CN212639774U - Backward-tilting prevention control system of dynamic compaction machine - Google Patents
Backward-tilting prevention control system of dynamic compaction machine Download PDFInfo
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- CN212639774U CN212639774U CN202021437615.8U CN202021437615U CN212639774U CN 212639774 U CN212639774 U CN 212639774U CN 202021437615 U CN202021437615 U CN 202021437615U CN 212639774 U CN212639774 U CN 212639774U
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Abstract
The utility model discloses a back-tilting prevention control system of a dynamic compactor, which comprises a controller, a back-tilting prevention oil cylinder, an oil pump, an electric control hydraulic valve and a sensor; the anti-back-tilting hydraulic control system comprises a dynamic compaction machine, an anti-back-tilting oil cylinder, a sensor, an electric control hydraulic valve, an oil inlet and an oil outlet of the oil cylinder, wherein the anti-back-tilting oil cylinder is arranged at the tail of the dynamic compaction machine, the sensor is arranged on the anti-back-tilting oil cylinder and is used for judging whether the anti-back-tilting oil cylinder is supported on the ground in an extending mode to reach a preset recoil force or not, an A, B oil; when the electric control hydraulic valve is in the left position, the anti-back-tilting oil cylinder extends; when the electric control hydraulic valve is positioned at the middle position, the oil inlet and outlet way of the anti-back-tilting oil cylinder is locked; when the electric control hydraulic valve is in the right position, the anti-back-tilting oil cylinder retracts; the sensor is connected with the input end of the controller, and the electric control hydraulic valve is connected with the output end of the controller. The utility model discloses reduce dynamic compactor hypsokinesis impact force, reduce and sway around the dynamic compactor, improve dynamic compactor operating stability, prevent that the dynamic compactor from rotating to support and rotary platform equipment from damaging, the extension dynamic compactor is rotated and is supported and rotary platform life-span.
Description
Technical Field
The utility model relates to the field of machinary, in particular to hypsokinesis control system is prevented to dynamic compactor.
Background
The dynamic compactor uses a winch to repeatedly and vertically lift a rammer, and uses high impact generated by the high fall of the rammer to tamp the foundation. The tamping energy of the dynamic compactor is the height of the falling distance x the weight of the rammer, for example: the weight of the rammer is 30T, the drop height is 15m, and the ramming energy is 30 multiplied by 15 to 450 T.m. The drop height refers to the free drop height of the ram. The working mode of the dynamic compactor comprises a unhooking mode and a non-unhooking mode, wherein the unhooking mode refers to the mode that a unhooking device is connected to a hoisting steel wire rope of the dynamic compactor, the unhooking device hooks a rammer to the height of a falling distance (namely a ramming state), the unhooking device releases the rammer (namely a ramming state), the rammer falls freely, and the unhooking device does not fall along with the rammer. The unhooking mode is that a hoisting steel wire rope of the dynamic compactor is directly connected with a rammer, after the rammer is lifted to a falling distance height (namely, in a rammer lifting state), a brake mechanism and a clutch mechanism of the winch are loosened, the rammer falls freely (namely, in a rammer releasing state), and the winch rotates reversely under the pulling force of the rammer. Because the unhooking mode is ramming the in-process at every turn, all need transfer jack-up wire rope and detacher and rammer couple the action, cause the work efficiency of unhooking mode very low, non-unhooking mode is ramming the in-process at every turn, need not transfer jack-up wire rope and couple the action, consequently, the work efficiency of non-unhooking mode is higher than the work efficiency of unhooking mode far away.
