Self-lubricating mining heading machine rack

Abstract

The utility model discloses a self-lubricating mining heading machine rack. According to the technical scheme, the shovel comprises a rack and a shovel plate in shaft connection with the rack, the rack is connected with the shovel plate through a self-lubricating bearing assembly, and the self-lubricating bearing assembly comprises a rotating shaft, sliding bearings arranged at the two ends of the rotating shaft in a sleeving mode and bearing sleeves arranged on the sliding bearings in a sleeving mode. An installation flange connected with a first bearing installation hole in the rear end of the shovel plate and an oil inlet hole extending in the axial direction are arranged in the center of the rotating shaft, an oil outlet hole communicated with the oil inlet hole is formed in the position, corresponding to the rear end of the bearing sleeve, of the rotating shaft, and oil grooves arranged circumferentially are formed in the inner wall of the sliding bearing.

Description

Technical Field

[0001] The utility model belongs to the field of mining tunneling machines, and in particular relates to a frame of a mining tunneling machine. Background Art

[0002] Tunnel boring machines (TBMs) play a vital role in underground mining operations, serving as key equipment for improving mining efficiency and ensuring construction safety. Currently, the Tunnel boring machine frame, which connects the various components of the machine, is subject to constant stress during operation, causing deformation at the movable points, leading to rotational jamming and ultimately rendering the Tunnel boring machine inoperable. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a self-lubricating mining roadheader frame.

[0004] To solve the above problems, the technical solution adopted by the present invention includes: a frame and a shovel plate axially connected to the frame, characterized in that: the frame is connected to the shovel plate through a self-lubricating bearing assembly, the self-lubricating bearing assembly includes a rotating shaft, sliding bearings sleeved on both ends of the rotating shaft and a bearing sleeve sleeved on the sliding bearing, the center of the rotating shaft is provided with a mounting flange connected to the first bearing mounting hole at the rear end of the shovel plate and an axially extending oil inlet hole, the rotating shaft is provided with an oil outlet hole connected to the oil inlet hole corresponding to the rear end of the bearing sleeve, the inner wall of the sliding bearing is provided with circumferentially arranged oil grooves, and the front end of the frame is provided with a second bearing mounting hole adapted to the bearing sleeve.

[0005] The self-lubricating mining tunneling machine frame is characterized in that a mounting flange is integrally formed at the rear end of the bearing sleeve, and is connected to the frame via the mounting flange.

[0006] The self-lubricating mining tunneling machine frame is characterized in that a bearing bracket is provided at the end of the rotating shaft, the front end of the bearing bracket is provided with a sleeve that closely matches the mounting flange, and the rear end is provided with a bearing support seat connected to the rotating shaft.

[0007] The self-lubricating mining tunneling machine frame is characterized in that an oil seal groove is provided at the end of the rotating shaft corresponding to the position of the bearing support seat.

[0008] The self-lubricating mining tunneling machine frame is characterized in that an oil filling port connected to the rotating shaft is provided at the upper end of the bearing support seat.

[0009] The self-lubricating mining tunneling machine frame is characterized in that a bearing mounting sleeve is welded to the end of the shovel plate, and a reinforcing plate is welded to the outside of the bearing mounting sleeve, which is connected to the mounting flange of the rotating shaft through the bearing mounting sleeve.

[0010] The self-lubricating mining tunneling machine frame is characterized in that an oil storage cavity is provided between the bearing bracket and the mounting flange, and the oil inlet hole is communicated with the oil storage cavity.

[0011] The advantages of the self-lubricating mining tunneling machine frame of the present invention are as follows: by injecting lubricating oil into the oil inlet hole of the self-lubricating bearing assembly, the bearing can maintain a self-lubricating state, thereby effectively preventing the problem of jamming of the active point.

[0012] The present invention will be further described below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic structural diagram of the frame of the self-lubricating mining tunneling machine of the utility model;

[0014] Figure 2 It is a structural diagram of the frame of the utility model;

[0015] Figure 3 This is a structural diagram of the shovel plate of the utility model;

[0016] Figure 4 This is a cross-sectional view of the self-lubricating bearing assembly of the utility model;

[0017] Figure 5 It is an exploded view of the self-lubricating bearing assembly of the utility model. DETAILED DESCRIPTION

[0018] Reference Figure 1-5 As shown, the self-lubricating mining tunneling machine frame of the present invention includes a frame 1 and a shovel plate 2 axially connected to the frame 1. The frame 1 is connected to the shovel plate 2 through a self-lubricating bearing assembly 3. The self-lubricating bearing assembly 3 includes a rotating shaft 4, sliding bearings 5 sleeved on both ends of the rotating shaft 4, and a bearing sleeve 19 sleeved on the sliding bearing 5. The center of the rotating shaft 4 is provided with a mounting flange 6 connected to the first bearing mounting hole 20 at the rear end of the shovel plate 2 and an axially extending oil inlet hole 7. The rotating shaft 4 is provided with an oil outlet hole 8 connected to the oil inlet hole 7 at the rear end corresponding to the bearing sleeve 19. The inner wall of the sliding bearing 5 is provided with circumferentially arranged oil grooves 9, and the front end of the frame 1 is provided with a second bearing mounting hole 10 adapted to the bearing sleeve 19. When in use, one end of the oil inlet hole 7 is blocked and the other end is connected to the automatic oil filling assembly, and lubricating oil is injected through the automatic oil filling assembly.

