CN213471026U

CN213471026U - Subway axle box bearing lubricating oil pressure equipment frock

Info

Publication number: CN213471026U
Application number: CN202021699537.9U
Authority: CN
Inventors: 张浩然
Original assignee: Chongqing Vocational Institute of Engineering
Current assignee: Chongqing Vocational Institute of Engineering
Priority date: 2020-08-15
Filing date: 2020-08-15
Publication date: 2021-06-18
Anticipated expiration: 2030-08-15

Abstract

The utility model discloses a subway axle box bearing lubricating oil press fitting tool, which can be used for filling lubricating grease to a bearing at one time and comprehensively; the oil-fat-free oil-water separator comprises side plates, wherein top plates are arranged at the tops of the side plates, oil cylinders and hinged vertical rods are arranged on the top plates, the hinged vertical rods are hinged with one ends of hinged cross rods through hinged pins, and sleeves are sleeved on the hinged cross rods; the sleeve is hinged with one end of a pressing connecting rod through a rotating shaft, the other end of the pressing connecting rod is assembled with a pressing disc, the pressing disc is used for pressing the top end face of the bearing so as to press the bearing into a grease cylinder, and lubricating grease is filled in the grease cylinder; the inner part of the grease cylinder is a hollow grease cavity, and a grease tray is clamped in the grease cavity and can be axially slidably arranged in the grease cavity; the top surface of the grease supporting plate is fixed with a supporting plate guide shaft, and the bottom of the grease supporting plate is assembled and fixed with the top of the ejection shaft; and a part of the ejection shaft, which is positioned between the grease supporting plate and the bottom surface of the grease cavity, is sleeved with a grease pressure spring, and the grease pressure spring is used for applying elastic force to the grease supporting plate to prevent the grease supporting plate from moving downwards.

Description

Subway axle box bearing lubricating oil pressure equipment frock

Technical Field

The utility model relates to a subway overhauls the technique, especially relates to subway axle box bearing overhauls technique, concretely relates to subway axle box bearing lubricating oil pressure equipment frock.

Background

In the process of overhauling the subway axle box, a bearing in the axle box needs to be taken out, and then lubricating oil is sprayed to the bearing. At present, lubricating grease is mainly injected into a gap where a retainer is located, and then a bearing is rotated to realize lubrication, so that the mode is very low in efficiency and insufficient lubrication is easily caused.

The invention designs a lubricating oil press-fitting tool for a subway axle box bearing, which can be used for filling lubricating grease to the bearing in a one-time and comprehensive mode.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned defect of prior art, the utility model aims to solve the technical problem that a subway axle box bearing lubricating oil pressure equipment frock is provided.

In order to achieve the purpose, the utility model provides a subway axle box bearing lubricating oil press fitting tool, which comprises a side plate, a top plate is arranged on the top of the side plate, a grease cylinder and a hinged vertical rod are arranged on the top plate, the hinged vertical rod is hinged with one end of a hinged cross rod through a hinged pin, and a sleeve is sleeved on the hinged cross rod; the sleeve is hinged with one end of a pressing connecting rod through a rotating shaft, the other end of the pressing connecting rod is assembled with a pressing disc, the pressing disc is used for pressing the top end face of the bearing so as to press the bearing into a grease cylinder, and lubricating grease is filled in the grease cylinder;

the inner part of the grease cylinder is a hollow grease cavity, and a grease tray is clamped in the grease cavity and can be axially slidably arranged in the grease cavity; the top surface of the grease supporting plate is fixed with a supporting plate guide shaft, and the bottom of the grease supporting plate is assembled and fixed with the top of the ejection shaft; and a part of the ejection shaft, which is positioned between the grease supporting plate and the bottom surface of the grease cavity, is sleeved with a grease pressure spring, and the grease pressure spring is used for applying elastic force to the grease supporting plate to prevent the grease supporting plate from moving downwards.

Preferably, the sleeve is fixed to the hinged cross-bar by means of a sleeve screw.

