CN210760868U - Circuit breaker transfer trolley - Google Patents

Abstract

The utility model discloses a dolly is transported to circuit breaker aims at providing a convenient operation's dolly is transported to circuit breaker. The device comprises a frame, a supporting plate and two aligning mechanisms, wherein the lower end of the frame is provided with a travelling wheel, the upper end of the frame is provided with a bedplate, the supporting plate is supported above the bedplate through four sets of supporting devices, and the aligning mechanisms are symmetrically arranged on the supporting plate; the supporting device comprises a shell fixedly arranged on the bedplate, a worm horizontally and rotatably arranged on the shell, a worm wheel rotatably arranged in the shell and meshed with the worm, a lead screw vertically arranged on the worm wheel in a penetrating manner and two ends of the lead screw extend out of the shell, a supporting seat rotatably arranged at the upper end of the lead screw, and a rocking handle fixedly arranged at one end of the worm and positioned outside the shell; a screw hole for the screw rod to penetrate through and be meshed with the screw rod is formed in the center of the worm wheel; the supporting seat is fixedly connected with the lower end of the supporting plate. The utility model is suitable for a dismouting of multiple circuit breaker is used.

Description

Circuit breaker transfer trolley

Technical Field

The utility model belongs to the technical field of circuit breaker maintenance of equipment technique and specifically relates to a dolly is transported to circuit breaker is related to.

Background

The circuit breaker is a switching device which can close, bear and break the current under the condition of a normal loop, and can close, bear and break the current under the condition of an abnormal loop within a specified time, and the circuit breaker is divided into a high-voltage circuit breaker and a low-voltage circuit breaker according to the application range of the circuit breaker, and the circuit breaker is generally called a high-voltage electrical appliance with the voltage of more than 3 kV; the circuit breaker can be used for distributing electric energy, starting an asynchronous motor infrequently, protecting a power supply circuit, the motor and the like, automatically cutting off a circuit when faults such as serious overload, short circuit, undervoltage and the like occur, has the function equivalent to the combination of a fuse type switch, an over-under-heat relay and the like, does not need to change parts after breaking fault current, and is widely applied to the field of power converters at present.

The circuit breaker expert in the transformer substation generally places in the circuit breaker cabinet, when needs overhaul the circuit breaker, takes out the circuit breaker usually, puts on transporting the dolly, utilizes to transport the dolly and transports it out of transformer substation, in the transportation, has following several problems:

1) the operation of alignment, stopping and the like of the transfer trolley and the circuit breaker cabinet is difficult, the alignment inspection is difficult, if the alignment is not accurate, the operation quality is affected, the circuit breaker falls off, and personnel and equipment are injured;

2) the height of transporting the dolly highly mismatches with the circuit breaker cabinet, increases and transports the difficulty, transports the easy deformation of elevating system in dolly area, the jam, and the adjustment is inconvenient, extravagant a large amount of operating time and manpower, even can't continue the operation.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a purpose aims at overcoming the not enough of prior art existence, provides a dolly is transported to convenient circuit breaker of lift operation adjustment.

In order to solve the technical problem, the utility model discloses a realize through following technical scheme:

a circuit breaker transfer trolley comprises a trolley frame, a supporting plate and two aligning mechanisms, wherein the lower end of the trolley frame is provided with a travelling wheel, the upper end of the trolley frame is provided with a bedplate, the supporting plate is supported above the bedplate through four sets of supporting devices, and the aligning mechanisms are symmetrically arranged on the supporting plate; the supporting device comprises a shell fixedly arranged on the bedplate, a worm horizontally and rotatably arranged on the shell, a worm wheel rotatably arranged in the shell and meshed with the worm, a lead screw vertically arranged on the worm wheel in a penetrating manner and two ends of the lead screw extend out of the shell, a supporting seat rotatably arranged at the upper end of the lead screw, and a rocking handle fixedly arranged at one end of the worm and positioned outside the shell; a screw hole for the screw rod to penetrate through and be meshed with the screw rod is formed in the center of the worm wheel; the supporting seat is fixedly connected with the lower end of the supporting plate.

