CN115228556A - Split crusher roller and quick disassembling and assembling method thereof - Google Patents
Split crusher roller and quick disassembling and assembling method thereof Download PDFInfo
- Publication number
- CN115228556A CN115228556A CN202210890440.3A CN202210890440A CN115228556A CN 115228556 A CN115228556 A CN 115228556A CN 202210890440 A CN202210890440 A CN 202210890440A CN 115228556 A CN115228556 A CN 115228556A
- Authority
- CN
- China
- Prior art keywords
- sleeve
- connecting disc
- shaft head
- roller
- bearing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C4/00—Crushing or disintegrating by roller mills
- B02C4/28—Details
- B02C4/30—Shape or construction of rollers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Crushing And Grinding (AREA)
Abstract
The invention discloses a split crusher roller and a quick dismounting and mounting method thereof.A roller end connecting disc is respectively embedded and fixed in the centers of two ends of a roller body, and a connecting disc counter bore is arranged in the center of the outer end surface of the roller end connecting disc; the root of the shaft head is provided with a shaft head flange, the inner end face of the shaft head flange is provided with a shaft head flange convex ring, the shaft head flange convex ring is embedded into a counter bore of the connecting plate, and the inner end face of the shaft head flange is abutted against the outer end face of the roller end connecting plate. Each torque pin on the circumference of the shaft head flange is correspondingly inserted into a connecting disc pin hole of the connecting disc at the roller end; the middle section of the counter bore of the connecting disc is provided with a large-bore section of the connecting disc and a taper hole, and a plurality of steel balls are embedded in the large-bore section and the taper hole; a plurality of flange convex ring round holes for the steel balls to pass through are uniformly arranged on the circumference of the middle section of the flange convex ring of the shaft head. The inner cavity of the flange convex ring of the shaft head is provided with a conical push disc, the center of the conical push disc is screwed at the inner end of a sleeve, and the sleeve is positioned in the central hole of the shaft head. The roller only needs to be replaced, and relevant parts are not required to be disassembled, so that the downtime is greatly shortened.
Description
Technical Field
The invention relates to a toothed roller type crusher, in particular to a split type crusher roller, and belongs to the technical field of toothed roller type crushers.
Background
The toothed roller type crusher shears and crushes materials through the interaction of a pair of rollers with teeth on the surfaces, after the toothed roller type crusher is used for a period of time, the teeth on the surfaces of the rollers are worn and cannot crush the materials better, at the moment, a crushing roller needs to be detached for wire drawing, and the wire drawing is a process for repairing the roller teeth.
The roller body and the shaft head of the crushing roller in the current market are integrated, the coaxiality requirement of the shaft head and the roller body is controlled through integral processing, the shaft head and the roller body are connected through a bolt to transmit torque, and the shaft head and the roller body are determined to be integrated by conventional processing means and process capacity and cannot be manufactured into a split structure. When the crushing roller is subjected to wire drawing, all parts related to the installation of the crushing roller need to be completely removed, such as a bearing, a bearing seat, a sealing piece, a fixed wall plate, a transmission belt wheel, a belt and the like.
The roller body replacement of the traditional structure has the following problems that 1, the disassembly and assembly workload of the integral replacement of the crushing roller is large, long-time shutdown is required, the production continuity is influenced, and the start-up rate and the equipment benefit of a production line are reduced.
2. The parts that need to dismantle are many, and the work load is big during the dismantlement, wastes time and energy, damages bearing or other parts easily during the dismantlement.
3. The bearing play, the pulley parallelism and position, etc. need to be readjusted during installation and new equipment failures may occur because of an improper installation.
4. The crushing roller is scrapped when the alloy layer is abraded to a certain degree, but the shaft head is good, so that the crushing roller cannot be reused, waste is large, and cost is high.
Disclosure of Invention
The invention aims to overcome the problems in the prior art, and provides a split crusher roller, which only needs to replace the roller body, and relevant parts at the periphery of the roller body, including a shaft head, do not need to be disassembled, so that the workload is greatly reduced, the production downtime caused by roller replacement is shortened, the influence on the production continuity is reduced to be very small, and the benefit is higher.
In order to solve the technical problem, the split type crusher roller comprises a roller body, wherein two ends of the roller body are respectively provided with a shaft head, bearings are respectively arranged on the shaft heads, the centers of two ends of the roller body are respectively provided with a roller end caulking groove, a roller end connecting disc is respectively embedded and fixed in the roller end caulking grooves, and a connecting disc counter bore is arranged at the center of the outer end face of the roller end connecting disc; the roller end flange is arranged at the root of the roller end, a roller end flange convex ring is arranged on the inner end face of the roller end flange, the roller end flange convex ring is embedded into a counter bore of the connecting plate, and the inner end face of the roller end flange is abutted against the outer end face of the roller end connecting plate.
As an improvement of the invention, a plurality of connecting disc fixing screws are uniformly arranged on the circumference of the roller end connecting disc, and the inner end of each connecting disc fixing screw is screwed into a screw hole on the bottom wall of the roller end caulking groove; the roller end connecting disc is characterized in that a plurality of connecting disc pin holes are uniformly formed in the circumference of the roller end connecting disc, a plurality of torque pins are uniformly installed on the circumference of the shaft head flange, and each torque pin is correspondingly inserted into the corresponding connecting disc pin hole.
As a further improvement of the invention, the cross section of each torque pin is square or diamond, the inner end of each torque pin is provided with a guide head, and a gap is reserved between the upper end and the lower end of each torque pin and a connecting disc pin hole.
As a further improvement of the invention, a plurality of spindle head flange counter bores facing the roller body are uniformly arranged on the circumference of the outer side of the spindle head flange convex ring, the root part of each torque pin is respectively embedded in the corresponding spindle head flange counter bore, and the center of the end surface of each torque pin in the spindle head flange counter bore is respectively provided with a torque pin screw hole; and the center of the bottom wall of each spindle head flange counter bore is respectively provided with a through spindle head flange small hole, a torque pin fixing screw is respectively inserted into each spindle head flange small hole, and the inner end of each torque pin fixing screw is respectively screwed into the corresponding torque pin screw hole.
