A pressure roller with good lubrication effect

Abstract

The present invention discloses a pressure roller with good lubrication effect, comprising a pressure roller body, two ends of the pressure roller body are connected to one end of a shaft body, the shaft body is coaxially arranged with the pressure roller body, the shaft body is rotatably connected to the bearing seat through a bearing, and the two ends of the bearing seat are respectively fixedly connected with an outer end cover and an inner end cover by bolts; the other end of the shaft body is provided with a blind hole coaxially arranged therewith, and the two ends of the blind hole are respectively located on both sides of the bearing; an oil guide structure is installed in the blind hole; at the same time, an oil storage cavity is formed between the other end of the oil guide structure and the bottom of the blind hole; a lubricating oil discharge hole A is provided on the outer surface of the shaft body corresponding to the oil storage cavity. The present invention can facilitate the grease application on both sides of the bearing of the pressure roller, ensure the sufficiency of the grease in the bearing, and reduce the difficulty of replenishing the grease, thereby ensuring the lubrication effect; the present invention can also utilize the setting of an oil equalizer to store a part of the lubricating oil and evenly apply the grease on the outer side.

Description

Technical Field

[0001] The invention relates to a pressing roller, in particular to a pressing roller with good lubrication effect. Background Art

[0002] The pressure roller is a device that can evenly press the extruded or calendered film onto the substrate. In extrusion coating and calender coating, it is a rubber roller used in combination with a cooling roller and a calendering roller respectively. During the use of the current pressure roller, the shafts at both ends of the roller will be subjected to greater pressure, that is, between the shaft and the bearing, so sufficient grease needs to be provided to ensure the stable operation of the pressure roller.

[0003] In order to ensure the long-term and stable operation of the roller, the bearing assembly needs to be regularly lubricated. The general lubrication method is to open the end cover and apply grease to the bearing manually. However, due to the poor fluidity of grease, it is often unable to flow quickly and fully to fill the entire bearing after lubricating one side of the bearing. Although lubricating from both sides can improve the lubrication effect, it is more troublesome to lubricate from the inside. Summary of the invention

[0004] The object of the present invention is to provide a pressure roller with good lubrication effect to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A pressure roller with good lubrication effect comprises a pressure roller body, wherein two ends of the pressure roller body are connected to one end of a shaft body, the shaft body and the pressure roller body are coaxially arranged, the shaft body is rotatably connected to a bearing seat through a bearing, and the two ends of the bearing seat are respectively fixedly connected to an outer end cover and an inner end cover through bolts; the other end of the shaft body is provided with a blind hole coaxially arranged therewith, and the two ends of the blind hole are respectively located on both sides of the bearing; an oil guide structure is installed in the blind hole, and the outer diameter of the oil guide structure is equal to the inner diameter of the blind hole; at the same time, an oil storage cavity is formed between the other end of the oil guide structure and the bottom of the blind hole; a lubricating oil discharge hole A is provided on the outer surface of the shaft body corresponding to the oil storage cavity, and at the same time, the ... A centrifugal disc is sleeved on the shaft surface corresponding to the discharge hole A, and a positioning ring is integrally formed on the side of the centrifugal disc facing the inner end cover. The inner diameter of the center hole of the centrifugal disc and the inner diameter of the positioning ring are equal to the outer diameter of the shaft, and the positioning ring is fixedly connected to the surface of the shaft by screws, and the interior of the centrifugal disc is a hollow structure. A through groove connected to the hollow structure inside the centrifugal disc is provided on the wall of the center hole of the centrifugal disc, and the position of the through groove corresponds to the position of the lubricating oil discharge hole A, so that the lubricating grease thrown out by the centrifugal force can enter the hollow structure, and a lubricating oil discharge hole B is provided near the edge of the side of the centrifugal disc facing the bearing, and the lubricating oil discharge hole B is directly opposite to the roller position of the bearing and is connected to the hollow structure.

[0007] As a further solution of the present invention: an oil equalizer is installed on the outer surface of one end of the oil guide structure facing the outer end cover by means of screws.

[0008] As a further solution of the present invention: the main body of the oil guide structure is a stainless steel cylindrical structure and its inner wall is formed with spiral blades; the spiral direction of the spiral blades on the inner wall of the oil guide structure is consistent with the rotation direction of the pressure roller body.

[0009] As a further solution of the present invention: the outer diameter of the positioning ring is equal to the diameter of the through hole opened in the middle of the inner end cover, a sealing ring is arranged between the outer surface of the positioning ring and the through hole of the inner end cover, and the sealing ring is stuck in the groove processed on the outer surface of the positioning ring.

[0010] As a further solution of the present invention: the oil equalizer is mainly composed of a clamping ring and a scraper, the surface of the clamping ring is vertically connected to one end of the scraper, the middle of the scraper is recessed toward the outer end cover, and one side of the scraper is arranged in contact with the end surface of the bearing.

[0011] A rubber layer is bonded on the concave inner wall of the scraper facing the bearing, and a brush is connected to the rubber layer.

[0012] As a further solution of the present invention: a threaded through hole is provided on the outer surface of the retaining ring and is locked on the oil guide structure by screws, and another threaded through hole is also provided on the end of the retaining ring and is fixedly connected to the end of the shaft body by bolts, thereby achieving fixation of the equalizer and the oil guide structure.

[0013] As a further solution of the present invention: the pressure roller body is mainly composed of a hollow roller and sealing end covers at both ends of the roller that are fixedly connected by bolts, and a shaft body is integrally formed at the center of the sealing end cover.

[0014] As a further solution of the present invention: the surface of the sealing end cover around the shaft body is formed with spoiler blades.

[0015] As a further solution of the present invention: a coiled copper tube is arranged inside the hollow roller, and the copper tube is arranged in contact with the inner wall of the hollow roller. At the same time, the two ends of the copper tube are welded to the two ports of the three-way copper tube, and the other port of the three-way copper tube is threadedly connected to one end of a copper rod. The copper rod is located at the bottom of the blind hole of the shaft body and is connected to the copper baffle.

[0016] Compared with the prior art, the present invention has the following beneficial effects: the present invention can conveniently apply grease to both sides of the bearing of the pressure roller, ensure that the bearing has sufficient grease, and reduce the difficulty of adding grease, thereby ensuring the lubrication effect; the present invention can also use the setting of the oil equalizer to store a part of the lubricating oil and evenly apply the outer grease. The present invention also proposes a structure for auxiliary heat dissipation, which assists in reducing the bearing temperature and promotes the lubrication effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The figure is a schematic diagram of the structure of a pressure roller with good lubrication effect.

[0018] Figure 2 The schematic diagram is a structural diagram of an oil equalizer in a pressure roller with good lubrication effect.

[0019] Figure 3 The present invention is another structural schematic diagram of a pressure roller body in a pressure roller with good lubrication effect.

[0020] Figure 4 The present invention is a schematic diagram of the structure of a sealing end cover in a pressure roller with good lubrication effect.

[0021] In the figure: roller body 1, positioning ring 2, lubricating oil discharge hole A3, shaft 4, bearing seat 5, bearing 6, oil equalizer 7, outer end cover 8, spiral blade 9, oil guide structure 10, lubricating oil discharge hole B11, centrifugal disc 12, inner end cover 13, retaining ring 14, scraper 15, hollow roller 16, sealing end cover 17, spoiler blade 18, copper baffle 19, copper rod 20, three-way copper tube 21, copper tube 22. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] Example 1

[0024] See also Figures 1-2 In an embodiment of the present invention, a pressure roller with good lubrication effect includes a pressure roller body 1, and two ends of the pressure roller body 1 are connected to one end of a shaft body 4, and the shaft body 4 can be formed by integral molding with the pressure roller body 1, or can be formed separately by assembly. The shaft body 4 is coaxially arranged with the pressure roller body 1, and the shaft body is rotatably connected to the bearing seat 5 through a bearing 6, and the bearing seat 5 is used to be fixedly connected to a frame for a pressing operation, so that the pressure roller can act on the working surface;

[0025] The two ends of the bearing seat 5 are respectively fixedly connected with an outer end cover 8 and an inner end cover 13 by bolts, wherein the outer end cover 8 is located on the side away from the roller body 1, and a through hole is opened in the middle of the inner end cover 13 for the shaft to pass through, and the bearings in the bearing seat are protected by the end covers and the lubricating grease is prevented from overflowing.

[0026] The other end of the shaft body 4 is provided with a blind hole coaxially arranged therewith, and the two ends of the blind hole are respectively located on both sides of the bearing, that is, the depth of the blind hole is selected according to the width of the step bearing to meet the above requirements, so as to ensure that the lubricating grease cooperates with the subsequent structure to achieve uniform lubrication; an oil guide structure 10 is installed in the blind hole, the main body of the oil guide structure 10 is a stainless steel cylindrical structure and its inner wall is formed with spiral blades 9, and the outer diameter of the oil guide structure 10 is equal to the inner diameter of the blind hole; during actual installation, an oil equalizer 7 is installed on the outer surface of one end of the oil guide structure 10 facing the outer end cover 8 by screws, and an oil storage cavity is formed between the other end of the oil guide structure 10 and the bottom of the blind hole, and the spiral direction of the spiral blades 9 on the inner wall of the oil guide structure 10 is consistent with the rotation direction of the roller body 1, so that the grease inserted from one end of the oil guide structure 10 can slowly slide into the oil storage cavity under the action of rotation and centrifugation, and the purpose of the spiral blades 9 is also to limit the grease in the oil storage cavity from being thrown out.

[0027] The outer surface of the shaft body 4 corresponding to the oil storage cavity is provided with a lubricating oil discharge hole A3, and the surface of the shaft body 4 corresponding to the lubricating oil discharge hole A3 is sleeved with a centrifugal disc 12, and a positioning ring 2 is integrally formed on the side of the centrifugal disc 12 facing the inner end cover 13. The inner diameter of the center hole of the centrifugal disc 12 and the inner diameter of the positioning ring 2 are both equal to the outer diameter of the shaft body, and the positioning ring 2 is fixedly connected to the surface of the shaft body 4 by screws, and the interior of the centrifugal disc 12 is a hollow structure, and a through groove connected to the hollow structure inside the centrifugal disc 12 is provided on the wall of the center hole of the centrifugal disc 12, and the position of the through groove corresponds to the position of the lubricating oil discharge hole A3, so that the lubricating grease thrown out by the centrifugal force can enter the hollow structure, and a lubricating oil discharge hole B11 is provided on the side of the centrifugal disc 12 facing the bearing near the edge, and the lubricating oil discharge hole B11 is opposite to the roller position of the bearing and is connected to the hollow structure, so that the centrifugal force squeezes the grease so that it can eventually flow out and act on the inner side of the bearing, thereby saving the operator from adding grease to the inner side of the bearing.

[0028] The outer diameter of the positioning ring 2 is equal to the diameter of the through hole opened in the middle of the inner end cover 13. During actual processing, the outer diameter of the positioning ring 2 is slightly larger than the diameter of the through hole in the middle of the inner end cover. A sealing ring is arranged between the outer surface of the positioning ring 2 and the through hole of the inner end cover 13. The sealing ring is stuck in the groove processed on the outer surface of the positioning ring 2 to ensure sealing.

[0029] During the actual installation, in order to ensure that the grease can smoothly contact the side of the bearing facing the roller body 1, it is necessary to adjust the positioning ring 2 so that the surface of the centrifugal disk 12 is less than 5 mm from the bearing, that is, the slight swing error of the bearing cannot touch the centrifugal disk, and then tighten the positioning screws on the positioning ring 2 to position it; and during the operation, the entire centrifugal disk can rotate with the shaft of the roller body, so that the grease entering the centrifugal disk is evenly distributed and finally squeezed out by the centrifugal force to evenly act on the surface of the bearing.

[0030] The oil equalizer 7 is mainly composed of a retaining ring 14 and a scraper 15. The surface of the retaining ring 14 is vertically connected to one end of the scraper 15. The middle part of the scraper 15 is recessed toward the outer end cover. At the same time, one side of the scraper is arranged in contact with the end face of the bearing. A rubber layer is bonded to the inner wall of the recess of the scraper 15 facing the bearing, and a brush is connected to the rubber layer. The scraper can scrape out the lubricating grease overflowing from the roller to both sides and concentrate it in the recess. After a certain degree of concentration, it can react to the bearing; it can also assist in flattening the lubricating grease on the outward side of the bearing; a threaded through hole is provided on the outer surface of the retaining ring 14 and is locked on the oil guide structure 10 by screws, and another threaded through hole is also provided at the end of the retaining ring 14 and is fixedly connected to the end of the shaft body 4 by bolts, thereby realizing the fixation of the equalizer and the oil guide structure 10.

[0031] Example 2

[0032] See also Figure 3-4 The roller body 1 is mainly composed of a hollow roller 16 and sealing end covers 17 fixedly connected at both ends by bolts. The center of the sealing end cover 17 is integrally formed with a shaft body 4, and the surface of the sealing end cover 17 around the shaft body 4 is formed with spoiler blades 18; so that the roller body 1 can promote the air flow movement at both ends during the rotation process, thereby promoting heat dissipation, especially heat dissipation at the bearings.

[0033] The hollow roller 16 is provided with a coiled copper tube 22, which is in contact with the inner wall of the hollow roller 16. At the same time, the two ends of the copper tube 22 are welded to the two ports of the three-way copper tube 21, and the other port of the three-way copper tube 21 is threaded.

[0034] One end of the copper rod 20 is connected, and the copper rod 20 is located at the bottom of the blind hole of the shaft body 4 and is connected to the copper baffle 19; the copper tube 20 is used to achieve uniform heat, and when pressing a hot workpiece, heat can be transferred to the shaft body, which promotes the temperature rise of the grease and improves its fluidity, especially when applying grease for the first time in winter and replenishing grease during maintenance, which can quickly promote the grease to enter the bearing; and when cold pressing, it can also promote the cooling of the bearing, but when cold pressing, it is necessary to apply the lubricating oil manually and evenly, and then the above structure is used to assist in maintaining a good lubrication effect.

[0035] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0036] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A pressure roller with good lubrication effect, comprising a pressure roller body (1), wherein the two ends of the pressure roller body (1) are connected to one end of a shaft body (4), the shaft body (4) and the pressure roller body (1) are coaxially arranged, the shaft body is rotatably connected to a bearing seat (5) through a bearing (6), and the two ends of the bearing seat (5) are respectively fixedly connected to an outer end cover (8) and an inner end cover (13) by bolts, characterized in that The other end of the shaft body (4) is provided with a blind hole coaxially arranged therewith, and the two ends of the blind hole are respectively located on both sides of the bearing; an oil guide structure (10) is installed in the blind hole, and the outer diameter of the oil guide structure (10) is equal to the inner diameter of the blind hole; at the same time, an oil storage cavity is formed between the other end of the oil guide structure (10) and the bottom of the blind hole; the outer surface of the shaft body (4) corresponding to the oil storage cavity is provided with a lubricating oil discharge hole A (3), and at the same time, the surface of the shaft body (4) corresponding to the lubricating oil discharge hole A (3) is sleeved with a centrifugal disc (12), and a positioning ring (2) is integrally formed and processed on the side of the centrifugal disc (12) facing the inner end cover (13), and the centrifugal disc ( The inner diameter of the center hole of the centrifugal disc (12) and the inner diameter of the positioning ring (2) are both equal to the outer diameter of the shaft body, the positioning ring (2) is fixedly connected to the surface of the shaft body (4) by screws, and the interior of the centrifugal disc (12) is a hollow structure, a through groove connected to the hollow structure inside the centrifugal disc (12) is provided on the wall of the center hole of the centrifugal disc (12), and the position of the through groove corresponds to the position of the lubricating oil discharge hole A (3), so that the lubricating grease thrown out by the centrifugal force can enter the hollow structure, and a lubricating oil discharge hole B (11) is provided near the edge of one side of the centrifugal disc (12) facing the bearing, and the lubricating oil discharge hole B (11) is directly opposite to the roller position of the bearing and is connected to the hollow structure; An oil equalizer (7) is mounted on the outer surface of one end of the oil guide structure (10) facing the outer end cover (8) via screws; The oil equalizer (7) is mainly composed of a clamping ring (14) and a scraper (15), the surface of the clamping ring (14) is vertically connected to one end of the scraper (15), the middle part of the scraper (15) is recessed toward the outer end cover, and one side of the scraper is arranged in contact with the end surface of the bearing, and a rubber layer is bonded to the inner wall of the recess of the scraper (15) facing the bearing, and a brush is connected to the rubber layer; The pressure roller body (1) is mainly composed of a hollow roller (16) and a sealing end cover (17) fixedly connected at both ends by bolts, and a shaft body (4) is integrally formed at the center of the sealing end cover (17); A coiled copper tube (22) is arranged inside the hollow roller (16), and the copper tube (22) is arranged in contact with the inner wall of the hollow roller (16). At the same time, the two ends of the copper tube (22) are welded to the two ends of the three-way copper tube (21), and one end of the copper rod (20) is threadedly connected to the other end of the three-way copper tube (21). The copper rod (20) is located at the bottom of the blind hole of the shaft body (4) and is connected to the copper baffle (19).

2. A pressure roller with good lubrication effect according to claim 1, characterized in that: The main body of the oil guide structure (10) is a stainless steel cylindrical structure and its inner wall is formed with spiral blades (9); the spiral direction of the spiral blades (9) on the inner wall of the oil guide structure (10) is consistent with the rotation direction of the pressure roller body (1).

3. A pressure roller with good lubrication effect according to claim 1, characterized in that: The outer diameter of the positioning ring (2) is equal to the diameter of the through hole opened in the middle of the inner end cover (13). A sealing ring is arranged between the outer surface of the positioning ring (2) and the through hole of the inner end cover (13), and the sealing ring is clamped in a groove processed on the outer surface of the positioning ring (2).

4. A pressure roller with good lubrication effect according to claim 1, characterized in that: The outer surface of the clamping ring (14) is provided with a threaded through hole and is screwed to the oil guide structure (10), while the end of the clamping ring (14) is also provided with another threaded through hole and is fixedly connected to the end of the shaft body (4) by bolts, thereby achieving the fixation of the equalizer and the oil guide structure (10).

5. A pressure roller with good lubrication effect according to claim 1, characterized in that: The surface of the sealing end cover (17) around the shaft body (4) is formed with spoiler blades (18).

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