CN213980776U - Be used for rotary drill to bore depth detection device - Google Patents
Be used for rotary drill to bore depth detection device Download PDFInfo
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- CN213980776U CN213980776U CN202022617240.XU CN202022617240U CN213980776U CN 213980776 U CN213980776 U CN 213980776U CN 202022617240 U CN202022617240 U CN 202022617240U CN 213980776 U CN213980776 U CN 213980776U
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Abstract
The utility model provides a be used for rotary drill perforation degree of depth detection device mainly comprises sensor, pulley, axis of rotation and bearing, the pulley is fixed in the axis of rotation, the axis of rotation passes through the bearing rotates with the one end of support to be connected, the sensor is fixed on the support, the output of axis of rotation through even axle sleeve with the input coaxial arrangement of sensor, the other end and the rig derrick top fixed connection of support, the pulley is pressed close to one side of rig derrick compresses tightly and carries and draw wire rope, makes wire rope takes place to warp, adjusts the pretightning force between pulley and the wire rope through the radian size that control wire rope warp, guarantees that wire rope slides and pulley rotation synchronization. The pulley outputs the movement of the wire rope to a sensor, and the sensor monitors the rotation direction and the rotation number of the pulley. The utility model discloses an effectively guarantee the measuring degree of accuracy to stability is high, simple structure, easy dismounting, rigidity are reliable, can bear the high load operating mode.
Description
Technical Field
The utility model relates to a rig drilling depth detects technical field, concretely relates to perforation depth detection device for rotary drill.
Background
The roller-cone drilling machine is a high-efficiency hole-forming equipment used in foundation construction, and utilizes the drill rod which is always kept in vertical direction to directly rotate and excavate the ground so as to quickly form pile hole with required diameter and depth on the ground. The rotary drill is widely used in the foundation construction process of mines, projects and buildings due to high power, strong power and quick hole forming.
It is well known that accurate measurement of the depth of a borehole is of great importance for normal production. Taking a coal mine as an example, the depth of a drilled hole is related to the gas extraction effect, and if the depth of the drilled hole cannot be accurately detected, the influence on subsequent gas extraction and coal seam water injection can be caused, and potential hidden dangers can be directly brought to the safety production of the coal mine in the later period. However, the coal seam structure is soft and is easy to collapse after drilling, so that the drilling hole is blocked, and the detection of the drilling depth is influenced. The worker can not accurately know the drilling depth, and the normal production is seriously influenced.
The existing rotary drill is rarely provided with a depth detection device, only a few types of rotary drill are provided with a measuring device on a goose head pulley at the top of a mast, and the distance traveled by a steel wire rope is converted by collecting the number of rotation turns of the goose head pulley, so that the depth of a pile hole is determined. However, in practical use, the detection method is easy to slip when starting and stopping due to the impact of the power head and the drill rod with large power and weight, so that the measurement error of the depth of the pile hole is caused, and the depth of the pile hole cannot be accurately measured; and the goose head pulley is stressed by the steel wire rope, so that the wear is serious, the pulley frame is easy to deform in the long-term working process, the accumulative error is generated in the measuring process, the pile hole depth is not effectively ensured, and the use of the rotary drill is adversely affected.
SUMMERY OF THE UTILITY MODEL
Problem to prior art existence, the utility model provides a drilling depth detection device for rotary drill has compensatied the defect of current like product, effectively guarantees the measuring degree of accuracy to stability is high, simple structure, easy dismounting, rigidity are reliable, can bear the high load operating mode, and the rig that is fit for adopting wheel system steel wire line transmission structure uses.
The technical scheme of the utility model is realized like this:
the utility model provides a be used for rotary drill perforation degree of depth detection device, mainly comprises sensor, pulley, axis of rotation and bearing, the pulley is fixed in the axis of rotation, the axis of rotation passes through the bearing rotates with the one end of support to be connected, the sensor is fixed on the support, the output of axis of rotation through even axle sleeve with the input coaxial arrangement of sensor, the other end and the rig derrick top fixed connection of support, the pulley is pressed close to one side of rig derrick compresses tightly and draws wire rope, makes wire rope takes place to warp, adjusts pretightning force between pulley and the wire rope through the radian size of control wire rope deformation, guarantees that wire rope slides and pulley rotation synchronization, the pulley gives wire rope's motion output the sensor, the sensor will be monitored pulley direction of rotation and revolution.
Further, the pulley is connected with the rotating shaft through a key.
Further, the sensor is fixed on the chain wheel bracket through a sensor support.
Further, the inner surface of the groove of the pulley is provided with an anti-skid wear-resistant coating.
Furthermore, a shock pad is arranged between the sensor support and the support.
Further, a sensor shield is arranged outside the sensor.
Further, the sensor is an absolute value encoder.
Furthermore, the drilling machine is an open-air roller cone drilling machine adopting a steel wire transmission structure of a rotary system.
The perforation depth detection device detects the rotation direction, the number of turns and the last turn angle of the pulley through the sensor, and the drill bit walking distance can be obtained in real time by combining the movement direction of the drill rod.
The utility model has the advantages that:
the drilling depth detection device is arranged at the top of a drill frame of a drilling machine, and the pulley and the lifting steel wire rope are matched with each other, so that the pulley frame cannot deform due to the fact that the pulley frame bears pressure caused by the self gravity of drill equipment for a long time, accumulated errors are generated, and the measurement accuracy is effectively guaranteed.
And secondly, the anti-skidding wear-resistant coating is arranged on the inner surface of the groove of the pulley, so that the problem of skidding generated when the equipment is started and stopped is effectively solved.
