CN210598950U - Cambridge self-drilling type lateral pressure instrument drill bit drilling speed measuring device - Google Patents
Cambridge self-drilling type lateral pressure instrument drill bit drilling speed measuring device Download PDFInfo
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- CN210598950U CN210598950U CN201921320611.9U CN201921320611U CN210598950U CN 210598950 U CN210598950 U CN 210598950U CN 201921320611 U CN201921320611 U CN 201921320611U CN 210598950 U CN210598950 U CN 210598950U
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Abstract
本实用新型涉及一种剑桥自钻式旁压仪钻头钻进速度测量装置，包括放置箱，所述放置箱，内固定安装有水平布置的转轴，所述转轴上固定安装有监测齿轮和发条，所述放置箱内还安装有的转速传感器，转速传感器贴近监测齿轮布置，用于测量监测齿轮的转速；所述放置箱内位于发条的正上方固定布设有定滑轮，所述发条连接有发条绳，发条绳绕过定滑轮后从放置箱侧壁穿出；所述钻进速度测量装置还包括有固定带，所述放置箱侧壁穿出的发条绳与固定带固定连接。本实用新型内部结构简单，制造成本低，易于装配到旁压仪上，且操作便捷，测量精度高。
The utility model relates to a device for measuring the drilling speed of a drill bit of a Cambridge self-drilling side pressure gauge, comprising a placing box, wherein a horizontally arranged rotating shaft is fixedly installed in the placing box, and a monitoring gear and a mainspring are fixedly installed on the rotating shaft , a rotational speed sensor is also installed in the placing box, and the rotational speed sensor is arranged close to the monitoring gear to measure the rotational speed of the monitoring gear; a fixed pulley is fixedly arranged in the placing box directly above the mainspring, and the mainspring is connected There is a mainspring rope, and the mainspring rope goes around the fixed pulley and goes out from the side wall of the placing box; the drilling speed measuring device also includes a fixing belt, and the spring rope passing through the side wall of the placing box is fixed with the fixing belt connect. The utility model has the advantages of simple internal structure, low manufacturing cost, easy assembly on the side pressure gauge, convenient operation and high measurement accuracy.
Description
Technical Field
The utility model relates to a ground reconnaissance instrument and equipment technical field, concretely relates to cambridge is from boring formula side pressure appearance drill bit drilling speed measuring device.
Background
The lateral pressure test is that a cylindrical lateral pressure device is vertically placed in the soil, the expansion of the lateral pressure device is utilized to apply uniform pressure to the surrounding soil body, and the relation between radial pressure and deformation is measured, so that the stress-strain relation of the foundation soil in the horizontal direction can be obtained. The lateral pressure test is divided into the following modes according to the mode that a lateral pressure device is placed in a soil layer: pre-drilling type side pressure test, self-drilling type side pressure test and press-in type side pressure test. The pre-drilling type lateral pressure test is that a hole is drilled in a soil layer in advance, and then the lateral pressure device is placed in the hole for testing depth, and the result depends on the quality of the formed hole to a great extent, and the pre-drilling type lateral pressure test is generally used in foundation soil with better quality of the formed hole. The self-drilling type lateral pressure test is that a drill bit and an annular cutting tool are arranged at the lower end of a lateral pressure device and pressed into soil under static pressure, meanwhile, the drill bit is used for cutting the soil entering the cutting tool, the circulating slurry is used for carrying the broken soil to the ground, and the test is carried out after the preset depth is reached. The press-in type side pressure test is divided into a cone press type and a cylinder press type, and the side pressure device is pressed into a specified depth by using a static force for testing, but the side pressure device has a soil squeezing effect on soil in the process of pressing the side pressure device, and has a certain influence on the test result.
The cambridge self-drilling lateral pressure instrument is a special instrument for carrying out self-drilling lateral pressure tests, and self-drilling is carried out by utilizing a specially designed drilling tool. However, when the existing cambridge self-drilling lateral pressure instrument drill bit works, the drilling speed cannot be measured, and the control is not easy during the drilling operation.
SUMMERY OF THE UTILITY MODEL
The utility model discloses to the technical problem who exists among the prior art, provide a cambridge is from boring formula side pressure appearance drill bit and is bored speed measuring device, inner structure is simple, low in manufacturing cost, easily assembles on the side pressure appearance, and the simple operation, and measurement accuracy is high.
