Special lifting hook for dynamic compactor
By designing moving pulleys, dehook rope wheel sets and special pins for dehookers on the hook of the tamper, the lateral swing and wear problems caused by ordinary hooks in the construction of the tamper are solved, and a longer service life and a more stable construction process are achieved.
Patent Information
- Application Number
- CN202422293572.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-20
- Publication Date
- 2025-06-10
- Estimated Expiration
- 2034-09-20
AI Technical Summary
In the construction of a tamper, when using a normal hook, the tension of the unhook rope and the gravity of the tamper hammer have a deflection angle, which leads to the lateral swing of the hook and the tamper hammer, which easily damages the arm frame of the tamper, and the de-grinding of the unhook rope and the hook pulley leads to accelerate wear of the unhook rope.
A special hook for tamper is designed, including setting a moving pulley on the upper part of the hook, setting a dehook rope through the middle part, and setting a special pin shaft for the dehooker at the vertical position in the lower part. Through the cooperation of these components, the correct guidance and support of the dehook rope is ensured and the lateral swing of the hook is reduced.
It effectively reduces the wear of hooks and decouplers, improves the service life of the decoupler ropes, decouplers and hooks, avoids damage to the boom frame of the tamper, and improves the stability and efficiency of construction.
Smart Images
Figure CN222960989U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of dynamic compaction machines, and particularly relates to a special hook for the construction of dynamic compaction machines. Background Technique
[0002] At present, in the field of dynamic compaction machine construction, when customers carry out dynamic compaction construction, due to the lack of a special hook for dynamic compaction construction, most of them use ordinary crawler crane hooks. The unhooking rope controls the unhooking device through the hook. There is an angle between the pulling force of the unhooking rope and the gravity of the ram. At the moment of pulling off the ram, it will cause lateral swing of the hook and the ram. When the swing amount is too large, it is easy to damage the boom of the dynamic compaction machine. At the same time, lateral pulling is also easy to cause eccentric wear between the unhooking rope and the hook pulley, resulting in accelerated wear of the unhooking rope. When using an ordinary hook to lift and install the unhooking device for construction, the hook head is directly connected to the unhooking device. Since the hook head has an irregular shape and the connecting plate of the unhooking device is circular, it is easy to cause accelerated wear between the hook head and the connecting plate of the unhooking device when they are connected and sway. Therefore, customers need to provide a special hook suitable for the construction of dynamic compaction machines to improve the service life of the unhooking rope, the unhooking device and the hook. Summary of the Invention
[0003] The purpose of the utility model is precisely to provide a special hook for the construction of dynamic compaction machines aiming at the deficiencies existing in the above-mentioned prior art. Through the improvement of the traditional hook, the utility model designs a special unhooking rope pulley and a special pin shaft for the unhooking device on the hook to solve the problems of eccentric load and rapid wear of the hook during customer construction, and improve the service life of the unhooking rope, the unhooking device and the hook.
[0004] The purpose of the utility model can be realized by the following technical measures:
[0005] The special hook for the dynamic compaction machine of the utility model includes a movable pulley connected to the lifting steel wire rope at the mid-perpendicular position of the upper part of the hook, an unhooking rope pulley group connected to the unhooking rope at the middle part of the hook, and a special pin shaft for the unhooking device installed at the mid-perpendicular position of the lower part of the hook; the unhooking rope pulley group consists of two pulleys symmetrically arranged before and after the mid-perpendicular of the hook; the rope end of the unhooking rope extending from the control mechanism of the dynamic compaction machine passes through the two pulleys forming the unhooking rope pulley group in sequence and is connected to the pull rod of the unhooking device.
[0006] In the utility model, the connection lines of the centers of the movable pulley, the two pulleys forming the unhooking rope pulley group below the movable pulley, and the special pin shaft for the unhooking device below the unhooking rope pulley group are arranged in a diamond shape.
[0007] The working principle and beneficial effects of the utility model are as follows:
[0008] When the utility model is used in the construction of a dynamic compactor, the main hoist steel wire rope lifts the hook release device and the rammer through a movable pulley. The rope passing wheel of the hook release rope provides support and guidance for the hook release rope, and the connecting pin shaft of the hook release device connects the hook and the hook release device. The utility model adds a rope passing wheel for the hook release rope to the traditional hook of the dynamic compactor. The center line of the rope groove of the passing wheel and the center line of the rope groove of the movable pulley are located in the same plane, ensuring that when the hook release rope works, the hook will not be deflected by the lateral tension, resulting in the lateral swing of the hook; ensuring that the hook release rope of the dynamic compactor releases the hook directly above the rammer; at the same time, the hook head of the traditional hook is modified and replaced with a special pin shaft for the hook release device that is more suitable for the hook release device. The cylindrical pin shaft fits better with the circular hole of the hook release device connecting plate, which can effectively reduce the wear between the irregular hook head and the hook release device connecting plate and improve the service life of the hook and the hook release device. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] Figure 1 Schematic diagram of the construction of a special hook installed on a dynamic compactor.
[0010] Figure 2 Schematic diagram of the structure of a special hook for a dynamic compactor.
[0011] Figure 3 For Figure 2 side view.
[0012] Reference numerals in the figure: 1 is a movable pulley, 2 is a rope passing wheel for the hook release rope, 3 is a special pin shaft for the hook release device, 4 is a lifting steel wire rope, 5 is a hook release rope, and 6 is a hook release device. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0013] As Figure 1 , 2 , and shown in Fig. 3, the special hook for a dynamic compactor of the utility model includes a movable pulley 1 connected to the lifting steel wire rope 4 arranged at the mid-perpendicular position of the upper part of the hook, a rope passing wheel group 2 for the hook release rope 5 arranged at the middle part of the hook, and a special pin shaft 3 for the hook release device 6 installed at the mid-perpendicular position of the lower part of the hook; the rope passing wheel group 2 is composed of two passing wheels symmetrically arranged before and after the mid-perpendicular line of the hook; the rope end of the hook release rope 5 extending from the control mechanism of the dynamic compactor passes through the two passing wheels that make up the rope passing wheel group 2 in sequence and is connected to the pull rod of the hook release device (see Figure 1 ).
[0014] In the utility model, the connecting lines of the central points of the movable pulley 1, the two passing wheels that make up the rope passing wheel group 2 located below the movable pulley, and the special pin shaft 3 for the hook release device located below the rope passing wheel group are arranged in a diamond shape.
Claims
1. A special hook for a dynamic tamping machine, characterized in that: It comprises a movable pulley (1) connected to a lifting wire rope (4) arranged at the mid-vertical line position of the upper part of the hook, a dehooking rope wheel group (2) connected to a dehooking rope (5) arranged at the middle part of the hook, and a dehooking device special pin shaft (3) installed with a dehooking device (6) at the mid-vertical line position of the lower part of the hook; the dehooking rope wheel group (2) is composed of two wheels symmetrically arranged before and after the mid-vertical line of the hook; the rope end of the dehooking rope (5) extending from the control mechanism of the tamping machine passes through the two wheels constituting the dehooking rope wheel group (2) in sequence and is connected to the pull rod of the dehooking device.
2. The special hook for dynamic compaction machine according to claim 1, characterized in that: The movable pulley (1), two pulleys constituting the unhooking rope pulley assembly (2) located below the movable pulley, and the axis points of the dehooking device special pin shaft (3) located below the unhooking rope pulley assembly are arranged in a rhombus shape.