High-strength wear-resistant plastic carrier roller

Abstract

The utility model is applicable to the technical field of conveying machinery, and provides a high-strength wear-resistant plastic carrier roller, which comprises a plastic roller body, a stamping bearing seat, a bearing, a retaining cover and a mandrel, and further comprises sealing components, a sealing ring, a sealing ring and a sealing ring, and the sealing components are mounted in the stamping bearing seat and positioned on two sides of the bearing; the clamping assembly is fixed to the side wall, close to the stamping bearing seat, of the blocking cover. According to the high-strength wear-resistant plastic carrier roller, the sealing assembly can seal the space between the stamping bearing seat and the gland, external impurities cannot enter the space, stable work of the mandrel and the bearing is guaranteed, the blocking cover and the stamping bearing seat can be stably connected through the clamping assembly, the installation stability of the blocking cover is improved, and the service life of the carrier roller is prolonged. The phenomenon that the blocking covers are prone to loosening is avoided, normal work of the plastic carrier roller is guaranteed, and then the working efficiency and practicability of the plastic carrier roller are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of conveying machinery, and particularly relates to a high-strength wear-resistant plastic roller. Background Art

[0002] Rollers are one of the important parts of belt conveyors. They are of many types and large quantities. They are mainly used to support the weight of conveyor belts and materials. Therefore, the quality of rollers is particularly important. Rollers include steel rollers, plastic rollers and ceramic rollers. Steel rollers have the disadvantage of being easily damaged and need to be replaced frequently. Ceramic rollers have the disadvantage of large radial runout and are easy to deviate the conveyed materials.

[0003] The existing high-strength wear-resistant plastic roller includes an oil-immersed high-strength wear-resistant nylon roller body, a roller shaft, a bearing, a shaft retaining ring, a high-strength wear-resistant nylon sealing ring, a sealing cover, a rotary shear and an inner sealing ring, wherein the roller body is assembled with the roller shaft through the bearing, the roller shafts at both ends are sealed and fixed in position by the shaft retaining ring and the inner sealing ring, the sealing cover is crimped to the inner surface of the roller body, a high-strength wear-resistant nylon sealing ring is provided between the sealing cover and the roller shaft, and the rotary shear is arranged on the sealing cover.

[0004] The sealing gland on the existing plastic roller is pressed onto the inner surface of the roller body and fixed by mutual extrusion. Although the sealing gland can be installed in this way, the plastic roller rotates continuously during operation and contacts with the conveyed object at the same time, which may cause the sealing gland to loosen, thereby affecting the working condition of the plastic roller.

[0005] Therefore, in view of the above situation, it is urgent to develop a high-strength wear-resistant plastic roller to overcome the shortcomings in current practical applications. Summary of the invention

[0006] In view of the deficiencies in the prior art, the purpose of the embodiments of the present utility model is to provide a high-strength and wear-resistant plastic roller to solve the problems in the above-mentioned background technology.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A high-strength wear-resistant plastic roller comprises a plastic roller body, a stamped bearing seat is welded at the ports on both sides of the plastic roller body, a bearing is fixed in the stamped bearing seat, a baffle is installed on one side of the stamped bearing seat, a mandrel is arranged inside the plastic roller body, both ends of the mandrel extend outside the baffle and are respectively fixedly connected to the bearings on both sides, and further comprises:

[0009] A sealing assembly, which is installed in the stamped bearing seat and is located on both sides of the bearing, and the sealing assembly is in contact with the outer wall of the spindle, and is used to seal the space on both sides of the bearing;

[0010] The clamping assembly is fixed on the side wall of the blocking cover close to the stamped bearing seat. The clamping assembly secures the blocking cover in the stamped bearing seat by pushing along the axial direction of the stamped bearing seat and rotating along the circumferential direction of the stamped bearing seat.

[0011] As a further technical solution of the utility model, the sealing assembly includes a first sealing ring, a second sealing ring and a third sealing ring. The first sealing ring is arranged on a side of the stamped bearing seat away from the baffle cover and located on one side of the bearing. The second sealing ring is arranged on a side of the stamped bearing seat close to the baffle cover and located on the other side of the bearing. One side of the third sealing ring is installed on the baffle cover, and the other side of the third sealing ring is stacked on one side of the second sealing ring.

[0012] As a further technical solution of the utility model, the engaging assembly includes an engaging block, which is fixed on the outer wall of the retaining cover close to the bearing side, and the engaging block is slidably matched with a groove provided on the inner wall of the stamped bearing seat.

[0013] As a further technical solution of the utility model, the slot is a slot body formed by two groups of slide grooves connected to each other, one group of slide grooves is arranged in the axial direction of the stamped bearing seat, and the other group of slide grooves is arranged in the circumferential direction of the stamped bearing seat.

