CN215640124U

CN215640124U - Destructive test device for gap bridge feeding and conveying transmission

Info

Publication number: CN215640124U
Application number: CN202122311004.XU
Authority: CN
Inventors: 杨志广; 张克岩; 张玉增
Original assignee: Weichai Lovol Heavy Industry Co Ltd
Current assignee: Weichai Lovol Intelligent Agricultural Technology Co Ltd
Priority date: 2021-09-24
Filing date: 2021-09-24
Publication date: 2022-01-25
Anticipated expiration: 2031-09-24

Abstract

The utility model relates to a destructive test device for gap bridge feeding conveying transmission, and belongs to the related technical field of agricultural machinery. The destructive test device comprises a motor, a gap bridge driving shaft, a gap bridge main body, a lower roll assembly and a pushing component, wherein the gap bridge driving shaft and the lower roll assembly are respectively installed on the gap bridge main body; the pushing component is arranged at a feeding inlet of the lower roller assembly and pushes the blockage to the lower roller assembly. Provide power through the motor, through propelling movement part propelling movement plug in to the lower roll assembly, the simulation limit operating mode can detect the contrast to the intensity etc. of conveying chain, rake board and gap bridge driving shaft, inspects the safety clutch effect, under the same moment of torsion effect, detects different product weak points, provides data support for production research.

Description

Destructive test device for gap bridge feeding and conveying transmission

Technical Field

The utility model relates to the related field of a gap bridge feeding conveying transmission destructive test, in particular to a destructive test device for gap bridge feeding conveying transmission.

Background

At present, mechanical products produced by agricultural machinery plants are directly used for field verification of crops, the blocking working condition cannot be reproduced before leaving the factory in time, and the reliability and the development efficiency of the products are influenced when problems are discovered relatively late. For example, when the product is used in areas with more gravels, such as Xinjiang, the situation that the gap bridge feeding of agricultural machinery products is blocked by hard materials, such as stones, often occurs, once the situation occurs, parts, such as a rake board, a chain, a safety clutch and the like, are easily damaged irreversibly, and the use of users is affected.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem of the prior art and provides a transmission destructive test device for gap bridge feeding and conveying.

The technical scheme for solving the technical problems is as follows: a destructive test device for gap bridge feeding conveying transmission comprises a motor, a gap bridge driving shaft, a gap bridge main body, a lower roll assembly and a pushing component, wherein the gap bridge driving shaft and the lower roll assembly are respectively installed on the gap bridge main body; the pushing component is arranged at the feeding port of the lower roller assembly and used for pushing the blocking objects into the lower roller assembly.

The utility model has the beneficial effects that: the destructive test device for gap bridge feeding and conveying transmission provided by the utility model has the advantages that the motor provides power for the gap bridge driving shaft and the lower roller device, and the pushing component pushes the blocking object to the lower roller assembly, so that the limit working condition is simulated, the strength and the like of the conveying chain, the rake plate and the gap bridge driving shaft can be detected and compared, the effect of the safety clutch is tested, the weak points of different products (the rake plate, the chain, the safety clutch and the like) can be detected under the same torque action, and the data support is provided for production research and the like.

On the basis of the technical scheme, the utility model can be further improved as follows.

Further, the pushing component comprises an air cylinder or an oil cylinder.

The beneficial effect of adopting the further scheme is that: the air cylinder or the oil cylinder is adopted for pushing, so that the quantity of the pushed plugs can be conveniently controlled.

Further, the inclined direction of the pushing component is the same as the transmission direction of the conveying chain.

The beneficial effect of adopting the further scheme is that: the feeding condition of the material in the actual working condition can be more intuitively simulated.

Further, a pushing table is installed at a feeding port of the lower roller assembly, and the pushing component is installed on the pushing table.

The beneficial effect of adopting the further scheme is that: the pushing table is utilized to provide effective support for the pushing component.

Further, the lower roll assembly comprises a gap bridge lower roll welding part and a rocker welding part, the upper end of the gap bridge lower roll welding part is connected to the gap bridge main body through an elastic floating component, and the two axial ends of the gap bridge lower roll welding part are respectively connected to the gap bridge main body through the rocker welding part in a vertically floating mode.

