Personnel protection device for coal mining equipment

Abstract

The utility model discloses a personnel protection device for coal mining equipment, the coal mining equipment comprises a scraper and a reversed loader, the scraper comprises a scraper headstock, and the reversed loader comprises a reversed loader discharge chute. The personnel protection device for the coal mining equipment comprises a protection mechanism arranged on a reversed loader discharge chute, and the protection mechanism is connected with a scraper conveyor headstock through a chain. The personnel protection device for the coal mining equipment moves forwards along with the head frame of the scraper and the unloading chute of the reversed loader, no power system is needed, self-moving can be achieved, and the use cost is reduced. At the machine head of the scraper machine, when the coal mining machine finishes cutting, the machine head frame moves forwards, the personnel protection device moves forwards along with the machine head frame, and the discharging end is closed; and after the coal mining machine finishes cutting once, the unloading chute of the reversed loader moves forwards to drive the personnel protection device to move forwards, so that a working cycle is closed in time. By using the personnel protection device for the coal mining equipment, potential safety hazards can be effectively avoided, the working efficiency is improved, and the use cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to coal mining equipment technical field especially relates to a personnel protection device for coal mining equipment. BACKGROUND

[0002] The working environment of the underground coal mining face is complex and the space is narrow, in order to ensure normal coal mining of the working face, the front section of the scraper machine and the unloading section of the transfer machine usually leave an unloading section with 1.5-2 times of the pushing step distance, in order to prevent the working face operator from accidentally falling into the transfer machine, the unloading section needs to be closed in time. Due to the existence of coal seam inclination or other uncertain factors, the maintenance personnel may fall into the unloading chute of the transfer machine, and more terrible is that the transfer machine may pull the fallen personnel into the crusher in front, and the crusher may cause fatal injury to the personnel, which has a great safety hazard.

[0003] At present, the commonly used protective devices include electronic fence, infrared sensor monitoring and UWB personnel positioning system. The electronic fence has high cost and high misjudgment rate, and may cause the normally working equipment to stop suddenly due to large coal or gangue, which seriously affects the starting rate and reduces the working efficiency; the infrared sensor monitoring system has low cost, but is easily affected by the surrounding environment and has low running stability; the UWB personnel positioning system needs the personnel to wear in real time to track the position of the related personnel in real time, which increases the labor burden of the workers and affects the normal work, and the system needs to be matched with the related linkage system, which increases the use cost. SUMMARY

[0004] The technical problem to be solved by the utility model is to provide a personnel protection device for coal mining equipment, which can effectively avoid safety hazards, improve working efficiency and reduce use cost.

[0005] To solve the above technical problems, the technical scheme of the utility model is:

[0006] A personnel protection device for coal mining equipment, the coal mining equipment includes a scraper machine and a transfer machine, the scraper machine includes a scraper machine head frame, and the transfer machine includes a transfer machine unloading chute; the personnel protection device for coal mining equipment includes a protection mechanism arranged on the transfer machine unloading chute, and the protection mechanism is connected with the scraper machine head frame through a chain.

[0007] Further, the protection mechanism includes a support frame and a protection plate, one side of the support frame is detachably fixed on the transfer machine unloading chute, the other side of the support frame is provided with a sliding groove, a roller assembly is rotatably arranged in the sliding groove, and the protection plate is arranged on the roller assembly.

[0008] Further, the roller assembly comprises a roller body, an inner side of the roller body is provided with a thrust seat and a gland, the gland is buckled together with the thrust seat; the roller assembly further comprises a connecting shaft, the connecting shaft passes through the thrust seat and the gland, one end of the connecting shaft towards the groove bottom of the sliding groove is defined as a first end, the first end is connected with a nut, a second end of the connecting shaft is connected with the protective plate.

[0009] Further, a bearing is arranged between the roller body and the gland.

[0010] Further, the second end of the connecting shaft is fixedly connected with a connecting plate, and the protective plate is fixedly connected with the connecting plate.

