A new roll end shaft sleeve assembly

Abstract

The utility model discloses a novel roller end shaft sleeve assembly relates to the coupling technical field, and this shaft sleeve assembly includes roller end shaft sleeve, connecting disc, screw rod, the roller end shaft sleeve is equipped with the threaded hole, the connecting disc is equipped with screw rod hole, the screw rod is passed screw rod hole and the bolt hole threaded connection of roller end shaft sleeve, the screw rod is cooperated with the nut, on the connecting structure, adopt "screw rod + spacer + nut + washer" combination, and the spacer can guarantee the coaxial degree and the stress uniformity when screw rod connects, and the double washer can enhance the anti -loose effect, the spline is built -in, and the number of teeth modulus of external spline is limited, can choose the parameter flexibly according to actual transmission demand, adapts more working condition, and the built -in structure still increases the contact length of internal spline and external spline, improves the torque transmission efficiency, is provided with the oil storage space on the both sides of external spline and internal spline, can store more lubricating grease, reduces the lubricating grease loss, continuously provides the lubrication for spline, reduces the abrasion.

Description

Technical Field

[0001] This utility model relates to the field of coupling technology, specifically a novel roller end bushing assembly. Background Technology

[0002] Drive shafts are widely used in industrial production, especially in steel production enterprises. With the continuous improvement of rolling mill technology and automation, higher requirements are placed on the transmission accuracy and stability of drive shafts. Roll end bushings, as one of the main connecting components between the coupling and the rolls, play a crucial role in steel rolling. During steel rolling, steel mills mainly utilize the pressure generated by the rolling of a pair or a set of rolls to roll the steel. The rolls primarily bear the dynamic and static loads during rolling, as well as the effects of wear and temperature changes.

[0003] Existing roller end bushing assemblies such as Figure 7 As shown: 1. With external splines, the selection of spline tooth count and module is limited, and the mating length is greatly affected by the site conditions; 2. The connecting disc and the bushing are connected by screws, which are prone to loosening or even breaking under vibration and impact. 3. The spline and the bearing are connected in space, but the bearing is lubricated with thin oil or oil-air, while the spline is lubricated with glycerin. The two interfere with each other. 4. There is no oil reservoir at the spline, resulting in insufficient grease that is easily lost. Based on this, a new type of roller end bushing assembly is now provided, which can eliminate the drawbacks of existing bushing assemblies. Utility Model Content

[0004] The purpose of this invention is to provide a novel roller end bushing assembly to solve the problems in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A novel roller end bushing assembly includes a roller end bushing, a connecting disc, and a screw. The roller end bushing has a threaded hole, and the connecting disc has a screw hole. The screw passes through the screw hole and is threadedly connected to the bolt hole of the roller end bushing. The screw is threadedly fitted with a nut.

[0006] Based on the above technical solutions, this utility model also provides the following optional technical solutions: In one alternative: a spacer is installed in the screw hole of the connecting disc, and the screw passes through the spacer.

[0007] In one alternative: a washer is provided between the nut and the connecting disc, and the screw passes through the washer.

[0008] In one alternative: a disc spring is provided between the washer and the connecting plate, and the screw passes through the disc spring.

[0009] In one alternative: the connecting disc is provided with an external spline, and the roller end bushing is provided with an internal spline, with the external spline and the internal spline slidingly engaged.

[0010] In one alternative: oil storage spaces are provided on both sides of the external spline and the internal spline.

[0011] In one alternative: a bearing mounting groove is provided on the circumference of the roller end bushing.

[0012] In one alternative: the external spline is an involute spline.

[0013] In one alternative: the external spline is a rectangular spline.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: In terms of connection structure, this utility model adopts a combination of "screw + spacer + nut + washer". The spacer can ensure the coaxiality and uniform force distribution when the screw is connected, and the double washer can enhance the anti-loosening effect.

[0015] This invention adds a disc spring, whose elastic properties can offset the vibration and impact during the rolling process, avoiding the problems of loosening and breaking of traditional screw connections, and extending the service life of the components.

[0016] This utility model adopts an internal spline design, which eliminates the limitation of the number of teeth and module of external splines. Parameters can be flexibly selected according to actual transmission needs to adapt to more working conditions. The internal structure increases the contact length between the internal and external splines, improves torque transmission efficiency, and can better cope with the dynamic and static loads borne by the rolls, ensuring transmission accuracy.

[0017] This invention separates the spline from the bearing mounting groove, ensuring that the glycerin lubrication of the spline and the thin oil lubrication of the bearing do not interfere with each other, thus preventing the mixing of lubricating media from affecting the lubrication effect.

[0018] This invention provides oil storage spaces on both sides of the outer and inner splines, which can store more grease, reduce grease loss, continuously lubricate the splines, and reduce wear. Attached Figure Description

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

[0020] Figure 2 For the present utility model Figure 1 Enlarged view of point A in the middle.

[0021] Figure 3 This is a cross-sectional view of the gasket of this utility model.

[0022] Figure 4This is a cross-sectional view of the disc spring of this utility model.

