CN210949587U - Upper end rolling bearing for tunnel trolley with supporting function - Google Patents

Abstract

The utility model discloses an upper end rotating bearing for tunnel trolley with supporting function, which comprises a mounting head and an oil filling hole, the utility model is provided with a sealing device, when the device is used, a sealing head is firmly fixed on an outer shaft sleeve, a sealing ring layer at the joint of the sealing head and the outer shaft sleeve can play the role of water and dust prevention, meanwhile, the sealing head can also prevent dust or other foreign matters from being clamped into a connecting gap between the outer shaft sleeve and an inner rotating sleeve, the rusting in the bearing or the blockage by foreign matters can be avoided, the service life of the utility model can be prolonged, the utility model is provided with an outer shaft sleeve and an inner rotating sleeve, balls are arranged on the inner ring layer of the outer shaft sleeve, when a rotating shaft fixed in the inner rotating sleeve starts to rotate, the inner rotating sleeve can simultaneously start to rotate in the outer shaft sleeve under the action of the rotating shaft, the balls arranged on the outer shaft sleeve can reduce the rotating friction force of the, thereby can improve the utility model discloses a work efficiency and practicality.

Description

Upper end rolling bearing for tunnel trolley with supporting function

Technical Field

The utility model belongs to the bearing correlation art field, concretely relates to tunnel dolly who plays supporting role is with upper end rolling bearing.

Background

The upper end rotating bearing for the tunnel trolley with the supporting function is an important part in modern mechanical equipment, and has the main functions of supporting a mechanical rotating body, reducing the friction coefficient in the movement process of the mechanical rotating body and ensuring the rotation precision of the mechanical rotating body.

The existing upper end rotating bearing technology for the tunnel trolley with the supporting function has the following problems: because the tunnel dolly that plays supporting role is with upper end rolling bearing can expose in the work place for a long time, waterproof to rolling bearing, dustproof requirement is just extraordinarily high, and the waterproof dirt-proof effect of current rolling bearing structure is than poor, after using a period, the inside easy rust of bearing, or blocked and unable rotation by the foreign matter, influence product service function and life, the tunnel dolly that plays supporting role is with upper end rolling bearing adopts single axle sleeve to fix the pivot usually simultaneously, frictional force between pivot and the axle sleeve is great, influence work efficiency, and the practicality is lower.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a tunnel dolly who plays supporting role is with upper end rolling bearing to solve the shorter and lower problem of practicality of life who proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a tunnel dolly of supporting role is with upper end rolling bearing, is including installing head and oil filler point, the top intermediate position department of installing the head is provided with the oil filler point, and installs overhead sealing device that is provided with, sealing device is including sealed head, seal ring layer, connector and through-hole, be provided with the seal ring layer on the medial surface of sealed head, and the intermediate position department of sealed head medial surface is provided with the connector, sealing device's intermediate position department transversely is provided with the through-hole around running through, the left and right sides of installing the head all is provided with the fixed plate, two all be provided with the fixed orifices on the fixed plate, two all be provided with the bolt in the fixed hole.

Preferably, the installation head includes stopper, ball, outer axle sleeve, thread connection groove, internal rotation cover and shaft hole, be provided with the thread connection groove on the outer axle sleeve, and be provided with the stopper on the inboard circle layer of outer axle sleeve, be provided with the ball between the stopper, be provided with the internal rotation cover in the outer axle sleeve, intermediate position department on the internal rotation cover transversely is provided with the shaft hole around running through.

Preferably, the length and the shape of the two fixing plates are the same, and the diameter and the shape of the two fixing holes are the same.

Preferably, the number of the sealing devices is two, the size and the structure of the two sealing devices are the same, and the two sealing devices are respectively arranged on two side surfaces of the mounting head.

Preferably, the thickness of the sealing ring layer is 3mm, and the thickness of the sealing head is 2 cm.

Preferably, thirteen balls are arranged in total, and the size and the shape of the thirteen balls are the same.

Preferably, the thickness of the outer shaft sleeve is twice that of the inner rotating sleeve, the outer shaft sleeve and the inner rotating sleeve are made of the same material, and a clamping groove is formed in the middle of the outer ring layer of the inner rotating sleeve.

Compared with the prior art, the utility model provides a tunnel dolly of supporting role is with upper end rolling bearing possesses following beneficial effect: 1. the utility model discloses be provided with sealing device on current tunnel dolly who plays supporting role's upper end rolling bearing's basis, when equipment carries out the use, will seal overhead connector and aim at the screw thread spread groove on the outer axle sleeve and twist sealed head, make sealed head firm fix on the outer axle sleeve, sealed head can play waterproof and dirt-proof effect with the seal ring layer of outer axle sleeve junction, simultaneously sealed head also can prevent that dust or other foreign matter cards from advancing in the connection gap between outer axle sleeve and the internal rotation cover, can effectually avoid the inside rust of bearing or blocked by the foreign matter, thereby can effectual extension the utility model discloses a life.

