CN208306382U - A kind of pantograph bow-lifting device - Google Patents

Abstract

The utility model discloses a kind of pantograph bow-lifting devices, including air bag, actuator, connector, arc block and the wirerope being mounted on chassis, the top of the air bag is fixedly connected with the actuator, one end of the actuator and the chassis are hinged, the other end and the connector are hinged, the arc block is fixed on the connector, with arc-shaped for accommodating the groove of the wirerope in the arc block, it is contained in the middle part of the wirerope in the arc-shaped groove, two ends of the wirerope are fixed on the lower arm rod of pantograph.The pantograph bow-lifting device quality of the utility model is lighter, and structural strength is reliable, and the stress of wirerope is improved, and improves service life and reliability.

Description

A kind of pantograph bow-lifting device

Technical field

The utility model relates to a kind of pantograph bow-lifting devices, belong to pantograph technical field.

Background technique

In existing EMU, electric locomotive and city rail vehicle pantograph in driving device technology, mainly there is spring driving With two kinds of air spring (being commonly called as air bag, leather bag cylinder), both pantographs require that vehicle provides compressed air for pantograph It uses.Rising bow when gasbag-type pantograph air bag is inflated, by pantograph self weight drop bow when no gas.Air spring have it is light-weight, The advantages that structure is simple, and manufacture, O&M cost are low, and damping characteristic is excellent.In addition to this, pantograph is driven relative to spring, There is better bow net followability using the pantograph of air spring driving, current carrying quality is high.So air spring driving has become For the main trend of pantograph driving method.At present, electric locomotive both at home and abroad, EMU and city rail vehicle pantograph driving dress It sets and almost all employs air spring.

To provide enough pantograph rising bow torques, existing driving device often can only all select the air bullet being relatively large in diameter Spring.The vertical air spring of major diameter gets higher pantograph Undercarriage structure, is equivalent to the chopper bar height for increasing pantograph, this is by shadow It rings and arrives vehicle gauge and Dynamic Envelope, therefore pantograph uses horizontal air bag driving device or vertical minor diameter double bolloon Driving device.Utility model patent (notification number: CN206155194U) discloses a kind of pantograph bow-lifting device, enough meeting Driving force while, by the vertical monosaccate driving device of reasonable Arrangement, reached the chopper bar height for not increasing pantograph Purpose.However the pantograph bow-lifting device there is problems: on the one hand, shield will rise with the inflation of air bag, Must have certain rigidity, therefore the weight of shield is big, be unfavorable for the loss of weight of rail vehicle；On the other hand, wirerope around On supporting plate and coiling stake, wirerope bears biggish stress at branch Board position and concentrates, and is easy wirerope over time and is easy It damages.

Utility model content

In order to overcome problems of the prior art, the utility model provides a kind of pantograph bow-lifting device, specific skill Art scheme is as follows.

A kind of pantograph bow-lifting device, including the air bag being mounted on chassis, which is characterized in that further include have actuator, Connector, arc block and wirerope, the top of the air bag are fixedly connected with the actuator, one end of the actuator and institute It is hinged to state chassis, the other end and the connector are hinged, and the arc block is fixed on the connector, have in the arc block There is the arc-shaped groove for being used to accommodate the wirerope, be contained in the arc-shaped groove in the middle part of the wirerope, Two ends of the wirerope are fixed on the lower arm rod of pantograph.

After vehicle issues rising bow order, the compressed air of vehicle enters pantograph gas by pantograph valve plate, air hose Capsule is inflated, and drives actuator to rotate around the hinge joint of actuator and chassis in air bag expansion process, actuator rotation process Middle band follower link and arc block move upwards, and then pull wirerope movement, and wirerope generates torque to lower arm rod, so that under Armed lever rotation, makes pantograph start rising bow.When airline pressure reaches valve plate setting value, gasbag pressure is no longer increased to guarantee Pantograph contact pressure meets the requirements.After vehicle issues drop bow instruction, pantograph air bags, in pantograph Gravitative Loads Under, pantograph starts to drop bow movement.Since connector and actuator use articulated connection mode, enable the movement of wirerope Naturally the rotation for following actuator optimizes the force-bearing situation of wirerope, improves the service life of pantograph bow-lifting device.

Further, the actuator includes two pieces of driving plates being vertically arranged, and bolt is also cross two pieces of drivings It is fastenedly connected after plate, the first axle sleeve and chassis with nut, first axle sleeve is between two pieces of driving plates and divides It is not abutted with two pieces of driving plates, the chassis is set in outside first axle sleeve, and the both ends and the bottom of first axle sleeve Flange bearing is provided between frame.The articulated connection of actuator and chassis is achieved, first axle set is for limiting two pieces The distance between driving plate improves the globality of two pieces of driving plates while realizing hinged；When the bladder inflates, air bag Lifting force straight up, is parallel to driving plate, and driving plate is unlikely to deform, and can suitably mitigate the weight (quality) of driving plate In the case of, guarantee the rigidity of driving plate.

