CN110080048B - Spherical steel support of straddle type monorail traffic track beam - Google Patents
Spherical steel support of straddle type monorail traffic track beam Download PDFInfo
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- CN110080048B CN110080048B CN201910516848.2A CN201910516848A CN110080048B CN 110080048 B CN110080048 B CN 110080048B CN 201910516848 A CN201910516848 A CN 201910516848A CN 110080048 B CN110080048 B CN 110080048B
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 50
- 239000010959 steel Substances 0.000 title claims abstract description 50
- 230000007246 mechanism Effects 0.000 claims abstract description 80
- 238000004873 anchoring Methods 0.000 claims abstract description 42
- 238000007906 compression Methods 0.000 claims abstract description 31
- 238000003825 pressing Methods 0.000 claims description 25
- 230000006835 compression Effects 0.000 claims description 21
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 9
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 230000003287 optical effect Effects 0.000 claims description 3
- 238000005452 bending Methods 0.000 abstract description 14
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 229910001208 Crucible steel Inorganic materials 0.000 description 8
- 230000008901 benefit Effects 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 229910001220 stainless steel Inorganic materials 0.000 description 4
- 239000010935 stainless steel Substances 0.000 description 4
- 229910052804 chromium Inorganic materials 0.000 description 3
- 239000011651 chromium Substances 0.000 description 3
- 238000011160 research Methods 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 125000003003 spiro group Chemical group 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B25/00—Tracks for special kinds of railways
- E01B25/08—Tracks for mono-rails with centre of gravity of vehicle above the load-bearing rail
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B25/00—Tracks for special kinds of railways
- E01B25/08—Tracks for mono-rails with centre of gravity of vehicle above the load-bearing rail
- E01B25/10—Mono-rails; Auxiliary balancing rails; Supports or connections for rails
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The spherical steel support of the straddle type monorail transit rail beam comprises an upper anchoring unit, a tension-compression-resistant rotating mechanism, a base, a bottom plate, a support horizontal adjusting mechanism and a lower anchoring unit, wherein a plurality of tension-compression-resistant rotating mechanisms are arranged between the upper anchoring unit and the base, the lower anchoring unit is connected with the bottom plate and the support horizontal adjusting mechanism on the upper part of the lower anchoring unit, and the upper surface of the bottom plate is provided with the base capable of being horizontally adjusted through the support horizontal adjusting mechanism; the invention has simple structure, convenient operation, convenient assembly and disassembly, effectively reduces the size of the support, reduces the weight of the support, can better reduce the cost and improve the application range, has better transverse bending resistance, effectively ensures the driving safety, has smaller additional force on the bridge, and is beneficial to ensuring the service life of the bridge.
Description
Technical Field
The invention relates to the technical field of straddle type monorail transit rail beam supports, in particular to a straddle type monorail transit rail beam spherical steel support.
Background
At present, urban rail transit is being greatly developed in China, wherein the straddle type monorail has the advantages of low noise, strong climbing capacity, small turning radius, rapidness, convenience, small occupied area, low manufacturing cost, no limit of terrain and the like, and is a rail transit for mass application in the future.
The existing straddle type monorail beam support adopts a pin cast steel support, which is required to bear vertical pressure transmitted by a beam body as a conventional bridge support, bear tensile force and transmit loads such as bending, shearing, torsion and the like generated by wind disturbance, centrifugal force during turning and earthquake force to a lower pier structure.
The existing pin-type cast steel single-rail support can meet the requirements, but has some defects, such as: 1. the pin shaft of the movable support and the matched pair thereof belong to line contact, and balanced rotation and sliding of the pin shaft are ensured through a gear rack form, so that the diameter of the pin shaft is required to be larger and high-hardness materials are selected for reducing contact stress, and the surface of the pin shaft is easy to damage due to line contact. The design of support has been restricted to line contact stress for the support body is huge, in order to improve the allowable contact stress of material, has also used the material of cost ratio high, has improved support cost 2, traditional round pin axle cast steel support lower hem and lower part structure and has been connected through four crab-bolts, and the crab-bolt outside has the anchor box, and the anchor box is pour in the concrete, is inconvenient for the inspection and the change of crab-bolt. And moreover, the service life of the support is prolonged by frequent water accumulation in the anchor box, and the cast steel material is used for the traditional pin shaft type cast steel single-rail support, so that the quality is not easy to control and the environmental pollution is larger. 4. The friction force of the traditional sliding pin shaft type monorail support is 0.1, and larger additional force is applied to the inside of the bridge, so that the bridge is not stressed easily. 5. The traditional pin roll cast steel support is difficult to construct and maintain, and the cost performance is low.
