End sealing assembly, non-metal carrier roller and assembling method

Abstract

The invention discloses an end sealing assembly, a non-metal carrier roller and an assembling method. The end sealing assembly comprises a bearing and a sealing ring, a mounting cavity, a bearing cavity and a roll shaft hole which are concentrically arranged and sequentially communicated are formed in the bearing seat; the bearing is arranged in the bearing cavity; the two sealing pieces are arranged oppositely and are arranged on the two opposite sides of the bearing respectively, and grease layers are arranged between the sealing pieces and the bearing; and the end cover is arranged in the mounting cavity and is connected with the bearing seat. The invention discloses an end sealing assembly, a non-metal carrier roller and an assembling method, and aims to solve the problem that an existing bearing is easy to fail in sealing.

Description

Technical Field

[0001] The present application relates to the technical field of bearing seats, and more specifically, to an end seal assembly, a non-metallic roller and an assembly method. Background Art

[0002] As an important component of the belt conveyor, the roller supports the belt to facilitate the conveyor to transport materials. Bearings are provided at both ends of the roller, and the roller is installed in the bearing seat through the bearing to realize the rotation of the cylinder relative to the roller shaft. In current technology, when rollers are used in mines, power plants, ports, chemical plants, building materials plants and other places, such application scenarios have problems of high dust and humidity, and are also mixed with rain, snow and other conditions. If the sealing structure is not reasonable, dust and water vapor will invade the bearing, which will accelerate the failure of the bearing and even cause it to get stuck, which will cause the roller to get stuck. This is also one of the main failure cases of existing rollers.

[0003] Therefore, an end seal assembly, a non-metallic roller and an assembly method are needed to solve the above problems. Summary of the invention

[0004] In view of this, the purpose of the present application is to provide a front hood hinge device and a vehicle to solve the problem that the pedestrian protection effect provided by the existing front hood hinge device is not ideal.

[0005] Based on the above purpose, the present application provides a front hatch hinge device, including:

[0006] In view of this, the purpose of the present application is to propose an end seal assembly, a non-metallic roller and an assembly method to solve the problem that the existing bearing seals are prone to failure.

[0007] Based on the above purpose, the present application provides an end sealing assembly, comprising:

[0008] Bearings;

[0009] A bearing seat, wherein the bearing seat is provided with a mounting cavity, a bearing cavity and a roller shaft hole which are concentrically arranged and sequentially connected; the bearing is arranged in the bearing cavity;

[0010] Two sealing members arranged opposite to each other, the two sealing members are arranged on opposite sides of the bearing respectively, and a grease layer is arranged between the sealing members and the bearing;

[0011] An end cover is arranged in the installation cavity and connected to the bearing seat.

[0012] Optionally, the bearing cavity comprises a first sealing cavity, a bearing installation cavity and a second sealing cavity which are connected in sequence, the bearing is arranged in the bearing installation cavity, and the two sealing members are respectively arranged in the first sealing cavity and the second sealing cavity.

[0013] Optionally, the two seals are respectively a first seal and a second seal, the first seal and the second seal are respectively arranged in the first sealing cavity and the second sealing cavity, a first containing groove is arranged between the first seal and the bearing, a second containing groove is arranged between the second seal and the bearing, and the first containing groove and the second containing groove are both filled with the grease layer.

[0014] Optionally, a labyrinth groove is provided on an end surface of the first sealing member facing the end cover.

[0015] Optionally, the end cover is snap-fittedly connected to the bearing seat, a protrusion capable of entering the labyrinth groove is provided on the side of the end cover facing the first seal, and the side of the end cover facing away from the first seal abuts against a retaining ring.

[0016] Optionally, a guide groove is provided on an end surface of the second sealing member facing the roller shaft hole.

[0017] The present application also provides a non-metallic roller, comprising:

[0018] two end seal assemblies as described above;

[0019] A roller shaft, wherein opposite ends of the roller shaft are respectively connected to the end sealing assemblies;

[0020] The two end sealing assemblies are symmetrically arranged in the cylinder, and the opposite ends of the roller shaft extend out from the opposite ends of the cylinder respectively.