Further, bolt is fastenedly connected also cross after two pieces of driving plates, the second axle sleeve and connector with nut, Second axle sleeve is abutted with two pieces of driving plates between two pieces of driving plates and respectively, and the connector is set in Outside second axle sleeve.The articulated connection of actuator and connector is achieved, the second axle sleeve is for limiting two pieces of driving plates The distance between, the globality of two pieces of driving plates is improved while realizing hinged.

Further, the middle part of two pieces of driving plates is fixedly connected by reinforcing rod.To improve the whole of two pieces of driving plates Body.

Further, the top of the air bag is fixedly connected by U-shaped board with the actuator, the bottom plate of the U-shaped board It is connected with the top of the air bag by fastener, two side plates of the U-shaped board pass through fastener and two pieces of drives respectively Movable plate is connected.

Further, the pantograph bow-lifting device also has a pair of and hinged adjustment plate of the lower arm rod, the tune Whole plate edge is provided with the holding tank for accommodating the wirerope, and threaded hole is provided with adjustment spiral shell in the adjustment plate Bolt, the end abutment of the adjustment bolt is in the lower arm rod.By adjusting the extension elongation of adjustment bolt, adjustable adjustment The position of plate, the difference for adjusting Board position determine the difference of rising bow torque.

The utility model is driven using vertical monosaccate, and structure is different from existing horizontal monosaccate driving device and vertical Double bolloon driving device, vertical monosaccate driving device can provide enough driving forces, in no height for increasing pantograph chassis In the case where degree, the chopper bar height of pantograph is optimized, is conducive to the limit requirement for meeting vehicle；Meanwhile compared to existing skill The actuator quality of art, the utility model is lighter, and structural strength is reliable, and the stress of wirerope is improved, and improves Service life and reliability.

Detailed description of the invention

Fig. 1 is the front view of the utility model pantograph bow-lifting device；

Fig. 2 is the top view of the utility model pantograph bow-lifting device；

Fig. 3 is A-A schematic diagram in Fig. 2；

Fig. 4 is B-B schematic diagram in Fig. 2.

In figure: wirerope 1, adjustment plate 2, air bag 3, actuator 4, U-shaped board 5, arc block 6, connector 7, reinforcing rod 8, method Blue bearing 9, the first axle sleeve 10, bolt 11, nut 12, chassis 13, groove 14, lower arm rod 15, the second axle sleeve 16, adjustment bolt 17。

Specific embodiment

The utility model is described in further detail with reference to the accompanying drawing.

Referring to Fig. 1-4, a kind of pantograph bow-lifting device, including be mounted on chassis air bag 3, actuator 4, connector 7, The top of arc block 6 and wirerope 1, air bag 3 is fixedly connected with actuator 4, and one end of actuator 4 and chassis 13 are hinged, another End is hinged with connector 7, has connecting hole in arc block 6, and connector 7 is fixedly connected by bolt, nut with arc block 6, arc With arc-shaped for accommodating the groove 14 of the wirerope on shape block 6, the middle part of the wirerope 1 is contained in the circular arc In the groove 14 of shape, two ends of the wirerope 1 are fixed on the lower arm rod 15 of pantograph (in order to improve torque, steel wire The end of rope can be fixed on from the fixed block that lower arm rod 15 extends out (Fig. 1)).

Actuator 4 includes two pieces of driving plates being vertically arranged, actuator 4 and the hinged one end of chassis 13, and bolt 11 is simultaneously It is fastenedly connected after two pieces of driving plates, the first axle sleeve 10 and chassis 13 with nut 12, first axle sleeve 10 is located at institute State and abutted between two pieces of driving plates and respectively with two pieces of driving plates, the both ends of first axle sleeve 10 and the chassis 13 it Between be provided with flange bearing 9.Actuator 4 and the hinged one end of connector 7, bolt 11 also cross two pieces of driving plates, Be fastenedly connected after second axle sleeve 16 and connector 7 with nut 12, second axle sleeve 16 be located at two pieces of driving plates it Between and abutted respectively with two pieces of driving plates, the connector 7 is socketed in outside second axle sleeve 16.In two pieces of driving plates Portion is fixedly connected by reinforcing rod 8.It should be noted that the driving plate could alternatively be rod unit.

The top of air bag 3 is fixedly connected by U-shaped board 5 with the actuator 4, the bottom plate and the air bag of the U-shaped board 5 Top by bolt, nut (fastener) be connected, two side plates of the U-shaped board 5 pass through bolt, nut (fastener) respectively It is connected with two pieces of driving plates.

Pantograph bow-lifting device also has a pair of and hinged adjustment plate 2 of the lower arm rod 15, and 2 edge of adjustment plate is set It is equipped with the holding tank for accommodating the steel wire 1, adjustment bolt 17, the tune is provided with by threaded hole in the adjustment plate 2 The end abutment of whole bolt 17 is in the lower arm rod 15.

