KR20120097144A - Automotive lift column - Google Patents

Automotive lift column Download PDF

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Publication number
KR20120097144A
KR20120097144A KR1020110016533A KR20110016533A KR20120097144A KR 20120097144 A KR20120097144 A KR 20120097144A KR 1020110016533 A KR1020110016533 A KR 1020110016533A KR 20110016533 A KR20110016533 A KR 20110016533A KR 20120097144 A KR20120097144 A KR 20120097144A
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KR
South Korea
Prior art keywords
column
bushing
bushings
pair
cover
Prior art date
Application number
KR1020110016533A
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Korean (ko)
Inventor
양희준
Original Assignee
주식회사 지엔에스모션
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Application filed by 주식회사 지엔에스모션 filed Critical 주식회사 지엔에스모션
Priority to KR1020110016533A priority Critical patent/KR20120097144A/en
Publication of KR20120097144A publication Critical patent/KR20120097144A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
    • B66F3/08—Devices, e.g. jacks, adapted for uninterrupted lifting of loads screw operated
    • B66F3/10—Devices, e.g. jacks, adapted for uninterrupted lifting of loads screw operated with telescopic sleeves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
    • F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
    • F16F15/08—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with rubber springs ; with springs made of rubber and metal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
    • B66F3/44—Devices, e.g. jacks, adapted for uninterrupted lifting of loads with self-contained electric driving motors

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Structural Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Vibration Prevention Devices (AREA)

Abstract

PURPOSE: An electric lift column is provided to prevent vibration by maintaining a space between columns at a predetermined interval by adding a pair of bushing in the inner and outer surfaces of a lower column, a middle column, and an upper column. CONSTITUTION: An electric lift column comprises a lower column(5), a middle column(11), an upper column(15), and a lift device. A lower plate(1) is installed at the bottom of the lower column and a lower cover(2) is installed at the top thereof. A lower bushing is installed in the upper inner circumference of the lower column. The middle column is installed to be moved into or out from the lower column. A first middle cover and a second middle cover(7) are respectively installed at the top and bottom of the middle column. A first middle bushing and a second middle bushing are respectively installed in the upper inner circumference and the lower outer circumference of the middle column. The upper column is installed to be moved into or out from the middle column. An upper cover and an upper plate(14) are respectively installed at the bottom and the top of the upper column and an upper bushing is installed at the bottom thereof. The lifting device is installed inside the lower column to lift on the lower column with the middle column as a telescopic type.

Description

Motorized lift column

The present invention relates to an electric lift column for adjusting the height of a mechanical device, and more particularly, the outer surface and the inner and outer sides of the upper column in the electric lift column of No. 10-1006695 registered and patented by the present applicant. By additionally installing side bushings on the inner side of the side and the lower column, respectively, the present invention relates to an electric lift column capable of firmly supporting not only lightweight machinery but also heavy machinery such as vibrations when being raised and lowered.

[Document 1] Patent Registration No. 10-1006695, Dec. 31, 2010

In general, a vibratory lift column is a device for adjusting the height of a mechanical device. The electric lift column has a variety of forms, the most commonly used form of which is formed in a rectangular cross section.

It is a rectangular lower column provided with a lower plate, a rectangular intermediate column that is raised and lowered on the inside of the lower column, a rectangular upper column which is raised and lowered inside the intermediate column and provided with an upper plate, and wins the upper column. It consists of lifting means for lowering.

The lower bushing is installed on the upper inner circumferential surface of the lower column, the first middle bushing and the second middle bushing are respectively installed on the lower outer circumferential surface and the upper inner circumferential surface of the middle column, and the upper bushing is installed on the lower outer circumferential surface of the upper column. A lower cover is installed at an upper end of the first column, and a first middle cover and a second middle cover are respectively installed at the lower end and the upper end of the intermediate column.

Therefore, when the elevating means is operated, the upper column is raised and lowered by a telescopic type along with the intermediate column on the lower column, thereby automatically adjusting the height of the mechanical device.

However, the conventional electric lift column has generated a lot of vibration between the lower column and the middle column, the middle column and the upper column during the lifting operation.

This is because the lower bushing, the first intermediate bushing, the second intermediate bushing, the upper bushing, etc., which support the upper column and the intermediate column to be vertically raised and lowered, do not perform their original functions properly.

Therefore, in the conventional electric lift column, the lower column and the middle column cannot be vertically raised and lowered during operation, causing a lot of vibrations, and the vibration is deteriorated due to the above-mentioned vibration. I had to have.

