CN203625771U - Modular comb plate expansion device - Google Patents
Modular comb plate expansion device Download PDFInfo
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- CN203625771U CN203625771U CN201320885441.5U CN201320885441U CN203625771U CN 203625771 U CN203625771 U CN 203625771U CN 201320885441 U CN201320885441 U CN 201320885441U CN 203625771 U CN203625771 U CN 203625771U
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Abstract
The utility model belongs to the technical field of expansion devices, and discloses a modular comb plate expansion device. The modular comb plate expansion device is mainly and technically characterized by comprising side beam deformed steels, middle beam deformed steels, side beam comb plates and middle beam comb plates, waterproof rubber strips and plate springs are arranged between each side beam deformed steel and the corresponding middle beam deformed steel and between two adjacent middle beam deformed steels respectively, displacement control boxes with beams are arranged at the bottoms of the side beam deformed steels, compressing supports and pressure-bearing supports are arranged on the upper surfaces and the lower surfaces of the beams in the displacement control boxes respectively, limiting supports are arranged on the side surfaces of the beams in the displacement control boxes, brackets are arranged at the bottoms of the middle beam deformed steels, the beams penetrate the brackets, and compressing supports and pressure-bearing supports are arranged among the brackets and the beams and among the beams and the middle beam deformed steels respectively. The modular comb plate expansion device meets changing requirements of expansion displacement of bridges and is easy to replace, safe and reliable, bump is prevented, and cleaning is omitted.
Description
Technical field
The utility model belongs to bridge extension joint technical field, relates in particular to a kind of modulus type comb plate stretching device.
Background technology
In the use procedure of bridge extension joint, relatively more conventional is modular expansion device and comb plate stretching device.The modular expansion device generally using is made up of side bar, central sill, crossbeam and interlinked mechanism, in running, easily there is to jump car phenomenon, because gap between shaped steel is large, service brake frequent impact shaped steel is easily destroyed, easily laying dust of water proof rubber bar top in use procedure.In addition, after damage parts, need to block traffic, whole piece stretching device is taken out and could be changed, change trouble.The board-like stretching device of broach using at present, using more is great-leap-forward toothed plate type stretching device, although this structure stretching device has solved modular expansion device and has jumped car deficiency, but the deficiency of comb plate stretching device maximum is bridge telescopic displacement to be completed by the relative variation of a whole piece comb teeth bar length, especially the stretching device of big displacement quantity, the tooth bar of comb plate is carefully grown, along bridge, clearance groove is longer along the bridge at phase road pavement place, cause stretching device laying dust serious, and, in this kind of stretching device use procedure, the possibility of thin and long comb plate tooth bar fatigue fracture owing to being subject to frequent load vibratory impulse.In addition, if tooth plate tooth can not get timely replacing after fractureing, gap is long and wide herein, exist the thin type tire such as bicycle, motorcycle, electric motor car by time the potential danger that has an accident.
Utility model content
The technical problems to be solved in the utility model is just to provide a kind of anti-jump car, exempt from cleaning, easily change, safe and reliable modulus type comb plate stretching device.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: comprise paired side bar deformed steel and at least one central sill deformed steel of being arranged between bridge end shrinkage joint, between side bar deformed steel and central sill deformed steel and between adjacent two central sill deformed steels, be respectively arranged with water proof rubber bar, side bar deformed steel, above central sill deformed steel, be respectively arranged with side bar comb plate, central sill comb plate, side bar comb plate, central sill comb plate is arranged with stainless steel slide plate, between described side bar deformed steel and central sill deformed steel and between adjacent two central sill deformed steels, be respectively arranged with leaf spring, side bar deformed steel bottom is provided with the displacement controlling box with crossbeam, in displacement controlling box, crossbeam is upper, be respectively equipped with compressing support below, bearing, in displacement controlling box, the side of crossbeam is provided with spacing bearing, central sill deformed steel bottom is provided with crossbeam and runs through the bracket passing through, between bracket and crossbeam, between crossbeam and central sill deformed steel, be respectively equipped with compressing support, bearing.
