阅读说明：本技术 四冲程内燃机配气相位曲线生成仪 (Gas distribution phase curve generator for four-stroke internal combustion engine ) 是由 陈虹微 王荣杰 李春金 于 2019-11-27 设计创作，主要内容包括：本发明公开了四冲程内燃机配气相位曲线生成仪,包括底板与传动箱,所述底板的上端设置有传动箱,所述底板与传动箱焊接固定,所述传动箱的后端设置有挡板,所述挡板的前端表侧设置有移动机构,所述移动机构与挡板通过螺钉固定连接,本发明中将曲轴与锥齿轮轴合二为一,即将两光轴加工成阶梯轴,这样通过阶梯轴的传动可以消除存在的不稳定性,从而使得转动的更加灵活,本发明中在定位槽内安装轴承,取代原来直接将轴安装在定位槽处,消除转动时的摩擦阻力,在立板的滑槽内增加轴承,减少九十度导杆在左右移动时的摩擦,将画笔改为激光笔,使得激光笔不与画板直接接触,这样便消除了画笔与画板之间的摩擦。(The invention discloses a four-stroke internal combustion engine distribution phase curve generator, which comprises a bottom plate and a transmission case, wherein the upper end of the bottom plate is provided with the transmission case, the bottom plate is welded and fixed with the transmission case, the rear end of the transmission case is provided with a baffle, the front end surface side of the baffle is provided with a moving mechanism, and the moving mechanism is fixedly connected with the baffle through a screw, a crankshaft and a bevel gear shaft are combined into a whole, namely, two optical axes are processed into a stepped shaft, so that the instability can be eliminated through the transmission of the stepped shaft, and the rotation is more flexible, a bearing is arranged in a positioning groove to replace the original way that the shaft is directly arranged at the positioning groove to eliminate the friction resistance during rotation, the bearing is added in a chute of a vertical plate, the friction of a ninety-degree guide rod during left-right movement is reduced, a painting brush is changed into a laser pen, and, this eliminates friction between the brush and the drawing board.)

1. The four-stroke internal combustion engine distribution phase curve generation instrument comprises a bottom plate (1) and a transmission case (3), and is characterized in that: the upper end of the bottom plate (1) is provided with a transmission case (3), the bottom plate (1) is welded and fixed with the transmission case (3), the rear end of the transmission case (3) is provided with a baffle (15), the front end surface side of the baffle (15) is provided with a moving mechanism (2), the moving mechanism (2) is fixedly connected with the baffle (15) through screws, the left end of the transmission case (3) is provided with a transmission shaft (5), a cam (4) is arranged on the periphery of the outer side of the transmission shaft (5), the cam (4) is fixedly sleeved with the transmission shaft (5), the left end of the transmission shaft (5) is provided with a rotating wheel (6), the rotating wheel (6) is fixedly connected with the transmission shaft (5) through bolts, the upper end of the transmission shaft (5) is provided with a transmission cylinder (7), the transmission cylinder (7) is electrically connected with a power supply, the upper end of the transmission cylinder (7) is, the upper end of moving mechanism (2) is provided with drawing board (11), the front end table side of drawing board (11) is provided with guide arm (10), the lower extreme of guide arm (10) is provided with sliding seat (9), second transfer line (12) have been cup jointed to the inside of sliding seat (9), the lower extreme of second transfer line (12) is provided with first transfer line (14), the right-hand member of first transfer line (14) is provided with limiting plate (13).

2. The four-stroke internal combustion engine valve timing curve generator of claim 1, wherein: the movable mechanism (2) comprises a guide rail (21), a sliding block (22), a toothed bar (23) and a connecting seat (24), the sliding block (22) is arranged on the front end surface side of the guide rail (21), the toothed bar (23) is arranged on the front end surface side of the sliding block (22), the connecting seat (24) is arranged on the upper side of the right end of the toothed bar (23), and the movable mechanism (2) is fixedly connected with the baffle (15) through the guide rail (21) through bolts.

