CN216692100U - Gear box for double-toothed roller screening crusher - Google Patents

Abstract

A gear box for a double-toothed roller screening crusher belongs to the technical field of gear boxes. Including the box, draw input shaft (5) and output shaft (8) on the box surface, carry out the transmission through multistage gear shaft between input shaft (5) and output shaft (8), be provided with the bearing respectively at the both ends of input shaft (5), output shaft (8) and gear shaft between, at its characterized in that: the inside lubricated unit that lubricates the bearing that is provided with of box, lubricated unit is including connecing oil groove (21) and lubricated passageway (22), connects oil groove (21) to set up on the box inner wall and lie in the one side that corresponds the bearing, lubricated passageway (22) one end with connect oil groove (21) intercommunication, the other end extends to the outside that corresponds the bearing after passing the box. In this double toothed roller screening breaker gear box, through setting up lubricated unit, lubricate the bearing in the box, avoid the bearing to lead to losing efficacy because of lubricated not enough.

Description

Gear box for double-toothed roller screening crusher

Technical Field

A gear box for a double-toothed roller screening crusher belongs to the technical field of gear boxes.

Background

The double-toothed roller screening crusher is one equipment widely used in mining, chemical industry, electric industry and other industry and has the advantages of screening, selective crushing and reducing crushing amount. When the double-tooth roller screening crusher is used, the input end of the double-tooth roller screening crusher needs to be connected with the driving motor through the gear box, and therefore the gear box has an extremely important function as a device for connecting the double-tooth roller screening crusher and the driving motor. The traditional gear box for the double-tooth roller screening crusher generally has the following defects: (1) because the double-toothed roller screening crusher is often used under the working condition of high dust, the gear box is often damaged because of the sealing problem and the dust enters the inside of the gear box. (2) The double-toothed roller screening crusher is in a strong vibration state during operation, so that bearings in a gear box are prone to creep due to vibration. (3) The bearing in the traditional gearbox is often failed due to lack of lubrication, and further damage to the gearbox is easily caused.

Disclosure of Invention

The technical problem to be solved by the utility model is as follows: overcome prior art's not enough, provide one kind through setting up lubricated unit, lubricate the bearing in the box, avoid the bearing because of lubricated not enough lead to the gearbox for the failed double tooth roller screening breaker.

The technical scheme adopted by the utility model for solving the technical problems is as follows: this double gear roller screening is gear box for breaker, including the box, draw forth input shaft and output shaft on the box surface, carry out the transmission through the multistage gear shaft between input shaft and output shaft, be provided with the bearing respectively at the both ends of input shaft, output shaft and gear shaft between, at its characterized in that: the inside lubricated unit that carries out lubrication to the bearing that is provided with of box, lubricated unit is including connecing oil groove and lubricated passageway, connects the oil groove setting on the box inner wall and lie in the one side that corresponds the bearing, lubricated passageway one end with connect the oil groove intercommunication, the other end extends to the outside that corresponds the bearing after passing the box.

Preferably, the box body comprises an upper box body and a lower box body which are butted up and down, the upper side and the lower side of each bearing are respectively provided with one lubricating unit, and the lubricating units above and below the bearings are respectively arranged in the upper box body and the lower box body.

Preferably, the lubricating unit is arranged in the upper box body, and an oil receiving groove in the lubricating unit is provided with an upward opening; the lubricating unit is arranged in the lower box body, and an oil receiving groove in the lubricating unit is provided with a downward opening.

Preferably, the gear shaft comprises a secondary gear shaft and a tertiary gear shaft, and the secondary gear shaft and the tertiary gear shaft are sequentially arranged from the input shaft to the output shaft between the input shaft and the output shaft.

Preferably, the front end face and the rear end face of the box body are respectively provided with an input port and an output port, the input shaft and the output shaft are respectively led out from the input port and the output port, and the input port and the output port are respectively provided with an input sealing assembly and an output sealing assembly.

Preferably, the output sealing assembly comprises an output end labyrinth seal and an output oil seal, an output end through cover is arranged at the output port, two layers of output oil seals are sequentially arranged on an inner ring of the output end through cover from inside to outside, an output sealing cover is arranged at the outer end of the output end through cover, an output sealing sleeve is arranged on the inner ring of the output sealing cover, and the output sealing cover and the output sealing sleeve form an output end labyrinth seal sleeved on an outer ring of the output shaft; the excircle of the output sealing cover is an output hanging plate outer spigot.

The input sealing assembly comprises an input labyrinth seal and an input oil seal, an input end transparent cover is arranged at the position of an input port, the input oil seal is arranged on an inner ring of the input end transparent cover, an input sealing sleeve is arranged at the outer end of the input end transparent cover, an input sealing cover is arranged on the inner ring of the input sealing sleeve, and the input sealing sleeve and the input sealing cover form an input labyrinth seal sleeved on an outer ring of the input shaft.

Preferably, a pressure plate is fixed to an outer side of the bearing.

Preferably, two hanging rings are fixed at the top of the box body at intervals, a ventilation cap is arranged between the two hanging rings, and a protective cover is sleeved outside the ventilation cap.

Preferably, an input hanging plate is arranged on the outer ring of the input shaft, a plurality of fixing holes are formed in the periphery of the input hanging plate, and an input hanging plate outer spigot is arranged on the surface of the input hanging plate

Preferably, a set of output hanging plates are arranged on the upper side and the lower side of the end face of the output shaft led out of the box body respectively, each set of output hanging plates comprises two output hanging plates arranged at intervals, the two output hanging plates of each set are located on the two sides of the end face of the box body respectively, a plurality of fixing holes are formed in the surface of each output hanging plate respectively, and key grooves are formed between the upper set of output hanging plates and the lower set of output hanging plates at intervals.

Compared with the prior art, the utility model has the beneficial effects that:

1. in this double toothed roller screening breaker gear box, through setting up lubricated unit, lubricate the bearing in the box, avoid the bearing to lead to losing efficacy because of lubricated not enough.

2. A plurality of fixed orificess through input link plate outer lane and input link plate outer tang are fixed with outside driving motor, make input shaft and driving motor's motor shaft butt joint simultaneously, carry out the mode of fixing through input link plate and driving motor, have left out the installation basis that traditional gear box need set up on ground, have simplified the structure and have saved installation space simultaneously.

3. This double gear roller screening for breaker gear box adopts the mounting means of side-hanging, centers through the outer tang of output link plate and the cooperation of the interior tang of working machine, and the keyway passes through the key piece hookup with the working machine keyway and is used for supplementary installation, keeps gear box input/output to be located horizontal position, and the butt joint of this gear box and working machine is realized through fixed orifices and the adoption bolt hookup of working machine to the output link plate. The installation mode avoids the process of manual alignment and adjustment of the output shaft of the gear box and the working machine shaft in the installation process by means of the outer spigot of the output hanging plate and the inner spigot of the working machine, the key block and the key groove, the installation is simple and convenient, the centering precision is high, and the installation mode is more suitable for underground operation of a coal mine.

4. And pressing plates are respectively fixed on the outer sides of the inner rings of the bearings at the two ends of the secondary gear shaft, the tertiary gear shaft and the output shaft, so that the inner rings of the bearings are prevented from creeping due to vibration in the working process of the gear box. And an O-shaped ring with corresponding specification is arranged in an annular groove of the outer ring of each self-aligning roller bearing to prevent the outer ring of the bearing from creeping. The bearing capacity of the gear is improved by modifying the gear in a tooth direction and a drum shape.

5. In the gear box for the double-toothed roller screening crusher, the sealing structure combining labyrinth sealing and single-framework oil sealing is arranged at the input shaft, and the sealing structure combining labyrinth sealing and double-framework oil sealing is arranged at the output shaft, so that the gear box is particularly suitable for being used in a high-dust working condition state; on the other hand, after abrasion occurs after long-time use, only the oil seal bushing needs to be replaced without replacing the shaft, so that the maintenance is convenient, and the cost is low.

Drawings

Fig. 1-2 are gear box axis diagrams for a double-tooth roller screening crusher.

FIG. 3 is a front view of a gear box for a dual gear roller screen crusher.

FIG. 4 is a rear view of a gear box for a double-toothed roller screen crusher.

Fig. 5 is a sectional view taken along line a-a in fig. 3.

Fig. 6 is a sectional view taken along line B-B in fig. 3.

Fig. 7 is an enlarged view of a portion a in fig. 5.

Fig. 8 is an enlarged view of fig. 5 at B.

Fig. 9 is an enlarged view of fig. 6 at C.

