CN110065871A - The replacing options of pulley gear and pulley main body - Google Patents
The replacing options of pulley gear and pulley main body Download PDFInfo
- Publication number
- CN110065871A CN110065871A CN201811412600.3A CN201811412600A CN110065871A CN 110065871 A CN110065871 A CN 110065871A CN 201811412600 A CN201811412600 A CN 201811412600A CN 110065871 A CN110065871 A CN 110065871A
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- China
- Prior art keywords
- rotary shaft
- pulley
- main body
- bracket
- pulley main
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B7/00—Other common features of elevators
- B66B7/02—Guideways; Guides
- B66B7/023—Mounting means therefor
Abstract
The present invention provides can be from the easy elevator pulley gear of adjustment operation of the axial unilateral replacement operation and pulley core for carrying out pulley main body of the pulley gear of the Machine Room for being set to elevator etc..The pulley gear is arranged between two beams, and to be configured to direction consistent with the rope sheave core of hoist engine for pulley core, which is characterized in that have: the first bracket is installed on the beam of a side；Second bracket is installed on the beam of another party；Rotary shaft is arranged between two brackets；And pulley main body, it is rotatably freely supported on the rotary shaft via bearing, first bracket, which remains one end of the rotary shaft, not to be rotated, second bracket remains the other end of the rotary shaft detachable, also, the rotary shaft has the stage portion thicker than other parts between first bracket and the pulley main body.
Description
Technical field
The present invention relates to the replacements of the pulley gear of the Machine Room for being set to elevator etc. and the pulley main body of the pulley gear
Method.
Background technique
Firstly, being summarized using Fig. 6, Fig. 7 the pulley gear for lift appliance.
Fig. 6 is the perspective view summarized the overall structure of lift appliance, is shown logical in the lifting gone up and down for carriage 104
The top in road 101 has the lift appliance of Machine Room 100.The Machine Room 100 is provided with hoist engine 106 and pulley gear 1,
The pulley main body 1a of the rope sheave 106a of hoist engine 106 and pulley gear 1 is around hanging with main hoist cable 107.By in the main hoist cable 107
Carriage 104 is installed in one end, and installs balance weight 105 in the other end, thus by carriage 104 and balance weight 105 with 1: 1 lanyard
Mode is suspended in midair.Moreover, suitably carry out rotation control by the rope sheave 106a to hoist engine 106, so as to by main hoist cable 107
Desired amount is rolled, carriage 104 is made to be elevated to desired position.It should be noted that being provided in liftway 101
A pair of of the carriage side rails 103 guided to the lifting of carriage 104 the and lifting of balance weight 105 is guided one
To balance weight side rails 102, thereby, it is possible to go up and down carriage 104 steadily with balance weight 105.
In addition, Fig. 7 is the top view of Machine Room 100.As shown here, from the entrance 100a from Machine Room 100
It is provided with the hoisting mechanism comprising the main hoist cable 107 including hoist engine 106, pulley gear 1 near inboard wall, separates regulation
Distance be additionally provided with governor 108, control panel 109.The hoisting mechanism is configured to, so that the rotary shaft and cunning of rope sheave 106a
The parallel mode of the rotary shaft of wheel body 1a configures hoist engine 106 and pulley gear 1, more specifically, so that rope sheave 106a
The consistent mode in direction of the pulley core of rope sheave core and pulley main body 1a configures rope sheave 106a and pulley main body 1a in beam 9a, 9b
Between.
Conventional example as elevator pulley used herein, it is known to technology documented by patent document 1.In the document
Fig. 1 etc. in record following pulley, which has the axis for having step in axial central part, supports via bearing
In the axis pulley main body 1a and be set to pulley main body 1a outside bearing plate.
