CN215634040U - Rotary motor and drilling machine control device - Google Patents
Rotary motor and drilling machine control device Download PDFInfo
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- CN215634040U CN215634040U CN202121465703.3U CN202121465703U CN215634040U CN 215634040 U CN215634040 U CN 215634040U CN 202121465703 U CN202121465703 U CN 202121465703U CN 215634040 U CN215634040 U CN 215634040U
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- 238000005553 drilling Methods 0.000 title abstract description 16
- 230000008859 change Effects 0.000 claims abstract description 16
- 230000007935 neutral effect Effects 0.000 claims description 15
- 230000000903 blocking effect Effects 0.000 claims description 12
- 230000007704 transition Effects 0.000 claims description 12
- 239000003921 oil Substances 0.000 description 248
- 239000010720 hydraulic oil Substances 0.000 description 8
- 238000010586 diagram Methods 0.000 description 7
- 230000007246 mechanism Effects 0.000 description 7
- 238000006073 displacement reaction Methods 0.000 description 6
- 230000009471 action Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses a rotary motor and a drilling machine control device, wherein the rotary motor comprises a motor body, a first oil way, a second oil way, a reversing valve, a first oil port, a second oil port and a logic valve, the first oil way and the second oil way are connected between the motor body and the reversing valve, the first oil port and the second oil port are respectively connected with the reversing valve so as to supply oil to the motor body through the reversing valve, and the logic valve is used for communicating or disconnecting the first oil port and the second oil port according to different positions of the reversing valve. In the rotary motor and the drilling machine control device, when the sleeve rotates forwards or backwards, the first oil port or the second oil port is communicated with high-pressure oil, the logic valve is closed, the first oil way and the second oil way are disconnected, and at the moment, when the sleeve stops rotating, the logic valve is opened to communicate the first oil way and the second oil way, so that the pressure of the back pressure cavity is relieved, the rotary motor is in a floating state, and the rotary motor is prevented from trapping oil. And moreover, the pressure can be gradually loaded during the rotation again, so that the impact caused by sudden change of the pressure is avoided.
Description
Technical Field
The utility model relates to the technical field of underground construction equipment, in particular to a rotary motor and a drilling machine control device.
Background
The full-rotary drilling machine drives a drilling machine rotating device to rotate by a power device, so that a drill rod with a drill bit is driven to rotate, and the drill bit cuts soil. The rotary drilling machine is used for a bored concrete pile for forming holes by using a slurry retaining wall, and the hole forming mode is a rotary hole forming mode. The full-slewing drilling machine provides pressure oil by means of a plunger pump, the pressure oil flows to a motor speed reducer through a reversing valve, and an output shaft of the speed reducer drives a sleeve to rotate and cut through multi-stage gear transmission.
As shown in fig. 1 and 2, a swing motor of a full swing drill includes a variable mechanism 11, a motor body 13, a control circuit 15, a first oil port 17, and a second oil port 19. The variable displacement mechanism 11 is connected to the motor body 13 and is used for controlling the displacement of the motor body 13. The control circuit 15 includes a first oil passage 152, a second oil passage 154, and a selector valve 156. The directional valve 156 is a three-position five-way directional valve, which includes a first port, a second port, a third port, a fourth port, and a fifth port, the first oil passage 152 is connected between the motor body 13 and the first port, the second oil passage 154 is connected between the motor body 13 and the second port, the first oil port 17 is connected to the third port, and the second oil port 19 is connected to the fourth port. In the upper position, the third port and the fifth port are communicated, in the middle position, the third port, the fourth port and the fifth port are communicated, and in the lower position, the fourth port and the fifth port are communicated.
And when the three-position five-way reversing valve returns to the middle position, the rotating sleeve stops rotary cutting. In view of the function of the three-position, five-way reversing valve being a neutral stop, the hydraulic oil of the drive chamber and the back pressure chamber will be trapped inside the motor. The sleeve can make the whole swing mechanism rotate reversely or have reverse potential energy due to elastic deformation, so that the pressure of a motor back pressure cavity is increased, the working condition of the motor is changed into the working condition of the pump, and the pressure of the back pressure cavity is increased until the overflow valve is opened for oil drainage, so that the motor is protected from overpressure. The reverse rotation of the sleeve and the valve core function of the middle cut-off function are combined to cause the pressure of the back pressure cavity to rise, so that the oil trapping phenomenon of the motor is caused; when the sleeve continues to perform rotary cutting action in the same direction, the three-position five-way reversing valve reverses, and the enclosed pressure oil causes instant pressure impact, so that the service life of the motor and the transmission structural part is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a rotary motor and a drilling machine control device which can avoid oil trapping of the motor and reduce instantaneous impact of a hydraulic system.
