Shooting platform assembly for bow and arrow stability test

Abstract

The invention discloses a shooting platform assembly for bow and arrow stability test, which comprises a fixed support main frame, a stretching test mechanism, a bow and arrow body and a PLC controller, the stretching test mechanism is arranged at the top end of the fixed support main frame, and the stretching test mechanism comprises a guide plate and a stretching assembly; the stretching assembly is movably arranged on one side of the guide plate and comprises a moving part, an overhead groove is formed in the middle of one side of the moving part, and a limiting sliding plate is fixedly connected to the side, close to the overhead groove, of the moving part; a threaded hole is formed in the middle of the side, away from the overhead groove, of the limiting sliding plate. The bowstring pulling roller is designed to pull the bowstring, the bowstring is tightly attached to the inner side of the annular clamping groove under the action of pulling force, and when the bowstring shifts, the bowstring pulling roller is driven to rotate, so that the bowstring and the bowstring pulling roller are kept static, direct friction between the bowstring and the bowstring pulling roller is reduced, and abrasion between the bowstring and the bowstring pulling roller is reduced.

Description

Technical Field

[0001] The invention relates to the field of bow and arrow testing, and in particular to a shooting platform component for bow and arrow stability testing. Background Art

[0002] The stability test of bows and arrows is a comprehensive process, involving multiple aspects such as the bow body, bowstring and arrow. Through scientific and comprehensive testing methods, the performance and safety of the bows and arrows can be ensured, providing archers with a stable and reliable shooting experience. In the bow and arrow stability test, the shooting platform is an important testing tool, which is used to simulate the actual shooting environment and evaluate the stability and performance of the bows and arrows under different conditions.

[0003] The string-drawing part of a traditional shooting platform is mostly designed with two pull rods, through which the bowstring is pulled. However, there are differences in the toughness and strength of the two ends of the bow during the manufacturing process. Therefore, when the bowstring is pulled, the bowstring will move slightly toward the end with higher strength. This slight movement does not affect the use. However, during the test, the pull rod continuously pulls and relaxes the bowstring, resulting in continuous displacement between the bowstring and the pull rod, causing continuous friction between the bowstring and the pull rod, thereby damaging the bowstring and causing serious wear of the pull rod. Moreover, the friction will generate heat over time, making it impossible to stretch for a long time. At this time, there is an urgent need for a shooting platform component for bow and arrow stability testing to solve the above problems. Summary of the invention

[0004] The object of the present invention is to provide a shooting platform assembly for bow and arrow stability testing to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a shooting platform assembly for bow and arrow stability testing, comprising a fixed support main frame, a stretching test mechanism, a bow and arrow body and a PLC controller, wherein the stretching test mechanism is arranged at the top of the fixed support main frame, the stretching test mechanism comprises a guide plate and a stretching assembly, the stretching assembly is movably arranged on one side of the guide plate, the stretching assembly comprises a moving component, an overhead groove is provided in the middle of one side of the moving component, a side of the moving component close to the overhead groove is fixedly connected to a limiting sliding plate, a threaded hole is provided in the middle of a side of the limiting sliding plate away from the overhead groove, a fixing piece is fixedly installed on the side of the moving component away from the limiting sliding plate, one end of the fixing piece A support fixing plate is fixedly installed, and an electric push rod is fixedly installed on the middle part of the support fixing plate close to the fixing part, and a support plate is fixedly installed on one end of the fixing part away from the support fixing plate and away from the moving part, a protrusion is fixedly connected to the middle part of the support plate away from the end of the fixing part, and the top and bottom ends of the protrusion are rotatably connected to the steering pull plate respectively, the telescopic end of the electric push rod is rotatably connected to the pull rod, and the end of the pull rod away from the electric push rod is fixedly connected to the connecting plate, the top and bottom ends of the connecting plate are fixedly connected to the support frame respectively, and a string-drawing roller is rotatably connected to the inner side of the support frame, annular grooves are evenly opened on the outer side of the middle part of the string-drawing roller, and anti-slip baffles are fixedly connected to both ends of the string-drawing roller.

[0006] Preferably, the electric push rod is movably inserted in the interior of the fixing member, and the ends of the two steering pull plates away from the protrusion are rotatably connected to the top and bottom ends of the pull rod close to the connecting plate.

[0007] Preferably, the top end and the bottom end of the protrusion on the side away from the steering pull plate are respectively fixedly connected to limit baffles.

[0008] Preferably, the side of the anti-slip baffle close to the annular groove is designed to be arc-shaped.

