CN201196115Y - Vertical rack-and-pinion engine - Google Patents
Vertical rack-and-pinion engine Download PDFInfo
- Publication number
- CN201196115Y CN201196115Y CNU2008200367449U CN200820036744U CN201196115Y CN 201196115 Y CN201196115 Y CN 201196115Y CN U2008200367449 U CNU2008200367449 U CN U2008200367449U CN 200820036744 U CN200820036744 U CN 200820036744U CN 201196115 Y CN201196115 Y CN 201196115Y
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- Prior art keywords
- tooth bar
- control mechanism
- lower box
- piston
- output shaft
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Abstract
A vertical gear rack engine belongs to the engine technical field, which is characterized in that an upper box body, a lower box body and a cylinder cover are fixedly connected to form an enclosed space, the upper and the lower box bodies are respectively provided with two cylinders vertically, each cylinder is provided with a piston internally, the two pitons in the upper box body and the two pistons in the lower box body are respectively and fixedly connected with two ends of two piston push rods, two sides of each piston push rod are respectively and fixedly connected with two racks, two transmission shafts and an output shaft are parallel provided between the upper box body and the lower box body, each transmission shaft is provided with two gears, a transmission gear and a one-way control mechanism, the gears on the transmission shafts are meshed with the racks, the output shaft is provided with a transmission gear meshed with the transmission gears on the transmission shafts. The vertical gear rack engine has simple and reasonable structure, can improve energy utilization efficiency and engine efficiency, and can prolong the service life of the engine.
Description
Technical field
The utility model relates to a kind of structure of motor, and particularly the structure of vertical gear tooth bar motor belongs to technical field of engines.
Background technique
Motor is the source of automobile power.Up to now, except electric vehicle few in number, motor car engine all is a heat energy power mechanism, is called for short hot machine.By the change of state of working medium, the heat energy that fuel combustion is produced is transformed into mechanical energy in hot machine.This motor is transformed into rotatablely moving of crank by connecting rod with the round straight line motion of piston, and then power is exported.In expansion stroke, the heat energy that motor produces fuel combustion is transformed into the mechanical energy that the promotion piston is done reciprocatory motion, drives bent axle by connecting rod again and rotates; In other strokes, come driven plunger reciprocating by crank again, thereby realize the process of ventilation and compression.
In the expansion stroke, the length of the acting arm of force L of piston action on crank changes along with the variation of crank angle θ.When piston during at top dead center, the center of piston, connecting rod and crankshaft main journal in line, at this moment the moment of torsion of bent axle is 0.The merit that gas pressure is done piston all is converted into " dead point " pressure to crankshaft main journal; And in other positions, the part of gas pressure makes piston produce lateral pressure, is exactly the pressure of countercylinder wall.This shows, conventional engines in the course of the work, the pressure that fuel combustion produces has only sub-fraction to be converted into the output torque of bent axle, and the overwhelming majority is converted into the pressure of piston countercylinder wall and to the pressure of crankshaft main journal, efficiency of energy utilization is not high.
In addition, in the work cycle of conventional engines, each parts institute bearing load all is periodically variable, makes to have produced uneven friction and bump (as engine knock, pull-cylinder phenomena) between each surface of contact, thereby influences the performance of motor.
The model utility content
The purpose of this utility model is exactly at the available engine above shortcomings, provide a kind of and can overcome " dead point " pressure of main shaft and the lateral pressure of countercylinder wall, simple in structure, using scope is wide, reliable operation, vertical gear tooth bar motor that energy utilization rate is high.
The purpose of this utility model is to realize like this, vertical gear tooth bar motor, it is characterized in that being provided with, lower box (cylinder block), cylinder head, gear, tooth bar, transmission shaft, driving gear, folk prescription is to control mechanism, output shaft, on, lower box and cylinder head are fixedly connected into closed space, on, be vertical two cylinders of arranging respectively in the lower box, a piston is housed respectively in each cylinder, two interior pistons of two pistons in the upper box and lower box are fixedly connected on the two ends of two piston push rods respectively, in fixedly connected two toothed rack of each piston push rod both sides difference, the flank of tooth of tooth bar piston push rod dorsad is arranged in parallel, between upper box and lower box, two transmission shafts and output shaft that is parallel to each other is installed respectively by bearing, two gears are installed on each transmission shaft, a driving gear and a folk prescription are to control mechanism, driving gear is installed on the transmission shaft to control mechanism by folk prescription, two gears on each transmission shaft respectively with piston push rod on tooth bar engagement, a driving gear is installed on output shaft, the driving gear on the output shaft respectively with two transmission shafts on driving gear engagement.
Described folk prescription is free wheel device or ratchet-detent mechanism to control mechanism.The closed space that upper and lower casing forms is the machine oil fuel tank of engine lubrication system.The outside of cylinder head is provided with cylinder head cover.Be provided with the water jacket of recirculated cooling water in the upper and lower casing.Folk prescription is installed on two transmission shafts in the same way to control mechanism.
