A device for demolishing a bridge pier in water

Abstract

The application discloses a kind of water bridge pier dismantling device, including rack and controller, the rack is equipped with electric slide rail, the electric slide rail is equipped with slide table, the slide table is fixedly installed with machine table, the machine table is installed with drive motor inside, the drive motor is drivingly connected with driving disc, and the driving disc is wound with rope saw;The rack side is equipped with stone breaking mechanism, and the stone breaking mechanism is used to break string bead;The stone breaking mechanism includes: hammering component, the hammering component is used to hammer string bead, and the hammering component is displaced by synchronous movement component push.The application promptly investigates the problem of string bead movement under the working condition of rope saw, once found, the string bead of this movement is hammered and broken, and a few string beads do not affect the cutting effect of rope saw as a whole, so as to prevent the string bead from being stuck on pier, prevent rope breakage caused by rope clamping, and prolong the service life of rope saw.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of bridge engineering, and particularly relates to a device for demolishing a pier and abutment of a bridge in water. BACKGROUND

[0002] In the demolition project of bridge engineering, the demolition of a bridge, a pier and an abutment in water is the most complex, on the one hand, the construction needs to be carried out underwater, and the construction environment is relatively inconvenient; on the other hand, the demolition of a bridge, a pier and an abutment made of reinforced concrete is difficult; the existing concentrated demolition methods include blasting, a breaking hammer and underwater cutting; among them, underwater cutting is favored by the bridge demolition project because of its fast construction speed and strong environmental adaptability, but the rope saw machine used in underwater cutting is prone to rope breaking accidents, affecting the demolition efficiency.

[0003] The existing Chinese patent with the application number CN201921665812.2 discloses an underwater pile cutting device, which comprises a cutting mechanism, an underwater cutting guide mechanism and a hoisting device; the cutting mechanism comprises a working platform on water, a rope saw machine, a diamond rope saw connected with the rope saw machine and a guide roller, the working platform is arranged on a river bank, the rope saw machine is fixed on the working platform, the rope saw machine controls the rotation of the diamond rope saw, and the guide roller is fixed on the working platform and used for guiding the diamond rope saw extending out of the rope saw machine; the underwater cutting guide mechanism is used for turning the diamond rope saw extending out of the rope saw machine from a horizontal direction on water to a horizontal direction underwater; the hoisting device comprises a steel wire rope, a hook and a hoisting power equipment, the steel wire rope is connected with the hook and a boom of the hoisting power equipment through the hook, and is used for hoisting the cut pile out of water.

[0004] The underwater pile cutting device has the advantages of high working efficiency, small vibration and noise, flat cutting surface, multi-angle cutting for separation operation, remote control of the rope saw machine, reliable operation and installation, etc.; however, if a certain string bead moves in the use of the rope saw, the moving string bead and the intact string bead are stacked together when passing through the cutting object, causing the rope to be stuck, the rope is broken in advance from the stuck place due to the rotation of the rope saw, and the service life of the rope saw is affected. SUMMARY

[0005] The present application aims to provide a device for demolishing a pier and abutment of a bridge in water, which solves the problem that if a certain string bead moves in the use of the rope saw, the moving string bead and the intact string bead are stacked together when passing through the cutting object, causing the rope to be stuck, the rope is broken in advance from the stuck place due to the rotation of the rope saw, and the service life of the rope saw is affected.

[0006] To achieve the above-mentioned purpose, the present application adopts the following technical solutions:

[0007] A device for dismantling bridge piers in water includes a frame and a controller. An electric slide rail is installed on the frame, a slide table is installed on the electric slide rail, a machine platform is fixedly installed on the slide table, a drive motor is installed inside the machine platform, the drive motor is connected to a drive disc, and a wire saw is wound on the drive disc.

[0008] A stone-breaking mechanism is installed on one side of the platform, which is used to break the beads.

