CN220378179U - Drilling device - Google Patents

Abstract

The utility model relates to a drilling rig, including drilling rod, installation body, winding have pulley spare, centrifugation spare and the brake spare of rope body, the installation body is rotationally located to the pulley spare, and the pulley spare is used for pulling the drilling rod through the rope body, and the centrifugation spare is connected with the pulley spare, and the pulley spare can be installed the body relatively and rotate, and the centrifugation spare can rotate along with the pulley spare is synchronous, and when the pulley spare rotates to reach the rotational speed of predetermineeing, the centrifugation spare can drive brake spare and pulley spare under the effect of centrifugal force and offset and press. According to the drilling device, the centrifugal piece can synchronously rotate along with the pulley piece, so that when the centrifugal piece rotates along with the pulley piece to reach the preset rotating speed, the brake piece is driven to prop against the pulley piece under the centrifugal action, the speed limit and the brake of the rotation of the pulley piece are further realized, accidents caused by falling of a drill rod are avoided, and the working reliability of the drilling device is improved.

Description

Drilling device

Technical Field

The application relates to the technical field of geological exploration, in particular to a drilling device.

Background

With the development of geological exploration technology, drilling devices have emerged. For general drilling operations, operations such as coring, retrieving and moving the drill pipe are required.

Conventional drilling rigs typically do this by providing a derrick and crown block pulley.

However, conventional crown blocks present the risk of a sudden drop of the drill rod due to insufficient traction of the wire rope or mishandling. When the drill rod falls rapidly, the traditional drilling device cannot automatically identify whether the drill rod falls in time or not, and brakes the crown block pulley to prevent the drill rod from falling. Therefore, the conventional drilling device has a problem of a falling risk of the drill rod.

Disclosure of Invention

Based on the above, it is necessary to provide a drilling device for the problem that the drilling device has a risk of falling a drill rod.

The utility model provides a drilling device, drilling device includes drilling rod, installation body, twine have pulley spare, centrifugation spare and the brake piece of rope body, the pulley spare rotationally is located the installation body, the pulley spare passes through the rope body is used for pulling the drilling rod, the centrifugation spare with the pulley spare is connected, the pulley spare can be relative the installation body rotates, the centrifugation spare can be along with pulley spare synchronous rotation, works as when the pulley spare rotates and reaches the preset rotational speed, the centrifugation spare can be driven under the effect of centrifugal force the brake piece with the pulley spare offsets and presses.

In one embodiment, the centrifugal member comprises a telescopic driving member, and when the pulley member rotates to reach a preset rotation speed, the driving member approaches to and abuts against the braking member so as to drive the braking member to abut against the pulley member.

In one embodiment, the centrifugal element comprises a first rotor, a second rotor and a clamping element, the second rotor is circumferentially wrapped around the edge portion of the first rotor, the first rotor can rotate relative to the second rotor, the clamping element is connected to the first rotor, the first rotor is connected with the pulley element and can synchronously rotate along with the pulley element, the driving element is connected with the second rotor, and when the pulley element rotates to reach a preset rotation speed, the clamping element can press the second rotor under the action of centrifugal force and drive the second rotor to rotate by a preset angle, and the second rotor drives the driving element to approach and press the braking element.

In one embodiment, the predetermined angle is 15 ° -25 °.

In one embodiment, the centrifugal part further comprises a first rod and a second rod, the first rod is provided with a spring structure, the clamping part comprises a first lock tongue and a second lock tongue, one end of each of the first lock tongue and the second lock tongue is connected through the first rod, the other end of each of the first lock tongue and the second lock tongue is connected through the second rod, and when the pulley part rotates to reach a preset rotating speed, the first lock tongue can overcome the resistance of the spring structure to rotate and drive the second lock tongue to synchronously rotate to prop against the second rotating body.

In one embodiment, the second rotator is provided with a clamping part along one side of the second rotator, which is close to the clamping part along the circumferential direction of the second rotator, the first lock tongue and the second lock tongue are both provided with clamping structures, and the clamping structures are used for being matched with the clamping parts in a clamping way.

