A machine platform and a boom tower crane and a flat arm tower crane

Abstract

The present invention relates to a machine platform, a boom tower crane and a flat arm tower crane, and relates to the technical field of mechanical equipment, including a truss, a first connection part for connecting a bearing seat of a boom crane is arranged at the bottom tail of the truss, a second connection part for connecting a balance arm of a flat arm crane is arranged at the tail end of the truss, a third connection part for connecting a herringbone, a fourth connection part for connecting a lifting arm of a boom crane, a fifth connection part for connecting a counterweight of a boom crane, a seventh connection part for connecting a lifting mechanism, and an eighth connection part for connecting a rotating crane of a boom crane are arranged on the top surface of the truss, and a sixth connection part for connecting a counterweight of a flat arm crane is arranged at the front end of the truss. The device can realize the interchange of the upper structure of a flat arm tower crane and the upper structure of a boom tower crane by adjusting the position of the machine platform, which greatly reduces the construction cost, improves the product utilization rate, improves the engineering construction efficiency, and shortens the construction period.

Description

Technical Field

[0001] The invention relates to a machine platform, a movable arm tower crane and a flat arm tower crane, and relates to the technical field of mechanical equipment. Background Art

[0002] With the development of my country's economy, the demand for high-rise buildings is increasing, which is inseparable from the use of flat-arm cranes and jib cranes. Super high-rise buildings mostly use truss-core tube structures, and the vertical transportation crane is heavy, the lifting distance is long, the lifting times are many, and the construction environment is relatively complex. Therefore, the construction unit must combine the actual situation of the construction site and conduct in-depth research on the selection and attachment method of the crane to ensure that it meets the technical requirements of super high-rise building construction.

[0003] The applicant has found that the conventional flat-arm cranes and jib cranes in the prior art cannot be interchanged with each other, which increases construction costs and inventory pressure, has low product utilization, and high capital costs. Summary of the invention

[0004] The object of the present invention is to provide a machine platform, a boom tower crane and a flat arm tower crane to solve the technical problem in the prior art that the upper part of a traditional flat arm crane and the upper part of a boom crane cannot communicate with each other, resulting in high construction costs.

[0005] In order to solve the above problems, a machine platform, a boom tower crane and a flat-arm tower crane involved in the present invention adopt the following technical solutions:

[0006] The present invention provides a machine platform for realizing the interchange between a flat-arm tower crane and a jib tower crane, comprising a truss, a first connection part for connecting to a support seat of a jib crane is arranged at the tail of the bottom surface of the truss, a second connection part for connecting to a balance arm of a flat-arm crane is arranged at the tail end of the truss, a third connection part for connecting to an A-frame, a fourth connection part for connecting to a lifting arm of a jib crane, a fifth connection part for connecting to a counterweight of the jib crane, a seventh connection part for connecting to a lifting mechanism and an eighth connection part for connecting to a rotating crane of the jib crane are arranged on the top surface of the truss, and a sixth connection part for connecting to the counterweight of the flat-arm crane is arranged at the front end of the truss.

[0007] Preferably, the truss includes two symmetrically spaced truss bodies and a connecting plate. The two truss bodies are connected by a plurality of webs. A connecting plate is fixed to the tail of any truss body, and some connection points of the first connecting part, the second connecting part, the fourth connecting part and the third connecting part are all located on the connecting plate.

[0008] Preferably, the truss body comprises a lower chord and an upper chord formed of I-beams, and a web member formed of a steel pipe is provided between the upper chord and the lower chord to connect them.

[0009] Preferably, connecting plates are fixed on both sides of the tail of any truss body, an end plate connecting the two connecting plates is arranged between the two connecting plates, and the end plate and the two corresponding connecting plates are integrally formed.

[0010] Preferably, the first connecting portion and the second connecting portion share the same connecting hole.

[0011] The present invention provides a flat-arm tower crane, comprising a lower structure constituting the lower part of the crane, and also comprising an upper structure constituting the upper part of the crane, the upper structure comprising a counterweight, a lifting mechanism, a rotating crane, a luffing mechanism, a hook group, a trolley, a balance arm, a lifting arm and a machine platform, one end of the balance arm is connected to a second connecting part, the other end of the balance arm is connected to a slewing mechanism, the lifting mechanism and the rotating crane are respectively arranged on the top surface of the machine platform, the counterweight is connected to a sixth connecting part, the luffing mechanism is arranged on the balance arm, and the trolley and the hook group are arranged on the lifting arm.

