Rotary material taking hook device

Abstract

The invention discloses a rotary material taking hook device, and relates to the technical field of metal heat treatment. The material disc is used for fixing all the machined parts, and the machined parts are evenly inserted into the material disc in a penetrating mode; the system further comprises; the rotary material taking hook is used for lifting and putting down the whole charging tray, and the rotary material taking hook can penetrate through the limiting groove to enter the charging tray; in the discharging process, after the material disc is placed at a set position, the polygonal head on the material taking hook rotates by a proper angle, the polygonal head is aligned with the polygonal through hole in the material disc, therefore, the rotary hook is separated from the material disc, the rotary material taking hook device achieves automatic material taking through a mechanical structure, the steps and time of manual operation are reduced, and the working efficiency is improved. The discharging and taking efficiency of the heat treatment pit furnace is improved, the automatic device can quickly and accurately complete the taking task, and delay possibly caused by manual operation is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of metal heat treatment, in particular to a rotary material taking hook device. Background Art

[0002] In the heat treatment of slender workpieces, in order to prevent deformation of the workpieces due to gravity during long-term heating, the workpieces need to be placed vertically and hung in a pit furnace for heat treatment. The workpieces need to be taken and discharged in the up and down directions. Due to the long length of the workpieces, the lifting height is high when taking the materials (some lifting distances reach about 8 meters) and the temperature in the furnace is high (some reach 800 degrees), which increases the difficulty of operation. The commonly used method now is manual operation, and the lifting and discharging are carried out by crane. The workpiece loading tray and the crane hook are adjusted remotely by multiple people, which is inefficient and has the risk of accidents. To this end, the present invention proposes a rotating material-taking hook device, which, through the design of the mechanical structure, allows the hook head to be detached from and grasped from the material tray by rotation, reducing the need for direct manual operation, thereby improving the safety and efficiency of the operation. Summary of the invention

[0003] In view of the shortcomings of the prior art, the present invention provides a rotating material picking hook device, which solves the problem that the material picking and placing operations of workpieces in the prior art proposed in the background technology rely on manual labor and crane lifting, which is not only inefficient but also poses a high safety risk in a high temperature environment.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: a rotating material taking hook device, comprising: The tray is used to fix all the workpieces, and the workpieces are evenly interspersed inside the tray; Also includes; The rotating material hook is used to lift and lower the entire material tray. The rotating material hook can pass through the limit slot to the inside of the material tray; The limiting groove is used to fix one end of the bottom of the rotating material taking hook, and the limiting groove is opened on the top surface of the material tray.

[0005] Preferably, the rotary material-collecting hook includes a polygonal head, which is located inside the limiting groove, a protective cover is fixedly installed on the top of the polygonal head, a lifting shaft is inserted inside the protective cover, an upper ratchet is arranged outside one end of the bottom of the lifting shaft, a lower ratchet is arranged below the upper ratchet, and the lower ratchet is embedded inside the polygonal head. The protective cover provides physical protection for the lifting shaft to prevent the intrusion of dust and debris, and also protects the operator from being hurt by moving parts, thereby improving the safety of operation. The polygonal head is located inside the limiting groove, providing additional support and stability, ensuring the stability of the hook during operation, and reducing displacement caused by vibration or impact. The meshing design of the upper ratchet and the lower ratchet realizes the unidirectional rotation of the hook head.

[0006] Preferably, an oblique guide groove is provided on the outer wall surface of the lifting shaft, and teeth cooperating with the guide groove of the lifting shaft are provided on the inner side of the upper ratchet. The oblique guide groove on the surface of the lifting shaft and the teeth on the inner side of the upper ratchet are in sliding contact with each other. When the lifting shaft and the upper ratchet have axial displacement, the upper ratchet will produce a rotational motion under the action of the oblique guide groove of the lifting shaft and the inner teeth of the upper ratchet, and the rotation angle is affected by the axial displacement distance. When the lifting shaft and the upper ratchet have axial displacement, the upper ratchet will produce a rotational motion under the action of the oblique guide groove of the lifting shaft and the inner teeth of the upper ratchet, and the rotation angle is affected by the axial displacement distance, thereby providing a precise mechanical transmission mechanism. This mechanism allows the upper ratchet to accurately control the rotation angle according to the displacement distance of the lifting shaft, thereby ensuring that the head of the hook can be accurately adjusted to the desired position, thereby improving the accuracy and reliability of the operation.

