Construction equipment and its control system for erecting crossbeams

Abstract

This invention discloses a construction device and its control system for erecting crossbeams. The construction device includes multiple lifting subsystems, each comprising: an automatic clamp capable of gripping or releasing the bridge pier; an upper connecting seat and a lower connecting seat located below it, with the bridge pier passing through both, and each accommodating one of the automatic clamps; and a rigid chain, with several rigid chains arranged between the upper and lower connecting seats, each chain's head link and drive wheel connected, one to the upper connecting seat and the other to the lower connecting seat. During ascent, the rigid chains, the automatic clamps in the upper and lower connecting seats cooperate to complete descent and ascent. By loading the crossbeam and mechanical clamps onto the upper connecting seat, the transport of the crossbeam and mechanical clamps between the upper end of the bridge pier and the ground is completed.

Description

Technical Field

[0001] This invention relates to the field of equipment technology for erecting or assembling bridges, and more particularly to construction equipment and its control system for erecting crossbeams. Background Technology

[0002] The existing construction methods for cap beams are relatively primitive, mainly including ground-mounted scaffolding construction, clamp-type scaffolding construction, and embedded part / steel bar scaffolding construction. All of these are completed by manual labor in conjunction with engineering machinery. The operation methods are relatively primitive and backward, posing significant safety hazards. The construction period is greatly affected by the weather, and the quality of products made on-site is inconsistent. As the workforce ages, the labor shortage problem is becoming increasingly serious.

[0003] To make the construction of the bridge girder more convenient, efficient, economical, and safe, China Railway Bridge Bureau Group Co., Ltd. proposed an automatic lifting clamp system in its patent (CN208594486U), while Sichuan Topda Machinery Technology Co., Ltd. provided a stepping climbing machine in its patent (CN216663832U). Both systems use the cooperation of upper and lower clamps and a linear output device to lift and push the crossbeam to the top of the beam column. The linear output device used is a jack or lifting cylinder. Jacks or lifting cylinders have poor force balance and synchronization, are costly, and require continuous operation of the hydraulic system to maintain oil pressure when in a holding state. Furthermore, the hydraulic system is prone to leakage and requires continuous oil replenishment. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a construction device and its control system for erecting crossbeams, thereby improving the safety of the crossbeam construction process.

[0005] The present invention achieves its objective through the following technical solution: a construction device for erecting crossbeams, which transports crossbeams and mechanical clamps between the upper end of a bridge pier and the ground, comprising multiple lifting subsystems, wherein the lifting subsystem includes:

[0006] The automatic clamp consists of several sub-lobes connected in a ring shape. The automatic clamp tightens or loosens the bridge pier by the sub-lobes coming together or separating from each other.

[0007] The upper connecting seat is inserted into the pier, and the upper connecting seat contains an automatic clamp.

[0008] The lower connecting seat is inserted into the pier, and the lower connecting seat contains an automatic clamp. The lower connecting seat is located below the upper connecting seat.

[0009] A rigid chain is provided between the upper connecting seat and the lower connecting seat. The head link of the rigid chain and the drive wheel are connected to the upper connecting seat and the lower connecting seat, respectively. The bending directions of the rigid chains are clockwise and counterclockwise.

[0010] The crossbeam and mechanical clamp are mounted on the upper connecting seat.

[0011] In a preferred embodiment, the upper connecting seat includes a first groove and a second groove located above the first groove, the opening of the first groove facing the axis of the pier, and the opening of the second groove facing upward.

[0012] In a preferred embodiment, a portion of the upper wall of the first groove forms the bottom of the second groove.

[0013] In a preferred embodiment, the depth of the second groove is greater than the height of the mechanical clamp.

[0014] In a preferred embodiment, a plurality of wheel seats are provided on the upper and / or lower surface of the upper connecting seat, and a rotating wheel is provided on the wheel seat, the rotating wheel rolling along the surface of the pier; and / or

[0015] Multiple wheel seats are provided on the upper and / or lower surface of the lower connecting seat, and a rotating wheel is provided on the wheel seat, and the rotating wheel rolls along the surface of the pier.