The beneficial effect of adopting the further scheme is that: the rocker welding can provide floating support for the gap bridge lower roller welding, and the elastic floating component can provide resilience acting force for the gap bridge lower roller floating.

Furthermore, a plurality of driving chain wheels are arranged on the bridge driving shaft, each driving chain wheel is respectively connected with the corresponding conveying chain in a transmission manner, and the lower roller is provided with a driving rib in friction fit with the corresponding conveying chain.

The beneficial effect of adopting the further scheme is that: the gap bridge driving shaft drives the conveying chain and the rake plate on the conveying chain to operate through the driving chain wheel, the conveying chain is in friction fit with the transmission ribs assembled on the lower roller, and the lower roller is driven to be assembled and operated by friction force.

Further, when the harrow plate on the conveying chain is positioned right below the lower roller assembly, the gap between the harrow plate and the bottom plate of the gap bridge main body is 28-33 mm.

The beneficial effect of adopting the further scheme is that: the gap between the harrow plate and the bottom plate under the lower roller assembly is maintained within a preset range by adjusting the compression amount of the spring, so that the actual working condition of the gap bridge can be well simulated.

Further, the transmission belt is a V-belt.

The plug is a hard structure block, and a strip-shaped object is connected to the hard structure block.

The beneficial effect of adopting the further scheme is that: the hard structure block is adopted, and the strip-shaped object is arranged on the hard structure block, so that the blockage such as stones and the like in actual operation can be well simulated.

Furthermore, the gap bridge driving shaft is also connected with a wireless torque sensor.

The beneficial effect of adopting the further scheme is that: the wireless torque sensor node is simple and convenient to use, and only the sensor node, a battery and a strain gauge are required to be fixed on a bridge driving shaft, the strain value of the bridge driving shaft is directly measured and wirelessly transmitted to a gateway or a routing node in real time, and the torque value is calculated by using a strain torque conversion formula in acquisition control software.

Drawings

FIG. 1 is a schematic front view of a destructive testing device for gap bridge feeding transmission according to the present invention;

FIG. 2 is a schematic side view of the destructive testing apparatus for gap bridge feeding transmission according to the present invention;

FIG. 3 is an enlarged view of portion A of FIG. 2;

FIG. 4 is a schematic structural diagram of the gap bridge driving shaft of the present invention;

FIG. 5 is a front view of the lower roll assembly of the present invention;

fig. 6 is a cross-sectional structural view of the lower roll assembly of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1. a motor; 2. a transmission belt;

31. a gap bridge driving shaft; 311. a drive sprocket; 312. a drive pulley; 32. a gap bridge main body; 33. welding the lower roller of the gap bridge; 34. welding the rocker; 35. a safety clutch; 36. a base plate; 37. a drive rib; 38. a conveyor chain; 39. raking a plate;

4. a plug; 41. a strip-shaped object; 5. a pushing table; 51. an oil cylinder; 6. an elastic floating member.

Detailed Description

The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the utility model.

As shown in fig. 1 to 6, the destructive testing apparatus for gap bridge feeding conveying transmission of the present embodiment includes a motor 1, a gap bridge driving shaft 31, a gap bridge main body 32, a lower roll assembly and a pushing component, where the gap bridge driving shaft 31 and the lower roll assembly are respectively installed on the gap bridge main body 32, the motor 1 is in transmission connection with the gap bridge driving shaft 31 through a transmission belt 2, the gap bridge driving shaft 31 is installed with a safety clutch 35, the gap bridge driving shaft 31 drives a conveying chain 38 to operate through a driving sprocket 311, and the conveying chain 38 drives the lower roll assembly to rotate at the same time; the pushing member is installed at a feeding port of the lower roll assembly and serves to push the plugs 4 into the lower roll assembly.

Specifically, the motor 1 is in transmission connection with a driving pulley 312 on the intermediate driving shaft 31 through a transmission belt 2, so as to drive the intermediate driving shaft 31 to operate. The motor 1 can be a variable frequency speed regulating motor.

As shown in fig. 1 and 2, the pushing member of the present embodiment includes an air cylinder or oil cylinder 51. The air cylinder or the oil cylinder is adopted for pushing, so that the quantity of the pushed plugs can be conveniently controlled.

