CN115432210A - Gear transmission step type hatch cover overturning and locking mechanism and overturning and locking method thereof - Google Patents
Gear transmission step type hatch cover overturning and locking mechanism and overturning and locking method thereof Download PDFInfo
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- CN115432210A CN115432210A CN202111603954.8A CN202111603954A CN115432210A CN 115432210 A CN115432210 A CN 115432210A CN 202111603954 A CN202111603954 A CN 202111603954A CN 115432210 A CN115432210 A CN 115432210A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64G—COSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR
- B64G1/00—Cosmonautic vehicles
- B64G1/22—Parts of, or equipment specially adapted for fitting in or to, cosmonautic vehicles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64G—COSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR
- B64G1/00—Cosmonautic vehicles
- B64G1/22—Parts of, or equipment specially adapted for fitting in or to, cosmonautic vehicles
- B64G1/66—Arrangements or adaptations of apparatus or instruments, not otherwise provided for
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Abstract
A gear transmission step type hatch cover overturning and locking mechanism and an overturning and locking method thereof relate to the technical field of hatch cover connecting mechanisms of freight airships, reusable carriers and the like. The invention solves the problems that the existing connecting mechanism of the hatch cover can not meet the requirements of quick and stable unlocking, opening, closing, unlocking and locking, and the hatch cover can not be opened due to the simultaneous operation of the locking mechanism and the turnover mechanism. When the hatch cover is unlocked, the driving mechanism drives the pull rod to move rightwards, and the small-diameter rod in the pull rod moves to the lock catch fracture; when the hatch is locked, the driving mechanism drives the pull rod to move leftwards, and at the moment, the large-diameter rod in the pull rod moves to the position of the lock catch fracture; when the hatch cover is turned over, the driving mechanism drives the short connecting rod to rotate, the short connecting rod drives the long connecting rod to rotate, and the long connecting rod drives the turning hinge and the hatch cover to realize turning action. The invention is used for satisfying the reliable connection of goods, pallets and the hatch cover body in the ascending process, and has the functions of quick and stable unlocking, unlocking closing and locking.
Description
Technical Field
The invention relates to the technical field of cabin cover connecting mechanisms of freight airships, reusable carriers and the like, in particular to a gear transmission step type cabin cover overturning locking mechanism and an overturning locking method thereof.
Background
With the continuous development of manufacturing technology and space technology, cargo ships and space shuttle aircrafts are burdened with the 'space transport system'. The cargo ship has the function of an open cargo hold and is used for meeting the requirement of bidirectional movement of non-supercharged cargos. Due to the severe space environment, the longer the capsule is exposed to the space environment, the more difficult the capsule can provide safety guarantee for astronauts, so that the connecting mechanism of the capsule cover not only needs to provide reliable connection between goods and pallets and the airship body in the ascending process, but also has the functions of unlocking, opening, closing and locking quickly and stably.
In conclusion, the existing cabin cover connecting mechanism cannot be unlocked, opened, closed and locked quickly and stably, and the problem that the cabin cover cannot be opened due to the fact that the locking mechanism 5 and the turnover mechanism 4 run simultaneously can occur.
Disclosure of Invention
The invention aims to solve the problems that the existing connecting mechanism of the hatch cover cannot be unlocked, opened, closed and locked quickly and stably and the hatch cover cannot be opened due to the fact that the locking mechanism 5 and the turnover mechanism 4 operate simultaneously, and further provides a gear transmission step-by-step type hatch cover turnover locking mechanism and a turnover locking method thereof.
