Three-rod type pull rod gear engaging control assembly

Abstract

A three-rod type pull rod gear engaging control assembly relates to the technical field of gearbox tools and comprises a side control shell, a main rod sliding rod and an auxiliary rod sliding rod are rotationally arranged at one end of the side control shell in parallel, and a gear selecting shaft is further rotationally arranged on one side of the side control shell; a control seat with a fixed position is fixedly arranged above the side control shell, a gear selecting adjusting seat which is arranged in a longitudinal swinging mode is hinged to the control seat, a gear selecting pull rod is hinged to the gear selecting adjusting seat, a gear selecting rocker arm is vertically and fixedly connected to the gear selecting shaft, and the lower end of the gear selecting pull rod is hinged to the swinging end of the gear selecting rocker arm. The gear shifting control mechanism solves the problems that in the prior art, the lower end of a control 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 appliances, and particularly relates to a three-rod pull rod gear shifting control assembly. Background Art

[0002] The gearbox mainly refers to the gearbox of an automobile, which is divided into two types: manual and automatic. The manual gearbox is mainly composed of gears and shafts, and different gear combinations are used to produce variable speed and torque; while the automatic transmission AT is composed of a hydraulic torque converter, planetary gears, a hydraulic variable distance system and a hydraulic control system. Many existing construction machinery gearboxes are manually operated, such as tractor models, which requires the use of a shifting mechanism for manual operation.

[0003] A patent with a publication number of CN207261633U is disclosed in the prior art. The solution includes: a cover assembly, a support body and a base are arranged from top to bottom, and the adjacent two are detachably connected. Among them, the control rod assembly that penetrates through the cover assembly and is movably connected to the support body is used as an automobile shifting component, and a push rod assembly linked with the control rod assembly and a travel block slidably connected with the push rod assembly are arranged on one side of the control rod assembly. The utility model provides an automobile shifting control mechanism assembly, in which a push rod assembly and a travel block slidably matched with the push rod assembly are arranged on one side of the control rod assembly for shifting the automobile, so that when the control rod assembly performs a shifting operation, the push rod assembly slides on the travel block, realizing the smoothness of shifting and improving the comfort of the user when shifting gears.

[0004] With the production and use of the existing device, the deficiencies of this technology have gradually emerged, mainly manifested in the following aspects:

[0005] The lower ends of the control rods in the existing cab are directly connected to the shifting mechanism. This makes the existing shifting control mechanism have low flexibility during use and limited application range due to different wheelbases of different models of tractors and limited positions of the sheet metal.

[0006] To sum up, it is obvious that the prior art has inconveniences and defects in actual use, so it is necessary to improve it. Content of the Utility Model

[0007] Aiming at the defects in the prior art, the utility model provides a three-rod pull rod gear shifting control assembly to solve the problem that the lower ends of the control rods in the traditional technology are directly connected to the shifting mechanism, which makes the existing shifting control mechanism have low flexibility during use and limited application range due to different wheelbases of different models of tractors and limited positions of the sheet metal.

[0008] To achieve the above object, the utility model provides the following technical solutions:

[0009] The three-rod pull-rod gear shifting control assembly comprises a side control housing, one end of which is provided with a main rod slide bar and a secondary rod slide bar for rotation in parallel, and one side of the side control housing is also provided with a gear selection shaft for rotation;

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

[0011] A fixed auxiliary gear adjustment seat is also hinged on the top of the side operating shell, and the auxiliary gear adjustment seat is set to swing along the longitudinal direction. The swinging end of the auxiliary gear adjustment seat is hinged with a high and low gear pull rod, and an auxiliary gear rocker arm is vertically fixed on the auxiliary rod slide rod, and the lower end of the high and low gear pull rod is hinged to the swinging end of the auxiliary gear rocker arm.

[0012] As an optimized solution, a main gear adjustment seat is hinged on the top of the gear selection adjustment seat and is set to swing along the longitudinal direction. A gear pull rod is hinged on the main gear adjustment seat. A main gear rocker arm is vertically fixed on the main rod slide rod, and the lower end of the gear pull rod is hinged to the swing end of the main gear rocker arm.

[0013] As an optimized solution, a portion of the gear selector shaft located inside the side operating housing is fixedly connected to a gear selector head.

[0014] As an optimized solution, a high and low gear shift head is fixedly connected to the auxiliary rod slide bar.

[0015] As an optimized solution, a shift selector block cooperating with the shift selector head is provided on the main rod slide bar.

[0016] As an optimized solution, a portion of the main rod slide rod outside the side control housing is sleeved with a sealing sleeve.

[0017] As an optimized solution, a main operating handle is vertically fixed to the upper end of the main gear adjustment seat.

[0018] As an optimized solution, a secondary operating handle is vertically fixed to the upper end of the secondary gear adjustment seat.

