A horizontal high-speed throwing device based on steel cable winch

Abstract

A horizontal high-speed throwing device based on a steel cable winch comprises a throwing main machine and a lifting and pitching mechanism. The throwing main machine comprises a rolling angle driving mechanism with one end mounted on an outer support and the other end connected to a coupling bracket. The outer support and the coupling bracket are both fixedly connected to the front end of a base. A semi-open annular constraint track and a lifting and lowering elastic baffle of the throwing mechanism are fixed to the base. The base is mounted on a trolley body by screws. A buffer is fixed to the trolley body. A roller group is mounted at the bottom of the trolley body to support and drive the base to move axially along the rail. The trolley body is constrained by two sets of upper limit guide rails mounted on a machine base. A buffer mechanism is mounted at the end of the machine base. The lifting and pitching mechanism comprises a gear rack lifting mechanism. One end of the pitch angle hinge mechanism is connected to a support frame by a double hinge, and the other end is connected to a lifting platform. A rack locking mechanism is fixed to the support frame. The throwing main machine moves axially under the traction of winch drive systems I and II with a wiring function and a follower wheel group.

Description

Technical Field

[0001] The invention relates to a horizontal high-speed throwing device based on a steel cable winch, which is particularly suitable for occasions requiring different throwing angles, different throwing heights and requiring high-speed throwing tests to be achieved in a short time. Background Art

[0002] For some high-speed test pieces used in casting tests, it is often required to reach a certain linear acceleration (≤5G) and sometimes also be able to perform circular motion (maximum centripetal acceleration allowed ≤2G) to meet the adjustment of circumferential casting posture. At the same time, there are also certain speed and casting height requirements.

[0003] Common throwing methods include catapulting, spinning, ball screw and linear guide feeding. Catapulting is subject to linear acceleration and the speed is difficult to control. The spinning method is subject to centripetal acceleration and the rotation diameter needs to be greater than 22000mm. The ball screw and linear guide feeding method generally allow a speed of 1m / s, which cannot meet the required speed requirements. At the same time, the commonly used throwing methods cannot meet the requirements of adjusting different throwing angles. Summary of the invention

[0004] The purpose of the present invention is to provide a horizontal high-speed throwing device based on a steel cable winch to address the deficiencies in the above-mentioned prior art.

[0005] The purpose of the present invention can be achieved by the following technical measures:

[0006] The horizontal high-speed throwing device based on the steel cable winch of the present invention comprises a throwing main machine and a lifting and pitching mechanism. The throwing main machine comprises a rolling angle driving mechanism, one end of which is installed on an outer support through a shaft neck and the other end is connected to a joint bracket through a shaft neck; the outer support and the joint bracket are both fixedly connected to the front end of the base, a lifting elastic baffle is fixedly connected to the rear end of the base, and a semi-open annular constraint track of the throwing mechanism is fixedly installed on the base between the joint bracket and the lifting elastic baffle; the base is installed on the trolley body through a fixed connecting piece, and front and rear buffers are arranged between the trolley body and the base; the bottom of the trolley body cooperates with the left and right rails respectively installed on the machine base through two sets of front and rear roller groups, and the two sides of the trolley body are seated on the left through sliders On the two right upper limit guide rails; buffer mechanisms are installed at the ends of the left and right rails, and the buffer mechanisms are hinged to the upper end of the throwing auxiliary servo electric push rod mechanism through an articulation, and the lower end of the throwing auxiliary servo electric push rod mechanism is combined with the machine base through an articulation; the machine base is fixedly installed on the lifting platform; the front and rear two sets of winch drive systems I and winch drive system II with cable arrangement functions are installed on the machine base in sequence from the front to the rear, and the traction ropes led out from the front and rear winch drive systems are respectively connected to the front and rear ends of the throwing main machine through the driven wheel groups located at the corresponding ends; the front end of the lifting platform is combined with the column located at the front central axis position through the lifting and pitching mechanism, and the rear end is combined with the left and right columns located at the rear through the left and right lifting and pitching mechanisms.

[0007] Furthermore, the roll angle driving mechanism in the present invention is composed of a servo motor, a worm gear transmission device driven by a reducer, and a detection and control part.

[0008] The hoisting drive system II is composed of a hoisting motor, a reducer, a cable arrangement servo motor, a guide rail and a detection part; the casting auxiliary servo electric push rod mechanism is a hydraulic cylinder or a pneumatic cylinder.

[0009] The lifting and pitching mechanism described in the present invention includes support frames respectively installed on the columns and driven by the gear rack lifting mechanism, a rack locking mechanism fixed to the support frame, and a pitch angle hinge mechanism connected to the support frame through a double hinge at one end and connected to the lifting platform at the other end; the support frame can also be connected to the lifting platform through a servo electric push rod mechanism.

[0010] The lifting and pitching mechanism described in the present invention can be realized by adopting the following structure: the lifting and pitching mechanism includes hydraulic cylinders respectively installed on the columns, and a pitch angle hinge mechanism whose one end is connected to the hydraulic cylinder through a double hinge and the other end is connected to the lifting platform; the hydraulic cylinder can also be connected to the lifting platform through a servo electric push rod mechanism.

[0011] The present invention has a position and speed detection system installed on the rail, and detection control sensors installed on the rolling angle drive mechanism and the winch drive mechanism II, which can detect and record the status of the target and the throwing host in real time. The buffer mechanism is provided with a throwing mechanical trigger device to ensure the reliability and safety of the target horizontal high-speed throwing.

[0012] The working principle and beneficial effects of the present invention are as follows:

[0013] The present invention adopts a steel cable winch driving mode, wherein a rolling angle driving mechanism drives a worm gear to a suitable rolling angle of a target suitable for throwing, a constraint track and a lifting elastic baffle of the throwing mechanism fix the target posture, a throwing auxiliary servo electric push rod mechanism adjusts the target to a suitable pitch posture, a gear rack lifting mechanism and a pitch angle hinge mechanism adjust the throwing host to a required suitable height position, and then the throwing host moves rapidly along the axial direction under the traction of the winch driving system I, the winch driving system II and the driven wheel group, and contacts with the buffer mechanism after reaching the required acceleration, and the target is thrown horizontally at a high speed according to the set posture under the action of the inertial force.

[0014] The overall structure of the throwing machine is similar to that of a horizontal dynamic balancing machine. The machine base is installed on a lifting platform, which can adjust the different throwing heights required by the target. The main body of the throwing machine is constrained by two sets of upper limit guide rails installed on the machine base. Different throwing accelerations can be adjusted under the drive of the cable winch, and rollover can be prevented after the movement is in place. The test product is fixed in the middle of the constraint track dedicated to the throwing mechanism. Under the action of the rolling angle drive mechanism, a certain rolling angle can be achieved in the circumferential direction to ensure that the posture of the test product is adjusted to the optimal level. The rolling angle drive mechanism is equipped with a detection control system for detecting the rolling angle. A displacement and speed detection system is set on the rail to detect and record the position and speed of the axial movement of the throwing machine. The winch drive system II is equipped with a detection system for real-time detection and recording of the rotation speed.

[0015] The lifting and pitching mechanism adopts rack and pinion to drive the overall lifting. After lifting into place, it is locked by the rack. The locking is reliable and the whole mechanical system has good rigidity and high reliability.

[0016] Through the above technical measures, the present invention achieves the function of short-track horizontal high-speed throwing by adopting a conventional steel cable winch drive method, effectively solving the difficult problems of different throwing angles, different throwing heights and the need to achieve high-speed throwing tests in a short time. It has a small structural size, good lifting rigidity and a high degree of automation, and can be used in aerospace, aviation, civil and other fields. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is the front view of the horizontal high-speed throwing device.

[0018] Figure 2 It is the left view of the horizontal high-speed throwing device.

[0019] Figure 3 It is a top view of the horizontal high-speed throwing device.

[0020] Figure 4 This is the main view of the casting host.

[0021] Serial numbers in the figure: 1. throwing main machine, 2. lifting and pitching mechanism, 3. rolling angle driving mechanism, 4. journal, 5. outer support, 6. coupling bracket (with energy transfer function), 7. base, 8. throwing mechanism, 9. semi-open annular constraint track, 10. lifting elastic baffle, 11. connecting bracket, 12. buffer, 13. roller group, 14. rail, 15. machine base, 16. upper limit guide rail, 17. buffer mechanism, 18. throwing auxiliary servo electric push rod mechanism, 19. winch drive system I, 20. winch drive system II, 21. driven wheel group, 22. gear rack lifting mechanism, 23. pitch angle hinge mechanism, 24. support frame, 25. lifting platform, 26. rack locking mechanism. DETAILED DESCRIPTION

[0022] The present invention will be further described below in conjunction with embodiments (attached drawings).

[0023] like Figure 1 , 2As shown in Figures 4 and 5, the horizontal high-speed throwing device based on the steel cable winch of the present invention comprises a throwing main machine and a lifting and pitching mechanism. The throwing main machine comprises a rolling angle driving mechanism 3, one end of which is mounted on an outer support 5 through a journal 4 and the other end is connected to a coupling bracket 6 through a journal; the outer support 5 and the coupling bracket 6 are both fixedly connected to the front end of a base 7, a lifting elastic baffle 10 is fixedly connected to the rear end of the base 7, and a semi-open annular constraint track 9 of a throwing mechanism 8 is fixedly installed on the base 7 between the coupling bracket 6 and the lifting elastic baffle 10 (it can form a stable support and constraint structure for the product target and perform posture adjustment at a certain rolling angle); the base 7 is installed on a trolley body 11 through a fixed connecting piece, and front and rear buffers 12 are arranged between the trolley body 11 and the base; the bottom of the trolley body 11 is connected to the left and right rails respectively installed on the machine base 15 through two front and rear roller groups 13 14 cooperates with each other, and both sides of the frame body 11 are seated on the left and right upper limit guide rails 16 through sliders; a buffer mechanism 17 is installed at the end of the left and right rails 14, and the buffer mechanism 17 is hinged to the upper end of the throwing auxiliary servo electric push rod mechanism 18 by an articulated manner, and the lower end of the throwing auxiliary servo electric push rod mechanism 18 is combined with the machine base 15 by an articulated manner; the machine base 15 is fixedly installed on the lifting platform 25; on the machine base 15, two sets of front and rear winch drive systems I 19 and winch drive system II 20 with line arrangement functions are installed in sequence from the front to the back, and the traction ropes led out by the front and rear winch drive systems are connected to the front and rear ends of the throwing main machine through the driven wheel groups 21 located at the corresponding ends; the front end of the lifting platform 25 is combined with the column located at the front central axis position through the lifting and pitching mechanism, and the rear end is combined with the left and right columns located at the rear through the left and right lifting and pitching mechanisms (see Figure 3 , that is, the columns are arranged in a triangle with one in front and two in the back); the lifting and pitching mechanism in the present invention includes support frames 24 respectively mounted on the columns and driven by a gear rack lifting mechanism 22, a rack locking mechanism 26 fixed to the support frame 24, and a pitch angle hinge mechanism 23 with one end connected to the support frame 24 through a double hinge and the other end connected to the lifting platform 25; the support frame 24 can also be connected to the lifting platform 25 through a servo electric push rod mechanism.

[0024] The rack and pinion lifting mechanism 22 and the pitch angle hinge mechanism 23 described in the present invention can adjust the casting height according to the product target requirements, and are locked by the rack locking mechanism 26 after the posture adjustment is completed, so as to ensure the stability and safety of the overall structure.

[0025] Furthermore, the roll angle driving mechanism 3 in the present invention is composed of a servo motor, a worm gear transmission device driven by a reducer, and a detection and control part.

[0026] The hoisting drive system II 20 is composed of a hoisting motor, a reducer, a cable arrangement servo motor, a guide rail and a detection part; the casting auxiliary servo electric push rod mechanism 18 is a hydraulic cylinder or a pneumatic cylinder.

[0027] The present invention has a position and speed detection system installed on the rail, and detection control sensors installed on the rolling angle drive mechanism and the winch drive mechanism II, which can detect and record the status of the target and the throwing host in real time. The buffer mechanism is provided with a throwing mechanical trigger device to ensure the reliability and safety of the target horizontal high-speed throwing.

[0028] The buffer mechanism 17 includes a damping wheel system, which can effectively ensure the safety and reliability of the product target during casting. At the same time, the product target can adjust the pitch angle of the target under the action of the casting auxiliary servo electric push rod mechanism 18. The casting host (casting launch vehicle) moves axially under the traction of the hoisting drive system I 19, the hoisting drive system II 20 and the driven wheel group 21, and the traction speed can be adjusted according to the acceleration required for casting.

Claims

1. A horizontal high-speed throwing device based on a steel cable winch, characterized in that: The throwing device comprises a throwing main machine and a lifting and pitching mechanism. The throwing main machine comprises a rolling angle driving mechanism (3) having one end mounted on an outer support (5) via a journal (4) and the other end connected to a joint bracket (6) via a journal; the support (5) and the joint bracket (6) are both fixedly connected to the front end of a base (7); a lifting elastic baffle (10) is fixedly connected to the rear end of the base (7); a semi-open annular restraining track (9) of the throwing mechanism (8) is fixedly installed on the base (7) between the joint bracket (6) and the lifting elastic baffle (10); the base (7) is mounted on a trolley body (11) via a fixed connecting piece, and front and rear buffers (12) are arranged between the trolley body (11) and the base; the bottom of the trolley body (11) cooperates with left and right steel rails (14) respectively mounted on the machine base (15) via two front and rear roller groups (13); both sides of the trolley body (11) are connected via sliding The block is seated on two groups of upper limit guide rails (16) on the left and right; a buffer mechanism (17) is installed at the ends of the left and right rails (14); the buffer mechanism (17) is hinged to the upper end of the throwing auxiliary servo electric push rod mechanism (18) in an articulated manner, and the lower end of the throwing auxiliary servo electric push rod mechanism (18) is combined with the machine base (15) in an articulated manner; the machine base (15) is fixedly installed on the lifting platform (25); front and rear two sets of hoisting drive systems I (19) and hoisting drive system II (20) with a wiring function are installed on the machine base (15) in sequence from the front to the back, and the traction ropes drawn out from the front and rear hoisting drive systems are respectively connected to the front and rear ends of the throwing main machine through the driven wheel groups (21) located at the corresponding ends; the front end of the lifting platform (25) is combined with the column located at the front central axis position through the lifting and pitching mechanism, and the rear end is combined with the left and right columns located at the rear through the left and right lifting and pitching mechanisms.

2. The horizontal high-speed throwing device based on the steel cable winch according to claim 1 is characterized in that: The rolling angle driving mechanism (3) is composed of a servo motor, a worm gear transmission device driven by a reducer, and a detection control part.

3. The horizontal high-speed throwing device based on the steel cable winch according to claim 1 is characterized in that: The hoisting drive system II (20) is composed of a hoisting motor, a speed reducer, a cable servo motor, a guide rail and a detection part.

4. The horizontal high-speed throwing device based on the steel cable winch according to claim 1 is characterized in that: The casting auxiliary servo electric push rod mechanism (18) is a hydraulic cylinder or a pneumatic cylinder.

5. The horizontal high-speed throwing device based on steel cable winch according to claim 1 is characterized in that: The lifting and pitching mechanism comprises a support frame (24) respectively mounted on a column and driven by a gear rack lifting mechanism (22), a rack locking mechanism (26) fixed to the support frame (24), and a pitch angle hinge mechanism (23) connected to the support frame (24) at one end through a double hinge and connected to a lifting platform (25) at the other end.

6. The horizontal high-speed throwing device based on the steel cable winch according to claim 5 is characterized in that: The support frame (24) is connected to the lifting platform (25) via a servo electric push rod mechanism.

7. The horizontal high-speed throwing device based on a steel cable winch according to claim 1 is characterized in that: The lifting and pitching mechanism comprises hydraulic cylinders respectively installed on the columns, and a pitching angle hinge mechanism (23) having one end connected to the hydraulic cylinder via a double hinge and the other end connected to the lifting platform (25).

8. The horizontal high-speed throwing device based on the steel cable winch according to claim 7 is characterized in that: The hydraulic cylinder is connected to the lifting platform (25) via a servo electric push rod mechanism.

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