Therefore, in view of the above-mentioned drawbacks, the designer of the present invention, through intensive research and design, combines the experience and achievement of related industries for a long time, and researches and designs a spherical steel support for a straddle type monorail transit rail beam to overcome the above-mentioned drawbacks.
Disclosure of Invention
The invention aims to provide a spherical steel support for a straddle type monorail transit rail beam, which has the advantages of simple structure, convenient operation, convenient assembly and disassembly, effectively reduced support size, reduced support weight, better cost reduction, improved application range, better transverse bending resistance, effective guarantee of driving safety, smaller additional force on a bridge and benefit for guaranteeing the service life of the bridge.
In order to solve the problems, the invention discloses a spherical steel support of a straddle type monorail transit rail beam, which comprises an upper anchoring unit, a tension-compression rotating mechanism, a base, a bottom plate, a support horizontal adjusting mechanism and a lower anchoring unit, wherein a plurality of tension-compression rotating mechanisms are arranged between the upper anchoring unit and the base, the lower anchoring unit is connected with the bottom plate and the support horizontal adjusting mechanism on the upper part of the lower anchoring unit, and the upper surface of the bottom plate is provided with the base which can be horizontally adjusted through the support horizontal adjusting mechanism, and the spherical steel support is characterized in that:
the anti-pulling and pressing rotating mechanism comprises a piston, an anti-pulling bolt, an upper spherical crown lining plate, a lower spherical crown lining plate and a wear-resisting plate, wherein the lower part of the lower spherical crown lining plate is a plane, the upper part of the lower spherical crown lining plate is a convex spherical surface, the convex spherical surface is plated with a hard chrome layer, the lower part of the piston is a concave spherical surface, the wear-resisting plate is embedded in the concave spherical surface to form a friction pair with the hard chrome layer of the convex spherical surface of the lower spherical crown lining plate, the upper part of the piston is an inner groove, the inner groove is provided with the convex spherical surface and is plated with the hard chrome layer, the upper spherical crown lining plate is a cylindrical surface, the upper surface of the upper spherical crown lining plate is a plane, the lower surface of the lower spherical crown lining plate is a concave spherical surface of the friction pair, the anti-pulling bolt sequentially passes through the upper spherical crown lining plate, the piston and the lower spherical crown lining plate from the center and then is connected to a base through threads, the wear-resisting plate is embedded in the upper surface of the upper spherical crown lining plate to form a friction pair with the lower surface of the convex spherical crown lining plate, the upper surface of the piston is provided with an inner groove for containing the anti-pulling and pressing rotating mechanism, the upper bottom surface of the piston is provided with an annular crown lining plate, the upper surface of the piston is provided with a through the anti-pulling and the piston, the anti-pulling and the piston is provided with a through hole, and the anti-pulling and the piston, and the anti-pulling bolt is capable of passing through the piston and the piston.
Wherein: the anti-tension device also comprises a support height and transverse angle adjusting mechanism positioned between the anti-tension rotating mechanism and the embedded plate, wherein the support height and transverse angle adjusting mechanism is a round steel plate structure with a bolt through hole.
Wherein: u-shaped grooves are formed in the periphery or the left side and the right side of the base, the bottom plate is located at the lower portion of the base and is of a planar steel plate structure, and sinking grooves are formed in the periphery or the two sides of the bottom plate so as to install the support horizontal adjusting mechanism.
Wherein: the bottom surface and the side of U type groove set up the side wear-resisting strip of metal, the bottom of base sets up the heavy groove that installs the antifriction plate so that it has the slip function relative to the bottom plate.
