CN204055407U - Based on the Three-freedom-degree hybrid pantograph of two-in-parallel mechanism - Google Patents
Based on the Three-freedom-degree hybrid pantograph of two-in-parallel mechanism Download PDFInfo
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- CN204055407U CN204055407U CN201420468549.9U CN201420468549U CN204055407U CN 204055407 U CN204055407 U CN 204055407U CN 201420468549 U CN201420468549 U CN 201420468549U CN 204055407 U CN204055407 U CN 204055407U
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- parallel
- bracing frame
- slide plate
- pantograph
- bearing pin
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Abstract
The utility model discloses a kind of Three-freedom-degree hybrid pantograph based on two-in-parallel mechanism, comprise base, two-in-parallel bracing frame, longitudinal shock absorber, safe bearing pin, slide plate pillar and slide plate.Centre is provided with circular auxiliary hole in the base, and four angles below base are provided with supporting insulator; Two-in-parallel bracing frame is made up of the identical left bracing frame in parallel of structure, right bracing frame in parallel and middle connecting plate; Two groups of longitudinal shock absorber symmetries are fixedly mounted on middle connecting plate; Safe bearing pin adopts non-metal insulating material, and its lower end and guiding trestle are connected, and its upper end and slide plate pillar are connected, and slide plate is connected with slide plate pillar by screw.The utility model can overcome the technological deficiency of existing pantograph, can not only the carrying in three degree of freedom direction, implementation space and vibration damping, also can avoid the de-generation of bending and scraping the safety misadventures such as net, improve the structural stability of pantograph and the comformability to contact system, also there is the advantages such as working stability is reliable, Operation and Maintenance is convenient.
Description
Technical field
The utility model relates to the electrical equipment of a kind of electric rail car or locomotive operation, particularly a kind of Three-freedom-degree hybrid vibration damping pantograph of three direction equal energy vibration dampings based on two-in-parallel mechanism and in space.
Background technology
Pantograph also claims collector bow, is that electric locomotive is subject to the electrical equipment of power taking energy from contact system, is arranged on roof.Pantograph, as one of the critical component of electric locomotive, plays key role to the high-speed secure smooth operation of vehicle.In high speed train, require very high for the smooth degree between pantograph and contact system, slightly mistake, just easy et out of order.Especially in the operation of motor train unit, pantograph be relied on from contact system to obtain electric power, drive locomotive to advance, once both depart from, locomotive will power-off get out of hand, even likely causes derail.
The pantograph that current electric locomotive uses can be divided into double-arm, single arm type, high low type and the large class of Shi Jin formula four.Wherein, double-arm pantograph also known as " water chestnut " shape pantograph, but now because cost of upkeep is higher, has the risk of pulling apart contact line when adding fault, the rolling stock partly newly dispatched from the factory at present, has used single arm type pantograph instead; Also partial railcar (such as the Shinkansen 300 family car) is had from original double-arm pantograph, to transform single arm type pantograph as.Maximum be the pantograph of " it " (Z) (>) font, its advantage is lower than double-arm pantograph noise, also more not easily pulls apart contact line during fault, is pantograph type more general at present.High low type pantograph is also known as " T " font (being also called wing) pantograph, and the characteristic of its low windage is comparatively applicable to running at high speed, and to reduce noise during driving, is mainly used in high-speed railway vehicle.But because cost is higher, high low type pantograph does not use (changing single arm type pantograph into by high low type pantograph when modern architecture in Japan 500 is transformation).Stone Tianjin formula pantograph is invented in nineteen fifty-one by the 6th generation president of Japanese Okayama electric tracks, Shi Jinlong are auxiliary, is also called " ridge electric-type ", " ridge rail ".Except double-arm, the pantograph of other structure all adopts series-mode frame.
In electrified railway power failure, stoppage in transit accident, accident between pantograph accounts for about 80% of total accident, and it is appreciable that the economic loss caused due to accident between pantograph every year calculates.The bow that the pantograph of current use causes scrapes net or net, and to scrape the accident of bow more serious.Show as, gently then scrape disconnected one and hang device for carrying a tripot and destroy pantograph contact strip, heavy then scrape disconnected contact line conducting wire, catenary, pillar is toppled over, and motorcycle pantograph damages completely, and contact system power failure, cuts off traffic.If under all these accidents occur in some special region environmental conditionss, will bring a lot of difficult and dangerous to repairing.In recent years, for accident between pantograph, although done improvement all to some extent from pantograph to contact system, Technical properties of plant is improved from management, accident between pantograph has certain decline, but due to the structural intrinsic scarce limit of pantograph, does not fundamentally solve the problem.
The pantograph of electric locomotive and the current carrying quality of contact wire depend primarily on the interaction between pantograph and contact system.For ensureing the smooth circulation of traction current, between pantograph and contact wire, certain contact must be had.If bow net contact pressure is too little, contact loss rate can be increased; If too large, can make to produce larger mechanical wear between slide plate and contact wire.The actual contact of bow net is made up of four parts: pantograph bow-lifting device puts on slide plate, and the vertical power made it upwards is Static Contact pressure; Because contact suspension itself exists elastic difference, contact wire can produce rising in various degree under pantograph lifting effect, thus pantograph is in operation generation up-down vibration, make pantograph produce the dynamic touch pressure of a up and down alternation relevant to itself normalized wave function; Be in operation of producing by empty airflow function increases with speed and the aerodynamic force that increases sharply pantograph; The dumping force that each joint of pantograph produces in lifting bow process.In addition, electric locomotive as crosswind, also can produce larger side force to pantograph in operational process.
Tradition pantograph is by the restriction of inherent structure form, and bow, based on the motion of vertical direction, only arranges predetermincd tension and the shock absorber for vibration damping in vertical direction, and do not have shock attenuation unit in vehicle forward direction and side direction.In addition, existing pantograph does not arrange bow disengagement gear, and when bow net occurring and scraping mutually, the scraper plate on bow cannot be thrown off, and this easily causes bow net to scrape accident mutually.Existing pantograph not only structural stability is poor, and safety method when seldom consideration lateral force is scraped mutually with bow net, there is certain potential safety hazard.
Summary of the invention
The purpose of this utility model is the deficiency for existing pantograph technology, provide a kind of all can the Three-freedom-degree hybrid vibration damping pantograph of vibration damping based on two-in-parallel mechanism and on direction, three, space.Technical problem to be solved in the utility model realizes by the following technical solutions.
Based on a Three-freedom-degree hybrid pantograph for two-in-parallel mechanism, comprise base, slide plate, it is characterized in that: also comprise two-in-parallel bracing frame, longitudinal shock absorber, safe bearing pin and slide plate pillar.Described base central authorities are provided with circular auxiliary hole, and four angles below base are provided with the supporting insulator be connected with roof.Described two-in-parallel bracing frame is made up of left bracing frame in parallel, right bracing frame in parallel and middle connecting plate, realizes lifting and the net-fault function of slide plate for support skid, and left bracing frame in parallel is identical with the structure of right bracing frame in parallel and be arranged symmetrically on base.Described longitudinal shock absorber is for realizing the longitudinal damping of pantograph, and described longitudinal shock absorber has two groups and symmetry is fixedly mounted on the middle connecting plate at two-in-parallel bracing frame top.Described safe bearing pin is used for slide plate, slide plate pillar being separated with longitudinal shock absorber when pantograph scrapes online story event; Described safe bearing pin has four, and its bottom and longitudinal shock absorber are connected, and its top and slide plate pillar are connected; Described safe bearing pin adopts non-metal insulating material, and safe bearing pin is stepped shaft, and is provided with safe fault trough in the middle.When scraping online story event, safe bearing pin will from safe fault trough fracture to protect pantograph and the generation avoiding other safety misadventure.The lower end of described slide plate pillar is provided with upper pin mounting hole, and the upper end of safe bearing pin is fixed in the upper pin mounting hole of slide plate pillar by the mode of glueing joint; Described slide plate is connected with slide plate pillar by screw.
