Auxiliary mounting device for gear selecting and shifting executing mechanism of integrated gearbox of commercial vehicle

Abstract

The utility model relates to an auxiliary installation device, in particular to an auxiliary installation device for a gear selecting and shifting execution mechanism of an integrated gearbox of a commercial vehicle, which is used for solving the problems that when a GSU and a gearbox body are assembled, due to the fact that the installation position is not in place, normal gear selecting and shifting cannot be achieved, and the requirement for the positioning accuracy of an auxiliary box shifting fork shaft and a main box shifting block is high. And accurate adjustment cannot be carried out through visual inspection. The auxiliary mounting device for the gear selecting and shifting executing mechanism of the integrated gearbox of the commercial vehicle comprises a bottom plate, a first cylindrical sheath, a second cylindrical sheath, a side plate, a main box gear shifting block positioning sliding rod, an auxiliary box shifting fork shaft positioning sliding rod, a first fastener and a second fastener, wherein the first cylindrical sheath and the second cylindrical sheath are arranged on the bottom plate; the side plate is vertically connected with the bottom plate; and the mounting positions of the main box gear shifting block and the auxiliary box shifting fork shaft are determined by utilizing the axial lengths of the main box gear shifting block positioning sliding rod and the auxiliary box shifting fork shaft positioning sliding rod, so that the mounting operation of the gearbox and the GSU is simpler, and the mounting efficiency can be further improved.

Description

Technical Field

[0001] The utility model relates to an auxiliary installation device, in particular to an auxiliary installation device for an integrated transmission gear selection and shifting actuator of a commercial vehicle. Background Art

[0002] Throughout the history of commercial vehicle development, intelligent, lightweight, and comfortable operation have become the trend. With the gradual penetration and increasing market share of AMT (Automatic Mechanical Transmission) transmissions in the domestic market, more and more users are trusting and preferring AMT products. The mainstream AMT products for commercial vehicles currently include modular and integrated types. As the name suggests, integrated transmissions integrate the shift actuator, brake, and various solenoid valves, offering advantages such as a clean structure and low failure rate. Compared to modular transmissions, integrated AMTs offer improved operating comfort, economy, and reliability. One of the most notable features of the integrated AMT is its integrated gear selecting unit (GSU). During assembly, the GSU must be positioned above the transmission housing. During this process, the positions of the auxiliary gear shift fork shaft, shift block, and interlock block must be correctly aligned with those of the GSU to ensure proper gear selection and shifting.

[0003] Chinese patent CN209762216U discloses a "rotary direct-push shift mechanism," comprising a shift shaft with a shift knob fixed to it; a main transmission shift fork sleeved on the shift shaft, with the shift shaft and the main transmission shift fork in driving engagement; a shift handle fixed to the main transmission fork, with a shift slot provided on the shift handle; a shift pin provided on the shift shaft, with the shift slot and the shift pin limiting engagement, with the shift shaft and the main transmission shift fork in driving engagement via the shift pin. This shift mechanism effectively reduces the number of parts and saves space for the transmission top cover. It is suitable for direct-push transmissions, but requires precise alignment of the mounting positions for proper shifting.

[0004] Chinese patent CN117847214A discloses a "self-locking interlocking device for selecting and shifting an automatic transmission (AMT) transmission and its use method," comprising a main transmission shift fork shaft, a locating pin, a shift head, and a reverse shift fork, a shift block, an interlocking block, first and second gear shift forks, and third and fourth gear shift forks, which are sequentially sleeved on the main transmission shift fork shaft. The shift block is fixed to the main transmission shift fork shaft via a locating pin. The interlocking block comprises an interlocking sleeve, a shift selector head, a first interlocking block, and a second interlocking block. The shift head comprises a shift fork pin head, an axial limit platform, and a shift fork pin block. The reverse shift fork, first and second gear shift forks, and third and fourth gear shift forks are each provided with a groove adapted to the shift fork pin block, the first interlocking block, and the second interlocking block, and the three grooves are located on the same circumference. The shift fork pin block on the shift head is configured to engage with one of the selected grooves, while the first interlocking block and the second interlocking block are configured to engage with the remaining two grooves. Improper engagement directly affects the shifting requirements of different gears and torques.

