Automatic pounder hooking recognition and compaction settlement measurement device for dynamic compaction machine

Abstract

The utility model relates to the technical field of foundation treatment construction, in particular to an automatic pounder hooking recognition and compaction settlement measurement device for a dynamic compaction machine. Comprising a stay wire type altimeter, an automatic unhooking mechanism and a hook head mechanism, and the hook head mechanism comprises a hook head drag hook, a pressure sensor connected to the outer side of a hook head rotating shaft and a hook head pressure spring connected to the outer side of the upper end of the hook head drag hook; the automatic unhooking mechanism comprises an automatic unhooking starting device connected to the upper portion of the hook head protrusion, and the stay wire type altimeter is connected to the upper end of the automatic unhooking starting device. The device is simple in structure, reasonable in design and convenient to use, not only can realize automatic unhooking, but also can realize state monitoring, can accurately measure the compaction settlement, saves the labor intensity, improves the working efficiency, and creates better economic value and economic benefit.

Description

Technical Field

[0001] The utility model relates to the technical field of foundation treatment construction, in particular to an automatic hook identification and tamping amount measurement device for a tamping hammer of a dynamic tamping machine. Background Art

[0002] Dynamic compaction is widely used in foundation reinforcement construction because of its simple operation, significant reinforcement effect, high efficiency and low construction cost. Among them, the tamping amount is one of the important parameters for evaluating the quality of dynamic compaction. At present, the main means of measuring the tamping amount is manual measurement by surveyors, which affects the construction efficiency and has a high safety risk factor.

[0003] Chinese invention patent CN202111607395.8 discloses a tamping amount measurement system, tamping machine and tamping amount measurement method for a dynamic tamping machine. This method transmits signals through a tension sensor to control a wire displacement sensor to measure the tamping amount. However, this method is greatly affected by external interference factors, especially the inaccurate tension monitoring, which often causes excessive measurement errors. Chinese invention patent CN202211328501.3 discloses a tamping amount measurement method based on a TOF camera. This method moves the TOF camera to the top of the tamping pit to measure the point cloud position information of each point in the tamping pit relative to the center of the camera, processes the point cloud position information data, and compares the changes in the total tamping amount data after the last two tamping operations to achieve tamping amount monitoring. However, this method has a complex process, is greatly affected by the harsh on-site environment, and has low accuracy. Utility Model Content

[0004] In view of the above problems, the utility model proposes a device for automatically identifying the hook of a rammer and measuring the tamping amount of a dynamic tamping machine, so as to solve the problems of inaccurate tamping amount measurement and inconvenient measurement methods in the prior art.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a device for automatically identifying hooks and measuring the tamping weight of a rammer for a tamping machine, characterized in that it includes a wire-drawing altimeter, an automatic unhooking mechanism and a hook head mechanism, the hook head mechanism includes a hook head pull hook and a pressure sensor connected to the outside of the hook head rotating shaft, and a hook head pressure spring connected to the outside of the upper end of the hook head pull hook; the automatic unhooking mechanism includes an automatic unhooking starting device connected to the top of the hook head protrusion, and the wire-drawing altimeter is connected to the upper end of the automatic unhooking starting device;

[0006] In the hooking state, the upper end of the rammer is connected to the two hook hooks, the hook head pressure spring is compressed by the outer side of the upper end of the hook head hook, the hook head protrusion contacts the automatic unhooking starting device, and the outer side of the hook head rotating shaft is separated from the pressure sensor; in the non-hooking state, the upper end of the rammer is separated from the two hook head hooks, the hook head pressure spring pushes the outer side of the upper end of the hook head hook inward, the hook head protrusion is separated from the automatic unhooking starting device, and the outer side of the hook head rotating shaft contacts the pressure sensor.

[0007] The hook head mechanism also includes an umbrella-shaped guide cover located above the rammer.

[0008] The hanging shaft of the automatic unhooking starting device is connected to the steel wire rope of the tamping machine, and the hanging shaft is lifted under the traction of the steel wire rope of the tamping machine; in the hook state, the automatic unhooking starting device is connected to the hook head protrusion through the automatic unhooking starting device pulley below, and the upper part of the automatic unhooking starting device is connected to the automatic unhooking starting device pull rod, and the outer end of the automatic unhooking starting device pull rod extends out and is connected to the traction rope, and a section of the traction rope is fixed to the lower part of the tamping machine, and the length of the traction rope controls the lifting height of the rammer.

[0009] The cable-type altimeter is fixed on the top pulley of the ramming machine lifting arm, the cable end is fixed on the automatic unhooking starting device, and the cable-type altimeter and the cable end are kept on the same vertical line.

[0010] The lower end of the automatic unhooking starting device is brought into contact with and separated from the hook head protrusion through the automatic unhooking starting device pulley, thereby controlling the hook head in the hooked and unhooked states.

[0011] The utility model provides a rammer automatic unhooking device and a ramming sinking amount measuring device for a dynamic ramming machine. The problem of accurate measurement signal is solved by installing a pressure sensor on the rammer automatic unhooking device, which is not affected by external interference; the problem of measurement accuracy is solved by using a pull-wire height gauge. The device has a simple structure, reasonable design, and is easy to use. It can realize automatic unhooking and status monitoring, and can accurately measure the ramming sinking amount, saving labor intensity, improving work efficiency, and creating better economic value and economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic cross-sectional view of the automatic unhooking device when the rammer is in the unhooked state;

[0013] Figure 2 It is a schematic cross-sectional view of the automatic unhooking device when the rammer is in the hooking state;

[0014] Figure 3 It is a schematic diagram of the method of using the utility model;

[0015] In the figure: 1. pressure sensor; 2. guide cover; 2-1. hook head pull hook; 2-2. hook head protrusion; 3. hook head rotating shaft; 4. automatic unhooking starting device; 4-1. automatic unhooking starting device pulley; 5. hook head pressure spring; 6. rammer; 7. automatic unhooking starting device pull rod; 8. hanging shaft; 9. pull-wire altimeter; 9-1. pull-wire end; 9-2. altimeter measuring line; 10. traction rope; 11. dynamic rammer. DETAILED DESCRIPTION

[0016] The present invention is further described below in conjunction with the accompanying drawings, but the present invention is not limited to the specific embodiments. Example 1

[0017] like Figure 1-Figure 2 As shown, a device for automatic hook identification and tamping sinking measurement of a rammer for a tamping machine includes a wire-drawing altimeter 9, an automatic unhooking mechanism and a hook head mechanism, wherein the hook head mechanism includes a hook head pull hook 2-1 and a pressure sensor 1 connected to the outside of a hook head rotating shaft 3, a hook head pressure spring 5 connected to the outside of the upper end of the hook head pull hook 2-1, and an umbrella-shaped guide cover 2 located above the rammer 6; the automatic unhooking mechanism includes an automatic unhooking starting device 4 connected to the top of the hook head protrusion 2-2, and the wire-drawing altimeter 9 is connected to the upper end of the automatic unhooking starting device 4; the wire-drawing altimeter 9 and the pressure sensor 1 are both connected to the controller signal;

[0018] like Figure 2 As shown, in the hook state, the upper end of the rammer 6 is connected to the two hook hooks 2-1, the hook pressure spring 5 is compressed by the outer side of the upper end of the hook hook 2-1, the hook protrusion 2-2 contacts the automatic unhooking start device 4, and the outer side of the hook rotating shaft 3 is separated from the pressure sensor 1; Figure 1 As shown, in the non-hanging state, the upper end of the rammer 6 is separated from the two hook hooks 2-1, the hook pressure spring 5 pushes the outer side of the upper end of the hook hook 2-1 inward, the hook protrusion 2-2 is separated from the automatic unhooking starting device 4, and the outer side of the hook rotating shaft 3 contacts the pressure sensor 1.

[0019] The hanging shaft 8 of the automatic unhooking starting device 4 is connected to the steel wire rope of the tamping machine 11, and the hanging shaft 8 is lifted under the traction of the steel wire rope of the tamping machine 11, that is, the automatic unhooking starting device 4 and the tamping hammer 6 are lifted.

[0020] The cable-type altimeter 9 is fixed to the top pulley of the boom of the dynamic tamping machine 11, and the cable end 9-1 is fixed to the automatic unhooking starting device 4, and the cable-type altimeter 9 and the cable end 9-1 are kept on the same vertical line.

[0021] When the automatic unhooking starting device 4 is in the hooked state, it is connected to the hook head protrusion 2-2 through the automatic unhooking starting device pulley 4-1 below. The upper part of the automatic unhooking starting device 4 is connected to the automatic unhooking starting device pull rod 7. The outer end of the automatic unhooking starting device pull rod 7 extends out and is connected to the traction rope 10. A section of the traction rope 10 is fixed to the lower part of the rammer 11, and the length of the traction rope 10 is fixed. During the lifting process of the rammer 6, the traction rope 10 is driven to gradually straighten. When the traction rope 10 is straightened, the rammer 6 continues to lift, and the tension generated by the traction rope 10 pulls the automatic unhooking starting device pull rod 7 downward.

[0022] The automatic unhooking starting device pull rod 7 drives the automatic unhooking starting device 4 to move upward.

[0023] The lower end of the automatic unhooking starting device 4 is brought into contact with and separated from the hook head protrusion 2-2 through the automatic unhooking starting device pulley 4-1, thereby realizing the control of the hook head in the hooking and unhooking states. Example 2

[0024] like Figure 3 As shown, the method for using the device described in Example 1 includes the following steps:

[0025] S1: Equipment installation: The device described in Example 1 is installed on the dynamic compaction machine 11.

[0026] S2: Signal connection: Connect the wire-type height gauge 9, the pressure sensor 1 and the controller.

[0027] S3: Dynamic compaction machine is in place. Dynamic compaction machine 11 and rammer 6 are in place according to the designed coordinates.

[0028] S4: First hooking. The dynamic tamping machine 11 controls the device of the utility model to descend and performs the first hooking. The hooking is successful, and the hook is separated from the pressure sensor 1 to generate a signal. The initial length H0 of the wire-type height gauge is also recorded.

[0029] S5: lifting. After the hook is completed, the first lifting is performed, and the pull-wire height gauge 9 automatically shrinks during the device lifting process.

[0030] S6: Unhooking. When the rammer 6 reaches the specified height, the automatic unhooking mechanism is activated, and the rammer 6 automatically detaches and falls. When the automatic hooking is completed, the hook contacts the pressure sensor 1 again under the action of gravity and the pressure of the hook head pressure spring 5, and generates a signal.

[0031] S7: hooking for the second time. After the rammer 6 automatically disengages from the drop, the dynamic rammer 11 controls the device to descend again to hook. The hooking is successful, the hook is disengaged from the pressure sensor 1, and a signal is generated again, and the initial length H1 of the wire-type height gauge 9 is recorded.

[0032] S8: Calculate the first tamping amount. △H1=H1-H0

[0033] S9: Repeat steps S5, S6, S7, and S8 until all tamping times of the tamping point are completed, and the tamping amounts of all tamping times are measured and recorded.

[0034] S10: Determine the total tamping amount of the current tamping point and the tamping amounts of the last two tamping points, compare them with the design requirements, and judge whether the tamping quality is qualified.

[0035] The above is an exemplary description of the present invention. It should be noted that, without departing from the core of the present invention, any simple deformation, modification or other equivalent replacement that can be done by other technical personnel in this field without expending creative labor falls within the protection scope of the present invention.

Claims

1. A device for automatically identifying the hook of a tamping hammer and measuring the tamping amount of a dynamic tamping machine, characterized in that: It includes a wire-drawing altimeter, an automatic unhooking mechanism and a hook head mechanism, wherein the hook head mechanism includes a hook head pull hook and a pressure sensor connected to the outside of the hook head rotating shaft, and a hook head pressure spring connected to the outside of the upper end of the hook head pull hook; the automatic unhooking mechanism includes an automatic unhooking starting device connected to the top of the hook head protrusion, and the wire-drawing altimeter is connected to the upper end of the automatic unhooking starting device; In the hooking state, the upper end of the rammer is connected to the two hook hooks, the hook head pressure spring is compressed by the outer side of the upper end of the hook head hook, the hook head protrusion contacts the automatic unhooking starting device, and the outer side of the hook head rotating shaft is separated from the pressure sensor; in the non-hooking state, the upper end of the rammer is separated from the two hook head hooks, the hook head pressure spring pushes the outer side of the upper end of the hook head hook inward, the hook head protrusion is separated from the automatic unhooking starting device, and the outer side of the hook head rotating shaft contacts the pressure sensor.

2. The automatic hook identification and tamping amount measurement device for a tamping hammer of a dynamic tamping machine according to claim 1, characterized in that: The hook head mechanism also includes an umbrella-shaped guide cover located above the rammer.

3. The automatic hook identification and tamping amount measurement device for a tamping hammer of a dynamic tamping machine according to claim 1, characterized in that: The hanging shaft of the automatic unhooking starting device is connected to the steel wire rope of the tamping machine, and the hanging shaft is lifted under the traction of the steel wire rope of the tamping machine; in the hook state, the automatic unhooking starting device is connected to the hook head protrusion through the automatic unhooking starting device pulley below, and the upper part of the automatic unhooking starting device is connected to the automatic unhooking starting device pull rod, and the outer end of the automatic unhooking starting device pull rod extends out and is connected to the traction rope, and a section of the traction rope is fixed to the lower part of the tamping machine, and the length of the traction rope controls the lifting height of the rammer.

4. The automatic hook identification and tamping amount measurement device for a tamping hammer of a dynamic tamping machine according to claim 1, characterized in that: The cable-type altimeter is fixed on the top pulley of the ramming machine lifting arm, the cable end is fixed on the automatic unhooking starting device, and the cable-type altimeter and the cable end are kept on the same vertical line.

5. The automatic hook identification and tamping amount measurement device for a tamping hammer of a dynamic tamping machine according to claim 1, characterized in that: The lower end of the automatic unhooking starting device is brought into contact with and separated from the hook head protrusion through the automatic unhooking starting device pulley, and the hook head is controlled in the hooking and unhooking states.

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