CN205206986U - Right time shroud, engine and vehicle - Google Patents

Abstract

The embodiment of the utility model discloses right time shroud, engine and vehicle, wherein, the shroud included right time: go up the shroud before right time, for the plastics material, shroud under before right time, for the plastics material, with shroud before upward the shroud cooperation forms right time before right time, shroud after right time, for the plastics material, with the shroud is connected before right time, forms holding transmission system's in right time seal chamber. The utility model discloses right time shroud light in weight, the leakproofness is good, manufacturing process is simple, is favorable to arranging.

Description

Timing cover, engine and vehicle

technical field

The utility model belongs to the technical field of engines, in particular to a timing cover, an engine and a vehicle.

Background technique

The timing cover is one of the most critical parts of the engine. Its core function is to protect the normal operation of the timing system, prevent dust and foreign matter from entering the timing gear train, and reduce engine noise. The timing system is directly related to the phase relationship of the engine's four strokes of intake, compression, power, and exhaust. Once dust or foreign matter enters, it will seriously affect the performance of the engine and is a key factor affecting the engine's power and economy. Therefore, the design of the timing cover is particularly important.

With the rapid development of automobile technology, the engine is gradually developing towards higher power and better economy. The weight and noise of the whole machine have also attracted more and more attention. For each part of the engine, weight reduction and cost issues have also become key factors. The weight reduction of the timing cover, which is an external part of the engine, has gradually attracted attention.

Most of the existing engine timing covers are made of integral aluminum material, and the timing cover is directly matched with the cylinder block and the cylinder head. The sealing design is relatively complicated, and the overall weight is large, the sealing effect is poor, and the manufacturing process is complicated.

Utility model content

A technical problem to be solved by the embodiment of the utility model is to provide a timing cover, an engine and a vehicle, so that the timing cover is light in weight, good in sealing performance, simple in manufacturing process, and convenient for layout.

According to an aspect of an embodiment of the present invention, a timing cover is provided, including: a timing front upper cover; a timing front lower cover, which cooperates with the timing front upper cover to form a timing front cover Cover; the rear timing cover is connected with the timing front cover to form a sealed cavity for accommodating the timing transmission system.

According to the timing cover according to another embodiment of the present invention, the timing rear cover is connected with the timing front cover after being connected with the accessory bracket to form a sealed cavity for accommodating the timing transmission system.

According to the timing cover in another embodiment of the present invention, a slot or clip is provided on the edge of the timing front upper cover and the timing front lower cover; The edges are correspondingly provided with clips or slots, and the timing rear cover is specifically connected with the timing front upper cover and the timing front lower cover through the clips and the slots.

According to another embodiment of the timing cover of the present utility model, an installation hole is provided in the timing rear cover.

According to another embodiment of the timing cover of the present invention, a stepped structure is provided on the inner surface of the timing rear cover.

According to another embodiment of the timing cover of the present invention, reinforcing ribs are provided on the inner surface of the timing rear cover.

According to the timing cover of another embodiment of the present invention, three steps are arranged on the inner surface of the timing rear cover, grid ribs are arranged on the surface of the first step, and grid ribs are arranged on the surface of the second step. Diagonal ribs are arranged on the surface, and installation holes are arranged in the third step, and the installation holes are connected with the accessory bracket through bolts.

According to the timing cover in another embodiment of the present utility model, the inside surfaces of the timing front upper cover and the timing front lower cover are provided with a flocking layer, and the outer surface of the timing rear cover is Features soundproofing foam.

According to another aspect of the embodiment of the present utility model, an engine is provided, comprising: the above-mentioned timing cover.

According to still another aspect of an embodiment of the present utility model, a vehicle is provided, including: the above-mentioned engine.

Based on the timing cover, engine and vehicle provided by the above-mentioned embodiments of the utility model, the timing cover is made of plastic material, which is light in weight, low in noise and low in cost, and is conducive to layout; meanwhile, the timing cover adopts a combined structure to The timing transmission system is sealed inside, with good sealing performance and simple manufacturing process; among them, the combined structure adopts the connection method of clips and slots, which saves costs and is convenient for loading and unloading; in addition, by laying out fixed points in the timing rear cover , can increase the sealing effect, provide good help to reduce noise, vibration and harshness (NVH for short), and make the overall appearance more beautiful; by adding steps on the inner side of the timing rear cover The structure and ribs can increase the overall strength of the timing cover; by adding a flocking layer on the inside of the timing front upper cover and the timing front lower cover, and adding a sound-proof sponge on the inside of the timing rear cover, Engine noise can be reduced.

