A spray machine air cylinder test device

Abstract

The present invention discloses a sprayer wind tube test device, comprising a conical wind tube, the conical wind tube comprising: a conical cylinder body, a rear guide vane, and a guide column, the guide column is located in the conical cylinder body, one end of the conical cylinder body is the conical cylinder air inlet end, the other end of the conical cylinder body is the conical cylinder air outlet end, the conical cylinder body is provided with a connecting hole running therethrough, the guide column comprises a guide cone cylinder, the guide cone cylinder is provided with a mounting hole, the mounting hole comprises a waist-shaped groove, the length direction of the waist-shaped groove is consistent with the circumference of the guide cone cylinder, one side of the rear guide vane is fixed to the connecting hole by a first threaded connector, and the other side of the rear guide vane is fixed to the mounting hole by a second threaded connector. The sprayer wind tube test device aims to solve the technical problems in the prior art that the scheme of obtaining test data by manufacturing a small number of prototypes has little test data and high cost.

Description

Technical Field

[0001] The invention belongs to the technical field of air-conveying spray test devices, and in particular relates to a spray machine wind tube test device. Background Art

[0002] Air-blast sprayers are now widely used in dust control in the construction industry, coal industry, steel industry, mining, municipal sanitation, etc. As the core component of the air-blast sprayer, the wind tube is mainly used to generate smooth axial airflow. The wind tube of an air-blast sprayer is usually composed of an axial flow fan and a conical wind tube, and there are also axial flow fans and conical wind tubes that are made into one. The air outlet end of the conical wind tube is smaller than the air inlet end. The axial flow fan generates a rotating axial airflow, which becomes a smooth airflow after being guided by the conical wind tube. The flow rate and air pressure increase accordingly. The airflow sends the tiny droplets at the front end of the wind tube to a certain distance to achieve dust control within a certain range.

[0003] The droplet transmission of an air-blast sprayer mainly goes through the following three processes: (1) The high-speed airflow near the air outlet breaks up the droplets, making the droplet size smaller. (2) Under the action of medium-speed airflow, the collision between droplets causes the droplets to aggregate and increase in size. (3) The low-speed airflow causes the droplets to diffuse and evaporate, making the droplet size smaller. The speed and smoothness of the airflow have a significant impact on the droplet transmission, that is, it affects the expansion and sedimentation of the droplets in the wind field, and thus affects the range and dust reduction effect of the sprayer. Therefore, under the condition of a certain axial flow fan, manufacturing a conical wind tube with excellent flow guidance performance is the key to manufacturing a high-performance wind tube. A conical wind tube with excellent flow guidance performance should meet the characteristics of low wind resistance, good flow guidance, and coordination between the taper and the fan.

[0004] At present, the cone wind tube is generally composed of a cone, front guide vanes, rear guide vanes, guide columns, etc. The angle of the front guide vanes, the number of front and rear guide vanes, and the structural form of the front and rear guide vanes have the greatest impact on the guide performance of the cone wind tube.

[0005] In the prior art, when designing the air cylinder of an air-conveying sprayer, the determination of the parameters of the above-mentioned influencing factors mainly relies on the test data of a small number of prototypes.

[0006] The disadvantage of this solution is that the wind tube of the air-conveying sprayer is a steel part. Once manufactured, it is difficult to adjust and change the structure and performance. In addition, there are many factors that affect the cone wind tube, and each factor interacts with each other in a highly nonlinear manner. If only a small number of prototypes are manufactured for testing during the design and development stage, ideal test data cannot be obtained. If all prototypes are manufactured for testing, the cost is very high and the time cycle is very long. Summary of the invention

[0007] 1. Technical issues to be resolved

[0008] Based on this, the present invention proposes a sprayer wind tube test device, which aims to solve the technical problems in the prior art of obtaining test data by manufacturing a small number of prototypes, such as small test data and high cost.

