CN210912659U

CN210912659U - Thrust wheel

Info

Publication number: CN210912659U
Application number: CN201921205280.4U
Authority: CN
Inventors: 彭国华; 彭国辉; 彭彬; 付满堂; 彭建乔; 王成
Original assignee: Liaoning Rongcai Machinery Manufacturing Co ltd
Current assignee: Liaoning Rongcai Machinery Manufacturing Co ltd
Priority date: 2019-07-29
Filing date: 2019-07-29
Publication date: 2020-07-03
Anticipated expiration: 2029-07-29

Abstract

The utility model discloses a thrust wheel, which comprises a central shaft; the two supporting pieces are provided with oil inlet channels and are symmetrically connected to two ends of the central shaft, and each supporting piece is connected with the central shaft through at least one pin shaft; each support piece and the central shaft are provided with a first notch for connecting and positioning the support piece and the crawler beam; a supporting wheel body which is sleeved on the central shaft through two sliding bearings and is arranged between the two supporting pieces; two floating seals respectively connected between the support member and the thrust wheel body; and two first seals respectively connected between the central shaft and the support member; thereby overcome the poor technical problem of structural reliability when the thrust wheel assembles, reached guarantee structural strength, safe and reliable's technological effect, the practicality is strong.

Description

Thrust wheel

Technical Field

The utility model relates to a strutting arrangement technical field that engineering machine tool was last used, specific thrust wheel that says so.

Background

The thrust wheel is one of four wheels and one belt of a chassis of the crawler-type engineering machinery, and mainly has the functions of supporting the weight of the excavator and the bulldozer and enabling the crawler to advance along the wheel; the discovery has following not at least not enough in specific use, and screw hole is reserved through center pin both ends to general thrust wheel, penetrates the bolt and assembles on the track roof beam, and this kind of structure bolt need bear great load, consequently has cracked risk, and structural reliability is relatively poor.

SUMMERY OF THE UTILITY MODEL

To the above-mentioned weak point that exists among the correlation technique, the utility model aims at providing a thrust wheel to solve above technical problem.

The utility model discloses a realize that the technical scheme that above-mentioned purpose adopted is: a thrust wheel is structurally characterized by comprising:

a central shaft;

the two supporting pieces are provided with oil inlet channels and are symmetrically connected to two ends of the central shaft, and each supporting piece is connected with the central shaft through at least one pin shaft; each support piece and the central shaft are provided with a first notch for connecting and positioning the support piece and the crawler beam;

a supporting wheel body which is sleeved on the central shaft through two sliding bearings and is arranged between the two supporting pieces;

two floating seals respectively connected between the support member and the thrust wheel body;

and two first seals respectively connected between the central shaft and the support member.

Furthermore, a plurality of first oil grooves are formed in the central shaft at the matching part of the central shaft and the sliding bearing; the first oil groove is communicated with the oil inlet channel.

Further, the oil inlet channel comprises a step through hole for filling oil and connecting a plug; the first through hole is vertically arranged with the step through hole and is communicated with the floating seal and the step through hole; and a semicircular blind hole communicated with the first through hole.

Furthermore, the supporting wheel body comprises a wheel rim, and two ends of the wheel rim are provided with step grooves for matching with the supporting piece, the floating seal and the sliding bearing; and a boss arranged on the outer circle of the rim.

Furthermore, the thrust wheel body also comprises a plurality of second oil grooves which are arranged at the inner hole of the rim.

Further, a space is reserved between the two sliding bearings; the space, with first oil groove, the second oil groove with the oil feed passageway communicates with each other.

The utility model has the advantages that: a thrust wheel, compared with the related art, the thrust wheel body is through two slide bearings, according to the normal tolerance clearance fit on the central axis, and then connect to both ends of central axis through two strutting pieces, spacing thrust wheel body and slide bearing, set up the floating seal between strutting piece and thrust wheel body at the same time, and set up the first seal between strutting piece and central axis, when the lubricating oil is led in by the oil inlet channel, the lubricating oil can be sealed well, after passing the first breach on strutting piece and central axis, connect with the track beam and position, the intensity of the structure is higher, and guarantee the thrust wheel body and slide bearing can be rotated reliably, smoothly; the technical problem of poor structural reliability when the thrust wheel is assembled is solved, the technical effects of ensuring structural strength and safety and reliability are achieved, and the practicability is high.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

fig. 2 is a schematic three-dimensional structure diagram of an embodiment of the present invention;

fig. 3 is a schematic three-dimensional structure diagram of a supporting member according to an embodiment of the present invention;

fig. 4 is a schematic three-dimensional structure diagram of a central shaft in an embodiment of the present invention;

fig. 5 is a schematic three-dimensional structure view of a thrust wheel body according to an embodiment of the present invention;

fig. 6 is a cross-sectional view of a thrust wheel body according to an embodiment of the present invention;

