Sleeve grabbing device suitable for multiple pipe diameters

Abstract

The sleeve grabbing device comprises a supporting frame and a rotating shaft, one end of the supporting frame is connected with the rotating shaft, the upper position and the lower position of the end, away from the rotating shaft, of the supporting frame are each movably connected with a pair of arc-shaped embracing arms, and the ends, away from the supporting frame, of the embracing arms are movably connected with clamping arms. A driving rotating mechanism is arranged on the holding arm relative to the clamping arm; the telescopic end of the air cylinder is connected with a transmission frame, the upper portion and the lower portion of the end, away from the air cylinder, of the transmission frame are movably connected with a pair of connecting rods respectively, the connecting rods are movably connected with the opposite embracing arms respectively, and the air cylinder drives the transmission frame to stretch out and draw back to achieve opening and closing movement of the embracing arms. The sleeve grabbing device adapts to grabbing of sleeves of different specifications by adjusting the rotating angle of the clamping arm, the grabbing mechanism does not need to be replaced, the working efficiency during sleeve grabbing is improved, and the working time is shortened.

Description

Technical Field

[0001] The utility model belongs to the technical field of metallurgical rolling, and in particular relates to a sleeve grabbing device suitable for multi-diameter pipes. Background Art

[0002] In the steel rolling field of the metallurgical industry, a dedicated upper sleeve mechanism is required to put sleeves on the reel of the coiler in the processing line, and the next coiling operation is performed after the sleeve is put on. The sleeve specifications required in each existing production line are usually unique, and the sleeves that can be grasped by the upper sleeve mechanism are also limited to a single specification. At present, users in the existing technology often require the provision of sleeves of various specifications. At this time, for the upper sleeve device, when it is necessary to grasp sleeves of different specifications, the grasping mechanism of the upper sleeve device needs to be replaced to meet the grasping of sleeves of different specifications; frequent replacement of the grasping mechanism will greatly prolong the grasping time of the sleeve and reduce work efficiency. Utility Model Content

[0003] The utility model aims to provide a sleeve grabbing device suitable for multi-diameter pipes, which can adapt to the grabbing of sleeves of different specifications by adjusting the rotation angle of the clamping arm, without replacing the grabbing mechanism, thereby improving the operating efficiency when grabbing the sleeve and reducing the operating time.

[0004] The technical solution adopted by the utility model is that the sleeve grabbing device suitable for multi-diameter pipes includes a support frame and a rotating shaft, one end of the support frame is connected to the rotating shaft, and the upper and lower positions of the support frame away from the rotating shaft are respectively movably connected with a pair of arc-shaped arms, the arms enclose a space for grabbing the sleeve, and the end of the arms away from the support frame is movably connected with a clamping arm, and the position of the arms relative to the clamping arm is provided with a driving rotation mechanism for adjusting the rotation of the clamping arm;

[0005] A cylinder is also connected to the rotating shaft, and the telescopic end of the cylinder is connected to a transmission frame. The transmission frame is located on the inner side of the space formed by the boom. The transmission frame is movably connected to a pair of connecting rods at the upper and lower parts of the transmission frame away from the cylinder end. The connecting rods are movably connected to the relative booms respectively. The transmission frame is driven to extend and retract by the cylinder to realize the opening and closing movement of the boom.

[0006] The utility model is also characterized in that:

[0007] The driving rotation mechanism includes a pair of adjusting bolts passing through the arm, the adjusting bolts are threadedly connected to the arm, one end of the adjusting bolt passes through the arm and abuts against the clamping arm, and the pair of adjusting bolts abut against the two ends of the clamping arm symmetrically.

[0008] A locking nut is arranged on the adjusting bolt.

[0009] An anti-slip layer is bonded to one end of the clamping arm away from the holding arm.

[0010] A pair of support sleeves are fixedly connected to the upper and lower positions of the support frame away from the rotating shaft end, and a support rod is movably connected inside the support sleeve. A support rod locking nut is movably connected to the end of the support sleeve. The extension distance of the support rod relative to the support sleeve is limited by rotating the support rod locking nut. An anti-slip layer is bonded to the end of the support rod away from the support sleeve.

[0011] A pumping rod is fixedly connected to the bottom of the transmission frame, and the pumping rod passes through the support frame and is connected to the output end of the cylinder;

[0012] A plurality of pairs of auxiliary rods are symmetrically connected to the bottom of the transmission frame on both sides of the pulling rod, and a through hole is opened in the support frame relative to the auxiliary rod. The auxiliary rod passes through the through hole and is movably connected to the support frame.

[0013] The length of the twitching rod is shorter than the length of the auxiliary rod.

[0014] The arms that are opposite to each other and on the same side are connected by a fixing rod.

[0015] The beneficial effects of the utility model are:

[0016] (1) The utility model is applicable to the sleeve grasping device of multiple diameters. The clamping arms and the holding arms on both sides are movably connected through the pin a, and a pair of adjusting bolts pass through one end of the holding arm to abut against the clamping arms. When the adjusting bolts are rotated, the clamping arms rotate, so that the clamping arms can adapt to sleeves of different specifications. An anti-skid layer is also bonded to the side where the clamping arms abut against the sleeve to prevent the sleeve from slipping during the grasping process.

[0017] (2) The utility model is suitable for the sleeve grasping device of multiple diameters and is also provided with a support structure between the clamping arms on both sides for supporting the two ends of the sleeve side walls. The extension length of the support rod is fixed by the support rod locking nut to ensure that the support rod is always in close contact with the sleeve side wall during the grasping movement time of the sleeve to prevent slippage during the movement of the sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the sleeve grabbing device applicable to multiple diameters of pipes of the utility model;

[0019] Figure 2 It is a side view of the sleeve grabbing device of the utility model applicable to multiple diameter pipes;

[0020] Figure 3 yes Figure 2 Schematic diagram of the structure from middle perspective E.

[0021] In the figure, 1. clamping arm, 2. pin a, 3. holding arm, 4. pin b, 5. connecting rod, 6. pulling rod, 7. support frame, 8. cylinder, 9. pin c, 10. pin d, 11. support rod locking nut, 12. support rod, 13. locking nut, 14. adjusting bolt, 15. rotating shaft, 16. transmission frame. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Example 1

[0024] like Figure 1 and Figure 2 As shown, the utility model is suitable for a sleeve grabbing device for multiple pipe diameters, including a support frame 7 and a rotating shaft 15, one end of the support frame 7 is connected to the rotating shaft, and the upper and lower positions of the support frame 7 away from one end of the rotating shaft 15 are respectively movably connected with a pair of arc-shaped arms 3, that is, the sleeve grabbing device of this embodiment is movably connected with two pairs of arms 3 through the pin shaft c9, and the inner arcs of each pair of arms 3 are opposite to each other, enclosing a space for grabbing the sleeve, and in order to ensure the synchronous operation of the upper and lower relative arms 3 on the same side, the upper and lower relative arms 3 on the same side are connected by a fixed rod. When the upper arm 3 on the same side rotates with the pin shaft c9 as the axis, the lower arm 3 is driven to move synchronously through the fixed rod.

[0025] The rotating shaft 15 is also connected to a cylinder 8 . In the present embodiment, the cylinder 8 and the support frame 7 are both fixedly connected to the rotating shaft 15 . When the rotating shaft 15 rotates, the cylinder 8 and the support frame 7 rotate synchronously with the rotating shaft 15 .

[0026] The telescopic end of the cylinder 8 is connected to the pulling rod 6, and the pulling rod 6 passes through the support frame 7 and is fixedly connected to the bottom of the transmission frame 16. The transmission frame 16 is located on the inner side of the space enclosed by the arm 3, and the upper and lower parts of the transmission frame 16 away from the end of the cylinder 8 are respectively connected to a pair of connecting rods 5 through the pin shaft d, and the connecting rods 5 are respectively movably connected to the opposite arm 3 through the pin shaft b4.

[0027] That is, the cylinder 8 drives the twitching rod 6 to perform telescopic movement relative to the support frame 7, and the driving frame transmission frame 16 of the twitching rod 6 performs displacement movement synchronously. Since the length of the connecting rod 5 is fixed, when the transmission frame 16 moves toward the support frame 7, the arms 3 on both sides are driven to move closer to the middle. When the transmission frame 16 moves away from the support frame 7, the arms 3 on both sides are driven to move toward both sides, thereby realizing the opening and closing movement of the arms 3 on both sides.

[0028] One end of the arm 3 away from the support frame 7 is movably connected to the clamping arm 1 , and one end of the clamping arm 1 away from the arm 3 is bonded with an anti-slip layer.

[0029] like Figure 3 As shown, the holding arm 3 is provided with a driving rotation mechanism for adjusting the rotation of the clamping arm 1 relative to the clamping arm 1 .

[0030] The driving rotation mechanism includes a pair of adjusting bolts 14 passing through the arm 3, the adjusting bolts 14 are threadedly connected to the arm 3, one end of the adjusting bolts 14 passes through the arm 3 and abuts against the clamping arm 1, and the pair of adjusting bolts 14 abut against the two ends of the clamping arm 1 symmetrically. At the same time, a locking nut 13 is also provided on the adjusting bolt 14 to limit the rotation of the adjusting bolt 14.

[0031] That is, by rotating the relative position of a pair of adjusting bolts 14 abutting against the clamping arm 1, the relative angle between the clamping arm 1 and the holding arm 3 can be adjusted. When the adjusting bolt 14 at one end moves inward and presses against the clamping arm 1, the adjusting bolt 14 at the other end needs to be rotated out away from the clamping arm 1 to give the clamping arm 1 rotation space. When the clamping arm 1 is rotated to a suitable position, the rotation of the adjusting bolt 14 is locked by rotating the locking nut 13 to prevent the clamping arm 1 from loosening and causing the sleeve to fall off during the sleeve grabbing process.

[0032] Example 2

[0033] On the basis of Example 1, the utility model is suitable for a sleeve grasping device for multiple diameters. A pair of support sleeves are fixedly connected to the upper and lower positions of the support frame 7 away from one end of the rotating shaft 15, and a support rod 12 is movably connected inside the support sleeve. A support rod locking nut 11 is movably connected to the port position of the support sleeve. The extension distance of the support rod 12 relative to the support sleeve is limited by rotating the support rod locking nut 11. An anti-slip layer is bonded to the end of the support rod 12 away from the support sleeve.

[0034] That is, after the clamping arm 1 completes grabbing of the sleeve, the position of the support rod 12 is adjusted so that one end of the support rod 12 abuts against the side wall of the sleeve, and then the support rod 12 is locked by the support rod locking nut 11 to ensure that the support rod 12 is always abutted against the sleeve during the entire grabbing and transportation process.

[0035] The support rod 12 and the support sleeve can be adjusted by manual extraction, or by hydraulic drive, motor drive and other existing methods to complete the adjustment of the relative position relationship between the support rod 12 and the support sleeve.

[0036] Example 3

[0037] On the basis of Example 1, the utility model is applicable to a sleeve grabbing device for multiple diameters, in which a plurality of pairs of auxiliary rods are symmetrically connected to the bottom of the transmission frame 16 relative to the two sides of the pumping rod 6, and a through hole is opened at the position of the support frame 7 relative to the auxiliary rod, and the auxiliary rod passes through the through hole and is movably connected to the support frame 7. The auxiliary rod can make the transmission frame 16 more stable when it is displaced.

[0038] Furthermore, the length of the twitching rod 6 is less than that of the auxiliary rod, so as to avoid the auxiliary rod being separated from the through hole on the support frame 7 when the transmission frame 16 moves away from the support frame 7, thereby failing to stabilize the movement of the transmission frame 16.

[0039] The utility model is suitable for the sleeve grabbing device of multiple diameters. When the sleeve is located inside the enclosure of the arm 3, the cylinder 8 drives the transmission frame 16 to move toward the support frame 7, so that the arms 3 located on both sides of the sleeve form a clamping state for the sleeve. At this time, the adjusting bolt 14 on the rear side of each clamping arm 1 is adjusted to make the clamping arm 1 swing relative to the arm 3, and the tightening angle of the clamping arm 1 is adjusted. Sleeves of different specifications can be clamped at different clamping angles until the clamping arm 1 and the side wall of the sleeve are tightly fitted, and the adjusting bolt 14 is locked by rotating the locking nut 13.

[0040] Then adjust the support rod 12 to be close to the side wall of the sleeve until one end of the support rod 12 is tightly against the side wall of the sleeve, and rotate the support rod locking nut 11 to complete the locking of the support rod 12, thereby completing the overall capture of the sleeve.

Claims

1. A sleeve grabbing device suitable for multi-diameter pipes, comprising a support frame (7) and a rotating shaft (15), wherein one end of the support frame (7) is connected to the rotating shaft, and is characterized in that: A pair of arc-shaped arms (3) are movably connected at the upper and lower positions of one end of the support frame (7) away from the rotating shaft (15), and the arms (3) enclose a space for grabbing the sleeve. The end of the arms (3) away from the support frame (7) is movably connected to a clamping arm (1), and a driving rotation mechanism for adjusting the rotation of the clamping arm (1) is provided at the position of the arms (3) relative to the clamping arm (1); The rotating shaft (15) is also connected to a cylinder (8), and the telescopic end of the cylinder (8) is connected to a transmission frame (16), and the transmission frame (16) is located inside the space enclosed by the arm (3). The transmission frame (16) is movably connected to a pair of connecting rods (5) at two locations above and below the end away from the cylinder (8), and the connecting rods (5) are movably connected to the opposite arm (3) respectively. The transmission frame (16) is driven to telescope through the cylinder (8), so as to realize the opening and closing movement of the arm (3).

2. The sleeve grabbing device suitable for multiple diameter pipes according to claim 1, characterized in that: The driving rotation mechanism comprises a pair of adjusting bolts (14) passing through the arm (3), the adjusting bolts (14) being threadedly connected to the arm (3), one end of the adjusting bolts (14) passing through the arm (3) abutting against the clamping arm (1), and the pair of adjusting bolts (14) abut against the two ends of the clamping arm (1) symmetrically with each other.

3. The sleeve grabbing device suitable for multiple diameter pipes according to claim 2, characterized in that: A locking nut (13) is arranged on the adjusting bolt (14).

4. The sleeve grabbing device suitable for multiple diameter pipes according to claim 3, characterized in that: An anti-slip layer is bonded to one end of the clamping arm (1) away from the holding arm (3).

5. The sleeve grabbing device suitable for multiple diameter pipes according to claim 2, characterized in that: A pair of support sleeves are fixedly connected to the upper and lower positions of one end of the support frame (7) away from the rotating shaft (15), and a support rod (12) is movably connected inside the support sleeve. A support rod locking nut (11) is movably connected to the end of the support sleeve. The extension distance of the support rod (12) relative to the support sleeve is limited by rotating the support rod locking nut (11). An anti-slip layer is bonded to the end of the support rod (12) away from the support sleeve.

6. The sleeve grabbing device suitable for multiple diameter pipes according to claim 1, characterized in that: A pumping rod (6) is fixedly connected to the bottom of the transmission frame (16), and the pumping rod (6) passes through the support frame (7) and is connected to the output end of the cylinder (8); A plurality of pairs of auxiliary rods are symmetrically connected to the bottom of the transmission frame (16) on both sides of the twitching rod (6), and a through hole is opened at the position of the support frame (7) relative to the auxiliary rod, and the auxiliary rod passes through the through hole and is movably connected to the support frame (7).

7. The sleeve grabbing device suitable for multiple diameter pipes according to claim 6, characterized in that: The length of the pumping rod (6) is smaller than the length of the auxiliary rod.

8. The sleeve grabbing device applicable to multiple diameter pipes according to any one of claims 1 to 5, characterized in that: The arms (3) that are opposite to each other and on the same side are connected via a fixing rod.

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