In order to solve this problem, the lower recess is formed inside each square corner portion of the lower column by the present application, and the lower bushing is configured in pairs and installed on both sides of the lower recess, respectively; On the outside and inside of each rectangular corner of the intermediate column, a first protrusion and a second protrusion are respectively inserted between the lower bushings, and the first intermediate bushing is formed in a pair so as to be provided on both outer sides of the first protrusion. The second intermediate bushings are provided in pairs and are respectively installed on both outer sides of the second protrusions; On the outside of each rectangular corner portion of the upper column is formed an upper recess portion into which the second intermediate bushing is inserted, and the upper bushing is composed of a pair so that the electric lift column of Document 1 installed on both sides of the upper recess portion is patented. Registered.

As a result, the clearance between the lower column and the intermediate column, the intermediate column and the upper column is eliminated, so that the upper column and the intermediate column can be lowered on the lower column with minimal vibration.

However, the electric lift column of the above-mentioned document 1 supports a stable feeling when a light weight mechanical device is raised and lowered, but has a disadvantage in that stability is lowered due to vibration or the like when a heavy mechanical device is lifted and lowered.

This is because the number and installation positions of the bushings above cannot support the weight load. That is, for example, when the load of a mechanical device is concentrated on one side, the bearings are subjected to compressive deformation only because they support the load only partially according to the installation position. Otherwise, the bushings that do not have compression deformation do not occur. Since the distance between the lower column and the middle column, the distance between the middle column and the upper column is not constant, vibration occurs.

The present invention has been invented to solve the above problems, the lower plate is installed at the bottom, the lower cover is installed on the top, and the rectangular lower column is installed on the upper inner peripheral surface; Receivable and installed inside the lower column, the first middle cover and the second middle cover is installed on the bottom and top, respectively, the rectangular shape of the first intermediate bushing and the second middle bushing is installed on the outer peripheral surface and the upper inner peripheral surface, respectively Intermediate column; A rectangular upper column installed on the inside of the intermediate column to be accessible, an upper cover and an upper plate respectively installed at a lower end and an upper end thereof, and an upper bushing installed at a lower end thereof; In the interior of the lower column is provided with an elevating means for raising and lowering the upper column vertically to raise and lower in a telescopic (telescopic) type with the intermediate column on the lower column,

Lower recesses of a predetermined space are formed in the inner corners of the lower column, respectively, and the lower bushings are configured in pairs and installed on both sides of the lower recess, respectively, and a pair of first pairs are formed on each inner surface of the lower column. Side bushings are installed at regular intervals;

First protrusions are respectively formed at the outer corners of the middle column to be inserted into the lower recesses, and the first intermediate bushings are formed in pairs and are installed at both sides of the first protrusions, respectively. A pair of second side bushings are installed at regular intervals, and intermediate recesses of a predetermined space are formed inside the square corners of the intermediate column, and the second intermediate bushings are constituted by a pair, respectively on both sides of the intermediate recesses. A pair of first side bushings are provided on each inner side surface of the intermediate column at regular intervals;

Second projections are formed on the outer sides of the corners of the upper column, respectively, and the upper bushings are configured in pairs, respectively, on both sides of the second projections, and a pair of second side bushings on each outer surface of the upper column. An electric lift column is provided which is installed at regular intervals.

The present invention by adding a pair of bushings to each of the inner and outer sides of the lower column, middle column, upper column to prevent vibration of the electric lift column to maintain a constant distance between the columns to prevent the occurrence of vibration, etc. By preventing the compression deformation there is an effect that can be firmly supported when lifting or lowering not only the lightweight machinery but also the heavy machinery.

1 is a three-dimensional view of the present invention.
2 is a schematic installation cross-sectional view of the bushing disposed at the corner of the column of the present invention.
3 is a schematic installation cross-sectional view of the side bushing of the present invention.
4 is a horizontal cross-sectional view of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

