Crushing device for bridge demolition

Abstract

The application discloses a breaking device for bridge demolition, which comprises a breaking hammer and multiple groups of auxiliary breaking pieces. The breaking hammer is internally provided with a hydraulic cylinder, the piston rod of the hydraulic cylinder is extended from the bottom of the breaking hammer and coaxially connected with a drill rod, multiple fixed pieces vertically extending outward from the side wall of the drill rod are arranged on the drill rod, multiple connecting rods vertically extending downward from the bottom wall of the breaking hammer are arranged on the bottom of the breaking hammer, the bottom of each connecting rod is fixed on a fixed ring, and the fixed ring is coaxially arranged with the drill rod. Each group of auxiliary breaking pieces comprises a first branch arm and a second branch arm which are hingedly connected with each other, the other end of the first branch arm is hingedly connected with any fixed piece, the other end of the second branch arm is provided with an auxiliary drill head extending to the bottom of the drill rod, and the second branch arm is rotatably sleeved on the outer periphery of the fixed ring. The breaking device for bridge demolition can synchronously impact the bridge from multiple points, and the construction efficiency of bridge demolition is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of bridge demolition. More particularly, the present application relates to a breaking device for bridge demolition. BACKGROUND

[0002] With the vigorous development of China's social economy and the continuous increase of traffic volume, the original bridge has been unable to adapt to the new requirements of urban planning and overall environment due to design load. After years of operation, the bearing capacity of the bridge decreases, and various, complex and serious diseases appear. Even if the bridge is reinforced, it is difficult to meet the requirements, and the cost of reconstruction is too high. Therefore, the bridge needs to be demolished and reconstructed. The traditional static blasting method uses expanding agent and breaking agent, which has a long cycle, low construction output, high requirement for site free surface, great influence of rain and temperature, and many other factors such as spraying and strong alkaline hazards. Therefore, the method is gradually eliminated in the construction process where blasting operation cannot be used. The mechanical demolition method is to crack and decompose rocks by using machinery, which is the most widely used and applied building demolition method. For bridge demolition, the auxiliary facilities and the main bridge are generally demolished first, and then the piers are demolished. In the patent with the application number 202010393408.5, a bridge demolition breaking hammer and a bridge demolition equipment are disclosed. However, the breaking hammer is only equipped with one drill rod. After breaking one point, the mechanical arm needs to be manually operated to place the breaking hammer at another point for breaking again, which limits the breaking area of one breaking action, reduces the working efficiency, and causes the workers to be easily tired. SUMMARY

[0003] An object of the present application is to provide a breaking device for bridge demolition, which can realize multi-point synchronous breaking and has high working efficiency.

[0004] In order to achieve these objects and other advantages according to the present application, according to one aspect of the present application, a breaking device for bridge demolition is provided, which comprises:

[0005] A breaking hammer is internally provided with a hydraulic cylinder, the piston rod of the hydraulic cylinder is movably extended from the bottom of the breaking hammer, and a drill rod is coaxially connected to the bottom of the breaking hammer. A plurality of fixing members vertically extending outward from the side wall of the drill rod are arranged on the drill rod. A plurality of connecting rods vertically extending downward from the bottom wall of the breaking hammer are arranged on the bottom of the breaking hammer. The bottoms of the plurality of connecting rods are fixed to a fixed ring, and the fixed ring is coaxially arranged with the drill rod.

[0006] A plurality of groups of auxiliary breaking members are arranged on the fixed ring. Each group of auxiliary breaking members comprises a first branch arm and a second branch arm which are hingedly connected to each other. The other end of the first branch arm is hingedly connected to any fixing member. The other end of the second branch arm is provided with an auxiliary drill head extending to the bottom of the drill rod, and the second branch arm is rotatably sleeved on the outer periphery of the fixed ring.

[0007] Preferably, the second branch arm of each group of auxiliary breaking pieces is provided with an elongated first through hole, opposite side walls of the first through hole are respectively provided with a first sliding rail and a second sliding rail, the second branch arm is further provided with an elongated second through hole, the second through hole is communicated with the first through hole through the first sliding rail, the length direction of the first through hole, the second through hole, the first sliding rail and the second sliding rail is consistent with the extension direction of the second branch arm, and a sleeve is slidingly installed in the first through hole;

[0008] The sleeve is a cylinder structure, the outer side wall of the sleeve is symmetrically provided with a first sliding block and a second sliding block, the first sliding block and the sleeve are correspondingly provided with a threaded hole penetrating through each other, and the first sliding block and the second sliding block are respectively accommodated into the first sliding rail and the second sliding rail and slide together with the sleeve in the first through hole.

