CN204658353U - The provision for disengagement of automatic gear-box snap ring - Google Patents

Abstract

The utility model relates to a dismantling device for a snap ring of an automatic gearbox. It comprises a left and right spiral screw, one end of the left and right spiral screw is fixed with a rotating handle, and the other end of the left and right spiral screw is provided with a lower thread segment and an upper thread segment in sequence in the middle, and the thread direction of the lower thread segment and the upper thread segment are opposite. A grip ring is sheathed on the left and right spiral screw rod between the rotating handle and the upper threaded section. There is an upper nut on the upper threaded section, and a lower nut on the lower threaded section. The upper nut is evenly hinged with claws along its circumference. The clamping ends of the claws are all corresponding to the lower threaded section. A connecting rod is hinged at the position corresponding to the claw body on the cap, and the end of the connecting rod away from the lower nut is hinged with the middle part of the corresponding claw body. Use this device to disassemble the snap ring in the automatic transmission, the working process is relatively simple, the time required is shorter, the manpower consumption is less, and the casing will not be scratched during the disassembly process, and the disassembled snap ring can be reused use.

Description

Automatic transmission snap ring removal device

technical field

The utility model relates to a dismantling device, in particular to a dismantling device for a snap ring of an automatic transmission.

Background technique

It is well known in the gearbox production industry that when an automatic gearbox on a car and other products is defective during production and use, the snap ring in it needs to be disassembled for maintenance and inspection.

At present, the method used in the industry to remove the inner snap ring of the automatic transmission is to use an ordinary flat-head screwdriver to extend along the notch on the inner wall of the automatic transmission case to the outer periphery where the snap ring is, and pull the snap ring little by little. Tilt outward until the snap ring is completely lifted out of the housing; or after the snap ring partly leaves the housing, use special pliers to clamp the section of the snap ring and pull the snap ring out completely. However, no matter whether the snap ring is completely tilted out, or a part of it is tilted out, the work process of pulling it out with pliers is more complicated, takes longer time and consumes more manpower. At the same time, since these two methods all need to use a flathead screwdriver to tilt the snap ring, the shell will be scratched, and the stress on each part of the snap ring will be uneven during the warping process, which will deform the snap ring and make it impossible to use again.

Utility model content

The technical problem to be solved by the utility model is to provide a device for disassembling snap rings of automatic transmissions. Using the device to disassemble the snap rings in automatic transmissions, the working process is relatively simple, the time required is short, and the manpower consumed is less , and the shell will not be scratched during the disassembly process, and the disassembled snap ring can be used again.

In order to solve the above problems, the following technical solutions are provided:

The feature of the automatic transmission clasp ring dismantling device of the utility model is that it comprises a left and right spiral screw, one end of the left and right spiral screw is fixed with a rotating handle, and the other end of the left and right spiral screw is provided with a lower thread section and an upper thread section in sequence from the middle to the middle. The threads of the threaded section and the upper threaded section have opposite directions of rotation. The section between the rotating handle and the upper thread section is covered with a hand ring, and the hand ring and the left and right screw rods are axially fixed and circumferentially rotated. There is an upper nut on the upper threaded section, and a lower nut on the lower threaded section. A claw body is uniformly hinged on the upper nut along its circumference, and the clamping ends of the claw body correspond to the lower threaded section. Connecting rods are hinged at positions corresponding to the claws on the lower nut, and the ends of the connecting rods away from the lower nut are hinged with the middle of the corresponding claws.

A further improvement to the utility model is that there is a shell positioning plate group on the lower nut between the connecting rod and the end of the left and right screw rod away from the rotating handle, and the shell positioning plate group includes two shell positioning plate units, and the two shell positioning plates The plate units are respectively located on a group of radially opposite outer peripheral surfaces of the lower nut, and the outer edges of the shell positioning plate units have outer protrusions for snapping into the axial grooves on the inner wall of the automatic transmission case. The advantage of this improvement is that the positioning plate of the housing can be used to limit the position, so as to avoid the situation that the device shakes left and right when the snap ring is disassembled.

Adopting the above scheme has the following advantages:

Because the automatic transmission snap ring dismantling device of the present utility model comprises a left and right screw rod, a rotating handle, a hand grip ring, an upper nut, and a lower nut are arranged on the left and right screw rods, and the screw thread of the left and right screw rods opposite to the upper nut is The thread direction of the left and right spiral screw rod opposite to the lower nut is opposite. The upper nut is evenly hinged with a claw body along its circumference, and the lower nut is hinged with a connecting rod at the position corresponding to the claw body. The connecting rod The end away from the lower nut is hinged with the middle part of the corresponding claw body. When in use, hold the hand grip ring first, and extend the clamping end of the claw body along the axial groove on the inner wall of the automatic transmission case to the outer periphery where the snap ring is located. Then, turn the rotary handle so that the upper nut moves to the end of the left and right screw rods close to the rotary handle, and the lower nut moves to the end of the left and right screw rods away from the rotary handle, thereby driving each connecting rod to tighten the corresponding claw body at the same time. The claws compress the snap ring so that the snap ring shrinks, and the device together with the snap ring can be taken out of the automatic transmission case. Finally, turn the rotary handle in the opposite direction to make the claws open, and then remove the snap ring. The whole disassembly process is relatively simple, requires less time, and reduces manpower consumption. At the same time, there is no need to use a flat-head screwdriver to warp the snap ring, thereby avoiding the scratches on the automatic transmission case during the warping of the snap ring, and because the claws are evenly distributed, the snap ring is integral during disassembly Strong, not easy to deform, so that the disassembled snap ring can be used again.

