CN203623382U - Crane and engine power system thereof - Google Patents
Crane and engine power system thereof Download PDFInfo
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- CN203623382U CN203623382U CN201320649828.0U CN201320649828U CN203623382U CN 203623382 U CN203623382 U CN 203623382U CN 201320649828 U CN201320649828 U CN 201320649828U CN 203623382 U CN203623382 U CN 203623382U
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- engine
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- auxiliary gear
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Abstract
The utility model discloses a crane and an engine power system of the crane. The engine power system comprises a transmission device of an engine, and a transfer case, the transmission device comprises a flywheel and an engine output shaft which are fixed, the transfer case comprises a transfer case input shaft which can rotate along with the transmission device, the engine power system further comprises an uncoupling device and a control device, and the control device controls the uncoupling device to be positioned at the first/second working position, so that the uncoupling device is connected/disconnected with the transfer case input shaft and the transmission device. According to the design, when the engine is started, the transmission device and the transfer case input shaft can be disconnected through the uncoupling device and the control device, the transfer case and a hydraulic system connected with the transfer case are both disconnected with the engine, therefore, load resistance in the process of engine starting is thoroughly removed, the engine only needs to overcome resistance of the engine in the process of starting, and a starting motor of the engine can smoothly start the engine under any working condition.
Description
Technical field
The utility model relates to technical field of engineering machinery, particularly a kind of hoisting crane and engine power system thereof.
Background technology
Getting on the bus of hoisting crane is provided with auxiliary gear box, this auxiliary gear box is different from the auxiliary gear box of conventional automobile, crane is with being provided with a series of normal connection teeth wheels in auxiliary gear box, and without special control mechanism, its radical function is: increase power taking interface, reasonable distribution engine output power.At present, on the full Terrain Cranes of large-tonnage, car engine is directly connected with auxiliary gear box, and hydraulic efficiency pressure system is directly connected with auxiliary gear box.
Please refer to Fig. 1, Fig. 1 is the structural representation that a kind of typical driving engine is connected with auxiliary gear box.
Auxiliary gear box comprises transfer case housing 12 and is positioned at its inner gear cluster.In figure, transfer case housing 12 is fixedly connected with flywheel shell of engine 11, and the flywheel 13 in clutch bell 11 is fixed with the output shaft (not shown) of driving engine, and output shaft is plugged in the output shaft mounting hole 131 of flywheel 13.
In auxiliary gear box, be provided with the coupler terminal pad 14 of coupler (not shown), coupler is plugged in the coupler mounting hole 141 of coupler terminal pad 14.Flywheel 13 and the coupler of driving engine are directly connected by bolt, and coupler is directly connected with auxiliary gear box input shaft.In the time of engine starting, the output shaft of driving engine just drives the gear cluster setting in motion in auxiliary gear box by coupler, and auxiliary gear box inside is directly connected with oil pump, therefore the resistance that now need to overcome when engine starting comprises:
A, driving engine self resistance;
B, auxiliary gear box internal drag;
C, hydraulic efficiency pressure system resistance (oil pump drive hydraulic efficiency pressure system).
Visible, the resistance of engine starting is larger, and when especially ambient temperature is lower, in auxiliary gear box inner engine oil, power hydraulic system, hydraulic oil viscosity increases, and the resistance of engine starting can further increase.Therefore, the starter motor of driving engine need to overcome very large resisting moment, and this resisting moment even can exceed the maximum torque that starter motor can provide, thereby causes driving engine to start.
For solving crane engine starting difficult problem, general employing is carried out local temperature to engine interior and is improved (increase preheating device), periodic replacement hydraulic air wet goods mode, to reduce driving engine itself and load resistance.But this type of scheme only plays certain improvement effect to solving engine starting difficulty, cannot thoroughly solve the harmful effect that driving engine driven loads resistance brings greatly, and cost is high, improves effect also not obvious.
