Detachable press roller bearing seat mechanism

Abstract

The utility model particularly relates to a detachable press roller bearing seat mechanism, which comprises a bearing seat, a bearing, a bearing seat welding piece, a clamp spring a, a round nut, a gasket, a retaining gasket, an oil seal a, a clamp spring b and an oil cup, the bearing is rotatably connected inside the bearing seat welding piece, the bearing is sleeved on the bearing seat and is in interference fit with the bearing seat, and the clamp spring a and the clamp spring b are arranged on the inner side of the bearing seat welding piece. The bearing seat is provided with a first step, the bearing is limited between the first step and the clamping spring a, the gasket is sleeved on the shaft seat located on an inner ring of the clamping spring a, the retaining gasket is tightly attached to the gasket and sleeved on the bearing seat, and the round nut is sleeved on the end portion of the bearing seat and connected with the retaining gasket. The oil seal a is arranged between the bearing seat and the bearing seat welding piece and is axially limited by the step and the clamp spring b; and the oil cup is fixed on the bearing seat welding piece. Whether the sealing performance of the bearing is good or not can be predicted in advance, durability and detachability are achieved, and damaged parts are convenient to replace.

Description

Technical Field

[0001] This utility model relates to the technical field of press roller bearing housing, specifically a detachable press roller bearing housing mechanism. Background Technology

[0002] The press roller bearing housing is located at both ends of the press roller in the drive harrow press assembly, serving to fix and connect the press roller to the assembly and enable its rotation. Currently, most commercially available products use standard bearing housings as the press roller bearing housings. If the bearings in these standard bearing housings wear out, the entire press assembly needs to be disassembled for replacement, and it's impossible to predict when the bearing will fail. If the bearing fails during field operations, replacement is time-consuming and labor-intensive (due to the weight of the press roller), affecting operational efficiency. Furthermore, due to limitations in their general design, existing standard bearing housings cannot fully adapt to extreme field environments and the harsh operating conditions of the drive harrow, resulting in poor seal durability and allowing contaminants (such as sand and dust) to penetrate the bearing, accelerating wear and reducing its lifespan. Some bearing housings also cannot withstand large axial loads. Utility Model Content

[0003] The purpose of this invention is to provide a durable, detachable bearing housing mechanism that can predict in advance whether the bearing sealing is good under harsh working conditions of a drive harrow in the field, in order to solve the problems of poor seal durability and the inability to predict bearing damage in advance in existing standard bearing housings.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a detachable press roller bearing housing mechanism, comprising a bearing housing, a bearing, a bearing housing welded assembly, a retaining ring a, a round nut, a washer, a backstop washer, an oil seal a, a retaining ring b, and an oil cup. The bearing is rotatably connected inside the bearing housing welded assembly and is fitted onto the bearing housing with an interference fit. The inner side of the bearing housing welded assembly is provided with retaining ring a and retaining ring b. The bearing housing has a first step, and the bearing is confined between the first step and retaining ring a. The washer is fitted onto the bearing housing located on the inner ring of retaining ring a. The backstop washer is fitted tightly against the washer onto the bearing housing. The round nut is fitted onto the end of the bearing housing and connected to the backstop washer. The bearing housing welded assembly has a step inside. The oil seal a is disposed between the bearing housing and the bearing housing welded assembly and is axially confined by the step and retaining ring b. The oil cup is fixed onto the bearing housing welded assembly.

[0005] Preferably, the bearing housing has a second step.

[0006] Preferably, it also includes an oil seal b, which is disposed adjacent to the oil seal a between the bearing housing and the bearing housing welded joint, and is axially limited by the second step of the bearing housing and the retaining ring b.

[0007] Preferably, it also includes a sealing ring, wherein the side end face of the bearing housing welded part has a groove, and the sealing ring is disposed in the groove.

[0008] Preferably, it also includes a round-headed Phillips head bolt, which is screwed onto the bearing housing weld assembly.

