WO2023273319A1 - Iron roughneck having thread compound applying device - Google Patents

Abstract

An iron roughneck having a thread compound applying device (1). The iron roughneck comprises a clamp assembly (3) for clamping a target drilling tool (6), wherein the thread compound applying device (1) is arranged on the clamp assembly (3); the thread compound applying device (1) comprises a lifting oil cylinder (11) and a rotating oil cylinder (12); a nozzle assembly (14) is arranged on the rotating oil cylinder (12); the lifting oil cylinder (11) can drive the rotating oil cylinder (12) to move in a rising and falling manner; and the rotating oil cylinder (12) can drive the nozzle assembly (14) to move in a horizontal rotation manner.

Description

An iron driller with a thread oil applicator

This application claims the priority of the Chinese patent application submitted to the China Patent Office on June 30, 2021, with the application number 202110741274.6, and the title of the invention is "An iron driller with a screw oil application device", the entire content of which is incorporated by reference incorporated in this application.

technical field

The invention belongs to the technical field of oil and gas exploitation, and in particular relates to an iron driller with a threaded oil smearing device.

Background technique

In the field of oil and gas extraction technology, the iron driller is a safe, efficient, and highly technically integrated drilling and workover drilling tool make-up or break-out operation equipment. Because of its high work efficiency and good work stability, it is widely used in oil and gas fields It is widely used in the drilling process.

The iron driller generally consists of a column slewing assembly, a support arm assembly, a pliers assembly and a spinner assembly. One end of the support arm assembly is connected to the column rotation assembly, and the other end is connected to the pliers body assembly. The spinner assembly is arranged on the pliers body assembly; and the column rotation assembly can drive the support arm assembly to lift and rotate. The support arm assembly can drive the caliper body assembly and the spinner assembly to expand and contract. When the iron driller is working, the spinner clamps one drilling tool, the pliers body assembly clamps another drilling tool, and then makes up or breaks out the two drilling tools.

Drilling tools are an important part of the connection between the ground and the downhole. During the drilling process, the drilling tools are used to transmit torque to the drill bit and transport drilling fluid to the bottom of the well. Therefore, the drilling tools are subjected to huge internal and external pressure, twisting, bending and vibration. The drilling tools are connected by threads. In order to prevent the threads from sticking and rusting, and to avoid over-tightening, grease should be applied to the thread codes of the drilling tools before threaded connections.

Thread oil is a kind of grease. The main purpose of the thread oil is to prevent the burning of the drill bit and the aging and wear of the connecting parts of the drill pipe when the drill pipe is drilled. At present, the main method of applying grease to the drill thread is to manually use a brush to apply grease to the surface of the thread. Moreover, the existing iron drillers only perform on-and-off operations on the drilling tool, and before the drilling tool is hooked up, it is also necessary to manually smear the drilling tool with thread oil.

And the method of this manually smearing grease is labor-intensive for the workman, easily causes the drilling operation efficiency to be low, and then causes the drilling cost to increase.

Contents of the invention

The purpose of the present invention is to, in view of the prior art, the existing iron driller only performs the operation of making up and breaking out the drilling tool, and before the drilling tool is screwed up, it is also necessary to manually smear the drilling tool with screw thread oil, thereby In order to solve the problems of low drilling efficiency and increased drilling cost, an iron driller with threaded oil smearing device is provided, which can automatically lubricate the grease on the thread of the drilling tool before making up and breaking out the drilling tool. surface.

In order to realize the above-mentioned purpose of the invention, the present invention provides the following technical solutions:

An iron driller with a screw thread oil application device, comprising a pliers body assembly for clamping a target drilling tool, the thread thread oil application device is arranged on the pliers body assembly, and the thread thread oil application device includes A lifting cylinder and a rotating cylinder, the rotating cylinder is provided with a nozzle assembly, the lifting cylinder can drive the rotating cylinder to move up and down, and the rotating cylinder can drive the nozzle assembly to rotate horizontally.

The invention provides an iron driller with a thread oil application device. The thread oil application device includes a lifting oil cylinder and a rotating oil cylinder. The lifting oil cylinder is installed on the clamp body assembly of the iron driller, and a nozzle assembly is arranged on the rotating oil cylinder. . It should be noted that after the lifting cylinder is installed on the caliper body assembly, the output shaft of the lifting cylinder should be in a vertical state. When the present invention is working, the clamp body assembly clamps the drilling tool, and then the lifting cylinder in the threaded oil application device drives the rotating oil cylinder to perform lifting movement. Since the nozzle assembly is arranged on the rotating oil cylinder, the nozzle assembly can follow the rotation cylinder. Lifting movement. At the same time, the rotary oil cylinder in the screw thread oil application device independently drives the spray head assembly to perform horizontal rotary motion. Then, after clamping the drilling tool by the clamp body assembly, the nozzle assembly can be positioned on the thread surface of the drilling tool through the synergistic effect of the lifting cylinder and the rotating cylinder, and then the nozzle assembly can be delivered to the nozzle assembly to lubricate the thread of the drilling tool. surface.

Therefore, the present invention can automatically lubricate the grease on the threaded surface of the drill before the iron driller performs the screw-on and break-out operations on the drill, thereby avoiding the operator from manually applying grease to the thread surface of the drill, and further The efficiency of drilling operation can be improved, and the cost of drilling can be reduced.

In addition, although there are thread oil automatic application devices on the market, most of the existing thread oil application devices are installed on the mud explosion-proof box or the drill floor, and the structure of the iron driller is relatively complicated, and the precision of the iron driller The requirements are relatively high, so it is basically not considered to integrate the thread oil automatic application device on the iron driller, but the present invention breaks the traditional method of thread oil application. In the present invention, by utilizing the characteristics of the clamp body assembly to clamp the drilling tool, the thread oil application device is cleverly arranged on the clamp body assembly, and the lifting oil cylinder and the rotary oil cylinder are separately arranged on the thread thread oil application device, The driving device on the screw thread oil smearing device is separated from the driving device on the iron driller, thereby helping to ensure the stability of the iron driller's own work and the accuracy requirements of the iron driller when working. At the same time, integrating the thread oil application device on the iron driller can make the structure of the iron driller relatively compact, which is conducive to increasing the space on the drill floor.

