CN215213476U - Drilling machine rotating speed monitoring device - Google Patents
Drilling machine rotating speed monitoring device Download PDFInfo
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- CN215213476U CN215213476U CN202120364354.XU CN202120364354U CN215213476U CN 215213476 U CN215213476 U CN 215213476U CN 202120364354 U CN202120364354 U CN 202120364354U CN 215213476 U CN215213476 U CN 215213476U
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Abstract
The utility model discloses a drilling machine rotating speed monitoring device, which relates to the field of coal mine machinery and comprises a slewing mechanism, wherein the slewing mechanism comprises a slewing disc, and N magnets are arranged on the slewing disc; the rotating speed sensor comprises a support and a sensor body, the support is vertically arranged at the bottom of the rotating mechanism, the sensor body is vertically arranged on the support, and the top end of the sensor body is opposite to the magnet of the rotating disc; and the processor is internally provided with a rotating speed threshold value for controlling the rotating speed of the slewing mechanism. The utility model discloses a speed sensor detects magnet and calculates rig rotation mechanism rotational speed, and simple structure easily realizes, still can be used to monitor the process of two holders unscrewing drilling rod operation simultaneously, reduces the screw thread and dismantles the probability of in-process rig occurence of failure.
Description
Technical Field
The utility model relates to a coal mine machinery, concretely relates to rig rotational speed monitoring devices.
Background
When the drilling machine drills in the construction process, the rotating speed of the drilling machine during drilling needs to be adjusted according to different drilling media and drilling machine loads, the same automatic control drilling machine needs to collect parameters such as the rotating speed and the like in the drilling process if the drilling machine wants to keep efficient operation in the drilling process, and the operating state of the equipment needs to be automatically adjusted according to parameter changes so as to achieve the maximum operating efficiency.
In the prior art, a rotation speed monitoring method is disclosed, wherein a friction power generation module is arranged in a slewing mechanism, and in addition, a circuit board is arranged in the whole system to detect the power generation frequency and calculate the rotation speed of a drilling tool according to the power generation frequency. The technical scheme has the following problems:
the friction power generation module of the slewing mechanism occupies a large space, the part layout structure is complex, and the rotating speed precision is low. Meanwhile, when the drilling machine uses the double-holder structure to disassemble the drill rods, the screw thread between the two drill rods needs to be unscrewed through the relative rotation between the two holders, if the clamping slip of the holder slips when the screw thread between the two drill rods is unscrewed, when the screw thread between the two drill rods cannot be loosened, equipment faults easily occur, the operation efficiency of the equipment is reduced, and even the equipment is damaged.
SUMMERY OF THE UTILITY MODEL
For solving the problem among the prior art, the utility model discloses a rig rotational speed monitoring devices has solved the rotational speed precision through sensor and rotation mechanism's structural design and has been difficult to the definite problem, controls rotation mechanism through rotational speed and rotational acceleration simultaneously, has improved the security and the stability of rig.
According to the utility model discloses an aspect, a rig rotational speed monitoring devices, include: the rotary mechanism comprises a rotary disc, and N magnets are arranged on the rotary disc; the rotating speed sensor comprises a support and a sensor body, the support is vertically arranged at the bottom of the rotating mechanism, the sensor body is vertically arranged on the support, and the top end of the sensor body is opposite to the magnet of the rotating disc; and the processor is internally provided with a rotating speed threshold value for controlling the rotating speed of the slewing mechanism.
Further optionally, the drilling machine rotation speed monitoring device further comprises a floating clamp and a fixed clamp.
As a further alternative, the tachometer registers the time difference t between every two magnetsN。
The utility model has the advantages that:
the utility model discloses a speed sensor detects magnet and calculates rig rotation mechanism rotational speed, and simple structure easily realizes, still can be used to monitor the process of two holders unscrewing drilling rod operation simultaneously, reduces the screw thread and dismantles the probability of in-process rig occurence of failure. The rotating speed of the drilling machine is cooperatively controlled by combining the rotating speed and the rotating acceleration, the drill jamming condition of the drilling machine in the drilling process is reduced, and the rotating angle identification precision is improved by the design scheme of matching the rotating speed sensor and the magnet, so that the problem of drill jamming of the clamp holder is solved.
Drawings
Fig. 1 shows a schematic structural diagram of a device for monitoring the rotation speed of a drilling machine according to the present invention.
Description of the main elements
1-a slewing mechanism; 2-a magnet; 3-a rotation speed sensor; 4-a floating gripper; 5-fixing the clamp.
Detailed Description
The contents of the present invention will now be discussed with reference to several exemplary embodiments. It should be understood that these examples are discussed only to enable those of ordinary skill in the art to better understand and thus implement the teachings of the present invention, and are not intended to imply any limitations on the scope of the invention.