And a shock pad is arranged between the sensor support and the support, and a sensor shield is arranged outside the sensor. The design can effectively reduce the influence of external factors such as vibration and the like on the measurement accuracy.
The perforation depth detection device has the advantages of high stability, simple structure, convenience in disassembly and assembly, reliable rigidity, capability of bearing high-load working conditions, and suitability for the drilling machine adopting a steel wire transmission structure of a wheel rotation system. The device can be additionally arranged on a drilling machine without a depth detection device, and provides real-time monitoring of the walking distance of the drill bit.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of the present invention.
The attached drawings are as follows: the sensor comprises a sensor 1, a pulley 2, a rotating shaft 3, a bearing 4, a support 5, a connecting shaft sleeve 6, a key 7, a sensor support 8, a shock absorption pad 9 and a sensor shield 10.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
As shown in figure 1, the device for detecting the perforation depth of the roller-bit drill mainly comprises a sensor 1, a pulley 2, a rotating shaft 3 and a bearing 4, the pulley 2 is fixed on the rotating shaft 3, the rotating shaft 3 is rotatably connected with one end of the bracket 5 through the bearing 4, the sensor 1 is fixed on a bracket 5, the output end of the rotating shaft 3 is coaxially arranged with the input end of the sensor 1 through a connecting shaft sleeve 6, the other end of the bracket 5 is fixedly connected with the top of a drill frame of the drilling machine, one side of the pulley 2 close to the drill frame of the drilling machine is pressed and pulled to lead the steel wire rope to be deformed, the pre-tightening force between the pulley 2 and the steel wire rope is adjusted by controlling the radian of the steel wire rope deformation, the steel wire rope sliding and the pulley 2 rotating are ensured to be synchronous, the pulley 2 outputs the movement of the steel wire rope to the sensor 1, and the sensor 1 monitors the rotation direction and the rotation number of the pulley 2.
The pulley 2 is connected with the rotating shaft 3 through a key 7, and the sensor 1 is fixed on the chain wheel bracket 5 through a sensor support 8.
Preferably, the inner surface of the groove of the pulley 2 is provided with an anti-skid wear-resistant coating, so that the problem of skidding generated when the equipment is started and stopped can be effectively solved, and the accuracy of measurement is ensured.
And a shock absorption pad 9 is arranged between the sensor support 8 and the support 5, and a sensor shield 10 is arranged outside the sensor 1. The design can effectively reduce the influence of external factors such as vibration and the like on the measurement accuracy.
Preferably, the sensor 1 is an absolute value encoder.
The perforation depth detection device is suitable for an open-air roller drill adopting a steel wire transmission structure of a rotary system, and can be additionally arranged on a drill without the depth detection device to provide real-time monitoring of the travelling distance of a drill bit.
In practical application, the perforation depth detection device detects the rotation direction, the number of turns and the last turn angle of the pulley 2 through the sensor 1, and the drill bit walking distance can be obtained in real time by combining the movement direction of the drill rod.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly secured to the other element or be indirectly secured to the other element.
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. A device for detecting the perforation depth of a rotary drill is characterized by mainly comprising a sensor, a pulley, a rotating shaft and a bearing, the pulley is fixed on the rotating shaft, the rotating shaft is rotatably connected with one end of the bracket through the bearing, the sensor is fixed on the bracket, the output end of the rotating shaft is coaxially arranged with the input end of the sensor through a connecting shaft sleeve, the other end of the bracket is fixedly connected with the top of the drill rig drill frame of the drilling machine, one side of the pulley close to the drill rig drill frame of the drilling machine compresses the steel wire rope to deform the steel wire rope, the pre-tightening force between the pulley and the steel wire rope is adjusted by controlling the radian of the steel wire rope deformation, the synchronization of the sliding of the steel wire rope and the rotation of the pulley is ensured, the pulley outputs the motion of the steel wire rope to the sensor, and the sensor monitors the rotation direction and the rotation number of the pulley.
2. The apparatus of claim 1, wherein the pulley is connected to the rotating shaft by a key.
3. The apparatus of claim 1, wherein the sensor is fixed to the sprocket support by a sensor mount.
4. The device for detecting the perforation depth of the roller cone drill according to claim 1, wherein the inner surface of the pulley groove is provided with an anti-skid wear-resistant coating.
5. The device for detecting the perforation depth of the roller cone drill according to claim 3, wherein a shock absorption pad is arranged between the sensor support and the bracket.
6. The device for detecting the perforation depth of the roller cone drilling machine according to any one of claims 1 to 5, wherein a sensor shield is arranged outside the sensor.
7. The apparatus of claim 6, wherein the sensor is an absolute encoder.
8. The device for detecting the perforation depth of the roller cone drilling machine according to claim 6, wherein the drilling machine is an open-air roller cone drilling machine adopting a steel wire transmission structure of a rotary system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022617240.XU CN213980776U (en) | 2020-11-12 | 2020-11-12 | Be used for rotary drill to bore depth detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022617240.XU CN213980776U (en) | 2020-11-12 | 2020-11-12 | Be used for rotary drill to bore depth detection device |
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| Publication Number | Publication Date |
|---|---|
| CN213980776U true CN213980776U (en) | 2021-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022617240.XU Active CN213980776U (en) | 2020-11-12 | 2020-11-12 | Be used for rotary drill to bore depth detection device |
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| Country | Link |
|---|---|
| CN (1) | CN213980776U (en) |
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2020
- 2020-11-12 CN CN202022617240.XU patent/CN213980776U/en active Active
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