In one embodiment, the braking member includes a braking body, a rotating rod and a braking block, wherein the rotating rod is rotatably connected to the braking body near a middle portion of the rotating rod, the braking block is connected to one end of the rotating rod, the driving member is connected to the other end of the rotating rod, and when the pulley member rotates to reach a preset rotation speed, the driving member can drive the rotating rod to rotate, and the braking block is made to approach and abut against the pulley member.

In one embodiment, the pulley member is provided with a pulley groove, the rope is wound in the pulley groove, and when the pulley member rotates to reach a preset rotation speed, the brake block can be abutted against the rope in the pulley groove.

In one embodiment, a first elastic member is connected to a side of the rotating rod facing away from the driving member, and compression and stretching directions of the first elastic member are consistent with movement directions of the driving member.

In one embodiment, the brake body is provided with a mounting portion, the brake block is mounted in the mounting portion, the brake block can move along the length direction of the mounting portion, the brake piece further comprises a locking piece, the locking piece is connected with the brake block in a telescopic manner, when the pulley piece rotates to reach a preset rotating speed, the brake block can move along the length direction perpendicular to the mounting portion, and the locking piece is clamped between the brake block and the brake body.

In one embodiment, the brake member includes a second elastic member for elastically connecting the locking member to the brake pad.

In one embodiment, the installation body comprises a first cross beam, a first supporting piece and a second supporting piece which are symmetrically arranged, one end of the first supporting piece and one end of the second supporting piece are connected through the first cross beam, the installation body further comprises a second cross beam and a third cross beam which are parallel to the first cross beam, the second cross beam and the third cross beam are connected with the first supporting piece and the middle position of the second supporting piece, the second cross beam and the third cross beam are respectively arranged on two sides of the first supporting piece, and the pulley pieces are rotatably connected with the second cross beam and the third cross beam.

In one embodiment, the number of the driving members and the corresponding braking members is 2, the 2 braking members are respectively connected to the first supporting member and the second supporting member, and when the rotation of the pulley member reaches the preset rotation speed, the 2 driving members can synchronously approach and press the 2 braking members respectively.

According to the drilling device, the centrifugal piece can synchronously rotate along with the pulley piece, so that when the centrifugal piece rotates along with the pulley piece to reach a preset rotating speed, the brake piece is driven to prop against the pulley piece under the centrifugal action, and further the speed limit and the brake of the rotation of the pulley piece are realized. It should be noted that, above-mentioned default rotational speed is less than or equal to the maximum speed that reaches when the drilling rod takes place to fall, so is provided with and is favorable to guaranteeing that drilling equipment can produce corresponding centrifugal action when taking place to drop, and the centrifugal part can drive the brake piece under centrifugal action and brake the pulley piece to guarantee that the rope body has sufficient traction force to hold in the drilling rod, avoided the drilling rod to take place to fall and produce the accident, improved drilling equipment's operational reliability.

Drawings

Fig. 1 is a schematic structural diagram of a drilling device according to an embodiment.

Fig. 2 is a schematic structural view of a centrifugal member in a normal state in the drilling apparatus according to an embodiment.

Fig. 3 is a schematic structural view of a centrifugal member in a braked state in the drilling apparatus according to the embodiment.

Fig. 4 is a schematic structural diagram of a brake in a normal state in the drilling device according to an embodiment.

Fig. 5 is a schematic structural view of a braking member in a braking state in a drilling apparatus according to an embodiment.

