A large lifting distance truss for tunnel steel arch production

Abstract

The utility model discloses a truss with a large lifting distance for producing tunnel steel arch frames, and belongs to the technical field of steel arch frame production. The truss with a large lifting distance includes a frame, a first guide rail is arranged on the frame, the first guide rail is slidably connected to a moving frame, a second guide rail is arranged on the moving frame, the second guide rail is slidably connected to a lifting mechanism, the lifting mechanism includes a third driving mechanism, the third driving mechanism is connected to a sling for hoisting I-beams, and the third driving mechanism is used to drive the lifting of the sling. The truss with a large lifting distance can extract seamless I-beams that do not need to be installed with reinforcing plates from a conveyor line, and has a compact structure, is safe and reliable, and operates stably. It can be used by simply erecting it above the steel arch frame conveyor line, and occupies a small area, greatly saving the cost required for setting up additional screening equipment, and avoiding the influence of seamless I-beams that do not need to be installed with reinforcing plates on the reinforcing plate installation process.

Description

Technical Field

[0001] The utility model relates to a large lifting distance truss used for producing tunnel steel arch frames, belonging to the technical field of steel arch frame production. Background Art

[0002] Steel arch is a support measure that uses bent I-beams to reinforce underground projects. It can be combined with anchor rods, shotcrete and steel mesh to form a composite support arch, which is widely used in tunnels, subways, hydropower stations, underground caverns and other projects. During the production process of the steel arch, the entire I-beam needs to be cut to a size that meets the construction requirements, and after the cutting of the entire I-beam, there will inevitably be residual tailings. In order to avoid the waste of I-beam tailings, it is necessary to continue welding the I-beam tailings, that is, continue welding the I-beam tailings with the new entire I-beam, and install reinforcement plates at the joints to strengthen the connection strength of the two sections of I-beams at the joints, improve the quality of the steel arch products, and make them meet the construction requirements.

[0003] Therefore, in the entire production line of steel arches, it is not necessary to install reinforcement plates on all I-beams. Only those with joints need to be installed with reinforcement plates. Seamless I-beams do not need to be installed with reinforcement plates. Installing reinforcement plates is the last process in the entire production line of steel arches. All I-beams are transported to the process of installing reinforcement plates using a whole conveyor line. In order to avoid the influence of seamless I-beams that do not need to be installed with reinforcement plates on the process of installing reinforcement plates, seamless I-beams need to be extracted from the conveyor line and discharged together with the I-beams with joints that have been installed with reinforcement plates.

[0004] However, there is no device in the prior art for extracting seamless I-beams that do not need to be equipped with reinforcing plates from a conveyor line. Utility Model Content

[0005] In order to solve the above problems, the utility model provides a large lifting distance truss for the production of tunnel steel arch frames, which can extract seamless I-beams that do not need to be installed with reinforcement plates from the conveyor line, and has a compact structure, is safe and reliable, and operates stably. It can be used by simply being erected above the steel arch frame conveyor line, occupies a small area, greatly saves the cost of setting up additional screening equipment, and avoids the influence of seamless I-beams that do not need to be installed with reinforcement plates on the reinforcement plate installation process.

[0006] The utility model provides a large lifting distance truss for tunnel steel arch frame production, including a frame, a first guide rail is arranged on the frame, the first guide rail is slidably connected to a moving frame, a second guide rail is arranged on the moving frame, the second guide rail is slidably connected to a lifting mechanism, the lifting mechanism includes a third driving mechanism, the third driving mechanism is connected to a hoisting device for hoisting I-beams, and the third driving mechanism is used to drive the hoisting device to rise and fall.

[0007] In one embodiment of the utility model, the frame includes an upper beam and a plurality of columns fixedly connected to the lower part of the upper beam, and the first guide rail is laid on the upper beam.

[0008] In an embodiment of the present utility model, first fixing plates are fixedly connected to both sides of the movable frame, the first fixing plates are fixedly connected to first sliding blocks, and the first sliding blocks are slidably connected to the first guide rails.

[0009] In one embodiment of the utility model, the first fixed plate is also fixedly connected to a first driving mechanism, an output end of the first driving mechanism is connected to a first gear, the first driving mechanism is used to drive the first gear to rotate, a first rack is provided on a frame on one side of the first guide rail, and the first rack is meshed with the first gear.

[0010] In one embodiment of the present utility model, the third driving mechanism is fixedly connected to a second fixing plate, the second fixing plate is fixedly connected to a second sliding block, and the second sliding block is slidably connected to the second guide rail.

