CN210736049U

CN210736049U - Lower support structure of tower crane

Info

Publication number: CN210736049U
Application number: CN201921451726.1U
Authority: CN
Inventors: 姚均飞
Original assignee: Xuzhou Mechanical And Electrical Technician College
Current assignee: Xuzhou Mechanical And Electrical Technician College
Priority date: 2019-09-03
Filing date: 2019-09-03
Publication date: 2020-06-12
Anticipated expiration: 2029-09-03

Abstract

The utility model discloses a tower crane's undersetting structure, including base body, L grip block and reinforced rib plate, base body is the rectangle structure, just all be provided with reinforced rib plate, four groups in base body week side reinforced rib plate has first support near a side welding of base body, reinforced rib plate keeps away from the one end welding of first support and has a fixed disk, four groups first support all is through bolt and base body screw thread fixed connection, the rectangle mounting groove has been seted up to base body top face, first spout has all been seted up to four group's inner wall bottoms in rectangle mounting groove, just rectangle mounting groove internal symmetry is provided with four group's L grip block, four groups L grip block inner wall is towards the inner wall in rectangle mounting groove, four groups the bottom plate and the first spout sliding connection of L grip block. The lower support structure of the tower crane can improve the clamping property of the L clamping plate and the stability of the tower crane, and can be popularized and used.

Description

Lower support structure of tower crane

Technical Field

The utility model belongs to the technical field of tower crane, concretely relates to tower crane's undersetting structure.

Background

Tower cranes, also known as tower cranes, originate in western europe. And the movable arm is arranged on the rotary crane at the upper part of the high-rise tower body. The working space is large, and the device is mainly used for vertical and horizontal conveying of materials and installation of building components in building construction. The device consists of a metal structure, a working mechanism and an electrical system. The metal structure comprises a tower body, a movable arm, a base and the like. The working mechanism has four parts of lifting, amplitude variation, rotation and walking. The electric system comprises a motor, a controller, a power distribution cabinet, a connecting circuit, a signal and lighting device and the like.

In terms of the technical development of the tower crane, although new products are diversified and improved in production efficiency, simplicity and convenience in operation, easiness in maintenance and reliability in operation, the technology of the tower crane is not fundamentally changed. The tower crane generally uses a special lower support structure to ensure the stability and safety of the crane, but the existing tower crane base still has the unstable problem and easily causes accidents.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a tower crane's undersetting structure to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a lower support structure of a tower crane comprises a base body, L-shaped clamping plates and reinforcing rib plates, wherein the base body is of a rectangular structure, the reinforcing rib plates are arranged on the periphery of the base body, a first support is welded on one side face, close to the base body, of the four groups of reinforcing rib plates, and a fixed disc is welded at one end, far away from the first support, of each reinforcing rib plate;

four groups first support is all through bolt and base body screw thread fixed connection, the rectangle mounting groove has been seted up to base body top face, first spout has all been seted up to four inner wall bottoms in rectangle mounting groove, just the symmetry is provided with four groups L grip blocks, four groups in the rectangle mounting groove the inner wall of L grip block inner wall towards the rectangle mounting groove, four groups the bottom plate and the first spout sliding connection of L grip block, wherein relative two sets of first internal thread holes have been seted up to the equal symmetry in L grip block bottom, and are two sets of first internal thread hole equal threaded connection has first fastening bolt, and is two sets of in addition two sets of second internal thread holes have been seted up to the equal symmetry in L grip block upper portion, and are two sets of equal threaded connection has the second fastening.

Preferably, the back surfaces of the four groups of L-shaped clamping plates are obliquely provided with supporting rods, second supports are welded at the ends, far away from the L-shaped clamping plates, of the supporting rods, and the second supports are fixed on the top end surface of the base body through bolts in a threaded mode.

Preferably, the base body is internally provided with four groups of first sliding grooves, and the inner wall of the L-shaped clamping plate is transversely welded with a positioning sliding block matched with the second sliding grooves.

Preferably, four groups of positioning columns are arranged on the bottom end face rectangular array in the rectangular mounting groove, and are matched with four groups of columns at the bottom end of the tower crane and installed in a penetrating mode through threads of bolts.