The utility model provides a rotary motor which comprises a motor body, a first oil path, a second oil path, a reversing valve, a first oil port, a second oil port and a logic valve, wherein the first oil path and the second oil path are connected between the motor body and the reversing valve, the first oil port and the second oil port are respectively connected with the reversing valve so as to supply oil to the motor body through the reversing valve, and the logic valve is used for communicating or disconnecting the first oil port and the second oil port according to different positions of the reversing valve.
In one embodiment, the logic valve is connected between the first oil path and the second oil path to connect or disconnect the first oil path and the second oil path.
In one embodiment, the reversing valve includes a first position, a second position and a middle position, when the reversing valve is in the first position, the first oil path is a high-pressure oil path, the first oil port is a high-pressure oil port, the second oil path is an oil return path, the second oil port is communicated with oil, the control oil port of the logic valve is communicated with the first oil port, and the logic valve is closed to disconnect the first oil path and the second oil path, so as to disconnect the first oil port and the second oil port; when the reversing valve is in the second position, the second oil path is a high-pressure oil path, the second oil port is a high-pressure oil port, the first oil path is an oil return path, the first oil port is communicated with an oil return path, the control oil port of the logic valve is communicated with the second oil port, and the logic valve is closed to disconnect the first oil path and the second oil path so as to disconnect the first oil port and the second oil port; when the reversing valve is in the neutral position, the logic valve is opened to communicate the first oil path with the second oil path, and further communicate the first oil port with the second oil port.
In one embodiment, the rotary motor further includes a blocking opening, and when the reversing valve is located at different positions, the control oil port of the logic valve is respectively communicated with the first oil port, the second oil port or the blocking opening, so as to communicate or disconnect the first oil port and the second oil port.
In one embodiment, the reversing valve is a three-position five-way valve which comprises a first port, a second port, a third port, a fourth port and a fifth port, the first oil path is connected to the first port, the second oil path is connected to the second port, the first oil port is connected to the third port, the second oil port is connected to the fourth port, and the block port is connected to the fifth port, and when the reversing valve is in the first position, the third port is communicated with the fifth port, the fourth port is disconnected with the fifth port, when the reversing valve is in the second position, the third port and the fifth port are disconnected, the fourth port and the fifth port are communicated, when the reversing valve is in the middle position, the third port, the fourth port and the fifth port are all disconnected, and a control oil port of the logic valve is connected between the fifth port and the blocking port.
In one embodiment, a throttle valve is arranged between the logic valve and the first oil path or between the logic valve and the second oil path.
In one embodiment, the logic valve further comprises an oil discharge port connected to the oil tank, and the oil discharge port is arranged in the spring cavity of the logic valve.
In one embodiment, the logic valve is an electromagnetic valve, the reversing valve includes a first position, a second position and a middle position, when the reversing valve is in the first position, the first oil path is a high-pressure oil path, the first oil port is a high-pressure oil port, the second oil path is an oil return path, the second oil port is communicated with oil, and the logic valve is closed to disconnect the first oil path and the second oil path, so as to disconnect the first oil port and the second oil port; when the reversing valve is in the second position, the second oil path is a high-pressure oil path, the second oil port is a high-pressure oil port, the first oil path is an oil return path, the first oil port is communicated with oil, and the logic valve is closed to disconnect the first oil path and the second oil path, so as to disconnect the first oil port and the second oil port; when the reversing valve is in the neutral position, the logic valve is opened to communicate the first oil path with the second oil path, and further communicate the first oil port with the second oil port; the rotary motor further comprises a blocking opening, the reversing valve is a three-position five-way valve and comprises a first opening, a second opening, a third opening, a fourth opening and a fifth opening, the first oil way is connected to the first opening, the second oil way is connected to the second opening, the first oil port is connected to the third opening, the second oil port is connected to the fourth opening, the blocking opening is connected to the fifth opening, when the reversing valve is in the first position, the third opening is communicated with the fifth opening, the fourth opening is disconnected with the fifth opening, when the reversing valve is in the second position, the third opening is disconnected with the fifth opening, the fourth opening is communicated with the fifth opening, and when the reversing valve is in the middle position, the third opening is communicated with the fourth opening is communicated with the fifth opening.
