CN205168564U - In put automatic transportation instrument of cabinet circuit breaker - Google Patents

Abstract

A new type of automatic transfer tool for circuit breakers in central cabinets, which is divided into the overall frame, circuit breaker pallet, electro-hydraulic mechanism, electrical equipment and other parts. The bottom of the frame of the transfer tool is equipped with supporting wheels, circuit breaker pallet, electro-hydraulic mechanism, The electrical equipment is respectively installed on the frame of the transfer tool, the width of the circuit breaker support plate is adjustable, and the circuit breaker support plate can move up and down in the frame driven by the electro-hydraulic mechanism. The utility model is suitable for central cabinets and circuit breakers of different widths. The circuit breaker support plate can move up and down, and the operator does not need to lift the circuit breaker by manpower, which effectively reduces the labor intensity of the operator. At the same time, the circuit breaker can be lowered to the lowest point before moving, which avoids personal and equipment injuries caused by operators' mistakes in lifting and transferring the circuit breaker, and ensures equipment and personal safety.

Description

Central cabinet circuit breaker automatic transfer tool

technical field

The utility model belongs to the technical field of electric appliances, and relates to an electric transfer tool for a circuit breaker of a switch cabinet, in particular to an automatic transfer tool for a center-mounted circuit breaker of a switch cabinet.

Background technique

At present, traditional circuit breaker transfer vehicles are used in conjunction with central cabinets in substations. The traditional circuit breaker transfer vehicle has various height and width specifications, which is poor in versatility. The transfer vehicle with various specifications not only occupies the site space, but also costs a lot. And when in use, it is necessary to manually adjust the four nylon handwheels under the support plate to make the plane of the support plate equal to the plane of the circuit breaker guide rail on the switch cabinet. This method not only slows down the adjustment speed, but also makes it difficult to maintain the height of the four corners of the support plate. Consistent, it is easy to cause the deformation of the support bracket of the transfer vehicle.

Traditional transfer vehicles are assembled by bending metal plates, the overall strength is insufficient, and because of the high supporting plate, the center of gravity of the circuit breaker is also high. During the transfer process, if the ground is uneven or there are debris on the ground, It will cause the circuit breaker to lean forward and fall due to inertia, causing serious equipment damage and even endangering personal safety. The height of the supporting pallet of the traditional transfer vehicle is fixed, and the operator must rely on manpower to lift the circuit breaker when replacing or repairing the circuit breaker. Since the circuit breaker is heavy and small in size, it is easy to cause problems due to lack of coordination when multiple people cooperate to lift the circuit breaker. The equipment is damaged or endangers personal safety, and the labor intensity is relatively high.

Contents of the invention

The utility model provides a new type of automatic transfer tool for central cabinet circuit breakers, which is suitable for central cabinets and circuit breakers of different widths, has strong versatility, reduces the number of transfer vehicles in substations, reduces occupied space, facilitates management and maintenance, and saves manpower , so that the operator does not have to rely on manpower to lift the circuit breaker, avoiding personal and equipment injuries caused by the operator's mistake in lifting the circuit breaker, and effectively reducing the labor intensity of the operator.

In order to achieve the above object, the technical scheme adopted by the utility model is as follows.

An automatic transfer tool for a circuit breaker in a central cabinet, including four parts: a frame, a circuit breaker pallet, an electro-hydraulic mechanism and electrical equipment. The supporting plate is slidably connected to the frame, a width-adjustable bracket is installed on the circuit breaker supporting plate, an electro-hydraulic mechanism is installed on the frame, and an electrical equipment box is installed at the bottom of the transfer tool.

According to the automatic transfer tool for the circuit breaker of the central cabinet, one support wheel is installed on both sides of the front of the bottom of the frame, one lockable guide wheel is installed on both sides of the rear of the bottom, and two sides of the rear of the frame are respectively equipped with a handle.