Its additional technical feature is: described leaf spring is connected with central sill deformed steel with side bar deformed steel by the first fastening bolt, the leaf spring arranging between side bar deformed steel and central sill deformed steel and between adjacent two central sill deformed steels is the special-shaped leaf spring that arranges in pairs or be integrated, leaf spring cross section is rectangle, trapezoidal or other polygon, and leaf spring is organized setting along stretching device length direction more;
Described side bar comb plate, central sill comb plate arrange polylith respectively on side bar deformed steel, central sill deformed steel, side bar comb plate, central sill comb plate and side bar deformed steel, central sill deformed steel fix by the second fastening bolt, the profile of tooth of broach of side bar comb plate inner side and the profile of tooth of the broach of central sill comb plate both sides are waveform, trapezoidal, triangle or rectangle, the increment top of broach is provided with certain gradient, the mutual transpostion interval setting of adjacent fingers;
The second described fastening bolt is single or double, and when the second fastening bolt is single, the end face of side bar deformed steel, central sill deformed steel has the groove of the built-in locating piece matching with the second fastening bolt;
The cross section of described side bar deformed steel, central sill deformed steel is I-shaped;
The two ends of described water proof rubber bar are provided with grip block, grip block embeds in the draw-in groove at side bar deformed steel, central sill deformed steel top, the end face at water proof rubber bar middle part is that plane, bottom are sealing or nonocclusive die cavity, and die cavity cross section is elliptical aperture, circular apertures or polygonal hole;
Above described water proof rubber bar two ends, be provided with fixation steel plate, fixation steel plate fixes by the 3rd fastening bolt and side bar deformed steel, central sill deformed steel, and stainless steel slide plate is attached on fixation steel plate;
Described bearing, spacing bearing are made up of rubber layer and steel plate, its inside is ball-type, compressing support is made up of rubber layer and built-in plane steel plate, the contact surface of bearing, spacing bearing, compressing support and crossbeam is pasted with respectively slide plate layer, spacing bearing arranges in pairs, and bearing and compressing support arrange in pairs;
Described bracket is U-shaped, and bracket fixes by the 4th fastening bolt and central sill deformed steel, between bracket and central sill deformed steel, is provided with clamping pad.
Modulus type comb plate stretching device provided by the utility model, for space, bridge beam end shrinkage joint.Between side bar deformed steel and central sill deformed steel and between adjacent two central sill deformed steels, be respectively arranged with water proof rubber bar and leaf spring, side bar deformed steel bottom is provided with the displacement controlling box with crossbeam, in displacement controlling box, the above and below of crossbeam is respectively equipped with compressing support, bearing, in displacement controlling box, the side of crossbeam is provided with spacing bearing, central sill deformed steel bottom is provided with crossbeam and runs through the bracket passing through, between bracket and crossbeam, be respectively equipped with compressing support, bearing between crossbeam and central sill deformed steel.Flexible by side bar deformed steel and central sill deformed steel on crossbeam between two displacement controlling boxes, meets the demand that bridge telescopic displacement changes.
Leaf spring is connected with central sill deformed steel with side bar deformed steel by the first fastening bolt, the leaf spring arranging between side bar deformed steel and central sill deformed steel and between adjacent two central sill deformed steels is the special-shaped leaf spring that arranges in pairs or be integrated, and leaf spring is organized setting along stretching device length direction more.This structure design, leaf spring, in compression stretching process, without other drag effect, is convenient to that stretching device is stretched, in compression process, and each deformed steel gap is even, goes wrong and is convenient to change.As required, leaf spring cross section is rectangle, trapezoidal or other polygon.
Side bar comb plate, central sill comb plate arrange polylith respectively on side bar deformed steel, central sill deformed steel, side bar comb plate, central sill comb plate and side bar deformed steel, central sill deformed steel fix by the second fastening bolt, be convenient to like this remove and install, damaging appears in every group of comb plate, can dismantle separately, install, not affect the use operation of whole stretching device.The increment top of broach is provided with certain gradient, is convenient to the interior dust rubbish of Automatic clearance groove in modulus type comb plate stretching device telescopic process, realizes dust rubbish in stretching device use procedure middle slot and exempts from cleaning.The mutual transpostion interval setting of adjacent fingers, vehicle is steadily comfortable while passing through, occurs without jumping car phenomenon.According to different demands, the profile of tooth of broach of side bar comb plate inner side and the profile of tooth of the broach of central sill comb plate both sides are waveform, trapezoidal, triangle or rectangle.