In one embodiment, the rotary motor further includes a first overflow valve and a second overflow valve, both of which are connected between the first oil path and the second oil path, a control oil port of the first overflow valve is connected to the first oil path, and a control oil port of the second overflow valve is connected to the second oil path; the rotary motor comprises a valve block assembly, the valve block assembly comprises a body valve block, a transition block, an overflow valve block and a reversing valve block, the motor body is arranged in the body valve block, the logic valve is arranged in the transition block, the first overflow valve and the second overflow valve are arranged in the overflow valve block, the reversing valve is arranged in the reversing valve block, the transition block is superposed on the body valve block, and the overflow valve block is superposed between the transition block and the reversing valve block.
The utility model also provides a drilling machine control device which comprises the rotary motor.
In the rotary motor and the drilling machine control device, when the sleeve rotates forwards or backwards, the first oil port or the second oil port is communicated with high-pressure oil, the logic valve is closed, the first oil way and the second oil way are disconnected, and at the moment, when the sleeve stops rotating, the logic valve is opened to communicate the first oil way and the second oil way, so that the pressure of the back pressure cavity is relieved, the rotary motor is in a floating state, and the rotary motor is prevented from trapping oil. And moreover, the pressure can be gradually loaded during the rotation again, so that the impact caused by sudden change of the pressure is avoided.
Drawings
Fig. 1 is a schematic diagram of a hydraulic oil path structure of a rotary motor.
Fig. 2 is a schematic valve spool function diagram of the reversing valve of the rotary motor of fig. 1.
Fig. 3 is a schematic diagram of a hydraulic oil path structure of a rotary motor according to an embodiment of the present invention.
Fig. 4 is a schematic valve core function diagram of a reversing valve of the swing motor shown in fig. 3.
Fig. 5 is a schematic diagram of a hydraulic oil passage with the swing motor shown in fig. 3 at the upper position.
Fig. 6 is a schematic view of a hydraulic circuit in which the swing motor shown in fig. 3 is down.
Fig. 7 is a schematic view of a hydraulic oil path structure of a swing motor according to another embodiment of the present invention.
Fig. 8 is a schematic valve core function diagram of a reversing valve of the swing motor shown in fig. 7.
Fig. 9 is a schematic diagram of a hydraulic oil passage with the swing motor shown in fig. 7 at the upper position.
Fig. 10 is a schematic view of a hydraulic oil passage with the swing motor shown in fig. 7 at the lower position.
Fig. 11 is a schematic view of a hydraulic oil path structure of a swing motor according to still another embodiment of the present invention.
Detailed Description
To further illustrate the technical means and effects of the present invention for achieving the intended purpose of the utility model, the following detailed description is given to the specific embodiments, structures, features and effects of the present invention in conjunction with the accompanying drawings and examples.
As shown in fig. 3 and 4, the swing motor according to an embodiment of the present invention includes a variable displacement mechanism 31, a motor body 33, a first oil passage 35, a second oil passage 37, a selector valve 39, a first oil port 41, a second oil port 43, a block port 44, and a logic valve 45. The variable mechanism 31 is used to adjust the displacement of the motor body 33. The first and second oil passages 35 and 37 are connected between the motor body 33 and the direction switching valve 39, and the first and second oil ports 41 and 43 are respectively connected to the direction switching valve 39 to supply oil to the motor body 33 through the direction switching valve 39. The logic valve 45 is connected between the first oil path 35 and the second oil path 37 to connect or disconnect the first oil path 35 and the second oil path 37 and further to connect or disconnect the first oil port 41 and the second oil port 43, and when the reversing valve 39 is located at different positions, the logic valve 45 connects or disconnects the first oil port 41 and the second oil port 43. In this embodiment, the logic valve 45 may be a hydraulic control valve, and when the reversing valve 39 is located at different positions, the control oil ports of the logic valve 45 are respectively communicated with the first oil port 41, the second oil port 43 or the blocking port 44, so as to communicate or disconnect the first oil port 41 and the second oil port 43.
