Automatic unhooking device of dynamic compactor

Abstract

The utility model discloses an automatic unhooking device of a dynamic compactor, a rammer connecting mechanism comprises a hook-shaped connecting piece and a connecting rod arranged on the hook-shaped connecting piece, the top of the connecting rod is provided with a circular connecting plate, the circular connecting plate is provided with two fixed mounting plates, the fixed mounting plates are provided with mounting holes, and the mounting holes are communicated with the connecting rod. The unhooking mechanism comprises a cylindrical body and a locking mounting assembly, the top of the cylindrical body is connected with the traction rope, two connecting openings are formed in the bottom of the cylindrical body, a mounting cavity communicated with the connecting openings is formed in the cylindrical body, a driving unit and the locking mounting assembly are arranged in the mounting cavity, and the fixed mounting plate can be inserted into the mounting hole. According to the automatic unhooking device of the dynamic compactor, the locking installation assembly is fixedly connected with the fixed installation plate under the action of the driving unit, and after the rammer is hoisted, the driving unit drives the locking installation assembly to enable the locking installation assembly to be separated from the fixed installation plate so as to achieve automatic unhooking.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, and in particular to an automatic unhooking device for a dynamic compaction machine. Background Technology

[0002] During the construction process, when the natural foundation cannot meet the requirements of the building for foundation strength, stability and deformation, it is often necessary to reinforce the foundation in order to change the engineering properties of the foundation soil and thus meet the requirements of the building project.

[0003] In foundation treatment during building construction, dynamic compaction is one of the most commonly used methods for reinforcing the foundation. The dynamic compaction machine, as the primary choice for implementing dynamic compaction, plays a crucial role in the foundation treatment process. A typical dynamic compaction machine consists of a machine body, a hammer, and a release device. The release device is connected to the dynamic compaction machine via a hook. The working principle of dynamic compaction is that the release device lifts a hammer of a certain weight to a certain height, then releases it, allowing the hammer to fall freely. After several impacts on the same compaction point, sufficient energy is accumulated to compact the foundation, ensuring that the settlement meets design requirements. Traditional unhooking devices typically require a steel wire rope to hold the tail of the device when unhooking a rammer in mid-air. Once a certain height is reached, the wire rope tightens, causing the hook to tilt and the rammer to fall. While this type of unhooking device can achieve the desired unhooking effect, the wire rope cannot pull the hook if the rammer does not reach the set height. Thus, if equipment failure or other unforeseen circumstances occur during construction, preventing the rammer from reaching the set height, it will remain suspended in the air, creating a significant safety hazard. Utility Model Content

[0004] The purpose of this invention is to provide an automatic unhooking device for a dynamic compaction machine to address the aforementioned shortcomings in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An automatic unhooking device for a dynamic compaction machine includes:

[0007] A tamping hammer connecting mechanism includes a hook-shaped connector and a connecting rod disposed on the hook-shaped connector. A circular connecting plate is disposed on the top of the connecting rod, and two fixed mounting plates are disposed on the circular connecting plate. The fixed mounting plates are provided with mounting holes.

[0008] The unhooking mechanism includes a cylindrical body and a locking mounting assembly. The top of the cylindrical body is connected to a traction rope, and the bottom of the cylindrical body has two connection openings. The interior of the cylindrical body has a mounting cavity communicating with the connection openings. The mounting cavity contains a drive unit and the locking mounting assembly. The fixed mounting plate can be inserted into the mounting hole. The locking mounting assembly is driven by the drive unit and has a hoisting state that is fixedly connected to the fixed mounting plate and a loosened state that is separated from the fixed mounting plate.

[0009] The aforementioned automatic unhooking device for a dynamic compaction machine includes a locking installation component comprising a fixed crossbar, which is fixedly installed within the installation cavity.

[0010] The aforementioned automatic unhooking device for a dynamic compaction machine includes a locking installation component that further comprises a left mounting component and a right mounting component, both of which are slidably connected to the fixed crossbar.

[0011] In the aforementioned automatic unhooking device for a dynamic compaction machine, a spring is sleeved on the fixed crossbar, and the two ends of the spring are respectively fixedly connected to the left mounting component and the right mounting component.

[0012] The aforementioned automatic unhooking device for a dynamic compaction machine includes a sliding seat and a locking rod in both the left and right mounting components. The mounting cavity is connected to the connecting opening via a connecting channel, and the locking rod can extend into the connecting opening from the connecting channel.

[0013] The aforementioned automatic unhooking device for a dynamic compaction machine includes a drive unit comprising a drive screw and a motion seat, with a baffle plate at the bottom of the drive screw.

