CN212407812U - Furnace tube constant force hanger - Google Patents
Furnace tube constant force hanger Download PDFInfo
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- CN212407812U CN212407812U CN202021093865.4U CN202021093865U CN212407812U CN 212407812 U CN212407812 U CN 212407812U CN 202021093865 U CN202021093865 U CN 202021093865U CN 212407812 U CN212407812 U CN 212407812U
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Abstract
The utility model belongs to the field of mechanical hangers, and relates to a furnace tube constant force hanger, which comprises a shell, wherein a middle partition plate is fixed at the middle position of the shell, the shell is divided into an upper shell and a lower shell by the middle partition plate, a main spring is arranged in the upper shell, a spring pull rod penetrates through the axis position of the main spring, a spring pressing plate is arranged at the upper part of the spring pull rod, the bottom of the spring pull rod penetrates through the middle partition plate and is fixedly connected with a roller frame arranged in the lower shell, the bottom of the roller frame is fixedly connected with one end of a load bolt, and the bottom of the load; the two sides of the roller carrier are respectively connected with rollers through roller shafts, two rollers are respectively arranged between the two rollers and the lower shell side plate, the plate springs are arranged in an inclined mode from top to bottom from the lower shell side plate to the direction of the load bolt, the tops of the plate springs are fixedly connected with the lower shell side plate, and the two rollers are respectively in contact with the corresponding plate springs. The utility model discloses small, occupation space is little, can provide invariable pulling force.
Description
Technical Field
The utility model relates to a boiler tube constant force gallows belongs to mechanical gallows field.
Background
In petrochemical and chemical industries, various reforming furnaces and cracking furnaces are widely applied, various high-temperature furnace tubes are densely arranged in the furnaces, the yield and the benefit are determined by the number of the furnace tubes, and the number of the furnace tubes is determined by the volume of the constant-force hanger. The current constant-force hanger is large in size and large in occupied space, the number of furnace tubes cannot be maximized due to the limitation of the size of the current constant-force hanger, and the yield and the benefit of an enterprise are also greatly limited.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: overcome prior art's not enough, provide a boiler tube constant force gallows, this boiler tube constant force gallows is small, and occupation space is little, can provide invariable pulling force, makes boiler tube quantity in the stove can realize the maximize, improves the output and the benefit of enterprise.
The furnace tube constant-force hanger comprises a shell, wherein a middle partition plate is fixed at the middle position of the shell, the shell is divided into an upper shell and a lower shell by the middle partition plate, a main spring is arranged in the upper shell, a spring pull rod penetrates through the axis position of the main spring, a spring pressing plate is arranged at the upper part of the spring pull rod, two ends of the main spring are respectively abutted against the spring pressing plate and the middle partition plate, the bottom of the spring pull rod penetrates through the middle partition plate and is fixedly connected with a roller frame arranged in the lower shell, the bottom of the roller frame is fixedly connected with one end of a load bolt, and the bottom of the load bolt penetrates; the two sides of the roller carrier are respectively connected with rollers through roller shafts, two rollers are respectively arranged between the two rollers and the lower shell side plate, the plate springs are arranged in an inclined mode from top to bottom from the lower shell side plate to the direction of the load bolt, the tops of the plate springs are fixedly connected with the lower shell side plate, and the two rollers are respectively in contact with the corresponding plate springs.
When the device is used, when the load bolt is pulled by an external force to move downwards, the load bolt pulls the roller carrier to move downwards, the roller carrier drives the spring pull rod to move downwards, so that the spring pressing plate moves downwards to compress the main spring, the elastic force of the main spring linearly increases along with the continuous downward movement of the load bolt, meanwhile, the roller carrier drives the roller to move downwards along with the downward movement of the roller carrier, the plate springs on two sides are compressed along with the downward movement of the roller, the force arm length of the roller compression plate spring is linearly lengthened, the required compression force is linearly reduced, the upward counter force provided by the plate springs is linearly reduced, the pre-compression force of the main spring and the plate springs is adjusted during installation, the resultant force of the main spring and the plate springs can be kept constant, and the output force of the load bolt is constant. The magnitude of the precompression force of the main spring can be achieved by adjusting the precompression length of the main spring. The left and right directions of the device are small in size, occupied space is small, the number of the furnace tubes which can be installed in the same space is large, and therefore the number of the furnace tubes can be maximized.
Preferably, the bottom end of the plate spring is provided with a first through hole, the side plate of the lower shell is provided with a second through hole, the adjusting bolt penetrates through the first through hole and the second through hole simultaneously, the end part of the adjusting bolt is provided with an adjusting nut, and the pre-compression force of the plate spring can be adjusted by adjusting the distance between the bottom end of the plate spring and the side plate of the lower shell.