In this embodiment, the diverter valve 39 includes a first position (e.g., the up position shown in FIG. 4), a second position (e.g., the down position shown in FIG. 4), and a neutral position. Referring to fig. 5, when the direction change valve 39 is at the first position, the high-pressure oil enters the rotary motor from the first oil port 41, and then enters the first oil path 35 through the direction change valve 39 and then reaches the motor body 33, the motor body 33 is driven to rotate in the forward direction, the casing of the drilling machine is driven to rotate in the forward direction (for example, rotate counterclockwise), the second oil path 37 is an oil return path, the second oil port 43 is communicated with the oil return path, the control oil port of the logic valve 45 is communicated with the first oil port 41, the logic valve 45 is closed, the first oil path 35 and the second oil path 37 are disconnected, and the first oil port 41 and the second oil port 43 are disconnected. Referring to fig. 6, when the direction-changing valve 39 is at the second position, high-pressure oil enters the rotary motor from the second oil port 43, enters the second oil path 37 through the direction-changing valve 39, and then reaches the motor body 33, drives the motor body 33 to rotate reversely, and drives the drill casing to rotate reversely (for example, rotate clockwise), the first oil path 35 is an oil return path, the first oil port 41 is communicated with the oil return path, and at this time, the control oil port of the logic valve 45 is communicated with the second oil port 43, so that the logic valve 45 is closed to disconnect the first oil path 35 and the second oil path 37, and further disconnect the first oil port 41 and the second oil port 43. Referring to fig. 3, when the direction valve 39 is at the neutral position, the control port of the logic valve 45 is communicated with the blocking port 44, so that the logic valve 45 is opened to communicate the first oil passage 35 with the second oil passage 37 and further communicate the first oil port 41 with the second oil port 43, and the rotary motor is in a floating state.
In this embodiment, the directional valve 39 is a three-position, five-way valve that includes a first port 391, a second port 392, a third port 393, a fourth port 394, and a fifth port 395. The first oil passage 35 is connected to the first port 391, the second oil passage 37 is connected to the second port 392, the first oil port 41 is connected to the third port 393, the second oil port 43 is connected to the fourth port 394, the block port 44 is connected to the fifth port 395, and when the direction change valve 39 is in the first position, the third port 393 and the fifth port 395 are connected, the fourth port 394 and the fifth port 395 are disconnected, when the direction change valve 39 is in the second position, the third port 393 and the fifth port 395 are disconnected, the fourth port 394 and the fifth port 395 are connected, and when the direction change valve 39 is in the neutral position, the third port 393, the fourth port 394 and the fifth port 395 are all disconnected. The control port of the logic valve 45 is connected between the fifth port 395 and the choke 44. It is understood that the oil path between the third port 393 and the first port 41 is a third oil path, the oil path between the fourth port 394 and the second port 43 is a fourth oil path, and the logic valve 45 may be connected between the third oil path and the fourth oil path as long as the logic valve 45 can disconnect or connect the first port 41 and the second port 43 according to the position of the direction valve 39.
Specifically, the direction valve 39 may be a pilot operated valve, and control ports of the direction valve 39 may be connected to the first and second ports 43 and 45. It will be appreciated that the directional valve 39 may also be a solenoid valve, with the position of the directional valve 39 being controlled by an electrical signal.
In this embodiment, the logic valve 45 further includes an oil discharge port connected to the oil tank, and the oil discharge port is disposed in the spring cavity of the logic valve 45.
Specifically, the logic valve 45 may be a two-position two-way valve, and two oil ports of the logic valve 45 are connected to the first oil passage 35 and the second oil passage 37, respectively.
Specifically, a throttle valve may also be provided between the logic valve 45 and the first oil passage 35 or the second oil passage 37.
In this embodiment, the rotary motor further includes a first relief valve 47 and a second relief valve 48, both the first relief valve 47 and the second relief valve 48 are connected between the first oil passage 35 and the second oil passage 37, a control port of the first relief valve 47 is connected to the first oil passage 35, and a control port of the second relief valve 48 is connected to the second oil passage 37.
In the present embodiment, the variable displacement mechanism 31 is connected to a feedback port 51 of the swing motor, and controls the inclination of the swash plate of the motor main body 33 by the pressure of the feedback port 51, thereby controlling the displacement of the motor main body 33.
In this embodiment, the first oil port 41 and the second oil port 43 are connected to an oil pump through a multi-way valve, and the main pump supplies oil to the swing motor to drive the swing motor to swing.
