Gantry hook pin shaft protection device

Abstract

The utility model discloses a gantry hook pin shaft protection device, which belongs to the technical field of steelmaking workshop hoisting devices and comprises a bridge frame and hook bodies connected with the bridge frame through lifting lugs, the top ends of the hook bodies are hinged with the lifting lugs through pin shafts, the lifting lugs are arranged on two sides of each hook body, grooves are formed in one sides, far away from each other, of the two lifting lugs, and the two lifting lugs are connected with the bridge frame through pin shafts. Each lifting lug is connected with a protective plate used for sealing the groove of the lifting lug through a connecting mechanism, and meanwhile each lifting lug is provided with a fixing mechanism used for fixing the protective plate and the corresponding lifting lug together. According to the utility model, the connecting mechanism is arranged, so that the protective plate and the lifting lug can be connected together; and meanwhile, through a spring rod in the connecting mechanism, the protective plate connected with the lifting lug can move in the horizontal direction, so that the protective plate can be conveniently moved into the groove, the protective plate moving into the groove can seal the groove, and the end, located in the groove, of the pin shaft is protected.

Description

Technical Field

[0001] The utility model belongs to the technical field of steel-making workshop lifting devices, in particular to the technical field of gantry hooks, and specifically relates to a gantry hook pin shaft protection device. Background Art

[0002] A gantry hook is a special hook used for gantry cranes. It is usually made of cast steel or forged steel and has a more complex structure, including parts such as the hook body, hook tip, and buckle. Compared with ordinary hooks, the gantry hook has a more complex structure and a stronger load-bearing capacity. It is mainly used in large lifting equipment such as gantry cranes, and is suitable for lifting heavy objects such as large machinery and building materials. Since gantry cranes usually need to move horizontally and lift vertically, the fixed gantry hook needs to be operated in conjunction with the movement of the gantry crane when in use.

[0003] The gantry hook in the steelmaking workshop is usually used to lift the ladle. However, a large amount of heat is emitted during the lifting process of the ladle, which increases the temperature of the pin connecting the gantry hook and the bridge, making the pin easily damaged. At the same time, the molten steel splashed when the ladle is tipped may splash on the pin, causing damage to the pin.

[0004] In the prior art, when protecting the pin of the gantry hook, Figure 1 As shown, a guard plate is hung on the outside of the lifting ear. Due to the large size of the guard plate and the small distance between the two guard plates, the guard plate is easily hit when the hook of the ladle is removed from the gantry hook, causing the guard plate to deform and fall off, making it impossible to continue to protect the pin shaft. The machine needs to be stopped to reinstall the guard plate, affecting production. Utility Model Content

[0005] In order to solve the problem that the guard plate in the prior art is easily damaged, the utility model provides a gantry hook pin shaft protection device, which can prevent the guard plate from being damaged and prevent the production from being affected by stopping the machine to reinstall the guard plate.

[0006] The technical solution adopted by the gantry hook pin shaft protection device of the utility model is:

[0007] A gantry hook pin shaft protection device comprises a bridge frame and a hook body connected to the bridge frame through a lifting ear, wherein the top end of the hook body is hinged to the lifting ear through a pin shaft, lifting ears are arranged on both sides of each hook body, and grooves are arranged on the sides away from each other of the two lifting ears, each lifting ear is connected to a guard plate for closing its own groove through a connecting mechanism, and each lifting ear is provided with a fixing mechanism for fixing the guard plate and the corresponding lifting ear together.

[0008] A further improvement of the technical solution of the utility model is that: the pin shaft passes through the top end of the hook body, and the two ends of the pin shaft respectively extend into the grooves of the corresponding lifting ears; wherein the hook body is located at the center position of the pin shaft.

[0009] A further improvement of the above technical solution of the utility model is that: the connecting mechanism includes a spring rod fixedly connected to the inner wall of the groove, and a vertical connecting plate is fixedly connected to one side of the spring rod away from the inner wall of the groove.

[0010] A further improvement of the above technical solution of the utility model is that: the spring rod is horizontally arranged in the groove, and a plurality of spring rods are arranged in the groove.

[0011] A further improvement of the technical solution of the utility model is that the guard plate is connected to the connecting plate by a first bolt.

[0012] A further improvement of the above technical solution of the utility model is that a first through hole is opened at a position of the guard plate corresponding to the first bolt, and a first threaded hole connected to the first through hole is opened at a position of the connecting plate corresponding to the first bolt.

[0013] A further improvement of the above technical solution of the utility model is that: the fixing mechanism comprises a fixing block detachably connected to the inner side wall of the groove.