3. The four-stroke internal combustion engine valve timing curve generator of claim 1, wherein: the component of transmission case (3) is including first gear (31), connecting rod (32), box (33), first steering gear (34) and second steering gear (35), the lower extreme of first gear (31) is provided with connecting rod (32), the lower extreme of connecting rod (32) is provided with box (33), the lower extreme of the inside of box (33) is provided with first steering gear (34), the left end of first steering gear (34) is provided with second steering gear (35), transmission case (3) are fixed through first gear (31) and moving mechanism (2) joint.

4. The four-stroke internal combustion engine valve timing curve generator of claim 1, wherein: the sliding seat is characterized in that the sliding seat (9) comprises a first side plate (91), a fixing seat (92), a laser pen (93), a positioning hole (94) and a second side plate (95), the fixing seat (92) is arranged at the front end of the laser pen (93), the first side plate (91) is arranged on the front end surface side of the fixing seat (92), the second side plate (95) is arranged at the front end of the first side plate (91), the positioning hole (94) is formed in the second side plate (95), and the sliding seat (9) is fixedly sleeved with the guide rod (10) through the positioning hole (94).

5. The four-stroke internal combustion engine valve timing curve generator of claim 1, wherein: the sliding seats (9) are provided with two, the two sliding seats (9) are arranged up and down respectively, the size and the specification of the two sliding seats (9) are the same, and guide rods (10) are fixedly sleeved in the two sliding seats (9).

6. The four-stroke internal combustion engine valve timing curve generator of claim 4, wherein: the size and specification of first curb plate (91) and second curb plate (95) are all the same, first curb plate (91) and second curb plate (95) are C type structure, the crossing department of first curb plate (91) and second curb plate (95) all passes through bolt fixed connection.

7. The four-stroke internal combustion engine valve timing curve generator of claim 3, wherein: the size and specification of the first steering gear (34) and the second steering gear (35) are the same, the first steering gear (34) and the second steering gear (35) are symmetrically arranged at ninety degrees respectively, and the steering directions of the first steering gear (34) and the second steering gear (35) are different.

8. The four-stroke internal combustion engine valve timing curve generator of claim 1, wherein: the vertical plate (8) is of a flat structure, the left end and the right end of the inside of the vertical plate (8) are respectively provided with a positioning groove, the inside of the positioning groove of the inside of the vertical plate (8) is respectively provided with a bearing, and the bearings of the inside of the vertical plate (8) can facilitate transmission.

Technical Field

The invention belongs to the technical field of internal combustion engine correlation, and particularly relates to a four-stroke internal combustion engine distribution phase curve generator.

Background

An internal combustion engine is a motive power machine which converts chemical energy in fuel into mechanical work. It can be divided into two-stroke internal combustion engines and four-stroke internal combustion engines according to the different working cycle strokes. The internal combustion engine mainly comprises seven parts, namely a crankshaft connecting rod mechanism, a valve actuating mechanism, a fuel system, a lubricating system, a cooling system, a starting system and an ignition system. The valve actuating mechanism is mainly used for opening and closing the air inlet and outlet valves of each cylinder at regular time according to the requirements of the working cycle, the working sequence and the valve actuating phase of the internal combustion engine, so that fresh combustible mixed gas or air enters the cylinders in time, waste gas is discharged in time, and the requirements of 'clean air exhaust, sufficient air inlet, full suction and complete discharge' are met, so that the working cycle of the internal combustion engine is realized.

The prior four-stroke internal combustion engine distribution phase curve generating instrument technology has the following problems: the connection stability of a crankshaft and a bevel gear shaft in the existing four-stroke internal combustion engine gas distribution phase curve generator is poor, the friction resistance of the bevel gear shaft is large when a positioning hole rotates, the range of up-and-down movement of a guide rod of ninety degrees at the tail end is not obvious due to the dead weight problem, and meanwhile, friction exists between a painting brush and a drawing board, so that the painting brush cannot draw a gas distribution phase curve on the drawing board smoothly.

