CN114060420B

CN114060420B - Coupler lubricating device

Info

Publication number: CN114060420B
Application number: CN202210025904.4A
Authority: CN
Inventors: 薛永东
Original assignee: Nantong Qizhong Lubrication Equipment Co ltd
Current assignee: Nantong Qizhong Lubrication Equipment Co ltd
Priority date: 2022-01-11
Filing date: 2022-01-11
Publication date: 2022-03-22
Anticipated expiration: 2042-01-11
Also published as: CN114060420A

Abstract

The invention relates to the technical field of couplings and discloses a lubricating device for a coupling, which comprises a driving shaft, a driving disc, a driven shaft and a driven disc, wherein a sleeve is sleeved on the outer side of the driven disc, a second limiting cylinder is fixedly connected to the inner wall of the sleeve and one side, close to the driving disc, of the sleeve, a third spring is fixedly connected to one side, close to the sleeve, of the inner wall of the second limiting cylinder, the other end of the third spring is fixedly connected with a piezoelectric block, and a central sliding block is arranged between the driving disc and the driven disc. The invention realizes the timely opening of the electromagnetic valve in the oil guide cylinder by adjusting the current of the electromagnet on the corresponding side in time according to the magnitude of the piezoelectric current, realizes the effect of automatic oil adding, realizes the timely opening of the oil outlet by matching the conducting plate, the conducting block and the first spring, achieves the timely oil filling of the offset area of the cross sliding block, and improves the torque transmission capacity in the transmission process. The loss of the central slider is reduced.

Description

Coupler lubricating device

Technical Field

The invention relates to the technical field of couplings, in particular to a lubricating device for a coupling.

Background

The coupler is a transmission device for transmitting torque between two shafts, and is divided into a flexible coupler and a rigid coupler, wherein the Oldham coupling is one of the flexible couplers which is widely used, has the advantages of compensating axial displacement of the two shafts, allowing larger radial and axial deviation between the two shafts, being convenient to install and the like, and is suitable for various complicated transmission places.

The prior coupler has the following technical defects when in use: firstly, in order to realize the stable work of the coupler, two convex tooth areas of the central sliding block are often required to be coated with lubricating oil, so that the friction loss is reduced, and the transmission effect is improved, but most of the existing oil filling devices are manually added, and the central area of the cross sliding block cannot be filled, so that the transmission effect is influenced; and secondly, the Oldham coupling is a flexible coupling, so that in the process of transmitting torque between two shafts, when torque transmission with large axial deviation is carried out for a long time, large torsion exists in the convex teeth of the central slider of the coupling, and once the torsion exceeds the maximum rigidity, the central slider is easily damaged and broken.

Disclosure of Invention

Aiming at the defects of the existing coupler lubricating device in the background technology in the using process, the invention provides the coupler lubricating device which has the advantages of automatic oil filling and intelligent oil flushing amount adjustment and solves the technical problems in the background technology.

The invention provides the following technical scheme: a coupler lubricating device comprises a driving shaft, a driving disc, a driven shaft and a driven disc, wherein a sleeve is sleeved on the outer side of the driven disc, a second limiting cylinder is fixedly connected to the inner wall of the sleeve and one side, close to the driving disc, of the inner wall of the second limiting cylinder, a third spring is fixedly connected to one side, close to the sleeve, of the inner wall of the second limiting cylinder, and the other end of the third spring is fixedly connected with a piezoelectric block;

a central sliding block is arranged between the driving disc and the driven disc, one side of the side wall of the driven disc close to the central sliding block is fixedly connected with a first limiting cylinder, an automatic oil filling mechanism is arranged inside the limiting cylinder, the automatic oil filling mechanism comprises an electromagnet fixedly connected to the bottom wall of the first limiting cylinder, and the bottom wall of the electromagnet is fixedly connected with a conducting strip;

