Paper pressing roller

Abstract

The utility model belongs to the technical field of papermaking instruments, and particularly relates to a paper pressing roller which comprises a base, a paper pressing plate and a paper pressing plate, a platen roller body; each supporting unit comprises a hydraulic cylinder, a connector, a sector gear, a rack, an upper limiting piece, a lower limiting piece, a mounting frame, a supporting seat and a fulcrum bolt, the mounting frame, the supporting seat and the hydraulic cylinder are arranged on the base, the piston end of the hydraulic cylinder is fixedly connected with the connector, the rack is in sliding connection with the mounting frame, and the sector gear is arranged on the supporting seat. One end of the sector gear is meshed with the rack, the other end of the sector gear is rotatably connected with the connector, the fulcrum bolt penetrates through the sector gear and is fixedly connected with the mounting frame, the upper limiting piece is fixed to the bottom of the rack, a groove is formed in the top of the supporting seat, and the lower limiting piece is fixed in the groove. A rotating shaft of the paper pressing roller body is arranged between the upper limiting piece and the lower limiting piece. The paper pressing roller is convenient to disassemble and short in consumed time.

Description

Technical Field

[0001] The utility model belongs to the technical field of papermaking equipment, and particularly relates to a paper pressing roller. Background Art

[0002] As a commonly used equipment in the papermaking industry, the press roller usually suffers from wear problems during operation. For example, the bearing of the press roller may break due to long-term wear. Therefore, the press roller needs to be inspected and repaired regularly. However, the existing press roller bearing disassembly is relatively cumbersome, resulting in a long time for press roller disassembly and reduced production efficiency. Utility Model Content

[0003] The purpose of the present invention is to solve the problem of time-consuming disassembly of the paper pressing roller described in the background art, and to propose a new paper pressing roller that can be quickly disassembled.

[0004] A technical solution adopted to achieve the above-mentioned purpose is a paper pressing roller, which comprises:

[0005] base;

[0006] The platen roller body;

[0007] Two supporting units, the supporting units include a hydraulic cylinder, a connecting head, a sector gear, a rack, an upper limit piece, a lower limit piece, a mounting bracket, a support seat and a fulcrum bolt. The mounting bracket, the support seat and the hydraulic cylinder are arranged on a base. The piston end of the hydraulic cylinder is fixedly connected to the connecting head. The rack is slidably connected to the mounting bracket. One end of the sector gear is meshed with the rack. The other end of the sector gear is rotatably connected to the connecting head. The fulcrum bolt passes through the sector gear and is fixedly connected to the mounting bracket. The upper limit piece is fixed to the bottom of the rack. A groove is provided on the top of the support seat. The lower limit piece is fixed in the groove.

[0008] The rotating shaft of the paper pressing roller body is arranged between the upper limit member and the lower limit member.

[0009] In the above technical solution, a hydraulic cylinder can be used to control the upward or downward movement of the hydraulic cylinder piston to drive the sector gear to rotate relative to the fulcrum bolt, thereby driving the rack engaged with the sector gear to move, thereby achieving the purpose of controlling the upper limit member to move upward, separating the upper limit member and the lower limit member, and realizing the rapid disassembly of the paper pressing roller.

[0010] Furthermore, the upper limit member and the lower limit member have the same shape, and the upper limit member and the lower limit member are arc-shaped.

[0011] In the above technical solution, the upper and lower limiting members are two symmetrically arranged semicircular arcs, and the rotating shaft of the paper pressing roller is installed between the two semicircular arcs to play a supporting role.

[0012] Furthermore, the upper limit member includes a base and a plurality of balls. The base is provided with a plurality of limit grooves, and each of the plurality of limit grooves is provided with a ball.

[0013] In the above technical solution, the ball bearings are used to reduce the friction between the rotating shaft of the paper pressing roller and the upper and lower limit members, so that the paper pressing roller can rotate smoothly.

[0014] Furthermore, the opening diameter of the limiting groove is smaller than the diameter of the ball.

[0015] Furthermore, the upper limit member further includes two gaskets, and the two gaskets are respectively fixed to the two ends of the base.

[0016] In the above technical solution, the gasket starts the buffering function to prevent the upper limit member from being pressed down too quickly, which would cause deformation of the component.

[0017] Furthermore, the fulcrum bolt is located in the middle of the sector gear, and the sector gear and the fulcrum bolt are rotatably connected.

[0018] In the above technical solution, the sector gear can rotate with the fulcrum bolt as the center point, driving the rack to move up and down.

[0019] Furthermore, the upper limit member is located directly above the lower limit member.

[0020] Furthermore, the two support units are symmetrically arranged at both ends of the paper pressing roller body.

[0021] The advantages of the present invention are:

[0022] 1. The utility model supports the paper pressing roller body through two symmetrically arranged support units, so that the paper pressing roller body can rotate freely. The support unit controls the rotation of the sector gear through the hydraulic cylinder, drives the rack to press down, so that the upper limit part and the lower limit part are fitted together to limit the paper pressing roller body. By reverse operation, the rack is moved up, the upper limit part is separated from the lower limit part, and the paper pressing roller body is disassembled, thereby achieving quick disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0024] Figure 1 This is a structural diagram of the paper pressing roller of the utility model;

[0025] Figure 2This is a schematic structural diagram of the support unit of the utility model;

[0026] Figure 3 This is a structural diagram of the upper limit member of the utility model.

