Non-stop drilling differential make-up and break-out drilling power head and drilling rig

Abstract

The present invention provides a non-stop drilling differential make-up and make-up drilling power head and a drilling rig, the drilling rig comprising a feed body, a support plate movably mounted on the feed body; a non-stop drilling differential make-up and make-up drilling power head fixedly mounted on the front of the support plate, a drill rod clamped in the non-stop drilling differential make-up and make-up drilling power head; the non-stop drilling differential make-up and make-up drilling power head comprising a power head body, a front rotator and a rear rotator provided on the top of the power head body, the front rotator and the rear rotator being arranged laterally opposite to each other. The present invention adopts a structural design of front and rear double chucks and two independent sets of gears, and realizes differential rotation of the front chuck and the rear chuck by rationally distributing the rotary power of the two sets of gears, thereby realizing continuous make-up and make-up without stopping drilling, thereby adapting to drilling conditions in formations prone to collapse, such as broken soft coal seams or broken zones, effectively reducing in-hole accidents such as stuck drills and buried drills, and improving the efficiency of make-up and make-up of drill rods.

Description

Technical Field

[0001] The invention belongs to the technical field of underground coal mine drilling, relates to underground coal mine drilling equipment, and particularly relates to a non-stop drilling differential make-up and break-out drilling power head and a drilling rig. Background Art

[0002] Underground drilling construction in coal mines is mainly used for directional exploration and construction of treatment channels in gas-rich areas, abnormally water-rich areas, and abnormal geological structural zones, laying the foundation for subsequent gas extraction, water drainage, grouting reinforcement, and other projects. When drilling into hard coal and rock formations, the drilling process is stopped beforehand to load and unload the drill rod, make and break the bead, and then start drilling. This reduces the risk of accidents such as hole collapse and drill burial. However, when drilling into soft coal seams or broken zones, due to the instability of the resulting borehole wall, if the drilling process is stopped beforehand to load and unload the drill rod, make and break the bead, and then start drilling, it is easy to cause hole collapse, resulting in accidents such as drill stuck and drill buried. Summary of the Invention

[0003] In view of the defects and shortcomings of the existing technology, the purpose of the present invention is to provide a non-stop differential make-up and break-out drilling power head and drilling rig, so as to solve the technical problem in the existing technology that when the drilling stratum is a broken soft coal seam or a broken zone, if the drilling construction scheme is stopped in advance for loading and unloading drill rods, make-up and break-out, etc. before drilling, it is easy to cause accidents such as hole collapse and drill stuck and buried drill.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0005] A drilling rig with a non-stop drilling differential-speed make-up and break-out drilling power head comprises a feed body on which a support plate is movably mounted; a non-stop drilling differential-speed make-up and break-out drilling power head is fixedly mounted on the front of the support plate, and a drill rod is clamped in the non-stop drilling differential-speed make-up and break-out drilling power head.

[0006] The non-stop drilling differential make-up and breakout drilling power head comprises a power head main body, a front rotator and a rear rotator are arranged on the top of the power head main body, and the front rotator and the rear rotator are arranged laterally opposite to each other.

[0007] The power head main body includes a power head shell, and the power head main shaft is rotatably installed in the bottom of the power head shell. The power head main shaft is a two-section structure. The first gear of the power head is fixedly installed on the axial front section of the power head main shaft, and the second gear of the power head is fixedly installed on the axial rear section of the power head main shaft. The axial front section and axial rear section of the power head main shaft can rotate relative to each other.

[0008] The front rotator includes a front rotator shaft, which is rotatably mounted on the top of a lateral side of the power head housing. A front rotator gear is fixedly mounted on the front rotator shaft, and the front rotator gear is engaged with the first gear of the power head.

[0009] The rear rotator includes a rear rotator shaft, which is rotatably mounted on the top of the other lateral side of the power head housing. A rear rotator gear is fixedly mounted on the front rotator shaft, and the rear rotator gear is engaged with the second gear of the power head.

[0010] The transmission ratio of the rear rotator is smaller than that of the front rotator; the module of the first gear of the power head is equal to the module of the front rotator gear, the module of the rear rotator gear is equal to the module of the second gear of the power head, and the module of the rear rotator gear is greater than the module of the front rotator gear; the number of teeth of the first gear of the power head is greater than the number of teeth of the second gear of the power head, the number of teeth of the second gear of the power head is greater than the number of teeth of the rear rotator gear, and the number of teeth of the rear rotator gear is greater than the number of teeth of the front rotator gear.

[0011] The present invention also has the following technical features:

[0012] A front chuck is installed at the longitudinal front end of the bottom of the power head housing, and a rear chuck is installed at the longitudinal rear side of the bottom of the power head housing. The front chuck and the rear chuck are coaxially arranged with the power head main shaft.

[0013] A pair of power head main shaft front bearings are installed at the axial front portion of the power head main shaft, and a pair of power head main shaft rear bearings are installed at the axial rear portion of the power head main shaft.

[0014] The power head main shaft is sleeved with a power head spacer, which is located between the two power head main shaft bearings.

[0015] The power head main shaft is sleeved with a power head oil distribution sleeve, which is located between the power head main shaft rear bearing and the rear chuck.

[0016] The longitudinal front end of the front rotator shaft is connected to the front rotator motor, and the axial rear end of the front rotator shaft is equipped with a front rotator bearing.

[0017] The rear end cover of the front rotator is installed on the rear side of the top of the lateral side of the power head housing; the front end cover of the front rotator is installed on the front side of the top of the lateral side of the power head housing, and the front rotary motor connecting flange is installed on the front end cover of the front rotator, and the front rotary motor connecting flange is connected to the front rotary motor; the space enclosed by the top of the lateral side of the power head housing, the front end cover of the front rotator, the front rear end cover of the front rotator, the front rotary motor connecting flange and the front rotary motor is the front rotator cavity.

[0018] The longitudinal front end of the rear gyrator shaft is connected to the rear gyrator motor, and the axial rear end of the rear gyrator shaft is equipped with a rear gyrator bearing.

[0019] The rear end cover of the rear rotator is installed on the rear side of the top on the other lateral side of the power head housing; the front end cover of the rear rotator is installed on the front side of the top on the other lateral side of the power head housing, and the rear rotary motor connecting flange is installed on the front end cover of the rear rotator, and the rear rotary motor connecting flange is connected to the rear rotary motor; the space enclosed by the top on the other lateral side of the power head housing, the rear end cover of the rear rotator, the rear rotary motor connecting flange and the rear rotary motor is the front rotator cavity.

[0020] The present invention also protects the above-mentioned non-stop drilling differential make-up and break-out drilling power head.

[0021] Compared with the prior art, the present invention has the following beneficial technical effects:

[0022] (I) The present invention adopts a structural design with front and rear double chucks and two independent sets of gears. By rationally distributing the rotational power between the two sets of gears, differential rotation of the front chuck and the rear chuck is achieved, which enables continuous make-up and break-out without stopping drilling, thereby adapting to drilling conditions in soft coal seams or fractured zones prone to hole collapse, effectively reducing in-hole accidents such as drill sticking and drill burial, and improving the efficiency of make-up and break-out of drill pipes.

[0023] (II) The drilling rig of the present invention can perform the make-up and break-out operations during the rear rod adding process, thereby improving the degree of automation of drilling construction, reducing the labor intensity of workers, and improving the safety of drilling construction.

[0024] (III) The present invention integrates two sets of gyrators into an integrated design, effectively reducing the size of the dual-gyro power head. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the overall structure of a drilling rig with a non-stop drilling differential make-up and break-out drilling power head.

[0026] Figure 2 A side view of a drilling rig with a non-stop differential make-up and break-out drilling head.

[0027] Figure 3 Rear view of the differential make-up and break-out drilling head for non-stop drilling.

[0028] Figure 4 This is a cross-sectional view of the differential make-up and break-out drilling head without stopping drilling ( Figure 3 A-A' section view of the front gyrator structure).

[0029] Figure 5 This is a cross-sectional view of the differential make-up and break-out drilling head without stopping drilling ( Figure 3 BB' cross-sectional view, including the rear gyrator structure).

[0030] The meanings of the various numbers in the figure are: 1-power head body, 2-front rotator, 3-rear rotator, 4-feeder body, 5-support plate, 6-feeder, 7-clamp, 8-rod device, 9-drill rod;

[0031] 101-power head housing, 102-power head main shaft, 103-power head first gear, 104-power head second gear, 105-front chuck, 106-rear chuck, 107-power head main shaft front bearing, 108-power head main shaft middle bearing, 109-power head main shaft rear bearing, 110-power head spacer, 111-power head oil sleeve.

[0032] 201-front rotator shaft, 202-front rotator gear, 203-front rotator motor, 204-front rotator bearing, 205-front rotator rear end cover, 206-front rotator front end cover, 207-front rotator motor connecting flange.

[0033] 301-rear rotator shaft, 302-rear rotator gear, 303-rear rotator motor, 304-rear rotator bearing, 305-rear rotator rear end cover, 306-rear rotator front end cover, 307-rear rotator motor connecting flange.

[0034] The technical solution of the present invention is further described below in conjunction with embodiments. DETAILED DESCRIPTION

[0035] It should be noted that, unless otherwise specified, all components used in the present invention are components known in the art.

[0036] In accordance with the above technical solution, specific embodiments of the present invention are given below. It should be noted that the present invention is not limited to the following specific embodiments, and all equivalent changes made on the basis of the technical solution of this application fall within the protection scope of the present invention.

[0037] Example 1:

[0038] This embodiment provides a non-stop drilling differential make-up and break-out drilling power head, such as Figures 1 to 3 As shown, it includes a power head main body 1, a front rotator 2 and a rear rotator 3 are arranged on the top of the power head main body 1, and the front rotator 2 and the rear rotator 3 are arranged laterally opposite to each other.

[0039] like Figure 4 and Figure 5As shown, the power head main body 1 includes a power head shell 101, and a power head main shaft 102 is rotatably installed in the bottom of the power head shell 101. The power head main shaft 102 is a two-section structure. The axial front section of the power head main shaft 102 is fixedly installed with a power head first gear 103, and the axial rear section of the power head main shaft 102 is fixedly installed with a power head second gear 104. The axial front section and the axial rear section of the power head main shaft 102 can rotate relative to each other.

[0040] The front rotator 2 includes a front rotator shaft 201, which is rotatably mounted in the top of one lateral side of the power head housing 101, and a front rotator gear 202 is fixedly mounted on the front rotator shaft 201, and the front rotator gear 202 is engaged with the first gear 103 of the power head; the rear rotator 3 includes a rear rotator shaft 301, which is rotatably mounted in the top of the other lateral side of the power head housing 101, and a rear rotator gear 302 is fixedly mounted on the rear rotator shaft 301, and the rear rotator gear 302 is engaged with the second gear 104 of the power head.

[0041] The transmission ratio of the rear rotator 3 is smaller than that of the front rotator 2; the module of the first gear 103 of the power head is equal to the module of the front rotator gear 202, the module of the rear rotator gear 302 is equal to the module of the second gear 104 of the power head, and the module of the rear rotator gear 302 is greater than the module of the front rotator gear 202; the number of teeth of the first gear 103 of the power head is greater than the number of teeth of the second gear 104 of the power head, the number of teeth of the second gear 104 of the power head is greater than the number of teeth of the rear rotator gear 302, and the number of teeth of the rear rotator gear 302 is greater than the number of teeth of the front rotator gear 202.

[0042] In this embodiment, driven by the front slewing motor 203, the front slewing shaft 201 and the front slewing gear 202 rotate as a whole. The front slewing gear 202 transmits force to the power head first gear 103. Subsequently, the power head first gear 103 and the axial front section of the power head main shaft 102 rotate as a whole, realizing the slewing function of the front slewing unit 2. Driven by the rear slewing motor 303, the rear slewing shaft 301 and the rear slewing gear 302 rotate as a whole. The rear slewing gear 302 transmits force to the power head second gear 104. Subsequently, the power head second gear 104 and the axial rear section of the power head main shaft 102 rotate as a whole, realizing the slewing function of the rear slewing unit 3.

[0043] In this embodiment, the parameter design process of the rear gyrator 3 and the front gyrator 2 is as follows:

[0044] The center distance between the power head first gear 103 and the front rotator gear 202 is expressed as the following formula I:

[0045]

[0046] Where:

[0047] a1 represents the center distance between the first gear of the power head and the front rotator gear, in mm.

[0048] m1 represents the module of the front rotator gear, in mm. The module of the first gear of the power head is numerically equal to m1.

[0049] Z2 represents the number of teeth of the first gear of the power head, in pieces.

[0050] Z1 represents the number of teeth of the front rotator gear, in pieces.

[0051] The center distance between the power head second gear 104 and the rear rotator gear 302 is shown in the following formula II:

[0052]

[0053] Where:

[0054] a2 represents the center distance between the second gear of the power head and the rear rotator gear, in mm.

[0055] m2 represents the module of the rear rotator gear, in mm. The module of the second gear of the power head is numerically equal to m2.

[0056] Z4 represents the number of teeth of the second gear of the power head, in pieces.

[0057] Z3 represents the number of teeth of the rear rotator gear, in pieces.

[0058] The modules and the number of teeth of the front gyrator gear 202, the power head first gear 103, the rear gyrator gear 302 and the power head second gear 104 satisfy the following inequality III:

[0059] m1×Z2>m2×Z4>m 2× Z3>m 1× Z1 formula III.

[0060] Therefore, the module of the gear is configured as: m1≥m2, and the number of teeth of the gear is configured as: Z2>Z4>Z3>Z1.

[0061] The transmission ratio of the front gyrator 2 is shown in the following formula IV:

[0062]

[0063] Where:

[0064] i1 represents the transmission ratio of the front gyrator 2.

[0065] Z2 represents the number of teeth of the first gear of the power head, in pieces.

[0066] Z1 represents the number of teeth of the front rotator gear, in pieces.

[0067] n1 represents the rotation speed of the front rotator gear, the unit is r / min.

[0068] n2 represents the rotational speed of the first gear of the power head, in r / min.

[0069] The transmission ratio of the rear gyrator 3 is shown in the following formula V:

[0070]

[0071] Where:

[0072] i2 represents the transmission ratio of the rear gyrator 3.

[0073] Z4 represents the number of teeth of the second gear of the power head, in pieces.

[0074] Z3 represents the number of teeth of the rear rotator gear, in pieces.

[0075] n3 represents the speed of the rear gyrator gear, in r / min.

[0076] n4 represents the speed of the second gear of the power head, in r / min.

[0077] Therefore, when the front rotary motor 203 and the rear rotary motor 303 use the same specifications and models, since the speed ratio i2 of the rear rotator 3 is less than the speed ratio i1 of the front rotator 2, the speed of the power head main shaft 102 can be achieved to be less than the speed of the power head main shaft 102, ensuring that the front rotator 2 drives the drill rod 9 in the hole to have a low rotation function, and at the same time, the rear rotator 3 drives the drill rod 9 to be put on and put off to be higher than the drill rod 9 in the hole to realize the rapid putting on and putting off function, thereby meeting the actual needs of differential putting on and putting off without stopping drilling.

[0078] As a specific solution of this embodiment, Figure 4 and Figure 5 As shown, a front chuck 105 is mounted on the longitudinal front end of the bottom of the power head housing 101, and a rear chuck 106 is mounted on the longitudinal rear side of the bottom of the power head housing 101. The front chuck 105 and the rear chuck 106 are coaxially arranged with the power head spindle 102. In this embodiment, the front chuck 105 and the rear chuck 106 are used to clamp the drill rod 9 in the hole. The drill rod 9 passes through the center hole of the front chuck 105, the center cavity of the power head spindle 102, and the center hole of the rear chuck 106 in sequence.

[0079] As a specific solution of this embodiment, Figure 4 and Figure 5As shown, a power head main shaft front bearing 107 is installed at the axial front end of the power head main shaft 102, a pair of power head main shaft middle bearings 108 are installed in the middle position of the power head main shaft 102, and a power head main shaft rear bearing 109 is installed at the axial rear end of the power head main shaft 102. In this embodiment, the power head main shaft front bearing 107, the power head main shaft middle bearing 108 and the power head main shaft rear bearing 109 are used to realize the rotatable installation of the power head main shaft 102. The power head main shaft front bearing 107 is embedded in the mounting hole of the power head housing 101, and the power head main shaft rear bearing 109 is located at the tail end of the power head main shaft 102, thereby realizing the straightening and positioning of the power head main shaft 102.

[0080] As a specific solution of this embodiment, Figure 4 and Figure 5 As shown, a power head spacer 110 is sleeved on the power head main shaft 102, and the power head spacer 110 is located between the two power head main shaft middle bearings 108. In this embodiment, the power head spacer 110 is located between the two power head main shaft middle bearings 108 to achieve separation between the two, and through its elastic function, the annular gap formed by the power head main shaft 102 and the power head main shaft 102 is isolated from the inner cavity of the power head housing 101, thereby preventing the hydraulic oil in the power head housing 101 from leaking out.

[0081] As a specific solution of this embodiment, Figure 4 and Figure 5 As shown, a power head oil distribution sleeve 111 is sleeved on the power head spindle 102, and the power head oil distribution sleeve 111 is located between the power head spindle rear bearing 109 and the rear chuck 106. In this embodiment, a hydraulic oil channel is provided inside the power head oil distribution sleeve 111 for delivering hydraulic oil to the rear chuck 106.

[0082] As a specific solution of this embodiment, Figure 4 As shown, the longitudinal front end of the front rotator shaft 201 is connected to the front rotator motor 203 , and the axial rear end of the front rotator shaft 201 is installed with a front rotator bearing 204 .

[0083] As a specific solution of this embodiment, Figure 4As shown, a front rotator rear end cover 205 is installed on the rear side of the top of one lateral side of the power head housing 101; a front rotator front end cover 206 is installed on the front side of the top of one lateral side of the power head housing 101, and a front rotary motor connecting flange 207 is installed on the front rotator front end cover 206, and the front rotary motor connecting flange 207 is connected to the front rotary motor 203; the space enclosed by the top of one lateral side of the power head housing 101, the front rotator front end cover 206, the front rotator rear end cover 205, the front rotary motor connecting flange 207 and the front rotary motor 203 is the front rotator cavity. In this embodiment, the front rotary motor 203 is fixedly connected to the front end cover 206 of the front rotator through the front rotary motor connecting flange 207, and its motor drive shaft is connected to the front rotator shaft 201 through a spline / coupling; the other end of the front rotator shaft 201 is inserted into the front rotator bearing 204, and the whole is embedded in the front rotator bearing 204 mounting hole on the power head housing 101; the inner ring of the front rotator gear 202 is connected to the front rotator shaft 201 through a key, so as to realize that the power transmitted by the front rotary motor 203 drives the front rotator gear 202 to rotate.

[0084] As a specific and optional solution of this embodiment, the front rotary motor 203 is driven by air power to achieve the clamping of the rear chuck 106, avoiding interference of the additional oil sleeve on other oil channels inside the power head housing 101.

[0085] As a specific solution of this embodiment, Figure 5 As shown, the longitudinal front end of the rear rotator shaft 301 is connected to the rear rotator motor 303 , and the axial rear end of the rear rotator shaft 301 is installed with a rear rotator bearing 304 .

[0086] As a specific solution of this embodiment, Figure 5As shown, the rear end cover 305 of the rear rotator is installed on the rear side of the top on the other lateral side of the power head housing 101; the front end cover 306 of the rear rotator is installed on the front side of the top on the other lateral side of the power head housing 101, and the rear rotary motor connecting flange 307 is installed on the front end cover 306 of the rear rotator, and the rear rotary motor connecting flange 307 is connected to the rear rotary motor 303; the space enclosed by the top on the other lateral side of the power head housing 101, the front end cover 306 of the rear rotator, the rear end cover 305 of the rear rotator, the rear rotary motor connecting flange 307 and the rear rotary motor 303 is the front rotator cavity. In this embodiment, the rear rotary motor 303 is fixedly connected to the rear rotator front end cover 306 through the rear rotary motor connecting flange 307, and its motor drive shaft is connected to the rear rotator shaft 301 through a spline / coupling; the other end of the rear rotator shaft 301 is inserted into the rear rotator bearing 304, and the whole is embedded in the rear rotator bearing 304 mounting hole on the power head housing 101; the inner ring of the rear rotator gear 302 is connected to the rear rotator shaft 301 through a key, so as to realize that the power transmitted by the rear rotary motor 303 drives the rear rotator gear 302 to rotate.

[0087] Example 2:

[0088] This embodiment provides a drilling rig with a non-stop drilling differential make-up and break-out drilling power head of embodiment 1, such as Figure 1 and Figure 2 As shown, the feeder includes a feeder body 4, on which a support plate 5 is movably mounted. A non-stop drilling differential breakout drilling head is fixedly mounted on the front of the support plate 5. The non-stop drilling differential breakout drilling head clamps a drill rod 9. In this embodiment, the drill head 1 is mounted on the support plate 5 and fixed by bolts to achieve the functions of clamping and rotating the drill rod 9.

[0089] As a specific solution of this embodiment, a pair of feeders 6 are mounted on the rear portion of the support plate 5. The feeders 6 are connected to the rear side of the bottom of one lateral side of the power head housing 101. In this embodiment, the feeders 6 are used to enable the support plate 5 to move forward and backward relative to the feeder body 4, thereby achieving the feeding and extraction functions of the drill rod 9.

[0090] As a specific solution of this embodiment, a clamp 7 is installed on the longitudinal front side of the feed body 4. In this embodiment, the clamp 7 is used to clamp the drill rod 9 and cooperate with the power head 1 to realize the make-up and break-out of the drill rod 9.

[0091] As a specific solution of this embodiment, a rod-lifting device 8 is installed on the side of the longitudinal rear portion of the feed body 4. In this embodiment, the rod-lifting device 8 adopts a conventional drilling rig rod-lifting device known in the prior art, and the rod-lifting device 8 is used to realize the grasping and retracting of the drill rod 9.

[0092] The working process of the drilling rig of the present invention comprises the following steps:

[0093] Step 1: Button up:

[0094] Step 1.1: After drilling, move the power head to the front position and detach the buckle.

[0095] Step 1.2: Clamp the drill rod 9 in the hole through the front chuck 105 of the power head. After the clamp releases the drill rod 9 in the hole, supply oil to the front rotator 2 to drive the drill rod 9 in the hole to rotate at a low speed.

[0096] Step 1.3: Grab the drill rod 9 to the clamping position of the rear chuck 106 by the rod lifting device 8.

[0097] Step 1.4: The feeder 6 supplies oil to drive the power head backward, keeping the rear chuck 106 loose, so that the drill rod 9 can smoothly enter the power head.

[0098] Step 1.5: The feeder 6 supplies oil to drive the power head to move forward, and the rod lifting device 8 is reset to the position to be clamped to the drill rod 9.

[0099] Step 1.6: The rod lifting device 8 grabs the next drill rod 9 to the rear chuck 106 to be clamped.

[0100] Step 1.7, the feeder 6 supplies oil to drive the power head backward, and at the same time supplies oil to the rear rotator 3 to drive the drill rod 9 inside the power head to reverse, so as to achieve the buckling of the currently grabbed drill rod 9.

[0101] In step 1.8, the rod-lifting device 8 is reset to the position where the drill rod 9 is to be clamped, and oil is continued to be supplied to the rear rotator 3 to drive the two drill rods 9 clamped by the rear chuck 106 to rotate forward. Since the rotation speed of the front rotator 2 is less than the rotation speed of the rear rotator 3, non-stop drilling and the clamping of the drill rod 9 in the hole are achieved.

[0102] Step 2: Shackle:

[0103] Step 2.1: Move the two drill rods 9 to be broken out to the clamping positions of the front chuck 105 and the rear chuck 106 of the power head.

[0104] Step 2.2: supply oil to the forward rotator 2 to drive the drill rod 9 in the hole to rotate forward, and supply oil to the backward rotator 3 to drive the drill rod 9 to be unloaded to rotate backward until the two are disengaged.

[0105] Step 2.3: Keep the front rotator 2 rotating forward, stop the rear rotator 3 and reverse it, move the power head backward to the position where the upper rod device 8 clamps the drill rod 9, and then stop.

[0106] In step 2.4, after oil is supplied to the upper rod device 8 to clamp the released drill rod 9, the power head moves forward.

[0107] In step 2.5, the rod-lifting device 8 retracts the drill rod 9, and the power head continues to repeat step S1, thereby realizing the function of breaking out the drill rod 9 without stopping drilling.

Claims

1. A drilling rig with a non-stop drilling differential make-up and break-out drilling power head, comprising a feed body (4) on which a support plate (5) is movably mounted, characterized in that: A non-stop drilling differential breakout drilling power head is fixedly mounted on the front portion of the support plate (5), and a drill rod (9) is clamped in the non-stop drilling differential breakout drilling power head; The non-stop drilling differential-speed make-up and break-out drilling power head comprises a power head main body (1), a front rotator (2) and a rear rotator (3) are arranged on the top of the power head main body (1), and the front rotator (2) and the rear rotator (3) are arranged laterally opposite to each other; The power head body (1) comprises a power head housing (101), a power head main shaft (102) is rotatably mounted in the bottom of the power head housing (101), the power head main shaft (102) is a two-section structure, a first power head gear (103) is fixedly mounted on the axial front section of the power head main shaft (102), and a second power head gear (104) is fixedly mounted on the axial rear section of the power head main shaft (102), and the axial front section and the axial rear section of the power head main shaft (102) are capable of relative rotation; The front rotator (2) includes a front rotator shaft (201), which is rotatably mounted on the top of a lateral side of the power head housing (101), and a front rotator gear (202) is fixedly mounted on the front rotator shaft (201), and the front rotator gear (202) is meshed with the first gear (103) of the power head; The rear rotator (3) includes a rear rotator shaft (301), which is rotatably mounted on the top of the other side of the power head housing (101), and a rear rotator gear (302) is fixedly mounted on the rear rotator shaft (301), and the rear rotator gear (302) is meshed with the second gear (104) of the power head; The transmission ratio of the rear gyrator (3) is smaller than the transmission ratio of the front gyrator (2); the module of the first gear (103) of the power head is equal to the module of the front gyrator gear (202), the module of the rear gyrator gear (302) is equal to the module of the second gear (104) of the power head, and the module of the rear gyrator gear (302) is greater than the module of the front gyrator gear (202); the number of teeth of the first gear (103) of the power head is greater than the number of teeth of the second gear (104) of the power head, the number of teeth of the second gear (104) of the power head is greater than the number of teeth of the rear gyrator gear (302), and the number of teeth of the rear gyrator gear (302) is greater than the number of teeth of the front gyrator gear (202).

2. The drilling rig with a non-stop drilling differential make-up and break-out drilling power head according to claim 1, characterized in that: A front chuck (105) is installed at the longitudinal front end of the bottom of the power head housing (101), and a rear chuck (106) is installed at the longitudinal rear side of the bottom of the power head housing (101). The front chuck (105) and the rear chuck (106) are coaxially arranged with the power head main shaft (102).

3. The drilling rig with a non-stop drilling differential make-up and break-out drilling power head according to claim 2, characterized in that: The axial front end of the power head main shaft (102) is installed with a power head main shaft front bearing (107), the middle position of the power head main shaft (102) is installed with a pair of power head main shaft middle bearings (108), and the axial rear end of the power head main shaft (102) is installed with a power head main shaft rear bearing (109).

4. The drilling rig with a non-stop drilling differential make-up and break-out drilling power head according to claim 3, characterized in that: The power head main shaft (102) is sleeved with a power head spacer (110), and the power head spacer (110) is located between two power head main shaft middle bearings (108).

5. The drilling rig with a non-stop drilling differential make-up and break-out drilling power head according to claim 3, characterized in that: The power head main shaft (102) is sleeved with a power head oil distribution sleeve (111), and the power head oil distribution sleeve (111) is located between the power head main shaft rear bearing (109) and the rear chuck (106).

6. The drilling rig with a non-stop drilling differential make-up and break-out drilling power head according to claim 1, characterized in that: The longitudinal front end of the front rotator shaft (201) is connected to the front rotator motor (203), and the axial rear end of the front rotator shaft (201) is equipped with a front rotator bearing (204).

7. The drilling rig with a non-stop drilling differential make-up and break-out drilling power head according to claim 1, characterized in that: A front rotator rear end cover (205) is installed on the rear side of the top of one lateral side of the power head housing (101); a front rotator front end cover (206) is installed on the front side of the top of one lateral side of the power head housing (101), a front rotator front end cover (206) is installed on the front rotator front end cover (206), and the front rotator motor connecting flange (207) is connected to the front rotator motor (203); the space enclosed by the top of one lateral side of the power head housing (101), the front rotator front end cover (206), the front rotator rear end cover (205), the front rotator motor connecting flange (207) and the front rotator motor (203) is the front rotator cavity.

8. The drilling rig with a non-stop drilling differential make-up and break-out drilling power head according to claim 1, characterized in that: The longitudinal front end of the rear rotator shaft (301) is connected to the rear rotator motor (303), and the axial rear end of the rear rotator shaft (301) is equipped with a rear rotator bearing (304).

9. The drilling rig with a non-stop drilling differential make-up and break-out drilling power head according to claim 1, characterized in that: A rear end cover (305) of a rear rotator is installed on the rear side of the top on the other lateral side of the power head housing (101); a front end cover (306) of a rear rotator is installed on the front side of the top on the other lateral side of the power head housing (101), and a rear rotary motor connecting flange (307) is installed on the front end cover (306) of the rear rotator, and the rear rotary motor connecting flange (307) is connected to the rear rotary motor (303); the space enclosed by the top on the other lateral side of the power head housing (101), the front end cover (306) of the rear rotator, the rear end cover (305) of the rear rotator, the rear rotary motor connecting flange (307) and the rear rotary motor (303) is the front rotator cavity.

10. A non-stop drilling differential make-up and break-out drilling power head, characterized in that: The invention comprises a power head main body (1), a front rotator (2) and a rear rotator (3) are arranged on the top of the power head main body (1), and the front rotator (2) and the rear rotator (3) are arranged opposite to each other in the transverse direction; The power head body (1) comprises a power head housing (101), a power head main shaft (102) is rotatably mounted in the bottom of the power head housing (101), the power head main shaft (102) is a two-section structure, a first power head gear (103) is fixedly mounted on the axial front section of the power head main shaft (102), and a second power head gear (104) is fixedly mounted on the axial rear section of the power head main shaft (102), and the axial front section and the axial rear section of the power head main shaft (102) are capable of relative rotation; The front rotator (2) includes a front rotator shaft (201), which is rotatably mounted on the top of a lateral side of the power head housing (101), and a front rotator gear (202) is fixedly mounted on the front rotator shaft (201), and the front rotator gear (202) is meshed with the first gear (103) of the power head; The rear rotator (3) includes a rear rotator shaft (301), which is rotatably mounted on the top of the other side of the power head housing (101), and a rear rotator gear (302) is fixedly mounted on the rear rotator shaft (301), and the rear rotator gear (302) is meshed with the second gear (104) of the power head; The transmission ratio of the rear gyrator (3) is smaller than the transmission ratio of the front gyrator (2); the module of the first gear (103) of the power head is equal to the module of the front gyrator gear (202), the module of the rear gyrator gear (302) is equal to the module of the second gear (104) of the power head, and the module of the rear gyrator gear (302) is greater than the module of the front gyrator gear (202); the number of teeth of the first gear (103) of the power head is greater than the number of teeth of the second gear (104) of the power head, the number of teeth of the second gear (104) of the power head is greater than the number of teeth of the rear gyrator gear (302), and the number of teeth of the rear gyrator gear (302) is greater than the number of teeth of the front gyrator gear (202).

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