Shift positioning assist device

Abstract

This invention relates to the field of shift assist and discloses a shift positioning assist device, including a mounting arm (62), wherein a first positioning assist sleeve (4) and a second positioning assist sleeve (3) are connected by an assist spring (6) for accumulating and releasing steering assist; in the positioning state, the first positioning assist sleeve (4) and the second positioning assist sleeve (3) are positioned and connected by a positioning device, and the first positioning assist sleeve (4) and the second positioning assist sleeve (3) are coaxially arranged and the axis is perpendicular to the horizontal fixed shaft (5) or the long fixed shaft (7); when the positioning rod rotates and drives the first positioning assist sleeve (4) to rotate a certain angle, the first positioning assist sleeve (4) and the second positioning assist sleeve (3) disengage from the positioning, and the assist spring (6) releases elastic potential energy to achieve assist. This device has the advantages of compact structure, fewer parts, and controllable assist process.

Description

Technical Field

[0001] This invention relates to the field of joysticks, and more particularly to a shift positioning assist device. Background Technology

[0002] Chinese patent CN201910156926.2 discloses a mechanical transmission shift assist system. This system, through the coordinated arrangement of a shift guide shaft, an assist input block, an assist output block, a gear selection guide shaft, an assist input rod, and an assist output rod, makes gear shifting in automobiles easier, smoother, and more comfortable, reducing driver workload. However, this type of shift positioning assist device has a relatively complex structure. This solution designs a novel shift positioning assist device to achieve stable shifting. Summary of the Invention

[0003] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0004] A shift positioning assist device includes a mounting arm; one end of the mounting arm is fixedly connected to a gear shift lever, and the other end of the mounting arm is connected to a cross-shaped central shaft, which is connected to the mounting arm via a horizontal fixed shaft.

[0005] A power assist mechanism is connected between the gear shift lever and the cross-shaped central shaft. The power assist mechanism includes a positioning power assist sleeve one and a positioning power assist sleeve two. The positioning power assist sleeve one is connected to the mounting arm through a long fixed shaft and can rotate around the long fixed shaft. The long fixed shaft is set parallel to the horizontal fixed shaft. The positioning power assist sleeve two is connected to the cross-shaped central shaft and can rotate around the short fixed shaft connected to the cross-shaped central shaft. The central axis of rotation is parallel to the horizontal fixed shaft.

[0006] Positioning assist sleeve one and positioning assist sleeve two are connected by an assist spring for accumulating and releasing steering assist; in the positioning state, positioning assist sleeve one and positioning assist sleeve two are positioned and connected by a positioning device, and positioning assist sleeve one and positioning assist sleeve two are set on the same axis and the axis is perpendicular to the horizontal fixed axis or the long fixed axis; when the positioning rod rotates and drives positioning assist sleeve one to rotate a certain angle, positioning assist sleeve one and positioning assist sleeve two are disengaged from the positioning, and the assist spring releases elastic potential energy to realize assist.

[0007] Preferably, the positioning assist sleeve one includes a connecting sleeve one for connecting with the gear shift lever and a sleeve body one for cooperating with the positioning assist sleeve two. The positioning assist sleeve two includes a connecting sleeve two for connecting with the cross-shaped central shaft and a sleeve body two for connecting with the positioning assist sleeve one. The sleeve body one and the sleeve body two are sleeved together. In the positioning state and during the process of the assist spring releasing the gear shift lever in the assist state, the sleeve body one and the sleeve body two are always in the sleeved state.

[0008] Preferably, the positioning device includes a positioning protrusion and a positioning recess that mates with the positioning protrusion;

[0009] The positioning protrusion is set on the outer surface of sleeve one, and the positioning recess is set on the inner surface of sleeve two;

[0010] Alternatively, positioning protrusions may be set on the inner surface of sleeve two, and positioning recesses may be set on the outer surface of sleeve one.

