Two-stage unplugging structure with redundant electric winch and working method of two-stage unplugging structure
By designing a secondary de-insertion structure with redundant electric hoist, the problems of rocket de-insertion structure in the prior art are solved in the static deformation, complexity and gunpowder use, and the reliability of pull rope recycling and the success rate of passive plug fall off are achieved.
Patent Information
- Application Number
- CN202411963916.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-28
- Publication Date
- 2025-03-07
AI Technical Summary
The existing secondary de-insertion structure is prone to change the axial direction of the plug due to static deformation during rocket filling, increasing the risk of mechanical de-insertion failure; the automatic separation de-insertion structure is complex and has high reliability of parts, which may affect the rocket launch mission in case of failure; the cold separation de-insertion structure uses gunpowder to increase the system complexity and risk, and the reliability is reduced in extreme environments, and there is no redundant unlocking structure, so the passive falloff and recovery of the plug cannot be achieved after damage.
A secondary deplugging structure with redundant electric hoist is designed. The electric hoist ensures the reliability of the pull rope during recycling operation, and a redundant electric hoist is set up. When one electric hoist fails, the other electric hoist can passively fall off and/or recycle the plug, thereby improving the success rate of deplugging.
Through the design of redundant electric hoist, the reliability and removal success rate of pull rope recycling operations are improved, ensuring reliable passive falloff and recycling of the plug, reducing the risk of rocket launch missions.
Smart Images
Figure CN119568935A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of aerospace technology, and in particular to a secondary plug-in / plug-out structure and a working method with a redundant electric winch. Background Art
[0002] The socket of the second-stage unplugging structure is on the second-stage rocket. After the plug of the second-stage unplugging structure is connected with the socket, the electrical circuit can be connected. When separating, the plug and the socket are usually separated quickly and safely through a mechanical separation unplugging structure, an automatic separation unplugging structure or a cold separation unplugging structure to ensure that the second-stage rocket can continue its flight mission smoothly.
[0003] However, the existing mechanical separation plug-in and unplug-in structures usually use ropes or hooks to mechanically pull and separate. The disadvantage is that during the process of rocket filling, if the rocket undergoes static deformation, causing the axial direction of the plug to change, the angle between the mechanical pull-out axial direction and the axial direction of the plug will be offset greater than the allowable range, increasing the risk of mechanical unplugging failure. The existing automatic separation plug-in and unplug-in structures generally rely on actuating devices such as electromagnets to drive the plug out. This type of structure is relatively complex and has high reliability requirements for components. Once a part fails, such as electromagnet failure, it may cause the plug-in and unplug to fail to separate normally, affecting the smooth progress of the rocket launch mission. The existing cold separation plug-in and unplug-in structures usually use actuating devices such as gunpowder to generate thrust to separate the primary and secondary rocket bodies. The use of gunpowder actuating devices will increase the complexity and risk of the system, and the performance of gunpowder is greatly affected by environmental factors. Under extreme environmental conditions such as low temperature and high temperature, the reliability of gunpowder may be reduced, thereby affecting the normal operation of the plug-in and unplug-in structure.
[0004] In addition, the existing mechanical separation and unplugging structure, automatic separation and unplugging structure or cold separation and unplugging structure usually has no redundant unlocking structure. When the unlocking structure is damaged, the passive disengagement and / or recovery of the plug cannot be achieved.
[0005] Therefore, it is necessary to provide a new two-stage unplugging structure and working method with redundant electric winches to solve the above problems. Summary of the invention
[0006] The purpose of the present application is to provide a two-level plug-out and unplugging structure and working method with a redundant electric winch, which can ensure the reliability of the pulling rope during the recovery operation through the electric winch, and has a redundant electric winch. When one electric winch fails, the other electric winch can still achieve passive plug-out and / or recovery, thereby improving the success rate of plug-out.
[0007] To achieve the above-mentioned objectives, the present application provides a two-level plug-in / disconnection structure with a redundant electric winch, comprising: a mounting bracket, at least two electric winches, at least one eyebolt, a plug and a socket; wherein, at least two electric winches are arranged on the mounting bracket; at least one eyebolt is arranged on the mounting bracket, and at least one eyebolt is located above the at least two electric winches; one electric winch corresponds to one pulling rope, one end of each pulling rope is connected to the corresponding electric winch, and the other end of each pulling rope passes through the same eyebolt of at least one eyebolt and is connected to the plug; the plug and the socket are detachably connected.
[0008] As above, it also includes: at least two first guide wheels; at least two first guide wheels are arranged on the mounting bracket and are located below at least one eye bolt; one pulling rope corresponds to one first guide wheel; the other end of each pulling rope passes through the corresponding first guide wheel, and then passes through the same eye bolt in at least one eye bolt, and is connected to the plug.
[0009] As above, it also includes; at least two second guide wheels; one second guide wheel corresponds to one electric winch, and each second guide wheel is arranged on one side of the base of the corresponding electric winch; the other end of the pulling rope corresponding to each electric winch passes through the corresponding second guide wheel, the first guide wheel and the same lifting bolt of at least one lifting bolt in sequence, and is connected to the plug.
[0010] As above, the mounting bracket at least includes: a guide bracket and an equipment bracket; wherein the guide bracket includes: a bracket connecting plate, a first guide vertical beam, a first guide horizontal beam, a second guide vertical beam and a second guide horizontal beam; the bracket connecting plate is arranged at the installation position; the first guide vertical beam and the bracket connecting plate are detachably connected; the upper end of the first guide vertical beam is connected to one end of the first guide horizontal beam, and there is a first connection angle between the first guide vertical beam and the second guide horizontal beam; at least one eye bolt is arranged on the first guide horizontal beam, and is close to the other end of the first guide horizontal beam; the upper end of the second guide vertical beam is connected to the first guide horizontal beam, and the second guide vertical beam There is a second connection angle between the first guide beam and the first guide beam; the second guide vertical beam is located between the first guide vertical beam and at least one eye bolt; one end of the second guide beam is connected to the lower end of the second guide vertical beam, and there is a third connection angle between the second guide beam and the second guide vertical beam; at least two first guide wheels are arranged on the second guide beam; the equipment bracket includes: an equipment mounting beam and multiple equipment mounting seats; the equipment mounting beam is arranged at the installation position; multiple equipment mounting seats are all arranged at the lower end of the equipment mounting beam; one equipment mounting seat corresponds to at least one electric winch, and the lower end of the base of the electric winch is connected to the equipment mounting seat.
[0011] As mentioned above, a plurality of bracket mounting holes are arranged on the bracket connecting plate. During installation, the first guide vertical beam is connected to a group of bracket mounting holes among the plurality of bracket mounting holes.
[0012] As above, wherein at least one lifting ring connection hole is provided on the first guide beam, and at least one lifting ring connection hole is close to the other end of the first guide beam, and the lifting ring bolt is connected to the lifting ring connection hole.
[0013] As above, wherein the lifting ring connecting hole is a strip hole, and the length direction of the strip hole is parallel to the length direction of the first guide beam.
[0014] As mentioned above, there are two equipment mounting seats. After the mounting bracket is installed, one equipment mounting seat is located on one side of the second guide beam, and the other equipment mounting seat is located on the other side of the second guide beam; there are two electric winches, one electric winch is arranged on one equipment mounting seat, and the other electric winch is arranged on the other equipment mounting seat.
[0015] As above, one electric winch is used as the main winch, and the corresponding length of the pulling rope is: the length of the pulling rope = theoretical design length + slack + connection length; the other electric winch is used as the backup winch, and the corresponding length of the pulling rope is: the length of the pulling rope = theoretical design length + slack + connection length + backup length.
[0016] The present application also provides a working method, which is applied to the above-mentioned two-stage plug-in and unplugging structure with redundant electric winches, and the working method includes the following steps: S1: when the rocket is in a horizontal state, the socket is installed on the rocket body, the mounting bracket is installed on the erection frame, and the electric winch arranged on the mounting bracket is connected to one end of the pulling rope, and the other end of the pulling rope is connected to the plug after passing through the eye bolt, and the pulling rope is in a line-release state; the rocket body is hoisted onto the erection frame, and the plug and the socket are docked. After the docking is completed, the parameters of the pulling rope are checked, and after the verification is completed, S2 is executed; S2: the rocket is erected in place, the rocket lands on the launch pad, the process operation is completed, and the erection frame is erected. After falling back to the preset pre-arrival angle, the socket and the plug complete automatic electrical disconnection, and the electric winch receives the automatic electrical disconnection signal. If the automatic electrical disconnection signal indicates that the automatic electrical disconnection is successful, the electric winch runs, drives the pulling rope to recycle the plug, and sends a recovery signal; if the automatic electrical disconnection signal indicates that the automatic electrical disconnection fails, the electric winch runs, drives the pulling rope to make the plug passively fall off, recycles the plug, and sends a recovery signal; S3: If the recovery signal is successful, the plug-out is completed, and the erecting frame returns to the level; if the recovery signal is a failure, the erecting frame is controlled to move, and the displacement of the erecting frame drives the electric winch to move, thereby driving the pulling rope to make the plug passively fall off, recycles the plug, and the erecting frame returns to the level.
[0017] The beneficial effects achieved by this application are as follows:
[0018] (1) The two-stage plug-out structure and working method with redundant electric winches of the present application can ensure the reliability of the pulling rope during the recovery operation through the electric winches, and has redundant electric winches. When one electric winch fails, the other electric winch can still achieve passive plug-out and / or recovery, thereby improving the success rate of plug-out.
[0019] (2) The secondary disconnection and insertion structure with redundant electric winches of the present application can adjust the angle of the pulling rope through the eye bolt so that the angle of the pulling rope is within the allowable range, thereby increasing the success rate of mechanical disconnection.
[0020] (3) The secondary disconnection and insertion structure with redundant electric winches of the present application can adjust the angle of the pulling rope through the eye bolts and multiple guide wheels, further making the angle of the pulling rope within the allowable range, thereby increasing the success rate of mechanical disconnection. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present application. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.
[0022] Figure 1 It is a structural schematic diagram of an embodiment of a two-stage plug-in / plug-out structure with a redundant electric winch;
[0023] Figure 2 A schematic diagram of the structure of an embodiment of a plug;
[0024] Figure 3 This is a schematic structural diagram of an embodiment of the first guide wheel. DETAILED DESCRIPTION
[0025] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.
[0026] like Figure 1-3As shown, the present application provides a secondary plug-in / disconnection structure with redundant electric winches, comprising: a mounting bracket 1, at least two electric winches 2, at least one eyebolt 3, a plug 4 and a socket 5. Among them, at least two electric winches 2 are arranged on the mounting bracket 1; at least one eyebolt 3 is arranged on the mounting bracket 1, and at least one eyebolt 3 is located above the at least two electric winches 2; one electric winch 2 corresponds to one pulling rope 6, one end of each pulling rope 6 is connected to the corresponding electric winch 2, and the other end of each pulling rope 6 passes through the same eyebolt 3 of at least one eyebolt 3 and is connected to the plug 4; the plug 4 and the socket 5 are detachably connected.
[0027] Specifically, the secondary plug-in / out structure with redundant electric winches of the present application can ensure the reliability of the pulling rope 6 during the recovery operation through the electric winch 2, thereby improving the success rate of plug-in / out. The secondary plug-in / out structure with redundant electric winches of the present application is provided with multiple electric winches 2, and the multiple electric winches 2 are mutually redundant structures. As long as one electric winch 2 operates normally, the plug-in / out function can be realized, thereby improving the reliability of plug-in / out. The secondary plug-in / out structure with redundant electric winches of the present application can adjust the angle of the pulling rope 6 through the eye bolt 3, so that the angle of the pulling rope 6 is within the allowable range, thereby increasing the success rate of mechanical plug-in / out.
[0028] Among them, the specific value of the allowable range is set according to the actual situation. The present application preferably has the following conditions: if the angle of the pulling rope 6 is not greater than 5°, it is within the allowable range; if the angle of the pulling rope 6 is greater than or equal to 5°, it is outside the allowable range.
[0029] Furthermore, the mounting bracket 1 is disposed on the erecting frame (i.e., the mounting position), but is not limited to being disposed on the erecting frame, and can also be disposed on other positions of the rocket body where the plug 4 and the socket 5 need to be detached, recovered, and protected. The present application is preferably: after the erecting frame is assembled, the secondary disconnection structure with a redundant electric winch is installed on the erecting frame. After installation, there is a safe distance between the secondary disconnection structure with a redundant electric winch and the rocket body, which can improve safety when the rocket is hoisted. The specific value of the safety distance is set according to actual conditions.
[0030] Further, such as Figure 2 As shown, a plug connector 41 is provided on the plug 4 , and the pulling rope 6 is connected to the plug connector 41 .
[0031] Furthermore, the specific number of the eyebolts 3 is set according to actual conditions, and the preferred number in this application is one.
[0032] Further, such as Figure 1 and Figure 3As shown, the secondary plug-in / out structure with redundant electric winch also includes: at least two first guide wheels 7; at least two first guide wheels 7 are arranged on the mounting bracket 1 and are located below at least one eye bolt 3; one pulling rope 6 corresponds to one first guide wheel 7; the other end of each pulling rope 6 passes through the corresponding first guide wheel 7, and then passes through the same eye bolt 3 in at least one eye bolt 3, and is connected to the plug 4.
[0033] Specifically, the angle of the pulling rope 6 can be adjusted by the first guide wheel 7 and the eye bolt 3 so that the angle of the pulling rope 6 is within the allowable range, thereby further increasing the success rate of the mechanical removal.
[0034] Furthermore, the first guide wheel 7 adopts a winch line-in guide wheel structure, and the pulling rope 6 passes through the middle of the two wheels of the winch line-in guide wheel structure and is routed around the wheels, which can ensure that the pulling rope 6 does not jump when it is relaxed.
[0035] Furthermore, the secondary plug-in / out structure with redundant electric winches also includes: at least two second guide wheels 8; one electric winch 2 corresponds to one second guide wheel 8, and each second guide wheel 8 is arranged on one side of the base of the corresponding electric winch 2; the other end of the pulling rope 6 corresponding to each electric winch 2 passes through the corresponding second guide wheel 8, the first guide wheel 7 and the same eye bolt 3 of at least one eye bolt 3 in sequence, and is connected to the plug 4.
[0036] Specifically, the angle of the pulling rope 6 can be adjusted by the second guide wheel 8, the first guide wheel 7 and the eye bolt 3 so that the angle of the pulling rope 6 is within the allowable range, thereby further increasing the success rate of the mechanical removal.
[0037] Furthermore, the second guide wheel 8 adopts a winch line-in guide wheel structure, and the pulling rope 6 passes through the middle of the two wheels of the winch line-in guide wheel structure and runs around the wheels, which can ensure that the pulling rope 6 does not jump when it is relaxed.
[0038] Furthermore, the installation bracket 1 at least includes: a guide bracket 11 and an equipment bracket 12. The guide bracket 11 includes: a bracket connecting plate 111, a first guide vertical beam 112, a first guide horizontal beam 113, a second guide vertical beam 114 and a second guide horizontal beam 115. The bracket connecting plate 111 is arranged on the installation position (for example: the erecting frame); the first guide vertical beam 112 is detachably connected to the bracket connecting plate 111; the upper end of the first guide vertical beam 112 is connected to one end of the first guide crossbeam 113, and the first guide vertical beam 112 and the second guide crossbeam 113 have a first connection angle; at least one lifting eye bolt 3 is arranged on the first guide crossbeam 113 and is close to the other end of the first guide crossbeam 113; the upper end of the second guide vertical beam 114 is connected to the first guide crossbeam 113, and the second guide vertical beam 114 and the first guide crossbeam 113 have a second connection angle; the second guide vertical beam 114 is located between the first guide vertical beam 112 and at least one lifting eye bolt 3; one end of the second guide crossbeam 115 is connected to the lower end of the second guide vertical beam 114, and the second guide crossbeam 115 and the second guide vertical beam 114 have a third connection angle; at least two first guide wheels 7 are arranged on the second guide crossbeam 115. The equipment bracket 12 includes: an equipment installation beam 121 and multiple equipment installation seats 122; the equipment installation beam 121 is arranged on an installation position (for example: a vertical frame); multiple equipment installation seats 122 are all arranged at the lower end of the equipment installation beam 121; one equipment installation seat 122 corresponds to at least one electric winch 2, and the lower end of the base of the electric winch 2 is connected to the equipment installation seat 122.
[0039] Specifically, the mounting bracket 1 is an integrated structure or a separate structure. The specific values of the first connection angle, the second connection angle and the third connection angle are set according to actual conditions, and the preferred value in this application is: 90°.
[0040] Furthermore, the guide bracket 11 also includes: a support beam 116, one end of the support beam 116 is connected to the lower end of the first guide vertical beam 112, the other end of the support beam 116 is connected to the first guide cross beam 113, and the connection position of the support beam 116 and the first guide cross beam 113 is located between the first guide vertical beam 112 and the second guide vertical beam 114.
[0041] Specifically, the support beam 116 is used to improve the installation stability of the guide bracket 11 .
[0042] Furthermore, a plurality of bracket installation holes are provided on the bracket connecting plate 111 . During installation, the first guide vertical beam 112 is connected to a group of bracket installation holes among the plurality of bracket installation holes.
[0043] Specifically, the specific number of groups of bracket mounting holes is set according to actual conditions. During installation, the first guide vertical beam 112 is installed with bracket mounting holes of different groups to achieve the purpose of adjusting the position of the guide bracket 11.
[0044] Furthermore, by installing the first guide vertical beam 112 with different groups of bracket mounting holes, the adjustable position range is: [-50mm along the width direction of the bracket connecting plate, +50mm along the width direction of the bracket connecting plate], but not limited to [-50mm along the width direction of the bracket connecting plate, +50mm along the width direction of the bracket connecting plate]. The present application is preferably: [-50mm along the width direction of the bracket connecting plate, +50mm along the width direction of the bracket connecting plate].
[0045] Furthermore, at least one lifting ring connection hole 1131 is provided on the first guide beam 113 , and at least one lifting ring connection hole 1131 is close to the other end of the first guide beam 113 , and the lifting eye bolt 3 is connected to the lifting ring connection hole 1131 .
[0046] Specifically, the specific number of the eyelet connection holes 1131 is set according to actual conditions. When there are multiple eyelet connection holes 1131, the angle of the pulling rope 6 can be adjusted by adjusting the connection position between the eyebolt 3 and the eyelet connection hole 1131.
[0047] Furthermore, the specific shape of the ring connection hole 1131 is set according to actual conditions, and the present application preferably uses a strip hole, but is not limited to a strip hole, and can also be a hole of other shapes. The length direction of the strip hole is parallel to the length direction of the first guide beam 113.
[0048] Further, as an embodiment, there is one strip-shaped hole and one eye bolt 3, and the angle of the pulling rope 6 can be adjusted by adjusting the connection position of the eye bolt 3 in the strip-shaped hole.
[0049] Furthermore, the specific size of the strip hole is set according to actual conditions, and the preferred embodiment of the present application is: the length of the strip hole is: 100 mm.
[0050] Further, the specific number of the equipment mounting seats 122 is set according to the actual situation. The present application preferably has two equipment mounting seats 122. After the mounting bracket 1 is installed, one equipment mounting seat 122 is located on one side of the second guide beam 115, and the other equipment mounting seat 122 is located on the other side of the second guide beam 115. The specific number of the electric winches 2 is set according to the actual situation. The present application preferably has two electric winches 2. One electric winch 2 is set on one equipment mounting seat 122, and the other electric winch 2 is set on the other equipment mounting seat 122.
[0051] Specifically, one equipment mounting seat 122 may be equipped with one electric winch 2 or multiple electric winches 2 may be installed. The present application preferably installs one electric winch 2 on one equipment mounting seat 122 .
[0052] Furthermore, the pulling rope 6 is a steel wire rope, but is not limited to a steel wire rope. The present application preferably uses a steel wire rope, which can ensure that the breaking force is much greater than the pulling force.
[0053] Furthermore, the lengths of the plurality of pulling ropes 6 are equal or unequal.
[0054] Specifically, the specific length of each pulling rope 6 is set according to actual conditions.
[0055] When there are two pulling ropes 6, the present application preferably adopts: one electric hoist 2 as the main hoist, and the corresponding length of the pulling rope 6 is: the length of the pulling rope = the theoretical design length + the slack + the connection length. The other electric hoist 2 as the backup hoist, and the corresponding length of the pulling rope 6 is: the length of the pulling rope = the theoretical design length + the slack + the connection length + the backup length.
[0056] Specifically, as an embodiment, in the initial state (the arrow body is erected to 90 degrees), the theoretical design length of the pulling rope 6 is the distance from the socket 5 to the center of the eye screw 3 when the erection frame is 90 degrees, and the slack is the length of the pulling rope 4 connected to the plug 4 from the eye screw 3. The connection length is the length of the connection position between the pulling rope 6 and the electric winch 2 and the plug 4. The backup length is a preset margin value to ensure that the backup winch does not exert a pulling force on the plug 4 after the main winch is in place. The preferred embodiment of this application is: the backup length is 50mm.
[0057] The specific values of the theoretical design length, the specific values of the slack, the specific values of the connection length and the specific values of the backup length are set according to the actual situation. For example: the theoretical design length is 520mm, the slack is 662mm, and the total is 1182mm. The length of the pulling rope 4 from the eye screw 3 to the main winch (for example: the center of the winch guide rope wheel) is 640mm, that is, the length of the pulling rope 4 extended from the main winch is 1182+640=1822mm; the length of the pulling rope 4 from the eye screw 3 to the backup winch (for example: the center of the winch guide rope wheel) is 650mm. In order to ensure that after the main winch is in place, the backup winch does not have a pulling force on the plug 4, the backup length is increased by 50mm, that is, the length of the pulling rope 4 extended from the backup winch is 1182+650+50=1882mm.
[0058] Furthermore, the pulling rope 6 is connected to the plug 4 through a wire rope clamp, but is not limited to being connected to the plug 4 through a wire rope clamp. The present application preferably connects to the plug 4 through a wire rope clamp.
[0059] Furthermore, the electric winch 2 at least includes: a motor as a power source, a coupling, a reducer, a drum, a torque limiter, a manual one-way ratchet mechanism, a frame, a base, a first bearing seat, a second bearing seat and a third bearing seat. Among them, the input shaft of the reducer is connected to the motor through a coupling to reduce the speed of the motor; the output shaft of the reducer is connected to an axis of the drum to drive the drum to rotate; the drum is connected to one end of the pulling rope 6 to retract and release the pulling rope 6; the torque limiter is installed in the transmission link between the reducer and the drum, and when the torque is greater than the preset torque threshold, it is used to limit the torque transmission, thereby ensuring that the drum is not overloaded; the torque limiter is also used to output a signal to shut down the motor and the reducer; the ratchet in the manual one-way ratchet mechanism is connected to the other axis of the drum, and the pawl in the manual one-way ratchet mechanism is connected to the frame arranged on the base, and the ratchet is prevented from reversing through the pawl. , thereby preventing the reel from reversing; the first bearing seat is arranged on the base, and the first bearing seat is located between the reducer and the torque limiter, the output shaft of the reduction shaft is located on the first bearing seat, and the output shaft of the reduction shaft is supported by the first bearing seat; the second bearing seat is arranged on the base, and the second bearing seat is located between the torque limiter and the reel, one shaft of the reel is located on the second bearing seat, and one shaft of the reel is supported by the second bearing seat; the third bearing seat is arranged on the base, and the third bearing seat is located between the reel and the manual one-way ratchet mechanism, the other shaft of the reel is located on the third bearing seat, and the other shaft of the reel is supported by the third bearing seat; the lower end of the base is connected to the upper end of the mounting bracket 1.
[0060] Furthermore, the electric winch 2 also includes: a tensioning cycloid device, which is arranged on the base and connected to the drum. When the tensioning cycloid device detects a change in the tension of the pulling rope 6, the tensioning cycloid device adjusts the position of the drum to change the tension of the pulling rope 6.
[0061] Specifically, as an embodiment, a tensioning cycloid device having a connecting rod mechanism with an adjusting screw is used, one end of the connecting rod in the connecting rod mechanism is connected to the bracket of the tensioning cycloid device, and the other end of the connecting rod is connected to the side plate of the reel. When the cycloid device detects a change in the tension of the pull rope 6, the connecting rod mechanism is driven to fine-tune the position of the reel, thereby changing the tension of the pull rope 6.
[0062] As another embodiment, a tensioning cycloid device with a pulley group is used, which is connected by the pulley group. After the pulling rope 6 is led out from the drum, it first passes around the pulley in the pulley group. The tension of the pulling rope 6 is adjusted by the displacement change of the pulley. The movement of the pulley can indirectly change the tightness of the pulling rope 6 on the drum.
[0063] Furthermore, the electric winch 2 also includes: a screw slide rail, which is arranged on the base, and the drum is connected to one end of the pulling rope 6. After the other end of the pulling rope 6 is connected to the screw slide rail, it passes through the second guide wheel 8, the first guide wheel 7 and the eye bolt 3 in sequence, and is connected to the plug 4.
[0064] Specifically, the lead screw slide rail and the second guide wheel 8 ensure that the pulling rope 6 is arranged when the electric winch 2 is working, so that the pulling rope 6 will not be tangled or squeezed, and it is safe and reliable.
[0065] Furthermore, the electric winch 2 also includes: an outer shell, which is connected to the upper end of the base. After the connection, the motor, coupling, reducer, drum, torque limiter, manual one-way ratchet mechanism, frame, first bearing seat, second bearing seat, third bearing seat, tensioning cycloid device and screw slide rail are all located in the outer shell.
[0066] Furthermore, the motor is an explosion-proof motor, but is not limited to explosion-proof motors. The present application preferably adopts an explosion-proof motor as a power source, has the advantages of smooth and free movement, no impact or shaking, and has a reliable locking function, and can maintain reliable operation.
[0067] Specifically, the electric winch 2 has a brake function. When the winch motor 2 fails, the drum can be self-locked to ensure that it will not reverse and release the redundant pulling rope 6.
[0068] Furthermore, the electric winch 2 is also equipped with two control switches, one control switch is a remote control switch for realizing system control; the other control switch is installed on the structure of the electric winch and is used for field adjustment of the slack amount. Through the two control switches, the drum rotation can be stopped at any time.
[0069] The present application also provides a working method, which is applied to the above-mentioned secondary plug-in / plug-out structure with redundant electric winches, and the working method comprises the following steps:
[0070] S1: When the rocket is in a horizontal state, install the socket on the rocket body, install the mounting bracket on the erection frame, connect the electric winch on the mounting bracket to one end of the pulling rope, and connect the other end of the pulling rope to the plug after passing through the eye bolt, and the pulling rope is in a line-release state; hoist the rocket body onto the erection frame, dock the plug with the socket, and after docking, check the parameters of the pulling rope. After the verification is completed, execute S2.
[0071] Specifically, as an embodiment, in order to ensure reliable removal, two electric winches are used to work simultaneously, and the two electric winches are symmetrically arranged to tighten the pulling rope. When dragging and dropping the pulling rope, after ensuring that both electric winches meet the designed slack amount, the backup winch of the two electric winches has an additional Amm stroke (i.e., backup length) compared to the main winch, which can prevent the two electric winches from tightening the plug at the same time after the plug is in place. Preferably: Amm = 50mm, but not limited to Amm = 50mm.
[0072] When the pulling rope is a steel wire rope, the slack of the pulling rope is checked. The existing method can be used to check the parameters of the pulling rope, so it is not repeated here.
[0073] As an embodiment, when there is only an eye bolt, the other end of the pulling rope passes through the eye bolt and is connected to the plug.
[0074] As another embodiment, when there is an eyebolt and a first guide wheel, the other end of the pulling rope passes through the first guide wheel and the eyebolt in sequence and is connected to the plug.
[0075] As another embodiment, when there are an eyebolt, a first guide wheel and a second guide wheel, the other end of the pulling rope passes through the second guide wheel, the first guide wheel and the eyebolt in sequence and is connected to the plug.
[0076] S2: The rocket is erected and landed on the launch pad, completing the process operation. After the erection frame is erected, it falls to the preset angle, the socket and plug are automatically disconnected, and the electric winch receives the automatic disconnection signal. If the automatic disconnection signal is a success, the electric winch runs, drives the pulling rope to recycle the plug, and sends a recovery signal; if the automatic disconnection signal is a failure, the electric winch runs, drives the pulling rope to passively disconnect the plug, recycles the plug, and sends a recovery signal.
[0077] Specifically, as an embodiment, two electric winches receive an automatic power-off signal. If the automatic power-off signal indicates that the automatic power-off is successful, the two electric winches run simultaneously, drive the pulling rope to recover the plug, and send a recovery signal.
[0078] Furthermore, the number of turns of the main winch recovered by the pulling rope of the main winch is analyzed according to the number of turns of the main winch adjusted and verified on-site by the amount of slack. If they are consistent, the main winch and the backup winch stop at the same time. At this time, the pulling rope of the main winch is in a tensioned state, and the pulling rope of the backup winch is in a relaxed state, and the recovery signal is successful; if they are inconsistent, the main winch is faulty, and the passive shedding and / or recovery of the plug is achieved through the backup winch. When the passive shedding and / or recovery of the plug is achieved through the backup winch, the number of turns of the backup winch recovered by the pulling rope of the backup winch is analyzed according to the number of turns of the backup winch adjusted and verified on-site by the amount of slack. If they are consistent, the backup winch stops, the pulling rope of the backup winch is in a tensioned state, and the recovery signal is successful; if they are inconsistent, the recovery signal is failed.
[0079] S3: If the recovery signal is successful, the plug is removed and the erection frame returns to the horizontal position; if the recovery signal is unsuccessful, the erection frame is controlled to move, and the displacement of the erection frame drives the electric winch to move, thereby driving the pulling rope to passively remove the plug, and recover the plug, and the erection frame returns to the horizontal position.
[0080] Specifically, since the electric winch has functions such as braking and preventing the pulling rope from falling over, when the electric winch fails, the length of the pulling rope that has not been fully recovered remains unchanged. Therefore, the movement of the erection frame can be controlled, and the displacement of the erection frame can drive the electric winch to move, thereby driving the pulling rope to make the plug passively fall off and recover the plug.
[0081] The beneficial effects achieved by this application are as follows:
[0082] (1) The two-stage plug-out structure and working method with redundant electric winches of the present application can ensure the reliability of the pulling rope during the recovery operation through the electric winches, and has redundant electric winches. When one electric winch fails, the other electric winch can still achieve passive plug-out and / or recovery, thereby improving the success rate of plug-out.
[0083] (2) The secondary disconnection and insertion structure with redundant electric winches of the present application can adjust the angle of the pulling rope through the eye bolt so that the angle of the pulling rope is within the allowable range, thereby increasing the success rate of mechanical disconnection.
[0084] (3) The secondary disconnection and insertion structure with redundant electric winches of the present application can adjust the angle of the pulling rope through the eye bolts and multiple guide wheels, further making the angle of the pulling rope within the allowable range, thereby increasing the success rate of mechanical disconnection.
[0085] Although the preferred embodiments of the present application have been described, those skilled in the art may make additional changes and modifications to these embodiments once they are aware of the basic creative concepts. Therefore, the scope of protection of the present application is intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present application. Obviously, those skilled in the art may make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the protection scope of the present application and its equivalent technology, the present application is also intended to include these modifications and variations.
Claims
1. A two-stage plug-in / plug-out structure with redundant electric winches, characterized in that: include: mounting brackets, at least two electric winches, at least one eyebolt, plug and socket; Wherein, at least two electric winches are arranged on the mounting bracket; At least one eye bolt is disposed on the mounting bracket, and at least one eye bolt is located above at least two electric winches; One electric winch corresponds to one pulling rope, one end of each pulling rope is connected to the corresponding electric winch, and the other end of each pulling rope passes through the same lifting eye bolt of at least one lifting eye bolt and is connected to the plug; The plug and the socket are detachably connected.
2. The two-stage plug-in / plug-out structure with redundant electric winches according to claim 1, characterized in that: Also includes: at least two first guide wheels; At least two first guide wheels are disposed on the mounting bracket and are located below at least one eye bolt; One pulling rope corresponds to one first guide wheel; The other end of each pulling rope passes through the corresponding first guide wheel, and then passes through the same eye bolt of at least one eye bolt, and is connected to the plug.
3. The two-stage plug-in / plug-out structure with redundant electric winches according to claim 2, characterized in that: Also includes: at least two second guide wheels; One electric winch corresponds to one second guide wheel, and each second guide wheel is arranged on one side of the base of the corresponding electric winch; The other end of the pulling rope corresponding to each electric winch passes through the corresponding second guide wheel, the first guide wheel and the same lifting eye bolt of at least one lifting eye bolt in sequence, and is connected to the plug.
4. The two-stage plug-in / plug-out structure with redundant electric winches according to claim 3, characterized in that: The mounting bracket includes at least: a guide bracket and an equipment bracket; Wherein, the guide bracket comprises: a bracket connecting plate, a first guide vertical beam, a first guide horizontal beam, a second guide vertical beam and a second guide horizontal beam; The bracket connecting plate is arranged at the installation position; The first guide vertical beam is detachably connected to the bracket connecting plate; The upper end of the first guide vertical beam is connected to one end of the first guide horizontal beam, and a first connection angle is formed between the first guide vertical beam and the second guide horizontal beam; at least one eye bolt is disposed on the first guide horizontal beam and is close to the other end of the first guide horizontal beam; The upper end of the second guide vertical beam is connected to the first guide cross beam, and there is a second connection angle between the second guide vertical beam and the first guide cross beam; the second guide vertical beam is located between the first guide vertical beam and at least one eye bolt; One end of the second guide cross beam is connected to the lower end of the second guide vertical beam, and a third connection angle is formed between the second guide cross beam and the second guide vertical beam; at least two first guide wheels are arranged on the second guide cross beam; The equipment bracket includes: an equipment mounting beam and a plurality of equipment mounting seats; The equipment installation beam is set at the installation position; A plurality of equipment mounting seats are arranged at the lower end of the equipment mounting beam; One equipment mounting seat corresponds to at least one electric winch, and the lower end of the base of the electric winch is connected to the equipment mounting seat.
5. The two-stage plug-out structure with redundant electric winches according to claim 4, characterized in that: A plurality of bracket installation holes are arranged on the bracket connecting plate. During installation, the first guide vertical beam is connected to a group of bracket installation holes among the plurality of bracket installation holes.
6. The two-stage plug-out structure with redundant electric winches according to claim 4, characterized in that: At least one lifting ring connection hole is arranged on the first guide crossbeam, and the at least one lifting ring connection hole is close to the other end of the first guide crossbeam, and the lifting ring bolt is connected to the lifting ring connection hole.
7. The two-stage plug-out structure with redundant electric winches according to claim 6, characterized in that: The lifting ring connection hole is a strip hole, and the length direction of the strip hole is parallel to the length direction of the first guide beam.
8. The two-stage plug-in / plug-out structure with redundant electric winches according to claim 4, characterized in that: There are two equipment mounting seats. After the mounting bracket is installed, one equipment mounting seat is located on one side of the second guide beam, and the other equipment mounting seat is located on the other side of the second guide beam; There are two electric winches, one electric winch is arranged on one equipment mounting seat, and the other electric winch is arranged on another equipment mounting seat.
9. The two-stage plug-in / plug-out structure with redundant electric winches according to claim 8, characterized in that: One electric winch is used as the main winch, and the corresponding pulling rope length is: pulling rope length = theoretical design length + slack + connection length; Another electric winch is used as a backup winch, and the corresponding length of the pulling rope is: the length of the pulling rope = theoretical design length + slack + connection length + backup length.
10. A working method, characterized in that: Applied to the two-stage plug-out structure with redundant electric winches as described in any one of claims 1 to 9, the working method comprises the following steps: S1: When the rocket is in a horizontal state, the socket is installed on the rocket body, the mounting bracket is installed on the erection frame, the electric winch arranged on the mounting bracket is connected to one end of the pulling rope, the other end of the pulling rope is connected to the plug after passing through the eye bolt, and the pulling rope is in a line-release state; the rocket body is hoisted onto the erection frame, the plug and the socket are docked, and after the docking is completed, the parameters of the pulling rope are checked, and after the verification is completed, S2 is executed; S2: The rocket is erected and placed on the launch pad, completing the process operation. After the erection frame is erected, it falls to the preset angle, the socket and the plug are automatically disconnected, and the electric winch receives the automatic disconnection signal. If the automatic disconnection signal indicates that the automatic disconnection is successful, the electric winch runs, drives the pulling rope to recycle the plug, and sends a recovery signal; if the automatic disconnection signal indicates that the automatic disconnection fails, the electric winch runs, drives the pulling rope to passively disconnect the plug, recycles the plug, and sends a recovery signal; S3: If the recovery signal is successful, the plug is removed and the erection frame returns to the horizontal position; if the recovery signal is unsuccessful, the erection frame is controlled to move, and the displacement of the erection frame drives the electric winch to move, thereby driving the pulling rope to passively remove the plug, and recover the plug, and the erection frame returns to the horizontal position.