Safety protection device of coal mining machine of coal mine machinery

Abstract

The utility model discloses a safety protection device of a coal mining machine of a coal mine machine, which belongs to the field of coal mining machines and comprises an energy discharge protection mechanism mounted at the top of the coal mining machine, and a plurality of force discharge components are annularly arranged at the top of the energy discharge protection mechanism. An inner supporting mechanism is mounted in the energy unloading protection mechanism; wherein the energy discharging protection mechanism comprises an arc-shaped energy discharging plate which is arranged outside the inner supporting mechanism in a sliding and sleeving mode and can elastically reset, and an opening of the arc-shaped energy discharging plate is arranged downwards; the force unloading assembly is rotationally installed on the circumferential side face of the arc-shaped energy unloading plate, and the force unloading assembly comprises a plurality of force unloading rollers which are sequentially assembled. And the arc-shaped outer tooth holder synchronously rotating along with the arc-shaped energy discharging plate drives the energy discharging tooth holder to horizontally move, so that the energy discharging elastic piece deforms to buffer and weaken the impact force.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of coal mining machine, more specifically, relate to a coal mine machinery coal mining machine's safety device. BACKGROUND

[0002] Coal generally needs to use coal mine machinery coal mining machine to carry out mining in the process of mining, since the mining work is carried out in the underground, and when the coal or stone falls in the top of the mine in working, the coal mining machine will be damaged, and then the protection device needs to be used to protect the coal mining machine.

[0003] A safety device for coal mine machinery coal mining machine is disclosed in a Chinese patent with publication number CN218347378U, which includes a support frame and a buffer unit. The four corners of the lower end of the support frame are provided with fixed plates, and mounting holes are formed in the four corners of the upper surface of the fixed plates. The buffer unit includes a slide column, a slide sleeve, and a spring. The slide column is arranged at the four corners of the upper surface of the support frame. The upper end of the slide column is connected with the slide sleeve through sliding. The lower end of the outer arc surface of the slide column is movably connected with the spring. The lower end of the spring is fixedly connected with the upper surface of the support frame. The upper end of the spring is fixedly connected with the slide sleeve. The upper end of the slide sleeve is fixedly connected with the top wall of the arc-shaped protection plate. The buffer unit further includes a baffle, which is arranged at the upper end of the slide sleeve. The baffle is arranged in cooperation with the slide column.

[0004] The safety device for coal mining machine mainly relies on the vertical elastic buffer effect to achieve impact force weakening. This force reduction method has a lower degree of force reduction compared to the ring-shaped force reduction method. In addition, the end of the stainless steel column at the top of the arc-shaped protection plate needs to be replaced as a whole, which increases the use cost of the entire protection device. Therefore, we provide a safety device for coal mine machinery coal mining machine to solve the above problems. SUMMARY

[0005] 1. Technical problem to be solved

[0006] In view of the problems existing in the prior art, the purpose of the utility model is to provide a safety device for coal mine machinery coal mining machine, which can improve the safety protection function of the coal mining machine and reduce the use cost of the entire coal mining machine protection device.

[0007] 2. Technical scheme

[0008] To solve the above problems, the utility model adopts the following technical scheme.

[0009] The application discloses a safety protection device of a coal mine mechanical coal mining machine.

[0010] Further, the energy relief protection mechanism further comprises a bearing base installed on the top of the coal mining machine, two inclined material guide plates are symmetrically and fixedly installed on the top of the bearing base, the arc-shaped energy relief plate is arranged above the bearing base, and the top of the inclined material guide plate is attached to the circumferential side surface of the arc-shaped energy relief plate.

[0011] Further, two arc-shaped outer tooth seats are symmetrically and fixedly installed in the opening of the arc-shaped energy relief plate, two moving seats are symmetrically and slidably arranged on the top of the bearing base, two energy relief tooth seats are fixedly installed between the moving seats, the energy relief tooth seats are engaged with the corresponding arc-shaped outer tooth seats, and energy relief elastic members are arranged between the moving seat and the corresponding inclined material guide plate.

