CN215364511U - Ultra-long screw lifting appliance for large expansion joint - Google Patents
Ultra-long screw lifting appliance for large expansion joint Download PDFInfo
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- CN215364511U CN215364511U CN202121693244.4U CN202121693244U CN215364511U CN 215364511 U CN215364511 U CN 215364511U CN 202121693244 U CN202121693244 U CN 202121693244U CN 215364511 U CN215364511 U CN 215364511U
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Abstract
The utility model provides an ultra-long screw lifting appliance for a large expansion joint, which comprises a bottom bracket; the two vertical plates are fixedly arranged at the top of the bottom bracket and symmetrically arranged, and one sides of the two vertical plates are fixedly provided with U-shaped handles; the top plate is fixedly arranged at the tops of the two vertical plates, and a movable hole is formed in the top plate; the rodless cylinder is fixedly arranged at the top of the top plate; and the winch is fixedly arranged on the sliding block of the rodless cylinder. The utility model has the advantages of convenient hoisting of the ultra-long screw on the large expansion joint on the expansion joint, physical strength saving, simple operation, difficult deformation of the screw, convenient installation, time saving, installation efficiency improvement and safety.
Description
Technical Field
The utility model relates to the technical field of expansion joint manufacturing, in particular to an ultra-long screw lifting appliance for a large expansion joint.
Background
An expansion joint refers to a flexible element that effectively functions to compensate for axial deformation. For example, the expansion joint welded on the shell of the fixed tube-plate heat exchanger has large axial flexibility and easy deformation, can compensate the thermal expansion difference generated by the tube and the shell due to different wall temperatures, and reduces the axial load of the tube and the shell, thereby reducing the temperature difference stress of the tube, the tube plate and the shell and avoiding causing strength damage, instability damage and tube pull-out damage. The expansion joint has many kinds, and the common structures include wave, ring plate welding, clamping shell type and the like, wherein the wave expansion joint is most widely applied, and the ring plate welding expansion joint is only suitable for normal pressure or low pressure occasions.
The expansion joint is generally provided with four screw rods which are used for fixing pipeline parts on two sides of a corrugated expansion pipe part in the expansion joint, and the expansion joint is well fixed in the transportation process. The installation of the screw rod on the expansion joint generally comprises the steps of directly penetrating the screw rod through installation lugs of pipeline parts on two sides in the expansion joint and then fixing the screw rod through nuts. However, for the installation of the screw on the large expansion joint, the length of the screw is long, even exceeds 3 meters, the weight of the screw is heavy, and workers are dangerous if the screw is installed by ascending and erecting the screw, but the screw is lifted by a crane along the vertical direction, so that the screw is not easy to be fixed on a lifting rope, and if the screw is lifted along the horizontal direction, the screw is easy to deform due to gravity, and troubles are brought to the installation; and the screw rod is lifted by the crane, the screw rod is easy to swing along with the rope, the screw rod is not easy to be just inserted into the hole on the mounting lug, and the time is delayed. Therefore, it is necessary to provide a new ultra-long screw rod hanger for large expansion joints to solve the above technical problems.
SUMMERY OF THE UTILITY MODEL
The utility model solves the technical problem of providing the overlength screw lifting appliance for the large expansion joint, which can conveniently lift the overlength screw on the large expansion joint on the expansion joint, saves physical strength, has simpler operation, is not easy to deform, is more convenient to mount, saves time, improves the mounting efficiency, and is safer.
In order to solve the technical problem, the utility model provides an ultra-long screw rod lifting appliance for a large expansion joint, which comprises: a bottom bracket; the two vertical plates are fixedly arranged at the top of the bottom bracket and symmetrically arranged, and one sides of the two vertical plates are fixedly provided with U-shaped handles; the top plate is fixedly arranged at the tops of the two vertical plates, and a movable hole is formed in the top plate; the rodless cylinder is fixedly arranged at the top of the top plate; the winch is fixedly arranged on the sliding block of the rodless cylinder, the bottom end of a steel cable on the winch is fixedly connected with two hooks, and the steel cable of the winch penetrates through the movable hole; the special nut is fixedly provided with two hanging rings on two sides and is hung on the two hooks through the two hanging rings; the lifting mechanism is arranged above the bottom bracket; and the two clamping mechanisms are arranged on the lifting mechanism.