Preferably, rubber anti-slip pads are bonded on the opposite side faces of the four groups of L-shaped clamping plates, and the four groups of rubber anti-slip pads are in contact with the tower crane.

The utility model discloses a technological effect and advantage: according to the lower support structure of the tower crane, the rectangular mounting groove, the L clamping plate, the first sliding groove, the first internal thread hole and the first fastening bolt are arranged, the L clamping plate and the first sliding groove are matched and slide in the rectangular mounting groove to clamp the bottom end of the tower crane, and the first fastening bolt and the second fastening bolt are respectively in threaded connection with the first internal thread hole and the second internal thread hole correspondingly, so that the L clamping plate is fixed conveniently, and the clamping performance of the L clamping plate and the stability of the tower crane are improved; the support rod is arranged for supporting and fixing the L-shaped clamping plate through the support rod and the second support seat, so that the L-shaped clamping plate is prevented from inclining; by arranging the second sliding chute and the positioning sliding block, the positioning sliding block slides in the second sliding chute, so that the L-shaped clamping plate can move in the first sliding chute conveniently, and the L-shaped clamping plate is positioned; the lower support structure of the tower crane can improve the clamping property of the L clamping plate and the stability of the tower crane, and can be popularized and used.

Drawings

FIG. 1 is a schematic view of the present invention;

FIG. 2 is a schematic view of the base body structure of the present invention;

fig. 3 is a cross-sectional view of the base body of the present invention.

In the figure: the base comprises a base body 1, a clamping plate 2L, a reinforcing rib plate 3, a fixed disc 4, a supporting rod 5, a second support 6, a rectangular mounting groove 7, a first internal thread hole 8, a first fastening bolt 9, a second internal thread hole 10, a second fastening bolt 11, a rubber anti-skid pad 12, a first sliding groove 13, a second sliding groove 14, a positioning sliding block 15, a positioning column 16 and a first support 17.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model provides a lower support structure of a tower crane as shown in figures 1-3, which comprises a base body 1, L-shaped clamping plates 2 and reinforcing rib plates 3, wherein the base body 1 is of a rectangular structure, the reinforcing rib plates 3 are arranged on the periphery of the base body 1, a first support 17 is welded on one side surface of the reinforcing rib plates 3 close to the base body 1, and a fixed disk 4 is welded on one end of the reinforcing rib plates 3 far away from the first support 17;

four groups of the first supports 17 are fixedly connected with the base body 1 through bolts in a threaded manner, the top end surface of the base body 1 is provided with a rectangular mounting groove 7, the bottoms of four groups of inner walls of the rectangular mounting groove 7 are provided with first sliding grooves 13, four groups of L clamping plates 2 are symmetrically arranged in the rectangular mounting groove 7, the inner walls of the four groups of the L clamping plates 2 face the inner walls of the rectangular mounting groove 7, the bottom plate pieces of the four groups of the L clamping plates 2 are connected with the first sliding grooves 13 in a sliding manner, wherein two groups of first internal thread holes 8 are symmetrically arranged at the bottoms of two groups of the L clamping plates 2, first fastening bolts 9 are respectively connected in the two groups of the first internal thread holes 8 in a threaded manner, two groups of second internal thread holes 10 are respectively arranged at the upper parts of the other two groups of the L clamping plates 2 in a symmetrical manner, second fastening bolts 11 are respectively connected in the two groups of the second internal thread holes, the bottom end of the tower crane is clamped, and the first fastening bolt 9 and the second fastening bolt 11 are in threaded connection with the first internal threaded hole 8 and the second internal threaded hole 10 correspondingly respectively, so that the L-shaped clamping plate 2 is fixed conveniently.

Specifically, four groups 2 backs of L grip block are all inclined and are provided with bracing piece 5, four groups the bracing piece 5 is kept away from the one end of L grip block 2 and is all welded second support 6, four groups second support 6 all through bolt thread tightening at 1 top of base body face, bracing piece 5 supports L grip block 2 and fixes, prevents that L grip block 2 from inclining.