[0019] Preferably, the rear end of the bearing sleeve 19 is integrally formed with a mounting flange 11 , and is connected to the frame 1 via the mounting flange 11 , so as to facilitate the installation of the self-lubricating bearing assembly 3 .

[0020] Preferably, a bearing bracket 12 is provided at the end of the rotating shaft 4. A sleeve 13 is provided at the front end of the bearing bracket 12, which tightly fits the mounting flange 11. A bearing support seat 14 is provided at the rear end of the bearing bracket 12, which is connected to the rotating shaft 4. The sleeve 13 is connected to the mounting flange 11 in a force-fitting manner. The bearing support seat 14 enhances the connection strength of the rotating shaft 4.

[0021] Preferably, an oil seal groove 15 is provided at the end of the rotating shaft 4 corresponding to the position of the bearing support seat 14 to prevent dust and other impurities from entering.

[0022] Preferably, an oil filling port 16 communicating with the rotating shaft 4 is provided at the upper end of the bearing support seat 14 to ensure lubrication between the bearing support seat 14 and the rotating shaft 4 .

[0023] Preferably, a bearing mounting sleeve 17 is welded to the end of the shovel plate 2, and a reinforcing plate 18 is welded to the outside of the bearing mounting sleeve 17, which is connected to the mounting flange 6 of the rotating shaft 4 through the bearing mounting sleeve 17 to improve the strength of the connection.

[0024] Preferably, an oil storage chamber 21 is provided between the bearing bracket 12 and the mounting flange 11, and the oil inlet hole 7 is communicated with the oil storage chamber 21. Lubricating oil is stored in the oil storage chamber 21 to ensure long-term lubrication of the bearing.

[0025] As mentioned above, this does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technician familiar with this profession can make some changes or modifications to the above-disclosed structures and technical contents without departing from the scope of the technical solution of the present invention. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A self-lubricating mining tunneling machine frame, comprising a frame (1) and a shovel plate (2) axially connected to the frame (1), characterized in that: The frame (1) is connected to the shovel plate (2) through a self-lubricating bearing assembly (3), the self-lubricating bearing assembly (3) comprising a rotating shaft (4), sliding bearings (5) sleeved on both ends of the rotating shaft (4), and a bearing sleeve (19) sleeved on the sliding bearing (5), the center of the rotating shaft (4) is provided with a mounting flange (6) connected to a first bearing mounting hole (20) at the rear end of the shovel plate (2) and an axially extending oil inlet hole (7), the rotating shaft (4) is provided with an oil outlet hole (8) communicating with the oil inlet hole (7) at the rear end corresponding to the bearing sleeve (19), the inner wall of the sliding bearing (5) is provided with circumferentially arranged oil grooves (9), and the front end of the frame (1) is provided with a second bearing mounting hole (10) adapted to the bearing sleeve (19).

2. The self-lubricating mining tunneling machine frame according to claim 1, characterized in that: The rear end of the bearing sleeve (19) is integrally formed with a mounting flange (11), and is connected to the frame (1) via the mounting flange (11).

3. The self-lubricating mining tunneling machine frame according to claim 2, characterized in that: A bearing bracket (12) is provided at the end of the rotating shaft (4), and a sleeve (13) tightly fitting with the mounting flange (11) is provided at the front end of the bearing bracket (12), and a bearing support seat (14) connected to the rotating shaft (4) is provided at the rear end.

4. The self-lubricating mining tunneling machine frame according to claim 3, characterized in that: An oil seal groove (15) is provided at the end of the rotating shaft (4) at a position corresponding to the bearing support seat (14).

5. The self-lubricating mining tunneling machine frame according to claim 4, characterized in that: The upper end of the bearing support seat (14) is provided with a refueling port (16) that is in communication with the rotating shaft (4).

6. The self-lubricating mining tunneling machine frame according to claim 1, characterized in that: A bearing mounting sleeve (17) is welded to the end of the shovel plate (2), and a reinforcing plate (18) is welded to the outside of the bearing mounting sleeve (17), which is connected to the mounting flange (6) of the rotating shaft (4) through the bearing mounting sleeve (17).

7. The self-lubricating mining tunneling machine frame according to claim 3, characterized in that: An oil storage cavity (21) is provided between the bearing bracket (12) and the mounting flange (11), and the oil inlet hole (7) is in communication with the oil storage cavity (21).

Images