Wherein: the support level adjustment mechanism comprises a pressing stop block, an adjusting screw, a mounting sleeve and a sliding shoe, wherein the pressing stop block is mounted in a sinking groove, a plurality of circular step holes are formed in the pressing stop block in the horizontal direction, the outer side of the mounting sleeve is an optical axis structure and axially moves relative to the circular step holes, an inner hole is a thread, one end of the adjusting screw is an external thread and is in threaded fit with the inner hole of the mounting sleeve, the other end of the adjusting screw is a cylindrical step structure and is in threaded fit with the circular step holes so as to realize the rotatable and non-axial movement of the adjusting screw relative to the circular step holes, and the sliding shoe is mounted at one end of the mounting sleeve and is mounted in a U-shaped groove of a base.
Wherein: the adjusting screw is of a split structure and comprises a rod part and a head part, one end of the rod part is fixed to the head part after penetrating out of a circle center step hole, the diameter of the head part is larger than a smaller diameter hole of the circle center step hole, a boss is arranged on the outer edge of the middle of the rod part, the diameter of the boss is larger than the smaller diameter hole of the circle center step hole but slightly smaller than the larger diameter hole of the circle center step hole, so that the boss is clamped on two sides of the step of the circle center step hole through the head part and the boss, and the other end of the rod part is in threaded connection with the mounting sleeve.
Wherein: the outer periphery of the mounting sleeve is horizontally arranged in a larger-diameter hole of the circle center step hole of the compression stop block, and a small gap is reserved between the mounting sleeve and the larger-diameter hole, so that relative movement can be realized.
Wherein: a plurality of round through holes are formed in each sinking groove, a plurality of round through holes are formed in the compression stop block too and used for penetrating through compression bolts, and the compression bolts penetrate through the compression baffle and the bottom plate and are then screwed with the lower anchoring unit.
Wherein: the lower anchoring unit consists of a plurality of anchoring steel bars, bolt holes are formed in the upper parts of the anchoring steel bars and are connected with compression bolts of the support horizontal adjusting mechanism, and round anti-pulling pull plates are welded at the lower parts of the lower anchoring steel bars.
According to the structure, the spherical steel support of the straddle type monorail transit rail beam has the following effects:
1. by adopting two special tensile pressing rotating mechanisms as a main body structure, the two rotatable tensile pulling ball-shaped mechanisms can not only transmit vertical load, but also limit vertical displacement, and simultaneously can realize the rotation along the bridge direction, and the two mechanisms can independently rotate and can adjust the rotation angle of the transverse bridge direction by adding a backing plate after being matched, once the adjustment is finished, the support loses the rotation function in the transverse bridge direction after the two mechanisms are combined, so that the bending resistance function of the transverse bridge direction can be exerted. The two mechanisms are matched with unique horizontal and vertical adjusting mechanisms, and the function of adjusting the track beam of the straddle type monorail traffic track beam support is skillfully realized.
2. The support is made of hot rolled steel plates, so that the quality of the support is easier to ensure than that of the traditional cast steel support, the processing period is short, and the support is more environment-friendly; the support abandons the traditional pin shaft structure, does not have the design bottleneck of overlarge contact stress between the pin shaft and the plate, reduces the plane size of the support, and greatly reduces the weight of the support; and because the design bottleneck of contact stress is avoided, the steel of the support is wider, and the price of the steel is lower.
3. The main body adopts two rotatable tensile ball-shaped rotating mechanisms, the stress structure is clear, no necking phenomenon exists when the support transmits vertical force, and the stress on the concrete at the upper part and the lower part is better. Because the pin shaft structure is not adopted, the transverse pin shaft sliding does not exist, the transverse bending resistance is better, and the driving safety is ensured.
4. The plane sliding pair of the wear-resisting plate and the stainless steel plate is adopted, so that the plane sliding pair has lower friction coefficient, has smaller additional force on the bridge, and is beneficial to guaranteeing the service life of the bridge.
5. When the angle or the height is adjusted, the bolts of the rotatable tensile ball-shaped mechanism and the upper plate can be partially released, and the support still has a partial transverse bending-resistant function at the moment, so that the safety of personnel and the structure is ensured.
The details of the present invention can be found in the following description and the accompanying drawings.
