CN211636744U

CN211636744U - Vertical crusher safe in utilization

Info

Publication number: CN211636744U
Application number: CN201922450474.7U
Authority: CN
Inventors: 谭国鸿; 闫三
Original assignee: Henan Yurui Machinery Manufacturing Co ltd
Current assignee: Henan Yurui Machinery Manufacturing Co ltd
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2020-10-09
Anticipated expiration: 2029-12-30

Abstract

The utility model relates to a vertical crusher designs technical field, concretely relates to vertical crusher safe in utilization, through setting up the vertical crusher who comprises upper bearing, upper bearing cap, first backplate, second backplate and first connecting seat sealing device, by lower bearing, lower bearing cap, third backplate, the vertical crusher who comprises second connecting seat and sealing washer sealing device down, can be in the normal rotation of guarantee pivot, seal the lubricating grease that pours into crusher pivot lower part into, reduce the risk of its oil leak by a wide margin. The problem of current vertical crusher have the defect in the design, need specific dextrorotation external screw thread structure when the sealed of pivot, leak the volume can appear sealedly and increase after the part installation is anti-back, and does not set up pressure-adjustable mechanism, the pipe pressure that leads to the different vertical crushers of input has the difference, has cracked risk of oil pipeline, can't realize the safety in production is solved.

Description

Vertical crusher safe in utilization

Technical Field

The utility model relates to a vertical crusher designs technical field, concretely relates to is a vertical crusher safe in utilization.

Background

The vertical crusher is mainly a vertical impact crusher and is mainly applied to the sand making industry, a belt is driven by a power device to rotate a rotating shaft of the vertical crusher, so that materials in a crushing cavity in the vertical crusher are crushed, and lubricating oil or lubricating grease is required to be added to cool and reduce abrasion among components in order to ensure that the rotating shaft works stably in use.

There is the defect in the design of current vertical breaker, chinese patent as publication number 209287476U discloses a vertical impact breaker and shafting rotary seal structure thereof, although also can realize the sealed of countershaft, but need specific dextrorotation external screw thread structure during its installation, can appear sealedly and increase the problem of leaking the volume after the part installation is reversed, the degree of difficulty of on-the-spot erection equipment has been increased, the oiling device of current vertical breaker is many directly through the grease squirt to upper bearing and/or lower bearing oiling simultaneously, wherein can not set up pressure regulating mechanism, the pipe pressure that leads to the different vertical breakers of input has the difference, there is cracked risk of oil pipeline, can't realize safe production.

SUMMERY OF THE UTILITY MODEL

The utility model discloses there is the defect in the design to current vertical crusher, needs specific dextrorotation external screw thread structure when the sealed of pivot, and the leakage quantity can appear sealedly and increase after the part installation is anti-, and does not set up adjustable pressure mechanism, and the pipe pressure that leads to the different vertical crushers of input has the difference, has the cracked risk of oil pipeline, can't realize the problem of safety in production, provides a vertical crusher safe in utilization.

The technical scheme is that the vertical crusher safe to use comprises a power device, a belt and a crushing mechanism, wherein the output end of the power device is connected with the belt, the power input end of the crushing mechanism is connected with the belt, and an upper sealing device, a lower sealing device and a lower oil injection device are arranged in the crushing mechanism. Go up sealing device and include the upper bearing, the upper bearing lid, first backplate, second backplate and first connecting seat, go up the bearing, the upper bearing lid, first backplate, second backplate and first connecting seat all overlap the upper portion at the breaker pivot, the upper bearing lid is located on the periphery of upper bearing, and contact with last bearing, second backplate covers upper surface with the upper bearing and is connected, second backplate and upper bearing upper surface contact, be equipped with first lubricated chamber between second backplate and the upper bearing, first backplate and upper bearing cover lower surface connection, first backplate and upper bearing lower surface contact, first connecting seat is connected with the bottom of first backplate, first backplate and upper bearing contact, first connecting seat, be equipped with the lubricated chamber of second between first backplate and the upper bearing, the lubricated intracavity of second and the first lubricating cavity has been annotated lubricating grease. The lower sealing device comprises a lower bearing, a lower bearing cover, a third protective plate, a second connecting seat and a sealing ring, the lower bearing cover, the third protective plate, the second connecting seat and the sealing ring are all sleeved on the lower part of the rotating shaft of the crusher, the lower bearing cover is arranged on the periphery of the lower bearing and is contacted with the lower bearing, the third protective plate is connected with the upper surface of the lower bearing cover and is contacted with the upper surface of the lower bearing, a third lubricating cavity is arranged between the third protective plate and the lower bearing, the sealing ring is arranged at the top of the third lubricating cavity, the lower part of the second connecting seat is connected with the upper surface of the third protective plate, the upper part of the second connecting seat is abutted with the shaft sleeve, the lower oil injection device comprises an oil injector, a first oil delivery pipe, a pressure-adjustable bent pipe and a second oil delivery pipe, the oil injector is arranged at the lower part of the vertical crusher, the oil outlet end of the oil injector is connected with one end of the, the oil outlet end of the pressure-adjustable bent pipe is connected with one end of a second oil conveying pipe, a pressure-adjustable mechanism is arranged in the pressure-adjustable bent pipe, the other end of the second oil conveying pipe is connected with an oil injection port of a lower bearing, and the lower bearing is sleeved on the lower portion of a rotating shaft of the crusher.