As shown in fig. 1 and 2, the inclined direction of the pushing component of the embodiment is the same as the transmission direction of the conveying chain 38, so that the feeding condition of the material in the real working condition can be simulated more intuitively.

As shown in fig. 1 and 2, the feeding port of the lower roll assembly of the present embodiment is provided with a pushing table 5, and the pushing member is mounted on the pushing table 5, so that the pushing table is used for providing effective support for the pushing member.

As shown in fig. 1 and fig. 4 to 6, the lower roller assembly of this embodiment includes a gap bridge lower roller seam 33 and a rocker seam 34, the upper end of the gap bridge lower roller seam 33 is connected to the gap bridge main body 32 through an elastic floating component 6, and two axial ends of the gap bridge lower roller seam 33 are respectively connected to the gap bridge main body 32 through the rocker seam 34 in a vertically floating manner. The rocker welding can provide floating support for the gap bridge lower roller welding, and the elastic floating component can provide resilience acting force for the gap bridge lower roller welding floating. Specifically, two ends of a roller shaft of the lower roller gap welding 33 are respectively fixed on the corresponding rocker welding 34, and the lower roller gap of the lower roller gap welding 33 is rotatably connected to the roller shaft through a bearing.

In a preferred embodiment of this embodiment, as shown in fig. 2, the elastic floating component 6 includes a spring and a guide rod, one end of the guide rod is connected to the lower roller in an assembling manner, the other end of the guide rod is movably connected to the gap bridge main body 32, and the spring is sleeved on the guide rod and is respectively abutted to the lower roller assembly and the gap bridge main body 32. The spring may provide a spring back force for the float up and down of the roller bridge seam 33.

As shown in fig. 4, the bridge driving shaft 31 of this embodiment is provided with a plurality of driving sprockets 311, each driving sprocket 311 is in transmission connection with a corresponding conveying chain 38, and the lower roller is provided with a driving rib 37 in friction fit with the corresponding conveying chain 38. The gap bridge driving shaft drives the conveying chain and the rake plate on the conveying chain to operate through the driving chain wheel, the conveying chain is in friction fit with the transmission ribs assembled on the lower roller, and the lower roller is driven to be assembled and operated by friction force. For example, three driving sprockets 311 can be disposed on the bridge driving shaft 31, and each driving sprocket 311 is engaged with one of the conveying chains 38 and drives the corresponding conveying chain 38 to run.

As shown in fig. 2 and 3, when the harrow plate of the conveying chain of the present embodiment is located right below the lower roller assembly, the gap h between the harrow plate 39 and the bottom plate 36 of the bridge main body 32 is 28-33 mm. The gap between the harrow plate and the bottom plate under the lower roller assembly is maintained within a preset range by adjusting the compression amount of the elastic floating part, so that the actual working condition of the gap bridge can be well simulated.

As shown in fig. 1, the transmission belt 2 of the present embodiment is a V-belt.

As shown in fig. 1 and 2, the testing apparatus of the present embodiment further includes a plug 4, wherein the plug 4 is a hard structural block, and a strip 41 is connected to the hard structural block. The hard structure block is adopted, and the strip-shaped object is arranged on the hard structure block, so that the blockage such as stones and the like in actual operation can be well simulated.

The plug 4 can be a steel block, the steel block can be a cube, and a steel bar can be welded on the steel block to simulate the plug. The blocking object can also be irregular hard structural parts such as stone.

The bridge driving shaft 31 of the present embodiment is further connected with a wireless torque sensor. The wireless torque sensor node is simple and convenient to use, and only the sensor node, a battery and a strain gauge are required to be fixed on a bridge driving shaft, the strain value of the bridge driving shaft is directly measured and wirelessly transmitted to a gateway or a routing node in real time, and the torque value is calculated by using a strain torque conversion formula in acquisition control software.

