Differential mechanism shell structure of passenger car

Abstract

The utility model discloses a differential shell structure of a passenger car. The differential shell structure comprises a shell main body, a flange surface, a first balance material, a second balance material, a central cylinder, a groove, a reinforcing rib, a central hole, a chamfer, a reference point, a second through hole and a process patch, a flange face is arranged on the shell body, and a first balance material is arranged on the upper surface of one side of the flange face. Materials are added to the two sides of the flange face, the adverse effect caused by the fact that the diameter of the flange face is large, the feeding distance is long, and a solidification bottleneck is easily formed due to the deep groove is weakened, and therefore the gradient of the solidification sequence is established, a feeding channel is optimized, and the risk caused by shrinkage porosity is reduced; and the influence of dynamic balance gram weight can be adjusted according to the increase and decrease of the added material, the size and position of the process subsidy are adjusted, and a reference point is added, so that the dynamic balance reference is controlled by a blank surface, and not only is the shrinkage porosity ensured to meet the standard, but also the tolerance of dynamic balance after machining is met.

Description

TECHNICAL FIELD

[0001] The utility model relates to differential mechanism shell technical field, in particular to a passenger car differential mechanism shell structure. BACKGROUND

[0002] The differential mechanism shell is the shell of the differential mechanism, is usually connected with the transmission shaft, contains all moving parts such as planetary gear, half axle gear in the inside, the differential mechanism shell can protect the planetary gear, half axle gear and other parts in the inside from the damage of external environment, keeps the transmission axis of the differential mechanism and rear axle drive wheel unchanged, ensures the stable transmission of power, and the differential mechanism shell provides support and positioning for the planetary gear, half axle gear and other parts in the inside through its structure, ensures that they can correctly mesh and transmit power.

[0003] The existing differential mechanism shell has the following defects: one, the flange face diameter is relatively large, increases the distance of feeding channel, is far away from the area of the riser, cannot effectively obtain feeding, increases the risk of shrinkage, there is a groove between the center column and the flange face, feeding channel can be easily caused to appear bottleneck, and the part exists pin hole, and machining asymmetry influences dynamic balance, two, the structure is excessively uneven in height and thickness, the middle is relatively thin, the riser cannot feed the center column below, and the riser cannot be placed to feed at the place, therefore, it is necessary to note the position to carry out process subsidy to guarantee shrinkage, but also therefore lead to the difficulty of machining reference positioning consistency, the unreasonable product structure above, is difficult to form according to solidification sequence, leads to the fact that the casting is easy to form isolated liquid and cannot be fed during solidification shrinkage, therefore, to guarantee the process stability, process subsidy is increased, and as a result, the proportion of product quality that cannot meet the requirements due to dynamic balance is relatively large after product mass production. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at providing a passenger car differential mechanism shell structure to solve the problems in the above background art.

[0005] In order to solve the above technical problems, the utility model provides the following technical scheme: a passenger car differential mechanism shell structure, including shell main part, the shell main part is provided with flange face, the upper surface of one side of flange face is provided with first balance material, the upper surface of the other side of flange face is provided with second balance material, and one end of shell main part is provided with reference point.

[0006] As a further technical scheme of the utility model, the shell main part is provided with second through hole at the position corresponding to reference point, and the inner wall of second through hole is provided with process subsidy.

[0007] As a further technical scheme of the utility model, the upper surface of flange face is provided with groove.

[0008] As a further technical scheme of the utility model, the upper surface of the flange face is provided with a center column, and the upper surface of the center column is provided with a first through hole.

[0009] As a further technical scheme of the utility model, the outer wall of the center column is provided with a reinforcing rib, and the reinforcing rib is arranged on the upper surface of the flange face.

[0010] As a further technical scheme of the utility model, a center hole is arranged on the outer wall of one side of the shell body.

[0011] As a further technical scheme of the utility model, chamfers are arranged on the outer walls on both sides of the center hole.

[0012] Compared with the prior art, the utility model has the beneficial effects that: the utility model weakens the adverse effects caused by the large diameter of the flange face and the deep groove which is easy to form a solidification bottleneck, establishes the gradient of the solidification sequence, optimizes the feeding channel, reduces the risk of shrinkage, and can adjust the influence of dynamic balance weight according to the increase or decrease of the material, adjust the size and position of the process subsidies, and increase the reference point, so that the dynamic balance reference is controlled by the blank surface, which not only ensures that the shrinkage meets the standard and meets the tolerance of dynamic balance after machining, but also improves the quality and shrinkage of the dynamic balance of machining, reduces the product failure rate, improves the casting stability, improves the production efficiency, and reduces the cost. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creating any creative labor.

[0014] Figure 1 It is the overall front view structure schematic diagram of the utility model;

[0015] Figure 2 It is the overall front view structure schematic diagram of the utility model;

[0016] Figure 3 It is the overall front view structure schematic diagram of the utility model.

