Tower crane ground fixing base

Abstract

The utility model discloses a tower crane ground fixing base which comprises a base, a connecting frame is fixedly installed on the upper end face of the base, a rotating groove is formed in the bottom wall of the base, a motor is fixedly installed on the upper end face of the base, an output shaft of the motor extends into the rotating groove, and a plurality of extending frames are fixedly installed on the outer wall of the base. And a screw rod is rotationally mounted in each extending frame, each screw rod rotationally penetrates into the corresponding rotating groove, and a second bevel gear is fixedly mounted on the outer wall of each screw rod. Through the arrangement of the first bevel gear, the second bevel gear, the screw rod, the movable sleeve, the connecting rods and other assemblies, under the meshing rotation of the first bevel gear and the second bevel gear, the screw rod is matched with the limiting rod to drive the movable sleeve to move, and the movable sleeve can drive the fixing plate to move and extend through the matching of the connecting rods and the connecting block; therefore, the supporting area of the base can be adjusted, and the using stability of the tower crane is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tower crane equipment, in particular to a ground fixed base of a tower crane. Background Art

[0002] Tower crane, also known as tower crane, is a common construction equipment on construction sites. It has a large working range and is widely used. It can be used in the construction of high-rise buildings. The tower crane base is used to fix the tower crane as a whole. Its size is generally determined by the model of the tower crane. The widespread use of the tower crane base can effectively improve the working efficiency of construction operations.

[0003] In the prior art, since the tower crane base is mostly determined according to the size of the tower crane bottom and the tower crane base needs better stability, the traditional tower crane base does not have the function of flexible adjustment, resulting in low stability during use, which will increase the safety hazards of construction. Therefore, it is necessary to redesign a tower crane ground fixed base to address the above problems. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a ground fixed base for a tower crane.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A ground fixed base for a tower crane comprises a base, an upper end surface of the base is fixedly installed with a connecting frame, a bottom wall of the base is provided with a rotating groove, an upper end surface of the base is fixedly installed with a motor, the motor output shaft extends into the rotating groove, a plurality of extension frames are fixedly installed on the outer wall of the base, a screw is rotatably installed inside each of the extension frames, each of the screws rotates and passes through the rotating groove, a second bevel gear is fixedly installed on the outer wall of each of the screws, each of the second bevel gears is vertically engaged with the first bevel gear, a movable sleeve is threadedly installed on the outer wall of each of the screws through a limiting mechanism, and the outer wall of each of the movable sleeves is fixedly connected with a connecting block through a connecting mechanism, an adjusting bolt is rotatably installed on the upper end surface of the connecting block, and the end of each of the adjusting bolts is rotatably connected with a fixing plate through a connecting mechanism, and a reinforcing rod is fixedly installed between the outer walls of two adjacent extension frames.

[0007] Preferably, the limiting mechanism comprises a limiting rod fixedly installed inside the extension frame, and the limiting rod slides through the moving sleeve.

[0008] Preferably, the connecting mechanism comprises a plurality of connecting rods fixedly mounted on the outer wall of the moving sleeve, and an end of each connecting rod is fixedly connected to the outer wall of the connecting block.

[0009] Preferably, the connection mechanism comprises a connection sleeve fixedly mounted on the end of the adjusting bolt, and the bottom wall of the connection sleeve is rotatably connected to the upper end surface of the fixing plate.

[0010] Preferably, a plurality of support plates are fixedly mounted on the upper end surface of the base, and an end of each of the support plates is fixedly connected to the outer wall of the connecting frame.

[0011] Preferably, a vibration-damping pad is fixedly mounted on the bottom wall of each fixing plate, and a plurality of fixing holes are provided on each fixing plate and each bottom wall of the vibration-damping pad.

[0012] Beneficial effects of the utility model:

[0013] 1. By setting up components such as the first bevel gear, the second bevel gear, the screw, the movable sleeve and the connecting rod, under the meshing rotation of the first bevel gear and the second bevel gear, the screw drives the movable sleeve to move by cooperating with the limit rod, and the movable sleeve can drive the fixed plate to move and extend through the cooperation of multiple connecting rods and connecting blocks, thereby adjusting the supporting area of ​​the base and increasing the stability of the tower crane when in use.

