CN209647226U - A kind of cold pilger mill rack structure - Google Patents

Abstract

The utility model discloses a rack structure of a cold rolling pipe mill, comprising a roll seat, a frame, a driving gear, a driven gear, an upper roll, a lower roll, a rack, a rack seat, an adjustment seat, a screw rod, and a stand plate , the first bottom plate, the second bottom plate, the third bottom plate, the rotating shaft, lugs, fastening bolts, hydraulic cylinders, side plates, connecting plates and output rods, the bottom of the roll seat is installed on the frame by sliding, and the The through holes in the upper and lower parts of the vertical frames on both sides of the roll seat are used to slew the two ends of the upper roll and the lower roll respectively through rolling bearings. Adjustment function, and the adjustments in the two directions do not interfere with each other. The adjustment method is convenient and quick to operate, and has strong universal applicability. At the same time, the structure of the rotating shaft, lugs and hydraulic cylinders is used to cooperate with each other, so as to realize the flipping function and facilitate the adjustment of the roll seat. The rollers are replaced.

Description

A kind of rack structure of cold rolling pipe mill

technical field

The utility model relates to the technical field of cold-rolled pipe mill accessories, in particular to a cold-rolled pipe mill rack structure.

Background technique

The rack is an important part of the stand box of the cold rolling mill. The driving gear on the roll shaft cooperates with the rack so that when the roll base moves back and forth, the roll rotates back and forth to roll the tube billet. Due to the different specifications of rolling For steel pipes, the size of the driving gear is different, and the outer diameters of the rolls of some specifications of the rolling mills are also different, so the height and horizontal position of the rack are changed. At present, the common cold rolling mills cannot change the height of the rack well. The parallelism of the racks is ensured in the position, and the rack structures need to be disassembled one by one when replacing the rolls, which is cumbersome. Therefore, it is very necessary to design a rack structure for cold rolling mills.

Contents of the invention

The purpose of this utility model is to provide a rack structure of a cold rolling mill to solve the problems raised in the above-mentioned background technology.

In order to solve the above technical problems, the utility model provides the following technical solutions: a rack structure of a cold rolling mill, including a roll stand, a frame, a driving gear, a driven gear, an upper roll, a lower roll, a rack, and a rack base , adjusting seat, screw rod, stand plate, first bottom plate, second bottom plate, third bottom plate, rotating shaft, lug, fastening bolt, hydraulic cylinder, side plate, connecting plate and output rod, the bottom of the roll seat passes through Slidingly installed on the machine frame, the through holes of the upper and lower parts of the vertical frame on both sides of the roll stand are used to respectively support the two ends of the upper roll and the lower roll through rolling bearings, and one end of the upper roll is connected with the circular surface of the driving gear The groove on the inner wall of the through hole in the center is fixedly connected, the other end of the upper roll is fixedly connected to the groove on the inner wall of the through hole in the center of the circular surface of the driven gear through a key, and the bottom of the third bottom plate is fixed to the opening in the middle of the frame by welding. On the upper surface on both sides of the side, the short sides of the third bottom plate on the side of the driving gear are welded and fixed with side plates, and the upper surface of the third bottom plate is fixedly connected to both sides of the long side of the second bottom plate by fastening bolts. The upper surface of the second bottom plate is fixedly connected to the two sides of the long side of the first bottom plate by fixing bolts, and a lug is installed on the upper surface of the second bottom plate close to the side of the driven gear, and the long side of the upper surface of the first bottom plate The stand plate is welded and fixed on both sides, the central through hole on the outside of the stand plate installed on the side away from the lug of the first bottom plate is fixedly connected with the outer ring on the side of the screw without thread through the rolling bearing, and the outer ring at the other end of the screw The bottom of the adjustment seat is installed on the upper surface of the first bottom plate by sliding, and the inclined surface side of the rack seat is installed on the side of the inclined surface by sliding. The inclined surface of the adjustment seat, the upper surface of the adjustment seat is fixed with a rack by fixing bolts, the lower part of the outer side of the stand plate installed on the side of the first bottom plate close to the lug is provided with a rotation shaft, and the rotation shaft is connected to the The through holes on the lugs are matched and fixed, and the upper part of the side on which the rotating shaft is installed on the stand plate is welded and fixed with a connecting plate, and the opening of the connecting plate is fixedly connected with one end of the output rod through a fixing bolt. The other end is installed on the inner wall of the hydraulic cylinder by sliding, and the end of the hydraulic cylinder away from the output rod is welded and fixed on the inner side of the side plate.

Further, the length of the rack seat and the rack is equal to the distance between the stand plates.

Further, the driving gear and the driven gear are respectively meshed with a rack.

Further, lubricating oil is applied to the bottom of the adjustment seat and the bottom of the roll seat.

