CN104709076B - Electric fork-lift truck, axle case and reducer casing cover thereof - Google Patents
Electric fork-lift truck, axle case and reducer casing cover thereof Download PDFInfo
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- CN104709076B CN104709076B CN201510133466.3A CN201510133466A CN104709076B CN 104709076 B CN104709076 B CN 104709076B CN 201510133466 A CN201510133466 A CN 201510133466A CN 104709076 B CN104709076 B CN 104709076B
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Abstract
The invention discloses an electric fork-loft truck, an axle case and a reducer casing cover thereof. An axle hole A, an axle hole B, an axle hole C and an axle hole D are formed in the reducer casing cover. The inner side of the reducer casing cover is a connecting wall connected with a middle case body. A groove A is formed by surrounding of the connecting wall. The outer side of the reducer casing box is provided with a first connecting column, a second collecting column, a third collecting column, a fourth collecting column and a connecting arm. The axes of the axle hole C and the axle hole A are located in a plane C. The distance between the axis of the axle hole C and the axis of the axle hole A is d. The plane C is a horizontal plane. The axle hole D is arranged on the rear-upper portion of the axle hole A. The horizontal distance between the axle hole D and the axle hole A ranges from 100 percent to 110 percent d. The vertical distance between the axle hole D and the plane C ranges from 40 percent to 50 percent d. The axle hole B is arranged below the plane C. The horizontal distance between the axle hole B and the axle hole A ranges from 45 percent to 55 percent d. The vertical distance between the axle hole B and the plane C ranges from 5 percent to 15 percent d. According to the installing structure and the transmission structure of the axle case, the structure, the position arranging and other aspects of parts are optimized.
Description
Technical field
The present invention relates to a kind of electri forklift, bridge case and its gear box cover.
Background technology
Electric vehicle is vented due to noiseless, or not overhaul simple, operation easily and hauling ability is superior and transported extensively
With, but many power supplys are needed due to electric vehicle energy is provided, thus electric vehicle is for fuel combustion vehicle, vehicle
Space utilization is very crucial.The driving system of electric vehicle include vehicle bridge, wheel, vehicle frame and suspension, motor via
Power is transferred to wheel by reduction box, drive axle.
The patent document of Publication No. CN202944154 discloses a kind of bridge box assembly of battery fork lift truck, and it will drive electricity
Machine is placed in parallel with drive axle and is transmitted power by speed changer, saves space so that overall more compact structure, layout
It is more reasonable；Simultaneously using the adjustable connection of supporting plate, it is easy to fork truck overall processing to assemble, traditional jaw type assembling mode is changed to
Sector connection, solves the stuck phenomenon shone because machining accuracy is bad.But by repetition test and reality in recent years
Border uses feedback, inventor think above-mentioned bridge case space layout, support strength, transmission stability, parts use
Still needed on life-span and manufacturing cost and further improve.
The content of the invention
In order to solve above-mentioned technical problem, it is an object of the invention to provide a kind of electri forklift, bridge case and its reduction box
Lid, the gear box cover is carried out excellent according to the mounting structure and drive mechanism of bridge case to aspects such as component structural, location arrangements
Change.
To achieve the above object, present invention employs following technical scheme：
The gear box cover of bridge case, the gear box cover be provided with for jack shaft is installed axis hole A, for installing duplex-gear
The axis hole B of wheel shaft, the axis hole C for installing power transmission shaft and the axis hole D for installing adapter sleeve；It is with the inside of gear box cover
Between casing engagement connection wall, the connection wall is around forming for setting jack shaft, the gear wheel of double crosslinking gear shaft, the second tooth
The groove A of wheel, first gear and input gear；The outside of gear box cover sets the first connecting pole, the second connecting pole, the 3rd connection
Post, the 4th connecting pole and linking arm, the outside of the linking arm is fixedly connected with the first axle arm；Axle for installing power transmission shaft
The axis of hole C with for install jack shaft axis hole A diameter parallel and both be generally aligned in the same plane in C, the axle of axis hole C
Line is d with the spacing of the axis of axis hole A, with plane C as horizontal plane, then, after the axis of axis hole D is located at the axis of axis hole A
Top, the axis of axis hole D is 100%~110%d, the axis of axis hole D and hanging down for plane C with the horizontal range of the axis of axis hole A
Straight distance is 40%~50%d；The axis of axis hole B is located between the axis of axis hole C and the axis of axis hole A and positioned at plane C
Lower section, the horizontal range of the axis of axis hole B and the axis of axis hole A is 45%~55%d, the axis of axis hole B and hanging down for plane C
Straight distance is 5%~15%d.
