CN218780656U - Bearing box sealing device - Google Patents

Abstract

The application discloses a bearing box sealing device which comprises a rear box body, a front box body, a connecting shaft and a bearing body; the front box body is positioned at the front end of the rear box body, a side groove is formed in the surface of the rear end of the front box body, a threaded groove is formed in the front end of the rear box body, a second bolt is arranged in the side groove, and the tail end of the second bolt penetrates through the side groove and is in threaded connection with the threaded groove; the back box with the equal rigid coupling in preceding box both sides has the mounting panel, the mounting panel surface is opened there is the mounting hole, just the mounting panel with the back box equal rigid coupling has the reinforcing plate between the preceding box. The bearing is formed by combining the front box body and the rear box body, and the bearing body and the front box body are fixed by screwing the first bolt through the end hole and the thread groove, so that the disassembly and the assembly are simple; then can run through the bearing body with the connecting axle, can be fixed the connecting axle with preceding box through the second bolt this moment, easy operation is convenient for carry out the dismouting with the bearing body.

Description

A bearing housing sealing device

technical field

The present application relates to the field of bearing box technology, in particular to a bearing box sealing device.

Background technique

The bearing box, also known as the winch box, is a box part that supports and lubricates the bearing; at the same time, it bears the axial and radial forces generated by the equipment during work. In equipment with a rotating shaft, the shaft is generally composed of bearings. Supported to rotate, the bearing is installed in the bearing box, and the bearing box is filled with lubricating oil. During the working process, the bearing is used to be lubricated; at the same time, various forces received by the shaft during work will also be transmitted to the bearing box. Carried by the bearing box, the material of the bearing box is generally cast iron and cast steel, and it is mostly used for wheel sets.

In the prior art, the bearing housing usually uses a rubber gasket to seal the shaft hole. This kind of gasket is prone to aging after long-term use, and the service life is not high. Moreover, the current bearing housing is not detachable enough, which is not conducive to Repair and maintenance. Therefore, a bearing box sealing device is proposed to solve the above problems.

Contents of the invention

The purpose of the present application is to provide a bearing box sealing device, which has the advantage of simple disassembly and assembly, and solves the problem of insufficient sealing of the existing bearing box.

A bearing box sealing device, comprising a rear box body, a front box body, a connecting shaft and a bearing body;

The front box is located at the front end of the rear box, the rear surface of the front box is provided with a side groove, the front end of the rear box is provided with a threaded groove, and the inside of the side groove is provided with a second bolt, and the The end of the second bolt passes through the side groove and is threadedly connected with the thread groove; both sides of the rear box and the front box are fixedly connected with a mounting plate, and the surface of the mounting plate is provided with a mounting hole, and Reinforcing plates are fixedly connected between the mounting plate, the rear box, and the front box;

The outer end surface of the connecting shaft is provided with a limiting groove, the bearing body is sleeved on the surface of the connecting shaft, the inner wall of the bearing body is fixed with a limiting block, and the limiting block is engaged with the limiting The inside of the groove; the inner side wall of the front box has a positioning groove, and the outer side of the bearing body is fixed with a positioning block, and the positioning block is engaged in the positioning groove, and the side of the positioning block is provided with a threaded hole. An end hole is opened at the outer end of the front box, and the end of the first bolt passes through the end hole and is threadedly connected with the threaded hole.

Further, the interior of the rear box and the front box are both hollow structures, and the three side grooves are annularly distributed on the surface of the front box, and the number of the side grooves is the same as that of the threaded grooves.

Further, the number of the first bolts is four, and the four first bolts are annularly distributed on the outer end of the front box, and the first bolts are aligned with the threaded holes.

Further, the number of the limiting grooves is two, and the two limiting grooves are symmetrically distributed on the surface of the connecting shaft, and the bearing body is slidably connected with the connecting shaft.

Further, sealing sleeves are provided at the contact points between the rear box body and the front box body and the connecting shaft, and the sealing sleeves are sleeved on the surface of the connecting shaft, and the sealing sleeves are made of graphite.

Further, the cross-sections of the positioning block and the positioning groove are rectangular structures, the number of the positioning block and the positioning groove is four, and the four positioning blocks are distributed on the outer surface of the bearing body in a ring , and the four positioning grooves are annularly distributed on the inner side of the front box.

Through the above-mentioned embodiment of the present application, the front box body and the rear box body are combined, and the bearing body and the front box body are fixed and disassembled by passing the first bolt through the end hole and screwing it with the thread groove. are relatively simple; then the connecting shaft can be penetrated through the bearing body, at this time, the connecting shaft and the front box can be fixed by the second bolt, the operation is simple, and the bearing body is conveniently disassembled.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present application. Those skilled in the art can also obtain other drawings based on these drawings without any creative effort.

Fig. 1 is a schematic diagram of the overall three-dimensional structure of an embodiment of the present application;

Figure 2 is a schematic diagram of the overall internal structure of an embodiment of the present application;

Fig. 3 is a connection diagram of the front box and the rear box in an embodiment of the present application.

In the figure: 1. Rear box body; 2. Front box body; 21. Side groove; 3. First bolt; 4. Mounting plate; 41. Mounting hole; 5. Connecting shaft; 51. Limiting groove; 6. Reinforcement Plate; 7, second bolt; 8, sealing sleeve; 9, limit block; 10, bearing body; 11, positioning block; 12, threaded hole; 13, positioning groove; 14, end hole; 15, thread groove.

Detailed ways

In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiment of the application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the application. Obviously, the described embodiment is only It is an embodiment of a part of the application, but not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.

It should be noted that the terms "first" and "second" in the specification and claims of the present application and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific order or sequence. It should be understood that the data so used may be interchanged under appropriate circumstances for the embodiments of the application described herein. Furthermore, the terms "comprising" and "having", as well as any variations thereof, are intended to cover a non-exclusive inclusion, for example, a process, method, system, product or device comprising a sequence of steps or elements is not necessarily limited to the expressly listed instead, may include other steps or elements not explicitly listed or inherent to the process, method, product or apparatus.

In this application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", The orientations or positional relationships indicated by "vertical", "horizontal", "horizontal", and "longitudinal" are based on the orientations or positional relationships shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit that the indicated devices, elements or components must have a specific orientation, or be constructed and operated in a specific orientation.

Moreover, some of the above terms may be used to indicate other meanings besides orientation or positional relationship, for example, the term "upper" may also be used to indicate a certain attachment relationship or connection relationship in some cases. Those skilled in the art can understand the specific meanings of these terms in this application according to specific situations.

Furthermore, the terms "installed", "disposed", "provided", "connected", "connected", "socketed" are to be interpreted broadly. For example, it may be a fixed connection, a detachable connection, or an integral structure; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediary; internal connectivity. Those of ordinary skill in the art can understand the specific meanings of the above terms in this application according to specific situations.

It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and embodiments.

Please refer to Figure 1-3, a bearing box sealing device, including a rear box body 1, a front box body 2, a connecting shaft 5 and a bearing body 10;

The front box 2 is located at the front end of the rear box 1, the rear surface of the front box 2 has a side groove 21, the front end of the rear box 1 has a thread groove 15, and the inside of the side groove 21 is arranged There is a second bolt 7, and the end of the second bolt 7 passes through the side groove 21 and is threadedly connected with the thread groove 15; both sides of the rear box 1 and the front box 2 are fixedly connected with installation plate 4, the mounting hole 41 is opened on the surface of the mounting plate 4, and a reinforcing plate 6 is fixedly connected between the mounting plate 4, the rear box body 1, and the front box body 2;

The outer end surface of the connecting shaft 5 has a limiting groove 51, the bearing body 10 is sleeved on the surface of the connecting shaft 5, the inner wall of the bearing body 10 is fixed with a limiting block 9, and the limiting block 9 Engaged in the inside of the limiting groove 51; the inner side wall of the front box body 2 has a positioning groove 13, and the outer surface of the bearing body 10 is fixedly connected with a positioning block 11, and the positioning block 11 is engaged with the positioning Inside the groove 13, the side of the positioning block 11 has a threaded hole 12, and the outer end of the front box 2 has an end hole 14, and the end of the first bolt 3 passes through the end hole 14 and is threaded with the threaded hole 12. connect.

The inside of the rear box 1 and the front box 2 are both hollow structures, and the three side grooves 21 are annularly distributed on the surface of the front box 2, and the number of the side grooves 21 and the threaded grooves 15 is The same; the number of the first bolts 3 is four, and the four first bolts 3 are annularly distributed on the outer end of the front box body 2, and the first bolts 3 are aligned with the threaded holes 12; The number of limiting grooves 51 is two, and the two limiting grooves 51 are symmetrically distributed on the surface of the connecting shaft 5, and the bearing body 10 is slidingly connected with the connecting shaft 5; the rear box 1, the A seal sleeve 8 is provided at the contact between the front box body 2 and the connecting shaft 5, and the seal sleeve 8 is sleeved on the surface of the connecting shaft 5, and the seal sleeve 8 is made of graphite; the positioning The cross sections of the block 11 and the positioning groove 13 are rectangular structures, the number of the positioning block 11 and the positioning groove 13 are four, and the four positioning blocks 11 are distributed on the outer surface of the bearing body 10 in a ring , and the four positioning grooves 13 are annularly distributed on the inner surface of the front box body 2 .