[0005] In summary, the existing technology is difficult to solve the technical problem that the gear cannot be selected and shifted normally due to improper installation position, and the positioning accuracy requirements of the auxiliary box fork shaft and the shift block are high, and precise adjustment cannot be performed by visual inspection. Utility Model Content

[0006] The purpose of the utility model is to solve the technical problem that when the GSU and the gearbox body are assembled, the gear selection and shifting cannot be normally selected due to the improper installation position, and the positioning accuracy requirement of the auxiliary box shift fork shaft and the main box shift block is high, and accurate adjustment cannot be performed by visual inspection. The utility model provides an auxiliary installation device for the integrated gearbox selector and shift actuator of a commercial vehicle.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] An auxiliary mounting device for a commercial vehicle integrated transmission shift actuator is used to assist in mounting the GSU on the transmission. The device comprises a base plate, a first cylindrical sheath and a second cylindrical sheath disposed on the base plate, a side plate perpendicularly connected to one side of the base plate, a main transmission shift block positioning slide rod, a secondary transmission shift fork shaft positioning slide rod, a first fastener, and a second fastener.

[0009] Both ends of the first cylindrical sheath and the second cylindrical sheath extend beyond both sides of the base plate, and one end of the first cylindrical sheath is used to be inserted into the third screw hole on the gearbox, and the other end is used to be inserted into the first screw hole on the GSU base plate; one end of the second cylindrical sheath is used to be inserted into the fourth screw hole on the gearbox, and the other end is used to be inserted into the second screw hole on the GSU base plate, and the outer diameters of the first cylindrical sheath and the second cylindrical sheath are both smaller than the inner diameters of the first and second screw holes on the GSU base plate, and the inner diameters of the third and fourth screw holes on the gearbox;

[0010] A first positioning slide rod sleeve is provided on one end of the side wall away from the bottom plate to cooperate with the main gear shift block positioning slide rod, and a second positioning slide rod sleeve is provided on the other end to cooperate with the auxiliary gear shift fork shaft positioning slide rod; axial long strip holes are respectively provided on the side walls of the first positioning slide rod sleeve and the second positioning slide rod sleeve;

[0011] One end of the main gear shift block positioning slide rod is slidably connected to the first positioning slide rod sleeve, and the other end is used to abut against the shift paddle of the GSU or the main gear shift block on the gearbox; one end of the auxiliary gear shift fork shaft positioning slide rod is slidably connected to the second positioning slide rod sleeve, and the other end is used to abut against the auxiliary gear shift actuator of the GSU or the auxiliary gear shift fork shaft on the gearbox;

[0012] The first fastener passes through the axial long hole on the first positioning slide sleeve and is connected to the main box shift block positioning slide; the second fastener passes through the axial long hole on the side wall of the second positioning slide sleeve and is connected to the auxiliary box fork shaft positioning slide.

[0013] Furthermore, the lengths of the first cylindrical sheath and the second cylindrical sheath are both smaller than the depths of the first screw hole, the second screw hole, the third screw hole, and the fourth screw hole.

[0014] Furthermore, the side panel includes a first side panel and a second side panel vertically connected to one side edge of the bottom panel, and a connecting panel for connecting the first side panel and the second side panel;

[0015] One end of the first positioning slide sleeve is fixedly connected to the side wall of the first side plate away from the bottom plate, and the other end is slidably connected to one end of the main box shift block positioning slide;

[0016] One end of the second positioning slide rod sleeve is fixedly connected to the side wall of the second side plate away from the bottom plate, and the other end is slidably connected to one end of the auxiliary box fork shaft positioning slide rod.

[0017] Furthermore, nuts and washers are provided between the first fastener and the first positioning slide rod sleeve, and between the second fastener and the second positioning slide rod sleeve.

[0018] Furthermore, the main box shift block positioning slide bar is perpendicular to the first side plate;

[0019] The auxiliary box shift fork shaft positioning slide rod is perpendicular to the second side plate.

[0020] Furthermore, the first fastener and the second fastener are respectively located on opposite sides of the first positioning slide rod sleeve and the second positioning slide rod sleeve.

[0021] Furthermore, the other end portion of the main gear shift block positioning slide rod is provided with a first arc segment adapted to the main gear shift block.

[0022] Furthermore, the other end portion of the auxiliary box shift fork shaft positioning slide rod is provided with a second arc segment adapted to the auxiliary box shift fork shaft.

