CN2893165Y - Locomotive engine - Google Patents

Abstract

The utility model relates to a locomotive engine. The locomotive engine comprises a crankcase, a gas cylinder, a gas cylinder head, a chain, a chain guide plate, and an engine oil guide plate; wherein, the crankcase comprises an engine oil pump, a crankshaft, and a crankshaft main bearing and holds engine oil inside; the crankshaft is nested in the crankshaft main bearing; the gas cylinder is connected with the crankcase; the gas cylinder head is connected with the gas cylinder and an engine oil pump and is provided with a camshaft; the chain is connected with the camshaft and the crankshaft; the chain guide board is positioned below the chain and near the chain; the chain guide board stretches from the gas cylinder head to the crankshaft of the crankcase; the engine oil guide plate borders up the crankshaft and the chain and is connected the chain guide plate and the crankshaft main bearing, and the engine oil in the gas cylinder head flows to the crankshaft main bearing under the guidance of the engine oil guide plate. The utility model may make the effect of lubricating the crankshaft main bearing (ball bearing) available, thereby prolonging the service life of the crankshaft main bearing (ball bearing).

Description

Locomotive engine

Technical field

The utility model relates to a kind of locomotive engine, particularly the locomotive engine that more promotes relevant for a kind of lubrication effect that makes its crankshaft main bearing.

Background technique

See also Fig. 1 and Fig. 2, a known locomotive engine 1 is made of a crankcase 10, a cylinder head 20 and a cylinder 30.In addition, in crankcase 10, also dispose a bent axle 11, an oil pump 12, diaxon bearing 13 and two crankshaft main bearings 14.Machine oil in the crankcase 10 can be pumped to cylinder head 20, cylinder 30, bent axle 11 and other assembly etc. via oil pump 12 and locate, so that countercylinder head 20, cylinder 30, bent axle 11 and other assembly etc. are lubricated effect respectively, at last, machine oil meeting following current is back to the bottom of crankcase 10, so can finish the oil circulation greasing in the locomotive engine 1.

Diaxon bearing 13 all is to be fixed among the crankcase 10.Two crankshaft main bearings 14 normally adopt ball bearing, and are to be sheathed on respectively among the diaxon bearing 13.11 on bent axle is to be sheathed among two crankshaft main bearings 14.As mentioned above, bent axle 11 can be done high speed rotating via two crankshaft main bearings 14.

As shown in Figure 1, also be provided with a camshaft 21 among cylinder head 20, camshaft 21 is again the bent axle 11 that is connected in via a chain 40 in the crankcase 10, so when bent axle 11 rotations, camshaft 21 also can be rotated by the transmission of chain 40.

In addition, still as shown in Figure 1, also be provided with a chain guide 50 below chain 40, this chain guide 50 is to be arranged among cylinder head 20, cylinder 30 and the crankcase 10 along with the configuration of chain 40.Specifically, chain guide 50 is except can be used to support chains 40, and its machine oil 0 guiding that also can be used to be accumulated in the cylinder head 20 is back among the crankcase 10.More detailed, by oil pump 12 pumps to the machine oil 0 of cylinder head 20 when accumulation arrives a specific fuel head, machine oil 0 just can prolong chain guide 50 and flow back among the crankcase 10 along with the transmission of chain 40.

Yet as mentioned above, crankshaft main bearing 14 directly is not subjected to the lubricated of machine oil 0, and it only is to rely on the oil droplet of the machine oil 0 that splashes in the crankcase 10 and lubricated.Therefore, under the situation of lack of lubrication, can significantly reduce the working life of crankshaft main bearing 14, that is crankshaft main bearing 14 can be easy to take place fatigue damage.

The model utility content

The purpose of this utility model provides the locomotive engine that a kind of lubrication effect that makes its crankshaft main bearing more promotes.

The utility model adopts as detailed below feature with in order to solve the above problems basically.That is to say that of the present utility model being characterised in that comprises a crankcase, have an oil pump, a bent axle and at least one crankshaft main bearing, and accommodate machine oil, wherein, this crankshaft main bearing is fixed among this crankcase, and this bent axle is sheathed among this crankshaft main bearing; One cylinder is connected in this crankcase; One cylinder head is connected in this cylinder and this oil pump, and has a camshaft; One chain is connected between this camshaft and this bent axle, and wherein, when this crankshaft rotating, this camshaft is by the transmission of chain and rotate; One chain guide is arranged under this chain, and is adjacent to this chain, and wherein, this chain guide extends to the bent axle of this crankcase from this cylinder head; An and machine oil guide plate, be adjacent to bent axle and chain, and be connected between chain guide and the crankshaft main bearing, wherein, machine oil in this crankcase is to be sent to by lashing of this oil pump among this cylinder head, machine oil in this cylinder head is prolonging chain guide and is flowing to this bent axle along with the transmission of chain, and flow among this crankshaft main bearing via the guiding of this machine oil guide plate, with lubricated this crankshaft main bearing.

Simultaneously, according to locomotive engine of the present utility model, this crankshaft main bearing is a ball bearing, and this ball bearing has a plurality of gaps and a plurality of steel ball, these steel balls are arranged at respectively among these gaps, and this machine oil runs through these gaps via the guiding of machine oil guide plate.

In the utility model, this crankcase has more at least one bearing support again, is to be fixed among the crankcase, and crankshaft main bearing is fixed among the bearing support.

The utility model can be reached the effect of lubricated crankshaft main bearing 114 (ball bearing), and then can promote the working life of crankshaft main bearing 114 (ball bearing).

Description of drawings

Fig. 1 shows the side-looking generalized section of a known locomotive engine;

Fig. 2 shows the part top cross-sectional view according to the known locomotive engine of Fig. 1

Fig. 3 shows the side-looking generalized section of locomotive engine of the present utility model;

Fig. 4 shows the part top cross-sectional view of the utility model locomotive engine;

The part enlarged diagram of Fig. 5 displayed map 4.

Symbol description

1,100 ~ locomotive engine

10,110 ~ crankcase

11,112 ~ bent axle

12,111 ~ oil pump

13,113 ~ bearing support

14,114 ~ crankshaft main bearing

114a ~ gap

114b ~ steel ball

20,130 ~ cylinder head

21,131 ~ camshaft

30,120 ~ cylinder

40,140 ~ chain

50,150 ~ chain guide

160 ~ machine oil guide plate

170 ~ bolt

O ~ machine oil

Embodiment

For the utility model above-mentioned purpose, feature and advantage can be become apparent, preferred embodiment cited below particularly also cooperates appended graphic elaborating.

Now cooperate graphic explanation preferred embodiment of the present utility model.

See also Fig. 3 and Fig. 4, the locomotive engine 100 of present embodiment mainly includes a crankcase 110, a cylinder 120, a cylinder head 130, a chain 140, a chain guide 150 and a machine oil guide plate 160.

Crankcase 110 has an oil pump 111, a bent axle 112, diaxon bearing 113 and two crankshaft main bearings 114.Diaxon bearing 113 is to be fixed among the crankcase 110 in mode respect to one another, and two crankshaft main bearings 114 are to be individually fixed among the diaxon bearing 113.112 on bent axle is to be sheathed on simultaneously among two crankshaft main bearings 114, and thus, bent axle 112 can be done high speed rotating via two crankshaft main bearings 114.In addition, among crankcase 110, also accommodate machine oil 0, and two crankshaft main bearings 114 can be to adopt ball bearing.

Cylinder 120 is connected in crankcase 110.Cylinder head 130 is connected in the oil pump 111 in cylinder 120 and the crankcase 110, and cylinder head 130 has a camshaft 131.

Chain 140 is between the camshaft 131 and the bent axle 112 in the crankcase 110 that is connected in the cylinder head 130, and therefore, when bent axle 112 rotations, camshaft 131 can rotate via the transmission of chain 140.

Chain guide 150 is arranged under the chain 140, and is adjacent to chain 140, and simultaneously, chain guide 150 extends to the bent axle 112 of crankcase 110 from cylinder head 130.At this, a function of chain guide 150 is to be used for support chains 140.

Machine oil guide plate 160 is arranged within the crankcase 110.More detailed, as shown in Figure 5, machine oil guide plate 160 is adjacent to bent axle 112 and chain 140, and machine oil guide plate 160 is connected between chain guide 150 and the crankshaft main bearing 114.In addition, machine oil guide plate 160 can be locked within the crankcase 110 via a bolt 170.

As mentioned above, the machine oil 0 in the crankcase 110 can be sent among the cylinder head 130 via lashing of its oil pump 111, is lubricated with countercylinder head 130.And when the machine oil in the cylinder head 130 0 when accumulation arrives a specific fuel head, as shown in Figure 3, machine oil 0 just can prolong chain guide 150 along with the transmission of chain 140 and flow to bent axle 112 places.Then, machine oil 0 can flow among the crankshaft main bearing 114, so that crankshaft main bearing 114 is lubricated via the guiding of machine oil guide plate 160.

In addition, because the crankshaft main bearing 114 of present embodiment is to adopt ball bearing, so ball bearing can have a plurality of gap 114a and a plurality of steel ball 114b usually, as shown in Figure 5.Steel ball 114b is arranged at respectively among the 114a of gap, and machine oil 0 can run through gap 114a via the guiding of machine oil guide plate 160, so can reach the effect of lubricated crankshaft main bearing 114 (ball bearing), and then can promote the working life of crankshaft main bearing 114 (ball bearing).

Though the utility model is exposed in preferred embodiment; right its is not in order to limit the utility model; anyly have the knack of this skill person; in not breaking away from spirit and scope of the present utility model; when doing a little change and retouching, therefore protection domain of the present utility model is as the criterion when looking the claim person of defining.

Claims (3)

1. locomotive engine is characterized in that comprising:

One crankcase has an oil pump, a bent axle and at least one crankshaft main bearing, and accommodates machine oil, and wherein, this crankshaft main bearing is fixed among the crankcase, and bent axle is sheathed among the crankshaft main bearing;

One cylinder is connected in this crankcase;

One cylinder head is connected in this cylinder and this oil pump, and has a camshaft;

One chain is connected between this camshaft and this bent axle, and wherein, when this crankshaft rotating, this camshaft rotates via the transmission of chain;

One chain guide is arranged under the chain, and is adjacent to this chain, and wherein, this chain guide extends to the bent axle of this crankcase from this cylinder head;

One machine oil guide plate, be adjacent to bent axle and this chain, and be connected between chain guide and this crankshaft main bearing, wherein, this machine oil in this crankcase is sent to via lashing of this oil pump in this cylinder head, and this machine oil in this cylinder head prolonging chain guide and flowing to bent axle along with the transmission of chain, and flow among the crankshaft main bearing via the guiding of machine oil guide plate, with lubricated this crankshaft main bearing.

2. locomotive engine according to claim 1, it is characterized in that crankshaft main bearing is a ball bearing, this ball bearing has a plurality of gaps and a plurality of steel ball, and these steel balls are arranged at respectively among these gaps, and this machine oil runs through these gaps via the guiding of this machine oil guide plate.

3. locomotive engine according to claim 1 is characterized in that crankcase has more at least one bearing support, is to be fixed among this crankcase, and this crankshaft main bearing is fixed among the bearing support.

Images