CN202040493U

CN202040493U - Sleeve-spring-type constant-force spring supporting and hanging frame

Info

Publication number: CN202040493U
Application number: CN2011201319073U
Authority: CN
Inventors: 李超; 殷增喜; 李耀辉
Original assignee: DALIAN SPRING Co Ltd
Current assignee: DALIAN SPRING Co Ltd
Priority date: 2011-04-29
Filing date: 2011-04-29
Publication date: 2011-11-16
Anticipated expiration: 2021-04-29

Abstract

The utility model relates to a sleeve-spring-type constant-force spring supporting and hanging frame, which comprises a supporting body and a swinging mechanism which is installed on the supporting body through a main shaft. The swinging mechanism on one side of the main shaft is rotatably connected with the upper end of a loading bolt. The swinging mechanism on the other side of the main shaft is rotatably connected with the upper part of a pulling plate. A bottom plate is arranged at the lower end of the supporting body and a vertical sliding way is arranged. A roller or a sliding block which is matched with the sliding way is installed at the lower end of the pull plate and is connected with the upper end of a pulling rod bolt. The lower end of the pulling rod bolt is connected with a pressing plate. An outer spring which is sheathed on the external side of the pulling rod bolt is arranged between the pressing plate and the bottom plate. An inner spring is arranged on the internal side of the outer spring. The upper end of the inner spring leans against the lower surface of the bottom plate. The lower end of the inner spring leans against on the upper surface of the pressing plate. The sleeve-spring-type constant-force spring supporting and hanging frame has the advantages of low manufacturing difficulty, easiness in manufacturing, low cost, small occupied space and the like.

Description

Cover spring formula constant-force spring hanger

Technical field

The utility model relates to a kind of suspension bracket, particularly a kind of industrial pipeline that is used for industries such as electric power, chemical industry or equipment and the cover spring formula constant-force spring hanger that occasions such as thermal walking and load is invariable need be arranged at vertical direction.

Background technique

At present, at electric power, often use suspension bracket fixing lifting industrial pipeline or equipment in the industries such as chemical industry, existing hanger structure is support to be arranged and be installed in swing mechanism on the support by main shaft, being positioned at a side of main shaft and the upper end of load bolt on the swing mechanism is rotationally connected, being positioned at the opposite side of main shaft and the top of arm-tie on the swing mechanism is rotationally connected, on there is base plate the lower end of support and is provided with, the slideway of lower direction, the lower end of arm-tie is equipped with roller or the slide block that matches with slideway, the upper end of roller or slide block and stay-bolt joins, the lower end of stay-bolt is connected to pressing plate, be provided with the spring that is enclosed within the stay-bolt outside between pressing plate and base plate, there is the cylindrical shell that joins with base plate in the outside of spring.This device is fixed on the foundation frame by the top board of support top, and the lower end of load bolt is connected with the lifted weight thing by the degree of tightness nut, applies active force by the stay-bolt that joins with swing mechanism to spring, and spring is compressed at this moment.The suspension bracket of this structure, if run into the bigger working condition of load and displacement, it is big that each component specification model must become, the height of cylindrical shell and thickness also strengthen thereupon, not only material consumption increases, and the more important thing is that the spring material directly becomes big back manufacture difficulty and strengthens thereupon, has increased cost of production, even can't make the size requirement that maybe can't guarantee standard, also make the outer deformation of suspension bracket cause taking up room greatly simultaneously.

Summary of the invention

The purpose of this utility model provides a kind of big load and cover spring formula constant-force spring hanger that reduces the spring difficulty of processing, reduces processing cost, takes up room little of being applicable to, overcomes the deficiencies in the prior art.

Cover spring formula constant-force spring hanger of the present utility model, comprise support and be installed in swing mechanism on the support by main shaft, being positioned at a side of main shaft and the upper end of load bolt on the swing mechanism is rotationally connected, being positioned at the opposite side of main shaft and the top of arm-tie on the swing mechanism is rotationally connected, on there is base plate the lower end of support and is provided with, the slideway of lower direction, the lower end of described arm-tie is equipped with roller or the slide block that matches with described slideway, the upper end of roller or slide block and stay-bolt joins, the lower end of stay-bolt is connected to pressing plate, between pressing plate and base plate, be provided with the outer spring that is enclosed within the stay-bolt outside, be provided with inner spring in the outer spring inboard, on the upper end of inner spring leans below base plate, on the lower end of inner spring leans on pressing plate.

Cover spring formula constant-force spring hanger of the present utility model, the following of wherein said base plate is being fixed with outer race between outer spring and the inner spring, and the inboard that is positioned at inner spring below the base plate is fixed with the upper inner seat circle; The top outer race down that is fixed with between outer spring and inner spring of described pressing plate, the inboard that is positioned at inner spring above the pressing plate is fixed with the lower inner seat circle.

Cover spring formula constant-force spring hanger of the present utility model, owing to be provided with inner spring in the inboard of outer spring, coaxial spring is simultaneously stressed when operation, has increased the ability of carrying, need not to strengthen under the situation of specification, can bear bigger load, overall structure is simple, and is easy to manufacture, good processing, low cost of manufacture is widened load Applicable scope.Upper and lower each seat ring in this suspension bracket is internal, outer spring has played leading role, makes inside and outside telescopic spring smooth and easy freely, and no jump ring phenomenon takes place.

Description of drawings

Fig. 1 is the structural representation of the utility model embodiment;

Fig. 2 is a B-B enlarged view shown in Figure 1.