According to the automatic transfer tool for the circuit breaker of the central cabinet, the bottom of the frame is connected to the lockable guide wheel through the guide wheel bracket, and the electrical equipment box bracket between the two lockable guide wheels is equipped with an electrical equipment box .

According to the automatic transfer tool for the circuit breaker of the central cabinet, the sliding wheel fixing bracket on the circuit breaker pallet is installed in the sliding C-shaped groove of the pallet through the sliding wheels on both sides, and the brackets are installed on each other through the sliding shaft. Two parallel sliding wheels are fixed on the bracket, and a width adjustment mechanism is installed on the bracket.

According to the automatic transfer tool for the circuit breaker in the central cabinet, the two racks of the width adjustment mechanism are respectively connected to the brackets on both sides, the two racks are meshed with the rack gear in the middle, and the rack gear is connected to The worm gear meshes with the worm.

According to the automatic transfer tool for the circuit breaker in the central cabinet, the rack gear and the worm gear are of an integrated structure, the back of the rack has a circular groove, and the rack positioning beads are installed on the back of the rack to snap into the groove. The worm is connected with the width adjusting knob.

According to the automatic transfer tool for the circuit breaker of the central cabinet, the front section of the bracket is equipped with a positioning pin docked with the groove at the front of the central cabinet, and a bayonet pin is also installed on the bracket, and the bayonet pin is hinged on the bayonet pin and fixed On the point, the bayonet handle on the bayonet is connected with the bayonet return spring.

According to the automatic transfer tool for the circuit breaker in the central cabinet, the electro-hydraulic mechanism includes a hydraulic cylinder, an electro-hydraulic oil pump, and a power supply. The plate chain anchorage point, straddles the chain gear, and the other end is attached to the frame chain anchorage point of the frame.

According to the automatic transfer tool for the circuit breaker in the central cabinet, a storage battery, a controller and an electric hydraulic oil pump are installed in the electrical equipment box, the electric hydraulic oil pump motor and the relay are respectively connected to the controller, and the electric equipment box operation panel is equipped with a power indicator, Key switch, up button, down button, one side of the electrical equipment box is also equipped with a charging interface.

According to the automatic transfer tool for the circuit breaker in the central cabinet, the charging interface is connected to the storage battery through a wire, an insurance is connected in series on the positive wire, and an emergency stop button is installed in the middle of the frame.

This transfer tool has a circuit breaker pallet for circuit breakers, which is suitable for central cabinets and circuit breakers of different widths, and can be lifted and lowered freely, and the lifting height can be adjusted freely. It is suitable for central cabinets with different positions and heights of circuit breakers. It has strong versatility. Reduce the number of transfer vehicles in the substation, reduce the occupied space, and facilitate management and maintenance. The lifting mechanism is electrically controlled, which greatly saves manpower, so that operators do not have to rely on manpower to lift the circuit breaker, avoiding personal and equipment injuries caused by operators' mistakes in lifting the circuit breaker, and originally at least two people can carry the circuit breaker. The transfer tool can be easily operated by one person, effectively reducing the labor intensity of the operator.

The entire transfer tool is welded by high-strength materials such as square steel pipes and round steel pipes. Compared with the structure assembled after bending the metal plate of the traditional transfer vehicle, it greatly improves the overall strength of the transfer tool, is not easy to deform, and ensures safety during use. sex. The transfer tool is relatively heavy overall, and the heaviest part is the battery, which is placed at the bottom of the transfer vehicle, which makes the transfer tool very stable as a whole, and balances the weight of the circuit breaker during use, making the whole stable and not easy to use. Dumping ensures reliability and safety in use. The top of the transfer tool is equipped with a circuit breaker hook, which can lift the circuit breaker and suspend it, which is convenient for the staff to overhaul.

Description of drawings

Fig. 1 is a right side view of the utility model.

Fig. 2 is the front view of the utility model.

Fig. 3 is a left view of the utility model.

Fig. 4 is a top view of the utility model.

Fig. 5 is a sectional view of the utility model electrical equipment box.

