Electric cylinder type self-moving tail of belt conveyor for driving working face

Abstract

The utility model provides an electric cylinder type self-moving tail of a belt conveyor for a driving working face, which belongs to the technical field of coal mine equipment and comprises a middle rack guide rail, a tail part arranged at one end of the middle rack guide rail, an impact idler set arranged on the middle rack guide rail and external rails arranged on two sides of the middle rack guide rail, a wheel assembly is arranged on the external track in a sliding mode, a deviation adjusting mechanism is arranged below the middle rack guide rail and comprises a base provided with a deviation adjusting electric cylinder capable of outputting in two directions in the length direction, and sliding seats arranged on the base in a sliding mode are hinged to the two telescopic ends of the deviation adjusting electric cylinder correspondingly; a protective cover used for protecting the deviation adjusting electric cylinder is arranged above the base. A height adjusting electric cylinder which is vertically arranged is hinged to the wheel assembly; a pushing electric cylinder is hinged between the middle rack guide rail and the external rail. A traditional hydraulic cylinder is replaced by the electric cylinder, so that the overall weight is reduced, and the use convenience is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of coal mine equipment, in particular to the technical field of coal mine comprehensive mining and excavation equipment, and specifically to an electric cylinder type self-moving tail of a belt conveyor for an excavation working face. Background Art

[0002] The self-moving tail is used for the belt conveyor of the coal mine comprehensive mining excavation working face. It is connected with the secondary conveyor belt of the tunneling machine and can move automatically as the tunneling working face advances. The movement of the tail of the tunnel can be dragged or self-moved. The dragging type needs to be connected to the tunneling machine for dragging, and requires multiple manual operations, which is unsafe. There are currently two main types of self-moving tails, one is the crawler self-moving tail, and the other is the walking self-moving tail; both types of self-moving tails can achieve automatic movement of the tail.

[0003] In the patent document with publication number CN219313831U, a self-moving tail of a belt conveyor on an excavation working face is provided, which includes a bearing assembly and a main control hydraulic pipeline running through the front and rear of the bearing assembly. The bearing assembly includes a bearing section, and a plurality of bearing sections are connected end to end. A return roller seat is connected to the front end of the bearing assembly, and the bearing assembly and the return roller seat are connected by a pin shaft. A steering device is installed at the front end of the return roller seat, and a hydraulic pump station is straddled on the upper part of the bearing assembly. A control valve group is installed on the side of the hydraulic pump station. A liquid inlet pipe and a liquid return pipe are connected between the control valve group and the hydraulic pump station. Support shoes are provided on both sides of the tail of the bearing assembly, and the support shoes are connected to a top braking device.

[0004] However, the driving mechanism in the above patent adopts a hydraulic control system. During the use of the hydraulic control system, there are factors such as leakage and different pipe distances, which affect the smoothness and correctness of the movement, making it impossible for the hydraulic transmission to guarantee a strict transmission ratio. In addition, the hydraulic transmission requires a separate hydraulic pump station, which is not very convenient in actual use. Utility Model Content

[0005] In order to solve the problem that the hydraulic control system of the prior art is inconvenient to use, the utility model provides an electric cylinder type self-moving tail of a belt conveyor for a tunneling working face. In the utility model, the weight of the whole device can be reduced by using an electric cylinder instead of a hydraulic cylinder, so that it is convenient to use.

[0006] The technical solution adopted by the electric cylinder type self-moving tail of a belt conveyor for a tunneling working face in the utility model is:

[0007] The utility model provides an electric cylinder type self-moving tail of a belt conveyor for a tunneling working face, comprising an intermediate frame guide rail, a tail portion arranged at one end of the intermediate frame guide rail, a buffer roller group arranged on the intermediate frame guide rail, and external rails arranged on both sides of the intermediate frame guide rail, wherein wheel assemblies are slidably arranged on the external rails, and is characterized in that: an offset adjustment mechanism is arranged below the intermediate frame guide rail, the offset adjustment mechanism comprises a base provided with an offset adjustment electric cylinder capable of bidirectional output along the length direction, the two telescopic ends of the offset adjustment electric cylinder are both hinged with a slide seat slidably arranged on the base, and a protective cover for protecting the offset adjustment electric cylinder is arranged above the base;

[0008] A vertically arranged height-adjusting electric cylinder is hinged on the wheel assembly, and the top end of the height-adjusting electric cylinder is connected to the middle frame guide rail through a fixed seat;

[0009] A push electric cylinder is hingedly connected to the middle frame guide rail, and one end of the push electric cylinder away from the middle frame guide rail is connected to the external track.

