阅读说明：本技术 一种高精度钢管热轧设备 (High-precision steel pipe hot rolling equipment ) 是由 张刘明 于 2021-06-22 设计创作，主要内容包括：本发明公开了一种高精度钢管热轧设备,包括左安装板,所述左安装板上设有贯穿所述左安装板的进料口,所述进料口右侧设有右安装板,所述右安装板上设有贯穿所述右安装板的出料口,所述左安装板内设有皮带传动腔,所述皮带传动腔的左侧壁内设有三个成环状阵列分布的从动滑槽,所述从动滑槽的左侧壁内设有皮带位置传动腔；本发明将轧轮的外形设置成螺旋形,使得钢管的受力点在轧制的过程中一直保持变化,从而平衡钢管受到的应力,而提高钢管的精度,而且本发明可自由调节轧轮之间的间距,减少需要根据不同直径钢管而更换不同轧轮的时间,提高了生产效率,并且在轧轮上设置了散热齿面,使得轧轮不会因为热膨胀而影响轧制的精度。(The invention discloses high-precision steel pipe hot rolling equipment which comprises a left mounting plate, wherein a feed inlet penetrating through the left mounting plate is formed in the left mounting plate, a right mounting plate is arranged on the right side of the feed inlet, a discharge outlet penetrating through the right mounting plate is formed in the right mounting plate, a belt transmission cavity is formed in the left mounting plate, three driven sliding chutes distributed in an annular array manner are formed in the left side wall of the belt transmission cavity, and a belt position transmission cavity is formed in the left side wall of each driven sliding chute; the invention sets the shape of the rolling wheel into a spiral shape, so that the stress point of the steel pipe is always kept to change in the rolling process, thereby balancing the stress on the steel pipe and improving the precision of the steel pipe.)

1. The utility model provides a high accuracy steel pipe hot rolling equipment, includes left mounting panel, its characterized in that: the left mounting plate is provided with a feed inlet penetrating through the left mounting plate, the right side of the feed inlet is provided with a right mounting plate, the right mounting plate is provided with a discharge outlet penetrating through the right mounting plate, the left mounting plate is internally provided with a belt transmission cavity, the left side wall of the belt transmission cavity is internally provided with three driven chutes distributed in an annular array, the left side wall of each driven chute is internally provided with a belt position transmission cavity, the driven chutes are internally and slidably provided with driven moving blocks, the upper end surface and the lower end surface of each driven chute are rotatably connected with a feed rod, the feed rod penetrates through the driven moving blocks, the right end surface of each driven moving block is rotatably connected with a rolling shaft, the rolling shafts are fixedly connected with conical belt pulleys, the conical belt pulleys are arranged in the belt transmission cavities, the right sides of the conical belt pulleys are provided with rotating shaft openings, and the rolling shafts extend out through the rotating shaft openings, the belt-type rolling machine is characterized in that a belt is connected to the three conical belt pulleys, a belt adjusting mechanism for controlling the position of the belt is arranged in a belt position transmission cavity, three moving chutes distributed in an annular array are arranged in the right mounting plate, moving blocks are arranged in the moving chutes in a sliding mode, a motor is fixedly arranged in the moving blocks only at the upper side, the left end face of the motor is in driving connection with rolling shafts, other rolling shafts are rotatably connected to the left end face of the moving blocks, rolling wheels are fixedly connected to the rolling shafts, lead screws are rotatably connected to the inner side end faces of the moving chutes, the moving blocks are in threaded connection with the lead screws, an interval transmission cavity is arranged in the outer side wall of the moving chutes, and an interval adjusting mechanism for controlling the lead screws to rotate is arranged in the right side wall of the interval transmission cavity.

