A lifting device for engineering construction

Abstract

The present invention discloses a lifting device for engineering construction, and relates to the technical field of hoisting machinery. The present invention includes a frame, a motor and a reducer, a reel is rotatably installed on the top of the frame, a mounting shaft is fixedly installed inside the reel, a rocker arm is sleeved at both ends of the mounting shaft, a sliding opening is penetrated inside the right side of the rocker arm, a sliding box is slidably connected inside the sliding opening, a clamping rod is slidably connected inside the sliding box, a retaining spring is arranged between the clamping rod and the inner wall of the sliding box, and one end of the clamping rod close to the inner side of the rocker arm is triangular in design, and a wire arrangement assembly is arranged between the two groups of the rocker arms. The present invention utilizes the rocker arm and the wire arrangement assembly and the rocker arm to realize wire arrangement, tension adjustment and braking at the same time, and only one group of wire arrangement assembly is needed to realize it. By adopting a lightweight structural design, the weight of the winch is reduced, its mobility and flexibility are improved, and it can adapt to a wider range of working scenarios.

Description

Technical Field

[0001] The invention relates to the technical field of hoisting machinery, and in particular to a lifting device for engineering construction. Background Art

[0002] A winch is a small and light lifting device that uses a drum to wind a wire rope or chain to lift or pull heavy objects. It is also called a winch. The winch can lift vertically, pull horizontally or tilt heavy objects. There are three types of winches: manual winches, electric winches and hydraulic winches. Among them, electric winches are the most commonly used. They are mainly powered by an electric motor and use a driving device to rotate the drum.

[0003] At present, in order to ensure the safety of operation, the winch usually needs to be equipped with a braking system, and the electromagnetic brake and the locking brake are used to control the winch to not run freely under no power. In the design process of the winch, it is necessary to avoid the phenomenon of tangled wire ropes and biting wire ropes. Usually, a wire arranger is configured to arrange the wire rope. At the same time, the patent (application number: CN202311111428.9) discloses an automatic tensioning mechanism for the winch, including a frame with a slide groove, a mounting seat, and a tensioning pulley, which is installed in the slide groove of the frame, and the pulley spring arranged in the mounting seat and the tensioning pulley are elastically matched along the slide groove to tension the rope sleeved on the tensioning pulley. A trigger plate is also installed on the end of the shaft of the tensioning pulley to form a positional match with the proximity switch installed on the frame. An additional tensioning mechanism is set to realize the tightness of the wire rope winding. In order to ensure the operation of the winch and the stability of the wire arrangement, these mechanisms are very important, but they will make the overall structure of the winch bulky and inconvenient to move. Summary of the invention

[0004] The purpose of the present invention is to solve the above problems and provide a lifting device for engineering construction.

[0005] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions:

[0006] A lifting device for engineering construction includes a frame, a motor and a reducer, a drum is rotatably mounted on the top of the frame, a mounting shaft is fixedly mounted inside the drum, the left end of the mounting shaft is connected to the output shaft of the reducer, a clamping groove and a pulling groove are provided on the right end of the mounting shaft, the clamping groove and the pulling groove are both annularly designed, and the clamping groove is located on the left side of the pulling groove;

[0007] Both ends of the installation shaft are sleeved with swing rods, and a stall sensor is fixedly installed on the outer side of the left swing rod, and the stall sensor is used to detect the rotation speed of the installation shaft. A sliding opening is opened inside the right swing rod, and the length of the sliding opening is the same as the sum of the lengths of the clamping slot and the pull slot. A sliding box is slidably connected inside the sliding opening, and the sliding box can slide along the sliding opening. A clamping rod is slidably connected inside the sliding box, and a retaining spring is arranged between the clamping rod and the inner wall of the sliding box. The end of the clamping rod close to the inner side of the swing rod is triangular in design, and the clamping rod can be fully inserted into the clamping slot, and only the triangular end can be inserted into the pull slot;

[0008] A cable assembly is arranged between the two groups of swing rods.