[0010] A further improvement of the technical solution of the utility model is that a deviation adjustment bracket connected to the driving part of the deviation adjustment electric cylinder is arranged on the base, and a first ear seat hinged to the transmission part of the deviation adjustment electric cylinder is also arranged on the base, and the two telescopic ends of the deviation adjustment electric cylinder are hinged to the corresponding sliding seat through the second ear seat.

[0011] A further improvement of the technical solution of the utility model is that a connecting plate connected to the middle frame guide rail is fixedly arranged above each second ear seat.

[0012] A further improvement of the technical solution of the utility model is that a vertical sleeve is fixedly provided at the lower part of each fixing seat, and the telescopic end of the height-adjusting electric cylinder passes through the sleeve and is hinged to the third ear seat in the corresponding wheel assembly.

[0013] A further improvement of the technical solution of the utility model is that the transmission part of the height-adjusting electric cylinder is hinged to the upper part of the fixing seat through the fourth ear seat.

[0014] A further improvement of the technical solution of the utility model is that the transmission part of the push electric cylinder is connected to the intermediate frame guide rail through a fifth ear seat fixedly arranged on the intermediate frame guide rail, and the telescopic end of the push electric cylinder is connected to the external rail through a sixth ear seat fixedly arranged on the external rail.

[0015] A further improvement of the technical solution of the utility model is that it also includes a control mechanism for controlling the deviation adjusting electric cylinder, the height adjusting electric cylinder, and the push electric cylinder, the control mechanism includes an explosion-proof electric control box fixedly arranged above the middle frame guide rail and provided with a grounding rod, and the explosion-proof electric control box is provided with an explosion-proof switch for controlling the deviation adjusting electric cylinder, the height adjusting electric cylinder, and the push electric cylinder.

[0016] A further improvement of the technical solution of the utility model is that a cable for transmitting power is arranged between the explosion-proof switch and the corresponding electric cylinder, the outer fixed sleeve of the cable is provided with a sheath for protecting the cable body, and a leakage protector is arranged between each cable and the corresponding explosion-proof switch.

[0017] A further improvement of the technical solution of the utility model is that the intermediate frame guide rail includes a plurality of guide rail bodies connected end to end in sequence, and the external rail includes a plurality of rail bodies connected end to end in sequence; wherein gaps are provided between two adjacent guide rail bodies and between two adjacent rail bodies and are connected through a connecting seat.

[0018] A further improvement of the technical solution of the utility model is that the motors in the deviation adjustment electric cylinder, the height adjustment electric cylinder, and the push electric cylinder are all explosion-proof motors.

[0019] The beneficial effects of the utility model are:

[0020] 1. The electric cylinder type self-moving machine tail of the belt conveyor used in the excavation working face is driven by electricity as the power source through the electric cylinder set up, replacing the traditional technology of self-contained high-pressure emulsion pump station as the power. The electric cylinder has a simple structure and does not need to be equipped with an emulsion pump station, emulsion tank, hose, valve, etc., thereby reducing the overall weight; at the same time, there is no need to consider the leakage and cleaning of the pipeline caused by the hydraulic system, and there is no need to replace the seals. It only needs to be lubricated regularly, which is convenient for maintenance and reduces maintenance costs.

[0021] 2. The electric cylinder self-moving machine tail of the belt conveyor used in the excavation working face is driven by an electric cylinder. Remote control can be achieved through precise speed control of the electric cylinder.

[0022] 3. The electric cylinder self-moving machine tail of the belt conveyor used in the excavation working face can detect and feedback the working status of the equipment through the advanced sensors and control systems, prevent accidents and improve the stability of equipment operation.

