CN220726706U - Hydraulic device for limiting screwing torque of drill rod of rock drill - Google Patents
Hydraulic device for limiting screwing torque of drill rod of rock drill Download PDFInfo
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- CN220726706U CN220726706U CN202322290898.8U CN202322290898U CN220726706U CN 220726706 U CN220726706 U CN 220726706U CN 202322290898 U CN202322290898 U CN 202322290898U CN 220726706 U CN220726706 U CN 220726706U
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- 239000011435 rock Substances 0.000 title claims abstract description 68
- 238000005553 drilling Methods 0.000 claims abstract description 40
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 31
- 239000003921 oil Substances 0.000 claims abstract description 21
- 230000033228 biological regulation Effects 0.000 claims abstract 5
- 230000006698 induction Effects 0.000 claims description 2
- 244000309464 bull Species 0.000 abstract description 7
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 230000004044 response Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 7
- 230000009471 action Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000004575 stone Substances 0.000 description 3
- 238000005065 mining Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model relates to the technical field of rock drills, in particular to a hydraulic device for limiting the tightening torque of a drill rod of a rock drill, which comprises a hydraulic rock drill body, wherein a pressure sensor is fixedly arranged in the hydraulic rock drill body, a stepping motor is fixedly arranged on the left side of a hydraulic oil tank, a turntable is rotatably connected in an adjusting groove plate, and a hydraulic motor is fixedly arranged on the inner top wall of the hydraulic rock drill body. This rock drill restriction drilling rod tightening torque hydraulic means pumps hydraulic oil into hydraulic tank through external hydraulic system, and the power of hydraulic oil can be at first strikeed the filter screen structure this moment, and the filter screen extrudees the spring along the spring beam left side and slides, and contact pressure sensor's response end, after reaching the pressure threshold value of settlement, outwards connect control system transmission signal, control step motor drive bull stick drive carousel at the inboard rotation of adjusting the frid, and regulation hydraulic oil flow, and then control oil pressure, control hydraulic motor's hydraulic power.
Description
Technical Field
The utility model relates to the technical field of rock drills, in particular to a hydraulic device for limiting the tightening torque of a drill rod of a rock drill.
Background
The rock drill is used for drilling blastholes in rock stratum so as to put explosive into the blastholes to burst rock, is convenient for tools for directly mining the rock, is common in the field of rock mining or other stone engineering, can be changed into a breaker for breaking hard layers such as concrete and assisting stone engineering stone breaking, and is used for working through a drill rod structure, so that the rock drill needs to be dismantled when the drill rod is replaced, and a motor device is used for unscrewing or screwing a thread structure between drill rods.
However, when the hydraulic rock drill in the prior art is used for connecting and disconnecting the rotating rod, the hydraulic power of the motor is not limited conveniently, so that the screwing torque of the drill rod screw thread is too large when the drill rod structure is driven to rotate and screw, the drill rod screw thread layer structure is damaged, and the normal operation of drilling of the drill rod is easily influenced, and the hydraulic device for limiting the screwing torque of the drill rod of the rock drill is provided.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model provides a hydraulic device for limiting the screwing torque of a drill rod of a rock drill, which has the advantage of conveniently adjusting the hydraulic power of a motor, and solves the problem that the part of the hydraulic rock drill in the background art is easy to cause overlarge screwing torque of a drill rod structure due to inconvenient limiting of the hydraulic power of the motor.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the hydraulic device comprises a hydraulic rock drilling machine body, wherein an oil pressure adjusting structure is arranged in the hydraulic rock drilling machine body, a drill shank drill rod is movably arranged on the left side of the hydraulic rock drilling machine body, a drill shank bearing is fixedly connected to the outer part of the drill shank drill rod, and a piston punch rod is movably arranged in the hydraulic rock drilling machine body;
the hydraulic pressure adjusting structure comprises a hydraulic oil tank, a pressure sensor, a filter screen, a stepping motor, an adjusting groove plate, a rotary table, a hydraulic motor, a main gear shaft, a pressure energy accumulator and a reversing valve core, wherein the hydraulic oil tank is fixedly connected to the top of a hydraulic rock drilling machine body, the pressure sensor is fixedly installed in the hydraulic rock drilling machine body, the filter screen is movably connected to the hydraulic rock drilling machine body, the stepping motor is fixedly installed on the left side of the hydraulic oil tank, the adjusting groove plate is fixedly connected to the hydraulic rock drilling machine body, the rotary table is rotatably connected to the adjusting groove plate, the hydraulic motor is fixedly installed on the inner top wall of the hydraulic rock drilling machine body, the main gear shaft is fixedly connected to the output end of the hydraulic motor, the pressure energy accumulator is fixedly installed on the bottom of the hydraulic rock drilling machine body, and the reversing valve core is fixedly installed in the hydraulic rock drilling machine body.
