CN210647805U

CN210647805U - Tractor for section bar

Info

Publication number: CN210647805U
Application number: CN201921650838.XU
Authority: CN
Inventors: 王刚; 韩永军
Original assignee: Xi'an High Intelligent Technology Co ltd
Current assignee: Xi'an High Intelligent Technology Co ltd
Priority date: 2019-09-30
Filing date: 2019-09-30
Publication date: 2020-06-02
Anticipated expiration: 2029-09-30

Abstract

The utility model discloses a section tractor, which comprises a first supporting bearing seat group and a second supporting bearing seat group which are arranged in a first mounting port group and a second mounting port group; a lower roller set is arranged in the first supporting bearing seat group and the second supporting bearing seat group; an upper roller set which is matched with the lower roller set and is adjusted in position through a hydraulic cylinder is arranged above the lower roller set; the servo motor unit is connected with the lower roller group. The utility model provides a prior art exist can not carry out a plurality of traction of same material embryo and the problem that different material embryos need transform equipment to pull, reached and to have adjusted according to the size and the characteristics of material embryo and pull a plurality of same material embryos simultaneously, improved production efficiency and reduced intensity of labour's technological effect.

Description

Tractor for section bar

Technical Field

The utility model relates to a cast iron section bar pulls technical field, concretely relates to tractor for section bar.

Background

The horizontal continuous casting technology of cast iron has been developed for 30 years in China, the technology and equipment are improved day by day, the application field and the number of the cast iron sections are continuously expanded, how to produce the cast iron sections with different section sizes and types, the related key technical and equipment problems are solved, the product types of the cast iron sections are further enriched, the advantages of the cast iron sections are brought into play, and the improvement of the level of the equipment manufacturing industry in China becomes a hot point problem. On the basis of summarizing the characteristics of the cast iron section and the gap between China and international well-known enterprises, the development trend and direction of the horizontal continuous casting technology and the application of the cast iron section are provided. With the development of industry and assembly manufacturing industry, special section bars need to be manufactured when construction or processing operation is carried out; for example, the construction of buildings, bridges, the manufacture of large-scale mechanical equipment and the like require sectional materials; the profile processing is a necessary procedure in the manufacturing industry, particularly in steel production units, relates to the shape of the profile leaving the factory, and the conventional traction machine is generally single in structure and power, can only be used for traction on profiles of one specification or only one profile at the same time, and is low in efficiency.

Disclosure of Invention

In order to overcome the above-mentioned defect of prior art, the utility model relates to a tractor for section bar has solved prior art and has had a plurality of traction that can not carry out same material base and the traction of different material bases needs transform equipment, has reached and can adjust according to the size and the characteristics of material base and pull many same material bases simultaneously, has improved production efficiency and has reduced intensity of labour's technological effect.

In order to achieve the above purpose, the utility model provides a following technical scheme:

a section bar tractor comprises a frame, wherein a feed inlet is formed in one side of the frame, and a discharge outlet parallel to the feed inlet is formed in the other side of the frame; one side of the rack is provided with a first mounting port group, and the other side of the rack is provided with a second mounting port group parallel to the first mounting port group; a first supporting bearing seat group is fixed on the first mounting port group; a second supporting bearing seat group is fixed on the second mounting port group; a lower roller set is arranged between the first supporting bearing seat group and the second supporting bearing seat group; a servo motor unit is arranged on the outer side of the first mounting port group; the servo motor unit is connected with the lower roller group through a coupling group;

the top of the rack is provided with an upper mounting frame group, and the middle part of the upper mounting frame group is provided with a hydraulic cylinder group; hollow guide sleeve sets are arranged on two sides of the upper mounting frame set; the guide sleeve group is provided with an installation guide column group; an upper roller support group is arranged at the lower part of the mounting guide column group, and the upper part of the upper roller support group is fixedly connected with a hydraulic rod of the hydraulic cylinder group; and an upper roller set is arranged in the upper roller support set.

Further, the coupling group comprises a roller chain type coupling I, a roller chain type coupling II and a roller chain type coupling III; the upper roller group comprises an upper roller I, an upper roller II and an upper roller III; the mounting guide post group comprises a first mounting guide post, a second mounting guide post and a third mounting guide post; the upper roller support group comprises an upper roller support I, an upper roller support II and an upper roller support III; the hydraulic cylinder group comprises a first hydraulic cylinder, a second hydraulic cylinder and a third hydraulic cylinder; the upper mounting frame group comprises an upper mounting frame I, an upper mounting frame II and an upper mounting frame III; the guide sleeve group comprises a first guide sleeve, a second guide sleeve and a third guide sleeve.