[0012] The present invention provides a jib tower crane, comprising a lower structure constituting the lower part of the crane, and also comprising an upper structure constituting the upper part of the crane, the upper structure comprising a counterweight, a lifting mechanism, a herringbone frame, a variable-length movable pulley block, a hook block, a boom, and a machine platform as described in any one of claims 1 to 4 above, wherein a first connecting portion of the machine platform is connected to the lower structure, the counterweight is connected to a fifth connecting portion, the herringbone frame is connected to a third connecting portion of the machine platform, the boom is connected to a fourth connecting portion of the machine platform, the lifting mechanism is fixed to the top surface of the machine platform, the variable-length movable pulley block connects the herringbone frame and the boom, and the hook block is installed on the boom.

[0013] The beneficial effects of the present invention are as follows:

[0014] The present invention provides a machine platform for realizing the interchange between a flat-arm tower crane and a boom tower crane. The difference from the prior art lies in that the bottom of the machine platform can be connected to the lower structure of the boom tower crane, and the tail end of the machine platform can be connected to the balance arm of the flat-arm tower crane. At the same time, a connecting part for connecting a herringbone and a balance arm of the boom tower crane is provided on the machine platform. The machine platform has strong versatility and realizes the interchange between the flat-arm tower crane and the boom tower crane by cooperating with the boom tower crane and the flat-arm tower crane through interfaces at different positions. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the following briefly introduces the drawings required for use in the embodiment:

[0016] Figure 1 This is the front view of the machine;

[0017] Figure 2 This is a top view of the machine;

[0018] Figure 3 It is the overall structural diagram of the flat arm crane;

[0019] Figure 4 This is a schematic diagram of the overall structure of a jib crane.

[0020] Explanation of the reference numerals: 1, base frame; 2, tower body; 3, hydraulic jacking system; 4, sleeve frame; 5, standard section introduction device; 6, bearing seat; 7, slewing mechanism; 8, counterweight; 9, main lifting mechanism; 10, rotating crane; 11, balance arm; 12, luffing mechanism; 13, driver's cab; 14, lifting arm; 15, trolley; 16, hook group; 17, herringbone; 18, luffing movable pulley group; 19, machine platform; 191, truss body; 192, connecting plate; 193, first connecting part; 194, second connecting part; 195, third connecting part; 196, fourth connecting part; 197, fifth connecting part; 198, eighth connecting part; 199, seventh connecting part; 200, sixth connecting part DETAILED DESCRIPTION

[0021] In order to make the technical purpose, technical solution and beneficial effects of the present invention more clear, the technical solution of the present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0022] The present invention provides a machine platform 19 for realizing the interchange between a horizontal arm tower crane and a movable arm tower crane, such as Figure 1-2 As shown, the platform 19 includes a truss, a first connection portion 193 for connecting to a support 6 of a boom crane is provided at the tail end of the bottom surface of the truss, a second connection portion 194 for connecting to a balance arm 11 of a jib crane is provided at the tail end of the truss, a third connection portion 195 for connecting to an A-frame 17, a fourth connection portion 196 for connecting to the boom 14 of the jib crane, a fifth connection portion 197 for connecting to the counterweight 8 of the jib crane, a seventh connection portion 199 for connecting to a lifting mechanism and an eighth connection portion 198 for connecting to a rotating crane 10 of the jib crane are provided on the top surface of the truss, and a sixth connection portion 200 for connecting to the counterweight 8 of the jib crane is provided at the front end of the truss.

[0023] The structural forms of the third connecting part 195, the seventh connecting part 199 and the eighth connecting part 198 can all be set to ear plate structures welded on the truss. At the same time, the structural form of the seventh connecting part 199 can be ignored. Since both the boom and the horizontal arm need to adopt a lifting mechanism, the lifting mechanism can adopt a structural form in which the ear plate is detachably installed on the truss, and can also adopt a structural form fixed to the truss by welding.

