CN209812205U - Hydraulic drive disassembling device for bearing - Google Patents
Hydraulic drive disassembling device for bearing Download PDFInfo
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- CN209812205U CN209812205U CN201920620575.1U CN201920620575U CN209812205U CN 209812205 U CN209812205 U CN 209812205U CN 201920620575 U CN201920620575 U CN 201920620575U CN 209812205 U CN209812205 U CN 209812205U
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Abstract
The utility model discloses a ware is torn open out in surging of bearing. The main characteristics are that: the center of the round top plate of the upper end integrated structure of the disassembling head is provided with an upward convex round boss of the integrated structure, the center of the round boss is provided with an upward convex limiting cylinder of the integrated structure, the limiting cylinder, the centers of the round boss and the round top plate are provided with guide holes, a hydraulic piston rod of an ejection bearing is arranged in each guide hole when the bearing arranged on a bearing position journal at the upper end of a transmission shaft is disassembled, the lower end of the disassembling head is provided with a round bottom plate of the integrated structure and used for disassembling the ejection bearing when the bearing is disassembled, the left end of the round bottom plate is provided with a lower opening groove used for moving the transmission shaft into the center of the round bottom plate when the bearing is disassembled, and the left lower end of the cylinder wall of the disassembling head is provided with a measuring opening groove used for moving the bearing. The utility model discloses can be simply, light, will install the bearing that has worn and torn on the bearing position journal of transmission shaft upper end fast and pull out, alleviate intensity of labour, improve work efficiency.
Description
Technical Field
The utility model relates to a bearing is torn open instrument technical field, in particular to ware is torn open out in surging of bearing.
Background
In the maintenance of mechanical equipment, worn bearings must be replaced, and a professional maintenance manufacturer replaces the bearings by pressing the worn bearings out of the bearing position journal of the transmission shaft by using a hydraulic machine and pressing a new bearing into the bearing position journal of the transmission shaft by using the hydraulic machine, however, a general manufacturer does not have the condition of the professional maintenance manufacturer, and only can use three claws to push the worn bearings out of the bearing position journal of the transmission shaft when replacing the bearings, and when the three claws are used for pushing out the worn bearings on the bearing position journal of the transmission shaft, the three claws are not easy to simultaneously clamp the worn bearings on one end surface of the inner ring of the worn bearings, and the three claws are used for pushing out the worn bearings on the bearing position journal of the transmission shaft, so that the operation is troublesome, labor-consuming, slow and low in working efficiency.
The bearing extractor combining the jack and the three claws is adopted in the market, the problem that the three claws are not easy to simultaneously clamp on one end face of an inner ring of a worn bearing exists, operation is troublesome, the problem of labor waste when an operating handle of the jack is shaken exists, and the problem that the bearing which is worn on a bearing position shaft neck of a transmission shaft is detached by the bearing extractor combining the jack and the three claws also has the problems of operation is troublesome, labor waste, low speed and low working efficiency.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: the hydraulic dismounting device for the bearing can simply, easily and quickly dismount the worn bearing arranged on the bearing position journal at the upper end of the transmission shaft, reduces labor intensity and improves working efficiency.
In order to solve the technical problem, the utility model discloses a technical scheme is: comprises a cylinder body, a A, O-shaped rubber sealing ring A of a high-pressure oil pipe, a nozzle A, a sealing rubber gasket, a disassembly head, a hexagon head bolt, a piston rod, a bowl-shaped rubber sealing ring A, O-shaped rubber sealing ring B, a bowl-shaped rubber sealing ring B, a nozzle B, a high-pressure oil pipe B, an inner hexagon bolt, a nozzle C, a nozzle D, a manual reversing valve, a nozzle E, a high-pressure oil pipe C, a high-pressure oil pipe D and a nozzle F, wherein the center of a dome plate of an integrated structure at the upper end of the disassembly head is provided with an upward convex round boss of an integrated structure, the center of the round boss is provided with an upward convex limiting cylinder of an integrated structure, the centers of the limiting cylinder, the round boss and the dome plate are provided with a guide hole, the piston rod for ejecting a bearing when the bearing arranged on a bearing position journal of a hydraulic drive shaft at the upper end of the drive shaft is disassembled from the guide hole, the lower end of the disassembly head is provided, the left end of the round bottom plate is provided with a lower opening groove used for moving the transmission shaft into the center of the round bottom plate when the bearing is detached, and the left lower end of the cylinder wall of the detaching head is provided with a measuring opening groove used for moving the bearing into the center of the hollow space of the detaching head when the bearing is detached.
The outer surface of the piston rod is movably matched with the guide hole in the center of the limiting cylinder, the round boss and the dome plate at the upper end of the detaching head, the outer surface of the piston rod is respectively in sealing fit with inner holes of the O-shaped rubber sealing rings A in the two annular grooves in the upper hole wall surface and the lower hole wall surface of the guide hole, and when the piston rod moves downwards, the lower end of the piston rod extends out of the inner space of the detaching head.
The upper end of the piston rod is provided with a piston of an integrated structure, and the upper end of the piston rod and the piston are arranged in a central circular hole of the cylinder body.
The lower extreme on the external diameter surface of piston be equipped with down annular groove, be equipped with bowl mouth bowl shape rubber seal A up in the lower annular groove, the upper end on the external diameter surface of piston is equipped with annular groove, be equipped with bowl mouth bowl shape rubber seal B down in the annular groove, the centre on the external diameter surface of piston is equipped with middle annular groove, is equipped with O shape rubber seal B in the middle annular groove.
The outer diameter surface circumference of the bowl-shaped rubber sealing ring A, the bowl-shaped rubber sealing ring B and the O-shaped rubber sealing ring B are respectively in sealing fit with the hole wall surface of the central round hole of the cylinder body.