[0016] In a preferred embodiment, the automatic clamp includes:

[0017] The two sub-lobes each have a first end and a second end. The first ends of the two sub-lobes are connected by a pin. When the end faces of the second ends of the two sub-lobes come into contact, the automatic clamp closes. The second end of each sub-lobe is provided with a lug extending along its end face. The side of the lug that contacts the other lug is the first side, and the other side is the second side.

[0018] A locking device for bringing the first surfaces of the two lugs into contact or separating them;

[0019] The locking device includes:

[0020] A sliding groove is provided on the second surface of the lug, the sliding groove having an arc-shaped groove bottom, the generatrix of the arc-shaped groove bottom being parallel to the second surface of the lug;

[0021] A slider is disposed within the groove, the slider having a cylindrical surface with a radius equal to that of the bottom arc surface of the groove;

[0022] A pull rod passes through through holes provided on the lugs, grooves, and sliders of the two sub-lobes. The pull rod includes a fixed end and a movable end. The fixed end of the pull rod is connected to a motor mounted on one of the sub-lobes, and the movable end of the pull rod is threadedly connected to a nut.

[0023] In a preferred embodiment, the size of the through holes provided on the lug, the groove, and the slider is such that the pull rod can deflect within them.

[0024] In a preferred embodiment, the locking device further includes a limiting structure for restricting the rotation of the nut.

[0025] In a preferred embodiment, multiple sets of compressed leaf springs are provided between the nut and the slider.

[0026] This application also provides a control system for the aforementioned construction equipment, comprising:

[0027] A rigid chain control unit is used to control the rotation of the drive wheel of the rigid chain;

[0028] An automatic clamp control unit is used to control the automatic clamp to tighten or loosen the bridge pier;

[0029] The motion control unit is used to control the rotation of the drive wheel of the rigid chain, the action and timing of the automatic clamps in the upper connecting seat and the lower connecting seat.

[0030] In a preferred embodiment, the control system further includes:

[0031] A horizontal sensor is mounted on the crossbeam and / or the upper connecting seat and / or the lower connecting seat;

[0032] The data from the horizontal sensor is output to the rigid chain control unit to control the drive wheel of the rigid chain.

[0033] This invention discloses a construction device for erecting crossbeams, which transports crossbeams and mechanical clamps between the upper end of a bridge pier and the ground. It includes multiple lifting subsystems, each comprising: an automatic clamp, consisting of several segments connected in a ring shape, which tightens or loosens the clamp on the bridge pier by the segments converging or separating; an upper connecting seat and a lower connecting seat located below it, with the bridge pier passing through both, and each accommodating one of the automatic clamps; and a rigid chain, consisting of several rigid chains between the upper and lower connecting seats, with one of the head links and the drive wheel of each rigid chain connected to the upper connecting seat and the other to the lower connecting seat. During ascent, the automatic clamp in the upper connecting seat tightens, the rigid chain pulls the lower connecting seat upwards, then the automatic clamp in the lower connecting seat locks, the automatic clamp in the upper connecting seat loosens, the rigid chain pushes the upper connecting seat upwards, then the automatic clamp in the upper connecting seat locks, and the automatic clamp in the lower connecting seat loosens, completing one ascent step. The descent process is the reverse of the ascent process. By placing the crossbeam and mechanical clamps onto the upper connecting seat, the transportation of the crossbeam and mechanical clamps between the upper end of the pier and the ground is completed.

[0034] Unlike existing technologies where rigid chains are only used to lift or lower heavy objects above them, this application presents a new way to use rigid chains by also pulling up and lowering heavy objects below them. Furthermore, the bendable directions of some of the rigid chains are divided into clockwise and counterclockwise; by utilizing the resistance between the rigid chains in different directions, the rigid chains are protected from bending moments, ensuring the safety of the beam transportation process.

