Shaftless helical blade material hardness detection device

Abstract

The invention relates to the technical field of helical blades, and discloses a shaftless helical blade material hardness detection device which comprises a detection cylinder, a helical blade is rotatably mounted in the detection cylinder, an equipment box is arranged at one end of the detection cylinder, a motor is arranged in the equipment box, a rotating shaft of the motor is fixedly connected with the helical blade, and a flat plate is arranged at the upper end of the detection cylinder. A detection mechanism is arranged on the flat plate and comprises a moving rod, the moving rod penetrates through the flat plate in a sliding mode, a conical block is fixedly installed at the bottom end of the moving rod, the conical block abuts against the spiral blade intermittently, during detection, the conical block abuts against the spiral blade, and if the rising height of the moving rod is higher than a normal scale line, the hardness of the spiral blade is qualified; and if the lifting height of the moving rod is lower than the normal scale line, the hardness of the helical blade is unqualified. According to the device, equipment does not need to be stopped during detection, the hardness of the spiral blade can be automatically detected, the production efficiency is high, and the labor cost is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of spiral blades, and in particular to a device for detecting the hardness of materials of shaftless spiral blades. Background Art

[0002] The shaftless spiral blade is a key component for conveying materials. It is spiral in shape and spirals around the central axis. The middle of the blade is a hollow structure. During the feeding process of the shaftless spiral blade, the hardness of the spiral blade has an important influence on the conveying function of the spiral blade. If the hardness of the spiral blade is low, the shaftless spiral blade will be easily damaged when conveying materials, thereby affecting the normal conveying. Moreover, with the continuous use of the spiral blade, the blade will become thinner due to wear, which greatly affects the hardness of the spiral blade.

[0003] When the existing shaftless spiral blades are conveying materials, it is difficult for conventional sensors to directly detect the hardness of the spiral blades. Usually, the blade wear amount is used as a reference, especially the change in the blade edge length. Therefore, in order to detect the strength of the spiral blades, the feeding equipment has to be stopped and the blades have to be manually wiped before testing, resulting in low production efficiency and increased labor costs. Therefore, it does not meet the existing needs. In this regard, we propose a shaftless spiral blade material hardness detection device. Summary of the invention

[0004] The present invention provides a shaftless spiral blade material hardness detection device, which has the advantages of not needing to stop the equipment and can automatically detect the hardness of the spiral blade, having the beneficial effects of high production efficiency and reduced labor costs. It solves the problem mentioned in the above background technology that when the existing shaftless spiral blades are conveying materials, conventional sensors are difficult to directly detect the hardness of the spiral blades, and usually the blade wear amount is used as a reference, especially the change in the blade edge length. Therefore, in order to detect the strength of the spiral blades, the feeding equipment has to be stopped, and the blades have to be manually wiped for detection, resulting in low production efficiency and increased labor costs.

[0005] The present invention provides the following technical solutions: a device for testing the hardness of a material of a shaftless spiral blade, comprising a testing cylinder, in which a spiral blade to be tested is rotatably installed, an equipment box is arranged at one end of the testing cylinder, a motor is arranged inside the equipment box, a rotating shaft of the motor and the spiral blade are detachably installed, a flat plate is arranged at the upper end of the testing cylinder, a testing mechanism is arranged on the flat plate, the testing mechanism comprises a moving rod for measuring the hardness of the spiral blade, the moving rod passes through the flat plate, a conical block is arranged at the bottom end of the moving rod, and the conical block intermittently abuts against the spiral blade; During detection, the conical block contacts the spiral blade, and the moving rod moves up and down under the action of the conical block.

[0006] As an optional solution of the shaftless spiral blade material hardness detection device described in the present invention, wherein: a No. 1 sleeve is arranged on the flat plate, the movable rod slides through the No. 1 sleeve, a No. 1 compression spring for resetting the movable rod is arranged in the No. 1 sleeve, a movable plate is slidably installed in the No. 1 sleeve, and one end of the No. 1 compression spring is in contact with the movable plate.

