CN210531036U - Diesel engine resistance-reducing starting device switched by synchronizer - Google Patents
Diesel engine resistance-reducing starting device switched by synchronizer Download PDFInfo
- Publication number
- CN210531036U CN210531036U CN201921519449.3U CN201921519449U CN210531036U CN 210531036 U CN210531036 U CN 210531036U CN 201921519449 U CN201921519449 U CN 201921519449U CN 210531036 U CN210531036 U CN 210531036U
- Authority
- CN
- China
- Prior art keywords
- shifting fork
- synchronizer
- shaft
- belt pulley
- shaft head
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000001816 cooling Methods 0.000 claims abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000010687 lubricating oil Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 description 9
- 229910000831 Steel Inorganic materials 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 230000001360 synchronised effect Effects 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 239000000428 dust Substances 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Images
Landscapes
- Mechanical Operated Clutches (AREA)
Abstract
The utility model discloses a diesel engine resistance-reducing starting device switched by a synchronizer, which comprises a belt wheel shaft head, an inertial synchronizer and an engine crankshaft, wherein the inertial synchronizer is connected between the belt wheel shaft head and the engine crankshaft, the belt wheel shaft head comprises a belt wheel shaft, the left end of the belt wheel shaft is connected with a belt pulley, the belt pulley is used for driving working accessories, the working accessories comprise a generator, a water pump and a cooling fan, the inertial synchronizer comprises a left conical disc, the left conical disc is connected with the shaft head of the belt wheel and synchronously rotates with the shaft head of the belt wheel, joint teeth with the same modulus and pressure angle as those of the inner teeth of the joint sleeve are arranged outside the right end of the shaft head of the belt wheel, an external spline meshed with the internal spline of the spline hub is arranged on the excircle of the left end of the engine crankshaft, the spline hub is arranged outside the joint sleeve and is mutually meshed with the joint sleeve, and the shifting fork drives the joint sleeve and the conical ring to move left and right. The utility model discloses reduce the annex resistance when the engine starts, guarantee to start smoothly, prolong battery life.
Description
Technical Field
The utility model relates to an engine starting device especially relates to a diesel engine drag reduction starting device who switches with the synchronous ware.
Background
The high compression ratio and compression ignition type ignition mode of the diesel engine require higher starting rotation speed and relatively prolonged starting time; for a diesel engine started by an electric starter, a large-capacity storage battery and a high-power series-excited direct-current motor are usually adopted to ensure that the diesel engine is started smoothly. During the starting process of the diesel engine measured by seconds, mechanical friction resistance and compression pressure of working media in a cylinder are overcome; and to overcome the resistance of accessories such as a generator, a water pump, a cooling fan, or an air compressor, and thus, the starting current is extremely large. The large current discharge of the storage battery easily causes the bending of the storage battery pole plate, shortens the service life of the storage battery and causes difficult starting for serious people. Therefore, reducing the starting resistance at the time of starting becomes an important content of many diesel engine drag reduction starting apparatuses.
Technical information of the resistance-reducing starting devices of diesel engines can be found in published Chinese patent documents, such as patent application publication numbers: CN108999736A, recommend "a diesel engine drag reduction starting device", this patent application scheme is to install an electromagnetic suction device at the bent axle free end additionally, in the starting process of the engine, through starting the switch to the electromagnetic coil power-on, in order to cut off the bent axle to the power transmission of band pulley, reduce the attachment resistance when the diesel engine starts, after finishing starting, cut off the electromagnetic coil power supply through the electric control unit, resume the bent axle and power transmission of band pulley, make the engine attachment enter the working condition. Although the device can reduce part of accessory resistance when the diesel engine is started and avoid large-current discharge of the storage battery, the device has the problems of complex structure, high cost, further verification of the reliability of the electromagnetic device and the ECU control and the like.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a diesel engine drag reduction starting drive with synchronous ware switching, through the switching of synchronous ware, accessory resistance when reducing the engine and starting reduces starting current, prolongs the life of battery, improves the rotational speed that starts, guarantees going on smoothly that starts.
The technical scheme of the utility model is like this: a diesel engine drag reduction starting device switched by a synchronizer comprises a belt wheel shaft head, an inertial synchronizer and an engine crankshaft, wherein the inertial synchronizer is connected between the belt wheel shaft head and the engine crankshaft, the belt wheel shaft head comprises a belt wheel shaft, the left end of the belt wheel shaft is connected with a belt pulley, the belt pulley is used for driving a working accessory, the working accessory comprises a generator, a water pump and a cooling fan, the inertial synchronizer comprises a left conical disc, a conical ring, a joint sleeve, a spline hub and a shifting fork, the left conical disc is connected with the belt wheel shaft head and synchronously rotates with the belt wheel shaft head, joint teeth which have the same modulus and pressure angle with the inner teeth of the joint sleeve and can be meshed with each other are arranged outside the right end of the belt wheel shaft head, an outer spline meshed with the inner spline of the spline hub is arranged outside the joint sleeve and is meshed with the joint sleeve, the shifting fork drives the joint sleeve and the conical ring to move left and right.
Furthermore, the shifting fork is connected with a transverse shifting fork shaft, the shifting fork shaft triggers a contact switch along with the shifting fork when moving to the leftmost position, and the contact switch is used for controlling the operation reminding lamp.
The automatic locking device comprises a shifting fork shaft seat, wherein shifting fork shaft holes are formed in the left side and the right side of the shifting fork shaft seat, the shifting fork shaft is arranged in the shifting fork shaft holes, two self-locking pits are formed in the surface of the shifting fork shaft in a left-right mode, a telescopic ball protruding from the inner surface of each shifting fork shaft hole is arranged on the shifting fork shaft seat, and the telescopic ball falls into one of the two self-locking pits to form self locking when the shifting fork shaft moves left and right.
Furthermore, the right end of the belt wheel shaft head is provided with an inner shaft hole, a needle bearing is arranged in the inner shaft hole, and the left end of the engine crankshaft and the needle bearing are assembled to form a kinematic pair.
Furthermore, a splash lubricating oil hole communicated to the needle bearing is formed in the outer cylindrical surface of the right end of the belt wheel shaft head.
The utility model provides a technical scheme's beneficial effect is, through the switching of synchronous ware, accessory resistance when reducing the engine and starting reduces the starting current, can effectively reduce the battery to the engine start the power consumption who provides, prolongs the life of battery. In the starting process, the power transmission between the engine crankshaft and the accessories is blocked, so that the energy consumed by the accessories in the starting process is reduced, the starting rotating speed is improved, and the smooth starting is further ensured. The utility model discloses the change is less relatively, and the processing property is good, and the cost of manufacture is low, and the structure is mature reliable.
Drawings
Fig. 1 is the structure schematic diagram of the diesel engine drag reduction starting device switched by the synchronizer of the utility model.
Detailed Description
The present invention will be further described with reference to the following examples, which should not be construed as limiting the invention.
Referring to fig. 1, the diesel engine drag reduction starting device switched by the synchronizer according to the embodiment includes a pulley shaft head 1, an inertial synchronizer and an engine crankshaft 2, wherein the inertial synchronizer is connected between the pulley shaft head 1 and the engine crankshaft 2, and the engine crankshaft 2 is connected or disconnected with the pulley shaft head 1 through the synchronizer, so that torque is transmitted or disconnected. The inertial synchronizer of the embodiment adopts a lock pin synchronizer. The structure of the locking pin type synchronizer is the same as that of the prior art, and the locking pin type synchronizer mainly comprises a left conical disc 3, a right conical disc 4, a conical ring 5, a joint sleeve 6, a spline hub 7, a shifting fork 8 and the like.
The pulley stub shaft 1 position structure is as follows: an internal threaded hole is processed in the center of the axis of the left end face and used for fastening a belt pulley 9, the belt pulley 9 is used for driving working accessories, and the starting accessories comprise a generator, a water pump and a cooling fan; a key slot hole is processed on the outer cylindrical surface of the left end surface, which is deviated to the right, and the key slot hole is used for transmitting the torque of the belt pulley 9 through a flat key 10; a small step is arranged on the right of the key groove hole, the end face of the step is used for axial limiting of the belt pulley 9, and an outer cylindrical surface above the corresponding step is used for sleeving a shaft head sleeve of the belt pulley and a corresponding sealing device; a stepped shaft is arranged on the right, and an outer cylindrical surface for mounting the deep groove ball bearing 11 is processed on the stepped shaft; and a retaining ring groove for a shaft is arranged at the left end of the outer cylindrical surface, and a retaining ring for the shaft is arranged to limit the inner ring of the deep groove ball bearing 11. The right side of the stepped shaft is provided with a shorter three-section stepped shaft for increasing the shaft diameter and ensuring the space of the inner hole at the right end. And a splash lubricating oil hole 12 is formed in the outer cylindrical surface of the third-stage stepped shaft and is used for splash lubricating a needle bearing 13 and a kinematic pair formed by assembling the leftmost end journal of the engine crankshaft 2 and the needle bearing 13. The right end face of the third-stage stepped shaft is used for limiting the axial movement of the left conical disc 3. The right end of the belt wheel shaft head 1 is externally provided with engaging teeth 14 which have the same modulus and pressure angle with the inner teeth of the engaging sleeve 6 of the locking pin type synchronizer and can be meshed with each other, and the engaging teeth 14 are processed to a tool withdrawal groove. Three sections of stepped holes are machined in the right end of the belt pulley shaft head 1, a process hole for drilling is formed in the left end, a bearing inner hole matched with the outer diameter of the needle bearing 13 is formed in the middle, and the diameter of the right end is large so as to allow the outer spline section of the engine crankshaft 2 to pass through. A pulley 9 for driving the engine accessories is fastened to the pulley stub shaft by means of a pulley washer and bolts and spring washers; the sleeve of the shaft head of the belt wheel is fastened on the gear chamber cover 15 through a bolt; the outer ring of the deep groove ball bearing 11 is matched with a bearing hole on the gear chamber cover 15; limiting the end surface of the bearing outer ring by using a belt pulley shaft head sleeve; the inner ring of the deep groove ball bearing 11 is matched with the second stepped shaft of the belt wheel shaft head 1, the right end of the inner ring is close to the left end face of the second stepped shaft, and the inner ring of the deep groove ball bearing 11 is axially limited by a retaining ring for the shaft.
The position structure of the crankshaft 2 of the engine is as follows: the outer cylindrical surface of the left end is processed to a grinding wheel overrun groove, and the outer cylindrical surface is matched with the inner ring of a needle bearing 13 at the right end of the belt wheel shaft head 1; an external spline 16 meshed with the internal spline of the spline hub 7 is processed at the second stepped shaft part at the left end, and a shaft retaining ring groove is processed near the left end and is assembled with a shaft retaining ring used for axial limiting of the spline hub 7. A key groove is processed on the third stage stepped shaft of the engine crankshaft 2, and a crankshaft timing gear 17 is assembled; the right cone 4 of the locking pin type synchronizer is abutted against the left end face of the crankshaft timing gear 17; the right end face of the crankshaft timing gear 17 abuts against the left step of the engine crankshaft 2.
The inner spline of the spline hub 7 of the lock pin type synchronizer is meshed with the outer spline 16 on the second stepped shaft diameter of the engine crankshaft 2, the right end is pressed against the right end face of the second stepped shaft, and the left end is axially limited by a shaft retainer ring; the external splines of the spline hub 7 are engaged with the engaging sleeve 6; the outer engaging teeth 14 of the right end of the pulley stub shaft 1 can engage with the engaging sleeve 6. The shifting fork 8 matched with the circular arc of the joint sleeve 6 is clamped in the circular arc groove ring of the joint sleeve; the shifting fork 8 is fastened on the shifting block 18; the shifting block 18 is fastened on the shifting fork shaft 19 through a set screw; two ends of the shifting fork shaft 19 are slidably matched in the shifting fork shaft hole of the shifting fork shaft seat 20; the shifting fork shaft seat 20 is positioned by a taper pin and fastened on a gear chamber cover 15 of the diesel engine by a bolt; two spherical self-locking pits 21 are processed on the shifting fork shaft 19, and a self-locking device is assembled on the shifting fork shaft seat 20 and comprises a self-locking telescopic steel ball 22; the self-locking telescopic steel ball 22 is connected with a spring and is arranged in the shifting fork shaft seat 20. When the self-locking telescopic steel ball 22 protrudes out of the shifting fork shaft seat 20, the self-locking telescopic steel ball is positioned in the spherical concave pit 21 so as to ensure that the self-locking at the position is reliable. A contact switch 23 is mounted on the left end of the fork shaft 19 of the fork shaft seat 20, and the contact switch 23 is used for controlling an operation warning lamp (not shown). When the shifting fork shaft 19 moves to the leftmost position along with the shifting fork 8, the joint sleeve 6 is meshed with the joint teeth 14 to work, the contact switch 23 is triggered, the contact switch 23 is powered off due to contact, and the operation reminding lamp is turned off, so that an engine operator is reminded; when the shifting fork shaft 19 moves rightwards along with the shifting fork 8, the contact switch 23 is electrified again, and the operation reminding lamp is turned on. The lower ball head of the operating rod 24 is arranged in a ball pit of the shifting block 18 matched with the lower ball head; the upper ball hinge pin of the operating rod 24 is arranged in the hinge pin hole of the operating rod cover 25; the control rod cover 25 is fastened on the shifting fork shaft seat 20 through a bolt; a tower-shaped spring 26 which is arranged in the cavity of the control rod cover 25 is supported on the outer cylindrical surface of the control rod 24; the upper outer cylindrical surface of the operating lever 24 is positioned in the upper inner cylindrical surface of the rubber dust cap 27; the rubber dust cap 27 is snap fitted into the upper groove of the lever cap 25.
The working process of the device is as follows:
when started, the device is in the position shown in the figure. The power transmission line is as follows: starter → flywheel ring gear → flywheel → power take-off of crankshaft → engine crankshaft 2 rotates → free end of engine crankshaft 2 idles around needle bearing 13. The operation reminding lamp is lightened, and the belt pulley 9 does not have power output.
The start is completed and the idle warm-up ends. The operating rod 24 is shifted to move to the left, under the action of force, the self-locking telescopic steel ball 22 overcomes the spring force to bounce, the shifting fork shaft 19 moves to the left, and the shifting fork 8 and the joint sleeve 6 are driven to move to the left; at this time, the friction surface is the contact surface of the left conical disc 3 and the conical ring 5, and the chamfered position is the position where the lock pin and the engaging sleeve 6 are contacted when being combined (the process is the same as the gear shifting process of the manual transmission of the automobile). The joint sleeve 5 is meshed with the joint teeth 14 until the self-locking telescopic steel ball 22 on the shifting fork shaft 19 falls into the spherical self-locking concave pit 21 on the right, and the operation process is finished. The power transmission line at this time is: engine running → engine crankshaft 2 rotating → crankshaft free end through external splines 16 → spline hub 7 internal splines → engaging sleeve 6 internal splines → engaging teeth 14 → pulley stub 1 → pulley flat key 10 → pulley 9 → engine accessory work. At this time, the operation warning lamp is turned off.
Claims (5)
1. A diesel engine drag reduction starting device switched by a synchronizer is characterized in that: the belt pulley shaft head comprises a belt pulley shaft head, an inertial synchronizer and an engine crankshaft, the inertial synchronizer is connected between the belt pulley shaft head and the engine crankshaft, the belt pulley shaft head comprises a belt pulley shaft, the left end of the belt pulley shaft is connected with a belt pulley, the belt pulley is used for driving a working accessory, the working accessory comprises a generator, a water pump and a cooling fan, the inertial synchronizer comprises a left conical disc, a conical ring, a joint sleeve, a spline hub and a shifting fork, the left conical disc is connected with the belt pulley shaft head and synchronously rotates with the belt pulley shaft head, joint teeth which have the same modulus and pressure angle with the inner teeth of the joint sleeve and can be meshed with each other are arranged outside the right end of the belt pulley shaft head, an outer spline which is meshed with the inner spline of the spline hub is arranged outside the joint sleeve and is meshed with the joint sleeve, the shifting fork drives the joint sleeve and the conical ring to move left and right.
2. The synchronizer-switched diesel engine drag reduction starting device of claim 1, wherein: the shifting fork is connected with a transverse shifting fork shaft, the shifting fork shaft triggers a contact switch along with the shifting fork when moving to the leftmost position, and the contact switch is used for controlling the operation reminding lamp.
3. The synchronizer-switched diesel engine drag reduction starting device of claim 2, wherein: the automatic locking device comprises a shifting fork shaft seat, wherein shifting fork shaft holes are formed in the left side and the right side of the shifting fork shaft seat, the shifting fork shaft is arranged in the shifting fork shaft holes, two self-locking pits are formed in the surface of the shifting fork shaft in a left-right mode, a telescopic ball protruding from the inner surface of the shifting fork shaft hole is arranged on the shifting fork shaft seat, and the telescopic ball falls into one of the two self-locking pits to form self locking when the shifting fork shaft moves left and right.
4. The synchronizer-switched diesel engine drag reduction starting device of claim 1, wherein: the right end of the belt wheel shaft head is provided with an inner shaft hole, a needle bearing is arranged in the inner shaft hole, and the left end of the engine crankshaft and the needle bearing are assembled to form a kinematic pair.
5. The synchronizer-switched diesel engine drag reduction starting device of claim 4, wherein: and a splash lubricating oil hole communicated to the needle bearing is formed in the outer cylindrical surface of the right end of the belt wheel shaft head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921519449.3U CN210531036U (en) | 2019-09-12 | 2019-09-12 | Diesel engine resistance-reducing starting device switched by synchronizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921519449.3U CN210531036U (en) | 2019-09-12 | 2019-09-12 | Diesel engine resistance-reducing starting device switched by synchronizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210531036U true CN210531036U (en) | 2020-05-15 |
Family
ID=70605067
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921519449.3U Expired - Fee Related CN210531036U (en) | 2019-09-12 | 2019-09-12 | Diesel engine resistance-reducing starting device switched by synchronizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210531036U (en) |
-
2019
- 2019-09-12 CN CN201921519449.3U patent/CN210531036U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100592045B1 (en) | Starter with stopper on clutch inner portion of one-way clutch | |
| CN202220807U (en) | Coupling tuning pulley | |
| US20020049109A1 (en) | Planetary gear speed reduction mechanism | |
| CN210531036U (en) | Diesel engine resistance-reducing starting device switched by synchronizer | |
| CN201502643U (en) | Automobile one-way clutch sliding device | |
| CN108999736B (en) | Resistance-reducing starting device for diesel engine | |
| CN109404194B (en) | Electric starting mechanism for pedal motorcycle engine | |
| CN102359508B (en) | Coupling tuning pulley | |
| CN212296688U (en) | Two-stroke four-cylinder piston engine starting device for small and medium-sized unmanned aerial vehicle | |
| CN202914571U (en) | Coupling tuning belt pulley for start-stop all-in-one machine | |
| CN201363413Y (en) | Engine oil-storage piston convenient for starting lubrication | |
| CN103790988A (en) | Coupling and tuning belt wheel for start-stop all-in-one machine | |
| CN210106051U (en) | Torque transmission mechanism of starter motor | |
| CN112212000A (en) | Automatic transmission | |
| CN2319598Y (en) | Small diesel engine starter | |
| CN214887574U (en) | Jigger device of reciprocating piston compressor | |
| CN106837650B (en) | Starter and assembling method of driving gear structure therein | |
| CN111441890A (en) | Two-stroke four-cylinder piston engine starting device for small and medium-sized unmanned aerial vehicle | |
| CN103790987A (en) | Coupling and tuning belt pulley for start-stop integrated machine | |
| CN2566590Y (en) | Central controlled door lock for car | |
| CN202914569U (en) | Coupling tuning belt pulley for integrated start-stop machine | |
| CN218440587U (en) | Friction plate type two-gear speed reducer | |
| CN211777781U (en) | Isolator with floating slide block for starter | |
| CN221097174U (en) | Engine crankshaft assembly | |
| CN219755267U (en) | New energy vehicle is wear-resisting long-life helical gear for derailleur |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200515 |