CN202111402U

CN202111402U - 3AH5 vacuum circuit breaker handcart

Info

Publication number: CN202111402U
Application number: CN2011202361222U
Authority: CN
Inventors: 傅建平
Original assignee: JIYUAN ELECTRIC GROUP CO Ltd
Current assignee: JIYUAN ELECTRIC GROUP CO Ltd
Priority date: 2011-07-06
Filing date: 2011-07-06
Publication date: 2012-01-11
Anticipated expiration: 2021-07-06

Abstract

A 3AH5 vacuum circuit breaker handcart comprises a circuit breaker body, which is fixedly installed on an L-shaped framework, and the framework is installed on a propulsion mechanism. The propulsion mechanism is composed of a bottom board, a lead screw, a valve opening device, a mechanical interlocking device and elastic clappers, wherein the lead screw, the valve opening device and the mechanical interlocking device are arranged on the bottom board, and the elastic clappers are installed on two sides of the bottom board. A touch arm is fixedly arranged on an upper wire outlet base and a lower wire outlet base of the circuit breaker body respectively, and the front end of each touch arm is a tulip contact. The circuit breaker body serves as the main body, and combined with characteristics of a KYN28A-12 handcart type switch cabinet so that the 3AH5 vacuum circuit breaker handcart can be matched with the KYN28A-12 handcart type switch cabinet. A user can choose whether to arranged a lower bottom frame or not as required, and when the lower bottom frame is arranged, a floor handcart type 3AH5 vacuum circuit breaker is obtained, and when the lower bottom frame is not used, the 3AH5 vacuum circuit breaker handcart is a centrally-mounted handcart.

Description

3AH5 vacuum circuit-breaker handcart

[technical field]

The utility model belongs to a kind of 3AH5 vacuum circuit-breaker handcart.

[background technology]

3AH5 type vacuum circuit-breaker is the fixed vacuum circuit-breaker of a kind of 10kV that Siemens Company manufactures according to the Chinese Industrial Standards (CIS) particular design; It uses large distance that the ceramic vacuum arc control device of shirt rim are arranged; Have advantages such as project organization compactness, operation lifetime length; Be a kind ofly to receive deeply that the user favors, desirable high-performance vacuum circuit-breaker, consumption is very big.But; Because existing 3AH5 is a kind of fixed vacuum circuit-breaker, can only be installed in the fixed switch cubicle and use, and has the defective of safeguarding and overhauling inconvenience; Therefore; Use amount is reducing year by year, and more users then tend to use handcart switch cabinet, and wherein the use amount of 10kV/KYN28A-12 handcart switch cabinet is the most universal at most.How to improve the fixed vacuum circuit-breaker of 3AH5, make it to be complementary, thereby further enlarge the application of 3AH5 type vacuum circuit-breaker, become a pendulum very real and urgent problem in face of the expert with the KYN28A-12 handcart switch cabinet.

[summary of the invention]

For solving the problems referred to above that prior art exists, the utility model aims to provide the novel 3AH5 vacuum circuit-breaker of a kind of structure, and this circuit breaker after the improvement can use with KYN28A-12 handcart switch cabinet coupling well.

For realizing above-mentioned purpose; The utility model has adopted following technical scheme: the structure of this 3AH5 vacuum circuit-breaker handcart; Comprise breaker body; It is characterized in that: said breaker body is fixedly mounted on the L type framework, and the valve device for opening is equipped with in these base of frame both sides, and said frame fixation is installed on the propulsive mechanism; Said propulsive mechanism is by a base plate, and the elasticity hyoplastron that is arranged on screw mandrel, the mechanical interlocks on this base plate and is installed in the base plate both sides constitutes; On the upper and lower outlet seat of said breaker body, be fixed with a contact arm respectively, the front end of this contact arm is a Mume flower contact.

During practical implementation, said valve device for opening is the bent plate of a U font, and its front end two side has a flanging respectively after outwards being folded to 90 degree.

