CN2818827Y

CN2818827Y - Starter of diesel engine

Info

Publication number: CN2818827Y
Application number: CN 200520112578
Authority: CN
Inventors: 韩启龙
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-07-05
Filing date: 2005-07-05
Publication date: 2006-09-20
Anticipated expiration: 2015-07-05

Abstract

The utility model relates to a starter of a diesel engine, which comprises a machine frame, a belt pulley and a driving belt, wherein the belt pulley is fixed on one end of a camshaft. The camshaft can be rotatablely arranged on the machine frame along a longitudinal direction, and the other end of the camshaft is provided with a cam. A cam crank is arranged on the cam along an axial direction, and the external end of the cam crank is rotatablely connected with one end of a connecting rod. The other end of the connecting rod is connected with the external end of a reversing piston rod of a pneumatic reversing valve by a pin shaft. A reversing piston is arranged on the middle part of the reversing piston rod. The reversing piston is matched with the side wall of a cylinder barrel in the pneumatic reversing valve and divides the cylinder barrel into a left chamber and a right chamber. The left chamber is connected with a vent hole of a left exhaust chamber of a two-position three-way scavenging valve by a left air passage, and the right chamber is connected with a vent hole of a right exhaust chamber of the two-position three-way scavenging valve by a right air passage. Valve stems which can slide along a lateral direction are arranged in the left exhaust chamber and the right exhaust chamber. The aim of the utility model is to provide a starter of a diesel engine, which has convenient operation and good starting ability under a low temperature.

Description

The diesel engine starting drive

Technical field

The utility model relates to a kind of startup auxiliary device of combustion engine, relates in particular to a kind of device that starts diesel engine.

Background technique

Existing diesel engine generally all is to adopt manual cranking, perhaps adopts electricity to start.The shortcoming of manual cranking is time-consuming, effort, and the situation that joystick is injured the people takes place easily, and the cost of electric starter is higher.In addition, under the low temperature situation, manual cranking or electricity startup are all difficult starts diesel engine, can bring many difficulties to people thus.

The model utility content

The purpose of this utility model is to provide a kind of use easy to operate, the diesel engine starting drive that starting performance is good under the low temperature situation.

Diesel engine starting drive of the present utility model, comprise frame, belt pulley and drivign belt, described belt pulley is fixed on an end of camshaft, camshaft longitudinally can be installed on the described frame rotationally, the other end of camshaft is equipped with cam, the cam upper edge is axially arranged with the cam crank, the outer end of cam crank can link to each other rotationally with an end of connecting rod, the other end of connecting rod adopts bearing pin to link to each other with the outer end of the reversing piston bar of air operated reversing valve, the middle part of reversing piston bar is provided with reversing piston, reversing piston matches with the sidewall of the valve body inner casing tube of air operated reversing valve, and cylinder barrel is divided into left chamber and right chamber, left chamber links to each other with the exhaust port of the left bank air chamber of two-position three way scavenging air valve by left air flue, described right chamber communicates by the exhaust port of right air flue with the right exhaust chamber of two-position three way scavenging air valve, the edge laterally can be provided with valve rod slidably in described left bank air chamber and the right exhaust chamber, the middle part of valve rod is respectively equipped with left spool and the right spool that matches with left bank air chamber and right exhaust chamber sidewall, a left side spool and right spool are separated left bank air chamber and right exhaust chamber and sub-air chamber respectively, the suction port of sub-air chamber communicates with suction tude, the left end of described valve rod links to each other with the right-hand member of guide rod, the left end of guide rod links to each other with rolling wheel support, rolling wheel support is provided with roller, the left surface of roller matches with the right flank of described cam, there is Returnning spring on the right-hand member top of described valve rod, and the outside of described drivign belt is provided with manual belt clamping device.

Diesel engine starting drive of the present utility model, wherein said manual belt clamping device comprises the belt tension wheel that pastes mutually with described drivign belt, the belt tension wheel can be installed in the outer end of fork rotationally, the inner end of fork adopts the fork axle to be installed on the described frame, the outer end of fork is connected with the fork backguy, the control end of fork backguy is connected on the handle, and handle adopts rotating shaft to be installed on the described frame, and the outside of described drivign belt is provided with pulley holder.

