second feature. The first feature "under", "below" and "under" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the first feature is lower in horizontal height than the second feature.

[0046] In the description of the present embodiment, the terms "upper", "lower", "left", "right" and the like orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are only used to distinguish in description and have no special meaning.

[0047] Embodiment one

[0048] The locomotive traction transformer is one of the core components of the electric locomotive traction system. In the related art, the transformer is usually fixed on the transformer beam of the vehicle body chassis by bolt connection or welding. There are two problems, one is that the transformer is generally heavy, and after being installed on the transformer beam, it is easy to cause the transformer beam to be subjected to a large force, and then to be bent; the second is that when the bolt connection scheme is used, the bolt is easy to loosen under long-term vibration, which is easy to cause the transformer to displace or even fall off.

[0049] To this end, the present embodiment provides a transformer assembly to solve the problems in the prior art that the transformer beam is easy to be subjected to a large force and then to be bent, and the transformer is easy to displace or even fall off, which can be used in the field of transformer technology.

[0050] Reference Figures 1-6The transformer assembly comprises a transformer beam 100 and a transformer 200. In this embodiment, the transformer 200 is used for electric locomotive, and in other embodiments, the transformer 200 can also be used for other electric devices. The transformer beam 100 comprises a mounting beam 101, which comprises a first end portion 1011, a connecting segment 1012 and a second end portion 1013 connected in sequence. The width of the first end portion 1011 and the width of the second end portion 1013 are both less than the width of the connecting segment 1012. The transformer assembly further comprises a transformer mounting structure 300, which comprises a mounting plate 1 and a limiting support structure. The mounting plate 1 is fixedly arranged on the transformer 200 and can be fixedly connected to the lower surface of the connecting segment 1012. The limiting support structure is fixedly arranged on the connecting segment 1012 and has a support surface 41. The support surface 41 is below the mounting plate 1 and has a gap with the mounting plate 1, so that the mounting plate 1 can be limited by the support surface 41. When the transformer 200 shakes relative to the mounting beam 101, the support surface 41 can prevent the transformer 200 from moving too much, thereby avoiding the transformer 200 from falling off. In addition, since the width of the first end portion 1011 and the width of the second end portion 1013 are both less than the width of the connecting segment 1012, the structural strength of the connecting segment 1012 relative to the first end portion 1011 and the second end portion 1013 is higher. The mounting plate 1 and the limiting support structure are both arranged on the connecting segment 1012, which can avoid the mounting beam 101 from being bent under stress, making the overall structure more stable. It can be understood that the gap between the support surface 41 and the mounting plate 1 should be moderate, generally 1-3 mm. If the gap between the support surface 41 and the mounting plate 1 is too large, when the transformer 200 shakes relative to the mounting beam 101, it will cause the mounting plate 1 to generate a large impact force on the support surface 41. If the gap between the support surface 41 and the mounting plate 1 is too small, when the transformer 200 shakes relative to the mounting beam 101, it will make the mounting plate 1 frequently contact with the support surface 41, causing the limiting support structure to also bear alternating stress, thereby causing the limiting support structure to be damaged and unable to realize the supporting and limiting functions.

[0051] With continued reference to Figures 1-6The limiting support structure comprises a anti-dropping pin 3 fixedly arranged on the connecting segment 1012 and an anti-dropping seat 4 capable of being fixedly sleeved on the anti-dropping pin 3, and the support surface 41 is arranged on the anti-dropping seat 4, so that the anti-dropping pin 3 and the anti-dropping seat 4 are connected by sleeving the anti-dropping seat 4 on the anti-dropping pin 3. In the embodiment, the anti-dropping pin 3 and the anti-dropping seat 4 are connected by the connecting nut 31, specifically, the connecting nut 31 is threadedly connected with the anti-dropping pin 3, the anti-dropping pin 3 further has an abutting surface, the anti-dropping seat 4 is sleeved on the anti-dropping pin 3 and arranged between the connecting nut 31 and the abutting surface, and optionally, the first anti-loosening washer 32 is further arranged between the connecting nut 31 and the anti-dropping seat 4, and the connecting nut 31, the first anti-loosening washer 32, the anti-dropping seat 4 and the abutting surface abut in sequence, so as to fixedly connect the anti-dropping pin 3 and the anti-dropping seat 4 and avoid relative rotation between the connecting nut 31 and the anti-dropping seat 4.

