CN104737403B - Overhead line tension balancer - Google Patents

Overhead line tension balancer Download PDF

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Publication number
CN104737403B
CN104737403B CN201380057070.4A CN201380057070A CN104737403B CN 104737403 B CN104737403 B CN 104737403B CN 201380057070 A CN201380057070 A CN 201380057070A CN 104737403 B CN104737403 B CN 104737403B
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CN
China
Prior art keywords
aforementioned
connecting rod
trolley line
rod arm
linkage
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CN201380057070.4A
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Chinese (zh)
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CN104737403A (en
Inventor
中込正
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NHK Spring Co Ltd
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NHK Spring Co Ltd
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Publication of CN104737403A publication Critical patent/CN104737403A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60MPOWER SUPPLY LINES, AND DEVICES ALONG RAILS, FOR ELECTRICALLY- PROPELLED VEHICLES
    • B60M1/00Power supply lines for contact with collector on vehicle
    • B60M1/12Trolley lines; Accessories therefor
    • B60M1/26Compensation means for variation in length
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02GINSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G7/00Overhead installations of electric lines or cables
    • H02G7/02Devices for adjusting or maintaining mechanical tension, e.g. take-up device

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Suspension Of Electric Lines Or Cables (AREA)
  • Toys (AREA)
  • Springs (AREA)

Abstract

An overhead line tension balancer is configured so that a tension generation means and a link mechanism do not interfere with each other. An overhead line tension balancer is provided with an output shaft (109) which is connected to an overhead line, a coiled spring assembly (140) which, when the output shaft (109) is pulled by the overhead line, generates tension to be applied to the overhead line, and a link member (110) which is provided between the output shaft (109) and the overhead line. The link member (110) has a pair of link arms (111a, 111b) which are arranged at an interval and which can rotate while pulling the overhead line. The overhead line tension balancer is configured so that the coiled spring assembly (140) can be positioned between the pair of link arms (111a, 111b).

Description

Trolley line tension balanced device
Technical field
The present invention relates to the trolley line for giving trolley line pulling force tension balanced device.
Background technology
In patent document 1, disclosing as trolley line tension balanced device makes the construction of spring and linkage combination. In this configuration, spring is stretched by the rotation of linkage, and the tension force produced from spring gives built on stilts via linkage Line.
Patent document 1:The flat 2012-101667 publications of Japanese Laid-Open.
In the above-mentioned trolley line for having used spring and linkage with tension balanced device, the connecting rod machine of spring and rotation The interference of structure becomes problem.In the technology described in patent document 1, although be to have received and kept tension force of spring generating assembly not position In the construction of the scope of linkage activity, but in the case where miniaturization has been sought for space saving, spring and connecting rod The interference of mechanism becomes problem.In this background, it is an object of the invention to provide one kind is in trolley line tension balanced device In do not occur tension force generating assembly and linkage interference construction.
The content of the invention
The trolley line tension balanced device of technical scheme 1 is characterised by possessing:Output shaft, with trolley line It is connected;, there is the tension force for giving aforementioned trolley line when aforementioned output shaft is by aforementioned trolley line drawing in tension force generating assembly;With And linkage, it is installed between aforementioned output shaft and aforementioned trolley line;Aforementioned linkage possesses a pair of the 1st pitman arm Portion, with compartment of terrain configuration, can stretch aforementioned trolley line while rotating, and aforementioned tension force generating assembly can be located at aforementioned Between a pair of the 1st connecting rod arm.
Technology according to the present invention scheme 1, tension force generating assembly can be located at a pair that constitute linkage of the 1st connecting rod Between arm.I.e., the direction from the rotary shaft of a pair of the 1st pitman arm is observed, and can become a pair of rotation of the 1st pitman arm The position relationship overlapped with tension force generating assembly.Therefore, obtained pursuit space saving, and do not occur tension force generating assembly with The construction of the interference of linkage.
2nd technical scheme of the present invention is characterised by that in technical scheme 1, aforementioned linkage has 1st application point, the 2nd application point, and pivot position, the direction observation of the axle rotated from aforementioned a pair of the 1st connecting rod arms, The position that 1st application point overlaps in the 1st connecting rod arm with aforementioned a pair, gives aerial line tension, at the 2nd application point Overlap in the 1st connecting rod arm with aforementioned a pair and leave the position of aforementioned 1st application point, aforementioned output shaft is coupled, should Pivot position is located on the line extended along the direction different from the line for connecting aforementioned 1st application point and aforementioned 2nd application point, Become the pivot of aforementioned linkage.
