CN115179581A

CN115179581A - Pinch roller and method for replacing sector of pinch roller

Info

Publication number: CN115179581A
Application number: CN202210819235.8A
Authority: CN
Inventors: 谢雨; 刘辉; 吴良才; 粟亚彬; 吕文星; 廖冬冬; 区焯荣; 邓鸿荫
Original assignee: Zhongshan Shredder Machinery Co ltd
Current assignee: Zhongshan Shredder Machinery Co ltd
Priority date: 2022-07-12
Filing date: 2022-07-12
Publication date: 2022-10-14

Abstract

The invention discloses a pinch roller which comprises a seat body assembly and at least two fan-shaped blocks. The fan-shaped block is arranged on the base body assembly, the fan-shaped block is enclosed to form an annular plate structure, a rolling portion protruding in the radial direction relative to the base body assembly is arranged on the outer peripheral side of the fan-shaped block, the peripheral surface of the outer side of the rolling portion is enclosed to form an annular surface, and the fan-shaped block is detachably arranged. When the rolling part on the outer peripheral side of the pinch roller is worn and needs to be replaced, the fan-shaped blocks can be detached from the seat body assembly respectively, and then new fan-shaped blocks can be installed on the seat body assembly respectively to enable the new fan-shaped blocks to surround the annular plate structure, so that the pinch roller is replaced and maintained; the fan-shaped blocks can be respectively detached from the seat body assembly, so that when the pinch roller is replaced and maintained, compared with the conventional pinch roller, the fan-shaped blocks are relatively light, can be more easily detached and replaced, and the independent fan-shaped blocks are convenient to machine and manufacture; the seat body assembly can be continuously used for production if not damaged, and waste is reduced.

Description

Pinch roller and method for replacing sector of pinch roller

Technical Field

The invention relates to a rolling mechanism, in particular to a pressing wheel and a method for replacing fan-shaped blocks of the pressing wheel.

Background

In order to convert solid waste into alternative fuel and realize transportation economy and commercialization, high-density fuel rods need to be manufactured through an extrusion molding machine for convenient transportation and storage. Based on the preparation requirement of the alternative fuel, the ring mode extrusion molding machine has more and more market applications, and the maintenance problem is increasingly highlighted. The existing ring die extrusion molding machine is provided with a pressing wheel and a working chamber, materials are sent into the working chamber, and a fuel rod is formed by repeatedly rolling the pressing wheel. However, the roll-in portion of the periphery of the existing pinch roller is easy to wear, and when the pinch roller needs to be replaced after being worn, the whole pinch roller needs to be replaced by a hoisting tool due to the fact that the whole pinch roller is heavy, and therefore the pinch roller is inconvenient to replace.

Disclosure of Invention

The present invention is directed to solve at least one of the problems of the prior art, and to provide a pressing wheel which can be replaced and maintained more conveniently.

The invention also provides a method for replacing the sector of the pinch roller.

A puck according to an embodiment of the first aspect of the present invention includes a base assembly and at least two segments. The fan-shaped block is arranged on the base body assembly, the fan-shaped block is enclosed to form an annular plate structure, a rolling portion protruding in the radial direction relative to the base body assembly is arranged on the outer peripheral side of the fan-shaped block, the peripheral surface of the outer side of the rolling portion is enclosed to form an annular surface, and the fan-shaped block is detachably arranged.

The puck according to the embodiment of the first aspect of the present invention has at least the following advantageous effects: the annular surface formed by the rolling parts on the outer peripheral sides of the fan-shaped blocks is protruded radially relative to the base assembly, so that the pressing wheel can roll raw materials, the roller-shaped parts on the outer peripheral sides of the pressing wheel need to be replaced after being worn, the fan-shaped blocks can be detached from the base assembly respectively, and then new fan-shaped blocks can be installed on the base assembly respectively to form an annular plate structure, so that the pressing wheel can be replaced and maintained; the fan-shaped blocks can be respectively detached from the base body assembly, so that when the pinch roller is replaced and maintained, compared with a conventional pinch roller, the fan-shaped blocks are relatively light, can be more easily detached and replaced, and the independent fan-shaped blocks are also convenient to machine and manufacture; the seat body assembly can be continuously used for production if not damaged, and waste is reduced.

According to some embodiments of the present invention, the seat assembly includes a main seat and a locking and pressing mechanism, the main seat is provided with a cylindrical positioning seat, a flange plate is disposed on an outer periphery of the positioning seat, the annular plate structure has an inner hole portion adapted to the positioning seat, the annular plate structure is sleeved on the positioning seat through the inner hole portion, the locking and pressing mechanism is detachably disposed on the positioning seat, and the locking and pressing mechanism and the flange plate clamp and fix the fan-shaped block.

According to some embodiments of the invention, the locking mechanism comprises a locking pressing plate and a threaded fastener, the locking pressing plate is detachably arranged on the positioning seat, the locking pressing plate and the flange plate are respectively arranged on two opposite sides of the segment, and the threaded fastener is used for clamping and fastening the locking pressing plate and the flange plate to the segment.