The technical solutions of the present utility model will be further described in detail through the drawings and embodiments below.

Description of drawings

The accompanying drawings, which constitute a part of this specification, illustrate embodiments of the invention and, together with the description, serve to explain principles of the invention.

With reference to accompanying drawing, according to following detailed description, can understand the utility model more clearly, wherein:

Fig. 1 is an exploded perspective view of an embodiment of the timing cover of the present invention.

Fig. 2 is a partially enlarged view of part A in Fig. 1 .

Fig. 3 is a schematic diagram of an inner surface of an embodiment of the timing rear cover of the present invention.

Fig. 4 is a schematic diagram of the utility model after the timing rear cover and the accessory bracket are fixed.

detailed description

Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangement of components, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.

At the same time, it should be understood that, for the convenience of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship.

The following description of at least one exemplary embodiment is merely illustrative in nature, and in no way serves as any limitation of the invention and its application or use.

Techniques, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques, methods and devices should be considered part of the description.

It should be noted that like numerals and letters denote like items in the following figures, therefore, once an item is defined in one figure, it does not require further discussion in subsequent figures.

Although some engines now use upper and lower split timing covers, most of them use plastic for the upper body and aluminum for the lower body. This requires two processes, resulting in an increase in cost. At present, most of the sealing of the timing cover adopts flange sealing, that is, a closed flange is formed on the timing cover, and the corresponding flange structure is added on the cylinder block and the cylinder head at the same time, and the timing is connected by many bolts. The cover is fixed on the cylinder block and the cylinder head, which will not only increase the processing steps of the cylinder block and the cylinder head, but also increase the assembly process of tightening the bolts, thereby increasing the cost and the risk of scrapping. With more and more parts driven by the timing system, the design of the timing cover is also complicated, and the NVH problem is often not solved, resulting in an increase in the noise of the whole machine.

Please refer to FIG. 1 , which is an exploded perspective view of an embodiment of the timing cover of the present invention. The timing cover of this embodiment includes a timing front upper cover 110 , a timing front lower cover 120 and a timing rear cover 130 . Timing front upper cover 110, timing front lower cover 120 and timing rear cover 130 all adopt plastics material, and timing front upper cover 110 cooperates with timing front lower cover 120 to form a timing front cover. The timing rear cover 130 is connected with the timing front cover to form a sealed cavity for accommodating the timing transmission system. In this embodiment, the timing cover is divided into three parts by adopting a combined structure, and all of them are made of plastic material, which is light in weight, simple in manufacturing process and low in cost. At the same time, by using the characteristics of the three-part structure of the timing cover, a cavity is formed inside the timing cover, and the timing transmission system is accommodated in the cavity. The sealing design is simple, the sealing performance is good, and the overall assembly and disassembly are convenient.

The timing rear cover 130 of this embodiment is connected with the timing front cover after being connected with the accessory bracket 140 to form a sealed cavity for accommodating the timing transmission system and sealing the timing transmission system inside.

Please refer to FIG. 2 , which is a partially enlarged view of part A in FIG. 1 . In this embodiment, a clip or clip is provided on the edges of the upper cover 110 before timing and the lower cover 120 before timing, and the corresponding clip or clip is provided on the edge of the rear cover 130 after timing. The cover 130 is connected with the timing front upper cover 110 and the timing front lower cover 120 through clips and slots. For example, a card slot 111 is provided on the edge of the upper cover 110 before timing and the lower cover 120 before timing, and a clip 131 is correspondingly provided on the edge of the rear cover 130 after timing. In this embodiment, the two parts are fastened together by the clip and the slot, which breaks the traditional bolt connection structure, saves the number of parts, greatly saves the cost, and is very convenient to assemble and disassemble. At the same time, it also reduces the weight of adding bolt fixing points on the cylinder block and cylinder head, which can greatly reduce the overall weight of the engine.