[0009] The stone-breaking mechanism includes a hammering component for hammering beads, which is displaced by a synchronous moving component.

[0010] Preferably, the underwater bridge pier demolition device includes two tracks, which are set on the machine platform and located on both sides of the wire saw. A linear motor is installed on each track, and a hammering assembly is installed on the linear motor. The linear motor is used to drive the hammering assembly to move synchronously with the beads on the wire saw.

[0011] Preferably, the hammering assembly includes a support platform and an impact hammer corresponding to the support platform. The support platform is fixedly mounted on one of the linear motors, and the impact hammer is fixed at the end of a first hydraulic cylinder. The base of the first hydraulic cylinder is fixedly mounted on a load-bearing column, and the load-bearing column is fixedly mounted on another linear motor. The first hydraulic cylinder is placed vertically.

[0012] Preferably, the support platform is further provided with a secondary platform, and a second hydraulic cylinder is installed between the bottom of the secondary platform and the support platform, and the wire saw passes through the space between the impact hammer and the secondary platform.

[0013] Preferably, the surface of the sub-platform is provided with multiple raised ridges at intervals.

[0014] Preferably, the stone-breaking mechanism further includes a detection component for detecting beads on the wire saw.

[0015] Preferably, the detection assembly includes a detection seat, on which a detection needle is mounted, the middle portion of the detection needle is hinged to the detection seat, the front portion of the detection needle extends out of the detection seat, and a return torsion spring is connected between the middle portion of the detection needle and the detection seat.

[0016] The detection seat is equipped with a pressure sensor, and the detection needle is fixed with a flexible contact.

[0017] Preferably, a lifting cylinder is installed between the testing seat and the machine base.

[0018] Preferably, there are two detection components, and the two detection components are symmetrically distributed on the machine platform.

[0019] Preferably, the driving motor, the first hydraulic cylinder, the second hydraulic cylinder, the linear motor, the pressure sensor and the lifting cylinder are electrically connected with the controller.

[0020] The technical effect and advantages of the present application: the water bridge pier dismantling device has the following advantages compared with the prior art.

[0021] 1、The present application can timely check the problem of string beads movement in the working state of the rope saw, and once found, the hammering and crushing of the moving string beads is carried out, and the lack of a few string beads does not affect the cutting effect of the whole rope saw, so as to prevent the moving string beads from being stuck on the pier, prevent the rope from being broken due to the rope being stuck, and prolong the service life of the rope saw.

[0022] 2、The present application places the vice table and the impact hammer on the upper and lower positions of the moving string beads, so as to facilitate the alignment of the two with the string beads, realize the purpose of accurate hammering and crushing, and then utilize the cooperation of the first hydraulic cylinder and the second hydraulic cylinder to shorten the moving stroke of the vice table and the impact hammer, shorten the time of hammering and crushing the string beads, and improve the overall efficiency of the device.

[0023] 3、The present application detects the swing amplitude of the needle to affect the pressure applied by the flexible contact to the pressure sensor, and under the comprehensive comparison of the pressure value and the contact time, once an abnormality occurs, the controller immediately controls the water bridge pier dismantling device to work, because the previous one is a moving string bead, so as to ensure that the previous string bead is located within the range of the hammering assembly, and directly hammer and crush it by using the hammering assembly, so as to avoid the subsequent problems of rope sticking and breaking as much as possible, prolong the service life of the rope saw, and improve the efficiency of pier dismantling. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a three-dimensional structure schematic diagram of the present application.

[0025] Figure 2 It is another three-dimensional structure schematic diagram of the present application.

[0026] Figure 3 It is a top view of the present application.

[0027] Figure 4 It is Figure 3 It is a local enlarged structure schematic diagram of A in the present application.

[0028] Figure 5 It is a front view of the present application.

[0029] Figure 6 It is a position schematic diagram of the lifting cylinder in the present application. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be clearly and completely described below. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. The specific embodiments described here are only used to explain the present application, and are not used to limit the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work belong to the scope of protection of the present application.

