Straddle type monorail traffic PC track beam support

Abstract

The utility model relates to the technical field of track beam supports, in particular to a straddle type monorail traffic PC track beam support which comprises an upper swing and a lower swing, a single lug plate is arranged at the bottom of the upper swing, a rotating hole is formed in the single lug plate in the transverse bridge direction, a hinged shaft is rotationally arranged in the rotating hole, and a double-lug fork is arranged at the top of the lower swing. A sliding hole is formed in the double-lug fork, the two ends of the hinged shaft are inserted into the sliding hole, a first sliding plate and a second sliding plate which can slide mutually are arranged between the top and the bottom of the hinged shaft and the top and the bottom of the sliding hole, the first sliding plate is fixedly arranged on the hinged shaft, and the second sliding plate is fixedly arranged on the inner wall of the sliding hole. Sliding spaces are formed between the two sides, in the bridge direction, of the hinged shaft and the inner walls of the sliding holes, so that the upper pendulum can slide in the bridge direction relative to the lower pendulum through the first sliding plate and the second sliding plate. The upper pendulum and the lower pendulum of the support longitudinally move through the two sliding blocks, and abrasion of the hinged shaft and the lower pendulum is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of track beam supports, in particular to a straddle-type monorail transportation PC track beam support. Background Art

[0002] As the supporting system of the bridge, the bearing is an important part of the bridge structure. The rapid development of modern rail transit has promoted the development of rail transit bridges. Since each type of rail transit has its own different stress characteristics and adaptability, it has promoted the continuous development of bridge bearings. Among them, the PC rail beam of straddle-type monorail transit is a distinctive rail beam. The biggest feature of straddle-type monorail transit is that it can adapt to larger slopes and smaller turning radius, with less noise and higher passenger comfort. Therefore, it is increasingly favored by urban rail transit construction, especially in cities in mountainous and hilly areas, and has a good development prospect.

[0003] The special stress characteristics of PC rail beams and geographical factors lead to complex stress on the bearings, with large alternating stresses in both the horizontal and vertical directions, and upward tension is also common on curved beams. Rail transit vehicles have very high requirements for the linearity of PC rail beams. In addition, due to the geographical environment such as mountains where bridges are built, it is difficult to ensure construction accuracy. The bearings need to be three-way adjustable during installation. At the same time, uneven settlement of bridge piers is inevitable during operation. In order to ensure the smooth operation of the line, the bearings also need to have adjustable functions. At present, the spherical bearings, pot-type bearings and other technically mature bearings commonly used in rail transit cannot meet the requirements of PC rail beams for bearings in terms of stress and adjustable functions. Of course, with the development in recent years, some bearings suitable for PC rail beams have also appeared. Judging from the lines that have been built and opened to traffic in my country, the bearings can meet the design requirements in terms of force and function, but there are still some minor defects, mainly reflected in the difficulty of adjustment or insufficient adjustment during installation. In order to ensure the quality of the project, special methods and equipment are required during installation, which increases the difficulty of construction and installation, reduces construction efficiency and increases construction costs. Some lines also have problems with the inability to adjust the settlement of piers in later operations and the damage due to insufficient fatigue resistance of the bearings. The solution is mostly to replace the bearings.

[0004] The Chinese invention patent application with application publication number CN109722953A discloses a welded tensile support for a straddle-type monorail track beam and a force transfer method. The upper and lower swings of the welded tensile support for the straddle-type monorail track beam are connected by a hinge shaft, and the relative rotation between the upper and lower swings is used to meet the rotation angle generated by the beam end when the track beam is subjected to force; the longitudinal displacement of the movable support is achieved by the relative sliding between the hinge shaft and the pressure plate installed on the lower swing. The welded tensile support for the straddle-type monorail track beam has the following problems: when the hinge shaft and the pressure plate are relatively displaced, the surface of the hinge shaft will rub against the pressure plate. Long-term friction will cause the anti-rust paint on the surface of the hinge shaft to be worn, causing the hinge shaft to rust. After the hinge shaft is rusted, the friction between the hinge shaft and the pressure plate will increase, which is not conducive to the relative displacement of the two. Utility Model Content

[0005] The purpose of the utility model is to provide a straddle-type monorail transportation PC rail beam support in view of the defects of the prior art, wherein the upper and lower swings of the support are longitudinally moved by two sliders, thereby avoiding the wear of the hinge shaft and the lower swing.

