Detachable angle-self-adjusting double-pulley hoisting pulley block
By designing a detachable, angle-adjustable double pulley hoisting pulley block, the problem of adjusting the hoisting angle of steel truss bridge components was solved, hoisting efficiency was improved, and the hoisting needs of different types of components were met.
Patent Information
- Application Number
- CN202520106476.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-17
- Publication Date
- 2025-12-19
- Estimated Expiration
- 2035-01-17
AI Technical Summary
In existing technologies, during the hoisting of steel truss bridge components, the hoisting angle is difficult to adjust, leading to misalignment of bolt holes and failure to position the components.
A detachable, angle-adjustable double pulley hoisting pulley assembly was designed. The angle adjustment is achieved through the pulley assembly connected by a pin shaft. The assembly includes a connecting plate and a pin shaft. The pulley can rotate around the pin shaft. The assembly is combined with bearings and locking pins to ensure stability and detachability.
It enables convenient adjustment of the component hoisting angle, solves the problem of hoisting angle deviation, improves the efficiency of component hoisting, and avoids the tedious process of frequently changing hoisting tools.
Smart Images
Figure CN223688015U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to hoisting equipment technical field, especially relates to a detachable, angle self -adjusting double pulley hoisting pulley block. BACKGROUND
[0002] At present, a large number of domestic cross-river, cross-river, cross-sea bridges are under construction or planning to be built, most of which adopt steel truss bridge, and all the upper and lower layer public and private bridges adopt steel truss structure, and the connection of such large steel truss bridge adopts bolted or bolted as the main bolted combination form.The steel truss bridge member types have chord, web member, bridge deck plate etc.;Meanwhile, the bridge is provided with longitudinal slope, and the chord and bridge deck plate exist certain angle during installation and positioning, and the angle changes with the bridge linear type;Among them, the angle of inclined web member may be between 30 ° and 60 ° due to different truss height and bay spacing.Due to the bolted form of component, the hoisting angle of component during installation is particularly important, and if the angle deviates, the bolt hole cannot be aligned, and the component cannot be in place.
[0003] Based on the above technical problems, it is necessary to design a hoisting pulley block to realize the component hoisting angle adjustment. UTILITY MODEL CONTENTS
[0004] The utility model aims at the defects existing in the prior art, and provides a detachable, angle self-adjusting double pulley hoisting pulley block, which has simple structure, convenient use and can conveniently adjust the component hoisting angle.
[0005] Technical scheme: in order to realize the above object, the utility model provides a detachable, angle self-adjusting double pulley hoisting pulley block, which comprises a set of pulley assembly and connecting piece, the connecting piece comprises connecting plate one and connecting plate two and pin shaft, the connecting plate one and connecting plate two are connected through pin shaft;
[0006] The pulley assembly comprises a shell and a pulley, the pulley is rotationally arranged on the lower part of the shell, the upper part of the shell is provided with an ear, and the connecting plate one and the connecting plate two are arranged on the shells of the two pulley assemblies respectively.
[0007] The two pulley assemblies realize the detachable function through the connecting piece, and can be used alone or in combination;The connecting piece is in the form of pin shaft plate and pin shaft, and the two pulley assemblies can rotate a certain angle around the pin shaft, so as to realize the angle self-adjusting.
[0008] Further, the corresponding positions of the connecting plate one and the connecting plate two are provided with pin holes, the pin shaft is arranged through the pin holes, the both ends of the pin shaft are provided with plug holes along the radial direction, and the plug holes are provided with plugs.The plug limits the axial movement of the pin shaft, prevents it from falling off, and is convenient to disassemble.
[0009] Further, the lower part of the shell is provided with a bearing hole, the bearing hole is provided with a bearing, the bearing is sleeved with a rotating shaft, and the pulley is arranged on the rotating shaft. The rotating shaft and the pulley can rotate on the bearing.
[0010] Further, the two ends of the rotating shaft are provided with locking latches. The locking latches limit the axial movement of the rotating shaft.