[0023] 4. In the tail of the electric cylinder self-moving machine of the belt conveyor used in the excavation working face, the servo controller frequency in the electric system is consistent, which can achieve the synchronization consistency of the actions of multiple groups of electric cylinders and greatly increase the response speed; at the same time, the electric cylinder uses a high-precision screw as a transmission element, with high transmission efficiency, which can reach more than 90%.

[0024] 5. The excavation working face uses a belt conveyor electric cylinder self-moving machine tail, which uses electricity as the power source, greatly reducing energy loss, causing little pollution to the environment, and is energy-saving and environmentally friendly.

[0025] 6. The electric cylinder self-moving machine tail of the belt conveyor used for the excavation working face has a gap and a connecting seat set up. When the device as a whole is in an uphill or downhill or uneven tunnel section, the equipment can adapt to a slope angle of ±5 degrees. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of an electric cylinder type self-moving tail of a belt conveyor for a tunneling working face provided by an embodiment of the utility model;

[0027] Figure 2 It is a structural schematic diagram of an electric cylinder type self-moving tail adjustment mechanism of a belt conveyor for a tunneling working face provided by an embodiment of the utility model;

[0028] Figure 3 The utility model provides a belt conveyor electric cylinder self-moving tail for excavation working face. Figure 1 A schematic diagram of the structure of part A;

[0029] Figure 4 The utility model provides a belt conveyor electric cylinder self-moving tail for excavation working face. Figure 1 A schematic diagram of the structure of part B;

[0030] Figure 5 The utility model provides a belt conveyor electric cylinder self-moving tail for excavation working face. Figure 1 A schematic diagram of the structure of the C part;

[0031] Figure 6 The utility model provides a belt conveyor electric cylinder self-moving tail for excavation working face. Figure 1 Schematic diagram of the structure of part D.

[0032] In the attached drawings: 1. middle frame guide rail; 11. buffer roller group; 12. guide rail body; 2. tail; 3. external track; 31. wheel assembly; 32. track body; 4. deviation adjustment mechanism; 41. base; 42. deviation adjustment electric cylinder; 43. slide seat; 44. protective cover; 45. deviation adjustment bracket; 46. first ear seat; 47. second ear seat; 48. connecting plate; 5. height adjustment electric cylinder; 51. fixed seat; 52. sleeve; 53. third ear seat; 54. fourth ear seat; 6. push electric cylinder; 61. fifth ear seat; 62. sixth ear seat; 7. explosion-proof electric control box; 8. gap; 9. connecting seat. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in combination with specific implementation methods and with reference to the accompanying drawings. In the following description, the description of the known structure and technology is omitted to avoid unnecessary confusion of the concept of the utility model.

[0034] Embodiment 1

[0035] First reference Figure 1 ,according to Figure 1 It can be seen that the utility model includes an intermediate frame guide rail 1, one end of which is provided with a tail portion 2, and a buffer roller group 11 arranged in a U shape is provided above the intermediate frame guide rail 1, and external rails 3 are provided on both sides of the intermediate frame guide rail 1.

[0036] Continue to refer Figure 1 , multiple groups of adjustment mechanisms 4 are arranged below the middle frame guide rail 1, and each group of adjustment mechanisms 4 can be referred to in the specific setting Figure 2 ,according to Figure 2 It can be seen that each set of deviation adjustment mechanism 4 includes a base 41 located below the middle frame guide rail 1, and the upper part of each base 41 is slidably connected to two slides 43, and an deviation adjustment electric cylinder 42 capable of bidirectional output is arranged between the two slides 43, and the transmission part of the deviation adjustment electric cylinder 42 is hinged to the base 41 through a first ear seat 46, and the telescopic end of the deviation adjustment electric cylinder 42 is hinged to the corresponding slide 43 through a second ear seat 47; continue to refer to Figure 2 An adjustment bracket 45 is also provided on the base 41, and the adjustment bracket 45 is fixedly connected to the base 41 and the driving part of the adjustment electric cylinder 42 respectively, and the top of each slide 43 is connected to the middle frame guide rail 1 through a connecting plate 48, thereby connecting the adjustment mechanism 4 as a whole to the middle frame guide rail 1.

[0037] Continue to refer Figure 2 In order to protect the deflection adjusting electric cylinder 42 on the base 41 in the present invention, a protective cover 44 for covering the base 41 is connected to the base 41 by bolts.

