CN111924461A - Synchronous double-eccentric-shaft vibration excitation device and thin oil lubrication method - Google Patents

Abstract

The invention relates to the technical field of vibration excitation devices, in particular to a synchronous double eccentric shaft vibration excitation device and a thin oil lubrication method. The device includes a base, an eccentric shaft, a first oil tank, a second oil tank, a synchronizing gear, and an oil slinger. The first oil tank and the second oil tank are respectively arranged at both ends of the eccentric shaft. The first oil tank is provided with a synchronizing gear, and the synchronizing gear The lubricating oil in the first oil tank is splashed to lubricate the bearing; the second oil tank is provided with an oil slinger, and the oil slinger makes the lubricating oil in the second oil tank splash to lubricate the bearing. The eccentric part of the eccentric shaft is located outside the oil tank, the rotation of the eccentric part is unobstructed, and the work loss is low; compared with a single large oil tank, the use of two small oil tanks can realize a small amount of lubricating oil to ensure sufficient lubrication effect, and can achieve better lubrication. Sealed design to avoid leakage. Synchronous gear and oil throwing plate, combined with the design of the oil circuit, can realize the oil circuit circulation in the oil tank without external power, and fully lubricate.

Description

A synchronous double eccentric shaft vibration excitation device and thin oil lubrication method

technical field

The invention relates to the technical field of vibration excitation devices, in particular to a synchronous double eccentric shaft vibration excitation device and a thin oil lubrication method.

Background technique

With the rapid development of the existing industrial level, a large number of feeders are used in the external transportation of mining, metallurgy, chemical industry and other industries. The existing feeders generally use shock exciters to vibrate the materials to run. It rotates at high speed, so the bearings need to be well lubricated.

The Chinese patent with the authorization announcement number of CN 201567049U discloses an externally driven biaxial vibrator, comprising a biaxial vibrator, characterized in that: two eccentric shafts are installed in parallel in a housing, and the same ends of the two eccentric shafts are respectively installed with A transmission gear that meshes with each other is provided with thin oil in contact with the lower part of the gear in the casing, and the casing is provided with oil passages that communicate with the bearings and the gears. The existing double eccentric shaft vibration excitation device uses thin oil for lubrication, which is significantly improved compared with paste lubricating oil. The sealing effect is higher, and the problem of lubricating oil leakage is prone to occur; the eccentric part of the eccentric shaft is in the oil tank, and when the eccentric shaft rotates, the lubricating oil forms resistance to the eccentric part, thus increasing the energy loss of equipment operation.

SUMMARY OF THE INVENTION

In order to overcome the deficiencies in the prior art, the present invention provides a synchronous double eccentric shaft vibration excitation device with good lubrication effect and small energy loss.

In order to achieve the above object, the technical scheme adopted in the present invention is as follows: a synchronous double eccentric shaft vibration excitation device, comprising a base and an eccentric shaft, the position of the middle section of the eccentric shaft is an eccentric part, and the positions of both ends of the eccentric shaft are set at the eccentric shaft through bearings. The base is characterized in that: it also includes a first oil tank, a second oil tank, a synchronizing gear, and an oil thrower, the eccentric shaft includes a driving shaft and a driven shaft, and the first oil tank and the second oil tank are respectively arranged in the eccentric Both ends of the shaft, and the end of the eccentric shaft and the bearing of the corresponding end are sealed inside, the first oil tank and the second oil tank are respectively provided with lubricating oil, and the driving shaft and the driven shaft located in the first oil tank are respectively sleeved There are synchronizing gears that mesh with each other, and the rotation of the synchronizing gear makes the lubricating oil in the first oil tank splash to lubricate the bearings located in the first oil tank; the driving shaft or/and the driven shaft located in the second oil tank are provided with rotating together The oil slinger is rotated to make the lubricating oil in the second oil tank splash to lubricate the bearings located in the second oil tank.

Further, it also includes a bearing seat and a bearing gland, the bearing seat is installed on the base and is sealedly connected with the base, the bearing is installed in the bearing seat, the first oil tank includes a first cover, the first oil tank A cover is installed on one side of the base and covers the corresponding bearing seat on the inside. The first cover is sealed with the base. The second oil tank includes a second cover. The second cover The body cover is arranged on one side of the base and the bearing seat corresponding to this side is covered inside, the second cover body and the base are sealed and connected, and the bearing seat is open towards the inner side of the first cover body or the second cover The other side is provided with a bearing gland for sealing.

Further, it also includes a shaft sleeve, the shaft sleeve is arranged outside the eccentric shaft and corresponding to the inner side of the bearing gland, the outer side of the shaft sleeve is provided with a first oil groove with an opening facing outward and arranged around the axis, and the bearing seat is provided with a first oil groove. Running through the first oil passages on both sides, there are second oil passages in the bearing gland, several first oil passages, several second oil passages, and each first oil passage is distributed in the At different heights, one end of the second oil passage is connected to the first oil passage, and the other end is connected to the first oil groove, and the corresponding first and second passages are matched with the first oil groove to form the lubricating oil from the high position. A circulating oil passage into which the first oil passage passage enters and discharges from the first oil passage passage in the low position.

Further, an oil guide groove is provided on the side of the bearing gland facing the bearing seat, and the oil guide groove corresponds to a first oil channel and is connected to the inner side of the bearing seat, so that the lubricating oil enters the inner side of the bearing seat from the first oil channel channel. And through the lubricating oil channel discharged from the other side after the bearing.

Further, the inner side surface of the bearing gland is provided with a second oil groove with an opening facing inward and arranged around the axis, and the first oil groove and the second oil groove are dislocated to form a labyrinth seal structure.

Further, a sealing ring is provided outside the shaft sleeve, and the sealing ring acts between the bearing gland and the shaft sleeve.

Further, an inclined surface facing the bearing direction is provided at the open end of the bearing seat, and the inclined surface is used to guide the lubricating oil to gather toward the bearing direction.

Further, the first fuel tank and the second fuel tank are respectively provided with independently provided fuel filler ports, fuel level mirrors and fuel drain ports.

Further, it also includes a closing cover, the closing cover is installed on the base and located between the first oil tank and the second oil tank, and the closing cover encloses the eccentric part of the eccentric shaft inside.

A thin oil lubrication method for a synchronous double eccentric shaft vibration excitation device, characterized in that: based on the synchronous double eccentric shaft vibration excitation device described in any one of the above,

The driving shaft rotates and drives the driven shaft to rotate together through the synchronizing gear; in the first oil tank, the synchronizing gear rotates and splashes the lubricating oil; in the second oil tank, the lubricating oil splashes when the oil slinger rotates;

The splashed lubricating oil enters from the relatively high first oil channel on the bearing seat, and reaches the first oil tank along the corresponding second oil channel, and then is sent out from the second oil channel below. It is discharged from the first oil channel with a relatively low relative horizontal position on the bearing seat to form a circulating oil circuit, which plays the role of lubrication, cooling and slag discharge;

The splashed lubricating oil enters from the first oil passage, and enters the bearing seat through the corresponding oil guide groove. The lubricating oil passes through the bearing from one side of the bearing and is discharged from the other side to form a lubricating oil passage for lubrication and slag discharge. effect.

It can be seen from the above description of the present invention that, compared with the prior art, the present invention provides a synchronous double eccentric shaft vibration excitation device and a thin oil lubrication method, by setting two oil tanks to lubricate the bearing positions at both ends of the eccentric shaft respectively, The eccentric part of the eccentric shaft is located outside the oil tank, the rotation of the eccentric part is unobstructed, and the work loss is low; compared with a single large oil tank, the use of two small oil tanks can achieve a small amount of lubricating oil to ensure sufficient lubrication effect, and can achieve better The unique sealing design avoids leakage; the rotation of the eccentric shaft drives the synchronous gear and the oil slinger to rotate, and with the design of the upper oil circuit, the oil circuit in the oil tank can be circulated without external power, and full lubrication can be achieved.

Description of drawings

FIG. 1 is a cross-sectional view of a synchronous double eccentric shaft vibration excitation device according to the present invention.

FIG. 2 is a partial enlarged schematic diagram of FIG. 1 in the present invention.

FIG. 3 is a partial cross-sectional view of the present invention at the same position as FIG. 2 at different cross-sectional angles.

FIG. 4 is a schematic diagram of the external structure of a synchronous double eccentric shaft vibration excitation device according to the present invention.

The corresponding symbols in the figure are as follows: 1. Base, 11. Closure, 2. Eccentric shaft, 21. Eccentric portion, 22. Bearing, 2a. Drive shaft, 2b. Driven shaft, 3. First oil tank, 31. Section 1. Cover body, 4. Second oil tank, 41. Second cover body, 5. Synchronous gear, 6. Oil thrower, 7. Bearing seat, 71. First oil passage, 72. Inclined surface, 8. Bearing pressure Cover, 81. Second oil channel, 82. Oil guide groove, 83. Second oil groove, 9. Shaft sleeve, 91. First oil groove, 92. Seal ring.

Detailed ways

The present invention will be further described below through specific embodiments.

1 to 4, a synchronous double eccentric shaft vibration excitation device includes a base 1, an eccentric shaft 2, a first oil tank 3, a second oil tank 4, a synchronous gear 5, an oil throwing plate 6, and a bearing seat 7. , Bearing gland 8, shaft sleeve 9.

The position of the middle section of the eccentric shaft 2 is the eccentric part 21, and the two ends of the eccentric shaft 2 are arranged on the base 1 through the bearings 22. The eccentric shaft 2 includes a driving shaft 2a and a driven shaft 2b. The first oil tank 3 and the second oil tank 4 are respectively It is arranged at both ends of the eccentric shaft 2, and the end of the eccentric shaft 2 and the bearing 22 at the corresponding end are sealed inside. The first oil tank 3 and the second oil tank 4 are respectively provided with lubricating oil, and the driving shaft located in the first oil tank 3 2a and the driven shaft 2b are respectively sleeved with a synchronizing gear 5 that meshes with each other. The rotation of the synchronizing gear 5 makes the lubricating oil in the first oil tank 3 splash to lubricate the bearing 22 located in the first oil tank 3; The driving shaft 2a or/and the driven shaft 2b in the oil tank 4 are provided with an oil slinger 6 that rotates together, and the rotation of the oil slinger 6 makes the lubricating oil in the second oil tank 4 splash against the bearing 22 located in the second oil tank 4 Lubricate.

The bearing seat 7 is installed on the base 1 and is sealedly connected with the base 1 , the bearing 22 is installed in the bearing seat 7 , the first oil tank 3 includes a first cover 31 , and the first cover 31 is covered on the first part of the base 1 . The first cover body 31 is sealed with the base 1 and the second oil tank 4 includes a second cover body 41 , and the second cover body 41 is covered on the base 1 . One side and the bearing seat 7 corresponding to this side is covered inside, the second cover body 41 and the base 1 are sealedly connected, and the bearing seat 7 is open towards the first cover body 31 or the inner side of the second cover body 32 The other side is provided with a bearing gland 8 for sealing. The shaft sleeve 9 is arranged outside the eccentric shaft 2 and is correspondingly located inside the bearing press cover 8. The outer surface of the shaft sleeve 9 is provided with a first oil groove 91 which opens outward and is arranged around the axis. The oil passage 71, the bearing gland 8 is provided with a second oil passage 81, the first oil passage 71 is provided with several, and the second oil passage 81 is provided with several, and the first oil passages 71 are distributed in the At different heights, one end of the second oil passage 81 is connected to the first oil passage 71, and the other end is connected to the first oil groove 91. The corresponding first passage 71 and the second passage 81 cooperate with the first oil groove 91 to form lubrication A circulating oil passage in which oil enters from the high position first oil passage passage 71 and is discharged from the low position first oil passage passage 81 . A side of the bearing gland 8 facing the bearing seat 7 is provided with an oil guide groove 82. The oil guide groove 82 corresponds to a first oil passage 71 and is connected to the inner side of the bearing seat 7, so that the lubricating oil enters the bearing from the first oil passage 71. One side of the seat 7 passes through the bearing 22 and is discharged from the other side of the lubricating oil passage. The inner side surface of the bearing gland 8 is provided with a second oil groove 83 with an opening facing inward and arranged around the axis. The first oil groove 91 and the second oil groove 83 are dislocated to form a labyrinth seal structure. A sealing ring 92 is also provided outside the shaft sleeve 9 , and the sealing ring 92 acts between the bearing gland 8 and the shaft sleeve 9 . The open end of the bearing seat 7 is provided with an inclined surface 72 facing the direction of the bearing 22 , and the inclined surface 72 is used to guide the lubricating oil to gather toward the direction of the bearing 22 to ensure that the bearing always has a good lubricating effect. The first fuel tank 3 and the second fuel tank 4 are respectively provided with independently provided fuel filler ports, fuel level mirrors and fuel drain ports.

The base 1 is provided with a sealing cover 11 . The sealing cover 11 is installed on the base 1 and is located between the first oil tank 3 and the second oil tank 4 , and the sealing cover 11 seals the eccentric portion 21 of the eccentric shaft 2 inside.

The working principle of the synchronous double eccentric shaft vibration excitation device is as follows:

The bearings 22 installed at both ends of the eccentric shaft 2 are respectively located in the first oil tank 3 and the second oil tank 4 for lubrication, and the eccentric part 21 in the middle of the eccentric shaft 2 is located outside the oil tank. Therefore, during the rotation of the eccentric shaft 2, the eccentric part 21 is not lubricated. The oil is in contact, and the rotation is unobstructed, which reduces the energy consumption of the equipment.

The driving shaft 2a of the eccentric shaft 2 is driven by an external drive motor to rotate, and the driving shaft 2a and the driven shaft 2b are connected by a synchronous gear 5, so the driving shaft 2a and the driven shaft 2b rotate synchronously;

In the first oil tank 3 , the synchronous gear 5 will splash the lubricating oil in the first oil tank 3 while rotating, and the lubricating oil will lubricate the synchronous gear 5 , and the splashed lubricating oil will also splash the lubricating oil in the first oil tank 3 . The inner bearing 22 is lubricated.

In the second oil tank 4, the oil slinger 6 rotates together with the driven shaft 2b, and then the oil slinger 6 will splash the lubricating oil in the second oil tank 4, and the splashed lubricating oil will cause the bearing in the second oil tank 4 to splash. 22 for lubrication.

The splashed lubricating oil enters from the first oil passage 71 at a relatively high level on the bearing seat 7, and reaches the first oil groove 91 along the corresponding second oil passage 81, because the first oil groove 91 is arranged around , so the lubricating oil is then sent out from the second oil passage 81 below and discharged from the first oil passage 71 with a relatively low relative horizontal position on the bearing seat 7 to form a circulating oil passage to lubricate and cool the equipment. Metal chips and other impurities generated during operation enter the fuel tank;

The splashed lubricating oil enters from the first oil passage 71 and enters the bearing seat 7 through the corresponding oil guide groove 81. The lubricating oil passes through the bearing 22 from one side of the bearing 22 and then is discharged from the other side to form a lubricating oil passage. It can effectively lubricate the bearing 22, and discharge impurities such as metal chips generated during the operation of the equipment into the oil tank.

The above is only a specific embodiment of the present invention, but the design concept of the present invention is not limited to this, and any non-substantial modification of the present invention by using this concept shall be an act that infringes the protection scope of the present invention.

Claims (10)

1. a synchronous double eccentric shaft vibration excitation device, comprising a base, an eccentric shaft, the position of the middle section of the eccentric shaft is an eccentric portion, and the position of both ends of the eccentric shaft is set on the base through a bearing, it is characterized in that: also include the first an oil tank, a second oil tank, a synchronizing gear, and an oil slinger, the eccentric shaft includes a driving shaft and a driven shaft, the first oil tank and the second oil tank are respectively arranged at both ends of the eccentric shaft, and the ends of the eccentric shaft and the The bearing at the corresponding end is sealed inside, the first oil tank and the second oil tank are respectively provided with lubricating oil, the driving shaft and the driven shaft located in the first oil tank are respectively sleeved with synchronizing gears that mesh with each other, and the synchronizing gears rotate Make the lubricating oil in the first oil tank splash to lubricate the bearings located in the first oil tank; the driving shaft or/and the driven shaft in the second oil tank are provided with an oil slinger that rotates together, and the rotation of the oil slinger makes the first The splash of lubricating oil in the second oil tank lubricates the bearing located in the second oil tank. 2. A synchronous double eccentric shaft vibration excitation device according to claim 1, characterized in that it further comprises a bearing seat and a bearing gland, the bearing seat is installed on the base and is sealedly connected with the base, and the bearing is installed In the bearing seat, the first oil tank includes a first cover body, the first cover body is covered on one side of the base and the bearing seat corresponding to this side is covered inside, the first cover body and the base Sealed connection, the second oil tank includes a second cover, the second cover covers one side of the base and covers the corresponding bearing seat on the side, and the second cover is sealed with the base. , the bearing seat forms an open end toward one side of the first cover or the second cover, and the other side is provided with a bearing gland for sealing. 3. A synchronous double eccentric shaft vibration excitation device according to claim 2, characterized in that: it further comprises a shaft sleeve, the shaft sleeve is arranged outside the eccentric shaft and corresponding to the inner side of the bearing gland, and the outer side of the shaft sleeve is provided with a shaft sleeve. A first oil groove with an opening facing outward and arranged around the axis, the bearing seat is provided with a first oil channel that runs through both sides, a second oil channel is provided in the bearing gland, and the first oil channel is provided with several , There are several second oil passages, and each first oil passage is distributed at different heights. One end of the second oil passage is connected to the first oil passage, and the other end is connected to the first oil groove. The corresponding The first passage and the second passage cooperate with the first oil groove to form a circulating oil passage in which lubricating oil enters from the first oil passage at the high position and is discharged from the first oil passage at the low position. 4. A synchronous double eccentric shaft vibration excitation device according to claim 3, characterized in that: a side of the bearing gland facing the bearing seat is provided with an oil guide groove, and the oil guide groove corresponds to a first oil passage and communicates with the bearing seat On the inner side, a lubricating oil passage is formed through which the lubricating oil enters one side of the bearing seat from the first oil passage channel and is discharged from the other side after passing through the bearing. 5. A synchronous double eccentric shaft vibration excitation device according to claim 3, characterized in that: the inner side of the bearing gland is provided with a second oil groove with an opening facing inward and arranged around the axis, the first oil groove and the second oil groove The dislocation arrangement forms a labyrinth seal structure. 6 . The synchronous double eccentric shaft vibration excitation device according to claim 5 , wherein the shaft sleeve is further provided with a sealing ring, and the sealing ring acts between the bearing gland and the shaft sleeve. 7 . 7 . The synchronous double eccentric shaft vibration excitation device according to claim 2 , wherein the open end of the bearing seat is provided with an inclined surface facing the bearing direction, and the inclined surface is used to guide the lubricating oil toward the bearing. 8 . direction gathering. 8 . The synchronous double eccentric shaft vibration excitation device according to claim 1 , wherein the first oil tank and the second oil tank are respectively provided with independently provided oil filling ports, oil level mirrors and oil drain ports. 9 . 9 . The synchronous double eccentric shaft vibration excitation device according to claim 1 , further comprising a closed cover, the closed cover is mounted on the base and is located between the first oil tank and the second oil tank, and the closed cover is 9 . The eccentric part of the eccentric shaft is sealed inside. 10. A thin oil lubrication method for a synchronous double eccentric shaft vibration excitation device, characterized in that: based on a synchronous double eccentric shaft vibration excitation device according to any one of claims 1-9, The driving shaft rotates and drives the driven shaft to rotate together through the synchronizing gear; in the first oil tank, the synchronizing gear rotates and splashes the lubricating oil; in the second oil tank, the lubricating oil splashes when the oil slinger rotates; The splashed lubricating oil enters from the relatively high first oil channel on the bearing seat, and reaches the first oil tank along the corresponding second oil channel, and then is sent out from the second oil channel below. It is discharged from the first oil channel with a relatively low relative horizontal position on the bearing seat to form a circulating oil circuit, which plays the role of lubrication, cooling and slag discharge; The splashed lubricating oil enters from the first oil passage, and enters the bearing seat through the corresponding oil guide groove. The lubricating oil passes through the bearing from one side of the bearing and is discharged from the other side to form a lubricating oil passage for lubrication and slag discharge. effect.

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