New type of straddle type monorail beam tension bearing

Abstract

The invention discloses a novel straddle-type monorail beam tension bearing, which relates to the technical field of bridge bearings. The invention mainly sets two gantry frames disposed on the top surface of the bottom plate and a ball head shaft with a ball head to form a straddle-type monorail beam tension bearing. During the installation process, the beam support frame and the bottom plate can rotate around the ball head shaft to conveniently achieve longitudinal slope adjustment. At the same time, since a ball pair is formed between the sliding block and the ball head shaft, the tension bearing provided by the invention also has the function of lateral slope adjustment. The structure of the entire tension bearing is clear and easy to assemble.

Description

Technical Field

[0001] The invention relates to the technical field of bridge supports, and in particular to a novel straddle-type monorail beam tension support. Background Art

[0002] The straddle-type monorail transportation system is mainly composed of the running vehicle system, the track bridge system, the turnout system and other structures. As the load-bearing structure in the straddle-type monorail transportation system, the reliability and stability of the turnout system directly affect the driving safety of the vehicles and is an important part of ensuring the normal operation of the system.

[0003] As the main force-transmitting component of the monorail bridge system, the bearing bears various loads from the track bridge and vehicles. Its performance directly affects the stability and safety of the train. It must have a large tensile capacity and lateral stiffness in the entire straddle-type monorail transportation system.

[0004] The cross section of the track beam has the characteristics of small transverse dimension and large vertical height. Once it is subjected to eccentric load or the vehicle runs to the curved beam, it will generate a large overturning moment and centrifugal force. The traditional tension bearings used in straddle-type monorail transportation currently adopt the basic structural form of cast steel hinged shaft bearings introduced from abroad, which can better adapt to the longitudinal rotation of the track beam and the ability to resist lateral bending moment. However, when the hinged shaft bearing is installed, the tie rod anchor box needs to be embedded in the pier. However, due to the existence of installation errors, the vertical installation of the tie rod cannot be guaranteed, and it cannot adapt to linear secondary adjustment, resulting in the tie rod being unable to bear vertical force. The tie rod is easily damaged under the combined action of tension and shear force. Therefore, the development of a new structural form of monorail beam tension bearing with a reasonable structure and convenient adjustment / installation has become a technical problem that needs to be solved in the field of monorail transportation construction. Summary of the invention

[0005] The present invention aims to provide a novel straddle-type monorail beam tension support, which has a clear structure and is convenient for adjusting the longitudinal slope during installation.

[0006] The embodiment of the present invention is achieved as follows:

[0007] The new type of straddle-type monorail beam tensile bearing includes:

[0008] A beam support frame and a bottom plate, wherein the beam support frame is arranged above the bottom plate;

[0009] Two gantries, the two gantries are fixedly connected to the top surface of the bottom plate and are arranged on both sides in the horizontal direction, the beam support frame is located between the two gantries, and the two sides of the gantries facing each other are provided with a slide groove extending in the longitudinal direction and closed at both ends, and the slide groove is equipped with a sliding block that can slide along the extension direction of the slide groove, and ball grooves are formed on the sliding blocks on both sides;

[0010] A ball head shaft, wherein the ball head shaft is arranged between the gantries on both sides, the axial direction of the ball head shaft is arranged horizontally, ball heads are respectively formed on both ends of the ball head shaft, the ball heads on both sides respectively form ball pairs with the ball grooves on the corresponding sides, the ball head shaft is located in the middle of the two ball heads and penetrates into the beam support frame and rotates with the beam support frame, and the ball heads on both sides respectively abut against the side walls of the beam support frame on opposite sides in the horizontal direction.

[0011] The present invention mainly sets two gantry frames placed on the top surface of the bottom plate and a ball head shaft with a ball head to form a straddle-type monorail beam tension support. During the installation process, the beam support frame and the bottom plate can rotate around the ball head shaft to conveniently adjust the longitudinal slope. The structure of the entire tension support is clear and easy to assemble.

[0012] Preferably, the ball head shaft is mainly formed by coaxially connecting two sub-shafts, and the ball heads are respectively formed on the ends of the two sub-shafts facing away from each other.

[0013] Preferably, the ends of the two sub-axes facing each other are provided with external threads, and also include a connecting tube that is simultaneously sleeved on the ends of the two sub-axes facing each other, the inner wall of the connecting tube is provided with internal threads that match the external threads, and the connecting tube is threadedly connected to the two sub-axes.

[0014] Preferably, a slide plate for slidingly cooperating with the slide groove is fixedly provided on the slide block.