[0017] In the drawing: 1, shell body; 2, flange face; 3, first balance material; 4, second balance material; 5, center column; 6, first through hole; 7, groove; 8, reinforcing rib; 9, center hole; 10, chamfer; 11, reference point; 12, second through hole; 13, process subsidy. DETAILED DESCRIPTION

[0018] In order to make the technical scheme and advantages of the utility model embodiments clearer, the technical scheme in the utility model embodiments will be described clearly and completely below in conjunction with the drawings in the utility model embodiments. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the utility model.

[0019] Please refer to the drawings Figure 1 - the drawings Figure 3 The utility model provides an embodiment: a passenger car differential mechanism shell structure, including shell main part 1, be provided with flange face 2 on shell main part 1, the upper surface of one side of flange face 2 is provided with first balance material 3, the upper surface of the other side of flange face 2 is provided with second balance material 4, and one end of shell main part 1 is provided with reference point 11;Second through hole 12 is set up at the position corresponding reference point 11 on shell main part 1, and process subsidy 13 is set up on the inner wall of second through hole 12;The upper surface of flange face 2 is provided with recess 7;The upper surface of flange face 2 is provided with center column 5, and first through hole 6 is set up on the upper surface of center column 5, and center column 5 and first through hole 6 are used to support and fix internal components;Strengthening rib 8 is set up on the outer wall of center column 5, and strengthening rib 8 is set up on the upper surface of flange face 2, and strengthening rib 8 is used to strengthen the connecting strength of flange face 2 and center column 5;Center hole 9 is set up on the outer wall of one side of shell main part 1;Be provided with chamfer 10 on the outer wall of both sides of center hole 9, and center hole 9 and chamfer 10 are used to install the control mechanism or connecting pipeline of differential lock, to realize the function of differential lock.

[0020] Working principle: the utility model is through setting up first balance material 3 and second balance material 4 on the both sides position on flange face 2, weakens the adverse effect brought because flange face 2 diameter is big and because recess 7 is deep and is easy to form solidification bottleneck, to establish the gradient of solidification sequence, optimize the shrinkage channel, reduce the risk of shrinkage, and can be adjusted according to the adjustment of first balance material 3 and second balance material 4 increased here, and adjust the influence of dynamic balance, and increase reference point 11 on shell main part 1 and increase process subsidy 13 in second through hole 12, and adjust the size of process subsidy 13, so that dynamic balance reference is controlled by blank surface, which guarantees that shrinkage meets the standard and meets the tolerance of dynamic balance after machining;Center column 5 and first through hole 6 are used to support and fix internal components, strengthening rib 8 is used to strengthen the connecting strength of flange face 2 and center column 5, and center hole 9 and chamfer 10 are used to install the control mechanism or connecting pipeline of differential lock, to realize the function of differential lock.

[0021] In the description of the utility model, it is necessary to explain that, unless there is definite stipulation and limitation, the term "mount", "link", "connect" should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through intermediate medium, can be two elements inside the communication.For the ordinary skilled in the art, the above-mentioned terms can be understood in the specific meaning of the utility model according to the specific circumstances.

[0022] The device embodiments described above are only schematic, wherein the units described as separate components can or can not be physically separate, and the components displayed as units can or can not be physical units, that is, they can be located in one place, or distributed on multiple network units.

[0023] Finally, it should be noted that: the above examples are only used to illustrate the technical solutions of the utility model, and not to limit them;Although the utility model has been described in detail with reference to the foregoing examples, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing examples, or make equivalent replacement for part of the technical features;And these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the utility model.

Claims

1. A passenger vehicle differential housing structure comprising a housing main body (1), characterized by: The flange face (2) is provided on the shell body (1), the upper surface of one side of the flange face (2) is provided with the first balancing material (3), the upper surface of the other side of the flange face (2) is provided with the second balancing material (4), and one end of the shell body (1) is provided with the reference point (11).

2. A passenger vehicle differential carrier structure as claimed in claim 1, wherein: The second through hole (12) is formed on the shell body (1) at the position corresponding to the reference point (11), and the process subsidy (13) is arranged on the inner wall of the second through hole (12).

3. A passenger vehicle differential carrier structure as claimed in claim 1, wherein: The upper surface of the flange face (2) is provided with the groove (7).

4. The passenger vehicle differential carrier structure as set forth in claim 1, characterized in that: The upper surface of the flange face (2) is provided with the center column (5), and the upper surface of the center column (5) is provided with the first through hole (6).

5. A passenger vehicle differential carrier structure as claimed in claim 4, wherein: The outer wall of the center column (5) is provided with the reinforcing rib (8), and the reinforcing rib (8) is arranged on the upper surface of the flange face (2).

6. A passenger vehicle differential carrier structure as claimed in claim 2, wherein: The center hole (9) is formed on the outer wall of one side of the shell body (1).

7. A passenger vehicle differential carrier structure as claimed in claim 6, wherein: The chamfer (10) is arranged on the outer wall of the center hole (9).

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