A large displacement constant force spring hanger

Abstract

The present invention relates to a large displacement constant force spring hanger. The present invention uses the characteristics of the rotation of the rotating plate and the characteristics that the hypotenuse is greater than the right-angle side when the triangular rotating plate rotates, through the arrangement of a rhombus conversion block, an inclined plate and a triangular rotating plate structure and a transmission structure, so that the transmission structure of the present invention can ensure vertical displacement under the condition of a relatively low longitudinal transmission distance, improve the compactness of the hanger structure, reduce the requirements for spring accuracy, and ensure that the spring hanger of the present invention has good output performance and good practical performance.

Description

Technical Field

[0001] The present invention relates to a large displacement constant force spring hanger, which can be applied to fields such as boilers, electric power, chemical industry, petrochemical industry, papermaking, etc. that need to bear a certain load and vertical displacement (preferably greater than 350mm), and can be a suspended pipeline or equipment. Background Art

[0002] Defects of existing products: 1) The rotating plates of existing products are arranged in the "first and third" quadrants or the "second and fourth" quadrants. Repeated operation will cause the upper pressure plate and spring to twist, thereby reducing the output characteristics of the product; 2) Once the vertical displacement of the existing product exceeds 350, the designed spring stiffness is very large, the deformation is also large, and the spring becomes very high, which increases the difficulty of spring manufacturing; 3) The rotating plate of the existing product and the upper pressure plate adopt a contact horizontal downward pressure structure. At the same time, in order to be a spring connection, a tension spring frame is used to convert the tension of two inputs (the "first and third" quadrants or the "second and fourth" quadrants) into one output tension. This part of the mechanism will increase the overall dimensions of the product in the installation direction, and often affects the installation on site due to being too long. Summary of the invention

[0003] In view of the above-mentioned defects, the present invention aims to provide a large-displacement constant-force spring hanger with reasonable structure and good vertical displacement output performance.

[0004] To this end, the technical solution adopted by the present invention is: a large displacement constant force spring hanger, comprising a panel (12), a hanging piece (1) connected to a load is arranged at the lower part of the panel (12), a load pull rod (2) is connected to the upper part of the hanging piece (1), and a quadrilateral conversion block (5) is connected to the upper part of the load pull rod (2); the lower part of the conversion block (5) is hinged to the load pull rod (2), and symmetrically arranged inclined plates (4) are hinged on both sides of the conversion block (5), and the inclined plates (4) on each side are hinged to a slewing plate (3);

[0005] The revolving plate (3) is arranged in a triangular shape, and a hinge point is arranged at each corner of the revolving plate (3), one of the hinge points is hinged to the inclined plate (4) so ​​that the revolving plate (3) forms a revolving motion, one of the hinge points is hinged to the panel (12) so that the hinge point becomes a fixed revolving fulcrum when the revolving plate (3) revolves, and one of the hinge points is hinged to a spring pull plate (6) located at the upper part of the revolving plate (3) so that the spring pull plate (6) moves downward under the drive of the revolving plate (3);

[0006] A sleeve (7) is provided on the upper part of the spring pull plate (6) and is connected to the spring pull plate (6) and moves up and down along with the spring pull plate (6);

[0007] The panel (12) is provided with an installation groove for installing a compression sleeve, a spring (20) is arranged in the compression sleeve, and the compression sleeve (16) forms a telescopic sleeve structure with a small upper portion and a large lower portion, wherein the upper sleeve small sleeve (16) moves downward under the guidance of the inner wall of the sleeve large sleeve (17) when being compressed, thereby compressing the spring (20) in the compression sleeve;

[0008] A spring pressure plate (15) for pressing the compression sleeve is arranged on the upper part of the compression sleeve, and the sleeve (7) abuts against the upper surface of the spring pressure plate (15) to press the spring pressure plate (15) when it moves downward.

[0009] A hanging structure is arranged on the upper part of the panel (12), the hanging structure comprising a C-shaped ear plate (13), the lower inner groove of the C-shaped ear plate (13) being clamped on the front and rear surfaces of the upper part of the panel (12), and the C-shaped ear plate (13) is fixedly connected to the panel (12) by connecting bolts (14);

[0010] A lifting lug (10) consisting of two parallel plates is connected to the C-shaped lug plate (13), and a rooting bolt (11) is provided passing through the two parallel plates.