[0014] In the aforementioned automatic unhooking device for a dynamic compaction machine, a left connecting rod is rotatably connected to the left mounting component, and a right connecting rod is rotatably connected to the right mounting component. The upper ends of both the left and right connecting rods are rotatably connected to the motion seat.

[0015] In the above technical solution, the automatic unhooking device for a dynamic compaction machine provided by this utility model includes a hammer connection mechanism and a unhooking mechanism. The hammer connection mechanism includes a hook-shaped connector and a connecting rod disposed on the hook-shaped connector. Two fixed mounting plates are disposed on the circular connecting plate at the top of the connecting rod. The unhooking mechanism includes a cylindrical body and a locking mounting assembly. A drive unit and a locking mounting assembly are disposed in the mounting cavity inside the cylindrical body. During operation, the locking mounting assembly is fixedly connected to the fixed mounting plate under the action of the drive unit. After the hammer is lifted, the drive unit drives the locking mounting assembly to separate it from the fixed mounting plate to achieve automatic unhooking. That is, the hammer can be unhooked by the drive unit at any height, which can adapt to dynamic compaction operations in different scenarios. Moreover, if equipment failure or other accidents cause the hammer to fail to reach the set height, the drive unit can also control the locking mounting assembly to separate from the fixed mounting plate, avoiding the hammer from being suspended in the air for a long time, eliminating safety hazards, and greatly improving the safety of dynamic compaction operations. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0017] Figure 1 This is a schematic diagram of the structure of the automatic unhooking device for a dynamic compaction machine provided in an embodiment of the present utility model;

[0018] Figure 2 This is a schematic diagram of the unhooking mechanism provided in an embodiment of the present utility model;

[0019] Figure 3 Provided for the embodiments of this utility model Figure 2 Enlarged view of point A in the middle.

[0020] Explanation of reference numerals in the attached figures:

[0021] 1. Hammer connecting mechanism; 11. Hook-type connector; 12. Connecting rod; 13. Circular connecting plate; 14. Fixed mounting plate; 15. Traction rope; 2. Unhooking mechanism; 21. Columnar body; 22. Connecting opening; 23. Mounting cavity; 24. Connecting channel; 25. Drive unit; 251. Drive screw; 252. Motion seat; 3. Locking mounting assembly; 31. Fixed crossbar; 32. Spring component; 33. Left mounting component; 34. Right mounting component; 35. Sliding seat; 36. Locking rod; 37. Left connecting rod; 38. Right connecting rod. Detailed Implementation

[0022] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0023] like Figure 1-3 As shown, this utility model provides an automatic unhooking device for a dynamic compaction machine, including a hammer connecting mechanism 1 and an unhooking mechanism 2. The hammer connecting mechanism 1 includes a hook-shaped connector 11 and a connecting rod 12 disposed on the hook-shaped connector 11. A circular connecting plate 13 is disposed at the top of the connecting rod 12. Two fixed mounting plates 14 are disposed on the circular connecting plate 13. The fixed mounting plates 14 are provided with mounting holes. The unhooking mechanism 2 includes a cylindrical body 21 and a locking mounting assembly 3. The top of the cylindrical body 21 is connected to a traction rope 15. Two connecting openings 22 are disposed at the bottom of the cylindrical body 21. An mounting cavity 23 communicating with the connecting openings 22 is disposed inside the cylindrical body 21. A drive unit 25 and a locking mounting assembly 3 are disposed inside the mounting cavity 23. The fixed mounting plates 14 can be inserted into the mounting holes. The locking mounting assembly 3 is driven by the drive unit 25 and has a hoisting state fixedly connected to the fixed mounting plates 14 and a loosened state separated from the fixed mounting plates 14.

[0024] Specifically, the tamping hammer connecting mechanism 1 includes a hook-shaped connector 11 and a connecting rod 12. The hook-shaped connector 11 and the connecting rod 12 can be an integral structure. Both the hook-shaped connector 11 and the connecting rod 12 are made of high-strength steel. The hook-shaped connector 11 is used to connect with the tamping hammer. A circular connecting plate 13 is provided on the top of the connecting rod 12. Two fixed mounting plates 14 are provided on the circular connecting plate 13. There is a certain gap between the two fixed mounting plates 14. The fixed mounting plate 14, the circular connecting plate 13 and the connecting rod 12 are an integral structure. The fixed mounting plate 14, the circular connecting plate 13 and the connecting rod 12 are made of high-strength steel. The fixed mounting plate 14 is provided with mounting holes. The mounting holes are corresponding to the locking mounting components 3. The locking mounting components 3 can be embedded and fixed in the mounting holes, so that the fixed mounting plate 14 can be fixedly connected to the column 21.

[0025] In this embodiment, the unhooking mechanism 2 consists of a cylindrical body 21 and an internal locking mounting assembly 3. The top of the cylindrical body 21 is provided with a connection structure that connects to the traction rope 15. The interior of the cylindrical body 21 is provided with a mounting cavity 23. The mounting cavity 23 is provided with a drive unit 25 and a locking mounting assembly 3. The drive unit 25 is connected to the locking mounting assembly 3, so that the locking mounting assembly 3 is driven to have two working positions: a first working position and a second working position. When the locking mounting assembly 3 is in the first working position, the locking mounting assembly 3 is in a hoisting state. When the locking mounting assembly 3 is in the second working position, the locking mounting assembly 3 is in a released state.

[0026] In this embodiment, two connecting openings 22 are provided at the bottom of the cylindrical body 21. These two connecting openings 22 are symmetrically distributed and communicate with the mounting cavity 23 inside the cylindrical body 21. The size and shape of the connecting openings 22 are consistent with the fixed mounting plate 14. Thus, in the initial state during use, the locking mounting component 3 is in a loose state. After the hook-shaped connector 11 is connected to the hammer, the fixed mounting plate 14 is inserted into the connecting opening 22. The locking mounting component 3 is driven by the drive unit 25 and moves to the first working position. The locking mounting component 3 is inserted into the mounting hole of the fixed mounting plate 14, thereby fixing the locking mounting component 3 and the fixed mounting plate 14. When the hammer is raised to a specified height and a heavy compaction operation is required, the drive unit 25 receives a control signal and drives the locking mounting component 3 to move to the second working position. The locking mounting component 3 separates from the fixed mounting plate 14, releasing the connection between them. At this time, the hammer connecting mechanism 1 disengages from the unhooking mechanism 2, and the hammer falls freely under its own gravity, completing the heavy compaction operation.

[0027] The automatic unhooking device for a dynamic compaction machine provided by this utility model includes a hammer connecting mechanism 1 and an unhooking mechanism 2. The hammer connecting mechanism 1 includes a hook-shaped connector 11 and a connecting rod 12 disposed on the hook-shaped connector 11. Two fixed mounting plates 14 are disposed on the circular connecting plate 13 at the top of the connecting rod 12. The unhooking mechanism 2 includes a cylindrical body 21 and a locking mounting assembly 3. A drive unit 25 and the locking mounting assembly 3 are disposed in the mounting cavity 23 inside the cylindrical body 21. During operation, the locking mounting assembly 3 is engaged with the fixed mounting plate 14 by the drive unit 25. 4. Fixed connection: After the tamping hammer is hoisted, the drive unit 25 mechanically controls the locking installation component 3 to separate it from the fixed installation plate 14 to achieve automatic unhooking. That is, the tamping hammer can be unhooked by the drive unit 25 at any height, which can adapt to the dynamic compaction operation in different scenarios. In addition, if the tamping hammer fails to reach the set height due to equipment failure or other accidents, the drive unit 25 can also control the locking installation component 3 to separate from the fixed installation plate 14, avoiding the tamping hammer from being suspended in the air for a long time, eliminating safety hazards and greatly improving the safety of dynamic compaction operation.

[0028] In this embodiment, preferably, the locking mounting assembly 3 includes a fixed crossbar 31, which is fixedly installed in the mounting cavity 23. The fixed crossbar 31 is transversely fixed in the mounting cavity 23 and is made of high-strength material to ensure that it is not prone to deformation or breakage even under large external forces during long-term use. The locking mounting assembly 3 includes a left mounting member 33 and a right mounting member 34, both of which are slidably connected to the fixed crossbar 31. The left mounting member 33 and the right mounting member 34 are connected to the drive unit 25 and can move synchronously under the drive of the drive unit 25, that is, the left mounting member 33 and the right mounting member 34 move synchronously to the first working position and the second working position.

[0029] In this embodiment, preferably, a spring member 32 is sleeved on the fixed crossbar 31. The two ends of the spring member 32 are respectively fixedly connected to the left mounting member 33 and the right mounting member 34. The spring member 32 is configured such that the spring member 32 always has elasticity. In the initial state, the spring member 32 causes the left mounting member 33 and the right mounting member 34 to be in the first working position. At this time, the left mounting member 33 and the right mounting member 34 respectively abut against the side wall of the mounting cavity 23. When the left mounting member 33 and the right mounting member 34 are driven to move closer to each other by the driving unit 25, the distance between the left mounting member 33 and the right mounting member 34 decreases, further pressing the spring member 32.

[0030] In this embodiment, preferably, both the left mounting member 33 and the right mounting member 34 include a sliding seat 35 and a locking rod 36. The mounting cavity 23 is connected to the connecting opening 22 through the connecting channel 24. The locking rod 36 can extend from the connecting channel 24 into the connecting opening 22. When the fixed mounting plate 14 is inserted into the connecting opening 22 and the left mounting member 33 and the right mounting member 34 are in the first working position, the locking rod 36 is inserted into the mounting hole of the fixed mounting plate 14.