For preventing that side bar comb plate in stretching device use procedure, central sill comb plate from becoming flexible and perk, the second fastening bolt is single or double.The second fastening bolt is single while arranging, side bar comb plate, central sill comb plate below, the end face of side bar deformed steel, central sill deformed steel has the groove of the built-in locating piece matching with the second fastening bolt, locating piece is cylinder, cone or other polygonal body, and the second fastening bolt is fixed together with side bar deformed steel, central sill deformed steel respectively by locating piece.The second fastening bolt is double while arranging, groove need not built-in locating piece, make full use of at 3 and determine the geometrical principles of planes, realize side bar comb plate, central sill comb plate stability is fastening, side bar comb plate, central sill comb plate are connected more firm with side bar deformed steel, central sill deformed steel.Side bar comb plate, central sill comb plate are designed to bolt and fix, and are convenient to maintenance, change.
The cross section of side bar deformed steel, central sill deformed steel is I-shaped, has both guaranteed the performance requirement of required engineering structures, again more easy to process than king font, save raw material, be convenient to leaf spring install.
The two ends of water proof rubber bar are provided with grip block, and grip block vertically embeds in the draw-in groove at side bar deformed steel, central sill deformed steel top, firmly convenient, are convenient to install.The end face at water proof rubber bar middle part is that plane, bottom are sealing or nonocclusive die cavity, die cavity cross section is elliptical aperture, circular apertures or polygonal hole, adopt elliptical aperture die cavity, water proof rubber bar die cavity is stressed strong, stretching device is in stretching operation process, water proof rubber bar upper surface is closely connected with comb plate bottom surface all the time, prevents ponding, laying dust above broach board slot place water proof rubber bar.
Above water proof rubber bar two ends, be provided with fixation steel plate, fixation steel plate fixes by the 3rd fastening bolt and side bar deformed steel, central sill deformed steel, and stainless steel slide plate is attached on fixation steel plate.Stainless steel slide plate reduces the displacement friction factor of side bar comb plate, central sill comb plate, and fixation steel plate is pressed on water proof rubber bar on side bar deformed steel, central sill deformed steel, and water proof rubber bar chucking power strengthens, difficult drop-off.
Bearing, spacing bearing are made up of rubber layer and steel plate, its inside is ball-type, compressing support is made up of rubber layer and built-in plane steel plate, the contact surface of bearing, spacing bearing, compressing support and crossbeam is pasted with respectively slide plate layer, bearing and compressing support arrange in pairs, utilize the feature of rubber damping and the comprehensive free rotary of spheroid, while realizing braking impact, there is certain buffer shock-absorbing effect, meet stretching device multi-directional deflection and torsional deflection function needs.Spacing bearing is that ball convex surface arranges relatively in pairs, realizes stretching device along crossbeam axial direction free-extension, to meet stretching device displacement request.In the time that stretching device has multi-faceted dislocation demand, the spacing bearing that crossbeam arranges relatively in pairs by ball convex surface meets functional requirement.
Bracket is U-shaped, and bracket fixes by the 4th fastening bolt and central sill deformed steel, between bracket and central sill deformed steel, is provided with clamping pad.Clamping pad material is rubber, polyurethane elastomeric material.Because vehicle is braked impact frequently, bracket and central sill may become flexible, and cause generation between bearing, crossbeam and the compressing support in bracket relatively clash into and cause stretching device to damage.Clamping pad has played and has loosened adjusting fastening effect, guarantees stretching device security of operation.
