CN219708945U

CN219708945U - Cantilever crane

Info

Publication number: CN219708945U
Application number: CN202321185471.5U
Authority: CN
Inventors: 王建文; 孙建伟; 周咏全; 马海娟; 钱海龙
Original assignee: Jiangyin Kaili Lifting Motor Co ltd
Current assignee: Jiangyin Kaili Lifting Motor Co ltd
Priority date: 2023-05-17
Filing date: 2023-05-17
Publication date: 2023-09-19
Anticipated expiration: 2033-05-17

Abstract

The utility model relates to a cantilever crane, which comprises a base, wherein the upper surface of the base is fixedly connected with a rotary driving mechanism, the output end of the rotary driving mechanism is fixedly connected with a rotary arm, the surface of the rotary arm is fixedly connected with a first bearing, the surface of the first bearing and the upper surface of the base are fixedly connected with a fixed support, the upper surface of the rotary arm is fixedly connected with a stand column, and the right side of the stand column is fixedly connected with a rotary support. According to the utility model, through the cooperation of the upright post, the rotating bracket, the supporting cantilever, the first hollow block, the traction steel rope, the second hollow block, the first hydraulic push rod and the supporting bracket, a user can control the supporting cantilever to rotate around the rotating bracket, so that when the user transports the cantilever crane, the space occupied by the cantilever crane is reduced by reducing the included angle between the supporting cantilever and the upright post, and the user is convenient to transport the cantilever crane.

Description

Cantilever crane

Technical Field

The utility model relates to the technical field of cranes, in particular to a cantilever crane.

Background

The cantilever crane is small and medium-sized hoisting equipment developed in recent years, has the characteristics of unique structure, safety and reliability, high efficiency, energy conservation, time and labor conservation, flexibility and the like, is free to operate in three dimensions, and has more superiority than other conventional hoisting equipment in occasions of section distance and intensive transportation, so that the cantilever crane is widely applied to different places of various industries. The cantilever crane consists of a stand column, a rotary arm, a rotary driving device, a cantilever and an electric hoist, wherein the lower end of the cantilever crane is fixed on concrete through foundation bolts, then the rotary arm and the rotary driving device are used for controlling the cantilever to horizontally rotate, and the electric hoist is used for hoisting heavy objects. Such as a jib crane as disclosed in the publication CN 212475884U. However, the space occupied by the cantilever crane is large during transportation, so that a user is troublesome during transportation of the cantilever crane.

Therefore, there is a need for a cantilever crane that reduces the space taken up during transportation, and that facilitates the transportation of the cantilever crane by the user.

Disclosure of Invention

The utility model aims to overcome the defects and provide a cantilever crane which can reduce occupied space during transportation.

The purpose of the utility model is realized in the following way:

the utility model provides a cantilever crane, includes the base, the upper surface fixedly connected with gyration actuating mechanism of base, gyration actuating mechanism's output fixedly connected with gyration arm, the surface fixedly connected with first bearing of gyration arm, the equal fixedly connected with fixed bolster of the upper surface of first bearing and base, the upper surface fixedly connected with stand of gyration arm, the right side fixedly connected with runing rest of stand, the right side fixedly connected with support cantilever of runing rest, the bottom fixedly connected with electric block of support cantilever, the upper surface fixedly connected with first hollow piece of support cantilever, the inner wall fixedly connected with traction cable wire of first hollow piece, the surface fixedly connected with second hollow piece of traction cable wire, the bottom of second hollow piece and the left side of stand all fixedly connected with first hydraulic push rod, the upper surface fixedly connected with support of stand, the inner wall and the surface contact of traction cable wire of support bracket.

Preferably, the rotating bracket comprises a U-shaped plate, the right side of the upright post is fixedly connected with the left side of the U-shaped plate, round holes are formed in the front side and the rear side of the U-shaped plate, a second bearing is fixedly connected to the inner wall of the round hole, a first cylinder is fixedly connected to the inner wall of the second bearing, and a connecting block is fixedly connected to the surface of the first cylinder and the left side of the supporting cantilever.

Preferably, the support bracket comprises a transverse plate, the bottom of transverse plate and the upper surface fixed connection of stand, the equal fixedly connected with rectangle section of thick bamboo of upper surface of transverse plate, the equal fixedly connected with second cylinder of front and back both sides of rectangle section of thick bamboo inner wall, the fixed surface of second cylinder is connected with the third bearing, the equal fixedly connected with third cylinder of front and back both sides of rectangle section of thick bamboo inner wall, the fixed surface of third cylinder is connected with the fourth bearing, the inner wall of rectangle section of thick bamboo, the bottom of fourth bearing and the upper surface of third bearing all with the surface contact of traction cable.

Preferably, the number of the rectangular cylinders is two, and the two rectangular cylinders are inverted splayed.

Preferably, the bottom fixedly connected with dog of support cantilever, the right side fixedly connected with second hydraulic push rod of stand, the right-hand member of second hydraulic push rod and the left side contact of dog.

Preferably, the center of the rotary arm is on the same vertical line with the center of the upright post.

Compared with the prior art, the utility model has the beneficial effects that:

according to the cantilever crane, through the cooperation of the upright post, the rotary support, the supporting cantilever, the first hollow block, the traction steel rope, the second hollow block, the first hydraulic push rod and the supporting support, a user can control the supporting cantilever to rotate around the rotary support, so that when the user transports the cantilever crane, the space occupied by the cantilever crane is reduced by reducing the included angle between the supporting cantilever and the upright post, and the user is convenient to transport the cantilever crane;

according to the cantilever crane, the stop block and the second hydraulic push rod are arranged, when the second hydraulic push rod is in contact with the stop block, the second hydraulic push rod is matched with the stop block, so that the tension born by the traction steel cable is reduced, the traction steel cable is not easy to break, and meanwhile, when the length of the second hydraulic push rod is smaller than the distance between the upright post and the connecting block, the second hydraulic push rod cannot influence the rotation of the supporting cantilever.

Drawings

Fig. 1 is a schematic structural view of a jib crane according to the present utility model.

Fig. 2 is an elevation view of a jib crane according to the utility model.

Fig. 3 is an elevation view of a swivel bracket in a jib crane according to the utility model.

Fig. 4 is a cross-sectional view A-A of fig. 3.

Fig. 5 is a schematic view of a support bracket in a jib crane according to the utility model.

Wherein: the device comprises a base 1, a rotary driving mechanism 2, a rotary arm 3, a first bearing 4, a fixed support 5, a column 6, a rotary support 7, a U-shaped plate 71, a round hole 72, a second bearing 73, a first cylinder 74, a connecting block 75, a supporting cantilever 8, an electric hoist 9, a first hollow block 10, a traction cable 11, a second hollow block 12, a first hydraulic push rod 13, a supporting support 14, a transverse plate 141, a rectangular cylinder 142, a second cylinder 143, a third bearing 144, a third cylinder 145, a fourth bearing 146, a stop block 15 and a second hydraulic push rod 16.

Description of the embodiments

Referring to fig. 1 to 5, the cantilever crane according to the present utility model comprises a base 1, the upper surface of the base 1 is fixedly connected with a rotary driving mechanism 2, the output end of the rotary driving mechanism 2 is fixedly connected with a rotary arm 3, the surface of the rotary arm 3 is fixedly connected with a first bearing 4, the surface of the first bearing 4 and the upper surface of the base 1 are both fixedly connected with a fixed bracket 5, the rotary arm 3 is limited by the fixed bracket 5 and the first bearing 4, the upper surface of the rotary arm 3 is fixedly connected with a stand column 6, the stand column 6 is controlled to rotate by the rotary arm 3 and the rotary driving mechanism 2, the right side of the stand column 6 is fixedly connected with a rotary bracket 7, the right side of the rotary bracket 7 is fixedly connected with a supporting cantilever 8, the bottom of the supporting cantilever 8 is fixedly connected with an electric hoist 9, an object is lifted by the electric hoist 9, the upper surface of the supporting cantilever 8 is fixedly connected with a first hollow block 10, the inner wall of the first hollow block 10 is fixedly connected with a traction steel cable 11, the surface of the traction steel cable 11 is fixedly connected with a second hollow block 12, the bottom of the second hollow block 12 and the left side of the stand column 6 is fixedly connected with a push rod 13, and the surface of the upper support 14 is fixedly connected with the inner wall 14 of the traction steel cable 14.

Further, the rotating bracket 7 includes a U-shaped plate 71, the right side of the upright post 6 is fixedly connected with the left side of the U-shaped plate 71, round holes 72 are formed in the front side and the rear side of the U-shaped plate 71, the inner wall of the round hole 72 is fixedly connected with a second bearing 73, the inner wall of the second bearing 73 is fixedly connected with a first cylinder 74, the surface of the first cylinder 74 and the left side of the supporting cantilever 8 are fixedly connected with a connecting block 75, and the supporting cantilever 8 can rotate around the first cylinder 74 through the cooperation of the connecting block 75 and the second bearing 73.

Further, the support bracket 14 includes a cross plate 141, the bottom of the cross plate 141 is fixedly connected with the upper surface of the upright post 6, the upper surface of the cross plate 141 is fixedly connected with a rectangular cylinder 142, the front side and the rear side of the inner wall of the rectangular cylinder 142 are fixedly connected with a second cylinder 143, the surface of the second cylinder 143 is fixedly connected with a third bearing 144, the front side and the rear side of the inner wall of the rectangular cylinder 142 are fixedly connected with a third cylinder 145, the surface of the third cylinder 145 is fixedly connected with a fourth bearing 146, the inner wall of the rectangular cylinder 142, the bottom of the fourth bearing 146 and the upper surface of the third bearing 144 are in contact with the surface of the traction steel cable 11, the traction steel cable 11 is clamped in the rectangular cylinder 142 through the fourth bearing 146 and the third bearing 144, and the traction steel cable 11 is supported through the third bearing 144.

Further, the number of the rectangular cylinders 142 is two, and the two rectangular cylinders 142 are inverted splayed.

Further, the bottom fixedly connected with dog 15 of support cantilever 8, the right side fixedly connected with second hydraulic push rod 16 of stand 6, the right-hand member and the left side contact of dog 15 of second hydraulic push rod 16, through setting up dog 15 and second hydraulic push rod 16, wherein, when second hydraulic push rod 16 and dog 15 contact, through the cooperation of second hydraulic push rod 16 and dog 15, make the pulling force that traction cable 11 receives reduce, and then make traction cable 11 be difficult to take place the fracture, simultaneously, when the length of second hydraulic push rod 16 is less than the stand 6 and the distance between the connecting block 75, second hydraulic push rod 16 can not cause the influence to the rotation of support cantilever 8.

Further, the center of the rotary arm 3 is on the same vertical line with the center of the upright post 6.

The working principle of the cantilever crane of the utility model is as follows: firstly, hanging a hook on an electric hoist 9 on an article, then, lifting the article by the electric hoist 9, and turning around the cooperation of a driving mechanism 2 and a turning arm 3, so that the article can rotate around a column 6 as a center, when a user needs to transport the cantilever crane, firstly, the second hydraulic push rod 16 is contracted, so that the length of the second hydraulic push rod 16 is smaller than the distance between the column 6 and a connecting block 75, then, the second hollow block 12 is upwards moved by a first hydraulic push rod 13, at the moment, by the cooperation of a traction steel rope 11, the first hollow block 10, a rotating bracket 7 and a supporting bracket 14, the supporting cantilever 8 is downwards rotated around the first cylinder 74, and the space occupied by the cantilever crane is reduced, when the user needs to unfold the cantilever crane, the second hollow block 12 is downwards moved by the first hydraulic push rod 13, at the moment, by the cooperation of the traction steel rope 11, the first hollow block 10, the rotating bracket 7 and the supporting bracket 14, the supporting cantilever 8 is upwards rotated around the first cylinder 74, when the supporting cantilever 8 is vertical to the column 6, at the moment, the first push rod is closed, the first push rod 8 is not contacted with the second push rod 16, the second push rod 16 is not easily broken, and the hydraulic push rod 16 is not contacted by the second push rod 16, at the same time, the hydraulic angle is not changed, and the second push rod 16 is easily pulled by the second push rod 16 is opened.

In addition: it should be noted that the above embodiment is only one of the optimization schemes of this patent, and any modification or improvement made by those skilled in the art according to the above concepts is within the scope of this patent.

Claims

1. Cantilever crane, including base (1), its characterized in that: the utility model discloses a hydraulic support, including base (1), rotary drive mechanism (2)'s output fixedly connected with revolving arm (3), the fixed surface of revolving arm (3) is connected with first bearing (4), the equal fixedly connected with fixed bolster (5) of surface of first bearing (4) and base (1), the fixed surface of revolving arm (3) is connected with stand (6), the right side fixedly connected with runing rest (7) of stand (6), the right side fixedly connected with support cantilever (8) of runing rest (7), the bottom fixedly connected with electric block (9) of support cantilever (8), the upper surface fixedly connected with first hollow block (10) of support cantilever (8), the inner wall fixedly connected with traction cable (11) of first hollow block (10), the equal fixedly connected with second hollow block (12) of surface of traction cable (11), the bottom of second hollow block (12) and the left side of stand (6) are all fixedly connected with first support (13) of support cantilever (14), the fixed surface of support (14) is connected with traction cable (14).

2. A jib crane according to claim 1, characterized in that: the rotary support (7) comprises a U-shaped plate (71), the right side of the upright post (6) is fixedly connected with the left side of the U-shaped plate (71), round holes (72) are formed in the front side and the rear side of the U-shaped plate (71), second bearings (73) are fixedly connected to the inner walls of the round holes (72), first cylinders (74) are fixedly connected to the inner walls of the second bearings (73), and connecting blocks (75) are fixedly connected to the surfaces of the first cylinders (74) and the left side of the supporting cantilever (8).

3. A jib crane according to claim 1, characterized in that: the support bracket (14) comprises a transverse plate (141), the bottom of the transverse plate (141) is fixedly connected with the upper surface of the upright post (6), the upper surface of the transverse plate (141) is fixedly connected with a rectangular cylinder (142), the front side and the rear side of the inner wall of the rectangular cylinder (142) are fixedly connected with second cylinders (143), the surface of the second cylinders (143) is fixedly connected with third bearings (144), the front side and the rear side of the inner wall of the rectangular cylinder (142) are fixedly connected with third cylinders (145), the surface of the third cylinders (145) is fixedly connected with fourth bearings (146), and the inner wall of the rectangular cylinder (142), the bottom of the fourth bearings (146) and the upper surface of the third bearings (144) are in contact with the surface of a traction steel cable (11).

4. A jib crane according to claim 3, characterized in that: the number of the rectangular drums (142) is two, and the two rectangular drums (142) are inverted splayed.

5. A jib crane according to claim 1, characterized in that: the bottom fixedly connected with dog (15) of support cantilever (8), the right side fixedly connected with second hydraulic push rod (16) of stand (6), the right-hand member of second hydraulic push rod (16) contacts with the left side of dog (15).

6. A jib crane according to claim 1, characterized in that: the center of the rotary arm (3) and the center of the upright post (6) are on the same vertical line.