[0014] 2. By setting up components such as adjusting bolts, vibration-damping pads and reinforcing rods, the adjusting bolts are rotated to drive the fixed plates to move up and down, so that multiple fixed plates can adapt to uneven ground. The vibration-damping pads can buffer the vibrations transmitted from the ground, thereby ensuring the tightness of the connection between the fixed plates and the ground. Each extension frame is fixedly connected by a reinforcing rod, thereby increasing the strength of the extension frame in the support and avoiding its deformation and damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural schematic diagram of a ground fixed base of a tower crane proposed by the utility model;

[0016] Figure 2 for Figure 1 Schematic diagram of the vertical section structure;

[0017] Figure 3 This is a schematic diagram of the top view of the structure of a ground fixed base of a tower crane proposed by the utility model;

[0018] Figure 4 for Figure 1 A schematic diagram of the structure enlargement at point A;

[0019] Figure 5 for Figure 2 A schematic diagram of the structure at B in FIG.

[0020] Figure 6 for Figure 2 Schematic diagram of the enlarged structure at position C in FIG.

[0021] In the figure: 1 base, 2 connecting frame, 3 support plate, 4 motor, 5 first bevel gear, 6 extension frame, 7 screw rod, 8 second bevel gear, 9 limit rod, 10 movable sleeve, 11 connecting rod, 12 connecting block, 13 adjusting bolt, 14 connecting sleeve, 15 fixing plate, 16 vibration damping pad, 17 reinforcing rod. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] Reference Figure 1-6 A ground fixed base of a tower crane comprises a base 1, a connecting frame 2 is fixedly installed on the upper end surface of the base 1, a plurality of supporting plates 3 are fixedly installed on the upper end surface of the base 1, and the ends of each supporting plate 3 are fixedly connected to the outer wall of the connecting frame 2, a rotating groove is opened on the bottom wall of the base 1, a motor 4 is fixedly installed on the upper end surface of the base 1, and the output shaft of the motor 4 extends into the rotating groove, a plurality of extension frames 6 are fixedly installed on the outer wall of the base 1, a screw rod 7 is rotatably installed inside each extension frame 6, and each screw rod 7 rotates and penetrates into the rotating groove, a second bevel gear 8 is fixedly installed on the outer wall of each screw rod 7, and each second bevel gear 8 is vertically engaged with the first bevel gear 5, and a moving sleeve 10 is threadedly installed on the outer wall of each screw rod 7 through a limiting mechanism, and the limiting mechanism comprises a limiting rod 9 fixedly installed inside the extension frame 6, and the limiting rod 9 slides through the moving sleeve 10, and the limiting rod 9 can limit the moving sleeve 10 so that the moving sleeve 10 can only move axially along the outer wall of the screw rod 7.

[0024] The outer wall of each movable sleeve 10 is fixedly connected to a connecting block 12 through a connecting mechanism. The connecting mechanism includes a plurality of connecting rods 11 fixedly installed on the outer wall of the movable sleeve 10. The end of each connecting rod 11 is fixedly connected to the outer wall of the connecting block 12. An adjusting bolt 13 is rotatably installed on the upper end surface of the connecting block 12. The end of each adjusting bolt 13 is rotatably connected to a fixing plate 15 through a connecting mechanism. The connecting mechanism includes a connecting sleeve 14 fixedly installed on the end of the adjusting bolt 13. The bottom wall of the connecting sleeve 14 is rotatably connected to the upper end surface of the fixing plate 15. A reinforcing rod 17 is fixedly installed between the outer walls of two adjacent extension frames 6. Each support plate 3 and each reinforcing rod 17 are made of alloy steel. Alloy steel is a steel material containing multiple metal elements. It can be manufactured according to actual needs and has the characteristics of high strength, toughness and corrosion resistance. Alloy steel has excellent hardness and is not easy to deform. A vibration damping pad 16 is fixedly installed on the bottom wall of each fixing plate 15. A plurality of fixing holes are provided on the bottom wall of each fixing plate 15 and each vibration damping pad 16.