[0011] As a preferred embodiment, unlike claim 1, the positioning assist sleeve one is connected to the cross-shaped central axis, and the positioning assist sleeve two is connected to the long fixed rod.

[0012] Preferably, the mounting arm includes arm plate one, arm plate two, and a connecting plate connected between arm plate one and arm plate two. The two ends of the long fixed shaft are connected to arm plate one and arm plate two, and the two ends of the horizontal fixed shaft are connected to arm plate one and arm plate two. Positioning assist sleeve one and positioning assist sleeve two are installed in the space enclosed by arm plate one, arm plate two, long fixed shaft, and horizontal fixed shaft.

[0013] Preferably, the cross-shaped central shaft includes a connecting sleeve three sleeved on the horizontal fixed shaft and a connecting ear (21) for connecting with the positioning assist sleeve two. The connecting ear (21) is connected to the positioning assist sleeve two through a short fixed shaft, and the positioning assist sleeve two can rotate around the short fixed shaft.

[0014] As a preferred embodiment, wear-resistant sleeves are installed inside both connecting sleeve one and connecting sleeve two, and wear-resistant sleeves are provided on the inner side of the part connecting the cross-shaped central shaft and the horizontal fixed shaft.

[0015] Through the above technical solutions, the present invention has the following technical effects:

[0016] This design proposes a shift positioning assist device, which has the advantages of simple structure, compact overall design, and simple control. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the positioning device and a partial sectional view.

[0018] Figure 2 This is a schematic diagram of the cross-shaped central axis.

[0019] Figure 3 This is a schematic diagram of the positioning assist kit.

[0020] Figure 4 This is a schematic diagram of a positioning assist device.

[0021] Figure 5 This is a schematic diagram of the positioning status.

[0022] Figure 6 This is a diagram illustrating the shift assist status.

[0023] Figure 7 This is a force analysis diagram.

[0024] The reference numerals in the figure are labeled with the following technical names:

[0025] 1. Gear shift lever

[0026] 2. Cross-shaped central axis

[0027] 3. Positioning Assist Set Two

[0028] 4. Positioning Assist Set

[0029] 5. Horizontal fixed shaft

[0030] 6. Assist springs

[0031] 7 Long fixed shafts

[0032] 8 Short fixed shafts

[0033] 9. Wear-resistant sleeve

[0034] 21 Connecting Ear

[0035] 22 Gear Selection Rotation Center Shaft

[0036] 23. Shift rotation center shaft hole

[0037] 31. Positioning pit

[0038] 43 Positioning protrusions

[0039] 62 mounting arms

[0040] 42 Connecting sleeve one

[0041] 41 sets of body

[0042] 65 Connecting Sleeve Two

[0043] 66 sets of body two

[0044] 67 Connecting sleeve three

[0045] 68 sets of body three

[0046] 69 Arm Plate One

[0047] 70 Arm Plate Two

[0048] 71 Connecting plate. Detailed Implementation

[0049] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0050] Example 1

[0051] A shift positioning assist device includes a mounting arm 62, one end of which is fixedly connected to a gear shift lever 1, and the other end of which is connected to a cross-shaped central shaft 2. The cross-shaped central shaft 2 is connected to the mounting arm 62 via a horizontal fixed shaft 5.

[0052] A power assist mechanism is connected between the gear shift lever 1 and the cross-shaped central shaft 2. The power assist mechanism includes a positioning power assist sleeve 4 and a positioning power assist sleeve 3. The positioning power assist sleeve 4 is connected to the mounting arm 62 through a long fixed shaft 7 and can rotate around the long fixed shaft 7. The long fixed shaft 7 is arranged parallel to the horizontal fixed shaft 5. The positioning power assist sleeve 3 is connected to the cross-shaped central shaft 2 and can rotate around the short fixed shaft 8 connected to the cross-shaped central shaft 2. The central axis of rotation is parallel to the horizontal fixed shaft 5.

