CN111591133B

CN111591133B - Pull rod structure and car

Info

Publication number: CN111591133B
Application number: CN202010421338.XA
Authority: CN
Inventors: 彭宜爱; 秦政委; 刘双双; 薛博之; 李广涛
Original assignee: Anhui Jianghuai Automobile Group Corp
Current assignee: Anhui Jianghuai Automobile Group Corp
Priority date: 2020-05-18
Filing date: 2020-05-18
Publication date: 2021-05-28
Anticipated expiration: 2040-05-18
Also published as: CN111591133A

Abstract

The invention discloses a pull rod structure and an automobile, wherein the pull rod structure comprises a pull rod assembly and an outer cover assembly, the pull rod assembly comprises a framework and a connecting sleeve which are connected with each other, the framework is used for being connected with a gearbox of the automobile, one end of the framework, which is close to the connecting sleeve, is provided with a breaking part, the breaking part is provided with an impact block, and the breaking part is provided with a through hole at a position close to the impact block; the dustcoat subassembly includes interconnect's dustcoat and first elastic component, and the dustcoat is used for being connected with the sub vehicle frame of vehicle, and the inside at the dustcoat is established to the adapter sleeve cover, and first elastic component is formed with the butt piece that sets up with striking piece relatively, and when striking piece striking butt piece, pull rod assembly breaks in the position of through-hole. The pull rod structure enables the framework to be broken at the through hole, and the purpose that the gearbox is separated from the auxiliary frame is achieved.

Description

Pull rod structure and car

Technical Field

The invention relates to the technical field of automobiles, in particular to a pull rod structure and an automobile.

Background

With the continuous improvement of living standard of people, automobiles enter thousands of households as important vehicles, and the quantity of the automobiles increases year by year on roads.

To provide passenger comfort, the transmission is typically fixedly coupled to the subframe via tie rods to reduce vibration between the transmission and the subframe. However, when whole car collides, current pull rod mechanism can't fracture to make the gearbox can not break away from with the sub vehicle frame, the power assembly who constitutes by gearbox and engine also can't break away from with the sub vehicle frame yet, this just makes the power that the collision produced pass through pull rod mechanism and act on the sub vehicle frame, makes the sub vehicle frame take place to warp, thereby is unfavorable for the safety of protection cockpit personnel.

In view of the above-mentioned drawbacks, there is a need for a new drawbar arrangement and a motor vehicle.

Disclosure of Invention

The invention mainly aims to provide a pull rod structure and an automobile, and aims to solve the problem that an existing pull rod cannot be broken when the whole automobile collides.

In order to achieve the purpose, the pull rod structure provided by the invention comprises a pull rod assembly and an outer cover assembly, wherein the pull rod assembly comprises a framework and a connecting sleeve which are connected with each other, the framework is used for being connected with a gearbox of a vehicle, one end of the framework, which is close to the connecting sleeve, is provided with a breaking part, the breaking part is provided with an impact block, and the breaking part is provided with a through hole at a position close to the impact block; the outer cover assembly comprises an outer cover and a first elastic piece which are connected with each other, the outer cover is used for being connected with an auxiliary frame of the vehicle, the connecting sleeve is sleeved inside the outer cover, the first elastic piece is provided with a butt joint block which is arranged opposite to the collision block, and under the condition that the collision block collides with the butt joint block, the pull rod assembly is broken at the position of the through hole.

Preferably, the inner wall of the through hole is recessed towards the direction of the first elastic piece to form a fracture groove, and the pull rod assembly is broken at the position of the fracture groove under the condition that the impact block impacts the abutting block.

Preferably, the pull rod structure further comprises a connecting rod and a fastener, one end of the connecting rod is abutted to the outer cover assembly, and the other end of the connecting rod penetrates through the connecting sleeve and is connected with the fastener.

Preferably, the breaking part is further provided with a clamping groove communicated with the through hole, and the fastening piece is clamped into the clamping groove.

Preferably, a plurality of buffer grooves arranged at intervals are arranged on one side of the abutting block facing the impact block.