[0009] The fixed ring is provided with a plurality of rotating rings, each rotating ring is matched and penetrated into the sleeve on the second branch arm of each group of auxiliary breaking pieces, and is penetrated into a bolt at the second through hole, the bolt is matched and screwed into the threaded hole and abuts against the outer wall of the rotating ring.

[0010] Preferably, each first branch arm is detachably hinged to the corresponding fixing piece, one end of the first through hole on each second branch arm is provided with a side opening, the side wall of the sleeve is provided with a notch, so that the sleeve has a half-enclosing structure, the side opening and the notch are connected to each other, the fixed ring passes through the side opening and the notch, and the rotating ring is accommodated into the sleeve.

[0011] Preferably, the cross section of the fixed ring is circular, the diameter of the fixed ring is smaller than the inner diameter of the rotating ring, the outer diameter of the rotating ring is smaller than the inner diameter of the sleeve, and the width of the side opening and the notch is greater than the outer diameter of the rotating ring.

[0012] Preferably, a plurality of fixing pieces are symmetrically arranged on the outer side wall of the drill rod, and a plurality of groups of auxiliary breaking pieces are symmetrically arranged around the outer periphery of the drill rod.

[0013] Preferably, each connecting rod is arranged between any two groups of auxiliary breaking pieces.

[0014] The bridge breaking device has the following beneficial effects: the drill rod and the plurality of groups of auxiliary breaking pieces are arranged on the top and around the bridge, so that the plurality of point positions can be synchronously broken, and the working efficiency is effectively improved; the second branch arm of the auxiliary breaking piece is movably sleeved around the outer periphery of the fixed ring, so that the included angle between the second branch arm and the drill rod can be adjusted, the breaking area of the plurality of point positions is adjusted, and the applicability of the device is improved; and the side opening is arranged on the second branch arm and used for allowing the fixed ring to pass through, so that each group of auxiliary breaking pieces can be easily disassembled, and the flexibility of the device is improved.

[0015] Other advantages, objects, and features of the application will be apparent to those skilled in the art from the following specification. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 A planar schematic view of one technical solution of the present application;

[0017] Figure 2 A schematic view of the structure at the second arm A in one technical solution of the present application;

[0018] Figure 3 A sectional view of the second arm in one technical solution of the present application;

[0019] Figure 4 A schematic view of the structure of the sleeve in one technical solution of the present application;

[0020] Figure 5 A schematic view of the structure of the fixing ring in one technical solution of the present application;

[0021] Figure 6 A schematic view of the structure at the second arm A in another technical solution of the present application;

[0022] Figure 7 A schematic view of the structure of the sleeve in another technical solution of the present application;

[0023] Figure 8 A schematic view of the structure of the sleeve in another technical solution of the present application;

[0024] Figure 9 A schematic view of the structure of the sleeve in another technical solution of the present application; DETAILED DESCRIPTION

[0025] The present application will be further described in conjunction with the drawings and specific embodiments, so that those skilled in the art can implement the present application according to the description in the specification.

[0026] It should be understood that the terms such as "have", "contain", and "include" used herein do not exclude the presence or addition of one or more other elements or combinations thereof.

[0027] It should be noted that the experimental methods described in the following embodiments are conventional methods unless otherwise specified, and the reagents and materials are commercially available unless otherwise specified. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "set" should be understood in a broad sense, for example, they can be fixedly connected or set, or detachably connected or set, or integrally connected or set. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances. The orientations or positional relationships indicated by the terms "transverse", "longitudinal", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description. They do 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 limiting the present invention.