Description of the reference numerals

10. A drilling device; 100. a mounting body; 111. a first support; 112. a second support; 113. a first cross beam; 120. a second cross beam; 130. a third cross beam; 200. a pulley member; 210. a rope body; 200a, pulley grooves; 300. a centrifuge; 310. a clamping piece; 311. a first tongue; 312. a second lock tongue; 310a, a first end; 310b, a second end; 3101. a clamping structure; 321. a first driving member; 322. a second driving member; 330. a first rotator; 340. a second rotator; 340a, a clamping part; 350. a housing; 360. a first rod member; 361. a spring structure; 370. a second rod member; 400. a brake member; 410. a first braking member; 420. a second brake member; 411. a brake body; 412. a rotating rod; 413. a brake block; 414. a first elastic member; 415. a second elastic member; 416. a locking member; 500. and (3) a roller.

Detailed Description

In order to make the above objects, features and advantages of the present application more comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is, however, susceptible of embodiment in many other forms than those described herein and similar modifications can be made by those skilled in the art without departing from the spirit of the application, and therefore the application is not to be limited to the specific embodiments disclosed below.

In the description of the present application, it should be understood that, if there are terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., these terms refer to the orientation or positional relationship based on the drawings, which are merely for convenience of description and simplification of description, and do not indicate or imply that the apparatus or element referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.

Furthermore, the terms "first," "second," and the like, if any, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the terms "plurality" and "a plurality" if any, mean at least two, such as two, three, etc., unless specifically defined otherwise.

In this application, unless explicitly stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly. For example, the two parts can be fixedly connected, detachably connected or integrated; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

In this application, unless expressly stated or limited otherwise, the meaning of a first feature being "on" or "off" a second feature, and the like, is that the first and second features are either in direct contact or in indirect contact through an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that if an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. If an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein, if any, are for descriptive purposes only and do not represent a unique embodiment.

Referring to fig. 1, fig. 1 shows a schematic structural diagram of a drilling device 10 according to an embodiment of the present application, where the drilling device 10 includes a drill pipe (not shown), a mounting body 100, a pulley member 200 wound with a rope 210, a centrifugal member 300 and a brake member 400, the pulley member 200 is rotatably disposed on the mounting body 100, the pulley member 200 is used for pulling the drill pipe through the rope 210, the centrifugal member 300 is connected with the pulley member 200, the pulley member 200 can rotate relative to the mounting body 100, the centrifugal member 300 can synchronously rotate with the pulley member 200, and when the pulley member 200 rotates to reach a preset rotation speed, the centrifugal member 300 can drive the brake member 400 to abut against the pulley member 200 under the action of the centrifugal force so as to limit the rotation of the pulley member 200.

The preset rotation speed is related to the weight of the drill rod pulled by the rope 210 and the time when the brake 400 is required to brake. When the preset rotational speed is set low, the drilling apparatus 10 can brake the pulley member 200 more quickly before the drill rod falls; when the preset rotational speed is set to be high, the braking of the drilling apparatus 10 is relatively more retarded. Specifically, in one embodiment, rapid or hysteresis braking can be achieved by reducing or increasing the mass of the associated structure of the centrifuge 300 to reduce or increase the amount of centrifugal force that needs to be provided to accommodate higher or lower rotational speeds of the pulley member 200.

The drilling device 10 can synchronously rotate along with the pulley member 200 through the centrifugal member 300, so that when the centrifugal member 300 rotates along with the pulley member 200 to reach a preset rotation speed, the brake member 400 is driven to press against the pulley member 200 under the centrifugal action, and further the rotation speed limit and the rotation brake of the pulley member 200 are realized. It should be noted that, the above-mentioned preset rotation speed is less than or equal to the maximum speed reached when the drill rod falls, so the arrangement is beneficial to ensuring that the drilling device 10 can generate a corresponding centrifugal action when falling, and the centrifugal piece 300 can drive the brake piece 400 to brake the pulley piece 200 under the centrifugal action, so that the rope 210 is ensured to have enough traction force to hold the drill rod, accidents caused by falling of the drill rod are avoided, and the working reliability of the drilling device 10 is improved.