The utility model provides an above-mentioned technical problem's technical scheme as follows: a cambridge self-drilling type lateral pressure instrument drill bit drilling speed measuring device comprises a placing box, wherein a horizontally arranged rotating shaft is fixedly installed in the placing box, a monitoring gear and a clockwork spring are fixedly installed on the rotating shaft, and a rotating speed sensor is also installed in the placing box, is arranged close to the monitoring gear and is used for measuring the rotating speed of the monitoring gear; a fixed pulley is fixedly arranged in the placing box and is positioned right above the clockwork spring, the clockwork spring is connected with a clockwork spring rope, and the clockwork spring rope passes through the side wall of the placing box after passing through the fixed pulley; the drilling speed measuring device further comprises a fixing belt, and the spiral spring rope penetrating through the side wall of the placing box is fixedly connected with the fixing belt.
On the basis of the technical scheme, the utility model discloses can also do following improvement.
Further, the pivot includes with place case fixed connection's cradling piece and coaxial cover establish can wind cradling piece pivoted sleeve pipe outside the cradling piece, monitoring gear and clockwork spring and sleeve pipe fixed connection.
Further, a ball is arranged between the support rod and the sleeve.
Further, the fixed pulley is fixedly connected with the placing box through a pulley fixing device.
Further, the clockwork spring rope is a steel wire rope.
Furthermore, place the case lateral wall and wear out the perforation of clockwork spring rope and fixedly mounted has the steel cable screw, and the clockwork spring rope is connected on the steel cable screw.
Further, the rotating speed sensor is a magnetoelectric sensor.
Further, the installation clearance between the rotating speed sensor and the detection gear is 0-5 mm.
Further, place the case outside fixed mounting have intelligent rotational speed display appearance, intelligent rotational speed display appearance is connected with the tachometric sensor electricity.
The utility model has the advantages that: the utility model relates the drilling speed of the drill bit and the angular speed of the monitoring gear by using the clockwork spring device and the coaxially arranged monitoring gear, the angular speed of the monitoring gear is measured by the rotating speed sensor, the drilling speed of the drill bit is calculated, and the measuring result is very accurate; the utility model discloses structural design is ingenious, and overall structure is simple, and stability is strong, convenient assembling, and low cost.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a schematic view of an assembly structure in a use state of the present invention;
in the figure: 1. the device comprises a placing box, 2, a rotating speed device, 3, steel balls, 4, a support rod, 5, a sleeve, 6, a pulley fixing frame, 7, a steel rope screw, 8, a steel wire rope, 9, a fixed pulley, 10, a detection gear, 11 and an intelligent rotating speed display instrument; 12. spring, 13, hydraulic pressure appearance, 14, hydraulic pressure appearance base, 15, solid fixed ring, 16, screw, 17, fixed band.
Detailed Description
The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.
As shown in figure 1, the utility model relates to a cambridge is from boring formula collateral pressure appearance drill bit drilling speed measuring device, including placing case 1, place the pivot that case 1 internal fixation was equipped with the level and was arranged, fixed mounting has monitoring gear 10 and clockwork spring 12 in the pivot. Place the rotational speed sensor 2 that still installs in the case 1, rotational speed sensor 2 is pressed close to monitoring gear 10 and is arranged for measure monitoring gear 10's rotational speed. Place the fixed pulley 9 of fixed being laid directly over the clockwork spring 12 in the case 1, clockwork spring 12 is connected with clockwork spring rope 8, and clockwork spring rope 8 walks around behind the fixed pulley 9 and wears out from placing case 1 lateral wall. The clockwork spring rope 8 is preferably a steel wire rope.
As shown in figure 2, when in use, the placing box 1 is fixedly arranged on a fixing ring 15 of a hydraulic instrument base 14 of the cambridge self-drilling type lateral pressure instrument. The drilling speed measuring device also comprises a fixing belt 17, and the fixing belt 17 is fixedly sleeved on the hydraulic instrument 13 when in use. The clockwork spring rope 8 penetrating through the side wall of the placing box 1 is fixedly connected with the fixing belt 17.
As shown in fig. 1, the utility model also provides a modified technical scheme, in modified technical scheme, the pivot includes and establishes the sleeve pipe 5 that can wind the support bar 4 pivoted outside the support bar 4 with the coaxial cover at the support bar 4 of placing case 1 fixed connection, monitoring gear 10 and sleeve pipe 5 fixed connection, clockwork spring 12 also with sleeve pipe 5 fixed connection.
Preferably, a ball 3 is installed between the support rod 4 and the sleeve 5.
As shown in fig. 1, the present invention further provides another improved technical solution, in which the fixed pulley 9 is fixedly connected with the placing box 1 through the pulley fixing device 6.
As shown in fig. 1, the utility model also provides another modified technical scheme, in the modified technical scheme, place case 1 lateral wall and wear out the perforation department fixed mounting of clockwork spring rope 8 and have steel cable screw 7, clockwork spring rope 8 connects on steel cable screw 7.
