Large-span open-off cut combined supporting frame

Abstract

The utility model discloses a large-span open-off cut combined supporting frame which comprises a base, the rear end of the base is rotationally connected with an adjusting frame, the upper end of the adjusting frame is rotationally connected with a supporting frame, the front end of the supporting frame is rotationally connected with a top plate, and the large-span open-off cut combined supporting frame further comprises a supporting mechanism. The supporting mechanism comprises a telescopic plate, folding legs, telescopic legs, locking grooves and locking screws, the telescopic plate is slidably connected into the first sliding groove in the front side of the top plate, the folding legs are rotatably connected into the folding shrinkage grooves in the lower end of the telescopic plate through rotating shafts, and the telescopic legs are slidably connected into the second sliding grooves in the lower ends of the folding legs; locking grooves are formed in the middles of the rear sides of the telescopic legs, locking screws are in threaded connection with the interiors of threaded holes in the lower ends of the rear sides of the folding legs, and the locking screws and the longitudinally-adjacent locking grooves are installed in a matched mode. According to the large-span open-off cut combined supporting frame, through cooperation of the folding legs and the telescopic legs, when the supporting frame is used, the supporting frame stretches out to be supported on the ground, and supporting force is provided for the telescopic plate; therefore, the reliability of the supporting frame is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of eye-cutting combined supporting frames, in particular to a large-span eye-cutting combined supporting frame. Background Art

[0002] The cut-hole combined support frame is a comprehensive support technology designed to solve the problem of cut-hole support under complex geological conditions. This technology combines multiple support methods to adapt to different geological conditions and mine pressure conditions to ensure the safety and stability of the cut-hole;

[0003] The traditional large-span eye-cutting joint support frame uses a hydraulic cylinder to lift a foldable support plate to achieve the support function of the eye-cutting;

[0004] This type of large-span eye-cutting combined support frame has the following disadvantages: when a large-span eye-cutting needs to be supported, an electric push rod is usually used to push out the retractable part of the support plate. This extended part relies solely on its own mechanical strength to resist the reaction force of the support during support, and has poor reliability. For this reason, we propose a large-span eye-cutting combined support frame. Utility Model Content

[0005] The technical problem to be solved by the present invention is to overcome the existing defects and provide a large-span eye-cutting combined support frame. Through the cooperation of folding legs and telescopic legs, it is extended to support the ground when in use, providing supporting force for the telescopic plate, thereby making the support frame more reliable and effectively solving the problems in the background technology.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a large-span eye-cutting combined support frame, comprising a base, a rear end of the base being rotatably connected to an adjustment frame, an upper end of the adjustment frame being rotatably connected to a support frame, a front end of the support frame being rotatably connected to a top plate, and further comprising a support mechanism;

[0007] The supporting mechanism includes a telescopic plate, a folding leg, a telescopic leg, a locking groove and a locking screw. The telescopic plate is slidably connected in the first slide groove on the front side of the top plate, and the folding leg is rotatably connected in the folding and shrinking groove at the lower end of the telescopic plate through a rotating shaft. The telescopic leg is slidably connected in the second slide groove at the lower end of the folding leg. A locking groove is provided in the middle part of the rear side of the telescopic leg, and the locking screws are threadedly connected in the threaded holes at the lower end of the rear side of the folding leg. The locking screws are installed in conjunction with the longitudinally adjacent locking grooves. Through the cooperation of the folding legs and the telescopic legs, the support is extended to the ground when in use, providing supporting force for the telescopic plate, thereby making the support frame more reliable.

[0008] Furthermore, a single chip microcomputer is provided in the middle of the right side of the base, and an input end of the single chip microcomputer is electrically connected to an external power supply to control the electrical appliance.

[0009] Furthermore, the support mechanism also includes a rack, a motor and a gear. Motor 1 is provided at the relatively inner lower ends of the two folding legs, and a rack is provided on the front side walls of the avoidance opening in the middle of the telescopic leg. Gears are rotatably connected between the left and right side walls of the folding legs through pins, and the gears are meshed with the longitudinally adjacent racks. The output shaft of motor 1 passes through the circular holes on the relatively inner sides of the two folding legs and is fixedly connected to the pins. The input end of motor 1 is electrically connected to the output end of the single-chip microcomputer to drive the telescopic legs to extend and retract.