[0006] In order to solve the above technical problems, the utility model provides a straddle-type monorail transportation PC rail beam support, including an upper swing and a lower swing, a single ear plate is arranged at the bottom of the upper swing, the single ear plate is provided with a rotating hole along the transverse bridge direction, a hinge shaft is rotatably arranged in the rotating hole, a double ear fork is arranged at the top of the lower swing, a sliding hole is arranged on the double ear fork, both ends of the hinge shaft are inserted into the sliding hole, a first slide plate and a second slide plate that can slide against each other are arranged between the top and bottom of the hinge shaft and the sliding hole, the first slide plate is fixedly arranged on the hinge shaft, the second slide plate is fixedly arranged on the inner wall of the sliding hole, a sliding space is arranged between the two sides of the hinge shaft along the longitudinal direction of the bridge and the inner wall of the sliding hole, so that the upper swing can slide relative to the lower swing along the longitudinal direction of the bridge through the first slide plate and the second slide plate.

[0007] The utility model arranges the first slide plate and the second slide plate between the hinge shaft and the sliding hole, and the upper swing and the lower swing are relatively slid along the bridge direction through the first slide plate and the second slide plate, and the wear will only occur between the first slide plate and the second slide plate, and will not affect the surface of the hinge shaft and the sliding hole. The hinge shaft and the double ear fork can be prevented from rusting, and the service life of the structure is increased.

[0008] Furthermore, the upper and lower surfaces of the hinge shaft inserted into the sliding hole are plane and both have slide plate grooves, the first slide plate is detachably fixed in the slide plate groove, the first slide plate abuts against the inner wall of the slide plate groove, and the thickness of the first slide plate is greater than the depth of the slide plate groove.

[0009] The first slide plate of the utility model can be detachably fixedly connected to the bottom of the slide plate groove by means of bolts. Since the first slide plate abuts against the inner wall of the slide plate groove, the slide plate groove can limit the first slide plate, reduce the shear force on the bolt, and avoid fatigue fracture of the bolt caused by long-term relative sliding of the first slide plate and the second slide plate. And the first slide plate can be easily replaced after being worn to a certain extent.

[0010] Furthermore, the length of the second slide plate along the direction along the bridge is greater than the length of the first slide plate along the direction along the bridge, and the hardness of the first slide plate is less than the hardness of the second slide plate.

[0011] The utility model sets the hardness of the first slide plate to be smaller than the hardness of the second slide plate. When the first slide plate and the second slide plate rub against each other, the first slide plate is mainly worn. This avoids the formation of grooves on the surface of the second slide plate during long-term friction, which affects the sliding of the first slide plate.

[0012] Furthermore, the first slide plate is a copper alloy slide plate, and the second slide plate is a mirror stainless steel plate.

[0013] The utility model adopts the copper alloy sliding plate and the mirror stainless steel plate, both of which will not rust, and the friction coefficient between the two is low, which is conducive to the sliding of the support along the bridge direction.

[0014] Furthermore, the thickness of the first slide plate is 5-10 mm.

[0015] The thickness of the first slide plate of the utility model should be controlled to meet the inevitable wear adaptability within the design service life, and a large compression deformation will not occur due to the excessive thickness of the first slide plate material, ensuring that the first slide plate is always in contact with the second slide plate.

[0016] Furthermore, the hinge shaft includes a rotating part and a sliding part, the sliding part is arranged at both ends of the rotating part, the rotating part is rotatably arranged in the rotating hole of the single ear plate, the sliding part is inserted into the sliding hole of the double ear fork, the sliding hole is provided with a first arc surface on both sides along the bridge direction, and the sliding part is provided with a second arc surface matching the first arc surface on both sides along the bridge direction.

[0017] Since the hinge shaft is generally made of alloy steel with relatively good material properties, and the upper and lower hems are generally made of cast steel or low-alloy steel with relatively poor material properties, the utility model can increase the contact area when the hinge shaft collides with the inner wall of the sliding hole by setting the first curved surface and the second curved surface, thereby reducing the pressure and thus reducing the deformation and wear of the inner wall of the sliding hole.

[0018] Furthermore, a buffer pad is provided on the first curved surface and / or the second curved surface.

[0019] The utility model can reduce the impact force between the hinge shaft and the inner wall of the sliding hole by arranging the buffer pad.

