Full-automatic hoist quick connection changing mechanism and hoisting equipment

Abstract

This application relates to the field of lifting equipment technology, specifically providing a fully automatic quick-change mechanism for spreader attachments and a lifting device. The fully automatic quick-change mechanism for spreader attachments includes a crane-end switching assembly, the lower part of which includes a rotatable irregularly shaped plate. The irregularly shaped plate has a circular main body and several arc-shaped flanges extending radially outward from the main body. The upper part of the spreader-end switching assembly includes an irregularly shaped ring, the shape of which is complementary to that of the irregularly shaped plate. The irregularly shaped ring also includes several arc-shaped tongues extending radially inward. When the irregularly shaped plate moves downward through the central hole, rotating the irregularly shaped plate causes the arc-shaped flanges and arc-shaped tongues to align one by one in the vertical direction. Through the overlapping and cooperation of the irregularly shaped plate of the crane-end switching assembly and the irregularly shaped ring of the spreader-end switching assembly, a compact design layout of the quick-change mechanism for spreader attachments is achieved.

Description

Technical Field

[0001] This application relates to the field of lifting equipment technology, and in particular to a fully automatic quick-change mechanism for lifting devices and lifting equipment. Background Technology

[0002] Currently, the main types of spreader connection methods for fully automatic cranes include the following three forms: (1) Fixed connection, specifically implemented as bolt or pin connection. This type of connection cannot automatically change different types of spreaders; (2) Rotary locking connection, specifically implemented by insert connection for power supply and control. To a certain extent, it can automatically change different types of spreaders. This type of connection is mainly used for container lifting. Due to its huge size, the applicable range of this type of connection is relatively narrow; (3) Connection with a central pin and clamping around it using chucks. This type of connection has a complex structure and a narrow range of application, and is not suitable for large-tonnage, large-size spreaders. Utility Model Content

[0003] This application provides a fully automatic quick-change mechanism for spreader and lifting equipment to overcome the limitation of the applicability of existing fully automatic quick-change spreader mechanisms, and realizes fully automatic quick-change of spreaders applicable to various tonnages / sizes.

[0004] According to a first aspect of this application, this application provides a fully automatic quick-change mechanism for spreader attachments, comprising:

[0005] The crane end switching assembly includes a rotatable irregular plate at its lower part, the irregular plate having a circular main body and several arc-shaped flanges extending radially outward from the main body;

[0006] The lifting device end switching assembly includes an irregular ring on its upper part. The shape of the central hole of the irregular ring is complementary to that of the irregular plate. The irregular ring also includes several arc-shaped protrusions extending radially inward.

[0007] As the irregular plate moves downward through the central hole, it is rotated so that the arc-shaped flange and the arc-shaped tongue are aligned one by one in the vertical direction.

[0008] According to the fully automatic quick-change mechanism for spreaders provided in this application, the irregular plate also includes several positioning holes, and the spreader end changing component also includes several locking pins that can move linearly in the vertical direction. When the irregular plate is rotated, the positioning holes and locking pins are aligned one by one in the vertical direction, and the locking pins move through the positioning holes.

[0009] According to the fully automatic quick-change mechanism for spreaders provided in this application, the spreader end change assembly further includes several connecting rods and several lifting pins. Each lifting pin is connected to a corresponding locking pin through a corresponding single connecting rod, and each lifting pin drives the corresponding locking pin to perform linear movement.

[0010] According to the fully automatic quick-change mechanism for lifting devices provided in this application, the crane end changing assembly further includes a return rotor assembly. The return rotor assembly includes an inner ring component and an outer ring component arranged around the inner ring component. The outer ring component is rotatable relative to the inner ring component, and a shaped plate is fixedly connected to the lower part of the outer ring component.

[0011] According to the fully automatic quick-change mechanism for lifting devices provided in this application, the crane end changing assembly further includes a motor, a reducer, and an actuator. The output end of the motor is connected to the input end of the reducer, and the output end of the reducer is connected to the actuator. The actuator drives the rotation of the outer ring component.

[0012] According to the fully automatic quick-change mechanism for spreaders provided in this application, the crane end change assembly further includes one of a guide male component and a guide female component, and the spreader end change assembly further includes the other of a guide male component and a guide female component. During the downward movement of the irregular plate, the guide male component is inserted into the guide female component to guide the irregular plate to align and pass through the central hole.

