Four-rod type pull rod gear engaging control assembly

Abstract

A four-rod type pull rod gear engaging control assembly relates to the technical field of gearbox tools and comprises a side control shell, a gear selecting shell is fixedly connected to the side control shell, a main gear selecting shaft and an auxiliary gear selecting shaft are rotatably arranged on the opposite side walls of the gear selecting shell respectively, and a main rod sliding rod and an auxiliary rod sliding rod are rotatably arranged at the end of the side control shell side by side; a main control seat with a fixed position is fixedly arranged above the side control shell, a main gear selecting adjusting seat which is arranged in a longitudinal swinging mode is hinged to the main control seat, a main gear selecting pull rod is hinged to the main gear selecting adjusting seat, a main gear selecting rocker arm is vertically and fixedly connected to the main gear selecting shaft, and the lower end of the main gear selecting pull rod is hinged to the swinging end of the main gear selecting rocker arm. The gear shifting control mechanism solves the problems that in the prior art, the lower end of an operating rod is directly connected to a gear shifting mechanism, so that due to the fact that tractors of different models are different in wheel track and limited by different positions of metal plates, an existing gear shifting control mechanism is low in flexibility in the using process, and the using range is limited.

Description

Technical Field

[0001] The utility model relates to the technical field of gearbox tools, in particular to a four-rod pull rod gear shifting 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] The prior art discloses a patent with a publication number of CN207261633U, which includes: a cover plate assembly, a support body and a base are arranged from top to bottom, and the two adjacent parts are detachably connected, wherein a joystick assembly that penetrates the cover plate assembly and is movably connected to the support body is used as a vehicle shift component, and a push rod assembly that is linked to the joystick assembly and a travel block that is slidably connected to the push rod assembly are arranged on one side of the joystick assembly. The utility model provides a vehicle shift operating mechanism assembly, wherein a push rod assembly and a travel block that is slidably connected to the push rod assembly are arranged on one side of the joystick assembly for vehicle shifting, so that when the joystick assembly is performing a shifting operation, the push rod assembly can slide on the travel block, thereby achieving smoothness of shifting and improving the comfort of the user when shifting.

[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] The lower end of the operating lever in the existing cab is directly connected to the shift mechanism. This makes the existing shift control mechanism less flexible during use due to the different wheelbases of different types of tractors and the different positions of sheet metal, resulting in a limited scope of use.

[0006] In summary, the prior art obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content

[0007] In view of the defects in the prior art, the utility model provides a four-rod pull-rod gear shift control assembly to solve the problem that the lower end of the operating lever in the traditional technology is directly connected to the gear shift mechanism. As a result, due to the different wheelbases of different models of tractors and the different positions of sheet metal, the existing gear shift control mechanism has low flexibility during use, resulting in a limited scope of use.

[0008] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0009] The four-bar pull-rod gear shifting control assembly comprises a side control housing, a gear selection housing is fixedly connected to the side control housing, a main gear selection shaft and a secondary gear selection shaft are rotatably provided on opposite side walls of the gear selection housing, and a main rod slide bar and a secondary rod slide bar are rotatably provided at the end of the side control housing;

[0010] A main operating seat fixed in position is fixed above the side operating housing, a main gear selection adjusting seat swinging in the longitudinal direction is hingedly connected to the main operating seat, a main gear selection pull rod is hingedly connected to the main gear selection adjusting seat, a main gear selection rocker arm is vertically fixedly connected to the main gear selection shaft, and a lower end of the main gear selection pull rod is hingedly connected to a swinging end of the main gear selection rocker arm;

[0011] The main gear selection adjustment seat is hinged on the top of the main gear adjustment seat and is set to swing along the longitudinal direction. The main gear adjustment seat is hinged with a main gear pull rod. The main rod slide bar is vertically fixed with a main gear rocker arm. The lower end of the main gear pull rod is hinged to the swing end of the main gear rocker arm.

[0012] As an optimized solution, a fixed auxiliary control seat is fixed on the top of the side control shell, and a auxiliary gear selection adjustment seat is hinged on the auxiliary control seat and is set to swing along the lateral direction. A auxiliary gear selection pull rod is hinged on the auxiliary gear selection adjustment seat, and an auxiliary gear selection rocker arm is vertically fixed on the auxiliary gear selection shaft, and the lower end of the auxiliary gear selection pull rod is hinged to the swinging end of the auxiliary gear selection rocker arm.