[0019] As an optimized solution, a plurality of fixing holes are arranged in parallel on the operating seat.

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

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

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

[0023] By providing a control seat and using corresponding fixing holes to fix the control seat on the fender on the right side of the seat in the cab, and fixing the hinge end of the auxiliary gear shifting adjusting seat on the fender on the right side of the seat in the cab by using a support seat. By swinging the main control handle and the auxiliary control handle, the corresponding pull rods are used to operate the shifting head in the lower side control housing, so as to realize the gear selection and gear shifting operations. By providing the pull rods, the operation flexibility of the main control handle and the auxiliary control handle is improved, and the influence of different wheelbases and different positions of sheet metals of different types of tractors on the operations of the main control handle and the auxiliary control handle can be reduced, thereby improving the use flexibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. In all the drawings, similar elements or parts are generally denoted by similar reference numerals. In the drawings, the elements or parts do not necessarily draw according to the actual scale.

[0025] Figure 1 is a structural schematic diagram of the present utility model;

[0026] Figure 2 is a structural schematic diagram of the present utility model along the axial section of the main rod sliding rod;

[0027] Figure 3 is a structural schematic diagram of the present utility model along the axial section of the auxiliary rod sliding rod.

[0028] In the figure: 1-side control housing; 2-main rod sliding rod; 3-auxiliary rod sliding rod; 4-main gear shifting rocker arm; 5-auxiliary gear shifting rocker arm; 6-control seat; 7-gear selection adjusting seat; 8-main gear shifting adjusting seat; 9-auxiliary gear shifting adjusting seat; 10-main control handle; 11-auxiliary control handle; 12-torsion spring; 13-longitudinal sliding limit bolt; 14-, gear shifting pull rod; 15-gear selection pull rod; 16-high-low gear pull rod; 17-sealing sleeve; 18-gear selection shifting head; 19-gear selection shifting block; 20-gear selection shaft; 21-gear selection rocker arm; 22-main rod shifting head; 23-high-low gear shifting head. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] The embodiments of the technical solution of the present utility model will be described in detail below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present utility model, so they are only examples and cannot be used to limit the protection scope of the present utility model.

[0030] As Figures 1 to 3 shown, the three-rod pull rod shifting control assembly includes a side control housing 1. A main rod slide rod 2 and a sub-rod slide rod 3 are rotatably arranged in parallel at one end of the side control housing 1. A shift selection shaft 20 is also rotatably arranged on one side of the side control housing 1.

[0031] A position-fixed control seat 6 is fixedly arranged above the side control housing 1. A shift selection adjustment seat 7 that swings horizontally is hinged on the control seat 6. A shift selection pull rod 15 is hinged on the shift selection adjustment seat 7. A shift selection rocker arm 21 is vertically fixed on the shift selection shaft 20. The lower end of the shift selection pull rod 15 is hinged to the swinging end of the shift selection rocker arm 21.

[0032] A sub-shifting adjustment seat 9 with a fixed position is also hinged above the side control housing 1. The sub-shifting adjustment seat 9 swings longitudinally. The swinging end of the sub-shifting adjustment seat 9 is hinged to a high-low gear pull rod 16. A sub-shifting rocker arm 5 is vertically fixed on the sub-rod slide rod 3. The lower end of the high-low gear pull rod 16 is hinged to the swinging end of the sub-shifting rocker arm 5.

[0033] The top of the shift selection adjustment seat 7 is hinged with a main shifting adjustment seat 8 that swings longitudinally. A shifting pull rod 14 is hinged on the main shifting adjustment seat 8. A main shifting rocker arm 4 is vertically fixed on the main rod slide rod 2. The lower end of the shifting pull rod 14 is hinged to the swinging end of the main shifting rocker arm 4.

[0034] A shift selection dial head 18 is fixed on the part of the shift selection shaft 20 inside the side control housing 1.

[0035] A main rod dial head 22 is also fixed on the main rod slide rod 2.

[0036] A high-low gear dial head 23 is fixed on the sub-rod slide rod 3.

[0037] A shift selection block 19 that cooperates with the shift selection dial head 18 is arranged on the main rod slide rod 2.

[0038] A sealing sleeve 17 is sleeved on the part of the main rod slide rod 2 outside the side control housing 1.

[0039] A main control handle 10 is vertically fixed at the upper end of the main shifting adjustment seat 8.

[0040] A sub-control handle 11 is vertically fixed at the upper end of the sub-shifting adjustment seat 9.

[0041] A plurality of fixing holes are arranged in parallel on the control seat 6.

[0042] A longitudinal sliding limit bolt 13 is threadedly connected to the control seat 6, and the end of the longitudinal sliding limit bolt 13 is in frictional contact with the end of the gear selection adjusting seat 7.

