Helical blade size detection gauge of conveyor
By designing a spiral blade detection fixture that includes a slide, a measuring component and a laser rangefinder, the problem of spiral blades being difficult to fix during measurement is solved, high-precision blade pitch and verticality detection is achieved, and the operation process is simplified.
Patent Information
- Application Number
- CN202422995433.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-05
- Publication Date
- 2025-09-30
- Estimated Expiration
- 2034-12-05
AI Technical Summary
The existing spiral blade measurement is difficult to fix, resulting in inaccurate measurement, and it is difficult to keep it horizontal and parallel, affecting the measurement accuracy and installation accuracy.
A conveyor spiral blade size detection fixture was designed. It uses a combination of a slide, measuring components, a magnetic block, and a laser rangefinder to ensure that the measuring tools are on the same parallel line. The blade pitch and verticality of the spiral blade are measured through multiple sets of measuring plates and a laser rangefinder.
The measurement accuracy and installation accuracy of the spiral blades are improved, the position adjustment and verticality detection of the spiral blades are ensured, and the operation process is simplified.
Smart Images

Figure CN223400340U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of blade detection, and in particular to a size detection tool for spiral blades of a conveyor. Background Art
[0002] A conveyor auger, also known as a screw conveyor, is a device that uses rotating spiral blades to propel materials forward, thereby achieving material conveyance. When the drive is activated, the spiral shaft drives the spiral blades to rotate. As the spiral blades rotate, they exert an axial thrust on the material in the trough. This thrust propels the material forward along the trough. Because the spiral blades have a continuous spiral shape, the material is "drawn" into the spiral, continuously conveyed from the feed inlet to the discharge outlet. For example, in a flour mill, an auger conveys flour from a storage silo to the processing equipment. The rotation of the spiral blades ensures a stable and continuous flow of flour within the closed trough, preventing flour from flying and being wasted.
[0003] In order to improve the efficiency of conveying, existing screw conveyors will adopt variable pitch spiral blades. The variable pitch position of the variable pitch spiral blades needs to be accurately measured so that they can be aligned to some positions prone to blockage during installation, changing the flow rate of the material and achieving anti-blocking effect. Some existing spiral blades adopt a variable pitch design. The variable pitch spiral blades can use a smaller pitch in areas where accumulation is prone to occur, break up and push the block materials one by one, and then increase the pitch in subsequent areas to speed up the overall conveying of the material, thereby effectively avoiding blockage and improving the operating efficiency of the equipment. Therefore, it is necessary to measure and record the pitch in sections, and at the same time, it is necessary to detect the verticality of the spiral blades to facilitate the subsequent installation of the spiral shaft.
[0004] In addition, the existing Chinese publication number CN221404148U discloses a spiral blade size detection fixture.
[0005] However, the following deficiencies still exist in actual use. Since the spiral blade is in a spiral shape, it is not easy to fix it during measurement, which can easily lead to inaccurate measurements. The above patent fixes the spiral blade through a combination of multiple components including a base frame, a spring, a first threaded rod, a first bevel gear, a second bevel gear, a third bevel gear, a second threaded rod, a third threaded rod, and an outer support rod. This is not only cumbersome to operate, but also does not propose how to measure and detect the spiral blade. When measuring the spiral blade, it is necessary to keep it horizontal and measure along a parallel line to ensure the accuracy of the measurement. Utility Model Content
[0006] In order to solve the tediousness of measurement and improve the accuracy of measurement, the present application provides a spiral blade size detection fixture for a conveyor.
[0007] The present application provides a conveyor spiral blade size detection fixture that adopts the following technical solution:
[0008] A spiral blade size detection and inspection tool for a conveyor includes a base plate, a group of slide grooves are opened on the top of the base plate, and multiple groups of measuring components are arranged on the base plate along the horizontal direction of the slide grooves. The measuring components include a slide plate slidably connected to the top of the base plate, a group of sliders are symmetrically fixedly connected to the bottom of the slide plate, and the two sliders are slidably fitted on the slide groove. A vertical plate B is fixedly connected to one side of the top of the slide plate, and a magnetic block is fixedly connected to the top of the vertical plate B. A sleeve plate is movably passed through the vertical plate B, and the sleeve plate and the magnetic block are magnetically attracted to each other. A toggle block is fixedly connected to one side of the sleeve plate, and a measuring plate is fixedly connected to the sleeve plate.
[0009] A scale plate is fixedly connected to one side of the top of the base plate close to the slide groove, support plates are symmetrically fixedly connected on both sides of the top of the base plate, side plates are welded above one side of the two support plates, fixed blocks are fixedly connected to one end of the top of the two side plates, and a laser rangefinder is fixedly connected to one side of the two fixed blocks.
[0010] By adopting the above technical solution, the opening of the slide groove can ensure that the slider remains straight during the movement, so that the position measured by the measuring plate is fixed, thereby ensuring the accuracy of the measured value. The sleeve plate is magnetically attracted to the magnetic block to lift the measuring plate. The measuring plate is used to fit on the thread pitch. The pitch size is calculated by judging the distance between the two measuring plates. The scale plate is used to measure the distance between the two measuring plates, thereby measuring the pitch size. The laser rangefinder is used to measure the distance between one end of the limit column and the laser rangefinder.
