阅读说明：本技术 一种断路器的装卸小车 (Loading and unloading trolley for circuit breaker ) 是由 潘建礼 于 2020-06-30 设计创作，主要内容包括：本发明公开了一种断路器的装卸小车,包括底座；底座的下端面上设置有若干带刹车的万向轮；底座的正上方升降设置有中心支撑板；中心支撑板的左侧和右侧分别左右移动设置有限位移动板；一对限位移动板与中心支撑板同步升降设置；一对限位移动板相互远离的端面上分别成型有若干前后均匀分布的限位销；连接板上成型有若干前后均匀分布的供限位销穿过的限位穿孔；当限位移动板抵靠住相应侧的连接板时,限位销穿过相应侧的限位穿孔并且限位销远离限位移动板的一端超出连接板；限位移动板的上端面上成型有左右阻挡板。(The invention discloses a loading and unloading trolley of a circuit breaker, which comprises a base; a plurality of universal wheels with brakes are arranged on the lower end surface of the base; a central supporting plate is arranged right above the base in a lifting manner; the left side and the right side of the central supporting plate respectively move left and right and are provided with a limiting moving plate; the pair of limiting moving plates and the central supporting plate are synchronously lifted; a plurality of limit pins which are uniformly distributed front and back are respectively formed on the end surfaces of the pair of limit moving plates which are far away from each other; a plurality of limiting through holes which are uniformly distributed at the front and the back and are used for the limiting pin to pass through are formed on the connecting plate; when the limiting moving plate abuts against the connecting plate on the corresponding side, the limiting pin penetrates through the limiting through hole on the corresponding side, and one end, far away from the limiting moving plate, of the limiting pin exceeds the connecting plate; the upper end surface of the limiting moving plate is provided with a left stop plate and a right stop plate.)

1. The utility model provides a loading and unloading dolly of circuit breaker which characterized in that: comprises a vehicle body (10) and a limiting device (20); the vehicle body (10) includes a base (11); side supporting frames are respectively formed at the front end and the rear end of the upper end face of the base (11); a plurality of universal wheels (17) with brakes are arranged on the lower end surface of the base (11); a sliding guide rail (15) is fixed on the upper end surface of the side supporting frame; connecting plates (16) are respectively formed between the left end and the right end of the side supporting frames; the limiting device (20) comprises a central supporting plate (22) which is arranged right above the base (11) in a lifting way; a central support plate (22) is positioned between a pair of side support frames; a limiting moving plate (26) is respectively arranged on the left side and the right side of the central supporting plate (22) in a left-right moving mode; the pair of limiting moving plates (26) and the central supporting plate (22) are synchronously lifted; a plurality of limit pins (261) which are uniformly distributed in the front and back are respectively formed on the end surfaces of the pair of limit moving plates (26) which are far away from each other; a plurality of limiting through holes (160) which are uniformly distributed front and back and are used for the limiting pin (261) to pass through are formed on the connecting plate (16); when the central support plate (22) is positioned at the lowest end and the limit moving plate (26) abuts against the connecting plate (16) of the corresponding side, the limit pin (261) penetrates through the limit through hole (160) of the corresponding side and one end, far away from the limit moving plate (26), of the limit pin (261) exceeds the connecting plate (16); a left stop plate and a right stop plate (27) are formed on the upper end surface of the limit moving plate (26); a plurality of positioning holes matched with the limiting pins (261) are formed in the draw-out type solid insulation ring main unit; when the limiting pin (261) is inserted into the positioning hole, the pair of sliding guide rails (15) is aligned with the pair of rails on the draw-out type solid insulation ring main unit.

2. The loading and unloading trolley for circuit breakers according to claim 1, characterized in that: a pair of lifting electric cylinders (21) which are symmetrically arranged in front and back are fixed on the upper end surface of the base (11); the front end and the rear end of the central supporting plate (22) are fixed at the upper ends of the piston rods of the pair of lifting electric cylinders (21).

3. The loading and unloading trolley for circuit breakers according to claim 1, characterized in that: a plurality of guide rods (223) which are uniformly distributed front and back are respectively formed on the left end surface and the right end surface of the central support plate (22); the left and right directions of the limiting moving plate (26) are sleeved on the guide rods (223) on the corresponding sides; a lower support frame (221) shaped like a Chinese character 'ji' is formed on the lower end surface of the central support plate (22); a lifting threaded rod (231) is pivoted between the horizontal part of the lower support frame (221) and the lower end surface of the central support plate (22); a lifting driving motor (23) is fixed at the center of the lower end face of the central supporting plate (22); the upper end of the lifting threaded rod (231) is fixedly connected with an output shaft of the lifting driving motor (23); a lifting driving plate (24) is vertically arranged between the pair of vertical parts of the lower supporting frame (221); the lifting driving plate (24) is in threaded connection with the lifting threaded rod (231); the left end surface and the right end surface of the lifting driving plate (24) are respectively hinged with a plurality of driving connecting rods (25) which are uniformly distributed front and back; the other end of the driving connecting rod (25) is hinged on the lower end surface of the limiting moving plate (26) on the corresponding side.