[0024] In the above, in addition to using the ear plate form directly fixed on the truss, the structure constituting the first connecting part 193, the second connecting part 194, and the fourth connecting part 196 can also use the connecting plate 192 involved in the specific structure of the truss to be described below. The truss includes two symmetrically spaced truss bodies 191 and a connecting plate 192. The two truss bodies 191 are connected by a plurality of webs. A connecting plate 192 is fixed to the tail of any truss body 191, and some connection points of the first connecting part 193, the second connecting part 194, the fourth connecting part 196 and the third connecting part 195 are all located on the connecting plate 192. Some connection points on the connecting plate 192 corresponding to the first connecting part 193, the second connecting part 194, the fourth connecting part 196 and the third connecting part 195 that connect the various parts are made by punching holes on the connecting plate 192 to adapt to the passage of fixing bolts or pins, so as to facilitate the passage of bolts to fix the components corresponding to the connecting parts on the connecting plate 192 or to pass pins to realize the structural form of hinged rotation of the connecting parts and the corresponding components (the hinge is mainly for the fourth connecting part 196 connecting the boom 14 of the jib crane).

[0025] The truss body 191 includes a lower chord and an upper chord made of I-beams, and a web made of steel pipe is arranged between the upper and lower chords to connect them. The purpose of this arrangement is to strengthen the strength of the truss. At the same time, the connecting plate 192 is triangular in shape, and the middle of the triangular shape is hollow to reduce the overall weight of the truss. The three corners of the connecting plate 192 extend outward to form ear plates corresponding to each connecting part. On the basis of ensuring the overall structural strength of the connecting plate 192, the stress-bearing area of ​​the connecting surface (ear plate) of the connecting plate 192 is increased, so that the connection of the truss is stable and not easily damaged by stress. Furthermore, connecting plates 192 are fixed on both sides of the tail of any truss body 191, and end plates connecting them are arranged between the two connecting plates 192. The end plates and the two corresponding connecting plates 192 are integrally formed.

[0026] The first connection portion 193 and the second connection portion 194 share the same connection hole, which refers to a connection hole that can be used by the first connection portion 193 and the second connection and is located on the outermost side of the bottom surface of the rear end of the truss body 191.

[0027] The present invention also provides a flat arm tower crane using the above-mentioned machine platform 19 capable of realizing the interchange between flat arm and boom, and a jib tower crane using the above-mentioned machine platform 19 capable of realizing the interchange between flat arm and boom. The lower structure of the flat arm tower crane is the same as the lower structure of the jib tower crane, and both include a base frame 1, a tower body 2, a jacking frame 4, a hydraulic jacking system 3, a standard section introduction device 5, a bearing seat 6, a driver's cab 13, and a slewing mechanism 7. The base frame 1 is fixedly installed on the ground, and the base frame 1 and the tower body 2 are connected by bolts. The tower body 2 is It is composed of several standard sections, the lifting frame 4 is placed on the outside of the tower body 2, and the hydraulic lifting system 3 is installed on the corresponding joints of the lifting frame 4. The hydraulic lifting system 3 is a mechanism that enables the lower structure of the crane to achieve self-elevation. The hydraulic lifting system 3 is mainly composed of a climbing frame and a lifting cylinder. The bearing seat 6 and the standard section introduction device 5 are connected by a pin shaft, and the transition section and the tower body 2 and the frame 4 are connected by bolts. The driver's cab 13 and the slewing mechanism 7 are placed above the bearing seat 6. The slewing mechanism 7 is a mechanism that allows the slewing part of the crane to slew horizontally. When the crane performs a slewing motion, the part above it rotates around the center of the tower body 2, while the lower part is fixed. The above-mentioned mechanism and its actuation principle are well known in the industry, so they will not be repeated in this article.

[0028] The difference between a flat arm crane and a jib crane lies in the superstructure installed on the lower structure, wherein a flat arm tower crane provided by the present invention comprises a lower structure and an upper structure installed on the lower structure, wherein the upper structure comprises an upper structure constituting the upper part of the crane, the upper structure comprises a counterweight 8, a lifting mechanism, a rotating crane 10, a luffing mechanism 12, a hook group 16, a trolley 15, a balance arm 11, a boom 14 and a platform 19, one end of the balance arm 11 is connected to the second connecting part 194, and the other end of the balance arm 11 is connected to the slewing mechanism 7, the lifting mechanism and the rotating crane 10 are respectively installed on the top surface of the platform 19, the counterweight 8 is connected to the sixth connecting part 200, the luffing mechanism 12 is installed on the balance arm 11, and the trolley 15 and the hook group 16 are arranged on the boom 14. The length of the balance arm 11 in the prior art is greater than that of the balance arm 11 in the present embodiment because the detachably connected balance arm 11 and the platform 19 in the present embodiment together constitute the overall balance arm 11 of the jack. The rotating crane 10 and the counterweight 8 are both detachably connected to the platform 19.

