CN110548792A - Grouting sleeve shear groove roll forming equipment for steel bar connection - Google Patents
Grouting sleeve shear groove roll forming equipment for steel bar connection Download PDFInfo
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- CN110548792A CN110548792A CN201910831916.4A CN201910831916A CN110548792A CN 110548792 A CN110548792 A CN 110548792A CN 201910831916 A CN201910831916 A CN 201910831916A CN 110548792 A CN110548792 A CN 110548792A
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- reduction box
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- worm gear
- roller
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 64
- 239000010959 steel Substances 0.000 title claims abstract description 64
- 238000007373 indentation Methods 0.000 claims abstract description 49
- 230000009467 reduction Effects 0.000 claims abstract description 48
- 230000005540 biological transmission Effects 0.000 claims abstract description 29
- 238000005096 rolling process Methods 0.000 claims abstract description 27
- 230000007246 mechanism Effects 0.000 claims abstract description 19
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims abstract description 13
- 238000005520 cutting process Methods 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000003014 reinforcing effect Effects 0.000 claims 2
- 238000012545 processing Methods 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 10
- 238000001125 extrusion Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 238000005266 casting Methods 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000012797 qualification Methods 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011440 grout Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D17/00—Forming single grooves in sheet metal or tubular or hollow articles
- B21D17/04—Forming single grooves in sheet metal or tubular or hollow articles by rolling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gears, Cams (AREA)
Abstract
The invention discloses grouting sleeve shear groove rolling forming equipment for connecting reinforcing steel bars, which comprises a base, a rolling rack arranged on the base, a gear reduction box and a main transmission motor, wherein the rolling rack comprises a rack base, two memorial archways and a cross beam, an indentation feeding mechanism is fixed on the cross beam, two supporting rollers and a hob roller are arranged between the two memorial archways, the two supporting rollers and the hob roller form a triangular area for accommodating a steel pipe, the transmission end of each supporting roller is connected with the output end of the gear reduction box through a supporting roller coupler, the input end of the gear reduction box is connected with the main transmission motor through a main transmission motor coupler, a plurality of hobs and indentation depth limiting sleeves are arranged on the hob roller, and the hobs and the indentation depth limiting sleeves are connected with the hob roller through axial keys. One-time forming is ensured, and the processing efficiency is improved.
Description
Technical Field
The invention belongs to the building industry, and particularly relates to grouting sleeve shear groove rolling forming equipment for steel bar connection.
background
The grouting sleeve for connecting the reinforcing steel bars is an important part for connecting the reinforcing steel bars in the field construction process and is a part for connecting the deformed steel bars in adjacent reinforced concrete building components. Along with the development of the assembly type building, the application of the assembly type building is mature, the grouting sleeve solves the problem that the assembly type field assembly reinforcing steel bar is inconvenient to connect, the use of the grouting sleeve enables field assembly construction of the building industry to be possible, the building construction efficiency is greatly improved, and time, labor and site cost are saved.
the core technology of the grouting sleeve manufacturing is to provide sleeve shear groove molding of tensile and compressive stress.
at present, there are two main methods for manufacturing grouting sleeves: casting and machining. Although both of these manufacturing methods are satisfactory for use, they all have common disadvantages: 1. the manufacturing cost is high; 2. the product quality is limited by the manufacturing method, the product qualification rate is not high, and particularly the product qualification rate of the casting method is low.
The patent with the application number of CN201510283735.4 discloses an automatic forming machine for a full grouting sleeve, which comprises a rack, a motor, a speed reducer, a rolling mechanism and a feeding mechanism, wherein the motor, the speed reducer, the rolling mechanism and the feeding mechanism are arranged on the rack; the motor, the hydraulic cylinder and the feeding mechanism are all operated under the control of a control device. However, the device is not easy to be formed at one time during roll forming, and the steel pipe is easy to deform in the forming process, so that the processing efficiency is low, and the application range is narrow.
Disclosure of Invention
The invention aims to provide a roll forming device for a shear groove of a grouting sleeve for connecting reinforcing steel bars, aiming at the problems in the prior art.