Further, the lifting cylinder is fixedly connected with the caliper body assembly, the rotating cylinder is installed on the output end of the lifting cylinder, the output end of the rotating cylinder is provided with a rotating mount, and the spray head assembly It is connected with the rotary oil cylinder through the rotary mount.

Preferably, the lifting oil cylinder is detachably mounted on the caliper body assembly through a lifting mounting seat. Through the above-mentioned structure, it is convenient to disassemble and assemble the screw thread oil application device, and further facilitate the inspection and maintenance of the present invention at a later stage.

Further, the spray head assembly is connected to the rotation mount through the rotation energy reduction assembly, and the connection between the rotation energy reduction assembly and the spray head assembly is provided with an axial limiter, and the axial limiter It is used to prevent the rotation energy reduction assembly from entering into the drilling tool; the rotation energy reduction assembly includes a rotation shaft and an energy reduction element, the rotation shaft can drive the nozzle assembly to rotate, and the energy reduction element is used to buffer the The energy when the axial limiter contacts the drilling tool.

When using the present invention, the position of the nozzle assembly is adjusted through the lifting cylinder and the rotating cylinder, so that the nozzle assembly is located directly above the drilling tool, and then the nozzle assembly and the rotating energy-reducing assembly are lowered as a whole through the lifting cylinder, and the nozzle assembly enters the drill. inside. The nozzle assembly is connected to the rotating shaft of the rotary energy-reducing component through an axial limiter, and the axial limiter can prevent the rotary energy-reducing component from entering the drilling tool, and then by adjusting the position of the axial limiter, To adjust the position of the nozzle assembly in the drilling tool. The rotation of the rotating shaft of the rotating energy-reducing assembly can drive the spray head assembly to rotate, and then the spray head assembly can better smear the lubricating grease on the threaded surface of the drilling tool.

In addition, under the action of the lifting cylinder, both the rotating energy-reducing assembly and the nozzle assembly move towards the position of the drilling tool. After the nozzle assembly enters the set position in the drilling tool, the axial limiter will touch the end surface of the drilling tool. Due to the continuous action of the lifting cylinder, the axial limiter will collide with the end face of the drilling tool. However, the present invention is provided with an energy-reducing element on the rotating energy-reducing assembly, and then the energy-reducing element can be used to reduce the energy of collision when the axial limiter contacts the end face of the drilling tool; thus when lubricating the drilling tool, the present invention can Reduces damage to drill tool end faces.

Further, the rotation energy reduction assembly further includes a first guide sleeve sleeved on the outside of the rotation shaft, the first guide sleeve is fixedly connected to the rotation mount, and the spray head assembly is connected to the rotation shaft. One end of the shaft is connected, and the energy-reducing element is located between the first guide sliding sleeve and the axial limiter; the first guide sliding sleeve can move in the axial direction of the rotating shaft, and When the first guiding sliding sleeve moves in the axial direction of the rotating shaft relative to the rotating shaft, relative rotation can occur between the first guiding sliding sleeve and the rotating shaft.

In the present invention, the rotating energy-reducing component is designed as a downward-pressing and rotating structure, and the energy-reducing element is used to buffer the collision energy between the axial limiter and the end face of the drilling tool, so that the spray head component can better spread the lubricating grease On the thread surface of the drilling tool, and can reduce the damage to the end face of the drilling tool.

Further, the energy-reducing component is a spring, and the spring is sleeved on the rotating shaft; the rotating energy-reducing component further includes a sliding pin, and the rotating shaft is provided with a screw hole, and the screw hole is along the The axial spiral of the rotating shaft is arranged, the peripheral wall of the first guide sliding sleeve is provided with a mounting hole, the sliding pin is located in the mounting hole, and the first guiding sliding sleeve is connected to the sliding pin through the The rotating shafts are connected, and the sliding pin can slide in the screw hole.

With the above structure, when the slide pin slides in the screw hole, the first guide sleeve can move relative to the rotation shaft in the axial direction of the rotation shaft, and when the first guide sleeve moves on the rotation shaft, the first guide Relative rotation is possible between the sliding sleeve and the rotating shaft.

Further, the rotation energy reduction assembly also includes a rotation drive device, the rotation drive device is fixedly connected to the rotation mount, one end of the rotation shaft is connected to the spray head assembly, and the other end passes through the energy reduction element It is connected with the output end of the rotary drive device.

The rotation energy reduction assembly of the present invention includes a rotation drive device, so that the rotation shaft can be driven to rotate through the rotation drive device; and the energy reduction element is used to buffer the collision energy between the axial limiter and the end face of the drilling tool, and then can The spray head assembly can better spread the grease on the thread surface of the drill, and can reduce the damage to the end face of the drill.

Further, the energy-absorbing element is connected to the rotary drive device through a cover plate, and the cover plate includes an upper cover plate fixedly connected to the rotary drive device and a lower cover plate fixedly connected to the energy-absorbing assembly; Between the upper cover plate and the lower cover plate, one of the cover plates is provided with a circumferential limiter, and the other cover plate is provided with a limit card slot adapted to the circumferential limiter .

Through the above-mentioned structure, the disassembly and assembly between the energy-reducing element and the rotary driving device are facilitated, thereby facilitating the maintenance or replacement of the energy-reducing element and the rotary driving device.

Further, the rotation energy reduction assembly further includes a second guide sliding sleeve fixedly connected to the lower cover, the energy reduction element is a spring, one end of the spring is fixedly connected to the rotation shaft, and the other end is connected to the rotation shaft. The lower cover plate is fixedly connected, the rotating shaft and the spring are located inside the second guide sliding sleeve, and the rotating shaft is keyed to the second guiding sliding sleeve, and the second guiding sliding sleeve The inner wall of the sleeve is provided with key grooves along its axial direction. Through the above structure, the rotation driving device can not only drive the spray head assembly to rotate through the rotating shaft, but also make the rotating shaft slide relative to the second guiding sliding sleeve in the axial direction of the second guiding sliding sleeve.

Further, the second guide sliding sleeve is provided with a sensor for detecting the rotational displacement of the spray head assembly. Through the above structure, it is convenient to accurately control the rotational displacement of the nozzle assembly in the drilling tool; at the same time, through the above structure, it can be detected whether the nozzle assembly rotates relative to the rotating shaft during the working process.

Further, the spray head assembly is provided with a first connecting plate, the rotating shaft is provided with a second connecting plate, the axial limiting member includes a snapping plate, and the snapping plate is provided with a snapping groove , the sum of the thickness of the first connecting plate and the thickness of the second connecting plate is adapted to the width of the engaging groove, and the first connecting plate and the second connecting plate are clamped on the snap-in slot. Through the above structure, it is convenient to detachably connect the spray head assembly and the rotation energy reduction assembly, thereby facilitating the later inspection and maintenance of the screw thread oil application device.

Further, the rotation energy-reduction assembly is detachably connected to the rotation mount through a swing arm, the swing arm has a bending section, and the output end of the rotation cylinder is close to the recess of the bending section, the The rotation energy reduction assembly is installed at one end of the bending section, and the other end of the bending section is connected to the rotation mounting base.

In the present invention, the spray head assembly and the rotating mounting base are detachably connected through a swing arm, thereby facilitating the disassembly and assembly of the screw thread oil application device, and further facilitating the later inspection and maintenance of the thread thread oil application device. In addition, the swing arm in the screw thread oil application device has a bending section, the output end of the rotary cylinder is close to the concave part of the bending section, and the rotating mounting seat and the nozzle assembly are respectively located at both ends of the bending section, and then under the action of the rotary cylinder Next, the position of the spray head assembly can be better adjusted, and when the spray head assembly rotates, the space occupied by the spray head assembly can be reduced.

Further, the spray head assembly is provided with an oil pipe joint, and the spray head assembly is provided with a grease channel, and the grease enters the spray head assembly through the oil pipe joint, and flows out through the grease channel.

Further, the spray head assembly includes a distribution shaft and an oil injection device, the grease channel is set in the distribution shaft, the oil pipe joint is set on the distribution shaft, and the oil pipe joint, the grease The channel and the fuel injection device communicate with each other; the fuel injection device includes a spray head assembly main body and a housing detachably connected with the spray head assembly main body, the spray head assembly main body is sleeved outside the distribution shaft, and the shell The body is sleeved outside the main body of the spray head assembly, the distribution shaft and the main body of the spray head assembly form a closed space, the main body of the spray head assembly and the housing are provided with grease holes, the grease channel, the The grease holes are all in communication with the closed space.

When the present invention is used, grease enters the grease channel of the distribution shaft through the oil pipe joint, and then flows into the oil spray device from the grease channel. As the grease increases, the grease will flow from the grease hole of the oil spray device The outflow is applied to the internal thread of the drilling tool, so as to realize the function of applying grease on the thread surface of the drilling tool; in addition, the present invention connects the casing and the main body of the nozzle assembly detachably, so that when faced with drilling tools of different specifications, as long as It can continue to be used by replacing the housing of a different model.

Further, it also includes a spinner assembly, a column rotation assembly and a support arm assembly, one end of the support arm assembly is connected with the column rotation assembly, and the other end is connected with the pliers body assembly, the The spinner assembly is arranged on the caliper body assembly, and the spinner assembly is used to spin the target drilling tool; the column rotation assembly includes a first driving device, and the first Under the action of the driving device, the column rotation assembly can drive the support arm assembly to lift and rotate; the support arm assembly includes a second drive device, and under the action of the second drive device, the The support arm assembly can drive the telescopic movement of the pliers body assembly and the spinner assembly. Through the above-mentioned structure, it is convenient for the present invention to perform better on-off and break-out operations on the drilling tool.

Compared with prior art, the beneficial effect of the present invention:

1. When the present invention works, the pliers body assembly clamps the drilling tool, and then the lifting cylinder in the threaded oil smearing device drives the rotating cylinder to perform lifting movement. Since the nozzle assembly is arranged on the rotating cylinder, the nozzle assembly can follow the rotation The oil cylinder does lifting motion. At the same time, the rotary oil cylinder in the screw thread oil application device independently drives the spray head assembly to perform horizontal rotary motion. Then, after clamping the drilling tool by the clamp body assembly, the nozzle assembly can be positioned on the thread surface of the drilling tool through the synergistic effect of the lifting cylinder and the rotating cylinder, and then the nozzle assembly can be delivered to the nozzle assembly to lubricate the thread of the drilling tool. surface. Therefore, the present invention can automatically lubricate the grease on the threaded surface of the drill before the iron driller performs the screw-on and break-out operations on the drill, thereby avoiding the operator from manually applying grease to the thread surface of the drill, and further The efficiency of drilling operation can be improved, and the cost of drilling can be reduced.

2. At present, the structure of the iron driller is relatively complicated, and the precision requirements of the iron driller are relatively high, so it is basically not considered to integrate the thread oil automatic application device on the iron driller, but the present invention breaks the traditional thread Buckle oil application method. The present invention utilizes the characteristics of the clamp body assembly to clamp the drilling tool, skillfully arranges the screw thread oil application device on the clamp body assembly, and separately sets the lifting oil cylinder and the rotary oil cylinder on the thread thread oil application device, so that the thread thread The driving device on the oil smearing device is separated from the driving device on the iron driller, which is beneficial to ensure the stability of the iron driller's own work and the accuracy requirements of the iron driller when working. At the same time, integrating the thread oil application device on the iron driller can make the structure of the iron driller relatively compact, which is conducive to increasing the space on the drill floor.

Description of drawings

Fig. 1 is a schematic structural diagram of the drill tool clamped in the first embodiment.

Fig. 2 is a schematic diagram of the threaded oil application device applying grease to the drilling tool after clamping the target drilling tool in Example 1.

FIG. 3 is an enlarged schematic diagram of part B in FIG. 2 .

Fig. 4 is a structural schematic diagram of the device for applying thread oil in Example 1.

Fig. 5 is a schematic diagram of the exploded structure of the screw thread oil application device in embodiment 1.

FIG. 6 is an enlarged schematic view of part A in FIG. 5 .

FIG. 7 is a schematic structural view of the spray head assembly in Embodiment 1.

FIG. 8 is a schematic cross-sectional structural view of the shower head assembly in Embodiment 1. FIG.

9 is a schematic diagram of the exploded structure of the spray head assembly in Embodiment 1.

FIG. 10 is a schematic structural diagram of the rotating energy-reduction assembly in Embodiment 1.

Fig. 11 is a schematic diagram of the exploded structure of the rotating energy-reduction assembly in Embodiment 1.

FIG. 12 is a schematic structural view of the rotating shaft in Embodiment 1.

FIG. 13 is a schematic structural diagram of the rotating energy-reducing assembly in Embodiment 2. FIG.

Fig. 14 is a schematic diagram of the exploded structure of the rotating energy-reducing assembly in the second embodiment.

Markings in the figure: 1-thread oil application device, 11-lifting cylinder, 12-rotating cylinder, 13-rotating mounting base, 14-spray head assembly, 141-oil pipe joint, 142-lubricating grease channel, 143-first connecting plate , 144-distribution shaft, 145-injection device, 146-spray head assembly main body, 147-housing, 148-grease hole, 15-rotation energy reduction assembly, 151-first guide sliding sleeve, 152-rotation shaft, 153 - sliding pin, 154 - screw hole, 155 - mounting hole, 156 - second connecting plate, 157 - energy reducing element, 158 - flange, 159 - connecting seat, 1510 - rotary drive device, 1511 - cover plate, 1512 - Upper cover plate, 1513 - Lower cover plate, 1514 - Circumferential limit piece, 1516 - Limit card slot, 1517 - Second guide sliding sleeve, 1518 - Keyway, 1519 - Sensor, 1520 - Base, 1521 - Sleeve , 16-Axial limiter, 161-Clamping groove, 17-Swing arm, 171-Bending section, 18-Lifting mounting seat, 2-Spinner assembly, 3-Clamp body assembly, 4-Column Rotary assembly, 5-support arm assembly, 6-target drilling tool.

detailed description

The present invention will be further described in detail below in conjunction with test examples and specific embodiments. However, it should not be understood that the scope of the above subject matter of the present invention is limited to the following embodiments, and all technologies realized based on the content of the present invention belong to the scope of the present invention.

Example 1

As shown in Figures 1 to 12, this embodiment 1 provides an iron driller with a screw thread oil application device, including a spinner assembly 2, a pliers assembly 3, a column rotation assembly 4 and a support arm Assembly 5; clamp body assembly 3 is used to clamp the target drilling tool 6, spinner assembly 2 is used to spin the target drilling tool 6, and one end of the support arm assembly 5 is connected to the column rotation assembly 4 , the other end is connected with the clamp body assembly 3, the spinner assembly 2 is arranged on the clamp body assembly 3; the column rotation assembly 4 includes a first drive device, and under the action of the first drive device, the column rotation assembly 4 can drive the support arm assembly 5 to lift and rotate; the support arm assembly 5 includes a second drive device, and under the action of the second drive device, the support arm assembly 5 can drive the pliers body assembly 3 and the turnbuckle The telescopic movement of the device assembly 2. Thereby, it is convenient for the present embodiment 1 to better perform on-off and break-out operations on the target drilling tool 6 .

In addition, this embodiment 1 also includes a threading oil application device 1 arranged on the caliper body assembly 3 .

As shown in FIG. 4 and FIG. 5 , the screw thread oil application device 1 includes a lifting cylinder 11 , a rotating cylinder 12 and a spray head assembly 14 . In the first embodiment, the lifting cylinder 11 can drive the rotary cylinder 12 to move up and down, and the rotary cylinder 12 can drive the spray head assembly 14 to rotate horizontally.

Specifically, in this embodiment 1, the lifting cylinder 11 can be fixedly installed on the caliper body assembly 3, and when the lifting cylinder 11 is installed on the caliper body assembly 3, the output shaft of the lifting cylinder 11 should be vertically arranged state. As shown in Figures 4 and 5, the rotary cylinder 12 is installed on the output end of the lifting cylinder 11, and the output end of the rotary cylinder 12 is provided with a rotary mount 13, and the nozzle assembly 14 is connected to the rotary cylinder 12 through the rotary mount 13. Therefore, when the lifting cylinder 11 drives the rotating cylinder 12 to perform lifting motion, the lifting cylinder 11 will also drive the rotating mounting base 13 and the nozzle assembly 14 to move up and down together; The seat 13 and the spray head assembly 14 perform rotational movement.

As shown in FIGS. 7 and 8 , the spray head assembly 14 is provided with an oil pipe joint 141 , and the spray head assembly 14 is provided with a grease channel 142 . Furthermore, after clamp body assembly 3 in the present embodiment 1 clamps the drilling tool, the nozzle assembly 14 can be positioned at the threaded surface of the drilling tool through the synergistic effect of the lifting cylinder 11 and the rotating cylinder 12, and then passes to the nozzle assembly. Grease is delivered in the oil pipe joint 141 on the 14, and the grease flows out and lubricates the threaded surface of the drilling tool after passing through the grease passage 142.

As shown in FIG. 4 and FIG. 5 , the lifting cylinder 11 of the screw thread oil application device 1 can be installed on the iron driller's pliers body assembly 3 through the lifting mounting base 18 . Further, the lifting mounting base 18 can be detachably connected with the caliper body assembly 3, such as bolted connection, etc., so that the disassembly and assembly between the screw thread oil application device 1 and the pliers body assembly 3 can be facilitated, and then it is convenient to separate Inspection and maintenance of thread oil application device 1. In Embodiment 1, the specific structure of the lifting mounting base 18 is not limited, as long as it can facilitate the installation of the lifting cylinder 11; Oil cylinder 12 gets final product.

As shown in Figure 4 and Figure 5, the spray head assembly 14 is connected to the rotation mount 13 through the rotation energy reduction assembly 15, and the connection between the rotation energy reduction assembly 15 and the spray head assembly 14 is provided with an axial limiter 16, the axial limit The position piece 16 is used to prevent the rotary energy-reducing assembly 15 from entering into the drilling tool; the rotary energy-reducing assembly 15 includes a rotating shaft 152 and an energy-reducing element 157, the rotating shaft 152 can drive the nozzle assembly 14 to rotate, and the energy-reducing element 157 is used to buffer the axial The energy when the stopper 16 is in contact with the drilling tool.

As shown in Figures 10 to 12, the rotation energy reduction assembly 15 also includes a first guide sleeve 151 sleeved outside the rotation shaft 152, the first guide sleeve 151 is fixedly connected with the rotation mount 13, and the spray head assembly 14 is connected to the rotation shaft 152. One end of the shaft 152 is connected, and the energy-reducing element 157 is located between the first guide sliding sleeve 151 and the axial limiter 16; the first guide sliding sleeve 151 can move in the axial direction of the rotating shaft 152, and the first guide sliding sleeve When the sleeve 151 moves relative to the rotating shaft 152 in the axial direction of the rotating shaft 152 , relative rotation can occur between the first guiding sliding sleeve 151 and the rotating shaft 152 .

In Embodiment 1, fixed connection means that no relative displacement can occur between the two. Specifically, the fixed connection may include a non-detachable connection, such as welding; the fixed connection may also include a detachable connection, such as a bolt connection. Preferably, in Embodiment 1, a detachable fixed connection can be used.

When using the first embodiment, the position of the nozzle assembly 14 is adjusted through the lifting cylinder 11 and the rotating cylinder 12, so that the nozzle assembly 14 is located directly above the drilling tool, and then the nozzle assembly 14 and the rotating energy-reducing assembly 15 are adjusted through the lifting cylinder 11. The whole body descends, and the nozzle assembly 14 enters the drilling tool. The nozzle assembly 14 is connected to the rotating shaft 152 of the rotation energy-reduction assembly 15 through the axial limiting member 16, and the axial limiting member 16 can prevent the rotating shaft 152 from entering the drilling tool, that is, the axial limiting member 16 can prevent The axis of rotation 152 continues to move downward. The lifting cylinder 11 continues to work. At this time, the first guiding sleeve 151 moves in the axial direction of the rotating shaft 152 relative to the rotating shaft 152 , that is, the first guiding sliding sleeve 151 moves downward on the rotating shaft 152 . At the same time, when the first sliding guide sleeve 151 moves downward on the rotating shaft 152, relative rotation will occur between the first guiding sliding sleeve 151 and the rotating shaft 152, that is, the first guiding sliding sleeve 151 moves downward on the rotating shaft 152. Move, the rotating shaft 152 rotates relative to the first guide sliding sleeve 151 . Therefore, the rotation of the rotating shaft 152 can drive the spray head assembly 14 to rotate, and then the spray head assembly 14 can better smear the lubricating grease on the threaded surface of the drilling tool.

As shown in FIGS. 10 to 12 , for the convenience of implementation, the energy-absorbing element 157 is preferably a spring, and the spring is sheathed on the rotating shaft 152 . The rotation energy-reduction assembly 15 in the screw thread oil application device 1 also includes a sliding pin 153, a screw hole 154 is arranged on the rotating shaft 152, and the screw hole 154 is spirally arranged along the axial direction of the rotating shaft 152, and the peripheral wall of the first guide sliding sleeve 151 An installation hole 155 is opened on the top, and the sliding pin 153 is located in the installation hole 155 , and the first guide sliding sleeve 151 is connected with the rotating shaft 152 through the sliding pin 153 , and the sliding pin 153 can slide in the screw hole 154 . Therefore, when the slide pin 153 slides in the screw hole 154, the first guide sleeve 151 can move in the axial direction of the rotation shaft 152 relative to the rotation shaft 152, and when the first guide sleeve 151 moves on the rotation shaft 152 , the first guide sliding sleeve 151 and the rotating shaft 152 can rotate relative to each other.

Moreover, the spring 157 can prevent the first sliding sleeve 151 from sliding down automatically under the action of gravity; at the same time, when the first sliding sleeve 151 reaches the lower end of the rotating shaft 152, the first sliding sleeve 151 can be automatically moved by the spring 157. Returning to the upper end of the rotating shaft 152 means that the first guiding sliding sleeve 151 can automatically return to the initial position of the first guiding sliding sleeve 151 on the rotating shaft 152 through the spring 157 .

As shown in Figure 11, the first guide sliding sleeve 151 in the screw thread oil application device 1 can be provided with a sleeve structure, and a flange is provided at one end of the first guide sliding sleeve 151, so as to facilitate connection with the rotating mounting base 13 . An installation hole 155 is opened on the peripheral wall of the first guide sliding sleeve 151 , specifically, the installation hole 155 can be selected as a circular through hole.

Further, as shown in Fig. 5, Fig. 10 and Fig. 11, a first connecting plate 143 is provided on the nozzle assembly 14 of the screw thread oil application device 1, and a second connecting plate 156 is provided on the rotating shaft 152, and the axial limit The piece 16 includes a snap-in plate, and a snap-in groove 161 is arranged in the snap-in plate, the sum of the thickness of the first connecting plate 143 and the thickness of the second connecting plate 156 is adapted to the width of the snap-in groove 161, and the first connecting plate 143 and the second connecting plate 156 are clamped in the clamping groove 161 . Specifically, both the first connecting plate 143 and the second connecting plate 156 can be selected as ring-shaped structural plates.

In order to facilitate the connection between the rotating shaft 152 and the second connecting plate 156, as shown in FIGS. The connecting base 159 is detachably connected, so that the second connecting plate 156 is installed under the connecting base 159 . The clamping plate in the axial limiter 16 can be selected as an arc-shaped structural plate, as shown in Figure 5 and Figure 6, the clamping plate can be selected as two pieces, and each clamping plate is provided with a clamping joint. slot 161, the two clamping plates are detachably connected by bolts. When connecting the rotation energy-reducing assembly 15 to the spray head assembly 14, the first connecting plate 143 is first in contact with the second connecting plate 156, and then the two clamping plates are clamped on the first connecting plate 143 and the second connecting plate 156, and finally the two clamping plates are fastened together by bolts.

Of course, in the screw thread oil application device 1, the specific structure of the axial stopper 16 is not limited. For the convenience of implementation, the axial stopper 16 can be directly selected as the first connecting plate 143 on the nozzle assembly 14, that is, The first connecting plate 143 is also the axial limiting member 16 . The first connecting plate 143 can be selected as an annular structural plate, so that the diameter of the first connecting plate 143 is larger than the pipe diameter of the target drilling tool 6 . The first connecting plate 143 is directly connected to the second connecting plate 156 in the rotation energy-reducing assembly 15 , and for the convenience of implementation, the first connecting plate 143 can be connected to the second connecting plate 156 by bolts.

In the screw thread oil application device 1 , the rotation energy reduction assembly 15 can be directly connected to the rotation mounting base 13 , and the rotation energy reduction assembly 15 can also be connected to the rotation mounting base 13 through other structural components. As shown in Figures 4 and 5, the spray head assembly 14 in the screw thread oil application device 1 is detachably connected to the rotating mount 13 through the swing arm 17, the swing arm 17 has a bending section 171, and the output end of the rotating oil cylinder 12 is close to In the concave portion of the bent section 171 , the nozzle assembly 14 is installed at one end of the bent section 171 , and the other end of the bent section 171 is connected to the rotating mounting base 13 .

In the screw thread oil application device 1, the spray head assembly 14 and the rotating mounting base 13 are detachably connected through the swing arm 17, so that the screw thread oil application device 1 can be easily disassembled, and then the screw thread oil application device 1 can be conveniently installed later. Carry out inspection and repair. In addition, the swing arm 17 in the screw thread oil application device 1 has a bending section 171, the output end of the rotary cylinder 12 is close to the recess of the bending section 171, and the rotating mounting seat 13 and the spray head assembly 14 are respectively located on both sides of the bending section 171. end, and under the action of the rotating cylinder 12, the position of the spray head assembly 14 can be better adjusted, and when the spray head assembly 14 rotates, the space occupied by the spray head assembly 14 can be reduced.

As shown in FIGS. 7 to 9 , the spray head assembly 14 of the screw thread oil application device 1 includes a distribution shaft 144 and an oil spray device 145 , the grease passage 142 is arranged in the distribution shaft 144 , and the oil pipe joint 141 is arranged on the distribution shaft 144 , And the oil pipe joint 141, the grease channel 142, and the oil injection device 145 are connected with each other; the oil injection device 145 includes a spray head assembly main body 146 and a housing 147 detachably connected with the spray head assembly main body 146, and the spray head assembly main body 146 is sleeved on the distribution shaft 144 Outside, the housing 147 is sleeved outside the nozzle assembly main body 146, the distribution shaft 144 and the nozzle assembly main body 146 form a closed space, the nozzle assembly main body 146 and the housing 147 are provided with grease holes 148, grease channels 142, grease The holes 148 are all in communication with the closed space.

When the present embodiment 1 is used, the lubricating grease enters the lubricating grease passage 142 of the distribution shaft 144 through the oil pipe joint 141, and then flows into the oil spraying device 145 from the lubricating grease passage 142. The grease hole 148 of the oil device 145 flows out and is applied to the internal thread of the drilling tool, thereby realizing the function of applying grease on the threaded surface of the drilling tool; in addition, the housing 147 of the present embodiment 1 is detachably connected to the main body 146 of the spray head assembly , so that when faced with drilling tools of different specifications, it can continue to be used as long as the housing 147 of a different type is replaced.

Therefore, before the threading oil application device 1 arranged on the caliper body assembly 3 is used to lubricate the grease on the threaded surface of the drilling tool before the screwing-in and breaking-out operation of the drilling tool in the present embodiment 1, the thread surface of the drilling tool can be automatically lubricated. Eliminating the need for operators to manually apply grease to the threaded surfaces of drilling tools can improve the efficiency of drilling operations and reduce the cost of drilling.

Although there are threaded oil automatic smearing devices on the market, most of the existing threaded oil smearing devices are installed on the mud explosion-proof box or on the drill floor, and the structure of the iron driller is relatively complicated, and the precision requirements of the iron driller are relatively high. Therefore, it is basically not considered to integrate the thread oil automatic application device on the iron driller, but the iron driller provided by this embodiment 1 breaks the traditional method of thread oil application. In this embodiment 1, using the characteristics of the clamp body assembly 3 to clamp the drilling tool, the screw thread oil application device is cleverly arranged on the clamp body assembly 3, and the thread oil application device 1 is separately provided with a lift The oil cylinder 11 and the rotary oil cylinder 12 separate the driving device on the screw thread oil application device 1 from the driving device on the iron driller, thereby helping to ensure the stability of the iron driller's own work and the accuracy of the iron driller's work Require. Simultaneously, integrating the screw thread oil application device 1 on the iron driller can make the structure of the iron driller relatively compact, which is beneficial to increase the space on the drill floor.

Example 2

Embodiment 2 provides an iron driller with a thread oil application device. Compared with Embodiment 1, Embodiment 2 differs only in the structure of the rotating energy-reducing assembly 15 .

As shown in Figure 13 and Figure 14, the rotation energy reduction assembly 15 in this embodiment 2 includes a rotation shaft 152, an energy reduction element 157 and a rotation drive device 1510, the rotation drive device 1510 is fixedly connected with the rotation mount 13, and the rotation shaft 152 One end is connected to the spray head assembly 14 , and the other end is connected to the output end of the rotary driving device 1510 through the energy-reducing element 157 .

Preferably, the rotation driving device 1510 in the second embodiment can be selected as a rotary oil cylinder, and the rotation driving device 1510 can be fixedly connected to the rotation mounting base 13 through the base 1520 . As shown in FIG. 13 and FIG. 14 , the base 1520 can be selected as a cylindrical structure with a cavity, and the rotation driving device 1510 is installed inside the base.

The rotation energy reduction assembly 15 of the second embodiment includes a rotation driving device 1510, so that the rotation shaft 152 can be driven to rotate by the rotation driving device 1510; The collision energy between them can make the spray head assembly 14 better spread the lubricating grease on the thread surface of the drilling tool, and can reduce the damage to the end surface of the drilling tool.

Further, in order to facilitate the disassembly and assembly between the energy reducing element 157 and the rotary driving device 1510 , it is convenient to maintain or replace the energy reducing element 157 and the rotary driving device 1510 . The energy-reducing element 157 in the second embodiment is connected with the rotation driving device 1510 through the cover plate 1511 . Specifically, the cover plate 1511 includes an upper cover plate 1512 fixedly connected to the rotary drive device 1510 and a lower cover plate 1513 fixedly connected to the energy-reducing element 157; between the upper cover plate 1512 and the lower cover plate 1513, one of the cover plates A circumferential limiting member 1514 is provided on the upper cover, and a limiting card slot 1516 adapted to the circumferential limiting member 1515 is provided on the other cover. In the second embodiment, the specific structure of the circumferential limiting member 1514 and the limiting slot 1516 is not limited, as long as the upper cover plate 1511 and the lower cover plate 1513 do not rotate relative to each other when the rotating shaft 152 rotates That is enough; of course, the clamping manner between the circumferential limiting member 1514 and the limiting slot 1516 can not only limit the relative rotation between the two, but also limit the axial displacement between the two.

As shown in Figure 13 and Figure 14, the rotation energy reduction assembly 15 also includes a second guide sliding sleeve 1517 fixedly connected with the lower cover plate 1513, the energy reduction element 157 is preferably a spring, one end of the spring is fixedly connected with the rotation shaft 152, and the other One end is fixedly connected with the lower cover plate 1513, the rotating shaft 152 and the spring are located inside the second guiding sliding sleeve 1517, and the rotating shaft 152 is keyed to the second guiding sliding sleeve 1517, and the inner wall of the second guiding sliding sleeve 1517 is provided with A keyway 1518 arranged axially along itself. Therefore, the rotation driving device 1510 can not only drive the spray head assembly 14 to rotate through the rotating shaft 152 , but also make the rotating shaft 152 slide relative to the second guiding sliding sleeve 1517 in the axial direction of the second guiding sliding sleeve 1517 .

Further, the second guide sliding sleeve 1517 is also provided with a sensor 1519 for detecting the rotational displacement of the spray head assembly 14, so as to facilitate precise control of the rotational displacement of the spray head assembly 14 in the drilling tool; During the process, it is detected whether the spray head assembly 14 rotates relative to the rotation shaft 152 . Specifically, as shown in FIG. 13 , the second sliding guide sleeve 1517 can be configured as a stepped shaft structure, and a sleeve 1521 is provided outside the second sliding guide sleeve 1517 , and the sensor 1519 is mounted on the sleeve 1521 . At this time, as shown in FIG. 14 , the clamping method between the circumferential limiter 1514 and the limiter slot 1516 can only prevent relative rotation between the two, and the sleeve 1521 is connected with the base 1520 to prevent The circumferential limiting member 1514 is axially separated from the limiting slot 1516 . Preferably, the circumferential limiter 1514 may be in a rectangular shape.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the protection of the present invention. within range.

Claims (14)

1. An iron driller with a screw thread oil smearing device, comprising a pliers body assembly (3) for clamping a target drilling tool, characterized in that: the pliers body assembly (3) is provided with a thread thread oil smearing device device(1),

   The screw thread oil application device (1) comprises a lifting cylinder (11) and a rotating cylinder (12), the rotating cylinder (12) is provided with a nozzle assembly (14), and the lifting cylinder (11) can drive the The rotary cylinder (12) moves up and down, and the rotary cylinder (12) can drive the spray head assembly (14) to rotate horizontally.
2. The iron driller with threaded oil application device according to claim 1, characterized in that: the lifting cylinder (11) is fixedly connected with the clamp body assembly (3), and the rotating cylinder (12) is installed On the output end of the lifting oil cylinder (11), a rotating mount (13) is arranged on the output end of the rotating oil cylinder (12), and the spray head assembly (14) is connected with the rotating mount (13) The rotary oil cylinders (12) are connected to each other.
3. The iron driller with a threaded oil application device according to claim 2, characterized in that: the spray head assembly (14) is connected to the rotating mounting base (13) through a rotating energy-reducing assembly (15), and the An axial limiter (16) is provided at the joint between the rotation energy reduction assembly (15) and the spray head assembly (14), and the axial limiter (16) is used to prevent the rotation energy reduction assembly ( 15) into the drilling tool;

   The rotating energy reducing assembly (15) includes a rotating shaft (152) and an energy reducing element (157), the rotating shaft (152) can drive the nozzle assembly (14) to rotate, and the energy reducing element (157) uses To buffer the energy when the axial limiting member (16) is in contact with the drilling tool.
4. The iron driller with a screw thread oil application device according to claim 3, characterized in that: the rotation energy-reduction assembly (15) further comprises a first guide sliding sleeve sleeved on the outside of the rotation shaft (152) (151), the first guide sliding sleeve (151) is fixedly connected to the rotating mount (13), the spray head assembly (14) is connected to one end of the rotating shaft (152), and the energy reduction The element (157) is located between the first guide sliding sleeve (151) and the axial stopper (16);

   The first guide sliding sleeve (151) can move in the axial direction of the rotating shaft (152), and the first guiding sliding sleeve (151) is relative to the rotating shaft (152) on the rotating shaft When the axis of (152) moves upward, relative rotation can occur between the first guide sliding sleeve (151) and the rotating shaft (152).
5. The iron driller with threaded oil application device according to claim 4, characterized in that: the energy-reducing element (157) is a spring, and the spring is sleeved on the rotating shaft (152);

   The rotation energy reduction assembly (15) also includes a sliding pin (153), and the rotation shaft (152) is provided with a screw hole (154), and the screw hole (154) is along the axis of the rotation shaft (152). Arranged in a spiral direction, an installation hole (155) is opened on the peripheral wall of the first guide sliding sleeve (151), the sliding pin (153) is located in the installation hole (155), and the first guide sliding sleeve (151) is connected with the rotating shaft (152) through the sliding pin (153), and the sliding pin (153) can slide in the screw hole (154).
6. The iron driller with threaded oil application device according to claim 3, characterized in that: the rotation energy-reduction assembly (15) also includes a rotation driving device (1510), and the rotation driving device (1510) is connected to the The rotating mounting base (13) is fixedly connected, one end of the rotating shaft (152) is connected with the spray head assembly (14), and the other end is connected with the rotating driving device (1510) through the energy-reducing element (157). connected to the output.
7. The iron driller with thread oil application device according to claim 6, characterized in that: the energy-reducing element (157) is connected with the rotary driving device (1510) through a cover plate (1511), and the cover The plate (1511) includes an upper cover plate (1512) fixedly connected to the rotary driving device (1510) and a lower cover plate (1513) fixedly connected to the energy-reducing element (157);

   Between the upper cover plate (1512) and the lower cover plate (1513), one of the cover plates is provided with a circumferential limiting member (1514), and the other cover plate is provided with a The limit card slot (1516) adapted to the position piece (1515).
8. The iron driller with screw oil application device according to claim 7, characterized in that: the rotation energy-reduction assembly (15) also includes a second guide sliding sleeve fixedly connected with the lower cover plate (1513) (1517), the energy-absorbing element (157) is a spring, one end of the spring is fixedly connected to the rotating shaft (152), and the other end is fixedly connected to the lower cover plate (1513), and the rotating shaft ( 152) and the spring are located inside the second guide sleeve (1517), and the rotating shaft (152) is keyed to the second guide sleeve (1517), and the second guide sleeve The inner wall of (1517) is provided with a keyway (1518) arranged along its axial direction.
9. The iron driller with threaded oil application device according to claim 8, characterized in that: the second guide sliding sleeve (1517) is provided with a sensor (1519) for detecting the rotational displacement of the spray head assembly (14) ).
10. The iron driller with threaded oil application device according to any one of claims 4-9, characterized in that: the spray head assembly (14) is provided with a first connecting plate (143), and the rotating shaft (152) is provided with a second connecting plate (156), the axial limiting member (16) includes a clamping plate, and a clamping groove (161) is arranged in the clamping plate, and the first connecting plate The sum of the thickness of (143) and the thickness of the second connecting plate (156) is adapted to the width of the engaging groove (161), and the first connecting plate (143) and the second connecting plate (156) is clamped in the clamping groove (161).
11. The iron driller with a screw thread oil application device according to any one of claims 3-9, characterized in that: the rotation energy-reducing assembly (15) connects with the rotation mounting seat ( 13) Detachable connection, the swing arm (17) has a bending section (171), and the output end of the rotary cylinder (12) is close to the recess of the bending section (171), the rotation energy-reduction assembly (15) is installed at one end of the bending section (171), and the other end of the bending section (171) is connected to the rotating mount (13).
12. The iron driller with threaded oil application device according to any one of claims 1-9, characterized in that: the spray head assembly (14) is provided with an oil pipe joint (141), and the spray head assembly (14) ) is provided with a grease channel (142), and grease enters the spray head assembly (14) through the oil pipe joint (141) and flows out through the grease channel (142).
13. The iron driller with threaded oil application device according to claim 12, characterized in that: the spray head assembly (14) comprises a distribution shaft (144) and an oil spray device (145), and the grease channel (142) Set in the distribution shaft (144), the oil pipe joint (141) is set on the distribution shaft (144), and the oil pipe joint (141), the grease channel (142), the spray The oil devices (145) communicate with each other;

    The fuel injection device (145) includes a spray head assembly main body (146) and a housing (147) detachably connected to the spray head assembly main body (146), and the spray head assembly main body (146) is sleeved on the distribution shaft (144), the housing (147) is sleeved outside the spray head assembly main body (146), the distribution shaft (144) and the spray head assembly main body (146) form a closed space, and the spray head assembly main body (146) and the housing (147) are provided with a grease hole (148), and the grease channel (142) and the grease hole (148) are both connected to the closed space.
14. The iron driller with a thread oil application device according to any one of claims 1-9, characterized in that it also includes a spinner assembly (2), a column rotation assembly (4) and a support arm assembly (5), one end of the support arm assembly (5) is connected with the column rotation assembly (4), and the other end is connected with the clamp body assembly (3), and the spinner assembly ( 2) It is arranged on the clamp body assembly (3), and the spinner assembly (2) is used for spinning the target drilling tool;

    The column rotation assembly (4) includes a first drive device, and under the action of the first drive device, the column rotation assembly (4) can drive the support arm assembly (5) to lift and rotate sports;

    The support arm assembly (5) includes a second drive device, and under the action of the second drive device, the support arm assembly (5) can drive the pliers assembly (3) and the The telescopic movement of the spinner assembly (2).

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