Air bag 3 is existing mature technology, is to be filled with a level pressure in the sealing space made of rubber or other elastic materials The compressed air of power, the spring acted on using aeroelastic.Have litzendraht wire layer in air bag rubber skin, can increase air bag intensity and Anti-aging property.

3 quantity of air bag has one, and independent role, avoiding the occurrence of double bolloon movement disunity influences the feelings of pantograph performance Condition.Wherein the bottom of air bag 3 is connected by connection bolt, attaching nut and pantograph chassis, and top passes through connection bolt again, connects Connected nut is connect with U-shaped board 5.

After vehicle issues rising bow order, the compressed air of vehicle enters pantograph gas by pantograph valve plate, air hose Capsule is inflated, and actuator 4 is driven to rotate in 3 expansion process of air bag around the hinge joint of actuator 4 and chassis 13, and 4 turns of actuator Band follower link 7 and arc block 6 move upwards during dynamic, and then wirerope 1 is pulled to move, and wirerope 1 produces lower arm rod 15 Raw torque makes pantograph start rising bow so that lower arm rod 15 rotates.When airline pressure reaches valve plate setting value, air bag 3 is pressed Power is no longer increased to guarantee that pantograph contact pressure meets the requirements.After vehicle issues drop bow instruction, pantograph air bags, Under pantograph Gravitative Loads, pantograph starts to drop bow movement.Since connector 7 and actuator 4 use articulated connection mode, so that The movement of wirerope 1 can follow the rotation of actuator 4 naturally, optimize the force-bearing situation of wirerope 1, improve pantograph The service life of bow-lifting device.

The embodiments of the present invention are described above in conjunction with attached drawing, in the absence of conflict, this is practical new The feature in embodiment and embodiment in type can be combined with each other.For sake of convenience, the "upper" that above occurs, "lower" word Sample only indicates consistent with the upper and lower direction of attached drawing itself, does not play restriction effect to structure.The utility model is not limited to Above-mentioned specific embodiment, the above mentioned embodiment is only schematical, rather than limitation, this field it is general Logical technical staff is not departing from the utility model aims and scope of the claimed protection feelings under the enlightenment of the utility model Under condition, many forms can be also made, these are belonged within the protection scope of the utility model.

Claims (6)

1. a kind of pantograph bow-lifting device, including the air bag (3) being mounted on chassis (13), which is characterized in that further include having drive Moving part (4), connector (7), arc block (6) and wirerope (1), the top and the actuator (4) of the air bag (3) are fixed to be connected Connect, one end of the actuator (4) and the chassis (13) hingedly, the other end and the connector (7) hingedly, the arc block (6) it is fixed on the connector (7), with arc-shaped for accommodating the recessed of the wirerope (1) on the arc block (6) Slot (14) is contained in the middle part of the wirerope (1) in the arc-shaped groove (14), two ends of the wirerope (1) Portion is fixed on the lower arm rod (15) of pantograph.

2. a kind of pantograph bow-lifting device according to claim 1, which is characterized in that the actuator (4) includes two pieces The driving plate being vertically arranged, bolt are tight with nut afterwards also cross two pieces of driving plates, the first axle sleeve (10) and chassis (13) It is solidly connected, first axle sleeve (10) abuts with two pieces of driving plates between two pieces of driving plates and respectively, described Chassis (13) is set in first axle sleeve (10) outside, and between the both ends of first axle sleeve (10) and the chassis (13) It is provided with flange bearing (9).

3. a kind of pantograph bow-lifting device according to claim 2, which is characterized in that bolt is also cross two pieces of drives Movable plate, the second axle sleeve (16) and connector (7) are fastenedly connected with nut afterwards, and second axle sleeve (16) is located at described in described two pieces It is abutted between driving plate and respectively with two pieces of driving plates, the connector (7) is set in second axle sleeve (16) outside.

4. a kind of pantograph bow-lifting device according to claim 2, which is characterized in that the middle part of two pieces of driving plates is logical Reinforcing rod (8) is crossed to be fixedly connected.

5. a kind of pantograph bow-lifting device according to claim 2, which is characterized in that pass through U at the top of the air bag (3) Template (5) is fixedly connected with the actuator (4), passes through fastening at the top of the bottom plate of the U-shaped board (5) and the air bag (3) Part is connected, and two side plates of the U-shaped board (5) pass through fastener respectively and are connected with two pieces of driving plates.

6. a kind of pantograph bow-lifting device according to claim 1, which is characterized in that the pantograph bow-lifting device also has There is a pair of and lower arm rod (15) hinged adjustment plate (2), adjustment plate (2) edge is provided with for accommodating the steel wire It restricts the holding tank of (1), is provided with adjustment bolt (17) by threaded hole on the adjustment plate (2), the adjustment bolt (17) End abutment is in the lower arm rod (15).