[0007] As an optional solution of the shaftless spiral blade material hardness detection device described in the present invention, wherein: a No. 1 vertical plate for observing the displacement of the moving rod is vertically installed at the top end of the No. 1 sleeve, and a plurality of scale lines are equidistantly arranged on the No. 1 vertical plate, and a pair of the No. 1 vertical plates are arranged, and the surfaces where the scale lines of the pair of No. 1 vertical plates are located are arranged opposite to each other.

[0008] As an optional solution of the shaftless spiral blade material hardness detection device described in the present invention, wherein: a through slot is opened on the flat plate, the moving rod slides through the through slot, a moving plate is slidably installed on the flat plate, the motor is transmission-connected to the moving plate, and the No. 1 sleeve is installed on the moving plate; The movable plate moves, and the detection mechanism performs hardness detection on the spiral blades at different positions.

[0009] As an optional solution of the shaftless spiral blade material hardness detection device described in the present invention, wherein: a pair of No. 2 vertical plates are arranged on the flat plate, the inner wall of the No. 2 vertical plate is provided with a slide groove, both ends of the movable plate are slidably installed in the slide groove, both ends of the No. 2 vertical plate are rotatably installed with rollers with grooves, a belt is arranged in the groove of the roller, and the movable plate is fixedly installed on the belt.

[0010] As an optional solution of the shaftless spiral blade material hardness detection device described in the present invention, wherein: a flange is installed on the rotating shaft of the motor, a driving gear is installed on the flange, a transmission gear is rotatably installed in the equipment box, the driving gear is meshed with the transmission gear, and a driven gear is rotatably installed in the equipment box, and the driven gear is meshed with the transmission gear; A rotating rod is installed at one end of the driven gear, the rotating rod penetrates the equipment box, and a second bevel gear is installed at one end of the rotating rod. A first bevel gear is coaxially installed at one end of the roller, and the first bevel gear is meshed with the second bevel gear.

[0011] As an optional solution of the shaftless spiral blade material hardness detection device described in the present invention, wherein: the driving gear is set as an incomplete gear; When the transmission gear is meshed with the driving gear, the transmission gear rotates and the moving plate moves; When the transmission gear is not meshed with the driving gear, the moving plate stops moving, and the detection mechanism detects the spiral blade.

[0012] As an optional solution of the shaftless spiral blade material hardness detection device described in the present invention, wherein: a plurality of No. 1 wedge blocks are equidistantly installed on the flat plate, a cross bar is installed on the moving rod, a vertical bar is installed at one end of the cross bar, a slider is installed at the bottom end of the vertical bar, the slider is in intermittent contact with the No. 1 wedge block, and the cross-sections of the No. 1 wedge block and the slider are both set to be trapezoidal; When the first wedge block is in sliding contact with the inclined surface of the slider, the slider drives the moving rod to move vertically upward for a distance.

[0013] As an optional solution of the shaftless spiral blade material hardness detection device described in the present invention, wherein: a cleaning mechanism is installed on the movable plate, and the cleaning mechanism is arranged in front of the moving direction of the detection mechanism. The cleaning mechanism includes an air bag for blowing away the material in front of the detection mechanism, and the air inlet and outlet of the air bag are both installed with a one-way valve, and a pipe is installed on the one-way valve, and the bottom end of the pipe is located above the spiral blade.

[0014] As an optional solution of the shaftless spiral blade material hardness detection device described in the present invention, wherein: a pressure plate is fixedly installed on the top of the airbag, a pair of positioning rods are installed on the movable plate, the positioning rods slide and penetrate the pressure plate, a tension spring is arranged on the movable plate, and one end of the tension spring is fixedly connected to the pressure plate; A rotating plate is hingedly connected to one side of the pressure plate, a torsion spring is installed on the rotating plate, one end of the torsion spring is fixedly connected to the pressure plate, and the other end of the torsion spring is fixedly connected to the rotating plate; An L-shaped rod is also installed on the crossbar, and a No. 2 sleeve is installed at the bottom end of the L-shaped rod. A No. 2 wedge block is slidably installed in the No. 2 sleeve, and a No. 2 compression spring is arranged in the No. 2 sleeve, and one end of the No. 2 compression spring is in conflict with the No. 2 wedge block.