Preferably, the lifting mechanism comprises an installation box, a slide rod, a first threaded rod, a second threaded rod, a first connecting block, a second connecting block, two installation frames and two driving mechanisms, the installation box is fixedly installed at the top of the bottom support, the slide rod is fixedly installed at the top of the installation box and the bottom of the top plate, the first threaded rod and the second threaded rod are both rotated on the installation box, the top ends of the first threaded rod and the second threaded rod are both rotatably connected with the top plate, the bottom ends of the first threaded rod and the second threaded rod both extend into the installation box, the first connecting block is in threaded sleeve connection with the first threaded rod, the second connecting block is in threaded sleeve connection with the second threaded rod, the two installation frames are respectively and fixedly installed at one side of the first connecting block and the second connecting block, the two driving mechanisms are respectively arranged on the two mounting frames.
Preferably, the driving mechanism comprises a lifting motor, a main gear and a transmission gear, the lifting motor is fixedly installed on the inner wall of the bottom of the installation box, the main gear is fixedly installed on an output shaft of the lifting motor, the transmission gear is fixedly installed at the bottom end of the first threaded rod or the second threaded rod, and the transmission gear is meshed with the main gear.
Preferably, the clamping mechanism comprises a limiting rod, a bidirectional threaded rod, two moving plates, four clamping blocks, a clamping motor, a worm, two bevel gears and a worm wheel, the limiting rod is fixedly arranged on the inner walls of the two sides of the mounting frame, the bidirectional threaded rod is rotatably arranged on the two sides of the mounting frame, the two moving plates are symmetrically sleeved on the bidirectional threaded rod, the two moving plates are both in sliding connection with the limiting rod, the four clamping blocks are respectively and fixedly arranged on one side where the two moving plates are close to each other, the clamping motor is fixedly arranged on the inner wall of one side of the mounting frame, the worm is arranged on one side of the mounting frame, the two bevel gears are respectively and fixedly arranged on the output shaft of the clamping motor and one end of the worm, the two bevel gears are meshed with each other, and the worm wheel is fixedly arranged at one end of the bidirectional threaded rod, the worm wheel is meshed with the worm.
Preferably, one side fixed mounting of installing frame has two bearing framves, the worm with two the bearing frame is all rotated and is connected.
Preferably, a rubber pad is fixedly arranged on one side of the clamping block.
Has the advantages that: the bottom support, the vertical plate, the top plate, the rodless cylinder, the winch, the specially-made nut, the lifting mechanism and the two clamping mechanisms are matched, so that the ultra-long screw rod on the large expansion joint can be conveniently hoisted on the expansion joint, the physical power is saved, the operation is simpler, the screw rod is not easy to deform, the installation is more convenient, the time is saved, the installation efficiency is improved, and the installation is safer.
Drawings
FIG. 1 is a schematic structural diagram of a preferred embodiment of an ultra-long screw spreader for large expansion joints according to the present invention;
FIG. 2 is an enlarged view of portion A of FIG. 1;
FIG. 3 is an enlarged view of portion B of FIG. 1;
FIG. 4 is an enlarged view of portion C of FIG. 1;
FIG. 5 is a schematic top sectional view of the clamping mechanism of the present invention;
FIG. 6 is a schematic top view of the bottom bracket of the present invention.
Reference numbers in the figures: 1. a bottom bracket; 2. a vertical plate; 3. a top plate; 4. a rodless cylinder; 5. a winch; 6. specially manufacturing a nut; 7. installing a box; 8. a slide bar; 9. a first threaded rod; 10. a second threaded rod; 11. a lifting motor; 12. a main gear; 13. a transmission gear; 14. a first connection block; 15. a second connecting block; 16. installing a frame; 17. a limiting rod; 18. a bidirectional threaded rod; 19. moving the plate; 20. a clamping block; 21. a clamping motor; 22. a worm; 23. a bevel gear; 24. a worm gear.
Detailed Description
The utility model is further described with reference to the following figures and embodiments.