In the attached picture:

1. Sliding C-shaped groove of the pallet 2. Handle 3. Circuit breaker pallet

4. Charging interface 5. Lockable guide wheel 6. Guide wheel bracket

7. Circuit breaker hook bracket 8. C-shaped groove of hydraulic ejector rod 9. Chain gear

10. Hydraulic jack 11. Chain 12. Hydraulic cylinder

13. Support wheel 14. Frame 15. Sliding wheel

16. Sliding wheel fixing bracket 17. Electrical equipment box 18. Power indicator

19. Key switch 20. Electrical equipment box bracket 21. Emergency stop button

22. Up button 23. Down button 24. Breaker hook

25. Frame chain fixed point 26. Support plate chain fixed point 27. Rack positioning beads

28. Width adjustment knob 29. Bayonet fixed point 30. Bayonet

31. Slide shaft 32. Locating pin 33. Rack

34. Worm 35. Rack and pinion 36. Worm gear

37. Bayonet handle 38. Bayonet return spring 39. Controller

40. Electric hydraulic oil pump 41. Insurance 42. Battery

43. Brackets.

detailed description

The utility model is a new type of automatic transfer tool, which is divided into four parts: an integral frame 14, a circuit breaker support plate 3, an electro-hydraulic mechanism, and electrical equipment. The hook 24 is connected to the frame 14 through the breaker hook bracket 7 . A handle 2 is respectively equipped with on both sides of the middle part of the frame 14 rear. A support wheel 13 is respectively equipped with on both sides, front, bottom of frame 14, directly links to each other with frame 14, and a lockable guide wheel 5 is respectively equipped with on both sides, bottom rear, links to each other with frame 14 by guide wheel support 6.

An electrical equipment box 17 is housed between the bottom of the transfer tool back, two lockable guide wheels 5, and an electrical equipment box bracket 20 is housed at its bottom. Circuit breaker pallet 3 is made up of bracket 43, bayonet pin 30, adjustment gear, sliding wheel 15, sliding wheel fixed support 16 etc., and wherein bracket 43 front end is equipped with positioning pin 32. Bracket 43 is contained on two slide shafts 31. Rack 33 is housed on the bracket 43, meshed with the gear. The gear is an upper and lower two-layer structure, the upper layer is a rack gear 35 meshing with the rack 33, the lower layer is a worm wheel 36 meshing with the worm 34 driven by the width adjustment knob 28. The bayonet 30 is fixed by the bayonet fixed point 29, and a bayonet return spring 38 is installed near the bayonet handle 37 for resetting.

The two ends of the sliding shaft 31 are respectively fixed on two sliding wheel fixing brackets 16 parallel to each other. The sliding wheel fixing brackets 16 are respectively equipped with two sliding wheels 15, and the sliding wheels 15 are stuck in the vertical supporting plate sliding C-shaped groove of the frame 14. within 1. The supporting plate is connected with the chain 11 through the supporting plate chain fixed point 26, the other end of the chain 11 is fixed on the frame 14 through the frame chain fixed point 25, the tail end of the hydraulic cylinder 12 is fixed on the frame 14, the hydraulic ejector rod 10 and the chain gear 9 And circuit breaker pallet 3 constitutes a laborious lever by chain 11. A circuit breaker hook 24 used for suspending the circuit breaker is installed on the top of the frame 14 .

The circuit breaker supporting plate 3 adopts a rack and pinion structure for transmission, a worm structure for adjustment, and positioning beads for fixed positioning. Bracket 43 is contained on two sliding shafts 31, and tooth bar 33 one ends are fixed on the bracket 43, and bracket 43 can be driven by tooth bar 33 and slides and adjusts width. Rack 33 is housed on the bracket 43, meshed with the gear. The gear is an upper and lower two-layer structure, the upper layer is a rack gear 35, which meshes with the rack 33, and the lower layer is a worm wheel 36, which meshes with the worm 34, and the worm 34 is driven by the width adjustment knob 28 to adjust the width of the supporting plate 43. Due to the anti-reversal feature of the worm gear structure, the worm gear 36 can only be driven by the worm 34 to rotate and the rack 33 to move. This process cannot be reversed, that is, the supporting plate cannot be directly moved by external force, which improves safety and reliability. At the same time, there is a circular groove on the back of the rack 33. When the pallet slides to a distance between 800mm and 1000mm, the positioning beads 27 of the rack will snap into the circular groove on the back of the rack 33, so as to achieve the purpose of positioning, and can It plays the role of fixing the rack 33, so that the gear and the rack 33 are closely matched.