[0011] The panel (12) is composed of a front plate and a rear plate which are arranged in parallel at the front and rear, the front plate and the rear plate forming an integral structure at the bottom, a connecting member (18) is arranged between the two parallel plates, the connecting member (18) passes through the rotating plate (3) to hinge the rotating plate (3) on the panel (12), and a nut (19) is provided to limit the connecting member (18).

[0012] A fixing piece (8) is provided on the upper portion of the sleeve (7) for fixing the sleeve (7) on the spring pressure plate (15).

[0013] The C-shaped ear plate (13) is composed of two parallel supporting plates (9) arranged at the front and rear ends, and the space formed by the grooves of the two supporting plates (9) is used for the panel (12) to be inserted.

[0014] The advantages of the present invention are: the present invention uses the characteristics of the rotation of the slewing plate and the characteristic that the hypotenuse is greater than the right-angled side when the triangular slewing plate rotates through the arrangement of the rhombus conversion block, the inclined plate and the triangular slewing plate structural form and the transmission structure form, so that the transmission structure of the present invention can ensure vertical displacement under the condition of a lower longitudinal transmission distance, improve the structural compactness of the hanger, reduce the requirements for spring accuracy, and ensure that the spring hanger of the present invention has good output performance and good practical performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the present invention.

[0016] Figure 2 for Figure 1 Side view of.

[0017] Figure 3 for Figure 1 Top view of the .

[0018] Figure 4 It is a three-dimensional state diagram of the spring hanger of the present invention.

[0019] Figure 5 for Figure 1 Enlarged view of part A in .

[0020] Figure 6 for Figure 2 Enlarged view of part B in .

[0021] In the figure, 1 is a lifting part, 2 is a load pull rod, 3 is a slewing plate, 4 is a diagonal pull plate, 5 is a conversion block, 6 is a spring pull plate, 7 is a sleeve, 8 is a fixing part, 9 is a support plate, 10 is a lifting ear, 11 is a root bolt, 12 is a panel, 13 is a C-type ear plate, 14 is a connecting bolt, 15 is a spring pressure plate, 16 is a small cover tube, 17 is a large cover tube, 18 is a connecting part, 19 is a nut, and 20 is a spring. DETAILED DESCRIPTION

[0022] A large displacement constant force spring hanger, comprising a panel 12, a hoisting member 1 connected to a load is arranged at the lower part of the panel 12, a load pull rod 2 is connected to the upper part of the hoisting member 1, and a quadrilateral conversion block 5 is connected to the upper part of the load pull rod 2; the lower part of the conversion block 5 is hinged to the load pull rod 2, and symmetrically arranged inclined plates 4 are respectively hinged on both sides of the conversion block 5, and a slewing plate 3 is respectively hinged on the inclined pull plate 4 on each side;

[0023] The revolving plate 3 is arranged in a triangular shape, and a hinge point is arranged at each corner of the revolving plate 3, one of the hinge points is hinged on the inclined plate 4 to make the revolving plate 3 rotate, one of the hinge points is hinged on the panel 12 to make the hinge point a fixed rotating fulcrum when the revolving plate 3 rotates, and one of the hinge points is hinged to the spring pull plate 6 at the upper part of the revolving plate 3, so that the spring pull plate 6 moves downward under the drive of the revolving plate 3;

[0024] The upper part of the spring pull plate 6 is provided with a sleeve 7 which is connected to the spring pull plate 6 and moves up and down with the spring pull plate 6;

[0025] The panel 12 is provided with an installation groove for installing a compression sleeve, and a spring 20 is arranged in the compression sleeve. The compression sleeve 16 is formed into a telescopic sleeve structure with a small upper part and a large lower part, wherein the small sleeve 16 at the upper part moves downward under the guidance of the inner wall of the large sleeve 17 when being compressed, thereby compressing the spring 20 in the compression sleeve;

[0026] A spring pressure plate 15 for pressing the compression sleeve is disposed on the upper portion of the compression sleeve, and the sleeve 7 abuts against the upper surface of the spring pressure plate 15 to press the spring pressure plate 15 when it moves downward.

[0027] A lifting structure is provided on the upper part of the panel 12, and the lifting structure includes a C-shaped ear plate 13, the lower inner groove of the C-shaped ear plate 13 is clamped on the front and rear surfaces of the upper part of the panel 12, and the C-shaped ear plate 13 is fixedly connected to the panel 12 by connecting bolts 14;

[0028] A lifting lug 10 consisting of two parallel plates is connected to the C-shaped lug plate 13 , and a rooting bolt 11 is provided passing through the two parallel plates.

[0029] The panel 12 is composed of a front plate and a rear plate which are arranged in parallel at the front and rear, and the front plate and the rear plate form an integrated structure at the bottom. A connecting member 18 is arranged between the two parallel plates, and the connecting member 18 passes through the rotating plate 3 to hinge the rotating plate 3 to the panel 12, and a nut 19 is arranged to limit the connecting member 18.

[0030] A fixing member 8 for fixing the sleeve 7 on the spring pressure plate 15 is disposed on the upper portion of the sleeve 7 .

[0031] The C-shaped ear plate 13 is composed of two parallel supporting plates 9 arranged at the front and rear sides, and the space formed by the grooves of the two supporting plates 9 is used for the panel 12 to be inserted.

[0032] The present invention is further explained below to provide a better understanding of the present invention: a lifting member 1, such as a basket screw, is threadedly connected to an on-site load (or equipment or pipeline form). After the load is transferred, it is transferred to a conversion block 5 through a load pull rod 2. The conversion block is in a rhombus shape. The conversion block transfers the load to a slewing plate 3 through an inclined pull plate 4. The slewing plates 3 are arranged in a line. The slewing plate 3 transfers the load to a threaded sleeve 7 through a spring pull plate 6. When the threaded sleeve 7 moves downward, the spring pressure plate 15 is prompted to move downward, compressing the spring 20 in the small cover tube 16 and the large cover tube 17. The spring 20 is compressed, and the output reverse elastic force is equal to the pressure of the spring pressure plate 15. In this way, the on-site load will be completely offset by the elastic force of the spring 20, thereby meeting the design requirements.

[0033] The housing of the present invention is suspended under the steel beam on site through the lifting lug 10, the root bolt 11, the panel 12, the C-shaped lug plate 13 and the connecting bolt 14, so as to facilitate its output performance.

Claims

1. A large displacement constant force spring hanger, characterized in that: It comprises a panel, a hoisting piece connected to the load is arranged at the lower part of the panel, a load pull rod is connected to the upper part of the hoisting piece, and a quadrilateral conversion block is connected to the upper part of the load pull rod; the lower part of the conversion block and the load pull rod are hinged, and symmetrically arranged inclined plates are hinged on both sides of the conversion block, and a slewing plate is hinged on each side of the inclined pull plate; The slewing plate is arranged in a triangular shape, and a hinge point is arranged at each corner of the slewing plate, one of the hinge points is hinged to the inclined plate so that the slewing plate forms a slewing motion, one of the hinge points is hinged to the panel so that the hinge point becomes a fixed slewing fulcrum when the slewing plate slews, and one of the hinge points is hinged to a spring pull plate at the upper part of the slewing plate so that the spring pull plate moves downward under the drive of the slewing plate; The upper part of the spring pull plate is provided with a sleeve connected to the spring pull plate and moving up and down with the spring pull plate; The panel is provided with an installation groove for installing a compression sleeve, a spring is arranged in the compression sleeve, and the compression sleeve forms a telescopic sleeve structure with a small top and a large bottom, wherein the small sleeve at the top moves downward under the guidance of the inner wall of the large sleeve when being compressed, thereby compressing the spring in the compression sleeve; A spring pressure plate for pressing the compression cover cylinder is arranged on the upper part of the compression cover cylinder, and the sleeve abuts against the upper surface of the spring pressure plate to press the spring pressure plate when it moves downward; The panel is composed of a front plate and a rear plate which are arranged in parallel. A fixing piece for fixing the sleeve on the spring pressure plate is arranged on the upper part of the sleeve.

2. A large displacement constant force spring hanger according to claim 1, characterized in that: A hoisting structure is provided on the upper part of the panel, and the hoisting structure includes a C-shaped ear plate, the lower inner groove of the C-shaped ear plate is clamped on the front and rear surfaces of the upper part of the panel, and the C-shaped ear plate is fixedly connected to the panel by connecting bolts; A lifting lug consisting of two parallel plates is connected to the C-shaped lug plate, and a rooting bolt is provided to pass through the two parallel plates.

3. A large displacement constant force spring hanger according to claim 2, characterized in that: The C-shaped ear plate is composed of two parallel supporting plates arranged at the front and rear, and the space formed by the grooves of the two supporting plates is used for the panel to be inserted.

4. A large displacement constant force spring hanger according to claim 1, characterized in that: The front plate and the rear plate form an integral structure at the bottom, a connecting piece is provided between the parallel front plate and the rear plate, the connecting piece passes through the rotating plate to hinge the rotating plate to the panel, and a nut is provided to limit the connecting piece.

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