Air bag push disc clutch mechanism applied to petroleum drilling and production heavy equipment

Abstract

The invention discloses an air bag push disc clutch mechanism applied to petroleum drilling and production heavy equipment, and belongs to the technical field of clutches. The air bag push disc clutch mechanism comprises a fixing ring, a first mounting ring is arranged at one end of the fixing ring, and an annular air bag body is mounted at the end, away from the fixing ring, of the first mounting ring; a second mounting ring is mounted at the end, away from the first mounting ring, of the annular airbag body, and a connecting ring is mounted at the end, away from the annular airbag body, of the second mounting ring. The annular air bag body communicates with the annular bin through the multiple sets of ventilation pipes, so that air is transferred through the annular bin in the process of entering and exiting the annular air bag body and enters and exits the annular air bag body through the evenly-distributed ventilation pipes, and then the air can enter and exit the annular air bag body more evenly; and the problems that the balance effect of driving force is affected due to insufficient uniformity of inlet and outlet air and the service life is affected due to uneven deformation are avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of clutches, and particularly relates to an airbag push - disc clutch mechanism applied to heavy equipment for oil drilling and production. Background Art

[0002] Oil is one of the main fossil energy sources in modern society. Since oil deposits are often large in scale, a variety of heavy equipment is required in the mining process. Many of these equipment outputs are achieved through rotation. Therefore, clutches are generally equipped on these heavy equipment. The airbag push - disc clutch is one of them. It drives the connection between the output part and the input part through the expansion of the airbag, and then realizes the transmission task.

[0003] When the existing airbag push - disc clutch mechanism applied to heavy equipment for oil drilling and production is in use, its airbag part is connected to the air intake and exhaust parts through a pipeline, so as to inflate the airbag to make it expand and push the input part and the output part to connect, or discharge the gas in the airbag to realize the contact connection between the input part and the output part. However, in the actual application process, it often uses a single pipeline to achieve the above functions, resulting in uneven air in and out of the airbag, and then uneven expansion and contraction of each part of the airbag, which affects the balance of its driving force. After long - term use, the airbag itself is more likely to have uneven stress deformation due to this situation, affecting its service life. Summary of the Invention

[0004] In order to overcome the above - mentioned defects, the invention provides an airbag push - disc clutch mechanism applied to heavy equipment for oil drilling and production, which solves the problems that the existing airbag push - disc clutch mechanism for heavy equipment for oil drilling and production has uneven driving force due to single - pipeline air inlet and outlet and uneven deformation affecting its service life.

[0005] To achieve the above purpose, the invention provides the following technical solution: An airbag push - disc clutch mechanism applied to heavy equipment for oil drilling and production, including a fixed ring. One end of the fixed ring is provided with a first mounting ring, and a ring - shaped airbag body is installed at the end of the first mounting ring away from the fixed ring. One end of the ring - shaped airbag body away from the first mounting ring is installed with a second mounting ring. One end of the second mounting ring away from the ring - shaped airbag body is installed with a connecting ring. One end of the connecting ring away from the second mounting ring is installed with a rotating ring. One end of the rotating ring away from the connecting ring is installed with a pressure plate.

[0006] A flywheel is arranged at the end of the pressure plate away from the rotating ring, and an output shaft is installed at the end of the flywheel away from the pressure plate.

[0007] A transmission shaft is installed at the middle position of the end of the pressure plate away from the flywheel, and an input shaft is arranged inside the transmission shaft. An elastic resetting member is connected between the input shaft and the transmission shaft.

[0008] One end of the fixed ring away from the first mounting ring is provided with an annular chamber. One end of the annular airbag body close to the annular chamber is uniformly penetrated and installed with air pipes, and the air pipes penetrate through the first mounting ring and the fixed ring and extend into the interior of the annular chamber;

[0009] An air inlet mechanism for sending air into the interior thereof is provided on the annular chamber, and an exhaust mechanism for discharging the air inside the annular chamber is provided on the annular chamber;

[0010] A pressing ring is provided on the outer side of the annular chamber, and a connecting mechanism for fixing the fixed ring and the annular chamber is provided on the pressing ring;

[0011] A limiting groove is opened on the outer side of the air pipe, mounting cavities are uniformly opened inside the outer wall of the annular chamber, and a limiting mechanism for fixing the air pipe and the annular chamber is provided inside the mounting cavities.