Preferably, the hinge cross rod is provided with a limiting ring, and the limiting ring is used for limiting the maximum displacement of the sleeve moving to the hinge vertical rod.

Preferably, the grease supporting plate is provided with a plurality of through oil holes for allowing lubricating grease to pass through.

Preferably, the ejection shaft sequentially passes through the grease cylinder, the top plate, the oil supplementing cylinder, the partition plate and the retaining block and can be axially assembled in a sliding manner with the grease cylinder, the partition plate and the retaining block are mounted on the two side plates, a first tooth groove part is arranged at the bottom of the ejection shaft, the first tooth groove part forms an ejection rack part on the ejection shaft, the ejection rack part is in meshing transmission with one side of a gear, the other side of the gear is in meshing transmission with a power rack part, and the power rack part is formed by a second tooth groove arranged on a power shaft; the gear is circumferentially and rotatably arranged in a gear groove through a gear shaft, the gear groove is arranged in the holding block, and the power shaft is clamped with the holding block and can be axially assembled in a sliding manner; the bottom of the power shaft penetrates through the retaining block and then is assembled and fixed with the pedal.

Preferably, the top of the power shaft penetrates through the retaining block and then is assembled and fixed with the shaft end limiting ring, a power spring is sleeved on the part of the power shaft between the shaft end limiting ring and the retaining block, and the power spring is used for applying elastic damping for blocking the power shaft to move downwards.

Preferably, an oil tank and an oil supplementing cylinder are arranged between the partition plate and the top plate, a hollow oil supplementing cavity is arranged in the oil supplementing cylinder, a piston is arranged in the oil supplementing cavity in a sealing and axially sliding manner, and the piston is sleeved and fixed on the ejection shaft;

the oil feeding hole is formed in the part, located in the oil supplementing cavity, of the ejection shaft, the oil feeding hole is communicated with the bottom of the oil passing cavity through the communicating hole, one end, located in the oil cavity, of the oil passing cavity is communicated with one end of the oil discharging hole, and the other end of the oil discharging hole penetrates through the ejection shaft and is communicated with the oil cavity; the oil passing cavity and the oil discharging hole are both arranged on the ejection shaft.

Preferably, the communication hole is communicated with the oil passing cavity through a one-way valve assembly; the check valve group comprises a sealing plug, a check valve plate and a check hinge block, the check hinge block is arranged on the bottom end face of the oil passing cavity and is hinged with one end of the check valve plate through a check rotating shaft, and the sealing plug is made of elastic and soft materials; the sealing plug is fixed on the one-way valve plate, the one-way valve plate is far away from the sealing plug, one end of the one-way rotating shaft is assembled with one end of the spring piece, the other end of the spring piece is assembled with the bottom end face of the oil passing cavity, the spring piece is provided with elasticity and used for applying elastic thrust rotating towards the communicating hole to the one-way valve plate, and the sealing plug is tightly pressed with the top end face of the communicating hole to.

Preferably, the inside hollow storage chamber that has of oil tank, storage chamber pass through check valve and oil supplementing chamber intercommunication, and the flow direction of check valve is for flowing to oil supplementing chamber by the storage chamber.

Preferably, the check valve comprises a valve casing, the two ends of the valve casing are respectively provided with a first insertion end and a second insertion end, the middle of the valve casing is provided with a hollow valve cavity, a check partition disc is arranged in the valve cavity, and a check hole is formed in the check partition disc; the first inserting end and the second inserting end are respectively communicated with the storage cavity and the oil supplementing cavity, the one-way partition disc is provided with another one-way valve assembly, the one-way valve assembly comprises a sealing plug, a one-way valve plate and a one-way hinge block, the one-way hinge block is arranged on the one-way partition disc and is hinged with one end of the one-way valve plate through a one-way rotating shaft, and the sealing plug is made of elastic and soft materials; the sealing plug is fixed on the one-way valve plate, the one-way valve plate is far away from the sealing plug, one end of the one-way rotating shaft is assembled with one end of the spring piece, the other end of the spring piece is assembled with the bottom end face of the oil passing cavity, the spring piece is elastic and used for applying elastic thrust rotating towards the one-way hole to the one-way valve plate, and the sealing plug is tightly pressed with one end of the one-way hole to seal the one.

The utility model has the advantages that:

the utility model discloses simple structure is through the mode that pushes down the bearing from the axial for in the lubricating grease in the grease section of thick bamboo can get into the clearance at holder place smoothly, therefore filling lubricating oil very fast and comprehensive, can improve maintenance efficiency and the quality to the bearing greatly.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is an enlarged view of fig. 1 at F1.

Fig. 3 is an enlarged view at F2 in fig. 2.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1 to 3, the lubricating oil press-fitting tool for the bearing of the subway axle box of the embodiment includes a side plate 110, a top plate 120 is installed on the top of the side plate 110, a grease cylinder 610 and a hinged vertical rod 140 are installed on the top plate 120, the hinged vertical rod 140 is hinged to one end of a hinged cross rod 150 through a hinged pin 340, and a sleeve 510 is sleeved on the hinged cross rod 150. Preferably, sleeve 510 is fixedly assembled with hinged crossbar 150 by sleeve screw 350. More preferably, the hinge cross bar 150 is provided with a limiting ring 151, and the limiting ring 151 is used for limiting the maximum displacement of the sleeve 510 to the hinge vertical rod, so as to position the sleeve.

The sleeve 510 is hinged to one end of a pressing link 520 through a rotation shaft 360, and the other end of the pressing link 520 is assembled with a pressing plate 530, and the pressing plate 530 is used for pressing the top end surface of the bearing 900 so as to press the bearing 900 into the grease tube 610.

The inside hollow grease chamber 611 that is of grease section of thick bamboo 610, but the interior block of grease chamber 611, the axial slidable ground install grease layer board 620, be provided with the oilhole 621 that the several runs through on the grease layer board 620, the oilhole 621 is used for making lubricating grease pass through. The top surface of the grease supporting plate 620 is fixed with a supporting plate guide shaft 622, the bottom of the grease supporting plate is assembled and fixed with the top of the ejection shaft 320, the ejecting shaft 320 passes through the grease cartridge 610, the top plate 120, the oil compensating cartridge 230, the partition plate 160 and the retaining block 130 in sequence and is axially slidably assembled with the same, the partition plate 160 and the holding block 130 are mounted on the two side plates 120, an oil tank 220 and an oil compensating cylinder 230 are mounted between the partition plate 160 and the top plate 120, the interior of the oil supplementing cylinder 230 is a hollow oil supplementing cavity 231, a piston 240 is hermetically and axially slidably mounted in the oil supplementing cavity 231, the piston 240 is sleeved and fixed on the ejection shaft 320, the bottom of the ejection shaft 320 is provided with a first toothed groove part 311, the first toothed groove part 311 forms an ejection rack part on the ejection shaft 310, the ejection rack part is in meshing transmission with one side of the gear 210, the other side of the gear 210 is in meshing transmission with the power rack part, the power rack portion is constituted by a second gear groove 331 provided on the power shaft 330; the gear 210 is installed in a gear groove 131 in a way of circumferential rotation through a gear shaft 310, the gear groove 131 is arranged in a holding block 130, and the power shaft 330 is in clamping fit with the holding block and can be assembled in an axial sliding way;

the bottom of the power shaft 330 penetrates through the retaining block 130 and is assembled and fixed with the pedal 332, and when the ejector pin is used, the pedal is stepped by a foot to drive the power shaft 330 to move downwards in the axial direction, so that the ejector pin is driven to move upwards. The top of the power shaft 330 penetrates through the retaining block 130 and then is assembled and fixed with the shaft end limiting ring 333, a power spring 410 is sleeved on the part of the power shaft 330 between the shaft end limiting ring 333 and the retaining block 130, and the power spring 410 is used for applying elastic damping for preventing the power shaft from moving downwards.

Preferably, a portion of the ejection shaft 320 between the grease supporting plate 620 and the bottom surface of the grease cavity 611 is sleeved with a grease pressing spring 420, and the grease pressing spring 420 is used for applying an elastic force to the grease supporting plate 620 to prevent the grease supporting plate 620 from moving downwards.

In the initial state, the power shaft is in the state of fig. 1 under the action of the elastic force of the power spring 410, and the grease supporting plate 620 is also in the state of fig. 1 and is located in the middle of the grease cavity 611. When the bearing pressing device is used, firstly, the bearing 900 is placed in the grease cavity 611 and on the grease supporting plate 620, then the bottom end face of the pressing disc 530 is attached to the top end face of the bearing 900, the hinged cross rod 150 is driven to rotate downwards by taking the hinged pin 340 as a center, the pressing disc 530 is driven to press the bearing 900 downwards, and the bearing 900 moves downwards to completely enter the grease cavity 611. In the second process, the lubricating grease can enter the bearing from the gap of the bearing mounting retainer until the lubricating grease passes through the top end of the bearing, so that the lubricating grease is pressed into the bearing in a one-time and comprehensive mode, and the lubricating maintenance of the bearing is finished. After the pressing is finished, the pressing disc 530 is opened, and the grease supporting plate 620 and the bearing reset under the elasticity of the grease pressing spring 420; when the pedal 332 is stepped on by a foot, the power shaft moves downwards, and the power shaft moves downwards to drive the ejection shaft to move upwards, so that most of the bearing is ejected out of the grease cavity 611 to be convenient for taking out the bearing, and then the bearing is taken out.

An oil inlet hole 322 is formed in a part of the ejection shaft 320, which is located in the oil supplementing cavity 231, the oil inlet hole 322 is communicated with the bottom of the oil passing cavity 324 through a communication hole 323, one end of the oil passing cavity 324, which is located in the grease cavity 611, is communicated with one end of an oil discharge hole 325, and the other end of the oil discharge hole 325 penetrates through the ejection shaft 320 and is communicated with the grease cavity 611. The oil passing chamber 324 and the oil discharge hole 325 are provided in the knock-out shaft 320. When the bearing 900 is pressed down, the ejector shaft also moves down, so that the piston 240 is driven to move down, the piston presses the lubricating grease in the oil supply chamber 231, the lubricating grease passes through the oil inlet hole 322 and the communication hole 323, enters the oil passage chamber 324, then moves up along the oil passage chamber 324, and passes through the oil discharge hole 325, so that the lubricating grease in the grease chamber 611 is supplied.

Preferably, the communication hole 323 communicates with the oil passing chamber 324 through a check valve assembly for allowing the grease to enter the oil passing chamber 324 only from the communication hole 323 and not to reversely flow from the oil passing chamber 324 into the communication hole 323. The check valve group comprises a sealing plug 710, a check valve plate 720 and a check hinge block 750, the check hinge block 750 is installed on the bottom end face of the oil passing cavity 324, the check hinge block 750 is hinged with one end of the check valve plate 720 through a check rotating shaft 730, and the sealing plug 710 is made of elastic and soft materials, such as rubber; the sealing plug 710 is fixed on the check valve plate 720, one end of the check valve plate 720, which is far away from the sealing plug 710, of the one-way rotating shaft 730 is assembled with one end of a spring piece 740, the other end of the spring piece 740 is assembled with the bottom end surface of the oil passing cavity 324, the spring piece 740 has elasticity and is used for applying elastic thrust to the check valve plate 720 to rotate towards the communication hole 323, and the sealing plug 710 is pressed with the top end surface of the communication hole 323 to seal the communication hole 323. In the initial state, the sealing plug 710 maintains a sealed state with the communication hole 323. When the piston moves down, the pressure of the grease increases, thereby pushing the sealing plug 710 open against the elastic force of the spring piece and then into the oil passing chamber 324. This design is mainly to avoid that the lubricating grease is sucked back into the oil replenishment chamber 231 from the grease chamber 611.

Preferably, the oil tank 220 is hollow and has a storage chamber 221, the storage chamber 221 is communicated with the oil replenishing chamber 231 through a check valve, and the flow direction of the check valve is from the storage chamber 221 to the oil replenishing chamber 231. This design enables the lubricating grease in the storage chamber 221 to be sucked into the oil-replenishing chamber 231 when the piston moves upward. The check valve comprises a valve casing 710, a first inserting end 811 and a second inserting end 812 are respectively arranged at two ends of the valve casing 810, a hollow valve cavity 813 is arranged in the middle of the valve casing 810, a check partition plate 820 is arranged in the valve cavity 813, and a check hole 821 is arranged on the check partition plate 820. The first inserting end 811 and the second inserting end 812 are respectively communicated with the storage cavity 221 and the oil supplementing cavity 231, another one-way valve assembly is mounted on the one-way partition plate 820 and comprises a sealing plug 710, a one-way valve plate 720 and a one-way hinge block 750, the one-way hinge block 750 is mounted on the one-way partition plate 820, the one-way hinge block 750 is hinged with one end of the one-way valve plate 720 through a one-way rotating shaft 730, and the sealing plug 710 is made of elastic and soft materials, such as rubber; sealing plug 710 is fixed on one-way valve plate 720, one end of one-way valve plate 720, which is far away from sealing plug 710, one end of one-way rotating shaft 730 is assembled with one end of spring piece 740, the other end of spring piece 740 is assembled with the bottom end surface of oil passing cavity 324, spring piece 740 has elasticity and is used for applying elastic thrust to one-way valve plate 720 to rotate towards one-way hole 821, and sealing plug 710 is pressed with one end of one-way hole 821 to seal one-way hole 821. In the initial state, the sealing plug 710 maintains a sealed state with the one-way hole 821. When the piston moves upwards, the negative pressure generated by the oil supplementing cavity is increased, so that the sealing plug 710 is opened against the elastic force of the spring piece, and the lubricating grease in the storage cavity enters the oil supplementing cavity 231. This design allows for continuous replenishment of grease to the grease chamber 611 during use, thereby compensating for the amount of grease consumed by the bearing lubrication, and also ensuring long-term use without the need for manual grease addition to the grease chamber.

The details of the present invention are well known to those skilled in the art.

The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the teachings of the present invention without undue experimentation. Therefore, the technical solutions that can be obtained by a person skilled in the art through logic analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection defined by the claims.

Claims

1. The utility model provides a subway axle box bearing lubricating oil pressure equipment frock, includes that curb plate, curb plate top install roof, characterized by: the top plate is provided with a grease cylinder and a hinged upright rod, the hinged upright rod is hinged with one end of a hinged cross rod through a hinged pin, and the hinged cross rod is sleeved with a sleeve; the sleeve is hinged with one end of a pressing connecting rod through a rotating shaft, the other end of the pressing connecting rod is assembled with a pressing disc, the pressing disc is used for pressing the top end face of the bearing so as to press the bearing into a grease cylinder, and lubricating grease is filled in the grease cylinder;

the inner part of the grease cylinder is a hollow grease cavity, and a grease supporting plate is clamped in the grease cavity and can be axially and slidably arranged in the grease cavity; the top surface of the grease supporting plate is fixed with a supporting plate guide shaft, and the bottom of the grease supporting plate is assembled and fixed with the top of the ejection shaft; and a part of the ejection shaft, which is positioned between the grease supporting plate and the bottom surface of the grease cavity, is sleeved with a grease pressure spring, and the grease pressure spring is used for applying elastic force to the grease supporting plate to prevent the grease supporting plate from moving downwards.

2. The subway axle box bearing lubricating oil press fitting tool as claimed in claim 1, wherein: the sleeve is fixedly assembled with the hinged cross rod through a sleeve screw.

3. The subway axle box bearing lubricating oil press fitting tool as claimed in claim 2, wherein: the hinged cross rod is provided with a limiting ring, and the limiting ring is used for limiting the maximum displacement of the sleeve moving to the hinged vertical rod.

4. The subway axle box bearing lubricating oil press fitting tool as claimed in claim 1, wherein: the grease supporting plate is provided with a plurality of through oil holes for lubricating grease to pass through.

5. The subway axle box bearing lubricating oil press fitting tool as claimed in claim 1, wherein: the ejection shaft sequentially passes through the grease cylinder, the top plate, the oil supplementing cylinder, the partition plate and the retaining block and can be assembled with the partition plate and the retaining block in an axial sliding mode, the partition plate and the retaining block are mounted on the two side plates, a first tooth groove part is arranged at the bottom of the ejection shaft, the first tooth groove part forms an ejection rack part on the ejection shaft, the ejection rack part is in meshing transmission with one side of a gear, the other side of the gear is in meshing transmission with a power rack part, and the power rack part is formed by a second tooth groove arranged on a power shaft; the gear is circumferentially and rotatably arranged in a gear groove through a gear shaft, the gear groove is arranged in the holding block, and the power shaft is clamped with the holding block and can be axially assembled in a sliding manner; the bottom of the power shaft penetrates through the retaining block and then is assembled and fixed with the pedal.

6. The subway axle box bearing lubricating oil press fitting tool as claimed in claim 5, wherein: the top of the power shaft penetrates through the retaining block and then is assembled and fixed with the shaft end limiting ring, and a power spring is sleeved on the part of the power shaft, which is positioned between the shaft end limiting ring and the retaining block, and is used for applying elastic damping for preventing the power shaft from moving downwards.

7. The subway axle box bearing lubricating oil press fitting tool as claimed in claim 5, wherein: an oil tank and an oil supplementing cylinder are arranged between the partition plate and the top plate, a hollow oil supplementing cavity is arranged in the oil supplementing cylinder, a piston is arranged in the oil supplementing cavity in a sealing and axially sliding manner, and the piston is sleeved and fixed on the ejection shaft;

8. The subway axle box bearing lubricating oil press fitting tool as claimed in claim 7, wherein: the communication hole is communicated with the oil passing cavity through a one-way valve assembly; the check valve group comprises a sealing plug, a check valve plate and a check hinge block, the check hinge block is arranged on the bottom end face of the oil passing cavity and is hinged with one end of the check valve plate through a check rotating shaft, and the sealing plug is made of elastic and soft materials; the sealing plug is fixed on the one-way valve plate, the one-way valve plate is far away from the sealing plug, one end of the one-way rotating shaft is assembled with one end of the spring piece, the other end of the spring piece is assembled with the bottom end face of the oil passing cavity, the spring piece is provided with elasticity and used for applying elastic thrust rotating towards the communicating hole to the one-way valve plate, and the sealing plug is tightly pressed with the top end face of the communicating hole to.

9. The subway axle box bearing lubricating oil press fitting tool as claimed in claim 8, wherein: the oil tank is inside to be hollow has the storage chamber, and the storage chamber passes through check valve and mends the oil chamber intercommunication, and the flow direction of check valve is for being flowed to the oil chamber of mending by the storage chamber.

10. The subway axle box bearing lubricating oil press fitting tool as claimed in claim 9, wherein: the check valve comprises a valve casing, a first insertion end and a second insertion end are respectively arranged at two ends of the valve casing, a hollow valve cavity is arranged in the middle of the valve casing, a check partition disc is arranged in the valve cavity, and a check hole is formed in the check partition disc; the first inserting end and the second inserting end are respectively communicated with the storage cavity and the oil supplementing cavity, the one-way partition disc is provided with another one-way valve assembly, the one-way valve assembly comprises a sealing plug, a one-way valve plate and a one-way hinge block, the one-way hinge block is arranged on the one-way partition disc and is hinged with one end of the one-way valve plate through a one-way rotating shaft, and the sealing plug is made of elastic and soft materials; the sealing plug is fixed on the one-way valve plate, the one-way valve plate is far away from the sealing plug, one end of the one-way rotating shaft is assembled with one end of the spring piece, the other end of the spring piece is assembled with the bottom end face of the oil passing cavity, the spring piece is elastic and used for applying elastic thrust rotating towards the one-way hole to the one-way valve plate, and the sealing plug is tightly pressed with one end of the one-way hole to seal the one.