Diesel engine starting drive of the present utility model, a side of wherein said belt pulley is provided with bent axle, and the outer end of bent axle can that rotate link to each other with left end location guide, and the right-hand member of location guide is inserted in the positioning work piece.

Diesel engine starting drive of the present utility model, wherein said positioning work piece comprises the adjustment sleeve, the left end of adjusting sleeve adopts screw thread that block is installed, its right-hand member adopts screw thread or welded and installed that locator seats is arranged, the outer end of locator seats can be installed on the locator seats pillar rotationally, and the locator seats pillar is fixed on the described frame, and the middle part of described location guide can be passed described block slidably, its right-hand member is provided with boss, on the left end top of boss spring is arranged.

Diesel engine starting drive of the present utility model, the two ends of wherein said valve rod are respectively equipped with left end spool and the right-hand member spool that matches with left bank air chamber and right exhaust chamber sidewall, the sidewall of left bank air chamber left end is provided with several left bank gas ports, and the sidewall of described right exhaust chamber right-hand member is provided with several right relief openings.

Diesel engine starting drive of the present utility model, the middle part of wherein said camshaft are set with two bearings, and two bearing housings are contained in the bearing support, and bearing support adopts and is bolted on the described frame.

Diesel engine starting drive of the present utility model, wherein said two-position three way scavenging air valve is fixed on the described valve body, and valve body is fixed on the described frame.

Diesel engine starting drive of the present utility model, wherein said suction tude communicates with the scavenging air valve relief opening, and the suction port of scavenging air valve communicates with gas bag by pipeline, and the ventilation spool of scavenging air valve links to each other with pull bar, and pull bar links to each other with controlling rod by balance staff.

Compare with existing diesel engine starting drive, diesel engine starting drive of the present utility model, it adopts advanced design, belt pulley is fixed on an end of camshaft, camshaft longitudinally can be installed on the frame rotationally, the other end of camshaft is equipped with cam, the cam upper edge is axially arranged with the cam crank, the outer end of cam crank can link to each other rotationally with an end of connecting rod, the other end of connecting rod adopts bearing pin to link to each other with the outer end of the reversing piston bar of air operated reversing valve, the middle part of reversing piston bar is provided with reversing piston, reversing piston matches with the sidewall of the valve body inner casing tube of air operated reversing valve, and cylinder barrel is divided into left chamber and right chamber, left chamber links to each other with the exhaust port of the left bank air chamber of two-position three way scavenging air valve by left air flue, right chamber communicates by the exhaust port of right air flue with the right exhaust chamber of two-position three way scavenging air valve, the edge laterally can be provided with valve rod slidably in left bank air chamber and the right exhaust chamber, the middle part of valve rod is respectively equipped with left spool and the right spool that matches with left bank air chamber and right exhaust chamber sidewall, a left side spool and right spool are separated left bank air chamber and right exhaust chamber and sub-air chamber respectively, the suction port of sub-air chamber communicates with suction tude, the left end of valve rod links to each other with the right-hand member of guide rod, the left end of guide rod links to each other with rolling wheel support, rolling wheel support is provided with roller, the left surface of roller matches with the right flank of cam, there is Returnning spring on the right-hand member top of valve rod, and the outside of drivign belt is provided with manual belt clamping device.So it is easy to operate that diesel engine starting drive of the present utility model has use, the good characteristics of starting performance under the low temperature situation.

Other details of diesel engine starting drive of the present utility model and characteristics can just can be cheer and bright by reading the embodiment hereinafter encyclopaedize in conjunction with the accompanying drawings.

Description of drawings

Fig. 1 is the plan view of the structural representation of diesel engine starting drive of the present utility model;

Fig. 2 is the plan view of Fig. 1;

Fig. 3 is the structural representation of the control system of diesel engine starting drive.

Embodiment

As Fig. 1, Fig. 2 and shown in Figure 3, diesel engine starting drive of the present utility model, comprise frame 1, belt pulley 2, belt pulley 2 ' and drivign belt 3, the outside of drivign belt 3 is equipped with pulley holder 46, when drivign belt 3 is in relaxation state, pulley holder 46 can guarantee drivign belt 3 can not break away from belt pulley 2 and belt pulley 2 ', belt pulley 2 ' then be sleeved on the bent axle of diesel engine, when belt pulley 2 ' rotation, the bent axle that will drive diesel engine rotates, thereby diesel engine is started.

