A tower-type attached crane for bridge construction

Abstract

The invention belongs to the technical field of cranes, specifically a tower-type attachment crane for bridge construction, comprising a crane body, a bridge and an attachment mechanism, which is convenient for connecting and disassembling the crane body and is suitable for attaching crane bodies of different sizes; through the cooperation of an outer sleeve, an adjusting rod, a clamping ring, a limit slide bar, an adjusting rack, a support frame, an adjusting bolt and an engaging tooth head, the length between the outer sleeve and the adjusting rod can be adjusted, so that it can be suitable for the connection between crane bodies and bridges at different distances, and the tightness is good after adjustment, and it is not easy to get loose; through the cooperation between the support rod, the hollow support tube body, the sliding block and the support spring, the support rod and the hollow support tube body can move relatively, and under the elastic support of the support spring, there is an elastic support effect between the support rod and the hollow support tube body, which has a certain buffer effect.

Description

Technical Field

[0001] The invention relates to the technical field of cranes, in particular to a tower-type attached crane for bridge construction. Background Art

[0002] Tower cranes are widely used in construction projects such as industrial plants, power stations, bridges, and civil buildings. During the construction process, these tower cranes must use their own climbing devices to continuously climb and increase their height as the building continues to grow. When the height exceeds a certain height, in order to ensure the overall stability of the tower crane, the tower crane must be connected to the building using an attachment frame, a connecting pin shaft, an attachment rod, etc., so that the tower crane can be attached to the building.

[0003] When an existing tower crane is attached to a bridge, due to the different distances from the bridge, an attachment device of different sizes needs to be used each time, which has poor applicability and poor buffering effect between the bridge and the tower crane. Summary of the invention

[0004] The object of the present invention is to provide a tower attachment crane for bridge construction, so as to solve the problem that the existing tower crane proposed in the above background technology needs to use attachment devices of different sizes each time when attached to the bridge due to the different distances between the tower crane and the bridge, which has poor applicability and poor buffering effect between the bridge and the tower crane.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solutions: A tower-type attachment crane for bridge construction, comprising a crane body, a bridge and an attachment mechanism, wherein the attachment mechanism is connected between the crane body and the bridge, and the attachment mechanism plays a role in stabilizing and fixing the crane body;

[0006] The attachment mechanism comprises an outer frame, and four adjusting bolts are equidistantly threaded on the outer wall of the outer frame, and the adjusting bolts penetrate the outer frame and extend into the interior of the outer frame, and a clamping block is rotatably connected to one end of the adjusting bolt extending into the interior of the outer frame, and the four clamping blocks are respectively clamped at the four corners of the exterior of the crane body;

[0007] Both sides of the outer wall of the outer frame are connected to an outer sleeve through a pin shaft, an adjusting rod is axially inserted into one end of the outer sleeve away from the outer frame, and a clamping ring is connected to one end of the adjusting rod away from the outer sleeve;

[0008] An adjusting rack is axially arranged on the outer wall of the adjusting rod, a supporting frame is arranged on the outer wall of the outer sleeve, an adjusting bolt is threaded on the supporting frame, the axis of the adjusting bolt is perpendicular to the axis of the outer sleeve, and an engaging tooth head is rotatably connected to one end of the adjusting bolt toward the outer sleeve, and the engaging tooth head is supported on the adjusting rack;

[0009] An elastic support rod is connected between the outer sleeves on both sides, and the elastic support rod includes a hollow support tube body and a support rod inserted in the hollow support tube body and extending to the outside of the hollow support tube body. The ends of the hollow support tube body and the support rod that are away from each other are respectively connected to the outer sleeves on both sides through pins, and a sliding block is connected to one end of the support rod located inside the hollow support tube body, and support springs are connected to both sides of the sliding block, and the other end of the support spring is connected to the end of the inner cavity of the hollow support tube body.

[0010] Preferably, the clamping block is a right-angle clamping block.