[0013] According to the fully automatic quick-change mechanism for spreaders provided in this application, the crane end changeover component further includes a position sensor, which detects the vertical relative position and / or circumferential angular position of the irregular plate relative to the irregular ring.

[0014] According to the fully automatic quick-change mechanism for spreaders provided in this application, the crane-end change component also includes a wireless communication module, which is at least communicatively connected to the position sensor and the motor.

[0015] According to the fully automatic quick-change mechanism for spreaders provided in this application, the spreader end changing assembly further includes a cylinder, a wedge frame, and a spreader connector. The irregular ring is fixedly connected to the top of the cylinder, the wedge frame is fixedly connected to the bottom of the cylinder, and the spreader connector is fixedly connected to the bottom of the wedge frame.

[0016] According to a second aspect of this application, this application also provides a lifting device, including a boom, a lifting device, and a fully automatic quick-change mechanism for the lifting device as described in the first aspect of this application, wherein the boom is fixedly connected to a crane-end changing assembly, the lifting device is fixedly connected to a lifting device-end changing assembly, and the crane-end changing assembly cooperates with the lifting device-end changing assembly.

[0017] The fully automatic spreader quick-change mechanism provided in this application achieves the transmission of lifting force through the overlapping and cooperation of the irregular plate of the crane end change component and the irregular ring of the spreader end change component. In the vertical direction, this overlapping and cooperation achieves a compact design layout, which occupies less space compared with the connection method of the prior art. At the same time, such a compact layout is conducive to the installation and application of the fully automatic spreader quick-change mechanism among various lifting equipment and spreaders. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a perspective view of the fully automatic quick-change mechanism for spreaders provided in this application, wherein the crane-end change assembly and the spreader-end change assembly are separate.

[0020] Figure 2 This is an exploded view of the crane end switching assembly provided in this application.

[0021] Figure 3 This is a top view of the irregularly shaped plate provided in this application.

[0022] Figure 4a and 4b These are, respectively, an exploded view and an assembled cross-sectional view of the lifting device end switching assembly provided in this application.

[0023] Figure 5 This is a top view of the irregular ring provided in this application.

[0024] Figure 6 This is a front view of the locking sub-component provided in this application.

[0025] Figure 7 This is a perspective view of the boom portion of the lifting equipment provided in this application.

[0026] Figure label:

[0027] 1. Crane end switching assembly; 101. Motor; 102. Reducer; 103. Actuator; 104. Return rotor assembly; 1041. Inner ring component; 1042. Outer ring component; 105. Transition connecting plate; 106. Transition cylinder; 107. Irregularly shaped plate; 1071. Main body; 1072. Arc-shaped flange; 1073. Positioning hole; 108. Guide mother component; 109. Position sensor; 110. Wireless communication module;

[0028] 2. Spreader end connector assembly; 201. Guide male component; 202. Irregular ring; 2021. Central hole; 2022. Arc-shaped tongue; 203. Cylinder body; 204. Locking sub-assembly; 2041. Locking pin; 2042. Connecting rod; 2043. Lifting pin; 205. Base plate; 206. Wedge frame; 207. Spreader connector;

[0029] 3. Crane boom; 4. Lifting gear; 41. Power supply. Detailed Implementation

[0030] The embodiments of this application will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this application, but should not be used to limit the scope of this application.

[0031] In the description of the embodiments of this application, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0032] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to fixed connections or detachable connections, wherein a fixed connection can include an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application based on the specific circumstances.

[0033] In the embodiments of this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0034] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the embodiments of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0035] The following is combined with Figures 1 to 7 This application describes the fully automatic quick-change mechanism for spreader and the lifting equipment.

[0036] Figure 1 This is a perspective view of the fully automatic quick-change spreader mechanism provided in this application, such as... Figure 1 As shown, the fully automatic spreader quick-change mechanism includes a crane end changer assembly 1 and a spreader end changer assembly 2.

