Backstop structure facilitating oil injection and discharge of electric roller

Abstract

The utility model discloses a backstop structure facilitating oil injection and discharge of an electric roller, and relates to the technical field of backstops, the backstop structure comprises the electric roller, a bearing is arranged in the electric roller, a backstop inner ring is connected to the outer side circumferential surface of the bearing, a backstop outer ring is connected to the outer side wall of the backstop inner ring, and the backstop outer ring is connected to the outer side wall of the bearing. A backstop is in interference connection with an outer ring of the backstop, a flange plate is arranged on the backstop, notches are symmetrically formed in the flange plate, an oil injection hole is formed in the upper end of a flange plate shell, an oil discharge hole is formed in the lower end of the flange plate shell, and thin cover plates are arranged on the notches. Under the condition that the overall strength and performance of the backstop are not affected, oil injection and discharge devices are convenient to install, normal oil injection and discharge operation requirements are met, and impurities are prevented from entering the electric roller and a motor and a bearing are protected by arranging a thin cover plate and an end cover.

Description

Technical Field

[0001] This utility model relates to the field of backstop technology, specifically to a backstop structure that facilitates oil injection and drainage by an electric drum. Background Technology

[0002] A backstop is a key component of an electric roller conveyor, its main function being to prevent the roller from reversing when the machine stops or in case of an unexpected situation. In belt conveyor systems, if the electric roller does not have a backstop when the conveyor stops, the roller may rotate in reverse under the influence of gravity or other external forces. This can not only cause material backflow, affecting the production process, but also potentially damage the equipment or even cause a safety accident. A backstop can quickly brake the roller the instant it stops rotating, preventing it from reversing and ensuring the safety and stability of the equipment and production.

[0003] In traditional electric roller structures with internal backstops, the backstop, bearings, and related components are closely arranged. The backstop usually occupies a large internal space, making the space around the bearing where the backstop is installed extremely cramped. It is difficult to find suitable locations for the oil injection and drainage holes. When the bearing where the backstop is installed is being injected or drained, it will be interfered with by the backstop, making it difficult to carry out the oil injection and drainage operations. As a result, the bearing does not receive sufficient and timely lubrication, and the friction between its internal rolling elements and raceways is aggravated. Utility Model Content

[0004] The purpose of this utility model is to provide a backstop structure for convenient oil injection and drainage of electric drums, and to solve the following technical problems: In the traditional electric drum structure with internal backstop, it is difficult to find a suitable setting position for the oil injection hole and the oil drainage hole. The bearing at the location where the backstop is installed will be interfered with by the backstop during oil injection and drainage, making it difficult to realize the oil injection and drainage operation.

[0005] The objective of this utility model can be achieved through the following technical solutions:

[0006] A backflow preventer structure for convenient oil injection and drainage of an electric drum includes an electric drum body, a bearing is provided inside the electric drum body, an inner ring of a backflow preventer is connected to the outer circumferential surface of the bearing, an outer ring of a backflow preventer is connected to the outer wall of the inner ring of the backflow preventer, a backflow preventer is interference-fitted to the outer ring of the backflow preventer, and a flange is provided on the backflow preventer, with symmetrical slots opened on the flange.

[0007] As a further aspect of this utility model: a shaft retaining ring is provided between the bearing and the inner ring of the backstop, the shaft retaining ring being used to restrict the movement of the inner ring of the backstop in the axial direction.

[0008] As a further embodiment of this utility model: the upper end of the backstop housing is provided with an oil injection hole, and the lower end of the backstop housing is provided with an oil drain hole.

[0009] As a further embodiment of this utility model, an end cap is provided on the electric roller body.

[0010] As a further embodiment of this utility model: the groove has a waist-shaped structure design, which facilitates the installation of oil injection and drainage devices.

[0011] As a further embodiment of this utility model: the oil injection hole and the oil drain hole are arranged directly opposite the two slots.

[0012] As a further embodiment of this utility model: a thin cover plate is provided on the slot, the thin cover plate being used to prevent large particles of impurities from entering the motor.

[0013] As a further embodiment of this utility model: the axes of the electric roller body, the inner ring of the backstop, and the outer ring of the backstop coincide.

[0014] The beneficial effects of this utility model are:

[0015] (1) This utility model facilitates the installation of oil injection and drainage devices by symmetrically opening waist-shaped slots on the flange without affecting the overall strength and performance of the check valve, thus meeting the normal oil injection and drainage operation requirements. The overall design is highly practical and easy to maintain and operate.

[0016] (2) This utility model prevents impurities from entering the electric drum through the design of thin cover plate and end cover, protects the motor and bearings, and extends the service life of the equipment. Attached Figure Description

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

[0018] Figure 1 This is a schematic diagram of the overall structure of the backstop device of this utility model;

[0019] Figure 2 This is a schematic diagram of the inner and outer rings of the backstop of this utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the waist-shaped hole of the backstop device of this utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the thin cover plate of this utility model.