[0009] (II) Technical solution

[0010] To solve the above technical problems, the present invention proposes a sprayer wind cylinder test device, a sprayer wind cylinder test device, including a conical wind cylinder, the conical wind cylinder including: a conical cylinder body, a rear guide vane, and a guide column, the guide column is located in the conical cylinder body, one end of the conical cylinder body is the conical cylinder air inlet end, the other end of the conical cylinder body is the conical cylinder air outlet end, the conical cylinder body is provided with a connecting hole running through it, the guide column includes a guide cone cylinder, the guide cone cylinder is provided with a mounting hole, the mounting hole includes a waist-shaped groove, the length direction of the waist-shaped groove is consistent with the circumference of the guide cone cylinder, one side of the rear guide vane is fixed to the connecting hole by a first threaded connector, and the other side of the rear guide vane is fixed to the mounting hole by a second threaded connector.

[0011] Preferably, the rear guide vane includes a rear guide vane body and a connecting ear plate fixed to one side of the rear guide vane body, the second threaded connection includes a locking nut and an adjusting bolt fixed to the other side of the rear guide vane body, the connecting ear plate is provided with a waist-shaped hole passing therethrough, and the first threaded connection is a locking bolt; the locking bolt passes through the waist-shaped hole and the connecting hole to fix the connecting ear plate to the cone body; the adjusting bolt is inserted into the mounting hole and fixed to the guide cone through the locking nut.

[0012] Preferably, the mounting hole also includes a circular hole connected to the waist-shaped groove.

[0013] Preferably, the number of the mounting holes is 8n, where n is a natural number of 2-5, and the 8n mounting holes are equally divided into n groups spaced apart along the axial direction of the guide cone, and the mounting holes in the same group are evenly distributed along the circumference of the guide cone.

[0014] Preferably, the number of the axial holes is 18m or 21m; wherein: when the number of the axial holes is 21m, 8 of the axial holes form a group and are evenly distributed along the circumference of the guide cone; another 7 of the axial holes form a group and are evenly distributed along the circumference of the guide cone; the remaining 6 of the axial holes form a group and are evenly distributed along the circumference of the guide cone; the number of the rotating shaft seats is the same as the axial holes, and the positions of the rotating shaft seats and the axial holes are arranged in a one-to-one correspondence.

[0015] Preferably, each of the rear guide vanes is provided with a rotatable front guide vane on one side close to the air inlet end of the cone cylinder, and the rotatable front guide vane comprises a front guide vane unit, and the front guide vane unit comprises a front guide vane body and a shaft sleeve welded on one side of the front guide vane body, the shaft sleeve has a threaded hole, and a fixing bolt is provided at the threaded hole, and a rotating shaft is provided in the shaft sleeve, and a small section plane is provided on the rotating shaft, and a shaft shoulder is provided at one end of the rotating shaft, and a raised square head is provided on the shaft shoulder; the cone body comprises a cone body and a rotating shaft seat arranged on the outer side of the cone body, an axial hole is provided on the guide cone, one end of the rotating shaft extends into the axial hole, and the other end of the rotating shaft passes through the rotating shaft seat, the shaft shoulder abuts against one end of the rotating shaft seat away from the cone body, the small section plane is arranged opposite to the threaded hole, and the front guide vane body is fixed to the rotating shaft by the fixing bolt, and the square head extends out of the rotating shaft seat; a pressing plate is provided on the shaft shoulder, and the shaft shoulder and the pressing plate are fixedly connected by a tightening bolt.

[0016] Preferably, the number of the shaft holes is 21m, of which 8 shaft holes form a group and are evenly distributed along the circumference of the guide cone; another 7 shaft holes form a group and are evenly distributed along the circumference of the guide cone; the remaining 6 shaft holes form a group and are evenly distributed along the circumference of the guide cone; the number of the shaft seats is the same as the shaft holes, and the shaft seats are arranged in a one-to-one correspondence with the positions of the shaft holes. Preferably, the sprayer wind tube test device also includes a fan, one end of the fan is the fan outlet end, the other end of the fan is the fan inlet end, the cone wind tube is located at the fan outlet end, and the end of the cone body close to the fan outlet end is the cone inlet end; the guide cone is in the shape of a truncated cone as a whole, and the large end of the guide cone is close to the cone inlet end.

[0017] Preferably, the sprayer wind tube test device further comprises a collector, and the collector is located at the air inlet end of the fan.