[0012] As a further scheme of the present invention: The central axis of the transmission shaft coincides with the central axis of the input shaft, and the transmission shaft is slidably connected to the input shaft.

[0013] As a further scheme of the present invention: Two groups of guiding grooves are opened at one end of the fixed ring close to the annular airbag body. A guiding and limiting spline ring is arranged inside the guiding grooves, and one end of the guiding and limiting spline ring away from the guiding grooves is fixedly connected to the connecting ring.

[0014] As a further scheme of the present invention: The guiding and limiting spline ring and the guiding grooves form a relative sliding structure, and the guiding and limiting spline ring is in close fit with the annular airbag body.

[0015] As a further scheme of the present invention: The air inlet mechanism includes an air inlet pipe, the air inlet pipe is communicated with the top of one end of the annular chamber away from the fixed ring, and an air inlet check valve is installed on the outer side of the air inlet pipe.

[0016] As a further scheme of the present invention: The exhaust mechanism includes an exhaust pipe, the exhaust pipe is communicated with the bottom of one end of the annular chamber away from the fixed ring, and an electromagnetic valve is installed on the outer side of the annular chamber.

[0017] As a further scheme of the present invention: The connecting mechanism includes four groups of screw rods, and the four groups of screw rods are uniformly penetrated through the edge of one end of the pressing ring, and the screw rods penetrate through the annular chamber and the fixed ring. A nut is sleeved on the outer side of one end of the screw rod close to the fixed ring.

[0018] As a further scheme of the present invention: The central axis of the nut coincides with the central axis of the screw rod, and the nut is threadedly connected to the screw rod.

[0019] As a further solution of the present invention: The limiting mechanism includes a limiting member, the limiting member is arranged inside the installation cavity, and the limiting member penetrates through the annular bin and extends into the limiting groove, and an elastic body is connected between the limiting member and the annular bin.

[0020] As a further solution of the present invention: The cross-sectional shape of the limiting member is "cross-shaped", and the limiting member is slidably connected to the annular bin, and the top end of the limiting member is semi-circular.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0022] 1. Since the annular airbag body and the annular bin are communicated through a plurality of groups of ventilation pipes, when air enters and exits the annular airbag body, it will pass through the transfer of the annular bin and enter and exit the annular airbag body through the uniformly distributed ventilation pipes. Furthermore, the air entering and exiting the annular airbag body can be more uniform, avoiding the uneven influence on the driving force balance and the uneven deformation of itself, which affects the service life due to the too uneven air intake and exhaust.

[0023] 2. Since the connecting ring is provided with a guiding and restricting spline ring, and the guiding and restricting spline ring forms a relative sliding structure with the corresponding guiding groove, when the annular airbag body drives the pressing disc to move, the guiding and restricting spline ring can cooperate with the corresponding guiding groove to form a guiding effect. At the same time, the guiding and restricting spline ring restricts the annular airbag body in other directions except for the lateral deformation. Furthermore, the accuracy of the lateral movement distance of the pressing disc driven by the annular airbag body after introducing a certain amount of air can be ensured, and at the same time, it plays a protective role for the outside of the annular airbag body.

[0024] 3. Since the limiting member is slidably connected to the annular bin, when the staff sleeved the pressing ring on the outer wall of the annular bin and fixed the annular bin and the fixed ring, the limiting member can be simultaneously squeezed into the corresponding limiting groove, thereby limiting and fixing the ventilation pipe, so that the annular airbag body and its parts are fixed, making the overall installation and disassembly more convenient and fast. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is the front view structural schematic diagram of the present invention;

[0026] Figure 2 is the front view sectional structural schematic diagram of the present invention;

[0027] Figure 3 is the present invention Figure 2 magnified structural schematic diagram at A;

[0028] Figure 4 is the present invention Figure 2 magnified structural schematic diagram at B;

[0029] Figure 5 is the front view structural schematic diagram of the annular bin of the present invention;

[0030] Figure 6 is the front view structural schematic diagram of the ventilation pipe of the present invention;

[0031] Figure 7 is the front view structural schematic diagram of the limiting member of the present invention.

[0032] In the figure: 1, fixed ring; 2, first mounting ring; 3, annular airbag body; 4, second mounting ring; 5, connecting ring; 6, rotating ring; 7, pressure plate; 8, flywheel; 9, output shaft; 10, transmission shaft; 11, input shaft; 12, elastic reset member; 13, guide groove; 14, guide limiting spline ring; 15, annular bin; 16, ventilation pipe; 17, intake pipe; 18, intake check valve; 19, exhaust pipe; 20, solenoid valve; 21, pressing ring; 22, screw; 23, nut; 24, limiting groove; 25, installation cavity; 26, limiting member; 27, spring body. Specific Embodiments

[0033] The technical solutions of this patent will be further described in detail below in conjunction with specific embodiments.

[0034] As Figures 1-7 shown, the present invention provides a technical solution:

[0035] Embodiment 1

[0036] An airbag push plate clutch mechanism applied to heavy equipment for oil drilling and production, including a fixed ring 1. One end of the fixed ring 1 is provided with a first mounting ring 2, and a annular airbag body 3 is installed at the end of the first mounting ring 2 away from the fixed ring 1. A second mounting ring 4 is installed at the end of the annular airbag body 3 away from the first mounting ring 2. A connecting ring 5 is installed at the end of the second mounting ring 4 away from the annular airbag body 3. A rotating ring 6 is installed at the end of the connecting ring 5 away from the second mounting ring 4. A pressure plate 7 is installed at the end of the rotating ring 6 away from the connecting ring 5, so that when the annular airbag body 3 deforms, it can drive the pressure plate 7 to move horizontally correspondingly, and when the pressure plate 7 rotates, the rotating part of the rotating ring 6 can rotate accordingly, while the connecting ring 5 does not rotate. When in use, the fixed ring 1 is fixed on the equipment;

[0037] A flywheel 8 is provided at the end of the pressure plate 7 away from the rotating ring 6, and an output shaft 9 is installed at the end of the flywheel 8 away from the pressure plate 7. When the annular airbag body 3 expands and drives the pressure plate 7 to move towards the flywheel 8, the pressure plate 7 can be in contact with the flywheel 8, so that the connection task is completed through friction between the pressure plate 7 and the flywheel 8, and when the pressure plate 7 rotates, it can drive the flywheel 8 and the output shaft 9 thereon to complete the rotation task. The end of the output shaft 9 away from the flywheel 8 is connected to the working equipment;

[0038] A transmission shaft 10 is installed at the middle position of one end of the pressure plate 7 away from the flywheel 8. An input shaft 11 is arranged inside the transmission shaft 10. An elastic resetting member 12 is connected between the input shaft 11 and the transmission shaft 10. The central axis of the transmission shaft 10 coincides with the central axis of the input shaft 11, and the transmission shaft 10 and the input shaft 11 are in sliding connection, so that when the input shaft 11 rotates, it can drive the transmission shaft 10 to rotate, and further drive the pressure plate 7 to drive the flywheel 8 to rotate. The transmission shaft 10 and the input shaft 11 can be connected by splines that can slide. One end of the input shaft 11 away from the transmission shaft 10 is connected to a driving device;

[0039] An annular chamber 15 is arranged at one end of the fixing ring 1 away from the first mounting ring 2. A plurality of air pipes 16 are uniformly installed through one end of the annular airbag body 3 close to the annular chamber 15, and the air pipes 16 penetrate through the first mounting ring 2 and the fixing ring 1 and extend into the interior of the annular chamber 15. When the annular airbag body 3 is inflated, air will first enter the interior of the annular chamber 15, and then enter the interior of the annular airbag body 3 through a plurality of air pipes 16. Similarly, when the air is discharged, it will be discharged through a plurality of air pipes 16 at the same time, so that the air intake and exhaust can be more uniform, and the expansion and contraction of the annular airbag body 3 can be more balanced;

[0040] An air intake mechanism for sending air into the annular chamber 15 is arranged on the annular chamber 15, and an exhaust mechanism for discharging the air inside the annular chamber 15 is arranged on the annular chamber 15. The air intake mechanism includes an air inlet pipe 17, and the air inlet pipe 17 is connected to the top of one end of the annular chamber 15 away from the fixing ring 1. An air intake check valve 18 is installed on the outer side of the air inlet pipe 17. The exhaust mechanism includes an exhaust pipe 19, and the exhaust pipe 19 is connected to the bottom of one end of the annular chamber 15 away from the fixing ring 1. A solenoid valve 20 is installed on the outer side of the annular chamber 15. The air inlet pipe 17 and the exhaust pipe 19 are both located at the position close to the middle of the annular chamber 15, so that the air can be basically uniform when entering and leaving the annular chamber 15. The air inlet pipe 17 is communicated with a gas supply device, and the gas supply device inflates the interior of the annular chamber 15 through the air inlet pipe 17. During this process, the air intake check valve 18 is pushed open, and the air further enters the interior of the annular airbag body 3 evenly through a plurality of air pipes 16. The exhaust pipe 19 is communicated with an exhaust device. When the annular airbag body 3 contracts and exhausts, it is discharged into the annular chamber 15 through a plurality of air pipes 16, and then the controller controls the solenoid valve 20 to open, and the air is discharged through the exhaust pipe 19.

[0041] Embodiment 2

[0042] Based on the above-mentioned Embodiment 1, two groups of guiding grooves 13 are provided at one end of the fixing ring 1 close to the annular airbag body 3. A guiding and restricting spline ring 14 is arranged inside the guiding groove 13, and one end of the guiding and restricting spline ring 14 away from the guiding groove 13 is fixedly connected to the connecting ring 5. The guiding and restricting spline ring 14 and the guiding groove 13 form a relative sliding structure, and the guiding and restricting spline ring 14 is in close fit with the annular airbag body 3. The guiding and restricting spline ring 14 can slide in the guiding groove 13, but cannot rotate in the guiding groove 13. When the annular airbag body 3 expands and contracts, the guiding and restricting spline ring 14 can slide correspondingly in the guiding groove 13, thereby realizing the guiding task. Further, the two groups of guiding and restricting spline rings 14 can cooperate with each other to restrict the annular airbag body 3 in other directions except for lateral expansion, and the annular airbag body 3 still remains in contact with the guiding and restricting spline ring 14 in its minimum contracted state. Thus, when a certain amount of air enters or exits the annular airbag body 3, the annular airbag body 3 will not be affected by expansion and contraction in other directions, making the moving distance of the pressure plate 7 more accurate.

[0043] Embodiment 3

[0044] Based on the above-mentioned Embodiments 1 and 2, a pressing ring 21 is arranged on the outer side of the annular bin 15. A connecting mechanism for fixing the fixing ring 1 and the annular bin 15 is arranged on the pressing ring 21. The connecting mechanism includes four groups of screw rods 22, and the four groups of screw rods 22 are uniformly penetrated through the edge of one end of the pressing ring 21, and the screw rods 22 penetrate through the annular bin 15 and the fixing ring 1. A nut 23 is sleeved on the outer side of one end of the screw rod 22 close to the fixing ring 1. The central axis of the nut 23 coincides with the central axis of the screw rod 22, and the nut 23 is threadedly connected to the screw rod 22, enabling the staff to fix the annular bin 15, the pressing ring 21 and the fixing ring 1 together through the nut 23 and the screw rod 22. Here, the number of the nut 23 and the screw rod 22 is not limited to four groups, and multiple groups can be used to complete the fixing task according to the actual situation;

