Heightening device for scraper conveyor head

Abstract

The utility model discloses a scraper conveyor head heightening device which comprises a mother section bearing platform, a lengthened section bearing platform, a tail section bearing platform and a plurality of adjustable supporting legs, and the mother section bearing platform, the lengthened section bearing platform and the tail section bearing platform are sequentially connected and fixed backwards from a machine head. A plurality of adjustable supporting legs are respectively and correspondingly fixed below the mother section bearing platform, the lengthened section bearing platform and the tail section bearing platform and are downwards supported to the ground of a roadway; and a cross brace is fixedly arranged between the adjustable supporting legs. The device is simple in structure, convenient to transport and convenient to assemble underground, and the whole device is fixed by adopting a special bracket for processing a steel material, so that the stability of a machine head is improved; a space for cleaning float coal is reserved in the support structure, so that the float coal is convenient to clean, the hidden danger of fire caused by long-time friction between the float coal and the chain is eliminated, and the accident rate is reduced; and repeated recycling can be achieved, a large number of wood board beams are saved, and cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of fixing and modifying equipment in underground coal and gangue transportation systems in coal mines, specifically to a scraper conveyor head raising device. Background Technology

[0002] Scraper conveyors have always been an important electromechanical transportation equipment in the coal industry. When using scraper conveyors to transport coal and gangue, it is common for the scraper conveyor head to overlap with the belt or mine car. This requires raising the scraper conveyor head. The traditional solution is to raise the timber stack during construction and place the scraper conveyor head on the timber stack. However, this can lead to problems such as the timber stack being unstable and collapsing, and the scraper conveyor head becoming misaligned. Moreover, the timber stacks are often made up of stacked beams, making it difficult, time-consuming, and labor-intensive to manually remove loose coal. In some cases, fires can even occur due to the scraper conveyor chain rubbing against loose coal and timber stacks for extended periods if the loose coal is not removed in time. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of the existing technology and provide a scraper conveyor head raising device.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a scraper conveyor head raising device, including a main section bearing platform, an extended section bearing platform, a tail section bearing platform, and several adjustable support legs. The main section bearing platform, the extended section bearing platform, and the tail section bearing platform are connected and fixed in sequence from the head to the rear. The several adjustable support legs are respectively fixed below the main section bearing platform, the extended section bearing platform, and the tail section bearing platform, supporting downward to the roadway floor; cross braces are fixedly installed between the adjustable support legs.

[0005] Furthermore, the main section bearing platform, the extended section bearing platform, and the tail section bearing platform are all welded and fixed into a frame structure by two crossbeams and multiple longitudinal beams, and multiple connecting bolt holes are provided on the outer wall of the longitudinal beams at their corresponding ends.

[0006] Furthermore, each crossbeam has multiple spaced-apart support legs welded to its bottom, which are perpendicular to the crossbeam and extend downwards; the sidewalls of the support legs are provided with connecting through holes.

[0007] Furthermore, a cross brace is provided between adjacent adjustable legs in the front-to-back direction; a connecting rod is installed between two opposite adjustable legs or cross braces in the left-to-right direction, and both ends of the connecting rod are provided with external threads and are connected and fixed by fastening nuts.

[0008] Furthermore, a connecting plate is welded and fixed to one end of the cross brace to facilitate the connection and fixing of two adjacent cross braces.

[0009] Furthermore, when the length of the adjustable leg is greater than 600mm, two adjacent connecting holes are provided in the middle; when the length of the adjustable leg is less than 600mm, no connecting holes are provided in the middle.

[0010] Furthermore, the adjustable outrigger is made of I-beams, with both its top and bottom surfaces being flat; a horizontal support plate is welded and fixed to the bottom of the adjustable outrigger, and holes are drilled in it for ground anchoring.

[0011] Furthermore, the crossbeams and longitudinal beams in the mother section bearing platform, the extended section bearing platform, and the tail section bearing platform are all made of channel steel, and the crossbeams are also provided with multiple mounting holes for connecting and fixing the scraper conveyor; the cross braces are also made of channel steel.

[0012] Furthermore, the adjustable support leg includes an outer sleeve, an inner support rod, and a fixing screw. The lower end of the outer sleeve is open and hollow inside, and its upper end is fixed to the bottom of the corresponding bearing platform by bolts. The outer wall of the outer sleeve is provided with multiple adjustment holes arranged along its length. The inner support rod is slidably inserted into the lower end of the outer sleeve and is provided with a fixing hole. The fixing screw passes laterally through the corresponding adjustment hole and the fixing hole, which can adjust the extension length of the inner support rod relative to the outer sleeve. A support plate is fixed to the bottom of the inner support rod.

[0013] Compared with the prior art, the present invention has the following advantages: The present invention has a simple structure and is easy to transport and assemble underground. The entire device is fixed with a special steel support, which increases the stability of the machine head. The support structure has reserved space for cleaning floating coal, which facilitates cleaning of floating coal, eliminates the fire hazard caused by long-term friction between floating coal and the chain, and reduces the accident rate. It can also be repeatedly recycled, saving a lot of wooden beams and reducing costs. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 for Figure 1 Enlarged view of section A;

[0016] Figure 3 The three views (including top view, right view and front view) of the mother joint support platform in this utility model are shown below.