Furthermore, a hydraulic cylinder I, a hydraulic cylinder II and a hydraulic cylinder III are correspondingly arranged at the centers of the upper mounting frame I, the upper mounting frame II and the upper mounting frame III respectively; the two sides of the first upper mounting frame, the second upper mounting frame and the third upper mounting frame are respectively provided with a first guide sleeve, a second guide sleeve and a third guide sleeve; a first guide pillar, a second guide pillar and a third guide pillar are arranged in the first guide sleeve, the second guide sleeve and the third guide sleeve; the first mounting guide pillar, the second mounting guide pillar and the third mounting guide pillar are respectively provided with a first upper roll support, a second upper roll support and a third upper roll support; the first upper roll support, the second upper roll support and the third upper roll support are internally and correspondingly provided with a first upper roll, a second upper roll and a third upper roll respectively; the upper roll support I, the upper roll support II and the upper roll support III are fixedly connected with a hydraulic rod I, a hydraulic rod II and a hydraulic rod III which are respectively arranged on the hydraulic cylinder I, the hydraulic cylinder II and the hydraulic cylinder III.

Further, the lower roll group comprises a first lower roll, a second lower roll and a third lower roll; the servo motor unit comprises a motor base I, a motor base II and a motor base III; the first motor base, the second motor base and the third motor base are respectively provided with a first servo motor, a second servo motor and a third servo motor; the first servo motor, the second servo motor and the third servo motor are provided with a first rotating shaft, a second rotating shaft and a third rotating shaft; the first rotating shaft, the second rotating shaft and the third rotating shaft are respectively connected with the first cycloidal speed reducer, the second cycloidal speed reducer and the third cycloidal speed reducer; the first cycloidal reducer, the second cycloidal reducer and the third cycloidal reducer are respectively connected with the first roller chain coupling, the second roller chain coupling and the third roller chain coupling; the roller chain type coupling I, the roller chain type coupling II and the roller chain type coupling III are respectively connected with the lower roller I, the lower roller II and the lower roller III.

Further, the first mounting port group comprises a first mounting port, a second mounting port and a third mounting port; the second mounting port group comprises a fourth mounting port, a fifth mounting port and a sixth mounting port; the first mounting port, the second mounting port and the third mounting port are horizontally arranged in parallel with the fourth mounting port, the fifth mounting port and the sixth mounting port respectively;

the first support bearing seat group comprises a first bearing seat, a second bearing seat and a third bearing seat; the second support bearing seat group comprises a fourth bearing seat, a fifth bearing seat and a sixth bearing seat; the bearing seat I, the bearing seat II, the bearing seat III, the bearing seat IV, the bearing seat V and the bearing seat VI are respectively arranged in parallel horizontally; the lower roller I is arranged between the bearing block I and the bearing block IV; the lower roller II is arranged between the bearing block II and the bearing block V; the lower roller III is arranged between the bearing seat III and the bearing seat VI;

the first bearing seat and the fourth bearing seat are respectively fixed on the first mounting opening and the fourth mounting opening; the second bearing seat and the fifth bearing seat are respectively fixed on the second mounting opening and the fifth mounting opening; and the third bearing seat and the sixth bearing seat are respectively fixed on the third mounting opening and the sixth mounting opening.

Further, the upper roller group and the lower roller group are arranged in parallel; the servo motor unit is connected with a PLC programmable computer control unit of the working state of the controller.

Furthermore, each upper roller of the upper roller group is provided with an upper annular groove which is coaxial with the upper roller; each lower roller of the lower roller group is provided with a lower annular groove which is coaxial with the lower roller; each upper roller of the upper roller set is provided with a V-shaped upper annular groove which is coaxial with the upper roller; a V-shaped lower annular groove coaxial with each lower roller of the lower roller set is arranged on the roller surface of each lower roller; and friction ridges are axially arranged on the roller surface of each lower roller of the lower roller set.

Furthermore, the PLC programmable computer control unit comprises revolution detectors arranged on the upper roller group and the lower roller group and temperature detectors arranged on the servo motor unit; the device is used for alarming when the revolution number is abnormal or the temperature is abnormal.

For further clarification the utility model discloses the technical effect of tractor provides a traction method:

a method of towing comprising the steps of:

according to the characteristics and the sizes of the section bar and the blank, one group or two groups or three groups of rollers are used for traction;

after the number of pairs of the used roller sets is determined, the PLC programmable computer control unit controls a hydraulic cylinder set therein to perform initial adjustment of the up-down adjustment position on the upper roller set, and after the initial adjustment, the PLC programmable computer control unit controls a servo motor to work, and the lower roller set performs slow rolling;

conveying the section, blank or bar to a feed inlet; the section, the blank or the bar stock enters a traction machine for traction;

adjusting the position of the upper roller group again until the upper roller group is attached to the upper surface of the object to be drawn;

the servo motor is controlled by the PLC unit to accelerate the lower roller set to a normal preset revolution;

when the pulled object is completely discharged from the discharge hole, the lower roller set decelerates to perform the next operation.

