Gear shift mechanism control assembly

Abstract

The shift mechanism control assembly relates to the technical field of gearbox tools, including a housing, a horizontally arranged shift fork shaft is rotatably provided in the housing, a shift fork sleeve is fixedly connected to the shift fork shaft, a driving shift fork is rotatably provided in the housing to drive the shift fork sleeve to slide the shift fork shaft horizontally, a first operating rod connected to the driving shift fork is rotatably provided outside the housing, and a second operating rod that drives the shift fork shaft to rotate in a circumferential direction is rotatably provided outside the housing, and the first operating rod and the second operating rod are connected to the operating rod mechanism via a first shift soft cable and a second shift soft cable, respectively. The utility model solves the problem that the lower end of the operating rod in the existing cab in the traditional technology is directly connected to the shift mechanism, which makes it limited by the fixed position of the shift mechanism, so that the position of the operating rod in the cab is fixed, and it is impossible to adjust the position of the operating rod in the cab, resulting in a limited scope of use.

Description

Technical Field

[0001] The utility model relates to the technical field of gearbox tools, in particular to a gear shift mechanism control assembly. Background Art

[0002] The gearbox mainly refers to the gearbox of a car, which is divided into manual and automatic. The manual gearbox is mainly composed of gears and shafts, and produces speed and torque changes through different gear combinations; while the automatic gearbox AT is composed of a torque converter, planetary gears, a hydraulic pitch change system and a hydraulic control system. Many existing gearboxes for construction machinery are manually operated, such as tractor models, which requires the use of a shift mechanism for manual operation.

[0003] A patent with publication number CN202883988U is disclosed in the prior art. The solution includes a plastic base and a manual shift lever. A through hole that runs through the entire base is provided in the middle position of the plastic base, and a fixed connection hole is provided on one side of the plastic base. The manual shift lever adopts an integrated structure, and the manual shift lever is connected to the plastic base through the through hole. The beneficial effects are: simple structure, ingenious design, saving development costs and customer approval cycle, and reducing the overall weight of parts to achieve the purpose of reducing costs and vehicle fuel consumption.

[0004] The existing devices have gradually exposed the shortcomings of this technology with the production and use, which are mainly manifested in the following aspects:

[0005] First, the lower end of the operating lever in the existing cab is directly connected to the shift mechanism, which makes the position of the operating lever in the cab fixed due to the fixed position of the shift mechanism, and the position of the operating lever in the cab cannot be adjusted, resulting in a limited scope of use.

[0006] Secondly, since the shift fork shaft in the existing shift mechanism needs to move axially and rotate radially to achieve shifting, dust is easily introduced between the shift fork shaft and the housing, which affects the stability during operation.

[0007] In summary, the prior art obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content

[0008] In view of the defects in the prior art, the utility model provides a shift mechanism control assembly to solve the problem that the lower end of the existing operating lever in the cab is directly connected to the shift mechanism in the traditional technology, which makes the position of the operating lever in the cab fixed due to the fixed position of the shift mechanism, and the position of the operating lever in the cab cannot be adjusted, resulting in a limited scope of use; and dust is easily introduced between the fork shaft and the housing, affecting the stability during operation.

[0009] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0010] The shift mechanism control assembly includes a housing, a horizontally arranged shift fork shaft is rotatably arranged in the housing, a shift fork sleeve is fixedly connected to the shift fork shaft, and a driving shift fork is rotatably arranged in the housing for driving the shift fork sleeve to slide the shift fork shaft horizontally.

[0011] The outer part of the housing is provided with a first operating rod connected to the driving fork and a second operating rod driving the fork shaft to rotate in a circumferential direction.

[0012] The first operating lever and the second operating lever are connected to the operating lever mechanism via a first gear shift soft cable and a second gear shift soft cable respectively.

[0013] As an optimized solution, a mounting hole is horizontally opened in the shell, a mounting sleeve is rotatably provided in the mounting hole, one end of the fork shaft is slidably inserted into the inner end of the mounting sleeve, and the second operating rod is fixed to the outer end of the mounting sleeve.

[0014] As an optimized solution, annular grooves are arranged in parallel on the outer wall of the installation sleeve, a sealing ring is arranged in the annular groove, and the outer ring of the sealing ring is frictionally abutted against the installation hole.

[0015] As an optimized solution, a shaft body is provided in the shell for horizontal rotation, the driving fork is fixed to one end of the shaft body, and the other end of the shaft body extends to the outside of the shell and is fixed to the first operating rod.

[0016] As an optimized solution, the operating lever mechanism includes a connecting seat fixed in the cab, a lower U-shaped seat is fixedly connected to the connecting seat, a cross-shaped shaft is rotatably provided between opposite side walls of the lower U-shaped seat, and an upper U-shaped seat arranged opposite to the lower U-shaped seat is rotatably provided at the other two opposite ends of the cross-shaped shaft.

[0017] A connecting rod in an L shape is fixedly connected to one end of the cross-shaped shaft connected to the upper U-shaped seat, and the other end of the connecting rod extends to one of the other opposite ends of the cross-shaped shaft and is fixedly connected to a first connecting terminal. The connecting terminal is swung up and down along the center line of the cross-shaped shaft, and a second connecting terminal is coaxially fixedly connected to one end of the cross-shaped shaft connected to the connecting rod.

[0018] As an optimized solution, the other end of the first gear shift soft cable is connected to the first connecting terminal.

[0019] As an optimized solution, the other end of the second gear shift soft cable is connected to the second connecting terminal.

[0020] As an optimized solution, a fixing hole is provided on the connecting seat, and a bolt is inserted into the fixing hole.

[0021] As an optimized solution, a circumferential limiting structure is provided between the fork shaft and the mounting sleeve.

[0022] As an optimized solution, a shift fork is fixedly connected to the shift fork shaft.

[0023] As an optimized solution, an operating rod is fixedly connected to the upper end of the upper U-shaped seat.

[0024] Compared with the prior art, the beneficial effects of the utility model are:

[0025] By arranging a fork sleeve on the fork shaft and arranging a swinging driving fork in the housing, the fork shaft can be horizontally slid in the housing by using the driving fork to shift the fork sleeve, and one end of the fork shaft is slidably connected with the mounting sleeve, so that the fork shaft can be driven to rotate circumferentially by a second operating rod externally. Since the mounting sleeve and the sealing ring are arranged, the phenomenon of external dust entering due to the horizontal sliding of the fork shaft on the housing in the traditional technology can be overcome;

[0026] By connecting the operating lever mechanism between the first operating lever and the second operating lever using the first shift soft pull wire and the second shift soft pull wire, the position of the operating lever mechanism can be fixed at will. By swinging the operating lever, the first connecting terminal and the second connecting terminal are used to drive the first operating lever and the second operating lever to swing through the corresponding soft pull wires, thereby realizing the gear shifting operation, thereby overcoming the problem that the operating lever mechanism must be close to the gear shift mechanism in traditional technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the specific implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the specific implementation or the prior art description. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual scale.

[0028] Figure 1 It is a structural schematic diagram of the utility model.

[0029] In the figure: 1-housing; 2-shift fork shaft; 3-shift fork sleeve; 4-driving shift fork; 5-shaft body; 6-first operating rod; 7-mounting sleeve; 8-sealing ring; 9-second operating rod; 10-shift fork; 11-first gear shift soft cable; 12-second gear shift soft cable; 13-first connecting terminal; 14-first connecting terminal; 15-connecting seat; 16-lower U-shaped seat; 17-upper U-shaped seat; 18-cross shaft; 19-operating rod; 20-connecting rod. DETAILED DESCRIPTION

[0030] The following embodiments of the technical solution of the utility model are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and are therefore only used as examples, and cannot be used to limit the protection scope of the utility model.

