Lifting appliance for replacing compression roller

Abstract

The utility model relates to the technical field of compression roller assembly and disassembly, and discloses a lifting appliance for replacing a compression roller. The lifting appliance for replacing the compression roller comprises a fixed shaft, a lifting ring is fixedly installed above the fixed shaft, a connecting block is installed below the fixed shaft in a penetrating and inserting mode, a connecting piston is fixedly installed below the connecting block, an adapter block is fixedly installed at the lower end of the connecting piston, a movable shaft is fixedly installed in the center of the adapter block, and the movable shaft is fixedly connected with the movable shaft. When the connecting piston contracts, the included angle between the inner connecting rod and the horizontal plane and the included angle between the outer connecting rod and the horizontal plane are reduced along with contraction of the connecting piston, so that the rear clamp and the front clamp rotate to the two sides of the movable shaft with the axis of the movable shaft as the reference, and the compression roller is conveniently detached; when the connecting piston extends, the included angle between the inner connecting rod and the horizontal plane and the included angle between the outer connecting rod and the horizontal plane are increased along with extension of the connecting piston, so that the rear clamp and the front clamp rotate to the position below the movable shaft with the axis of the movable shaft as the reference, and the compression roller is fixed to the rear clamp and the front clamp.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure roller loading and unloading, in particular to a lifting device for replacing pressure rollers. Background Art

[0002] The roller hoist is used to hoist a single roller onto a grinder and to transport the roller in reverse in a steel mill workshop. The clamp uses a gravity opening and closing mechanism to control the opening and closing of the hoist. The clamp holds the roller during operation. When the clamp hoists the roller, the support mechanisms at both ends support the roller on the bearing seat. The clamp can hoist 2-3 types of rollers. When hoisting rollers with different diameters, the support height is adjusted by plug-in pins.

[0003] The existing Chinese utility model patent with reference announcement number CN211945886U discloses a roller hoist for a rolling mill, including a fixed seat, a support foot is arranged at the bottom of the fixed seat, a roller fixing groove is opened on the fixed seat, the longitudinal section of the roller fixing groove is semicircular, a flexible cushion layer is detachably connected to the inner surface of the roller fixing groove, a roller anti-slip mechanism is arranged on one end face of the roller fixing groove, and ear shafts are connected to the two side faces of the roller fixing groove; the roller hoist in the utility model can effectively protect the roller and the fixed seat because a flexible cushion layer is arranged in the roller fixing groove, and can prevent the roller from falling off to a certain extent. The structural setting of the roller anti-slip mechanism further improves the safety of hoisting and transfer of the roller; during hoisting, the wire rope is tied to the ear shaft, and the installation and disassembly efficiency of the rope is high.

[0004] Existing roller hangers are generally of an "X"-shaped connecting rod structure. When the roller is lifted, the roller is fixed under the hanger under the action of its gravity. When the hanger is suspended in the air, the lower end of the hanger is in contact with the roller under the action of its own gravity, which makes it inconvenient for the hanger to clamp the roller. At the same time, the hanger of this structure has only two connecting rods to bear the weight of the roller, and the overall strength is poor. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] In view of the deficiencies in the prior art, the utility model provides a hanger for replacing a pressure roller, which has the advantages of being easy to load and unload the pressure roller and having high overall strength, thereby solving the above-mentioned technical problems.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a lifting device for replacing a pressure roller, comprising: a fixed shaft, a lifting ring is fixedly installed on the top of the fixed shaft, a connecting block is inserted and installed below the fixed shaft, a connecting piston is fixedly installed below the connecting block, a transfer block is fixedly installed on the lower end of the connecting piston, a movable shaft is fixedly installed at the center of the transfer block, an inner connecting rod is inserted and installed on the left side of the movable shaft, a short shaft is fixedly installed on the right side of the inner connecting rod, an outer connecting rod is inserted and installed on the left end of the movable shaft, a long shaft is fixedly installed on the right side of the outer connecting rod, connecting rods are inserted and installed on the tops of the short shaft and the long shaft, a rear clamp is inserted and installed below the long shaft, a front clamp is inserted and installed below the short shaft, and rubber pads are fixedly installed on the inner walls of the rear clamp and the front clamp; the lifting ring can facilitate the connection of the fixed shaft with the lifting equipment.

