CN218235260U - Diesel engine with external balance block - Google Patents
Diesel engine with external balance block Download PDFInfo
- Publication number
- CN218235260U CN218235260U CN202222504941.1U CN202222504941U CN218235260U CN 218235260 U CN218235260 U CN 218235260U CN 202222504941 U CN202222504941 U CN 202222504941U CN 218235260 U CN218235260 U CN 218235260U
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- balance
- diesel engine
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- block
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Abstract
The utility model belongs to the technical field of the diesel engine technique and specifically relates to an external balancing piece diesel engine provides one kind and can be for the diesel engine of balance performance between adjustment bent axle and the balance axle, improves the operational reliability of diesel engine and improves people to the comfort level of work diesel engine and feel, and this diesel engine has organism, bent axle and balance axle, the epaxial fan-shaped piece that has an organic whole and set up of balance, be step-like through-hole to the supported hole of balance axle one end bearing on the organism, the step face fender of supported hole is on the outer terminal surface of bearing inner race, the balance axle has the outer erection segment that stretches out from this supported hole, install the outer balancing piece of eccentric form on the outer erection segment, be equipped with the closing cap of lid on supported hole, outer erection segment and outer balancing piece on the organism.
Description
Technical Field
The utility model belongs to the technical field of the diesel engine technique and specifically relates to an external balancing piece diesel engine.
Background
Because of the structural limitation of the single-cylinder air-cooled diesel engine, the reciprocating balance and the rotating balance generated in the operation process of the diesel engine are difficult to realize only by the weight of the crankshaft sector block, therefore, a balance shaft needs to be added for assistance in the structure to realize the complete balance of the whole engine; the crankshaft drives the balance shaft through a pair of meshed gears, the rotation directions of the crankshaft and the balance shaft are opposite but the acting force directions are the same, the reciprocating inertia force and the rotating inertia force generated in the operation process of the diesel engine are counteracted by the eccentric moment of the crankshaft and the eccentric moment of the balance shaft together, the existing single-cylinder air-cooled diesel engine with the structure or another single-cylinder air-cooled diesel engine with the similar structure has an obvious defect, and due to the limitation of the existing production and processing technology, the masses of the crankshaft fan-shaped block and the balance shaft fan-shaped block are uneven, so that the problem that the diesel engine vibrates abnormally during working is directly caused, and the adjustment cannot be carried out.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: the diesel engine can artificially adjust the balance performance between the crankshaft and the balance shaft, improve the operation reliability of the diesel engine and improve the comfort feeling of people to the working diesel engine.
The utility model provides a technical scheme that its technical problem adopted is: the utility model provides an external balancing piece diesel engine, has organism, bent axle and balance shaft, the last fan-shaped piece that has an organic whole and set up of balance shaft, the support hole to balance shaft one end bearing on the organism is step-like through-hole, and the step face in support hole keeps off on the outer terminal surface of bearing inner race, the balance shaft has the outer installation section that stretches out from this support hole, install the outer balancing piece of eccentric form on the outer installation section, be equipped with the closing cap of lid on support hole, outer installation section and outer balancing piece on the organism.
Specifically, in order to reduce the occupation of the sector blocks on the internal space of the machine body, on the basis of reducing the mass of the sector blocks, the eccentric direction of the outer balance block is consistent with the eccentric direction of the sector blocks on the balance shaft, and the outer balance block compensates the deficiency of the eccentric force of the sector blocks.
In one particular arrangement, the outer balance weight is keyed to the outer mounting section.
Specifically, the outer balance weight is fixed in an anti-falling mode through a bolt and a check ring at the end of the outer mounting section.
Specifically, a sealing gasket is arranged between the sealing cover and the machine body.
The utility model has the advantages that: the utility model discloses an external balancing piece diesel engine stretches out the organism with the balance shaft, increases the balancing piece outside the organism, and the advantage is: 1. the balance blocks are replaceable, and when the diesel engine is tested, the balance blocks with different eccentric weights and/or eccentric directions can be selected, so that the diesel engine has better balance performance, and vibration and noise are reduced; 2. and one part of the occupied space of the balance block is transferred from the inside of the machine body to the outside of the machine body, so that the structural design of the inner cavity of the machine body is facilitated.
Drawings
The present invention will be further described with reference to the accompanying drawings and embodiments.
Fig. 1 is an exploded view of the body member and balance shaft member of the present invention;
fig. 2 is an axial sectional view of the balance shaft of the present invention showing the assembling relationship.
In the figure, 1, a machine body 1-1, a support hole 2, a balance shaft 2-1, a sector block 2-2, an outer installation section 3, an outer balance block 4, a sealing cover 5, a bolt 6, a retainer ring 7, a sealing gasket 8 and a key.
Detailed Description
The invention will now be further described with reference to the accompanying drawings. The drawings are simplified schematic diagrams only illustrating the basic structure of the present invention in a schematic manner, and thus show only the components related to the present invention.
An external balance block diesel engine is disclosed, as shown in an exploded structure of a drawing 1 and a partial section structure of a drawing 2, and comprises an engine body 1, a crankshaft and a balance shaft 2, wherein a fan-shaped block 2-1 is integrally arranged on the balance shaft 2, a support hole 1-1 of the engine body 1 for a bearing at one end of the balance shaft 2 is a step-shaped through hole, the step surface of the support hole 1-1 is blocked on the outer end surface of the outer ring of the bearing, the balance shaft 2 is provided with an external installation section 2-2 extending from the support hole 1-1, the external installation section 2-2 is provided with an eccentric external balance block 3, and the engine body 1 is provided with a sealing cover 4 covering the support hole 1-1, the external installation section 2-2 and the external balance block 3; the eccentric direction of the outer balance block 3 is consistent with the eccentric direction of the fan-shaped block 2-1 on the balance shaft 2; the outer balance block 3 is in key connection with the outer mounting section 2-2, the key connection structure is that corresponding key grooves are arranged on the outer balance block 3 and the outer mounting section 2-2, keys are arranged in the key grooves, and the key connection structure can be in another spline connection form; the outer balance block 3 is fixed by a bolt 5 and a check ring 6 at the end part of the outer mounting section 2-2 in an anti-falling way; a sealing gasket 7 is arranged between the sealing cover 4 and the machine body 1.
When the structure of the utility model is realized, a plurality of external balance blocks 3 with series sizes need to be manufactured in advance, different external balance blocks 3 are respectively marked, trial run is started from the external balance block 3 with middle specification during trial run, if the external balance block 3 with larger mass is replaced for the second time, if vibration is intensified, the external balance block 3 with smaller mass than the first time needs to be replaced, if vibration is reduced, but when adjustment is needed, the external balance block 3 with larger mass needs to be replaced; if the outer balance weight 3 with smaller mass is used for the second time, the operation can be performed according to the reverse idea.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and the protection scope of the present invention can not be limited thereby, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (5)
1. The utility model provides an external balancing piece diesel engine, has organism (1), bent axle and balance shaft (2), have fan-shaped piece (2-1) of an organic whole setting on balance shaft (2), characterized by: the bearing balance mechanism is characterized in that a supporting hole (1-1) of a bearing at one end of a balance shaft (2) on the mechanism body (1) is a step-shaped through hole, the step surface of the supporting hole (1-1) is blocked on the outer end surface of a bearing outer ring, the balance shaft (2) is provided with an outer mounting section (2-2) extending out of the supporting hole (1-1), an eccentric outer balance block (3) is mounted on the outer mounting section (2-2), and a sealing cover (4) covering the supporting hole (1-1), the outer mounting section (2-2) and the outer balance block (3) is arranged on the mechanism body (1).
2. The diesel engine with external balance weight as set forth in claim 1, wherein: the eccentric direction of the outer balance block (3) is consistent with the eccentric direction of the fan-shaped block (2-1) on the balance shaft (2).
3. The diesel engine with external balance weight as set forth in claim 1, wherein: the outer balance block (3) is connected to the outer mounting section (2-2) in a key coupling mode.
4. The diesel engine with external balance weight as set forth in claim 3, wherein: the outer balance block (3) is fixed in an anti-falling mode through a bolt (5) and a check ring (6) at the end part of the outer mounting section (2-2).
5. The diesel engine with external balance weight as set forth in claim 1, wherein: a sealing gasket (7) is arranged between the sealing cover (4) and the machine body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222504941.1U CN218235260U (en) | 2022-09-21 | 2022-09-21 | Diesel engine with external balance block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222504941.1U CN218235260U (en) | 2022-09-21 | 2022-09-21 | Diesel engine with external balance block |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218235260U true CN218235260U (en) | 2023-01-06 |
Family
ID=84665912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222504941.1U Active CN218235260U (en) | 2022-09-21 | 2022-09-21 | Diesel engine with external balance block |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218235260U (en) |
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2022
- 2022-09-21 CN CN202222504941.1U patent/CN218235260U/en active Active
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