Tower crane with anti-tilting function

By installing an auxiliary anti-tilt mechanism and a self-compensating counterweight mechanism at the bottom of the tower crane, the potential safety hazard of the tower crane tipping over in severe weather is resolved, the stability and maintenance convenience of the tower crane are achieved, and construction safety is improved.

CN120646705AInactive Publication Date: 2025-09-16JIANGXI WUSONG MASCH CO LTD
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Patent Information

Application Number
CN202510985524.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-07-17
Publication Date
2025-09-16
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

Existing tower cranes are easily affected by wind in severe weather conditions, causing equipment damage and safety hazards. In particular, they may overturn in strong winds such as typhoons, threatening the safety of personnel and equipment at the construction site.

Method used

A tower crane with anti-tilt function is designed. By setting an auxiliary anti-tilt mechanism at the bottom of the tower body, using hydraulic push rods and support blocks to form support on the ground, combined with a self-compensating counterweight mechanism and a self-balancing hook mechanism, torque balance and support stability are achieved, enhancing the safety and maintenance convenience of the tower crane.

Benefits of technology

It improves the working safety and stability of tower cranes in adverse weather conditions, enhances the efficiency of installation and maintenance, reduces the risk of heavy objects falling, and ensures the safety of construction sites.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the technical field of tower cranes, in particular to a tower crane with an anti-tilting function. Comprising a tower body, the tower body comprises a plurality of standard sections which are sequentially connected in the vertical direction, and an auxiliary anti-inclination mechanism is arranged on the outer wall of the bottom of the tower body. The two sets of anti-inclination assemblies are controlled to move and be spliced to the outer wall of the bottom of the tower body, then the two sets of anti-inclination assemblies are connected and fixed, when the tower crane works, the multiple sets of hydraulic push rods are controlled to be unfolded towards the exteriors of the two sets of upper supporting bases, and then the output ends of the multiple sets of hydraulic push rods are controlled to stretch out; according to the tower crane, a plurality of groups of supporting blocks abut against the ground to support the tower body, the corresponding supporting force can be adjusted by adjusting the angle and the extension length of the hydraulic push rod according to the specific working environment, the working safety of the tower crane is improved, the auxiliary anti-tilting mechanism is modularly arranged, and the mounting efficiency is further improved.
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Description

Technical Field

[0001] The invention belongs to the technical field of tower cranes, and in particular relates to a tower crane with an anti-tilt function. Background Art

[0002] Tower cranes, as a commonly used lifting equipment, are widely used in construction sites, port terminals and other engineering construction projects. Their main function is to lift and transport heavy objects at the construction site, which has the advantages of improving work efficiency and reducing human resources.

[0003] A search revealed that, in the prior art, Chinese Patent Publication No. CN222961035U, Publication Date: 2025-06-10, discloses a tower crane with a loading and unloading structure, comprising a mounting base and a first tower body, the first tower body being mounted on the upper end of the mounting base; a transverse support rod disposed within the first tower body, a second annular groove being mounted at the lower end of the first tower body, a positioning bolt being passed through the second annular groove; a third annular groove being disposed at the upper end of the first tower body, a ring-shaped latch being passed through the third annular groove, the upper end of the annular latch being connected to a fourth annular groove, the inner end of the fourth annular groove being fixed to the second tower body, a nut being mounted at the lower end of the annular latch; and a third tower body being mounted on the upper end of the second tower body. This tower crane with a loading and unloading structure is structurally stable, easy to assemble and disassemble, and can be stacked and increased in height at will. The crane connection status can be set reasonably and simply at different positions within the device, maximizing the intelligence and safety of the crane.

[0004] However, the tower crane still has the following defects:

[0005] Existing tower cranes have certain risks during use, especially in severe weather conditions, such as strong winds such as typhoons. Tower cranes may be severely affected by winds, causing equipment damage or even overturning, which in turn threatens the safety of personnel and equipment at the construction site, thereby reducing the safety of tower crane operations. Summary of the Invention

[0006] In order to solve the above problems, the present invention provides a tower crane with an anti-tilt function, comprising a tower body, wherein the tower body comprises a plurality of groups of standard sections connected in sequence along a vertical direction, an auxiliary anti-tilt mechanism is provided on the outer wall of the bottom of the tower body; and a slewing mechanism is provided on the top of the tower body.