[0009] Compared with the prior art, the beneficial effects of this utility model are as follows: the bearing housing of this utility model is more durable than the existing standard bearing housing, which can reduce the frequency of user replacement and improve the efficiency of operation during the working season; the use of round nuts and self-aligning roller bearings allows this detachable bearing housing to not only withstand the load from the vertical direction of the press roller, but also withstand a large axial load (in actual use, users do not lift the machine to turn when turning at the end of the field as required, but will directly drag the machine to turn, in which case the drive harrow press roller will form a large axial load on the bearing housing); at the same time, this bearing housing can also predict the damage of the seal (oil seal) in advance by the resistance when greasing, so that users can replace the seal in time during idle time, avoiding the situation where the drive harrow press assembly is damaged during field operations, which affects the efficiency of operation. Attached Figure Description

[0010] Figure 1 This is a cross-sectional view of the detachable press roller bearing seat mechanism of this utility model;

[0011] Figure 2 This is an exploded view of the detachable press roller bearing seat mechanism of this utility model;

[0012] Figure 3 This is a schematic diagram showing the installation position of the detachable press roller bearing seat mechanism of this utility model.

[0013] In the diagram: bearing housing 1, bearing 2, bearing housing welded assembly 3, snap ring a 4, round nut 5, washer 6, anti-reverse washer 7, oil seal a 8, snap ring b 9, oil cup 10, oil seal b 11, sealing ring 12, round head Phillips bolt 13, first step 101, second step 102, step 30, press roller 100, side plate 200. Detailed Implementation

[0014] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0015] Example

[0016] Please see Figures 1 to 3 A detachable press roller bearing housing mechanism includes a bearing housing 1, a bearing 2, a bearing housing welded assembly 3, a retaining ring a4, a round nut 5, a washer 6, a backstop washer 7, an oil seal a8, a retaining ring b9, and an oil cup 10. In this embodiment, the bearing 2 is a self-aligning roller bearing, but a deep groove ball bearing can also be used, although its service life is shorter than that of a self-aligning roller bearing. The bearing 2 is rotatably connected inside the bearing housing welded assembly 3, and the bearing 2 is fitted onto the bearing housing 1 with an interference fit. As shown in the figure, the bearing housing 1 in this embodiment includes a base portion with an opening for inserting bolts to connect with the press roller 100, and four cylindrical sections with decreasing diameters, the smallest cylindrical section having external threads. As shown in the figure, the bearing housing welded assembly 3 has a base portion with an opening for inserting bolts to connect with the side plate 200 of the press assembly bracket, and also includes a cylindrical portion for connecting the bearing. The inner side of the bearing housing welded assembly 3 is provided with a retaining ring a4, a retaining ring b9, and a step 30. The bearing housing 1 has a first step 101. The bearing 2 is confined between the first step 101 and the retaining ring a4 to prevent axial movement of the bearing 2 on the bearing housing 1. A washer 6 is fitted on the bearing housing 1 located on the inner ring of the retaining ring a4. A retaining washer 7 is fitted tightly against the washer 6 on the bearing housing 1. A round nut 5 is screwed onto the end of the bearing housing 1 and connected to the retaining washer 7, further restricting the axial displacement of the bearing through the round nut 5. At the same time, the use of the round nut 5 and the self-aligning roller bearing allows this detachable bearing housing to withstand not only the load from the vertical direction of the press roller, but also a large axial load. An oil seal a8 is provided between the bearing housing 1 and the bearing housing welded assembly 3 and is axially confined by the step 30 and the retaining ring b9. An oil cup 10 is fixed on the bearing housing welded assembly 3, and the oil seal a8 serves a sealing function.

[0017] In a preferred embodiment of this invention, the bearing housing 1 has a second step 102.

[0018] As a preferred embodiment of this invention, an oil seal b11 is also included. The oil seal b11 is disposed adjacent to the oil seal a8 between the bearing housing 1 and the bearing housing welded part 3, and is axially limited by the second step 102 of the bearing housing 1 and the retaining ring b9.

[0019] In a preferred embodiment of this invention, a sealing ring 12 is also included. The side end face of the bearing housing welded component 3 has a groove, and the sealing ring 12 is disposed in the groove to achieve a seal between the bearing housing welded component 3 and the side plate 200. Alternatively, a seal can be achieved by applying adhesive or other sealing methods between the bearing housing welded component 3 and the side plate 200.