Drawings
Fig. 1 shows a schematic structural view of a spherical steel support of a straddle type monorail transit rail beam.
Fig. 2 shows another schematic view of the present invention.
Figure 3 shows a front view and a partial cross-sectional view of the present invention.
Fig. 4 shows a side view of the invention.
Reference numerals:
the novel steel bar casting machine comprises a 1-upper anchoring unit, a 2-tensile compression rotating mechanism, a 3-base, a 4-bottom plate, a 5-support horizontal adjusting mechanism, a 7-lower anchoring unit, a 1.1-upper anchorage steel bar, a 1.2-embedded plate, a 5.1-compression stop block, a 5.2-adjusting screw, a 5.3-mounting sleeve, a 5.5-sliding shoe, a 5.4-compression screw, a 3 a-upper circular groove, a 3 b-U-shaped groove, a 3 c-side wear-resisting strip and a 4 a-sinking groove.
Detailed Description
Referring to fig. 1-4, the spherical steel support of the straddle type monorail transit rail beam is shown.
The spherical steel support of the straddle type monorail transit rail beam comprises an upper anchoring unit 1, a tension-compression-resistant rotating mechanism 2, a base 3, a bottom plate 4, a support horizontal adjusting mechanism 5, a support height and transverse angle adjusting mechanism and a lower anchoring unit 7.
The upper anchoring unit 1 is pre-buried in a prefabricated PC beam, the upper anchoring unit is fixed on a tensile pressing rotating mechanism 2 below through bolts, the lower anchoring unit 7 is poured on a pier and is connected with a bottom plate 4 and a support horizontal adjusting mechanism 5 on the upper portion of the lower anchoring unit through bolts, a base 3 capable of being horizontally adjusted through the support horizontal adjusting mechanism 5 is arranged on the upper surface of the bottom plate 4, the upper surface of the base 3 is connected with the upper anchoring unit 1 through a plurality of tensile pressing rotating mechanisms 2, so that functions such as pulling force, pressure, bending moment, longitudinal sliding (movable support) and longitudinal corner of the support are realized through the tensile pressing rotating mechanism 2, the base 3, the bottom plate 4 and the support horizontal adjusting mechanism 5, and pulling force, pressure and bending moment are reliably transmitted to the upper anchoring unit 1 and the lower anchoring unit 7, so that pulling force, pressure and bending moment generated by the track beam are transmitted to the bottom pier, and the track beam can be longitudinally provided with small free corners and temperature shrinkage displacement. In addition, the support horizontal adjusting mechanism 5 and the support height and transverse angle adjusting mechanism arranged on the support can be used for conveniently adjusting the horizontal displacement, the height and the deflection angle of the track.
Referring to fig. 3, the upper anchoring unit 1 is composed of a plurality of upper anchorage steel bars 1.1 and embedded plates 1.2, and the lower ends of the upper anchorage steel bars 1.1 which can be arranged in an array form are welded with the embedded plates 1.2, so that the upper anchorage steel bars are connected with the track beams at the upper parts of the upper anchorage steel bars, and the connection mode generally adopts a concrete pre-pouring mode.
