Be used for track is fastened to system on the rigid base
Technical field
The present invention relates to be used for track is fastened to system on the rigid base, this system comprises: guided plate, and it is used for cross binding and wants fastening track; Flexible member, it is supported on the guided plate and has at least one elastic arm, and described elastic arm applies the elasticity confining force to the bottom of track; And clamping device, it is used to clamp flexible member, thereby in assembling position by wedge-shaped element against the support guided plate, and the bearing surface of this guided plate deviates from track, the bearing surface related with bearing surface guided plate wedge-shaped element forms acute angle with respect to wedge-shaped element with the related bearing surface of stayed surface, the bearing surface related with guided plate has at least one protuberance and/or depressed part, be formed with the protuberance and/or the depressed part of at least one corresponding formation on the related bearing surface of guided plate and bearing surface relevant wedge-shaped element, protuberance on the bearing surface related with guided plate and/or depressed part can be rigidly connected with the protuberance and/or the depressed part of described at least one corresponding formation.
Background technology
In fact the rigid base that system of the present invention is installed is also referred to as " rigid guideway base ".Opposite with the guide rail structure that constitutes on loose ballast aggregate, this rigid base does not have any intrinsic elasticity.Typically, the rigid guideway base is formed by concrete slab, the sleeper that is used for supporting track that layout is formed by concrete pouring on this plate etc.
Usually by bracing or strutting arrangement track laterally is supported on this rigid base, above-mentioned bracing or strutting arrangement is in track bottom and may be apart from the both sides that are positioned at the track bottom between the shoulder of track bottom certain distance lateral arrangement.Usually this shoulder is arranged on each rigid base to support forms such as shoulder for this reason.
Like this, be generally used for that the concrete sleeper that track is fastened on the rigid guideway base is had horizontal shoulder usually, support the guided plate that is used for each track of transverse guidance against horizontal shoulder.These guided plates or directly be fixed on the rigid base perhaps are fixed on each sleeper by suitable fastening (being generally bolt).Known in practice corresponding system for example is " 300 system ".
Fastener also is used to clamp flexible member usually, and this flexible member applies the confining force that points to rigid base to the bottom of wanting fastening track.According to the character of pedestal and used fastener, need additional accessory and securing member correctly to aim at and supporting track.
A kind of like this fastening system has for example been described in German patent DE 10157676A1.By means of the wedge-shaped element that is provided with in this system, can determine that the particular pilot plate is to surface-supported distance.Because the wedge-type shape of wedge-shaped element can move to distance maximum position from guided plate (correspondingly, track) from each minimum position of surface-supported distance with adjusting element without difficulty.Certainly, can select other a plurality of adjustment position between these extreme positions of setting element, wherein each is adjusted the position and limits track another distance to the shoulder surface, correspondingly limits another guide rail width.
The key character of system commonly known in the art is, to such an extent as to the connection between guided plate after the final assembling and adjustment element is to prevent that so firmly these two elements from carrying out arbitrarily unexpected relative motion.Therefore, in known system, the bearing surface associated with each other of wedge-shaped element and guided plate has snap fastener type protuberance and depressed part, this protuberance and depressed part are all vertically arranged with rigid base on assembling position and are engaged with each other, thereby wedge-shaped element positively is connected on the guided plate by protuberance and the depressed part that is engaged with each other.Simultaneously, by the vertical adjustment of protuberance and depressed part, even under the effect of suffered in use longitudinal force and lateral force, wedge-shaped element is also kept its initial position.
Consider to change the possibility of each guided plate within the specific limits, in above-mentioned prior art, must accept the defective of whole system assembly and disassembly inconvenience with respect to each surface-supported position.Specifically, this system need be dismantled fully so that change the position of wedge-shaped element subsequently with reference to the guided plate of the prior art description and the mutual snap fastener locking of wedge-shaped element.In addition, the precision of snap fastener directly influences the accurate adjustment of the position of wedge-shaped element.If the precision of snap fastener is not high, so only can adjust the position of wedge-shaped element with big stride.If the precision of snap fastener is higher, can carry out more accurate adjustment so.Yet have such danger simultaneously: each snap fastener protuberance can not bear the load that produces when using.
Summary of the invention
Under such background, the purpose of this invention is to provide the system of the aforementioned type that can assemble and adjust in simpler mode.
The system of described feature can reach this purpose by adopting according to a first aspect of the invention.Embodied the useful form of this system in others based on a first aspect of the present invention.
