Releasable device for lowering and lifting sleeve frame of tower crane

Abstract

The utility model discloses a lifting-lowering releasable device for a tower crane stock, relates to the technical field of tower crane stocks, and improves the situation that nearly dozens of tons of weight of parts including a lower support, an upper support, a cargo boom, a balance arm, a balance weight, a tower top structure and the like are supported only by a jacking oil cylinder. The tower crane climbing device comprises a main body and a climbing frame, four hanging rings are arranged at the top of the main body, and through the main body, the hanging rings, balance weight clamping positions, balance weight blocks and fixing buckles, the tower crane climbing device is simple and easy to mount, convenient to construct and low in construction difficulty, and the safety of a tower crane in the jacking process can be greatly improved by the aid of the main body, the hanging rings, the balance weight clamping positions, the balance weight blocks and the fixing buckles. The tower crane sleeve frame lifting device has good performance in tower crane sleeve frame lifting construction and can be quickly mounted and dismounted, the tower crane sleeve frame lifting construction efficiency is improved to a great extent, and meanwhile the safety of constructors in the tower crane sleeve frame lifting process is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to tower machine cover frame technical field especially is involved in a tower machine cover frame reduces the releasable device of hoisting. BACKGROUND

[0002] The jacking cover frame is the key component for the self-elevating tower crane to realize jacking and adding section, and can be divided into two structural forms of external jacking and internal jacking according to the working characteristics of jacking and adding section, the external jacking can complete the heightening of one tower body standard section through one jacking process, and the operation process is simple and fast, and the domestic tower crane currently adopts this jacking mode.

[0003] During the jacking and adding section of the tower crane, the jacking cover frame is the key stressed component, and whether the structural design is reasonable and whether the size of the key part is appropriate are crucial, since the coupling bolts of the standard section and the rotating lower support are completely loosened during the jacking and adding section of the tower crane, only the jacking oil cylinder supports the weight of several components including the lower support, the upper support (rotating tower body), the hoisting arm, the balance arm and the balance weight, the tower top structure and the like of nearly tens of tons, and any accidental factor that may occur will greatly affect the safety problem during the jacking process of the tower crane.

[0004] Therefore, the present application provides a tower machine cover frame lowering hoisting releasable device. CONTENT OF THE UTILITY MODEL

[0005] In order to solve the problem that only the jacking oil cylinder supports the weight of several components including the lower support, the upper support, the hoisting arm, the balance arm and the balance weight, the tower top structure and the like of nearly tens of tons, and any accidental factor that may occur will greatly affect the safety problem during the jacking process of the tower crane, the utility model provides a tower machine cover frame lowering hoisting releasable device.

[0006] The utility model provides a tower machine cover frame lowering hoisting releasable device adopts the following technical scheme:

[0007] A tower machine cover frame lowering hoisting releasable device, including main part and climbing frame, the top of main part is equipped with four lifting lugs, the main part is covered in the outer surface of climbing frame,

[0008] One side of main part is equipped with counterweight clamping, counterweight clamping is equipped with counterweight block in, main part is equipped with fixed buckle with climbing frame junction.

[0009] Through the above technical scheme, through the surface of main part covered in climbing frame, then through fixed buckle and fix the junction between the two, and then effectively achieve the lowering hoisting effect of cover frame, avoid the secondary hoisting work of cover frame, thereby effectively increase work efficiency.

[0010] Secondly, by adding the counterweight block with the same weight as the climbing frame at the counterweight clamping position, the phenomenon of gravity center deviation during the lifting of the climbing frame can be effectively avoided.

[0011] Optionally, the cross section of the counterweight clamping position is triangular.

[0012] By adopting the above technical scheme, the placement of the counterweight block can be effectively achieved, and the phenomenon of the counterweight block falling during the lifting can be effectively avoided.

[0013] Optionally, a protection groove is formed at the inclined surface of the counterweight clamping position, and a protector is arranged at equal distances inside the protection groove.

[0014] By adopting the above technical scheme, the counterweight block can be effectively limited, and the phenomenon of the counterweight block falling due to the lifting factor can be further avoided, and the protector can further protect the counterweight block, and the phenomenon of the counterweight block falling can be further avoided.

[0015] Optionally, a telescopic rod is embedded in the protector, a spring is arranged inside the protector, and the other end of the spring is connected with the embedded end of the telescopic rod.

[0016] By adopting the above technical scheme, when the counterweight block is lifted, the counterweight block can roll inside the protection groove due to the swinging force in the air, and the protector can resist and block the surface of the counterweight block, thereby avoiding the phenomenon of the counterweight block rolling inside the protection groove.