Described longitudinal shock absorber is made up of ear seat, pilot bar, spring and guiding trestle, and described ear seat is fixedly mounted on the top end face of middle connecting plate; The two ends of described pilot bar are arranged in ear seat; Often organize longitudinal shock absorber and be provided with two groups of totally four springs, described spring housing on the guide bar and be positioned at the both sides of guiding trestle; The bottom of described guiding trestle is provided with orienting sleeve, and guiding trestle is installed on the guide bar by the orienting sleeve bottom it and along pilot bar slippage, can be formed a moving sets; The top of guiding trestle is provided with lower bearing pin mounting hole, and the lower end of safe bearing pin is fixed in the lower bearing pin mounting hole of guiding trestle by the mode of glueing joint.
Described bracing frame left in parallel is by lower shoe, upper plate and be connected to three side chains that horizontal sliding group, two-stage cylinder or three-stage cylinder between lower shoe, upper plate form and form.Described lower shoe and base are fixed with one; Described upper plate and middle connecting plate are fixed with one; Described horizontal sliding group has three groups, and all adopt Rodless cylinder or hydraulic actuating cylinder, horizontal sliding group is fixedly mounted on lower shoe and forms the first moving sets, and the axis of three groups of horizontal sliding groups is not parallel to each other; Described two-stage cylinder or three-stage cylinder are as the second moving sets on left bracing frame in parallel, the bottom of two-stage cylinder or three-stage cylinder is connected by the first revolute pair with horizontal sliding group, its top is connected by the second revolute pair with upper plate, and the axis of the axis of the first revolute pair and the second revolute pair is parallel to each other.Namely described horizontal sliding group can drive the inside or outside slippage in the bottom of two-stage cylinder or three-stage cylinder, also can use as the shock absorber of horizontal direction.Described two-stage cylinder or three-stage cylinder are mainly used in the lifting realizing upper plate, and then drive the lifting of two-in-parallel bracing frame.
{ the two-in-parallel mechanism of 3PRPR+3PRPR} structure, wherein left bracing frame in parallel is { three translation 3-freedom parallel mechanisms of 3PRPR} structure with right bracing frame in parallel in described two-in-parallel bracing frame employing.It is { the Three-freedom-degree hybrid mechanism of 3PRPR+3PRPR}-P that the moving sets that longitudinal shock absorber is formed forms a structure as the moving sets of connecting together with two-in-parallel bracing frame.
The utility model is placed in the top of electric rail car or locomotive, its working process is: after vehicle pull-in, six two-stage cylinders on two-in-parallel bracing frame or three-stage cylinder extend, in drive, connecting plate, longitudinal shock absorber and slide plate rise, after slide plate is close to grid height, two-stage cylinder or three-stage cylinder stop extending.Then, horizontal sliding group drives the inside slippage in bottom of left bracing frame in parallel, right bracing frame in parallel to rise with the secondary realizing slide plate.After slide plate touches electrical network and reaches setting predetermincd tension, the stop motion of horizontal sliding group, slide plate and electrical network effectively contact and charge simultaneously.After charging, horizontal sliding group drives the bottom of left bracing frame in parallel, right bracing frame in parallel outwards mobile with the decline realizing slide plate, and slide plate and electrical network are effectively thrown off.Then, six two-stage cylinders on two-in-parallel bracing frame or three-stage cylinder retraction, slide plate height reduction, pantograph completes one-stop operation.
