CN210284426U - Crawler-type tractor chassis - Google Patents
Crawler-type tractor chassis Download PDFInfo
- Publication number
- CN210284426U CN210284426U CN201921434394.6U CN201921434394U CN210284426U CN 210284426 U CN210284426 U CN 210284426U CN 201921434394 U CN201921434394 U CN 201921434394U CN 210284426 U CN210284426 U CN 210284426U
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- frame
- support frame
- spring
- guide rod
- track
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Abstract
The utility model provides a crawler-type tractor chassis, including frame, track, the track inboard is equipped with the bearing wheel support frame, be equipped with the guide arm on the bearing wheel support frame, the guide arm passes the guide arm via hole in the frame, spring and last spring have been cup jointed down on the guide arm, the spring is located the frame below down, it is located the frame top to go up the spring, the guide arm upper end is equipped with the external screw thread, threaded connection has the nut on the external screw thread. Due to the action of the guide rod and the lower spring, the gap between the rack and the ground is relatively high, and the application range is widened. The upper spring ensures that the lower spring and the frame or the bearing wheel support frame are effectively attached under the conditions of bumping and the like, so that the lower spring is accepted uniformly, and the lower spring is prevented from being impacted suddenly to reduce the service life. The lower spring is longer, can independently make the change to the topography, keeps the frame steady. Simple structure and convenient maintenance.
Description
Technical Field
The utility model relates to the field of agricultural machinery.
In particular to a crawler tractor chassis.
Background
The crawler tractor is a common tractor at present, has the advantages of small pressure to unit area of soil, good adhesion performance to soil, difficult slipping and the like, has better passing performance in the moist and soft soil and high traction efficiency.
Current track type tractor suspensions typically employ a design in which each load bearing wheel is suspended individually, which has the following disadvantages.
1. The ground clearance of the frame is small, and the frame can not adapt to crops needing high-clearance equipment.
2. Every bearing wheel hangs the stroke alone shorter, and the buffering effect is relatively poor, and can only adapt to the topography of relatively gentle, can not keep the frame steady.
3. The suspension is easy to be impacted, is fragile and bad, has a complex mechanism and is inconvenient to maintain.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the weak point of above-mentioned conventional art, provide a crawler tractor chassis, the ground clearance is higher, operates steadily.
The purpose of the utility model is achieved through the following technical measures:
the utility model provides a crawler-type tractor chassis, includes frame, track, the track inboard is equipped with bearing wheel support frame, be equipped with the guide arm on the bearing wheel support frame, the guide arm passes the guide arm via hole in the frame, spring and last spring have been cup jointed down on the guide arm, the spring is located the frame below down, it is located the frame top to go up the spring, the guide arm upper end is equipped with the external screw thread, threaded connection has the nut on the external screw thread.
As an improvement: the guide rod is further sleeved with a first washer, a second washer, a third washer and a fourth washer, the first washer is located between the lower spring and the bearing wheel support frame, the second washer is located between the lower spring and the rack, the third washer is located between the upper spring and the rack, and the fourth washer is located between the upper spring and the nut.
As an improvement: the crawler belt is characterized in that a driving wheel is further arranged on the inner side of the crawler belt, a driving wheel supporting frame is arranged on the rack, the driving wheel is arranged on the driving wheel supporting frame, a power device is arranged on the rack, and the driving wheel is in transmission connection with the power device.
As an improvement: the power device comprises an engine, the output end of the engine is connected with a gearbox, the output end of the gearbox is connected with a first chain wheel, the driving wheel is connected with a second chain wheel, and a transmission chain is arranged between the first chain wheel and the second chain wheel.
As an improvement: the engine and the gearbox rack are located above the rack, the driving wheel supporting frame is located below the rack, and a transmission chain through hole for allowing a transmission chain to pass through is formed in the rack.
As an improvement: the bearing wheel support frame is provided with a guide rod support frame, the guide rod support frame is horizontally arranged, and the guide rod is arranged on the guide rod support frame.
As an improvement: the inner side of the track is also provided with a driven wheel, the rack is provided with a driven wheel support frame, and the driven wheel is arranged on the driven wheel support frame.
As an improvement: and the bearing wheel support frame is provided with a bearing wheel.