[0015] The present invention has the following beneficial effects: 1. The shaftless spiral blade material hardness testing device, when the motor drives the spiral blade to rotate, the spiral blade will interact with the conical block, and the moving rod will move up and down under the action of the conical block. Therefore, if the upward displacement of the moving rod is small or no displacement occurs, it means that the wear of the spiral blade is large and the hardness of the spiral blade is greatly reduced. If the upward displacement of the moving rod is obvious, it means that the wear of the spiral blade is not large and the hardness of the spiral blade is qualified. A No. 1 vertical plate is installed above the No. 1 sleeve, and a scale line for measuring the displacement of the moving rod is provided on the No. 1 vertical plate, so that the displacement of the moving rod can be observed more intuitively, and whether the hardness of the spiral blade is qualified can be further judged. The device does not need to stop the equipment during detection, and can automatically detect the hardness of the spiral blade, with high production efficiency and reduced labor costs.

[0016] 2. The shaftless spiral blade material hardness detection device, when the driving gear is meshed with the transmission gear, the motor will drive the roller to rotate, and the moving plate will move with the belt. When the transmission gear is not meshed with the driving gear, the moving plate will no longer move. At this time, the conical block on the detection mechanism detects the spiral blade. After the detection is completed, the transmission gear is meshed with the driving gear again, and so on. The detection mechanism realizes the function of automatically detecting spiral blades at different positions, which increases the practicality of the device; Moreover, when the movable plate moves, the slider slides in contact with the wedge block No. 1, thereby moving the vertical rod upward, further driving the movable rod and the conical block upward, preventing the conical block from scratching the spiral blade during movement, thereby increasing the reliability of the device.

[0017] 3. The shaftless spiral blade material hardness testing device has an airbag on the movable plate. When the movable plate moves, the No. 1 wedge block contacts the slider, and the vertical rod moves upward, further driving the L-shaped rod to move upward. At this time, the No. 2 wedge block conflicts with the rotating plate, and the pressure plate overcomes the tension of the tension spring and moves upward, and the airbag inhales air. When the L-shaped rod moves further upward, the rotating plate overcomes the elastic force of the torsion spring and deflects. At this time, the No. 2 wedge block no longer conflicts with the rotating plate, and the pressure plate moves downward under the tension of the tension spring. The airbag blows air outward through a pipe, and the bottom end of the pipe is arranged in front of the movement direction of the detection mechanism. The airbag blows away the material on the spiral blade to prevent the material from affecting the displacement of the conical block when the detection mechanism detects the spiral blade, thereby further increasing the reliability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0019] Figure 2 The cross-sectional structure of the present invention is shown in FIG. Figure 1 .

[0020] Figure 3 For the present invention Figure 2 Schematic diagram of the enlarged structure at point B in the middle.

[0021] Figure 4 It is a schematic diagram of the structure of the present invention from a top view.

[0022] Figure 5 It is a schematic structural diagram of the driving gear of the present invention.

[0023] Figure 6 For the present invention Figure 1 Schematic diagram of the enlarged structure at point A in the middle.

[0024] Figure 7 It is a schematic diagram of the structure of the detection mechanism and the cleaning mechanism of the present invention.

[0025] Figure 8 The cross-sectional structure of the cleaning mechanism of the present invention is shown in FIG. Figure 1 .

[0026] Fig. 9 The cross-sectional structure of the cleaning mechanism of the present invention is shown in FIG. Figure 2 .

[0027] Fig.10 For the present invention Fig. 9 Schematic diagram of the enlarged structure at point C in the middle.

