Tower crane for building demolition

Abstract

The utility model discloses a tower crane for building demolition, which comprises a tower body, a rotating beam arm, a working platform, a moving table, a steel wire rope and a hoisting balancing weight, a lifting hook is arranged at the bottom of the hoisting balancing weight, a steel wire rope guide block is arranged on the surface of the top of the hoisting balancing weight, the rotating beam arm is connected with the tower body, the moving table is connected with the rotating beam arm, and the working platform is connected with the steel wire rope guide block. A lifting hook at the bottom of the lifting balancing weight is connected with the operation platform, the steel wire rope is connected with the movable table and the steel wire rope guide block, a mounting seat is arranged on the lifting balancing weight, and a lubricating mechanism is arranged on the mounting seat. Lubricating design for protecting the steel wire rope is adopted, a pneumatic cylinder feeding piece is started, air pressure in the injection barrel is increased, lubricating oil is extruded, the lubricating oil enters an oil storage cavity in the lubricating ring from the injection barrel and a conveying pipe, the lubricating oil is extruded out of oil distribution holes, the steel wire rope penetrates through the lubricating ring, and the lubricating oil extruded out of the oil distribution holes is smeared on the surface of the steel wire rope. Friction of the steel wire rope is reduced, and the possibility of friction, abrasion and breakage is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of tower cranes, and in particular relates to a tower crane for demolishing buildings. Background Art

[0002] Building demolition is a routine construction project. Building demolition involves a series of dangerous factors. It is necessary to maintain the demolition area and ensure that the construction site personnel are well equipped with necessary protective equipment. For the demolition of high-rise buildings, appropriate high-altitude operation techniques and protective measures should be adopted, such as using hanging baskets, tower cranes, scaffolding, aerial work platforms, etc., to reduce risks and improve the safety and efficiency of high-altitude demolition operations. Tower cranes are temporary support structures used to build buildings or large equipment. They are mainly used to transport, erect, and dismantle building components. Tower cranes are widely used in building demolition.

[0003] The tower crane is mainly composed of a tower body, a rotating arm, a hydraulic system, a hook system and an operating platform. The hook system hoists the operating platform and controls the movement of the operating platform. When the hook hoists the operating platform and tilts, the wire rope supports the hook and the operating platform. In weather with excessive wind speed and at high altitudes, the hook will tilt, the wire rope will wear, and even the wire rope will corrode and rust, resulting in wire rope breakage. In the case of a wire rope hoisting operating platform used at high altitude, the wire rope supporting the hook cannot be lubricated, nor can the tilting amplitude of the hook be reduced to reduce wear and protect the wire rope. When the tower crane is in use, there is a problem of no design to protect the wire rope. For this reason, the present application proposes a tower crane for building demolition. Utility Model Content

[0004] The utility model aims to provide a crane for demolishing buildings, so as to solve the problem that there is no design for protecting steel wire ropes when the crane is used at high altitude as mentioned in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a crane for building demolition, comprising a tower body, a rotating beam arm, an operating platform, a mobile platform, a steel wire rope and a lifting counterweight, a hook is provided on the bottom of the lifting counterweight, a steel wire rope guide block is provided on the top surface of the lifting counterweight, the rotating beam arm is connected to the tower body, the mobile platform is connected to the rotating beam arm, the hook at the bottom of the lifting counterweight is connected to the operating platform, the steel wire rope is connected to the mobile platform and the steel wire rope guide block, a mounting seat is provided on the lifting counterweight, a lubrication mechanism is provided on the mounting seat, the lubrication mechanism comprises a material injection barrel and a pneumatic cylinder feeding piece, a lubricating oil storage barrel, and a lubricating oil storage barrel. and a feed pipe and a lubricating ring, the injection barrel is installed on the mounting seat, one end of the pneumatic cylinder feeding piece is embedded in the injection barrel, the two ends of the feed pipe are respectively connected to the injection barrel and the lubricating ring, the lubricating oil storage barrel is connected to the injection barrel, an oil storage cavity is provided inside the lubricating ring, and an oil distribution hole connected to the oil storage cavity is provided on the inner side wall of the lubricating ring; a guide wheel seat is provided on the end of the mounting seat away from the lifting counterweight block, a stabilizing beam column is provided on the lifting counterweight block, a connecting column is provided at the end of the stabilizing beam column, a limiting column is provided on the connecting column, a limiting column is provided on the side of the working platform, a rubber ring is provided inside one end of the limiting column, and the limiting column passes through the center position of the rubber ring.