The beneficial effects of the utility model are, compared with prior art, the utility model adopts, and { longitudinal shock absorber that the series connection of the two-in-parallel bracing frame of 3PRPR+3PRPR} structure has a straight skidding vibration-damping function forms one, and { the series-parallel connection bracing or strutting arrangement of 3PRPR+3PRPR}-P structure substitutes the linked hoisting mechanism of the cascaded structure of traditional pantograph, slide plate is made to have space three translation three freedom of motions, mainly realize slide plate lifting in the vertical direction, carrying and vibration-damping function, in horizontal surface, both direction can also bear side force and effective vibration damping simultaneously; The setting of safe bearing pin also can be avoided de-bow and scrape the generation of the safety misadventures such as net, improves the structural stability of pantograph and the comformability to contact system, also has the advantages such as working stability is reliable, Operation and Maintenance is convenient.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present utility model;
Fig. 2 is the structural representation of left bracing frame in parallel of the present utility model;
Fig. 3 is the mechanism principle schematic diagram of left bracing frame in parallel of the present utility model;
Fig. 4 is the structural representation of longitudinal shock absorber of the present utility model;
Fig. 5 is the structural representation of the guiding trestle of longitudinal shock absorber of the present utility model;
Fig. 6 is the assembly relation schematic diagram between safe bearing pin of the present utility model and guiding trestle, slide plate pillar.
Detailed description of the invention
The technological means realized to make the utility model, creation characteristic, reaching object and effect is easy to understand, below in conjunction with specific embodiment and diagram, setting forth the utility model further.
As shown in Fig. 1, Fig. 4 and Fig. 6, a kind of Three-freedom-degree hybrid pantograph based on two-in-parallel mechanism, comprises base 1, slide plate 5, it is characterized in that: also comprise two-in-parallel bracing frame 2, longitudinal shock absorber 3, safe bearing pin 4 and slide plate pillar 6.The central authorities of described base 1 are provided with circular auxiliary hole 101, and four angles below base 1 are provided with the supporting insulator 102 be connected with roof.Described two-in-parallel bracing frame 2 is made up of left bracing frame 21 in parallel, right bracing frame 22 in parallel and middle connecting plate 23, realize lifting and the net-fault function of slide plate 5 for support skid 5, left bracing frame 21 in parallel is identical with the structure of right bracing frame 22 in parallel and be arranged symmetrically on base 1.Described longitudinal shock absorber 3 is for realizing the longitudinal damping of pantograph, and described longitudinal shock absorber 3 has two groups and symmetry is fixedly mounted on the middle connecting plate 23 at two-in-parallel bracing frame 2 top.Described safe bearing pin 4 is for scraping online story event during in pantograph, slide plate 5, slide plate pillar 6 are separated with longitudinal shock absorber 3; Described safe bearing pin 4 has four, and its bottom and longitudinal shock absorber 3 are connected, and its top and slide plate pillar 6 are connected; Described safe bearing pin 4 adopts non-metal insulating material, and safe bearing pin 4 is stepped shaft, and is provided with safe fault trough 401 in the middle.When scraping online story event, safe bearing pin 4 will rupture to protect pantograph from safe fault trough 401 and avoid the generation of other safety misadventure.The lower end of described slide plate pillar 6 is provided with upper pin mounting hole 601, and the upper end of safe bearing pin 4 is fixed in the upper pin mounting hole 601 of slide plate pillar 6 by the mode of glueing joint; Described slide plate 5 is connected with slide plate pillar 6 by screw 7.
As shown in Fig. 1, Fig. 4, Fig. 5 and Fig. 6, described longitudinal shock absorber 3 is made up of ear seat 301, pilot bar 302, spring 303 and guiding trestle 304.Described ear seat 301 is fixedly mounted on the top end face of middle connecting plate 23; The two ends of described pilot bar 302 are arranged in ear seat 301; Often organize longitudinal shock absorber 3 and be provided with two groups of totally four springs 303, described spring 303 to be enclosed within pilot bar 302 and to be positioned at the both sides of guiding trestle 304; The bottom of described guiding trestle 304 is provided with orienting sleeve 3041, and guiding trestle 304 is arranged on pilot bar 302 by the orienting sleeve 3041 bottom it also along pilot bar 302 slippage, can form a moving sets; The top of guiding trestle 304 is provided with lower bearing pin mounting hole 3042, and the lower end of safe bearing pin 4 is fixed in the lower bearing pin mounting hole 3042 of guiding trestle 304 by the mode of glueing joint.
