CN216519350U - Lead screw shock absorber - Google Patents
Lead screw shock absorber Download PDFInfo
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- CN216519350U CN216519350U CN202123294309.0U CN202123294309U CN216519350U CN 216519350 U CN216519350 U CN 216519350U CN 202123294309 U CN202123294309 U CN 202123294309U CN 216519350 U CN216519350 U CN 216519350U
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Abstract
The utility model relates to the technical field of automobile shock absorption, and discloses a screw rod shock absorber, which comprises a spring and a screw rod damper; the screw rod damper consists of a ball screw, a steel pipe, a dust cover, a bearing, a first bracket and a second bracket; the ball screw consists of a screw, a steel ring and a steel ball; according to the screw rod shock absorber, when the spring is compressed or extended, the steel ball rolls between the steel ring and the spiral groove of the screw rod, and the steel ball makes spiral motion relative to the screw rod, so that the compression or extension speed of the spring is reduced, and the vibration of a vehicle body is reduced; the rolling friction and wear are small, the running state is stable and reliable, the service life is long, the problem of oil leakage does not exist, the risk of air leakage does not exist, the structure is simple, and the use cost is reduced.
Description
Technical Field
The utility model relates to the technical field of automobile shock absorption, in particular to a screw rod shock absorber.
Background
Shock absorbers are relatively important core parts in suspension systems in automobiles, and hydraulic shock absorbers and air shock absorbers are used mostly at present; the hydraulic damper has high requirement on the sealing performance, and the phenomena of poor sealing and oil leakage are easy to occur, so that the damping of the hydraulic damper fails; the air damper is high in cost, and the air pipe and the air bag made of plastic materials are easy to damage and leak air, so that the air damper fails in damping; therefore, the hydraulic shock absorber and the air shock absorber do not have a long life span.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a screw rod shock absorber; according to the screw rod shock absorber, when the spring is compressed or extended, the steel ball rolls between the steel ring and the spiral groove of the screw rod, and the steel ball makes spiral motion relative to the screw rod, so that the compression or extension speed of the spring is reduced, and the vibration of a vehicle body is reduced; the rolling friction wear is little, and operating condition is reliable and stable, and long service life does not have the problem of oil leak, does not have the risk of gas leakage, and the structure is simple again, has still reduced use cost.
The specific technical scheme of the utility model is as follows: a screw rod shock absorber comprises a spring and a screw rod damper.
The screw rod damper is composed of a ball screw rod, a steel pipe, a dust cover, a bearing, a first support and a second support.
The ball screw consists of a screw rod, a steel ring and steel balls.
The screw rod comprises first end, helicla flute, screw thread, second end, the helicla flute is at least one, and the helicla flute is the concave arc surface, first end does not have helicla flute and diameter and is not more than the tank bottom diameter of helicla flute, second end does not have helicla flute and diameter and is not less than the screw thread diameter, first end, second end are cylindrically.
The steel rings are circular, the outer surfaces of the steel rings are cylindrical surfaces, the inner surfaces of the steel rings are concave arc surfaces, at least one steel ring is arranged, and more than one steel ring is rigidly connected into a whole.
The total number of the steel balls is at least two.
The steel pipe is in a round pipe shape.
Wherein the lead screw damper is installed outside the spring.
Wherein, the structural relationship of ball screw is: the steel balls are arranged on the inner surface of the steel ring, the steel ring is led into the screw rod from the first end part of the screw rod, at least one steel ring is sleeved on the screw rod, and one steel ball is correspondingly arranged between the inner surface of each steel ring and each spiral groove of the screw rod.
Wherein, the structural relationship of lead screw attenuator is: one end of the steel pipe is sleeved on the outer ring of the bearing, and the outer ring of the bearing is rigidly connected with the steel pipe; the inner ring of the bearing is sleeved on the steel ring of the ball screw, and the inner ring of the bearing is rigidly connected with the steel ring; the first end of the screw is rigidly connected with the first bracket; one end of the dust cover is fixedly connected with the first support, and the other end of the dust cover is sleeved outside the steel pipe; the first support is fixedly connected with the frame, the other end of the steel pipe is rigidly connected with the second support, and the second support is fixedly connected with the lower cantilever of the automobile.
Preferably, the screw rod damper with the motor has the following structural relationship: one end of the steel pipe is sleeved on the steel ring of the ball screw, and the steel pipe is rigidly connected with the steel ring; the inner ring of the bearing is sleeved on the first end part of the screw rod, and the inner ring of the bearing is rigidly connected with the first end part of the screw rod; the first support is sleeved on the outer ring of the bearing, and the outer ring of the bearing is rigidly connected with the first support; the first end of the screw rod is connected with a rotating shaft of a motor through a shaft coupler, and the motor is fixed on the frame; one end of the dust cover is fixedly connected with the first support, and the other end of the dust cover is sleeved outside the steel pipe; the first support is fixedly connected with the frame, the other end of the steel pipe is rigidly connected with the second support, and the second support is fixedly connected with the lower cantilever of the automobile.