Disclosure of Invention

The invention aims to provide a gas distribution phase curve generating instrument of a four-stroke internal combustion engine, which aims to solve the problems that a painting brush and a pattern plate of the traditional gas distribution phase curve generating instrument of the four-stroke internal combustion engine proposed in the background technology rub against each other, and the connection stability of a crankshaft and a bevel gear shaft is poor.

In order to achieve the purpose, the invention provides the following technical scheme: the four-stroke internal combustion engine distribution phase curve generator comprises a bottom plate and a transmission case, wherein the transmission case is arranged at the upper end of the bottom plate, the bottom plate is welded and fixed with the transmission case, a baffle is arranged at the rear end of the transmission case, a moving mechanism is arranged on the front end surface side of the baffle and fixedly connected with the baffle through screws, a transmission shaft is arranged at the left end of the transmission case, a cam is arranged on the periphery of the outer side of the transmission shaft and fixedly sleeved with the transmission shaft, a rotating wheel is arranged at the left end of the transmission shaft and fixedly connected with the transmission shaft through bolts, a transmission cylinder is arranged at the upper end of the transmission shaft and electrically connected with a power supply, a vertical plate is arranged at the upper end of the transmission cylinder, a drawing board is arranged at the upper end of the moving mechanism, a guide rod is arranged on the front end surface side of, the inside of sliding seat has cup jointed the second transfer line, the lower extreme of second transfer line is provided with first transfer line, the right-hand member of first transfer line is provided with the limiting plate.

Preferably, the moving mechanism comprises a guide rail, a sliding block, a toothed bar and a connecting seat, the sliding block is arranged on the front end surface side of the guide rail, the toothed bar is arranged on the front end surface side of the sliding block, the connecting seat is arranged on the upper side of the right end of the toothed bar, and the moving mechanism is fixedly connected with the baffle through the guide rail and a bolt.

Preferably, the constitution of transmission case is including first gear, connecting rod, box, first steering gear and second steering gear, the lower extreme of first gear is provided with the connecting rod, the lower extreme of connecting rod is provided with the box, the lower extreme of the inside of box is provided with first steering gear, the left end of first steering gear is provided with second steering gear, the transmission case is fixed through first gear and moving mechanism joint.

Preferably, the constitution of sliding seat is including first curb plate, fixing base, laser pen, locating hole and second curb plate, the front end of laser pen is provided with the fixing base, the front end table side of fixing base is provided with first curb plate, the front end of first curb plate is provided with the second curb plate, the inside of second curb plate is provided with the locating hole, the sliding seat cup joints fixedly through locating hole and guide arm.

Preferably, the number of the sliding seats is two, the two sliding seats are arranged vertically respectively, the size and the specification of the two sliding seats are the same, and guide rods are fixedly sleeved inside the two sliding seats.

Preferably, the size and the specification of the first side plate and the second side plate are the same, the first side plate and the second side plate are of a C-shaped structure, and the intersection of the first side plate and the second side plate is fixedly connected through bolts.

Preferably, the first steering gear and the second steering gear have the same size and specification, the first steering gear and the second steering gear are respectively arranged in ninety-degree symmetry, and the steering directions of the first steering gear and the second steering gear are different.

Preferably, the vertical plate is of a flat structure, the left end and the right end of the inside of the vertical plate are respectively provided with a positioning groove, the inside of each positioning groove of the inside of the vertical plate is respectively provided with a bearing, and the bearings of the inside of the vertical plate can facilitate transmission.

