Fixing mechanism for cooling fan of dry-type transformer

Abstract

The utility model discloses a fixing mechanism for a dry type transformer cooling fan, which comprises a cooling fan body, a fixing assembly is arranged outside the cooling fan body, the fixing assembly comprises a bottom frame, the bottom frame is slidably connected with a sliding frame through a guide rod, the top of the bottom frame is fixedly connected with a rack I, and the inner wall of the sliding frame is rotatably connected with a rotating shaft I; the center of the outer wall of the first rotating shaft is fixedly connected with a first bevel gear, the bottom end of the second rotating shaft is fixedly connected with a second bevel gear, the top end of the second rotating shaft is fixedly connected with a hand wheel, the hand wheel is rotated through the fixing assembly to lift the sliding frame, the cooling fan body is placed between the bottom frame and the sliding frame, and then the sliding frame is lowered. By means of the structure, the cooling fan body can be fixed, the situation that the operation space is limited during installation is avoided, the physical strength and time of an operator during installation are saved, and the flexibility of the device is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to fixed mechanism technical field, more specifically, the utility model relates to a kind of fixed mechanism for dry-type transformer cooling fan. BACKGROUND

[0002] Dry-type transformer is a kind of voltage changing device, its iron core and copper wire winding are not soaked in insulating oil, and cooling fan is a kind of device commonly used for cooling dry-type transformer, traditional cooling fan is composed of shell, side mounting bracket and internal cooling equipment, the through hole is set on mounting bracket, bolt is installed, so that cooling fan is fixed below dry-type transformer, cold air is blown to dry-type transformer for cooling, but traditional cooling fan for dry-type transformer is troublesome to install, especially dry-type transformer bottom is generally adjacent to install multiple cooling fans, so that cooling fan installation operation space is limited, it is time-consuming and laborious to install, to a certain extent, the installation efficiency of cooling fan is affected, user is brought inconvenience, in order to solve the deficiency of prior art, we propose a kind of fixed mechanism for dry-type transformer cooling fan. SUMMARY

[0003] In order to overcome the above-mentioned defects of prior art, the utility model provides a kind of fixed mechanism for dry-type transformer cooling fan, to solve the problem that traditional cooling fan for dry-type transformer is troublesome to install, especially dry-type transformer bottom is generally adjacent to install multiple cooling fans, so that cooling fan installation operation space is limited, it is time-consuming and laborious to install, to a certain extent, the installation efficiency of cooling fan is affected.

[0004] To solve the above technical problems, the utility model provides the following technical scheme: a kind of fixed mechanism for dry-type transformer cooling fan, including cooling fan body, the outside of the cooling fan body is provided with fixed assembly, the inside of the fixed assembly is provided with replacement assembly;

[0005] The fixed assembly includes a base frame, the top surface of the base frame is in sliding connection with the body of the cooling fan, the top of the base frame is fixedly connected with a guide rod, the base frame is in sliding connection with a sliding frame through the guide rod, the top of the base frame is fixedly connected with a rack one, the inner wall of the sliding frame is rotatably connected with a rotating shaft one, one end of the rotating shaft one is fixedly connected with a straight gear one, the straight gear one is in engagement with the rack one, the outer wall of the rotating shaft one is fixedly connected with a bevel gear one in the middle, the inner wall of the sliding frame is rotatably connected with a rotating shaft two above the bevel gear one, the bottom end of the rotating shaft two is fixedly connected with a bevel gear two, the bevel gear two is in engagement with the bevel gear one, the top end of the rotating shaft two is fixedly connected with a hand wheel, the outer wall of the rotating shaft two is provided with a limiting hole in the upper side, the top of the sliding frame is in sliding connection with a locking pin on one side of the limiting hole, and the locking pin can be clamped in the limiting hole.

[0006] The base frame and the sliding frame can clamp the body of the cooling fan inside, and the side surfaces of the base frame and the sliding frame are provided with a plurality of baffles to prevent the body of the cooling fan from being separated from the base frame and the sliding frame.

[0007] The rack one and the straight gear one are both two and symmetrically distributed on both sides of the length direction of the rotating shaft one.

[0008] The top surface of the base frame is provided with a plurality of counterbores to facilitate the installation of bolts.