Embodiment

As shown in Figure 1, 2: this suspension bracket top is support, and this support comprises two support side plate that are parallel to each other 22, is welded with top board 1 in the top of two support side plate 22, is processed with mounting hole on the top board 1, is used for fixing this suspension bracket.Bottom in support side plate 22 is welded with base plate 6.Support forms frame structure.

Be connected with swing mechanism on the support, concrete structure is as follows: two rotor plates that are parallel to each other 3 are arranged in the support inboard, be rotationally connected mutually by main shaft 18 between rotor plate 3 and the support side plate 22.Be fixed with spacing bearing pin 2 in the outside of each rotor plate 3, spacing bearing pin 2 just is positioned at the curve bath 21 on the support side plate 22, when rotor plate 3 rotates with respect to support side plate 22 along main shaft 18, can be undertaken spacingly by spacing bearing pin 2 and curve bath 21, guarantee that rotor plate 3 can relatively rotate several angle with respect to support side plate 22.

A side that is positioned at main shaft 18 on rotor plate 3 is rotationally connected by the upper end of coupling shaft 20 with load bolt 19.Be that load bolt 19 can rotate with respect to rotor plate 3 along coupling shaft 20.Be connected with degree of tightness nut 17 at the lower end of load bolt 19 screw thread and be used to connect the lifted weight thing.

The opposite side that is positioned at main shaft 18 on two parallel rotor plates 3 has connecting plate, is installed with connecting bolt 4 on this connecting plate, and connecting bolt 4 is between two rotor plates 3.The inner of connecting bolt 4 is rotationally connected by the top of roll pin and arm-tie 5.The bottom of arm-tie 5 is equipped with roller or slide block, is fixed with vertical slideway and roller or slide block and matches below base plate 6.The upper end of the below of roller or slide block and stay-bolt 11 joins.When rotor plate 3 rotates with respect to support side plate 22, drive stay-bolt 11 upper and lower actions by connecting bolt 4, arm-tie 5, roller or slide block, this moment roller or slide block upper and lower slip in slideway.There is pressing plate 10 lower end of stay-bolt 11, and it is spacing to pressing plate 10 that the lower end of stay-bolt 11 is furnished with nut.

Between base plate 6 and pressing plate 10, be provided with outer spring 7, be provided with the inner spring 12 coaxial in outer spring 7 inboards, form the form of inside and outside suit dual spring with outer spring 7.On the upper end of inner spring 12 leans below base plate 6, on the lower end of inner spring 12 leans on pressing plate 10.

The following of base plate 6 is welded with outer race 8 between outer spring 7 and inner spring 12, the inboard that is positioned at inner spring 12 below the base plate 6 is welded with upper inner seat circle 13; The top outer race 14 down that is welded with between outer spring 7 and inner spring 12 of pressing plate 10, the inboard that is positioned at inner spring 12 above the pressing plate 10 is welded with lower inner seat circle 15.The internal diameter size of the spring in above-mentioned each seat ring external diameter and its outside matches very little gap is promptly arranged, and when telescopic spring, each seat ring plays the leading role to spring.On base plate 6, be welded with the cylindrical shell 9 that covers on outer spring 7 outsides.

This suspension bracket is fixedlyed connected with foundation frame by top board 1, by the degree of tightness nut 17 lifted weight thing (as industrial pipeline or equipment) of slinging, rotor plate 3 is rotated with respect to support side plate 22, this moment, spacing bearing pin slided in curve bath 21, connecting bolt 4 upwards rotates with rotor plate 3, drive on the pressing plate 10 and move by arm-tie 5, roller or slide block, stay-bolt 11, each spring is compressed, bear weight by spring.Because the suit dual spring, the diameter that does not increase spring can increase the load of suspension bracket, has reduced manufacture difficulty, has reduced cost.Each seat ring play the guiding role during the spring compressive deformation, increases the stability of spring, stops the jump ring phenomenon.

Claims

1. one kind is overlapped spring formula constant-force spring hanger, comprise support and be installed in swing mechanism on the support by main shaft (18), being positioned at a side of main shaft (18) and the upper end of load bolt (19) on the swing mechanism is rotationally connected, being positioned at the opposite side of main shaft (18) and the top of arm-tie (5) on the swing mechanism is rotationally connected, base plate (6) is arranged in the lower end of support and be provided with, the slideway of lower direction, the lower end of described arm-tie (5) is equipped with roller or the slide block that matches with described slideway, the upper end of roller or slide block and stay-bolt (11) joins, the lower end of stay-bolt (11) is connected to pressing plate (10), between pressing plate (10) and base plate (6), be provided with the outer spring (7) that is enclosed within stay-bolt (11) outside, it is characterized in that: be provided with inner spring (12) in outer spring (7) inboard, on the upper end of inner spring (12) leans below base plate (6), on the lower end of inner spring (12) leans on pressing plate (10).

2. cover spring formula constant-force spring hanger according to claim 1, it is characterized in that: be positioned at below the described base plate (6) between outer spring (7) and the inner spring (12) and be fixed with outer race (8), the inboard that is positioned at inner spring (12) below the base plate (6) is fixed with upper inner seat circle (13); Be positioned at above the described pressing plate (10) between outer spring (7) and the inner spring (12) and be fixed with down outer race (14), the inboard that is positioned at inner spring (12) above the pressing plate (10) is fixed with lower inner seat circle (15).