[0052] With reference back to Figures 1-6 One of the anti-dropping pin 3 and the anti-dropping seat 4 is provided with a positioning block 33, and the other is provided with a positioning groove 42, the positioning block 33 is inserted into the positioning groove 42, specifically, the positioning block 33 extends along the length direction of the anti-dropping pin 3, so as to position the anti-dropping pin 3 and the anti-dropping seat 4 and avoid relative rotation between the anti-dropping pin 3 and the anti-dropping seat 4. The embodiment exemplarily shows that the positioning block 33 is arranged on the anti-dropping pin 3 and the positioning groove 42 is arranged on the anti-dropping seat 4, while in other embodiments, the positioning block 33 can be arranged on the anti-dropping seat 4 and the positioning groove 42 can be arranged on the anti-dropping pin 3.

[0053] With reference back to Figures 1-6 The mounting plate 1 is connected to the lower surface of the connecting segment 1012 by the connecting bolt 2. Specifically, the connecting bolt 2 has a head and a threaded portion, the threaded portion passes through the mounting plate 1 and is threadedly connected with the connecting segment 1012, and the head and the mounting plate 1 are provided with the second anti-loosening washer 21 capable of being bent, after the installation of the connecting bolt 2 is completed, the second anti-loosening washer 21 can be bent to avoid the rotation of the second anti-loosening washer 21 relative to the connecting bolt 2, so as to further improve the anti-loosening effect. Optionally, the second anti-loosening washer 21 and the mounting plate 1 are further provided with the mounting pad 22.

[0054] With reference back to Figures 1-6 The upper buffer pad 5 is arranged between the mounting plate 1 and the lower surface of the connecting segment 1012, so as to provide buffer for the relative movement between the mounting plate 1 and the lower surface of the connecting segment 1012 and avoid the mounting plate 1 or the connecting segment 1012 from being subjected to a large impact force.

[0055] With reference back to Figures 1-6The lower surface of the connecting segment 1012 is further fixedly provided with a stop block 6, and a side buffer pad 61 is arranged between the side wall of the mounting plate 1 and the stop block 6, so that the lateral movement of the mounting plate 1 can be limited by the stop block 6, and at the same time, the relative movement between the side wall of the mounting plate 1 and the stop block 6 can be buffered by the side buffer pad 61, so as to avoid that the mounting plate 1 or the stop block 6 is subjected to a large impact force.

[0056] With reference to the foregoing Figures 1-6 The transformer beam 100 comprises two mounting beams 101, and the first reinforcing beam 102 is fixedly connected between the two mounting beams 101, so that the overall structural strength between the two mounting beams 101 can be increased by arranging the first reinforcing beam 102. The transformer mounting structure 300 is arranged in plurality, and part of the transformer mounting structures 300 are arranged on one of the mounting beams 101, and the other part of the transformer mounting structures 300 are arranged on the other mounting beam 101. In the embodiment, the transformer mounting structure 300 is arranged in four, and two of the transformer mounting structures 300 are arranged on one of the mounting beams 101, and the other two transformer mounting structures 300 are arranged on the other mounting beam 101.

[0057] With reference to the foregoing Figures 1-6 The first reinforcing beam 102 is arranged in plurality, and the second reinforcing beam 103 is fixedly connected between any two adjacent first reinforcing beams 102, so that the overall structural strength between the two first reinforcing beams 102 can be increased by arranging the second reinforcing beam 103.

[0058] Embodiment two

[0059] The embodiment provides a transformer mounting method, which is implemented by the transformer assembly and is used for mounting the transformer 200 on the transformer beam 100.

[0060] With reference to the foregoing Figure 7 The transformer mounting method comprises the following steps.

[0061] S100: hoisting the transformer 200 below the transformer beam 100.

[0062] The step can be implemented by hoisting equipment.

[0063] S200: rotating the connecting bolt 2 at a preset torque to connect the mounting plate 1 and the lower surface of the connecting segment 1012, and the preset torque is less than the rated torque.

[0064] Optionally, the preset torque is 80% of the rated torque, so that the connecting bolt 2 can be mounted on the mounting plate 1 and the connecting segment 1012, and the connecting bolt 2 is not tightened, and a small amount of displacement between the mounting plate 1 and the connecting segment 1012 is allowed.

[0065] S300: The anti-off seat 4 is fixedly installed on the anti-off pin 3, so that the support surface 41 is located below the mounting plate 1 and has a gap between the mounting plate 1.

[0066] Specifically, after the anti-off seat 4 is sleeved on the anti-off pin 3, the first anti-loosening washer 32 is installed, and then the connecting nut 31 is screwed, so that the connecting nut 31 is threadedly connected with the anti-off pin 3, and the connecting nut 31, the first anti-loosening washer 32, the anti-off seat 4 and the anti-off pin 3 are sequentially abutted, thereby completing the fixed installation between the anti-off seat 4 and the anti-off pin 3.