[0025] When the utility model is used, the motor 4 drives the first bevel gear 5 to rotate. When the first bevel gear 5 rotates, it can engage with the second bevel gear 8 to drive the screw 7 to rotate. The screw 7 drives the movable sleeve 10 to move by cooperating with the limit rod 9. At this time, the movable sleeve 10 can drive the connecting block 12 to move by cooperating with multiple connecting rods 11, thereby driving the fixed plate 15 to move and extend by cooperating with the connecting block 12. By moving the multiple fixed plates 15, the supporting area of ​​the base 1 can be adjusted, thereby increasing the stability of the tower crane when in use.

[0026] When the movement of the fixing plate 15 is completed, the adjusting bolt 13 can be rotated first to drive the fixing plate 15 to move up and down, thereby allowing the multiple fixing plates 15 to adapt to the uneven ground, and then the fixing plate 15 can be connected and fixed to the ground through the cooperation of the fixing bolts and the fixing holes. When the fixing bolts are tightened, the fixing plate 15 can squeeze the vibration-damping pad 16, and the vibration-damping pad 16 can buffer the vibration transmitted from the ground, thereby ensuring the tightness of the connection between the fixing plate 15 and the ground. When the tower crane is connected to the connecting frame 2, the supporting strength of the connecting frame 2 can be increased by cooperating with multiple supporting plates 3 to avoid its bending, and when the tower crane is installed, each extension frame 6 is fixedly connected by a reinforcing rod 17, thereby increasing the strength of the extension frame 6 in the support to avoid its deformation and damage.

[0027] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A ground fixed base for a tower crane, characterized by: The invention comprises a base (1), a connecting frame (2) is fixedly mounted on the upper end surface of the base (1), a rotating groove is formed on the bottom wall of the base (1), a motor (4) is fixedly mounted on the upper end surface of the base (1), an output shaft of the motor (4) extends into the rotating groove, a plurality of extension frames (6) are fixedly mounted on the outer wall of the base (1), a screw rod (7) is rotatably mounted inside each of the extension frames (6), each of the screw rods (7) is rotatably penetrated into the rotating groove, and a second bevel gear (8) is fixedly mounted on the outer wall of each of the screw rods (7). Each of the second bevel gears (8) is vertically engaged with the first bevel gear (5); a movable sleeve (10) is threadedly mounted on the outer wall of each screw rod (7) via a limiting mechanism; the outer wall of each movable sleeve (10) is fixedly connected to a connecting block (12) via a connecting mechanism; an adjusting bolt (13) is rotatably mounted on the upper end surface of the connecting block (12); the end of each adjusting bolt (13) is rotatably connected to a fixing plate (15) via a connecting mechanism; and a reinforcing rod (17) is fixedly mounted between the outer walls of two adjacent extension frames (6).

2. A tower crane ground fixed base according to claim 1, characterized in that: The limiting mechanism comprises a limiting rod (9) fixedly mounted inside the extension frame (6), and the limiting rod (9) slides through the moving sleeve (10).

3. A tower crane ground fixed base according to claim 2, characterized in that: The connection mechanism comprises a plurality of connection rods (11) fixedly mounted on the outer wall of the moving sleeve (10), and an end of each of the connection rods (11) is fixedly connected to the outer wall of the connection block (12).

4. A tower crane ground fixed base according to claim 3, characterized in that: The connection mechanism comprises a connection sleeve (14) fixedly mounted on the end of the adjusting bolt (13), and the bottom wall of the connection sleeve (14) is rotatably connected to the upper end surface of the fixing plate (15).

5. A tower crane ground fixed base according to claim 4, characterized in that: A plurality of support plates (3) are fixedly mounted on the upper end surface of the base (1), and an end of each support plate (3) is fixedly connected to the outer wall of the connection frame (2).

6. A tower crane ground fixed base according to claim 5, characterized in that: A vibration-damping pad (16) is fixedly mounted on the bottom wall of each of the fixing plates (15), and a plurality of fixing holes are provided on the bottom wall of each of the fixing plates (15) and each of the vibration-damping pads (16).

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