Coal mining gear convenient to replace

Abstract

The utility model relates to the technical field of coal mining gears, in particular to a coal mining gear convenient to replace, which comprises a reduction gearbox and a mounting plate, the reduction gearbox is fixedly connected with a power shaft through a coupler mounted at the driving end of the reduction gearbox, a power gear is fixedly mounted on the power shaft, a gear carrier is fixedly mounted at the top of the mounting plate, and a gear shaft is fixedly mounted on the gear carrier. A guide groove is formed in the top of the gear frame. According to the coal mining gear convenient to replace, through cooperative use of a positioning groove, a positioning hole, a positioning column, a movable plate, a worm, a worm gear, a second motor and a threaded column and clamping connection of the positioning column and the positioning groove, accurate positioning of the position of an adjusting block can be achieved, and therefore a rotating gear is limited through threads of a lead screw in the using process; and by means of clamping and limiting of the positioning columns and the positioning grooves, the double fixing effect can be achieved, and the stability and reliability of the whole gear system in the replacing and using process are greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mining gears, in particular to a coal mining gear which is easy to replace. Background Art

[0002] In the field of coal mining, coal mining gears play a vital role. Coal mining is a complex and dangerous process that requires efficient and reliable mechanical equipment to complete. As one of the core components of these equipment, coal mining gears undertake important tasks such as rotation, transmission and torque transmission.

[0003] The Chinese patent publication number is CN213117308U. It discloses a coal mining gear structure of a coal mining machine, which includes a rotating gear and a power gear. The rotating gear is fixedly sleeved on the rotating gear shaft, and the rotating gear shaft is rotatably arranged on the gear seat. The utility model provides a lubricating oil tank, a liquid collecting bucket, a first oil pipe, an oil pump, a second oil pipe, a nozzle and a spare rotating gear, so that the coal mining gear structure has a circulating lubrication function, and the installation and maintenance of the gear is more convenient.

[0004] With respect to the above-mentioned related technologies, the gear has some shortcomings. In actual use, when the rotating gear is damaged, the spare rotating gear is replaced by mechanical drive. Although it is convenient for replacement, the position of the rotating gear is limited by the threaded transmission of the screw rod. Once the screw rod is slipped, it is easy to cause unstable gear meshing and affect the stability of the entire gear system. Therefore, it is necessary to provide a coal mining gear that is easy to replace to solve the above technical problems. Utility Model Content

[0005] The purpose of the utility model is to provide a coal mining gear that is easy to replace, so as to solve at least one technical problem existing in the above-mentioned background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A coal mining gear that is easy to replace, comprising:

[0008] A reduction box and a mounting plate, wherein the reduction box is fixedly connected to a power shaft through a coupling mounted on a driving end thereof, a power gear is fixedly mounted on the power shaft, a gear rack is fixedly mounted on the top of the mounting plate, a guide groove is provided on the top of the gear rack, a lead screw is rotatably mounted inside the gear rack, a first motor is fixedly mounted on one side inside the gear rack, and the driving end of the first motor is fixedly connected to one end of the lead screw;

[0009] An adjusting block is sleeved on the outer wall of the screw rod, and there are two adjusting blocks. A rotating shaft is rotatably installed on the top of the two adjusting blocks, and a rotating gear is fixedly installed on the rotating shaft. A limiting mechanism is arranged on the front side of the bottom of the gear frame, and a positioning groove is arranged at the bottom of the adjusting block.

[0010] A positioning hole is provided at the bottom of the inner wall of the gear frame, a positioning column is slidably mounted on the positioning hole, and the positioning column is engaged with the positioning groove, and an adjustment mechanism is provided at the bottom end of the positioning column.

[0011] Preferably, the adjustment mechanism includes a movable plate, and the movable plate is fixedly mounted on the bottom end of the positioning column, a threaded column is rotatably mounted between the top of the mounting plate and the bottom of the gear rack, a second motor is fixedly mounted on the top of the mounting plate on one side of the threaded column, a worm is fixedly mounted on the driving end of the second motor, a worm wheel is fixedly mounted on the lower side of the outer wall of the threaded column, and the worm wheel is meshed with the worm wheel.

[0012] Preferably, a threaded hole matched with the threaded column is opened on one side of the top of the movable plate, and the movable plate is threadedly connected with the threaded column through the threaded hole opened on one side of the top of the movable plate.

[0013] Preferably, a threaded hole matched with the screw rod is opened on one side of the adjusting block, and the adjusting block is threadedly connected to the screw rod through the threaded hole opened on one side of the adjusting block.

[0014] Preferably, the limiting mechanism includes a limiting groove, and the limiting groove is opened on the front side of the bottom of the gear frame, and a limiting block is fixedly installed on the front side of the bottom of the adjustment block, and the limiting block is slidably connected to the limiting groove.

