CN105179079A - Engine speed limiting device, automobile provided with same and lifting device - Google Patents
Engine speed limiting device, automobile provided with same and lifting device Download PDFInfo
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- CN105179079A CN105179079A CN201510512892.8A CN201510512892A CN105179079A CN 105179079 A CN105179079 A CN 105179079A CN 201510512892 A CN201510512892 A CN 201510512892A CN 105179079 A CN105179079 A CN 105179079A
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- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
Abstract
The invention provides an engine speed limiting device, an automobile provided with the same and a lifting device. The engine speed limiting device comprises a blocking structure and a driving structure. Before an engine drives a gear pump of the lifting device to operate, the driving structure drives the blocking structure so that the blocking structure can be located in a first position, the blocking structure blocks a throttle valve of the engine at the moment so that the throttle valve can not be opened completely, in this way, the rotation speed of the engine is reduced, and then the rotation speed of the engine is made to be matched with the rotation speed of the gear pump; then the engine is started to drive the gear pump to operate, so that the gear pump operates at the nominal speed or the permissible maximum speed of the gear pump, and accordingly the gear pump is well protected. When the engine does not need to drive the gear pump to operate, the driving structure drives the blocking structure again to adjust the opening amplitude of the throttle valve so that the throttle valve can be opened completely, and the engine can operate normally.
Description
Technical field
The present invention relates to a kind of speed limiting device of engine, there is its automobile and lift device, be particularly useful for petrol engine speed limit, belong to speed limiting device technical field.
Background technique
In order to unload conveniently, now a lot of small cargo automobile all can install lift device at it for bottom the loading space of freighting, when needs are unloaded, the side of loading space boosts by lift device, loading space is made to become inclined-plane for the bottom surface of bearing goods, goods is the downward landing from inclined-plane under the effect of self gravitation, thus promotes rate of discharging.
Conventional lift device is elevating ram, when needs are unloaded, operator promote lifting handle, open the oil outlet of reversing valve complement, hydraulic oil flows into gear pump from hydraulic oil container, hydraulic oil is inputted elevating ram to after hydraulic oil pressurization by gear pump, and the hydraulic oil after pressurization promotes elevating ram and realizes lifting function.Because elevating ram is directly installed on automobile, therefore people generally direct use motor (as petrol engine) as the power source of gear pump.
In concrete use, inventor finds, after gear pump is connected with the retarder rotating shaft of motor by power take-off, because the rated engine speed of motor and the nominal speed discrepancy of gear pump are apart from (the nominal rotating speed of gear pump is 2000r/min comparatively greatly, maximum permissible revolution is 3000r/min, and petrolic rated engine speed is 5000r/min, maximum permissible revolution is 5700r/min), although there is the adjustment of power take-off (speed ratio is 1.28), the nominal rotating speed of motor is still on the nominal rotating speed of gear pump (when petrol engine rotating speed is 5000r/min, the rotating speed of gear pump is 5000/1.28=3907r/min, still be far longer than the maximum permissible revolution of gear pump), this causes gear pump to be very easy to damage, gear pump after damage cannot pressurize for hydraulic oil, cause lift operation failure.
Because power take-off needs to be arranged in speed changer rotating shaft, speed changer rotating shaft is positioned at case of transmission, by the restriction of case of transmission size, the power take-off installed and there is more volume and more high speed ratio cannot be held, in addition, also do not have the high speed gear pump of lifting in the market, therefore above-mentioned technical problem long-standing problem those skilled in the art.
Summary of the invention
Therefore; the technical problem to be solved in the present invention is to overcome petrolic rotating speed in prior art and is far longer than the rotating speed of gear pump; so that gear pump is when by engine-driving; usually run under higher than the state of its maximum permissible revolution; thus flimsy technological deficiency is held; thus provide one can reduce petrol engine rotating speed, gear pump is run under its nominal rotating speed or maximum permissible revolution, thus can protect the non-damageable speed limiting device of engine of gear pump.