Preferably, the housing is provided with an accommodating cavity for accommodating the first elastic element, and one end of the first elastic element, which is far away from the abutting block, is inserted into the accommodating cavity.

Preferably, the outer cover is further provided with a bearing portion, the first elastic piece is recessed inwards to form an accommodating groove, and the bearing portion is inserted into the accommodating groove and is abutted against one end, away from the impact block, of the abutting block.

Preferably, the first elastic part is further provided with an isolation block, the breaking part is provided with a contact block corresponding to the isolation block, the contact block protrudes to one side close to the first elastic part to form a boss, and the isolation block is provided with an anti-rotation groove for inserting the boss.

Preferably, the housing assembly further comprises a second elastic member connected to an end of the housing remote from the first elastic member, and the connection sleeve passes through the second elastic member.

Preferably, an automobile comprises a tie rod structure as described above.

According to the technical scheme, the impact block is arranged on the broken part at one end of the framework, the abutting block corresponding to the impact block is arranged on the first elastic piece, the through hole is formed in the position, close to the impact block, of the broken part, one end, far away from the connecting sleeve, of the framework is connected with a gearbox of a vehicle, the outer cover is connected with an auxiliary frame of the vehicle, when the front of the whole vehicle collides, stress is transmitted to the framework through the gearbox, the framework collides with the abutting block of the first elastic piece through the impact block on the broken part and compresses the abutting block, the abutting block transmits the impact force to the outer cover, the abutting block is abutted to the outer cover, and then the abutting block exerts opposite force on the impact block.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic structural view of an embodiment of a drawbar arrangement according to the present invention;

FIG. 2 is another angle structure diagram of an embodiment of the drawbar arrangement according to the present invention;

FIG. 3 is a schematic sectional view taken along line A-A of FIG. 2;

FIG. 4 is an enlarged view of FIG. 3 at B;

FIG. 5 is a schematic view of another angle structure of an embodiment of the drawbar arrangement according to the present invention;

fig. 6 is a schematic sectional view taken along line B-B of fig. 5.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				1	Pull rod assembly	211	Containing cavity
11	Framework	212	Bearing part
				111	Breaking part	22	First elastic member
1111	Impact block	221	Abutting block
				1112	Through hole	2211	Buffer tank
1113	Breaking groove	222	Accommodating groove
				1114	Clamping groove	223	Isolation block
1115	Contact block	2231	Anti-rotation slot
				12	Connecting sleeve	23	Second elastic member
2	Housing assembly	3	Connecting rod
				21	Outer cover	4	Fastening piece

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

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.

It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

Referring to fig. 1 and 3, the present invention provides a drawbar structure, including a drawbar assembly 1 and a housing assembly 2, the drawbar assembly 1 includes a frame 11 and a connecting sleeve 12 connected to each other, the frame 11 is used for connecting to a transmission of a vehicle, one end of the frame 11 near the connecting sleeve 12 is provided with a break-off portion 111, the break-off portion 111 is provided with an impact block 1111, and the break-off portion 111 is provided with a through hole 1112 at a position near the impact block 1111; the housing assembly 2 comprises a housing 21 and a first elastic member 22 which are connected with each other, the housing 21 is used for being connected with a sub-frame of a vehicle, the connecting sleeve 12 is sleeved inside the housing 21, the first elastic member 22 is provided with an abutting block 221 which is arranged opposite to the impact block 1111, and in the case that the impact block 1111 impacts the abutting block 221, the pull rod assembly 1 is broken at the position of the through hole 1112.

