阅读说明：本技术 一种载荷逆向变化的复合型弹性支吊装置 (Composite elastic supporting and hanging device with reversely-changed load ) 是由 陈盛广 王军民 李楠林 武彦飞 陈尚军 王石军 秦沫 于 2020-06-09 设计创作，主要内容包括：本发明公开了一种载荷逆向变化的复合型弹性支吊装置,辅簧的一端固定于壳体的侧板上,辅簧的另一端固定于辅簧压板的一侧面上,辅簧载荷调节杆的一端固定于辅簧压板的另一侧面上,辅簧载荷调节杆的另一端连接于刀型摆臂的中部,主簧压板组件的顶部设置有第一轴承,其中,第一轴承的外周面与刀型摆臂的侧面相接触,刀型摆臂的下端活动连接于壳体上；主簧的下端固定于底部压板上,主簧的上端插入于壳体内后固定于主簧压板组件上,综合输出载荷拉杆的上端连接于主簧压板组件上,综合输出载荷拉杆的下端穿过底部压板,该装置能够实现吊点向下位移时,输出载荷逐渐减小,吊点向上位移时,输出载荷逐渐增大。(The invention discloses a composite elastic supporting and hanging device with reversely changed load, wherein one end of an auxiliary spring is fixed on a side plate of a shell, the other end of the auxiliary spring is fixed on one side surface of an auxiliary spring pressing plate, one end of an auxiliary spring load adjusting rod is fixed on the other side surface of the auxiliary spring pressing plate, the other end of the auxiliary spring load adjusting rod is connected to the middle part of a knife-shaped swing arm, a first bearing is arranged at the top of a main spring pressing plate assembly, the peripheral surface of the first bearing is in contact with the side surface of the knife-shaped swing arm, and the lower end of the knife-shaped swing arm is movably connected to the shell; the lower extreme of main spring is fixed in on the bottom clamp plate, and on the main spring clamp plate subassembly was fixed in to the upper end of main spring after inserting in the casing, the upper end of synthesizing the output load pull rod was connected on main spring clamp plate subassembly, and the lower extreme of synthesizing the output load pull rod passes the bottom clamp plate, and the device can realize that when the hoisting point shifts down, output load reduces gradually, and when the hoisting point shifts up, output load increases gradually.)

1. A composite elastic supporting and hanging device with reversely changed load is characterized by comprising a shell (4), a main spring pressing plate assembly (3), a main spring (6), a bottom pressing plate (7) and a comprehensive output load pull rod (8);

the main spring pressing plate assembly (3) is positioned in the shell (4), and a plurality of spring members are arranged between the main spring pressing plate assembly (3) and the inner wall of the shell (4), wherein each spring member comprises an auxiliary spring (10), an auxiliary spring pressing plate (11), an auxiliary spring load adjusting rod (12) and a knife-shaped swing arm (1);

one end of an auxiliary spring (10) is fixed on a side plate of the shell (4), the other end of the auxiliary spring (10) is fixed on one side surface of an auxiliary spring pressing plate (11), one end of an auxiliary spring load adjusting rod (12) is fixed on the other side surface of the auxiliary spring pressing plate (11), the other end of the auxiliary spring load adjusting rod (12) is connected to the middle part of the knife-shaped swing arm (1), a first bearing (13) is arranged at the top of the main spring pressing plate assembly (3), wherein the outer peripheral surface of the first bearing (13) is in contact with the side surface of the knife-shaped swing arm (1), and the lower end of the knife-shaped swing arm (1) is movably connected to the shell (4);

the lower end of a main spring (6) is fixed on a bottom pressing plate (7), the upper end of the main spring (6) is inserted into the shell (4) and then fixed on the main spring pressing plate assembly (3), the upper end of a comprehensive output load pull rod (8) is connected on the main spring pressing plate assembly (3), and the lower end of the comprehensive output load pull rod (8) penetrates through the bottom pressing plate (7).

2. The composite elastic supporting and hanging device with reversely changed load according to claim 1, wherein the lower end of the integrated output load pull rod (8) is connected with a threaded hanger rod (9) of a hung device, and the top of the shell (4) is provided with a single-hole hanging plate (5).

3. A composite elastic suspension device with inversely varying load according to claim 1, wherein the bottom pressure plate (7) is connected to the bottom of the housing (4) by a plurality of load bolts (21).

4. The composite elastic supporting and hanging device with reversely changed load according to claim 1, wherein a round shaft (20) is arranged on the main spring pressing plate component (3), and the upper end of the comprehensive output load pull rod (8) is connected with the round shaft (20) through a threaded lifting lug (19).