In view of this, how improving the engine system with auxiliary gear box, to eliminate engine loading resistance, thereby reduce starting resistance square, driving engine can be started smoothly, is those skilled in the art's technical matterss urgently to be resolved hurrily.
Utility model content
For solving the problems of the technologies described above, the purpose of this utility model is for providing a kind of hoisting crane and engine power system thereof.This engine system can be eliminated engine loading resistance, thereby reduces starting resistance square, and driving engine can be started smoothly.
The engine power system that the utility model provides, comprises the driving device of driving engine and auxiliary gear box; Described driving device comprises the flywheel, the engine output shaft that fix, and described auxiliary gear box comprises the auxiliary gear box input shaft that can rotate with described driving device; Engine power system also comprises disconnecting device and control setup, and disconnecting device is in the first/the second control position, so that described disconnecting device connects/disconnect described auxiliary gear box input shaft and described driving device described in described control setup control.
So design, in the time of engine starting, can the driving device of driving engine and auxiliary gear box input shaft be disconnected by disconnecting device and control setup, auxiliary gear box and the hydraulic efficiency pressure system that is connected with auxiliary gear box all disconnect with driving engine, thereby the load resistance while thoroughly having eliminated engine starting, when engine starting, only need to overcome self resistance, the starter motor of driving engine equal start the engine successfully under any operating mode.
Preferably, the periphery of described engine output shaft is provided with output shaft external tooth, and described auxiliary gear box input shaft has input shaft internal tooth; Described disconnecting device comprises connection axle sleeve, and described coupling spindle cover has axle sleeve internal tooth, the axle sleeve external tooth that can engage with described output shaft external tooth, described input shaft internal tooth respectively;
Described control setup drives described connection axle sleeve along the moving axially of described engine output shaft so that described connection axle sleeve can the two engages with described auxiliary gear box input shaft and described engine output shaft simultaneously, or at least with the two in one depart from.
Preferably, between the clutch bell of described flywheel or driving engine and described auxiliary gear box input shaft, there is endplay, described engine output shaft inserts described auxiliary gear box input shaft, described connection axle sleeve moves axially preset distance towards described flywheel, and the axle sleeve external tooth of described connection axle sleeve and the input shaft internal tooth of described auxiliary gear box input shaft depart from.
Preferably, described control setup comprises the mandrel that inserts the locations of described engine output shaft, axially inserts described engine output shaft, and drives the axially movable handle of described mandrel; Described mandrel is fixed with the described axle sleeve that connects by described locations; Described engine output shaft is provided with for described locations and the axially movable passage of described mandrel.
Preferably, described locations is the thru-bolt that radially runs through described engine output shaft.
Preferably, described handle is located at the outer face place of described transfer case housing.
Preferably, the outer face of described transfer case housing is provided with pedestal, and described handle and described pedestal are hinged; One end of described handle is provided with the slotted hole extending along its length, and the outer end of described mandrel is connected with described handle by the bearing pin that inserts described slotted hole, and the axis of described bearing pin is parallel with the hinge axes of described handle, described pedestal.
Preferably, described pedestal is provided with locating plate, described handle has the first inclined-plane and the second inclined-plane that are predetermined angle, when described the first inclined-plane/described the second inclined-plane contacts just with described locating plate, corresponding to described disconnecting device in the first control position/the second control position; Described handle can rotate so that described locating plate switches to described the first inclined-plane or described the second inclined-plane contacts around described hinge axes.
Preferably, between described auxiliary gear box input shaft and the clutch bell of driving engine, be provided with bearing, and/or be provided with bearing between described auxiliary gear box input shaft and described engine output shaft.
The utility model also provides a kind of hoisting crane, comprises and gets on the bus and be located at the engine system of getting on the bus, and described engine system is the engine system described in above-mentioned any one.
Because above-mentioned engine system has above-mentioned technique effect, the hoisting crane with this engine system also has identical technique effect.