During practical implementation; Said mechanical interlocks is made up of two supports, a locking part, a blocking lever; Said two supports interconnect and are installed on the said framework; The two ends up and down of a support in two supports have a hole of admitting blocking lever respectively, and an end of said blocking lever is connected with locking part through nut, and this locking part is coupled to each other through screw rod with a jam plate is in the same place.

During practical implementation, the rear end of said contact arm is the crooked pancake of 90 degree, by some bolted on the outlet seat of breaker body.

During practical implementation, the below of said propulsive mechanism have one have a wheel following underframe.

Beneficial effect: compared with prior art; The utility model is main body with the breaker body; Characteristics in conjunction with the KYN28A-12 handcart switch cabinet; Through breaker body being fixedly installed on the framework that has propulsive mechanism, after screw mandrel, valve opening device, mechanical interlocks and elasticity hyoplastron are set on the framework, constituted a 3AH5 vacuum circuit-breaker handcart that is complementary with the KYN28A-12 handcart switch cabinet.The user can select whether underframe is set down as required, is provided with down promptly to become behind the underframe to land handcart-type 3AH5 vacuum circuit-breaker, need not play underframe to be the middle handcart.

[description of drawings]

For deepening understanding, make further detailed description through embodiment below in conjunction with accompanying drawing to the utility model.

Fig. 1 is the side-looking structural representation of an embodiment of the utility model.

Fig. 2 is the left view of Fig. 1.

Among the figure: Mume flower contact 1, contact arm 2, breaker body 3, outlet seat (31), framework 4; Combined floodgate push rod 5, main shaft connecting lever 6, blocking lever 7, spring 8, support 9; Support 10, propulsive mechanism 11, elasticity hyoplastron 111, following underframe 12, valve device for opening 13; Jam plate 14, locking part 15, outlet seat 16, interior blocking lever 17.

[embodiment]

Referring to Fig. 1, and combine Fig. 2.The structure of this 3AH5 vacuum circuit-breaker handcart comprises breaker body 3, framework 4, propulsive mechanism 11 and following underframe 12.Framework 4 is the L type, is welded into integral body by sheet material, has through hole, screw that associated components is installed on it; Be fixedly mounted on the propulsive mechanism 11.

Propulsive mechanism is KYN28 a kind of specification commonly used, and whole is outsourcing.Screw mandrel and feed screw nut are arranged in the propulsive mechanism 11, and handcart is shifted onto before the cupboard, the past lira of both sides handle; The hyoplastron on propulsive mechanism 11 both sides is followed in the indentation propulsive mechanism 11; During to the handcart test position, decontrol handle both sides hyoplastron and eject automatically, insert in the cupboard groove; At this moment just drive propulsive mechanism 11 (or claiming chassis) with handle rotary screw rod feed screw nut and pushed ahead, when the service position, shake motionless.One jam plate 14 is arranged in the propulsive mechanism 11, be used for and breaker body 3 interlockings, jam plate was pushed down the screw mandrel of propulsive mechanism 11 when circuit breaker closed, and it can not be shaken; And the circuit breaker timesharing, behind the handle rotary screw rod, jam plate can be upspring automatically, is urged into in-house interlocking when having arrived service position and test position again and is drawn into initial position.

For satisfying high-tension apparatus five anti-interlock requirements, be provided with the mechanical interlock mechanism between propulsive mechanism 11 and the breaker body 3.This mechanism is by two supports 9 that connect breaker body 3 and