Referring to fig. 3, the anti-pulling rotary mechanism 2 comprises a piston, an anti-pulling bolt, an upper spherical crown liner plate, a lower spherical crown liner plate and a wear-resisting plate, the base 3 is provided with an upper circular groove 3a for accommodating the anti-pulling rotary mechanism, the bottom surface of the upper circular groove 3a of the base is welded with a stainless steel plate with an annular mirror surface, the lower spherical crown liner plate is positioned at the lowest end, the lower part of the lower spherical crown liner plate is a plane, the upper part of the lower spherical crown liner plate is a convex spherical surface, the convex spherical surface of the lower spherical crown liner plate is plated with a hard chromium layer, the lower part of the piston is a concave spherical surface, the concave spherical surface of the piston is embedded with the wear-resisting plate so as to form a friction pair with the hard chromium layer of the convex spherical surface of the lower spherical crown liner plate, the upper part of the piston can rotate relatively, the inner groove is internally provided with the upper spherical crown liner plate, the inner groove is a convex spherical surface, the convex spherical surface of the inner groove is also plated with the hard chromium layer, the whole cylindrical upper spherical crown lining plate is provided with a plane on the upper surface and a concave spherical surface on the lower surface, the concave spherical surface of the upper spherical crown lining plate is internally embedded with a wear-resisting plate to form a friction pair with the convex spherical surface of the inner groove of the piston, the anti-pulling bolt sequentially passes through the upper spherical crown lining plate, the piston and the lower spherical crown lining plate from the center and then is connected to the base 3 through threads, the upper surface of the upper spherical crown lining plate is internally embedded with the wear-resisting plate to form a friction pair with the lower surface of the head of the anti-pulling bolt, the centers of the upper spherical crown lining plate, the piston and the lower spherical crown lining plate are provided with through holes for the anti-pulling bolt to pass through, and gaps are reserved between the through holes and the anti-pulling bolts to allow relative sliding among all parts, so that the whole tensile compression rotating mechanism 2 is fixedly arranged on the base 3 through the anti-pulling bolt, vertical compression load is transmitted through the piston and the lower spherical crown lining plate, and vertical tension load is transmitted through the piston, the upper spherical crown lining plate and the anti-pulling bolt The anti-pulling bolt and the base 3 are transmitted.
Wherein the upper edge of the piston may be anchored to the upper anchoring unit.
The lower spherical crown lining plate and part of the piston are embedded in the upper circular groove of the base 3, when the beam body rotates, the piston rotates in the upper circular groove, and the lower spherical crown lining plate and the upper spherical crown lining plate slide in the upper circular groove of the base 3 in a plane. Therefore, the tension-compression-resistant rotating mechanism can moderately rotate in any direction, and the vertical direction is limited and cannot move. Therefore, a single tensile compression-resistant rotating mechanism can rotate freely, has compression-resistant and tensile pulling-resistant functions in the vertical direction, and the tensile pulling-resistant function is realized through a pulling-resistant bolt in the mechanism; the two tensile pressing rotating mechanisms are preferably arranged at intervals, and cannot rotate in the connecting line direction (namely the transverse bridge direction) of the two mechanisms, but the relative rotation between the upper structure and the lower structure can be released in the vertical direction of the connecting line. The two anti-pulling bolts form a couple for balancing the transverse bridge to the bending moment, and the support is stressed clearly. When the two tensile compression rotating mechanisms 2 are connected with the embedded plate 1.2, the support is fixedly connected together in the transverse bridge direction, and the transverse bridge direction has no free rotation capability. And two tensile compression rotating mechanisms 2 in the longitudinal bridge direction can rotate together with the upper anchoring unit 1 by a certain angle (as shown in fig. 4).
Wherein, the height of the support and the transverse angle adjusting mechanism are located between the tension-compression rotating mechanism 2 and the embedded plate 1.2, so that the height of the support can be integrally adjusted, and the gradient of the support can be adjusted in the transverse bridge direction (as shown in fig. 3) by adjusting the height difference of the two tension-compression rotating mechanisms 2. Preferably, the support height and transverse angle adjusting mechanism is a circular steel plate structure with bolt through holes, the distance between the single-side or two-side tensile pressing rotating mechanism 2 and the embedded plate 1.2 is adjusted by changing the thickness of the circular steel plate structure with different heights, and then the height or the horizontal angle is adjusted.
The base 3 is a mounting foundation of the straddle type monorail transit rail beam spherical support, a plurality of round upper round grooves 3a are formed in the upper portion of the base, the base is used for mounting each tensile pressing rotating mechanism 2, threaded holes can be formed in the centers of the round upper grooves 3a, the base is used for connecting anti-pulling bolts of each tensile pressing rotating mechanism 2, U-shaped grooves 3b are formed in the periphery or the left side and the right side of the base 3, further, according to the fact that whether the base has a slidable function or not, side wear-resisting strips 3c made of stainless steel or other metals can be arranged on the bottom and the side faces of the U-shaped grooves, and a sinking groove can be formed in the bottom of the base 3 to mount wear-resisting plates, so that the base has a sliding function relative to the base plate 4.