[0011] In one embodiment of the utility model, the movable frame is also provided with a second rack located on one side of the second guide rail; the second fixed plate is also fixedly connected to a second driving mechanism, the output end of the second driving mechanism is connected to a second gear, the second driving mechanism is used to drive the second gear to rotate, and the second rack is meshed with the second gear.

[0012] In an embodiment of the present utility model, the two lifting mechanisms are slidably connected to the second guide rail, and the ends of the two third driving mechanisms are connected via a telescopic rod.

[0013] In one implementation of the present utility model, the third driving mechanism is a multi-section electric cylinder.

[0014] In one embodiment of the utility model, the sling includes a connecting frame installed on the output end of the third driving mechanism, the connecting frame is fixedly connected to the fourth driving mechanism, the output end of the fourth driving mechanism is connected to a connecting plate, the connecting plate is fixedly connected to a guide rod, and the fourth driving mechanism is used to drive the connecting plate and the guide rod to perform telescopic movement.

[0015] In one embodiment of the utility model, an insertion opening for inserting the I-beam is provided at the lower end of the connecting frame, and the guide rod can extend into the insertion opening and abut against the connecting frame.

[0016] The utility model has the following beneficial effects:

[0017] The utility model can extract seamless I-beams that do not need to be installed with reinforcing plates from the conveyor line, and has a compact structure, is safe and reliable, and has stable operation. It can be used by simply being erected above the steel arch conveyor line, and occupies a small area, greatly saving the cost required for additional I-beam screening equipment, and avoiding the impact of seamless I-beams that do not need to be installed with reinforcing plates on the reinforcing plate installation process. Among them, the two lifting mechanisms slide on the second guide rail, and the spacing between the two third drive mechanisms can be adjusted to accommodate I-beams of different sizes. A telescopic rod is set at the end of the two third drive mechanisms, which can strengthen the connection strength between the two third drive mechanisms, making the lifting of the I-beam more stable and reliable, and improving the stability of equipment operation. The multi-section electric cylinder cooperates with the telescopic rod to achieve multi-stage telescopic grasping, which can reduce the height and improve safety and equipment operation stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A three-dimensional diagram of the large lifting distance truss provided by the utility model.

[0019] Figure 2 A three-dimensional diagram from another perspective of the large lifting distance truss provided by the utility model.

[0020] Figure 3 for Figure 2 A is an enlarged view of the middle image.

[0021] Figure 4 The present invention provides a three-dimensional diagram of the movable frame, lifting mechanism, sling and I-beam.

[0022] Figure 5 This is a three-dimensional diagram of the partial structure of the moving frame and the lifting mechanism provided by the utility model.

[0023] Figure 6 This is a three-dimensional diagram of the lifting mechanism and the sling provided by the utility model.

[0024] Figure 7 The present invention is a three-dimensional diagram of the sling provided by the utility model.

[0025] In the figure: 1. frame; 11. upper beam; 12. column; 13. first guide rail; 14. first rack; 2. movable frame; 21. second guide rail; 22. first fixed plate; 23. first driving mechanism; 24. first gear; 25. first slider; 26. second rack; 27. first slider; 3. lifting mechanism; 30. third driving mechanism; 31. second fixed plate; 32. second driving mechanism; 33. second gear; 34. second slider; 35. telescopic rod; 4. sling; 41. fourth driving mechanism; 42. connecting plate; 43. guide rod; 44. connecting frame; 45. insertion port; 5. I-beam. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] In the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0029] like Figure 1-7 As shown, this embodiment provides a large lifting distance truss for tunnel steel arch frame production, including a frame 1, a first guide rail 13 is arranged on the frame 1, the first guide rail 13 is slidably connected to a moving frame 2, a second guide rail 21 is arranged on the moving frame 2, the second guide rail 21 is slidably connected to a lifting mechanism 3, the lifting mechanism 3 includes a third driving mechanism 30, the third driving mechanism 30 is connected to a hoist 4 for hoisting an I-beam 5, and the third driving mechanism 30 is used to drive the hoist 4 to rise and fall.

[0030] In some embodiments, the frame 1 includes an upper beam 11 and a plurality of columns 12 fixedly connected to the lower portion of the upper beam 11, and the first guide rails 13 are laid on the upper beam 11. Preferably, two first guide rails 13 are laid on both sides of the top of the upper beam 11.