4. A breaker handling trolley according to claim 3, wherein: the number of the guide rods (223) is the same as that of the limit pins (261), and guide through holes (2610) which are penetrated left and right and are used for the guide rods (223) to penetrate left and right are formed in the left end surface of the limit pin (261).

5. A breaker handling trolley according to claim 3, wherein: a plurality of vertical guide rods (222) which are uniformly distributed in the front-back direction are fixed between the horizontal part of the lower support frame (221) and the lower end surface of the central support plate (22); the lifting driving plate (24) is vertically sleeved on the vertical guide rod (222).

6. A breaker handling trolley according to claim 3, wherein: when the central support plate (22) is at the lowest end and the limit moving plate (26) abuts against the connecting plate (16) of the corresponding side, the lifting drive plate (24) is at the highest end and the drive connecting rod (25) is in a horizontal state.

7. The loading and unloading trolley for circuit breakers according to claim 1, characterized in that: the side supporting frame comprises a pair of left and right supporting rods (12) fixed on the upper end surface of the base (11); an upper horizontal support rod (13) is fixed between the upper ends of the pair of left and right support rods (12); the sliding guide rail (15) is fixed on the upper end surface of the upper horizontal support rod (13); a vertical connecting rod (14) is fixed between the middle part of the lower end surface of the upper horizontal supporting rod (13) and the upper end surface of the base (11).

Technical Field

The invention relates to the technical field of loading and unloading of circuit breakers, in particular to a loading and unloading trolley of a circuit breaker.

Background

The draw-out solid insulation ring main unit is a novel switch complete equipment which can independently overhaul, maintain and replace a breaker which is an important unit of the insulation ring main unit. The circuit breaker in the drawout solid insulation ring main unit is arranged on two tracks in the drawout solid insulation ring main unit and can slide along the tracks. Because the circuit breaker is large in size and heavy in weight, at present, when an operator dismantles the circuit breaker, more than two persons are needed to draw out the circuit breaker from the insulating ring main unit and lift the circuit breaker on the transport trolley; when the circuit breaker is installed, the circuit breaker on the trolley needs to be lifted by more than two persons and placed into the insulating ring main unit. The mounting and dismounting mode has low working efficiency and potential safety hazard.

Disclosure of Invention

The invention aims to solve the technical problems that the existing loading and unloading mode of a circuit breaker is low in working efficiency and has potential safety hazards, and provides a loading and unloading trolley of the circuit breaker.

The technical scheme for solving the technical problems is as follows: a loading and unloading trolley for a circuit breaker comprises a trolley body and a limiting device; the vehicle body comprises a base; side supporting frames are respectively formed at the front end and the rear end of the upper end surface of the base; a plurality of universal wheels with brakes are arranged on the lower end surface of the base; a sliding guide rail is fixed on the upper end surface of the side supporting frame; connecting plates are respectively formed between the left end and the right end of the side supporting frames; the limiting device comprises a central supporting plate which is arranged right above the base in a lifting way; the central support plate is positioned between the pair of side support frames; the left side and the right side of the central supporting plate respectively move left and right and are provided with a limiting moving plate; the pair of limiting moving plates and the central supporting plate are synchronously lifted; a plurality of limit pins which are uniformly distributed front and back are respectively formed on the end surfaces of the pair of limit moving plates which are far away from each other; a plurality of limiting through holes which are uniformly distributed at the front and the back and are used for the limiting pin to pass through are formed on the connecting plate; when the central support plate is positioned at the lowest end and the limiting moving plate abuts against the connecting plate on the corresponding side, the limiting pin penetrates through the limiting through hole on the corresponding side and one end, far away from the limiting moving plate, of the limiting pin exceeds the connecting plate; a left stop plate and a right stop plate are formed on the upper end surface of the limiting moving plate; a plurality of positioning holes matched with the limiting pins are formed in the extraction type solid insulation ring main unit; when the limiting pin is inserted into the positioning hole, the pair of sliding guide rails is aligned with the pair of rails on the draw-out type solid insulation ring main unit.