5. The composite elastic supporting and hanging device with the reversely-changed load as claimed in claim 1, wherein the surface of the knife-shaped swing arm (1) contacting the first bearing (13) is an arc curved surface.

6. The composite elastic suspension device with reversely changed load according to claim 1, wherein the lower end of the knife-shaped swing arm (1) is fixed on the housing (4) through a second bearing (14).

7. A composite elastic suspension device with load varying inversely according to claim 1, characterized in that the main spring-loaded plate assembly (3) is provided with a displacement pointer (23), and the outer surface of the housing (4) is provided with a displacement dial (24) fitted with the displacement pointer (23).

8. Composite elastic suspension device with inverse variation of load according to claim 1, characterized in that the number of spring members is two and the two spring members are symmetrically distributed with respect to the main spring (6) and the main spring presser assembly (3).

9. The composite elastic supporting and hanging device with reversely changed load as claimed in claim 2, wherein a load measuring component (2) is arranged between the lower end of the comprehensive output load pull rod (8) and the threaded suspender (9), wherein the load measuring component (2) is connected with a load display (22).

10. The composite elastic supporting and hanging device with reversely changed load according to claim 1, wherein the section of the main spring pressing plate assembly (3) is an isosceles trapezoid structure, the main spring pressing plate assembly (3) comprises a first trapezoid plate (25), a second trapezoid plate (1) and a top plate (16), the first trapezoid plate (25) is parallel to the second trapezoid plate (15), the first trapezoid plate (25) and the second trapezoid plate (15) are distributed in the front and back direction, a first bearing (13) is fixed between the position of the top corner of the first trapezoid plate (25) and the position of the top corner of the second trapezoid plate (15), the top of the first trapezoid plate (25) and the top of the second trapezoid plate (15) are both fixed on the top plate (16), a hexagon head bolt (17) passes through a locking nut (18) and is fixed on the top plate (16), and a circular shaft (20) is connected between the first trapezoid plate (25) and the second trapezoid plate (15), the displacement pointer (23) is fixed to the end of the circular shaft (20), and the displacement dial (24) is provided on the first trapezoidal plate (25).

Technical Field

The invention relates to a composite elastic supporting and hanging device, in particular to a composite elastic supporting and hanging device with reversely-changed load.

Background

At present, the elastic support and hanger commonly used in the domestic and foreign energy industry comprises various types of constant-force spring support and hangers and variable spring support and hanger, under an ideal state, no matter a hanging point is displaced downwards or upwards, the load of the constant-force spring support and hanger is constant, actually, because the spring stiffness deviation, the manufacturing deviation and the inevitable friction of each rotating and sliding part exist, the load of the constant-force spring support and hanger cannot be absolutely constant, under the actual condition, when the constant-force spring support and hanger is displaced downwards, the output load of the constant-force spring support and hanger is generally increased gradually, when the constant-force spring support and hanger is displaced upwards, the output load of the constant-force spring support and hanger is generally reduced gradually, and for sensitive equipment, the deviation can bring unsafe consequences. Therefore, a device for offsetting such an output load deviation is required. Further, according to the design principle, the output load of the variable spring hanger gradually increases when the hanging point is displaced downward, and the output load of the variable spring hanger gradually decreases when the hanging point is displaced upward, and there is no device in which the output load decreases as designed when the hanging point is displaced downward, and the output load increases as designed when the hanging point is displaced upward.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides a composite elastic supporting and hanging device with reversely-changed load, which can realize that the output load is gradually reduced when a hanging point moves downwards and the output load is gradually increased when the hanging point moves upwards.

In order to achieve the aim, the composite elastic supporting and hanging device with the reversely-changed load comprises a shell, a main spring pressing plate assembly, a main spring, a bottom pressing plate and a comprehensive output load pull rod;

the main spring pressing plate assembly is positioned in the shell, and a plurality of spring members are arranged between the main spring pressing plate assembly and the inner wall of the shell, wherein each spring member comprises an auxiliary spring, an auxiliary spring pressing plate, an auxiliary spring load adjusting rod and a knife-shaped swing arm;

one end of an auxiliary spring is fixed on a side plate of the shell, the other end of the auxiliary spring is fixed on one side surface of an auxiliary spring pressing plate, one end of an auxiliary spring load adjusting rod is fixed on the other side surface of the auxiliary spring pressing plate, the other end of the auxiliary spring load adjusting rod is connected to the middle part of the knife-shaped swing arm, a first bearing is arranged at the top of the main spring pressing plate assembly, the peripheral surface of the first bearing is in contact with the side surface of the knife-shaped swing arm, and the lower end of the knife-shaped swing arm is movably connected to the shell;

the lower end of the main spring is fixed on the bottom pressing plate, the upper end of the main spring is inserted into the shell and then fixed on the main spring pressing plate assembly, the upper end of the comprehensive output load pull rod is connected on the main spring pressing plate assembly, and the lower end of the comprehensive output load pull rod penetrates through the bottom pressing plate.

