Horizontally-installed gear shifting mechanism

Abstract

The utility model discloses a horizontally-installed gear shifting mechanism which comprises an outer shell and a gear shifting rod, a handle is installed on the gear shifting rod, and a gear shifting block assembly is further installed on the gear shifting rod. The shifting block assembly comprises a shifting block mounting block, a first rocker arm and a second rocker arm, and a first mounting ring and a second mounting ring are further mounted on the first rocker arm and the second rocker arm; the gear shifting block assembly further comprises a rocker arm shifting block, the gear shifting rod comprises an upper gear shifting rod body and a lower gear shifting rod body which are coaxially arranged, the upper gear shifting rod body is connected with the first installation ring in a sleeved mode, and the lower gear shifting rod body is connected with the second installation ring in a sleeved mode. A plurality of gear pulling plates are further installed in the outer shell, shifting block clamping grooves are formed in the gear pulling plates respectively, and the shifting block clamping grooves are matched with the rocker arm shifting blocks. The handle is mounted on the upper gear shifting rod; according to the horizontally-installed gear shifting mechanism, a horizontal structure is adopted, the gear shifting mechanism can still be installed under the condition of limited space, and the gear shifting function is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of transmissions, in particular to a horizontally installed gear shifting mechanism. Background Art

[0002] The single intermediate shaft transmission is usually installed vertically on the vehicle, but in some bus models and with limited space, vertical installation is not possible. Summary of the invention

[0003] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a horizontally mounted shift mechanism to solve the problem that the single intermediate shaft transmission in the prior art is vertically mounted and difficult to install under limited space conditions.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions to achieve the above problems: a horizontally installed shift mechanism, comprising an outer shell and a shift lever installed in the outer shell, one end of the shift lever extending out of the outer shell, a handle is installed on the end of the shift lever extending out of the outer shell, and a shift head assembly is also installed on the shift lever;

[0005] The shift head assembly comprises a shift head mounting block and a first rocker arm and a second rocker arm respectively mounted at two ends of the same side of the shift head mounting block, and a first mounting ring and a second mounting ring are respectively mounted on the first rocker arm and the second rocker arm;

[0006] The shifting head assembly further comprises a rocker arm shifting head mounted on the shifting head mounting block, wherein the rocker arm shifting head and the first rocker arm and the second rocker arm are on the same side of the shifting head mounting block;

[0007] The shift lever comprises an upper shift lever and a lower shift lever which are coaxially arranged, wherein the upper shift lever is sleeved with a first mounting ring, and the lower shift lever is sleeved with a second mounting ring;

[0008] A plurality of shift pull plates are also installed in the outer shell, and the plurality of shift pull plates are arranged in sequence from the lower shift lever to the upper shift lever, and are installed in the upper outer shell through a pressure plate, and the plurality of shift pull plates can move along their own length direction;

[0009] The plurality of gear pull plates are respectively provided with a shift head slot, and the shift head slot matches with the rocker arm shift head;

[0010] The distance between the ends of the upper shift lever and the lower shift lever is greater than the thickness of one shift pull plate and less than the thickness of two shift pull plates;

[0011] The handle is mounted on the upper shift lever;

[0012] The utility model also has the following technical features:

[0013] The outer shell comprises an upper cover shell, a dial head cavity, a lower cover shell and an end cover which are connected in sequence;

[0014] The upper shift lever passes through the upper cover shell;

[0015] The shift head assembly is located in the shift head cavity;

[0016] A connector is installed at one end of the upper shift lever passing through the upper cover shell, the connector is cylindrical, the diameter of the connector is smaller than the diameter of the upper shift lever, and the connector is connected to the handle;

[0017] A reset head is also installed at a section of the lower shift lever away from the upper shift lever. The reset head is cylindrical, the diameter of the reset head is smaller than the diameter of the lower shift lever, and a reset spring is sleeved on the outer side of the reset head.