Referring to fig. 1-6, fig. 1 is a schematic structural diagram of an ultra-long screw rod hanger for large expansion joints according to a preferred embodiment of the present invention; FIG. 2 is an enlarged view of portion A of FIG. 1; FIG. 3 is an enlarged view of portion B of FIG. 1; FIG. 4 is an enlarged view of portion C of FIG. 1; FIG. 5 is a schematic top sectional view of the clamping mechanism of the present invention; FIG. 6 is a schematic top view of the bottom bracket of the present invention. A overlength screw rod hoist for large-scale expansion joint includes: a bottom bracket 1; the two vertical plates 2 are fixedly arranged at the top of the bottom bracket 1, the two vertical plates 2 are symmetrically arranged, and one sides of the two vertical plates 2 are fixedly provided with U-shaped handles; the top plate 3 is fixedly arranged at the tops of the two vertical plates 2, and a movable hole is formed in the top plate 3; the rodless cylinder 4 is fixedly arranged on the top of the top plate 3; the winch 5 is fixedly arranged on the sliding block of the rodless cylinder 4, the bottom end of a steel cable on the winch 5 is fixedly connected with two hooks, and the steel cable of the winch 5 penetrates through the movable hole; the special nut 6 is fixedly provided with two hanging rings on two sides of the special nut 6, and the special nut 6 is hung on the two hooks through the two hanging rings; the lifting mechanism is arranged above the bottom bracket 1; and the two clamping mechanisms are arranged on the lifting mechanism.
The lifting mechanism comprises an installation box 7, a slide rod 8, a first threaded rod 9, a second threaded rod 10, a first connecting block 14, a second connecting block 15, two installation frames 10 and two driving mechanisms, the installation box 7 is fixedly installed at the top of the bottom support 1, the slide rod 8 is fixedly installed at the top of the installation box 7 and the bottom of the top plate 3, the first threaded rod 9 and the second threaded rod 10 are both rotated on the installation box 7, the top ends of the first threaded rod 9 and the second threaded rod 10 are both rotatably connected with the top plate 3, the bottom ends of the first threaded rod 9 and the second threaded rod 10 both extend into the installation box 7, the first connecting block 14 is sleeved on the first threaded rod 9, the second connecting block 15 is sleeved on the second threaded rod 10, and the first threaded rod 9 and the second threaded rod 10 are both in sliding connection with the slide rod 8, two the installing frame 16 is fixed mounting respectively in one side of first connecting block 14 and second connecting block 15, and two actuating mechanism set up respectively two on the installing frame 16, can make two fixture go up and down through going up and down to conveniently make the stable decline of screw rod and install.
The lifting mechanism comprises a lifting motor 11, a main gear 12 and a transmission gear 13, wherein the lifting motor 11 is fixedly installed on the inner wall of the bottom of the installation box 7, the main gear 12 is fixedly installed on an output shaft of the lifting motor 11, the transmission gear 13 is fixedly installed at the bottom end of the first threaded rod 9 or the second threaded rod 10, the transmission gear 13 is meshed with the main gear 12, and the two driving mechanisms can respectively drive the first threaded rod 9 and the second threaded rod 10 to rotate.
The clamping mechanism comprises a limiting rod 17, a two-way threaded rod 18, two moving plates 19, four clamping blocks 20, a clamping motor 21, a worm 22, two bevel gears 23 and a worm wheel 24, the limiting rod 17 is fixedly installed on the inner walls of the two sides of the installation frame 16, the two-way threaded rod 18 is rotatably installed on the two sides of the installation frame 16, the two moving plates 19 are symmetrically sleeved on the two-way threaded rod 18 in a threaded manner, the two moving plates 19 are both in sliding connection with the limiting rod 17, the four clamping blocks 20 are respectively and fixedly installed on one side where the two moving plates 19 are close to each other, the clamping motor 21 is fixedly installed on the inner wall of one side of the installation frame 16, the worm 22 is arranged on one side of the installation frame 16, the two bevel gears 23 are respectively and fixedly installed on the output shaft of the clamping motor 21 and one end of the worm 22, and two bevel gears 23 are meshed with each other, the worm wheel 24 is fixedly arranged at one end of the bidirectional threaded rod 18, the worm wheel 24 is meshed with the worm 22, and the screw rod can be fixed through a clamping mechanism.
One side fixed mounting of installing frame 16 has two bearing frames, worm 22 with two the bearing frame is all rotated and is connected, can support worm 22 to make its steady rotation.