As used herein, the term "include" and its variants are to be read as open-ended terms meaning "including, but not limited to. The term "based on" is to be read as "based, at least in part, on". The terms "one embodiment" and "an embodiment" are to be read as "at least one embodiment". The term "another embodiment" is to be read as "at least one other embodiment".
Example 1
As shown in fig. 1, the present embodiment will clearly and completely describe the technical solution, and the described embodiments are only a part of embodiments of the present invention, but not all embodiments. The embodiment discloses a rig rotational speed monitoring devices, it mainly includes:
the slewing mechanism 1, the slewing mechanism 1 comprises a slewing disc on which N magnets 2 are arranged, in this embodiment N is preferably 72, i.e. the magnets 2, 72 are evenly distributed at the slewing disc of the slewing mechanism 1.
And the rotating speed sensor 3 comprises a support and a sensor body, the support is vertically arranged at the bottom of the rotating mechanism 1, the sensor body is vertically arranged on the support, and the top end of the sensor body is opposite to the magnet 2 of the rotating disk.
The processor is internally provided with a rotating speed threshold value for controlling the rotating speed of the slewing mechanism 1.
The clamp assembly includes a floating clamp 4 and a fixed clamp 5.
When the slewing gear 1 rotates, the time difference t of every two magnet 2 signals is recorded by the rotating speed sensor 3NEach time difference rotating mechanism 1 rotates 5 degrees, the average time of each circle is 72 time differences, and the time of one circle of the rotating mechanism 1 is 72 time differences tNSum of
The processor calculates the real-time rotating speed w of the slewing mechanism 1 as per minute divided by
The rotating speed sensor 3 is used for detecting the magnet 2 to calculate the rotating speed of the rotary mechanism 1 of the drilling machine, the structure is simple and easy to achieve, meanwhile, the process of unscrewing the drill rod by the double clamps can be monitored, and the probability of drilling machine accidents in the screw thread detaching process is reduced. The rotating speed of the drilling machine is cooperatively controlled by combining the rotating speed and the rotating acceleration, the drill jamming condition of the drilling machine in the drilling process is reduced, and the rotating angle identification precision is improved by the design scheme of matching the rotating speed sensor 3 and the magnet 2, so that the problem of drill jamming of the clamp holder is solved.
Example 2
As shown in fig. 1, the present embodiment will clearly and completely describe the technical solution, and the described embodiments are only a part of embodiments of the present invention, but not all embodiments. The embodiment discloses a method for controlling the rotating speed of a drilling machine, which mainly comprises the following steps:
the method comprises the following steps that 72 magnets 2 are arranged on a rotary disc of a rotary mechanism 1, and a rotating speed sensor 3 is arranged on a chassis and can detect signals of the magnets 2;
when the slewing gear 1 rotates, the time difference t of every two magnet 2 signals is recorded by the rotating speed sensor 3NEach time difference tNIs 5 degrees, the time of one rotation of the slewing mechanism 1 is N time differences tNSum of
The processor calculates the real-time rotating speed w of the slewing mechanism 1 as per minute divided by
The processor simultaneously records the time difference t between adjacent turnsxObtaining the rotation acceleration of the slewing mechanism 1 as
Judging whether the rotation acceleration of the slewing mechanism 1 is within the acceleration threshold range, and if not, reducing the rotating speed; the specific rotating speed mode comprises the following steps:
when the rotation acceleration exceeds 10% of the upper limit of the acceleration threshold, the processor controls the slewing mechanism 1 to reduce the rotation speed by 5%; when the rotation acceleration exceeds 20% of the upper limit of the acceleration threshold, the processor controls the slewing mechanism 1 to reduce the rotation speed by 20%; when the rotation acceleration exceeds 50% of the upper limit of the acceleration threshold, the processor controls the slewing mechanism 1 to stop rotating;
when the rotation acceleration is lower than 10% of the lower limit of the acceleration threshold, the processor controls the slewing mechanism 1 to increase the rotation speed by 15%; when the rotation acceleration is lower than 20% of the lower limit of the acceleration threshold, the processor controls the slewing mechanism 1 to increase the rotation speed by 40%; when the rotation acceleration is lower than 50% of the lower limit of the acceleration threshold, the processor controls the swing mechanism 1 to stop rotating.