[0038] Continue to refer Figure 1 The outer rail 3 is slidably connected with a wheel assembly 31, each wheel assembly 31 is connected to the middle frame rail 1 through a vertically arranged height adjustment electric cylinder 5. The height adjustment electric cylinder 5 can be referred to in the specific arrangement. Figure 3 ,according to Figure 3 It can be seen that the middle frame guide rail 1 is connected to a vertically arranged fixing seat 51 by bolts, the lower part of the fixing seat 51 is fixedly connected to a vertical sleeve 52, and the upper part of the fixing seat 51 is hinged to the transmission part of the height-adjusting electric cylinder 5 through the fourth ear seat 54, and the telescopic end of the height-adjusting electric cylinder 5 passes downward through the sleeve 52 and is hinged to the corresponding wheel assembly 31 through the third ear seat 53.

[0039] Continue to refer Figure 1 The middle frame rail 1 is connected to the external rail 3 through a push cylinder 6. The push cylinder 6 can be referred to in the specific arrangement. Figure 4 ,according to Figure 4It can be seen that the transmission part of the push cylinder 6 is connected to the middle frame rail 1 through the fifth ear seat 61 fixedly set on the middle frame rail 1, and the telescopic end of the push cylinder 6 is connected to the external rail 3 through the sixth ear seat 62 fixedly set on the external rail 3.

[0040] The utility model also includes a control mechanism for controlling the deviation adjusting electric cylinder 42, the height adjusting electric cylinder 5 and the push electric cylinder 6, the control mechanism includes an explosion-proof electric control box 7 fixedly connected to the middle frame guide rail 1, the explosion-proof electric control box 7 is provided with a control system for controlling the deviation adjusting electric cylinder 42, the height adjusting electric cylinder 5 and the push electric cylinder 6 and electrically connected to an external power supply, the control system includes an explosion-proof switch for controlling the deviation adjusting electric cylinder 42, the height adjusting electric cylinder 5 and the push electric cylinder 6, and each electric cylinder corresponds to an explosion-proof switch, and current is transmitted between the explosion-proof switch and the corresponding electric cylinder through a cable.

[0041] In order to prevent harm caused by leakage in the utility model, the explosion-proof electric control box 7 is connected to a grounding rod that can be inserted into the ground, and a leakage protector is arranged between each explosion-proof switch and the corresponding cable; at the same time, in order to protect the cable, a flexible sheath for protecting the cable is fixedly provided on the outside of each cable, thereby preventing the cable from being damaged due to friction when the utility model is in use.

[0042] At the same time, the explosion-proof electric control box 7 is also provided with a sensor for monitoring the circuit, so as to facilitate monitoring the circuit before using the utility model to prevent leakage.

[0043] The working principle of the electric cylinder self-moving tail of the belt conveyor for the excavation working face is: when the self-moving tail of the utility model is in use, the external track 3 and the base 41 of the adjustment mechanism 4 are in contact with the ground, and the grounding rod is inserted into the ground, and all electrical components in the utility model should be grounded; before starting the utility model, the circuit is first detected by the sensor in the explosion-proof electric control box 7 to check whether the circuit is leaking.

[0044] When the self-moving tail of the utility model needs to be moved, first the ground rod is pulled out of the ground, then the height adjustment electric cylinder 5 is controlled to extend, and the middle frame guide rail 1, the tail 2, the buffer roller group 11 and the deviation adjustment mechanism 4 are lifted up until the base 41 of the deviation adjustment mechanism 4 is off the ground, and then the push cylinder 6 is extended, and under the action of the push cylinder 6, the middle frame guide rail 1, the tail 2, the buffer roller group 11 and the deviation adjustment mechanism 4 are moved in the opposite direction to the extension of the push cylinder 6; when the push cylinder 6 is extended to After reaching the maximum length, the height-adjusting electric cylinder 5 is retracted, the middle frame guide rail 1, the machine tail 2, the buffer roller group 11 and the deviation adjustment mechanism 4 are lowered until the base 41 of the deviation adjustment mechanism 4 contacts the ground, and the external track 3 is lifted off the ground, and then the pushing electric cylinder 6 is retracted, thereby driving the external track 3 to move in the direction of the retraction of the pushing electric cylinder 6. When the pushing electric cylinder 6 is retracted to the shortest, the height-adjusting electric cylinder 5 is extended again until the external track 3 contacts the ground, thereby completing one step of the utility model.