[0007] Preferably, the outer side of the lower ratchet is welded and fixed to the inner wall of the polygonal head, the top end face of the lower ratchet and the top end face of the upper ratchet are provided with raised tooth structures, and the top end face of the lower ratchet and the bottom end face of the upper ratchet are meshed with each other through the tooth structures; the raised tooth structures provided on the top end faces of the lower ratchet and the top end faces of the upper ratchet realize unidirectional rotational movement through mutual meshing; this unidirectional rotation mechanism ensures the stability of the hook during the lifting process, prevents the hook from slipping due to reverse force, and improves the safety of operation.

[0008] Preferably, the cross-section of the polygonal head is a polygonal structure, and the outer surface of the bottom of the polygonal head is a sloped structure, one end of the bottom of the polygonal head is contracted as a whole, and the cross-section of the polygonal head is a triangular structure. This design enables the head to have better adaptability when contacting with the limiting groove of the material tray, and the outer surface of the bottom of the polygonal head is a sloped structure. This slope design helps to contact and separate from the material tray more smoothly during the lifting process; the slope can reduce the friction between the hook and the material tray, making the lifting and lowering operations smoother and improving work efficiency.

[0009] Preferably, the limiting groove is opened in a triangular shape, and the shape of the through hole inside the limiting groove is consistent with the shape of the maximum cross-section of the polygonal head, and the size is slightly larger than the polygonal head to facilitate the passage of the polygonal head, and three triangular grooves are opened on the outer side of the bottom of the limiting groove. The three triangular grooves at the bottom of the limiting groove correspond to the three corners of the top surface of the polygonal head respectively, and the three triangular distribution positions at the bottom of the limiting groove are staggered with the three corner ends of the limiting groove. When the angles of the polygonal head and the limiting groove are staggered, the upward movement of the lifting shaft drives the entire material tray to move upward.

[0010] Preferably, the top edge surface of the limit groove is chamfered, and the limit groove surface and the outer wall surface of the polygonal head are in sliding contact with each other. The surface at the outer corners of the polygonal head is rounded, and the top edge surface of the limit groove is chamfered. This design helps to reduce the friction when the polygonal head slides in the limit groove; the chamfer can disperse the contact stress and reduce the wear at the corners, thereby extending the service life of the components.

[0011] Preferably, the surface of one end of the top of the lifting shaft is threaded, and the surface thread is used for installing and fixing the lifting shaft to rotate the upper ratchet. An annular protrusion structure is provided at one end of the bottom of the lifting shaft, and the top surface of the annular protrusion structure at one end of the bottom of the lifting shaft is in contact with the bottom surface of the polygonal head. The top edge surface of the limiting groove is chamfered. This design helps to reduce the friction of the polygonal head when it slides in the limiting groove; the chamfer can disperse the contact stress and reduce the wear at the corners, thereby extending the service life of the component. The sliding contact between the limit groove surface and the outer wall surface of the polygonal head, due to the design of chamfers and rounded edges, makes the movement of the hook during operation more stable, and the rounded treatment helps to reduce stress concentration that may occur during the operation of the hook; stress concentration often causes cracks or fractures at the corners, and the smooth surface can better disperse the stress and enhance the durability and reliability of the structure.