Please refer to FIG. 3 , which is a schematic view of the inner side surface of an embodiment of the timing rear cover of the present invention. In this embodiment, mounting holes 132 are provided in the timing rear cover 130, and these mounting holes 132 are connected with the cylinder body and the cylinder head as fixed points, because these mounting holes 132 are arranged in the timing rear cover 130 instead of The traditional flange edge is arranged around the parts of the timing transmission system that need to be sealed, and is connected with the cylinder block and the cylinder head through bolts, which is conducive to the overall sealing of the timing cover, and there is no need to set the overlay around the timing cover. Many flange fixing structures make the overall appearance more beautiful. At the same time, by setting the mounting hole 132 in the timing cover, the large plane structure can also be decomposed, which is very helpful to the NVH of the engine.

Please refer to Fig. 4 again, which is a schematic diagram of the utility model after the timing rear cover and the accessory bracket are fixed. In this embodiment, a stepped structure is provided on the inner surface of the timing rear cover 130, and reinforcing ribs are also provided on the inner surface of the timing rear cover 130. By arranging different reinforcing ribs in different stepped structures, the timing can be increased. When the overall strength of the cover. For example, three steps 133, 134, 135 are set on the inside surface of the timing back cover 130; wherein, the third step 135 is the highest surface, and the installation hole 132 is arranged in the third step 135, and the third step The two mounting holes 132 in 135 are connected with the accessory bracket 140 through bolts, and the third step 135 increases the strength of this part through the two bolts provided inside (138 in FIG. 4 is the accessory bracket 140 and the timing rear cover 130 The boundary of the second step 134 is 4mm lower than the third step 135, and the surface of the second step 134 is provided with a diagonal rib 137 with a height of 2mm to increase the strength of this part; the first step 133 is lower than the second step 133 The first step 134 is 12mm lower, and grid ribs 136 are arranged on the surface of the first step 133 to increase the strength of this part.

The inner surface of the front upper cover 110 of the timing and the lower cover 120 of the timing of the present embodiment is also provided with a flocking layer, and the outer surface of the rear cover 130 of the timing is provided with a soundproof sponge, which can reduce the noise of the engine. At the same time, the NVH of the whole machine is reduced.

In addition, this embodiment also provides an engine with the above timing cover, and a vehicle with the above engine.

Each embodiment in this specification is described in a progressive manner, each embodiment focuses on the difference from other embodiments, and the same or similar parts of each embodiment can be referred to each other.

The description of the present invention has been presented for purposes of illustration and description, but is not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and changes will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to better explain the principle and practical application of the invention, and to enable those of ordinary skill in the art to understand the invention and design various embodiments with various modifications suitable for particular purposes.

Claims (10)

1. a timing cover, is characterized in that, comprising:

Upper cover before timing;

The front lower cover cap of timing, coordinates with upper cover before described timing and forms timing front cover;

Timing rear cover, is connected with described timing front cover, forms the seal chamber of accommodating timing driving system.

2. timing cover according to claim 1, is characterized in that, described timing rear cover, after being connected with accessory mount, is connected with described timing front cover, forms the seal chamber of accommodating timing driving system.

3. timing cover according to claim 1, it is characterized in that, before described timing, the edge of upper cover and the front lower cover cap of described timing is provided with draw-in groove or clamp, correspondingly at the edge of described timing rear cover be provided with clamp or draw-in groove, before described timing rear cover and described timing, upper cover and the front lower cover cap of described timing are connected especially by clamp and draw-in groove.

4. the timing cover according to claim arbitrary in claims 1 to 3, is characterized in that, is provided with the mounting hole be connected with the cylinder body of motor and cylinder cap in described timing rear cover.

5. the timing cover according to claim arbitrary in claims 1 to 3, is characterized in that, is provided with hierarchic structure at the inner surface of described timing rear cover.

6. the timing cover according to claim arbitrary in claims 1 to 3, is characterized in that, is provided with stiffening rib at the inner surface of described timing rear cover.

7. timing cover according to claim 5, it is characterized in that, three grades of ladders are provided with at the inner surface of described timing rear cover, grid ribs is provided with on the surface of first order ladder, diagonal bar is provided with on the surface of second level ladder, in third level ladder, be provided with mounting hole, described mounting hole is connected with accessory mount by bolt.

8. timing cover according to claim 1, is characterized in that, before described timing, the inner surface of upper cover and the front lower cover cap of described timing is provided with cashmere-planted layer, and the outer surface of described timing rear cover is provided with sound-isolating sponge.

9. a motor, is characterized in that, comprising: the timing cover according to claim arbitrary in claim 1 to 8.

10. a vehicle, is characterized in that, comprising: motor according to claim 9.