[0014] As a further technical solution of the utility model, a toggle block is symmetrically fixed on the outer wall of the blocking cover, and a toggle groove is provided on the toggle block. The toggle groove drives the blocking cover to move and rotate by cooperating with a U-shaped turning handle tool.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] During installation, first fix the first sealing ring in the stamped bearing seat, then fix the bearing in the stamped bearing seat, then install the second sealing ring, the third sealing ring and the stop cover in sequence, and fit the second sealing ring with the bearing, stack the second sealing ring and the third sealing ring, and fit the third sealing ring with the inner surface of the stop cover, so as to seal both sides of the plastic roller body, so that foreign matter will not enter the inside, ensure the stable operation of the spindle and the bearing, and improve the working efficiency and practicality of the plastic roller;

[0017] When installing the baffle cover, align the locking block on the baffle cover with the slide groove arranged along the axial direction of the stamped bearing seat, and let the locking block slide into the slide groove arranged along the axial direction of the stamped bearing seat. When the locking block slides to the slide groove position arranged along the circumferential direction of the stamped bearing seat, the U-shaped turning handle tool is engaged with the toggle groove, and the U-shaped turning handle tool is rotated. The U-shaped turning handle tool drives the baffle cover to rotate, and the baffle cover drives the locking block to rotate into the slide groove arranged along the circumferential direction of the stamped bearing seat, thereby realizing a stable connection between the baffle cover and the stamped bearing seat, improving the installation stability of the baffle cover, avoiding the baffle cover from loosening, etc., ensuring the normal operation of the plastic roller, and thereby improving the working efficiency and practicality of the plastic roller.

[0018] In order to more clearly illustrate the structural features and functions of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic structural diagram of a high-strength wear-resistant plastic roller provided in an embodiment of the utility model.

[0020] Figure 2 for Figure 1 A magnified view of the structure in the middle.

[0021] Figure 3 for Figure 2 A magnified view of the structure at B in the middle.

[0022] Figure markings: 1-plastic roller body, 2-central shaft, 3-stamping bearing seat, 4-bearing, 5-sealing assembly, 51-first sealing ring, 52-second sealing ring, 53-third sealing ring, 6-blocking cover, 7-clamping assembly, 71-clamping block, 72-clamping groove, 8-sliding block, 81-sliding groove. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0024] The specific implementation of the present utility model is described in detail below in conjunction with specific embodiments.

[0025] like Figures 1 to 3As shown, a high-strength wear-resistant plastic roller provided as an embodiment of the utility model comprises a plastic roller body 1, a stamped bearing seat 3 is welded at the ports on both sides of the plastic roller body 1, a bearing 4 is fixed in the stamped bearing seat 3, a baffle 6 is installed on one side of the stamped bearing seat 3, a mandrel 2 is arranged inside the plastic roller body 1, both ends of the mandrel 2 extend outside the baffle 6 and are respectively fixedly connected to the bearings 4 on both sides, and further comprises:

[0026] A clamping assembly 7, wherein the clamping assembly 7 is fixed on the side wall of the stop cover 6 close to the stamping bearing seat 3, and the clamping assembly 7 secures the stop cover 6 in the stamping bearing seat 3 by pushing along the axial direction of the stamping bearing seat 3 and rotating along the circumferential direction of the stamping bearing seat 3;

[0027] The clamping assembly 7 includes a clamping block 71, which is fixed on the outer wall of the blocking cover 6 close to the bearing 4, and the clamping block 71 is slidably matched with a clamping groove 72 provided on the inner wall of the stamping bearing seat 3;

[0028] The clamping groove 72 is a groove body formed by two groups of sliding grooves connected to each other, one group of sliding grooves is arranged in the axial direction of the stamped bearing seat 3, and the other group of sliding grooves is arranged in the circumferential direction of the stamped bearing seat 3.

[0029] like Figures 1 to 3 As shown, as a preferred embodiment of the utility model, a toggle block 8 is symmetrically fixed on the outer wall of the blocking cover 6, and a toggle groove 81 is provided on the toggle block 8. The toggle groove 81 drives the blocking cover 6 to move and rotate by cooperating with a U-shaped turning handle tool.