As prior art, when adopting system of the present invention, if by bearing surface supporting guide plate along the wedge-shaped element that vertically is wedge shape of wanting fastening track against angular support frame, then can compensate about angular support frame and track or guided plate with make the error relevant with assembling.The also feasible big site error that can proofread and correct angular support frame and guided plate of this wedge-shaped element of layout between guided plate and angular support frame, and do not need the guided plate of adjustment for this purpose and especially.Adopt this arrangement of the present invention, under any circumstance can realize compensation by mobile wedge-shaped element simply.
From this respect, major advantage of the present invention is to have uniform wall thickness and to have the guided plate of the correspondence structure of wedge-shaped element with the standardized way manufacturing.Therefore, in system of the present invention, it is the homogeneous basic configuration of rectangle that guided plate can have when look in the top.
Guided plate is configured to the homogeneous basic configuration not only can makes minimize weight, and allow the Z-TEK that guided plate absorbed is not delivered on the wedge-shaped element equably, and be delivered on the angular support frame from this wedge-shaped element.Because this even loading, guided plate can have especially little and lightweight structure.
In order to guarantee that angular support frame contacts with the best of wedge-shaped element with guided plate, wedge-shaped element have first bearing surface related with guided plate and with the second related bearing surface of angular support frame, second bearing surface and first bearing surface form acute angle.
Actual experiment shows: if the above-mentioned bearing surface of wedge-shaped element forms 5 °-15 ° angle, wedge-shaped element so used according to the invention can obtain especially good effect.
If the bearing surface related with guided plate of wedge-shaped element has at least one protuberance and/or depressed part, on the related bearing surface of guided plate and bearing surface relevant wedge-shaped element, form the protuberance and/or the depressed part of at least one corresponding formation, described at least one protuberance on the bearing surface of wedge-shaped element and/or depressed part can be rigidly connected with the protuberance and/or the depressed part of described at least one corresponding formation, on the position of adjusting separately when using system of the present invention wedge-shaped element can be remained on reliably assembling so.
According to the present invention, this protuberance and/or depressed part are arranged under the assembling condition of wedge-shaped element to extend abreast with the upside of horizontal stiffness pedestal.The horizontal arrangement of protuberance and depressed part makes and can make wedge-shaped element and guided plate not be required to be this dismounting whole system against moving each other in assembling position.When adopting system of the present invention, after the clamping force on acting on guided plate is removed, can mobile immediately wedge-shaped element.
Be surprisingly found out that simultaneously when being fastened on guided plate on the rigid base, thereby wedge-shaped element also is rigidly connected with guided plate self-locking takes place near the portion of being rigidly connected.Because guided plate and wedge-shaped element are assembled into positive engagement each other, and thus guided plate is fastened on the rigid base, therefore, being rigidly connected of wedge-shaped element and guided plate is applied to the caused friction of clamping force on the wedge-shaped element and is connected further and strengthens from guided plate, this prevents that the connection between wedge-shaped element and the guided plate from unclamping automatically.
By protuberance and/or the depressed part more than is set, can strengthen this effect on the bearing surface related with guided plate of wedge-shaped element.
By protuberance is set on guided plate, and this protuberance is being arranged on the assembling position on the free upside of wedge-shaped element, can further strengthen the effect that making wedge-shaped element bear the confining force that comes from the guided plate transmission.
If for the certain tracks vehicle of safety operation on the fastening track of use system of the present invention, then need to make track inclination certain angle, this can use system of the present invention to realize by substrate is set, on rigid base, support and want fastening track by this substrate, this substrate have the contact surface related with rigid base and with the related stayed surface of soffit of wanting fastening track bottom, and stayed surface and contact surface are angled when seeing in cross section.
Specifically, be provided with under the situation of substrate, can guided plate with a side of wanting fastening track association on form protuberance, this protuberance is bonded under assembling condition below substrate or the track bottom.This protuberance prevents that guided plate from lifting especially reliably and in simple mode under disadvantageous service condition.Be provided with resilient middle layer and under the final assembling condition infrabasal plate of system of the present invention is positioned at situation above the intermediate layer, can be formed on the depressed part that engages with protuberance on the assembling position on the intermediate layer for this reason.