Another technical problem that the present invention will solve is to overcome the petrolic rotating speed of automobile in prior art and is far longer than the rotating speed of gear pump; so that gear pump is when by engine-driving; usually run under higher than the state of its maximum permissible revolution; thus flimsy technological deficiency is held; thus provide one can reduce petrol engine rotating speed; gear pump is run under its nominal rotating speed or maximum permissible revolution, thus can protect the non-damageable automobile of gear pump.
The petrol engine rotating speed that the 3rd technical problem that the present invention will solve is to overcome for driving gear pump in technology is far longer than gear pump rotating speed; so that gear pump is when by engine-driving; usually run under higher than the state of its maximum permissible revolution; thus flimsy technological deficiency is held; thus provide one can reduce petrol engine rotating speed; gear pump is run under its nominal rotating speed or maximum permissible revolution, thus can protect the non-damageable lift device of gear pump.
For this reason, the invention provides a kind of speed limiting device of engine, comprise
Barrier structure, for regulating the unlatching amplitude of closure, at least have and be positioned at primary importance on closure rocking arm rotation path and the second place different from described primary importance, when it is in primary importance, engine air throttle cannot be opened completely, when it is in the second place, engine air throttle can be opened completely;
Driving structure, changes between the first position and the second position for driving described barrier structure.
As preferably, described driving structure comprises drive motor, has live axle, and described live axle is directly or indirectly connected with described barrier structure, when described drive motor is in "on" position, described barrier structure is urged to the second place from primary importance by described live axle; When described drive motor is in off-position, described barrier structure is urged to primary importance from the second place by described live axle.
As preferably, described speed limiting device of engine also comprises the control structure switched between off-position and "on" position for controlling described drive motor, and described control structure comprises
Control switch, when it is closed, described drive motor is in "on" position, and when it disconnects, described drive motor is in off-position;
Trigger architecture, for triggering described control switch, making described control switch close or disconnecting.
As preferably, described trigger architecture comprises
Fitting seat, has the first cavity and the second cavity that are interconnected;
Driving gear, is arranged in described first cavity by rotating shaft is rotating;
Handle with sleeve, is fixedly connected with described driving gear, for driving the relative axis of rotation of driving gear;
Tooth bar, is arranged in the second cavity, engages with described driving gear, can move around under the drive of described driving gear in the second cavity; And
Push rod, is directly or indirectly connected with described tooth bar, closes for triggering described control switch under rack drives or disconnects.
As preferably, described live axle is the telescopic shaft that can carry out fore and aft motion;
Described barrier structure comprises speed limit rod, and described speed limit rod is directly or indirectly connected with described live axle, and described speed limit rod, under the driving of described live axle, is changed between the first position and the second position.
As preferably, described driving structure also comprises
Urceolus, one end is fixedly connected with drive motor, and the other end is fixedly connected with described motor or engine framework by position structure; And
Inner core, is arranged on the inside of urceolus Telescopic movable, and one end is fixedly connected with described telescopic shaft, and the other end is fixedly connected with described speed limit rod.
As preferably, described speed limiting device of engine also comprises sealing configuration, and described sealing configuration is arranged on the end of described urceolus, for sealing the gap between described outer tube inner wall and speed limit rod outer wall.
As preferably, described sealing configuration comprises the outside thread be located on the outer wall of described urceolus one end, be set in the sealing nut be connected on described urceolus and with the outer wall thread of described urceolus, and between described urceolus and described sealing nut, on the outer wall being set in speed limit rod and sealing is resisted against the seal ring of described urceolus end; Described sealing nut is provided with the through hole for moving through for described speed limit rod.
As preferably; described sealing configuration also comprises protecting jacket; described protecting jacket to be set on described speed limit rod between described speed limit rod and described sealing nut; the ledge structure that can mutually stop in the axial direction is provided with between described protecting jacket and described sealing nut; described protecting jacket one end towards described urceolus is provided with containing groove, and described seal ring is arranged in described receiving groove.
As preferably, described position structure comprises
Positioning seat, is fixedly mounted on motor or engine framework, has the positioning plate that passes for described speed limit rod and is arranged on the dunnage on the flexible path of described speed limit rod in a distance with described positioning plate;
Location outside thread, is arranged on the outer wall of described urceolus between described dunnage and described positioning plate; And
Setscrew nut, to be set on described urceolus and to coordinate with described location outside thread and be fixed on described positioning plate by described urceolus.
As preferably, described sealing configuration is arranged between described positioning plate and described dunnage, and is positioned at described dunnage side, and described sealing nut is resisted against in described dunnage.
The present invention also provides a kind of automobile, has motor, and for carrying out the speed limiting device of engine as described in above-mentioned any one of speed limit to motor.
As preferably, described trigger architecture is arranged on cabin interior.
The present invention also provides a kind of lift device, has gear pump, and for the motor of driving gear pump, it is characterized in that: also comprise speed limiting device of engine, described speed limiting device of engine is the speed limiting device described in above-mentioned any one.
Speed limiting device of engine of the present invention, the automobile with this speed limiting device and lift device have the following advantages:
1. speed limiting device of engine of the present invention, barrier structure and driving structure are set, when it uses in the lift device of small cargo automobile, the gear pump of lift device can directly utilize motor car engine to drive, before use motor-driven gear pump operation, first drive barrier structure by driving structure, barrier structure is made to be in primary importance, now, barrier structure stops that the closure of motor cannot be opened completely, thus reduce the rotating speed of motor, make the rotating speed of motor and the rotational speed matches of gear pump, and then ato unit driven gear pump work, gear pump is run under its nominal rotating speed or maximum permissible revolution, thus protect gear pump well.When without the need to using motor-driven gear pump operation, again drive the unlatching amplitude of barrier structure to closure to regulate by driving structure, throttle valve can be opened completely, and motor is normally worked.
2. speed limiting device of engine of the present invention, driving structure comprises the drive motor with live axle, off-position or "on" position is in by controlling drive motor, the drive shaft barrier structure of drive motor is converted between the first position and the second position, makes control more simple and efficient.
3. speed limiting device of engine of the present invention, also comprise the control structure switched between off-position and "on" position for controlling described drive motor, described control structure comprises control switch and trigger architecture, trigger architecture can trigging control switch, control switch is closed or closes, thus control drive motor is in power-off or "on" position, controls drive motor by the control mode of above-mentioned electric-controlled type, and then control barrier structure, more convenient operation; Further, control switch be arranged so that the control for drive motor is insured more, can not arbitrarily be triggered.In addition, the control mode of electric-controlled type is more convenient for installing trigger architecture, makes trigger architecture can be arranged on the inside of operator cabin as required, easy-to-operat.
2. speed limiting device of engine of the present invention, described live axle is the telescopic shaft that can carry out fore and aft motion; Described barrier structure comprises speed limit rod, and described speed limit rod is directly or indirectly connected with described live axle, and described speed limit rod, under the driving of described live axle, is changed between the first position and the second position.Drive speed limit rod flexible by the fore and aft motion of live axle, and then stop that closure is opened completely, this kind of driving mode is simple, effectively, and driving structure is simplified more.
5. speed limiting device of engine of the present invention, also comprise sealing configuration, described sealing configuration is arranged on the end of described urceolus, for sealing the gap between described outer tube inner wall and speed limit rod outer wall, thus stop that foreign matter enters above-mentioned gap, avoid affecting the normal flexible of speed limit rod because foreign matter enters.
6. automobile of the present invention, owing to having above-mentioned speed limiting device of engine, thus, directly can utilize its motor to drive lift device, and the gear pump of lift device can be protected not to be damaged.This automobile, because having above-mentioned speed limiting device of engine, thus has the advantage described in above-mentioned any one.
7. automobile of the present invention, described trigger architecture is arranged on cabin interior, is convenient to driver and directly operates.
8. lift device of the present invention, owing to having above-mentioned speed limiting device of engine, thus, directly can utilize its motor to drive lift device, and the gear pump of lift device can be protected not to be damaged.
Accompanying drawing explanation
Fig. 1 is the structural representation that a kind of mode of execution of speed limiting device of engine of the present invention applies in governed engine speed.