[0007] The slewing mechanism is provided with a balancing arm and a lifting arm; the balancing arm is provided with a self-compensating counterweight mechanism; the output end of the lifting arm is connected to a self-balancing hook mechanism;

[0008] The auxiliary anti-tilt mechanism includes two groups of rotationally symmetrical anti-tilt components; the anti-tilt components include an upper support seat and a lower support seat; a plurality of groups of rotatable hydraulic push rods are provided at equal intervals on the bottom of the upper support seat; the output end of each group of hydraulic push rods is transmission-connected to a group of support blocks for supporting on the ground;

[0009] A group of ball wheels for walking are movably passed through the bottom of each group of support blocks; a plurality of groups of storage grooves are evenly spaced at the bottom edge of the lower support seat; and each group of support blocks is movably passed through a corresponding group of storage grooves.

[0010] Furthermore, the standard section includes a connecting frame; a spliced ​​ladder is provided in the connecting frame; two groups of first guide grooves are symmetrically opened on each side wall of the connecting frame; and each group of the first guide grooves is provided with several groups of guide teeth at equal intervals in the vertical direction.

[0011] Furthermore, a guardrail is provided at the top edge of the upper support seat; two groups of guide columns are symmetrically provided on the top of the upper support seat; two groups of mounting grooves are symmetrically opened on the top of the lower support seat; a group of first motors are provided in each group of mounting grooves; a group of first screws are transmission-connected to the output end of each group of the first motors; each group of the first screws is threadedly connected to a corresponding group of guide columns.

[0012] Furthermore, a group of support grooves are provided on one side wall of the upper support seat and the lower support seat; a number of telescopic grooves are provided on the inner wall of each group of the support grooves; a group of telescopic plates are provided in each group of the telescopic grooves; a group of second motors are provided on the top of each group of the telescopic plates; a group of first gears are transmission-connected to the output end of each group of the second motors; each group of the first gears are movable through a corresponding group of first guide grooves and are meshed with the corresponding groups of guide teeth.

[0013] Furthermore, the self-compensating counterweight mechanism includes a counterweight shell; an adjustment top cover is provided on the top of the counterweight shell; a counterweight slot is opened on the top of the counterweight shell; a plurality of groups of heavy-loaded universal balls are distributed in a rectangular array on the bottom inner wall of the counterweight slot; a counterweight block is provided in the counterweight slot; the bottom of the counterweight block is movably fitted to the top of the plurality of groups of heavy-loaded universal balls.

[0014] Furthermore, an adjustment slot is provided at the bottom of the adjustment top cover; an adjustment block is provided in the adjustment slot; the bottom of the adjustment block is transmission-connected with an adjustment plate; the top of the counterweight block is movable through the bottom of the adjustment plate; a group of slide grooves are respectively provided on the inner walls on the four sides of the adjustment slot; the two opposite groups of slide grooves are symmetrically arranged and are not on the same horizontal plane as the other two groups of slide grooves.

[0015] Furthermore, each group of the slide grooves is slidably connected to a group of mounting plates; two groups of the mounting plates are provided with a group of third motors on one side wall close to the adjustment block; the output end of each group of the third motors is transmission-connected to a group of second screws; the other end of each group of the second screws is rotatably connected to the corresponding group of mounting plates; each group of the second screws is threadedly connected to the adjustment block.

[0016] Furthermore, the self-balancing hook mechanism includes a connecting seat; the cross-section of the connecting seat is U-shaped; a hook is provided at the bottom center of the connecting seat; two groups of limiting grooves are symmetrically provided on the inner walls on both sides of the connecting seat; a number of groups of limiting prisms are evenly spaced on the inner walls of each group of the limiting grooves; two groups of limiting rods are symmetrically provided on the inner walls on both sides of the connecting seat.

[0017] Furthermore, a connecting column is provided in the connecting seat; the connecting column is movable through two groups of limiting grooves; each group of limiting prisms is movable through the outer wall of the connecting column; an annular slide groove is provided on the top of the connecting column; several groups of sliders are slidably connected in the annular slide groove; a group of lifting rings is provided on the top of each group of sliders; a group of tension sensors is provided at the connection between each group of lifting rings and the corresponding group of sliders.

[0018] Furthermore, a second guide groove is provided on the inner wall of one side of the annular slide; the top cross-section of the second guide groove is annular, and an internal gear ring is provided inside; a group of second gears is provided in each group of the sliders; each group of the second gears is meshed and connected with the internal gear ring.

