Coupling with high safety

Abstract

A high-safety coupler comprises a coupler body, the coupler body comprises an inner sleeve, a retainer, a steel ball and an outer sleeve, a gland arranged on the outer cylindrical face of the inner sleeve in a sleeving mode is fixed to the right end of the outer sleeve through a second fastener, the left end of the outer sleeve is fixedly connected with a connecting flange through a third fastener, and the connecting flange is detachably connected with a clutch sleeve through a locking device; an inner hole of the connecting flange is a step-shaped hole and comprises a small hole part and a large hole part connected to the right end of the small hole part, a circle of convex seam allowance axially extending out is arranged at an orifice of the large hole part, and the convex seam allowance is matched with a concave seam allowance at the right end of the inner ring of the outer sleeve for positioning; an outer spline is arranged on the outer cylindrical face of the middle of the flange and meshed with an inner spline of the clutch sleeve, a sliding assembly is arranged between the outer cylindrical face of the right end of the flange and an inner hole of the connecting flange, and a blocking cover is fixed to the right end face of the flange through a first fastener. The input end and the output end of the coupler are completely separated, power input is cut off, replacement or maintenance of quick-wear parts of a production line is achieved, disassembly and assembly are easy and convenient, and use is safe and reliable.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of transmission shaft, specifically relates to a shaft coupling. BACKGROUND

[0002] Ball cage type shaft coupling is widely used in engineering, mine, petroleum, metallurgy, vehicle and other mechanical industry, and is used for torque transmission when input shaft and output shaft are misaligned.

[0003] In the metallurgical equipment production line, there are many varieties of shaft couplings directly connected with the motor, such as diaphragm type, drum gear type, elastic pin type, etc., which play a role in transmitting torque during work, and must have complete disengagement capability during shutdown maintenance and repair. In order to ensure safety, the motor and its directly connected equipment must be completely disconnected during the replacement of motor or metallurgical equipment parts or line repair. The commonly used method is to cut off the power supply and stop or to make the connecting device stop by tightly clamping the brake disc and brake wheel with the friction plate. The circuit control panel on the production line is very complex, and the operator may accidentally press the switch to turn on the power supply, and the motor is turned on, so that the input can still be transmitted to the output. The consequences of misoperation are unpredictable, such as damage to equipment and even personnel injury. The method of hoisting the motor and base to achieve complete disconnection is time-consuming and laborious, and requires the installation of hoisting devices or the arrangement of a storage area, which is not suitable for emergency situations and insufficient workshop space. Taking the scrap shears of the metallurgical equipment as an example, the scrap blades are mounted on the cutter disc, the cutter disc is mounted on the cutter shaft, and the input end of the cutter shaft is the output end of the shaft coupling. The scrap shears are used to cut the two side scrap into short steel bars of uniform length. The scrap blades of the continuous machine production line are replaced frequently. For example, the high-strength steel needs to be replaced once every 24 hours, and because there are 24 pieces, the replacement time is at least 2 hours. During the replacement of the blades, the cutter shaft must not rotate or misrotate, otherwise it will rotate during installation and cause damage to surrounding facilities and personnel. In order to replace the scrap blades of the scrap shears, the cutter shaft must be completely disconnected from the motor, otherwise the misoperation on site will not only affect the normal replacement of the blades, but also may cause damage to the equipment parts or serious safety accidents. SUMMARY

[0004] The utility model discloses the invention purpose is to solve the above-mentioned prior art deficiency, provide a kind of safety high's shaft coupling, by the complete disengagement of the input end and output end of shaft coupling, cut off the input of power, realize the replacement or repair of production line vulnerable parts, easy to disassemble and install, safe and reliable to use.

[0005] The utility model discloses a scheme: a coupling with high safety, including the coupling body, the coupling body includes the inner sleeve for connecting with input end, retainer, steel ball, outer sleeve, the gland is fixed in the outer sleeve right -hand end through fastener no. 2 on the outer cylindrical surface of the inner sleeve, and the left -hand end of outer sleeve is fixedly connected flange through fastener no. 3, and the flange is detachably connected with the clutch cover through locking device, the inner hole of flange is the stepped hole, including the small hole part, the big hole part connected in the right -hand end of small hole part, and the big hole part orifice has the convex stop of axial extension, and the convex stop is positioned with the recessed stop of the inner ring right -hand end of outer sleeve, the outer cylindrical surface of the middle part of flange for connecting with output end has outer spline, and the outer spline is engaged with the inner spline of clutch cover, and there is sliding assembly between the outer cylindrical surface of flange right -hand end and the inner hole of connecting flange, and the baffle for pressing sliding assembly is fixed on the right -hand end surface of flange through fastener no. 1, the locking device includes the hitch bolt articulated in the outer cylindrical surface of connecting flange, and the outer ring of clutch cover has the locking groove no. 1 of hitch bolt clamping, and the end of hitch bolt is detachably connected with fastener.

[0006] The outer cylindrical surface of flange right -hand end is outer step, and the outer step includes big step part, small step part, the sliding assembly includes copper sleeve, the inner ring of copper sleeve is covered on the big step part of flange, and the outer ring of copper sleeve is cooperated with the small hole part of connecting flange, and the left -hand end of copper sleeve is contacted with the end surface of big step part through the left -hand surface of the positioning flange of radial extension, and the right -hand surface of positioning flange is contacted with the left -hand end surface of connecting flange, the sliding assembly still includes copper pad arranged symmetrically with the positioning flange of copper sleeve, and the left -hand surface of copper pad is contacted with the end surface of big hole part of connecting flange, and the right -hand surface of copper pad and inner ring are installed in the annular installation groove of baffle.

[0007] The outer ring of copper sleeve is cooperated with connecting flange, and the inner ring of copper sleeve is cooperated with flange, and copper sleeve, copper pad and flange and connecting flange form sliding bearing structure, the cross section of copper sleeve is L type annular, and M grease storage grooves are arranged on the outer ring of copper sleeve, the depth of grease storage groove is 1±0.5mm, and the groove mouth of grease storage groove and the outer ring of copper sleeve are connected with smooth transition.

[0008] The O -ring embedded in the ring groove on the outer cylindrical surface of inner sleeve right -hand end is pressed and fixed with outer sleeve through gland and fastener no. 2, and dustproof grease sealing is carried out, realizes the displacement and angle compensation of coupling.

[0009] The inner ring of clutch cover is stepped hole structure, including small hole, big hole, and the inner spline of small hole inner wall is engaged with the outer spline of flange, and the big hole inner wall and big hole end surface do not contact sliding assembly and form air gap I, and the big hole part inner wall of connecting flange does not contact sliding assembly and forms air gap II, the air gap setting of left and right two places is to ensure that clutch cover, connecting flange do not contact sliding assembly and baffle, avoid the relative movement of clutch cover, connecting flange to sliding assembly when input end and output end are separated, and unnecessary abrasion is generated between clutch cover and sliding assembly, between connecting flange 7 and baffle.

[0010] The outer sleeve is provided with N outer channels which are equidistantly distributed along the circumference and parallel to the axis; the number of the inner channels of the outer sleeve is equal to and corresponds to the number of the outer channels of the inner sleeve; the retainer is arranged between the outer cylindrical surface of the outer sleeve and the outer spherical surface of the inner sleeve; N steel balls are embedded in the window holes of the retainer and are simultaneously arranged in the N inner channels on the inner surface of the outer sleeve and the N outer channels on the outer spherical surface of the inner sleeve; the inner sleeve, the retainer and the steel balls slide or deflect axially in the outer sleeve, and are axially limited by the hole clasp and the lining plate.

[0011] The connecting flange and the clutch sleeve are provided with teeth which are engaged with each other at the end face.