[0013] As an optimized solution, the top of the auxiliary gear selection adjustment seat is hinged with an auxiliary gear adjustment seat set to swing along the longitudinal direction, the auxiliary gear adjustment seat is hinged with an auxiliary gear pull rod, the auxiliary rod slide rod is vertically fixed with an auxiliary gear rocker arm, and the lower end of the auxiliary gear pull rod is hinged to the swing end of the auxiliary gear rocker arm.

[0014] As an optimized solution, a main operating handle is vertically fixed to the upper end of the main gear adjustment seat.

[0015] As an optimized solution, a secondary operating handle is vertically fixed to the upper end of the secondary gear adjustment seat.

[0016] As an optimized solution, a plurality of main fixing holes are arranged in parallel on the main operating seat.

[0017] As an optimized solution, a plurality of auxiliary fixing holes are arranged in parallel on the auxiliary operating seat.

[0018] As an optimized solution, a longitudinal sliding limit bolt is threadedly connected to the main operating seat, and the end of the longitudinal sliding limit bolt is frictionally abutted against the end of the main gear selection adjustment seat.

[0019] As an optimized solution, a main torsion spring is sleeved on the hinge center of the main gear selection adjustment seat, and two ends of the main torsion spring are respectively against the main gear selection adjustment seat and the longitudinal sliding limit bolt.

[0020] As an optimized solution, a longitudinal sliding limit bolt is threadedly connected to the auxiliary operating seat, and the end of the longitudinal sliding limit bolt is frictionally abutted against the end of the auxiliary gear selection adjustment seat.

[0021] As an optimized solution, a secondary torsion spring is sleeved on the hinge center of the secondary gear selection adjustment seat, and two ends of the secondary torsion spring are respectively against the secondary gear selection adjustment seat and the longitudinal sliding limit bolt.

[0022] Compared with the prior art, the beneficial effects of the utility model are:

[0023] By providing a main operating seat and an auxiliary operating seat, the main operating seat and the auxiliary operating seat are fixedly connected to the mudguard on the right side of the seat in the cab by using the corresponding main fixing holes and auxiliary fixing holes. By swinging the main operating handle and the auxiliary operating handle, the corresponding pull rod is used to operate the shift head in the side operating shell below to realize gear selection and shifting operations. By providing the pull rod, the operating flexibility of the main operating handle and the auxiliary operating handle is improved, and the influence of different wheelbases of tractors of different models and different positions of sheet metal on the operation of the main operating handle and the auxiliary operating handle can be reduced, thereby improving the flexibility of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] 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.

[0025] Figure 1 It is a structural schematic diagram of the utility model.

[0026] In the figure: 1-side operating housing; 2-main gear selection shaft; 3-auxiliary gear selection shaft; 4-main lever slide bar; 5-auxiliary lever slide bar; 6-main operating seat; 7-auxiliary operating seat; 8-main gear selection adjustment seat; 9-auxiliary gear selection adjustment seat; 10-main gear adjustment seat; 11-auxiliary gear adjustment seat; 12-main operating handle; 13-auxiliary operating handle; 14-main torsion spring; 15-longitudinal sliding limit bolt; 16-gear selection housing; 17-main gear selection rod; 18-main gear lever; 19-auxiliary gear selection rod; 20-auxiliary gear lever; 21-main gear selection rocker arm; 22-auxiliary gear selection rocker arm; 23-main gear rocker arm; 24-auxiliary gear rocker arm. DETAILED DESCRIPTION

[0027] 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.

[0028] like Figure 1 As shown, the four-bar pull-rod gear shifting control assembly comprises a side control housing 1, a gear selection housing is fixedly connected to the side control housing 1, a main gear selection shaft 2 and a secondary gear selection shaft 3 are rotatably provided on the opposite side walls of the gear selection housing 16, and a main rod slide bar 4 and a secondary rod slide bar 5 are rotatably provided at the end of the side control housing 1;

[0029] A main operating seat 6 fixed in position is fixed above the side operating housing 1, a main gear selection adjusting seat 8 swinging in the lateral direction is hingedly connected to the main operating seat 6, a main gear selection pull rod 17 is hingedly connected to the main gear selection adjusting seat 8, a main gear selection rocker arm 21 is vertically fixedly connected to the main gear selection shaft 2, and the lower end of the main gear selection pull rod 17 is hingedly connected to the swing end of the main gear selection rocker arm 21;

[0030] A main gear adjustment seat 10 is hinged on the top of the main gear selection adjustment seat 8 and is set to swing along the longitudinal direction. A main gear adjustment rod 18 is hinged on the main gear adjustment seat 10. A main gear rocker arm 23 is vertically fixed on the main rod slide bar 4. The lower end of the main gear pull rod 18 is hinged to the swing end of the main gear rocker arm 23.

[0031] The connection structure of the dial head in the side control housing 1 is common in daily life. Since it is not an innovation of the present invention, it will not be described in detail here.

[0032] A fixed auxiliary control seat 7 is fixed above the side control housing 1, and an auxiliary gear selection adjustment seat 9 is hinged on the auxiliary control seat 7 and swingably arranged in the lateral direction. An auxiliary gear selection rod 19 is hinged on the auxiliary gear selection adjustment seat 9, and an auxiliary gear selection rocker arm 22 is vertically fixed on the auxiliary gear selection shaft 3. The lower end of the auxiliary gear selection rod 19 is hinged to the swinging end of the auxiliary gear selection rocker arm 22.

[0033] A secondary gear selection adjustment seat 11 is hinged on the top of the secondary gear selection adjustment seat 9 and is set to swing along the longitudinal direction. A secondary gear shifting rod 20 is hinged on the secondary gear shifting adjustment seat 11. A secondary gear shifting rocker arm 24 is vertically fixed on the secondary rod slide bar 5. The lower end of the secondary gear shifting rod 20 is hinged to the swinging end of the secondary gear shifting rocker arm 24.

[0034] A main operating handle 12 is vertically fixed to the upper end of the main gear adjustment seat 10 .

[0035] An auxiliary operating handle 13 is vertically fixed to the upper end of the auxiliary gear adjustment seat 11 .

[0036] The main operating seat 6 is provided with a plurality of main fixing holes arranged in parallel.

[0037] A plurality of auxiliary fixing holes are arranged in parallel on the auxiliary control seat 7, which are used to be fixed to the cab by bolts.

[0038] A longitudinal sliding limit bolt 15 is threadedly connected to the main operating seat 6, and the end of the longitudinal sliding limit bolt 15 is frictionally abutted against the end of the main gear selection adjustment seat 8 to prevent the main gear selection adjustment seat 8 from sliding.

[0039] The hinge center of the main gear selection adjustment seat 8 is sleeved with a main torsion spring 14, and the two ends of the main torsion spring 14 are respectively against the main gear selection adjustment seat 8 and the longitudinal sliding limit bolt 15 to support the swing of the main gear selection adjustment seat 8.

[0040] A longitudinal sliding limit bolt 15 is threadedly connected to the auxiliary operating seat 7, and the end of the longitudinal sliding limit bolt 15 is frictionally abutted against the end of the auxiliary gear selection adjustment seat 9 to prevent the auxiliary gear selection adjustment seat 9 from sliding.

[0041] The hinge center of the auxiliary gear selection adjustment seat 9 is sleeved with an auxiliary torsion spring, and the two ends of the auxiliary torsion spring are respectively against the auxiliary gear selection adjustment seat 9 and the longitudinal sliding limit bolt 15 to support the swing of the auxiliary gear selection adjustment seat 9.

[0042] The working principle of this device is:

[0043] By setting a main operating seat 6 and an auxiliary operating seat 7, the main operating seat 6 and the auxiliary operating seat 7 are fixedly connected to the mudguard on the right side of the seat in the cab by using the corresponding main fixing holes and auxiliary fixing holes. By swinging the main operating handle 12 and the auxiliary operating handle 13, the corresponding pull rod is used to operate the shift head in the side operating shell 1 below to realize gear selection and shifting operations. By setting the pull rod, the operating flexibility of the main operating handle 12 and the auxiliary operating handle 13 is improved, and the influence of different wheelbases of tractors of different models and different positions of sheet metal on the operation of the main operating handle 12 and the auxiliary operating handle 13 can be reduced, thereby improving the flexibility of use.

