CN112058945B

CN112058945B - Pyramid shell type coiler mandrel

Info

Publication number: CN112058945B
Application number: CN202010831390.2A
Authority: CN
Inventors: 余峰; 陈勇彪; 邓立群; 胡世标; 吴久福; 谭桦; 徐天佑
Original assignee: Hunan Kemeida Heavy Industry Co ltd
Current assignee: Hunan Kemeida Heavy Industry Co ltd
Priority date: 2020-08-18
Filing date: 2020-08-18
Publication date: 2022-09-20
Anticipated expiration: 2040-08-18
Also published as: CN112058945A

Abstract

The invention relates to a pyramid sleeve type coiler mandrel, which comprises a conductive sliding ring, wherein the conductive sliding ring is arranged at the tail part of a speed reducing motor, the right end of the speed reducing motor is connected with a flange and fixed on a main shaft, an output shaft of the speed reducing motor is connected with a lead screw through a coupler, the left end and the right end of the lead screw are placed in the main shaft through bearings, the bearings are fixed through locking nuts, a transmission nut is arranged on the lead screw, four protruding positioning blocks are arranged on the transmission nut, the four positioning blocks are positioned in internal grooves in four directions of the main shaft, the four positioning blocks are connected and fastened with a pyramid sleeve through screws, and the pyramid sleeve is in contact with a sector plate and a jaw sector plate through inclined planes. The invention adopts the conductive slip ring and the speed reducing motor to drive the expansion and the reduction of the coiling equipment, and other special equipment is not required to be configured; the structure of the screw rod and the transmission nut is adopted, so that the structure is simple, the processing is easy, and the cost is low; the mechanical jaw device with a brand-new structure is adopted for carrying out clamping operation, and a power source does not need to be additionally configured.

Description

Pyramid shell type coiler mandrel

Technical Field

The invention relates to the technical field of strip steel coiling, in particular to a winding drum of a pyramid shell type coiler.

Background

The drum of the pyramid sleeve coiler is mainly used for the machine set outlet sections of cold rolling main rolling lines or strips, such as pickling, galvanizing, annealing, shearing, coating and the like, and mainly comprises a sector plate, a jaw sector plate, a main shaft, a pull rod, a rotary oil cylinder, a hydraulic jaw device and the like. However, the existing pyramid shell type coiler mandrel mainly has the following disadvantages:

one, the reel harmomegathus uses harmomegathus hydro-cylinder + rotary joint configuration, concrete structure has harmomegathus hydro-cylinder + rotary joint at the main shaft left end through flange joint, harmomegathus hydro-cylinder piston rod passes through the clamp and is connected with the pull rod, hydro-cylinder action piston rod promotes the pull rod at copper sheathing round trip movement, the hydraulic drive mode needs the on-the-spot large-scale hydraulic pressure station of arranging and need dispose loaded down with trivial details oil circuit, hydraulic oil exists simultaneously and reveals the risk, need regularly change the sealing member, the site environment pollutes easily, and the manufacturing degree of difficulty is big, the total manufacturing cost is big, the later maintenance is loaded down with trivial details, the expense is too high.

Two, because the piston rod drives the pull rod axial and stretches out and draws back when the harmomegathus hydro-cylinder is worked, so the connection of hydraulic cylinder piston rod and pull rod adopts clamp axial tight fit, piston rod and pull rod axiality required precision are high, along with the wearing and tearing of copper sheathing, spare part precision descends, pull rod and piston rod axiality descend, cause both decentraction easily, the atress changes, the during operation causes pull rod or piston rod fracture easily, later maintenance also need change and restore copper sheathing pull rod etc. cause certain trouble for the plant maintenance.

And thirdly, when the winding drum of the conventional pyramid cover coiler performs coiling operation, the coiler without a jaw device can only adopt an external belt wrapper to realize coiling, so that the equipment cost is high, and the additional labor and maintenance cost is required to be increased.

An effective solution to the problems in the related art has not been proposed yet.

Disclosure of Invention

Aiming at the technical problems in the related art, the invention provides a winding drum of a pyramid shell type coiler, which not only has a simple structure of the pyramid shell type winding drum, but also can solve the following problems and greatly reduce the cost.

Firstly, the problems that the hydraulic expansion and contraction oil cylinder is high in cost, difficult to maintain and easy to leak are solved.

And secondly, the problems of breakage of a piston rod or a pull rod of the oil cylinder and the like are solved.

And thirdly, the problem that the coiling equipment needs external auxiliary equipment to carry out coiling operation is solved.

