Differential actuator connection structure

Abstract

The utility model belongs to the field of automobile transmission technology, especially relates to differential actuator connecting structure, including differential assembly, slide lock and push plate, differential assembly includes casing, half axle gear and compression spring, the casing has one end surface, and the end surface is equipped with a plurality of through grooves and an axial extension installation site for installing electromagnetic driver, half axle gear and slide lock are located in the casing, and compression spring is located between half axle gear and slide lock, slide lock is equipped with the connecting boss of the shell of the corresponding through groove from the extension, and the outer circumferential side of each connecting boss is equipped with the open slot, the open slot has the groove top, the end of connecting boss is equipped with the plug -in hole, the plug -in hole is through to the groove top, the push plate is sleeved in the installation site for connecting electromagnetic driver, and the side of push plate is equipped with the bayonet catch of inserting in the corresponding plug -in hole, and the side of bayonet catch is equipped with the limit step for limiting in the groove top, and the compression spring is used for extruding push lock, makes the groove top stretch out the end surface, and forms the avoidance groove with the end surface.

Description

Technical Field

[0001] This utility model belongs to the field of automotive transmission technology, and in particular relates to a differential actuator connection structure. Background Technology

[0002] As a device inside a car that transmits and distributes power, the differential can automatically adjust the speed of the inner and outer wheels when turning to ensure driving safety. However, when encountering more severe road conditions, it often slips due to insufficient traction. To solve this problem, existing differentials usually have an automatic locking mechanism that can play a limited-slip role. This locking mechanism is controlled by a switch and provides a certain thrust to achieve engagement and locking or disengagement.

[0003] For example, Chinese invention patent application CN115711281A discloses a differential assembly with disconnection and locking functions, including a differential housing. The differential housing includes a housing drive gear, and inside the differential housing are planetary gears and left and right half-shaft gears that mesh with the planetary gears. The planetary gears are mounted on a planetary gear carrier via planetary gear shafts. The differential assembly also includes a transmission clutch assembly located on the right side of the differential housing and a differential clutch assembly located on the left side of the differential housing. The transmission clutch assembly includes a transmission electromagnetic actuator, a transmission return spring, and a transmission clutch ring. The transmission clutch ring is circumferentially fixed to the differential housing and can move axially relative to the differential housing. The transmission electromagnetic actuator is energized. The drive clutch ring moves axially toward the planetary gear carrier and eventually connects with it to form a circumferentially fixed connection. When the drive electromagnetic actuator is de-energized, the drive clutch ring moves axially away from the planetary gear carrier and eventually disconnects from it. The differential clutch assembly includes a differential electromagnetic actuator, a differential return spring, and a differential clutch ring. The differential clutch ring is circumferentially fixed to the differential housing and can move axially relative to it. When the differential electromagnetic actuator is energized, it drives the differential clutch ring to move axially toward the left half-shaft gear and eventually connects with it to form a circumferentially fixed connection. When the differential electromagnetic actuator is de-energized, it drives the differential clutch ring to move axially away from the left half-shaft gear and eventually disconnects from it. A chuck with its opening facing the planetary gear carrier is also fixed to the drive clutch ring. The chuck is located outside the differential housing. The drive return spring is confined between the chuck and the differential housing, located outside the differential housing.

[0004] The patent document discloses a technical solution where the chuck's extended jaws engage with the protruding boss of the drive clutch ring, thus allowing the drive clutch ring to move under the action of an electromagnetic actuator. Because the drive clutch ring is located inside the differential, it is inconvenient, or even impossible, to remove the chuck when it needs to be removed.