[0043] A torsion spring 12 is sleeved on the hinge center of the gear selection adjusting seat 7, and the two ends of the torsion spring 12 are respectively in contact with the gear selection adjusting seat 7 and the longitudinal sliding limit bolt 13.

[0044] The connection structure of the shift head in the side control housing 1 is common in daily life. Since it does not belong to the innovation of this solution, it will not be elaborated here.

[0045] The working principle of this device is as follows:

[0046] By setting the control seat 6, the control seat 6 is fixed on the fender on the right side of the seat in the cab by using the corresponding fixing holes, and the hinged end of the auxiliary shift adjusting seat 9 is also fixed on the fender on the right side of the seat in the cab by using the support seat. By swinging the main control handle 10 and the auxiliary control handle 11, the shift head in the lower side control housing 1 is operated by using the corresponding pull rod, so as to realize the gear selection and shifting operations. By setting the pull rod, the operation flexibility of the main control handle 10 and the auxiliary control handle 11 is improved, and the influence of different wheelbases of different types of tractors and different positions of the sheet metal on the operations of the main control handle 10 and the auxiliary control handle 11 can be reduced, thereby improving the use flexibility.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the various embodiments of the present invention, and they should all be covered by the scope of the claims and the description of the present invention.

Claims

1. Three-rod pull-rod gear shifting control assembly, characterized in that: It comprises a side operating housing (1), one end of which is provided with a main rod slide bar (2) and a secondary rod slide bar (3) for rotation in parallel, and one side of the side operating housing (1) is also provided with a gear selection shaft (20) for rotation; A fixed operating seat (6) is fixed above the side operating housing (1), a gear selection adjustment seat (7) is hingedly connected to the operating seat (6) and is arranged to swing in a lateral direction, a gear selection pull rod (15) is hingedly connected to the gear selection adjustment seat (7), a gear selection rocker arm (21) is vertically fixedly connected to the gear selection shaft (20), and a lower end portion of the gear selection pull rod (15) is hingedly connected to a swinging end of the gear selection rocker arm (21); A fixed auxiliary gear adjustment seat (9) is also hingedly connected above the side operating housing (1); the auxiliary gear adjustment seat (9) is swingably arranged in the longitudinal direction; a high and low gear pull rod (16) is hingedly connected to the swinging end of the auxiliary gear adjustment seat (9); an auxiliary gear rocker arm (5) is vertically fixedly connected to the auxiliary rod slide bar (3); and the lower end of the high and low gear pull rod (16) is hingedly connected to the swinging end of the auxiliary gear rocker arm (5).

2. The three-rod pull rod shift control assembly according to claim 1, characterized in that: A main gear adjustment seat (8) is hingedly connected to the top of the gear selection adjustment seat (7) and is arranged to swing in the longitudinal direction. A gear pull rod (14) is hingedly connected to the main gear adjustment seat (8). A main gear rocker arm (4) is vertically fixedly connected to the main rod slide bar (2). The lower end of the gear pull rod (14) is hingedly connected to the swing end of the main gear rocker arm (4).

3. The three-bar pull rod shifting control assembly according to claim 2, wherein: The portion of the gear selection shaft (20) located inside the side operating housing (1) is fixedly connected to a gear selection shift head (18), and the main rod slide bar (2) is provided with a gear selection shift block (19) that matches the gear selection shift head (18).

4. The three-rod pull rod shifting control assembly according to claim 3, wherein: A high and low gear shift head (23) is fixedly connected to the auxiliary rod slide bar (3).

5. The three-rod pull rod shifting control assembly according to claim 4, characterized in that: The portion of the main rod slide bar (2) located outside the side operating housing (1) is sleeved with a sealing sleeve (17).

6. The three-rod pull rod shifting control assembly according to claim 5, wherein: A main operating handle (10) is vertically fixedly connected to the upper end of the main gear adjustment seat (8).

7. The three-rod pull rod gear shifting control assembly according to claim 6, characterized in that: An auxiliary operating handle (11) is vertically fixedly connected to the upper end of the auxiliary gear adjustment seat (9).

8. The three-rod pull rod shift control assembly according to claim 7, wherein: The operating seat (6) is provided with a plurality of fixing holes arranged in parallel.

9. The three-rod pull rod gear shifting control assembly according to claim 8, wherein: A longitudinal sliding limit bolt (13) is threadedly connected to the operating seat (6), and the end of the longitudinal sliding limit bolt (13) is frictionally abutted against the end of the gear selection adjustment seat (7).

10. The three-rod pull rod shift control assembly according to claim 9, characterized in that: A torsion spring (12) is sleeved on the hinge center of the gear selection and adjustment seat (7), and two ends of the torsion spring (12) respectively abut against the gear selection and adjustment seat (7) and the longitudinal sliding limit bolt (13).

Images