CN104742651B - Electric forklift, axle box and supporting plate of axle box - Google Patents
Electric forklift, axle box and supporting plate of axle box Download PDFInfo
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- CN104742651B CN104742651B CN201510134767.8A CN201510134767A CN104742651B CN 104742651 B CN104742651 B CN 104742651B CN 201510134767 A CN201510134767 A CN 201510134767A CN 104742651 B CN104742651 B CN 104742651B
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Abstract
The invention discloses an electric forklift, an axle box and a supporting plate of the axle box. The supporting plate comprises a sleeve part and a plate part, wherein the sleeve part is arranged on a second axle arm in a sleeving mode, the plate part is used for being connected with a forklift frame, the sleeve part is provided with an inner hole, a first annular installation groove is formed in the periphery of the sleeve part, a reinforcing bend is formed on the plate part, the plate part is provided with a first connection hole, a second connection hole, a third connection hole and a fourth connection hole, and a notch used for receding the motor is formed between the second connection hole and the third connection hole in the plate part. According to the supporting plate, according to the installation structure, supporting strength and stress distribution of the axle box, the position relations between the connection holes and a shaft hole are limited, the connection supporting structure, position distribution and other aspects are optimized, connection reliability, supporting strength and movement stability are improved, the service life is prolonged, and manufacturing cost is lowered.
Description
Technical field
The present invention relates to a kind of electri forklift, bridge case and its gripper shoe.
Background technology
Electric vehicle due to noiseless, be not vented, overhaul simple, processing ease and hauling ability is superior and extensively transported
With, but because electric vehicle needs a lot of power supplys to provide energy, thus electric vehicle is for fuel combustion vehicle, vehicle
Space utilization is non-the normally off key.The driving system of electric vehicle includes 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 the more compact structure of entirety, layout
More reasonable；Adopt gripper shoe can adjust to connect simultaneously, be easy to the assembling of fork truck overall processing, traditional jaw type assembling mode is changed to
Fan-shaped connection, solves the stuck phenomenon shone because machining accuracy is bad.But through repetition test in recent years and reality
Border uses feedback, inventor think above-mentioned bridge case space layout, support strength, transmission stability, parts use
Still need in life-span Manufacturing cost and improve further.
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 gripper shoe,
This gripper shoe, according to the mounting structure of bridge case, is optimized to aspects such as connecting hole location arrangements.
To achieve the above object, present invention employs following technical scheme：
The gripper shoe of bridge case, including the sleeve part for being sleeved on the second axle arm and the plate for connecting forklift frame
Portion, sleeve part has endoporus, and sleeve part periphery arranges first annular mounting groove, and plate portion is formed with enhancing bending, plate portion sets
Put described first connecting hole, the second connecting hole, the 3rd connecting hole and the 4th connecting hole, plate portion is in the second connecting hole and the 3rd connection
Form the breach for avoiding motor between hole；Described first connecting hole, the second connecting hole, the 3rd connecting hole and the 4th connecting hole
It is arranged between axis and the axis of jack shaft of the power transmission shaft of bridge case, the axis of power transmission shaft and the diameter parallel of jack shaft
And both are generally aligned in the same plane in C, the axis of power transmission shaft is d with the spacing of the axis of jack shaft, with this plane C as level
Face, then, the first connecting hole and the second connecting hole are positioned at the top of plane C, the axis of the first connecting hole and the axis of jack shaft
Horizontal range be 15%～25%d, the axis of the first connecting hole and the vertical range of plane C are 75%～85%d, and second even
The horizontal range connecing the axis in hole with the axis of jack shaft is 40%～50%d, and the axis of the second connecting hole is hung down with plane C
Straight distance is 65%～75%d；3rd connecting hole and the 4th connecting hole are located at the lower section of plane C, the axis of the 3rd connecting hole with
The horizontal range of the axis of jack shaft is 75%～85%d, and the axis of the 3rd connecting hole and the vertical range of plane C are 15%
～25%d, the axis of the 4th connecting hole is 65%～75%d with the horizontal range of the axis of jack shaft, the 4th connecting hole
Axis is 40%～50%d with the vertical range of plane C.
Preferably, having through wires hole in described plate portion, the brake cable being convenient to brake passes through.
For the bridge case of electri forklift, including gripper shoe as above.
A kind of electri forklift, including bridge case as above.
The present invention due to employing above technical scheme, this gripper shoe according to the mounting structure of bridge case, support strength and
Distribution of force, is optimized to aspects such as connected support structure, location arrangements, improves connection reliability, support strength and motion
Stability, improves service life, reduces manufacturing cost.
Brief description
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 embodiment 1 gear box cover；
Fig. 7 is the two of the stereogram of embodiment 1 gear box cover；
Fig. 8 is one of stereogram of embodiment 1 middle housing；
Fig. 9 is the two of the stereogram of embodiment 1 middle housing；
Figure 10 is the stereogram of embodiment 1 gripper shoe；
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 kind of connected mode of its axle arm；
Figure 19 is the structural representation of differential case lid and another kind of connected mode of its axle arm.
Specific embodiment
Embodiments of the invention are described below in detail, the example of described embodiment is shown in the drawings, wherein from start to finish
The element that same or similar label represents same or similar element or has same or like function.Below with reference to attached
The embodiment of figure description is exemplary it is intended to be used for explaining the present invention, and is not considered as limiting the invention.
In describing the invention, for the ease of description the present invention and simplify description, with shown in Fig. 3 definition " on ", D score,
"left", "right", wherein, " on " for product shown in Fig. 3 top, D score be product shown in Fig. 3 lower section, " left " be Fig. 3 shown in
The left of product, " right " right for product shown in Fig. 3, " front " " afterwards " is outwardly and inwardly divided into paper vertical in Fig. 3.Other
Term as " " center ", " longitudinal ", " horizontal ", " length ", " width ", " thickness ", " vertical ", " level ", " top ", " bottom ", " interior ",
" outward ", the orientation of instruction such as " clockwise ", " counterclockwise " or position relationship are based on orientation shown in the drawings or position relationship, only
It is for the ease of the description present invention and to simplify description, rather than the device of instruction or hint indication or element must have specifically
Orientation, with specific azimuth configuration and operation, be therefore not considered as limiting the invention.
Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that indicating or hint relative importance
Or the implicit quantity indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or
Implicitly include one or more this feature.In describing the invention, unless otherwise stated, " multiple " are meant that two
Individual or two or more, limits unless otherwise clear and definite.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or is integrally connected；It can be machine
Tool connects or electrically connects；Can be to be joined directly together it is also possible to be indirectly connected to by intermediary, can be two units
Connection within part.For the ordinary skill in the art, above-mentioned term can be understood as the case may be at this
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 not to be directly contact but passes through it is also possible to include the first and second features
Between other characterisation contact.And, fisrt feature second feature " on ", that " top " and " above " include 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 embodiment 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 on the second axle arm 12, suit fixes the first gripper shoe 3, the first car
Brake 1 is respectively mounted on brachium pontis 11 and the second axle arm 12, the first gripper shoe 3 between differential case lid 2 and brake 1,
It is respectively mounted jack shaft 6, two jack shafts 6 pass through differential assembly 10 even in one axle arm 11 and the second axle arm 12
Connect, differential assembly 10 passes through double crosslinking gear shaft 9, second gear 802, first gear 801 and input gear 701 and motor transmission
Connect, input gear 701 is fixed on adapter sleeve 7, adapter sleeve 7 and motor output shaft spline connection, input gear 701 and first
Gear 801 engaged transmission, first gear 801 is fixedly connected with second gear 802 and is arranged on same power transmission shaft 8 by bearing
On, gear wheel 901 engaged transmission on second gear 802 and double crosslinking gear shaft 9, the little gear 902 on double crosslinking gear shaft 9 with 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 above, is provided with the second annular mounting groove 514 He on gear box cover 5
Multiple connecting posts 501,502,503,504, the first gripper shoe 3 be provided with first annular mounting groove 306 and multiple connecting hole 301,
302nd, 303,304, this bridge case by first annular mounting groove 306, the second annular mounting groove 514, connecting post 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 posts 501,502,503,504 is all in same plane A, multiple
All in approximately the same plane B, this plane A and plane B all drive half with described for the outer face of connecting hole 301,302,303,304
The axis of axle is vertically and with forklift frame front-rear center line II apart from identical；The spacing of plane A and plane B is a, then, first
Spacing b of the outer face of the outer face of annular mounting groove 306 and the second annular mounting groove 514 is 70%～100%a, and the
The outer face of the outer face of one annular mounting groove 306 and the second annular mounting groove 514 and forklift frame front-rear center line II distance
Identical, the base diameter c1 of first annular mounting groove 306 and the second annular mounting groove 514 is 15%～25%a, first annular
The width c2 of mounting groove 306 and the second annular mounting groove 514 is 3%～8%a.
The mounting structure of bridge case：As shown in Figure 4, Figure 5, the respective installing hole in multiple connecting posts 501,502,503,504
Axis, and each axis of the multiple connecting holes 301,302,303,304 in gripper shoe 3, be respectively positioned on the axis of power transmission shaft 8 with
Between the axis of jack shaft 6, the diameter parallel of the axis of power transmission shaft 8 and 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 spacing d of the axis of jack shaft 6, with this plane C as horizontal plane, then, such as
In gripper shoe 3 shown in Fig. 4：First connecting hole 301 and the second connecting hole 302 are positioned at the top of plane C, the first connecting hole 301
Horizontal range f1 of the axis of axis and jack shaft 6 be 15%～25%d, the axis of the first connecting hole 301 and plane C
Vertical range f2 is 75%～85%d, and the axis of the second connecting hole 302 and horizontal range g1 of the axis of jack shaft 6 are
40%～50%d, the axis of the second connecting hole 302 and vertical range g2 of plane C are 65%～75%d；3rd connecting hole 303
It is located at the lower section of plane C, the horizontal range of the axis of the 3rd connecting hole 303 and the axis of jack shaft 6 with the 4th connecting hole 304
H1 is 75%～85%d, and the axis of the 3rd connecting hole 303 and vertical range h2 of plane C are 15%～25%d, the 4th connection
Horizontal range i1 of the axis of the axis in hole 304 and jack shaft 6 is 65%～75%d, the axis of the 4th connecting hole 304 with flat
Vertical range i2 of face C is 40%～50%d.As shown in figure 5, the first connecting post 501, the second connecting post 502 and the 3rd connection
Post 503 is located at the top of plane C, and the axially bored line of installing of the first connecting post 501 with horizontal range k1 of the axis of jack shaft 6 is
30%～40%d, the axially bored line of installing of the first connecting post 501 is 75%～85%d with vertical range k2 of plane C, and second even
The axially bored line of installing connecing post 502 is 55%～65%d with horizontal range m1 of the axis of jack shaft 6, the second connecting post 502
Vertical range m2 installing axially bored line and plane C be 50%～60%d, the installation axially bored line of the 3rd connecting post 503 and driving
Horizontal range n1 of the axis of semiaxis 6 be 70%～80%d, the 3rd connecting post 503 install axially bored line vertical with plane C away from
It is 15%～25%d from n2；4th connecting post 504 is located at lower section, the installation axially bored line of the 4th connecting post 504 and the drive of plane C
Horizontal range p1 of the axis of dynamic semiaxis 6 is 75%～85%d, and the installation axially bored line of the 4th connecting post 504 is vertical with plane C
It is 30%～40%d apart from p2.Compared to prior art, above-mentioned installation cooperation structure is more reasonable, not only so that through connection
Post and connecting hole are difficult to loosen and uniform force for the connecting bolt connecting forklift frame and bridge case, so that forklift frame
Connection with bridge case is reliable, supporting ＆ stablizing, and the service life of connecting bolt also improves, and in fork truck work motion process,
The active force being transferred on bridge case or even wheel by the annular mounting groove of attaching plate elements and its cooperation is more uniform and stable, thus
The abrasion making 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 rear on
Side, the axis of input gear 701 is 100%～110%d with horizontal range e1 of the axis of jack shaft 6, input gear 701
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 be located at the lower section of plane C, the axis of double crosslinking gear shaft 9 and jack shaft 6
Horizontal range j1 of axis is 45%～55%d, and the axis of double crosslinking gear shaft 9 and vertical range j2 of plane C are 5%～15%
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
Even, and, convenient installation, lubrication is good, substantially increases the service life of drive mechanism parts in bridge case.Real by simulation
The fatigue test of border service condition, the service life of bridge case improves 20% about 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, for installing the axis hole B509 of double crosslinking gear shaft 9, for installing the axis hole C511 of power transmission shaft 8 and be used for installing adapter sleeve
7 axis hole D512, wherein, axis hole A507 and axis hole C511 is through hole, and axis hole B509 and axis hole D512 is blind hole.Gear box cover 5
Inner side be the connection wall 505 engaging with middle housing 4, this connection wall 505 is used for arranging jack shaft 6, duplex around formation
The gear wheel 901 of gear shaft 9, the groove A of second gear 802, first gear 801 and input gear 701, input tooth including accommodating
The chamber of wheel 701, the chamber 510 accommodating first gear 801, the chamber 508 accommodating gear wheel 901 and receiving jack shaft 6
Chamber 506.The outside of gear box cover 5 arranges the first connecting post 501, the second connecting post 502, the 3rd connecting post the 503, the 4th connection
Post 504 and the linking arm 513 being enclosed within jack shaft 6 outside, described second annular mounting groove 514 is arranged on this linking arm 513
Periphery on, the outside of this linking arm 513 is fixedly connected with the first axle arm 11.Likewise, for the axis hole installing power transmission shaft 8
, with for installing the diameter parallel of axis hole A507 of jack shaft 6 and both are generally aligned in the same plane in C, this two for the axis of C511
Spacing d of axis is 38%～53%a, and with this 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 horizontal range e1 of the axis of axis hole A507
Vertical range e2 of axis and plane C be 40%～50%d；The axis of axis hole B509 is located at axis and the axis hole of axis hole C511
Between the axis of A507 and be located at the lower section of plane C, horizontal range j1 of the axis of the axis of axis hole B509 and axis hole A507
For 45%～55%d, the axis of axis hole B509 and vertical range j2 of plane C are 5%～15%d.
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, for wearing the intercommunicating pore 411 of double crosslinking gear shaft 9, for installing the axis hole F409 of power transmission shaft 8 and be used 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 slows down
Case lid 5 engage deceleration side connection wall 405, this deceleration side connection wall 405 around formed for arrange jack shaft 6 one end,
The gear wheel 901 of double crosslinking gear shaft 9 and the groove B of second gear 802, groove B include accommodate second gear 802 chamber 408,
Accommodate the chamber 410 of gear wheel 901 and the chamber 412 accommodating jack shaft 6 one end, axis hole G407 wall protrude from groove B thus
It is formed with cannelure 406 between axis hole G407 wall and deceleration side connection wall 405；The opposite side of middle housing 4 is and differential box
The differential side connection wall 414 of lid 2 joint, this differential side connection wall 414 is used for arranging differential assembly 10 and little tooth around formation
The groove C of wheel 902, groove C include accommodating the chamber 416 of differential assembly 10；It is provided with dividing plate between described groove B and groove C
404, axis hole E413 are arranged on dividing plate 404, axis hole E413 and intercommunicating pore 411 insertion groove B 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 side
404 are formed with multiple depressions in groove C side.Middle housing 4 is to install 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 installing the diameter parallel of axis hole E413 of jack shaft 6 and both are generally aligned in the same plane in C,
Spacing d of this two axial lines is 38%～53%a, and with this plane C as horizontal plane, then, the axis of axis hole G407 is located at axis hole E413
Axis back upper place, horizontal range e1 of the axis of the axis of axis hole G407 and axis hole E413 is 100%～110%d, axis hole
The axis of G407 and vertical range e2 of plane C are 40%～50%d；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 gripper shoe 3 of bridge case, as shown in Figure 10, the first gripper shoe 3 is included for being sleeved on the second axle arm 12
Sleeve part and for connecting the plate portion of forklift frame, sleeve part has endoporus 307, sleeve part periphery arranges described first ring
Shape mounting groove 306, plate portion is formed with enhancing bending, and plate portion arranges described first connecting hole 301, the second connecting hole the 302, the 3rd
Connecting hole 303 and the 4th connecting hole 304, 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；Through wires hole 308 is had on plate portion, the brake cable being convenient to brake passes through.
The lubrication system of bridge case, as shown in Figure 1, Figure 3, is provided with pouring orifice at the top of middle housing 4, and pouring orifice is by ventilating
Plug 401 clogs, and the front portion of middle housing 4 is provided with oil spilling mouth, and by blocking A402 closing, the bottom of middle housing 4 is provided with oil spilling mouth
Fuel outlet, fuel outlet is closed by blocking B403；When plane C that the axis of the axis of power transmission shaft 8 and jack shaft 6 is located is in water
Bridge case is arranged on fork truck at ordinary times is plane C almost horizontal, and the lubricating oil liquid level in bridge case is higher than this plane C and is less than intercommunicating pore
411 upper end.So, differential assembly and each gear and its bearing can not only be lubricated well, and, with motor
Also without being sealed, deceleration space can also connect via intercommunicating pore the adapter sleeve connecting with the air in differential mechanism space
And discharge from the breather plug of pouring orifice.Preferably, described 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 mouth is located at the front of differential assembly 10, and described pouring orifice, fuel outlet and oil spilling mouth are all middle
The groove B connection of casing 4.In above-mentioned bridge case, the outer end of jack shaft and axle arm are sealed by seal.
The first embodiment of above-mentioned bridge case, is primarily adapted for use in little tonnage fork car, arranges using outside gear box cover
Multiple connecting posts are connected with forklift frame, easy for installation, material-saving.But, for large-tonnage fork truck, its drive axle is relatively
Long, in order to obtain preferable bearing performance, when needing the position of gear box cover by the spacing a increase of above-mentioned plane A and plane B
Constant, such connecting post easily insufficient strength because length is oversize, it is therefore possible to use second embodiment：
As shown in figure 14, the second gripper shoe 51 is set in the outside of gear box cover 5, the second gripper shoe 51 is included for being set with
Sleeve part on the first axle arm 11 and the plate portion for connecting forklift frame, sleeve part periphery arranges described second annular
Mounting groove, plate portion is formed with enhancing bending, plate portion arranges described 5th connecting hole 5101, the 6th connecting hole the 5102, the 7th even
Connect hole 5103 and the 8th connecting hole 5104, plate portion is provided with the 9th connection between the 5th connecting hole 5101 and the 6th connecting hole 5102
Hole 5105, the second gripper shoe 51 is fixedly connected with gear box cover 5 by the connecting bolt through the 9th connecting hole 5105.Wherein,
The diameter parallel of the axis of power transmission shaft 8 and jack shaft 6 and both be generally aligned in the same plane in C, the axis of power transmission shaft 8 and driving
Spacing d of the axis of semiaxis 6 is 38%～53%a, with this 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 top, the axis of the 5th connecting hole 5101 and the driving of plane C
Horizontal range q1 of the axis of semiaxis 6 is 25%～35%d, the axis of the 5th connecting hole 5101 and vertical range q2 of plane C
For 75%～85%d, the axis of the 6th connecting hole 5102 is 65%～75%d with horizontal range r1 of the axis of jack shaft 6,
The axis of the 6th connecting hole 5102 and vertical range r2 of plane C are 45%～55%d, the axis of the 7th connecting hole 5103 and drive
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 lower section, the axis of the 8th connecting hole 5104 and the jack shaft 6 of plane C
Horizontal range x1 of axis be 75%～85%d, the axis of the 8th connecting hole 5104 and 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 and vertical range s2 of plane C are 60%～70%d.
Need exist for illustrating, each connection hole site and Publication No. CN202944154U in above-mentioned second gripper shoe
The connection hole site of gripper shoe disclosed in patent document is close, but, the company in two in patent structure before gripper shoe
Connect hole site to be just as, inventor is in performance test and the actually used middle abrasion finding two gripper shoes and its connection member
Degree difference is larger, for this reason, inventor to the structure distribution of above-mentioned bridge case and installs and uses situation and carried out comprehensive and systematic point
Analysis and test, using the optimized design of two gripper shoe differentiation arrangements, so that the stress of each connection member of the present invention
Uniformly, connect reliable, supporting ＆ stablizing, in fork truck work motion process, by the annular mounting groove of attaching plate elements and its 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 reduces to
Little, 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% about.
The axle arm mounting structure of bridge case, preferably following several embodiments：
One is to be connected by connecting bolt, and as shown in figure 16, gear box cover 5 and the first axle arm 11 pass through 8 M16 bolts
Threaded fixation, as shown in figure 17, differential case lid 2 is connected by 8 M16 bolt threads with the second axle arm 12.
Two is no 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 fixedly connected further in the way of using alignment pin, holding screw or welding, as Figure 18 institute
Show, gear box cover 5 is fixedly connected with the first axle arm 11 interference fit and by plug welding 13, as shown in figure 19, differential case lid 2 with
Second axle arm 12 interference fit is simultaneously fixedly connected by plug welding 13.So connect reliability, fixation, need not seal.
The embodiment of above-mentioned two bridge case is a motor left side and puts mode it is also possible to be changed to the motor right side to put mode, only
Bridge box structure need to be carried out mirror image conversion designs.
In the description of this specification, reference term " embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy describing with reference to this embodiment or example
Point is contained at least one embodiment or the example of the present invention.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 be interpreted as limitation of the present invention, those of ordinary skill in the art is in the principle without departing from the present invention and objective
In the case of above-described embodiment can be changed within the scope of the invention, change, replace and modification.
Claims (4)
1. the gripper shoe of bridge case is it is characterised in that including the sleeve part for being sleeved on the second axle arm (12) and being used for even
Connect the plate portion of forklift frame, sleeve part has endoporus (307), sleeve part periphery arranges first annular mounting groove (306), plate portion
It is formed with enhancing bending, plate portion arranges the first connecting hole (301), the second connecting hole (302), the 3rd connecting hole (303) and
Four connecting holes (304), plate portion is formed for avoiding lacking of motor between the second connecting hole (302) and the 3rd connecting hole (303)
Mouth (305)；Described first connecting hole (301), the second connecting hole (302), the 3rd connecting hole (303) and the 4th connecting hole (304)
It is arranged between the axis of power transmission shaft (8) of bridge case and the axis of jack shaft (6), the axis of power transmission shaft (8) and jack shaft
(6) diameter parallel and both be generally aligned in the same plane in C, the spacing of the axis of power transmission shaft (8) and the axis of jack shaft (6)
For d, with this plane C as horizontal plane, then the first connecting hole (301) and the second connecting hole (302) are located at the top of plane C, and first
The axis of connecting hole (301) is 15%～25%d with the horizontal range (f1) of the axis of jack shaft (6), the first connecting hole
(301) axis is 75%～85%d, the axis of the second connecting hole (302) and jack shaft with the vertical range (f2) of plane C
(6) horizontal range (g1) of axis is 40%～50%d, the axis of the second connecting hole (302) and the vertical range of plane C
(g2) it is 65%～75%d；3rd connecting hole (303) and the 4th connecting hole (304) are positioned at the lower section of plane C, the 3rd connecting hole
(303) axis is 75%～85%d with the horizontal range (h1) of the axis of jack shaft (6), the axle of the 3rd connecting hole (303)
Line is 15%～25%d, the axis of the 4th connecting hole (304) and the axis of jack shaft (6) with the vertical range (h2) of plane C
Horizontal range (i1) be 65%～75%d, the axis of the 4th connecting hole (304) and the vertical range (i2) of plane C are 40%
～50%d.
2. the gripper shoe of bridge case according to claim 1 is it is characterised in that having through wires hole (308) in described plate portion, square
The brake cable being easy to brake passes through.
3. it is used for the bridge case of electri forklift it is characterised in that including gripper shoe as claimed in claim 1 or 2.
4. a kind of electri forklift is it is characterised in that include bridge case as claimed in claim 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510134767.8A CN104742651B (en) | 2015-03-25 | 2015-03-25 | Electric forklift, axle box and supporting plate of axle box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510134767.8A CN104742651B (en) | 2015-03-25 | 2015-03-25 | Electric forklift, axle box and supporting plate of axle box |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104742651A CN104742651A (en) | 2015-07-01 |
| CN104742651B true CN104742651B (en) | 2017-02-22 |
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| CN201510134767.8A Active CN104742651B (en) | 2015-03-25 | 2015-03-25 | Electric forklift, axle box and supporting plate of axle box |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107487412B (en) * | 2017-07-20 | 2023-06-16 | 庶邦科技（上海）有限公司 | Dish support of stopping |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3719638B2 (en) * | 1999-10-15 | 2005-11-24 | 株式会社丸山製作所 | Axle mounting structure for special vehicles |
| US8783393B2 (en) * | 2011-02-25 | 2014-07-22 | Deere & Company | Interface for a motor and drive assembly |
| 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 |
| CN203713421U (en) * | 2013-08-30 | 2014-07-16 | 洛阳百拓机械有限公司 | Drive axle of mucking loader |
| CN103847434A (en) * | 2013-08-30 | 2014-06-11 | 洛阳百拓机械有限公司 | Driving axle of crawler loader |
| CN203974409U (en) * | 2014-07-19 | 2014-12-03 | 广东富华重工制造有限公司 | 25 tons of steering drive axles |
| CN104309408A (en) * | 2014-10-13 | 2015-01-28 | 武汉鑫恒通车桥制造有限公司 | 8-10-ton diesel fork lift truck drive axle structure |
| CN204641265U (en) * | 2015-03-25 | 2015-09-16 | 绍兴金道齿轮箱有限公司 | Electri forklift, bridge case and stay bearing plate thereof |
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| CN104742651A (en) | 2015-07-01 |
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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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Address after: 312065 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. |