2nd technical scheme of the invention, if the 1st application point is pulled by trolley line, a pair of the 1st connecting rod arm around Pivot position rotates.Now, the 2nd application point is stretched to the direction drawing that output shaft is pulled away from tension force generating assembly The tension force of trolley line.
Technical scheme 3 is characterised by, in technical scheme 2, before aforementioned linkage possesses A pair of the 1st connecting rod arm, and the 2nd connecting rod arm are stated, 1st connecting rod arm of the 2nd connecting rod arm with aforementioned a pair is combined, edge The direction different from the bearing of trend of aforementioned a pair of the 1st connecting rod arm extends;Aforementioned 2nd application point is located at the position of aforementioned combination Put, the position of aforementioned 2nd application point is left in aforementioned pivot position on aforementioned 2nd connecting rod arm.Here, the 1st connecting rod Arm and the 2nd connecting rod arm both can be directly in conjunction with, it is also possible to combine via other parts.
Technical scheme 4 is characterised by, in technical scheme 3, aforementioned tension force generating assembly tool There is elongate shape, aforementioned output shaft is drawn out from the end of a side of aforementioned tension force generating assembly, aforementioned tension force generating assembly energy It is enough to rotate by pivot of the end of the opposing party.Technology according to the present invention scheme 4, by being pulled by trolley line, connecting rod machine Structure rotates, and then tension force generation part is also rotated with, and output shaft is drawn out from tension force generating assembly.
Technical scheme 5 is characterised by, in technical scheme 3 or 4, aforementioned linkage has Including aforementioned 1st connecting rod arm and the part of the tabular of aforementioned 2nd connecting rod arm.The linkage of the present invention naturally can be by The pitman arm of elongate shape is constituted, but also can be made up of the part of tabular.In this case, wrap as in the part of tabular Construction containing pitman arm, can hold linkage.
Technical scheme 6 is characterised by, in any one of technical scheme 1~5, with integration The part one that part, the part that the aforementioned tension force generating assembly of supporting is rotated freely and supporting aforementioned linkage are rotated freely Change.Technology according to the present invention scheme 6, the tension force that tension force generating assembly occurs is set to the value wanted(Or the model wanted Enclose)Easily.
According to the present invention, there is provided one kind does not occur tension force generating assembly and linkage in trolley line tension balanced device Interference construction.
Description of the drawings
Fig. 1 is the top view of embodiment(A), side view(B)And side fragmentary, perspective view(C);
Fig. 2 is the top view of embodiment(A), side view(B)And side fragmentary, perspective view(C);
Fig. 3 is the top view of embodiment(A), side view(B)And side fragmentary, perspective view(C);
Fig. 4 is the stereogram of the linkage component in embodiment;
Fig. 5 is the top view of embodiment(A)And side view(B);
Fig. 6 is the side view of embodiment(A)And(B);
Fig. 7 is the side view of embodiment;
Fig. 8 is the stereogram of the linkage component for representing other examples.
Description of reference numerals:
100:Trolley line tension balanced device, 101:Outer tube, 102:Spring contacts, 103:Inner core, 104:Outer helical Spring, 105:Spring contacts, 106:Inner side helical spring, 107:Spring contacts, 108:Spring contacts, 109:Output Axle, 110:Linkage component, 110a:L word arms, 110b:Constitute the minor face of L word arms, 110c:The long side of L word arms is constituted, 110d:Connecting portion, 110e:Connecting hole, 110f:Connecting hole, 111a:Pitman arm, 111b:Pitman arm, 111c:Axle portion, 111d:Axle Portion, 112a:Pitman arm, 112b:Pitman arm, 115:Bifilar pitman arm, 116:Trolley line connecting portion, 117:Fixed component, 118: Installing component, 119:Post, 120:Bolt, 121:Axle, 122:Axle, 123:Reinforcement feature, 130:Axle, 131:Fixed component, 132: Installing component, 133:Bolt, 140:Spiral spring assembly unit, 150:Linkage, 161:Installing component, 162:Installing component, 163:Axle, 170:Integration connecting portion, 180:Linkage component, 181:Pitman arm, 182:Pitman arm, 183:Bonded block, 184:Bonded block, 185a:Axle portion part, 185b:Axle portion part, 186a:Connecting hole, 186b:Connecting hole, 190:Linkage component, 191a:Linkage component piece, 191b:Linkage component piece, 193:Axle portion part, 194a:Axle portion, 194b:Axle portion, 195a:Linking arm, 195b:Linking arm, 196:Trolley line connection bar, 197:Bonded block, 198:Side, 199:Side, 200:Trolley line is flat with pulling force Weighing apparatus, 300:Trolley line tension balanced device, 400:Trolley line tension balanced device.
