CN110630688A

CN110630688A - Tooth chain for large vehicle

Info

Publication number: CN110630688A
Application number: CN201910920650.0A
Authority: CN
Inventors: 寿飞峰; 汪振晓; 黄明显; 宣海龙
Original assignee: Kunshan Hongyuan Chain Co Ltd
Current assignee: Kunshan Hongyuan Chain Co Ltd
Priority date: 2019-09-27
Filing date: 2019-09-27
Publication date: 2019-12-31

Abstract

The invention discloses a tooth-shaped chain for a large-sized vehicle, which comprises a plurality of connecting shaft groups, a first inner chain sheet, a second inner chain sheet and an outer chain sheet which are annularly distributed, wherein both ends of the first inner chain sheet and the second inner chain sheet are provided with waist holes for the insertion of the connecting shaft groups, the connecting shaft groups are alternately inserted with a plurality of first inner chain sheets and second inner chain sheets, the other waist holes of the first inner chain sheet and the second inner chain sheet on the same connecting shaft group are respectively sleeved on two connecting shaft groups adjacent to the connecting shaft groups, each connecting shaft group comprises a long flat shaft and a short flat shaft, one side edges of the long flat shaft and one side edge of the short flat shaft are contacted, the tooth-shaped chain for the large-sized vehicle is smaller relative to gear transmission by reducing the friction coefficient when the first inner chain sheet, the second inner chain sheet, the outer chain sheet and the connecting shaft groups are transmitted, and reducing the noise when the chain is meshed with gears, the weight is lighter.

Description

Tooth chain for large vehicle

Technical Field

The invention relates to the technical field of vehicles, in particular to a toothed chain for a large vehicle.

Background

For a four-wheel drive transfer case of a large truck and a large special vehicle, a gear drive type transfer case is generally adopted in the current market, but for the transmission gear drive type transfer case with large wheel base and high torque force, the biggest defects are large size, heavy weight and high noise. To this end, a toothed chain for large vehicles is proposed.

Disclosure of Invention

The present invention is directed to a toothed chain for a large vehicle to solve the above-mentioned problems of the related art.

In order to achieve the purpose, the invention provides the following technical scheme: a tooth-shaped chain for a large vehicle comprises a plurality of connecting shaft groups, a first inner chain piece, a second inner chain piece and an outer chain piece which are distributed in an annular mode, waist holes for inserting the connecting shaft groups are formed in two ends of the first inner chain piece and the second inner chain piece, the connecting shaft groups are alternately inserted with the first inner chain pieces and the second inner chain pieces, the other waist holes of the first inner chain piece and the second inner chain piece on the same connecting shaft group are respectively sleeved on two connecting shaft groups adjacent to the connecting shaft groups, each connecting shaft group comprises a long flat shaft and a short flat shaft, one side edges of the long flat shaft and one side edge of the short flat shaft are in contact, the first inner chain pieces and the second inner chain pieces alternately inserted on the same connecting shaft group form a chain piece group, the two end positions of the chain piece group are the first inner chain pieces, the length of the short flat shaft is equal to the length of the chain piece group, and the long flat shafts are fixedly connected through the outer chain pieces, and the outer chain sheet is positioned at two ends of the long flat shaft, and the inner side of the outer chain sheet is contacted with the first inner chain sheet at the end part of the chain sheet group.

Preferably, the waist hole is in clearance fit with the connecting shaft group.

Preferably, flat holes are symmetrically formed in the outer chain sheet, and the long flat shaft is in interference fit with the flat holes in the outer chain sheet.

Preferably, the end of the long flat shaft is exposed to the air through a flat hole in the outer chain sheet.

Preferably, a plurality of gear grooves are formed on the inner sides of the first inner chain sheets and the second inner chain sheets.

Preferably, the outer links cover both ends of the gear groove.

Preferably, the gear groove is involute.

Compared with the prior art, the invention has the beneficial effects that: under the requirement of the maximum rotating speed of the transfer case, the chain pin shaft adopts a long flat shaft and a short flat shaft with circular arcs as a pair of pins, so that the meshing motion of the toothed chain and the gear is converted into rolling friction and pitch shrinkage, the maximum advantage of the toothed chain is exerted, the friction coefficient of the first inner chain sheet, the second inner chain sheet, the outer chain sheet and the connecting shaft group during transmission is reduced, the noise of the chain and the gear during meshing is reduced, and the chain pin shaft is smaller in size and lighter in weight compared with the gear transmission.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of a connecting shaft assembly according to the present invention;

FIG. 3 is a schematic view of a first inner link structure according to the present invention;

FIG. 4 is a schematic view of a second inner link structure according to the present invention;

FIG. 5 is a schematic view of the long flat shaft structure of the present invention;

fig. 6 is a schematic view of the present invention engaged with a gear.

In the figure: 1. connecting the shaft set; 2. a first inner link; 3. a second inner link; 4. a waist hole; 5. a long flat shaft; 6. a short flat shaft; 7. a chain sheet group; 8. an outer link; 9. a gear groove; 10. a gear.