[0020] Furthermore, a shaft sleeve is fixedly provided on the inner wall of the rotating hole of the single ear plate, and the rotating part is rotatably connected to the rotating hole of the single ear plate through the shaft sleeve.

[0021] Since the hinge shaft is generally made of alloy steel with relatively good material properties, and the upper and lower swings are generally made of cast steel or low-alloy steel with relatively poor materials, the utility model arranges a shaft sleeve. After the shaft sleeve is installed, there is no relative movement between the outer wall of the shaft sleeve and the single ear plate, and the inner wall of the shaft sleeve moves relative to the hinge shaft, thereby avoiding wear and deformation of the single ear plate.

[0022] Furthermore, the hem includes a base plate, a dowel pin is fixedly arranged in the middle of the base plate, a double-ear fork seat is arranged above the base plate, a square hole is opened in the middle of the double-ear fork seat, the top end of the dowel pin is inserted into the square hole, and a plurality of pads and locking blocks are arranged between the dowel pin and the inner wall of the square hole. The locking block is wedge-shaped and is used to fix the dowel pin and the double-ear fork seat, and the pad is used for plane position adjustment and rotation adjustment of the support.

[0023] The utility model provides a plurality of cushion blocks, which facilitates the adjustment of the plane position of the support and is conducive to precise adjustment.

[0024] Furthermore, a cam is arranged on the base plate, and both ends of the double-ear fork seat are pressed on the cam. A plurality of pads are arranged between the cam and the base plate, and the pads are used for height adjustment and rotation adjustment of the support.

[0025] The utility model achieves the purpose of height adjustment and rotation adjustment by arranging a plurality of pads and increasing or reducing the number of the pads, and can also better transmit vertical pressure.

[0026] The beneficial effects of the utility model are as follows: the utility model arranges the first slide plate and the second slide plate between the hinge shaft and the sliding hole, and the upper swing and the lower swing are relatively slid along the bridge direction through the first slide plate and the second slide plate, and the wear will only occur between the first slide plate and the second slide plate, and will not affect the surface of the hinge shaft and the sliding hole, which can avoid rust of the hinge shaft and the double ear fork and improve the service life of the structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a structural schematic diagram of the support of the utility model along the bridge direction;

[0028] Figure 2 This is a structural schematic diagram of the utility model support in the transverse direction of the bridge;

[0029] Figure 3 This is a schematic diagram of the connection structure of the hinge shaft along the bridge direction of the utility model;

[0030] Figure 4 This is a schematic diagram of the connection structure of the hinge axis in the transverse direction of the bridge of the utility model;

[0031] Figure 5 This is a schematic diagram of the structure of the hinge shaft of the utility model;

[0032] Figure 6 for Figure 2 Enlarged view of point A in the middle;

[0033] Figure 7 for Figure 2 Enlarged view of point B in the middle;

[0034] Figure 8 for Figure 1 Enlarged view of point C in the middle;

[0035] Fig. 9 for Figure 1 Enlarged view of point D in the middle;

[0036] Fig.10 for Figure 2 Enlarged view of point E in the middle.

[0037] Reference numerals:

[0038] Upper swing 1; single ear plate 11; shaft sleeve 12;

[0039] Hem 2; double ear fork 21; sliding hole 211; second slide plate 212; sliding space 213; first arc surface 214; limit baffle 215; double ear fork seat 22; base plate 23; pad 231; dowel pin 24; pad 25; locking block 26; cam 27; anchor box 28; adjustable pull plate 281; adjusting pad 282; drainage steel pipe 283; base anchor rod 29;

[0040] Hinge shaft 3; rotating part 31; sliding part 32; slide plate groove 321; first slide plate 322; second arc surface 323;

[0041] Upper anchor steel bar 4. DETAILED DESCRIPTION

[0042] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0043] like Figure 1 As shown, this embodiment provides a straddle-type monorail transportation PC rail beam support, including an upper swing 1 and a lower swing 2.

[0044] A plurality of upper anchoring steel bars 4 are welded on the top of the upper pendulum 1, and the upper pendulum 1 is cast together with the track beam through the upper anchoring steel bars 4. Figure 2As shown, the outer upper anchoring steel bar 4 is arranged at a certain angle to the vertical direction, which can ensure a reliable connection between the support and the track beam when the support is subjected to vertical tension.

