Reversing rotation lifting support based on mine shovel plate carrier

Abstract

The application discloses a reversing rotary lifting support based on a mining shovel plate carrier, relates to the technical field of shovel plate carrier load adjustment, and specifically comprises a bracket, a transmission ring is fixed on the top of the bracket through bolts, and a rotating mechanism is movably connected in the transmission ring and at the top of the bracket; the application is dynamically coupled through the rotating mechanism-limiting mechanism, single power source drives lifting-rotation composite action, the vertical displacement is realized through the cooperation of the lifting groove on the rotating sleeve and the slope of the supporting column, the automatic engagement of the limiting block and the temporary storage circular groove and the decoupling control of rotation start and stop eliminate the delay of function switching, introduce the bimodal constraint mechanism, the limiting block is clamped into the clamping groove on the inside of the lifting frame, the rotation degree of freedom is forcibly locked, after the supporting column reaches the top of the lifting groove, the adjusting column is slid to align the limiting block with the temporary storage circular groove, the mechanical constraint is released, the counterweight block and the independent rotating motor are cancelled, the gear ring-gear meshing transmission and the modular supporting column design are adopted, and the overall machine quality is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of load adjustment of a blade carrier, in particular to a reversing rotary lifting support based on a mine blade carrier. BACKGROUND

[0002] In the modernized coal mine underground working environment, the carrying efficiency and safety of fully mechanized mining equipment directly affect the production benefit of the mine. With the popularization of large mining height working faces, the tonnage of key equipment such as hydraulic supports continues to increase, and the underground roadway space is limited by geological conditions, usually narrow, winding, and uneven. In this environment, the blade carrier is the core equipment for transporting hydraulic supports and coal mining machines;

[0003] The contradiction between the roadway space and the equipment size, the combination of the support carrier and the equipment in the insufficient turning radius, and the interference even safety accidents in the roadway, such as the patent with publication number CN216554007U, the traditional large chain binding type transportation needs frequent position adjustment, which is low in efficiency and has the risk of chain breakage. At the same time, to improve the load capacity, the existing equipment mostly adopts reinforced structures, such as 40-ton blade plates with cross-welded longitudinal beams or weight blocks, but this leads to an increase in the overall weight, further limits the flexibility of turning and lifting, and restricts the angle adjustment of the load in a narrow space. The traditional cylinder-driven blade plate only supports limited angle swinging and cannot meet the multi-degree-of-freedom pose adjustment in complex working conditions.

[0004] Therefore, the chain wheel-chain transmission is used to replace direct jacking, such as the patent with publication number CN211971098U, which mentions a rotary joint arm driven lifting device. The oil cylinder pushes the rotary joint arm to drive the spline spindle, so that the chain wheel retracts the chain to lift the hydraulic support, reducing manual intervention. The front pitch bridge is linked with multiple connecting rods to optimize the force transmission path of the blade. The device only supports vertical lifting and cannot adjust the orientation of the equipment during lifting. Moreover, the chain system is prone to wear under high-frequency reversing working conditions, and special tools are required for maintenance, which is not suitable for underground use.

[0005] Therefore, we propose a reversing rotary lifting support based on a mine blade carrier. SUMMARY

[0006] The purpose of the present application is to provide a reversing rotary lifting support based on a mine blade carrier to solve the problems mentioned in the background art.

[0007] To achieve the above purpose, the present application provides the following technical solution: a reversing rotary lifting support based on a mine blade carrier, comprising a bracket, a transmission ring is fixed on the top of the bracket through bolts, and a rotating mechanism is movably connected in the transmission ring and at the top of the bracket.

[0008] The rotating mechanism comprises a rotating sleeve mounted on the top of the bracket, the rotating sleeve is located in the transmission ring and sleeved with a gear ring, lifting grooves are uniformly arranged on the outer wall of the rotating sleeve, the transmission ring is located on the bottom side of the bracket and fixed with a power output assembly through bolts, and the power output assembly is drivingly connected with the gear ring.

