CN214999110U

CN214999110U - Engine balance shaft structure

Info

Publication number: CN214999110U
Application number: CN202121758963.XU
Authority: CN
Inventors: 罗宇
Original assignee: Linama Automobile System Chongqing Co ltd
Current assignee: Linama Automobile System Chongqing Co ltd
Priority date: 2021-07-30
Filing date: 2021-07-30
Publication date: 2021-12-03
Anticipated expiration: 2031-07-30

Abstract

The utility model relates to the technical field of balance shafts, in particular to an engine balance shaft structure, which comprises a balance shaft main body, wherein a thread groove is arranged at the middle position inside the balance shaft main body, an eccentric weight block is arranged at the top end of the balance shaft main body, a bearing is arranged at one end of the balance shaft main body, which is far away from the eccentric weight block, a fluted disc is arranged at the bottom end of the bearing, a latch is arranged on the surface of the fluted disc, a first fixed block is fixedly connected to the surface of the bottom end of the eccentric weight block, and a second fixed block is fixedly connected to the surface of the top end of the balance shaft main body; the installation mechanism comprises an insertion rod, and the insertion rod is inserted into the first fixing block and the second fixing block. The utility model discloses an under spring force effect, inside making the inserted bar stretch into first fixed block and second fixed block, realize the installation to eccentric pouring weight and balanced axle main part, inside driving inserted bar one side through the pulling arm-tie and breaking away from first fixed block and second fixed block, realize the separation operation to eccentric pouring weight and balanced axle main part.

Description

Engine balance shaft structure

Technical Field

The utility model relates to a balance shaft technical field specifically is an engine balance axle construction.

Background

The balance shaft technology is a technology widely applied in an automobile engine, has a simple and practical structure, can effectively reduce the vibration of the whole automobile of the automobile and improve the driving comfort, and along with the rapid development of the automobile industry, the existing balance shaft basically meets the requirements of people, but still has some problems.

The existing balance shaft is basically provided with an eccentric weight block and rotates along with a crankshaft synchronously, the engine obtains good balance effect by utilizing the reverse vibration force generated by the eccentric weight block, the vibration of the engine is reduced, the eccentric weight block and the shaft are integrated, the vibration degree of the engine is different from the vibration degree of the engine when the engine is just delivered as the automobile is lengthened, and the gravity of the eccentric weight block is probably not suitable for the damping of the engine at the moment, so the practicability of the device is reduced.

SUMMERY OF THE UTILITY MODEL

In order to overcome the above technical problem, an object of the present invention is to provide a balance shaft structure of an engine, so as to solve the problem that the existing eccentric weight and shaft in the above background art are integrated and cannot be replaced.

In order to achieve the above object, the utility model provides a following technical scheme: an engine balance shaft structure comprising:

the balance shaft comprises a balance shaft main body, wherein a threaded groove is formed in the middle position inside the balance shaft main body, an eccentric weight block is arranged at the top end of the balance shaft main body, a bearing is arranged at one end, away from the eccentric weight block, of the balance shaft main body, a fluted disc is arranged at the bottom end of the bearing, clamping teeth are arranged on the surface of the fluted disc, a first fixed block is fixedly connected to the surface of the bottom end of the eccentric weight block, and a second fixed block is fixedly connected to the surface of the top end of the balance shaft main body;

installation mechanism, including the inserted bar, first fixed block and the inside inserted bar that is equipped with of second fixed block, the inserted bar is kept away from the equal fixedly connected with connecting plate in both ends about first fixed block one side, first fixed block one side fixed surface is connected with the fixed plate.

Preferably, an inner shaft is arranged in the balance shaft main body, and a slotted hole is formed in the inner shaft.

Preferably, one side of the inserted bar, which is far away from the first fixed block, is fixedly connected with a pulling plate, and the pulling plate is made of a rubber material.