A rubber pad is fixedly arranged on one side of the clamping block 20, so that the screw can be clamped more tightly, and the damage to antirust paint on the surface of the screw is avoided.
The working principle of the ultra-long screw lifting appliance for the large expansion joint provided by the utility model is as follows:
the method comprises the following steps: firstly, a specially-made nut 6 is installed at one end of a screw rod to be hoisted in a threaded mode, then a steel cable on the winch 5 is put down by starting the winch 5, two hooks at the bottom end of the steel cable are hung on hanging rings on the specially-made nut 6, then the steel cable is wound up by the winch 5, and the screw rod is hoisted;
step two: manually holding the screw to stabilize, driving a worm 22 to rotate by starting a clamping motor 21 on the clamping mechanism to rotate in a positive direction, driving a bidirectional threaded rod 18 to rotate by two meshed conical gears 23, enabling two moving plates 19 to approach each other, driving four clamping blocks 20 to approach each other in pairs by the two moving plates 19, and clamping the screw by the four clamping blocks 20, so that the clamping blocks 20 on the two clamping mechanisms clamp the screw;
step three: releasing the steel cable through the winch 5, unscrewing the specially-made nut 6, taking down the hanging ring and the specially-made nut 6 from the hook, then starting the winch 5 to contract the steel cable above the top plate 3, starting the rodless cylinder 4, and moving the winch 5 to the other end of the rodless cylinder 4;
step four: the two lifting motors 11 are started to rotate forwards, the first threaded rod 9 and the second threaded rod 10 are rotated through the main gear 12 and the transmission gear 13, the first connecting block 14 and the second connecting block 15 are moved upwards, the two mounting frames 16 are driven to move upwards, the screw rod is driven to move upwards through the two clamping mechanisms until the height of the bottom end of the screw rod is higher than that of a mounting lug on the expansion joint, and then the two U-shaped handles are pushed to push the device, so that the screw rod is positioned right above the mounting lug on the expansion joint, which is higher in position;
step five: starting a clamping motor 21 on a clamping mechanism connected with the second connecting block 15 to rotate reversely to enable a clamping block 20 on the clamping mechanism to loosen a screw rod, starting a lifting motor 11 in a driving mechanism connected with the first threaded rod 9 to rotate reversely to enable a first connecting block 14 to drive the corresponding clamping mechanism to descend through a corresponding mounting frame 16 so as to enable the screw rod to descend and penetrate through a hole in a mounting lug positioned at a higher position on the expansion joint, then starting the clamping motor 21 on the clamping mechanism connected with the second connecting block 15 to rotate forwards to enable the clamping block 20 on the clamping mechanism to clamp the screw rod, then starting the clamping motor 21 on the clamping mechanism connected with the first connecting block 14 to rotate backwards to enable the clamping block 20 on the clamping mechanism to loosen the screw rod, then starting the lifting motor 11 in the driving mechanism connected with the first threaded rod 9 to rotate forwards to enable the first connecting block 14 to drive the corresponding clamping mechanism to ascend through the corresponding mounting frame 16, then, a clamping motor 21 on a clamping mechanism connected with the first connecting block 14 is started to rotate positively, so that a clamping block 20 on the clamping mechanism clamps the screw rod tightly;
and then repeating the fifth step, so that the screw rod descends and penetrates through the two mounting lugs on the expansion joint, then fixing the screw rod on the mounting lugs of the expansion joint by using the nuts, then loosening all the clamping blocks 20, removing the device, and mounting other screw rods on the expansion joint in the mode.
The bottom support 1, the vertical plate 2, the top plate 3, the rodless cylinder 4, the winch 5, the specially-made nut 6, the lifting mechanism and the two clamping mechanisms are matched, so that an ultra-long screw rod on a large expansion joint can be conveniently hoisted on the expansion joint, the physical power is saved, the operation is simpler, the screw rod is not easy to deform, the installation is more convenient, the time is saved, the installation efficiency is improved, and the safety is higher.