The drag link structure of the present invention is constructed by providing the impact block 1111 at the break portion 111 at one end of the frame 11, and by providing the first elastic member 22 with the abutment block 221 corresponding to the striking block 1111, and the broken part 111 is also provided with a through hole 1112 near the impact block 1111, one end of the framework 11 far away from the connecting sleeve 12 is connected with a gear box of the vehicle, the outer cover 21 is connected with a sub-frame of the vehicle, when the whole vehicle collides in front, the force applied by the gearbox is transmitted to the framework 11, the framework 11 collides with the abutting block 221 of the first elastic piece 22 through the collision block 1111 on the breaking part 111, and compresses abutment block 221, abutment block 221 transmits the impact force to housing 21, abutment block 221 obtains abutment with housing 21, and abutment block 221 exerts an opposing force on impact block 1111, the strength of the broken part 111 of the framework 11 at the through hole 1112 is low, so that the framework 11 is broken at the through hole 1112, and the purpose of separating the gearbox from the auxiliary frame is achieved. The first elastic member 22 may be made of rubber, and can absorb collision energy when the pull rod structure is broken, so as to protect a driver or a passenger.

As shown in fig. 2, fig. 3 and fig. 4, as an embodiment, the inner wall of the through hole 1112 is recessed toward the first resilient member 22 to form a breaking groove 1113, and in case that the impact block 1111 impacts the abutting block 221, the pull rod assembly 1 is broken at the breaking groove 1113. In one embodiment, the breaking grooves 1113 are disposed on the side of the impact block 1111 away from the abutting block 221, and the number of the breaking grooves 1113 is two, and the breaking grooves 1113 are located on the two sides of the impact block 1111, so that the framework 11 can be broken at the breaking grooves 1113 more easily when the impact block 1111 impacts the abutting block 221.

Further, the pull rod structure further comprises a connecting rod 3 and a fastener 4, one end of the connecting rod 3 is abutted to the outer cover assembly 2, and the other end of the connecting rod 3 penetrates through the connecting sleeve 12 and is connected with the fastener 4. When the drawbar assembly 1 and the housing assembly 2 are assembled, one end of the connecting rod 3 passes through the connecting sleeve 12 and is connected with the fastener 4, so that the other end of the connecting rod 3 is abutted against the housing assembly 2, thereby connecting the drawbar assembly 1 with the housing assembly 2.

Furthermore, the breaking part 111 is also provided with a clamping groove 1114 communicated with the through hole 1112, and the fastener is clamped into the clamping groove 1114. The draw-in groove 1114 can block the fastener 4, prevent the fastener 4 from rotating along with the rotation connecting rod 3 to make things convenient for the assembly of the pull rod assembly 1 and the housing assembly 2, and improve the assembly efficiency.

As shown in fig. 1, a plurality of buffer slots 2211 are disposed at intervals on a side of the abutting block 221 facing the impact block 1111. A plurality of buffer slots 2211 arranged at intervals are arranged on the abutting block 221, so that when the impact block 1111 impacts the abutting block 221, a certain distance can be buffered, and the framework 11 can be ensured not to break when slightly vibrating.

Further, as shown in fig. 3, in order to realize multiple functions, the housing 21 is provided with an accommodating cavity 211 for accommodating the first elastic element 22, and one end of the first elastic element 22 away from the abutting block 221 is inserted into the accommodating cavity 211. In an embodiment, an end of the first elastic member 22 away from the abutting block 221 is inserted into the accommodating cavity 211, the connecting sleeve 12 passes through the first elastic member 22, and the first elastic member 22 isolates the connecting sleeve 12 from the housing 21, so that vibration of the transmission and the subframe connected with the connecting sleeve 12 can be effectively isolated.

In addition, as shown in fig. 6, in the above embodiment, the housing 21 further has a pressure-receiving portion 212, the first elastic element 22 is recessed to form a receiving groove 222, and the pressure-receiving portion 212 is inserted into the receiving groove 222 and abuts against one end of the abutting block 221 away from the striking block 1111. When one side of butt piece 221 receives the striking of striking piece 1111, the other side of butt piece 221 and pressure-bearing part 212 butt, when butt piece 221 reaches certain deformation, butt piece 221 receives the butt of pressure-bearing part 212 spacing, and butt piece 221 will exert reaction force to striking piece 1111 for the power that skeleton 11 received mainly acts on striking piece 1111, thereby makes skeleton 11 can break.