Referring to fig. 1, in some embodiments, the installation body 100 includes a first beam 113, a first supporting member 111 and a second supporting member 112 symmetrically disposed, one end of the first supporting member 111 and one end of the second supporting member 112 are connected by the first beam 113, and further includes a second beam 120 and a third beam 130 disposed parallel to the first beam 113, the second beam 120 and the third beam 130 are connected with middle positions of the first supporting member 111 and the second supporting member 112, the second beam 120 and the third beam 130 are respectively disposed on two sides of the first supporting member 111, and the pulley member 200 is rotatably connected to the second beam 120 and the third beam 130, so that the installation of the pulley member 200 on the installation body 100 can be realized.

Specifically, the centrifugal member 300 and the pulley member 200 can be connected by the roller member 500, both ends of the roller member 500 are respectively rotatably connected to the second beam 120 and the third beam 130, and the connection manner of the first beam 113, the first support member 111 and the second support member 112 can be welding or integral molding. In some embodiments, the heights of the second beam 120 and the third beam 130 remain uniform, which is advantageous in ensuring the stability of the pulley member 200 in its rotation. Further, the installation body 100 serves as an installation carrier for the pulley 200 and also serves as a carrier for installing the drilling machine, so it is understood that the installation body 100 has a certain effective height, effective load, racking height and stand capacity, a basic size required for installing the drilling machine, and the like.

Further, as shown in fig. 1, in some embodiments, the number of driving members and corresponding braking members 400 is 2, the 2 braking members 400 are respectively connected to the first supporting member 111 and the second supporting member 112, and when the rotation of the pulley member 200 reaches the preset rotation speed, the 2 driving members can synchronously approach and abut against the 2 braking members 400 respectively, and by setting the 2 braking members 400, the braking effect of the drilling device 10 can be further improved.

Specifically, in some embodiments, as shown in fig. 1, the 2 braking members 400 are a first braking member 410 and a second braking member 420,2, respectively, the first braking member 410 is connected to the inner side of the first supporting member 111, the second braking member 420 is connected to the inner side of the second supporting member 112, and the first braking member 410 and the second braking member 420 are driven by the first driving member 321 and the second driving member 322, respectively, to synchronously apply braking on both sides of the pulley member 200, so as to greatly improve the braking effect.

As shown in connection with fig. 1-3, in some embodiments, the centrifuge 300 includes a telescoping drive member. When the rotation of the pulley member 200 reaches the preset rotation speed, the driving member approaches to and presses the braking member 400 to drive the braking member 400 to press against the pulley member 200, so that the automatic braking function of the drilling device 10 can be realized.

It should be noted that, when the driving member does not press the braking member 400, the drilling apparatus 10 is in a normal state; the braking state of the drilling apparatus 10 is when the driving member presses the braking member 400 and urges the braking member 400 against the pulley member 200.

Specifically, the driving member may be a rod member or a block member. It can be understood that the telescopic direction of the driving member is opposite to that of the braking member 400, so that the driving member can be guaranteed to perform telescopic movement, and the braking member 400 can be smoothly pressed against the braking member 400 in a braking state, so that the braking member 400 is driven to press against the pulley member 200, and the braking of the pulley member 200 is realized, so that the structure is simple and reliable.

As shown in connection with fig. 2 and 3, in some embodiments, the centrifuge 300 includes a first rotor 330, a second rotor 340, and a clamping member 310. The second rotator 340 is disposed to circumferentially wrap around an edge portion of the first rotator 330. The first rotating body 330 can rotate relative to the second rotating body 340, the clamping piece 310 is connected to the first rotating body 330, the first rotating body 330 is connected with the pulley piece 200 and can synchronously rotate along with the pulley piece 200, and the driving piece is connected with the second rotating body 340. When the pulley member 200 rotates to reach the preset rotation speed, the clamping member 310 can press the second rotating body 340 under the action of centrifugal force and drive the second rotating body 340 to rotate by a preset angle, and the second rotating body 340 drives the member to approach and press the braking member 400, so as to realize the braking effect of the braking member 400 on the pulley member 200.