[0009] As an optimal technical solution of the utility model, the lifting ring is installed symmetrically at the left and right ends of the fixed shaft and the center of the fixed shaft with the center of the fixed shaft as the reference, and the connecting block is installed symmetrically at the left and right sides of the fixed shaft with the center of the fixed shaft as the reference; the connecting block can limit the position of the upper end of the connecting piston.

[0010] As the preferred technical solution of the utility model, the connecting block and the fixed shaft form a rotational connection, the adapter block and the movable shaft form a rotational connection, the movable shaft is connected to the piston through the adapter block, and the connecting block and the fixed shaft form a movable connection; the

[0011] As the preferred technical solution of the utility model, the inner connecting rod is installed on the left and right sides of the movable shaft symmetrically with the center of the movable shaft as the reference, and the outer connecting rod is installed on the left and right ends of the movable shaft symmetrically with the center of the movable shaft as the reference, and the inner connecting rod, the outer connecting rod and the movable shaft form a rotational connection; the inner connecting rod and the outer connecting rod can drive the front clamp and the rear clamp to rotate, and share the force exerted on the front clamp and the rear clamp.

[0012] As the preferred technical solution of the utility model, the short shaft is symmetrically installed at the front and rear ends of the inner connecting rod with the center of the inner connecting rod as the reference, and the long shaft is symmetrically installed at the front and rear ends of the inner connecting rod with the center of the outer connecting rod as the reference; the short shaft and the long shaft can facilitate the transmission of the force exerted on the front clamp and the rear clamp to the inner connecting rod and the outer connecting rod.

[0013] As the preferred technical solution of the utility model, the connecting rod is installed below the fixed shaft in a front-to-back mirror-symmetrical manner with the center of the fixed shaft as the reference, and a rotational connection is formed between the connecting rod and the fixed shaft, and a rotational connection is formed between the connecting rod and the short shaft and the long shaft; the connecting rod can form a movable connection between the upper ends of the inner connecting rod and the outer connecting rod and the fixed shaft.

[0014] As the preferred technical solution of the utility model, the top end of the rear clamp is embedded with the front clamp, and the rear clamp, the front clamp and the movable shaft are rotationally connected, and the rubber pad wraps the bottom ends of the front clamp and the rear clamp; the rubber pad can prevent the front clamp and the rear clamp from causing damage to the surface of the pressure roller.

[0015] Compared with the prior art, the utility model provides a hanger for replacing a pressure roller, which has the following beneficial effects:

[0016] The cam is fixedly mounted on the lower end of the connecting block, and the lower end of the connecting piston is fixedly connected to the upper end of the adapter block, and the adapter block is inserted and installed above the movable shaft, and the distance between the fixed shaft and the movable shaft is controlled by the connecting piston. When the connecting piston contracts, the angle between the inner connecting rod, the outer connecting rod and the horizontal plane decreases with the contraction of the connecting piston, so that the rear clamp and the front clamp are rotated to the two sides of the movable shaft with the axis center of the movable shaft as the reference, so as to facilitate the removal of the pressure roller. When the connecting piston is extended, the angle between the inner connecting rod, the outer connecting rod and the horizontal plane increases with the extension of the connecting piston, so that the rear clamp and the front clamp are rotated to the lower side of the movable shaft with the axis center of the movable shaft as the reference, so as to facilitate the fixing of the pressure roller to the rear clamp and the front clamp. This method can limit the relative position between the rear clamp and the front clamp, and avoid the rear clamp and the front clamp being in a clamped state under the action of their own gravity, so as to facilitate the loading and unloading of the pressure roller.

