Saw blade lifting appliance

Abstract

The utility model provides a saw blade lifting appliance which comprises a lifting frame body, a lifting ring and at least two lifting arms, the lifting ring is arranged on the lifting frame body, the two lifting arms are both hinged to the lifting frame body, the lifting arms are arranged in the length direction of the lifting frame body around the hinged axis in a swinging mode, and the two lifting arms are oppositely arranged on the two sides of the lifting ring. Hanging structures are arranged at the ends, away from the hanger body, of the suspension arms. According to the application, two hanging holes spaced on the saw blade are hung through two suspension arms, so that the saw blade is provided with a hanging hole between the two suspension arms, after the saw blade is hung away from the ground, the hanging hole is located at the uppermost part of the saw blade, the gravity center of the saw blade is located on the plumb line of the hanging hole, and the saw blade is hung on a saw blade standing frame through the hanging hole, so that the saw blade can stand on the saw blade standing frame. And when the saw blade is transferred from the saw blade lifting appliance to the saw blade standing frame, the gravity center position of the saw blade is not changed, so that the saw blade does not shake, and the transferring stability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of saw blade hoisting equipment, in particular to a saw blade hoist. Background Art

[0002] In the operation of the steel rolling mill, there will be multiple large saw machines operating at the same time on the hot-rolled steel production line. In production, the service life of the saw blade is limited and the saw blade is used in large quantities, so a large number of saw blades are often needed. The new saw blades used are generally laid flat on the table, and the old saw blades are leaning against the wall or next to the equipment. With the transformation and upgrading of the factory, higher requirements are put forward for the management of the processing site. All new and old saw blades are stored in saw blade static racks to facilitate standardized management of the processing site. The existing design of the saw blade static rack is provided with a hanging pin, and a plurality of hanging holes are arranged axially on the saw blade. The saw blade is hung on the saw blade static rack through a single hanging hole. At this time, the hanging pin is located in the hanging hole at the top of the saw blade. When using existing lifting equipment to lift the saw blade, it is also necessary to lift it through the hanging hole on a single saw blade. After the saw blade is lifted by the lifting equipment, the center of gravity of the saw blade is located on the plumb line of the hanging hole through which the lifting equipment passes. At this time, the lifting equipment is passed through the uppermost hanging hole of the saw blade. Therefore, when it is transferred to the static frame, the uppermost hanging hole of the saw blade is occupied by the lifting equipment and can only be hung with the hanging pin on the static frame through other hanging holes. At this time, the center of gravity of the saw blade is still on the plumb line of the hanging hole hung with the lifting equipment, and it is necessary to slowly transfer the center of gravity to the plumb line of the hanging hole hung with the hanging pin. At this time, slowly lower the lifting equipment, and the saw blade will rotate along the hanging pin on the static frame under the action of gravity until the center of gravity of the saw blade is transferred to the plumb line passing through the hanging pin. When the saw blade is hoisted using the existing hoisting equipment, the saw blade will rotate due to the change in the center of gravity of the saw blade when it is placed on the saw blade resting frame; when the lowering speed is too fast, the violent rotation may easily cause a safety accident, threatening the life and property of the operator; when the lowering speed is too slow, the hoisting time is long, slowing down the production and processing speed, which is not economical.

[0003] In summary, there is an urgent need for a saw blade hanger to solve the problems existing in the prior art. Utility Model Content

[0004] The utility model aims to provide a saw blade hanger, which aims to solve the problem that the existing hoisting equipment will rotate and become unstable when the saw blade is hoisted to a static frame. The specific technical solution is as follows:

[0005] A saw blade hanger comprises a hanger body, a hanging ring and at least two hanging arms, the hanging ring is arranged on the hanger body, two hanging arms are hinged on the hanger body, the hanging arms are swingably arranged around the hinge axis in the length direction of the hanger body, the two hanging arms are relatively arranged on both sides of the hanging ring, and a hanging structure is provided at one end of the hanging arm away from the hanger body.

[0006] Furthermore, a laterally opening limiting groove is provided in the suspension arm, and the limiting grooves on the two suspension arms are located in the same plane.

[0007] Furthermore, the limiting groove separates the lower part of the boom to form a front arm and a rear arm, and the hanging structure includes a hanging rod, a through hole is provided on the front arm, and a corresponding threaded hole is provided on the rear arm, one end of the hanging rod is provided with a thread, and the other end is provided with a rotating part, the threaded end of the hanging rod is threadedly matched with the threaded hole, and the rotating part end of the hanging rod is located outside the through hole, and the diameter of the through hole is larger than the diameter of the threaded end of the hanging rod.

[0008] Furthermore, the hanging structure also includes a limit seat and a limit block, the limit block is fixedly connected to the middle part of the hanging rod, the limit seat is fixedly connected to the forearm, a accommodating cavity is provided in the limit seat, the limit block is movably connected in the accommodating cavity, and the hanging rod runs through the entire limit seat.

[0009] Furthermore, the hanging structure also includes an elastic member, which is located in the accommodating groove, and one end of the elastic member is connected to the limiting block, and the other end is connected to the forearm.

[0010] Preferably, the limiting block is disc-shaped, and the limiting groove is a cylindrical groove.

[0011] Furthermore, the hanger body includes a hanger rod, a sliding sleeve and a limit piece. Limit holes are respectively provided at both ends of the hanger rod. The plurality of limit holes are arranged at intervals along the axial direction of the hanger rod. Sleeves are respectively provided at both ends of the hanger rod. The first end of the sliding sleeve is sleeved on the hanger rod and movably arranged along the axial direction of the hanger rod. The limit piece is inserted into the limit hole. The limit piece passes through the side of the sliding sleeve radially and extends into the limit hole, thereby positioning and connecting the sliding sleeve and the hanger rod.

[0012] Furthermore, a protective pad is provided on one side of the forearm close to the saw blade, and a protective pad is also provided on one side of the rear wall close to the saw blade.

[0013] Furthermore, a first guide plate is provided at one end of the forearm away from the lifting ring, and a second guide plate is provided at one end of the rear arm away from the lifting ring, and an outer eight-shaped structure for guiding the saw blade is formed between the first guide plate and the second guide plate.

[0014] Preferably, the first guide plate and the second guide plate are both fan-shaped.

[0015] The application of the technical solution of the utility model has the following beneficial effects:

[0016] The two hanging holes spaced apart on the saw blade are hung by two hanging arms, so that the saw blade has a hanging hole between the two hanging arms. After the saw blade is lifted off the ground, the hanging hole is at the top of the saw blade, and the center of gravity of the saw blade is located on the plumb line of the hanging hole. The saw blade is hung on the saw blade static frame through the hanging hole, and the saw blade hanger is released. During the process of transferring the saw blade from the saw blade hanger to the saw blade static frame, the center of gravity of the saw blade does not change, so the saw blade does not shake, which improves the stability of the transfer; secondly, the saw blade can move quickly during the lifting process, and the lifting is stable, which is conducive to saving lifting time and improving the lifting work efficiency. In addition, the hanging arm is rotated around the hinge axis of the hanger body and the hanging arm, so that the hanging structures on the two hanging arms are close to or away from each other, so as to be suitable for saw blades with different hanging hole spacings corresponding to different sizes.

[0017] In addition to the above-described purposes, features and advantages, the present invention has other purposes, features and advantages. The present invention will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0019] Figure 1 It is a schematic diagram of the overall structure of a saw blade hanger of the utility model;

[0020] Figure 2 This is a schematic diagram of the overall structure of a saw blade hanger of the utility model after the saw blade is hung;

[0021] Figure 3 It is a partial cross-sectional view of a saw blade hanger of the utility model;

[0022] Figure 4 yes Figure 3 Magnified view at A in the middle;

[0023] Among them, 1. hanger body; 11. hanging rod; 111. limiting hole; 12. sliding sleeve; 13. limiting member; 2. lifting ring; 3. hanging arm; 31. front arm; 311. through hole; 32. rear arm; 321. threaded hole; 4. hanging structure; 41. hanging rod; 411. rotating part; 42. limiting seat; 421. accommodating cavity; 43. limiting block; 44. elastic member; 5. limiting groove; 6. protective pad; 7. first guide plate; 8. second guide plate; 9. saw blade; 91. hanging hole. DETAILED DESCRIPTION