[0031] In some embodiments, both sides of the movable frame 2 are fixedly connected with a first fixed plate 22, the first fixed plate 22 is fixedly connected with a first driving mechanism 23 and a first slider 25, the first slider 25 is slidably connected to the first guide rail 13; the output end of the first driving mechanism 23 is connected with a first gear 24, and the first driving mechanism 23 is used to drive the first gear 24 to rotate; a first rack 14 is provided on the frame 1 on one side of the first guide rail 13, and the first rack 14 is meshed with the first gear 24.

[0032] In this embodiment, the first driving mechanism 23 drives the first gear 24 to rotate. Since the first rack 14 is meshed with the first gear 24, the rotating first gear 24 drives the entire mobile frame 2 to move on the first guide rail 13, so that the mobile frame 2 can perform linear reciprocating motion along the first guide rail 13. Exemplarily, the first driving mechanism 23 is a motor.

[0033] In some embodiments, the movable frame 2 is also provided with a second rack 26 located on one side of the second guide rail 21, the third driving mechanism 30 is fixedly connected to a second fixed plate 31, the second fixed plate 31 is fixedly connected to a second driving mechanism 32 and a second slider 34, and the second slider 34 is slidably connected to the second guide rail 21; the output end of the second driving mechanism 32 is connected to a second gear 33, and the second driving mechanism 32 is used to drive the second gear 33 to rotate, and the second rack 26 is meshed with the second gear 33.

[0034] In this embodiment, the second driving mechanism 32 drives the second gear 33 to rotate. Since the second rack 26 is meshed with the second gear 33, the rotating second gear 33 drives the entire lifting mechanism 3 to move on the second guide rail 21. Exemplarily, the second driving mechanism 32 is a motor.

[0035] In some embodiments, the two lifting mechanisms 3 are slidably connected to the second guide rail 21 , and the ends of the two third driving mechanisms 30 are connected via a telescopic rod 35 .

[0036] In this embodiment, the two lifting mechanisms 3 slide on the second guide rail 21, and the spacing between the two third driving mechanisms 30 can be adjusted to accommodate I-beams 5 of different sizes. A telescopic rod 35 is provided at the ends of the two third driving mechanisms 30, which can strengthen the connection strength between the two third driving mechanisms 30, making the lifting of the I-beam 5 more stable and reliable, and improving the stability of equipment operation.

[0037] In some embodiments, the third driving mechanism 30 is a multi-section electric cylinder. The multi-section electric cylinder cooperates with the telescopic rod 35 to achieve multi-stage telescopic grasping, which can reduce the height and improve the safety and stability of equipment operation.

[0038] In some embodiments, the sling 4 includes a connecting frame 44 installed on the output end of the third driving mechanism 30, the connecting frame 44 is fixedly connected to the fourth driving mechanism 41, the output end of the fourth driving mechanism 41 is connected to the connecting plate 42, the connecting plate 42 is fixedly connected to the guide rod 43, and the fourth driving mechanism 41 is used to drive the connecting plate 42 and the guide rod 43 to perform telescopic movement.

[0039] Furthermore, an insertion opening 45 for inserting the I-beam 5 is provided at the lower end of the connecting frame 44 , and the guide rod 43 can extend into the insertion opening 45 and abut against the connecting frame 44 .

[0040] In this embodiment, when the I-beam 5 needs to be hoisted, the fourth drive mechanism 41 drives the connecting plate 42 and the guide rod 43 to move outward, so that the guide rod 43 withdraws from the insertion port 45, and then the I-beam 5 can enter the connecting frame 44 from the insertion port 45. Then, the fourth drive mechanism 41 drives the connecting plate 42 and the guide rod 43 to move inward, so that the guide rod 43 is inserted into the insertion port 45 and abuts against the connecting frame 44. At this time, the guide rod 45 plays the role of carrying the I-beam 5, so that the I-beam 5 is locked in the hoist 4, which can effectively prevent the I-beam 5 from falling during the hoisting process, thereby improving the safety of use. Exemplarily, the fourth drive mechanism 41 is an electric cylinder, a pneumatic cylinder, etc.