The technical scheme of the invention is as follows:
a gear transmission step-by-step hatch cover overturning locking mechanism comprises an overturning mechanism 4, a locking mechanism 5 and a driving mechanism 6, wherein the overturning mechanism 4 comprises an overturning hinge 15, a fixed hinge 17, a long connecting rod 20 and a short connecting rod 22, the overturning hinge 15 is a C-shaped hinge, the opening of the C-shaped hinge faces upwards when a hatch cover 2 is in a closed state, one end of the overturning hinge 15 is fixedly connected with the tail part of the hatch cover 2, a rectangular notch is processed at the other end of the overturning hinge 15, the fixed hinge 17 is arranged in the rectangular notch, the fixed hinge 17 is integrally formed by a ring-shaped sleeve at one end and a rectangular plate at the other end, the ring-shaped sleeve at one end of the fixed hinge 17 is rotatably arranged on the overturning hinge 15 through a pin shaft, the rectangular plate at the other end of the fixed hinge 17 is fixedly connected with the top of a hatch rear end 3, the lower part of the overturning hinge 15 is hinged with the upper part of the long connecting rod 20, the lower part of the long connecting rod 20 is hinged with the upper part of the short connecting rod 22, and the lower part of the short connecting rod 22 is connected with the driving mechanism 6; the locking mechanism 5 comprises two pull rods 14, two pairs of latches 13, two constant force mechanisms 12, two wedges and three pairs of shaft supports 11, each pull rod 14 comprises two small-diameter rods and three large-diameter rods, the three large-diameter rods are sequentially and coaxially arranged from front to back along the length direction of the cabin 1, a small-diameter rod is coaxially and fixedly connected between every two adjacent large-diameter rods, the two pull rods 14 are symmetrically arranged on the left side and the right side of the inside of the cabin 1 side by side along the length direction of the cabin 1, the two pull rods 14 are connected with the cabin 1 through the three pairs of shaft supports 11, the two pull rods 14 are connected with the cabin cover 2 through the two pairs of latches 13, one ends of the two pull rods 14 close to the rear end 3 of the cabin are connected with the driving mechanism 6, the two pull rods 14 do linear reciprocating motion along the length direction of the cabin 1 under the driving of the driving mechanism 6, three shaft supports 11 are installed on each pull rod 14, the shaft supports 11 are arranged on the large-diameter rods positioned at the end parts, the shaft support 11 is provided with a large-diameter assembly hole a matched with a large-diameter rod of a pull rod 14, the lower end of the shaft support 11 is slidably sleeved on the pull rod 14, the upper end of the shaft support 11 is fixedly connected with the lower end face of the inner edge of the upper part of the cabin 1, each pull rod 14 is provided with two latches 13, the latches 13 are arranged at the joints of the small-diameter rods and the corresponding large-diameter rods, the latches 13 are of inverted L-shaped structures, the latches 13 are provided with large-diameter assembly holes b matched with the large-diameter rods of the pull rods 14, a fracture matched with the small-diameter rods of the pull rods 14 is arranged between the bottoms of the large-diameter assembly holes b and the lower end face of the latches 13, the lower ends of the latches 13 are slidably sleeved on the pull rods 14, the upper ends of the latches 13 are fixedly connected with the upper end face of the inner edge of the lower part of the cabin cover 2, the outer side of each pull rod 14 is provided with a constant force mechanism 12, the constant force mechanisms 12 are arranged on the outer side of the large-diameter rods close to the rear end 3 of the cabin, and a wedge block matched with the constant force mechanism 12 is fixed on the side surface of the large-diameter rod.
Furthermore, each constant force mechanism 12 comprises a support 26, a pressure spring sleeve 27, a constant force pin 28 and a pressure spring, wherein the support 26 is of an inverted L-shaped plate structure, a transverse plate of the support 26 is fixedly connected with the lower end face of the inner edge of the upper portion of the cabin 1, a pin hole is processed in the center of a vertical plate of the support 26, an annular stop bulge is arranged in the middle of the constant force pin 28, the head end of the constant force pin 28 penetrates through the pin hole of the support 26 from outside to inside, the pressure spring sleeve 27 is of a hollow cylindrical structure with an opening at one end, the pressure spring sleeve 27 is coaxially sleeved at the tail end of the constant force pin 28, the front end of the pressure spring sleeve 27 is detachably connected with the vertical plate of the support 26 through a connecting element, the pressure spring is coaxially arranged inside the pressure spring sleeve 27, one end of the pressure spring abuts against an end plate of the pressure spring sleeve 27, the other end of the pressure spring abuts against the tail end of the constant force pin 28, and an inclined plane matched with a corresponding wedge block is processed at the end of the constant force pin 28 extending out of the support 26.
Further, the driving mechanism 6 comprises a transmission shaft 21, a large bevel gear 23, a small bevel gear 24, a differential gear 25, a driving cylindrical gear 7, a driven cylindrical gear 8, a motor mounting seat, two bearings, two bearing seats, two driving bevel gears 9, two driven bevel gears 10 and two lead screws 19, inner threaded holes matched with the lead screws 19 are axially processed in the bottom surface of a large-diameter rod of one side of each of the two pull rods 14 close to the rear end 3 of the cabin, one ends of the two lead screws 19 are respectively and spirally mounted in the inner threaded holes of the two pull rods 14, two driven bevel gears 10 are respectively mounted on optical axes of the other ends of the two lead screws 19, the transmission shaft 21 is horizontally arranged, the transmission shaft 21 is mounted on the cabin seat 1 through the two bearing seats, the bearings are arranged between the bearing seats and the transmission shaft 21, the two driving bevel gears 9 are respectively mounted at two ends of the transmission shaft 21, the driving bevel gears 9 are respectively engaged with the two driven bevel gears 10, the driven cylindrical gear 8 is mounted in the middle of the transmission shaft 21, the differential gear 25 is arranged side by side, the transmission shaft 21 is mounted on an output shaft of the driving bevel gear 7, a connecting rod 22 is mounted on the large bevel gear shaft sleeve of the driving bevel gear 23, and the small bevel gear 23 is mounted on the output shaft of the motor, and the motor is connected with the large bevel gear 24.
Further, when the hatch cover 2 is unlocked, the two pull rods 14 are driven by the driving mechanism 6 to move rightwards, and at the moment, the small-diameter rod in the pull rod 14 moves to the position of the fracture of the lock catch 13, so that the unlocking state of the locking mechanism 5 is realized; when the hatch cover 2 is locked, the two pull rods 14 move leftwards under the driving of the driving mechanism 6, and at the moment, the large-diameter rod in the pull rods 14 moves to the position of the fracture of the lock catch 13, so that the locking state of the locking mechanism 5 is realized; when the hatch cover 2 is overturned, the short connecting rod 22 is driven by the driving mechanism 6 to rotate, the short connecting rod 22 drives the long connecting rod 20 to rotate, the long connecting rod 20 drives the overturning hinge 15 to realize overturning motion, and the overturning hinge 15 drives the hatch cover 2 to realize overturning motion.
Further, the locking mechanism 5 also comprises three pairs of bolts 16, and the flip hinge 15 is connected with the hatch 2 by the three pairs of bolts 16.
Further, the locking mechanism 5 also comprises three pairs of screws 18, and the fixed hinge 17 is connected to the top of the cabin rear end 3 by the three pairs of screws 18.
A turnover locking method based on the gear transmission step type hatch cover turnover locking mechanism, which is realized by the following steps,
step one, completing the locking action of the hatch cover 2 by motor driving:
the motor drives the small bevel gear 24 to provide torque, the small bevel gear 24 transmits power to the differential mechanism 25 through the meshing motion with the large bevel gear 23, the differential mechanism 25 drives the transmission shaft 21 to rotate through the gear transmission of the driving cylindrical gear 7 and the driven cylindrical gear 8, and drives the two lead screws 19 to rotate through the gear transmission of the driving bevel gear 9 and the driven bevel gear 10 at two ends, so that the power is transmitted to the locking mechanism 5;
when the hatch cover 2 is locked, the two pull rods 14 move leftwards under the driving of the driving mechanism 6, at the moment, the large-diameter rod in the pull rods 14 moves to the position of the fracture of the lock catch 13, and the large-diameter rod cannot pass through the fracture on the lock catch 13, so that the locking state of the locking mechanism 5 is realized;
step two, the motor drives to complete the unlocking action of the hatch cover 2:
when the hatch cover 2 is unlocked, the two pull rods 14 are driven by the driving mechanism 6 to move rightwards, and at the moment, the small-diameter rod in the pull rod 14 moves to the position of the fracture of the lock catch 13, so that the unlocking state of the locking mechanism 5 is realized;
step three, the motor drives to complete the overturning action of the hatch cover 2:
the motor drives the small bevel gear 24 to provide torque, the small bevel gear 24 transmits power to the differential mechanism 25 through meshing motion with the large bevel gear 23, the differential mechanism 25 drives the large bevel gear to rotate through turning, the large bevel gear 23 drives the short connecting rod 22 to rotate, the short connecting rod drives the long connecting rod to rotate, the long connecting rod drives the overturning hinge to realize overturning motion, and the overturning hinge drives the cabin cover 2 to realize overturning motion.
The three steps of the gear transmission step-by-step hatch cover overturning and locking mechanism are repeated, so that the repeated unlocking and overturning actions of the hatch cover 2 are realized.
Compared with the prior art, the invention has the following effects:
1. according to the gear transmission step-by-step type hatch cover overturning and locking mechanism, the overturning mechanism 4 and the locking mechanism 5 are simultaneously driven by one motor, the unlocking and locking states of the hatch cover 2 are firstly realized by utilizing the reversing principle of the differential mechanism 25, and the overturning state of the hatch cover 2 is finally realized, so that the reliable connection of goods, pallets and a hatch cover body in the ascending process can be provided, and meanwhile, the gear transmission step-by-step type hatch cover overturning and locking mechanism has the functions of quickly and stably unlocking, opening and closing and locking;
2. the locking principle of the gear transmission step-by-step hatch cover overturning locking mechanism is composed of a locking mechanism 5 and a constant force mechanism 12, wherein the constant force mechanism 12 mainly limits the unlocking state of the locking mechanism 5;
3. the differential mechanism 25 of the gear transmission step-by-step hatch cover overturning locking mechanism drives and reverses according to force value conversion, so that the locking action and the overturning action are completed step by step, and the problems that the hatch cover cannot be opened and the like due to the fact that the locking mechanism 5 and the overturning mechanism 4 operate simultaneously can be solved.
Drawings
Fig. 1 is an axonometric view of a gear transmission step type hatch cover turnover locking mechanism of the invention before being combined with a hatch seat 1, a hatch cover 2 and a hatch back end 3 to be turned over;
FIG. 2 is an isometric view of the gear-driven step-by-step hatch cover flip-lock mechanism of the present invention in combination with a hatch frame 1, hatch cover 2 and hatch back end 3 after flipping;
FIG. 3 is an isometric view of the gear step deck lid flip lock mechanism of the present invention;
FIG. 4 is a schematic view of the assembly of the constant force mechanism 12 and the pull rod 14 of the gear-driven step-by-step hatch cover turnover locking mechanism of the present invention;
fig. 5 is an isometric view of the constant force mechanism 12 of the gear step deck lid-flip lock mechanism of the present invention.
In the figure: 1-a cabin seat; 2-a hatch; 3-rear end of cabin; 4-turning over mechanism; 5-a locking mechanism; 6-a drive mechanism; 7-driving cylindrical gear; 8-driven cylindrical gear; 9-drive bevel gear; 10-driven bevel gear; 11-shaft support; 12-a constant force mechanism; 13-locking; 14-a pull rod; 15-turning over the hinge; 16-bolt; 17-a fixed hinge; 18-a screw; 19-a lead screw; 20-long connecting rod; 21-a transmission shaft; 22-short link; 23-large bevel gear; 24-bevel pinion; 25-differential gear; 26-a support; 27-a compression spring sleeve; 28-constant force pin.
Detailed Description
The first specific implementation way is as follows: the present embodiment is described with reference to fig. 1 to 3, and the gear transmission step-by-step hatch cover turnover locking mechanism of the present embodiment includes a turnover mechanism 4, a locking mechanism 5 and a driving mechanism 6, where the turnover mechanism 4 includes a turnover hinge 15, a fixed hinge 17, a long connecting rod 20 and a short connecting rod 22, the turnover hinge 15 is a C-shaped hinge, when the hatch cover 2 is in a closed state, an opening of the C-shaped hinge faces upward, one end of the turnover hinge 15 is fixedly connected with a tail portion of the hatch cover 2, the other end of the turnover hinge 15 is processed with a rectangular notch, the fixed hinge 17 is disposed in the rectangular notch, the fixed hinge 17 is integrally formed by a ring-shaped sleeve at one end and a rectangular plate at the other end of the fixed hinge 17, the ring-shaped sleeve at one end of the fixed hinge 17 is rotatably mounted on the turnover hinge 15 by a pin, the rectangular plate at the other end of the fixed hinge 17 is fixedly connected with a top portion of the hatch rear end 3, a lower portion of the turnover hinge 15 is hinged with an upper portion of the long connecting rod 20, a lower portion of the long connecting rod 20 is hinged with an upper portion of the short connecting rod 22, and a lower portion of the short connecting rod 22 is connected with the driving mechanism 6; the locking mechanism 5 comprises two pull rods 14, two pairs of latches 13, two constant force mechanisms 12, two wedges and three pairs of shaft supports 11, each pull rod 14 comprises two small-diameter rods and three large-diameter rods, the three large-diameter rods are sequentially and coaxially arranged from front to back along the length direction of the cabin 1, a small-diameter rod is coaxially and fixedly connected between every two adjacent large-diameter rods, the two pull rods 14 are symmetrically arranged on the left side and the right side of the inside of the cabin 1 side by side along the length direction of the cabin 1, the two pull rods 14 are connected with the cabin 1 through the three pairs of shaft supports 11, the two pull rods 14 are connected with the cabin cover 2 through the two pairs of latches 13, one ends of the two pull rods 14 close to the rear end 3 of the cabin are connected with the driving mechanism 6, the two pull rods 14 do linear reciprocating motion along the length direction of the cabin 1 under the driving of the driving mechanism 6, three shaft supports 11 are installed on each pull rod 14, the shaft supports 11 are arranged on the large-diameter rods positioned at the end parts, a large-diameter assembly hole a matched with a large-diameter rod of a pull rod 14 is processed on a shaft support 11, the lower end of the shaft support 11 is slidably sleeved on the pull rod 14, the upper end of the shaft support 11 is fixedly connected with the lower end face of the inner edge of the upper part of a cabin 1, two lock catches 13 are mounted on each pull rod 14, the lock catches 13 are arranged at the joints of small-diameter rods and corresponding large-diameter rods, the lock catches 13 are of inverted L-shaped structures, large-diameter assembly holes b matched with the large-diameter rods of the pull rods 14 are processed on the lock catches 13, a fracture matched with the small-diameter rods of the pull rods 14 is processed between the bottoms of the large-diameter assembly holes b and the lower end faces of the lock catches 13, the lower ends of the lock catches 13 are slidably sleeved on the pull rods 14, the upper ends of the lock catches 13 are fixedly connected with the upper end face of the inner edge of the lower part of a cabin cover 2, a constant force mechanism 12 is arranged on the outer side of each pull rod 14, and the constant force mechanism 12 is arranged on the outer side of the large-diameter rods close to the rear end 3 of the cabin, and a wedge block matched with the constant force mechanism 12 is fixed on the side surface of the large-diameter rod.
The rear end 3 of the cabin of the embodiment is designed with a fixed hinge 17, the cabin cover 2 turns backwards around the fixed hinge 17 when being opened, and because the installation position of the fixed hinge 17 is limited, in order to enable the cabin cover 2 to be opened smoothly, the joint surface of the root part of the cabin cover 2 and the cabin 1 needs to be inclined backwards by 30 degrees, and the joint surface of the front part of the cabin cover 2 and the cabin 1 needs to be inclined forwards by 8 degrees.
The second embodiment is as follows: the embodiment is described with reference to fig. 3 to fig. 5, each constant force mechanism 12 of the embodiment includes a support 26, a pressure spring sleeve 27, a constant force pin 28, and a pressure spring, the support 26 is an inverted L-shaped plate structure, a transverse plate of the support 26 is fixedly connected to the upper inner edge of the cabin seat 1 along the lower end surface, a pin hole is processed in the center of a vertical plate of the support 26, an annular stop protrusion is arranged in the middle of the constant force pin 28, a head end of the constant force pin 28 penetrates through the pin hole of the support 26 from outside to inside, the pressure spring sleeve 27 is a hollow cylindrical structure with an open end, the pressure spring sleeve 27 is coaxially sleeved at the tail end of the constant force pin 28, the front end of the pressure spring sleeve 27 is detachably connected to the vertical plate of the support 26 through a connecting element, the pressure spring is coaxially arranged inside the pressure spring sleeve 27, one end of the pressure spring abuts against an end plate of the pressure spring sleeve 27, the other end of the pressure spring abuts against the tail end of the constant force pin 28, and an inclined surface matched with the corresponding wedge block is processed at the end of the constant force pin 28 extending out of the support 26. So set up, when carrying out the unblock of hatch cover 2 or locking, the motion of pull rod 14 receives the restriction of constant force mechanism 12, the constant force round pin 28 inboard of constant force mechanism 12 is equipped with the pressure spring, when pull rod 14 right pulling force is less, the pressure of transmitting through the inclined plane is less, the pressure spring can not compress when this pressure is no longer than the initial pressure of pressure spring, the pull rod just also can't move right, the pressure spring just can compress when the pressure of transmitting for the pressure spring is greater than the initial pressure of pressure spring, pull rod 14 can just move right this moment. Other components and connections are the same as in the first embodiment.
The third concrete implementation mode: the driving mechanism 6 of the embodiment includes a transmission shaft 21, a large bevel gear 23, a small bevel gear 24, a differential mechanism 25, a driving cylindrical gear 7, a driven cylindrical gear 8, a motor mounting seat, two bearings, two bearing seats, two driving bevel gears 9, two driven bevel gears 10 and two lead screws 19, wherein inner threaded holes matched with the lead screws 19 are axially processed on the bottom surfaces of the large diameter rods of the two pull rods 14 near the rear end 3 of the cabin, one ends of the two lead screws 19 are respectively and spirally mounted in the inner threaded holes of the two pull rods 14, the two driven bevel gears 10 are respectively mounted on the optical axes of the other ends of the two lead screws 19, the transmission shaft 21 is horizontally arranged, the transmission shaft 21 is mounted on the cabin seat 1 through the two bearing seats, the bearings are arranged between the bearing seats and the transmission shaft 21, the two driving bevel gears 9 are respectively mounted at the two ends of the transmission shaft 21, the driving bevel gears 9 are respectively engaged with the two driven bevel gears 10, the driven cylindrical gear 8 is mounted in the middle of the transmission shaft 21, the differential mechanism 25 is arranged side by side on the side of the transmission shaft 21, the output shaft of the differential mechanism 25 is mounted on the driving bevel gears 7, the driving bevel gears 7 is engaged with the small bevel gears 23, the motor is mounted on the large bevel gears 23, the output shaft sleeve of the small bevel gears 24, and the motor is mounted on the small bevel gears 23, the motor mounted on the connecting rod 23, and the small bevel gears 24, and the motor is connected with the motor. According to the arrangement, the motor drives the turnover mechanism 4 and the locking mechanism 5 at the same time, the reversing principle of the differential mechanism 25 is utilized to firstly realize the unlocking and locking states of the hatch cover 2 and finally realize the turnover state of the hatch cover 2, so that the reliable connection of goods, pallets and the hatch cover body in the ascending process can be provided, and the functions of quick and stable unlocking, opening, closing and locking are realized. The differential mechanism 25 is driven to change direction according to force values, so that locking and overturning actions can be completed step by step, and the problems that the hatch cover cannot be opened due to simultaneous operation of the locking mechanism 5 and the overturning mechanism 4 can be solved. Other components and connection relationships are the same as in the first or second embodiment.
The differential mechanism 25 is a gelf differential ann kelly 459 medium axle differential mechanism.
The fourth concrete implementation mode is as follows: with reference to fig. 1 to 3, the present embodiment is described, when the hatch cover 2 of the present embodiment is unlocked, the two pull rods 14 are driven by the driving mechanism 6 to move rightward, and at this time, the small-diameter rod in the pull rod 14 moves to the position of the break of the lock catch 13, so that the unlocking state of the locking mechanism 5 is realized; when the hatch cover 2 is locked, the two pull rods 14 move leftwards under the driving of the driving mechanism 6, and at the moment, the large-diameter rod in the pull rods 14 moves to the position of the fracture of the lock catch 13, so that the locking state of the locking mechanism 5 is realized; when the hatch cover 2 is overturned, the short connecting rod 22 is driven by the driving mechanism 6 to rotate, the short connecting rod 22 drives the long connecting rod 20 to rotate, the long connecting rod 20 drives the overturning hinge 15 to realize overturning motion, and the overturning hinge 15 drives the hatch cover 2 to realize overturning motion. Other compositions and connection relationships are the same as in the first, second or third embodiment.
The fifth concrete implementation mode is as follows: the present embodiment is described with reference to fig. 1 to 3, and the latch mechanism 5 of the present embodiment further includes three pairs of bolts 16, and the flip hinge 15 is connected to the hatch 2 by the three pairs of bolts 16. Other compositions and connection relationships are the same as those in the first, second, third, or fourth embodiment.
The sixth specific implementation mode is as follows: the present embodiment is described with reference to fig. 1 to 5, and the locking mechanism 5 of the present embodiment further includes three pairs of screws 18, and the fixed hinge 17 is connected to the top of the cabin rear end 3 by the three pairs of screws 18. Other compositions and connection relationships are the same as in the first, second, third, fourth or fifth embodiment.
The seventh embodiment: the embodiment is described with reference to fig. 1 to 5, and a turnover locking method based on the gear transmission step type hatch cover turnover locking mechanism of the embodiment is realized by the following steps,
step one, completing the locking action of the hatch cover 2 by motor driving:
the motor drives the small bevel gear 24 to provide torque, the small bevel gear 24 transmits power to the differential mechanism 25 through the meshing motion with the large bevel gear 23, the differential mechanism 25 drives the transmission shaft 21 to rotate through the gear transmission of the driving cylindrical gear 7 and the driven cylindrical gear 8, and drives the two lead screws 19 to rotate through the gear transmission of the driving bevel gear 9 and the driven bevel gear 10 at two ends, so that the power is transmitted to the locking mechanism 5;
when the hatch cover 2 is locked, the two pull rods 14 move leftwards under the driving of the driving mechanism 6, at the moment, the large-diameter rod in the pull rods 14 moves to the position of the fracture of the lock catch 13, and the large-diameter rod cannot pass through the fracture on the lock catch 13, so that the locking state of the locking mechanism 5 is realized;
step two, the motor drives to complete the unlocking action of the hatch cover 2:
when the hatch cover 2 is unlocked, the two pull rods 14 move rightwards under the driving of the driving mechanism 6, and at the moment, the small-diameter rod in the pull rod 14 moves to the position of the fracture of the lock catch 13, so that the unlocking state of the locking mechanism 5 is realized;
step three, the motor drives to complete the overturning action of the hatch cover 2:
the motor drives the small bevel gear 24 to provide torque, the small bevel gear 24 transmits power to the differential mechanism 25 through meshing motion with the large bevel gear 23, the differential mechanism 25 drives the large bevel gear to rotate through turning, the large bevel gear 23 drives the short connecting rod 22 to rotate, the short connecting rod drives the long connecting rod to rotate, the long connecting rod drives the turnover hinge to realize turnover motion, and the turnover hinge drives the cabin cover 2 to realize turnover motion.
The three steps of the gear transmission step-by-step hatch cover overturning and locking mechanism are repeated, so that the repeated unlocking and overturning actions of the hatch cover 2 are realized. Other compositions and connection relationships are the same as in the first, second, third, fourth, fifth or sixth embodiment.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (7)
1. The utility model provides a gear drive step by step hatch cover upset locking mechanism which characterized in that: the cabin cover closing mechanism comprises a turnover mechanism (4), a locking mechanism (5) and a driving mechanism (6), wherein the turnover mechanism (4) comprises a turnover hinge (15), a fixed hinge (17), a long connecting rod (20) and a short connecting rod (22), the turnover hinge (15) is a C-shaped hinge, the opening of the C-shaped hinge faces upwards when the cabin cover (2) is in a closing state, one end of the turnover hinge (15) is fixedly connected with the tail part of the cabin cover (2), a rectangular notch is machined in the other end of the turnover hinge (15), the fixed hinge (17) is arranged in the rectangular notch, the fixed hinge (17) is integrally formed by an annular sleeve at one end and a rectangular plate at the other end of the fixed hinge (17), the annular sleeve at one end of the fixed hinge (17) is rotatably installed on the turnover hinge (15) through a pin shaft, the rectangular plate at the other end of the fixed hinge (17) is fixedly connected with the top of the rear end (3) of the cabin, the lower part of the turnover hinge (15) is hinged with the upper part of the long connecting rod (20), the lower part of the long connecting rod (20) is hinged with the upper part of the short connecting rod (22), and the lower part of the short connecting rod (22) is connected with the driving mechanism (6); the locking mechanism (5) comprises two pull rods (14), two pairs of lock catches (13), two constant force mechanisms (12), two wedge blocks and three pairs of shaft supports (11), each pull rod (14) comprises two small-diameter rods and three large-diameter rods, the three large-diameter rods are sequentially and coaxially arranged along the length direction of the cabin base (1) from front to back, a small-diameter rod is coaxially and fixedly connected between every two adjacent large-diameter rods, the two pull rods (14) are symmetrically arranged on the left side and the right side inside the cabin base (1) side by side along the length direction of the cabin base (1), the two pull rods (14) are connected with the cabin base (1) through the three pairs of shaft supports (11), the two pull rods (14) are connected with the cabin cover (2) through the two pairs of lock catches (13), one ends, close to the rear end (3) of the two pull rods (14), are connected with the driving mechanism (6), the two pull rods (14) are driven by the driving mechanism (6) to do linear reciprocating motion along the length direction of the cabin base (1), the three pull rods (14) are arranged on the upper ends of the shaft supports (11), the three pull rods (11) which are arranged on the upper end faces of the shaft supports (11) and can be connected with the large-shaft supports (11), the diameter of the large-axis supports (11) in a, the diameter of the shaft supports (11) and the shaft supports (11) which are arranged in a fixed on the cabin base (11), and can be fixed, the upper ends of the large-axis seats, the large-axis seats (11), install two hasp (13) on every pull rod (14), hasp (13) are arranged in the junction of minor diameter pole and corresponding major diameter pole, and hasp (13) are the L type structure of invering, and processing has the major diameter pole assorted major diameter pilot hole b with pull rod (14) on hasp (13), processing has the minor diameter pole assorted fracture with pull rod (14) between major diameter pilot hole b bottom and hasp (13) lower terminal surface, and hasp (13) lower extreme slidable cover is established on pull rod (14), follows up end fixed connection in hasp (13) upper end and the lower part of cabin cover (2), and every pull rod (14) outside is provided with a constant force mechanism (12), constant force mechanism (12) are arranged in the major diameter pole outside that is close to cabin rear end (3) one side, major diameter pole side is fixed with the voussoir with constant force mechanism (12) assorted.
2. The gear transmission step-by-step hatch cover turnover locking mechanism of claim 1, characterized in that: each constant force mechanism (12) comprises a support (26), a pressure spring sleeve (27), a constant force pin (28) and a pressure spring, the support (26) is of an inverted L-shaped plate-shaped structure, a transverse plate of the support (26) is fixedly connected with the upper portion of the cabin (1) along the lower end face, a pin hole is machined in the center of a vertical plate of the support (26), an annular stop boss is arranged in the middle of the constant force pin (28), the head end of the constant force pin (28) penetrates through the pin hole of the support (26) from outside to inside, the pressure spring sleeve (27) is of a hollow cylindrical structure with an opening at one end, the pressure spring sleeve (27) is coaxially sleeved at the tail end of the constant force pin (28), the front end of the pressure spring sleeve (27) is detachably connected with the vertical plate of the support (26) through a connecting element, the pressure spring is coaxially arranged inside the pressure spring sleeve (27), one end of the pressure spring abuts against an end plate of the pressure spring sleeve (27), the other end of the pressure spring abuts against the constant force pin (28), and a wedge block matched with the end of the constant force pin (28) extending out of the support (26) is machined.
3. The gear transmission step-by-step hatch cover turnover locking mechanism according to claim 1 or 2, characterized in that: the driving mechanism (6) comprises a transmission shaft (21), a large bevel gear (23), a small bevel gear (24), a differential machine (25), a driving cylindrical gear (7), a driven cylindrical gear (8), a motor mounting seat, two bearings, two bearing seats, two driving bevel gears (9), two driven bevel gears (10) and two lead screws (19), wherein inner threaded holes matched with the lead screws (19) are axially processed in the bottom surfaces of large-diameter rods of the side parts of the two pull rods (14) close to one side of the rear end (3) of the cabin, one ends of the two lead screws (19) are respectively and spirally mounted in the inner threaded holes of the two pull rods (14), the two driven bevel gears (10) are respectively mounted on optical axes of the other ends of the two lead screws (19), the transmission shaft (21) is horizontally arranged, the transmission shaft (21) is mounted on the cabin base (1) through the two bearing seats, the bearings are arranged between the bearing seats and the transmission shaft (21), the two ends of the transmission shaft (21) are respectively provided with the two driving bevel gears (9), the driving bevel gears (9) are respectively engaged with the two driven bevel gears (10), the middle part of the transmission shaft (21) is provided with the driven bevel gear (8), the differential machine (25) side by side, and an output shaft (7) is mounted on the side of the differential machine, the driving cylindrical gear (7) is meshed with the driven cylindrical gear (8), a large bevel gear (23) is mounted on a shaft sleeve of the differential mechanism (25), an output shaft at the other end of the differential mechanism (25) is connected with the lower portion of the short connecting rod (22), the motor is mounted on the cabin base (1) through a motor mounting seat, a small bevel gear (24) is mounted on an output shaft of the motor, and the small bevel gear (24) is meshed with the large bevel gear (23).
4. The gear transmission step-by-step hatch cover turnover locking mechanism of claim 3, characterized in that: when the hatch cover (2) is unlocked, the two pull rods (14) are driven by the driving mechanism (6) to move rightwards, and at the moment, the small-diameter rod in the pull rods (14) moves to the position of the fracture of the lock catch (13), so that the unlocking state of the locking mechanism (5) is realized; when the hatch cover (2) is locked, the two pull rods (14) move leftwards under the driving of the driving mechanism (6), and at the moment, the large-diameter rod in the pull rods (14) moves to the position of the fracture of the lock catch (13), so that the locking state of the locking mechanism (5) is realized; when the hatch cover (2) is turned, the short connecting rod (22) is driven by the driving mechanism (6) to rotate, the short connecting rod (22) drives the long connecting rod (20) to rotate, the long connecting rod (20) drives the turning hinge (15) to turn, and the turning hinge (15) drives the hatch cover (2) to turn.
5. The gear step hatch turnover locking mechanism of claim 1, 2 or 4 wherein: the locking mechanism (5) further comprises three pairs of bolts (16), and the turnover hinge (15) is connected with the hatch cover (2) through the three pairs of bolts (16).
6. The gear transmission step-by-step hatch cover turnover locking mechanism of claim 5, characterized in that: the locking mechanism (5) further comprises three pairs of screws (18), and the fixed hinge (17) is connected with the top of the rear end (3) of the cabin through the three pairs of screws (18).
7. A turnover locking method based on the gear transmission stepping type hatch cover turnover locking mechanism is characterized in that: the gear transmission step type hatch cover overturning and locking method is realized by the following steps,
step one, completing the locking action of the hatch cover (2) by motor driving:
the motor drives the small bevel gear (24) to provide torque, the small bevel gear (24) transmits power to the differential mechanism (25) through the meshing motion with the large bevel gear (23), the differential mechanism (25) drives the transmission shaft (21) to rotate through the gear transmission of the driving cylindrical gear (7) and the driven cylindrical gear (8), and drives the two screw rods (19) to rotate through the gear transmission of the driving bevel gears (9) and the driven bevel gears (10) at the two ends, so that the power is transmitted to the locking mechanism (5);
when the hatch cover (2) is locked, the two pull rods (14) move leftwards under the driving of the driving mechanism (6), at the moment, the large-diameter rod in the pull rods (14) moves to the position of the fracture of the lock catch (13), and the large-diameter rod cannot pass through the fracture on the lock catch (13), so that the locking state of the locking mechanism (5) is realized;
step two, completing the unlocking action of the hatch cover (2) by the motor drive:
when the hatch cover (2) is unlocked, the two pull rods (14) are driven by the driving mechanism (6) to move rightwards, and at the moment, the small-diameter rod in the pull rods (14) moves to the position of the fracture of the lock catch (13), so that the unlocking state of the locking mechanism (5) is realized;
step three, the motor drives to complete the overturning action of the hatch cover (2):
the motor drives the small bevel gear (24) to provide torque, the small bevel gear (24) transmits power to the differential mechanism (25) through meshing motion with the large bevel gear (23), the differential mechanism (25) drives the large bevel gear to rotate after turning, the large bevel gear (23) drives the short connecting rod (22) to rotate, the short connecting rod drives the long connecting rod to rotate, the long connecting rod drives the turnover hinge to achieve turnover motion, and the turnover hinge drives the cabin cover (2) to achieve turnover motion.
The three steps of the gear transmission step-by-step hatch cover overturning and locking mechanism are repeated, and the action of repeatedly locking and unlocking and overturning the hatch cover (2) is realized.
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| CN202111603954.8A CN115432210B (en) | 2021-12-24 | 2021-12-24 | Gear transmission step type hatch cover overturning and locking mechanism and overturning and locking method thereof |
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| CN202111603954.8A CN115432210B (en) | 2021-12-24 | 2021-12-24 | Gear transmission step type hatch cover overturning and locking mechanism and overturning and locking method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116534291A (en) * | 2023-07-05 | 2023-08-04 | 北京未来宇航空间科技研究院有限公司 | Reusable optical calibration hatch cover mechanism and satellite remote sensing camera calibration system |
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| CN115432210B (en) | 2023-03-31 |
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