Preferably, first connecting pole, the second connecting pole and the 3rd connecting pole are located at the top of plane C, first connects
The axially bored line of installing for connecing post is 30%~40%d, the installation hole axle of the first connecting pole with the horizontal range of the axis of jack shaft
Line is 75%~85%d, the level for installing axially bored line and the axis of jack shaft of the second connecting pole with the vertical range of plane C
Distance is 55%~65%d, and the axially bored line of installing of the second connecting pole is 50%~60%d with the vertical range of plane C, and the 3rd connects
The axially bored line of installing for connecing post is 70%~80%d, the installation hole axle of the 3rd connecting pole with the horizontal range of the axis of jack shaft
Line is 15%~25%d with the vertical range of plane C；4th connecting pole is located at the lower section of plane C, the mounting hole of the 4th connecting pole
Axis is 75%~85%d, the installation axially bored line of the 4th connecting pole and hanging down for plane C with the horizontal range of the axis of jack shaft
Straight distance is 30%~40%d.
Preferably, setting the second annular mounting groove on the periphery of the linking arm.
For the bridge case of electri forklift, including gear box cover as described above.
A kind of electri forklift, including bridge case as described above.
Technical scheme of the present invention as a result of more than, the gear box cover is tied according to the mounting structure of bridge case and transmission
Structure, optimizes to aspects such as component structural, location arrangements, not only causes that drive mechanism more compact and reasonable, small volume are empty
Between utilization rate it is high, be adapted to electri forklift and install, and improve connection reliability, support strength and kinetic stability, raising is used
Life-span, reduction manufacturing cost.
Brief description of the drawings
Fig. 1 is one of stereogram of embodiment Bridge 1 case；
Fig. 2 is the two of the stereogram of embodiment Bridge 1 case；
Fig. 3 is the outline drawing of embodiment Bridge 1 case；
Fig. 4 is the left view (omitting left hand brake device) of Fig. 3；
Fig. 5 is the right view (omission right hand brake) of Fig. 3；
Fig. 6 is one of stereogram of the gear box cover of embodiment 1；
Fig. 7 is the two of the stereogram of the gear box cover of embodiment 1；
Fig. 8 is one of stereogram of the middle housing of embodiment 1；
Fig. 9 is the two of the stereogram of the middle housing of embodiment 1；
Figure 10 is the stereogram of the supporting plate of embodiment 1；
Figure 11 is one of stereogram of drive mechanism of the present invention；
Figure 12 is two (band middle housings) of the stereogram of drive mechanism of the present invention；
Figure 13 is three (band middle housings) of the stereogram of drive mechanism of the present invention；
Figure 14 is the stereogram of embodiment Bridge 2 case；
Figure 15 is the side view of embodiment Bridge 2 case；
Figure 16 is the structural representation of gear box cover and a kind of connected mode of its axle arm；
Figure 17 is the structural representation of differential case lid and a kind of connected mode of its axle arm；
Figure 18 is the structural representation of gear box cover and another connected mode of its axle arm；
Figure 19 is the structural representation of differential case lid and another connected mode of its axle arm.
Specific embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from start to finish
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
It is exemplary to scheme the embodiment of description, it is intended to for explaining the present invention, and be not considered as limiting the invention.
In the description of the invention, for the ease of description the present invention and simplify describe, with shown in Fig. 3 definition " on ", D score,
"left", "right", wherein, " on " it is the top of product shown in Fig. 3, D score is the lower section of product shown in Fig. 3, and " left side " is shown in Fig. 3
The left of product, " right side " is the right of product shown in Fig. 3, is outwardly and inwardly divided into " preceding " " afterwards " with vertical paper in Fig. 3.Other
Term as " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " vertical ", " level ", " top ", " bottom ", " interior ",
" outward ", the orientation or position relationship of the instruction such as " clockwise ", " counterclockwise " are based on orientation shown in the drawings or position relationship, only
It is to be described with simplified for the ease of description the utility model, must be with spy rather than the device or element for indicating or imply meaning
Fixed orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that indicating or implying relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or
Implicitly include one or more this feature.In the description of the invention, unless otherwise indicated, " multiple " is meant that two
Individual or two or more, unless otherwise clearly restriction.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be being fixedly connected, or being detachably connected, or be integrally connected；It can be machine
Tool is connected, or electrically connected；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, can be two units
Connection inside part.For the ordinary skill in the art, can as the case may be understand above-mentioned term in this hair
Concrete meaning in bright.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature it " on " or D score
The first and second feature directly contacts can be included, it is also possible to including the first and second features be not directly contact but by it
Between other characterisation contact.And, fisrt feature second feature " on ", " top " and " above " include that first is special
Levy directly over second feature and oblique upper, or be merely representative of fisrt feature level height higher than second feature.Fisrt feature exists
Second feature " under ", " lower section " and " below " include fisrt feature immediately below second feature and obliquely downward, or be merely representative of
Fisrt feature level height is less than second feature.
The first implementation method of bridge case of the present invention：
As shown in Figure 1, Figure 2 with a kind of bridge case for electri forklift shown in Figure 11-13, including middle housing 4, middle housing
Gear box cover 5 is fixed in 4 side, and the first axle arm 11 is fixed on gear box cover 5, and the opposite side of middle housing 4 fixes differential
Case lid 2, the second axle arm 12 is fixed on differential case lid 2, and suit fixes the first supporting plate 3, the first car on the second axle arm 12
Brake 1 is respectively mounted on the axle arm 12 of bridge arm 11 and second, the first supporting plate 3 between differential case lid 2 and brake 1,
Jack shaft 6 is respectively mounted in one axle arm 11 and the second axle arm 12, two jack shafts 6 are connected by differential assembly 10
Connect, differential assembly 10 is driven by double crosslinking gear shaft 9, second gear 802, first gear 801 and input gear 701 with motor
Connection, input gear 701 is fixed on adapter sleeve 7, adapter sleeve 7 and motor output shaft spline connection, input gear 701 and first
The engaged transmission of gear 801, first gear 801 is fixedly connected with second gear 802 and is arranged on same power transmission shaft 8 by bearing
On, the engaged transmission of gear wheel 901 on second gear 802 and double crosslinking gear shaft 9, little gear 902 on double crosslinking gear shaft 9 with it is poor
The external gear engaged transmission of fast device assembly 10.Said gear transmission is angular gear transmission.
A kind of electri forklift, including bridge case as described above, are provided with the He of the second annular mounting groove 514 on gear box cover 5
Multiple connecting poles 501,502,503,504, the first supporting plate 3 be provided with first annular mounting groove 306 and multiple connecting holes 301,
302nd, 303,304, the bridge case by first annular mounting groove 306, the second annular mounting groove 514, connecting pole 501,502,503,
504 and connecting hole 301,302,303,304 be connected with forklift frame.
Bridge case as shown in Figure 3, the outer face of multiple connecting poles 501,502,503,504 is multiple all on the same plane in A
The outer face of connecting hole 301,302,303,304 all in approximately the same plane B, plane A and plane B all with the jack shaft
Axis it is vertical and with forklift frame front-rear center line II apart from identical；The spacing of plane A and plane B is a, then, the first ring
The spacing b of the outer face of the outer face of shape mounting groove 306 and the second annular mounting groove 514 is 70%~100%a, and first
The outer face of the outer face of annular mounting groove 306 and the second annular mounting groove 514 is with forklift frame front-rear center line II apart from phase
Together, the base diameter c1 of the annular mounting groove 514 of first annular mounting groove 306 and second is 15%~25%a, first annular peace
The width c2 of the annular mounting groove 514 of tankage 306 and second is 3%~8%a.
The mounting structure of bridge case：As shown in Figure 4, Figure 5, the respective mounting hole on multiple connecting poles 501,502,503,504
Axis, and the multiple connecting holes 301,302,303,304 in supporting plate 3 each axis, be respectively positioned on the axis of power transmission shaft 8 with
Between the axis of jack shaft 6, the axis of power transmission shaft 8 and the diameter parallel of jack shaft 6 and both are generally aligned in the same plane C
In, the axis of power transmission shaft 8 is 38%~53%a with the spacing d of the axis of jack shaft 6, with plane C as horizontal plane, then, such as
In supporting plate 3 shown in Fig. 4：First connecting hole 301 and the second connecting hole 302 are located at the top of plane C, the first connecting hole 301
The horizontal range f1 of axis of axis and jack shaft 6 be 15%~25%d, the axis of the first connecting hole 301 is with plane C's
Vertical range f2 is 75%~85%d, and the axis of the second connecting hole 302 is with the horizontal range g1 of the axis of jack shaft 6
40%~50%d, the axis of the second connecting hole 302 is 65%~75%d with the vertical range g2 of plane C；3rd connecting hole 303
With the lower section that the 4th connecting hole 304 is located at plane C, the horizontal range of the axis of the 3rd connecting hole 303 and the axis of jack shaft 6
H1 is 75%~85%d, and the axis of the 3rd connecting hole 303 is 15%~25%d, the 4th connection with the vertical range h2 of plane C
The horizontal range i1 of the axis in hole 304 and the axis of jack shaft 6 is 65%~75%d, the axis of the 4th connecting hole 304 with it is flat
The vertical range i2 of face C is 40%~50%d.As shown in figure 5, the first connecting pole 501, the second connecting pole 502 and the 3rd connection
Post 503 is located at the top of plane C, and installation axially bored line and the horizontal range k1 of the axis of jack shaft 6 of the first connecting pole 501 are
30%~40%d, the axially bored line of installing of the first connecting pole 501 is 75%~85%d with the vertical range k2 of plane C, and second connects
The axially bored line of installing for connecing post 502 is 55%~65%d with the horizontal range m1 of the axis of jack shaft 6, the second connecting pole 502
It is 50%~60%d, installation axially bored line and the driving half of the 3rd connecting pole 503 that axially bored line is installed with the vertical range m2 of plane C
The horizontal range n1 of the axis of axle 6 is 70%~80%d, the vertical range for installing axially bored line and plane C of the 3rd connecting pole 503
N2 is 15%~25%d；4th connecting pole 504 is located at the lower section of plane C, installation axially bored line and the driving of the 4th connecting pole 504
The horizontal range p1 of the axis of semiaxis 6 be 75%~85%d, the 4th connecting pole 504 install axially bored line it is vertical with plane C away from
It is 30%~40%d from p2.Compared to prior art, above-mentioned installation cooperation structure is more reasonable, not only causes through connecting pole
The connecting bolt for being used to connect forklift frame and bridge case with connecting hole is difficult to loosen and uniform force so that forklift frame with
The connection of bridge case is reliable, supporting ＆ stablizing, and the service life of connecting bolt is also improved, and in fork truck work motion process, leads to
Cross the active force that the annular mounting groove of attaching plate elements and its cooperation is transferred on bridge case or even wheel more uniform and stable, so that
The abrasion for obtaining each parts binding site is minimized, and improves the service life of bridge case or even car body.
The drive mechanism of bridge case：As shown in figure 4, the axis of input gear 701 be located at jack shaft 6 axis it is rear on
Side, the axis of input gear 701 is 100%~110%d, input gear 701 with the horizontal range e1 of the axis of jack shaft 6
The vertical range e2 of axis and plane C be 40%~50%d；As shown in figure 5, the axis of double crosslinking gear shaft 9 is located at power transmission shaft 8
Axis and the axis of jack shaft 6 between and positioned at the lower section of plane C, axis and the jack shaft 6 of double crosslinking gear shaft 9
The horizontal range j1 of axis is 45%~55%d, and the axis of double crosslinking gear shaft 9 is 5%~15% with the vertical range j2 of plane C
d.Compared to prior art, said gear fit structure is more reasonable, and not only driving torque is reliable and stable, and each strength of gear is equal
It is even, and, convenient to install, lubrication is good, substantially increases the service life of drive mechanism parts in bridge case.It is real by simulating
The fatigue test of border service condition, the service life of bridge case improves 20% or so compared to prior art.
The gear box cover 5 of bridge case, as shown in Figure 6, Figure 7, gear box cover 5 is provided with the axis hole for installing jack shaft 6
A507, the axis hole B509 for installing double crosslinking gear shaft 9, the axis hole C511 for installing power transmission shaft 8 and for installing adapter sleeve 7
Axis hole D512, wherein, axis hole A507 and axis hole C511 be through hole, axis hole B509 and axis hole D512 be blind hole.Gear box cover 5
Inner side is the connection wall 505 engaged with middle housing 4, and the connection wall 505 is around formation for setting jack shaft 6, duplex-gear
The groove A of the gear wheel 901 of wheel shaft 9, second gear 802, first gear 801 and input gear 701, including accommodate input gear
The chamber of 701 chamber, the chamber 510 for accommodating first gear 801, the chamber 508 for accommodating gear wheel 901 and receiving jack shaft 6
Room 506.The outside of gear box cover 5 sets the first connecting pole 501, the second connecting pole 502, the 3rd connecting pole 503, the 4th connecting pole
504 and the linking arm 513 of the outside of jack shaft 6 is enclosed within, second annular mounting groove 514 is arranged on the linking arm 513
On periphery, the outside of the linking arm 513 is fixedly connected with the first axle arm 11.Likewise, the axis hole for installing power transmission shaft 8
The axis of C511 with for install jack shaft 6 axis hole A507 diameter parallel and both be generally aligned in the same plane in C, this two
The spacing d of axis is 38%~53%a, and with plane C as horizontal plane, then, the axis of axis hole D512 is located at the axle of axis hole A507
The back upper place of line, the axis of axis hole D512 is 100%~110%d, axis hole D512 with the horizontal range e1 of the axis of axis hole A507
The vertical range e2 of axis and plane C be 40%~50%d；The axis of axis hole B509 is located at the axis and axis hole of axis hole C511
Between the axis of A507 and positioned at the lower section of plane C, the horizontal range j1 of the axis of axis hole B509 and the axis of axis hole A507
It is 45%~55%d, the axis of axis hole B509 is 5%~15%d with the vertical range j2 of plane C.
The middle housing 4 of bridge case, as shown in Figure 8, Figure 9, middle housing 4 is provided with the axis hole for wearing jack shaft 6
E413, the intercommunicating pore 411 for wearing double crosslinking gear shaft 9, the axis hole F409 for installing power transmission shaft 8 and for installing adapter sleeve
7 axis hole G407, wherein, axis hole E413, axis hole F409 and axis hole G407 are through hole；The side of middle housing 4 is and deceleration
Case lid 5 engagement deceleration side connection wall 405, the deceleration side connection wall 405 around formed for set jack shaft 6 one end,
The chamber 408 of the gear wheel 901 of double crosslinking gear shaft 9 and the groove B of second gear 802, groove B including receiving second gear 802,
The chamber 410 for accommodating gear wheel 901 and the chamber 412 for accommodating jack shaft 6 one end, axis hole G407 walls protrude from groove B so as to
Annular groove 406 is formed between axis hole G407 walls and deceleration side connection wall 405；The opposite side of middle housing 4 is and differential box
The differential side connection wall 414 of the engagement of lid 2, the differential side connection wall 414 is around formation for setting differential assembly 10 and small tooth
The groove C of wheel 902, groove C include accommodating the chamber 416 of differential assembly 10；Dividing plate is provided between the groove B and groove C
404, axis hole E413 is arranged on dividing plate 404, the axis hole E413 and insertion groove B of intercommunicating pore 411 and groove C, and dividing plate 404 is in axis hole
Part between E413 and intercommunicating pore 411 forms arc bridge portion, and dividing plate 404 is formed with multiple reinforcements, dividing plate in groove B sides
404 are formed with multiple depressions in groove C sides.Middle housing 4 is installation motor and transmission at the rear of differential side connection wall 414
The assembly wall 417 of axle 8, and for increasing the reinforcement 415 of middle housing semi-finals degree.Likewise, for installing power transmission shaft 8
The axis of axis hole F409 with for install jack shaft 6 axis hole E413 diameter parallel and both be generally aligned in the same plane in C,
The spacing d of this two axial lines is 38%~53%a, and with plane C as horizontal plane, then, the axis of axis hole G407 is located at axis hole E413
Axis back upper place, the horizontal range e1 of the axis of axis hole G407 and the axis of axis hole E413 is 100%~110%d, axis hole
The axis of G407 is 40%~50%d with the vertical range e2 of plane C；The upper end of intercommunicating pore 411 is located at the top of plane C, even
The lower end of through hole 411 is located at the lower section of plane C.
First supporting plate 3 of bridge case, as shown in Figure 10, the first supporting plate 3 is included for being sleeved on the second axle arm 12
Sleeve part and the plate portion for connecting forklift frame, sleeve part has endoporus 307, first ring set on sleeve part periphery
Shape mounting groove 306, plate portion is formed with enhancing bending, and first connecting hole 301, the second connecting hole the 302, the 3rd are set in plate portion
The connecting hole 304 of connecting hole 303 and the 4th, plate portion is formed for avoiding electricity between the second connecting hole 302 and the 3rd connecting hole 303
The breach 305 of machine, to facilitate installation motor；Threading hole 308 is provided with plate portion, the brake cable for being convenient to brake is passed through.
The lubrication system of bridge case, as shown in Figure 1, Figure 3, pouring orifice is provided with the top of middle housing 4, and pouring orifice is by ventilating
Plug 401 is clogged, and the front portion of middle housing 4 is provided with oil spilling mouthful, and oil spilling mouthful is closed by blocking A402, and the bottom of middle housing 4 is provided with
Fuel outlet, fuel outlet is closed by blocking B403；When the plane C where the axis of power transmission shaft 8 and the axis of jack shaft 6 is in level
When bridge case be arranged on plane C almost horizontals on fork truck, the lubricating oil liquid level in bridge case is higher than plane C and less than intercommunicating pore
411 upper end.So, differential assembly and each gear and its bearing can not only well be lubricated, and, with motor
Also without being sealed, deceleration space can also connect the adapter sleeve of connection with the air in differential mechanism space via intercommunicating pore
And discharged from the breather plug of pouring orifice.Preferably, the pouring orifice is located at the top of differential assembly 10, it is poor that fuel outlet is located at
The lower section of fast device assembly 10, oil spilling mouthful is located at the front of differential assembly 10, and the pouring orifice, fuel outlet and oil spilling mouth are middle
The groove B connections of casing 4.In above-mentioned bridge case, outer end and the axle arm of jack shaft are sealed by seal.
The first implementation method of above-mentioned bridge case, is primarily adapted for use in small tonnage fork car, is set using on the outside of gear box cover
Multiple connecting poles are connected with forklift frame, easy for installation, material-saving.But, for large-tonnage fork truck, its drive axle compared with
It is long, in order to obtain preferable bearing performance, it is necessary to by the spacing a increases of above-mentioned plane A and plane B during the position of gear box cover
Constant, the easy insufficient strength because length is oversize of such connecting pole, it is therefore possible to use second implementation method：
As shown in figure 14, second supporting plate 51 is set in the outside of gear box cover 5, the second supporting plate 51 is included for being set with
Sleeve part on the first axle arm 11 and the plate portion for connecting forklift frame, set second annular on sleeve part periphery
Mounting groove, plate portion is formed with enhancing bending, and the 5th connecting hole 5101, the 6th connecting hole 5102, the 7th company are set in plate portion
The connecting hole 5104 of hole 5103 and the 8th is connect, plate portion is provided with the 9th connection between the 5th connecting hole 5101 and the 6th connecting hole 5102
Hole 5105, the second supporting plate 51 is fixedly connected by through the connecting bolt of the 9th connecting hole 5105 with gear box cover 5.Wherein,
The axis of power transmission shaft 8 and the diameter parallel of jack shaft 6 and both be generally aligned in the same plane in C, the axis of power transmission shaft 8 with drive
The spacing d of the axis of semiaxis 6 is 38%~53%a, with plane C as horizontal plane, then, as shown in figure 15, the 5th connecting hole
5101st, the 6th connecting hole 5102 and the 7th connecting hole 5103 are located at the top of plane C, axis and the driving of the 5th connecting hole 5101
The horizontal range q1 of the axis of semiaxis 6 is 25%~35%d, the axis of the 5th connecting hole 5101 and the vertical range q2 of plane C
It is 75%~85%d, the axis of the 6th connecting hole 5102 is 65%~75%d with the horizontal range r1 of the axis of jack shaft 6,
The axis of the 6th connecting hole 5102 is 45%~55%d, axis and the drive of the 7th connecting hole 5103 with the vertical range r2 of plane C
The horizontal range t1 of the axis of dynamic semiaxis 6 is 75%~85%d, the axis of the 7th connecting hole 5103 and the vertical range of plane C
T2 is 20%~30%d；8th connecting hole 5104 is located at the lower section of plane C, axis and the jack shaft 6 of the 8th connecting hole 5104
The horizontal range x1 of axis be 75%~85%d, the axis of the 8th connecting hole 5104 and the vertical range x2 of plane C are 5%
~15%d.9th connecting hole 5105 is located at the top of plane C, the axis of the 9th connecting hole 5105 and the axis of jack shaft 6
Horizontal range s1 is 45%~55%d, and the axis of the 9th connecting hole 5105 is 60%~70%d with the vertical range s2 of plane C.
Explanation is needed exist for, each connection hole site is with Publication No. CN202944154U's in above-mentioned second supporting plate
The connection hole site of supporting plate disclosed in patent document is close, but, the company in two supporting plates in patent structure before
Connect hole site to be just as, inventor is in performance test and the actually used middle abrasion for finding two supporting plates and its connection member
Degree difference is larger, therefore, inventor is to the structure distribution of above-mentioned bridge case and installs and uses situation and has carried out comprehensive and systematic point
Analysis and experiment, the optimized designs arranged using two supporting plate differentiation, so that the stress of each connection member of the invention
Uniformly, reliable, supporting ＆ stablizing is connected, in fork truck work motion process, by attaching plate elements and its annular mounting groove of cooperation
The active force being transferred on bridge case or even wheel is more uniform and stable, so that the abrasion of each parts binding site is reduced to most
It is small, improve the service life of each connection member, bridge case and car body.By simulating the fatigue test of actually used situation, bridge case
Service life compared to prior art improve 20% or so.
The axle arm mounting structure of bridge case, preferably following several embodiments：
One is connected by connecting bolt, and as shown in figure 16, the axle arm 11 of gear box cover 5 and first passes through 8 M16 bolts
Threaded connection is fixed, and as shown in figure 17, differential case lid 2 is connected with the second axle arm 12 by 8 M16 bolt threads.
Two are connect without being bonded, axle arm and case lid interference fit, and axle arm press-in load is more than 1 ton, in order to further
Ensure connection reliability, can be further fixedly connected by the way of alignment pin, holding screw or welding, such as Figure 18 institutes
Show, gear box cover 5 is fixedly connected with the interference fit of the first axle arm 11 and by plug welding 13, as shown in figure 19, differential case lid 2 with
The interference fit of second axle arm 12 is simultaneously fixedly connected by plug welding 13.So connect reliability, fixation, need not seal.
The implementation method of above-mentioned two bridge case is a motor left side and puts mode, it is also possible to is changed to the motor right side and puts mode, only
Bridge box structure need to be carried out mirror image conversion designs.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means to combine specific features, structure, material or spy that the embodiment or example are described
Point is contained at least one embodiment of the invention or example.In this manual, to the schematic representation of above-mentioned term not
Necessarily refer to identical embodiment or example.And, the specific features of description, structure, material or feature can be any
One or more embodiments or example in combine in an appropriate manner.
Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art is not departing from principle of the invention and objective
In the case of above-described embodiment can be changed within the scope of the invention, change, replace and modification.
Claims (5)
1. the gear box cover of bridge case, it is characterised in that the gear box cover (5) is provided with the axis hole A for installing jack shaft (6)
(507), for installing the axis hole B (509) of double crosslinking gear shaft (9), the axis hole C (511) for installing power transmission shaft (8) and for pacifying
The axis hole D (512) of load female connector (7)；It is the connection wall (505) engaged with middle housing (4) on the inside of gear box cover (5), should
Connection wall (505) is around formation for setting jack shaft (6), the gear wheel (901) of double crosslinking gear shaft (9), second gear
(802), the groove A of first gear (801) and input gear (701)；The outside of gear box cover (5) sets the first connecting pole
(501), the second connecting pole (502), the 3rd connecting pole (503), the 4th connecting pole (504) and linking arm (513), the linking arm
(513) outside is fixedly connected with the first axle arm (11)；For install power transmission shaft (8) axis hole C (511) axis be used for
Install jack shaft (6) axis hole A (507) diameter parallel and both be generally aligned in the same plane in C, the axis of axis hole C (511)
Spacing with the axis of axis hole A (507) is d, and with plane C as horizontal plane, then, the axis of axis hole D (512) is located at axis hole A
(507) back upper place of axis, the horizontal range (e1) of the axis of axis hole D (512) and the axis of axis hole A (507) for 100%~
The axis of 110%d, axis hole D (512) is 40%~50%d with the vertical range (e2) of plane C；The axis position of axis hole B (509)
Between the axis of axis hole C (511) and the axis of axis hole A (507) and positioned at the lower section of plane C, the axis of axis hole B (509)
Be 45%~55%d with the horizontal range (j1) of the axis of axis hole A (507), the axis of axis hole B (509) it is vertical with plane C away from
It is 5%~15%d from (j2).
2. the gear box cover of bridge case according to claim 1, it is characterised in that first connecting pole (501), second connect
Post (502) and the 3rd connecting pole (503) are connect positioned at the top of plane C, installation axially bored line and the driving half of the first connecting pole (501)
The horizontal range (k1) of the axis of axle (6) is 30%~40%d, the installation axially bored line of the first connecting pole (501) and hanging down for plane C
Straight distance (k2) is the level of 75%~85%d, the installation axially bored line of the second connecting pole (502) and the axis of jack shaft (6)
Distance (m1) is 55%~65%d, and the axially bored line of installing of the second connecting pole (502) is 50% with the vertical range (m2) of plane C
~60%d, the horizontal range (n1) of the installation axially bored line of the 3rd connecting pole (503) and the axis of jack shaft (6) for 70%~
80%d, the axially bored line of installing of the 3rd connecting pole (503) is 15%~25%d with the vertical range (n2) of plane C；4th connection
Post (504) positioned at the lower section of plane C, the level of the installation axially bored line of the 4th connecting pole (504) and the axis of jack shaft (6) away from
Be 75%~85%d from (p1), the vertical range (p2) for installing axially bored line and plane C of the 4th connecting pole (504) for 30%~
40%d.
3. the gear box cover of bridge case according to claim 1, it is characterised in that set on the periphery of the linking arm (513)
Put the second annular mounting groove (514).
4. the bridge case of electri forklift is used for, it is characterised in that including gear box cover as claimed any one in claims 1 to 3.
5. a kind of electri forklift, it is characterised in that including bridge case as claimed in claim 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510133466.3A CN104709076B (en) | 2015-03-25 | 2015-03-25 | Electric fork-lift truck, axle case and reducer casing cover thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510133466.3A CN104709076B (en) | 2015-03-25 | 2015-03-25 | Electric fork-lift truck, axle case and reducer casing cover thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104709076A CN104709076A (en) | 2015-06-17 |
| CN104709076B true CN104709076B (en) | 2017-05-24 |
Family
ID=53408991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510133466.3A Active CN104709076B (en) | 2015-03-25 | 2015-03-25 | Electric fork-lift truck, axle case and reducer casing cover thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104709076B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101749375A (en) * | 2009-12-29 | 2010-06-23 | 绍兴前进齿轮箱有限公司 | Reduction box used for battery fork lift truck |
| EP2660493A1 (en) * | 2012-05-04 | 2013-11-06 | ArvinMeritor Technology, LLC | Axle assembly having a lubricant reservoir module |
| CN103434390A (en) * | 2013-08-29 | 2013-12-11 | 安徽合力股份有限公司 | Transmission system of alternating-current storage-battery electric forklift truck |
| CN203427617U (en) * | 2013-08-17 | 2014-02-12 | 合肥美桥汽车传动及底盘***有限公司 | Driving axle assembly of forklift |
| CN204567286U (en) * | 2015-03-25 | 2015-08-19 | 绍兴金道齿轮箱有限公司 | Electri forklift, bridge case and gear box cover thereof |
-
2015
- 2015-03-25 CN CN201510133466.3A patent/CN104709076B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101749375A (en) * | 2009-12-29 | 2010-06-23 | 绍兴前进齿轮箱有限公司 | Reduction box used for battery fork lift truck |
| EP2660493A1 (en) * | 2012-05-04 | 2013-11-06 | ArvinMeritor Technology, LLC | Axle assembly having a lubricant reservoir module |
| CN203427617U (en) * | 2013-08-17 | 2014-02-12 | 合肥美桥汽车传动及底盘***有限公司 | Driving axle assembly of forklift |
| CN103434390A (en) * | 2013-08-29 | 2013-12-11 | 安徽合力股份有限公司 | Transmission system of alternating-current storage-battery electric forklift truck |
| CN204567286U (en) * | 2015-03-25 | 2015-08-19 | 绍兴金道齿轮箱有限公司 | Electri forklift, bridge case and gear box cover thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104709076A (en) | 2015-06-17 |
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| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 312000 Zhongxing Avenue 22, Zhejiang City, Shaoxing province. Patentee after: Zhejiang Golden Road Polytron Technologies Inc Address before: 312000 Zhongxing Avenue 22, Shaoxing, Zhejiang. Patentee before: SHAOXING JINDAO GEAR BOX CO., LTD. |
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| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 312000 no.689, Bujin Road, Keqiao District, Shaoxing City, Zhejiang Province Patentee after: ZHEJIANG JINDAO TECHNOLOGY Co.,Ltd. Address before: 312000 Zhongxing Avenue 22, Zhejiang City, Shaoxing province. Patentee before: ZHEJIANG JINDAO TECHNOLOGY Co.,Ltd. |