Top lifting mechanism of tower building machine for tower building

Abstract

The utility model relates to the technical field of lifting mechanisms for engineering construction, and discloses a top lifting mechanism of a tower building machine for tower building, which comprises a sleeve frame upper section, a guide wheel, a base plate, a reversing box and an oil cylinder support, and is characterized in that when an oil cylinder on a sleeve frame lower section is jacked upwards from the position of the oil cylinder support, two oil cylinders on the sleeve frame lower section are jacked upwards from the position of the oil cylinder support; the sleeve frame upper section above is hydraulically jacked up, so that the sleeve frame upper section drives the top platform to ascend on the stand column upper net, hydraulic jacking lifting of the oil cylinder is achieved through fixing of the sleeve frame upper section and the sleeve frame lower section, pulling lifting in a steel cable mode is prevented, and the problem that the oil cylinder is unstable due to the fact that the bearing force of the steel cable pulled by the oil cylinder is too large is solved; the supporting blocks elastically extrude the elastic strips, the supporting blocks elastically abut against the outer sides of the stand columns under the supporting of the elastic strips and the fixing frames, the inclined stand columns are elastically corrected under the elasticity of the elastic strips, and the lifting resistance of the lower sleeve frame section and the upper sleeve frame section is reduced under the elastic movement of the elastic strips.

Description

Technical Field

[0001] This utility model relates to the technical field of construction lifting mechanisms, specifically a top lifting mechanism for a tower building machine used in tower construction. Background Technology

[0002] The lifting mechanism increases the hydraulic oil pressure in the lifting hydraulic cylinder, causing the cylinder to extend and retract, thus lifting the top platform of the tower crane. This allows the steel platform to climb along with the column structure construction, enabling the curtain wall construction to be started earlier during column construction, saving time. However, existing methods use hydraulic cylinders to pull steel cables, which in turn drive bearings to pull the top platform upwards. But using steel cables to pull the top platform can easily lead to excessive load, causing instability. Furthermore, during the platform's ascent, the lifting mechanism needs to climb along the outer perimeter of the column, which can easily cause friction and obstruction. Existing methods typically use guide wheels for rolling, but these guide wheels are very hard. When the column tilts, the vertical movement of the guide wheels on the lifting mechanism can be blocked by the tilted position of the column, increasing the climbing pressure. Utility Model Content

[0003] This utility model provides a top lifting mechanism for a tower construction machine used in tower construction, which overcomes the shortcomings described in the background art.

[0004] The technical solution adopted by this utility model to solve its technical problem is:

[0005] A tower construction machine top lifting mechanism for tower construction includes an upper section of a sleeve, guide wheels, pads, reversing boxes, and cylinder supports. The pads are disposed inside the guide wheels, and the guide wheels are fixedly disposed inside the upper section of the sleeve. The guide wheels are symmetrically disposed on the right-angled sides of the upper section of the sleeve. Four reversing boxes are disposed on the outer periphery of the upper section of the sleeve. The cylinder supports are symmetrically disposed at the lower end of the upper section of the sleeve.

[0006] The upper section of the sleeve frame is provided with a lower section below the central column, and the guide wheel and the reversing box are symmetrically arranged in the lower section of the sleeve frame. The two cylinder supports at the upper end of the lower section of the sleeve frame are correspondingly arranged with the two cylinder supports in the upper section of the sleeve frame. The tripod is arranged on the left and right sides of the lower section of the sleeve frame. The outer end of the upper section of the sleeve frame is provided with a connecting block. The cylinder is provided on the outside of the cylinder support. The reversing box on the outside of the lower and upper sections of the sleeve frame is supported on the inner column. The cylinder supports on both sides of the lower section of the sleeve frame are connected to the cylinder supports at the lower end of the upper section of the sleeve frame through the telescopic rod of the cylinder, and the upper section of the sleeve frame is pushed up by the hydraulic cylinder.

[0007] A preferred technical solution: The reversing box includes a spring, a connecting plate, a round rod, a rotating rod, and a support rod. The rotating rod bearing is located inside the connecting plate, and the support rod is located in the middle of the rotating rod. The round rod has a handle with a collar. The springs on both sides of the support rod are connected to the collars on the round rod. When the collar moves upward in the round rod, it drives the support rod connected to the spring to rotate, and causes the rotating rod to rotate clockwise in the connecting plate. The rotating rod has a protruding block on its side, and the rotating rod drives the protruding block to rotate from a horizontal state to a vertical state.

