JPH03504406A - engine gear box assembly - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] engine gear box assembly The present invention relates to an internal combustion engine and gearbox assembly for driving a load.

Internal combustion engine output shaft, where the engine often performs optimally in terms of power production The rotational speed range and economy of loads such as centrifugal pumps or generators are It does not match the optimal speed. Therefore, it is often a fixed ratio A gearbox is interposed between the engine and the load to maintain the optimal speed of both the engine and the load. It must be made to match.

According to the invention, the output shaft has an output shaft and a pressurized lubrication mechanism including a passage in the output shaft. an internal combustion engine and a speed converting gearbox with an input element drivingly connected to the crankshaft In an engine gear box assembly comprising: a crankshaft pressurized lubricant supply conduit; from said passage through a substantially pressure-tight bearing to a gear coaxial with the crankshaft. extending axially into another passageway in one element in the box, said other passageway being connected to a tooth. It forms part of the pressurized lubricant supply mechanism for the car box, and lubrication is supplied from this lubricant supply mechanism. Engine gearbox assembly that allows fluid to return to the engine sump The body is provided.

This arrangement allows all journal bearings in the gear box to connect to other oil pumps. Allows to be pressure lubricated without the need. This means that the gear box is a planetary gear box. This is particularly advantageous if the bearing is of the planetary type, in which case the planetary pinion bearing is , a feed passage in the planetary carrier (fixed or rotatable) fed from said other passage. can be supplied with lubricant under pressure.

If the planet carrier is fixed to the engine output shaft and rotates with it, If so, lubricate the planetary pinion bearing so that it is supplied with lubricant under pressure from the output shaft conduit. A lubricant passage is formed and the bearing for the sun or ring gear of the planetary gearbox is under pressure through said bearing which positions the sun or ring gear relative to the engine output shaft. It is convenient for the lubricant to be supplied to the lubricant.

Embodiments of the invention will now be described by way of example with reference to the accompanying drawings. .

Figure 1 is an axial sectional view of the upper half of the centrifugal pump and gear box of a portable fire pump. , Figure 2 shows an axial cross-section of the assembly of the centrifugal supercharger and planetary gear box installed in the engine. It is a front view.

The portable fire pump, a part of which is shown in Figure 1, consists of a crankcase 11 and a crankcase. It comprises a reciprocating piston-cylinder engine 10, of which a portion of the rank shaft 12 is shown. , the output end 13 of the crankshaft 12 is inserted into the crankcase 11 by a flat bearing 14. is supported by

The gear box casing 15 has outer flanges 16 and 17 which are The end face of the crankcase 11 and the casing of the centrifugal pump 20 are connected by screws 18 and 19. 21, respectively.

The pump shaft 22 carries a pump rotor 23 forming an impeller and is supported by a plane bearing 24. It is rotatably supported in a gear box casing 15. Axis 22 is another supported at the extension 25 of the crankshaft end neck 13 by a plane bearing sleeve 26; This bearing sleeve 26 is free-floating and supports one or more radial directions of the pump shaft. A central ring is formed having an oil hole 26a aligned with hole 26b.

The extension 25 is externally splined and connects to the hub 27 on the powder coupling 28. I try to engage. At each end, the hub 27 has a frustoconical surface 29A. And the corresponding center ring 30A.

30B, and when the nut 31 at the end thereof is tightened, it engages with the crankshaft extension 25. and center the hub 27 accurately.

The two-part case of the powder coupling 28 is attached to the hub 27 by the ring of the cap screw 32. Things 33A and 33B are fixed. These two casing parts are bolted 34 and steel shot type powder and planetary gear set. A corrugated washer is bolted to a ring gear 37 which has teeth integrally attached to the gear 36. A chamber C is defined, which accommodates an output element 35 in the form of a camera. this ring teeth The wheel 37 is supported by a pair of ball bearings 38. Chamber C is sealed with a suitable seal 39. It is sealed to prevent powder from being lost, and another oil seal 40 prevents oil from being lost. protected from contamination.