Accompanying drawing explanation
Fig. 1 is the cross-sectional configuration schematic diagram of the first structure of the utility model modulus type comb plate stretching device;
Fig. 2 is the horizontal plane mounting structure schematic diagram of the first structure of modulus type comb plate stretching device;
Fig. 3 is the structural representation of bracket;
Fig. 4 is the first structural representation of leaf spring;
Fig. 5 is the second structural representation of leaf spring;
Fig. 6 is the structural representation of spacing bearing;
Fig. 7 is the structural representation of bearing;
The first structural representation of Fig. 8 when to be that the second fastening bolt is single arrange;
The second structural representation of Fig. 9 when to be that the second fastening bolt is single arrange;
Figure 10 is the cross-sectional configuration schematic diagram of the second structure of modulus type comb plate stretching device;
Figure 11 is the horizontal plane mounting structure schematic diagram of the second structure of modulus type comb plate stretching device;
The structural representation of Figure 12 when to be that the second fastening bolt is double arrange.
The specific embodiment
Below in conjunction with accompanying drawing, the structure of modulus type comb plate stretching device provided by the utility model is described further.
As shown in Figure 1, the utility model modulus type comb plate stretching device comprises paired side bar deformed steel 1 and at least one central sill deformed steel 2 of being arranged between bridge end shrinkage joint, side bar deformed steel 1, the cross section of central sill deformed steel 2 is I-shaped, between side bar deformed steel 1 and central sill deformed steel 2 and between adjacent two central sill deformed steels 2, be respectively arranged with water proof rubber bar 3, leaf spring 4, side bar deformed steel 1, central sill deformed steel 2 is respectively arranged with side bar comb plate 5 above, central sill comb plate 6, side bar comb plate 5, central sill comb plate 6 and side bar deformed steel 1, central sill deformed steel 2 fixes by the second fastening bolt 7, side bar deformed steel 1 bottom is provided with the displacement controlling box 9 with crossbeam 8, the interior crossbeam 8 of displacement controlling box 9 upper, be respectively equipped with compressing support 10 below, bearing 11, central sill deformed steel 2 bottoms are provided with crossbeam 8 and run through the bracket 12 passing through, between bracket 12 and crossbeam 8, between crossbeam 8 and central sill deformed steel 2, be respectively equipped with compressing support 10, bearing 11.
As shown in Figure 2, between side bar deformed steel 1 and central sill deformed steel 2 and between adjacent two central sill deformed steels 2, be respectively arranged with leaf spring 4, side bar deformed steel 1, central sill deformed steel 2 is respectively arranged with side bar comb plate 5 above, central sill comb plate 6, side bar comb plate 5, central sill comb plate 6 is respectively at side bar deformed steel 1, on central sill deformed steel 2, polylith is set, side bar comb plate 5, central sill comb plate 6 and side bar deformed steel 1, central sill deformed steel 2 fixes by the second fastening bolt 7, the profile of tooth of the broach of the profile of tooth of the broach of side bar comb plate 5 inner sides and central sill comb plate 6 both sides is waveform, can certainly be trapezoidal, triangle or rectangle, the increment top of broach is provided with certain gradient, the mutual transpostion interval setting of adjacent fingers, the side of the interior crossbeam 8 of displacement controlling box 9 is provided with spacing bearing 13.
As shown in Figure 3, central sill deformed steel 2 bottoms are provided with crossbeam 8 and run through the bracket 12 passing through, between bracket 12 and crossbeam 8, be respectively equipped with compressing support 10, bearing 11 between crossbeam 8 and central sill deformed steel 2, bracket 12 is U-shaped, bracket 12 fixes with central sill deformed steel 2 by the 4th fastening bolt 14, between bracket 12 and central sill deformed steel 2, be provided with clamping pad 15, the end face of crossbeam 8 and bottom surface arrange respectively corrosion resistant plate 16.
As shown in Figure 4, between side bar deformed steel 1 and central sill deformed steel 2 and between adjacent two central sill deformed steels 2, be respectively arranged with leaf spring 4, leaf spring 4 is connected with central sill deformed steel 2 with side bar deformed steel 1 by the first fastening bolt 17, the special-shaped leaf spring of the leaf spring 4 arranging between side bar deformed steel 1 and central sill deformed steel 2 and between adjacent two central sill deformed steels 2 for arranging or be integrated in pairs, leaf spring 4 cross section polygons, leaf spring 4 is organized setting along stretching device length direction more.
As shown in Figure 5, the special-shaped leaf spring that leaf spring 4 is integrated.