As a further improvement of the invention, the spindle head sequentially comprises a spindle head large-diameter section, a spindle head threaded section and a spindle head small-diameter section from inside to outside, a bearing inner sliding sleeve is installed on the periphery of the spindle head large-diameter section through a flat key, the bearing is installed on the bearing inner sliding sleeve, a bearing inner sliding sleeve convex ring is arranged at the inner end of the bearing inner sliding sleeve, the inner end of the inner ring of the bearing abuts against the bearing inner sliding sleeve convex ring, the outer end of the inner ring of the bearing abuts against a bearing locking nut, and the bearing locking nut is screwed on the threaded section of the bearing inner sliding sleeve.
As a further improvement of the invention, the outer end of the bearing inner sliding sleeve abuts against a bearing spacer, the outer end of the bearing spacer abuts against a spacer locking nut, and the spacer locking nut is screwed on the shaft head thread section; cutting planes are symmetrically arranged on the circumference of the outer end head of the small-diameter section of the shaft head.
As a further improvement of the invention, a connecting disc large-aperture section is arranged in the middle section of the connecting disc counter bore, the outer side of the connecting disc large-aperture section is connected with the connecting disc counter bore through a connecting disc taper hole, and a plurality of steel balls are embedded in the connecting disc large-aperture section and the connecting disc taper hole; and a plurality of flange convex ring round holes for the steel balls to pass through are uniformly formed in the circumference of the middle section of the shaft head flange convex ring.
As a further improvement of the invention, a conical pushing disc is arranged in the inner cavity of the shaft head flange convex ring, the small end of the conical pushing disc faces inwards, and the large end of the conical pushing disc is in clearance fit with the inner peripheral wall of the shaft head flange convex ring; the central hole of the conical push disc is screwed at the inner end of the sleeve, the sleeve is positioned in the central hole of the shaft head and is in clearance fit, the outer end of the sleeve extends out of the outer port of the shaft head and is provided with a sleeve convex ring, a plurality of sleeve convex ring unthreaded holes and sleeve convex ring screw holes are uniformly distributed on the circumference of the sleeve convex ring, sleeve pulling-out screws are respectively screwed in the sleeve convex ring screw holes, the inner end of each sleeve pulling-out screw abuts against the outer end face of the shaft head, sleeve propelling screws are respectively inserted in the sleeve convex ring unthreaded holes, and the inner end of each sleeve propelling screw is respectively screwed in the shaft head end face screw holes.
As a further improvement of the invention, a connecting disc central screw hole is formed in the center of the bottom wall of the connecting disc counter bore, a central rod is inserted into an inner cavity of the sleeve, and the inner end of the central rod is screwed in the connecting disc central screw hole; the outer end face of the shaft head is provided with a circular gland, the inner port of the circular gland is pressed on the circumference of the outer end face of the shaft head, a plurality of gland screws are uniformly pressed on the outer end face of the circular gland, the inner end of each gland screw is screwed into a screw hole in the end face of the shaft head respectively, and the periphery of the sleeve convex ring is provided with a sleeve convex ring groove for the gland screws to pass through.
As a further improvement of the invention, the outer end head of the central rod is provided with a central rod convex ring which is pressed on the outer end surface of the round pressing cover, the outer side of the central rod convex ring is provided with a central rod hexagon head or a central rod square tenon, the central rod penetrates through the central hole of the round pressing cover, the inner wall of the round pressing cover abuts against a shaft check ring, and the shaft check ring is embedded in the annular groove of the central rod.
Another object of the present invention is to overcome the problems in the prior art, and to provide a method for quickly disassembling a roller of a split crusher, which only needs to replace the roller body, and the related parts at the periphery of the roller body, including the shaft heads, do not need to be disassembled, thereby greatly reducing the workload, shortening the production downtime caused by roller replacement, reducing the influence on the production continuity to a minimum, and achieving higher benefits.
In order to solve the technical problems, the method for quickly disassembling the roller of the split crusher sequentially comprises the following steps of:
a1, loosening each sleeve to push a screw, screwing each sleeve to pull out the screw, pulling the sleeve out for a distance, and enabling a conical push disc to move outwards along with the sleeve;
a2, the inner sides of the steel balls lose support, the upper steel ball falls back into the circular hole of the flange convex ring, and the lower steel ball is also in a free state;
a3, reversely rotating the central rod through a wrench, screwing the inner end of the central rod back in a central screw hole of the connecting disc, and pushing the circular gland to move outwards and horizontally by the outer end of the central rod through a retaining ring for a shaft;
a4, the round gland drives the shaft head and a spacer locking nut and a bearing spacer which are arranged on the shaft head to move outwards, and the bearing, the bearing locking nut and a bearing inner sliding sleeve are kept still; the bearing spacer bush is separated from the bearing inner sliding sleeve, and the torque pin is separated from a connecting disc pin hole of a connecting disc at the roller end;
and A5, taking the roller body out of the machine body.
Another object of the present invention is to overcome the problems in the prior art, and to provide a method for quickly mounting a roller of a split crusher, which can quickly complete the connection between a shaft head and a roller body, ensure concentricity, greatly reduce workload, shorten production downtime caused by roller replacement, reduce the influence on production continuity to a minimum, and achieve higher benefits.
In order to solve the technical problems, the quick installation method of the split crusher roller sequentially comprises the following steps:
b1, after mounting roller end connecting discs at two ends of the roller body, sending the roller body into a machine body to be in place;
b2, rotating the shaft head to align a torque pin on the shaft head flange with a pin hole of the connecting disc;
b3, the central rod is rotated forwards through a wrench, the inner end of the central rod is screwed in a central screw hole of the connecting disc, and the outer end of the central rod presses the round press cover to move inwards through a convex ring of the central rod;
b4, the round gland drives the shaft head, a spacer sleeve locking nut and a bearing spacer sleeve which are installed on the shaft head to translate inwards, and the free end of the torque pin is inserted into a pin hole of the connecting plate; simultaneously, each sleeve pushing screw is screwed, so that the sleeve drives the conical pushing disc to move inwards, the outer conical surface extrudes each steel ball outwards, the outer edge of each steel ball is embedded into a connecting disc conical hole and a connecting disc large-aperture section of the roller end connecting disc, and accurate concentricity and locking between the flange convex ring of the shaft head and the roller end connecting disc are realized;
and B5, screwing the spacer sleeve locking nut to enable the bearing spacer sleeve to abut against the outer side of the bearing inner sliding sleeve.
