Monorail crane rail bearing capacity detection device

Abstract

The invention provides a monorail crane track bearing capacity detection device which comprises a mounting seat movably arranged on a monorail crane track, two loading oil cylinders rotatably arranged on the front side and the rear side of the mounting seat respectively, and supporting pieces movably arranged at the outer ends of piston rods of the two loading oil cylinders respectively. The two loading oil cylinders are arranged on the mounting base, the two swing oil cylinders are arranged on the mounting base and used for driving the two loading oil cylinders to move obliquely and vertically, the multi-way hydraulic control valve is used for controlling the two loading oil cylinders and the two swing oil cylinders to act, and the pressure sensors are arranged on oil inlet ways of the two loading oil cylinders and used for detecting loading oil pressure. The main controller is electrically connected with the pressure sensor and used for judging whether the bearing capacity of the current detection position of the monorail crane track is qualified or not, and the display screen is arranged in a cab of the monorail crane train and used for displaying information. According to the invention, the bearing capacity of the monorail crane track can be automatically detected conveniently and quickly, the manpower is greatly reduced, the detection efficiency and the detection safety are improved, and the blank of such devices is filled.

Description

Technical Field

[0001] The present invention relates to the technical field of single-track hoists in coal mines, and particularly to a detection device for the load-bearing capacity of a single-track hoist track. Background Art

[0002] The explosion-proof single-track hoist locomotive in coal mines, as an important auxiliary transportation equipment in coal mines, is widely used for transporting materials, personnel, and equipment. The existing single-track hoist locomotive tracks are generally made of DIN standard (German national standard) I140E or I140V specifications, and the tracks are usually suspended at the top of the roadway by steel chains through an anchoring mechanism. To ensure the safe operation of the single-track hoist locomotive on the single-track hoist track, it is necessary to regularly check the state of the single-track hoist track. At present, the detection of the single-track hoist track mainly focuses on detecting whether there are defects in the track itself. For example, a coal mine underground single-track hoist track flaw detection device and method disclosed in a patent document with an application publication number of CN116068051A uses ultrasonic probes to detect the flaws of the track. The intelligent detection device for the single-track hoist track in coal mines disclosed in a patent document with an application publication number of CN118168596A can effectively detect defects such as misalignment, deformation and bending, loosening and falling off of track connectors of the single-track hoist track. However, the existing single-track hoist track detection devices mainly focus on detecting whether there are defects in the track itself, while the detection devices for the load-bearing capacity of the single-track hoist track are relatively rare. However, if the load-bearing capacity of the single-track hoist track cannot be effectively detected, there will be major safety accidents caused by the detachment and derailment of the single-track hoist track during the operation of the single-track hoist locomotive. At present, the main method for detecting the load-bearing capacity of the single-track hoist track in coal mines is to use a tensiometer to detect the anchoring force of the anchor bolt suspending the track. This method has a high labor intensity for the detection personnel, is cumbersome to operate, has low detection efficiency and there are certain safety risks. Summary of the Invention

[0003] The object of the present invention is to provide a detection device for the load-bearing capacity of a single-track hoist track to solve the problems existing in the prior art.

[0004] The technical solution of the present invention is: the monorail crane track bearing capacity detection device of the present invention has the following structural features: it includes a mounting seat movably arranged on the monorail crane track, two loading cylinders rotatably arranged on the front and rear sides of the mounting seat and respectively having a cylinder body and a piston rod, a support top member movably arranged on the outer end heads of the piston rods of the two loading cylinders, two swing cylinders arranged on the mounting seat for driving the two loading cylinders to make tilting and vertical movements respectively, a multi-way hydraulic control valve which is fluidly connected to the two loading cylinders and the two swing cylinders and is fluidly connected to the hydraulic system of the monorail crane train when in use for controlling the actions of the two loading cylinders and the two swing cylinders, a pressure sensor arranged on the oil inlet lines of the two loading cylinders for detecting the loading oil pressure, a main controller arranged on the mounting seat or in the cab of the monorail crane train and electrically connected to the pressure sensor for judging whether the bearing capacity of the current detection position of the monorail crane track is qualified according to the detection value of the pressure sensor, and a display screen arranged in the cab of the monorail crane train for displaying information including pressure detection value and whether the bearing capacity is qualified.