[0012] Preferably, the tooth structures on the surfaces of the upper ratchet and the lower ratchet are both inclined ratchets, and the directions of the ratchet teeth on the surfaces of the upper ratchet and the lower ratchet are opposite, and the upper ratchet drives the lower ratchet to rotate unidirectionally; when the lifting shaft moves, the inclined teeth of the upper ratchet can drive the inclined teeth of the lower ratchet to realize the unidirectional rotation of the polygonal head, thereby ensuring the stability of the hook device during the lifting process; since the tooth structures of the upper ratchet and the lower ratchet are in opposite directions, when the lifting shaft stops moving, the lower ratchet can use its inclined tooth shape to realize a self-locking function, thereby preventing the polygonal head from accidentally rotating due to gravity or other external forces.

[0013] The present invention provides a rotary material-retrieving hook device, which has the following beneficial effects: (1) The rotating hook device moves downward when picking up materials, passes through the upper limit hole of the material tray and runs to the bottom of the material tray. After the rotating hook runs to the bottom of the material tray, the polygonal head on the hook rotates to an appropriate angle. When the hook moves upward, its corner will hold the material tray and move upward with the material tray, lifting the entire workpiece out of the heating furnace. The rotating hook device realizes automatic picking up of materials through a mechanical structure, reducing the steps and time of manual operation, and improving the discharge and picking efficiency of the heat treatment pit furnace. Especially when the lifting height is high (up to about 8 meters), the automatic device can quickly and accurately complete the picking task, avoiding the delays that may be caused by manual operation; (2) The rotary reclaiming hook device replaces manual operation with an automated rotary reclaiming hook device, which reduces direct contact of workers in a high temperature environment, thereby reducing safety risks during operation. In addition, due to the conical design of the rotary reclaiming hook head, the angle can be automatically corrected even when the limit hole is not fully aligned, further ensuring the stability and safety of the operation; (3) The design of the rotating material hook device allows the workpiece to be picked up and put down in the vertical direction, which helps to prevent the workpiece from being deformed due to gravity during long-term heating. The polygonal head of the rotating material hook cooperates with the material tray to ensure the stability of the workpiece during the lifting process, thereby reducing the deformation of the workpiece caused by improper operation. This solves the problem in the prior art that the material picking and placing operations of the workpiece rely on manual labor and crane lifting, which is not only inefficient but also poses a high safety risk in a high temperature environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the internal structure of the present invention; Figure 3 This is a schematic diagram of the structure of the rotary material-retrieving hook of the present invention; Figure 4 This is a schematic diagram of the connection between the rotary material taking hook and the material tray of the present invention.

[0015] In the figure, 1. Rotating material taking hook; 101. Polygonal head; 102. Lifting shaft; 103. Upper ratchet; 104. Lower ratchet; 105. Protective cover; 2. Material tray; 4. Limiting groove. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example 1