[0015] Preferably, the sliding block is mainly composed of an upper sliding block and a lower sliding block, and both the upper sliding block and the lower sliding block are provided with hemispherical grooves, and the hemispherical grooves on the upper sliding block and the lower sliding block enclose the ball groove.

[0016] Preferably, the upper sliding block and the lower sliding block are symmetrically arranged along the horizontal plane where the center of the ball head is located.

[0017] Preferably, a height-adjusting pad is provided between the gantry on one side and the top surface of the base plate, or a height-adjusting pad is provided between the gantry on both sides and the top surface of the base plate.

[0018] Preferably, an upper anchoring structure is provided on the beam support frame; the upper anchoring structure includes an upper anchoring bolt, an upper anchoring sleeve and an upper anchor rod, or the upper anchoring structure includes an upper anchor rod.

[0019] Preferably, a lower anchoring structure is provided on the base plate, and the lower anchoring structure includes a lower anchoring bolt, a lower anchoring sleeve and a lower anchor rod.

[0020] Preferably, the gantry is provided with an oblong bolt hole, the length direction of the cross section of the oblong bolt hole extends laterally, the lower anchor bolt passes through the oblong bolt hole and then penetrates the base plate, and the portion extending out of the base plate is connected to the lower anchor sleeve to fix the gantry and the base plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 , Figure 2 This is a schematic diagram of the structure of Example 1 provided by the present invention;

[0023] Figure 3 A half-section schematic diagram of Example 1 provided by the present invention in the longitudinal direction;

[0024] Figure 4 and Figure 5 A half-section schematic diagram of Example 1 provided by the present invention in the horizontal direction;

[0025] Figure 6 This is a schematic diagram of the oblong bolt hole and the side block in Example 1 provided by the present invention.

[0026]

Specific symbols

[0027] 1-upper anchoring structure, 11-upper anchor rod;

[0028] 2- beam support frame;

[0029] 3-gantry, 31-long round bolt hole;

[0030] 4-ball shaft, 41-ball head, 42-coupling cylinder;

[0031] 5-sliding block, 51-upper sliding block, 52-lower sliding block, 53-sliding plate;

[0032] 6-bottom plate, 61-side block;

[0033] 7-lower anchoring structure, 71-lower anchor rod, 72-lower anchoring bolt, 73-lower anchoring sleeve. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0035] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0037] In the description of the present invention, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the product of the invention is usually placed when in use. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, if the terms "first", "second" and the like appear in the description of the present invention, they are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0038] In addition, if the terms "horizontal" or "vertical" appear in the description of the present invention, it does not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0039] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] Example 1

[0041] See also Figures 1 to 6 This embodiment proposes a novel straddle-type monorail beam tension support, comprising:

[0042] A beam support frame 2 and a bottom plate 6, wherein the beam support frame 2 is arranged above the bottom plate 6;

[0043] Two gantries 3, the two gantries 3 are fixedly connected to the top surface of the bottom plate 6 and are disposed on both sides in the horizontal direction, the beam support frame 2 is located between the gantries 3 on both sides, and the gantries 3 on both sides are provided with sliding grooves extending in the longitudinal direction and closed at both ends on the sides facing each other, and the sliding grooves are equipped with sliding blocks 5 that can slide along the extension direction of the sliding grooves, and ball grooves are formed on the sliding blocks 5 on both sides;

[0044] The ball head shaft 4 is arranged between the gantries 3 on both sides, and the axial direction of the ball head shaft 4 is arranged horizontally. Ball heads 41 are respectively formed on both ends of the ball head shaft 4. The ball heads 41 on both sides form ball pairs with the ball grooves on the corresponding sides respectively. The part of the ball head shaft 4 located between the two ball heads 41 is inserted into the beam support frame 2 and rotatably cooperates with the beam support frame 2. The ball heads 41 on both sides are respectively abutted against the side walls of the beam support frame 2 on opposite sides in the horizontal direction.

[0045] During installation, the above-mentioned beam support frame 2 is mainly used to support the beam of the bridge, while the base plate 6 is used to anchor with the pier; taking the ball head shaft 4 as an example, the beam support frame 2 and the ball head shaft 4 are in a rotational matching relationship, and the rotation plane between the two is parallel to the longitudinal vertical plane. At the same time, the ball heads 41 on both sides are respectively abutted against the side walls of the beam support frame 2 on the opposite sides in the horizontal direction to limit the relative displacement of the ball head shaft 4 and the beam support frame 2 in the horizontal direction, so the vertical compressive load, vertical tensile load and horizontal load borne by the beam support frame 2 can all be transmitted to the ball head shaft 4; the sliding block 5 that forms a ball pair with the ball head shaft 4 correspondingly bears the corresponding load and transmits it to the gantry 3, and then to the base plate 6.

[0046] When displacement occurs between the beam and the pier and longitudinal slope adjustment is required, the beam support frame 2 and the base plate 6 can rotate around the ball head axis 4 to adjust the rotation phase between the two, so that the entire support has the longitudinal slope adjustment function.

[0047] In addition, in this embodiment, the beam support frame 2 is provided with a lower slot for the ball head shaft 4 to penetrate and rotate with the ball head shaft 4. To facilitate the assembly of the ball head shaft 4, the ball head shaft 4 is mainly composed of two sub-shafts connected coaxially, and the ball heads 41 are respectively formed on the ends of the two sub-shafts facing away from each other. This structure allows the implementer to assemble the sub-shafts in batches during assembly, which is more convenient.

[0048] More specifically, in this embodiment, in order to ensure the convenience of connecting the sub-axes on both sides and the strength after the connection, the ends of the two sub-axes facing each other are provided with external threads, and also include a connecting tube 42 that is simultaneously sleeved on the ends of the two sub-axes facing each other, and the inner wall of the connecting tube is provided with an internal thread that is compatible with the external thread, and the connecting tube 42 is threadedly connected to the two sub-axes.

[0049] In the support provided in this embodiment, in addition to transferring the load, the sliding block 5 can also slide along the longitudinal direction with the ball head shaft 4 and the beam support frame 2, so as to realize the function of adjusting the support in the longitudinal direction. The sliding block 5 is fixed with a slide plate 53 for slidingly cooperating with the slide groove to reduce the friction coefficient and improve the wear resistance. In addition, in order to facilitate the assembly between the sliding block 5 and the ball head 41, in this embodiment, the sliding block 5 is mainly composed of an upper sliding block 51 and a lower sliding block 52, and the upper sliding block 51 and the lower sliding block 52 are both provided with a hemispherical groove, and the hemispherical grooves on the upper sliding block 51 and the lower sliding block 52 enclose the ball groove, wherein the upper sliding block 51 and the lower sliding block 52 are symmetrically arranged along the horizontal plane where the center of the ball head 41 is located. This structure allows the implementer to assemble the sliding block 5 and the ball head shaft 4 by only enclosing the hemispherical grooves of the upper sliding block 51 and the lower sliding block 52 on the ball head 41, and then inserting the whole into the sliding groove, which makes assembly more convenient.

[0050] For the above-mentioned support, it also has the functions of adjusting the transverse slope and the vertical height. Specifically, in this embodiment, a height adjustment pad is provided between the gantry 3 on one side and the top surface of the bottom plate 6, so that the sliding block 5 in the gantry 3 on one side is higher than the sliding block 5 in the gantry 3 on the other side. At this time, the ball head shaft 4 and the beam support frame 2 are inclined in the transverse direction, thereby realizing the adjustment of the transverse slope. The implementer can also provide height adjustment pads between the gantry 3 and the top surface of the bottom plate 6 on both sides, so that the height adjustment of the support can be realized. It can be understood that the heights of the height adjustment pads on both sides can have a certain difference, so that the support has the function of adjusting the transverse slope while realizing the height adjustment of the support. It can be understood here that: since a ball pair is formed between the ball head shaft 4 and the sliding block 5, the sliding block 5 will not be affected when the ball head shaft 4 is inclined.

[0051] More specifically, in the present embodiment, an upper anchoring structure 1 is provided on the beam support frame 2; the upper anchoring structure 1 includes an upper anchor rod 11 (implementers may replace the upper anchoring bolts, upper anchoring sleeves and upper anchor rod 11), and a lower anchoring structure 7 is provided on the base plate 6, and the lower anchoring structure 7 includes a lower anchoring bolt 72, a lower anchoring sleeve 73 and a lower anchor rod 71.

[0052] To ensure that the support has the function of horizontal positioning and adjustment, please refer to Figure 6 In this embodiment, an oblong bolt hole 31 is provided on the gantry 3, and the length direction of the cross section of the oblong bolt hole 31 extends horizontally. The lower anchor bolt 72 passes through the oblong bolt hole 31 and then penetrates the base plate 6. The lower anchor sleeve 73 is connected to the portion extending out of the base plate 6 to fix the gantry 3 and the base plate 6.