[0021] Optionally, the non-metallic roller further includes: two retaining rings, and limiting grooves are respectively provided at opposite ends of the roller shaft, and the retaining ring is snap-connected in each of the limiting grooves, and the retaining ring abuts against the end cover of the end sealing assembly.

[0022] The present application also provides an assembly method of the non-metallic roller as described above, characterized in that:

[0023] (1) Fix and install end seal assemblies at opposite ends of the roller shaft respectively;

[0024] (2) The cylinder is sleeved on the outside of the end sealing assembly, and the opposite ends of the cylinder are respectively engaged and connected with the end sealing assemblies at corresponding positions.

[0025] Optionally, step (1) also includes: installing a second seal and a bearing in the bearing cavity of the bearing seat, and filling grease between the second seal and the bearing to form a grease layer; installing a first seal in the bearing cavity, and filling grease between the bearing and the first seal to form a grease layer; installing an end cover in the installation cavity of the bearing seat and connecting it to the bearing seat; one end of the roller shaft is successively inserted into the roller shaft hole of the bearing seat, the second seal, the bearing, the first sealing assembly and the end cover, and extends out of the installation cavity.

[0026] Optionally, step (1) further includes: installing a retaining ring into the limiting groove of the roller shaft.

[0027] From the above, it can be seen that the end seal assembly, non-metallic roller and assembly method provided by the present application have the following advantages compared with the prior art: the above-mentioned end seal assembly is adopted, and two seals provide sealing functions for the bearing from both sides respectively, so as to improve the overall sealing performance of the end seal assembly, and prevent water vapor, impurities, etc. from entering the bearing and causing wear to the bearing. On this basis, a grease layer is filled between each seal and the bearing, and the grease layer can absorb impurities such as dust and water vapor to prevent further diffusion into the bearing cavity, effectively prevent dust and water vapor from damaging the bearing, and further extend the service life of the bearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The above-mentioned features and technical advantages of the present application will become clearer and easier to understand through the following description of its embodiments in conjunction with the accompanying drawings.

[0029] Figure 1 It is a schematic diagram of the end sealing assembly used in the specific embodiment of the present application.

[0030] Figure 2 for Figure 1 Schematic diagram of the bearing housing shown.

[0031] Figure 3 for Figure 1 A schematic diagram of the first seal is shown.

[0032] Figure 4 for Figure 1 A schematic diagram of the second seal is shown.

[0033] Figure 5 To include Figure 1 Schematic diagram of a non-metallic idler with an end seal assembly is shown.

[0034] The reference numerals are:

[0035] 1. Cylinder; 2. Bearing seat; 21. Mounting cavity; 22. Roller shaft hole; 23. First sealing cavity; 24. Bearing mounting cavity; 25. Second sealing cavity; 3. First sealing member; 31. Labyrinth groove; 32. First containing groove; 4. End cover; 5. Bearing; 6. Retaining ring; 7. Roller shaft; 8. Second sealing member; 81. Guide groove; 82. Second containing groove. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solutions and advantages of the present application more clearly understood, the present application is further described in detail below in combination with specific embodiments and with reference to the accompanying drawings. The same parts are represented by the same figure numerals. It should be noted that the words "front", "rear", "left", "right", "up" and "down" used in the following description refer to the directions in the accompanying drawings. The words "inside" and "outside" used refer to the direction toward or away from the geometric center of a specific component, respectively.

[0037] Figure 1 It is a schematic diagram of the end sealing assembly used in the specific embodiment of the present application. Figure 2 for Figure 1 Schematic diagram of the bearing housing shown. Figure 3 for Figure 1 A schematic diagram of the first seal is shown. Figure 4 for Figure 1 A schematic diagram of the second seal is shown in FIG. Figures 1 to 4 As shown, the end sealing assembly includes a bearing 5, a bearing seat 2, two sealing members arranged opposite to each other and an end cover 4.