The lifting structure of the circuit breaker pallet 3 of the transfer tool is realized by the hydraulic push rod 10 in cooperation with the chain transmission. One end of the hydraulic cylinder 12 and one end of the chain 11 are fixed on the frame 14, and the other end of the chain 11 is fixed on the breaker pallet 3. When the hydraulic jack 10 rises, the chain gear 9 rises at the same time, forming a laborious joint with the breaker pallet 3. Lever pulley block. The hydraulic ejector rod 10 only needs to raise half of the rising height of the circuit breaker support plate 3 to raise the circuit breaker support plate 3 to the highest point, which reduces the overall center of gravity, improves stability, and saves costs at the same time.

The mechanical working principle of the transfer tool is as follows.

A circuit breaker hook 24 for suspending the circuit breaker is installed on the top of the door-shaped frame 14, and the circuit breaker can be lifted to the level position of the hoisting hole and the circuit breaker hook 24 by the circuit breaker pallet 3. The circuit breaker hook 24 is hooked on the hoisting hole of the circuit breaker, and the circuit breaker supporting plate 3 of the transfer tool is lowered, so that the circuit breaker is suspended in the air, which is convenient for staff to overhaul.

A handle 2 is respectively housed on both sides of the middle part of the frame 14 rear, and is used when moving this transfer tool. A support wheel 13 is respectively equipped with on both sides, front, bottom of frame 14, and a lockable guide wheel 5 is respectively equipped with on both sides, bottom rear. The lockable guide wheel 5 can rotate 360 degrees, so that the transfer tool is convenient to turn when moving, and its locking structure can lock the lockable guide wheel 5 to prevent the transfer tool from moving.

An electrical equipment box 17 is housed between the bottom of the back of the transfer tool and between the two lockable guide wheels 5, and the electrical components of the transfer tool are all installed inside it. There is an electrical equipment box bracket 20 at the bottom of the electrical equipment box 17 to ensure its firmness. sex. The circuit breaker pallet 3 is composed of a bracket 43, bayonet pin 30, adjustment gear, sliding wheel 15, sliding wheel fixing bracket 16, etc., wherein the front part of the bracket 43 is equipped with a positioning pin 32, which can be docked with the groove at the front of the central cabinet , to ensure that the position of the transfer tool is accurate when used. Bracket 43 is contained on two slide shafts 31, can be driven by rack 33 to slide along slide shaft 31 directions, to adjust width, rack 33 cooperates with rack gear 35, drives rack 33 to move by rack gear 35. The gear is a two-layer structure up and down, the rack gear 35 drives the rack 33, and the worm wheel 36 of the lower floor cooperates with the worm screw 34. When the width adjustment knob 28 is turned, the worm 34 drives the worm wheel 36 to rotate, and the rack gear 35 integrated with the worm wheel 36 drives the tooth bar 33 to move, thereby achieving the purpose of adjusting the width of the supporting plate. Due to the anti-reverse characteristics of the structure of the worm 34 and the worm wheel 36, the bracket 43 cannot be directly moved by an external force, which improves safety and reliability. At the same time, there is a circular groove on the back of the rack 33. When the supporting plate slides to a distance of 800mm and 1000mm, the positioning beads 27 of the rack will snap into the groove on the back of the rack 33, thereby achieving the purpose of positioning.