[0053] The implementer can adjust the relative position between the gantry 3 and the base plate 6 in the horizontal direction through the oblong bolt hole, so that the support has the function of horizontal positioning adjustment. In this embodiment, the lower anchor bolt 72 cooperates with the lower anchor sleeve 73 to form friction shear resistance between the bottom of the gantry 3 and the top of the bottom, thereby transmitting horizontal lateral loads.

[0054] In addition, the base plate 6 is also formed with side blocks 61 on the outer sides of the gantries 3 on the horizontal direction for abutting against the gantry 3. After installation, the side blocks 61 are filled with contact with the gantry 3 to cooperate with the lower anchor bolts 72 to form a double horizontal lateral load transfer.

[0055] The load transfer sequence of this embodiment is clear. When subjected to tensile load, compressive load and lateral horizontal load, the parts are subjected to different forces. In detail:

[0056] Vertical compressive load transfer: beam body - beam body support frame 2 - ball head shaft 4 - lower sliding block 52 - bottom plate 6 - pier;

[0057] Horizontal load transfer: beam body - upper anchoring structure 1 - beam body support frame 2 - ball head shaft 4 - upper and lower sliding blocks 51, 52 (cooperative transfer) - bottom plate 6 - lower anchoring structure 7;

[0058] Vertical tensile load transfer: beam body-upper anchor structure 1-beam body support frame 2-ball head shaft 4-upper sliding block 51-gantry 3-lower anchor structure 7.

[0059] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A new type of straddle-type monorail beam tension support, characterized in that: include: A beam support frame and a bottom plate, wherein the beam support frame is arranged above the bottom plate; Two gantries, the two gantries are fixedly connected to the top surface of the bottom plate and are arranged on both sides in the horizontal direction, the beam support frame is located between the two gantries, and the two sides of the gantries facing each other are provided with a slide groove extending in the longitudinal direction and closed at both ends, and the slide groove is equipped with a sliding block that can slide along the extension direction of the slide groove, and ball grooves are formed on the sliding blocks on both sides; A ball head shaft, the ball head shaft is arranged between the two side gantry frames, the axial direction of the ball head shaft is arranged in the transverse direction, and ball heads are formed on both ends of the ball head shaft respectively, and the ball heads on both sides respectively form ball pairs with the ball grooves on the corresponding sides, and the part of the ball head shaft located between the two ball heads penetrates into the beam support frame and rotates with the beam support frame, and the ball heads on both sides respectively abut against the side walls of the beam support frame on the opposite sides in the transverse direction; the ball head shaft is mainly composed of two sub-axes coaxially connected, and the ball heads respectively form On the ends of the two sub-axes facing away from each other; the ends of the two sub-axes facing each other are both provided with external threads, and also include a coupling cylinder that is simultaneously sleeved on the ends of the two sub-axes facing each other, the inner wall of the coupling cylinder is provided with an internal thread that matches the external thread, and the coupling cylinder is threadedly connected to the two sub-axes; the sliding block is mainly composed of an upper sliding block and a lower sliding block, and the upper sliding block and the lower sliding block are both provided with hemispherical grooves, and the hemispherical grooves on the upper sliding block and the lower sliding block enclose the ball groove; A lower anchoring structure is provided on the base plate, and the lower anchoring structure includes a lower anchoring bolt, a lower anchoring sleeve and a lower anchor rod; an oblong bolt hole is provided on the gantry, and the length direction of the cross-section of the oblong bolt hole extends laterally. The lower anchoring bolt passes through the oblong bolt hole and then penetrates the base plate, and the lower anchoring sleeve is connected to the portion extending out of the base plate to fix the gantry and the base plate.

2. A novel straddle-type monorail beam tension support as claimed in claim 1, characterized in that: The sliding block is fixedly provided with a sliding plate for slidingly cooperating with the sliding groove.

3. A novel straddle-type monorail beam tension support as claimed in claim 1, characterized in that: The upper sliding block and the lower sliding block are symmetrically arranged along the horizontal plane where the center of the ball head is located.

4. A novel straddle-type monorail beam tension support as claimed in claim 1, characterized in that: A height-adjusting pad is provided between the gantry on one side and the top surface of the bottom plate, or a height-adjusting pad is provided between the gantry on both sides and the top surface of the bottom plate.

5. A novel straddle-type monorail beam tension bearing as claimed in claim 1, characterized in that: An upper anchoring structure is provided on the beam support frame; the upper anchoring structure includes an upper anchoring bolt, an upper anchoring sleeve and an upper anchor rod, or the upper anchoring structure includes an upper anchor rod.

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