[0019] The beneficial effects of the present invention are:

[0020] 1. By controlling the movement of two sets of anti-tilt components and splicing them on the bottom outer wall of the tower body, and then connecting and fixing the two sets of anti-tilt components, when the tower crane is working, control several sets of hydraulic push rods to expand to the outside of the two sets of upper support seats, and then control the output ends of several sets of hydraulic push rods to extend, so that several sets of support blocks are in contact with the ground to support the tower body. The angle and extension length of the hydraulic push rods can be adjusted according to the specific working environment to adjust the corresponding support force, thereby improving the safety of the tower crane operation, and the modular setting of the auxiliary anti-tilt mechanism also improves the efficiency of the installation work.

[0021] 2. By controlling several groups of telescopic plates to move in corresponding telescopic slots, several groups of first gears can be respectively engaged with corresponding groups of guide teeth, and then several groups of second motors are controlled to work synchronously to drive the auxiliary anti-tilt mechanism to move upward along the tower body to facilitate maintenance work. When one group of standard sections is damaged, four groups of first motors are controlled to drive four groups of first screws to rotate. Under the threaded connection relationship between the first screws and the four groups of guide columns, the two groups of upper support seats can be raised and cross the corresponding standard sections with the two groups of lower support seats. The corresponding standard sections can be replaced, which improves the convenience and efficiency of tower crane maintenance work.

[0022] 3. The threaded connection of the adjustment block enables the adjustment block to drive the counterweight block to move horizontally on the top of several groups of heavy-loaded universal balls through the adjustment plate, so that the center of gravity of the self-compensating counterweight mechanism can be adjusted according to the error of the torque balance, so that the torque of the tower crane is always kept in a balanced state, thereby improving the working stability of the tower crane.

[0023] 4. By opening an annular chute at the top of the connecting column, several groups of sliders are slidably connected in the annular chute, and the top of each group of sliders is provided with a lifting ring for connecting with the steel cable. When one or more groups of steel cables break, the tension sensor between the lifting ring and the slider can monitor the tension on the remaining steel cables, and by controlling the corresponding groups of sliders to slide in the annular chute, the tension on the remaining steel cables can be restored to a balanced state, thereby reducing the damage to the tower body and the risk of heavy objects falling.

[0024] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or will be understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures pointed out in the description, claims and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0026] Figure 1 A schematic structural diagram of a tower crane according to an embodiment of the present invention is shown;

[0027] Figure 2 It shows a schematic structural diagram of a standard section according to an embodiment of the present invention;

[0028] Figure 3It shows a schematic structural diagram of an auxiliary anti-tilt mechanism according to an embodiment of the present invention;

[0029] Figure 4 shows an exploded schematic diagram of an auxiliary anti-tilt mechanism according to an embodiment of the present invention;

[0030] Figure 5 The embodiment of the present invention is shown Figure 4 An enlarged schematic diagram of point A;

[0031] Figure 6 It shows a schematic structural diagram of a self-compensating counterweight mechanism according to an embodiment of the present invention;

[0032] Figure 7 shows a cross-sectional schematic diagram of a self-compensating counterweight mechanism according to an embodiment of the present invention;

[0033] Figure 8 It shows a structural schematic diagram of a self-balancing hook mechanism according to an embodiment of the present invention;

[0034] Figure 9 A partial cross-sectional schematic diagram of a self-balancing hook mechanism according to an embodiment of the present invention is shown;

[0035] Figure 10 The embodiment of the present invention is shown Figure 9 An enlarged schematic diagram of point B.

[0036] In the figure: 1. Standard section; 2. Anti-tilt assembly; 3. Slewing mechanism; 4. Balance arm; 5. Self-compensating counterweight mechanism; 6. Lifting arm; 7. Self-balancing hook mechanism; 101. Connecting frame; 102. Spliced ​​ladder; 103. First guide groove; 104. Guide teeth; 201. Upper support seat; 202. Lower support seat; 203. Guardrail; 204. Guide column; 205. Hydraulic push rod; 206. Support block; 207. Storage slot; 208. Mounting slot; 209. First motor; 210. First screw; 211. Telescopic slot; 212. Telescopic plate; 213. Second motor; 214 , first gear; 501, counterweight housing; 502, adjusting top cover; 503, counterweight slot; 504, heavy-load universal ball; 505, counterweight block; 506, adjusting slot; 507, adjusting block; 508, adjusting plate; 509, slide; 510, mounting plate; 511, third motor; 512, second screw; 701, connecting seat; 702, hook; 703, limiting slot; 704, limiting prism; 705, limiting rod; 706, connecting column; 707, annular slide; 708, slider; 709, lifting ring; 710, second guide slot; 711, inner gear ring; 712, second gear. DETAILED DESCRIPTION