[0053] The first positioning assist sleeve 4 and the second positioning assist sleeve 3 are connected by an assist spring 6 for accumulating and releasing steering assist. In the positioning state, the first positioning assist sleeve 4 and the second positioning assist sleeve 3 are connected by a positioning device, and are coaxially arranged with the axis perpendicular to the horizontal fixed shaft 5 or the long fixed shaft 7. When the positioning rod rotates, causing the first positioning assist sleeve 4 to rotate by a certain angle, the first positioning assist sleeve 4 and the second positioning assist sleeve 3 disengage, and the assist spring 6 releases its elastic potential energy to provide assistance. During the shift assist process, the cross-shaped central shaft 2 remains stationary and does not rotate.

[0054] In this embodiment, the positioning assist sleeve 4 includes a connecting sleeve 42 for connecting with the gear shift lever 1 and a sleeve body 41 for cooperating with the positioning assist sleeve 3. The positioning assist sleeve 3 includes a connecting sleeve 65 for connecting with the cross-shaped central shaft 2 and a sleeve body 66 for connecting with the positioning assist sleeve 4. The sleeve body 41 and the sleeve body 66 are sleeved together. During the positioning state and when the assist spring 6 releases and the gear shift lever 1 is in the assist state, the sleeve body 41 and the sleeve body 66 are always sleeved together. The sleeve structure facilitates stable return after the assist is completed, avoiding jamming.

[0055] The positioning device selected in this embodiment has the following structure: the positioning device includes a positioning protrusion 43 and a positioning recess 31 that cooperates with the positioning protrusion 43; specifically, the positioning protrusion 43 is hemispherical, and the shape of the positioning recess 31 matches the shape of the positioning protrusion 43. In this embodiment, the outer diameter of the connecting sleeve 1 42 is smaller than the inner diameter of the connecting sleeve 2 65, and the assist spring 6 is installed inside the connecting sleeve 1 42 with its other end abutting against the bottom surface of the inner hole of the connecting sleeve. In this embodiment, the positioning protrusion 43 is disposed on the outer surface of the sleeve 1 41, and the positioning recess 31 is disposed on the inner surface of the sleeve 2 66. The positioning protrusion 43 is an elastic element that can retract inward under the action of external force.

[0056] In this embodiment, the mounting arm 62 includes an arm plate 69, an arm plate 70, and a connecting plate 71 connecting the arm plate 69 and the arm plate 70. The two ends of the long fixed shaft 7 are connected to the arm plate 69 and the arm plate 70, and the two ends of the horizontal fixed shaft 5 are connected to the arm plate 69 and the arm plate 70. The positioning assist sleeve 4 and the positioning assist sleeve 3 are installed in the space enclosed by the arm plate 69, the arm plate 70, the long fixed shaft 7, and the horizontal fixed shaft 5. This structural design can make the whole device more compact. The gear shift lever 1 is integrally formed on the connecting plate 71.

[0057] In this embodiment, the cross-shaped central shaft 2 includes a connecting sleeve 3 67 sleeved on the horizontal fixed shaft 5 and a connecting ear 21 for connecting with the positioning assist sleeve 2 3. The connecting ear 21 and the positioning assist sleeve 2 3 are connected through a short fixed shaft 8, and the positioning assist sleeve 2 3 can rotate around the short fixed shaft 8. There are two connecting ears 21, and the connecting sleeve 2 65 is located between the two connecting ears 21 and connected through the short fixed shaft 8.

[0058] In this embodiment, wear-resistant sleeves 9 are installed inside both connecting sleeve 1 42 and connecting sleeve 2 65, and wear-resistant sleeves 9 are provided on the inner side of the connection part between the cross-shaped central shaft 2 and the horizontal fixed shaft 5. During assembly, the corresponding parts are first installed with the wear-resistant sleeves 9 and then installed onto the corresponding shafts.

