Special protective bearing sleeve for heading machine

Abstract

The utility model relates to the technical field of bearing sleeves, in particular to a special protective bearing sleeve for a heading machine, which comprises a connecting seat, a rear sheath and a front sheath, a fourth convex part is fixedly connected to the left part of the outer surface of the rear sheath, and a third convex part is fixedly connected to the left part of the outer surface of the front sheath. The right part of the outer surface of the rear sheath is fixedly connected with a first outer convex part, the right part of the outer surface of the front sheath is fixedly connected with a second outer convex part, two connecting bolts are jointly connected between the first outer convex part and the second outer convex part, and two second outer convex parts are jointly connected between the fourth outer convex part and the third outer convex part. According to the special protective bearing sleeve for the heading machine, the cavities are formed in the rear protective sleeve and the front protective sleeve, under the action of the cavities, the weight of the rear protective sleeve and the weight of the front protective sleeve can be reduced, the burden on a bearing is reduced, and the supporting pieces are arranged in the front protective sleeve and the rear protective sleeve, so that the bearing is protected; therefore, the strength of the rear sheath and the strength of the front sheath are improved while the weight is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of bearing sleeves, in particular to a special protective bearing sleeve for a tunneling machine. Background Art

[0002] The bearing of the tunnel boring machine is a component installed in the transmission system of the tunnel boring machine. Its function is to transmit the power output by the engine to the cutter of the tunnel boring machine so that the tunnel boring machine can work. The bearing of the tunnel boring machine generally adopts deep groove ball bearings or roller bearings, which have high load-bearing capacity and wear resistance. At present, protective bearing sleeves are often installed on the bearings to protect the bearings. There are at least the following disadvantages in the use of the existing protective bearing sleeves: During the use of the existing protective bearing sleeves, the interior of the bearing sleeves is often a solid structure. Although it plays a protective role, it also leads to a large weight of the protective sleeve, which puts a burden on the operation of the bearing and is not conducive to use. Therefore, we have launched a special protective bearing sleeve for tunnel boring machines. Utility Model Content

[0003] The main purpose of the utility model is to provide a special protective bearing sleeve for a tunnel boring machine, which can effectively solve the problems in the background technology.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] A special protective bearing sleeve for a tunnel boring machine comprises a rear sleeve and a front sleeve, wherein a No. 4 outer protrusion is fixedly connected to the left portion of the outer surface of the rear sleeve, a No. 3 outer protrusion is fixedly connected to the left portion of the outer surface of the front sleeve, a No. 1 outer protrusion is fixedly connected to the right portion of the outer surface of the rear sleeve, a No. 2 outer protrusion is fixedly connected to the right portion of the outer surface of the front sleeve, two connecting bolts are commonly connected between the No. 1 outer protrusion and the No. 2 outer protrusion, two No. 2 outer protrusions are commonly connected between the No. 4 outer protrusion and the No. 3 outer protrusion, and a bearing member is arranged between the rear sleeve and the front sleeve.

[0006] Preferably, a cavity is formed in both the front protective sleeve and the rear protective sleeve, and inner walls of the two cavities are fixedly connected with support members.

[0007] Preferably, both of the two support members are arc-shaped structures.

[0008] Preferably, both of the two support members are corrugated structures.

[0009] Preferably, the four connecting bolts are not in contact with the rear sheath.

[0010] Compared with the prior art, the utility model has the following beneficial effects:

[0011] By setting a rear sleeve and a front sleeve, the bearing component is wrapped by the rear sleeve and the front sleeve, and the rear sleeve and the front sleeve are connected together with connecting bolts to protect the bearing component. Since there are cavities in the rear sleeve and the front sleeve, the weight of the rear sleeve and the front sleeve can be reduced under the action of the cavity, and the burden on the bearing is reduced. By setting support members in the front sleeve and the rear sleeve, the weight can be reduced while the strength of the rear sleeve and the front sleeve can be improved to avoid damage caused by bumps, deformation, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the overall structure of a protective bearing sleeve dedicated to a tunnel boring machine according to the utility model;

[0013] Figure 2 This is a schematic diagram of the cross-sectional structure of a front sleeve of a special protective bearing sleeve for a tunnel boring machine according to the utility model;

[0014] Figure 3 The utility model is a schematic diagram of the overall structure of a support member of a special protective bearing sleeve for a tunnel boring machine.

