CN211574168U - A two-stop box - Google Patents

Abstract

The utility model discloses a two keep off case, including the shell, its characterized in that: one side of the shell is provided with a power input shaft, the top of the shell is respectively provided with a sealing ring and a box cover, the top of the box cover is provided with a handle, the other side of the shell is provided with a power output shaft and a gear shift lever, the bottom of the shell is provided with a bottom plate, both sides of the bottom plate are provided with mounting plates, the bottom of the bottom plate is provided with a buffer cushion, the inside of the shell is respectively provided with a support frame, a first-gear driven gear and a driving shaft, one side of the first-gear driven gear is provided with a second-gear driven gear, one side of the power input shaft is provided with a driving gear, the outer wall of the driving, the utility model discloses a one that sets up keeps off the driving gear, keeps off driven gear, keeps off the driving gear, keeps off driven gear and synchronization disc and has solved the current problem that work is more complicated of keeping off the case and shifting.

Description

A two-stop box

technical field

The utility model belongs to the technical field of second-gear boxes, in particular to a second-gear box.

Background technique

The existing common transmission device for locomotive traction is the second gear box, which is mainly divided into two categories: hydraulic shifting and mechanical shifting. Hydraulic shifting mainly adopts a multi-cycle circular mechanism. ” and “drain oil” to achieve gear shifting; mechanical gear shifting, after the main clutch is disengaged, the power flow is disconnected, and in this state, each gear clutch is selectively engaged according to the transmission ratio requirements, thereby realizing the shifting function.

The existing second gear box has poor sealing performance, and it is easy for external dust and water to enter the inside of the second gear box, thereby corroding the gears inside the second gear box and reducing the service life of the second gear box. The method is more complicated, thereby reducing the shift rate of the existing second-gear box. For this reason, we propose a second-gear box.

Utility model content

The purpose of the present utility model is to provide a second gear box to solve the problems of poor sealing performance and slow shifting speed proposed in the above-mentioned background art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: a second gear box, comprising a casing, characterized in that: a power input shaft is arranged on one side of the casing, and a sealing ring and a casing are respectively arranged on the top of the casing The top of the box cover is provided with a handle, the other side of the casing is provided with a power output shaft and a gear lever, the bottom of the casing is provided with a bottom plate, and both sides of the bottom plate are provided with mounting plates, so A buffer pad is arranged at the bottom of the bottom plate, a support frame, a first-speed driven gear and a driving shaft are respectively arranged inside the casing, and a second-speed driven gear is arranged on one side of the first-speed driven gear. One side of the input shaft is provided with a driving gear, the outer wall of the driving shaft is respectively provided with a driven gear, a first-speed driving gear and a second-speed driving gear, the inside of the support frame is provided with a bearing, and the outer wall of the power output shaft is provided with a driven gear, a first-speed driving gear and a second-speed driving gear. A synchronizing disk is respectively provided, the two sides of the synchronizing disk are respectively provided with a rubber pad and a tenon, and the inner part of the synchronizing disk is provided with a shaft center hole.

Both sides of the synchronous disc are respectively provided with rubber pads and tenons, and the interior of the synchronous disc is provided with a shaft center hole.

Preferably, the box cover is composed of a box cover body and a handle, and the inner diameter of the box cover is equal to the outer diameter of the casing, and the box cover is fixedly connected to the casing.

Preferably, two mounting plates are provided, and the two mounting plates are respectively located on both sides of the bottom plate, and the mounting plates are connected to the bottom plate by welding.

Preferably, the buffer pad is located at the bottom of the bottom plate, and the portion of the buffer pad located on the mounting plate is provided with a circular opening, and at the same time, the buffer pad and the bottom plate are bonded by glue.

Preferably, four bearings are provided, and the four bearings are respectively located at the intersection positions of the support frame, the driving shaft and the power output shaft, and the bearings are embedded in the support frame.

Preferably, the tenons are evenly distributed on both sides of the synchronizing disk, and the tenons are arranged in a circular shape, and at the same time, the tenons are fixedly connected to the synchronizing disk.

Compared with the prior art, the beneficial effects of the present utility model are:

1. This kind of second-stop box solves the problem of poor sealing performance of the second-stop box by setting the buffer pad, sealing ring and box cover. During the operation of the device, a large vibration force will be generated. It can absorb part of the vibration force from the bottom plate through its own structural compression, thereby reducing the risk of loosening the mounting plate and improving the stability of the second gear box. The sealing ring is located at the intersection of the box cover and the outer shell. When the box cover is spliced together, a moving force will be formed, and the structure of the sealing ring will be deformed, thereby filling the splicing gap between the box cover and the outside, thereby increasing the airtightness between the box cover and the outer shell, avoiding external dust and water. The inside of the casing is entered through the gap between the casing and the box cover, so that the internal components of the casing are prevented from being eroded by dust and water, which is beneficial to improve the service life of the second gear box.