The sun gear 41 is splined onto the pump shaft 22 and fixed by a nut 42. Ru. One set of planetary pinions 43 of the planetary gear set 36 is arranged in the radial direction of the housing 15. It is supported on the bottle 44 of the planet carrier 45 fixed to the opposite wall 46 (oil hole 4 3b).

A rotary seal 47 prevents water (or other incoming liquid) from entering the bearing 24. This rotary seal 47 itself is protected by an oil seal 48, and both of these The seal is mounted in the bore 49 of the casing 15 and cooperates with the pump shaft 22.

In order to provide pressurized lubrication to all journal bearings inside the casing 15, the shaft A passage 51 in the direction is provided by drilling in the end portion 25 of the crankshaft 12 and therein The large end with the journal bearing 13.14 communicates with the formed orthogonal passage 52. Pressurized lubricant is supplied to the bearing (not shown). aisle 51 communicates with the passage 53 of the pump shaft 22 and thus also with the hole 26b. aisle 53 The end communicates with a radial passage 54 that supplies lubricant to the pump shaft bearing 24. half The radial passageway 54 further includes a pair of holes drilled in the wall 46 and plugged at the outer end 56 thereof. lubricant is supplied to the radial passages 55 of.

The lubricant flows from the radial hole 55 to the oil hole 43b and the inside of the bearing bushing 43a. through side passages 57 leading to holes 58 and 59 in bottle 44 communicating with both outer surfaces. is supplied to the bin 44 under pressure.

Thus, during operation, oil under pressure from the engine's normal lubrication system flows into the passage 51. into the passage 53 (of course there is some oil loss, but it is essentially oil-tight). (with a bearing 26 forming a seal). Inner and outer surfaces of bearing 26 The surface is therefore pressure-fed with lubricant. Similarly, the bearing 24 has a planetary pinion 4 The lubricant is supplied under pressure through a passage 54 which supplies oil under pressure to the bearing for 3. be done. Furthermore, the ball bearing 38 and the teeth of the gears 37, 41 and 43 are connected to the pressure supply shaft. It is now lubricated by the oil mist created by the oil flowing out from the receiver. Ru.

A discharge passage (not shown) between the lower part of the gear case 15 and the crankcase 11 is The oil is returned to a normal oil sump formed in the lower part of the crankcase 11.

Powder coupling 28 prevents engine damage that might otherwise damage the gear teeth. The planetary gear set 36 is protected from torsional vibration generated inside the engine 10. This is it This causes some slippage during startup.

In the supercharger device shown in Fig. 2, the parts corresponding to the parts shown in Fig. 1 are 100 plus the same reference numerals.

The supercharger 120 is a centrifugal type and is attached to the engine crankcase 111. A back plate 101 fixed to a gear box housing 115 by a cap screw 102 has other It has a spiral casing 121 fixed by a cap screw 119.

The output hub 103 is activated by the key 104 and the engine clamp 105. It is fixed to the end 113 of the link shaft. The planet carrier 145 is held by the cap screw 106. is fixed to the hub 103. The sun gear 141 has one end attached to the planet carrier 145. It is supported by a free-floating bearing 126, and the other end is connected to the back of the supercharger by a cap screw 108. It is supported by a free-floating bearing 124 of a cover member 107 fixed to the plate 101. Thick A rod-shaped extension part 161 is formed integrally with the positive gear 141, and this extension part 161 is , rotate the turbocharger rotor 123 at its free end and fix it to the member 164. Fix the octopus seal member 164 to the end face of the right shaft neck portion of the sun gear 141. It supports a nut 162 and a washer 163.

A stationary fan-shaped seal member 165 is engaged with the annular groove of the rotary seal member 164 and forms a truncated cone. The rotary seal member 164 and the cap member 107 are connected by a shaped spring washer 166. is held in sealing contact with both surfaces of the

A planetary pinion 143 with a larger diameter than the sun gear 141 is connected to the sun gear. an annular ring with internal teeth secured to the gear box housing 115 by a screw 167; It engages with the body 137. The planetary pinion 143 is free-floating by a free-floating plane bearing 168. It is rotatably attached to the bin 144 fixed to the star carrier 145, and the bearing 168 is It has an oil hole 168a.

