CN220915828U - Floating limiting device for preventing lifting transmission chain from being damaged by pressure - Google Patents
Floating limiting device for preventing lifting transmission chain from being damaged by pressure Download PDFInfo
- Publication number
- CN220915828U CN220915828U CN202322257064.7U CN202322257064U CN220915828U CN 220915828 U CN220915828 U CN 220915828U CN 202322257064 U CN202322257064 U CN 202322257064U CN 220915828 U CN220915828 U CN 220915828U
- Authority
- CN
- China
- Prior art keywords
- limiting
- transmission chain
- sides
- rollers
- vertical edges
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000005540 biological transmission Effects 0.000 title claims abstract description 28
- 230000000149 penetrating effect Effects 0.000 claims abstract description 14
- 238000005096 rolling process Methods 0.000 claims abstract description 12
- 239000000725 suspension Substances 0.000 claims abstract description 10
- 238000009434 installation Methods 0.000 claims description 12
- 230000003028 elevating effect Effects 0.000 claims 3
- 238000000034 method Methods 0.000 description 5
- 240000008042 Zea mays Species 0.000 description 4
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 description 4
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 4
- 235000005822 corn Nutrition 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Harvesting Machines For Root Crops (AREA)
Abstract
The utility model relates to a floating limiting device for preventing a lifting transmission chain from being damaged, which is fixedly arranged at the lower end of a cutting table suspension arm at one side of the transmission chain close to a front lifting device; comprises a limit mounting rack, two limit rollers and two shaft connecting pieces; the whole limiting mounting frame is an inverted U-shaped bracket and consists of an upper transverse edge and two vertical edges positioned at the front side and the rear side, bolt penetrating holes are formed in the upper transverse edge, and the upper transverse edge is fixedly connected with the lower edge of a corresponding header hanging arm through penetrating bolts; coaxial shaft holes are formed in the positions, close to the lower ends, of the vertical edges on the two sides, shaft connection is respectively arranged in the shaft holes on the two sides in a penetrating mode, so that two limiting rollers are rotatably arranged on the inner sides of the vertical edges on the two sides, the two limiting rollers are in rolling contact with the outer surfaces of the side walls, close to the transmission chains of the front lifting device, of the interface channel, and rolling contact points of the two limiting rollers and the side walls of the interface channel are located on the front side and the rear side of the arc-shaped long groove on the side walls. The device has simple structure, small occupied space and better control of the gaps at two sides of the transmission chain.
Description
Technical Field
The utility model belongs to the field of agricultural machinery, relates to a corn harvester, and in particular relates to a floating limiting device for preventing a lifting transmission chain from being damaged.
Background
In the current corn harvester field, when the header device satisfies different scion heights or ground conditions, the header harvesting inclination angle needs to be adjusted. In order to meet the requirements of the angle adjustment of the cutting table, two sides of the rear end of the cutting table are provided with cutting table suspension arms 3, a front lifting device 4 is arranged between cutting table suspension plates at two sides and synchronously rotates along with the cutting table, and a rear lifting device 1 is arranged at the lower rear part of the front lifting device. The rear lifting device is a fixing device. In order to avoid the problem of grain leakage during the transportation of the clusters between the front lifting device and the rear lifting device, an interface channel 2 with four closed sides and capable of floating up and down along with the front lifting device is arranged between the discharge port of the front lifting device and the feed port of the rear lifting device.
The transmission chain of the front lifting device is arranged outside one side of the frame body of the front lifting device and is arranged between the outside of the side wall of the interface channel and the cutting platform suspension arm at the corresponding side. In order to meet the requirement of the front lifting device for up-and-down floating, an arc-shaped long groove 2.1 for a chain wheel shaft of a driving chain wheel 4.1 to pass through is arranged on the side wall of the interface channel.
The matching structure of the front lifting device and the rear lifting device can meet the requirement of up-and-down floating of the header, but the side wall of the extension channel is of a thin plate structure, and the side wall is provided with an arc-shaped long groove. When the clusters pass through the interface channel, outward acting force is inevitably exerted on the side wall of the interface channel, so that the side wall of the interface channel is turned outwards. When the header is adjusted from the upper position to the lower position, the side wall provided with the arc-shaped long groove is turned outwards, so that the descending accommodation space of the transmission chain is reduced, and the problem that the transmission chain is pressed on the corresponding side wall of the interface channel is inevitably caused in the descending process of the header, so that the transmission chain is crushed. The normal operation of the corn harvester is affected.
Disclosure of utility model
The utility model aims to overcome the defects of the prior art and provide the floating limiting device for preventing the damage of the lifting transmission chain, which has the advantages of simple structure, small occupied space and capability of well controlling the gaps at two sides of the transmission chain.