[0035] This application also provides a control system based on the construction equipment, comprising: a rigid chain control unit for controlling the rotation angle of the drive wheel of the rigid chain; an automatic clamp control unit for controlling the automatic clamp to tighten or loosen the bridge pier; and an action control unit for controlling the rotation of the drive wheel of the rigid chain, the action and timing of the automatic clamp in the upper connecting seat and the automatic clamp in the lower connecting seat. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the overall structure of the construction equipment for erecting crossbeams provided in Embodiment 1 of the present invention;

[0037] Figure 2 This is a schematic diagram illustrating the direction of the rigid chain in the construction equipment for erecting crossbeams provided in Embodiment 1 of the present invention.

[0038] Figure 3 This is a schematic diagram of the upper connecting seat, mechanical clamp, and automatic clamp provided in Embodiment 1 of the present invention;

[0039] Figure 4This is a schematic diagram of the lower connecting seat and automatic clamp provided in Embodiment 1 of the present invention;

[0040] Figure 5 This is a schematic diagram of the upper connecting seat provided in Embodiment 1 of the present invention;

[0041] Figure 6 and Figure 7 This is a schematic diagram of the structure of the automatic clamp provided in Embodiment 1 of the present invention and a schematic diagram of its exploded view. Detailed Implementation

[0042] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. The principles and features of the present invention are described below with reference to the accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other. The examples given are only for explaining the present invention and are not intended to limit the scope of the present invention.

[0043] Example 1

[0044] In bridge construction, crossbeams are erected on top of piers using mechanical clamps, and cap beams are then constructed on these crossbeams. Crossbeam construction refers to fixing the crossbeams to the top of the piers using mechanical clamps. In many continuous cast-in-place beams of viaducts, Bailey beams are used as the crossbeams. Bailey beams are composed of multiple steel frame units, offering advantages in convenience and speed. The construction equipment provided by this invention for erecting crossbeams transports the crossbeams (whether in the form of a crossbeam or a Bailey beam, it will not affect the structure disclosed in this embodiment; crossbeams in the form of crossbeams or Bailey beams are collectively referred to as crossbeams) and mechanical clamps to the top of the piers. After the cap beam construction is completed, the crossbeams and mechanical clamps are transported back to the ground.

[0045] Reference Figure 1 This embodiment provides an implementation method for construction equipment used to erect crossbeams, which includes multiple lifting subsystems. The number of lifting subsystems is set according to the number of bridge piers 100 or the number of mechanical clamps to be transported as needed. Multiple lifting subsystems work together to support the crossbeams 200.

[0046] Continue to refer to Figure 1 , combined Figure 3 , Figure 4 The lifting subsystem includes:

[0047] Automatic clamp 404, a number of sub-lobes connected to form a ring, the automatic clamp 404 tightens or loosens the bridge pier 100 by the sub-lobes coming together or separating from each other;

[0048] The upper connecting seat 401 is through which the pier 100 passes. The upper connecting seat 401 houses an automatic clamp 404. The upper connecting seat 401 has sufficient space to allow the automatic clamp 404 to tighten or loosen its grip on the pier 100. Furthermore, the upper and lower surfaces of the upper connecting seat 401 and the automatic clamp 404 can contact each other. That is, during the climbing or descending process of the lifting subsystem, when the automatic clamp 404 tightens its grip on the pier 100, the upper connecting seat 401 rests on the automatic clamp 404, and its own weight is borne by the automatic clamp 404; when the automatic clamp 404 loosens its grip on the pier 100, the automatic clamp 404 rests on the upper connecting seat 401, and its own weight is borne by the upper connecting seat 401.

[0049] The lower connecting seat 403 is inserted inside the pier 100. The lower connecting seat 403 houses an automatic clamp 404. The lower connecting seat 403 is located below the upper connecting seat 401; that is, for the upper connecting seat 401 and the lower connecting seat 403 located on the same pier 100, their positions are opposite. The lower connecting seat 403 has sufficient space to allow the automatic clamp 404 to tighten or loosen its grip on the pier 100. Furthermore, the upper and lower surfaces of the lower connecting seat 403 and the automatic clamp 404 can contact each other. That is, during the climbing or descending process of the lifting subsystem, when the automatic clamp 404 tightens its grip on the pier 100, the lower connecting seat 403 rests on the automatic clamp 404, and its own weight is borne by the automatic clamp 404; when the automatic clamp 404 loosens its grip on the pier 100, the automatic clamp 404 rests on the lower connecting seat 403, and its own weight is borne by the lower connecting seat 403.