The bottom plate 4 is located the base 3 lower part, and it is planar steel plate structure, and its week or both sides are equipped with heavy groove in order to install support horizontal adjustment mechanism 5, are equipped with a plurality of circular through-holes in each heavy groove, support horizontal adjustment mechanism 5 includes and compresses tightly dog 5.1, adjusting screw 5.2, installation sleeve 5.3, skid shoe 5.5 and hold-down bolt 5.4, compress tightly dog 5.1 and compress tightly the bottom width of dog 5.1 and equal with heavy groove width to restrict the lateral shifting of compressing tightly dog 5.1, be equipped with a plurality of circular through-holes in compressing tightly dog 5.1 equally in order to be used for passing hold-down bolt 5.4, hold-down bolt 5.4 is a plurality of and runs through behind compressing tightly baffle 5.1 and the bottom plate 4 with anchor unit 7 spiro union down, thereby realizes compressing tightly dog 5.1, bottom plate 4 and anchor unit's zonulae occludens down.
Wherein the compression bolt 5.4 is connected with an anchoring steel bar in the lower anchoring unit 7.
Wherein the pressing stop block 5.1 is provided with a plurality of circular step holes in the horizontal direction for penetrating through the adjusting screw 5.2 and the mounting sleeve 5.3, the outer side of the mounting sleeve 5.3 is an optical axis structure for axially moving relative to the circular step holes, the inner hole is a thread, one end of the adjusting screw 5.2 is an external thread for being in threaded fit with the mounting sleeve 5.3, the other end is a cylindrical step structure for being in threaded fit with the circular step holes to realize rotatable and non-axially movable relative to the circular step holes of the adjusting screw 5.2, in one embodiment, the adjusting screw 5.2 is a split structure which comprises a rod part and a head part, one end of the rod part is fixed to the head part after penetrating out of the circular step holes, the diameter of the head part is larger than the smaller diameter hole of the circular step holes, the middle outer edge of the rod part is provided with a boss, the diameter of the boss is larger than that of a smaller diameter hole of the circle center step hole but slightly smaller than that of a larger diameter hole of the circle center step hole, so that the boss is clamped on two sides of the circle center step hole step through the head and the boss, the other end of the rod part is connected with the mounting sleeve 5.3 through threads, the extension or shortening of the mounting sleeve 5.3 relative to the adjusting screw 5.2 is achieved through threaded rotation (in order to accord with mounting habits, threads at the position can be designed into a left-handed mode), a sliding shoe is mounted at one end of the mounting sleeve 5.3, the sliding shoe 5.3 is mounted in the U-shaped groove 3b of the base 3 and is tightly matched with the bottom surface and the side surface of the U-shaped groove 3b, relative sliding can be achieved with the bottom surface and the side surface of the U-shaped groove 3b according to requirements, and the outer periphery of the mounting sleeve 5.3 is horizontally mounted in the larger diameter hole of the circle center step hole of the pressing stop block 5.1, and a tiny gap is reserved between the sliding shoe and the larger diameter hole can achieve relative movement.
To sum up, the pressing stop 5.1 fixes the base 3 and the bottom plate 4 together in the vertical direction, limits the vertical relative movement between the two parts, and transmits the horizontal force of the base 3 to the pressing stop 5.1 through the close fit of the screw pair and the circular stepped holes in the sliding shoe 5.5, the adjusting screw 5.2, the mounting sleeve 5.3 and the pressing stop 5.1, and transmits the horizontal force to the bottom structure through the bottom plate 4, the pressing bolt 5.4 and the lower anchoring unit.
The lower anchoring unit 7 is positioned at the lower part of the bottom plate and consists of a plurality of anchoring steel bars, the upper part of each anchoring steel bar is provided with a bolt hole so as to be connected with a compression bolt 5.4 of the support horizontal adjusting mechanism 5, a round pull plate is welded at the lower part of each anchoring steel bar, the lower anchoring unit and the pier capping beam are poured together, and the vertical pull, the pressure, the horizontal shearing force and the bending moment of the support are transmitted to the pier capping beam.
