CN214248057U

CN214248057U - Telescopic cross shaft type universal coupling capable of damping

Info

Publication number: CN214248057U
Application number: CN202022960581.7U
Authority: CN
Inventors: 杨春娣
Original assignee: Zhenjiang Yuanda Transmission Machinery Co ltd
Current assignee: Zhenjiang Yuanda Transmission Machinery Co ltd
Priority date: 2020-12-09
Filing date: 2020-12-09
Publication date: 2021-09-21
Anticipated expiration: 2030-12-09

Abstract

The utility model discloses a telescopic cross-axle type universal coupling capable of damping, wherein a telescopic axle extends into an axle sleeve, the tail ends of the telescopic axle and the axle sleeve are respectively provided with a universal joint, the outer wall of the axle sleeve is provided with two chutes which are axially symmetrically arranged and two fixed slots which are axially symmetrically arranged, the inner wall of each fixed slot is uniformly provided with a plurality of limiting slots at intervals of a certain gap, and a sliding block is slidably connected in each chute; the limiting pin penetrates through the sliding block, two ends of the limiting pin extend into the fixing grooves and are clamped in one limiting groove in the fixing grooves, and nuts are connected to two ends of the limiting pin in a threaded mode; the shaft sleeve is supported on the supporting seat, and the supporting seat is fixedly connected to the buffer seat. The utility model discloses simple structure can realize the length adjustment between two connecting axles, sets up bearing structure on the axle sleeve, has also improved pivoted stationarity, sets up buffer structure below bearing structure, can reduce because of the noise that the vibration produced, prolonged life.

Description

Telescopic cross shaft type universal coupling capable of damping

The technical field is as follows:

the utility model relates to a can absorbing flexible cross axle type universal joint.

Background art:

the coupler has the important function of irreplaceability of common parts in a mechanical structure, but the existing coupler has fixed length and is only suitable for one length, and the length adjustment is inconvenient, so that when the main shaft or the auxiliary shaft is longer, the coupler cannot improve the connection volume of the main shaft or the auxiliary shaft, the connection efficiency is reduced, in addition, the existing universal coupler has no intermediate support, can generate strong vibration in work, and has the defects of high noise, easy damage and short service life. Therefore, there is a need to improve the prior art to overcome the deficiencies of the prior art.

The invention content is as follows:

the utility model relates to a solve the problem that above-mentioned prior art exists and provide a flexible cross axle type universal joint that can the absorbing.

The utility model discloses the technical scheme who adopts has: a shock-absorbing telescopic cross shaft type universal coupling comprises a telescopic shaft, a shaft sleeve and a universal joint, wherein the telescopic shaft extends into the shaft sleeve, the tail ends of the telescopic shaft and the shaft sleeve are respectively provided with the universal joint, the shock-absorbing telescopic cross shaft type universal coupling further comprises a sliding block, a locking screw, a limiting pin, a nut, a supporting seat and a buffer seat, the outer wall of the shaft sleeve is provided with two sliding chutes which are axially symmetrically arranged and two fixing grooves which are axially symmetrically arranged, the sliding chutes and the fixing grooves are arranged on the outer wall of the shaft sleeve at intervals of 90 degrees, the inner wall of each fixing groove is uniformly provided with a plurality of limiting grooves at intervals, the sliding block is slidably connected into the sliding chutes, and the sliding block is fixedly connected onto the tail end face of the telescopic shaft through the locking screw; the limiting pin penetrates through the sliding block, two ends of the limiting pin extend into the fixing grooves and are clamped in one limiting groove in the fixing grooves, and nuts are connected to two ends of the limiting pin in a threaded mode; the shaft sleeve is supported on a supporting seat, and the supporting seat is fixedly connected to the buffer seat; the buffer seat comprises an upper supporting plate, a lower supporting plate, a buffer rubber pad, a guide rod and a spring, wherein the upper supporting plate and the lower supporting plate are arranged in parallel, the buffer rubber pad is arranged between the upper supporting plate and the lower supporting plate, the guide rod penetrates through the upper supporting plate and is fixedly connected with the lower supporting plate, the spring sleeve is arranged on the guide rod, and the upper end and the lower end of the spring are respectively abutted to the upper supporting plate and the lower supporting plate.

Further, the spacer pin includes rectangle pole portion and screw rod portion, and two screw rod portion fixed connection are on two terminal surfaces of rectangle pole portion.

Further, the spacing groove is of a rectangular groove structure, the rectangular rod part is clamped in the spacing groove, and the nut is in threaded connection with the screw rod part.

Furthermore, a rectangular hole is formed in the sliding block, and the rectangular rod part is inserted into the rectangular hole.

Further, the supporting seat comprises a bearing seat, a limiting end cover, a retaining ring and a bearing, wherein the bearing seat, the limiting end cover, the retaining ring and the bearing are sleeved on the telescopic shaft, a positioning step surface is arranged on the shaft sleeve, an inner ring of the bearing is abutted to the positioning step surface, the limiting end cover is fixedly connected with the bearing seat, a protrusion on the inner wall surface of the limiting end cover is abutted to an outer ring of the bearing, the retaining ring axially limits the limiting end cover, the bearing seat is fixed on the upper supporting plate, and an oil filling hole is formed in the bearing seat.

Furthermore, a sealing plug is connected to the oil filling hole in a threaded manner.

The utility model discloses following beneficial effect has:

1) the utility model discloses simple structure can realize the length adjustment between two connecting axles, and the structure cooperation is reliable, and stability is good, and connection efficiency is low, can be applicable to multiple connection occasion, excellent in use effect.

2) The utility model discloses set up bearing structure on the axle sleeve, also improved pivoted stationarity, set up buffer structure below bearing structure, can reduce because of the noise that the vibration produced, prolonged life.

Description of the drawings:

fig. 1 is a three-dimensional structure diagram of the present invention.

Fig. 2 is a plan view of the present invention.

Fig. 3 is a partial enlarged view of the present invention.

Fig. 4 is a structural diagram of the stop pin of the present invention.

The specific implementation mode is as follows:

the present invention will be further described with reference to the accompanying drawings.

Referring to fig. 1 to 4, the utility model relates to a telescopic cross axle type universal coupling capable of damping, which comprises a telescopic axle 1, an axle sleeve 2, a universal joint 3, a slide block 4, a locking screw 5, a limit pin 6, a nut 7, a supporting seat 8 and a buffer seat 9, wherein the telescopic axle 1 extends into the axle sleeve 2, the tail ends of the telescopic shaft 1 and the shaft sleeve 2 are respectively provided with a universal joint 3, the outer wall of the shaft sleeve 2 is provided with two sliding chutes 21 which are axially symmetrically arranged and two fixing grooves 22 which are axially symmetrically arranged, the sliding chutes 21 and the fixing grooves 22 are arranged on the outer wall of the shaft sleeve 2 at an interval of 90 degrees, a plurality of limiting grooves 23 are uniformly distributed on the inner wall of the fixing groove 22 at intervals, the sliding block 4 is connected in the sliding groove 21 in a sliding mode, the sliding block 4 is fixedly connected to the tail end face of the telescopic shaft 1 through a locking screw 5, the shaft sleeve 2 is supported on the supporting seat 8, and the supporting seat 8 is fixedly connected to the buffer seat 9.

The limit pin 6 penetrates through the sliding block 4, two ends of the limit pin 6 extend into the fixing grooves 22, two ends of the limit pin 6 are correspondingly clamped in one limit groove 23 at the same position in the two fixing grooves 22, and nuts 7 are in threaded connection with two ends of the limit pin 6.

The utility model provides a bearing frame 82, spacing end cover 83, retaining ring 84 and bearing 85 on axle sleeve 2 are established including the cover to supporting seat 8, are equipped with location step face 20 on the axle sleeve 2, and the inner circle of bearing 85 is contradicted on location step face 20, and spacing end cover 83 and bearing frame 82 fixed connection, the arch on the spacing end cover 83 internal face is contradicted on the outer lane of bearing 85, and retaining ring 84 carries out the axial spacing to spacing end cover 83, and bearing frame 82 is fixed in last backup pad 91.

An oil filling hole 821 is arranged on the bearing seat 82, and a sealing plug 822 is connected to the oil filling hole 821 through threads. When in use, lubricating oil is injected into the oil injection hole 821 to lubricate the bearing.

The utility model provides a buffer base 9 includes backup pad 91, bottom suspension fagging 92, cushion rubber pad 93, guide arm 94 and spring 95, goes up backup pad 91 and bottom suspension fagging 92 parallel arrangement each other, and cushion rubber pad 93 arranges in between backup pad 91 and the bottom suspension fagging 92, and guide arm 94 pass backup pad 91 and with bottom suspension fagging 92 fixed connection, and spring 95 cover is established on guide arm 94, and contradict respectively on last backup pad 91 and bottom suspension fagging 92 at spring 95's upper and lower both ends.

The utility model provides a spacer pin 6 includes rectangle pole portion 61 and screw rod portion 62, and two screw rod portion 62 fixed connection are on two terminal surfaces of rectangle pole portion 61.

In order to better position the limit pin 6 in the limit groove 23, the limit groove 23 is a rectangular groove structure, the rectangular rod part 61 is clamped in the limit groove 23, and the nut 7 is in threaded connection with the screw rod part 62. The rectangular rod part 61 is clamped in the rectangular limiting groove 23, so that the positioning stability of the limiting pin 6 is ensured.

The slider 4 is provided with a rectangular hole 41, and the rectangular rod part 61 is inserted into the rectangular hole 41. The rectangular rod part 61 is matched with the rectangular hole 41, so that the assembly stability is ensured, and the rotation phenomenon of the rectangular rod part 61 in the rectangular hole 41 is avoided.

The utility model discloses simple structure can realize the length adjustment between two connecting axles, and the structure cooperation is reliable, and stability is good, and connection efficiency is low, can be applicable to multiple connection occasion, excellent in use effect.

The utility model discloses set up bearing structure (being the bearing) on axle sleeve 2, also improved pivoted stationarity, set up buffer structure below bearing structure, can reduce because of the noise that the vibration produced, prolonged life.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications can be made without departing from the principle of the present invention, and these modifications should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a can absorbing flexible cross axle type universal coupling, includes telescopic shaft (1), axle sleeve (2) and universal joint (3), telescopic shaft (1) stretches in axle sleeve (2), all is equipped with one universal joint (3), its characterized in that at the end of telescopic shaft (1) and axle sleeve (2): the telescopic shaft is characterized by further comprising a sliding block (4), a locking screw (5), a limiting pin (6), a nut (7), a supporting seat (8) and a buffer seat (9), wherein two sliding chutes (21) which are axially symmetrically arranged and two fixing grooves (22) which are axially symmetrically arranged are formed in the outer wall of the shaft sleeve (2), the sliding chutes (21) and the fixing grooves (22) are arranged on the outer wall of the shaft sleeve (2) at intervals of 90 degrees, a plurality of limiting grooves (23) are uniformly distributed on the inner wall of the fixing grooves (22) at intervals of a certain gap, the sliding block (4) is slidably connected in the sliding chutes (21), and the sliding block (4) is fixedly connected to the tail end face of the telescopic shaft (1) through the locking screw (5); the limiting pin (6) penetrates through the sliding block (4), two ends of the limiting pin (6) extend into the fixing groove (22) and are clamped in a limiting groove (23) in the fixing groove (22), and nuts (7) are connected to two ends of the limiting pin (6) in a threaded mode; the shaft sleeve (2) is supported on a supporting seat (8), and the supporting seat (8) is fixedly connected to a buffer seat (9); buffer seat (9) are including last backup pad (91), bottom suspension fagging (92), cushion rubber pad (93), guide arm (94) and spring (95), go up backup pad (91) and bottom suspension fagging (92) parallel arrangement each other, between backup pad (91) and bottom suspension fagging (92) are arranged in to cushion rubber pad (93), guide arm (94) pass backup pad (91) and with bottom suspension fagging (92) fixed connection, spring (95) cover is established on guide arm (94), and the upper and lower both ends of spring (95) are contradicted respectively on last backup pad (91) and bottom suspension fagging (92).

2. A shock absorbing telescopic cross-shaft universal joint according to claim 1, wherein: the limiting pin (6) comprises a rectangular rod part (61) and screw rod parts (62), and the two screw rod parts (62) are fixedly connected to two end faces of the rectangular rod part (61).

3. A shock absorbing telescopic cross-shaft universal joint according to claim 2, wherein: spacing groove (23) are the rectangular channel structure, and rectangular rod portion (61) card is established in spacing groove (23), and nut (7) threaded connection is on screw rod portion (62).

4. A shock absorbing telescopic cross-shaft universal joint according to claim 2, wherein: the sliding block (4) is provided with a rectangular hole (41), and the rectangular rod part (61) is inserted in the rectangular hole (41).

5. A shock absorbing telescopic cross-shaft universal joint according to claim 1, wherein: support seat (8) are established bearing frame (82), spacing end cover (83), retaining ring (84) and bearing (85) on axle sleeve (2) including the cover, be equipped with location step face (20) on axle sleeve (2), the inner circle of bearing (85) is contradicted on location step face (20), spacing end cover (83) and bearing frame (82) fixed connection, the arch on spacing end cover (83) internal face is contradicted on the outer lane of bearing (85), retaining ring (84) carry out axial spacing to spacing end cover (83), bearing frame (82) are fixed on last backup pad (91), are equipped with oil filler point (821) on bearing frame (82).

6. A shock absorbing telescoping cross-member universal joint as claimed in claim 5, wherein: and a sealing plug (822) is connected to the oil filling hole (821) in a threaded manner.