Specifically, the first rotator 330 can be connected to the pulley member 200 through the roller member 500. The first rotator 330 serves as a mounting carrier and a rotating body of the centrifugal member 300, is connected to the pulley member 200 through the roller member 500, and can be rotated synchronously with the pulley member 200. It should be noted that, in the process of the pulley assembly 200 driving the first rotator 330 to rotate, the first rotator 330 rotates relative to the second rotator 340 and is surrounded by the second rotator 340, and the second rotator 340 is stationary relative to the mounting body 100. Thus, it is understood that the second rotator 340 may be directly or indirectly fixed to the mounting body 100. The above structure is simple and reliable, and the compactness of the drilling device 10 is improved.

In addition, in some embodiments, the above-mentioned "the clamping member 310 can press against the second rotating body 340 under the centrifugal force" can be implemented in various ways. For example, the clamping member 310 is in friction connection with the second rotator 340, the friction force is increased under the centrifugal action, and the second rotator 340 rotates by a preset angle under the friction force; or, the clamping piece 310 is a rolling piece with a certain weight, the second rotating body 340 is provided with a containing cavity, the clamping piece 310 is arranged in the containing cavity, and under the centrifugal action, the clamping piece 310 can apply force in the tangential direction of the periphery of the second rotating body 340 to drive the second rotating body 340 to rotate by a preset angle and the like.

Preferably, in some embodiments, the clamping member 310 is a rod connected to the first rotator 330, and the clamping member 310 can rotate relative to the first rotator 330 under the action of centrifugal force and is clamped with the second rotator 340.

Further, as shown in fig. 2 and 3, in one embodiment, the second rotator 340 can only rotate a predetermined angle and can push the first driving member 321 and the second driving member 322 to move.

Specifically, as shown in fig. 2 and 3, the first driving element 321 and the second driving element 322 are abutted against the second rotating body 340, and the first driving element 321 and the second driving element 322 are disposed in parallel at different positions of the second rotating body 340. When the second rotator 340 rotates clockwise by a preset angle, the first driving element 321 and the second driving element 322 can respectively move in opposite directions, so that the structure is simple and reliable, the linkage is good, and the response speed of the drilling device 10 can be effectively improved.

It should be noted that, the second rotating body 340 is not limited to the clockwise rotation to push the first driving member 321 and the second driving member 322, and the rotation direction of the centrifugal member 300 can be adaptively adjusted according to the actual working requirement.

In some embodiments, the predetermined angle is 15 ° -25 °. Specifically, the preset angle may be 15 °, 17 °, 20 °, 23 °, 25 °, or the like.

Specifically, the structure of the centrifuge 300 is further defined below.

In some embodiments, the centrifugal member 300 further includes a first rod member 360 and a second rod member 370, the first rod member 360 is provided with a spring structure 361, the clamping member 310 includes a first lock tongue 311 and a second lock tongue 312, one end of each of the first lock tongue 311 and the second lock tongue 312 is connected through the first rod member 360, and the other end of each of the first lock tongue 311 and the second lock tongue 312 is connected through the second rod member 370, when the pulley member 200 rotates to reach a preset rotation speed, the first lock tongue 311 can rotate against the resistance of the spring structure 361 and drive the second lock tongue 312 to synchronously rotate to press the second rotating body 340.

As shown in fig. 2 and 3, in some embodiments, a clamping portion 340a is disposed on a side, close to the clamping member 310, of the second rotating body 340 along the circumferential direction of the second rotating body, and the first lock tongue 311 and the second lock tongue 312 are provided with a clamping structure 3101, where the clamping structure 3101 is used to be in clamping fit with the clamping portion 340a, so that the clamping effect of the clamping member 310 and the second rotating body 340 can be improved, and thus the braking effect of the drilling device 10 is ensured.