[0018] The reset head is also sleeved with a first washer and a second washer, and the reset spring is installed between the first washer and the second washer;

[0019] The first washer cooperates with the step surface formed between the reset head and the lower shift lever, and the step surface opened on the inner side of the lower cover shell;

[0020] The second gasket is matched with one end of the end cover facing the lower cover shell.

[0021] The upper shift lever is fixed to the first mounting ring via an elastic cylindrical pin, and the lower shift lever is fixed to the second mounting ring via an elastic cylindrical pin;

[0022] The lower cover shell is also provided with a vent hole;

[0023] The portion of the upper shift lever in contact with the upper cover housing is sleeved with a first needle bearing, and the portion of the lower shift lever in contact with the lower cover housing is sleeved with a second needle bearing;

[0024] The plurality of gear pull plates include a reverse gear pull plate, a second gear pull plate, a third gear pull plate, and a fourth gear pull plate. The reverse gear pull plate, the second gear pull plate, and the fourth gear pull plate are arranged in sequence from the lower gear lever to the upper gear lever, and are installed in the upper outer shell through a pressure plate. The reverse gear pull plate, the second gear pull plate, and the fourth gear pull plate can move along their own length direction;

[0025] The first reverse gear pull plate, the second and third gear pull plates and the fourth and fifth gear pull plates are respectively provided with a shift head clamping groove, and the shift head clamping groove cooperates with the rocker arm shift head;

[0026] Compared with the prior art, the utility model has the following technical effects:

[0027] (I) The utility model provides a horizontally installed shifting mechanism, which adopts a horizontal structure and can still be installed under the condition of limited space to realize the shifting function.

[0028] (II) The horizontally installed shifting mechanism provided by the utility model has a simple structure, convenient operation, safety and reliability, and strong adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of the horizontally installed shifting mechanism of the utility model.

[0030] Figure 2 for Figure 1 A partial enlarged schematic diagram of .

[0031] Figure 3 It is a schematic diagram of the overall structure of the shift knob assembly.

[0032] Figure 4 It is a schematic diagram of the three-dimensional structure of the shift knob assembly.

[0033] The meaning of each symbol in the accompanying drawings:

[0034] 1-outer shell, 2-shift lever, 3-handle, 4-shift dial assembly, 5-shift pull plate, 6-elastic cylindrical pin, 7-vent, 8-first needle roller bearing, 9-second needle roller bearing;

[0035] 1-1 upper cover shell, 1-2 dial head cavity, 1-3 lower cover shell, 1-4 end cover;

[0036] 2-1 upper shift lever, 2-2 lower shift lever, 2-3 connecting head, 2-4 reset head, 2-5 reset spring, 2-6 first washer, 2-7 second washer;

[0037] 4-1 dial head mounting block, 4-2 first rocker arm, 4-3 second rocker arm, 4-4 first mounting ring, 4-5 second mounting ring, 4-6 rocker arm dial head;

[0038] 5-1 is the reverse gear pull plate, 5-2 is the second and third gear pull plate, 5-3 is the fourth and fifth gear pull plate;

[0039] The specific contents of the utility model are further explained in detail below in conjunction with the embodiments. DETAILED DESCRIPTION

[0040] All components in the present invention, unless otherwise specified, are components known in the prior art.

[0041] The following are specific embodiments of the present invention. It should be noted that the present invention is not limited to the following specific embodiments, and all equivalent changes made on the basis of the technical solution of the present application fall within the protection scope of the present invention.

[0042] Embodiment 1:

[0043] This embodiment provides a horizontally mounted shifting mechanism, such as Figure 1-Figure 2 As shown, it comprises an outer shell 1 and a shift lever 2 installed in the outer shell 1, one end of the shift lever 2 extends out of the outer shell 1, a handle 3 is installed on the end of the shift lever 2 extending out of the outer shell 1, and a shift dial assembly 4 is also installed on the shift lever 2;

[0044] The shift head assembly 4 includes a shift head mounting block 4-1 and a first rocker arm 4-2 and a second rocker arm 4-3 respectively mounted on the two ends of the same side of the shift head mounting block 4-1, and a first mounting ring 4-4 ​​and a second mounting ring 4-5 are also respectively mounted on the first rocker arm 4-2 and the second rocker arm 4-3;

[0045] The shifting head assembly 4 also includes a rocker arm shifting head 4-6 mounted on the shifting head mounting block 4-1, and the rocker arm shifting head 4-6 and the first rocker arm 4-2 and the second rocker arm 4-3 are on the same side of the shifting head mounting block 4-1;

[0046] The shift lever 2 comprises an upper shift lever 2-1 and a lower shift lever 2-2 which are coaxially arranged, wherein the upper shift lever 2-1 is sleeved with a first mounting ring 4-4, and the lower shift lever 2-2 is sleeved with a second mounting ring 4-5;

[0047] A plurality of shift pull plates 5 are also installed in the outer shell 1. The plurality of shift pull plates 5 are arranged in sequence from the lower shift lever 2-2 to the upper shift lever 2-1 and are installed in the upper outer shell 1 through a pressure plate. The plurality of shift pull plates 5 can move along their own length direction.

[0048] The plurality of shift pull plates 5 are respectively provided with a shift head slot, and the shift head slot matches with the rocker arm shift heads 4-6;

[0049] The distance between the ends of the upper shift lever 2-1 and the lower shift lever 2-2 is greater than the thickness of one shift pull plate 5 and less than the thickness of two shift pull plates 5;

[0050] The handle 3 is installed on the upper shift lever 2-1;

[0051] As a preferred embodiment of this invention:

[0052] The outer shell 1 comprises an upper cover shell 1-1, a dial head cavity 1-2, a lower cover shell 1-3 and an end cover 1-4 which are sequentially connected;

[0053] The upper shift lever 2-1 passes through the upper cover shell 1-1;

[0054] The shift head assembly 4 is located in the shift head cavity 1-2;

[0055] In actual parts, the shift head mounting block 4-1, the first rocker arm 4-2, the second rocker arm 4-3, the first mounting ring 4-4 ​​and the second mounting ring 4-5 are integrally formed, the shift head mounting block 4-1 and the rocker arm shift head 4-6 are connected and fastened by elastic cylindrical pins, and the shift head mounting block 4-1 and the rocker arm shift head 4-6 are fixed in space, and the rocker arm shift head 4-6, the shift head mounting block 4-1, the first rocker arm 4-2, the second rocker arm 4-3, the first mounting ring 4-4 ​​and the second mounting ring 4-5 form a shift shift head assembly 4, see Figure 3 and Figure 4 , and then connected to the upper shift lever 2-1 and the lower shift lever 2-2 respectively through the elastic cylindrical pins 6 on the upper and lower sides, and the upper shift lever 2-1 and the lower shift lever 2-2 are installed in the outer shell 1;

[0056] In order to realize automatic return of gear selection, a reset head 2-4 is installed at a section of the lower shift lever 2-2 away from the upper shift lever 2-1, and a reset spring 2-5 is sleeved on the outer side of the reset head 2-4. The end cover 1-4 limits the spring return device, and a reset spring 2-5 is installed between the first washer 2-6 and the second washer 2-7 on the upper and lower sides. Under the condition of space limitation on both sides, the movement and rebound in the upper and lower directions are realized by relying on the extension and compression of the spring, thereby realizing automatic return of the gear selection position.

[0057] In order to ensure the air pressure balance in the spring working chamber, a vent hole 7 is provided on the upper cover shell so that the gas pressure inside and outside the chamber remains consistent.

[0058] The first reverse gear pull plate 5-1, the second and third gear pull plates 5-2 and the fourth and fifth gear pull plates 5-3 are arranged in sequence and fixed on the upper cover shell through a pressing plate.

[0059] The transmission is a pull-plate type selection and shifting strategy, such as Figure 1 As shown. The upper shift lever 2-1 and the lower shift lever 2-2 are connected to the first mounting ring 4-4 ​​and the second mounting ring 4-5 through two elastic cylindrical pins 6. The upper shift lever 2-1 moves up and down to select gears. The upper shift lever 2-1 rotates to drive the shift head assembly 4. The rocker arm shift head 4-6 of the shift head assembly 4 pushes the first reverse gear pull plate 5-1, the second and third gear pull plate 5-2 or the fourth and fifth gear pull plate 5-3 to move and shift gears. Taking the fourth gear as an example, the control system must meet the following three conditions at the same time to achieve gear selection and shifting:

[0060] ① The end face of the lower shift lever 2-2 passes over the lower end face of the second and third gear pull plate 5-2 to achieve interlocking between gears;

[0061] ② The lower end surface of the rocker arm shift head 4-6 passes over the upper end surface of the second and third gear pull plate 5-2 to achieve gear engagement;

[0062] ③ The end face of the upper shift lever 2-1 extends out of the upper end face of the fourth and fifth gear pull plate 5-3 to ensure no interference.

[0063] As a preferred embodiment of this invention:

[0064] The end of the upper shift lever 2-1 passing through the upper cover shell 1-1 is equipped with a connector 2-3, the connector 2-3 is cylindrical, the diameter of the connector 2-3 is smaller than the diameter of the upper shift lever 2-1, and the connector 2-3 is connected to the handle 3;

[0065] A reset head 2-4 is installed at a section of the lower shift lever 2-2 away from the upper shift lever 2-1. The reset head 2-4 is cylindrical, and the diameter of the reset head 2-4 is smaller than the diameter of the lower shift lever 2-2. A reset spring 2-5 is sleeved on the outer side of the reset head 2-4.

[0066] The reset head 2-4 is also sleeved with a first washer 2-6 and a second washer 2-7, and the reset spring 2-5 is installed between the first washer 2-6 and the second washer 2-7;

[0067] The first washer 2-6 cooperates with the step surface formed between the reset head 2-4 and the lower shift lever 2-2, and the step surface opened on the inner side of the lower cover shell 1-3;

[0068] The second gasket 2-7 cooperates with one end of the end cover 1-4 facing the lower cover shell 1-3.

[0069] As a preferred embodiment of this invention:

[0070] The upper shift lever 2-1 is fixed to the first mounting ring 4-4 ​​via an elastic cylindrical pin 6, and the lower shift lever 2-2 is fixed to the second mounting ring 4-5 via an elastic cylindrical pin 6;

[0071] The lower cover shell 1-3 is also provided with a vent hole 7;

[0072] As a preferred embodiment of this invention:

[0073] The portion of the upper shift lever 2-1 that contacts the upper cover shell 1-1 is sleeved with a first needle roller bearing 8, and the portion of the lower shift lever 2-2 that contacts the lower cover shell 1-3 is sleeved with a second needle roller bearing 9; in order to reduce the friction resistance of the upper shift lever 2-1 and the lower shift lever 2-2 when moving up and down, the portion of the upper shift lever 2-1 that contacts the upper cover shell 1-1 is sleeved with a first needle roller bearing 8, and the portion of the lower shift lever 2-2 that contacts the lower cover shell 1-3 is sleeved with a second needle roller bearing 9, which plays a role in reducing resistance and guiding to a certain extent.

[0074] As a preferred embodiment of this invention:

[0075] The plurality of gear pull plates 5 include a reverse gear pull plate 5-1, a second and third gear pull plate 5-2, and a fourth and fifth gear pull plate 5-3. The reverse gear pull plate 5-1, the second and third gear pull plate 5-2, and the fourth and fifth gear pull plate 5-3 are arranged in sequence from the lower shift lever 2-2 to the upper shift lever 2-1, and are installed in the upper outer shell 1 through a pressure plate. The reverse gear pull plate 5-1, the second and third gear pull plate 5-2, and the fourth and fifth gear pull plate 5-3 can move along their own length direction;

[0076] The first reverse gear pull plate 5-1, the second and third gear pull plate 5-2 and the fourth and fifth gear pull plate 5-3 are respectively provided with a shift head slot, and the shift head slot is matched with the rocker arm shift head 4-6;

[0077] The specific working process of this embodiment is as follows:

[0078] When it is necessary to shift into the second or third gear, the position shown in the figure is the middle position of the neutral gear. The structure and size ensure that the upper shift lever 2-1 and the lower shift lever 2-2 respectively block the first reverse gear pull plate 5-1 and the fourth or fifth gear pull plate 5-3. At this time, by rotating the upper shift lever 2-1, the shift head assembly 4 is rotated together with the elastic cylindrical pin 6, thereby pushing the second or third gear pull plate 5-2 to move to realize the second or third gear shifting operation.

[0079] When it is necessary to shift the fourth or fifth gear, the upper shift lever 2-1 moves upward, and the shift head assembly 4 and the lower shift lever 2-2 move upward together under the joint action of the elastic cylindrical pin 6. When the lower end face of the upper shift lever 2-1 passes over the upper end face of the fourth or fifth gear pull plate 5-3, the upper end face of the lower shift lever 2-2 does not exceed the upper end face of the second or third gear pull plate 5-2. At this time, the rocker arm shift head 4-6 moves to the position of the fourth or fifth gear pull plate 5-3, and then by rotating the upper shift lever 2-1, the shift head assembly 4 rotates together under the joint action of the elastic cylindrical pin 6, thereby pushing the fourth or fifth gear pull plate 5-3 to achieve the fourth or fifth gear shifting operation.

[0080] When it is necessary to shift into a reverse gear, after the upper shift lever 2-1 moves downward, the rocker arm shift head 4-6 and the lower shift lever 2-2 also move downward under the joint action of the elastic cylindrical pin 6. When the lower end surface of the upper shift lever 2-1 is higher than the lower end surface of the second and third gear pull plate 5-2, and the upper end surface of the lower shift lever 2-2 is lower than the lower end surface of the first reverse gear pull plate 5-1, the rocker arm shift head 4-6 moves to the position of the first reverse gear pull plate 5-1. Then, by rotating the upper shift lever 2-1, the shift head assembly 4 is rotated together under the joint action of the elastic cylindrical pin 6, thereby pushing the first reverse gear pull plate 5-1 to move to achieve a reverse gear shifting operation.

[0081] The above technical solutions are only preferred specific implementation methods of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be thought of by any technician familiar with the field within the technical scope disclosed by the present utility model without creative work are all covered within the protection scope of the present utility model.

Claims

1. A horizontally mounted shift mechanism, comprising an outer shell (1) and a shift lever (2) mounted in the outer shell (1), wherein one end of the shift lever (2) extends out of the outer shell (1), a handle (3) is mounted on the end of the shift lever (2) extending out of the outer shell (1), and a shift knob assembly (4) is also mounted on the shift lever (2), characterized in that: The shifting head assembly (4) comprises a shifting head mounting block (4-1) and a first rocker arm (4-2) and a second rocker arm (4-3) respectively mounted at two ends of the same side of the shifting head mounting block (4-1); the first rocker arm (4-2) and the second rocker arm (4-3) are also respectively mounted with a first mounting ring (4-4) and a second mounting ring (4-5); The shifting paddle assembly (4) further comprises a rocker arm paddle (4-6) mounted on the paddle mounting block (4-1); the rocker arm paddle (4-6) and the first rocker arm (4-2) and the second rocker arm (4-3) are on the same side of the paddle mounting block (4-1); The shift lever (2) comprises an upper shift lever (2-1) and a lower shift lever (2-2) which are coaxially arranged, the upper shift lever (2-1) being sleeved with a first mounting ring (4-4), and the lower shift lever (2-2) being sleeved with a second mounting ring (4-5); A plurality of shift pull plates (5) are also installed in the outer shell (1). The plurality of shift pull plates (5) are arranged in sequence along the direction from the lower shift lever (2-2) to the upper shift lever (2-1), and are installed in the upper outer shell (1) via a pressure plate. The plurality of shift pull plates (5) can move along their own length direction. The plurality of shift pull plates (5) are respectively provided with shift head slots, and the shift head slots cooperate with the rocker arm shift heads (4-6); The distance between the ends of the upper shift lever (2-1) and the lower shift lever (2-2) is greater than the thickness of one shift pull plate (5) and less than the thickness of two shift pull plates (5); The handle (3) is installed on the upper shift lever (2-1).