Furthermore, be provided with the oiling mouth on the second backplate, oiling mouth and first lubricated chamber intercommunication, and be provided with the end cap that can open and shut on the oiling mouth, the second backplate covers the upper surface through second fixing bolt and upper bearing and can dismantle and be connected, and in second fixing bolt passed the second backplate and inserted the upper bearing cap, first backplate passed first backplate and can dismantle with the upper bearing cap lower surface through first fixing bolt and be connected, and first fixing bolt passes first backplate and inserts in the upper bearing cap.

Optionally, the contact surface of the first protection plate and the first connecting seat is provided with a protrusion, the contact surface of the first connecting seat and the first protection plate is provided with a protrusion matched with the first protection plate, the first connecting seat is connected with the first protection plate through the protrusion matched with the first protection plate, the protrusion of the first protection plate is provided with a thread, the protrusion matched with the first connecting seat is also provided with a thread, and the first connecting seat is in threaded connection with the first protection plate.

Optionally, a fourth protective plate is arranged on the periphery of the lower bearing cover, the lower bearing cover is detachably connected with the fourth protective plate through a third fixing bolt, the third fixing bolt penetrates through the upper surface of the lower bearing cover and is inserted into the fourth protective plate, a fourth lubricating cavity is formed between the lower bearing and the rotating shaft of the crusher, lubricating grease is injected into the fourth lubricating cavity and the third lubricating cavity, an oil outlet is formed in the bottom of the lower bearing cover and is communicated with the fourth lubricating cavity, an openable plug is arranged on the oil outlet, the third protective plate is detachably connected with the lower bearing cover through the fourth fixing bolt, and the fourth fixing bolt penetrates through the third protective plate and is inserted into the lower bearing cover.

Furthermore, the contact surface of third backplate and second connecting seat is provided with the arch, and the contact surface of second connecting seat and third backplate is provided with the arch of looks adaptation, and the second connecting seat is connected with the third backplate through the arch of looks adaptation, is provided with the screw thread in the arch of third backplate, also is provided with the screw thread in the arch of second connecting seat looks adaptation, second connecting seat and third backplate threaded connection.

Optionally, but pressure regulating mechanism includes solid fixed ring in proper order along the interior material flow direction of adjustable pressure elbow, the pressure regulating ball, pressure regulating spring and movable part, gu fixed ring, the pressure regulating ball, movable part and pressure regulating spring all are located adjustable pressure elbow, and gu fixed ring, the pressure regulating ball, movable part and pressure regulating spring are close to defeated oil pipe of second, one section that adjustable pressure elbow is close to defeated oil pipe of second is provided with interior screw thread section, movable part's periphery and interior screw thread section threaded connection, and movable part can remove on the interior screw thread section, movable part is the loop configuration, be equipped with oil channel in the middle of the movable part, the one end that movable part is close to defeated oil pipe of second is provided with the regulation recess, pressure regulating spring one end supports the one end of keeping away from defeated oil pipe of second at.

Optionally, an oil inlet channel is arranged in the middle of the fixing ring, the lower portion of the pressure regulating ball abuts against the inner wall of the oil inlet channel, and the length of the pressure-adjustable elbow connected with the first oil conveying pipe is shorter than the length of the pressure-adjustable elbow connected with the second oil conveying pipe.

