CN219911714U - Gear selecting and shifting device for crawler-type chassis vehicle - Google Patents
Gear selecting and shifting device for crawler-type chassis vehicle Download PDFInfo
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- CN219911714U CN219911714U CN202321030599.4U CN202321030599U CN219911714U CN 219911714 U CN219911714 U CN 219911714U CN 202321030599 U CN202321030599 U CN 202321030599U CN 219911714 U CN219911714 U CN 219911714U
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- 230000007246 mechanism Effects 0.000 claims abstract description 53
- 230000008859 change Effects 0.000 claims description 26
- 230000008878 coupling Effects 0.000 claims description 6
- 238000010168 coupling process Methods 0.000 claims description 6
- 238000005859 coupling reaction Methods 0.000 claims description 6
- 238000009434 installation Methods 0.000 description 13
- 239000012208 gear oil Substances 0.000 description 6
- 239000003921 oil Substances 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000010720 hydraulic oil Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
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- Gear-Shifting Mechanisms (AREA)
Abstract
The utility model discloses a gear selecting and shifting device of a crawler chassis vehicle, which comprises a gear shifting rod, a gear selecting and shifting mechanism, a gear shifting mechanism and a connecting mechanism, wherein the gear shifting rod is arranged in a cab of the crawler chassis vehicle, the gear selecting and shifting mechanism is used for providing gear shifting support for the gear shifting rod, the gear shifting mechanism is used for controlling the gear position of the crawler chassis vehicle, the connecting mechanism is used for connecting the gear selecting and shifting mechanism and the gear shifting mechanism, the gear selecting and shifting mechanism corresponds to the gear shifting rod and is assembled in the cab of the crawler chassis vehicle, the gear shifting mechanism is arranged on a gearbox body of the crawler chassis vehicle, and the connecting mechanism is positioned between the gear selecting and shifting mechanism and the gear shifting mechanism.
Description
Technical Field
The utility model relates to the technical field of gear shifting devices, in particular to a gear selecting and shifting device of a crawler chassis vehicle.
Background
In the prior art, most of gear selecting and shifting control mechanisms of a crawler chassis vehicle are operated by a rigid rod system, the existing rigid rod system is generally limited in position and inflexible in layout, in a vehicle with a front overturning cab requirement, structural design and arrangement are difficult, the rigid rod system control defects are that interference is easy to occur with other systems when the rigid rod system control defects are arranged, gear selecting and shifting are laborious, namely when the overturning requirement exists in a cab on the crawler chassis vehicle, the defects of the rigid rod system control are as follows: the rigid rod system is easy to cause the condition of difficult gear engagement or incapability of gear engagement due to the problems of accessory manufacturing quality and complex layout; the gear-shifting control handle in the cab is far away from the controlled gear-shifting rod piece, the layout of the rigid rod system is difficult, on one hand, the hinge point is required to be increased to avoid interference with other parts, on the other hand, the friction force between the rod systems is increased due to the fact that the middle hinge point is increased, the efficiency is reduced, the dead weight is increased, and maintenance is difficult.
The application number is: the utility model patent of China 201610898710.X discloses an automatic gear shifting device of a fixed-axis gearbox of a tracked vehicle and a use method, wherein the automatic gear shifting device adopts a hydraulic driving mode and comprises a gearbox, a control system and an integrated gear selecting and shifting driving device, and the integrated gear selecting and shifting driving device is arranged on the gearbox; the control system comprises an electronic control unit ECU and an electromagnetic valve, and the electromagnetic valve is arranged on the integrated gear selecting and shifting driving device. However, the automatic gear shifting device of the fixed-axis gearbox of the tracked vehicle is complex in structure, the rigid rod system is adopted as a gear selecting and shifting control mechanism of the tracked vehicle, the arrangement position is limited, the gear is difficult to be engaged or the gear cannot be engaged easily due to the problems of accessory manufacturing quality and complex layout, the layout is difficult, the hinge point is easy to be increased to avoid when the gear is interfered with other parts, friction between the rod systems is increased due to the fact that the hinge point is increased, the efficiency is reduced, the dead weight is increased, and the maintenance is difficult.