Preferably, a pair of electric lifting cylinders which are symmetrically arranged in front and back are fixed on the upper end surface of the base; the front end and the rear end of the central supporting plate are fixed at the upper ends of the piston rods of the pair of lifting electric cylinders.

Preferably, the left end face and the right end face of the central support plate are respectively provided with a plurality of guide rods which are uniformly distributed in the front and the back; the left and right directions of the limiting moving plate are sleeved on the guide rods on the corresponding sides; a lower support frame shaped like a Chinese character 'ji' is formed on the lower end surface of the central support plate; a lifting threaded rod is pivoted between the horizontal part of the lower support frame and the lower end surface of the central support plate; a lifting driving motor is fixed at the center of the lower end face of the central supporting plate; the upper end of the lifting threaded rod is fixedly connected with an output shaft of the lifting driving motor; a lifting driving plate is vertically arranged between the pair of vertical parts of the lower supporting frame in a moving mode; the lifting drive plate is in threaded connection with the lifting threaded rod; the left end surface and the right end surface of the lifting driving plate are respectively hinged with a plurality of driving connecting rods which are uniformly distributed front and back; the other end of the driving connecting rod is hinged on the lower end face of the limiting moving plate on the corresponding side.

Preferably, the number of the guide rods is equal to the number of the stopper pins, and a left end surface of the stopper pin is formed with left and right penetrating guide through holes through which the guide rods pass left and right.

Preferably, a plurality of vertical guide rods which are uniformly distributed in the front-back direction are fixed between the horizontal part of the lower support frame and the lower end surface of the central support plate; the lifting driving plate is vertically sleeved on the vertical guide rod.

Preferably, when the central support plate is at the lowest end and the limit moving plate abuts against the connecting plate on the corresponding side, the lifting drive plate is at the highest end and the drive connecting rod is in a horizontal state.

Preferably, the side support frame comprises a pair of left and right support rods fixed on the upper end surface of the base; an upper horizontal supporting rod is fixed between the upper ends of the left and right supporting rods; the sliding guide rail is fixed on the upper end surface of the upper horizontal support rod; a vertical connecting rod is fixed between the middle part of the lower end surface of the upper horizontal supporting rod and the upper end surface of the base.

The invention has the beneficial effects that: when the breaker is assembled and disassembled, the position of the trolley is accurate and stable, and the breaker is convenient to assemble and disassemble; when the dolly removed, the unexpected landing can not be expected to the circuit breaker, and the security is high.

Drawings

FIG. 1 is a schematic structural view of a cross section of the present invention;

fig. 2 is a schematic structural view of a cross section of the present invention.

In the figure, 10, a vehicle body; 11. a base; 12. a left support bar and a right support bar; 13. an upper horizontal support bar; 14. a vertical connecting rod; 15. a sliding guide rail; 16. a connecting plate; 160. limiting and perforating; 17. a universal wheel; 20. a limiting device; 21. a lifting electric cylinder; 22. a center support plate; 221. a lower support frame; 222. a vertical guide rod; 223. a guide bar; 23. a lifting drive motor; 231. lifting a threaded rod; 24. lifting the driving plate; 25. a drive link; 26. a limiting moving plate; 261. a spacing pin; 2610. guiding and perforating; 27. left and right blocking plates.

Detailed Description

As shown in fig. 1 and 2, the loading and unloading trolley for the circuit breaker comprises a trolley body 10 and a limiting device 20; the vehicle body 10 includes a base 11; side supporting frames are respectively formed at the front end and the rear end of the upper end face of the base 11; a plurality of universal wheels 17 with brakes are arranged on the lower end surface of the base 11; a sliding guide rail 15 is fixed on the upper end surface of the side supporting frame; connecting plates 16 are respectively formed between the left end and the right end of the side supporting frames; the limiting device 20 comprises a central supporting plate 22 which is arranged right above the base 11 in a lifting way; the central support plate 22 is positioned between a pair of side support frames; a limiting moving plate 26 is respectively arranged on the left side and the right side of the central supporting plate 22 in a left-right moving mode; the pair of limiting moving plates 26 and the central supporting plate 22 are synchronously lifted; a plurality of limit pins 261 which are uniformly distributed front and back are respectively formed on the end surfaces of the pair of limit moving plates 26 which are far away from each other; a plurality of limit through holes 160 which are uniformly distributed at the front and the back and are used for the limit pins 261 to pass through are formed on the connecting plate 16; when the central support plate 22 is at the lowermost end and the limit moving plate 26 abuts against the connecting plate 16 of the corresponding side, the limit pin 261 passes through the limit through hole 160 of the corresponding side and one end of the limit pin 261 remote from the limit moving plate 26 exceeds the connecting plate 16; a left stop plate 27 and a right stop plate 27 are formed on the upper end surface of the limit moving plate 26; a plurality of positioning holes matched with the limit pins 261 are formed in the draw-out type solid insulation ring main unit; when the limit pin 261 is inserted into the positioning hole, the pair of slide rails 15 is aligned with the pair of rails on the pull-out type solid insulation ring main unit.

