Hydraulic piercing machine based on variable feed technology

Abstract

The utility model discloses a hydraulic tapping machine based on variable feeding technology belongs to pipeline tapping technical field, a hydraulic tapping machine based on variable feeding technology, include: outer sleeve and main shaft, one end of outer sleeve is installed with lower box, the lower box inside is installed with the lower -positioned drive mechanism for driving main shaft rotation tapping, the end portion away from outer sleeve of lower box is installed with front body subassembly, this hydraulic tapping machine based on variable feeding technology, screw rod feed motor and main motor are connected with hydraulic station respectively, and the information feedback of screw rod motor encoder and main motor encoder collection motor revolution is given to hydraulic station, and the oil supply flow and pressure of two motors are adjusted through information processing to realize the variable feeding function of tapping machine, thereby making main shaft can have two kinds of feeding mode, one is continuous feeding, and the other is variable feeding, and the different feeding mode of different pipeline can be used conveniently.

Description

Technical Field

[0001] This utility model relates to the field of pipe tapping technology, specifically a hydraulic tapping machine based on variable feed technology. Background Technology

[0002] In the field of oil and gas pipeline maintenance and repair, hydraulic tapping machines are key equipment for maintaining pipeline integrity, undertaking the core task of safely tapping holes in operating pipelines. Traditional tapping machines adopt a mechanical design with a fixed feed rate, where the downward stroke of the main shaft is determined by the fixed transmission ratio of the gear worm or lead screw pair. This rigid structure means that the feed rate per revolution cannot be dynamically adjusted according to the pipeline material (X60-X80 grade pipeline steel), pipe diameter range (DN200-DN1200), and formation stress state. According to statistics, when dealing with high-strength pipeline steel (≥X70), the tapping efficiency of traditional equipment decreases by 40%, and the tool wear rate increases by 300%, seriously affecting the timeliness of emergency repair operations.

[0003] Material adaptability requirements: my country's oil and gas pipeline network spans 28 geological structural units, and the pipeline materials range from X52 in the 1990s to the current mainstream X65 / X70, with a yield strength difference of 450-555MPa, requiring real-time matching of cutting parameters.

[0004] Dynamic working condition response: The complex stress field formed by variables such as pipeline burial depth (1.2-30 meters), internal pressure (4-12MPa), and medium temperature (-30℃ to +60℃) requires intelligent adjustment of the feed rate to maintain cutting stability.

[0005] Emergency repair time requirements: According to GB50253 standard, Class B emergency repairs must be completed within 12 hours for pressurized drilling. Traditional fixed feed mode is difficult to meet the time window requirements. Utility Model Content

[0006] The purpose of this invention is to provide a hydraulic tapping machine based on variable feed technology. By rotating the stirring blades, the fuel undergoes centrifugal defoaming during its flow, and the defoamed gas is discharged through components such as the exhaust pipe, thereby increasing the accuracy of fuel measurement by the piston flow meter.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a hydraulic drilling machine based on variable feed technology, comprising: an outer sleeve and a main shaft; a lower housing is installed at one end of the outer sleeve; a lower drive mechanism for driving the main shaft to rotate and drill holes is installed inside the lower housing; a front body assembly is installed at the end of the lower housing away from the outer sleeve; a front housing is installed at the other end of the outer sleeve; a screw drive mechanism for driving the main shaft to extend is installed inside the front housing; a shifting mechanism for engaging and disengaging the screw drive mechanism is installed on the side of the front housing; a main shaft is installed through the axial center of the outer sleeve, lower housing, front body assembly, and front housing; a cutting tool for drilling holes is provided at one end of the main shaft; a drive sleeve is sleeved on the outer surface of the main shaft; and a feed screw is threadedly connected inside the main shaft.

[0008] The lower drive mechanism includes a main drive gear and a main drive large gear. The main drive gear is rotatably installed inside the lower housing, and a main drive large gear that cooperates with the main drive gear is fixedly installed at one end of the drive sleeve.

[0009] The lead screw transmission mechanism includes a small helical gear with a right-hand rotation, a large helical gear with a left-hand rotation, a small spur gear, and a large spur gear. The other end of the drive sleeve is fixedly installed with a large helical gear with a left-hand rotation, and the side of the large helical gear with a left-hand rotation is connected to a matching small helical gear with a right-hand rotation.

[0010] A large spur gear is fixedly installed at one end of the feed screw, and a matching small spur gear is connected to the side of the large spur gear. The number of gears of the small helical gear is different from that of the large helical gear and the small spur gear.

[0011] The shifting mechanism includes a shift fork bushing and a shift block. The shift fork bushing is fixedly installed on one side of the center of the right-hand axis of the small helical gear. The outer surface of the shift fork bushing is provided with an annular groove. The shift block moves inside the annular groove, and the annular groove restricts the shift block to the left and right.

[0012] Preferably, rotating the drive sleeve can drive the main shaft to rotate coaxially, and at the same time, the main shaft can move horizontally along the axis of the drive sleeve. The drive sleeve is rotatably mounted inside the outer sleeve through bearings, and the two ends of the drive sleeve are respectively rotatably mounted inside the lower housing and the front housing.

[0013] Rotating the feed screw can drive the main shaft to slide spirally inside the drive sleeve. The feed screw passes through the end of the front housing via a bearing, and a locking shaft is connected through the inside of the feed screw.

[0014] Preferably, the lower drive mechanism further includes a main motor, a planetary gear reducer, and a main motor encoder. The planetary gear reducer is installed on the outer surface of the lower housing, and the output end of the planetary gear reducer is connected to the main drive gear.

[0015] The input end of the planetary gear reducer is equipped with a main motor, which is connected to a hydraulic station via a pipe. The main motor is equipped with a main motor encoder, which is connected to the hydraulic station via an electrical wire.

[0016] Preferably, the lead screw transmission mechanism further includes a lead screw feed motor, a driven shaft, and a lead screw motor encoder. The lead screw feed motor is fixedly installed on the side of the front housing. The lead screw feed motor is connected to a hydraulic station through a pipe. The lead screw feed motor is equipped with a lead screw motor encoder, and the lead screw motor encoder is connected to the hydraulic station through an electric wire.

[0017] The output end of the lead screw feed motor passes through the surface of the front housing and is connected to a driven shaft. The end of the driven shaft passes through the shift fork bushing, the axial center of the small helical gear and the small spur gear and is rotatably connected to the inner wall of the front housing. Moving the shift block can drive the shift fork bushing and the small helical gear to move axially horizontally on the driven shaft.

[0018] Preferably, the shifting mechanism further includes a shift fork shaft and a handle. The shift fork shaft is rotatably mounted through the outer surface of the front housing. A shift block is mounted at one end of the shift fork shaft near the inner side of the front housing, and a detachable handle is mounted at the other end of the shift fork shaft.

[0019] Compared with the prior art, the beneficial effects of this utility model are: this hydraulic drilling machine based on variable feed technology.

[0020] 1. The machine is equipped with a small helical gear that rotates to the right and a small spur gear that rotate to the left and a large helical gear that rotate to the right, respectively. When the large helical gear rotates to the left and the large spur gear rotates, they can drive the drive sleeve and the feed screw to rotate, respectively. The rotation of the drive sleeve and the feed screw can drive the main shaft to rotate and feed continuously. In the shifting state, the screw feed motor and the main motor can be connected to the hydraulic station. The encoders of the screw motor and the main motor collect the motor speed information and feed it back to the hydraulic station. The hydraulic station processes the information and adjusts the oil supply flow and pressure of the two motors to realize the variable feed function of the hole punch. This allows the main shaft to have two feed modes: continuous feed and variable feed, which can be used according to different pipelines.

[0021] 2. When the handle is turned to the right, it can drive the shift fork shaft to turn to the right. When the shift fork shaft turns to the right, it can drive the bottom of the shift block to turn to the left. When the shift block turns to the left, it can drive the shift fork shaft sleeve and the small helical gear to rotate to the right and move axially on the driven shaft through the arc groove. When the small helical gear moves to the right, it will separate from the large helical gear rotates to the left. After the small helical gear rotates to the right and the large helical gear rotates to the left, the main drive large gear and the large spur gear can independently control the drive sleeve and the feed screw. The switching method is convenient and the stability is high. Attached Figure Description

[0022] Figure 1 This is a structural front view of the present invention;

[0023] Figure 2 This is a top view of the structure of this utility model;

[0024] Figure 3 This is a cross-sectional structural schematic diagram of the present invention;

[0025] Figure 4 yes Figure 3 A magnified view of a portion of point A in the middle.

[0026] In the picture: 10. Outerwear sleeve;

[0027] 20. Lower drive mechanism; 21. Main motor; 22. Planetary gear reducer; 23. Main drive gear; 24. Main drive large gear; 25. Main motor encoder;

[0028] 30. Front fuselage assembly;

[0029] 40. Screw drive mechanism; 41. Screw feed motor; 42. Driven shaft; 43. Small helical gear (right-hand); 44. Large helical gear (left-hand); 45. Small spur gear; 46. Large spur gear; 47. Screw motor encoder;

[0030] 60. Drive sleeve;

[0031] 70. Spindle;

[0032] 80. Feed screw;

[0033] 90. Locking shaft;

[0034] 100. Gear shifting mechanism; 101. Shift fork bushing; 102. Shift block; 103. Shift fork shaft; 104. Handle;

[0035] 110. Lower box;

[0036] 120. Front box. Detailed Implementation

[0037] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0038] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be used interchangeably where appropriate for the embodiments of this application described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or vehicle that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or vehicles.

[0039] Furthermore, the terms "installation," "setup," "equipped with," "connection," "linking," and "socketing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0040] Please see Figures 1-3 This utility model provides an embodiment: a hydraulic drilling machine based on variable feed technology, including: an outer sleeve 10 and a main shaft 70. A lower housing 110 is installed at one end of the outer sleeve 10. A lower drive mechanism 20 for driving the main shaft 70 to rotate and drill holes is installed inside the lower housing 110. A front body assembly 30 is installed at the end of the lower housing 110 away from the outer sleeve 10. A front housing 120 is installed at the other end of the outer sleeve 10. A lead screw transmission mechanism 40 for driving the main shaft 70 to extend is installed inside the front housing 120. A shifting mechanism 100 for engaging and disengaging the lead screw transmission mechanism 40 is installed on the side of the front housing 120. The main shaft 70 is installed through the axial center of the outer sleeve 10, lower housing 110, front body assembly 30 and front housing 120. A cutting tool for drilling holes is provided at one end of the main shaft 70. A drive sleeve 60 is sleeved on the outer surface of the main shaft 70. A feed screw 80 is threadedly connected inside the main shaft 70.

[0041] It should be noted that the main shaft 70 of the hydraulic tapping machine is placed at the designated position on the pipeline, and the hydraulic tapping machine is fixed. After the hydraulic tapping machine is fixed, the screw drive mechanism 40 can drive the drive sleeve 60 and the feed screw 80 to rotate simultaneously through the components. When the drive sleeve 60 rotates, it can drive the internal main shaft 70 to rotate. When the main shaft 70 rotates, it can tap the pipeline. When the feed screw 80 rotates, it can drive the outer surface of the main shaft 70 to slide threadedly. When the main shaft 70 slides threadedly, it can feed axially and horizontally inside the drive sleeve 60. When it is necessary to pause the feed, the screw drive mechanism 40 can be disengaged by operating the shift mechanism 100. Disengaging the screw drive mechanism 40 will stop the feed and drive the drive sleeve 60 to continue rotating through the lower drive mechanism 20.

[0042] like Figures 1-3 As shown, the lower drive mechanism 20 includes a main drive gear 23 and a main drive gear 24. The main drive gear 23 is rotatably installed inside the lower housing 110, and the main drive gear 24, which cooperates with the main drive gear 23, is fixedly installed at one end of the drive sleeve 60.

[0043] It is conceivable that when the main drive gear 23 rotates, it can rotate inside the lower housing 110. When the main drive gear 23 rotates, it can drive the main drive gear 24 to mesh and rotate. When the main drive gear 24 meshes and rotates, it can drive the drive sleeve 60 to rotate inside the lower housing 110, the outer sleeve 10 and the front housing 120.

[0044] like Figure 3 and Figure 4 As shown, the lead screw drive mechanism 40 includes a small helical gear (right-hand) 43, a large helical gear (left-hand) 44, a small spur gear 45, and a large spur gear 46. The large helical gear (left-hand) 44 is fixedly installed at the other end of the drive sleeve 60. The small helical gear (right-hand) 43 is connected to the side of the large helical gear (left-hand) 44. The large spur gear 46 is fixedly installed at one end of the feed lead screw 80. The small spur gear 45 is connected to the side of the large spur gear 46. The number of gears of the small helical gear (right-hand) 43, the large helical gear (left-hand) 44, the small spur gear 45, and the large spur gear 46 are different.

[0045] It is worth noting that when the small helical gear 43 rotates to the right, it can drive the large helical gear 44 to rotate to the left. When the large helical gear 44 rotates to the left, it can drive one end of the drive sleeve 60 to rotate. When the drive sleeve 60 rotates, it can drive the main shaft 70 to rotate. It can also drive the large spur gear 46 to rotate through the rotation of the small spur gear 45. When the large spur gear 46 rotates to the left, it can drive the feed screw 80 to rotate. Because there is a difference in the number of gears between the small helical gear 43 and the large helical gear 44 and the small spur gear 45 and the large spur gear 46, the speeds of the feed screw 80 and the drive sleeve 60 are different. The feed screw 80 can drive the main shaft 70 to slide threadedly inside the drive sleeve 60.

[0046] like Figure 2 and Figure 4 As shown, the shifting mechanism 100 includes a shift fork bushing 101 and a shift block 102. The shift fork bushing 101 is fixedly installed on one side of the axial center of the right-hand helical gear 43. The outer surface of the shift fork bushing 101 is provided with an annular groove. The shift block 102 moves inside the annular groove, and the annular groove restricts the shift block 102 to the left and right.

[0047] It is clear that when the lever 102 rotates to the right, it can drive the shift fork sleeve 101 to move axially on the driven shaft 42 through the annular groove. When the shift fork sleeve 101 moves axially, it can drive the small helical gear to rotate right 43 and the large helical gear to rotate left 44 to separate. When the lever 102 rotates to the left, it can connect the small helical gear to rotate right 43 and the large helical gear to rotate left 44 through the shift fork sleeve 101.

[0048] When the driven shaft 42 rotates, it will drive the shift fork bushing 101 and the small spur gear 45 to rotate. When the shift fork bushing 101 rotates, it can rotate with the shift block 102 through the annular groove.

[0049] like Figures 1-3 As shown, rotating the drive sleeve 60 can drive the main shaft 70 to rotate coaxially, and at the same time, the main shaft 70 can move horizontally along the axis of the drive sleeve 60. The drive sleeve 60 is rotatably mounted inside the outer sleeve 10 through bearings. The two ends of the drive sleeve 60 are respectively rotatably mounted inside the lower housing 110 and the front housing 120. Rotating the feed screw 80 can drive the main shaft 70 to slide spirally inside the drive sleeve 60. The feed screw 80 passes through the end of the front housing 120 through the bearings, and a locking shaft 90 is connected through the inside of the feed screw 80.

[0050] It should be understood that rotating the drive sleeve 60 can drive the spindle 70 to rotate. When the spindle 70 rotates, it can open holes in the pipe using the cutting tool at its end. When the feed screw 80 rotates, it can drive the spindle 70 to slide helically inside the drive sleeve 60. When the spindle 70 slides threadedly, it can move horizontally along the axis of the drive sleeve 60, allowing the spindle 70 to feed when opening holes in the pipe.

[0051] like Figures 1-3 As shown, the lower drive mechanism 20 also includes a main motor 21, a planetary gear reducer 22, and a main motor encoder 25. The planetary gear reducer 22 is installed on the outer surface of the lower housing 110. The output end of the planetary gear reducer 22 is connected to the main drive gear 23. The main motor 21 is installed on the input end of the planetary gear reducer 22. The main motor 21 is connected to a hydraulic station through a pipe. The main motor encoder 25 is installed on the main motor 21. The main motor encoder 25 is connected to the hydraulic station through an electric wire.

[0052] It should be noted that when the main motor 21 is working, it will drive the planetary gear reducer 22 to work. When the planetary gear reducer 22 is working, it can drive the main drive gear 23 to rotate. At the same time, the main motor 21 can transmit information to the main motor encoder 25. The main motor encoder 25 receives the information from the main motor 21 and transmits it to the hydraulic station. The hydraulic station adjusts the oil supply flow and pressure of the main motor 21 through information processing, thereby realizing the variable feed function of the drilling machine.

[0053] like Figures 1-4 As shown, the screw drive mechanism 40 also includes a screw feed motor 41, a driven shaft 42, and a screw motor encoder 47. The screw feed motor 41 is fixedly installed on the side of the front housing 120. The screw feed motor 41 is connected to a hydraulic station through a pipe. The screw feed motor encoder 47 is installed on the screw feed motor 41. The screw motor encoder 47 is connected to the hydraulic station through an electric wire. The output end of the screw feed motor 41 passes through the surface of the front housing 120 and is connected to the driven shaft 42. The end of the driven shaft 42 passes through the axial center of the shift fork bushing 101, the right-hand helical gear 43, and the small spur gear 45 and is rotatably connected to the inner wall of the front housing 120. Moving the shift block 102 can drive the shift fork bushing 101 and the right-hand helical gear 43 to move axially horizontally on the driven shaft 42.

[0054] It is conceivable that when the lead screw feed motor 41 is working, it can drive the driven shaft 42 to rotate within the front housing 120. When the driven shaft 42 rotates, it can drive the shift fork bushing 101, the small helical gear right-hand 43, and the small spur gear 45 to rotate. When the lead screw feed motor 41 is working, it will transmit information to the lead screw motor encoder 47. The lead screw motor encoder 47 will transmit the information received from the lead screw feed motor 41 to the hydraulic station. The hydraulic station will adjust the oil supply flow and pressure of the lead screw feed motor 41 through information processing, thereby realizing the variable feed function of the drilling machine.

[0055] like Figures 2-4As shown, the shift mechanism 100 also includes a shift fork shaft 103 and a handle 104. The shift fork shaft 103 is rotatably mounted through the outer surface of the front housing 120. A shift block 102 is mounted on one end of the shift fork shaft 103 near the inner side of the front housing 120, and a detachable handle 104 is mounted on the other end of the shift fork shaft 103.

[0056] It is worth noting that the handle 104 is installed at the end of the shift fork shaft 103. After the handle 104 is installed, it can be rotated. When the handle 104 is rotated to the right, it can drive the shift fork shaft 103 to rotate to the right. When the shift fork shaft 103 rotates to the right, it can drive the bottom of the shift block 102 to rotate to the left. When the shift block 102 rotates to the left, it can drive the shift fork shaft sleeve 101 to move axially on the driven shaft 42 through the arc groove.

[0057] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A hydraulic drilling machine based on variable feed technology, comprising: The device comprises an outer sleeve and a main spindle. A lower housing is mounted at one end of the outer sleeve. A lower drive mechanism for driving the main spindle to rotate and open holes is installed inside the lower housing. A front body assembly is mounted at the end of the lower housing away from the outer sleeve. A front housing is mounted at the other end of the outer sleeve. A lead screw transmission mechanism for driving the main spindle to extend is installed inside the front housing. A shifting mechanism for engaging and disengaging the lead screw transmission mechanism is mounted on the side of the front housing. The main spindle is installed through the axial center of the outer sleeve, lower housing, front body assembly, and front housing. One end of the main spindle is provided with a cutting tool for opening holes. The main spindle is characterized by having a drive sleeve fitted onto its outer surface and a feed screw threaded into its interior. The lower drive mechanism includes a main drive gear and a main drive large gear. The main drive gear is rotatably installed inside the lower housing, and a main drive large gear that cooperates with the main drive gear is fixedly installed at one end of the drive sleeve. The lead screw transmission mechanism includes a small helical gear with a right-hand rotation, a large helical gear with a left-hand rotation, a small spur gear, and a large spur gear. The other end of the drive sleeve is fixedly installed with a large helical gear with a left-hand rotation, and the side of the large helical gear with a left-hand rotation is connected to a matching small helical gear with a right-hand rotation. A large spur gear is fixedly installed at one end of the feed screw, and a matching small spur gear is connected to the side of the large spur gear. The number of gears of the small helical gear is different from that of the large helical gear and the small spur gear. The shifting mechanism includes a shift fork bushing and a shift block. The shift fork bushing is fixedly installed on one side of the center of the right-hand axis of the small helical gear. The outer surface of the shift fork bushing is provided with an annular groove. The shift block moves inside the annular groove, and the annular groove restricts the shift block to the left and right.

2. The hydraulic drilling machine based on variable feed technology according to claim 1, characterized in that: Rotating the drive sleeve can drive the main shaft to rotate coaxially, and at the same time, the main shaft can move horizontally along the axis of the drive sleeve. The drive sleeve is rotatably installed inside the outer sleeve through bearings, and the two ends of the drive sleeve are respectively rotatably installed inside the lower housing and the front housing. Rotating the feed screw can drive the main shaft to slide spirally inside the drive sleeve. The feed screw passes through the end of the front housing via a bearing, and a locking shaft is connected through the inside of the feed screw.

3. A hydraulic drilling machine based on variable feed technology according to claim 1, characterized in that: The lower drive mechanism also includes a main motor, a planetary gear reducer and a main motor encoder. The planetary gear reducer is installed on the outer surface of the lower housing, and the output end of the planetary gear reducer is connected to the main drive gear. The input end of the planetary gear reducer is equipped with a main motor, which is connected to a hydraulic station via a pipe. The main motor is equipped with a main motor encoder, which is connected to the hydraulic station via an electrical wire.

4. A hydraulic drilling machine based on variable feed technology according to claim 1, characterized in that: The lead screw transmission mechanism also includes a lead screw feed motor, a driven shaft, and a lead screw motor encoder. The lead screw feed motor is fixedly installed on the side of the front housing. The lead screw feed motor is connected to a hydraulic station through a pipe. The lead screw feed motor encoder is installed on the lead screw feed motor. The lead screw motor encoder is connected to the hydraulic station through an electric wire. The output end of the lead screw feed motor passes through the surface of the front housing and is connected to a driven shaft. The end of the driven shaft passes through the shift fork bushing, the axial center of the small helical gear and the small spur gear and is rotatably connected to the inner wall of the front housing. Moving the shift block can drive the shift fork bushing and the small helical gear to move axially horizontally on the driven shaft.

5. A hydraulic drilling machine based on variable feed technology according to claim 1, characterized in that: The shifting mechanism also includes a shift fork shaft and a handle. The shift fork shaft is rotatably mounted through the outer surface of the front housing. A shift block is installed at one end of the shift fork shaft near the inner side of the front housing, and a detachable handle is installed at the other end of the shift fork shaft.

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