[0018] (III) Beneficial effects

[0019] Compared with the prior art, the beneficial effects of the sprayer wind tube test device of the present invention mainly include:

[0020] Compared with the prior art, the present invention provides a sprayer wind tube test device that can carry out multi-factor coupling tests. The present invention designs a structure that can be adjusted or conveniently replaced and installed. Only one set of main structure needs to be manufactured. By adjusting the angle of the rotatable front guide vane, replacing and installing rear guide vanes of different structural forms, or increasing or decreasing the number of installed guide vanes, prototype test conditions of the cone wind tube under different combinations can be established to obtain test data or verify simulation results, thereby obtaining ideal model machine data. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The features and advantages of the present invention will be more clearly understood by referring to the accompanying drawings, which are schematic and should not be construed as limiting the present invention in any way. In the accompanying drawings:

[0022] Figure 1 The overall structure front view of the sprayer wind tube test device in the embodiment of the present invention;

[0023] Figure 2 It is a schematic structural diagram of a cone air cylinder in a sprayer air cylinder test device in an embodiment of the present invention;

[0024] Figure 3 It is a schematic structural diagram of a guide column in a sprayer wind tube test device in an embodiment of the present invention;

[0025] Figure 4 It is a schematic structural diagram of the rear guide vane in the sprayer wind tube test device in the embodiment of the present invention;

[0026] Figure 5 It is a schematic structural diagram of a rotatable front guide vane in a sprayer wind tube test device in an embodiment of the present invention;

[0027] Figure 6 It is a schematic structural diagram of a rotating shaft in a sprayer wind tube test device in an embodiment of the present invention;

[0028] Figure 7 It is a schematic structural diagram of a rotatable front guide vane in a sprayer wind tube test device in an embodiment of the present invention being assembled on a conical cylinder body;

[0029] Figure 8 It is a stereoscopic diagram of the overall structure of the sprayer wind tube test device in the embodiment of the present invention;

[0030] Fig. 9 It is a schematic structural diagram of the common connection holes in the sprayer wind tube test device in the embodiment of the present invention.

[0031] Description of reference numerals:

[0032] 1. Cone wind tube, 2. Fan, 3. Collector,

[0033] 11. Cone body, 12. Rear guide vane, 13. Rotatable front guide vane, 14. Guide column,

[0034] 111. Cone body, 112. Rotating shaft seat,

[0035] 121. Rear guide vane body, 122. Connecting ear plate, 123. Adjusting bolt, 124. Locking nut, 125. Locking bolt,

[0036] 131. Front guide vane unit, 132. Rotating shaft, 133. Pressure plate, 134. Clamping bolt, 135. Fixing bolt,

[0037] 141. guide cone, 142. round hole, 143. waist groove, 144. shaft hole,

[0038] 1111.Connection hole,

[0039] 1311. Leading blade body, 1312. Bushing,

[0040] 1321. Small flat surface, 1322. Shoulder, 1323. Square head,

[0041] 13121.Threaded holes. DETAILED DESCRIPTION

[0042] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific implementation disclosed below.

[0043] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements, or it can be a "transmission connection", that is, a power connection through various appropriate methods such as belt drive, gear drive or sprocket drive. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] The following is combined with Figure 1-8 The invention of a sprayer air duct testing device is further described.

[0045] Please focus on Figure 1-3A sprayer wind tube test device includes a conical wind tube 1, which includes: a conical cylinder body 11, a rear guide vane 12, and a guide column 14. The guide column 14 is located in the conical cylinder body 11, one end of the conical cylinder body 11 is the conical cylinder air inlet end, and the other end of the conical cylinder body 11 is the conical cylinder air outlet end. The conical cylinder body 11 is provided with a connecting hole 1111 running through it, and the guide column 14 includes a guide cone 141, and the guide cone 141 is provided with a mounting hole, and the mounting hole includes a waist groove 143, and the length direction of the waist groove 143 is consistent with the circumference of the guide cone 141. One side of the rear guide vane 12 is fixed to the connecting hole 1111 by a first threaded connector, and the other side of the rear guide vane 12 is fixed to the mounting hole by a second threaded connector. More specifically, the guide cone 141 is coaxially arranged with the conical cylinder body 11.