[0012] Further, two arc-shaped guide portions are symmetrically and fixedly arranged on the inner wall of the arc-shaped energy relief plate, a plurality of roller mounting grooves are arranged in an array on the outer wall of the arc-shaped energy relief plate, a magnet positioning groove corresponding to the roller mounting groove is formed in one side of the arc-shaped energy relief plate, and a plug-in channel in communication with the corresponding magnet positioning groove is formed in the interior of the roller mounting groove.

[0013] Further, the energy relief assembly further comprises a roller mounting shaft, the roller mounting shaft is inserted into the corresponding plug-in channel, the energy relief roller is rotatably sleeved on the roller mounting shaft, the energy relief roller is rotatably arranged in the corresponding roller mounting groove, and a magnet disc is fixedly installed at one end of the roller mounting shaft and arranged in the corresponding magnet positioning groove.

[0014] Further, the inner supporting mechanism comprises an arc-shaped inner supporting seat with an opening facing upwards, the arc-shaped energy relief plate is rotatably sleeved on the circumferential side surface of the arc-shaped inner supporting seat, the arc-shaped inner supporting seat is connected with the bearing base through a fixing seat, two arc-shaped guide grooves are symmetrically formed in the outer wall of the arc-shaped inner supporting seat, and the arc-shaped guide portion is slidably arranged in the corresponding arc-shaped guide groove.

[0015] Further, the inner wall of the arc-shaped inner support seat is fixedly provided with a vertical mounting frame, one side of the vertical mounting frame is fixedly provided with an axial sleeve, one side of the arc-shaped energy relief plate close to the magnet positioning groove is attached with an arc-shaped limiting plate, one side of the arc-shaped limiting plate is provided with a mark corresponding to the force relief assembly, the other side of the arc-shaped limiting plate is provided with an extraction magnet which is magnetically attracted to the corresponding magnet disc, the axial sleeve is slidably provided with a pull rod, the pull rod is fixedly provided with a linkage frame on the side surface, the linkage frame is fixedly arranged on the inner wall of the arc-shaped limiting plate, and the surface of the vertical mounting frame is attached with a positioning piece which is threadedly connected with the pull rod.

[0016] 3. Beneficial effects

[0017] Compared with the prior art, the utility model has the advantages that:

[0018] (1) The energy relief tooth seat in the initial state of the scheme is located at the center position of the bearing base, at this time, the energy relief elastic members on the left and right sides are in a natural state, and the energy relief tooth seat and the arc-shaped outer tooth seat always remain in meshing state, when the impact force generated by the falling coal or stone drives the arc-shaped energy relief plate to rotate, the arc-shaped outer tooth seat which rotates synchronously with the arc-shaped energy relief plate drives the energy relief tooth seat to move horizontally, thereby making the energy relief elastic members deform to buffer and weaken the impact force, thereby greatly weakening the impact force of the falling coal or stone on the arc-shaped energy relief plate and the force relief assembly.

[0019] (2) By arranging one inclined guide plate on the left and right sides of the arc-shaped energy relief plate respectively, the coal or stone rolling along the arc-shaped energy relief plate can be rolled onto the inclined guide plate and then slide to the outside of the coal mining machine through the inclined guide plate, thereby playing a safety protection role for the coal mining machine.

[0020] (3) When it is necessary to replace the force relief assembly at a certain position, first, the positioning piece is disassembled, then the extraction magnet is aligned with the magnet disc at the position by rotating the pull rod, then the arc-shaped limiting plate is moved away from the arc-shaped energy relief plate by pulling the pull rod outward, under the action of magnetic attraction, the roller body mounting shaft at the position is extracted, thereby the damaged one or more force relief rollers at the position can be disassembled and replaced with new ones, finally, the arc-shaped limiting plate is attached to the arc-shaped energy relief plate again by pushing the pull rod, at this time, the roller body mounting shaft at the position is sleeved with the force relief rollers again, after the extraction magnet is reset by rotating the pull rod, the positioning piece is reinstalled on the pull rod. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a safety protection device structure schematic view of the coal mining machine of the coal mine machinery of the utility model;

[0022] Figure 2 It is an energy relief protection mechanism structure schematic view of the utility model;

[0023] Figure 3 It is the structure front view of the unloading protection mechanism of the utility model;

[0024] Figure 4 It is the structure schematic diagram of the inner support mechanism of the utility model.

[0025] Figure 5 It is the structure schematic diagram of the inner support mechanism of the utility model.