[0027] Illustrations: 1. Base, 2. Paper pressing roller body, 3. Support unit, 301. Hydraulic cylinder, 302. Connector, 303. Sector gear, 304. Rack, 305. Upper limit member, 306. Lower limit member, 307. Mounting frame, 308. Support seat, 309. Fulcrum bolt, 310. Base, 311. Ball bearing, 312. Limiting groove, 313. Gasket. DETAILED DESCRIPTION

[0028] In order to enable people in this technical field to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in combination with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only an embodiment of a part of the utility model rather than all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work belong to the scope of protection of the utility model.

[0029] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do 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 therefore should not be understood as a limitation on the present invention.

[0030] like Figure 1 As shown, a paper pressing roller is composed of a base 1, a paper pressing roller body 2 and two supporting units 3.

[0031] like Figure 2As shown, the support unit consists of a hydraulic cylinder 301, a connecting head 302, a sector gear 303, a rack 304, an upper limit piece 305, a lower limit piece 306, a mounting frame 307, a support seat 308 and a fulcrum bolt 309, wherein the mounting frame, the support seat and the hydraulic cylinder are arranged on the base, the connecting head is fixed to the piston end of the hydraulic cylinder, a slide bar is provided on the left side of the rack, and a corresponding slide rail is provided on the mounting frame. The rack is slidably connected to the mounting frame, the left end of the sector gear is the functional part and meshes with the right side of the rack, the right end of the sector gear is rotatably connected to the connecting head, the fulcrum bolt passes through the sector gear and is fixedly connected to the mounting frame, the upper limit piece is fixed to the bottom of the rack, a groove is provided on the top of the support seat, the lower limit piece is fixed in the groove, and the rotating shaft of the paper pressing roller body is arranged between the upper limit piece and the lower limit piece.

[0032] In one embodiment, the upper limit member and the lower limit member have the same shape, and both the upper limit member and the lower limit member are semicircular arc-shaped.

[0033] In one embodiment, if Figure 3 As shown, the upper limit member and the lower limit member are both composed of a base 310 and a plurality of balls, wherein a plurality of limit grooves 312 are opened inside the base, each of which is provided with a ball, and the ball can rotate freely in the limit groove.

[0034] In one embodiment, the opening diameter of the limiting groove is smaller than the diameter of the ball, and the ball is limited in the limiting groove.

[0035] In one embodiment, a gasket is provided at both ends of the upper limit member and the lower limit member, and the gasket can be a rubber gasket.

[0036] In one embodiment, the fulcrum bolt is located in the middle of the sector gear, and the sector gear is rotatably connected to the fulcrum bolt. The fulcrum bolt serves as the fulcrum of the sector gear. When the hydraulic cylinder pushes and pulls the piston, the sector gear rotates with the fulcrum bolt as the origin.

[0037] In one embodiment, the upper limit member is located directly above the lower limit member, and two ends of the upper limit member can fit with two ends of the lower limit member to limit the paper pressing roller body therebetween.

[0038] In one embodiment, the two support units are symmetrically arranged at two ends of the paper pressing roller body.

[0039] The working principle and process of this utility model:

[0040] During normal operation, the ends of the upper limit member and the lower limit member are respectively butted against each other, and the rotating shafts at both ends of the paper pressing roller body are limited between the upper limit member and the lower limit member, and the paper pressing roller body can rotate freely.

[0041] When the paper pressing roller needs to be removed, start the hydraulic cylinder, the hydraulic cylinder piston moves downward, the connecting head moves downward accordingly, the right end of the sector gear is pulled downward by the connecting head, and the left end of the sector gear rotates clockwise, driving the rack to move upward, the upper limit part and the lower limit part are separated, and the paper pressing roller body can be taken out using an external tool.

[0042] Finally, it should be noted that the present embodiment is intended only to illustrate the present invention and does not limit the scope of the present invention. In addition, it should be understood that after reading the contents of the present invention, those skilled in the art may make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims of this application.

Claims

1. A paper pressing roller, characterized in that: The pressing roller comprises: Base (1); Pressure roller body (2); Two support units (3), the support units include a hydraulic cylinder (301), a connecting head (302), a sector gear (303), a rack (304), an upper limit member (305), a lower limit member (306), a mounting frame (307), a support seat (308) and a fulcrum bolt (309), the mounting frame, the support seat and the hydraulic cylinder are arranged on a base, the piston end of the hydraulic cylinder is fixedly connected to the connecting head, the rack is slidably connected to the mounting frame, one end of the sector gear is engaged with the rack, and the other end of the sector gear is rotatably connected to the connecting head, the fulcrum bolt passes through the sector gear and is fixedly connected to the mounting frame, the upper limit member is fixed to the bottom of the rack, the top of the support seat is provided with a groove, and the lower limit member is fixed in the groove, The rotating shaft of the paper pressing roller body is arranged between the upper limit member and the lower limit member.

2. The paper pressing roller according to claim 1, wherein: The upper limit member and the lower limit member have the same shape, and are arc-shaped.

3. The paper pressing roller according to claim 2, wherein: The upper limit member comprises a base (310) and a plurality of balls (311); the base is provided with a plurality of limit grooves (312); and each of the plurality of limit grooves is provided with a ball.

4. The paper pressing roller according to claim 3, wherein: The opening diameter of the limiting groove is smaller than the diameter of the ball.

5. The paper pressing roller according to claim 3, wherein: The upper limit member further comprises two gaskets (313), which are respectively fixed to the two ends of the base.

6. The paper pressing roller according to claim 1, wherein: The fulcrum bolt is located in the middle of the sector gear, and the sector gear is rotatably connected to the fulcrum bolt.

7. The paper pressing roller according to claim 1, wherein: The upper limit member is located directly above the lower limit member.

8. The paper pressing roller according to claim 1, wherein: The two supporting units are symmetrically arranged at two ends of the paper pressing roller body.

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