[0045] A limiting groove 24 is formed on the outer side of the vent pipe 16. Installation cavities 25 are evenly formed inside the outer wall of the annular bin 15. A limiting mechanism for fixing the vent pipe 16 and the annular bin 15 is arranged inside the installation cavity 25. The limiting mechanism includes a limiting member 26. The limiting member 26 is arranged inside the installation cavity 25, and the limiting member 26 penetrates through the annular bin 15 and extends into the limiting groove 24. An elastic body 27 is connected between the limiting member 26 and the annular bin 15. The cross-sectional shape of the limiting member 26 is a cross, and the limiting member 26 is slidably connected to the annular bin 15. The top end of the limiting member 26 is semi-circular. When the staff sleeved the pressing ring 21 onto the annular bin 15, the pressing ring 21 can squeeze the spherical surfaces of multiple groups of limiting members 26, so that the limiting members 26 slide and insert into the corresponding limiting grooves 24, and then multiple groups of vent pipes 16 and the fixing ring 1 complete the fixing task at the same time. After the pressing ring 21, the annular bin 15 and the fixing ring 1 are fixed, the vent pipe 16 completes the fixing task accordingly, which can make the installation and disassembly more convenient and fast.

[0046] The working principle of the present invention: The device is powered by an external power supply. When the device is assembled, the vent pipe 16 is inserted into the corresponding hole on the annular bin 15. A sealing gasket for blocking the vent pipe 16 is arranged inside the annular bin 15 to block and keep the vent pipe 16 sealed. Then, the pressing ring 21 is sleeved on the outer side of the annular bin 15. The pressing ring 21 squeezes multiple groups of limiting members 26, so that the limiting members 26 are inserted into the corresponding limiting grooves 24 to limit and fix multiple groups of vent pipes 16. At this time, the guiding and restricting spline ring 14 is inserted into the corresponding guiding groove 13 and forms a relative sliding structure with the guiding groove 13. Then, the pressing ring 21, the annular bin 15 and the fixing ring 1 are fixed by the screw 22 and the nut 23 to complete the assembly, which is convenient and fast.

[0047] The air supply device connected to the air inlet pipe 17 and the solenoid valve 20 on the exhaust pipe 19 are controlled by a controller. When it is necessary to connect the pressure plate 7 and the flywheel 8, the air supply device fills the annular bin 15 with air through the air inlet pipe 17. The air uniformly enters the annular airbag main body 3 through multiple groups of vent pipes 16. The annular airbag main body 3 expands horizontally and drives the pressure plate 7 to move towards the flywheel 8 until it is closely attached to the flywheel 8, thereby completing the connection task. Then, the input shaft 11 drives the transmission shaft 10 and the pressure plate 7 to rotate, and the flywheel 8 drives the output shaft 9 and the working equipment on the output shaft 9 to start operating. When it is necessary to disconnect the pressure plate 7 from the flywheel 8, the solenoid valve 20 is opened. The air in the annular airbag main body 3 is uniformly discharged into the annular bin 15 through multiple groups of vent pipes 16 and then discharged through the exhaust pipe 19. The annular airbag main body 3 contracts horizontally, and the pressure plate 7 is disengaged from the flywheel 8, thereby disconnecting the connection.

[0048] The above describes in detail the preferred embodiments of this patent. However, this patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of this patent within the scope of knowledge possessed by those of ordinary skill in the art.

Claims

1. An airbag push-plate clutch mechanism for use in heavy oil drilling equipment, comprising a fixed ring (1), characterized in that: A first mounting ring (2) is provided at one end of the fixing ring (1), and an annular airbag body (3) is installed at one end of the first mounting ring (2) away from the fixing ring (1), a second mounting ring (4) is installed at one end of the annular airbag body (3) away from the first mounting ring (2), a connecting ring (5) is installed at one end of the second mounting ring (4) away from the annular airbag body (3), a rotating ring (6) is installed at one end of the connecting ring (5) away from the second mounting ring (4), and a pressure plate (7) is installed at one end of the rotating ring (6) away from the connecting ring (5); A flywheel (8) is arranged at one end of the pressure plate (7) away from the rotating ring (6), and an output shaft (9) is installed at one end of the flywheel (8) away from the pressure plate (7); A transmission shaft (10) is installed at a middle position of the pressure plate (7) away from one end of the flywheel (8), and an input shaft (11) is arranged inside the transmission shaft (10), and an elastic reset member (12) is connected between the input shaft (11) and the transmission shaft (10); An annular bin (15) is arranged at one end of the fixing ring (1) away from the first mounting ring (2), and a vent pipe (16) is evenly penetrated and installed at one end of the annular airbag body (3) close to the annular bin (15), and the vent pipe (16) penetrates the first mounting ring (2) and the fixing ring (1) and extends to the interior of the annular bin (15); The annular bin (15) is provided with an air intake mechanism for supplying air into the interior thereof, and the annular bin (15) is provided with an exhaust mechanism for exhausting the air inside thereof; A pressing ring (21) is arranged on the outer side of the annular bin (15), and a connecting mechanism for fixing the fixing ring (1) and the annular bin (15) is arranged on the pressing ring (21); A limiting groove (24) is provided on the outer side of the vent pipe (16), and mounting cavities (25) are evenly provided inside the outer wall of the annular bin (15). A limiting mechanism for fixing the vent pipe (16) and the annular bin (15) is provided inside the mounting cavity (25).

2. The airbag push-plate clutch mechanism used in heavy oil drilling equipment according to claim 1 is characterized in that: The central axis of the transmission shaft (10) coincides with the central axis of the input shaft (11), and the transmission shaft (10) and the input shaft (11) are in sliding connection.

3. The airbag push-plate clutch mechanism used in heavy oil drilling equipment according to claim 1 is characterized in that: Two groups of guide grooves (13) are formed at one end of the fixing ring (1) close to the annular airbag body (3), a guide limiting spline ring (14) is arranged inside the guide groove (13), and the end of the guide limiting spline ring (14) away from the guide groove (13) is fixedly connected to the connecting ring (5).

4. The airbag push-plate clutch mechanism used in heavy oil drilling equipment according to claim 3 is characterized in that: The guide limiting spline ring (14) and the guide groove (13) form a relative sliding structure, and the guide limiting spline ring (14) and the annular airbag body (3) are kept in close contact.

5. The airbag push-plate clutch mechanism used in heavy oil drilling equipment according to claim 1 is characterized in that: The air intake mechanism comprises an air intake pipe (17), the air intake pipe (17) is connected to the top of the annular bin (15) at one end away from the fixing ring (1), and an air intake check valve (18) is installed on the outer side of the air intake pipe (17).

6. The airbag push-plate clutch mechanism used in heavy oil drilling equipment according to claim 1 is characterized in that: The exhaust mechanism comprises an exhaust pipe (19), wherein the exhaust pipe (19) is connected to the bottom of the annular bin (15) at one end away from the fixing ring (1), and an electromagnetic valve (20) is installed on the outer side of the annular bin (15).

7. The airbag push-plate clutch mechanism used in heavy oil drilling equipment according to claim 1 is characterized in that: The connecting mechanism comprises four groups of screw rods (22), and the four groups of screw rods (22) are uniformly penetrated at the edge of one end of the pressing ring (21), and the screw rods (22) penetrate the annular bin (15) and the fixing ring (1), and a nut (23) is sleeved on the outer side of the screw rods (22) close to one end of the fixing ring (1).

8. The airbag push-plate clutch mechanism used in heavy oil drilling equipment according to claim 7, characterized in that: The central axis of the nut (23) coincides with the central axis of the screw rod (22), and the nut (23) and the screw rod (22) are threadedly connected.

9. The airbag push-plate clutch mechanism used in heavy oil drilling equipment according to claim 1, characterized in that: The limiting mechanism comprises a limiting member (26), the limiting member (26) is arranged inside the installation cavity (25), and the limiting member (26) passes through the annular bin (15) and extends to the inside of the limiting groove (24), and an elastic body (27) is connected between the limiting member (26) and the annular bin (15).

10. The airbag push-plate clutch mechanism used in heavy oil drilling equipment according to claim 9, characterized in that: The cross-sectional shape of the limiting member (26) is a "cross" shape, the limiting member (26) is slidably connected to the annular bin (15), and the top end of the limiting member (26) is semicircular.

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