As shown in Figure 6, the side of the interior crossbeam 8 of displacement controlling box 9 is provided with spacing bearing 13, and spacing bearing 13 is made up of rubber layer 19 and steel plate 18, and its inside is ball-type, and spacing bearing 13 is provided with slide plate layer 20 with the contact surface of crossbeam 8.
As shown in Figure 7, bearing 11 is made up of rubber layer 19 and steel plate 18, and its inside is ball-type, and bearing 11 is provided with slide plate layer 20 with the contact surface of crossbeam.
As shown in Figure 8, side bar comb plate 5, central sill comb plate 6 is arranged with stainless steel slide plate 21, the two ends of water proof rubber bar 3 are provided with grip block 22, grip block 22 embeds side bar deformed steel 1, in the draw-in groove 23 at central sill deformed steel 2 tops, the end face at water proof rubber bar 3 middle parts is plane, bottom is the die cavity 24 of sealing, die cavity 24 cross sections are elliptical aperture, above water proof rubber bar 3 two ends, be provided with fixation steel plate 25, fixation steel plate 25 is by the 3rd fastening bolt 26 and side bar deformed steel 1, central sill deformed steel 2 fixes, stainless steel slide plate 21 is attached on fixation steel plate 25, the second fastening bolt 7 is single, side bar deformed steel 1, the end face of central sill deformed steel 2 has the groove 28 of the built-in locating piece 27 matching with the second fastening bolt 7.
As shown in Figure 9, the end face at water proof rubber bar 3 middle parts is that plane, bottom are nonocclusive die cavity 24, and die cavity 24 cross sections are elliptical aperture.
As shown in figure 10, the utility model modulus type comb plate stretching device comprises paired side bar deformed steel 1 and at least one central sill deformed steel 2 of being arranged between bridge end shrinkage joint, side bar deformed steel 1, the cross section of central sill deformed steel 2 is I-shaped, between side bar deformed steel 1 and central sill deformed steel 2 and between adjacent two central sill deformed steels 2, is respectively arranged with water proof rubber bar 3, leaf spring 4, side bar deformed steel 1, central sill deformed steel 2 is respectively arranged with side bar comb plate 5 above, central sill comb plate 6, side bar comb plate 5, central sill comb plate 6 and side bar deformed steel 1, central sill deformed steel 2 fixes by the second fastening bolt 7, the double setting of the second fastening bolt 7, and side bar deformed steel 2 bottoms are provided with the displacement controlling box 9 with crossbeam 8, the interior crossbeam 8 of displacement controlling box 9 upper, be respectively equipped with compressing support 10 below, bearing 11, central sill deformed steel 2 bottoms are provided with crossbeam 8 and run through the bracket 12 passing through, between bracket 12 and crossbeam 8, between crossbeam 8 and central sill deformed steel 2, be respectively equipped with compressing support 10, bearing 11.
As shown in figure 11, between side bar deformed steel 1 and central sill deformed steel 2 and between adjacent two central sill deformed steels 2, be respectively arranged with leaf spring 4, side bar deformed steel 1, central sill deformed steel 2 is respectively arranged with side bar comb plate 5 above, central sill comb plate 6, side bar comb plate 5, central sill comb plate 6 is respectively at side bar deformed steel 1, on central sill deformed steel 2, polylith is set, side bar comb plate 5, central sill comb plate 6 and side bar deformed steel 1, central sill deformed steel 2 fixes by the second fastening bolt 7, the double setting of the second fastening bolt 7, the profile of tooth of the broach of the profile of tooth of the broach of side bar comb plate 5 inner sides and central sill comb plate 6 both sides is waveform, can certainly be trapezoidal, triangle or rectangle, the increment top of broach is provided with certain gradient, the mutual transpostion interval setting of adjacent fingers, the side of the interior crossbeam 8 of displacement controlling box 9 is provided with spacing bearing 13.
As shown in figure 12, the double setting of the second fastening bolt 7.
Modulus type comb plate stretching device provided by the utility model, for space, bridge beam end shrinkage joint.Between side bar deformed steel 1 and central sill deformed steel 2 and between adjacent two central sill deformed steels 2, be respectively arranged with water proof rubber bar 3 and leaf spring 4, side bar deformed steel 2 bottoms are provided with the displacement controlling box 9 with crossbeam 8, the above and below of the interior crossbeam 8 of displacement controlling box 9 is respectively equipped with compressing support 10, bearing 11, the side of the interior crossbeam 8 of displacement controlling box 9 is provided with spacing bearing 13, central sill deformed steel 2 bottoms are provided with crossbeam 8 and run through the bracket 12 passing through, between bracket 12 and crossbeam 8, be respectively equipped with compressing support 10, bearing 11 between crossbeam 8 and central sill deformed steel 2.Flexible by side bar deformed steel 1 and central sill deformed steel 2 on crossbeam 8 between two displacement controlling boxes 9, meets the demand that bridge telescopic displacement changes.
Side bar comb plate 5, central sill comb plate 6 arrange polylith respectively on side bar deformed steel 1, central sill deformed steel 2, side bar comb plate 5, central sill comb plate 6 fix by the second fastening bolt 7 with side bar deformed steel 1, central sill deformed steel 2, be convenient to like this remove and install, damaging appears in every group of comb plate, can dismantle separately, install, not affect the use operation of whole stretching device.The increment top of broach is provided with certain gradient, is convenient to the interior dust rubbish of Automatic clearance groove in modulus type comb plate stretching device telescopic process, realizes dust rubbish in stretching device use procedure middle slot and exempts from cleaning.The mutual transpostion interval setting of adjacent fingers, vehicle is steadily comfortable while passing through, occurs without jumping car phenomenon.According to different demands, the profile of tooth of the broach of the profile of tooth of the broach of side bar comb plate 5 inner sides and central sill comb plate 6 both sides is waveform, trapezoidal, triangle or rectangle.
For preventing that side bar comb plate 5 in stretching device use procedure, central sill comb plate 6 from becoming flexible and perk, the second fastening bolt 7 is single or double.Second fastening bolt 7 is single while arranging, side bar comb plate 5, central sill comb plate 6 belows, the end face of side bar deformed steel 1, central sill deformed steel 2 has the groove 28 of the built-in locating piece 27 matching with the second fastening bolt 7, locating piece 27 is cylinder, cone or other polygonal body, and the second fastening bolt 7 is fixed together with side bar deformed steel 1, central sill deformed steel 2 respectively by locating piece 27.Second fastening bolt 7 is double while arranging, groove 28 need not built-in locating piece, make full use of 3 geometrical principles of determining a plane, realize side bar comb plate 5, central sill comb plate 6 stability are fastening, side bar comb plate 5, central sill comb plate 6 are connected more firm with side bar deformed steel 1, central sill deformed steel 2.Side bar comb plate 5, central sill comb plate 6 are designed to bolt and fix, and are convenient to maintenance, change.
The cross section of side bar deformed steel 1, central sill deformed steel 2 is I-shaped, has both guaranteed the performance requirement of required engineering structures, again more easy to process than king font, save raw material, be convenient to leaf spring 4 and install.
The two ends of water proof rubber bar 3 are provided with grip block 22, in the vertical draw-in groove 23 that embeds side bar deformed steel 1, central sill deformed steel 2 tops of grip block 22, firmly convenient, are convenient to install.The end face at water proof rubber bar 3 middle parts is that plane, bottom are sealing or nonocclusive die cavity 24, die cavity 24 cross sections are elliptical aperture, circular apertures or polygonal hole, adopt elliptical aperture die cavity 24, water proof rubber bar die cavity is stressed strong, stretching device is in stretching operation process, water proof rubber bar upper surface is closely connected with comb plate bottom surface all the time, prevents ponding, laying dust above broach board slot place water proof rubber bar.
Above water proof rubber bar 3 two ends, be provided with fixation steel plate 25, fixation steel plate 25 fixes with side bar deformed steel 1, central sill deformed steel 2 by the 3rd fastening bolt 26, and stainless steel slide plate 21 is attached on fixation steel plate 25.Stainless steel slide plate 21 reduces the displacement friction factor of side bar comb plate 5, central sill comb plate 6, and fixation steel plate 25 is pressed on water proof rubber bar 3 on side bar deformed steel 1, central sill deformed steel 2, and water proof rubber bar 3 chucking powers strengthen, difficult drop-off.
