CN103769844A - Mounting tool for mounting bearings to mounting shaft - Google Patents

Mounting tool for mounting bearings to mounting shaft Download PDF

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Publication number
CN103769844A
CN103769844A CN201210407894.7A CN201210407894A CN103769844A CN 103769844 A CN103769844 A CN 103769844A CN 201210407894 A CN201210407894 A CN 201210407894A CN 103769844 A CN103769844 A CN 103769844A
Authority
CN
China
Prior art keywords
bearing
nut
hydraulic
mounting
installation shaft
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201210407894.7A
Other languages
Chinese (zh)
Inventor
魏所明
徐桂清
侯志强
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
COFCO ENGINEERING EQUIPMENT (ZHANGJIAKOU) Co Ltd
Original Assignee
COFCO ENGINEERING EQUIPMENT (ZHANGJIAKOU) Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by COFCO ENGINEERING EQUIPMENT (ZHANGJIAKOU) Co Ltd filed Critical COFCO ENGINEERING EQUIPMENT (ZHANGJIAKOU) Co Ltd
Priority to CN201210407894.7A priority Critical patent/CN103769844A/en
Publication of CN103769844A publication Critical patent/CN103769844A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23PMETAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P19/00Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
    • B23P19/02Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for connecting objects by press fit or for detaching same
    • B23P19/027Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for connecting objects by press fit or for detaching same using hydraulic or pneumatic means

Abstract

The invention discloses a mounting tool for mounting a bearing to a mounting shaft. The mounting tool comprises a hydraulic pump (1), a hydraulic nut (2) and an oil delivery pipe, the hydraulic pump (1) is connected with the hydraulic nut (2) through the oil delivery pipe, the hydraulic nut (2) comprises a nut body (21) and an annular piston (22), an annular groove is formed in one side of the nut body (21), the annular piston (22) is embedded in the annular groove in an axial movable mode, a first oil inlet (23) communicated with the annular groove is formed in the nut body (21), the nut body (21) can be in threaded connection with the mounting shaft (4), and the annular piston (22) is located between the nut body (21) and the bearing (3). By using the tool for mounting the bearing, the mounting of the bearing can be achieved conveniently, and the bearing cannot be damaged.

Description

For bearing is installed to the erecting tools in installation shaft
Technical field
The present invention relates to attaching/detaching apparatus field, particularly, relate to a kind of for bearing being installed to the erecting tools in installation shaft.
Background technology
In the time of equipment processing and maintenance, often to run into the dismounting problem of bearing.The dismounting quality of bearing directly affects duty and the service life of bearing, in fact, has assembling improper cause of many mechanical breakdowns due to bearing.So the dismounting for bearing should give enough attention.
Traditional bearing dismantling form majority is manipulator dynamic formula, modes such as striking, pound as adopted, and this mode is easy to axle and bearing to damage, and then can affect the normal operation of equipment, shortens the service life of equipment.
Summary of the invention
The object of this invention is to provide a kind ofly for bearing being installed to the erecting tools in installation shaft, this erecting tools can be installed to bearing in installation shaft easily.
To achieve these goals, the invention provides a kind of for bearing being installed to the erecting tools in installation shaft, this erecting tools comprises hydraulic pump, hydraulic nut and petroleum pipeline, described hydraulic pump is connected with described hydraulic nut by described petroleum pipeline, described hydraulic nut comprises nut body and annular piston, one side of this nut body is formed with cannelure, described annular piston can axially movably be flush-mounted in described cannelure, on described nut body, be provided with the first fuel feed hole communicating with described cannelure, described nut body can be threaded onto in described installation shaft, described annular piston is between described nut body and described bearing.
Preferably, have the first fittings body on described hydraulic pump, on this first fittings body, be provided with device for pressure measurement, described petroleum pipeline is connected between described fittings body and hydraulic nut.
Preferably, in described installation shaft, for being installed, the position of described bearing is formed as the reducing portion that diameter expands gradually.
Preferably, between described annular piston and the side face of described cannelure, be provided with sealing ring.
Preferably, described hydraulic pump is hydraulic hand-pump.
By technique scheme, to open after hydraulic pump, hydraulic oil enters in cannelure through fuel feed hole, and the oil pressure in cannelure increases, and promotes annular piston to bearing one side shifting, thereby makes annular piston promote bearing to operating position one side shifting.Hydraulic nut promotes bearing and moves to operating position under oil pressure effect, realizes easily the installation of bearing with this, and can not damage bearing.
Other features and advantages of the present invention are described in detail the specific embodiment part subsequently.
Accompanying drawing explanation
Accompanying drawing is to be used to provide a further understanding of the present invention, and forms a part for description, is used from explanation the present invention, but is not construed as limiting the invention with the specific embodiment one below.In the accompanying drawings:
Fig. 1 is provided by the invention for bearing being installed to the schematic elevational view of the hydraulic pump of the erecting tools in installation shaft;
Fig. 2 be mounted in installation shaft according to the main cutaway view of the hydraulic nut of erecting tools of the present invention;
Fig. 3 be mounted in installation shaft according to the main cutaway view of the jockey of extracting tool of the present invention;
Fig. 4 be mounted in installation shaft according to the left half sectional view of the jockey of extracting tool of the present invention.
Description of reference numerals
1 hydraulic pump 11 first fittings body 12 Pressure gauges
2 hydraulic nut 21 nut body 22 annular pistons
23 first fuel feed hole 24 sealing ring 3 bearings
4 installation shaft 41 reducing portion 42 first oilholes
The stifled bolt of 43 second oilhole 44 oil groove 45 oil
5 jockey 51 second fittings body 52 clips
53 clamping screw 54 sealing shroud 55 second fuel feed holes
The specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is elaborated.Should be understood that, the specific embodiment described herein only, for description and interpretation the present invention, is not limited to the present invention.
As depicted in figs. 1 and 2, provide according to one embodiment of the present invention for bearing being installed to the erecting tools in installation shaft, this erecting tools comprises hydraulic pump 1, hydraulic nut 2 and petroleum pipeline (not shown), hydraulic pump 1 is connected with hydraulic nut 2 by petroleum pipeline, hydraulic nut 2 comprises nut body 21 and annular piston 22, one side of nut body 21 is formed with cannelure (not shown), annular piston 22 can axially movably be flush-mounted in cannelure, on nut body 21, be provided with the first fuel feed hole 23 communicating with cannelure, nut body 21 is threaded onto in installation shaft 4, annular piston 22 is between nut body 21 and bearing 3.
While using above-mentioned erecting tools, first take bearing 3 to installation position, again hydraulic nut 2 is threadably fastened in installation shaft 4, the working face of annular piston 22 is resisted against on bearing 3 as much as possible, open hydraulic pump 1 to hydraulic nut 2 fuel feeding, hydraulic oil enters in cannelure through the first fuel feed hole 23, and the oil pressure in cannelure increases, to promote annular piston 22 to bearing 3 one side shiftings, thereby make annular piston 22 promote bearing 3 to operating position one side shifting.Hydraulic nut 2 promotes bearing 3 and moves to operating position under oil pressure effect, realizes easily the installation of bearing with this, and can not damage bearing.
Preferably, have the first fittings body 11 on hydraulic pump 1, on this first fittings body 11, be provided with device for pressure measurement, petroleum pipeline is connected between the first fittings body 11 and hydraulic nut 2.Device for pressure measurement can be measured the output pressure of hydraulic pump 1.Device for pressure measurement can be for example Pressure gauge 12.By device for pressure measurement is set, can realize the quantification of the best operational position of bearing.Particularly, can be determined by experiment the corresponding output pressure value of hydraulic pump 1 or scope in the time that bearing 3 is mounted to best operational position, this output pressure value or scope are write down, with this, in the time need to identical bearing being installed in working environment of the same race, only need as stated above bearing and erecting tools be prepared put in place, primer fluid press pump be also adjusted to described output pressure value or the scope of being write down by force value, can realize bearing convenience and be mounted to exactly best operational position.
In installation shaft 4, for being installed, the position of bearing 3 can be formed as the reducing portion 41 that diameter expands gradually.Now, bearing 3 is correspondingly conical bearing.Should be appreciated that, when install the position of bearing 3 be diameter expand gradually reducing portion 41 time, the best operational position of bearing 3 is corresponding to output pressure value or the scope of a specific hydraulic pump, so time use described erecting tools especially favourable.
For preventing that hydraulic oil from, from the gap of doing between annular piston 22 and cannelure sidewall to relatively move to external leakage, preferably, can arrange sealing ring 24 between annular piston 22 and the side face of cannelure.
Described hydraulic pump 1 can be various types of hydraulic pumps, for example, be hydraulic hand-pump.
The present invention is described in installation below in conjunction with the grinding roller bearing in flour mill in more detail.Flour mill bearing uses SKF bearing conventionally, and this bearing price is more expensive, the too tight or too loose service life that all can affect bearing of installation, and be the work that need frequently carry out to its installation, now, use above-mentioned erecting tools can reach good effect.Particularly, applicant is by repeatedly testing and draw: when hydraulic pump oil pressure is added to 6-8.5MPa, more accurately, while being added to 7-7.5MPa, grinding roller bearing is mounted to best operational position.Therefore, when needs are arranged on while SKF bearing being installed on grinding roller, only the oil pressure of hydraulic pump need be adjusted to 7-7.5MPa, can make bearing be in place.
As Fig. 1, shown in Fig. 3 and Fig. 4, the present invention discloses a kind of extracting tool for bearing is removed from installation shaft, in installation shaft 4, be provided with along the oilhole radially extending of installation shaft 4 with along the axially extended oil groove 44 of installation shaft 4, oilhole comprises the first oilhole 41 and is arranged on the second oilhole 43 on the bearing installation portion of installation shaft 4, the first oilhole 41 is communicated with the second oilhole 43 by oil groove 44, extracting tool comprises hydraulic pump 1, jockey 5 and petroleum pipeline, hydraulic pump 1 is connected with jockey 5 by petroleum pipeline, jockey 5 comprises second fittings body 51 with sealing shroud 54 and the clip 52 with clamping screw 53, the second fittings body 51 is flush-mounted on clip 52 regularly and one end is resisted against in installation shaft 4, clip 52 is set in installation shaft 4 and by clamping screw 53 and is fixed in installation shaft 4.
While using above-mentioned extracting tool, can first jockey 5 be sleeved in installation shaft 4, aim at after the first oilhole 42 at the second fuel feed hole 55 that guarantees the second fittings body 51, tighten clamping screw 53, so that jockey 5 is fixed in installation shaft 4.Stop up the port of oil groove 44, then open hydraulic pump 1, hydraulic oil enters in the first oilhole 42 by the second fittings body 51, then arrives the second oilhole 43 by oil groove 44.Along with the rising of oil pressure in the second oilhole 43, the active force that hydraulic oil applies the inner surface of bearing 3 increases, thereby makes bearing's looseness, with this, bearing is pulled down.
By technique scheme, can easily bearing be pulled down from installation shaft, and effectively avoid the infringement to bearing.
Can use various ways to stop up the port of oil groove 44, the port of oil groove 44 that for example can be in installation shaft 4 arranges the stifled bolt 45 of oil.
For jockey 5 is more stably arranged in installation shaft 4, preferably, clamping screw 53 and the second fittings body 51 can be arranged on clip 52 relative to one another.
Clip 52 can be formed as various suitable shapes, for example annular or " mouth " font.For the second fittings body 51 and clamping screw 53 are installed more easily, clip 52 is roughly formed as " mouth " font.
Below describe by reference to the accompanying drawings the preferred embodiment of the present invention in detail; but; the present invention is not limited to the detail in above-mentioned embodiment; within the scope of technical conceive of the present invention; can carry out multiple simple variant to technical scheme of the present invention, these simple variant all belong to protection scope of the present invention.
It should be noted that in addition each the concrete technical characterictic described in the above-mentioned specific embodiment, in reconcilable situation, can combine by any suitable mode.For fear of unnecessary repetition, the present invention is to the explanation no longer separately of various possible combinations.
In addition, between various embodiment of the present invention, also can be combined, as long as it is without prejudice to thought of the present invention, it should be considered as content disclosed in this invention equally.

Claims (5)

1. one kind for being installed to bearing the erecting tools in installation shaft, it is characterized in that, this erecting tools comprises hydraulic pump (1), hydraulic nut (2) and petroleum pipeline, described hydraulic pump (1) is connected with described hydraulic nut (2) by described petroleum pipeline, described hydraulic nut (2) comprises nut body (21) and annular piston (22), one side of this nut body (21) is formed with cannelure, described annular piston (22) can axially movably be flush-mounted in described cannelure, on described nut body (21), be provided with the first fuel feed hole (23) communicating with described cannelure, described nut body (21) can be threaded onto in described installation shaft (4), described annular piston (22) is positioned between described nut body (21) and described bearing (3).
2. erecting tools according to claim 1, it is characterized in that, on described hydraulic pump (1), have the first fittings body (11), on this first fittings body (11), be provided with device for pressure measurement, described petroleum pipeline is connected between described the first fittings body (11) and hydraulic nut (2).
3. erecting tools according to claim 2, is characterized in that, described installation shaft (4) is formed as for the position of bearing (3) is installed the reducing portion (41) that diameter expands gradually.
4. erecting tools according to claim 3, is characterized in that, is provided with sealing ring (24) between described annular piston (22) and the side face of described cannelure.
5. erecting tools according to claim 1, is characterized in that, described hydraulic pump (1) is hydraulic hand-pump.
CN201210407894.7A 2012-10-23 2012-10-23 Mounting tool for mounting bearings to mounting shaft Pending CN103769844A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201210407894.7A CN103769844A (en) 2012-10-23 2012-10-23 Mounting tool for mounting bearings to mounting shaft

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201210407894.7A CN103769844A (en) 2012-10-23 2012-10-23 Mounting tool for mounting bearings to mounting shaft

Publications (1)

Publication Number Publication Date
CN103769844A true CN103769844A (en) 2014-05-07

Family

ID=50562854

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201210407894.7A Pending CN103769844A (en) 2012-10-23 2012-10-23 Mounting tool for mounting bearings to mounting shaft

Country Status (1)

Country Link
CN (1) CN103769844A (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070245563A1 (en) * 2006-04-21 2007-10-25 Smith John A Extractor
CN201264155Y (en) * 2008-09-25 2009-07-01 西部钻探吐哈钻井公司 Drill pump main bearing removing device
WO2010115417A1 (en) * 2009-04-11 2010-10-14 Schaeffler Technologies Gmbh & Co. Kg Hydraulic mounting device, method for applying inner rings and hydraulic pump
DE102010048250A1 (en) * 2010-10-12 2012-04-12 Schaeffler Technologies Gmbh & Co. Kg Hydraulic mounting device for pressing inner rings of roller bearings on hydraulic assembly, has measuring unit that determines amount of hydraulic fluid supplied by operation of pump based on motorized/external energy
CN202910550U (en) * 2012-10-23 2013-05-01 中粮工程装备(张家口)有限公司 Installation tool used for installing bearing on installation shaft

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070245563A1 (en) * 2006-04-21 2007-10-25 Smith John A Extractor
CN201264155Y (en) * 2008-09-25 2009-07-01 西部钻探吐哈钻井公司 Drill pump main bearing removing device
WO2010115417A1 (en) * 2009-04-11 2010-10-14 Schaeffler Technologies Gmbh & Co. Kg Hydraulic mounting device, method for applying inner rings and hydraulic pump
DE102010048250A1 (en) * 2010-10-12 2012-04-12 Schaeffler Technologies Gmbh & Co. Kg Hydraulic mounting device for pressing inner rings of roller bearings on hydraulic assembly, has measuring unit that determines amount of hydraulic fluid supplied by operation of pump based on motorized/external energy
CN202910550U (en) * 2012-10-23 2013-05-01 中粮工程装备(张家口)有限公司 Installation tool used for installing bearing on installation shaft

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Application publication date: 20140507