The lower extreme of cylinder body be equipped with the flange of a body structure, the radial border of flange is equipped with the circular through-hole of 4 ~ 6 equipartitions, is equipped with the hexagon head bolt in the circular through-hole of 4 ~ 6 equipartitions respectively.
The radial outer end of the round boss at the upper end of the detaching head is provided with 4-6 uniformly distributed threaded holes A, and the hole distance of the 4-6 uniformly distributed threaded holes A is the same as that of the 4-6 uniformly distributed round through holes on the radial periphery of the flange at the lower end of the cylinder body.
The hexagonal head bolts in the circular through holes of 4-6 uniform distributions of the radial periphery of the flange at the lower end of the cylinder body are respectively screwed in the threaded holes A of 4-6 uniform distributions of the radial outer end of the circular boss at the upper end of the disassembling head, the flange at the lower end of the cylinder body and the circular boss at the upper end of the disassembling head are locked together, and the cylinder body is locked on the circular boss at the upper end of the disassembling head.
And a sealing rubber gasket is arranged between the lower end surface of the flange at the lower end of the cylinder body and the upper end surface of the round boss at the upper end of the disassembling head.
The limiting cylinder at the upper end of the disassembling head is arranged at the lower end of the central circular hole of the cylinder body, and the outer diameter surface of the limiting cylinder at the upper end of the disassembling head is movably matched with the hole wall surface of the central circular hole of the cylinder body.
The left lower end of the cylindrical cylinder wall of the cylinder body is provided with a threaded oil hole A, the threaded oil hole A is in sealing connection with external threads at the right end of the oil nozzle A, and the left upper end of the oil nozzle A is in sealing connection with the lower end of the high-pressure oil pipe A.
The right upper end of the cylindrical cylinder wall of the cylinder body is provided with a threaded oil hole B, the threaded oil hole B is in sealing connection with the external thread at the left end of the oil nozzle B, and the right upper end of the oil nozzle B is in sealing connection with the lower end of the high-pressure oil pipe B.
The upper end of the cylinder body is provided with a square cylinder seat of an integrated structure, the upper end of the cylinder seat is provided with a manual reversing valve used for controlling the flow direction of hydraulic oil and changing the up-down moving direction of the piston rod, and the manual reversing valve is a three-position four-way manual reversing valve.
The manual reversing valve consists of a lower valve body, an upper valve body, a valve core and a handle, wherein the lower end of the valve core is arranged in central holes of the lower valve body and the upper valve body, and the lower valve body and the upper valve body are locked together by bolts.
The lower valve body of the manual reversing valve is designed to be square, bolt holes with counter bores are formed in four corners of the lower valve body respectively, an inner hexagon bolt is arranged in each bolt hole respectively, each inner hexagon bolt is screwed in the threaded holes in the four corners of the square cylinder base at the upper end of the cylinder body respectively, the lower valve body of the manual reversing valve and the cylinder base at the upper end of the cylinder body are locked together, and the manual reversing valve is locked on the cylinder base at the upper end of the cylinder body.
The manual reversing valve is characterized in that a main oil inlet threaded hole is formed in the center of the front end face of the square lower valve body of the manual reversing valve, the main oil inlet threaded hole is connected with an external thread at the rear end of the oil nozzle D in a sealing mode, and the left end of the front end of the oil nozzle D is connected with the right end of the high-pressure oil pipe C in a sealing mode.
The manual reversing valve is characterized in that an oil discharge threaded hole is formed in the center of the rear end face of the square lower valve body of the manual reversing valve, the oil discharge threaded hole is connected with the external thread at the front end of the oil nozzle F in a sealing mode, and the left end of the rear end of the oil nozzle F is connected with the right end of the high-pressure oil pipe D in a sealing mode.
The manual reversing valve is characterized in that an oil outlet reversing threaded hole A is formed in the center of the left end face of the square lower valve body of the manual reversing valve, the oil outlet reversing threaded hole A is in sealing connection with an external thread at the right end of an oil nozzle E, and the lower end of the left end of the oil nozzle E is in sealing connection with the upper end of a high-pressure oil pipe A.
The manual reversing valve is characterized in that an oil outlet reversing threaded hole B is formed in the center of the right end face of the square lower valve body of the manual reversing valve, the oil outlet reversing threaded hole B is in sealing connection with an external thread at the left end of the oil nozzle C, and the lower end of the right end of the oil nozzle C is in sealing connection with the upper end of the high-pressure oil pipe B.
When a handle at the rear end of the upper end of a valve core of the manual reversing valve is pulled rightwards for 45 degrees, hydraulic oil in a high-pressure oil pipe C enters from a main oil inlet threaded hole of the manual reversing valve, flows out from an oil outlet reversing threaded hole B and enters the upper part of a central round hole of a cylinder body to push a piston at the upper end of a piston rod to move downwards, and the piston drives the piston rod of the integrated structure to move downwards together.
When a handle at the rear end of the upper end of a valve core of the manual reversing valve is pulled leftwards by 45 degrees, hydraulic oil in a high-pressure oil pipe C enters from a main oil inlet threaded hole of the manual reversing valve, flows out from an oil outlet reversing threaded hole A and enters the lower part of a central round hole of a cylinder body to push a piston at the upper end of a piston rod to move upwards, and the piston drives the piston rod of the integrated structure to move upwards together.
When the handle at the rear end of the upper end of the valve core of the manual reversing valve is positioned at the center position right behind, hydraulic oil in the high-pressure oil pipe C enters from the main oil inlet threaded hole of the manual reversing valve and is discharged from the oil outlet threaded hole, and the piston rod is not moved.