the automatic oil filling mechanism also comprises a first spring which is connected in the first limiting cylinder in a sliding way, one end of the first spring and one side close to the central sliding block are fixedly connected with a limiting ball, the bottom wall of the limiting ball is fixedly connected with a conductive block, the inner side of the first limiting cylinder is fixedly connected with an oil guide cylinder fixedly connected with the side wall of the driven plate, the top wall of the oil guide cylinder is fixedly connected with an oil storage chamber, the top end of the oil guide cylinder penetrates through the inner wall of the oil storage chamber, an electromagnetic valve mechanism is arranged between the oil guide cylinder and the oil storage chamber, the diameter value of the limiting ball is smaller than the inner diameter value of the first limiting cylinder, the electromagnetic valve mechanism comprises a second spring fixedly connected with the side wall of the first limiting cylinder, the other end of the second spring is fixedly connected with a permanent magnet, the permanent magnet runs through to leading an oil section of thick bamboo, and sliding connection is at the top of leading an oil section of thick bamboo, first through-hole has been seted up on the right side of permanent magnet.

Preferably, the side walls of the vertically arranged convex teeth of the central slider are provided with second through holes, and the second through holes are formed at equal intervals along the convex teeth.

Preferably, the first through holes are distributed along the central first through hole in a circular array.

Preferably, the second limiting cylinders are arranged at equal intervals along the axis of the driving shaft.

Preferably, the diameter value of the limiting ball is smaller than the inner diameter value of the first limiting cylinder;

preferably, the first limiting cylinders are arranged at equal intervals along the circumferential direction of the driven disc, and the number value is consistent with that of the second limiting cylinders.

The invention has the following beneficial effects:

1. the invention drives the side wall of the driving shaft to contact and extrude with the piezoelectric block through the offset rotation of the driving shaft, records the axial displacement through the magnitude of the piezoelectric current, and simultaneously timely adjusts the current magnitude of the electromagnet on the corresponding side through the magnitude of the piezoelectric current so as to timely open the electromagnetic valve inside the oil guide cylinder, thereby realizing the effect of automatic oil filling and solving the problem of poor oil filling efficiency caused by manual oil filling in the prior art.

2. According to the invention, the automatic oil filling of the offset area of the crosshead shoe is realized by the contact of the convex teeth on the side wall of the central slipper block in the sliding process with the limiting ball in the transmission process of the crosshead shoe, and meanwhile, the oil outlet is timely opened by the matching arrangement of the conducting plate, the conducting block and the first spring, so that the timely oil filling of the offset area of the crosshead shoe is realized, and the torque transmission capability in the transmission process is improved. The loss of the central slider is reduced.

3. According to the invention, the number of the first through holes formed in the side wall of the permanent magnet is switched in the sliding process of the permanent magnet, so that the oil outlet amount is effectively controlled, and the oil outlet amount is large when the large axial offset is achieved; when less axial skew, less oil output, and then reach the even coating of lubricating oil to central slider, further improved transmission efficiency.

4. According to the invention, through the arrangement of the second through holes arranged on the convex teeth on the side wall of the central sliding block, the uniform filling of lubricating oil in the openings of the inner walls of the driven disc and the driving disc in the convex tooth transmission process of the central sliding block is realized, the torque transmission capability is further enhanced, and the problem of the fracture of the convex teeth of the central sliding block caused by long-term large axial deviation is reduced.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic cross-sectional view of the present invention;

FIG. 3 is an enlarged view of the structure at A in FIG. 2 according to the present invention;

FIG. 4 is a schematic view of the internal explosion structure of the present invention;

FIG. 5 is a schematic view of the internal structure of the driven plate according to the present invention;

FIG. 6 is a schematic view of the internal structure of the first position-limiting cylinder according to the present invention;

fig. 7 is a schematic structural diagram of the electromagnetic valve mechanism of the present invention.

In the figure: 1. a sleeve; 2. a drive shaft; 21. a driving disk; 3. a driven shaft; 31. a driven plate; 32. a limiting ball; 321. a conductive block; 33. a first limiting cylinder; 331. a first spring; 34. an electromagnet; 341. a conductive sheet; 35. an oil storage chamber; 36. an oil guide cylinder; 37. a second spring; 38. a permanent magnet; 39. a first through hole; 4. a second limiting cylinder; 5. a third spring; 6. a piezoelectric block; 7. a central slider; 71. a second via.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-7, a coupler lubricating device includes a driving shaft 2, a driving disk 21, a driven shaft 3, and a driven disk 31, wherein the outer side of the driving disk 21 is sleeved with a sleeve 1, a second limiting cylinder 4 is fixedly connected to the inner wall of the sleeve 1 and the side close to the driving disk 21, a third spring 5 is fixedly connected to the inner wall of the second limiting cylinder 4 and the side close to the sleeve 1, and a piezoelectric block 6 is fixedly connected to the other end of the third spring 5;

a central sliding block 7 is arranged between the driving disc 21 and the driven disc 31, a first limiting cylinder 33 is fixedly connected to one side, close to the central sliding block 7, of the side wall of the driving disc 21, and an automatic oil filling mechanism is arranged inside the first limiting cylinder 33. In the transmission process, when carrying out the transmission of axial skew, the lateral wall of driving shaft 2 and the piezoelectric block 6 extrusion contact of the inner wall of sleeve 1, and then produce piezoelectric current, along with the continuation rotation of driving shaft 2, driving shaft 2 and the piezoelectric block 6 switching formula work that sets up along sleeve 1 inner wall circumference, in the contact process of driving shaft 2 and piezoelectric block 6, produce piezoelectric current, piezoelectric current then has represented the axial transmission offset of driving shaft 2 this moment. The automatic oil filling mechanism on one side of the driven shaft 3 is controlled by recording the current, the side wall of the driving shaft 2 is driven to be in contact extrusion with the piezoelectric block 6 through the offset rotation of the driving shaft 2, the axial displacement is recorded through the magnitude of the piezoelectric current, and meanwhile, the current magnitude of the electromagnet 34 on the corresponding side is timely adjusted through the magnitude of the piezoelectric current so as to timely open the electromagnetic valve inside the oil guide cylinder 36, so that the automatic oil filling effect is realized, and the problem of poor oil filling efficiency caused by manual oil filling in the prior art is solved.

The automatic oil filling mechanism comprises an electromagnet 34 fixedly connected to the bottom wall of the first limiting cylinder 33, and a conducting strip 341 is fixedly connected to the bottom wall of the electromagnet 34;

automatic oil filling mechanism still includes the inside first spring 331 of sliding connection at first spacing section of thick bamboo 33, the one end of first spring 331 and be close to the spacing ball 32 of center slider 7 one side fixedly connected with, the electrically conductive piece 321 of end jade fixedly connected with of spacing ball 32, inboard and the fixed connection of first spacing section of thick bamboo 33 lead oil section of thick bamboo 36 at the lateral wall fixedly connected with of driven plate 31, the fixedly connected with oil storage chamber 35 of the roof of leading oil section of thick bamboo 36, the top of leading oil section of thick bamboo 36 runs through to the inner wall of oil storage chamber 35, it is equipped with solenoid valve mechanism to lead between oil section of thick bamboo 36 and the oil storage chamber 35, the diameter value of spacing ball 32 is less than the internal diameter value of first spacing section of thick bamboo 33. When the piezoelectric current is larger, the corresponding axial offset is larger, and the convex teeth of the central slider 7 are extruded with the limiting ball 32 to drive the first spring 331 to compress, thereby driving the conductive block 321 to move along the interior of the first limiting cylinder 33, and along with the compression of the first spring 331, the conductive block 321 contacts and is electrified with the conductive sheet 341, the generated current acts on the electromagnet 34, the permanent magnet 38 is attracted under the action of magnetic force, so that the second spring 37 is compressed, the first through hole 39 of the permanent magnet 38 runs into the oil guide cylinder 36, the opening number of the first through hole 39 is changed through the sliding distance of the permanent magnet 38, thereby realizing the opening and oil filling of the electromagnetic valve, the current flowing through the permanent magnet 38 keeps synchronous with the piezoelectric current, namely, when the piezoelectric current is larger (larger axial offset), the opening degree of the electromagnetic valve is larger (the first through hole 39 slides to the number of the oil guide cylinder 36); when the piezoelectric current is small (small axial deflection), the opening degree of the electromagnetic valve is small (the first through hole 39 slides to the number of the oil guide cylinders 36), so that automatic oil filling of the convex tooth area of the central slider coupling is realized according to the axial deflection, and the oil filling amount and the deflection amount are kept synchronous.

Solenoid valve mechanism includes second spring 37 of fixed connection at first spacing section of thick bamboo 33 lateral wall, and second spring 37's the other end fixedly connected with permanent magnet 38, and permanent magnet 38 runs through to leading oil section of thick bamboo 36, and sliding connection is at the top of leading oil section of thick bamboo 36, and first through-hole 39 has been seted up on permanent magnet 38's right side. The contact with the limiting ball 32 in the sliding process of the convex teeth on the side wall of the central slider 7 in the transmission process of the cross coupling is used for automatically filling oil to the offset area of the cross slider, and meanwhile, the oil outlet is timely opened through the matching arrangement among the conducting strip 341, the conducting block 321 and the first spring 331, so that the timely oil filling to the offset area of the cross slider 7 is realized, and the torque transmission capacity in the transmission process is improved. The losses of the central slider 7 are reduced.

The second through holes 71 are formed in the side walls of the vertically arranged convex teeth of the central slider 7, and the second through holes 71 are formed at equal intervals along the convex teeth. The arrangement of the second through holes 71 formed in the side walls of the convex teeth of the central slider 7 can improve the oil storage effect of the contact area of the central slider 7 with the driving disk 21 and the driven disk 31, and the lubricating oil in the middle area of the convex teeth of the central slider 7 cannot slide out of the driving disk 21 and the driven disk 31, so that the lubricating oil in the second through holes 71 can be effectively recycled, and the lubricating effect is effectively improved.

The first through holes 39 are distributed in a circular array along the central first through hole 39. The opening degree is ensured to be gradually increased along with the sliding of the permanent magnet 38 in the process of opening the electromagnetic valve.

The second limiting cylinders 4 are arranged at equal intervals along the axis of the driving shaft 2.

The diameter value of the limiting ball 32 is smaller than the inner diameter value of the first limiting cylinder 33, so that the first spring 331 can be squeezed when the limiting ball 32 moves along the inside of the first limiting cylinder 33.

The first limiting cylinders 33 are arranged at equal intervals along the circumferential direction of the driven disc 31, and the number value is consistent with that of the second limiting cylinders 4. 12 groups are arranged along the central shaft, so that the accuracy of transmission oil filling can be enhanced, and the extrusion of each side piezoelectric block 6 can be accurately transmitted to the corresponding electromagnetic valve.

The use method (working principle) of the invention is as follows:

at the beginning, the two shafts to be transmitted are fixed at the tail ends of a driving shaft 2 and a driven shaft 3 of the coupler, in the transmission process, when the axial deviation is transmitted, the side wall of the driving shaft 2 is in extrusion contact with a piezoelectric block 6 on the inner wall of a sleeve 1, piezoelectric current is generated, along with the continuous rotation of the driving shaft 2, the driving shaft 2 works in a switching mode with the piezoelectric block 6 circumferentially arranged on the inner wall of the sleeve 1, in the contact process of the driving shaft 2 and the piezoelectric block 6, the piezoelectric current is generated, and the axial transmission deviation of the driving shaft 2 is represented by the piezoelectric current at the moment. And then the current is recorded to control the automatic oil filling mechanism on the driven shaft 3 side.