According to some embodiments of the invention, the main base body is provided with circumferential positioning portions corresponding to the segments one to one, the segments are provided with circumferential fitting portions for fitting with the corresponding circumferential positioning portions, and the circumferential positioning portions are used for positioning circumferential positions of the segments.

According to some embodiments of the invention, the locking mechanism and/or the flange plate is provided with a radial positioning portion, and the segments are provided with a radial fitting portion for abutting against the radial fitting portion and limiting the segments from moving radially outwards relative to the positioning socket.

According to some embodiments of the invention, further comprising a release drive configured to apply a force that moves the locking plate away from the segment.

According to some embodiments of the invention, the lock pressure plate is provided with a threaded through hole, a hole axis of the threaded through hole is arranged in parallel with a hole axis of the inner hole portion, the separation driving member is configured as a threaded pushing member, the threaded pushing member is connected to the threaded through hole in a threaded manner, and one end of the threaded pushing member is opposite to the segment.

According to some embodiments of the invention, four of said segments are provided, the angles of the four segments being the same.

According to the sector replacing method of the pinch roller of the embodiment of the second aspect of the invention, the pinch roller comprises a seat body assembly and at least two sectors; the fan-shaped block is arranged on the seat body assembly, the fan-shaped block is enclosed into an annular plate structure, a rolling part which is radially protruded relative to the seat body assembly is arranged on the outer peripheral side of the fan-shaped block, the outer peripheral surface of the rolling part is enclosed to form an annular surface, and the fan-shaped block is detachably arranged; the base body assembly comprises a main base body and a locking and pressing mechanism, the main base body is provided with a columnar positioning seat, the periphery of the positioning seat is provided with a flange plate, the annular plate structure is provided with an inner hole part matched with the positioning seat, the annular plate structure is sleeved on the positioning seat through the inner hole part, the locking and pressing mechanism is detachably arranged on the positioning seat, and the locking and pressing mechanism and the flange plate clamp and fix the fan-shaped block; the locking and pressing mechanism comprises a locking and pressing plate and a threaded fastener, the locking and pressing plate is detachably arranged on the positioning seat, the locking and pressing plate and the flange plate are respectively arranged on two opposite sides of the sector block, and the threaded fastener is used for clamping and fastening the locking and pressing plate and the flange plate to the sector block; the method for replacing the segments of the pinch roller comprises the following steps:

disassembling the threaded fastener;

detaching and separating the locking pressing plate from the sector block and the main base body;

detaching and separating the fan-shaped blocks from the main base body;

mounting the new segment in place of the original segment;

covering the locking pressing plate on the fan-shaped block;

and clamping and fastening the sector blocks by using the threaded fasteners and the locking pressure plate and the flange plate.

According to some embodiments of the invention, the puck further includes a release drive configured to apply a force that moves the locking pressure plate away from the segment; the locking and pressing plate is provided with a threaded through hole, the hole axis of the threaded through hole is parallel to the hole axis of the inner hole part, the separation driving piece is configured to be a threaded pushing piece, the threaded pushing piece is in threaded connection with the threaded through hole, and one end of the threaded pushing piece is opposite to the fan-shaped block; the method for detaching and separating the lock pressing plate from the sector and the main base body comprises the following steps:

and rotating the thread pushing piece to extend one end of the thread pushing piece out of the thread through hole and abut against the sector block, so that the locking pressing plate is separated from the sector block.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The invention is further described below with reference to the drawings and examples;

FIG. 1 is a schematic front view of a puck according to an embodiment of the present invention;

FIG. 2 isbase:Sub>A schematic sectional view taken along the line A-A of FIG. 1;

FIG. 3 is an exploded view of some of the components of the puck according to an embodiment of the present invention;

FIG. 4 is an exploded view of the base of the puck according to one embodiment of the present invention;

FIG. 5 is a perspective view of the sector segments enclosing to form an annular plate structure according to an embodiment of the present invention;

FIG. 6 is a schematic flow chart illustrating a method for replacing segments of a puck according to an embodiment of the present invention;

FIG. 7 is a schematic diagram of step S21 of a puck segment replacement method according to an embodiment of the present invention.

Reference numerals:

the seat body assembly 100, the main seat body 110, the positioning seat 111, the flange plate 112, the locking and pressing mechanism 120, the locking and pressing plate 121, the threaded fastener 122, the circumferential positioning part 130, the eccentric bushing 140, the sealing cover 150 and the bearing 160;

segment 200, annular plate structure 210, roll press 220, circumferential mating portion 230, radial mating portion 240;

detaching the driving member 300;

the axis of rotation B of the puck.

Detailed Description

Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.

Referring to fig. 1 to 5, the pressing wheel according to the embodiment of the present invention includes a base assembly 100 and four segments 200. The sector block 200 is arranged on the base assembly 100, the sector block 200 is enclosed to form an annular plate structure 210, a rolling portion 220 protruding radially relative to the base assembly 100 is arranged on the outer peripheral side of the sector block 200, the outer peripheral surface of the rolling portion 220 is enclosed to form an annular surface, and the sector block 200 is detachably arranged.

The circular ring surface surrounded by the rolling part 220 on the outer periphery side of the sector block 200 is protruded radially relative to the base assembly 100, so that the pressing wheel can roll raw materials, when the rolling part 220 on the outer periphery side of the pressing wheel is worn and needs to be replaced, the sector blocks 200 can be respectively detached from the base assembly 100, and then new sector blocks 200 can be respectively installed on the base assembly 100 to be surrounded into the annular plate structure 210, so that the pressing wheel can be replaced and maintained; the fan-shaped blocks 200 can be respectively detached from the base assembly 100, so that when the pinch roller is replaced and maintained, compared with the conventional pinch roller, the fan-shaped blocks 200 are relatively light and can be more easily detached and replaced, and the independent fan-shaped blocks 200 are also convenient to process and manufacture; if the seat body assembly 100 is not damaged, the seat body assembly can be continuously used for production, and waste is reduced. It is conceivable that the number of segments 200 may also be other numbers without being limited to the above-described embodiment, for example, two, three, or more than four segments 200.

Referring to fig. 1 to 5, the base assembly 100 includes a main base 110 and a locking mechanism 120, the main base 110 is provided with a cylindrical positioning seat 111, a flange plate 112 is provided on an outer periphery of the positioning seat 111, the annular plate structure 210 has an inner hole portion adapted to the positioning seat 111, the annular plate structure 210 is sleeved on the positioning seat 111 through the inner hole portion, the locking mechanism 120 is detachably disposed on the positioning seat 111, and the locking mechanism 120 and the flange plate 112 clamp and fix the segment 200. The locking and pressing mechanism 120 and the flange plate 112 are used for clamping and fixing the fan-shaped block 200, the inner hole part is positioned with the positioning seat 111, and the locking and pressing mechanism 120 is detachably arranged, so that the fan-shaped block 200 can be detached.

Specifically, the annular plate structure 210 is a plate-like structure similar to an annular ring formed by enclosing the four segments 200.

Referring to fig. 1 to 5, the diameter of the ring-shaped plate structure 210 enclosed by the segments 200 is larger than that of the flange plate 112, so that the ring-shaped plate structure 210 enclosed by the segments 200 can extend out of the seat assembly 100, and the flange plate 112 is not worn by the rolling portion 220 of the ring-shaped plate structure 210 when the rolling portion rolls the material.

Referring to FIGS. 1-5, the angles of the four segments 200 of the puck are the same. The four fan-shaped blocks 200 have the same angle, so that the four fan-shaped blocks 200 can be used interchangeably, and only the four fan-shaped blocks 200 with the same structure need to be processed during processing, thereby facilitating processing, installation and replacement and having good replaceability. Specifically, the angle of the segment 200 refers to the included angle between two side surfaces of the segment 200, and the two side surfaces refer to surfaces other than arc surfaces.

Specifically, the angle of the segment 200 in this embodiment is 90 °. Conceivably, the pressing wheel can also comprise two segments 200, and the angles of the two segments 200 are the same and are both 180 degrees; or the pinch roller can also comprise three fan-shaped blocks 200, and the angles of the three fan-shaped blocks 200 are the same and are all 120 degrees; when the puck is made up of more than four segments 200, the angles of the segments 200 are the same, i.e., the angle of each segment 200 is 360/number of segments 200.

Referring to fig. 1 to 5, the locking and pressing mechanism 120 includes a locking and pressing plate 121 and a threaded fastener 122, the locking and pressing plate 121 is detachably disposed on the positioning seat 111, the locking and pressing plate 121 and the flange plate 112 are respectively disposed on two opposite sides of the segment 200, and the threaded fastener 122 is used for clamping the locking and pressing plate 121 and the flange plate 112 to fasten the segment 200. When the locking pressing plate 121 is installed on the positioning seat 111, the locking pressing plate 121 and the flange plate 112 are respectively arranged at two opposite sides of the sector 200, when the locking pressing plate 121 and the flange plate 112 are screwed and fixed by the threaded fastener 122, the locking pressing plate 121 and the flange plate 112 have the tendency of approaching each other, and the locking pressing plate and the flange plate abut against the sector 200 in the middle, so that the middle sector 200 is clamped and fixed; when the threaded fasteners 122 are loosened, the lock press plate 121 can be removed from the locating socket 111 so that the segment 200 can be removed. The locking clip 121 and the threaded fastener 122 are arranged in such a way that the structure for the removal and installation of the segments 200 is relatively simple.

Specifically, the locking and pressing plate 121 is provided with a first through hole, the segment 200 is provided with a second through hole, the flange plate 112 is provided with a threaded hole, the threaded fastener 122 passes through the first through hole and the second through hole and is screwed to the threaded hole, and the locking and pressing plate 121 and the segment 200 are locked to the flange plate 112 by the threaded fastener 122. The locking and pressing mode with the structure is relatively simple in structure, the locking and pressing plate 121 and the flange plate 112 are matched to clamp and fix the fan-shaped block 200, and the threaded fastener 122 penetrates through the second through hole of the fan-shaped block 200 to fix the fan-shaped block 200 to a certain extent, so that the locking and pressing effect of the locking and pressing mechanism 120 on the fan-shaped block 200 is relatively good.

Specifically, the threaded fastener 122 in this embodiment is an outer hexagonal screw. It is envisioned that the threaded fastener 122 may also be other structures such as socket head cap screws, countersunk head screws, and other types of screws or bolts. It is envisioned that locking clamp plate 121 and segment 200 could be locked by other means using threaded fasteners 122, such as, for example, providing threaded holes in locking clamp plate 121, providing through holes in segment 200 and flange plate 112, threaded fasteners 122 passing through both through holes and threaded into the threaded holes to lock segments 200, locking clamp plate 121, and flange plate 112 together; or threaded fasteners 122 do not pass through segments 200 and directly lock flange plate 112 to lock plate 121 together; or through holes are formed in the locking pressing plate 121, the sector 200 and the flange plate 112, the threaded fasteners 122 are bolts and nuts, the bolts penetrate through the three through holes and are in threaded connection with the nuts, and the locking pressing plate 121, the sector 200 and the flange plate 112 are locked together, so that the sector 200 can be detachably arranged.

It is contemplated that locking mechanism 120 may be other configurations without limitation to the above embodiments, for example, locking mechanism 120 may comprise screws that directly lock segment 200 to flange plate 112; or the locking and pressing mechanism 120 comprises an elastic clamp and a locking and pressing plate 121, and two free ends of the elastic clamp respectively abut against the locking and pressing plate 121 and the side wall of the flange plate 112, so that the locking and pressing plate 121 and the flange plate 112 are close to each other, and the clamping of the fan-shaped block 200 is realized.

It is contemplated that the base assembly 100 can have other configurations without limitation to the above-described embodiment, for example, the base assembly 100 can include the alignment socket 111 and the threaded fastener 122, and when the segment 200 is disposed on the alignment socket 111, the threaded fastener 122 can be disposed radially toward the alignment socket 111 and can lock the segment 200 to the alignment socket 111.

Referring to fig. 1 to 5, the lock pressing plate 121 is configured as an annular structure, and 28 threaded fasteners 122 are provided on the lock pressing plate 121 at regular intervals around the positioning seat 111. The four fan-shaped blocks 200 are fixed together by the annular locking and pressing plate 121, the locking and pressing precision is relatively good, the fan-shaped blocks 200 are combined to form the annular plate structure 210 and then are locked at one time, and the locking and attaching efficiency is high.

It is understood that the number of the threaded fasteners 122 of the locking mechanism 120 may be other numbers without being limited to the above embodiment, for example, the number of the threaded fasteners 122 is four, eight, etc., and each segment 200 corresponds to the same number of threaded fasteners 122.

Referring to fig. 1 to 5, the main housing 110 is provided with circumferential positioning portions 130 corresponding to the segments 200 one to one, the segments 200 are provided with circumferential engaging portions 230 for engaging with the corresponding circumferential positioning portions 130, and the circumferential positioning portions 130 are used for positioning circumferential positions of the segments 200. Set up circumference cooperation portion 230 and circumference location portion 130, circumference location portion 130 cooperates with circumference cooperation portion 230 for positioning seat 111 and segment 200 can rotate in step through the restriction of circumference location portion 130, and positioning seat 111 and segment 200 installation are more firm, are difficult to take place to deflect.

Referring to fig. 1 to 5, the circumferential positioning part 130 is configured as a bar having a rectangular cross section, and the circumferential engagement part 230 is configured as a rectangular groove. The above-described structure of the circumferential positioning portion 130 allows the coupling effect of the segment 200 and the flange plate 112 to be relatively good. It is conceivable that the circumferential positioning part 130 may be another shape, such as a cylindrical bar or a square bar, and the corresponding circumferential fitting part 230 is correspondingly provided as a groove having the same cross section. It is conceivable that the circumferential positioning part 130 may be a rectangular groove, and the circumferential fitting part 230 may be a rectangular bar.

Specifically, the circumferential engaging portion 230 is a through groove, and when the locking plate 121 is locked on the flange plate 112 by the threaded fastener 122, the locking plate 121 covers one side of the circumferential engaging portion 230 to be open, so as to reduce the risk of disengagement of the circumferential positioning portion 130. Specifically, when the circumferential positioning portion 130 is inserted into the circumferential engagement portion 230, the length of the circumferential positioning portion 130 in the circumferential engagement portion 230 is smaller than the length of the circumferential engagement portion 230.

Specifically, the flange plate 112 is provided with a mounting hole, and the circumferential positioning portion 130 is separately processed and mounted in the mounting hole. It is understood that circumferential locating portion 130 may also be formed as a single piece with flange plate 112. It is conceivable that circumferential positioning portion 130 is provided in segment 200 and circumferential engagement portion 230 is provided in flange plate 112, and in this case, circumferential positioning portion 130 may be formed integrally with segment 200, or a mounting hole may be formed in segment 200, and circumferential positioning portion 130 may be separately machined and mounted in the mounting hole.