Further, the right side fixedly connected with oil feed pipe of hydraulic tank, the external hydraulic system that has of right-hand member of oil feed pipe, the bottom fixedly connected with oil delivery pipe of hydraulic tank, the bottom of oil delivery pipe and hydraulic motor's right side fixed connection.
Further, the number of the pressure sensors is two, the right sides of the two pressure sensors are respectively provided with a contact induction end, the inside of the hydraulic rock drilling machine body is fixedly connected with two spring rods, and the two spring rods are of a spring and screw rod sleeved structure.
Further, the top and the bottom of the filter screen are respectively connected with the outer parts of the two screw rods in a sliding way, and the top and the bottom of the filter screen are respectively connected with the right ends of the two springs in a fixed way.
Further, the adjusting groove plate is of a circular ring structure, a semicircular cavity is formed in the inner side of the adjusting groove plate, the rotary disc is of a semicircular structure, and the size of the rotary disc is identical to that of the cavity structure.
Further, the inboard rotation of adjusting the frid is connected with the axostylus axostyle, the outside fixed connection of carousel and axostylus axostyle, step motor's output fixedly connected with bull stick, the right-hand member of bull stick and the left end fixed connection of axostylus axostyle.
Advantageous effects
Compared with the prior art, the technical scheme of the application has the following beneficial effects:
this rock drill restriction drilling rod tightening torque hydraulic means, pump hydraulic oil into hydraulic tank through external hydraulic system, the power of hydraulic oil can at this moment impact the filter screen structure at first greatly, the filter screen extrudees the spring along the spring beam left side and slides, the left side contact pressure sensor's of filter screen response end, after reaching the pressure threshold value of settlement, outwards connect control system transmission signal, control step motor drive bull stick drives the carousel and is adjusting the inboard rotation of frid, adjust hydraulic oil flow, and then control oil pressure, control hydraulic motor's hydraulic power, realize adjusting motor and exert the effect of moment of torsion to the bull stick structure.
Drawings
FIG. 1 is a three-dimensional perspective view of the structure of the present utility model;
FIG. 2 is a cross-sectional view of the structure of the present utility model;
FIG. 3 is a left side view of the structural adjustment channel plate of the present utility model;
FIG. 4 is an enlarged schematic view of the structure of the present utility model at A in FIG. 2.
In the figure: 1. a hydraulic rock drilling machine body; 2. an oil pressure adjusting structure; 201. a hydraulic oil tank; 202. a pressure sensor; 203. a filter screen; 204. a stepping motor; 205. adjusting the groove plate; 206. a turntable; 207. a hydraulic motor; 208. a master gear shaft; 209. a pressure accumulator; 210. a reversing valve core; 3. a drill rod with a drill shank; 4. a drill shank bearing; 5. a piston ram.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-4, a hydraulic device for limiting the tightening torque of a drill rod of a rock drill comprises a hydraulic rock drill body 1, wherein an oil pressure adjusting structure 2 is arranged in the hydraulic rock drill body 1, a drill shank drill rod 3 is movably arranged on the left side of the hydraulic rock drill body 1, a thread layer is arranged on the drill shank drill rod 3, the drill rods are conveniently connected through threads, a drill shank bearing 4 is fixedly connected to the outer part of the drill shank drill rod 3, the drill shank bearing 4 provides a guiding function for the rotation of the drill shank drill rod 3, a piston punch rod 5 is movably arranged in the hydraulic rock drill body 1, and the piston punch rod 5 provides impact power for the drill shank drill rod 3.