[0038] The end sealing assembly includes a bearing 5 , and the bearing 5 can be matched according to the roller shaft 7 and the bearing seat 2 , the inner wall of the bearing 5 matches the roller shaft 7 , and the outer wall of the bearing 5 matches the bearing seat 2 .

[0039] The bearing seat 2 is provided with a mounting cavity 21, a bearing cavity and a roller shaft hole 22 which are concentrically arranged and connected in sequence; the bearing 5 is arranged in the bearing cavity;

[0040] Two seals are respectively arranged on opposite sides of the bearing 5, and a grease layer is arranged between the seals and the bearing 5;

[0041] The end cover 4 is arranged in the installation cavity 21 and connected to the bearing seat 2. The end cover 4 prevents large particles and hard objects from the outside from impacting the components in the bearing seat 2.

[0042] The bearing 5 is connected in the bearing cavity, and two seals are respectively installed on opposite sides of the bearing 5, and a grease layer is filled between each seal and the bearing 5. The end cover 4 is arranged in the installation cavity 21, and the roller shaft 7 enters from one side of the roller shaft hole 22, passes through the seal, the bearing 5 and the seal on the other side in sequence, and then passes out from the end cover 4. The roller shaft 7 is connected to the end cover 4. When the bearing seat 2 is installed in the cylinder 1, the end cover 4 is connected to the bearing seat 2, and the end cover 4 provides a fixing function for the bearing seat 2.

[0043] With the above-mentioned end seal assembly, two seals provide sealing functions for the bearing 5 from both sides, respectively, to improve the overall sealing performance of the end seal assembly, and prevent water vapor, impurities, etc. from entering the bearing 5 and causing wear to the bearing 5. On this basis, a grease layer is filled between each seal and the bearing 5, and the grease layer can absorb impurities such as dust and water vapor to prevent further diffusion into the bearing cavity, effectively prevent dust and water vapor from invading the bearing 5, and further extend the service life of the bearing 5.

[0044] In one embodiment of the present application, the bearing seat 2 is made of a fiber-reinforced thermoplastic composite material or a thermoplastic resin material. The fiber-reinforced thermoplastic composite material has the advantages of excellent mechanical properties and low density. When the bearing seat 2 is prepared, the energy consumption of the bearing seat 2 and the belt conveyor during operation can be effectively reduced.

[0045] In one embodiment of the present application, the bearing seat 2 is provided with a mounting cavity 21, a bearing cavity and a roller shaft hole 22 in sequence; the outer wall of the bearing seat 2 is provided with a snap-fitting portion for snap-fitting with the cylinder 1, and the outer diameter of the bearing seat 2 is consistent except for the snap-fitting portion; the inner diameter of the bearing seat 2 changes accordingly due to the layout of each cavity. The diameter of the mounting cavity 21 is larger than the diameter of the bearing cavity, and the diameter of the bearing cavity is larger than the diameter of the roller shaft hole 22.

[0046] In one embodiment of the present application, the installation cavity 21 has an inclined inner wall, and the diameter of the installation cavity 21 gradually increases toward the end surface of the bearing seat 2 .

[0047] In one embodiment of the present application, the bearing seat 2 is made of fiber-reinforced thermoplastic composite material or thermoplastic resin material.

[0048] In one embodiment of the present application, the end cover 4 is made of fiber-reinforced thermoplastic composite material, thermoplastic resin or metal material.

[0049] In one embodiment of the present application, the bearing seat 2 and the bearing 5 adopt a transition or interference fit.

[0050] In one embodiment of the present application, the seal and the bearing seat 2 adopt a transition or interference fit.

[0051] In one embodiment of the present application, the end cover 4 is snap-fitted or threadedly connected to the bearing seat 2 .

[0052] In order to balance lightweight and structural strength, in one embodiment of the present application, a plurality of weight-reducing cavities evenly distributed along the circumferential direction are provided between the roller shaft hole 22 and the outer wall of the bearing seat 2, and the plurality of weight-reducing cavities are dispersed on the end face of the bearing seat 2, which helps to ensure the structural strength of the bearing seat 2.

