Crawler-type movable coal mine supporting hydraulic support

Abstract

The utility model discloses a crawler-type movable coal mine supporting hydraulic support which comprises a lower machine frame, a main crawler belt, an auxiliary crawler belt, a hydraulic lifting device, a supporting hydraulic device, an auxiliary supporting hydraulic device, an upper machine frame, a forepoling protection plate, a forepoling crawler belt, a forepoling protection plate supporting hydraulic device, a forepoling protection plate advancing hydraulic device and a rear supporting protection plate. A hydraulic device, a rear supporting crawler belt, a hydraulic push rod, a main crawler wheel, an auxiliary crawler wheel, an advance supporting crawler belt crawler wheel and a rear supporting crawler belt crawler wheel are supported by the rear supporting protection plate. Compared with the prior art, the crawler type hydraulic support has the advantages that the crawler type hydraulic support innovatively and organically combines the frame type structures of the crawler and the hydraulic support, and novel supporting equipment which has strong walking capacity and strong supporting function is formed. According to the design, the working efficiency is improved, and the adaptability to complex geological conditions is enhanced.

Description

Technical Field

[0001] This utility model patent relates to the field of coal mine hydraulic supports, specifically, to a crawler-type mobile support coal mine hydraulic support. Background Art

[0002] Coal mine hydraulic supports play the role of supporting the coal roof during the coal mining process, providing a safe working area for mining and ensuring the smooth progress of coal mining.

[0003] Ordinary coal mine hydraulic supports have limited adaptability and flexibility. The top beam and base design used in ordinary coal mine hydraulic supports are difficult to adapt to coal mining faces of different shapes and sizes. They lack flexibility and adaptability.

[0004] Ordinary coal mine hydraulic supports have relatively high requirements for the use environment, and are relatively strict on conditions such as working space, ventilation section, tunnel section, and roof.

[0005] In actual applications, the movement speed of ordinary coal mine hydraulic supports is slow and cannot meet the needs of high-intensity coal mining.

[0006] When transporting ordinary coal mine hydraulic supports, a hydraulic support transfer vehicle is required to lift and move them to the working face in a narrow tunnel. Utility Model Content

[0007] The utility model solves the problems of the existing coal mine hydraulic support, such as slow moving speed, poor adaptability to the working environment, and heavy transportation. To achieve the above purpose, the utility model adopts the technical solution of providing a crawler type mobile support coal mine hydraulic support.

[0008] The utility model comprises: a lower frame which is a rectangular frame structure, main crawler wheels connected to both sides of the lower frame through shafts, and an articulated mechanism connected to the upper surface of the lower frame and on the left and right sides of the lower frame.

[0009] The upper frame is a rectangular frame structure, with main track wheels connected to both sides of the upper frame through shafts, and an articulated mechanism connected to the lower side of the upper frame and on the left and right sides of the upper frame.

[0010] There are four main crawler tracks, two of which are located on both sides of the lower frame, and the other two are located on both sides of the upper frame.

[0011] Auxiliary crawlers: There are two auxiliary crawlers, one is located on the lower side of the lower frame, and the other is located on the upper side of the upper frame.

[0012] The main crawler wheels are connected to both sides of the lower frame and the upper frame through shafts and are used to support the main crawler tracks and drive the main crawler tracks to move.

[0013] The auxiliary track wheels are located below the lower frame and above the upper frame, and are used to support the auxiliary track.

[0014] An auxiliary crawler belt is hung between the two main crawler belts hung on the lower frame, and an auxiliary crawler belt is hung between the two main crawler belts hung on the upper frame.

[0015] The hydraulic lifting device is located below the lower frame and is used to lift the auxiliary crawler hanging below the lower frame.

[0016] The supporting hydraulic device connects the lower frame and the upper frame so that the supporting hydraulic device is hinged to the lower frame and the upper frame.

[0017] The auxiliary support hydraulic device connects the lower frame and the support hydraulic device so that the auxiliary support hydraulic device is hinged to the lower frame and the support hydraulic device.

[0018] The hydraulic device for advancing the advance support guard plate is connected to the bottom of the upper frame.

[0019] The advance support guard plate supports the hydraulic device, one side of which is hinged to the advance support guard plate forward hydraulic device, and the other side is hinged to the bottom of the advance support guard plate.

[0020] The advance support guard plate is hinged to the advance support guard plate forward hydraulic device and the advance support guard plate supporting hydraulic device.

[0021] The advance support crawler track wheel is above the advance support guard plate.