Description of drawings

Fig. 1 is the structural representation of the automatic transmission snap ring dismantling device of the present utility model;

Fig. 2 is a schematic diagram of the automatic transmission clasp ring removal device of the present invention in use.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is described in further detail.

As shown in Figure 1, the automatic transmission snap ring dismantling device of the present utility model comprises a left and right spiral screw 1, one end of the left and right spiral screw 1 is fixed with a rotating handle 2, and the other end of the left and right spiral screw 1 is provided with a lower screw thread in the middle. The helical directions of the segment 10 and the upper threaded segment 5, and the lower threaded segment 10 and the upper threaded segment 5 are opposite. A bearing 4 is arranged on the left and right screw rod 1 between the rotary handle 2 and the upper threaded segment 5, the inner ring of the bearing 4 is fixed on the left and right screw rod 1, and the outer ring of the bearing 4 is fixed with a hand ring 3 . The upper threaded section 5 is provided with an upper nut 6, the lower threaded section 10 is provided with a lower nut 11, and the upper nut 6 is uniformly hinged with claws 7 along its circumference, and the clamping of the claws 7 The ends are all corresponding to the lower threaded section 10, and the position corresponding to the claw body 7 on the lower nut 11 is hinged with a connecting rod 8, and the end of the connecting rod 8 away from the lower nut 11 is connected to the middle part of the corresponding claw body 7. hinged together. The lower nut 11 between the connecting rod 8 and the end of the left and right screw 1 away from the rotating handle 2 is provided with a shell positioning plate group, the shell positioning plate group includes two shell positioning plate units 9, two shell positioning plate units 9 are respectively located on a group of radially opposite outer peripheral surfaces of the lower nut 11, and the outer edges of the housing positioning plate unit 9 are provided with holes for snapping into the axial grooves (13) on the inner wall of the automatic transmission case 15 Outer protrusion 12.

When in use, hold the hand grip ring 3 first, use the shell positioning plate unit 9 to position, and extend the clamping end of the claw body 7 along the axial groove 13 of the inner wall of the automatic transmission case 15 to the place where the snap ring 14 is located. Perimeter, as shown in Figure 2. Then, turn the rotary handle 2, so that the upper nut 6 moves to the end of the left and right screw rod 1 close to the rotary handle 2, and the lower nut 11 moves to the left and right screw rod 1 away from the end of the rotary handle 2, thereby driving each connecting rod 8 At the same time, the corresponding claw body 7 is tightened, and the claw body 7 compresses the snap ring 14, so that the snap ring 14 shrinks, and the device can be taken out of the automatic transmission case 15 together with the snap ring 14 . Finally, turn the rotary handle 2 in the opposite direction, so that the claw body 7 is opened, and then the snap ring 14 can be removed.

Claims (2)

1. automatic gear-box snap ring provision for disengagement, it is characterized in that comprising left-right rotary screw rod (1), one end of left-right rotary screw rod (1) is fixed with rotating handles (2), the other end of left-right rotary screw rod (1) is to being disposed with lower thread segment (10) and upper thread segment (5) in the middle part of it, and the thread rotary orientation of lower thread segment (10) and upper thread segment (5) is contrary; The upper cover of that section of left-right rotary screw rod (1) between described rotating handles (2) and upper thread segment (5) has hand to grab ring (3), and it is axial restraint that hand is grabbed between ring (3) with left-right rotary screw rod (1), circumference is rotated shape and coordinated; Described upper thread segment (5) there is upper cap nut (6), lower thread segment (10) there is lower nut (11), described upper cap nut (6) is evenly hinged with corpus unguis (7) along its circumference, the bare terminal end of corpus unguis (7) is all corresponding with lower thread segment (10), the position of the upper corresponding corpus unguis (7) of described lower nut (11) is all hinged with connecting rod (8), and connecting rod (8) is all hinged with corresponding corpus unguis (7) middle part away from that one end of lower nut (11).

2. automatic gear-box snap ring provision for disengagement as claimed in claim 1, it is characterized in that described connecting rod (8) and left-right rotary screw rod (1) away from rotating handles (2) that one end between lower nut (11) on have shell location-plate group, shell location-plate group comprises two shell location-plate unit (9), two shell location-plate unit (9) lay respectively on one group of lower nut (11) outer peripheral face diametrically, the outward flange of shell location-plate unit (9) all have the outer lug (12) for snapping onto in the axial notch (13) of automatic transmission casing (15) inwall.