Judging whether the real-time rotating speed w of the slewing mechanism 1 is within a rotating speed threshold range, if not, reducing the rotating speed, wherein the specific rotating speed reduction mode comprises the following steps:
when the real-time rotating speed exceeds 10% of the upper limit of the rotating speed threshold, the processor controls the rotating mechanism 1 to reduce the rotating speed by 10%; when the real-time rotating speed exceeds 20% of the upper limit of the rotating speed threshold, the processor controls the rotating mechanism 1 to reduce the rotating speed by 30%; when the real-time rotating speed exceeds 60% of the upper limit of the rotating speed threshold, the processor controls the rotating mechanism 1 to stop rotating;
when the real-time rotating speed is lower than 10% of the lower limit of the rotating speed threshold, the processor controls the rotating mechanism 1 to increase the rotating speed by 20%; when the real-time rotating speed is lower than 20% of the lower limit of the rotating speed threshold, the processor controls the rotating mechanism 1 to increase the rotating speed by 50%; and when the real-time rotating speed is lower than 60% of the lower limit of the acceleration threshold, the processor controls the slewing mechanism 1 to stop rotating.
The rotating speed sensor 3 is used for detecting the magnet 2 to calculate the rotating speed of the rotary mechanism 1 of the drilling machine, the structure is simple and easy to achieve, meanwhile, the process of unscrewing the drill rod by the double clamps can be monitored, and the probability of drilling machine accidents in the screw thread detaching process is reduced. The rotating speed of the drilling machine is cooperatively controlled by combining the rotating speed and the rotating acceleration, the drill jamming condition of the drilling machine in the drilling process is reduced, and the rotating angle identification precision is improved by the design scheme of matching the rotating speed sensor 3 and the magnet 2, so that the problem of slipping of the clamp holder is solved.
Example 3
As shown in fig. 1, the present embodiment will clearly and completely describe the technical solution, and the described embodiments are only a part of embodiments of the present invention, but not all embodiments. The embodiment discloses a method for applying the rotating speed of a drilling machine, which mainly comprises the following steps:
the method comprises the following steps that 72 magnets 2 are arranged on a rotary disc of a rotary mechanism 1, and a rotating speed sensor 3 is arranged on a chassis and can detect signals of the magnets 2;
when the slewing gear 1 rotates, the time difference t of every two magnet 2 signals is recorded by the rotating speed sensor 3NEach time difference tNIs 5 °; the processor controls the fixed clamp 5 to perform clamping operation, the floating clamp 4 is loosened, the rotating mechanism 1 is reversed, the rotating fixed angle of the floating clamp 4 in the double clamps is 20 degrees, the minimum reverse angle for unscrewing the screw threads between the drill rods is 15 degrees, and in the process of clamping the drill rods by the floating clamp 4 and reversing, as long as the frequency of sensing the signals of the magnet 2 by the proximity switch is less than 3 times, the slip phenomenon can be judged to occur in the process of unscrewing the screw threads by the double clamps, the possibility that the screw threads between the drill rods are not unscrewed exists, and the system needs to be suspended and manually processed.
The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be understood by those skilled in the art that the scope of the present invention is not limited to the specific combination of the above-mentioned features, but also covers other embodiments formed by any combination of the above-mentioned features or their equivalents without departing from the spirit of the present invention. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.
It should be understood that the order of the steps in the embodiments and the disclosure of the present invention does not absolutely imply any order of execution, and the execution order of the processes should be determined by their functions and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present invention.
Claims (3)
1. A drill speed monitoring device, comprising:
the rotary mechanism comprises a rotary disc, and N magnets are arranged on the rotary disc;
the rotating speed sensor comprises a support and a sensor body, the support is vertically arranged at the bottom of the rotating mechanism, the sensor body is vertically arranged on the support, and the top end of the sensor body is opposite to the magnet of the rotating disc;
and the processor is internally provided with a rotating speed threshold value for controlling the rotating speed of the slewing mechanism.
2. The drill speed monitoring device of claim 1, further comprising a floating clamp and a fixed clamp.
3. A drill speed monitoring device according to claim 1, wherein the speed sensor records the time difference t between every two magnetsN。
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120364354.XU CN215213476U (en) | 2021-02-08 | 2021-02-08 | Drilling machine rotating speed monitoring device |
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| CN202120364354.XU CN215213476U (en) | 2021-02-08 | 2021-02-08 | Drilling machine rotating speed monitoring device |
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| CN215213476U true CN215213476U (en) | 2021-12-17 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112780251A (en) * | 2021-02-08 | 2021-05-11 | 铁福来装备制造集团股份有限公司 | Drilling machine rotating speed monitoring system, control method and application method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112780251A (en) * | 2021-02-08 | 2021-05-11 | 铁福来装备制造集团股份有限公司 | Drilling machine rotating speed monitoring system, control method and application method |
| CN112780251B (en) * | 2021-02-08 | 2023-09-19 | 铁福来装备制造集团股份有限公司 | Drilling machine rotating speed monitoring system, control method and application method |
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