[0010] Furthermore, the support mechanism also includes motor 2, which is arranged at the front end of the telescopic plate away from the center of the base. The output shaft of motor 2 passes through the circular holes on the left and right sides of the telescopic plate and is fixedly connected to the rotating shaft. The input end of motor 2 is electrically connected to the output end of the microcontroller to drive the folding legs to retract and extend.

[0011] Furthermore, an electric push rod is provided at the front end of the fixed seat in the middle of the lower end of the top plate, and the telescopic end of the electric push rod is fixedly connected to the connecting seat in the middle of the front side of the telescopic plate. The input end of the electric push rod is electrically connected to the output end of the single-chip microcomputer to drive the telescopic plate to extend and retract.

[0012] Furthermore, a hydraulic cylinder is rotatably connected in the mounting groove in the middle of the base, and the upper end of the telescopic end of the hydraulic cylinder is rotatably connected to a rotating seat vertically adjacent to the rear end of the bottom of the top plate. The input end of the hydraulic cylinder is electrically connected to the output end of the single-chip microcomputer to lift the top plate.

[0013] Furthermore, a hydraulic cylinder 2 is rotatably connected to the middle part of the rear side of the base, and the telescopic end of the hydraulic cylinder 2 is rotatably connected to the rotating seat 2 in the middle part of the support frame. The input end of the hydraulic cylinder 2 is electrically connected to the output end of the single-chip microcomputer, so that the top plate support is more stable.

[0014] Compared with the existing technology, the beneficial effects of the present invention are: the large-span eye-cutting combined support frame has the following advantages:

[0015] The folding legs are extended by motor 2, and the telescopic legs are extended by motor 1. When in use, the outer telescopic plate can be extended to provide supporting force, thereby making the support frame more reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the cross-section structure of the utility model;

[0018] Figure 3 This is a schematic structural diagram of a cross-section of the support mechanism of the present invention;

[0019] Figure 4 This is an enlarged structural diagram of point A of the present invention.

[0020] In the figure: 1 base, 2 adjustment frame, 3 support frame, 4 top plate, 5 support mechanism, 51 telescopic plate, 52 folding leg, 53 telescopic leg, 54 rack, 55 locking groove, 56 locking screw, 57 motor 1, 58 gear, 59 motor 2, 6 electric push rod, 7 single chip microcomputer, 8 hydraulic cylinder 1, 9 hydraulic cylinder 2. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] See also Figure 1-4 This embodiment provides a technical solution: a large-span eye-cutting joint support frame, including a base 1, the rear end of the base 1 is rotatably connected to an adjustment frame 2, the upper end of the adjustment frame 2 is rotatably connected to a support frame 3, the front end of the support frame 3 is rotatably connected to a top plate 4, and also includes a support mechanism 5, a single-chip microcomputer 7 is provided in the middle of the right side of the base 1, the input end of the single-chip microcomputer 7 is electrically connected to an external power supply, an electric push rod 6 is provided at the front end of the fixed seat in the middle of the lower end of the top plate 4, the telescopic end of the electric push rod 6 is fixedly connected to the connecting seat in the middle of the front side of the telescopic plate 51, the input end of the electric push rod 6 is electrically connected to the output end of the single-chip microcomputer 7, and a hydraulic cylinder 8 is rotatably connected in the mounting groove in the middle of the base 1. The upper ends of the telescopic ends of the hydraulic cylinder 1 8 are rotatably connected to the rotating seat 1 vertically adjacent to the rear end of the bottom of the top plate 4. The input end of the hydraulic cylinder 1 8 is electrically connected to the output end of the single-chip computer 7. The middle part of the rear side of the base 1 is rotatably connected to the hydraulic cylinder 2 9. The telescopic end of the hydraulic cylinder 2 9 is rotatably connected to the rotating seat 2 in the middle of the support frame 3. The input end of the hydraulic cylinder 2 9 is electrically connected to the output end of the single-chip computer 7. The hydraulic cylinder 1 8 is turned on by the single-chip computer 7, and the telescopic end of the hydraulic cylinder 1 8 extends outward to lift the top plate 4 upward. Then, the hydraulic cylinder 2 9 is turned on by the single-chip computer 7, and the telescopic end of the hydraulic cylinder 2 9 extends outward to support the support frame 3, so that it forms a triangle shape with the hydraulic cylinder 2 9, thereby firmly supporting the top wall of the cut eye.