[0009] Preferably, the PLC controller is fixedly mounted on the tail end of the fixed support main frame, a bow and arrow fixing frame is fixedly mounted on the front end of the fixed support main frame, the bow and arrow body is fixedly mounted on an end of the bow and arrow fixing frame away from the fixed support main frame, and the bowstring of the bow and arrow body is in contact and connected with the inner side of the annular groove.

[0010] Preferably, the guide plate is fixedly mounted on the top of the fixed support main frame, the top of the guide plate is penetrated by a limiting slide groove, one end of the guide plate is fixedly mounted with a first fixed plate, the other end of the guide plate is fixedly mounted with a second fixed plate, a servo motor is fixedly mounted on the middle of a side of the first fixed plate away from the guide plate, an arc slide groove is provided on the inner side of the guide plate at the middle of a side of the limiting slide groove away from the moving part, a threaded drive rod is rotatably connected to the inner side of the guide plate, one end of the threaded drive rod is rotatably connected to an end of the guide plate close to the first fixed plate, the other end of the threaded drive rod is rotatably connected to the second fixed plate, and an end of the threaded drive rod close to the first fixed plate passes through the first fixed plate and is fixedly mounted on the driving end of the servo motor.

[0011] Preferably, the movable component is threadedly connected to the threaded drive rod through the threaded hole, the limiting sliding plate is slidably connected to the inner side of the limiting sliding groove, and the middle part of the side of the limiting sliding plate away from the fixing member is slidably connected to the inner side of the arc-shaped sliding groove.

[0012] Preferably, the PLC controller is electrically connected to the servo motor and the electric push rod respectively.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] The present invention pulls the bowstring by designing a string-drawing roller, and the string-drawing roller is rotatably connected to a supporting frame. Under the action of tension, the bowstring is tightly attached to the inner side of an annular groove. When the bowstring is displaced, the string-drawing roller is driven to rotate, so that the bowstring and the string-drawing roller remain stationary, thereby reducing direct friction between the bowstring and the string-drawing roller, reducing wear of the bowstring and the string-drawing roller, and being able to perform long-term tensile tests. In addition, by designing a plurality of annular grooves on the string-drawing roller, the bowstring can be adapted to bows and arrows of different specifications. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the main three-dimensional structure of the present invention;

[0016] Figure 2 It is a front view of the main body of the present invention;

[0017] Figure 3 It is a schematic diagram of the structure of the tensile testing mechanism in the present invention;

[0018] Figure 4 It is a schematic diagram of the cross-section structure of the tensile testing mechanism in the present invention;

[0019] Figure 5 It is a schematic diagram of the structure of the stretching assembly in the present invention;

[0020] Figure 6 It is a schematic diagram of the structure of the stretching component A in the present invention.

[0021] In the figure: 1-fixed support main frame, 2-tensile testing mechanism, 3-bow and arrow fixing frame, 4-bow and arrow body, 5-PLC controller, 6-guide plate, 7-tensile assembly, 8-limiting slide groove, 9-servo motor, 10-first fixed plate, 11-second fixed plate, 12-arc slide groove, 13-threaded drive rod, 14-moving part, 15-overhead groove, 16-limiting sliding plate, 17-threaded hole, 18-fixing part, 19-support fixing plate, 20-support plate, 21-bump, 22-steering pull plate, 23-electric push rod, 24-pull rod, 25-connecting plate, 26-support frame, 27-string roller, 28-annular slot, 29-anti-slip baffle, 30-limiting baffle. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] See also Figure 1 , Figure 3 , Figure 5 and Figure 6The present invention provides an embodiment: a shooting platform assembly for bow and arrow stability test, comprising a fixed support main frame 1, a stretching test mechanism 2, a bow and arrow body 4 and a PLC controller 5, wherein the stretching test mechanism 2 is arranged at the top of the fixed support main frame 1, the stretching test mechanism 2 comprises a guide plate 6 and a stretching assembly 7, the stretching assembly 7 is movably arranged on one side of the guide plate 6, the stretching assembly 7 comprises a moving part 14, an overhead slot 15 is opened in the middle of one side of the moving part 14, and the inner side of the overhead slot 15 does not contact the outer side of the guide plate 6 , to reduce friction, the side of the moving part 14 close to the overhead slot 15 is fixedly connected to the limited sliding plate 16, and the middle of the limited sliding plate 16 away from the overhead slot 15 is provided with a threaded hole 17, and the side of the moving part 14 away from the limited sliding plate 16 is fixedly installed with a fixing member 18, and one end of the fixing member 18 is fixedly installed with a supporting fixing plate 19, and the middle of the supporting fixing plate 19 close to the fixing member 18 is fixedly installed with an electric push rod 23, and the fixing member 18 is away from one end of the supporting fixing plate 19 and away from the side of the moving part 14 A support plate 20 is fixedly installed, and a protrusion 21 is fixedly connected to the middle of the end of the support plate 20 away from the fixing member 18. The top and bottom ends of the protrusion 21 are respectively rotatably connected to the steering pull plate 22, and the top and bottom ends of the protrusion 21 away from the steering pull plate 22 are respectively fixedly connected to the limit baffle 30. When the steering pull plate 22 is rotated to be close to the limit baffle 30, the steering pull plate 22 and the moving component 14 are in a horizontal state, and the telescopic end of the electric push rod 23 is rotatably connected to the pull rod 24, and the end of the pull rod 24 away from the electric push rod 23 is fixedly connected There is a connecting plate 25, the top and bottom ends of the connecting plate 25 are respectively fixedly connected to a supporting frame 26, the inner side of the supporting frame 26 is rotatably connected to a string-drawing roller 27, and an annular groove 28 is evenly opened on the outer side of the middle part of the string-drawing roller 27. The distances between the bowstrings of bow and arrow bodies 4 of different specifications and the sides of the bow and arrow bodies 4 are different. By setting a plurality of annular grooves 28, it can adapt to bow and arrow bodies 4 of various specifications. The two ends of the string-drawing roller 27 are respectively fixedly connected to anti-slip baffles 29. The design of the anti-slip baffle 29 can prevent the bowstring of the bow and arrow body 4 from falling off.

[0024] See also Figure 5 and Figure 6The electric push rod 23 is movably inserted in the interior of the fixing member 18, and the electric push rod 23 is supported by the moving component 14. The ends of the two steering plates 22 away from the protrusion 21 are respectively rotatably connected to the top and bottom ends of the pull rod 24 close to the connecting plate 25. The two ends of the pull rod 24 are respectively rotatably connected to the telescopic end of the electric push rod 23 and the end of the steering plate 22 away from the protrusion 21. Therefore, when the electric push rod 23 pushes the pull rod 24 to move, the pull rod 24 is pulled by the steering plate 22 to rotate. When the steering plate 22 rotates to be close to the limit baffle 30, the pull rod 24 rotates to be in a vertical state with the moving component 14, so that the string roller 27 and the moving Component 14 is in a vertical state. At this time, when the bowstring of the bow body 4 is hung on the string-drawing roller 27 and is located on the inner side of the annular groove 28, the bowstring of the bow body 4 can be pulled to perform a tensile test. The bowstring of the bow body 4 is continuously tightened and relaxed during the process of continuous stretching and recovery. Moreover, due to the different toughness and strength of the two ends of the bow body of the bow body 4, the bowstring will move to the end with higher strength. In this process, the bowstring of the bow body 4 drives the two string-drawing rollers 27 to rotate, thereby reducing the friction between the bowstring and the string-drawing roller 27, thereby reducing the wear of the bowstring. The anti-slip baffle 29 is designed in an arc shape on the side close to the annular groove 28, and the arc design will not cause wear to the bowstring.

[0025] See also Figure 1 The PLC controller 5 is fixedly installed at the tail end of the fixed support main frame 1, the front end of the fixed support main frame 1 is fixedly installed with a bow and arrow fixing frame 3, the bow and arrow body 4 is fixedly installed at one end of the bow and arrow fixing frame 3 away from the fixed support main frame 1, and the bowstring of the bow and arrow body 4 is in contact with the inner side of the annular groove 28.

[0026] See also Figure 3 and Figure 4 The guide plate 6 is fixedly installed on the top of the fixed support main frame 1, and a limited sliding groove 8 is provided on the top of the guide plate 6. A first fixed plate 10 is fixedly installed on one end of the guide plate 6, and a second fixed plate 11 is fixedly installed on the other end of the guide plate 6. A servo motor 9 is fixedly installed in the middle of the side of the first fixed plate 10 away from the guide plate 6, and an arc-shaped sliding groove 12 is provided on the inner side of the guide plate 6 in the middle of the side of the limiting sliding groove 8 away from the moving part 14. A threaded driving rod 13 is rotatably connected to the inner side of the guide plate 6, and one end of the threaded driving rod 13 is rotatably connected to an end of the guide plate 6 close to the first fixed plate 10, and the other end of the threaded driving rod 13 is rotatably connected to the second fixed plate 11. An end of the threaded driving rod 13 close to the first fixed plate 10 passes through the first fixed plate 10 and is fixedly installed on the driving end of the servo motor 9, and the threaded driving rod 13 is driven to rotate by the driving end of the servo motor 9.

[0027] See also Figure 3The moving part 14 is threadedly connected to the threaded driving rod 13 through the threaded hole 17, the limiting sliding plate 16 is slidably connected to the inner side of the limiting sliding groove 8, and the middle part of the side of the limiting sliding plate 16 away from the fixing part 18 is slidably connected to the inner side of the arc-shaped sliding groove 12. The rotating threaded driving rod 13 pushes the limiting sliding plate 16 to move, and the limiting sliding plate 16 is slidably connected to the inner side of the limiting sliding groove 8 and the arc-shaped sliding groove 12, thereby limiting the moving part 14 and driving the moving part 14 to move.

[0028] See also Figure 1 The PLC controller 5 is electrically connected to the servo motor 9 and the electric push rod 23 through a wiring module.

[0029] Working principle: During use, the bow body 4 is first fixed on the bow fixing frame 3, and then the servo motor 9 is controlled to rotate through the PLC controller 5. The driving end of the servo motor 9 drives the threaded driving rod 13 to rotate. Since the moving part 14 is threadedly connected to the threaded driving rod 13 through the threaded hole 17, the rotation of the threaded driving rod 13 drives the moving part 14 to move. The moving part 14 slides on the inner side of the limiting slide groove 8 through the limiting sliding plate 16 to approach the bow body 4. Then the electric push rod 23 is controlled to extend through the PLC controller 5. The telescopic end of the electric push rod 23 pushes the pull rod 24 to move away from the fixing part 18. Since the end of the pull rod 24 away from the electric push rod 23 is rotated and connected to the steering pull plate 22, the pull rod 24 The movement of one end of the electric push rod 23 causes the pull rod 24 to rotate, and pushes the steering pull plate 22 to rotate until the outer side of the steering pull plate 22 is close to the limit baffle 30. At this time, the pull rod 24 and the connecting plate 25 are in a vertical state with the guide plate 6, and then the servo motor 9 is controlled by the PLC controller 5 to rotate in the opposite direction, driving the moving part 14 away from the bow body 4. The movement of the moving part 14 drives the fixing part 18 to move, thereby driving the connecting plate 25 to move close to the bowstring of the bow body 4. The movement of the connecting plate 25 drives the string roller 27 to move until the bowstring of the bow body 4 is stuck on the inner side of the annular groove 28. Then, the tensile test program is set through the PLC controller 5 according to the factory performance data of the bow body 4, and then the tensile test can be started;

[0030] The stretching test program is started by the PLC controller 5. The PLC controller 5 controls the servo motor 9 to rotate and drive the moving part 14 to move away from the bow body 4. When the length reaches a predetermined length, the PLC controller 5 controls the servo motor 9 to reverse and drive the moving part 14 to move closer to the bow body 4. The stretching test is performed reciprocally. During the stretching process of the bow body 4, the bowstring of the bow body 4 is stuck in the inner side of the annular groove 28. During the stretching and replaying, the bowstring of the bow body 4 is tightly attached to the inner side of the annular groove 28. In addition, the bowstring of the bow body 4 drives the string roller 27 to rotate during the process of continuous tension and relaxation, thereby reducing the friction between the bowstring of the bow body 4 and the string roller 27.

[0031] When it is necessary to launch an arrow, the arrow is mounted on the bow body 4, and the arrow is located between the two string rollers 27. The servo motor 9 is controlled to rotate by the PLC controller 5. The driving end of the servo motor 9 drives the threaded driving rod 13 to rotate, thereby pushing the moving component 14 to the desired position. Then, the electric push rod 23 is controlled to retract by the PLC controller 5. The telescopic end of the electric push rod 23 drives the pull rod 24 to move, and rotates under the pull of the steering pull plate 22. The rotation of the pull rod 24 drives the connecting plate 25 to rotate to a horizontal state with the guide plate 6. At this time, the bowstring of the bow body 4 is disengaged from the inner side of the annular groove 28, and the bow body 4 rebounds to push the arrow to be launched.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A shooting platform assembly for bow and arrow stability testing, comprising a fixed support main frame (1), a tensile testing mechanism (2), a bow and arrow body (4) and a PLC controller (5), characterized in that: The tensile testing mechanism (2) is arranged at the top end of the fixed support main frame (1), and the tensile testing mechanism (2) comprises a guide plate (6) and a tensile assembly (7). The tensile assembly (7) is movably arranged on one side of the guide plate (6). The tensile assembly (7) comprises a moving component (14), and an overhead slot (15) is provided in the middle of one side of the moving component (14). A limited sliding plate (16) is fixedly connected to the side of the moving component (14) close to the overhead slot (15), and a threaded hole (17) is provided in the middle of the side of the limited sliding plate (16) away from the overhead slot (15). A fixing member (18) is fixedly installed on the side of the moving component (14) away from the limited sliding plate (16), and a support fixing plate (19) is fixedly installed on one end of the fixing member (18), and a support fixing plate (19) is fixedly installed in the middle of the side of the support fixing plate (19) close to the fixing member (18). An electric push rod (23), a support plate (20) is fixedly installed on one end of the fixing member (18) away from the support fixing plate (19) and away from the side of the moving member (14), a protrusion (21) is fixedly connected to the middle of the end of the support plate (20) away from the fixing member (18), the top and bottom ends of the protrusion (21) are respectively rotatably connected to a steering pull plate (22), the telescopic end of the electric push rod (23) is rotatably connected to a pull rod (24), the end of the pull rod (24) away from the electric push rod (23) is fixedly connected to a connecting plate (25), the top and bottom ends of the connecting plate (25) are respectively fixedly connected to a support frame (26), the inner side of the support frame (26) is rotatably connected to a string-drawing roller (27), the middle outer side of the string-drawing roller (27) is evenly provided with annular grooves (28), and the two ends of the string-drawing roller (27) are respectively fixedly connected to anti-slip baffles (29).

2. A shooting platform assembly for bow and arrow stability testing according to claim 1, characterized in that: The electric push rod (23) is movably inserted into the interior of the fixing member (18), and the ends of the two steering pull plates (22) away from the protrusion (21) are rotatably connected to the top and bottom ends of the pull rod (24) close to the connecting plate (25).

3. The shooting platform assembly for bow and arrow stability testing according to claim 1, characterized in that: The top end and the bottom end of the protrusion (21) on the side away from the steering pull plate (22) are respectively fixedly connected to a limit stop plate (30).

4. The shooting platform assembly for bow and arrow stability testing according to claim 1, characterized in that: The side of the anti-slip baffle (29) close to the annular clamping groove (28) is designed to be arc-shaped.

5. A shooting platform assembly for bow and arrow stability testing according to claim 4, characterized in that: The PLC controller (5) is fixedly mounted on the rear end of the fixed support main frame (1); a bow and arrow fixing frame (3) is fixedly mounted on the front end of the fixed support main frame (1); the bow and arrow body (4) is fixedly mounted on an end of the bow and arrow fixing frame (3) away from the fixed support main frame (1); and the bowstring of the bow and arrow body (4) is in contact with the inner side of the annular groove (28).

6. The shooting platform assembly for bow and arrow stability testing according to claim 1, characterized in that: The guide plate (6) is fixedly mounted on the top of the fixed support main frame (1); a limiting slide groove (8) is provided through the top of the guide plate (6); a first fixed plate (10) is fixedly mounted on one end of the guide plate (6); a second fixed plate (11) is fixedly mounted on the other end of the guide plate (6); a servo motor (9) is fixedly mounted on the middle part of a side of the first fixed plate (10) away from the guide plate (6); the inner side of the guide plate (6) is located on the limiting slide groove (8) away from the moving component (14) An arc-shaped sliding groove (12) is opened in the middle of one side, and a threaded driving rod (13) is rotatably connected to the inner side of the guide plate (6), one end of the threaded driving rod (13) is rotatably connected to an end of the guide plate (6) close to the first fixed plate (10), and the other end of the threaded driving rod (13) is rotatably connected to the second fixed plate (11), and the end of the threaded driving rod (13) close to the first fixed plate (10) passes through the first fixed plate (10) and is fixedly installed on the driving end of the servo motor (9).

7. A shooting platform assembly for bow and arrow stability testing according to claim 6, characterized in that: The movable component (14) is threadedly connected to the threaded driving rod (13) through the threaded hole (17), the limiting sliding plate (16) is slidably connected to the inner side of the limiting sliding groove (8), and the middle part of the side of the limiting sliding plate (16) away from the fixing member (18) is slidably connected to the inner side of the arc-shaped sliding groove (12).

8. The shooting platform assembly for bow and arrow stability testing according to claim 6, characterized in that: The PLC controller (5) is electrically connected to the servo motor (9) and the electric push rod (23) respectively.

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