Oil under pressure enters a crankshaft side conduit 17 leading to a conduit 172 in the hub 103. 1 and from the engine lubrication system through the central conduit 151 of the crankshaft 112. The planet carrier 145 passes through the hole 173 of the bottle 144 to release oil. so as to supply both the inner and outer surfaces of the bearing 168 for the star binion 143. There is. The conduit 151 connects the crankshaft portion 113, the retaining nut 105 and the solar pinion. connected by further central conduits 174, 175 and 176 of tube 141 and under pressure. oil in both bearings 126 and 124 of sun gear 141 carrying rotor 123 We are trying to supply it to the surface.

The seal formed by the rotating seal member 164 and the fixed seal 165 is Oil from bearing 124 passes through another conduit 177 formed in pool member 107. Lubricated under pressure by.

Oil escaping from this seal passes through passage 178 to gearbox no. 1 housing 115. returned inside. This oil, along with the oil from the other bearings mentioned above, The oil is returned to the engine sump through a return conduit 179 formed in the housing 115. Ru.

If necessary, install a separable latch between the engine crankshaft and the supercharger rotor. can be included at a convenient location on the drive. This clutch is controlled by the driver or other factors such as fuel distribution or ignition timing in the case of spark-ignited engines. under the operation of an electronic engine operating mechanism for the engine that also controls the elements of the engine. be able to.

Submission of translation of written amendment (Article 184-8 of the Patent Law) November 27, 1990 Commissioner of the Patent Office Toshi Ue Matsu ■ Display of patent application PCT/GB8910 O566 2. Name of the invention engine gear box assembly 3 Patent applicant Name: Collins Motor Translation of Cohora Silan Amendment Book 　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　 　 engine gear box assembly The present invention relates to an internal combustion engine and gearbox assembly for driving a load.

Internal combustion engine output shaft, where the engine often performs optimally in terms of power generation The rotational speed range and economy of loads such as centrifugal pumps or generators are It does not match the optimal speed. Therefore, it is often a fixed ratio A gearbox is interposed between the engine and the load to maintain the optimal speed of both the engine and the load. It must be made to match.

According to the invention, the output shaft has an output shaft and a pressurized lubrication mechanism including a passage in the output shaft. an internal combustion engine and a speed converting gearbox with an input element drivingly connected to the crankshaft In an engine gear box assembly comprising: a crankshaft pressurized lubricant supply conduit; from said passage through a substantially pressure-tight bearing to a gear coaxial with the crankshaft. extending axially into another passageway in one element in the box, said other passageway being connected to a tooth. Part of the pressurized lubricant supply mechanism for the journal bearing for the meshing gears in the car box. This lubricant supply mechanism allows lubricant to return to the engine sump. An engine gear box assembly is provided.

This arrangement allows all journal bearings in the gear box to connect to other oil pumps. Allows to be pressure lubricated without the need. This means that the gear box is a planetary gear box. This is particularly advantageous if the bearing is of the planetary type, in which case the planetary pinion bearing is , a feed passage in the planetary carrier (fixed or rotatable) fed from said other passage. can be supplied with lubricant under pressure.

If the planet carrier is fixed to the engine output shaft and rotates with it, If so, lubricate the planetary pinion bearing so that it is supplied with lubricant under pressure from the output shaft conduit. A lubricant passage is formed and the bearing for the sun or ring gear of the planetary gearbox is under pressure through said bearing which positions the sun or ring gear relative to the engine output shaft. It is convenient for the lubricant to be supplied to the lubricant.

Embodiments of the invention will now be described by way of example with reference to the accompanying drawings. .

Figure 1 is an axial sectional view of the upper half of the centrifugal pump and gear box of a portable fire pump. , Figure 2 shows an axial cross-section of the assembly of the centrifugal supercharger and planetary gear box installed in the engine. It is a front view.

The portable fire pump, a part of which is shown in Figure 1, consists of a crankcase 11 and a crankcase. It comprises a reciprocating piston-cylinder engine 10, of which a portion of the rank shaft 12 is shown. , the output end 13 of the crankshaft 12 is inserted into the crankcase 11 by a flat bearing 14. is supported by

The gear box casing 15 has outer flanges 16 and 17 which are The end face of the crankcase 11 and the casing of the centrifugal pump 20 are connected by screws 18 and 19. 21, respectively.

The pump shaft 22 carries a pump rotor 23 forming an impeller and is supported by a plane bearing 24. It is rotatably supported in a gear box casing 15. Axis 22 is another supported at the extension 25 of the crankshaft end neck 13 by a plane bearing sleeve 26; This bearing sleeve 26 is free-floating and supports one or more radial directions of the pump shaft. A central ring is formed having an oil hole 26a aligned with hole 26b.

The extension 25 is externally splined and connects to the hub 27 on the powder coupling 28. I try to engage. At each end, the hub 27 has a frustoconical surface 29A. And the corresponding center ring 30A.

30B, and when the nut 31 at the end thereof is tightened, it engages with the crankshaft extension 25. and center the hub 27 accurately.

The two-part case of the powder coupling 28 is attached to the hub 27 by the ring of the cap screw 32. Things 33A and 33B are fixed. These two casing parts are bolted 34 and steel shot type powder and planetary gear set. A corrugated washer is bolted to a ring gear 37 which has teeth integrally attached to the gear 36. A chamber C is defined, which accommodates an output element 35 in the form of a camera. this ring teeth The wheel 37 is supported by a pair of ball bearings 38. Chamber C is sealed with a suitable seal 39. It is sealed to prevent powder from being lost, and another oil seal 40 prevents oil from being lost. protected from contamination.

The sun gear 41 is splined onto the pump shaft 22 and fixed by a nut 42. Ru. One set of planetary pinions 43 of the planetary gear set 36 is arranged in the radial direction of the housing 15. (by means of a planet-carrying bushing 43a fixed to the opposite wall 46).

A rotary seal 47 prevents water (or other incoming liquid) from entering the bearing 24. This rotary seal 47 itself is protected by an oil seal 48, and both of these The seal is mounted in the bore 49 of the casing 15 and cooperates with the pump shaft 22.

In order to provide pressurized lubrication to all journal bearings inside the casing 15, the shaft A passage 51 in the direction is provided by drilling in the end portion 25 of the crankshaft 12 and therein The large end with the journal bearing 13.14 communicates with the formed orthogonal passage 52. Pressurized lubricant is supplied to the bearing (not shown). aisle 51 communicates with the passage 53 of the pump shaft 22 and thus also with the hole 26b. aisle 53 The end communicates with a radial passage 54 that supplies lubricant to the pump shaft bearing 24. half The radial passage 54 further includes a set of holes drilled in the wall 46 and plugged at their outer ends 5G. lubricant is supplied to the radial passages 55 of.

The lubricant flows from the radial hole 55 to the oil hole 43b and the inside of the bearing bushing 43a. through side passages 57 leading to holes 58 and 59 in bottle 44 communicating with both outer surfaces. is supplied to the bin 44 under pressure.

Thus, during operation, oil under pressure from the engine's normal lubrication system flows into the passage 51. into the passage 53 (of course there is some oil loss, but it is essentially oil-tight). (with a bearing 26 forming a seal). Inner and outer surfaces of bearing 26 The surface is therefore pressure-fed with lubricant. Similarly, the bearing 24 has a planetary pinion 4 The lubricant is supplied under pressure through a passage 54 which supplies oil under pressure to the bearing for 3. be done. Furthermore, the ball bearing 38 and the teeth of the gears 37, 41 and 43 are connected to the pressure supply shaft. It is now lubricated by the oil mist created by the oil flowing out from the receiver. Ru.

A discharge passage (not shown) between the lower part of the gear case 15 and the crankcase 11 is The oil is returned to a normal oil sump formed in the lower part of the crankcase 11.

Powder coupling 28 prevents engine damage that might otherwise damage the gear teeth. The planetary gear set 36 is protected from torsional vibration generated inside the engine 10. This is it This results in some slippage during startup.

In the supercharger device shown in Fig. 2, the parts corresponding to the parts shown in Fig. 1 are 100 plus the same reference numerals.

The supercharger 120 is a centrifugal type and is attached to the engine crankcase 111. A back plate 101 fixed to a gear box housing 115 by a cap screw 102 has other It has a spiral casing 121 fixed by a cap screw 119.

The output hub 103 is connected to the engine crankshaft by the key 104 and the retaining nut Io5. is fixed to the end 113 of. The planet carrier 145 is held in place by the cap screw 106. 103. One end of the sun gear 141 is free floating on the planet carrier 145. It is supported by a dynamic bearing 126, and the other end is connected to the back plate 10 of the supercharger by a retaining screw 108. The cover member 107 is supported by a free-floating bearing 124 fixed to the cover member 107 . sun gear A rond-like extension part 161 is formed integrally with the extension part 141. The rotor 123 of the supercharger is fixed to the rotary seal member 164 at the free end, and the Nut 1 for fixing the roll member 164 to the end face of the right shaft neck portion of the sun gear 141 62 and a washer 163.

A stationary fan-shaped seal member 165 is engaged with the annular groove of the rotary seal member 164 and forms a truncated cone. The rotary seal member 164 and the cap member 107 are connected by a shaped spring washer 166. is held in sealing contact with both surfaces of the

A planetary pinion 143 with a larger diameter than the sun gear 141 is connected to the sun gear. an annular ring with internal teeth secured to the gear box housing 115 by a screw 167; It engages with the body 137. The planetary pinion 143 is free-floating by a free-floating plane bearing 168. It is rotatably attached to the bin 144 fixed to the star carrier 145, and the bearing 168 is It has an oil hole 168a.

Oil under pressure enters a crankshaft side conduit 17 leading to a conduit 172 in the hub 103. 1 and from the engine lubrication system through the central conduit 151 of the crankshaft 112. The planet carrier 145 passes through the hole 173 of the bottle 144 to release oil. so as to supply both the inner and outer surfaces of the bearing 168 for the star binion 143. There is. The conduit 151 connects the crankshaft portion 113, the presser neck I-105, and the solar vinyl. Connected by further central conduits 174, 175 and 176 of on 141 and pressure The lower oil is transferred to both bearings 126 and 124 of sun gear 141 carrying rotor 123. I try to supply it to both sides.

The seal formed by the rotating seal member 164 and the fixed seal 165 is Oil from bearing 124 passes through another conduit 177 formed in pool member 107. Lubricated under pressure by.

Oil escaping from this seal passes through passage 178 into gear box housing 115. returned inside. This oil, along with the oil from the other bearings mentioned above, is returned to the engine sump through a return conduit 179 formed in the engine sump 115. .

If necessary, install a separable latch between the engine crankshaft and the supercharger rotor. can be included at a convenient location on the drive. This clutch is controlled by the driver or other factors such as fuel distribution or ignition timing in the case of spark-ignited engines. under the operation of an electronic engine operating mechanism for the engine that also controls the elements of the engine. be able to.

The scope of the claims 1. An internal combustion engine having an output shaft and a pressurized lubrication mechanism including a passage in the output shaft; a speed converting gearbox with a force element drivably connected to the output shaft; In the gearbox and gear box assembly, a pressurized lubricant supply conduit in the output shaft is connected to the passageway. axially from a gear box coaxial with said output shaft through a substantially pressure-tight bearing; into another passageway in one element of the It forms part of a pressurized lubricant supply mechanism for journal bearings for gears, and the lubricant An engine that allows lubricant from the supply mechanism to return to the engine sump. Jin gear box assembly.

2. The gear box has a pressure lubricated planetary pinion that meshes with the sun gear and/or ring gear. 2. The assembly of claim 1, wherein the assembly is a planetary gear box having a carrying planet carrier.

