Dynamic compaction machine capable of being automatically, conveniently and accurately adjusted to required compaction energy

Abstract

The invention discloses a dynamic compaction machine capable of being automatically, conveniently and accurately adjusted to required compaction energy, and relates to the field of dynamic compaction machine construction. The tension sensor is additionally arranged between the luffing mechanism and the pulling plate, and the balance force composition and decomposition relation in the uniform-speed lifting process of the rammer is combined, so that the weight of the rammer can be automatically, conveniently and accurately obtained; a height sensor is additionally arranged on a rack of a main winch of the dynamic compaction machine to sense the distance between two corresponding sensing steel sheets on a hoisting steel wire rope before and after a rammer is hoisted, and the actual falling distance of the rammer can be automatically, conveniently and accurately obtained; and according to the fact that the tamping energy is equal to the product of the weight of the rammer and the actual falling distance of the rammer, when the actually measured tamping energy reaches a set value, the unhooking rope winch can adjust the length of the unhooking steel wire rope and pull the unhooking device, so that the rammer is automatically separated from the unhooking device, and the rammer freely falls to tamp a target object. According to the invention, the rammer can be automatically, conveniently and accurately adjusted to the required ramming energy before each ramming in the construction process of the dynamic compactor, the ramming quality and efficiency are improved, and the universality is high.

Description

Technical Field

[0001] The invention relates to the technical field of compaction machine construction, and more specifically to a compaction machine which can automatically, conveniently and accurately adjust to required compaction energy. Background Art

[0002] At present, in the construction field of dynamic tamping machines, the tamping energy of dynamic tamping machines is equal to the product of the lifting height of the tamping hammer (which is also the actual drop distance of the tamping hammer) and the gravity of the tamping hammer. When customers carry out dynamic tamping construction, they will choose a tamping hammer of appropriate weight for construction according to the tamping energy required by the construction party - that is, they need to weigh the mass of the tamping hammer first and calculate the corresponding weight of the tamping hammer; then adjust the lifting height of the tamping hammer according to the weight of the tamping hammer. The lifting height of the tamping hammer needs to be determined by manual measurement, and then the length of the unhooking rope is determined, and finally the tamping energy of the construction is guaranteed. However, in the actual construction process, a construction site often does not require only one type of tamping energy for construction, but generally requires a combination of several types of tamping energies, and sometimes the tamping energy of each tamping is different. In this way, it is necessary to frequently replace the tamping hammer and frequently adjust the length of the unhooking rope according to different tamping energies, which is time-consuming and labor-intensive, troublesome to operate, and the construction efficiency is relatively low. Especially in the construction of self-hole compaction, customers generally use super-high compaction hammers for construction. In order to prevent serious hammer suction during construction, the lifting height of the compaction hammer must be adjusted manually to control the amount of compaction hammer sinking, which is not only inefficient but also poses certain safety risks. Therefore, it is urgent to design a compaction machine that can automatically, conveniently and accurately adjust the compaction hammer to the required compaction energy before each compaction during the construction process of the compaction machine. Summary of the invention

[0003] The purpose of the present invention is to provide a dynamic tamping machine that can automatically, conveniently and accurately adjust to the required tamping energy in response to the deficiencies in the above-mentioned prior art. The present invention can automatically, conveniently and accurately adjust the tamping hammer to the required tamping energy before each tamping during the construction process of the dynamic tamping machine, thereby ensuring the accuracy of each tamping, greatly improving the tamping quality and tamping efficiency, and being simple to operate, flexible to use and highly versatile.

[0004] The purpose of the present invention can be achieved by the following technical measures: The present invention provides a tamping machine capable of automatically, conveniently and accurately adjusting to the required tamping energy, comprising a tamping machine main platform with a crawler walking mechanism at the bottom (the tamping machine main platform serves as the installation base and support base for components such as the lifting arm and the luffing bracket in the present invention; the tamping machine main platform with a crawler walking mechanism at the bottom facilitates the present invention to be quickly moved to the vicinity of a target object to be tamped), a lifting arm installed at the front end of the tamping machine main platform, tilted forward and having a goose-head arm (the lifting arm provides rigidity support for lifting), a luffing bracket installed at the rear end of the tamping machine main platform, tilted backward and connected to the upper end of the lifting arm by a pull rope (the luffing bracket provides an installation base for the luffing mechanism; at the same time, the luffing The bracket cooperates with the pull rope and the crane arm to form a stable tripod support structure); one end of the lifting wire rope is fixed on the fixed pulley block at the end of the goose head arm, and the other end of the lifting wire rope is wound downward through the movable pulley block for hanging the unhooking device, and then wound through the guide pulley installed at the inflection point where the goose head arm and the crane arm body intersect, and finally wound onto the main winch of the tamping machine located in the middle of the main platform of the tamping machine (from the winding path of the lifting wire rope, it can be known that the length of the lifting wire rope taken up by the main winch of the tamping machine before and after the tamping hammer is hoisted is equal to the lifting height of the tamping hammer - that is, the multiple of the actual drop distance of the tamping hammer); one end of the pull rope is fixed on the wheel frame of the guide pulley, and the other end of the pull rope is connected to the main winch of the tamping machine through the luffing mechanism. The platform is connected to the variable-length winch at the rear end; a tension sensor is added between the variable-length mechanism and the pull plate (the present invention automatically measures the tension by adding a tension sensor between the variable-length mechanism and the pull plate, and then combines the relationship between the synthesis and decomposition functions of the balancing force during the uniform-speed lifting of the rammer, so as to automatically, conveniently and accurately obtain the weight of the hoisted rammer); a height sensor is added to the frame of the main winch of the ramming machine, and in the process of lifting the rammer, the lifting wire rope is wound into the working section of the main winch of the ramming machine, and induction steel sheets matched with the height sensor are arranged at fixed intervals (the present invention senses the two corresponding induction steel sheets on the lifting wire rope before and after the rammer is lifted by adding a height sensor to the frame of the main winch of the ramming machine The distance between the two ends of the rammer can be automatically, conveniently and accurately measured, so that the length of the lifting wire rope before and after the rammer is hoisted can be automatically, conveniently and accurately measured by the main winch of the rammer, and then the actual drop distance of the rammer can be automatically, conveniently and accurately obtained); the unhooking rope winch is installed at the front end of the main platform of the rammer (to facilitate the adjustment of the length of the unhooking rope and to control the ramming energy of each blow of the rammer), and the unhooking rope winch is connected to the starting pull rod of the unhooker through the unhooking wire rope (when the external centralized control device automatically calculates the actual ramming energy reaches the set value based on the feedback signals of the tension sensor and the height sensor, the unhooking rope winch will adjust the length of the unhooking wire rope and pull the unhooker to automatically separate the rammer from the unhooker, and the rammer will fall freely to ram the target object);The tension sensor, height sensor, and unhooking rope winch are all connected to the external centralized control device in the form of electrical signals (the tension sensor feeds back the measured tension value, and the height sensor feeds back the measured winding distance of the lifting wire rope to the external centralized control device in real time, and the external centralized control device automatically calculates the actual ramming energy of the rammer at every moment based on the feedback signal). ;

[0005] The angle between the goose head arm and the boom body in the present invention is an obtuse angle (ensuring that the rammer can be lifted smoothly when the boom is slightly tilted forward).

[0006] The main winch of the dynamic compaction machine described in the present invention is arranged on the main platform of the dynamic compaction machine at a position between the lifting arm and the variable amplitude bracket (to avoid movement interference between the steel wire ropes).