Preferably, the bottom end of the load bolt is connected with a basket nut arranged below the lower shell, and a hanging object is arranged below the lower shell.
Preferably, a side plate of the lower shell is provided with a strip hole in the vertical direction, the outer walls of the side plates on two sides of the strip hole are respectively and fixedly provided with a positioning rack, a positioning block is arranged between the two positioning racks, two sides of the positioning block are provided with teeth matched with the two positioning racks, the middle position of the positioning block is provided with a third through hole, a panel of the roller frame, which is close to the strip hole, is provided with a jack, and the positioning pin is simultaneously inserted into the third through hole, the strip hole and the jack. When the device is installed, the roller carrier is moved to a required position according to different upward or downward displacement directions of the lower suspension furnace tube or other suspension objects during working, then the positioning block is horizontally inserted into the two positioning racks, and the positioning pin passes through the third through hole, the long hole and the jack in sequence to fix the position of the roller carrier; after the device is installed, before the device is formally started, the positioning block is detached, the roller carrier can move upwards or downwards according to the set displacement direction, and the bottom end of the load bolt provides a constant supporting force for a furnace tube or other suspended objects below in the process of moving up and down.
Compared with the prior art, the utility model beneficial effect who has is:
the utility model has the advantages of reasonable design, it is small, occupation space is little, can provide invariable pulling force, makes boiler tube quantity in the stove realize the maximize, improves the output and the benefit of enterprise.
Drawings
FIG. 1 is a schematic view of an internal structure of a furnace tube constant-force hanger;
FIG. 2 is a schematic view of an external structure of the furnace tube constant-force hanger.
In the figure: 1. an upper housing; 2. a spring pressing plate; 3. a spring pull rod; 4. a main spring; 5. a middle partition plate; 6. a roller; 7. a roller frame; 8. a plate spring; 9. adjusting the bolt; 10. a lower housing; 11. a load bolt; 12. a flower basket nut; 13. positioning the rack; 14. a strip hole; 15. positioning blocks; 16. positioning pins; 17. and adjusting the nut.
Detailed Description
The invention will be further described with reference to the accompanying drawings:
as shown in fig. 1 and 2, the furnace tube constant-force hanger of the present invention comprises a housing, wherein a middle partition plate 5 is fixed at the middle position of the housing, the middle partition plate 5 divides the housing into an upper housing 1 and a lower housing 10, a main spring 4 is arranged inside the upper housing 1, a spring pull rod 3 penetrates through the axis position of the main spring 4, a spring pressing plate 2 is arranged on the upper portion of the spring pull rod 3, two ends of the main spring 4 are respectively abutted against the spring pressing plate 2 and the middle partition plate 5, the bottom of the spring pull rod 3 penetrates through the middle partition plate 5 and is fixedly connected with a roller frame 7 arranged in the lower housing 10, the bottom of the roller frame 7 is fixedly connected with one end of a load bolt 11, and the bottom of the load bolt 11 penetrates through; the two sides of the roller carrier 7 are respectively connected with rollers 6 through roller shafts, a plate spring 8 is arranged between each roller 6 and the side plate of the lower shell 10, the plate springs 8 are arranged from top to bottom in a mode that the side plate of the lower shell 10 inclines towards the direction of the load bolt 11, the top ends of the plate springs 8 are fixedly connected with the side plate of the lower shell 10, and the two rollers 6 are respectively contacted with the corresponding plate springs 8.
In this embodiment:
8 bottom of plate spring is equipped with through-hole one, and lower casing 10 curb plate is equipped with through-hole two, and adjusting bolt 9 passes through-hole one and through-hole two simultaneously, and adjusting bolt 9 tip is equipped with adjusting nut 17, can realize adjusting plate spring 8's precompression power size through the interval between 8 bottoms of adjusting plate spring and the lower casing 10 curb plate.
The bottom end of the load bolt 11 is connected to a basket nut 12 disposed below the lower case 10, and a hanging object is mounted downward.
A side plate of the lower shell 10 is provided with a vertical long hole 14, the outer walls of the side plates at two sides of the long hole 14 are respectively and fixedly provided with a positioning rack 13, a positioning block 15 is arranged between the two positioning racks 13, teeth matched with the two positioning racks 13 are arranged at two sides of the positioning block 15, a third through hole is arranged at the middle position of the positioning block 15, a panel of the roller frame 7 close to the long hole 14 is provided with a jack, and a positioning pin 16 is simultaneously inserted into the third through hole, the long hole 14 and the jack.
