CN210762798U

CN210762798U - Dustproof turnabout drum of belt type reversed loader for coal mine

Info

Publication number: CN210762798U
Application number: CN201921676561.8U
Authority: CN
Inventors: 朱云峰; 王雪松; 王震
Original assignee: Changzhou Huihui Machinery Technology Co ltd
Current assignee: Changzhou Huihui Machinery Technology Co ltd
Priority date: 2019-10-09
Filing date: 2019-10-09
Publication date: 2020-06-16
Anticipated expiration: 2029-10-09

Abstract

The utility model discloses a dustproof bend pulley of belt type reversed loader for coal mine, belonging to the technical field of reversed loader, which is characterized in that the dustproof bend pulley comprises a fixed shaft and a roller which are coaxially arranged, two ends of the fixed shaft are coaxially and rotatably connected with a bearing, two ends of the roller are provided with positioning grooves, the dustproof bend pulley also comprises a bearing seat which is symmetrically arranged, one side of the bearing seat is abutted against the bottom of the positioning groove; a first groove is formed in one side, away from the bottom of the positioning groove, of the bearing seat, the bearing is located in the first groove, the bearing and the bearing seat rotate coaxially, and the circumferential outer side of the bearing seat is fixedly connected with the roller; one side of the bearing seat towards the end part of the fixed shaft is detachably connected with a bearing cover plate, and one side of the bearing cover plate towards the bearing seat is provided with a sealing dustproof piece. The utility model is suitable for an in dust such as colliery mine hole, the more environment of dregs large granule impurity, have and effectively prevent that impurity from getting into the bearing, reduce the friction between the bearing, reduce the damage of bearing to improve the life's of driven pulley effect.

Description

Dustproof turnabout drum of belt type reversed loader for coal mine

Technical Field

The utility model belongs to the technical field of the elevating conveyor technique and specifically relates to a dustproof driven roll of belt elevating conveyor for coal mine is related to.

Background

The transfer conveyor is mainly used in high-yield and high-efficiency comprehensive mechanized work for transferring and conveying coal, can be matched with a working face scraper conveyor, a crusher and a belt conveyor for use, and when the transfer conveyor is used, a trolley of the transfer conveyor is overlapped on a guide rail of the belt conveyor and can integrally move along the guide rail, so that the transfer conveyor is integrally adjusted along with the advancing step of the working face conveyor, and the coal is transferred to a telescopic belt conveyor by the working face conveyor through a bridge type transfer conveyor and is conveyed away.

The bend pulley is also called a guide pulley, is a common belt conveyor hardware fitting and is mainly used for changing the running direction of a conveying belt or pressing the conveying belt to increase the wrap angle of the conveying belt and a transmission pulley. The bend pulley is mainly below the belt movement, if the belt conveying direction is left, the bend pulley is on the right side of the belt conveyor, the main structure is a bearing and a steel cylinder, the transmission pulley is a driving wheel of the belt conveyor, the two wheels are compared with two wheels of a bicycle from the relation between the two wheels, the rear wheel is the transmission pulley, and the front wheel is the bend pulley; the turnabout drum and the transmission drum are not different in structure, and the transmission drum is divided into a main transmission drum and a driven drum by a main shaft drum bearing and a bearing chamber.

Chinese patent No. CN205616139U discloses a bend pulley for a conveyor belt, which comprises a cylindrical pulley, and comprises the following components: the bearing seat, the bearing, the bend drum shaft, the drum and the rib plate; wherein: two ends of a bend drum shaft are respectively arranged on two bearing seats through two-point supported bearings, and a drum with a cylindrical structure is circumferentially fixed with the bend drum shaft through a rib plate; the bearing is specifically a double-row centripetal spherical roller bearing 3610; and an anti-skid wear-resistant layer is fixedly arranged on the outer cylindrical surface of the roller.

Among the above-mentioned prior art scheme, when the driven roll was used for the elevating conveyor of coal mine transportation on, because in environments such as colliery mine hole, large granule impurity such as dust, dregs is more, can be drawn into the bearing through the cylinder both ends for the frictional force of bearing during operation is great, and causes the damage of bearing, thereby reduces driven roll's life.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a dustproof driven pulley of belt elevating conveyor for coal mine has and effectively prevents that impurity from getting into the bearing, reduces the frictional force of bearing during operation, and can reduce the damage of bearing under the environment that contains a large amount of large granule impurity to improve driven pulley's life's effect.