[0009] A lifting frame is mounted on the inner wall of the rotating sleeve, support columns are uniformly and slidingly connected in the through grooves in the side wall of the lifting frame, the part of the support columns located outside the lifting frame is clamped with the inclined lifting grooves on the rotating sleeve, and a placing shovel platform is fixedly connected to the top of the lifting frame.

[0010] A pressure transmission plate is mounted on the top of the lifting frame, a rotating ring is fixedly connected to the bottom of the pressure transmission plate in the lifting frame, and notches are uniformly arranged on the rotating ring and clamped with the top protrusions of the support columns.

[0011] The pressure transmission plate is located in the through groove in the middle of the placing shovel platform, and the rotation of the pressure transmission plate drives the rotating ring to move, so that the support columns connected with the rotating ring are pushed out.

[0012] Further, the power output assembly comprises an asynchronous motor and a gear, the asynchronous motor is sleeved with the gear and meshingly connected with the gear ring on the rotating sleeve in the transmission ring.

[0013] Further, a limiting mechanism is fixedly mounted on the bottom of the bracket, the limiting mechanism comprises a positioning sleeve and limiting blocks, the positioning sleeve is fixed on the bottom of the bracket, and the limiting blocks are uniformly and slidingly connected in the groove in the side wall of the positioning sleeve.

[0014] Further, the positioning sleeve is sleeved with the lifting frame, the positioning sleeve is located inside the lifting frame, notches are uniformly arranged on the inner wall of the lifting frame, and the limiting blocks mounted on the positioning sleeve are abutted with the notches on the inner wall of the lifting frame.

[0015] Further, an adjusting column is mounted in the positioning sleeve, one end of the adjusting column penetrates the lifting frame and is mounted with the pressure transmission plate, a hexagonal column is arranged on the bottom of the pressure transmission plate and clamped with the groove on the top of the adjusting column, a temporary circular groove is arranged on the outer wall of the adjusting column and located on the side of the positioning sleeve, and when the support columns reach the highest point of the lifting grooves, the limiting blocks are flush with the temporary circular groove on the adjusting column.

[0016] Compared with the prior art, the beneficial effects of the present application are:

[0017] In the application, single power source is adopted to realize the integration of lifting and rotating functions, simplify the support structure and improve flexibility. Through the cooperation of the rotating sleeve of the rotating mechanism, the inclined lifting groove and the support column, combined with the dynamic constraint mechanism of the limiting mechanism, only a single power output component can realize the vertical lifting and horizontal rotation of the placed shovel platform. When the rotating sleeve rotates forward, the support column moves upward along the inclined surface of the lifting groove, pushing the lifting frame to vertically rise. The limiting block is clamped into the lifting frame slot to prevent rotation. When the support column reaches the highest point of the lifting groove, the temporary circular groove of the adjusting column aligns with the limiting block, the limiting block is separated from the slot and enters the circular groove, the rotation constraint is released, the rotating sleeve continues to rotate in the same direction to drive the lifting frame to rotate synchronously, the angle of the shovel platform is adjusted, the height and angle adjustment is convenient, suitable for narrow roadway in underground, simplifies the equipment structure, reduces the failure rate, and improves the convenience of adjusting the direction of the load.

[0018] In the application, the support column is designed to be replaceable to prolong the overall service life of the support, the hexagonal joint structure of the pressure transmission plate and the adjusting column can rotate the adjusting column to drive the rotating ring to rotate and fine adjust the position of the support column in the rotating ring slot under the load state, avoid local long-term pressure deformation, and the support column is designed in a modular manner and is surface hardened to support quick replacement, reduce maintenance cost, and improve the durability of the equipment under harsh underground conditions. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a whole structure schematic diagram of the reversing rotation lifting support of the mine shovel plate type carrier of the application;

[0020] Figure 2 It is a rear view structure schematic diagram of the reversing rotation lifting support of the mine shovel plate type carrier of the application;

[0021] Figure 3 It is a bottom view structure schematic diagram of the reversing rotation lifting support of the mine shovel plate type carrier of the application;

[0022] Figure 4 It is a schematic diagram of the installation structure of the side support column of the lifting frame of the application;