In order to achieve the purpose, the invention adopts the technical scheme that:
A grouting sleeve shear groove roll forming device for connecting reinforcing steel bars comprises a base, a roll rack arranged on the base, a gear reduction box and a main transmission motor, wherein the roll rack comprises a rack base, two memorial archways and a cross beam, one end of each memorial archway is fixed on the rack base, the other end of each memorial archway is fixed with the cross beam, an indentation feeding mechanism is fixed on the cross beam, two supporting rollers and a hob roller are arranged between the two memorial archways and are fixed between the two memorial archways through supporting roller bearing seats, two ends of the hob roller are connected with the output end of the indentation feeding mechanism through the hob roller bearing seats, the two supporting rollers and the hob roller form a triangular area for accommodating steel pipes, the transmission ends of the supporting rollers are connected with the output end of the gear reduction box through supporting roller couplers, the input end of the gear reduction box is connected with the main transmission motor, the supporting roll rotates to drive the hobbing cutter roll to rotate passively, a plurality of hobbing cutters and indentation depth limiting sleeves are arranged on the hobbing cutter roll, and the hobbing cutters and the indentation depth limiting sleeves are connected with the hobbing cutter roll through axial keys.
Through setting up hobbing cutter and indentation degree of depth stop collar at the coaxial interval of axial on the hobbing cutter roller, indentation feed mechanism drive hobbing cutter roller, a plurality of hobbing cutters extrude a plurality of parts of steel pipe surface simultaneously, form a plurality of local sunken plastic deformation on the steel pipe surface, under this condition, main rotation motor drives the backing roll and rotates, backing roll drive steel pipe rotates, thereby the steel pipe rotates and drives the hobbing cutter roller and rotate, let this kind of local extrusion plastic deformation form in the circumferencial direction in succession, the sunken deflection on the circumferencial direction is along with the radial feed motion periodicity of hobbing cutter roller slowly deepens, until the surface and the indentation degree of depth stop collar contact of steel pipe non-deformation, the roll extrusion is accomplished. The steel pipe outer surface forms a plurality of concave circumference plastic deformations, simultaneously forms convex circumference plastic deformations in the steel pipe, forms a shear force groove required by the sleeve between two bulges, and because the hobbing cutter and the indentation depth limiting sleeve are connected with the hobbing cutter roller key, the rotary creeping between the hobbing cutter and the indentation depth limiting sleeve is prevented, the arranged indentation depth limiting sleeve not only can have the indentation depth limiting function, but also can roll the steel pipe with two supporting rollers simultaneously, has a correction function to the steel pipe, and prevents the steel pipe from deforming in the extrusion process; the two supporting rollers and the hobbing roller are arranged in a triangular shape, the steel pipe is arranged in the center of the triangle, and the triangular arrangement ensures the motion stability of the steel pipe when the steel pipe is rolled and ensures that the rolled steel pipe is not thrown out at high rotating speed.
Furthermore, the indentation feeding mechanism comprises two worm wheel screw lifters, the output ends of the two worm wheel screw lifters are respectively connected with the hob roller bearing seats at the two ends of the hob roller, the input ends of the two worm wheel screw lifters are respectively connected with the output end of the double-output-shaft bevel gear reduction box through two couplers, and the input end of the double-output-shaft bevel gear reduction box is connected with the feeding motor.
Furthermore, the gear reduction box is a double-output-shaft gear box or a single-output-shaft gear box with the same direction and the same speed.
In the case of a double-output gearbox, the two support rollers are driven simultaneously, and in the case of a single-output gearbox, either one of the two support rollers and only one of the support rollers are driven.
Furthermore, the cutter head of the hob is a large-circular-angle smooth curve section, and the outer diameter of the hob is equal to the sum of the outer diameter of the indentation depth limiting sleeve and twice the indentation depth. When the indentation depth of any hob reaches, the indentation depth limiting sleeve carries out mechanical limiting, each indentation is guaranteed to be accurately formed at one time, and the depths are consistent, namely all shear grooves required by the sleeve are accurately formed at one time.
Furthermore, the surface of the support roller is provided with anti-slip lines, and the surface hardness is greater than HRC 60. In practical application, the surface of the support roll is in full line contact with the steel pipe within the length range, and sufficient friction between the support roll and the steel pipe is guaranteed.