fig. 7 is a schematic view of the connection between the central shaft and the track beam in the prior art of the present invention;

in the figure: 10. the bearing comprises a central shaft, 11 parts, a first oil groove, 20 parts, a support part, 21 parts, an oil inlet channel, 211 parts, a step through hole, 212 parts, a first through hole, 213 parts, a semicircular blind hole, 22 parts, a first notch, 23 parts, a plug, 30 parts, a pin shaft, 40 parts, a supporting wheel body, 41 parts, a rim, 411 parts, a step groove, 42 parts, a boss, 43 parts, a second oil groove, 50 parts, a sliding bearing, 51 parts, a space, 60 parts, a floating seal and 70 parts, and a first seal.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the 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;

the utility model relates to a thrust wheel, which solves the technical problem of poor structural reliability when the thrust wheel in the related technology is assembled; the manufacturing and using of the composite material can be realized, and the positive effects of ensuring the structural strength, safety and reliability can be achieved; the general idea is as follows:

the first embodiment is as follows:

see fig. 1, 2, 3; a bogie wheel comprising:

a central shaft 10;

two supporting members 20, each having an oil inlet passage 21, symmetrically connected to both ends of the central shaft 10, each of the supporting members 20 being connected to the central shaft 10 by two pins 30; each support 20 and the central shaft 10 are provided with a first gap 22 for connecting and positioning with a track beam;

a weight wheel body 40 sleeved on the central shaft 10 through two sliding bearings 50 and arranged between the two supporting pieces 20;

two floating seals 60 respectively connected between the supporting member 20 and the weight wheel body 40;

and two first seals 70 respectively connected between the central shaft 10 and the support member 20;

specifically, during implementation, the thrust wheel body 40 is in clearance fit on the central shaft 10 according to normal tolerance through the two sliding bearings 50, and is connected to two ends of the central shaft 10 through the two supporting pieces 20, so that the thrust wheel body 40 and the sliding bearings 50 are limited, meanwhile, the floating seal 60 is arranged between the supporting pieces 20 and the thrust wheel body 40, the first seal 70 is arranged between the supporting pieces 20 and the central shaft 10, when lubricating oil is introduced from the oil inlet channel 21, the lubricating oil can be well sealed, and after the lubricating oil is connected and positioned with the track beam through the first notches 22 on the supporting pieces 20 and the central shaft 10 and threaded with bolts, the structural strength is high, and the thrust wheel body 40 and the sliding bearings 50 can be ensured to reliably and smoothly rotate; therefore, the technical problem of poor structural reliability during the assembly of the thrust wheel is solved, and the technical effects of ensuring structural strength, safety and reliability are achieved;

the following is a detailed description of the respective constituent elements and the connection relationship:

specifically, in fig. 1 and 2, the central shaft 10 is a stepped shaft, is formed by forging a blank, is machined, is tightly fitted with the support member 20 according to normal tolerance, and is inserted between the central shaft 10 and the support member 20 through two pin shafts 30, so that the central shaft 10 and the support member 20 are reliably positioned; the central shaft 10 and the sliding bearing 50 are in clearance fit according to normal tolerance, and lubricating oil can lubricate in the clearance, so that the thrust wheel body 40 and the sliding bearing 50 can reliably and smoothly rotate;

specifically, in fig. 1, 2, 3, 7, the support 20 is integrally cast and then machined; the first notch 22 is milled on a milling machine after the support member 20 and the central shaft 10 are matched; when the crawler belt is installed, the first notch 22 is downward, the first notch 22 is clamped on the end part of the crawler belt beam, and the end part of the crawler belt beam penetrates through the bolt to be connected with the threaded hole reserved on the support member 20, so that the supporting wheel can be well supported and connected on the crawler belt beam;

specifically, in fig. 1, 2 and 3, the oil inlet passage 21 includes a stepped through hole 211 for filling oil and for connecting the plug 23; a first through hole 212 vertically disposed with the stepped through hole 211 and communicating with the floating seal 60 and the stepped through hole 211; and a semicircular blind hole 213 communicating with the first through hole 212; when lubricating oil needs to be added, the lubricating oil is injected through the stepped through hole 211, and enters from the semicircular blind hole 213 through the first through hole 212, so that lubrication is formed in gaps among the central shaft 10, the supporting piece 20, the thrust wheel body 40 and the sliding bearing 50, and the thrust wheel body 40 and the sliding bearing 50 can reliably and smoothly rotate; after the lubricating oil is filled, the lubricating oil is connected in the step through hole 211 through the thread of the plug 23, so that the lubricating oil is prevented from flowing out;

specifically, in fig. 1 and 2, the thrust wheel body 40 includes a rim 41 having stepped grooves 411 at both ends for cooperating with the support member 20, the floating seal 60 and the sliding bearing 50; and a boss 42 provided on an outer circumference of the rim 41; the thrust wheel body 40 is formed by forging a blank and machining; the wheel rim 41 is arranged to support the crawler, and the lug bosses 42 are clamped with the crawler, so that the crawler cannot slide out of the thrust wheels;