[0017] Figure 4 The three views (including top view, right view and front view) of the extended section load-bearing platform in this utility model are shown below.

[0018] Figure 5 The following are three views (including top view, right view and front view) of the tail section bearing platform of this utility model;

[0019] Figure 6 This is a schematic diagram of the adjustable support leg in this utility model;

[0020] Figure 7 This is a schematic diagram of the cross brace structure in this utility model;

[0021] Figure 8 This is a schematic diagram of the connecting rod in this utility model;

[0022] In the diagram: 1. Mother section bearing platform, 2. Extended section bearing platform, 3. Tail section bearing platform, 4. Adjustable outrigger, 5. Horizontal brace, 6. Crossbeam, 7. Longitudinal beam, 8. Connecting bolt hole, 9. Outrigger mounting base, 10. Connecting rod, 11. Coal roadway, 12. Connecting roadway, 13. Scraper conveyor head, 14. Scraper conveyor, 41. Connecting hole, 42. Support plate, 51. Connecting plate. Detailed Implementation

[0023] It should be noted that in the description of this utility model, terms such as "upper", "lower", "left", "right", "front", "back", "bottom", and "top" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only used to facilitate the description of the structural relationship of each component in this utility model and do not specifically mean that any component in this utility model must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as a limitation on this utility model.

[0024] Furthermore, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings:

[0026] like Figure 1 As shown, a scraper conveyor head raising device, with the scraper conveyor head 13 of the scraper conveyor 14 it carries as the front, specifically includes a mother section carrying platform 1, an extended section carrying platform 2, a tail section carrying platform 3, and several adjustable support legs 4, combined with... Figures 3 to 5As shown, the manufacturing principle of the mother section bearing platform 1, the extended section bearing platform 2, and the tail section bearing platform 3 is the same. They are all constructed by welding two crossbeams 6 and multiple longitudinal beams 7 together to form a frame structure. Both the crossbeams 6 and longitudinal beams 7 are made by cutting channel steel. Each crossbeam 6 has multiple mounting holes at its top for connecting and fixing the scraper conveyor 14, and multiple connecting bolt holes 8 are provided on the outer walls of the two longitudinal beams 7 at the ends of the bearing platform. (Refer to...) Figure 2 As shown, the main section bearing platform 1, the extended section bearing platform 2, and the tail section bearing platform 3 are connected sequentially from front to back, and are fixed by connecting bolts passing through the corresponding connecting bolt holes 8, and are at the same horizontal height.

[0027] In the aforementioned main section bearing platform 1, extended section bearing platform 2, and tail section bearing platform 3, multiple support leg mounting seats 9 are welded and fixed to the bottom of the two crossbeams 6. These seats are perpendicular to the crossbeams 6 and extend downwards. Each support leg mounting seat 9 has a connecting through hole on its side wall. The aforementioned adjustable supports 4 are correspondingly connected and installed onto the support leg mounting seats 9, and the connection and fixation are completed using bolts and their corresponding nuts. The adjustable supports 4 are made by cutting and processing I-beams. Since the scraper conveyor 14 is used in the coal roadway 11 and connecting roadway 12, its scraper conveyor head 13 is always located at the coal face of the coal roadway 11, and there may be a certain inclination angle in the connecting roadway 12. Therefore, the adjustable supports 4 need to be designed with adjustable lengths according to the actual application location of the coal mine roadway to adapt to the undulations of the roadway. Figure 6 As shown, when the required length of the adjustable support leg 4 is greater than 600mm, two adjacent connecting holes 41 are opened at the upper and middle parts of its intermediate beam wall; when the required length of the adjustable support leg 4 is less than 600mm, only two adjacent connecting holes 41 need to be opened at the upper part of its intermediate beam wall, and no holes are needed in the middle part; the top and bottom surfaces of each adjustable support leg 4 are flat, and a horizontal support plate 42 is welded and fixed to the bottom surface of the adjustable support leg 4, and a support through hole is opened on the horizontal support plate 42.

[0028] The top of the adjustable outrigger 4 is connected and fixed to the bottom of the corresponding support platform, and its bottom is supported to the ground. It is fixed by ground anchors passing through the support through holes on the corresponding support plate 42, which can be compatible with different coal mine geological conditions. If the bottom plate of the local support of the adjustable outrigger 4 is uneven, it can be leveled by pouring ash and sand to ensure the stability of the platform.

[0029] A cross brace 5 is fixedly installed between multiple adjustable legs 4 on the same side as a reinforcing component, combined with... Figure 7As shown, the cross brace 5 is also made of channel steel and has connecting holes. One end of the cross brace 5 is also welded and fixed with a connecting plate 51. The cross brace 5 is connected and installed to the connecting hole 41 on the adjustable support leg 4 to strengthen the stability of the adjustable support leg 4. At the same time, the connecting plate 51 can connect two adjacent cross braces 5 in series, which facilitates the connection and fixing of two adjacent cross braces 5.