The right end of a lower opening groove in the center of the round bottom plate at the lower end of the disassembling head is provided with a semicircular hole, and the tail ends of the right ends of the groove wall surfaces in the front direction and the rear direction of the lower opening groove are tangent to the hole wall surfaces at the maximum diameter positions in the front direction and the rear direction of the semicircular hole at the right end of the lower opening groove respectively.
The front and back groove width B1 of the lower opening groove and the diameter of the semicircular hole at the right end of the lower opening groove are both larger than the outer diameter of the transmission shaft.
The left ends of the front and rear groove wall surfaces of the lower open groove are respectively provided with a chamfer angle A, and the chamfer angle a of the chamfer angle A is 45 degrees.
The opening groove at the left lower end of the cylinder wall of the disassembling head is communicated with the inner space of the disassembling head.
The groove width B2 of the front and back direction of the opening measuring groove is larger than the outer diameter of the bearing, and the groove height H of the upper and lower direction of the opening measuring groove is larger than the thickness of the bearing.
And the tail ends of the left ends of the front groove wall surface and the rear groove wall surface of the opening measuring groove are respectively provided with a chamfer angle B, and the chamfer angle B of the chamfer angle B is 45 degrees.
The cylinder body and the detaching head are made of cast steel ZG270-500, and the piston rod is made of 40Cr steel.
The utility model discloses an useful part is: the center of the dome plate of the integrated structure at the upper end of the disassembling head is provided with an upward convex round boss of the integrated structure, the center of the round boss is provided with an upward convex limiting cylinder of the integrated structure, the centers of the limiting cylinder, the round boss and the dome plate are provided with a guide hole, a hydraulic piston rod for ejecting a bearing when the bearing arranged on a bearing position journal at the upper end of a transmission shaft is disassembled is arranged in the guide hole, the lower end of the disassembling head is provided with a round bottom plate of the integrated structure for ejecting the bearing when the bearing is disassembled, the left end of the round bottom plate is provided with a lower opening groove for moving the transmission shaft into the center of the round bottom plate when the bearing is disassembled, and the left lower end of the cylinder wall of the disassembling head is provided with a measuring opening groove for moving the bearing into the hollow center of the; the upper end of the cylinder body is provided with a square cylinder seat in an integrated structure, the upper end of the cylinder seat is provided with a manual reversing valve for controlling the flow direction of hydraulic oil and changing the up-down moving direction of the piston rod, and the manual reversing valve is a three-position four-way manual reversing valve; the manual reversing valve consists of a lower valve body, an upper valve body, a valve core and a handle, wherein the lower end of the valve core is arranged in central holes of the lower valve body and the upper valve body, and the lower valve body and the upper valve body are locked together by bolts. When a worn bearing needs to be dismounted, the bearing on the bearing position journal at the upper end of the transmission shaft is aligned with the side opening groove and moved leftwards, the bearing is positioned in the hollow center of the dismounting head, the transmission shaft is positioned in the center of the semicircular hole of the lower opening groove, the handle of the manual reversing valve is pulled rightwards for 45 degrees, hydraulic oil in the high-pressure oil pipe C can enter from the main oil inlet threaded hole of the manual reversing valve and then flows out from the oil outlet reversing threaded hole B and enters the upper part of the central circular hole of the cylinder body, the hydraulic oil entering the upper part of the central circular hole of the cylinder body pushes the piston at the upper end of the piston rod to move downwards, the piston moving downwards drives the piston rod of the integrated structure to move downwards together, as the hydraulic driving force is large, the bearing position journal at the upper end of the transmission shaft is pushed downwards by the piston rod under the action of the hydraulic driving force, meanwhile, the upper end surface of the circular bottom plate at the lower end of the The worn-out bearing installed on the bearing position journal at the upper end of the transmission shaft can be simply, easily and quickly dismounted, the labor intensity is reduced, and the working efficiency is improved.
The utility model discloses owing to adopt the piston rod that surges and be equipped with the under shed groove and survey the head of tearing open of open slot and combine together, can be simply, light, will install the bearing of wearing and tearing on the bearing position journal of transmission shaft upper end fast and pull out, alleviate intensity of labour, improve work efficiency.
Drawings
The specific structure of the present invention is given by the following embodiments and the accompanying drawings.
Fig. 1 is a schematic view of a hydraulic ejector for a bearing according to the present invention.
Fig. 2 is a K-direction view of a concrete structure of a hydraulic ejector for a bearing according to the present invention.
Fig. 3 is an N-direction view of the concrete structure of the hydraulic ejector of the bearing according to the present invention.
Fig. 4 is a sectional view a-a of a concrete structure of a hydraulic ejector for a bearing according to the present invention.
Fig. 5 is a B-B sectional view showing a concrete structure of a hydraulic ejector for a bearing according to the present invention.
Fig. 6 is a C-C sectional view showing a concrete structure of a hydraulic ejector for a bearing according to the present invention.
In the figure: 1-cylinder body, 2-central circular hole, 3-high pressure oil pipe A, 4-guide hole, 5-O-shaped rubber sealing ring A, 6-limit cylinder, 7-threaded oil hole A, 8-oil nozzle A, 9-sealing rubber gasket, 10-round boss, 11-dome plate, 12-disassembly head, 13-open slot, 14-chamfer B, 15-bearing position journal, 16-chamfer A, 17-lower open slot, 18-transmission shaft, 19-round bottom plate, 20-bearing, 21-cylinder wall, 22-hollow, 23-threaded hole A, 24-flange, 25-round through hole, 26-hexagon head bolt, 27-piston rod, 28-bowl-shaped rubber sealing ring A, 29-O-shaped rubber sealing ring B, 30-bowl-shaped rubber sealing ring B, 31-piston, 32-threaded oil hole B, 33-oil nozzle B, 34-high-pressure oil pipe B, 35-inner hexagon bolt, 36-oil nozzle C, 37-bolt hole, 38-upper valve body, 39-lower valve body, 40-main oil inlet threaded hole, 41-handle, 42-valve core, 43-oil nozzle D, 44-manual reversing valve, 45-oil nozzle E, 46-high-pressure oil pipe C, 47-cylinder seat, 48-high-pressure oil pipe D, 49-oil nozzle F, 50-oil outlet threaded hole, 51-oil outlet reversing threaded hole A, 52-oil outlet reversing threaded hole B.