Wherein: 1. the device comprises an upper box body 2, a shield 3, a lifting ring 4, an input hanging plate 5, an input shaft 6, a lower box body 7, an output hanging plate 8, an output shaft 9, a ventilating cap 10, a pressing plate 11, a tertiary gear shaft 12, a secondary gear shaft 13, an output sealing cover 14, an output sealing cover 15, an output oil seal 16, an output end transparent cover 17, an input oil seal 18, an input end transparent cover 19, an input sealing cover 20, an input sealing cover 21, an oil receiving groove 22 and a lubricating channel.

Detailed Description

Fig. 1 to 9 are preferred embodiments of the present invention, and the present invention will be further described with reference to fig. 1 to 9.

As shown in figures 1-2, the gear box (hereinafter referred to as gear box) for the double-toothed roller screening crusher comprises a box body, wherein the box body is formed by vertically butting an upper box body 1 and a lower box body 6, and the upper box body 1 and the lower box body 6 are vertically butted and then fixed into a whole through a plurality of bolts on the periphery. Two hanging rings 3 are fixed at the top of the upper box body 1 at intervals, and the gear box can move conveniently through the hanging rings 3. A ventilation cap 9 (see fig. 3) is disposed at a middle position of the top of the upper box 1, and a shield 2 is sleeved outside the ventilation cap 9.

Referring to fig. 3 to 4, an input shaft 5 and an output shaft 8 are respectively led out from the front end face and the rear end face of the box body, in the gear box, the end face of the box body, from which the input end 5 is led out, is defined as the front face of the gear box, and the end face of the box body, from which the output end 8 is led out, is defined as the back face of the gear box. Be provided with input link plate 4 in the outer lane of input shaft 5, a plurality of fixed orificess have been seted up at input link plate 4's week, be provided with input link plate spigot joint outside input link plate 4's surface, a plurality of fixed orificess and input link plate spigot joint through input link plate 4 outer lane are fixed with outside driving motor's motor base (not drawn in the picture), make input shaft 5 and driving motor's motor shaft butt joint simultaneously, carry out the mode of fixing through input link plate 4 and motor base, the installation basis that traditional gear box need set up on ground has been left out, the structure has been simplified and installation space has been saved simultaneously.

A set of output hanging plates 7 are respectively arranged on the upper side and the lower side of the back face of the box body, each set of output hanging plates 7 comprises two output hanging plates arranged at intervals, the two output hanging plates 7 of each set are respectively positioned on the two sides of the back face of the box body, and a plurality of fixing holes are respectively formed in the surface of each output hanging plate 7. The interval forms the keyway between two sets of output link plates 7 from top to bottom, is provided with the outer tang of output link plate in output shaft 8's outer lane, realizes being connected of this gear box and working machine (double gear roller screening breaker, not drawn in the picture) through output link plate 7, output link plate outer tang and keyway: the gear box adopts a side-hanging installation mode, the outer spigot of the output hanging plate is matched and centered with the inner spigot of the working machine, the key groove is connected with the key groove of the working machine through the key block to assist installation, the input and the output of the gear box are kept to be in a horizontal position, and the output hanging plate 7 is connected with the working machine through the fixing hole and the bolt to realize butt joint of the gear box and the working machine. The installation mode avoids the process of manual alignment and adjustment of the output shaft of the gear box and the working machine shaft in the installation process by means of the outer spigot of the output hanging plate and the inner spigot of the working machine, the key block and the key groove, the installation is simple and convenient, the centering precision is high, and the installation mode is more suitable for underground operation of a coal mine.

As shown in fig. 5, a three-level parallel shaft transmission mode is adopted in the gear box, a secondary gear shaft 12 and a tertiary gear shaft 11 are sequentially arranged between the input shaft 5 and the output shaft 8 from the input shaft 5 to the output shaft 8, and transmission is realized between the input shaft 5, the secondary gear shaft 12, the tertiary gear shaft 11 and the output shaft 8 through gears which are sleeved on respective outer rings and meshed with each other. Bearings for supporting and lubricating are arranged at two ends of the input shaft 5, the secondary gear shaft 12, the tertiary gear shaft 11 and the output shaft 8 respectively, wherein the bearings at two ends of the input shaft 5 are tapered roller bearings, and the bearings at two ends of the secondary gear shaft 12, the tertiary gear shaft 11 and the output shaft 8 are self-aligning roller bearings.