[0007] The design principle of the present invention is as follows: During the construction process of the tamping machine, since the tamping energy is equal to the product of the tamping hammer weight and the actual drop distance of the tamping hammer, it is only necessary to automatically and accurately measure the tamping hammer weight and the actual drop distance of the tamping hammer to automatically, conveniently and accurately adjust to the required tamping energy. The present invention automatically measures the tension by adding a tension sensor between the amplitude variation mechanism and the pull plate, and then combines the relationship between the synthesis and decomposition functions of the balancing force during the uniform speed lifting of the rammer to automatically, conveniently and accurately obtain the weight of the hoisted rammer; the present invention automatically, conveniently and accurately obtains the actual drop distance of the rammer by adding a height sensor to the frame of the main winch of the rammer machine to sense the distance between the two corresponding sensing steel sheets on the lifting wire rope before and after the rammer is lifted - it can be known from the winding path of the lifting wire rope that the length of the lifting wire rope wound up by the main winch of the rammer machine before and after the rammer is lifted is equal to a multiple of the lifting height of the rammer (i.e., the actual drop distance of the rammer); when the external centralized control device automatically calculates the actual ramming energy corresponding to the rammer at every moment based on the feedback signals of the tension sensor and the height sensor and reaches the set value, the unhooking rope winch will adjust the length of the unhooking wire rope and pull the unhooking device to automatically separate the rammer from the unhooking device, and the rammer freely falls to hit the target object. In this way, before each tamping during the construction process of the dynamic tamping machine, the tamping hammer is automatically, conveniently and accurately adjusted to the required tamping energy, thereby ensuring the accuracy of each tamping, greatly improving the tamping quality and tamping efficiency, and greatly enhancing the versatility of the present invention. At the same time, the traditional troublesome operations of manually measuring the weight of the tamping hammer, manually measuring the lifting height of the tamping hammer, manually determining the length of the unhooking rope, manually frequently replacing the tamping hammer, and manually frequently adjusting the length of the unhooking rope are omitted, and the invention has the advantages of simple operation and flexible use.

[0008] The technical effects of the present invention are as follows: By utilizing the present invention, the rammer can be automatically, conveniently and accurately adjusted to the required rammer energy before each rammer during the construction process of the dynamic rammer machine, thereby ensuring the accuracy of each rammer and greatly improving the rammer quality and efficiency. The invention is simple to operate, flexible to use and highly versatile. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a structural schematic diagram of the present invention.

[0010] Explanation of the serial numbers in the figure: 1. Tension sensor, 2. Height sensor, 3. Unhooking rope winch, 4. Luffing mechanism, 5. Ramming machine main winch, 6. Ramming machine main platform, 7. Unhooking wire rope, 8. Unhooking device, 9. Lifting wire rope, 10. Pull rope, 11. Pull plate, 12. Luffing bracket, 13. Crane arm, 13-1. Goose head arm, 13-2. Crane arm body, 14. Moving pulley block, 15. Fixed pulley block, 16. Guide pulley, 18. Luffing winch, 19. Crawler walking mechanism, 20. Rammer. DETAILED DESCRIPTION

