CN217152717U - Coupler for reducing impact force - Google Patents

Abstract

The utility model relates to a shaft coupling field, concretely relates to shaft coupling of slowing down impact force, including the flexible lock cylinder that is used for cooperation absorbing, the second shock pad and is used for cooperation locking at high speed, cooperation locked groove and be used for connecting the first sleeve of outside axis body, the second sleeve, first sleeve power end is connected with first cooperation seat, second sleeve power end is connected with second cooperation seat, install the cooperation through the center seat between first cooperation seat, the second cooperation seat, all cooperate through lock tooth and locked groove between first sleeve and the first cooperation seat, between second sleeve and the second cooperation seat, install first shock pad between the lock tooth and the locked groove of first sleeve and first cooperation seat, install the second shock pad between the lock tooth and the locked groove of second sleeve and second cooperation seat; two expansion seats are arranged in the center seat, and the technical problems that starting and sudden stop shake occurs during shaft-to-shaft transmission and stable kinetic energy transmission cannot be guaranteed during high-speed transmission are solved.

Description

Coupler for reducing impact force

Technical Field

The utility model relates to a shaft coupling field, concretely relates to shaft coupling that slows down impact force.

Background

The coupling is a device which connects two shafts or a shaft and a rotating part, rotates together in the process of transmitting motion and power and does not separate under normal conditions; sometimes also as a safety device to prevent the coupled machine parts from bearing excessive load, and to protect them from overload.

The utility model discloses a chinese utility model patent of application number 202123394611.3 discloses a shaft coupling that slows down impact force, including two axle sleeves, the one end of axle sleeve is equipped with the spliced eye, and the other end of axle sleeve is equipped with the perforation, perforation and spliced eye intercommunication, fenestrate circumference inner wall is equipped with the draw-in groove, and the joint has shock pad and chuck in the draw-in groove, and the one end of shock pad is equipped with a plurality of breachs, a plurality of lugs of circumference outer wall fixedly connected with of chuck, lug and breach joint, two fixedly connected with main shaft between the chuck, the fixed cover of outer wall of main shaft are equipped with the fixed disk, a plurality of shock attenuation boards of circumference outer wall fixedly connected with of fixed disk, when taking place the starting and when stopping, can't in time deal with the impact force of relative direction, and when high-speed rotation, if still adopt the flexible coupling, then can't guarantee kinetic energy transmission, lost most kinetic energy.

SUMMERY OF THE UTILITY MODEL

The utility model provides a shaft coupling of impact force slows down to solve the shake that takes place starting and scram when axle and shaft drive and can't guarantee the technical problem that kinetic energy steady state was carried when high-speed transmission.

The utility model discloses a shaft coupling that slows down impact force adopts following technical scheme: the damping device comprises a first damping pad and a second damping pad which are used for damping in a matched mode, a telescopic lock column and a matched lock groove which are used for locking in a matched mode at a high speed, and a first sleeve and a second sleeve which are used for connecting an external shaft body, wherein a power end of the first sleeve is connected with a first matched seat, a power end of the second sleeve is connected with a second matched seat, the first matched seat and the second matched seat are matched through a center seat in an installation mode, the first sleeve and the first matched seat and the second sleeve and the second matched seat are matched through lock teeth and lock grooves, the first damping pad is installed between the lock teeth and the lock grooves of the first sleeve and the first matched seat, and the second damping pad is installed between the lock teeth and the lock grooves of the second sleeve and the second matched seat; center seat internally mounted has two expansion seats, just expansion seat subtend installation, the equal shaping of expansion seat subtend inboard has the bell jar, flexible lock post is all installed to the reverse terminal surface of expansion seat, install two centrifugation kickballs between the expansion seat, the expansion seat corresponds axle center position and installs traction spring.

Furthermore, flexible lock post sliding connection be in first cooperation seat with on the second cooperation seat, first sleeve the second sleeve corresponds flexible lock post side all shaping has the cooperation locked groove.

Furthermore, the expansion seat is located four reset springs are evenly installed on the side face of the telescopic lock cylinder, and the inner side face of the first matching seat corresponds to the inner side face of the second matching seat.

Furthermore, the telescopic lock cylinder is located on one side edge of the matched lock groove and is processed by a round angle, and the cross section of the telescopic lock cylinder is regular dodecagon.

Furthermore, the telescopic lock cylinder and the expansion seat are integrally formed, and the expansion seat is connected with the traction spring and the reset spring through screws.

Further, the first shock pad is connected with the first matching seat through gluing, and the second shock pad is connected with the second matching seat through gluing.