[0045] The lower hem 2 is arranged below the upper hem 1, and the lower hem 2 and the upper hem 1 are connected via a hinge shaft 3. Figure 5 As shown, the hinge shaft 3 includes a rotating part 31 and a sliding part 32. The rotating part 31 is cylindrical, and the sliding part 32 is integrally arranged at both ends of the rotating part 31. The rotating part 31 is square, and the two sides of the rotating part 31 along the bridge direction are arranged as arc surfaces, namely, second arc surfaces 323. The upper and lower surfaces of the rotating part 31 are provided with square slide grooves 321, and the bottom of the slide groove 321 is provided with threaded holes. A first slide 322 with the same size as the slide groove 321 is placed in the slide groove 321, and the first slide 322 is fixed to the bottom of the slide groove 321 by bolts, and the top of the bolts fixing the first slide 322 does not protrude from the outer surface of the first slide 322.

[0046] like Figure 2 As shown, two single-ear plates 11 are symmetrically arranged at the bottom of the upper hem 1, and the lower hem 2 includes a double-ear fork seat 22, on which two double-ear forks 21 are symmetrically arranged. The two double-ear forks 21 are arranged corresponding to the single-ear plates 11, and the single-ear plates 11 can be inserted into the double-ear forks 21. Figure 4 As shown, the single-ear plate 11 has a rotating hole along the transverse bridge direction, a sleeve 12 is fixedly arranged on the inner wall of the rotating hole, and the rotating portion 31 of the hinge shaft 3 is rotatably arranged in the rotating hole, wherein the sleeve 12 is made of a hard and wear-resistant material to increase the service life of the hinge shaft 3. The double-ear fork 21 has a sliding hole 211 along the transverse bridge direction, and the sliding portions 32 at both ends of the rotating portion 31 of the hinge shaft 3 are inserted into the sliding hole 211. The top and bottom of the sliding hole 211 are welded with a second slide plate 212, and the first slide plate 322 on the hinge shaft 3 can slide relative to the second slide plate 212.

[0047] like Figure 3 As shown, the length of the second slide plate 212 along the bridge direction is greater than the length of the first slide plate 322 along the bridge direction, and a sliding space 213 is set between the sliding portion 32 of the hinge shaft 3 and the inner wall of the sliding hole 211 on both sides along the bridge direction, so that the upper swing 1 can slide relative to the lower swing 2 along the bridge direction, and the sliding hole 211 is provided with a first arc surface 214 on both sides along the bridge direction. The first arc surface 214 cooperates with the second arc surface 323 to increase the contact area when the hinge shaft 3 collides with the inner wall of the sliding hole 211, reduce the pressure, and thus reduce the deformation and wear of the inner wall of the sliding hole 211. In order to further reduce the impact and wear on the sliding hole 211, a buffer pad is set on the first arc surface 214 and / or the second arc surface 323.

[0048] It can be understood that when the upper swing 1 can slide relative to the lower swing 2 along the longitudinal direction of the bridge, the friction force is borne by the first slide plate 322 and the second slide plate 212, and no wear is caused on the surface of the hinge shaft 3 and the sliding hole 211.

[0049] In this embodiment, the first slide plate 322 is made of a copper alloy slide plate, and the second slide plate 212 is made of a mirror stainless steel plate. Since the hardness of the copper alloy slide plate is less than that of the mirror stainless steel plate, when the first slide plate 322 and the second slide plate 212 rub against each other, the first slide plate 322 is the main wear and tear, which prevents the second slide plate 212 from forming grooves on its surface during long-term friction, thereby affecting the sliding of the first slide plate 322. The thickness of the first slide plate 322 should be controlled to meet the inevitable wear adaptability within the design service life, and a large amount of compression deformation will not occur due to the excessive thickness of the first slide plate 322 material, so as to ensure that the first slide plate 322 is always in contact with the second slide plate 212. In this embodiment, the thickness of the first slide plate 322 is 5 to 10 mm.

[0050] like Figure 4 As shown, a limit baffle 215 is fixed on the outer side of the double ear fork 21 by bolts. The solution of the limit baffle 215 plus bolts is used to limit the axial displacement of the hinge shaft 3, which has little impact on the main structures such as the upper pendulum 1, the lower pendulum 2 and the hinge shaft 3, and can achieve a good limiting effect.