[0022] The advance support crawler is hung on the advance support crawler wheel.

[0023] The rear support guard plate is hinged to the rear side of the upper frame.

[0024] The rear support guard plate supports the hydraulic device and is hinged to the lower side of the upper frame and the lower side of the rear support guard plate.

[0025] The rear support track wheels are above the rear support guard plates.

[0026] The rear support track is hung on the rear support track wheel.

[0027] Compared with existing technologies, the advantages of this utility model are: it allows the supported load to advance, and does not repeatedly support the roof within the length of a hydraulic support, making the roof less likely to break. It also enables autonomous movement in narrow alleys, eliminating the need for hydraulic support transfer vehicles to lift and transport the equipment during transportation, thereby significantly improving alleyway space and safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0029] Figure 1 is a schematic diagram of the structure of the hydraulic support provided by the embodiment of the utility model Figure 1 .

[0030] Figure 2 is a schematic diagram of the structure of the hydraulic support provided by the embodiment of the utility model Figure 2 .

[0031] Figure 3 is a schematic diagram of the structure of the hydraulic support provided by the embodiment of the utility model Figure 3 .

[0032] Figure 4 is a schematic diagram of the structure of the hydraulic support provided by the embodiment of the utility model Figure 4 .

[0033] Figure 5 is a schematic diagram of the structure of the hydraulic support provided by the embodiment of the utility model Figure 5 .

[0034] Figure 6 is a schematic diagram of the structure of the hydraulic support provided by the embodiment of the utility model Figure 6 .

[0035] Figure 7 is a schematic diagram of the structure of the hydraulic support provided by the embodiment of the utility model Figure 7 .

[0036] Figure 8 is a schematic diagram of the structure of the hydraulic support provided by the embodiment of the utility model Figure 8 .

[0037] Figure 9 is a schematic diagram of the structure of the hydraulic support provided by the embodiment of the utility model Figure 9 .

[0038] Figure 10 is a schematic diagram of the structure of the hydraulic support provided by the embodiment of the utility model Figure 10 .

[0039] Figure 11 is a schematic diagram of the structure of the hydraulic support provided by the embodiment of the utility model Figure 10 one.

[0040] Figure 12 is a schematic diagram of the structure of the hydraulic support provided by the embodiment of the utility model Figure 10 two.

[0041] Figure 13 is a schematic diagram of the structure of the hydraulic support provided by the embodiment of the utility model Figure 10 three.

[0042] Figure 14 is a schematic diagram of the structure of the hydraulic support provided by the embodiment of the utility model Figure 10 Four.

[0043] Figure 15 is a schematic diagram of the structure of the hydraulic support provided by the embodiment of the utility model Figure 10 five.

[0044] Figure 16 is a schematic diagram of the structure of the hydraulic support provided by the embodiment of the utility model Figure 10 six.

[0045] Figure 17 is a schematic diagram of the structure of the hydraulic support provided by the embodiment of the utility model Figure 10 seven.

[0046] Figure 18 is a schematic diagram of the structure of the hydraulic support provided by the embodiment of the utility model Figure 10 eight.

[0047] In the figure: 1. Lower frame; 2. Main crawler track; 3. Auxiliary crawler track; 4. Hydraulic lifting device; 5. Support hydraulic device; 6. Auxiliary support hydraulic device; 7. Upper frame; 8. Advance support guard plate; 9. Advance support crawler track; 10. Advance support guard plate lifting hydraulic device; 11. Advance support guard plate forward hydraulic device; 12. Rear support guard plate; 13. Rear support guard plate lifting hydraulic device; 14. Rear support crawler track; 15. Hydraulic push rod; 16. Main track wheel; 17. Auxiliary track wheel; 18. Advance support crawler track wheel; 19. Rear support crawler track wheel. DETAILED DESCRIPTION

[0048] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0049] It should be noted that the words “front,” “rear,” “left,” “right,” “up,” and “down” used in the following description refer to directions in a mechanical element.

[0050] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly used by technicians in the technical field of the present invention. The terminology used in the specification of the present invention is for the purpose of describing specific embodiments and is not intended to limit the present invention. The term "and / or / and" used herein includes any and all combinations of one or more related listed items.

[0051] In order to make the contents of the present invention more clearly understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention.