In the electric lift column 100 of the present invention, a lower plate 1 is installed at a lower end, a lower cover 2 is installed at an upper end, and a rectangular lower column 5 having a lower bushing 3 installed at an upper inner circumferential surface thereof. ; The first column cover 6 and the second middle cover 7 are installed at the lower and upper ends of the lower column 5, respectively, and the first middle bushings are respectively provided at the lower outer circumferential surface and the upper inner circumferential surface. (8) and the rectangular intermediate column 11 provided with the 2nd intermediate bushing 10; The upper column 13 and the upper plate 14 are installed on the inner side of the middle column 11, the upper cover 13 and the upper plate 14 are installed at the lower end and the upper end, respectively. )and; An elevating means 16 installed inside the lower column 5 to elevate the upper column 15 vertically so that the lower column 5 can be elevated on the lower column 5 together with the intermediate column 11 in a telescopic type. ), The lower recess portion 17 of a predetermined space is formed inside the square corner of the lower column 5, and the lower bushing 3 is formed in a pair of lower recess portion 17 Respectively installed on both sides, and a pair of first side bushings 4a are respectively installed at respective intervals on each inner surface of the lower column 5; The first protrusions 18 are inserted into the lower recesses 17, respectively, on the outer side of the square corners of the intermediate column 11, and the first intermediate bushings 8 are constituted by a pair of first protrusions 18. Are respectively installed on both sides of the intermediate column, and a pair of second side bushings 9a are installed on each outer side surface of the intermediate column 11 at regular intervals, and each of the predetermined spaces inside the square corner of the intermediate column 11. The intermediate recess 20 is formed, and the second intermediate bushing 10 is configured in pairs and installed on both sides of the intermediate recess 20, respectively, and on each inner side of the intermediate column 11. A pair of first side bushings 4b are provided at regular intervals; The second protrusions 19 are formed on the outside of the square corners of the upper column 15, respectively, and the upper bushings 12 are configured in pairs and are installed on both sides of the second protrusions 19, respectively. A pair of second side bushings 9b are provided on each outer surface of the section 15 at regular intervals.

The elevating means (16) includes an electric motor (21) for providing power; A screw 22 rotated by the rotational force of the electric motor 21; A nut 24 built in the screw 22 and being lowered in the casing 23 by the rotation of the screw 22; A lowering hole 25 installed integrally with the nut 24 and the upper column 15 to be lowered on the casing 23; .

The electric lift column 100 of the present invention configured as described above is to adjust the height of various mechanical devices such as work tables, machine tools, construction machines, medical devices, solar power plants, and the like, as shown in FIG. In (5), the upper column 15 and the intermediate column 11 are devices which are lifted up and down by a telescopic type by the elevating means 16.

In particular, the electric lift column 100 of the present invention by maintaining a constant interval between the lower column 5 and the intermediate column 11, the intermediate column 11 and the upper column 15, the machine lightweight and without causing vibration It is characterized by being able to firmly support not only the device but also the lifting and lowering of heavy machinery.

2 to 4, the lower recess 17, the intermediate recess 20, and the first protrusion 18 of the lower column 5, the middle column 11, and the upper column 15 are illustrated. And the bushings are provided on the inner and outer surfaces of the second protrusion 19 and the electric lift column 100.

The above-mentioned characteristics are achieved by the lower bushing 3 and the first side bushing 4a installed in the lower column 5, the first intermediate bushing 8 and the second side bushing installed below the intermediate column 11. Explained through the interaction of (9a) as follows.

That is, when the intermediate column 11 is raised or lowered inside the lower column 5 in a state where the weight mechanism is fixed on the upper plate 14 of the upper column 15, the lower bushing 3 is The first intermediate bushing 8 is supported in both directions of the first protrusion 18 of the intermediate column 11, and the first intermediate bushing 8 is supported in both directions of the lower recess 17 of the lower column 5.

The first side bushing 4a is supported in a direction orthogonal to each outer surface of the intermediate column 11, and the second side bushing 9a is supported in a direction orthogonal to each outer surface of the lower column 5. .

In other words, the lower bushing 3 and the first side bushing 4a support the intermediate column 11, and the first intermediate bushing 8 and the second side bushing 9a support the lower column 5 in a complex direction. do. Therefore, the intermediate column 11 can be raised or lowered in a stable manner without causing vibration.

Accordingly, only the lower bushing 3 and the first intermediate bushing 8 are conventionally installed to support the lower column 5 and the intermediate column 11 in a biased direction, thereby lowering the bushing 3 or the first intermediate bushing 8. Not only completely solves the conventional problem that caused the extreme compression deformation at the), but also firmly supports the lifting and lowering of the machine of the weight installed on the upper plate 14.

This is the second intermediate bushing 10 and the first side bushing 4b installed on the middle column 11 of the electric lift column 100, the upper bushing 12 and the second side bushing (installed on the upper column 15). The same applies to 9b).

Therefore, even when the upper column 15 is raised or lowered in the middle column 11, it is possible to raise or lower with stability without causing vibration.

Thus, the electric lift column 100 of the present invention effectively prevents the compression deformation of the bushing and the vibration of the electric lift column 100 by a bushing structure supported in a complex direction. It can be firmly supported even when climbing.

1: lower plate 2: lower cover
3: lower bushing 4a, 4b: first side bushing
5: lower column 6: first intermediate cover
7: 2nd intermediate cover 8: 1st intermediate bushing
9a, 9b: second side bushing 10: second intermediate bushing
11: middle column 12: upper bushing
13: top cover 14: top plate
15: upper column 16: lifting means
17: lower recessed part 18: first protrusion
19: second protrusion 20: middle essential
21: electric motor 22: screw
23: casing 24: nut
25: raising and lowering hole 100: electric lift column

Claims (1)

A lower plate 5 installed at a lower end, a lower cover 2 at an upper end thereof, and a rectangular lower column 5 having a lower bushing 3 installed at an upper inner circumferential surface thereof; The first column cover 6 and the second middle cover 7 are installed at the lower and upper ends of the lower column 5, respectively, and the first middle bushings are respectively provided at the lower outer circumferential surface and the upper inner circumferential surface. (8) and the rectangular intermediate column 11 provided with the 2nd intermediate bushing 10; The upper column 13 and the upper plate 14 are installed on the inner side of the middle column 11, the upper cover 13 and the upper plate 14 are installed at the lower end and the upper end, respectively. )and; An elevating means 16 installed inside the lower column 5 to elevate the upper column 15 vertically so that the lower column 5 can be elevated on the lower column 5 together with the intermediate column 11 in a telescopic type. ), The lower recess portion 17 of a predetermined space is formed inside the square corner of the lower column 5, and the lower bushing 3 is formed in a pair of lower recess portion 17 Respectively installed on both sides, and a pair of first side bushings 4a are respectively installed at respective intervals on each inner surface of the lower column 5; The first protrusions 18 are inserted into the lower recesses 17, respectively, on the outer side of the square corners of the intermediate column 11, and the first intermediate bushings 8 are constituted by a pair of first protrusions 18. Are respectively installed on both sides of the intermediate column, and a pair of second side bushings 9a are installed on each outer side surface of the intermediate column 11 at regular intervals, and each of the predetermined spaces inside the square corner of the intermediate column 11. The intermediate recess 20 is formed, and the second intermediate bushing 10 is configured in pairs and installed on both sides of the intermediate recess 20, respectively, and on each inner side of the intermediate column 11. A pair of first side bushings 4b are provided at regular intervals; The second protrusions 19 are formed on the outside of the square corners of the upper column 15, respectively, and the upper bushings 12 are configured in pairs and are installed on both sides of the second protrusions 19, respectively. An electric lift column characterized in that a pair of second side bushings (9b) are provided at predetermined intervals on each outer surface of the part (15).
KR1020110016533A 2011-02-24 2011-02-24 Automotive lift column KR20120097144A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020110016533A KR20120097144A (en) 2011-02-24 2011-02-24 Automotive lift column

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020110016533A KR20120097144A (en) 2011-02-24 2011-02-24 Automotive lift column

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KR20120097144A true KR20120097144A (en) 2012-09-03

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101423942B1 (en) * 2013-11-28 2014-08-01 이정기 The electromotion lift
KR101437841B1 (en) * 2014-03-27 2014-09-04 (주)에이스정밀 telescopic loader
CN106335860A (en) * 2016-09-20 2017-01-18 浙江捷昌线性驱动科技股份有限公司 Dual motor lifting stand column
KR101974639B1 (en) * 2018-07-03 2019-05-02 (주)신우 프론티어 Multi-stage screw-driven lifting device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101423942B1 (en) * 2013-11-28 2014-08-01 이정기 The electromotion lift
KR101437841B1 (en) * 2014-03-27 2014-09-04 (주)에이스정밀 telescopic loader
CN106335860A (en) * 2016-09-20 2017-01-18 浙江捷昌线性驱动科技股份有限公司 Dual motor lifting stand column
KR101974639B1 (en) * 2018-07-03 2019-05-02 (주)신우 프론티어 Multi-stage screw-driven lifting device

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E601 Decision to refuse application