CN205084986U - Box vibration exciter - Google Patents
Box vibration exciter Download PDFInfo
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- CN205084986U CN205084986U CN201520756888.1U CN201520756888U CN205084986U CN 205084986 U CN205084986 U CN 205084986U CN 201520756888 U CN201520756888 U CN 201520756888U CN 205084986 U CN205084986 U CN 205084986U
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Abstract
The utility model provides a box vibration exciter, including the box, the side that the box is relative is equipped with the through -hole that supplies the transmission shaft to pass, is fixed with on the transmission shaft to be located the outer eccentric block of box, be connected through the bearing between transmission shaft and the through -hole, the through -hole is equipped with bearing oil seal structure outward, and the bearing oil seal structure include: fix the bearing cover on the box with the bearing, it imbeds the maze lid that forms the labyrinth seals structure with bearing cover each other to fix on the transmission shaft, be located the bearing cover outside, it lies in the inboard disc of bearing cover to fix on the transmission shaft, the boss of maze lid supports the disc makes its and bearing inner race compress tightly, bearing, disc, bearing cover and maze tectiform become the multidimensional oil pocket that gets rid of of annular, the maze lid is located the surface of getting rid of the oil pocket and is equipped with the skewed tooth. The beneficial effects of the utility model are that seal, avoided the friction to produce high fever, improved the life of bearing and vibration exciter, the exciting force is adjustable, and the mechanism is simple, and is with low costs.
Description
Technical field
The utility model relates to a kind of vibrator, especially relates to a kind of box vibrator.
Background technology
Vibratory sieve is common equipment in mine mechanism, and the generation of its vibration mainly contains vibrator to realize.Now widely used eccentric block external vibrator overall structure has lightweight, that compact conformation, driving member lubrication is concentrated, easy to maintenance, manufacturing cost is lower feature.But there is a general problem in this structure, namely the bearing life in vibrator is shorter, often there is the phenomenon such as bearing heating, scaling loss, have a strong impact on the normal operation of vibratory sieve, the partly cause producing this problem is bearing lubrication oil seal structure poor sealing performance, cause oil spilling and enter dust, affecting the lubricant effect of bearing; Adopt the seal of felt formula oil suction inside hermetically-sealed construction, felt and labyrinth are covered to rub under high-speed rotation, to be produced high heat, cause bearing heating scaling loss, have a strong impact on the service life of vibrator.
Summary of the invention
The technical problems to be solved in the utility model is to provide a kind of box vibrator.
The technical problem that the utility model further solves is to provide a kind of box vibrator, comprises casing, and the side that casing is relative is provided with the through hole passed for power transmission shaft, power transmission shaft is fixed with the eccentric block be positioned at outside casing; Be connected by bearing between power transmission shaft with through hole; Be provided with bearing oil hermetically-sealed construction outside described through hole, bearing lubrication oil seal structure comprises:
Bearing is fixed on the bearing gland on casing;
Be fixed on power transmission shaft, be positioned at and mutually embed the labyrinth forming labyrinth seal structure with bearing gland outside bearing gland and cover;
Be fixed on disc power transmission shaft is positioned at inside bearing gland;
The boss of labyrinth lid props up disc makes itself and bearing inner race compress; Described bearing, disc, bearing gland and a labyrinth lid formation annular multiaspect get rid of oil pocket; Described labyrinth lid is positioned at the surface of getting rid of oil pocket and is provided with helical teeth.
Technique scheme of the present utility model, labyrinth lid is positioned at the surface of getting rid of oil pocket and is provided with helical teeth, can return, effectively prevent lubricating oil and overflow inside labyrinth seal mechanism the multistage oil catch that gets rid of of lubricating oil; Technique scheme avoids and use felt contacts oil resistance between bearing gland and labyrinth lid, labyrinth lid only contacts with power transmission shaft, with miscellaneous part without any contacting, friction can not be produced, thus efficiently avoid the generation of the high heat of friction, greatly increase the service life of bearing, decrease the number of times of dismounting maintenance, improve operating efficiency.
As the further improvement of the utility model technique scheme, overflow from the gap of bearing inner race and disc to avoid lubricating oil further, be provided with the back-up ring be fixed on power transmission shaft between described disc and bearing inner race, the boss of labyrinth lid props up disc makes itself and back-up ring compress.
As the further improvement of the utility model technique scheme, described casing is provided with spill port, described bearing gland is provided with back oil road, and oil pocket and spill port are got rid of in described back oil road connection, and the direction of vibration of described back oil road and vibrator is 30 degree to 60 degree angles.Box vibrator when in use, general meeting is installed with the angle horizontal by 38 degree of-50 degree, and the back oil road established in existing vibrator middle (center) bearing gland and direction of vibration horizontal or vertical, back oil road will horizontal by the angle of 38 degree of-50 degree in actual use, and the effect of lubrication and oil return can be affected; Therefore in the technical program, the angle design of back oil road compensate for the deviation that setting angle produces, and back oil road and horizontal plane are level or vertical substantially, more easily lubricate and oil extraction.Vibratory sieve vibrator used in use setting angle is all 38 degree to 53 degree, so be parallel during design or when vertically using, have a spill port to be minimumly be convenient to thorough oil return getting rid of in oil pocket, affecting lubricant effect in the scope of setting angle.
As the further improvement of the utility model technique scheme, in order to increase the bending side getting rid of oil pocket, strengthen oil return effect, enhanced leaktightness performance, it is protruding that the side that described bearing gland is relative with disc is provided with a circle bending; Described bearing gland is positioned at and gets rid of oil pocket and cover relative side with labyrinth and be provided with groove.
According to a preferred embodiment of the present utility model, the end of described helical teeth tilts towards disc direction, and now, the sealing effectiveness getting rid of oil pocket is best.
According to use experience, technique scheme effectively prevent entering of oil spilling and dust, but still has part dust can enter in casing along the radial direction of power transmission shaft, in order to overcome this shortcoming, is provided with O RunddichtringO between described labyrinth lid and power transmission shaft; O RunddichtringO is installed between described disc and power transmission shaft; O RunddichtringO prevents dust to enter in casing along the radial direction of power transmission shaft effectively.
As the further improvement of the utility model technique scheme, the end of described power transmission shaft is connected and installed with inside and outside two pieces of eccentric blocks by key; Eccentric block outside the outer peripheral face correspondence of described power transmission shaft is provided with the keyway group of adjustable mounting position.When fixed eccentric block quality, on two power transmission shafts, the angle of eccentric block determines the size of exciting force, the equipment required for different exciting forces often needs to install different vibrators, the technical program adjusts the angle of two eccentric blocks thus the size of adjustment exciting force by regulating the position that on two power transmission shafts, eccentric block is installed, and goes for different equipment to make same vibrator.
In technique scheme, the concrete technical scheme of keyway group is: described keyway group comprises several axially extension, circumferentially equally distributed keyways, and the radial angle of initial keyway and end keyway is greater than 0 degree and is less than 180 degree.
The advantage that the utility model has and good effect are: because the utility model adopts as above technical scheme, namely labyrinth lid is positioned at the surface of getting rid of oil pocket and is provided with helical teeth, can return the multistage oil catch that gets rid of of lubricating oil, effectively prevent lubricating oil and overflow inside labyrinth seal mechanism; Technique scheme avoids and use felt contacts oil resistance between bearing gland and labyrinth lid, labyrinth lid only contacts with power transmission shaft, with miscellaneous part without any contacting, friction can not be produced, thus efficiently avoid the generation of the high heat of friction, greatly increase the service life of bearing, decrease the number of times of dismounting maintenance, improve operating efficiency.On bearing seal cover back oil road to be designed to be the angle of 30 degree to 60 degree with the direction of vibration of vibrator, the differential seat angle of installation can be made up, make lubrication and oil extraction better effects if.Labyrinth is covered, is provided with O RunddichtringO between disc and power transmission shaft; Effectively prevent dust to enter in casing along the radial direction of power transmission shaft, avoid the pollution of dust to lubricating oil, indirectly improve the service life of bearing; The technical program adjusts the angle of two eccentric blocks thus the size of adjustment exciting force by regulating the position that on two power transmission shafts, eccentric block is installed, different equipment is gone for make same vibrator, this conciliation structure is simply easy to realization, relative to the existing technical scheme reconciling exciting force size by installing dismountable lead on eccentric block, cost is low, use safety.
Except technical problem, the technical characteristic forming technical scheme and the advantage brought by the technical characteristic of these technical schemes that the utility model described above solves, the advantage that the other technologies feature comprised in the other technologies problem that the box vibrator of the utility model can solve, technical scheme and these technical characteristics bring, will be described in further detail by reference to the accompanying drawings.
Accompanying drawing explanation
Fig. 1 is the structural representation of the box vibrator of the utility model;
Fig. 2 is the enlarged drawing of part B in Fig. 1;
Fig. 3 is the sectional view in C-C face in Fig. 1;
Fig. 4-Fig. 8 is the structural representation of two axle upper outside side eccentric block relative installation in the box vibrator of the utility model;
In figure: 10, casing; 11, spill port 20, power transmission shaft; 21, keyway; 30, eccentric block; 40, bearing; 50, bearing gland; 51, back oil road; 52, bending is protruding; 53, groove; 60, labyrinth lid; 61, helical teeth; 70, disc; 80, oil pocket is got rid of; 90, back-up ring; 100, O RunddichtringO.
Detailed description of the invention
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is described further.It should be noted that at this, the explanation for these embodiments understands the utility model for helping, but does not form restriction of the present utility model.In addition, if below the technical characteristic that relates in described each embodiment of the utility model do not form conflict each other and just can mutually combine.
Embodiment one:
The structural representation of box the first embodiment of vibrator of the utility model shown in Fig. 1 to Fig. 3, this box vibrator comprises casing 10, the side that casing 10 is relative is provided with the through hole passed for power transmission shaft 20, power transmission shaft 20 is fixed with the eccentric block 30 be positioned at outside casing 10; Power transmission shaft 20 is connected by bearing 40 with between through hole; Be provided with bearing oil hermetically-sealed construction outside described through hole, bearing lubrication oil seal structure comprises:
Bearing 40 is fixed on the bearing gland 50 on casing 10;
Be fixed on power transmission shaft 20, be positioned at and mutually embed with bearing gland 50 labyrinth forming labyrinth seal structure outside bearing gland 50 and cover 60;
Be fixed on the disc 70 power transmission shaft 20 is positioned at inside bearing gland 50;
Be provided with the back-up ring 90 be fixed on power transmission shaft 20 between described disc 70 and bearing 40 inner ring, the boss of labyrinth lid 60 props up disc 70 makes itself and back-up ring 90 compress; Described bearing 40, disc 70, bearing gland 50 and labyrinth lid 60 formed an annular multiaspect get rid of oil pocket 80; The surface that described labyrinth lid 60 is positioned at disc 70 is provided with helical teeth 61.
Described casing 10 is provided with spill port 11, and described bearing gland 50 is provided with back oil road 51, and oil pocket 80 and spill port 11 are got rid of in described back oil road 51 connection; Described back oil road 51 is 45 degree of angles with the direction of vibration of vibrator; The side that described bearing gland 50 is relative with disc 70 is provided with a circle bending projection 52; Described bearing gland 50 is positioned at and gets rid of oil pocket 80 and labyrinth and cover 60 relative sides and be provided with groove 53; The end of described helical teeth 61 tilts towards disc 70 direction; Between described labyrinth lid 60 and power transmission shaft 20, O RunddichtringO 100 is installed; Between described disc 70 and power transmission shaft 20, O RunddichtringO is installed.
The end of described power transmission shaft 20 is connected and installed with inside and outside two pieces of eccentric blocks 30 by key; Eccentric block outside the outer peripheral face correspondence of described power transmission shaft 20 is provided with the keyway group of adjustable mounting position.Described keyway group comprises 5 axially extension, circumferentially equally distributed keyways 21, and the radial angle of initial keyway and end keyway is 116 degree.Now, regulate the keyway position that on box vibrator, two power transmission shaft homonymy eccentric blocks are fixing, just can recall the exciting force of 5 gears, the shake being respectively vibrator as shown in Fig. 4-Fig. 8 float into strong, in strong, in, in weak and weak when eccentric block installation site structural representation.
Embodiment two:
Box vibrator comprises casing 10, and the side that casing 10 is relative is provided with the through hole passed for power transmission shaft 20, power transmission shaft 20 is fixed with the eccentric block 30 be positioned at outside casing 10; Power transmission shaft 20 is connected by bearing 40 with between through hole; Be provided with bearing oil hermetically-sealed construction outside described through hole, bearing lubrication oil seal structure comprises:
Bearing 40 is fixed on the bearing gland 50 on casing 10;
Be fixed on power transmission shaft 20, be positioned at and mutually embed with bearing gland 50 labyrinth forming labyrinth seal structure outside bearing gland 50 and cover 60;
Be fixed on the disc 70 power transmission shaft 20 is positioned at inside bearing gland 50;
Be provided with the back-up ring 90 be fixed on power transmission shaft 20 between described disc 70 and bearing 40 inner ring, the boss of labyrinth lid 60 props up disc 70 makes itself and back-up ring 90 compress; Described bearing 40, disc 70, bearing gland 50 and labyrinth lid 60 formed an annular multiaspect get rid of oil pocket 80; The surface that described labyrinth lid 60 is positioned at disc 70 is provided with helical teeth 61; Described casing 10 is provided with spill port 11, and described bearing gland 50 is provided with back oil road 51, and oil pocket 80 and spill port 11 are got rid of in described back oil road 51 connection.
Described casing 10 is provided with spill port 11, and described bearing gland 50 is provided with back oil road 51, and oil pocket 80 and spill port 11 are got rid of in described back oil road 51 connection; Described back oil road 51 is 30 degree of angles with the direction of vibration of vibrator.; The side that described bearing gland 50 is relative with disc 70 is provided with a circle bending projection 52; Described bearing gland 50 is positioned at and gets rid of oil pocket 80 and labyrinth and cover 60 relative sides and be provided with groove 53; The end of described helical teeth 61 tilts towards disc 70 direction; Between described labyrinth lid 60 and power transmission shaft 20, O RunddichtringO 100 is installed; Between described disc 70 and power transmission shaft 20, O RunddichtringO is installed.
The end of described power transmission shaft 20 is connected and installed with inside and outside two pieces of eccentric blocks 30 by key; Eccentric block outside the outer peripheral face correspondence of described power transmission shaft 20 is provided with the keyway group of adjustable mounting position.Described keyway group comprises 2 axially extension, circumferentially equally distributed keyways 21, and the radial angle of initial keyway and end keyway is 20 degree.
Embodiment three:
Box vibrator comprises casing 10, and the side that casing 10 is relative is provided with the through hole passed for power transmission shaft 20, power transmission shaft 20 is fixed with the eccentric block 30 be positioned at outside casing 10; Power transmission shaft 20 is connected by bearing 40 with between through hole; Be provided with bearing oil hermetically-sealed construction outside described through hole, bearing lubrication oil seal structure comprises:
Bearing 40 is fixed on the bearing gland 50 on casing 10;
Be fixed on power transmission shaft 20, be positioned at and mutually embed with bearing gland 50 labyrinth forming labyrinth seal structure outside bearing gland 50 and cover 60;
Be fixed on the disc 70 power transmission shaft 20 is positioned at inside bearing gland 50;
Be provided with the back-up ring 90 be fixed on power transmission shaft 20 between described disc 70 and bearing 40 inner ring, the boss of labyrinth lid 60 props up disc 70 makes itself and back-up ring 90 compress; Described bearing 40, disc 70, bearing gland 50 and labyrinth lid 60 formed an annular multiaspect get rid of oil pocket 80; The surface that described labyrinth lid 60 is positioned at disc 70 is provided with helical teeth 61; Described casing 10 is provided with spill port 11, and described bearing gland 50 is provided with back oil road 51, and oil pocket 80 and spill port 11 are got rid of in described back oil road 51 connection.
Described casing 10 is provided with spill port 11, and described bearing gland 50 is provided with back oil road 51, and oil pocket 80 and spill port 11 are got rid of in described back oil road 51 connection; Described back oil road 51 is 60 degree of angles with the direction of vibration of vibrator; The side that described bearing gland 50 is relative with disc 70 is provided with a circle bending projection 52; Described bearing gland 50 is positioned at and gets rid of oil pocket 80 and labyrinth and cover 60 relative sides and be provided with groove 53; The end of described helical teeth 61 tilts towards disc 70 direction; Between described labyrinth lid 60 and power transmission shaft 20, O RunddichtringO 100 is installed; Between described disc 70 and power transmission shaft 20, O RunddichtringO is installed.
The end of described power transmission shaft 20 is connected and installed with inside and outside two pieces of eccentric blocks 30 by key; Eccentric block outside the outer peripheral face correspondence of described power transmission shaft 20 is provided with the keyway group of adjustable mounting position.Described keyway group comprises 8 axially extension, circumferentially equally distributed keyways 21, and the radial angle of initial keyway and end keyway is 170 degree.
In above-mentioned three embodiments, described disc 70 also adopts and technical measures identical in prior art with between bearing 40: can not have back-up ring 90 between inner ring, and the boss of labyrinth lid 60 props up disc 70 itself and bearing 40 inner ring are compressed; The design of back-up ring 90 in above-described embodiment can enhanced leaktightness further, prevents oil spilling.
Below by reference to the accompanying drawings detailed description is made to embodiment of the present utility model, but the utility model is not limited to described embodiment.For the ordinary skill in the art, carry out multiple change, amendment, replacement and distortion to these embodiments without departing from the principles and spirit of the present invention still to fall within protection domain of the present utility model.
Claims (10)
1. box vibrator, comprise casing (10), the side that casing (10) is relative is provided with the through hole passed for power transmission shaft (20), power transmission shaft (20) is fixed with and is positioned at casing (10) eccentric block outward (30); Power transmission shaft (20) is connected by bearing (40) with between through hole; Be provided with bearing oil hermetically-sealed construction outside described through hole, it is characterized in that: bearing lubrication oil seal structure comprises:
Bearing (40) is fixed on the bearing gland (50) on casing (10);
Be fixed on power transmission shaft (20) upper, be positioned at bearing gland (50) outside and mutually embed the labyrinth forming labyrinth seal structure with bearing gland (50) and cover (60);
Be fixed on the disc (70) power transmission shaft (20) being positioned at bearing gland (50) inner side;
The boss in labyrinth lid (60) props up disc (70) makes itself and bearing (40) inner ring compress; Described bearing (40), disc (70), bearing gland (50) and labyrinth lid (60) formed an annular multiaspect get rid of oil pocket (80); The surface that described labyrinth lid (60) is positioned at disc (70) is provided with helical teeth (61).
2. box vibrator according to claim 1, it is characterized in that: be provided with the back-up ring (90) be fixed on power transmission shaft (20) between described disc (70) and bearing (40) inner ring, the boss in labyrinth lid (60) props up disc (70) makes itself and back-up ring (90) compress.
3. box vibrator according to claim 1 and 2, it is characterized in that: described casing (10) is provided with spill port (11), described bearing gland (50) is provided with back oil road (51), and oil pocket (80) and spill port (11) are got rid of in described back oil road (51) connection; Described back oil road (51) is 30 degree to 60 degree angles with the direction of vibration of vibrator.
4. box vibrator according to claim 1 and 2, is characterized in that: the side that described bearing gland (50) is relative with disc (70) is provided with a circle bending projection (52).
5. box vibrator according to claim 1 and 2, is characterized in that: described bearing gland (50) is positioned at and gets rid of oil pocket (80) and cover (60) relative side with labyrinth and be provided with groove (53).
6. box vibrator according to claim 1 and 2, is characterized in that: the end of described helical teeth (61) tilts towards disc (70) direction.
7. box vibrator according to claim 1 and 2, is characterized in that: be provided with O RunddichtringO (100) between described labyrinth lid (60) and power transmission shaft (20).
8. box vibrator according to claim 1 and 2, is characterized in that: be provided with O RunddichtringO between described disc (70) and power transmission shaft (20).
9. box vibrator according to claim 1 and 2, is characterized in that: the end of described power transmission shaft (20) is connected and installed with inside and outside two pieces of eccentric blocks (30) by key; Eccentric block outside the outer peripheral face correspondence of described power transmission shaft (20) is provided with the keyway group of adjustable mounting position.
10. box vibrator according to claim 9, is characterized in that: described keyway group comprises several axially extension, circumferentially equally distributed keyways (21), and the radial angle of initial keyway and end keyway is greater than 0 degree and is less than 180 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520756888.1U CN205084986U (en) | 2015-09-28 | 2015-09-28 | Box vibration exciter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520756888.1U CN205084986U (en) | 2015-09-28 | 2015-09-28 | Box vibration exciter |
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| Publication Number | Publication Date |
|---|---|
| CN205084986U true CN205084986U (en) | 2016-03-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520756888.1U Active CN205084986U (en) | 2015-09-28 | 2015-09-28 | Box vibration exciter |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108708907A (en) * | 2018-07-09 | 2018-10-26 | 新乡市通泰机械有限公司 | Flange form thin oil vibration generator |
| CN108716609A (en) * | 2018-07-09 | 2018-10-30 | 新乡市通泰机械有限公司 | A seating motor synchronizing thin oil vibration generator |
| CN114087369A (en) * | 2021-11-15 | 2022-02-25 | 中国空气动力研究与发展中心设备设计与测试技术研究所 | Combined labyrinth structure dynamic sealing device |
-
2015
- 2015-09-28 CN CN201520756888.1U patent/CN205084986U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108708907A (en) * | 2018-07-09 | 2018-10-26 | 新乡市通泰机械有限公司 | Flange form thin oil vibration generator |
| CN108716609A (en) * | 2018-07-09 | 2018-10-30 | 新乡市通泰机械有限公司 | A seating motor synchronizing thin oil vibration generator |
| CN114087369A (en) * | 2021-11-15 | 2022-02-25 | 中国空气动力研究与发展中心设备设计与测试技术研究所 | Combined labyrinth structure dynamic sealing device |
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