It follows that the advantages of the invention are:
1. by adopting two special tensile pressing rotating mechanisms as a main body structure, the two rotatable tensile pulling ball-shaped mechanisms can not only transmit vertical load, but also limit vertical displacement, and simultaneously can realize the rotation along the bridge direction, and the two mechanisms can independently rotate and can adjust the rotation angle of the transverse bridge direction by adding a backing plate after being matched, once the adjustment is finished, the support loses the rotation function in the transverse bridge direction after the two mechanisms are combined, so that the bending resistance function of the transverse bridge direction can be exerted. The two mechanisms are matched with unique horizontal and vertical adjusting mechanisms, and the function of adjusting the track beam of the straddle type monorail traffic track beam support is skillfully realized.
2. The support is made of hot rolled steel plates, so that the quality of the support is easier to ensure than that of the traditional cast steel support, the processing period is short, and the support is more environment-friendly; the support abandons the traditional pin shaft structure, does not have the design bottleneck of overlarge contact stress between the pin shaft and the plate, reduces the plane size of the support, and greatly reduces the weight of the support; and because the design bottleneck of contact stress is avoided, the steel of the support is wider, and the price of the steel is lower.
3. The main body adopts two rotatable tensile ball-shaped rotating mechanisms, the stress structure is clear, no necking phenomenon exists when the support transmits vertical force, and the stress on the concrete at the upper part and the lower part is better. Because the pin shaft structure is not adopted, the transverse pin shaft sliding does not exist, the transverse bending resistance is better, and the driving safety is ensured.
4. The plane sliding pair of the wear-resisting plate and the stainless steel plate is adopted, so that the plane sliding pair has lower friction coefficient, has smaller additional force on the bridge, and is beneficial to guaranteeing the service life of the bridge.
5. When the angle or the height is adjusted, the bolts of the rotatable tensile ball-shaped mechanism and the upper plate can be partially released, and the support still has a partial transverse bending-resistant function at the moment, so that the safety of personnel and the structure is ensured.
It is to be clearly understood that the above description and illustration is made only by way of example and not as a limitation on the disclosure, application or use of the invention. Although embodiments have been described in the embodiments and illustrated in the accompanying drawings, the invention is not limited to the specific examples illustrated by the drawings and described in the embodiments as the best mode presently contemplated for carrying out the teachings of the invention, and the scope of the invention will include any embodiments falling within the foregoing specification and the appended claims.
Claims (9)
1. The utility model provides a stride a formula monorail transit track roof beam ball-type steel support, includes anchor unit, tensile rotary mechanism, base, bottom plate, support level adjustment mechanism and anchor unit down, be equipped with a plurality of tensile rotary mechanism that press between anchor unit and the base, the bottom plate and the support level adjustment mechanism on lower anchor unit and upper portion are connected, the upper surface of bottom plate is equipped with the base that can carry out level adjustment through support level adjustment mechanism, its characterized in that:
the anti-pulling and pressing rotating mechanism comprises a piston, an anti-pulling bolt, an upper spherical crown lining plate, a lower spherical crown lining plate and a wear-resisting plate, wherein the lower part of the lower spherical crown lining plate is a plane, the upper part of the lower spherical crown lining plate is a convex spherical surface, the convex spherical surface is plated with a hard chrome layer, the lower part of the piston is a concave spherical surface, the wear-resisting plate is embedded in the concave spherical surface to form a friction pair with the hard chrome layer of the convex spherical surface of the lower spherical crown lining plate, the upper part of the piston is an inner groove, the inner groove is provided with the convex spherical surface and is plated with the hard chrome layer, the upper spherical crown lining plate is a cylindrical surface, the upper surface of the upper spherical crown lining plate is a plane, the lower surface of the lower spherical crown lining plate is a concave spherical surface of the friction pair, the anti-pulling bolt sequentially passes through the upper spherical crown lining plate, the piston and the lower spherical crown lining plate from the center and then is connected to a base through threads, the wear-resisting plate is embedded in the upper surface of the upper spherical crown lining plate to form a friction pair with the lower surface of the convex spherical crown lining plate, the upper surface of the piston is provided with an inner groove for containing the anti-pulling and pressing rotating mechanism, the upper bottom surface of the piston is provided with an annular crown lining plate, the upper surface of the piston is provided with a through the anti-pulling and the piston, the anti-pulling and the piston is provided with a through hole, and the anti-pulling and the piston, and the anti-pulling bolt is capable of passing through the piston and the piston.
2. The straddle type monorail transit rail beam-type steel support of claim 1, wherein: the anti-tension device also comprises a support height and transverse angle adjusting mechanism positioned between the anti-tension rotating mechanism and the embedded plate, wherein the support height and transverse angle adjusting mechanism is a round steel plate structure with a bolt through hole.
3. The straddle type monorail transit rail beam-type steel support of claim 1, wherein: u-shaped grooves are formed in the periphery or the left side and the right side of the base, the bottom plate is located at the lower portion of the base and is of a planar steel plate structure, and sinking grooves are formed in the periphery or the two sides of the bottom plate so as to install the support horizontal adjusting mechanism.
4. A straddle type monorail transit rail beam-ball type steel support as claimed in claim 3, wherein: the bottom surface and the side of U type groove set up the side wear-resisting strip of metal, the bottom of base sets up the heavy groove that installs the antifriction plate so that it has the slip function relative to the bottom plate.
5. A straddle type monorail transit rail beam-ball type steel support as claimed in claim 3, wherein: the support level adjustment mechanism comprises a pressing stop block, an adjusting screw, a mounting sleeve and a sliding shoe, wherein the pressing stop block is mounted in a sinking groove, a plurality of circular step holes are formed in the pressing stop block in the horizontal direction, the outer side of the mounting sleeve is an optical axis structure and axially moves relative to the circular step holes, an inner hole is a thread, one end of the adjusting screw is an external thread and is in threaded fit with the inner hole of the mounting sleeve, the other end of the adjusting screw is a cylindrical step structure and is in threaded fit with the circular step holes so as to realize the rotatable and non-axial movement of the adjusting screw relative to the circular step holes, and the sliding shoe is mounted at one end of the mounting sleeve and is mounted in a U-shaped groove of a base.
6. The straddle type monorail transit rail beam-type steel support according to claim 5, wherein: the adjusting screw is of a split structure and comprises a rod part and a head part, one end of the rod part is fixed to the head part after penetrating out of a circle center step hole, the diameter of the head part is larger than a smaller diameter hole of the circle center step hole, a boss is arranged on the outer edge of the middle of the rod part, the diameter of the boss is larger than the smaller diameter hole of the circle center step hole but slightly smaller than the larger diameter hole of the circle center step hole, so that the boss is clamped on two sides of the step of the circle center step hole through the head part and the boss, and the other end of the rod part is in threaded connection with the mounting sleeve.
7. The straddle type monorail transit rail beam-type steel support according to claim 5, wherein: the outer periphery of the mounting sleeve is horizontally arranged in a larger-diameter hole of the circle center step hole of the compression stop block, and a small gap is reserved between the mounting sleeve and the larger-diameter hole, so that relative movement can be realized.
8. The straddle type monorail transit rail beam-type steel support according to claim 5, wherein: a plurality of round through holes are formed in each sinking groove, a plurality of round through holes are formed in the compression stop block too and used for penetrating through compression bolts, and the compression bolts penetrate through the compression baffle and the bottom plate and are then screwed with the lower anchoring unit.
9. The straddle type monorail transit rail beam-type steel support of claim 8, wherein: the lower anchoring unit consists of a plurality of anchoring steel bars, bolt holes are formed in the upper parts of the anchoring steel bars and are connected with compression bolts of the support horizontal adjusting mechanism, and round anti-pulling pull plates are welded at the lower parts of the lower anchoring steel bars.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| IT202000014368A1 (en) * | 2020-06-16 | 2021-12-16 | Hirun Taiwan Co Ltd | SUPPORT FOR BEAMS |
| CN113802423A (en) * | 2020-06-17 | 2021-12-17 | 比亚迪股份有限公司 | Track beam support adjusting device |
| CN113605244B (en) * | 2021-08-11 | 2023-03-17 | 长安大学 | Support connecting device suitable for self-anchored suspension bridge and tower beam displacement adaptation method |
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