[0005] A further solution is: the above-mentioned mounting seat includes a main body as a mounting base, two walking wheels are arranged on the front and rear sides of the upper part of the main body and can roll on the monorail crane track when in use, a connecting rod is arranged on the left and right ends of the main body for connecting with the monorail crane train to follow the monorail crane train when in use, a loading cylinder mounting frame is respectively arranged in the middle of the front and rear sides of the main body, and a swing cylinder mounting ear is respectively arranged on the right end of the front and rear sides of the main body.

[0006] A further solution is: the above-mentioned loading cylinder includes a cylinder body and a piston rod, the outer end of the piston rod is a spherical connector, and a mounting sleeve and a connecting ear are fixedly provided on the cylinder body; the two loading cylinders are each rotatably arranged on the two loading cylinder mounting frames of the main body of the mounting seat through their mounting sleeves.

[0007] A further solution is: the above-mentioned support member includes a support top portion and a connecting portion that are detachably fixedly connected, and a spherical connector accommodating hole is provided in the support member; the support member is movably connected to the spherical connector of the piston rod of the loading cylinder through its spherical connector accommodating hole, and one is provided at the outer end of the piston rod of each loading cylinder.

[0008] A further solution is: the above-mentioned swing cylinder has a cylinder body and a piston rod, and two swing cylinders are provided. The two swing cylinders are each fixedly connected by its cylinder body to a swing cylinder mounting ear of the mounting seat, and the two swing cylinders are each transmission connected by the outer end of its piston rod to the connecting ear fixedly arranged on the cylinder body of the two loading cylinders.

[0009] A further solution is as follows: The above-mentioned multi-way hydraulic control valve is fixedly arranged on the mounting seat or the monorail crane train. The multi-way hydraulic control valve includes an oil inlet, a first oil outlet, a first oil return port, a second oil outlet, a second oil return port, and an oil drain port. Among them, the oil inlet is connected to the hydraulic power system of the monorail crane train through a liquid connection. The first oil outlet and the first oil return port are connected to two loading cylinders through an oil circuit for liquid connection. The second oil outlet and the second oil return port are connected to two swing cylinders through an oil circuit for liquid connection.

[0010] A further solution is as follows: The above-mentioned pressure sensor is arranged on the oil circuit near the first oil outlet of the multi-way hydraulic control valve, and is used to detect the pressure value of the hydraulic oil output from the first oil outlet of the multi-way hydraulic control valve.

[0011] A further solution is as follows: The above-mentioned monorail crane track bearing capacity detection device further includes a hydraulic lock arranged on the oil circuits of the two swing cylinders respectively, which is used to prevent the vertical erection of the two loading cylinders due to oil pressure relief when the piston rods of the two swing cylinders extend, thus affecting the operation of the monorail crane train.

[0012] The present invention has positive effects: The monorail crane bearing capacity detection device of the present invention can automatically detect the bearing capacity of the monorail crane track conveniently and quickly through the design of the overall structure, filling the blank of such automatic detection devices. Compared with the existing detection devices and methods for the bearing capacity of monorail crane tracks, it can greatly reduce the manpower, improve the detection efficiency and detection safety, and avoid accidents. Description of the Drawings

[0013] Figure 1 It is a schematic structural diagram of some components of the present invention installed on the monorail crane track when in the detection state; Figure 2 For Figure 1 It is an exploded structural diagram of the connection part between the middle support member and the spherical connection head of the piston rod of the loading cylinder in Figure 3 It is a schematic structural diagram of the hydraulic connection and electrical connection of the relevant components of the present invention; Figure 4 For Figure 1 It is a three-dimensional structural diagram when in the non-detection state.

