Polyurethane roller convenient to disassemble

Abstract

The utility model discloses a polyurethane roller convenient to disassemble, which belongs to the field of polyurethane rollers and is characterized in that a raised line is arranged in a shaft of a first half shaft, a sliding chute is arranged at the lower end of the raised line, a sliding block is arranged in a shaft of a second half shaft, and the sliding block is embedded into the sliding chute, so that the limiting movement of the second half shaft and the first half shaft is realized; threaded parts are arranged on the side walls of the first half shaft and the second half shaft, limiting connecting sleeves are arranged at the threaded parts in a sleeving mode, and a plurality of balls are embedded into the end faces of the limiting connecting sleeves and make contact with the roller bodies to achieve friction reducing operation. The polyurethane roller is good in wear resistance and elasticity, friction is reduced, the service life is prolonged, and efficiency is improved. Due to the design, operation is more stable, and noise and vibration are reduced. The quick-release roller connecting shaft is simplified in disassembly and assembly, a user can operate easily and quickly, and complex tools are not needed. The efficiency is improved and the maintenance cost is reduced. The design enhances the structural stability and the limiting effect of the roller, ensures stable and accurate connection, prevents loosening and deviation in operation, and improves the working precision and reliability.

Description

Technical Field

[0001] This utility model relates to the field of polyurethane rollers, and in particular to a polyurethane roller that is easy to disassemble. Background Technology

[0002] Polyurethane rollers are roller products that combine the excellent properties of polyurethane materials. They typically consist of a metal core and a polyurethane rubber layer. The polyurethane rubber layer is sintered or pressed onto the outer periphery of the metal core using a special process, forming a high-strength rubber-coated roller. The roller may have through holes on its side for easy assembly with a retaining ring and shaft.

[0003] In the actual maintenance of polyurethane rollers, there are situations where the connecting shaft must be removed before the roller body can be taken out. The disassembly process of the connecting shaft is indeed quite cumbersome, time-consuming, and labor-intensive. Traditional disassembly methods may include hammering or heat disassembly, but these methods often easily damage the roller or connecting shaft and are inefficient. For example, while hammering is simple to operate, the point of force is difficult to control precisely, easily damaging machine parts; heat disassembly requires strict control of heating temperature and time, otherwise it will also affect the material properties.

[0004] To improve disassembly efficiency and reduce damage, more advanced disassembly tools and techniques can be considered. For example, using specialized pullers or presses for pushing and pulling operations can complete disassembly tasks more precisely and efficiently. Simultaneously, the design of polyurethane rollers and connecting shafts can be optimized, for example, by adopting a detachable connection structure, to allow for quick and convenient disassembly and replacement of components when needed. Utility Model Content

[0005] The main objective of this invention is to provide a polyurethane roller that is easy to disassemble, which can effectively solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A polyurethane roller that is easy to disassemble includes a roller body and a bearing assembly; the roller body is provided with an internal connector, and the two ends of the internal connector are connected to a quick-release roller connecting shaft, which is connected to the bearing assembly, so that the roller body and the bearing assembly can be quickly disassembled through the quick-release roller connecting shaft.

[0008] The quick-release roller connecting shaft includes a first half shaft and a second half shaft. The first half shaft and the second half shaft are inserted into the opening of the inner connector. The first half shaft and the second half shaft together form a connecting shaft. The first half shaft has a protruding strip inside, and a sliding groove is opened at the lower end of the protruding strip. The second half shaft has a slider inside, and the slider is embedded in the sliding groove to realize the limited movement of the second half shaft and the first half shaft.

[0009] The side walls of the first half shaft and the second half shaft are provided with threaded portions, and a limiting connection sleeve is sleeved at the threaded portions. A plurality of ball bearings are embedded in the end face of the limiting connection sleeve and contact the roller body to achieve the operation of reducing friction.

[0010] In a further preferred solution, the first half shaft and the convex strip are integrally designed. The cross sections of the first half shaft and the convex strip are designed in a shape similar to the Chinese character 'Mountain'. The second half shaft and the slider are integrally designed. The cross section of the slider is designed in a shape of a Chinese character 'Convex'. The upper protrusion of the slider is designed in an arc shape and is embedded in the chute.

[0011] In a further preferred solution, the contact end between the convex strip and the slider is designed to be smooth. The length of the convex strip is the same as the length of the first half shaft. The width of the slider is one tenth of the width of the convex strip.

[0012] In a further preferred solution, the first half shaft and the second half shaft are designed as circular shafts. The diameter of the circular shaft is the same as the diameter of the inner connecting member. The inner connecting member and the roller body are fixedly connected.