[0011] Preferably, circular holes are opened on both sides of the top of the two support plates, and limiting columns are movably passed through the circular holes. One end of the two limiting columns is fixedly connected to a clamping plate, and one side of the two clamping plates is slidably connected to the top surface of the support plate.
[0012] By adopting the above technical solution, the limiting column moves horizontally on the supporting plate to limit the clamping plate.
[0013] Preferably, compression springs are sleeved on the outer circumferential surfaces of the two limiting columns, one end of the two compression springs abuts against the clamping plate, and the other end of the two compression springs abuts against the support plate.
[0014] By adopting the above technical solution, the force of the compression spring acts horizontally on the clamping plate, so as to provide an inward clamping force to the clamping plate.
[0015] Preferably, the inner side surfaces of the two clamping plates are fixedly connected with rubber blocks, and one side of the two rubber blocks is an arc surface.
[0016] By adopting the above technical solution, the rubber block is used to provide friction during the clamping process, thereby improving the stability of the clamping. At the same time, the rubber block can produce a certain deformation during the clamping process.
[0017] Preferably, a spiral shaft is clamped and fixed between the two rubber blocks, and spiral blades are welded to the outer circumferential surface of the spiral shaft.
[0018] By adopting the above technical solution, the arc surface on one side of the rubber block can form a larger contact area with the spiral shaft, thereby improving the clamping force. The spiral blades on the spiral shaft will contact the measuring plate, and after contact, the distance between the two blades will be measured by the measuring plate.
[0019] Preferably, a fixing plate is fixedly connected to one side of the two side plates, and a display is fixedly installed on the top of the two fixing plates.
[0020] By adopting the above technical solution, the display is used to display the numerical value of the distance, and detection is performed through comparison of the numerical values.
[0021] Preferably, a vertical plate A is fixedly connected to the middle of one side of the top of the base plate, an electric push rod is symmetrically fixedly connected above one side of the vertical plate A, one end of the two electric push rods is fixedly connected to a push plate that contacts the outer peripheral surface of the spiral blade, and support legs are symmetrically fixedly connected to the four corners of the bottom of the base plate.
[0022] By adopting the above technical solution, the electric push rod is used to drive the push plate to move horizontally to one side, and is used to squeeze the spiral blade to move to one side.
[0023] In summary, this application includes at least one of the following beneficial technical effects:
[0024] 1. By installing the measuring tool on the chute, the measuring tool can always be kept on the same parallel line during the measurement process, thereby improving the measurement accuracy. By measuring the same point on the horizontal position of the spiral blade through multiple sets of measuring plates, the size of the spiral blade pitch can be measured, thereby facilitating the adjustment of the spiral blade position during subsequent installation of the spiral blade and achieving the effect of accurate measurement.
[0025] 2. By pushing the spiral blade to one side, the distance from the limit post to the laser rangefinder changes. By comparing the values, it is possible to determine whether the verticality of the spiral blade is flat, thereby achieving the effect of quickly detecting verticality. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] Figure 1 A schematic diagram of the overall structure of this application document;
[0027] Figure 2 A schematic diagram of the structure of the support plate of this application document;
[0028] Figure 3 A schematic diagram of the structure of the base plate of this application document;
[0029] Figure 4 A schematic diagram of the structure of the measurement components of this application document;
[0030] Figure 5 This is a schematic diagram of the overall side view structure of this application document.
[0031] Reference numerals: 1, bottom plate; 101, slide; 102, support leg;
[0032] 2. Support plate; 201. Limit column; 202. Clamping plate; 203. Compression spring; 204. Rubber block; 205. Side plate; 206. Fixing block; 207. Laser rangefinder; 208. Fixing plate; 209. Display; 3. Riser A; 4. Electric push rod; 5. Pushing plate; 6. Scale plate;
[0033] 7. Measuring components; 701. Slide plate; 702. Slider; 703. Vertical plate B; 704. Cover plate; 705. Toggle block; 706. Magnetic block; 707. Measuring plate;
[0034] 8. Spiral shaft; 9. Spiral blade. DETAILED DESCRIPTION
[0035] The following is combined with Figure 1-Figure 5 This application is described in further detail.
[0036] The embodiment of the present application discloses a measuring tool for detecting the size of spiral blades of a conveyor.
[0037] Reference Figure 1 、 Figure 2 and Figure 5 As shown, a conveyor spiral blade size detection fixture includes a base plate 1, a set of chute 101 is symmetrically opened in the middle of the top of the base plate 1, and multiple sets of upper measuring components 7 are provided on the base plate 1 along the horizontal direction of the chute 101. The measuring components 7 include a slide 701 slidably connected to the top of the base plate 1, and a set of sliders 702 are symmetrically fixedly connected to the bottom of the slide 701. The two sliders 702 are slidably fitted on the chute 101, and a vertical plate B70 is fixedly connected to one side of the top of the slide 701. 3. A magnetic block 706 is fixedly connected to the top of the vertical plate B703. A sleeve plate 704 is movably passed through the vertical plate B703. The sleeve plate 704 and the magnetic block 706 are magnetically attracted to each other. A toggle block 705 is fixedly connected to one side of the sleeve plate 704. A measuring plate 707 is fixedly connected to the sleeve plate 704. The measuring plate 707 moves up and down on the vertical plate B703. When in use, the measuring plate 707 is located above the vertical plate B703. When not in use, the measuring plate 707 is located below the vertical plate B703.