The destructive testing apparatus for the gap bridge feeding conveying transmission of the present embodiment operates by performing an experiment at a set torque (for example, a set torque of 800N · m) and a rotation speed. Firstly, the gap bridge driving shaft 31 is driven by the motor 1, the gap bridge driving shaft 31 drives the harrow plates 39 on the conveying chain 38 to run, and the gap bridge main body 32 is enabled to reach the required working rotating speed (305rpm, the rotating speeds of different types of gap bridges are slightly different) by combining feeding transmission, so that the gap bridge driving is ready to be separated when needed. Then, the plug 4 (which is a 100mm × 100mm × 100mm steel block, on the upper surface of which a round bar of 25mm in diameter is welded, which will make point contact with the drag plate 39 on the conveyor chain, is put in the middle of the conveyor chain 39 and makes contact with the drag plate, or the steel block is inserted at any position in the lateral direction of the drag plate according to the purpose of the test) is pushed by the oil cylinder 51. And finally, the safety clutch is separated from feeding transmission, the state of the harrow plate is checked, the damage (harrow plate deformation, chain failure, safety clutch slippage and the like) suffered by each part is recorded, and the weak points of different products are detected under the same torque action. Where the torque decay between two tests of the safety clutch set point should not be greater than 1% during the experiment, if greater than this value, the test is invalid and will need to be revalidated.

The destructive test device for transmission is carried in bridge feed of this embodiment, provide power for bridge driving shaft and lower roll device through the motor, and through propelling movement blockage thing in the propelling movement part is to the lower roll assembly, simulate limit operating mode, can detect the contrast to the intensity etc. of conveying chain, harrow board and bridge driving shaft, the effect to safety clutch is examined, can be under the same moment of torsion effect, detect the weak point of different products (conveying chain, harrow board, chain, safety clutch etc.), provide data support for production research etc..

In the description of the present invention, it is to be understood that the terms "lateral," "upper," "lower," "bottom," "inner," "axial," and the like are used in the orientations and positional relationships indicated in the drawings, which are used for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.

In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integral; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims

1. A destructive test device for gap bridge feeding conveying transmission is characterized by comprising a motor, a gap bridge driving shaft, a gap bridge main body, a lower roll assembly and a pushing component, wherein the gap bridge driving shaft and the lower roll assembly are respectively installed on the gap bridge main body; the pushing component is arranged at the feeding port of the lower roller assembly and used for pushing the blocking objects into the lower roller assembly.

2. The destructive testing device for gap bridge feeding conveying transmission according to claim 1, wherein the pushing component comprises an air cylinder or an oil cylinder.

3. The destructive testing device for gap bridge feeding conveying transmission according to claim 1, wherein the inclined direction of the pushing component is the same as the transmission direction of the conveying chain.

4. The destructive testing device for the gap bridge feeding conveying transmission as claimed in claim 1, wherein a pushing table is installed at the feeding port where the lower roller is assembled, and the pushing component is installed on the pushing table.

5. The destructive testing device for the gap bridge feeding conveying transmission as claimed in claim 1, wherein said lower roller assembly comprises a gap bridge lower roller welding part and a rocker welding part, the upper end of said gap bridge lower roller welding part is connected to the gap bridge main body through an elastic floating component, and the two axial ends of said gap bridge lower roller welding part are respectively connected to said gap bridge main body through a rocker welding part which can float up and down.

6. The destructive testing device for the gap bridge feeding conveying transmission as claimed in claim 1, wherein the gap bridge driving shaft is provided with a plurality of driving chain wheels, each driving chain wheel is respectively connected with the corresponding conveying chain, and the lower roller is provided with a driving rib which is in friction fit with the corresponding conveying chain.

7. The destructive testing device for the bridge feeding conveying transmission as claimed in claim 1, wherein when the harrow plate on the conveying chain is located right below the lower roller assembly, the clearance between the harrow plate and the bottom plate of the bridge main body is 28-33 mm.

8. A destructive testing device for a gap bridge feed conveyor transmission according to claim 1, characterised in that said transmission belt is a V-belt.

9. The destructive testing device for the gap bridge feeding conveying transmission according to claim 1, further comprising a plug, wherein the plug is a hard structural block, and a strip is connected to the hard structural block.

10. The destructive testing device for gap bridge feeding conveying transmission according to claim 1, wherein the gap bridge driving shaft is further connected with a wireless torque sensor.