Detailed Description
The details and the operation of the device according to the present invention will be described in detail with reference to the accompanying drawings.
As shown in the attached drawings, the utility model provides specific device details are: comprises a cylinder body (1), a high-pressure oil pipe A (3), an O-shaped rubber sealing ring A (5), a nozzle A (8), a sealing rubber gasket (9), a disassembly head (12), a hexagon head bolt (26), a piston rod (27), a bowl-shaped rubber sealing ring A (28), an O-shaped rubber sealing ring B (29), a bowl-shaped rubber sealing ring B (30), a nozzle B (33), a high-pressure oil pipe B (34), an inner hexagon bolt (35), a nozzle C (36), a nozzle D (43), a manual reversing valve (44), a nozzle E (45), a high-pressure oil pipe C (46), a high-pressure oil pipe D (48) and a nozzle F (49), wherein an upward convex round boss (10) of an integrated structure is arranged at the center of a dome plate (11) of an integrated structure at the upper end of the disassembly head (12), and an upward convex limiting cylinder (6) of an integrated structure is arranged at the center of the round boss (10), the center of spacing cylinder (6), boss (10) and dome board (11) is equipped with guiding hole (4), be equipped with in guiding hole (4) and be used for tearing out when installing bearing (20) on bearing position journal (15) of transmission shaft (18) upper end ejecting piston rod (27) that surges of bearing (20), the lower extreme of tearing head (12) is equipped with round bottom plate (19) that an organic whole structure was used for ejecting bearing (20) when tearing out bearing (20), the left end of round bottom plate (19) is equipped with lower open groove (17) that are used for when tearing out bearing (20) with transmission shaft (18) removal in the center of round bottom plate (19), the left lower extreme of cylinder wall (21) of tearing head (12) is equipped with and is used for tearing out measuring open slot (13) that bearing (20) moved in the center of interior void (22) of head (12) when bearing (20) is torn out.
The outer surface of the piston rod (27) is movably matched with a guide hole (4) in the center of a limiting cylinder (6), a circular boss (10) and a dome plate (11) at the upper end of the disassembling head (12), the outer surface of the piston rod (27) is respectively in sealing fit with inner holes of O-shaped rubber sealing rings A (5) in two annular grooves in the upper hole wall surface and the lower hole wall surface of the guide hole (4), and when the piston rod (27) moves downwards, the lower end of the piston rod (27) extends out of an inner space (22) of the disassembling head (12).
The upper end of the piston rod (27) is provided with a piston (31) which is of an integrated structure, and the upper end of the piston rod (27) and the piston (31) are arranged in a central circular hole (2) of the cylinder body (1).
The lower extreme on the external diameter surface of piston (31) is equipped with down annular groove, is equipped with bowl mouth bowl shape rubber seal A (28) up in the annular groove down, and the upper end on the external diameter surface of piston (31) is equipped with annular groove, is equipped with bowl mouth bowl shape rubber seal B (30) down in the annular groove of going up, and the centre on the external diameter surface of piston (31) is equipped with middle annular groove, is equipped with O shape rubber seal B (29) in the annular groove of centre.
The outer diameter surface circumference of the bowl-shaped rubber sealing ring A (28), the bowl-shaped rubber sealing ring B (30) and the O-shaped rubber sealing ring B (29) is respectively matched with the hole wall surface of the central round hole (2) of the cylinder body (1) in a sealing way.
The lower extreme of cylinder body (1) is equipped with flange (24) of integrative structure, and the radial periphery of flange (24) is equipped with 6 equipartition round through-holes (25), is equipped with hexagon head bolt (26) in 6 equipartition round through-holes (25) respectively.
The radial outer end of the round boss (10) at the upper end of the disassembling head (12) is provided with 6 uniformly distributed threaded holes A (23), and the hole distance of the 6 threaded holes A (23) is the same as that of the 6 uniformly distributed round through holes (25) on the radial periphery of the flange (24) at the lower end of the cylinder body (1).
Hexagonal head bolts (26) in 6 uniformly distributed circular through holes (25) on the radial periphery of a flange (24) at the lower end of the cylinder body (1) are respectively screwed in 6 uniformly distributed threaded holes A (23) at the radial outer end of a circular boss (10) at the upper end of the disassembling head (12), the flange (24) at the lower end of the cylinder body (1) and the circular boss (10) at the upper end of the disassembling head (12) are locked together, and the cylinder body (1) is locked on the circular boss (10) at the upper end of the disassembling head (12).
A sealing rubber gasket (9) is arranged between the lower end surface of a flange (24) at the lower end of the cylinder body (1) and the upper end surface of a circular boss (10) at the upper end of the disassembling head (12).
The limiting cylinder (6) at the upper end of the disassembling head (12) is arranged at the lower end of the central round hole (2) of the cylinder body (1), and the outer diameter surface of the limiting cylinder (6) at the upper end of the disassembling head (12) is in movable fit with the wall surface of the central round hole (2) of the cylinder body (1).
