Manual-automatic integrated driving device with locking function

Abstract

The invention discloses a manual-automatic integrated locking driving device which comprises a driving oil cylinder 1, a hydraulic lock 2, an emergency valve 3, a butt joint sleeve 4, a hook 5, a tension spring 6, a cover body 7, a cone 8, a locking nut 9, a handle threaded rod 10, a top core 11, a pin shaft 12, a proximity switch 13, a connector 14 and a pipeline 15, the driving oil cylinder 1 and the hydraulic lock 2 are welded into a whole, and the oil cylinder 1 is further connected with the emergency valve 3 through the connector 14 and the pipeline 1. The oil cylinder 1 is further connected with the cover body 7 through a screw, and the tail end of a piston rod 1-1 of the oil cylinder 7 is further connected with the butt joint sleeve 4 through a thread pair. The driving device can be automatically controlled through power, push-pull control can be achieved through a manual module, and meanwhile the function that push-out control can be only provided for a driven mechanism without a pull-back function can be achieved according to needs.

Description

Technical Field

[0001] The invention relates to the technical field of underwater production, and specifically designs a manual-automatic integrated driving device with locking. Background Art

[0002] The development of marine equipment is a key part of the country's support for the development of a strong marine nation, which is related to the country's marine economic development and national defense security. At present, there is a strong demand for underwater equipment in China, and various types of equipment continue to appear. There are many conventional devices that can achieve reciprocating motion, such as oil cylinders, air cylinders, and electric cylinder drives, but most of them cannot achieve both locking and manual emergency functions. In order to make up for this defect.

[0003] For subsea production equipment, the degree of automation is very important for improving production efficiency, but the reliability of the device and personal safety are also crucial. However, the power source of any driving device may be damaged or fail, so it is necessary to design a device that can be driven both automatically and manually. The present invention proposes a device that integrates manual and automatic, that is, a manual-automatic driving device with locking. Summary of the invention

[0004] The present invention proposes a manual-automatic integrated locking drive device, which is a drive control of a quick docking locking device mechanism, and its purpose is to drive a docking locking mechanism for a certain submarine oil production platform automation equipment to drive the reciprocating motion of some execution units.

[0005] The present invention is achieved through the following technical solutions:

[0006] A manual-automatic locking drive device comprises: a driving cylinder 1, a hydraulic lock 2, an emergency valve 3, a docking sleeve 4, a hook 5, a tension spring 6, a cover body 7, a cone 8, a locking nut 9, a handle threaded rod 10, a top core 11, a pin 12, a proximity switch 13, a joint 14 and a pipeline 15. The driving cylinder 1 is welded to the hydraulic lock 2 as a whole (or connected by screws), the cylinder 1 is also connected to the emergency valve 3 and the pipeline 1 through the joint 14, the cylinder 1 is also connected to the cover body 7 through screws, and the end of the piston rod 1-1 of the cylinder 7 is also connected to the docking sleeve 4 through a threaded pair.

[0007] Preferably, the docking sleeve 4 is also hingedly connected to the hook 5 via a pin 12, and the hook 5 is also connected to the tension spring 6 via a screw 17.

[0008] Preferably, there are two hooks 5, which are respectively mounted on two sets of axial holes of the docking sleeve 4 using pins 12 to form a symmetrical layout.

[0009] Preferably, the two sides of the two hooks 5 are connected by tension springs 6 using screws.

[0010] Preferably, the cover body 7 is also connected to the handle threaded rod 10 through a thread pair, and the cover body 7 is also fixed to the proximity switch 13 by a thread pair.

[0011] Preferably, the handle threaded rod 10 is also connected to the locking nut 9 through a thread pair, and the handle threaded rod 10 is also connected to the top core 11 through a thread pair.

[0012] Preferably, the lower end of the handle threaded rod 10 is also connected to the cone 8 through a thread pair.

[0013] Advantageous effects:

[0014] The technical solution of the present invention improves the safety of the driving device, increases the flexibility of the driving form of the driving device, and the multiple locking functions improve the reliability of the device: specifically, it includes the following aspects:

[0015] 1. By setting a manual driving function unit in the present invention, the driving device can still use full manual operation to realize the driving function of the driving device even when the power source is lost.

[0016] 2. The driving device of the present invention can use power automatic control, can also use a manual module to realize push-pull control, and can also, according to needs, only provide push control for the driven mechanism without a pull-back function.

[0017] 3. In addition to using a hydraulic lock to lock the driving oil cylinder, the driving device of the present invention can also increase the locking reliability through a mechanical locking function to prevent the failure of the hydraulic lock locking function caused by system leakage. Description of the drawings

[0018] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention.

[0019] Figure 2 It is a schematic diagram of the partial structure of an embodiment of the present invention.

[0020] Figure 3 It is a schematic diagram of the hydraulic principle in an embodiment of the present invention.

[0021] Figure 4 It is a schematic diagram of the installation positions of the hook and the spring in an embodiment of the present invention.

[0022] Figure 5 It is a schematic diagram of the relative positions of the components during the manual push-pull function in an embodiment of the present invention.

[0023] Figure 6 It is a schematic diagram of the relative positions of the relevant components in the only manual push function mode in an embodiment of the present invention.

[0024] Figure 7 This is a schematic diagram of the structure when the cone is about to exit the card slot in the embodiment of the present invention.

[0025] Figure 8 This is a schematic diagram of the structure for exiting the manual drive mode in the embodiment of the present invention.

[0026] Figure 9 This is a schematic diagram of the hook structure in the embodiment of the present invention.

[0027] Figure 10 This is a schematic diagram of the handle screw rod structure in the embodiment of the present invention.

[0028] Figure 11 This is a schematic diagram of the cover body structure in the embodiment of the present invention.

[0029] Figure 12 This is a schematic diagram of the top core structure in the embodiment of the present invention.

[0030] In the figure, each symbol represents: drive oil cylinder 1; hydraulic lock 2; emergency valve 3; docking sleeve 4; hook 5; tension spring 6; cover body 7; cone 8; lock nut 9; handle screw rod 10; top core 11; pin shaft 12; proximity switch 13; joint 14; pipeline 15; reversing valve 16; screw 17. Specific embodiments

[0031] The following will describe in detail the embodiments of the present invention with reference to the accompanying drawings: These embodiments are implemented on the premise of the technical solution of the present invention, and detailed implementation manners and specific operation processes are given, but the protection scope of the present invention is not limited to the following embodiments.

[0032] As Figure 1 shown in the overall structure diagram of the device, Figure 2 the partial structure (partial cross-sectional view) of the device, and Figure 3 the hydraulic schematic diagram of the device, the output end of the drive oil cylinder 1 is connected to the driven mechanism. The two chambers of the drive oil cylinder are respectively connected with a hydraulic lock 2 and an emergency valve 3. The control oil enters the two chambers of the oil cylinder from the A and B ports of the hydraulic lock to realize the normal telescopic drive of the oil cylinder piston rod. The hydraulic lock 3 plays an automatic locking function. By opening or closing the emergency valve 3, the two chambers of the drive oil cylinder 1 are connected or closed to realize or cancel the automatic locking function of the device, making preparations for the emergency part; see the appendix Figure 4 : The drive oil cylinder 1 is a double-acting piston rod oil cylinder. The lower piston rod is connected to the driven mechanism, and the upper piston rod 1-1 is connected to the docking sleeve 4. The docking sleeve 4 is connected to the two hooks 5 through a pin shaft. The two hooks 5 are also pulled by two tension springs 6. In this way, the two hooks 5 are close to each other in the free state. The hook 5 is designed with an upper inclined surface 51, a lower inclined surface 52, and a card slot 53 (see the appendix of the hook 5 Figure 9) The cover body 7 is connected to the connecting flange on the driving oil cylinder 1. The upper cover of the cover body 7 is designed with an internal threaded hole 70, and mounting threaded holes 71 are respectively provided on both sides of the cover body 7. See the appendix Figure 10 and the appendix Figure 11 . An external thread 103 is provided on the handle screw rod 10. The external thread 103 of the handle screw rod 10 forms a threaded pair connection with the internal threaded hole 70 on the upper cover of the cover body 7. A rotating handwheel 101 is equipped at the upper end of the handle screw rod 10, and the handle screw rod 10 can move up and down relative to the cover body 7; the cone 8 is fixedly connected to the lower end of the handle screw rod 10, and the locking nut 9 is installed on the handle screw rod 10 for relative locking between the handle screw rod 10 and the cover body 7; a threaded hole is provided in the inner cavity of the handle screw rod 10, an internal thread 102 is provided on this threaded hole, the outer circle is the external thread 103, the lower end is fixedly connected to the cone 8, and there is a rotating handwheel at the upper end; see the appendix Figure 12 . The main body of the top core 11 is an external thread 111, the lower end is a conical head 112, and there is a rotating handwheel 113 at the upper end; the external screw rod of the top core 11 forms a threaded pair with the internal threaded hole of the handle screw rod 10, that is, when the top core 11 is manually rotated, it can move relatively up and down along the threaded pair formed with the inner hole of the handle screw rod 10, that is, the conical head of the top core 11 can extend or retract from the inner hole of the handle screw rod 10.

[0033] I. Realization of the automatic locking and unlocking functions:

[0034] See Figure 3 the hydraulic schematic diagram. Two chambers of the driving oil cylinder 1 are respectively connected with a hydraulic lock 2 and an emergency valve 3. The control oil enters the two chambers of the oil cylinder from the hydraulic lock to realize the normal telescopic drive of the oil cylinder piston rod 1-1, and the hydraulic lock 3 plays the automatic locking function for the driving oil cylinder 1; when the emergency valve 3 is opened, the two chambers of the driving oil cylinder 1 will be connected through the joint 14, the pipeline 15 and the emergency valve 13. At this time, it is equivalent to shielding the locking function of the hydraulic lock 3, that is, the automatic locking function is cancelled.

[0035] II. Realization of the automatic drive function:

[0036] Combining Figure 1 and Figure 3 , initially, the emergency valve 3 is in the closed state. The oil source of the hydraulic system supplies oil to the driving oil cylinder 1 through the A and B oil ports of the hydraulic lock 2 via the reversing valve 16. The telescopic movement of the piston rod 1-1 of the driving oil cylinder 1 is realized by reversing the reversing valve 16, and then the automatic drive function of the device for the driven mechanism is realized.

[0037] III. Realization of the manual drive function:

[0038] 1) Manual push-pull function mode:

[0039] See the appendix Figure 5, at this time, the emergency valve 3 is in the open state, and no oil in the hydraulic system supplies oil to the driving oil cylinder through the A and B oil ports of the hydraulic lock 2. At this time, loosen the locking nut 9 and manually rotate the handle screw rod 10. The handle screw rod 10 and the threaded hole on the cover body 7 form a thread pair. Rotate the handle screw rod 10 clockwise, then the handle screw rod 10 will drive the top core 11 and the cone 8 to move downward synchronously. When the conical surface of the cone 8 contacts the upper inclined surfaces 51 of the two hooks 5, the two hooks 5 will rotate outward around the pin shaft 12 under the thrust exerted by the conical surface of the cone 8. At this time, the hooks 5 are opened. As the screw rod drives the top core 11 and the cone 8 to continue moving downward synchronously, when the cone 8 moves to the position of the hook 5 slot 53, the upper inclined surface 51 of the hook 5 is disengaged from the conical surface of the cone 8, and the hook 5 is pulled back toward the middle under the pulling force of the tension spring 6. The two hooks 5 clamp the cone 8 in the hook 5 slot 53 under the action of the spring 6 (as Figure 5 shown), at this time, the manual hooking mode is completed, that is, the oil cylinder piston rod 1-1 is fixedly connected to the handle screw rod 10. Thus, by rotating the handle screw rod 10 forward and backward, the oil cylinder piston rod can follow the handle screw rod 10 to perform up and down movement actions, that is, the manual driving function is realized.

[0040] 2) Only manual push function mode:

[0041] See Figure 5 , Figure 6 , Figure 7 , Figure 9 and Figure 10 , in the manual push-pull function state, rotate the top core 11 relative to the handle screw rod 10 so that the lower conical head of the top core extends out of the inner hole of the handle screw rod 10. At this time, the lower conical head of the top core 11 will contact the lower inclined surface 52 of the hook 5. The two hooks 5 will rotate outward around the pin shaft 12 under the thrust exerted by the lower conical head of the top core 11. When the opening of the hook 5 is large enough for the cone 8 to withdraw, in this state, rotate the handle screw rod 10 forward, so that the handle screw rod 10 drives the top core 11 to continue moving downward, then the end of the conical head of the top core 11 will abut against the upper end of the driving oil cylinder piston rod 1-1. Continue to rotate the handle screw rod 10 forward, that is, the pushing function of the oil cylinder piston rod 1-1 is realized (similarly, rotating the top core 11 backward will retract it into the handle screw rod 10, that is, the manual driving mode is exited); at this time, if the handle screw rod 10 is rotated backward manually, the screw rod 10 will drive the cone 8 to move upward until the cone 8 completely withdraws from the position of the hook 5 slot 53 (see Figure 7 Schematic diagram of the cone 8 about to withdraw from the slot 53), at this time, since the top core 11 has been pushing the hook 5 open, the piston rod 1-1 will not move upward with the screw rod 10, that is, the only manual push function of the piston rod is realized.

[0042] 3) Release the manual driving mode:

[0043] See Figure 7 and Figure 8 When in the manual push-pull function state, rotate the top core 11 relative to the handle threaded rod 10 so that the conical head at the lower end of the top core extends from the lower end of the handle threaded rod 10. At this time, the conical head at the lower end of the top core 11 will contact the lower inclined surface 52 of the hook 5. Due to the thrust exerted by the conical head at the lower end of the top core 11, the two hooks 5 will rotate outward around the pin shaft 12. When the opening of the hook 5 is large enough for the cone 8 to exit, manually rotate the handle threaded rod 10 in the reverse direction so that the handle threaded rod 10 drives the cone 8 to move upward until the cone 8 completely exits from the position of the card slot 53 of the hook 5. Continue to rotate and retract the handle threaded rod 10 to the top (the cone 8 contacts the cover body), and use the lock nut 9 to lock it. Similarly, rotate the top core 11 in the reverse direction to retract it into the handle threaded rod 10, that is, the manual drive mode is exited.

[0044] IV. Manual mechanical locking:

[0045] After entering the state of "1) Manual push-pull function mode" in the third section, if the lock nut 9 is tightened to lock the handle threaded rod 10, then since the cone 8 is stuck in the card slot 53 of the claw 5 at this time, the piston rod 1-1 is also locked, and the manual mechanical locking function of the device can be realized.

[0046] V. Position feedback:

[0047] This device also realizes the detection and feedback of the state of the device by setting two proximity switches 13 (installed on the cover body), which can further improve the safety and reliability of the device when used underwater.

[0048] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A manual-automatic belt locking drive device, characterized in that: include: A driving oil cylinder (1), a hydraulic lock (2), an emergency valve (3), a butt joint (4), a hook (5), a tension spring (6), a cover (7), a cone (8), a locking nut (9), a handle threaded rod (10), a top core (11), a pin shaft (12), a proximity switch (13), a joint (14) and a pipeline (15). The driving oil cylinder (1) and the hydraulic lock (2) are welded together. The oil cylinder (1) is also connected to the emergency valve (3) and the pipeline (1) through the joint (14). The oil cylinder (1) is also connected to the cover (7) through screws. The end of the piston rod (1-1) of the oil cylinder (7) is also connected to the butt joint (4) through a threaded pair.

2. The manual-automatic belt locking drive device according to claim 1, characterized in that: The butt sleeve (4) is also hingedly connected to the hook (5) via a pin (12), and the hook (5) is also connected to the tension spring (6) via a screw (17).

3. The manual-automatic belt locking drive device according to claim 1, characterized in that: There are two hooks (5), which are respectively mounted on two groups of shaft holes of the docking sleeve (4) using pins (12) to form a symmetrical layout.

4. The manual-automatic belt locking drive device according to claim 1, characterized in that: The two side surfaces of the two hooks (5) are connected by tension springs (6) using screws.

5. The manual-automatic belt locking drive device according to claim 1, characterized in that: The cover body (7) is also connected to the handle threaded rod (10) through a threaded pair, and the cover body (7) is also fixed to the proximity switch (13) through a threaded pair.

6. The manual-automatic belt locking drive device according to claim 1, characterized in that: The handle threaded rod (10) is also connected to the locking nut (9) via a threaded pair, and the handle threaded rod (10) is also connected to the top core (11) via a threaded pair.

7. The manual-automatic belt locking drive device according to claim 1, characterized in that: The lower end of the handle threaded rod (10) is also connected to the cone (8) by a threaded pair.

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