[0037] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0038] The embodiment of the present invention provides a tower crane with an anti-tilt function, including a tower body. Figure 1 As shown, the tower body includes several groups of standard sections 1 connected in sequence along the vertical direction, and an auxiliary anti-tilt mechanism is provided on the bottom outer wall of the tower body; a slewing mechanism 3 is provided on the top of the tower body; a balancing arm 4 and a lifting arm 6 are provided on the slewing mechanism 3; a self-compensating counterweight mechanism 5 is provided on the balancing arm 4; and a self-balancing hook mechanism 7 is transmission-connected to the output end of the lifting arm 6.

[0039] For example, Figure 2 As shown, the standard section 1 includes a connecting frame 101; a spliced ​​ladder 102 is provided in the connecting frame 101; two groups of first guide grooves 103 are symmetrically opened on each side wall of the connecting frame 101; and each group of the first guide grooves 103 is provided with a plurality of groups of guide teeth 104 at equal intervals in the vertical direction.

[0040] For example, Figure 3 、 Figure 4 and Figure 5As shown, the auxiliary anti-tilt mechanism includes two groups of rotationally symmetrical anti-tilt components 2; the anti-tilt component 2 includes an upper support seat 201 and a lower support seat 202; a guardrail 203 is provided at the top edge of the upper support seat 201; two groups of guide columns 204 are symmetrically provided on the top of the upper support seat 201; a number of hydraulic push rods 205 are evenly spaced at the bottom of the upper support seat 201; the output end of each group of hydraulic push rods 205 is transmission-connected with a group of support blocks 206; a group of ball wheels are movably passed through the bottom of each group of support blocks 206; a number of storage grooves 207 are evenly spaced at the bottom edge of the lower support seat 202; each group of support blocks 206 is movably passed through a corresponding group of storage grooves 207; two groups of mounting grooves 208 are symmetrically provided on the top of the lower support seat 202; each group of A group of first motors 209 are provided in the mounting grooves 208; a group of first screws 210 are transmission-connected to the output ends of each group of the first motors 209; each group of the first screws 210 are threadedly connected to a corresponding group of guide columns 204; a group of support grooves are provided on one side wall of the upper support seat 201 and the lower support seat 202; a number of telescopic grooves 211 are provided on the inner walls of each group of the support grooves; a group of telescopic plates 212 are provided in each group of the telescopic grooves 211; a group of second motors 213 are provided on the top of each group of the telescopic plates 212; a group of first gears 214 are transmission-connected to the output ends of each group of the second motors 213; each group of the first gears 214 are movable through a corresponding group of first guide grooves 103, and are meshed with the corresponding groups of guide teeth 104.

[0041] During the installation of the tower crane, several groups of standard sections 1 are connected in sequence to form the tower body, and then the slewing mechanism 3 is installed on the top of the tower body. The slewing mechanism 3 is provided with a lifting arm 6 for lifting, and the driving mechanism is installed on the balance arm 4. The output end is connected to the self-balancing hook mechanism 7 through the lifting arm 6. The balance arm 4 is also provided with a self-compensating counterweight mechanism 5, which is used to complete the lifting work by utilizing the moment balance principle when performing the lifting work. Subsequently, by controlling several groups of universal wheels to extend from the bottom of the support block 206, the two groups of anti-tilt components 2 can be moved and spliced ​​to the tower body. On the outer wall of the bottom, two groups of anti-tilt components 2 are then connected and fixed. When the tower crane is working, several groups of hydraulic push rods 205 are controlled to expand to the outside of the two groups of upper support seats 201, and then the output ends of several groups of hydraulic push rods 205 are controlled to extend, so that several groups of support blocks 206 are in contact with the ground to support the tower body. The angle and extension length of the hydraulic push rods 205 can be adjusted according to the specific working environment to adjust the corresponding support force, thereby improving the safety of the tower crane's operation, and the modular setting of the auxiliary anti-tilt mechanism also improves the efficiency of the installation work. When performing maintenance work on the tower crane, personnel can climb to the guardrail at the top of the two groups of upper support seats 201, and then control several groups of telescopic plates 212 to move in the corresponding telescopic slots 211, so that several groups of first gears 214 can be respectively engaged with the corresponding groups of guide teeth 104, and then control several groups of second motors 213 to synchronously drive several groups of first gears 214 to rotate, so that the auxiliary anti-tilt mechanism can move upward along the tower body to facilitate maintenance work, and when one group of standard sections 1 is damaged, control four groups of first motors 209 to drive four groups of first screws 210 to rotate, and under the threaded connection relationship between the first screws 210 and the four groups of guide columns 204, the two groups of upper support seats 201 can be raised and cross the corresponding standard sections 1 with the two groups of lower support seats 202. After several groups of first gears 214 are locked, the corresponding standard sections 1 can be replaced, which improves the convenience and efficiency of tower crane maintenance work.