The above technical purpose of the present invention can be achieved by the following technical solutions:

the dustproof bend pulley of the belt type reversed loader for the coal mine comprises a fixed shaft and a pulley which are coaxially arranged, wherein bearings are coaxially and rotatably connected to two ends of the fixed shaft, positioning grooves are formed in two ends of the pulley, the dustproof bend pulley further comprises bearing blocks which are symmetrically arranged, the bearing blocks are coaxially arranged with the fixed shaft, and one side of each bearing block is abutted to the bottom of each positioning groove;

a first groove is formed in one side, away from the bottom of the positioning groove, of the bearing seat, the bearing is located in the first groove, the bearing and the bearing seat rotate coaxially, and the circumferential outer side of the bearing seat is fixedly connected with the rotary drum; one side of the bearing seat facing the end part of the fixed shaft is detachably connected with a bearing cover plate, and one side of the bearing cover plate facing the bearing seat is provided with a sealing dustproof piece.

Through adopting above-mentioned technical scheme, the bearing frame is used for supporting the cylinder, and the bearing is used for the cylinder to rotate, and bearing cover plate, bearing frame and sealed dust keeper are used for preventing that large granule impurity such as outside dust, dregs from getting into in the bearing to reduce the bearing because the damage that the friction of large granule caused in the course of the work, thereby improve the life who changes to the cylinder.

The utility model discloses further set up to, the dustproof of institute is O type sealing washer, the bearing apron orientation one side of bearing frame is seted up and is annular second recess, O type sealing washer is located in the second recess, just the external diameter of O type sealing washer is greater than the external diameter of second recess.

Through adopting above-mentioned technical scheme, O type sealing washer is gone into in the second recess through compression card to reach good sealed effect between feasible bearing cover plate and the bearing frame.

The utility model discloses further set up to, cylinder both ends fixedly connected with dust guard, just the fixed cover of dust guard is established on the fixed axle.

Through adopting above-mentioned technical scheme, the dust guard is arranged in further preventing that external large granule dust from invading the cylinder, and can prevent that external humid air and large granule impurity from corroding bearing apron and bearing frame to reach the effect of protection bearing.

The utility model is further arranged in that two ends of the fixed shaft are provided with first oil injection grooves, and oil injection cups are arranged in the first oil injection grooves; first oiling recess has been seted up along its axial to first oiling recess tank bottom, second oiling groove tank bottom department intercommunication has the third oiling recess, the third oiling recess runs through the fixed axle radially sets up and is located the bearing with between the first recess tank bottom.

Through adopting above-mentioned technical scheme, to oiling in the oiling cup, lubricating oil flows to bearing department through first oiling recess, second oiling recess and third oiling recess to lubricated bearing reduces the frictional resistance when the bearing rotates.

The utility model discloses further set up to, the third recess has still been seted up to first recess tank bottom department, be equipped with first oil blanket on the fixed axle, just first oil blanket is located in the third recess.

Through adopting above-mentioned technical scheme, first oil blanket is used for preventing that lubricating oil from flowing to keeping away from bearing one side through the gap between bearing frame and the fixed axle to make lubricating oil only flow towards the bearing.

The utility model discloses further set up to, bearing cap is equipped with fourth recess and fifth recess along its axial in proper order, it is equipped with second oil blanket and third oil blanket still to overlap in proper order on the fixed axle, just the second oil blanket is located in the fourth recess, the third oil blanket is located in the fifth recess.

Through adopting above-mentioned technical scheme, second oil blanket and third oil blanket are used for preventing that outside dust from getting into in the bearing through the clearance between bearing cover plate and the fixed axle to further protection the bearing.

Through adopting above-mentioned technical scheme, the dust guard is with preventing that external large granule dust from invading in the cylinder, and can prevent that external humid air and large granule impurity from corroding bearing apron and bearing frame to reach the effect of protection bearing.

The utility model discloses further set up to, still the cover is equipped with a plurality of wave washers on the fixed axle, wave washer is located the bearing with between the bearing apron.

Through adopting above-mentioned technical scheme, wave washer is used for preventing that the bearing is not hard up, slows down the power that the bearing assaulted the bearing apron, possesses good elasticity and shock resistance performance such as.

To sum up, the utility model discloses following beneficial effect has:

1. through the arrangement of the bearing cover plate and the dustproof plate, large particle dust outside can be prevented from entering the roller, abrasion of large particle impurities to the bearing is reduced, and the service life of the turnabout roller is prolonged;

2. the O-shaped sealing ring is arranged, so that the effect of well sealing the bearing cover plate and the bearing seat can be achieved;

3. through the setting of oiling cup, can play lubricated bearing, reduce bearing frictional resistance to reach the maintenance bearing, improve bearing life's effect.

Drawings

Fig. 1 is a schematic view of the overall structure in this embodiment.

Fig. 2 is a partially enlarged schematic view of a portion a of fig. 1 for embodying a connection relationship between the fixed shaft and the end of the drum.

Fig. 3 is a partially enlarged schematic view of a portion B in fig. 1, for illustrating a connection relationship between the second groove and the O-ring.