[0053] In one embodiment of the present application, a plurality of spaced reinforcing ribs are provided in the weight-reducing cavity, and the reinforcing ribs divide the weight-reducing cavity into weight-reducing holes. By providing the reinforcing ribs, the structural strength of the bearing seat 2 can be enhanced while meeting the requirements of lightweight.

[0054] In one embodiment of the present application, the weight-reducing holes are formed by enclosing two adjacent reinforcing ribs, the outer wall of the bearing seat 2 and the outer wall of the roller shaft hole 22, and the structures of the weight-reducing holes are the same or similar and are approximately trapezoidal.

[0055] In one embodiment of the present application, the diameter of the reinforcing rib gradually decreases from the outer wall of the roller shaft hole 22 toward the outer wall of the bearing seat 2. The use of reinforcing ribs with variable diameters can not only ensure structural strength and effective load transmission, but also save material usage and reduce weight.

[0056] In one embodiment of the present application, the reinforcing rib, the outer wall of the roller hole 22 and the outer wall of the bearing seat 2 are an integrally formed structure. The diameter of the reinforcing rib near the outer wall of the roller hole 22 is 2-4 times the diameter of the outer wall near the bearing seat 2.

[0057] See also Figure 2 In order to further simplify the structure, the bearing cavity may optionally include a first sealing cavity 23, a bearing installation cavity 24, and a second sealing cavity 25 which are connected in sequence, the bearing 5 is arranged in the bearing installation cavity 24, and two seals are arranged in the first sealing cavity 23 and the second sealing cavity 25 respectively. The first sealing cavity 23, the bearing installation cavity 24, and the second sealing cavity 25 may share the same cavity, that is, the side of the cavity close to the installation cavity 21 (the left side) is the first sealing cavity 23, the center of the cavity is the bearing installation cavity 24, and the side of the cavity away from the installation cavity 21 (the right side) is the second sealing cavity 25. During assembly, first install the seal on the right side, then install the bearing 5 in the middle, and finally install the seal on the left side.

[0058] See also Figure 3 and Figure 4Optionally, the two seals are respectively a first seal 3 and a second seal 8, which are respectively arranged in the first sealing cavity 23 and the second sealing cavity 25, a first accommodating groove 32 is arranged between the first seal 3 and the bearing 5, a second accommodating groove 82 is arranged between the second seal 8 and the bearing 5, and both the first accommodating groove 32 and the second accommodating groove 82 are filled with a grease layer. The first seal 3 and the second seal 8 are both sleeved on the roller 7, one end face of the first seal 3 abuts against the end cover 4, the other end face of the first seal 3 abuts against the outer wall of the bearing 5, and a first accommodating groove 32 is arranged between the end face and the bearing 5; one end face of the second seal 8 abuts against the bearing seat 2, the other end face of the second seal 8 abuts against the outer wall of the bearing 5, and a second accommodating groove 82 is arranged between the end face and the bearing 5. The first seal 3 and the second seal 8 provide sealing for the bearing 5 from both sides, respectively, to ensure that the bearing 5 operates in a relatively sealed environment to prevent dust, water vapor, etc. from affecting the bearing 5. Grease is filled into the first receiving groove 32 and the second receiving groove 82 to form a grease layer, which can absorb impurities such as dust and water vapor to prevent further diffusion into the bearing 5 cavity, thereby effectively preventing dust and water vapor from damaging the bearing 5.

[0059] In one embodiment of the present application, the first sealing member 3 and / or the second sealing member 8 is made of thermoplastic resin, fiber-reinforced thermoplastic composite material or metal material.

[0060] In one embodiment of the present application, the first seal 3 and the bearing seat 2 adopt a transition or interference fit, and / or the second seal 8 and the bearing seat 2 adopt a transition or interference fit.

[0061] Continue to see Figure 3 Optionally, a labyrinth groove 31 is provided on the end surface of the first seal 3 facing the end cover 4. The labyrinth groove 31 increases the difficulty for dust, water vapor, etc. to pass through the first seal 3, thereby preventing dust, water vapor, etc. from affecting the bearing 5.