Specific embodiment
1. the 1st embodiment
(Construction)
Fig. 1~Fig. 3 shows trolley line tension balanced device 100.Fig. 1 shows the not additional tension force from trolley line State, even if or the additional tension force of trolley line tension force it is also weak, do not carry out the state of the pull-out of output shaft.And, from Fig. 1 State by trolley line in figure right side direction pull slightly, the state that spring extends slightly is shown in Fig. 2, and then, from Fig. 2's By trolley line, the direction on right side in figure pulls slightly state, and the state that spring further extends slightly is shown in Fig. 3.
Trolley line tension balanced device 100 possesses spiral spring assembly unit 140.Spiral spring assembly unit 140 is the use of The tension force generating assembly of helical spring, in the inner side of cylinder part helical spring is received and kept, if with pull-out output shaft, spiral bullet Spring is compressed, the function of the power that generation retracts output shaft in the presence of its reaction force.In the present embodiment, spiral Spring assembly 140 rotates as described later in action, and inclination angle changes slightly.But configured with approximate horizontal state.In addition, Rotation in this specification refers to Fig. 1(B)And Fig. 1(C)Face in, the rotation i.e. in figure in Z-X planes.This is following It is also identical in explanation.
Spiral spring assembly unit 140 possesses the outer tube 101 and inner core 103 the two cylinder parts configured with coaxial. A side in the axial direction of outer tube 101(Right side in figure)Tip inside be provided with the spring contacts 102 of toroidal.Spring connects Contact portion 102 has the construction of the raised line projected with the direction at the oriented axle center of circular configuration.This is contacted for other springs Portion is also identical.In the inner side of outer tube 101, there is the inner core 103 as the cylindric part of inner side using coaxial harvesting.
Gap is provided between outer tube 101 and inner core 103, outer helical spring 104 is configured with the gap.Outside spiral shell Rotation spring 104 can also be divided in the axial direction multiple.This is also identical for other helical springs.Outer helical spring 104 One end(Right-hand member in figure)Contact with the spring contacts 102 of the inner side of outer tube 101, the other end of outer helical spring 104 (Left end in figure)With the other end for being located at inner core 103(Left side in figure)Outside toroidal spring contacts 105 Contact.There is inner side helical spring 106 in the inner side harvesting of inner core 103.One end of inner side helical spring 106(Right side in figure) Contact with the spring contacts 107 of substantially disc-shape.Spring contacts 107 are the one end for blocking inner core 103(The right side in figure Side)Substantially disc-shape part.The other end of inner side helical spring 106(Left side in figure)With can be in inner core 103 The spring contacts 108 being axially moveable contact.
Spring contacts 108 have substantially disc-shape, feel at ease wherein equipped with output shaft 109.Output shaft 109 is with discrepancy State insertion freely is located at the hole portion at the center of spring contacts 107, its end such as Fig. 1(A)As shown in inner core 103 Axially external protrusion.In the state of output shaft 109 is not pulled out from inner core 103, outer helical spring 104 and inner side spiral bullet Spring 106 is compressed.
Such as by the direction drawing on the right side in figure of output shaft 109, then the direction on the right side in figure of spring contacts 108 is moved It is dynamic, inner side helical spring 106 is further compressed between spring contacts 107.Additionally, now spring contacts 105 to The direction movement on right side, further compresses outer helical spring 104 between spring contacts 102 in figure.And, at this In the presence of the reaction force of compression, output shaft 109 occurs will be to the tension force of left direction movement in figure.
It is more than the summary of spiral spring assembly unit 140.On spiral spring assembly unit 140, connect via linkage 150 It is connected to the trolley line for omitting diagram.Linkage 150 is made up of linkage component 110, coupled bifilar pitman arm 115. The trolley line for omitting diagram is connected with bifilar pitman arm 115, it is additional via linkage 150 from spiral spring assembly unit 140 By the tension force of the direction stretching in trolley line left side in figure.
