Steel coil clamp and travelling crane equipment

Abstract

The steel coil clamp comprises a clamp body, the clamp body comprises two clamp arms, the bottoms of the two clamp arms are provided with clamp claws, each clamp arm comprises an arm body, the inner side of each arm body is provided with a movable lining plate, the movable lining plate protrudes out of the interior of the arm body, and the movable lining plates are arranged on the movable lining plates. The top of the movable lining plate is connected with the arm body through a first spring, and an avoiding groove with the set depth is formed between the gripper arm and the arm body. The problem that in the prior art, a steel coil clamp is prone to scratching a steel coil is solved.

Description

Technical Field

[0001] This utility model belongs to the technical field of crane equipment, and in particular relates to a steel coil clamp and crane equipment. Background Technology

[0002] Existing steel coil clamps, when lifting steel coils, first require the two jaws of the clamp to extend into the center hole of the steel coil from both sides. Then, by driving the clamp upwards, the jaws move upwards to contact the upper edge of the center hole. Next, an overhead crane lifts the clamp to move the steel coil. However, in actual use, it has been found that when the jaws extend into the center hole, the two clamp arms have already clamped the sides of the steel coil. Driving the clamp upwards at this point causes the clamp arms to scratch the sides of the steel coil, resulting in edge damage and affecting the quality of the steel coil. Summary of the Invention

[0003] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide a steel coil clamp and a crane device to solve the problem that the steel coil clamp in the prior art is prone to scratching the steel coil.

[0004] To achieve the above and other related objectives, one aspect of this utility model provides a steel coil clamp, including a clamp body. The clamp body includes two clamp arms, and each clamp arm has a claw at its bottom. Each clamp arm includes an arm body, and a movable liner is provided on the inner side of the arm body. The movable liner protrudes from the inside of the arm body, and the top of the movable liner is connected to the arm body by a first spring. A clearance groove of a set depth is provided between the claw and the arm body.

[0005] Furthermore, the movable liner can be compressed into the arm body, and a first trigger sensor is provided inside the arm body. The first trigger sensor and the movable liner have a set distance. When the movable liner is compressed into the arm body, the movable liner can trigger the first trigger sensor to send a clamping signal.

[0006] Furthermore, a hinge plate is hinged inside the arm body. The first end of the hinge plate is connected to the movable liner plate, and a second spring is connected to the second end of the hinge plate. The first end of the hinge plate is lower than the second end of the hinge plate. The first end of the second spring is connected to the second end of the hinge plate, and the second end of the second spring extends vertically downward and is connected to the arm body.

[0007] Furthermore, the movable liner includes a connecting plate and a clamping base plate connected to the connecting plate, wherein the connecting plate is located inside the arm body, the clamping base plate protrudes substantially from the arm body, and the top of the connecting plate is connected to the arm body via the first spring.

[0008] Furthermore, the surface of the movable liner is provided with protrusions, which protrude 50mm beyond the surface of the movable liner.

[0009] Furthermore, the jaws are provided with a second trigger sensor, the distance between the second trigger sensor and the front end of the jaws is 70mm to 100mm, wherein the front end of the jaws is the end away from the arm body.

[0010] Furthermore, the length of the jaws is 250 mm.

[0011] Furthermore, the depth of the clearance groove is set at 300mm.

[0012] As described above, the steel coil clamp of this utility model has the following beneficial effects: After clamping the steel coil, the left and right clamping arms of the steel coil clamp are driven to rise so that the jaws at the bottom of the clamping arms contact the upper edge of the center hole of the steel coil (i.e., during the process of the jaws hooking the steel coil). Since the top of the movable liner on the inner side of the arm is connected to the arm body through the first spring, when the steel coil clamp, i.e., the two clamping arms, are driven to rise, as the clamping arms, i.e. the arm body, rise continuously, the static friction force generated by the movable liner clamping the steel coil causes the first spring to be stretched, and keeps the movable liner and the steel coil stationary (the clearance groove between the jaws and the arm body can ensure that when the arm body and the jaws rise relative to the movable liner, the bottom of the jaws will not interfere with the movable liner), thereby avoiding scratches on the steel coil by the movable liner, and thus effectively ensuring the quality of the steel coil.

[0013] Another aspect of this utility model provides a crane device, which includes the steel coil clamp described above. The beneficial effects of this crane device are the same as those of the steel coil clamp described above, and therefore will not be repeated here. Attached Figure Description

[0014] Figure 1 The diagram shown is a schematic of the clamp arm structure of the steel coil clamp provided by this utility model.

[0015] Explanation of reference numerals in the attached figures

[0016] 101 clamp arm

[0017] 1010 Arm and Body

[0018] 1011 Movable Liner

[0019] 1011a Connector

[0020] 1011b sandwich substrate

[0021] 102 Pliers

[0022] 1021 Second trigger sensor

[0023] 103 First Spring

[0024] 104 clearance slots

[0025] 105 First trigger sensor

[0026] 106 Hinged Plate

[0027] 107 Second Spring

[0028] 108 bumps Detailed Implementation

[0029] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model.

[0030] In the description of this utility model, it should be noted that, unless otherwise specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or a connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0031] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0032] Please see Figure 1It should be noted that the illustrations provided in this embodiment are only schematic representations of the basic concept of this utility model. Therefore, the drawings only show the components related to this utility model and are not drawn according to the actual number, shape and size of the components. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0033] The first aspect of this utility model provides a steel coil clamp, such as... Figure 1 As shown, the steel coil clamp includes a clamp body, which includes two clamp arms 101 (only one clamp arm is shown in the figure). The bottom of each clamp arm 101 is provided with a jaw 102. Each clamp arm 101 includes an arm body 1010. The inner side of the arm body 1010 is provided with a movable liner 1011, which protrudes from the inside of the arm body. The top of the movable liner 1011 is connected to the arm body 1010 by a first spring 103. A clearance groove 104 of a set depth is provided between the jaw 102 and the arm body 1010.

[0034] The beneficial effects of this utility model of steel coil clamp are as follows: When clamping a steel coil, after the left and right clamping arms 101 of the steel coil clamp clamp the steel coil, the steel coil clamp is driven to rise so that the jaws 102 at the bottom of the clamping arms 101 contact the upper edge of the center hole of the steel coil (i.e., during the process of the jaws hooking the steel coil). Since the top of the movable liner 1011 on the inner side of the arm body 1010 is connected to the arm body 1010 through the first spring 103, when the steel coil clamp, i.e., the two clamping arms 101, is driven to rise, as the clamping arms, i.e. the arm body, rise continuously, the static friction force generated by the movable liner 1011 clamping the steel coil causes the first spring 103 to be stretched, and makes the movable liner 1011 and the steel coil remain stationary (the clearance groove between the jaws and the arm body can ensure that when the arm body and the jaws rise relative to the movable liner, the bottom of the jaws will not interfere with the movable liner), thereby avoiding the movable liner from scratching the steel coil, and thus effectively ensuring the quality of the steel coil.

[0035] Specifically, in this embodiment, the depth of the clearance groove 104 between the claw 102 and the arm 1010 is set to 300mm.

[0036] Furthermore, to prevent the two clamping arms of the steel coil clamp from clamping the steel coil too tightly and causing damage, preferably, such as Figure 1As shown, in this embodiment, the movable liner 1011 can be compressed into the arm body 1010. The arm body 1010 is provided with a first trigger sensor 105. There is a set distance between the first trigger sensor 105 and the movable liner 1011. When the movable liner 1011 is compressed into the arm body 1010, the movable liner 1011 can trigger the first trigger sensor 105 to send a clamping signal. With this structural design, when clamping the steel coil, as the left and right clamping arms 101 of the steel coil clamp continuously clamp the sides of the steel coil, the movable liner 1011 on the arm body is gradually compressed into the arm body 1010. After the movable liner 1011 is compressed inward by a set distance, the movable liner 1011 will trigger the first trigger sensor 105 set inside the arm body 1010. The first trigger sensor 105 will then send a clamping signal to the control system that controls the movement of the steel coil clamp in a timely manner. Based on the received clamping signal, the control system will promptly control the steel coil clamp to stop moving, that is, stop clamping the steel coil. This effectively ensures the clamping force of the steel coil clamp on the steel coil and avoids damage to the steel coil caused by the steel coil clamp clamping too tightly.

[0037] Specifically, such as Figure 1 As shown, in this embodiment, a hinge plate 106 is hinged inside the arm body 1010. The first end of the hinge plate 106 is connected to the movable liner 1011, and a second spring 107 is connected to the second end of the hinge plate 106. Specifically, the first end of the hinge plate 106 is lower than the second end of the hinge plate 106. The first end of the second spring 107 is connected to the second end of the hinge plate 106, and the second end of the second spring 107 extends vertically downwards and is connected to the arm body 1010. This arrangement, as... Figure 1 As shown, when the movable liner 1011 is compressed inwards into the arm body 1010, the movable liner 1011 pulls the first end of the hinge plate 106 downwards, causing it to rotate downwards. Correspondingly, the second end of the hinge plate 106 rotates upwards, causing the second end of the hinge plate 106 to pull the second spring 107 to extend. When the steel coil clamp releases the steel coil, the second spring 107 automatically returns to its original position, pulling the second end of the hinge plate 106 downwards, causing the first end of the hinge plate 106 to rotate upwards. This, in turn, pushes the movable liner 1011 outwards. The structure is simple, the operation is stable, and the cost is low.

[0038] Specifically, such as Figure 1 As shown, in this embodiment, the movable liner 1011 includes a connecting plate 1011a and a clamping base plate 1011b connected to the connecting plate 1011a. The connecting plate 1011a is located inside the arm body 1010, and the clamping base plate 1011b protrudes from the arm body 1010. The top of the connecting plate 1011a is connected to the arm body 1010 through the first spring 103.

[0039] Furthermore, considering that the sides of some steel coils are not flat and have uneven surfaces, the preferred option is, for example... Figure 1 As shown, in this embodiment, a protrusion 108 is provided on the surface of the movable liner 1011, i.e., the surface of the clamping substrate 1011b. The protrusion 108 improves the stability of the steel coil clamping. Preferably, the protrusion 108 protrudes 50 mm beyond the surface of the clamping substrate 1011b.

[0040] Furthermore, such as Figure 1 As shown, in this embodiment, a second trigger sensor 1021 is provided on the jaw 102. The distance between the second trigger sensor 1021 and the front end of the jaw 102 is 70mm to 100mm, where the front end of the jaw refers to the end of the jaw 102 away from the arm. With this structural design, when lifting the steel coil, if the first trigger sensor 105 on the arm 101 is not triggered, but the second trigger sensor 1021 on the jaw 102 is triggered prematurely, the control system controlling the movement of the steel coil clamp will determine that there is an abnormality in the clamping of the steel coil, i.e., the clamping force may be insufficient. In this case, the control system will promptly send a signal to the crane control system to control the crane to stop lifting in time, thereby preventing a safety accident. Specifically, in this embodiment, the total length of the jaw 102 is 250mm.

[0041] Another aspect of this utility model provides a crane device, which includes the steel coil clamp described above. The beneficial effects of this crane device are the same as those of the steel coil clamp described above, so they will not be described again here.

[0042] In summary, the steel coil clamp and overhead crane of this invention solve the problem that existing steel coil clamps easily scratch steel coils. Therefore, this invention effectively overcomes the various shortcomings of the prior art and has high industrial application value.

[0043] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A steel coil clamp, characterized in that, include: The clamp body includes two clamp arms, each with a jaw at its bottom. Each clamp arm includes a body, and a movable liner is provided on the inner side of the body. The movable liner protrudes from the inside of the body, and the top of the movable liner is connected to the body via a first spring. A clearance groove of a set depth is provided between the jaw and the body.

2. A steel coil clamp according to claim 1, characterized in that, The movable liner can be compressed into the arm body. A first trigger sensor is provided inside the arm body. There is a set distance between the first trigger sensor and the movable liner. When the movable liner is compressed into the arm body, the movable liner can trigger the first trigger sensor to send a clamping signal.

3. A steel coil clamp according to claim 2, characterized in that, A hinge plate is hinged inside the arm body. The first end of the hinge plate is connected to the movable liner plate. A second spring is connected to the second end of the hinge plate. The first end of the hinge plate is lower than the second end of the hinge plate. The first end of the second spring is connected to the second end of the hinge plate. The second end of the second spring extends vertically downward and is connected to the arm body.

4. A steel coil clamp according to claim 1, characterized in that, The movable liner includes a connecting plate and a clamping base plate connected to the connecting plate, wherein the connecting plate is located inside the arm body, the clamping base plate protrudes substantially from the inside of the arm body, and the top of the connecting plate is connected to the arm body via the first spring.

5. A steel coil clamp according to claim 1, characterized in that, The movable liner has protrusions on its surface, which protrude 50 mm beyond the surface of the movable liner.

6. A steel coil clamp according to claim 1, characterized in that, The jaws are equipped with a second trigger sensor, and the distance between the second trigger sensor and the front end of the jaws is 70mm to 100mm, wherein the front end of the jaws is the end away from the arm body.

7. A steel coil clamp according to claim 6, characterized in that, The length of the jaws is 250mm.

8. A steel coil clamp according to claim 1, characterized in that, The depth of the clearance groove is set at 300mm.

9. A crane device, characterized in that, Including the steel coil clamp as described in any one of claims 1 to 8.

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