[0011] Further, the upper part of the shell is provided with a set of reinforcing connecting plates, and the two ends of the lifting lug are connected with the reinforcing connecting plates. The shell is provided with at least one set of stiffening plates, and the bottom and top of the lifting lug are connected with the stiffening plates. The connecting reinforcing plates and the stiffening plates enhance the connection strength between the lifting lug and the shell.
[0012] Further, the lifting lug is provided with a rolling bearing, and the axial direction of the lifting lug is consistent with the pulley. The rolling bearing enables the shell to always maintain verticality under force.
[0013] The above technical scheme can be seen that, compared with the prior art, the utility model has the following beneficial effects:
[0014] The utility model provides a kind of split, angle self-adjusting double pulley hoisting pulley block, simple structure, successfully overcome the problem of control component hoisting angle, and solve the cumbersome problem of frequently replacing sling hoist when hoisting different types of members, can fully meet the hoisting needs of various components of steel truss girder bridge, to greatly improve the work efficiency of component hoisting. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 It is a kind of split, angle self-adjusting double pulley hoisting pulley block of the utility model structure schematic view
[0016] Figure 2 It is a kind of split, angle self-adjusting double pulley hoisting pulley block of the utility model plan view;
[0017] Figure 3 It is Figure 2 A-A section view.
[0018] In the figure: 1-pulley assembly, 11-shell, 111-bearing, 112-rotating shaft, 113-locking latch, 114-reinforcing connecting plate, 115-stiffening plate, 12-pulley, 13-lifting lug, 131-rolling bearing, 2-connecting piece, 21-connection plate one, 22-connection plate two, 23-pin shaft, 231-peg. DETAILED DESCRIPTION
[0019] It should be understood that the specific embodiments described herein are only used to explain the utility model, and are not used to limit the utility model.
[0020] AsFigures 1-3 As shown in the drawings, the detachable and angle self-adjusting double-pulley hoisting pulley block comprises a set of pulley assemblies 1 and a connecting piece 2, the connecting piece 2 comprises a connecting plate one 21 and a connecting plate two 22 and a pin shaft 23, the connecting plate one 21 and the connecting plate two 22 are connected through the pin shaft 23.
[0021] The pulley assembly 1 comprises a shell 11 and a pulley 12, the pulley 12 is rotationally arranged at the lower part of the shell 11, the upper part of the shell 11 is provided with an ear 13, and the connecting plate one 21 and the connecting plate two 22 are arranged on the shells 11 of the two pulley assemblies 1 respectively.
[0022] In this embodiment, the connecting plate one 21 and the connecting plate two 22 are inserted and connected, that is, after the connecting plate two 22 is inserted into the aligned pin holes on the connecting plate one 21, the pin shaft 23 is arranged through the pin holes to realize the rotational connection of the two.
[0023] Specifically, the lower part of the shell 11 is provided with a bearing hole, the bearing hole is provided with a bearing 111, the bearing 111 is sleeved with a rotating shaft 112, and the pulley 12 is arranged on the rotating shaft 112. The two ends of the rotating shaft 112 are provided with locking latches 113.
[0024] In addition, the upper part of the shell 11 is provided with a set of reinforcing connecting plates 114, and the two ends of the ear 13 are connected with the reinforcing connecting plates 114. The shell 11 is provided with at least one set of stiffening plates 115, and the bottom and top of the ear 13 are connected with the stiffening plates 115.
[0025] Preferably, the ear 13 is provided with a rolling bearing 131, and the axial direction of the ear 13 is consistent with the pulley 12.
[0026] The detachable and angle self-adjusting double-pulley hoisting pulley block provided in the embodiment is used, a steel wire rope is arranged on each of the ears 13 of the pulley assemblies 1, and the other end of the steel wire rope is hung on the hook of the hoisting equipment; two main hoisting steel wire ropes pass through the two pulleys 12 respectively to form four rope heads; according to the type of the hoisted component and the angle to be adjusted, an auxiliary steel wire rope and a hand-operated hoist are arranged, the auxiliary steel wire rope and the hoist are connected in series, one end of the steel wire rope is hung on the hook of the hoisting equipment, and the hook of the hand-operated hoist is hung on the component hoisting ear or the auxiliary ear.