Because the double-toothed roller screening crusher is in a strong vibration working state in the working process, in order to meet the strong vibration working condition of the double-toothed roller screening crusher, a double-key connection mode is adopted among the front input shaft 5, the secondary gear shaft 12 and the gear sleeved outside the front input shaft, the tertiary gear shaft 11 and the gear sleeved outside the tertiary gear shaft are in spline connection, the output shaft 8 and the output half coupler connected to the end portion are in spline connection, and the connection strength is improved. And pressing plates 10 are respectively fixed on the outer sides of the inner rings of the bearings at the two ends of the secondary gear shaft 12, the tertiary gear shaft 11 and the output shaft 8, so that the bearing inner rings are prevented from creeping due to vibration in the working process of the gear box. And an O-shaped ring with corresponding specification is arranged in an annular groove of the outer ring of each self-aligning roller bearing to prevent the outer ring of the bearing from creeping. The bearing capacity of the gear is improved by modifying the gear in a tooth direction and a drum shape.

Referring to fig. 7, an output end transparent cover 16 is arranged at an output port of an output shaft 8 of the gear box, two layers of output oil seals 15 are sequentially arranged on an inner ring of the output end transparent cover 16 from inside to outside, an output sealing cover 14 is arranged at the outer end of the output end transparent cover 16, an output sealing sleeve 13 is arranged on an inner ring of the output sealing cover 14, and the output sealing cover 14 and the output sealing sleeve 13 form a labyrinth sealing structure sleeved on an outer ring of the output shaft 8; with further reference to fig. 8, an input end transparent cover 18 is disposed at an input port of the input shaft 5 of the gear box, an input oil seal 17 is disposed on an inner ring of the input end transparent cover 18, an input gland 19 is disposed at an outer end of the input end transparent cover 18, an input seal cover 20 is disposed on an inner ring of the input gland 19, and the input gland 19 and the input seal cover 20 form a labyrinth seal structure sleeved on an outer ring of the input shaft 5. Therefore, in the gear box, a labyrinth seal and single-framework oil seal combined seal structure is arranged at the input shaft 5, and a labyrinth seal and double-framework oil seal combined seal structure is arranged at the output shaft 8, so that the gear box is particularly suitable for being used under the high-dust working condition, and oil seal bushings are adopted between the oil seals at the input shaft 5 and the output shaft 8 and between the shafts, so that on one hand, the oil seal bushings are subjected to surface nitriding and grinding treatment, and have higher hardness and wear resistance; on the other hand, after abrasion occurs after long-time use, only the oil seal bushing needs to be replaced without replacing the shaft, so that the maintenance is convenient, and the cost is low.

As shown in fig. 6 and 9, oil receiving grooves 21 are respectively arranged on the upper side and the lower side of each bearing of the gear box, the oil receiving grooves 21 are respectively arranged on the inner walls of the upper box body 1 and the lower box body 6, wherein the oil receiving groove 21 positioned on the inner wall of the upper box body 1 is provided with an upward opening, the oil receiving groove 21 positioned on the inner wall of the lower box body 6 is provided with a downward opening, the outer side of the oil receiving groove 21 is communicated with a lubricating channel 22, one end of the lubricating channel 22 is communicated with the oil receiving groove 21, the other end of the lubricating channel extends to the outer side of the corresponding bearing after the outer ring of the corresponding bearing transversely penetrates through the upper box body 1 or the lower box body 6, and then the lubricating channel 22 is bent towards one side of the bearing and is opened to the outer ring of the bearing. Through setting up the lubricated passageway 22 that connects oil groove 21 and intercommunication to connect oil groove 21 and bearing, lubricating oil in the gear box can guide to bearing department through connecting oil groove 21 and lubricated passageway 22, carries out lubricated cooling to the bearing, avoids the bearing to lead to inefficacy because of lubricated not enough.

The foregoing is directed to preferred embodiments of the present invention, other and further embodiments of the utility model may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow. However, any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention are within the protection scope of the technical solution of the present invention.