[0009] Furthermore, an electromagnet is fixedly installed on the left side of the slide, and the stall sensor controls the on and off of the electromagnet through a PLC controller. The slide box can be attracted by magnetic force, and a tension spring is arranged between the slide box and the inner wall on the right side of the slide.

[0010] Furthermore, a pull rod is provided on a side of the clamping rod away from the swing rod, and the pull rod passes through the slide box.

[0011] Furthermore, the cable arrangement assembly includes a guide rod fixedly installed between the two groups of rocker arms, and also includes a driving rod rotatably installed between the two groups of rocker arms, two groups of spiral guide grooves are provided on the outer side of the driving rod, the rotation directions of the two groups of spiral guide grooves are opposite, and the head and tail ends of the two groups of spiral guide grooves are connected to each other, a cable arrangement frame is sleeved on the outer side of the driving rod, two groups of guide wheels are rotatably installed on the top of the cable arrangement frame, and the wire rope can pass through the two groups of guide wheels, and a driving block is provided inside the cable arrangement frame, the driving block is sleeved on the driving rod, and a driving protrusion is provided on the inner wall of the driving block, and the driving protrusion is clamped in the spiral guide groove, and a second rod hole is provided inside the cable arrangement frame, and the guide rod passes through the second rod hole.

[0012] Furthermore, a driven sprocket is fixedly mounted on the right end of the driving rod, a driving sprocket is fixedly mounted on the right end of the mounting shaft, and the driving sprocket is connected to the driven sprocket via a chain transmission.

[0013] Furthermore, a positioning slot is provided inside the wire rack, the driving block can be inserted into the positioning slot, the driving block is a rectangular parallelepiped, first rod holes are provided at both ends of the wire rack, the first rod holes penetrate into the positioning slot, and the driving rod can pass through the first rod holes.

[0014] Furthermore, bristles are arranged inside the first rod hole.

[0015] Furthermore, a bracket is welded on the top of the frame, a rope guide rod is rotatably installed inside the bracket, and the rope guide rod is lower than the cable arrangement assembly.

[0016] Furthermore, the frame is formed by welding square tubes.

[0017] The beneficial effects of the present invention are as follows:

[0018] The present invention drives the card rod to move into the slot through the sliding box. When the drum reels in the wire rope, the card rod and the clamping spring give the swing arm an upward swinging force, so that the swing arm and the wire arrangement assembly always give the wire rope a certain tensioning force, and then the card rod moves into the clamping slot, so that the wire arrangement assembly can swing synchronously with the drum. When the wire arrangement assembly swings onto the frame, it will limit the rotation of the drum. Therefore, the swing arm and the wire arrangement assembly can realize wire arrangement, tension adjustment and braking at the same time, and only one set of wire arrangement assembly is needed to realize it. By adopting a lightweight structural design, the weight of the winch is reduced, the mobility and flexibility of the winch are improved, and it can adapt to a wider range of working scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The present invention is a schematic diagram of the whole Figure 1 ;

[0020] Figure 2 The present invention is a schematic diagram of the whole Figure 2 ;

[0021] Figure 3 The present invention is a schematic diagram of the reel, swing rod and cable assembly Figure 1 ;

[0022] Figure 4 The present invention is a schematic diagram of the reel, swing rod and cable assembly Figure 2 ;

[0023] Figure 5 It is a schematic diagram of the reel of the present invention;

[0024] Figure 6 It is a schematic diagram of the swing rod and the cable assembly of the present invention;

[0025] Figure 7 The present invention Figure 6 The enlarged schematic diagram of part A in the middle;

[0026] Figure 8 It is a schematic diagram of a cable rack of the present invention.

