Straight plate type shifting fork forge piece

Abstract

The utility model discloses a straight plate type shifting fork forge piece which comprises a body part. A counter bore part which forms a counter bore at one end of the body part; an open slot is formed in the other end, far away from the counter bore part, of the body part; the protruding part is connected to the body part and located between the counter bore part and the fork foot part, the geometric center of the protruding part deviates from the geometric center of the body part and is close to the fork foot part, and the protruding part, the fork foot part, the counter bore part and the body part are integrally forged and formed.

Description

Technical Field

[0001] The present application belongs to the technical field of automobile parts, and more specifically, relates to a straight plate type shift fork forging. Background Art

[0002] The clutch release fork is a key component in the automobile, mainly used to promote the clutch separation between the engine and the gearbox. The driving force of the clutch release fork in heavy vehicles is usually pneumatic or hydraulic, with a large degree of force and an alternating stress. The traditional manufacturing process of this type of fork usually adopts a casting molding method. Due to some casting defects inherent in the casting process itself, such as pores, shrinkage holes and other defects, the strength and durability of the fork are affected. In particular, the proportion of early damage in the clutch release fork of heavy vehicles is relatively high. Therefore, it is necessary to solve the above technical problems. Summary of the invention

[0003] The purpose of the embodiments of the present application is to provide a straight plate type shift fork forging to solve the technical problem of poor mechanical performance of the shift fork existing in the prior art.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted in this application is: to provide a straight plate type fork forging, including:

[0005] Body part;

[0006] a countersunk portion, forming a countersunk hole at one end of the main body portion;

[0007] A fork leg portion, having an open groove formed on the other end of the main body away from the counterbore portion;

[0008] The raised portion is connected to the main body and is located between the countersunk portion and the fork leg portion. The geometric center of the raised portion deviates from the geometric center of the main body and is close to the fork leg portion. The raised portion, the fork leg portion, the countersunk portion and the main body are forged as a whole.

[0009] Optionally, a frustum is provided on the main body portion at a side away from the countersunk portion, and the frustum is coaxially arranged with the countersunk portion.

[0010] Optionally, the straight plate type shift fork forging further includes a first edge guard portion;

[0011] The first edge protection portion surrounds the outside of the opening slot along the edge contour of the opening slot.

[0012] Optionally, the straight plate type shift fork forging further includes a second edge guard portion;

[0013] The second edge protection portion is connected to the front end of the first edge protection portion along the edge contour of the opening groove and is integrally formed with the first edge protection portion.

[0014] Optionally, the thickness of the second edge protecting portion is greater than the thickness of the first edge protecting portion.

[0015] Optionally, there is a smooth transition between the second edge protecting portion and the first edge protecting portion.

[0016] Optionally, the first edge protecting portion and the second edge protecting portion are arranged obliquely close to one side of the slot opening of the opening slot.

[0017] Optionally, a rib plate is provided between the raised portion and the main body portion.

[0018] Optionally, two protrusions are provided and spaced apart.

[0019] The beneficial effect of the straight plate fork forging provided by the present application is that: compared with the prior art, the protrusion, fork leg, countersunk portion and main body of the present application are integrally forged, which can eliminate the inherent defects of the casting or welding process and improve the mechanical properties and durability of the fork. At the same time, the integrally forged fork can better disperse the stress when subjected to force and reduce the possibility of cracks. In addition, the geometric center of the protrusion in the present application deviates from the geometric center of the main body and is close to the fork leg, which can make the distance from the fork leg to the protrusion smaller than the distance from the countersunk portion to the protrusion, thereby achieving a labor-saving technical effect, which is far superior to the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0021] Figure 1 The overall structure of the straight plate type fork forging provided in the embodiment of the present application is schematically shown Figure 1 ;

[0022] Figure 2 The overall structure of the straight plate type fork forging provided in the embodiment of the present application is schematically shown Figure 2 ;

[0023] Figure 3 A schematic diagram of the top view of the straight plate type shift fork forging provided in an embodiment of the present application;

[0024] Figure 4 For along Figure 3 Cross-sectional structure diagram along line AA.

[0025] Among them, the reference numerals in the figures are: 101, main body; 102, countersunk portion; 103, fork leg portion; 104, raised portion; 105, frustum; 106, first edge guard portion; 107, second edge guard portion; 108, rib plate; 131, open groove. Implementation

[0026] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0027] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0028] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0029] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0030] Please also read Figures 1 to 4, a straight plate shift fork forging provided in an embodiment of the present application is now described. The straight plate shift fork forging includes a main body 101, a countersunk portion 102, a fork leg portion 103 and a raised portion 104. The countersunk portion 102 forms a countersunk hole at one end of the main body 101. In this embodiment, the countersunk hole is used to install the drive rod of the hydraulic drive mechanism. The fork leg portion 103 forms an open groove 131 on the other end of the main body 101 away from the countersunk portion 102. The open groove 131 is used to shift the central speed change wheel. The raised portion 104 is connected to the main body 101 and is located between the countersunk portion 102 and the fork leg portion 103. In this embodiment, the center of the raised portion 104 is used to process the shaft hole to install the rotating shaft. The geometric center of the raised portion 104 deviates from the geometric center of the main body 101 and is close to the fork leg portion 103. The raised portion 104, the fork leg portion 103, the countersunk portion 102 and the main body 101 are forged as a whole.