[0042] For example, Figure 6 and Figure 7As shown, the self-compensating counterweight mechanism 5 includes a counterweight shell 501; an adjusting top cover 502 is provided on the top of the counterweight shell 501; a counterweight slot 503 is provided on the top of the counterweight shell 501; a plurality of groups of heavy-loaded universal balls 504 are distributed in a rectangular array on the bottom inner wall of the counterweight slot 503; a counterweight block 505 is provided in the counterweight slot 503; the bottom of the counterweight block 505 is movably fitted to the top of the plurality of groups of heavy-loaded universal balls 504; an adjusting slot 506 is provided at the bottom of the adjusting top cover 502; an adjusting block 507 is provided in the adjusting slot 506; the bottom of the adjusting block 507 is transmission-connected to an adjusting plate 508; the top of the counterweight block 505 is movably connected to the top of the plurality of groups of heavy-loaded universal balls 504 Passing through the bottom of the adjustment plate 508; a group of sliding grooves 509 are respectively opened on the inner walls of the four sides of the adjustment groove 506; the two opposite groups of sliding grooves 509 are symmetrically arranged, and are not on the same horizontal plane as the other two groups of sliding grooves 509; a group of mounting plates 510 are slidably connected in each group of the sliding grooves 509; a group of third motors 511 are respectively provided on the side wall of the two groups of mounting plates 510 close to the adjustment block 507; a group of second screws 512 are transmission-connected to the output end of each group of the third motors 511; the other end of each group of the second screws 512 is rotatably connected to the corresponding group of mounting plates 510; each group of the second screws 512 is threadedly connected to the adjustment block 507.

[0043] After long-term use, the counterweight mechanism of the existing tower crane will have errors in torque balance. The main reasons include structural deformation, foundation settlement and drift of safety devices. At this time, by controlling the two groups of third motors 511 to drive the two groups of second screws 512 to rotate, under the threaded connection relationship between the two groups of second screws 512 and the adjustment block 507, the adjustment block 507 can drive the counterweight block 505 to move horizontally on the top of several groups of heavy-loaded universal balls 504 through the adjustment plate 508, so that the center of gravity of the self-compensating counterweight mechanism 5 can be adjusted according to the error of torque balance, so that the torque of the tower crane is always kept in a balanced state, thereby improving the working stability of the tower crane.

[0044] For example, Figure 8 、 Figure 9 and Figure 10As shown, the self-balancing hook mechanism 7 includes a connecting seat 701; the cross-section of the connecting seat 701 is U-shaped; a hook 702 is provided at the bottom center of the connecting seat 701; two groups of limiting grooves 703 are symmetrically opened on the inner walls of both sides of the connecting seat 701; a plurality of groups of limiting prisms 704 are evenly spaced on the inner walls of each group of limiting grooves 703; two groups of limiting rods 705 are symmetrically provided on the inner walls of both sides of the connecting seat 701; a connecting column 706 is provided in the connecting seat 701; the connecting column 706 is movable through the two groups of limiting grooves 703; each group of limiting prisms 704 is movable through the outer wall of the connecting column 706 On top; an annular groove 707 is provided on the top of the connecting column 706; a number of groups of sliders 708 are slidably connected in the annular groove 707; a group of lifting rings 709 are provided on the top of each group of sliders 708; a group of tension sensors are provided at the connection between each group of lifting rings 709 and the corresponding group of sliders 708; a second guide groove 710 is provided on the inner wall of one side of the annular groove 707; the top-view cross-section of the second guide groove 710 is annular, and an internal gear ring 711 is provided inside; a group of second gears 712 are provided in each group of sliders 708; each group of second gears 712 are meshed and connected with the internal gear ring 711.