In order to achieve the technical purpose, the technical scheme of the invention is realized as follows:

the utility model provides a pyramid shell type coiler mandrel, includes electrically conductive sliding ring, electrically conductive sliding ring installs in the gear motor afterbody, the gear motor right-hand member is fixed on the main shaft with flange joint, the gear motor output shaft passes through the coupling joint with the lead screw, both ends pass through the bearing about the lead screw place in the main shaft, the bearing passes through lock nut and fixes, be provided with drive nut on the lead screw, the last four convex locating pieces that are provided with of drive nut, four locating pieces are located in the inside groove in four positions of main shaft, four locating pieces pass through the screw connection with the pyramid cover and fasten, through the inclined plane contact between pyramid cover and sector plate and the sector plate of keeping silent.

Furthermore, two ends of one surface of the pyramid sleeve are respectively provided with a clamping device, and each clamping device comprises a fixed block, a guide rod, a traction block and a spring.

Furthermore, the traction block on the clamping device is connected with the transverse moving jaw strip through a waist hole on the jaw sector plate, a guide waist hole is formed in the middle of the transverse moving jaw strip, and the transverse moving jaw strip is provided with an inclined surface and is in contact with the clamping jaw strip through the inclined surface.

Furthermore, reset devices are installed at two ends of the clamping jaw strip and comprise springs and locking screw nuts.

Furthermore, a copper sliding plate is arranged on the inner groove of the main shaft, and the positioning block is in contact with the copper sliding plate.

Compared with the prior art, the invention has the beneficial effects that:

the invention adopts the conductive slip ring and the speed reducing motor to drive the expansion and the reduction of the coiling equipment, does not need to be configured with other special equipment, does not need to worry about leakage, does not need to replace sealing parts, does not need to arrange a large number of pipelines, has simple part processing and manufacturing, simultaneously has the motor with the brake and the overload protection, and can effectively protect the stability of the equipment.

The invention adopts the structure of the screw rod and the transmission nut, and the screw rod transmission has the advantages that: the structure is simple, the processing is easy, the cost is low, the transmission axial force is large, the self-locking is realized, the positioning precision is high, the motor output shaft is connected with the screw rod through the coupler, the two ends of the screw rod are positioned through the bearings, the rigidity is high, the problem of breakage of the pull rod or the piston rod is solved, meanwhile, wearing parts such as copper sleeves do not need to be additionally configured, and the cost is reduced.

The mechanical jaw device with a brand new structure is adopted for carrying out clamping operation, no additional power source is needed, and the clamping device can be used satisfactorily by utilizing the power source on the existing equipment.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic structural view of a new structural mechanical jaw pyramid cover coiler mandrel according to the present invention;

FIG. 2 is an enlarged view taken at a in FIG. 1;

FIG. 3 is an enlarged view at b in FIG. 1;

FIG. 4 is a partial top view of FIG. 1;

FIG. 5 is a schematic view of the internal structure of FIG. 1;

FIG. 6 is a cross-sectional view of FIG. 1;

fig. 7 and 8 are partial enlarged views of fig. 6.

In the figure: 1. the device comprises a conductive slip ring, 2, a speed reducing motor, 3, a flange, 4, a coupler, 5, a locking nut, 6, a bearing, 7, a screw rod, 8, a main shaft, 9, a pyramid sleeve, 10, a clamping device, 11, a jaw sector plate, 12, a sector plate, 13, a transmission nut, 14, a baffle ring, 15, a support component, 16, a reset device, 17, a clamping jaw strip, 18, a transverse jaw strip, 19, a guide slider, 20 and a copper sliding plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present invention.