Belt pulley 2 is fixed on an end of camshaft 4, and the middle part of camshaft 4 is set with two bearings, and two bearing housings are contained in the bearing support 41, and bearing support 41 adopts and is bolted on the frame 1.The other end at camshaft 4 is equipped with cam 5, cam 5 upper edges are axially arranged with cam crank 6, the outer end of cam crank 6 can link to each other rotationally with an end of connecting rod 7, the other end of connecting rod 7 adopts bearing pin to link to each other with the outer end of the reversing piston bar 9 of air operated reversing valve 8, the middle part of reversing piston bar 9 is provided with reversing piston 10, reversing piston 10 matches with the sidewall of the valve body 11 inner casing tubes of air operated reversing valve 8, and cylinder barrel is divided into left chamber 12 and right chamber 13, left chamber 12 links to each other with the exhaust port of the left bank air chamber 17 of two-position three way scavenging air valve 16 by left air flue 14, right chamber 13 communicates by the exhaust port of right air flue 15 with the right exhaust chamber 18 of two-position three way scavenging air valve 16, two-position three way scavenging air valve 16 is fixed on the valve body 11, and valve body 11 is fixed on the frame 1.The edge laterally can be provided with valve rod 19 slidably in left bank air chamber 17 and the right exhaust chamber 18, the middle part of valve rod 19 is respectively equipped with left spool 20 and the right spool 21 that matches with left bank air chamber 17 and right exhaust chamber 18 sidewalls, the two ends of valve rod 19 are respectively equipped with left end spool 39 and the right-hand member spool 40 that matches with left bank air chamber 17 and right exhaust chamber 18 sidewalls, the sidewall of left bank air chamber 17 left ends is provided with several left bank gas ports 47, and the sidewall of described right exhaust chamber 18 right-hand members is provided with several right relief openings 48.Left side spool 20 and right spool 21 are separated left bank air chamber 17 and right exhaust chamber 18 respectively with sub-air chamber 22, the suction port of sub-air chamber 22 communicates with suction tude 23, suction tude 23 communicates with scavenging air valve 42 relief openings 63, the suction port 62 of scavenging air valve 42 communicates with gas bag 43 by pipeline, the

ventilation spool

67,68 of scavenging air valve 42 links to each other with pull bar 61, and pull bar 61 links to each other with controlling rod 59 by balance staff 66.Promptly can adjust the position of

ventilation spool

67,68 by controlling rod 59, thereby can make scavenging air valve 42 be in different states.

The left end of above-mentioned valve rod 19 links to each other with the right-hand member of guide rod 24, the left end of guide rod 24 links to each other with rolling wheel support 25, rolling wheel support 25 is provided with roller 26, the left surface of roller 26 matches with the right flank of cam 5, there is Returnning spring 27 on the right-hand member top of valve rod 19, and the outside of drivign belt 3 is provided with manual belt clamping device.

Manually belt clamping device comprises the belt tension wheel 28 that pastes mutually with drivign belt 3, belt tension wheel 28 can be installed in the outer end of fork 29 rotationally, the inner end of fork 29 adopts the fork axle to be installed on the bearing support 41, the outer end of fork 29 is connected with fork backguy 30, the control end of fork backguy 30 is connected on the handle 31, and handle 31 adopts rotating shaft 70 to be installed on the frame 1.

Side at belt pulley 2 is provided with bent axle 32, and the left end with location guide 33 that the outer end of bent axle 32 can be rotated links to each other, and the right-hand member of location guide 33 is inserted in the positioning work piece 34.Positioning work piece 34 comprises adjusts sleeve 35, the left end of adjusting sleeve 35 adopts screw thread that block 36 is installed, its right-hand member adopts screw thread or welded and installed that locator seats 45 is arranged, the outer end of locator seats 45 can be installed on the locator seats pillar 37 rotationally, locator seats pillar 37 is fixed on the frame 1, the middle part of location guide 33 can be passed block 36 slidably, and its right-hand member is provided with boss 44, on the left end top of boss 44 spring 38 is arranged.When diesel engine is in off working state, cam crank 6 on the cam 5 might be in dead zone location, thereby bring difficulty for the startup diesel engine, for this reason, can utilize above-mentioned positioning work piece 34 and location guide 33, the cam crank 6 on the cam 5 is reset at the position that start a favourable next time.

