Shifting fork control mechanism

Abstract

The utility model discloses a shifting fork control mechanism, which relates to the field of transmissions, and comprises a shifting fork shaft, gear shifting blocks are uniformly arranged on the outer wall of the shifting fork shaft, the angles of the gear shifting blocks are staggered, locking rings are uniformly arranged on the outer wall of the shifting fork shaft, and the locking rings are arranged on the outer wall of the shifting fork shaft. Through holes are evenly formed in the inner wall of the locking ring and the outer wall of the shifting fork shaft, and the gear engaging shifting blocks are located in inner cavities of the through holes. According to the scheme, the shifting fork shaft, the gear engaging shifting blocks, the locking ring and other devices are arranged to be matched, and the device can conveniently and independently drive different gear shifting forks to engage gears through the shifting fork shaft; the structure of the gear shifting mechanism is simplified, and the production cost is reduced; the gear shifting block, the shifting fork shaft, the gear engaging shifting block and the like are matched, so that the device can conveniently control and adjust the shifting fork shaft, gear engaging operation is facilitated, and gear engaging convenience is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of transmissions, in particular to a shift fork control mechanism. Background Art

[0002] The shift fork shift mechanism is a common transmission shift mechanism, which usually includes a shift fork and a shift fork shaft. The shift fork is used to cooperate with the shift engagement parts such as the synchronizer in the transmission and drive the synchronizer to move back and forth axially to complete the shifting action. In order to independently control the actions of multiple shift forks, it is necessary to set multiple shift shafts in a one-to-one correspondence. The existing structure will undoubtedly greatly increase the complexity of the transmission shift mechanism, which is not conducive to the miniaturization of multi-speed transmissions and increases the production cost of the transmission assembly. For this reason, we propose a shift fork control mechanism. Utility Model Content

[0003] In view of the above situation, in order to overcome the defects of the existing technology, the utility model provides a shift fork control mechanism, which effectively solves the problem that the existing structure will undoubtedly greatly increase the complexity of the transmission shift mechanism, is not conducive to the miniaturization of the multi-speed transmission, and increases the production cost of the transmission assembly.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a shift fork control mechanism, comprising a shift fork shaft, the outer wall of the shift fork shaft is evenly provided with shift blocks, the angles of the shift blocks are staggered, the outer wall of the shift fork shaft is evenly provided with locking rings, the inner wall of the locking ring is evenly provided with a through-opening on the outer wall of the shift fork shaft, the shift blocks are located in the inner cavity of the through-opening, the outer wall of the shift fork shaft is evenly provided with a shift fork, the outer wall of the shift fork is provided with a baffle plate, the side wall of the baffle plate close to the shift fork shaft is provided with a shift groove, and the locking ring is located in the inner cavity of the shift groove.

[0005] Preferably, a shift head is provided on the outer wall of the shift fork shaft, the shift head is located at the end of the shift fork shaft, and the shift block is located in the middle of the shift fork shaft.

[0006] Preferably, an annular guide frame is provided on the outer wall of the locking ring, and the retaining groove plate is located in the inner cavity of the annular guide frame.

[0007] Preferably, the annular guide frame is fixed in the transmission in the axial direction of the shift fork shaft, has no degree of freedom, and can only rotate around the shift fork shaft under the action of the shift block.

[0008] Preferably, in the neutral state, the shift block is not aligned with any of the shift slots, and in the gear state, the shift block is aligned with one of the shift slots.

[0009] Compared with the prior art, the beneficial effects of the present invention are:

[0010] 1. The shift fork control mechanism, by arranging a shift fork shaft, a shift block, a locking ring and other devices in coordination, can facilitate the device to independently drive different shift forks to engage gears through the shift fork shaft, thereby simplifying the structure of the shift mechanism and reducing production costs;

[0011] 2. The shift fork control mechanism, by arranging the shift head, the shift fork shaft and the shift block and other devices in coordination, can make the device easy to control and adjust the shift fork shaft, facilitate the gear shifting operation, and help improve the convenience of gear shifting;

[0012] 3. The shift fork control mechanism, by arranging an annular guide frame, a retaining groove plate and a shift block and other devices in combination, can make it easy for the device to limit and lock the shift fork, thereby preventing the shift fork from deflecting and preventing the gear position from changing. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention.

[0014] In the attached figure:

[0015] Figure 1 This is a schematic diagram of the structure of the shift fork control mechanism of the utility model;

[0016] Figure 2 For this utility model Figure 2 A magnified view of part A in FIG;

[0017] Figure 3 This is a schematic cross-sectional view of the shift block of the utility model;