[0045] The hook mechanism used in existing tower cranes is usually connected by multiple groups of steel cables. However, when one or more groups of steel cables break, the hook mechanism will lose balance and shake violently, which will not only affect the tower body, but also cause the actual tension of the remaining steel cables to exceed the breaking limit and break continuously. The self-balancing hook mechanism 7 of the present application has an annular slide 707 at the top of the connecting column 706, and several groups of sliders 708 are slidably connected in the annular slide 707. The top of each group of sliders 708 is provided with a lifting ring 709 for connecting to the steel cable. When one or more groups of steel cables break, the tension sensor between the lifting ring 709 and the slider 708 can monitor the tension borne by the remaining steel cables, and by controlling the corresponding several groups of sliders 708 to slide in the annular slide 707, the tension borne by the remaining steel cables can be restored to a balanced state, thereby reducing the damage to the tower body and the risk of heavy objects falling.

[0046] By controlling the two groups of anti-tilt components 2 to move and splice them on the bottom outer wall of the tower body, and then connecting and fixing the two groups of anti-tilt components 2, when the tower crane is working, control several groups of hydraulic push rods 205 to expand to the outside of the two groups of upper support seats 201, and then control several groups of hydraulic push rods 205 The output ends are extended so that several groups of support blocks 206 are in contact with the ground to support the tower body. The angle and extension length of the hydraulic push rods 205 can be adjusted according to the specific working environment to adjust the corresponding support force, thereby improving the safety of the tower crane's operation, and the modular setting of the auxiliary anti-tilt mechanism also improves the efficiency of the installation work.

[0047] By controlling several groups of telescopic plates 212 to move in corresponding telescopic slots 211, several groups of first gears 214 can be respectively engaged with corresponding groups of guide teeth 104, and then several groups of second motors 213 are controlled to work synchronously to drive the auxiliary anti-tilt mechanism to move upward along the tower body for easy maintenance. When one group of standard sections 1 is damaged, four groups of first motors 209 are controlled to drive four groups of first screws 210 to rotate. Under the threaded connection relationship between the first screws 210 and the four groups of guide columns 204, the two groups of upper support seats 201 can be raised and cross the corresponding standard sections 1 with the two groups of lower support seats 202, so that the corresponding standard sections 1 can be replaced, thereby improving the convenience and efficiency of tower crane maintenance work.

[0048] By controlling the two groups of third motors 511 to drive the two groups of second screw rods 512 to rotate, under the threaded connection relationship between the two groups of second screw rods 512 and the adjustment block 507, the adjustment block 507 can drive the counterweight block 505 to move horizontally on the top of several groups of heavy-loaded universal balls 504 through the adjustment plate 508, so that the center of gravity of the self-compensating counterweight mechanism 5 can be adjusted according to the error of the torque balance, so that the torque of the tower crane is always kept in a balanced state, thereby improving the working stability of the tower crane.

[0049] By opening an annular groove 707 at the top of the connecting column 706, several groups of sliders 708 are slidably connected in the annular groove 707, and the top of each group of sliders 708 is provided with a lifting ring 709 for connecting to the steel cable. When one or more groups of steel cables break, the tension sensor between the lifting ring 709 and the slider 708 can monitor the tension borne by the remaining steel cables, and by controlling the corresponding groups of sliders 708 to slide in the annular groove 707, the tension borne by the remaining steel cables can be restored to a balanced state, thereby reducing the damage to the tower body and the risk of heavy objects falling.

[0050] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A tower crane with an anti-tilt function, comprising a tower body, characterized in that: The tower body comprises a plurality of groups of standard sections connected in sequence along the vertical direction, an auxiliary anti-tilt mechanism is provided on the outer wall of the bottom of the tower body; and a rotating mechanism is provided on the top of the tower body; The slewing mechanism is provided with a balancing arm and a lifting arm; the balancing arm is provided with a self-compensating counterweight mechanism; the output end of the lifting arm is connected to a self-balancing hook mechanism; The auxiliary anti-tilt mechanism includes two groups of rotationally symmetrical anti-tilt components; the anti-tilt components include an upper support seat and a lower support seat; a plurality of groups of rotatable hydraulic push rods are provided at equal intervals on the bottom of the upper support seat; the output end of each group of hydraulic push rods is transmission-connected to a group of support blocks for supporting on the ground; A group of ball wheels for walking are movably passed through the bottom of each group of support blocks; a plurality of groups of storage grooves are evenly spaced at the bottom edge of the lower support seat; and each group of support blocks is movably passed through a corresponding group of storage grooves.