2. This kind of second gear box solves the problem that the gear shifting rate of the device is relatively slow by setting the power input shaft, power output shaft, synchronous disc and driving shaft. During the operation of the device, the power input shaft will be driven by external force. The high-speed rotation drives the driving gear to run at a high speed. At this time, the driving gear will drive the driven gear to rotate through the teeth on the outer wall. Since the driven gear is located on the driving shaft, the driven gear will also drive the first gear on the driving shaft. And the second-speed driving gear rotates at high speed. Similarly, the first-speed driving gear and the second-speed driving gear will also drive the first-speed driven gear and the second-speed driven gear to rotate at a high speed through the teeth on the outer wall. It is only necessary to operate the shift lever to make the tenon on the synchronous disc mesh with the tenon groove on the first gear driven gear, so that the first gear driven gear drives the power output shaft on the synchronous disc to rotate together. At this time, the second gear box The gear position of the second gear is changed from neutral to first gear. The method is simple and quick, increases the shifting rate of the second gear box, and is conducive to simplifying the gear shifting process of the second gear box.

Description of drawings

Fig. 1 is the overall structure schematic diagram of the present utility model;

Fig. 2 is the sectional view of the second gear box of the utility model;

FIG. 3 is a schematic diagram of the partial structure of the synchronization disk of the present invention.

In the figure: 1, housing; 101, driving shaft; 1011, driven gear; 1012, first gear driving gear; 1013, second gear driving gear; 102, support frame; 1021, bearing; 103, second gear driven gear; 104 , the first gear driven gear; 2, the power input shaft; 3, the box cover; 4, the handle; 5, the sealing ring; 6, the power output shaft; 601, the synchronous disc; 6011, the rubber pad; Heart hole; 7. Gear lever; 8. Bottom plate; 9. Cushion pad; 10. Mounting plate.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

Please refer to FIG. 1 to FIG. 3 , the present utility model provides a technical solution for a second-gear box: a second-gear box includes an outer casing 1 , a power input shaft 2 is arranged on one side of the outer casing 1 , and a seal is respectively arranged on the top of the outer casing 1 The ring 5 and the box cover 3, the top of the box cover 3 is provided with a handle 4, the other side of the housing 1 is provided with a power output shaft 6 and a gear lever 7, the bottom of the housing 1 is provided with a bottom plate 8, and both sides of the bottom plate 8 are provided There is a mounting plate 10, a buffer pad 9 is arranged at the bottom of the bottom plate 8, a support frame 102, a first-speed driven gear 104 and a driving shaft 101 are respectively arranged inside the casing 1, and a second-speed gear is arranged on one side of the first-speed driven gear 104. The driven gear 103, the driving gear 201 is provided on one side of the power input shaft 2, the driven gear 1011, the first-speed driving gear 1012 and the second-speed driving gear 1013 are respectively provided on the outer wall of the driving shaft 101, and the inside of the support frame 102 is provided with The bearing 1021 and the outer wall of the power output shaft 6 are respectively provided with a synchronizing disk 601 , both sides of the synchronizing disk 601 are respectively provided with a rubber pad 6011 and a tenon 6012 , and a shaft center hole 6013 is provided inside the synchronizing disk 601 .

In this embodiment, preferably, the box cover 3 is composed of the main body of the box cover 3 and the handle 4, and the inner diameter of the box cover 3 is equal to the outer diameter of the casing 1, and the box cover 3 is fixedly connected to the casing 1. Open the box cover 3 The internal structure of the second-gear box can be exposed, so that the maintenance personnel can carry out the maintenance of the second-gear box conveniently.

In this embodiment, preferably, two mounting plates 10 are provided, and the two mounting plates 10 are located on both sides of the bottom plate 8 respectively. At the same time, the mounting plates 10 are connected to the bottom plate 8 by welding, and the mounting plate 10 can reduce the installation of the second block box. complexity of work.

In this embodiment, preferably, the buffer pad 9 is located at the bottom of the bottom plate 8, and the portion of the buffer pad 9 located on the mounting plate 10 is provided with a circular opening. Part of the shock force from the bottom plate 8 can be absorbed by its own structural compression, thereby reducing the risk of loosening of the mounting plate 10 .

In this embodiment, preferably, four bearings 1021 are provided, and the four bearings 1021 are respectively located at the handover positions of the support frame 102, the driving shaft 101 and the power output shaft 6, and the bearings 1021 are embedded in the support frame 102, and the bearings 1021 Direct contact between the driving shaft 101 , the power output shaft 6 and the support frame 102 can be avoided, thereby reducing the wear rate between the three.

In this embodiment, preferably, the tenons 6012 are evenly distributed on both sides of the synchronizing disc 601, and the tenons 6012 are arranged in a circular shape. At the same time, the tenons 6012 are fixedly connected with the synchronizing disc 601, and the tenons 6012 can be connected with the first-speed driven gears 104, 2 The tongue and groove on the block driven gear 103 are engaged with each other, which facilitates the quick connection between the three.

The working principle and use process of the utility model: after the utility model is installed, firstly check the installation, fixation and safety protection of the utility model. The gear 201 is running at high speed. At this time, the driving gear 201 will drive the driven gear 1011 to rotate through the teeth on the outer wall. At this time, the driven gear 1011 will also drive the first-speed driving gear 1012 and the second-speed driving gear 1013 on the driving shaft 101 at high speed. In the same way, the first-speed driving gear 1012 and the second-speed driving gear 1013 will also drive the first-speed driven gear 104 and the second-speed driven gear 103 to rotate at high speed through the teeth on the outer wall. It is only necessary to operate the shift lever 7 to make the tenon 6012 on the synchronous disc 601 engage with the tenon and groove on the first-speed driven gear 104, so that the first-speed driven gear 104 drives the power output shaft 6 on the synchronous disc 601 together. Rotate, at this time, the gear of the second gear box changes from neutral to first gear. Similarly, when changing the first gear to the second gear, it is only necessary to operate the shift lever 7 to make the tenon 6012 on the synchronizing plate 601 and the The tongue and groove on the second-speed driven gear 103 are engaged with each other, so that the second-speed driven gear 103 drives the power output shaft 6 on the synchronous disk 601 to rotate together. At this time, the gear of the second-speed box changes from the first gear to the first gear. In this way, the use process of the utility model is completed. The utility model has a simple structure and is safe and convenient to use.

Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes and modifications can be made to these embodiments without departing from the principles and spirit of the present invention , alternatives and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (6)

1. A second gear box, comprising a casing (1), characterized in that: a power input shaft (2) is provided on one side of the casing (1), and a sealing ring ( 5) and a box cover (3), the top of the box cover (3) is provided with a handle (4), and the other side of the casing (1) is provided with a power take-off shaft (6) and a shift lever (7), The bottom of the casing (1) is provided with a bottom plate (8), both sides of the bottom plate (8) are provided with mounting plates (10), and the bottom of the bottom plate (8) is provided with a buffer pad (9), so A support frame (102), a first-speed driven gear (104) and a driving shaft (101) are respectively provided inside the casing (1), and a second-speed driven gear (104) is provided on one side of the first-speed driven gear (104). Gear (103), one side of the power input shaft (2) is provided with a driving gear (201), the outer wall of the driving shaft (101) is respectively provided with a driven gear (1011) and a first-speed driving gear (1012) and the second-speed driving gear (1013), a bearing (1021) is provided inside the support frame (102), and a synchronizing disk (601) is respectively provided on the outer wall of the power output shaft (6), and the synchronizing disk (601) ) are respectively provided with a rubber pad (6011) and a tenon (6012), and a shaft center hole (6013) is provided inside the synchronous disc (601). 2. A two-block box according to claim 1, characterized in that: the box cover (3) is composed of a box cover (3) main body and a handle (4), and the inner diameter of the box cover (3) is equal to The outer diameter of the casing (1), and the box cover (3) is fixedly connected to the casing (1). 3. The second block box according to claim 1, characterized in that: the mounting plate (10) is provided with two pieces, and the two mounting plates (10) are respectively located on both sides of the bottom plate (8) At the same time, the mounting plate (10) is connected with the bottom plate (8) by welding. 4 . The second block box according to claim 1 , wherein the buffer pad ( 9 ) is located at the bottom of the bottom plate ( 8 ), and the buffer pad ( 9 ) is located at the part of the mounting plate ( 10 ). 5 . A circular opening is provided, and at the same time, the buffer pad (9) and the bottom plate (8) are glued together. The second gear box according to claim 1, characterized in that: the bearings (1021) are provided with four, and the four bearings (1021) are respectively located on the support frame (102) and the driving shaft ( 101), the handover position of the power output shaft (6), and the bearing (1021) is embedded in the support frame (102). 6. The second gear box according to claim 1, wherein the tenons (6012) are evenly distributed on both sides of the synchronizing disc (601), and the tenons (6012) are arranged in a circular shape, and simultaneously The tenon (6012) is fixedly connected with the synchronizing disc (601).

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