On the guiderail base surface of level, that is to say, under the situation that does not have the shoulder that is used for the cross binding guided plate, if the angular support frame that is used for the cross binding guided plate as described below is set, can use so according to fastening system of the present invention, need described guided plate to be used for the transverse guidance track under each situation, described angular support frame can be fixed on the rigid base and has bearing surface by bolt, supports a side that deviates from the track bottom of described guided plate against this bearing surface.In use, angular support frame absorbs the lateral force of sending and being transmitted by guided plate from track.Therefore, adopt this angular support frame on horizontal surface, to assemble fastening system, and do not need to form special-purpose shoulder etc. in simple mode.
The angular support frame that the present invention proposes can be made by steel, and is so especially economical and stable.
Specifically, if angular support frame is made by for example plastic material such as polyolefin or polyamide, the power that can will produce in use in the mode of special economical with materials is passed to rigid base by each securing member so.In addition, make angular support frame, can realize weight reduction significantly by using plastics.
No matter use which kind of material to make angular support frame, can strengthen rib so that can absorb the power that produces in use reliably for angular support frame is provided with.When angular support frame that use is made of plastics,, can further strengthen the intensity of angular support frame so if plastic material comprises fortifying fibre.
If form coarse groove structure on the contact surface of angular support frame and surface-associated rigid base, the power that specific angular support frame absorbed can be delivered to does not especially well so need to prepare especially pedestal for this reason on the rigid base.The cross section of coarse structure can preferably form zigzag, so that each lateral force is delivered on the pedestal especially reliably.Therefore, can on the contact surface of angular support frame, form the linear depressed part that is parallel to the bearing surface extension.
Except the special roughening of the contact surface related of angular support frame or as selecting with rigid base, can be at the friction factor that the intermediate layer is set between the surface of the contact surface of angular support frame and rigid base increases between the surface of the contact surface of angular support frame and rigid base.In order to make assembling simple as far as possible, when prefabricated angular support frame, can the intermediate layer be firmly bonded on the contact surface of angular support frame in advance.
For angular support frame is threaded with rigid base, angular support frame can have the through hole that is used for fastening bolt.If the clamping device of being made by elastic plastic material is provided, this clamping device makes the bolt that inserts through hole be subjected to the opposite reset force of clamping force direction that applies with bolt on assembling position, can carry out the assembling of simple especially and preferred automation so.Clamping device herein directly remains in each through hole with being arranged to preferably retrain.If use this clamping device, just no longer need the lock washer that is generally used for the element of fastening known fastening system and is difficult to usually operate.
In order to make the position of angular support frame used according to the invention adapt to the position of track or suitably to be arranged in the position of the guided plate between track and the angular support frame in simple mode, can arrange on angular support frame to allow that wherein the bearing surface of angular support frame is with respect to the angled layout of the longitudinal axis of track with respect to wanting fastening track with the fastening parts that put in place of angular support frame.These adjustment component can be formed by two through holes that form in angular support frame, can suitably fastening bolt be inserted in the through hole, thereby make a bolt be different from the distance of another bolt to this bearing surface to the distance of the bearing surface of angular support frame.
Equally, for the position that makes angular support frame used according to the invention simply adapts to each position of track, useful is to be provided for adjusting along the direction vertical with the bearing surface of angular support frame the parts of angular support frame position on angular support frame.In practice, these devices may be embodied as eccentric bush or the zigzag packing ring that for example preferably all is made of plastics.Specifically, be provided with under the situation of substrate, can guided plate with a side of wanting fastening track association on be formed on the protuberance that joins on the assembling position below substrate or the track bottom.This protuberance prevents that guided plate from lifting especially reliably and in simple mode under disadvantageous service condition.Being provided with resilient middle layer and being positioned under this situation above resilient middle layer, the depressed part that engages with protuberance on the assembling position can be formed on the intermediate layer at the final assembling condition infrabasal plate of system of the present invention for this reason.
Description of drawings
Below, will illustrate in greater detail the present invention according to the accompanying drawing that exemplary embodiment is shown, wherein:
Fig. 1 illustrates the vertical view of the system that is used for fastening track;
Fig. 2 illustrates the fragmentary sectional elevation view of system shown in Figure 1;
Fig. 3 illustrates the vertical view of the angular support frame that is used for system shown in Figure 1;
Fig. 4 illustrates the biopsy cavity marker devices phantom drawing of angular support frame shown in Figure 3;
Fig. 5 illustrates the enlarged drawing of the A part of Fig. 2.
The specific embodiment
System 1 is used for track 2 is fastened on the firm rigid base 3 that is formed by concrete slab, and this system 1 comprises the elasticity intermediate plate 4 on the continuous horizontal surface 5 that directly is arranged in rigid base 3.