Specifically, the circumferential positioning portion 130 is interference-fitted with the circumferential fitting portion 230 of the segment 200, so that the circumferential positioning portion 130 also has a fixing effect on the segment 200.

Specifically, the circumferential positioning portion 130 is also interference-fitted with the mounting hole of the flange plate 112, so that the circumferential positioning portion 130 is not easily loosened after being mounted on the flange plate 112.

Specifically, the circumferential positioning portion 130 is extended in parallel to the axial direction of the rotation shaft of the positioning seat 111, so as to better connect the seat assembly 100 and the segment 200.

Referring to fig. 1 to 5, a circumferential fitting portion 230 is concavely provided on one side of the segment 200 close to the positioning seat 111, and the outer circumferential side of the positioning seat 111 blocks a notch of the circumferential fitting portion 230. The circumferential fitting part 230 of the above structure can be processed more conveniently. Specifically, the sector 200 is processed independently, when the circumferential matching part 230 is processed, only one groove needs to be directly processed on the arc-shaped matching surface, and the difficulty is greatly reduced as compared with the case that the rectangular circumferential matching part 230 is arranged in the middle of the sector 200; after the sector 200 is installed on the positioning seat 111, the circumferential positioning portion 130 is limited by the periphery of the positioning seat 111 and the circumferential fitting portion 230, so that the circumferential positioning portion 130 and the sector 200 are relatively fixed.

Referring to fig. 1 to 5, the locking and pressing mechanism 120 is provided with a radial positioning portion, and the segment 200 is provided with a radial engagement portion 240, and the radial positioning portion is configured to abut against the radial engagement portion 240 and restrict the segment 200 from moving radially outward relative to the positioning socket 111. The radial positioning part and the radial matching part 240 are arranged, so that the risk that the sector 200 is accidentally separated from the base body from the radial direction in the rotating process can be reduced, the relative positioning of the sector 200 and the locking pressure plate 121 can be assisted in the assembling and disassembling process of the sector 200, and the assembling and disassembling of the sector 200 are more convenient.

Specifically, the radial positioning portion is provided on the lock plate 121 of the lock mechanism 120. It is conceivable that the flange plate 112 may be provided with a radial positioning portion, and the segment 200 may be provided with a radial engaging portion 240, which engage with each other, so as to reduce the risk that the segment 200 is accidentally separated from the seat body in the radial direction during the rotation process; or the radial positioning parts are arranged on the locking pressing plate 121 and the flange plate 112 at the same time, the radial matching parts 240 are arranged on two sides of the sector 200 respectively, the radial positioning part of the locking pressing plate 121 is matched with the radial matching part 240 on one side of the sector 200, and the radial positioning part of the flange plate 112 is matched with the radial matching part 240 on the other side of the locking pressing plate 121, so that the risk that the sector 200 is accidentally separated from the seat body in the radial direction in the rotating process can be reduced.

Referring to fig. 1 to 5, the radial positioning portion is configured as a groove, and the radial fitting portion 240 is configured as a protrusion, which is received in the groove. The radial positioning of the sector 200 relative to the positioning seat 111 is realized by the matching of the groove and the bump, the positioning effect is good, and the assembly of the lock pressing plate 121 and the sector 200 is also convenient. Specifically, the radial positioning portion of the locking pressing plate 121 is a groove with an annular structure, the radial matching portion 240 of the fan-shaped blocks 200 is configured as a fan-shaped protruding structure, when the four fan-shaped blocks 200 are connected and enclosed into the annular plate structure 210, the fan-shaped protruding structure surrounds to form an annular protruding structure, so that the radial positioning portion and the radial matching portion 240 can be matched without rotating to a specific position when the locking pressing plate 121 is installed, and therefore the installation and positioning effects are relatively good relative to the radial position of the positioning seat 111 of the limiting fan-shaped block 200. It is conceivable that the radial positioning portion and the radial fitting portion 240 may also be other structures without being limited to the above embodiments, for example, the radial positioning portion is a protrusion, and the radial fitting portion 240 is a groove; or the radial positioning part is a plug hole, the radial matching part 240 is a plug column directly processed on the fan-shaped block 200, and when the locking pressing plate 121 and the fan-shaped block 200 are installed together, the plug column is plugged in the plug hole.

Referring to fig. 1-5, a breakaway drive 300 is also included, the breakaway drive 300 being configured to apply a force that moves the latch plate 121 away from the segment 200. The locking pressing plate 121 of the locking pressing mechanism 120 is large and heavy, and when the locking pressing plate 121 needs to be detached, the locking pressing plate 121 is not easy to separate from the sector 200, the separating driving piece 300 is arranged, so that the locking pressing plate 121 and the sector 200 can be separated more easily, and the difficulty in separating the locking pressing plate 121 from the sector 200 is reduced.