Compared with the prior art, the invention has the following beneficial effects: 1. the shaft head adopts a unique centering structure, so that higher coaxiality of the shaft head and the roller body can be ensured, and the dynamic balance is ensured to be qualified; the problems of coaxiality and dynamic balance are solved, so that the shaft head and the roller body are processed in a split mode, and assembly type installation becomes possible;
2. the working strength of the roller is reduced by 70%, the roller changing time is reduced by 70%, the roller changing device is very required for enterprises producing continuously for 24 hours, and the production efficiency of the crusher can be greatly improved;
3. the roller body, the shaft head and the locking mechanism are good in general consistency and can be completely exchanged, the acquisition cost of the crushing roller is greatly reduced, the roller body and the shaft head can be separately purchased according to needs, the integral replacement is not needed when the roller body and the shaft head are damaged, and the maintenance cost is greatly reduced;
4. because the bearing, the belt pulley, peripheral parts and the like do not need to be disassembled when the crushing roller is replaced, the shaft head only needs to be disassembled from the roller body without disassembling, and the related parts of the bearing and the belt pulley cannot be damaged;
5. during installation, the bearing clearance is not required to be adjusted, and the position of the belt pulley is not required to be adjusted;
6. the requirements of bending moment and torque when the crusher roller works can be met;
7. no matter tear the roller open and adorn the roller, all parts such as round gland, sleeve pipe, well core rod that connect on the spindle nose all need not dismantle around the roll change, the spindle nose still in original position with the roll body be connected can, only need rotate sleeve pipe propulsion screw, sleeve pipe pull-out screw, well core rod hexagon head and spacer lock nut can.
Drawings
The invention will be described in further detail with reference to the following drawings and detailed description, which are provided for reference and illustration purposes only and are not intended to limit the invention.
FIG. 1 is a front view of a split crusher roll of the present invention;
FIG. 2 is an enlarged view of the roll nose portion of the split crusher roll of the present invention;
FIG. 3 is an enlarged left side view of FIG. 1;
FIG. 4 is a perspective view of FIG. 1;
FIG. 5 is an enlarged cross-sectional view of one end of the roll body in the present invention;
FIG. 6 is a first perspective view of the head of the present invention;
FIG. 7 is a second perspective view of the head of the present invention;
FIG. 8 is a front exploded view of the present invention;
fig. 9 is a perspective exploded view of the present invention.
In the figure: 1. a shaft head; 1a, a shaft head flange; 1b, a shaft head flange convex ring; 1c, a large-diameter section of the shaft head; 1c1. A keyway; 1d, a shaft head thread section; 1e, a small-diameter section of the shaft head; 1e1, cutting a plane; 2. a sleeve; 2a, a sleeve convex ring; 2b, driving the screw by the sleeve; 2c, pulling out the screw from the sleeve; 3. a conical push disk; 4. a center pole; 4a, a hexagon head of the center rod; 4b, a convex ring of the center rod; 4c, a retainer ring for the shaft; 5. a round gland; 5a, a gland screw; 6. a roller end connecting disc; 6a, connecting disc taper holes; 6b, connecting a large-aperture section of the disc; 6c, connecting disc center screw holes; 6d, connecting disc pin holes; 6e, connecting disc fixing screws; 7. a steel ball; 8. a torque pin; 8a, a torque pin fixing screw; 9. a bearing inner sliding sleeve; 9a, a convex ring of the inner sliding sleeve of the bearing; 9b, a flat bond; 10. a bearing; 11. a bearing lock nut; 12. a bearing spacer; 13. spacer lock nuts; 14. and a roller body.
Detailed Description
In the following description of the present invention, the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are generally "inner" near the roller body and "outer" away from the roller body, for convenience of description and simplicity of description, but do not mean that the apparatus must have a particular orientation.
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further explained below by combining the specific drawings.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
As shown in fig. 1 to 9, the split crusher roll of the present invention includes a roll body 14 and shaft heads 1 connected to both ends of the roll body 14, wherein roll end caulking grooves are respectively formed in centers of both ends of the roll body 14, roll end connection discs 6 are respectively embedded in the roll end caulking grooves, a plurality of connection disc fixing screws 6e are uniformly installed on circumferences of the roll end connection discs 6, inner ends of the connection disc fixing screws 6e are screwed into screw holes in bottom walls of the roll end caulking grooves, so as to fix the roll end connection discs 6 in the roll end caulking grooves, and the roll end connection discs 6, the roll end caulking grooves and the roll body 14 share an axis. Twelve connecting disc fixing screws 6e are usually inner hexagonal countersunk head screws, and the outer end face of the roller end connecting disc 6 is flush with the end face of the roller body 14.
The center of the outer end face of the roller end connecting disc 6 is provided with a connecting disc counter bore, the bottom of the connecting disc counter bore is a connecting disc counter bore bottom wall, the center of the connecting disc counter bore bottom wall is provided with a connecting disc center screw hole 6c, and the connecting disc center screw hole 6c is communicated with the roller body center hole and is coaxial.
The root part of the shaft head 1 close to the roller body 14 is provided with a shaft head flange 1a, the inner end face, facing the roller body 14, of the shaft head flange 1a is provided with a shaft head flange convex ring 1b extending towards the direction of the roller body 14, the shaft head flange convex ring 1b is embedded into a counter bore of the connecting plate, and the inner end face of the shaft head flange 1a abuts against the outer end face of the roller end connecting plate 6.
A plurality of torque pins 8 are uniformly arranged on the circumference of the shaft head flange 1a, a plurality of connecting disc pin holes 6d are also uniformly arranged on the circumference of the outer end face of the roller end connecting disc 6, the shape of each connecting disc pin hole 6d is matched with that of each torque pin 8, and each torque pin 8 is correspondingly inserted into the corresponding connecting disc pin hole 6d. Between each torque pin 8 and the connecting disc pin hole 6d, one connecting disc pin hole 6d can be respectively arranged on four quadrant points of the roller end connecting disc 6, and four torque pins 8 are correspondingly arranged on the circumference of the shaft head flange 1a.