Further, when a plurality of different blanks or profiles are required to be drawn or a plurality of blanks with the same specification are required to be drawn, the method comprises the following steps:

three or more pairs of rollers are determined according to the characteristics and the sizes of the section bar and the blank;

after the number of the three used paired roller sets is determined, the three hydraulic cylinders are controlled by the PLC unit to perform initial adjustment of the vertical adjustment positions of the three upper rollers, the three servo motors are controlled to work after the initial adjustment, and then the three lower rollers roll at a low speed;

adjusting the positions of the three upper rollers again until the upper rollers are attached to the upper surface of the pulled object;

adjusting the three hydraulic cylinders to enable the three upper rollers to carry out pressure test on the pulled object until the pressure is more than 17000 N.M;

the servo motor is controlled by the PLC unit to accelerate the three lower rolls to a normal preset revolution;

when the pulled objects are completely discharged from the discharge hole, the three lower rollers decelerate to perform the next operation.

Compared with the prior art, the utility model has the advantages as follows:

1. the utility model discloses a section tractor, which comprises a frame, wherein one side of the frame is provided with a feed inlet, and the other side of the frame is provided with a discharge outlet parallel to the feed inlet; one side of the rack is provided with a first mounting port group, and the other side of the rack is provided with a second mounting port group parallel to the first mounting port group; a first supporting bearing seat group is fixed on the first mounting port group; a second supporting bearing seat group is fixed on the second mounting port group; a lower roller set is arranged between the first supporting bearing seat group and the second supporting bearing seat group; a servo motor unit is arranged on the outer side of the first mounting port group; the servo motor unit is connected with the lower roller group through a coupling group;

the top of the rack is provided with an upper mounting frame group, and the middle part of the upper mounting frame group is provided with a hydraulic cylinder group; hollow guide sleeve sets are arranged on two sides of the mounting frame set; the guide sleeve group is provided with an installation guide column group; an upper roller support group is mounted at the lower part of the mounting guide column group, and the upper part of the upper roller support group is fixedly connected with a hydraulic rod of the hydraulic cylinder group; and an upper roller set is arranged in the upper roller support set.

2. The traction method of the utility model comprises that one group or two groups or three groups of pairs of rollers are used for traction according to the characteristics and the size of the section bar and the material blank;

after the number of pairs of books of the used roller set is determined, the PLC programmable computer control unit controls a hydraulic cylinder set therein to perform initial adjustment of the up-down adjusting position on the upper roller set, and after the initial adjustment, the PLC programmable computer control unit controls a servo motor to work, and the lower roller set rolls at a low speed;

Drawings

FIG. 1 is a schematic view showing a structure of a servo motor unit and an upper roller set;

FIG. 2 is a schematic view showing the construction of the lower set of rollers and the hydraulic cylinder;

FIG. 3 is a rear view of a profile tractor;

FIG. 4 is a schematic exploded view of a first pair of roll sets;

FIG. 5 is a schematic exploded view of a second pair of roll stacks;

FIG. 6 is a schematic illustration of a third pair of roll sets in exploded form;

FIG. 7 is a schematic view of the overall structure;

FIG. 8 is an exploded view of a first pair of roller sets;

fig. 9 is an electric control schematic diagram of the present invention;

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Description of the drawings: it is obvious that the invention mainly provides a concept, all technical features details of which cannot be fully refined, and nothing disclosed is left to the knowledge and height of a person skilled in the art to choose from.

Example 1, described in conjunction with figures 1-9.

A section bar tractor comprises a rack 666, wherein a feeding hole 1 is formed in one side of the rack 666, and a discharging hole 2 parallel to the feeding hole 1 is formed in the other side of the rack 666; a first mounting port group 3 is arranged on one side of the rack 666, and a second mounting port group 4 parallel to the first mounting port group 3 is arranged on the other side of the rack 666; a supporting bearing seat group I5 is fixed on the mounting port group I3; a second support bearing seat group 6 is fixed on the second mounting port group 4; a lower roller set 7 is arranged between the first support bearing seat group 5 and the second support bearing seat group 6; a servo motor unit 8 is arranged on the outer side of the mounting port group I3; the servo motor unit 8 is connected with the lower roller group 7 through a coupling group 9;

an upper mounting frame group 10 is arranged at the top of the rack 666, and a hydraulic cylinder group 11 is arranged in the middle of the upper mounting frame group 10; a hollow guide sleeve group 12 is arranged at two sides of the upper mounting frame group 10; the guide sleeve group 12 is provided with a guide column group 13; an upper roll support group 14 is arranged at the lower part of the mounting guide column group 13, and the upper part of the upper roll support group 14 is fixedly connected with a hydraulic rod 15 of the hydraulic cylinder group 11; an upper roller set 16 is arranged in the upper roller support set 14.

In the embodiment of this application, adopt a plurality ofly to cooperate the roller set, make the traction force greatly increased of whole tractor, it is further, because the hydraulic pressure of last roller set goes up and down to set up, can carry out the upper and lower regulation of height according to the blank size of difference, can realize a plurality of simultaneous introductions of same model blank, also can realize not equidimension, different materials, the heterogeneous product that different traction force size required pulls, it can be a tractor serves several purposes to have, the traction range is wide, traction efficiency is high, greatly reduced cost and human labor's technological effect.