Bayonet 30 can snap into the slot on the cabinet when the transfer tool is close to the middle cabinet, and fix the transfer tool. The bayonet 30 can rotate around the bayonet fixed point 29 driven by the bayonet handle 37 , and the bayonet return spring 38 keeps the bayonet 30 in the locked position all the time without external force.

The two ends of the sliding shaft 31 are respectively fixed on two sliding wheel fixing brackets 16 parallel to each other. The sliding wheel fixing brackets 16 are respectively equipped with two sliding wheels 15, and the sliding wheels 15 are stuck in the vertical supporting plate sliding C-shaped groove of the frame 14. 1, can slide up and down freely. Link to the chain 11 through the pallet chain fixing point 26 , and the other end of the chain 11 is fixed on the frame 14 through the frame chain fixing point 25 . The tail end of the hydraulic cylinder 12 is also fixed on the frame 14, and the hydraulic ejector rod 10 drives the chain gear 9 to rise and fall, and the chain gear 9 and the circuit breaker support plate 3 form a laborious lever through the chain 11, so the descending distance of the chain gear 9 is the circuit breaker support plate. Half of the rising and falling distance of the plate 3, that is, when the breaker pallet 3 is at the bottom, the chain gear 9 is in the middle position. When chain gear 9 rose to the top, breaker supporting plate 3 also rose to the top.

The electrical working principle of the transfer tool. Accumulator 42, controller 39, electro-hydraulic oil pump 40 are housed in the electrical equipment box 17; Charging interface 4, emergency stop button 21 is housed on supporting plate slide C-shaped groove 1 in addition, charging interface 4 is connected to storage battery 42 by wire, wherein a safety 41 is connected in series on positive pole wire, can cut off circuit when short circuit or electric current are too large.

The positive and negative poles of the batteries 42 connected in parallel are respectively connected to the controller 39 . The power indicator 18 is connected to the controller 39 through a signal cable, and displays the voltage and remaining power of the battery, so that the user can grasp the information of the battery 42 in time and facilitate management and maintenance. The key switch 19 is connected to the controller 39 by wire, and the whole circuit is controlled by the key to be switched off, and the key is in the administrator's hand, and a special person is responsible for it, so that the transfer tool can not be used arbitrarily. The electric motor and the control relay of the electric hydraulic oil pump 40 are respectively connected to the controller 39, and the oil pipes of the electric hydraulic oil pump 40 are respectively connected to the two hydraulic cylinders 12, and the oil supply and oil return of the hydraulic cylinder 12 are used to control the movement of the hydraulic ejector rod 10. Ascent and descent. The electric hydraulic oil pump 40 is controlled by the up button 22 and the down button 23 to supply and return oil to the hydraulic cylinder 12 . The up button 22 and the down button 23 are also connected to the controller 39 via wires. The emergency stop button 21 is also connected to the controller 39 by wire, and can be pressed when an emergency that needs to cut off the power supply takes place, so as to cut off the power supply instantaneously.

Example

The automatic transfer tool of the circuit breaker in the central cabinet is welded by 50×50 square tube and high-strength materials such as 2.5 thick cold-rolled steel plates. The overall height of the transfer tool is 1752mm and the width is 1130mm. The circuit breaker pallet is supported by two ф25 round steels and guide rails. The round steels are respectively equipped with positioning holes for adjusting circuit breakers of different specifications in 650mm, 800mm and 1000mm wide cabinets. The lifting stroke is 790mm. The hydraulic cylinder of the electrohydraulic mechanism adopts a hydraulic cylinder with an outer diameter of 50 mm. The battery in the electrical equipment box is connected in parallel with ten 12V20AH lead-acid batteries. The maximum load-bearing capacity of the automatic transfer tool for circuit breakers in central cabinets is 300kg, which is suitable for handcart circuit breakers in central cabinets with a width of 650mm, 800mm, and 1000mm.

The above-mentioned embodiment is only to describe the preferred implementation of the present utility model, not to limit the design and protection scope of the present utility model. Various modifications and improvements made in the technical solution of the utility model shall fall within the scope of protection of the utility model.