[0023] Figure 5 This is a cross-sectional view of the spacer sleeve of this utility model.

[0024] Figure 6 This is a schematic diagram of the screw structure of this utility model.

[0025] Figure 7 This is a schematic diagram of the existing roller end bushing assembly.

[0026] Figure 8 This is a schematic diagram of the involute spline structure of this utility model.

[0027] Figure 9 This is a schematic diagram of the rectangular spline structure of this utility model.

[0028] Figure label annotations: 1 Roller end bushing, 2 Connecting disc, 3 Washer, 4 Screw, 5 Nut, 6 Disc spring, 7 Spacer, 8 External spline, 9 Bearing mounting groove. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0030] In one embodiment, such as Figures 1-9 As shown, a novel roller end bushing assembly includes a roller end bushing 1, a connecting disc 2, and a screw 4. The roller end bushing 1 has a threaded hole, and the connecting disc 2 has a screw hole. The screw 4 passes through the screw hole and is threadedly connected to the bolt hole of the roller end bushing 1. A nut 5 is threadedly fitted onto the screw 4.

[0031] In one embodiment, a spacer 7 is installed in the screw hole of the connecting disc 2, and the screw 4 passes through the spacer 7.

[0032] In one embodiment, a washer 3 is provided between the nut 5 and the connecting disc 2, and the screw 4 passes through the washer 3.

[0033] In one embodiment, a disc spring 6 is provided between the washer 3 and the connecting plate 2, and the screw 4 passes through the disc spring 6.

[0034] The roller end bushing 1 is connected to the connecting plate 2 by a screw 4, and a spacer 7 is added, along with a nut 5 and double washers 3 to prevent loosening and improve connection stability.

[0035] In one embodiment, the connecting disc 2 is provided with an external spline 8, and the roller end bushing 1 is provided with an internal spline, with the external spline 8 and the internal spline slidingly engaged.

[0036] The use of an internal structure for the external spline 8 removes limitations on the selection of the number of teeth and module of the external spline 8. This increases the contact length of the external spline 8, thereby enhancing torque transmission capability.

[0037] In one embodiment, the roller end bushing 1 is provided with a chamfer.

[0038] In one embodiment, oil storage spaces are provided on both sides of the external spline 8 and the internal spline.

[0039] An oil reservoir is added at point 8 of the external spline to improve lubrication.

[0040] In one embodiment, a bearing mounting groove 9 is provided on the circumferential side of the roller end bushing.

[0041] In one embodiment, the external spline 8 is an involute spline. Different spline types are selected according to different application scenarios.

[0042] In one embodiment, the external spline 8 is a rectangular spline.

[0043] The above embodiments disclose a novel roller end bushing assembly, the specific working principle and process of which are as follows: The use of an internal structure for external spline 8 allows for greater freedom in selecting the number of teeth and module of external spline 8.

[0044] The contact length of the external spline 8 is increased, thereby enhancing the torque transmission capability.

[0045] The roller end bushing 1 is connected to the connecting plate 2 by a screw 4, and a spacer 7 is added, along with a nut 5 and double washers 3 to prevent loosening and improve connection stability.

[0046] The inner spline of the roller end bushing 1 is designed to be separate from the bearing mounting groove 9, so that each is lubricated separately and avoids mutual interference.

[0047] Oil storage spaces are added on both sides of the outer spline 8 to improve lubrication.

[0048] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A novel roller end bushing assembly, characterized in that, It includes a roller end bushing (1), a connecting plate (2), and a screw (4). The roller end bushing (1) has a threaded hole, and the connecting plate (2) has a screw hole. The screw (4) passes through the screw hole and is threadedly connected to the bolt hole of the roller end bushing (1). The screw (4) is threadedly fitted with a nut (5).

2. The novel roller end bushing assembly according to claim 1, characterized in that, A spacer (7) is installed in the screw hole of the connecting plate (2), and the screw (4) passes through the spacer (7).

3. The novel roller end bushing assembly according to claim 1, characterized in that, A washer (3) is provided between the nut (5) and the connecting disc (2), and the screw (4) passes through the washer (3).

4. A novel roller end bushing assembly according to claim 3, characterized in that, A disc spring (6) is provided between the washer (3) and the connecting plate (2), and the screw (4) passes through the disc spring (6).

5. A novel roller end bushing assembly according to claim 1, characterized in that, The connecting disc (2) is provided with an external spline (8), and the roller end bushing (1) is provided with an internal spline. The external spline (8) and the internal spline slide together.

6. A novel roller end bushing assembly according to claim 5, characterized in that, Oil storage spaces are provided on both sides of the external spline (8) and the internal spline.

7. A novel roller end bushing assembly according to claim 1, characterized in that, The roller end bushing (1) has a bearing mounting groove (9) on its circumference.

8. A novel roller end bushing assembly according to claim 5, characterized in that, The external spline (8) is an involute spline.

9. A novel roller end bushing assembly according to claim 5, characterized in that, The external spline (8) is a rectangular spline.

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