Disclosure of Invention
The utility model aims to provide a gear selecting and shifting device of a crawler chassis vehicle.
In order to achieve the above purpose, the technical scheme provided by the utility model is as follows:
the utility model provides a crawler chassis vehicle selects gearshift, includes the selector lever, the selector lever disposes in crawler chassis vehicle's driver's cabin, still including be used for the selector lever provides the gear shifting mechanism of shifting support, be used for controlling the gearshift of crawler chassis vehicle gear and be used for connecting the coupling mechanism of selecting gearshift and gearshift, select the gearshift to correspond the selector lever is assembled in crawler chassis vehicle's driver's cabin, and the gearshift disposes on crawler chassis vehicle's gearbox body, and coupling mechanism is located and selects gearshift and gearshift between the gearshift.
The gear selecting and shifting mechanism comprises a gear shifting installation frame and front gear shifting joints, the gear shifting installation frame is assembled in a cab of the crawler-type chassis vehicle, a gear shifting rod is arranged on the upper portion of the gear shifting installation frame and is arranged in the cab of the crawler-type chassis vehicle through the gear shifting installation frame, the front gear shifting joints are provided with three groups, and the three groups of front gear shifting joints are arranged at the lower portion of one side of the gear shifting installation frame at intervals side by side.
The gear shifting device comprises a gear shifting mounting rack, and is characterized by further comprising handle gear shifting pull rods, wherein three groups of front gear shifting joints are arranged corresponding to three groups of handle gear shifting pull rods, the three groups of handle gear shifting pull rods are arranged at intervals in the middle of the gear shifting mounting rack, the three groups of handle gear shifting pull rods are respectively connected with the three groups of front gear shifting joints, the three groups of handle gear shifting pull rods and the gear shifting rods form a gear shifting handle together, and the gear shifting handle adopts a gear handle type layout.
The speed change mechanism comprises a speed change valve body, a mechanical pull rod and a hydraulic reversing valve, wherein the speed change valve body is arranged on a speed change box body of the crawler chassis vehicle, the mechanical pull rod is arranged at one end of the speed change valve body, the hydraulic reversing valve is provided with two groups, and the two groups of the hydraulic reversing valves are arranged side by side at one end of the speed change valve body, which is provided with the mechanical pull rod.
The valve body gear shifting pull rod is provided with three groups corresponding to the three groups of handle gear shifting pull rods, and the three groups of valve body gear shifting pull rods are respectively connected with the mechanical pull rod and the two groups of hydraulic reversing valves.
The rear gear shifting joint is provided with three groups corresponding to the three groups of valve body gear shifting pull rods, and the three groups of rear gear shifting joints are respectively connected with the three groups of valve body gear shifting pull rods.
The connecting mechanism comprises three groups of push-pull flexible shafts and connecting nuts, the three groups of push-pull flexible shafts are respectively arranged between the three groups of front shifting joints and the three groups of rear shifting joints, two ends of the push-pull flexible shafts are respectively connected with the corresponding front shifting joints and the corresponding rear shifting joints, the three groups of connecting nuts are respectively arranged on the corresponding push-pull flexible shafts, each group of connecting nuts is composed of two nuts, and the three groups of connecting nuts are respectively arranged at the joints of the three groups of push-pull flexible shafts, the corresponding front shifting joints and the corresponding rear shifting joints.
The rear gear shifting joint is arranged on the U-shaped support through the U-shaped clamping groove.
The gear shifting mounting rack is characterized in that a gear shifting limiting groove is formed in the upper end of the gear shifting mounting rack, and the gear shifting rod is positioned in the gear shifting limiting groove to form a gear selecting and shifting handle structure in a gear handle type layout.
The beneficial effects of the utility model are as follows:
simple structure, through selecting gearshift, gearshift and coupling mechanism cooperation, constitute flexible layout's gearshift, can realize the operation of shifting of remote distance, have simple structure, the transmission force is reliable, take up an area of the space little, arrange nimble characteristics, easily assembly and adjustment, save material, processing is simple and convenient, the intermediate hinge is less, effectively alleviate gearshift's dead weight, easy operation, easily popularization and use, spatial layout is suitable, can satisfy the upset driver's cabin and select the handle of shifting and the separation demand of change-speed valve, can realize shifting of machinery and hydraulic pressure two parts by a transfer lever.
Drawings
FIG. 1 is a schematic view of the overall structure of the present utility model;
FIG. 2 is a schematic illustration of the engagement of the shift select mechanism with the connecting mechanism of the present utility model;
FIG. 3 is a schematic illustration of the engagement of the shift lever with the shift mount of the present utility model.
In the figure: 1. a shift lever; 2. a gear shifting mounting frame; 3. a front shift joint; 4. a handle shift lever; 5. a speed change valve body; 6. a mechanical pull rod; 7. a hydraulic reversing valve; 8. a valve body shift lever; 9. a rear shift joint; 10. push-pull flexible shaft; 11. a coupling nut; 12. u-shaped bracket.
Detailed Description
The utility model is described in further detail below with reference to the accompanying drawings,
the utility model relates to a gear selecting and shifting device of a crawler chassis vehicle, which comprises a gear shifting lever 1, wherein the gear shifting lever 1 is arranged in a cab of the crawler chassis vehicle, a gear selecting and shifting mechanism for providing gear shifting support for the gear shifting lever 1, a gear shifting mechanism for controlling the gear position of the crawler chassis vehicle and a connecting mechanism for connecting the gear selecting and shifting mechanism and the gear shifting mechanism, the gear selecting and shifting mechanism is correspondingly arranged in the cab of the crawler chassis vehicle, the gear shifting mechanism is arranged on a gearbox body of the crawler chassis vehicle, and the connecting mechanism is positioned between the gear selecting and shifting mechanism and the gear shifting mechanism.
The gear selecting and shifting mechanism comprises a gear shifting installation frame 2 and a front gear shifting joint 3, wherein the gear shifting installation frame 2 is assembled in a cab of the crawler chassis vehicle, a gear shifting rod 1 is arranged at the upper part of the gear shifting installation frame 2 and is arranged in the cab of the crawler chassis vehicle through the gear shifting installation frame 2, the front gear shifting joint 3 is provided with three groups, the three groups of front gear shifting joints 3 are arranged at the lower part of one side of the gear shifting installation frame 2 side by side at intervals, the gear selecting and shifting mechanism is matched with the front gear shifting joint 3 through the gear shifting installation frame 2 to form a gear selecting and shifting structure in the cab of the crawler chassis vehicle, the gear shifting installation frame 2 is used for providing installation support for the gear shifting rod 1 and the front gear shifting joint 3, and the front gear shifting joint 3 is used as a connecting foundation on the gear selecting and shifting mechanism to be connected with a connecting mechanism, and the gear selecting and shifting mechanism is matched with the connecting mechanism in a schematic diagram shown in fig. 2.
The gear shifting device further comprises a handle gear shifting pull rod 4, wherein three groups of handle gear shifting pull rods 4 are arranged corresponding to the three groups of front gear shifting joints 3, the three groups of handle gear shifting pull rods 4 are arranged in the middle of the gear shifting mounting frame 2 at intervals, the three groups of handle gear shifting pull rods 4 are respectively connected with the three groups of front gear shifting joints 3, the three groups of handle gear shifting pull rods 4 and the gear shifting rod 1 jointly form a gear shifting selecting handle, the gear shifting selecting handle adopts a gear shifting handle layout, the handle gear shifting pull rods 4 are used for connecting the gear shifting rod 1 with the front gear shifting joints 3 to form the gear shifting selecting handle, and the gear shifting rod 1 and the gear shifting mounting frame 2 are matched with each other in a schematic diagram shown in fig. 3.
