Non-stop differential screwing-on and screwing-off drilling power head and drilling machine

Abstract

The invention provides a non-drilling-stopping differential screwing-on and screwing-off drilling power head and a drilling machine. The drilling machine comprises a feeding machine body, and a supporting plate is movably installed on the feeding machine body; a non-stop drilling differential upper shackle drilling power head is fixedly mounted on the front part of the supporting plate, and a drill rod is clamped in the non-stop drilling differential upper shackle drilling power head; the non-drilling-stopping differential screwing-on and screwing-off drilling power head comprises a power head body, a front gyrator and a rear gyrator are arranged on the top of the power head body, and the front gyrator and the rear gyrator are transversely and oppositely arranged. The structural design of the front chuck, the rear chuck and the two independent gears is adopted, rotary power is reasonably distributed for the two gears, differential rotation of the front chuck and the rear chuck is achieved, continuous screwing-on and screwing-off can be conducted under the condition that drilling is not stopped, and then the drilling working condition of broken soft coal seams or broken zones and other stratums prone to hole collapse is adapted; in-hole accidents such as drill jamming and drill burying are effectively reduced, and meanwhile the screwing-on and screwing-off efficiency of the drill rod is improved.

Description

Technical Field

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

[0002] Drilling construction in underground coal mines is mainly used for directional exploration and construction of management channels in gas-rich areas, abnormal water-rich areas, abnormal geological structural zones, etc., laying the foundation for the subsequent gas extraction, water drainage, grouting reinforcement and other projects. When drilling in hard coal and rock formations and other geological conditions, the drilling construction is carried out after stopping the drill pipe and putting on and unloading the buckle before drilling. There is rarely a risk of accidents such as hole collapse and buried drill. However, when the formation encountered is a broken soft coal seam or a broken zone, due to the instability of the borehole wall formed, if the drilling construction plan is used to stop the drilling in advance for loading and unloading the drill pipe, putting on and unloading the buckle before drilling, it is easy to cause hole collapse, resulting in accidents such as stuck drill and buried drill. Summary of the invention

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

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

[0005] A drilling rig with a non-stop drilling differential top-breakout drilling power head comprises a feeding body on which a support plate is movably mounted; a non-stop drilling differential top-breakout drilling power head is fixedly mounted on the front part of the support plate, and a drill rod is clamped in the non-stop drilling differential top-breakout drilling power head.

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

[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 in 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 meshed 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 meshed 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 main shaft of the power head.

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

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

[0015] The power head main shaft is sleeved with a power head oil distribution sleeve, which is located between the rear bearing of the power head main shaft 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] A rear end cover of the front rotator is installed on the rear side of the top of one lateral side of the power head housing; a front front end cover of the front rotator is installed on the front side of the top of one lateral side of the power head housing, and a 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 one lateral side of the power head housing, the front 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 provided with a rear gyrator bearing.

[0019] A 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; a 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 a 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 front end cover of the rear rotator, 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 non-stop drilling differential make-up and make-out drilling power head as described above.

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

[0022] (I) The present invention adopts a structural design of front and rear double chucks and two independent sets of gears. By reasonably allocating the rotational power of the two sets of gears, differential rotation of the front chuck and the rear chuck is achieved, and continuous make-up and make-out can be achieved without stopping drilling, thereby adapting to drilling conditions in broken soft coal seams or broken zones that are prone to hole collapse, effectively reducing in-hole accidents such as drill bit sticking and drill bit burial, and at the same time improving the make-up and make-out efficiency of the drill rod.

[0023] (II) The drilling rig of the present invention can perform the make-up and make-down operations during the rear rod adding process, thereby improving the automation degree 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 It 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 make-down drilling power head without stopping drilling ( Figure 3 A-A' section view of the front rotator structure).

[0029] Figure 5 This is a cross-sectional view of the differential make-up and make-down drilling power head without stopping drilling ( Figure 3 BB' section view of 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-feeding body, 5-support plate, 6-feeder, 7-clamp, 8-upper 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 all components used in the present invention, unless otherwise specified, are components known in the art.

[0036] In accordance with the above technical scheme, 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 scheme of this application fall within the protection scope of the present invention.

[0037] Embodiment 1:

[0038] This embodiment provides a non-stop drilling differential make-up and make-down drilling power head, such as Figures 1 to 3 As shown, it includes a power head body 1, on the top of which a front rotator 2 and a rear rotator 3 are arranged, 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 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. A power head first gear 103 is fixedly installed on the axial front section of the power head main shaft 102, and a power head second gear 104 is fixedly installed on the axial rear section of the power head main shaft 102. 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 rotor 2 includes a front rotor shaft 201, which is rotatably mounted in the top of one lateral side of the power head housing 101, and a front rotor gear 202 is fixedly mounted on the front rotor shaft 201, and the front rotor gear 202 is meshed with the first gear 103 of the power head; the rear rotor 3 includes a rear rotor shaft 301, which is rotatably mounted in the top of the other lateral side of the power head housing 101, and a rear rotor gear 302 is fixedly mounted on the rear rotor shaft 301, and the rear rotor gear 302 is meshed 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 rotary motor 203, the front rotator shaft 201 and the front rotator gear 202 rotate as a whole, and the front rotator gear 202 transmits force to the power head first gear 103, and then the power head first gear 103 and the axial front section of the power head main shaft 102 rotate as a whole, realizing the rotation function of the front rotator 2. Driven by the rear rotary motor 303, the rear rotator shaft 301 and the rear rotator gear 302 rotate as a whole, and the rear rotator gear 302 transmits force to the power head second gear 104, and then the power head second gear 104 and the axial rear section of the power head main shaft 102 rotate as a whole, realizing the rotation function of the rear rotator 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 shown in 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 gyrator 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 type 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 rotor gear, in r / min.

[0068] n2 represents the rotation 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 gyrator gear, in pieces.

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

[0076] n4 represents the rotation 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 smaller than the speed ratio i1 of the front rotator 2, that is, the speed of the power head main shaft 102 can be achieved to be smaller than the speed of the power head main shaft 102, thereby 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 taken off to be higher than the drill rod 9 in the hole to realize the function of rapid putting on and taking off, thereby meeting the actual needs of differential putting on and taking off without stopping drilling.

[0078] As a specific solution of this embodiment, Figure 4 and Figure 5 As shown, 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 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, and 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 spindle front bearing 107 is installed at the axial front end of the power head spindle 102, a pair of power head spindle middle bearings 108 are installed at the middle position of the power head spindle 102, and a power head spindle rear bearing 109 is installed at the axial rear end of the power head spindle 102. In this embodiment, the power head spindle front bearing 107, the power head spindle middle bearing 108 and the power head spindle rear bearing 109 are used to realize the rotatable installation of the power head spindle 102, the power head spindle front bearing 107 is embedded in the installation hole of the power head housing 101, and the power head spindle rear bearing 109 is located at the tail end of the power head spindle 102, so as to realize the straightening and positioning of the power head spindle 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 of the two, and through its elastic function, the power head main shaft 102 and the annular space gap formed by the power head main shaft 102 are isolated from the inner cavity of the power head housing 101 to prevent 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 conveying 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 via the front rotary motor connecting flange 207, and its motor drive shaft is connected to the front rotator shaft 201 via 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 via an insert 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 with 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, 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. In this embodiment, the rear rotary motor 303 is fixedly connected to the rear rotary front end cover 306 via the rear rotary motor connecting flange 307, and its motor drive shaft is connected to the rear rotary shaft 301 via a spline / coupling; the other end of the rear rotary shaft 301 is inserted into the rear rotary bearing 304, and the whole is embedded in the rear rotary bearing 304 mounting hole on the power head housing 101; the inner ring of the rear rotary gear 302 is connected to the rear rotary shaft 301 via a key, so as to realize that the power transmitted by the rear rotary motor 303 drives the rear rotary gear 302 to rotate.

[0087] Embodiment 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, it includes a feed body 4, a support plate 5 is movably mounted on the feed body 4, a non-stop drilling differential upper and lower buckle drilling power head is fixedly mounted on the front of the support plate 5, and a drill rod 9 is clamped in the non-stop drilling differential upper and lower buckle drilling power head. In this embodiment, the power head 1 is mounted on the support plate 5 and fixed by bolts to realize the clamping and rotation functions of the drill rod 9.

[0089] As a specific solution of this embodiment, a pair of feeders 6 are installed on the rear of the support plate 5, and 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 realize the forward and backward movement of the support plate 5 relative to the feeding body 4, so as to realize the feeding / pulling function 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 make and break 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 feeder 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 grabbing, retracting and releasing 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, the power head moves to the front position and removes the buckle.

[0095] Step 1.2, clamp the drill rod 9 in the hole by the front chuck 105 of the power head, and 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, the drill rod 9 is grasped by the rod lifting device 8 to the position to be clamped by the rear chuck 106 .

[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 inside of 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 buckling with the currently grabbed drill rod 9.

[0101] Step 1.8, the rod-lifting device 8 is reset to the position to be clamped of the drill rod 9, and the rear rotator 3 is continuously supplied with oil 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 that of the rear rotator 3, the drilling is continued and the drill rod 9 in the hole is buckled.

[0102] Step 2: Unfasten the buckle:

[0103] Step 2.1, move the two drill rods 9 to be broken out to the clamping position 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 reverse until the two are disengaged.

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

[0106] Step 2.4, after supplying oil to the upper rod device 8 to clamp the released drill rod 9, the power head moves forward.

[0107] Step 2.5, the rod-lifting device 8 retracts the drill rod 9, and the power head continues to repeat step S1, so as to realize the function of unbuckling the drill rod 9 without stopping drilling.

Claims

1. A drilling rig with a non-stop drilling differential make-up and make-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 breakaway drilling power head is fixedly mounted on the front part of the support plate (5), and a drill rod (9) is clamped in the non-stop drilling differential breakaway drilling power head; The non-stop drilling differential-speed make-up and make-out drilling power head comprises a power head body (1), a front rotator (2) and a rear rotator (3) are arranged on the top of the power head 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 shell (101), a power head main shaft (102) is rotatably mounted in the bottom of the power head shell (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), 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) can rotate relative to each other; The front rotator (2) comprises a front rotator shaft (201), which is rotatably mounted in 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) comprises 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 meshed with the second gear (104) of the power head; The transmission ratio of the rear rotator (3) is smaller than the transmission ratio 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).

2. The drilling rig with a non-stop drilling differential make-up and break-out drilling power head as claimed in 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 as claimed in 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 as claimed in 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 center bearings (108).

5. The drilling rig with a non-stop drilling differential make-up and break-out drilling power head as claimed in 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 as claimed in 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 installed with a front rotator bearing (204).

7. The drilling rig with a non-stop drilling differential make-up and break-out drilling power head as claimed in 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), and a front rotator motor connecting flange (207) 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 as claimed in 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 installed with a rear rotator bearing (304).

9. The drilling rig with a non-stop drilling differential make-up and break-out drilling power head as claimed in 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 make-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 shell (101), a power head main shaft (102) is rotatably mounted in the bottom of the power head shell (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), 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) can rotate relative to each other; The front rotator (2) comprises a front rotator shaft (201), which is rotatably mounted in 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) comprises 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 meshed with the second gear (104) of the power head; The transmission ratio of the rear rotator (3) is smaller than the transmission ratio 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).

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