propulsive mechanism

11 and 10, and formations such as locking part 15, blocking lever 7.Said support 10 is installed on the framework 4; Be used for mounting bracket 9; The two ends up and down of support 9 respectively have a hole, are used to pass blocking lever 7, play the guiding role; Blocking lever 7 links together with nut through the upper end hole of locking part 15, and the hole on the following stomidium of locking part 15 and the jam plate 14 of propulsive mechanism 11 links together with the nut and the screw rod of standard.When breaker closing, the connecting lever 6 on the circuit breaker main shaft withstands blocking lever 7 upper ends, pushes down propulsive mechanism jam plate 14 through locking part 15, and propulsive mechanism can not be shaken; When breaker open operation; Handcart shakes when into shaking out; Propulsive mechanism jam plate 14 rises, and drives the inner blocking lever 17 of circuit breaker through locking part 15, blocking lever 7 and rises, and withstands combined floodgate push rod 5 in the circuit breaker after the inner blocking lever 17 of circuit breaker rises; Combined floodgate push rod 5 can not be advanced inward, thereby circuit breaker can not be closed a floodgate.

Said valve device for opening 13 has only a part, and this part is the bent plate of a U font, and its front end two side forms flanging respectively after outwards being folded to 90 degree.The effect of said flanging is guiding and compresses the valve roller to the U-shaped guide rail, thereby opens valve.During operation, handcart is in progradation, and said roller can roll in guide rail, opens and keeps valve to be in the purpose of opening thereby reach.The structure of said valve by valve body up and down, valve connecting rod, valve connecting plate, and roller are up and down formed up and down, belong to the KYN28A-12 handcart switch cabinet and form structure, are installed in the switch cubicle left and right sides.During operation, handcart is in progradation, and the roller of the valve device for opening front end pull switch cabinet left and right sides valve interlock of the handcart left and right sides is goed ahead; The valve connecting plate rotates around its fulcrum up and down simultaneously; Last valve connecting plate drives to be gone up the valve connecting rod and up moves, and drives and go up valve and up move, and following valve connecting plate drives down that the valve connecting rod down moves; And valve down moves under driving, thereby valve is all opened about making.

Be fixed with a contact arm 2 respectively on the upper and lower outlet seat of said breaker body 3, the front end of this contact arm 2 is a Mume flower contact 3.During practical implementation, the rear end of said contact arm 2 is the crooked pancake of 90 degree, by some bolted on the outlet seat 31 of breaker body 3.

The below of said propulsive mechanism 11 have one have a wheel following underframe 12.The user can select whether to set up down underframe 12 as required, promptly becomes the console mode handcart if be provided with, and removing down, underframe 12 is the middle handcart.

Claims

1. 3AH5 vacuum circuit-breaker handcart; Comprise breaker body (3); It is characterized in that: said breaker body (3) is fixedly mounted on the L type framework (4), and this framework (4) two bottom sides is equipped with valve device for opening (13), said framework (4) is fixedly mounted on the propulsive mechanism (11); This propulsive mechanism (11) is by a base plate, and the elasticity hyoplastron (111) that is arranged on screw mandrel, the mechanical interlocks on this base plate and is installed in the base plate both sides constitutes; On the upper and lower outlet seat (31) of said breaker body (3), be fixed with a contact arm (2) respectively, the front end of this contact arm (2) is Mume flower contact (1).

2. 3AH5 vacuum circuit-breaker handcart as claimed in claim 1 is characterized in that: said valve opening device (13) is the bent plate of a U font, and its front end two side forms a flanging respectively after outwards being folded to 90 degree.

3. 3AH5 vacuum circuit-breaker handcart as claimed in claim 1; It is characterized in that: said mechanical interlocks is by two supports (9; 10), a locking part (15), a blocking lever (7) are formed; Said two supports interconnect and are installed on the said framework; The two ends up and down of the support (10) in two supports have a hole of admitting blocking lever respectively, saidly are connected with locking part (15) through nut with an end of blocking lever (7), and this locking part (15) and a jam plate are coupled to each other together through screw rod.

4. 3AH5 vacuum circuit-breaker handcart as claimed in claim 1 is characterized in that: the rear end of said contact arm (2) is the crooked pancake of 90 degree, by some bolted on the outlet seat (31) of breaker body (3).

5. 3AH5 vacuum circuit-breaker handcart as claimed in claim 1 is characterized in that: the below of said propulsive mechanism (11) have one have a wheel following underframe (12).