[0015] In the figure: 1, rear sleeve; 2, outer protrusion No. 1; 3, connecting bolt; 4, outer protrusion No. 2; 5, front sleeve; 6, outer protrusion No. 3; 7, outer protrusion No. 4; 8, bearing member; 51, cavity; 52, support member. DETAILED DESCRIPTION

[0016] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0017] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0018] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0019] See also Figure 1-3 , the utility model provides a technical solution:

[0020] A special protective bearing sleeve for a tunnel boring machine comprises a rear sleeve 1 and a front sleeve 5, wherein a No. 4 outer protrusion 7 is fixedly connected to the left portion of the outer surface of the rear sleeve 1, a No. 3 outer protrusion 6 is fixedly connected to the left portion of the outer surface of the front sleeve 5, a No. 1 outer protrusion 2 is fixedly connected to the right portion of the outer surface of the rear sleeve 1, a No. 2 outer protrusion 4 is fixedly connected to the right portion of the outer surface of the front sleeve 5, two connecting bolts 3 are commonly connected between the No. 1 outer protrusion 2 and the No. 2 outer protrusion 4, two No. 2 outer protrusions 4 are commonly connected between the No. 4 outer protrusion 7 and the No. 3 outer protrusion 6, and a bearing member 8 is arranged between the rear sleeve 1 and the front sleeve 5.

[0021] In this embodiment, a cavity 51 is opened in the front sheath 5 and the rear sheath 1, and the inner walls of the two cavities 51 are fixedly connected with support members 52; the two support members 52 are both arc-shaped structures; the two support members 52 are both corrugated structures; the four connecting bolts 3 are not in contact with the rear sheath 1.

[0022] It should be noted that the utility model is a special protective bearing sleeve for a tunnel boring machine. During use, the rear sleeve 1 and the front sleeve 5 are used to wrap the bearing component 8, and the rear sleeve 1 and the front sleeve 5 are connected together using the connecting bolts 3 to protect the bearing component 8. Since the rear sleeve 1 and the front sleeve 5 are both provided with a cavity 51, the weight of the rear sleeve 1 and the front sleeve 5 can be reduced under the action of the cavity 51, thereby reducing the burden on the bearing. By arranging a support member 52 in the front sleeve 5 and the rear sleeve 1, the weight can be reduced while improving the strength of the rear sleeve 1 and the front sleeve 5 to avoid damage caused by bumps, deformation, etc.

[0023] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A special protective bearing sleeve for a tunnel boring machine, comprising a rear sleeve (1) and a front sleeve (5), characterized in that: The left portion of the outer surface of the rear shield (1) is fixedly connected to a No. 4 outer protrusion (7), the left portion of the outer surface of the front shield (5) is fixedly connected to a No. 3 outer protrusion (6), the right portion of the outer surface of the rear shield (1) is fixedly connected to a No. 1 outer protrusion (2), the right portion of the outer surface of the front shield (5) is fixedly connected to a No. 2 outer protrusion (4), two connecting bolts (3) are commonly connected between the No. 1 outer protrusion (2) and the No. 2 outer protrusion (4), two No. 2 outer protrusions (4) are commonly connected between the No. 4 outer protrusion (7) and the No. 3 outer protrusion (6), and a bearing member (8) is provided between the rear shield (1) and the front shield (5).

2. A special protective bearing sleeve for a tunnel boring machine according to claim 1, characterized in that: The front protective sleeve (5) and the rear protective sleeve (1) are both provided with cavities (51), and the inner walls of the two cavities (51) are both fixedly connected with support members (52).

3. A special protective bearing sleeve for a tunnel boring machine according to claim 2, characterized in that: The two support members (52) are both arc-shaped structures.

4. A special protective bearing sleeve for a tunnel boring machine according to claim 2, characterized in that: The two support members (52) are both corrugated structures.

5. The special protective bearing sleeve for tunnel boring machine according to claim 1, characterized in that: The four connecting bolts (3) are not in contact with the rear sheath (1).

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