Diesel engine starting drive of the present utility model in use, the control end of fork backguy 30 that can be by being positioned at handle 31 places affects fork backguy 30, make fork 29 towards drivign belt 3 swings, the belt tension wheel 28 that is positioned at fork 29 tops will compress drivign belt 3, but makes it be in drive state.Meanwhile, can open scavenging air valve 42 by control gear, make gas bag 43 and suction tude 23 connect, pressurized gas will enter the sub-air chamber 22 of two-position three way scavenging air valve 16 by suction tude 23, if this moment, sub-air chamber 22 was in communicating state with right exhaust chamber 18, and be in state of isolation with left bank air chamber 17, the right relief opening 48 that while right-hand member spool 40 will be positioned at right exhaust chamber 18 right-hand members is again closed, pressurized gas will enter in the right exhaust chamber 18 by sub-air chamber 22, right air flue 15 by air operated reversing valve 8 enters right chamber 13 again, the gas of left chamber 12 then can enter left bank air chamber 17 by left air flue 14, discharge by several left bank gas ports 47 that are positioned at left bank air chamber 17 left ends again, the pressurized gas that enter right chamber 13 will promote reversing piston 10 to left movement, 10 drive reversing pistons of reversing piston bar 9 is to left movement, 9 on reversing piston bar promotes connecting rod 7, connecting rod 7 is again by cam crank 6 actuating cams 5 rotating certain angle, in this process, the roller 26 that pastes mutually with the right flank of cam 5 can be along with the rotation of cam 5, and begin to move right, and then the resistance that the valve rod 19 that promotes two-position three way scavenging air valve 16 overcomes Returnning spring 27 moves right, so, right spool 21 on the valve rod 19 can make between sub-air chamber 22 and the right exhaust chamber 18 and closing, the right relief opening 48 that while right-hand member spool 40 will be positioned at right exhaust chamber 18 right-hand members is again opened, left side spool 20 can make between sub-air chamber 22 and the left bank air chamber 17 to be opened, left end spool 39 can be closed left bank gas port 47 simultaneously, pressurized gas from suction tude 23 will enter in the left bank air chamber 17 by sub-air chamber 22, left air flue 14 by air operated reversing valve 8 enters left chamber 12 again, the gas of right chamber 13 then can enter right exhaust chamber 18 by right air flue 15, discharge by several right relief openings 48 that are positioned at right exhaust chamber 18 left ends again, the pressurized gas that enter left chamber 12 will promote reversing piston 10 and move right, 10 drive reversing pistons of reversing piston bar 9 moves right, 9 on reversing piston bar promotes connecting rod 7, connecting rod 7 is rotated further certain angle by cam crank 6 actuating cams 5 again, and makes cam 5 finish a circle rotation.The cam 5 of rotation can drive camshafts 4 and rotate, and makes belt pulley 2 rotate thereupon, and drivign belt 3 again can drags pulley 2 ' rotates, thus diesel engine is started.

After diesel engine is started, can affect fork backguy 30 by the control end of fork backguy 30, make fork 29 towards the direction swing away from drivign belt 3, the belt tension wheel 28 that is positioned at fork 29 tops will unclamp drivign belt 3, and making it be in can not drive state.

Embodiment recited above is described preferred implementation of the present utility model; be not that design of the present utility model and scope are limited; do not breaking away under the utility model design concept prerequisite; common engineers and technicians make the technical solution of the utility model in related domain various modification and improvement; all should fall into protection domain of the present utility model; the technology contents that the utility model is asked for protection all is documented in claims.

Claims

1. diesel engine starting drive, comprise frame (1), belt pulley (2) and drivign belt (3), it is characterized in that described belt pulley (2) is fixed on an end of camshaft (4), camshaft (4) longitudinally can be installed on the described frame (1) rotationally, the other end of camshaft (4) is equipped with cam (5), cam (5) upper edge is axially arranged with cam crank (6), the outer end of cam crank (6) can link to each other rotationally with an end of connecting rod (7), the other end of connecting rod (7) adopts bearing pin to link to each other with the outer end of the reversing piston bar (9) of air operated reversing valve (8), the middle part of reversing piston bar (9) is provided with reversing piston (10), reversing piston (10) matches with the sidewall of valve body (11) the inner casing tube of air operated reversing valve (8), and cylinder barrel is divided into left chamber (12) and right chamber (13), left chamber (12) links to each other with the exhaust port of the left bank air chamber (17) of two-position three way scavenging air valve (16) by left air flue (14), described right chamber (13) communicates by the exhaust port of right air flue (15) with the right exhaust chamber (18) of two-position three way scavenging air valve (16), the edge laterally can be provided with valve rod (19) slidably in described left bank air chamber (17) and the right exhaust chamber (18), the middle part of valve rod (19) is respectively equipped with left spool (20) and the right spool (21) that matches with left bank air chamber (17) and right exhaust chamber (18) sidewall, left side spool (20) and right spool (21) are separated left bank air chamber (17) and right exhaust chamber (18) respectively with sub-air chamber (22), the suction port of sub-air chamber (22) communicates with suction tude (23), the left end of described valve rod (19) links to each other with the right-hand member of guide rod (24), the left end of guide rod (24) links to each other with rolling wheel support (25), rolling wheel support (25) is provided with roller (26), the left surface of roller (26) matches with the right flank of described cam (5), there is Returnning spring (27) on the right-hand member top of described valve rod (19), and the outside of described drivign belt (3) is provided with manual belt clamping device.

2. diesel engine starting drive according to claim 1, it is characterized in that described manual belt clamping device comprises the belt tension wheel (28) that pastes mutually with described drivign belt (3), belt tension wheel (28) can be installed in the outer end of fork (29) rotationally, the inner end of fork (29) adopts the fork axle to be installed on the described frame (1), the outer end of fork (29) is connected with fork backguy (30), the control end of fork backguy (30) is connected on the handle (31), handle (31) adopts rotating shaft (70) to be installed on the described frame (1), and the outside of described drivign belt (3) is provided with pulley holder (46).

3. diesel engine starting drive according to claim 2, a side that it is characterized in that described belt pulley (2) is provided with bent axle (32), the left end with location guide (33) that the outer end of bent axle (32) can be rotated links to each other, and the right-hand member of location guide (33) is inserted in the positioning work piece (34).

4. diesel engine starting drive according to claim 3, it is characterized in that described positioning work piece (34) comprises adjustment sleeve (35), the left end of adjusting sleeve (35) adopts screw thread that block (36) is installed, its right-hand member adopts screw thread or welded and installed that locator seats (45) is arranged, the outer end of locator seats (45) can be installed on the locator seats pillar (37) rotationally, locator seats pillar (37) is fixed on the described frame (1), the middle part of described location guide (33) can be passed described block (36) slidably, its right-hand member is provided with boss (44), on the left end top of boss (44) spring (38) is arranged.

5. diesel engine starting drive according to claim 4, the two ends that it is characterized in that described valve rod (19) are respectively equipped with left end spool (39) and the right-hand member spool (40) that matches with left bank air chamber (17) and right exhaust chamber (18) sidewall, the sidewall of left bank air chamber (17) left end is provided with several left bank gas ports (47), and the sidewall of described right exhaust chamber (18) right-hand member is provided with several right relief openings (48).

6. diesel engine starting drive according to claim 5 is characterized in that the middle part of described camshaft (4) is set with two bearings, and two bearing housings are contained in the bearing support (41), and bearing support (41) adopts and is bolted on the described frame (1).

7. diesel engine starting drive according to claim 6 is characterized in that described two-position three way scavenging air valve (16) is fixed on the described valve body (11), and valve body (11) is fixed on the described frame (1).

8. according to any one described diesel engine starting drive in the claim 1 to 7, it is characterized in that described suction tude (23) communicates with the relief opening (63) of scavenging air valve (42), the suction port (62) of scavenging air valve (42) communicates with gas bag (43) by pipeline, the ventilation spool of scavenging air valve (42) (67,68) links to each other with pull bar (61), and pull bar (61) links to each other with controlling rod (59) by balance staff (66).