CN101852252A - Jacket-welded short CV joint coupling - Google Patents

Abstract

The invention relates to a jacket-welded short CV joint coupling which is mainly used for power transmission of short distance, small inclination angle and high rotation speed in metallurgical machinery, heavy-duty machinery, mining machinery, hoisting machinery, transport machinery and other industries. The coupling consists of an inner sleeve, an oil seal, a retainer, steel balls, jackets, contrate gears, bolts, a sealing baffle, hole retaining rings, a gland and an oil nozzle, wherein the two contrate gears are installed between the two jackets, the flange bosses of the contrate gears are fixed together by the bolts, and the contact surfaces of the contrate gears are of a dentiform structure and are meshed with each other to realize power transmission from a driving end and a driven end. By dividing the original jackets into the fluted jackets and the contrate gears, the invention realizes that the jackets and the contrate gears can be respectively made of more appropriate materials and made into more appropriate dimensions, thereby greatly improving the material utilization ratio, reducing the process redundancy, lowering the materials loss and the shaping difficulty, facilitating the design and the selection of the connection type of the contrite gears, enabling the organization and the arrangement of production to be more flexible, and having a shorter processing cycle. Thus, the invention meets batch and emergency requirements of modern mechanical industrial equipment.

Description

Jacket-welded short CV joint coupling

Technical field

The present invention relates to component of machine manufacturing technology field, particularly mechanical transmission short rzeppa coupling.

Background technique

Existing Short-spherical Cage Coupling is made up of parts such as inside and outside cover, retainer, steel ball, gland, oil sealing, sealing baffle, oil nozzles, wherein inside and outsidely puts many and is ellipse or circular straight flute road along the circumference cross section that evenly distributes.Torque is transmitted (or contrary direction) through interior cover raceway groove, steel ball, overcoat raceway groove.The effect of retainer is that the steel ball group is on the equidistant point of inside and outside cover raceway groove constantly.Two overcoats are meshing with each other by the end face tooth and realize the transmission of power of drive end and driven end.This type of Short-spherical Cage Coupling have constant-speed transmission, running steadily, compact structure, advantage that bearing capacity is big, adaptive capacity to environment is strong, has bigger work pivot angle, easy installation and removal, two overcoats are meshing with each other by the end face tooth, reduced the shearing force of attachment bolt, can effectively prevent to produce, be mainly used in the transmission of power of industries such as metallurgy, non-ferrous metal, petroleum machinery, textile manufacturing machine because of vibration causes the phenomenon of bolt looseness.Yet the overcoat of Short-spherical Cage Coupling is the parts of shaping difficulty maximum in the coupling, and its structural feature is that internal diameter is distributed with the very high steel ball slip raceway groove of several required precisions, and end face has the fan tooth that is connected with a joggle.The craft rate of production of this structure and stock utilization are all lower, and the machining cycle is long, and end face tooth Conncetion cimension has relative uniqueness with the steel ball raceway groove, and restricted application is unfavorable for the organization of production of depot spare part.

Summary of the invention

For overcoming the deficiencies in the prior art, goal of the invention of the present invention is to provide a kind of jacket-welded short CV joint coupling, adopts split type jacket structure, to realize enhancing productivity and stock utilization and widen the purpose of Applicable scope.

For achieving the above object, technological scheme of the present invention is: cover has splined hole or dowel hole in two, cooperates with corresponding shaft extension to connect, and realization connects and transmission of power with master and slave moved end; The extroversion of cover in being set on outward, interior cover, put outward to have respectively along the circumference cross section that evenly distributes and be oval or circular straight flute road with the steel ball contact position, between interior cover and the overcoat two groups of steel balls are housed, steel ball is installed in the window of retainer, torque is through interior cover raceway groove, steel ball, the raceway groove of overcoat transmits, the retainer both sides that are embedded with steel ball are equipped with oil sealing and sealing baffle respectively, the sealing system that the hole is formed with back-up ring, gland is equipped with in the outer end of sealing system, on the screw of gland oil nozzle is housed, it is characterized in that: two contrate gears are housed between two overcoats, have the flange boss on the external cylindrical surface of contrate gear, contrate gear through four and above bolt together, the surface of contact of contrate gear is a toothing, be meshing with each other by the end face tooth and realize drive end and driven end transmission of power, overcoat and contrate gear are welded together.

The present invention compared with prior art has the following advantages:

1, original overcoat is divided into 2 parts of raceway groove overcoat and contrate gear after, overcoat and contrate gear can be selected more suitably material and Dimensions respectively, and stock utilization increases substantially, and machining allowance reduces, reduce spillage of material and shaping difficulty, be convenient to the design selection of fluted disc Connecting format; Overcoat can be heat-treated separately, and the heat treatment cost is corresponding to be minimized, and overcoat and contrate gear part operation can be carried out simultaneously, shortens the machining cycle, satisfies the batch and the urgent need of modern mechanical industry equipment.

2, contrate gear adds man-hour separately, can design different end face Conncetion cimension according to the actual requirements, satisfy different operating mode design requirements, overcoat is owing to no longer be subjected to the restriction of outside Conncetion cimension, can produce and organize depot spare part in batches, to mate different contrate gears, make the organization of production arrangement have greater flexibility.

3, field work adaptive capacity of the present invention is strong, easy for installation, the bearing capacity height, and running is steadily.

Description of drawings

Fig. 1 is a structural drawing of the present invention;

Fig. 2 is the A-A sectional view of Fig. 1.

Embodiment

As shown in Figure 1 and Figure 2, the present invention is made up of with back-up ring 9, gland 10, oil nozzle 11 interior cover 1, oil sealing 2, retainer 3, steel ball 4, overcoat 5, contrate gear 6, bolt 7, sealing baffle 8, hole; Cover 1 has spline through hole or band keyway endoporus to cooperate connection with corresponding shaft extension in two, and have a sphere ring boss on interior cover 1 external diameter, match with the inner ball surface of retainer 3, between cover 1 and the overcoat 54 liang of groups of steel ball are housed in two, the concrete quantity of steel ball 4 is determined by required transmission capacity and internal geometric size; In cover 1, have many to be oval or circular straight flute road with steel ball 4 contact position on the overcoat 5 along the circumference cross section that evenly distributes, torque is transmitted (or contrary direction) through the raceway groove of the raceway groove of interior cover 1, steel ball, overcoat 5; The endoporus of overcoat 5 matches with the outer spherical surface of retainer 3; Steel ball 4 is installed in the window of retainer 3, the effect of retainer 3 is that the steel ball of being controlled is on the same equidistant point constantly, in the retainer 3, external diameter is respectively and interior cover 1, the part of two spheres that overcoat 5 matches, its centre of sphere is symmetric arrangement to steel ball fenestra median plane, this is the structural feature of ball cage coupling, its effect is that the steel ball of being controlled is on the same equidistant point constantly, to reach the effect of constant-speed transmission, torque is imported by the drive end shaft extension, the raceway groove that in drive end, overlaps, steel ball, the raceway groove of overcoat is to the raceway groove of driven end overcoat, steel ball, the raceway groove of interior cover transmits, and exports through the driven end shaft extension; Retainer 3 both sides that are embedded with steel ball 4 are equipped with oil sealing 2 and sealing baffle 8 respectively, the sealing system that the hole is formed with back-up ring 9, oil sealing 2 is in the inboard of two glands 10, sealing baffle 8, the hole uses back-up ring 9 at the middle part, gland 10 is equipped with in the outer end of sealing system, oil nozzle 11 is housed on the screw of gland 10, the quantity of oil nozzle 11 is decided as required, gland 10 usefulness screws are contained on the outside end face of overcoat 5, gland 10, oil sealing 2, sealing baffle 8, the independent all-sealed structure of single ball cage universal joint is formed in the hole with back-up ring 9, the inner filling ageing-resistant performance is good, the long-acting lubricating grease that contains extreme pressure agent, this all-sealed structure can prevent effectively that internal lubrication fat from revealing and introduced contaminants enters universal joint inside, can fully ensure the normal operation of coupling; Two contrate gears 6 are housed between two overcoats 5, have the flange boss on the external cylindrical surface of contrate gear 6, contrate gear 6 is fixed together through four and above bolt 7, the surface of contact of contrate gear 6 is a toothing, be meshing with each other by the end face tooth and realize drive end and driven end transmission of power, overcoat 5 is welded together with contrate gear 6, two uniform bolts 7 of contrate gear 6 usefulness are fixed together, have the five equilibrium tooth on two contrate gear 6 end faces and be used for transmitting torque, 7 on uniform bolt plays 6 effects of two contrate gears of fastening connection, the not direct transmitting torque of bolt 7, bolt 7 force-bearing situations have been improved, contrate gear 6 end faces tooth-like structure decrease the quantity of attachment bolt 7, improved the reliability that connects transferring power, it is independently whole that two half-couplings are respectively had of one's own, the sequence of sanqu songs within a particular musical mode when preventing that the two halves coupling from installing, single hermetic ball cage universal joint can directly correspondingly be installed, and need not to decompose assembling again, gives end user's installation, disassembling section is provided convenience.

Claims (2)

1. jacket-welded short CV joint coupling, cover (1) has splined hole or dowel hole in two, cooperates with corresponding shaft extension to connect, and realizes and the connecting and transmission of power of master and slave moved end; Two overcoats (5) are arranged on the extroversion of interior cover (1), interior cover (1), overcoat (5) is gone up to have respectively along the circumference cross section that evenly distributes with steel ball (4) contact position and is ellipse or circular straight flute road, between interior cover (1) and the overcoat (5) two groups of steel balls (4) are housed, steel ball (4) is installed in the window of retainer (3), torque is through interior cover (1) raceway groove, steel ball (4), the raceway groove of overcoat (5) transmits, retainer (3) both sides that are embedded with steel ball (4) are equipped with oil sealing (2) and sealing baffle (8) respectively, the sealing system that the hole is formed with back-up ring (9), gland (10) is equipped with in the outer end of sealing system, oil nozzle (11) is housed on the screw of gland (10), it is characterized in that: two contrate gears (6) are housed between two overcoats (5), have the flange boss on the external cylindrical surface of contrate gear (6), contrate gear (6) is fixed together through four and above bolt (7), the surface of contact of contrate gear (6) is a toothing, is meshing with each other by the end face tooth and realizes drive end and driven end transmission of power.

2. jacket-welded short CV joint coupling according to claim 1 is characterized in that: overcoat (5) is welded together with contrate gear (6).

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