Preferably, the screw damper is installed inside the spring.
Preferably, a disc is rigidly fixed to the steel pipe of the screw damper, and the spring is mounted on the disc.
The concrete operation process of the screw rod shock absorber comprises the following steps:
when the spring is compressed, the screw rod moves towards the interior of the steel pipe, the steel balls roll between the steel ring and the spiral groove of the screw rod, and the steel balls are prevented from making linear motion by the screw teeth on the screw rod and make spiral motion relative to the screw rod, so that the speed of the screw rod moving towards the interior of the steel pipe is reduced, and the compression speed of the spring is reduced; when the spring extends, the screw rod moves away from the steel pipe, the steel balls roll between the steel ring and the spiral groove of the screw rod, and the screw teeth on the screw rod prevent the steel balls from making linear motion, so that the steel balls make spiral motion relative to the screw rod, the speed of the screw rod moving away from the steel pipe is reduced, and the extension speed of the spring is reduced.
The utility model has the beneficial effects that:
according to the screw rod shock absorber, the compression or extension speed of the spring is reduced, and the vibration of a vehicle body is reduced; the rolling friction wear is little, and operating condition is reliable and stable, and long service life does not have the problem of oil leak, does not have the risk of gas leakage, and the structure is simple again, has still reduced use cost.
Drawings
FIG. 1 is a schematic view of a lead screw damper according to the present invention;
FIG. 2 is a schematic structural view of a screw damper with a motor according to the present invention;
fig. 3 is an exploded view of the screw damper with motor of the present invention.
The reference signs are: the screw rod 1, a steel ring 2, a steel ball 3, a steel pipe 4, a dust cover 5, a first support 6, a second support 7, a bearing 8, a first end part 9, a second end part 10, a spiral groove 13, a screw thread 14, a motor 15, a shaft coupler 16, a first spiral groove 11 and a second spiral groove 12.
Detailed Description
The technology of the present invention will be further described with reference to the accompanying drawings and examples.
Example 1
As shown in fig. 1, a lead screw shock absorber includes a spring, a lead screw damper;
the screw rod damper consists of a ball screw, a steel pipe 4, a dust cover 5, a bearing 8, a first bracket 6 and a second bracket 7;
the ball screw consists of a screw 1, a steel ring 2 and a steel ball 3;
the screw rod consists of a first end part 9, a spiral groove 13, a screw thread 14 and a second end part 10, the spiral groove comprises a first spiral groove 11 and a second spiral groove 12, the spiral grooves are concave arc surfaces, the first end part does not have a spiral groove and has a diameter equal to the diameter of the groove bottom of the spiral groove, the second end part does not have a spiral groove and has a diameter equal to the diameter of the screw thread, and the first end part and the second end part are cylindrical;
the steel rings are annular, the outer surfaces of the steel rings are cylindrical surfaces, the inner surfaces of the steel rings are concave arc surfaces, the number of the steel rings is one, and more than one steel ring is rigidly connected into a whole;
the total number of the steel balls is two;
the steel pipe is in a round pipe shape;
wherein the lead screw damper is mounted outside the spring;
wherein, the structural relationship of ball screw is: the steel balls are loaded into the inner surface of the steel ring, the steel ring is led into the screw rod from the first end part of the screw rod, the screw rod is sleeved with the steel ring, and one steel ball is correspondingly installed between the inner surface of each steel ring and each spiral groove of the screw rod;
wherein, the structural relationship of lead screw attenuator is: one end of the steel pipe is sleeved on the outer ring of the bearing, and the outer ring of the bearing is rigidly connected with the steel pipe; the inner ring of the bearing is sleeved on the steel ring of the ball screw, and the inner ring of the bearing is rigidly connected with the steel ring; the first end of the screw is rigidly connected with the first bracket; one end of the dust cover is fixedly connected with the first support, and the other end of the dust cover is sleeved outside the steel pipe; the first support is fixedly connected with the frame, the other end of the steel pipe is rigidly connected with the second support, and the second support is fixedly connected with a lower cantilever of the automobile;
the concrete operation process of the screw rod shock absorber comprises the following steps:
when the spring is compressed, the steel ring starts to rotate, the screw rod moves towards the interior of the steel pipe, the steel balls roll between the steel ring and the spiral groove of the screw rod, and the steel balls are prevented from making linear motion by the screw threads on the screw rod and make spiral motion relative to the screw rod, so that the speed of the screw rod moving towards the interior of the steel pipe is reduced, and the compression speed of the spring is reduced; when the spring extends, the steel ring starts to rotate, the screw rod moves away from the steel pipe, the steel balls roll between the steel ring and the spiral groove of the screw rod, and the steel balls are prevented from moving linearly by the screw threads on the screw rod and move spirally relative to the screw rod, so that the movement speed of the screw rod away from the steel pipe is reduced, and the extension speed of the spring is reduced.