[0030] A connecting rod 10 is fixedly installed between two adjustable support legs 4 (referring to two adjustable support legs 4 facing each other in the left-right direction) located in the same group, in conjunction with... Figure 8 As shown, both ends of the connecting rod 10 are provided with external threads, which pass laterally through the corresponding connecting hole 41 on the adjustable support leg 4, and at the same time through the connecting hole on the cross brace 5 at this position, which serves as a bolt fixation. Its exterior is fixed by a fastening nut, which saves the work of fixing a single bolt and also improves the stability of the entire bearing platform.

[0031] In use, after connecting all the above-mentioned components, use a pneumatic hoist to lift the entire raising device according to... Figure 1 Adjustments should be made as shown to stabilize it; to ensure stability, a top plate lifting anchor rod can be installed on the top plate above the scraper conveyor head 13, and a 40T scraper chain can be used for fixation to prevent the risk of the head tipping over.

[0032] As another optimized technical solution of this utility model, the adjustable support leg 4 includes an outer sleeve, an inner support rod, and a fixing screw. The lower end of the outer sleeve is open and hollow inside, and its upper end is detachably connected and fixed to the bottom of the corresponding bearing platform by bolts. Multiple adjustment holes are arranged along the length of the outer sleeve on its outer wall. The inner support rod is slidably inserted into the lower end of the outer sleeve and has at least one fixing hole corresponding to the adjustment hole on the outer sleeve. The fixing screw can pass laterally through the corresponding adjustment hole and fixing hole for adjustment and fixation, adjusting the extension length of the inner support rod relative to the outer sleeve to achieve overall length adjustment of the adjustable support leg 4, adapting to specific lengths required at different positions. A support plate is also fixed to the bottom of the inner support rod to improve support stability.

[0033] Of course, the above description is not intended to limit the present utility model, and the present utility model is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present utility model should also fall within the protection scope of the present utility model.

Claims

1. A scraper conveyor head raising device, characterized in that: It includes a main section support platform, an extended section support platform, a tail section support platform, and several adjustable outriggers. The main section support platform, the extended section support platform, and the tail section support platform are connected and fixed in sequence from the head of the machine to the rear. Several adjustable outriggers are respectively fixed below the main section support platform, the extended section support platform, and the tail section support platform, supporting downwards to the roadway floor. Cross braces are fixedly installed between the adjustable outriggers.

2. The scraper conveyor head raising device according to claim 1, characterized in that: The main section bearing platform, the extended section bearing platform, and the tail section bearing platform are all welded and fixed into a frame structure by two crossbeams and multiple longitudinal beams. Multiple connecting bolt holes are provided on the outer wall of the longitudinal beams at their corresponding ends.

3. The scraper conveyor head raising device according to claim 2, characterized in that: Each crossbeam has multiple spaced-apart support legs welded to its bottom, which are perpendicular to the crossbeam and extend downwards; the side walls of the support legs are provided with connecting through holes.

4. The scraper conveyor head raising device according to claim 1, characterized in that: A cross brace is installed between adjacent adjustable legs in the front-to-back direction; a connecting rod is installed between two opposite adjustable legs or cross braces in the left-to-right direction, and both ends of the connecting rod are provided with external threads and are connected and fixed by fastening nuts.

5. A head raise for an apron conveyor as claimed in claim 4, characterised in that: A connecting plate is welded and fixed to one end of the cross brace.

6. A head raise for an apron conveyor as claimed in claim 4, characterised in that: When the length of the adjustable leg is greater than 600mm, two adjacent connecting holes are provided in the middle; when the length of the adjustable leg is less than 600mm, no connecting holes are provided in the middle.

7. A head raise for an apron conveyor as claimed in claim 4, wherein: The adjustable outrigger is made of I-beams, with both its top and bottom surfaces being flat. A horizontal support plate is welded and fixed to the bottom of the adjustable outrigger, and a ground anchor is drilled in the plate.

8. The scraper conveyor head raising device according to claim 2, characterized in that: The crossbeams and longitudinal beams of the mother section bearing platform, the extended section bearing platform, and the tail section bearing platform are all made of channel steel. The crossbeams are also provided with multiple mounting holes for connecting and fixing the scraper conveyor. The cross braces are also made of channel steel.

9. A head raise for an apron conveyor as claimed in claim 1, wherein: The adjustable support leg includes an outer sleeve, an inner support rod, and a fixing screw. The lower end of the outer sleeve is open and hollow inside, and its upper end is fixed to the bottom of the corresponding support platform by bolts. The outer wall of the outer sleeve has multiple adjustment holes arranged along its length. The inner support rod is slidably inserted into the lower end of the outer sleeve and has a fixing hole. The fixing screw passes laterally through the corresponding adjustment hole and fixing hole, which can adjust the extension length of the inner support rod relative to the outer sleeve. A support plate is fixed to the bottom of the inner support rod.

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