The oil pressure adjusting structure 2 comprises a hydraulic oil tank 201, a pressure sensor 202, a filter screen 203, a stepping motor 204, an adjusting groove plate 205, a rotary table 206, a hydraulic motor 207, a main gear shaft 208, a pressure accumulator 209 and a reversing valve core 210, wherein the hydraulic oil tank 201 is fixedly connected to the top of the hydraulic rock drilling machine body 1, the hydraulic oil tank 201 is a transit tank for hydraulic oil, the pressure sensor 202 is fixedly arranged in the hydraulic rock drilling machine body 1, the pressure sensor 202 receives the pressure received by the filter screen 203 and transmits signals to an external control system, the filter screen 203 is movably connected to the inside of the hydraulic rock drilling machine body 1, the stepping motor 204 is fixedly arranged on the left side of the hydraulic oil tank 201, the stepping motor 204 is electrically connected with the control system, the adjusting groove plate 205 is fixedly connected to the inside of the hydraulic rock drilling machine body 1, the rotary table 206 is rotatably connected to the inside of the adjusting groove plate 205, an oil hole is formed in the rotary table 206, the inside of the hydraulic rock drilling machine body 1 is fixedly arranged on the inner top wall 208 of the hydraulic rock drilling machine, the main gear shaft 208 is fixedly connected to the output end of the hydraulic motor 207, the hydraulic motor 207 drives the main gear shaft 208 to rotate, the main gear shaft 208 is meshed with the external tooth layer of the main gear shaft 208, the pressure accumulator is meshed with the external tooth layer of the piston 3, the piston is fixedly arranged at the bottom of the reversing valve core 210 of the hydraulic rock drilling machine body 1, and the reversing valve core is fixedly arranged in the direction of the reversing valve core 210, and the piston is fixedly arranged in the direction of the reversing valve core 210.
In practice, the method is carried out according to the following steps:
1) Firstly, pumping hydraulic oil into a hydraulic oil tank 201, filtering by a filter screen 203 and receiving pressure;
2) The filter screen 203 then presses the spring rod to transmit pressure to the sensing end of the pressure sensor 202;
3) Transmitting a pressure threshold signal to an external control system through a pressure sensor 202;
4) Finally, the control system controls the stepping motor 204 to drive the rotating rod to drive the turntable 206 to rotate, controls oil pressure, and further adjusts the hydraulic power of the hydraulic motor 207.
Specifically, according to fig. 2, the hydraulic system pumps hydraulic oil through an oil inlet pipe on the right side of the hydraulic oil tank 201, and transmits hydraulic power to the hydraulic motor 207 through an oil delivery pipe on the bottom of the hydraulic oil tank 201, so as to drive the main gear shaft 208 to rotate, and a slag discharge port is formed on the back side of the hydraulic oil tank 201.
Specifically, as shown in fig. 2 and 4, the filter 203 is impacted on the spring rod to move leftwards, presses the spring and contacts the sensing end on the right side of the pressure sensor 202, transmits pressure, and transmits a pressure signal to the external control system when the pressure threshold is reached.
Specifically, as shown in fig. 2 and 3, the control system controls the stepper motor 204 to drive the rotating rod to rotate, drives the turntable 206 to rotate on the inner side of the adjusting groove plate 205, controls the opening size of the adjusting groove plate 205, and adjusts the oil pressure flow.