[0045] After completing the stepping, if part of the middle frame guide rail 1 is offset, the offset mechanism corresponding to the offset part of the middle frame guide rail 1 can be used to adjust its own position, thereby achieving the purpose of correction; during the specific correction, the position of the slide 43 on the base 41 can be controlled by extending and retracting the telescopic end of the offset adjustment electric cylinder 42, thereby achieving the purpose of adjusting the position of the offset part of the middle frame guide rail 1.

[0046] Embodiment 2

[0047] refer to Figure 1 , Figure 5 and Figure 6 It can be seen that the second embodiment is based on the first embodiment, the intermediate frame guide rail 1 includes a plurality of guide rail bodies 12 connected end to end in sequence, the external rail 3 includes a plurality of rail bodies 32 connected end to end in sequence, a certain gap 8 is provided between two adjacent guide rail bodies 12 and between two adjacent rail bodies 32 at both ends, and the two adjacent guide rail bodies 12 and the two adjacent rail bodies 32 at both ends are hinged together through a connecting seat 9.

[0048] In this embodiment, by providing the gap 8 and the connecting seat 9, the utility model can be applied to the tunnel section with a variable slope angle of ±5 degrees.

[0049] In order to ensure production safety in the present invention, the motors in the deviation adjustment electric cylinder 42, the height adjustment electric cylinder 5, and the push electric cylinder 6 all adopt explosion-proof motors commonly used in the prior art, such as the SB series mining explosion-proof servo motors produced by Debay Automation Technology Co., Ltd.

[0050] Embodiment 3

[0051] In order to facilitate the control of the present invention, the third embodiment is based on the second embodiment, and the explosion-proof motors in the deviation adjustment electric cylinder 42, the height adjustment electric cylinder 5, and the push electric cylinder 6 in the first embodiment have anti-slip self-locking functions and can be controlled separately.

[0052] At the same time, the explosion-proof motors in the deviation adjustment electric cylinder 42, the height adjustment electric cylinder 5, the push electric cylinder 6, and the explosion-proof electric control box 7 control mechanism have automatic control functions and communication interfaces, and can realize centralized control.

[0053] The control system can realize wireless remote control between the handheld terminal and the utility model, and the action of self-moving the tail of the utility model can be completed in situ, remote or remote control mode.

[0054] In the above embodiment, the utility model provides an electric cylinder self-moving tail of a belt conveyor for an excavation working face, which is driven by electricity as a power source through an arranged electric cylinder, replacing the high-pressure emulsion pump station as a power source in the traditional technology. The electric cylinder has a simple structure and does not need to be configured with an emulsion pump station, an emulsion tank, a hose, a valve, etc. There is no need to consider leakage and cleaning pipelines caused by the hydraulic system, and there is no need to replace seals. Only grease needs to be added regularly, which makes maintenance convenient and reduces maintenance costs. At the same time, through the gap and connecting seat set in the utility model, when the device as a whole is in an uphill or downhill slope or an uneven tunnel section, the equipment can adapt to a slope angle of ±5 degrees.

[0055] The above-described embodiments are merely descriptions of preferred implementations of the present invention, and are not intended to limit the concept and scope of the present invention. Without departing from the design concept of the present invention, various modifications and improvements made by ordinary personnel in the field to the technical solution of the present invention should fall within the protection scope of the present invention, and the technical contents of the present invention for protection have been fully recorded in the claims.