The lower end of the comprehensive output load pull rod is connected with a threaded suspender of the hung equipment, and the top of the shell is provided with a single-hole hanging plate.

The bottom pressing plate is connected with the bottom of the shell through a plurality of load bolts.

The main spring pressing plate assembly is provided with a round shaft, and the upper end of the comprehensive output load pull rod is connected with the round shaft through a threaded lifting lug.

The surface of the knife-shaped swing arm, which is contacted with the first bearing, is an arc curved surface.

The lower end of the knife-shaped swing arm is fixed on the shell through a second bearing.

A displacement pointer is arranged on the main spring pressing plate assembly, and a displacement dial matched with the displacement pointer is arranged on the outer surface of the shell;

the number of spring members is two, and the two spring members are symmetrically distributed with respect to the main spring and the main spring platen assembly.

And a load measuring assembly is arranged between the lower end of the comprehensive output load pull rod and the threaded suspender, wherein the load measuring assembly is connected with a load display.

The cross-section of main spring clamp plate subassembly is isosceles trapezoid structure, main spring clamp plate subassembly includes first trapezoidal plate, second trapezoidal plate and roof, first trapezoidal plate parallels with the second trapezoidal plate, and distribute around first trapezoidal plate and the second trapezoidal plate, first bearing is fixed in between the position at first trapezoidal plate top angle and the position at second trapezoidal plate top angle, the top of first trapezoidal plate and the top of second trapezoidal plate all are fixed in on the roof, the hexagon head bolt passes on lock nut is fixed in the roof, circle hub connection is between first trapezoidal plate and second trapezoidal plate, the displacement pointer is fixed in the tip of circle axle, the displacement calibrated scale sets up on first trapezoidal plate.

The invention has the following beneficial effects:

the composite elastic supporting and hanging device with the reversely-changed load is characterized in that when the main spring pressing plate assembly moves from top to bottom in specific operation, the axial component force of the auxiliary spring along the main spring is gradually reduced and then gradually increased, and the load of the main spring is gradually increased.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of a knife-shaped swing arm 1 according to the present invention;

FIG. 3 is a schematic view of the load cell assembly 2 of the present invention;

FIG. 4a is a schematic structural diagram of the main spring-loaded clamp assembly 3 according to the present invention;

FIG. 4b is a cross-sectional view taken along line A-A of FIG. 4 a;

FIG. 4c is a cross-sectional view taken along line B-B of FIG. 4 a;

fig. 5 is a graph of the change in the integrated output load of the present invention.

Wherein, 1 is a knife-shaped swing arm, 2 is a load measuring assembly, 3 is a main spring pressing plate assembly, 4 is a shell, 5 is a single-hole hanging plate, 6 is a main spring, 7 is a bottom pressing plate, 8 is a comprehensive output load pull rod, 9 is a threaded hanging rod, 10 is an auxiliary spring, 11 is an auxiliary spring pressing plate, 12 is an auxiliary spring load adjusting rod, 13 is a first bearing, 14 is a second bearing, 15 is a second trapezoidal plate, 16 is a top plate, 17 is a hexagon head bolt, 18 is a locking nut, 19 is a threaded lifting lug, 20 is a round shaft, 21 is a load bolt, 22 is a load display, 23 is a displacement pointer, 24 is a displacement dial and 25 is a first trapezoidal plate.

Detailed Description

The invention is described in further detail below with reference to the accompanying drawings:

referring to fig. 1 to 5, the composite elastic support and hanging device with reversely changing load of the present invention comprises a housing 4, a main spring pressing plate assembly 3, a main spring 6, a bottom pressing plate 7 and a comprehensive output load pull rod 8; the main spring pressing plate assembly 3 is positioned in the shell 4, and a plurality of spring members are arranged between the main spring pressing plate assembly 3 and the inner wall of the shell 4, wherein the spring members comprise auxiliary springs 10, auxiliary spring pressing plates 11, auxiliary spring load adjusting rods 12 and knife-shaped swing arms 1; one end of an auxiliary spring 10 is fixed on a side plate of the shell 4, the other end of the auxiliary spring 10 is fixed on one side surface of an auxiliary spring pressing plate 11, one end of an auxiliary spring load adjusting rod 12 is fixed on the other side surface of the auxiliary spring pressing plate 11, the other end of the auxiliary spring load adjusting rod 12 is connected to the middle part of the knife-shaped swing arm 1, a first bearing 13 is arranged at the top of the main spring pressing plate assembly 3, wherein the peripheral surface of the first bearing 13 is in contact with the side surface of the knife-shaped swing arm 1, and the lower end of the knife-shaped swing arm 1 is movably connected to the shell 4; the lower end of the main spring 6 is fixed on the bottom pressing plate 7, the upper end of the main spring 6 is inserted into the shell 4 and then fixed on the main spring pressing plate component 3, the upper end of the comprehensive output load pull rod 8 is connected on the main spring pressing plate component 3, and the lower end of the comprehensive output load pull rod 8 penetrates through the bottom pressing plate 7.