[0028] In the figure: 101, detection cylinder; 102, equipment box; 103, spiral blade; 104, motor; 200, detection mechanism; 201, flat plate; 202, conical block; 203, moving rod; 204, No. 1 vertical plate; 206, No. 1 sleeve; 207, movable plate; 208, No. 1 compression spring; 301, flange; 302, driving gear; 303, transmission gear; 304, driven gear; 305, rotating rod; 306, first bevel gear; 307, second bevel gear; 308, through groove; 309, roller; 310, belt; 311, moving plate; 312, cross bar; 313, wedge block No. 1; 314, slider; 315, slide; 316, vertical bar; 317, vertical plate No. 2; 400, cleaning mechanism; 401, air bag; 402, pipeline; 403, positioning rod; 404, pressure plate; 405, one-way valve; 406, tension spring; 407, wedge block No. 2; 408, sleeve No. 2; 409, L-shaped rod; 410, compression spring No. 2; 411, rotating plate; 412, torsion spring. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] Embodiment 1: This embodiment aims to solve the problem that conventional sensors are difficult to directly detect the hardness of the existing shaftless spiral blades when conveying materials. Usually, the blade wear amount is used as a reference, especially the change in the blade edge length. Therefore, in order to detect the strength of the spiral blade, the feeding equipment has to be stopped and the blades have to be manually wiped before testing, resulting in low production efficiency and increased labor costs. Please refer to Figures 1 to 10 A shaftless spiral blade material hardness detection device includes a detection cylinder 101, in which a spiral blade 103 to be detected is rotatably installed, an equipment box 102 is arranged at one end of the detection cylinder 101, a motor 104 is arranged inside the equipment box 102, the spiral blade 103 is detachably mounted on the rotating shaft of the motor 104 through bolts and nuts, a flat plate 201 is arranged at the upper end of the detection cylinder 101, a detection mechanism 200 is arranged on the flat plate 201, the detection mechanism 200 includes a moving rod 203 for measuring the hardness of the spiral blade 103, the moving rod 203 passes through the flat plate 201, a conical block 202 is arranged at the bottom end of the moving rod 203, and the conical block 202 intermittently conflicts with the spiral blade 103.

[0031] During detection, the conical block 202 abuts against the spiral blade 103 , and the moving rod 203 moves up and down under the action of the conical block 202 .

[0032] For details, please refer to Figure 8 A No. 1 sleeve 206 is provided on the flat plate 201, and the moving rod 203 slides through the No. 1 sleeve 206. A No. 1 compression spring 208 for resetting the moving rod 203 is provided in the No. 1 sleeve 206. A movable plate 207 is slidably installed in the No. 1 sleeve 206, and one end of the No. 1 compression spring 208 is in contact with the movable plate 207.

[0033] In addition, a No. 1 vertical plate 204 is vertically installed on the top of the No. 1 sleeve 206. A plurality of scale lines are equidistantly arranged on the No. 1 vertical plate 204. A pair of No. 1 vertical plates 204 are arranged, and the surfaces where the scale lines of the pair of No. 1 vertical plates 204 are located are arranged opposite to each other. Therefore, the staff can easily see the scale of the No. 1 vertical plate 204 on both sides of the detection tube 101. It should be noted that when the spiral blade 103 is at the lowest qualified hardness (corresponding to the maximum wear of the spiral blade 103), the scale line corresponding to the highest position reached by the moving rod 203 is the qualified scale line. During the detection, when the rising height of the moving rod 203 is higher than the qualified scale line, it means that the hardness of the spiral blade 103 is qualified. Conversely, when the rising height of the moving rod 203 is lower than the qualified scale line, it means that the hardness of the spiral blade 103 is unqualified.