A plurality of spindle head flange counter bores facing the roller body 14 are uniformly formed in the circumference of the outer side of the spindle head flange convex ring 1b, the outer end, namely the root, of each torque pin 8 is cylindrical, and the root of each torque pin 8 is embedded in the corresponding spindle head flange counter bore respectively. The cross section of the inserting end of each torque pin 8 is square or diamond, the diagonal direction of the diamond can be arranged along the diameter direction of the roller end connecting disc 6, so that the roller end connecting disc 6 has the maximum height along the radial direction, and the torque transmission capacity is larger. Each edge is provided with an arc chamfer, and the inserted front end is provided with an inner end which is provided with a guide head respectively, so that the smooth insertion is facilitated. And gaps are reserved between the upper end and the lower end of each torque pin and the pin holes of the connecting disc, so that interference with the automatic centering mechanism is avoided. The gaps in the left and right directions of each torque pin gradually disappear after being used for a period of time due to the transmission of torque, and the gaps at the upper end and the lower end are always reserved.
The centers of the end faces of the torque pins 8, which are positioned in the counter bores of the shaft head flanges, are respectively provided with torque pin screw holes which are counter bores of internal threads; and the center of the bottom wall of each shaft head flange counter bore is respectively provided with a shaft head flange small hole, and each shaft head flange small hole is coaxial and communicated with the shaft head flange counter bore of the splicing torque pin 8.
Torque pin fixing screws 8a are respectively inserted into the small holes of the shaft head flanges, and the inner end heads of the torque pin fixing screws 8a are respectively screwed into the corresponding torque pin screw holes to suspend the torque pins 8. The head of each torque pin fixing screw 8a is pressed on the outer wall of the spindle head flange 1a, the outer wall of the spindle head flange 1a can be provided with a step, the circumference of the center close to the axis is thicker, the circumference of the outer edge is thinner slightly to accommodate the head of the torque pin fixing screw 8a, and the outer end face of the head of the torque pin fixing screw 8a is flush with the middle thick-walled area.
The shaft head 1 sequentially comprises a large-diameter shaft head section 1c, a threaded shaft head section 1d and a small-diameter shaft head section 1e from inside to outside, and steps are not arranged from the large-diameter shaft head section 1c to the root of the shaft head flange 1a, so that the sliding during translation is facilitated. The big diameter section 1c periphery of spindle nose is equipped with keyway 1c1, installs bearing inner sliding sleeve 9 through parallel key 9b, and the inner end of bearing inner sliding sleeve 9 is equipped with bearing inner sliding sleeve protruding circle 9a, installs bearing 10 on the bearing inner sliding sleeve 9, and the inner end of the inner circle of bearing 10 supports and leans on in the bearing sliding sleeve protruding circle 9a, and the outer end of the inner circle of bearing 10 supports and leans on there is bearing lock nut 11, and bearing lock nut 11 connects in the screw thread section of bearing inner sliding sleeve 9 soon. The small-diameter section 1e of the shaft head is provided with a belt pulley through a shaft sleeve, and the inner periphery of the shaft sleeve is fixed on the small-diameter section 1e of the shaft head through keys.
The outer end of the bearing inner sliding sleeve 9 is abutted against a bearing spacer 12, the outer end of the bearing spacer 12 is abutted against a spacer locking nut 13, and the spacer locking nut 13 is screwed on the shaft head thread section 1d.
By means of diameter difference, the bearing inner sliding sleeve 9 is sleeved from the small end and is radially fixed on the large-diameter section 1c of the shaft head through a flat key 9b, and the bearing inner sliding sleeve 9 and the large-diameter section 1c of the shaft head are not axially positioned; then the bearing 10 is arranged on the bearing inner sliding sleeve 9, the inner side of the bearing inner ring is abutted against the bearing inner sliding sleeve convex ring 9a to obtain positioning, and the inner side of the bearing inner ring is positioned by the bearing locking nut 11. The bearing outer ring is fixed in the bearing seat to obtain positioning, and the position fixing of the bearing seat can not change, so that the positions of the bearing 10, the bearing inner sliding sleeve 9 and the bearing locking nut 11 are also fixed and unchanged, the bearing spacer 12 is propped against the outer side of the bearing inner sliding sleeve 9, and the spacer locking nut 13 is propped against the outer side of the bearing spacer 12, so that the bearing inner sliding sleeve 9 is prevented from moving outwards.
The bearing spacers 12 and the spacer locking nuts 13 at the two ends of the roller body 14 determine the center distance between the bearings 10 at the two ends, and the axial positioning of the roller body 14 relative to the bearing seats at the two ends is realized.
Because of the working requirement, the adopted bearing 10 is a self-aligning roller bearing, and the shaft head 1 installed in the self-aligning roller bearing cannot ensure the coaxiality with the roller body 14.
As shown in fig. 5, a connection disc large-aperture section 6b is arranged in the middle section of the connection disc counter aperture, the outer side of the connection disc large-aperture section 6b is connected with the connection disc counter aperture through a connection disc taper hole 6a, namely, the large end of the connection disc taper hole 6a is connected with the connection disc large-aperture section 6b, and the small end of the connection disc taper hole 6a is close to the outer side and is connected with the connection disc counter aperture.
A plurality of steel balls 7 are embedded in the large-aperture section 6b of the connecting disc and the conical hole 6a of the connecting disc, and sixteen steel balls 7 are usually arranged; a plurality of flange convex ring round holes for the steel balls 7 to pass through are uniformly arranged on the circumference of the middle section of the shaft head flange convex ring 1b.
The inner cavity of the shaft head flange convex ring 1b is provided with a conical push disc 3, and the large end of the conical push disc is in clearance fit with the inner peripheral wall of the shaft head flange convex ring 1b, so that the shaft head flange convex ring 1b can be conveniently translated in the inner cavity. The central hole of the conical pushing disc 3 is screwed at the inner end of the sleeve 2 and is connected with the sleeve 2 into a whole.