The utility model has the advantages that at least one of the following advantages is included;

1. through setting up the sealing device on the vertical crusher who comprises upper bearing, upper bearing cover, first backplate, second backplate and first connecting seat, sealing device under the vertical crusher who comprises lower bearing, lower bearing cover, third backplate, second connecting seat and sealing washer can seal the lubricating grease that pours into the breaker pivot lower part into when the guarantee pivot is normal rotatory, reduces the risk of its oil leak by a wide margin.

2. All parts are connected by adopting a fixing bolt or other detachable connection modes, so that the maintenance difficulty of subsequent equipment is reduced, and the installation and the use of field workers are facilitated.

3. Through set up adjustable pressure mechanism in adjustable pressure return bend, adjust adjustable mechanism according to the length of different vertical breaker oil injection pipelines for the raw materials that get into in first oil pipeline and the second oil pipeline can provide balanced pipe pressure, reduces the cracked risk of oil pipeline.

4. The problem of current vertical crusher have the defect in the design, need specific dextrorotation external screw thread structure when the sealed of pivot, leak the volume can appear sealedly and increase after the part installation is anti-back, and does not set up pressure-adjustable mechanism, the pipe pressure that leads to the different vertical crushers of input has the difference, has cracked risk of oil pipeline, can't realize the safety in production is solved.

Drawings

FIG. 1 is a schematic view of a vertical crusher that is safe to use;

FIG. 2 is an enlarged view of the area A in FIG. 1

FIG. 3 is an enlarged view of the area B in FIG. 1;

FIG. 4 is a schematic structural view of an oiling device at the lower part of the vertical crusher;

FIG. 5 is a schematic view of a pressure-adjustable elbow;

labeled as: the device comprises a power device 1, a belt 2, a crushing mechanism 3, a fourth guard plate 4, a lower bearing cover 5, a third guard plate 6, a fourth fixing bolt 7, a sealing ring 8, a shaft sleeve 9, a groove 10, a second connecting seat 11, a third fixing bolt 12, a crusher rotating shaft 13, a first connecting seat 14, a first guard plate 15, a first fixing bolt 16, an upper bearing 17, a second fixing bolt 18, a second guard plate 19, an upper bearing cover 20, a lower bearing 21, an oil injector 22, a first oil delivery pipe 25, a pressure-adjustable bent pipe 26, a second oil delivery pipe 27, a fixing ring 28, a pressure-adjusting ball 29, an oil inlet channel 30, a movable part 31, an oil outlet channel 32, an internal thread section 33 and a pressure-adjusting spring 34.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the scope of the invention.

As shown in fig. 1 to 5, a vertical crusher with safe use comprises a power device, a belt and a crushing mechanism, wherein the output end of the power device is connected with the belt, the power input end of the crushing mechanism is connected with the belt, and an upper sealing device, a lower sealing device and a lower oil injection device are arranged in the crushing mechanism. Go up sealing device and include the upper bearing, the upper bearing lid, first backplate, second backplate and first connecting seat, go up the bearing, the upper bearing lid, first backplate, second backplate and first connecting seat all overlap the upper portion at the breaker pivot, the upper bearing lid is located on the periphery of upper bearing, and contact with last bearing, second backplate covers upper surface with the upper bearing and is connected, second backplate and upper bearing upper surface contact, be equipped with first lubricated chamber between second backplate and the upper bearing, first backplate and upper bearing cover lower surface connection, first backplate and upper bearing lower surface contact, first connecting seat is connected with the bottom of first backplate, first backplate and upper bearing contact, first connecting seat, be equipped with the lubricated chamber of second between first backplate and the upper bearing, the lubricated intracavity of second and the first lubricating cavity has been annotated lubricating grease. The lower sealing device comprises a lower bearing, a lower bearing cover, a third protective plate, a second connecting seat and a sealing ring, the lower bearing cover, the third protective plate, the second connecting seat and the sealing ring are all sleeved on the lower part of the rotating shaft of the crusher, the lower bearing cover is arranged on the periphery of the lower bearing and is contacted with the lower bearing, the third protective plate is connected with the upper surface of the lower bearing cover and is contacted with the upper surface of the lower bearing, a third lubricating cavity is arranged between the third protective plate and the lower bearing, the sealing ring is arranged at the top of the third lubricating cavity, the lower part of the second connecting seat is connected with the upper surface of the third protective plate, the upper part of the second connecting seat is abutted with the shaft sleeve, the lower oil injection device comprises an oil injector, a first oil delivery pipe, a pressure-adjustable bent pipe and a second oil delivery pipe, the oil injector is arranged at the lower part of the vertical crusher, the oil outlet end of the oil injector is connected with one end of the, the oil outlet end of the pressure-adjustable bent pipe is connected with one end of a second oil conveying pipe, a pressure-adjustable mechanism is arranged in the pressure-adjustable bent pipe, the other end of the second oil conveying pipe is connected with an oil injection port of a lower bearing, and the lower bearing is sleeved on the lower portion of a rotating shaft of the crusher.