[0011] The present invention will be further described in conjunction with the accompanying drawings: like Figure 1As shown, a tamping machine capable of automatically, conveniently and accurately adjusting to the required tamping energy of the present invention comprises a tamping machine main platform 6 with a crawler walking mechanism 19 at the bottom (the tamping machine main platform 6 serves as the installation base and support base of the lifting arm 13, the variable amplitude bracket 12 and other components in the present invention; the tamping machine main platform 6 with a crawler walking mechanism 19 at the bottom facilitates the present invention to be quickly moved to the vicinity of the target object to be tamped), a lifting arm 13 installed at the front end of the tamping machine main platform 6, tilted forward, and having a goose head arm 13-1 (the lifting arm 13 provides rigidity support for lifting), and a lifting arm 13 installed at the rear end of the tamping machine main platform 6, tilted backward, And the luffing bracket 12 connected to the upper end of the boom 13 through the pull rope 10 (the luffing bracket 12 provides an installation foundation for the luffing mechanism 4; at the same time, the luffing bracket 12 cooperates with the pull rope 10 and the boom 13 to form a stable tripod support structure); one end of the lifting wire rope 9 is fixed to the fixed pulley block 15 located at the end of the goose head arm 13-1, and the other end of the lifting wire rope 9 is downwardly wound around the movable pulley block 14 for hanging the unhooking device 8, and then wound around the guide pulley 16 installed at the intersection of the goose head arm 13-1 and the boom body 13-2, and finally wound around the main winch 5 of the tamping machine located in the middle of the main platform 6 of the tamping machine (from the lifting It can be known from the winding path of the lifting wire rope 9 that the length of the lifting wire rope 9 taken up by the main winch 5 of the ramming machine before and after the rammer 20 is hoisted is equal to the lifting height of the rammer, that is, a multiple of the actual drop distance of the rammer); one end of the pull rope 10 is fixed to the wheel frame of the guide pulley 16, and the other end of the pull rope 10 is connected to the variable-length winch 18 located at the rear end of the main platform 6 of the ramming machine through the variable-length mechanism 4; a tension sensor 1 is added between the variable-length mechanism 4 and the pull plate 11 (the present invention automatically measures the tension by adding a tension sensor between the variable-length mechanism and the pull plate, and then combines the relationship between the synthesis and decomposition functions of the balancing force during the uniform lifting of the rammer 20, so that it can automatically The weight of the hoisted rammer 20 can be conveniently and accurately obtained); a height sensor 2 is added to the frame of the main winch 5 of the ramming machine, and during the lifting process of the rammer 20, the lifting wire rope 9 is wound into the working section of the main winch 5 of the ramming machine, and induction steel sheets matched with the height sensor 2 are arranged at fixed intervals (the present invention senses the distance between the two corresponding induction steel sheets on the lifting wire rope 9 before and after the rammer 20 is hoisted by adding a height sensor to the frame of the main winch of the ramming machine, so that the length of the lifting wire rope 9 before and after the rammer 20 is hoisted can be automatically, conveniently and accurately measured, and then the actual drop distance of the rammer can be automatically, conveniently and accurately obtained);The unhooking rope winch 3 is installed at the front end of the main platform 6 of the tamping machine (to facilitate the adjustment of the length of the unhooking rope 7 and to facilitate the control of the tamping energy of each blow of the tamping machine). The unhooking rope winch 3 is connected to the starting pull rod of the unhooking device 8 through the unhooking wire rope 7 (when the external centralized control device automatically calculates the measured tamping energy according to the feedback signals of the tension sensor 1 and the height sensor 2 and reaches the set value, the unhooking rope winch will adjust the length of the unhooking wire rope 7, pull the unhooking device 8, and automatically separate the rammer 20 from the unhooking device 8, and the rammer 20 will fall freely to tamp the target object); the tension sensor 1, the height sensor 2, and the unhooking rope winch 3 are all connected to the external centralized control device in the form of electrical signals (the tension sensor 1 feeds back the measured tension value, and the height sensor 2 feeds back the measured winding distance of the lifting wire rope 9 to the external centralized control device in real time, and the external centralized control device automatically calculates the measured tamping energy of the rammer 20 at every moment according to the feedback signal). ;

[0012] The angle between the goose head arm 13 - 1 and the boom body 13 - 2 in the present invention is an obtuse angle (ensuring that the rammer can be lifted smoothly when the boom 13 is slightly tilted forward).

[0013] The main winch 5 of the dynamic compaction machine in the present invention is arranged on the main platform 6 of the dynamic compaction machine between the lifting arm 13 and the variable amplitude bracket 12 (to avoid movement interference between the steel wire ropes).

[0014] The specific use of the present invention is as follows: Before the tamping machine is used, the main platform 6 of the tamping machine with crawler walking mechanism 19 at the bottom is driven to move quickly to the vicinity of the target object to be tamped. Before each tamping, according to the tamping energy required by the construction party, a suitable tamping hammer 20 is selected and placed on the surface of the target object to be tamped, and is hung together with the unhooking device 8. When the unhooking device 8 is pulled upright and the tamping hammer 20 is about to be separated from the surface of the target object to be tamped, the inductive steel sheet on the lifting wire rope 9 facing the height sensor 2 is recorded as the starting position. As the lifting wire rope 9 is hoisted and wound by the main winch 5 of the ramming machine, the lifting wire rope 9 drives the movable pulley group 14, the unhooking device 8, and the rammer 20 to rise vertically together; in the process of the rammer 20 being lifted and lifted, the present invention automatically measures the tension by adding a tension sensor 1 between the amplitude variation mechanism 4 and the pull plate 11, and the measured tension is fed back to the external centralized control device in real time. Combined with the relationship between the synthesis and decomposition functions of the balancing force during the uniform lifting of the rammer 20, the external centralized control device can automatically, conveniently and accurately derive the weight of the hoisted rammer 20; the present invention adds a height sensor 2 to the frame of the main winch 5 of the ramming machine to sense the distance between the two corresponding induction steel sheets on the lifting wire rope before and after the rammer 20 is lifted. , the measured tension is fed back to the external centralized control device in real time, and the external centralized control device can automatically, conveniently and accurately obtain the actual drop distance of the rammer - from the winding path of the lifting wire rope 9, it can be known that the length of the lifting wire rope 9 taken up by the main winch 5 of the tamping machine before and after the rammer 20 is hoisted is equal to the multiple of the lifting height of the rammer (i.e. the actual drop distance of the rammer); when the external centralized control device automatically calculates the actual tamping energy corresponding to the rammer 20 at every moment according to the feedback signals of the tension sensor and the height sensor, the unhooking rope winch 3 will adjust the length of the unhooking wire rope 7, pull the unhooking device 8, and automatically separate the rammer 20 from the unhooking device 8, and the rammer 20 will fall freely with the set tamping energy and accurately tamp the target object. In this way, before each tamping during the construction process of the tamping machine, the rammer 20 will be automatically, conveniently and accurately adjusted to the required tamping energy, thereby ensuring the accuracy of each tamping, greatly improving the tamping quality and tamping efficiency, and greatly enhancing the versatility of the present invention. At the same time, it eliminates the troublesome operations of manually measuring the weight of the rammer, manually measuring the lifting height of the rammer, manually determining the length of the unhooking rope, manually frequently replacing the rammer and manually frequently adjusting the length of the unhooking rope, and has the advantages of simple operation and flexible use.

Claims

1. A compacting machine capable of automatically, conveniently and accurately adjusting to a required compacting energy, comprising a compacting machine main platform (6) with a crawler walking mechanism (19) at the bottom, a lifting arm (13) installed at the front end of the compacting machine main platform (6), tilted forward and having a goose head arm (13-1), a luffing bracket (12) installed at the rear end of the compacting machine main platform (6), tilted backward and connected to the upper end of the lifting arm (13) via a pull rope (10); one end of the lifting wire rope (9) is fixed to a fixed pulley at the end of the goose head arm (13-1) The other end of the lifting wire rope (9) is wound downwardly through a movable pulley block (14) for hanging a decoupling device (8), and then wound through a guide pulley (16) installed at the intersection of the goose head arm (13-1) and the main body of the crane arm (13-2), and finally wound around the main winch (5) of the tamping machine located in the middle of the main platform (6) of the tamping machine; one end of the pull rope (10) is fixed to the wheel frame of the guide pulley (16), and the other end of the pull rope (10) is connected to the variable-length winch (18) located at the rear end of the main platform (6) of the tamping machine through the variable-length mechanism (4), characterized in that: A tension sensor (1) is added between the amplitude changing mechanism (4) and the pull plate (11); a height sensor (2) is added to the frame of the main winch (5) of the tamping machine, and induction steel sheets for use with the height sensor (2) are arranged at fixed intervals in the working section where the lifting wire rope (9) is wound into the main winch (5) of the tamping machine during the lifting process of the rammer (20); a decoupling rope winch (3) is installed at the front end of the main platform (6) of the tamping machine, and the decoupling rope winch (3) is connected to the starting pull rod of the decoupling device (8) through the decoupling wire rope (7); the tension sensor (1), the height sensor (2), and the decoupling rope winch (3) are all connected to an external centralized control device in the form of electrical signals.

2. A dynamic tamping machine capable of automatically, conveniently and accurately adjusting to the required tamping energy according to claim 1, characterized in that: The included angle between the goose head arm (13-1) and the boom body (13-2) is an obtuse angle.

3. A dynamic tamping machine capable of automatically, conveniently and accurately adjusting to the required tamping energy according to claim 1, characterized in that: The main winch (5) of the dynamic compaction machine is arranged on the main platform (6) of the dynamic compaction machine at a position between the lifting arm (13) and the luffing bracket (12).

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