[0013] In a further preferred solution, the cross section of the limiting connection sleeve is designed in a shape of a Chinese character 'T'. The inner hole of the limiting connection sleeve is a threaded hole. The position of the limiting connection sleeve is adjusted through the threaded portion. The threaded portion is located in the middle section of the first half shaft and the second half shaft.

[0014] In a further preferred solution, a plurality of the ball bearings are annularly distributed on the end face of the limiting connection sleeve. The ball bearings are embedded in the holes opened on the end face of the limiting connection sleeve. The ball bearings contact the roller body and the inner connecting member. The position of the roller body is restricted through two groups of limiting connection sleeves.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] The polyurethane roller has high wear resistance and elasticity, can reduce the friction with the contact surface, improve the service life and operation efficiency of the roller. At the same time, the design of the polyurethane roller makes the roller more stable during operation, reducing noise and vibration.

[0017] The design of the quick-release roller connecting shaft simplifies the disassembly and assembly process of the roller. Through the design of two half shafts, the user can easily achieve the quick disassembly and assembly of the roller without cumbersome tools and operation steps. This not only improves the work efficiency but also reduces the maintenance cost.

[0018] The quick-release roller connecting shaft also enhances the stability and limiting effect of the roller structure. Through the cooperation of the convex strip, the chute and the slider, as well as the use of the limiting connection sleeve and the ball bearings, the stability and accuracy of the roller during connection are ensured. This effectively prevents the loosening and deviation of the roller during operation, improving the working precision and reliability of the roller. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a front view of the overall structure of this utility model;

[0021] Figure 3 This is an exploded view of the overall structure of this utility model;

[0022] Figure 4 This is an exploded view of the quick-release roller connecting shaft of this utility model.

[0023] In the figure: 1. Roller body; 2. Inner connecting part; 3. Quick-release roller connecting shaft; 31. First half shaft; 32. Protrusion; 33. Slide groove; 34. Threaded part; 35. Second half shaft; 36. Slider; 37. Limiting connecting sleeve; 38. Ball; 4. Bearing assembly. Detailed Implementation

[0024] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0025] like Figure 1 - Figure 4 As shown, a detachable polyurethane roller includes a roller body 1 and a bearing assembly 4. An inner connector 2 is embedded inside the roller body 1, with both ends connected to a quick-release roller connecting shaft 3. This quick-release roller connecting shaft 3 design greatly simplifies the connection process between the roller body 1 and the bearing assembly 4, enabling rapid disassembly and assembly.

[0026] The quick-release roller connecting shaft 3 is ingeniously designed, consisting of two half-shafts: a first half-shaft 31 and a second half-shaft 35. These two half-shafts can be easily inserted into the opening of the inner connector 2, together forming a complete connecting shaft. The first half-shaft 31 has a protruding rib 32 inside, with a groove 33 at its lower end. The second half-shaft 35 has a slider 36 inside. The slider 36 can fit into the groove 33, thereby limiting the movement of the second half-shaft 35 relative to the first half-shaft 31 and ensuring a stable connection.

[0027] To further enhance the stability and limiting effect of the connecting shaft, both the first half-shaft 31 and the second half-shaft 35 have threaded portions 34 on their side walls. A limiting connecting sleeve 37 is fitted at the threaded portion 34, and a plurality of balls 38 are embedded in its end face. These balls 38 contact the roller body 1, which can effectively reduce friction and improve the operating efficiency of the roller.

[0028] In terms of design, the first half shaft 31 and the rib 32 are integrally designed, and its cross-section presents a shape similar to a Chinese character 'Mountain'. The second half shaft 35 and the slider 36 are integrally designed, and the cross-section of the slider 36 is in the shape of a Chinese character 'Convex'. The upper convex part of the slider 36 is designed as an arc to better fit into the chute 33 and ensure the stability of the connection.

[0029] To ensure the smoothness when the rib 32 and the slider 36 come into contact, their contact ends are designed to be very smooth. The length of the rib 32 is exactly the same as the length of the first half shaft 31, while the width of the slider 36 is designed to be one-tenth of the width of the rib 32. Such a proportional design not only ensures the compactness of the structure but also the reliability of the function.

[0030] In terms of structure, both the first half shaft 31 and the second half shaft 35 adopt a circular shaft design, and their diameters are exactly the same as the diameter of the inner connector 2. The inner connector 2 is fixedly connected to the roller body 1. Such a design makes the structure of the entire roller more stable and also facilitates the installation and disassembly of the roller body 1.

[0031] The design of the limit connection sleeve 37 is also innovative. Its cross-section is in the shape of a Chinese character 'T'. The inner hole is a threaded hole, and its position can be conveniently adjusted through the threaded part 34. The threaded part 34 is located in the middle section of the first half shaft 31 and the second half shaft 35, and the other sections are smooth. Such a design enables the limit connection sleeve 37 to move easily, thus facilitating the sliding of the second half shaft 35 and achieving the quick disassembly of the first half shaft 31 and the second half shaft 35.