Claims (10)

1. The utility model provides a double gear roller screening is gear box for breaker, includes the box, draws forth input shaft (5) and output shaft (8) on the box surface, carries out the transmission through multistage gear shaft between input shaft (5) and output shaft (8), is provided with the bearing respectively at the both ends of input shaft (5), output shaft (8) and between the gear shaft, at its characterized in that: the inside lubricated unit that lubricates the bearing that is provided with of box, lubricated unit connects oil groove (21) and lubricated passageway (22) including connecing oil groove (21), connects oil groove (21) to set up on the box inner wall and lie in the one side that corresponds the bearing, lubricated passageway (22) one end with connect oil groove (21) intercommunication, the other end extends to the outside that corresponds the bearing after passing the box.

2. The gear box for the double-tooth roller screening crusher according to claim 1, wherein: the box body comprises an upper box body (1) and a lower box body (6) which are butted up and down, the upper side and the lower side of each bearing are respectively provided with one lubricating unit, and the lubricating units above and below the bearings are respectively arranged in the upper box body (1) and the lower box body (6).

3. A gear box for a double-tooth roller screening crusher according to claim 2, wherein: the lubricating unit is arranged in the upper box body (1), and an oil receiving groove (21) in the lubricating unit is provided with an upward opening; and the lubricating unit is arranged in the lower box body (6), and an oil receiving groove (21) in the lubricating unit is provided with a downward opening.

4. The gear box for the double-tooth roller screening crusher according to claim 1, wherein: the gear shafts comprise a secondary gear shaft (12) and a tertiary gear shaft (11), and the secondary gear shaft (12) and the tertiary gear shaft (11) are sequentially arranged between the input shaft (5) and the output shaft (8) from the input shaft (5) to the output shaft (8).

5. The gear box for the double-tooth roller screening crusher according to claim 1, wherein: an input port and an output port are respectively arranged on the front end face and the rear end face of the box body, an input shaft (5) and an output shaft (8) are respectively led out from the input port and the output port, and an input sealing assembly and an output sealing assembly are respectively arranged at the input port and the output port.

6. A gearbox for a double-tooth roller screening crusher according to claim 5, characterized in that: the output sealing assembly comprises an output end labyrinth seal and an output oil seal (15), an output end through cover (16) is arranged at the output end, two layers of output oil seals (15) are sequentially arranged on the inner ring of the output end through cover (16) from inside to outside, an output sealing cover (14) is arranged at the outer end of the output end through cover (16), an output sealing sleeve (13) is arranged on the inner ring of the output sealing cover (14), and the output sealing cover (14) and the output sealing sleeve (13) form an output end labyrinth seal sleeved on the outer ring of the output shaft (8); the excircle of the output sealing cover (14) is an output hanging plate outer spigot;

the input sealing assembly comprises an input end labyrinth seal and an input oil seal (17), an input end transparent cover (18) is arranged at an input end port, the input oil seal (17) is arranged at an inner ring of the input end transparent cover (18), an input sealing sleeve (19) is arranged at the outer end of the input end transparent cover (18), an input sealing cover (20) is arranged at the inner ring of the input sealing sleeve (19), and the input sealing sleeve (19) and the input sealing cover (20) form an input end labyrinth seal which is sleeved on an outer ring of the input shaft (5).

7. The gear box for the double-tooth roller screening crusher according to claim 1, wherein: and a pressure plate (10) is fixed on the outer side of the bearing.

8. The gearbox for a double-toothed roller screening crusher according to claim 1, characterized in that: the top of the box body is fixed with two hanging rings (3) at intervals, a ventilation cap (9) is arranged between the two hanging rings (3), and a protective cover (2) is sleeved outside the ventilation cap (9).

9. The gear box for the double-tooth roller screening crusher according to claim 1, wherein: an input hanging plate (4) is arranged on the outer ring of the input shaft (5), a plurality of fixing holes are formed in the periphery of the input hanging plate (4), and an input hanging plate outer spigot is arranged on the surface of the input hanging plate (4).

10. The gear box for the double-tooth roller screening crusher according to claim 1, wherein: a set of output hanging plate (7) is arranged on the upper side and the lower side of the end face of the box body leading-out output shaft (8) respectively, each set of output hanging plate (7) comprises two output hanging plates arranged at intervals, the two output hanging plates (7) of each set are located on the two sides of the end face of the box body respectively, a plurality of fixing holes are formed in the surface of each output hanging plate (7), and key grooves are formed between the upper output hanging plate and the lower output hanging plate (7) at intervals.

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