Preferably, a spring is arranged in the fixing plate, and two sides of the spring are respectively and fixedly connected to the surfaces of the connecting plate and the pulling plate.

Preferably, a screw rod is inserted into the inner shaft and the slotted hole, and the screw rod also penetrates through the balance shaft main body.

Preferably, one side of the screw, which is far away from the balance shaft main body, is fixedly connected with an adjusting block.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the engine balance shaft structure is provided with an inserted link, a connecting plate, a fixed plate, a spring and a pulling plate, through the design, the device is provided with an installation mechanism, the eccentric weight and a balance shaft main body can be conveniently separated, the engine shake change is adapted through the replaced eccentric weight, the inserted link is enabled to extend into the first fixed block and the second fixed block to realize the installation of the eccentric weight and the balance shaft main body under the action of the spring elasticity, the pulling plate is pulled to one side far away from the first fixed block to drive the inserted link to move to one side far away from the first fixed block until one side far away from the pulling plate of the inserted link is separated from the inside of the first fixed block and the second fixed block, the separation operation of the eccentric weight and the balance shaft main body is realized, and the practicability and the convenience of the device are improved;

2. this engine balance shaft structure is provided with screw rod and regulating block, through the aforesaid design, makes the difficult cracked condition of taking place of balance shaft main part in the rotation process, stretches into balance shaft main part and interior axle and slotted hole inside through the screw rod, and the regulating block is fixed on the screw rod top, realizes preventing cracked operation, has improved the stability of device.

Drawings

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a perspective view of the present invention;

FIG. 3 is a perspective view of the eccentric weight of the present invention;

FIG. 4 is an exploded view of the structure of the installation mechanism of the present invention;

fig. 5 is an enlarged schematic view of a structure shown in fig. 2 according to the present invention.

In the figure: 110. a balance shaft body; 111. a thread groove; 120. an inner shaft; 121. a slot; 130. an eccentric weight; 140. a bearing; 150. a fluted disc; 151. clamping teeth; 160. a first fixed block; 170. a second fixed block; 210. inserting a rod; 220. a connecting plate; 230. a fixing plate; 240. a spring; 250. pulling a plate; 310. a screw; 320. and a regulating block.

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. 1-5, the present invention provides an embodiment: an engine balance shaft structure comprising:

the balance shaft comprises a balance shaft main body 110, wherein a threaded groove 111 is formed in the middle position inside the balance shaft main body 110, an eccentric weight 130 is arranged at the top end of the balance shaft main body 110, a bearing 140 is arranged at one end, away from the eccentric weight 130, of the balance shaft main body 110, a fluted disc 150 is arranged at the bottom end of the bearing 140, a clamping tooth 151 is arranged on the surface of the fluted disc 150, a first fixed block 160 is fixedly connected to the surface of the bottom end of the eccentric weight 130, and a second fixed block 170 is fixedly connected to the surface of the top end of the balance shaft main body 110;

installation mechanism, including inserted bar 210, first fixed block 160 and second fixed block 170 are inside to be inserted and to be equipped with inserted bar 210, inserted bar 210 keeps away from the equal fixedly connected with connecting plate 220 in both ends about first fixed block 160 one side, first fixed block 160 one side fixed surface is connected with fixed plate 230, through this design, make the device possess installation mechanism, can realize the separation operation to balance shaft main part 110 and eccentric pouring weight 130, through the eccentric pouring weight 130 of more renewing, adapt to the change of engine shake, realize absorbing operation, the practicality and the convenience of device have been improved.

An inner shaft 120 is arranged inside the balance shaft main body 110, and a slotted hole 121 is formed inside the inner shaft 120.

The pull plate 250 is fixedly connected to one side, far away from the first fixing block 160, of the insertion rod 210, the pull plate 250 is made of rubber materials, and through the design, when the pull plate 250 is pulled, friction between the pull plate 250 and a palm can be increased, so that the phenomenon of hand release cannot occur in the pulling process, and the stability of the device is improved.