[0022] In the diagram: 1. Electric drum body; 2. Bearing; 3. Inner ring of backstop; 4. Outer ring of backstop; 5. Backstop; 6. Flange; 7. Groove; 8. Shaft retaining ring; 9. Oil injection hole; 10. Oil drain hole; 11. End cover; 12. Thin cover plate. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-4 As shown, this utility model is a backstop structure for convenient oil injection and drainage of an electric drum, including an electric drum body 1. A bearing 2 is provided inside the electric drum body 1. A backstop inner ring 3 is connected to the outer circumferential surface of the bearing 2. A backstop outer ring 4 is connected to the outer wall of the backstop inner ring 3 through a locking mechanism. A backstop 5 is interference-fitted to the backstop outer ring 4. The backstop outer ring 4 and the backstop 5 are fixed by friction through interference fit (tight fit). A flange 6 is provided on the backstop 5. Grooves 7 are symmetrically opened on the flange 6.

[0025] A shaft retaining ring 8 is provided between the bearing 2 and the inner ring 3 of the backstop. The shaft retaining ring 8 is used to restrict the movement of the inner ring 3 of the backstop on the bearing 2 in the axial direction.

[0026] The upper end of the backstop 5 housing is provided with an oil injection hole 9, and the lower end of the backstop 5 housing is provided with an oil drain hole 10. Lubricating oil is added through the oil injection hole 9 to ensure that the moving parts such as the bearing 2 and gears are fully lubricated, reducing friction and wear. The oil drain hole 10 is used to drain old oil and impurities to keep the oil clean. The oil injection hole 9 and the oil drain hole 10 are respectively located on both sides of the bearing 2.

[0027] The electric drum body 1 is provided with an end cover 11. The end cover 11 cooperates with the bearing 2 to reduce vibration and friction during operation. At the same time, it prevents dust, moisture and other contaminants from entering the interior of the electric drum body 1, protecting the motor and bearing 2.

[0028] The slot 7 has an oblong design, which facilitates the installation of oil injection and drainage devices. The size of the slot 7 meets the requirements of normal oil injection and drainage operations.

[0029] The oil injection hole 9 and the oil drain hole 10 are positioned directly opposite the two slots 7 to facilitate the installation of the oil injection and drain positions.

[0030] A thin cover plate 12 is provided on the slot 7. The thin cover plate 12 is used to prevent large particles of impurities from entering the motor, thereby effectively protecting the motor and extending its service life.

[0031] The electric drum body 1, the inner ring 3 of the backstop, and the outer ring 4 of the backstop are aligned.

[0032] Working principle: When the backstop 5 is in operation, the electric drum body 1, end cover 11, and outer ring 4 of the backstop rotate while the bearing 2 and inner ring 3 of the backstop remain stationary. The locking mechanism inside the backstop 5 quickly locks when rotating in the reverse direction, preventing the electric drum body 1 from moving in the opposite direction. Through this design, the electric drum body 1 can rotate freely in the normal working direction, but will be immediately locked by the backstop 5 when rotating in the reverse direction, thus achieving a reliable backstop function. The oil injection hole 9 and the oil drain hole 10 realize the injection and discharge of lubricating oil, ensuring the lubrication effect of the bearing 2. The thin cover plate 12 and end cover 11 prevent impurities from entering the electric drum. The shaft retaining ring 8 and the shaft center coincident design ensure the stability of the structure and the smoothness of operation. By opening two symmetrical slots 7 on the flange 6, the oil injection and oil draining devices can be conveniently installed without affecting the overall strength and performance of the backstop 5, meeting the normal oil injection and draining operation requirements. The overall design is practical and easy to maintain and operate.

[0033] The above description provides a detailed account of one embodiment of the present invention. However, this description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A check valve structure for convenient electric drum oil injection and drainage, characterized in that, The device includes an electric drum body (1), inside which a bearing (2) is provided. A backstop inner ring (3) is connected to the outer circumferential surface of the bearing (2). A backstop outer ring (4) is connected to the outer wall of the backstop inner ring (3). A backstop (5) is interference-connected to the backstop outer ring (4). A flange (6) is provided on the backstop (5). Grooves (7) are symmetrically opened on the flange (6).

2. The backstop structure for convenient electric drum oil injection and drainage according to claim 1, characterized in that, A shaft retaining ring (8) is provided between the bearing (2) and the inner ring (3) of the backstop, and the shaft retaining ring (8) is used to restrict the movement of the inner ring (3) of the backstop in the axial direction.

3. The backstop structure for convenient electric drum oil injection and drainage according to claim 1, characterized in that, The upper end of the backstop (5) housing is provided with an oil injection hole (9), and the lower end of the backstop (5) housing is provided with an oil drain hole (10).

4. The backstop structure for convenient electric drum oil injection and drainage according to claim 1, characterized in that, An end cap (11) is provided on the electric roller body (1).

5. The backstop structure for convenient electric drum oil injection and drainage according to claim 1, characterized in that, The slot (7) has a waist-shaped structure design, which facilitates the installation of oil injection and drainage devices.

6. The backstop structure for convenient electric drum oil injection and drainage according to claim 3, characterized in that, The oil injection hole (9) and the oil discharge hole (10) are positioned opposite to the two slots (7).

7. The backstop structure for convenient electric drum oil injection and drainage according to claim 1, characterized in that, A thin cover plate (12) is provided on the slot (7), which is used to prevent large particles of impurities from entering the motor.

8. The backstop structure for convenient electric drum oil injection and drainage according to claim 1, characterized in that, The electric drum body (1), the inner ring (3) of the backstop, and the outer ring (4) of the backstop are aligned.

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