Specifically, the locking pressing plate 121 is provided with a threaded through hole, a hole axis of the threaded through hole is parallel to a hole axis of the inner hole portion, the separation driving member 300 is configured as a threaded pushing member, the threaded pushing member is connected to the threaded through hole in a threaded manner, and one end of the threaded pushing member is opposite to the sector block 200. When the thread pushing piece is rotated until the thread through hole is extended out and one end of the thread pushing piece abuts against the sector 200, the thread pushing piece is continuously rotated, the rotating force is converted into pushing force, the locking pressing plate 121 can be driven to be separated from the sector 200, the separation is relatively easy, and the separation distance is also easy to adjust.

Specifically, the breakaway driver 300 is configured as an external hex screw. It is envisioned that the breakaway drive member 300 may also be other structures, such as a threaded pusher member, for example, a socket head cap screw or a countersunk head screw. It is conceivable that the separation driving member 300 may be other structures without being limited to the above embodiment, such as a wedge with an inclined surface, the wedge is slidably disposed on the locking plate 121, and when the wedge moves, the inclined surface abuts against the locking plate 121 or the segment 200, and the locking plate 121 is lifted up by the inclined surface, so as to separate the locking plate 121 and the segment 200.

Referring to fig. 1-5, in some embodiments, the angle of segment 200 does not exceed 180 °, and the side of segment 200 adjacent to spud 111 is configured as an arcuate mating surface. The sector 200 with the structure enables the sector 200 not to be required to be separated from the positioning seat 111 along the axial direction, but also to be separated from the positioning seat 111 along the radial direction, so that the assembly and disassembly are more convenient, and the assembly and disassembly mode is more flexible.

Referring to FIGS. 1-5, the axis of rotation of the puck is eccentrically disposed. The rotating axis of the pressing wheel is eccentrically arranged, so that the whole pressing effect of the pressing wheel is better, and feeding and adjustment after the pressing wheel is abraded are facilitated. Specifically, the outer periphery of the positioning seat 111 is cylindrical. Specifically, the axis of rotation of the puck is the axis labeled B in FIG. 2.

Referring to fig. 1 to 5, the pressing wheel is further provided with an eccentric shaft sleeve 140, the positioning seat 111 is provided with a central through hole, and the eccentric shaft sleeve 140 penetrates through the central through hole. After the eccentric shaft sleeve 140 is abraded, the eccentric shaft sleeve 140 can be replaced to repair the pressing wheel, and the eccentric shaft sleeve 140 enables the whole pressing wheel to perform eccentric motion. It is understood that the pressing wheel can rotate non-eccentrically when the eccentric bushing 140 is replaced with a non-eccentric bushing.

Referring to fig. 1 to 5, the pressing wheel further includes a sealing cover 150 and a bearing 160, the bearing 160 is located in the central through hole, the outer periphery of the bearing 160 abuts against the hole wall of the central through hole, the eccentric shaft sleeve 140 is inserted into the inner periphery of the bearing 160, one end of the sealing cover 150 is connected with the positioning seat 111, and the other end of the sealing cover 150 is connected with the eccentric shaft sleeve 140. The sealing cover 150 seals the bearing 160 between the eccentric sleeve 140 and the positioning socket 111, and the leakage of the lubricant oil inside the bearing 160 can be reduced.

Specifically, the sealing cover 150 is provided with a first alignment groove, the eccentric shaft sleeve 140 is provided with a second alignment groove, and the first alignment groove and the second alignment groove are communicated. The first aligning groove and the second aligning groove are communicated, that is, the sealing cover 150 and the eccentric sleeve 140 are installed in place, thereby conveniently aligning the sealing cover 150 and the eccentric sleeve 140.

Specifically, a labyrinth seal structure is arranged at the joint of the seal cover 150 and the positioning seat 111. The bearing 160 between the two seal covers 150 is sealed by the labyrinth structure, thereby better reducing the leakage of the lubricating oil. Specifically, the labyrinth seal structure is that a plurality of annular convex plates are arranged on the positioning seat 111 and the sealing cover 150, a spacing cavity is arranged between the annular convex plates, the annular convex plate of the sealing cover 150 is inserted into the spacing cavity of the positioning seat 111, and the annular convex plate of the positioning seat 111 is inserted into the spacing cavity of the sealing cover 150, so that a multi-bending seal structure is formed.

Specifically, the sealing cap 150 is provided with a lubricating oil injection hole. Set up the lubricating oil filling hole, need not to dismantle sealed lid 150 and can carry out the operation of adding lubrication to inside bearing 160, simple structure, the result of use is better relatively.

Specifically, the two sealing covers 150 are disposed at two ends of the positioning seat 111 along the rotation axis, respectively, and two ends of the bearing 160 are both blocked by the sealing covers 150 to contain the lubricating liquid inside.

Referring to fig. 6, the pressing wheel comprises a seat body assembly 100 and four fan-shaped blocks 200; the sector block 200 is arranged on the base assembly 100, the sector block 200 is enclosed to form an annular plate structure 210, a rolling part 220 which is radially protruded relative to the base assembly 100 is arranged on the outer peripheral side of the sector block 200, the outer peripheral surface of the rolling part 220 is enclosed to form a circular ring surface, and the sector block 200 is detachably arranged; the base assembly 100 comprises a main base body 110 and a locking mechanism 120, wherein the main base body 110 is provided with a columnar positioning seat 111, the periphery of the positioning seat 111 is provided with a flange plate 112, the annular plate structure 210 is provided with an inner hole part matched with the positioning seat 111, the annular plate structure 210 is sleeved on the positioning seat 111 through the inner hole part, the locking mechanism 120 is detachably arranged on the positioning seat 111, and the locking mechanism 120 and the flange plate 112 clamp and fix the fan-shaped block 200; the locking and pressing mechanism 120 comprises a locking and pressing plate 121 and a threaded fastener 122, the locking and pressing plate 121 is detachably arranged on the positioning seat 111, the locking and pressing plate 121 and the flange plate 112 are respectively arranged on two opposite sides of the sector 200, and the threaded fastener 122 is used for clamping and fastening the sector 200 by the locking and pressing plate 121 and the flange plate 112; the method of replacing puck segments 200 includes, but is not limited to, the steps of:

s10: removing the threaded fasteners 122;

s20: detaching and separating the locking pressing plate 121 from the segment 200 and the main base 110;

s30: detaching and separating the segment 200 from the main base 110;

s40: mounting the new segment 200 in place of the original segment 200;

s50: covering the locking pressing plate 121 on the segment 200;

s60: locking clamp plate 121 and flange plate 112 are clamped to secure segment 200 with threaded fasteners 122.

Referring to FIG. 7, the puck also includes a breakaway drive 300, the breakaway drive 300 configured to apply a force that moves the latch plate 121 away from the segment 200; the locking pressing plate 121 is provided with a threaded through hole, the hole axis of the threaded through hole is parallel to the hole axis of the inner hole part, the separation driving piece 300 is configured as a threaded pushing piece, the threaded pushing piece is connected to the threaded through hole in a threaded mode, and one end of the threaded pushing piece is opposite to the fan-shaped block 200; the method for replacing the sector 200 of the pinch roller further comprises the following steps:

s21: and rotating the threaded pushing piece to enable one end of the threaded pushing piece to extend out of the threaded through hole and abut against the fan-shaped block 200, so that the locking and pressing plate 121 is separated from the fan-shaped block 200.

Specifically, in the method for replacing the sector 200 of the pressing wheel, the step S21 is not necessary, and the sector 200 and the locking pressing plate 121 can be forcibly separated by direct external force. Firstly, the threaded fastener 122 is detached, and then the lock pressing plate 121 is driven to be separated from the fan-shaped block 200 by using the separating driving piece 300, and the lock pressing plate 121 is taken out; it is also possible to remove lock pressure plate 121 directly and then separate segment 200 from flange plate 112 and remove segment 200. The assembling method of the pressing wheel is matched, so that the sector 200 can be disassembled and replaced, and the pressing wheel can be replaced and maintained.

Specifically, the overall process of disassembling and replacing the segment 200 of the pressing wheel of the embodiment is as follows: the threaded fastener 122 of the locking and pressing mechanism 120 is detached, so that the locking and pressing plate 121 can be separated from the sector 200, then the separation driving piece 300 is used for driving the locking and pressing plate 121 to be separated from the sector 200, the locking and pressing plate 121 is detached and taken out, and then the old sector 200 is detached and separated from the seat body; the new fan-shaped blocks 200 are sequentially placed on the periphery of the positioning seat 111 and located on one side of the flange plate 112, the four fan-shaped blocks 200 are enclosed to form an annular plate structure 210, and in the process that the fan-shaped blocks 200 are placed on the periphery of the positioning seat 111, the circumferential matching portion 230 is in plug-in fit with the circumferential positioning portion 130. Then, locking and pressing plate 121 is used to cover the side of segment 200 far from flange plate 112, threaded fastener 122 is passed through first and second through holes and screwed in the threaded holes, so that locking and pressing plate 121 and flange plate 112 are re-locked, and locking and pressing plate 121 and flange plate 112 are used to clamp and fix new segment 200, thereby realizing replacement of segment 200 of the maintenance press wheel.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.

Claims

1. A puck, comprising:

a seat assembly (100);

the novel seat is characterized by comprising at least two fan-shaped blocks (200), wherein the fan-shaped blocks (200) are arranged on the seat body assembly (100), the fan-shaped blocks (200) are enclosed to form an annular plate structure (210), a roller pressing part (220) protruding in the radial direction relative to the seat body assembly (100) is arranged on the outer peripheral side of each fan-shaped block (200), the outer peripheral surface of each roller pressing part (220) is enclosed to form a circular ring surface, and the fan-shaped blocks (200) are detachably arranged.