[0062] In one embodiment of the present application, a through hole for the roller shaft 7 to pass through is arranged at the center of the first seal 3, a labyrinth groove 31 is arranged on the end face of the first seal 3 facing the end cover 4, and the labyrinth groove 31 includes a plurality of evenly distributed grooves; a first accommodating groove 32 is arranged on the end face facing the bearing 5, and the first accommodating groove 32 is symmetrically structured along the through hole.

[0063] In order to reduce the difficulty of assembly and improve the structural stability of the end seal assembly, the end cover 4 is optionally connected with the bearing seat 2 by snapping, and a protrusion that can enter the labyrinth groove 31 is provided on the side of the end cover 4 facing the first seal 3, and the side of the end cover 4 facing away from the first seal 3 abuts against the retaining ring 6. When the end cover 4 is connected with the bearing seat 2, the protrusion on the end cover 4 enters the labyrinth groove 31, and after the roller shaft 7 passes through the end cover 4, the retaining ring 6 is snapped on the roller shaft 7, providing a limiting effect for the end cover 4.

[0064] In one embodiment of the present application, the labyrinth groove 31 includes a plurality of evenly distributed grooves, the number of protrusions is no more than the number of grooves, and the end cover 4 may be symmetrically provided with a plurality of protrusions; the size of the protrusions is slightly smaller than the size of the grooves, and the protrusions can move within the grooves, thereby reducing the difficulty of assembling the end cover 4 and the first seal 3.

[0065] Continue to see Figure 4 In order to further reduce the influence of water vapor, impurities, etc., optionally, the second sealing member 8 is provided with a guide groove 81 on the end surface facing the roller shaft hole 22. The water vapor on the roller shaft 7 converges toward the guide groove 81, thereby avoiding gathering at the bearing 5.

[0066] In one embodiment of the present application, a through hole for the roller shaft 7 to pass through is provided at the center of the second sealing member 8, the through hole is connected to the guide groove 81, and the diameter of the through hole is gradually changed, that is, the through hole is in interference fit with the roller shaft 7 on the side away from the guide groove 81, and the closer the through hole is to the guide groove 81, the larger the diameter is, and when the roller shaft 7 passes through the through hole, the closer it is to the guide groove 81, the larger the gap between the roller shaft 7 and the through hole is. The second accommodating groove 82 is symmetrically arranged along the through hole, and the width of the second accommodating groove 82 is narrow at the bottom and wide at the top, that is, the closer it is to the bearing 5, the larger the width of the second accommodating groove 82 is.

[0067] The use of the end sealing assembly 1 is further described below.

[0068] The first seal 3, the bearing 5, and the second seal 8 are sequentially installed in the second seal cavity 25, the bearing installation cavity 24, and the first seal cavity 23. The first receiving groove 32 formed between the first seal 3 and the bearing 5 is filled with a grease layer, and the second receiving groove 82 formed between the second seal 8 and the bearing 5 is filled with a grease layer. The end cover 4 is arranged in the installation cavity 21, and the roller shaft 7 enters from one side of the roller shaft hole 22, passes through the second seal 8, the bearing 5, and the first seal 3 in sequence, and then passes through the end cover 4. The roller shaft 7 is connected to the end cover 4. When the bearing seat 2 is installed in the cylinder 1, the end cover 4 is connected to the bearing seat 2, and the end cover 4 provides a fixing function for the bearing seat 2.

[0069] Figure 5 To include Figure 1 Schematic diagram of a non-metallic roller with an end seal assembly as shown. Figure 5As shown, the present application also provides a non-metallic roller, comprising: two end sealing assemblies as described above, a roller shaft 7 and a cylinder 1.

[0070] Two end sealing assemblies as described above; the end sealing assembly can adopt the end sealing assembly described in any of the above embodiments, which will not be repeated here.