At present, no matter the dynamic compaction machine adopts a unhooking mode or a non-unhooking mode for construction, when a hammer is lifted, a forward-leaning impact force can be generated, and when the hammer is placed, a large backward-leaning impact force can be generated. In the construction process of the dynamic compactor, the hammer is repeatedly lifted and put, and the rotary support and the rotary platform of the dynamic compactor alternately bear forward tilting impact and backward tilting impact, so that the rotary support of the dynamic compactor is damaged and the rotary platform equipment is damaged.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a hypsokinesis control system is prevented to dynamic compactor reduces dynamic compactor hypsokinesis impact force, reduces the dynamic compactor and sways around, improves dynamic compactor operating stability, prevents that the dynamic compactor from rotating to support and the damage of rotary platform equipment, prolongs the dynamic compactor and rotates to support and the rotary platform life-span.
On one hand, the utility model also provides a back-tilting prevention control system of the dynamic compaction machine, which comprises a controller, a back-tilting prevention oil cylinder, an oil pump, an electric control hydraulic valve and a sensor; the anti-back-tilting hydraulic control system comprises a dynamic compaction machine, an anti-back-tilting oil cylinder, a sensor, an electric control hydraulic valve, an oil inlet and an oil outlet of the oil cylinder, wherein the anti-back-tilting oil cylinder is arranged at the tail of the dynamic compaction machine, the sensor is arranged on the anti-back-tilting oil cylinder and is used for judging whether the anti-back-tilting oil cylinder is supported on the ground in an extending mode to reach a preset recoil force or not, an A, B oil; when the electric control hydraulic valve is in the left position, the anti-back-tilting oil cylinder extends; when the electric control hydraulic valve is positioned at the middle position, the oil inlet and outlet way of the anti-back-tilting oil cylinder is locked; when the electric control hydraulic valve is in the right position, the anti-back-tilting oil cylinder retracts; the sensor is connected with the input end of the controller, and the electric control hydraulic valve is connected with the output end of the controller.
In a further technical scheme, the dynamic compactor comprises a first oil electric switch, a second oil electric switch and a third oil electric switch, wherein the first oil electric switch feeds back a hammer-lifting signal of the dynamic compactor, the second oil electric switch feeds back a walking signal of the dynamic compactor, the third oil electric switch feeds back a gyration signal of the dynamic compactor, the first oil electric switch is connected with a winch clutch hydraulic system of the dynamic compactor, the second oil electric switch is connected with a walking hydraulic system of the dynamic compactor, the third oil electric switch is connected with a gyration hydraulic system of the dynamic compactor, and the first oil electric switch, the second oil electric switch and the third oil electric switch are connected with an input end of a controller.
In a further technical scheme, the controller controls the electric control hydraulic valve to be in a left position according to a first oil-electric switch signal; the controller controls the electric control hydraulic valve to be in a middle position according to the feedback signal of the sensor; and the controller controls the electrically-controlled hydraulic valve to be in the right position according to the signal of the second oil-electric switch or the third oil-electric switch.
In a further technical scheme, a fixed seat is connected to the upper end ball of the backward tilting prevention oil cylinder, a supporting plate is connected to the lower end ball of the backward tilting prevention oil cylinder, and the fixed seat is installed at the tail of the dynamic compaction machine; a spherical cavity and a spring cavity are arranged in the fixing seat, the spring cavity is positioned above the spherical cavity, the spherical cavity is in clearance fit with a ball head at the upper end of the backward tilting prevention oil cylinder, a push rod and a spring are arranged in the spring cavity, two ends of the spring respectively abut against the push rod and the fixing seat, and the push rod abuts against the ball head at the upper end of the backward tilting prevention oil cylinder under the action force of the spring; the sensor is a proximity switch, the proximity switch is installed on the fixing seat and is located above the push rod, and the backward tilting prevention oil cylinder extends to overcome the action force of the spring to push the push rod to move upwards to trigger the proximity switch.
In a further technical scheme, the sensor is a pressure sensor, and the pressure sensor is arranged in an oil inlet oil way of the backward tilting prevention oil cylinder.
In a further technical scheme, a first hydraulic accumulator and a first check valve are arranged in an oil way for connecting a P oil port of the electric control hydraulic valve with an oil pump.