[0050] Notably, regarding the transmission between the rigid chains 402 of the upper connecting seat 401, the technical approach of this embodiment is to arrange several rigid chains 402 between the upper connecting seat 401 and the lower connecting seat 403. One of the head links and the drive wheel of each rigid chain 402 is connected to the upper connecting seat 401, and the other is connected to the lower connecting seat 403. The bending directions of the rigid chains 402 are either clockwise or counterclockwise. The drive wheels of the rigid chains 402 are installed inside a base and connected to either the upper connecting seat 401 or the lower connecting seat 403 via the base.

[0051] Reference Figure 2 The rigid chain 402 can be bent in the direction of S. The rigid chain 402 can only be bent towards the side of the chain plate 4021 where the shoulder 4021b and shoulder groove 4021a are provided. The direction of bending is the bending direction of the rigid chain 402.

[0052] Unlike existing technologies where rigid chains are only used to lift or lower heavy objects above them, this application presents a new application of rigid chains, which are also used to pull up or lower heavy objects below them. Compared to technologies that use jacks and hydraulic cylinders as transmission devices, the rigid chain is used as a transmission device in the lifting subsystem. Driven by a motor, it is easier to achieve synchronization between different rigid chains, the control process is more precise and simple, the cost is low, and there is no need to install a hydraulic station on the upper or lower connecting seat, meaning the rigid chain drive device occupies a smaller area.

[0053] One or more rigid chains 402 can be installed between the upper connecting seat 401 and the lower connecting seat 403 in a lifting subsystem. When two or more rigid chains 402 are installed, their bendable directions S are different, namely clockwise and counterclockwise. Clockwise or counterclockwise refers to the direction viewed along the length of the rigid chain. When one rigid chain 402 is installed between the upper connecting seat 401 and the lower connecting seat 403 in a lifting subsystem, the bendable directions S of the rigid chain 402 in different lifting subsystems are different, namely clockwise and counterclockwise. The resistance between the rigid chains 402 with different bendable directions S ensures that the rigid chain 402 is not subject to bending moment, thereby ensuring the safety of the beam 200 during transportation.

[0054] During the climb, the automatic clamp 404 in the upper connecting seat 401 tightens, and the drive wheel of the rigid chain 402 rotates, pulling the chain plate of the rigid chain 402 further into the chain box, thereby pulling the lower connecting seat 403 upward. Then, the automatic clamp 404 in the lower connecting seat 403 tightens, and the automatic clamp 404 in the upper connecting seat 401 loosens. The drive wheel of the rigid chain 402 rotates, pushing the chain plate of the rigid chain 402 further out of the chain box, thereby pushing the upper connecting seat 401 upward. Then, the automatic clamp 404 in the upper connecting seat 401 locks, and the automatic clamp 404 in the lower connecting seat 403 loosens, completing one climbing step. During descent, the automatic clamp 404 inside the upper connecting seat 401 tightens, and the drive wheel of the rigid chain 402 rotates, pushing more of the chain plates of the rigid chain 402 out of the chain box, thus lowering the lower connecting seat 403. Subsequently, the automatic clamp 404 inside the lower connecting seat 403 locks, and the automatic clamp 404 inside the upper connecting seat 401 loosens. The drive wheel of the rigid chain 402 rotates, pulling more of the chain plates of the rigid chain 402 into the chain box, thus lowering the upper connecting seat 401. Subsequently, the automatic clamp 404 inside the upper connecting seat 401 tightens, and the automatic clamp 404 inside the lower connecting seat 403 loosens, completing one descent step. The crossbeam 200 and the mechanical clamp 300 are then mounted on the upper connecting seat 401. The repeated climbing and stepping motions complete the transportation of the crossbeam and mechanical clamp from the ground to the top of the pier 100, and the repeated falling and stepping motions complete the transportation of the crossbeam and mechanical clamp from the top of the pier 100 to the ground.