[0011] Preferably, the outer frame is in the shape of a hollow ring or a hollow square.

[0012] Preferably, a limit slide is provided on the outer wall of the adjusting rod, and a limit slot matched with the limit slide is opened at one end of the outer sleeve away from the outer frame. Through the cooperation between the limit slot and the limit slide, the axial relative movement between the outer sleeve and the adjusting rod will not cause relative rotation.

[0013] Preferably, the clamping ring is a U-shaped clamping ring, and a connecting rod is inserted into the opening of the U-shaped clamping ring. The U-shaped clamping ring is clamped on the supporting beam of the bridge and is clamped on the rear side of the supporting beam of the bridge through the connecting rod, so that the U-shaped clamping ring will not detach from the supporting beam of the bridge.

[0014] Preferably, a buffer pad is embedded on the inner wall of the clamping ring, and the buffer pad is a rubber buffer pad.

[0015] Preferably, a linear bearing is sleeved on the outer wall of the support rod, and the linear bearing is embedded in the end of the hollow supporting tube body close to one side of the support rod.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1) Through the setting of the outer frame, adjusting bolts and clamping blocks, it is convenient to connect and disassemble the crane body, and is suitable for the attachment of crane bodies of different sizes;

[0018] 2) Through the cooperation of the outer sleeve, the adjusting rod, the clamping ring, the limit slide bar, the adjusting rack, the support frame, the adjusting bolt, and the meshing tooth head, the length between the outer sleeve and the adjusting rod can be adjusted, so that it can be used for the connection between the crane body and the bridge at different distances, and the tightness is good after adjustment, and it is not easy to get loose;

[0019] 3) Through the cooperation between the support rod, the hollow support tube body, the sliding block and the support spring, the support rod and the hollow support tube body can move relatively, and under the elastic support of the support spring, there is an elastic support effect between the support rod and the hollow support tube body, which has a certain buffering effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the present invention;

[0021] Figure 2 It is a bottom view structural schematic diagram of the attachment mechanism of the present invention;

[0022] Figure 3 It is a schematic diagram of the connection structure between the meshing tooth head and the adjusting rack of the present invention;

[0023] Figure 4 It is a schematic structural diagram of the elastic support rod of the present invention.

[0024] In the figure: 1 crane body, 2 bridge, 3 attachment mechanism, 31 outer frame, 32 adjusting bolts, 33 clamping blocks, 34 outer sleeve, 35 adjusting rod, 36 clamping ring, 37 limit slide bar, 38 adjusting rack, 39 support frame, 310 adjusting bolts, 311 meshing tooth head, 312 elastic support rod, 3121 support rod, 3122 hollow support tube, 3123 sliding block, 3124 support spring. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions 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 creative work are within the scope of protection of the present invention.

[0026] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0027] Example:

[0028] See also Figure 1-4The present invention provides a technical solution: a tower attachment crane for bridge construction, comprising a crane body 1, a bridge 2 and an attachment mechanism 3, wherein the attachment mechanism 3 is connected between the crane body 1 and the bridge 2, and the attachment mechanism 3 plays a role in stabilizing and fixing the crane body 1;

[0029] The attachment mechanism 3 includes an outer frame 31, and four adjusting bolts 32 are screwed at equal distances on the outer wall of the outer frame 31. The adjusting bolts 32 penetrate the outer frame 31 and extend to the inside of the outer frame 31. A clamping block 33 is rotatably connected to one end of the adjusting bolt 32 extending to the inside of the outer frame 31. The four clamping blocks 33 are respectively clamped at the four corners of the outside of the crane body 1.