[0034] In this embodiment: when the motor 104 drives the spiral blade 103 to rotate, the spiral blade 103 will contact the conical block 202, and the moving rod 203 will move up and down under the action of the conical block 202. Therefore, if the upward displacement of the moving rod 203 is small or no displacement occurs, it means that the wear of the spiral blade 103 is large and the hardness of the spiral blade 103 is greatly reduced. If the upward displacement of the moving rod 203 is obvious, it means that the wear of the spiral blade 103 is not large and the hardness of the spiral blade 103 is qualified. A No. 1 vertical plate 204 is installed above the No. 1 sleeve 206, and a scale for measuring the displacement of the moving rod 203 is marked on the No. 1 vertical plate 204, so that the displacement of the moving rod 203 can be observed more intuitively, and whether the hardness of the spiral blade 103 is qualified can be further judged. The device does not need to stop the equipment during detection, and can automatically detect the hardness of the spiral blade 103, with high production efficiency and reduced labor costs.

[0035] Embodiment 2: This embodiment aims to facilitate solving the problem of enabling the movable plate 311 to move by itself, so as to detect the spiral blades 103 at different positions. This embodiment is an improvement made on the basis of embodiment 1. For details, please refer to Figures 1 to 10 A through slot 308 is provided on the flat plate 201, the moving rod 203 slides through the through slot 308, a moving plate 311 is slidably installed on the flat plate 201, the No. 1 sleeve 206 is installed on the moving plate 311, the moving plate 311 moves, and the detection mechanism 200 performs hardness detection on the spiral blades 103 at different positions.

[0036] Please refer to Figure 4 A pair of second vertical plates 317 are provided on the flat plate 201, and a slide groove 315 is installed on the second vertical plate 317. Both ends of the movable plate 311 are slidably installed in the slide groove 315. Both ends of the second vertical plate 317 are rotatably installed with rollers 309 with grooves. A belt 310 is provided in the groove of the roller 309, and the movable plate 311 is fixedly installed on the belt 310.

[0037] Also, please refer to Figure 5 A flange 301 is installed on the rotating shaft of the motor 104, and a driving gear 302 is installed on the flange 301. A transmission gear 303 is rotatably installed in the equipment box 102, and the driving gear 302 is meshed with the transmission gear 303. A driven gear 304 is rotatably installed in the equipment box 102, and the driven gear 304 is meshed with the transmission gear 303. A rotating rod 305 is installed at one end of the driven gear 304, and the rotating rod 305 is inserted into the equipment box 102, and a second bevel gear 307 is installed at one end of the rotating rod 305. A first bevel gear 306 is coaxially installed at one end of the roller 309, and the first bevel gear 306 is meshed with the second bevel gear 307.

[0038] Among them, the driving gear 302 is set as an incomplete gear. When the transmission gear 303 is engaged with the driving gear 302, the transmission gear 303 rotates, and the transmission gear 303 is driven by the second bevel gear 307, thereby driving the first bevel gear 306 to rotate, and further driving the roller 309 to rotate, so that the belt 310 installed on the roller 309 moves, and finally drives the moving plate 311 to move. When the transmission gear 303 is not engaged with the driving gear 302, the moving plate 311 stops moving, and the detection mechanism 200 detects the spiral blade 103.

[0039] Also, please refer to Figure 1 A plurality of No. 1 wedge blocks 313 are equidistantly installed on the flat plate 201, a cross bar 312 is installed on the moving rod 203, a vertical bar 316 is installed at one end of the cross bar 312, a slider 314 is installed at the bottom end of the vertical bar 316, the slider 314 is in intermittent contact with the No. 1 wedge block 313, and the cross-sections of the No. 1 wedge block 313 and the slider 314 are both set to be trapezoidal. When the No. 1 wedge block 313 slides in contact with the inclined surface of the slider 314, the slider 314 drives the moving rod 203 to move vertically upward for a distance.

[0040] It should be noted that when the detection mechanism 200 detects the spiral blade 103, the slider 314 is located between the two wedge blocks 313 No. 1, and during the detection process, the slider 314 moves up and down with the conical block 202 and does not contact the wedge block 313 No. 1, thereby preventing the friction between the wedge block 313 No. 1 and the slider 314 from interfering with the detection.