[0055] This embodiment provides a specific implementation method for the structure of the upper connecting seat 401, see reference. Figure 3 and Figure 5 The upper connecting seat 401 includes a first groove 4014 and a second groove 4013 located above the first groove 4014. The opening of the first groove 4014 faces the axis of the pier 100, and the opening of the second groove 4013 faces upward. Therefore, the first groove 4014 can accommodate an automatic clamp 404, and the second groove 4013 can accommodate a mechanical clamp 300. When the lifting subsystem transports the mechanical clamp 300 to the upper end of the pier 100 and fixes the mechanical clamp 300 to the pier 100, the upper connecting seat 401 can move downward.

[0056] Furthermore, a portion of the upper wall of the first groove 4014 forms the bottom of the second groove 4013. The fixing parts on both sides of the mechanical clamp 300 are placed on this part of the bottom, stably supporting the mechanical clamp 300 and preventing it from tilting or deviating during transportation, thus preventing damage to the bridge pier.

[0057] Furthermore, in one embodiment, the groove depth of the second groove 4013 is greater than the height of the mechanical clamp 300. When the mechanical clamp 300 is composed of upper and lower parts, it may tilt during initial placement on the ground or during the process of rising or falling. The groove depth of the second groove 4013 being greater than the height of the mechanical clamp 300 allows the mechanical clamp 300 to have adjustment space when fixed.

[0058] Regarding the structural form of the upper connecting seat 401, this embodiment provides one implementation method, referring to... Figure 3 The upper connecting seat 401 is formed by connecting the first upper seat subunit 4011 and the second upper seat subunit 4012. On the ground, after the automatic clamp 404 clamps the pier 100, the first upper seat subunit 4011 and the second upper seat subunit 4012 are fitted onto its outer side. For the mechanical clamp 300, it can be locked onto the pier 100 before fitting the first upper seat subunit 4011 and the second upper seat subunit 4012, and then loosened after the upper connecting seat 401 is installed. Alternatively, the mechanical clamp 300 can be placed into the upper connecting seat 401 after it is installed. Regardless of whether the upper connecting seat 401 is installed before or after it is fixed to the pier 100, the mechanical clamp 300 does not clamp the pier 100 during the ascent of the climbing subsystem; however, the fastening bolts of the mechanical clamp 300 are loosely locked onto the mechanical clamp 300.

[0059] In a preferred embodiment of this invention, multiple wheel seats (not shown in the figure) are provided on the upper and / or lower surfaces of the upper connecting seat 401. Rollers are mounted on the wheel seats and roll along the surface of the pier 100. By providing these rollers, the rollers roll on the pier 11, relying on the pier 100 to guide the upper connecting seat 401 vertically, further ensuring the horizontality of the crossbeam during vertical transport, while simultaneously ensuring that the rigid chain 402 is not subjected to bending loads.

[0060] Similar to the above-mentioned wheel seats and rollers provided on the upper connecting seat 401, a plurality of wheel seats (not shown in the figure) are provided on the upper and / or lower surface of the lower connecting seat 403, and a rotating wheel is provided on the wheel seat, the rotating wheel rolling along the surface of the pier 100.

[0061] This embodiment provides a specific implementation of an automatic clamp 404 capable of automatically tightening or loosening the bridge pier 100, referring to... Figure 6 and Figure 7 Automatic clamp 404 includes:

[0062] The two sub-lobes 4041 each have a first end and a second end. The first ends of the two sub-lobes 4041 are connected by a pin 4042. When the end faces of the second ends of the two sub-lobes 4041 come into contact, the clamp 4041 automatically closes. The second end of the sub-lobes 4041 is provided with a lug 40411 extending along the end face. The side of the lug 40411 that contacts the lug 40411 of the other sub-lobe 4041 is the first side 40411a, and the other side is the second side 40411b.