[0030] Both sides of the outer wall of the outer frame 31 are connected to an outer sleeve 34 through a pin shaft, an adjusting rod 35 is axially inserted into one end of the outer sleeve 34 away from the outer frame 31, and a clamping ring 36 is connected to one end of the adjusting rod 35 away from the outer sleeve 34;

[0031] An adjusting rack 38 is axially arranged on the outer wall of the adjusting rod 35, a supporting frame 39 is arranged on the outer wall of the outer sleeve 34, an adjusting bolt 310 is screwed on the supporting frame 39, the axis of the adjusting bolt 310 is perpendicular to the axis of the outer sleeve 34, and one end of the adjusting bolt 310 is rotatably connected to a meshing tooth head 311 toward the outer sleeve 34, and the meshing tooth head 311 is supported on the adjusting rack 38;

[0032] An elastic support rod 312 is connected between the outer sleeves 34 on both sides, and the elastic support rod 312 includes a hollow support tube body 3122 and a support rod 3121 inserted in the hollow support tube body 3122 and extending to the outside of the hollow support tube body 3122. The ends of the hollow support tube body 3122 and the support rod 3121 that are separated from each other are respectively connected to the outer sleeves 34 on both sides through pins, and a sliding block 3123 is connected to one end of the support rod 3121 located inside the hollow support tube body 3122, and support springs 3124 are connected to both sides of the sliding block 3123. The other end of the support spring 3124 is connected to the end of the inner cavity of the hollow support tube body 3122.

[0033] Furthermore, the clamping block 33 is a right-angle clamping block.

[0034] Furthermore, the outer frame 31 is in a hollow ring shape or a hollow square shape.

[0035] Furthermore, a limit slide bar 37 is provided on the outer wall of the adjusting rod 35, and a limit slot adapted to the limit slide bar 37 is opened at one end of the outer sleeve 34 away from the outer frame 31. Through the cooperation between the limit slot and the limit slide bar 37, the axial relative movement between the outer sleeve 34 and the adjusting rod 35 will not cause relative rotation.

[0036] Furthermore, the clamping ring 36 is a U-shaped clamping ring, and a connecting rod is inserted at the opening of the U-shaped clamping ring. The U-shaped clamping ring is clamped on the supporting beam of the bridge 2 and is clamped on the rear side of the supporting beam of the bridge 2 through the connecting rod, so that the U-shaped clamping ring will not detach from the supporting beam of the bridge 2.

[0037] Furthermore, a buffer pad is embedded on the inner wall of the clamping ring 36, and the buffer pad is a rubber buffer pad.

[0038] Furthermore, a linear bearing is sleeved on the outer wall of the support rod 3121 , and the linear bearing is embedded in the end of the hollow support tube body 3122 close to the support rod 3121 .

[0039] Working principle: When the attachment mechanism 3 is needed, the outer frame 31 is put on the outer wall of the crane body 1. Here, the outer frame 31 can be set as two symmetrical semi-structures, and the two symmetrical semi-structures are fastened and connected by bolts or buckles. Then, the adjusting bolts 32 are screwed, and the adjusting bolts 32 drive the clamping blocks 33 to approach the four corners of the outer wall of the crane body 1, so that the clamping blocks 33 are clamped and fixed on the outer wall of the crane body 1.

[0040] The adjusting bolt 310 is loosened, so that the adjusting bolt 310 drives the meshing tooth head 311 to withdraw outward, so that the meshing tooth head 311 is disengaged from the adjusting rack 38, and then the outer sleeve 34 and the adjusting rod 35 can be relatively moved, so that the adjusting rack 38 on the adjusting rod 35 moves relative to the position of the meshing tooth head 311, until the clamping ring 36 approaches the supporting beam on the bridge 2, the clamping ring 36 is connected to the supporting beam, and then the adjusting bolt 310 is tightened, so that the meshing tooth head 311 is driven by the adjusting bolt 310 and stuck in the corresponding position of the adjusting rack 38, so that the meshing tooth head 311 and the adjusting rack 38 are connected and fixed, so that the relative position between the outer sleeve 34 and the adjusting rod 35 is fixed;

[0041] When subjected to lateral force, the support rod 3121 and the hollow support tube body 3122 move relative to each other, so that the support spring 3124 on one side is squeezed and generates elastic force, and the support spring 3124 on the other side is stretched and also generates elastic force. Under the elastic force of the support springs 3124 on both sides, the hollow support tube body 3122 and the support rod 3121 have a tendency to reset, thereby achieving a certain buffering effect.