[0023] Support mechanism 5: It includes a telescopic plate 51, a folding leg 52, a telescopic leg 53, a locking groove 55 and a locking screw 56. The telescopic plate 51 is slidably connected in the first slide groove on the front side of the top plate 4. The folding and shrinking grooves at the lower end of the telescopic plate 51 are rotatably connected to the folding legs 52 through the rotating shaft. The telescopic legs 53 are slidably connected in the second slide grooves at the lower end of the folding legs 52. The middle part of the rear side of the telescopic leg 53 is provided with a locking groove 55. The threaded holes at the lower end of the rear side of the folding legs 52 are threadedly connected with locking screws 56. The locking screws 56 are The supporting mechanism 5 further comprises a rack 54, a motor 57 and a gear 58. The lower ends of the two folding legs 52 are provided with a motor 57. The front side walls of the avoidance opening in the middle of the telescopic leg 53 are provided with a rack 54. The left and right side walls of the folding legs 52 are rotatably connected with a gear 58 through a pin shaft. The gears 58 are meshed with the racks 54 adjacent to the longitudinal direction. The output shafts of the motor 57 pass through the circular holes on the inner sides of the two folding legs 52 and are fixedly connected to the pin shaft. The input end of the motor 1 57 is electrically connected to the output end of the single chip microcomputer 7. The support mechanism 5 also includes a motor 2 59. The motor 2 59 is arranged at the front end of the telescopic plate 51 away from the center of the base 1. The output shaft of the motor 2 59 passes through the round holes on the left and right sides of the telescopic plate 51 and is fixedly connected to the rotating shaft. The input end of the motor 2 59 is electrically connected to the output end of the single chip microcomputer 7. The electric push rod 6 is turned on by the single chip microcomputer 7. The telescopic end of the electric push rod 6 extends outward to push the telescopic plate 51 out from the inside of the slide groove 1, and then the electric push rod 6 is turned on by the single chip microcomputer 7. Machine 2 59, since motor 2 59 is a servo motor, the folding leg 52 can be extended by rotating its output shaft 90 degrees through the single-chip computer 7, and then the motor 1 57 is turned on by the single-chip computer 7, and the motor 1 57 drives the gear 58 to rotate to extend the telescopic leg 53. When the telescopic leg 53 contacts the ground, tighten the locking screw 56 to lock the telescopic leg 53. Through the cooperation of the folding leg 52 and the telescopic leg 53, it is extended and supported on the ground when in use, providing support force for the telescopic plate, thereby making the support frame more reliable.

[0024] The working principle of a large-span eye-cutting combined support frame provided by the utility model is as follows: when eye-cutting support is required, the support frame needs to be transferred to a preset location first, and then the hydraulic cylinder 1 8 is turned on by the single-chip computer 7, and the telescopic end of the hydraulic cylinder 1 8 extends outward to push the top plate 4 upward, and then the hydraulic cylinder 2 9 is turned on by the single-chip computer 7, and the telescopic end of the hydraulic cylinder 2 9 extends outward to support the support frame 3, so that it forms a triangular shape with the hydraulic cylinder 2 9 to firmly support the top wall of the eye-cutting. Then, the electric push rod 6 is turned on by the single-chip computer 7, and the telescopic end of the electric push rod 6 extends outward to push the telescopic plate 51 out from the inside of the slide groove 1, and then the motor 2 59 is turned on by the single-chip computer 7. Since the motor 2 59 is a servo motor, the output shaft thereof is controlled by the single-chip computer 7 to rotate 90 degrees to make the folding leg 52 extend outward, and then the motor 1 57 is turned on by the single-chip computer 7, and the motor 1 57 drives the gear 58 to rotate to make the telescopic leg 53 extend outward. When the telescopic leg 53 touches the ground, the locking screw 56 is tightened to lock the telescopic leg 53.

[0025] It is worth noting that the single-chip microcomputer 7 disclosed in the above embodiment can be a 51 series single-chip microcomputer, the motor 1 57 can be 110BYGH1.8, the motor 2 59 can be SB-7.5 / 380Y, the hydraulic cylinder 1 8 and the hydraulic cylinder 2 9 can be freely configured according to the actual application scenario, the electric push rod 6 can be LA14, and the single-chip microcomputer 7 controls the operation of the motor 1 57, the motor 2 59, the hydraulic cylinder 1 8, the hydraulic cylinder 2 9 and the electric push rod 6 using methods commonly used in the prior art.

[0026] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A large-span eye-cutting combined support frame, comprising a base (1), a rear end of the base (1) being rotatably connected to an adjustment frame (2), an upper end of the adjustment frame (2) being rotatably connected to a support frame (3), and a front end of the support frame (3) being rotatably connected to a top plate (4), characterized in that: Also includes a support mechanism (5); The supporting mechanism (5) comprises a telescopic plate (51), a folding leg (52), a telescopic leg (53), a locking groove (55) and a locking screw (56). The telescopic plate (51) is slidably connected in the first slide groove on the front side of the top plate (4). The folding leg (52) is rotatably connected in the folding and shrinking groove at the lower end of the telescopic plate (51) through a rotating shaft. The telescopic leg (53) is slidably connected in the second slide groove at the lower end of the folding leg (52). The middle part of the rear side of the telescopic leg (53) is provided with a locking groove (55). The threaded hole at the lower end of the rear side of the folding leg (52) is threadedly connected with a locking screw (56). The locking screw (56) is installed in conjunction with the longitudinally adjacent locking groove (55).

2. The large-span eye-cutting combined support frame according to claim 1 is characterized in that: A single-chip microcomputer (7) is provided in the middle of the right side of the base (1), and an input end of the single-chip microcomputer (7) is electrically connected to an external power supply.

3. The large-span eye-cutting combined support frame according to claim 2 is characterized in that: The support mechanism (5) further comprises a rack (54), a motor (57) and a gear (58). The lower ends of the opposite inner sides of the two folding legs (52) are each provided with a motor (57). The front side wall of the avoidance opening in the middle of the telescopic leg (53) is each provided with a rack (54). The left and right side walls of the folding legs (52) are both rotatably connected to a gear (58) via a pin shaft. The gears (58) are each meshed and connected with the longitudinally adjacent racks (54). The output shaft of the motor (57) passes through the circular holes on the opposite inner sides of the two folding legs (52) and is fixedly connected to the pin shaft. The input end of the motor (57) is electrically connected to the output end of the single-chip computer (7).

4. The large-span eye-cutting combined support frame according to claim 2 is characterized in that: The support mechanism (5) further comprises a second motor (59), which is arranged at the front end of the telescopic plate (51) away from the center of the base (1), and the output shaft of the second motor (59) passes through the circular holes on the left and right sides of the telescopic plate (51) and is fixedly connected to the rotating shaft, and the input end of the second motor (59) is electrically connected to the output end of the single chip computer (7).

5. The large-span eye-cutting combined support frame according to claim 2 is characterized in that: An electric push rod (6) is provided at the front end of the fixed seat in the middle of the lower end of the top plate (4); the telescopic end of the electric push rod (6) is fixedly connected to the connecting seat in the middle of the front side of the telescopic plate (51); and the input end of the electric push rod (6) is electrically connected to the output end of the single chip computer (7).

6. The large-span eye-cutting combined support frame according to claim 2, characterized in that: A hydraulic cylinder (8) is rotatably connected in the mounting groove in the middle of the base (1), and the upper end of the telescopic end of the hydraulic cylinder (8) is rotatably connected to a rotating seat (1) vertically adjacent to the rear end of the bottom of the top plate (4). The input end of the hydraulic cylinder (8) is electrically connected to the output end of the single-chip computer (7).

7. The large-span eye-cutting combined support frame according to claim 2, characterized in that: The middle part of the rear side of the base (1) is rotatably connected to a second hydraulic cylinder (9), the telescopic end of the second hydraulic cylinder (9) is rotatably connected to the second rotating seat in the middle part of the support frame (3), and the input end of the second hydraulic cylinder (9) is electrically connected to the output end of the single chip computer (7).

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