2. The tower crane with anti-tilt function according to claim 1, characterized in that: The standard section includes a connecting frame; a spliced ​​ladder is provided in the connecting frame; two groups of first guide grooves are symmetrically opened on each side wall of the connecting frame; and a plurality of groups of guide teeth are provided in each group of the first guide grooves at equal intervals along the vertical direction.

3. The tower crane with anti-tilt function according to claim 2, characterized in that: A guardrail is provided at the top edge of the upper support seat; two groups of guide columns are symmetrically provided on the top of the upper support seat; two groups of mounting grooves are symmetrically opened on the top of the lower support seat; a group of first motors is provided in each group of the mounting grooves; a group of first screws are transmission-connected to the output end of each group of the first motors; each group of the first screws is threadedly connected to a corresponding group of guide columns.

4. The tower crane with anti-tilt function according to claim 3, characterized in that: A group of support grooves are provided on one side wall of the upper support seat and the lower support seat; a plurality of telescopic grooves are provided on the inner wall of each group of the support grooves; a group of telescopic plates are provided in each group of the telescopic grooves; a group of second motors are provided on the top of each group of the telescopic plates; a group of first gears are transmission-connected to the output end of each group of the second motors; each group of the first gears are movable through a corresponding group of first guide grooves and are meshed with the corresponding groups of guide teeth.

5. The tower crane with anti-tilt function according to claim 1, characterized in that: The self-compensating counterweight mechanism includes a counterweight shell; an adjustable top cover is provided on the top of the counterweight shell; a counterweight slot is opened on the top of the counterweight shell; a plurality of groups of heavy-loaded universal balls are distributed in a rectangular array on the bottom inner wall of the counterweight slot; a counterweight block is provided in the counterweight slot; the bottom of the counterweight block is movably fitted to the top of the plurality of groups of heavy-loaded universal balls.

6. The tower crane with anti-tilt function according to claim 5, characterized in that: An adjustment slot is provided at the bottom of the adjustment top cover; an adjustment block is provided in the adjustment slot; the bottom of the adjustment block is transmission-connected to an adjustment plate; the top of the counterweight block movably passes through the bottom of the adjustment plate; a group of slide slots are respectively provided on the inner walls on the four sides of the adjustment slot; the two opposite groups of slide slots are symmetrically arranged and are not on the same horizontal plane as the other two groups of slide slots.

7. The tower crane with anti-tilt function according to claim 6, characterized in that: A group of mounting plates are slidably connected in each group of the slide grooves; a group of third motors are provided on one side wall of two groups of the mounting plates close to the adjustment block; a group of second screws are transmission-connected to the output end of each group of the third motors; the other end of each group of the second screws is rotatably connected to the corresponding group of mounting plates; each group of the second screws is threadedly connected to the adjustment block.

8. The tower crane with anti-tilt function according to claim 1, characterized in that: The self-balancing hook mechanism includes a connecting seat; the cross-section of the connecting seat is U-shaped; a hook is provided at the bottom center of the connecting seat; two groups of limiting grooves are symmetrically provided on the inner walls on both sides of the connecting seat; a number of groups of limiting prisms are evenly spaced on the inner walls of each group of the limiting grooves; two groups of limiting rods are symmetrically provided on the inner walls on both sides of the connecting seat.

9. The tower crane with anti-tilt function according to claim 8, characterized in that: A connecting column is provided in the connecting seat; the connecting column is movable through two groups of limiting grooves; each group of limiting prisms 704 is movable through the outer wall of the connecting column 706; an annular slide groove is provided on the top of the connecting column 70; several groups of sliders are slidably connected in the annular slide groove; a group of lifting rings is provided on the top of each group of sliders; a group of tension sensors is provided at the connection between each group of lifting rings and the corresponding group of sliders.

10. The tower crane with anti-tilt function according to claim 9, characterized in that: A second guide groove is provided on the inner wall of one side of the annular slide; the second guide groove has an annular cross-section when viewed from above, and an internal gear ring is provided inside; a set of second gears is provided in each set of the sliders; Each set of the second gears is meshingly connected with the internal gear ring.

Citation Information

Patent Citations

  • Tower crane with loading and unloading structure

    CN222961035U