[0042] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention; therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is limited by the attached claims rather than the above description. Therefore, it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the present invention, and any figure marks in the claims should not be regarded as limiting the claims involved.

[0043] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A tower crane for bridge construction, comprising a crane body (1), a bridge (2) and an attachment mechanism (3), characterized in that: The attachment mechanism (3) is connected between the crane body (1) and the bridge (2), and the attachment mechanism (3) plays a role in stabilizing and fixing the crane body (1); The attachment mechanism (3) comprises an outer frame (31), four first adjustment bolts (32) are equidistantly threaded on the outer wall of the outer frame (31), the first adjustment bolts (32) penetrate the outer frame (31) and extend into the interior of the outer frame (31), one end of the first adjustment bolt (32) extending into the interior of the outer frame (31) is rotatably connected to a clamping block (33), and the four clamping blocks (33) are respectively clamped at four corners of the exterior of the crane body (1); Both sides of the outer wall of the outer frame (31) are connected to an outer sleeve (34) via a pin shaft, an adjusting rod (35) is axially inserted at one end of the outer sleeve (34) away from the outer frame (31), and a clamping ring (36) is connected to one end of the adjusting rod (35) away from the outer sleeve (34); The outer wall of the adjusting rod (35) is provided with a limit slide bar (37), and one end of the outer sleeve (34) away from the outer frame (31) is provided with a limit slot matched with the limit slide bar (37), and through the cooperation between the limit slot and the limit slide bar (37), the outer sleeve (34) and the adjusting rod (35) will not rotate relative to each other during axial relative movement; The clamping ring (36) is a U-shaped clamping ring, and a connecting rod is inserted into the opening of the U-shaped clamping ring. The U-shaped clamping ring is clamped on the support beam of the bridge (2) and is clamped on the rear side of the support beam of the bridge (2) through the connecting rod, so that the U-shaped clamping ring will not be separated from the support beam of the bridge (2); An adjusting rack (38) is axially arranged on the outer wall of the adjusting rod (35); a supporting frame (39) is arranged on the outer wall of the outer sleeve (34); a second adjusting bolt (310) is threadedly connected to the supporting frame (39); the axis of the second adjusting bolt (310) is perpendicular to the axis of the outer sleeve (34); one end of the second adjusting bolt (310) is rotatably connected to an engaging tooth head (311) toward the outer sleeve (34); the engaging tooth head (311) is supported on the adjusting rack (38); An elastic support rod (312) is connected between the outer sleeves (34) on both sides. The elastic support rod (312) comprises a hollow support tube body (3122) and a support rod (3121) inserted into the hollow support tube body (3122) and extending to the outside of the hollow support tube body (3122). The ends of the hollow support tube body (3122) and the support rod (3121) that are separated from each other are respectively connected to the outer sleeves (34) on both sides through pins. A sliding block (3123) is connected to one end of the support rod (3121) located inside the hollow support tube body (3122). Support springs (3124) are connected to both sides of the sliding block (3123). The other end of the support spring (3124) is connected to the end of the inner cavity of the hollow support tube body (3122).

2. A tower crane for bridge construction according to claim 1, characterized in that: The clamping block (33) is a right-angle clamping block.

3. A tower crane for bridge construction according to claim 1, characterized in that: The outer frame (31) is in the shape of a hollow circular ring or a hollow square.

4. A tower crane for bridge construction according to claim 1, characterized in that: A buffer pad is embedded on the inner wall of the clamping ring (36), and the buffer pad is a rubber buffer pad.

5. The tower crane for bridge construction according to claim 1, characterized in that: A linear bearing is sleeved on the outer wall of the support rod (3121), and the linear bearing is embedded in the end of the hollow supporting tube body (3122) close to the support rod (3121).

Images