[0052] Please refer to Figures 1 to 18 for an explanation of the crawler-type mobile support hydraulic support provided by the present invention. The hydraulic support includes 1. a lower frame; 2. a main crawler track; 3. an auxiliary crawler track; 4. a hydraulic lifting device; 5. a support hydraulic device; 6. an auxiliary support hydraulic device; 7. an upper frame; 8. an advance support guard plate; 9. an advance support crawler track; 10. an advance support guard plate lifting hydraulic device; 11. an advance support guard plate forward hydraulic device; 12. a rear support guard plate; 13. an rear support guard plate lifting hydraulic device; 14. a rear support crawler track; 15. a hydraulic push rod; 16. a main crawler wheel; 17. an auxiliary crawler wheel; 18. a crawler wheel for the advance support crawler track; and 19. a crawler wheel for the rear support crawler track.

[0053] Main tracks 2 are mounted on both sides of the lower frame 1 and upper frame 7. These tracks are equipped with main track wheels 16 driven by an inter-wheel motor. These tracks are available in rubber, steel, or plastic. Hydraulic lifts 4 are mounted on either side of the lower frame 1, connected to auxiliary track wheels 17. Auxiliary track wheels 17 are mounted on either side of the upper frame 7. Auxiliary tracks 3 are attached to these auxiliary track wheels 17. Hydraulic push rods 15 are fixed to the top of the lower frame 1 and can be extended and retracted both forward and backward. Four supporting hydraulic devices 5 are hinged to the top of the lower frame 1 and the bottom of the upper frame 7. Four auxiliary supporting hydraulic devices 6 are hinged to the top of the lower frame 1 and the four supporting hydraulic devices 5.

[0054] Connected below the upper frame 7 is a hydraulic system 11 for advancing the advance support guard plate. This hydraulic system 11 consists of two parallel waterproof hydraulic rods and is hinged to the advance support guard plate 8. The advance support guard plate 8 has advance support track wheels 18, which are attached to the advance support track 9. The advance support guard plate lifting hydraulic system 10 is hinged to the hydraulic system 11 and the advance support guard plate 8. The rear support guard plate 12 is hinged to the upper frame 7. The rear support guard plate lifting hydraulic system 13 is hinged to the rear support guard plate 12 and the upper frame 7. The rear support guard plate 12 has rear support track wheels 19, which are attached to the rear support track 14.

[0055] During the specific implementation of the present invention, when the crawler-type mobile support coal mine hydraulic support is transported by itself, the hydraulic lifting devices 4 on both sides below the lower frame 1 will lift the auxiliary track wheels 17 and the auxiliary track 3 hung thereon, so as to reduce the straight-line resistance and turning resistance during self-transportation.

[0056] When the crawler-type mobile support coal mine hydraulic support is transported by itself, the support hydraulic device 5 and the auxiliary support hydraulic device 6 will contract to make the upper frame 7 drop as a whole, so that the auxiliary crawler 3 above the upper frame 7 and the main crawler 2 above the upper frame 7 are out of contact with the coal roof, so as to reduce the straight-line resistance and turning resistance during self-transportation.

[0057] When the crawler-type mobile support coal mine hydraulic support is transported by itself, the hydraulic device 10 for raising the advanced support guard plate and the hydraulic device 13 for raising the rear support guard plate will shrink so that the advanced support crawler 9 above the advanced support guard plate 8 and the rear support crawler 14 above the rear support guard plate 12 will rotate downward to make them break away from the contact with the coal roof, so as to reduce the straight-line resistance and turning resistance during self-transportation.

[0058] When the crawler type mobile support coal mine hydraulic support is working on the working surface, the hydraulic lifting devices on both sides below the lower frame 1 will lower the auxiliary track wheels 17 and the auxiliary track 3 they are hanging on to increase the contact area and reduce the pressure on the ground.

[0059] When the crawler-type mobile support coal mine hydraulic support is working on the working face, the supporting hydraulic device 5 and the auxiliary supporting hydraulic device 6 will extend to make the upper frame 7 rise as a whole so that the auxiliary crawler 3 above the upper frame 7 and the main crawler 2 above the upper frame 7 contact the coal roof.

[0060] When the crawler-type mobile support coal mine hydraulic support is working on the working face, the hydraulic device 10 for raising the advanced support guard plate will lift the advanced support guard plate 8, the advanced support track 9, and the advanced support track track wheel 18 together until the upper surface of the advanced support track 9 contacts the coal roof. At the same time, the hydraulic device 13 for raising the rear support guard plate will lift the rear support track 14, the rear support guard plate 12, and the rear support track track wheel 19 together until the upper surface of the rear support track 14 contacts the coal roof.

