CN212374413U - Equal contact stress clamping and conveying device - Google Patents
Equal contact stress clamping and conveying device Download PDFInfo
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- CN212374413U CN212374413U CN202021209453.2U CN202021209453U CN212374413U CN 212374413 U CN212374413 U CN 212374413U CN 202021209453 U CN202021209453 U CN 202021209453U CN 212374413 U CN212374413 U CN 212374413U
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- conveyer belt
- air bag
- contact stress
- bag body
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Abstract
The utility model discloses a contact stress centre gripping conveyor waits, including the conveying mechanism of controlling two sets of symmetrical arrangement, every group conveying mechanism is provided with the gasbag body including a pair of front and back arrangement's initiative gyro wheel and driven cylinder, encircles in the outer conveyer belt of main, driven cylinder, is provided with the air vent of mutual intercommunication on conveyer belt and gasbag body, supports the air duct in the conveyer belt, supports the air duct and still is used for inflating for the gasbag body when supporting the conveyer belt support the air duct and communicate with each other with the air supply. The utility model discloses when the different variety vegetables of results, can adjust centre gripping contact stress through adjusting atmospheric pressure to improve the commonality. The air sac body can have larger deformation size, so the air sac body can adapt to the size of a stem or the feeding amount in a larger range, and the universality can be improved.
Description
Technical Field
The utility model relates to a vegetables harvesting apparatus, especially a contact stress centre gripping conveyor waits.
Background
The orderly harvesting of stem leaf vegetables generally adopts flexible clamping conveyor belts to finish orderly collection and conveying of vegetables, for example, patents CN201621390378.8, CN201910159271.4, CN201821348199.7 and CN201910127937.8, the basic structure of which is two opposite flexible conveyor belts walking in the same direction, and the conveyor belts generate pretension by using end supporting rollers and middle floating rollers, as shown in fig. 1, when vegetable stems are positioned between the two flexible conveyor belts, the conveyor belts generate bending deformation, and at the moment, the tension of the conveyor belts can apply pressure to the stems so as to generate clamping force. Because the vegetable stem size changes, or when the centre gripping was carried in different positions, the crooked contained angle that warp that the flexible band produced was different, therefore the clamping-force of conveyer belt to the vegetable stem changes, again because stem leaf class vegetables's stem all is weak breakable, can cause the stem leaf brittle fracture when the clamping-force is too big, and the clamping-force undersize can make vegetables drop, therefore the clamping-force scope that every kind of vegetables is suitable is different and less. Therefore, the existing clamping and conveying mechanism is difficult to adapt to the working occasions with large changes of the sizes of the stems due to uneven clamping force, so that the damage rate is high, and meanwhile, the structure in the prior art needs to be adjusted when being used among different varieties of vegetables, so that the universality is poor.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's weak point, and provide a commonality is good, can not cause the equal contact stress centre gripping conveyor of damage to vegetables.
The utility model provides an equal contact stress centre gripping conveyor, including the conveying mechanism of left and right sides two sets of symmetrical arrangement, every group conveying mechanism is including a pair of tandem initiative gyro wheel and driven cylinder, encircle the conveyer belt outside main, driven cylinder, be provided with the gasbag body outside the conveyer belt, be provided with the air vent of mutual intercommunication on conveyer belt and the gasbag body, be provided with the support air duct in the cavity that conveyer belt and main, driven cylinder enclose, it still is used for inflating for the gasbag body to support the air duct when supporting the conveyer belt, be provided with the gas outlet of communicating the conveyer belt on the conveyer belt, the gasbag body on the air vent on supporting that clamping side of air duct orientation adjacent conveying mechanism, still be provided with the preceding compression roller and the back compression roller that compress tightly the gasbag body on the conveyer belt and self can rotate at conveying mechanism's both ends, support and air duct communicate with each other.
The utility model discloses a wait contact stress centre gripping conveyor, it communicates with each other with compressed air source to support the air duct, compressed gas gets into and supports the air duct, it makes the gasbag body swell sufficient to pass through the air vent on conveyer belt and the gasbag body by the gas outlet that supports on the air duct again, when two gasbag bodies of bilateral symmetry are sufficient to the mutual contact, its contact reaction force makes the conveyer belt hug closely on supporting the air duct, because the conveyer belt is smooth surface and has great area of contact with the contact surface that supports the air duct, thereby can form better sealed face and reduce gas leakage. When the flow of the input compressed gas and the flow of the leakage gas are kept flat, an air cushion with stable air pressure can be formed in the air bag body. Due to the soft characteristic of the air bag body, the clamping contact stress borne by the vegetable stem leaves clamped and conveyed by the air bags on the two sides is the air pressure of compressed air no matter the size of the vegetable stem leaves. Under the drive of the driving rollers on the two sides in the opposite direction and at the same rotating speed, the two groups of conveying belts which are bilaterally symmetrical run in the same speed and the same direction with the air bag body connected with the conveying belts, the vegetable sent from the inlet can be conveyed backwards by clamping the stem of the air bag body, when the air bag body and the conveying belts enter the non-clamping side, the air bag body is in a flat state because of the extrusion sealing effect of the front and the rear compression rollers with the two rotatable ends and the communication between the air vent and the atmosphere, and therefore the cavity of the air bag body is not compressed air any.