Bearing 11, spacing bearing 13 are made up of rubber layer 19 and steel plate 18, its inside is ball-type, compressing support 10 is made up of rubber layer and built-in plane steel plate, bearing 11, spacing bearing 13, compressing support 10 are pasted with respectively slide plate layer 20 with the contact surface of crossbeam 8, bearing 11 arranges in pairs with compressing support 10, utilize the feature of rubber damping and the comprehensive free rotary of spheroid, while realizing braking impact, there is certain buffer shock-absorbing effect, meet stretching device multi-directional deflection and torsional deflection function needs.The corrosion resistant plate 16 that slide plate layer 20 and crossbeam 8 upper surfaces of bearing 11 stick forms friction pair, the corrosion resistant plate 16 that slide plate layer 20 and crossbeam 8 soffits that corresponding compressing support 10 sticks stick forms friction pair, friction factor is little, stretching device in running, freely slippage on crossbeam 8.Spacing bearing 13 is that ball convex surface arranges relatively in pairs, realizes stretching device along crossbeam 8 axial direction free-extensions, to meet stretching device displacement request.In the time that stretching device has multi-faceted dislocation demand, the spacing bearing that crossbeam 8 arranges relatively in pairs by ball convex surface meets functional requirement.
Modulus type comb plate stretching device provided by the utility model is not limited only to said structure, but no matter be which kind of form, as long as structure is identical with the utility model, all falls into the utility model protection domain.
Claims (9)
1. modulus type comb plate stretching device, comprise paired side bar deformed steel and at least one central sill deformed steel of being arranged between bridge end shrinkage joint, between side bar deformed steel and central sill deformed steel and between adjacent two central sill deformed steels, be respectively arranged with water proof rubber bar, side bar deformed steel, above central sill deformed steel, be respectively arranged with side bar comb plate, central sill comb plate, side bar comb plate, central sill comb plate is arranged with stainless steel slide plate, it is characterized in that: between described side bar deformed steel and central sill deformed steel and between adjacent two central sill deformed steels, be respectively arranged with leaf spring, side bar deformed steel bottom is provided with the displacement controlling box with crossbeam, in displacement controlling box, crossbeam is upper, be respectively equipped with compressing support below, bearing, in displacement controlling box, the side of crossbeam is provided with spacing bearing, central sill deformed steel bottom is provided with crossbeam and runs through the bracket passing through, between bracket and crossbeam, between crossbeam and central sill deformed steel, be respectively equipped with compressing support, bearing.
2. modulus type comb plate stretching device according to claim 1, it is characterized in that: described leaf spring is connected with central sill deformed steel with side bar deformed steel by the first fastening bolt, the leaf spring arranging between side bar deformed steel and central sill deformed steel and between adjacent two central sill deformed steels is the special-shaped leaf spring that arranges in pairs or be integrated, leaf spring cross section is rectangle, trapezoidal or other polygon, and leaf spring is organized setting along stretching device length direction more.
3. modulus type comb plate stretching device according to claim 1, it is characterized in that: described side bar comb plate, the polylith setting on side bar deformed steel, central sill deformed steel respectively of central sill comb plate, side bar comb plate, central sill comb plate and side bar deformed steel, central sill deformed steel fix by the second fastening bolt, the profile of tooth of broach of side bar comb plate inner side and the profile of tooth of the broach of central sill comb plate both sides are waveform, trapezoidal, triangle or rectangle, the increment top of broach is provided with certain gradient, the mutual transpostion interval setting of adjacent fingers.
4. modulus type comb plate stretching device according to claim 3, it is characterized in that: the second described fastening bolt is single or double, when the second fastening bolt is single, the end face of side bar deformed steel, central sill deformed steel has the groove of the built-in locating piece matching with the second fastening bolt.
5. modulus type comb plate stretching device according to claim 1, is characterized in that: the cross section of described side bar deformed steel, central sill deformed steel is I-shaped.