Be furnished with the substrate that is formed from steel 6 that covers intermediate plate 4 on intermediate plate 4, the load that track 2 acts on the substrate 6 of passing through that in use produces when rail vehicle (not shown herein) travels on track 2 is dispersed on the intermediate plate 4.
Another intermediate layer 7 is arranged on the substrate 6.Corresponding to the width of track bottom 8, the soffit of bottom 8 is arranged on the intermediate layer 7 width in intermediate layer 7 at most.
In order to adjust track 2 with respect to the formed required gradients arbitrarily of the horizontal surface 5 of rigid base 3, substrate 6 can have wedge-shaped cross-section, and the upside related with track bottom 8 of substrate 6 is with respect to forming acute angle with the related downside of intermediate plate 4.
The lateral force that produces when travelling in orbit in order to resist vehicle and cross binding track 2 are arranged in guided plate 9,10 both sides of track bottom 8.Guided plate 9,10 has respectively against the stayed surface 11 of track bottom 8, and is arranged on by corresponding support section 11a on the horizontal surface 5 of rigid base 3.
In bottom guided plate 9,10 and surface adjacency rigid base 3, can on the stayed surface 11 of guided plate 9,10, form cam type protuberance (not shown herein), this protuberance extends in the depressed part (not shown equally herein) that the correspondence of elasticity intermediate plate 4 forms, and engages with depressed part below substrate 6.Positively in the vertical direction keeps each guided plate 9,10 by this way, thereby even produce disadvantageous in this longitudinal force FL or lateral force FQ, also can get rid of the possibility that guided plate 9,10 lifts from pedestal 3 reliably.
Free upside at guided plate 9,10, guided plate 9,10 has the shaped profile element in a manner known way, this shaped profile element forms the guiding piece of ω shape tension force anchor clamps 12,13 respectively, and ω shape tension force anchor clamps 12,13 are as the flexible member that track 2 is fastened on the rigid base 3.For fastening clips 12,13, be provided with the device of bolt 14,15 forms, bolt 14,15 screws in the screwed hole (not shown herein) that is arranged in the rigid base 3.In this case, bolt 14,15 passes through their bolt head in a manner known way to the core imposed load of tension force anchor clamps 12,13, and tension force anchor clamps 12,13 apply required elasticity confining force by the arm free end that leans against track bottom 8 upsides to track bottom 8.
By the cross binding that realizes each guided plate 9,10 against the corresponding wedge- shaped element 16,17 of corresponding angular support frame 18,19.
Look from the top, each wedge- shaped element 16,17 has the shape of general triangular, thereby look from the top, on assembling position, the bearing surface 20 related with respective guide plate 9,10 of wedge- shaped element 16,17 extends abreast with track 2, and with respect to the acute angle of 5 °-15 ° of supporting surface 21 formation related with corresponding angular support frame 18,19 of wedge- shaped element 16,17.
Simultaneously, bearing surface 20 tilts with respect to vertical direction, thereby makes that the following contact surface 22 related with rigid base 3 is wideer than the free upside 23 of wedge- shaped element 16,17.
Under each situation, the bearing surface 24 of the relative tilt of each guided plate 9,10 is arranged in parallel with track 2, and related with the bearing surface 20 of wedge-shaped element 16,17.On the bearing surface 24 of the bearing surface 20 of wedge- shaped element 16,17 and guided plate 9,10, be formed with depressed part 25,26 and protuberance 27,28, depressed part 25,26 that corresponds to each other respectively and protuberance 27,28 extend on the width of relevant surfaces 20,24 linearly, thereby make the protuberance 27 of each wedge- shaped element 16,17 engage with the depressed part 26 of respective guide plate 9,10, vice versa.
Between wedge- shaped element 16,17 and respective guide plate 9,10, realize being rigidly connected by this way.Because the clamping force that on guided plate 9,10, applies of each bolt 14,15 and near produce this is rigidly connected portion frictional force is so high, to such an extent as to the generation locking phenomenon is even and can prevent reliably also that under the lateral force condition with higher wedge- shaped element 16,17 initial positions from them from automatic slippage taking place.
Bearing surface 24 from guided plate on each guided plate 9,10 is formed with loading section 29 near the transitional region of guided plate upside, by further helping each guided plate 9,10 is fastened on the corresponding wedge- shaped element 16,17 to the outstanding loading section 29 of the direction of each wedge-shaped element 16,17.In this case, loading section 29 forms and is configured to that pressure P is applied on each wedge- shaped element 16,17 in final assembling and fastening guided plate 9,10.