specifically, in fig. 1 and 2, the sliding bearing 50 is of a structure in the prior art, has a "T" shape, is tightly fitted with the inner hole of the rim 41 according to normal tolerance, and cannot be locked with the central shaft 10 when the thrust wheel body 40 rotates;

specifically, in fig. 1 and 2, the floating seal 60 adopts a structure of the prior art, and prevents the lubricant from leaking out from the gap between the support member 20 and the bogie wheel body 40;

specifically, in fig. 1 and 2, the first seal 70 is an O-ring that prevents oil from leaking out of the gap between the support member 20 and the central shaft 10;

specifically, when the center shaft 10 is mounted, the entire center shaft is engaged with the center wheel body 40 and the slide bearing 50 after the engagement; mounting floating seal 60 on support member 20, mounting first seal 70 on support member 20, mating support member 20 with central shaft 10, slowly striking in, aligning position, and driving pin 30;

example two:

see fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6; on the basis of the first embodiment, the method comprises the following steps of,

six first oil grooves 11 are formed in the central shaft 10 at the positions matched with the sliding bearings 50; the first oil groove 11 is communicated with the oil inlet channel 21;

the thrust wheel body 40 further comprises six second oil grooves 43 arranged at the inner holes of the rim 41;

a space 51 is left between the two sliding bearings 50; the space 51 is communicated with the first oil groove 11, the second oil groove 43 and the oil inlet passage 21;

in implementation, by providing the first oil groove 11, the second oil groove 43 and the space 51, when the lubricating oil enters from the oil inlet channel 21, the first oil groove 11, the second oil groove 43 and the space 51 can be filled with the lubricating oil, and the amount of the lubricating oil is relatively large, so that the lubricating effect is ensured, and the thrust wheel body 40 and the sliding bearing 50 can rotate more reliably and smoothly;

the utility model discloses a theory of operation: during implementation, the thrust wheel body 40 is in clearance fit on the central shaft 10 according to normal tolerance through the two sliding bearings 50, and then is connected at two ends of the central shaft 10 through the two supporting pieces 20, the thrust wheel body 40 and the sliding bearings 50 are limited, meanwhile, the floating seal 60 is arranged between the supporting piece 20 and the thrust wheel body 40, and the first seal 70 is arranged between the supporting piece 20 and the central shaft 10.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "front", "rear", and the like, which indicate orientations or positional relationships, are based on the positional relationships illustrated in the drawings, and are only for convenience of describing the present invention or simplifying the description, but do not indicate specific orientations that must be provided; the operation processes described in the embodiments are not absolute use steps, and may be adjusted accordingly when actually used.

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs; the use of "first," "second," and the like in the description and in the claims is not intended to identify any order, quantity, or importance, but rather is used to distinguish one element from another, and similarly, the use of "a" or "an" and the like do not necessarily indicate a limitation of quantity, but rather indicate the presence of at least one, depending on the context of the embodiment.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A thrust wheel, comprising:

a central shaft (10);

two supporting members (20) which are provided with oil inlet channels (21) and are symmetrically connected to two ends of the central shaft (10), and each supporting member (20) is connected with the central shaft (10) through at least one pin shaft (30); each support (20) and the central shaft (10) are provided with a first notch (22) for connecting and positioning with the track beam;

a supporting wheel body (40) which is sleeved on the central shaft (10) through two sliding bearings (50) and is arranged between the two supporting pieces (20);

two floating seals (60) respectively connected between the support member (20) and the thrust wheel body (40);

and two first seals (70) respectively connected between the central shaft (10) and the support (20).

2. A bogie wheel according to claim 1, wherein: a plurality of first oil grooves (11) are formed in the central shaft (10) at the matching part with the sliding bearing (50); the first oil groove (11) is communicated with the oil inlet channel (21).

3. A bogie wheel according to any one of claims 1 or 2, wherein: the oil inlet channel (21) comprises a step through hole (211) for filling oil and connecting a plug (23); a first through hole (212) vertically disposed with the stepped through hole (211) and communicating with the floating seal (60) and the stepped through hole (211); and a semicircular blind hole (213) communicated with the first through hole (212).

4. A bogie wheel according to claim 2, wherein: the thrust wheel body (40) comprises a rim (41) with stepped grooves (411) at both ends for cooperating with the support (20), the floating seal (60) and the sliding bearing (50); and a boss (42) provided on an outer circumference of the rim (41).

5. A bogie wheel according to claim 4 wherein: the thrust wheel body (40) further comprises a plurality of second oil grooves (43) which are arranged in inner holes of the rim (41).

6. A bogie wheel according to claim 5, wherein: a space (51) is left between the two sliding bearings (50); the space (51) is communicated with the first oil groove (11), the second oil groove (43) and the oil inlet channel (21).