When the piezoelectric current is larger, the corresponding axial offset is larger, and the convex teeth of the central slider 7 are extruded with the limiting ball 32 to drive the first spring 331 to compress, thereby driving the conductive block 321 to move along the interior of the first limiting cylinder 33, and along with the compression of the first spring 331, the conductive block 321 contacts and is electrified with the conductive sheet 341, the generated current acts on the electromagnet 34, the permanent magnet 38 is attracted under the action of magnetic force, so that the second spring 37 is compressed, the first through hole 39 of the permanent magnet 38 runs into the oil guide cylinder 36, the opening number of the first through hole 39 is changed through the sliding distance of the permanent magnet 38, thereby realizing the opening and oil filling of the electromagnetic valve, the current flowing through the permanent magnet 38 keeps synchronous with the piezoelectric current, namely, when the piezoelectric current is larger (larger axial offset), the opening degree of the electromagnetic valve is larger (the first through hole 39 slides to the number of the oil guide cylinder 36); when the piezoelectric current is small (small axial deflection), the opening degree of the electromagnetic valve is small (the first through hole 39 slides to the oil guide barrel 36), so that automatic oil filling of the convex tooth area of the Oldham coupling is realized according to the axial deflection, and the oil filling amount and the deflection are kept synchronous.

The arrangement of the second through holes 71 formed in the side walls of the convex teeth of the central slider 7 can improve the oil storage effect of the contact area of the central slider 7 with the driving disk 21 and the driven disk 31, and the lubricating oil in the middle area of the convex teeth of the central slider 7 cannot slide out of the driving disk 21 and the driven disk 31, so that the lubricating oil in the second through holes 71 can be effectively recycled, and the lubricating effect is effectively improved.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a shaft coupling lubricating arrangement, includes driving shaft (2), driving disk (21), driven shaft (3), driven disk (31), its characterized in that: a sleeve (1) is sleeved on the outer side of the driving disc (21), a second limiting cylinder (4) is fixedly connected to the inner wall of the sleeve (1) and one side, close to the driving disc (21), of the inner wall of the second limiting cylinder (4), a third spring (5) is fixedly connected to one side, close to the sleeve (1), of the inner wall of the second limiting cylinder, and a piezoelectric block (6) is fixedly connected to the other end of the third spring (5);

a central sliding block (7) is arranged between the driving disc (21) and the driven disc (31), one side, close to the central sliding block (7), of the side wall of the driven disc (31) is fixedly connected with a first limiting cylinder (33), an automatic oil filling mechanism is arranged inside the first limiting cylinder (33), the automatic oil filling mechanism comprises an electromagnet (34) fixedly connected to the bottom wall of the first limiting cylinder (33), and a conducting plate (341) is fixedly connected to the bottom wall of the electromagnet (34); the automatic oil filling mechanism further comprises a first spring (331) which is connected to the inside of the first limiting barrel (33) in a sliding manner, one end of the first spring (331) is close to the limiting ball (32) fixedly connected to one side of the central sliding block (7), the bottom wall of the limiting ball (32) is fixedly connected with a conductive block (321), the inner side of the first limiting barrel (33) is fixedly connected to the side wall of the driven disc (31) to form an oil guide barrel (36), the top wall of the oil guide barrel (36) is fixedly connected with an oil storage chamber (35), the top end of the oil guide barrel (36) penetrates through the inner wall of the oil storage chamber (35), an electromagnetic valve mechanism is arranged between the oil guide barrel (36) and the oil storage chamber (35), the diameter value of the limiting ball (32) is smaller than the inner diameter value of the first limiting barrel (33), and the electromagnetic valve mechanism comprises a second spring (37) which is fixedly connected to the side wall of the first limiting barrel (33), the other end fixedly connected with permanent magnet (38) of second spring (37), permanent magnet (38) run through to lead oil cylinder (36), and sliding connection is at the top of leading oil cylinder (36), first through-hole (39) have been seted up on the right side of permanent magnet (38).

2. A coupling lubrication device as claimed in claim 1, wherein: second through holes (71) are formed in the side wall of the vertically arranged convex teeth of the central sliding block (7), and the second through holes (71) are formed at equal intervals along the convex teeth.

3. A coupling lubrication device as claimed in claim 1, wherein: the first through holes (39) are distributed along the central first through hole (39) in a circular array.

4. A coupling lubrication device as claimed in claim 1, wherein: the first limiting cylinders (33) are arranged at equal intervals along the circumferential direction of the driven disc (31), and the number value is consistent with that of the second limiting cylinders (4).