For wedge- shaped element 16,17 is alignd exactly with respect to relevant guided plate 9,10, on wedge- shaped element 16,17 and guided plate 9,10, mark 30 is set, this feasible concrete relative position of easier grasp.
Each angular support frame 18,19 is made integratedly by fibre reinforced plastics. Angular support frame 18,19 has stayed surface 31, and this stayed surface 31 is against the bearing surface 21 related with stayed surface 31 of each wedge- shaped element 16,17, and the height of stayed surface 31 is greater than the height of wedge-shaped element 16,17.Stayed surface 31 is positioned on the scope of freedom of support section 32 of angular support frame 18,19, and support section 32 is vertically arranged with the bottom 33 on the surface 5 that is positioned at rigid base 3.
Relative with bottom 33, by from the bottom 33 extend and look from the side have three triangular shaped approximate right angle enhancing part 34,35,36 against the bottom 33 supported parts 32, the free upside that strengthens part 34,35,36 begins obliquely to extend down from the upside of support section 32.One of strengthen in the part 34,35,36 the outer ledge place that is positioned at each angular support frame 18,19, another in the above-mentioned enhancing part is positioned at the middle part of each angular support frame 18,19.
Near the free space between the enhancing part 34,35,36, in the bottom 33 of each angular support frame 18,19, form through hole 37,38.The center of these through holes 37,38 is different to the distance of the stayed surface 31 of angular support frame 18,19, thereby when when look in the top, the straight line at the center of connecting through hole 37,38 and stayed surface 31 form sharp angle 2, and this sharp angle 2 just equates with the bearing surface 21 and the bearing surface 20 formed sharp angle 1 of wedge-shaped element 16,17.By this way, can use two screwed holes (not shown herein) that are arranged in the rigid base and are arranged on the straight line that extends abreast with track 2 to come fastening simply each angular support frame 18,19, thereby on the bearing surface 21 related with this stayed surface 31 that makes that the stayed surface 31 of angular support frame 18,19 positively leans against each wedge- shaped element 16,17.
The contact surface that forms on the soffit of bottom 33 of each angular support frame 18,19 is covered by the layer 39 that increases frictional resistance.This layer 39 can comprise such elastomeric material, and this material can directly vulcanize on bottom 33 so that make assembling simple as far as possible, perhaps only arranges as the loose intermediate layer between each angular support frame 18,19 and the rigid base 3 when actual assembled.
Each through hole 37,38 is related with the sleeve 40 of looking from the top to circle, and 33 upside forms and the center of this sleeve and the centrally aligned of through hole 37,38 this sleeve 40 in the bottom.The ring of being made by elastic plastic material 41,42 as clamping device is arranged in each sleeve 40.The height of ring 41,42 is arranged in outside the edge that is projected into each sleeve 40 under the pre-assembled condition herein.
In order to assemble angular support frame 18,19, insert bolt 43,44 in the through hole 37,38 respectively and screw in the screwed hole (not shown herein) that is arranged in the below.In case the bolt head contact resilient ring 41,42 of bolt, extrusion ring 41,42 together in continue screwing in motion, thus make ring 41,42 apply the opposite elastic reset power of clamping force direction that direction and each bolt 43,44 are applied.By this way, even under disadvantageous condition, also can guarantee the reliable maintenance of bolt 43,44 and angular support frame 18,19.
For the zone between the stayed surface 31 related of filling each guided plate 9,10 and angular support frame 18,19 reliably, can move the wedge- shaped element 16,17 that suitably is arranged between relevant angular support frame 18,19 and the respective guide plate 9,10 along track 2 with respective guide plate 9,10.Therefore, unclamp each guided plate 9,10 is fastened on bolt 14,15 on the rigid base 3, till removing self-locking and can move relevant wedge- shaped element 16,17 near the portion that is rigidly connected at each wedge- shaped element 16,17 and each guided plate 9,10.In case the both sides of wedge-shaped element positively lean against on the bearing surface 24 of the bearing surface 31 of each angular support frame 18,19 and each guided plate 9,10, then fastening once more this fastening bolt 14,15 applies required confining force up to 12, the 13 pairs of tracks of each tension force anchor clamps bottom 8 and thereupon till producing self-locking once more between each wedge- shaped element 16,17 and each guided plate 9,10.
By this way, can fastening system 1 be adjusted on the ad-hoc location of track 2 and angular support frame 18,19 in simple especially mode, and not need system 1 to be disassembled into each parts for this reason.