Automatic reversing box of climbing mechanism and operation method

Abstract

The invention provides an automatic reversing box of a climbing mechanism and an operation method. The automatic reversing box comprises a lower cover plate and an upper cover plate, a plurality of vertically arranged wall plates are fixedly installed between the lower cover plate and the upper cover plate, a climbing head shaft is rotatably installed between the wall plates, a hammer-shaped climbing head is fixedly installed on the climbing head shaft, and one end of the climbing head shaft is fixedly connected with an output shaft of a stepping motor; the stepping motor is fixed on the outer wall of the wall plate; the conical end of the hammer-shaped climbing head is hinged to one end of the spring buffer, and the other end of the spring buffer is hinged to the wall plate through the spring buffer seat plate. According to the reversing box, the PLC controls the stepping motor to conduct intelligent reversing, so that the problems that an existing reversing box needs manual reversing and is not high in safety performance are solved, and the defects of the climbing automatic reversing box are overcome.

Description

Technical Field

[0001] The invention relates to the technical field of hydraulic platform climbing of construction machinery, in particular to an automatic reversing box of a climbing mechanism and an operating method thereof. Background Art

[0002] Climbing rails are often used in high-rise building construction to transport cloud car platforms or other loads upward along the wall. The reversing box connects the climbing rails and the formwork at the same time. The reversing box can control the lifting of the climbing rails or the formwork. The oil cylinder can make the formwork and the climbing rails climb each other, so that the self-climbing formwork can climb steadily upward. The climbing rail is installed vertically to the ground, and the ladder steps are welded on the surface of the climbing rail and evenly arranged along the height direction of the climbing rail.

[0003] At present, the hydraulic platform climbing reversing box requires the operator to adjust the direction of the ratchet and then start the oil cylinder. The reversing handle is pointed downward, and the lower load-bearing surface of the ratchet presses against the top of the ladder step. The climbing formwork frame moves relative to the climbing rail. The climbing rail and the climbing formwork frame are alternately attached to the wall and lift each other. The climbing formwork frame can be lifted layer by layer along the climbing cones reserved on the wall.

[0004] However, in the prior art, the direction of the climbing claw is mainly controlled by rotating a handle or a push rod to control the direction of the restoring force. This control method not only leads to a complex structure and inconvenient maintenance, but also easily causes the handle or push rod to loosen when the force is relatively large, which has a great impact on the safety of climbing. This has certain shortcomings. Summary of the invention

[0005] The present invention aims to provide an automatic reversing box and an operating method for a climbing mechanism. The reversing of the reversing box is intelligently commutated by controlling a stepping motor through a PLC, so as to solve the problem that the existing reversing box requires manual reversing and has low safety performance, thereby improving the shortcomings of the climbing automatic reversing box.

[0006] In order to realize the above-mentioned technical features, the purpose of the present invention is achieved as follows: an automatic reversing box of a climbing mechanism, comprising a lower cover plate and an upper cover plate, a plurality of vertically arranged wall panels are fixedly installed between the lower cover plate and the upper cover plate, a climbing head shaft is rotatably installed between the wall panels, a hammer-shaped climbing head is fixedly installed on the climbing head shaft, one end of the climbing head shaft is fixedly connected to the output shaft of the stepper motor; the stepper motor is fixed on the outer wall of the wall panel; the conical end of the hammer-shaped climbing head is hingedly connected to one end of a spring buffer, and the other end of the spring buffer is hingedly connected to the wall panel through a spring buffer seat plate.

[0007] The climbing head shaft is fixedly connected to the output shaft of the stepper motor through a coupling and transmits torque.

[0008] The hammer-shaped climbing head is connected to the climbing head shaft through a flat key and transmits torque.

[0009] The hammer-shaped climbing head comprises an axial hole, which matches with the climbing head axis, and a hinge hole for connecting a spring buffer is arranged at the conical end of the hammer-shaped climbing head.

[0010] The wall plate is provided with an axis hole for matching with the climbing head axis.

[0011] An upper crossbeam is fixed to the bottom end of the upper cover plate, and the upper crossbeam is used to contact and limit the upper end surface of the hammer-shaped climbing head; the upper bearing surface of the hammer-shaped climbing head is used to contact and cooperate with the lower end surface of the ladder step.

[0012] A lower crossbeam is fixed to the top of the lower cover plate, and the lower crossbeam is used to contact and limit the lower end surface of the hammer-shaped climbing head; the lower bearing surface of the hammer-shaped climbing head is used to contact and cooperate with the upper end surface of the ladder step.

[0013] The stepper motor is connected to a PLC controller to control the forward and reverse rotation of the stepper motor.

[0014] An operating method of an automatic reversing box of a climbing mechanism: When the climbing rail is to be lifted, the stepper motor is controlled by the PLC controller to move counterclockwise, the spring of the spring buffer is compressed, and the spring is relaxed after passing the balanced middle position. The stepper motor drives the climbing head shaft to rotate at the same time. The climbing head shaft rotates so that the upper bearing surface of the hammer-shaped climbing head presses against the bottom of the ladder step, and the other end of the hammer-shaped climbing head presses against the bottom end of the upper beam, and the oil cylinder works, so that the climbing rail moves upward; When the climbing formwork frame needs to be lifted, the PLC controller controls the stepper motor to move clockwise, the spring of the spring buffer is compressed, and the spring is relaxed after passing the balanced middle position. The climbing head shaft rotates so that the lower bearing surface of the hammer-shaped climbing head presses against the top of the ladder step, and the other end of the hammer-shaped climbing head presses against the lower beam. The oil cylinder works, and the reversing box climbs along the climbing rail, thereby lifting the climbing formwork frame.

[0015] The present invention has the following beneficial effects: 1. The structure of the present invention is simple, easy to inspect and maintain, the climbing head shaft is connected to the stepper motor, no manual operation is required, the stepper motor is controlled by PLC, intelligent control can be easily performed, and it can be inspected by a camera. Because it is unmanned, it has a high degree of safety.

[0016] 2. The tail of the climbing claw of the present invention is directly connected to the spring buffer, and there is no need to transmit elastic force through a shaft, thereby improving reliability; the spring buffer adopts a pressure spring, which is different from the conventional tension spring that is easily broken, thereby improving reliability.

[0017] 3. The climbing claw of the present invention uses a reaction beam to balance the climbing claw head, which is more reliable than using a conventional reversing box wall or pin to balance the climbing claw head. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0019] Figure 1 It is a schematic diagram of the side structure of the reversing box.

[0020] Figure 2 It is a schematic diagram of the cross-sectional structure of the reversing box.

[0021] Figure 3 It is a schematic diagram of the cross-sectional structure of the hammer-shaped climbing head.

[0022] Figure 4 It is a schematic diagram of the cross-sectional structure of the compressed spring buffer and the seat plate.

[0023] Figure 5 This is a schematic diagram of the structure of the ladder steps and hammer-shaped climbing head when climbing rails for lifting.

[0024] Figure 6 This is a schematic diagram of the structure of the ladder steps and hammer-shaped climbing head during the intermediate transition of the switching.

[0025] Figure 7 This is a schematic diagram of the structure of the ladder steps and hammer-shaped climbing head when the cloud car is lifted.

[0026] In the figure: stepper motor 1, hammer-shaped climbing head 2, spring buffer 3, climbing head shaft 4, track 5, ladder step 6, upper crossbeam 7, lower crossbeam 8, wall plate 9, lower cover plate 10, upper cover plate 11, upper bearing surface 12, lower bearing surface 13, spring buffer seat plate 14; Hinge hole 201 and shaft hole 202. DETAILED DESCRIPTION

[0027] The embodiments of the present invention are further described below in conjunction with the accompanying drawings.

[0028] Embodiment 1: See also Figure 1-7 , an automatic reversing box of a climbing mechanism, comprising a lower cover plate 10 and an upper cover plate 11, a plurality of vertically arranged wall plates 9 are fixedly installed between the lower cover plate 10 and the upper cover plate 11, a climbing head shaft 4 is rotatably installed between the wall plates 9, a hammer-shaped climbing head 2 is fixedly installed on the climbing head shaft 4, one end of the climbing head shaft 4 is fixedly connected to the output shaft of a stepper motor 1; the stepper motor 1 is fixed on the outer wall of the wall plate 9; the conical end of the hammer-shaped climbing head 2 is hingedly connected to one end of a spring buffer 3, and the other end of the spring buffer 3 is hingedly connected to the wall plate 9 through a spring buffer seat plate 14. The reversing of this reversing box is intelligently reversing by controlling the stepper motor through PLC, so as to solve the problem that the existing reversing box requires manual reversing and has low safety performance, and improves the shortcomings of the climbing automatic reversing box. In the specific use process, the stepper motor is controlled by PLC for automatic reversing, and then the hammer-shaped climbing head 2 is controlled by the stepper motor 1, and the switching of the climbing rail or the climbing formwork frame is realized by the reversing of the hammer-shaped climbing head 2.

[0029] Furthermore, the crawling head shaft 4 is fixedly connected to the output shaft of the stepper motor 1 through a coupling and transmits torque. Through the above coupling connection, it is ensured that the stepper motor 1 can drive the crawling head shaft 4 to rotate synchronously, and then the crawling head shaft 4 synchronously drives the rotation reversal of the hammer crawling head 2.

[0030] Furthermore, the hammer-shaped crawling head 2 is connected to the crawling head shaft 4 through a flat key and transmits torque. Through the above-mentioned flat key cooperation, it is ensured that the rotation of the crawling head shaft 4 can drive the hammer-shaped crawling head 2 to rotate, and then the rotation of the hammer-shaped crawling head 2 can achieve reversing.

[0031] Furthermore, the hammer-shaped climbing head 2 includes an axial hole 202, which is matched with the climbing head shaft 4, and the conical end of the hammer-shaped climbing head 2 is provided with a hinge hole 201 for connecting the spring buffer 3. The hammer-shaped climbing head 2 can be driven to rotate by the climbing head shaft 4 on the one hand, and can be locked by the spring buffer 3 in the state after the hammer-shaped climbing head 2 is reversed on the other hand.

[0032] Further, the wall plate 9 is provided with an axial hole for cooperating with the climbing head shaft 4. The axial hole ensures that the climbing head shaft 4 can rotate normally later.

[0033] Furthermore, an upper crossbeam 7 is fixed to the bottom end of the upper cover plate 11, and the upper crossbeam 7 is used to contact and limit the upper end surface of the hammer-shaped climbing head 2; the upper bearing surface 12 of the hammer-shaped climbing head 2 is used to contact and match the lower end surface of the ladder step 6. The upper crossbeam 7 can be used to limit the upper limit position of the hammer-shaped climbing head 2.

[0034] Furthermore, a lower crossbeam 8 is fixed to the top of the lower cover plate 10, and the lower crossbeam 8 is used to contact and limit the lower end surface of the hammer-shaped climbing head 2; the lower bearing surface 13 of the hammer-shaped climbing head 2 is used to contact and match the upper end surface of the ladder step 6. The lower crossbeam 8 can be used to limit the lower limit position of the hammer-shaped climbing head 2.

[0035] Furthermore, the stepper motor 1 is connected to a PLC controller to control the forward and reverse rotation of the stepper motor 1. The PLC controller can realize automatic control of the stepper motor 1, thereby realizing its reversing operation.

[0036] Embodiment 2: See also Figure 5-7 , an operating method of an automatic reversing box of a climbing mechanism: When the climbing rail is to be lifted, the stepper motor 1 is controlled by the PLC controller to move counterclockwise, the spring of the spring buffer 3 is compressed, and the spring is relaxed after passing the balanced middle position, and the stepper motor 1 drives the climbing head shaft 4 to rotate at the same time, and the climbing head shaft 4 rotates so that the upper bearing surface 12 of the hammer-shaped climbing head 2 presses against the bottom of the ladder step 6, and the other end of the hammer-shaped climbing head 2 presses against the bottom end of the upper crossbeam 7, and the oil cylinder works, so that the climbing rail moves upward; When the climbing formwork frame is to be lifted, the stepper motor 1 is controlled by the PLC controller to move clockwise, the spring of the spring buffer 3 is compressed, and the spring is relaxed after passing the balanced middle position. The climbing head shaft 4 rotates so that the lower supporting surface of the hammer-shaped climbing head 2 presses against the top of the ladder step 6, and the other end of the hammer-shaped climbing head 2 presses against the lower crossbeam 8. The oil cylinder works, and the reversing box climbs along the climbing rail, thereby lifting the climbing formwork frame.

Claims

1. An automatic reversing box of a climbing mechanism, characterized in that: The invention comprises a lower cover plate (10) and an upper cover plate (11), wherein a plurality of vertically arranged wall plates (9) are fixedly mounted between the lower cover plate (10) and the upper cover plate (11), a climbing head shaft (4) is rotatably mounted between the wall plates (9), a hammer-shaped climbing head (2) is fixedly mounted on the climbing head shaft (4), one end of the climbing head shaft (4) is fixedly connected to the output shaft of a stepper motor (1); the stepper motor (1) is fixed to the outer wall of the wall plate (9); the conical end of the hammer-shaped climbing head (2) is hingedly connected to one end of a spring buffer (3), and the other end of the spring buffer (3) is hingedly connected to the wall plate (9) via a spring buffer seat plate (14).

2. According to claim 1, the automatic reversing box of the climbing mechanism is characterized in that: The climbing head shaft (4) is fixedly connected to the output shaft of the stepping motor (1) via a coupling and transmits torque.

3. The automatic reversing box of a climbing mechanism according to claim 1, characterized in that: The hammer-shaped climbing head (2) is connected to the climbing head shaft (4) via a flat key and transmits torque.

4. The automatic reversing box of a climbing mechanism according to claim 1, characterized in that: The hammer-shaped crawling head (2) comprises an axial hole (202) which matches the crawling head shaft (4); a hinge hole (201) for connecting a spring buffer (3) is provided at the conical end of the hammer-shaped crawling head (2).

5. The automatic reversing box of a climbing mechanism according to claim 1, characterized in that: The wall plate (9) is provided with an axis hole for matching with the climbing head axis (4).

6. The automatic reversing box of a climbing mechanism according to claim 4, characterized in that: An upper crossbeam (7) is fixed to the bottom end of the upper cover plate (11), and the upper crossbeam (7) is used to contact and limit the upper end surface of the hammer-shaped climbing head (2); the upper bearing surface (12) of the hammer-shaped climbing head (2) is used to contact and cooperate with the lower end surface of the ladder step (6).

7. The automatic reversing box of a climbing mechanism according to claim 6, characterized in that: A lower crossbeam (8) is fixed to the top of the lower cover plate (10), and the lower crossbeam (8) is used to contact and limit the lower end surface of the hammer-shaped climbing head (2); the lower bearing surface (13) of the hammer-shaped climbing head (2) is used to contact and cooperate with the upper end surface of the ladder step (6).

8. The automatic reversing box of a climbing mechanism according to claim 7, characterized in that: The stepper motor (1) is connected to a PLC controller, and controls the forward and reverse rotation of the stepper motor (1).

9. The operating method of the automatic reversing box of a climbing mechanism according to claim 8, characterized in that: When the climbing rail is to be lifted, the stepper motor (1) is controlled by the PLC controller to move counterclockwise, the spring of the spring buffer (3) is compressed, and the spring is relaxed after passing the balanced middle position, and the stepper motor (1) drives the climbing head shaft (4) to rotate at the same time. The climbing head shaft (4) rotates so that the upper bearing surface (12) of the hammer-shaped climbing head (2) presses against the bottom of the ladder step (6), and the other end of the hammer-shaped climbing head (2) presses against the bottom end of the upper crossbeam (7), and the oil cylinder works, thereby causing the climbing rail to move upward; When the climbing formwork frame is to be lifted, the stepper motor (1) is controlled by the PLC controller to move clockwise, the spring of the spring buffer (3) is compressed, and the spring is relaxed after passing the balanced middle position. The climbing head shaft (4) rotates so that the lower bearing surface of the hammer-shaped climbing head (2) presses against the top of the ladder step (6), and the other end of the hammer-shaped climbing head (2) presses against the lower crossbeam (8). The oil cylinder works, and the reversing box climbs along the climbing rail, thereby lifting the climbing formwork frame.

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