In this embodiment, the rotary motor includes a valve block assembly, the valve block assembly includes a feedback block 301, a control valve block 302, a body valve block 303, a transition block 304, an overflow valve block 306, and a direction changing valve block 308, the feedback port 51 is provided in the feedback block 301, the variable mechanism 31 is provided in the control valve block 302, the motor body 33 is provided in the body valve block 303, the logic valve 45 is provided in the transition block 304, the first overflow valve 47 and the second overflow valve 48 are provided in the overflow valve block 306, the direction changing valve 39 is provided in the direction changing valve block 308, the transition block 304 is superimposed on the body valve block 303, and the overflow valve block 306 is superimposed between the transition block 304 and the direction changing valve block 308.
In the present embodiment, the swing motor is a bidirectional swing motor that can rotate in the forward and reverse directions.
In the rotary motor of the utility model, when the sleeve rotates forwards or backwards, high-pressure oil is introduced into the first oil port 41 or the second oil port 43, the logic valve 45 is in the right position (namely the logic valve 45 is closed) under the action of pilot oil of the first oil port 41 or the second oil port 43, the first oil path 35 and the second oil path 37 are disconnected, at the moment, when the sleeve stops rotating, the logic valve 45 is in the left position (namely the logic valve 45 is opened) by the self spring force, the first oil path 35 and the second oil path 37 are communicated, so that the pressure of a back pressure cavity is relieved, the rotary motor is in a floating state, and the rotary motor is prevented from trapping oil. And moreover, the pressure can be gradually loaded during the rotation again, so that the impact caused by sudden change of the pressure is avoided.
The utility model also discloses a drilling machine control device which comprises the rotary motor. The drilling machine control device also comprises an oil pump and a multi-way valve, wherein the multi-way valve is connected between the oil pump and the rotary motor, and the oil pump supplies oil to the rotary motor so as to drive the rotary motor to rotate.
Referring to fig. 7, the present invention further provides a rotary motor according to another embodiment. The structure of the rotary motor of the present embodiment is substantially the same as that of the rotary motor of the embodiment shown in fig. 3, except that in the present embodiment, the logic valve 45 is an electromagnetic valve, and the state of the logic valve 45 is electrically controlled to connect or disconnect the first oil passage 35 and the second oil passage 37. Correspondingly, the structure of the direction valve 39 in the present embodiment is also different from the structure of the direction valve 39 shown in fig. 4.
In this embodiment, the logic valve 45 may be a two-position two-way solenoid valve, and two oil ports of the logic valve 45 are respectively connected to the first oil path 35 and the second oil path 37. The electrical signal controls the logic valve 45 to switch between left and right positions.
In the embodiment, referring to fig. 8, the direction-changing valve 39 is a three-position five-way valve, which includes a first port 391, a second port 392, a third port 393, a fourth port 394 and a fifth port 395. The first oil passage 35 is connected to the first port 391, the second oil passage 37 is connected to the second port 392, the first oil port 41 is connected to the third port 393, the second oil port 43 is connected to the fourth port 394, the block port 44 is connected to the fifth port 395, and when the direction change valve 39 is in the first position, the third port 393 and the fifth port 395 are connected, the fourth port 394 and the fifth port 395 are disconnected, when the direction change valve 39 is in the second position, the third port 393 and the fifth port 395 are disconnected, the fourth port 394 and the fifth port 395 are connected, and when the direction change valve 39 is in the neutral position, the third port 393, the fourth port 394 and the fifth port 395 are all connected.