[0031] In this embodiment, preferably, the drive unit 25 includes a drive screw 251 and a motion seat 252. A baffle plate is provided at the bottom of the drive screw 251. A ball screw structure is formed between the drive screw 251 and the motion seat 252, meaning that rotation of the drive screw 251 drives the motion seat 252 to move up and down along the axis of the drive lever. The cooperation between the drive screw 251 and the motion seat 252 enables the drive of the left mounting member 33 and the right mounting member 34 under heavy loads. A left connecting rod 37 is rotatably connected to the left mounting member 33, and a right connecting rod 38 is rotatably connected to the right mounting member 34. The upper ends of both the left connecting rod 37 and the right connecting rod 38 are rotatably connected to the motion seat 252. In practical application, the specific operation is as follows:

[0032] In the initial state, under the action of the drive screw 251 and the motion seat 252, the locking mounting assembly 3 is in the released state, that is, the left mounting part 33 and the right mounting part 34 are in the second working position (the left mounting part 33 and the right mounting part 34 are in the position of being close to each other), and the locking rod 36 of the left mounting part 33 and the right mounting part 34 is in the mounting cavity 23 and the connecting channel 24.

[0033] After connecting the hook-shaped connector 11 to the hammer, the fixed mounting plate 14 is inserted into the connection opening 22. The drive unit 25 receives the control signal and operates. Under the action of the drive screw 251, the motion seat 252, and the spring 32, the left mounting part 33 and the right mounting part 34 move in the direction of separation until the left mounting part 33 and the right mounting part 34 respectively abut against the side wall of the mounting cavity 23 (the left mounting part 33 and the right mounting part 34 are in the first working position). At this time, the locking rod 36 moves into the connection opening 22 and is inserted into the mounting hole of the fixed mounting plate 14, so that the locking rod 36 and the fixed mounting plate 14 are fixedly connected.

[0034] When the hammer is raised to the designated height and dynamic compaction is required, the drive unit 25 receives a control signal and drives the lead screw 251 and the motion seat 252 to work, causing the left mounting part 33 and the right mounting part 34 to move to the second working position (the left mounting part 33 and the right mounting part 34 are in a position close to each other), the locking rod 36 separates from the fixed mounting plate 14, and the hammer falls freely under its own gravity, completing the dynamic compaction operation.

[0035] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An automatic unhooking device for a dynamic compaction machine, characterized in that, include: A tamping hammer connecting mechanism includes a hook-shaped connector and a connecting rod disposed on the hook-shaped connector. A circular connecting plate is disposed on the top of the connecting rod, and two fixed mounting plates are disposed on the circular connecting plate. The fixed mounting plates are provided with mounting holes. The unhooking mechanism includes a cylindrical body and a locking mounting assembly. The top of the cylindrical body is connected to a traction rope, and the bottom of the cylindrical body has two connection openings. The interior of the cylindrical body has a mounting cavity communicating with the connection openings. The mounting cavity contains a drive unit and the locking mounting assembly. The fixed mounting plate can be inserted into the mounting hole. The locking mounting assembly is driven by the drive unit and has a hoisting state that is fixedly connected to the fixed mounting plate and a loosened state that is separated from the fixed mounting plate.

2. The automatic unhooking device for a dynamic compaction machine according to claim 1, characterized in that, The locking mounting assembly includes a fixing crossbar, which is fixedly installed inside the mounting cavity.

3. The automatic unhooking device for a dynamic compaction machine according to claim 2, characterized in that, The locking mounting assembly also includes a left mounting component and a right mounting component, both of which are slidably connected to the fixed crossbar.

4. The automatic unhooking device for a dynamic compaction machine according to claim 3, characterized in that, A spring is fitted onto the fixed crossbar, and the two ends of the spring are respectively fixedly connected to the left mounting piece and the right mounting piece.

5. The automatic unhooking device for a dynamic compaction machine according to claim 4, characterized in that, Both the left and right mounting components include a sliding seat and a locking rod. The mounting cavity is connected to the connecting opening through a connecting channel, and the locking rod can extend into the connecting opening from the connecting channel.

6. The automatic unhooking device for a dynamic compaction machine according to claim 5, characterized in that, The drive unit includes a drive screw and a motion seat, and a baffle plate is provided at the bottom of the drive screw.

7. The automatic unhooking device for a dynamic compaction machine according to claim 6, characterized in that, A left connecting rod is rotatably connected to the left mounting component, and a right connecting rod is rotatably connected to the right mounting component. The upper ends of both the left and right connecting rods are rotatably connected to the motion seat.

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