Waterproof guide wheel bearing capable of being lubricated and positioned in one-way mode

Abstract

The utility model relates to a one-way positioning lubricated waterproof guide wheel bearing, and belongs to the technical field of external bearings. According to the technical scheme, a deep groove ball bearing (3) is installed at the lower end of a guide wheel shaft (9), the guide wheel shaft (9) and the deep groove ball bearing (3) are installed inside a guide wheel body (2), a check ring I (4) is matched with the deep groove ball bearing (3), the check ring I (4) is clamped on the guide wheel shaft (9), a positioning gland (6) is pressed on a bearing outer ring of the deep groove ball bearing (3), a framework oil seal (5) is arranged on the positioning gland (6), and a check ring II (7) is clamped on the guide wheel body (2). The check ring II (7) is matched with the positioning gland (6); the upper end of the guide wheel shaft (9) is fixed after penetrating through the equipment base (1), the oil injection head (11) is in threaded connection with the upper end of the guide wheel shaft (9), and the guide wheel shaft (9) is provided with a central through hole (12). The guide wheel bearing has the advantages that normal work of the guide wheel bearing under the wet water mist working condition can be met, and the service life of the guide wheel bearing is prolonged.

Description

Technical Field

[0001] The utility model relates to a one-way positioned lubricated and waterproof guide wheel bearing, belonging to the technical field of external bearings in the metallurgical industry. Background Art

[0002] The skin-pass mill of the cold rolling post-processing line mostly adopts the wet skin-pass mode, that is, during the rolling process of the skin-pass mill, a reciprocating high-pressure water system is used to spray desalted water with a pressure of 160 bar into the frame to meet production needs. The high-pressure water equipment body moves on the slide through the guide wheel bearing.

[0003] The existing guide wheel bearings could not meet the requirements for normal use in wading conditions, and guide wheel jamming and other faults frequently occurred. Moreover, it was impossible to replenish oil and lubricate them in time after the jamming occurred, which further aggravated the fault. Utility Model Content

[0004] The purpose of the utility model is to provide a one-way positioned lubricated and waterproof guide wheel bearing, which can meet the normal operation of the guide wheel bearing under humid water mist conditions, extend the service life of the guide wheel bearing, and solve the problems existing in the background technology.

[0005] The technical solution of the utility model is:

[0006] A one-way positioning lubricable and waterproof guide wheel bearing comprises an equipment base, a guide wheel body, a deep groove ball bearing, a retaining ring I, a skeleton oil seal, a positioning pressure cover, a retaining ring II, a guide wheel shaft, a nut, an oiling head and a center through hole. The deep groove ball bearing is installed at the lower end of the guide wheel shaft, and the guide wheel shaft and the deep groove ball bearing are installed inside the guide wheel body in a transition fit manner. The retaining ring I cooperates with the deep groove ball bearing, and the retaining ring I is clamped on the guide wheel shaft. The positioning pressure cover is pressed on the outer ring of the deep groove ball bearing. The positioning pressure cover is provided with a skeleton oil seal, and the retaining ring II is clamped on the guide wheel body, and the retaining ring II cooperates with the positioning pressure cover; the upper end of the guide wheel shaft passes through the equipment base and is fixed by a nut, the oiling head is threadedly connected to the upper end of the guide wheel shaft, and the guide wheel shaft is provided with a center through hole connected to the oiling head.

[0007] A spacer is provided between the equipment base and the guide wheel body.

[0008] The guide wheel shaft is provided with a clamping groove matched with the retaining ring I, and the upper part of the guide wheel body is provided with a clamping groove matched with the retaining ring II.

[0009] The skeleton oil seal is embedded in the positioning gland.

[0010] The beneficial effects of the utility model are: simple structure, low production cost, easy replacement of parts, and can meet the normal operation of the guide wheel bearing under humid water mist working conditions, thereby extending the service life of the guide wheel bearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1This is a schematic diagram of the utility model installed on the base of the equipment;

[0012] Figure 2 This is the assembly structure diagram of the guide wheel bearing of the utility model;

[0013] Figure 3 This is the main view of the guide wheel shaft;

[0014] Figure 4 This is the assembly drawing of the bearing installed on the guide wheel shaft;

[0015] Figure 5 This is the assembly diagram of the skeleton oil seal on the gland;

[0016] In the figure: equipment base 1, guide wheel body 2, bearing 3, retaining ring I 4, skeleton oil seal 5, positioning cover 6, retaining ring II 7, spacer 8, guide wheel shaft 9, nut 10, oil filling head 11, center hole 12. DETAILED DESCRIPTION

[0017] The present invention will be further described below with reference to the accompanying drawings and examples.