As shown in fig. 1-6, the present invention provides a winding drum of a pyramid shell type coiler, which comprises a conductive slip ring 1, the conductive slip ring is installed at the tail of a speed reducing motor 2, the conductive slip ring 1 is used for connecting a power supply and transmitting electric energy to the speed reducing motor 2 through a slip ring, so as to realize the rotation of the speed reducing motor 2, the conductive slip ring 1 can prevent the circuit of a rotating device from winding, the speed reducing motor 2 is connected with a main shaft 8 into a whole through a flange 3, an output shaft of the speed reducing motor 2 is connected with a lead screw 7 through a coupler 4, the left and right ends of the lead screw 7 are placed in the main shaft 8 through bearings 6, the two ends of the lead screw 7 are fixed with the bearings 6 through a locking nut 5, a transmission nut 13 is arranged on the lead screw 7, four convex positioning blocks are arranged on the transmission nut 13, the four positioning blocks are positioned, guided and positioned through a copper sliding plate 20 placed in an inner groove of the main shaft 8, and the four positioning blocks are connected and fastened with a pyramid sleeve 9 through screws, the pyramid cover 9 is contacted with the jaw sector plate 11 and three sector plates 12 through inclined planes, two ends of the jaw sector plate 11 and the other three sector plates 12 are axially limited through the spindle 8 and the baffle ring 14, two ends of one surface of the pyramid cover are respectively provided with a clamping device 10, each clamping device 10 comprises a fixed block, a guide rod, a traction block and a spring, the fixed blocks are fixed on the pyramid cover 9, two ends of the guide rod are placed in the fixed blocks, the traction block is sleeved on the guide rod, the springs are sleeved on the guide rod and located between the traction block and the fixed blocks, and the springs inside the clamping devices 10 mainly have the function of resetting the traction block. The traction block of the clamping device 10 is provided with a boss which is connected with a transverse jaw strip 18 through two corresponding waist holes on a jaw sector plate 11, the transverse jaw strip 18 and the jaw sector plate 11 are positioned and guided through a guide slider 19, so that the transverse jaw strip 18 can only axially move, the transverse jaw strip 18 is contacted with a clamping jaw strip 17 through an inclined plane, two ends of the clamping jaw strip 17 are provided with a reset device 16, the reset device 16 comprises a locking screw nut and a spring, the locking screw is fixed on the jaw sector plate 11 through threads, the spring is sleeved on the locking screw, the spring is integrally placed in inner holes at two sides of the clamping jaw strip 17, the top of the locking screw is fixed with the locking nut, so that the clamping jaw strip 17 can only axially move along the locking screw, and the reset device 16 is used for resetting the clamping jaw strip 17 after working.

The working principle of the invention is as follows: before the coiling operation of the winding drum, the winding drum is in a small circle state, firstly, the speed reducing motor 2 is started, the motor output shaft drives the screw rod 7 to rotate, the transmission nut 13 on the screw rod 7 converts the rotary motion into linear axial motion due to positioning and guiding, so that the pyramid sleeve 9 is driven to axially move, the pyramid sleeve 9 pushes the jaw sector plate 11 and the sector plate 12 to radially move through the inclined plane after axially moving, so that the expansion is realized, otherwise, when the speed reducing motor 2 rotates in the opposite direction, the winding drum is reduced, the structure adopts electric drive, the energy is clean, the use is convenient, the screw rod transmission structure is stable, the service life is prolonged, and the later maintenance cost is low.

When the winding drum clamps a steel strip, the winding drum is in a contracted state, the jaw of the winding drum is in a fully opened state (figure 8), the winding drum is expanded due to the axial movement of the pyramid sleeve 9, the clamping device 10 is driven to move axially, the boss on the clamping device 10 drives the transverse moving jaw strip 18 to move axially, the transverse moving jaw strip 18 is in inclined surface contact with the clamping jaw strip 17, the clamping jaw strip 17 moves radially through the inclined surface when the transverse moving jaw strip moves axially, and therefore the clamping of the steel strip is achieved (figure 7), the clamping device 10 is driven to move reversely when the pyramid sleeve 9 moves reversely, the transverse moving jaw strip 18 also moves reversely, the clamping jaw strip 17 achieves reverse movement through the resetting device 16, and therefore the steel strip is loosened.

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.

Claims

1. The utility model provides a pyramid shell type coiler mandrel which characterized in that: the electric transmission device comprises a conductive sliding ring (1), the conductive sliding ring (1) is installed at the tail of a speed reducing motor (2), the right end of the speed reducing motor (2) is connected with a flange (3) and fixed on a main shaft (8), an output shaft of the speed reducing motor (2) is connected with a lead screw (7) through a coupler (4), the left end and the right end of the lead screw (7) are placed in the main shaft (8) through bearings (6), the bearings (6) are fixed through locking nuts (5), a transmission nut (13) is arranged on the lead screw (7), four convex positioning blocks are arranged on the transmission nut (13), the four positioning blocks are positioned in inner grooves in four directions of the main shaft (8), the four positioning blocks are connected and fastened with a pyramid sleeve (9) through screws, and the pyramid sleeve (9) is in inclined plane contact with a sector plate (12) and a jaw sector plate (11), the utility model discloses a clamping device, including spindle (8), pyramid cover (9), clamping device (10) are respectively installed at the both ends that have a face, clamping device includes fixed block, guide bar, traction block and spring, on clamping device (10) the traction block passes through a waist hole on keeping silent sector plate (11) is connected with sideslip jaw strip (18), it has a direction waist hole to open in the middle of sideslip jaw strip (18), have the inclined plane on sideslip jaw strip (18), and pass through the inclined plane contacts with pressing from both sides jaw strip (17), be provided with copper slide (20) on spindle (8) the inside groove, the locating piece with copper slide (20) contact.

2. A pyramid garter mandrel as claimed in claim 1, wherein: reset devices (16) are installed at two ends of the clamping jaw strip (17), and each reset device (16) comprises a spring and a locking screw nut.