Compared with the prior art, due to the adoption of the technical scheme, the utility model has the advantages that.
1. Due to the action of the guide rod and the lower spring, the gap between the rack and the ground is relatively high, and the application range is widened.
2. The upper spring ensures that the lower spring and the frame or the bearing wheel support frame are effectively attached under the conditions of bumping and the like, so that the lower spring is accepted uniformly, and the lower spring is prevented from being impacted suddenly to reduce the service life.
3. When the crawler belts encounter complex terrains, the two crawler belts are supported by respective lower springs, the lower springs are longer, the terrains can be independently changed, and the machine frame is kept stable.
4. Simple structure and convenient maintenance.
The present invention will be further described with reference to the accompanying drawings and the following detailed description.
Drawings
Fig. 1 is a schematic structural diagram of a crawler tractor chassis of the present invention.
FIG. 2 is a schematic structural view of section A-A in FIG. 1.
FIG. 3 is a schematic structural view of section B-B of FIG. 1.
Fig. 4 is a schematic structural view of section C-C in fig. 2.
In the figure: 1-a frame; 2-driving wheel support frame; 3-driving wheel; 4-a crawler belt; 5-bearing wheel support frame; 6-bearing wheels; 7-a guide rod; 8-lower spring; 9-a third gasket; 10-a driven wheel; 11-driven wheel support frame; 12-a second gasket; 13-spring up; 14-external threads; 15-a nut; 16-a first gasket; 17-an engine; 18-a gearbox; 19-a first sprocket; 20-a drive chain; 21-a transmission chain via hole; 22-a second sprocket; 23-a guide rod via hole; 24-a guide bar support; 25-fourth gasket.
Detailed Description
Example (b): as shown in fig. 1, a track-type tractor chassis comprises a frame 1 and two tracks 4.
The inner side of each crawler 4 is provided with a driving wheel 3, a bearing wheel support frame 5 and a driven wheel 10 in sequence. Four bearing wheels 6 are arranged on the bearing wheel support frame 5, and the bearing wheels 6 are rotatably connected with the bearing wheel support frame 5.
As shown in the attached drawing 2, two driving wheel support frames 2 are arranged on the frame 1, the driving wheel 3 is arranged on the driving wheel support frames 2, a power device is arranged on the frame 1, and the driving wheel 3 is in transmission connection with the power device.
The power device comprises an engine 17, the output end of the engine 17 is connected with a gearbox 18, the output end of the gearbox 18 is connected with a first chain wheel 19, the driving wheel 3 is connected with a second chain wheel 22, and a transmission chain 20 is arranged between the first chain wheel 19 and the second chain wheel 22.
The gearbox 18 has two outputs, and the engine 17 and the gearbox 18 are both of the prior art and will not be described in detail herein.
The engine 17 and the gearbox 18 are arranged above the frame 1, the driving wheel support frame 2 is arranged below the frame 1, and two transmission chain through holes 21 for allowing the transmission chains 20 to pass through are formed in the frame 1.
As shown in fig. 3, a guide rod 7 is arranged on the bearing wheel support frame 5.
Specifically, a guide rod support frame 24 is arranged on the bearing wheel support frame 5, the guide rod support frame 24 is horizontally arranged, and the guide rod 7 is arranged on the guide rod support frame 24.
The number of the guide rods 7 is four, and two guide rods 7 are arranged on each guide rod support frame 24.
The guide rod 7 penetrates through a guide rod through hole 23 in the rack 1, a lower spring 8 and an upper spring 13 are sleeved on the guide rod 7, the lower spring 8 is located below the rack 1, the upper spring 13 is located above the rack 1, an external thread 14 is arranged at the upper end of the guide rod 7, and a nut 15 is connected to the external thread 14 in a threaded mode.
The guide rod 7 is further sleeved with a first washer 16, a second washer 12, a third washer 9 and a fourth washer 25, the first washer 16 is located between the lower spring 8 and the bearing wheel support frame 5, the second washer 12 is located between the lower spring 8 and the rack 1, the third washer 9 is located between the upper spring 13 and the rack 1, and the fourth washer 25 is located between the upper spring 13 and the nut 15.
As shown in fig. 4, a driven wheel support frame 11 is arranged on the frame 1, the driven wheel 10 is arranged on the driven wheel support frame 11, and the driven wheel support frame 11 is located below the frame 1.
The utility model discloses when using, when track 4 meets and strikes, lower spring 8 is by compression deformation, for frame 1 provides the buffering, and upper spring 13 guarantees that lower spring 8 keeps effectively laminating under the circumstances such as jolt with frame 1 or bearing wheel support frame 5, makes lower spring 8 accept evenly, prevents that lower spring 8 from receiving the impact suddenly and reducing life.
When the crawler belt 4 encounters complex terrain, the two crawler belts are supported by the respective lower springs 8, so that the terrain can be independently changed, and the machine frame 1 is kept stable.
In addition, due to the action of the guide rod 7 and the lower spring 8, the gap between the rack 1 and the ground is relatively high, and the application range is widened.
While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention, and should not be considered as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should fall within the patent coverage of the present invention.
Claims (8)
1. The utility model provides a track type tractor chassis, includes frame (1), track (4), its characterized in that: the crawler belt is characterized in that a bearing wheel supporting frame (5) is arranged on the inner side of the crawler belt (4), a guide rod (7) is arranged on the bearing wheel supporting frame (5), the guide rod (7) penetrates through a guide rod via hole (23) in the rack (1), a lower spring (8) and an upper spring (13) are sleeved on the guide rod (7), the lower spring (8) is located below the rack (1), the upper spring (13) is located above the rack (1), an external thread (14) is arranged at the upper end of the guide rod (7), and a nut (15) is connected to the external thread (14) in a threaded manner.
2. The track-type tractor chassis of claim 1, wherein: the guide rod (7) is further sleeved with a first washer (16), a second washer (12), a third washer (9) and a fourth washer (25), the first washer (16) is located between the lower spring (8) and the bearing wheel support frame (5), the second washer (12) is located between the lower spring (8) and the rack (1), the third washer (9) is located between the upper spring (13) and the rack (1), and the fourth washer (25) is located between the upper spring (13) and the nut (15).
3. The track-type tractor chassis of claim 1, wherein: the crawler belt (4) is characterized in that an driving wheel (3) is further arranged on the inner side of the crawler belt (4), a driving wheel support frame (2) is arranged on the rack (1), the driving wheel (3) is arranged on the driving wheel support frame (2), a power device is arranged on the rack (1), and the driving wheel (3) is in transmission connection with the power device.
4. The track-type tractor chassis of claim 3, wherein: the power device comprises an engine (17), the output end of the engine (17) is connected with a gearbox (18), the output end of the gearbox (18) is connected with a first chain wheel (19), the driving wheel (3) is connected with a second chain wheel (22), and a transmission chain (20) is arranged between the first chain wheel (19) and the second chain wheel (22).
5. The track-type tractor chassis of claim 4, wherein: the engine (17) and the gearbox (18) are arranged above the frame (1), the driving wheel supporting frame (2) is arranged below the frame (1), and a transmission chain through hole (21) for allowing the transmission chain (20) to pass through is formed in the frame (1).
6. The track-type tractor chassis of one of claims 1 to 5, wherein: the bearing wheel support frame (5) is provided with a guide rod support frame (24), the guide rod support frame (24) is horizontally arranged, and the guide rod (7) is arranged on the guide rod support frame (24).
7. The track-type tractor chassis of one of claims 1 to 5, wherein: the inner side of the crawler belt (4) is further provided with a driven wheel (10), the rack (1) is provided with a driven wheel support frame (11), and the driven wheel (10) is arranged on the driven wheel support frame (11).
8. The track-type tractor chassis of one of claims 1 to 5, wherein: and the bearing wheel support frame (5) is provided with a bearing wheel (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921434394.6U CN210284426U (en) | 2019-08-31 | 2019-08-31 | Crawler-type tractor chassis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921434394.6U CN210284426U (en) | 2019-08-31 | 2019-08-31 | Crawler-type tractor chassis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210284426U true CN210284426U (en) | 2020-04-10 |
Family
ID=70063903
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921434394.6U Active CN210284426U (en) | 2019-08-31 | 2019-08-31 | Crawler-type tractor chassis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210284426U (en) |
-
2019
- 2019-08-31 CN CN201921434394.6U patent/CN210284426U/en active Active
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