[0028] like Figures 1-9 As shown, the present invention provides a crushing device for bridge demolition, which includes:

[0029] The breaker hammer 100 is provided with a hydraulic cylinder inside. The piston rod of the hydraulic cylinder movably extends from the bottom of the breaker hammer 100 and is coaxially connected to a drill rod 101. The drill rod 101 is provided with multiple fixing members 102 extending outward perpendicularly to its side walls. The bottom of the breaker hammer 100 is installed with multiple connecting rods 103 extending downward perpendicularly to its bottom wall. The bottoms of the multiple connecting rods 103 are all fixed to a fixing ring 104, and the fixing ring 104 is coaxially arranged with the drill rod 101.

[0030] Multiple groups of auxiliary crushing parts, each group of auxiliary crushing parts includes a first arm 200 and a second arm 201 hinged to each other, the other end of the first arm 200 is hinged to any fixed part 102, the other end of the second arm 201 is provided with an auxiliary drill bit 105 extending toward the bottom of the drill rod 101, and the second arm 201 is rotatably sleeved on the outer periphery of the fixed ring 104.

[0031] In the present technical solution, the crushing device for bridge demolition includes a breaker 100 and multiple groups of auxiliary crushing parts. The breaker 100 serves as the main crushing mechanism and is a cylindrical structure. A fixed ring 104 is provided directly below it. Multiple connecting rods 103 are connected between the breaker 100 and the fixed ring 104. The longitudinal section of the fixed ring 104 is a circular structure. A hydraulic cylinder is provided inside the breaker 100. The piston rod on the hydraulic cylinder movably passes through the breaker 100 and extends downward. The end of the piston rod is coaxially fixed with a drill rod 101 extending vertically downward. The lower end of the drill rod 101 passes through the center of the fixed ring 104. The upper end side wall of the drill rod 101 is connected to multiple fixing parts 102 extending vertically outward. Each set of auxiliary crushing parts includes a first arm 200 and a second arm 201 that are hinged to each other. The top of the first arm 200 is hinged to the fixing member 102, the middle of the second arm 201 is rotatably sleeved on the fixing ring 104, and the bottom of the second arm 201 is equipped with an auxiliary drill bit 105 near the bottom of the drill rod 101. During use, this breaker 100 can be mounted on the end of a robotic arm, which drives it to move as a whole to the area to be crushed, so that the bridge is within the area surrounded by the drill bit of the drill rod 101 and multiple auxiliary drill bits. The hydraulic cylinder is activated to drive the drill rod 101 up and down, thereby driving the first arm 200 and the second arm 201 to swing. When the drill bit of the drill rod 101 strikes vertically downward, the multiple auxiliary drill bits strike in the direction close to the drill bit of the drill rod 101, thus implementing surrounded multi-point crushing of the bridge. Multiple groups of auxiliary crushing parts are connected to the drill rod 101, and multi-point work can be achieved through a driving mechanism, which reduces the complexity of the device and facilitates operation; multiple groups of auxiliary crushing parts are surrounded by the drill rod 101, presenting multi-point impact, and the impact points are not located on the same plane, which improves the efficiency of crushing construction, and is more suitable for bridge crushing and has strong flexibility.

[0032] In another technical solution, a first elongated through hole 202 is provided on the second support arm 201 of each group of auxiliary crushing members, and a first slide rail 203 and a second slide rail 204 are respectively provided on the opposite side walls of the first through hole 202. A second elongated through hole 205 is also provided on the second support arm 201, and the second through hole 205 is connected to the first through hole 202 through the first slide rail 203. The length directions of the first through hole 202, the second through hole 205, the first slide rail 203, and the second slide rail 204 are all consistent with the extension direction of the second support arm 201. A set 206 is slidably installed in the first through hole 202;

[0033] The sleeve 206 is a cylindrical structure, and a first slider 210 and a second slider 211 are symmetrically provided on its outer wall. The first slider 210 and the sleeve 206 are provided with corresponding threaded holes 212 that penetrate each other. The first slider 210 and the second slider 211 are respectively accommodated in the first slide rail 203 and the second slide rail 204, and slide together with the sleeve 206 in the first through hole 202;

[0034] The bearing sleeve on the fixed ring 104 is provided with multiple rotating rings 110, each rotating ring 110 is matched and inserted into the sleeve 206 on the second support arm 201 of each group of auxiliary crushing parts, and a bolt 111 is inserted through the second through hole 205, and the bolt 111 is matched and screwed into the threaded hole 212 to abut against the outer wall of the rotating ring 110.