[0005] For example, Chinese invention patent application CN116928313A discloses a self-locking differential including a differential housing and a differential end cover fixed to one side of the differential housing. A differential gear mechanism is provided between the differential housing and the differential end cover. The differential gear mechanism includes a left half-shaft gear located on one side of the differential end cover, a right half-shaft gear located on one side of the differential housing, and a planetary gear mechanism located between the left half-shaft gear and the right half-shaft gear. The planetary gear mechanism includes an integrally formed cross shaft, a sleeve fixed to the axis of the cross shaft, and planetary gears fixed to the cross shaft. The differential housing has a planetary gear meshing between the left and right half-shaft gears. A shaft hole is provided between the differential housing and the differential end cover. A cross shaft passes through the shaft hole. A first positioning cylinder is fixed on one side of the left half-shaft gear and inserted into a sleeve. A second positioning cylinder is fixed on one side of the right half-shaft gear and passes through the differential housing. A drive mechanism is provided on one side of the differential housing, and a push plate is provided on one side of the drive mechanism. The drive mechanism is used to drive the push plate to control the right half-shaft gear to move away from the planetary gears so that the right half-shaft gear disengages from the planetary gears. A slip lock is provided between the right half-shaft gear and the differential housing. Several insert plates are fixed on the push plate, and several bearing grooves corresponding to the insert plates are provided on the part of the protrusion that extends out of the bearing hole. The insert plates are snapped into the bearing grooves. Specifically, by setting several insert plates and cooperating with the bearing grooves, the relative position of the push plate and the slide lock can remain unchanged. That is, when the differential performs the self-locking function, the push plate ensures that the slide lock does not move, and the push plate drives the right half-shaft gear to move towards the slide lock, so that the rotation of the slide lock can drive the right half-shaft gear to rotate, so that the two drive shafts rotate at the same speed.

[0006] The technical solutions disclosed in the aforementioned patent documents all involve inserting the push plate into the receiving groove of the slide lock, without limiting the insertion plate. Therefore, there is a problem that the insertion plate may come out of the receiving groove, causing the push plate to detach from the slide lock. Utility Model Content

[0007] The purpose of this utility model is to provide a differential actuator connection structure, which solves the problem that the connection between the differential lock and the push plate in the prior art cannot be properly disassembled or that the push plate is detached from the lock.

[0008] To achieve the above objectives, this utility model provides a differential actuator connection structure, including a differential assembly, a slide lock, and a push plate. The differential assembly includes a housing, a half-shaft gear, and a compression spring. The housing has an end face with multiple through slots and an axially extending mounting position for mounting an electromagnetic actuator. The half-shaft gear and the slide lock are located within the housing, and the compression spring is located between the half-shaft gear and the slide lock. The slide lock has a connecting boss extending from the housing through the corresponding through slot. Each connecting boss has an opening slot on its outer periphery with a top. The end of the connecting boss has a insertion hole extending through to the top of the slot. The push plate is fitted onto the mounting position for connecting the electromagnetic actuator. One side of the push plate has a locking pin that inserts into the corresponding insertion hole, and one side of the locking pin has a limiting step for limiting the top of the slot. The compression spring pushes the slide lock, causing the top of the slot to extend beyond the end face and form a clearance groove with the end face.

[0009] Furthermore, the push plate and the locking pin are integrally injection molded.

[0010] Furthermore, the cross-section of the locking pin is semi-circular, and the limiting step is located on the arc surface of the locking pin.

[0011] Furthermore, the opening groove also has a groove bottom and a side wall, the insertion hole extends through the groove bottom and forms a semi-circular groove on the side wall.

[0012] Furthermore, the push plate is provided with an oil hole extending to the end of the locking pin.

[0013] Furthermore, the push plate has multiple protrusions on one side, the locking pin is formed on the protrusions, and the protrusions are supported on the corresponding connecting boss, so that a support gap is formed between the push plate and the connecting boss.

[0014] The differential actuator connection structure provided in this embodiment of the present invention has at least the following technical effects:

[0015] 1. The sliding lock is installed inside the housing, and the sliding lock has a connecting boss extending from the corresponding through slot. Each connecting boss has an opening slot on its outer periphery, and the opening slot has a top. The end of the connecting boss has a plug hole that extends to the top of the slot. One side of the push plate has a locking pin that inserts into the corresponding plug hole. Since one side of the locking pin has a limiting step, it can be limited to the top of the slot by the limiting step, so that the push plate can be locked with the sliding lock by the locking pin, thus avoiding the problem of the push plate and the sliding lock separating.

[0016] 2. When the push plate needs to be removed, the compression spring causes the connecting boss to extend out of the through slot, and the top of the slot fully extends out of the end face to form a clearance slot. Therefore, a thin plate can be inserted into the clearance slot to push the locking pin, causing the locking pin to deform and the limiting step to disengage from the top of the slot. This allows each locking pin to disengage from the top of the slot, so that the push plate can be smoothly removed from the connecting boss without causing damage to the push plate or causing it to break and fall into the differential housing. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A structural diagram of the differential actuator connection structure provided in an embodiment of this utility model.

[0019] Figure 2 A front view of the differential actuator connection structure provided in an embodiment of this utility model.

[0020] Figure 3 This is a cross-sectional view of the differential actuator connection structure provided in an embodiment of the present utility model.

[0021] Figure 4 This is a diagram showing the connection structure between the push plate and the slide lock in the differential actuator connection structure provided in this embodiment of the utility model.

[0022] Figure 5 A cross-sectional view of the connection structure between the push plate and the slide lock of the differential actuator connection structure provided in this embodiment of the utility model.

[0023] Figure 6 A structural diagram of the slide lock for the differential actuator connection structure provided in this embodiment of the utility model.

[0024] Figure 7 A structural diagram of the push plate of the differential actuator connection structure provided in this embodiment of the utility model.

[0025] Figure 8 A structural diagram of the housing of the differential actuator connection structure provided in an embodiment of this utility model. Detailed Implementation

[0026] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the embodiments of this utility model, and should not be construed as limiting the utility model.

[0027] In the description of the embodiments of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0028] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0029] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0030] In one embodiment of the differential actuator connection structure of this utility model, please refer to... Figures 1 to 8The differential actuator connection structure includes a differential assembly 100, a slip lock 200, and a push plate 300. The differential assembly 100 includes a housing 110, a half-shaft gear 120, and a compression spring 130. The housing 110 has an end face 111 with multiple through slots 112 and an axially extending mounting position for mounting an electromagnetic actuator (not shown in the attached figure). The half-shaft gear 120 and the slip lock 200 are located within the housing 110, and the compression spring 130 is located between the half-shaft gear 120 and the slip lock 200. The slide lock 200 is provided with a connecting boss 210 extending from the housing 110 through the corresponding through slot 112. Each connecting boss 210 has an opening slot 211 on its outer periphery, and the opening slot 211 has a slot top 212. The end of the connecting boss 210 is provided with a plug hole 213, which extends to the slot top 212. The push plate 300 is fitted into the mounting position for connecting the electromagnetic actuator. One side of the push plate 300 is provided with a locking pin 310 that inserts into the corresponding plug hole 213. One side of the locking pin 310 is provided with a limiting step 311 for limiting it to the slot top 212. The compression spring 130 is used to push the slide lock 200 so that the slot top 212 extends out of the end face and forms a clearance groove with the end face 111.

[0031] In this embodiment, the differential actuator has a slide lock 200 housed within the housing 110. The slide lock 200 has a connecting boss 210 extending from the corresponding through slot 112. Each connecting boss 210 has an opening slot 211 on its outer periphery, with a slot top 212. The end of the connecting boss 210 has a insertion hole 213 extending to the slot top 212. One side of the push plate 300 has a locking pin 310 that inserts into the corresponding insertion hole 213. Since one side of the locking pin 310 has a limiting step 311, it can be limited to the slot top 212 by the limiting step 311, so that the push plate 300 is engaged with the slide lock 200 by the locking pin 310, thus avoiding the problem of the push plate 300 and the slide lock 200 disengaging. When the push plate 300 needs to be removed, the connecting boss 210 extends out of the through groove 112 under the action of the compression spring 130, and the top 212 of the opening groove 211 fully extends out of the end face 111 and forms a clearance groove. Therefore, a thin sheet can be inserted into the clearance groove to push the locking pin 310, causing the locking pin 310 to deform and the limiting step 311 to disengage from the top 212 of the groove. In this way, each locking pin 310 can be disengaged from the top 212 of the groove, so that the push plate 300 can be smoothly removed from the connecting boss 210 without causing damage to the push plate 300 or breaking it and falling into the differential housing 110.

[0032] Furthermore, the push plate 300 and the locking pin 310 are integrally injection molded. This gives the locking pin 310 good strength, making it less prone to breakage, and also provides a certain degree of elasticity, allowing for easy insertion into the insertion hole 213. Additionally, the push plate 300 can be made of engineering plastic, thus serving as a magnetic shield to prevent magnetization.

[0033] Furthermore, refer to Figure 7 The locking pin 310 has a semi-circular cross-section, and the limiting step 311 is provided on the arc surface of the locking pin 310. Therefore, the locking pin 310 can deform within the insertion hole 213. When the locking pin 310 is pressed with a tool such as a thin sheet, the locking pin 310 can be elastically deformed.

[0034] Furthermore, refer to Figures 4 to 6 The opening groove 211 also has a groove bottom 214 and a side wall 215. The insertion hole 213 extends through the groove bottom 214 and forms a semi-circular groove 216 on the side wall 215. The semi-circular groove 216 can limit the locking pin 310 and also allow the locking pin 310 to deform elastically.

[0035] Furthermore, refer to Figure 7 The push plate 300 is provided with an oil hole 301 that extends to the end of the locking pin to facilitate the entry of differential oil.

[0036] For further details, please refer to... Figure 2 , Figure 5 and Figure 7 The push plate 300 has multiple protrusions 302 on one side, and a locking pin 310 is formed on the protrusion 302. The protrusion 302 is supported on the corresponding connecting boss 210, so that a supporting gap 303 is formed between the push plate 300 and the connecting boss 210. In this embodiment, when the push plate 300 is removed from the connecting boss 210, when the limiting step 311 of the locking pin 310 is disengaged from the top of the groove 212 using a thin sheet, a supporting object can be inserted into the supporting gap 303 to make the push plate 300 tilt slightly upward, so as to prevent the limiting step 311 of the locking pin 310 from engaging with the top of the groove 212 again, thereby facilitating the removal of the push plate 300.

[0037] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A differential actuator connection structure, comprising a differential assembly, a slide lock, and a push plate; the differential assembly comprising a housing, a half-shaft gear, and a compression spring; the housing having an end face, the end face having a plurality of through slots, and an axially extending mounting position for mounting an electromagnetic actuator; the half-shaft gear and the slide lock being disposed within the housing, and the compression spring being disposed between the half-shaft gear and the slide lock; characterized in that, The slide lock has a connecting boss extending from the housing through the corresponding through slot. Each connecting boss has an opening slot on its outer periphery with a top. The end of the connecting boss has a plug hole extending to the top of the slot. The push plate is fitted onto the mounting position for connecting the electromagnetic driver. One side of the push plate has a locking pin that inserts into the corresponding plug hole. One side of the locking pin has a limiting step for limiting the top of the slot. The compression spring is used to push the slide lock so that the top of the slot extends out of the end face and forms a clearance groove with the end face.

2. The differential actuator connection structure according to claim 1, characterized in that: The push plate and the locking pin are integrally injection molded.

3. The differential actuator connection structure according to claim 1, characterized in that: The cross-section of the locking pin is semi-circular, and the limiting step is located on the arc surface of the locking pin.

4. The differential actuator connection structure according to claim 3, characterized in that: The opening groove also has a groove bottom and a side wall, and the insertion hole extends through the groove bottom and forms a semi-circular groove on the side wall.

5. The differential actuator connection structure according to claim 4, characterized in that: The push plate is provided with an oil hole that extends to the end of the locking pin.

6. The differential actuator connection structure according to any one of claims 1 to 5, characterized in that: The push plate has multiple protrusions on one side, and the locking pin is formed on the protrusion. The protrusion is supported on the corresponding connecting boss, so that a support gap is formed between the push plate and the connecting boss.

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