In this embodiment, the diverter valve 39 includes a first position (e.g., the up position shown in FIG. 9), a second position (e.g., the down position shown in FIG. 10), and a neutral position. Referring to fig. 9, when the reversing valve 39 is in the first position, the high-pressure oil enters the rotary motor from the first oil port 41, and then enters the first oil path 35 through the reversing valve 39 and then reaches the motor body 33, the motor body 33 is driven to rotate in the forward direction, the casing of the drilling machine is driven to rotate in the forward direction (for example, rotate counterclockwise), the second oil path 37 is an oil return path, the second oil port 43 is communicated with the oil return path, and at this time, the logic valve 45 is controlled to be in the left position by an electric signal, so that the logic valve 45 is closed to disconnect the first oil path 35 and the second oil path 37, and further disconnect the first oil port 41 and the second oil port 43. Referring to fig. 10, when the direction change valve 39 is at the second position, high-pressure oil enters the rotary motor from the second oil port 43, and then enters the second oil path 37 through the direction change valve 39 and then reaches the motor body 33, the motor body 33 is driven to rotate reversely, so as to drive the drill casing to rotate reversely (for example, rotate clockwise), the first oil path 35 is an oil return path, the first oil port 41 is communicated with oil, at this time, the logic valve 45 is controlled by an electric signal to be at the left position, so that the logic valve 45 is closed to disconnect the first oil path 35 and the second oil path 37, and further disconnect the first oil port 41 and the second oil port 43. Referring to fig. 7, when the direction valve 39 is at the neutral position, the logic valve 45 is de-energized, the logic valve 45 is at the right position under the action of its own spring force, so that the logic valve 45 is opened to communicate the first oil passage 35 with the second oil passage 37 and further communicate the first oil port 41 with the second oil port 43, and the rotary motor is in a floating state.
In yet another embodiment of the present invention, as shown in FIG. 11, the neutral position of the logic valve 45 of FIG. 7 may be modified, while the control logic is modified such that the swing motor stops when the logic valve 45 is energized and the swing motor swings when the logic valve 45 is de-energized.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the utility model as defined by the appended claims.
Claims (10)
1. A rotary motor, comprising a motor body (33), a first oil path (35), a second oil path (37), a reversing valve (39), a first oil port (41), a second oil port (43), and a logic valve (45), wherein the first oil path (35) and the second oil path (37) are connected between the motor body (33) and the reversing valve (39), the first oil port (41) and the second oil port (43) are respectively connected to the reversing valve (39) to supply oil to the motor body (33) through the reversing valve (39), and the logic valve (45) connects or disconnects the first oil port (41) and the second oil port (43) according to different positions of the reversing valve (39).
2. A swing motor as claimed in claim 1, wherein the logic valve (45) is connected between the first oil passage (35) and the second oil passage (37) to communicate or disconnect the first oil passage (35) and the second oil passage (37).
3. The rotary motor of claim 2, wherein the direction valve (39) comprises a first position, a second position and a middle position, when the direction valve (39) is in the first position, the first oil path (35) is a high-pressure oil path, the first oil port (41) is a high-pressure oil port, the second oil path (37) is an oil return path, the second oil port (43) is communicated with oil, a control oil port of the logic valve (45) is communicated with the first oil port (41), the logic valve (45) is closed to disconnect the first oil path (35) from the second oil path (37), and further disconnect the first oil port (41) from the second oil port (43); when the reversing valve (39) is in the second position, the second oil path (37) is a high-pressure oil path, the second oil port (43) is a high-pressure oil port, the first oil path (35) is an oil return path, the first oil port (41) is communicated with oil return, a control oil port of the logic valve (45) is communicated with the second oil port (43), and the logic valve (45) is closed to disconnect the first oil path (35) and the second oil path (37) and further disconnect the first oil port (41) and the second oil port (43); when the reversing valve (39) is in the neutral position, the logic valve (45) is opened to communicate the first oil passage (35) with the second oil passage (37), and further communicate the first oil port (41) with the second oil port (43).
4. The rotary motor of claim 3, further comprising a blocking port (44), wherein when the reversing valve (39) is located at different positions, the control port of the logic valve (45) is respectively communicated with the first port (41), the second port (43) or the blocking port (44), and further communicated with or disconnected from the first port (41) and the second port (43).
5. A rotary motor according to claim 4, wherein the direction change valve (39) is a three-position five-way valve including a first port (391), a second port (392), a third port (393), a fourth port (394) and a fifth port (395), the first oil passage (35) is connected to the first port (391), the second oil passage (37) is connected to the second port (392), the first oil port (41) is connected to the third port (393), the second oil port (43) is connected to the fourth port (394), the block port (44) is connected to the fifth port (395), and the direction change valve (39) is in the first position, the third port (393) and the fifth port (395) are communicated, the fourth port (394) and the fifth port are disconnected, the direction change valve (39) is in the second position, the third port (393) and the fifth port are disconnected, the fourth port (394) is communicated with the fifth port (395), when the reversing valve (39) is in the neutral position, the third port (393), the fourth port (394) and the fifth port (395) are all disconnected, and a control oil port of the logic valve (45) is connected between the fifth port (395) and the blocking port (44).
