Supporting and holding structure

Abstract

The utility model provides a supporting and enclasping structure. The supporting and enclasping structure comprises an enclasping mechanism, the enclasping mechanisms are rotatably mounted on the two sides of the transverse moving mechanism, the supporting mechanism is mounted in the middle of the transverse moving mechanism, and the supporting mechanism and the enclasping mechanisms on the two sides form a circular hoop shape; the enclasping mechanism and the transverse moving mechanism are connected through a transverse moving support in a structural part hinging mode, an electric push rod is connected with the enclasping mechanism and the transverse moving mechanism, and the electric push rod drives the enclasping mechanism to rotate relative to the transverse moving mechanism through stretching out and drawing back; the supporting mechanism is fixed to the transverse moving mechanism through bolts. The multi-direction adjusting device can adapt to multi-direction adjustment of the rocket, and can effectively support the loading rocket; the holding arm mechanism can realize holding in the rocket transportation and erection process, the opening angle of the holding arm mechanism is large in the installation process, a larger space is provided for lifting of the rocket, dead point self-locking can be realized, and the reliability is improved; the structure is compact and the integration level is high.

Description

Technical Field

[0001] The utility model relates to a support and clamping structure, belonging to the technical field of mechanical design. Background Art

[0002] With the rapid development of China's space technology, the "three horizontal and one vertical" launch mode has been widely applied. Under the new situation, the requirements for rocket transportation and erection technology are getting higher and higher, especially for the safe transportation and reliable erection of rockets. It is required that the support and clamping device can support and clamp the front end of the rocket during the rocket transportation process, and can adapt to the clamping of different rockets to a certain extent. During the rocket erection process, it provides guarantee for the rocket launch. Although there are various support and clamping devices at present, most of them adopt fixed-position support and clamping, with low degrees of freedom and insufficient adaptability, and it is impossible to realize the integrated installation of the clamping arms in a small space, the clamping adaptation and the large-angle opening. Content of the Utility Model

[0003] To solve the above technical problems, the utility model provides a support and clamping structure, which can meet the use condition requirements of a small installation space, large clamping and opening angles; realize the functions of flipping, lateral movement adjustment and support during the transportation and erection of the rocket, meet the adjustment in the axial, radial and flipping directions, and meet the requirements of transportation and erection.

[0004] The utility model is achieved through the following technical solutions.

[0005] A support and clamping structure provided by the utility model includes a clamping mechanism; the clamping mechanism is rotatably installed on both sides of a lateral movement mechanism, a support mechanism is installed in the middle of the lateral movement mechanism, and the support mechanism and the clamping mechanisms on both sides form a ring-shaped hoop; the clamping mechanism and the lateral movement mechanism are connected in the form of structural member hinges through a lateral movement bracket, and an electric push rod connects the clamping mechanism and the lateral movement mechanism, and the electric push rod drives the clamping mechanism to rotate relative to the lateral movement mechanism through telescoping; the support mechanism is fixed to the lateral movement mechanism by bolts; the lateral movement mechanism is installed on a ball guide rail and can move along the ball guide rail, and the ball guide rail is connected to the erection frame mounting surface by bolts.

[0006] The clamping mechanism includes a clamping arm, one end of the clamping arm is rotatably installed with a clamping block, the other end of the clamping arm is rotatably installed on the lateral movement mechanism, the clamping arm is an arc-shaped block, a connecting rod is rotatably connected and installed on the arc-shaped back side of the clamping arm, the connecting rod is rotatably connected and installed with a main connecting rod, the main connecting rod is rotatably connected and installed on the lateral movement mechanism, and the electric push rod is connected to the connection position of the connecting rod and the main connecting rod.

[0007] A proximity switch is installed on the clamping block.

[0008] The transverse movement mechanism includes a transverse movement bracket which is fitted and installed on a ball guide rail. An in-place locking rod is installed on the ball guide rail, and the transverse movement bracket is locked by a nut through the in-place locking rod.

[0009] A transverse movement fixed nut is fixed on the transverse movement bracket. A transverse movement screw rod is installed on a fixed seat through a bearing. The fixed seat is fixed to the ball guide rail. A hand wheel is fixed at the end of the transverse movement screw rod. The transverse movement screw rod and the transverse movement fixed nut are in threaded match so that when the transverse movement screw rod rotates, the transverse movement fixed nut displaces along the installation direction of the transverse movement screw rod.

[0010] A proximity switch is installed at a position on the top of the transverse movement bracket close to the clamping mechanism.

[0011] The support mechanism includes a support box body which is installed on an installation frame. The top surface of the support box body is arc-shaped. A plurality of screw jacks are installed at the bottom of the installation frame. The screw jacks are fixed on the transverse movement mechanism and drive the lifting through a lifting connecting rod. A lifting drive motor is fixed on the transverse movement mechanism to drive the lifting connecting rod.

[0012] A transverse movement drive motor is fixed on the support box body. A transverse movement screw rod is installed on the output shaft of the transverse movement drive motor. The transverse movement screw rod is rotatably installed on a bearing support through a bearing. The bearing support is fixed to the support box body. A support nut is sleeved on the transverse movement screw rod to form a lead screw pair structure. The support nut is fixed to the installation frame. A guide rail is also fixed on the installation frame. The support box body is mounted on the guide rail. The direction of the guide rail is the same as that of the transverse movement screw rod.

[0013] A rubber plate is fixed on the arc-shaped surface of the support box body; an inductive proximity switch is installed at the center position of the rubber plate.

[0014] A guide post and guide sleeve are also fixed at the bottom of the installation frame for vertical guiding and limiting. A guide sleeve for the guide post and guide sleeve to pass through is provided on the transverse movement mechanism, and a lower limit proximity switch is installed on the guide sleeve.

[0015] The beneficial effects of the present utility model are as follows: It can adapt to the adjustment in multiple directions of the rocket, and can effectively support the upper-stage rocket; it can realize the clamping during the transportation and erection of the rocket, and the opening angle of the clamping arm mechanism is relatively large during the installation process, providing a larger space for the hoisting of the rocket, and can realize dead point self-locking, improving the reliability; the structure is compact and the integration degree is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of the present utility model;

[0017] Figure 2 is Figure 1 a schematic structural diagram of the clamping mechanism in another posture in

[0018] Figure 3 is Figure 1Schematic structural diagram of the holding arm of the middle holding mechanism;

[0019] Figure 4 is Figure 1 Schematic structural diagram of the middle support mechanism;

[0020] Figure 5 is Figure 1 Schematic structural diagram of the middle transverse movement mechanism;

[0021] Figure 6 is Figure 5 Partial structural diagram from another perspective.

[0022] In the figure: 1 - holding mechanism, 11 - proximity switch, 12 - holding block, 13 - holding arm, 14 - connecting rod, 15 - main connecting rod, 2 - support mechanism, 21 - rubber plate, 22 - support box body, 23 - transverse movement drive motor, 24 - mounting bracket, 25 - screw jack, 26 - guide pillar and guide sleeve, 27 - lifting drive motor, 28 - lifting connecting rod, 29 - lower limit proximity switch, 210 - support nut, 211 - guide rail, 212 - bearing support, 213 - bearing, 214 - transverse movement screw rod, 215 - inductive proximity switch, 3 - transverse movement mechanism, 31 - ball guide rail, 32 - transverse movement bracket, 33 - in - place locking rod, 34 - proximity switch, 35 - transverse movement screw rod, 36 - hand wheel, 37 - fixed seat, 38 - bearing, 39 - transverse movement fixed nut, 4 - electric push rod. Specific implementation mode

[0023] The technical solution of the present utility model will be further described below, but the scope of protection claimed is not limited thereto.

[0024] Embodiment 1

[0025] As Figures 1 to 6 shown, a support and holding structure includes a holding mechanism 1; the holding mechanism 1 is rotatably installed on both sides of the transverse movement mechanism 3, a support mechanism 2 is installed in the middle of the transverse movement mechanism 3, and the support mechanism 2 and the holding mechanisms 1 on both sides form a circular hoop shape; the holding mechanism 1 and the transverse movement mechanism 3 are connected in the form of a structural member hinge through a transverse movement bracket 32, and an electric push rod 4 connects the holding mechanism 1 and the transverse movement mechanism 3, and the electric push rod 4 drives the holding mechanism 1 to rotate relative to the transverse movement mechanism 3 through expansion and contraction; the support mechanism 2 is fixed to the transverse movement mechanism 3 by bolts; the transverse movement mechanism 3 is installed on the ball guide rail 31 and can move along the ball guide rail 31, and the ball guide rail 31 is connected to the erection frame mounting surface by bolts.

[0026] Embodiment 2

[0027] Based on Embodiment 1, the clamping mechanism 1 includes a clamping arm 13. One end of the clamping arm 13 is rotatably installed with a clamping block 12, and the other end of the clamping arm 13 is rotatably installed on the transverse movement mechanism 3. The clamping arm 13 is in an arc shape. A connecting rod 14 is rotatably connected and installed on the arc-shaped back side of the clamping arm 13. The connecting rod 14 is rotatably connected and installed with a main connecting rod 15. The main connecting rod 15 is rotatably connected and installed on the transverse movement mechanism 3. The electric push rod 4 is connected to the connection position of the connecting rod 14 and the main connecting rod 15.

[0028] Further, a proximity switch 11 is installed on the clamping block 12.

[0029] Embodiment 3

[0030] Based on Embodiment 1, the transverse movement mechanism 3 includes a transverse movement bracket 32. The transverse movement bracket 32 is fitted and installed on the ball guide rail 31. An in-place locking rod 33 is installed on the ball guide rail 31. The in-place locking rod 33 locks the transverse movement bracket 32 through a nut.

[0031] Further, a transverse movement fixed nut 39 is fixed on the transverse movement bracket 32. A transverse movement screw rod 35 is installed on a fixed seat 37 through a bearing 38. The fixed seat 37 is fixed to the ball guide rail 31. A hand wheel 36 is fixed to the end of the transverse movement screw rod 35. The transverse movement screw rod 35 and the transverse movement fixed nut 39 are thread-matched so that when the transverse movement screw rod 35 rotates, the transverse movement fixed nut 39 displaces along the installation direction of the transverse movement screw rod 35.

[0032] Further, a proximity switch 34 is installed at a position on the top of the transverse movement bracket 32 close to the clamping mechanism 1.

[0033] Embodiment 4

[0034] Based on Embodiment 1, the support mechanism 2 includes a support box body 22. The support box body 22 is installed on the installation frame 24. The top surface of the support box body 22 is arc-shaped. A plurality of screw jacks 25 are installed at the bottom of the installation frame 24. The screw jacks 25 are fixed on the transverse movement mechanism 3 and are driven to lift through a lifting connecting rod 28. A lifting drive motor 27 is fixed on the transverse movement mechanism 3 to drive the lifting connecting rod 28.

[0035] Further, a transverse movement drive motor 23 is fixed on the support box body 22. A transverse movement screw rod 214 is installed on the output shaft of the transverse movement drive motor 23. The transverse movement screw rod 214 is rotatably installed on a bearing support 212 through a bearing 213. The bearing support 212 is fixed to the support box body 22. A support nut 210 is sleeved on the transverse movement screw rod 214 to form a lead screw pair structure. The support nut 210 is fixed to the installation frame 24. A guide rail 211 is also fixed on the installation frame 24. The support box body 22 is erected on the guide rail 211. The guide rail 211 and the transverse movement screw rod 214 are in the same direction.

[0036] Further, a rubber plate 21 is fixed on the arc surface of the support box body 22; an inductive proximity switch 215 is installed at the center position of the rubber plate 21.

[0037] Further, a guide pillar and guide sleeve 26 is also fixed at the bottom of the mounting frame 24 for vertical guiding and limiting. There is a guide sleeve on the transverse movement mechanism 3 for the guide pillar and guide sleeve 26 to pass through, and a lower limit proximity switch 29 is installed on the guide sleeve.

[0038] Embodiment 5

[0039] Based on the above embodiments, the clamping mechanism 1 and the transverse movement mechanism 3 are connected through a transverse movement bracket 32, and are connected in the form of articulated structural members; the support mechanism 2 and the transverse movement mechanism 3 are connected by bolts; the transverse movement mechanism 3 is fixed to move on the ball guide rail 31, and the ball guide rail 31 is connected to the erection frame mounting surface by bolts; the electric push rod 4 connects the clamping mechanism 1 and the transverse movement mechanism 3, and drives the clamping mechanism 1 to rotate around the fixed point of the transverse movement mechanism 3 through telescoping.

[0040] The clamping mechanism 1 is composed of a proximity switch 11, a clamping block 12, a clamping arm 13, a connecting rod 14, and a main connecting rod 15. The proximity switch 11 is connected to the clamping block 12 by bolts, the clamping block 12 is articulated with the clamping arm 13 through a connecting pin shaft, and the clamping arm 13, the main connecting rod 15 and the connecting rod 14 are articulated through a connecting shaft.

[0041] The support mechanism 2 mainly consists of a rubber plate 21, a support box body 22, a transverse movement driving motor 23, a mounting frame 24, a screw jack 25, a guide pillar and guide sleeve 26, a lifting driving motor 27, a lifting connecting rod 28, a lower limit proximity switch 29, a support nut 210, a guide rail 211, a bearing support 212, a bearing 213, a transverse movement screw rod 214, and an inductive proximity switch 215. The support mechanism 2 adopts two screw jacks 25 and a set of guide pillar and guide sleeve 26. The lifting driving motor 27 is fixed to the transverse movement mechanism 3 by bolts. The screw jack 25 is connected to the transverse movement mechanism 3 and the mounting frame 24 by bolts. The guide pillar and guide sleeve 26 are connected to the mounting frame 24 by bolts. The support box body 22 and the support nut 210 are connected to the mounting frame 24 by bolts. The transverse movement driving motor 23 and the bearing support 212 are connected to the support box body 22 by bolts. The rubber plate 21 is bonded to the support box body 22. The inductive proximity switch 215 is installed on the support box body 22. The transverse movement driving motor 23 works to drive the transverse movement screw rod 214 to rotate, driving the support box body 22 to move. The lifting connecting rod 28 drives the screw jack 25 to work, driving the mounting frame 24 to move up and down.

[0042] The transverse movement mechanism 3 mainly consists of ball rails 31, transverse movement brackets 32, in-place locking rods 33, proximity switches 34, transverse movement screws 35, handwheels 36, fixed seats 37, bearings 38, and transverse movement fixed nuts 39. The left and right ball rails 31 connect the vertical frame and the transverse movement brackets 32 through bolts. The in-place locking rods 33 lock the transverse movement brackets 32 through nuts. The proximity switches 34 are fixed to the transverse movement brackets 32 with screws. The handwheels 36 are connected to the transverse movement screws 35. The transverse movement screws 35 cooperate with the transverse movement fixed nuts 39 for transmission. The transverse movement fixed nuts 39 are fixed to the transverse movement brackets 32. The bearings 38 are installed on the fixed seats 37. When the handwheels 36 rotate, they drive the transverse movement screws 35 to rotate, driving the transverse movement fixed nuts 39 to move transversely.

[0043] The electric push rod 4 is hinged to the clamping mechanism 1 and the transverse movement mechanism 3 through pin shafts. The telescopic movement of the electric push rod drives the clamping mechanism to rotate around the fixed point of the transverse movement bracket, thereby realizing the clamping and releasing of the rocket.

[0044] Generally, the specific actual usage method is as follows:

[0045] 1) Hoist the entire support and clamping device to the corresponding installation position on the erection frame, tighten the bolts to fix the support and clamping device, and adjust the support mechanism to descend to the proximity switch induction of the support lower limit.

[0046] 2) The electric push rod works and retracts to the in-place position, enabling the clamping mechanism to fully open to the proximity switch induction of the open position.

[0047] 3) After the rocket is hoisted onto the erection frame, according to the actual situation of the rocket, rotate the handwheel to move the support and clamping mechanism back and forth to the appropriate clamping position, and lock the in-place locking rod.

[0048] 3) The transverse movement drive motor works to adjust the left and right movement of the support mechanism, so that the support mechanism is centered and fitted with the rocket center line.

[0049] 4) The electric push rod extends to drive the clamping mechanism to clamp until the proximity switch on the clamping block senses the clamping.

[0050] 5) When the rocket is in the erected state, before the erection frame tilts backward, the electric push rod retracts to drive the clamping mechanism to open. When the erection frame tilts backward, when the erection frame returns to hold, the felt of the support mechanism contacts the rocket surface, and the proximity switch of the support zero position senses. The electric push rod extends to drive the clamping mechanism to clamp until the proximity switch on the clamping block senses the clamping.

[0051] Therefore, for this utility model:

[0052] 1. The cooperation of the elevator and the guide pillar and guide sleeve is adopted to realize the lifting, adapting to the adjustment of the rocket in the up and down direction. The drive motor drives the left and right movement of the support mechanism box body, which can adapt to the adjustment in the left and right direction. The cooperation of the handwheel, screw nut and ball rail realizes the front and back movement of the support and clamping device, which can adapt to the adjustable front and back clamping positions of the rocket.

[0053] 2. Adopt a large-angle bracket structure, which can effectively support the upper-stage rocket;

[0054] 3. Adopt a symmetric clamping mechanism, which can realize clamping during the transportation and erection of the rocket. The opening angle of the clamping arm mechanism is relatively large during the installation process, providing a larger space for the hoisting of the rocket;

[0055] 4. Adopt an inductive proximity switch for signal feedback of the in-place state to achieve precise control of the support and clamping of the rocket;

[0056] 5. Utilize the characteristics of the dead point of the linkage mechanism to achieve dead point self-locking and improve reliability;

[0057] 6. Compact structure and high integration.

Claims

1. A support and clamping structure, comprising a clamping mechanism (1), characterized in that: The clamping mechanism (1) is rotatably installed on both sides of the transverse movement mechanism (3). A support mechanism (2) is installed in the middle of the transverse movement mechanism (3). The support mechanism (2) and the clamping mechanisms (1) on both sides form a circular hoop shape. The clamping mechanism (1) and the transverse movement mechanism (3) are connected in the form of a structural hinge through a transverse movement bracket (32). An electric push rod (4) is connected to the clamping mechanism (1) and the transverse movement mechanism (3). The electric push rod (4) drives the clamping mechanism (1) to rotate relative to the transverse movement mechanism (3) through telescoping. The support mechanism (2) is fixed to the transverse movement mechanism (3) by bolts. The transverse movement mechanism (3) is installed on the ball guide rail (31) and can move along the ball guide rail (31). The ball guide rail (31) is connected to the erection frame mounting surface by bolts.

2. The supporting and clamping structure according to claim 1, characterized in that: The clamping mechanism (1) includes a clamping arm (13). A clamping block (12) is rotatably installed at one end of the clamping arm (13). The other end of the clamping arm (13) is rotatably installed on the transverse movement mechanism (3). The clamping arm (13) is an arc-shaped block. A connecting rod (14) is rotatably connected and installed on the arc-shaped back side of the clamping arm (13). The connecting rod (14) is rotatably connected and installed with a main connecting rod (15). The main connecting rod (15) is rotatably connected and installed on the transverse movement mechanism (3). The electric push rod (4) is connected to the connection position of the connecting rod (14) and the main connecting rod (15).

3. The supporting and clamping structure according to claim 2, characterized in that: Proximity switches (11, 34) are installed on the clamping block (12).

4. The supporting and clamping structure according to claim 1, characterized in that: The transverse movement mechanism (3) includes a transverse movement bracket (32). The transverse movement bracket (32) is fitted and installed on the ball guide rail (31). A positioning and locking rod (33) is installed on the ball guide rail (31). The positioning and locking rod (33) locks the transverse movement bracket (32) through a nut.

5. The supporting and clamping structure according to claim 4, wherein: A transverse movement fixed nut (39) is fixed on the transverse movement bracket (32). A transverse movement screw rod (35, 214) is installed on a fixed seat (37) through bearings (38, 213). The fixed seat (37) is fixed to the ball guide rail (31). A hand wheel (36) is fixed to the end of the transverse movement screw rod (35, 214). The transverse movement screw rod (35, 214) and the transverse movement fixed nut (39) are thread-matched so that when the transverse movement screw rod (35, 214) rotates, the transverse movement fixed nut (39) displaces along the installation direction of the transverse movement screw rod (35, 214).

6. The supporting and clamping structure according to claim 4, wherein: Proximity switches (11, 34) are installed at the position of the top of the transverse movement bracket (32) close to the clamping mechanism (1).

7. The supporting and clamping structure according to claim 1, characterized in that: The support mechanism (2) includes a support box body (22). The support box body (22) is installed on an installation frame (24). The top surface of the support box body (22) is arc-shaped. A plurality of screw jacks (25) are installed at the bottom of the installation frame (24). The screw jacks (25) are fixed on the transverse movement mechanism (3) and drive the lifting through a lifting connecting rod (28). A lifting drive motor (27) is fixed on the transverse movement mechanism (3) to drive the lifting connecting rod (28).

8. The supporting and clamping structure according to claim 7, characterized in that: A transverse movement drive motor (23) is fixed on the support box body (22). A transverse movement screw rod (35, 214) is installed on the output shaft of the transverse movement drive motor (23). The transverse movement screw rod (35, 214) is rotatably installed on a bearing support (212) through bearings (38, 213). The bearing support (212) is fixed to the support box body (22). A support nut (210) is sleeved on the transverse movement screw rod (35, 214) to form a lead screw pair structure. The support nut (210) is fixed to the mounting frame (24). A guide rail (211) is also fixed on the mounting frame (24). The support box body (22) is mounted on the guide rail (211). The guide rail (211) and the transverse movement screw rod (35, 214) are in the same direction.

9. The supporting and clamping structure according to claim 8, wherein: A rubber plate (21) is fixed on the arc surface of the support box body (22); an inductive proximity switch (215) is installed at the center position of the rubber plate (21).

10. The support and clamping structure according to claim 7, wherein: A guide pillar and guide sleeve (26) is also fixed at the bottom of the mounting frame (24) for vertical guiding and limiting. There is a guide sleeve on the transverse movement mechanism (3) for the guide pillar and guide sleeve (26) to pass through. A lower limit proximity switch (29) is installed on the guide sleeve.

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