CN213336026U - Drilling machine hook height measuring device - Google Patents

Drilling machine hook height measuring device Download PDF

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Publication number
CN213336026U
CN213336026U CN202021461971.3U CN202021461971U CN213336026U CN 213336026 U CN213336026 U CN 213336026U CN 202021461971 U CN202021461971 U CN 202021461971U CN 213336026 U CN213336026 U CN 213336026U
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China
Prior art keywords
pulley
cross beam
distance
support
wire rope
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CN202021461971.3U
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Chinese (zh)
Inventor
王成岭
李鹰峰
李海波
白汉栋
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Sinopec Oilfield Service Corp
Sinopec Zhongyuan Petroleum Engineering Co Ltd
Drilling Engineering Technology Research Institute of Sinopec Zhongyuan Petroleum Engineering Co Ltd
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Sinopec Oilfield Service Corp
Sinopec Zhongyuan Petroleum Engineering Co Ltd
Drilling Engineering Technology Research Institute of Sinopec Zhongyuan Petroleum Engineering Co Ltd
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Application filed by Sinopec Oilfield Service Corp, Sinopec Zhongyuan Petroleum Engineering Co Ltd, Drilling Engineering Technology Research Institute of Sinopec Zhongyuan Petroleum Engineering Co Ltd filed Critical Sinopec Oilfield Service Corp
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Abstract

The utility model discloses a drilling machine hook height measuring device, which comprises a support longitudinal beam, a first beam, a second beam and an elastic part, wherein the first beam is provided with a measuring pulley, the second beam is provided with a rope blocking pulley, and the first beam and the second beam are fixed in position, so that a steel wire rope is clamped between the measuring pulley and the rope blocking pulley, and the steel wire rope is prevented from being irregularly arranged; the first cross beam and the second cross beam are slidably arranged on the supporting cross beam, the elastic piece is elastically abutted against the first cross beam, so that the steel wire rope is ensured to be tightly attached to the measuring pulley in the process that the first cross beam synchronously slides along with the second cross beam, the steel wire rope is ensured to continuously drive the measuring pulley to rotate in the lifting process, the rotating speed of the measuring pulley can be accurately detected by the rotating speed detecting piece arranged on the measuring pulley, and an accurate detection result is obtained. The utility model discloses can enough acquire accurate testing result, can avoid wire rope to arrange irregularly again, reduce the high unsafe unfavorable factor who causes the big hook, be favorable to acquireing accurate big hook height.

Description

Drilling machine hook height measuring device
Technical Field
The utility model relates to a rig field, in particular to rig hook height measurement device.
Background
The hook of the drilling machine can realize the functions of pulling and running a drilling tool, running a casing pipe and the like through lifting, the height of the hook affects key engineering parameters such as the position of a drill bit, the well depth, the speed of a traveling block, the drilling speed, the drilling time and the like, and the hook is an important basis for the safety control of crown block collision prevention, the automatic drilling feeding control of drilling and the parameter monitoring of the drilling process, so that the accurate acquisition of the height of the hook is particularly necessary.
The height of the existing hook is usually obtained through a winch encoder arranged at the low-speed end of a winch central shaft, an angular speed signal of the winch is converted into an electric signal by the winch encoder, the electric signal is converted into a pulse signal, and the height of the hook is calculated through obtaining the number of pulses. However, the problem of irregular rope arrangement such as rope disorder and rope clamping is easily caused in the detection process of the steel wire rope wound on the winch drum, and particularly in the quick tripping operation stage, once the rope arrangement of the steel wire rope is irregular, the number of strands of the steel wire rope, the initial circle of the steel wire rope, the current circle of the steel wire rope and other related parameters are inaccurate, and the height of the big hook at the position cannot be accurately counted according to the number of pulses.