[0071] The opposite ends of the roller shaft 7 are respectively connected with end sealing assemblies; the roller shaft 7 is penetrated by the end sealing assemblies, and the end sealing assemblies provide sealing function for the roller shaft 7.

[0072] The two end sealing assemblies are symmetrically arranged in the cylinder 1 , and opposite ends of the roller shaft 7 extend out from opposite ends of the cylinder 1 respectively.

[0073] Two end seal assemblies are symmetrically arranged in the cylinder 1, and the opposite ends of the roller shaft 7 are respectively penetrated through the end seal assemblies on both sides, and extend out from the opposite ends of the cylinder 1. Specifically, the second seal 8 is installed in the second seal cavity 25, the bearing 5 is connected in the bearing installation cavity 24, the first seal 3 is installed in the first seal cavity 23, the first receiving groove 32 formed between the first seal 3 and the bearing 5 is filled with a grease layer, and the second receiving groove 82 formed between the second seal 8 and the bearing 5 is filled with a grease layer. The end cover 4 is arranged in the installation cavity 21, and the roller shaft 7 enters from one side of the roller shaft hole 22, and is successively penetrated through the second seal 8, the bearing 5 and the first seal 3, and then penetrates out from the end cover 4, and the roller shaft 7 is connected to the end cover 4. When the bearing seat 2 is installed in the cylinder 1, the end cover 4 is connected to the bearing seat 2. The two bearing seats 2 are symmetrically arranged in the cylinder 1.

[0074] The above-mentioned non-metallic roller is adopted, and the non-metallic roller adopts the above-mentioned end sealing assembly. Two seals provide sealing functions for the bearing 5 from both sides thereof, respectively, to improve the overall sealing performance of the end sealing assembly, and prevent water vapor, impurities, etc. from entering the bearing 5, causing wear to the bearing 5. On this basis, a grease layer is filled between each seal and the bearing 5, and the grease layer can absorb impurities such as dust and water vapor, and prevent further diffusion into the bearing 5 cavity, effectively preventing dust and water vapor from invading the bearing 5, and further extending the service life of the bearing 5.

[0075] In one embodiment of the present application, the cylinder 1 is made of fiber-reinforced thermoplastic composite material or thermoplastic resin material.

[0076] In one embodiment of the present application, the bearing seat 2, the cylinder 1, and the end cover 4 are all made of fiber-reinforced thermoplastic composite materials. The fiber-reinforced thermoplastic composite materials have the advantages of excellent mechanical properties and low density. When preparing non-metallic rollers, they can effectively reduce the energy consumption of the belt conveyor during operation. At the same time, it has the advantage of not being resistant to high temperatures, and its temperature resistance is lower than that of the belt. For example, the operating temperature of polyvinyl chloride thermoplastic polymers can reach up to 80-100°C, but the temperature of the belt conveyor during normal operation is about 60°C. When the non-metallic roller is stuck, the sliding friction between the belt and the non-metallic roller quickly generates heat, and the non-metallic roller can quickly collapse to protect the belt. Metal rollers are difficult to collapse, and their temperature resistance is much higher than that of the belt, which may cause the belt to eventually burn out. Usually the value of the belt is much higher than the value of the roller. Therefore, non-metallic rollers can not only effectively reduce operating energy consumption, but also protect the belt.

[0077] In one embodiment of the present application, the cylinder 1 and the bearing seat 2 adopt a transition or interference fit, and adhesive bonding can be added at the junction of the cylinder 1 and the bearing seat 2.

[0078] In one embodiment of the present application, the bearing 5 and the roller shaft 7 adopt an interference fit or a transition fit.

[0079] In one embodiment of the present application, the end cover 4 and the roller shaft 7 adopt an interference fit or a transition fit, and adhesive bonding may be provided at the joint between the end cover 4 and the roller shaft 7 .