In summary, this rock drill limits drilling rod and screws up moment of torsion hydraulic means, pump hydraulic oil into hydraulic tank 201 through external hydraulic system, the power of hydraulic oil is great at this moment can at first strike filter screen 203 structure, filter screen 203 extrudees the spring along the spring beam left side, the left side of filter screen 203 contacts the sensing end of pressure sensor 202, after reaching the pressure threshold value of settlement, outwards connect control system transmission signal, control step motor 204 drive bull stick drive carousel 206 is at the inboard rotation of adjusting the frid 205, adjust hydraulic oil flow, and then control oil pressure, control hydraulic motor 207's hydraulic power, realize adjusting motor and exert the effect of moment of torsion to the bull stick structure, partial hydraulic rock drill among the above-mentioned background art because inconvenient restriction motor hydraulic power, cause the too big problem of drilling rod structure's screwing up moment easily.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a rock drill limit drilling rod tightening torque hydraulic means, includes hydraulic rock drill organism (1), its characterized in that: the hydraulic rock drilling machine comprises a hydraulic rock drilling machine body (1), wherein an oil pressure adjusting structure (2) is arranged in the hydraulic rock drilling machine body (1), a drill shank drill rod (3) is movably arranged on the left side of the hydraulic rock drilling machine body (1), a drill shank bearing (4) is fixedly connected to the outer part of the drill shank drill rod (3), and a piston punch rod (5) is movably arranged in the hydraulic rock drilling machine body (1);
the hydraulic pressure regulation structure (2) comprises a hydraulic oil tank (201), a pressure sensor (202), a filter screen (203), a stepping motor (204), a regulation trough plate (205), a rotary table (206), a hydraulic motor (207), a main gear shaft (208), a pressure energy accumulator (209) and a reversing valve core (210), the hydraulic oil tank (201) is fixedly connected to the top of the hydraulic rock drilling machine body (1), the pressure sensor (202) is fixedly arranged in the hydraulic rock drilling machine body (1), the filter screen (203) is movably connected to the inside of the hydraulic rock drilling machine body (1), the stepping motor (204) is fixedly arranged on the left side of the hydraulic oil tank (201), the regulation trough plate (205) is fixedly connected to the inside of the hydraulic rock drilling machine body (1), the rotary table (206) is rotatably connected to the inside of the regulation trough plate (205), the hydraulic motor (207) is fixedly arranged on the inner top wall of the hydraulic rock drilling machine body (1), the main gear shaft (208) is fixedly connected to the output end of the hydraulic motor (207), the pressure energy accumulator (209) is fixedly arranged on the bottom of the hydraulic rock drilling machine body (1), and the reversing valve core (210) is fixedly arranged in the hydraulic rock drilling machine body (1).
2. A hydraulic device for limiting the tightening torque of a drill rod of a rock drill according to claim 1, wherein: the hydraulic oil tank is characterized in that an oil inlet pipe is fixedly connected to the right side of the hydraulic oil tank (201), a hydraulic system is externally connected to the right end of the oil inlet pipe, an oil delivery pipe is fixedly connected to the bottom of the hydraulic oil tank (201), and the bottom of the oil delivery pipe is fixedly connected to the right side of the hydraulic motor (207).
3. A hydraulic device for limiting the tightening torque of a drill rod of a rock drill according to claim 1, wherein: the number of the pressure sensors (202) is two, the right sides of the two pressure sensors (202) are respectively provided with a contact induction end, the inside of the hydraulic rock drilling machine body (1) is fixedly connected with two spring rods, and the two spring rods are of a spring and screw rod sleeved structure.
4. A hydraulic device for limiting the tightening torque of a drill rod for a rock drill according to claim 3, wherein: the top and the bottom of the filter screen (203) are respectively connected with the outer parts of the two screw rods in a sliding way, and the top and the bottom of the filter screen (203) are respectively connected with the right ends of the two springs in a fixed way.
5. A hydraulic device for limiting the tightening torque of a drill rod of a rock drill according to claim 1, wherein: the adjusting groove plate (205) is of a circular ring structure, a semicircular cavity is formed in the inner side of the adjusting groove plate (205), the rotary disc (206) is of a semicircular structure, and the size of the rotary disc (206) is identical to that of the cavity structure.
6. A hydraulic device for limiting the tightening torque of a drill rod of a rock drill according to claim 1, wherein: the inner side of the adjusting groove plate (205) is rotationally connected with a shaft lever, the rotary table (206) is fixedly connected with the outer part of the shaft lever, the output end of the stepping motor (204) is fixedly connected with a rotary rod, and the right end of the rotary rod is fixedly connected with the left end of the shaft lever.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322290898.8U CN220726706U (en) | 2023-08-25 | 2023-08-25 | Hydraulic device for limiting screwing torque of drill rod of rock drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322290898.8U CN220726706U (en) | 2023-08-25 | 2023-08-25 | Hydraulic device for limiting screwing torque of drill rod of rock drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220726706U true CN220726706U (en) | 2024-04-05 |
Family
ID=90494799
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322290898.8U Active CN220726706U (en) | 2023-08-25 | 2023-08-25 | Hydraulic device for limiting screwing torque of drill rod of rock drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220726706U (en) |
-
2023
- 2023-08-25 CN CN202322290898.8U patent/CN220726706U/en active Active
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