[0046] In the present embodiment, the guide surface of the rear guide vane 12 is consistent with the axial direction of the conical wind tube 1, and the length direction of the waist-shaped groove 143 is consistent with the axial direction of the conical cylinder body 11. Therefore, the position of one side of the rear guide vane 12 can be reasonably adjusted according to usage requirements. By reasonably adjusting the number and positions of the connecting holes 1111 and the mounting holes, and correspondingly selecting the required number of rear guide vanes 12, a variety of rear guide vane 12 structures can be formed in the conical cylinder body 11, and a variety of rear guide vane 12 test models can be constructed to obtain more research and development data, which can save manufacturing costs in the research and development stage.

[0047] Please focus on Figure 4 According to a preferred embodiment of the present invention, the rear guide vane 12 includes a rear guide vane body 121 and a connecting ear plate 122 fixed to one side of the rear guide vane body 121, the second threaded connector includes a locking nut 124 and an adjusting bolt 123 fixed to the other side of the rear guide vane body 121, the connecting ear plate 122 is provided with a waist-shaped hole passing therethrough, and the first threaded connector is a locking bolt 125; the locking bolt 125 passes through the waist-shaped hole and the connecting hole 1111 to fix the connecting ear plate 122 to the cone body 11; the adjusting bolt 123 is inserted into the mounting hole and fixed to the guide cone 141 through the locking nut 124. More specifically, the adjusting bolt 123 is welded to the rear guide vane body 121, and the connecting ear plate 122 is welded to the rear guide vane body 121. When assembling the rear guide vane 12, the adjusting bolt 123 on the rear guide vane 12 is inserted into the waist-shaped groove 143 of the guide cone 141, and the position of the adjusting bolt 123 in the waist-shaped groove 143 is adjusted. After the rear guide vane 12 is adjusted to the required position, the locking nut 124 is tightened, and the locking bolt 125 is tightened to complete the assembly. The waist-shaped hole on the connecting ear plate 122 is conducive to adjusting the position of the locking bolt 125.

[0048] Please focus on Figure 3According to a preferred embodiment of the present invention, the mounting hole further comprises a circular hole 142 connected to the waist-shaped groove 143. In this embodiment, the circular hole 142 facilitates the smooth insertion of the adjusting bolt 123. When assembling the rear guide vane 12, the adjusting bolt 123 on the rear guide vane 12 can be first inserted into the circular hole 142 of the guide cone 141, and then the adjusting bolt 123 can be slid into the waist-shaped groove 143.

[0049] According to a preferred embodiment of the present invention, the number of mounting holes is 8n, where n is a natural number of 2-5, and the 8n mounting holes are equally divided into n groups arranged at axial intervals along the guide cone 141, and the mounting holes in the same group are evenly distributed along the circumference of the guide cone 141.

[0050] Since the number of rear guide vanes 12 in a common conical wind tube 1 is 6, 7 or 8, by adopting the above structure, no matter the number of rear guide vanes 12 is 6, 7 or 8, when it is necessary to evenly distribute these numbers of rear guide vanes 12 on the guide cone 141, since the waist-shaped groove 143 has a large adjustment range, adjusting the position of the adjusting bolt 123 in the waist-shaped groove 143 can meet the angle requirement when 6, 7 or 8 rear guide vanes 12 are evenly distributed.

[0051] Please focus on Figure 8 According to a preferred embodiment of the present invention, the number of connection holes 1111 is 21m, where m is a natural number of 2-10, wherein 8m connection holes 1111 are equally divided into m groups spaced apart along the axial direction of the cone body 11, and the mounting holes in the same group are evenly distributed along the circumference of the guide cone 141; 7m connection holes 1111 are equally divided into m groups spaced apart along the axial direction of the cone body 11, and the mounting holes in the same group are evenly distributed along the circumference of the guide cone 141; 6m connection holes 1111 are equally divided into m groups spaced apart along the axial direction of the cone body 11, and the mounting holes in the same group are evenly distributed along the circumference of the guide cone 141. In this embodiment, by setting the connection holes 1111 of the above structure, when it is necessary to adjust the number of rear guide vanes 12 in the sprayer wind tube test device, they can be assembled in the cone wind tube 1 in accordance with the schemes of 6, 7, and 8 respectively.