[0031] The present application provides a kind of underwater bridge pier dismantling device as shown in Figures 1-6 ,

[0032] Including rack 1 and controller, the electric slide rail 2 is installed on the rack 1, the slide table 3 is installed on the electric slide rail 2, the machine table 4 is fixedly installed on the slide table 3, the drive motor 9 is installed in the machine table 4, the drive motor 9 is drivingly connected with driving disc 5, and the rope saw 6 is wound on the driving disc 5;

[0033] The side of the rack 1 is provided with a stone breaking mechanism 7, and the stone breaking mechanism 7 is used for breaking the string beads;

[0034] The stone breaking mechanism 7 comprises a hammering assembly 71 for hammering the string beads, and the hammering assembly 71 is pushed to displace by a synchronous moving assembly 72;

[0035] The stone breaking mechanism 7 further comprises a detection assembly 8 for detecting the string beads on the rope saw 6. In use, the rope saw 6 on the driving disc 5 is sleeved on the pier to be dismantled, and then the control drive motor 9 is started, the drive motor 9 drives the driving disc 5 to rotate, and the driving disc 5 is rubbed with the rope saw 6 to drive the rope saw 6 to rotate, so as to cut the sleeved pier, and the cutting work is partially located in water to play a good cooling effect, and the service life of the rope saw 6 is improved. According to actual needs, the controller controls the machine table 4 and the slide table 3 to slowly and linearly move on the electric slide rail 2 until the whole cutting of the pier is realized;

[0036] During the continuous cutting of the rope saw 6, the detection assembly 8 detects the string beads on the rope saw 6, and once individual string beads occur, the controller timely receives the information of the detection assembly 8, controls the synchronous moving assembly 72 to be consistent with the displacement speed of the string beads on the rope saw 6, at this time, the hammering assembly 71 and the string beads are in a relatively static state, so that the hammering assembly 71 directly hammers and breaks the string beads, so that the string beads disappear, and the disappearance of individual string beads does not affect the normal cutting action. The present application timely investigates the problem of string bead movement in the working state of the rope saw 6, and once the problem is found, the hammering and breaking of the moving string beads are carried out. A small number of string beads do not affect the cutting effect of the whole rope saw 6, so that the moving string beads are prevented from being stuck on the pier, the rope breakage caused by the stuck rope is prevented, and the service life of the rope saw 6 is prolonged.

[0037] The water bridge pier dismantling device comprises two rails 721 arranged on the machine table 4 and located on both sides of the rope saw 6, a linear motor 722 is arranged on each rail 721, and a hammering assembly 71 is arranged on the linear motor 722, and the linear motor 722 is used for driving the hammering assembly 71 to move synchronously with the beads on the rope saw 6.

[0038] The hammering assembly 71 comprises a bearing platform 711 and an impact hammer 712 corresponding to the bearing platform 711, the bearing platform 711 is fixedly arranged on one of the linear motors 722, the impact hammer 712 is fixedly arranged at the end of a first hydraulic cylinder 713, the base of the first hydraulic cylinder 713 is fixedly arranged on a bearing column 714, the bearing column 714 is fixedly arranged on the other linear motor 722, and the first hydraulic cylinder 713 is vertically arranged.

[0039] A second hydraulic cylinder 716 is arranged between the bottom of the bearing platform 711 and the bearing platform 711, and the rope saw 6 passes through the space between the impact hammer 712 and the auxiliary platform 715. The specific process is as follows: once the detection assembly 8 detects that the beads move, the controller controls the linear motor 722 to drive the hammering assembly 71 to move on the rail 721 at the same speed as the moving speed of the beads on the rope saw 6, and the two move synchronously, at this time, the hammering assembly 71 and the moving beads are in a relatively static state, the controller controls the first hydraulic cylinder 713 and the second hydraulic cylinder 716 to instantaneously extend, thereby respectively driving the impact hammer 712 downward and the auxiliary platform 715 upward, so that the impact hammer 712 and the auxiliary platform 715 move towards each other and impact the moving beads, thereby crushing the moving beads and making them separate from the rope saw 6, so that the moving beads cannot be stuck on the pier to cause the rope saw 6 to break, thereby prolonging the service life of the rope saw 6 and improving the dismantling efficiency of the pier.