[0063] Locking device 4043 is used to make the first surfaces 40411a of the two lugs 40411 contact or separate.

[0064] Locking device 4043 includes:

[0065] A groove 40432 is provided on the second surface 40411b of the lug 40411. The groove 40432 has an arc-shaped groove bottom, and the generatrix of the arc-shaped groove bottom is parallel to the second surface 40411b of the lug 40411.

[0066] Slider 40433 is disposed in slide groove 40432. Slider 40433 has a cylindrical surface with the same radius as the bottom of the arc groove of slide groove 40432.

[0067] Locking device 4043 also includes:

[0068] A pull rod 40434 passes through through holes provided in the lugs 40411, grooves 40432, and sliders 40433 of the two sub-lobes 4041. The pull rod 40434 includes a fixed end and a movable end. The fixed end of the pull rod 40434 is connected to the output shaft of a motor 40431 mounted on one of the sub-lobes 4041. The movable end of the pull rod 40434 is threadedly connected to a nut 40435. Because the movable end of the pull rod 40434 is threaded, it is threaded.

[0069] In the automatic clamp 404, the slider 40433 can slide along the arc surface where the two contact each other within the slide groove 40432. Simultaneously, the bottom of the arc surface restricts the rotation of the slider 40433 within the vertical plane of the slide groove 40432. The slider 40433's ability to slide along the arc surface within the slide groove 40432 prevents the pull rod 4043 from jamming with other structures during the switching between the clamping and releasing states of the automatic clamp 404. The bottom of the arc surface restricts the rotation of the slider 40433 within the vertical plane of the slide groove 40432, ensuring that the slider 40433 is not rotated by the pull rod 40434.

[0070] exist Figure 7 The generatrix of the arc surface of the bottom of the groove 40432 shown is vertical, and is essentially parallel to the axis of the pin 4042. Figure 7 In this embodiment, by setting the vertical length of the slide groove 40432 and adding two walls above and below the lug 40411, the slide groove 40432 is restricted from rotating in the vertical plane by the two walls above and below the lug 40411. In other embodiments, the slide groove 40432 can be directly fixed to the second surface 40411b of the lug 40411 by welding or screw connection.

[0071] When the automatic clamp 404 needs to clamp the pier 100, the motor 40431 drives the tie rod 40434 to rotate, increasing the length of the tie rod 40434 extending beyond the nut 40435. Figure 6 and Figure 7 The length of the tie rod 40434 extending from the lower left side of the nut 40435 increases, causing the first surfaces 40411a of the two lugs 40411 to contact, and the automatic clamp 404 to tighten the bridge pier 100.

[0072] When the automatic clamp 404 needs to loosen the pier 100, the motor 40431 drives the tie rod 40434 to rotate in the other direction, and the length of the tie rod 40434 extending beyond the nut 40435 decreases. Figure 6 and Figure 7The length of the tie rod 40434 extending from the lower left side of the nut 40435 becomes smaller, causing the first surface 40411a of the two lugs 40411 to separate, and the automatic clamp 404 to release the pier 100.

[0073] In this embodiment, it is conceivable that the nut 40435 is along the length of the pull rod 40434 (in... Figure 6 and Figure 7 The direction from the lower left to the upper right cannot rotate, therefore it needs to be fixed in this dimension. This embodiment provides a specific implementation method for fixing the nut 40435: the nut 40435 is fixed to the slider 40433. In a preferred embodiment, a limiting structure 40437 is provided to restrict the rotation of the nut 40435. One side of the limiting structure 40437 is a plane, contacting an outer plane of the nut 40435, and the limiting structure 40437 is fixed to the slider 40433.