[0009] The replacing assembly includes a rotating shaft three, one end of the rotating shaft three is fixedly connected with a knob, the other end of the rotating shaft three is fixedly connected with a bevel gear three, the outer side of the bevel gear three is engaged with a bevel gear four, one side of the outer surface of the bevel gear four is fixedly connected with a rotating shaft four, the rotating shaft four is rotatably connected to the inner wall of the base frame, the end of the rotating shaft four away from the bevel gear four is fixedly connected with a straight gear two, the inner wall of the base frame is provided with a sliding groove, the base frame is in sliding connection with a rack two through the sliding groove, the rack two is in engagement with the straight gear two, the top surface of the rack two is fixedly connected with a push plate, one end of the rack two is fixedly connected with a spring, and the end of the spring away from the rack two is fixedly connected with the base frame.

[0010] The push plate is attached to the back surface of the body of the cooling fan.

[0011] Compared with the prior art, the utility model has the advantages that:

[0012] The utility model discloses a fixed assembly, including the chassis and sliding frame, install the chassis below dry -type transformer with bolt, rotate hand wheel, and let conical gear no. 2 drive conical gear no. 1 and rotation axis no. 1 rotate to let straight spur gear no. 1 move up and down along rack no. 1, at this moment can lift the sliding frame, put cooling fan body between the chassis and sliding frame, then lower the sliding frame, and the side of chassis and sliding frame is provided with a plurality of baffle, and the cooling fan body is positioned, and the locking pin is clamped in the limiting hole, and the fixing of cooling fan body is completed, using above -mentioned structure, through rotating hand wheel, the lifting of sliding frame is realized, can fix the cooling fan body, avoids the operation space when installing to be limited, saves the physical strength and time of operator when installing, improves the installation efficiency of cooling fan, and the cooling fan of convenient installation of user is improved, and the flexibility of device is improved.

[0013] The utility model discloses a replace assembly, including knob and rotation axis no. 3, when needing to maintain or replace cooling fan body, lift the sliding frame, rotate knob, let conical gear no. 3 drive conical gear no. 4 and rotation axis no. 4 rotate, at this moment straight spur gear no. 2 drive rack no. 2 move forward, and push plate is moved forward through rack no. 2, can push cooling fan body forward, thereby convenient to take out and maintain or replace cooling fan body, after loosening knob, spring will push rack no. 2 move back and restore original position, using above -mentioned structure, through rotating knob, the propulsion of push plate is realized, can conveniently take out cooling fan body, increases the cooling fan maintenance or replacement efficiency, saves the time of dismounting cooling fan, improves the practicality of device. ACCURACY OF DRAWINGS

[0014] Figure 1 It is the whole structure schematic diagram of the utility model;

[0015] Figure 2 It is the fixed assembly structure schematic diagram of the utility model;

[0016] Figure 3 It is the fixed assembly partial cutaway structure schematic diagram of the utility model;

[0017] Figure 4 It is the replace assembly structure schematic diagram of the utility model.

[0018] [REFERENCE SIGNS]

[0019] 1, cooling fan body; 2, fixed assembly; 3, replacement assembly; 21, chassis; 22, guide rod; 23, sliding frame; 24, rack one; 25, rotating shaft one; 26, straight gear one; 27, bevel gear one; 28, rotating shaft two; 29, bevel gear two; 211, hand wheel; 212, limit hole; 213, lock pin; 31, rotating shaft three; 32, knob; 33, bevel gear three; 34, bevel gear four; 35, rotating shaft four; 36, straight gear two; 37, rack two; 38, push plate; 39, spring. DETAILED DESCRIPTION

[0020] To make the technical problems, technical solutions and advantages to be solved by the utility model more clear, specific embodiments will be described in detail below with reference to the drawings.

[0021] As shown in the accompanying Figure 1 to the accompanying Figure 4 The embodiment of the utility model provides a kind of fixing mechanism for dry-type transformer cooling fan, including cooling fan body 1, the outside of cooling fan body 1 is provided with fixed assembly 2, the inside of fixed assembly 2 is provided with replacement assembly 3;

[0022] Fixed assembly 2 includes chassis 21, the top surface of chassis 21 is slidably connected with cooling fan body 1, the top of chassis 21 is fixedly connected with guide rod 22, chassis 21 is slidably connected with sliding frame 23 by guide rod 22, the top of chassis 21 is fixedly connected with rack one 24, the inner wall of sliding frame 23 is rotatably connected with rotating shaft one 25, one end of rotating shaft one 25 is fixedly connected with straight gear one 26, straight gear one 26 is engaged with rack one 24, the outer wall center of rotating shaft one 25 is fixedly connected with bevel gear one 27, the inner wall of sliding frame 23 is rotatably connected with rotating shaft two 28 above bevel gear one 27, the bottom end of rotating shaft two 28 is fixedly connected with bevel gear two 29, bevel gear two 29 is engaged with bevel gear one 27, the top end of rotating shaft two 28 is fixedly connected with hand wheel 211, the outer wall upper side of rotating shaft two 28 is provided with limit hole 212, the top of sliding frame 23 is slidably connected with lock pin 213 on one side of limit hole 212, lock pin 213 can be clamped in limit hole 212.

[0023] Wherein, chassis 21 and sliding frame 23 can be clamped in cooling fan body 1, the side of chassis 21 and sliding frame 23 is provided with a plurality of baffle, to prevent cooling fan body 1 from the separation between chassis 21 and sliding frame 23;

[0024] By rotating the hand wheel 211, the bevel gear two 29 drives the bevel gear one 27 and the rotating shaft one 25 to rotate, so that the spur gear one 26 moves up and down along the rack one 24, at this time, the sliding frame 23 can be lifted, so that the cooling fan body 1 can be placed between the chassis 21 and the sliding frame 23, then the sliding frame 23 is lowered, and the locking pin 213 is clamped in the limiting hole 212, at this time, the fixing of the cooling fan body 1 is completed.

[0025] Wherein, the rack one 24, spur gear one 26 all have two, symmetrically distributed in the rotating shaft one 25 length direction both sides.

[0026] Wherein, the top surface of the chassis 21 is provided with a plurality of counterbores, so as to install bolts;

[0027] By first installing the chassis 21 under the dry-type transformer, even if the distance between the plurality of cooling fan bodies 1 is compact, the installation of the cooling fan body 1 is not affected.

[0028] Wherein, the replacement assembly 3 includes the rotating shaft three 31, the rotating shaft three 31 is rotatably connected to the inner wall of the chassis 21, one end of the rotating shaft three 31 is fixedly connected with the knob 32, the other end of the rotating shaft three 31 is fixedly connected with the bevel gear three 33, the bevel gear three 33 is engaged with the bevel gear four 34 outside, one side of the bevel gear four 34 is fixedly connected with the rotating shaft four 35, the rotating shaft four 35 is rotatably connected to the inner wall of the chassis 21, the end of the rotating shaft four 35 away from the bevel gear four 34 is fixedly connected with the spur gear two 36, the inner wall of the chassis 21 is provided with a sliding groove, the chassis 21 is slidably connected with the rack two 37 through the sliding groove, the rack two 37 is engaged with the spur gear two 36, the top surface of the rack two 37 is fixedly connected with the push plate 38, one end of the rack two 37 is fixedly connected with the spring 39, and the end of the spring 39 away from the rack two 37 is fixedly connected with the chassis 21;

[0029] By rotating the knob 32, the bevel gear three 33 drives the bevel gear four 34 and the rotating shaft four 35 to rotate, at this time, the spur gear two 36 drives the rack two 37 to move forward, and after the knob 32 is loosened, the spring 39 drives the rack two 37 to move backward and restore to the original position.

[0030] Wherein, the push plate 38 is attached to the back of the cooling fan body 1;

[0031] By driving the push plate 38 to move forward through the rack two 37, the cooling fan body 1 can be pushed out, so that the cooling fan body 1 can be taken out and repaired or replaced.

[0032] The working process of the utility model is as follows:

[0033] Firstly, the chassis 21 is bolted below the dry-type transformer, the hand wheel 211 is rotated, the bevel gear two 29 drives the bevel gear one 27 and the rotating shaft one 25 to rotate, so that the spur gear one 26 moves up and down along the rack one 24, at this time, the sliding frame 23 can be lifted, the cooling fan body 1 is placed between the chassis 21 and the sliding frame 23, then the sliding frame 23 is lowered, the side of the chassis 21 and the sliding frame 23 is provided with a plurality of baffles, the cooling fan body 1 is limited, the locking pin 213 is clamped in the limiting hole 212, the fixing of the cooling fan body 1 is completed, when the cooling fan body 1 needs to be maintained or replaced, the sliding frame 23 is lifted, the knob 32 is rotated, the bevel gear three 33 drives the bevel gear four 34 and the rotating shaft four 35 to rotate, at this time, the spur gear two 36 drives the rack two 37 to move forward, and the push plate 38 is moved forward through the rack two 37, the cooling fan body 1 can be pushed out, so that the cooling fan body 1 is conveniently taken out and maintained or replaced, after the knob 32 is loosened, the spring 39 moves the rack two 37 back and restores to the original position.

[0034] Finally, it should be pointed out that: first, in the description of the present application, it should be pointed out that, unless otherwise specified and limited, the terms "installation", "connection", "connection" should be understood broadly, which can be mechanical connection or electrical connection, or the communication between two elements, or direct connection, "up", "down", "left", "right" and the like are only used to indicate the relative positional relationship, when the absolute position of the described object changes, the relative positional relationship may change;

[0035] Secondly: the utility model discloses the embodiment in the drawing, only relate to the structure involved in the embodiment of the present disclosure, other structures can refer to the usual design, under the condition of no conflict, the same embodiment and different embodiments of the utility model can be combined with each other;

[0036] Finally: the above only for the preferred embodiment of the utility model, and does not limit the utility model, any modification, equivalent replacement, improvement etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A fixing mechanism for a cooling fan of a dry-type transformer, comprising a cooling fan body (1), characterized in that, The cooling fan body (1) is provided with a fixing component (2) on the outside, and a replacement component (3) is provided inside the fixing component (2); The fixing assembly (2) includes a base frame (21), the top surface of which is slidably connected to the cooling fan body (1). A guide rod (22) is fixedly connected to the top of the base frame (21). A sliding frame (23) is slidably connected to the base frame (21) via the guide rod (22). A rack (24) is fixedly connected to the top of the base frame (21). A rotating shaft (25) is rotatably connected to the inner wall of the sliding frame (23). A spur gear (26) is fixedly connected to one end of the rotating shaft (25). The spur gear (26) meshes with the rack (24). A fixed connection is made to the center of the outer wall of the rotating shaft (25). There is a bevel gear 1 (27), and a rotating shaft 2 (28) is rotatably connected to the inner wall of the sliding frame (23) above the bevel gear 1 (27). The bottom end of the rotating shaft 2 (28) is fixedly connected to a bevel gear 2 (29), which meshes with the bevel gear 1 (27). A handwheel (211) is fixedly connected to the top end of the rotating shaft 2 (28). A limiting hole (212) is opened on the upper side of the outer wall of the rotating shaft 2 (28). A locking pin (213) is slidably connected to the top of the sliding frame (23) on one side of the limiting hole (212). The locking pin (213) can be locked in the limiting hole (212).

2. The fixing mechanism for a dry-type transformer cooling fan according to claim 1, characterized in that, The base frame (21) and sliding frame (23) can clamp the cooling fan body (1) inside. The sides of the base frame (21) and sliding frame (23) are provided with multiple baffles to prevent the cooling fan body (1) from detaching from the base frame (21) and sliding frame (23).

3. The fixing mechanism for a dry-type transformer cooling fan according to claim 1, characterized in that, There are two racks (24) and two spur gears (26), which are symmetrically distributed on both sides of the length direction of the rotating shaft (25).

4. The fixing mechanism for a dry-type transformer cooling fan according to claim 1, characterized in that, The top surface of the base frame (21) has multiple countersunk holes for installing bolts.

5. The fixing mechanism for a dry-type transformer cooling fan according to claim 1, characterized in that, The replacement component (3) includes a rotating shaft three (31), which is rotatably connected to the inner wall of the base frame (21). A knob (32) is fixedly connected to one end of the rotating shaft three (31), and a bevel gear three (33) is fixedly connected to the other end of the rotating shaft three (31). A bevel gear four (34) meshes with the outer edge of the bevel gear three (33). A rotating shaft four (35) is fixedly connected to one outer surface of the bevel gear four (34), and the rotating shaft four (35) is rotatably connected to the inner wall of the base frame (21). The end of the rotating shaft four (35) away from the bevel gear four (34) is fixedly connected to the spur gear two (36). The inner wall of the base frame (21) is provided with a sliding groove. The base frame (21) is slidably connected to the rack two (37) through the sliding groove. The rack two (37) meshes with the spur gear two (36). The top surface of the rack two (37) is fixedly connected to the push plate (38). One end of the rack two (37) is fixedly connected to the spring (39). The end of the spring (39) away from the rack two (37) is fixedly connected to the base frame (21).

6. The fixing mechanism for a dry-type transformer cooling fan according to claim 5, characterized in that, The push plate (38) is attached to the back of the cooling fan body (1).

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