[0040] The auxiliary platform 715 and the impact hammer 712 are arranged above and below the moving beads, which facilitates the alignment of the two with the beads and achieves the purpose of accurate hammering and crushing, and the first hydraulic cylinder 713 and the second hydraulic cylinder 716 are used for cooperation, which shortens the moving stroke of the auxiliary platform 715 and the impact hammer 712, shortens the time for hammering and crushing the beads, and improves the overall efficiency of the device.

[0041] A plurality of convex ridges 717 are arranged on the surface of the auxiliary platform 715.

[0042] The surface of the auxiliary platform 715 is uneven due to the arrangement of the convex ridges 717, and the contact area is reduced when the beads are impacted by the auxiliary platform 715 and the impact hammer 712, thereby achieving the purpose of accelerating the hammering and crushing of the beads.

[0043] The detection assembly 8 comprises a detection seat 81, a detection needle 82 is installed on the detection seat 81, the middle part of the detection needle 82 is hinged on the detection seat 81, the front part of the detection needle 82 extends out of the detection seat 81, and a reset torsion spring 83 is connected between the middle part of the detection needle 82 and the detection seat 81;

[0044] A pressure sensor 84 is arranged on the detection seat 81, and a flexible contact 85 is fixed on the detection needle 82. The detection of the string beads is as follows: when the string beads moving under the driving disc 5 move to the pier direction, each string bead is in contact with the head part of the detection needle 82, if the string bead is fixed, the string bead will push the contacted detection needle 82 to swing and deflect along the hinge point, until the string bead passes the detection needle 82, the detection needle 82 is quickly reset under the action of the reset torsion spring 83, and then contacts the next string bead, and each time the detection needle 82 swings and deflects, the flexible contact 85 will contact the pressure sensor 84, and the contact time is relatively short, the contact time is recorded by a counter electrically connected with the pressure sensor 84, the pressure sensor 84 sends the pressure value and the contact time to the controller, and if the detection range is met, it is indicated that the string bead is normal;

[0045] Once the string bead with displacement contacts the detection needle 82, the detection needle 82 will passively push the string bead with displacement to the position of the intact string bead and be overlapped with the intact string bead, and the length of the two overlapped string beads is much larger than the length of one string bead, so that the contact time of the detection needle 82 with the two string beads is longer, the time for the two overlapped string beads to pass the detection needle 82 is longer than the time for the single string bead to pass the detection needle 82, and the swing amplitude of the detection needle 82 pushed by the string bead increases, so that the pressure applied by the flexible contact 85 to the pressure sensor 84 is larger, at this time, the pressure value and the contact time are both abnormal, and the controller immediately controls the water bridge pier dismantling device to work, because the previous one is the string bead with displacement, so that the previous string bead is located in the range of the hammering assembly 71, and the hammering assembly 71 is used to directly hammer and break the string bead, so that the subsequent problems of the rope are avoided, the service life of the rope saw 6 is prolonged, and the efficiency of the pier dismantling is improved.

[0046] Preferably, a lifting cylinder 86 is arranged between the detection seat 81 and the machine table 4. Through the arrangement of the lifting cylinder 86, the height of the detection seat 81 can be adjusted under the extension and retraction of the lifting cylinder 86, so that the detection needle 82 on the detection seat 81 can always contact the displaced string bead, and the detection of the string bead is persistent and effective.