Example 2
As shown in fig. 2 and 3, a lead screw shock absorber includes a spring, a lead screw damper;
the screw rod damper consists of a ball screw, a steel pipe 4, a dust cover 5, a bearing 8, a first bracket 6 and a second bracket 7;
the ball screw consists of a screw 1, a steel ring 2 and a steel ball 3;
the screw rod consists of a first end part 9, a spiral groove 13, a screw thread 14 and a second end part 10, the spiral groove comprises a first spiral groove 11 and a second spiral groove 12, the spiral grooves are concave arc surfaces, the first end part does not have a spiral groove and has a diameter equal to the diameter of the groove bottom of the spiral groove, the second end part does not have a spiral groove and has a diameter equal to the diameter of the screw thread, and the first end part and the second end part are cylindrical;
the steel rings are annular, the outer surfaces of the steel rings are cylindrical surfaces, the inner surfaces of the steel rings are concave arc surfaces, the number of the steel rings is one, and more than one steel ring is rigidly connected into a whole;
the total number of the steel balls is two;
the steel pipe is in a round pipe shape;
wherein the lead screw damper is mounted outside the spring;
wherein, the structural relationship of ball screw is: the steel balls are loaded into the inner surface of the steel ring, the steel ring is led into the screw rod from the first end part of the screw rod, the screw rod is sleeved with the steel ring, and one steel ball is correspondingly installed between the inner surface of each steel ring and each spiral groove of the screw rod;
the structure relationship of the screw rod damper with the motor is as follows: one end of the steel pipe is sleeved on the steel ring of the ball screw, and the steel pipe is rigidly connected with the steel ring; the inner ring of the bearing is sleeved on the first end part of the screw rod, and the inner ring of the bearing is rigidly connected with the first end part of the screw rod; the first support is sleeved on the outer ring of the bearing, and the outer ring of the bearing is rigidly connected with the first support; the first end of the screw rod is connected with a rotating shaft of a motor 15 through a shaft coupler 16, and the motor is fixed on the frame; one end of the dust cover is fixedly connected with the first support, and the other end of the dust cover is sleeved outside the steel pipe; the first support is fixedly connected with the frame, the other end of the steel pipe is rigidly connected with the second support, and the second support is fixedly connected with a lower cantilever of the automobile;
the concrete operation process of the screw rod shock absorber comprises the following steps:
when the spring is compressed, the screw rod starts to rotate, the screw rod moves towards the interior of the steel pipe, the steel balls roll between the steel ring and the spiral groove of the screw rod, and the steel balls are prevented from making linear motion by the screw threads on the screw rod and make spiral motion relative to the screw rod, so that the speed of the screw rod moving towards the interior of the steel pipe is reduced, and the compression speed of the spring is reduced; when the spring extends, the screw rod starts to rotate, the screw rod moves away from the steel pipe, the steel balls roll between the steel ring and the spiral groove of the screw rod, and the steel balls are prevented from making linear motion by the screw threads on the screw rod and make spiral motion relative to the screw rod, so that the moving speed of the screw rod away from the steel pipe is reduced, and the extending speed of the spring is reduced; meanwhile, the rotating screw drives the rotor of the motor to rotate, and the motor outputs electric energy.
Example 3
Example 3 differs from example 1 in that:
the lead screw damper is installed inside the spring.
Example 4
Example 4 differs from example 1 in that:
a fixed disc is rigidly fixed on a steel pipe of the screw rod damper, and the spring is installed on the fixed disc.
Example 5
Example 5 differs from example 1 in that:
the number of the spiral grooves, the number of the steel rings, the number of the steel balls in each spiral groove and the total number of the steel balls are selected and matched according to the following table.
| Number of spiral grooves | Number of steel turns | Number of steel balls in each spiral groove | Total number of |
| 1 | 2 | 2 | 2 |
| 1 | 3 | 3 | 3 |
| 2 | 1 | 1 | 2 |
| 2 | 2 | 2 | 4 |
| 3 | 1 | 1 | 3 |
| 3 | 2 | 2 | 6 |
| n | m | m | n*m |
The raw materials and equipment used in the utility model are common raw materials and equipment in the field if not specified; the methods used in the present invention are conventional in the art unless otherwise specified.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and any simple modifications, alterations and equivalent changes made to the above embodiment according to the technical spirit of the present invention still belong to the protection scope of the technical solution of the present invention.