On the basis of the embodiment 1, the embodiment 2 is combined with the attached figures 1-9.

The following detailed description is made in terms of a specific technical scheme and the accompanying drawings, and the coupling group 9 comprises a roller chain type coupling I9-1, a roller chain type coupling II 9-2 and a roller chain type coupling III 9-3; the upper roller group comprises an upper roller I16-1, an upper roller II 16-2 and an upper roller III 16-3; the mounting guide post group 13 comprises a first mounting guide post 13-1, a second mounting guide post 13-2 and a third mounting guide post 13-3; the upper roll support group 14 comprises a first upper roll support 14-1, a second upper roll support 14-2 and a third upper roll support 14-3; the hydraulic cylinder group 11 comprises a first hydraulic cylinder 11-1, a second hydraulic cylinder 11-2 and a third hydraulic cylinder 11-3; the upper mounting frame group 10 comprises an upper mounting frame I10-1, an upper mounting frame II 10-2 and an upper mounting frame III 10-3; the guide sleeve group 12 comprises a guide sleeve I12-1, a guide sleeve II 12-2 and a guide sleeve III 12-3.

Furthermore, the centers of the first upper mounting frame 10-1, the second upper mounting frame 10-2 and the third upper mounting frame 10-3 are respectively and correspondingly provided with a first hydraulic cylinder 11-1, a second hydraulic cylinder 11-2 and a third hydraulic cylinder 11-3; the guide sleeve I12-1, the guide sleeve II 12-2 and the guide sleeve III 12-3 are respectively arranged on two sides of the upper mounting rack I10-1, the upper mounting rack II 10-2 and the upper mounting rack III 10-3; the guide sleeve I12-1, the guide sleeve II 12-2 and the guide sleeve III 12-3 are internally provided with a guide post I13-1, a guide post II 13-2 and a guide post III 13-3; the first mounting guide pillar 13-1, the second mounting guide pillar 13-2 and the third mounting guide pillar 13-3 are respectively provided with a first upper roll bracket 14-1, a second upper roll bracket 14-2 and a third upper roll bracket 14-3; an upper roller I16-1, an upper roller II 16-2 and an upper roller III 16-3 are correspondingly arranged in the upper roller bracket I14-1, the upper roller bracket II 14-2 and the upper roller bracket III 14-3 respectively; the upper parts of the upper roll support I14-1, the upper roll support II 14-2 and the upper roll support III 14-3 are fixedly connected with a hydraulic rod I15-1, a hydraulic rod II 15-2 and a hydraulic rod III 15-3 which are arranged on the hydraulic cylinder I11-1, the hydraulic cylinder II 11-2 and the hydraulic cylinder III 11-3 respectively.

Further, the lower roller group 7 comprises a first lower roller 7-1, a second lower roller 7-2 and a third lower roller 7-3; the servo motor unit 8 comprises a motor base I8-1, a motor base II 8-2 and a motor base III 8-3; the motor seat I8-1, the motor seat II 8-2 and the motor seat III 8-3 are respectively provided with a servo motor I8-11, a servo motor II 8-22 and a servo motor III 8-33; the first servo motor 8-11, the second servo motor 8-22 and the third servo motor 8-33 are provided with a first rotating shaft 8-1111, a second rotating shaft 8-2222 and a third rotating shaft 8-3333; the rotating shaft I8-1111, the rotating shaft II 8-2222 and the rotating shaft III 8-3333 are respectively connected with the cycloidal speed reducer I8-111, the cycloidal speed reducer II 8-222 and the cycloidal speed reducer III 8-333; the cycloid speed reducer I8-111, the cycloid speed reducer II 8-222 and the cycloid speed reducer III 8-333 are respectively connected with the roller chain type coupling I9-1, the roller chain type coupling II 9-2 and the roller chain type coupling III 9-3; the roller chain type coupling I9-1, the roller chain type coupling II 9-2 and the roller chain type coupling III 9-3 are respectively connected with the lower roller I7-1, the lower roller II 7-2 and the lower roller III 7-3.

Further, the mounting port group I3 comprises a mounting port I3-1, a mounting port II 3-2 and a mounting port III 3-3; the mounting port group II 4 comprises a mounting port IV 4-1, a mounting port V4-2 and a mounting port VI 4-3; the first mounting opening 3-1, the second mounting opening 3-2 and the third mounting opening 3-3 are horizontally arranged in parallel with the fourth mounting opening 4-1, the fifth mounting opening 4-2 and the sixth mounting opening 4-3 respectively;

the supporting bearing seat group 5I comprises a bearing seat I5-1, a bearing seat II 5-2 and a bearing seat III 5-3; the supporting bearing seat group II 6 comprises a bearing seat IV 6-1, a bearing seat V6-2 and a bearing seat VI 6-3; the bearing seat I5-1, the bearing seat II 5-2, the bearing seat III 5-3, the bearing seat IV 6-1, the bearing seat V6-2 and the bearing seat VI 6-3 are respectively arranged horizontally in parallel; the lower roller I7-1 is arranged between the bearing block I5-1 and the bearing block IV 6-1; the lower roller II 7-2 is arranged between the bearing block II 5-2 and the bearing block V6-2; the lower roller III 5-3 is arranged between the bearing seat III 5-3 and the bearing seat VI 6-3;

the bearing seat I5-1 and the bearing seat IV 6-1 are respectively fixed on the mounting opening I3-1 and the mounting opening IV 4-1; the bearing seat II 5-2 and the bearing seat V6-2 are respectively fixed on the mounting opening II 3-2 and the mounting opening V4-2; and the bearing seat III 5-3 and the bearing seat VI 6-3 are respectively fixed on the mounting opening III 3-3 and the mounting opening VI 4-3.