[0067] S400: The connecting bolt 2 is tightened at a rated torque.

[0068] Through the transformer installation method, when the transformer 200 is installed, the connecting bolt 2 is first screwed but not tightened, and then the anti-off seat 4 is installed so that the support surface 41 is located below the mounting plate 1 and has a gap between the mounting plate 1. At this time, since the connecting bolt 2 is not tightened, the position of the mounting plate 1 can still be adjusted according to the actual situation. After the installation of the anti-off seat 4 is completed, the connecting bolt 2 is tightened to complete the installation of the transformer 200.

[0069] Obviously, the above embodiments of the present application are only examples for clearly illustrating the present application, and are not intended to limit the implementation modes of the present application. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the present application. It is unnecessary and impossible to enumerate all the implementation modes. Any modification, equivalent substitution and improvement made within the spirit and principle of the present application shall be included in the protection scope of the claims of the present application.

Claims

1. Transformer assembly comprising a transformer beam (100) and a transformer (200), characterized in that, The transformer beam (100) comprises a mounting beam (101), the mounting beam (101) comprises a first end (1011), a connecting section (1012) and a second end (1013) connected in sequence, the width of the first end (1011) and the width of the second end (1013) are both smaller than the width of the connecting section (1012); The transformer assembly further comprises a transformer mounting structure (300), the transformer mounting structure (300) comprises: A mounting plate (1) is fixedly arranged on the transformer (200) and can be fixedly connected to the lower surface of the connecting section (1012); A limiting support structure is fixedly arranged on the connecting section (1012) and has a support surface (41), the support surface (41) is located below the mounting plate (1) and has a gap with the mounting plate (1).

2. The transformer assembly of claim 1, wherein, The limiting support structure comprises a anti-dropping pin (3) fixedly arranged on the connecting section (1012) and an anti-dropping cartridge (4) capable of being fixedly sleeved on the anti-dropping pin (3), and the support surface (41) is arranged on the anti-dropping cartridge (4).

3. The transformer assembly of claim 2, wherein, One of the anti-dropping pin (3) and the anti-dropping cartridge (4) is provided with a positioning block (33), and the other is provided with a positioning groove (42), and the positioning block (33) is inserted into the positioning groove (42).

4. The transformer assembly of claim 1, wherein, The mounting plate (1) is connected to the lower surface of the connecting section (1012) by a connecting bolt (2).

5. The transformer assembly of claim 1, wherein, An upper buffer pad (5) is arranged between the mounting plate (1) and the lower surface of the connecting section (1012).

6. The transformer assembly of claim 1, wherein, A stop block (6) is further fixedly arranged on the lower surface of the connecting section (1012), and a side buffer pad (61) is arranged between the side wall of the mounting plate (1) and the stop block (6).

7. The transformer assembly of any of claims 1-6, wherein, The transformer beam (100) comprises two mounting beams (101) and a first reinforcing beam (102) fixedly connected between the two mounting beams (101), and the transformer mounting structure (300) is provided in plurality, part of the transformer mounting structure (300) is mounted on one of the mounting beams (101), and the other part of the transformer mounting structure (300) is mounted on the other mounting beam (101).

8. The transformer assembly of claim 7, wherein, The first reinforcing beam (102) is provided in plurality, and a second reinforcing beam (103) is fixedly connected between any two adjacent first reinforcing beams (102).

9. A method of installing a transformer, characterised in that, The transformer assembly is implemented according to any one of claims 1-8, and is used for mounting the transformer (200) on the transformer beam (100), wherein the mounting plate (1) is connected to the lower surface of the connecting section (1012) by a connecting bolt (2), the limiting support structure comprises an anti-dropping pin (3) fixedly arranged on the connecting section (1012) and an anti-dropping cartridge (4) capable of being fixedly sleeved on the anti-dropping pin (3), and the support surface (41) is arranged on the anti-dropping cartridge (4); The transformer mounting method comprises: S100: hoisting the transformer (200) below the transformer beam (100); S200: twist the connecting bolt (2) with a preset torque to connect the mounting plate (1) with the lower surface of the connecting section (1012), wherein the preset torque is less than the rated torque; S300: fixedly install the anti-withdrawal seat (4) on the anti-withdrawal pin (3) to make the support surface (41) located below the mounting plate (1) and have a gap between the support surface (41) and the mounting plate (1); S400: tighten the connecting bolt (2) with the rated torque.

10. The transformer installation method according to claim 9, characterized in that, The preset torque is 80% of the rated torque.

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