As shown in Figure 1, Figure 2 and Figure 3, described bracing frame 21 left in parallel is by lower shoe 201, upper plate 204 and be connected to three side chains that horizontal sliding group 202, two-stage cylinder or three-stage cylinder 203 between lower shoe 201, upper plate 204 form and form.Described lower shoe 201 is fixed with one with base 1; Described upper plate 204 is fixed with one with middle connecting plate 23; Described horizontal sliding group 202 has three groups, and all adopt Rodless cylinder or hydraulic actuating cylinder, horizontal sliding group 202 is fixedly mounted on lower shoe 201 and forms the first moving sets P1, and the axis of three groups of horizontal sliding groups is not parallel to each other; Described two-stage cylinder or three-stage cylinder 203 are as the second moving sets P2 on left bracing frame 21 in parallel, the bottom of two-stage cylinder or three-stage cylinder 203 is connected by the first revolute pair (R1) 205 with horizontal sliding group 202, its top is connected by the second revolute pair (R2) 206 with upper plate 204, and the axis of the axis of the first revolute pair (R1) 205 and the second revolute pair (R2) 206 is parallel to each other.Namely described horizontal sliding group 202 can drive the inside or outside slippage in the bottom of two-stage cylinder or three-stage cylinder 203, also can use as the shock absorber of horizontal direction.Described two-stage cylinder or three-stage cylinder 203 are mainly used in the lifting realizing upper plate 204, and then drive two-in-parallel bracing frame 2 to be elevated.
Described two-in-parallel bracing frame 2 adopts, and { the two-in-parallel mechanism of 3PRPR+3PRPR} structure, wherein left bracing frame in parallel 21 is { three translation 3-freedom parallel mechanisms of 3PRPR} structure with right bracing frame 22 in parallel.It is { the Three-freedom-degree hybrid mechanism of 3PRPR+3PRPR}-P that the moving sets that longitudinal shock absorber 3 is formed forms a structure as the moving sets of connecting together with two-in-parallel bracing frame 2.
During use, the utility model is placed in the top of electric rail car or locomotive.After vehicle pull-in, six two-stage cylinders on two-in-parallel bracing frame 2 or three-stage cylinder 203 extend, and in drive, connecting plate 23, longitudinal shock absorber 3 and slide plate 5 rise, and after slide plate 5 is close to grid height, two-stage cylinder or three-stage cylinder 203 stop extending.Then, horizontal sliding group 202 drives the inside slippage in bottom of left bracing frame in parallel 21, right bracing frame 22 in parallel to rise with the secondary realizing slide plate 5.After slide plate 5 touches electrical network and reaches setting predetermincd tension, horizontal sliding group 202 stop motion, slide plate 5 and electrical network effectively contact and charge simultaneously.After charging, horizontal sliding group 202 drives the bottom of left bracing frame in parallel 21, right bracing frame 22 in parallel outwards mobile with the decline realizing slide plate, and slide plate 5 and electrical network are effectively thrown off.Then, six two-stage cylinders on two-in-parallel bracing frame 2 or three-stage cylinder 203 bounce back, and slide plate 5 height reduction, pantograph completes one-stop operation.