2. A high precision steel pipe hot rolling apparatus according to claim 1, wherein: the belt adjusting mechanism comprises a belt power shaft which is rotatably arranged on the front end surface and the rear end surface of the belt position transmission cavity, a belt power gear is fixedly connected onto the belt power shaft, a first belt pulley is arranged on the rear side of the belt power gear, the first belt pulley is fixedly arranged on the belt power shaft, an adjusting rod gear shaft is arranged on the lower side of the first belt pulley, the adjusting rod gear shaft is rotatably arranged on the front end surface and the rear end surface of the belt position transmission cavity, a second belt pulley is fixedly connected onto the adjusting rod gear shaft, a transition belt is connected between the second belt pulley and the first belt pulley, an adjusting rod gear is arranged on the front side of the second belt pulley, the adjusting rod gear is fixedly connected onto the adjusting rod gear shaft, an adjusting rod chute is arranged on the lower side of the belt position transmission cavity, and a position adjusting rod is arranged in the adjusting rod chute in a sliding manner, the position adjusting rod is meshed with the adjusting rod gear, a first driving lever and a second driving lever are fixedly connected to the upper end face of the position adjusting rod, the first driving lever is arranged on the right side of the second driving lever, the belt is arranged between the first driving lever and the second driving lever, a second belt pulley is arranged on the right side of the second driving lever, and the second belt pulley is arranged on the right end face of the belt transmission cavity.

3. A high precision steel pipe hot rolling apparatus according to claim 1, wherein: the distance adjusting mechanism comprises a screw rod which is rotatably connected to the outer end face of the distance transmission cavity, a bevel gear is fixedly connected to the screw rod in the distance transmission cavity, a toothed ring is rotatably connected to the left end face of the toothed ring cavity, the bevel gear is meshed with the toothed ring, a holding rod is fixedly connected to the toothed ring, and the holding rod extends to the outer side of the right mounting plate.

4. A high precision steel pipe hot rolling apparatus according to claim 1, wherein: and scales are arranged on the outer end face of the right mounting plate, and the scales represent the applicable diameter of the steel pipe.

5. A high precision steel pipe hot rolling apparatus according to claim 1, wherein: the outer end face of the rolling wheel is provided with an uneven tooth face, the tooth face is used for increasing the contact area with air, heat dissipation is enhanced, and the influence on the precision of the steel pipe caused by thermal expansion of the rolling wheel is prevented.

6. A high precision steel pipe hot rolling apparatus according to claim 1, wherein: and a spiral rolling wheel is fixedly arranged on the rolling wheel.

Technical Field

The invention relates to the technical field of steel pipe processing, in particular to high-precision steel pipe hot rolling equipment.

Background

The hot rolling is a rolling process above the crystallization temperature, the texture of a hot-rolled steel pipe is denser than that of a common steel pipe, the mechanical property is improved, the precision of the steel pipe needs to be detected in the production process of the hot-rolled steel pipe, but the rolling wheels of the existing hot-rolled steel pipe in the rolling process are all in a rotor shape, so that the stress point of the steel pipe is always kept unchanged, the imbalance of stress in the steel pipe is easily caused, and the precision of the steel pipe is influenced because the steel pipe is in a high-temperature state in the hot rolling process and the contacted rolling wheels can be heated and expanded, and the traditional rolling wheels only aim at the steel pipe with one diameter, and the rolling wheels need to be replaced for the steel pipes with different diameters, so that the rolling efficiency is influenced.

Disclosure of Invention

The invention aims to provide high-precision steel pipe hot rolling equipment which is used for overcoming the defects in the prior art.