[0006] Preferably, the feed pipe is connected to the injection barrel and the inside of the lubricating ring, the lubricating oil storage barrel is connected to the inside of the injection barrel, the feed pipe is connected to the oil storage cavity, and the pneumatic cylinder feeding part includes a cylinder body and a piston, and one end of the piston is embedded in the interior of the injection barrel.

[0007] Preferably, the mounting seat includes an inclined portion and a horizontal portion, the lifting counterweight block is connected to the horizontal portion, the injection barrel and the guide wheel seat are connected to the inclined portion, and a guide roller is provided on the guide wheel seat, and the guide roller is a wheel-shaped structure with wide ends and a concave middle.

[0008] Preferably, the connecting column includes a horizontal rod in the middle position and an inclined flat cross rod, the lifting counterweight block is connected to the horizontal rod, the connecting column is connected to the balance rod, and the limiting column is perpendicular to the connecting column.

[0009] Preferably, the limiting column comprises a stabilizing column and a connecting ring, two ends of the stabilizing column are respectively connected to the limiting column and the connecting ring, and the rubber ring is installed on the inner surface of the connecting ring.

[0010] Preferably, evenly distributed semicircular grooves are provided on the circular edge of the rubber ring that is close to the limiting column connecting ring.

[0011] Preferably, a fixing column is provided on the connecting column, a diverter block with an airfoil-shaped cross section is provided in the middle of the fixing column, and an isosceles trapezoidal gap is formed between the fixing column and the connecting column.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The utility model has a lubrication design for protecting the steel wire rope. When the pneumatic cylinder feeding part is started, the air pressure inside the injection barrel is increased, so that the lubricating oil is squeezed. The lubricating oil enters the oil storage cavity inside the lubricating ring from the injection barrel and the feeding pipe, and the lubricating oil is squeezed out from the oil distribution hole. The steel wire rope passes through the lubricating ring, and the lubricating oil squeezed out from the oil distribution hole is smeared on the surface of the steel wire rope, thereby reducing the friction of the steel wire rope and reducing the possibility of friction, wear and breakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 For the utility model Figure 1 The enlarged structural diagram of the middle B part;

[0016] Figure 3 For the utility model Figure 1 A schematic diagram of the enlarged structure of the middle part A;

[0017] Figure 4 It is a schematic cross-sectional structure diagram of the lubrication ring of the utility model;

[0018] In the figure: 1. tower body; 2. rotating beam arm; 4. working platform; 5. stable beam column; 6. firm column; 7. mounting seat; 31. moving platform; 32. wire rope; 33. lifting counterweight block; 41. limiting column; 51. connecting column; 61. diverter block; 71. guide wheel seat; 81. injection barrel; 82. pneumatic cylinder loading part; 83. lubricating oil storage barrel; 84. feeding pipe; 85. lubricating ring; 411. rubber ring; 511. limiting column; 851. oil storage chamber; 852. oil distribution hole. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] Example