2. The utility model discloses be provided with outer axle sleeve and internal rotation cover on current tunnel trolley that plays supporting role's upper end rolling bearing's basis, and be provided with the ball on the inboard circle layer of outer axle sleeve, when the pivot of internal rotation cover internal fixation began to rotate, the internal rotation cover can begin to rotate simultaneously in the outer axle sleeve under the effect of pivot, the ball that sets up on the outer axle sleeve can effectually reduce internal rotation cover pivoted frictional force to can effectual improvement the utility model discloses a work efficiency and practicality.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description, do not constitute a limitation of the invention, in which:

fig. 1 is a schematic structural view of an upper-end rotary bearing for a tunnel trolley for supporting according to the present invention;

fig. 2 is a schematic structural view of the sealing device according to the present invention;

fig. 3 is a schematic structural view of the mounting head according to the present invention;

in the figure: 1. a sealing device; 2. a fixing hole; 3. a fixing plate; 4. a bolt; 5. a mounting head; 6. an oil filler hole; 11. a sealing head; 12. a seal ring layer; 13. a connector; 14. a through hole; 51. a limiting block; 52. a ball bearing; 53. an outer sleeve; 54. connecting grooves by screw threads; 55. an inner rotary sleeve; 56. and the shaft hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: an upper-end rotating bearing for a tunnel trolley with a supporting function comprises a mounting head 5 and an oil filling hole 6, the oil filling hole 6 is arranged at the middle position of the top end of the mounting head 5, the mounting head 5 comprises limiting blocks 51, rolling balls 52, an outer shaft sleeve 53, threaded connecting grooves 54, an inner rotating sleeve 55 and a shaft hole 56, the threaded connecting grooves 54 are arranged on the outer shaft sleeve 53, the limiting blocks 51 are arranged on the inner side ring layer of the outer shaft sleeve 53, the rolling balls 52 are arranged between the limiting blocks 51, the rolling balls 52 are totally arranged in thirteen rolling balls 52, the sizes and the shapes of the thirteen rolling balls 52 are the same, the friction force between the inner rotating sleeve 55 and the outer shaft sleeve 53 can be effectively reduced by utilizing the rotation of the inner rotating sleeve 55 under the assistance of the rolling balls 52, so that the working efficiency of the utility model can be effectively improved, the inner rotating sleeve 55 is arranged in the, outer axle sleeve 53 is the same with the material of making of interior rotation cover 55, and the intermediate position department on the outer circle layer of interior rotation cover 55 is provided with the joint groove, makes ball 52 can the joint inslot on interior rotation cover 55, avoids interior rotation cover 55 dislocation or drops from outer axle sleeve 53, improves the utility model discloses a stability, intermediate position department on the interior rotation cover 55 transversely is provided with shaft hole 56 around running through, and the ball 52 that sets up on the outer axle sleeve 53 can effectually reduce interior rotation cover 55 pivoted frictional force to can effectual improvement the utility model discloses a work efficiency and practicality.

An upper end rotary bearing for a tunnel trolley with a supporting function comprises a mounting head 5, wherein two sealing devices 1 are arranged on the mounting head 5, the two sealing devices 1 are identical in size and structure, the two sealing devices 1 are respectively arranged on two side surfaces of the mounting head 5, dust or other foreign matters can be prevented from being clamped into a connecting gap between an outer shaft sleeve 53 and an inner rotary sleeve 55 by the sealing devices 1, rusting in the bearing or being clamped by the foreign matters can be effectively avoided, so that the service life of the utility model can be effectively prolonged, the sealing device 1 comprises a sealing head 11, a sealing ring layer 12, a connecting head 13 and a through hole 14, the inner side surface of the sealing head 11 is provided with the sealing ring layer 12, the thickness of the sealing ring layer 12 is 3mm, the thickness of the sealing head 11 is 2cm, the sealing device 1 has good sealing performance, and the practicability of the utility model can be effectively improved, and the intermediate position department of 11 medial surfaces of sealed head is provided with connector 13, and sealing device 1's intermediate position department transversely is provided with through-hole 14 around running through, and the left and right sides of installation head 5 all is provided with fixed plate 3, all is provided with fixed orifices 2 on two fixed plates 3, and the length and the shape homogeneous phase of two fixed plates 3 are the same, and the diameter and the shape homogeneous phase of two fixed orifices 2 are the same, and two fixed plates 3 that length is the same can install the firm installation in required position department of installation head 5, improve the utility model discloses a stability, two 2 convenient to use persons in fixed orifices that the size is the same are right the utility model discloses a fix, can effectual improvement the utility model discloses a practicality all is provided with bolt 4 in two fixed orifices 2.