Fig. 2 is the structural representation of a kind of mode of execution of the trigger architecture of speed limiting device of engine of the present invention.
Fig. 3 is the structural representation of a kind of mode of execution of the driving structure of speed limiting device of engine of the present invention.
Fig. 4 is the structural representation of the another kind of mode of execution of the driving structure of speed limiting device of engine of the present invention.
Fig. 5 is the structural representation of the fitting seat of speed limiting device of engine of the present invention.
In figure: 1-speed limit rod; 2-drive motor; 3-urceolus; 4-inner core; 5-sealing nut; 6-positioning seat; 61-positioning plate; 62-U shape hole; 63-dunnage; 64-positioning supports hole; 65-setscrew nut; 7-control switch; 8-protecting jacket; 9-seal ring; 10-fitting seat; 11-second cavity; 12-driving gear; 13-rotating shaft; 14-handle with sleeve; 15-tooth bar; 16-push rod; 17-closure rocking arm; 18-motor; 19-first cavity; 20-live axle.
Embodiment
Below in conjunction with accompanying drawing, a kind of speed limiting device of engine provided by the invention, the automobile with this speed limiting device and lift device are described in detail.
The present embodiment provides a kind of speed limiting device of engine, as shown in Figure 1, comprises
Barrier structure, for regulating the unlatching amplitude of closure, at least have and be positioned at primary importance on closure rocking arm 17 rotation path and the second place different from described primary importance, when it is in primary importance, engine air throttle cannot be opened completely, when it is in the second place, engine air throttle can be opened completely;
Driving structure, changes between the first position and the second position for driving described barrier structure.
Above-mentioned speed limiting device of engine, when it uses in the lift device of small cargo automobile, the gear pump of lift device can directly utilize motor car engine to drive, before use motor-driven gear pump operation, first drive barrier structure by driving structure, barrier structure is made to be in primary importance, now, barrier structure stops that the closure of motor makes it open completely, thus reduce the rotating speed of motor, make the rotating speed of motor and the rotational speed matches of gear pump, and then ato unit driven gear pump work, gear pump is run under its nominal rotating speed or maximum permissible revolution, thus protect gear pump well, realize normal lifting.When without the need to using motor-driven gear pump operation, again drive the unlatching amplitude of barrier structure to closure to regulate by driving structure, throttle valve can be opened completely, and motor is normally worked.
Particularly, described driving structure is electric-controlled type driving structure, described driving structure comprises drive motor 2, described drive motor 2 has live axle, described live axle is directly or indirectly connected with described barrier structure, when described drive motor 2 is in "on" position, described barrier structure is urged to the second place from primary importance by described live axle; When described drive motor 2 is in off-position, described barrier structure is urged to primary importance from the second place by described live axle.
Because above-mentioned driving structure is electric-controlled type driving structure, therefore, in concrete use, only need to control drive motor and can the position residing for barrier structure be controlled for "on" position or off-position, make the control mode for barrier structure very simple and easy.
It should be noted that, the live axle 20 of above-mentioned drive motor 2 can be telescopic shaft, also can be running shaft, also be, live axle 20 can drive barrier structure to move to the second place from primary importance by fore and aft motion or rotary motion, or move to primary importance from the second place, thus realize the adjustment for engine air throttle opening degree, to reach the object of motor being carried out to speed limit.
As one preferred embodiment, described live axle 20 is the telescopic shaft that can carry out fore and aft motion, described barrier structure comprises speed limit rod 1, described speed limit rod 1 is directly or indirectly connected with described live axle, described speed limit rod 1 is under the driving of described live axle, change between the first position and the second position, more specifically, described speed limit rod 1 also carries out fore and aft motion under the driving of live axle, when described speed limit rod 1 is moved to primary importance by described drive shaft, described closure can not be opened completely, thus realizes the speed limit for motor.
As distortion, above-mentioned driving structure can be also telescopic cylinder, or is telescoping hydraulic cylinder, and the axle of cylinder or oil hydraulic cylinder drives speed limit rod 1 as live axle, to change the position of speed limit rod 1.
As shown in Figure 3, as improvement, described driving structure also comprises urceolus 3 and inner core 4, described urceolus 3 one end is fixedly connected with drive motor 2, the other end is fixedly connected with described motor 18 or engine framework, be arranged on the inside of urceolus 3 described inner core 4 Telescopic movable, one end is fixedly connected with described telescopic shaft, the other end is fixedly connected with described speed limit rod 1, when telescopic shaft moves, drive inner core 4 and then drive the speed limit rod 1 be fixedly connected with inner core 4 to carry out fore and aft motion, primary importance is reached to make speed limit rod 1, or return to the second place from primary importance.
As distortion, described speed limit rod 1 also can not carry out fore and aft motion, and under the driving of live axle, carry out oscillating motion, to swing to primary importance from the second place, or swings to the second place from primary importance, can realize the object of the invention equally.
As the further improvement to above-mentioned speed limiting device of engine, described speed limiting device of engine also comprises the control structure switched between off-position and "on" position for controlling described drive motor 2, described control structure comprises control switch 7 and trigger architecture, when described control switch 7 closes, described drive motor 2 is in "on" position, when described control switch 7 disconnects, described drive motor is in off-position; Described trigger architecture, for triggering described control switch 7, makes described control switch 7 close or disconnect.
When concrete utilization, carry out trigging control switch 7 by trigger architecture, make control switch 7 close or open, thus control drive motor 2 is in power-off or "on" position, control drive motor 2 by the control mode of above-mentioned electric-controlled type, and then control barrier structure, more convenient operation; Further, control switch 7 be arranged so that the control for drive motor 2 is insured more, can not arbitrarily be triggered.In addition, the control mode of electric-controlled type is more convenient for installing trigger architecture, makes trigger architecture can be arranged on the inside of operator cabin as required, easy-to-operat.
Particularly, as shown in Figure 2, described trigger architecture comprises fitting seat 10, has the first cavity 19 and the second cavity 11 be interconnected; Driving gear 12, is arranged in described first cavity 19 by rotating shaft 13 is rotating; Handle with sleeve 14, is fixedly connected with described driving gear 12, rotates for driving driving gear 12 phase countershaft 13; Tooth bar 15, is arranged in the second cavity 11, engages with described driving gear 12, can move around under the drive of described driving gear 12 in the second cavity 11; And push rod 16, be directly or indirectly connected with described tooth bar 15, close for triggering described control switch 7 under tooth bar 15 drive or disconnect.
When specific operation, rotate handle with sleeve 14, driving gear 12 is driven to rotate, and then band carry-over bar 15 moves back and forth in the second cavity 11, promote push rod 16 by tooth bar 15 to move, last trigging control switch 7, to change the open and-shut mode of control switch 7, particularly, described push rod 16 presses control switch 7 in moving process, control switch 7 is disconnected or closes, at this, how described push rod 16 realizes belonging to prior art for the disconnection of control switch 7 and closed operation by pressing, those skilled in the art can understand the basic principle of its pressing operation according to its knowledge grasped and implementation is similar to push-button switch, do not repeat at this.
As improvement, described tooth bar 15 has tapped hole, and the outer wall of push rod 16 arranges screw thread, push rod 16 is inserted in tapped hole and is threaded with tooth bar 15, or connecting rod inserts in the tapped hole of tooth bar 15, push rod 16 is connected with connecting rod again, can realize goal of the invention equally.
It should be noted that, above-mentioned trigger architecture, except can being above-mentioned mechanical type trigger architecture, also can be electric-controlled type trigger architecture, such as, automatically controlled button being set as trigger architecture, directly changing the open and-shut mode of described control switch 7 by pressing voltage control button.
As improvement, as shown in Figure 4, described speed limiting device of engine also comprises sealing configuration, described sealing configuration is arranged on the end of described urceolus 3, for sealing the gap between described urceolus 3 inwall and speed limit rod 1 outer wall, thus stop that foreign matter enters above-mentioned gap, avoid affecting the normal flexible of speed limit rod 1 because foreign matter enters.
Particularly, described sealing configuration comprises the outside thread be located on the outer wall of described urceolus 3 one end, be set in the sealing nut 5 be connected on described urceolus 3 and with the outer wall thread of described urceolus 3, and between described urceolus 3 and described sealing nut 5, on the outer wall being set in speed limit rod 1 and sealing is resisted against the seal ring 9 of described urceolus 3 end; Described sealing nut 5 is provided with the through hole for moving through for described speed limit rod 1, seal ring 9 is squeezed on the end of described urceolus 3 by sealing nut 5, by the end part seal of urceolus 3, thus the gap between urceolus 3 and speed limit rod 1 is sealed, foreign matter can not be entered above-mentioned gap from the end of urceolus 3.
As improvement; described sealing configuration also comprises protecting jacket 8; described protecting jacket 8 to be set on described speed limit rod 1 between described speed limit rod 1 and described sealing nut 5; the ledge structure that can mutually stop in the axial direction is provided with between described protecting jacket 8 and described sealing nut 5; described protecting jacket 8 one end towards described urceolus 3 is provided with containing groove, and described seal ring 9 is arranged in described receiving groove.Seal ring 9 is firmly squeezed in the end of urceolus 3 by above-mentioned protecting jacket 8, thus ensures the sealing of seal ring 9 for the end of urceolus 3, improves sealing effect and leading role.
As improvement, one end of described urceolus 3 is fixedly connected with described motor 18 or engine framework by position structure, described position structure comprises positioning seat 6, as shown in Figure 5, described positioning seat 6 is fixedly mounted on motor or engine framework, there is the positioning plate 61 that passes for described speed limit rod 1 and be arranged on the dunnage 63 on the flexible path of described speed limit rod 1 in a distance with described positioning plate 61, particularly, described positioning plate 61 arranges U-shaped hole 62, so that assembling, described dunnage 63 arranges positioning supports hole 64, one end of described speed limit rod 1 passes described positioning supports hole 64, and supported by described dunnage 63, location outside thread, is arranged on the outer wall of described urceolus 3 between described dunnage 63 and described positioning plate 61, and setscrew nut 65, to be set on described urceolus 3 and to coordinate with described location outside thread and described urceolus 3 is fixed on described positioning plate 61.
As improvement, described dunnage 63 is two, all towards vertical direction extend, two described dunnages 63 in a distance, to improve holding strength and the support scope of leg and described speed limit rod 1; Further, described positioning plate 61 also vertically extends, and equally also can play the effect supporting speed limit rod 1.
As preferably, described sealing configuration is arranged between described positioning plate 61 and described dunnage 63, and be positioned at described dunnage 61 side, described sealing nut 5 is resisted against in described dunnage 63, thus described dunnage 63 not only provides support for described speed limit rod 1, and, also provide support for described sealing nut 5, make total compacter, run more stable.
The present embodiment also provides a kind of automobile, and it has motor and speed limiting device of engine, and described speed limiting device of engine is any one speed limiting device of engine above-mentioned.
Because this automobile has speed limiting device of engine, thus speed limit can be carried out by the unlatching amplitude controlling closure to the motor of automobile.
When the motor of this automobile is used to drive lift device; first drive barrier structure by driving structure; barrier structure is made to be in primary importance; now; barrier structure stops that the closure of motor makes it open completely; thus reduce the rotating speed of motor; make the rotating speed of motor and the rotational speed matches of gear pump; and then ato unit driven gear pump work; gear pump is run under its nominal rotating speed or maximum permissible revolution; thus protect gear pump well, realize normal lifting.When without the need to using motor-driven gear pump operation, again drive the unlatching amplitude of barrier structure to closure to regulate by driving structure, throttle valve can be opened completely, and motor is normally worked.
In addition, this automobile is owing to have employed above-mentioned speed limiting device of engine, and it also has the advantage described in above-mentioned any one, and as preferably, described automobile is goods vehicle.
As preferred further, the trigger architecture of speed limiting device of engine is arranged on cabin interior, thus make operator just can carry out trigging control switch 7 by driving handle with sleeve 14 at cabin interior, and then the position of speed limit rod 1 is controlled, final realization opens the control of amplitude for engine air throttle, realize speed limit, easy to operate.
The present embodiment also provides a kind of lift device, has gear pump, and for the motor of driving gear pump, also comprise speed limiting device of engine, described speed limiting device of engine is the speed limiting device described in above-mentioned any one.
Obviously, above-described embodiment is only for clearly example being described, and the restriction not to mode of execution.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all mode of executions.And thus the apparent change of extending out or variation be still among the protection domain of the invention.
Claims (14)
1. a speed limiting device of engine, is characterized in that: comprise
Barrier structure, for regulating the unlatching amplitude of closure, at least have and be positioned at primary importance on closure rocking arm (17) rotation path and the second place different from described primary importance, when it is in primary importance, engine air throttle cannot be opened completely, when it is in the second place, engine air throttle can be opened completely;
Driving structure, changes between the first position and the second position for driving described barrier structure.
2. speed limiting device of engine according to claim 1, is characterized in that: described driving structure comprises
Drive motor (2), there is live axle (20), described live axle (20) is directly or indirectly connected with described barrier structure, when described drive motor (2) is in "on" position, described barrier structure is urged to the second place from primary importance by described live axle (20); When described drive motor (2) is in off-position, described barrier structure is urged to primary importance from the second place by described live axle (20).
3. speed limiting device of engine according to claim 2, is characterized in that: described speed limiting device of engine also comprises the control structure switched between off-position and "on" position for controlling described drive motor (2), and described control structure comprises
Control switch (7), when it is closed, described drive motor (2) is in "on" position, and when it disconnects, described drive motor is in off-position;
Trigger architecture, for triggering described control switch (7), making described control switch (7) close or disconnecting.
4. speed limiting device of engine according to claim 3, is characterized in that: described trigger architecture comprises
Fitting seat (10), has the first cavity and the second cavity (11) that are interconnected;
Driving gear (12), is arranged in described first cavity by rotating shaft (13) is rotating;
Handle with sleeve (14), is fixedly connected with described driving gear (12), rotates for driving driving gear (12) phase countershaft (13);
Tooth bar (15), is arranged in the second cavity (11), engages with described driving gear (12), can move around under the drive of described driving gear (12) in the second cavity (11); And
Push rod (16), is directly or indirectly connected with described tooth bar (15), closes for triggering described control switch (7) under tooth bar (15) drive or disconnects.
5. the speed limiting device of engine according to any one of claim 2-4, is characterized in that: described live axle is the telescopic shaft that can carry out fore and aft motion;
Described barrier structure comprises speed limit rod (1), and described speed limit rod (1) is directly or indirectly connected with described live axle, and described speed limit rod (1), under the driving of described live axle, is changed between the first position and the second position.
6. speed limiting device of engine according to claim 5, is characterized in that: described driving structure also comprises
Urceolus (3), one end is fixedly connected with drive motor (2), and the other end is fixedly connected with described motor or engine framework by position structure; And
Inner core (4), is arranged on the inside of urceolus (3) Telescopic movable, and one end is fixedly connected with described telescopic shaft, and the other end is fixedly connected with described speed limit rod (1).
7. speed limiting device of engine according to claim 6, it is characterized in that: described speed limiting device of engine also comprises sealing configuration, described sealing configuration is arranged on the end of described urceolus (3), for sealing the gap between described urceolus (3) inwall and speed limit rod (1) outer wall.
8. speed limiting device of engine according to claim 7, it is characterized in that: described sealing configuration comprises the outside thread be located on the outer wall of described urceolus (3) one end, be set in described urceolus (3) to go up and the sealing nut (5) be connected with the outer wall thread of described urceolus (3), and be positioned between described urceolus (3) and described sealing nut (5), on the outer wall being set in speed limit rod (1) and sealing is resisted against the seal ring (9) of described urceolus (3) end; Described sealing nut (5) is provided with the through hole for moving through for described speed limit rod (1).
9. speed limiting device of engine according to claim 8; it is characterized in that: described sealing configuration also comprises protecting jacket (8); described protecting jacket (8) is set in described speed limit rod (1) and is above positioned between described speed limit rod (1) and described sealing nut (5); the ledge structure that can mutually stop in the axial direction is provided with between described protecting jacket (8) and described sealing nut (5); on one end of described urceolus (3), be provided with containing groove at described protecting jacket (8), described seal ring (9) is arranged in described receiving groove.
10. the speed limiting device of engine according to any one of claim 6-9, is characterized in that: described position structure comprises
Positioning seat (6), be fixedly mounted on motor or engine framework, there is the positioning plate (61) that passes for described speed limit rod (1) and be arranged on the dunnage (63) on the flexible path of described speed limit rod (1) in a distance with described positioning plate (61);
Location outside thread, is arranged on outer wall that described urceolus (3) is positioned between described dunnage (63) and described positioning plate (61); And
Setscrew nut (65), is set in described urceolus (3) and goes up and coordinate with described location outside thread and be fixed on described positioning plate (61) by described urceolus (3).
11. speed limiting device of engines according to claim 10, it is characterized in that: described sealing configuration is arranged between described positioning plate (61) and described dunnage (63), and being positioned at described dunnage (61) side, described sealing nut (5) is resisted against in described dunnage (63).
12. 1 kinds of automobiles, is characterized in that: have motor, and for carrying out the speed limiting device of engine according to any one of claim 1-11 of speed limit to motor.
13. automobiles according to claim 12, is characterized in that: described trigger architecture is arranged on cabin interior.
14. 1 kinds of lift devices, have gear pump, and for the motor of driving gear pump, it is characterized in that: also comprise speed limiting device of engine, the speed limiting device of described speed limiting device of engine according to any one of claim 1-11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510512892.8A CN105179079B (en) | 2015-08-19 | 2015-08-19 | A kind of speed limiting device of engine, automobile and lifting device with it |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510512892.8A CN105179079B (en) | 2015-08-19 | 2015-08-19 | A kind of speed limiting device of engine, automobile and lifting device with it |
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| CN105179079A true CN105179079A (en) | 2015-12-23 |
| CN105179079B CN105179079B (en) | 2017-11-03 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108240260A (en) * | 2016-12-23 | 2018-07-03 | 北汽福田汽车股份有限公司 | Governed engine speed system and vehicle |
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| US5755200A (en) * | 1993-09-30 | 1998-05-26 | Henderson; Henning M. | Throttle control method and device for operating internal combustion engines |
| CN1407222A (en) * | 2001-09-13 | 2003-04-02 | 沈传良 | Pneumatic activator |
| US20070169743A1 (en) * | 2006-01-26 | 2007-07-26 | Honda Motor Co., Ltd. | Engine-drive work machine |
| US20130269655A1 (en) * | 2012-04-13 | 2013-10-17 | Honda Motor Co., Ltd. | Working machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US5755200A (en) * | 1993-09-30 | 1998-05-26 | Henderson; Henning M. | Throttle control method and device for operating internal combustion engines |
| CN1407222A (en) * | 2001-09-13 | 2003-04-02 | 沈传良 | Pneumatic activator |
| US20070169743A1 (en) * | 2006-01-26 | 2007-07-26 | Honda Motor Co., Ltd. | Engine-drive work machine |
| US20130269655A1 (en) * | 2012-04-13 | 2013-10-17 | Honda Motor Co., Ltd. | Working machine |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108240260A (en) * | 2016-12-23 | 2018-07-03 | 北汽福田汽车股份有限公司 | Governed engine speed system and vehicle |
| CN108240260B (en) * | 2016-12-23 | 2020-06-16 | 北汽福田汽车股份有限公司 | Engine speed limiting system and vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105179079B (en) | 2017-11-03 |
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Effective date of registration: 20171208 Address after: 102206 Changping District City, Shahe, Sha Yang Road, Beijing Patentee after: Beiqi Futian Automobile Co., Ltd. Address before: 262200 Shandong city of Weifang province Zhucheng Longyuan Street No. 1 Co-patentee before: Beiqi Futian Automobile Co., Ltd. Patentee before: Feitian, Zhucheng auto technology development corporation, Ltd. |