[0017] See also Figure 1-4 The embodiment of the present invention provides a technical solution: a rotary material hook device, including: a material tray 2, which is used for fixing all workpieces, and the workpieces are evenly interspersed inside the material tray 2; it also includes: a rotary material hook 1, which is used for lifting and lowering the entire material tray 2, and the rotary material hook 1 can pass through a limiting groove 4 to the inside of the material tray 2; the limiting groove 4 is used to fix one end of the bottom of the rotary material hook 1, and the limiting groove 4 is opened on the top surface of the material tray 2; the rotary material hook 1 includes a polygonal head 101, and the polygonal head The polygonal head 101 is located inside the limiting groove 4, a protective cover 105 is fixedly installed on the top of the polygonal head 101, a lifting shaft 102 is inserted inside the protective cover 105, an upper ratchet 103 is arranged outside the bottom end of the lifting shaft 102, a lower ratchet 104 is arranged below the upper ratchet 103, and the lower ratchet 104 is embedded in the polygonal head 101, an oblique guide groove is provided on the outer wall surface of the lifting shaft 102, and teeth matching the guide groove of the lifting shaft 102 are arranged on the inner side of the upper ratchet 103, and the oblique guide groove on the surface of the lifting shaft 102 is aligned with the upper ratchet 103. The teeth on the inner side of the wheel 103 are in sliding contact with each other. When the lifting shaft 102 and the upper ratchet 103 have axial displacement, the upper ratchet 103 will rotate under the action of the oblique guide groove of the lifting shaft 102 and the inner teeth of the upper ratchet 103. The rotation angle is affected by the axial displacement distance. When the lifting shaft 102 and the upper ratchet 103 have axial displacement, the upper ratchet 103 will rotate under the action of the oblique guide groove of the lifting shaft 102 and the inner teeth of the upper ratchet 103. The rotation angle is affected by the axial displacement distance. The rotating material hook 1 moves downward, passes through the upper limit hole of the material tray 2 and runs to the bottom of the material tray 2. After the rotating material hook 1 runs to the bottom of the material tray 2, the polygonal head 101 on the rotating material hook 1 rotates to an appropriate angle. When the rotating material hook 1 moves upward, its corner will hold the material tray 2 and move upward with the material tray 2, and the entire workpiece is taken out of the heating furnace. The rotating material hook 1 device realizes automatic material collection through a mechanical structure, reduces the steps and time of manual operation, and improves the discharge and material collection efficiency of the heat treatment pit furnace. Especially when the lifting height is as high as about 8 meters, the automatic device can quickly and accurately complete the material collection task, avoiding the delay that may be caused by manual operation. Example 2

[0018] The embodiment of the present invention provides a technical solution: a rotating material picking hook device, the outer side of the lower ratchet 104 is fixed to the inner wall of the polygonal head 101, the rotation of the lower ratchet will drive the polygonal head 101 to rotate, the top end face of the lower ratchet 104 and the top end face of the upper ratchet 103 are provided with a raised tooth structure, and the top end face of the lower ratchet 104 and the bottom end face of the upper ratchet 103 are meshed with each other through the tooth structure; the top end face of the lower ratchet 104 and the top end face of the upper ratchet 103 are provided with a raised tooth structure, the cross-section of the polygonal head 101 is a triangular structure, and the outer side surface of the bottom of the polygonal head 101 is a sloped structure, one end of the bottom of the polygonal head 101 is contracted as a whole, so that the entire polygonal head 101 can pass through the limiting groove 4 in the middle of the material tray 2, and the cross-section of the polygonal head 101 is a triangular structure The limiting groove 4 is opened in a triangular shape, and the shape of the through hole inside the limiting groove 4 is consistent with the maximum cross-sectional shape of the polygonal head 101, and the size is slightly larger than the polygonal head 101, which is convenient for the polygonal head 101 to pass through. Three triangular grooves are opened on the outer side of the bottom of the limiting groove 4. The three triangular grooves at the bottom of the limiting groove 4 correspond to the three corners of the top surface of the polygonal head 101, and the three triangular distribution positions at the bottom of the limiting groove 4 are dislocated with the three corner ends of the limiting groove 4. When the angles of the polygonal head 101 and the limiting groove 4 are staggered, the upward movement of the lifting shaft 102 drives the entire material tray to move upward. The stability of the structure is ensured by the fixed installation of the lower rack 104 and the inner wall of the polygonal head 101. At the same time, the toothed structure of the lower rack 104 and the upper rack 103 is meshed to achieve efficient one-way transmission. The triangular structure and the inclined bottom design of the polygonal head 101 optimize the coordination between the hook and the material tray, making its grabbing and releasing actions smoother. In addition, the triangular shape of the limiting groove 4 is consistent with the maximum cross-sectional shape of the polygonal head 101, and cooperates with the three triangular grooves at the bottom to improve the positioning accuracy and self-locking function of the hook and prevent accidental rotation or displacement. Example 3

[0019] The embodiment of the present invention provides a technical solution: a rotating material hook device, the top edge surface of the limit groove 4 is chamfered, and the surface of the limit groove 4 and the outer wall surface of the polygonal head 101 are in sliding contact with each other, the surface of the outer corner of the polygonal head 101 is smooth, the surface of the top end of the lifting shaft 102 is threaded, and the surface thread is used to install and fix the lifting shaft 102, and the bottom end of the lifting shaft 102 is provided with an annular protruding structure, and the top surface of the annular protruding structure at the bottom end of the lifting shaft 102 is in contact with the bottom surface of the polygonal head 101. The top edge surface of the limit groove 4 is chamfered, the tooth structures on the surface of the upper ratchet 103 and the lower ratchet 104 are both inclined ratchet teeth, and the ratchet directions of the upper ratchet 103 and the lower ratchet 104 are opposite. The inclined tooth structures on the surface of the upper ratchet 103 and the lower ratchet 104 are opposite in tooth direction. This design enables the two racks to achieve effective one-way transmission. The chamfer design of the top edge of the limit groove 4 and the rounded corners of the polygonal head 101 effectively reduce the friction between the components and improve the wear resistance, thereby extending the service life. At the same time, the thread design on the top of the lifting shaft 102 ensures the stability of its installation, and the fit of the annular protruding structure at the bottom with the bottom surface of the polygonal head 101 further enhances the stability of the entire structure. In addition, the inclined tooth structure design of the upper rack 103 and the lower rack 104, and the opposite tooth direction, achieves precise one-way transmission and ensures the stability and safety of the hook during the lifting process. The limit groove 4 provides precise positioning and support for the polygonal head 101.

[0020] Working principle: When taking materials, the rotating material hook 1 moves downward, passes through the limiting slot 4 on the material tray 2 to the bottom of the material tray 2. If the rotating material hook 1 and the limiting slot 4 of the material tray 2 are not aligned, the angle will be automatically corrected by passing through the through hole of the material tray 2 because the head of the rotating material hook 1 is conical; after the rotating material hook 1 moves to the bottom of the material tray 2, the polygonal head 101 on the rotating material hook 1 rotates to an appropriate angle. When the rotating material hook 1 moves upward, its corner will hold the material tray 2 and move upward with the material tray 2, and the entire workpiece will be lifted out of the heating furnace; The outer periphery of the lifting shaft 102 is provided with an oblique guide groove, and the inner side of the upper ratchet 103 is provided with teeth that cooperate with the guide groove of the lifting shaft 102. When the lifting shaft 102 and the upper ratchet 103 are displaced downward, the upper ratchet 103 produces a rotational motion around the lifting shaft 102 under the cooperation of the guide groove and the teeth. The rotation angle of the upper ratchet 103 can be controlled by controlling the displacement distance of the lifting shaft 102. The lower ratchet 104 is fixed together with the polygonal head 101. The teeth of the upper ratchet 103 and the lower ratchet 104 are on the end faces. The two are engaged with each other through the tooth shape. The upper ratchet 103 can drive the lower ratchet 104 to achieve unidirectional rotation. When the lifting shaft 102 moves downward and the upper ratchet 103 produces a relative displacement, the upper ratchet 103 will drive the lower ratchet 104 to rotate together, thereby driving the polygonal head 101 to rotate a certain angle, and when the lifting shaft 102 moves upward, the upper ratchet 103 and the lower ratchet 104 will be disengaged.

[0021] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the attached claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0022] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. Rotating material hook device, including: A material tray (2) used for fixing all the workpieces, the workpieces being evenly interspersed inside the material tray (2); Features: Also includes; A rotating material-collecting hook (1) used for lifting and lowering the entire material tray (2); the rotating material-collecting hook (1) can pass through the limiting groove (4) to the inside of the material tray (2); A limiting groove (4) is used to fix one end of the bottom of the rotating material taking hook (1), and the limiting groove (4) is opened on the top surface of the material tray (2).

2. The rotary material reclaiming hook device according to claim 1 is characterized in that: The rotary material-collecting hook (1) comprises a polygonal head (101), the polygonal head (101) being located inside the limiting groove (4), a protective cover (105) being fixedly mounted on the top of the polygonal head (101), a lifting shaft (102) being inserted inside the protective cover (105), an upper ratchet (103) being arranged outside one end of the bottom of the lifting shaft (102), a lower ratchet (104) being arranged below the upper ratchet (103), and the lower ratchet (104) being embedded inside the polygonal head (101).

3. The rotary material reclaiming hook device according to claim 2 is characterized in that: An oblique guide groove is provided on the outer wall surface of the lifting shaft (102), and teeth cooperating with the guide groove of the lifting shaft (102) are provided on the inner side of the upper ratchet (103). The oblique guide groove on the surface of the lifting shaft (102) and the teeth on the inner side of the upper ratchet (103) are in sliding contact with each other. When the lifting shaft (102) and the upper ratchet (103) are axially displaced, the upper ratchet (103) will rotate under the action of the oblique guide groove of the lifting shaft (102) and the teeth on the inner side of the upper ratchet (103), and the rotation angle is affected by the axial displacement distance.

4. The rotary material hook device according to claim 2 is characterized in that: The outer side of the lower ratchet (104) is welded to the inner wall of the polygonal head (101) to be fixed, and the rotation of the lower ratchet will drive the polygonal head (101) to rotate. The top end surface of the lower ratchet (104) and the top end surface of the upper ratchet (103) are provided with raised tooth structures, and the top end surface of the lower ratchet (104) and the bottom end surface of the upper ratchet (103) are meshed with each other through the tooth structures.

5. The rotary material reclaiming hook device according to claim 2 is characterized in that: The cross section of the polygonal head (101) is a polygonal structure, and the outer surface of the bottom of the polygonal head (101) is an inclined structure. One end of the bottom of the polygonal head (101) is contracted as a whole, so that the entire polygonal head (101) can pass through the limiting groove (4) in the middle of the material tray (2). For ease of explanation, a triangle is taken as an example below.

6. The rotary material reclaiming hook device according to claim 1 is characterized in that: The limiting groove (4) is opened in a polygonal shape (hereinafter, a triangle is used as an example for explanation), and the shape of the internal through hole of the limiting groove (4) is consistent with the maximum cross-sectional shape of the polygonal head (101), and the size is slightly larger than the polygonal head (101), so as to facilitate the polygonal head (101) to pass through, and three triangular grooves are opened on the outer side of the bottom of the limiting groove (4), and the three triangular grooves at the bottom of the limiting groove (4) respectively correspond to the three corners of the top surface of the polygonal head (101), and the three triangular distribution positions at the bottom of the limiting groove (4) are staggered with the three corner ends of the limiting groove (4). When the angles of the polygonal head (101) and the limiting groove (4) are staggered, the upward movement of the lifting shaft (102) drives the entire material tray to move upward.

7. The rotary material-retrieving hook device according to claim 1, characterized in that: The top edge surface of the limiting groove (4) is chamfered, and the surface of the limiting groove (4) and the outer wall surface of the polygonal head (101) are in sliding contact with each other, and the surface of the outer corners of the polygonal head (101) is rounded.

8. The rotary material-retrieving hook device according to claim 2, characterized in that: The surface of one end of the top of the lifting shaft (102) is threaded, and the thread on the surface is used to install and fix the lifting shaft (102) so as to rotate the upper ratchet (103). An annular protruding structure is provided at one end of the bottom of the lifting shaft (102), and the top surface of the annular protruding structure is in contact with the bottom surface of the polygonal head (101).

9. The rotary material-retrieving hook device according to claim 2, characterized in that: The tooth structures on the surfaces of the upper ratchet (103) and the lower ratchet (104) are both inclined ratchet teeth, and the directions of the ratchet teeth on the surfaces of the upper ratchet (103) and the lower ratchet (104) are opposite, so that the upper ratchet (103) drives the lower ratchet (104) to rotate in one direction.

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