Gearbox auxiliary box dismounting bracket

Abstract

The utility model provides a transmission sub -box dismounts bracket, including bottom plate and the side plate of setting on bottom plate, bottom plate is used for with transmission sub -box's bottom bracket position fixed on the dolly, the side plate is used for transmission sub -box's output shaft flange fixedly position, through drive the mode of dolly's back and forth movement, make transmission sub -box separate from transmission main box. The utility model is used for maintaining CTM131, CTM132, CTM133 and CTM134 series vehicle's transmission sub -box, can in not disassembling cab and transmission assembly's condition, in the condition of not having large -scale hoist and machine tool equipment, in the process of army mobile marching and under the field condition, transmission sub -box can be individually taken out from transmission assembly and maintain, make the maintenance of transmission sub -box convenient and efficient.

Description

Technical Field

[0001] This utility model relates to the field of transmission auxiliary gearbox repair technology, specifically to a transmission auxiliary gearbox disassembly and assembly bracket. Background Technology

[0002] The statements herein provide only background information related to this invention and do not necessarily constitute prior art.

[0003] Based on the medium and high-speed train models issued to the military, when the mileage of models produced before 2016 is 30,000 to 40,000 kilometers, and when the mileage of models produced after 2016 is 15,000 to 20,000 kilometers, gear grinding is likely to occur when shifting from 5th to 6th gear in the auxiliary gearbox. During routine maintenance, it was found that this was mainly caused by damage to the high and low gear synchronizer rings and synchronizer cones in the auxiliary gearbox of the CTM131, CTM132, CTM133 and CTM134 series models. If not repaired in time, it will cause damage to the auxiliary gearbox assembly.

[0004] However, currently, when repairing the high and low gear synchronizer rings and synchronizer cones in the auxiliary gearbox of the aforementioned series of vehicles, it is necessary to first lift off the cab assembly, remove the transmission assembly, and then remove the auxiliary gearbox from the transmission assembly for repair. This method of repair is time-consuming, difficult to disassemble, and has low repair efficiency.

[0005] To address this issue, the present invention provides a transmission auxiliary gearbox disassembly and assembly bracket. Utility Model Content

[0006] The main purpose of this utility model is to provide a transmission auxiliary gearbox disassembly and assembly bracket for repairing transmission auxiliary gearboxes of CTM131, CTM132, CTM133 and CTM134 series vehicles, which can shorten vehicle troubleshooting time and improve transmission auxiliary gearbox repair efficiency.

[0007] To achieve the above objectives, the technical solution of this utility model is as follows: a transmission auxiliary gearbox disassembly and assembly bracket includes a base plate and side plates disposed on the base plate. The base plate is used to position and fix the bottom bracket of the transmission auxiliary gearbox on the trolley, and the side plates are used to position and fix the output shaft flange of the transmission auxiliary gearbox. By driving the trolley to move back and forth, the transmission auxiliary gearbox is detached from the transmission main gearbox.

[0008] Furthermore, the side plate is disposed on the side of the bottom plate, and the bottom plate and the side plate are perpendicular to each other.

[0009] Furthermore, a first positioning hole is provided on the base plate, and a second bolt is inserted into the bottom bracket of the transmission auxiliary box. The bottom of the second bolt passes through the first positioning hole and is screwed into the corresponding screw hole on the top of the trailer.

[0010] Furthermore, a fourth positioning hole is provided on the base plate, and a first bolt is provided at the bottom of the base plate that is threaded into the fourth positioning hole. The top of the first bolt abuts against the bottom bracket of the transmission auxiliary box.

[0011] Furthermore, a second positioning hole is provided on the side plate for the output shaft of the transmission auxiliary gearbox to be adapted, and a third positioning hole is provided on the side plate. A third bolt is inserted into the third positioning hole, and the relative position between the side plate and the output shaft flange of the transmission auxiliary gearbox is locked by the third bolt.

[0012] Furthermore, the number of the third positioning holes is four, and they are equidistantly distributed along the circumference of the second positioning holes.

[0013] Furthermore, a reinforcing plate is provided at the connection between the base plate and the side plate.

[0014] The beneficial effects of this utility model are reflected in: This utility model relates to a transmission auxiliary gearbox disassembly and assembly bracket, which is used for repairing the transmission auxiliary gearboxes of CTM131, CTM132, CTM133 and CTM134 series vehicles. It enables the transmission auxiliary gearbox to be removed from the transmission assembly for repair without disassembling the cab and transmission assembly, without the need for large lifting tools and equipment, during troop movement and in field conditions, making the repair of the transmission auxiliary gearbox convenient and efficient. Attached Figure Description

[0015] In the attached diagram: Figure 1 This is a three-dimensional structural diagram of the entire utility model; Figure 2 for Figure 1 A schematic diagram of the overall structure from below.