[0020] As a preferred embodiment of this invention, a round-headed Phillips head bolt 13 is also included. The round-headed Phillips head bolt 13 is screwed into the threaded hole of the bearing housing welded part 3. This round-headed Phillips head bolt 13 serves to facilitate the addition of grease before the bearing housing mechanism is assembled into the pressurization assembly. Specifically, when the round-headed Phillips head bolt is loosened, the internal cavity of the bearing housing is connected to the outside, and the resistance when applying grease will be reduced. If there is no threaded hole, the internal gas can only be discharged from the bearing and the seal ring, which may result in insufficient grease filling inside. At the same time, designing the round-headed Phillips head bolt at the top also serves as an observation hole, which can be used to observe whether the grease is fully applied.

[0021] The disassembly and installation steps of the bearing housing in this embodiment are as follows:

[0022] 1. Use power tools to remove all bolts from the side plate of the press assembly, remove the side plate, and remove the sealing ring 12;

[0023] 2. Use a flathead screwdriver or chisel to flatten the outer teeth of the locking washer 7 on the round nut 5, which is in the locked state. Then unscrew the round nut 5 and remove the locking washer 7 and the washer 6.

[0024] 3. Pull the bearing housing welded assembly 3 (the components connected to the bearing housing welded assembly include the self-aligning roller bearing, snap ring a, snap ring b, oil seal a and oil seal b) from the shaft of the bearing housing 1. If it cannot be pulled out, use a puller or other tools to help pull it out.

[0025] 4. The bearing housing welded assembly 3 contains critical components that may be damaged (self-aligning roller bearing and oil seals a and b). If bearing 2 is to be replaced, simply remove the retaining ring a and replace the self-aligning roller bearing using tools such as a puller; if oil seal a is to be replaced, simply remove the retaining ring b to replace oil seal a (replacing oil seal b does not require removing retaining ring b).

[0026] 5. After the bearing housing welded part 3 is removed, only the bearing housing 1 is connected to the press roller by bolts. If the bearing housing thread is damaged or the bearing housing is deformed, the bearing housing 1 can be replaced simply by removing the bolts after the above steps.

[0027] When users actually use the drive rake, operators need to perform maintenance (greasing) once per shift by applying grease through the grease cup (grease nipple) into the bearing housing. If there is high resistance when applying grease, it indicates that the bearing housing seal is normal; if there is low resistance when applying grease, and the resistance remains low even after the grease is full (and grease starts to seep from other places), it indicates that the oil seal is damaged and needs to be replaced in time.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A detachable press roller bearing housing mechanism, comprising a bearing housing and a bearing, characterized in that: It also includes a bearing housing welded assembly, a retaining ring a, a round nut, a washer, a backstop washer, an oil seal a, a retaining ring b, and an oil cup. The bearing is rotatably connected inside the bearing housing welded assembly, and the bearing is fitted onto the bearing housing with an interference fit. The bearing housing welded assembly has retaining rings a and b on its inner side. The bearing housing has a first step, and the bearing is confined between the first step and retaining ring a. The washer is fitted onto the bearing housing located on the inner ring of retaining ring a. The backstop washer is fitted tightly against the washer onto the bearing housing. The round nut is fitted onto the end of the bearing housing and connected to the backstop washer. The bearing housing welded assembly has a step inside. The oil seal a is disposed between the bearing housing and the bearing housing welded assembly and is axially confined by the step and retaining ring b. The oil cup is fixed onto the bearing housing welded assembly.

2. The detachable press roller bearing seat mechanism according to claim 1, characterized in that: The bearing housing has a second step.

3. The detachable press roller bearing seat mechanism according to claim 2, characterized in that: It also includes an oil seal b, which is disposed adjacent to the oil seal a between the bearing housing and the bearing housing welded joint, and is axially limited by the second step of the bearing housing and the retaining ring b.

4. The detachable press roller bearing seat mechanism according to claim 1, characterized in that: It also includes a sealing ring, wherein the side end face of the bearing housing welded part has a groove, and the sealing ring is disposed in the groove.

5. The detachable press roller bearing seat mechanism according to claim 1, characterized in that: It also includes round-headed Phillips head bolts, which are screwed onto the bearing housing weld assembly.

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