[0018] In the figure: 100, shift fork shaft; 101, shift block; 102, locking ring; 103, shift fork; 104, retaining plate; 105, shift head; 106, annular guide frame. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0020] Depend on Figure 1 、 Figure 2 and Figure 3The utility model provides a shift fork control mechanism, the outer wall of the shift fork shaft 100 is evenly fixedly connected with a shift block 101, which is convenient for driving the retaining groove plate 104 to move, thereby completing the gear shifting, and the angles of the shift block 101 are staggered, and the staggered arrangement can control the gear position individually, and the outer wall of the shift fork shaft 100 is evenly connected with a locking ring 102 for rotating uniformly, and the retaining groove plate 104 is convenient for limiting the position of the locking ring 102. The inner wall of the locking ring 102 and the outer wall of the shift fork shaft 100 are evenly provided with through holes, and the shift block 101 is located at The inner cavity of the through-port and the outer wall of the shift fork shaft 100 are evenly slidably connected with the shift fork 103, which facilitates gear changes. The outer wall of the shift fork 103 is fixedly connected with a baffle plate 104, which facilitates the movement of the shift fork 103. The baffle plate 104 is close to the side wall of the shift fork shaft 100 and is provided with a shift groove, and the locking ring 102 is located in the inner cavity of the shift groove; in the neutral state, the shift block 101 is not aligned with any shift groove, and in the gear state, the shift block 101 is aligned with one of the shift grooves.

[0021] In this embodiment: by rotating the shift fork shaft 100, the shift block 101 is driven to rotate so that the shift block 101 corresponds to one of the shift slots, and the gear selection work is completed. At this time, the shift fork shaft 100 is pushed to make axial movement to the left or right, and the shift block 101 is driven to move by the shift fork shaft 101, and the gear shift block 101 drives the baffle plate 104 corresponding to the selected shift slot to move left or right, and the shift fork 103 is driven to move by the baffle plate 104 to complete the gear shifting action. During the gear shifting process, the remaining unselected shift slots will be stuck by the locking ring 102 and cannot move left or right, forming a lock. Multiple groups of gears can be engaged through the shift fork shaft 100, which can make it easy for the device to independently drive different shift forks 103 to engage gears through the shift fork shaft 100, simplifying the structure of the shifting mechanism and reducing production costs.

[0022] The outer wall of the shift fork shaft 100 is fixedly connected with a shift head 105 , which facilitates the movement of the shift fork shaft 100 . The shift head 105 is located at the end of the shift fork shaft 100 , and the shift block 101 is located in the middle of the shift fork shaft 100 .

[0023] In this embodiment: when the shift head 105 is operated to rotate, the shift fork shaft 100 is driven to rotate axially, and the shift block 101 is driven to rotate through the shift fork shaft 101, and the locking ring 102 is driven to rotate around the shift fork shaft 100 through the shift block 101. After rotating to the appropriate gear position, the shift fork shaft 100 is driven to move left or right by pushing the shift head 105, so that the device can easily control and adjust the shift fork shaft 100, facilitate the gear shifting operation, and help improve the convenience of gear shifting.

[0024] An annular guide frame 106 is provided on the outer wall of the locking ring 102, and the retaining groove plate 104 is located in the inner cavity of the annular guide frame 106; the annular guide frame 106 is fixed in the axial direction of the fork shaft 100 in the transmission, has no degree of freedom, and can only rotate around the fork shaft 100 under the action of the gear shift block 101.

[0025] In this embodiment: the transmission is used to facilitate the limiting of the annular guide frame 106, the annular guide frame 106 is used to facilitate the locking of the retaining groove plate 104, and the retaining groove plate 104 is used to facilitate the locking and limiting of the shift fork 103 to avoid deviation affecting the gear position. The device can facilitate the limiting and locking of the shift fork 103 to avoid deviation of the shift fork 103 and prevent the gear position from changing.

Claims

1. A shift fork control mechanism, comprising a shift fork shaft (100), characterized in that: The outer wall of the shift fork shaft (100) is evenly provided with a shift block (101), and the angles of the shift block (101) are staggered. The outer wall of the shift fork shaft (100) is evenly provided with a locking ring (102), and the inner wall of the locking ring (102) is evenly provided with a through-hole on the outer wall of the shift fork shaft (100). The shift block (101) is located in the inner cavity of the through-hole. The outer wall of the shift fork shaft (100) is evenly provided with a shift fork (103), and the outer wall of the shift fork (103) is provided with a retaining groove plate (104). The retaining groove plate (104) is provided with a shifting groove on the side wall close to the shift fork shaft (100), and the locking ring (102) is located in the inner cavity of the shifting groove.

2. The shift fork control mechanism according to claim 1, characterized in that: The outer wall of the shift fork shaft (100) is provided with a shift head (105), the shift head (105) is located at the end of the shift fork shaft (100), and the shift block (101) is located in the middle of the shift fork shaft (100).

3. The shift fork control mechanism according to claim 1, characterized in that: An annular guide frame (106) is provided on the outer wall of the locking ring (102), and the retaining groove plate (104) is located in the inner cavity of the annular guide frame (106).

4. The shift fork control mechanism according to claim 3, characterized in that: The annular guide frame (106) is fixed in the transmission in the axial direction of the shift fork shaft (100) and has no degree of freedom. It can only rotate around the shift fork shaft (100) under the action of the shift block (101).

5. The shift fork control mechanism according to claim 1, characterized in that: In the neutral state, the shift block (101) is not aligned with any of the shift slots; in the gear state, the shift block (101) is aligned with one of the shift slots.

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