When the device is installed, the roller frame 7 is moved to a required position according to different upward or downward displacement directions of the lower suspension furnace tube or other suspension objects during working, then the positioning block 15 is horizontally inserted into the two positioning racks 13, and the positioning pin 16 passes through the third through hole, the long hole 14 and the insertion hole in sequence to fix the position of the roller frame 7; after the installation is finished, before the device is formally started, the positioning block 15 is detached, the roller frame 7 can move upwards or downwards according to the set displacement direction, and the bottom end of the load bolt 11 provides a constant supporting force for a furnace tube or other suspended objects below in the process of moving up and down.
When in use, when the load bolt 11 is pulled by external force to move downwards, the load bolt 11 pulls the roller carrier 7 to move downwards, the roller carrier 7 drives the spring pull rod 3 to move downwards, thereby the spring pressure plate 2 moves downwards to compress the main spring 4, the elasticity of the main spring 4 increases linearly along with the continuous downward movement of the load bolt 11, meanwhile, the roller frame 7 drives the roller 6 to move downwards when moving downwards, the roller 6 rolls on the two plate springs 8 and compresses the plate springs 8 at the two sides simultaneously when moving downwards, the length of the force arm of the roller 6 compressing the plate springs 8 is linearly lengthened along with the continuous downward movement of the roller 6, the required compression force is linearly reduced, and the upward counter force provided by the plate spring 8 is linearly reduced, the pre-compression force of the main spring 4 and the plate spring 8 is adjusted during installation, the resultant force of the two can be kept constant, so that the output force of the load bolt 11 is constant. The magnitude of the precompression force of the main spring 4 can be achieved by adjusting the precompression length of the main spring 4. The left and right directions of the device are small in size, occupied space is small, the number of the furnace tubes which can be installed in the same space is large, and therefore the number of the furnace tubes can be maximized.
Claims (4)
1. The utility model provides a boiler tube constant force gallows which characterized in that: the device comprises a shell, wherein a middle partition plate (5) is fixed in the middle of the shell, the shell is divided into an upper shell (1) and a lower shell (10) by the middle partition plate (5), a main spring (4) is arranged in the upper shell (1), a spring pull rod (3) penetrates through the axis position of the main spring (4), a spring pressing plate (2) is arranged on the upper part of the spring pull rod (3), two ends of the main spring (4) are respectively abutted against the spring pressing plate (2) and the middle partition plate (5), the bottom of the spring pull rod (3) penetrates through the middle partition plate (5) and is fixedly connected with a roller frame (7) arranged in the lower shell (10), the bottom of the roller frame (7) is fixedly connected with one end of a load bolt (11), and the bottom end of the load bolt (11) penetrates through the bottom plate; the two sides of the roller carrier (7) are respectively connected with rollers (6) through roller shafts, two rollers (6) are respectively arranged between the two rollers and a side plate of the lower shell (10), the plate springs (8) are obliquely arranged from top to bottom towards the direction of a load bolt (11) through the side plate of the lower shell (10), the top ends of the plate springs (8) are fixedly connected with the side plate of the lower shell (10), and the two rollers (6) are respectively contacted with the corresponding plate springs (8).
2. The furnace tube constant force hanger of claim 1, wherein: the bottom end of the plate spring (8) is provided with a first through hole, the side plate of the lower shell (10) is provided with a second through hole, the adjusting bolt (9) penetrates through the first through hole and the second through hole simultaneously, and the end part of the adjusting bolt (9) is provided with an adjusting nut (17).
3. The furnace tube constant force hanger of claim 1, wherein: the bottom end of the load bolt (11) is connected with a basket nut (12) arranged below the lower shell (10).
4. The furnace tube constant force hanger of claim 1, wherein: a lateral plate of the lower shell (10) is provided with a strip hole (14) in the vertical direction, the outer walls of the lateral plates on the two sides of the strip hole (14) are respectively and fixedly provided with a positioning rack (13), a positioning block (15) is arranged between the two positioning racks (13), teeth matched with the two positioning racks (13) are arranged on the two sides of the positioning block (15), a third through hole is formed in the middle of the positioning block (15), a panel of the roller frame (7) close to the strip hole (14) is provided with a jack, and a positioning pin (16) is simultaneously inserted into the third through hole, the strip hole (14) and the jack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021093865.4U CN212407812U (en) | 2020-06-12 | 2020-06-12 | Furnace tube constant force hanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021093865.4U CN212407812U (en) | 2020-06-12 | 2020-06-12 | Furnace tube constant force hanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212407812U true CN212407812U (en) | 2021-01-26 |
Family
ID=74407132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021093865.4U Active CN212407812U (en) | 2020-06-12 | 2020-06-12 | Furnace tube constant force hanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212407812U (en) |
-
2020
- 2020-06-12 CN CN202021093865.4U patent/CN212407812U/en active Active
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