[0041] In this embodiment: when the motor 104 is running, the driving gear 302 is driven to rotate through the flange 301. When the driving gear 302 is meshed with the transmission gear 303, the motor 104 will drive the roller 309 to rotate, and the movable plate 311 moves with the belt 310. When the transmission gear 303 is not meshed with the driving gear 302, the movable plate 311 no longer moves. At this time, the conical block 202 on the detection mechanism 200 detects the spiral blade 103. After the detection is completed, the transmission gear 303 is meshed with the driving gear 302 again, and so on. The detection mechanism 200 realizes the function of automatically detecting the spiral blades 103 at different positions, which increases the practicality of the device. Moreover, when the movable plate 311 moves, the slider 314 slides in contact with the wedge block 313, so that the vertical rod 316 moves upward, further driving the movable rod 203 and the conical block 202 to move upward, preventing the conical block 202 from scratching the spiral blade 103 during movement, thereby increasing the reliability of the device.

[0042] Embodiment 3: This embodiment is intended to promote the solution of the problem of preventing the material from affecting the displacement of the conical block 202 when the detection mechanism 200 detects the spiral blade 103. This embodiment is an improvement made on the basis of embodiment 2. For details, please refer to Figures 1 to 10 A cleaning mechanism 400 is installed on the movable plate 311. The cleaning mechanism 400 is arranged in front of the moving direction of the detection mechanism 200. The cleaning mechanism 400 includes an airbag 401. The air inlet and the air outlet of the airbag 401 are both equipped with a one-way valve 405. The one-way directions of the two one-way valves 405 are opposite. A pipe 402 is installed on the one-way valve 405. The bottom end of the pipe 402 is located above the spiral blade 103. When the movable plate 311 moves forward, the airbag 401 blows away the material in front of the conical block 202 through the pipe 402.

[0043] The one-way valve 405 includes a spring and a baffle. Under normal conditions, the baffle seals the one-way valve 405. When the pressure on one side of the baffle is greater than the spring force, the baffle opens, so that the airflow can only pass through the one-way valve in one direction.

[0044] A pair of positioning rods 403 are installed on the movable plate 311, and a pressure plate 404 is slidably installed on the positioning rods 403. The pressure plate 404 is fixedly connected to the top of the airbag 401. A tension spring 406 is provided on the movable plate 311, and one end of the tension spring 406 is fixedly connected to the pressure plate 404. A rotating plate 411 is hinged on one side of the pressure plate 404, and a torsion spring 412 is installed on the rotating plate 411. One end of the torsion spring 412 is fixedly connected to the pressure plate 404, and the other end of the torsion spring 412 is fixedly connected to the rotating plate 411. An L-shaped rod 409 is also installed on the cross bar 312, and a No. 2 sleeve 408 is installed at the bottom end of the L-shaped rod 409. A No. 2 wedge block 407 is slidably installed in the No. 2 sleeve 408, and a No. 2 compression spring 410 is provided in the No. 2 sleeve 408, and one end of the No. 2 compression spring 410 is in conflict with the No. 2 wedge block 407.

[0045] Please note that, please refer to Figure 2 , Figure 7 , Fig. 9 , Fig.10 After the spiral blade 103 at the current position is detected, the detection mechanism 200 moves, and the slider 314 contacts the inclined surface of the first wedge block 313. The slider 314 drives the cross bar 312 to move upward through the vertical rod 316, thereby driving the L-shaped rod 409 to move upward, and then the second wedge block 407 contacts the rotating plate 411, further driving the pressure plate 404 to move upward. At this time, the tension spring 406 is stretched and stored, and the airbag 401 inhales. As the L-shaped rod 409 continues to Continuing to move upward, the rotating plate 411 overcomes the elastic force of the torsion spring 412 and deflects, the No. 2 wedge block 407 separates from the rotating plate 411, and the pressure plate 404 compresses the airbag 401 for blowing under the action of the tension spring 406, and the blowing work of the compressed airbag 401 is carried out during the movement of the moving plate 311. Therefore, when the moving plate 311 stops, the airbag 401 just cleans the material in front of the detection mechanism 200 to prevent the material from interfering with the conical block in the detection mechanism 200.