[0017] Optionally, the fixed buckle is composed of a fixed block one and a fixed block two, and the fixed block one and the fixed block two are both C-shaped.

[0018] By adopting the above technical scheme, the fastening between the main body and the connection position of the climbing frame can be effectively achieved, and the phenomenon of loosening or even separation at the connection position during the lifting or lowering process can be avoided.

[0019] Optionally, the diameter of the fixed block two is smaller than the diameter of the fixed block one, and the fixed block two is embedded in the surface edge of the fixed block one.

[0020] By adopting the above technical scheme, the fastening of the connection position of the main body and the climbing frame can be further increased, and when the fixed block two is embedded in the fixed block one, the phenomenon of loosening or separation at the connection position of the main body and the climbing frame during the lowering or lifting process can be effectively avoided, and the overall safety of the device is effectively increased.

[0021] Optionally, a fixed groove is formed in the inner side of the fixed block one, and the fixed groove is concave-shaped.

[0022] By adopting the technical scheme, the fixed block two can be effectively embedded, and the fastening between the fixed block one and the fixed block two can be effectively increased.

[0023] Optionally, the outer side of the fixed block two is provided with a positioning plate, the positioning plate is arranged in a convex shape, the fixed block one is engaged with the fixed block two, and the front surface of the fixed block two is provided with mounting holes arranged at equal distances.

[0024] By adopting the technical scheme, the fastening of the connection between the main body and the climbing frame can be effectively achieved, and the external bolt is embedded in the mounting hole of the fixed block one through the mounting hole, so that the fastening of the connection between the main body and the climbing frame is further achieved.

[0025] In summary, the utility model has the following beneficial effects:

[0026] The main body, the lifting ring, the counterweight clamping portion, the counterweight block and the fixing buckle are simple in installation mode, convenient in construction, low in construction difficulty, good in performance in tower machine sleeve frame lifting construction, capable of being quickly installed and removed, greatly improving the construction efficiency of the tower machine sleeve frame lifting, and ensuring the safety of the construction personnel in the tower crane sleeve frame lifting process. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is a schematic diagram of the overall structure of the utility model.

[0028] Figure 2 is a schematic diagram of the main body structure of the utility model.

[0029] Figure 3 is a schematic diagram of the fixing buckle structure of the utility model.

[0030] Figure 4 is a schematic diagram of the counterweight clamping portion of the utility model.

[0031] Figure 5 is a schematic diagram of the internal structure of the protective device of the utility model.

[0032] BRIEF DESCRIPTION OF DRAWINGS

[0033] 1, main body; 101, lifting ring; 102, counterweight clamping portion; 103, counterweight block; 104, protective groove; 105, protective device; 106, spring; 107, telescopic rod; 2, climbing frame; 3, fixing buckle; 301, fixed block one; 302, fixed groove; 303, fixed block two; 304, positioning plate; 305, mounting hole. DETAILED DESCRIPTION

[0034] The following will be described in combination with the drawings of the embodiments of the utility model. Figure 1-5The technical solutions in the embodiments of the utility model are clearly and completely described, obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the scope of protection of the utility model.

[0035] Please refer to Figure 1-5 A tower machine sleeve frame lowering and lifting releasable device, including main body 1 and climbing frame 2, the top of main body 1 is equipped with four lifting lugs 101, main body 1 is sleeved on the outer surface of climbing frame 2;

[0036] One side of main body 1 is equipped with counterweight clamping 102, counterweight clamping 102 is equipped with counterweight block 103, and main body 1 is equipped with fixed buckle 3 at the connecting place with climbing frame 2;

[0037] By placing counterweight block 103 on the surface of counterweight clamping 102, the weight balance between main body 1 and climbing frame 2 can be effectively increased, main body 1 is nested on the outside of climbing frame 2, and then the two are lifted by lifting lug 101, so that the lifting and lowering effect is achieved, and the connecting place between main body 1 and climbing frame 2 can be effectively fastened by fixed buckle 3, so that the phenomenon of loosening and separation during lifting or lowering is avoided.

[0038] Refer to Figure 4 And Figure 5 Counterweight clamping 102 is triangular in cross section;

[0039] A protection groove 104 is formed at the inclined surface of counterweight clamping 102, and protection groove 104 is equipped with protection device 105 at equal intervals in the inside;

[0040] Protection device 105 is embedded with telescopic rod 107 in the inside, spring 106 is arranged in the inside of protection device 105, and the other end of spring 106 is connected with the embedded end of telescopic rod 107;

[0041] Counterweight block 103 is placed in the inside of protection groove 104, and the concave protection groove 104 can effectively avoid the falling of counterweight block 103, and when counterweight block 103 is in the inside of protection groove 104, the spring 106 is pressed by the rolling of counterweight block 103 during lifting, and the telescopic rod 107 rebounds counterweight block 103, so as to avoid the rolling of counterweight block 103 in the inside of protection groove 104, and further avoid the falling of counterweight block 103.