In the end of the output shaft 109 projected laterally from inner core 103, linkage component is connected with the state for rotating freely 110.Fig. 4 shows linkage component 110.Linkage component 110 has the L word arm 110a of L fonts, connecting portion 110d, pitman arm 111a and 111b.Pitman arm 111a and 111b are of the 1st connecting rod arm of a pair in the present invention.
L word arm 110a are made up of minor face 110b and long side 110c.Long side 110c is the 2nd connecting rod arm in the present invention One.The part that minor face 110b is connected with long side 110c as the present invention in the 2nd application point function.Additionally, short at this While 110b with it is long while the part insertions that are connected of 110c be fixed with the connecting portion 110d of elongate shape.L word arm 110a are fixed on The central part of connecting portion 110d.One end of pitman arm 110a is fixed on one end of connecting portion 110d, and the one of pitman arm 110b End is fixed on the other end of connecting portion 110d.I.e., connecting portion 110d connections pitman arm 111a and 111b.Linkage component 110 has Above-mentioned each part is mutually by fixed construction, the rigidity with its shape of maintenance.
Connecting hole 110e is provided with the tip portion of the minor face 110b of L word arm 110a.Using connecting hole 110e, minor face The end that the tip portion of 110b is connected to output shaft 109 by axle 122 with the state for rotating freely.In L word arm 110a The tip portion of long side 110c be provided with for L word arm 110a to be arranged on into fixed component described later with the state that rotates freely Connecting hole 110f on 131.It is provided with for the state for rotating freely and pitman arm described later in the other end of pitman arm 111a 112a enters axle portion 111c of joining line, is provided with for the state for rotating freely and company described later in the other end of pitman arm 111b Lever arm 112b enters axle portion 111d of joining line.Axle portion 111c and 111d as the present invention in the 1st application point function.
Using connecting hole 110f, L word arms 110a passes through axle 130(With reference to Fig. 1)And be arranged on the state for rotating freely In fixed component 131.According to the construction, as shown in FIG. 1 to 3, linkage component 110 for can relative to fixed component 131 to The state of the direction yaw ground rotation of left and right in figure.Fixed component 131 is integrated with installing component 132, and installing component 132 is by spiral shell Bolt 133 is fixed on post 119.Post 119 is concrete column or metal column.In addition, here is illustrated trolley line tension balanced Device 100 is arranged on the example on post 119, but also trolley line tension balanced device 100 can be arranged on wall or building.
The other end of pitman arm 111a is attached on pitman arm 112a by axle portion 111c with the state for rotating freely.Even The other end of lever arm 111b is attached on pitman arm 112b by axle portion 111d with the state for rotating freely.Such as Fig. 1(A)Institute Show, pitman arm 112a and 112b are constituted and be divided into the bifilar arms portion with the substantially bifilar pitman arm 115 of Y-shaped shape. Reference 123 is to be arranged on connecting rod to keep the interval between the pitman arm 112a and 112b on bifilar pitman arm 115 Reinforcement feature between arm 112a and 112b.The end of the part being combined in pitman arm 112a and 112b(Bifilar company in figure The part of the right-hand member of lever arm 115)It is provided with trolley line connecting portion 116.Connect the right in digraph on trolley line connecting portion 116 To the trolley line of the omission diagram for extending.As trolley line, the power line of representative railway is included, but it is also possible to It is general high-voltage wire or signal wiring etc..Additionally, trolley line can also be the built on stilts of the purposes of do not circulate electric or signal Line.
In the end of the opposing party of outer tube 101(The end in left side in figure)Fixed component 117 is nearby installed.Fixed component 117 states to rotate freely are arranged on installing component 118.Installing component 118 is bolted 120 and is fixed on post 119.Pass through Installing component 118, trolley line is arranged on post 119 with tension balanced device 100.According to the construction, spiral spring assembly unit 140 (Outer tube 101)Be with axle 121 as pivot relative to installing component 118 from Fig. 1(B)And Fig. 1(C)View it is right The state that the part at end can rotate up and down yaw.
In above-described construction, possesses the output shaft 109 being connected with trolley line via linkage 150, in output Axle 109 occurs to give the spiral spring assembly unit 140 of aerial line tension when being pulled out by trolley line, and is installed in output shaft Linkage component 110 between 109 and trolley line, linkage component 110 has following construction:With a pair of pitman arm 111a and There is compartment of terrain to configure for 111b, a pair of the pitman arm 111a and 111b, can stretch trolley line while rotating, spiral bullet Spring assembly 140 can be located between a pair of pitman arm 111a and 111b.