[0023] Beneficial effects of the utility model:

[0024] 1. The utility model provides an auxiliary installation device for a commercial vehicle integrated transmission shift actuator. During the GSU installation process, the cylindrical fixing sheaths (first cylindrical sheath and second cylindrical sheath) on the base plate need to be inserted into the screw holes (first screw hole and second screw hole) on the transmission respectively, and then the axial lengths of the main box shift block positioning slide rod and the auxiliary box shift fork shaft positioning slide rod are adjusted by fasteners (first fastener and second fastener). The axial lengths of the main box shift block positioning slide rod and the auxiliary box shift fork shaft positioning slide rod are used to determine the installation positions of the main box shift block and the auxiliary box shift fork shaft, making the installation operation of the transmission and GSU simpler and further improving the installation efficiency.

[0025] 2. The utility model provides an auxiliary installation device for a commercial vehicle integrated transmission shift actuator with a simple structure. Compared with the original installation method, the auxiliary box shift fork shaft and the shift block are positioned by auxiliary installation tools, which greatly improves the installation accuracy, installation success rate and installation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a structural schematic diagram of an embodiment of an auxiliary mounting device for an integrated transmission shift actuator for a commercial vehicle according to the utility model;

[0027] Figure 2 It is a schematic diagram of the local structure of the gearbox;

[0028] Figure 3 This is a schematic diagram of the local structure of GSU.

[0029] Description of reference numerals:

[0030] 1-shift paddle; 2-first screw hole; 3-GSU base plate; 4-second screw hole; 5-auxiliary box shift actuator; 6-third screw hole; 7-main box shift block; 8-fourth screw hole; 9-auxiliary box shift fork shaft; 10-base plate; 11-first cylindrical sheath; 12-second cylindrical sheath; 13-main box shift block positioning slide; 131-first positioning slide sleeve; 132-first arc segment; 14-first fastener; 15-second fastener; 16-auxiliary box shift fork shaft positioning slide; 161-second positioning slide sleeve; 162-second arc segment; 17-side plate; 171-first side plate; 172-second side plate. DETAILED DESCRIPTION

[0031] like Figure 2 、 Figure 3As shown, the GSU is installed on the gearbox so that the shift paddle 1 on the GSU abuts against the main gearbox shift block 7 on the gearbox; the auxiliary gearbox shift actuator 5 of the GSU abuts against the auxiliary gearbox shift fork shaft 9 on the gearbox.

[0032] like Figure 1 、 Figure 2 、 Figure 3 As shown, an auxiliary installation device for a commercial vehicle integrated transmission shift actuator includes a base plate 10, a first cylindrical sheath 11, a second cylindrical sheath 12, a side plate 17, a main box shift block positioning slide rod 13, a sub-box shift fork shaft positioning slide rod 16, a first fastener 14 and a second fastener 15; the side plate 17 includes a first side plate 171 and a second side plate 172 vertically connected to one side edge of the base plate 10, and a connecting plate for connecting the first side plate 171 and the second side plate 172; the first side plate 171 and the second side plate 172 are respectively vertically connected to the base plate 10, and a first fastener that cooperates with the main box shift block positioning slide rod 13 is provided on the side wall of the first side plate 171 away from the first cylindrical sheath 11 The positioning slide sleeve 131, the second side plate 172 is provided with a second positioning slide sleeve 161 that cooperates with the auxiliary box fork shaft positioning slide 16 on the side wall away from the second cylindrical sheath 12; the first positioning slide sleeve 131 and the second positioning slide sleeve 161 are respectively provided with axial long holes on the side walls; one end of the main box shift block positioning slide 13 is slidably connected with the first positioning slide sleeve 131, and the other end is used to abut with the shift paddle 1 of the GSU or the main box shift block 7 on the gearbox; one end of the auxiliary box fork shaft positioning slide 16 is slidably connected with the second positioning slide sleeve 161, and the other end is used to abut with the auxiliary box shift actuator 5 of the GSU or the auxiliary box fork shaft 9 on the gearbox.

[0033] The first cylindrical sheath 11 and the second cylindrical sheath 12 are fixedly connected to the base plate 10, and both ends of the first cylindrical sheath 11 and the second cylindrical sheath 12 extend beyond the base plate 10. The first cylindrical sheath 11 on the base plate 10 corresponds to the position of the third screw hole 6 on the gearbox and the position of the first screw hole 2 on the GSU base plate 3, respectively, and the second cylindrical sheath 12 corresponds to the position of the fourth screw hole 8 on the gearbox and the position of the second screw hole 4 on the edge of the GSU. The lengths of the first cylindrical sheath 11 and the second cylindrical sheath 12 are both smaller than the depths of the first screw holes 2 and 4 on the GSU base plate and the depths of the third screw holes 6 and the fourth screw holes 8 on the gearbox; the outer diameters of the first cylindrical sheath 11 and the second cylindrical sheath 12 are both smaller than the inner diameters of the first screw holes 2 and 4 on the GSU base plate and the inner diameters of the third screw holes 6 and the fourth screw holes 8 on the gearbox.