In a further technical scheme, a second hydraulic accumulator is arranged in an oil way connecting the electric control hydraulic valve and the anti-back-tipping oil cylinder.
In a further technical scheme, the two anti-back-tilting oil cylinders are included, the lower ends of the two anti-back-tilting oil cylinders are connected to the supporting plate together, the two anti-back-tilting oil cylinders are arranged at the tail of the dynamic compactor, and the two anti-back-tilting oil cylinders and the supporting plate form a triangular connecting structure.
The utility model discloses a hypsokinesis control system is prevented to dynamic compactor compares prior art beneficial effect and lies in:
when the hammer is lifted, namely the rammer is lifted, the arm support is pulled downwards by the weight of the rammer to generate a forward tilting force, and the forward tilting force is balanced by the balance force of the counter weight of the back seat of the dynamic compaction machine. At the moment, the anti-back-tilting oil cylinder extends to support the ground, when the anti-back-tilting oil cylinder extends to support the ground to reach a preset recoil force, oil supply to the anti-back-tilting oil cylinder is stopped, the anti-back-tilting oil cylinder stops extending, and an oil inlet and outlet way of the anti-back-tilting oil cylinder is locked.
When putting the hammer, the ram drops, the platform is reflected through the vaulting pole to the power behind the cantilever crane resilience, the platform produces the hypsokinesis impact force, this hypsokinesis impact force superposes with back seat counter weight hypsokinesis, support and the platform produces very big impact to the gyration, at this moment, prevent that hypsokinesis hydro-cylinder has certain recoil power to ground, and prevent that hypsokinesis hydro-cylinder business turn over oil circuit from locking, this hypsokinesis impact force is subaerial through preventing hypsokinesis hydro-cylinder effect, thereby prevent the dynamic compactor hypsokinesis, reduce the dynamic compactor and sway around, improve dynamic compactor job stabilization nature, prevent that the dynamic compactor from gyration is supported and the damage of gyration platform equipment.
After the hammer is placed for the first time, the ground can sink due to the effect of retroversion impact force, the anti-retroversion oil cylinder is not supported to land, when the hammer is lifted for the second time, oil needs to be supplied to the anti-retroversion oil cylinder again, the anti-retroversion oil cylinder extends, when the anti-retroversion oil cylinder extends and is supported on the ground to reach preset recoil force, oil supply to the anti-retroversion oil cylinder is stopped again, the anti-retroversion oil cylinder stops extending, an oil inlet and outlet way of the anti-retroversion oil cylinder is locked, and the hammer is placed for the second time. In order to prevent the backward tilting prevention oil cylinder from supporting and landing to influence the walking and the rotation of the dynamic compaction machine when the dynamic compaction machine walks or rotates, the backward tilting prevention oil cylinder is controlled to retract at the moment.
Drawings
The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:
FIG. 1 is a schematic structural view of the dynamic compactor of the present invention;
FIG. 2 is a schematic structural view of the anti-back-tilting control system of the dynamic compactor of the present invention;
fig. 3 is a schematic structural view of a backward tilting prevention cylinder according to a first embodiment of the present invention;
fig. 4 is a schematic structural view of a backward tilting prevention cylinder according to a second embodiment of the present invention.
Detailed Description
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
As shown in fig. 1, the utility model provides a dynamic compactor, including crawler chassis 100, gyration support 101, platform 102, gyration support 101 is installed on crawler chassis 100, and platform 102 is installed on gyration support 101, installs cantilever crane 103 on platform 102, installs counter weight 105 and anti hypsokinesis hydro-cylinder 4 in platform 102 rear end. When the hammer is lifted, namely the rammer 104 is lifted, the arm support 103 is pulled downwards by the weight of the rammer 104 to generate a forward tilting force, and the forward tilting force is balanced by the balance force of the dynamic compactor by the rear seat counterweight 105. When the hammer is set, the ram 104 falls off, the force of the boom 103 after rebounding is reflected to the platform 102 through the stay, and the platform 102 generates a backward tilting impact force which is superimposed with the backward tilting force of the backseat counterweight 105 to generate a large impact on the slewing support 101 and the platform 102.
As shown in fig. 2, the utility model provides a back-tilting prevention control system of a dynamic compactor, which comprises a controller, a back-tilting prevention oil cylinder 4, an oil pump 1, an electric control hydraulic valve 6 and a sensor; the anti-back-tilting oil cylinder 4 is installed at the tail of the dynamic compaction machine, the sensor is installed on the anti-back-tilting oil cylinder 4 and used for judging whether the anti-back-tilting oil cylinder 4 is supported on the ground in an extending mode to reach a preset recoil force or not, an A, B oil port of the electric control hydraulic valve 6 is connected with an oil inlet and outlet line of the anti-back-tilting oil cylinder 4, a P oil port of the electric control hydraulic valve 6 is connected with an oil output line of the oil pump 1; when the electric control hydraulic valve 6 is in the left position, the anti-back-tilting oil cylinder 4 extends; when the electric control hydraulic valve 6 is positioned at the middle position, the oil inlet and outlet way of the backward tilting prevention oil cylinder 6 is locked; when the electric control hydraulic valve 6 is in the right position, the anti-back-tilting oil cylinder 4 retracts; the sensor is connected with the input end of the controller, and the electric control hydraulic valve 6 is connected with the output end of the controller.
The dynamic compaction machine hydraulic system comprises a first oil-electricity switch, a second oil-electricity switch and a third oil-electricity switch, wherein the first oil-electricity switch feeds back a hammer signal of the dynamic compaction machine, the second oil-electricity switch feeds back a walking signal of the dynamic compaction machine, the third oil-electricity switch feeds back a gyration signal of the dynamic compaction machine, the first oil-electricity switch is connected with a winch clutch hydraulic system of the dynamic compaction machine, and when a winch clutch of the dynamic compaction machine is closed, the first oil-electricity switch is powered on. And the second oil-electricity switch is connected with a walking hydraulic system of the dynamic compaction machine, and is powered on when the dynamic compaction machine walks. And the third oil-electricity switch is connected with a rotary hydraulic system of the dynamic compactor, and is powered on when the dynamic compactor rotates. The first oil-electricity switch, the second oil-electricity switch and the third oil-electricity switch are connected with the input end of the controller.
The utility model discloses a hypsokinesis control method is as follows for dynamic compactor:
when the dynamic compactor is hammered, namely the rammer 104 is lifted, the arm support 103 is pulled downwards by the weight of the rammer 104 to generate a forward tilting force, and the forward tilting force is balanced by the balance force of the rear seat counterweight 105 of the dynamic compactor. At the moment, when a winch clutch of the dynamic compactor is closed, the first oil-electricity switch is powered on. The controller controls the electrically controlled hydraulic valve 6 to be in the left position according to the first oil-electric switch signal, so that the anti-back-tilting oil cylinder 4 is supported on the ground in an extending mode. At the moment, the controller judges that the anti-back-tipping oil cylinder 4 is supported on the ground in an extending mode to reach the preset recoil force according to the feedback signal of the sensor, oil supply to the anti-back-tipping oil cylinder 4 is stopped, the anti-back-tipping oil cylinder 4 stops extending, the electric control hydraulic valve 6 is controlled to be in the middle position, and the oil inlet and outlet way of the anti-back-tipping oil cylinder 4 is locked.
When the hammer is placed, the rammer 104 falls off, the rebound prevention back force of the arm support 103 is reflected to the platform 102 through the support rod, the platform 102 generates a backward tilting impact force, the backward tilting impact force is superposed with the backward tilting force of the backseat counterweight 105 to generate great impact on the rotary support 101 and the platform 102, at the moment, the backward tilting prevention oil cylinder 4 has certain backward sitting force on the ground, the backward tilting prevention oil cylinder 4 is locked in an oil inlet and outlet way, the backward tilting impact force acts on the ground through the backward tilting prevention oil cylinder 4, the backward tilting of the dynamic compactor is prevented, the front and back swinging of the dynamic compactor is reduced, the working stability of the dynamic compactor is improved, the equipment damage of the rotary support 101 and the platform 102 of the dynamic compactor is prevented, and the service lives of.