[0031] like Figure 1 As shown, the shift mechanism control assembly includes a housing 1, a horizontally arranged shift fork shaft 2 is rotatably arranged in the housing 1, a shift fork sleeve 3 is fixedly connected to the shift fork shaft 2, and a driving shift fork 4 is rotatably arranged in the housing 1 to slide the shift fork shaft 2 horizontally.

[0032] The housing 1 has a first operating rod 6 connected to the driving fork 4 and a second operating rod 9 that drives the fork 4 to rotate along the circumferential direction.

[0033] The first operating rod 6 and the second operating rod 9 are connected to the operating rod 19 mechanism via the first shift soft cable 11 and the second shift soft cable 12 respectively.

[0034] A mounting hole is horizontally opened in the housing 1 , and a mounting sleeve 7 is rotatably arranged in the mounting hole. One end of the fork shaft 2 is slidably inserted into the inner end of the mounting sleeve 7 , and the second operating rod 9 is fixed to the outer end of the mounting sleeve 7 .

[0035] Annular grooves are arranged in parallel on the outer wall of the mounting sleeve 7, and a sealing ring 8 is arranged in the annular groove. The outer ring of the sealing ring 8 is frictionally abutted against the mounting hole.

[0036] A shaft body 5 is provided in the housing 1 for horizontal rotation. The driving fork 4 is fixedly connected to one end of the shaft body 5 . The other end of the shaft body 5 extends to the outside of the housing 1 and is fixedly connected to the first operating rod 6 .

[0037] The operating lever 19 mechanism includes a connecting seat 15 fixed in the cab, a lower U-shaped seat is fixedly connected to the connecting seat 15, a cross-shaped shaft 18 is rotatably provided between opposite side walls of the lower U-shaped seat 16, and an upper U-shaped seat 17 arranged opposite to the lower U-shaped seat 16 is rotatably provided at the other two opposite ends of the cross-shaped shaft 18.

[0038] An L-shaped connecting rod 20 is fixedly connected to one end of the cross-shaped shaft 18 connected to the upper U-shaped seat 17. The other end of the connecting rod 20 extends to one of the other opposite ends of the cross-shaped shaft 18 and is fixedly connected to a first connecting terminal. The connecting terminal is set to swing up and down along the center line of the cross-shaped shaft 18. The end of the cross-shaped shaft 18 connected to the connecting rod 20 is also coaxially fixed with a second connecting terminal.

[0039] The other end of the first gear shift soft cable 11 is connected to the first connecting terminal.

[0040] The other end of the second gear shift soft cable 12 is connected to the second connecting terminal.

[0041] The connecting seat 15 is provided with a fixing hole, in which a bolt is inserted.

[0042] A circumferential limiting structure is provided between the fork shaft 2 and the mounting sleeve 7 , and the circumferential limiting structure includes an external spline formed on the end of the fork shaft 2 and an internal spline formed on the inner wall of the mounting sleeve 7 .

[0043] A shift fork 10 is fixedly connected to the shift fork shaft 2 .

[0044] An operating rod 19 is fixedly connected to the upper end of the upper U-shaped seat.

[0045] A spring and other structures are also provided between the fork shaft 2 and the housing 1 , which are common in daily life and will not be described in detail here.

[0046] The working principle of this device is:

[0047] By arranging a fork sleeve 3 on the fork shaft 2 and arranging a swinging driving fork 4 in the housing 1, the fork shaft 2 can be horizontally slid in the housing 1 by using the driving fork 4 to move the fork sleeve 3, and one end of the fork shaft 2 is slidably connected with the mounting sleeve 7, so that the fork shaft 2 can be driven to rotate circumferentially by the second operating rod 9 from the outside. Since the mounting sleeve 7 and the sealing ring 8 are provided, the phenomenon of external dust entering due to the horizontal sliding of the fork shaft 2 on the housing 1 in the traditional technology can be overcome;

[0048] By connecting the operating lever 19 mechanism between the first operating lever 6 and the second operating lever 9 using the first shift soft pull cable 11 and the second shift soft pull cable 12, the position of the operating lever 19 mechanism can be fixed at will. By swinging the operating lever 19, the first connecting terminal and the second connecting terminal are used to drive the first operating lever 6 and the second operating lever 9 to swing through the corresponding soft pull cables, thereby realizing the gear shifting operation, which overcomes the problem that the operating lever 19 mechanism must be close to the gear shifting mechanism in traditional technology.

