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Hebei Z6 Type Expansion Coupling Sleeve

The main purpose of Z6 type expansion coupling sleeve (referred to as expansion sleeve) is to replace the coupling effect of single key and spline to realize the coupling of mechanical parts (such as gears, flywheels, pulleys, etc.) and shafts to transmit loads. Its function In use, it is divided into two categories: expansion and locking. ...

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Product Details

The main purpose of Z6 type expansion coupling sleeve (referred to as expansion sleeve) is to replace the coupling effect of single key and spline to realize the coupling of mechanical parts (such as gears, flywheels, belt pulleys, etc.) and shafts to transmit loads. Its function In use, it is divided into two categories: expansion and locking.

As a kind of basic part, the expansion coupling sleeve was developed in the XNUMXs.Such as Germany, Japan, the United States, etc., widely used this in mechanical connection under heavy loads.In the connection of the wheel and the shaft, it is a kind of keyless connection device that realizes the load transmission by tightening the bolts to make the pressure and friction between the containing surfaces realize the connection between the mechanical parts (such as gears, flywheels, belt wheels, etc.) Connection to transfer load.It uses bolts to generate huge holding force between the inner ring and the shaft, and between the outer ring and the hub; when under load, the torque is transmitted by the combined pressure of the expansion sleeve and the mechanical part and the accompanying frictional force. , Axial force or the combined load of the two.

The Z6 type expansion coupling sleeve can combine the shaft hub with a larger fit gap. When disassembling, loosen the bolts to make the connected parts easy to disassemble.When swelling, the contact surface is tightly fitted and not easy to rust, and it is also easy to disassemble.

The Z6 type expansion coupling sleeve transmits large torque for a long time during work, which is easy to cause fatigue deformation of the metal, causing fatigue and wear between the expansion sleeve and the fastener. At the same time, the sintering machine is generally large, which causes difficulty.In response to such problems, polymer composite materials can be used in the field, and the matching relationship between parts, and the operating state and wear of the equipment generally have the corresponding relationship between the parts and the mold technology.

It is mainly divided into the following steps:Firstly perform surface treatment on the worn parts of the shaft journal and the inner hole of the gear to be clean, dry and rough, and expose the original metal color. Coat the surface of the shaft diameter with polymer metal material 2211F, flatten it with a ruler, and solidify; surface treatment of the inner hole of the gear , And apply polymer metal materials to smooth and solidify the wear marks; after the material is heated and solidified, the surface of the material is smoothed, and the inner ring of the expansion sleeve is used as a mold to match the size of the shaft diameter surface, and the edge of the foot is polished, and then measured The size of the expansion sleeve; coat the inner and outer rings of the expansion sleeve with polymer metal materials for general assembly.

Installation reference example

Parameters of Z6 Type Expansion Coupling Sleeve

basic size							Rated load		Socket head cap screws			Pressure on joint surface between expansion sleeve and shaft Pf N/mm2	The pressure on the joint surface between the expansion sleeve and the hub Pf′ N/mm 2	Weight kg
d	D	L4	L3	L2	D1	The 1	Axial force F1 KN	Torque M1 KN·m	d1	n	MA N·m
mm							Axial force F1 KN	Torque M1 KN·m	d1	n	MA N·m
14	55	17	30	22	62	38	18	127	M8	3	25	208	52.5	0.48
16	55	17	30	22	62	38	18	142	M8	3	25	181	52.5	0.47
18	55	17	30	22	62	38	18	157	M8	3	25	161	52.5	0.46
19	55	17	30	22	62	38	18	165	M8	3	25	152	52.5	0.46
20	55	17	30	22	62	38	18	172	M8	3	25	145	52.5	0.45
22	55	17	30	22	62	38	25.5	285	M8	3	35	186	75	0.44
24	55	17	30	22	62	38	25.5	307	M8	3	35	170	75	0.42
25	55	17	30	22	62	38	25.5	315	M8	3	35	163	75	0.41
28	55	17	30	22	62	38	31.5	435	M8	3	41	175	89	0.39
30	55	17	30	22	62	38	31.5	472	M8	3	41	163	89	0.37
24	65	17	30	22	72	38	37.4	440	M8	5	30	244	90	0.62
25	65	17	30	22	72	38	37.4	460	M8	5	30	234	90	0.61
28	65	17	30	22	72	38	43.6	600	M8	5	35	243	105	0.58
30	65	17	30	22	72	38	43.6	640	M8	5	35	227	105	0.56
32	65	17	30	22	72	38	43.6	690	M8	5	35	213	105	0.55
35	65	17	30	22	72	38	52.5	910	M8	5	41	234	126	0.51
38	65	17	30	22	72	38	52.5	990	M8	5	41	216	126	0.48
40	65	17	30	22	72	38	52.5	1050	M8	5	41	205	125	0.46
30	80	20	33	25	87	41	52.4	780	M8	7	30	232	87	1.01
32	80	20	33	25	87	41	52.4	830	M8	7	30	217.5	87	0.99
35	80	20	33	25	87	41	61	1060	M8	7	35	232	102	0.96
38	80	20	33	25	87	41	61	1150	M8	7	35	214	102	0.92
40	80	20	33	25	87	41	61	1220	M8	7	35	203	102	0.89
42	80	20	33	25	87	41	73.5	1540	M8	7	41	233	122	0.86
45	80	20	33	25	87	41	73.5	1650	M8	7	41	217	122	0.82
48	80	20	33	25	87	41	73.5	1760	M8	7	41	203	122	0.76
50	80	20	33	25	87	41	73.5	1830	M8	7	41	195	122	0.73
Note: The mechanical performance level of Z6 type expansion coupling set screws is 12.9.

Hebei Z6 Type Expansion Coupling Sleeve　Hebei Z6 Type Expansion Coupling Sleeve　

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Hebei Z6 Type Expansion Coupling Sleeve