[0046] It should be noted that there is a certain distance between the No. 2 wedge block 407 and the rotating plate 411. Therefore, when the detection mechanism 200 performs detection, although the No. 2 wedge block 407 will move up and down with the conical block 202, the No. 2 wedge block 407 will not touch the rotating plate 411, thereby avoiding interference with the detection when the rotating plate 411 and the No. 2 wedge block 407 collide with each other. In addition, in the specific implementation, the No. 1 wedge block 313 has a certain height, thereby ensuring that when the slider 314 contacts the inclined surface of the No. 1 wedge block 313 and moves upward, the No. 2 wedge block 407 and the rotating plate 411 collide smoothly.

[0047] In this embodiment: the airbag 401 is arranged on the movable plate 311. When the movable plate 311 moves, the first wedge block 313 contacts the slider 314, and the vertical rod 316 moves upward, further driving the L-shaped rod 409 to move upward. At this time, the second wedge block 407 contacts the rotating plate 411, and the pressure plate 404 overcomes the tension of the tension spring 406 and moves upward. The airbag 401 inhales air. When the L-shaped rod 409 moves further upward, the rotating plate 411 overcomes the elastic force of the torsion spring 412 and deflects. At this time, the No. 2 wedge block 407 is no longer in conflict with the rotating plate 411, and the pressure plate 404 moves downward under the tension of the tension spring 406. The airbag 401 blows air outward through the pipe 402, and the bottom end of the pipe 402 is arranged in front of the movement direction of the detection mechanism 200. The airbag 401 blows away the material on the spiral blade 103 to prevent the material from affecting the displacement of the conical block 202 when the detection mechanism 200 detects the spiral blade 103, thereby further increasing the reliability of the device.

[0048] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0049] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A device for testing the hardness of a material of a shaftless spiral blade, comprising a testing cylinder (101), wherein a spiral blade (103) to be tested is rotatably mounted in the testing cylinder (101), an equipment box (102) is arranged at one end of the testing cylinder (101), a motor (104) is arranged inside the equipment box (102), and a rotating shaft of the motor (104) and the spiral blade (103) are detachably mounted, characterized in that: A flat plate (201) is disposed at the upper end of the detection cylinder (101), a detection mechanism (200) is disposed on the flat plate (201), the detection mechanism (200) comprises a moving rod (203) for measuring the hardness of the spiral blade (103), the moving rod (203) passes through the flat plate (201), a conical block (202) is disposed at the bottom end of the moving rod (203), and the conical block (202) intermittently abuts against the spiral blade (103); During detection, the conical block (202) contacts the spiral blade (103), and the moving rod (203) moves up and down under the action of the conical block (202).

2. The device for detecting hardness of a shaftless spiral blade material according to claim 1, characterized in that: A No. 1 sleeve (206) is arranged on the flat plate (201), the movable rod (203) slides through the No. 1 sleeve (206), a No. 1 compression spring (208) for resetting the movable rod (203) is arranged in the No. 1 sleeve (206), a movable plate (207) is slidably installed in the No. 1 sleeve (206), and one end of the No. 1 compression spring (208) contacts the movable plate (207).

3. The device for detecting hardness of a shaftless spiral blade material according to claim 2, characterized in that: A No. 1 vertical plate (204) for observing the displacement of the moving rod (203) is vertically mounted on the top end of the No. 1 sleeve (206), and a plurality of scale lines are equidistantly arranged on the No. 1 vertical plate (204). A pair of the No. 1 vertical plates (204) are provided, and the scale lines of the pair of No. 1 vertical plates (204) are arranged opposite to each other.

4. The device for detecting hardness of a shaftless spiral blade material according to claim 2, characterized in that: The plate (201) is provided with a through slot (308), the moving rod (203) slides through the through slot (308), a moving plate (311) is slidably mounted on the plate (201), the motor (104) is transmission-connected to the moving plate (311), and the No. 1 sleeve (206) is mounted on the moving plate (311); The movable plate (311) moves, and the detection mechanism (200) performs hardness detection on the spiral blades (103) at different positions.