The speed change mechanism comprises a speed change valve body 5, a mechanical pull rod 6 and a hydraulic reversing valve 7, wherein the speed change valve body 5 is arranged on a speed change box body of the crawler chassis vehicle, the mechanical pull rod 6 is arranged at one end of the speed change valve body 5, the hydraulic reversing valve 7 is provided with two groups, the two groups of hydraulic reversing valves 7 are arranged at one end of the speed change valve body 5, which is provided with the mechanical pull rod 6, the speed change mechanism is matched with the speed change valve body 5, the mechanical pull rod 6 and the hydraulic reversing valve 7 to control the speed change box, so that gear control of the crawler chassis vehicle is realized, the speed change valve body 5 is used for providing mounting support for the mechanical pull rod 6 and the hydraulic reversing valve 7 to control the speed change box, the mechanical pull rod 6 is used for realizing mechanical control of the speed change valve body 5, and the hydraulic reversing valve 7 is used for realizing hydraulic control of the speed change valve body 5.
The valve body gear shifting pull rod 8 is provided with three groups corresponding to the three groups of handle gear shifting pull rods 4, the three groups of valve body gear shifting pull rods 8 are respectively connected with the mechanical pull rod 6 and the two groups of hydraulic reversing valves 7, and the valve body gear shifting pull rod 8 is used as a connecting foundation on the speed changing valve body 5 to be connected with the mechanical pull rod 6 and the hydraulic reversing valves 7.
The rear gear shifting joint 9 is provided with three groups corresponding to three groups of valve body gear shifting pull rods 8, the three groups of rear gear shifting joints 9 are respectively connected with the three groups of valve body gear shifting pull rods 8, and the rear gear shifting joints 9 are used for connecting a connecting mechanism with the mechanical pull rods 6 and the hydraulic reversing valve 7 through the valve body gear shifting pull rods 8.
The connecting mechanism comprises three groups of push-pull flexible shafts 10 and connecting nuts 11, wherein the three groups of push-pull flexible shafts 10 are respectively arranged between the three groups of front shifting joints 3 and the three groups of rear shifting joints 9, two ends of the three groups of push-pull flexible shafts 10 are respectively connected with the corresponding front shifting joints 3 and rear shifting joints 9, the three groups of connecting nuts 11 are respectively arranged corresponding to the three groups of push-pull flexible shafts 10, each group of connecting nuts 11 consists of two nuts, the three groups of connecting nuts 11 are respectively arranged at the joints of the three groups of push-pull flexible shafts 10 and the corresponding front shifting joints 3 and rear shifting joints 9, the connecting mechanism is matched with the connecting nuts 11 through the push-pull flexible shafts 10 to form a connecting structure in the gear selecting and shifting device, the push-pull flexible shafts 10 are used as flexible connecting structures in the gear selecting and shifting device, and the connecting nuts 11 are used as connecting structures at the ends of the push-pull flexible shafts 10 to connect the push-pull flexible shafts 10 with the corresponding front shifting joints 3 and rear shifting joints 9.
The rear shifting joint 9 is arranged on the U-shaped bracket 12 through the U-shaped clamping groove, wherein the U-shaped bracket 12 is used for providing mounting support for the rear shifting joint 9 and limiting the rear shifting joint 9.
The gear shifting mounting frame 2 upper end is equipped with the spacing groove of shifting, and gear shift lever 1 is located the spacing inslot of shifting in order to constitute the selection of shelves handle structure of shelves handle formula overall arrangement, and wherein, the spacing groove of shifting is used for spacing gear shift lever 1.
The flexible shaft can affect power transmission under the conditions of overlong connecting distance and overlarge bent angle, so that accurate reserved distance needs to be calculated according to actual conditions.
The gear selecting and shifting device is divided into I, II, III, IV, V gear and reverse gear, the reverse gear is D gear, six gears are altogether, marks are arranged on the periphery of a gear shifting limit groove at the upper end of a gear shifting mounting frame 2 corresponding to each gear, the speed changing valve consists of two parts, namely a mechanical pull rod 6 for operating the I gear and the reverse gear, and two hydraulic reversing valves 7 for operating the II, III, IV and V gears.