[0008] A preferred technical solution: The guide wheel is provided with a roller, a fixing frame, a support block and an elastic strip. The fixing frame is fixed to the lower section and the upper section of the sleeve with screws. The outer end of the fixing frame is provided with an elastic strip, and the outer end of the elastic strip is connected to the support block. The middle of the support block is provided with a movable roller, and the roller rolls on the outside of the column. When the column is tilted, the roller is pressed against the outside of the column by the elastic movement of the elastic strip and the support block.

[0009] A preferred technical solution: The elastic strips are evenly spaced and connect the fixing frame and the support block. When the support block is subjected to pressure, the elastic strips buffer and limit the movement.

[0010] Compared with existing technologies, this technical solution has the following advantages:

[0011] In this invention, when the hydraulic cylinder on the lower section of the sleeve lifts upward from the cylinder support position, the two hydraulic cylinders on the lower section of the sleeve hydraulically lift the upper section of the sleeve, causing the upper section of the sleeve to lift the top platform on the column. When the top platform descends, the lower section of the sleeve loosens and is fixed to the column. Under the hydraulic push of the hydraulic cylinder, the lower section of the sleeve descends. After the push is completed, the lower section of the sleeve is fixed to the column through the reversing box. At this time, the upper reversing box loosens its support for the column and, under the hydraulic extension and retraction of the hydraulic cylinder, drives the upper section of the sleeve to move downward, thereby lowering the top platform. The hydraulic lifting and lowering of the sleeve is achieved by fixing the upper and lower sections of the sleeve, preventing the use of steel cables for lifting and avoiding the problem of excessive stress and instability caused by the hydraulic cylinder pulling the steel cable.

[0012] In this invention, the upper and lower sections of the sleeve are slidably moved on the outside of the column via guide wheels. During the sliding, the rollers roll against the outside of the column. When the column tilts, the support block elastically compresses the elastic strip. With the support of the elastic strip and the fixed frame, the support block elastically presses against the outside of the column. Under the elasticity of the elastic strip, the tilted column is elastically corrected. Furthermore, the elastic movement of the elastic strip reduces the lifting resistance of the lower and upper sections of the sleeve. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0014] Figure 1This is an overall drawing of the present utility model.

[0015] Figure 2 This is a three-dimensional schematic diagram of the lower section of the frame and the tripod.

[0016] Figure 3 This is a top view of the upper section of the frame.

[0017] Figure 4 This is a three-dimensional schematic diagram of the commutator box.

[0018] Figure 5 This is a three-dimensional schematic diagram of the guide wheel.

[0019] In the diagram: Upper section of the sleeve - 1, guide wheel - 2, pad - 3, reversing box - 4, hydraulic cylinder support - 5, lower section of the sleeve - 11, tripod - 12, connecting block - 13.

[0020] Spring-41, connecting plate-42, round rod-43, rotating rod-44, support rod-45, protruding block-46.

[0021] Roller-21, Fixing frame-22, Support block-23, Elastic strip-24. Detailed Implementation

[0022] like Figures 1 to 4 As shown, this utility model proposes a top lifting mechanism for a tower construction machine, including an upper section 1 of a sleeve frame, guide wheels 2, pads 3, reversing boxes 4, and hydraulic cylinder supports 5. The pads 3 are disposed inside the guide wheels 2, and the guide wheels 2 are fixedly disposed inside the upper section 1 of the sleeve frame. The guide wheels 2 are symmetrically disposed on the right-angled sides of the upper section 1 of the sleeve frame. There are four reversing boxes 4, which are respectively disposed on the outer sides of the upper section 1 of the sleeve frame. The hydraulic cylinder supports 5 are symmetrically disposed at the lower end of the upper section 1 of the sleeve frame.

[0023] The upper section 1 of the sleeve frame is provided with a lower section 11 of the sleeve frame below the middle column, and the guide wheel 2 and the reversing box 4 are respectively symmetrically arranged in the lower section 11 of the sleeve frame. The two hydraulic cylinder supports 5 provided at the upper end of the lower section 11 of the sleeve frame are correspondingly arranged with the two hydraulic cylinder supports 5 in the upper section 1 of the sleeve frame. The tripod 12 is arranged on the left and right sides of the lower section 11 of the sleeve frame. The outer end of the upper section 1 of the sleeve frame is provided with a connecting block 13. The hydraulic cylinder is provided on the outer side of the hydraulic cylinder support 5. The reversing box 4 on the outer side of the lower section 11 of the sleeve frame and the upper section 1 of the sleeve frame are supported on the inner column. The hydraulic cylinder supports 5 on both sides of the lower section 11 of the sleeve frame are connected to the hydraulic cylinder support 5 at the lower end of the upper section 1 of the sleeve frame through the extension rod of the hydraulic cylinder, and the upper section 1 of the sleeve frame is pushed up by the hydraulic cylinder.