6. modulus type comb plate stretching device according to claim 1, it is characterized in that: the two ends of described water proof rubber bar are provided with grip block, grip block embeds in the draw-in groove at side bar deformed steel, central sill deformed steel top, the end face at water proof rubber bar middle part is that plane, bottom are sealing or nonocclusive die cavity, and die cavity cross section is elliptical aperture, circular apertures or polygonal hole.
7. according to the modulus type comb plate stretching device described in claim 1 or 6, it is characterized in that: above described water proof rubber bar two ends, be provided with fixation steel plate, fixation steel plate fixes by the 3rd fastening bolt and side bar deformed steel, central sill deformed steel, and stainless steel slide plate is attached on fixation steel plate.
8. modulus type comb plate stretching device according to claim 1, it is characterized in that: described bearing, spacing bearing are made up of rubber layer and steel plate, its inside is ball-type, compressing support is made up of rubber layer and built-in plane steel plate, the contact surface of bearing, spacing bearing, compressing support and crossbeam is pasted with respectively slide plate layer, spacing bearing arranges in pairs, and bearing and compressing support arrange in pairs.
9. modulus type comb plate stretching device according to claim 1, is characterized in that: described bracket is U-shaped, bracket fixes by the 4th fastening bolt and central sill deformed steel, between bracket and central sill deformed steel, is provided with clamping pad.
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|---|---|---|---|
| CN201320885441.5U CN203625771U (en) | 2013-12-31 | 2013-12-31 | Modular comb plate expansion device |
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| CN201320885441.5U CN203625771U (en) | 2013-12-31 | 2013-12-31 | Modular comb plate expansion device |
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| CN203625771U true CN203625771U (en) | 2014-06-04 |
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| CN201320885441.5U Withdrawn - After Issue CN203625771U (en) | 2013-12-31 | 2013-12-31 | Modular comb plate expansion device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103669203A (en) * | 2013-12-31 | 2014-03-26 | 衡水宝力工程橡胶有限公司 | Modular-pattern comb plate stretching and contracting device |
| CN105951589A (en) * | 2016-06-23 | 2016-09-21 | 武汉臣基工程科技有限公司 | Large-displacement composite bridge expansion device |
| CN108755398A (en) * | 2018-06-06 | 2018-11-06 | 芜湖铁路桥梁制造有限公司 | Bridge expanssion joint |
| CN108755397A (en) * | 2018-06-06 | 2018-11-06 | 芜湖铁路桥梁制造有限公司 | Bridge expanssion joint |
| CN111676811A (en) * | 2020-05-26 | 2020-09-18 | 尉氏县通达公路养护工程有限公司 | Bridge expansion joint device |
| CN112695628A (en) * | 2020-12-18 | 2021-04-23 | 江苏领跑梦毛勒智造科技集团有限公司 | Arc-shaped environment-friendly telescopic device and installation method thereof |
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2013
- 2013-12-31 CN CN201320885441.5U patent/CN203625771U/en not_active Withdrawn - After Issue
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103669203A (en) * | 2013-12-31 | 2014-03-26 | 衡水宝力工程橡胶有限公司 | Modular-pattern comb plate stretching and contracting device |
| CN103669203B (en) * | 2013-12-31 | 2016-02-24 | 衡水宝力工程橡胶有限公司 | A kind of modulus type comb plate stretching device |
| CN105951589A (en) * | 2016-06-23 | 2016-09-21 | 武汉臣基工程科技有限公司 | Large-displacement composite bridge expansion device |
| CN105951589B (en) * | 2016-06-23 | 2017-07-11 | 武汉臣基工程科技有限公司 | The bridge extension joint of big displacement quantity combined type |
| CN108755398A (en) * | 2018-06-06 | 2018-11-06 | 芜湖铁路桥梁制造有限公司 | Bridge expanssion joint |
| CN108755397A (en) * | 2018-06-06 | 2018-11-06 | 芜湖铁路桥梁制造有限公司 | Bridge expanssion joint |
| CN111676811A (en) * | 2020-05-26 | 2020-09-18 | 尉氏县通达公路养护工程有限公司 | Bridge expansion joint device |
| CN112695628A (en) * | 2020-12-18 | 2021-04-23 | 江苏领跑梦毛勒智造科技集团有限公司 | Arc-shaped environment-friendly telescopic device and installation method thereof |
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