Disassembling tool for bearings at two ends of main driving pinion of shield tunneling machine

Abstract

The utility model relates to the technical field of shield tunneling machine maintenance, in particular to a disassembling tool for bearings at the two ends of a main drive pinion of a shield tunneling machine. An annular groove is formed in the inner surface of the annular flange, and the bearing B to be disassembled is wrapped in the annular groove; the annular flange and the flange plate are assembled into a cylindrical cage-shaped structure through a plurality of studs; a jack is mounted in the cylindrical cage-shaped structure, and axial force for dismounting is transmitted to the bearing clamping sleeve through the flange plate by utilizing the cylindrical cage-shaped structure, so that the bearing B to be dismounted axially moves relative to the pinion A, and the dismounting purpose is achieved; and meanwhile, the axial force borne by the to-be-disassembled bearing B is uniform acting force, so that the to-be-disassembled bearing B is prevented from being damaged. The axial force borne by the end face of the small gear A is uniform acting force through the gasket, and the small gear A is prevented from being damaged.

Description

TECHNICAL FIELD

[0001] The utility model relates to a shield machine maintenance technical field, concretely relates to a kind of dismantling tool for the bearing of shield machine main drive pinion two ends. BACKGROUND

[0002] Shield machine plays a vital role in tunnel construction, and the performance of the main drive, as the core component of the shield machine, directly affects the normal operation of the shield machine. After long-term operation, the self-aligning roller bearings at both ends of the main drive pinion may wear out, be damaged, etc., and need to be replaced and maintained.

[0003] However, due to the special installation position of the self-aligning roller bearings and the close connection with the pinion shaft neck, the traditional disassembly method has many problems. For example, during disassembly, it is difficult to apply uniform force to the inner ring of the self-aligning roller bearing, which can easily damage the bearing and pinion, affecting the overall performance and service life of the main drive of the shield machine.

[0004] In view of this, in order to overcome the above technical problems, the utility model designs and develops a kind of dismantling tool for the bearing of shield machine main drive pinion two ends, which solves the above technical problems. UTILITY MODEL CONTENTS

[0005] In order to make up for the shortcomings of the prior art, the utility model provides a kind of dismantling tool for the bearing of shield machine main drive pinion two ends, which solves the technical problems that it is difficult to apply uniform force to the inner ring of the self-aligning roller bearing in the prior art, which can easily damage the bearing and pinion.

[0006] The technical scheme adopted by the utility model to solve its technical problems is: a kind of dismantling tool for the bearing of shield machine main drive pinion two ends, comprising: flange plate, two bearing sleeves, hydraulic jack, multiple studs, two fixed pins, annular groove, threaded hole, through hole, nut;

[0007] Two ends of the two bearing sleeves are provided with pin holes, and the bearing sleeves are respectively sleeved on the outer surface of the bearing to be disassembled B;

[0008] Two fixed pins are respectively transitionally matched between the pin holes, for forming a complete annular flange with the two bearing sleeves;The inner surface of the annular flange is provided with an annular groove, and the annular groove is used to wrap the bearing to be disassembled B inside it;

[0009] The side of the two bearing sleeves away from the bearing to be disassembled B is provided with multiple threaded holes;The surface of the flange plate is provided with multiple through holes;

[0010] Multiple studs are respectively connected at one end of the threaded holes, and the other end passes through the through holes and is connected with the nuts;

[0011] The annular flange is assembled with the flange plate into a cylindrical cage structure through a plurality of studs;

[0012] A jack is installed inside the cylindrical cage structure, and a gasket with the same diameter as the pinion A is installed at the end of the piston rod of the jack;

[0013] The gasket is in contact with the bottom surface of the pinion A, and the piston cylinder of the jack is fixedly connected with the flange plate.

[0014] Preferably, the two bearing sleeves are symmetrically designed.

[0015] Preferably, the nut is used to adjust the distance between the flange plate and the bearing sleeve.

[0016] In summary, the utility model has the following beneficial effects:

[0017] Firstly, the cylindrical cage structure is used to transmit the axial force of disassembly to the bearing sleeve through the flange plate, so that the bearing B to be disassembled moves axially relative to the pinion A, and the disassembly purpose is achieved; meanwhile, the axial force on the bearing B to be disassembled is uniform, and the bearing B to be disassembled is prevented from being damaged. The gasket is used to make the end surface of the pinion A receive uniform axial force, and the pinion A is prevented from being damaged.

[0018] Secondly, the work of manually disassembling the bearing on the pinion is simplified, and the nut is only needed to be adjusted to position the tooling, even if the bearing and the pinion are too tightly matched to be disassembled, the bearing can also be smoothly disassembled without damage, the maintenance work efficiency is improved, and the damage of the equipment in the prior art is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to the drawings without creating creative labor.

[0020] Fig. 1 It is a disassembly tool structure schematic view of the utility model;

[0021] Fig. 2 It is a disassembly tool sectional view assembly schematic view of the utility model;

[0022] Fig. 3 It is a disassembly tool bearing sleeve schematic view of the utility model;

[0023] In the figure: flange plate 1, two bearing sleeves 2, hydraulic jack 3, multiple studs 4, two fixing pins 5, annular groove 6, threaded hole 7, through hole 8, nut 9, gasket 10, piston rod 31, piston cylinder 32, pinion A, bearing to be disassembled B. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below with reference to the drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Therefore, the following detailed description of the embodiments of the present application is not intended to limit the scope of the claimed present application, but only represents some embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0025] It should be noted that: similar reference numerals and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0026] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "back" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly placed when the product of the present application is used. Such terms are only for the convenience of describing the present application and simplifying the description, and are not intended to indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0027] It should also be noted that, in the description of the present application, unless otherwise explicitly specified and limited, the terms "set", "mount", "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0028] As shown in Figs. 1-3 , it comprises: a flange plate 1, two bearing sleeves 2, a hydraulic jack 3, multiple studs 4, two fixing pins 5, an annular groove 6, a threaded hole 7, a through hole 8, a nut 9, a gasket 10;

[0029] The two bearing sleeves 2 are symmetrically split designs, and the two ends are provided with pin holes; the two bearing sleeves 2 are respectively sleeved on the outer surface of the bearing B to be disassembled;

[0030] The two fixing pins 5 are respectively in transition fit with the pin holes, and are used for assembling the two bearing sleeves 2 into a complete annular flange; the inner surface of the annular flange is provided with an annular groove 6, and the annular groove 6 is used for wrapping the bearing B to be disassembled inside;

[0031] The side, away from the bearing B to be disassembled, of the two bearing sleeves 2 is provided with a plurality of threaded holes 7; the surface of the flange plate 1 is provided with a plurality of through holes 8;

[0032] One end of the plurality of studs 4 is respectively connected with the threaded holes 7, and the other end penetrates through the through holes 8 and is connected with the nuts 9; the nuts 9 are used for adjusting the distance between the flange plate 1 and the bearing sleeve 2;

[0033] The annular flange is assembled into a cylindrical cage type structure with the flange plate 1 through the plurality of studs 4;

[0034] The cylindrical cage type structure is internally provided with a jack 3, and the end of the piston rod 31 of the jack 3 is provided with a gasket 10 with the same diameter as the pinion A;

[0035] The gasket 10 is in contact with the bottom surface of the pinion A, and the piston cylinder 32 of the jack 3 is fixedly connected with the flange plate 1.

[0036] In the disassembly process, first, the two bearing sleeves 2 are respectively sleeved on the outer side of the bearing B to be disassembled, then the fixing pin 5 is inserted into the pin hole, the assembly of the two bearing sleeves 2 is realized, the annular flange composed of the two bearing sleeves 2 wraps the bearing B to be disassembled in the annular groove 6, and the clamping of the bearing B to be disassembled is completed.

[0037] After the clamping of the bearing B to be disassembled is completed, first, the nut 9 is tightened or loosened, so that the gasket 10 at the end of the piston rod 31 abuts against the end surface of the pinion A; then the jack 3 is started to make the piston rod 31 extend, and the axial force generated is transmitted to the end surface of the pinion A. At this time, the end surface of the pinion A is subjected to uniform axial force by the gasket 10, and damage to the pinion A is avoided.

[0038] In the process of extending the piston rod 31, the cylindrical cage type structure is used to make the axial force of disassembly transmitted to the two bearing sleeves 2 through the flange plate 1, so that the bearing B to be disassembled is axially moved relative to the pinion A, and the disassembly purpose is achieved. At this time, the cylindrical cage type structure is used to make the axial force received by the bearing B to be disassembled be uniform force, and damage to the bearing B to be disassembled is avoided.

[0039] The above merely is preferred implementation manner of the present application, the protection scope of the present application is not only limited to the above examples, and belongs to the technical scheme under the idea of the present application all belongs to the protection scope of the present application. It should be pointed out that, for ordinary skilled person in the art, under the premise of not departing from the principle of the present application, some improvements and decorations, these improvements and decorations should also be considered as the protection scope of the present application.

Claims

1. A dismounting tool for the bearings at both ends of the main drive pinion of a shield tunneling machine, comprising: Pinion gear A and bearing to be disassembled B, characterized in that it also comprises: flange plate (1), two bearing sleeves (2), hydraulic jack (3), multiple studs (4), two fixed pins (5), annular groove (6), threaded hole (7), through hole (8), nut (9); Both ends of the two bearing sleeves (2) are provided with pin holes, and are respectively sleeved on the outer surface of the bearing to be disassembled B; Two fixed pins (5) are respectively transitionally connected with the pin holes, and are used for assembling the two bearing sleeves (2) into a complete annular flange; the inner surface of the annular flange is provided with an annular groove (6), and the annular groove (6) is used for wrapping the bearing to be disassembled B inside; Multiple threaded holes (7) are formed in the side of the two bearing sleeves (2) away from the bearing to be disassembled B; multiple through holes (8) are formed in the surface of the flange plate (1); Multiple studs (4) are respectively connected with the threaded holes (7) at one end and connected with the nuts (9) at the other end through the through holes (8); The annular flange is assembled with the flange plate (1) into a cylindrical cage structure through multiple studs (4); A jack (3) is installed in the cylindrical cage structure, and a gasket (10) with the same diameter as the pinion gear A is installed at the end of the piston rod (31) of the jack (3); The gasket (10) is in contact with the bottom surface of the pinion gear A, and the piston cylinder (32) of the jack (3) is fixedly connected with the flange plate (1).

2. The dismounting tool for the bearings at both ends of the main drive pinion gear of a shield tunneling machine according to claim 1, characterized in that: The two bearing sleeves (2) are designed in a symmetrical half-split manner.

3. The dismounting tool for the bearings at both ends of the main drive pinion gear of a shield tunneling machine according to claim 1, characterized in that: The nut (9) is used for adjusting the distance between the flange plate (1) and the bearing sleeve (2).

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