CN217747275U

CN217747275U - Quick centering device of roll spindle nose

Info

Publication number: CN217747275U
Application number: CN202221962508.6U
Authority: CN
Inventors: 金铭; 吕岩峰; 张萌; 葛杏芝
Original assignee: Myande Group Co Ltd
Current assignee: Myande Group Co Ltd
Priority date: 2022-07-27
Filing date: 2022-07-27
Publication date: 2022-11-08
Anticipated expiration: 2032-07-27

Abstract

The utility model discloses a roller spindle nose quick centering device, wherein connecting discs are respectively embedded at two ends of a roller body, a spindle nose flange convex ring is arranged on the inner end surface of a spindle nose flange at the root part of a spindle nose, and the spindle nose flange is embedded into a connecting disc counter bore on the outer end surface of the connecting disc, and the inner end surface of the spindle nose flange is abutted against the outer end surface of the connecting disc; the middle section of the connecting disc counter bore is provided with a large-bore section, the outer side of the large-bore section is connected with the connecting disc counter bore through 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, and the small end of the conical push disc faces inwards; the central hole of the conical pushing disc is screwed at the inner end of the sleeve, the sleeve is positioned in the central hole of the shaft head, the outer end of the sleeve extends out of the outer port of the shaft head and is provided with a sleeve convex ring, and a push-pull screw is arranged on the sleeve convex ring. The roller body and the shaft head of the device can be independently replaced, the assembly is quick and convenient, and the coaxiality precision can be ensured.

Description

Quick centering device of roll spindle nose

Technical Field

The utility model relates to a roll especially relates to a roll spindle nose quick centering device, belongs to split type roll technical field.

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 element, a fixed wall plate, a transmission belt wheel, a belt and the like.

The traditional structure has the following problems that 1, the disassembly and assembly workload of the whole replacement crushing roller is large, long-time shutdown is needed, 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.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the problem that exists among the prior art, provide a quick centering device of roll spindle nose, with roll body and the components of a whole that can function independently preparation of spindle nose, can change alone, it is swift convenient during the assembly, and can ensure the required precision of axiality, all need not dismantle with the relevant spare part of crushing roller installation, greatly reduced work load and shorten the production down time that causes because of the roll change.

In order to solve the technical problem, the utility model discloses a quick centering device of roll spindle nose, including the spindle nose at roll body and both ends thereof, the both ends of roll body are inlayed respectively and are equipped with the connection pad, the outer terminal surface center of connection pad is equipped with the connection pad counter bore, the root of spindle nose is equipped with the spindle nose flange, the interior terminal surface of spindle nose flange is equipped with spindle nose flange bulge loop, and spindle nose flange bulge loop imbeds in the connection pad counter bore, the interior terminal surface of spindle nose flange supports and leans on the outer terminal surface of connection pad; 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; 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 flange convex ring of the shaft head; the inner cavity of the spindle head flange convex ring is provided with a conical pushing disc, and the small end of the conical pushing disc faces inwards; 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, the outer end of the sleeve extends out of the outer port of the shaft head and is provided with a sleeve convex ring, and a push-pull screw is installed on the sleeve convex ring.

As the utility model discloses an improvement, evenly distributed has a plurality of sleeve pipe bulge loop unthreaded holes and sleeve pipe bulge loop screw on the circumference of sleeve pipe bulge loop, has connect the sleeve pipe screw of pulling out respectively soon in each sleeve pipe bulge loop screw, and the inner end that each sleeve pipe pulled out the screw supports and leans on the outer terminal surface of spindle nose has pegged graft respectively in each sleeve pipe bulge loop unthreaded hole and has advanced the screw, and the inner end that each sleeve pipe advanced the screw connects soon respectively in spindle nose terminal surface screw.

Compared with the prior art, the utility model discloses following beneficial effect has been obtained: 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 bearing and the related parts of 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.

Drawings

The invention will be described in further detail with reference to the drawings and the 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 the rapid centering device for the roller shaft head of the present invention;

FIG. 2 is an enlarged cross-sectional view of one end of the roll body of the present invention;

FIG. 3 is a first perspective view of the middle shaft head of the present invention;

fig. 4 is a second perspective view of the middle shaft head of the present invention.

In the figure: 1. a shaft head; 1a, a shaft head flange; 1b, a shaft head flange convex ring; 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 pushing disc; 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 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. Torque pin set screw; 9. and the roller body.

Detailed Description

In the following description of the present invention, the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, usually with "inner" as close to the roll body and "outer" as far from the roll body, and are only for convenience of description and simplicity of description, and do not mean that the apparatus must have a specific orientation.

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand and understand, the present invention is further explained by combining with 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 4, the utility model discloses a quick centering device of roll spindle nose includes roll body 9 and connects the spindle nose 1 at roll body 9 both ends, the both ends center of roll body 9 is equipped with the roller end caulking groove respectively, it is equipped with connection pad 6 to inlay respectively in the roller end caulking groove, evenly install many connection pad fixing screw 6e on connection pad 6's the circumference, in the screw of the interior end screw in roller end caulking groove diapire of each connection pad fixing screw 6e, fix connection pad 6 in the roller end caulking groove, connection pad 6, the roller end caulking groove is coaxial with roll body 9. The connecting disc fixing screw 6e is an inner hexagonal countersunk head screw, and the outer end face of the connecting disc 6 is flush with the end face of the roller body 9.

The outer end face center of connection pad 6 is equipped with the connection pad counter bore, and the bottom of connection pad counter bore is connection pad counter bore diapire, and the center of connection pad counter bore diapire is equipped with connection pad center screw 6c, and connection pad center screw 6c link up mutually with the roll body centre bore and coaxial line.

The root of the shaft head 1 close to the roller body 9 is provided with a shaft head flange 1a, the inner end face of the shaft head flange 1a facing the roller body 9 is provided with a shaft head flange convex ring 1b extending towards the direction of the roller body 9, the shaft head flange convex ring 1b is embedded into a connecting disc counter bore, and the inner end face of the shaft head flange 1a is abutted against the outer end face of the connecting disc 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 connecting disc 6, the shape of each connecting disc pin hole 6d is matched with the torque pin 8, and each torque pin 8 is correspondingly inserted into the corresponding connecting disc pin hole 6d. And each torque pin 8 is in clearance fit with the connecting disc pin hole 6d, so that the interference with the automatic centering mechanism is avoided. Four quadrant points of the connecting disc 6 can be respectively provided with a connecting disc pin hole 6d, 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 9 are evenly 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 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.

Because of the working requirement, the adopted bearing 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 9.

As shown in fig. 2, 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 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 flange convex ring 1b of the shaft head.

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 connecting disc 6 and a connecting disc large-aperture section 6b.

The tip of toper pushing tray 3 is inside, and when toper pushing tray 3 was close to the outside at spindle nose flange 1a place, the outer conical surface of toper pushing tray 3 provided partial accommodation space for steel ball 7, and each steel ball 7 lies in corresponding flange convex circle round hole completely, and spindle nose flange convex circle 1b can freely translate in the connection pad counter bore of connection pad 6, is convenient for insert or shift out.

The sleeve 2 is positioned in the central hole of the shaft head 1 and is in clearance fit with the central hole of the shaft head, 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.

Sleeve propelling screws 2b are respectively inserted into the unthreaded holes of the convex rings of the sleeves, and the inner ends of the sleeve propelling screws 2b are respectively screwed in the screw holes on the end surfaces of the shaft heads.

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, the steel balls 7 roll outwards along the circular holes of the flange convex rings simultaneously and are embedded into the connecting disc conical holes 6a and the connecting disc large-hole-diameter sections 6b, the shaft head 1 and the connecting disc 6 are automatically coaxial through the matching of the steel balls 7 and the inner conical surface of the connecting disc conical holes, a space is automatically provided for a gap between each torque pin 8 and the connecting disc pin holes 6d, and torque is still transmitted by each torque pin 8.

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 propped against the outer end face of the shaft head 1. The sleeve pushing screws 2b and the sleeve pulling screws 2c are all hexagon socket head cap screws, and three 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, 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 connecting disc 6 is changed, the circular gland 5 is driven to move outwards or inwards, and the circular gland 5 drives the shaft head 1 to move outwards or inwards.

The foregoing is only a preferred and practical embodiment of the present invention, and the basic principles and main features of the present invention and the advantages of the present invention have been shown and described, but not limited thereto, the scope of the present invention is not limited by the above embodiments, and the present invention should be understood by those skilled in the art. In addition to the above embodiments, other embodiments of the present invention are also possible without departing from the spirit and scope of the present invention. The utility model discloses still can have various changes and improvements, all adopt the technical scheme that equivalent replacement or equivalent transform formed, all fall in the protection scope that the utility model discloses required. The scope of the invention is defined by the appended claims and equivalents thereof. The undescribed technical features of the present invention can be realized by or using the prior art, and are not described herein again.

Claims

1. The utility model provides a quick centering device of roll spindle nose, includes the spindle nose at roll body and its both ends, the both ends of roll body are inlayed respectively and are equipped with connection pad, its characterized in that: a connecting disc counter bore is formed in the center of the outer end face of the connecting disc, a spindle head flange is arranged at the root of the spindle head, a spindle head flange convex ring is arranged on the inner end face of the spindle head flange, the spindle head flange convex ring is embedded into the connecting disc counter bore, and the inner end face of the spindle head flange abuts against the outer end face of the connecting disc; 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; 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 flange convex ring of the shaft head; the inner cavity of the spindle head flange convex ring is provided with a conical pushing disc, and the small end of the conical pushing disc faces inwards; 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, the outer end of the sleeve extends out of the outer port of the shaft head and is provided with a sleeve convex ring, and a push-pull screw is installed on the sleeve convex ring.

2. The roll head quick centering device of claim 1, wherein: the circumference of the sleeve convex ring is uniformly distributed with a plurality of sleeve convex ring unthreaded holes and sleeve convex ring screw holes, 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.