[0023] Figure 5 It is a schematic diagram of the overall structure of the rotating mechanism of the application;

[0024] Figure 6 It is a schematic diagram of the installation of the bottom limiting mechanism of the lifting frame of the application;

[0025] Figure 7 It is a schematic diagram of the cross-sectional structure of the lifting frame of the application;

[0026] Figure 8 It is a schematic diagram of the main view cross-sectional structure of the lifting frame of the application;

[0027] Figure 9Figure 1 is a schematic diagram of the connection structure of the adjusting column and the pressure transmission plate according to the present application.

[0028] In the figure: 1, bracket; 2, transmission ring; 3, power output assembly; 4, rotating mechanism; 401, rotating sleeve; 402, lifting groove; 403, tooth ring; 5, lifted frame; 6, placing shovel table; 7, limiting mechanism; 701, positioning sleeve; 702, limiting block; 8, adjusting column; 9, pressure transmission plate; 10, rotating ring; 11, temporary storage circular groove; 12, clamping groove; 13, support column. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0030] Please refer to Figures 1-9 , the present application provides a technical solution:

[0031] Embodiment 1: The mine shovel plate type carrier is powered by a diesel engine or a battery, integrates the functions of shoveling, pulling and lifting, and is used for the transfer of heavy equipment in narrow underground tunnels. The key components include a vehicle body framework composed of an articulated frame and a shovel plate mechanism. The front and rear frames are connected through a central articulation mechanism, and the steering cylinder controls the knee turning to minimize the turning radius. The shovel plate mechanism is composed of a shovel plate, a vertical plate and a lifting cylinder. The cylinder is articulated to the front frame to realize multi-inclination adjustment of the shovel plate and adapt to concave and convex floors.

[0032] Unlike the shovel plate structure arranged at the tail of the vehicle body framework, as Figure 1 shown, the present application replaces the shovel plate with a placing shovel table 6 that can rotate at full angle, and changes its working mode from the warping lifting of the shovel plate to vertical lifting, while changing the orientation of the placing shovel table 6 to realize independent orientation adjustment of the shovel plate. It belongs to the walking automatic conversion assembly of the shovel plate type carrier.

[0033] Compared with the load of the traditional shovel plate, when the placing shovel table 6 is used to carry objects, the overall load is reduced, but the overall object moving flexibility is improved, and it is suitable for the carrying operation of small and fully mechanized equipment in narrow tunnels in coal mines.

[0034] The height adjustment of the placing shovel table 6 on the bracket 1 adopts the combination of the rotating mechanism 4, the lifting frame 5 and the limiting mechanism 7, the vertical height adjustment of the whole lifting frame 5 is realized by the torsion generated by the rotation of the rotating sleeve 401 and the support column 13 clamped in the lifting groove 402, the limiting mechanism 7 is used to avoid the synchronous rotation of the lifting frame 5 with the rotating mechanism 4, when the support column 13 drives the lifting frame 5 to move to the highest position, the rotating sleeve 401 is rotated again to realize the rotation of the whole lifting frame 5, that is, the height and angle adjustment of the placing shovel table 6 is realized by a single power output assembly 3, which simplifies the structure of the equipment;

[0035] Considering the lifting and rotation of the placing shovel table 6 realized by the cooperation of the limiting mechanism 7 and the lifting frame 5, how to realize the constraint and pause of the lifting frame 5 by the limiting mechanism 7 after the lifting frame 5 rises to the highest point, so as to drive the synchronous rotation of the lifting frame 5 and change the orientation of the placing shovel table 6 on the top of the lifting frame 5, as shown in Figure 5 The main body of the rotating mechanism 4 is composed of a rotating sleeve 401, four lifting grooves 402 are arranged on the side wall of the rotating sleeve 401, the lifting grooves 402 are inclined downward, the support column 13 moves upward, the vertical pressure it bears is greater, so as to maintain the stability of the load on the top of the rotating sleeve 401, and avoid the sliding of the support column 13 in the lifting groove 402;

