Crane hook anti-collision mechanism

Abstract

The utility model discloses an anti-collision mechanism for a lifting hook of a crane. The anti-collision mechanism comprises a lifting shell and a multi-stage anti-collision mechanism, a rotatable lifting hook is mounted in the lifting shell, a hollow seat is arranged on the upper side of the lifting shell, and a buffer seat is slidably connected to the outer side of the hollow seat; the multi-stage anti-collision mechanism comprises first dampers, first springs and an annular base, the first dampers are evenly arranged on the upper side of the hollow base, the annular base is arranged between the telescopic ends of the first dampers, the first springs are evenly distributed between the hollow base and the annular base, and the first springs are movably connected with the outer ends of the adjacent first dampers in a sleeving mode; according to the anti-collision mechanism for the crane hook, the collision between the hook and the lower side of the shell at the winding part of the lifting rope can be buffered and absorbed in multiple stages, so that the interference of the collision force on the connection between the hook and the lifting rope is effectively avoided; and meanwhile, the device can timely warn a worker that the lifting rope of the crane is wound to a critical value through the detection and alarm element, so that the device is convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of crane hook anti-collision, in particular to a crane hook anti-collision mechanism. Background Art

[0002] A crane refers to a multi-action lifting machinery that lifts vertically and carries heavy objects horizontally within a certain range. It is also called an overhead crane, an overhead crane, or a hoist. Some lifting equipment has the working characteristic of intermittent movement, that is, the corresponding mechanisms of material picking, transportation, unloading and other actions work alternately in one working cycle. During the use of the crane, the height of the object lifted by the hook is adjusted by the lifting rope, and the hook is driven to move vertically upward during the winding process of the lifting rope. When the lifting rope is wound to a certain extent, if the staff observes carefully, the upper end of the hook is likely to collide with the lower side of the shell of the rope winding part. At this time, the collision force will be transmitted to the connection between the rope and the hook. Over time, the collision force is likely to cause the connection between the hook and the rope to break, which needs to be improved. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the existing defects and provide an anti-collision mechanism for a crane hook, which can perform multi-stage buffering and absorption of the collision between the hook and the lower side of the shell of the rope winding part, effectively avoiding the interference of the collision force on the connection between the hook and the rope. At the same time, the device can promptly warn the staff when the crane rope is wound to a critical value through detection and alarm elements. It is easy to use and can effectively solve the problems in the background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a crane hook anti-collision mechanism, comprising a hook shell and a multi-stage anti-collision mechanism;

[0005] Lifting shell: a rotatable lifting hook is installed inside it, a hollow seat is provided on the upper side of the lifting shell, and a buffer seat is slidably connected to the outer side of the hollow seat;

[0006] Multi-stage anti-collision mechanism: it includes a damper 1, a spring 1 and an annular seat, the damper 1 is evenly arranged on the upper side of the hollow seat, an annular seat is provided between the telescopic ends of the damper 1, and a uniformly distributed spring 1 is provided between the hollow seat and the annular seat, and the spring 1 is movably connected to the outer end of the adjacent damper 1. The device can perform multi-stage buffering and absorption of the collision between the hook and the lower side of the shell of the rope winding part, effectively avoiding the interference of the collision force on the connection between the hook and the rope. At the same time, the device can promptly warn the staff when the crane rope is wound to a critical value through detection and alarm components, and is easy to use.

[0007] Furthermore, a single-chip microcomputer and a battery are respectively provided on the lower side of the suspension shell, and the output end of the battery is electrically connected to the input end of the single-chip microcomputer, so that the electrical components can be easily controlled.

[0008] Furthermore, a pressure sensor is provided on the inner wall of the buffer seat, and the pressure sensor is electrically connected to the single-chip microcomputer in a bidirectional manner. An alarm is provided on the lower side of the lifting shell, and the input end of the alarm is electrically connected to the output end of the single-chip microcomputer. Through the detection and alarm elements, the staff can be warned in time that the crane rope is reeled in to a critical value.

[0009] Furthermore, the multi-stage anti-collision mechanism also includes a rubber ring 1, a damper 2, a spring 2 and an arc seat. The rubber ring 1 is arranged on the outside of the annular seat, and the inner wall of the buffer seat is provided with evenly distributed arc seats through the damper 2 and the spring 2. The spring 2 is movably connected to the outer end of the adjacent damper 2. The arc seat on the left is installed in cooperation with the pressure sensor to absorb the lateral component of the collision force between the hook and the rope winding shell generated by the contact inclined surface of the annular seat and the arc seat and convert it into heat energy release. At the same time, the rubber ring 1 is driven by the annular seat to slide relatively along the inner arc surface of the arc seat, thereby increasing the friction resistance and further improving the buffering effect of the device on this collision force.

[0010] Furthermore, the inner wall of the hanging shell is provided with symmetrically distributed annular grooves, and a connecting seat is slidably connected between the annular grooves. The lower side of the connecting seat and the upper side of the hook are fixedly connected, and a hanging rope is provided on the upper side of the hanging shell. The upper end of the hanging rope passes through the middle avoidance hole of the hollow seat and the buffer seat in turn, and the outer side of the hollow seat is provided with evenly distributed reinforcing ribs, and the pressure bearing capacity of the hollow seat is improved by the reinforcing ribs.

[0011] Furthermore, a second rubber ring is provided on the upper side of the buffer seat, and the reeling collision between the hook and the reeling shell of the lifting rope is initially buffered by the elastic deformation between the rubber molecules inside the second rubber ring.

[0012] Furthermore, the inner wall of the lifting shell is provided with evenly distributed arc-shaped clamping seats through telescopic columns and spring three. Spring three is movably connected to the outer end of the adjacent telescopic column. Gears are provided on the outer side of the connecting seat. The arc-shaped clamping seats are meshed with the gears. The elastic clamping reduces the relative rotational movement between the hook and the lifting rope during the crane lifting objects, thereby improving the stability of the movement of the lifted objects.

[0013] Compared with the prior art, the utility model has the following beneficial effects: the crane hook anti-collision mechanism has the following advantages:

[0014] 1. When the hoisting rope of the crane is wound up to the point where the hook collides with the lower side of the shell of the outer winding part of the hoisting rope, the elastic deformation between the rubber molecules inside the rubber ring 2 is used to initially buffer the winding collision between the two. Subsequently, the corresponding vertical and lateral components of the collision force generated on the contact slope of the annular seat and the arc seat are absorbed and converted into heat energy for release through the spring 1 and damper 1 and the spring 2 and damper 2 respectively. Subsequently, the annular seat and the arc seat slide relative to each other, and the contact friction is increased by the rubber ring 1, so as to further improve the buffering effect of the device on the collision force. The device can perform multi-stage buffering and absorption of the collision between the hook and the lower side of the shell of the rope winding part, effectively avoiding the interference of the collision force on the connection between the hook and the rope.

[0015] 2. When the crane hoisting rope is reeled in, the contact pressure value of the left arc seat is transmitted to the single-chip microcomputer through the pressure sensor. The single-chip microcomputer activates the alarm in time according to the change of the contact pressure value, and warns the staff that the crane hoisting rope is reeled in to the critical value. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0018] Figure 3 This is an enlarged structural diagram of the utility model at A;

[0019] Figure 4 This is an enlarged structural diagram of point B of the utility model.