[0052] The number of connecting holes 1111 is 21m, where m is a natural number of 2-10, wherein 8m connecting holes 1111 are equally divided into m groups spaced apart along the axial direction of the cone body 11, and the mounting holes in the same group are evenly distributed along the circumference of the guide cone 141; 7m connecting holes 1111 are equally divided into m groups spaced apart along the axial direction of the cone body 11, and the mounting holes in the same group are evenly distributed along the circumference of the guide cone 141; 6m connecting holes 1111 are equally divided into m groups spaced apart along the axial direction of the cone body 11, and the mounting holes in the same group are evenly distributed along the circumference of the guide cone 141. In this embodiment, by setting the connecting holes 1111 of the above structure, when it is necessary to adjust the number of rear guide vanes 12 in the sprayer wind tube test device, they can be assembled in the cone wind tube 1 in accordance with the schemes of 6, 7, and 8 respectively.

[0053] It should be noted that if Fig. 9 As shown, when the three groups of holes share a row of holes, the number of connecting holes 1111 can be reduced by 3m. The total number of connecting holes 1111 is 18m, and the structure can also be used to achieve the uniform installation of 6, 7 and 8 rear guide vanes 12.

[0054] Please focus on Figure 5-7 According to a preferred embodiment of the present invention, a rotatable front guide vane 13 is provided on one side of each rear guide vane 12 close to the air inlet end of the cone, and the rotatable front guide vane 13 includes a front guide vane unit 131, and the front guide vane unit 131 includes a front guide vane body 1311 and a sleeve 1312 welded to one side of the front guide vane body 1311, and a threaded hole 13121 is provided on the sleeve 1312, and a fixing bolt 135 is provided at the threaded hole 13121, and a rotating shaft 132 is provided in the sleeve 1312, and a small flat surface 13321 is provided on the rotating shaft 132, and a shoulder 1322 is provided at one end of the rotating shaft 132, and a raised square head 1323 is provided on the shoulder 1322; the cone body 11 includes The guide cone 141 includes a cone body 111 and a shaft seat 112 arranged on the outside of the cone body 111, an axis hole 144 is arranged on the guide cone 141, one end of the shaft 132 extends into the axis hole 144, and the other end of the shaft 132 passes through the shaft seat 112, the shaft shoulder 1322 abuts against the end of the shaft seat 112 away from the cone body 111, the small section plane 13321 is arranged opposite to the threaded hole 13121, the front guide vane body 1311 is fixed to the shaft 132 by the fixing bolt 135, and the square head 1323 extends out of the shaft seat 112; a pressure plate 133 is arranged on the shaft shoulder 1322, and the shaft shoulder 1322 and the pressure plate 133 are fixedly connected by a clamping bolt 134.

[0055] It should be noted that, in this embodiment, the front guide vane body 1311 is fixed to the rotating shaft 132 by the fixing bolt 135, that is, a structure in which the end surface of the fixing bolt 135 cooperates with the small section plane 13321 of the rotating shaft 132 to limit the position is adopted. In addition to this structure, other structures can be used as a replacement, for example, the fixing method between the rotating shaft 132 and the front guide vane body 1311 can also adopt a limiting method such as a pin connection, a key connection, etc.

[0056] During installation, the rotating shaft 132 extends into the rotating shaft seat 112 and then passes through the shaft sleeve 1312 of the rotatable front guide vane 13, and continues to extend into the shaft hole 144 of the guide cone 141 until the shaft shoulder 1322 just matches the rotating shaft seat 112. At this time, the threaded hole 13121 on the shaft sleeve 1312 of the rotatable front guide vane 13 just faces the small section plane 13321 of the rotating shaft 132. The rotatable front guide vane 13 and the rotating shaft 132 are fixed together by tightening the fixing bolts 135, that is, when the wrench rotates the square head 1323 of the rotating shaft 132, the rotatable front guide vane 13 can be driven to rotate. After adjusting the angle of the rotatable front guide vane 13, the clamping bolt 134 presses the shaft shoulder 1322 through the pressure plate 133, so that the shaft shoulder 1322 is tightly attached to the shaft seat 112. At this time, the shaft 132 cannot rotate, that is, in this state, the angle of the rotatable front guide vane 13 relative to the rear guide vane 12 is the adjusted angle.