The specific mode that the conveyer belt outside set up the gasbag body does: the conveyer belt and the air bag body are fixedly connected into an integral structure.
The fixed connection of conveyer belt and gasbag body for adopt the cementing together with both.
The specific mode that the air bag body is arranged on the outer side of the conveying belt can also be as follows: the conveyer belt and the air bag body are connected together in a detachable mode.
The conveyer belt and the air bag body are connected in a detachable mode, and the conveyer belt or the air bag body can be flexibly and independently replaced according to needs.
The detachable connection mode of the conveyer belt and the air bag body is that the conveyer belt and the air bag body are connected by adopting modes of bonding buckles, hidden buckles and the like.
The conveyer belt and the air bag body are provided with vent holes or arranged at the joint of the conveyer belt and the air bag body or communicated through a connecting piece.
The supporting air duct is a rectangular tube.
The rectangular support air duct can ensure that the contact surface of the conveying belt is more attached during working, thereby forming a better sealing surface and reducing gas leakage.
The air outlet on the supporting air duct is a long groove-shaped air outlet.
The air outlet on the supporting air duct is arranged to be of a long-groove structure, so that the air on the supporting air duct can enter the air bag body more conveniently.
The air bag body is a flexible rubber air bag body.
The air bag body with the structure is not easy to damage vegetables.
To sum up, the utility model discloses compare prior art following advantage:
1. because the clamping contact stress of the clamping conveying mechanism and the stem is equal to the air pressure of compressed air, the clamping force is the product of the air pressure and the contact area. When the size of the stem is increased, the clamping force of the stem is correspondingly increased, so that the clamping force is stable in the conveying process and can be adjusted in a self-adaptive manner according to the size of the stem, and the damage can be effectively reduced.
2. When different varieties of vegetables are harvested, the clamping contact stress can be adjusted by adjusting the air pressure, so that the universality is improved.
3. The air sac body can have larger deformation size, so the air sac body can adapt to the size of a stem or the feeding amount in a larger range, and the universality can be improved.
4. The feeding opening has larger width, thereby being beneficial to aligning rows during harvesting and reducing the requirement on the precision of the rows.
5. Because the non-clamping side air bag body is in a flat state, the width size of the clamping conveying mechanism is reduced, the row spacing can be reduced during multi-row harvesting, and the vegetable variety with smaller row spacing can be harvested.
Drawings
FIG. 1 is a schematic view of a prior art gripper conveyor.
Fig. 2 is a schematic plan view of the clamping conveyor of the present invention.
Fig. 3 is a schematic view B-B of fig. 2.
Fig. 4 is a sectional view a-a of fig. 3.
Reference number 1 front press roller 2 air bag body 3 conveyer belt 4 driven roller 5 supports air duct 6 frame 7 supports air duct's air inlet interface 8 initiative roller 9 back press roller.
Detailed Description
The present invention will be described in more detail with reference to the following examples.
Example 1
An equal contact stress clamping and conveying device is shown in figures 2-4, wherein the middle parts of the contact parts of an air bag body 2 and a conveying belt 3 are connected into a whole through glue joint or other sealing and fastening modes, and a plurality of vent holes are arranged at the connection parts, so that the inner cavity of the air bag body 2 is communicated with the outside through the vent holes; the clamping belt that the gasbag body 2 and conveyer belt 3 are constituteed encircles in driven cylinder 4, support air duct 5, the 8 outsides of initiative cylinder, and both ends are pressed gasbag body 2 tightly on conveyer belt 3 by rotatable preceding compression roller 1 and back compression roller 9, separate into two chambeies with the inner space of gasbag body 2. The supporting air duct 5 is a rectangular tubular structure with two closed ends and a hollow interior, the bottom of the supporting air duct is connected with an air inlet connector 7, a long groove-shaped air outlet is arranged in the middle of the supporting air duct facing the clamping surface, and the height of the air outlet is consistent with that of the vent holes in the clamping belt. After compressed air lets in from air inlet interface 7 and supports air duct 5, through the cavity gas injection that the air pocket body 2 lies in between preceding compression roller 1 and back compression roller 9 and makes it swell to air pocket body through the vent again, when two air pocket body of bilateral symmetry are full of to the mutual contact, its contact reaction force makes conveyer belt 3 hug closely on supporting air duct 5, because conveyer belt 3 is smooth surface and has great area of contact with the contact surface that supports air duct 5, thereby can form better sealed face and reduce gas leakage. When the flow of the input compressed gas and the flow of the leakage gas are kept flat, an air cushion with stable air pressure can be formed in the air bag body. Because the air bag body 2 is made of soft rubber materials with extremely low rigidity, the clamping contact stress borne by the vegetable stems and leaves clamped and conveyed by the air bags on the two sides is the air pressure of compressed air no matter the size of the vegetable stems and leaves.