[0020] In the figure: 1 lifting shell, 2 connecting seat, 3 hook, 4 hollow seat, 5 buffer seat, 6 lifting rope, 7 multi-stage anti-collision mechanism, 71 damper 1, 72 spring 1, 73 annular seat, 74 rubber ring 1, 75 damper 2, 76 spring 2, 77 arc seat, 8 reinforcing ribs, 9 rubber ring 2, 10 pressure sensor, 11 gear, 12 arc seat, 13 telescopic column, 14 spring 3, 15 single-chip microcomputer, 16 battery, 17 alarm. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-4, This embodiment provides a technical solution: a crane hook anti-collision mechanism, including a hook shell 1 and a multi-stage anti-collision mechanism 7;

[0023] Suspension shell 1: a rotatable suspension hook 3 is installed inside the suspension shell 1, a hollow seat 4 is provided on the upper side of the suspension shell 1, a buffer seat 5 is slidably connected to the outer side of the hollow seat 4, a single-chip microcomputer 15 and a battery 16 are provided on the lower side of the suspension shell 1, the output end of the battery 16 is electrically connected to the input end of the single-chip microcomputer 15, a pressure sensor 10 is provided on the inner wall of the buffer seat 5, and the pressure sensor 10 is bidirectionally electrically connected to the single-chip microcomputer 15, an alarm 17 is provided on the lower side of the suspension shell 1, and the input end of the alarm 17 is electrically connected to the output end of the single-chip microcomputer 15, and the inner wall of the suspension shell 1 is provided with symmetrically distributed annular grooves, A connecting seat 2 is slidably connected between the annular grooves, the lower side of the connecting seat 2 and the upper side of the hook 3 are fixedly connected, a lifting rope 6 is provided on the upper side of the lifting shell 1, and the upper end of the lifting rope 6 passes through the middle avoidance hole of the hollow seat 4 and the buffer seat 5 in sequence, and the outer side of the hollow seat 4 is provided with uniformly distributed reinforcing ribs 8. The inner wall of the lifting shell 1 is provided with uniformly distributed arc-shaped clamping seats 12 through telescopic columns 13 and spring three 14, and the spring three 14 is movably sleeved with the outer end of the adjacent telescopic column 13, and a gear 11 is provided on the outer side of the connecting seat 2, and the arc-shaped clamping seats 12 are meshed and connected with the gear 11. The crane can lift its own lifting rope 6. During the winding operation, the single chip microcomputer 15 starts the pressure sensor 10, and the battery 16 provides power support for the operation of the single chip microcomputer 15. During the collision and contact between the upper side of the buffer seat 5 and the lower side of the shell of the external winding part of the lifting rope 6, the arc seat 77 gradually moves to the end away from the center of the device. When the arc seat 77 on the left side moves to a certain extent, it is squeezed and contacted with the pressure sensor 10. The pressure sensor 10 measures the pressure value and transmits the result to the single chip microcomputer 15 in the form of an electrical signal. The single chip microcomputer 15 starts the alarm 17 according to the measured pressure value, thereby alerting the staff to the situation. The hook 3 is warned by reeling the lifting rope 6 to the limit. When the crane lifts the object through the hook 3, the compression force of the spring 3 14 causes the teeth of the arc-shaped clamping seat 12 to elastically clamp the gear 11. The elastic clamping reduces the relative rotation between the hook 3 and the lifting rope 6 during the crane lifting the object, improves the stability of the lifting object movement, and improves the pressure bearing capacity of the hollow seat 4 through the reinforcing rib 8. The device can timely warn the staff when the crane rope is reeled to the critical value through the detection and alarm components, and is easy to use;

[0024] Multi-stage anti-collision mechanism 7: It includes a damper 71, a spring 72 and an annular seat 73. The damper 71 is evenly arranged on the upper side of the hollow seat 4. An annular seat 73 is provided between the telescopic ends of the damper 71. Evenly distributed springs 72 are provided between the hollow seat 4 and the annular seat 73. The springs 72 are movably connected to the outer ends of the adjacent dampers 71. The multi-stage anti-collision mechanism 7 also includes a rubber ring 74, a damper 75, a spring 76 and an arc seat 77. The rubber ring 74 is arranged on the outer side of the annular seat 73. The inner wall of the buffer seat 5 The damper 2 75 and the spring 2 76 are provided with arc seats 77 evenly distributed, and the spring 2 76 is movably connected with the outer end of the adjacent damper 2 75. The arc seat 77 on the left is installed in cooperation with the pressure sensor 10. The upper side of the buffer seat 5 is provided with a rubber ring 2 9. When the crane reels its own lifting rope 6, as the lifting rope 6 is reeled, the hook part moves up. When the hook 3 moves up to a certain extent, the upper side of the buffer seat 5 collides with the lower side of the shell of the external reeling part of the lifting rope 6. At this time, the rubber molecules inside the rubber ring 2 9 are The elastic deformation provides a preliminary buffer for the winding collision between the two. As the hoisting rope 6 continues to be wound, the elastic contraction of the spring 1 72 and the friction or hydraulic resistance of the elastic element and the bearing element inside the damper 71 absorb the vertical component of the collision force generated at the contact slope of the annular seat 73 and the arc seat 77 and convert it into heat energy release. Subsequently, the damper 2 75 and the spring 2 76 use the same principle to absorb the lateral component of the collision force generated at the contact slope of the annular seat 73 and the arc seat 77 and convert it into heat energy release. At the same time, the annular seat 73 drives the rubber ring 74 to slide relatively along the inner arc surface of the arc seat 77, thereby increasing the friction resistance and further improving the device's buffering effect on the collision force. The device can effectively avoid the hard collision between the hook 3 and the outer winding part shell of the lifting rope 6 through multi-stage buffering, thereby avoiding the connection between the hook 13 and the lifting rope 6 from breaking. The device can perform multi-stage buffering and absorption of the collision between the hook 3 and the lower side of the shell of the rope winding part, effectively avoiding the interference of this collision force on the connection between the hook 3 and the lifting rope.

[0025] The working principle of the anti-collision mechanism of a crane hook provided by the utility model is as follows: when the crane is reeling in its own lifting rope 6, as the lifting rope 6 is reeled in, the hook part moves up, and when the hook 3 moves up to a certain extent, the upper side of the buffer seat 5 collides with the lower side of the shell of the external reeling part of the lifting rope 6, at this time, the elastic deformation between the rubber molecules inside the rubber ring 2 9 is used to initially buffer the reeling collision between the two, and as the lifting rope 6 continues to be reeled in, the elastic contraction of the spring 1 72 and the elastic element and the bearing element inside the damper 71 are connected. Through friction or hydraulic resistance, the vertical component of the collision force generated at the contact slope of the annular seat 73 and the arc seat 77 is absorbed and converted into heat energy release. Subsequently, the lateral component of the collision force generated at the contact slope of the annular seat 73 and the arc seat 77 is absorbed and converted into heat energy release through the damper 2 75 and the spring 2 76 through the same principle. At the same time, the annular seat 73 drives the rubber ring 1 74 to slide relatively along the inner arc surface of the arc seat 77, thereby increasing the friction resistance and further improving the buffering effect of the device on this collision force. The device can effectively In order to avoid the hook 3 and the outer winding part shell of the lifting rope 6 from hard collision with each other, and thus avoid the connection between the hook 13 and the lifting rope 6 from breaking, during this process, the single chip microcomputer 15 starts the pressure sensor 10, and the battery 16 provides power support for the operation of the single chip microcomputer 15. During the collision and contact between the upper side of the buffer seat 5 and the lower side of the outer winding part shell of the lifting rope 6, the arc seat 77 gradually moves to the end away from the center of the device. When the arc seat 77 on the left side moves to a certain extent, it squeezes and contacts with the pressure sensor 10, and the pressure sensor 10 measures the pressure value and outputs the result in the form of electricity. The signal is transmitted to the single-chip computer 15, and the single-chip computer 15 activates the alarm 17 according to the measured pressure value, thereby warning the staff that the hook 3 is reeled to the limit through the lifting rope 6. In the process of the crane lifting the object through the hook 3, the compression elastic force of the spring three 14 makes the teeth of the arc-shaped clamping seat 12 elastically clamp the gear 11. The elastic clamping reduces the relative rotational movement between the hook 3 and the lifting rope 6 during the crane lifting the object, improves the movement stability of the hoisted object, and improves the pressure bearing capacity of the hollow seat 4 through the reinforcing ribs 8.

[0026] It is worth noting that the single chip microcomputer 15 disclosed in the above embodiment can adopt MSP430, the pressure sensor 10 can adopt PCM303, and the alarm 17 can adopt TGSG-03. The single chip microcomputer 15 controls the pressure sensor 10 and the alarm 17 to work using methods commonly used in the prior art.

[0027] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A crane hook anti-collision mechanism, characterized in that: It comprises a suspension shell (1) and a multi-stage anti-collision mechanism (7); A hanging shell (1) is provided with a rotatable hanging hook (3) inside, a hollow seat (4) is provided on the upper side of the hanging shell (1), and a buffer seat (5) is slidably connected to the outer side of the hollow seat (4); A multi-stage anti-collision mechanism (7): comprising a damper (71), a spring (72) and an annular seat (73), wherein the damper (71) is evenly arranged on the upper side of the hollow seat (4), an annular seat (73) is provided between the telescopic ends of the damper (71), and evenly distributed springs (72) are provided between the hollow seat (4) and the annular seat (73), and the springs (72) are all movably sleeved with the outer ends of adjacent dampers (71).

2. The anti-collision mechanism for a crane hook according to claim 1, characterized in that: A single-chip computer (15) and a storage battery (16) are respectively arranged on the lower side of the suspension shell (1), and the output end of the storage battery (16) is electrically connected to the input end of the single-chip computer (15).

3. The anti-collision mechanism for a crane hook according to claim 2, characterized in that: The inner wall of the buffer seat (5) is provided with a pressure sensor (10), the pressure sensor (10) is bidirectionally electrically connected to the single-chip computer (15), and the lower side of the hanging shell (1) is provided with an alarm (17), the input end of the alarm (17) is electrically connected to the output end of the single-chip computer (15).

4. The anti-collision mechanism for a crane hook according to claim 3, characterized in that: The multi-stage anti-collision mechanism (7) further comprises a rubber ring (74), a damper (75), a spring (76) and an arc seat (77). The rubber ring (74) is arranged on the outer side of the annular seat (73). The inner wall of the buffer seat (5) is provided with evenly distributed arc seats (77) through the damper (75) and the spring (76). The spring (76) is movably sleeved with the outer end of the adjacent damper (75). The arc seat (77) on the left side is installed in cooperation with the pressure sensor (10).

5. The anti-collision mechanism for a crane hook according to claim 1, characterized in that: The inner wall of the suspension shell (1) is provided with symmetrically distributed annular grooves, a connecting seat (2) is slidably connected between the annular grooves, the lower side of the connecting seat (2) and the upper side of the hook (3) are fixedly connected, a suspension rope (6) is provided on the upper side of the suspension shell (1), the upper end of the suspension rope (6) passes through the middle avoidance hole of the hollow seat (4) and the buffer seat (5) in sequence, and the outer side of the hollow seat (4) is provided with uniformly distributed reinforcing ribs (8).

6. The anti-collision mechanism for a crane hook according to claim 1, characterized in that: A second rubber ring (9) is provided on the upper side of the buffer seat (5).

7. The anti-collision mechanism for a crane hook according to claim 5, characterized in that: The inner wall of the suspension shell (1) is provided with evenly distributed arc-shaped clamping seats (12) through telescopic columns (13) and spring three (14), and spring three (14) is movably sleeved with the outer end of the adjacent telescopic column (13). The outer side of the connecting seat (2) is provided with a gear (11), and the arc-shaped clamping seats (12) are meshedly connected with the gear (11).

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