[0051] like Figure 6 , 7 As shown, the hem 2 includes a base plate 23 arranged below the double-ear fork seat 22, two cams 27 are symmetrically arranged on the base plate 23, and the base plate 23 supports the bottom of the double-ear fork seat 22 near the two sides through the cams 27. A dowel pin 24 is welded in the middle of the base plate 23, and a square hole is opened in the middle of the double-ear fork seat 22. The top of the dowel pin 24 is square, and the top of the dowel pin 24 is inserted into the square hole. A plurality of pads 25 and locking blocks 26 are arranged between the dowel pin 24 and the inner wall of the square hole. The plurality of pads 25 and locking blocks 26 can fill the gap between the dowel pin 24 and the inner wall of the square hole, thereby fixing the dowel pin 24 and the double-ear fork seat 22. The locking blocks 26 are wedge-shaped and two are arranged, and the tips of the two locking blocks 26 face opposite directions. The plurality of pads 25 facilitate the adjustment of the plane position and rotation adjustment of the support, and are conducive to precise adjustment.

[0052] like Figure 7 As shown, a plurality of pads 231 are arranged between the cam 27 and the base plate 23. By increasing or decreasing the number of the pads 231, the purpose of height adjustment and rotation adjustment can be achieved, and at the same time, the vertical pressure can be better transmitted.

[0053] like Figures 8 to 10As shown, an anchor box 28 is set below the base plate 23 by welding, and a base anchor rod 29, an adjustable pull plate 281, and an adjustment pad 282 are set in the anchor box 28. The adjustable pull plate 281 is set at the bottom of the anchor box 28. The upper end of the base anchor rod 29 passes through the base plate 23, the pad 231, the cam 27, the double-ear fork seat 22 and is fixed to the double-ear fork seat 22 by bolts. The lower end of the base anchor rod 29 passes through the adjustable pull plate 281 and is fixed to the anchor box 28 through the adjustment pad 282 and the pin. The bottom end of the anchor box 28 is set to an inclined surface, and a drainage hole is opened at the bottom end of the anchor box 28 and a drainage steel pipe 283 is set to prevent water accumulation inside the anchor box 28 from aggravating the rust of the anchor box 28, thereby affecting the service life of the support.

[0054] The straddle-type monorail transportation PC rail beam support has good stress-bearing capacity, wherein the dowel 24 transmits horizontal shear force, the cam 27 transmits vertical pressure, and the vertical tension is transmitted through the base anchor rod 29 connecting the hem 2, the cam 27 and the base plate 23. The force path is clear, the primary and secondary force-bearing components are clearly distinguished, and there is no weak link in the force, which reduces the fatigue damage of a single component due to the complex forces of bending, shearing and torsion.

[0055] In terms of adjustability, the vertical overall height adjustment, the adjustment of the cross bridge to the left high and the right low or the left low and the right high, the plane position adjustment along the bridge, the plane position adjustment along the cross bridge, etc. can be achieved in all directions. Moreover, through the special design of the contact between the components, the force transmission system of the components before and after the adjustment is not affected, which increases the reliability of the support. Specifically, ① if the support needs to be raised or lowered as a whole, the adjustment scheme is to increase or decrease the same number of cams 27 and the pads 231 between the base plate 23 on both sides at the same time; ② if the support needs to be adjusted to the left high and the right low or the left low and the right high on the cross bridge, the adjustment scheme is to increase or decrease different numbers of cams 27 and the pads 231 between the base plate 23 on both sides as required. ③ If the plane position adjustment along the bridge is required, the adjustment scheme is to loosen the locking nut of the base anchor rod 29 and the locking block 26 of the dowel 24, move all the components above the base plate 23 to the required position, lock the nut of the base anchor rod 29, adjust the number of pads 25 of the dowel 24, and reinsert the locking block 26 to tighten. ④ If the horizontal position adjustment is required, the adjustment scheme is similar to the horizontal position adjustment in the longitudinal direction of the bridge. After any of the above adjustment measures are implemented, the contact status between the components needs to be checked. In order to facilitate adjustment, the support should be free from external forces as much as possible before adjustment. If adjustment is required during operation, the beam body needs to be lifted by equipment such as jacks before linear adjustment.

[0056] The embodiments described above are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, a person skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. A straddle-type monorail transportation PC rail beam support, characterized in that: The invention comprises an upper hem (1) and a lower hem (2), wherein a single-ear plate (11) is arranged at the bottom of the upper hem (1), a rotating hole is provided in the single-ear plate (11) along the horizontal direction, a hinge shaft (3) is rotatably arranged in the rotating hole, a double-ear fork (21) is arranged at the top of the lower hem (2), a sliding hole (211) is provided on the double-ear fork (21), two ends of the hinge shaft (3) are inserted into the sliding hole (211), and mutually movable joints are arranged between the top and bottom of the hinge shaft (3) and the sliding hole (211). A first slide plate (322) and a second slide plate (212) are provided for sliding with each other, wherein the first slide plate (322) is fixedly arranged on the hinge shaft (3), and the second slide plate (212) is fixedly arranged on the inner wall of the sliding hole (211), and a sliding space (213) is provided between the two sides of the hinge shaft (3) along the longitudinal direction and the inner wall of the sliding hole (211), so that the upper swing (1) can slide relative to the lower swing (2) along the longitudinal direction through the first slide plate (322) and the second slide plate (212).

2. The straddle-type monorail transportation PC rail beam support according to claim 1 is characterized in that: The upper and lower surfaces of the portion of the hinge shaft (3) inserted into the sliding hole (211) are plane and both have a slide plate groove (321). The first slide plate (322) is detachably fixed in the slide plate groove (321). The first slide plate (322) abuts against the inner wall of the slide plate groove (321). The thickness of the first slide plate (322) is greater than the depth of the slide plate groove (321).

3. The straddle-type monorail transportation PC rail beam support according to claim 1 or 2, characterized in that: The length of the second slide plate (212) along the bridge direction is greater than the length of the first slide plate (322) along the bridge direction, and the hardness of the first slide plate (322) is less than the hardness of the second slide plate (212).

4. The straddle-type monorail transportation PC rail beam support according to claim 3 is characterized in that: The first slide plate (322) is a copper alloy slide plate, and the second slide plate (212) is a mirror-finished stainless steel plate.

5. The straddle-type monorail transportation PC rail beam support according to claim 4 is characterized in that: The thickness of the first slide plate (322) is 5 to 10 mm.

6. The straddle-type monorail transportation PC rail beam support according to claim 1 or 2, characterized in that: The hinge shaft (3) comprises a rotating part (31) and a sliding part (32), wherein the sliding part (32) is arranged at both ends of the rotating part (31), the rotating part (31) is rotatably arranged in the rotating hole of the single-ear plate (11), the sliding part (32) is inserted into the sliding hole (211) of the double-ear fork (21), the sliding hole (211) is provided with a first arc surface (214) on both sides along the bridge direction, and the sliding part (32) is provided with a second arc surface (323) matched with the first arc surface (214) on both sides along the bridge direction.

7. The straddle-type monorail transportation PC rail beam support according to claim 6 is characterized in that: A buffer pad is provided on the first curved surface (214) and / or the second curved surface (323).

8. The straddle-type monorail transportation PC rail beam support according to claim 6, characterized in that: A shaft sleeve (12) is fixedly arranged on the inner wall of the rotating hole of the single ear plate (11), and the rotating part (31) is rotatably connected to the rotating hole of the single ear plate (11) via the shaft sleeve (12).

9. The straddle-type monorail transportation PC rail beam support according to claim 1 or 2, characterized in that: The hem (2) comprises a base plate (23), a dowel pin (24) is fixedly arranged in the middle of the base plate (23), a double-ear fork seat (22) is arranged above the base plate (23), a square hole is provided in the middle of the double-ear fork seat (22), the top end of the dowel pin (24) is inserted into the square hole, a plurality of cushion blocks (25) and a locking block (26) are arranged between the dowel pin (24) and the inner wall of the square hole, the locking block (26) is wedge-shaped and is used to fix the dowel pin (24) and the double-ear fork seat (22), and the cushion block (25) is used for plane position adjustment and rotation adjustment of the support.

10. The straddle-type monorail transportation PC rail beam support according to claim 9, characterized in that: A cam (27) is arranged on the base plate (23), and both ends of the double-ear fork seat (22) are pressed on the cam (27). A plurality of pads (231) are arranged between the cam (27) and the base plate (23), and the pads (231) are used for height adjustment and rotation adjustment of the support.

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