[0024] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively below, and preferred embodiments of the present invention are given. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0026] Example:

[0027] See also Figure 1-Figure 4 , this embodiment provides a saw blade hanger:

[0028] The technical solution applied in this embodiment is specifically: a saw blade hanger, including a hanger body 1, a lifting ring 2 and two lifting arms 3, the lifting ring 2 is arranged on the hanger body 1, the two lifting arms 3 are hinged on the hanger body 1, the lifting arms 3 are swingably arranged around the hinge axis in the length direction of the hanger body 1, the two lifting arms 3 are relatively arranged on both sides of the lifting ring 2, and the end of the lifting arm 3 away from the hanger body 1 is provided with a hanging structure 4 for hanging the saw blade 9.

[0029] It can be understood that the saw blade 9 is hoisted by the hanging structures 4 on the two hanging arms 3. During the hoisting process of the saw blade 9, the hanging structures 4 on the two hanging arms 3 are hung with a hanging hole 91 at intervals. After the installation is completed, the saw blade 9 is hoisted by a crane. After the saw blade 9 is hoisted, the hanging hole 91 between the two hanging arms 3 is located in the middle of the top of the saw blade 9. At this time, the center of gravity of the saw blade 9 is located on the plumb line of the hanging hole 91. Therefore, when the saw blade 9 is transferred to the saw blade 9 static frame, the saw blade 9 is hoisted through the hanging hole 91. The saw blade 9 is hung and the saw blade hanger is released. In the process of transferring the saw blade 9 from the saw blade hanger to the saw blade 9 static rack, the center of gravity of the saw blade 9 does not change, and the saw blade 9 will not rotate. Therefore, the saw blade 9 can be smoothly hoisted. First, the saw blade 9 is transferred from the table to the saw blade 9 static rack to prevent the saw blade 9 from rotating during the transfer process. In addition, the saw blade 9 can move quickly during the hoisting process, and the hoisting is stable, which is conducive to saving hoisting time and improving hoisting work efficiency. In addition, the arm 3 is rotated around the hinge shaft of the hanger body 1 and the arm 3, so that the hanging structures 4 on the two arms 3 are close to or away from each other, so as to be suitable for saw blades 9 with different hanging hole 91 hole spacings corresponding to different sizes.

[0030] Furthermore, the hanger body 1 includes a hanger rod 11, a sleeve 12 and a limit piece 13. Limit holes 111 are respectively provided at both ends of the hanger rod 11. The plurality of limit holes 111 are arranged at intervals along the axial direction of the hanger rod 11. Sleeves 12 are respectively provided at both ends of the hanger rod 11. In the present embodiment, there are two hanger arms 3 and two sleeves 12, and each sleeve 12 corresponds to one hanger arm 3. The first end of the sleeve 12 is sleeved on the hanger rod 11 and movably arranged along the axial direction of the hanger rod. The limit piece 13 is inserted into the limit hole 111. The limit piece 13 radially passes through the side of the sleeve 12 and extends into the limit hole 111, thereby positioning and connecting the sleeve 12 with the hanger rod 11. In the present embodiment, the limit piece 13 adopts a screw, and the screw is threadedly connected to the sleeve 12. When it is necessary to limit the position of the sleeve 12, turn the screw to make the screw extend into the limiting hole 111 at the corresponding position of the screw. At this time, the relative position of the sleeve 12 and the suspension rod 11 is limited. When it is necessary to move the relative position of the sleeve 12 relative to the suspension rod 11, turn the screw to retract the screw from the limiting hole 111. At this time, the sleeve 12 and the suspension rod 11 are unlocked, and the sleeve 12 is slid to move the sleeve 12 to the required position, and the screw is made to correspond to the limiting hole 111 at that location on the suspension rod 11, and the screw is turned to make the screw extend into the limiting hole 111 to adjust the position of the sleeve 12 relative to the suspension rod 11. By adjusting the relative position of the sleeve 12 and the suspension rod 11, the relative distance between the two suspension arms 3 can be adjusted, so that the saw blade 9 transfer frame can adapt to saw blades 9 with different hole spacings of the hanging holes 91. When the hanging holes 91 on the saw blade 9 are close in distance, the two sliding sleeves 12 on the suspension rod 11 can be adjusted to reduce the distance between the two sliding sleeves 12, so as to facilitate hanging the hanging structures 4 on the two suspension arms 3 to the hanging holes 91 on the saw blade 9; when the hanging holes 91 on the saw blade 9 are far in distance, the two sliding sleeves 12 on the suspension rod 11 can be adjusted to increase the distance between the two sliding sleeves 12, which is suitable for the situation where the hanging holes 91 of the saw blade 9 are far in distance.

[0031] Furthermore, a laterally open limiting groove 5 is provided in the suspension arm 3 for limiting the position of the saw blade 9. The limiting grooves 5 on the two suspension arms 3 are located in the same plane so that the saw blade 9 can pass through the limiting grooves 5 on the two suspension arms 3. During the process of hoisting the saw blade 9, the saw blade 9 is limited in the limiting groove 5 to prevent the saw blade 9 from shaking back and forth. Secondly, the position of the saw blade 9 is limited by the limiting groove 5 to prevent the saw blade 9 from falling off the suspension arm 3 and causing a safety accident.

[0032] Furthermore, the limiting groove 5 separates the lower part of the boom 3 into a front arm 31 and a rear arm 32. The hanging structure 4 includes a hanging rod 41. The front arm 31 is provided with a through hole 311, and the rear arm 32 is correspondingly provided with a threaded hole 321. One end of the hanging rod 41 is provided with a thread, and the other end is provided with a rotating part 411. The threaded end of the hanging rod 41 is threadedly matched with the threaded hole 321. The rotating part 411 end of the hanging rod 41 is located outside the through hole 311. The diameter of the through hole 311 is larger than the diameter of the threaded end of the hanging rod 41. When the saw blade 9 is hung, the hanging hole 91 on the saw blade 9 is first aligned with the through hole 311 on the front arm 31 and the threaded hole 321 on the rear arm 32, and the threaded end of the hanging rod 41 is passed through the through hole 311 and the hanging hole 91 in sequence, and is threadedly connected in the threaded hole 321 to hang and limit the saw blade 9. When the hanging rod 41 is matched with the threaded hole 321, the rotating part 411 of the hanging rod 41 is rotated to make the threaded end of the hanging rod 41 threadedly connected with the threaded hole 321. In this embodiment, the hanging rod 41 is a screw, and the rotating part 411 is the head of the screw. In other embodiments, the hanging rod 41 can also be an ordinary rod, one end of which is threaded, and the rotating part 411 of the ordinary rod can be a hexagonal prism to facilitate the use of a wrench to rotate it, or other structures that are convenient for using a wrench or tool to rotate.

[0033] Furthermore, the hanging structure 4 further includes a limiting seat 42 and a limiting block 43, the limiting block 43 is fixedly connected to the middle part of the hanging rod 41 by welding, the limiting seat 42 is fixedly connected to the forearm 31 and is opposite to the through hole 311 on the forearm 31, a receiving cavity 421 is provided in the limiting seat 42, the limiting block 43 is movably connected in the receiving cavity 421, and the hanging rod 41 passes through the entire limiting seat 42. By limiting the limiting block 43 in the receiving cavity 421, after the hanging rod 41 is screwed out of the threaded hole 321, the hanging rod 41 is prevented from falling.

[0034] Furthermore, the hanging structure 4 further includes an elastic member 44, which is located in the receiving groove, and one end of the elastic member 44 is connected to the limit block 43, and the other end is connected to the front arm 31. After the hanging rod 41 is screwed out of the threaded hole 321, the hanging rod 41 is pushed away from the rear arm 32 under the elastic force of the spring, so that the hanging rod 41 does not occupy the limit groove 5, so as to prevent the saw blade 9 from being blocked by the hanging rod 41 when entering the limit groove 5 and failing to smoothly enter the limit groove 5. In this embodiment, the elastic member 44 is a compression coil spring, and in other embodiments, the elastic member 44 can also be a gas spring, a rubber spring, or other structures or components that can store elastic potential energy.

[0035] Furthermore, the limiting block 43 is disc-shaped, the limiting groove 5 is a cylindrical groove, and the diameter of the disc of the limiting block 43 is smaller than the diameter of the limiting groove 5, so that the limiting block 43 can rotate smoothly in the limiting groove 5.

[0036] Furthermore, a protective pad 6 is provided on the side of the forearm 31 close to the saw blade 9, and a protective pad 6 is also provided on the side of the rear wall close to the saw blade 9. When the saw blade 9 is hung on the saw blade 9 transfer frame, the saw blade 9 needs to be inserted into the limiting groove 5, and a protective pad 6 is provided on the side of the forearm 31 close to the saw blade 9 and the side of the rear wall close to the saw blade 9 to prevent the saw blade 9 from colliding with the forearm 31 or the rear wall when inserted into the limiting groove 5, causing damage to the saw teeth on the saw blade 9. In addition, during the hoisting process of the saw blade 9, the saw blade 9 may shake in the limiting groove 5, so as to prevent the saw blade 9 from directly colliding with the forearm 31 or the rear arm 32 when shaking, causing damage to the saw teeth on the saw blade 9.

[0037] Furthermore, a first guide plate 7 is provided at one end of the front arm 31 away from the lifting ring 2, and a second guide plate 8 is provided at one end of the rear arm 32 away from the lifting ring 2, and an outer eight-shaped structure for guiding the saw blade 9 is formed between the first guide plate 7 and the second guide plate 8. When the saw blade 9 is placed in the limiting groove 5, under the guidance of the first guide plate 7 and the second guide plate 8, the saw blade 9 can enter the limiting groove 5 more easily, and the saw blade 9 can be slid into the limiting groove 5 without precise docking, which reduces the docking time and improves the work efficiency.

[0038] Furthermore, the first guide plate 7 and the second guide plate 8 are both fan-shaped, and the saw blade 9 can be placed in the fan-shaped first guide plate 7 and the fan-shaped second guide plate 8 from different angles, thereby increasing the guiding range.

[0039] The working principle of the technical scheme of the utility model is as follows: when the saw blade 9 is hoisted, the top saw blade 9 of the stack of saw blades 9 is first padded with a wooden stick, so that a certain gap is maintained between the top saw blade 9 and the saw blade 9 below it, and the hanging rod 41 on the suspension arm 3 is screwed out from the threaded hole 321, and then the suspension arm 3 is inserted on the saw blade 9, so that the rear arm 32 is located below the saw blade 9, and the front arm 31 is located above the saw blade 9, and under the guidance of the first guide plate 7 and the second guide plate 8, the saw blade 9 smoothly enters the limit groove 5, so that the through hole 311 on the front arm 31 and the threaded hole 321 on the rear wall are aligned with one of the hanging holes 91 on the saw blade 9, the hanging rod 41 is pressed, and the elastic member 44 is compressed, and the hanging rod 41 is rotated so that the hanging rod 41 cooperates with the threaded hole 321, so as to realize the installation of the hanging rod 41. Another suspension arm 3 is installed relative to the suspension arm 3 with a hanging hole 91 spaced apart. After the saw blade 9 is installed on the saw blade 9 transfer frame, the saw blade 9 transfer frame and the saw blade 9 are slowly lifted by a crane through the lifting ring 2. When the saw blade 9 and the saw blade 9 transfer frame are stable, the hanging hole 91 between the two hanging arms 3 is located directly above the saw blade 9, and at this time, the center of gravity of the saw blade 9 is located on the plumb line of the hanging hole 91. The saw blade 9 is transferred to the static frame, and the static frame hangs the saw blade 9 through the hanging hole 91 at the top of the saw blade 9. The saw blade 9 transfer frame is released to complete the transfer of the saw blade 9. When the saw blade 9 is transferred from the saw blade 9 transfer frame to the saw blade 9 static frame, the center of gravity of the saw blade 9 does not change, and the saw blade 9 does not rotate, thereby improving the safety of the saw blade 9 transfer.

[0040] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A saw blade hanger, characterized in that: The invention comprises a hanger body (1), a lifting ring (2) and at least two lifting arms (3), wherein the lifting ring (2) is arranged on the hanger body (1), the two lifting arms (3) are hinged on the hanger body (1), the lifting arms (3) are swingably arranged around a hinge axis in the length direction of the hanger body (1), the two lifting arms (3) are relatively arranged on both sides of the lifting ring (2), and a hanging structure (4) is provided at one end of the lifting arm (3) away from the hanger body (1).

2. A saw blade hanger according to claim 1, characterized in that: A limiting groove (5) with a lateral opening is provided in the suspension arm (3), and the limiting grooves (5) on the two suspension arms (3) are located in the same plane.

3. A saw blade hanger according to claim 2, characterized in that: The limiting groove (5) separates the lower part of the boom (3) into a front arm (31) and a rear arm (32); the hanging structure (4) comprises a hanging rod (41); a through hole (311) is provided on the front arm (31); a threaded hole (321) is correspondingly provided on the rear arm (32); one end of the hanging rod (41) is provided with a thread, and the other end is provided with a rotating part (411); the threaded end of the hanging rod (41) is threadedly matched with the threaded hole (321); the rotating part (411) end of the hanging rod (41) is located outside the through hole (311); the diameter of the through hole (311) is larger than the diameter of the threaded end of the hanging rod (41).

4. A saw blade hanger according to claim 3, characterized in that: The hanging structure (4) further comprises a limiting seat (42) and a limiting block (43); the limiting block (43) is fixedly connected to the middle part of the hanging rod (41); the limiting seat (42) is fixedly connected to the forearm (31); a receiving cavity (421) is provided in the limiting seat (42); the limiting block (43) is movably connected in the receiving cavity (421); and the hanging rod (41) runs through the entire limiting seat (42).

5. A saw blade hanger according to claim 4, characterized in that: The hanging structure (4) further comprises an elastic member (44), wherein the elastic member (44) is located in the receiving groove, and one end of the elastic member (44) is connected to the limiting block (43), and the other end is connected to the forearm (31).

6. A saw blade hanger according to claim 4, characterized in that: The limiting block (43) is disc-shaped, and the limiting groove (5) is a cylindrical groove.

7. A saw blade hanger according to any one of claims 1 to 6, characterized in that: The hanger body (1) comprises a hanger rod (11), a sliding sleeve (12) and a limiting member (13). The two ends of the hanger rod (11) are respectively provided with limiting holes (111). The plurality of limiting holes (111) are arranged at intervals along the axial direction of the hanger rod (11). The two ends of the hanger rod (11) are respectively provided with sliding sleeves (12). The first end of the sliding sleeve (12) is sleeved on the hanger rod (11) and is movably arranged along the axial direction of the hanger rod. The limiting member (13) is inserted into the limiting hole (111). The limiting member (13) radially passes through the side surface of the sliding sleeve (12) and extends into the limiting hole (111), thereby positioning and connecting the sliding sleeve (12) and the hanger rod (11).

8. The saw blade hanger according to claim 3, characterized in that: A protective pad (6) is provided on the side of the forearm (31) close to the saw blade (9), and a protective pad (6) is also provided on the side of the rear wall close to the saw blade (9).

9. The saw blade hanger according to claim 3, characterized in that: A first guide plate (7) is provided at one end of the front arm (31) away from the lifting ring (2), and a second guide plate (8) is provided at one end of the rear arm (32) away from the lifting ring (2), and an outer eight-shaped structure for guiding the saw blade (9) is formed between the first guide plate (7) and the second guide plate (8).

10. A saw blade hanger according to claim 9, characterized in that: The first guide plate (7) and the second guide plate (8) are both fan-shaped.

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