CN210423538U - Torsion bar spring, suspension system and automobile - Google Patents

Torsion bar spring, suspension system and automobile Download PDF

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Publication number
CN210423538U
CN210423538U CN201921467229.0U CN201921467229U CN210423538U CN 210423538 U CN210423538 U CN 210423538U CN 201921467229 U CN201921467229 U CN 201921467229U CN 210423538 U CN210423538 U CN 210423538U
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torsion bar
suspension system
rigidity
cross arm
bar part
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CN201921467229.0U
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史玉红
毕兰平
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Zhejiang PanGood Power Technology Co Ltd
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Zhejiang PanGood Power Technology Co Ltd
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Abstract

The utility model discloses a torsion bar spring, a suspension system and an automobile, wherein the torsion bar spring is used for the suspension system and comprises a low-rigidity torsion bar and a high-rigidity torsion bar; the high-rigidity torsion bar comprises a first torsion bar part and a second torsion bar part, a tooth socket is formed in the first end of the first torsion bar part, teeth are arranged at the first end of the second torsion bar part, and the teeth are arranged in the tooth socket; the first torsion bar part and the second torsion bar part are hollow bars, the low-rigidity torsion bar is arranged in the first torsion bar part and the second torsion bar part, and two ends of the low-rigidity torsion bar are fixedly connected with the second end of the first torsion bar part and the second end of the second torsion bar part respectively; the first end of the torsion bar spring is fixed with the first side of the lower cross arm of the suspension system, and the second end of the torsion bar spring is rotatably connected to the vehicle body. When the torsion bar is used, firstly, the low-rigidity torsion bar deforms, and the riding comfort is good; when the low-rigidity torsion bar is twisted and deformed to a certain degree, the teeth of the second torsion bar part are abutted to the groove wall of the tooth groove of the first torsion bar part, the rigidity of the whole suspension system is increased, and the side-tipping stability is improved.