Brief description of the drawings
Fig. 1 is the structural representation that a kind of typical driving engine is connected with auxiliary gear box;
Fig. 2 provides the structure cutaway view of a kind of specific embodiment of engine power system for the utility model;
Fig. 3 is the local enlarged diagram at A position in Fig. 2;
Fig. 4 is the schematic diagram of transfer case housing in Fig. 2;
Fig. 5 is the left view of Fig. 4;
Fig. 6 is the schematic diagram that handle position is set in Fig. 5;
Fig. 7 is the local enlarged diagram at B position in Fig. 6;
Fig. 8 is the axially movable schematic diagram of handle drives mandrel.
In Fig. 1:
11 clutch bells, 12 transfer case housings, 13 flywheels, 131 output shaft mounting holes, 14 coupler terminal pads, 141 coupler mounting holes
In Fig. 2-8:
21 clutch bells, 22 transfer case housings, 221 pedestals, 221a locating plate, 23 auxiliary gear box input shafts, round engine output shaft, 241 radial direction through hole, 251 mandrels, 251a outer end, 252 thru-bolts, 253 handles, 253a the first inclined-plane, 253b the second inclined-plane, 253c slotted hole, 254 jointed shafts, 255 bearing pins, 26 connect axle sleeve, 27 clutch shaft bearings, 28 second bearings
Detailed description of the invention
In order to make those skilled in the art understand better the technical solution of the utility model, below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Please refer to Fig. 2-3, Fig. 2 provides the structure cutaway view of a kind of specific embodiment of engine power system for the utility model; Fig. 3 is the local enlarged diagram at A position in Fig. 2.
Engine power system in this embodiment, comprises the driving device of driving engine and auxiliary gear box.Driving device specifically comprises flywheel (not shown) and engine output shaft 24, and the two is relatively fixing, flywheel and engine output shaft 24 can together with rotate.Auxiliary gear box comprises the auxiliary gear box input shaft 23 that can rotate with driving device, such as, auxiliary gear box input shaft 23 can drive rotation by engine output shaft 24, after auxiliary gear box input shaft 23 rotates, can drive the gear cluster of auxiliary gear box inside to do corresponding rotation, the principle of work of auxiliary gear box can be understood with reference to prior art.
Engine power system also comprises disconnecting device and control setup, and control setup control disconnecting device is in the first control position/the second control position, so that disconnecting device connects/disconnect auxiliary gear box input shaft 23 and driving device.Be disconnecting device in the time of the first control position, auxiliary gear box input shaft 23 is connected with driving device by disconnecting device, auxiliary gear box input shaft 23 is synchronizeed and is rotated with driving device; Disconnecting device is in the time of the second control position, and auxiliary gear box input shaft 23 disconnects with driving device, and driving device rotates separately.
So design, in the time of engine starting, can the driving device of driving engine and auxiliary gear box input shaft 23 be disconnected by disconnecting device and control setup, auxiliary gear box and the hydraulic efficiency pressure system that is connected with auxiliary gear box all disconnect with driving engine, thereby the load resistance while thoroughly having eliminated engine starting, when engine starting, only need to overcome self resistance, the starter motor of driving engine equal start the engine successfully under any operating mode.
Disconnecting device can have various structures form, to realize above-mentioned functions, as shown in Figure 2.
This disconnecting device specifically comprises connection axle sleeve 26, connects axle sleeve 26 and is provided with axle sleeve internal tooth and axle sleeve external tooth.Correspondingly, the periphery of engine output shaft 24 is provided with output shaft external tooth, and auxiliary gear box input shaft 23 has input shaft internal tooth, and the axle sleeve internal tooth that connects axle sleeve 26 can engage with output shaft external tooth, and axle sleeve external tooth can engage with input shaft internal tooth.In figure, connect axle sleeve 26 overcoat engine output shafts 24, and in be placed on auxiliary gear box input shaft 23, realizing corresponding external tooth, internal tooth engages simultaneously.
Now, control setup can drive and connect axle sleeve 26 moving axially along engine output shaft 24, so that connect, axle sleeve 26 can the two engages simultaneously with auxiliary gear box input shaft 23 and engine output shaft 24, or at least with the two in one depart from, as long as depart from one, engine output shaft 24 and auxiliary gear box input shaft 23 disconnect.
In Fig. 3, the axle sleeve internal tooth and the axle sleeve external tooth that connect axle sleeve 26 engage with output shaft external tooth, input shaft internal tooth respectively simultaneously, now, disconnecting device is in the first control position, engine output shaft 24 is connected by connecting axle sleeve 26 with auxiliary gear box input shaft 23, can drive auxiliary gear box input shaft 23 to rotate when engine output shaft 24 rotates; Taking Fig. 2 as visual angle, control setup drives connection axle sleeve 26 to move to left after a segment distance, the axle sleeve external tooth that connects axle sleeve 26 can depart from the input shaft internal tooth of auxiliary gear box input shaft 23, connect no longer connecting engine output shaft 24 and auxiliary gear box input shaft 23 of axle sleeve 26, the two disconnection, now, disconnecting device is in the second control position, and engine output shaft 24 rotates separately.
In this embodiment, separate while connecting axle sleeve 26 and auxiliary gear box input shaft 23, connect axle sleeve 26 and move axially towards the direction of flywheel.According to concrete type, between clutch bell 21 or flywheel and auxiliary gear box input shaft 23, there is endplay, in Fig. 2, between clutch bell 21 and auxiliary gear box input shaft 23, there is endplay.24 of engine output shafts insert auxiliary gear box input shaft 23, towards the axial bore place of flywheel one end, one section of input shaft internal tooth is set at auxiliary gear box input shaft 23, when connecting axle sleeve 26 and moving after preset distance to endplay place between flywheel and auxiliary gear box input shaft 23, connecting axle sleeve 26 can depart from auxiliary gear box input shaft 23.This set-up mode, takes full advantage of the gap between auxiliary gear box and flywheel, is convenient to realize moving axially of connection axle sleeve 26.
Seen from the above description, at least one separates with engine output shaft 24 and auxiliary gear box input shaft 23 to connect axle sleeve 26, can realize the disconnection of the two.Therefore in Fig. 2, connect axle sleeve 26 and depart from after the input shaft internal tooth of auxiliary gear box input shaft 23, can continue to engage with the output shaft external tooth of engine output shaft 24, or also separate.
Be appreciated that, one section of input shaft internal tooth is set in auxiliary gear box input shaft 23 axial bore, drive connection axle sleeve 26 to move (in Fig. 2, moving to right) along deviating from free wheel direction, until axle sleeve external tooth departs from this section of input shaft internal tooth or disengaging output shaft internal tooth is also passable, just connection axle sleeve 26 is now all the time in auxiliary gear box input shaft 23 axial bore, controls and the simple and easy degree of processing technology will be inferior to above-described embodiment.
Disconnecting device adopts the structure that connects axle sleeve 26, and itself and engine output shaft 24 and auxiliary gear box input shaft 23 can be installed by suit, has and installs reliably, assembles simple advantage; And, connect axle sleeve 26 and take gear to engage with engine output shaft 24, auxiliary gear box input shaft 23, make connection reliability higher, need to separate time, apply less power, can not interfere other parts in clutch bell 21 and auxiliary gear box yet.
Particularly, control setup can comprise insert engine output shaft 24 locations, axially insert the mandrel 251 of engine output shaft 24, and drive the axially movable handle 253 of mandrel 251.Mandrel 251 is fixed with connecting axle sleeve 26 by locations, and the locations in Fig. 2 is specially the thru-bolt 252 that radially runs through engine output shaft 24.
Thru-bolt 252 runs through simultaneously and connects axle sleeve 26, engine output shaft 24 and mandrel 251.Connect axle sleeve 26 and be provided with the counterbore coordinating with the bolt of thru-bolt 252, two hook bolts of thru-bolt 252 by its with connect axle sleeve 26 and be completely fixed, the screw rod of thru-bolt 252 runs through mandrel 251, also fixing with mandrel 251, now, thru-bolt 252, connection axle sleeve 26, mandrel 251 threes are relatively-stationary relation.In the time driving mandrel 251 to move axially along engine output shaft 24, mandrel 251 drives thru-bolt 252, thru-bolt 252 drives and connects axle sleeves 26 and moves vertically, thus realize connect axle sleeve 26 moving axially in case with the engaging and disengaging of auxiliary gear box input shaft 23.
Seen from the above description, thru-bolt 252 and mandrel 251 need to move along engine output shaft 24, therefore can arrange on engine output shaft 24 for thru-bolt 252 and the axially movable passage of mandrel 251.As shown in Figure 2, the axially extending bore that mandrel 251 inserts is its passage, and the length of this passage need ensure that mandrel 251 can drive connection axle sleeve 26 to be connected or to depart from auxiliary gear box input shaft 23 in stroke; In addition, on engine output shaft 24, process the radial direction through hole 241 radially extending, as the axially movable passage of thru-bolt 252.Certainly, thru-bolt 252 is not limited to radially insert, and it is also feasible tilting to insert; In fact, locations is also not limited to run through the thru-bolt 252 of engine output shaft 24, and the locationss such as single ended bolt, locating dowel pin insert can realize equally and connect the object that connects axle sleeve 26.Just, the fixed effect of thru-bolt 252 penetration types is more reliable comparatively speaking.
Mandrel 251 is axially inserted in engine output shaft 24, and moves axially to drive with it and connect the moving axially of axle sleeve 26, and is easy to ensure to connect axle sleeve 26 and moves vertically all the time, is difficult for departing from and stuck.And in the time rotating, the setting of mandrel 251 can not cause engine output shaft 24 bias, can keep good rotation.In addition, in above-described embodiment, connect axle sleeve 26 between clutch bell 21 and auxiliary gear box, be positioned at enclosure interior, be not easy to directly it be manipulated, and mandrel 251 can insert in engine output shaft 24 from outside, and driven by handle 253, operating personal can be driven from outside and connect axle sleeve 26, operation simplification is improved, and the cost of this kind of control mode is also relatively low.
Can expect, it is also feasible not according to aforesaid way, control setup being set.Such as, directly at clutch bell 21 and auxiliary gear box inside, electrical control gear is set, be also feasible to drive moving axially of axle sleeve 26 of connection, obviously, the design cost of this kind of mode is relatively high.
Further, for the control setup embodiment of above-mentioned mandrel 251, handle 253, handle 253 specifically can be located at the outer face place of transfer case housing 22.
As shown in Fig. 4-5, Fig. 4 is the schematic diagram of transfer case housing in Fig. 2; Fig. 5 is the left view of Fig. 4.
The main body of mandrel 251 is positioned at auxiliary gear box inside, and to insert engine output shaft 24, one end of mandrel 251 extends to auxiliary gear box outside, and this end is the outer end 251a of mandrel 251.In the present embodiment, can pedestal 221 be set at the outer face of transfer case housing 22, handle 253 is hinged with pedestal 221, and handle 253 can rotate around the axis of the jointed shaft of the two 254.And one end of handle 253 arranges slotted hole 253c, the outer end 251a of mandrel 251 is connected with handle 253 by the bearing pin 255 that inserts slotted hole 253c, and the axis of bearing pin 255 is parallel with the hinge axes of above-mentioned handle 253, pedestal 221., when turning handle 253, handle 253 meeting drive bearing pins 255 move axially along engine output shaft 24, and then band moving mandrel 251 moves vertically.Slotted hole 253c is set herein, prevents from when handle 253 from rotating bearing pin 255 to apply diametral load, so that bearing pin 255 can successfully only move vertically.
So design handle 253, operating personal only needs turning handle 253 simply, can handle mandrel 251 and move axially, thereby realize the engagement of connection axle sleeve 26 and auxiliary gear box input shaft 23 or separate.
Further, locating plate 221a can be set on pedestal 221, the sidewall of handle 253 has the first inclined-plane 253a and the second inclined-plane 253b that are predetermined angle, and when the first inclined-plane 253a contacts just with locating plate 221a, disconnecting device is in the first control position; When the second inclined-plane 253b contacts just with locating plate 221a, disconnecting device is in the second control position.As shown in the figure, need to switch the position of handle 253 time, turning handle 253, in rotation process, external force need to be applied so that locating plate 221a is backed down in the position between the first inclined-plane 253a, the second inclined-plane 253b, until the second inclined-plane 253b contacts with locating plate 221a just, switch to another control position.
Visible, in the time not applying external force, handle 253 can be positioned the first control position or the second control position, so that mandrel 251 can be stably in required control position, correspondingly, the position that connects axle sleeve 26 is also relatively stable, while guaranteeing engine starting, connect axle sleeve 26 in the second control position, when engine work, in the first control position.And the inclined design of locating plate 221a uniqueness makes handle 253 can feed back to the clear and definite position of operating personal one in rotation process to switch the signal that puts in place, alert manipulation completes.
For the various embodiments described above, between the clutch bell 21 of auxiliary gear box input shaft 23 and driving engine, bearing can be set, clutch shaft bearing 27 as shown in Figure 2.Now, auxiliary gear box input shaft 23 is floating type with clutch bell 21 and is connected, and bearing on the one hand can support auxiliary gear box input shaft 23, on the other hand, is also conducive to auxiliary gear box input shaft 23 and synchronizes rotation with engine output shaft 24.
In like manner, in Fig. 2, engine output shaft 24 inserts auxiliary gear box input shaft 23, and bearing, the second bearing 28 as shown in the figure also can be set between auxiliary gear box input shaft 23 and engine output shaft 24.Engine output shaft 24 can also be inserted into transfer case housing 22, bearing also can be set, as shown in Figure 2 between the two.Bearing herein equally also plays support, reduces the effect of pivoting friction.
It should be noted that, disconnecting device is not limited to above-mentioned connection axle sleeve 26 embodiment.Such as, one insert-pull pin is directly set, corresponding radially jack is set on engine output shaft 24 and auxiliary gear box input shaft 23, when engine starting, extract insert-pull pin by control setup (can be that machinery is manual or automatically controlled), engine output shaft 24 separates with auxiliary gear box input shaft 23; When engine work, can drive insert-pull pin to insert the radially jack of said two devices, connect and synchronously rotation to realize.
Further be appreciated that in above-mentioned specific embodiment, be connected with engine output shaft 24 mainly for auxiliary gear box input shaft 23 or separation describes.In fact, the driving device of driving engine comprises flywheel and engine output shaft 24, can expect, auxiliary gear box input shaft 23 is connected with flywheel by disconnecting device or separation is also feasible, the concrete setting of disconnecting device can be understood with reference to the various embodiments described above, repeats no more herein.
Except above-mentioned engine power system, the utility model also provides a kind of hoisting crane, comprises and gets on the bus and be located at the engine system of getting on the bus, and described engine system is the engine system described in above-mentioned arbitrary embodiment.Because above-mentioned engine system has above-mentioned technique effect, the hoisting crane with this engine system also has identical technique effect.
Above a kind of hoisting crane provided by the utility model and engine power system thereof are all described in detail.Applied specific case herein principle of the present utility model and embodiment are set forth, the explanation of above embodiment is just for helping to understand method of the present utility model and core concept thereof.Should be understood that; for those skilled in the art; do not departing under the prerequisite of the utility model principle, can also carry out some improvement and modification to the utility model, these improvement and modification also fall in the protection domain of the utility model claim.
Claims (10)
1. an engine power system, comprises the driving device of driving engine and auxiliary gear box; Described driving device comprises the flywheel, the engine output shaft (24) that fix, and described auxiliary gear box comprises the auxiliary gear box input shaft (23) that can rotate with described driving device; It is characterized in that, engine power system also comprises disconnecting device and control setup, described in described control setup control, disconnecting device is in the first/the second control position, so that described disconnecting device connects/disconnect described auxiliary gear box input shaft (23) and described driving device.
2. engine power system as claimed in claim 1, is characterized in that, the periphery of described engine output shaft (24) is provided with output shaft external tooth, and described auxiliary gear box input shaft (23) has input shaft internal tooth; Described disconnecting device comprises connection axle sleeve (26), and described connection axle sleeve (26) has axle sleeve internal tooth, the axle sleeve external tooth that can engage with described output shaft external tooth, described input shaft internal tooth respectively;
Described control setup drives described connection axle sleeve (26) moving axially along described engine output shaft (24), so that described connection axle sleeve (26) can the two engages with described auxiliary gear box input shaft (23) and described engine output shaft (24) simultaneously, or at least with the two in one depart from.
3. engine power system as claimed in claim 2, it is characterized in that, between the clutch bell (21) of described flywheel or driving engine and described auxiliary gear box input shaft (23), there is endplay, described engine output shaft (24) inserts described auxiliary gear box input shaft (23), described connection axle sleeve (26) moves axially preset distance towards described flywheel, and the input shaft internal tooth of the axle sleeve external tooth of described connection axle sleeve (26) and described auxiliary gear box input shaft (23) departs from.
4. engine power system as claimed in claim 2, it is characterized in that, described control setup comprise insert described engine output shaft (24) locations, axially insert the mandrel (251) of described engine output shaft (24), and drive the axially movable handle of described mandrel (251) (253); Described mandrel (251) is fixed with the described axle sleeve (26) that connects by described locations; Described engine output shaft (24) is provided with for described locations and the axially movable passage of described mandrel (251).
5. engine power system as claimed in claim 4, is characterized in that, described locations is for radially running through the thru-bolt (252) of described engine output shaft (24).
6. engine power system as claimed in claim 4, is characterized in that, described handle (253) is located at the outer face place of described transfer case housing (22).
7. engine power system as claimed in claim 6, is characterized in that, the outer face of described transfer case housing (22) is provided with pedestal (221), and described handle (253) is hinged with described pedestal (221); One end of described handle (253) is provided with the slotted hole (253c) extending along its length, the outer end (251a) of described mandrel (251) is connected with described handle (253) by the bearing pin (255) that inserts described slotted hole (253c), and the axis of described bearing pin (255) is parallel with the hinge axes of described handle (253), described pedestal (221).
8. engine power system as claimed in claim 7, it is characterized in that, described pedestal (221) is provided with locating plate (221a), described handle (253) has the first inclined-plane (253a) and the second inclined-plane (253b) that are predetermined angle, when described the first inclined-plane (253a)/described the second inclined-plane (253b) contacts just with described locating plate (221a), corresponding to described disconnecting device in the first control position/the second control position; Described handle (253) can rotate so that described locating plate (221a) switches to described the first inclined-plane (253a) or described the second inclined-plane (253b) contacts around described hinge axes.
9. the engine power system as described in claim 1-8 any one, it is characterized in that, between the clutch bell (21) of described auxiliary gear box input shaft (23) and driving engine, be provided with bearing, and/or be provided with bearing between described auxiliary gear box input shaft (23) and described engine output shaft (24).
10. a hoisting crane, comprises and gets on the bus and be located at the engine system of getting on the bus, and it is characterized in that, described engine system is the engine system described in claim 1-9 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320649828.0U CN203623382U (en) | 2013-10-21 | 2013-10-21 | Crane and engine power system thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320649828.0U CN203623382U (en) | 2013-10-21 | 2013-10-21 | Crane and engine power system thereof |
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| CN203623382U true CN203623382U (en) | 2014-06-04 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103496322A (en) * | 2013-10-21 | 2014-01-08 | 徐州重型机械有限公司 | Crane and engine power system thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103496322A (en) * | 2013-10-21 | 2014-01-08 | 徐州重型机械有限公司 | Crane and engine power system thereof |
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