[0036] The whole driving of the rotating sleeve 401 is shown in Figure 3 The bracket 1 is provided with an upper power output assembly 3 at the bottom, including an asynchronous motor and a gear, the gear at the output end of the asynchronous motor is connected with the tooth ring 403 on the rotating sleeve 401 in the transmission ring 2, the rotating sleeve 401 is rotated by the asynchronous motor to drive the height adjustment of the whole lifting frame 5, in order to avoid the rotation of the lifting frame 5 with the rotating sleeve 401, as shown in Figure 2 The limiting mechanism 7 is installed on the bracket at the bottom of the bracket 1, as shown in Figure 6 and Figure 7 The main body of the limiting mechanism 7 is a positioning sleeve 701 located inside the lifting frame 5, and a limiting block 702 is connected in the groove on the outer wall of the positioning sleeve 701;

[0037] As shown in Figure 8 The inner wall of the lifting frame 5 is uniformly provided with a clamping groove 12, the limiting block 702 on the outer wall of the positioning sleeve 701 abuts against the clamping groove 12 to limit the rotation of the lifting frame 5, and the vertical movement of the lifting frame 5 is realized by the rotation of the rotating sleeve 401;

[0038] When the support column 13 reaches the highest point of the lifting groove 402, the lifted frame 5 needs to be synchronously rotated, but is limited by the abutment of the limiting block 702. For this purpose, an adjusting column 8 is installed in the entire positioning sleeve 701. The adjusting column 8 is provided with a temporary storage circular groove 11 on the outer wall. One end of the adjusting column 8 is connected to the pressure transmission plate 9 at the top of the lifted frame 5 and rises synchronously with the lifted frame 5. When the adjusting column 8 reaches the highest point of the lifting groove 402, the temporary storage circular groove 11 of the adjusting column 8 is flush with the limiting block 702. Since the limiting block 702 is provided with a cutting surface on both sides, the rotation of the lifted frame 5 causes the clamping groove 12 to press the limiting block 702. The limiting block 702 has a moving space on the other side of the positioning sleeve 701, that is, the temporary storage circular groove 11. The limiting block 702 is clamped into the temporary storage circular groove 11 under the pressing of the cutting surface of the clamping groove 12. Without the limiting block 702, the lifted frame 5 rotates synchronously with the rotating sleeve 401. Finally, the top load of the placed shovel platform 6 is adjusted to the docking angle, which facilitates the movement of the load in the roadway.

[0039] When the position of the placed shovel platform 6 is lowered, the highest position is adjusted in angle. Then, the entire rotating sleeve 401 is controlled to rotate in reverse direction to avoid the support column 13 sliding on the lifting groove 402, causing the load to change after the angle is adjusted. The limiting block 702 needs to be clamped into the clamping groove 12 inside the lifted frame 5 again.

[0040] As the lifted frame 5 descends, the temporary storage circular groove 11 of the adjusting column 8 presses the limiting block 702, causing the limiting block 702 to abut against the clamping groove 12 again, thereby completing the movement constraint of the lifted frame 5. At this time, the rotating sleeve 401 rotates in reverse direction and the entire lifted frame 5 descends vertically, as shown in Figure 4 Only by setting the power output assembly 3, the height and angle of the placed shovel platform 6 on the top of the bracket 1 are adjusted to realize the flexible transfer of the load in the narrow roadway underground.

[0041] In the embodiment 2, the load on the top of the placed shovel platform 6 directly acts on the rotating sleeve 401 through the support column 13, which may easily cause the deformation of the support column 13 after long-term use, affecting the subsequent movement of the load on the placed shovel platform 6. Therefore, the support column 13 adjusting assembly is provided to dynamically adjust the support column 13 during daily load use, thereby improving the service life of the reversing rotation lifting support of the shovel plate carrier.

[0042] As shown in Figure 7 The pressure transmission plate 9 is arranged at the top of the lifted frame 5 and is connected with the adjusting column 8 at the bottom. The specific connection mode is shown in Figure 9 .

[0043] With the lifting process of the lifting frame 5, the hexagonal column at the bottom of the entire transmission plate 9 pulls the adjusting column 8 up, the hexagonal column moves to the top circular notch of the adjusting column 8, the connecting column at the bottom of the transmission plate 9 is connected with a rotating ring 10 in the lifting frame 5, the rotating sleeve 401 drives the lifting frame 5 to rotate, and at the same time, the rotating ring 10 at the bottom of the transmission plate 9 is rotated, the supporting column 13 installed in the lifting frame 5 is abutted with the straight slot hole on the rotating ring 10 through the protrusions on the surface thereof, if the rotating ring 10 is rotated, the supporting column 13 can be driven to slide on the outer wall of the lifting frame 5, the supporting position of the supporting column 13 is changed, that is, the deformation position of the supporting column 13 is changed, long-term pressure deformation at the same position is avoided, and at the same time, the abutment position of the rotating sleeve 401 is changed, which does not affect the normal rotation of the rotating sleeve 401;

[0044] During the lifting process of the lifting frame 5, the adjusting column 8 is in a disengaged state with the transmission plate 9, the rotating ring 10 is an integral part in the lifting frame 5, and the two cannot be controlled separately through the adjusting column 8;

[0045] When the adjusting column 8 moves upward, the hexagonal notch at the end of the adjusting column 8 begins to contact the hexagonal column on the transmission plate 9, as shown in Figure 9 , the adjusting column 8 is rotated to realize the independent rotation of the rotating ring 10 in the lifting frame 5, and the deformation of the supporting column 13 occurs under load, so that the rotating ring 10 is driven to rotate through the lifting and rotating mode of the adjusting column 8;

[0046] The supporting column 13 is a vulnerable part and needs to be replaced regularly, the strain gauge pasted on the supporting column 13 can be used for local bending deformation monitoring, the supporting column 13 is also subjected to surface hardening treatment, such as shot peening strengthening or resistance to fatigue deformation and fracture, the supporting column 13 is also formed by high-strength alloy steel, during installation, the transmission plate 9 at the top is lifted, the surface is provided with a protruding column which is transversely inserted, after 90-degree rotation, the protruding column is clamped into the straight slot hole on the rotating ring 10, the supporting column 13 is convenient to replace, and it is beneficial to long-term use of the entire reversing rotary lifting support.

[0047] The working principle of the present application is vertical lifting, the asynchronous motor driving gear in the power output assembly 3 drives the tooth ring 403 of the rotating sleeve 401 to rotate forward, the inclined lifting groove 402 on the outer wall of the rotating sleeve 401 pushes the supporting column 13 to rise along the inclined surface, the supporting column 13 drives the lifting frame 5 to vertically move upward along the positioning sleeve 701, at this time, the shovel platform 6 is lifted, the limiting block 702 on the side wall of the positioning sleeve 701 is clamped into the clamping groove 12 on the inner side of the lifting frame 5, the rotation degree of freedom is locked, and only vertical movement is ensured;

[0048] High rotation switching, support column 13 to the highest point of lifting groove 402, under the pressure plate 9 of the top of the lifting frame 5 to adjust the column 8, adjust the column 8 sliding makes the temporary storage circular groove 11 alignment limit block 702, continue to rotate the same direction of the rotating sleeve 401, the inner wall of the lifting frame 5 clamping groove 12 extrusion limit block 702 section, limit block 702 slip into the temporary storage circular groove 11 to remove the rotation constraint, lifting frame 5 and positioning sleeve 701 disengaged mechanical locking, with rotating sleeve 401 synchronous horizontal rotation, put the shovel platform 6 to adjust the angle, when the power output assembly 3 reverse rotation, rotating sleeve 401 reverse, support column 13 along the lifting groove 402 down, lifting frame 5 vertical drop, adjust the column 8 down, temporary storage circular groove 11 extrusion limit block 702, limit block 702 from the circular groove re clamping into the lifting frame 5 clamping groove 12, the lifting frame 5 rotation freedom again locked, to avoid the process of deflection, after the completion of the deflection angle height adjustment.