[0027] The component hoisting is mainly stressed by the main hoisting steel wire rope, the four main hoisting steel wire rope heads are connected with the four hoisting lugs of the component through the shackles, when hoisting, the component is first basically adjusted to the installation state through the hand-operated hoist, then the hand-operated hoists are all tightened to prevent the steel wire rope from sliding in the pulley assembly 1, when the component is aligned, the rod is fine-adjusted through the hoist again to realize the accurate alignment of the rod.
[0028] When hoisting the component, the main hoisting steel wire ropes on the two pulley assemblies 1 are affected by the horizontal distance of the hoisting points, and the two groups of steel wire ropes have an included angle, since the two pulley assemblies 1 are connected by the pin shaft 23, the two pulley assemblies 1 can rotate around the pin shaft 23, the direction of the pulley assembly 1 always keeps consistent with the direction of the steel wire rope, and the self-adjustment of the angle of the pulley assembly is realized. When the planar size of the component is large and the distance of the hoisting points is far, the included angle of the two groups of main hoisting steel wire ropes can exceed the self-adjustment angle between the pulley assemblies, at this time, the pin shaft 23 connected in the middle can be removed, the double-pulley hoisting pulley assembly is split into two independent pulley assemblies 1, the hoisting requirement can be met, meanwhile, the horizontal constraint of the steel wire ropes above the two pulley assemblies 1 is removed, and the included angle of the two groups of main hoisting steel wire ropes is reduced.
[0029] The above only describes the preferred embodiments of the present application, and it should be noted that for ordinary skilled in the art, without departing from the principles of the present application, a number of improvements can be made, and these improvements should also be considered as the protection scope of the present application.
Claims
1. A detachable, angular self-adjusting double pulley hoisting pulley block, characterized in that, The utility model relates to a set of pulley assembly (1) and connecting piece (2), connecting piece (2) includes connecting plate one (21) and connecting plate two (22) and pin shaft (23), connecting plate one (21) and connecting plate two (22) are connected through pin shaft (23), The pulley assembly (1) includes a shell (11) and a pulley (12), the pulley (12) is rotatably arranged in the lower part of the shell (11), the upper part of the shell (11) is provided with an ear (13), the connecting plate one (21) and the connecting plate two (22) are arranged on the shell (11) of two pulley assemblies (1) respectively.
2. A dismountable, angular self-adjusting double-pulley hoisting pulley block according to claim 1, characterized in that, The corresponding positions of the connecting plate one (21) and the connecting plate two (22) are provided with pin holes, the pin shaft (23) is arranged through the pin holes, the both ends of the pin shaft (23) are provided with plug holes along the radial direction thereof, and the plug holes are provided with plug pins (231).
3. A dismountable, angular self-adjusting double-pulley hoisting pulley block according to claim 1, characterized in that, The lower part of the shell (11) is provided with a bearing hole, the bearing hole is provided with a bearing (111), the bearing (111) is sleeved with a rotating shaft (112), and the pulley (12) is arranged on the rotating shaft (112).
4. A dismountable, angular self-adjusting double-pulley hoisting pulley block according to claim 3, characterized in that, The both ends of the rotating shaft (112) are provided with locking plug pins (113).
5. A dismountable, angular self-adjusting double-pulley hoisting pulley block according to claim 1, characterized in that, The upper part of the shell (11) is provided with a set of reinforcing connecting plates (114), and the both ends of the ear (13) are connected with the reinforcing connecting plates (114).
6. A dismountable, angular self-adjusting double-pulley hoisting pulley block according to claim 1, characterized in that, The shell (11) is provided with at least one set of stiffening plates (115), and the bottom and top stiffening plates (115) of the ear (13) are connected.
7. A dismountable, angular self-adjusting double-pulley hoisting pulley block according to claim 1, characterized in that, The ear (13) is provided with a rolling bearing (131), and the axial direction of the ear (13) is consistent with the pulley (12).