Further, the upper roller set 16 is arranged in parallel with the lower roller set 7; the servo motor unit 8 is connected with a PLC programmable computer control unit 17 of the working state of the controller.

Further, each upper roller of said upper set of rollers 16 has a roller surface provided with an upper annular groove 18 coaxial therewith; a lower annular groove 19 which is coaxial with each lower roller of the lower roller group 7 is arranged on the roller surface of each lower roller; each upper roll of the upper roll group 16 is provided with a V-shaped upper annular groove 20 which is coaxial with the upper roll; a V-shaped lower annular groove 21 which is coaxial with each lower roller of the lower roller group 7 is arranged on the roller surface of each lower roller; each lower roll of the lower roll group 7 has a roll surface provided with a friction ridge 22 in the axial direction.

Further, the PLC programmable computer control unit 17 comprises a revolution detector 23 arranged on the upper roller group 16 and the lower roller group 7, and a temperature detector 24 arranged on the servo motor unit 8; the device is used for alarming when the revolution number is abnormal or the temperature is abnormal.

Specifically, two groups of rollers are used for traction according to the characteristics and the sizes of the section bar and the blank;

after the number of the two used group roller sets is determined, the PLC programmable computer control unit controls the two hydraulic cylinders to perform initial adjustment of the up-down adjusting positions of the two upper rollers, after the initial adjustment, the two servo motors are controlled to work, and then the two lower rollers perform slow rolling;

conveying two bar-shaped rectangular gray iron rods with different models and specifications and diameters of 100 mm and two bar-shaped circular iron rods with diameters of 200 mm to a feeding hole; respectively putting the two kinds of bars into a traction machine for traction;

adjusting the positions of the two upper rollers again until the upper rollers are attached to the upper surface of the pulled object;

adjusting the two hydraulic cylinders to enable the two upper rollers to carry out pressure test on the pulled object until the pressure is 17100 N.M;

the servo motor is controlled by the PLC unit to accelerate the two lower rolls to a normal preset revolution;

when the pulled object is completely discharged from the discharge hole, the two lower rollers are decelerated to carry out the next operation.

In this application embodiment, adopt a plurality of subassemblies cooperation, pull two while with the section bar of same model, specification for the traction force greatly increased of whole tractor makes things convenient for dispatch and control, in time reminds proruption situation. In the profile extrusion process, in order to reduce the bending and twisting phenomena and improve the finished product percent of pass, the profile must be guided and pulled. The machine is driven by a servo motor and controlled by a Programmable Logic Controller (PLC), has the characteristics of high automation degree, simple operation, stable performance and the like, and can be matched with an automatic outlet saw and an extruder to realize complete linkage production. The arranged annular grooves and the friction ridges increase the friction coefficient of the roller surface, reduce positive pressure and prevent the indentation phenomenon on the surface of the strip.

Example 3 is described in conjunction with figures 1-9, based on example 2.

In order to further explain the advantages of the tractor of the utility model, the traction method of the utility model is provided for simultaneously drawing a plurality of same products, which comprises that two groups of rollers are used for drawing according to the characteristics and the size of the section bar and the blank;

conveying two bar materials with the same type and the same specification of ductile iron bar materials and the diameter of 100 mm to a feeding hole; respectively putting the two kinds of bars into a traction machine for traction;

In the embodiment of this application, adopt two to cooperate the roller set, two of the section bars of same model, specification are pull simultaneously for the traction force greatly increased of whole tractor, it is further, because the hydraulic pressure of last roller set goes up and down to set up, can carry out the upper and lower regulation of height according to the bar size of difference, can realize that a plurality of same model bar pull simultaneously, have can be said a tractor serves several purposes, convenient operation, the traction range is wide, efficient, greatly reduced cost and human labor's technological effect.