Therefore, how to accurately calculate the height of the hook is a technical problem to be solved by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
In view of the above, an object of the present invention is to provide a drilling machine hook height measuring device, wherein a steel wire rope is clamped between a measuring pulley and a rope stopping pulley, so as to avoid the steel wire rope from being arranged irregularly; the first cross beam provided with the measuring pulley abuts against the elastic part, so that the steel wire rope keeps clinging to the measuring pulley, the steel wire rope is ensured to continuously drive the measuring pulley to rotate, the detection result of the rotating speed detection part is accurate, adverse factors are fully eliminated, and the accurate height of the large hook is obtained.
The utility model provides a rig hook height measurement device, include:
at least one support stringer;
the first cross beam and the second cross beam are slidably arranged on the support longitudinal beam and are respectively and correspondingly provided with a measuring pulley and a rope blocking pulley so as to enable the steel wire rope to be clamped between the measuring pulley and the rope blocking pulley, and the measuring pulley is fixedly provided with a rotating speed detection piece;
and the elastic part is arranged on the support longitudinal beam and elastically propped against the first cross beam so that the steel wire rope is tightly attached to the measuring pulley.
Preferably, the supporting beam is provided with a lower stop block and an upper stop block which respectively correspondingly limit the sliding positions of the first beam and the second beam, and the elastic piece is abutted between the lower stop block and the first beam.
Preferably, the measuring pulley is slidably sleeved on the first cross beam, the rope blocking pulley is slidably sleeved on the second cross beam, the first cross beam is provided with a group of first left stop blocks and first right stop blocks for limiting the sliding position of the measuring pulley, and the second cross beam is provided with a group of second left stop blocks and second right stop blocks for limiting the sliding position of the rope blocking pulley.
Preferably, the device further comprises a support sliding sleeve which is slidably sleeved on the first cross beam and is used for supporting the measuring pulley to slide, and a support bearing which is arranged between the support sliding sleeve and the measuring pulley and is used for supporting the measuring pulley to rotate relative to the support sliding sleeve, wherein an oil injection end cover and a stop end cover which are correspondingly abutted against two ends of the support bearing so as to axially limit the support bearing are fixedly arranged at two ends of the support sliding sleeve respectively.
Preferably, a limiting block and a limiting groove which are matched with each other and used for limiting the circumferential rotation of the support sliding sleeve relative to the first beam are arranged between the support sliding sleeve and the first beam.
Preferably, the distance adjusting device further comprises a distance adjusting assembly arranged between the first cross beam and the second cross beam to adjust the distance between the first cross beam and the second cross beam.
Preferably, the distance adjustment assembly comprises:
the first threaded sleeve is fixedly connected with the first cross beam;
the second threaded sleeve is fixedly connected with the second cross beam;
and the connecting screw rod is connected between the first threaded sleeve and the second threaded sleeve so as to adjust the distance between the first threaded sleeve and the second threaded sleeve through rotation, and is provided with a locking nut.
Preferably, the distance adjustment assembly comprises:
the telescopic cylinder is fixedly arranged between the first cross beam and the second cross beam;
a distance detecting member for detecting a current distance between the first beam and the second beam;
the controller is respectively connected with the telescopic rod and the distance detection piece and used for controlling the telescopic cylinder to stretch until the current distance is consistent with the preset distance according to the signal sent by the distance detection piece when the current distance is inconsistent with the preset distance.
Preferably, the device also comprises an indicator light and a pressure detection piece which are respectively connected with the controller, the pressure detection piece is used for detecting the current pressure between the measuring pulley and the steel wire rope, and the controller is used for starting the indicator light to display red light when the current pressure is lower than the preset pressure according to a signal sent by the pressure detection piece.
Preferably, the supporting cross beam comprises a first longitudinal beam and a second longitudinal beam which are arranged in parallel, and the first cross beam and the second cross beam are respectively arranged between the first longitudinal beam and the second longitudinal beam.