As shown in fig. 2, a pair of electric lifting cylinders 21 symmetrically arranged in front and back are fixed on the upper end surface of the base 11; the front and rear ends of the center support plate 22 are fixed to the upper ends of the piston rods of the pair of elevating electric cylinders 21.

As shown in fig. 1 and 2, the left and right end surfaces of the central support plate 22 are respectively formed with a plurality of guide rods 223 uniformly distributed in the front and back; the limiting moving plate 26 is sleeved on the guide rods 223 on the corresponding side in the left-right direction; a lower support frame 221 shaped like a Chinese character 'ji' is formed on the lower end surface of the central support plate 22; a lifting threaded rod 231 is pivoted between the horizontal part of the lower support frame 221 and the lower end surface of the central support plate 22; a lifting driving motor 23 is fixed at the center of the lower end face of the central supporting plate 22; the upper end of the lifting threaded rod 231 is fixedly connected with an output shaft of the lifting driving motor 23; a lifting driving plate 24 is vertically movably arranged between the pair of vertical parts of the lower supporting frame 221; the lifting driving plate 24 is screwed on the lifting threaded rod 231; the left end face and the right end face of the lifting driving plate 24 are respectively hinged with a plurality of driving connecting rods 25 which are uniformly distributed front and back; the other end of the driving connecting rod 25 is hinged on the lower end surface of the limit moving plate 26 on the corresponding side.

As shown in fig. 1, the number of the guide rods 223 is the same as that of the stopper pins 261, and left and right penetrating guide through holes 2610 through which the guide rods 223 pass left and right are formed in the left end surface of the stopper pin 261.

As shown in fig. 2, a plurality of vertical guide rods 222 are fixed between the horizontal portion of the lower support frame 221 and the lower end surface of the central support plate 22; the lifting drive plate 24 is vertically sleeved on the vertical guide rod 222.

As shown in fig. 1, when the center support plate 22 is at the lowermost end and the stopper moving plate 26 abuts against the connecting plate 16 of the corresponding side, the lift driving plate 24 is at the uppermost end and the driving connecting rod 25 is in a horizontal state.

As shown in fig. 1 and 2, the side support frame includes a pair of left and right support rods 12 fixed to the upper end surface of the base 11; an upper horizontal support rod 13 is fixed between the upper ends of the pair of left and right support rods 12; the sliding guide rail 15 is fixed on the upper end surface of the upper horizontal support rod 13; a vertical connecting rod 14 is fixed between the middle part of the lower end surface of the upper horizontal supporting rod 13 and the upper end surface of the base 11.

The working principle of a loading and unloading trolley of the circuit breaker;

in the initial state, the center support plate 22 is at the lowermost end, and the lifting drive plate 24 is at the lowermost end with respect to the center support plate 22, so that the pair of limit moving plates 26 is located between the pair of connecting plates 16;

when the circuit breaker needs to be disassembled, firstly, the lifting drive plate 24 is lifted until the lifting drive plate 24 is positioned at the uppermost end relative to the central support plate 22, so that the limit moving plate 26 abuts against the connecting plate 16 at the corresponding side, the limit pin 261 penetrates through the limit through hole 160 at the corresponding side, and one end, far away from the limit moving plate 26, of the limit pin 261 exceeds the connecting plate 16, then the limit pin 261 is inserted into the positioning hole at the corresponding side on the draw-out type solid insulation ring main unit, so that the pair of sliding guide rails 15 are aligned with the pair of rails on the draw-out type solid insulation ring main unit, then the trolley is in a non-movable state through the brake of the universal wheel 17, then the circuit breaker slides onto the pair of sliding guide rails 15 along the pair of rails on the draw-out type solid insulation ring main unit, then the lifting drive plate 24 is lowered, so that, the central support plate 22 is then raised until the circuit breaker is positioned between the pair of left and right blocking plates 27 so that the circuit breaker cannot accidentally slide off during movement of the handling trolley; finally, the brake of the universal wheel 17 is opened, so that the loading and unloading trolley can move freely;

the principle of assembly and the principle of operation of disassembly.

The above description is only a preferred embodiment of the present invention, and for those skilled in the art, the present invention should not be limited by the description herein, since various changes and modifications can be made in the details of the embodiment and the application range according to the spirit of the present invention.