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 a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-6, the present invention provides a technical solution: a toothed chain for a large vehicle comprises a plurality of connecting shaft groups 1, a first inner chain piece 2, a second inner chain piece 3 and an outer chain piece 8 which are distributed annularly, waist holes 4 for the connecting shaft groups 1 to penetrate through are formed in two ends of the first inner chain piece 2 and the second inner chain piece 3, the connecting shaft groups 1 alternately penetrate through the first inner chain piece 2 and the second inner chain piece 3, the other waist holes 4 of the first inner chain piece 2 and the second inner chain piece 3 on the same connecting shaft group 1 are respectively sleeved on two adjacent connecting shaft groups 1 of the connecting shaft group 1, the connecting shaft group 1 comprises a long flat shaft 5 and a short flat shaft 6, a chain pin shaft adopts double pins of the long flat shaft 5 and the short flat shaft 6 with circular arcs, so that the meshing motion of the chain and a gear 10 is converted into rolling motion and pitch friction and shrinkage, and the friction coefficient and the gear friction and the gear 10 when the first inner chain piece 2, the second inner chain piece 3 and the outer chain piece 8 and the connecting shaft groups 1 are in transmission are reduced, and one side of long flat axle 5 and short flat axle 6 contacts, and a chain piece group 7 is constituteed to chain piece 2 in a plurality of that same connecting axle group 1 alternates and second, and the both ends position of chain piece group 7 is first interior chain piece 2, the length of short flat axle 6 equals with chain piece group 7 length, and a plurality of long flat axle 5 is two liang through outer chain piece 8 fixed connection, and outer chain piece 8 is located the both ends of long flat axle 5, the inboard first interior chain piece 2 contact with chain piece group 7 tip of 8 inboards of outer chain piece.

The waist hole 4 is in clearance fit with the connecting shaft group 1, so that the installation is convenient and the connection is more stable; flat holes are symmetrically formed in the outer chain sheet 8, and the long flat shaft 5 is in interference fit with the flat holes in the outer chain sheet 8, so that the maintenance and installation are convenient; the end part of the long flat shaft 5 penetrates through a flat hole in the outer chain sheet 8 and is exposed in the air, so that the connection area is increased, and the connection is more stable; a plurality of if each gear groove 9 is formed to the inboard of first inner link 2 and second inner link 3, be convenient for with the meshing of gear 10, outer link 8 covers the both ends of gear groove 9, prevents that gear 10 from breaking away from gear groove 9, gear groove 9 is involute shape, adopts the design of gradually opening the seams, promotes the transmission efficiency when high-speed operation, increases the stability, reduces the noise when this chain and gear 10 mesh.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

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

1. The utility model provides a tooth chain for oversize vehicle, is a plurality of connecting axle group (1), first interior chain piece (2), second interior chain piece (3) and outer chain piece (8) that the annular distributes including a plurality of, its characterized in that: the two ends of the first inner chain sheet (2) and the second inner chain sheet (3) are respectively provided with a waist hole (4) for the connection shaft group (1) to penetrate, the connection shaft group (1) is alternately penetrated by a plurality of first inner chain sheets (2) and second inner chain sheets (3), the first inner chain sheets (2) and the second inner chain sheets (3) are respectively sleeved on two adjacent connection shaft groups (1) of the connection shaft group (1), the connection shaft group (1) comprises a long flat shaft (5) and a short flat shaft (6), one side edge of the long flat shaft (5) is contacted with one side edge of the short flat shaft (6), the first inner chain sheets (2) and the second inner chain sheets (3) alternately penetrated on the same connection shaft group (1) form a chain sheet group (7), and the two end positions of the chain sheet group (7) are the first inner chain sheets (2), the length of short flat shaft (6) equals with chain piece group (7) length, and a plurality of long flat shaft (5) are two liang through outer chain piece (8) fixed connection, and outer chain piece (8) are located the both ends of long flat shaft (5), outer chain piece (8) inboard and chain piece group (7) tip first interior chain piece (2) contact.

2. The toothed chain for large vehicles according to claim 1, wherein: the waist hole (4) is in clearance fit with the connecting shaft group (1).

3. The toothed chain for large vehicles according to claim 1, wherein: flat holes are symmetrically formed in the outer chain sheet (8), and the long flat shaft (5) is in interference fit with the flat holes in the outer chain sheet (8).

4. The toothed chain for large vehicles according to claim 3, wherein: the end part of the long flat shaft (5) passes through a flat hole in the outer chain sheet (8) and is exposed in the air.

5. The toothed chain for large vehicles according to claim 1, wherein: and a plurality of gear grooves (9) are formed on the inner sides of the first inner chain sheets (2) and the second inner chain sheets (3).

6. The toothed chain for large vehicles according to claim 5, wherein: the outer chain sheet (8) covers two ends of the gear groove (9).

7. The toothed chain for large vehicles according to claim 6, wherein: the gear groove (9) is in an involute shape.