In use, through setting up the vertical crusher who comprises upper bearing, upper bearing cover, first backplate, second backplate and first connecting seat and go up sealing device, the vertical crusher who comprises lower bearing, lower bearing cover, third backplate, second connecting seat and sealing washer is sealing device down, can seal the lubricating grease that pours into the breaker pivot lower part into when guaranteeing the pivot normal rotation, reduces the risk of its oil leak by a wide margin. All parts are connected by adopting a fixing bolt or other detachable connection modes, so that the maintenance difficulty of subsequent equipment is reduced, and the installation and the use of field workers are facilitated. Through set up adjustable pressure mechanism in adjustable pressure return bend, adjust adjustable mechanism according to the length of different vertical breaker oil injection pipelines for the raw materials that get into in first oil pipeline and the second oil pipeline can provide balanced pipe pressure, reduces the cracked risk of oil pipeline. The problem of current vertical crusher have the defect in the design, need specific dextrorotation external screw thread structure when the sealed of pivot, leak the volume can appear sealedly and increase after the part installation is anti-back, and does not set up pressure-adjustable mechanism, the pipe pressure that leads to the different vertical crushers of input has the difference, has cracked risk of oil pipeline, can't realize the safety in production is solved.

Because the breaker pivot is long-pending hot more in the lower part, can aggravate volatilizing of third lubricated intracavity lubricating oil or lubricating grease, consequently set up the sealing washer at third lubricated chamber top, can improve whole leakproofness, delay scattering and disappearing of lubricating oil or lubricating grease, it is sealed to the pivot to have solved current vertical crusher, but need specific dextrorotation external screw thread structure during its installation, can appear sealedly and increase the problem of leaking the volume after the part installation is reversed, the problem of the degree of difficulty of field installation equipment has been increased.

In this embodiment, the second guard plate 19 is provided with an oil filling port, the oil filling port is communicated with the first lubricating cavity, and the oil filling port is provided with a plug capable of being opened and closed.

In use, a person skilled in the art or a field worker can replenish the lubricating grease or oil required by the equipment from the oil filler, and as the crusher rotating shaft rotates in the upper bearing, the lubricating grease or oil flows from the first lubricating cavity into the second lubricating cavity below the upper bearing, so as to lubricate the upper part of the crusher rotating shaft.

In this embodiment, a connection mode between the first guard plate and the upper bearing cover and between the second guard plate and the upper bearing cover is disclosed, in which the second guard plate 19 is detachably connected to the upper surface of the upper bearing cover 20 through a second fixing bolt 18, and the second fixing bolt 18 penetrates through the second guard plate 19 and is inserted into the upper bearing cover 20. The first guard plate 15 is detachably connected with the lower surface of the upper bearing cover 20 through a first fixing bolt 16, and the first fixing bolt 16 penetrates through the first guard plate 15 and is inserted into the upper bearing cover 20.

The purpose of the design is that all parts are connected by adopting a fixing bolt or other detachable connection modes, so that the maintenance difficulty of subsequent equipment is reduced, and the installation and the use of field workers are facilitated.

In this embodiment, the contact surface of the first protection plate 15 and the first connection seat 14 is provided with a protrusion, the contact surface of the first connection seat 14 and the first protection plate 15 is provided with a protrusion, and the first connection seat 14 is connected with the first protection plate 15 through the protrusion. The protrusion of the first guard plate 15 is provided with threads, the protrusion matched with the first connecting seat 14 is also provided with threads, and the first connecting seat 14 is in threaded connection with the first guard plate 15.