The utility model discloses a theory of operation and use flow: after the utility model is installed, the user firstly checks whether the external appearance of the utility model is complete, confirms that the utility model is in a normal working state, then the user moves the utility model to a position to be used, arranges the fixed plate 3 at a designated position, and utilizes the fixed hole 2 bolt 4 to firmly fix the utility model, then installs the rotating shaft on the installation head 5, and simultaneously connects the sealing device 1 on the installation head 5, because the utility model is exposed in a working field for a long time, the waterproof and dustproof requirements for the rotating bearing are extremely high, the waterproof and dustproof effects of the existing rotating bearing structure are poor, after the utility model is used for a period of time, the inside of the bearing is easy to rust, or the bearing is blocked by foreign matters and can not rotate, the using function and the service life of the product are affected, the utility model is provided with the sealing device 1 on the basis of the upper rotating bearing for the existing tunnel trolley with a supporting function, when the device is used, the connector 13 on the sealing head 11 is aligned with the threaded connection groove 54 on the outer shaft sleeve 53 and the sealing head 11 is twisted, so that the sealing head 11 is firmly fixed on the outer shaft sleeve 53, the sealing ring layer 12 at the joint of the sealing head 11 and the outer shaft sleeve 53 can play a role of water and dust prevention, meanwhile, the sealing head 11 can also prevent dust or other foreign matters from being clamped into the connection gap between the outer shaft sleeve 53 and the inner rotating sleeve 55, so as to effectively avoid rusting inside the bearing or being clamped by the foreign matters, thereby effectively prolonging the service life of the utility model, meanwhile, the utility model is provided with the outer shaft sleeve 53 and the inner rotating sleeve 55 on the basis of the existing upper rotating bearing for the tunnel trolley with supporting function, and the inner ring layer of the outer shaft sleeve 53 is provided with balls 52, when the rotating shaft fixed in the inner rotating sleeve 55 starts to rotate, the inner rotating sleeve 55 can start to rotate in the outer shaft sleeve 53 at the same time under the action of, the ball 52 that sets up on the outer axle sleeve 53 can effectually reduce interior rotating sleeve 55 pivoted frictional force to can effectual improvement the utility model discloses a work efficiency and practicality.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. The utility model provides a tunnel dolly of effect of supporting is with upper end rolling bearing, includes installation head (5) and oil filler point (6), its characterized in that: the top intermediate position department of installing head (5) is provided with oil filler point (6), and is provided with sealing device (1) on installing head (5), sealing device (1) is including sealed head (11), seal ring layer (12), connector (13) and through-hole (14), be provided with seal ring layer (12) on the medial surface of sealed head (11), and the intermediate position department of sealed head (11) medial surface is provided with connector (13), the intermediate position department of sealing device (1) transversely is provided with through-hole (14) around running through, the left and right sides of installing head (5) all is provided with fixed plate (3), two all be provided with on fixed plate (3) fixed orifices (2), two all be provided with bolt (4) in fixed orifices (2).

2. The upper end rotary bearing for supporting tunnel carriage as claimed in claim 1, wherein: the mounting head (5) comprises limiting blocks (51), balls (52), an outer shaft sleeve (53), thread connecting grooves (54), an inner rotating sleeve (55) and a shaft hole (56), the thread connecting grooves (54) are formed in the outer shaft sleeve (53), the limiting blocks (51) are arranged on the inner side ring layer of the outer shaft sleeve (53), the balls (52) are arranged between the limiting blocks (51), the inner rotating sleeve (55) is arranged in the outer shaft sleeve (53), and the shaft hole (56) which penetrates through the front and the rear is transversely formed in the middle position of the inner rotating sleeve (55).

3. The upper end rotary bearing for supporting tunnel carriage as claimed in claim 1, wherein: the length and the shape of the two fixing plates (3) are the same, and the diameter and the shape of the two fixing holes (2) are the same.

4. The upper end rotary bearing for supporting tunnel carriage as claimed in claim 1, wherein: the sealing device (1) is provided with two sealing devices, the size and the structure of the two sealing devices (1) are the same, and the two sealing devices (1) are respectively arranged on two side faces of the mounting head (5).

5. The upper end rotary bearing for supporting tunnel carriage as claimed in claim 1, wherein: the thickness of the sealing ring layer (12) is 3mm, and the thickness of the sealing head (11) is 2 cm.

6. The upper end rotary bearing for supporting tunnel carriage as claimed in claim 2, wherein: thirteen rolling balls (52) are arranged, and the sizes and the shapes of the thirteen rolling balls (52) are the same.

7. The upper end rotary bearing for supporting tunnel carriage as claimed in claim 2, wherein: the thickness of the outer shaft sleeve (53) is twice that of the inner rotating sleeve (55), the outer shaft sleeve (53) and the inner rotating sleeve (55) are made of the same material, and a clamping groove is formed in the middle of the outer ring layer of the inner rotating sleeve (55).

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