Pinch roll

Abstract

The utility model discloses a pinch roll, which relates to the technical field of conveying equipment and comprises a support frame, a double-end threaded pipe is arranged in the support frame, movable seats are sleeved at two ends of the double-end threaded pipe, a threaded sleeve is fixedly arranged in the middle of each movable seat, and the threaded sleeve is sleeved on the outer side of the double-end threaded pipe. The supporting frame is arranged, the hollow double-end threaded pipe is arranged in the supporting frame, the movable seat is arranged on the outer side of the double-end threaded pipe, the connecting plate is arranged on the outer side of the movable seat, and the contact plate of a hollow structure is arranged on the outer side of the connecting plate. The cooled compressed air can enter the supporting pipe on the inner side of the contact plate through the double-end threaded pipe and the annular cover on the outer side of the double-end threaded pipe, and the cooled compressed air is discharged to the surface of the hot-rolled steel plate through the air outlet holes in the surface of the contact plate, so that the effect of cooling the hot-rolled steel plate is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of conveying equipment, in particular to a pinch roll. Background Art

[0002] In the actual production of heavy plate and other hot rolling production lines, rolled steel plates need to be conveyed through roller tables. The previous process of the rolled steel plate is the heating furnace heating process. When the rolled steel plate or billet is conveyed on the roller table, it is conveyed in a hot state, with a high conveying temperature. The heat of the hot billet or steel plate will be transferred to the conveying roller table. If no cooling measures are taken, the heat transferred from the hot billet or steel plate to the conveying roller table is too large, which will cause the conveying roller table to thermally expand. The too high surface temperature of the conveying roller table will cause the hardness of the roller table to decrease and the wear to intensify, and it will also cause accidents such as the bearings at both ends of the conveying roller table being locked due to the too high temperature of the roller table.

[0003] A hot-rolled steel plate discharging conveying roller convenient for maintenance with the publication number of CN220728922U includes a mounting support plate. Vertical plates are fixedly installed on the left and right sides of the top of the mounting support plate. A roller body is arranged on the vertical plates. A sprocket is fixedly installed on the left side of the vertical plate. A bearing is fixedly installed on the outer part of the roller body. A limiting block is fixedly installed on the opposite sides of the vertical plates. A dismounting mechanism is fixedly installed at the bottom of the bearing. An air guide pipe is fixedly installed between the vertical plates. For this hot-rolled steel plate discharging conveying roller convenient for maintenance, by arranging an air guide pipe, an air outlet pipe, an air delivery pipe and an electromagnetic valve, the air delivery pipe is connected to a gas storage tank. Before the hot-rolled steel plate is discharged, the electromagnetic valve is opened first, and the gas output from the air outlet pipe is ignited. The flame heats the roller body, and the temperature of the roller body and the environment rises. When the hot-rolled steel plate is discharged, the temperature difference between the hot-rolled steel plate and the roller body is small, and the temperature loss speed of the hot-rolled steel plate slows down, and finally the rolling effect is better and the quality is better.

[0004] The above technical solution has the problem that the hot-rolled steel plate cannot be cooled in actual application.

[0005] Therefore, it is very necessary to invent a pinch roll to solve the above problems. Content of the Utility Model

[0006] The purpose of the utility model is to provide a pinch roll to solve the problems put forward in the above background art.

[0007] To achieve the above object, the present utility model provides the following technical solution: A pinch roll, comprising a support frame, wherein a double-headed threaded tube is arranged inside the support frame, movable seats are sleeved at both ends of the double-headed threaded tube, a threaded sleeve is fixedly arranged in the middle of the movable seat, and the threaded sleeve is sleeved outside the double-headed threaded tube. A plurality of connecting blocks are arranged around the outer side wall of the movable seat, movable arms are movably arranged on the outer side of the connecting blocks through pins. A plurality of arc-shaped connecting plates are arranged around the outer side of the double-headed threaded tube. Both ends of the inner side wall of the connecting plate are fixedly provided with extension blocks, and the extension blocks are movably connected to one end of the movable arm through pins. A hollow contact plate is arranged outside the connecting plate. A support tube is fixedly arranged on the inner side wall of the contact plate, and one end of the support tube penetrates through the middle of the connecting plate.

[0008] Preferably, a corrugated tube is fixedly arranged at the bottom end of the support tube, a ring-shaped cover is fixedly arranged at the bottom end of the corrugated tube, and the ring-shaped cover is movably arranged in the middle of the double-headed threaded tube through a bearing.

[0009] Preferably, a plurality of air guide grooves are formed around the middle of the inner side wall of the double-headed threaded tube, and the air guide grooves correspond to the ring-shaped cover.

[0010] Preferably, the contact plate is arranged in an arc shape, and a plurality of air outlet holes are formed through the outer side wall of the contact plate.

[0011] Preferably, a conduit penetrates through one end of the support frame through a bearing, one end of the conduit is fixedly connected to one end of the double-headed threaded tube, the other end of the conduit is movably arranged with a threaded seat through a bearing, and a knob is fixedly arranged in the middle of the conduit.

[0012] Preferably, mounting seats are fixedly arranged at both ends of the support frame.

[0013] The technical effects and advantages of the present utility model:

[0014] 1. By setting the support frame, a hollow double-headed threaded tube is arranged inside the support frame, a movable seat is arranged outside the double-headed threaded tube, a connecting plate is arranged outside the movable seat, and a hollow contact plate is arranged outside the connecting plate. When transporting the hot-rolled steel plate, the cooled compressed air can enter the support tube inside the contact plate through the double-headed threaded tube and the ring-shaped cover outside it, and the cooled compressed air is discharged to the surface of the hot-rolled steel plate through the air outlet holes on the surface of the contact plate, so as to achieve the effect of cooling and temperature reduction of the hot-rolled steel plate;

[0015] 2. The utility model adjusts the position of the movable seat by rotating the double-headed threaded pipe through arranging the movable seat on the outer side of the double-headed threaded pipe. The movable seat can drive the connecting plate to move through the movable arm, and the connecting plate drives the contact plate to move, so that a plurality of contact plates move outwards, thereby adjusting the diameter of the pinch rolls, facilitating the conveying of hot-rolled steel plates with different specifications, and also facilitating the discharge of compressed air after heat exchange with the hot-rolled steel plates. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of the utility model.

[0017] Figure 2 is a schematic cross-sectional view of the overall structure of the utility model.

[0018] Figure 3 of the utility model Figure 2 is an enlarged schematic view of the structure at A.

[0019] Figure 4 is a schematic diagram of the connecting plate structure of the utility model.

[0020] In the figure: 1, support frame; 2, double-headed threaded pipe; 3, movable seat; 4, threaded sleeve; 5, connecting block; 6, movable arm; 7, connecting plate; 8, extension block; 9, contact plate; 10, support pipe; 11, bellows; 12, annular cover; 121, air guide groove; 13, air outlet hole; 14, conduit; 15, threaded seat; 16, knob; 17, mounting seat. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0022] The present utility model provides a pair of pinch rolls as Figures 1-4 shown, including a support frame 1. A double-headed threaded pipe 2 is arranged inside the support frame 1. Movable seats 3 are sleeved at both ends of the double-headed threaded pipe 2. A threaded sleeve 4 is fixedly arranged in the middle of the movable seat 3, and the threaded sleeve 4 is sleeved on the outer side of the double-headed threaded pipe 2. The double-headed threaded pipe 2 cooperates with the threaded sleeve 4 to realize the adjustment of the positions of the two movable seats 3;

[0023] Specifically, a plurality of connecting blocks 5 are arranged around the outer side wall of the movable seat 3. The outer side of the connecting block 5 is movably provided with a movable arm 6 through a pin shaft. A plurality of arc-shaped connecting plates 7 are arranged around the outer side of the double-headed threaded pipe 2. Both ends of the inner side wall of the connecting plate 7 are fixedly provided with extension blocks 8, and the extension block 8 is movably connected to one end of the movable arm 6 through a pin shaft. The outer side of the connecting plate 7 is provided with a contact plate 9 with a hollow structure. A support pipe 10 is fixedly arranged on the inner side wall of the contact plate 9, and one end of the support pipe 10 penetrates through the middle of the connecting plate 7;

[0024] More specifically, a bellows 11 is fixedly arranged at the bottom end of the support pipe 10. The bottom end of the bellows 11 is fixedly provided with an annular cover 12. The annular cover 12 is movably arranged in the middle of the double-headed threaded pipe 2 through a bearing. A plurality of air guide grooves 121 are arranged around the middle of the inner side wall of the double-headed threaded pipe 2, and the air guide grooves 121 correspond to the annular cover 12. The annular cover 12 can rotate on the outer side of the double-headed threaded pipe 2 to ensure that there is no interference when the double-headed threaded pipe 2 rotates. The arrangement of the air guide grooves 121 ensures that the gas in the double-headed threaded pipe 2 can enter the annular cover 12;

[0025] And, the contact plate 9 is arranged in an arc shape, and a plurality of air outlet holes 13 are penetrated through the outer side wall of the contact plate 9. Compressed air reaches the surface of the hot-rolled steel plate through the air outlet holes 13 on the surface of the contact plate 9. The compressed air flows on the surface of the hot-rolled steel plate, so that the heat exchange efficiency between the hot-rolled steel plate and the air is improved;

[0026] Moreover, one end of the support frame 1 is penetrated through a conduit 14 through a bearing, and one end of the conduit 14 is fixedly connected to one end of the double-headed threaded pipe 2. The other end of the conduit 14 is movably provided with a threaded seat 15 through a bearing. The threaded seat 15 is used to connect the conduit 14 to the air supply pipeline. A knob 16 is fixedly arranged in the middle of the conduit 14. The arrangement of the knob 16 facilitates the user to rotate the conduit 14. Installation seats 17 are fixedly arranged at both ends of the support frame 1. The installation seats 17 are used to install the support frame 1 on the roller frame of the conveying roller.

[0027] Working principle of the utility model:

[0028] When the device is in use, the pinch rolls are installed on the roller frame through the installation seats 17 at both ends thereof. When conveying the hot-rolled steel plate, one end of the conduit 14 is connected to an air pump through the threaded seat 15. Compressed air enters the double-headed threaded pipe 2 through the conduit 14, and then enters the annular cover 12 through the air guide grooves 121. The compressed air in the annular cover 12 enters the inside of the contact plate 9 through the bellows 11 and the support pipe 10, and then reaches the surface of the hot-rolled steel plate through the air outlet holes 13 on the surface of the contact plate 9. The compressed air flows on the surface of the hot-rolled steel plate, so that the heat exchange efficiency between the hot-rolled steel plate and the air is improved, so as to achieve the effect of cooling the hot-rolled steel plate;

[0029] When conveying hot-rolled steel plates with different thicknesses, the height at which the hot-rolled steel plate is lifted during conveyance can be controlled by adjusting the positions of multiple contact plates 9. By rotating the knob 16, the conduit 14 rotates. The conduit 14 drives the double-headed threaded tube 2 to rotate. The double-headed threaded tube 2 cooperates with the threaded sleeve 4, causing the two movable seats 3 to move relative to each other. The movable seat 3 drives the connecting plate 7 to move through the movable arm 6, and the connecting plate 7 drives the contact plate 9 to move, causing the multiple contact plates 9 to open outward or contract inward, thereby enabling adjustment of the diameter of the pinch rolls and further enabling adjustment of the conveyance height of the hot-rolled steel plate.

[0030] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A pinch roll, comprising a support frame (1), characterized in that: Inside the support frame (1), there is a double-headed threaded pipe (2). Both ends of the double-headed threaded pipe (2) are sleeved with movable seats (3). In the middle of the movable seat (3), a threaded sleeve (4) is fixedly arranged, and the threaded sleeve (4) is sleeved outside the double-headed threaded pipe (2). A plurality of connecting blocks (5) are arranged around the outer side wall of the movable seat (3). One end of a movable arm (6) is movably arranged on the outer side of the connecting block (5) through a pin shaft. A plurality of arc-shaped connecting plates (7) are arranged around the outer side of the double-headed threaded pipe (2). At both ends of the inner side wall of the connecting plate (7), extension blocks (8) are fixedly arranged, and the extension blocks (8) are movably connected to one end of the movable arm (6) through a pin shaft. On the outer side of the connecting plate (7), there is a contact plate (9) with a hollow structure. A support pipe (10) is fixedly arranged on the inner side wall of the contact plate (9), and one end of the support pipe (10) penetrates through the middle of the connecting plate (7).

2. The pinch roll according to claim 1, wherein: At the bottom end of the support pipe (10), a corrugated pipe (11) is fixedly arranged. At the bottom end of the corrugated pipe (11), an annular cover (12) is fixedly arranged. The annular cover (12) is movably arranged in the middle of the double-headed threaded pipe (2) through a bearing.

3. A pinch roll according to claim 2, characterized in that: A plurality of air guide grooves (121) are circumferentially formed in the middle of the inner side wall of the double-headed threaded pipe (2), and the air guide grooves (121) correspond to the annular cover (12).

4. A pinch roll according to claim 3, characterized in that: The contact plate (9) is arranged in an arc shape, and a plurality of air outlet holes (13) are formed through the outer side wall of the contact plate (9).

5. A pinch roll according to claim 4, characterized in that: One end of the support frame (1) penetrates through a conduit (14) through a bearing, and one end of the conduit (14) is fixedly connected to one end of the double-headed threaded pipe (2). The other end of the conduit (14) is movably arranged with a threaded seat (15) through a bearing. A knob (16) is fixedly arranged in the middle of the conduit (14).

6. The pinch roll according to claim 5, wherein: Mounting seats (17) are fixedly arranged at both ends of the support frame (1).

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