The purpose of design like this lies in, through the first adapter that sets up and adopt screw connection or the time between the meshing all can realize the sealed to the lubricated chamber of second, in order further to improve equipment's factor of safety, can lean on first adapter lower part on the axle sleeve of breaker pivot certainly.

In this embodiment, a fourth lubrication cavity is provided between the lower bearing cover 5, the lower bearing 21 and the crusher rotating shaft 13, and grease is injected into the fourth lubrication cavity and the third lubrication cavity. An oil outlet is formed in the bottom of the lower bearing cover 5 and communicated with the fourth lubricating cavity, and a plug capable of being opened and closed is arranged on the oil outlet.

When the lubricating grease or the lubricating oil is added to the lower part of the vertical crusher, the lubricating grease or the lubricating oil needs to be injected from the lower bearing through the oil injection mechanism and then respectively enters the third lubricating cavity and the fourth lubricating cavity, so that the upper part of the rotating shaft of the crusher is lubricated.

Meanwhile, the plug capable of being opened and closed is arranged at the oil outlet, so that a technician or a field worker in the field can open the plug to discharge or replace redundant lubricating grease or lubricating oil.

In this embodiment, the third guard plate 6 is detachably connected to the lower bearing cap 5 by a fourth fixing bolt 7, and the fourth fixing bolt 7 passes through the third guard plate 6 and is inserted into the lower bearing cap 5.

In this embodiment, the contact surface of the third protection plate 6 and the second connection seat 11 is provided with a protrusion, the contact surface of the second connection seat 11 and the third protection plate 6 is provided with a protrusion in a matching manner, and the second connection seat 11 is connected with the third protection plate 6 through the protrusion in a matching manner. The bulge of the third guard plate 6 is provided with threads, the bulge matched with the second connecting seat 11 is also provided with threads, and the second connecting seat 11 is in threaded connection with the third guard plate 6.

The purpose of design like this lies in, through the second connecting seat that sets up and adopt screw connection or the time between the meshing all can realize the sealed to the third lubricated chamber, certainly for further improve equipment's factor of safety, can lean on the second connecting seat lower part on the axle sleeve 9 of breaker pivot.

Meanwhile, in order to further improve the tightness of the connection between the second connecting seat and the shaft sleeve 9, a groove 10 may be formed on a contact surface between the shaft sleeve 9 and the second connecting seat, and the top of the second connecting seat is abutted into the groove 10.

The embodiment discloses a concrete structure of a pressure-adjustable mechanism, wherein the pressure-adjustable mechanism sequentially comprises a fixed ring 28, a pressure-adjusting ball 29, a pressure-adjusting spring 34 and a movable part 31 along the material flow direction in a pressure-adjustable bent pipe 26, the fixed ring 28, the pressure-adjusting ball 29, the movable part 31 and the pressure-adjusting spring 34 are all positioned in the pressure-adjustable bent pipe 26, and the fixed ring 28, the pressure-adjusting ball 29, the movable part 31 and the pressure-adjusting spring 34 are close to a second oil delivery pipe 27. The section of the pressure-adjustable elbow 26 close to the second oil pipeline 27 is provided with an internal thread section 33, the outer periphery of the movable part 31 is in threaded connection with the internal thread section 33, and the movable part 31 can move on the internal thread section 33. The movable part 31 is of an annular structure, an oil outlet channel 32 is arranged in the middle of the movable part 31, an adjusting groove 35 is arranged at one end, close to the second oil conveying pipe 27, of the movable part 31, one end of a pressure adjusting spring 34 abuts against one end, far away from the second oil conveying pipe 27, of the movable part 31, and the other end of the pressure adjusting spring 34 abuts against the pressure adjusting ball 29. An oil inlet channel 30 is arranged in the middle of the fixing ring 28, and the lower part of the pressure regulating ball 29 is abutted against the inner wall of the oil inlet channel 30.

When the pressure-adjustable oil pipe is used, raw materials to be added such as lubricating grease or lubricating oil enter the first oil conveying pipe from the oil injector firstly and then enter the pressure-adjustable bent pipe, the raw materials are contacted with the fixed ring firstly, the oil inlet channel is arranged in the fixed ring, and the pressure-adjustable ball is abutted against the inner wall of the oil inlet channel, so that the raw materials jack the pressure-adjustable ball upwards, and then the raw materials enter the second oil conveying pipe from the oil outlet channel positioned on the movable part to finish pressure adjustment.

Because the movable part can reciprocate on internal thread section, the pipe pressure of looks adaptation can be set up according to the actual length of pipeline to the technical staff in the art, if the pipe pressure reduces, then can move movable part downwards through the instrument, increases the pressure that the pressure regulating spring was to the pressure ball for need the grease squirt to improve bigger pressure, just can have sufficient raw materials to pass through, otherwise then can move movable part upwards.

It should be pointed out that first defeated oil pipe and second defeated oil pipe in this scheme and adjustable pressure return bend all are detachable connection, can use threaded connection or flange joint, and simultaneously in order to realize that pipeline pressure is adjustable, suitable instrument that the skilled in the art personnel need use cooperates like pipe pressure sensor.

In this embodiment, the length of the connection between the pressure-adjustable elbow 26 and the first delivery line 25 is shorter than the length of the connection between the pressure-adjustable elbow 26 and the second delivery line 27.

The purpose that designs like this, through increasing the pipe length that adjustable pressure return bend and second defeated oil pipe are connected, can be convenient for more set up adjustable mechanism, the distance that internal thread section reciprocated through movable part simultaneously also increases thereupon to can satisfy more pipe pressure requirements.

The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a vertical crusher safe in utilization, includes power device (1), belt (2) and crushing mechanism (3), the output of power device (1) links to each other with belt (2), the power input end of crushing mechanism (3) links to each other its characterized in that with belt (2): an upper sealing device, a lower sealing device and a lower oiling device are arranged in the crushing mechanism (3);

the upper sealing device comprises an upper bearing (17), an upper bearing cover (20), a first protection plate (15), a second protection plate (19) and a first connecting seat (14), wherein the upper bearing (17), the upper bearing cover (20), the first protection plate (15), the second protection plate (19) and the first connecting seat (14) are all sleeved on the upper part of the crusher rotating shaft (13), the upper bearing cover (20) is arranged on the periphery of the upper bearing (17) and is in contact with the upper bearing (17), the second protection plate (19) is connected with the upper surface of the upper bearing cover (20), the second protection plate (19) is in contact with the upper surface of the upper bearing (17), a first lubricating cavity is arranged between the second protection plate (19) and the upper bearing (17), the first protection plate (15) is connected with the lower surface of the upper bearing cover (20), the first protection plate (15) is in contact with the lower surface of the upper bearing (17), the first connecting seat (14) is connected with the bottom of the first protection plate (15), the first protection plate (15) is in contact with the upper bearing (17), a second lubricating cavity is arranged among the first connecting seat (14), the first protection plate (15) and the upper bearing (17), and lubricating grease is injected into the second lubricating cavity and the first lubricating cavity;

the lower sealing device comprises a lower bearing (21), a lower bearing cover (5), a third guard plate (6), a second connecting seat (11) and a sealing ring (8), the lower bearing (21), the lower bearing cover (5), the third guard plate (6), the second connecting seat (11) and the sealing ring (8) are all sleeved on the lower part of the crusher rotating shaft (13), the lower bearing cover (5) is arranged on the periphery of the lower bearing (21), and is contacted with the lower bearing (21), the third guard plate (6) is connected with the upper surface of the lower bearing cover (5), the third guard plate (6) is contacted with the upper surface of the lower bearing (21), a third lubricating cavity is arranged between the third guard plate (6) and the lower bearing (21), the sealing ring (8) is positioned at the top of the third lubricating cavity, the lower part of the second connecting seat (11) is connected with the upper surface of the third guard plate (6), and the upper part of the second connecting seat (11) is abutted with the shaft sleeve (9);

lower part oiling device includes the defeated oil pipe of grease squirt (22), first defeated oil pipe (25), adjustable pressure return bend (26) and second (27), the lower part of broken mechanism (3) is located in grease squirt (22), and the oil outlet end and the defeated oil pipe (25) one end of first defeated oil pipe (22) are connected, the other end and the oil feed end of adjustable pressure return bend (26) of first defeated oil pipe (25) are connected, the oil outlet end of adjustable pressure return bend (26) is connected with the one end of defeated oil pipe (27) of second, is provided with adjustable pressure mechanism in adjustable pressure return bend (26), the other end and the oiling mouth of lower bearing (21) of defeated oil pipe (27) of second are connected, bearing (21) cover is in the lower part of breaker pivot (13) down.

2. A safety in use vertical crusher as claimed in claim 1, wherein: the oil injection hole is formed in the second protection plate (19), the oil injection hole is communicated with the first lubricating cavity, a plug capable of being opened and closed is arranged on the oil injection hole, the second protection plate (19) is detachably connected with the upper surface of the upper bearing cover (20) through a second fixing bolt (18), the second fixing bolt (18) penetrates through the second protection plate (19) and is inserted into the upper bearing cover (20), the first protection plate (15) is detachably connected with the lower surface of the upper bearing cover (20) through a first fixing bolt (16), and the first fixing bolt (16) penetrates through the first protection plate (15) and is inserted into the upper bearing cover (20).

3. A safety in use vertical crusher as claimed in claim 2, wherein: the contact surface of first backplate (15) and first connecting seat (14) is provided with the arch, first connecting seat (14) are provided with the arch of looks adaptation with the contact surface of first backplate (15), and first connecting seat (14) are connected with first backplate (15) through the arch of looks adaptation, are provided with the screw thread in the arch of first backplate (15), also be provided with the screw thread in the arch of first connecting seat (14) looks adaptation, first connecting seat (14) and first backplate (15) threaded connection.

4. A safety in use vertical crusher as claimed in claim 1, wherein: the novel crusher is characterized in that a fourth protection plate (4) is arranged on the periphery of the lower bearing cover (5), the lower bearing cover (5) is detachably connected with the fourth protection plate (4) through a third fixing bolt (12), the third fixing bolt (12) penetrates through the upper surface of the lower bearing cover (5) and is inserted into the fourth protection plate (4), a fourth lubricating cavity is formed among the lower bearing cover (5), the lower bearing (21) and the crusher rotating shaft (13), lubricating grease is injected into the fourth lubricating cavity and the third lubricating cavity, an oil outlet is formed in the bottom of the lower bearing cover (5), the oil outlet is communicated with the fourth lubricating cavity, a plug capable of being opened and closed is arranged on the oil outlet, the third protection plate (6) is detachably connected with the lower bearing cover (5) through a fourth fixing bolt (7), and the fourth fixing bolt (7) penetrates through the third protection plate (6) and is inserted into the lower bearing cover (5).

5. A safety in use vertical crusher as claimed in claim 4, wherein: the contact surface of third backplate (6) and second connecting seat (11) is provided with the arch, the contact surface of second connecting seat (11) and third backplate (6) is provided with the arch of looks adaptation, and second connecting seat (11) are connected with third backplate (6) through the arch of looks adaptation, are provided with the screw thread in the arch of third backplate (6), also be provided with the screw thread in the arch of second connecting seat (11) looks adaptation, second connecting seat (11) and third backplate (6) threaded connection.

6. A safety in use vertical crusher as claimed in claim 1, wherein: the pressure-adjustable mechanism comprises a fixing ring (28), a pressure-adjusting ball (29), a pressure-adjusting spring (34) and a movable part (31) in sequence along the material flowing direction in the pressure-adjustable elbow pipe (26), the fixing ring (28), the pressure-adjusting ball (29), the movable part (31) and the pressure-adjusting spring (34) are all located in the pressure-adjustable elbow pipe (26), the fixing ring (28), the pressure-adjusting ball (29), the movable part (31) and the pressure-adjusting spring (34) are close to the second oil conveying pipe (27), one section of the pressure-adjustable elbow pipe (26) close to the second oil conveying pipe (27) is provided with an internal thread section (33), the periphery of the movable part (31) is in threaded connection with the internal thread section (33), the movable part (31) can move on the internal thread section (33), the movable part (31) is of an annular structure, an oil outlet channel (32) is arranged in the middle of the movable part (31), one end of the movable part (31) close to the second oil, one end of the pressure regulating spring (34) is abutted against one end, far away from the second oil conveying pipe (27), of the movable part (31), and the other end of the pressure regulating spring (34) is abutted against the pressure regulating ball (29).

7. A safety in use vertical crusher as claimed in claim 6, wherein: an oil inlet channel (30) is arranged in the middle of the fixing ring (28), the lower portion of the pressure regulating ball (29) is abutted to the inner wall of the oil inlet channel (30), and one section of length of the pressure regulating elbow (26) connected with the first oil conveying pipe (25) is shorter than one section of length of the pressure regulating elbow (26) connected with the second oil conveying pipe (27).