[0035] In this technical solution, a first through hole 202 is provided on the second arm 201, which is in the shape of a long strip, and its length direction is consistent with the length extension direction of the second arm 201. A second slide rail 204 and a first slide rail 203 are respectively provided on the two opposite side walls of the first through hole 202 close to or away from the fixing ring 104. The first slide rail 203 and the second slide rail 204 are both rectangular groove structures, and a second through hole 205 is also provided on the side of the second arm 201 away from the fixing ring 104. The second through hole 205 is connected to the first slide rail 203, and the width of the second through hole 205 is smaller than the width of the first slide rail 203. A kit 206 is installed and accommodated in the first through hole 202. The kit 206 is a cylindrical structure, and its axial direction is perpendicular to the length extension direction of the second arm 201. The first slider 210 and the second slider 211 that can be matched and accommodated in the first slide rail 203 and the second slide rail 204 are respectively installed on both sides of the kit 206. The first slider 210 is provided with a threaded hole 212 that is perpendicular to the side wall of the kit 206 and passes through the kit 206. A bolt 111 is passed through the second through hole 205 and screwed into the threaded hole 212. A plurality of rotating rings 110 are connected to the bearing sleeve on the fixed ring 104. The rotating ring 110 can rotate on the fixed ring 104. The rotating ring 110 is passed through the kit 206. During use, the bolt 111 is loosened to adjust the angles between the first arm 200 and the drill rod 101, and between the second arm 201 and the first arm 200. While adjusting, the sleeve slides in the first through hole 202. After the adjustment is completed, the bolt 111 is tightened to fix the position of the sleeve, and the hydraulic cylinder is turned on to impact and crush the point. The first through hole 202 is provided for the movement of the fixing ring 104 to facilitate adjustment of the swing angle of the second arm 201. The sleeve and the bolt 111 are provided to facilitate fixing the connection position of the second arm 201 and the fixing ring 104, thereby adjusting the position of the auxiliary point to adapt to different construction environments. The rotating ring 110 is provided to ensure the smooth swing of the second arm 201, improve the structural flexibility, and ensure the normal operation of the device.

[0036] In another technical solution, each first branch arm 200 is detachably hinged with the corresponding fixing member 102, one end of the first through hole 202 on each second branch arm 201 is provided with a side opening 300, the side wall of the sleeve 206 is provided with a notch 301, the sleeve 206 is in a semi-enclosing structure, the side opening 300 and the notch 301 are opposite to each other, the fixing ring 104 passes through, and the rotating ring 110 is accommodated into the sleeve 206. In this technical solution, the first branch arm 200 and the fixing member 102 are detachably hinged by bolts or the like, the second branch arm 201 is provided with a side opening 300 close to the fixing ring 104, which is in communication with the first through hole 202, the sleeve 206 sliding in the first through hole 202 is provided with a notch 301, the notch 301 and the side opening 300 correspond to each other, so that the rotating ring 110 on the fixing ring 104 can pass through the side opening 300 and the notch 301 to enter the sleeve 206. In use, the number of breaking points can be selected according to actual needs, that is, the number of auxiliary breaking members, then the first branch arm 200 of each group of auxiliary breaking members is hinged with the fixing member 102, the bolt 111 on the second branch arm 201 is loosened, the sleeve 206 is lowered, the notch 301 of the sleeve 206 is butted with the side opening 300, the second branch arm 201 is swung, the rotating ring 110 on the fixing ring 104 passes through the side opening 300 and the notch 301 to enter the sleeve 206, the sleeve 206 and the rotating ring 110 reach the designated area by swinging the second branch arm 201, the bolt 111 is tightened to fix the sleeve 206 and the rotating ring 110, and the coverage area of the multiple points is adjusted. The side opening 300 and the notch 301 are arranged to facilitate the connection between the second branch arm 201 and the fixing ring 104, facilitate the replacement and maintenance of the auxiliary breaking member, and improve the structural flexibility.