The inside spring 240 that is provided with of fixed plate 230, and spring 240 both sides difference fixed connection is on the surface of connecting plate 220 and arm-tie 250, through this design, under spring 240 spring action, make the inserted bar 210 stretch into inside first fixed block 160 and the second fixed block 170, realize the installation operation to balanced axle main part 110 and eccentric pouring weight 130, and be convenient for dismantle the change to eccentric pouring weight 130, improved the convenience and the practicality of device.

The screw rod 310 is inserted into the inner shaft 120 and the slotted hole 121, and the screw rod 310 also penetrates through the balance shaft main body 110, so that the balance shaft main body 110 and the inner shaft 120 can coaxially rotate, the balance shaft main body 110 can be effectively prevented from being broken in the rotating process, and the protection performance of the device is improved.

The adjusting block 320 is fixedly connected to one side, away from the balance shaft main body 110, of the screw 310, and through the design, the screw 310 can be conveniently adjusted, and the convenience of the device is improved.

The working principle is as follows: the eccentric weight 130 is replaced to adapt to the change of engine shake, the insertion rod 210 extends into the first fixed block 160 and the second fixed block 170 under the action of the elastic force of the spring 240 to realize the installation of the eccentric weight 130 and the balance shaft main body 110, the pull plate 250 is pulled to one side far away from the first fixed block 160 to drive the insertion rod 210 to move to one side far away from the first fixed block 160 until one side far away from the pull plate 250 of the insertion rod 210 is separated from the interiors of the first fixed block 160 and the second fixed block 170, and the separation operation of the eccentric weight 130 and the balance shaft main body 110 is realized;

the screw 310 extends into the balance shaft main body 110, the inner shaft 120 and the slotted hole 121, and the adjusting block 320 is fixed at the top end of the screw 310, so that the anti-fracture operation is realized, and the operation is finished.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. An engine balance shaft structure, comprising:

the balance shaft comprises a balance shaft main body (110), wherein a threaded groove (111) is formed in the middle position inside the balance shaft main body (110), an eccentric weight (130) is arranged at the top end of the balance shaft main body (110), a bearing (140) is arranged at one end, far away from the eccentric weight (130), of the balance shaft main body (110), a fluted disc (150) is arranged at the bottom end of the bearing (140), clamping teeth (151) are arranged on the surface of the fluted disc (150), a first fixing block (160) is fixedly connected to the surface of the bottom end of the eccentric weight (130), and a second fixing block (170) is fixedly connected to the surface of the top end of the balance shaft main body (110);

installation mechanism, including inserted bar (210), first fixed block (160) and second fixed block (170) are inside to be inserted and are equipped with inserted bar (210), inserted bar (210) are kept away from first fixed block (160) one side both ends fixedly connected with connecting plate (220) from top to bottom, first fixed block (160) one side fixed surface is connected with fixed plate (230).

2. The engine balance shaft structure according to claim 1, wherein: an inner shaft (120) is arranged in the balance shaft main body (110), and a slotted hole (121) is formed in the inner shaft (120).

3. The engine balance shaft structure according to claim 1, wherein: one side, far away from the first fixing block (160), of the insertion rod (210) is fixedly connected with a pulling plate (250), and the pulling plate (250) is made of rubber materials.

4. The engine balance shaft structure according to claim 1, wherein: the fixing plate (230) is internally provided with a spring (240), and two sides of the spring (240) are respectively and fixedly connected to the surfaces of the connecting plate (220) and the pulling plate (250).

5. The engine balance shaft structure according to claim 2, wherein: a screw rod (310) is inserted into the inner shaft (120) and the slotted hole (121), and the screw rod (310) also penetrates through the balance shaft main body (110).

6. The engine balance shaft structure according to claim 5, wherein: and one side of the screw rod (310) far away from the balance shaft main body (110) is fixedly connected with an adjusting block (320).