3. The assembly of claim 2, wherein the gear box is a planetary gear box.

4. A lubricant conduit connecting said other passage to the bearing for the planetary binion of the gear box. An assembly according to claim 2 or 3, comprising:

5. The planet carrier is fixed to the engine output shaft, and the lubricant conduit of the planet carrier is connected to the supply lead. The other passageway is connected to a tube such that the other passage supplies lubricant to the sun gear or ring gear bearing. 4. An assembly according to claim 3, wherein the assembly is connected in a straight line.

6. At least one bearing has a free-floating sleeve or a lubricant passage through the wall. An assembly according to any of the preceding claims, further comprising a bushing.

7. The engine is a reciprocating piston-cylinder engine, and the input element of the gear box But the output through the coupling can be sufficiently grooved to absorb the torsional vibration of the output shaft. An assembly according to any of the preceding claims, wherein the assembly is driveably connected to a shaft.

Procedural amendment (formality) %formula% 1.Display of the incident PCT/GB89100566 2. Name of the invention engine gear box assembly 3. Person who makes corrections Relationship to the incident Patent applicant Name: Collins Motor Co., Ltd. 4. Agent Address: 6o-8-10 Toranomon-chome, Minato-ku, Tokyo 105 Subject to amendment (1) “Representative of the patent applicant” in writing pursuant to the provisions of Article 184-5, Paragraph 1 of the Patent Law ” column (2) Translation of the description and scope of claims (3) Power of attorney 7. Contents of correction (1) (3) As per attached sheet (2) Translation of the specification and claims (no changes to the content) 8. List of attached documents (1) Amended Article 184 of the Patent Act 5. Document pursuant to the provisions of paragraph 1: 1 copy (2) Translation of the description and scope of claims One copy each (3) Power of attorney and its translation One copy each Procedural amendment (formality) %formula% 1.Display of the incident PCT/GB8910 O566 λ Name of invention engine gear box assembly 3. Person who makes corrections Relationship to the incident Patent applicant Name Collins Motor Corporation Limited 4. Agent Address: 8-10-6 Toranomon-chome, Minato-ku, Tokyo 105, subject to amendment Translation of written amendment pursuant to the provisions of Article 184-8 of the Patent Act≠Chinese mute 7. Contents of correction Engraving of the translation of the written amendment (no change in content) 8. List of attached documents Engraving of translation of amendment 1 copy of international search report PCT/GB 89100566

Claims (7)

[Claims] 1. an internal combustion engine having an output shaft and a pressurized lubrication mechanism including a passage in the output shaft; a speed converting gearbox with a force element drivably connected to the output shaft; In the gearbox and gear box assembly, a pressurized lubricant supply conduit in the output shaft is connected to the passageway. axially from a gear box coaxial with said output shaft through a substantially pressure-tight bearing; into another passage in one element of the It forms part of a lubricant supply mechanism, and the lubricant is supplied to the engine oil sump from the lubricant supply mechanism. Engine gear box assembly allowing you to return to the original position. 2. The gear box carries a pressure lubricated planetary pinion that meshes with the sun gear and/or ring gear. 2. The assembly of claim 1, wherein the assembly is a planetary gear box having a carrying planet carrier. 3. 3. An assembly according to claim 2, wherein the gear box is a planetary gear box. 4. a lubricant conduit connecting said other passageway for the planetary pinion of the gear box; An assembly according to claim 2 or 3. 5. The planet carrier is fixed to the engine output shaft, and the planet carrier's lubricant conduit is connected to the supply conduit. The other passageway is connected to a tube such that the other passage supplies lubricant to the sun gear or ring gear bearing. 4. An assembly according to claim 3, wherein the assembly is connected in a straight line. 6. The at least one bearing may be a free-floating sleeve or sleeve having a lubricant passage through the wall. An assembly according to any of the preceding claims, wherein the assembly comprises a bushing. 7. The engine is a reciprocating piston-cylinder engine, and the input element of the gear box is , the output shaft through a coupling that can slide sufficiently to absorb the torsional vibration of the output shaft An assembly according to any of the preceding claims, wherein the assembly is drivably connected to.