[0029] The present invention provides a jib tower crane, comprising a lower structure and an upper structure installed on the lower structure, wherein the upper structure comprises a counterweight 8, a lifting mechanism, a herringbone frame 17, a luffing movable pulley block 18, a hook block 16, a boom 14 and a platform 19, wherein a first connecting portion 193 of the platform 19 is connected to the lower structure, the counterweight 8 is connected to a fifth connecting portion 197, the herringbone frame 17 is connected to a third connecting portion 195 of the platform 19, the boom 14 is connected to a fourth connecting portion 196 of the platform 19, the lifting mechanism is fixed to the top surface of the platform 19, the luffing movable pulley block 18 connects the herringbone frame 17 and the boom 14, and the hook block 16 is installed on the boom 14. The herringbone frame 17, the boom 14 and the lower structure of the crane are all detachably connected to the platform 19 to facilitate the use of the boom and the flat arm.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate but not limit the technical solutions of the present invention, and any equivalent substitutions of the present invention and any modifications or partial substitutions that do not depart from the spirit and scope of the present invention should be included in the scope of protection of the claims of the present invention.

Claims

1. A machine platform for realizing the interchange between a flat-arm tower crane and a movable-arm tower crane, characterized in that: It includes a truss, a first connection part for connecting to a support of a boom crane is provided at the tail end of the bottom surface of the truss, a second connection part for connecting to a balance arm of a jib crane is provided at the tail end of the truss, a third connection part for connecting to an A-frame, a fourth connection part for connecting to the boom of the jib crane, a fifth connection part for connecting to the counterweight of the jib crane, and an eighth connection part for connecting to the rotating crane of the jib crane are provided on the top surface of the truss, and a sixth connection part for connecting to the counterweight of the jib crane is provided at the front end of the truss. The truss includes two symmetrically spaced truss bodies and a connecting plate. The two truss bodies are connected by a plurality of webs. A connecting plate is fixed to the tail of any truss body, and some connection points of the first connection part, the second connection part, the fourth connection part and the third connection part are all located on the connecting plate.

2. A machine platform for realizing the interchange between a horizontal arm tower crane and a movable arm tower crane according to claim 1, characterized in that: The truss body comprises a lower chord and an upper chord formed of I-beams, and a web member formed of a steel pipe is arranged between the upper chord and the lower chord to connect them.

3. The machine platform for realizing the interchange between a horizontal arm tower crane and a movable arm tower crane according to claim 1, characterized in that: Connecting plates are fixed on both sides of the tail of any truss body, and an end plate connecting the two connecting plates is arranged between the two connecting plates. The end plate and the two corresponding connecting plates are formed in one piece.

4. The machine platform for realizing the interchange between a horizontal arm tower crane and a movable arm tower crane according to claim 1, characterized in that: The first connection portion and the second connection portion share the same connection hole.

5. The machine platform for realizing the interchange between a horizontal arm tower crane and a movable arm tower crane according to claim 1, characterized in that: A seventh connection portion connected to the lifting mechanism is also arranged on the top surface of the truss.

6. A flat-jib tower crane, comprising a lower structure constituting the lower part of the crane, characterized in that: It also includes an upper structure constituting the upper part of the crane, the upper structure including a counterweight, a lifting mechanism, a rotating crane, a luffing mechanism, a hook group, a trolley, a balance arm, a lifting arm and a machine platform as described in any one of claims 1 to 4 above, one end of the balance arm is connected to the second connecting part, the other end of the balance arm is connected to the slewing mechanism, the lifting mechanism and the rotating crane are respectively arranged on the top surface of the machine platform, the counterweight is connected to the sixth connecting part, the luffing mechanism is arranged on the balance arm, and the trolley and the hook group are arranged on the lifting arm.

7. A luffing jib tower crane comprising a lower structure constituting the lower part of the crane, characterized in that: It also includes an upper structure constituting the upper part of the crane, the upper structure including a counterweight, a lifting mechanism, an A-frame, a luffing movable pulley block, a hook block, a boom and a machine platform as described in any one of claims 1 to 4 above, a first connection portion of the machine platform is connected to the lower structure, the counterweight is connected to the fifth connection portion, the A-frame is connected to the third connection portion of the machine platform, the boom is connected to the fourth connection portion of the machine platform, the lifting mechanism is fixed to the top surface of the machine platform, the luffing movable pulley block connects the A-frame and the boom, and the hook block is installed on the boom.

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