The left lower end of the cylindrical cylinder wall of the cylinder body (1) is provided with a threaded oil hole A (7), the threaded oil hole A (7) is in sealing connection with the external thread at the right end of the oil nozzle A (8), and the left upper end of the oil nozzle A (8) is in sealing connection with the lower end of the high-pressure oil pipe A (3).
The right upper end of the cylindrical cylinder wall of the cylinder body (1) is provided with a threaded oil hole B (32), the threaded oil hole B (32) is in sealing connection with an external thread at the left end of an oil nozzle B (33), and the right upper end of the oil nozzle B (33) is in sealing connection with the lower end of a high-pressure oil pipe B (34).
The upper end of the cylinder body (1) is provided with a square cylinder seat (47) which is of an integral structure, the upper end of the cylinder seat (47) is provided with a manual reversing valve (44) which is used for controlling the flow direction of hydraulic oil and changing the up-down moving direction of the piston rod (27), and the manual reversing valve (44) is a three-position four-way manual reversing valve.
The manual reversing valve (44) is composed of a lower valve body (39), an upper valve body (38), a valve core (42) and a handle (41), the lower end of the valve core (42) is arranged in central holes of the lower valve body (39) and the upper valve body (38), and the lower valve body (39) and the upper valve body (38) are locked together through bolts.
The lower valve body (39) of the manual reversing valve (44) is square, bolt holes (37) with counter bores are formed in four corners of the lower valve body (39), an inner hexagonal bolt (35) is arranged in each bolt hole (37), each inner hexagonal bolt (35) is screwed in threaded holes in four corners of a square cylinder base (47) in the upper end of the cylinder body (1), the lower valve body (39) of the manual reversing valve (44) and the cylinder base (47) in the upper end of the cylinder body (1) are locked together, and the manual reversing valve (44) is locked on the cylinder base (47) in the upper end of the cylinder body (1).
The center of the front end face of a square lower valve body (39) of the manual reversing valve (44) is provided with a main oil inlet threaded hole (40), the main oil inlet threaded hole (40) is in sealing connection with an external thread at the rear end of a nozzle D (43), and the left end of the front end of the nozzle D (43) is in sealing connection with the right end of a high-pressure oil pipe C (46).
An oil discharge threaded hole (50) is formed in the center of the rear end face of a square lower valve body (39) of the manual reversing valve (44), the oil discharge threaded hole (50) is connected with an external thread at the front end of an oil nozzle F (49) in a sealing mode, and the left end of the rear end of the oil nozzle F (49) is connected with the right end of a high-pressure oil pipe D (48) in a sealing mode.
An oil outlet reversing threaded hole A (51) is formed in the center of the left end face of a square lower valve body (39) of the manual reversing valve (44), the oil outlet reversing threaded hole A (51) is in sealing connection with an external thread at the right end of an oil nozzle E (45), and the lower end of the left end of the oil nozzle E (45) is in sealing connection with the upper end of a high-pressure oil pipe A (3).
An oil outlet reversing threaded hole B (52) is formed in the center of the right end face of a square lower valve body (39) of the manual reversing valve (44), the oil outlet reversing threaded hole B (52) is in sealing connection with an external thread at the left end of the oil nozzle C (36), and the lower end of the right end of the oil nozzle C (36) is in sealing connection with the upper end of the high-pressure oil pipe B (34).
When a handle (41) at the rear end of the upper end of a valve core (42) of a manual reversing valve (44) is pulled rightwards for 45 degrees, hydraulic oil in a high-pressure oil pipe C (46) enters from a main oil inlet threaded hole (40) of the manual reversing valve (44), flows out from an oil outlet reversing threaded hole B (52) and enters the upper part of a central round hole (2) of a cylinder body (1) to push a piston (31) at the upper end of a piston rod (27) to move downwards, and the piston (31) drives a piston rod (27) of an integrated structure to move downwards together.
When a handle (41) at the rear end of the upper end of a valve core (42) of a manual reversing valve (44) is pulled leftwards by 45 degrees, hydraulic oil in a high-pressure oil pipe C (46) enters from a main oil inlet threaded hole (40) of the manual reversing valve (44), flows out from an oil outlet reversing threaded hole A (51) and enters the lower part of a central round hole (2) of a cylinder body (1) to push a piston (31) at the upper end of a piston rod (27) to move upwards, and the piston (31) drives a piston rod (27) of an integrated structure to move upwards together.
When a handle (41) at the rear end of the upper end of a valve core (42) of the manual reversing valve (44) is located at the central position right behind, hydraulic oil in a high-pressure oil pipe C (46) enters from a main oil inlet threaded hole (40) of the manual reversing valve (44) and is discharged from an oil discharge threaded hole (50), and a piston rod (27) is fixed.
The right end of a lower opening groove (17) in the center of a round bottom plate (19) at the lower end of the detaching head (12) is provided with a semicircular hole, and the tail ends of the right ends of the groove wall surfaces in the front and rear directions of the lower opening groove (17) are tangent to the hole wall surfaces at the maximum diameters of the semicircular hole in the front and rear directions at the right end of the lower opening groove (17).
The groove width B1 of the lower opening groove (17) in the front and back direction and the diameter of the semicircular hole at the right end of the lower opening groove (17) are both larger than the outer diameter of the transmission shaft (18).
The left ends of the front and rear groove wall surfaces of the lower opening groove (17) are respectively provided with a chamfer angle A (16), and the chamfer angle a of the chamfer angle A (16) is 45 degrees.
The opening measuring groove (13) at the left lower end of the cylinder wall (21) of the disassembling head (12) is communicated with the inner space (22) of the disassembling head (12).
The front and rear direction groove width B2 of the opening measuring groove (13) is larger than the outer diameter of the bearing (20), and the up and down direction groove height H of the opening measuring groove (13) is larger than the thickness of the bearing (20).
The left ends of the front and rear groove wall surfaces of the opening measuring groove (13) are respectively provided with a chamfer angle B (14), and the chamfer angle B of the chamfer angle B (14) is 45 degrees.
The cylinder body (1) and the detaching head (12) are made of cast steel ZG270-500, and the piston rod (27) is made of 40Cr steel.
The utility model provides a concrete device behavior is: before the bearing that has worn and torn needs to be torn open, with the fuel feeding glib talker sealing connection of high pressure fuel pipe C's left end and hydraulic pressure station, with the oil return glib talker sealing connection of high pressure fuel pipe D's left end and hydraulic pressure station, open the hydraulic pressure station, make the hydraulic pressure station be in operating condition, pull the central point that is in the dead astern with the handle of manual switching-over valve, the hydraulic oil of hydraulic pressure station is exported from the fuel feeding glib talker, through high pressure fuel pipe C and glib D from the main oil feed screw hole at the front end face center of the lower valve body of the square of manual switching-over valve and get into, then discharge from the oil extraction screw hole at the rear end face center of the lower valve body of the square of manual switching-over valve, flow back to the oil tank at hydraulic pressure station in through glib F and high pressure fuel pipe D and.
When the worn-out bearing needs to be removed, the opening measuring groove at the left lower end of the cylinder wall of the removing head is aligned with the bearing on the bearing position journal at the upper end of the transmission shaft and moves in the left direction, so that the bearing is positioned in the hollow center of the removing head, and the transmission shaft is positioned in the center of the semicircular hole of the lower opening groove at the left end of the round bottom plate at the lower end of the removing head.
When the worn bearing is dismounted, the handle of the manual reversing valve is pulled to the right by 45 degrees, hydraulic oil in the high-pressure oil pipe C enters from a main oil inlet threaded hole in the center of the front end face of the square lower valve body of the manual reversing valve through the oil nozzle D, then flows out from an oil outlet reversing threaded hole B in the center of the right end face of the square lower valve body of the manual reversing valve, enters above a central round hole of the cylinder body through the oil nozzle C, the high-pressure oil pipe B, the oil nozzle B and the threaded oil hole B, and pushes a piston at the upper end of a piston rod to move downwards through the hydraulic oil entering above the central round hole of the cylinder body,
the piston that down moved drives the piston rod of a body structure and down moves together, because hydraulic drive force is big, the piston rod pushes up the bearing position journal of transmission shaft upper end down under the effect of hydraulic drive force, simultaneously, the up end of the round bottom plate of tearing head lower extreme produces ascending reaction force under the effect of the drive force that the piston rod pushed up down and up pushes up the lower terminal surface of bearing, simple, light, will install the bearing of wearing and tearing on the bearing position journal of transmission shaft upper end fast and pull out.
In the process that a piston drives a piston rod of an integrated structure to move downwards together, hydraulic oil below a central round hole of a cylinder body is discharged from a threaded oil hole A, enters an oil outlet reversing threaded hole A in the center of the left end face of a square lower valve body of a manual reversing valve through an oil nozzle A, a high-pressure oil pipe A and an oil nozzle E, is then discharged from an oil discharge threaded hole in the center of the rear end face of the square lower valve body of the manual reversing valve, and flows back to an oil tank of a hydraulic station through an oil nozzle F, a high-pressure oil pipe D and an oil return nozzle of the hydraulic station.
After the worn bearing is removed, the handle of the manual reversing valve is pulled 45 degrees leftwards, the hydraulic oil in the high-pressure oil pipe C enters from the main oil inlet threaded hole in the center of the front end face of the square lower valve body of the manual reversing valve through the oil nozzle D, then flows out from an oil outlet reversing threaded hole A in the center of the left end face of a square lower valve body of the manual reversing valve, enters the lower part of a central round hole of the cylinder body through an oil nozzle E, a high-pressure oil pipe A, the oil nozzle A and a threaded oil hole A, hydraulic oil entering the lower part of the central round hole of the cylinder body pushes a piston at the upper end of a piston rod to move upwards, the piston moving upwards drives the piston rod of the integrated structure to move upwards together, when the upper end surface of the piston at the upper end of the piston rod moves upwards to the lower end surface of the cylinder seat, the handle of the manual reversing valve is pulled to the central position right behind, so that the utility model discloses be in the standby state can.
In the process that the piston drives the piston rod of the integrated structure to move upwards together, hydraulic oil above a central round hole of the cylinder body is discharged from the threaded oil hole B, enters the oil outlet reversing threaded hole B in the center of the right end face of the square lower valve body of the manual reversing valve through the oil nozzle B, the high-pressure oil pipe B and the oil nozzle C, is then discharged from the oil discharge threaded hole in the center of the rear end face of the square lower valve body of the manual reversing valve, and flows back to the oil tank of the hydraulic station through the oil nozzle F, the high-pressure oil pipe D and the oil return nozzle of the hydraulic station.
Claims (4)
1. The utility model provides a ware is torn out in surge of bearing, including cylinder body (1), high pressure fuel pipe A (3), O shape rubber seal A (5), glib talker A (8), sealing rubber gasket (9), tear head (12), hexagon head bolt (26), piston rod (27), bowl shape rubber seal A (28), O shape rubber seal B (29), bowl shape rubber seal B (30), glib talker B (33), high pressure fuel pipe B (34), interior hexagon head bolt (35), glib talker C (36), glib talker D (43), manual directional control valve (44), glib talker E (45), high pressure fuel pipe C (46), high pressure fuel pipe D (48) and glib F (49) constitute, its characterized in that: the center of a dome plate (11) of an upper end integrated structure of a dismantling head (12) is provided with an upward convex round boss (10) of an integrated structure, the center of the round boss (10) is provided with an upward convex limiting cylinder (6) of an integrated structure, the centers of the limiting cylinder (6), the round boss (10) and the dome plate (11) are provided with a guide hole (4), a hydraulic piston rod (27) for ejecting a bearing (20) when the bearing (20) installed on a bearing position journal (15) at the upper end of a transmission shaft (18) is dismounted is arranged in the guide hole (4), the lower end of the dismantling head (12) is provided with a round bottom plate (19) of an integrated structure for ejecting the bearing (20) when the bearing (20) is dismounted, the left end of the round bottom plate (19) is provided with a lower opening groove (17) for moving the transmission shaft (18) into the center of the round bottom plate (19) when the bearing (20) is dismounted, and the left lower end of a cylinder wall (21) of the dismantling head (12) is provided with a lower opening groove (17) for moving A side opening groove (13) at the center of the inner space (22) of the head (12);
the outer surface of the piston rod (27) is movably matched with a limiting cylinder (6) at the upper end of the disassembling head (12), a circular boss (10) and a guide hole (4) at the center of a dome plate (11), the outer surface of the piston rod (27) is respectively in sealing fit with inner holes of O-shaped rubber sealing rings A (5) in two annular grooves on the upper hole wall surface and the lower hole wall surface of the guide hole (4), and when the piston rod (27) moves downwards, the lower end of the piston rod (27) extends out of an inner cavity (22) of the disassembling head (12);
the upper end of the piston rod (27) is provided with a piston (31) which is of an integrated structure, and the upper end of the piston rod (27) and the piston (31) are arranged in a central circular hole (2) of the cylinder body (1);
the lower end of the outer diameter surface of the piston (31) is provided with a lower annular groove, a bowl-shaped rubber sealing ring A (28) with an upward bowl opening is arranged in the lower annular groove, an upper annular groove is arranged at the upper end of the outer diameter surface of the piston (31), a bowl-shaped rubber sealing ring B (30) with a downward bowl opening is arranged in the upper annular groove, a middle annular groove is arranged in the middle of the outer diameter surface of the piston (31), and an O-shaped rubber sealing ring B (29) is arranged in the middle annular groove;
the outer diameter surface circumference of the bowl-shaped rubber sealing ring A (28), the bowl-shaped rubber sealing ring B (30) and the O-shaped rubber sealing ring B (29) is respectively matched with the hole wall surface of the central round hole (2) of the cylinder body (1) in a sealing way;
the lower end of the cylinder body (1) is provided with a flange (24) of an integrated structure, the radial circumference of the flange (24) is provided with 4-6 uniformly distributed round through holes (25), and hexagonal bolts (26) are respectively arranged in the 4-6 uniformly distributed round through holes (25);
the radial outer end of the round boss (10) at the upper end of the disassembling head (12) is provided with 4-6 uniformly distributed threaded holes A (23), and the hole pitch of the 4-6 threaded holes A (23) is the same as the hole pitch of the 4-6 uniformly distributed round through holes (25) on the radial periphery of the flange (24) at the lower end of the cylinder body (1);
hexagonal head bolts (26) in 4-6 uniformly distributed circular through holes (25) on the radial periphery of a flange (24) at the lower end of the cylinder body (1) are respectively screwed in 4-6 uniformly distributed threaded holes A (23) at the radial outer end of a circular boss (10) at the upper end of a disassembling head (12), the flange (24) at the lower end of the cylinder body (1) and the circular boss (10) at the upper end of the disassembling head (12) are locked together, and the cylinder body (1) is locked on the circular boss (10) at the upper end of the disassembling head (12);
a sealing rubber gasket (9) is arranged between the lower end face of a flange (24) at the lower end of the cylinder body (1) and the upper end face of a circular boss (10) at the upper end of the disassembling head (12);
the limiting cylinder (6) at the upper end of the disassembling head (12) is arranged at the lower end of the central circular hole (2) of the cylinder body (1), and the outer diameter surface of the limiting cylinder (6) at the upper end of the disassembling head (12) is in movable fit with the wall surface of the central circular hole (2) of the cylinder body (1);
the left lower end of the cylindrical cylinder wall of the cylinder body (1) is provided with a threaded oil hole A (7), the threaded oil hole A (7) is in sealing connection with external threads at the right end of an oil nozzle A (8), and the left upper end of the oil nozzle A (8) is in sealing connection with the lower end of a high-pressure oil pipe A (3);
the right upper end of the cylindrical cylinder wall of the cylinder body (1) is provided with a threaded oil hole B (32), the threaded oil hole B (32) is in sealing connection with an external thread at the left end of an oil nozzle B (33), and the right upper end of the oil nozzle B (33) is in sealing connection with the lower end of a high-pressure oil pipe B (34).
2. A hydraulic extractor of bearings according to claim 1, characterized in that: the upper end of the cylinder body (1) is provided with a square cylinder seat (47) which is of an integral structure, the upper end of the cylinder seat (47) is provided with a manual reversing valve (44) which is used for controlling the flow direction of hydraulic oil and changing the up-down moving direction of the piston rod (27), and the manual reversing valve (44) is a three-position four-way manual reversing valve;
the manual reversing valve (44) consists of a lower valve body (39), an upper valve body (38), a valve core (42) and a handle (41), wherein the lower end of the valve core (42) is arranged in central holes of the lower valve body (39) and the upper valve body (38), and the lower valve body (39) and the upper valve body (38) are locked together by bolts;
the lower valve body (39) of the manual reversing valve (44) is square, bolt holes (37) with counter bores are formed in four corners of the lower valve body (39), a hexagon socket head cap screw (35) is arranged in each bolt hole (37), each hexagon socket head cap screw (35) is screwed in threaded holes in four corners of a square cylinder base (47) in the upper end of the cylinder body (1), the lower valve body (39) of the manual reversing valve (44) and the cylinder base (47) in the upper end of the cylinder body (1) are locked together, and the manual reversing valve (44) is locked on the cylinder base (47) in the upper end of the cylinder body (1);
a main oil inlet threaded hole (40) is formed in the center of the front end face of a square lower valve body (39) of the manual reversing valve (44), the main oil inlet threaded hole (40) is in sealing connection with an external thread at the rear end of the oil nozzle D (43), and the left end of the front end of the oil nozzle D (43) is in sealing connection with the right end of a high-pressure oil pipe C (46);
an oil discharge threaded hole (50) is formed in the center of the rear end face of a square lower valve body (39) of the manual reversing valve (44), the oil discharge threaded hole (50) is in sealing connection with an external thread at the front end of an oil nozzle F (49), and the left end of the rear end of the oil nozzle F (49) is in sealing connection with the right end of a high-pressure oil pipe D (48);
an oil outlet reversing threaded hole A (51) is formed in the center of the left end face of a square lower valve body (39) of the manual reversing valve (44), the oil outlet reversing threaded hole A (51) is in sealing connection with an external thread at the right end of an oil nozzle E (45), and the lower end of the left end of the oil nozzle E (45) is in sealing connection with the upper end of a high-pressure oil pipe A (3);
an oil outlet reversing threaded hole B (52) is formed in the center of the right end face of a square lower valve body (39) of the manual reversing valve (44), the oil outlet reversing threaded hole B (52) is in sealing connection with an external thread at the left end of the oil nozzle C (36), and the lower end of the right end of the oil nozzle C (36) is in sealing connection with the upper end of a high-pressure oil pipe B (34);
when a handle (41) at the rear end of the upper end of a valve core (42) of the manual reversing valve (44) is pulled rightwards for 45 degrees, hydraulic oil in a high-pressure oil pipe C (46) enters from a main oil inlet threaded hole (40) of the manual reversing valve (44), flows out from an oil outlet reversing threaded hole B (52) and enters the upper part of a central round hole (2) of a cylinder body (1) to push a piston (31) at the upper end of a piston rod (27) to move downwards, and the piston (31) drives a piston rod (27) of an integrated structure to move downwards together;
when a handle (41) at the rear end of the upper end of a valve core (42) of the manual reversing valve (44) is pulled leftwards by 45 degrees, hydraulic oil in a high-pressure oil pipe C (46) enters from a main oil inlet threaded hole (40) of the manual reversing valve (44), flows out from an oil outlet reversing threaded hole A (51) and enters the lower part of a central round hole (2) of a cylinder body (1) to push a piston (31) at the upper end of a piston rod (27) to move upwards, and the piston (31) drives a piston rod (27) of an integrated structure to move upwards together;
when a handle (41) at the rear end of the upper end of a valve core (42) of the manual reversing valve (44) is located at the center position right behind, hydraulic oil in a high-pressure oil pipe C (46) enters from a main oil inlet threaded hole (40) of the manual reversing valve (44) and is discharged from an oil discharge threaded hole (50), and a piston rod (27) is fixed.
3. A hydraulic extractor of bearings according to claim 1, characterized in that: the right end of a lower opening groove (17) in the center of a round bottom plate (19) at the lower end of the disassembling head (12) is provided with a semicircular hole, and the tail ends of the right ends of the groove wall surfaces in the front and rear directions of the lower opening groove (17) are tangent to the hole wall surfaces at the maximum diameters of the semicircular hole in the front and rear directions at the right end of the lower opening groove (17) respectively;
the front and rear groove widths B1 of the lower opening groove (17) and the diameter of a semicircular hole at the right end of the lower opening groove (17) are both larger than the outer diameter of the transmission shaft (18);
the left ends of the front groove wall surface and the rear groove wall surface of the lower opening groove (17) are respectively provided with a chamfer angle A (16), and the chamfer angle a of the chamfer angle A (16) is 45 degrees;
the opening measuring groove (13) at the left lower end of the cylinder wall (21) of the disassembling head (12) is communicated with the inner space (22) of the disassembling head (12);
the groove width B2 of the front and back direction of the opening measuring groove (13) is larger than the outer diameter of the bearing (20), and the groove height H of the upper and lower direction of the opening measuring groove (13) is larger than the thickness of the bearing (20);
the left end tail ends of the front groove wall surface and the rear groove wall surface of the opening measuring groove (13) are respectively provided with a chamfer angle B (14), and the chamfer angle B of the chamfer angle B (14) is 45 degrees.
4. A hydraulic extractor of bearings according to claim 1, characterized in that: the cylinder body (1) and the detaching head (12) are made of cast steel ZG270-500, and the piston rod (27) is made of 40Cr steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920620575.1U CN209812205U (en) | 2019-05-02 | 2019-05-02 | Hydraulic drive disassembling device for bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920620575.1U CN209812205U (en) | 2019-05-02 | 2019-05-02 | Hydraulic drive disassembling device for bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209812205U true CN209812205U (en) | 2019-12-20 |
Family
ID=68883127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920620575.1U Expired - Fee Related CN209812205U (en) | 2019-05-02 | 2019-05-02 | Hydraulic drive disassembling device for bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209812205U (en) |
-
2019
- 2019-05-02 CN CN201920620575.1U patent/CN209812205U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191220 Termination date: 20200502 |