Furthermore, the worm gear lead screw lifter consists of worm gear transmission and lead screw nut transmission, the worm gear transmission comprises a worm gear reduction box body fixed on the cross beam, a lead screw penetrating through the worm gear reduction box body and having one end fixed on the top of the hob roller bearing seat, and a worm gear in the worm gear reduction box body, two ends of the worm gear are fixed through worm gear bearings, worm gear end covers are fixed on the worm gear reduction box body, and the lead screw is screwed with inner hole threads of the worm gear; the external tooth of worm wheel and the epaxial tooth meshing of worm in the worm gear reduction box, the both ends of worm axle are fixed through the worm bearing, and the worm end cover is installed on the worm gear reduction box, the screw-nut transmission includes the lead screw, the screw constitutes screw drive with the hole screw thread of worm wheel.
The worm wheel and the worm shaft form a high-precision worm wheel and worm pair to realize transmission, and the transmission of the worm wheel and the worm and the screw rod nut has a self-locking function; when the worm drives the worm wheel to rotate, the worm drives the screw rod which forms a thread pair with the worm wheel to do lifting motion, the end part of the screw rod is fixed at the top of the hob roller bearing seat through the flange cover, and when the screw rod moves downwards, the hob roller bearing seat and the whole hob roller are driven to move downwards, so that feeding of the hob roller is realized.
furthermore, the position of any axial section of the steel pipe is not changed before rolling, in the rolling process and after rolling; and the steel pipe can axially and integrally pass through the triangular area from any side along the axis of the rolled position. The design ensures that the steel pipe is not blocked by any part in the rolling process, is not limited by the length of the steel pipe, and is easy to realize full-automatic production.
The rolled steel pipe is placed between two supporting rollers, a feeding motor with an encoder of the indentation feeding mechanism is started to sequentially drive a double-output-shaft bevel gear reduction box and a worm screw rod lifter, the hob roller is finally pressed downwards to press the steel pipe, the supporting rollers synchronously rotate in the same direction under the driving of a main transmission motor, the steel pipe rotates along with the supporting rollers until the pressed steel pipe is rolled and formed at the position of a hob along the circumferential direction, an indentation depth limiting sleeve on the hob roller is pressed with the steel pipe, the encoder on the feeding motor sends an in-place signal at the moment, and rolling is finished.
Compared with the prior art, the invention has the beneficial effects that:
1. Set up indentation degree of depth stop collar and hobbing cutter through the key-type connection interval on the hobbing cutter roller, in the roll extrusion, indentation degree of depth stop collar can carry out the degree of depth spacing, and simultaneously, when the hobbing cutter reached required degree of depth, indentation degree of depth stop collar extrudeed the steel pipe, acted on simultaneously with the backing roll, played the corrective action, prevented steel pipe surface deformation.
2. The feeding motor with the encoder drives the double-output-shaft bevel gear reduction box to output torque, the worm in the worm gear screw rod lifter is driven to rotate, then the worm drives the worm gear to rotate, the screw rod is fixed around the center shaft of the screw rod, finally, the rotation of the worm gear can drive the screw rod to drive the hob roller to integrally move up and down, the radial feeding of the steel pipe is provided, and the stroke range of grouting sleeves with various diameters can be met.
3. Before rolling, in the rolling process and after rolling, the position of any axial section of the rolled steel pipe is not changed; the rolled steel pipe can axially and integrally pass through the triangular area from any side along the axis of the rolled position, is not blocked by any part and is not limited by the length of the steel pipe, and full-automatic production is easy to realize.
4. Compared with the prior equipment, the production efficiency is improved by 20 times or more at least because the plurality of shear grooves are formed by rolling at one time, in addition, the equipment structure is simpler, the investment cost is low, the energy consumption is low, the production quality is easier to control, the maintenance period is prolonged, and the equipment reliability is greatly improved.
Drawings
FIG. 1 is a front view of a structure of a shear groove roll forming device of a grouting sleeve for connecting reinforcing steel bars according to the present invention;
FIG. 2 is a structural plan view of a roll forming device for a shear groove of a grouting sleeve for connecting reinforcing steel bars according to the present invention;
FIG. 3 is a side view of the arrangement of the support rolls, the hobbing rolls and the rolled steel pipe in FIG. 1, wherein A represents the direction of rotation;
FIG. 4 is a schematic view of a steel pipe of embodiment 1 of the present invention before rolling;
FIG. 5 is a schematic view of a rolled steel pipe according to embodiment 1 of the present invention;
fig. 6 is a schematic view of a worm wheel structure of a worm wheel screw elevator according to embodiment 1 of the present invention;
Fig. 7 is a schematic view of a worm shaft structure of a worm-screw elevator according to embodiment 1 of the present invention;
Fig. 8 is a schematic structural view of a hob, a hob roller and an indentation depth limit sleeve in embodiment 2 of the present invention.
In the figure: 1. a base; 2. a rolling frame; 201. a frame base; 202. a memorial archway; 203. a cross beam; 3. a support roller; 4. a hobbing cutter roller; 5. hobbing cutters; 6. an indentation depth limiting sleeve; 7. an indentation feed mechanism; 701. a double output shaft bevel gear reduction box; 702. a worm screw hoist; 7021. a worm gear reduction box body; 7022. a worm shaft; 7023. a worm gear; 7024. a worm gear bearing; 7025. a worm gear end cover; 7026. a worm bearing; 7027. a worm end cap 703, a coupling; 704. a feed motor; 705. a screw rod; 8. a gear reduction box; 9. a support roller coupler; 10. a main drive motor; 11. a main drive motor coupling; 12. and (5) steel pipes.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1:
as shown in fig. 1-5, a grouting sleeve shear groove rolling forming device for connecting reinforcing steel bars comprises a base 1, a rolling rack 2 arranged on the base 1, a gear reduction box 8 and a main transmission motor 10, wherein the rolling rack 2 comprises a rack base 201, two memorial archways 202 and a cross beam 203, and a slag discharge port can be formed below the rack base 201 for discharging slag conveniently; one end of each of the two memorial archways 202 is fixed on the frame base 201, the other end of each of the memorial archways 202 is fixed with the beam 203, the indentation feeding mechanism 7 is fixed on the beam 203, two supporting rollers 3 and two hob rollers 4 are arranged between the two memorial archways 202 through supporting roller bearing seats, two ends of each hob roller 4 are connected with the output end of the indentation feeding mechanism 7 through the hob roller bearing seats, the two supporting rollers 3 and the hob roller 4 form a triangular area for accommodating a steel pipe 12, the transmission end of each supporting roller 3 is connected with the output end of the gear reduction box 8 through a supporting roller coupling 9, the input end of the gear reduction box 8 is connected with the main transmission motor 10 through a main transmission motor coupling 11, the supporting rollers 3 rotate to drive the hob rollers 4 to rotate, and the gear reduction box 8 is a double-output shaft gear box or a single-output shaft gear box with the same direction, if the gearbox is a double-output-shaft gearbox, the two supporting rollers 3 are driven simultaneously, and if the gearbox is a single-output-shaft gearbox, any one of the two supporting rollers 3 and only one supporting roller 3 are driven; the indentation feeding mechanism 7 comprises two worm screw lifters 702, the output ends of the two worm screw lifters are respectively connected with hob roller bearing seats at two ends of a hob roller, the input ends of the two worm screw lifters 702 are respectively connected with the output end of a double-output-shaft bevel gear reduction box 701 through two couplers 703, and the input end of the double-output-shaft bevel gear reduction box 703 is connected with a feeding motor 704. The worm gear screw rod lifter 702 and the double-output-shaft bevel gear reduction box 703 are both arranged on the rolling machine frame 2, and the whole hobbing cutter roller 4 freely rotates in the circumferential direction without restriction. Be equipped with a plurality of hobbing cutters 5 and indentation degree of depth stop collar 6 on the hobbing cutter roller 4, it is a plurality of hobbing cutter 5 and indentation degree of depth stop collar 6 are connected with hobbing cutter roller 4 through the axial key, can adjust the axial interval between hobbing cutter 5 and the indentation degree of depth stop collar 6 according to different demand parameters, realize that all shear force grooves of grout sleeve one shot forming.
the surface of the support roller 3 is provided with anti-skid grains, the surface hardness is higher than HRC60, and in practical application, the surface of the support roller 3 is in full line contact with the steel pipe within the length range, so that sufficient friction between the support roller 3 and the steel pipe is ensured.
As shown in fig. 6-7, the worm screw elevator 702 consists of a worm gear drive and a screw nut drive;
The worm gear comprises a worm gear reduction box 7021, a worm shaft 7022, a worm gear 7023, a worm gear bearing 7024, a worm gear end cover 7025, a worm bearing 7026 and a worm end cover 7027;
The worm gear reduction box 7021 is fixed on the beam 203;
Worm wheel bearings 7024 are respectively arranged at two ends of a worm wheel 7023, the whole worm wheel bearing is placed in a worm wheel and worm reduction box 7021, and a worm wheel end cover 7025 is arranged on the worm wheel and worm reduction box 7021.
the worm bearings 7026 are respectively installed at both ends of the worm shaft 7022, and are entirely placed in the worm gear reduction case 7021, and the two worm end caps 7027 are installed on the worm gear reduction case 7021.
The worm gear 7023 and the worm shaft 7022 form a high-precision worm-gear pair to realize transmission.
The worm gear 7023 is a special worm gear with female threads and upper and lower worm gear bearing mounting locations.
the external teeth of the worm gear 7023 are meshed with the teeth on the worm shaft 7022, the internal hole thread of the worm gear 7023 is screwed with the screw rod 705, and the worm gear and the screw rod nut have self-locking functions.
The screw rod nut transmission is screw transmission formed by inner hole threads of a screw rod 705 and a worm gear 7023, the worm gear 7023 is fixed in a worm gear reduction box 7021, when a worm shaft 7022 drives the worm gear 7023 to rotate, the worm gear 7023 drives the screw rod 705 which forms a thread pair with the worm gear to do lifting motion, a flange cover at the end part of the screw rod 705 is fixed at the top of a hob roller bearing seat, and when the screw rod 705 moves downwards, the hob roller bearing seat and the whole hob roller 4 are driven to move downwards, so that the feeding of the hob roller 4 is realized.
Utilize a plurality of hobs 5 on same root hobbing cutter roller 4 to extrude a plurality of parts of steel pipe 12 surface simultaneously, form a plurality of local sunken plastic deformation on steel pipe 12 surface, under this condition, backing roll 3 drive steel pipe 12 rotates, steel pipe 12 drive hobbing cutter 5 rotates, let this kind of local extrusion plastic deformation form in the circumferencial direction continuously, sunken deflection in the circumferencial direction is along with the radial feed motion of hobbing cutter roller 4 periodic slow deepening, until the surface and the indentation degree of depth stop collar 6 contact of steel pipe 12 non-deformation, the roll extrusion is accomplished. Forming a plurality of concave circumferential plastic deformations on the outer surface of the steel pipe 12, forming a convex circumferential plastic deformation in the steel pipe 12, and forming a shear groove required by a sleeve between the two bulges; before rolling, in the rolling process and after rolling, the position of any axial section of the steel pipe 12 is not changed; and the steel pipe 12 can be axially and integrally passed through the triangular region from either side along the axis of the position where it is rolled. The design ensures that the rolling process of the steel pipe 12 is not blocked by any part and is not limited by the length of the steel pipe, and the full-automatic production is easy to realize.
the working principle is as follows: the rolled steel pipe 12 is placed between two supporting rollers 3, a feeding motor 704 with an encoder of an indentation feeding mechanism 7 is started to sequentially drive a double-output-shaft bevel gear reduction box 701 and a worm gear lead screw lifter 702, the double-output-shaft bevel gear reduction box 701 is driven to output torque through the feeding motor 704 with the encoder to drive a worm shaft 7022 in the worm gear lead screw lifter 702 to rotate, then the worm shaft 7022 drives a worm gear 7023 to rotate, the lead screw 705 is fixed around the central axis of the lead screw 705, finally, the lead screw 705 drives a hob roller 4 to downwards press the steel pipe by the rotation of the worm gear 7023, the supporting rollers 3 synchronously rotate in the same direction under the driving of a main transmission motor 10, the steel pipe 12 rotates along with the supporting rollers 3 until the pressed steel pipe 12 is rolled and formed at the position of a hob 5 along the circumferential direction, an indentation depth limiting sleeve 6 on the hob roller 4 is pressed with the steel pipe 12, and then the, and (5) forming a sleeve after rolling.
example 2:
As shown in fig. 8, the difference between this embodiment and embodiment 1 is that the cutting head of the hob 5 is a smooth curved section with a large round angle, and the outer diameter of the hob 5 is equal to the sum of the outer diameter of the indentation depth limiting sleeve 6 and twice the indentation depth. When the indentation depth of any hob 5 reaches, the indentation depth limiting sleeve 6 carries out mechanical limiting, and each indentation is guaranteed to be accurately formed at one time, and the depths are consistent, namely all shear grooves required by the sleeve are accurately formed at one time.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. A grouting sleeve shear groove roll forming device for connecting reinforcing steel bars is characterized by comprising a base, a roll rack arranged on the base, a gear reduction box and a main transmission motor, wherein the roll rack comprises a rack base, two memorial archways and a cross beam, one end of each memorial archway is fixed on the rack base, the other end of each memorial archway is fixed with the cross beam, an indentation feeding mechanism is fixed on the cross beam, two supporting rollers and a hob roller are arranged between the two memorial archways and fixed between the two memorial archways through supporting roller bearing seats, two ends of the hob roller are connected with the output end of the indentation feeding mechanism through the hob roller bearing seats, the two supporting rollers and the hob roller form a triangular area for accommodating steel pipes, the transmission ends of the supporting rollers are connected with the output end of the gear reduction box through supporting roller couplers, the input end of the gear reduction box is connected with the main transmission motor through a main, the rotary cutting device is characterized in that the supporting roll rotates to drive the hobbing cutter roll to rotate passively, a plurality of hobbing cutters and indentation depth limiting sleeves are arranged on the hobbing cutter roll, and the hobbing cutters and the indentation depth limiting sleeves are all in key connection with the hobbing cutter roll.
2. The grouting sleeve shear groove roll forming device for connecting reinforcing steel bars as claimed in claim 1, wherein the indentation feeding mechanism comprises two worm screw lifters, the output ends of the two worm screw lifters are respectively connected with the hob roller bearing seats at both ends of the hob roller, the input ends of the two worm screw lifters are respectively connected with the output end of the double-output-shaft bevel gear reduction box through two couplers, and the input end of the double-output-shaft bevel gear reduction box is connected with the feeding motor.
3. The apparatus as claimed in claim 1, wherein the gear reduction box connected to the main driving motor is a double output shaft gear box or a single output shaft gear box of the same direction and the same speed.
4. The roll forming apparatus of a shear groove of a grouting sleeve for reinforcing steel bar connection according to claim 1, wherein the cutter head of the hob is a smooth curved section with a large round angle, and the outer diameter of the hob is equal to the sum of the outer diameter of the indentation depth stop collar and twice the indentation depth.
5. The roll forming apparatus of a shear groove of a grouting sleeve for reinforcing bar connection as claimed in claim 1, wherein the surface of the supporting roller is provided with anti-slip patterns and the surface hardness is higher than HRC 60.
6. The grouting sleeve shear groove roll forming equipment for connecting reinforcing steel bars as claimed in claim 2, wherein the worm gear lead screw lifter consists of a worm gear and worm screw transmission and a lead screw nut transmission, the worm gear and worm screw transmission comprises a worm gear and worm screw reduction box fixed on a cross beam, a lead screw penetrating through the worm gear and worm screw reduction box and having one end fixed on the top of a hob roller bearing seat, and a worm gear in the worm gear and worm screw reduction box, two ends of the worm gear are fixed through worm gear bearings, a worm gear end cover is fixed on the worm gear and worm screw reduction box, and the lead screw is screwed with inner hole threads of the worm gear; the external tooth of worm wheel and the epaxial tooth meshing of worm in the worm gear reduction box, the both ends of worm axle are fixed through the worm bearing, and two worm end covers are installed on the worm gear reduction box, the screw-nut transmission includes the lead screw, the screw constitutes screw drive with the hole screw thread of worm wheel.
7. the roll forming apparatus of a shear groove of a grouting sleeve for reinforcing bar connection according to claim 1, wherein the position of any axial section of the steel pipe is not changed before, during and after rolling; and the steel pipe can axially and integrally pass through the triangular area from any side along the axis of the rolled position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910831916.4A CN110548792A (en) | 2019-09-04 | 2019-09-04 | Grouting sleeve shear groove roll forming equipment for steel bar connection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910831916.4A CN110548792A (en) | 2019-09-04 | 2019-09-04 | Grouting sleeve shear groove roll forming equipment for steel bar connection |
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| Publication Number | Publication Date |
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| CN110548792A true CN110548792A (en) | 2019-12-10 |
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| CN201910831916.4A Pending CN110548792A (en) | 2019-09-04 | 2019-09-04 | Grouting sleeve shear groove roll forming equipment for steel bar connection |
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| CN210754543U (en) * | 2019-09-04 | 2020-06-16 | 武汉源锦卓远机械有限公司 | Grouting sleeve shear groove roll forming equipment for steel bar connection |
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