After the hammer is placed for the first time, the ground can sink due to the effect of retroversion impact force, the anti-retroversion oil cylinder 4 does not support and land, when the hammer is lifted for the second time, oil needs to be supplied to the anti-retroversion oil cylinder 4 again, the anti-retroversion oil cylinder 4 extends, when the anti-retroversion oil cylinder 4 extends and supports on the ground to reach the preset recoil force, oil supply to the anti-retroversion oil cylinder 4 is stopped again, the anti-retroversion oil cylinder 4 stops extending, the anti-retroversion oil cylinder 4 enters and exits an oil way and is locked, and the hammer is placed for the second time.
In order to prevent the backward tilting prevention oil cylinder 4 from supporting and landing to influence the walking and the rotation of the dynamic compactor when the dynamic compactor walks or rotates. When the dynamic compaction machine walks or rotates, the second oil-electricity switch or the third oil-electricity switch is powered on, the controller controls the electric control hydraulic valve 6 to be in the right position according to the second oil-electricity switch signal and the third oil-electricity switch signal, and the anti-back-tipping oil cylinder 4 retracts.
In the technical scheme, because the time interval between the hammer lifting and the hammer releasing of the dynamic compaction machine is short, the backward tilting prevention oil cylinder 4 is not supported by the ground in order to prevent the backward tilting prevention oil cylinder 4 from extending when the hammer is released by the dynamic compaction machine, or the backward tilting prevention oil cylinder 4 fails even if the backward tilting prevention oil cylinder is supported on the ground without reaching the preset recoil. In a further technical scheme, a first hydraulic accumulator 3 and a first check valve 2 are arranged in an oil circuit which is connected with an oil pump 1 through a P oil port of an electric control hydraulic valve 6. When the electric control hydraulic valve 6 is in the middle position or the right position, the hydraulic oil output by the oil pump 1 supplies oil to the first hydraulic accumulator 3 through the first check valve 2. When the electrically-controlled hydraulic valve 6 is in the left position, the oil pump 1 and the first hydraulic accumulator 3 supply oil to the backward tilting prevention oil cylinder 4 together, so that the backward tilting prevention oil cylinder 4 extends out quickly. Therefore, the problem that the backward tilting prevention oil cylinder 4 stretches out too slowly due to insufficient oil supply flow of the oil pump 1, and the situation that the backward tilting prevention oil cylinder 4 is not stretched and supported on the ground or supported on the ground to not reach the preset recoil force is solved.
In the technical scheme, when the hammer is placed in the dynamic compaction machine, the backward tilting impact force is very large, so that the oil seal in the backward tilting prevention oil cylinder 4 is easily damaged, the oil inlet and outlet way of the backward tilting prevention oil cylinder 4 is locked, oil can not be supplemented at a later time, and the buffering performance is poor. In order to solve the problems, improve the vibration damping and buffering performance of the anti-back-tilting oil cylinder 4 and prevent the damage of an oil seal in the anti-back-tilting oil cylinder 4, in a further technical scheme, a second hydraulic energy accumulator 5 is arranged in an oil circuit connected with the electric control hydraulic valve 6 and the anti-back-tilting oil cylinder 4. The second hydraulic accumulator 5 may be disposed at the port a of the electrically controlled hydraulic valve 6, or may be disposed at the port B of the electrically controlled hydraulic valve 6.
In the above technical scheme, the sensor can be a proximity switch or a pressure sensor, and when the sensor is the pressure sensor, the sensor can be arranged at the oil inlet of the rodless cavity of the anti-back-tilting oil cylinder 4. When the sensor is a proximity switch 43, as shown in fig. 3, a fixing seat 40 is ball-jointed at the upper end of the backward tilting prevention oil cylinder 4, a supporting plate 41 is ball-jointed at the lower end of the backward tilting prevention oil cylinder 4, and the fixing seat 40 is installed at the tail of the dynamic compaction machine; a spherical cavity 42 and a spring cavity are formed in the fixed seat 40, the spring cavity is positioned above the spherical cavity 42, the spherical cavity is in clearance fit with the ball head at the upper end of the anti-backward-tilting oil cylinder 4, a push rod 44 and a spring 45 are installed in the spring cavity, two ends of the spring 45 respectively abut against the push rod 44 and the fixed seat 40, and the push rod 44 abuts against the ball head at the upper end of the anti-backward-tilting oil cylinder 4 under the action force of the spring 45; the sensor is a proximity switch 43, the proximity switch 43 is installed on the fixed seat 40, the proximity switch 43 is positioned above the push rod 44, and the anti-backswept oil cylinder 4 extends to push the push rod 44 to move upwards to trigger the proximity switch 43 against the action force of the spring 45.
When the anti-back-tilting oil cylinder 4 is not supported by the ground, the anti-back-tilting oil cylinder 4 cannot overcome the acting force of the spring 45 to push the push rod 44 to move upwards, and only when the anti-back-tilting oil cylinder 4 is supported on the ground to reach the preset back-sitting force, the anti-back-tilting oil cylinder 4 can overcome the acting force of the spring 45 to push the push rod to move upwards to trigger the proximity switch 43, so that the proximity switch 43 can be used for judging whether the anti-back-tilting oil cylinder 4 is supported on the ground to.
In the technical scheme, the anti-back-tilting oil cylinder 4 is a single oil cylinder, the anti-back-tilting oil cylinder 4 is easy to be obliquely supported on the ground, and the structural stability is poor. In order to solve the problem, the utility model provides a new technical scheme. As shown in fig. 4, the two anti-back-tilting cylinders 4 are included, the lower ends of the two anti-back-tilting cylinders 4 are connected to the support plate 41 together, the two anti-back-tilting cylinders 4 are installed at the tail of the dynamic compactor, and the two anti-back-tilting cylinders 4 and the support plate 41 form a triangular connection structure. The triangular connecting structure ensures that the dynamic compactor is stable and reliable in backward tilting prevention.
The techniques not described above are common general knowledge of the skilled person. The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The anti-backward-tilting control system of the dynamic compaction machine is characterized by comprising a controller, an anti-backward-tilting oil cylinder (4), an oil pump (1), an electric control hydraulic valve (6) and a sensor; the anti-back-tilting oil cylinder (4) is installed at the tail of the dynamic compaction machine, the sensor is installed on the anti-back-tilting oil cylinder (4), the sensor is used for judging whether the anti-back-tilting oil cylinder (4) extends and supports on the ground to reach a preset recoil force or not, an A, B oil port of the electric control hydraulic valve (6) is connected with an oil inlet and outlet way of the anti-back-tilting oil cylinder (4), a P oil port of the electric control hydraulic valve (6) is connected with an oil outlet way of the oil pump (1), and the electric control hydraulic; when the electric control hydraulic valve (6) is in the left position, the backward tilting prevention oil cylinder (4) extends; when the electric control hydraulic valve (6) is positioned at the middle position, the oil inlet and outlet way of the backward tilting prevention oil cylinder (4) is locked; when the electric control hydraulic valve (6) is in the right position, the anti-back-tilting oil cylinder (4) retracts; the sensor is connected with the input end of the controller, and the electric control hydraulic valve (6) is connected with the output end of the controller.
