A crane anti-rail clamping detection device

Abstract

The invention discloses a crane anti-rail clamping detection device, comprising a ground rail, a crane, a shell at the lower end of the crane, and a roller in the shell; a rectangular groove is provided on the shell, a transverse groove is provided on the rectangular groove, a cylindrical groove is provided on the transverse groove, a rotating shaft is provided between the two cylindrical grooves, a rotating block is provided on the rotating shaft, and a longitudinal rod is hingedly connected to the left and right ends of the rotating block respectively; protrusions are provided at both ends of the rotating shaft, a fixed shaft is provided at the outer end of the protrusion, a transverse rod is provided on the fixed shaft, and a vibration device is provided on the transverse rod, and the vibration device drives the transverse rod to move left and right; a trigger device is provided at a position of the transverse groove away from the open end of the rectangular groove, the trigger device is connected to the driving device via a circuit, when the protrusion slides in the transverse groove, the vibration device drives the transverse rod to move left and right without activating the trigger device; when the protrusion rotates in the cylindrical groove, the transverse rod no longer moves left and right and the trigger device is activated, so that the driving device drives the crane to move in the opposite direction. The invention solves the problems that the crane cannot detect foreign objects in advance and is easy to clamp obstacles when running on the ground rail.

Description

Technical Field

[0001] The invention belongs to the field of detection technology, and in particular relates to a crane anti-rail clamping detection device. Background Art

[0002] Some existing cranes move by rolling rollers along floor rails. During the process of lifting and transporting goods within a workshop, due to the complex production environment, various equipment parts and tools cannot be cleaned and stored in a timely manner. Small stones, ropes, parts, and tools are inevitably found on the floor rails. If the rollers press against obstacles, the crane will tilt, which can easily lead to roller derailment or damage to the rails. Especially when moving goods while hoisting, if the crane continues to move despite deflection, it will generate a strong clamping force, trapping the obstacle between the floor rail and the rollers until it is clamped or the resistance becomes too great, causing serious damage. Without obstacle detection devices, it is impossible to predict potential dangers. Detection devices such as distance sensors can only detect obstacles and issue alarms, but they cannot automatically eliminate dangers or take preventive measures. Summary of the Invention

[0003] The purpose of the present invention is to propose a crane anti-rail clamping detection device in order to solve the problem that a crane cannot detect foreign objects in advance and is prone to clamping obstacles when running on a ground rail.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] A crane anti-rail clamping detection device comprises two parallel ground rails, a crane is provided on the ground rails, a shell is provided at the lower end of the crane, a roller is provided in the shell, and the roller moves left and right on the ground rails; rectangular grooves are provided on the left and right end faces of the shell, and horizontal grooves in the left and right directions are provided on the upper and lower inner sides of the rectangular grooves, and a cylindrical groove connected to the horizontal groove is provided near the open end of the rectangular groove, and a rotating shaft is provided between the two corresponding cylindrical grooves at the front and rear, and a rotating block is fixed on the rotating shaft, and a longitudinal rod is hinged to the left and right ends of the rotating block respectively; the same side ends of the two longitudinal rods are hinged by a connecting rod to form a parallelogram; a convex block is fixed to the front and rear ends of the rotating shaft, and the left and right end faces of the convex block are arc surfaces that fit the inner edge surface of the cylindrical groove, so that the convex block can rotate in the cylindrical groove, and the convex block can rotate in the cylindrical groove. The front and rear end surfaces are planes connecting the corresponding edges of the left and right arc surfaces. The distance between the two planes is equal to the distance between the front and rear inner sides of the transverse groove. When the protrusion rotates to make the plane parallel to the front and rear inner sides of the transverse groove, the protrusion can slide in the transverse groove; a fixed shaft is fixed coaxially to the outer end of the protrusion, and a transverse bar that moves left and right in the transverse groove is hinged on the fixed shaft. A vibration device is connected to the transverse bar, and the vibration device drives the transverse bar to move left and right; a trigger device is provided at a position of the transverse groove away from the open end of the rectangular groove, and the trigger device is connected to the drive device via a circuit. When the protrusion slides in the transverse groove, the vibration device drives the transverse bar to move left and right without activating the trigger device; when the protrusion rotates in the cylindrical groove, the transverse bar no longer moves left and right and the trigger device is activated, so that the drive device drives the crane to move in the opposite direction.

[0006] As a further description of the above technical solution:

[0007] The driving device includes a motor, which is fixed outside the shell and drives the roller to rotate.

[0008] As a further description of the above technical solution:

[0009] The left and right ends of the rotating block are fixed with hinge ears, and the longitudinal rod is hinged to the rotating block via the hinge ears.

[0010] As a further description of the above technical solution:

[0011] The vibration device includes a vibrator, a first spring and a rectangular block; a first groove is opened on the front and rear sides of the rectangular groove and is placed below the transverse groove and connected to the transverse groove; a vibrator is provided in the first groove at a position away from the open end of the rectangular groove; a rectangular block is provided on the cross bar and is placed in the first groove; a first spring is provided between the vibrator and the rectangular block.

[0012] As a further description of the above technical solution:

[0013] The trigger device includes a slider; a slider that moves back and forth is provided in front of the position of the transverse groove away from the open end of the rectangular groove, and the rear end surface of the slider is an inclined surface inclined backward in the direction away from the transverse groove; a reverse switch is provided behind the position of the transverse groove away from the open end of the rectangular groove, and the reverse switch is connected to the drive device through the circuit. When the reverse switch is activated, the drive device is triggered to drive the crane to move in the reverse direction.

[0014] As a further description of the above technical solution:

[0015] The rectangular groove is provided with a second groove on the front and rear sides thereof, which is connected to the position of the transverse groove away from the open end of the rectangular groove. The reverse switch is placed at the rear of the second groove and faces forward. The slider is placed at the front of the second groove and its inclined end faces backward. A second spring is provided between the slider and the front inner side of the second groove.

[0016] As a further description of the above technical solution:

[0017] The protrusion is provided with a first permanent magnet, and the shell is provided with a second permanent magnet placed on the inner end of the cylindrical groove. The first permanent magnet and the second permanent magnet attract each other so that the protrusion tends to approach the moving direction of the crane.

[0018] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0019] (1) The present invention, by providing a vertical rod and a rotating block, can detect the obstruction of an obstacle in advance when there is one, and take measures to move the crane in the opposite direction in time to avoid the risk of derailment;

[0020] (2) When the present invention detects an obstacle, the crane moves in the reverse direction to eliminate the risk. After the rollers separate from the obstacle, the crane automatically attempts to continue moving forward. If the obstacle has been removed, the crane continues to move in the original direction. If the obstacle has not been removed in time, when the vertical pole hits the obstacle again, the crane repeats the process of moving in the reverse direction, and then repeats the attempt to continue moving forward. Through multiple attempts, the problem is completely solved until the foreign object is removed.

[0021] (3) The present invention provides a first permanent magnet on the protrusion, and a second permanent magnet disposed on the inner end of the cylindrical groove on the shell. The first permanent magnet and the second permanent magnet attract each other, so that the crane will not move in the opposite direction due to a small wind, causing the crane to be unable to move normally. After the protrusion rotates, the first permanent magnet and the second permanent magnet attract each other, causing the protrusion to tend to move toward the direction of movement of the crane, so that the protrusion quickly returns to a horizontal position. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0023] Figure 2 for Figure 1 Middle A is a partial enlarged view;

[0024] Figure 3 It is a left side view of the present invention;

[0025] Figure 4 for Figure 3 Middle B is a partial enlarged view;

[0026] Figure 5 It is a schematic diagram of the internal three-dimensional structure of the present invention;

[0027] Figure 6 for Figure 5 A top view of the internal structure;

[0028] Figure 7 for Figure 6 Middle C is a partial enlarged view;

[0029] Figure 8 for Figure 6 Middle DD section view;

[0030] Figure 9 for Figure 8 Middle EE cross-sectional view;

[0031] Figure 10 for Figure 8 Middle FF cross-sectional view;

[0032] Figure 11 for Figure 10 The state diagram of the middle convex block 10 after rotation;

[0033] Figure 12 A three-dimensional diagram showing the positional relationship among the rectangular groove 4, the transverse groove 5, and the cylindrical groove 6;

[0034] Figure 13 is a perspective view of the crossbar 12;

[0035] Figure 14 It is a three-dimensional diagram of the rotating shaft 7 and the rotating block 8. DETAILED DESCRIPTION

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making any creative efforts shall fall within the scope of protection of the present invention.

[0037] See also Figure 1-14 The present invention provides a technical solution for a crane anti-rail clamping detection device:

[0038] A crane anti-rail clamping detection device includes two parallel ground rails 1. A crane 2 is provided on the ground rails 1. A housing 3 is provided at the lower end of the crane 2. A roller 15 is provided in the housing 3. The roller 15 moves left and right on the ground rails 1.

[0039] The housing 3 has rectangular slots 4 on both its left and right end faces. Transverse slots 5 are formed on both its upper and lower inner sides, extending in the left and right directions. A cylindrical slot 6 is formed on the transverse slot 5 near the open end of the rectangular slot 4, communicating with the transverse slot 5. A rotating shaft 7 is located between the two corresponding cylindrical slots 6, and a rotating block 8 is fixed to the rotating shaft 7. The rotating block 8 has hinged ears 16 fixed to its left and right ends, and a longitudinal rod 9 is hinged to the rotating block 8 via the hinged ears 16. A longitudinal rod 9 is hinged to each of the left and right ends of the rotating block 8; the ipsilateral ends of the two longitudinal rods 9 are hingedly connected by a connecting rod 14 to form a parallelogram.

[0040] A protrusion 10 is fixed to the front and rear ends of the rotating shaft 7. The left and right end surfaces of the protrusion 10 are arc surfaces that fit the inner edge surface of the cylindrical groove 6, so that the protrusion 10 can rotate in the cylindrical groove 6. The front and rear end surfaces of the protrusion 10 are planes connecting the corresponding edges of the left and right arc surfaces. The distance between the two planes is equal to the distance between the front and rear inner sides of the transverse groove 5. A first permanent magnet 25 is provided in the protrusion 10, and a second permanent magnet 26 is provided on the housing 3 and is placed on the inner end of the cylindrical groove 6. The first permanent magnet 25 and the second permanent magnet 26 attract each other so that the protrusion 10 tends to approach the moving direction of the crane 2; when the protrusion 10 rotates so that the plane is parallel to the front and rear inner sides of the transverse groove 5, the protrusion 10 can slide in the transverse groove 5.

[0041] A fixed shaft 11 is coaxially fixed to the outer end of the protrusion 10, and a cross bar 12 is hinged on the fixed shaft 11 and is placed in the cross groove 5 and moves left and right. A vibration device is connected to the cross bar 12, and the vibration device includes a vibrator 17, a first spring 18 and a rectangular block 19; a first groove 20 is opened on the front and rear sides of the rectangular groove 4 and is placed below the cross groove 5 and connected to the cross groove 5. A vibrator 17 is provided in the first groove 20 at a position away from the open end of the rectangular groove 4, and a rectangular block 19 is provided on the cross bar 12 and is placed in the first groove 20. A first spring 18 is provided between the vibrator 17 and the rectangular block 19; the vibration device drives the cross bar 12 to move left and right.

[0042] A trigger device is provided at a position of the transverse groove 5 away from the open end of the rectangular groove 4, and the trigger device includes a slider 21; a slider 21 that moves back and forth is provided in front of the position of the transverse groove 5 away from the open end of the rectangular groove 4, and the rear end surface of the slider 21 is an inclined surface inclined backward in the direction away from the transverse groove 5; a reverse switch 22 is provided behind the position of the transverse groove 5 away from the open end of the rectangular groove 4, and the reverse switch 22 is connected to the drive device through a circuit. When the reverse switch 22 is activated, the drive device is triggered to drive the crane 2 to move in the reverse direction.

[0043] The trigger device is connected to a drive device via a circuit. The drive device includes a motor 13, which is fixed to the outside of the housing 3 and drives the roller to rotate. When the protrusion 10 slides within the transverse groove 5, the vibration device drives the crossbar 12 to move left and right without activating the trigger device. When the protrusion 10 rotates within the cylindrical groove 6, the crossbar 12 no longer moves left and right and the trigger device is activated, causing the drive device to drive the crane 2 to move in the opposite direction. The rectangular groove 4 has a second groove 23 formed on its front and rear sides, connected to the transverse groove 5 away from the open end of the rectangular groove 4. The reverse switch 22 is located at the rear of the second groove 23 and faces forward. The slider 21 is located at the front of the second groove 23 with its inclined end facing backward. A second spring 24 is provided between the slider 21 and the front inner side of the second groove 23.

[0044] Working principle:

[0045] The vibrator 17, the reverse switch 22 connected to the driving device via the circuit, and the circuit used in the present invention are all prior arts and will not be described in detail.

[0046] During normal use, the crane 2 is driven by the driving device to move left and right. During movement, the vibration device drives the crossbar 12 to move left and right. One end of the crossbar 12 continuously strikes the inclined surface at the upper end of the slider 21, preventing the slider 21 from contacting the reverse switch 22. The other end of the crossbar 12 drives the protrusion 10 to repeatedly enter and exit the transverse groove 5.

[0047] When the roller 15 of the crane 2 rolls on the ground rail 1 and encounters an obstacle or other abnormal situation, the longitudinal rod 9 is subjected to a non-horizontal force, causing the longitudinal rod 9 to tend to move. When the protrusion 10 enters the cylindrical groove 6, the longitudinal rod 9 moves, driving the rotating block 8 and the rotating shaft 7 to rotate, causing the protrusion 10 to rotate in the cylindrical groove 6. At this time, although the vibrator 17 is still vibrating, the crossbar 12 no longer moves left and right and moves away from the slider 21. The slider 21 moves backward under the action of the second spring 24 and contacts the reverse switch 22. The reverse switch 22 transmits an electrical signal to the drive device through the circuit, and the drive device drives the crane 2 to move in the opposite direction. When the longitudinal rod 9 separates from the obstacle, the left and right longitudinal rods 9 on the rotating block 8 The rotating block 8 is balanced left and right, and the protrusion 10 is rotated toward the moving direction of the crane 2. When the protrusion 10 rotates to the moving direction of the crane 2, under the action of the vibrator 17 and the first spring 18, the cross bar 12 moves left and right, continuing to drive the protrusion 10 in and out of the transverse groove 5, and the other end of the cross bar 12 begins to continuously hit the inclined surface on the slider 21, causing the slider 21 to separate from the reverse switch 22. The driving device drives the crane 2 to attempt forward movement. If the obstacle has been removed, the crane 2 continues to move forward. If the obstacle has not been removed in time, when the longitudinal bar 9 hits the obstacle again, the above-mentioned process of crane 2 moving in the reverse direction is repeated, and then the above-mentioned process of attempting forward movement is repeated again.

[0048] It is worth noting that the left and right longitudinal rods 9 on the rotating block 8 of the present invention balance the rotating block 8 left and right, so that the rotating block 8 can be rotated with a very small force, thereby preventing the crane 2 from being forced to move and causing the roller 15 to press against an obstacle, thereby avoiding derailment; however, in order to prevent the device from being too sensitive and causing the rotating block 8 to rotate due to a small breeze, and in order to enable the rotating block 8 to recover quickly after rotation without affecting normal use, the present invention provides a first permanent magnet 25 on the protrusion 10, and a second permanent magnet 26 on the shell 3, which is arranged at the inner end of the cylindrical groove 6. The first permanent magnet 25 and the second permanent magnet 26 attract each other, so that the crane 2 will not move in the opposite direction due to a small wind, resulting in the crane 2 being unable to move normally; after the protrusion 10 rotates, the first permanent magnet 25 and the second permanent magnet 26 attract each other, so that the protrusion 10 tends to approach the moving direction of the crane 2, so that the protrusion 10 quickly recovers to a state where it can enter and exit the transverse groove 5.

[0049] It is worth noting that when the protrusion 10 rotates so that the plane is parallel to the front and rear inner side surfaces of the transverse groove 5 , they are approximately coplanar, but there is actually a gap to meet the sliding requirements of the protrusion 10 in the transverse groove 5 .

[0050] The above description is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Those skilled in the art can make equivalent replacements or changes based on the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, and all of these should be covered by the protection scope of the present invention.

Claims

1. A crane anti-rail clamping detection device, characterized in that: The invention comprises two parallel ground rails (1), wherein a crane (2) is arranged on the ground rail (1), a housing (3) is arranged at the lower end of the crane (2), a roller (15) is arranged in the housing (3), and the roller (15) moves left and right on the ground rail (1); rectangular grooves (4) are respectively provided on the left and right end faces of the housing (3), and horizontal grooves (5) are respectively provided on the upper and lower inner sides of the rectangular groove (4) in the left and right directions, and a cylindrical groove (6) is provided on the horizontal groove (5) at a position close to the opening end of the rectangular groove (4) and connected to the horizontal groove (5). A rotating shaft (7) is provided between two corresponding cylindrical grooves (6) at the front and rear ends, a rotating block (8) is fixed on the rotating shaft (7), and a longitudinal rod (9) is hinged at the left and right ends of the rotating block (8); the same side ends of the two longitudinal rods (9) are hinged by a connecting rod (14) to form a parallelogram; a convex block (10) is fixed at both the front and rear ends of the rotating shaft (7), and the left and right end surfaces of the convex block (10) are arc surfaces that fit the inner edge surface of the cylindrical groove (6), so that the convex block (10) can rotate in the cylindrical groove (6). The front and rear end surfaces of the protrusion (10) are planes connecting the corresponding sides of the left and right arc surfaces, and the distance between the two planes is equal to the distance between the front and rear inner sides of the transverse groove (5). When the protrusion (10) rotates so that the plane is parallel to the front and rear inner sides of the transverse groove (5), the protrusion (10) can slide in the transverse groove (5); a fixed shaft (11) is fixed coaxially to the outer end of the protrusion (10), and a cross bar (12) is hinged on the fixed shaft (11) and is placed in the transverse groove (5) and moves left and right. A vibration device is connected, and the vibration device drives the cross bar (12) to move left and right; a trigger device is provided at a position of the cross groove (5) away from the open end of the rectangular groove (4), and the trigger device is connected to the driving device via a circuit. When the protrusion (10) slides in the cross groove (5), the vibration device drives the cross bar (12) to move left and right without activating the trigger device; when the protrusion (10) rotates in the cylindrical groove (6), the cross bar (12) no longer moves left and right and the trigger device is activated, so that the driving device drives the crane (2) to move in the opposite direction.

2. A crane anti-rail clamping detection device according to claim 1, characterized in that: The driving device comprises a motor (13), which is fixed outside the housing (3) and drives the roller (15) to rotate.

3. A crane anti-rail clamping detection device according to claim 1, characterized in that: The left and right ends of the rotating block (8) are fixed with hinge ears (16), and the longitudinal rod (9) is hinged to the rotating block (8) via the hinge ears (16).

4. A crane anti-rail clamping detection device according to claim 1, characterized in that: The vibration device comprises a vibrator (17), a first spring (18) and a rectangular block (19); a first groove (20) disposed below the transverse groove (5) and connected to the transverse groove (5) is provided on the front and rear sides of the rectangular groove (4); a vibrator (17) is provided in the first groove (20) at a position away from the open end of the rectangular groove 4; a rectangular block (19) disposed in the first groove (20) is provided on the cross bar (12); and a first spring (18) is provided between the vibrator (17) and the rectangular block (19).

5. A crane anti-rail clamping detection device according to claim 1, characterized in that: The trigger device comprises a slider (21); a slider (21) that moves forward and backward is provided in front of a position of the transverse groove (5) away from the opening end of the rectangular groove (4); a rear end surface of the slider (21) is an inclined surface that tilts backward in a direction away from the transverse groove (5); a reverse switch (22) is provided behind a position of the transverse groove (5) away from the opening end of the rectangular groove (4); the reverse switch (22) is connected to a driving device via a circuit; when the reverse switch (22) is activated, the driving device is triggered to drive the crane (2) to move in the reverse direction.

6. A crane anti-rail clamping detection device according to claim 5, characterized in that: The rectangular groove (4) is provided with a second groove (23) on the front and rear sides thereof and connected to a position of the transverse groove (5) away from the open end of the rectangular groove (4); the reverse switch (22) is arranged at the rear of the second groove (23) and faces forward; the slider (21) is arranged at the front of the second groove (23) and its inclined surface ends face backward; and a second spring (24) is arranged between the slider (21) and the front inner side of the second groove (23).

7. A crane anti-rail clamping detection device according to claim 1, characterized in that: A first permanent magnet (25) is provided in the protrusion (10), and a second permanent magnet (26) is provided on the housing (3) and is disposed at the inner end of the cylindrical groove (6). The first permanent magnet (25) and the second permanent magnet (26) attract each other so that the protrusion (10) tends to move closer to the moving direction of the crane (2).

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