5. The device for detecting hardness of a shaftless spiral blade material according to claim 4, characterized in that: A pair of second vertical plates (317) are provided on the flat plate (201), and a slide groove (315) is provided on the inner wall of the second vertical plate (317). Both ends of the movable plate (311) are slidably mounted in the slide groove (315). Rollers (309) with grooves are rotatably mounted on both ends of the second vertical plate (317), and a belt (310) is provided in the groove of the roller (309). The movable plate (311) is fixedly mounted on the belt (310).

6. The device for detecting hardness of a shaftless spiral blade material according to claim 5, characterized in that: A flange (301) is mounted on the rotating shaft of the motor (104), a driving gear (302) is mounted on the flange (301), a transmission gear (303) is rotatably mounted in the device box (102), the driving gear (302) meshes with the transmission gear (303), a driven gear (304) is rotatably mounted in the device box (102), the driven gear (304) meshes with the transmission gear (303); A rotating rod (305) is installed at one end of the driven gear (304), the rotating rod (305) is inserted into the equipment box (102), and a second bevel gear (307) is installed at one end of the rotating rod (305), and a first bevel gear (306) is coaxially installed at one end of the roller (309), and the first bevel gear (306) is meshed with the second bevel gear (307).

7. The device for detecting hardness of a shaftless spiral blade material according to claim 6, characterized in that: The driving gear (302) is configured as an incomplete gear; When the transmission gear (303) meshes with the driving gear (302), the transmission gear (303) rotates and the moving plate (311) moves; When the transmission gear (303) is not meshed with the driving gear (302), the moving plate (311) stops moving, and the detection mechanism (200) detects the spiral blade (103).

8. The device for detecting hardness of a shaftless spiral blade material according to claim 4, characterized in that: A plurality of No. 1 wedge blocks (313) are equidistantly mounted on the plate (201), a cross bar (312) is mounted on the moving rod (203), a vertical bar (316) is mounted on one end of the cross bar (312), a slider (314) is mounted on the bottom end of the vertical bar (316), the slider (314) is in intermittent contact with the No. 1 wedge block (313), and the cross sections of the No. 1 wedge block (313) and the slider (314) are both set to be trapezoidal; When the first wedge block (313) is in sliding contact with the inclined surface of the slider (314), the slider (314) drives the moving rod (203) to move vertically upwards for a distance.

9. The device for detecting hardness of a shaftless spiral blade material according to claim 8, characterized in that: A cleaning mechanism (400) is installed on the movable plate (311). The cleaning mechanism (400) is arranged in front of the detection mechanism (200) in the moving direction. The cleaning mechanism (400) comprises an air bag (401) for blowing away materials in front of the detection mechanism (200). Both the air inlet and the air outlet of the air bag (401) are installed with a one-way valve (405). A pipe (402) is installed on the one-way valve (405). The bottom end of the pipe (402) is located above the spiral blade (103).

10. The device for detecting hardness of a shaftless spiral blade material according to claim 9, characterized in that: A pressure plate (404) is fixedly mounted on the top of the airbag (401); a pair of positioning rods (403) are mounted on the movable plate (311); the positioning rods (403) slide through the pressure plate (404); a tension spring (406) is disposed on the movable plate (311); one end of the tension spring (406) is fixedly connected to the pressure plate (404); A rotating plate (411) is hingedly connected to one side of the pressing plate (404), a torsion spring (412) is installed on the rotating plate (411), one end of the torsion spring (412) is fixedly connected to the pressing plate (404), and the other end of the torsion spring (412) is fixedly connected to the rotating plate (411); An L-shaped rod (409) is also installed on the cross bar (312), a No. 2 sleeve (408) is installed at the bottom end of the L-shaped rod (409), a No. 2 wedge block (407) is slidably installed in the No. 2 sleeve (408), a No. 2 compression spring (410) is arranged in the No. 2 sleeve (408), and one end of the No. 2 compression spring (410) is in contact with the No. 2 wedge block (407).

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