Claims

1. An electric cylinder type self-moving tail of a belt conveyor for an excavation working face, comprising an intermediate frame guide rail (1), a tail portion (2) arranged at one end of the intermediate frame guide rail (1), a buffer roller group (11) arranged on the intermediate frame guide rail (1), and external rails (3) arranged on both sides of the intermediate frame guide rail (1), wherein: A wheel assembly (31) is slidably arranged on the external rail (3), and is characterized in that: an adjustment mechanism (4) is arranged below the intermediate frame guide rail (1), and the adjustment mechanism (4) comprises a base (41) provided with an adjustment electric cylinder (42) capable of bidirectional output along the length direction, and both telescopic ends of the adjustment electric cylinder (42) are hinged with a slide seat (43) slidably arranged on the base (41), and a protective cover (44) for protecting the adjustment electric cylinder (42) is arranged above the base (41); A vertically arranged height-adjusting electric cylinder (5) is hingedly connected to the wheel assembly (31), and the top end of the height-adjusting electric cylinder (5) is connected to the middle frame guide rail (1) via a fixing seat (51); The middle frame guide rail (1) is hinged with a push electric cylinder (6), and one end of the push electric cylinder (6) away from the middle frame guide rail (1) is connected to an external rail (3).

2. The electric cylinder self-moving tail of a belt conveyor for a tunneling working face according to claim 1, characterized in that: The base (41) is provided with an adjustment bracket (45) connected to the driving part of the adjustment electric cylinder (42), and the base (41) is also provided with a first ear seat (46) hinged to the transmission part of the adjustment electric cylinder (42), and the two telescopic ends of the adjustment electric cylinder (42) are hinged to the corresponding slide seat (43) through the second ear seat (47).

3. The electric cylinder self-moving tail of a belt conveyor for a tunneling working face according to claim 2, characterized in that: A connecting plate (48) connected to the middle frame guide rail (1) is fixedly arranged above each second ear seat (47).

4. The electric cylinder self-moving tail of a belt conveyor for a tunneling working face according to claim 1, characterized in that: A vertical sleeve (52) is fixedly arranged at the lower part of each fixing seat (51), and the telescopic end of the height-adjusting electric cylinder (5) passes through the sleeve (52) and is hingedly connected to a third ear seat (53) in the corresponding wheel assembly (31).

5. The electric cylinder type self-moving tail of a belt conveyor for a tunneling working face according to claim 4, characterized in that: The transmission part of the height-adjusting electric cylinder (5) is hingedly connected to the upper part of the fixing seat (51) through the fourth ear seat (54).

6. The electric cylinder self-moving tail of a belt conveyor for a tunneling working face according to claim 1, characterized in that: The transmission part of the push electric cylinder (6) is connected to the middle frame guide rail (1) via a fifth ear seat (61) fixedly arranged on the middle frame guide rail (1), and the telescopic end of the push electric cylinder (6) is connected to the external rail (3) via a sixth ear seat (62) fixedly arranged on the external rail (3).

7. The electric cylinder self-moving tail of a belt conveyor for a tunneling working face according to claim 1, characterized in that: It also includes a control mechanism for controlling the deflection adjustment electric cylinder (42), the height adjustment electric cylinder (5), and the push electric cylinder (6), the control mechanism includes an explosion-proof electric control box (7) fixedly arranged above the middle frame guide rail (1) and provided with a grounding rod, and the explosion-proof electric control box (7) is provided with an explosion-proof switch for controlling the deflection adjustment electric cylinder (42), the height adjustment electric cylinder (5), and the push electric cylinder (6).

8. The electric cylinder self-moving tail of a belt conveyor for a tunneling working face according to claim 7, characterized in that: A cable for transmitting power is provided between the explosion-proof switch and the corresponding electric cylinder, and a sheath for protecting the cable body is provided on the outer fixed sleeve of the cable. A leakage protector is provided between each cable and the corresponding explosion-proof switch.

9. The electric cylinder self-moving tail of a belt conveyor for a tunneling working face according to claim 1, characterized in that: The intermediate frame guide rail (1) comprises a plurality of guide rail bodies (12) connected end to end in sequence, and the external rail (3) comprises a plurality of rail bodies (32) connected end to end in sequence; wherein a gap (8) is provided between two adjacent guide rail bodies (12) and between two adjacent rail bodies (32), and the two adjacent rail bodies (32) are connected via a connecting seat (9).

10. The electric cylinder type self-moving tail of a belt conveyor for a tunneling working face according to any one of claims 1 to 9, characterized in that: The motors in the deflection adjustment electric cylinder (42), the height adjustment electric cylinder (5), and the displacement electric cylinder (6) are all explosion-proof motors.

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