Citation
Patent document
Patent document 1: Japanese Unexamined Patent Application 61-223369 bulletin
Summary of the invention
Subject to be solved by the invention
Illustrate an example of existing pulley gear as patent document 1 used as Fig. 9 of its vertical sectional view.Such as
Shown here, pulley main body 1a is provided with around the main hoist cable slot for hanging main hoist cable 107, in the two sides of pulley main body 1a in its periphery
There are two bearings 2 for indentation in coaxial fashion for centre.Moreover, these bearings 2 fall off in order to prevent, on the two sides of pulley main body 1a
Bearing plate 31 is fixed with by bearing plate fixing bolt 32.To bearing 2 be inserted into rotary shaft 3, with the rotary shaft 3 be axis and
Rotate pulley main body 1a.In addition, the axial central portion in rotary shaft 3 is provided with the stage portion 3a of particle size, to bearing 2 into
Line position sets fixation, and prevents pulley main body 1a from moving along axial.At the both ends of rotary shaft 3, rotary shaft 3 is from bracket in order to prevent
5a, 5b fall off or rotary shaft 3 itself rotates and is embedded in keypad 7 to the keyway of rotary shaft 3, which passes through keypad fixing bolt 8
It is fixed on bracket 5a, 5b.Bracket 5a, 5b pass through bracket fastening respectively and are fixed on beam 9a, 9b, beam 9a, 9b warp with bolt 10a, 10b
The ground of Machine Room 100 is set to by other structures body.According to this structure, main hoist cable 107 can be made to be applied to pulley master
The load of body 1a via bearing 2, rotary shaft 3, bracket 5a, 5b, beam 9a, 9b and by the ground supporting of Machine Room 100.It needs to illustrate
, pair of right and left beam 9a, 9b are also integrally constituted sometimes, in addition, bracket 5a and beam 9a, bracket 5b and beam 9b can also distinguish
It is integrally constituted.
As illustrated in Fig. 7, Machine Room 100 is that hoist engine 106, governor 108, control panel can be arranged in most cases
Therefore 109 equal minimal width are unable to ensure enough working spaces in Machine Room 100 in most cases.Fig. 9
Pulley gear 1 be configured to by be arranged rotary shaft 3 stage portion 3a and bearing plate 31 make pulley main body 1a, bearing 2, rotation
This three in one of shaft 3, therefore, even if also being needed in the case where wanting only to replace pulley main body 1a because of reasons such as abrasions
By the unified disassembly of three, after splitting to them, pulley main body 1a is only replaced, and three is assembled integrally, then,
Integrated pulley main body 1a etc. is installed on hoisting mechanism again.Rotary shaft 3 is being dismantled or installed relative to bracket 5a, 5b
When, it needs to carry out operation in two sides of the side bracket 5a and the side bracket 5b therefore to set in hoisting mechanism as shown in Figure 7 close to wall
In the case where setting, the operation in the narrow space of the side beam 9b is also generated, there are this big projects of the burden of operator.
In addition, after the replacement of pulley main body 1a, as shown in figure 8, needing to be adjusted the work of the configuration of pulley main body 1a
Industry, so that the rope sheave core of rope sheave 106a is consistent with the direction of the pulley core of pulley main body 1a.The adjustment operation is needed by pulley
Main body 1a is carried out in the state of being installed on bracket 5a, 5b, but in Fig. 9 structure, is not had after being installed on bracket 5a, 5b
The mechanism of the position of pulley main body 1a is adjusted, therefore, there is also the adjustment operations in the direction for being difficult to carry out rope sheave core and pulley core
This problem.
Solution
In order to solve above-mentioned problem, pulley gear of the invention is arranged between two beams, and the pulley core side of being configured to
To consistent with the rope sheave core of hoist engine, the pulley gear has: the first bracket is installed on the beam of a side；Second bracket,
It is installed on the beam of another party；Rotary shaft is arranged between two brackets；And pulley main body, it is rotated via bearing certainly
It such as is supported on the rotary shaft, first bracket, which remains one end of the rotary shaft, not to be rotated, and second bracket will
The other end of the rotary shaft remains detachable, also, the rotary shaft is in first bracket and the pulley main body
Between have the stage portion thicker than other parts.
Invention effect
In accordance with the invention it is possible to only implement pulley replacement operation from the unilateral of pulley gear, therefore, even if in Machine Room
It also being capable of readily replaceable pulley in the case where narrow.In addition, rotary shaft can not be dismantled when carrying out pulley replacement operation and more
Therefore the benchmark that the stage portion changed pulley main body, also, be set to rotary shaft becomes pulley positioning is capable of providing and is easy to make to restrict
The consistent pulley gear in the direction of core wheel and pulley core.
Project, structure and effect other than described are defined by the explanation of following implementation.
Detailed description of the invention
Fig. 1 is the cross-sectional view of the pulley gear of embodiment 1.
Fig. 2 is the cross-sectional view of the pulley gear of embodiment 2.
Fig. 3 is the cross-sectional view of the pulley gear of embodiment 3.
Fig. 4 is the main view of the wedge-type lantern ring of embodiment 3.
Fig. 5 is the cross-sectional view of the pulley gear of embodiment 4.
Fig. 6 is the perspective view using the lift appliance of Winch for elevator of the invention.
Fig. 7 is the top view using the elevator machine room of Winch for elevator of the invention.
Fig. 8 is the concept map of the mutual core adjustment of rope sheave core and pulley core.
Fig. 9 is the cross-sectional view of existing pulley gear.
Description of symbols:
1 pulley gear,
1a pulley main body,
1b stage portion,
2 bearings,
3 rotary shafts,
3a, 3b stage portion,
The threaded portion 3c,
4 lantern rings,
5a, 5b bracket,
6 nuts,
7 keypads,
8 keypad fixing bolts,
9a, 9b beam,
10a, 10b bracket fastening bolt,
11 washers,
20 limit screws,
21 wedge-type lantern rings,
21a, 21b slit,
21c bolt fixing hole,
21d bolt through hole,
22 wedge bolts,
23 lifting bolts,
31 bearing plates,
32 bearing plate fixing bolts,
100 Machine Rooms,
100a entrance,
101 liftways,
102 balance weight side rails,
103 carriage side rails,
104 carriages,
105 balance weights,
106 hoist engines,
106a rope sheave,
107 main hoist cables,
108 governors,
109 control panels.
Specific embodiment
Hereinafter, being illustrated using Fig. 1 to Fig. 5 to the embodiment of the present invention 1~4.
[embodiment 1]
Hereinafter, illustrating the pulley gear 1 of the embodiment of the present invention 1 according to Fig. 1.It should be noted that with Fig. 6 to Fig. 9
The common ground of the existing structure of middle explanation omits repeated explanation.
Fig. 1 is the vertical sectional view of the pulley gear 1 of embodiment 1.It is directed at while compared with the Fig. 9 for showing existing structure
The feature of the present embodiment shown in FIG. 1 is illustrated.
Existing rotary shaft 3 shown in Fig. 9 be configured to by the keyway at both ends be embedded in keypad 7 and be fixed on bracket 5a,
Two sides of 5b, but the rotary shaft 3 of the present embodiment shown in FIG. 1 is configured to be fixed on and being embedded in keypad 7 to the keyway of one end
Bracket 5b, further, it is possible to be fixed on by the fastening of the pressing plate and nut 6 of the washer 11 of the threaded portion for being inserted into other end 3c
Bracket 5a.It should be noted that also can replace threaded portion 3c in the other end of rotary shaft 3 and be configured to bolt mounting holes
It is set to central axis, bracket 5a is fastened using the bolt being hitherward inserted into.
In addition, in existing structure shown in Fig. 9, be configured to using the axial central portion of rotary shaft 3 stage portion 3a and
A pair of bearings pressing plate 31 to a pair of bearings 2 and has been pressed into the pulley main body 1a of a pair of bearings 2 and has positioned, but in Fig. 1 institute
In the structure of the present embodiment shown, it is configured to narrow using the internal diameter of the axial central portion setting of the inner peripheral surface in pulley main body 1a
Stage portion 1b and rotary shaft 3 the stage portion 3b of particle size that is arranged of one end and be inserted into the another side of rotary shaft 3
The substantially lantern ring 4 of circular tube shaped, even if in the not set stage portion 3a in center of rotary shaft 3, it also can be to a pair of bearings 2 and indentation
The pulley main body 1a of a pair of bearings 2 is positioned.
That is, in Fig. 9 structure, being configured to that the stage portion 3a of rotary shaft 3 is arranged between a pair of bearings 2, utilizing this
Rank portion 3a and bearing plate 31 clip each bearing 2, therefore, nothing in the state of not dismantling bearing plate 31 from pulley main body 1a
Method separates rotary shaft 3 from bearing 2.In contrast, in the structure of fig. 1, there is no the outer of rotary shaft 3 between a pair of bearings 2
Diameter is greater than the part of the internal diameter of bearing 2, therefore, if the not constraint of other component, can easily separate and rotate from bearing 2
Axis 3.
It should be noted that be provided with stage portion 1b in the inner peripheral surface of pulley main body 1a in Fig. 1, but can also take and
Instead of it is configured to, the bearing 2 of two wide cuts is arranged side by side, the width of width and pulley main body 1a which is combined
It spends identical, a pair of bearings 2 is positioned by clipping two bearings 2 by the stage portion 3b and lantern ring 4 of rotary shaft 3.?
In this case, the outer diameter that rotary shaft 3 is also not present between a pair of bearings 2 is greater than the part of the internal diameter of bearing 2, therefore, if not having
There is the constraint of other component, then easily can separate rotary shaft 3 from bearing 2.
Due to the difference of this structure, in the structure of the present embodiment of the existing structure and Fig. 1 of Fig. 9, in pulley main body
There are differences below when the replacement of 1a.
Firstly, in Fig. 9, if can not torn open after the keypad 7 for having dismantled this two side of the side bracket 5a Yu the side bracket 5b
It unloads and is therefore set to the wall side of Machine Room 100 in pulley gear 1 as shown in Figure 7 with the integrated pulley main body 1a of rotary shaft 3
And one side bracket side narrow space in the case where, the disassembly and installation of pulley main body 1a becomes difficult operation.With this phase
Right, in Fig. 1, if nut 6, the washer 11 of the disassembly side bracket 5a, the keypad 7 for not having to the disassembly side bracket 5b can dismantle cunning
Wheel body 1a, therefore, even if can also be easily removed cunning in the case where pulley gear 1 is set to the wall side of Machine Room 100
Wheel body 1a.
In addition, needing to dismantle rotary shaft 3 together with pulley main body 1a in Fig. 9, therefore, pulley main body 1a is being replaced
Later, need to adjust the direction of rotary shaft 3 again.In contrast, in Fig. 1, pulley main body 1a is separated with rotary shaft 3, because
This, can dismantle pulley main body 1a in the state that rotary shaft 3 is held in bracket 5b.Therefore, in the direction of rotary shaft 3 script
With regard in suitable situation, being not necessarily to readjust the direction of rotary shaft 3 after the replacement of pulley main body 1a.
In addition, in Fig. 9, although also can be by adjusting the fixed spiral shell of bearing plate being arranged on the two sides of pulley main body 1a
The respective fastening amount of bolt 32 adjusts the direction of pulley core, but is difficult to adjust by bracket in the state of being equipped with pulley main body 1a
The bearing plate fixing bolt 32 of 5a, 5b covering, the micro-adjustment in pulley core direction are difficult.In contrast, in Fig. 1, rotation
The face of the stage portion 3b of shaft 3 contacted with pulley main body 1a, which becomes, determines therefore the datum level in the direction of pulley core only passes through
Moderately fastening nut 6, and moderately pressed pulley main body 1a to stage portion 3b from lantern ring 4, it will be able to simply make to replace
The direction of pulley core afterwards is consistent with the direction before replacement.
The Characteristics Summary of the present embodiment described above is as follows.
First, in the replacement of pulley main body 1a, become rotation stop part due to being embedded into the keypad 7 of keyway of rotary shaft 3, because
This, only by that can be dismantled with spanner rotating nut 6.In addition, by disassembly beam 9a and bracket 5a detached collar 4, it can
Pulley main body 1a is dismantled in the state of not dismantling rotary shaft 3.
Second, in the replacement of pulley main body 1a, since pulley main body can be installed in the state of not dismantling rotary shaft 3
1a, therefore, rotary shaft 3 are able to maintain that configuration appropriate, after the replacement of pulley main body 1a, the stage portion 3a of rotary shaft 3 also at
For the axial positioning datum of pulley, also, pulley core direction is also uniquely determined by the direction of stage portion 3b.Therefore, can
Pulley main body 1a is replaced in the state of maintaining the positional relationship of rope sheave core and pulley core before replacement.
It should be noted that in the above example, the pulley gear being set as in mechanical indoor lift appliance, but rise
This structure also can be used in pulley gear in drop channel.For example, the steering pulley in the elevator of machine House-less is arranged mostly
In the wall side of liftway, therefore, by using the pulley gear of operation can be carried out from the opposite side of wall, so that replacement be made to make
Industry becomes easy.In addition, hoist engine of the invention can also apply to the lift appliance other than lift appliance shown in fig. 6.Example
Such as, roping arrangement can not also be 2: 1 lanyards for 1: 1.
[embodiment 2]
Hereinafter, illustrating the embodiment of the present invention 2 according to fig. 2.It should be noted that the common ground with above structure omits
Repeated explanation.
Fig. 2 is the vertical sectional view of the pulley gear 1 of embodiment 2.In embodiment 1, it is provided in one end of rotary shaft 3
Keyway is provided with threaded portion 3c in the other end, but in the present embodiment, is provided with keyway at the both ends of rotary shaft 3, spiral shell is omitted
Line portion 3c.
In addition, in embodiment 1, by adjusting nut 6 fastening amount and have adjusted the axial position of lantern ring 4, but
In the present embodiment, by the way that the threaded hole extended radially through is set to lantern ring 4, and to the limit screw for being inserted into the threaded hole
20 are fastened, to carry out the axial position of retaining collar 4 relative to rotary shaft 3, utilize the stage portion 3b and lantern ring of rotary shaft 3
4 clip a pair of bearings 2, thus fix the axial position of pulley main body 1a.
In the structure of the present embodiment described above, by dismantling the keypad 7 of the side bracket 5a and the limit screw of lantern ring 4
20, pulley main body 1a can be dismantled in the state of not dismantling keypad 7 of the side bracket 5b, therefore, even if being arranged in pulley gear 1
In the case where the wall side of Machine Room 100, also can easily disassembled pulley main body 1a similarly to Example 1, further, it is possible to hold
Easily readjust the core direction of pulley main body 1a.
In addition, usually when being applied axial load, the service life of bearing 2 shortens, therefore, with the fastening for passing through nut 6
And compare the embodiment 1 that axial load is applied to bearing 2, the present embodiment of bearing 2 will not be applied in axial load
In, additionally it is possible to obtain this effect of the long lifetime of bearing 2.
[embodiment 3]
Hereinafter, illustrating the embodiment of the present invention 3 according to Fig. 3, Fig. 4.It should be noted that the common ground with above structure
Omit repeated explanation.
Fig. 3 is the vertical sectional view of the pulley gear 1 of embodiment 3, and Fig. 4 is the master of wedge-type lantern ring used in the present embodiment
View.In embodiment 1,2, the lantern ring 4 for the substantially circular tube shaped for having used complete cycle connected, but in the present embodiment, having used will
Wedge-type lantern ring 21 after a part disconnection of round tube.As shown in figure 4, the wedge-type lantern ring 21 has the slit for only having cut away inner circumferential side
21a and slit 21b throughout radial whole region, in addition, having across slit 21b circumferentially perforative bolt fixing hole 21c
With bolt through hole 21d.Moreover, by being carried out to the wedge for being inserted into bolt fixing hole 21c and bolt through hole 21d with bolt 22
Fastening, so that the internal diameter of wedge-type lantern ring 21 reduces, can fix wedge-type lantern ring 21 relative to rotary shaft 3.
According to the present embodiment, following effect can also be accessed other than the effect of embodiment 2.That is, passing through wedge spiral shell
The inner peripheral surface of the fastening of bolt 22, wedge-type lantern ring 21 is contacted with the periphery of rotary shaft 3, and passes through the fastening force of wedge bolt 22,
Stronger load is generated in the interior circumferential direction of axis, as a result, compared with Example 2, wedge-type lantern ring 21 and the axial of rotary shaft 3 are protected
Holding force becomes strong.It therefore, also can be in the elevator for being applied with axial stronger load from main hoist cable 107 to pulley gear 1
Pulley gear 1 is kept in axial direction.
[embodiment 4]
Hereinafter, illustrating the embodiment of the present invention 4 according to Fig. 5.It should be noted that the common ground with above structure omits
Repeated explanation.
Fig. 5 is the vertical sectional view of the pulley gear 1 of embodiment 4.
In embodiment 1, it is fastened by the nut 6 to the threaded portion 3c for being inserted into rotary shaft 3 to fix pulley master
The axial position of body 1a fixes cunning by being fastened to the limit screw 20 for extending radially through lantern ring 4 in example 2
The axial position of wheel body 1a, in embodiment 3, by being fastened to the wedge for circumferentially running through wedge-type lantern ring 21 with bolt 22
To fix the axial position of pulley main body 1a.
In contrast, in the present embodiment, multiple bolt fixing holes are set in the opposed portion of the lantern ring 4 of bracket 5a, to slotting
The multiple lifting bolts 23 entered to the bolt fixing hole are fastened respectively, and lantern ring 4 is pressed on pulley main body 1a, utilizes step
Portion 3b and lantern ring 4 clamp a pair of bearings 2 being pressed into pulley main body 1a, thus carry out to the axial position of pulley main body 1a
It is fixed.
The present embodiment is fixed the axial position of pulley main body 1a and lantern ring 4 is pressed on pulley main body 1a
This point and embodiment 1 are general, but compared with using only the embodiment 1 of a thick threaded portion 3c, rise using multiple thin
On this point of weight bolt 23, structure was different.
In the structure of embodiment 1 shown in Fig. 1, when applying radial load to pulley main body 1a, in threaded portion, 3c is applied
Bending stress is added, therefore, it is necessary to the proportionally overstriking threaded portion 3c of the size with radial load.On the other hand, shown in Fig. 5
The present embodiment structure in, bending stress is not acted on to the lifting bolt 23 for the axial force for generating fixed pulley main body 1a and is made
With axial force, therefore, even if becoming larger to the radial stress that pulley main body 1a applies, without overstriking lifting bolt 23.In addition,
Due to that multiple lifting bolts 23 can be arranged in bracket 5a, the number of lifting bolt 23 used in increase can be passed through
To further decrease the load applied to each lifting bolt 23.
It should be noted that usually when bolt attenuates bolt weakened, also, work as bolt looseness and make fastening force
When decline, the damaged possibility of bolt is further increased, and therefore, the present embodiment of thin bolt is used in the fixation of lantern ring 4
In structure, compared with the structure of embodiment 1, need more to inhibit the loosening of bolt.Therefore, in the present embodiment, by using
Less lifting bolt 23 is loosened compared with common bolt, is able to suppress the loosening of bolt, is avoided the breakage of bolt.
As discussed above, in the present embodiment, other than the effect of the above embodiments, even if to cunning
In the case that wheel body 1a is applied with biggish radial load, also can easily it be increased by increasing the number of lifting bolt 23
Big axis intensity.
Claims (11)
1. a kind of pulley gear, it is arranged between two beams, and to be configured to direction consistent with the rope sheave core of hoist engine for pulley core,
It is characterized in that,
The pulley gear has:
First bracket is installed on the beam of a side；
Second bracket is installed on the beam of another party；
Rotary shaft is arranged between two brackets；And
Pulley main body is rotatably freely supported on the rotary shaft via bearing,
First bracket, which remains one end of the rotary shaft, not to be rotated,
Second bracket other end of the rotary shaft is remained it is detachable, also,
The rotary shaft has the stage portion thicker than other parts between first bracket and the pulley main body.
2. pulley gear according to claim 1, which is characterized in that
Rotary shaft lantern ring inserted with substantially circular tube shaped between the pulley main body and second bracket.
3. pulley gear according to claim 1, which is characterized in that
The rotary shaft is fixed in a manner of non-rotary and being embedded in keypad to the keyway of the one end for being set to the rotary shaft
In first bracket.
4. pulley gear according to claim 2, which is characterized in that
The rotary shaft side of the lantern ring is adjusted by being anchored on nut in the threaded portion of the other end setting of the rotary shaft
Upward fixation position.
5. pulley gear according to claim 2, which is characterized in that
It is adjusted in the rotary axis direction of the lantern ring by being fastened to the limit screw for extending radially through the lantern ring
Fixed position.
6. pulley gear according to claim 2, which is characterized in that
The lantern ring has slit radially, adjusts the set by being fastened to the bolt for circumferentially running through the slit
Fixation position in the rotary axis direction of ring.
7. pulley gear according to claim 2, which is characterized in that
In the position opposed with the lantern ring of second bracket through there is lifting bolt, by being carried out tightly to the lifting bolt
Gu to adjust the fixation position in the rotary axis direction of the lantern ring.
8. a kind of pulley gear, has:
Pulley main body；
Two bearings, they are pressed into coaxial fashion in the pulley main body；
Rotary shaft supports the pulley main body via the bearing；
The substantially lantern ring of circular tube shaped is inserted by the rotary shaft；And
Pair of right and left bracket, they are inserted into for the rotary shaft,
The pulley gear is characterized in that,
The pulley main body has step in the axial central portion of inner peripheral surface,
There is the keyway of installation keypad in the one end of the rotary shaft and on the outside of the axial width of the pulley main body
The stage portion to connect with the bearing, also, there is threaded portion in the another side of the rotary shaft,
The pulley main body is gripped and nut is anchored on the threaded portion by the stage portion and the lantern ring.
9. a kind of replacing options of pulley main body, are the replacing options of the pulley main body of pulley gear, pulley gear setting exists
Between two beams, and to be configured to direction consistent with the rope sheave core of hoist engine for pulley core,
It is characterized in that,
The pulley gear has:
First bracket is installed on the beam of a side；
Second bracket is installed on the beam of another party；
Rotary shaft is arranged between two brackets；
Pulley main body is rotatably freely supported on the rotary shaft via bearing；And
The substantially lantern ring of circular tube shaped is inserted by the rotary shaft,
After dismantling the bracket and beam of one end of the rotary shaft,
The institute that will be inserted by the rotary shaft in the state that bracket of the another side of the rotary shaft is equipped with the rotary shaft
State lantern ring and pulley main body disassembly.
10. the replacing options of pulley main body according to claim 9, which is characterized in that
The one end of the rotary shaft is provided with threaded portion,
Before dismantling the bracket and beam of one end of the rotary shaft, the nut dismounting of the threaded portion will be installed on.
11. the replacing options of pulley main body according to claim 9, which is characterized in that
The one end of the rotary shaft is provided with keyway,
Before dismantling the bracket and beam of one end of the rotary shaft, the keypad for being installed on the keyway is dismantled.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2018-009570 | 2018-01-24 | ||
| JP2018009570A JP2019127986A (en) | 2018-01-24 | 2018-01-24 | Pulley device, and pulley body replacement method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110065871A true CN110065871A (en) | 2019-07-30 |
| CN110065871B CN110065871B (en) | 2021-10-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811412600.3A Active CN110065871B (en) | 2018-01-24 | 2018-11-23 | Pulley device and method for replacing pulley body |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2019127986A (en) |
| CN (1) | CN110065871B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110759269A (en) * | 2019-11-05 | 2020-02-07 | 攀钢集团西昌钢钒有限公司 | Pulley block replacing method |
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Also Published As
| Publication number | Publication date |
|---|---|
| JP2019127986A (en) | 2019-08-01 |
| CN110065871B (en) | 2021-10-15 |
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