[0047] Preferably, the detection assembly 8 is provided with two, and the two detection assemblies 8 are symmetrically distributed on the machine table 4 (not shown in the figure). Multiple detection needles 82 can improve the efficiency of detection, and also can be prepared to prevent the detection assembly 8 from being unable to work due to the damage of a single detection needle 82, and finally affect the accuracy of the detection result.

[0048] Preferably, the driving motor 9, the first hydraulic cylinder 713, the second hydraulic cylinder 716, the linear motor 722, the pressure sensor 84 and the lifting cylinder 86 are electrically connected with the controller.

[0049] In the description of the present application, it should be noted that the terms "upper", "lower", "left", "right" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0050] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for the limitation of the present application, although the foregoing embodiments of the present application are described in detail, for those skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement, within the spirit and principles of the present application, any modification, equivalent replacement, improvement, etc., should be included in the protection scope of the present application.

Claims

1. A device for demolishing a bridge pier in water, comprising a platform (1) and a controller, characterized in that: A rack (1) is provided with an electric slide rail (2), a slide table (3) is installed on the electric slide rail (2), a machine table (4) is fixedly installed on the slide table (3), a driving motor (9) is installed in the machine table (4), the driving motor (9) is in transmission connection with a driving disc (5), and a rope saw (6) is wound around the driving disc (5); A stone breaking mechanism (7) is installed on one side of the rack (1), and the stone breaking mechanism (7) is used for breaking string beads; The stone breaking mechanism (7) comprises a hammering assembly (71) for hammering string beads, and the hammering assembly (71) is pushed to displace by a synchronous moving assembly (72); The synchronous moving assembly comprises two tracks (721), the tracks (721) are arranged on the machine table (4) and located on both sides of the rope saw (6), a linear motor (722) is installed on each track (721), the hammering assembly (71) is installed on the linear motor (722), and the linear motor (722) is used for driving the hammering assembly (71) to displace synchronously with the string beads on the rope saw (6); The hammering assembly (71) comprises a bearing table (711) and an impact hammer (712) corresponding to the bearing table (711), the bearing table (711) is fixedly installed on one linear motor (722), the impact hammer (712) is fixed at the end of a first hydraulic cylinder (713), the base of the first hydraulic cylinder (713) is fixedly installed on a bearing column (714), the bearing column (714) is fixedly installed on another linear motor (722), and the first hydraulic cylinder (713) is vertically placed; The stone breaking mechanism (7) further comprises a detection assembly (8) for detecting the string beads on the rope saw (6); The detection assembly (8) comprises a detection seat (81), a detection needle (82) is installed on the detection seat (81), the middle part of the detection needle (82) is hinged to the detection seat (81), the front part of the detection needle (82) extends out of the detection seat (81), and a reset torsional spring (83) is connected between the middle part of the detection needle (82) and the detection seat (81); A pressure sensor (84) is arranged on the detection seat (81), and a flexible contact (85) is fixed to the detection needle (82); A vice table (715) is further arranged on the bearing table (711), a second hydraulic cylinder (716) is installed between the bottom of the vice table (715) and the bearing table (711), and the rope saw (6) passes through the space between the impact hammer (712) and the vice table (715); The driving motor (9), the first hydraulic cylinder (713), the second hydraulic cylinder (716), the linear motor (722) and the pressure sensor (84) are electrically connected with a controller.

2. The underwater bridge pier removal device of claim 1, wherein: A lifting cylinder (86) is installed between the detection seat (81) and the machine table (4).

3. The underwater bridge pier removal device of claim 2, wherein: The detection assembly (8) is provided in two, and the two detection assemblies (8) are symmetrically distributed on the machine table (4).

4. The underwater bridge pier removal device of claim 1, wherein: A plurality of convex ridges (717) are arranged on the surface of the vice table (715) at intervals.

5. The underwater bridge pier removal device of claim 2, wherein: The lifting cylinder (86) is electrically connected with the controller.

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