[0015] Preferably, the width of the guide groove is greater than the outer diameter of the rotating shaft.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. The utility model uses the positioning groove, positioning hole, positioning column, movable plate, worm, worm wheel, second motor and threaded column in coordination, and the positioning column and positioning groove are connected by clamping, so that we can achieve accurate positioning of the adjustment block, so that the rotating gear not only relies on the thread limit of the screw rod during use, but also relies on the clamping limit of the positioning column and the positioning groove, forming a double fixing effect, which greatly improves the stability and reliability of the entire gear system during replacement and use, and has extremely high practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the top structure of the utility model.

[0019] Figure 2 It is a front view cross-sectional structural schematic diagram of the utility model.

[0020] Figure 3 It is a structural schematic diagram of the gear rack in the utility model.

[0021] Figure 4 It is a structural schematic diagram of the adjustment block in the utility model.

[0022] Figure 5 For the utility model Figure 2 Enlarged structural diagram at A in the middle.

[0023] In the figure: 1. reduction box; 2. power shaft; 3. power gear; 4. rotating shaft; 5. rotating gear; 6. gear rack; 7. screw rod; 8. guide groove; 9. mounting plate; 10. adjustment block; 11. first motor; 12. positioning groove; 13. positioning hole; 14. limit groove; 15. limit block; 16. positioning column; 17. movable plate; 18. worm; 19. worm wheel; 20. second motor; 21. threaded column. DETAILED DESCRIPTION

[0024] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0025] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] See also Figure 1-5 , an embodiment provided by the utility model:

[0029] A coal mining gear that is easy to replace, comprising:

[0030] The reduction box 1 and the mounting plate 9 are fixedly connected to the power shaft 2 through a coupling installed on the driving end of the reduction box 1, and a power gear 3 is fixedly installed on the power shaft 2. A gear frame 6 is fixedly installed on the top of the mounting plate 9, and a guide groove 8 is opened on the top of the gear frame 6. A screw rod 7 is rotatably installed inside the gear frame 6. A first motor 11 is fixedly installed on one side of the gear frame 6, and the driving end of the first motor 11 is fixedly connected to one end of the screw rod 7;

[0031] An adjusting block 10 is sleeved on the outer wall of the screw rod 7, and there are two adjusting blocks 10. A rotating shaft 4 is rotatably mounted on the top of the two adjusting blocks 10, and a rotating gear 5 is fixedly mounted on the rotating shaft 4. A limiting mechanism is arranged at the front side of the bottom of the gear frame 6, and a positioning groove 12 is arranged at the bottom of the adjusting block 10.

[0032] A positioning hole 13 is formed at the bottom of the inner wall of the gear frame 6 , a positioning column 16 is slidably mounted on the positioning hole 13 , and the positioning column 16 is engaged with the positioning groove 12 , and an adjustment mechanism is provided at the bottom end of the positioning column 16 .

[0033] The adjusting mechanism includes a movable plate 17, and the movable plate 17 is fixedly installed on the bottom end of the positioning column 16, a threaded column 21 is rotatably installed between the top of the mounting plate 9 and the bottom of the gear frame 6, and a second motor 20 is fixedly installed on the top of the mounting plate 9 on one side of the threaded column 21, and a worm 18 is fixedly installed on the driving end of the second motor 20, and a worm wheel 19 is fixedly installed on the lower side of the outer wall of the threaded column 21, and the worm wheel 19 is meshed with the worm 18. Through the self-locking of the worm wheel 19 and the worm 18, the stability of the positioning column 16 after the vertical position is adjusted is further improved, the clamping connection between the positioning column 16 and the positioning groove 12 is made firmer, and the limiting of the adjusting block 10 is more stable.

[0034] In one embodiment, a threaded hole matched with the threaded column 21 is opened on one side of the top of the movable plate 17, and the movable plate 17 is threadedly connected to the threaded column 21 through the threaded hole opened on one side of the top of the movable plate 17.

[0035] In one of the preferred embodiments, a threaded hole matched with the screw rod 7 is opened on one side of the adjusting block 10, and the adjusting block 10 is threadedly connected to the screw rod 7 through the threaded hole opened on one side, so that the adjusting block 10 can move along the screw rod 7 and its position can be adjusted by rotation, thereby realizing precise adjustment of the position of the rotating gear 5.

[0036] In one embodiment, the limiting mechanism includes a limiting groove 14, and the limiting groove 14 is opened on the front side of the bottom of the gear frame 6. The limiting block 15 is fixedly installed on the front side of the bottom of the adjustment block 10, and the limiting block 15 is slidably connected to the limiting groove 14, thereby ensuring stable lateral movement of the adjustment block 10.

[0037] In one preferred embodiment, the width of the guide groove 8 is greater than the outer diameter of the rotating shaft 4 to avoid frictional contact between the guide groove 8 and the rotating shaft 4, which would increase the wear of the rotating shaft 4 and reduce the service life of the rotating shaft 4.

[0038] The working principle of the utility model is as follows: the electrical components appearing in the text are all electrically connected to the main controller and the power supply. The main controller can be a conventional known device for controlling a computer, etc., and the existing disclosed power connection technology is not repeated in the text. The parts not involved in the device are the same as the existing technology or can be implemented by using the existing technology. When the rotating gear 5 in meshing state with the power gear 3 is damaged and needs to be replaced, the entire gear system is in a stopped state, and the second motor 20 is first controlled to start working, and the driving end of the second motor 20 drives the worm 18 is rotated, and the worm wheel 19 is meshed with the worm 18, so that the worm wheel 19 drives the threaded column 21 to rotate, and the threaded transmission of the threaded column 21 and the movable plate 17, and the sliding relationship between the movable plate 17 and the positioning column 16 and the positioning hole 13, make the positioning column 16 stably move vertically, control the positioning column 16 to move downward and disengage from the inside of the positioning groove 12 at the bottom of the corresponding adjustment block 10, and the adjustment block 10 can move horizontally freely after losing the card connection limit between the positioning column 16 and the positioning groove 12, and then control the first motor 11 to start working, and the first The driving end of the motor 11 drives the screw rod 7 to rotate, and the screw rod 7 and the adjusting block 10 are threadedly driven, and the adjusting block 10 slides through the limit block 15 and the limit groove 14, so that the adjusting block 10 can move laterally stably. The two adjusting blocks 10 will move to one side synchronously. The movement of the adjusting block 10 drives the rotating gear 5 to move through the rotating shaft 4, so that the damaged rotating gear 5 moves to the right side of the gear rack 6, and the spare rotating gear 5 will take over the position of the original rotating gear 5 and mesh with the power gear 3, so as to achieve the effect of fast gear replacement. At the same time, through the drive of the second motor 20, the positioning column 16 is controlled to move upward and snap into the inside of the positioning groove 12 at the bottom of the adjustment block 10 below the spare rotating gear 5. Through the snap connection between the positioning column 16 and the positioning groove 12, we can achieve accurate positioning of the position of the adjustment block 10, so that the rotating gear 5 can rely not only on the threaded limitation of the screw rod 7 during use, but also on the snap connection limitation of the positioning column 16 and the positioning groove 12, forming a double fixing effect, which greatly improves the stability and reliability of the entire gear system during replacement and use, and has extremely high practicality.

[0039] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A coal mining gear that is easy to replace, characterized in that: It includes: A reduction box (1) and a mounting plate (9), wherein the reduction box (1) is fixedly connected to a power shaft (2) via a coupling mounted on a driving end thereof, a power gear (3) is fixedly mounted on the power shaft (2), a gear frame (6) is fixedly mounted on the top of the mounting plate (9), a guide groove (8) is provided on the top of the gear frame (6), a screw rod (7) is rotatably mounted inside the gear frame (6), a first motor (11) is fixedly mounted on one side inside the gear frame (6), and a driving end of the first motor (11) is fixedly connected to one end of the screw rod (7); An adjusting block (10) is sleeved on the outer wall of the screw rod (7), and the number of the adjusting blocks (10) is two. A rotating shaft (4) is rotatably mounted on the top of each of the two adjusting blocks (10), and a rotating gear (5) is fixedly mounted on the rotating shaft (4). A limiting mechanism is arranged at the front side of the bottom of the gear rack (6), and a positioning groove (12) is arranged at the bottom of the adjusting block (10); A positioning hole (13) is provided at the bottom of the inner wall of the gear rack (6), a positioning column (16) is slidably mounted on the positioning hole (13), and the positioning column (16) is snap-fitted with the positioning groove (12), and an adjustment mechanism is provided at the bottom end of the positioning column (16).

2. The easily replaceable coal mining gear according to claim 1, characterized in that: The adjustment mechanism comprises a movable plate (17), and the movable plate (17) is fixedly mounted on the bottom end of the positioning column (16); a threaded column (21) is rotatably mounted between the top of the mounting plate (9) and the bottom of the gear rack (6); a second motor (20) is fixedly mounted on the top of the mounting plate (9) and located on one side of the threaded column (21); a worm (18) is fixedly mounted on the driving end of the second motor (20); a worm wheel (19) is fixedly mounted on the lower side of the outer wall of the threaded column (21), and the worm wheel (19) is meshed with the worm (18).

3. The easily replaceable coal mining gear according to claim 2, characterized in that: A threaded hole matching the threaded column (21) is provided on one side of the top of the movable plate (17), and the movable plate (17) is threadedly connected to the threaded column (21) via the threaded hole provided on one side of the top of the movable plate (17).

4. The easily replaceable coal mining gear according to claim 1, characterized in that: A threaded hole matched with the screw rod (7) is provided on one side of the adjusting block (10), and the adjusting block (10) is threadedly connected to the screw rod (7) via the threaded hole provided on one side of the adjusting block (10).

5. The easily replaceable coal mining gear according to claim 1, characterized in that: The limiting mechanism comprises a limiting groove (14), and the limiting groove (14) is arranged on the front side of the bottom of the gear frame (6), and a limiting block (15) is fixedly mounted on the front side of the bottom of the adjustment block (10), and the limiting block (15) is slidably connected to the limiting groove (14).

6. The easily replaceable coal mining gear according to claim 1, characterized in that: The width of the guide groove (8) is greater than the outer diameter of the rotating shaft (4).

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