[0057] The guide surface of the rear guide vane 12 is consistent with the axial direction of the conical wind tube 1, and the rotatable front guide vane 13 is at a certain angle to the guide surface of the rear guide vane 12. After the rotating airflow generated by the fan 2 enters the conical wind tube 1, it is guided by the rotatable front guide vane 13 for the first time, and then changes direction, and flows along the rotatable front guide vane 13 to the rear guide vane 12. The guide surface of the rear guide vane 12 further guides the airflow, and finally makes the airflow output from the outlet end of the conical wind tube 1 an axially smooth airflow.

[0058] According to a preferred embodiment of the present invention, the number of shaft holes 144 is 21, of which 8 shaft holes 144 form a group and are evenly distributed along the circumference of the guide cone 141; another 7 shaft holes 144 form a group and are evenly distributed along the circumference of the guide cone 141; the remaining 6 shaft holes 144 form a group and are evenly distributed along the circumference of the guide cone 141; the number of rotating shaft seats 112 is the same as the shaft holes 144, and the positions of the rotating shaft seats 112 and the shaft holes 144 are set in a one-to-one correspondence. The position of the shaft hole 144 needs to correspond to the position of the rear guide vane 12 to ensure the splicing of the front guide vane unit 131 and the rear guide vane body 121. The rotating shaft seat 112 is set corresponding to the shaft hole 144, which is convenient for the installation of the rotating shaft 132. Since the number of rear guide vanes 12 in the common cone wind tube 1 is 6, 7, or 8, the number of rotatable front guide vanes 13 corresponds to the rear guide vanes 12. With the above structure, no matter the number of the rotatable front guide vanes 13 is 6, 7 or 8, when it is necessary to evenly install these number of rotatable front guide vanes 13 on the guide cone 141, different groups of shaft holes 144 can be selected accordingly, which can meet the installation position requirements when 6, 7 or 8 rotatable front guide vanes 13 are evenly distributed.

[0059] In the above embodiment, the sprayer wind tube test device further includes a fan 2, one end of the fan 2 is the fan outlet, the other end of the fan 2 is the fan inlet, the conical wind tube 1 is located at the fan outlet, and the end of the conical cylinder body 11 close to the fan outlet is the conical cylinder inlet; the guide cone 141 is in the shape of a truncated cone as a whole, and the large end of the guide cone 141 is close to the cone inlet. The sprayer wind tube test device also includes a collector 3, which is located at the fan inlet.

[0060] In the wind tube test device for a sprayer of the present invention, the angle adjustment of the rotatable front guide vane 13 can realize stepless adjustment, and the test range is wider and more accurate.

[0061] When the sprayer wind tube test device needs to adjust the number of guide vanes (rear guide vanes 12 and / or rotatable front guide vanes 13), they can be assembled in the conical wind tube 1 according to 6, 7, or 8 schemes respectively; when the sprayer wind tube test device needs to adjust the guide vane form, the rotatable front guide vane 13 and the rear guide vane 12 can be replaced and installed, such as long rear guide vanes, serrated rear guide vanes, flat rotatable front guide vanes, etc.; when the sprayer wind tube test device needs to adjust the angle of the rotatable front guide vane 13, the rotating shaft 132 can be screwed to adjust the angle of the rotatable front guide vane 13.

[0062] The test device can realize different combinations of three variables, namely, the angle of the rotatable front guide vane 13, the number of the front and rear guide vanes 12, and the structural form of the front and rear guide vanes 12 in the same conical wind tube 1. The variables are easy to adjust and the operability is strong. The data is obtained through the test to find the optimal solution. It can save a lot of manufacturing costs in the research and development stage, improve the test efficiency, and has good economic value and practical value.

