CN2192760Y - Wholly universal axle coupling - Google Patents

Abstract

The utility model discloses an integral universal shaft coupling which is composed of two sets of transmission devices, a spline shaft, and two connecting shaft sleeves. The transmission devices are respectively composed of a trinacriform cylinder, three rod shaft sleeves, three spherical rollers, a blocking cover, a sealing ferrule, and a rubber sleeve. The three rod shaft sleeves and the three spherical rollers can follow the trinacriform cylinder to flex along the spline shaft. The positioning device of each connecting shaft sleeve is composed of a wedge iron, a rubber spring, and a positioning block. The structure of the integral universal shaft coupling is compact. The integral universal shaft coupling can realize large flexing quantity within a shorter shaft torque, and convenient and reliable positioning on a shaft neck. The integral universal shaft coupling has convenient assembly and disassembly, uniform bearing loading, and stable transmission rotary speed torque. The allowable torque is enhanced more than 40% under the same turning diameter.

Description

Wholly universal axle coupling

The utility model relates to a kind of transmission part, particularly coupling.

In the prior art, widely used in recent years universal-joint-pin type universal joiner, its formation is jaw, cross axle and rolling bearing, deficiency is:

1. two bars are stressed when working, and two bars are subjected to countertorque in addition, and jaw separates again separately, on the equipment such as rolling mill that are subjected to the strict restriction of swing diameter, use, because cross axle and jaw size can not be made enough big, and the ability of coupling transmitting torque is restricted, and influence working life.

2. be subjected to structural constraint, be difficult to realize flexible connection the in the short between centers square;

3. there is the gap in the roller footpath with connecting of axle sleeve, and set screw is easily loosening, easily gets rusty simultaneously and brings difficulty to fastening and dismounting.

The purpose of this utility model be to avoid above-mentioned deficiency of the prior art and a kind of compact structure is provided, extending amount is big, torque transmission capability is high, driving torque weighing apparatus fixed, inclination angle allowable is big, long service life, whole universal shaft type coupling easy to loading and unloading.

The purpose of this utility model can realize by following measure:

This coupling is by two cover transmission devices, splined shaft and two connection axle sleeves are formed, two cover transmission devices connect by splined shaft, every cover transmission device is by three fork-shaped cylinders, three rod sleeves, three spherical rollers, the shelves lid, sealing ring and rubber bush are formed, three fork-shaped cylinders outside is sealed by sealing ring, on the end face of its cylinder circumference, every the position of hexagonal angle three equal diameters are arranged, and be distributed on the cylindrical open-minded hole slot on the same radius, three spherical rollers are contained in respectively on three bar axles of three rod sleeves, in the open-minded hole slot with its three fork-shaped cylinders of packing into, and with shelves a cap seal close, the rubber bush sealing, three rod sleeves and spherical roller can be flexible along splined shaft, and two covers connect axle sleeve and lay respectively at the transmission device outer end;

The purpose of this utility model can also realize by following measure:

The positioning device that connects axle sleeve is made up of positioning block, rubber spring and drift, the positioning block top is for the quadrangular oblique crank Z and have horizontal wedge hole, and the below is cylindrical, and rubber spring is square internally and round externally annular, be sleeved on the positioning block quadrangular oblique crank Z, drift can move along wedge hole direction is stressed;

Spherical roller is made inner through hole, and the structure of outer end sealing adopts rubber seal with the synapsis sealing that is coupling of spherical roller and bar, and the bearing seal of realization monomer can be without sealing ring and rubber bush;

Spherical roller is contained on the bar axle by rolling element;

Spherical roller is contained on the bar axle by sliding bearing.

Drawing is described as follows:

Accompanying drawing is whole universal shaft type coupling schematic representation.

Below in conjunction with accompanying drawing structure of the present utility model is elaborated:

The utility model is by two cover transmission devices, a splined shaft ［ 10 ］ and two connection axle sleeves ［ 12 ］ are formed, two cover transmission devices connect by splined shaft ［ 10 ］, the sheathed positioning device of the joining shaft of one end, every cover transmission device is by three fork-shaped cylinders ［ 8 ］, three rod sleeves ［ 9 ］, three spherical rollers ［ 6 ］ constitute, three spherical rollers ［ 6 ］ are contained in respectively on the bar axle of three rod sleeves ［ 9 ］, its encaseing method is that spherical roller ［ 6 ］ is contained on the bar axle by rolling element ［ 7 ］ or sliding bearing, three fork-shaped cylinders ［ 8 ］ are to have three equal diameters every the position of hexagonal angle on the end of circumference, and be evenly distributed on the cylindrical open-minded hole slot on the same radius, three rod sleeves ［ 9 ］ are packed into together with three spherical rollers ［ 6 ］ in the open-minded hole slot of three fork-shaped cylinders, there are shelves lids ［ 1 ］ and rubber bush ［ 2 ］ that spherical roller is enclosed in the groove outward, and can be flexible along the direction of splined shaft ［ 10 ］.Three fork-shaped cylinders ［ 8 ］ outside is sealed by sealing ring ［ 11 ］, excessive to prevent lubricating grease, perhaps adopt spherical roller ［ 6 ］ is made inner through hole, the structure of outer end sealing, adopt rubber seal with the be coupling monomer sealing means of synapsis sealing of spherical roller ［ 6 ］ and bar, to prevent the excessive of lubricating grease, this sealing means can take down sealing ring ［ 11 ］ and rubber bush ［ 2 ］.Positioning device is made up of positioning block ［ 5 ］, rubber spring ［ 4 ］ and drift ［ 3 ］.When connecting the assembling of axle sleeve and axle journal, the drift of urgent positioning device ［ 3 ］, positioning block ［ 5 ］ is moved up and compression rubber spring ［ 4 ］, the transmission axle journal is put into the connection axle sleeve, take out drift ［ 3 ］, positioning block ［ 5 ］ relies on the expansion elastic force of rubber spring ［ 4 ］ to eject and compresses the power transmission axle journal, finishes fixation procedure.Inverse operation also can be finished the axle work of unloading.

Transmission principle of the present utility model is: the two ends of coupling connect axle sleeve and all can be used as initiatively or passive transmission.During work, connection axle sleeve with the coupling two ends connects with driving shaft, driven axle respectively, driving torque is passed to spherical roller through drive end three fork-shaped cylinders, spherical roller is through roll piece or sliding bearing transmission three rod sleeves, driving splined shaft rotates, torque is exported, Partner three rod sleeves coaxial with splined shaft rotate synchronously, pass to spherical roller through bearing again, drive Partner three fork-shaped cylinder warp beam sleeves driven axle is passed in torque, thereby satisfy whole universal shaft type coupling rotating speed, torque weighing apparatus calmly, the need of work that the transmission inclination angle changes.

The utility model compared with prior art has following outstanding effect:

1. compact conformation can be realized than the flexible connection in the square between minor axis;

2. owing to adopt spherical roller transmission load, the self-aligning performance is good, bearing load equilibrium, the service life that can improve bearing.

3. the transmission inclination angle is about 10 °, can satisfy the demand of rolling mill transmission change of pitch angle;

4. easy to loading and unloading;

5. this shaft coupling is in the situation of identical tactical diameter, and the comparable universal coupling with spider of its torque allowable improves more than 40%.

Claims (5)

1, the universal shaft type coupling of a kind of integral body, it is characterized in that by two cover transmission devices, splined shaft [10] and two connection axle sleeves [12] are formed, two cover transmission devices connect by splined shaft [10], every cover transmission device is by three fork-shaped cylinders [8], three rod sleeves [9], three spherical rollers [6], shelves lids [1], sealing ring [11] and rubber bush [2] are formed, three fork-shaped cylinders [8] outside is sealed by sealing ring [11], on the end face of its cylinder circumference, every the position of hexagonal angle three equal diameters are arranged, and be distributed on the cylindrical open-minded hole slot on the same radius, three spherical rollers [6] are contained in respectively on three bar axles of three rod sleeves [9], in the open-minded hole slot with its three fork-shaped cylinders [8] of packing into, and with shelves lid [1] sealing, rubber bush [2] sealing, three rod sleeves [9] and spherical roller [6] can be flexible along splined shaft [10], and two covers connect axle sleeve [12] and lay respectively at the transmission device outer end;

2, the universal shaft type coupling of integral body according to claim 1, it is characterized in that: the positioning device that connects axle sleeve is made up of positioning block ［ 5 ］, rubber spring ［ 4 ］ and drift ［ 3 ］, positioning block ［ 5 ］ top is for the quadrangular oblique crank Z and have horizontal wedge hole, the below is cylindrical, rubber spring ［ 4 ］ is square internally and round externally annular, be sleeved on positioning block ［ 5 ］ the quadrangular oblique crank Z, drift ［ 3 ］ can move along wedge hole direction is stressed;

3, the universal shaft type coupling of integral body according to claim 1 and 2 is characterized in that: spherical roller ［ 6 ］ is made inner through hole, and the structure of outer end sealing adopts rubber seal with the synapsis sealing that is coupling of spherical roller ［ 6 ］ and bar;

4, the universal shaft type coupling of integral body according to claim 1 and 2, it is characterized in that: spherical roller ［ 6 ］ is contained on the bar axle by rolling element ［ 7 ］;

5, the universal shaft type coupling of integral body according to claim 1 and 2, it is characterized in that: spherical roller ［ 6 ］ is contained on the bar axle by sliding bearing.

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