[0059] When the gear lever 1 is in a position perpendicular to the cross-shaped central axis 2, the positioning assist device is in a positioning state. The positioning protrusion 43 of the positioning assist sleeve 1 4 and the positioning recess 31 of the positioning assist sleeve 2 3 cooperate with each other to form a positioning. The assist spring 6 is in a compressed and stored state. At this time, the gear lever 1 is perpendicular to the gear selection rotation central axis 22. When the gear lever 1 rotates forward or backward around the hole 23 of the gear shift rotation central axis 22, it is a gear shifting operation. When the gear lever 1 rotates around the cross-shaped central axis 2, the rotation radius of the positioning assist sleeve 1 4 is large, and the rotation radius of the positioning assist sleeve 2 3 is small. The two move longitudinally relative to each other. The gear lever 1 pulls the positioning assist sleeve 1 4 up and down, causing it to separate from the positioning assist sleeve 2 3. After rotating a certain angle, the positioning protrusion 43 disengages from the positioning recess and becomes free. At this time, the assist spring 6 releases its elastic force. According to the parallelogram law, the elastic force is decomposed, and a part of it is released as rotational assist. At this time, the gear shift lever 11 forms an acute angle of 22° with the gear selection center shaft, and the assist spring 66 releases its elastic force. According to the parallelogram law, the elastic force is decomposed, and a part of the lateral elastic force becomes the shift assist. The shift positioning assist device is in the assist state.

[0060] When the gear shift lever 1 is in a position perpendicular to the cross-shaped central axis 2, the positioning assist device is in a positioning state. The positioning protrusion 43 of the positioning assist sleeve 1 4 and the positioning recess 31 of the positioning assist sleeve 2 3 cooperate with each other to form a positioning. The assist spring 6 is in a compressed and stored state. At this time, the gear shift lever 1 is perpendicular to the gear selection rotation central axis 22. When the gear shift lever 1 rotates to the left or right around the gear selection rotation central axis 22, it is a gear selection operation. At this time, the gear shift lever 1, positioning assist sleeve 1 4, positioning assist sleeve 2 3 and the cross-shaped central axis 2 are relatively stationary. The positioning assist sleeve 1 4 and the positioning assist sleeve 2 3 do not produce relative displacement. The gear shift positioning assist device is always in a positioning state.

[0061] Working principle

[0062] like Figure 7 As shown, the rotation center of the gear shift lever 1 (O1A) is O1, and the rotation center of the shift positioning assist device (O2A) is O2. In state O1A, the elastic protrusion of the inner positioning assist sleeve engages with the groove of the outer positioning assist sleeve, forming a positioning function; the assist spring 6 is in a compressed, energy-storing state. When O1A rotates to O1B or O1C, the length of O2A increases to O2B or O2C, meaning the outer and inner positioning assist sleeves separate. During the rotation from O1A to O1B or O1C, the spring releases a force N, with the force directed towards O2B or O2C. Taking O2B as an example, according to the parallelogram law, the force can be decomposed into N1 and N2, where N1 is the rotational assist. That is, the shift positioning assist device is in an assist state. Similarly, the shift positioning assist device is also in an assist state when rotating in the opposite direction.

[0063] Example 2

[0064] The difference between this embodiment and embodiment 1 is that the positioning assist sleeve 4 and the positioning assist sleeve hole structure are cylindrical, but not limited to cylindrical, as long as they can slide relative to each other.

[0065] Example 3

[0066] The difference between this embodiment and embodiment 1 is that the cross-shaped central shaft 2 is a cast part.