[0014] A further improvement of the above technical solution of the utility model is that: the fixing block is detachably connected to the lifting ear via a fixing bolt.

[0015] A further improvement of the technical solution of the utility model is that a second through hole is opened at the position of the fixing block corresponding to the fixing bolt, and a second threaded hole connected to the groove and the second through hole and matched with the corresponding fixing bolt is opened at the position of the lifting ear corresponding to the fixing bolt.

[0016] Due to the adoption of the above technical solution, the technical advances achieved by the utility model include:

[0017] The utility model can connect the guard plate and the lifting ear together through the connection mechanism; at the same time, the spring rod in the connection mechanism can make the guard plate connected with the lifting ear move in the horizontal direction, so that the guard plate can be conveniently moved into the groove, and the guard plate moved into the groove can close the groove, so as to protect the end of the pin shaft located in the groove.

[0018] In the utility model, the slide plate and the connecting plate are detachably connected by the first bolt, so that when the guard plate is damaged, the guard plate can be easily replaced.

[0019] The utility model can fix the guard plate located in the groove by means of the fixing mechanism, thereby preventing the guard plate from popping out of the groove and causing damage during use of the utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1It is a structural schematic diagram of the background technology of a gantry hook pin shaft protection device of the utility model;

[0021] Figure 2 It is a structural schematic diagram of a gantry hook pin shaft protection device of the utility model;

[0022] Figure 3 The utility model is a schematic diagram of the explosion structure of a lifting ear of a gantry hook pin shaft protection device.

[0023] In the accompanying drawings: 1. bridge frame; 2. hook body; 3. lifting ear; 31. groove; 4. connecting mechanism; 41. spring rod; 42. connecting plate; 421. first threaded hole; 43. first bolt; 5. guard plate; 51. first through hole; 6. fixing mechanism; 61. fixing block; 62. fixing bolt; 63. second threaded hole; 7. pin shaft. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in combination with specific implementation methods and with reference to the accompanying drawings. In the following description, the description of the known structure and technology is omitted to avoid unnecessary confusion of the concept of the utility model.

[0025] Embodiment 1

[0026] First reference Figure 2 ,according to Figure 2 It can be seen that the utility model includes a bridge frame 1, and two hook bodies 2 are hinged at the bottom of the bridge frame 1; wherein, a pin shaft 7 is horizontally penetrated at the top of each hook body 2, and the hook body 2 is located at the center of the pin shaft 7, and both ends of the pin shaft 7 are hinged with a lifting ear 3, and the top of each lifting ear 3 is fixedly connected to the bridge frame 1; continue to refer to Figure 2 The two lifting ears 3 on both sides of each hook body 2 are in the same group, and the far-away sides of the lifting ears 3 in the same group are provided with grooves 31, and the adjacent lifting ears 3 in the two groups of lifting ears 3 are connected with guard plates 5 for closing their own grooves 31.

[0027] When the guard plate 5 is connected to the lifting lug 3, it can refer to Figure 3 ,according to Figure 3 It can be seen that a connecting mechanism 4 is provided in the groove 31 of the lifting ear 3, and the guard plate 5 is connected to the lifting ear 3 through the connecting mechanism 4. The above-mentioned connecting mechanism 4 can be further referred to in the specific setting. Figure 3 ,according to Figure 3 It can be seen that the connecting mechanism 4 includes a plurality of spring rods 41 horizontally arranged in the groove 31, one end of each spring rod 41 is fixedly connected to the inner wall of the groove 31, and the other ends of all the spring rods 41 are fixedly connected to the same vertical connecting plate 42, and the guard plate 5 is detachably connected to the connecting plate 42.

[0028] The utility model can continue to refer to the specific connection between the middle guard plate 5 and the connecting plate 42 Figure 3 ,according to Figure 3 It can be seen that the guard plate 5 is detachably connected to the connecting plate 42 through the first bolt 43. In order to facilitate the setting of the first bolt 43, a first through hole 51 is opened at the position of the guard plate 5 corresponding to the first bolt 43, and a first threaded hole 421 connected to the first through hole 51 is opened at the position of the connecting plate 42 corresponding to the first bolt 43.

[0029] When the guard plate 5 is connected to the connecting mechanism 4 and moved into the groove 31, the guard plate 5 can be fixed by the fixing mechanism 6 to prevent the guard plate 5 from popping out of the groove 31 during the use of the utility model. The fixing mechanism 6 can be further referred to in the specific setting. Figure 3 ,according to Figure 3 It can be seen that the fixing mechanism 6 includes a fixing block 61 which is detachably connected to the inner wall of the groove 31 through a fixing bolt 62. In order to facilitate the setting of the fixing bolt 62, a first through hole 51 is opened at the position of the fixing bolt 62 in the fixing block 61, and a second threaded hole 63 which is connected to the groove 31 and the second through hole is opened at the position of the fixing bolt 62 in the ear 3.

[0030] The working principle of the protective device for the gantry hook pin shaft 7 of the present embodiment is as follows: before the gantry hook of the present invention is used, the guard plate 5 and the connecting plate 42 are first fixedly connected together by the first bolt 43, and then the guard plate 5 is pushed into the groove 31 of the corresponding lifting ear 3, and then the fixing block 61 and the lifting ear 3 are fixedly connected together by the fixing bolt 62, so that the guard plate 5 is blocked in the lifting ear 3 by the fixing block 61, and at this time, the guard plate 5 closes the groove 31 of the lifting ear 3, so that the pin shaft 7 located in the groove 31 can be protected by the set guard plate 5, so as to prevent the pin shaft 7 from being frequently damaged during the use of the present invention.

[0031] Embodiment 2

[0032] Embodiment 2 is based on embodiment 1, and guard plates 5 are arranged in the grooves 31 of two lifting ears 3 that are far away from each other in the two groups of lifting ears 3 in the same way, so as to protect the pin shaft 7.

[0033] In the above embodiment, the utility model provides a gantry hook pin shaft protection device, which can connect the guard plate and the lifting ear together through the provided connecting mechanism; at the same time, through the spring rod in the connecting mechanism, the guard plate connected to the lifting ear can be moved in the horizontal direction, so that the guard plate can be conveniently moved into the groove, and the guard plate moved into the groove can close the groove, thereby protecting the end of the pin shaft located in the groove.

[0034] The above-described embodiments are merely descriptions of preferred implementations of the present invention, and are not intended to limit the concept and scope of the present invention. Without departing from the design concept of the present invention, various modifications and improvements made by ordinary personnel in the field to the technical solution of the present invention should fall within the protection scope of the present invention, and the technical contents of the present invention for protection have been fully recorded in the claims.

Claims

1. A gantry hook pin protection device, comprising a bridge frame (1) and a hook body (2) connected to the bridge frame (1) via a lifting lug (3), wherein: The top end of the hook body (2) is hinged to the lifting ear (3) via a pin (7), and is characterized in that: lifting ears (3) are provided on both sides of each hook body (2), and grooves (31) are provided on the sides away from each other of the two lifting ears (3), and each lifting ear (3) is connected to a guard plate (5) for closing its own groove (31) via a connecting mechanism (4), and each lifting ear (3) is provided with a fixing mechanism (6) for fixing the guard plate (5) and the corresponding lifting ear (3) together.

2. A gantry hook pin protection device according to claim 1, characterized in that: The pin shaft (7) passes through the top end of the hook body (2), and both ends of the pin shaft (7) extend into the grooves (31) of the corresponding lifting ears (3) respectively; wherein the hook body (2) is located at the center of the pin shaft (7).

3. A gantry hook pin shaft protection device according to claim 1, characterized in that: The connecting mechanism (4) comprises a spring rod (41) fixedly connected to the inner wall of the groove (31), and a vertical connecting plate (42) is fixedly connected to the side of the spring rod (41) away from the inner wall of the groove (31).

4. A gantry hook pin shaft protection device according to claim 3, characterized in that: The spring rod (41) is horizontally arranged in the groove (31), and a plurality of spring rods (41) are arranged in the groove (31).

5. A gantry hook pin protection device according to claim 4, characterized in that: The guard plate (5) is connected to the connecting plate (42) via a first bolt (43).

6. A gantry hook pin protection device according to claim 5, characterized in that: A first through hole (51) is provided on the guard plate (5) at a position corresponding to the first bolt (43), and a first threaded hole (421) connected to the first through hole (51) is provided on the connecting plate (42) at a position corresponding to the first bolt (43).

7. A gantry hook pin protection device according to any one of claims 1 to 6, characterized in that: The fixing mechanism (6) comprises a fixing block (61) detachably connected to the inner side wall of the groove (31).

8. A gantry hook pin protection device according to claim 7, characterized in that: The fixing block (61) is detachably connected to the lifting ear (3) via a fixing bolt (62).

9. A gantry hook pin protection device according to claim 8, characterized in that: The fixing block (61) is provided with a second through hole at a position corresponding to the fixing bolt (62), and the lifting ear (3) is provided with a second threaded hole (63) at a position corresponding to the fixing bolt (62), which is connected to the groove (31) and the second through hole and matches the corresponding fixing bolt (62).

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