The utility model has the advantages that: utilize first shock pad between first sleeve, the first cooperation seat to slow down the vibrations when starting, utilize the second shock pad between second sleeve, the second cooperation seat to slow down the vibrations when scramming, and when high-speed rotatory, utilize the expansion seat and the flexible lock post that stretch out to lock first sleeve, second sleeve to rigid fit when guaranteeing high-speed transmission guarantees the kinetic energy transmission.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the description below are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive labor.

Fig. 1 is a schematic view of an external structure of a coupler for reducing impact force according to the present invention;

fig. 2 is a schematic view of the structure of the telescopic lock cylinder of the coupler for reducing impact force of the present invention;

fig. 3 is a schematic view of the structure of the fit locking groove of the coupler for reducing the impact force of the present invention;

fig. 4 is a schematic view of the expanding seat of the impact-reducing coupling of the present invention;

fig. 5 is a schematic view of the expanding structure of the impact-reducing coupling of the present invention;

fig. 6 is a schematic view of a centrifugal top ball combination structure of the impact force-reducing coupling of the present invention;

fig. 7 is a schematic view of the centrifugal top ball expanding structure of the coupler for reducing impact force of the present invention.

The reference numbers are recorded as follows: 1. a first sleeve; 2. a second sleeve; 3. a first mating seat; 4. a second mating seat; 5. a first cushion pad; 6. a second cushion pad; 7. a center seat; 8. a telescopic lock cylinder; 9. matching the locking groove; 10. an expansion seat; 11. a return spring; 12. centrifuging and ejecting the ball; 13. a traction spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The embodiment of the utility model relates to a coupler for reducing impact force, as shown in figures 1 to 7, comprising a first shock pad 5 and a second shock pad 6 for matching shock absorption, a telescopic lock post 8 for matching locking at high speed, a matching lock groove 9, a first sleeve 1 and a second sleeve 2 for connecting external axes, wherein the power end of the first sleeve 1 is connected with a first matching seat 3, the power end of the second sleeve 2 is connected with a second matching seat 4, the first matching seat 3 and the second matching seat 4 are matched and installed through a center seat 7, the first sleeve 1 and the first matching seat 3 and the second sleeve 2 and the second matching seat 4 are matched and installed through lock teeth and lock grooves, the first shock pad 5 is installed between the lock teeth and lock grooves of the first sleeve 1 and the first matching seat 3 for buffering forward impact, the second shock pad 6 is installed between the lock teeth and lock grooves of the second sleeve 2 and the second matching seat 4, buffering reverse impact; two expansion seats 10 are arranged inside the center seat 7, the expansion seats 10 are installed in opposite directions, tapered grooves are formed in opposite inner sides of the expansion seats 10, telescopic lock columns 8 are installed on opposite end faces of the expansion seats 10, two centrifugal top balls 12 are installed between the expansion seats 10, and traction springs 13 are installed on the expansion seats 10 corresponding to the axis positions.

Flexible column locking 8 sliding connection is on first cooperation seat 3 and second cooperation seat 4, first sleeve 1, the equal shaping in second sleeve 2 corresponding flexible column locking 8 side has the cooperation locked groove 9, utilize the centrifugation of centrifugation knob 12 to throw away, thereby will expand seat 10 to both sides expansion, with flexible column locking 8 from inside release back cooperation first sleeve 1, the cooperation locked groove 9 on the second sleeve 2, thereby produce corresponding locking when making high-speed rotation, stability when guaranteeing high-speed rotation.

The expansion seat 10 is located four reset springs 11 are evenly installed on the side face of the telescopic lock cylinder 8, and the inner side face of the first matching seat 3 corresponds to the inner side face of the second matching seat 4. the reset springs 11 are provided with accommodating grooves.

The side edge of the telescopic lock column 8, which is positioned on one side of the matched lock groove 9, is processed by a fillet, and the cross section of the telescopic lock column 8 is in a regular dodecagon shape.

The telescopic lock column 8 and the expansion seat 10 are integrally formed, and the expansion seat 10 is connected with a traction spring 13 and a return spring 11 through screws.

The first cushion 5 is connected with the first matching seat 3 through gluing, and the second cushion 6 is connected with the second matching seat 4 through gluing.

As shown in fig. 1, a motor shaft and an output shaft are separately connected in slotted holes of a first sleeve 1 and a second sleeve 2, and then are fixed by screws, as shown in fig. 2, 4 and 6, when an electric appliance starts, because the rotating speed is slow and a reactive torque exists at a driven end, after the positive torque is transmitted to the first sleeve 1, the positive torque is subjected to the torque force of a first matching seat 3 with the reverse torque, and at the moment, a first shock pad 5 between a locking tooth and a locking groove on the first sleeve 1 and the first matching seat 3 performs shock absorption and buffering on the starting, so that the rigid impact is avoided;

after the motor drives the whole equipment to be in speed, in order to avoid shaking caused by the difference of the rotating speed of the soft connection of the first shock pad 5 and the second shock pad 6 in the initial starting stage, if the centrifugal top ball 12 in the central seat 7 in fig. 5 is subjected to high-speed centrifugal force and expands towards two sides, and if the expansion is changed from fig. 5 to fig. 7, the other expansion seat 10 is squeezed open, so that the expansion seat 10 overcomes the potential energy of the return spring 11 and the traction spring 13 and expands towards two sides, and when the expansion seat 10 expands, the telescopic locking columns 8 are driven to extend out of the first matching seat 3 and the first shock pad 5, and because shaking caused by the difference of the rotating speed of the soft connection of the first shock pad 5 and the second shock pad 6 exists in the initial rotating stage, the two telescopic locking columns 8 are respectively clamped in the matching locking grooves 9 on the first sleeve 1 and the first matching seat 3, and after the telescopic locking columns 8 are clamped in the matching locking grooves 9, rigid matching is adopted between the first sleeve 1 and the first matching seat 3 and between the second sleeve 2 and the second matching seat 4, so that no shaking is generated at the moment, and the stability of high-speed rotation is ensured;

and when needing to slow down, speed slows down gradually, centrifugal knob 12 loses centrifugal force gradually, then reset spring 11 and traction spring 13 drive two expansion seat 10 shrinkages, will centrifugal knob 12 extrude the inboard when the shrink, take flexible lock post 8 out from cooperation locked groove 9 simultaneously, between first sleeve 1 and first cooperation seat 3 this moment, cooperate through first shock pad 5 and second shock pad 6 between second sleeve 2 and the second cooperation seat 4, and when the motor is stopped, the impact force that positive and negative torsion produced takes place once more, and counter torsion is leading this moment, then second shock pad 6 between second sleeve 2 and the second cooperation seat 4 cushions the impact force that counter torsion produced this moment, improve device buffering effect.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (6)

1. A coupler for slowing down impact force is characterized in that: the damping device comprises a first damping pad (5) and a second damping pad (6) which are used for matching damping, a telescopic lock column (8) and a matching lock groove (9) which are used for matching locking at a high speed, and a first sleeve (1) and a second sleeve (2) which are used for connecting an external shaft body, wherein the power end of the first sleeve (1) is connected with a first matching seat (3), the power end of the second sleeve (2) is connected with a second matching seat (4), the first matching seat (3) and the second matching seat (4) are matched through a center seat (7), the first sleeve (1) and the first matching seat (3) as well as the second sleeve (2) and the second matching seat (4) are matched through a lock tooth and a lock groove, the first damping pad (5) is arranged between the lock tooth and the lock groove of the first matching seat (3) and the first sleeve (1), a second shock absorption pad (6) is arranged between the locking teeth and the locking grooves of the second sleeve (2) and the second matching seat (4); center seat (7) internally mounted has two expansion seats (10), just expansion seat (10) subtend installation, expansion seat (10) subtend inboard all shaping has the bell jar, flexible lock post (8) are all installed to expansion seat (10) reverse terminal surface, install two centrifugation kickballs (12) between expansion seat (10), expansion seat (10) correspond the axle center position and install traction spring (13).

2. The impact force attenuating coupling of claim 1, wherein: telescopic lock post (8) sliding connection be in first cooperation seat (3) with on second cooperation seat (4), first sleeve (1) second sleeve (2) correspond telescopic lock post (8) side all takes shape to have cooperation locked groove (9).

3. The impact force attenuating coupling of claim 2, wherein: the expansion seat (10) is located four reset springs (11) are evenly installed on the side face of the telescopic lock cylinder (8), the first matching seat (3) corresponds to the inner side face of the second matching seat (4), and the reset springs (11) are provided with accommodating grooves.

4. The impact force attenuating coupling of claim 2, wherein: the telescopic lock cylinder (8) is located on one side edge of the matched lock groove (9) and is processed through a fillet, and the cross section of the telescopic lock cylinder (8) is in a regular dodecagon shape.

5. The impact force attenuating coupling of claim 3, wherein: the telescopic lock cylinder (8) and the expansion seat (10) are integrally formed, and the expansion seat (10) is connected with the traction spring (13) and the reset spring (11) through screws.

6. The impact force attenuating coupling of claim 1, wherein: the first shock pad (5) is connected with the first matching seat (3) through gluing, and the second shock pad (6) is connected with the second matching seat (4) through gluing.

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