A new type of clutch device for coal mining machine

Abstract

The utility model discloses a novel clutch device for a coal mining machine, which relates to the technical field of coal mining machines and comprises an end cover, a handle, a connecting rod and a torque shaft, wherein the connecting rod is movably connected in the end cover, the handle is fixedly connected to one end of the connecting rod, the torque shaft is rotatably connected to the other end of the connecting rod, a mounting groove is provided on one side of the end cover, the handle is placed in the mounting groove, the handle is circular and has an offset center of gravity, and the utility model can increase the resistance of the handle to free rotation by offsetting the center of gravity of the handle, prevent the handle from rotating due to vibration of the coal mining machine or driven by the connecting rod, and improve the stability of the handle.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mining machines, in particular to a novel clutch device for coal mining machines. Background Art

[0002] The use environment of the coal mining machine motor is special. The torque shaft is passed into the rotating shaft of the coal mining machine motor through the clutch to transmit the mechanical energy to the coal mining machine cutting head. The staff controls the torque shaft to transmit the mechanical energy through the clutch.

[0003] For example, in the utility model patent with announcement number CN201973128U, a coal mining machine clutch with a new end cover is disclosed, including a handle, a motor shaft, a hollow shaft motor and a push rod, and also includes a semicircular end cover, an outwardly extending flange on the handle block at the end away from the axis of the push rod, a slot on the end cover that matches the flange, a positioning block of the push rod on the handle passes through a correspondingly designed hole on the semicircular end cover, and a handle block of the handle passes through the slot on the end cover. The beneficial effect is that since the clutch end cover is semicircular, the contact surface is increased, and when the cutting part is stopped, the clutch handle cannot be pushed inward, which is more convenient and safer during operation;

[0004] However, with the vibration of the coal mining machine during operation, or driven by the connecting rod, the handle piece is likely to rotate. When the handle piece rotates to an angle sufficient to disengage the end cover, it is easy to cause the clutch to withdraw, thereby affecting the normal use of the coal mining machine. Utility Model Content

[0005] In view of the deficiencies of the prior art, the utility model provides a novel clutch device for a coal mining machine to solve the problems raised in the above background technology.

[0006] To achieve the above objectives, the utility model is implemented through the following technical solutions: a new type of coal mining machine clutch device, including an end cover, a handle, a connecting rod, and a torque shaft. The connecting rod is movably connected in the end cover, the handle is fixedly connected to one end of the connecting rod, and the torque shaft is rotatably connected to the other end of the connecting rod. An installation groove is opened on one side of the end cover, and the handle is placed in the installation groove. The handle is circular and has an offset center of gravity.

[0007] Preferably, a pull rod is fixedly installed inside the handle piece, and both ends of the pull rod extend to the outside of the handle piece to form a bulge. An annular groove capable of accommodating the bulge is provided on the side wall of the installation groove, and a pair of openings capable of allowing the bulge to pass through are provided between the annular groove and an end surface of the end cover close to the handle piece.

[0008] Preferably, a mounting hole is provided in the end cover, the connecting rod is placed in the mounting hole, a positioning pin is fixedly provided on the connecting rod, a second annular groove capable of accommodating the positioning pin is provided in the end cover, a pair of grooves capable of allowing the positioning pin to pass through is provided between the second annular groove and an end surface of the end cover facing away from the handle piece, and the pair of grooves corresponds to the pair of openings.

[0009] Preferably, an eccentric hole is provided in the handle.

[0010] Beneficial Effects

[0011] The utility model provides a novel clutch device for coal mining machines, which has the following beneficial effects: the resistance to free rotation of the handle piece can be increased by shifting the center of gravity of the handle piece, thereby preventing the handle piece from rotating due to vibration of the coal mining machine or driven by a connecting rod, thereby improving the stability of the handle piece. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a three-dimensional diagram of the utility model;

[0013] Figure 2 This is a top view of the internal structure of the utility model;

[0014] Figure 3 It is the left view of the handle;

[0015] Figure 4 for Figure 3 Sectional view of AA in the middle;

[0016] Figure 5 This is the main view of the internal structure of the end cover.

[0017] In the figure: 1, end cover; 11, mounting groove; 12, annular groove 1; 13, opening; 14, mounting hole; 15, groove; 16, annular groove 2; 2, handle piece; 21, pull rod; 22, eccentric hole; 23, protrusion; 3, connecting rod; 31, positioning pin; 4, torque shaft. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0019] See also Figure 1-5The utility model provides a technical solution: a new type of coal mining machine clutch device, including an end cover 1, a handle piece 2, a connecting rod 3, and a torque shaft 4. The connecting rod 3 is movably connected in the end cover 1, the handle piece 2 is fixedly connected to one end of the connecting rod 3, and the torque shaft 4 is rotatably connected to the other end of the connecting rod 3. A mounting groove 11 is opened on one side of the end cover 1, and the handle piece 2 is placed in the mounting groove 11. The handle piece 2 is circular and has a shifted center of gravity. The shifted center of gravity of the handle piece 2 can increase the resistance to the free rotation of the handle piece 2, thereby improving the stability of the handle piece 2.

[0020] As an embodiment of the utility model, a pull rod 21 is fixedly installed in the handle piece 2, and both ends of the pull rod 21 extend to the outside of the handle piece 2 to form a protrusion 23. An annular groove 12 capable of accommodating the protrusion 23 is provided on the side wall of the mounting groove 11. When the protrusion 23 is placed in the annular groove 12, the axial movement of the handle piece 2 can be restricted. A pair of openings 13 capable of allowing the protrusion 23 to pass through are provided between the annular groove 12 and an end surface of the end cover 1 close to the handle piece 2. When the protrusion 23 on the handle piece 2 is rotated to be aligned with the opening 13, the handle piece 2 can be removed from the mounting groove 11.

[0021] As an embodiment of the utility model, a mounting hole 14 is provided in the end cover 1, the connecting rod 3 is placed in the mounting hole 14, a positioning pin 31 is fixedly provided on the connecting rod 3, and a second annular groove 16 capable of accommodating the positioning pin 31 is provided in the end cover 1. A pair of grooves 15 capable of allowing the positioning pin 31 to pass through is provided between the second annular groove 16 and an end surface of the end cover 1 facing away from the handle piece 2, and the pair of grooves 15 correspond to the pair of openings 13. When the pair of protrusions 23 are aligned with the pair of openings 13, the positioning pin 31 can be aligned with the grooves 15.

[0022] As an embodiment of the present utility model, an eccentric hole 22 is provided in the handle member 2 to achieve the center of gravity offset of the handle member 2 .

[0023] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A new type of coal mining machine clutch device, characterized in that: The invention comprises an end cover (1), a handle piece (2), a connecting rod (3), and a torque shaft (4); the connecting rod (3) is movably connected inside the end cover (1); the handle piece (2) is fixedly connected to one end of the connecting rod (3); the torque shaft (4) is rotatably connected to the other end of the connecting rod (3); a mounting groove (11) is provided on one side of the end cover (1); the handle piece (2) is placed in the mounting groove (11); and the handle piece (2) is circular and has an offset center of gravity.

2. A new type of coal mining machine clutch device according to claim 1, characterized in that: A pull rod (21) is fixedly installed in the handle piece (2), and both ends of the pull rod (21) extend to the outside of the handle piece (2) to form a convex head (23). An annular groove (12) capable of accommodating the convex head (23) is provided on the side wall of the installation groove (11), and a pair of openings (13) capable of allowing the convex head (23) to pass through are provided between the annular groove (12) and an end surface of the end cover (1) close to the handle piece (2).

3. A new type of coal mining machine clutch device according to claim 2, characterized in that: The end cover (1) is provided with a mounting hole (14), the connecting rod (3) is placed in the mounting hole (14), a positioning pin (31) is fixedly provided on the connecting rod (3), the end cover (1) is provided with a second annular groove (16) capable of accommodating the positioning pin (31), a pair of grooves (15) capable of allowing the positioning pin (31) to pass through is provided between the second annular groove (16) and an end surface of the end cover (1) facing away from the handle (2), and the pair of grooves (15) correspond to the pair of openings (13).

4. A new type of coal mining machine clutch device according to any one of claims 1 to 3, characterized in that: An eccentric hole (22) is provided in the handle piece (2).

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