[0027] Figure numerals: 1, frame; 2, motor; 3, reducer; 4, reel; 41, mounting shaft; 42, driving sprocket; 43, pull slot; 44, clamping slot; 5, rocker arm; 51, stall sensor; 52, slide; 53, electromagnet; 54, slide box; 55, tension spring; 56, clamping rod; 57, clamping spring; 58, pull rod; 6, cable arrangement assembly; 61, driving rod; 62, guide rod; 63, driven sprocket; 64, cable arrangement rack; 65, guide wheel; 66, first rod hole; 67, second rod hole; 68, positioning slot; 69, driving block; 610, driving protrusion; 7, guide rope rod. DETAILED DESCRIPTION

[0028] To make the purpose, technical solution and advantages of the embodiments of the present invention more clear, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0029] A lifting device for engineering construction according to a preferred embodiment of the present invention will be described in detail below.

[0030] Embodiment 1, as Figure 1-Figure 8 As shown, a lifting device for engineering construction includes a frame 1, a motor 2 and a reducer 3. A reel 4 is rotatably mounted on the top of the frame 1, and a mounting shaft 41 is fixedly mounted inside the reel 4. The left end of the mounting shaft 41 is connected to the output shaft of the reducer 3. A clamping groove 44 and a pulling groove 43 are provided at the right end of the mounting shaft 41. Both the clamping groove 44 and the pulling groove 43 are annular in design, and the clamping groove 44 is located on the left side of the pulling groove 43.

[0031] Both ends of the installation shaft 41 are sleeved with a swing rod 5. A stall sensor 51 is fixedly installed on the outer side of the left swing rod 5. The stall sensor 51 is used to detect the rotation speed of the installation shaft 41. A sliding opening 52 is opened inside the right swing rod 5. The length of the sliding opening 52 is the same as the length of the card slot 44 and the pull slot 43. A sliding box 54 is slidably connected inside the sliding opening 52. The sliding box 54 can slide along the sliding opening 52. A clamping rod 56 is slidably connected inside the sliding box 54. A retaining spring 57 is arranged between the clamping rod 56 and the inner wall of the sliding box 54. The end of the clamping rod 56 close to the inner side of the swing rod 5 is triangular in design. The clamping rod 56 can be fully inserted into the card slot 44, and only the triangular end can be inserted into the pull slot 43.

[0032] A cable assembly 6 is arranged between the two groups of swing rods 5 .

[0033] In this embodiment, there is no restriction on the structure of the cable arrangement assembly 6, and any existing cable arrangement device can be used, and it only needs to be installed between the two sets of swing rods 5. At the same time, there is no restriction on the drive of the slide box 54, and any existing linear drive can be used;

[0034] When arranging the wire, the control slide box 54 slides to the right, so that the triangular end of the clamping rod 56 is inserted into the slot 43, and then the motor 2 is started. The motor 2 drives the reel 4 to rotate through the reducer 3, and the reel 4 reels the wire rope. The wire rope is evenly wound on the reel 4 under the action of the wire arranging assembly 6. At the same time, the reel 4 drives the installation shaft 41 to rotate, and the installation shaft 41 gives the swing rod 5 a driving force to swing upward through the slot 43 and the clamping rod 56. The swing rod 5 drives the wire arranging assembly 6 to swing upward, and the wire arranging assembly 6 tightens the wire rope. When the tension of the wire rope reaches the threshold, the limiting force of the wire rope on the swing rod 5 is greater than the elastic force of the retaining spring 57, the drum 4 rotates relative to the swing rod 5, the drum 4 drives the installation shaft 41 to rotate relative to the swing rod 5, the installation shaft 41 pushes the clamping rod 56 to slide into the slide box 54 through the slot 43, the clamping rod 56 squeezes the retaining spring 57, the wire rope tension is too small, the swing rod 5 will swing upwards at a certain angle, if the wire rope tension is too much, the swing rod 5 will swing downwards at a certain angle, the wire rope tension can be adjusted while the wire is arranged;

[0035] After the cable arrangement is completed, the control slide box 54 slides to the left, and the slide box 54 drives the clamping rod 56 away from the slot 43 and moves to the position of the clamping groove 44. Under the action of the clamping spring 57, the clamping rod 56 is completely inserted into the slot 44. At this time, the swing rod 5 is fixedly installed on the installation shaft 41. At this time, the swing rod 5 and the cable arrangement assembly 6 cannot swing downward under the action of the frame 1. The swing rod 5 restricts the drum 4 from loosening the wire rope to achieve the braking function. In actual use, since the hoisting end has a certain gravity, the braking is mainly to prevent the drum 4 from loosening the wire rope. Therefore, through the cooperation of the swing rod 5 and the cable arrangement assembly 6, cable arrangement, tension adjustment and braking can be achieved at the same time. By adopting a lightweight structural design, the weight of the winch is reduced, its mobility and flexibility are improved, and it can adapt to a wider range of working scenarios.

[0036] If the lifting end suddenly falls downward quickly during the cable arrangement process, the wire rope drives the drum 4 to rotate quickly, and the drum 4 drives the installation shaft 41 to rotate quickly. The stall sensor 51 detects the rotation of the installation shaft 41. After the rotation speed reaches the threshold, the slide box 54 automatically slides to the left, so that the swing arm 5 and the installation shaft 41 are fixedly installed, and then automatic stall protection can be performed, which is highly safe to use.

[0037] Furthermore, the frame 1 is formed by welding square tubes, which can further reduce the weight of the device.

[0038] Embodiment 2 provides a slide box 54 control structure;

[0039] like Figure 6 , Figure 7 As shown, an electromagnet 53 is fixedly installed on the left side of the sliding opening 52, and the stall sensor 51 controls the power on and off of the electromagnet 53 through the PLC controller. The sliding box 54 can be attracted by magnetic force, and a tension spring 55 is arranged between the sliding box 54 and the inner wall on the right side of the sliding opening 52.

[0040] The electromagnet 53 is energized by the PLC controller, and the electromagnet 53 generates magnetic force, and the electromagnet 53 drives the slide box 54 to slide to the left, and the slide box 54 drives the clamping rod 56 away from the slot 43 and moves to the position of the clamping slot 44. Under the action of the clamping spring 57, the clamping rod 56 is completely inserted into the slot 44. At this time, the swing rod 5 is fixedly installed on the installation shaft 41. Due to the limitation of the clamping rod 56, even if the electromagnet 53 is powered off, the slide box 54 will not reset. Therefore, there is no need to keep the electromagnet 53 powered on, and it only needs to be triggered briefly, which saves electricity. At the same time, the electromagnet 53 is used to provide linear drive, which can meet the requirements of lightweight design of the overall device.

[0041] If the lifting end suddenly falls downward quickly during the cable arrangement process, the wire rope drives the drum 4 to rotate quickly, and the drum 4 drives the installation shaft 41 to rotate quickly. The stall sensor 51 detects the rotation of the installation shaft 41. After the speed reaches the threshold, the PLC controller controls the electromagnet 53 to energize, and the electromagnet 53 generates a magnetic force. The electromagnet 53 drives the slide box 54 to slide to the left, and the slide box 54 drives the clamping rod 56 away from the slot 43 and moves to the position of the clamping slot 44. Under the action of the retaining spring 57, the clamping rod 56 is fully inserted into the slot 44. At this time, the rocker arm 5 is fixedly installed on the installation shaft 41, so that automatic stall protection can be performed, and the use safety is high.

[0042] Furthermore, a pull rod 58 is provided on the side of the locking rod 56 away from the rocker arm 5, and the pull rod 58 passes through the slide box 54. Through this design, when the cable needs to be arranged again after stalling, the pull rod 58 can be used to pull the locking rod 56 out of the locking slot 44 without the need for driving, thereby meeting the requirements of the lightweight design of the overall device.

[0043] Embodiment 3 provides a cable assembly 6 structure;

[0044] like Figure 3-Figure 8 As shown, the wire arrangement assembly 6 includes a guide rod 62 fixedly installed between the two groups of swing rods 5, and also includes a driving rod 61 rotatably installed between the two groups of swing rods 5. Two groups of spiral guide grooves are provided on the outer side of the driving rod 61. The rotation directions of the two groups of spiral guide grooves are opposite, and the head and tail ends of the two groups of spiral guide grooves are connected to each other. A wire arrangement frame 64 is sleeved on the outer side of the driving rod 61. Two groups of guide wheels 65 are rotatably installed on the top of the wire arrangement frame 64. The wire rope can pass through the two groups of guide wheels 65. A driving block 69 is provided inside the wire arrangement frame 64. The driving block 69 is sleeved on the driving rod 61. The inner wall of the driving block 69 is provided with a driving protrusion 610. The driving protrusion 610 is clamped in the spiral guide groove. A second rod hole 67 is provided inside the wire arrangement frame 64, and the guide rod 62 passes through the second rod hole 67.

[0045] Furthermore, a driven sprocket 63 is fixedly mounted on the right end of the driving rod 61 , a driving sprocket 42 is fixedly mounted on the right end of the mounting shaft 41 , and the driving sprocket 42 is connected to the driven sprocket 63 through a chain transmission.

[0046] When arranging the wire, the reel 4 winds up the wire rope, and the wire rope passes between the two sets of guide wheels 65. At the same time, the reel 4 drives the installation shaft 41 to rotate, and the installation shaft 41 drives the driving sprocket 42 to rotate. The driving sprocket 42 drives the driven sprocket 63 to rotate through the chain, and the driven sprocket 63 drives the driving rod 61 to rotate. The driving rod 61 drives the driving block 69 to move through the spiral guide groove and the driving protrusion 610. The driving block 69 drives the wire arranging frame 64 to slide along the guide rod 62, and the wire arranging frame 64 drives the wire rope to move, and the wire rope is arranged. When one layer of wire arrangement is completed, the driving block 69 moves to the tail end where the two sets of spiral guide grooves are connected. As the driving rod 61 continues to rotate, the driving protrusion 610 enters another set of spiral guide grooves of the opposite direction, and the driving protrusion 610 drives the driving block 69 to move in the opposite direction through the spiral guide groove, and the driving block 69 drives the wire arranging frame 64 to move in the opposite direction, thereby stably completing the wire arrangement;

[0047] By setting the driven sprocket 63 larger than the driving sprocket 42, the wire arrangement frame 64 will be within the wire diameter distance after the reel 4 rotates one circle. Since the number of winding circles of the reel 4 is limited, the winding speed of the reel 4 is not fast, and there is a certain play distance between the wire rope and the inner wall of the wire arrangement frame 64, the wire arrangement can be carried out stably even after the number of winding circles increases. The wire arrangement component 6 of this embodiment does not require an additional drive, and can meet the requirements of lightweight design of the overall device.

[0048] Embodiment 4, based on embodiment 3, provides a wire rack 64 structure;

[0049] like Figure 8 As shown, a positioning slot 68 is provided inside the wire rack 64, and a driving block 69 can be inserted into the positioning slot 68. The driving block 69 is a rectangular parallelepiped. First rod holes 66 are provided at both ends of the wire rack 64. The first rod holes 66 penetrate into the positioning slot 68, and the driving rod 61 can pass through the first rod hole 66.

[0050] With this design, the assembly can be completed by simply inserting the driving block 69 into the positioning slot 68 and then passing the driving rod 61 through the first rod hole 66 and the driving block 69 , which makes installation and disassembly easy.

[0051] Furthermore, bristles are arranged inside the first rod hole 66. Through the arrangement of the bristles, the spiral guide groove can be cleaned while the wire rack 64 moves, thereby ensuring stable operation of the device and increasing the service life of the device.

[0052] Embodiment 5, as Figure 1 As shown, a bracket is welded on the top of the frame 1, and a guide rope rod 7 is rotatably installed inside the bracket. The guide rope rod 7 is lower than the cable arrangement assembly 6. Through this design, the tension adjustment effect of the device is better, and the wire rope will not be lifted too high, which will not affect the normal transmission and wiring of the wire rope.

[0053] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A lifting device for engineering construction, comprising a frame (1), a motor (2) and a reducer (3), characterized in that: A reel (4) is rotatably mounted on the top of the frame (1), a mounting shaft (41) is fixedly mounted inside the reel (4), the left end of the mounting shaft (41) is connected to the output shaft of the reducer (3), and a clamping groove (44) and a pull groove (43) are provided on the right end of the mounting shaft (41), the clamping groove (44) and the pull groove (43) are both annular in design, and the clamping groove (44) is located on the left side of the pull groove (43); Both ends of the installation shaft (41) are sleeved with a swing rod (5), and a stall sensor (51) is fixedly installed on the outer side of the left swing rod (5), and the stall sensor (51) is used to detect the rotation speed of the installation shaft (41). A sliding opening (52) is opened inside the right swing rod (5), and the length of the sliding opening (52) is the same as the length of the clamping groove (44) and the pull groove (43). A sliding box (54) is slidably connected inside the sliding opening (52), and the sliding box (54) can slide along the sliding opening (52). A clamping rod (56) is slidably connected inside the sliding box (54), and a clamping rod (56) is provided between the clamping rod (56) and the inner wall of the sliding box (54). A spring (57) is provided, one end of the clamping rod (56) close to the inner side of the swing rod (5) is triangular in design, the clamping rod (56) can be completely inserted into the clamping slot (44), and only the triangular end can be inserted into the pull slot (43), an electromagnet (53) is fixedly installed on the left side of the slide opening (52), the stall sensor (51) controls the power on and off of the electromagnet (53) through the PLC controller, the slide box (54) can be attracted by magnetic force, a tension spring (55) is provided between the slide box (54) and the right inner wall of the slide opening (52), and a pull rod (58) is provided on the side of the clamping rod (56) away from the swing rod (5), and the pull rod (58) passes through the slide box (54); A cable arrangement assembly (6) is arranged between the two groups of swing rods (5), and the cable arrangement assembly (6) includes a guide rod (62) fixedly installed between the two groups of swing rods (5), and also includes a driving rod (61) rotatably installed between the two groups of swing rods (5), and the outer side of the driving rod (61) is provided with two groups of spiral guide grooves, the two groups of spiral guide grooves have opposite rotation directions, and the head and tail ends of the two groups of spiral guide grooves are connected to each other, and the outer side of the driving rod (61) is sleeved with a cable arrangement frame (64), and the cable arrangement frame (64) ) are rotatably mounted on the top of the wire rack (64), and the wire rope can pass through the two sets of guide wheels (65). A driving block (69) is arranged inside the wire rack (64), and the driving block (69) is sleeved on the driving rod (61). The inner wall of the driving block (69) is provided with a driving protrusion (610), and the driving protrusion (610) is clamped in the spiral guide groove. A second rod hole (67) is opened inside the wire rack (64), and the guide rod (62) passes through the second rod hole (67).

2. A lifting device for engineering construction according to claim 1, characterized in that: A driven sprocket (63) is fixedly mounted on the right end of the driving rod (61), a driving sprocket (42) is fixedly mounted on the right end of the mounting shaft (41), and the driving sprocket (42) and the driven sprocket (63) are connected via a chain transmission.

3. A lifting device for engineering construction according to claim 2, characterized in that: A positioning slot (68) is provided inside the cable rack (64), and the driving block (69) can be inserted into the positioning slot (68). The driving block (69) is a rectangular parallelepiped. First rod holes (66) are provided at both ends of the cable rack (64), and the first rod holes (66) extend into the positioning slot (68). The driving rod (61) can pass through the first rod holes (66).

4. A lifting device for engineering construction according to claim 3, characterized in that: Brush bristles are arranged inside the first rod hole (66).

5. The lifting device for engineering construction according to claim 1, characterized in that: A bracket is welded on the top of the frame (1), and a rope guide rod (7) is rotatably mounted inside the bracket. The rope guide rod (7) is lower than the cable arrangement assembly (6).

6. A lifting device for engineering construction according to claim 1, characterized in that: The frame (1) is made of square tubes welded together.

Images