The above object of the present utility model is achieved by the following technical solutions:
A floating limiting device for preventing a lifting transmission chain from being damaged, wherein the floating limiting device is fixedly arranged at the lower end of a cutting table suspension arm at one side of the transmission chain close to a front lifting device; comprises a limit mounting rack, two limit rollers and two shaft connecting pieces; the limiting mounting frame is an inverted U-shaped bracket as a whole and consists of an upper transverse edge and two vertical edges positioned at the front side and the rear side, bolt penetrating holes are formed in the upper transverse edge, and the limiting mounting frame is fixedly connected with the lower edge of the corresponding cutting table suspension arm through penetrating bolts; coaxial shaft holes are formed in the positions, close to the lower ends, of the vertical edges on the two sides, shaft connection is respectively arranged in the shaft holes on the two sides in a penetrating mode, so that two limiting rollers are rotatably arranged on the inner sides of the vertical edges on the two sides, the two limiting rollers are in rolling contact with the outer surfaces of the side walls, close to the transmission chains of the front lifting device, of the interface channel, and rolling contact points of the two limiting rollers and the side walls of the interface channel are located on the front side and the rear side of the arc-shaped long groove on the side walls.
The bolt insertion holes on the upper lateral side are long slot holes extending in the left-right direction.
Moreover, the two rollers adopt bearings, and the two shaft connectors adopt bolts.
Moreover, two vertical edges of the limiting mounting frame are in a triangular shape with wide upper part and narrow lower part, and are obliquely arranged in the direction close to one side of the interface channel from top to bottom.
The utility model has the advantages and positive effects that:
1. The floating limiting device is arranged below the cutting table suspension arm, and can synchronously realize up-and-down movement along with the adjustment of the angle of the cutting table, in the moving process, the outer side surface of one side wall of the interface channel between the two limiting rollers and the front lifting device and the rear lifting device, which is provided with the arc-shaped long groove, is in rolling contact, the distance between the side wall and the corresponding side cutting table suspension arm is ensured, the clearance between two sides of the transmission chain of the front lifting device is ensured, the transmission chain on the front lifting device is prevented from being pressed on the side wall of the interface channel in the descending process of the front lifting device along with the cutting table, and the normal operation of the corn harvester is ensured.
2. The floating limiting device has the advantages of few structural parts, simple structure and small occupied space.
Drawings
FIG. 1 is a state of use reference diagram of the present utility model;
Fig. 2 is a schematic structural view of the present utility model.
Detailed Description
The structure of the present utility model will be further described by way of examples with reference to the accompanying drawings. It should be noted that the present embodiments are illustrative and not restrictive.
Referring to fig. 1-2, the floating limiting device 5 is fixedly mounted at the lower end of the cutting table boom near one side of the transmission chain of the front lifting device, and is arranged at the outer side of the arc-shaped long groove of the interface channel corresponding to one side of the transmission chain of the front lifting device. Mainly comprises a limit mounting frame 5.1 and two limit rollers 5.2. The whole limit installation frame is an inverted U-shaped bracket and consists of an upper transverse edge 5.1.1 and two vertical edges 5.1.2 positioned on the front side and the rear side. The spacing mounting bracket preferably adopts a steel plate integrated bending and forming structure. The upper transverse edge is provided with a front bolt penetrating hole and a rear bolt penetrating hole which are used for penetrating bolts, and the limiting installation frame is fixedly installed below the side cutting table hanging arm through bolts 5.3 (the upper transverse edge of the limiting installation frame is connected with the lower edge of the cutting table hanging arm through bolts). The two vertical edges are provided with shaft holes near the lower ends, and the shaft holes on the two sides are coaxially arranged. The two limiting rollers are respectively arranged at the inner sides of the two vertical edges, the two limiting rollers are respectively connected with the shaft holes of the corresponding side vertical edges through a shaft type connecting piece, the shaft type connecting piece can adopt bolts 5.4 shown in the attached drawings, pin shafts and the like, and the limiting rollers can be rotatably arranged at the inner sides of the corresponding vertical edges by the shaft center. The two limiting rollers are in rolling contact with the outer surface of the side wall of the interface channel, which is close to one side of the transmission chain of the front lifting device, and the rolling contact points of the two limiting rollers and the side wall of the interface channel are positioned at the front side and the rear side of the arc-shaped long groove on the side wall. Through the rolling contact cooperation of the two limit rollers and the side walls of the interface channel, when the front lifting device floats up and down along with the header, the distance between the side wall of the arc-shaped long groove arranged on the interface channel and the boom of the corresponding side header is a fixed safety distance, and the possibility that the transmission chain of the front lifting device is damaged by the pressure spring in the descending process along with the header is eliminated, so that the running performance of the machine is ensured.
The two bolt penetrating holes on the upper transverse edge of the limiting installation frame adopt long groove holes extending along the left-right direction, and fine adjustment of the installation position of the limiting installation frame along the left-right direction can be realized by adopting the long groove holes, so that the two limiting rollers can be conveniently adjusted to a state of rolling contact with the corresponding side wall of the interface channel in the initial installation stage or the subsequent use process, and better adjustability is achieved.
Two vertical edges of the limiting installation frame are in triangular shapes with wide upper part and narrow lower part, and are obliquely arranged in the direction close to one side of the interface channel from top to bottom. The limiting installation frame adopts the structural form, and under the condition of ensuring the structural strength of the limiting installation frame, the rolling contact between two limiting rollers installed on the limiting installation frame and the outer surface of the side wall accessed by the interface is ensured.
Although the embodiments of the present utility model and the accompanying drawings have been disclosed for illustrative purposes, those skilled in the art will appreciate that: various substitutions, changes and modifications are possible without departing from the spirit of the utility model and the appended claims, and therefore the scope of the utility model is not limited to the embodiments and the disclosure of the drawings.
Claims (4)
1. A prevent floating stop device that lift transmission chain was crushed, its characterized in that: the floating limiting device is fixedly arranged at the lower end of the cutting table suspension arm at one side of the transmission chain close to the front lifting device; comprises a limit mounting rack, two limit rollers and two shaft connecting pieces; the limiting mounting frame is an inverted U-shaped bracket as a whole and consists of an upper transverse edge and two vertical edges positioned at the front side and the rear side, bolt penetrating holes are formed in the upper transverse edge, and the limiting mounting frame is fixedly connected with the lower edge of the corresponding cutting table suspension arm through penetrating bolts; coaxial shaft holes are formed in the positions, close to the lower ends, of the vertical edges on the two sides, shaft connection is respectively arranged in the shaft holes on the two sides in a penetrating mode, so that two limiting rollers are rotatably arranged on the inner sides of the vertical edges on the two sides, the two limiting rollers are in rolling contact with the outer surfaces of the side walls, close to the transmission chains of the front lifting device, of the interface channel, and rolling contact points of the two limiting rollers and the side walls of the interface channel are located on the front side and the rear side of the arc-shaped long groove on the side walls.
2. The floating limiting device for preventing crush of an elevating transmission chain according to claim 1, wherein: the bolt penetrating holes on the upper transverse edge are long slot holes extending along the left-right direction.
3. The floating limiting device for preventing crush of an elevating transmission chain according to claim 1, wherein: the two rollers adopt bearings, and the two shaft connectors adopt bolts.
4. The floating limiting device for preventing crush of an elevating transmission chain according to claim 1, wherein: two vertical edges of the limiting installation frame are in triangular shapes with wide upper part and narrow lower part, and are obliquely arranged in the direction close to one side of the interface channel from top to bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322257064.7U CN220915828U (en) | 2023-08-22 | 2023-08-22 | Floating limiting device for preventing lifting transmission chain from being damaged by pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322257064.7U CN220915828U (en) | 2023-08-22 | 2023-08-22 | Floating limiting device for preventing lifting transmission chain from being damaged by pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220915828U true CN220915828U (en) | 2024-05-10 |
Family
ID=90964472
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322257064.7U Active CN220915828U (en) | 2023-08-22 | 2023-08-22 | Floating limiting device for preventing lifting transmission chain from being damaged by pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220915828U (en) |
-
2023
- 2023-08-22 CN CN202322257064.7U patent/CN220915828U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN220915828U (en) | Floating limiting device for preventing lifting transmission chain from being damaged by pressure | |
| CN101591923A (en) | Cutter suction dredger dual-yoke formula heavy steel pile chassis | |
| CN107299622A (en) | A kind of cover type hydraulic pressure dam | |
| CN208454411U (en) | A kind of vehicle body self-stabilization system of shift-forward type electri forklift | |
| CN206932588U (en) | Ridging film mulching integrated machine | |
| CN208480950U (en) | A kind of lifting platform for cradle | |
| CN211077547U (en) | Conveying mechanism for turning food | |
| CN207802701U (en) | A kind of adjustable tractor hanging | |
| CN106904395A (en) | A kind of liftable section bar conveyer | |
| CN211309823U (en) | Cantilever type belt pressing device of large-inclination-angle large belt conveyor | |
| CN111305109A (en) | Vertical lifting type steel wall for anti-terrorism | |
| CN112355388B (en) | Slide rail type telescopic guide plate table | |
| US3818618A (en) | Linkage for ground positioning of an earth scraper elevator | |
| CN110972698A (en) | Chinese cabbage harvester | |
| CN209384869U (en) | The adjustable hanging device of the external driving device of electrically operated gate | |
| CN201072914Y (en) | Turning, lifting and lowering device of corn picking platform | |
| CN111295959A (en) | External strong-pressure horizontal cylinder lifter for tractor | |
| CN201004830Y (en) | Corn harvesting machine installed with a peeling device | |
| CN201050050Y (en) | Leveler icebreaking device | |
| CN2926140Y (en) | Self-adjusting plow-type unloader | |
| CN220598533U (en) | Improved hanging basket structure of soft landing device | |
| CN212950553U (en) | Axle assembly with raise air chamber bearing structure | |
| CN219344693U (en) | Shovel plate of tunneling machine | |
| CN205575109U (en) | Linkage tilting mechanism | |
| CN205736718U (en) | A kind of attachment structure of the lower control arm of vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |