Anti-falling device and method for vertical shaft heading machine

Abstract

The anti-falling device comprises a first object measuring device, a second object measuring device and an anti-falling ring which are sequentially and fixedly arranged in a vertical shaft from top to bottom, a circle of groove is formed in the anti-falling ring, a plurality of object blocking parts are arranged in the groove, and the object blocking parts are evenly distributed around the axis of the anti-falling ring. The object blocking part comprises a rotating shaft installed in the groove, one end of a swing rod is fixedly connected with the rotating shaft, an electromagnetic telescopic rod is fixedly connected to the anti-falling ring at the other end of the swing rod, an anti-falling net is fixedly connected between the swing rod and the inner wall face of the anti-falling ring, and the end face, located outside the anti-falling ring, of the rotating shaft is sleeved with a torsional spring. The other end of the torsional spring driving swing rod abuts against a rod piece in the electromagnetic telescopic rod. The device is used for solving the problem that articles fall to hurt people and articles in the well entering and exiting operation process of people and materials.

Description

Technical Field

[0001] The invention relates to a shaft boring machine anti-falling device and method. Background Art

[0002] The shaft boring machine has the advantages of safety, high efficiency, low cost, easy maintenance, convenient transfer, and can meet the needs of kilometer-level shaft construction. These advantages have expanded the application of shaft boring machines to deep ground engineering, underground parking lots, underground space development and other fields, and have become an important tool for solving the problems of shaft engineering construction. During the construction of the shaft, it is inevitable to transport personnel and materials. Frequent in and out of the shaft operation may cause materials to fall from the shaft and injure the workers at the bottom of the shaft or pierce the shaft boring equipment at the bottom of the shaft. Summary of the invention

[0003] The object of the present invention is to provide a shaft boring machine anti-falling device and method, which are used to solve the problem of falling objects injuring people and objects during the operation of personnel and materials entering and exiting the shaft.

[0004] In order to solve the above problems, the technical solution of the present invention is: A fall prevention device for a shaft boring machine comprises a first object measuring device, a second object measuring device and an anti-fall ring which are fixedly arranged in the shaft from top to bottom in sequence, a circle of grooves is arranged in the anti-fall ring, a plurality of object blocking parts are arranged in the grooves, and each object blocking part is evenly distributed around the axis of the anti-fall ring, the object blocking part comprises a rotating shaft installed in the groove, one end of a swing rod is fixedly connected to the rotating shaft, an electromagnetic telescopic rod is fixedly connected to the anti-fall ring at the other end of the swing rod, an anti-fall net is fixedly connected between the swing rod and the inner wall of the anti-fall ring, a torsion spring is arranged on the outer surface of one end of the rotating shaft outside the anti-fall ring, and the torsion spring drives the other end of the swing rod to press against the rod in the electromagnetic telescopic rod.

[0005] The first object measuring device and the second object measuring device have the same structure, both of which are arc gratings.

[0006] It also includes a PLC controller, the first object measuring device and the second object measuring device are connected to the input end of the PLC controller, and each electromagnetic telescopic rod is connected to the output end of the controller.

[0007] A reset button is connected to the input of the PLC controller.

[0008] At least 6 object-blocking parts are arranged in the groove.

[0009] A method for a fall prevention device for a shaft boring machine, wherein a first object measuring device and a second object measuring device detect the falling speed of a falling object, and if the falling speed exceeds 9.5 M / S, it is judged to be a free-falling object. At this time, a PLC controller controls the rods in each electromagnetic telescopic rod to retract synchronously, and a torsion spring pops out each swing rod to expand the fall prevention net in the fall prevention circle, and the expanded fall prevention object intercepts the falling object. If the falling speed is detected to be less than 9.5 M / S, it is judged to be a hoisted object.

[0010] The beneficial effects of the present invention are: on the one hand, it can provide protection for the safety of construction workers at the bottom of the shaft; on the other hand, when a fall accidentally occurs during the lifting process of materials, the anti-fall device also provides a buffer for the shaft boring machine to avoid equipment damage or injury to the construction workers inside the shaft boring machine, while not affecting the entry and exit of workers and the lifting of objects in and out. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The present invention will be further described below in conjunction with the accompanying drawings: Figure 1 is a schematic diagram of the three-dimensional structure of the present invention, Figure 2 is a schematic diagram of the three-dimensional structure of the present invention, Figure 3 It is a schematic diagram of the local cross-sectional structure of the present invention, Figure 4 It is a schematic diagram of the local cross-sectional structure of the present invention, Figure 5 It is a schematic diagram of the local cross-sectional structure of the present invention, Figure 6 It is a schematic diagram of the structure of the present invention when it is implemented. Figure 7 Schematic diagram of the connection relationship of various electrical components of the present invention.

[0012] In the figure: a first measuring device 1, a second measuring device 2, an anti-falling ring 3, an anti-falling net 4, a rotating shaft 5, a swing rod 6, a torsion spring 7, an electromagnetic telescopic rod 8, a vertical shaft 9, and a reset button 10. DETAILED DESCRIPTION

[0013] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0014] like Figures 1 to 7As shown, a fall prevention device for a shaft boring machine comprises a first measuring device 1, a second measuring device 2 and an anti-falling ring 3 which are fixedly arranged in the shaft from top to bottom by using anchor rods. A circle of grooves is arranged in the anti-falling ring 3, and a plurality of blocking parts are arranged in the grooves. Each blocking part is evenly distributed around the axis of the anti-falling ring 3. The blocking part comprises a rotating shaft 5 installed in the groove, one end of a swing rod 6 is fixedly connected to the rotating shaft 5, an electromagnetic telescopic rod 8 is fixedly connected to the anti-falling ring 3 at the other end of the swing rod 6, an anti-falling net 4 is fixedly connected between the swing rod 6 and the inner wall of the anti-falling ring 3, and a torsion spring 7 is arranged on the outer end of the rotating shaft 5 outside the anti-falling ring 3, and the torsion spring 7 drives the other end of the swing rod 6 to abut against the rod in the electromagnetic telescopic rod 8. After the electromagnetic telescopic rod 8 is powered, the rod in the electromagnetic telescopic rod 8 retracts to release the swing rod 6; when the power is lost, the rod in the electromagnetic telescopic rod 8 automatically pops out.

[0015] The first object measuring device 1 and the second object measuring device 2 have the same structure, both of which are arc gratings. The diameter of the arc grating is greater than or equal to the shaft diameter, so that it fits the shaft wall and does not affect the lifting of materials in and out, and the entry and exit of personnel.

[0016] It also includes a PLC controller. The first object measuring device 1 and the second object measuring device 2 are connected to the input end of the PLC controller, and each electromagnetic telescopic rod 8 is connected to the output end of the controller.

[0017] A reset button 10 is connected to the input end of the PLC controller. After pressing the reset button 10, the rod in the electromagnetic telescopic rod 8 is retracted, so that the staff can manually press the ejected pendulum rod 6 back into the groove.

[0018] At least 6 object-blocking parts are arranged in the groove.

[0019] A method for a fall prevention device for a shaft boring machine, wherein a first object measuring device 1 and a second object measuring device 2 detect the falling speed of a falling object. If the falling speed exceeds 9.5 M / S, it is judged to be a free-falling object. At this time, a PLC controller controls the rods in each electromagnetic telescopic rod 8 to retract synchronously and releases the swing rod 6, so that each swing rod 6 is ejected by a torsion spring 7 to expand the fall prevention net 4 in the fall prevention ring 3. The expanded fall prevention object intercepts the falling object. If the falling speed is detected to be less than 9.5 M / S, it is judged to be a hoisted object.

[0020] In addition, as the excavation depth of the shaft increases, multiple anti-fall devices can be installed in the shaft, and the distance between two adjacent anti-fall devices can be controlled within 2 meters. This can protect objects or personnel that accidentally fall during the operation, and can also play a multi-level protection buffer role.

[0021] After cleaning the fallen objects on the anti-fall net 4, the staff presses the reset button 10, and the staff can manually press the popped-out swing rod 6 back into the groove to allow the falling device to be reused.

[0022] The method for the first measuring device 1 and the second measuring device 2 to detect the speed of a falling object is as follows: the distance between the first measuring device 1 and the second measuring device 2 is set to 1 meter, the time when the object passes through the first measuring device 1 is recorded as t1, and the time when the object passes through the second measuring device 2 is set as t2, thereby calculating the falling speed of the object as s=2 / t1-t2.

[0023] The contents described in the embodiments of this specification are merely an enumeration of the implementation forms of the inventive concept. The protection scope of the present invention should not be regarded as limited to the specific forms described in the embodiments. The protection scope of the present invention also extends to equivalent technical means that can be conceived by those skilled in the art based on the inventive concept.

Claims

1. A shaft boring machine anti-fall device, characterized in that: The invention comprises a first measuring device (1), a second measuring device (2) and an anti-falling ring (3) which are fixedly arranged in sequence in a vertical shaft from top to bottom. A circle of grooves is arranged in the anti-falling ring (3). A plurality of blocking parts are arranged in the groove. Each blocking part is evenly distributed around the axis of the anti-falling ring (3). The blocking part comprises a rotating shaft (5) installed in the groove. One end of a swing rod (6) is fixedly connected to the rotating shaft (5). An electromagnetic telescopic rod (8) is fixedly connected to the anti-falling ring (3) at the other end of the swing rod (6). An anti-falling net (4) is fixedly connected between the swing rod (6) and the inner wall of the anti-falling ring (3). A torsion spring (7) is sheathed on one end surface of the rotating shaft (5) located outside the anti-falling ring (3). The torsion spring (7) drives the other end of the swing rod (6) to abut against a rod in the electromagnetic telescopic rod (8).

2. A shaft boring machine anti-falling device according to claim 1, characterized in that: The first object measuring device (1) and the second object measuring device (2) have the same structure, both being arc-shaped gratings.

3. A shaft boring machine anti-falling device according to claim 2, characterized in that: It also includes a PLC controller, wherein the first object measuring device (1) and the second object measuring device (2) are connected to an input end of the PLC controller, and each electromagnetic telescopic rod (8) is connected to an output end of the controller.

4. A shaft boring machine anti-falling device according to claim 2, characterized in that: A reset button (10) is connected to the input of the PLC controller.

5. A shaft boring machine anti-falling device according to any one of claims 1 to 3, characterized in that: At least 6 object-blocking parts are arranged in the groove.

6. A method for using the shaft boring machine anti-fall device according to claim 3, characterized in that: The first object measuring device (1) and the second object measuring device (2) detect the falling speed of the falling object. If the falling speed exceeds 9.5 M / S, it is judged to be a free-falling object. At this time, the PLC controller controls the rods in each electromagnetic telescopic rod (8) to retract synchronously, and the torsion spring (7) ejects each swing rod (6) to expand the anti-fall net (4) in the anti-fall ring (3). The expanded anti-fall object intercepts the falling object. If the falling speed is detected to be less than 9.5 M / S, it is judged to be a hoisted object.

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