Claims (10)

1. a central cabinet circuit breaker automation transfer tool, it is characterized in that: comprise framework (14), circuit breaker supporting plate (3), electric hydaulic mechanism and electrical equipment four part, framework (14) is door type, and the circuit breaker suspension hook support (7) at top is equipped with circuit breaker suspension hook (24); Circuit breaker supporting plate (3) is slidably connected on framework (14), and circuit breaker supporting plate (3) is upper installs width-adjusting bracket (43), and (14) are provided with electric hydaulic mechanism to framework, mounting electrical equipment box (17) bottom transfer tool.

2. central cabinet circuit breaker automation transfer tool according to claim 1, it is characterized in that: a support wheel (13) is respectively equipped with in the both sides, front of described framework (14) bottom, bottom rear both sides are respectively equipped with one can locking track adjusting wheel (5), and a handles (2) is respectively equipped with in framework (14) both sides, rear.

3. central cabinet circuit breaker automation transfer tool according to claim 2, it is characterized in that: described framework (14) bottom is by guide wheel bracket (6) and can locking track adjusting wheel (5) be connected, two the electrical equipment cassette carrier (20) between locking track adjusting wheel (5) can be equipped with electric component box (17).

4. central cabinet circuit breaker automation transfer tool according to claim 1, it is characterized in that: the sliding wheel fixed support (16) on described circuit breaker supporting plate (3) is arranged in supporting plate slip C type groove (1) by the sliding wheel (15) of both sides, bracket (43) is arranged on by slide shaft (31) on two pieces of sliding wheel fixed supports (16) being parallel to each other, and (43) install width adjustment mechanism with bracket.

5. central cabinet circuit breaker automation transfer tool according to claim 4, it is characterized in that: two tooth bars (33) of described width adjustment mechanism are connected with the bracket (43) of both sides respectively, two tooth bars (33) are engaged with the rack pinion (35) at middle part, and the upper worm gear (36) connected of rack pinion (35) engages with worm screw (34).

6. central cabinet circuit breaker automation transfer tool according to claim 5, it is characterized in that: described rack pinion (35) and worm gear (36) are integral type structure, there is circular groove at tooth bar (33) back, tooth bar (33) back is equipped with tooth bar positioning bead (27) and sticks into groove, and worm screw (34) is connected with width adjusting knob (28).

7. central cabinet circuit breaker automation transfer tool according to claim 1, it is characterized in that: described bracket (43) leading portion is equipped with the locating dowel pin (32) docked with middle-placed switch cabinet front groove, bracket (43) is also provided with bayonet lock (30), bayonet lock (30) is hinged on bayonet lock attachment point (29), and the bayonet lock handle (37) on bayonet lock (30) is connected with bayonet lock retracing spring (38).

8. central cabinet circuit breaker automation transfer tool according to claim 1, it is characterized in that: described electric hydaulic mechanism comprises hydraulic actuating cylinder (12), electric hydraulic oil pump (40), power supply, hydraulic actuating cylinder (12) tail end is fixed on framework (14), hydraulic mandril (10) is installed chain pitch wheel (9), chain (11) one end connects supporting plate chain attachment point (26), stride across chain pitch wheel (9), the other end is fixed on the framework chain attachment point (25) of framework (14).

9. central cabinet circuit breaker automation transfer tool according to claim 1, it is characterized in that: electric component box (17) is built with storage battery (42), controller (39) and electric hydraulic oil pump (40), electric hydraulic oil pump (40) electrical motor and relay are connected respectively on controller (39), electric component box (17) guidance panel is equipped with electric-quantity display device (18), key switch (19), raise button (22), decline button (23), charging inlet (4) is also equipped with in electric component box (17) side.

10. central cabinet circuit breaker automation transfer tool according to claim 9, it is characterized in that: charging inlet (4) connects storage battery (42) by wire, a series connection insurance (41) on positive wire, emergency stop push button (21) is also equipped with at framework (14) middle part.