2. The horizontally mounted shift mechanism according to claim 1, characterized in that: The outer shell (1) comprises an upper cover shell (1-1), a dial head cavity (1-2), a lower cover shell (1-3) and an end cover (1-4) which are sequentially connected and arranged; The upper shift lever (2-1) passes through the upper cover shell (1-1); The shift head assembly (4) is located in the shift head cavity (1-2).

3. The horizontally mounted shift mechanism according to claim 2, characterized in that: A connector (2-3) is installed at one end of the upper shift lever (2-1) that passes through the upper cover shell (1-1); the connector (2-3) is cylindrical; the diameter of the connector (2-3) is smaller than the diameter of the upper shift lever (2-1); and the connector (2-3) is connected to the handle (3); A reset head (2-4) is also installed at a section of the lower shift rod (2-2) away from the upper shift rod (2-1); the reset head (2-4) is cylindrical, the diameter of the reset head (2-4) is smaller than the diameter of the lower shift rod (2-2), and a reset spring (2-5) is sleeved on the outer side of the reset head (2-4); The reset head (2-4) is also sleeved with a first washer (2-6) and a second washer (2-7), and the reset spring (2-5) is installed between the first washer (2-6) and the second washer (2-7); The first gasket (2-6) cooperates with the step surface formed between the reset head (2-4) and the lower shift lever (2-2), and the step surface opened on the inner side of the lower cover shell (1-3); The second gasket (2-7) matches with one end of the end cover (1-4) facing the lower cover shell (1-3).

4. The horizontally mounted shift mechanism according to claim 2, characterized in that: The upper shift lever (2-1) is fixed to the first mounting ring (4-4) via an elastic cylindrical pin (6), and the lower shift lever (2-2) is fixed to the second mounting ring (4-5) via an elastic cylindrical pin (6); The lower cover shell (1-3) is also provided with a vent hole (7).

5. The horizontally mounted shift mechanism according to claim 2, characterized in that: The portion of the upper shift lever (2-1) in contact with the upper cover shell (1-1) is sleeved with a first needle roller bearing (8), and the portion of the lower shift lever (2-2) in contact with the lower cover shell (1-3) is sleeved with a second needle roller bearing (9).

6. The horizontally mounted shift mechanism according to claim 1, characterized in that: The plurality of gear pull plates (5) include a reverse gear pull plate (5-1), a second and third gear pull plate (5-2) and a fourth and fifth gear pull plate (5-3); the reverse gear pull plate (5-1), the second and third gear pull plate (5-2) and the fourth and fifth gear pull plate (5-3) are arranged in sequence along the direction from the lower shift lever (2-2) to the upper shift lever (2-1), and are installed in the upper outer shell (1) through a pressure plate; the reverse gear pull plate (5-1), the second and third gear pull plate (5-2) and the fourth and fifth gear pull plate (5-3) can move along their own length direction; The first reverse gear pull plate (5-1), the second and third gear pull plate (5-2) and the fourth and fifth gear pull plate (5-3) are respectively provided with a shift head clamping groove, and the shift head clamping groove is matched with the rocker arm shift head (4-6).

Images