[0021] See also Figures 1 to 4The utility model provides a technical solution: a crane for demolishing buildings, comprising a tower body 1, a rotating beam arm 2, an operating platform 4, a mobile platform 31, a wire rope 32 and a lifting counterweight 33, a hook is provided on the bottom of the lifting counterweight 33, a wire rope guide block is provided on the top surface of the lifting counterweight 33, the rotating beam arm 2 is connected to the tower body 1, the mobile platform 31 is connected to the rotating beam arm 2, the hook at the bottom of the lifting counterweight 33 is connected to the operating platform 4, the wire rope 32 is connected to the mobile platform 31 and the wire rope guide block, the method of using the crane is a conventional technical means, and this application will not be described in detail; the lifting counterweight 33 connected to the wire rope 32 has the function of reducing the tilt amplitude, avoiding connection with the operating platform 4 The hook on the lifting counterweight block 33 tilts greatly, thereby wearing the wire rope 32; the lifting counterweight block 33 is provided with a mounting seat 7, and the lifting counterweight block 33 and the mounting seat 7 are combined by a conventional method. A lubricating mechanism is provided on the mounting seat 7, and the lubricating mechanism includes an injection barrel 81 and a pneumatic cylinder loading piece 82, a lubricating oil storage barrel 83, a feeding pipe 84 and a lubricating ring 85. The injection barrel 81 is installed on the mounting seat 7, and the injection barrel 81 and the mounting seat 7 are combined by a conventional method. One end of the pneumatic cylinder loading piece 82 is embedded in the injection barrel 81, and the two ends of the feeding pipe 84 are respectively connected to the injection barrel 81 and the lubricating ring 85, and the lubricating oil storage barrel 83 is connected to the injection barrel 81. The lubricating ring 85 is provided with The oil storage cavity 851, the inner wall of the lubricating ring 85 is provided with an oil distribution hole 852 connected to the oil storage cavity 851, and the lubricating oil storage barrel 83 stores lubricating oil. The pneumatic cylinder feeding piece 82 is started, and the air pressure inside the injection barrel 81 is increased, so that the lubricating oil is squeezed, and the lubricating oil enters the oil storage cavity 851 inside the lubricating ring 85 from the injection barrel 81 and the feeding pipe 84, and the lubricating oil is squeezed out from the oil distribution hole 852. The wire rope 32 passes through the lubricating ring 85, and the lubricating oil squeezed out of the oil distribution hole 852 is smeared on the surface of the wire rope 32, reducing the friction of the wire rope 32 and reducing the possibility of friction, wear and breakage; a guide wheel seat 71 is provided on the end of the mounting seat 7 away from the lifting counterweight block 33, and the guide wheel seat 71 limits the wire rope 3 2. Make the steel wire rope 32 accurately pass through the lubrication ring 85. A stabilizing beam column 5 is provided on the lifting counterweight block 33. A connecting column 51 is provided at the end of the stabilizing beam column 5. The stabilizing beam column 5, the lifting counterweight block 33 and the connecting column 51 are combined by conventional methods. A limiting column 511 is provided on the connecting column 51. The limiting column 511 and the connecting column 51 are combined by conventional methods. A limiting column 41 is provided on the side of the working platform 4. A rubber ring 411 is provided inside one end of the limiting column 41. The limiting column 511 passes through the center position of the rubber ring 411. The limiting column 41 limits the limiting column 511. The load on the lifting counterweight block 33 and the working platform 4 is large, which avoids a large deviation of the stabilizing beam column 5, the connecting column 51 and the limiting column 511.

[0022] In this embodiment, the feed pipe 84 is connected to the interior of the injection barrel 81 and the lubricating ring 85, the lubricating oil storage barrel 83 is connected to the interior of the injection barrel 81, the feed pipe 84 is connected to the oil storage chamber 851, and the pneumatic cylinder loading component 82 includes a cylinder body and a piston, one end of the piston is embedded in the interior of the injection barrel 81. When the pneumatic cylinder loading component 82 is started, the piston moves, causing the internal air pressure of the injection barrel 81 to change, which is beneficial to the delivery of the lubricating oil from the lubricating oil storage barrel 83 into the injection barrel 81.

[0023] In this embodiment, the mounting seat 7 includes an inclined portion and a horizontal portion, the lifting counterweight block 33 is connected to the horizontal portion, the injection barrel 81 and the guide wheel seat 71 are connected to the inclined portion, and a guide roller is provided on the guide wheel seat 71. The guide roller is a wheel-shaped structure that is wide at both ends and concave in the middle. The guide wheel seat 71 limits the wire rope 32.

[0024] In this embodiment, the connecting column 51 includes a horizontal rod in the middle position and an inclined flat cross rod. The lifting counterweight block 33 is connected to the horizontal rod, the connecting column 51 is connected to the balance rod, and the limiting column 511 is perpendicular to the connecting column 51.

[0025] In this embodiment, the limiting column 41 includes a stabilizing column and a connecting ring. The two ends of the stabilizing column are respectively connected to the limiting column 41 and the connecting ring. The rubber ring 411 is installed on the inner surface of the connecting ring. The rubber ring 411 is close to the limiting column 41. A semicircular groove is evenly distributed on the circular edge of the connecting ring. The limiting column 41 limits the limiting column 511 to prevent the limiting column 511 from being significantly deflected. The rubber ring 411 plays a vibration reduction role, so that the limiting column 41 and the limiting column 511 are in flexible contact.

[0026] In this embodiment, a fixing column 6 is provided on the connecting column 51, and a diversion block 61 with an airfoil-shaped cross-section is provided in the middle position of the fixing column 6. An isosceles trapezoidal gap is formed between the fixing column 6 and the connecting column 51. The fixing column 6, the diversion block 61 and the connecting column 51 are combined by conventional methods to play a certain role in diverting wind.

[0027] The working principle and use process of this utility model:

[0028] When the steel wire rope 32 is hoisting the working platform 4, the pneumatic cylinder loading part 82 is started, the air pressure inside the injection barrel 81 is increased, so that the lubricating oil is squeezed, and the lubricating oil enters the oil storage chamber 851 inside the lubricating ring 85 from the injection barrel 81 and the feed pipe 84, and the lubricating oil is squeezed out from the oil distribution hole 852. The steel wire rope 32 passes through the lubricating ring 85, and the lubricating oil squeezed out of the oil distribution hole 852 is smeared on the surface of the steel wire rope 32, thereby reducing the friction of the steel wire rope 32 and the possibility of friction, wear and breakage. The rubber ring 411 plays a vibration reduction role, so that the limit column 41 is in flexible contact with the limiting column 511, and the load of the lifting counterweight block 33 and the working platform 4 is large, which avoids large deviations of the stable beam column 5, the connecting column 51 and the limiting column 511.

[0029] Although the embodiments of the present invention have been shown and described (see the above detailed description for details), it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A crane tower for demolishing buildings, comprising a tower body (1), a rotating beam arm (2), an operating platform (4), a mobile platform (31), a steel wire rope (32) and a lifting counterweight (33), wherein a hook is provided on the bottom of the lifting counterweight (33), a steel wire rope guide block is provided on the top surface of the lifting counterweight (33), the rotating beam arm (2) is connected to the tower body (1), the mobile platform (31) is connected to the rotating beam arm (2), the hook at the bottom of the lifting counterweight (33) is connected to the operating platform (4), the steel wire rope (32) is connected to the mobile platform (31) and the steel wire rope guide block, and characterized in that: The lifting counterweight (33) is provided with a mounting seat (7), and the mounting seat (7) is provided with a lubricating mechanism, which includes an injection barrel (81), a pneumatic cylinder loading piece (82), a lubricating oil storage barrel (83), a feeding pipe (84) and a lubricating ring (85). The injection barrel (81) is installed on the mounting seat (7), one end of the pneumatic cylinder loading piece (82) is embedded in the injection barrel (81), two ends of the feeding pipe (84) are respectively connected to the injection barrel (81) and the lubricating ring (85), the lubricating oil storage barrel (83) is connected to the injection barrel (81), and the lubricating ring (85) is provided with an oil storage barrel (83). The lubricating ring (85) is provided with an oil distribution hole (852) connected to the oil storage cavity (851), the inner wall of the lubricating ring (85) is provided with a guide wheel seat (71) at the end of the mounting seat (7) away from the lifting counterweight block (33), the lifting counterweight block (33) is provided with a stabilizing beam column (5), the end of the stabilizing beam column (5) is provided with a connecting column (51), the connecting column (51) is provided with a limiting column (511), the side of the working platform (4) is provided with a limiting column (41), the interior of one end of the limiting column (41) is provided with a rubber ring (411), and the limiting column (511) passes through the center position of the rubber ring (411).

2. A building demolition crane according to claim 1, characterized in that: The feed pipe (84) is connected to the injection barrel (81) and the interior of the lubricating ring (85), the lubricating oil storage barrel (83) is connected to the interior of the injection barrel (81), the feed pipe (84) is connected to the oil storage chamber (851), and the pneumatic cylinder feeding member (82) includes a cylinder body and a piston, one end of the piston is embedded in the interior of the injection barrel (81).

3. A building demolition crane according to claim 1, characterized in that: The mounting seat (7) comprises an inclined portion and a horizontal portion, the lifting counterweight (33) is connected to the horizontal portion, the injection barrel (81) and the guide wheel seat (71) are connected to the inclined portion, and a guide roller is provided on the guide wheel seat (71), the guide roller being a wheel-shaped structure with wide ends and a concave middle.

4. A building demolition crane according to claim 1, characterized in that: The connecting column (51) includes a horizontal rod in the middle and an inclined horizontal cross rod. The lifting counterweight (33) is connected to the horizontal rod, the connecting column (51) is connected to the balance rod, and the limiting column (511) is perpendicular to the connecting column (51).

5. The building demolition crane according to claim 1, characterized in that: The limiting column (41) comprises a stabilizing column and a connecting ring, the two ends of the stabilizing column are respectively connected to the limiting column (41) and the connecting ring, and the rubber ring (411) is installed on the inner surface of the connecting ring.

6. A building demolition crane according to claim 5, characterized in that: The rubber ring (411) is closely attached to the limiting column (41) and is provided with evenly distributed semicircular grooves on the circular edge of the connecting ring.

7. The building demolition crane according to claim 1, characterized in that: A fixing column (6) is arranged on the connecting column (51), a diverter block (61) with an airfoil cross section is arranged in the middle of the fixing column (6), and an isosceles trapezoidal gap is formed between the fixing column (6) and the connecting column (51).

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