Compared with the prior art, the invention provides a four-stroke internal combustion engine distribution phase curve generator, which has the following beneficial effects:

(1) according to the invention, the crankshaft and the bevel gear shaft are combined into a whole, namely, two optical axes are processed into the stepped shaft, so that the instability can be eliminated through the transmission of the stepped shaft, and the rotation is more flexible;

(2) the bearing is arranged in the positioning groove to replace the original method that the shaft is directly arranged at the positioning groove so as to eliminate the friction resistance during rotation; meanwhile, a linear bearing is added in the sliding groove of the vertical plate, so that the friction of the guide rod of ninety degrees during left-right movement is reduced;

(3) in the invention, the painting brush is changed into the laser pen, so that the laser pen is not in direct contact with the drawing board, the friction between the painting brush and the drawing board is eliminated, and the problems that the painting brush and a pattern plate of the existing four-stroke internal combustion engine gas distribution phase curve generating instrument are mutually rubbed, and the connection stability of a crankshaft and a bevel gear shaft is poor are solved.

Drawings

FIG. 1 is a schematic structural diagram of a gas distribution phase curve generator of a four-stroke internal combustion engine according to the present invention;

FIG. 2 is a schematic structural diagram of a moving mechanism according to the present invention;

FIG. 3 is a schematic view of the transmission case of the present invention;

FIG. 4 is a schematic view of a sliding seat structure according to the present invention;

in the figure: 1. a base plate; 2. a moving mechanism; 21. a guide rail; 22. a slider; 23. a rack bar; 24. a connecting seat; 3. a transmission case; 31. a first gear; 32. a connecting rod; 33. a box body; 34. a first steering gear; 35. a second steering gear; 4. a cam; 5. a drive shaft; 6. a rotating wheel; 7. a transmission cylinder; 8. a vertical plate; 9. a sliding seat; 91. a first side plate; 92. a fixed seat; 93. a laser pen; 94. positioning holes; 95. a second side plate; 10. a guide bar; 11. a drawing board; 12. a second transmission rod; 13. a limiting plate; 14. a first drive lever; 15. and a baffle plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides the following technical solutions: the four-stroke internal combustion engine distribution phase curve generator comprises a bottom plate 1 and a transmission case 3, wherein the transmission case 3 comprises a first gear 31, a connecting rod 32, a case body 33, a first steering gear 34 and a second steering gear 35, the connecting rod 32 is arranged at the lower end of the first gear 31, the case body 33 is arranged at the lower end of the connecting rod 32, the first steering gear 34 is arranged at the lower end of the inside of the case body 33, the first steering gear 34 and the second steering gear 35 have the same size and specification, the first steering gear 34 and the second steering gear 35 are symmetrically arranged at ninety degrees respectively, so that friction can be reduced, the steering directions of the first steering gear 34 and the second steering gear 35 are different, the second steering gear 35 is arranged at the left end of the first steering gear 34, the transmission case 3 is fixed with a moving mechanism 2 through the first gear 31 in a clamping manner, the transmission case 3 is arranged at the upper end of the bottom plate 1, the bottom plate 1 is welded and fixed with the transmission case 3, the rear end of the transmission case 3 is provided with a baffle 15, the front end surface side of the baffle 15 is provided with a moving mechanism 2, the moving mechanism 2 comprises a guide rail 21, a slide block 22, a rack bar 23 and a connecting seat 24, the front end surface side of the guide rail 21 is provided with the slide block 22, the front end surface side of the slide block 22 is provided with the rack bar 23, the upper side of the right end of the rack bar 23 is provided with the connecting seat 24, the moving mechanism 2 is fixedly connected with the baffle 15 through the guide rail 21 by bolts, the moving mechanism 2 is fixedly connected with the baffle 15 through bolts, the left end of the transmission case 3 is provided with a transmission shaft 5, the outer periphery of the transmission shaft 5 is provided with a cam 4, the cam 4 is fixedly sleeved with the transmission shaft 5, the left end of the transmission shaft 5 is provided with a rotating wheel 6, the rotating wheel 6 is, the upper end of the transmission cylinder 7 is provided with a vertical plate 8, the vertical plate 8 is of a flat structure, the left end and the right end inside the vertical plate 8 are respectively provided with a positioning groove, the inside of the positioning groove inside the vertical plate 8 is respectively provided with a bearing, so that better transmission can be realized, the bearing inside the vertical plate 8 can make transmission more convenient, the upper end of the moving mechanism 2 is provided with a drawing board 11, the front end surface side of the drawing board 11 is provided with a guide rod 10, the lower end of the guide rod 10 is provided with a sliding seat 9, the sliding seat 9 comprises a first side plate 91, a fixed seat 92, a laser pen 93, a positioning hole 94 and a second side plate 95, the front end of the laser pen 93 is provided with a fixed seat 92, the front end surface side of the fixed seat 92 is provided with the first side plate 91, the front end of the first side plate 91 is provided with the second side plate 95, the first side plate 91 and the second side plate, first curb plate 91 all passes through bolt fixed connection with the crossing department of second curb plate 95, sliding seat 9 is provided with two altogether, two sliding seat 9 are arranged from top to bottom respectively, the size and the specification of two sliding seat 9 are all the same, the inside of two sliding seat 9 all cup joints and is fixed with guide arm 10, the inside of second curb plate 95 is provided with locating hole 94, sliding seat 9 cup joints fixedly through locating hole 94 and guide arm 10, second transfer line 12 has been cup jointed to sliding seat 9's inside, the lower extreme of second transfer line 12 is provided with first transfer line 14, the right-hand member of first transfer line 14 is provided with limiting plate 13.