Working principle:
when the gear box of the crawler chassis vehicle is in neutral gear, the gear lever 1 of the gear selecting and shifting handle is positioned in the middle of the gear shifting mounting frame 2, and when the gear lever 1 moves to the first gear, the corresponding push-pull flexible shaft 10 pushes the mechanical pull rod 6 to enable the gear box to be switched to the first gear, the gear lever 1 moves to the reverse gear, and when the corresponding push-pull flexible shaft 10 pulls the mechanical pull rod 6 to enable the gear box to be switched to the reverse gear; when the gear lever 1 moves to the II or IV gear, the corresponding push-pull flexible shaft 10 pushes the corresponding hydraulic reversing valve 7 to move towards the inside of the gear shifting valve body 5, the II or IV gear oil inlet channel is opened, the oil inlet cavity is communicated with the II or IV gear oil inlet channel, hydraulic oil enters the hydraulic shifting clutch from the oil inlet through the oil inlet cavity and the II or IV gear oil inlet channel, and the friction plates are combined to enable the gear shifting box to be hung on the II or IV gear; when the gear shift lever 1 moves to the III or V gear, the corresponding push-pull flexible shaft 10 pulls the corresponding hydraulic reversing valve 7 to move in the direction away from the inside of the gear shift valve body 5, the III or V gear oil inlet channel is opened, the oil inlet cavity is communicated with the III or V gear oil inlet channel, hydraulic oil enters the hydraulic gear shift clutch from the oil inlet through the oil inlet cavity and the III or V gear oil inlet channel, and the friction plates are combined to enable the gear shift box to be hung on the III or V gear.
The utility model has the advantages that the structure is simple, the gear selecting and shifting mechanism, the speed changing mechanism and the connecting mechanism are matched to form a flexible-layout gear shifting structure, the remote gear shifting operation can be realized, the structure is simple, the transmission force is reliable, the occupied space is small, the arrangement is flexible, the assembly and the adjustment are easy, the material is saved, the processing is simple and convenient, the middle hinge point is fewer, the dead weight of the gear shifting device is effectively lightened, the operation is easy, the popularization and the use are easy, the space layout is proper, the separation requirement of a gear selecting and shifting handle and a speed changing valve of a turnover cab can be met, and the gear shifting of a mechanical part and a hydraulic part can be realized by one gear shifting rod.
The foregoing describes one embodiment of the present utility model in detail, but the disclosure is only a preferred embodiment of the present utility model and should not be construed as limiting the scope of the utility model. All equivalent changes and modifications within the scope of the present utility model are intended to be covered by the present utility model.
Claims (9)
1. The utility model provides a gear shifting device is selected to crawler-type chassis vehicle, includes selector lever (1), selector lever (1) disposes in the driver's cabin of crawler-type chassis vehicle, its characterized in that still including be used for selector lever (1) provides the gear shifting mechanism of shifting support, be used for controlling the gearshift of crawler-type chassis vehicle gear and be used for connecting the coupling mechanism of selecting gearshift and gearshift, select the gearshift to correspond selector lever (1) is assembled in the driver's cabin of crawler-type chassis vehicle, and the gearshift disposes on the gearbox body of crawler-type chassis vehicle, and coupling mechanism is located and selects gearshift and gearshift.
2. A track chassis vehicle gear selector according to claim 1, characterized in that the gear selector comprises a gear selector mounting frame (2) and a front gear selector joint (3), said gear selector mounting frame (2) being fitted in the cab of the track chassis vehicle, said gear lever (1) being arranged in the upper part of said gear selector mounting frame (2) and being arranged in the cab of the track chassis vehicle via said gear selector mounting frame (2), said front gear selector joint (3) being provided with three groups, three groups of said front gear selector joints (3) being arranged side by side at intervals in the lower part of one side of said gear selector mounting frame (2).