Compared with the prior art, the beneficial effect achieved by the utility model is that the rack adjustment assembly provided by the rack structure of the cold rolling mill has the functions of height adjustment and level adjustment, and only needs to rotate the screw rod and remove the fixing bolts. Yes, and the adjustments in the two directions do not interfere with each other. The adjustment method is convenient and quick to operate, and has strong universal applicability. At the same time, the structure of the rotating shaft, lugs and hydraulic cylinders is used to cooperate with each other, so as to realize the flipping function and facilitate the adjustment of the position on the roll stand. Rollers are replaced.

Description of drawings

The accompanying drawings are used to provide a further understanding of the utility model, and constitute a part of the description, and are used to explain the utility model together with the embodiments of the utility model, and do not constitute a limitation to the utility model.

Fig. 1 is a schematic view of the overall front view of the internal structure of the utility model.

Fig. 2 is a schematic diagram of the overall top view structure of the utility model.

Fig. 3 is a structural schematic diagram of the rack adjustment assembly of the present invention.

In the figure: 1. Roll seat; 2. Rack; 3. Driving gear; 4. Driven gear; 5. Upper roll; 6. Lower roll; 7. Rack; 8. Rack seat; 9. Adjusting seat; 10. screw; 11. stand plate; 12. first base plate; 13. second base plate; 14. third base plate; 15. rotating shaft; 16. lug; 17. fastening bolt; 18. hydraulic cylinder; 19 , side plate; 20, connecting plate; 21, output rod.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Please refer to Figures 1-3, the utility model provides a technical solution: a cold rolling mill rack structure, including a roll stand 1, a rack 2, a driving gear 3, a driven gear 4, an upper roll 5, and a lower roll 6. Rack 7, rack seat 8, adjustment seat 9, screw rod 10, seat plate 11, first bottom plate 12, second bottom plate 13, third bottom plate 14, rotating shaft 15, lug 16, fastening bolt 17 , hydraulic cylinder 18, side plate 19, connecting plate 20 and output rod 21, the bottom of the roll stand 1 is installed on the frame 2 by sliding, and the through holes on the upper and lower parts of the stand on both sides of the roll stand 1 are respectively aligned with each other through rolling bearings. The two ends of the roll 5 and the lower roll 6 are slewing bearings, one end of the upper roll 5 is fixedly connected with the groove on the inner wall of the through hole in the center of the circular surface of the driving gear 3 through a key, and the other end of the upper roll 5 is connected with the groove in the center of the circular surface of the driven gear 4 through a key. The groove on the inner wall of the through hole is fixedly connected, the bottom of the third bottom plate 14 is fixed on the upper surface of the long sides of the opening in the middle of the frame 2 by welding, and the short sides of the third bottom plate 14 on the side of the driving gear 3 are welded and fixed to the sides. plate 19, the upper surface of the third bottom plate 14 is fixedly connected to both sides of the long side of the second bottom plate 13 through fastening bolts 17, and the upper surface of the second bottom plate 13 is fixedly connected to both sides of the long side of the first bottom plate 12 through fixing bolts. A lug 16 is installed on the upper surface of the base plate 13 near the side of the driven gear 4, and a stand plate 11 is welded and fixed on both sides of the upper surface of the first base plate 12, and the stand plate 11 installed on the side of the first base plate 12 away from the lug 16 The central through hole on the outer side of the seat plate 11 is fixedly connected with the outer ring of the unthreaded side of the screw rod 10 through rolling bearings, and the outer ring at the other end of the screw rod 10 is screwed and connected with the inner wall of the threaded hole provided in the center of the vertical high side of the adjustment seat 9 through threads. Both the bottom of the adjustment seat 9 and the bottom of the roll seat 1 are coated with lubricating oil, the bottom of the adjustment seat 9 is installed on the upper surface of the first bottom plate 12 by sliding, and the inclined surface side of the rack seat 8 is installed on the inclined surface of the adjustment seat 9 by sliding On the surface, the upper surface of the adjustment seat 9 is fixedly equipped with a rack 7 by fixing bolts, the driving gear 3 and the driven gear 4 are respectively meshed with a rack 7, and the length of the rack seat 8 and the rack 7 is equal to the stand plate 11 The distance between the first base plate 12 and the lower part of the outer side of the seat plate 11 installed on the side near the lug 16 is provided with a rotating shaft 15, the rotating shaft 15 is fixed with the through hole on the lug 16, and the seat plate 11 is installed with The upper part of one side of the rotating shaft 15 is welded and fixed with a connecting plate 20, the opening of the connecting plate 20 is fixedly connected with one end of the output rod 21 through a fixing bolt, and the other end of the output rod 21 is installed on the inner wall of the hydraulic cylinder 18 by sliding, and the hydraulic cylinder 18 The end away from the output rod 21 is welded and fixed on the inner side of the side plate 19; before the device works, turn the screw 10 as required to make the adjustment seat 9 slide on the upper surface of the first bottom plate 12 due to the rotation of the screw 10, and control the upper surface through the inclined surface. The rack seat 8 moves linearly up and down to control the height of the rack 7. At the same time, slide the first base plate 12 to the desired position along the surface of the second base plate 13, and tighten the fixing bolts, and the rack 7 is adjusted. The height and horizontal position, at this time turn on the motor to drive the main The moving gear 3 rotates, so that the whole roll base 1 reciprocates on the frame 2 accordingly, and the upper roll 5 and the lower roll 6 reciprocately roll the tube billet. When the upper roll 5 needs to be replaced, it can be pulled out directly from the side. Replace and assemble the new upper roll 5. When the lower roll 6 needs to be replaced, under the action of the hydraulic cylinder 18, the output rod 21 is controlled to retract, and the connecting plate 20 is pulled. At this time, the first bottom plate 12 and the rotating shaft 15 circle the second bottom plate The lug 16 installed on the 13 is turned over until there is enough space to take out the lower roll 6 from the side and replace it. After the replacement, the output rod 21 is stretched out and restored to the initial state under the action of the hydraulic cylinder 18. At this time, the first The bottom plate 12 is turned back to the upper surface of the second bottom plate 13 again, and the circular operation can meet the needs of rolling steel pipes of different specifications.

It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is a relationship between these entities or operations. There is no such actual relationship or order between them. Furthermore, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus comprising a set of elements includes not only those elements, but also includes elements not expressly listed. other elements of or also include elements inherent in such a process, method, article, or device.

Finally, it should be noted that: the above is only a preferred embodiment of the utility model, and is not intended to limit the utility model, although the utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art , it is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims (4)

1. a kind of cold pilger mill rack structure, including roller base (1), rack (2), driving gear (3), driven gear (4), on roll Roller (5), bottom roll (6), rack gear (7), rack gear seat (8), adjusting seat (9), screw rod (10), stand plate (11), the first bottom plate (12), Second bottom plate (13), third bottom plate (14), rotary shaft (15), lug (16), fastening bolt (17), hydraulic cylinder (18), side plate (19), connecting plate (20) and output rod (21), roller base (1) bottom is by being slidably mounted on rack (2), the roll The through-hole of two side stand upper and lower parts of seat (1) pass through rolling bearing respectively to topping roll (5) and bottom roll (6) both ends into Row pivoting support, described topping roll (5) one end connect by the way that key and the through-hole wall groove in driving gear (3) disc center are fixed It connects, topping roll (5) other end is fixedly connected by key with the through-hole wall groove in driven gear (4) disc center, special Sign is:

Third bottom plate (14) bottom is described by being fixedly welded on the upper surfaces of rack (2) intermediate openings director side two sides The short side of the third bottom plate (14) of driving gear (3) side is welded with side plate (19), on the third bottom plate (14) Surface is fixedly connected by fastening bolt (17) with the second bottom plate (13) long side two sides, the second bottom plate (13) upper surface and the The long side two sides of one bottom plate (12) are fixedly connected by fixing bolt, and the second bottom plate (13) upper surface is close to driven gear (4) side is equipped with lug (16), and the upper surface long side two sides of first bottom plate (12) are welded with stand plate (11), institute It states center through hole on the outside of the stand plate (11) that the first bottom plate (12) are installed far from the side of lug (16) and passes through rolling bearing and spiral shell The side outer ring that bar (10) does not open up screw thread is fixedly connected, and screw rod (10) other end outer ring passes through screw thread and adjusting seat (9) The threaded hole inner wall that vertical high face side center opens up screws connection, and adjusting seat (9) bottom is by being slidably mounted on first Bottom plate (12) upper surface, the inclined surface side of the rack gear seat (8) by being slidably mounted on the inclined surface surface of adjusting seat (9), Adjusting seat (9) upper surface is fixedly installed with rack gear (7) by fixing bolt, and first bottom plate (12) is close to lug (16) Stand plate (11) outer lower portion of side installation be provided with rotary shaft (15), it is logical on the rotary shaft (15) and lug (16) Hole cooperation is fixed, and the upper lateral part that the stand plate (11) is equipped with rotary shaft (15) is welded with connecting plate (20), described The tapping of connecting plate (20) is fixedly connected with output rod (21) one end by fixing bolt, and output rod (21) other end is logical The inner wall for being slidably mounted on hydraulic cylinder (18) is crossed, the hydraulic cylinder (18) is fixedly welded on side plate far from the one end of output rod (21) (19) inside.

2. a kind of cold pilger mill rack structure according to claim 1, it is characterised in that: the rack gear seat (8) and rack gear (7) length is equal to the distance between stand plate (11).

3. a kind of cold pilger mill rack structure according to claim 1, it is characterised in that: the driving gear (3), driven Gear (4) is intermeshed with a rack gear (7) respectively.

4. a kind of cold pilger mill rack structure according to claim 1, it is characterised in that: adjusting seat (9) bottom and The bottom of roller base (1) is coated with lubricating oil.