Compared with the prior art, the utility model provides a height measuring device for a drilling machine hook comprises a support longitudinal beam, a first beam, a second beam and an elastic part, wherein the first beam is provided with a measuring pulley, the second beam is provided with a rope blocking pulley, and the first beam and the second beam are fixed in position, so that a steel wire rope is clamped between the measuring pulley and the rope blocking pulley, and the steel wire rope is prevented from being irregularly arranged; the first cross beam and the second cross beam are slidably arranged on the supporting cross beam, the elastic piece is elastically abutted against the first cross beam, so that the steel wire rope is ensured to be tightly attached to the measuring pulley in the process that the first cross beam synchronously slides along with the second cross beam, the steel wire rope is ensured to continuously drive the measuring pulley to rotate in the lifting process, the rotating speed of the measuring pulley can be accurately detected by the rotating speed detecting piece arranged on the measuring pulley, and an accurate detection result is obtained. According to the above, the utility model discloses can enough acquire accurate testing result, can avoid wire rope to arrange irregularly again, reduce the high unsafe unfavorable factor that causes the big hook, be favorable to acquireing accurate big hook height.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required 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 embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a drilling machine hook height measuring device according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view of the measuring pulley of FIG. 1;
fig. 3 is a side view of fig. 2.
The reference numbers are as follows:
a wire rope 01;
the device comprises a supporting seat 1, a first longitudinal beam 21, a second longitudinal beam 22, a first cross beam 31, a second cross beam 32, a measuring pulley 4, a rope blocking pulley 5, a rotating speed detection part 6, an elastic part 7 and a distance adjusting assembly 8;
an upper stopper 211 and a lower stopper 212;
a first sliding sleeve 310, a first left stop 311 and a first right stop 312;
a second sliding bush 320, a second left stopper 321 and a second right stopper 322;
a support sliding sleeve 41, a support bearing 42, an oil injection end cover 43, a stop end cover 44, a connecting sleeve 45 and a limiting block 46;
a first threaded sleeve 81, a second threaded sleeve 82 and a connecting screw 83.
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 work belong to the protection scope of the present invention.
In order to make the technical field of the present invention better understand, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1 to 3, fig. 1 is a schematic structural diagram of a drilling machine hook height measuring device according to an embodiment of the present invention; FIG. 2 is a cross-sectional view of the measuring pulley of FIG. 1; fig. 3 is a side view of fig. 2.
The embodiment of the utility model discloses high measuring device of rig hook, including at least one support longeron, first crossbeam 31, second crossbeam 32 and elastic component 7.
The support longitudinal beams comprise a first longitudinal beam 21 and a second longitudinal beam 22 which are arranged in parallel, and a first transverse beam 31 and a second transverse beam 32 are arranged between the first longitudinal beam 21 and the second longitudinal beam 22 in parallel. In this embodiment, two ends of the first longitudinal beam 21 and the second longitudinal beam 22 are respectively fixed to the support base 1. The supporting seat 1 is a square frame which is built by four sectional materials which are vertically connected end to end in sequence.
The first cross member 31 and the second cross member 32 are slidably mounted to the support side members. In this embodiment, the first sliding sleeves 310 are respectively fixedly disposed at two ends of the first cross beam 31, and the first sliding sleeves 310 are slidably mounted on the first longitudinal beam 21 and the second longitudinal beam 22 for supporting the first cross beam 31 to slide along the first longitudinal beam 21 and the second longitudinal beam 22. Similarly, a second sliding sleeve 320 is fixedly arranged at each end of the second cross beam 32, and the second sliding sleeve 320 is slidably mounted on the first longitudinal beam 21 and the second longitudinal beam 22 for supporting the second cross beam 32 to slide along the first longitudinal beam 21 and the second longitudinal beam 22.
Be equipped with on the first crossbeam 31 and measure pulley 4, second crossbeam 32 is equipped with and keeps off rope pulley 5, measures pulley 4 and keeps off rope pulley 5 and all have the grooving that is used for holding wire rope 01. The position between first crossbeam 31 and the second crossbeam 32 is relatively fixed, and measures pulley 4 and keeps off rope pulley 5 and set up relatively, measures pulley 4 and keeps off the rope groove alright formation of rope pulley 5 the two and be used for holding chamber of wire rope 01, makes wire rope 01 press from both sides between measuring pulley 4 and fender rope pulley 5, prevents that wire rope 01 from arranging irregularly, eliminates wire rope 01 and arranges irregularly to the influence of big hook height.
In addition, the measuring pulley 4 is fixedly provided with a rotation speed detecting member 6 so as to detect the rotation speed of the measuring pulley 4 by the rotation speed detecting member 6. The rotation speed detecting member 6 may be an encoder, but is not limited thereto.
On elastic component 7 located the support longeron, elastic component 7 offseted with first crossbeam 31 elasticity, makes first crossbeam 31 keep pressing to wire rope 01 along the second crossbeam 32 when sliding along supporting the longeron, makes wire rope 01 hug closely measuring pulley 4 to ensure that wire rope 01 can sustainable drive measuring pulley 4 and rotate at the promotion in-process, guarantee to locate the rotational speed that rotational speed detection piece 6 on measuring pulley 4 can accurately detect measuring pulley 4, acquire accurate testing result.
In this embodiment, the elastic member 7 is embodied as two ordinary cylindrical springs respectively sleeved on the first longitudinal beam 21 and the second longitudinal beam 22, and the elastic member 7 is always kept in a compressed state. Of course, the structure of the elastic member 7 is not limited thereto.
To sum up, the utility model provides a rig hook height measuring device can enough acquire accurate testing result, can avoid wire rope 01 to arrange irregularly again, reduces the high unsafe adverse factor that causes the hook, is favorable to acquireing accurate hook height.
In order to limit the sliding of the first beam 31 and the second beam 32, the supporting beam is provided with an upper stop 211 and a lower stop 212, the lower stop 212 is used for limiting the sliding position of the first beam 31, and the upper stop 211 is used for limiting the sliding position of the second beam 32. In this embodiment, the first longitudinal beam 21 and the second longitudinal beam 22 are respectively provided with a set of upper stop 211 and lower stop 212, and the first cross beam 31 and the second cross beam 32 are arranged between the upper stop 211 and the lower stop 212. The upper stop block 211 and the lower stop block 212 are detachably fixed on the support longitudinal beam through fastening screws, so that the assembly and disassembly are convenient.
The elastic member 7 abuts between the lower stop 212 and the first beam 31, and specifically, the elastic member 7 abuts between the lower stop 212 and the first runner 310.
The measuring pulley 4 is slidably sleeved on the first cross beam 31, and the rope blocking pulley 5 is slidably sleeved on the second cross beam 32, so that the positions of the measuring pulley 4 and the rope blocking pulley 5 can move along with the swinging of the steel wire rope 01 conveniently, and the measuring pulley 4 and the rope blocking pulley 5 can flexibly move along with the steel wire rope 01 conveniently.
In order to define the sliding position of the measuring pulley 4, the first beam 31 is provided with a set of first left stopper 311 and first right stopper 312 for defining the sliding position of the measuring pulley 4, and both the first left stopper 311 and the first right stopper 312 are detachably fixed to the first beam 31 by fastening screws. Similarly, to define the sliding position of the stopper rope pulley 5, the second cross member 32 is provided with a set of a second left stopper 321 and a second right stopper 322 for defining the sliding position of the stopper rope pulley 5, and both the second left stopper 321 and the second right stopper 322 are detachably fixed to the second cross member 32 by fastening screws. First left dog 311, first right dog 312, second left dog 321 and second right dog 322 all are preferably the elastic block, for example the block rubber, prevent to take place rigid collision with measuring pulley 4 or fender rope pulley 5, are favorable to making an uproar and prolonging the life of pulley.
The utility model discloses still including supporting sliding sleeve 41 and support bearing 42, supporting sliding sleeve 41 slidable ground overlaps on first crossbeam 31, makes supporting sliding sleeve 41 support measuring pulley 4 slide along first crossbeam 31. The supporting bearing 42 is disposed between the supporting sliding sleeve 41 and the measuring pulley 4, and is used for supporting the measuring pulley 4 to rotate relative to the supporting sliding sleeve 41. The type of support bearing 42 is not limited herein.
In order to axially limit the support bearing 42, an oil injection end cap 43 and a stop end cap 44 are respectively fixedly arranged at two ends of the support sliding sleeve 41, and the oil injection end cap 43 and the stop end cap 44 are respectively and correspondingly abutted against two ends of the support bearing 42. The oil injection end cover 43 is provided with an oil injection port, so that lubricating oil can be conveniently added to the support bearing 42 at regular intervals. The oil injection end cap 43 and the stopper end cap 44 may be fixed to both ends of the measuring pulley 4 by fastening screws.
The rotating speed detection part 6 is fixedly connected with the measuring pulley 4 through a connecting sleeve 45. The periphery of the connecting sleeve 45 is in a step shape, one end of the connecting sleeve is fixedly connected with the abutting sleeve integrally arranged at the end part of the measuring pulley 4, and the other end of the connecting sleeve is fixedly connected with a central hole of the rotating speed detecting piece 6. The connecting sleeve 45 and the abutting sleeve and the connecting sleeve 45 and the central hole of the rotating speed detecting part 6 are in interference connection.
In order to prolong the service life of the supporting sliding sleeve 41, a limit block 46 and a limit groove which are matched with each other are arranged between the supporting sliding sleeve 41 and the first cross beam 31, so that the supporting sliding sleeve 41 is limited to rotate relative to the first cross beam 31, and the abrasion of the supporting sliding sleeve 41 is reduced. In this embodiment, the limiting block 46 is a rectangular key block integrally disposed on the first beam 31 and extending along the length direction of the first beam 31, and the limiting groove is a rectangular groove disposed in the center of the supporting sliding sleeve 41. Of course, the arrangement positions of the interchanging limit blocks 46 and the limit grooves do not affect the realization of the purpose of the utility model.
The rope-blocking pulley 5 is mounted in a manner that can be referred to the measuring pulley 4, and will not be described in detail.
For making wire rope 01 keep pressing from both sides between measuring pulley 4 and fender rope pulley 5, the utility model discloses still including locating the roll adjustment subassembly 8 between first crossbeam 31 and the second crossbeam 32 for adjust the distance between first crossbeam 31 and the second crossbeam 32, and lock first crossbeam 31 and second crossbeam 32 when the distance of first crossbeam 31 and second crossbeam 32 reaches the ideal distance, make first crossbeam 31 and second crossbeam 32 keep relatively fixed.
The distance adjusting assembly 8 may be a pure mechanical structure, and the distance adjusting assembly 8 includes a first threaded sleeve 81, a second threaded sleeve 82 and a connecting screw 83, wherein the first threaded sleeve 81 is fixedly connected with the first beam 31, and the first threaded sleeve 81 is specifically fixedly connected with the first sliding sleeve 310. The second threaded sleeve 82 is fixedly connected with the second beam 32, and the second threaded sleeve 82 is fixedly connected with the second sliding sleeve 320. The connection screw 83 is connected between the first thread insert 81 and the second thread insert 82. When the connection screw 83 is rotated, the first threaded sleeve 81 and/or the second threaded sleeve 82 moves along the connection screw 83, so that the distance between the first threaded sleeve 81 and the second threaded sleeve 82, and thus the distance between the first beam 31 and the second beam 32, is adjusted. In order to fix the positions of the first beam 31 and the second beam 32 relatively, the connecting screw 83 is provided with a locking nut, when the distance between the first beam 31 and the second beam 32 is adjusted to a desired distance, the locking nut is arranged on the connecting screw 83 to limit the rotation of the connecting screw 83, so that the distance between the first beam 31 and the second beam 32 is kept constant.
Certainly, the distance adjusting assembly 8 may also be an electronic control structure, the distance adjusting assembly 8 includes a controller, and a telescopic cylinder and a distance detecting member respectively connected to the controller, the telescopic cylinder is fixedly disposed between the first beam 31 and the second beam 32, the telescopic cylinder may be a small cylinder, and a cylinder barrel and a piston rod of the small cylinder are respectively and correspondingly and fixedly connected to the first sliding sleeve 310 and the second sliding sleeve 320. The distance detector is used to detect the current distance between the first beam 31 and the second beam 32, and may be a displacement sensor, but is not limited thereto.
When the distance detection part detects that the current distance between the first cross beam 31 and the second cross beam 32 is inconsistent with the preset distance, the distance detection part sends a signal to the controller, and the controller controls the telescopic cylinder to automatically extend and retract so as to automatically increase or reduce the distance between the first cross beam 31 and the second cross beam 32 until the current distance is consistent with the preset distance. The predetermined distance may be previously inputted to the controller through the manipulation panel and the keyboard according to the type of the measuring pulley 4.
Further, the utility model discloses still including the pilot lamp and the pressure measurement spare that link to each other with the controller respectively, the pilot lamp specifically is the LED lamp, can send ruddiness or green glow. The pressure detecting member is used to detect the current pressure between the measuring pulley 4 and the wire rope 01, and may be a pressure sensor, but is not limited thereto.
When the pressure detection part detects that the current pressure between the measuring pulley 4 and the steel wire rope 01 is lower than the preset pressure, the friction force between the steel wire rope 01 and the measuring pulley 4 is too small, the steel wire rope 01 has the risk that the measuring pulley 4 cannot be driven to rotate, the pressure detection part sends a signal to the controller, and the controller controls the indicator lamp to display red light to remind an operator to check whether the elastic part 7 and the distance adjusting assembly 8 work or not; when the pressure detection piece detects that the current pressure between the measuring pulley 4 and the steel wire rope 01 is equal to or higher than the preset pressure, the friction force between the steel wire rope 01 and the measuring pulley 4 is enough to enable the steel wire rope 01 to drive the measuring pulley 4 to rotate, the pressure detection piece sends a signal to the controller, and the controller controls the indicator lamp to display a green light to remind an operator that all parts work normally.
It should be noted that the controller includes a signal receiving portion, a signal determining portion and a signal transmitting portion, the signal receiving portion is used for receiving an electrical signal transmitted by a detecting member such as a distance detecting member or a pressure detecting member, the signal determining portion is electrically connected to the receiving portion so that the signal determining portion is used for determining whether the signal received by the receiving portion is a trigger signal, and the signal transmitting portion is electrically connected to the signal determining portion so that the signal transmitting portion transmits a determination signal generated by the signal determining portion to an actuating member such as a distance adjusting assembly 8 or an indicator light. The specific arrangement mode of the signal receiving part, the signal judging part and the signal sending part can refer to the prior art; in the utility model, only the application scene of the three is changed, but not the substantial improvement is carried out. Obviously, the controller with the structure is widely applied to the existing automatic control equipment, such as an MCU, a DSP or a single chip microcomputer. The utility model discloses a key point lies in, the controller corresponds each detection piece and each executive component and combines together.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. A drilling machine hook height measuring device is characterized by comprising:
at least one support stringer;
the first cross beam (31) and the second cross beam (32) are slidably arranged on the support longitudinal beam and are respectively and correspondingly provided with a measuring pulley (4) and a rope blocking pulley (5) so that a steel wire rope (01) is clamped between the measuring pulley (4) and the rope blocking pulley (5), and the measuring pulley (4) is fixedly provided with a rotating speed detection piece (6);
and the elastic part (7) is arranged on the support longitudinal beam and elastically abuts against the first cross beam (31) so that the steel wire rope (01) is tightly attached to the measuring pulley (4).
2. Drilling machine hook height measuring device according to claim 1, characterized in that the support stringer is provided with a lower stop (212) and an upper stop (211) respectively corresponding to the sliding position defining the first cross beam (31) and the second cross beam (32), the elastic member (7) abutting between the lower stop (212) and the first cross beam (31).
3. Drilling machine hook height measuring device according to claim 2, characterized in that the measuring pulley (4) is slidably sleeved on the first beam (31), the rope stopping pulley (5) is slidably sleeved on the second beam (32), the first beam (31) is provided with a set of a first left stopper (311) and a first right stopper (312) for defining the sliding position of the measuring pulley (4), and the second beam (32) is provided with a set of a second left stopper (321) and a second right stopper (322) for defining the sliding position of the rope stopping pulley (5).
4. The drilling machine hook height measuring device according to claim 2, further comprising a support sliding sleeve (41) slidably sleeved on the first cross beam (31) and used for supporting the measuring pulley (4) to slide, and a support bearing (42) arranged between the support sliding sleeve (41) and the measuring pulley (4) to support the measuring pulley (4) to rotate relative to the support sliding sleeve (41), wherein an oil injection end cover (43) and a stop end cover (44) are respectively and fixedly arranged at two ends of the support sliding sleeve (41) and correspondingly abut against two ends of the support bearing (42) to axially limit the support bearing (42).
5. Drilling machine hook height measuring device according to claim 4, characterized in that a limiting block (46) and a limiting groove are provided between the support sliding sleeve (41) and the first beam (31), which cooperate with each other and are used for limiting the circumferential rotation of the support sliding sleeve (41) relative to the first beam (31).
6. The drilling machine hook height measuring device according to any one of claims 2 to 4, further comprising a distance adjusting assembly (8) provided between the first beam (31) and the second beam (32) to adjust a distance therebetween.
7. Rig hook height measuring device according to claim 6, characterized in that the distance adjustment assembly (8) comprises:
a first threaded sleeve (81) fixedly connected with the first cross beam (31);
a second threaded sleeve (82) fixedly connected with the second cross beam (32);
and the connecting screw rod (83) is connected between the first threaded sleeve (81) and the second threaded sleeve (82) so as to adjust the distance between the first threaded sleeve and the second threaded sleeve through rotation, and the connecting screw rod (83) is provided with a locking nut.
8. Rig hook height measuring device according to claim 6, characterized in that the distance adjustment assembly (8) comprises:
the telescopic cylinder is fixedly arranged between the first cross beam (31) and the second cross beam (32);
a distance detection piece for detecting a current distance between the first beam (31) and the second beam (32);
and the controller is used for controlling the telescopic cylinder to stretch until the current distance is consistent with the preset distance according to a signal sent by the distance detection piece when the current distance is inconsistent with the preset distance.
9. The drilling machine hook height measuring device according to claim 8, further comprising an indicator light and a pressure detecting member respectively connected to the controller, wherein the pressure detecting member is used for detecting the current pressure between the measuring pulley (4) and the steel wire rope (01), and the controller is used for starting the indicator light to display red light when the current pressure is lower than a preset pressure according to a signal sent by the pressure detecting member.
10. Drilling machine hook height measuring device according to any one of claims 2 to 4, characterized in that the support longitudinal beam comprises a first longitudinal beam (21) and a second longitudinal beam (22) arranged in parallel, the first cross beam (31) and the second cross beam (32) each being fitted between the first longitudinal beam (21) and the second longitudinal beam (22), respectively.
CN202021461971.3U 2020-07-22 2020-07-22 Drilling machine hook height measuring device Active CN213336026U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202021461971.3U CN213336026U (en) 2020-07-22 2020-07-22 Drilling machine hook height measuring device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202021461971.3U CN213336026U (en) 2020-07-22 2020-07-22 Drilling machine hook height measuring device

Publications (1)

Publication Number Publication Date
CN213336026U true CN213336026U (en) 2021-06-01

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202021461971.3U Active CN213336026U (en) 2020-07-22 2020-07-22 Drilling machine hook height measuring device

Country Status (1)

Country Link
CN (1) CN213336026U (en)

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