In the figure, 1, a shaft is fixed; 2. a drum; 21. positioning a groove; 22. sealing the dustproof piece; 3. a bearing; 31. a dust-proof plate; 32. a wave washer; 4. a bearing seat; 41. a first groove; 42. a second groove; 43. an O-shaped sealing ring; 5. a bearing cover plate; 51. a third groove; 52. a first oil seal; 53. a fourth groove; 54. a fifth groove; 55. a second oil seal; 56. a third oil seal; 6. a first oiling groove; 61. an oil filling cup; 62. a second oiling groove; 63. and a third oiling groove.

Detailed Description

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

Example (b):

referring to fig. 1, the dustproof bend pulley of the belt type reversed loader for the coal mine disclosed by the embodiment comprises a fixed shaft 1, wherein two ends of the fixed shaft 1 are symmetrically sleeved with a bearing 3 cover plate and a bearing seat 4, and the bearing 3 cover plate is arranged towards the end part of the fixed shaft 1. The coaxial cylinder 2 that is provided with in the 1 circumference outside of fixed axle, constant head tank 21 has been seted up to 2 both ends inside walls of cylinder, and the diameter of constant head tank 21 is greater than the 2 internal diameters of cylinder, and bearing frame 4 keeps away from one side and the 21 tank bottom butt of constant head tank of 3 apron of bearing, and the lateral wall of bearing frame 4 passes through welded fastening with the just inside wall in location. Bearing frame 4 has seted up first recess 41 towards one side of bearing 3 apron, and bearing 3 is installed to first recess 41, and bearing 3 is double-row self-aligning roller bearing, and bearing 3 is used for supporting cylinder 2 with bearing frame 4, and can reduce the coefficient of friction of cylinder 2 in the rotation process.

Referring to fig. 1 and 2, a sealing dust-proof part 22 is arranged on one side of a bearing 3 cover plate facing a bearing seat 4, preferably, the sealing dust-proof part 22 is an O-shaped sealing ring 43 (see fig. 3), an annular second groove 42 (see fig. 3) is formed in the bearing 3 cover plate, the O-shaped sealing ring 43 is installed in the second groove 42, the outer diameter of the O-shaped sealing ring 43 is larger than that of the second groove 42, after the O-shaped sealing ring 43 is pressed into the second groove 42, the bearing 3 cover plate and the bearing seat 4 are connected through screws, the bearing 3 cover plate, the O-shaped sealing ring 43 and the bearing seat 4 form sealing, and external large-particle impurities can be effectively prevented from entering the bearing 3.

Referring to fig. 1 and 2, in order to reduce the abrasion of the bearing 3 caused by impacting the cover plate of the bearing 3 during the rotation process, a wave washer 32 is further provided on the side of the bearing 3 facing the cover plate of the bearing 3, and the wave washer 32 is coaxially arranged with the fixed shaft 1. In order to prevent particles such as dust, dregs from blowing into the roller 2 and adhering to the bearing 3 cover plate and the bearing seat 4, the two ends of the roller 2 are provided with dust-proof plates 31, the dust-proof plates 31 are fixedly connected with the bearing 3 cover plate through screws, and the end of the fixed shaft 1 penetrates out of the dust-proof cover plate.

Referring to fig. 2, preferably, in order to reduce friction generated when the bearing 3 rotates, first oil injection grooves 6 are formed at both ends of the fixed shaft 1, second oil injection grooves 62 are formed at the groove bottoms of the first oil injection grooves 6 along the axial direction thereof, and the second oil injection grooves 62 extend to the groove bottoms of the first grooves 41. The groove bottom of the second oiling groove 62 is communicated with a third oiling groove 63, the third oiling groove 63 penetrates through the fixed shaft 1 and is radially arranged and located between the bottom of the bearing 3 and the bottom of the first groove 41, an oiling cup 61 is arranged in the first oiling groove 6, and lubricating oil flows to the bearing 3 through the first oiling groove 6, the second oiling groove 62 and the third oiling groove 63 which are sequentially communicated from the oiling cup 61 to maintain and lubricate the bearing 3.

Referring to fig. 1 and 2, in order to prevent the lubricating oil from flowing away through the gap between the bearing seat 4 and the fixed shaft 1 toward the side away from the bearing 3, a third groove 51 is formed at the bottom of the first groove 41, and a first oil seal 52 is installed in the third groove 51. In order to prevent external dust from entering the bearing 3 through the gap between the cover plate of the bearing 3 and the fixed shaft 1 and also to prevent lubricating oil from flowing out toward the end of the fixed shaft 1, a fourth groove 53 and a fifth groove 54 are sequentially arranged on the dustproof cover plate, a second oil seal 55 is installed in the fourth groove 53, and a third oil seal 56 is installed in the fifth groove 54. The first oil seal 52, the second oil seal 55, and the third oil seal 56 are J-type frameless rubber oil seals.