Specifically, the first lock tongue 311 and the second lock tongue 312 each have a first end 310a and a second end 310b, the first end 310a is provided with a clamping structure 3101, the clamping structure 3101 is used for being matched with the clamping portion 340a in a clamping manner, the first lock tongue 311 is close to the middle portion and is rotationally connected to the first rotating body 330, the second lock tongue 312 is close to the second end 310b and is rotationally connected to the first rotating body 330, the first end 310a of the first lock tongue 311 is connected with the second end 310b of the second lock tongue 312 through the first rod 360, the second end 310b of the first lock tongue 311 is connected with the first end 310a of the second lock tongue 312 through the second rod 370, when the pulley member 200 rotates to reach a preset rotation speed, the first end 310a of the first lock tongue 311 can overcome the resistance of the spring structure 361 and drive the first end 310a of the second lock tongue 312 to synchronously rotate to be synchronously clamped to the clamping portion 340a so as to drive the second rotating body 340 to rotate by a preset angle, and thus the synchronous braking effect of the drilling device 10 can be improved.

More specifically, referring to fig. 2, fig. 2 is a schematic structural view of the centrifuge 300 in a normal state of the drilling apparatus 10, where the spring structure 361 is in an unstretched state. Further analysis, the middle position of the first lock tongue 311, the first end 310a, and the second end 310b of the second lock tongue 312 form a triangle structure, so that the first lock tongue 311 and the second lock tongue 312 do not rotate or slightly rotate in a normal state, but do not sufficiently press the second rotator 340 to rotate. At this time, the first rod 360 acts as the same function as the second rod 370, that is, ensures that the first lock tongue 311 and the second lock tongue 312 are relatively stationary with respect to the first rotator 330, and the structure is simple and reliable.

Referring to fig. 3, fig. 3 is a schematic view of the centrifugal member 300 in a normal state of the drilling apparatus 10, where the spring structure 361 is in a stretched state. Specifically, when the pulley member 200 rotates to reach the preset rotation speed, the first locking tongue 311 and the second locking tongue 312 can rotate around the rotation points thereof under the action of a sufficient centrifugal force. More specifically, the first locking tongue 311 rotates around the middle position of the first locking tongue 311 against the pulling force of the spring structure 361 under the centrifugal force. Further, the second end 310b of the first lock tongue 311 pushes the first end 310a of the second lock tongue 312 to move, so as to achieve the effect that the first lock tongue 311 and the second lock tongue 312 synchronously abut against the clamping portion 340a of the second swivel 340.

The first locking tongue 311 and the second locking tongue 312 may be rotatably connected to the second swivel 340 by riveting or pinning. The fastening structure 3101 may be a curved hook-shaped groove structure near the first end 310a, the fastening portion 340a may be a protruding structure, and the fastening portions 340a are uniformly disposed along the circumferential direction of the second rotor 340 at intervals, where the fastening structure 3101 can be fastened to any one of the fastening portions 340a at random.

As shown in fig. 2 and 3, the centrifugal element 300 further includes a housing 350, the first rotating body 330 is disposed in the accommodating cavity of the housing 350, and the first driving element 321 and the second driving element 322 penetrate through the housing 350, so that the structure of the drilling device 10 is protected by the housing 350. It will be appreciated that for other configurations of the drilling apparatus 10, a corresponding protective housing 350 configuration should be provided.

As shown in conjunction with fig. 4 and 5, in some embodiments, the brake 400 includes a brake body 411, a rotating lever 412 and a brake block 413, wherein the rotating lever 412 is rotatably connected to the brake body 411 near a middle portion thereof, the brake block 413 is connected to one end of the rotating lever 412, and the driving member is connected to the other end of the rotating lever 412. When the pulley member 200 rotates to reach the preset rotation speed, the driving member can drive the rotating rod 412 to rotate, and the brake block 413 is close to and abuts against the pulley member 200, so that the braking effect of the brake member 400 on the pulley member 200 can be achieved.

Specifically, as shown in fig. 4 and 5, fig. 4 is a schematic structural view of the first braking member 410 in a normal state, and fig. 5 is a schematic structural view of the first braking member 410 in a braking state. The structure and the braking principle of the first braking member 410 and the second braking member 420 are the same, and only the first braking member 410 will be described below. When the pulley 200 rotates to reach the preset rotation speed, the first driving member 321 can move in a direction approaching to the rotating rod 412 and push the rotating rod 412 to rotate around the rotating member 417, so that the brake block 413 presses against the pulley 200 to brake under the lever action of the rotating rod 412. The above-described construction is simple and reliable, and by the application of leverage, the braking effect of the drilling apparatus 10 is ensured.

Further, as shown in connection with fig. 1, in some embodiments, the pulley member 200 is provided with a pulley groove 200a, and the rope 210 is wound in the pulley groove 200 a. When the pulley 200 rotates to reach the preset rotation speed, the brake block 413 can press the rope 210 in the pulley groove 200a, so that the pulley 200 and the rope 210 can be simultaneously pressed, and the braking effect is improved.

Further, as shown in fig. 4 and 5, in some embodiments, a first elastic member 414 is connected to a side of the rotating rod 412 away from the driving member, and the compression and stretching directions of the first elastic member 414 are consistent with the movement direction of the driving member, so that the brake member 400 can be kept in place under a normal state, without interfering with the rotation of the pulley member 200, and the structural stability of the brake block 413 is ensured. In addition, the first elastic member 414 can provide a certain resistance to the driving of the first driving member 321, and can cooperate with the spring structure 361, so that the design of the preset rotation speed of the pulley member 200 is more reasonable.

As shown in fig. 4 and 5, the brake body 411 is provided with a mounting portion, the brake pad 413 is mounted in the mounting portion, the brake pad 413 can move along the length direction of the mounting portion, and the brake 400 further includes a locking member 416, and the locking member 416 is telescopically connected to the brake pad 413. When the pulley member 200 rotates to reach the preset rotation speed, the brake pad 413 can move along the length direction of the vertical mounting portion, and the locking member 416 is clamped between the brake pad 413 and the brake body 411, so that the braking effect of the brake pad 413 in the braking state can be ensured.

Specifically, as shown in fig. 5, the locking member 416 is disposed at the lower portion of the brake block 413 and moves along the length direction of the vertical installation portion, so that when the brake block 413 moves rightward, the locking member 416 can move upward, so that the brake block 413 can smoothly extend out of the installation portion, when the locking member 416 completely leaves the installation portion, the locking member 416 can move downward to reset, and the movement of the brake block 413 returning into the installation portion is limited, so that the brake block 413 can always press against the pulley member 200, and the braking effect is ensured.

Further, in some embodiments, the locking member 416 has an arc surface, so that the locking member 416 can be free from the obstruction of the braking body 411 during the movement of the locking member 416 away from the mounting portion, so as to improve the movement effect of the locking member 416, thereby improving the working smoothness and reliability of the drilling device 10.

Still further, in some embodiments, the brake 400 includes a second elastic member 415, where the second elastic member 415 is used to elastically connect the locking member 416 to the brake block 413, so that the locking member 416 can elastically reset along the length direction of the vertical mounting portion, which improves the locking effect of the locking member 416 in the braking state, and further improves the braking effect of the drilling apparatus 10.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples only represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the claims. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. Accordingly, the scope of protection of the present application is to be determined by the claims appended hereto.

Claims (13)

1. The utility model provides a drilling device, its characterized in that, drilling device includes drilling rod, installation body, twine the pulley spare, centrifugation spare and the brake piece that have the rope body, the pulley spare rotationally locates the installation body, the pulley spare passes through the rope body is used for pulling the drilling rod, the centrifugation spare with the pulley spare is connected, the pulley spare can be relative the installation body rotates, the centrifugation spare can be along with pulley spare synchronous rotation, works as when the pulley spare rotates and reaches the preset rotational speed, the centrifugation spare can be driven under centrifugal force the brake piece with pulley spare offset pressure.