The utility model is rational in infrastructure simple, is made up of casing, cylinder head, four cylinders and four pistons thereof, two piston push rods, two transmission shafts, output shaft, rack and pinion mechanism, both direction control mechanism etc.Wherein, upper and lower casing promptly is a cylinder block, and cylinder head is used for sealing and the formation gas distribution system, thereby forms the firing chamber.The closed space that upper and lower casing, cylinder head form is the machine oil fuel tank of engine lubrication system.The outside of cylinder head is provided with cylinder head cover respectively, seals whole motor, is beneficial to dustproof.Two of the upper-lower position correspondence pistons are connected to one by the corresponding piston push rod in the upper and lower casing, constitute two cylinder drive units, and therefore, upper and lower casing constitutes the four cylinder four-stroke device of motor; The tooth bar of while piston push rod is meshed with the gear on two transmission shafts, constitutes tooth bar-gear mechanism, and four toothed rack moving direction are identical.Folk prescription is installed on two transmission shafts in the same way to control mechanism, can only transmit rotatablely moving of a direction by each folk prescription to control mechanism, two folk prescriptions export corresponding driving gear to by two transmission shafts respectively to the power of control mechanism, drive output shaft by the engagement with the driving gear of output shaft again and rotate.The utility model utilizes pinion and rack, and by mutual engagement, the oscillating rectilinear motion that cylinder piston is driven tooth bar is transformed into a kind of reciprocating internal combustion engine that rotatablely moves of gear.
Working principle of the present utility model: the combustible gas blast produces huge positive pressure, the positive pressure that a certain cylinder produces passes to piston push rod by piston, order about tooth bar and do oscillating rectilinear motion, because four toothed rack are meshed with four gears on two transmission shafts simultaneously, so just can pass to two transmission shafts to the positive pressure that blast produces by tooth bar-gear mechanism, driving output shaft by being meshed with driving gear on the output shaft again rotates, so whichsoever cylinder is in working stroke, all can finish by the conversion that rotatablely moves of the oscillating rectilinear motion of tooth bar, and then drive output shaft and rotate continuously to two transmission shafts.
The utlity model has following advantage:
1,,, overcome " dead point " pressure of main shaft and the lateral pressure of countercylinder wall so cylinder almost completely is delivered to output shaft to the thrust institute work that piston produces because of rack and pinion is in plumbness in the course of the work all the time; Eliminated conventional engines in work cycle, each parts is because of cycle live load effect, makes inhomogeneous friction and bump (as engine knock, the scuffing of cylinder bore) phenomenon that produces between each surface of contact, thereby makes the efficient of motor reach maximum, and dynamic and static state performance is preferable.The water jacket 17 of recirculated cooling water is set in the upper and lower casing, helps casing cooling, improve engine efficiency, prolong motor working life.
2, adopt pinion and rack just to make in expansion stroke, mixed gas blast and the positive pressure that acts on piston head need not secondary and decompose, but the almost equivalent tooth bar-gear drive that passes through drives the take-off (propeller) shaft rotation, reduce idle work, and then improve motor ground working efficiency, energy utilization rate height to greatest extent.
Description of drawings
Fig. 1 is structural representation of the present utility model (front view);
Fig. 2 is the A-A sectional drawing among Fig. 1;
Fig. 3 is the B-B sectional drawing among Fig. 1.
Among the figure: transmission shaft 1, gear 2, gear 3, driving gear 4, folk prescription is to control mechanism 5, driving gear 6, output shaft 7, folk prescription is to control mechanism 8, driving gear 9, gear 10, gear 11, transmission shaft 12, tooth bar 13, tooth bar 14, tooth bar 15, tooth bar 16, water jacket 17, piston 18, cylinder 19, piston push rod 20, piston 21, cylinder 22, piston 23, cylinder 24, piston push rod 25, lower box 26, upper box 27, piston 28, cylinder 29, cylinder head 30, cylinder head cover 31, cylinder head 32, cylinder head cover 33.
Embodiment
As shown in Figure 1, 2, 3, upper box 27 and lower box 26 relative layouts up and down, the closed space that is fixedly connected to form is the machine oil fuel tank of engine lubrication system.Be vertical two cylinders of arranging respectively in the upper and lower casing, cylinder 19 and 22, cylinder 29 and 24 pairings are used, be vertical symmetrical distribution, and cylinder 19 is an overall structure (in the upper box 27 that coexists) with cylinder 29, cylinder 22 is an overall structure (in the lower box 26 that coexists) with cylinder 24.Upper box 27 and lower box 26 adopt cylinder bolt to connect, in the both sides up and down of upper and lower casing 27,26 cylinder head 30 and cylinder head 32 are housed respectively, be used for sealing and form air distributing device, and then formation firing chamber, be connected with cylinder head cover 31 and cylinder head cover 33 in the outside of cylinder head 30 and cylinder head 32, seal whole motor, be used to prevent dust.The water jacket 17 of recirculated cooling water is set in upper and lower casing 27,26, is used for engine cooling.