[0032] To further improve the stability of the roller and reduce wear, multiple balls 38 are annularly distributed on the end face of the limit connection sleeve 37. These balls 38 are embedded in the openings on the end face of the limit connection sleeve 37. Through the cooperation of two groups of limit connection sleeves 37, the position of the roller body 1 can be effectively restricted, ensuring the stability and accuracy of the roller during use.

[0033] Loosen and unscrew the threaded part 34 on the limit connection sleeve 37 with a wrench tool, move the limit connection sleeve 37 to the smooth section, and then remove the limit connection sleeve 37. Caution should be exercised during the operation to prevent the balls 38 from falling off. Once there is a sign of the balls 38 falling off, immediate measures should be taken to collect them. Subsequently, apply force to the second half shaft 35 along the direction of the chute 33 to separate it from the slider 36. After completing the above steps, take out the second half shaft 35. Immediately afterwards, perform the same operation on the first half shaft 31, that is, apply force along the direction of the chute 33 to disengage it from the rib 32 and finally take out the first half shaft 31.

[0034] Since the inner connector 2 is fixedly connected to the roller body 1, the inner connector 2 can be directly separated from the roller body 1. Based on the structural design of the bearing assembly 4, appropriate disassembly tools are selected, and the bearing assembly 4 is disassembled from the roller body 1 according to the established procedure.

[0035] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0036] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A detachable polyurethane roller, comprising a roller body (1) and a bearing assembly (4), characterized in that: An inner connecting member (2) is provided inside the roller body (1), and quick-release roller connecting shafts (3) are connected to both ends of the inner connecting member (2). The quick-release roller connecting shafts (3) are connected to a bearing assembly (4), and the quick-release roller connecting shafts (3) are used to achieve the quick disassembly of the roller body (1) and the bearing assembly (4). The quick-release roller connecting shaft (3) includes a first half shaft (31) and a second half shaft (35). The first half shaft (31) and the second half shaft (35) are inserted into the opening of the inner connecting member (2), and the first half shaft (31) and the second half shaft (35) together form a connecting shaft. A rib (32) is provided inside the shaft of the first half shaft (31), and a chute (33) is opened at the lower end of the rib (32). A slider (36) is provided inside the shaft of the second half shaft (35), and the slider (36) is embedded in the chute (33) to achieve the limited movement of the second half shaft (35) and the first half shaft (31). Threaded portions (34) are provided on the side walls of the first half shaft (31) and the second half shaft (35). A limiting connection sleeve (37) is sleeved on the threaded portions (34), and a plurality of balls (38) are embedded in the end face of the limiting connection sleeve (37) and contact the roller body (1) to achieve the friction reduction operation.

2. The easily detachable polyurethane roller according to claim 1, characterized in that: The first half shaft (31) and the rib (32) are integrally designed, and the cross-sections of the first half shaft (31) and the rib (32) are designed in a shape similar to a "mountain". The second half shaft (35) and the slider (36) are integrally designed, and the cross-section of the slider (36) is designed in a "convex" shape. The upper protrusion of the slider (36) is designed in an arc shape and is embedded in the chute (33).

3. The easily detachable polyurethane roller according to claim 2, characterized in that: The contact end of the rib (32) and the slider (36) is designed to be smooth, and the length of the rib (32) is the same as the length of the first half shaft (31). The width of the slider (36) is one-tenth of the width of the rib (32).

4. The easily detachable polyurethane roller according to claim 3, characterized in that: The first half shaft (31) and the second half shaft (35) are designed as circular shafts, and the diameter of the circular shaft is the same as the diameter of the inner connecting member (2). The inner connecting member (2) and the roller body (1) are fixedly connected.

5. The easily detachable polyurethane roller according to claim 4, characterized in that: The cross-section of the limiting connection sleeve (37) is designed in a "T" shape, and the inner hole of the limiting connection sleeve (37) is a threaded hole. The limiting connection sleeve (37) adjusts its position through the threaded portion (34), and the threaded portion (34) is located in the middle section of the first half shaft (31) and the second half shaft (35).

6. The easily detachable polyurethane roller according to claim 5, characterized in that: A plurality of the balls (38) are annularly distributed on the end face of the limiting connection sleeve (37). The balls (38) are embedded in the holes opened on the end face of the limiting connection sleeve (37). The balls (38) contact the roller body (1) and the inner connecting member (2), and the position of the roller body (1) is restricted through two groups of limiting connection sleeves (37).

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