3. The gear selecting and shifting device for the crawler-type chassis vehicle according to claim 2, further comprising a handle gear shifting pull rod (4), wherein three groups of the handle gear shifting pull rods (4) are arranged corresponding to three groups of the front gear shifting joints (3), the three groups of the handle gear shifting pull rods (4) are arranged at intervals in the middle of the gear shifting mounting frame (2), the three groups of the handle gear shifting pull rods (4) are respectively connected with the three groups of the front gear shifting joints (3), the three groups of the handle gear shifting pull rods (4) and the gear shifting rod (1) form a gear selecting and shifting handle together, and the gear selecting and shifting handle adopts a gear handle type layout.
4. A gear selector device for a track-type chassis vehicle according to claim 3, characterized in that the gear change mechanism comprises a gear change valve body (5), a mechanical pull rod (6) and a hydraulic reversing valve (7), the gear change valve body (5) is arranged on the gear change box body of the track-type chassis vehicle, the mechanical pull rod (6) is arranged at one end of the gear change valve body (5), the hydraulic reversing valve (7) is provided with two groups, and the two groups of the hydraulic reversing valves (7) are arranged side by side at one end of the gear change valve body (5) provided with the mechanical pull rod (6).
5. A crawler chassis vehicle gear selecting and shifting device according to claim 4, further comprising a valve body gear shifting pull rod (8), wherein the valve body gear shifting pull rod (8) is provided with three groups corresponding to three groups of the handle gear shifting pull rods (4), and the three groups of the valve body gear shifting pull rods (8) are respectively connected with the mechanical pull rod (6) and the two groups of the hydraulic reversing valves (7).
6. A track chassis vehicle gear selector as in claim 5 further comprising a rear shift joint (9), said rear shift joint (9) being provided with three sets corresponding to three sets of said valve body shift levers (8), said three sets of said rear shift joint (9) being respectively connected to three sets of said valve body shift levers (8).
7. The crawler chassis vehicle gear selecting and shifting device according to claim 6, wherein the connecting mechanism comprises a push-pull flexible shaft (10) and connecting nuts (11), the push-pull flexible shaft (10) is provided with three groups, the three groups of push-pull flexible shafts (10) are respectively arranged between the three groups of front gear shifting joints (3) and the three groups of rear gear shifting joints (9) and two ends of the push-pull flexible shafts are respectively connected with the corresponding front gear shifting joints (3) and the corresponding rear gear shifting joints (9), the connecting nuts (11) are respectively provided with three groups of push-pull flexible shafts (10), each group of connecting nuts (11) is composed of two nuts, and the three groups of connecting nuts (11) are respectively arranged at the joints of the three groups of push-pull flexible shafts (10) and the corresponding front gear shifting joints (3) and the corresponding rear gear shifting joints (9).
8. A gear selecting and shifting device for a crawler chassis vehicle according to claim 7, further comprising a U-shaped bracket (12), wherein the U-shaped bracket (12) is configured on the chassis of the crawler chassis vehicle corresponding to the rear gear shifting joint (9), a U-shaped clamping groove is formed in the U-shaped bracket (12), and the rear gear shifting joint (9) is configured on the U-shaped bracket (12) through the U-shaped clamping groove.
9. A gear selecting and shifting device for a crawler chassis vehicle according to claim 8, wherein a gear shifting limit groove is arranged at the upper end of the gear shifting mounting frame (2), and the gear shifting rod (1) is positioned in the gear shifting limit groove to form a gear shifting handle structure in a gear handle arrangement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321030599.4U CN219911714U (en) | 2023-05-04 | 2023-05-04 | Gear selecting and shifting device for crawler-type chassis vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321030599.4U CN219911714U (en) | 2023-05-04 | 2023-05-04 | Gear selecting and shifting device for crawler-type chassis vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219911714U true CN219911714U (en) | 2023-10-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321030599.4U Active CN219911714U (en) | 2023-05-04 | 2023-05-04 | Gear selecting and shifting device for crawler-type chassis vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219911714U (en) |
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2023
- 2023-05-04 CN CN202321030599.4U patent/CN219911714U/en active Active
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