The automatic centering device comprises a sleeve 2, a conical push disc 3, a plurality of flange convex ring round holes of a shaft head flange convex ring 1b, a steel ball 7, a connecting disc taper hole 6a of a roller end connecting disc 6 and a connecting disc large-hole-diameter section 6b.
The small end of the conical pushing disc 3 is inward, when the conical pushing disc 3 is close to the outer side where the shaft head flange 1a is located, the outer conical surface of the conical pushing disc 3 provides a partial accommodating space for the steel balls 7, each steel ball 7 is completely located in a corresponding flange convex ring round hole, and the shaft head flange convex ring 1b can freely translate in a connecting disc counter bore of the roller end connecting disc 6, so that the conical pushing disc is convenient to insert or move out.
The sleeve 2 is positioned in the central hole of the shaft head 1 and is in clearance fit, so that the sleeve 2 can translate in the central hole of the shaft head conveniently; the outer end of sleeve pipe 2 stretches out the outer port of spindle nose 1 and is equipped with sleeve pipe bulge loop 2a, and evenly distributed has a plurality of sleeve pipe bulge loop 2a unthreaded holes and sleeve pipe bulge loop screw on the circumference of sleeve pipe bulge loop 2a, sets up three sleeve pipe bulge loop unthreaded holes and three sleeve pipe bulge loop screw usually, distributes on same circumference, and mutual interval sets up.
When each sleeve propelling screw 2b is screwed in, the hexagon socket head of each sleeve propelling screw 2b presses the sleeve convex ring 2a to move inwards, the sleeve convex ring 2a drives the sleeve 2 to move inwards, the sleeve 2 drives the conical push disc 3 to move inwards, namely, the outer conical surface of the conical push disc 3 moves inwards, each steel ball 7 is extruded out, sixteen steel balls 7 roll outwards along the circular holes of the flange convex rings simultaneously and are embedded into the conical holes 6a and the large-hole diameter sections 6b of the connecting disc, the axle head 1 and the roller end connecting disc 6 are automatically coaxial, gaps between each torque pin 8 and the pin holes 6d of the connecting disc provide space for automatic centering, and torque is still transmitted by each torque pin 8.
Because the contact area of the locking part of the steel ball 7 is small, but the stress is large, the conical push plate 3, the roller end connecting plate 6 and the steel ball 7 are preferably made of bearing steel, and the shaft head 1 is in contact with the steel ball 7.
Sleeve drawing screws 2c are respectively screwed in the screw holes of the convex rings of each sleeve, and the inner end heads of the sleeve drawing screws 2c are abutted against the outer end face of the shaft head 1. The sleeve pushing screw 2b and the sleeve pulling screw 2c are both hexagon socket head cap screws, and three sleeve pushing screws and three sleeve pulling screws are respectively arranged; six round holes are uniformly formed in the outer end face of the round pressing cover 5, and are used for enabling an inner hexagonal wrench to rotate the sleeve pushing screw 2b or the sleeve pulling screw 2c.
After each sleeve pushing screw 2b is unscrewed, each sleeve pulling screw 2c is screwed in, because the inner end head of each sleeve pulling screw 2c is limited, the sleeve convex ring screw hole is stressed to push out the sleeve convex ring 2a outwards, the sleeve convex ring 2a drives the sleeve and the conical pushing disc 3 to move outwards, the large end of the conical pushing disc 3 is withdrawn outwards, the inner side of each steel ball 7 loses support, and the steel balls fall into the flange convex ring circular hole or are in a state of being retractable into the flange convex ring circular hole.
A central rod 4 is inserted into the inner cavity of the sleeve 2, and the inner end of the central rod 4 is screwed in a central screw hole 6c of the connecting disc; the outer end face of the shaft head 1 is provided with a circular gland 5, the inner port of the circular gland 5 is pressed on the circumference of the outer end face of the shaft head 1, six gland screws 5a are uniformly pressed on the outer end face of the circular gland 5, the inner end of each gland screw 5a is screwed into a screw hole in the end face of the shaft head respectively, the periphery of the sleeve convex ring 2a is provided with six sleeve convex ring grooves, and the middle part of each gland screw 5a penetrates through the sleeve convex ring grooves respectively.
The outer end of well core rod 4 is equipped with well core rod bulge loop 4b, well core rod bulge loop 4b presses at the outer terminal surface of round gland 5, well core rod 4 passes in the centre bore of round gland 5, the inner wall of round gland 5 supports and leans on there being shaft retaining ring 4c, shaft retaining ring 4c inlays in well core rod 4's annular groove, well core rod bulge loop 4b realizes the axial positioning between well core rod 4 and the 5 outer walls of round gland with shaft retaining ring 4c, well core rod 4 can rotate in round gland 5 promptly, but axial position relatively fixed between them.
The outer side of the central rod convex ring 4b is provided with a central rod hexagon head 4a or a central rod square tenon, so that the central rod 4 can be conveniently rotated, when the inner end of the central rod rotates in a central screw hole 6c of the connecting disc, the relative position of the central rod 4 and the roller end connecting disc 6 is changed, the circular gland 5 is driven to move outwards or inwards, and the shaft head 1 is driven to move outwards or inwards by the circular gland 5.