[0030] In this embodiment, when the baffle cover 6 is installed, the locking block 71 on the baffle cover 6 is aligned with the slide groove arranged along the axial direction of the stamped bearing seat 3, and the locking block 71 is allowed to slide into the slide groove arranged along the axial direction of the stamped bearing seat 3. When the locking block 71 slides to the slide groove position arranged along the circumferential direction of the stamped bearing seat 3, the U-shaped turning handle tool is engaged with the toggle groove 81, and the U-shaped turning handle tool is rotated. The U-shaped turning handle tool drives the baffle cover 6 to rotate, and the baffle cover 6 drives the locking block 71 to rotate into the slide groove arranged along the circumferential direction of the stamped bearing seat 3, thereby realizing a stable connection between the baffle cover 6 and the stamped bearing seat 3, improving the installation stability of the baffle cover 6, avoiding the baffle cover 6 from being easily loosened, ensuring the normal operation of the plastic roller, and thereby improving the working efficiency and practicality of the plastic roller.

[0031] In a preferred embodiment, the slot 72 is not limited to being arranged along the axial and circumferential directions of the stamped bearing seat 3, and can also be arranged in other slot shapes that can meet installation requirements, such as a curved slot or a spiral slot;

[0032] The U-shaped turning tool can be manufactured according to the specifications of the toggle slot 81 to become a special tool.

[0033] like Figures 1 to 3 As shown, as a preferred embodiment of the utility model, it also includes a sealing assembly 5, which is installed in the stamping bearing seat 3 and is located on both sides of the bearing 4, and the sealing assembly 5 is in contact with the outer wall of the spindle 2, and the sealing assembly 5 is used to seal the space on both sides of the bearing 4;

[0034] The sealing assembly 5 includes a first sealing ring 51, a second sealing ring 52 and a third sealing ring 53. The first sealing ring 51 is arranged on the side of the stamped bearing seat 3 away from the baffle 6 and located on one side of the bearing 4. The second sealing ring 52 is arranged on the side of the stamped bearing seat 3 close to the baffle 6 and located on the other side of the bearing 4. One side of the third sealing ring 53 is installed on the baffle 6, and the other side of the third sealing ring 53 is stacked with one side of the second sealing ring 52.

[0035] In this embodiment, during installation, the first sealing ring 51 is first fixed in the stamped bearing seat 3, and then the bearing 4 is fixed in the stamped bearing seat 3, and then the second sealing ring 52, the third sealing ring 53 and the baffle 6 are installed in sequence, and the second sealing ring 52 is fit with the bearing 4, the second sealing ring 52 and the third sealing ring 53 are stacked on each other, and the third sealing ring 53 is fit with the inner surface of the baffle 6, so as to seal both sides of the plastic roller body 1, so that external impurities will not enter its interior, thereby ensuring the stable operation of the spindle 2 and the bearing 4, and improving the working efficiency and practicality of the plastic roller.

[0036] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A high-strength wear-resistant plastic roller, comprising a plastic roller body, a stamped bearing seat welded at the ports on both sides of the plastic roller body, a bearing fixed in the stamped bearing seat, a baffle installed on one side of the stamped bearing seat, a mandrel arranged inside the plastic roller body, both ends of the mandrel extending outside the baffle and fixedly connected to the bearings on both sides, characterized in that: Also includes: A sealing assembly, which is installed in the stamped bearing seat and is located on both sides of the bearing, and the sealing assembly is in contact with the outer wall of the spindle, and is used to seal the space on both sides of the bearing; The clamping assembly is fixed on the side wall of the blocking cover close to the stamped bearing seat. The clamping assembly secures the blocking cover in the stamped bearing seat by pushing along the axial direction of the stamped bearing seat and rotating along the circumferential direction of the stamped bearing seat.

2. The high-strength wear-resistant plastic roller according to claim 1, characterized in that: The sealing assembly includes a first sealing ring, a second sealing ring and a third sealing ring. The first sealing ring is arranged on a side of the stamped bearing seat away from the baffle and located on one side of the bearing. The second sealing ring is arranged on a side of the stamped bearing seat close to the baffle and located on the other side of the bearing. One side of the third sealing ring is installed on the baffle, and the other side of the third sealing ring is stacked with one side of the second sealing ring.

3. The high-strength wear-resistant plastic roller according to claim 1, characterized in that: The clamping assembly comprises a clamping block, which is fixed on the outer wall of the blocking cover close to the bearing, and the clamping block is slidably matched with a clamping groove provided on the inner wall of the stamping bearing seat.

4. The high-strength wear-resistant plastic roller according to claim 3 is characterized in that: The clamping groove is a groove body formed by connecting two groups of sliding grooves to each other, one group of sliding grooves is arranged in the axial direction of the stamped bearing seat, and the other group of sliding grooves is arranged in the circumferential direction of the stamped bearing seat.

5. The high-strength wear-resistant plastic roller according to claim 1, characterized in that: A toggle block is symmetrically fixed on the outer wall of the blocking cover, and a toggle groove is provided on the toggle block. The toggle groove drives the blocking cover to move and rotate by cooperating with a U-shaped turning handle tool.

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