[0034] The main box shift block positioning slide 13 and the auxiliary box shift fork shaft positioning slide 16 are respectively perpendicular to the first side plate 171 and the second side plate 172 and are placed on the same side of the first side plate 171 and the second side plate 172; one end of the main box shift block positioning slide 13 is fixedly connected to the side wall of the first side plate 171 away from the first cylindrical pin 11, and the other end is used to abut against the shift paddle 1 of the GSU; one end of the auxiliary box shift fork shaft positioning slide 16 is connected to the side wall of the second side plate 172 away from the second cylindrical sheath 12, and the other end is used to abut against the auxiliary box shift actuator 5 of the GSU.

[0035] In this embodiment, both the first fastener 14 and the second fastener 15 are fastening screws, and a nut and a washer are provided between the first fastener 14 and the first positioning slide sleeve 131, and a nut and a washer are provided between the second fastener 15 and the second positioning slide sleeve 161. The first fastener 14 and the second fastener 15 are located on the opposite inner sides of the first positioning slide sleeve 131 on the main gear shift block positioning slide 13 and the second positioning slide sleeve 161 on the auxiliary gear shift fork shaft positioning slide 16, respectively. The other end of the main gear shift block positioning slide 13 is provided with a first arc segment 132 that is compatible with the main gear shift block 7 on the gearbox. The other end of the auxiliary gear shift fork shaft positioning slide 16 is provided with a second arc segment 162 that is compatible with the auxiliary gear shift fork shaft 9 on the gearbox.

[0036] The utility model is an auxiliary installation device for the integrated transmission shift actuator of a commercial vehicle. The purpose is to enable the integrated AMT to more accurately locate the positions of the auxiliary box shift fork shaft 9 and the main box shift block 7 during the assembly of the GSU and the transmission body, thereby improving the assembly efficiency and success rate, and overcoming the shortcomings of the prior art that the gear selection and shifting cannot be performed normally due to the inappropriate installation position, and the technical problem that the positioning accuracy of the auxiliary box shift fork shaft 9 and the main box shift block 7 is high and cannot be accurately adjusted by visual inspection.

[0037] The specific use method of the utility model of the auxiliary installation device of the integrated transmission shift actuator of a commercial vehicle is as follows:

[0038] Step 1: First, insert one end of the first cylindrical sheath 11 and one end of the second cylindrical sheath 12 on the bottom plate 10 into the third screw hole 6 and the fourth screw hole 8 on the gearbox respectively;

[0039] Step 2: After the main gear shift block positioning slide 13 is brought into contact with the main gear shift block 7 on the gearbox, the main gear shift block positioning slide 13 and the second positioning slide sleeve 131 outside the main gear shift block are fastened in place using the first fastener 14;

[0040] Step 3: After the auxiliary box shift fork shaft positioning slide 16 is brought into contact with the auxiliary box shift fork shaft 9 on the gearbox, the auxiliary box shift fork shaft positioning slide 16 is fastened to the first positioning slide sleeve 161 outside of the auxiliary box shift fork shaft using the second fastener 15; after positioning, the current position state of the auxiliary box shift fork shaft 9 and the main box shift block 7 is obtained, that is, the axial length of the sliding main box shift block positioning slide 13 and the auxiliary box shift fork shaft positioning slide 16;

[0041] Step 4: Insert the other end of the first cylindrical sheath 11 and the other end of the second cylindrical sheath 12 on the bottom plate 10 into the first screw hole 2 and the second screw hole 4 of the GSU bottom plate on the GSU respectively;

[0042] Step 5: Adjust the positions of the shift paddle 1 on the GSU and the auxiliary gear shift actuator 5 according to the axial lengths of the sliding main gear shift block positioning slide 13 and the auxiliary gear shift fork shaft positioning slide 16 obtained in step 3;

[0043] Step 6: Remove the auxiliary installation device of the utility model, and then install the gearbox and GSU.