Description

Torsion bar spring, suspension system and automobile
Technical Field
The utility model belongs to the technical field of the automobile parts technique and specifically relates to a torsion bar spring, suspension system and car are related to.
Background
Currently, a double wishbone suspension is one of the most advantageous suspension forms for improving the handling stability and smoothness of an automobile. To improve comfort, the springs of the suspension system are generally designed to be softer, however, a soft spring can lead to poor roll stability of the vehicle.
Therefore, how to solve the contradiction between the comfort and the roll stability of the suspension system is a technical problem to be solved urgently by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
In view of the above, it is a first object of the present invention to provide a torsion bar spring to solve the contradiction between the comfort and roll stability of a suspension system.
A second object of the present invention is to provide a suspension system.
A third object of the present invention is to provide a vehicle.
In order to achieve the first object, the present invention provides the following solutions:
a torsion bar spring for a suspension system includes a low stiffness torsion bar and a high stiffness torsion bar;
the high-rigidity torsion bar comprises a first torsion bar part and a second torsion bar part, a tooth socket is formed at the first end of the first torsion bar part, teeth are arranged at the first end of the second torsion bar part, and the teeth are arranged in the tooth socket and can slide in the tooth socket, so that the first torsion bar part and the second torsion bar part are twisted with each other;
the first torsion bar part and the second torsion bar part are hollow bars, the low-rigidity torsion bar is arranged in the first torsion bar part and the second torsion bar part, and two ends of the low-rigidity torsion bar are fixedly connected with the second end of the first torsion bar part and the second end of the second torsion bar part respectively;
the first end of the torsion bar spring is fixed with the first side of the lower cross arm of the suspension system, and the second end of the torsion bar spring is rotatably connected to the vehicle body.
In a specific embodiment, the number of the tooth sockets is multiple, and the tooth sockets are uniformly distributed at the first end of the first torsion rod part;
the teeth and the tooth sockets are arranged in a one-to-one correspondence mode.
In another specific embodiment, the torsion bar spring passes through the second side of the lower cross arm and is rotatable relative to the second side of the lower cross arm.
In another specific embodiment, the torsion bar spring is hinged to the lower cross arm through a bushing.
In another specific embodiment, both ends of the low-rigidity torsion bar are respectively in spline press-fit connection with the second end of the first torsion bar part and the second end of the second torsion bar part.
In another specific embodiment, the torsion bar spring is rotatably coupled to the body via a bearing.
According to the utility model discloses an each embodiment can make up as required wantonly, and the embodiment that obtains after these combinations is also in the utility model discloses the scope is the utility model discloses a part of the concrete implementation mode.
According to the above technical scheme, the utility model provides a torsion bar spring, during the use, fixed with torsion bar spring's first end and suspension system's lower xarm's first side, torsion bar spring's second end swivelling joint is on the automobile body. When the suspension system jumps, firstly, the low-rigidity torsion bar deforms, and the riding comfort is good because the low-rigidity torsion bar has low rigidity; when the low-rigidity torsion bar is twisted and deformed to a certain degree, the teeth of the second torsion bar part are abutted to the groove wall of the tooth groove of the first torsion bar part, at the moment, the rigidity of the torsion bar spring is the sum of the high-rigidity torsion bar and the low-rigidity torsion bar, the rigidity of the whole suspension system is increased, and the side-tipping stability is improved. Namely, the utility model provides a comfort and the stability of heeling of suspension system's contradiction.
In order to achieve the second objective, the present invention provides the following solutions:
a suspension system comprising a torsion bar spring as claimed in any preceding claim.
In a particular embodiment, the suspension system further comprises an upper cross arm, a lower cross arm, and a wheel carriage;
the uniform ends of the upper cross arm and the lower cross arm are hinged on the wheel towing bracket;
the other end of the upper cross arm is hinged with the vehicle body;
the lower cross arm is arranged below the upper cross arm.
In another specific embodiment, the upper cross arm is hinged to the vehicle body by a rubber bushing.
According to the utility model discloses an each embodiment can make up as required wantonly, and the embodiment that obtains after these combinations is also in the utility model discloses the scope is the utility model discloses a part of the concrete implementation mode.
Because the utility model discloses a suspension system includes above-mentioned torsion bar spring, consequently, the beneficial effect that torsion bar spring has all is the utility model discloses a suspension system contains.
In order to achieve the third objective, the present invention provides the following solutions:
an automobile comprising a suspension system as claimed in any preceding claim.
Because the utility model discloses an automobile includes above-mentioned suspension system, consequently, the beneficial effect that suspension system had all is the utility model discloses an automobile contains.
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 drawings without any novelty.
Fig. 1 is a schematic cross-sectional structural view of a torsion bar spring according to the present invention;
FIG. 2 is a schematic sectional view A-A of FIG. 1;
fig. 3 is a schematic front view of a suspension system according to the present invention;
fig. 4 is a schematic bottom view of the suspension system according to the present invention.
Wherein, in fig. 1-4:
low rigidity torsion bar 1, high rigidity torsion bar 2, first torsion bar portion 201, second torsion bar portion 202, alveolus 2011, tooth 2021, lower xarm 3, last horizontal arm 4, wheel bracket 5.
Detailed Description
In order to make the technical solution of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to fig. 1 to 4 and the detailed description.
The utility model discloses a torsion bar spring for on the suspension system. The torsion bar spring comprises a low-rigidity torsion bar 1 and a high-rigidity torsion bar 2, and the rigidity of the high-rigidity torsion bar 2 is higher than that of the low-rigidity torsion bar 1.
The high-rigidity torsion bar 2 comprises a first torsion bar part 201 and a second torsion bar part 202, a tooth socket 2011 is formed at the first end of the first torsion bar part 201, a tooth 2021 is arranged at the first end of the second torsion bar part 202, the tooth 2021 is arranged in the tooth socket 2011 and can slide in the tooth socket 2011, so that the first torsion bar part 201 and the second torsion bar part 202 are twisted with each other. Specifically, the length of the socket 2011 is greater than the length of the tooth 2021, and in the initial state, the tooth 2021 is located at the middle of the socket 2011.
The first torsion bar portion 201 and the second torsion bar portion 202 are both hollow bars, the low-rigidity torsion bar 1 is arranged in the first torsion bar portion 201 and the second torsion bar portion 202, and two ends of the low-rigidity torsion bar 1 are fixedly connected with the second end of the first torsion bar portion 201 and the second end of the second torsion bar portion 202 respectively.
A first end of the torsion bar spring (i.e., a second end of the second torsion bar portion 202) is fixed to a first side of the lower cross arm 3 of the suspension system, and a second end of the torsion bar spring (i.e., a second end of the first torsion bar portion 201) is rotatably connected to the vehicle body.
The utility model provides a torsion bar spring, during the use, fixed with torsion bar spring's first end and suspension system's lower xarm 3's first side, but torsion bar spring's second end swivelling joint is on the automobile body. When the suspension system jumps, firstly, the low-rigidity torsion bar 1 deforms, and the riding comfort is good because the rigidity of the low-rigidity torsion bar 1 is small; when the low-stiffness torsion bar 1 is torsionally deformed to a certain degree, the teeth 2021 of the second torsion bar part 202 abut against the groove wall of the tooth groove 2011 of the first torsion bar part 201, at this time, the stiffness of the torsion bar spring is the sum of the high-stiffness torsion bar 2 and the low-stiffness torsion bar 1, the stiffness of the whole suspension system is increased, and the roll stability is improved. Namely, the utility model provides a comfort and the stability of heeling of suspension system's contradiction.
Example two
In another embodiment of the present invention, the torsion bar spring in this embodiment is similar to the torsion bar spring in the first embodiment, and the description of the same parts is omitted, and only the differences will be described.
In this embodiment, the utility model discloses a number of alveolus 2011 specifically is a plurality of, and the equipartition is in the first end of first torsion bar portion 201, and tooth 2021 sets up with alveolus 2011 one-to-one. Specifically, the socket 2011 and the tooth 2021 are both fan-shaped. Other shapes are also possible.
Further, the utility model discloses a torsion bar spring passes the second side of lower xarm 3, and can rotate for the second side of lower xarm 3, and the second side of lower xarm 3 provides the holding power for torsion bar spring promptly. The lower cross arm 3 is a U-shaped cross rod, and the torsion bar spring sequentially penetrates through two sides of the U-shaped cross rod.
Further, the utility model discloses a torsion bar spring passes through the bush and articulates on xarm 3 down, specifically, the bush is rubber bush, further improves suspension system's stability.
Further, the utility model discloses a both ends of low rigidity torsion bar 1 respectively with the second end of first torsion bar portion 201 and the second end spline pressure equipment connection of second torsion bar portion 202. The low-rigidity torsion bar 1 and the high-strength torsion bar may be connected by other connection methods such as welding.
Further, the utility model discloses a torsion bar spring passes through the rotatable connection of bearing on the automobile body.
The utility model discloses a with low rigidity torsion bar 1 and the combination of high rigidity torsion bar 2, realized torsion bar spring's variable rigidity, on the basis of guaranteeing to take the travelling comfort, improved the rigidity of heeling.
EXAMPLE III