A piston is housed respectively in each cylinder; Piston 18 in the upper box 27 and a piston 21 in the lower box 26 are separately fixed at the two ends that both sides have the piston push rod 20 of groove, two tooth bars (13,14) embed and are fixed in piston push rod 20 grooves, constitute piston, push rod, double rack integrative-structure; Another piston 28 in the upper box 27 is separately fixed at the two ends that both sides have another root piston push rod 25 of groove with another piston 23 in the lower box 26, two tooth bars (15,16) embed and are fixed in piston push rod 25 grooves, constitute piston, push rod, double rack integrative-structure.
Between upper box 27 and lower box 26, support 1, the 12 and output shafts 7 of two transmission shafts that are parallel to each other respectively by bearing, arrange four 2,3,10,11 and two driving gears 4,9 of gear that parameter is identical at two transmission shafts 1 respectively on 12, four gears 2,3,10,11 and 1,12 concentric connections of two transmission shafts, simultaneously two driving gears 4,9 by folk prescription to control mechanism 5,8 and 1,12 concentric connections of transmission shaft.Four toothed rack 13,14,15,16 mesh with four gears 2,3,10,11 respectively, form rack and pinion mechanism, make the oscillating rectilinear motion of four tooth bars 13,14,15,16 be transformed into rotatablely moving of four gears 2,3,10,11.The motion of gear 2,3,10,11 or power pass to two driving gears 4,9 by two transmission shafts 1,12 and two folk prescriptions to control mechanism 5,8, and being meshed with driving gear 6 respectively by driving gear 4,9 drives the output shaft rotation again.Above folk prescription can be free wheel device or ratchet-detent mechanism to control mechanism 5,8.
Claims (7)
1. vertical gear tooth bar motor, it is characterized in that being provided with, lower box, cylinder head, gear, tooth bar, transmission shaft, driving gear, folk prescription is to control mechanism, output shaft, on, lower box and cylinder head are fixedly connected into closed space, on, be vertical two cylinders of arranging respectively in the lower box, a piston is housed respectively in each cylinder, two interior pistons of two pistons in the upper box and lower box are fixedly connected on the two ends of two piston push rods respectively, in fixedly connected two toothed rack of each piston push rod both sides difference, the flank of tooth of tooth bar piston push rod dorsad is arranged in parallel, between upper box and lower box, two transmission shafts and output shaft that is parallel to each other is installed respectively by bearing, two gears are installed on each transmission shaft, a driving gear and a folk prescription are to control mechanism, driving gear is installed on the transmission shaft to control mechanism by folk prescription, two gears on each transmission shaft respectively with piston push rod on tooth bar engagement, a driving gear is installed on output shaft, the driving gear on the output shaft respectively with two transmission shafts on driving gear engagement.
2. vertical gear tooth bar motor according to claim 1 is characterized in that described folk prescription is a free wheel device to control mechanism.
3. vertical gear tooth bar motor according to claim 1 is characterized in that described folk prescription is ratchet-detent mechanism to control mechanism.
4. vertical gear tooth bar motor according to claim 1 is characterized in that the closed space that described upper and lower casing forms is the machine oil fuel tank of engine lubrication system.
5. vertical gear tooth bar motor according to claim 1 is characterized in that the outside of described cylinder head is provided with cylinder head cover.
6. vertical gear tooth bar motor according to claim 1 is characterized in that being provided with in the described upper and lower casing water jacket of recirculated cooling water.
7. vertical gear tooth bar motor according to claim 1 is characterized in that described folk prescription is installed on two transmission shafts in the same way to control mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200367449U CN201196115Y (en) | 2008-05-20 | 2008-05-20 | Vertical rack-and-pinion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200367449U CN201196115Y (en) | 2008-05-20 | 2008-05-20 | Vertical rack-and-pinion engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201196115Y true CN201196115Y (en) | 2009-02-18 |
Family
ID=40415751
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200367449U Expired - Fee Related CN201196115Y (en) | 2008-05-20 | 2008-05-20 | Vertical rack-and-pinion engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201196115Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104653283A (en) * | 2013-11-20 | 2015-05-27 | 铜陵市大成轧辊有限责任公司 | High-reliability rack internal combustion engine |
-
2008
- 2008-05-20 CN CNU2008200367449U patent/CN201196115Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104653283A (en) * | 2013-11-20 | 2015-05-27 | 铜陵市大成轧辊有限责任公司 | High-reliability rack internal combustion engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090218 Termination date: 20110520 |