Preferably, the alignment mechanism comprises a swing rod horizontally penetrating the support plate, a rod part hinged with the support plate and provided with a hook body at one end, an operating handle arranged at the other end of the swing rod, a tension spring with two ends respectively connected with the swing rod and the support plate, and a locking hook rotatably arranged on the support plate and capable of hooking the operating handle; the corresponding position of the supporting plate is provided with a strip-shaped hole for the swing rod and the operating handle to pass through.

Preferably, the road wheels are universal wheels with locking pedals.

Preferably, the support seat is mounted at the upper end of the screw rod through a bearing.

Preferably, the support seat is connected with the support plate by a bolt.

Preferably, the operating handle is connected to the worm by a pin.

Compared with the prior art, the utility model has the advantages of as follows:

the utility model has simple structure, scientific design and convenient use, can realize the fine adjustment of the direction of the transfer trolley through the two universal wheels at the front part, and can adjust the height of the supporting plate through the supporting devices at the four corners, realize horizontal adjustment and increase the stability; by means of the matching of the rocking handle, the lead screw and the lead screw nut, the purposes of labor saving and convenience can be achieved, meanwhile, self locking can be achieved after adjustment is completed, and equipment damage caused by reverse rotation of the supporting device is avoided.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is an enlarged view of a portion a in fig. 1.

Fig. 3 is a schematic view of the structure of the support device.

Fig. 4 is a schematic structural view of the alignment mechanism, in which some components are omitted.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without any creative effort belong to the protection scope of the present invention. In the following description, for the sake of clarity of illustrating the structure and operation of the present invention, reference will be made to the accompanying drawings by means of directional terms, but the terms "front", "rear", "left", "right", "up", "down", etc. should be construed as convenient terms and not as limitative terms.

The circuit breaker transfer trolley shown in fig. 1-4 comprises a frame 3, a support plate 5 and two aligning mechanisms 6, wherein the lower end of the frame is provided with a travelling wheel 1, the upper end of the frame is provided with a bedplate 2, the support plate 5 is supported above the bedplate 2 through four sets of supporting devices 4, and the aligning mechanisms 6 are symmetrically arranged on the support plate 5; the supporting device 4 comprises a shell 41 fixedly arranged on the bedplate 2, a worm 42 horizontally and rotatably arranged on the shell 41, a worm wheel 43 rotatably arranged in the shell 41 and meshed with the worm 42, a screw rod 44 vertically arranged on the worm wheel 43 in a penetrating way and with two ends extending out of the shell 41, a supporting seat 45 rotatably arranged at the upper end of the screw rod 44, and a rocking handle 46 fixedly arranged at one end of the worm 42 and positioned outside the shell 41; a screw hole for the screw rod 44 to pass through and be meshed with the screw rod 44 is arranged in the center of the worm wheel 43; the supporting seat 45 is fixedly connected with the lower end of the supporting plate 5.

In this embodiment, the aligning mechanism 6 includes a swing rod 62 horizontally penetrating the supporting plate 5, having a rod portion hinged to the supporting plate 5 and a hook 61 at one end, an operating handle 63 disposed at the other end of the swing rod 62, a tension spring 64 having two ends respectively connected to the swing rod 62 and the supporting plate 5, and a locking hook 65 rotatably disposed on the supporting plate 5 and rotatably hooking the operating handle 63, wherein the locking hook of this embodiment is C-shaped, and obviously, other applicable shapes, such as question mark shapes, can be adopted; the corresponding position of the supporting plate 5 is provided with a strip-shaped hole 51 for the swing rod 62 and the operating handle 63 to pass through. The alignment mechanism is simple and reliable to operate, and obviously, the alignment mechanism can also adopt a structural form commonly used by the existing transfer trolley.

As an optimal technical scheme, the walking wheels 1 adopt universal wheels with locking pedals, so that locking and stopping at any position can be realized, and the use convenience is improved.