The invention discloses a method for quickly disassembling a split crusher roller, which sequentially comprises the following steps:
a1, unscrewing three sleeve propelling screws 2b to provide a certain space for outward movement of a sleeve convex ring 2 a; then three sleeve pulling screws 2c are screwed in, and because the inner end heads of the sleeve pulling screws 2c are limited, the middle part of the sleeve pulling screws 2c enables the sleeve convex ring 2a to move outwards, the whole body formed by the sleeve 2 and the conical push disc 3 is pulled out by a certain distance outwards, and the conical push disc 3 moves outwards along with the sleeve 2;
a2, the inner sides of the steel balls 7 lose support, the upper steel ball 7 falls back into a circular hole of the flange convex ring, the lower steel ball 7 is also in a free state to unlock the shaft head flange convex ring 1b and the roller end connecting disc 6, and the lower steel ball 7 can be completely separated from the conical hole 6a of the connecting disc and completely retracted into the circular hole of the flange convex ring when the shaft head flange convex ring 1b moves outwards;
a3, reversely rotating the central rod 4 through a wrench, rotatably withdrawing the inner end of the central rod 4 in a central screw hole 6c of the connecting disc, and pushing the circular pressing cover 5 to move outwards and horizontally by the outer end of the central rod 4 through a retaining ring 4c for a shaft;
a4, the round gland 5 drives the shaft head 1, a spacer locking nut 13 and a bearing spacer 12 which are installed on the shaft head 1 to move outwards, a bearing 10, a bearing locking nut 11 and a bearing inner sliding sleeve 9 are kept still, and a bearing seat does not need to be disassembled; the bearing spacer 12 is separated from the bearing inner sliding sleeve 9, and the torque pin 8 is pulled out from the connecting disc pin hole 6d of the roller end connecting disc 6 until the bearing spacer is completely separated;
a5, the roller body 14 can be taken out of the machine body by adopting a special tool.
Because the bearing 10 is a self-aligning roller bearing, the shaft head 1 can sag due to the self weight of the belt pulley, and the separation and assembly of the shaft head 1 and the roller body 14 are influenced. A channel steel support can be manufactured, brackets with openings upwards warped on two sides are placed on the channel steel support to support the belt pulley or the fixed shaft head 1, and a linear guide rail is mounted on the lower portion of the channel steel support and can move back and forth. The height of the bracket is adjustable, the bracket is placed in advance before the shaft head 1 is detached, the height position is adjusted, the supporting belt pulley or the shaft head is supported in advance, and the sagging in the detaching process can be avoided.
The invention discloses a quick installation method of a split crusher roller, which sequentially comprises the following steps:
b1, after mounting roller end connecting discs 6 at two ends of the roller body 14, sending the roller body into a machine body to be in place; in most cases, when the roller body 14 is detached for wire drawing and other processing, the roller end connecting disc 6 is fixed on the roller end caulking groove and is kept still;
b2, the shaft head 1 is rotated through the pair of cutting planes 1e1 of the small-diameter section 1e of the shaft head, so that the torque pin 8 on the shaft head flange 1a is basically aligned with the connecting disc pin hole 6d, and the insertion is not influenced;
b3, the central rod 4 is rotated forwards through a wrench, the inner end of the central rod 4 is screwed in a central screw hole 6c of the connecting disc, and the outer end of the central rod 4 presses the round press cover 5 to move inwards through a convex ring 4B of the central rod;
b4, the round gland 5 is fixedly connected with the shaft head 1 without being disassembled, the round gland 5 drives the shaft head 1, a spacer locking nut 13 and a bearing spacer 12 which are installed on the shaft head 1 to translate inwards, and the free end of the torque pin 8 is inserted into the connecting disc pin hole 6 d; simultaneously, the sleeve pushing screws 2b are screwed, so that the sleeve 2 drives the conical pushing disc 3 to move inwards, the outer conical surface extrudes the steel balls 7 outwards, the outer edge of each steel ball 7 is embedded into a connecting disc conical hole 6a and a connecting disc large-hole-diameter section 6b of the roller end connecting disc 6, and accurate concentricity and locking between the shaft head flange convex ring 1b and the roller end connecting disc 6 are realized;
b5, rechecking, and screwing the central rod 4; and then the spacer locking nut 13 is screwed to enable the bearing spacer 12 to abut against the outer side of the bearing inner sliding sleeve 9.
Because the spindle nose 1 and the roller body 14 are connected in an assembling way, the special structural design of the spindle nose 1 realizes that the spindle nose 1 and the roller body 14 can be separated without moving the bearing 10 and the bearing seat when the roller body 14 is dismounted; the unique design of roll body 14 can guarantee that the horizontal position of crushing roller for the organism can not change after the roll body is changed at every turn, does not need repeated adjustment, and bearing 10 need not dismantle consequently can not damage because of the roller dismouting, and the belt pulley structure is unchangeable, still the taper sleeve structure, locks on spindle nose 1, moves together with spindle nose 1 during spindle nose 1 and the roll body dismouting, does not need the dismouting also can not cause the screw thread to damage and then cause the belt pulley to change because of fastening bolt's dismouting.
While the foregoing is directed to the preferred embodiment of the present invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow. In addition to the embodiments described above, other embodiments of the invention are possible without departing from the spirit and scope of the invention. The invention also comprises various changes and improvements, and all technical solutions formed by equivalent substitutions or equivalent transformations fall within the protection scope of the claims of the invention. The scope of the invention is defined by the appended claims and equivalents thereof. Technical features of the present invention which are not described may be implemented by or using the prior art, and will not be described herein.
Claims (12)
1. The utility model provides a split type breaker roll, includes the roll body, the both ends of roll body are equipped with the spindle nose respectively, install bearing, its characterized in that on the spindle nose respectively: the centers of two ends of the roller body are respectively provided with a roller end caulking groove, a roller end connecting disc is respectively embedded and fixed in the roller end caulking grooves, and a connecting disc counter bore is arranged at the center of the outer end face of the roller end connecting disc; the roller end flange is arranged at the root of the roller end, a roller end flange convex ring is arranged on the inner end face of the roller end flange, the roller end flange convex ring is embedded into a counter bore of the connecting plate, and the inner end face of the roller end flange is abutted against the outer end face of the roller end connecting plate.
2. The split crusher roll of claim 1, characterized in that: a plurality of connecting disc fixing screws are uniformly arranged on the circumference of the roller end connecting disc, and the inner end of each connecting disc fixing screw is screwed into a screw hole in the bottom wall of the roller end caulking groove; the roller end connecting disc is characterized in that a plurality of connecting disc pin holes are uniformly formed in the circumference of the roller end connecting disc, a plurality of torque pins are uniformly installed on the circumference of the shaft head flange, and each torque pin is correspondingly inserted into the corresponding connecting disc pin hole.
3. The split crusher roll of claim 2, characterized in that: the cross section of each torque pin is square or rhombic, the inner end of each torque pin is provided with a guide head, and a gap is reserved between the upper end and the lower end of each torque pin and the pin hole of the connecting disc.
4. The split crusher roll of claim 2, characterized in that: a plurality of spindle head flange counter bores facing the roller body are uniformly formed in the circumference of the outer side of the spindle head flange convex ring, the root of each torque pin is embedded in the corresponding spindle head flange counter bore, and the center of the end face of each torque pin in the spindle head flange counter bore is provided with a torque pin screw hole; and the center of the bottom wall of each shaft head flange counter bore is respectively provided with a through shaft head flange small hole, a torque pin fixing screw is respectively inserted into each shaft head flange small hole, and the inner end head of each torque pin fixing screw is respectively screwed into the corresponding torque pin screw hole.
5. The split crusher roll of claim 1, characterized in that: the spindle nose from interior to exterior includes big diameter section of spindle nose, spindle nose screw thread section and the little diameter section of spindle nose in proper order, the sliding sleeve in the bearing is installed through the parallel key to the big diameter section periphery of spindle nose, the bearing is installed on the sliding sleeve in the bearing, the interior end of sliding sleeve in the bearing is equipped with the protruding circle of sliding sleeve in the bearing, the inner circle inner end of bearing supports and leans on the sliding sleeve protruding circle in the bearing, the outer end of inner circle of bearing supports and leans on there is bearing lock nut, bearing lock nut connects soon in the bearing on the screw thread section of sliding sleeve.
6. The split crusher roll of claim 5, characterized in that: the outer end of the bearing inner sliding sleeve abuts against a bearing spacer, the outer end of the bearing spacer abuts against a spacer locking nut, and the spacer locking nut is screwed on the threaded section of the shaft head; cutting planes are symmetrically arranged on the circumference of the outer end head of the small-diameter section of the shaft head.
7. The split crusher roll of claim 1, characterized in that: the middle section of the connecting disc counter bore is provided with a connecting disc large-bore section, the outer side of the connecting disc large-bore section is connected with the connecting disc counter bore through a connecting disc taper hole, and a plurality of steel balls are embedded in the connecting disc large-bore section and the connecting disc taper hole; and a plurality of flange convex ring round holes for the steel balls to pass through are uniformly formed in the circumference of the middle section of the shaft head flange convex ring.
8. The split crusher roll of claim 7, characterized in that: the inner cavity of the shaft head flange convex ring is provided with a conical push disc, the small end of the conical push disc is inward, and the large end of the conical push disc is in clearance fit with the inner peripheral wall of the shaft head flange convex ring; the central hole of the conical push disc is screwed at the inner end of the sleeve, the sleeve is positioned in the central hole of the shaft head and is in clearance fit, the outer end of the sleeve extends out of the outer port of the shaft head and is provided with a sleeve convex ring, a plurality of sleeve convex ring unthreaded holes and sleeve convex ring screw holes are uniformly distributed on the circumference of the sleeve convex ring, sleeve pulling-out screws are respectively screwed in the sleeve convex ring screw holes, the inner end of each sleeve pulling-out screw abuts against the outer end face of the shaft head, sleeve propelling screws are respectively inserted in the sleeve convex ring unthreaded holes, and the inner end of each sleeve propelling screw is respectively screwed in the shaft head end face screw holes.
9. The split crusher roll of claim 8, characterized in that: a connecting disc central screw hole is formed in the center of the bottom wall of the connecting disc counter bore, a central rod is inserted into the inner cavity of the sleeve, and the inner end of the central rod is screwed in the connecting disc central screw hole;
the outer end face of the shaft head is provided with a circular gland, the inner port of the circular gland is pressed on the circumference of the outer end face of the shaft head, a plurality of gland screws are uniformly pressed on the outer end face of the circular gland, the inner end of each gland screw is screwed into a screw hole in the end face of the shaft head respectively, and the periphery of the sleeve convex ring is provided with a sleeve convex ring groove for the gland screws to pass through.
10. The split crusher roll of claim 9, characterized in that: the outer end of the central rod is provided with a central rod convex ring, the central rod convex ring is pressed on the outer end face of the circular gland, the outer side of the central rod convex ring is provided with a central rod hexagon head or a central rod square tenon, the central rod penetrates through the central hole of the circular gland, the inner wall of the circular gland abuts against a shaft check ring, and the shaft check ring is embedded in the annular groove of the central rod.
11. A method for rapidly disassembling the rolls of the split crusher as claimed in claim 10, which comprises the following steps in sequence:
a1, loosening each sleeve to push a screw, screwing each sleeve to pull out the screw, pulling the sleeve out for a distance, and enabling a conical push disc to move outwards along with the sleeve;
a2, the inner sides of the steel balls lose support, the upper steel ball falls back into the circular hole of the flange convex ring, and the lower steel ball is also in a free state;
a3, reversely rotating the central rod through a wrench, screwing the inner end of the central rod back in a central screw hole of the connecting disc, and pushing the circular gland to move outwards and horizontally by the outer end of the central rod through a retaining ring for a shaft;
a4, the round gland drives the shaft head, a spacer sleeve locking nut and a bearing spacer sleeve which are installed on the shaft head to move outwards, and the bearing, the bearing locking nut and the bearing inner sliding sleeve are kept still; the bearing spacer bush is separated from the bearing inner sliding sleeve, and the torque pin is separated from a connecting disc pin hole of a connecting disc at the roller end;
and A5, taking the roller body out of the machine body.
12. A method for quickly installing the rolls of the split crusher as claimed in claim 10, which comprises the following steps in sequence:
b1, after mounting roller end connecting discs at two ends of the roller body, sending the roller body into a machine body to be in place;
b2, rotating the shaft head to align a torque pin on a flange of the shaft head with a pin hole of the connecting disc;
b3, the central rod is rotated forwards through a wrench, the inner end of the central rod is screwed in a central screw hole of the connecting disc, and the outer end of the central rod presses the round press cover to move inwards through a convex ring of the central rod;
b4, the round gland drives the shaft head, a spacer locking nut and a bearing spacer which are installed on the shaft head to translate inwards, and the free end of the torque pin is inserted into a pin hole of the connecting disc; simultaneously, each sleeve pushing screw is screwed, so that the sleeve drives the conical pushing disc to move inwards, the outer conical surface extrudes each steel ball outwards, the outer edge of each steel ball is embedded into a connecting disc conical hole and a connecting disc large-aperture section of the roller end connecting disc, and accurate concentricity and locking between the flange convex ring of the shaft head and the roller end connecting disc are realized;
and B5, screwing the spacer sleeve locking nut to enable the bearing spacer sleeve to abut against the outer side of the bearing inner sliding sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210890440.3A CN115228556B (en) | 2022-07-27 | 2022-07-27 | Split crusher roller and rapid disassembly and installation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210890440.3A CN115228556B (en) | 2022-07-27 | 2022-07-27 | Split crusher roller and rapid disassembly and installation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115228556A true CN115228556A (en) | 2022-10-25 |
| CN115228556B CN115228556B (en) | 2023-06-27 |
Family
ID=83675164
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210890440.3A Active CN115228556B (en) | 2022-07-27 | 2022-07-27 | Split crusher roller and rapid disassembly and installation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115228556B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB790806A (en) * | 1955-12-02 | 1958-02-19 | Hendrik Pieter Van Der Knoop | A bearing assembly for an axle and hub, especially for use in motor-vehicles |
| GB0111587D0 (en) * | 2000-05-12 | 2001-07-04 | Power Tool Holders Inc | Chuck with quick change |
| GB0423639D0 (en) * | 2004-10-25 | 2004-11-24 | Cnh Belgium Nv | Crop processor roll assembly |
| CN201999556U (en) * | 2010-12-14 | 2011-10-05 | 杭州大华塑业有限公司 | Upper riding roller of splitting machine |
| CN103161414A (en) * | 2013-03-26 | 2013-06-19 | 重庆松藻煤电有限责任公司 | Safe dismantling device of smooth round drill pipe and method thereof |
| CN105833937A (en) * | 2016-06-07 | 2016-08-10 | 常熟中材装备重型机械有限公司 | Cement clinker roll crusher |
| CN211624141U (en) * | 2019-12-28 | 2020-10-02 | 中铭谷智能机器人(广东)有限公司 | Gear fixing precision mechanism |
| CN212634360U (en) * | 2020-06-22 | 2021-03-02 | 盐城工业职业技术学院 | Weaving equipment roller frock of convenient dismantlement |
| CN113483024A (en) * | 2021-07-14 | 2021-10-08 | 珠海格力电器股份有限公司 | Sliding sleeve structure and electric spindle |
-
2022
- 2022-07-27 CN CN202210890440.3A patent/CN115228556B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB790806A (en) * | 1955-12-02 | 1958-02-19 | Hendrik Pieter Van Der Knoop | A bearing assembly for an axle and hub, especially for use in motor-vehicles |
| GB0111587D0 (en) * | 2000-05-12 | 2001-07-04 | Power Tool Holders Inc | Chuck with quick change |
| GB0423639D0 (en) * | 2004-10-25 | 2004-11-24 | Cnh Belgium Nv | Crop processor roll assembly |
| CN201999556U (en) * | 2010-12-14 | 2011-10-05 | 杭州大华塑业有限公司 | Upper riding roller of splitting machine |
| CN103161414A (en) * | 2013-03-26 | 2013-06-19 | 重庆松藻煤电有限责任公司 | Safe dismantling device of smooth round drill pipe and method thereof |
| CN105833937A (en) * | 2016-06-07 | 2016-08-10 | 常熟中材装备重型机械有限公司 | Cement clinker roll crusher |
| CN211624141U (en) * | 2019-12-28 | 2020-10-02 | 中铭谷智能机器人(广东)有限公司 | Gear fixing precision mechanism |
| CN212634360U (en) * | 2020-06-22 | 2021-03-02 | 盐城工业职业技术学院 | Weaving equipment roller frock of convenient dismantlement |
| CN113483024A (en) * | 2021-07-14 | 2021-10-08 | 珠海格力电器股份有限公司 | Sliding sleeve structure and electric spindle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115228556B (en) | 2023-06-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111376016B (en) | Positioning and guiding tool for low-pressure turbine of engine | |
| CN111266861B (en) | Assembly fixture of low-pressure turbine of engine | |
| CN115228556A (en) | Split crusher roller and quick disassembling and assembling method thereof | |
| CN111408918B (en) | Traction tool for low-pressure turbine of engine | |
| CN217747275U (en) | Quick centering device of roll spindle nose | |
| CN100381711C (en) | Apparatus of exactly centring for rotation shaft | |
| CN210333914U (en) | Internal thread copper pipe spinning device | |
| CN211550164U (en) | Easy dismouting high-speed wheel rolling mill radials roller pull rod locking flange | |
| CN112744387A (en) | Hard alloy combined roller locking device | |
| CN209856215U (en) | Lower holding type main shaft connecting structure of flat-die granulator | |
| CN113059000A (en) | Two-dimensional adjustable precision rolling mill core for hot rolling of seamless steel pipes | |
| CN214888443U (en) | Make things convenient for backing roll external screw thread lock sleeve structure of dismouting | |
| CN1154549C (en) | Quick change pilger die and assembly of same with rollstand arbor | |
| CN219599392U (en) | Dismounting device for blind hole bearing outer ring | |
| CN216180210U (en) | Built-in bearing dismounting puller | |
| CN111890308A (en) | Screw dismounting device and method for escalator roller | |
| CN219388561U (en) | Spinning roller for spinning belt pulley | |
| CN216422427U (en) | Sliding bearing dismounting tool | |
| CN112197142B (en) | Rotary structure of fracturing pump | |
| CN218992383U (en) | Double-eccentric rubber sealing butterfly valve | |
| CN218982674U (en) | Based on combinations roller short stress line rolling mill | |
| CN219684720U (en) | Ram feeding mechanism with automatic compensation function | |
| CN113958618A (en) | Device for quickly disassembling double-row roller bearing | |
| CN219213018U (en) | Portable tool for disassembling rubber roller bearing sleeve and bearing | |
| CN115106377A (en) | Multi-roller star-shaped precision rolling mill with eccentric sleeve gap capable of being adjusted at any time |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |