CN206830251U - A kind of engine timing chain lubrication assembly - Google Patents

Abstract

This utility model discloses an engine timing chain lubrication assembly, belonging to the field of engine components. It includes a connecting mechanism for connecting to the engine block, and a positioning and injection mechanism that is rotatably and sealingly connected to the connecting mechanism. The connecting mechanism has an inner oil passage communicating with the engine oil passage, and a connecting oil hole connecting the inner oil passage to the outside of the connecting mechanism. The positioning and injection mechanism has an injection hole and a positioning mechanism for positioning with the engine block. When the positioning and injection mechanism rotates sealingly around the connecting mechanism, its injection hole is always connected to the inner oil passage through the connecting oil hole. This utility model is convenient and quick to process and install, and provides accurate oil jet injection.

Description

Engine timing chain lubricating assembly

technical field

The utility model belongs to the field of engine parts, in particular to an engine timing chain lubricating assembly.

Background technique

At present, the engine tends to be miniaturized, and the structure of the engine is becoming more and more complex and compact. Compared with the traditional engine, the timing chain system of the new engine has more transmission chains and less space, and the lubrication of the chains is relatively difficult. If the timing chain cannot be well lubricated, the chain system is easy to wear and the noise will increase, especially when the oil change interval becomes longer, the impurities in the oil will aggravate the wear of the chain. At present, most timing chain lubricating nozzles in the market are tubular nozzles. One is that the single oil pipe is bent and directly press-fitted with the cylinder block (as shown in Figure 1). Correct, it affects the normal lubrication of the chain; the other is that the fuel injection pipe is connected with the positioning block, and then fixed with the cylinder block by bolts (as shown in Figure 2). This method has a large space size and the direction of the elbow is complicated, which is not conducive to processing.

Utility model content

The purpose of the utility model is to provide an engine timing chain lubricating assembly, which is convenient and quick to process and install, and the oil beam is sprayed accurately.

The purpose of this utility model is achieved through the following technical solutions:

An engine timing chain lubricating assembly, including a connection mechanism used to connect with the engine block, and a positioning injection mechanism that is sealed and rotated connected with the connection mechanism, the connection mechanism is provided with an inner oil passage that communicates with the engine oil passage, and a communication The inner oil passage communicates with the oil hole outside the connecting mechanism. The positioning injection mechanism is provided with an oil injection hole and a positioning mechanism for positioning with the engine block. When the positioning injection mechanism rotates around the connection mechanism, the oil injection hole is always It communicates with the inner oil passage through the connecting oil hole.

In this patent, the connecting mechanism is connected and fixed to the engine cylinder block, and the positioning mechanism is used for component positioning to ensure the accurate position of the oil injection hole and ensure that the engine oil is effectively injected to the timing chain. During the working process, the oil passes through the inner oil passage and the connecting oil hole, and finally sprays to the timing chain through the oil injection hole.

Alternatively, the connecting mechanism is a bolt, the inner oil passage is arranged axially along the bolt, and the connecting oil hole is arranged radially.

As a further option, the bolt is T-shaped, with an inner hexagonal structure at the upper end of the bolt, and an external thread for connecting with the engine cylinder at the lower end of the bolt. In this scheme, after the lower end of the bolt is threadedly connected with the engine block, the inner oil passage is directly connected with the engine oil passage; the inner hexagonal structure is used for screwing the bolt, fastening the bolt or removing it.

As an option, the positioning injection mechanism includes a fixedly connected metal ring and a connecting piece, the metal ring is sealed and sleeved outside the connecting mechanism and is rotatably connected with the connecting mechanism, the metal ring is provided with an oil injection hole, and the connecting piece is provided with a positioning mechanism.

As a further option, an annular oil chamber surrounding the connecting mechanism is formed between the metal ring and the connecting mechanism, and the communicating oil hole and the oil injection hole communicate with the annular oil chamber respectively. In this scheme, the connecting oil hole and the oil injection hole are indirectly connected through the annular oil chamber to ensure that when the metal rotates around the connecting mechanism, the connecting oil hole and the oil injection hole are always connected, forming an engine oil passage, an inner oil passage, and a connecting oil hole in sequence. , ring oil cavity, complete oil injection circuit of oil injection hole.

As another further option, the positioning mechanism is a positioning pin. In this solution, the position of the connecting piece is fixed by the positioning pin, thereby fixing the position of the oil injection hole on the metal ring.

As another further option, the connecting piece is socketed and fixed outside the metal ring.

The foregoing main scheme of the utility model and its further selection schemes can be freely combined to form multiple schemes, which are all schemes that the utility model can adopt and claim protection; and the utility model, (each non-conflicting selection) selection and Free combinations are also possible between other options. After understanding the solution of the present invention, those skilled in the art can understand that there are various combinations according to the prior art and common knowledge, all of which are the technical solutions to be protected by the utility model, and are not exhaustive here.

Beneficial effects of the utility model: the engine timing chain lubricating assembly of the utility model is convenient and quick to process and install, and the oil beam is sprayed accurately.