Preferably, a similar connection between the spring string 8 and the fixing band 17 is also possible. The steel wire screw 7 is fixedly arranged on the fixing band 17 through the screw 16, and the clockwork spring rope 8 is fixedly connected to the steel wire screw 7.
The utility model discloses still provide another kind of modified technical scheme, in modified technical scheme, speed sensor 2 is magnetoelectric sensor.
A magnetoelectric sensor with the working voltage of DC5-28V can be selected. The sensor main body is a magnetic sensitive element, and the trigger material is a gear, a rack, a groove or a hole made of steel.
The following parameters of the sensor may be selected:
outputting a signal: square wave pulse (signal amplitude, high level is approximately equal to power voltage, low level is less than or equal to 0.3V), amplitude is stable, and long-distance transmission can be realized.
Protection design: polarity and short circuit protection.
And (3) measuring precision: 1 pulse.
The inside of the device is provided with an amplifying and shaping circuit, the zero rotating speed is measured, and the maximum frequency reaches more than 15 KHZ.
Preferably, the installation clearance between the rotating speed sensor 2 and the detection gear 10 is 0-5 mm.
Preferably, the placing box 1 is fixedly provided with an intelligent rotating speed display instrument 11 at the outside, and the intelligent rotating speed display instrument 11 is electrically connected with the rotating speed sensor 2.
The working principle of the utility model is as follows:
first, the rate of penetration of the drill bit may be calculated using the following derived calculation:
assuming that the radius of the monitoring gear 10 is R and the radius of the sleeve 5 is R, since the monitoring gear 10 and the sleeve 5 are fixedly connected, and the angular velocities thereof are the same, there is the following formula:
obtaining after conversion:
and because the spring rope 8 is connected with the sleeve 5 through the spring 12, the linear speed of the spring rope 8 is the same as the rotation speed of the outer periphery of the sleeve 5, and the device is fixed on a base of the cambridge self-drilling type lateral pressure instrument with a hydraulic device. At the same time, the lowering speed of the spring rope 8 is the same as the drilling speed of the drill, so that the V-line is VIV drill.
When the automatic side pressure instrument is used, the placing box 1 is fixedly arranged on a fixing ring 15 of a hydraulic instrument base 14 of the cambridge self-drilling side pressure instrument, and a fixing ring 17 is fixedly sleeved on the hydraulic instrument 13. The clockwork spring 12 is wound up to make the clockwork spring rope 8 in a tight state. After the spring rope 8 is stretched and tightened, the spring 12 is in a stretched state, and the spring 12 has stronger elastic potential energy. When the cambridge self-drilling type lateral pressure instrument works, the hydraulic instrument 13 applies pressure to the drill rod, water flow in the drill rod erodes a soil layer contacted by the drill bit, the soil layer is stirred and crushed by drilling of the drill bit, and the soil is taken out of the bottom of the hole by the water flow to finish drilling. The drill bit can produce the displacement in the soil layer this moment, thereby lead to the distance between hydraulic means's upper portion and the bottom to reduce, clockwork spring rope 8 relaxs gradually, and clockwork spring 12 in the speed sensor can kick-back and make clockwork spring rope 8 straighten once more, the in-process that clockwork spring 12 kick-backs can drive sleeve pipe 5 rotatory, thereby drive monitoring gear 10 synchronous revolution, the rotational speed of speed sensor 2 real-time detection monitoring gear, and with the information transfer who detects to intelligent rotational speed digital display appearance 11 in, again carry out the conversion with the rotational speed and calculate the drilling speed who reachs the drill bit.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (9)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921320611.9U CN210598950U (en) | 2019-08-14 | 2019-08-14 | Cambridge self-drilling type lateral pressure instrument drill bit drilling speed measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921320611.9U CN210598950U (en) | 2019-08-14 | 2019-08-14 | Cambridge self-drilling type lateral pressure instrument drill bit drilling speed measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210598950U true CN210598950U (en) | 2020-05-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921320611.9U Expired - Fee Related CN210598950U (en) | 2019-08-14 | 2019-08-14 | Cambridge self-drilling type lateral pressure instrument drill bit drilling speed measuring device |
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| Country | Link |
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| CN (1) | CN210598950U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024179355A1 (en) * | 2023-02-27 | 2024-09-06 | 长安大学 | Device capable of in-situ cutting of soil in hole, and method for use thereof |
-
2019
- 2019-08-14 CN CN201921320611.9U patent/CN210598950U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024179355A1 (en) * | 2023-02-27 | 2024-09-06 | 长安大学 | Device capable of in-situ cutting of soil in hole, and method for use thereof |
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200522 |