[0024] Furthermore, the connecting block 13 is bolted to the top platform above, and the outer side of the column slides perpendicularly to the upper section 1 and the lower section 11 of the sleeve. The guide wheels 2 are distributed on the four sides, with two on each right-angled side, so that the guide wheels 2 move evenly around the periphery of the column.

[0025] The reversing box 4 includes a spring 41, a connecting plate 42, a round rod 43, a rotating rod 44, and a support rod 45. The rotating rod 44 is bearing-mounted within the connecting plate 42, and the support rod 45 is positioned in the middle of the rotating rod 44. The round rod 43 has a handle with a collar. The springs 41 on both sides of the support rod 45 are connected to the collars of the round rod 43. When the collar moves upward within the round rod 43, it drives the support rod 45 connected to the spring 41 to rotate, causing the rotating rod 44 to rotate clockwise within the connecting plate 42. The rotating rod 44 has a protruding block 46 on its side, and the rotating rod 44 drives the protruding block 46 to rotate from a horizontal state to a vertical state.

[0026] The guide wheel 2 is equipped with a roller 21, a fixing frame 22, a support block 23, and an elastic strip 24. The fixing frame 22 is fixed to the lower section 11 and the upper section 1 of the sleeve frame by screws. The outer end of the fixing frame 22 is provided with an elastic strip 24, and the outer end of the elastic strip 24 is connected to the support block 23. The middle of the support block 23 is provided with a movable roller 21, and the roller 21 rolls on the outside of the column. When the column is tilted, the roller 21 is pressed against the outside of the column by the elastic movement of the elastic strip 24 and the support of the support block 23.

[0027] Furthermore, the elastic strips 24 are evenly spaced and connect the fixing frame 22 and the support block 23. When the support block 23 is subjected to pressure, it is buffered and limited by the elastic strips 24. The elastic strips 24 are made of aluminum alloy, which has strong toughness and a certain degree of elasticity. After the support block 23 is blocked, the roller 21 continues to roll outside the column under the hydraulic push of the oil cylinder, and drives the support block 23 to move and press against the column under the elasticity of the elastic strips 24.

[0028] Furthermore, there are two hydraulic cylinders. The hydraulic top of the hydraulic cylinder is connected to the hydraulic cylinder support 5 at the lower end of the upper section 1 of the sleeve. The inner side of the hydraulic end of the hydraulic cylinder is flush with the inner side of the hydraulic cylinder support 5 on the lower section 11 of the sleeve. When the lower section 11 of the sleeve is fixed, the hydraulic cylinder extends and retracts to lift the hydraulic cylinder support 5 at the lower end of the upper section 1 of the sleeve.

[0029] In this invention, when the hydraulic cylinder on the lower section 11 of the sleeve lifts upward from the position of the hydraulic cylinder support 5, the reversing box 4 on the lower section 11 of the sleeve closes and is supported on the column, while the reversing box 4 on the upper section 1 of the sleeve is in the open state. At this time, the lower section 11 of the sleeve is fixed on the column, and then the two hydraulic cylinders on the lower section 11 of the sleeve hydraulically lift the upper section 1 of the sleeve above, causing the upper section 1 of the sleeve to lift the top platform on the column. After the lifting is completed, the lower section 11 of the sleeve and the reversing box 4 on the upper section 1 of the sleeve separate. In the open / closed state, the upper section 1 of the upper sleeve is fixed to the column via the reversing box 4. The hydraulic retraction of two cylinders pulls the lower section 11 of the lower sleeve upwards on the column. When the top platform descends, the lower section 11 of the lower sleeve loosens its fixation to the column. Under the hydraulic push of the cylinder, the lower section 11 of the sleeve descends. After the push is complete, the lower section 11 of the sleeve is fixed to the column via the reversing box 4. At this time, the upper reversing box 4 releases its support for the column and, under the hydraulic extension and retraction of the cylinder, pulls... The upper section 1 of the frame moves downwards to lower the top platform. The reversing box 4, which raises and lowers the top platform, is opened and closed by manually pulling the collar and handle on the outside of the round rod 43. When the collar is pulled upwards, the spring 41 drives the support rod 45 to rotate upwards, causing the rotating rod 44 to drive the protruding block 46 to rotate to a vertical position, which is the open / closed state. When the collar on the round rod 43 is fixed near the lower side, the support rod 45 is tilted upwards, supporting the rotating rod 44 and fixing it, thus keeping the rotating rod 44 in a vertical position. 4. The outer protruding block 46 is in a horizontal state. When the protruding block 46 is in a horizontal state, it will move closer to the inner column. Then, the protruding block 46 is horizontally supported on the crossbar of the column to support and fix the upper section 1 and the lower section 11 of the sleeve frame. This achieves the effect of fixing the upper section 1 and the lower section 11 of the sleeve frame to the column. The hydraulic lifting and lowering of the cylinder is achieved by fixing the upper section 1 and the lower section 11 of the sleeve frame, which prevents the use of steel cables for lifting and lowering, and avoids the problem of the cylinder pulling the steel cable with too much force and instability.