The high-precision steel pipe hot rolling equipment comprises a left mounting plate, wherein a feed inlet penetrating through the left mounting plate is formed in the left mounting plate, a right mounting plate is arranged on the right side of the feed inlet, a discharge outlet penetrating through the right mounting plate is formed in the right mounting plate, a belt transmission cavity is formed in the left mounting plate, three driven sliding grooves distributed in an annular array are formed in the left side wall of the belt transmission cavity, a belt position transmission cavity is formed in the left side wall of each driven sliding groove, a driven moving block is arranged in each driven sliding groove in a sliding mode, the upper end face and the lower end face of each driven sliding groove are rotatably connected with a polished rod, the polished rod penetrates through each driven moving block, a rolling shaft is rotatably connected to the right end face of each driven moving block, a conical belt pulley is fixedly connected to each rolling shaft, the conical belt pulley is arranged in the belt transmission cavity, and a rotating shaft opening is formed in the right side of the conical belt pulley, the rolling shaft extends out through the opening of the rotating shaft, three conical belt pulleys are connected with a belt, a belt adjusting mechanism for controlling the position of the belt is arranged in the belt position transmission cavity, three moving chutes distributed in an annular array are arranged in the right mounting plate, a moving block is arranged in the moving chute in a sliding manner, only the moving block at the upper side is fixedly provided with a motor, the left end surface of the motor is connected with the rolling shaft in a driving manner, the other rolling shafts are rotationally connected to the left end surface of the moving block, the rolling shafts are fixedly connected with rolling wheels, the inner side end surface of the movable sliding chute is rotationally connected with a screw rod, the screw rod is in threaded connection with the movable block, an interval transmission cavity is arranged in the outer side wall of the movable sliding groove, and an interval adjusting mechanism for controlling the screw rod to rotate is arranged in the right side wall of the interval transmission cavity.

Optionally, the belt adjusting mechanism includes a belt power shaft rotatably disposed on the front and rear end faces of the belt position transmission cavity, a belt power gear is fixedly connected to the belt power shaft, a first belt pulley is disposed on the rear side of the belt power gear, the first belt pulley is fixedly disposed on the belt power shaft, an adjusting rod gear shaft is disposed on the lower side of the first belt pulley, the adjusting rod gear shaft is rotatably disposed on the front and rear end faces of the belt position transmission cavity, a second belt pulley is fixedly connected to the adjusting rod gear shaft, a transition belt is connected between the second belt pulley and the first belt pulley, an adjusting rod gear is disposed on the front side of the second belt pulley, the adjusting rod gear is fixedly connected to the adjusting rod gear shaft, an adjusting rod sliding groove is disposed on the lower side of the belt position transmission cavity, and a position adjusting rod is slidably disposed in the adjusting rod sliding groove, the position adjusting rod is meshed with the adjusting rod gear, a first driving lever and a second driving lever are fixedly connected to the upper end face of the position adjusting rod, the first driving lever is arranged on the right side of the second driving lever, the belt is arranged between the first driving lever and the second driving lever, a second belt pulley is arranged on the right side of the second driving lever, and the second belt pulley is arranged on the right end face of the belt transmission cavity.

Optionally, the distance adjusting mechanism comprises a screw rod rotatably connected to the outer end face of the distance transmission cavity, a bevel gear is fixedly connected to the screw rod in the distance transmission cavity, a toothed ring is rotatably connected to the left end face of the toothed ring cavity, the bevel gear is meshed with the toothed ring, a holding rod is fixedly connected to the toothed ring, and the holding rod extends to the outer side of the right mounting plate.

Optionally, scales are arranged on the outer end face of the right mounting plate, and the scales indicate the applicable diameter of the steel pipe.

Optionally, the outer end face of the rolling wheel is provided with an uneven tooth face, and the tooth face is used for increasing the contact area with air, enhancing heat dissipation and preventing the precision of the steel pipe from being affected by thermal expansion of the rolling wheel.

Optionally, a spiral rolling wheel is fixedly arranged on the rolling wheel.

The invention has the beneficial effects that:

1. compared with the traditional rolling wheel, the invention designs the rolling wheel into a spiral shape, thereby leading the stress point in the rolling process to be continuously changed, balancing the stress in the steel pipe, improving the precision of the steel pipe,

2. the invention can freely change the distance between the rolling wheels through the transmission of the screw rod so as to be suitable for steel pipes with different diameters, save the time for replacing the rolling wheels and improve the production efficiency.

3. The invention is arranged on the heat dissipation tooth surface on the rolling wheel, thereby enhancing the heat dissipation of the rolling wheel and reducing the influence of the thermal expansion of the rolling wheel on the precision of the steel pipe.

Drawings

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.

FIG. 1 is a schematic view showing the construction of a hot rolling apparatus for a high-precision steel pipe according to the present invention;

FIG. 2 is a schematic view of the structure of FIG. 1;

FIG. 3 is a schematic view of the structure at A-A in FIG. 2;

FIG. 4 is a schematic view of the structure at B-B in FIG. 2;

FIG. 5 is a schematic view of the structure at C-C in FIG. 4;

fig. 6 is a schematic view of the structure at D-D in fig. 2.

Detailed Description

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Referring to fig. 1 to 6, the high-precision steel tube hot rolling equipment according to the embodiment of the invention comprises a left mounting plate 10, a feed inlet 23 penetrating through the left mounting plate 10 is arranged on the left mounting plate 10, a right mounting plate 31 is arranged on the right side of the feed inlet 23, a discharge outlet 24 penetrating through the right mounting plate 31 is arranged on the right mounting plate 31, a belt transmission cavity 11 is arranged in the left mounting plate 10, three driven chutes 15 distributed in an annular array are arranged in the left side wall of the belt transmission cavity 11, a belt position transmission cavity 12 is arranged in the left side wall of the driven chute 15, a driven moving block 17 is slidably arranged in the driven chute 15, the upper end face and the lower end face of the driven chute 15 are rotatably connected with a polished rod 16, the polished rod 16 penetrates through the driven moving block 17, a rolling shaft 22 is rotatably connected to the right end face of the driven moving block 17, and a conical pulley 19 is fixedly connected to the rolling shaft 22, the belt pulley 19 is arranged in the belt transmission cavity 11, a rotating shaft opening 20 is arranged on the right side of the belt pulley 19, the rolling shafts 22 extend out through the rotating shaft opening 20, three belt pulleys 18 are connected to the three belt pulleys 19, a belt adjusting mechanism 46 for controlling the position of the belt 18 is arranged in the belt position transmission cavity 12, three moving chutes 35 distributed in an annular array are arranged in the right mounting plate 31, moving blocks 34 are arranged in the moving chutes 35 in a sliding manner, only the upper moving block 34 is fixedly provided with a motor 32, the left end surface of the motor 32 is connected with the rolling shafts 22 in a driving manner, other rolling shafts 22 are connected to the left end surface of the moving block 34 in a rotating manner, the rolling shafts 22 are fixedly connected with rolling wheels 21, the inner end surface of the moving chute 35 is connected with a lead screw 33 in a rotating manner, and the moving block 34 is connected to the lead screw 33 in a threaded manner, an interval transmission cavity 36 is arranged in the outer side wall of the movable sliding chute 35, and an interval adjusting mechanism 45 for controlling the screw 33 to rotate is arranged in the right side wall of the interval transmission cavity 36.

Preferably, the belt adjusting mechanism 46 includes a belt power shaft 14 rotatably disposed on the front and rear end faces of the belt position transmission cavity 12, a belt power gear 13 is fixedly connected to the belt power shaft 14, a first belt pulley 41 is disposed on the rear side of the belt power gear 13, the first belt pulley 41 is fixedly disposed on the belt power shaft 14, an adjusting rod gear shaft 27 is disposed on the lower side of the first belt pulley 41, the adjusting rod gear shaft 27 is rotatably disposed on the front and rear end faces of the belt position transmission cavity 12, a second belt pulley 43 is fixedly connected to the adjusting rod gear shaft 27, a transition belt 42 is connected between the second belt pulley 43 and the first belt pulley 41, an adjusting rod gear 26 is disposed on the front side of the second belt pulley 43, the adjusting rod gear 26 is fixedly connected to the adjusting rod gear shaft 27, an adjusting rod chute 30 is disposed on the lower side of the belt position transmission cavity 12, a position adjusting rod 25 is arranged in the adjusting rod sliding groove 30 in a sliding mode, the position adjusting rod 25 is meshed with the adjusting rod gear 26, a first shifting rod 28 and a second shifting rod 29 are fixedly connected to the upper end face of the position adjusting rod 25, the first shifting rod 28 is arranged on the right side of the second shifting rod 29, the belt 18 is arranged between the first shifting rod 28 and the second shifting rod 29, a second belt pulley 43 is arranged on the right side of the second shifting rod 29, the second belt pulley 43 is arranged on the right end face of the belt transmission cavity 11, and the first shifting rod 28 and the second shifting rod 29 are used for adjusting the position of the belt 18, so that the belt 18 is always connected to the conical belt pulley 19.

Preferably, the distance adjusting mechanism 45 includes the screw rod 33 rotatably connected to the outer end surface of the distance transmission cavity 36, a bevel gear 37 is fixedly connected to the screw rod 33 in the distance transmission cavity 36, a gear ring 40 is rotatably connected to the left end surface of the gear ring cavity 39, the bevel gear 37 is engaged with the gear ring 40, a holding rod 38 is fixedly connected to the gear ring 40, the holding rod 38 extends to the outer side of the right mounting plate 31, and the gear ring 40 is used for controlling the distance between the rolling wheels 21 so as to be suitable for steel pipes with different diameters.

Preferably, the outer end face of the right mounting plate 31 is provided with a scale, and the scale represents the applicable diameter of the steel pipe.

Preferably, the outer end face of the rolling wheel 21 is provided with an uneven tooth surface, and the tooth surface is used for increasing the contact area with air, enhancing heat dissipation and preventing the rolling wheel 21 from thermal expansion to influence the precision of the steel pipe.

Preferably, a spiral rolling wheel is fixedly arranged on the rolling wheel 21.

In the initial state, the belt 18 is at the leftmost position on the conical pulley 19, and the moving block 34 abuts against the inner end face of the moving chute 35, with the smallest distance between the rolling wheels 21.

Firstly, adjusting the distance between rolling wheels 21 according to the diameter of a steel pipe, holding a holding rod 38, rotating a gear ring 40, wherein the gear ring 40 drives a bevel gear 37 to rotate, the bevel gear 37 drives a screw rod 33 to rotate, the screw rod 33 rotates to enable a moving block 34 to move, the moving block 34 moves to enable a rolling shaft 22 to move, the rolling shaft 22 drives a driven moving block 17 to move, the driven moving block 17 drives a belt power gear 13 to rotate, the belt power gear 13 drives a first belt pulley 41 to rotate through a belt power shaft 14, the first belt pulley 41 drives a second belt pulley 43 to rotate through a transition belt 42, the second belt pulley 43 drives an adjusting rod gear 26 to rotate through an adjusting rod gear shaft 27, the adjusting rod gear 26 drives a position adjusting rod 25 to move, the position adjusting rod 25 drives a first shift lever 28 and a second shift lever 29 to move, and the first shift lever 28 pushes the belt 18 to move, so that the first shift lever 28 is always connected to a conical belt pulley 19;

the steel pipe is placed from the feeding hole 23, the motor 32 is started, the motor 32 drives the rolling wheel 21 on the upper side to rotate through the belt 2, the rolling shaft 22 is driven by the conical belt pulley 19 and the belt 18, other rolling wheels 21 also rotate, the steel pipe is rolled by the spiral rolling wheel on the rolling wheel 21, the spiral rolling wheel is spiral, the stress point of the steel pipe is constantly changed and is acted in a matched stress mode, the rolling precision of the steel pipe is improved, the rolling wheel 21 can well dissipate heat due to the heat dissipation tooth surface on the rolling wheel 21, and the precision of the steel pipe is prevented from being influenced by thermal expansion of the rolling wheel 21.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.