Claims

1. A commercial vehicle integrated transmission gear selector and shift actuator auxiliary installation device, used to assist in installing the GSU on the transmission, characterized by: The invention comprises a base plate (10), a first cylindrical sheath (11) and a second cylindrical sheath (12) arranged on the base plate (10), a side plate (17) vertically connected to one side of the base plate (10), a main gear shift block positioning slide rod (13), a secondary gear shift fork shaft positioning slide rod (16), a first fastener (14) and a second fastener (15); Both ends of the first cylindrical sheath (11) and the second cylindrical sheath (12) extend out of both sides of the base plate (10), and one end of the first cylindrical sheath (11) is used to be inserted into the third screw hole (6) on the gearbox, and the other end is used to be inserted into the first screw hole (2) on the GSU base plate (3); one end of the second cylindrical sheath (12) is used to be inserted into the fourth screw hole (8) on the gearbox, and the other end is used to be inserted into the second screw hole (4) on the GSU base plate (3), and the outer diameters of the first cylindrical sheath (11) and the second cylindrical sheath (12) are both smaller than the inner diameters of the first screw hole (2) and the second screw hole (4) on the GSU base plate (3) and the inner diameters of the third screw hole (6) and the fourth screw hole (8) on the gearbox; A first positioning slide rod sleeve (131) cooperating with the main gear shift block positioning slide rod (13) is provided on one end of the side wall of the side plate (17) away from the bottom plate (10), and a second positioning slide rod sleeve (161) cooperating with the auxiliary gear shift fork shaft positioning slide rod (16) is provided on the other end; axial long strip holes are respectively provided on the side walls of the first positioning slide rod sleeve (131) and the second positioning slide rod sleeve (161); One end of the main gear shift block positioning slide rod (13) is slidably connected to the first positioning slide rod sleeve (131), and the other end is used to abut against the shift paddle (1) of the GSU or the main gear shift block (7) on the gearbox; one end of the auxiliary gear shift fork shaft positioning slide rod (16) is slidably connected to the second positioning slide rod sleeve (161), and the other end is used to abut against the auxiliary gear shift actuator (5) of the GSU or the auxiliary gear shift fork shaft (9) on the gearbox; The first fastener (14) passes through the axial long hole on the first positioning slide sleeve (131) and is connected to the main box shift block positioning slide (13); the second fastener (15) passes through the axial long hole on the side wall of the second positioning slide sleeve (161) and is connected to the auxiliary box shift fork shaft positioning slide (16).

2. The auxiliary installation device for the integrated transmission shift actuator of a commercial vehicle according to claim 1, characterized in that: The lengths of the first cylindrical sheath (11) and the second cylindrical sheath (12) are both smaller than the depths of the first screw hole (2), the second screw hole (4), the third screw hole (6) and the fourth screw hole (8).

3. The auxiliary installation device for the integrated transmission shift actuator of a commercial vehicle according to claim 2, characterized in that: The side panel (17) includes a first side panel (171) and a second side panel (172) vertically connected to one side of the bottom panel (10), and a connecting panel for connecting the first side panel (171) and the second side panel (172); One end of the first positioning slide rod sleeve (131) is fixedly connected to the side wall of the first side plate (171) away from the bottom plate (10), and the other end is slidably connected to one end of the main box shift block positioning slide rod (13); One end of the second positioning slide rod sleeve (161) is fixedly connected to the side wall of the second side plate (172) away from the bottom plate (10), and the other end is slidably connected to one end of the auxiliary box fork shaft positioning slide rod (16).

4. The auxiliary installation device for the integrated transmission shift actuator of a commercial vehicle according to claim 3, characterized in that: Nuts and washers are provided between the first fastener (14) and the first positioning slide rod sleeve (131), and between the second fastener (15) and the second positioning slide rod sleeve (161).

5. The auxiliary installation device for the integrated transmission shift actuator of a commercial vehicle according to claim 4, characterized in that: The main box shift block positioning slide bar (13) is perpendicular to the first side plate (171); The auxiliary box shift fork shaft positioning slide bar (16) is perpendicular to the second side plate (172).

6. The auxiliary installation device for the integrated transmission shift actuator of a commercial vehicle according to claim 5, characterized in that: The first fastener (14) and the second fastener (15) are respectively located on opposite sides of the first positioning slide rod sleeve (131) and the second positioning slide rod sleeve (161).

7. The auxiliary installation device for a commercial vehicle integrated transmission shift actuator according to any one of claims 1 to 6, characterized in that: The other end portion of the main box shift block positioning slide rod (13) is provided with a first arc segment (132) adapted to the main box shift block (7).

8. The auxiliary installation device for a commercial vehicle integrated transmission shift actuator according to any one of claims 1 to 6, characterized in that: The other end portion of the auxiliary box shift fork shaft positioning slide rod (16) is provided with a second arc segment (162) adapted to the auxiliary box shift fork shaft (9).

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