[0080] In one embodiment of the present application, the contact surfaces of the bearing seat 2 and the cylinder 1 are respectively provided with a slot and a buckle. When the bearing seat 2 is installed in the cylinder 1, the bearing seat 2 and the cylinder 1 are connected together by the slot and the buckle. The cross section of the cylinder 1 between the two bearing seats 2 is consistent in the axial direction. The cylinder 1 can be manufactured by an extrusion molding method, which is suitable for flexible manufacturing of the length direction, so that a set of molding molds can manufacture cylinders 1 and rollers of various lengths.

[0081] Optionally, the non-metallic roller further includes: two retaining rings 6, and limiting grooves are respectively provided at opposite ends of the roller shaft 7, and a retaining ring 6 is engaged and connected in each limiting groove, and the retaining ring 6 abuts against the end cover 4 of the end sealing assembly. The retaining ring 6 is sleeved on the limiting groove, and abuts against the end cover 4 through the part protruding from the limiting groove, providing a positioning function for the end cover 4. The use of the retaining ring 6 and the limiting groove can improve the connection stability of the end cover 4 and the bearing seat 2.

[0082] The following is a further introduction to the use of non-metallic rollers.

[0083] The second seal 8 is installed in the second seal cavity 25, the bearing 5 is connected to the bearing installation cavity 24, the first seal 3 is installed in the first seal cavity 23, the first receiving groove 32 formed between the first seal 3 and the bearing 5 is filled with a grease layer, and the second receiving groove 82 formed between the second seal 8 and the bearing 5 is filled with a grease layer. The end cover 4 is arranged in the installation cavity 21, the roller shaft 7 enters from one side of the roller shaft hole 22, passes through the second seal 8, the bearing 5 and the first seal 3 in sequence, and then passes through the end cover 4. When the bearing seat 2 is installed in the cylinder 1, the retaining ring 6 is installed on the roller shaft 7, the retaining ring 6 is sleeved on the limiting groove, and abuts on the end cover 4 through the part protruding from the limiting groove, the roller shaft 7 is connected to the end cover 4, so that the end cover 4 and the bearing seat 2 are connected together.

[0084] The present application also provides an assembly method of the non-metallic roller as described above, characterized in that:

[0085] (1) fixing and installing end sealing assemblies at opposite ends of the roller shaft 7;

[0086] (2) The cylinder 1 is sleeved on the outside of the end sealing assembly, and the opposite ends of the cylinder 1 are respectively engaged and connected with the end sealing assemblies at corresponding positions.

[0087] The non-metallic roller assembly method adopts the end seal assembly, and the two seals provide sealing for the bearing 5 from both sides, so as to improve the overall sealing performance of the end seal assembly, and prevent water vapor, impurities, etc. from entering the bearing 5 and causing wear to the bearing 5. On this basis, a grease layer is filled between each seal and the bearing 5, and the grease layer can absorb impurities such as dust and water vapor to prevent further diffusion into the bearing cavity, effectively prevent dust and water vapor from invading the bearing 5, and further extend the service life of the bearing 5.

[0088] In order to improve the sealing performance and reduce the difficulty of assembly, optionally, step (1) also includes: installing the second seal 8 and the bearing 5 into the bearing cavity of the bearing seat 2, and filling grease between the second seal 8 and the bearing 5 to form a grease layer; installing the first seal 3 into the bearing cavity, and filling grease between the bearing 5 and the first seal 3 to form a grease layer; installing the end cover 4 into the installation cavity 21 of the bearing seat 2 and connecting it to the bearing seat 2; one end of the roller shaft 7 is successively inserted into the roller shaft hole 22 of the bearing seat 2, the second seal 8, the bearing 5, the first sealing assembly and the end cover 4, and extends out of the installation cavity 21.

[0089] Optionally, step (1) further includes: installing a retaining ring 6 into the limiting groove of the roller shaft 7. By installing the retaining ring 6, the roller shaft 7, the end sealing assembly and the cylinder body 1 are linked together to form an integrated structure, which reduces the difficulty of assembly and improves the structural stability.

