CN204079129U - Coiling dolly - Google Patents

Abstract

The winding trolley includes a base, a handle is installed on the base, a pair of universal wheels and a pair of large wheels are respectively installed on the front and rear sides of the lower end of the base, a first rotating shaft is installed between the pair of large wheels, and a first gear is installed on the first rotating shaft. A first supporting frame is installed on the base, a second rotating shaft is installed on the first supporting frame, a second gear is fixedly installed on the second rotating shaft, a chain is installed on the first gear and the second gear, and a winding roller is also fixedly installed on the second rotating shaft , the test line is wound on the winding roller, the second support frame is installed on the base, the slide rail and the lead screw are installed on the second support frame, and one end of the lead screw is connected to the motor. The utility model has the advantages that: it pushes the handle by manpower, the big wheel axle rotates during the traveling process, and drives the winding roller to rotate forward and reverse through the gear and the chain, so as to achieve the purpose of automatic winding and unwinding. In addition, during the winding process, the motor drives the connecting block to move repeatedly on the slide rail through the screw nut mechanism, so that the test line is wound evenly and neatly on the winding roller.

Description

Winding trolley

technical field

The utility model relates to a winding and unwinding device, in particular to a winding trolley.

Background technique

Grounding impedance test is an important test item to check whether the grounding device is in good condition. When testing the grounding impedance, it is necessary to place a voltage line and a current line at a long distance outside the substation. Sexuality needs to pass a large current, which requires a thicker copper test line. Taking a 2000-meter wire reel as an example, the weight is more than 6 kg. It is extremely laborious to rely solely on manpower to carry the wire reel and move the wire reel. Moreover, if the position and direction of the test line are not controlled when the line is taken up, a large number of test lines will be concentrated on a certain place of the winding roller, which is neither neat nor tight, and is easy to knot when unwinding. The traditional take-up method is to control the direction manually, and the take-up efficiency is low.

Utility model content

In order to solve the above problems, the purpose of this utility model is to provide a winding trolley, which can realize the automatic retraction and release of the test line, and can make the winding of the test line even and neat when the line is taken up.

In order to achieve the above object, the utility model is realized through the following technical solutions: the winding trolley includes a base, a handle is installed on the base, a pair of universal wheels and a pair of large wheels are respectively installed on the front and rear sides of the lower end of the base, and a pair of large wheels is installed between the pair of large wheels. The first rotating shaft is installed, the first gear is installed on the first rotating shaft, the first supporting frame is installed on the base, the second rotating shaft is installed on the first supporting frame, the second gear is fixedly installed on the second rotating shaft, the first gear and the second gear are installed With the installation of the chain, the winding roller is fixedly installed on the second rotating shaft, the test line is wound on the winding roller, the second support frame is installed on the base, the slide rail and the lead screw are installed on the second support frame, and one end of the lead screw is connected to the motor. The motor provides power for the lead screw, the slide rail is equipped with a slider, the connecting seat is installed on the slider, the nut is installed at the lower end of the connecting seat, the nut cooperates with the lead screw, the connecting block is installed on the connecting block, and a through hole is opened on the connecting block to test the line. The free end passes through the through hole.

In order to further realize the purpose of the utility model, the following technical solutions can also be adopted: a third support frame is installed on the base, a third rotating shaft is installed on the third supporting frame, a third gear is fixedly installed on the third rotating shaft, and the third gear Cooperate with the chain; a guide roller is installed on the third shaft, and the free end of the test line bypasses the lower end of the guide roller and touches the guide roller; a clutch is installed on the first shaft, and the clutch cooperates with the first gear, and the pressure plate of the clutch Connect one end of the connecting rod, the other end of the connecting rod is hinged to the lower end of the joystick, the lower part of the joystick is hinged to the base, and the upper end of the joystick is located on one side of the handle; the diameter of the first gear is the same as that of the second gear, and the winding roller Same diameter as the big wheel.

The utility model has the advantages that: in the utility model, the handle is pushed by manpower, the big wheel axle rotates during the traveling process, and the winding roller is driven to rotate positively and negatively by the gear and the chain, so as to achieve the purpose of automatic winding and unwinding. In addition, during the winding process, the motor drives the connecting block to move repeatedly on the slide rail through the screw nut mechanism, so that the test line is evenly and neatly wound on the winding roller. The utility model also has the advantages of simple and compact structure, low manufacturing cost and easy use.

Description of drawings

Fig. 1 is a schematic diagram of the structure of the utility model; Fig. 2 is a view from the direction A of Fig. 1 .

Reference signs: 1 base 2 handle 3 universal wheel 4 large wheel 5 first shaft 6 first gear 7 first support frame 8 third support frame 9 second shaft 10 second gear 11 chain 12 winding roller 13 test line 14 second support frame 15 slide rail 16 lead screw 17 slider 18 connecting seat 19 nut 20 connecting block 21 through hole 22 motor 23 third rotating shaft 24 third gear 25 clutch 26 connecting rod 27 joystick 28 guide roller.

Detailed ways

The winding trolley, as shown in FIG. 1 , includes a base 1 on which a handle 2 is installed. A pair of universal wheels 3 and a pair of bull wheels 4 are respectively installed on the front and rear sides of the lower end of the base 1, and the first rotating shaft 5 is installed between the pair of bull wheels 4, and the first gear 6 is installed on the first rotating shaft 5. A first support frame 7 is installed on the base 1 , a second rotating shaft 9 is installed on the first support frame 7 , a second gear 10 is fixedly installed on the second rotating shaft 9 , and a chain 11 is installed on the first gear 6 and the second gear 10 . Chain and gear also can be provided with a set respectively on the left and right sides of base 1, to guarantee accurate transmission. A winding roller 12 is also fixedly installed on the second rotating shaft 9 , and a test line 13 is wound on the winding roller 12 . The second support frame 14 is installed on the base 1, and the slide rail 15 and the leading screw 16 are installed on the second support frame 14. One end of the lead screw 16 is connected to the motor 22, and the motor 22 provides power for the lead screw 16. Block 17, connecting seat 18 is installed on the slide block 17, and nut 19 is installed at the lower end of connecting seat 18, and nut 19 cooperates with leading screw 16. A connection block 20 is installed on the connection base 18 , and a through hole 21 is opened on the connection block 20 , and the free end of the test line 13 passes through the through hole 21 . This structure pushes the handle 2 by manpower, the first rotating shaft 5 on the big wheel 4 rotates during the traveling process, and drives the winding roller 12 to rotate forward and reverse through the first gear 6, the second gear 10 and the chain 11, so as to achieve automatic retraction. Put the purpose of test line 13. In addition, during the winding process, the motor 22 drives the connecting block 20 to move repeatedly on the slide rail 15 through the lead screw 16 and the nut 19 , so that the test line 13 is evenly and neatly wound on the winding roller 12 .

When unwinding, pull the handle 2 to make the big wheel 4 rotate forward, drive the gear chain to make the winding roller 12 rotate forward, turn on the motor 22 to make the motor 22 rotate forward and reverse repeatedly, and make the connecting block 20 repeatedly move on the slide rail 15 , testing line 13 realizes setting out with the movement of bull wheel 4. When winding up, push the handle 2 to make the big wheel 4 reverse, through the transmission of the gear chain, the winding roller 12 is reversed, and the motor 22 is turned on to make the motor 22 rotate forward and reverse repeatedly, so that the connecting block 20 moves repeatedly on the slide rail 15 , so that the test line 13 is evenly wound on the winding roller 12, and the test line 13 moves with the bull wheel 4 to realize winding.

In order to make the test line 13 wound tightly when taking up the line, a third support frame 8 is installed on the base 1, a third rotating shaft 23 is installed on the third supporting frame 8, and a third gear 24 is fixedly installed on the third rotating shaft 23. Three gears 24 cooperate with chain 11; Guide roller 28 is installed on the third rotating shaft 23, and the free end of test line 13 walks around guide roller 28 lower ends and touches with guide roller 28. This structure makes the test line 13 taut when it is taken up, so as to achieve the purpose of making the test line 13 tightly wound.

In order to facilitate the transportation when the utility model is not working, a clutch 25 is installed on the first rotating shaft 5, and the clutch 25 cooperates with the first gear 6. The pressing plate of the clutch 25 is connected to one end of the connecting rod 26, and the other end of the connecting rod 26 The lower end of the joystick 27 is hinged, the bottom of the joystick 27 is hinged with the base 1, and the upper end of the joystick 27 is positioned at the handle 2 side. When this structure can make the bull wheel 4 rotate, the first gear 6 idles, thereby avoiding the winding roller 12 from rotating with the bull wheel 4, and preventing the test line 13 from unwinding when carrying the utility model.

In order to make the rotating speed of the bull wheel 4 equal to the rotating speed of the winding roller 12, the diameter of the first gear 6 and the second gear 10 is the same, and the diameter of the winding roller 12 is the same as that of the bull wheel 4. This structure makes the moving speed of the bull wheel 4 consistent with the retracting speed of the test line 13, which is convenient for taking care of the situation of the test line 13 while retracting and unwinding the line, and making appropriate adjustments and removing obstacles at any time to protect the test line 13.

The technical solution of the utility model is not limited within the scope of the embodiments described in the utility model. The technical contents not described in detail in the utility model are all known technologies.

Claims (4)

1. coiling dolly, it is characterized in that: comprise base (1), the upper mounting knob (2) of base (1), before and after base (1) lower end, both sides install a pair cardan wheel (3) and a pair bull wheel (4) respectively, between a pair bull wheel (4), the first rotating shaft (5) is installed, upper installation first gear (6) of first rotating shaft (5), upper installation first bracing frame (7) of base (1), upper installation second rotating shaft (9) of first bracing frame (7), upper fixed installation second gear (10) of second rotating shaft (9), first gear (6) installs chain (11) with the second gear (10) coordinates, second rotating shaft (9) also fixedly mounts winding roller (12), winding roller (12) is wound around testing wire (13), upper installation second bracing frame (14) of base (1), second bracing frame (14) is installed slide rail (15) and leading screw (16), one end of leading screw (16) connects motor (22), motor (22) provides power for leading screw (16), slide rail (15) is equipped with slide block (17), slide block (17) is installed Connection Block (18), Connection Block (18) lower end mounting nuts (19), nut (19) coordinates with leading screw (16), Connection Block (18) is installed contiguous block (20), contiguous block (20) is offered through hole (21), the free end of testing wire (13) passes through hole (21).

2. coiling dolly according to claim 1, it is characterized in that: the upper installation the 3rd bracing frame (8) of described base (1), the upper installation the 3rd rotating shaft (23) of 3rd bracing frame (8), the upper fixed installation the 3rd gear (24) of 3rd rotating shaft (23), the 3rd gear (24) coordinates with chain (11); Guiding roller (28) is installed in 3rd rotating shaft (23), and the free end of testing wire (13) is walked around guiding roller (28) lower end and is touched with guiding roller (28).

3. coiling dolly according to claim 1 and 2, it is characterized in that: power-transfer clutch (25) is installed in described the first rotating shaft (5), power-transfer clutch (25) coordinates with the first gear (6), the pressing plate of power-transfer clutch (25) connects one end of pipe link (26), the lower end of the hinged joystick of the other end (27) of pipe link (26), bottom and the base (1) of joystick (27) are hinged, and the upper end of joystick (27) is positioned at handle (2) side.

4. coiling dolly according to claim 1, is characterized in that: described the first gear (6) is identical with the second gear (10) diameter, and winding roller (12) is identical with bull wheel (4) diameter.