The lower end of the comprehensive output load pull rod 8 is connected with a threaded suspender 9 of the hung equipment, and the top of the shell 4 is provided with a single-hole hanging plate 5; the bottom pressure plate 7 is connected with the bottom of the shell 4 through a plurality of load bolts 21; the spring pressing plate component 3 is provided with a round shaft 20, and the upper end of the comprehensive output load pull rod 8 is connected with the round shaft 20 through a threaded lifting lug 19.

The surface of the knife-shaped swing arm 1, which is in contact with the first bearing 13, is an arc curved surface; the lower end of the knife-shaped swing arm 1 is fixed on the shell 4 through a second bearing 14; the number of spring members is two, and the two spring members are symmetrically distributed with respect to the main spring 6 and the main spring hold-down assembly 3.

A load measuring assembly 2 is arranged between the lower end of the comprehensive output load pull rod 8 and the threaded suspender 9, wherein the load measuring assembly 2 is connected with a load display 22; a displacement pointer 23 is arranged on the main spring pressing plate component 3, and a displacement dial 24 matched with the displacement pointer 23 is arranged on the outer surface of the shell 4;

in addition, the cross section of main spring clamp plate subassembly 3 is isosceles trapezoid structure, main spring clamp plate subassembly 3 includes first trapezoidal plate 25, second trapezoidal plate 1 and roof 16, first trapezoidal plate 25 parallels with second trapezoidal plate 15, and first trapezoidal plate 25 distributes around with second trapezoidal plate 15, first bearing 13 is fixed in between the position of first trapezoidal plate 25 top angle and the position of second trapezoidal plate 15 top angle, the top of first trapezoidal plate 25 and the top of second trapezoidal plate 15 are all fixed in on roof 16, hexagon head bolt 17 passes lock nut 18 and is fixed in on roof 16, circle axle 20 is connected between first trapezoidal plate 25 and second trapezoidal plate 15, displacement pointer 23 is fixed in the tip of circle axle 20, displacement dial 24 sets up on first trapezoidal plate 25.

The main spring 6 is sleeved on the comprehensive output load pull rod 8; the auxiliary springs 10 are horizontally distributed; the end part of the auxiliary spring load adjusting rod 12 is connected with a shaft hole on the side surface of the knife-shaped swing arm 1; the hexagon head bolt 17 passes through the locking nut 18 and is fixed on the top plate 16 at the upper part of the main spring pressing plate component 3, and the first bearing 13 and the second bearing 14 are oilless bearings or rolling bearings;

during operation, when the main spring pressing plate assembly 3 runs from top to bottom, the axial component force of the auxiliary spring 10 along the main spring 6 is gradually reduced and then gradually increased, and the load of the main spring 6 is gradually increased, during actual operation, the arc surface parameters of the knife-shaped swing arm 1 are designed, the comprehensive output load F of the composite elastic supporting and hanging device with the reversely-changed load is F1+ F2+ F3, wherein F1 is the load of the main spring 6, F2 is the axial component force of the auxiliary spring 10 along the main spring 6 in one spring member, F3 is the axial component force of the auxiliary spring 10 along the main spring 6 in the other spring member, because the contact surface of the knife-shaped swing arm 1 and the first bearing 13 is the arc surface, by designing the parameters of the arc surface, the comprehensive output load F is gradually reduced when the main spring pressing plate assembly 3 displaces downwards, and the comprehensive output load F is gradually increased when the main spring pressing plate assembly 3 displaces upwards, wherein the magnitude of the comprehensive output load F is measured by the load measuring assembly 2, and simultaneously, the load display 22 displays that the vertical displacement of the hoisting point is obtained by matching a displacement pointer 23 with a displacement dial 24.

The measuring mode of the load measuring component 2 comprises measuring the axial load by one or more of stress strain, grating and hydraulic measuring modes, the load display mode of the load measuring component 2 comprises one or more of pointer scale mode and digital display, and a wired and wireless data output interface is reserved.

By adjusting the distance between the hexagon head bolt 17 on the main spring pressing plate component 3 and the top of the shell 4, the overload and displacement can be prevented.