[0011] Further, an upper side wall of the sliding groove is provided with an upper sliding rail, a lower side wall of the sliding groove is provided with a lower sliding rail, and an outer peripheral surface of the roller body is provided with a guide groove in a circumferential direction, the guide groove is used in cooperation with the upper sliding rail and the lower sliding rail.

[0012] Further, a gasket is arranged between the nut and the thrust seat.

[0013] Further, the roller assembly is provided with two.

[0014] Further, the protective plate is provided with a weight-reducing hole.

[0015] Further, the transfer machine discharge chute is provided with a mounting plate, and the support frame is connected to the mounting plate.

[0016] Due to the adoption of the above technical scheme, the coal mining equipment has the following beneficial effects:

[0017] The coal mining equipment comprises a scraper conveyor and a transfer machine, the scraper conveyor comprises a scraper conveyor head frame, and the transfer machine comprises a transfer machine discharge chute.

[0018] As known, in the coal mining process, in order to ensure normal coal mining of a working face, a discharge section with 1.5-2 times of a pushing distance is usually left in a front section of the scraper conveyor head and a discharge section of the transfer machine, and the discharge section needs to be timely closed in order to prevent the working face operator from slipping into the transfer machine discharge chute by accident. When the scraper conveyor head frame moves, the scraper conveyor head frame directly contacts the personnel protection device for the coal mining equipment, pushes the personnel protection device forward, and drives the personnel protection device to move away from the scraper conveyor head frame through the transfer machine discharge chute, so that the personnel protection device effectively avoids the coal mining machine roller, realizes self-movement of the personnel protection device, and realizes timely closure of the transfer machine discharge port when the working face normally works, thereby providing safety protection for the operator.

[0019] The personnel protection device for coal mining equipment can effectively avoid safety hazards, improve work efficiency and reduce use cost.

[0020] At the machine head of the scraper, the machine head frame moves forward after the coal mining machine cuts, the personnel protection device moves forward, and the discharging end is closed; after the coal mining machine cuts one time, the transfer machine discharging groove moves forward, driving the personnel protection device to move forward, thereby realizing timely closure of one working cycle.

[0021] The personnel protection device for coal mining equipment can effectively avoid safety hazards, improve work efficiency and reduce use cost. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is a structure schematic view of the personnel protection device for coal mining equipment of the utility model;

[0023] Figure 2 is Figure 1 a right view;

[0024] Figure 3 is a structure schematic view of the personnel protection device for coal mining equipment (use state) (transfer machine moves forward) of the utility model;

[0025] Figure 4 is a structure schematic view of the personnel protection device for coal mining equipment (use state) (scraper machine head moves forward) of the utility model;

[0026] Figure 5 is a structure schematic view of the personnel protection device for coal mining equipment (use state) (normal working state) of the utility model;

[0027] Figure 6 is Figure 1 a local enlarged view of an A area in the figure;

[0028] In the figure, 1, chain; 2, support frame; 21, sliding groove; 22, upper sliding rail; 23, lower sliding rail; 3, roller assembly; 31, roller body; 32, bearing; 33, thrust seat; 34, gland; 35, connecting shaft; 36, nut; 37, gasket; 38, check ring; 4, connecting plate; 5, protection plate; 51, lightening hole; 6, scraper machine head frame; 7, transfer machine discharging groove; 8, mounting plate. DETAILED DESCRIPTION

[0029] The utility model will be further described below in combination with the drawings and examples.

[0030] In combination with Figure 3 , Figure 4 , and Figure 5As shown in the drawings, the coal mining equipment comprises a scraper and a transfer machine, the scraper comprises a scraper head frame 6, and the transfer machine comprises a transfer machine discharge chute 7.

[0031] In combination Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , and Figure 6 As shown in the drawings, a personnel protection device for a coal mining equipment comprises a protection mechanism arranged on the transfer machine discharge chute 7, and the protection mechanism is connected with the scraper head frame 6 through a chain 1.