2. The drilling apparatus according to claim 1, wherein the centrifugal member includes a telescopic driving member, and the driving member approaches and presses against the braking member to drive the braking member against the pulley member when the rotation of the pulley member reaches a preset rotation speed.

3. Drilling apparatus according to claim 2, wherein the centrifugal member comprises a first rotor, a second rotor and a clamping member, the second rotor is arranged circumferentially around an edge portion of the first rotor, the first rotor is rotatable relative to the second rotor, the clamping member is connected to the first rotor, the first rotor is connected to the pulley member and is rotatable synchronously with the pulley member, the driving member is connected to the second rotor, and when the pulley member rotates to a preset rotational speed, the clamping member is capable of pressing against the second rotor under the action of centrifugal force and driving the second rotor to rotate by a preset angle, and the second rotor drives the driving member to approach and press against the braking member.

4. A drilling apparatus according to claim 3, wherein the predetermined angle is 15 ° -25 °.

5. A drilling device according to claim 3, wherein the centrifugal member further comprises a first rod member and a second rod member, the first rod member is provided with a spring structure, the clamping member comprises a first lock tongue and a second lock tongue, one end of each of the first lock tongue and the second lock tongue is connected through the first rod member, the other end of each of the first lock tongue and the second lock tongue is connected through the second rod member, and when the pulley member rotates to reach a preset rotation speed, the first lock tongue can rotate against the resistance of the spring structure and drive the second lock tongue to synchronously rotate so as to press against the second rotating body.

6. The drilling device according to claim 5, wherein the second swivel is provided with a clamping portion along a side of a circumferential direction thereof, which is close to the clamping member, and the first lock tongue and the second lock tongue are each provided with a clamping structure for clamping engagement with the clamping portion.

7. The drilling apparatus according to claim 2, wherein the braking member comprises a braking body, a rotating rod and a braking block, the rotating rod is rotatably connected to the braking body near a middle position thereof, the braking block is connected to one end of the rotating rod, the driving member is connected to the other end of the rotating rod, and when the pulley rotates to reach a preset rotation speed, the driving member can drive the rotating rod to rotate, and the braking block is made to approach and press against the pulley.

8. Drilling apparatus according to claim 7, wherein the pulley member is provided with a pulley groove, the rope being wound in the pulley groove, and the brake shoe being able to press against the rope in the pulley groove when the pulley member rotates to a preset rotational speed.

9. The drilling apparatus according to claim 7, wherein a first elastic member is connected to a side of the rotating rod facing away from the driving member, and a compression and extension direction of the first elastic member is identical to a movement direction of the driving member.

10. The drilling apparatus according to claim 7, wherein the brake body is provided with a mounting portion, the brake block is mounted in the mounting portion, the brake block is movable along a length direction of the mounting portion, the brake member further comprises a locking member telescopically connected to the brake block, and when the pulley member rotates to a preset rotation speed, the brake block is movable along the length direction perpendicular to the mounting portion, and the locking member is caught between the brake block and the brake body.

11. Drilling apparatus according to claim 10, wherein the brake member comprises a second resilient member for resiliently connecting the locking member to the brake shoe.

12. Drilling apparatus according to any one of claims 2-11, wherein the mounting body comprises a first beam, a first support and a second support symmetrically arranged, wherein one end of the first support and one end of the second support are connected by the first beam, and further comprises a second beam and a third beam parallel to the first beam, wherein the second beam and the third beam are connected with the middle parts of the first support and the second support, the second beam and the third beam are respectively arranged on two sides of the first support, and the pulley member is rotatably connected to the second beam and the third beam.

13. The drilling apparatus according to claim 12, wherein the number of driving members and the corresponding braking members is 2, and the 2 braking members are respectively connected to the first supporting member and the second supporting member, and when the rotation of the pulley member reaches the preset rotation speed, the 2 driving members can synchronously approach and press the 2 braking members respectively.