6. A rotary motor according to claim 5, wherein a throttle valve is provided between the logic valve (45) and the first oil passage (35) or between the logic valve (45) and the second oil passage (37).
7. A rotary motor according to claim 1, wherein the logic valve (45) further comprises an oil discharge port connected to an oil tank, the oil discharge port being provided in a spring chamber of the logic valve (45).
8. The rotary motor according to claim 2, wherein the logic valve (45) is a solenoid valve, the direction valve (39) includes a first position, a second position and a neutral position, when the direction valve (39) is in the first position, the first oil path (35) is a high-pressure oil path, the first oil port (41) is a high-pressure oil path, the second oil path (37) is an oil return path, the second oil port (43) is communicated with oil, and the logic valve (45) is closed to disconnect the first oil path (35) from the second oil path (37) and further disconnect the first oil port (41) from the second oil port (43); when the reversing valve (39) is in the second position, the second oil path (37) is a high-pressure oil path, the second oil port (43) is a high-pressure oil port, the first oil path (35) is an oil return path, the first oil port (41) is communicated with oil return, the logic valve (45) is closed to disconnect the first oil path (35) and the second oil path (37), and further disconnect the first oil port (41) and the second oil port (43); when the reversing valve (39) is in the neutral position, the logic valve (45) is opened to communicate the first oil passage (35) with the second oil passage (37) and further communicate the first oil port (41) with the second oil port (43); the rotary motor further comprises a blocking port (44), the reversing valve (39) is a three-position five-way valve and comprises a first port (391), a second port (392), a third port (393), a fourth port (394) and a fifth port (395), the first oil path (35) is connected to the first port (391), the second oil path (37) is connected to the second port (392), the first oil port (41) is connected to the third port (393), the second oil port (43) is connected to the fourth port (395), the blocking port (44) is connected to the fifth port (395), when the reversing valve (39) is in the first position, the third port (393) is communicated with the fifth port (395), the fourth port (394) is disconnected with the fifth port (395), when the reversing valve (39) is in the second position, the third port (393) is disconnected with the fifth port (395), the fourth port (394) and the fifth port (395) are communicated, and when the direction switching valve (39) is in a neutral position, the third port (393), the fourth port (394) and the fifth port (395) are communicated.
9. A rotary motor according to claim 1, further comprising a first relief valve (47) and a second relief valve (48), both the first relief valve (47) and the second relief valve (48) being connected between the first oil passage (35) and the second oil passage (37), a control port of the first relief valve (47) being connected to the first oil passage (35), a control port of the second relief valve (48) being connected to the second oil passage (37); the rotary motor comprises a valve block assembly, the valve block assembly comprises a body valve block (303), a transition block (304), an overflow valve block (306) and a reversing valve block (308), the motor body (33) is arranged in the body valve block (303), the logic valve (45) is arranged in the transition block (304), the first overflow valve (47) and the second overflow valve (48) are arranged in the overflow valve block (306), the reversing valve (39) is arranged in the reversing valve block (308), the transition block (304) is superposed on the body valve block (303), and the overflow valve block (306) is superposed between the transition block (304) and the reversing valve block (308).
10. A drill control device, characterized by comprising a swing motor according to any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121465703.3U CN215634040U (en) | 2021-06-29 | 2021-06-29 | Rotary motor and drilling machine control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121465703.3U CN215634040U (en) | 2021-06-29 | 2021-06-29 | Rotary motor and drilling machine control device |
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| Publication Number | Publication Date |
|---|---|
| CN215634040U true CN215634040U (en) | 2022-01-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121465703.3U Withdrawn - After Issue CN215634040U (en) | 2021-06-29 | 2021-06-29 | Rotary motor and drilling machine control device |
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| CN (1) | CN215634040U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113280012A (en) * | 2021-06-29 | 2021-08-20 | 上海中联重科桩工机械有限公司 | Rotary motor and drilling machine control device |
-
2021
- 2021-06-29 CN CN202121465703.3U patent/CN215634040U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113280012A (en) * | 2021-06-29 | 2021-08-20 | 上海中联重科桩工机械有限公司 | Rotary motor and drilling machine control device |
| CN113280012B (en) * | 2021-06-29 | 2024-07-16 | 上海中联重科桩工机械有限公司 | Rotary motor and drilling machine control device |
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