Under the reverse equal rotational speed drive of both sides initiative cylinder, bilateral symmetry's two sets of conveyer belts 3 and the gasbag body 2 constant speed syntropy operation on being connected it, can pass through the stem of gasbag body 2 centre gripping its stem backward transport of vegetables that the entrance sent into this moment, when the gasbag body 2 got into non-centre gripping side with conveyer belt 3, because the extrusion sealing effect of rotatable preceding compression roller 1 in both ends and back compression roller 9 to this section air vent and atmosphere UNICOM, consequently its cavity no longer has compressed air, gasbag body 2 was the flat state this moment.
Reference numeral 6 in fig. 3 denotes a frame.
The parts not described in the present embodiment are the same as those in the prior art.
Claims (7)
1. The utility model provides an equal contact stress centre gripping conveyor, is including the conveying mechanism of left and right sides two sets of symmetric arrangements, its characterized in that: each group of conveying mechanism comprises a pair of driving rollers and driven rollers which are arranged in a front-back mode, conveying belts surround the driving rollers and the driven rollers, air bag bodies are arranged on the outer sides of the conveying belts, air holes which are communicated with each other are formed in the conveying belts and the air bag bodies, supporting air guide pipes are arranged in cavities which are formed by the conveying belts and the driving rollers and the driven rollers in a surrounding mode, the supporting air guide pipes are used for inflating air bag bodies while supporting the conveying belts, air outlets which are used for communicating the conveying belts and the air holes in the air bag bodies are arranged on the clamping sides of the supporting air guide pipes facing the adjacent conveying mechanisms, front compression rollers and rear compression rollers which compress the air bag bodies on the conveying belts and can rotate are arranged at the two ends of the conveying mechanisms, and.
2. The iso-contact stress clamp delivery apparatus of claim 1, wherein: the specific mode that the conveyer belt outside set up the gasbag body does: the conveyer belt and the air bag body are fixedly connected into an integral structure.
3. The iso-contact stress clamp delivery apparatus of claim 1, wherein: the specific mode that the conveyer belt outside set up the gasbag body does: the conveyer belt and the air bag body are connected together in a detachable mode.
4. The equal contact stress clamping conveyor device according to claim 2 or 3, wherein: the conveyer belt and the air bag body are provided with vent holes or arranged at the joint of the conveyer belt and the air bag body or communicated through a connecting piece.
5. The iso-contact stress clamp delivery apparatus of claim 4, wherein: the supporting air duct is a rectangular tube.
6. The iso-contact stress clamp delivery apparatus of claim 5, wherein: the air outlet on the supporting air duct is a long groove-shaped air outlet.
7. The iso-contact stress clamp delivery apparatus of claim 6, wherein: the air bag body is a flexible rubber air bag body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021209453.2U CN212374413U (en) | 2020-06-27 | 2020-06-27 | Equal contact stress clamping and conveying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021209453.2U CN212374413U (en) | 2020-06-27 | 2020-06-27 | Equal contact stress clamping and conveying device |
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| Publication Number | Publication Date |
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| CN212374413U true CN212374413U (en) | 2021-01-19 |
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| CN202021209453.2U Active CN212374413U (en) | 2020-06-27 | 2020-06-27 | Equal contact stress clamping and conveying device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115105995A (en) * | 2022-05-25 | 2022-09-27 | 重庆医科大学附属永川医院 | Test tube shaking and mixing device for hematology department inspection |
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2020
- 2020-06-27 CN CN202021209453.2U patent/CN212374413U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115105995A (en) * | 2022-05-25 | 2022-09-27 | 重庆医科大学附属永川医院 | Test tube shaking and mixing device for hematology department inspection |
| CN115105995B (en) * | 2022-05-25 | 2023-08-22 | 重庆医科大学附属永川医院 | Test tube shakes and mixes device for clinical laboratory |
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