In an embodiment, please refer to fig. 4, the first elastic member 22 further has a spacer 223, the breaking portion 111 further has a contact block 1115 corresponding to the spacer 223, the contact block 1115 protrudes to a side close to the first elastic member 22 to form a boss (not shown), and the spacer 223 is provided with an anti-rotation slot 2231 for the boss to insert into. In an embodiment, the first elastic member 22 is located the same one side of butt joint block 221 and still is equipped with spacing block 223, and skeleton 11 is equipped with the contact block 1115 that corresponds with spacing block 223, and when the vehicle normally traveled, the power that skeleton 11 will receive transmitted to spacing block 223 through contact block 1115 for first elastic member 22 produces deformation, and first elastic member 22 adopts the rubber can cushion the material, thereby can absorb the vibration, thereby can guarantee vehicle interior personnel's travelling comfort. In addition, in order to prevent the connecting sleeve 12 from rotating and generating abnormal noise with the first elastic element 22, a boss and an anti-rotation groove 2231 are arranged on the contact block 1115 and the isolation block 223, and when the contact block 1115 rotates, the boss is inserted into the anti-rotation groove 2231, so as to drive the first elastic element 22 to rotate together.

Further, as shown in fig. 1 and fig. 6, the housing assembly 2 further includes a second elastic member 23, the second elastic member 23 is connected to an end of the housing 21 away from the first elastic member 22, and the connecting sleeve 12 passes through the second elastic member 23. In one embodiment, the connecting sleeve 12 passes through the second elastic member 23, one end of the connecting rod 3 abuts the second elastic member 23 between the end of the connecting rod 3 and the outer cover 21, and the second elastic member 23 and the first elastic member 22 isolate the framework 11 from the outer cover 21, so that vibration transmission between the transmission and the subframe can be isolated.

Further, a motor vehicle comprising a drawbar arrangement as described above. An automobile comprises all the advantages of the pull rod structure described above, and the description is omitted here.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A drawbar arrangement, comprising:

the pull rod assembly comprises a framework and a connecting sleeve which are connected with each other, the framework is used for being connected with a gearbox of a vehicle, one end, close to the connecting sleeve, of the framework is provided with a breaking part, the breaking part is provided with an impact block, and a through hole is formed in the position, close to the impact block, of the breaking part;

the connecting sleeve is sleeved inside the outer cover, a butting block arranged opposite to the impact block is formed on the first elastic piece, and the pull rod assembly is broken at the position of the through hole under the condition that the impact block impacts the butting block;

one end of the connecting rod is abutted to the outer cover assembly;

the other end of the connecting rod penetrates through the connecting sleeve and is connected with the fastener, the breaking part is further provided with a clamping groove communicated with the through hole, and the fastener is clamped into the clamping groove.

2. The tie rod structure of claim 1, wherein an inner wall of the through hole is recessed in a direction facing the first resilient member to form a fracture groove, and the tie rod assembly is broken at the position of the fracture groove in the case where the impact block impacts the abutment block.

3. The tie rod structure of claim 1, wherein a side of the abutment block facing the impact block is provided with a plurality of buffer grooves arranged at intervals.

4. The tie rod structure of claim 1, wherein the housing is provided with a receiving cavity for receiving the first resilient member, and an end of the first resilient member remote from the abutment block is inserted into the receiving cavity.

5. The tie bar structure of claim 1, wherein the housing further comprises a bearing portion, the first elastic member is recessed to form a receiving groove, and the bearing portion is inserted into the receiving groove and abuts against an end of the abutting block away from the striking block.

6. The tie bar structure of claim 1, wherein the first elastic member is further provided with a spacer block, the breaking portion is provided with a contact block corresponding to the spacer block, the contact block protrudes to a side close to the first elastic member to form a boss, and the spacer block is provided with an anti-rotation groove for inserting the boss.

7. The tie rod structure of any one of claims 1 to 6, wherein the housing assembly further comprises a second resilient member connected to an end of the housing remote from the first resilient member, the connecting sleeve passing through the second resilient member.

8. An automobile, characterized in that the automobile comprises a tie rod structure according to any one of claims 1 to 7.