[0032] Preferably, the protection mechanism comprises a support frame 2 and a protection plate 5, one end of the chain 1 is fixedly connected with the protection plate 5, and the other end of the chain 1 is fixedly connected with the scraper head frame 6.

[0033] One side of the support frame 2 is detachably fixed on the transfer machine discharge chute 7.

[0034] Preferably, a mounting plate 8 is detachably fixed on the transfer machine discharge chute 7, and the support frame 2 is detachably fixed on the mounting plate 8.

[0035] The other side of the support frame 2 is provided with a sliding groove 21, a roller assembly 3 is arranged in the sliding groove 21 to roll, and the protection plate 5 is arranged on the roller assembly 3. When the roller assembly 3 rolls in the sliding groove 21, the protection plate 5 moves together.

[0036] Preferably, the roller assembly 3 comprises a roller body 31, a thrust seat 33 and a gland 34 are arranged on the inner side of the roller body 31, and the gland 34 is buckled with the thrust seat 33. The roller assembly 3 further comprises a connecting shaft 35, the connecting shaft 35 passes through the thrust seat 33 and the gland 34, and the connecting shaft 35 extends out of the gland 34. One end of the connecting shaft 35 towards the groove bottom of the sliding groove 21 is defined as a first end, the first end is connected with a nut 36, and the second end of the connecting shaft 35 is connected with the protection plate 5. A limiting groove is formed on the outer circumferential surface of the connecting shaft 35 in the circumferential direction, and a check ring 38 is arranged in the limiting groove.

[0037] A bearing 32 is arranged between the roller body 31 and the gland 34.

[0038] Preferably, the second end of the connecting shaft 35 is detachably fixedly connected with a connecting plate 4, and the protection plate 5 is detachably fixedly connected with the connecting plate 4.

[0039] Further preferably, an upper sliding rail 22 is arranged on the upper side wall of the sliding groove 21, a lower sliding rail 23 is arranged on the lower side wall of the sliding groove 21, a guide groove is arranged on the outer circumferential surface of the roller body 31 in the circumferential direction, and the guide groove is used in cooperation with the upper sliding rail 22 and the lower sliding rail 23, so that the rolling of the roller body is smoother.

[0040] A gasket 37 is arranged between the nut 36 and the thrust block 33.

[0041] Preferably, the roller assembly 3 is provided with two.

[0042] Preferably, a weight-reducing hole 51 is arranged on the guard plate 5.

[0043] It is known that, in the process of coal mining, in order to ensure normal coal mining of the working face, the front section of the scraper machine head and the unloading section of the transfer machine usually leave an unloading section of 1.5-2 times the pushing distance, in order to prevent the working face operator from accidentally falling into the transfer machine, it is necessary to close the unloading section in time. When the scraper machine head frame 6 moves, the scraper machine head frame 6 directly contacts the guard plate 5 of the personnel protection device for coal mining equipment of the utility model, pushes the guard plate 5 of the personnel protection device forward, and then drives the guard plate 5 of the protection device to be separated from the scraper machine head frame 6 through the movement of the transfer machine, thereby effectively avoiding the coal mining machine roller, realizing the self-movement of the protection device, and achieving the timely closure of the transfer machine discharge port during normal working of the working face, providing safety protection for the operator.

[0044] The personnel protection device for coal mining equipment of the utility model moves forward with the scraper machine head frame 6 and the transfer machine unloading groove 7, does not need any power system, can realize self-movement, and reduces use cost.

[0045] At the scraper machine head, the scraper machine head frame 6 moves forward after the coal mining machine cuts, the guard plate 5 of the personnel protection device moves forward, and the unloading end is closed; after the coal mining machine cuts one time, the transfer machine unloading groove 7 moves forward, drives the guard plate 5 of the personnel protection device to move forward, and thereby realizes the timely closure of one working cycle.

[0046] The personnel protection device for coal mining equipment of the utility model can effectively avoid safety hazards, improve working efficiency, and reduce use cost.

[0047] The equipment used in coal mining and the coal mining process belong to the common knowledge of those skilled in the art, and will not be described one by one here.

[0048] The installation plate 8 is arranged on the transfer machine unloading groove 7, the guard plate 5 is installed in the sliding groove 21 of the support frame 2 through the roller assembly 3, and the guard plate 5 is connected with the scraper machine head frame 6 through the chain 1.

[0049] When the scraper machine head frame 6 moves forward, the guard plate 5 is directly touched and pushed forward. When the transfer machine unloading groove 7 moves forward, the guard plate 5 is pulled away from the scraper machine head frame 6, thereby realizing the working cycle.

[0050] The personnel protection device for coal mining equipment of the utility model realizes its function by mechanical principle, and can be disassembled and replaced at any time.

[0051] The personnel protection device for coal mining equipment can realize timely protection for workers who mistakenly enter dangerous equipment, and effectively prevent workers from falling into the unloading groove 7 of the transfer machine.

[0052] The technical features with serial number naming (such as first end, second end, etc.) involved in the specification are only for distinguishing various technical features, and do not represent the positional relationship, installation order and working order between the technical features.

[0053] In the description of the specification, it should be understood that the orientation or positional relationship described by "upper side wall", "lower side wall", "upper slide rail", "lower slide rail" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.

[0054] Although the specific embodiments of the utility model are described above, those skilled in the art should understand that the described embodiments are only part of the embodiments of the utility model, not all the embodiments, these are only examples, the protection scope of the utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of the utility model, and without any creative labor, but these changes and modifications all fall within the protection scope of the utility model.

Claims

1. A personnel protection device for use with coal mining equipment, the coal mining equipment comprising a scraper and a transfer machine, the scraper comprising a scraper boom, the transfer machine comprising a transfer machine discharge chute; characterised in that, The personnel protection device for the coal mining equipment comprises a protection mechanism arranged on the unloading chute of the transfer machine, and the protection mechanism is connected with the machine head frame of the scraper machine through a chain; The protection mechanism comprises a support frame and a protection plate, one side of the support frame is detachably fixed on the unloading chute of the transfer machine, the other side of the support frame is provided with a sliding groove, a roller assembly is arranged in the sliding groove and rolls, and the protection plate is arranged on the roller assembly. The roller assembly comprises a roller body, a thrust block and a gland are arranged on the inner side of the roller body, and the gland is buckled with the thrust block; the roller assembly further comprises a connecting shaft, the connecting shaft passes through the thrust block and the gland, one end of the connecting shaft towards the groove bottom of the sliding groove is defined as a first end, the first end is connected with a nut, and the second end of the connecting shaft is connected with the protection plate.

2. The personnel protection device for coal mining equipment of claim 1, wherein, A bearing is arranged between the roller body and the gland.

3. The personnel protection device for coal mining equipment of claim 1, wherein, The second end of the connecting shaft is fixedly connected with a connecting plate, and the protection plate is fixedly connected with the connecting plate.

4. The personnel protection device for coal mining equipment of claim 1, wherein, An upper sliding rail is arranged on the upper side wall of the sliding groove, a lower sliding rail is arranged on the lower side wall of the sliding groove, a guide groove is arranged on the outer circumferential surface of the roller body in the circumferential direction, and the guide groove is used in cooperation with the upper sliding rail and the lower sliding rail.

5. The personnel protection device for coal mining equipment of claim 1, wherein, A gasket is arranged between the nut and the thrust block.

6. The personnel protection device for coal mining equipment of claim 1, wherein, The roller assembly is provided with two.

7. The personnel protection device for coal mining equipment of claim 1, wherein, A weight-reducing hole is arranged on the protection plate.

8. The personnel protection device for coal mining equipment of claim 1, wherein, An installation plate is arranged on the unloading chute of the transfer machine, and the support frame is connected to the installation plate.

Images