Description of drawings

Fig. 1 is a structural schematic diagram of prior art interference press fitting;

Fig. 2 is the structural representation of prior art bolt connection;

Fig. 3 is the three-dimensional structure schematic diagram of the utility model embodiment;

Fig. 4 is a schematic diagram of an axial section structure of an embodiment of the utility model;

In the figure, a bolt 1, a metal ring 2, a connecting piece 3, a positioning pin 4, an inner oil passage 5, a communicating oil hole 6, an annular oil chamber 7, and an oil injection hole 8.

detailed description

Below in conjunction with specific embodiment and accompanying drawing, the utility model is further described.

Referring to Figures 3 and 4, a timing chain lubricating assembly for an engine includes a connecting mechanism for connecting with the engine block, and a positioning injection mechanism that is sealed and rotated with the connecting mechanism. The connecting mechanism is provided with an engine oil passage The connected inner oil passage 5, and the communicating oil hole 6 connecting the inner oil passage 5 and the outside of the connecting mechanism, the positioning injection mechanism is provided with an oil injection hole 8 and a positioning mechanism for positioning with the engine block, and the positioning injection mechanism When sealing and rotating around the connecting mechanism, its oil injection hole 8 is always in communication with the inner oil passage 5 through the communication oil hole 6 .

Alternatively, as shown in the drawings of this embodiment, the connecting mechanism is a bolt 1, the inner oil passage 5 is arranged axially along the bolt 1, and the communicating oil hole 6 is arranged radially. In addition, bolts may not be used, for example, a metal connection block may be directly connected to the engine block by interference press-fitting. Preferably, the bolt 1 is T-shaped, and the upper end of the bolt 1 is provided with an inner hexagonal structure, and the lower end of the bolt 1 is an external thread for connecting with the engine block. The form of the upper end of the bolt 1 can be changed in various ways, as long as the lower end of the bolt 1 can be screwed into the corresponding threaded connection hole on the engine block smoothly, or can be disassembled.

The positioning injection mechanism includes a metal ring 2 and a connecting piece 3 that are fixedly connected. The oil injection hole 8 and the connecting piece 3 are provided with a positioning mechanism, and the positioning mechanism is a positioning pin 4 . Correspondingly, a positioning component, such as a positioning hole, is provided on the engine block to cooperate with the positioning pin 4 . Metal ring 2 is freely rotatably connected with bolt 1, and the direction of oil injection hole 8 can be adjusted freely and finally fixed and positioned by positioning pin 4, so as to ensure that the injection position of oil jet from oil injection hole 8 is always correct. An annular oil chamber 7 surrounding the bolt 1 is formed between the metal ring 2 and the bolt 1 , and the communicating oil hole 6 and the oil injection hole 8 communicate with the annular oil chamber 7 respectively. When the metal ring 2 seals and rotates around the bolt 1 , its oil injection hole 8 is always in communication with the inner oil passage 5 through the annular oil chamber 7 and the communicating oil hole 6 . During the working process, the engine oil enters the annular oil chamber 7 from the engine oil passage through the inner oil passage 5 and the connecting oil hole 6, and then sprays to the timing chain through the oil injection hole 8.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present utility model shall be included in this utility model. within the scope of protection of utility models.

Claims (7)

1. A kind of 1. engine timing chain lubrication assembly, it is characterised in that：Including the connection machine for being connected with engine cylinder-body Structure, and the positioning injection equipment being rotatablely connected is sealed with bindiny mechanism, it is provided with what is connected with engine oil channel in bindiny mechanism Internal oil channel, and connection internal oil channel and the connection oilhole outside bindiny mechanism, positioning injection equipment are provided with nozzle opening and use In the detent mechanism positioned with engine cylinder-body, and when positioning injection equipment around bindiny mechanism's sealing rotation, its nozzle opening begins Connected eventually by connecting oilhole with internal oil channel.
2. 2. engine timing chain lubrication assembly as claimed in claim 1, it is characterised in that：Bindiny mechanism is bolt, interior oil Road is axially arranged along bolt, and connection oilhole is radially arranged.
3. 3. engine timing chain lubrication assembly as claimed in claim 2, it is characterised in that：Bolt is T-shaped, in bolt upper end Provided with interior hexagonal structure, bolt lower end is the external screw thread for being connected with engine cylinder-body.
4. 4. engine timing chain lubrication assembly as claimed in claim 1, it is characterised in that：Positioning injection equipment includes fixing The becket and connection sheet of connection, metal loop seals are socketed in outside bindiny mechanism and are rotatablely connected with bindiny mechanism, on becket Provided with nozzle opening, connection sheet is provided with detent mechanism.
5. 5. engine timing chain lubrication assembly as claimed in claim 4, it is characterised in that：Between becket and bindiny mechanism The annular oil cavity around bindiny mechanism is formed, oilhole is connected and nozzle opening connects with annular oil cavity respectively.
6. 6. engine timing chain lubrication assembly as claimed in claim 4, it is characterised in that：Detent mechanism is alignment pin.
7. 7. engine timing chain lubrication assembly as claimed in claim 4, it is characterised in that：Connection sheet is fixed by socket in metal Outside ring.