[0031] According to the above structure provided in the present embodiment, the protrusion 104, the fork leg 103, the countersunk portion 102 and the main body 101 are integrally forged, which can eliminate the inherent defects of the casting or welding process and improve the mechanical properties and durability of the fork. At the same time, the integrally forged fork can better disperse the stress when subjected to force and reduce the possibility of cracks. In addition, the geometric center of the protrusion 104 in the present application deviates from the geometric center of the main body 101 and is close to the fork leg 103, so that the distance from the fork leg 103 to the protrusion 104 can be smaller than the distance from the countersunk portion 102 to the protrusion 104, thereby achieving a labor-saving technical effect; at the same time, the main body 101 adopts a straight plate structure, which simplifies the load-bearing components. On the one hand, it is easy to form during forging and improve the quality of the forging. On the other hand, it improves the stress condition and increases the service life of the fork, which is far superior to the prior art.

[0032] In another embodiment of the present application, please refer to Figures 1 to 4 The main body 101 is provided with a truncated platform 105 on the side away from the counterbore 102, and the truncated platform 105 is coaxially arranged with the counterbore 102. In this embodiment, by adopting the above structure, the truncated platform 105 can be used to increase the bottom wall thickness of the counterbore, thereby effectively improving the connection and disconnection strength of this part.

[0033] In another embodiment of the present application, please refer to Figures 1 to 4 The straight plate type shift fork forging also includes a first edge guard 106, which surrounds the outside of the opening groove 131 along the edge contour of the opening groove 131. In this embodiment, by providing the first edge guard 106, the target part can be effectively prevented from moving relative to the shift fork part, thereby improving the connection reliability between the shift fork part and the target part.

[0034] In another embodiment of the present application, please refer to Figures 1 to 4The straight plate type shift fork forging also includes a second edge guard 107; the second edge guard 107 is connected to the front end of the first edge guard 106 along the edge contour of the opening groove 131 and is integrally formed with the first edge guard 106. In this embodiment, by providing the second edge guard 107, the second edge guard 107 can be used to effectively improve the mechanical strength of the first edge guard 106, further ensuring the connection reliability between the shift fork and the target part. Further, in another embodiment of the present application, please refer to Figures 1 to 4 , the thickness of the second edge protection portion 107 is greater than the thickness of the first edge protection portion 106 .

[0035] In another embodiment of the present application, please refer to Figures 1 to 4 , there is a smooth transition between the second edge guard 107 and the first edge guard 106. In this embodiment, by adopting the above structure, the processing stress of the first edge guard 106 and the second edge guard 107 can be effectively reduced, and the formation of edges and corners on the straight plate forging can be avoided, which affects the work of other parts.

[0036] In another embodiment of the present application, please refer to Figures 1 to 4 The first edge guard 106 and the second edge guard 107 are arranged obliquely near the slot opening 131. According to the structure provided in this embodiment, the geometric centers of the first edge guard 106 and the second edge guard 107 can deviate toward the fork portion, thereby improving the mechanical strength of the fork portion.

[0037] In another embodiment of the present application, please refer to Figures 1 to 4 A rib plate 108 is provided between the protrusion 104 and the body 101. In this embodiment, by providing the rib plate 108, the connection strength between the protrusion 104 and the body 101 can be improved by using the rib plate 108, so that the straight plate type fork forging provided in this embodiment can be used stably for a long time.

[0038] In another embodiment of the present application, please refer to Figures 1 to 4 , two protrusions 104 are provided and spaced apart. According to the target structure provided in this embodiment, on the one hand, the connection stability between the protrusion 104 and the target structure can be improved; on the other hand, since the protrusion 104 in this embodiment is a symmetrical structure, the material can flow evenly and not deform too much during the forging process of the protrusion 104, thereby preventing the material from cracking or deforming.

[0039] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A straight plate fork forging, characterized in that: include: Ontology (101); A countersunk hole portion (102) is formed at one end of the main body portion (101); A fork leg portion (103) having an open groove (131) formed on the other end of the main body portion (101) away from the countersunk hole portion (102); A raised portion (104) is connected to the main body (101) and is located between the countersunk portion (102) and the fork leg portion (103); the geometric center of the raised portion (104) deviates from the geometric center of the main body (101) and is close to the fork leg portion (103); the raised portion (104), the fork leg portion (103), the countersunk portion (102) and the main body (101) are integrally forged.

2. The straight plate type shift fork forging according to claim 1, characterized in that: The main body (101) is provided with a truncated cone (105) on a side away from the countersunk hole portion (102); the truncated cone (105) is coaxially arranged with the countersunk hole portion (102).

3. The straight plate type shift fork forging according to claim 1, characterized in that: The straight plate type shift fork forging also includes a first edge guard portion (106); The first edge protection portion (106) surrounds the outside of the opening slot (131) along the edge contour of the opening slot (131).

4. The straight plate type shift fork forging according to claim 3, characterized in that: The straight plate type shift fork forging also includes a second edge guard portion (107); The second edge protection portion (107) is connected to the front end of the first edge protection portion (106) along the edge contour of the opening groove (131) and is integrally formed with the first edge protection portion (106).

5. The straight plate type shift fork forging according to claim 4, characterized in that: The thickness of the second edge protection portion (107) is greater than the thickness of the first edge protection portion (106).

6. The straight plate type shift fork forging according to claim 4, characterized in that: There is a smooth transition between the second edge protection portion (107) and the first edge protection portion (106).

7. The straight plate type shift fork forging according to claim 4, characterized in that: The first edge protection portion (106) and the second edge protection portion (107) are arranged obliquely close to one side of the slot opening of the opening slot (131).

8. The straight plate type shift fork forging according to claim 1, characterized in that: A rib plate (108) is provided between the raised portion (104) and the main body (101).

9. The straight plate type shift fork forging according to claim 1, characterized in that: Two protrusions (104) are provided and are spaced apart.

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