[0074] In a preferred embodiment, the size, i.e., the diameter, of the through holes provided on the lugs 40411, the grooves 40432, and the sliders 40433 is such that the pull rod 40434 can deflect within them. When the automatic clamp 404 is in a tightening and loosening state, the included angle between the lugs 40411 of the two sub-lobes 4041 changes. Therefore, the axis of the through holes provided on the lugs 40411, the grooves 40432, and the sliders 40433 will change relative to the axis of the pull rod 40434. The diameter of the through holes needs to be set slightly larger than the diameter of the pull rod 40434 to allow the pull rod 40434 to deflect within the through holes, thus enabling the first surfaces 40411a of the two lugs 40411 to separate. The diameter of the through holes provided on the lugs 40411, the grooves 40432, and the sliders 40433 cannot be too large, as an excessively large diameter would prevent the automatic clamp 404 from being completely locked by the pull rod 40434.

[0075] As mentioned above, the nut 40435 is fixed to the slider 40433. The advantage of this connection is that the nut 40435 will rotate as the slider 40433 rotates in the groove 40432, thus not restricting the deflection of the pull rod 40434.

[0076] In a preferred embodiment, multiple sets of compressed leaf springs 40436 are provided between the nut 40435 and the slider 40433 to lock the nut 40435.

[0077] In the embodiment of the automatic clamp 404 provided in this example, two sub-lobes 4041 protrude from both ends of the pin 4042. The protruding parts are embedded in the upper connecting seat 401 or the lower connecting seat 403 to realize the positioning of the automatic clamp 404 in the upper connecting seat 401 and the positioning of the automatic clamp 404 in the lower connecting seat 403.

[0078] Example 2

[0079] This embodiment provides a control system for the construction equipment used to erect crossbeams in Embodiment 1. The control system includes:

[0080] A rigid chain control unit is used to control the rotation of the drive wheel of the rigid chain, including the rotation angle and speed;

[0081] The automatic clamp control unit is used to control the automatic clamp to tighten or loosen the bridge pier. For the construction equipment in Embodiment 1, the automatic clamp control unit controls the start, stop and forward / reverse rotation of the motor.

[0082] The motion control unit is used to control the rotation of the drive wheel of the rigid chain, the action and timing of the automatic clamps in the upper connecting seat and the lower connecting seat, so as to realize the climbing and lowering of the lifting subsystem.

[0083] In a preferred embodiment, the control system further includes:

[0084] A horizontal sensor is mounted on the crossbeam 200 and / or the upper connecting seat 401 and / or the lower connecting seat 403;

[0085] The data from the horizontal sensor is output to the rigid chain control unit to control the drive wheel of the rigid chain.

[0086] The horizontal status of the crossbeam 200 is fed back by data from a horizontal sensor installed on the crossbeam 200. When the crossbeam 200 is not horizontal, the length of the rigid chain in different lifting subsystems is adjusted to bring the crossbeam 200 horizontal. Ensuring that the crossbeam 200 is horizontal improves the safety of its vertical transportation and enhances the horizontality of its fixation to the upper end of the pier 100, which in turn ensures the horizontality of the cap beam and, consequently, the horizontality of the bridge deck.

[0087] The horizontal status of the upper connector 401 is fed back by the data from the horizontal sensor installed on the upper connector 401. When it is not in a horizontal state, the length of each rigid chain on the upper connector 401 is adjusted so that the upper connector 401 is in a horizontal state.

[0088] The horizontal status of the lower connector 403 is fed back by the data from the horizontal sensor installed on the lower connector 403. When it is not in a horizontal state, the length of each rigid chain on the lower connector 403 is adjusted to make the lower connector 403 in a horizontal state.

[0089] The upper connecting seat 401 and the lower connecting seat 403 are horizontal to prevent damage to the bridge piers from the upper connecting seat 401 and the lower connecting seat 403 and the mechanical clamps during climbing or descending. Furthermore, the horizontality of the upper connecting seat 401 and the lower connecting seat 403 helps to ensure that the crossbeam 200 is horizontal.