Additionally, the 1st application point for giving aerial line tension is in the position of axle portion 111c and 111d from the direction observation of Y-axis Put.1st application point is in the position overlapped with pitman arm 111a and 111b from the direction observation of Y-axis.Additionally, the 2nd effect Point is connecting portion 111d and the bound fraction of the minor face 110b of composition L word arm 110a.On the 2nd application point, via composition L The minor face 110b of word arm 110a is connected with output shaft 109.Observe from the direction of Y-axis, the 2nd application point is in and pitman arm The position that 111a and 111b overlap, and in leaving the position of above-mentioned 1st application point.And with pivot position (Connecting hole 110f, axle 130), positioned at edge and the line for being connected the 1st application point and the 2nd application point(Pitman arm 111a and 111b prolong The line on direction stretched)On the line that different directions extend, become the pivot of linkage component 110.
Here, the long side 110c for constituting L word arm 110a constitutes the 2nd connecting rod arm.Long side 110c along with as the 1st connecting rod The direction that the bearing of trend of the pitman arm 111a and 111b of arm is different extends.From rotary shaft(Y-axis)Direction observation, the 2nd Application point is located at the bound fraction of the long side 110c as the 2nd connecting rod arm and pitman arm 111a and 111b, in becoming rotation The connecting hole 110f of the heart(Axle 130)The position of the 2nd application point is left on long side 110c.
(Action)
In the state of Fig. 1, the (not shown) of right direction extension being connected with trolley line connecting portion 116 in figure is maked somebody a mere figurehead Line.In this condition, if trolley line (not shown) direction on right side in figure is pulled, bifilar pitman arm 115 is right in figure The direction of side is pulled.Here, bifilar pitman arm 115 in the part of axle portion 111b and 111d with the state that rotates freely and company Lever arm 111a and 111b link, and linkage component 110 can rotate by pivot of axle 130.Therefore, by bifilar pitman arm 115 in figure right side direction be pulled, axle portion 111c, 111d in figure right side direction movement, so as to linkage component 110 with Axle 130 is pivot to being rotated clockwise in figure.That is, axle portion 111c, 111d will in figure right side side To movement, but rotary motion is transformed into by linkage component 110, as a result, axle portion 111c, 111d centered on axle 130 in figure Be rotated clockwise, trolley line connecting portion 116 in figure right side direction movement.
Now, the part of the connecting hole 110e of Fig. 4 is also in the same manner as pitman arm 111c, 111d with axle 130(Connecting hole 110f)For pivot rotation.Therefore, with axle 130 be pivot to Fig. 1(B)In right handed company The movement of hole 110e is connect, the end movement of output shaft 109, output shaft 109 is drawn out along the direction of X-axis.Now, due to outer tube 101 are rotatably supported by the part of axle 121, so with the above-mentioned movement of output shaft 109, outer helical spring 104 Shortened by compression in the axial direction with inner side helical spring 106, in the presence of the power for reacting on the compression, connected with trolley line The tension force of direction-X-direction is endowed on the connected trolley line of socket part 116.
Further, since spiral spring assembly unit 140 can rotate by pivot of axle 121, so in above-mentioned action, The right-hand member of outer tube 101 rotates counterclockwise, and its right-hand member is just moved slightly upward.The process of the migration is shown in Fig. 1 and figure 2.In addition, after linkage component 110 somewhat rotates clockwise in X-Z plane, spiral spring assembly unit The direction of the rotation on 140 top is inverted to clockwise, and its right-hand member is moved downwards slightly.The process be shown in Fig. 2 and Fig. 3.In the state of Fig. 3, further the direction on right side is pulled output shaft 109 in figure, outer helical spring 104 and inner side Helical spring 106 is further compressed in the axial direction.
(Superiority)
As shown in FIG. 1 to 3, during action, a part for outer tube 101 and the pitman arm as linkage 111a, 111b and pitman arm 112a, 112b are not interfered, and allow to become from the direction of side(From the visual angle of Y-axis)See Examine the position relationship for overlapping.I.e., during action, outer helical spring 104 and inner side helical spring 106, with Do not interfere as pitman arm 111a, 111b and pitman arm 112a, 112b of linkage, allow to become from the side of side To the position relationship that observation overlaps.Therefore, it is possible to the size in the axial direction for shortening trolley line tension balanced device 100.
Additionally, by obtaining that the superiority of the size in the axial direction of trolley line tension balanced device 100 can be shortened, and add Long connecting rod arm 111a, 111b and long side 110c, it can be ensured that the stroke of output shaft 109 is longer.In addition, conduct guarantees output shaft The longer method of 109 stroke, can be using only lengthening pitman arm 111a, 111b, or the method for only lengthening long side 110c.
(With the comparison of comparative example)
As comparative example, it is considered to be impermissible for becoming from the direction of side and observe outer helical spring 104 and inner side spiral Spring 106, the structure of the position relationship overlapped with pitman arm 111a, 111b and pitman arm 112a, 112b as linkage Make.In the comparative example, in order to avoid both interference, it is necessary to fixed component 131 is further extended to the direction of X-axis, is made More leave post 119 in the position of axle 130.But, if so, the then size increase in the overall X-direction of device, additionally, weight Amount also increases because corresponding with the increase of its size.
Additionally, as observe Fig. 1~Fig. 3 migration known to, in order that the stroke length of output shaft 109, win it is defeated Displacement in the axial direction of shaft 109, as long as lengthening the length of pitman arm 111a and 111b, even if being this structure Make, in the construction shown in Fig. 1~3, the size in figure on left and right directions does not also increase.In contrast, in above-mentioned comparative example In the case of, corresponding to the length for lengthening pitman arm 111a and 111b, it is necessary to which the position for making axle 130 moves to and leaves post 119 Position, the increase of size and the increase of weight more come to the surface.
2. the 2nd embodiment
(Construction)
Fig. 5 shows trolley line tension balanced device 200.Trolley line is drawn with the trolley line of tension balanced device 200 and Fig. 1 Force equalizer 100 is different with the design of linkage.Trolley line tension balanced device 200 possesses linkage component 190.Linkage component 190 linkage components with the part that the tabular as roughly triangular shape is combined by axle portion part 193 and bonded block 197 The construction of piece 191a and 191b.The top of output shaft 109 is connected to the central authorities of bonded block 197 with the state for rotating freely. Axle portion part 193 is the axle portion part being arranged on for the state by linkage component 190 to rotate freely in fixed component 131.Connecting rod Part 191 can rotate by pivot of axle portion part 193 in X-Z plane.
Linkage component 190 is connected in the part of axle portion 194a, 194b with the state that rotates freely and linking arm 195a, 195b Connect.Trolley line connection bar 196 is connected near the top of linking arm 195a, 195b, in the trolley line connection central authorities of bar 196 It is connected with the trolley line for omitting diagram.Here, from Fig. 5(B)View, the part of axle portion 194a is the 1st work of the present invention With point, the part of bonded block 197 is the 2nd application point of the present invention, and the part of axle portion part 193 becomes the connecting rod machine in the present invention The pivot position of structure.
Additionally, in the case where linkage component piece 191a is conceived to, a side of the side 198 equivalent to the 1st connecting rod arm(It is another Side is the corresponding side of linkage component piece 191b), a side of the side 199 equivalent to the 2nd connecting rod arm(The opposing party is linkage component piece The corresponding side of 191b).This be configured to regard as pitman arm 111a that Fig. 1 has been imbedded in linkage component piece 191a, 191b or 111b so imbedded Fig. 8 pitman arm 181,182 construction.
(Action)
If the trolley line that linking arm 195a, 195b are connected the omission diagram being connected with bar 196 with trolley line is right in figure The direction drawing of side, then linkage component piece 191a, 191b are pivot to Fig. 5 with axle portion part 193(B)Middle clockwise direction rotation Turn.With the action, bonded block 197 similarly rotates, and output shaft 109 to the direction of X-axis is drawn out.Additionally, now spiral shell Rotation spring assembly 140 is somewhat rotated with axle 121 as pivot.Additionally, during the action, spiral spring assembly unit 140 relatively by the gap between linkage component piece 191a and 191b.
3. the 3rd embodiment
(Structure)
Fig. 6 shows trolley line tension balanced device 300.Fig. 6(A)Figure is omitted for trolley line tension balanced device 300 Stage before the direction stretching on the trolley line for showing right side in figure, Fig. 6(B)It is trolley line tension balanced device 300 from Fig. 6(A) State be omitted the trolley line of diagram in figure right side direction stretching, bifilar pitman arm 115 in figure right side direction move Dynamic state.
Trolley line tension balanced device 300 generally longitudinal configures tension force generating assembly, makes output shaft 109 from helical spring Assembly 140 is prominent to the top of general vertical.In addition, reference is illustrated in association with Fig. 1 identicals part and with Fig. 1 Part it is identical.Trolley line tension balanced device 300 possesses the spiral spring assembly unit 140 for approximately longitudinally configuring.Helical spring The side that the output shaft 109 of assembly 140 is not projected(Bottom side in figure)End pass through shape of the axle 163 to rotate freely State is arranged on and is fixed on the installing component 162 on post 119.
Output shaft 109 is arranged on linkage component 110 with the state same with the situation of Fig. 1 with the state for rotating freely. The composition L word arm 110a of linkage component 110(With reference to Fig. 4)The end of long side 110c rotatably installed by axle 130 On installing component 161, and the installing component 161 is arranged on post 119.According to the construction, linkage component 110 is with axle 130 Pivot rotates.
On linkage component 110, bifilar pitman arm is rotatably provided with by the construction same with the situation of Fig. 1 115, it is connected with the trolley line connecting portion 116 of bifilar pitman arm 115 and omits what the direction on right side along figure for illustrating extended Trolley line.
(Action)
In Fig. 6(A)In the state of, if bifilar pitman arm 115 is connected the omission diagram on trolley line connecting portion 116 The direction drawing on trolley line right side in figure, then counterclockwise revolve during linkage component 110 is with axle 130 as pivot to figure Turn.Now, the output shaft 109 being connected with linkage component 110 is drawn out from spiral spring assembly unit 140, to Fig. 6(B)Shape State is shifted.
In Fig. 6(A)→ Fig. 6(B)During, spiral spring assembly unit 140 rotates by pivot of axle 163, with this Meanwhile, output shaft 109 is drawn out from spiral spring assembly unit 140.By output shaft 109 from spiral spring assembly unit 140 It is drawn out, linkage component 110 is made to right handed power in figure from the effect of spiral spring assembly unit 140, occurring will The tension force of the direction stretching in trolley line left side in figure of the omission diagram being connected with trolley line connecting portion 116.
(Other)
Fig. 6 shows the state for being generally perpendicularly configured with spiral spring assembly unit, but can also combine helical spring Body 140 is obliquely configured.That is, outer tube 101 can arbitrarily set with vertical direction angulation.Additionally it is possible to It is to make configuration, the i.e. output shaft 109 for spinning upside down dash forward from spiral spring assembly unit 140 to vertical lower section compared with the situation of Fig. 6 The form for going out.
4. the 4th embodiment
Fig. 7 shows trolley line tension balanced device 400.Trolley line tension balanced device 400 is characterised by, in Fig. 1 Trolley line with tension balanced device 100, being by one trolley line connecting portion 170 that installing component 118 and 132 is integrated Construction.
As knowable to comparing Fig. 1~Fig. 3, if making the interval variation between installing component 118 and 132, linkage component 110 rotation position change, corresponding thereto, output shaft 109 changes from the prominent length of spiral spring assembly unit 140.If defeated Shaft 109 is different from the prominent length of spiral spring assembly unit 140, then be also naturally difference from the tension force of the effect of output shaft 109 Value.Thus, for example having to for the tension force acted on to trolley line to be set to specific value in the early stage under state(Or specific model The value enclosed)In the case of etc., it is necessary to make installing component 118 and 132 at intervals of specific value.In fact, the He of installing component 118 132 interval has been designated as specific value, and in construction, operator is adjusted the interval between installing component 118 and 132 Operation.
In contrast, in the construction shown in Fig. 7, due to by integration connecting portion 170, installing component 118 and 132 Interval be preset to specific value, it is possible to the operation for making above-mentioned operator is simplified.In addition, both can be logical Cross integration connecting portion 170 to connect by the construction of the integration of installing component 118 and 132, or by integration in advance Portion 170 links the construction of integration connecting portion 170 and installing component 118 and 132 in operation as other parts.
5. the 5th embodiment
Expression obtains of the other designs of linkage component of the function same with the linkage component 110 shown in Fig. 4.Figure 8 show linkage component 180.Linkage component 180 has the connecting rod that substantially L fonts are combined by bonded block 183 and 184 The construction of arm 181 and 182.In linkage component 180, axle portion 111d and 111c of axle portion 185a and 185b and Fig. 1 is same Ground is used as the 1st application point function.Additionally, in the central portion of bonded block 183, having output with the combinations of states for rotating freely Axle 109, the part is used as the 2nd application point function.And, connecting hole 186a, 186b are relative with the connecting hole 110f of Fig. 4 Should, linkage component 180 rotates by pivot of the part.
6. other
The tension force that Fig. 1~Fig. 3 illustrates two helical springs using coaxial, carry out flexible form with two benches is sent out The example of raw component.However, it is also possible to be the form of the helical spring of more than three that use coaxial.Additionally it is possible to be Only using the construction of a helical spring.
In embodiments, as tension force generating assembly, exemplified with being drawn out by output shaft, helical spring is compressed, Output shaft is retracted using the reaction force relative to the compression, so as to give the form of aerial line tension.As can be The tension force generating assembly utilized in the present invention is not limited in above-mentioned form, also includes being drawn out by output shaft, spiral bullet Spring extends, and output shaft is retracted using the reaction force relative to the elongation, so as to give the form of aerial line tension.Additionally, It can also be the knot that tension force is produced by the elastic force generating assembly beyond air pressure or the helical spring such as oil pressure or leaf spring or disc spring Structure.
The present invention can be utilized in trolley line tension balanced device.

Claims (4)

1. a kind of trolley line tension balanced device, possesses:Output shaft, is connected with trolley line;Tension force generating assembly, in aforementioned output Axle gives aforementioned aerial line tension when being pulled by aforementioned trolley line;And linkage, be installed in aforementioned output shaft with it is aforementioned Between trolley line;
Characterized in that,
Aforementioned linkage possesses a pair of the 1st connecting rod arm, is also equipped with the 2nd connecting rod arm,
There is aforementioned a pair of the 1st connecting rod arm compartment of terrain to configure, and can stretch aforementioned trolley line while rotating,
1st connecting rod arm of the aforementioned 2nd connecting rod arm with aforementioned a pair is combined, and edge is prolonged with aforementioned a pair of the 1st connecting rod arm Stretch the different direction in direction to extend,
Also, aforementioned linkage has the 1st application point, the 2nd application point and pivot position,
The direction observation of the axle rotated from aforementioned a pair of the 1st connecting rod arms, the 1st application point is in the 1st with aforementioned a pair The position that connecting rod arm overlaps, gives aerial line tension, and the 2nd application point overlaps in the 1st connecting rod arm with aforementioned a pair And leave the position of aforementioned 1st application point, aforementioned output shaft is connected with the 2nd application point, the pivot position be located at along with Connect on the line that the aforementioned 1st application point direction different with the line of aforementioned 2nd application point extends, before the pivot position becomes The pivot of linkage is stated,
And, aforementioned 2nd application point is located at the position that aforementioned a pair of the 1st connecting rod arm is combined with aforementioned 2nd connecting rod arm,
The position of aforementioned 2nd application point is left in aforementioned pivot position on aforementioned 2nd connecting rod arm,
Aforementioned tension force generating assembly can be located between aforementioned a pair of the 1st connecting rod arm.
2. trolley line as claimed in claim 1 tension balanced device, it is characterised in that
Aforementioned tension force generating assembly has elongate shape,
Aforementioned output shaft is drawn out from the end of a side of aforementioned tension force generating assembly,
Aforementioned tension force generating assembly can rotate by pivot of the end of the opposing party.
3. trolley line as claimed in claim 1 tension balanced device, it is characterised in that
Aforementioned linkage has the part of the tabular for including aforementioned 1st connecting rod arm and aforementioned 2nd connecting rod arm.
4. trolley line as claimed in claim 1 tension balanced device, it is characterised in that
With unitary member, the part and supporting that the unitary member rotates freely the aforementioned tension force generating assembly of supporting is aforementioned The part integration that linkage is rotated freely.
CN201380057070.4A 2012-10-30 2013-10-16 Overhead line tension balancer Active CN104737403B (en)

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JP2012239376A JP5985356B2 (en) 2012-10-30 2012-10-30 Tension balancer for overhead wire
JP2012-239376 2012-10-30
PCT/JP2013/078082 WO2014069237A1 (en) 2012-10-30 2013-10-16 Overhead line tension balancer

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CN104737403A (en) 2015-06-24
JP2014088109A (en) 2014-05-15
WO2014069237A1 (en) 2014-05-08

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