[0026] Figure 6 It is Figure 5 The structure front view.

[0027] Figure 7 It is the structure schematic diagram of the unloading assembly of the utility model.

[0028] Mark explanation in the drawing:

[0029] 1, unloading protection mechanism; 2, unloading assembly; 3, inner support mechanism; 4, arc unloading plate; 5, unloading roller; 6, bearing base; 7, oblique guide plate; 8, arc outer tooth seat; 9, moving seat; 10, unloading tooth seat; 11, unloading elastic member; 12, arc guide portion; 13, roller body installation groove; 14, magnet positioning groove; 15, plug-in channel; 16, roller body installation shaft; 17, magnet disc; 18, arc inner support seat; 19, fixed seat; 20, arc guide groove; 21, vertical mounting frame; 22, axial sleeve; 23, arc limiting plate; 24, marking element; 25, pull-out magnet; 26, pull-out rod; 27, linkage frame; 28, positioning element. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model; Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments; Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0031] In the description of the utility model, it should be explained that the terms "upper", "lower", "inner", "outer", "top / bottom end" and the like indicate the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0032] In the description of the utility model, it is necessary to explain that, unless there are explicit provisions and limitations, the terms "mounting", "setting", "sleeving / connecting", "connecting" and the like should be understood broadly, for example, "connecting" can be fixed connection, can also be detachable connection, or integrally connected; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to specific circumstances.

[0033] Embodiment 1:

[0034] Please refer to Figures 1-3 A kind of safety device of coal mine machinery coal mining machine, including the energy relief protection mechanism 1 being installed in the top of coal mining machine, several force relieving components 2 are arranged in the top of energy relief protection mechanism 1 in ring, energy relief protection mechanism 1 inside installation has inner support mechanism 3;Wherein, energy relief protection mechanism 1 includes the arc-shaped energy relief plate 4 of elastically reset slidingly sleeved in the outside of inner support mechanism 3, arc-shaped energy relief plate 4 opening is set to downward;Force relieving component 2 is rotatably installed on the side surface of arc-shaped energy relief plate 4, and force relieving component 2 includes the multiple force relieving rollers 5 of sequentially assembled.

[0035] In the embodiment of the utility model, energy relief protection mechanism 1 further includes the load bearing base 6 being installed in the top of coal mining machine, two inclined guide plates 7 are fixedly installed on the top of load bearing base 6 symmetrically, arc-shaped energy relief plate 4 is set above load bearing base 6, and the side surface of arc-shaped energy relief plate 4 is attached on the top of inclined guide plate 7, by setting one inclined guide plate 7 on the left and right sides of arc-shaped energy relief plate 4 respectively, coal or stone that rolls along arc-shaped energy relief plate 4 can be rolled on inclined guide plate 7 and slide to the outside of coal mining machine through inclined guide plate 7, so as to play the safety protection effect to coal mining machine.

[0036] In the embodiment of the utility model, two arc-shaped outer gear seats 8 are fixedly installed in the inside of the opening of arc-shaped energy relief plate 4 symmetrically, two moving seats 9 are symmetrically slidably arranged on the top of load bearing base 6, two energy relief gear seats 10 are fixedly installed between moving seat 9, energy relief gear seat 10 is engaged with corresponding arc-shaped outer gear seat 8, energy relief elastic member 11 is arranged between moving seat 9 and corresponding inclined guide plate 7, and the energy relief gear seat 10 in initial state is at the center position of load bearing base 6, at this time, the energy relief elastic member 11 on the left and right sides is in natural state, and energy relief gear seat 10 and arc-shaped outer gear seat 8 always keep the meshing state, when the impact force generated by the coal or stone that falls drives arc-shaped energy relief plate 4 to rotate, arc-shaped outer gear seat 8 that rotates synchronously with arc-shaped energy relief plate 4 drives energy relief gear seat 10 to move horizontally, and then makes energy relief elastic member 11 produce deformation to buffer and weaken the impact force, so the impact force of coal or stone that falls on arc-shaped energy relief plate 4 and force relieving component 2 can be greatly weakened.