[0018] Refer to the attached Figure 1-5 , a one-way positioning lubricated and waterproof guide wheel bearing, comprising an equipment base 1, a guide wheel body 2, a deep groove ball bearing 3, a retaining ring I4, a skeleton oil seal 5, a positioning pressure cover 6, a retaining ring II7, a guide wheel shaft 9, a nut 10, an oiling head 11 and a center through hole 12. The deep groove ball bearing 3 is installed at the lower end of the guide wheel shaft 9, and the guide wheel shaft 9 and the deep groove ball bearing 3 are installed inside the guide wheel body 2 in a transition fit manner. The retaining ring I4 cooperates with the deep groove ball bearing 3, and the retaining ring I4 is clamped on the guide wheel shaft 9. The positioning pressure cover 6 is pressed on the bearing outer ring of the deep groove ball bearing 3, and the positioning pressure cover 6 is provided with a skeleton oil seal 5, and the retaining ring II7 is clamped on the guide wheel body 2, and the retaining ring II7 cooperates with the positioning pressure cover 6; the upper end of the guide wheel shaft 9 passes through the equipment base 1 and is fixed by a nut 10, and the oiling head 11 is threadedly connected to the upper end of the guide wheel shaft 9, and the guide wheel shaft 9 is provided with a center through hole 12 connected to the oiling head 11.

[0019] In this embodiment, refer to the attached Figure 1 The one-way positioning lubricable waterproof guide wheel bearing includes an equipment base 1, a guide wheel body 2, a deep groove ball bearing 3, a retaining ring I 4, a skeleton oil seal 5, a positioning gland 6, a retaining ring II 7, a spacer 8, a guide wheel shaft 9, a nut 10 and an oiling head 11, wherein:

[0020] The equipment base 1 is the high-pressure water equipment base 1. The high-pressure water equipment moves on the slideway through the guide wheel bearing. During the rolling process of the skin-pass mill, the high-pressure water system sprays desalted water with a pressure of 160 bar into the frame to meet production needs.

[0021] The guide wheel body 2 is made of GCr15 material, with an outer diameter of 62 mm and an inner diameter of 47 mm. It adopts a basic hole transition fit with the deep groove ball bearing 3.

[0022] The guide wheel shaft 9 is made of Q235 material, the basic size of the bearing seat is 25mm, and it adopts a base shaft transition fit with the groove ball bearing 3. A center through hole 12 is provided inside the guide wheel shaft 2, and a threaded buckle is tapped on the top to connect with the oiling head 11.

[0023] Reference Figure 4 First, install the two 6005 deep groove ball bearings 3 on the bottom of the guide wheel shaft 9 through transition fit, leaving no gap, and expand the retaining ring Ⅰ4 and fit it into the groove of the guide wheel shaft 9.

[0024] Reference Figure 5 , embed the skeleton oil seal 5 into the interior of the positioning pressure cover 7, and the cross section of the skeleton oil seal 5 is firmly attached to the inner cross section of the positioning end cover 7.

[0025] Reference Figure 2 , install the assembled guide wheel shaft 9 and deep groove ball bearing 3 inside the guide wheel body 2 in a transition fit manner, and the outer ring of the lower bearing is firmly attached to the bottom boss of the guide wheel body 2; buckle the assembled positioning end cover 7 on the guide wheel body 2, so that the lower surface of the positioning end cover 7 is firmly attached to the outer ring of the bearing at the top of the guide wheel, and clamp the retaining ring II 7 in the groove of the guide wheel body 2.

[0026] Refer to the attached Figure 1 After the assembled guide wheel bearing is fitted with spacer washer 8 and inserted into the center hole of the equipment base 1, nut 10 is threadedly connected to the guide wheel shaft 9 and tightened. A 2mm gap is left between the bottom surface of the equipment base 1 and the guide wheel surface to ensure normal rotation of the guide wheel. The oiling nipple 11 is then installed on the inner thread at the top of the guide wheel shaft 9.

Claims

1. A one-way positioning lubricable waterproof guide wheel bearing, characterized by: The device comprises an equipment base (1), a guide wheel body (2), a deep groove ball bearing (3), a retaining ring I (4), a skeleton oil seal (5), a positioning cover (6), a retaining ring II (7), a guide wheel shaft (9), a nut (10), an oiling head (11) and a center through hole (12). The deep groove ball bearing (3) is installed at the lower end of the guide wheel shaft (9). The guide wheel shaft (9) and the deep groove ball bearing (3) are installed inside the guide wheel body (2) in a transition fit manner. The retaining ring I (4) cooperates with the deep groove ball bearing (3). The retaining ring I (4) It is clamped on the guide wheel shaft (9), and the positioning pressure cover (6) is pressed on the outer ring of the deep groove ball bearing (3). A skeleton oil seal (5) is provided on the positioning pressure cover (6). The retaining ring II (7) is clamped on the guide wheel body (2). The retaining ring II (7) cooperates with the positioning pressure cover (6); the upper end of the guide wheel shaft (9) passes through the equipment base (1) and is fixed by a nut (10). The oil filling head (11) is threadedly connected to the upper end of the guide wheel shaft (9), and the guide wheel shaft (9) is provided with a central through hole (12) connected to the oil filling head (11).

2. The one-way positioning lubricable and waterproof guide wheel bearing according to claim 1, characterized in that: A spacer (8) is provided between the equipment base (1) and the guide wheel body (2).

3. The one-way positioning lubricable and waterproof guide wheel bearing according to claim 1, characterized in that: The guide wheel shaft (9) is provided with a slot that matches the retaining ring I (4), and the upper part of the guide wheel body (2) is provided with a slot that matches the retaining ring II (7).

4. The one-way positioning lubricable and waterproof guide wheel bearing according to claim 1, characterized in that: The skeleton oil seal (5) is embedded in the interior of the positioning gland (6).

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