[0037] In another technical solution, the cross section of the fixing ring 104 is circular, the diameter is smaller than the inner diameter of the rotating ring 110, the outer diameter of the rotating ring 110 is smaller than the inner diameter of the sleeve 206, and the width of the side opening 300 and the notch 301 is greater than the outer diameter of the rotating ring 110. In this technical solution, the side opening 300 and the notch 301 correspond to each other, which facilitates the fixing ring 104 to pass through the second branch arm 201 to enter the first through hole 202, and the second branch arm 201 is sleeved on the rotating ring 110 on the fixing ring 104, which facilitates the installation and disassembly of the second branch arm 201, and is flexible and convenient to operate.

[0038] In another technical solution, a plurality of fixing members 102 are symmetrically arranged on the outer side wall of the drill rod 101, and a plurality of groups of auxiliary breaking members are symmetrically arranged around the outer periphery of the drill rod 101. In this technical solution, the plurality of fixing members 102 are evenly distributed on the outer periphery of the drill rod 101, and the plurality of groups of auxiliary breaking members are symmetrically arranged, which improves the structural stability.

[0039] In another technical solution, each connecting rod 103 is disposed between any two groups of auxiliary crushing members. In this technical solution, multiple connecting rods 103 and auxiliary crushing members are alternately arranged to improve structural stability.

[0040] Although the embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the description and implementation methods. They can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and illustrations shown and described herein.

Claims

1. Crushing device for bridge demolition, characterized in that: include: A breaker hammer is provided with a hydraulic cylinder inside, the piston rod of the hydraulic cylinder movably extends from the bottom of the breaker hammer and is coaxially connected to a drill rod, the drill rod is provided with a plurality of fixing members extending outward perpendicularly to the side walls thereof, and the bottom of the breaker hammer is provided with a plurality of connecting rods extending downward perpendicularly to the bottom wall thereof, the bottoms of the plurality of connecting rods are all fixed to a fixing ring, and the fixing ring is coaxially arranged with the drill rod; Multiple groups of auxiliary crushing members, each group of auxiliary crushing members includes a first support arm and a second support arm hinged to each other, the other end of the first support arm is hinged to any fixed member, the other end of the second support arm is provided with an auxiliary drill bit extending toward the bottom of the drill rod, and the second support arm is rotatably sleeved on the outer circumference of the fixed ring; The second arm of each group of auxiliary crushing members is provided with a first elongated through hole, and a first slide rail and a second slide rail are respectively provided on opposite side walls of the first through hole. The second arm is also provided with a second elongated through hole, and the second through hole is connected to the first through hole through the first slide rail. The length directions of the first through hole, the second through hole, the first slide rail, and the second slide rail are all consistent with the extension direction of the second arm, and a kit is slidably installed in the first through hole. The kit is a cylindrical structure, with a first slider and a second slider symmetrically arranged on its outer wall. The first slider and the kit are correspondingly provided with threaded holes that penetrate each other. The first slider and the second slider are respectively accommodated in the first slide rail and the second slide rail, and slide together with the kit in the first through hole. The bearing sleeve on the fixed ring is provided with multiple rotating rings, each rotating ring is matched and inserted into the kit on the second support arm of each group of auxiliary crushing parts, and a bolt is inserted through the second through hole, and the bolt is matched and screwed into the threaded hole to abut against the outer wall of the rotating ring.

2. The crushing device for bridge demolition according to claim 1, characterized in that: Each first arm is detachably hinged to the corresponding fixing piece, and a side opening is provided at one end of the first through hole on each second arm. A notch is provided on the side wall of the kit, so that the kit has a semi-enclosed structure, and the side opening and the notch are connected to each other for the fixing ring to pass through and for the rotating ring to be accommodated in the kit.

3. The crushing device for bridge demolition according to claim 2, characterized in that: The cross section of the fixed ring is circular, and its diameter is smaller than the inner diameter of the rotating ring. The outer diameter of the rotating ring is smaller than the inner diameter of the sleeve. The widths of the side opening and the notch are both larger than the outer diameter of the rotating ring.

4. The crushing device for bridge demolition according to claim 1, characterized in that: A plurality of fixing members are symmetrically arranged around the outer side wall of the drill rod, so that a plurality of groups of auxiliary crushing members are symmetrically arranged around the outer periphery of the drill rod.

5. The crushing device for bridge demolition according to claim 1, characterized in that: Each connecting rod is spaced apart between any two groups of auxiliary crushing parts.

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