[0016] Explanation of reference numerals in the attached figures: 1. Base plate; 101. First bolt; 102. First positioning hole; 103. Fourth positioning hole; 2. Side plate; 201. Second positioning hole; 202. Third positioning hole; 3. Reinforcing plate. Detailed Implementation

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. Obviously, the described embodiments are only a part of the embodiments of the utility model, and not all of them. Unless otherwise specified, the embodiments and features described in this application can be combined with each other. All other embodiments obtained by those skilled in the art based on the embodiments of the utility model without creative effort are within the scope of protection of the utility model.

[0018] Please combine Figures 1 to 2 .

[0019] The transmission auxiliary housing disassembly and assembly bracket includes a base plate 1 and a side plate 2 disposed on the base plate 1. The base plate 1 is used to position and fix the bottom bracket of the transmission auxiliary housing on the trolley (not shown in the figure), and the side plate 2 is used to position and fix the output shaft flange of the transmission auxiliary housing. By driving the trolley to move back and forth, the transmission auxiliary housing is detached from the transmission main housing.

[0020] The trailer can move forward and backward and its height can be adjusted. As this is prior art, this application will not elaborate further on it.

[0021] In practice, the base plate 1 is first placed close to the bottom bracket of the transmission auxiliary gearbox, and the bottom bracket of the transmission auxiliary gearbox is positioned and fixed on the top of the trailer. Then, the corresponding bolts between the transmission auxiliary gearbox and the main gearbox are removed, so that the side plate 2 is placed close to and fixed to the output shaft flange of the transmission auxiliary gearbox. The base plate 1 is moved back and forth by driving the trailer to detach the transmission auxiliary gearbox from the main gearbox. Then, the lifting height of the trailer is adjusted and lowered to detach the transmission auxiliary gearbox from the vehicle body so that the transmission auxiliary gearbox can be repaired separately.

[0022] The advantage of this design is that the auxiliary transmission gearbox used for repairing CTM131, CTM132, CTM133 and CTM134 series vehicles can be removed from the transmission assembly for repair without disassembling the cab and transmission assembly, without the need for large lifting tools and equipment, during troop movement and in field conditions, making the repair of the auxiliary transmission gearbox convenient and efficient.

[0023] In one embodiment, the side plate 2 is disposed on the side of the bottom plate 1, and the bottom plate 1 and the side plate 2 are perpendicular to each other to adapt to the bottom side of the transmission auxiliary gearbox and the position of the output shaft flange.

[0024] In this embodiment, the base plate 1 and the side plate 2 are connected by welding, and a reinforcing plate 3 is provided at the connection between the base plate 1 and the side plate 2 to improve the structural strength between the base plate 1 and the side plate 2.

[0025] In one embodiment, a first positioning hole 102 is provided on the base plate 1, and a second bolt is inserted into the bottom bracket of the gearbox auxiliary box. The bottom of the second bolt passes through the first positioning hole 102 and is screwed into the corresponding screw hole on the top of the trailer.

[0026] Thus, by using the second bolt from top to bottom, the bottom of the second bolt sequentially passes through the bottom bracket of the transmission auxiliary box and the first positioning hole 102, and is then screwed into the corresponding screw hole on the top of the trailer, the bottom bracket of the transmission auxiliary box, the base plate 1, and the trailer are fixed together.

[0027] In one embodiment, a fourth positioning hole 103 is provided on the base plate 1, and a first bolt 101 is provided at the bottom of the base plate 1 that is threaded into the fourth positioning hole 103. The top of the first bolt 101 abuts against the bottom bracket of the transmission auxiliary box.

[0028] Thus, by screwing the first bolt 101 into the fourth positioning hole 103 at the bottom of the base plate 1, the top of the first bolt 101 passes through the base plate 1 and presses against the bottom bracket of the transmission auxiliary box, preventing the bottom bracket of the transmission auxiliary box from shaking when it is moved away from the transmission main box, thus avoiding the situation where the transmission auxiliary box tilts and shifts, making disassembly and assembly difficult.

[0029] In one embodiment, the side plate 2 has a second positioning hole 201 for the output shaft of the transmission auxiliary gearbox to be fitted, and a third positioning hole 202 is provided on the side plate 2. A third bolt is inserted into the third positioning hole 202, and the relative position between the side plate 2 and the output shaft flange of the transmission auxiliary gearbox is locked by the third bolt.

[0030] Preferably, there are four third positioning holes 202, which are equidistantly distributed around the second positioning holes 201.

[0031] Thus, the side plate 2 is placed close to the output shaft of the transmission auxiliary gearbox, so that the output shaft passes through the second positioning hole 201, and then the third bolt is used to pass through the third positioning hole 202 to connect with the screw hole of the output shaft flange of the transmission auxiliary gearbox, so as to complete the position fixation of the output shaft flange of the transmission auxiliary gearbox on the side plate 2.

[0032] In summary, the working principle of this embodiment is as follows: S1. The second bolt is screwed into the corresponding screw hole on the top of the trailer in a top-down manner, so that the bottom of the second bolt passes through the bottom bracket of the transmission auxiliary box and the first positioning hole 102 in sequence, thereby fixing the bottom bracket of the transmission auxiliary box, the base plate 1 and the trailer. S2. Position the base plate 1 of the transmission auxiliary gearbox mounting bracket at the bottom of the transmission auxiliary gearbox bracket, and position the side plate 2 at the flange of the transmission auxiliary gearbox output shaft, ensuring that the second positioning hole 201 corresponds to the transmission auxiliary gearbox output shaft and the third positioning hole 202 corresponds to the positioning hole on the flange. S3. Remove all fixing bolts of the transmission auxiliary box on the transmission main box, and screw the third bolt through the third positioning hole 202 into the positioning hole on the flange to complete the position fixing of the transmission auxiliary box output shaft flange on the side plate 2. S4. By screwing the first bolt 101 into the fourth positioning hole 103 at the bottom of the base plate 1, the top of the first bolt 101 passes through the base plate 1 and abuts against the bottom wall of the bottom bracket of the transmission auxiliary box, so as to prevent the bottom bracket of the transmission auxiliary box from shaking when it is moved away from the transmission main box in the future, which would cause the transmission auxiliary box to tilt and shift, making disassembly and assembly difficult. S5. Move the base plate 1 and the bottom bracket of the transmission auxiliary box forward or backward by using a trailer to detach the transmission auxiliary box from the transmission main box. Then adjust and lower the lifting height of the trailer to detach the transmission auxiliary box from the vehicle body for separate maintenance.

[0033] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

[0034] It should be noted that if the utility model embodiment involves directional indicators (such as up and down), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0035] Furthermore, the meaning of "and / or" throughout the text includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or a solution that simultaneously satisfies A and B. Additionally, if the utility model embodiments involve descriptions of "first," "second," etc., these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first" or "second" can explicitly or implicitly include at least one of those features. Furthermore, "multiple" refers to two or more. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by the utility model.

Claims

1. A transmission auxiliary gearbox disassembly and assembly bracket, characterized in that, It includes a base plate (1) and a side plate (2) disposed on the base plate (1). The base plate (1) is used to position and fix the bottom bracket of the transmission auxiliary box on the trolley, and the side plate (2) is used to position and fix the output shaft flange of the transmission auxiliary box. The transmission auxiliary box is detached from the transmission main box by driving the trolley to move back and forth.

2. The transmission auxiliary gearbox disassembly bracket as described in claim 1, characterized in that, The side plate (2) is disposed on the side of the bottom plate (1), and the bottom plate (1) and the side plate (2) are perpendicular to each other.

3. The transmission auxiliary gearbox disassembly bracket as described in claim 1, characterized in that, The base plate (1) has a first positioning hole (102), and a second bolt is inserted into the bottom bracket of the gearbox. The bottom of the second bolt passes through the first positioning hole (102) and is screwed into the corresponding screw hole on the top of the trailer.

4. The transmission auxiliary gearbox disassembly bracket as described in claim 1, characterized in that, The base plate (1) is provided with a fourth positioning hole (103), and the bottom of the base plate (1) is provided with a first bolt (101) that is threadedly engaged with the fourth positioning hole (103). The top of the first bolt (101) abuts against the bottom bracket of the transmission auxiliary box.

5. The transmission auxiliary gearbox disassembly bracket as described in claim 1, characterized in that, The side plate (2) has a second positioning hole (201) for the output shaft of the transmission auxiliary box to be adapted, and a third positioning hole (202) is provided on the side plate (2). A third bolt is inserted into the third positioning hole (202) and the relative position between the side plate (2) and the output shaft flange of the transmission auxiliary box is locked by the third bolt.

6. The transmission auxiliary gearbox disassembly bracket as described in claim 5, characterized in that, The number of the third positioning holes (202) is four, and they are equidistantly distributed along the circumference of the second positioning holes (201).

7. The transmission auxiliary gearbox disassembly bracket as described in claim 1, characterized in that, A reinforcing plate (3) is provided at the connection between the base plate (1) and the side plate (2).

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