[0044] 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. A four-bar pull-rod gear shifting control assembly, characterized in that: The invention comprises a side operating housing (1), a gear selection housing being fixedly connected to the side operating housing (1), a main gear selection shaft (2) and a secondary gear selection shaft (3) being rotatably provided on opposite side walls of the gear selection housing (16), and a main lever slide bar (4) and a secondary lever slide bar (5) being rotatably provided in parallel at the end of the side operating housing (1); A main operating seat (6) fixed in position is fixed above the side operating housing (1), a main gear selection adjusting seat (8) arranged to swing in a lateral direction is hingedly connected to the main operating seat (6), a main gear selection pull rod (17) is hingedly connected to the main gear selection adjusting seat (8), a main gear selection rocker arm (21) is vertically fixedly connected to the main gear selection shaft (2), and a lower end portion of the main gear selection pull rod (17) is hingedly connected to a swinging end of the main gear selection rocker arm (21); The main gear selection adjustment seat (8) is hingedly connected to the top with a main gear adjustment seat (10) which is set to swing along the longitudinal direction, and the main gear adjustment seat (10) is hingedly connected with a main gear pull rod (18), and the main rod slide bar (4) is vertically fixed with a main gear rocker arm (23), and the lower end of the main gear pull rod (18) is hingedly connected to the swing end of the main gear rocker arm (23).

2. The four-bar pull-rod gear shifting control assembly according to claim 1 is characterized in that: A fixed auxiliary operating seat (7) is fixed above the side operating housing (1), an auxiliary gear selection adjustment seat (9) is hingedly connected to the auxiliary operating seat (7) and is arranged to swing in the lateral direction, an auxiliary gear selection pull rod (19) is hingedly connected to the auxiliary gear selection adjustment seat (9), an auxiliary gear selection rocker arm (22) is vertically fixedly connected to the auxiliary gear selection shaft (3), and the lower end of the auxiliary gear selection pull rod (19) is hingedly connected to the swinging end of the auxiliary gear selection rocker arm (22).

3. The four-bar pull-rod gear shifting control assembly according to claim 2 is characterized in that: The auxiliary gear selection adjustment seat (9) is hingedly connected to the top with an auxiliary gear adjustment seat (11) which is set to swing along the longitudinal direction, and the auxiliary gear adjustment seat (11) is hingedly connected with an auxiliary gear pull rod (20), and the auxiliary rod slide bar (5) is vertically fixed with an auxiliary gear rocker arm (24), and the lower end of the auxiliary gear pull rod (20) is hinged with the swing end of the auxiliary gear rocker arm (24).

4. The four-bar pull-rod gear shifting control assembly according to claim 3 is characterized in that: A main operating handle (12) is vertically fixed to the upper end of the main gear adjustment seat (10).

5. The four-bar pull-rod gear shifting control assembly according to claim 4 is characterized in that: An auxiliary operating handle (13) is vertically fixedly connected to the upper end of the auxiliary gear adjustment seat (11).

6. The four-bar pull-rod gear shifting control assembly according to claim 5 is characterized in that: The main operating seat (6) is provided with a plurality of main fixing holes arranged in parallel; the auxiliary operating seat (7) is provided with a plurality of auxiliary fixing holes arranged in parallel.

7. The four-bar pull-rod gear shifting control assembly according to claim 6 is characterized in that: A longitudinal sliding limit bolt (15) is threadedly connected to the main operating seat (6), and the end of the longitudinal sliding limit bolt (15) is frictionally abutted against the end of the main gear selection adjustment seat (8).

8. The four-bar pull-rod gear shifting control assembly according to claim 7 is characterized in that: A main torsion spring (14) is sleeved on the hinge center of the main gear selection adjustment seat (8), and two ends of the main torsion spring (14) are respectively against the main gear selection adjustment seat (8) and the longitudinal sliding limit bolt (15).

9. The four-bar pull-rod gear shifting control assembly according to claim 8 is characterized in that: A longitudinal sliding limit bolt (15) is threadedly connected to the auxiliary operating seat (7), and the end of the longitudinal sliding limit bolt (15) is frictionally abutted against the end of the auxiliary gear selection adjustment seat (9).

10. The four-bar pull-rod gear shifting control assembly according to claim 9, characterized in that: A secondary torsion spring is sleeved on the hinge center of the secondary gear selection adjustment seat (9), and two ends of the secondary torsion spring are respectively against the secondary gear selection adjustment seat (9) and the longitudinal sliding limit bolt (15).

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