More than show and describe groundwork of the present utility model, principal character and advantage.The technical personnel of the industry should be understood; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and specification sheets just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (2)
1. the Three-freedom-degree hybrid pantograph based on two-in-parallel mechanism, comprise base, slide plate, it is characterized in that: also comprise two-in-parallel bracing frame, longitudinal shock absorber, safe bearing pin and slide plate pillar, described base central authorities are provided with circular auxiliary hole, and four angles below base are provided with supporting insulator; Described two-in-parallel bracing frame is made up of left bracing frame in parallel, right bracing frame in parallel and middle connecting plate, and left bracing frame in parallel is identical with the structure of right bracing frame in parallel and be arranged symmetrically on base; Described longitudinal shock absorber has two groups, and symmetry is fixedly mounted on the middle connecting plate at two-in-parallel bracing frame top; Described safe bearing pin has four, and its bottom and longitudinal shock absorber are connected, and its top and slide plate pillar are connected; Described safe bearing pin adopts non-metal insulating material, and safe bearing pin is stepped shaft, and is provided with safe fault trough in the middle; The lower end of described slide plate pillar is provided with upper pin mounting hole, and the upper end of safe bearing pin is fixed in the upper pin mounting hole of slide plate pillar by the mode of glueing joint; Described slide plate is connected with slide plate pillar by screw;
Described longitudinal shock absorber is made up of ear seat, pilot bar, spring and guiding trestle, and described ear seat is fixedly mounted on the top end face of middle connecting plate; The two ends of described pilot bar are arranged in ear seat; Often organize longitudinal shock absorber and be provided with two groups of totally four springs, described spring housing on the guide bar and be positioned at the both sides of guiding trestle; The bottom of described guiding trestle is provided with orienting sleeve, and guiding trestle is installed on the guide bar by the orienting sleeve bottom it; The top of guiding trestle is provided with lower bearing pin mounting hole, and the lower end of safe bearing pin is fixed in the lower bearing pin mounting hole of guiding trestle by the mode of glueing joint.
2. a kind of Three-freedom-degree hybrid pantograph based on two-in-parallel mechanism according to claim 1, is characterized in that: described bracing frame left in parallel is by lower shoe, upper plate and be connected to three side chains that horizontal sliding group, two-stage cylinder or three-stage cylinder between lower shoe, upper plate form and form; Described lower shoe and base are fixed with one; Described horizontal sliding group has three groups, and all adopt Rodless cylinder or hydraulic actuating cylinder, horizontal sliding group is fixedly mounted on lower shoe, and the axis of three groups of horizontal sliding groups is not parallel to each other; The bottom of two-stage cylinder or three-stage cylinder is connected by the first revolute pair with horizontal sliding group, and its top is connected by the second revolute pair with upper plate, and the axis of the axis of the first revolute pair and the second revolute pair is parallel to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420468549.9U CN204055407U (en) | 2014-08-19 | 2014-08-19 | Based on the Three-freedom-degree hybrid pantograph of two-in-parallel mechanism |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420468549.9U CN204055407U (en) | 2014-08-19 | 2014-08-19 | Based on the Three-freedom-degree hybrid pantograph of two-in-parallel mechanism |
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| CN204055407U true CN204055407U (en) | 2014-12-31 |
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| CN201420468549.9U Withdrawn - After Issue CN204055407U (en) | 2014-08-19 | 2014-08-19 | Based on the Three-freedom-degree hybrid pantograph of two-in-parallel mechanism |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104129307A (en) * | 2014-08-19 | 2014-11-05 | 安徽理工大学 | Three-degree-of-freedom series-parallel pantograph based on double-parallel mechanism |
| CN105128681A (en) * | 2015-10-19 | 2015-12-09 | 中国矿业大学(北京) | High-speed pantograph head with two degrees of freedom |
| DE102016215096A1 (en) * | 2016-08-12 | 2018-02-15 | Siemens Aktiengesellschaft | Pantograph and motor vehicle with such a pantograph |
-
2014
- 2014-08-19 CN CN201420468549.9U patent/CN204055407U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104129307A (en) * | 2014-08-19 | 2014-11-05 | 安徽理工大学 | Three-degree-of-freedom series-parallel pantograph based on double-parallel mechanism |
| CN105128681A (en) * | 2015-10-19 | 2015-12-09 | 中国矿业大学(北京) | High-speed pantograph head with two degrees of freedom |
| DE102016215096A1 (en) * | 2016-08-12 | 2018-02-15 | Siemens Aktiengesellschaft | Pantograph and motor vehicle with such a pantograph |
| DE102016215096B4 (en) | 2016-08-12 | 2023-11-02 | Siemens Mobility GmbH | Pantograph and motor vehicle with such a pantograph |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141231 Effective date of abandoning: 20160210 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |