CN204603372U - With the hydraulic drilling machine of equilibrium function - Google Patents

Abstract

Hydraulic drilling machine with balance function, including main hydraulic motor, feed hydraulic motor, gearbox body, main body, front body, main shaft, drive sleeve, and cutter head. The gearbox body is fixedly connected with the main body, and the main body is covered with a drive sleeve, and a large spur gear and a worm gear are sequentially arranged at the rear end of the drive sleeve. The main shaft is set in the driving sleeve, the lead screw is set in the main shaft and the lead screw and the main shaft rotate as one, and the rear end of the lead screw is equipped with a large helical gear. The feed hydraulic motor is connected to the feed shaft, and the feed shaft is installed on the gearbox covers on both sides of the gearbox body through the feed shaft support bearings at both ends. The small spur gear meshes with the large spur gear, and the small helical gear meshes with the large helical gear. The front body is fixedly connected with the front flange of the main body. The utility model solves the problem that the existing drilling machine cannot drill holes under high pressure and is lowered and blocked, and can drill holes on non-stop pipelines to ensure the safety of liquid and gas supply and reduce economic losses caused by shutdown.

Description

Hydraulic drilling machine with balance function

technical field

The utility model relates to a pipeline drilling device, in particular to a hydraulic drilling machine with a balancing function used for emergency repair of high-pressure oil and gas transmission pipelines.

Background technique

When oil and gas pipelines are being repaired, pipeline drilling is an essential and very critical step. In the case of high-pressure pipeline drilling, the drilling machine must not only overcome the cutting resistance of the pipeline, but also overcome the pressure of the high-pressure medium. resistance. In the past drilling machines, there was a balance circuit in the drilling header, but the axial force of the high-pressure medium on the main shaft was not balanced. As the diameter of the hole increases, the axial force on the spindle is greater, so that the hole tapping machine cannot open the hole under high pressure and block the bottom. Therefore, if a method can be used to balance the impact of the high-pressure medium on the spindle If the force is applied, it will completely solve the problem of not being able to open the hole and lowering the blockage under high pressure. the

Utility model content

The technical problem to be solved by the utility model is to provide a hydraulic drilling machine with a balancing function, which solves the problem that the existing drilling machine cannot drill holes and is lowered and blocked under high pressure.

The technical solutions adopted are:

Hydraulic drilling machine with balance function, including main hydraulic motor, feed hydraulic motor, gearbox body, main body, front body, main shaft, drive sleeve, cutter head, planetary reducer, clutch fork and handle. The gearbox body and the main body are fixedly connected by screws, the main body is covered with a drive sleeve, and the drive sleeve is installed in the main body through the back-end sleeve support bearing and the front-end sleeve copper bearing, and the rear end of the drive sleeve is sequentially Equipped with large spur and worm gears. The main shaft is installed in the driving sleeve, and the main shaft can slide axially in the keyway of the driving sleeve through the main shaft key. The main shaft is equipped with a screw and the screw and the main shaft rotate as one. The screw is supported by a thrust bearing and a copper bearing of the screw. In the drive sleeve, a large helical gear is installed at the rear end of the lead screw. The output shaft of the feed hydraulic motor is connected with a feed shaft, and the feed shaft is installed on the transmission covers on both sides of the gearbox body through the feed shaft support bearings at both ends. The bearing seat cover is fixed on the gearbox cover on both sides, and the feed hydraulic motor is fixed on the bearing seat cover. A small spur gear and a small helical gear are arranged on the feed shaft located in the gearbox body, and a clutch is arranged between the small spur gear and the small helical gear, wherein the small spur gear is rotationally connected with the feed shaft through a copper bearing. The small spur gear meshes with the large spur gear at the rear end of the drive sleeve, and the small helical gear meshes with the large helical gear at the rear end of the leading screw. The front body is fixedly connected with the front end flange of the main body, and the front part of the main shaft set in the drive sleeve is installed in the front body, and is supported in the front body by the sleeve copper bearing and the main shaft copper bearing. The rear end of the body is equipped with a rear end cover, the main shaft between the rear end cover and the copper bearing of the main shaft is covered with a spring, and the front end of the front body is equipped with a front end cover. A locking shaft is installed in the leading screw, the front end of the locking shaft is connected to the cutter head, and the cutter head is fixedly connected to the front end of the main shaft. The two sides of the gearbox body below the worm wheel are equipped with worm bearing seats, and the worm is installed in the worm bearing seats on both sides through the worm bearings at both ends, and the worm meshes with the worm wheel on the drive sleeve. The worm is connected to the output shaft of the planetary reducer, the planetary reducer is fixedly connected to the end cover of the worm bearing seat, and the main hydraulic motor is connected to the input shaft of the planetary reducer.

The above-mentioned clutch shift fork is connected with the shift fork shaft, the two ends of the shift fork shaft are installed on the gearbox body, and the handle is installed at one end of the shift fork shaft.

A V-shaped combined sealing ring is provided between the above-mentioned front body and the main shaft, and between the main shaft and the locking shaft.

A sealing sleeve is provided between the above-mentioned driving sleeve and the main shaft, between the lead screw and the locking shaft.

The front part of the above-mentioned main body is provided with a balance joint connected to the balance valve of the hydraulic station.

The rear end of the above-mentioned leading screw is equipped with a scale rod, and the scale rod is connected with the locking shaft mounted in the leading screw.

The utility model solves the balance problem that the liquid pressure in the high-pressure delivery pipeline exerts a large force on the main shaft of the drilling machine, and can drill holes on the non-stop delivery pipeline to ensure the safety of liquid and gas supply and reduce the economic loss caused by the stoppage of delivery. It solves the problem that the existing hole tapping machine cannot tap the hole and lowers the blockage under high pressure.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Fig. 2 is a cross-sectional view along line A-A of Fig. 1 .

Detailed ways

Hydraulic drilling machine with balance function, including main hydraulic motor 44, feed hydraulic motor 1, gearbox body 9, main body 23, front body 30, main shaft 22, drive sleeve 24, cutterhead 34, planetary reducer 37, clutch shift fork 41 and handle 42. The gearbox body 9 and the main body 23 are fixedly connected by screws, the main body 23 is covered with a drive sleeve 24, and the drive sleeve 24 is mounted on the main body 23 through the rear end sleeve support bearing 20 and the front end sleeve copper bearing 27. Inside, a large spur gear 18 and a worm wheel 16 are sequentially installed at the rear end of the drive sleeve 24 . The main shaft 22 is set in the driving sleeve 24, and the main shaft 22 can slide axially in the keyway of the driving sleeve 24 through the main shaft key 21. 25 is supported in the drive sleeve by thrust bearing 17 and leading screw copper bearing 14, and large helical gear 15 is equipped with leading screw 25 rear ends. The output shaft of the feed hydraulic motor 1 is connected with a feed shaft 12, and the feed shaft 12 is installed on the gearbox cover 10 on both sides of the gearbox body 9 through the feed shaft support bearings 3 at both ends, and the bearings at both ends are respectively connected with The bearing cover 11, the bearing seat 4 and the bearing seat cover 2 are fixed on the gearbox covers 10 on both sides, and the feed hydraulic motor 1 is fixed on the bearing seat cover 2. A small spur gear 5 and a small helical gear 8 are installed on the feed shaft 12 located in the gearbox body, and a clutch 7 is installed between the small spur gear 5 and the small helical gear 8, wherein the small spur gear 5 is connected to the feed shaft through a copper bearing 6 12 Turn to connect. The small spur gear 5 meshes with the large spur gear 18 at the rear end of the drive sleeve 24 , and the small helical gear 8 meshes with the large helical gear 15 at the rear end of the leading screw 25 . The front body 30 is fixedly connected to the front end flange of the main body 23, and the front part of the main shaft 22, which is set in the drive sleeve 24, is installed in the front body 30, and through the sleeve copper bearing 27 and the main shaft copper bearing 32 Supported in the front body 30, the front body 30 rear end is equipped with a rear end cover 28, the main shaft between the rear end cover 28 and the main shaft copper bearing 32 is covered with a spring 31, and the front end of the front body 30 is equipped with a front end cover 33. A locking shaft 26 is installed in the leading screw 25 , the front end of the locking shaft 26 is connected to the cutterhead 34 , and the cutterhead 34 is fixedly connected to the front end of the main shaft 22 . The rear end of the leading screw 25 is equipped with a scale rod 13, and the scale rod 13 is connected with a locking shaft 26 mounted in the leading screw. The two sides of the gearbox housing below the worm gear 16 are equipped with worm bearings 43, and the worm 39 is installed in the worm bearings 43 on both sides by the worm bearings 36 at both ends, and the worm 39 is engaged with the worm gear 16 on the drive sleeve. The worm 39 is connected to the output shaft of the planetary reducer 37, and the planetary reducer 37 is fixedly connected to the end cover 38 of the worm bearing seat, and the main hydraulic motor 44 is connected to the input shaft of the planetary reducer 37. The clutch shift fork 41 is connected to the shift fork shaft 40, the two ends of the shift fork shaft 40 are installed on the gearbox body 9, and the handle 42 is installed at one end of the shift fork shaft 40. V-shaped combined sealing rings 29 are provided between the front body 30 and the main shaft 22 , and between the main shaft 22 and the locking shaft 26 . Sealing sleeves 19 are provided between the driving sleeve 24 and the main shaft 22 , and between the lead screw 25 and the locking shaft 26 . The front part of the main body 23 is provided with a balance joint 35 connected to the balance valve of the hydraulic station.

Principle of hydraulic drilling machine with balance function

When the clutch and the small spur gear are in the combined state, the main hydraulic motor drives the worm gear to decelerate, and then transmits the power to the drive sleeve. The large spur gear is installed on the drive sleeve. The large spur gear meshes with the small spur gear, and the small spur gear passes through The feed shaft drives the small helical gear to rotate, and the small helical gear meshes with the large helical gear to transmit the power to the lead screw. Since the small spur gear and the small helical gear have the same number of teeth, the large spur gear and the large helical gear have a difference of 2 teeth. The drive sleeves have the same rotational speed, and the main shaft can slide axially in the keyway of the drive sleeve through keying, so a differential speed function is formed between the screw and the main shaft, and the feed movement of the main shaft is realized.

When the clutch and the small spur gear are separated, the feed hydraulic motor drives the lead screw to rotate to realize the rapid telescopic function of the main shaft.

In this drilling machine, a sealing device is added between the drive sleeve and the main shaft, and a sealing device is also added between the screw and the locking shaft, so that a sealed cavity similar to a plunger cylinder is formed between the drive sleeve, the main shaft and the screw. , the sealing chamber is connected to the balance valve end of the hydraulic station through the rubber hose, and the hydraulic station injects a certain pressure of hydraulic oil into the sealing chamber to balance the pressure of the pipeline medium on the main shaft.

Claims (5)

1. Hydraulic drilling machine with balance function, including main hydraulic motor (44), feed hydraulic motor (1), gearbox body (9), main body (23), front body (30), main shaft (22) , drive sleeve (24), cutter head (34), planetary reducer (37), clutch shift fork (41) and handle (42), characterized in that the gearbox body (9) and the main body ( 23) Fixed and connected by screws, the main body (2) is covered with a drive sleeve (24), and the drive sleeve (24) is installed on the main body through the back-end sleeve support bearing (20) and the front-end sleeve copper bearing (27) Inside (23), a large spur gear (18) and a worm gear (16) are sequentially installed at the rear end of the driving sleeve (24), and the main shaft (22) is set inside the driving sleeve (24), and the main shaft (22) passes through the main shaft key (21) can slide axially in the keyway of the drive sleeve (24), the screw (25) is set inside the main shaft (22) and the screw (25) and the main shaft (22) rotate as one, the screw (25) passes through The thrust bearing (17) and the lead screw copper bearing (14) are supported in the drive sleeve, the rear end of the lead screw (25) is equipped with a large helical gear (15), and the output shaft of the feed hydraulic motor (1) is connected with a feed The shaft (12), the feed shaft (12) is installed on the transmission cover (10) on both sides of the transmission case (9) through the feed shaft support bearings (3) at both ends, and the bearings at both ends are respectively connected to the bearing cover (11 ), the bearing seat (4) and the bearing seat cover (2) are fixed on the gearbox cover (10) on both sides, the feed hydraulic motor (1) is fixed on the bearing seat cover (2), and the feeder located in the gearbox body A small spur gear (5) and a small helical gear (8) are housed on the feed shaft (12), and a clutch (7) is housed between the small spur gear (5) and the small helical gear (8), wherein the small spur gear (5) The copper bearing (6) is connected to the feed shaft (12) in rotation, the small spur gear (5) meshes with the large spur gear (18) at the rear end of the drive sleeve (24), and the small helical gear (8) and the lead screw (25 ) meshes with the large helical gear (15) at the rear end, the front body (30) is fixedly connected with the front flange of the main body (23), and the front part of the main shaft (22) sleeved in the drive sleeve (24) wears Installed in the front body (30), and supported in the front body (30) through the sleeve copper bearing (27) and the main shaft copper bearing (32), the rear end of the front body (30) is equipped with a rear end cover (28), A spring (31) is overcoated on the main shaft between the rear end cover (28) and the copper bearing of the main shaft (32). The tightening shaft (26), the front end of the locking shaft (26) is connected to the cutter head (34), and the cutter head (34) is fixedly connected to the front end of the main shaft (22), and is located on both sides of the gearbox body below the worm wheel (16) The worm bearing seat (43) is installed, and the worm (39) is installed in the worm bearing seats (43) on both sides through the worm bearings (36) at both ends, and the worm (39) meshes with the worm wheel (16) on the drive sleeve, and the worm (39) Connect the output shaft of the planetary reducer (37), and the planetary reducer The speed machine (37) is fixedly connected to the end cover (38) of the worm bearing seat, the main hydraulic motor (44) is connected to the input shaft of the planetary reducer (37), and the clutch fork (41) is connected to the fork shaft (40) , the two ends of the shift fork shaft (40) are installed on the gearbox body (9), and the handle (42) is installed at one end of the shift fork shaft (40). 2. The hydraulic hole tapping machine with balancing function according to claim 1, characterized in that there are both between the front body (30) and the main shaft (22), and between the main shaft (22) and the locking shaft (26). There is a V-shaped combined sealing ring (29). 3. The hydraulic drilling machine with balancing function according to claim 1, characterized in that the distance between the drive sleeve (24) and the main shaft (22), between the screw (25) and the locking shaft (26) All are provided with sealing sleeve (19). 4. The hydraulic drilling machine with balance function according to claim 1, characterized in that the front part of the main body (23) is provided with a balance joint (35) connected to the balance valve of the hydraulic station. 5. The hydraulic drilling machine with balancing function according to claim 1, characterized in that the rear end of the screw (25) is equipped with a scale rod (13), and the scale rod (13) is connected with the wire The locking shaft (26) in the bar is connected.