[0090] From the above description and practice, it can be known that the end seal assembly, non-metallic roller and assembly method provided by the present application have the following advantages compared with the prior art: the above end seal assembly is adopted, and two seals provide sealing functions for the bearing from both sides respectively, so as to improve the overall sealing performance of the end seal assembly, and prevent water vapor, impurities, etc. from entering the bearing and causing wear to the bearing. On this basis, a grease layer is filled between each seal and the bearing, and the grease layer can absorb impurities such as dust and water vapor to prevent further diffusion into the bearing cavity, effectively prevent dust and water vapor from damaging the bearing, and further extend the service life of the bearing.

[0091] A person skilled in the art should understand that the above description is only a specific embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the scope of the present application should be included in the protection scope of the present application.

Claims

1. An end sealing assembly, characterized in that: include: Bearings; A bearing seat, wherein the bearing seat is provided with a mounting cavity, a bearing cavity and a roller shaft hole which are concentrically arranged and sequentially connected; the bearing is arranged in the bearing cavity; Two sealing members arranged opposite to each other, the two sealing members are arranged on opposite sides of the bearing respectively, and a grease layer is arranged between the sealing members and the bearing; An end cover is arranged in the installation cavity and connected to the bearing seat.

2. The end seal assembly according to claim 1, characterized in that: The bearing cavity comprises a first sealing cavity, a bearing installation cavity and a second sealing cavity which are connected in sequence. The bearing is arranged in the bearing installation cavity, and the two sealing members are respectively arranged in the first sealing cavity and the second sealing cavity.

3. The end seal assembly according to claim 2, characterized in that: The two seals are respectively a first seal and a second seal, the first seal and the second seal are respectively arranged in the first sealing cavity and the second sealing cavity, a first receiving groove is arranged between the first seal and the bearing, a second receiving groove is arranged between the second seal and the bearing, and the first receiving groove and the second receiving groove are both filled with the grease layer.

4. The end seal assembly according to claim 3, characterized in that: A labyrinth groove is arranged on an end surface of the first sealing member facing the end cover.

5. The end seal assembly according to claim 4, characterized in that: The end cover is snap-fitted and connected to the bearing seat, a protrusion capable of entering the labyrinth groove is provided on the side of the end cover facing the first sealing member, and the side of the end cover facing away from the first sealing member is in contact with a retaining ring.

6. The end seal assembly according to any one of claims 3 to 5, characterized in that: The second sealing member is provided with a guide groove on one end surface facing the roller shaft hole.

7. A non-metallic roller, characterized in that: include: Two end seal assemblies according to any one of claims 1 to 6; A roller shaft, wherein opposite ends of the roller shaft are respectively connected to the end sealing assemblies; The two end sealing assemblies are symmetrically arranged in the cylinder, and the opposite ends of the roller shaft extend out from the opposite ends of the cylinder respectively.

8. The non-metallic roller according to claim 7, characterized in that: Also includes: Two retaining rings, the two opposite ends of the roller shaft are respectively provided with limiting grooves, each of the limiting grooves is snap-connected with the retaining ring, and the retaining ring abuts against the end cover of the end sealing assembly.

9. A method for assembling a non-metallic roller according to claim 7 or 8, characterized in that: (1) Fix and install end seal assemblies at opposite ends of the roller shaft respectively; (2) The cylinder is sleeved on the outside of the end sealing assembly, and the opposite ends of the cylinder are respectively engaged and connected with the end sealing assemblies at corresponding positions.

10. The method for assembling a non-metallic roller according to claim 9, characterized in that: Step (1) also includes: installing a second seal and a bearing in the bearing cavity of the bearing seat, and filling grease between the second seal and the bearing to form a grease layer; installing a first seal in the bearing cavity, and filling grease between the bearing and the first seal to form a grease layer; installing an end cover in the installation cavity of the bearing seat and connecting it to the bearing seat; one end of the roller shaft is successively inserted into the roller shaft hole of the bearing seat, the second seal, the bearing, the first seal assembly and the end cover, and extends out of the installation cavity.

11. The method for assembling a non-metallic roller according to claim 10, characterized in that: Step (1) also includes: installing a retaining ring into the limiting groove of the roller shaft.

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