The installation principle of the above embodiment is as follows: the roller 2 is sleeved on the outer side of the circumferential direction of the fixed shaft 1, the bearing seats 4 are sleeved on the side walls of the two ends of the fixed shaft 1, the bearing seats 4 are inserted into the positioning grooves 21, one side of each bearing seat 4 is abutted to the bottoms of the positioning grooves 21, and the bearing seats and the roller 2 are fixed by welding the fixed shaft 1.

Next, the first oil seal 52 is installed in the third recess 51 of the bearing housing 4, the bearing 3 is installed in the first recess 41 of the bearing housing 4, the wave washer 32 is fitted from the end side wall of the stationary shaft 1 toward the bearing 3, and then the bearing 3 cover plate is fitted from the end side wall of the stationary shaft 1 toward the wave washer 32. The second oil seal 55 and the third oil seal 56 are embedded in the cover plate of the bearing 3, so that dust is prevented from entering the bearing 3 through the cover plate of the bearing 3.

Then, the bearing 3 cover plate is fixedly connected with the bearing seat 4 through screws, the two ends of the roller 2 are provided with the dust-proof plates 31, the outer diameter of each dust-proof plate 31 is the same as the inner diameter of the positioning groove 21, and the dust-proof plates 31 are fixedly connected with the bearing 3 cover plate through screws. Finally, the two ends of the fixed shaft 1 are arranged on a reversed loader (not shown in the figure), and the model of the reversed loader is SZB 630/757.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a coal mine is with dustproof turnabout drum of belt elevating conveyor, includes fixed axle (1) and cylinder (2) of coaxial setting, fixed axle (1) both ends coaxial rotation is connected with bearing (3), its characterized in that: the roller is characterized in that positioning grooves (21) are formed in two ends of the roller (2), the roller further comprises symmetrically arranged bearing blocks (4), the bearing blocks (4) are coaxially arranged with the fixed shaft (1), and one side of each bearing block (4) is abutted to the bottom of each positioning groove (21);

a first groove (41) is formed in one side, away from the bottom of the positioning groove (21), of the bearing seat (4), the bearing (3) is located in the first groove (41), the bearing (3) and the bearing seat (4) rotate coaxially, and the circumferential outer side of the bearing seat (4) is fixedly connected with the roller (2); bearing frame (4) orientation one side of fixed axle (1) tip can be dismantled and be connected with bearing (3) apron, bearing (3) are lapped upward orientation one side of bearing frame (4) is equipped with sealed dust keeper (22).

2. The dust-proof bend pulley of the belt type reversed loader for the coal mine according to claim 1, characterized in that: sealed dustproof member (22) are O type sealing washer (43), bearing (3) apron orientation one side of bearing frame (4) is seted up and is annular second recess (42), O type sealing washer (43) are located in second recess (42), just the external diameter of O type sealing washer (43) is greater than the external diameter of second recess (42).

3. The dust-proof bend pulley of the belt type reversed loader for the coal mine according to claim 1, characterized in that: the two ends of the roller (2) are fixedly connected with dust-proof plates (31), and the dust-proof plates (31) are fixedly sleeved on the fixed shaft (1).

4. The dust-proof bend pulley of the belt type reversed loader for the coal mine according to claim 1, characterized in that: first oil injection grooves (6) are formed in two ends of the fixed shaft (1), and oil injection cups (61) are arranged in the first oil injection grooves (6); second oiling recess (62) have been seted up along its axial to first oiling recess (6) tank bottom, second oiling recess tank bottom department intercommunication has third oiling recess (63), third oiling recess (63) run through fixed axle (1) radially sets up and is located bearing (3) with between first recess (41) the tank bottom.

5. The dust-proof bend pulley of the belt type reversed loader for the coal mine according to claim 1, characterized in that: third recess (51) have still been seted up to first recess (41) tank bottom department, be equipped with first oil blanket (52) on fixed axle (1), just first oil blanket (52) are located in third recess (51).

6. The dust-proof bend pulley of the belt type reversed loader for the coal mine according to claim 1, characterized in that: bearing (3) apron is equipped with fourth recess (53) and fifth recess (54) along its axial in proper order, still overlap in proper order on fixed axle (1) and be equipped with second oil blanket (55) and third oil blanket (56), just second oil blanket (55) are located in fourth recess (53), third oil blanket (56) are located in fifth recess (54).

7. The dust-proof bend pulley of the belt type reversed loader for the coal mine according to claim 1, characterized in that: still the cover is equipped with a plurality of wave washers 32 on fixed axle (1), wave washer 32 is located bearing (3) with between the bearing (3) apron.