Claims

1. A shift positioning assist device, characterized in that: Includes a mounting arm (62); one end of the mounting arm (62) is fixedly connected to a gear shift lever (1), and the other end of the mounting arm (62) is connected to a cross-shaped central shaft (2), which is connected to the mounting arm (62) via a horizontal fixed shaft (5); A power assist mechanism is connected between the gear shift lever (1) and the cross-shaped central shaft (2). The power assist mechanism includes a positioning power assist sleeve one (4) and a positioning power assist sleeve two (3). The positioning power assist sleeve one (4) is connected to the mounting arm (62) through a long fixed shaft (7) and can rotate around the long fixed shaft (7). The long fixed shaft (7) is set parallel to the horizontal fixed shaft (5). The positioning power assist sleeve two (3) is connected to the cross-shaped central shaft (2) and can rotate around the short fixed shaft (8) connected to the cross-shaped central shaft (2). The central axis of rotation is parallel to the horizontal fixed shaft (5). Positioning assist sleeve one (4) and positioning assist sleeve two (3) are connected by an assist spring (6) for accumulating and releasing steering assist; in the positioning state, positioning assist sleeve one (4) and positioning assist sleeve two (3) are connected by a positioning device, and positioning assist sleeve one (4) and positioning assist sleeve two (3) are set on the same axis and the axis is perpendicular to the horizontal fixed axis (5) or the long fixed axis (7); when the positioning rod rotates and drives positioning assist sleeve one (4) to rotate a certain angle, positioning assist sleeve one (4) and positioning assist sleeve two (3) are disengaged from the positioning, and the assist spring (6) releases elastic potential energy to achieve assist; The positioning assist sleeve one (4) includes a connecting sleeve one (42) for connecting with the gear shift lever (1) and a sleeve one (41) for cooperating with the positioning assist sleeve two (3). The positioning assist sleeve two (3) includes a connecting sleeve two (65) for connecting with the cross-shaped central shaft (2) and a sleeve two (66) for connecting with the positioning assist sleeve one (4). The sleeve one (41) and the sleeve two (66) are sleeved together. In the positioning state and during the process of the assist spring (6) releasing the gear shift lever (1) to be in the assist state, the sleeve one (41) and the sleeve two (66) are always in the sleeved state. The positioning device includes a positioning protrusion (43) and a positioning recess (31) that cooperates with the positioning protrusion (43). The positioning protrusion (43) is provided on the outer surface of the first sleeve (41), and the positioning recess (31) is provided on the inner surface of the second sleeve (66); Alternatively, a positioning protrusion (43) may be provided on the inner surface of sleeve two (66), and a positioning recess (31) may be provided on the outer surface of sleeve one (41); The cross-shaped central shaft (2) includes a connecting sleeve three (67) sleeved on the horizontal fixed shaft (5) and a connecting ear (21) for connecting with the positioning assist sleeve two (3). The connecting ear (21) is connected to the positioning assist sleeve two (3) through a short fixed shaft (8). The positioning assist sleeve two (3) can rotate around the short fixed shaft (8).

2. The shift positioning assist device according to claim 1, characterized in that: Unlike claim 1, the positioning assist sleeve one (4) is connected to the cross-shaped central axis (2), and the positioning assist sleeve two (3) is connected to the long fixed rod.

3. The shift positioning assist device according to claim 1, characterized in that: The mounting arm (62) includes arm plate one (69), arm plate two (70) and a connecting plate (71) connected between arm plate one (69) and arm plate two (70). The two ends of the long fixed shaft (7) are connected to arm plate one (69) and arm plate two (70). The two ends of the horizontal fixed shaft (5) are connected to arm plate one (69) and arm plate two (70). Positioning assist sleeve one (4) and positioning assist sleeve two (3) are installed in the space enclosed by arm plate one (69), arm plate two (70), long fixed shaft (7) and horizontal fixed shaft (5).

4. The shift positioning assist device according to claim 1, characterized in that: Wear-resistant sleeves (9) are installed inside both connecting sleeve one (42) and connecting sleeve two (65), and wear-resistant sleeves (9) are provided on the inner side of the connection part between the cross-shaped central shaft (2) and the horizontal fixed shaft (5).

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