When the present application is in use, first install the bearing body 10 inside the front box body 2, at this time the positioning block 11 will be engaged in the positioning groove 13, and at the same time, the first bolt 3 will pass through the end hole 14 and connect with the threaded groove. 15 screw and tighten, so as to fix the bearing body 10 and the front box body 2; and then connect the connecting shaft 5 through the bearing body 10, and the limit block 9 on the inner wall of the bearing body 10 will be engaged in the limit groove 51 At the same time, the sealing sleeve 8 is installed at the contact of the rear box body 1, the front box body 2 and the connecting shaft 5; then the rear box body 1 and the front box body 2 are combined and installed, and the second bolt 7 and the threaded hole 12 are screwed together. The connecting shaft 5 and the front box body 2 can be fixed by tightening together, and the disassembly and assembly are relatively simple; the two ends of the bearing box are provided with a sealing sleeve 8, and the sealing sleeve 8 is made of graphite, and the sealing performance of the graphite sealing sleeve 8 is better, and at the same time Has a certain self-lubricating effect.

The benefits of this application are:

1. This application is composed of the front box and the rear box. By passing the first bolt through the end hole and screwing it with the thread groove, the bearing body and the front box are fixed, and the disassembly and assembly are relatively simple. ;Then the connecting shaft can pass through the bearing body, at this time the connecting shaft can be fixed with the front box through the second bolt, the operation is simple, and the bearing body is convenient to be disassembled;

2. The sealing sleeve of this application is installed at the contact between the rear box body, the front box body and the connecting shaft. The sealing sleeve is set on the surface of the connecting shaft. At the same time, the sealing sleeve is made of graphite. The graphite sealing sleeve has better sealing performance and certain self-lubricating properties. function, the service life is higher.

The above descriptions are only preferred embodiments of the present application, and are not intended to limit the present application. For those skilled in the art, there may be various modifications and changes in the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of this application shall be included within the protection scope of this application.

Claims (6)

1. A bearing housing sealing device, characterized in that: it comprises a rear housing (1), a front housing (2), a connecting shaft (5) and a bearing body (10); The front box (2) is located at the front end of the rear box (1), the rear surface of the front box (2) is provided with side grooves (21), and the front end of the rear box (1) is threaded groove (15), the second bolt (7) is arranged inside the side groove (21), and the end of the second bolt (7) passes through the side groove (21) and is threaded with the threaded groove (15) connection; both sides of the rear box (1) and the front box (2) are fixedly connected with mounting plates (4), and the surface of the mounting plate (4) has mounting holes (41), and the A reinforcing plate (6) is fixedly connected between the mounting plate (4) and the rear box (1) and the front box (2); The outer end surface of the connecting shaft (5) is provided with a limiting groove (51), the bearing body (10) is sleeved on the surface of the connecting shaft (5), and the inner side wall of the bearing body (10) is fixed to limit the position. block (9), and the limiting block (9) is engaged inside the limiting groove (51); the inner side wall of the front box body (2) has a positioning groove (13), and the bearing body ( 10) A positioning block (11) is fixedly connected to the outer surface, and the positioning block (11) is engaged in the positioning groove (13), and a threaded hole (12) is opened on the side of the positioning block (11). An end hole (14) is opened at the outer end of the front box body (2), and the end of the first bolt (3) passes through the end hole (14) and is threadedly connected with the threaded hole (12). 2. A bearing housing sealing device according to claim 1, characterized in that: The inside of the rear box (1) and the front box (2) are both hollow structures, and the three side grooves (21) are annularly distributed on the surface of the front box (2), and the side grooves (21) have the same number as the thread grooves (15). 3. A bearing housing sealing device according to claim 1, characterized in that: The number of the first bolts (3) is four, and the four first bolts (3) are annularly distributed on the outer end of the front box body (2), and the first bolts (3) and the thread Align the holes (12). 4. A bearing housing sealing device according to claim 1, characterized in that: The number of the limiting grooves (51) is two, and the two limiting grooves (51) are symmetrically distributed on the surface of the connecting shaft (5), and the bearing body (10) and the connecting shaft (5) ) sliding connection. 5. A bearing housing sealing device according to claim 1, characterized in that: Sealing sleeves (8) are provided at the contact points of the rear box body (1), the front box body (2) and the connecting shaft (5), and the sealing sleeves (8) are sleeved on the connecting shaft (5) the surface, and the sealing sleeve (8) is made of graphite. 6. A bearing housing sealing device according to claim 1, characterized in that: The cross-sections of the positioning block (11) and the positioning groove (13) are rectangular structures, the number of the positioning block (11) and the positioning groove (13) is four, and the four positioning blocks (11) are annularly distributed on the outer surface of the bearing body (10), and the four positioning grooves (13) are annularly distributed on the inner surface of the front box (2).

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