[0012] The connecting flange is provided with two sets of mounting holes which are matched with the slip bolt, and each set of mounting holes comprises a counterbore, a pin hole and a locking groove; the side surface of the connecting flange is provided with a counterbore which is matched with the pin hole; the pin is inserted into the pin hole and the end hole of the slip bolt through the counterbore; the pin is tightly matched with the pin hole, and the pin and the end hole of the slip bolt are matched with each other in clearance; the slip bolt can rotate around the pin freely; the slip bolt is clamped into the locking groove one of the clutch sleeve; and the clutch sleeve is locked with the connecting flange 7 through the slip bolt, the elastic pad and the nut.

[0013] The clutch sleeve is provided with an annular dismounting groove and two locking grooves one; the right end face of the clutch sleeve is uniformly provided with a plurality of convex teeth one; the adjacent two convex teeth one form a concave groove one; the height of the convex teeth one and the concave groove one is h; the left end of the connecting flange is uniformly provided with convex teeth two; the adjacent two convex teeth two form a concave groove two; the right end of the connecting flange is uniformly provided with threaded holes; the height of the convex teeth two and the concave groove two is h; the threaded holes are matched with the convex teeth two one by one; the threaded holes of the connecting flange are connected with the outer sleeve through the fastener three 22; the two locking grooves one of the clutch sleeve are matched with the two locking grooves two of the connecting flange one by one; the uniformly distributed convex teeth one of the clutch sleeve are matched with the uniformly distributed concave groove two of the connecting flange one by one; the uniformly distributed concave groove one of the clutch sleeve is matched with the uniformly distributed convex teeth two of the connecting flange one by one.

[0014] When the clutch sleeve is disengaged, the nut is loosened, the slip bolt is rotated until the rod of the slip bolt is disengaged from the locking grooves one and two, the clutch sleeve is withdrawn to the left through the dismounting groove, the withdrawal distance is greater than h, the convex teeth one and the concave groove one of the clutch sleeve are completely withdrawn from the concave groove two and the convex teeth two of the connecting flange, and the output end is disengaged from the input power; the slip bolt can be fixed on the peripheral equipment support through the nut.

[0015] The embedded assembly and disassembly of the slip bolt effectively and quickly control the resetting and disengagement of the clutch sleeve, and the application of the sliding bearing structure can achieve normal torque transmission during work without affecting the working modes of the input shaft and the output shaft; the sliding bearing is used during replacement of parts or maintenance, and the influence of misrotation is eliminated. The input and output of the shaft coupling are completely disengaged, which is safe and practical and is highly praised by users. BRIEF DESCRIPTION OF DRAWINGS

[0016] The utility model is further described in detail by the following examples provided in combination with the drawings;

[0017] Figure 1 It is the structure schematic drawing of the utility model;

[0018] Figure 2 It is the three-dimensional drawing of the clutch cover 2;

[0019] Figure 3 It is the sectional view of the clutch cover 2;

[0020] Figure 4 It is the three-dimensional drawing of the connecting flange 7;

[0021] Figure 5 It is the sectional view of the connecting flange 7;

[0022] Figure 6 It is the sectional view of the copper cover 8;

[0023] Figure 7 It is the partial sectional view of the copper cover 8;

[0024] Figure 8 It is the structure schematic drawing of the utility model in the disengagement state;

[0025] In the drawing: 1, flange, 2, clutch cover, 2-1, dismounting groove, 2-2, locking groove one, 2-3, convex tooth one, 2-4, recess one, 3, slip bolt, 4, elastic pad, 5, nut, 6, pin, 7, connecting flange, 7-1, counterbore, 7-2, pin hole, 7-3, locking groove 2, 7-4, convex tooth 2, 7-5, recess 2, 7-6, threaded hole, 8, copper cover, 8-1, grease storage groove, 9, copper pad, 10, cover, 11, fastener one, 12, outer cover, 13, steel ball, 14, retainer, 15, inner cover, 16, O ring, 17, ring groove, 18, gland, 19, fastener two, 20, lining plate, 21, hole clamping ring, 22, fastener three. DETAILED DESCRIPTION

[0026] Figure 1 In the utility model, the flange 1, the clutch cover 2, the slip bolt 3, the elastic pad 4, the nut 5, the pin 6, the connecting flange 7, the copper cover 8, the copper pad 9, the cover 10, the fastener one 11, the outer cover 12, the steel ball 13, the retainer 14, the inner cover 15, the O ring 16, the ring groove 17, the gland 18, the fastener two 19, the lining plate 20, the hole clamping ring 21 and the fastener three 22 are connected.

[0027] The input end is connected with the inner sleeve 15, and the output end is connected with the flange 1. The input end is of a ball cage structure, and the output end can be of a spline, a flat key or an arc-shaped tooth structure. N outer grooves are arranged on the outer spherical surface of the input end inner sleeve 15 and are distributed at equal distances along the circumference and are parallel to the axis. The number of the inner grooves of the outer sleeve 12 is equal to and corresponds to the number of the outer grooves of the inner sleeve 15. The retainer 14 is arranged between the inner cylindrical surface of the outer sleeve 12 and the outer spherical surface of the inner sleeve 15. The N steel balls 13 are embedded in the window holes of the retainer 14 and are simultaneously arranged in the N inner grooves on the inner surface of the outer sleeve 12 and the N outer grooves on the outer spherical surface of the inner sleeve 15. The inner sleeve 12, the retainer 14 and the steel balls 13 can slide axially or deflect an angle in the outer sleeve 12 and are limited axially from inside and outside by the hole clamping ring 21 and the lining plate 20. The O-shaped ring 16 arranged on the outer cylindrical surface of the right end of the inner sleeve 15 and embedded in the ring groove 17 is compressed by the gland 18. The fastener two 19 is fixed with the outer sleeve 12 to prevent dust and seal, and displacement and angle compensation of the coupling are realized. The inner ring of the clutch sleeve 2 is of a stepped hole structure and includes a small hole and a large hole. The inner wall of the small hole is an inner spline which is engaged with the outer spline of the flange 1. The inner wall of the large hole and the end face of the large hole are not in contact with the sliding assembly to form an empty gap I. The inner wall of the large hole of the connecting flange 7 is not in contact with the sliding assembly to form an empty gap II. The two empty gaps are arranged to ensure that the clutch sleeve 2 and the connecting flange 7 are not in contact with the sliding assembly and the cover 10, so as to avoid relative movement of the clutch sleeve 2 and the connecting flange 7 with respect to the sliding assembly when the input end is separated from the output end, and unnecessary abrasion is generated between the clutch sleeve and the sliding assembly and between the connecting flange 7 and the cover 10.

[0028] The threaded hole 7-6 on the connecting flange 7 is fixedly connected with the outer sleeve 12 through the fastener three 22. Two locking devices are arranged on the connecting flange 7. The locking device includes a counterbore 7-1, a pin hole 7-2, a locking groove two 7-3 and a slip bolt 3. The left side and the upper side of the locking groove two 7-3 are open. The pin holes 7-2 are symmetrically arranged on the front and back groove walls of the locking groove two 7-3. The connecting flange 7 is provided with the counterbore 7-1 corresponding to the pin hole 7-2. The pin 6 passes through the counterbore 7-1 and the pin hole 7-2 and the end hole of the slip bolt 3. The pin 6 is tightly matched with the pin hole 7-2 and is gap matched with the end hole of the slip bolt 3. The slip bolt 3 can rotate freely around the pin 6. The slip bolt 3 is clamped into the locking groove one 2-2 of the clutch sleeve 2. The clutch sleeve 2 is locked with the connecting flange 7 through the slip bolt 3, the elastic pad 4 and the nut 5. The outer spline of the flange 1 is engaged with the inner spline of the clutch sleeve 2. The L-shaped copper sleeve 8 and the copper pad 9 are arranged between the right end outer step of the flange 1 and the inner hole of the connecting flange 7. The copper sleeve 8, the copper pad 9, the flange 1 and the connecting flange 7 form a sliding bearing structure. The cover 10 is pressed against the copper pad 9 through the fastener one 11.

[0029] Figure 2 、 Figure 3In the middle, the clutch cover 2 is provided with annular disassembly groove 2-1, two locking grooves 2-2, K evenly distributed protrusions 2-3 and K recesses 2-4, the height of protrusion 2-3 and recess 2-4 is h. The clutch cover 2 is disassembled or assembled through the disassembly groove 2-1.

[0030] Figure 4 、 Figure 5 In the middle, the connecting flange 7 is provided with two counterbores 7-1, pin hole 7-2, locking groove 7-3, K evenly distributed protrusions 7-4 and K recesses 7-5, K evenly distributed threaded holes 7-6. The pin 6 passes through the counterbores 7-1 and the pin hole 7-2 and the eye bolt 3 end hole, the pin 6 is tightly matched with the pin hole 7-2 and is clearance fitted with the eye bolt 3 end hole, the eye bolt 3 can rotate freely around the pin 6, the height of protrusion 7-4 and recess 7-5 is h. The threaded hole 7-6 position corresponds to the protrusion 7-4.

[0031] The two locking grooves 2-2 of the clutch cover 2 correspond to the two locking grooves 7-3 of the connecting flange 7; the K evenly distributed protrusions 2-3 of the clutch cover 2 correspond to the K evenly distributed recesses 7-5 of the connecting flange 7; the K evenly distributed recesses 2-4 of the clutch cover 2 correspond to the K evenly distributed protrusions 7-4 of the connecting flange 7.

[0032] Figure 6 、 Figure 7 In the middle, the copper cover 8 is L-shaped annular in cross section, and M grease storage grooves are arranged on the outer cylindrical surface, the groove depth is 1±0.5mm, and the grease storage groove and the outer cylindrical surface R are smoothly transitioned. The outer cylindrical surface of the copper cover 8 is clearance fitted with the connecting flange 7, and the inner cylindrical surface of the copper cover 8 is interference fitted with the flange 1. The copper cover 8, the copper pad 9, the flange 1 and the connecting flange 7 form a sliding bearing structure.

[0033] Figure 1 It is the working state diagram of the utility model. In working, the input torque passes through the inner cover 15→the steel ball 13→the outer cover 12→the fastener three 22→the connecting flange 7→the protrusion and recess combination→the eye bolt→the clutch cover 2→the flange 1.

[0034] Figure 8When the motor or the parts of the metallurgical equipment need to be replaced or the circuit needs to be repaired, the motor is stopped, the nut 5, the elastic pad 3 and the slip bolt 3 are loosened, the disconnecting sleeve 2 is withdrawn to the left through the dismounting groove 2-1 (at this time, the spline of the flange 1 is still partially engaged with the spline of the disconnecting sleeve 2), the withdrawal distance is greater than h, the K teeth and grooves of the disconnecting sleeve 2 are completely withdrawn from the K grooves and teeth of the connecting flange 7, and the disconnecting sleeve 2 is disconnected from the input power. Even if the input end is misoperated and power is input, the input torque rotates through the inner sleeve 15, the steel ball 13, the outer sleeve 12, the fastener 22 and the connecting flange 7, the connecting flange 7 can only rotate around the copper sleeve 8, the flange 1 does not change the left end support structure and does not transmit power downward. At the same time, in the disconnected state, the slip bolt 3 can be fixed on the peripheral equipment support to realize double protection. When the replacement or repair is completed, the working state is entered from the disconnected state, the disconnecting sleeve 2 is only needed to be moved to the right through the dismounting groove 2-1, the K teeth and grooves of the disconnecting sleeve 2 are completely embedded in the K grooves and teeth of the connecting flange 7, the slip bolt 3 is embedded in the locking groove 2-2, and the elastic pad 4 and the nut 5 are tightened, which is simple and easy to operate.

[0035] The above only describes the preferred embodiments of the utility model and is not used to limit the utility model, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A high safety coupling characterized by: The coupling body comprises an inner sleeve (15) for connecting with an input end, a retainer (14), a steel ball (13), an outer sleeve (12), a gland (18) sleeved on the outer cylindrical surface of the inner sleeve (15) and fixed to the right end of the outer sleeve (12) by a fastener two (19), a connecting flange (7) fixed and connected to the left end of the outer sleeve (12) by a fastener three (22), and the connecting flange (7) is detachably connected with the clutch sleeve (2) by a locking device. The inner hole of the connecting flange (7) is a stepped hole comprising a small hole part and a large hole part connected to the right end of the small hole part, and the large hole part has a protruding stopper on the hole mouth in the axial direction, which is matched and positioned with the recessed stopper on the right end of the inner ring of the outer sleeve (12). The outer spline is arranged on the outer cylindrical surface of the middle part of the flange (1) for connecting with an output end, the outer spline is engaged with the inner spline of the clutch sleeve (2), there is a sliding assembly between the outer cylindrical surface of the right end of the flange (1) and the inner hole of the connecting flange (7), and the cover (10) for pressing the sliding assembly is fixed to the right end surface of the flange (1) by the fastener one (11). The locking device comprises a slip bolt (3) hinged to the outer cylindrical surface of the connecting flange (7), the outer ring of the clutch sleeve (2) has a locking groove one (2-2) for clamping the slip bolt (3), and the end part of the slip bolt (3) is detachably connected with the fastener.

2. The safety high coupling according to claim 1, characterized by: The right end outer cylindrical surface of the flange (1) is an outer step comprising a large step part and a small step part, the sliding assembly comprises a copper sleeve (8), the inner ring of the copper sleeve (8) is sleeved on the large step part of the flange (1), the outer ring of the copper sleeve (8) is matched with the small hole part of the connecting flange (7), the left surface of the positioning flange protruding from the left end of the copper sleeve (8) is in contact with the end surface of the large step part, and the right surface of the positioning flange is in contact with the left end surface of the connecting flange (7), the sliding assembly further comprises a copper pad (9) symmetrically arranged with the positioning flange of the copper sleeve (8), the left surface of the copper pad (9) is in contact with the end surface of the large hole part of the connecting flange (7), and the right surface and the inner ring of the copper pad (9) are arranged in the annular mounting groove of the cover (10).

3. The safety high coupling according to claim 2, characterized by: The outer ring of the copper sleeve (8) is matched with the connecting flange (7) in clearance, the inner ring of the copper sleeve (8) is matched with the flange (1) in interference, and the copper sleeve (8) and the copper pad (9) form a sliding bearing structure with the flange (1) and the connecting flange (7). The cross section of the copper sleeve (8) is L-shaped annular, and M grease storage grooves are arranged on the outer ring of the copper sleeve (8). The depth of the grease storage groove is 1±0.5mm, and the groove mouth and the outer ring of the copper sleeve (8) are smoothly connected.

4. The safety high coupling according to claim 1, characterized by: The O-shaped ring (16) embedded in the ring groove (17) arranged on the outer cylindrical surface of the right end of the inner sleeve (15) is pressed and fixed by the fastener two (19) and the outer sleeve (12) to prevent dust and seal grease, so as to realize displacement and angle compensation of the coupling.

5. The safety high coupling according to claim 1, characterized by: The inner ring of the clutch sleeve (2) is a stepped hole structure comprising a small hole and a large hole, the inner wall of the small hole is an inner spline engaged with the outer spline of the flange (1), the inner wall of the large hole and the end surface of the large hole are not in contact with the sliding assembly to form an empty interval I, and the inner wall of the large hole part of the connecting flange (7) is not in contact with the sliding assembly to form an empty interval II.

6. The safety high coupling according to claim 1, characterized by: The outer spherical surface of the inner sleeve (15) is provided with N outer channels which are equidistantly distributed along the circumference and parallel to the axis; the number of inner channels of the outer sleeve (12) is equal to and corresponds to the number of outer channels of the inner sleeve (15), the retainer (14) is arranged between the outer cylindrical surface of the outer sleeve (12) and the outer spherical surface of the inner sleeve (15), N steel balls (13) are embedded in the window holes of the retainer (14) in an interference fit, and are simultaneously arranged in the N inner channels on the inner surface of the outer sleeve (12) and the N outer channels on the outer spherical surface of the inner sleeve (15), the inner sleeve (15) and the retainer (14) and the steel balls (13) slide axially or deflect by an angle in the outer sleeve (12), and are axially limited by the hole clasp (21) and the lining plate (20).

7. The safety high coupling according to claim 1, characterized by: The connecting flange (7) and the clutch sleeve (2) have teeth on the end faces which are engaged with each other.

8. The safety high coupling according to claim 1, characterized by: The connecting flange (7) is provided with two sets of mounting holes which are matched with the slip bolt (3) for installation, and each set of mounting holes comprises a counterbore (7-1), a pin hole (7-2) and a locking groove (7-3), the pin hole (7-2) is symmetrically arranged on the front and rear groove walls of the locking groove (7-3), the connecting flange (7) is provided with a counterbore (7-1) corresponding to the pin hole (7-2) on the side surface, the pin (6) passes through the counterbore (7-1) and is inserted into the pin hole (7-2) and the end hole of the slip bolt (3), the pin (6) is tightly matched with the pin hole (7-2), the pin (6) is loosely matched with the end hole of the slip bolt (3), the slip bolt (3) can rotate around the pin (6) freely, the slip bolt (3) is clamped into the locking groove (2-2) of the clutch sleeve (2), and the clutch sleeve (2) is locked with the connecting flange (7) through the slip bolt (3), the elastic washer (4) and the nut (5).

9. The safety high coupling according to claim 8, characterized by: The clutch sleeve (2) is provided with an annular disassembly groove (2-1) and two locking grooves (2-2) on the outer ring, a plurality of convex teeth (2-3) are uniformly arranged on the right end face of the clutch sleeve (2), a concave groove (2-4) is formed between two adjacent convex teeth (2-3), and the height h of the convex teeth (2-3) and the concave groove (2-4) is the same. The connecting flange (7) is provided with convex teeth (7-4) on the left end, a concave groove (7-5) is formed between two adjacent convex teeth (7-4), threaded holes (7-6) are uniformly arranged on the right end of the connecting flange (7), the height h of the convex teeth (7-4) and the concave groove (7-5) is the same, and the threaded holes (7-6) are one-to-one corresponding to the convex teeth (7-4); the threaded holes (7-6) on the connecting flange (7) are connected with the outer sleeve (12) through the fastener three (22). The two locking grooves (2-2) of the clutch sleeve (2) are one-to-one corresponding to the two locking grooves (7-3) of the connecting flange (7); the uniformly arranged convex teeth (2-3) of the clutch sleeve (2) are one-to-one corresponding to the uniformly arranged concave grooves (7-5) of the connecting flange (7); and the uniformly arranged concave grooves (2-4) of the clutch sleeve (2) are one-to-one corresponding to the uniformly arranged convex teeth (7-4) of the connecting flange (7).

10. The safety high coupling according to claim 9, characterized by: When disengaged, loosen the nut (5), rotate the bolt (3) until the stem of the bolt (3) is disengaged from the locking slot one (2-2) and the locking slot two (7-3), and then withdraw the clutch sleeve (2) to the left through the dismounting slot (2-1) by a distance greater than h, so that the protrusion one (2-3) and the groove one (2-4) of the clutch sleeve (2) are completely withdrawn from the groove two (7-5) and the protrusion two (7-4) of the connecting flange (7), and the output end is disengaged from the input power; the bolt (3) can be fixed on the equipment support around the nut (5).

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