[0017] 2. The utility model arranges the inner connecting rod and the outer connecting rod. The inner connecting rod is symmetrically installed on the left and right sides of the movable shaft with the center of the movable shaft as a reference, and the outer connecting rod is symmetrically installed on the left and right ends of the movable shaft with the center of the movable shaft as a reference. A rotational connection is formed between the inner connecting rod, the outer connecting rod and the movable shaft. The short shaft is symmetrically installed at the front and rear ends of the inner connecting rod with the center of the inner connecting rod as a reference, and the long shaft is symmetrically installed at the front and rear ends of the inner connecting rod with the center of the outer connecting rod as a reference. A rear clamp is inserted and installed below the long shaft, and a front clamp is inserted and installed below the short shaft. At the same time, the top end of the rear clamp is engaged with the front clamp, and the rear clamp, the front clamp and the movable shaft are all rotationally connected. In this way, when the pressure roller is lifted, the gravity of the pressure roller borne by the rear clamp and the front clamp will be transmitted to the inner connecting rod and the outer connecting rod through the short shaft and the long shaft to increase the overall strength of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the connection structure between the fixed shaft and the movable shaft of the utility model;

[0020] Figure 3This is a schematic diagram of the connection structure between the inner connecting rod and the fixed shaft of the utility model;

[0021] Figure 4 This is a schematic diagram of the connection structure between the front clamp and the movable shaft of the utility model;

[0022] Among them: 1. Fixed shaft; 11. Lifting ring; 12. Connecting block; 13. Connecting piston; 14. Adapter block; 15. Movable shaft; 16. Inner connecting rod; 17. Short shaft; 18. Outer connecting rod; 19. Long shaft; 110. Connecting rod; 111. Rear clamp; 112. Front clamp; 113. Rubber pad. DETAILED DESCRIPTION

[0023] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0024] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0025] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] See also Figure 1 - Figure 4In the present embodiment, a lifting device for replacing a pressure roller comprises: a fixed shaft 1, a lifting ring 11 is fixedly installed on the upper part of the fixed shaft 1, a connecting block 12 is inserted and installed on the lower part of the fixed shaft 1, a connecting piston 13 is fixedly installed on the lower part of the connecting block 12, a transfer block 14 is fixedly installed on the lower end of the connecting piston 13, a movable shaft 15 is fixedly installed on the center of the transfer block 14, an inner connecting rod 16 is inserted and installed on the left side of the movable shaft 15, a short shaft 17 is fixedly installed on the right side of the inner connecting rod 16, an outer connecting rod 18 is inserted and installed on the left end of the movable shaft 15, a long shaft 19 is fixedly installed on the right side of the outer connecting rod 18, connecting rods 110 are inserted and installed on the upper parts of the short shaft 17 and the long shaft 19, a rear clamp 111 is inserted and installed on the lower part of the long shaft 19, a front clamp 112 is inserted and installed on the lower part of the short shaft 17, and rubber pads 113 are fixedly installed on the inner walls of the rear clamp 111 and the front clamp 112.

[0027] The lifting ring 11 is installed symmetrically at the left and right ends of the fixed shaft 1 and the center of the fixed shaft 1 with the center of the fixed shaft 1 as the reference, and the connecting block 12 is installed symmetrically at the left and right sides of the fixed shaft 1 with the center of the fixed shaft 1 as the reference.

[0028] The connecting block 12 is rotatably connected to the fixed shaft 1 , the adapter block 14 is rotatably connected to the movable shaft 15 , the movable shaft 15 is connected to the piston 13 through the adapter block 14 , and the connecting block 12 is movably connected to the fixed shaft 1 .

[0029] The inner connecting rod 16 is installed symmetrically on the left and right sides of the movable shaft 15 with the center of the movable shaft 15 as the reference, and the outer connecting rod 18 is installed symmetrically on the left and right ends of the movable shaft 15 with the center of the movable shaft 15 as the reference, forming a rotational connection between the inner connecting rod 16, the outer connecting rod 18 and the movable shaft 15.

[0030] The short shaft 17 is symmetrically mounted at the front and rear ends of the inner link 16 with the center of the inner link 16 as a reference, and the long shaft 19 is symmetrically mounted at the front and rear ends of the inner link 16 with the center of the outer link 18 as a reference.