In this embodiment, a through hole (not shown in the figure) for the screw rod 44 to pass through is provided on the bedplate 2; the supporting seat 45 is mounted on the upper end of the screw rod 44 through a bearing, obviously, a bearing bush and the like can also be adopted. The support seat 45 is connected to the support plate 5 by means of bolts, obviously also by riveting or the like. Preferably, said operating handle 63 is connected to the worm 42 by means of a pin, obviously also by welding or screwing, etc.

When the breaker is disassembled and assembled, the transfer trolley is pushed to the disassembling and assembling position of the breaker, then the height and the levelness of the supporting plate are adjusted through the four sets of supporting devices, when the hook body of the aligning mechanism corresponds to a hole position on corresponding equipment (equipment for disassembling and assembling the breaker), the transfer trolley is pushed forwards to enable the hook body to enter the hole position on the corresponding equipment, and the hook body hooks the hole position on the corresponding equipment under the action of the tension spring, so that the breaker can be disassembled and assembled; after the circuit breaker dismouting is accomplished, stir the operating handle and make the pendulum rod swing to use the locking hook to catch on the operating handle and make the pendulum rod fixed, the coupler body breaks away from with the hole site on the corresponding equipment this moment, can remove the transport dolly this moment, the transport dolly overturns the locking hook after shifting out and makes it break away from with the operating handle, the pendulum rod resets under the extension spring effect, can carry out next circuit breaker dismouting work.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (9)

1. A circuit breaker transfer trolley comprises a trolley frame, a supporting plate and two aligning mechanisms, wherein the lower end of the trolley frame is provided with a travelling wheel, the upper end of the trolley frame is provided with a bedplate, the supporting plate is supported above the bedplate through four sets of supporting devices, and the aligning mechanisms are symmetrically arranged on the supporting plate; the method is characterized in that: the supporting device comprises a shell fixedly arranged on the bedplate, a worm horizontally and rotatably arranged on the shell, a worm wheel rotatably arranged in the shell and meshed with the worm, a lead screw vertically arranged on the worm wheel in a penetrating manner and two ends of the lead screw extend out of the shell, a supporting seat rotatably arranged at the upper end of the lead screw, and a rocking handle fixedly arranged at one end of the worm and positioned outside the shell; a screw hole for the screw rod to penetrate through and be meshed with the screw rod is formed in the center of the worm wheel; the supporting seat is fixedly connected with the lower end of the supporting plate.

2. The circuit breaker transfer trolley of claim 1, wherein: the alignment mechanism comprises a swing rod, an operating handle, a tension spring and a locking hook, wherein the swing rod is horizontally arranged on the supporting plate in a penetrating mode, the rod part of the swing rod is hinged to the supporting plate, one end of the swing rod is provided with a hook body, the operating handle is arranged at the other end of the swing rod, two ends of the tension spring are respectively connected with the swing rod and the supporting plate, and the locking hook is rotatably arranged on the supporting plate and; the corresponding position of the supporting plate is provided with a strip-shaped hole for the swing rod and the operating handle to pass through.

3. The circuit breaker transfer trolley according to claim 1 or 2, wherein: the walking wheel adopts the universal wheel that has the locking footboard.

4. The circuit breaker transfer trolley according to claim 1 or 2, wherein: the supporting seat is installed at the upper end of the screw rod through a bearing.

5. The circuit breaker transfer trolley of claim 3, wherein: the supporting seat is installed at the upper end of the screw rod through a bearing.

6. The circuit breaker transfer trolley according to claim 1 or 2, wherein: the supporting seat is connected with the supporting plate through a bolt.

7. The circuit breaker transfer trolley of claim 3, wherein: the supporting seat is connected with the supporting plate through a bolt.

8. The circuit breaker transfer trolley according to claim 1 or 2, wherein: the operating handle is connected with the worm through a pin.

9. The circuit breaker transfer trolley of claim 3, wherein: the operating handle is connected with the worm through a pin.

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