[0061] When a crawler-type mobile support hydraulic support is operating at the working face, as a coal cutter passes by, the hydraulic device 11 for advancing the advance support plate immediately pushes the advance support plate 8, the advance support crawler track wheels 18, and the advance support crawler track 9 below the coal seam that the coal cutter has passed but not supported. The hydraulic push rod 15 then extends in the forward direction of the crawler-type mobile support hydraulic support, moving the scraper conveyor forward to the next position to receive the falling coal.

[0062] When a crawler-type mobile support hydraulic support is operating at the working face, the main track wheels 16 above the upper frame 7 and the main track wheels 16 below the lower frame 1 output power to drive the main crawler tracks 2 above the upper frame 7 and below the lower frame 1, respectively, to rotate and move the crawler-type mobile support hydraulic support. Simultaneously, the auxiliary crawler tracks 3 and their auxiliary track wheels 17, the advance support crawler tracks 9 and their advance support crawler track wheels 18, and the rear support crawler tracks 14 and their rear support crawler track wheels 19 rotate due to friction. Simultaneously, the hydraulic push rods 15 shorten in the forward direction of the crawler-type mobile support hydraulic support, simultaneously maintaining the scraper conveyor in position for the next coal drop. Simultaneously, the rear side of the hydraulic push rods 15 of the crawler-type mobile support hydraulic support extends, allowing the rear scraper conveyor to catch the top coal that has lost the support of the rear support crawler tracks 14.

[0063] When the crawler-type mobile support coal mine hydraulic support is working on the working surface, the support hydraulic device 5 and the auxiliary support hydraulic device 6 can be extended and retracted to adjust the height and angle of the crawler-type mobile support coal mine hydraulic support to adapt to different mining requirements.

[0064] Afterwards, the hydraulic push rod 15 at the rear of the crawler-type mobile support coal mine hydraulic support will be retracted to pull the rear scraper conveyor forward.

[0065] The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0066] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology, and the circuit connection adopts the conventional connection method in the existing technology. It will not be described in detail here. The content not described in detail in this specification belongs to the existing technology known to professional and technical personnel in this field.

[0067] The above description of the present invention and its embodiments is non-limiting. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by the above, and does not deviate from the purpose of the present invention, without inventive design, a structure and embodiment similar to the technical solution should fall within the scope of protection of the present invention.

Claims

1. A crawler-type mobile support coal mine hydraulic support, characterized in that: include: The machine comprises a lower frame (1), a main crawler (2), an auxiliary crawler (3), a hydraulic lifting device (4), a supporting hydraulic device (5), an auxiliary supporting hydraulic device (6), an upper frame (7), an advanced support guard plate (8), an advanced support crawler (9), an advanced support guard plate supporting hydraulic device (10), an advanced support guard plate forward hydraulic device (11), a rear support guard plate (12), a rear support guard plate supporting hydraulic device (13), a rear support crawler (14), a hydraulic push rod (15), a main crawler wheel (16), an auxiliary crawler wheel (17), an advanced support guard plate Crawler track wheels (18), rear support crawler track wheels (19); wherein: the outer sides of the upper frame (7) and the lower frame (1) are connected to the main track wheels (16), the hydraulic push rod (15) is connected to the upper part of the lower frame (1), the upper part of the upper frame (7) and the lower part of the lower frame (1) are connected to the auxiliary track wheels (17), the lower frame (1) is connected to the auxiliary track wheels (17) through a hydraulic lifting device (4) connected to the lower part of the lower frame (1), and the supporting hydraulic device (5) is hinged to the upper frame ( 7) lower side and the upper side of the lower frame (1), the auxiliary support hydraulic device (6) is hinged to the lower frame (1) and the support hydraulic device (5), the advanced support guard plate forward hydraulic device hinged to the advanced support guard plate (8) is fixed below the upper frame (7), the advanced support guard plate support hydraulic device (10) is hinged to the advanced support guard plate forward hydraulic device (11) and the advanced support guard plate (8), the rear support guard plate support hydraulic device (13) is hinged to the upper frame (7) and the hinged The rear support guard plate (12) of the upper frame (7), the advanced support crawler track wheel (18) and the rear support crawler track wheel (19) are respectively above the advanced support guard plate (8) and above the rear support guard plate (12); the main crawler track (2) is hung on the main crawler wheel (16); the auxiliary crawler track (3) is hung on the auxiliary crawler wheel (17); the advanced support crawler track (9) is hung on the advanced support crawler track wheel (18); and the rear support crawler track (14) is hung on the rear support crawler track wheel (19).

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