Claims (4)
1. The utility model provides a lead screw bumper shock absorber which characterized in that: comprises a spring and a screw rod damper;
the screw rod damper is composed of a ball screw rod, a steel pipe (4), a dust cover (5), a bearing (8), a first support (6) and a second support (7);
the ball screw consists of a screw rod (1), a steel ring (2) and a steel ball (3);
the screw rod consists of a first end part (9), a spiral groove (13), a screw tooth (14) and a second end part (10), wherein at least one spiral groove is formed, the spiral groove is a concave circular arc surface, the first end part does not have a spiral groove, the diameter of the first end part is not more than the diameter of the bottom of the spiral groove, the second end part does not have a spiral groove, the diameter of the second end part is not less than the diameter of the screw tooth, and the first end part and the second end part are cylindrical;
the steel rings are annular, the outer surfaces of the steel rings are cylindrical surfaces, the inner surfaces of the steel rings are concave arc surfaces, at least one steel ring is arranged, and more than one steel ring is rigidly connected into a whole;
the total number of the steel balls is at least two;
the steel pipe is in a round pipe shape;
wherein the lead screw damper is mounted outside the spring;
wherein, the structural relationship of ball screw is: the steel balls are loaded into the inner surface of the steel ring, the steel ring is led into the screw rod from the first end part of the screw rod, at least one steel ring is sleeved on the screw rod, and one steel ball is correspondingly installed between the inner surface of each steel ring and each spiral groove of the screw rod;
wherein, the structural relationship of lead screw attenuator is: one end of the steel pipe is sleeved on the outer ring of the bearing, and the outer ring of the bearing is rigidly connected with the steel pipe; the inner ring of the bearing is sleeved on the steel ring of the ball screw, and the inner ring of the bearing is rigidly connected with the steel ring; the first end of the screw is rigidly connected with the first bracket; one end of the dust cover is fixedly connected with the first support, and the other end of the dust cover is sleeved outside the steel pipe; the first support is fixedly connected with the frame, the other end of the steel pipe is rigidly connected with the second support, and the second support is fixedly connected with the lower cantilever of the automobile.
2. The lead screw shock absorber of claim 1, wherein the lead screw damper with motor has a structural relationship of: one end of the steel pipe is sleeved on the steel ring of the ball screw, and the steel pipe is rigidly connected with the steel ring; the inner ring of the bearing is sleeved on the first end part of the screw rod, and the inner ring of the bearing is rigidly connected with the first end part of the screw rod; the first support is sleeved on the outer ring of the bearing, and the outer ring of the bearing is rigidly connected with the first support; the first end of the screw rod is connected with a rotating shaft of a motor (15) through a shaft coupler (16), and the motor is fixed on the frame; one end of the dust cover is fixedly connected with the first support, and the other end of the dust cover is sleeved outside the steel pipe; the first support is fixedly connected with the frame, the other end of the steel pipe is rigidly connected with the second support, and the second support is fixedly connected with the lower cantilever of the automobile.
3. The lead screw shock absorber of claim 1, wherein said lead screw damper is mounted inside said spring.
4. The lead screw damper according to claim 1, wherein a disc is rigidly fixed to the steel tube of the lead screw damper, and the spring is mounted on the disc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123294309.0U CN216519350U (en) | 2021-12-26 | 2021-12-26 | Lead screw shock absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123294309.0U CN216519350U (en) | 2021-12-26 | 2021-12-26 | Lead screw shock absorber |
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| Publication Number | Publication Date |
|---|---|
| CN216519350U true CN216519350U (en) | 2022-05-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123294309.0U Active CN216519350U (en) | 2021-12-26 | 2021-12-26 | Lead screw shock absorber |
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|---|---|
| CN (1) | CN216519350U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115892292A (en) * | 2023-01-11 | 2023-04-04 | 武汉万曦智能科技有限公司 | Dynamic slope detection robot for motor vehicles in field |
-
2021
- 2021-12-26 CN CN202123294309.0U patent/CN216519350U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115892292A (en) * | 2023-01-11 | 2023-04-04 | 武汉万曦智能科技有限公司 | Dynamic slope detection robot for motor vehicles in field |
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Effective date of registration: 20230803 Address after: Group 5, Yuxianghuan Village, Fengshan Town, Luotian County, Huanggang, 438600, Hubei Province Patentee after: Jinyou (Hubei) Automation Equipment Co.,Ltd. Address before: 401333 17-7, building 2, 21 Xishuang Avenue, Shapingba District, Chongqing Patentee before: Chongqing constellation Automobile Technology Co.,Ltd. |