[0049] The above content is only an example and description of the structure of the present application, those skilled in the art of the technical field to which the described embodiments of the various modifications or supplements or adopt similar ways instead, as long as not deviate from the structure of the invention or beyond the scope defined by the claims, shall belong to the scope of the present invention.

[0050] In the description of the present application, the description of the term "one embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0051] The preferred embodiments of the application disclosed above are only used to help explain the application. The preferred embodiments do not describe all the details, nor limit the application to the specific embodiments. Obviously, many modifications and changes can be made according to the content of the present application. The present application selects and describes these embodiments in order to better explain the principles and practical application of the present application, so that those skilled in the art can well understand and use the present application.

Claims

1. A reversing rotary lifting support based on a mining shovel-type transport vehicle, comprising a bracket (1), characterized in that, The top of the bracket (1) is fixed with a transmission ring (2) by bolts, and a rotating mechanism (4) is movably connected inside the transmission ring (2) and located at the top of the bracket (1). The rotating mechanism (4) includes a rotating sleeve (401) installed on the top of the bracket (1). The rotating sleeve (401) is located inside the transmission ring (2) and a toothed ring (403) is fitted on it. Lifting grooves (402) are evenly opened on the outer wall of the rotating sleeve (401). The transmission ring (2) is located on the bottom side of the bracket (1) and a power output component (3) is fixed by bolts. The power output component (3) is drivenly connected to the toothed ring (403). The inner wall of the sleeve (401) is equipped with a lifting frame (5), and a support column (13) is evenly slidably connected in the through groove of the side wall of the lifting frame (5). The part of the support column (13) located outside the lifting frame (5) is engaged with the inclined lifting groove (402) on the sleeve (401). A shovel platform (6) is fixedly connected to the top of the lifting frame (5). A pressure plate (9) is installed on the top of the lifting frame (5). A rotating ring (10) is fixedly connected inside the lifting frame (5) and at the bottom of the pressure plate (9). The rotating ring (10) has evenly spaced slots that engage with the top protrusion of the support column (13). The pressure plate (9) is located in the middle through groove of the shovel platform (6). The rotation of the pressure plate (9) drives the rotating ring (10) to move, thereby pushing out the support column (13) connected to the rotating ring (10).

2. The reversing rotary lifting support based on a mining shovel-type transport vehicle according to claim 1, characterized in that, The power output assembly (3) includes an asynchronous motor and a gear. The output end of the asynchronous motor is fitted with a gear and meshes with the gear ring (403) on the inner sleeve (401) of the transmission ring (2).

3. The reversing rotary lifting support based on a mining shovel-type transport vehicle according to claim 2, characterized in that, The bracket (1) is fixedly installed with a limiting mechanism (7) at the bottom. The limiting mechanism (7) includes a positioning sleeve (701) and a limiting block (702). The positioning sleeve (701) is fixed at the bottom of the bracket (1). The limiting block (702) is evenly slidably connected in the groove on the side wall of the positioning sleeve (701).

4. The reversing rotary lifting support based on a mining shovel-type transport vehicle according to claim 3, characterized in that, The positioning sleeve (701) is sleeved with the lifting frame (5). The positioning sleeve (701) is located inside the lifting frame (5), and the inner wall of the lifting frame (5) is evenly provided with slots (12). The limiting block (702) installed on the positioning sleeve (701) abuts against the slots (12) on the inner wall of the lifting frame (5).

5. The reversing rotary lifting support based on a mining shovel-type transport vehicle according to claim 4, characterized in that, An adjusting column (8) is installed inside the positioning sleeve (701). One end of the adjusting column (8) passes through the lifting frame (5) and is fitted with a pressure plate (9). The bottom of the pressure plate (9) is provided with a hexagonal column and is engaged with the top groove of the adjusting column (8). A temporary storage groove (11) is provided on the outer wall of the adjusting column (8) and on the side of the positioning sleeve (701). When the support column (13) reaches the highest point of the lifting groove (402), the limiting block (702) is flush with the temporary storage groove (11) on the adjusting column (8).

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