Claims (6)
1. An overlength screw hoist for large-scale expansion joint which characterized in that includes:
a bottom bracket;
the two vertical plates are fixedly arranged at the top of the bottom bracket and symmetrically arranged, and one sides of the two vertical plates are fixedly provided with U-shaped handles;
the top plate is fixedly arranged at the tops of the two vertical plates, and a movable hole is formed in the top plate;
the rodless cylinder is fixedly arranged at the top of the top plate;
the winch is fixedly arranged on the sliding block of the rodless cylinder, the bottom end of a steel cable on the winch is fixedly connected with two hooks, and the steel cable of the winch penetrates through the movable hole;
the special nut is fixedly provided with two hanging rings on two sides and is hung on the two hooks through the two hanging rings;
the lifting mechanism is arranged above the bottom bracket;
and the two clamping mechanisms are arranged on the lifting mechanism.
2. The ultra-long screw lifting appliance for the large expansion joint as claimed in claim 1, wherein the lifting mechanism comprises an installation box, a slide rod, a first threaded rod, a second threaded rod, a first connecting block, a second connecting block, two installation frames and two driving mechanisms, the installation box is fixedly installed at the top of the bottom support, the slide rod is fixedly installed at the top of the installation box and the bottom of the top plate, the first threaded rod and the second threaded rod both rotate on the installation box, the top ends of the first threaded rod and the second threaded rod are both rotatably connected with the top plate, the bottom ends of the first threaded rod and the second threaded rod both extend into the installation box, the first connecting block is sleeved on the first threaded rod in a threaded manner, the second connecting block is sleeved on the second threaded rod in a threaded manner, and the first threaded rod and the second threaded rod are in sliding connection with the sliding rod, the two mounting frames are fixedly mounted on one sides of the first connecting block and the second connecting block respectively, and the two driving mechanisms are arranged on the two mounting frames respectively.
3. The overlength screw rod hoist for large-scale expansion joint of claim 2, characterized in that, the actuating mechanism elevator motor, master gear and drive gear, the elevator motor is fixed mounting on the bottom inner wall of the install bin, the master gear is fixed mounting on the output shaft of the elevator motor, the drive gear is fixed mounting in the bottom of first threaded rod or second threaded rod, the drive gear meshes with the master gear.
4. The ultra-long screw rod lifting appliance for the large expansion joint as recited in claim 2, wherein the clamping mechanism comprises a limiting rod, a two-way threaded rod, two moving plates, four clamping blocks, a clamping motor, a worm, two bevel gears and a worm wheel, the limiting rod is fixedly mounted on the inner walls of the two sides of the mounting frame, the two-way threaded rod is rotatably mounted on the two sides of the mounting frame, the two moving plates are symmetrically and threadedly sleeved on the two-way threaded rod, the two moving plates are both slidably connected with the limiting rod, the four clamping blocks are respectively and fixedly mounted on the mutually close sides of the two moving plates, the clamping motor is fixedly mounted on the inner wall of one side of the mounting frame, the worm is arranged on one side of the mounting frame, and the two bevel gears are respectively and fixedly mounted on the output shaft of the clamping motor and one end of the worm, and two bevel gears are meshed with each other, a worm wheel is fixedly installed at one end of the bidirectional threaded rod, and the worm wheel is meshed with the worm.
5. The overlength screw rod hoist for large-scale expansion joint of claim 4, characterized in that, two bearing frames are fixedly installed on one side of the installing frame, the worm is connected with two said bearing frames in a rotating way.
6. The overlength screw rod hoist for large-scale expansion joint of claim 4, characterized in that, a rubber pad is fixedly installed on one side of the clamp splice.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121693244.4U CN215364511U (en) | 2021-07-25 | 2021-07-25 | Ultra-long screw lifting appliance for large expansion joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121693244.4U CN215364511U (en) | 2021-07-25 | 2021-07-25 | Ultra-long screw lifting appliance for large expansion joint |
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| Publication Number | Publication Date |
|---|---|
| CN215364511U true CN215364511U (en) | 2021-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121693244.4U Active CN215364511U (en) | 2021-07-25 | 2021-07-25 | Ultra-long screw lifting appliance for large expansion joint |
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| CN (1) | CN215364511U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114905243A (en) * | 2022-03-01 | 2022-08-16 | 芜湖卧龙家用电机有限公司 | Automatic assembling device for motor stator and bearing |
-
2021
- 2021-07-25 CN CN202121693244.4U patent/CN215364511U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114905243A (en) * | 2022-03-01 | 2022-08-16 | 芜湖卧龙家用电机有限公司 | Automatic assembling device for motor stator and bearing |
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