[0063] Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A sprayer wind tube test device, characterized in that: The conical wind cylinder comprises: a conical cylinder body, a rear guide vane, and a guide column, wherein the guide column is located in the conical cylinder body, one end of the conical cylinder body is an air inlet end of the conical cylinder, and the other end of the conical cylinder body is an air outlet end of the conical cylinder, and a connecting hole running through the conical cylinder body is provided on the conical cylinder body, and the guide column comprises a guide cone cylinder, and a mounting hole is provided on the guide cone cylinder, and the mounting hole comprises a waist-shaped groove, and the length direction of the waist-shaped groove is consistent with the circumference of the guide cone cylinder, and one side of the rear guide vane is fixed to the connecting hole by a first threaded connector, and the other side of the rear guide vane is fixed to the mounting hole by a second threaded connector; The rear guide vane comprises a rear guide vane body and a connecting ear plate fixed to one side of the rear guide vane body, and the connecting ear plate is welded to the rear guide vane body.

2. The sprayer wind tube test device according to claim 1, characterized in that: The second threaded connection member includes a locking nut and an adjusting bolt fixed to the other side of the rear guide vane body, the connecting ear plate is provided with a waist-shaped hole passing through it, and the first threaded connection member is a locking bolt; the locking bolt passes through the waist-shaped hole and the connecting hole to fix the connecting ear plate to the cone body; the adjusting bolt is inserted into the mounting hole and fixed to the guide cone through the locking nut.

3. The sprayer wind tube test device according to claim 2, characterized in that: The mounting hole also includes a circular hole connected to the waist-shaped groove.

4. The sprayer wind tube test device according to claim 3, characterized in that: The number of the mounting holes is 8n, where n is a natural number of 2-5. The 8n mounting holes are equally divided into n groups spaced apart along the axial direction of the guide cone, and the mounting holes in the same group are evenly distributed along the circumference of the guide cone.

5. The sprayer air cylinder test device according to claim 4, characterized in that: The number of the connecting holes is 21m, where m is a natural number of 2-10, wherein 8m connecting holes are equally divided into m groups spaced apart along the axial direction of the cone body, and the mounting holes in the same group are evenly distributed along the circumference of the guide cone; 7m connecting holes are equally divided into m groups spaced apart along the axial direction of the cone body, and the mounting holes in the same group are evenly distributed along the circumference of the guide cone; 6m connecting holes are equally divided into m groups spaced apart along the axial direction of the cone body, and the mounting holes in the same group are evenly distributed along the circumference of the guide cone.

6. The sprayer wind tube test device according to claim 5, characterized in that: The cam is provided with a plurality of camshafts, each of which is provided with a plurality of camshafts, each of which is provided with a plurality of camshafts, each of which is provided with a plurality of camshafts, each of which is provided with a plurality of camshafts.

7. The sprayer wind tube test device according to claim 6, characterized in that: The number of the axial holes is 18m or 21m; wherein: when the number of the axial holes is 21m, 8 of the axial holes form a group and are evenly distributed along the circumference of the guide cone; another 7 of the axial holes form a group and are evenly distributed along the circumference of the guide cone; the remaining 6 of the axial holes form a group and are evenly distributed along the circumference of the guide cone; the number of the rotating shaft seats is the same as the axial holes, and the positions of the rotating shaft seats and the axial holes are arranged in a one-to-one correspondence.

8. The sprayer wind tube test device according to any one of claims 1 to 7, characterized in that: The guide cone is coaxially arranged with the cone body.

9. The sprayer wind tube test device according to claim 8, characterized in that: The sprayer wind tube test device also includes a fan, one end of which is the fan outlet end, and the other end of which is the fan inlet end. The conical wind tube is located at the fan outlet end, and the end of the conical cylinder body close to the fan outlet end is the cone inlet end; the guide cone is in the shape of a truncated cone as a whole, and the large end of the guide cone is close to the cone inlet end.

10. The sprayer wind tube test device according to claim 9, characterized in that: The sprayer wind tube test device also includes a collector, which is located at the air inlet end of the fan.

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