2. The puck according to claim 1, wherein: the pedestal subassembly (100) includes main pedestal body (110) and lock pressure mechanism (120), main pedestal body (110) are provided with cylindrical positioning seat (111), the periphery of positioning seat (111) is provided with flange plate (112), annular plate structure (210) have with the interior hole portion of positioning seat (111) adaptation, annular plate structure (210) pass through interior hole portion cover is located positioning seat (111), lock pressure mechanism (120) detachably set up in positioning seat (111), lock pressure mechanism (120) with flange plate (112) centre gripping is fixed sector block (200).

3. The puck according to claim 2, wherein: the locking and pressing mechanism (120) comprises a locking pressing plate (121) and a threaded fastener (122), the locking pressing plate (121) is detachably arranged on the positioning seat (111), the locking pressing plate (121) and the flange plate (112) are respectively arranged on two opposite sides of the sector block (200), and the threaded fastener (122) is used for clamping and fastening the locking pressing plate (121) and the flange plate (112) to the sector block (200).

4. The puck according to claim 2, wherein: the main base body (110) is provided with circumferential positioning portions (130) corresponding to the fan-shaped blocks (200) one by one, the fan-shaped blocks (200) are provided with circumferential matching portions (230) matched with the corresponding circumferential positioning portions (130), and the circumferential positioning portions (130) are used for positioning the circumferential positions of the fan-shaped blocks (200).

5. The puck according to claim 2, wherein: the locking and pressing mechanism (120) and/or the flange plate (112) are/is provided with a radial positioning portion, the fan-shaped block (200) is provided with a radial matching portion (240), and the radial positioning portion is used for being abutted against the radial matching portion (240) and limiting the fan-shaped block (200) to move outwards in the radial direction relative to the positioning seat (111).

6. The puck according to claim 3, wherein: further comprising a release drive (300), the release drive (300) being configured to be able to apply a force that moves the lock pressure plate (121) away from the segment (200).

7. The puck according to claim 6, wherein: the lock pressing plate (121) is provided with a threaded through hole, the hole axis of the threaded through hole is parallel to the hole axis of the inner hole portion, the separation driving piece (300) is configured to be a threaded pushing piece, the threaded pushing piece is in threaded connection with the threaded through hole, and one end of the threaded pushing piece is opposite to the fan-shaped block (200).

8. The puck according to claim 1, wherein: the four fan-shaped blocks (200) are arranged, and the angles of the four fan-shaped blocks (200) are the same.

9. A method of replacing segments of a puck having a base assembly (100) and at least two segments (200); the fan-shaped block (200) is arranged on the base body assembly (100), the fan-shaped block (200) is enclosed to form an annular plate structure (210), a roller pressing part (220) which protrudes in the radial direction relative to the base body assembly (100) is arranged on the outer peripheral side of the fan-shaped block (200), the outer peripheral surface of the roller pressing part (220) is enclosed to form a circular ring surface, and the fan-shaped block (200) is detachably arranged; the base body assembly (100) comprises a main base body (110) and a locking and pressing mechanism (120), wherein the main base body (110) is provided with a columnar positioning seat (111), a flange plate (112) is arranged on the periphery of the positioning seat (111), the annular plate structure (210) is provided with an inner hole part matched with the positioning seat (111), the annular plate structure (210) is sleeved on the positioning seat (111) through the inner hole part, the locking and pressing mechanism (120) is detachably arranged on the positioning seat (111), and the locking and pressing mechanism (120) and the flange plate (112) clamp and fix the fan-shaped block (200); the locking and pressing mechanism (120) comprises a locking and pressing plate (121) and a threaded fastener (122), the locking and pressing plate (121) is detachably arranged on the positioning seat (111), the locking and pressing plate (121) and the flange plate (112) are respectively arranged on two opposite sides of the segment (200), and the threaded fastener (122) is used for clamping and fastening the segment (200) by the locking and pressing plate (121) and the flange plate (112); the method for replacing the sector of the pinch roller is characterized by comprising the following steps:

-removing the threaded fastener (122);

detaching and separating the lock pressure plate (121) from the sector (200) and the main holder body (110);

detaching the fan-shaped block (200) from the main base body (110);

-mounting a new sector (200) alternatively in the position of the original sector (200);

covering the locking pressing plate (121) on the fan-shaped block (200);

and clamping and fastening the lock pressing plate (121) and the flange plate (112) by using the threaded fastener (122) to the fan-shaped block (200).

10. The method for replacing a sector of a press wheel according to claim 9, said press wheel further comprising a release actuator (300), said release actuator (300) being configured to apply a force that moves said lock pressure plate (121) away from said sector (200); the lock pressing plate (121) is provided with a threaded through hole, the hole axis of the threaded through hole is parallel to the hole axis of the inner hole part, the separation driving piece (300) is configured to be a threaded pushing piece, the threaded pushing piece is in threaded connection with the threaded through hole, and one end of the threaded pushing piece is opposite to the fan-shaped block (200); the method for detaching and separating the lock pressure plate (121) from the sector (200) and the main base body (110) is characterized by comprising the following steps:

and rotating the threaded pushing piece to extend one end of the threaded pushing piece out of the threaded through hole and push against the fan-shaped block (200), so that the locking pressing plate (121) is separated from the fan-shaped block (200).