The working principle and the using process of the invention are as follows: after the device is installed, whether the device can work normally is firstly checked, whether the connection between a plug and a socket on an electric wire is finished is checked, if abnormal noise occurs, the device is immediately closed to wait for maintenance of a professional, when the device is used, the rotating wheel 6 is firstly rotated, the cam 4 is driven to move through the transmission shaft 5 under the driving of the rotating wheel 6, so that the two cams 4 installed on the transmission shaft 5 rotate along with the shaft to drive the first steering gear 34 and the second steering gear 35 in the transmission box 3 to be in meshing transmission, the moving mechanism 2 is driven to move, the two cams 4 rotate along with the transmission shaft 5 to push the two tappets to move up and down and drive the shaft to swing, the opening and closing of the air inlet and outlet valves are further controlled, the two cross rods connected to the tappets through a three-way pipe move up and down along with the tappets, thereby pushing the two tappets to move up and down and driving the rocker shaft to swing, and the two horizontal guide rails connected with the two tappets move up and down along with the tappets; meanwhile, the first steering gear 34 and the second steering gear 35 are in meshing transmission to transmit motion to the inside of the moving mechanism 2, so that a sliding block 22 in the moving mechanism 2 can rotate along with a shaft and drive a toothed bar 23 to move left and right, a vertical guide rod 10 fixed on the toothed bar 23 moves left and right along with the toothed bar 23, a cross sliding seat 9 is installed on a horizontal guide rail and a vertical guide rod 10 and moves along with the horizontal guide rail and the vertical guide rod 10, a laser pen 93 is fixed at the center of the sliding seat 9 and moves along with the sliding seat 9, the motion trail formed by the left movement, the right movement and the vertical movement of the laser pen is a gas distribution phase curve, a drawing board 11 is connected with an auxiliary wood board through bolts, the laser pen 93 is just connected with the drawing board 11, the drawn trail curve is a displacement curve formed by the toothed bar 23 and a tappet rod, and the curve is the gas distribution phase curve, in addition, two triangular rib plates are added on the rack with the fixed rack so as to increase the stability; the vertical plate 8 with the straight groove is additionally arranged at the tail ends of the cross sliding seat 9 and the tappet, so that the two tappets are prevented from being deformed due to self weight, and the early opening and late closing and valve overlapping opening phenomena of an intake valve and an exhaust valve can be more clearly shown.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.