[0031] The connecting rod 110 is installed below the fixed shaft 1 in a front-to-back mirror-symmetrical manner with the center of the fixed shaft 1 as a reference, and a rotation connection is formed between the connecting rod 110 and the fixed shaft 1, and a rotation connection is formed between the connecting rod 110 and the short shaft 17 and the long shaft 19.

[0032] The top end of the rear clamp 111 is engaged with the front clamp 112 , and the rear clamp 111 , the front clamp 112 and the movable shaft 15 are rotatably connected, and the rubber pad 113 wraps the bottom ends of the front clamp 111 and the rear clamp 112 .

[0033] Specifically, the fixed shaft 1 can limit the position of the upper end of the connecting rod 110, the lifting ring 11 can facilitate the connection of the fixed shaft 1 with the lifting equipment, the connecting block 12 can limit the position of the upper end of the connecting piston 13, the connecting piston 13 can adjust the distance between the movable shafts 15, the adapter block 14 can facilitate the connection between the connecting piston 13 and the movable shaft 15, the movable shaft 15 can limit the center position of the short shaft 17 and the long shaft 19, the inner connecting rod 16 and the outer connecting rod 18 can drive the front clamp 112 and the rear clamp 111 Rotate and share the force received by the front clamp 112 and the rear clamp 111. The short shaft 17 and the long shaft 19 can facilitate the transmission of the force received by the front clamp 112 and the rear clamp 111 to the inner connecting rod 16 and the outer connecting rod 18. The connecting rod 110 can form a movable connection between the upper ends of the inner connecting rod 16 and the outer connecting rod 18 and the fixed shaft 1. The front clamp 112 and the rear clamp 111 can facilitate the lifting of the pressure roller. The rubber pad 113 can prevent the front clamp 112 and the rear clamp 111 from causing damage to the surface of the pressure roller.

[0034] When in use, the connecting block 12 is symmetrically installed on the left and right sides of the fixed shaft 1 with the center of the fixed shaft 1 as the reference, the connecting piston 13 is fixedly installed on the lower end of the connecting block 12, and the lower end of the connecting piston 13 is fixedly connected to the upper end of the adapter block 14, and the adapter block 14 is inserted and installed above the movable shaft 15. The distance between the fixed shaft 1 and the movable shaft 15 is controlled by the connecting piston 13. When the connecting piston 13 contracts, the angles between the inner connecting rod 16 and the outer connecting rod 18 and the horizontal plane decrease with the contraction of the connecting piston 13, so that the rear clamp The front clamp 111 and the front clamp 112 rotate to both sides of the movable shaft 15 with the axis of the movable shaft 15 as the reference, so as to facilitate the removal of the pressure roller. When the connecting piston 13 is extended, the angle between the inner connecting rod 16 and the outer connecting rod 18 and the horizontal plane increases with the extension of the connecting piston 13, so that the rear clamp 111 and the front clamp 112 rotate to the lower side of the movable shaft 15 with the axis of the movable shaft 15 as the reference, so as to facilitate the fixing of the pressure roller and the rear clamp 111 and the front clamp 112. This method can limit the relative position between the rear clamp 111 and the front clamp 112, avoiding The rear clamp 111 and the front clamp 112 are in a clamped state under the action of their own gravity, so as to facilitate the loading and unloading of the pressure roller. The inner connecting rod 16 is symmetrically installed on the left and right sides of the movable shaft 15 with the center of the movable shaft 15 as the reference, and the outer connecting rod 18 is symmetrically installed on the left and right ends of the movable shaft 15 with the center of the movable shaft 15 as the reference. The inner connecting rod 16, the outer connecting rod 18 and the movable shaft 15 are rotatably connected. The short shaft 17 is symmetrically installed on the front and rear ends of the inner connecting rod 16 with the center of the inner connecting rod 16 as the reference, and the long shaft 19 is symmetrically installed on the center of the outer connecting rod 18. The rear clamp 111 is installed symmetrically at the front and rear ends of the inner connecting rod 16 based on the center of the main shaft. The rear clamp 111 is installed under the long axis 19, and the front clamp 112 is installed under the short axis 17. At the same time, the top of the rear clamp 111 is engaged with the front clamp 112, and the rear clamp 111, the front clamp 112 and the movable shaft 15 are all rotatably connected. In this way, when the pressure roller is lifted, the gravity of the pressure roller borne by the rear clamp 111 and the front clamp 112 will be transmitted to the inner connecting rod 16 and the outer connecting rod 18 through the short axis 17 and the long axis 19 to increase the overall strength of the device.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A lifting device for replacing a pressure roller, characterized in that: include: A fixed shaft (1), a lifting ring (11) is fixedly installed on the upper part of the fixed shaft (1), a connecting block (12) is inserted and installed on the lower part of the fixed shaft (1), a connecting piston (13) is fixedly installed on the lower part of the connecting block (12), a transfer block (14) is fixedly installed on the lower end of the connecting piston (13), a movable shaft (15) is fixedly installed on the center of the transfer block (14), an inner connecting rod (16) is inserted and installed on the left side of the movable shaft (15), and a short connecting rod (16) is fixedly installed on the right side of the inner connecting rod (16). The movable shaft (17) is provided with an outer connecting rod (18) inserted at the left end of the movable shaft (15), a long shaft (19) is fixedly installed on the right side of the outer connecting rod (18), connecting rods (110) are inserted above the short shaft (17) and the long shaft (19), a rear clamp (111) is inserted below the long shaft (19), a front clamp (112) is inserted below the short shaft (17), and rubber pads (113) are fixedly installed on the inner walls of the rear clamp (111) and the front clamp (112).

2. The pressure roller replacement hanger according to claim 1, characterized in that: The lifting ring (11) is symmetrically installed on the left and right ends of the fixed shaft (1) and the center of the fixed shaft (1) with the center of the fixed shaft (1) as the reference, and the connecting block (12) is symmetrically installed on the left and right sides of the fixed shaft (1) with the center of the fixed shaft (1) as the reference.

3. The pressure roller replacement hanger according to claim 1, characterized in that: The connection block (12) and the fixed shaft (1) are in rotational connection, the adapter block (14) and the movable shaft (15) are in rotational connection, and the movable shaft (15) is connected to the piston (13) through the adapter block (14), and the connection block (12) and the fixed shaft (1) are in active connection.

4. The pressure roller replacement hanger according to claim 1, characterized in that: The inner connecting rod (16) is symmetrically mounted on the left and right sides of the movable shaft (15) with the center of the movable shaft (15) as a reference, and the outer connecting rod (18) is symmetrically mounted on the left and right ends of the movable shaft (15) with the center of the movable shaft (15) as a reference, and the inner connecting rod (16), the outer connecting rod (18) and the movable shaft (15) are rotatably connected.

5. The pressure roller replacement hanger according to claim 1, characterized in that: The short shaft (17) is symmetrically mounted at the front and rear ends of the inner connecting rod (16) with the center of the inner connecting rod (16) as a reference, and the long shaft (19) is symmetrically mounted at the front and rear ends of the inner connecting rod (16) with the center of the outer connecting rod (18) as a reference.

6. The pressure roller replacement hanger according to claim 1, characterized in that: The connecting rod (110) is installed below the fixed shaft (1) in a front-to-back mirror-symmetrical manner with the center of the fixed shaft (1) as a reference, and a rotational connection is formed between the connecting rod (110) and the fixed shaft (1), and a rotational connection is formed between the connecting rod (110) and the short shaft (17) and the long shaft (19).

7. The pressure roller replacement hanger according to claim 1, characterized in that: The top end of the rear clamp (111) is engaged with the front clamp (112), and the rear clamp (111), the front clamp (112) and the movable shaft (15) are rotatably connected, and the rubber pad (113) wraps the bottom ends of the front clamp (111) and the rear clamp (112).

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