[0037] In the embodiment of the utility model, two arc-shaped guide portions 12 are symmetrically and fixedly arranged on the inner wall of the arc-shaped energy relief plate 4, a plurality of roller body mounting grooves 13 are arranged in an annular array on the outer wall of the arc-shaped energy relief plate 4, a magnet positioning groove 14 corresponding to each roller body mounting groove 13 is formed on one side of the arc-shaped energy relief plate 4, and a plug-in channel 15 communicating with the corresponding magnet positioning groove 14 is formed in the roller body mounting groove 13.

[0038] The force relief assembly 2 further comprises a roller body mounting shaft 16, the roller body mounting shaft 16 is plug-in fitted in the corresponding plug-in channel 15, the force relief roller 5 is rotatably sleeved on the roller body mounting shaft 16, the force relief roller 5 is rotatably fitted in the corresponding roller body mounting groove 13, since each force relief roller 5 is rotatably sleeved on the roller body mounting shaft 16, and the roller body mounting shaft 16 is rotatably inserted in the plug-in channel 15, therefore the impact force generated by the falling coal or stone can be effectively weakened by each force relief roller 5, and a magnet disc 17 fitted in the corresponding magnet positioning groove 14 is fixedly installed at one end of the roller body mounting shaft 16.

[0039] Embodiment 2:

[0040] Please refer to Figures 4-6 The inner support mechanism 3 comprises an arc-shaped inner support seat 18 with an opening facing upwards, the arc-shaped energy relief plate 4 is rotatably sleeved on the circumferential side of the arc-shaped inner support seat 18, the arc-shaped inner support seat 18 and the bearing base 6 are connected through a fixing seat 19, two arc-shaped guide grooves 20 are symmetrically formed on the outer wall of the arc-shaped inner support seat 18, the arc-shaped guide portion 12 is slidably fitted in the corresponding arc-shaped guide groove 20, and through the structure design, the arc-shaped energy relief plate 4 can be limited and guided, so that the arc-shaped energy relief plate 4 can only deflect along the arc-shaped inner support seat 18.

[0041] In the embodiment of the utility model, vertical mounting frame 21 is fixedly installed on the inner wall of arc inner support base 18, axial sleeve 22 is fixedly arranged on one side of vertical mounting frame 21, arc limiting plate 23 is attached on the side of arc energy release plate 4 close to magnet positioning groove 14, marking piece 24 corresponding to each unloading assembly 2 is arranged on one side of arc limiting plate 23, and pull-out magnet 25 magnetically attracted to corresponding magnet disc 17 is installed on the other side of arc limiting plate 23, pull-out magnet 25 in initial state is not aligned with any magnet disc 17, pull-out rod 26 is slidably arranged in axial sleeve 22, linkage frame 27 is fixedly installed on the side surface of pull-out rod 26, linkage frame 27 is fixedly arranged on the inner wall of arc limiting plate 23, and positioning piece 28 threadedly matched with pull-out rod 26 is attached on the surface of vertical mounting frame 21, by the thread cooperation of positioning piece 28 and pull-out rod 26, arc limiting plate 23 is kept attached on one side of arc energy release plate 4, each end of unloading assembly 2 is horizontally limited by arc limiting plate 23, when it is needed to replace unloading assembly 2 at a certain position, positioning piece 28 is first detached, then pull-out magnet 25 is aligned with magnet disc 17 at the position by rotating pull-out rod 26, arc limiting plate 23 is pulled out from arc energy release plate 4 by pulling pull-out rod 26 outward, under the magnetic attraction, roll body mounting shaft 16 at the position is pulled out, thus unloading roll 5 damaged at the position can be detached and replaced by new unloading roll 5, finally, arc limiting plate 23 is attached to arc energy release plate 4 by pushing pull-out rod 26, at this time, roll body mounting shaft 16 at the position is rewrapped with unloading roll 5, after rotating pull-out rod 26 to make pull-out magnet 25 complete reset, positioning piece 28 is reinstalled on pull-out rod 26.

[0042] The above is only the preferred specific implementation of the utility model, but the protection scope of the utility model is not limited to this. Any skilled person in the art can make equivalent replacement or change according to the technical scheme and the improvement concept of the utility model within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.

Claims

1. A safety protection device for a coal mining machine, characterized in that: The energy relief protection mechanism (1) is installed on the top of the coal mining machine, a plurality of force relief assemblies (2) are arranged in a ring shape on the top of the energy relief protection mechanism (1), and an inner supporting mechanism (3) is installed inside the energy relief protection mechanism (1). The energy relief protection mechanism (1) comprises an arc-shaped energy relief plate (4) which is elastically reset and slidably arranged outside the inner supporting mechanism (3), and the arc-shaped energy relief plate (4) is arranged with an opening facing downward. The force relief assembly (2) is rotatably installed on the side surface of the arc-shaped energy relief plate (4), and the force relief assembly (2) comprises a plurality of force relief rollers (5) which are sequentially assembled.

2. A safety device for a coal mining machine as claimed in claim 1 wherein: The energy relief protection mechanism (1) further comprises a bearing base (6) installed on the top of the coal mining machine, two inclined guide plates (7) are symmetrically and fixedly installed on the top of the bearing base (6), the arc-shaped energy relief plate (4) is arranged above the bearing base (6), and the top of the inclined guide plate (7) is attached to the side surface of the arc-shaped energy relief plate (4).

3. A safety device for a coal mining machine as claimed in claim 2, wherein: Two arc-shaped outer tooth seats (8) are symmetrically and fixedly installed inside the opening of the arc-shaped energy relief plate (4), two moving seats (9) are symmetrically and slidably arranged on the top of the bearing base (6), two energy relief tooth seats (10) are fixedly installed between the moving seats (9), the energy relief tooth seat (10) is engaged with the corresponding arc-shaped outer tooth seat (8), and the moving seat (9) is provided with an energy relief elastic element (11) between the corresponding inclined guide plate (7).

4. A safety device for a coal mining machine as claimed in claim 3 wherein: Two arc-shaped guide portions (12) are symmetrically and fixedly arranged on the inner wall of the arc-shaped energy relief plate (4), a plurality of roller body mounting grooves (13) are arranged in an array on the outer wall of the arc-shaped energy relief plate (4), a magnet positioning groove (14) corresponding to the roller body mounting groove (13) is formed on one side of the arc-shaped energy relief plate (4), and a plug-in channel (15) in communication with the corresponding magnet positioning groove (14) is formed in the roller body mounting groove (13).

5. A safety device for a coal mining machine as claimed in claim 4 wherein: The force relief assembly (2) further comprises a roller body mounting shaft (16), the roller body mounting shaft (16) is plug-in matched in the corresponding plug-in channel (15), the force relief roller (5) is rotatably sleeved on the roller body mounting shaft (16), the force relief roller (5) is rotatably matched in the corresponding roller body mounting groove (13), and a magnet disc (17) is fixedly installed at one end of the roller body mounting shaft (16) and matched in the corresponding magnet positioning groove (14).

6. A safety device for a coal mining machine as claimed in claim 5 wherein: The inner supporting mechanism (3) comprises an arc-shaped inner supporting seat (18) with an opening facing upward, the arc-shaped energy relief plate (4) is rotatably sleeved on the side surface of the arc-shaped inner supporting seat (18), the arc-shaped inner supporting seat (18) is connected with the bearing base (6) through a fixing seat (19), two arc-shaped guide grooves (20) are symmetrically formed in the outer wall of the arc-shaped inner supporting seat (18), and the arc-shaped guide portion (12) is slidably matched in the corresponding arc-shaped guide groove (20).

7. A safety device for a coal mining machine as claimed in claim 6 wherein: The inner wall of the arc-shaped inner support seat (18) is fixedly provided with a vertical mounting frame (21), one side of the vertical mounting frame (21) is fixedly provided with an axial sleeve (22), one side of the arc-shaped energy relief plate (4) close to the magnet positioning groove (14) is attached with an arc-shaped limiting plate (23), one side of the arc-shaped limiting plate (23) is provided with a mark (24) corresponding to the force relief assembly (2), the other side of the arc-shaped limiting plate (23) is provided with an extraction magnet (25) magnetically attracted to the corresponding magnet disc (17), the axial sleeve (22) is slidably provided with a pull rod (26), the pull rod (26) is fixedly provided with a linkage frame (27) on the side surface, the linkage frame (27) is fixedly provided on the inner wall of the arc-shaped limiting plate (23), and the surface of the vertical mounting frame (21) is attached with a positioning piece (28) threadedly matched with the pull rod (26).

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