The working principle of the tractor is described in detail below with reference to the accompanying drawings 1-9:

the tractor mainly comprises 2 pairs of running rollers that are parallel to each other, and wherein the running roller is the traction drive roller, passes through cycloid needle speed reducer, roller chain formula shaft coupling drive by 2 AC servo motor, and the highly fixed of 2 lower drive rollers, 2 last rolls are driven by hydraulic cylinder and are reciprocated, compress tightly cast iron section bar, realize the function of passing roller and running roller friction traction to same excellent footpath section bar. When the dummy ingot passes through the rollers, the two pairs of rollers are used for traction when lifting adjustment is carried out on the pair of rollers, so that enough torque (not less than 17000 N.M) required by traction can be ensured. When a product with a smaller specification is produced, only one pair of rollers is needed to work after passing through the rollers, and the pair of rollers have a rest, so that 1/4 electricity charges can be saved. In addition, in case of some pair of rollers breaking down, another pair of rollers can still continue normal production less specification product, play the standby role, very necessary.

The hydraulic system of the tractor only works when the traction rod goes through the roller and goes up and down, the frequency is very low, so that a manual hydraulic control valve is adopted, the design is simple and convenient, the normal work of the system is ensured, and the problem that a hydraulic-electric system is easy to break down is solved.

The pressing force of the oil cylinder of the tractor can be adjusted according to the actual working condition, and the oil pressure adjusting range of the system is 2 MPa. When producing large section, the pressure is adjusted to be large, otherwise, the pressure can be properly adjusted to be small, but a special person is required to operate.

The setting and the adjustment of drawing process parameters can be realized through the touch screen of the master control operation table, and the control of the tractor is realized.

Example 4 is described in conjunction with figures 1-9, based on example 3.

The other traction method of the utility model is provided for the simultaneous traction of a plurality of different products, which comprises that three groups of pairs of rollers are used according to the characteristics and the size of the section bar and the material blank;

the sectional materials with the same type of rectangular gray iron rod and the diameters of 100 mm, 200 mm and 300 mm are conveyed to a feeding hole; respectively putting the three profiles into a tractor for traction;

adjusting the three hydraulic cylinders to enable the three upper rollers to carry out pressure test on the pulled object until the pressure is 17200 N.M;

In the embodiment of this application, adopt three to cooperate the roller set, with same model, the three while of the section bar of different specifications pulls for the traction force greatly increased of whole tractor, it is further, because the hydraulic pressure of last roller set goes up and down to set up, can carry out the upper and lower regulation of height according to the bar size of difference, can realize that a plurality of same model, different section bars pull simultaneously, have can be said a tractor serves several purposes, convenient operation, the wide, efficient of traction range, greatly reduced cost and human labor's technological effect.

the tractor mainly comprises 3 pairs of running rollers that are parallel to each other, and wherein the running roller is the traction drive roller, passes through cycloid needle speed reducer, roller chain formula shaft coupling drive by 3 AC servo motor, and 3 fixed highly of running roller, 3 last rolls are driven by hydraulic cylinder and reciprocate, compress tightly or break away from dummy bar or cast iron section bar stick, realize the function of passing the roller and the running roller friction traction of different rod footpath section bars. When the dummy ingot passes through the rollers, the two pairs of rollers are used for traction when lifting adjustment is carried out on the pair of rollers, so that enough torque (not less than 17000 N.M) required by traction can be ensured. When a product with a smaller specification is produced, only two pairs of rollers are needed to work after passing through the rollers, and the pair of rollers have a rest, so that 1/3 electricity charges can be saved. In addition, in case of some pair of rollers breaking down, the other two pairs of rollers can still continue to produce smaller specification products normally, play a standby role, very necessary.

In addition, due to the adoption of three pairs of rollers, the distance between the rollers is properly increased, so that the smoothness of passing the rollers is ensured during the production of the large rod, and the appearance of the equipment is higher.

The pressing force of the oil cylinder of the tractor can be adjusted according to the actual working condition, and the oil pressure of the system is adjusted to 10 MPa. When producing large section, the pressure is adjusted to be large, otherwise, the pressure can be properly adjusted to be small, but a special person is required to operate.

Example 5 is described in conjunction with figures 1-9, based on example 4.

The other traction method of the utility model is provided for the simultaneous traction of a plurality of different products, which comprises that four groups of pairs of rollers are determined according to the characteristics and the size of the section bar and the blank;

after the number of the four used paired roller sets is determined, the four hydraulic cylinders are controlled by the PLC unit to perform initial adjustment of the up-down adjustment positions on the four upper rollers, the four servo motors are controlled to work after the initial adjustment, and then the four lower rollers roll at a low speed;

conveying rectangular gray iron rods with different models and diameters of 100 mm, round iron rods with the diameters of 200 mm, ball iron rods (squares) with the diameters of 300 mm, special-shaped cast iron with the diameters of 400 mm and four profiles with different specifications to a feeding hole; respectively putting the four profiles into a tractor for traction;

adjusting the positions of the four upper rollers again until the upper rollers are attached to the upper surface of the pulled object;

adjusting the four hydraulic cylinders to enable the four upper rollers to carry out pressure test on the pulled object until the pressure is 17300 N.M;

the servo motor is controlled by the PLC unit to accelerate the four lower rolls to a normal preset revolution;

when the pulled object is completely discharged from the discharge hole, the four lower rollers decelerate to perform the next operation.

In the embodiment of this application, adopt four to cooperate the roller set, pull four while with different models, the section bar of different specifications for the traction force greatly increased of whole tractor, it is further, because the hydraulic pressure of last roller set goes up and down to set up, can carry out the upper and lower regulation of height according to the section bar size of difference, can realize that the section bar of different models, different specifications is a plurality of to pull simultaneously, have can be said a tractor serves several purposes, convenient operation, it is wide to pull the scope, efficient, greatly reduced cost and human labor's technological effect.

the tractor mainly comprises 4 pairs of running rollers that are parallel to each other, and wherein the running roller is the traction drive roller, passes through cycloid needle speed reducer, roller chain formula shaft coupling drive by 4 AC servo motor, and 4 fixed highly of running roller down, 4 last rolls by hydraulic cylinder drive reciprocate, compress tightly or break away from dummy bar or cast iron section bar stick, realize the function of passing the roller and the running roller friction traction of different rod footpath section bars. When the dummy ingot passes through the rollers, the two pairs of rollers are used for traction when lifting adjustment is carried out on the pair of rollers, so that enough torque (not less than 17000 N.M) required by traction can be ensured. When a product with a smaller specification is produced, only two pairs of rollers are needed to work after passing through the rollers, and the two pairs of rollers have a rest, so that 1/2 electricity charges can be saved. In addition, in case of some pair of rollers breaking down, the other three pairs of rollers can still continue to produce smaller specification products normally, play a standby role, very necessary.

In addition, because the four pairs of rollers are adopted, the distance between the rollers is properly increased, the smooth passing of the rollers is ensured during the production of the large rod, and the appearance of the equipment is more high.

The pressing force of the oil cylinder of the tractor can be adjusted according to the actual working condition, and the oil pressure of the system is adjusted to 12 MPa. When producing large section, the pressure is adjusted to be large, otherwise, the pressure can be properly adjusted to be small, but a special person is required to operate.

Example 6 is described in conjunction with figures 1-9, based on example 5.

The other traction method of the utility model is provided for the simultaneous traction of a plurality of different products, which comprises that six groups of pairs of rollers are used according to the characteristics and the size of the section bar and the material blank;

after the number of the used six paired roller sets is determined, six hydraulic cylinders are controlled by a PLC programmable computer control unit to perform initial adjustment of the up-down adjustment positions on the six upper rollers, six servo motors are controlled to work after the initial adjustment, and then the six lower rollers roll at a low speed;

conveying six sections of two rectangular gray iron rods with the same model diameter of 100 mm, two round iron rods with the diameter of 200 mm and one nodular iron rod (square) with the different model diameters of 300 mm and one special-shaped cast iron with the diameter of 400 mm to a feeding hole; respectively putting the six sectional materials into a tractor for traction;

adjusting the positions of the six upper rollers again until the six upper rollers are attached to the upper surface of the pulled object;

adjusting the six hydraulic cylinders to enable the six upper rollers to carry out pressure test on the pulled object until the pressure is 17400 N.M;

the servo motor is controlled by the PLC unit to accelerate the six lower rolls to a normal preset revolution;

when the pulled objects are completely discharged from the discharge hole, the six lower rollers are decelerated to carry out the next operation.

In the embodiment of this application, adopt six to cooperate the roller set, with different models, six simultaneous tractions of the section bar of different specifications for the traction force greatly increased of whole tractor, it is further, because the hydraulic pressure of last roller set goes up and down to set up, can carry out the upper and lower regulation of height according to the section bar size of difference, can realize that the section bar of different models, different specifications is a plurality of to pull simultaneously, have can be said a tractor serves several purposes, convenient operation, it is wide to pull the scope, efficient, greatly reduced cost and human labor's technological effect.

the tractor mainly comprises 6 pairs of rollers which are parallel to each other, wherein the lower roller is a traction driving roller and is driven by 6 alternating current servo motors through a cycloid pin reducer and a roller chain type coupler, the height of 6 lower driving rollers is fixed, 6 upper rollers are driven by a hydraulic oil cylinder to move up and down and are pressed or separated from dummy bars or cast iron section bars, and the function of friction traction of the rollers and the rollers of the section bars with different bar diameters is realized. When the dummy ingot passes through the rollers, the two pairs of rollers are used for traction when lifting adjustment is carried out on the pair of rollers, so that enough torque (not less than 17000 N.M) required by traction can be ensured. When a product with a smaller specification is produced, only two pairs of rollers are needed to work after passing through the rollers, and four pairs of rollers have a rest, so that 2/3 electricity charges can be saved. In addition, in case of some pair of rollers breaking down, five other pairs of rollers can still continue normal production smaller specification products, play the standby role, very necessary.

In addition, because the six pairs of rollers are adopted, the distance between the rollers is properly increased, the smooth passing of the rollers is ensured during the production of the large rod, and the appearance of the equipment is more high.

The pressing force of the oil cylinder of the tractor can be adjusted according to the actual working condition, and the oil pressure of the system is adjusted to 16 MPa. When producing large section, the pressure is adjusted to be large, otherwise, the pressure can be properly adjusted to be small, but a special person is required to operate.

And finally: the above description is only for the preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A section tractor comprises a frame and is characterized in that a feed inlet is formed in one side of the frame, and a discharge outlet parallel to the feed inlet is formed in the other side of the frame; one side of the rack is provided with a first mounting port group, and the other side of the rack is provided with a second mounting port group parallel to the first mounting port group; a first supporting bearing seat group is fixed on the first mounting port group; a second supporting bearing seat group is fixed on the second mounting port group; a lower roller set is arranged between the first supporting bearing seat group and the second supporting bearing seat group; a servo motor unit is arranged on the outer side of the first mounting port group; the servo motor unit is connected with the lower roller group through a coupling group;

2. The profile tractor according to claim 1, wherein the coupling set comprises a roller chain coupling I, a roller chain coupling II and a roller chain coupling III; the upper roller group comprises an upper roller I, an upper roller II and an upper roller III; the mounting guide post group comprises a first mounting guide post, a second mounting guide post and a third mounting guide post; the upper roller support group comprises an upper roller support I, an upper roller support II and an upper roller support III; the hydraulic cylinder group comprises a first hydraulic cylinder, a second hydraulic cylinder and a third hydraulic cylinder; the upper mounting frame group comprises an upper mounting frame I, an upper mounting frame II and an upper mounting frame III; the guide sleeve group comprises a first guide sleeve, a second guide sleeve and a third guide sleeve.

3. The profile traction machine as claimed in claim 2, wherein the centers of the first upper mounting frame, the second upper mounting frame and the third upper mounting frame are respectively and correspondingly provided with a first hydraulic cylinder, a second hydraulic cylinder and a third hydraulic cylinder; the two sides of the first upper mounting frame, the second upper mounting frame and the third upper mounting frame are respectively provided with a first guide sleeve, a second guide sleeve and a third guide sleeve; a first guide pillar, a second guide pillar and a third guide pillar are arranged in the first guide sleeve, the second guide sleeve and the third guide sleeve; the first mounting guide pillar, the second mounting guide pillar and the third mounting guide pillar are respectively provided with a first upper roll support, a second upper roll support and a third upper roll support; the first upper roll support, the second upper roll support and the third upper roll support are internally and correspondingly provided with a first upper roll, a second upper roll and a third upper roll respectively; the upper roll support I, the upper roll support II and the upper roll support III are fixedly connected with a hydraulic rod I, a hydraulic rod II and a hydraulic rod III which are respectively arranged on the hydraulic cylinder I, the hydraulic cylinder II and the hydraulic cylinder III.

4. A profile tractor as defined in claim 3 wherein said lower set of rolls includes a first lower roll, a second lower roll, and a third lower roll; the servo motor unit comprises a motor base I, a motor base II and a motor base III; the first motor base, the second motor base and the third motor base are respectively provided with a first servo motor, a second servo motor and a third servo motor; the first servo motor, the second servo motor and the third servo motor are provided with a first rotating shaft, a second rotating shaft and a third rotating shaft; the first rotating shaft, the second rotating shaft and the third rotating shaft are respectively connected with the first cycloidal speed reducer, the second cycloidal speed reducer and the third cycloidal speed reducer; the first cycloidal reducer, the second cycloidal reducer and the third cycloidal reducer are respectively connected with the first roller chain coupling, the second roller chain coupling and the third roller chain coupling; the roller chain type coupling I, the roller chain type coupling II and the roller chain type coupling III are respectively connected with the lower roller I, the lower roller II and the lower roller III.

5. The profile traction machine as claimed in claim 4, wherein the first mounting port group comprises a first mounting port, a second mounting port and a third mounting port; the second mounting port group comprises a fourth mounting port, a fifth mounting port and a sixth mounting port; the first mounting port, the second mounting port and the third mounting port are horizontally arranged in parallel with the fourth mounting port, the fifth mounting port and the sixth mounting port respectively;

6. A profile tractor as claimed in any one of claims 1 to 5, wherein said upper set of rollers is arranged parallel to the lower set of rollers; the servo motor unit is connected with a PLC programmable computer control unit of the working state of the controller.

7. A profile tractor as claimed in claim 6, wherein each upper roller of said upper set of rollers has a roller surface provided with an upper annular groove coaxial therewith; each lower roller of the lower roller group is provided with a lower annular groove which is coaxial with the lower roller; each upper roller of the upper roller set is provided with a V-shaped upper annular groove which is coaxial with the upper roller; a V-shaped lower annular groove coaxial with each lower roller of the lower roller set is arranged on the roller surface of each lower roller; and friction ridges are axially arranged on the roller surface of each lower roller of the lower roller set.

8. A traction machine for section bars as claimed in claim 7, wherein said PLC programmable computer control unit comprises revolution detectors provided on the upper and lower roll sets, and temperature detectors provided on the servo motor unit; the device is used for alarming when the revolution number is abnormal or the temperature is abnormal.