[0014] The reference numerals in the above-mentioned drawings are as follows: Mounting seat 1, body 11, traveling wheels 12, connecting rod 13, loading cylinder mounting frame 14, swing cylinder mounting ear 15; Loading cylinder 2, cylinder block 21, piston rod 22, spherical connection head 22-1, mounting sleeve 23, connecting ear 24; Support member 3, support top 31, connecting part 32, spherical connection head receiving hole 33; Swing cylinder 4; Multi-way hydraulic control valve 5, inlet port P, first outlet port A1, first return port B1, second outlet port A2, second return port B2, drain port T; Pressure sensor 6; main controller 7; display screen 8; hydraulic lock 9; Monorail crane track 100. Specific implementation manner

[0015] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation manners.

[0016] (Embodiment 1) See Figures 1 to 4 , the monorail crane track bearing capacity detection device of this embodiment mainly consists of a mounting seat 1, a loading oil cylinder 2, a supporting member 3, a swinging oil cylinder 4, a multi-way hydraulic control valve 5, a pressure sensor 6, a main controller 7, a display screen 8 and a hydraulic lock 9.

[0017] The mounting seat 1 includes a body 11 as a mounting base. On the front and rear sides of the upper part of the body 11, two walking wheels 12 are provided on each side and can roll on the monorail crane track 100 during use. On the left and right ends of the body 11, a connecting rod 13 is provided on each side for connecting with the monorail crane train to follow the monorail crane train during use. On the middle parts of the front and rear sides of the body 11, loading oil cylinder mounting frames 14 are respectively provided. On the right ends of the front and rear sides of the body 11, a swinging oil cylinder mounting ear 15 is provided on each side.

[0018] The loading oil cylinder 2 includes a cylinder body 21 and a piston rod 22. Different from common piston rods, the outer end of the piston rod 22 in this embodiment is a spherical connecting head 22-1. For the convenience of installation and rotation of the loading oil cylinder 2, an installation sleeve 23 and a connecting ear 24 are fixedly provided on the cylinder body 21. One loading oil cylinder 2 is rotatably provided on each of the two loading oil cylinder mounting frames 14 of the body 11 of the mounting seat 1 through the installation sleeve 23. As a specific implementation manner, the installation sleeve 23 includes a ring body fixedly provided on the outer periphery of the cylinder body 21 and two connecting rods fixedly connected to the ring body. Correspondingly, two perforated rotary support seats are provided on the loading oil cylinder mounting frames 14 of the mounting seat 1. The two connecting rods of the installation sleeve 23 are movably inserted into the two perforated rotary support seats of the loading oil cylinder mounting frames 14, so that the loading oil cylinder 2 is rotatably installed on the loading oil cylinder mounting frames 14 of the mounting seat 1.

[0019] The top support member 3 comprises a top support member 31 and a connection member 32 which are detachably fixedly connected. A spherical connector receiving hole 33 is provided in the top support member 3. The top support member 3 is movably connected to the spherical connector 22-1 of the piston rod 22 of the loading cylinder 2 by its spherical connector receiving hole 33, and one is provided at the outer end of the piston rod 22 of each loading cylinder 2. The loading cylinder 2 uses the spherical connector 22-1 to movably connect with the top support member 3, so that the top support member 3 can swing in any direction relying on the spherical connector 22-1, so that it can effectively adapt to the uneven roadway roof surface when working.

[0020] The swing cylinder 4 has a cylinder body and a piston rod. There are two swing cylinders 4. The two swing cylinders 4 are each fixedly connected by its cylinder body to a swing cylinder mounting ear 15 of the mounting seat 1. The two swing cylinders 4 are each transmission connected by the outer end of its piston rod to a connecting ear 24 fixedly arranged on the cylinder body 21 of the two loading cylinders 2. Therefore, under the drive of the two swing cylinders 4, the two loading cylinders 2 can be tilted so that the supporting top members 3 fixed at the upper ends of the two loading cylinders 2 are tilted and lower than the upper end surface of the monorail crane track 100, thereby not affecting the device of this embodiment to follow the movement of the monorail crane train when not being detected.

[0021] The multi-way hydraulic control valve 5 is hydraulically connected to the two loading cylinders 2 and the two swing cylinders 4, and is used to control the movement of the two loading cylinders 2 and the two swing cylinders 4. The multi-way hydraulic control valve 5 can be fixed on the mounting seat 1, or can be arranged on the monorail crane train. The multi-way hydraulic control valve 5 is a commercially available part, which includes an oil inlet P, a first oil outlet A1, a first oil return port B1, a second oil outlet A2, a second oil return port B2 and an oil drain port T; wherein the oil inlet P is fluidly connected to the hydraulic power system of the monorail crane train, the first oil outlet A1 and the first oil return port B1 are fluidly connected to the two loading cylinders 2 through an oil circuit, and the second oil outlet A2 and the second oil return port B2 are fluidly connected to the two swing cylinders 4 through an oil circuit.

[0022] The pressure sensor 6 is used to detect the pressure value of the hydraulic oil output from the first oil outlet A1 of the multi-way hydraulic control valve 5 ; the pressure sensor 6 is arranged on the oil circuit close to the first oil outlet A1 of the multi-way hydraulic control valve 5 .

[0023] The main controller 7 and the display screen 8 are arranged in the cab of the monorail crane train; the display screen 8 and the aforementioned pressure sensor 6 are electrically connected to the main controller 7; the main controller 7 is used to receive the detection value of the pressure sensor 6 and determine whether the bearing capacity of the monorail crane track at the detection location is qualified; the display screen 8 is used to display information including the pressure detection value sent by the pressure sensor 6 forwarded by the main controller 7 and the judgment result of the main controller, so that the detection personnel can intuitively grasp the detection situation while sitting in the cab.

[0024] The hydraulic lock 9 is provided as a preferred mode, with one hydraulic lock 9 provided on the oil circuits of each of the two swing cylinders 4, which is used to prevent the piston rods of the two swing cylinders 4 from extending and causing the two loading cylinders 2 to erect due to oil pressure relief, thus affecting the operation of the monorail crane train, and further enhancing the reliability of the device in this embodiment during use.

[0025] The working principle and process of the monorail crane track bearing capacity detection device in this embodiment are briefly described as follows: When the monorail crane track bearing capacity detection device in this embodiment is in use, the four traveling wheels 12 on its mounting base 1 can move on the monorail crane track 100. The connecting rods 13 at the left and right ends are connected to the monorail crane train and can be arranged in the monorail crane train and follow the monorail crane train. When it runs to the place where the bearing capacity of the monorail crane track 100 needs to be detected, the monorail crane train stops. The piston rods of the two swing cylinders 4 are retracted through the multi-way hydraulic control valve 5, thereby driving the two loading cylinders 2 that are in an inclined state during the train operation to vertically erect. The piston rods 22 of the two loading cylinders 2 are extended upward through the multi-way hydraulic control valve 5 to drive the upper end surfaces of the supporting parts 31 of the two supporting members 3 to abut against the roof of the coal mine roadway. Then, the hydraulic pressure of the two loading cylinders 2 is continuously increased through the multi-way hydraulic control valve 5 until the pressure sensor 6 detects that the hydraulic value applied to the two loading cylinders 2 currently reaches the threshold value built into the main controller 7. The main controller 7 then determines that the bearing capacity of the monorail crane track at the current position is qualified; if abnormal situations such as derailment occur on the monorail crane track at the current position before the set threshold value is reached during the loading process, it is determined as unqualified. After the detection at this place is completed, as described above, the monorail crane train runs to the next detection point for detection.

[0026] As can be seen from the above, the monorail crane bearing capacity detection device in this embodiment can conveniently and quickly automatically detect the bearing capacity of the monorail crane track, filling the gap of such automatic detection devices. Compared with the existing monorail crane track bearing capacity detection devices and methods, it can greatly reduce the manpower, improve the detection efficiency and detection safety, and avoid accidents.

[0027] The above embodiments are descriptions of the specific implementation manners of the present invention, rather than limitations on the present invention. Those skilled in the relevant technical fields can also make various transformations and changes to obtain corresponding equivalent technical solutions without departing from the spirit and scope of the present invention. Therefore, all equivalent technical solutions should be included in the patent protection scope of the present invention.

Claims

1. A monorail crane track bearing capacity detection device, characterized in that: It includes a mounting seat movably arranged on the monorail crane track, two loading cylinders rotatably arranged on the front and rear sides of the mounting seat and respectively having a cylinder body and a piston rod, a supporting top member movably arranged on the outer end heads of the piston rods of the two loading cylinders, two swing cylinders arranged on the mounting seat and respectively used to drive the two loading cylinders to make tilting and vertical movements, a multi-way hydraulic control valve which is fluidly connected to the two loading cylinders and the two swing cylinders and is fluidly connected to the hydraulic system of the monorail crane train when in use for controlling the actions of the two loading cylinders and the two swing cylinders, a pressure sensor arranged on the oil inlet lines of the two loading cylinders for detecting the loading oil pressure, a main controller arranged on the mounting seat or in the cab of the monorail crane train and electrically connected to the pressure sensor for judging whether the bearing capacity of the current detection position of the monorail crane track is qualified according to the detection value of the pressure sensor, and a display screen arranged in the cab of the monorail crane train for displaying information including pressure detection value and whether the bearing capacity is qualified.

2. The monorail crane track load-bearing capacity detection device according to claim 1, characterized in that: The mounting seat includes a main body as a mounting base, two walking wheels are arranged on the front and rear sides of the upper part of the main body and can roll on the monorail crane track when in use, a connecting rod is arranged on the left and right ends of the main body and is used to connect with the monorail crane train to follow the monorail crane train when in use, a loading cylinder mounting frame is respectively arranged in the middle of the front and rear sides of the main body, and a swing cylinder mounting ear is respectively arranged on the right end of the front and rear sides of the main body.

3. The monorail crane track load-bearing capacity detection device according to claim 2, characterized in that: The loading cylinder comprises a cylinder body and a piston rod, the outer end of the piston rod is a spherical connector, and a mounting sleeve and a connecting ear are fixedly provided on the cylinder body; each of the two loading cylinders is rotatably arranged on the two loading cylinder mounting frames of the mounting seat body through its mounting sleeve.

4. The monorail crane track load-bearing capacity detection device according to claim 3 is characterized in that: The support top member includes a support top portion and a connecting portion that are detachably fixedly connected, and a spherical connector accommodating hole is provided in the support top member; the support top member is movably connected to the spherical connector of the piston rod of the loading cylinder through its spherical connector accommodating hole, and one is provided at the outer end of the piston rod of each loading cylinder.

5. The monorail crane track load-bearing capacity detection device according to claim 2, characterized in that: The swing cylinder comprises a cylinder body and a piston rod. Two swing cylinders are provided. Each of the two swing cylinders is fixedly connected to a swing cylinder mounting ear of a mounting seat by its cylinder body. Each of the two swing cylinders is transmission-connected to a connecting ear fixedly arranged on the cylinder bodies of two loading cylinders by the outer end of its piston rod.

6. The monorail crane track load-bearing capacity detection device according to claim 1, characterized in that: The multi-way hydraulic control valve is fixed on a mounting seat or a monorail crane train, and comprises an oil inlet, a first oil outlet, a first oil return port, a second oil outlet, a second oil return port and an oil drain port; wherein the oil inlet is fluidly connected to a hydraulic power system of the monorail crane train, the first oil outlet and the first oil return port are fluidly connected to two loading cylinders via an oil circuit, and the second oil outlet and the second oil return port are fluidly connected to two swing cylinders via an oil circuit.

7. The monorail crane track load-bearing capacity detection device according to claim 6, characterized in that: The pressure sensor is arranged on the oil circuit close to the first oil outlet of the multi-way hydraulic control valve, and is used to detect the pressure value of the hydraulic oil outputted from the first oil outlet of the multi-way hydraulic control valve.

8. The monorail crane track load-bearing capacity detection device according to claim 6, characterized in that: It also includes a hydraulic lock arranged on each of the oil circuits of the two swing oil cylinders to prevent the two loading oil cylinders from being erected due to oil pressure relief when the piston rods of the two swing oil cylinders are extended, affecting the operation of the monorail crane train.

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