[0041] When in use, the large lifting distance truss is erected above the steel arch conveyor line and is located above the process of attaching the reinforcement plate. When the I-beam 5 is fed from one side, the I-beam with joints that need to be attached with reinforcement plates will run normally until the process of attaching the reinforcement plates is attached, and the seamless I-beam that does not need to be attached with reinforcement plates will be lifted by the large lifting distance truss. Specifically, the sling 4 locks the seamless I-beam 5, and the third driving mechanism 30 contracts to lift the I-beam 5 so that the height of the lifted I-beam 5 is higher than the equipment used in the process of attaching the reinforcement plate. The moving frame 2 drives the I-beam 5 to move over the equipment used in the process of attaching the reinforcement plate and move to the rear of the frame 1. At this time, the third driving mechanism 30 puts down the I-beam 5, opens the sling 4, and the seamless I-beam 5 falls onto the discharge conveyor line. After the I-beam 5 with joints is attached with reinforcement plates, it is normally transported to the discharge conveyor line and is discharged together with the seamless I-beam 5. Among them, the distance between the two lifting mechanisms 3 can be adjusted, and the telescopic rod 35 can be adjusted accordingly to adapt to the hoisting of I-beams 5 of different sizes. The large lifting distance truss provided in this embodiment can extract seamless I-beams that do not need to be installed with reinforcement plates from the conveyor line, and has a compact structure, is safe and reliable, and has stable operation. It can be used by simply erecting it above the steel arch conveyor line, and occupies a small area, greatly saving the cost of setting up additional I-beam screening equipment, and avoiding the influence of seamless I-beams that do not need to be installed with reinforcement plates on the reinforcement plate installation process.

[0042] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0043] The above embodiments only express several implementation methods of the utility model, and the descriptions are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model.

[0044] The principles and implementation methods of the utility model are described in this article using specific examples. The description of the above examples is only used to help understand the method and core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model. Therefore, the scope of protection of the utility model patent shall be based on the attached claims.

Claims

1. A large lifting distance truss for tunnel steel arch production, characterized in that: It includes a frame, a first guide rail is arranged on the frame, the first guide rail is slidably connected to a moving frame, a second guide rail is arranged on the moving frame, the second guide rail is slidably connected to a lifting mechanism, the lifting mechanism includes a third driving mechanism, the third driving mechanism is connected to a hoisting device for hoisting I-beams, and the third driving mechanism is used to drive the hoisting device to rise and fall.

2. The large lifting distance truss for tunnel steel arch production according to claim 1 is characterized in that: The frame comprises an upper beam and a plurality of columns fixedly connected to the lower part of the upper beam, and the first guide rail is laid on the upper beam.

3. The large lifting distance truss for tunnel steel arch production according to claim 1 is characterized in that: Both sides of the moving frame are fixedly connected with a first fixing plate, the first fixing plate is fixedly connected with a first sliding block, and the first sliding block is slidably connected to the first guide rail.

4. The large lifting distance truss for tunnel steel arch production according to claim 3 is characterized in that: The first fixed plate is also fixedly connected to a first driving mechanism, an output end of the first driving mechanism is connected to a first gear, the first driving mechanism is used to drive the first gear to rotate, a first rack is provided on a frame on one side of the first guide rail, and the first rack is meshed with the first gear.

5. The large lifting distance truss for tunnel steel arch production according to claim 1 is characterized in that: The third driving mechanism is fixedly connected to a second fixing plate, the second fixing plate is fixedly connected to a second sliding block, and the second sliding block is slidably connected to the second guide rail.

6. The large lifting distance truss for tunnel steel arch production according to claim 5 is characterized in that: The movable frame is also provided with a second rack located on one side of the second guide rail; the second fixed plate is also fixedly connected to a second driving mechanism, the output end of the second driving mechanism is connected to a second gear, the second driving mechanism is used to drive the second gear to rotate, and the second rack is meshed with the second gear.

7. The large lifting distance truss for tunnel steel arch production according to claim 1 is characterized in that: The two lifting mechanisms are slidably connected to the second guide rail, and the ends of the two third driving mechanisms are connected via a telescopic rod.

8. The large lifting distance truss for tunnel steel arch production according to claim 1 is characterized in that: The third driving mechanism is a multi-section electric cylinder.

9. The large lifting distance truss for tunnel steel arch production according to claim 1 is characterized in that: The sling includes a connecting frame installed on the output end of the third driving mechanism, the connecting frame is fixedly connected to the fourth driving mechanism, the output end of the fourth driving mechanism is connected to a connecting plate, the connecting plate is fixedly connected to a guide rod, and the fourth driving mechanism is used to drive the connecting plate and the guide rod to perform telescopic movement.

10. The large lifting distance truss for tunnel steel arch production according to claim 9 is characterized in that: The lower end of the connecting frame is provided with an insertion opening for inserting the I-beam, and the guide rod can extend into the insertion opening and abut against the connecting frame.

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