2. The anti-backward-tilting control system for the dynamic compactor according to claim 1, which comprises a first oil-electricity switch, a second oil-electricity switch and a third oil-electricity switch, wherein the first oil-electricity switch feeds back a hammer-starting signal of the dynamic compactor, the second oil-electricity switch feeds back a walking signal of the dynamic compactor, the third oil-electricity switch feeds back a gyration signal of the dynamic compactor, the first oil-electricity switch is connected with a winch clutch hydraulic system of the dynamic compactor, the second oil-electricity switch is connected with a walking hydraulic system of the dynamic compactor, the third oil-electricity switch is connected with a gyration hydraulic system of the dynamic compactor, and the first oil-electricity switch, the second oil-electricity switch and the third oil-electricity switch are connected with an input end of a controller.
3. The anti-back-tilting control system of the dynamic compactor according to claim 2, wherein the controller controls the electrically controlled hydraulic valve (6) to be in a left position according to a first oil-electric switch signal; the controller controls the electric control hydraulic valve (6) to be in a neutral position according to the feedback signal of the sensor; the controller controls the electrically-controlled hydraulic valve (6) to be in the right position according to the second oil-electric switch or the third oil-electric switch signal.
4. The anti-backward-tilting control system of the dynamic compactor according to claim 1, characterized in that a fixing seat (40) is ball-jointed at the upper end of the anti-backward-tilting oil cylinder (4), a supporting plate (41) is ball-jointed at the lower end of the anti-backward-tilting oil cylinder (4), and the fixing seat (40) is installed at the tail of the dynamic compactor; a spherical cavity (42) and a spring cavity are formed in the fixed seat (40), the spring cavity is located above the spherical cavity (42), the spherical cavity (42) is in clearance fit with a ball head at the upper end of the anti-backward-tilting oil cylinder (4), a push rod (44) and a spring (45) are installed in the spring cavity, two ends of the spring (45) are respectively abutted against the push rod (44) and the fixed seat (40), and the push rod (44) is abutted against the ball head at the upper end of the anti-backward-tilting oil cylinder (4) under the action force of the spring (45); the sensor is a proximity switch (43), the proximity switch (43) is installed on the fixed seat (40), the proximity switch (43) is located above the push rod (44), and the anti-backward-tilting oil cylinder (4) extends to overcome the action force of the spring (45) to push the push rod (44) to move upwards to trigger the proximity switch (43).
5. The anti-back-tilting control system for the dynamic compaction machine according to claim 1, wherein the sensor is a pressure sensor, and the pressure sensor is installed in an oil inlet path of the anti-back-tilting oil cylinder (4).
6. The anti-backward-tilting control system of the dynamic compactor according to claim 1, wherein a first hydraulic accumulator (3) and a first check valve (2) are arranged in an oil path connecting a P oil port of the electrically controlled hydraulic valve (6) and the oil pump (1).
7. The anti-back-tilting control system of the dynamic compactor according to claim 1, wherein a second hydraulic accumulator (5) is arranged in an oil path connecting the electrically controlled hydraulic valve (6) and the anti-back-tilting oil cylinder (4).
8. The anti-back-tilting control system for the dynamic compactor according to claim 1, characterized by comprising two anti-back-tilting cylinders (4), wherein the lower ends of the two anti-back-tilting cylinders (4) are connected to a support plate (41) together, the two anti-back-tilting cylinders (4) are arranged at the tail of the dynamic compactor, and the two anti-back-tilting cylinders (4) and the support plate (41) form a triangular connection structure.
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| CN202021437615.8U CN212639774U (en) | 2020-07-18 | 2020-07-18 | Backward-tilting prevention control system of dynamic compaction machine |
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| CN202021437615.8U CN212639774U (en) | 2020-07-18 | 2020-07-18 | Backward-tilting prevention control system of dynamic compaction machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111704056A (en) * | 2020-07-18 | 2020-09-25 | 湖南博邦重工有限公司 | Anti-backward-tilting control method and system for dynamic compaction machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111704056A (en) * | 2020-07-18 | 2020-09-25 | 湖南博邦重工有限公司 | Anti-backward-tilting control method and system for dynamic compaction machine |
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