[0042] Refer to Figure 3The fixed buckle 3 is combined by a fixed block one 301 and a fixed block two 303, and the fixed block one 301 and the fixed block two 303 are both arranged in a C shape;

[0043] The diameter of the fixed block two 303 is smaller than that of the fixed block one 301, and the fixed block two 303 is embedded in the surface edge of the fixed block one 301;

[0044] The inner side of the fixed block one 301 is provided with a fixed groove 302, and the fixed groove 302 is arranged in a concave shape;

[0045] The outer side of the fixed block two 303 is provided with a positioning plate 304, and the positioning plate 304 is arranged in a convex shape, the fixed block one 301 is engaged with the fixed block two 303, and the front surface of the fixed block two 303 is provided with an installation hole 305;

[0046] When the main body 1 is sleeved outside the climbing frame 2, the fixed block one 301 and the fixed block two 303 are placed at the connection between the main body 1 and the climbing frame 2, the fixed block two 303 is embedded in the inside of the fixed block one 301, the positioning plate 304 is embedded in the inside of the fixed groove 302, and then the phenomenon that the fixed block one 301 and the fixed block two 303 are not level is avoided;

[0047] Secondly, the external bolt is penetrated through the installation hole 305, so that the external bolt extends to the installation hole 305 of the fixed block one 301, and then the fastening of the connection between the main body 1 and the climbing frame 2 is achieved, and the phenomenon that the two are loose or separated is avoided.

[0048] The implementation principle of the utility model is as follows: firstly, the main body 1 is sleeved outside the climbing frame 2, the counterweight block 103 is placed at the corresponding counterweight clamping position 102, the counterweight block 103 enters the inside of the protection groove 104, the main body 1 is fixed and fastened at the connection with the climbing frame 2 through the fixed block one 301 and the fixed block two 303, the device is hoisted as a whole through the external rope penetrating the lifting ring 101, and then the effect of reducing lifting is achieved.

[0049] The above is only the preferred embodiment of the utility model, and is not used for limiting the utility model, although the utility model is described in detail with reference to the foregoing embodiment, the technical scheme recorded in the foregoing embodiments can be modified or some technical features can be replaced equivalently for the person skilled in the art. Any modification, equivalent replacement, improvement and the like within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A tower frame lowering and hoisting releasable device, comprising a main body (1) and a climbing frame (2), the top of the main body (1) is provided with four lifting rings (101), and the main body (1) is sleeved on the outer surface of the climbing frame (2). characterized in that One side of the main body (1) is provided with a counterweight clamping (102), the counterweight clamping (102) is provided with a counterweight block (103) inside, and the connection part of the main body (1) and the climbing frame (2) is provided with a fixed buckle (3).

2. The tower crane superstructure descent and hoist release device of claim 1, wherein: The counterweight clamping (102) is triangular in cross section.

3. The tower crane superstructure descent and hoist release device of claim 1, wherein: The inclined surface of the counterweight clamping (102) is provided with a protection groove (104), and the inside of the protection groove (104) is provided with a protection device (105) at equal intervals.

4. The tower crane suit frame lowering and hoisting releasable device according to claim 3, characterized in that: The inside of the protection device (105) is embedded with a telescopic rod (107), the inside of the protection device (105) is provided with a spring (106), and the other end of the spring (106) is connected with the embedded end of the telescopic rod (107).

5. The tower crane superstructure descent and hoist release device of claim 1, wherein: The fixed buckle (3) is composed of a fixed block one (301) and a fixed block two (303), and the fixed block one (301) and the fixed block two (303) are both C-shaped.

6. The tower crane superstructure descent and hoist release device of claim 5, wherein: The diameter of the fixed block two (303) is smaller than that of the fixed block one (301), and the fixed block two (303) is embedded in the surface edge of the fixed block one (301).

7. The tower crane superstructure descent and hoist releasable device of claim 5, wherein: The inside of the fixed block one (301) is provided with a fixed groove (302), and the fixed groove (302) is concave-shaped.

8. The tower crane superstructure descent and hoist release device of claim 5, wherein: The outside of the fixed block two (303) is provided with a positioning plate (304), and the positioning plate (304) is convex-shaped, the fixed block one (301) and the fixed block two (303) are engaged, and the front surface of the fixed block two (303) is provided with an installation hole (305) at equal intervals.

Images