[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model, and they should all be included in the scope of the claims and specification of the utility model.

Claims

1. The shift mechanism control assembly is characterized by: The invention comprises a housing (1), a horizontally arranged fork shaft (2) being rotatably disposed in the housing (1), a fork sleeve (3) being fixedly connected to the fork shaft (2), and a driving fork (4) being rotatably disposed in the housing (1) for driving the fork sleeve (3) to slide the fork shaft (2) horizontally. The housing (1) has a first operating rod (6) connected to the driving fork (4) and a second operating rod (9) for driving the fork shaft (2) to rotate in a circumferential direction. The first operating rod (6) and the second operating rod (9) are connected to the operating rod mechanism via a first gear shift soft cable (11) and a second gear shift soft cable (12) respectively.

2. The shift mechanism control assembly according to claim 1, characterized in that: A mounting hole is horizontally opened in the housing (1), a mounting sleeve (7) is rotatably arranged in the mounting hole, one end of the shift fork shaft (2) is slidably inserted into the inner end of the mounting sleeve (7), and the second operating rod (9) is fixedly connected to the outer end of the mounting sleeve (7).

3. The shift mechanism control assembly according to claim 2, characterized in that: Annular grooves are arranged in parallel on the outer wall of the installation sleeve (7), a sealing ring (8) is arranged in the annular groove, and the outer ring of the sealing ring (8) is frictionally abutted against the installation hole.

4. The shift mechanism control assembly according to claim 3, characterized in that: A shaft (5) is provided in the housing (1) for horizontal rotation. The driving fork (4) is fixedly connected to one end of the shaft (5). The other end of the shaft (5) extends to the outside of the housing (1) and is fixedly connected to the first operating rod (6).

5. The shift mechanism control assembly according to claim 4, characterized in that: The operating lever mechanism comprises a connecting seat (15) fixed in the cab, a lower U-shaped seat (16) being fixedly connected to the connecting seat (15), a cross-shaped shaft (18) being rotatably provided between opposite side walls of the lower U-shaped seat (16), and an upper U-shaped seat (17) being rotatably provided at the other two opposite ends of the cross-shaped shaft (18) and being arranged opposite to the lower U-shaped seat (16). A connecting rod (20) arranged in an L shape is fixedly connected to one end of the cross-shaped shaft (18) connected to the upper U-shaped seat (17); the other end of the connecting rod (20) extends to one of the other opposite ends of the cross-shaped shaft (18) and is fixedly connected to a first connecting terminal; the connecting terminal is arranged to swing up and down along the center line of the cross-shaped shaft (18); and a second connecting terminal is coaxially fixedly connected to one end of the cross-shaped shaft (18) connected to the connecting rod (20).

6. The shift mechanism control assembly according to claim 5, characterized in that: The other end of the first gear-shifting soft cable (11) is connected to the first connecting terminal, and the other end of the second gear-shifting soft cable (12) is connected to the second connecting terminal.

7. The shift mechanism control assembly according to claim 6, characterized in that: The connection seat (15) is provided with a fixing hole, in which a bolt is inserted.

8. The shift mechanism control assembly according to claim 7, characterized in that: A circumferential limiting structure is provided between the shift fork shaft (2) and the mounting sleeve (7).

9. The shift mechanism control assembly according to claim 8, characterized in that: A shift fork (10) is fixedly connected to the shift fork shaft (2).

10. The shift mechanism control assembly according to claim 9, characterized in that: An operating rod (19) is fixedly connected to the upper end of the upper U-shaped seat.

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