[0090] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0091] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0092] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0093] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0094] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. Construction equipment for erecting crossbeams, transporting crossbeams and mechanical clamps between the upper end of the bridge pier and the ground, characterized in that, It includes multiple lifting subsystems, wherein the lifting subsystem includes: The automatic clamp consists of several sub-lobes connected in a ring shape. The automatic clamp tightens or loosens the bridge pier by the sub-lobes coming together or separating from each other. The upper connecting seat is inserted into the pier, and the upper connecting seat contains an automatic clamp. The lower connecting seat is inserted into the pier, and the lower connecting seat contains an automatic clamp. The lower connecting seat is located below the upper connecting seat. A rigid chain is provided between the upper connecting seat and the lower connecting seat. The head link and the drive wheel of the rigid chain are connected to the upper connecting seat and the lower connecting seat, respectively. The bending directions of the rigid chains are clockwise and counterclockwise. The rigid chains are used to lift or lower the upper connecting seat above them and to pull up or lower the lower connecting seat below them. The crossbeam and mechanical clamp are mounted on the upper connecting seat.

2. The construction equipment for erecting crossbeams according to claim 1, characterized in that, The upper connecting seat includes a first groove and a second groove located above the first groove. The opening of the first groove faces the axis of the pier, and the opening of the second groove faces upward.

3. The construction equipment for erecting crossbeams according to claim 2, characterized in that, A portion of the upper wall of the first groove forms the bottom of the second groove.

4. The construction equipment for erecting crossbeams according to claim 2, characterized in that, The depth of the second groove is greater than the height of the mechanical clamp.

5. The construction equipment for erecting crossbeams according to any one of claims 1-4, characterized in that, Multiple wheel seats are provided on the upper and / or lower surface of the upper connecting seat, and a rotating wheel is provided on the wheel seat, the rotating wheel rolling along the surface of the pier; and / or Multiple wheel seats are provided on the upper and / or lower surface of the lower connecting seat, and a rotating wheel is provided on the wheel seat, and the rotating wheel rolls along the surface of the pier.

6. The construction equipment for erecting crossbeams according to any one of claims 1-4, characterized in that, The automatic clamp includes: The two sub-lobes each have a first end and a second end. The first ends of the two sub-lobes are connected by a pin. When the end faces of the second ends of the two sub-lobes come into contact, the automatic clamp closes. The second end of each sub-lobe is provided with a lug extending along its end face. The side of the lug that contacts the other lug is the first side, and the other side is the second side. A locking device for bringing the first surfaces of the two lugs into contact or separating them; The locking device includes: A sliding groove is provided on the second surface of the lug, the sliding groove having an arc-shaped groove bottom, the generatrix of the arc-shaped groove bottom being parallel to the second surface of the lug; A slider is disposed within the groove, the slider having a cylindrical surface with a radius equal to that of the bottom arc surface of the groove; A pull rod passes through through holes provided on the lugs, grooves, and sliders of the two sub-lobes. The pull rod includes a fixed end and a movable end. The fixed end of the pull rod is connected to a motor mounted on one of the sub-lobes, and the movable end of the pull rod is threadedly connected to a nut.

7. The construction equipment for erecting crossbeams according to claim 6, characterized in that, The size of the through holes provided on the lugs, grooves, and sliders is sufficient for the pull rod to deflect within them.

8. The construction equipment for erecting crossbeams according to claim 6, characterized in that, The locking device further includes a limiting structure for restricting the rotation of the nut.

9. The construction equipment for erecting crossbeams according to claim 6, characterized in that, Multiple sets of compressed leaf springs are provided between the nut and the slider.

10. The control system for the construction equipment for erecting crossbeams according to any one of claims 1-9, characterized in that, Include: A rigid chain control unit is used to control the rotation of the drive wheel of the rigid chain; An automatic clamp control unit is used to control the automatic clamp to tighten or loosen the bridge pier; The motion control unit is used to control the rotation of the drive wheel of the rigid chain, the action and timing of the automatic clamps in the upper connecting seat and the lower connecting seat.

11. The control system for the construction equipment for erecting crossbeams according to claim 10, characterized in that, Also includes: A horizontal sensor is mounted on the crossbeam and / or the upper connecting seat and / or the lower connecting seat; The data from the horizontal sensor is output to the rigid chain control unit to control the drive wheel of the rigid chain.

Images