The present invention provides a suspension system comprising a torsion bar spring as described in any one of the above embodiments.
Further, the utility model discloses a suspension system still includes xarm 4, xarm 3 and wheel bracket 5 down, and 3 homogeneous ends of upper beam 4 and xarm are articulated on wheel bracket 5 down, and upper beam 4 and xarm 3 are the U-shaped xarm down.
The other end of the upper cross arm 4 is hinged with the vehicle body, and the lower cross arm 3 is arranged below the upper cross arm 4.
Further, the utility model discloses an upper cross arm 4 passes through rubber bush and articulates on the automobile body, has improved anti-seismic performance.
Because the utility model discloses a suspension system includes above-mentioned torsion bar spring, consequently, the beneficial effect that torsion bar spring has all is the utility model discloses a suspension system contains.
Example four
The utility model provides an automobile, including the suspension system as in the above-mentioned embodiment.
Because the utility model discloses an automobile includes above-mentioned suspension system, consequently, the beneficial effect that suspension system had all is the utility model discloses an automobile contains.
In the present invention, "first", "second", etc. are all distinguished in description, and have no other special meaning.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. A torsion bar spring for a suspension system, comprising a low stiffness torsion bar (1) and a high stiffness torsion bar (2);
the high-rigidity torsion bar (2) comprises a first torsion bar part (201) and a second torsion bar part (202), a tooth socket (2011) is formed at the first end of the first torsion bar part (201), a tooth (2021) is arranged at the first end of the second torsion bar part (202), the tooth (2021) is placed in the tooth socket (2011) and can slide in the tooth socket (2011), and therefore the first torsion bar part (201) and the second torsion bar part (202) are twisted with each other;
the first torsion bar part (201) and the second torsion bar part (202) are hollow bars, the low-rigidity torsion bar (1) is arranged in the first torsion bar part (201) and the second torsion bar part (202), and two ends of the low-rigidity torsion bar (1) are fixedly connected with a second end of the first torsion bar part (201) and a second end of the second torsion bar part (202) respectively;
the first end of the torsion bar spring is fixed with the first side of a lower cross arm (3) of the suspension system, and the second end of the torsion bar spring is rotatably connected to the vehicle body.
2. The torsion bar spring according to claim 1, wherein the number of the thread grooves (2011) is plural and is uniformly distributed at the first end of the first torsion bar portion (201);
the teeth (2021) and the alveolus (2011) are arranged in one-to-one correspondence.
3. The torsion bar spring according to claim 2, wherein said torsion bar spring passes through a second side of said lower cross arm (3) and is rotatable with respect to said second side of said lower cross arm (3).
4. The torsion bar spring according to claim 2, wherein said torsion bar spring is hinged on said lower cross arm (3) by means of a bushing.
5. The torsion bar spring according to claim 1, wherein both ends of the low stiffness torsion bar (1) are spline press-fitted with the second end of the first torsion bar portion (201) and the second end of the second torsion bar portion (202), respectively.
6. A torsion bar spring according to claim 5, wherein said torsion bar spring is rotatably attached to said body via bearings.
7. A suspension system comprising a torsion bar spring according to any one of claims 1 to 6.
8. The suspension system according to claim 7, further comprising an upper cross arm (4), a lower cross arm (3), and a wheel carrier (5);
the upper cross arm (4) and the lower cross arm (3) are hinged to the wheel towing bracket (5) at one end;
the other end of the upper cross arm (4) is hinged with the vehicle body;
the lower cross arm (3) is arranged below the upper cross arm (4).
9. Suspension system according to claim 8, characterized in that the upper cross arm (4) is hinged on the body by means of a rubber bushing.
10. An automobile, characterized by comprising a suspension system according to any one of claims 7-9.
CN201921467229.0U 2019-09-04 2019-09-04 Torsion bar spring, suspension system and automobile Active CN210423538U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921467229.0U CN210423538U (en) 2019-09-04 2019-09-04 Torsion bar spring, suspension system and automobile

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921467229.0U CN210423538U (en) 2019-09-04 2019-09-04 Torsion bar spring, suspension system and automobile

Publications (1)

Publication Number Publication Date
CN210423538U true CN210423538U (en) 2020-04-28

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110425240A (en) * 2019-09-04 2019-11-08 浙江盘毂动力科技有限公司 A kind of torsion-bar spring, suspension system and automobile
CN116176721A (en) * 2023-04-25 2023-05-30 哈尔滨工业大学(深圳)(哈尔滨工业大学深圳科技创新研究院) Continuous jumping robot with adjustable jumping track

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110425240A (en) * 2019-09-04 2019-11-08 浙江盘毂动力科技有限公司 A kind of torsion-bar spring, suspension system and automobile
CN116176721A (en) * 2023-04-25 2023-05-30 哈尔滨工业大学(深圳)(哈尔滨工业大学深圳科技创新研究院) Continuous jumping robot with adjustable jumping track
CN116176721B (en) * 2023-04-25 2023-07-18 哈尔滨工业大学(深圳)(哈尔滨工业大学深圳科技创新研究院) Continuous jumping robot with adjustable jumping track

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