[0030] In this utility model, the upper section 1 and lower section 11 of the sleeve frame slide and translate on the outside of the column via guide wheels 2. During sliding, rollers 21 roll with the outside of the column. When the column tilts, the support block 23 elastically compresses the elastic strip 24. With the support of the elastic strip 24 and the fixing frame 22, the support block 23 elastically presses against the outside of the column. Under the elasticity of the elastic strip 24, the tilted column is elastically corrected. Furthermore, the elastic movement of the elastic strip 24 reduces the lifting resistance of the lower section 11 and upper section 1 of the sleeve frame.

[0031] The above description is only a preferred embodiment of the present utility model, and therefore cannot be used to limit the scope of the present utility model. All equivalent changes and modifications made in accordance with the scope of the present utility model patent and the contents of the specification should still fall within the scope of the present utility model.

Claims

1. A lifting mechanism for the top of a tower-building machine used in tower construction, characterized in that, The system includes an upper section (1) of the sleeve frame, a guide wheel (2), a pad (3), a reversing box (4), and a cylinder support (5). The pad (3) is located inside the guide wheel (2), and the guide wheel (2) is fixedly located inside the upper section (1) of the sleeve frame. The guide wheel (2) is symmetrically located on the right-angle side of the upper section (1) of the sleeve frame. There are four reversing boxes (4), which are respectively located on the outer sides of the upper section (1) of the sleeve frame. The cylinder support (5) is symmetrically located at the lower end of the upper section (1) of the sleeve frame. The upper section (1) of the sleeve frame is provided with a lower section (11) and a triangular frame (12) along the lower part of the middle column. The guide wheel (2) and the reversing box (4) are respectively symmetrically arranged in the lower section (11). The two cylinder supports (5) at the upper end of the lower section (11) are correspondingly arranged with the two cylinder supports (5) in the upper section (1). The triangular frame (12) is arranged on the left and right sides of the lower section (11). The outer end of the upper section (1) of the sleeve frame is provided with a connecting block (13). The cylinder is provided on the outside of the cylinder support (5). The reversing box (4) on the outside of the lower section (11) and the upper section (1) of the sleeve frame is supported on the inner column. The cylinder supports (5) on both sides of the lower section (11) of the sleeve frame are connected to the cylinder support (5) at the lower end of the upper section (1) of the sleeve frame through the telescopic rod of the cylinder, and the upper section (1) of the sleeve frame is pushed up by the hydraulic cylinder.

2. The tower construction machine top lifting mechanism for tower construction according to claim 1, characterized in that, The reversing box (4) is provided with a spring (41), a connecting plate (42), a round rod (43), a rotating rod (44), and a support rod (45). The rotating rod (44) is bearing-mounted inside the connecting plate (42). The support rod (45) is located in the middle of the rotating rod (44). The round rod (43) is provided with a handle with a collar. The springs (41) on both sides of the support rod (45) are connected to the collar of the round rod (43). When the collar moves upward in the round rod (43), it drives the support rod (45) connected to the spring (41) to rotate, and causes the rotating rod (44) to rotate clockwise in the connecting plate (42). The rotating rod (44) is provided with a protruding block (46) on its side. The rotating rod (44) drives the protruding block (46) to rotate from a horizontal state to a vertical state.

3. The tower construction machine top lifting mechanism for tower construction according to claim 2, characterized in that, The guide wheel (2) is provided with a roller (21), a fixed frame (22), a support block (23) and an elastic strip (24). The fixed frame (22) is fixed to the lower section (11) and the upper section (1) of the sleeve with screws. The outer end of the fixed frame (22) is provided with an elastic strip (24). The outer end of the elastic strip (24) is connected to the support block (23). The middle of the support block (23) is provided with a movable roller (21). The roller (21) rolls on the outside of the column. When the column is tilted, the roller (21) is pressed against the outside of the column under the support of the support block (23) through the elastic movement of the elastic strip (24).

4. The top lifting mechanism of a tower construction machine for tower construction according to claim 3, characterized in that, The elastic strips (24) are evenly spaced and connect the fixing frame (22) and the support block (23). When the support block (23) is subjected to pressure, it is buffered and limited by the elastic strips (24).

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