[0037] Figure 2 This is an exploded view of the crane end switching assembly 1 provided in this application, as shown below. Figure 2As shown, the crane end switching assembly 1 includes a motor 101, a reducer 102, an actuator 103, a return rotor assembly 104, a transition connecting plate 105, a transition cylinder 106, a shaped plate 107, a guide female component 108, a position sensor 109, and a wireless communication module 110. The return rotor assembly 104 further includes an inner ring component 1041 and an outer ring component 1042. The return rotor assembly 104, particularly its inner ring component 1041, is connected to the boom 3 of the lifting equipment via a connection at its top, such as a flange. The outer ring component 1042 is arranged around the inner ring component 1041 and is rotatable relative to it. The output of the motor 101 is connected to the input of the reducer 102, and the output of the reducer 102 is connected to the actuator 103, which drives the rotation of the outer ring component 1042. The outer ring component 1042 is connected to the transition connecting plate 105 via a connection at its bottom, such as a flange. Starting from the transition connecting plate 105, a transition cylinder 106, a shaped plate 107, and a guide mother component 108 are sequentially fixedly connected from top to bottom. The outer ring component 1042, inner ring component 1041, transition connecting plate 105, transition cylinder 106, shaped plate 107, and guide mother component 108 are arranged coaxially. However, in other embodiments, the guide mother component 108 need not be coaxial with the other components; in other words, the guide mother component 108 need not be located at the lower center of the shaped plate 107. The position sensor 109 is located near the lower outer peripheral edge of the shaped plate 107. The wireless communication module 110 is communicatively connected to at least the position sensor 109 and the motor 101. To facilitate the operation of the wireless communication module 110, it is installed at the other end of the actuator 103 opposite to the reducer 102. Of course, it is also feasible to install the wireless communication module 110 in other locations.

[0038] Figure 3 This is a top view of the irregularly shaped plate 107 provided in this application, as shown below. Figure 3 As shown, the irregular plate 107 has a circular main body portion 1071 and several arc-shaped flanges 1072 extending radially outward from the main body portion 1071. Furthermore, the irregular plate 107 is provided with several positioning holes 1073.

[0039] Figure 4a and 4bFigure 4 shows an exploded view and an assembled cross-sectional view of the spreader end switching assembly 2 provided in this application. The spreader end switching assembly 2 includes a guide male component 201, a shaped ring 202, a cylindrical body 203, several locking sub-assemblies 204, a base plate 205, a wedge-shaped frame 206, and a spreader connector 207. The shaped ring 202 is fixedly connected to the top of the cylindrical body 203, and the base plate 205 is fixedly connected to the bottom of the cylindrical body 203. Thus, the cylindrical body 203 and the base plate 205 together define a cylindrical receiving space with an open top. The guide male component 201 and several locking sub-assemblies 204 are housed in this cylindrical receiving space. The guide male component 201 can be arranged in the center of the cylindrical receiving space, while the positioning of the locking sub-assemblies 204 will be described below. Of course, similar to the guide female component 108, the guide male component 201 does not necessarily need to be arranged in the center of the cylindrical receiving space, or even not in the cylindrical receiving space. Starting from the base plate 205, wedge-shaped frame 206 and lifting device connector 207 are fixedly connected sequentially from top to bottom.

[0040] Figure 5 This is a top view of the irregular ring 202 provided in this application, as shown below. Figure 5 As shown, the irregular ring 202 is a ring-shaped component, which necessarily has a central hole 2021. The shape of the central hole 2021 is complementary to that of the irregular plate 107. The irregular ring 202 also includes several arc-shaped protrusions 2022 extending radially inward.

[0041] During the connection of the crane-end switching assembly 1 and the spreader-end switching assembly 2, the crane-end switching assembly 1 moves slowly downwards. During this process, the guide male component 201 and the guide female component 108 assist in aligning the crane-end switching assembly 1 with the spreader-end switching assembly 2. The crane-end switching assembly 1 continues to descend until the irregular plate 107 moves downwards and passes through the central hole 2021. At this time, the position sensor 109 detects that the irregular plate 107 has descended into place and sends a signal to the wireless communication module 110, thereby instructing the motor 101 to start. The motor 101 rotates the outer ring component 1042 through the reducer 102 and the actuator 103, and the outer ring component 1042 drives the irregular plate 107 to rotate. Before rotation, the arc-shaped flange 1072 and the arc-shaped tongue 2022 are offset from each other; after rotation, the arc-shaped flange 1072 and the arc-shaped tongue 2022 overlap each other. Then, the crane end switching assembly 1 is lifted, and the connection between the crane end switching assembly 1 and the spreader end switching assembly 2 is realized by the overlapping cooperation of the arc-shaped flange 1072 and the arc-shaped tongue 2022.

[0042] In particular, the crane end switching assembly 1 can be designed such that the diameter of the transition cylinder 106 is slightly smaller than that of the shaped plate 107, especially its main body 1071. This way, when the shaped plate 107 moves downward through the central hole 2021 and rotates, the shaped ring 202, especially its arc-shaped tongue 2022, will not come into contact with the transition cylinder 106, thus avoiding a situation where the transition cylinder 106 might obstruct the movement of the shaped plate 107.

[0043] Figure 6 This is a front view of the locking sub-component 204 provided in this application, as shown below. Figure 6 As shown, the locking sub-assembly 204 includes a locking pin 2041, a connecting rod 2042, and a lifting pin 2043. The lifting pin 2043 is the active element, actively performing a reciprocating motion in the vertical direction. This, in turn, drives the locking pin 2041 to reciprocate in the vertical direction via the connecting rod 2042. It can be noted that the reciprocating motion of the lifting pin 2043 is opposite to that of the locking pin 2041. After rotating the outer ring member 1042 and the shaped plate 107, the plurality of locking pins 2041 in the cylindrical accommodating space align one by one with the plurality of positioning holes 1073 of the shaped plate 107. Additionally, the position sensor 109 also detects the circumferential angular position of the shaped plate 107 relative to the shaped ring 202. Therefore, when the position sensor 109 detects that the irregular plate 107 has rotated into position, it immediately sends a signal to all locking sub-assemblies 204. In response to this signal, the lifting pin 2043 drives the locking pin 2041 to move upward, so that the locking pin 2041 passes upward through the positioning hole 1073 and finally abuts against the bottom of the transition cylinder 106. As a result, the irregular plate 107 is locked by the locking sub-assemblies 204 and will no longer rotate, thereby ensuring that the overlapping fit of the arc-shaped flange 1072 and the arc-shaped tongue 2022 will not accidentally disengage, ensuring the safety of the lifting operation.

[0044] It is conceivable that the positions of the male guide component 201 and the female guide component 108 can be interchanged. That is, the male guide component 201 can also be set on the crane end switching assembly 1, and correspondingly, the female guide component 108 can also be set on the spreader end switching assembly 2. Moreover, the male guide component 201 and the female guide component 108 do not necessarily have to be set on the virtual central axis; they can also be set in other spatial positions, as long as they do not hinder the connection between the crane end switching assembly 1 and the spreader end switching assembly 2, and do not hinder the rotation of the outer ring component 1042 - the irregular plate 107.

[0045] Back Figure 4a and 4bThe wedge frame 206 is fixedly connected to the lower part of the cylinder 203 via the base plate 205. The wedge frame 206 is designed so that maintenance personnel can place the spreader end adapter 2 on a dedicated spreader frame when the lifting equipment is idle. In particular, the dedicated spreader frame may have a mounting groove that mates with the wedge frame 206, so that the lifting equipment can move the spreader end adapter 2, and in particular the wedge frame 206, into the mounting groove in the wedge direction, and then place it there.

[0046] Figure 7 This is a perspective view of the three parts of the boom of the lifting equipment provided in this application, as shown below. Figure 7 As shown, the lifting equipment provided in this application includes a boom 3, a spreader 4, and a fully automatic spreader quick-change mechanism as described above. The boom 3 is fixedly connected to the crane end change assembly 1, particularly its inner ring structure 1041. The spreader 4 is fixedly connected to the spreader end change assembly 2, particularly its spreader connector 207. As described above, the connection between the crane end change assembly 1 and the spreader end change assembly 2 is achieved by the overlapping fit of the arcuate flange 1072 and the arcuate tongue 2022. Thus, the lifting equipment can automatically replace the spreader end change assembly 2, which has been connected to a specific spreader 4, according to different actual working conditions, and immediately put it into use.

[0047] Furthermore, the spreader 4 may also be equipped with a power supply 41, which can be electrically connected to at least the motor 101, position sensor 109, wireless communication module 110, lifting pin 2043, etc., to provide power for the operation of these components.

[0048] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A fully automatic quick-change mechanism for lifting devices, characterized in that, include: The crane end switching assembly (1) includes a rotatable irregular plate (107) at its lower part, the irregular plate (107) having a circular main body portion (1071) and a plurality of arcuate flanges (1072) extending radially outward from the main body portion (1071). The lifting end switching assembly (2) includes an irregular ring (202) on its upper part. The shape of the central hole (2021) of the irregular ring (202) is complementary to that of the irregular plate (107). The irregular ring (202) also includes a number of arc-shaped protrusions (2022) extending radially inward. When the irregular plate (107) moves downward through the central hole (2021), the irregular plate (107) is rotated so that the arc-shaped flange (1072) and the arc-shaped tongue (2022) are aligned one by one in the vertical direction.

2. The fully automatic quick-change mechanism for lifting devices according to claim 1, characterized in that, The irregular plate (107) also includes several positioning holes (1073), and the lifting end switching assembly (2) also includes several locking pins (2041) that can move linearly in the vertical direction. When the irregular plate (107) is rotated, the positioning holes (1073) and the locking pins (2041) are aligned one by one in the vertical direction, and the locking pins (2041) move through the positioning holes (1073).

3. The fully automatic quick-change mechanism for lifting devices according to claim 2, characterized in that, The lifting device end switching assembly (2) also includes several connecting rods (2042) and several lifting pins (2043). Each lifting pin (2043) is connected to a corresponding locking pin (2041) through a corresponding single connecting rod (2042). Each lifting pin (2043) drives the corresponding single locking pin (2041) to perform linear movement.

4. The fully automatic quick-change mechanism for lifting devices according to claim 1, characterized in that, The crane end switching assembly (1) further includes a return rotor assembly (104), which includes an inner ring member (1041) and an outer ring member (1042) arranged around the inner ring member (1041). The outer ring member (1042) is rotatable relative to the inner ring member (1041), and the irregular plate (107) is fixedly connected to the underside of the outer ring member (1042).

5. The fully automatic quick-change mechanism for lifting devices according to claim 4, characterized in that, The crane end switching assembly (1) also includes a motor (101), a reducer (102) and an actuator (103). The output end of the motor (101) is connected to the input end of the reducer (102), and the output end of the reducer (102) is connected to the actuator (103). The actuator (103) drives the rotation of the outer ring member (1042).

6. The fully automatic quick-change mechanism for lifting devices according to claim 1, characterized in that, The crane end switching assembly (1) further includes one of a male guide member (201) and a female guide member (108), and the spreader end switching assembly (2) further includes the other of a male guide member (201) and a female guide member (108). During the downward movement of the irregular plate (107), the male guide member (201) is inserted into the female guide member (108) to guide the irregular plate (107) to align and pass through the central hole (2021).

7. The fully automatic quick-change mechanism for spreader according to claim 6, characterized in that, The crane end switching assembly (1) also includes a position sensor (109), which detects the vertical relative position and / or circumferential angular position of the irregular plate (107) relative to the irregular ring (202).

8. The fully automatic quick-change mechanism for lifting devices according to claim 7, characterized in that, The crane end switching assembly (1) also includes a wireless communication module (110), which is communicatively connected to at least the position sensor (109) and the motor (101).

9. The fully automatic quick-change mechanism for lifting devices according to claim 1, characterized in that, The spreader end switching assembly (2) also includes a cylinder (203), a wedge frame (206), and a spreader connector (207). The irregular ring (202) is fixedly connected to the top of the cylinder (203), the wedge frame (206) is fixedly connected to the bottom of the cylinder (203), and the spreader connector (207) is fixedly connected to the bottom of the wedge frame (206).

10. A lifting device, characterized in that, It includes a boom (3), a lifting device (4) and a fully automatic quick-change mechanism for lifting devices according to any one of claims 1-9, wherein the boom (3) is fixedly connected to the crane end changing component (1), the lifting device (4) is fixedly connected to the lifting device end changing component (2), and the crane end changing component (1) cooperates with the lifting device end changing component (2).

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