Specifically, base body 1 is inside and be located four first spouts 13 of group and has all seted up second spout 14 directly over, four groups 2 inner walls of L grip block all transverse weld have with second spout 14 cooperation location slider 15 that uses, location slider 15 slides in second spout 14, and the L grip block 2 of being convenient for removes in first spout 13, plays the effect of location to L grip block 2.

Specifically, four groups of positioning columns 16 are arranged in the rectangular array on the inner bottom end face of the rectangular mounting groove 7, the four groups of positioning columns 16 are all installed in a matched mode with four groups of columns at the bottom end of the tower crane and penetrate through the bolts and threads, and the positioning columns 16 penetrate through the four groups of columns at the bottom end of the tower crane.

Specifically, rubber anti-slip pads 12 are bonded to opposite side faces of the four groups of L-shaped clamping plates 2, and the four groups of rubber anti-slip pads 12 are in contact with the tower crane, so that the friction force between the tower crane and the L-shaped clamping plates 2 is increased.

Specifically, this tower crane's undersetting structure, L grip block 2 and first spout 13 slide in the cooperation of rectangle mounting groove 7, carry out the centre gripping to tower crane bottom, first fastening bolt 9 and second fastening bolt 11 correspond respectively with first internal thread hole 8 and second internal thread hole 10 threaded connection, bracing piece 5 supports L grip block 2 fixedly, location slider 15 slides in second spout 14, reference column 16 runs through to inside four groups of cylinders in tower crane bottom. The lower support structure of the tower crane can improve the clamping property of the L clamping plate and the stability of the tower crane, and can be popularized and used.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides a tower crane's undersetting structure, includes base body (1), L grip block (2) and reinforcing floor (3), its characterized in that: the base body (1) is of a rectangular structure, reinforcing rib plates (3) are arranged on the periphery of the base body (1), a first support (17) is welded on one side face, close to the base body (1), of the four groups of reinforcing rib plates (3), and a fixed disc (4) is welded on one end, far away from the first support (17), of each reinforcing rib plate (3);

the four groups of first supports (17) are fixedly connected with the base body (1) through bolts in a threaded manner, a rectangular mounting groove (7) is formed in the top end face of the base body (1), first sliding grooves (13) are formed in the bottoms of the four groups of inner walls of the rectangular mounting groove (7), four groups of L clamping plates (2) are symmetrically arranged in the rectangular mounting groove (7), the inner walls of the four groups of L clamping plates (2) face the inner wall of the rectangular mounting groove (7), the bottom plates of the four groups of L clamping plates (2) are slidably connected with the first sliding grooves (13), two groups of first internal thread holes (8) are symmetrically formed in the bottoms of the two groups of L clamping plates (2), first fastening bolts (9) are connected in the two groups of first internal thread holes (8) in a threaded manner, two groups of second internal thread holes (10) are symmetrically formed in the upper portions of the other two groups of L clamping plates, and a second fastening bolt (11) is in threaded connection with the two groups of second internal threaded holes (10).

2. The lower support structure of a tower crane according to claim 1, wherein: the back of the L clamping plate (2) is obliquely provided with support rods (5), one ends, far away from the L clamping plate (2), of the support rods (5) are welded with second supports (6), and the second supports (6) are fixed to the top end face of the base body (1) through bolt threads.

3. The lower support structure of a tower crane according to claim 1, wherein: second chutes (14) are formed in the base body (1) and located right above the four groups of first chutes (13), and positioning sliding blocks (15) matched with the second chutes (14) are transversely welded on the inner wall of the L clamping plate (2).

4. The lower support structure of a tower crane according to claim 1, wherein: four groups of positioning columns (16) are arranged on the rectangular array of the inner bottom end face of the rectangular mounting groove (7), and the four groups of positioning columns (16) are matched with four groups of columns at the bottom end of the tower crane and are installed in a penetrating mode through bolt threads.

5. The lower support structure of a tower crane according to claim 1, wherein: rubber anti-skid pads (12) are bonded on the opposite side faces of the four groups of L-shaped clamping plates (2), and the four groups of rubber anti-skid pads (12) are in contact with the tower crane.