[0038] Reference Figure 1 、 Figure 2 and Figure 5 As shown, the top of the bottom plate 1 is symmetrically fixedly connected with support plates 2 on both sides, and the middle of the top of the two support plates 2 is a concave groove. Circular holes are opened on both sides of the top of the two support plates 2, and the limiting columns 201 are movable through the circular holes. The diameter of the limiting columns 201 is the same as the inner diameter of the circular holes. The ends of the two limiting columns 201 away from the circular holes are fixedly connected with clamping plates 202. One side of the two clamping plates 202 is slidably connected to the rectangular groove on the top of the support plate 2. The outer peripheral surface of the two limiting columns 201 is provided with a compression spring 203. The two compression springs One end of the spring 203 is in contact with the clamping plate 202, and the other ends of the two compression springs 203 are away from the clamping plate 202 and in contact with the support plate 2. The inner sides of the two clamping plates 202 are installed with rubber blocks 204 by bolts. One side of the two rubber blocks 204 is an arc surface, and there is a one-centimeter gap between the bottom surfaces of the two rubber blocks 204 and the upper surface of the support plate 2. The spiral shaft 8 is clamped and fixed between the two rubber blocks 204, and the height of the rubber block 204 is higher than the diameter of the spiral shaft 8. The outer peripheral surface of the spiral shaft 8 is spot-welded with spiral blades 9.
[0039] Reference Figure 1 、 Figure 3 、 Figure 4 and Figure 5 As shown, a side plate 205 is welded to the side of the two support plates 2 close to the circular hole, and a fixing block 206 is fixedly connected to one end of the top of the two side plates 205. One side of the two fixing blocks 206 support plates 2 is fixed to the mounting end of the laser rangefinder 207, and the emitting end of the laser rangefinder 207 is opposite to the limiting column 201. At the same time, the two end faces of the limiting column 201 are set to smooth surfaces to achieve better reflection of the laser. The model of the laser rangefinder 207 is the Keyence GV-H130 Keyence laser sensor. A fixing plate 208 is provided on the side of the two side plates 205 away from the support plate 2. A display 209 is fixedly installed on the top of the two fixing plates 208. The display 209 is an LED numerical display panel, and the display 209 is connected to the laser rangefinder 207 through wires.
[0040] Among them, the laser rangefinder 207 and the display 209 are prior art and will not be described in detail. The wiring diagram of the laser rangefinder 207 in the present invention is common knowledge in the field, and its working principle is already known technology, so the control method and wiring arrangement of the laser rangefinder 207 will not be explained in detail.
[0041] A scale plate 6 is fixedly installed on the side of the top of the base plate 1 close to the slide groove 101 by bolts, and a vertical plate A3 is fixedly connected to the middle of the top of the base plate 1 away from the side plate 205. Electric push rods 4 are symmetrically fixedly connected to the upper side of the vertical plate A3 close to the scale plate 6. The telescopic ends of the two electric push rods 4 are threadedly connected to push plates 5. One side of the push plate 5 abuts against the outer peripheral surface of the spiral blade 9. Support legs 102 are symmetrically fixedly connected to the four corners of the bottom of the base plate 1.
[0042] The implementation principle of the spiral blade size detection fixture of a conveyor of the present application is as follows: first, the spiral blade 9 is welded to the spiral shaft 8 by multiple point spot welding, and then the spiral shaft 8 is placed on the support plate 2 between the two rubber blocks 204. Under the horizontal force of the two compression springs 203, an inward clamping force is provided to the clamping plate 202, thereby driving the two rubber blocks 204 to clamp and fix the spiral shaft 8, thereby fixing the spiral blade 9, thereby achieving the effect of convenient operation, and then by moving the multiple slides 701, the multiple two sliders 702 are moved on the slide groove 101, and then the multiple vertical plates B703 are moved between the two spiral blades, and then by lifting the toggle block 705, the sleeve plate 704 is driven to rise, so that it is adsorbed on the magnetic block 706, and then the measuring plate 707 is moved so that each measuring plate 707 is against the same position of the threaded blade, and then according to the scale plate 6. After the values are recorded, the pitch of each segment can be clearly determined by calculation, thereby completing the detection of the pitch of the threaded blade 9. Finally, by unfolding the electric push rod 4, the push plate 5 is driven to squeeze one side of the spiral blade 9, so that the spiral blade 9 and the spiral shaft 8 move to one side, thereby squeezing the rubber block 204, causing the rubber block 204 to deform and wrap around the outer circumferential surface of the spiral shaft 8, thereby squeezing the limit column 201 on one side of the support plate 2 and moving to one side. At this time, the detection end of the laser rangefinder 207 detects the distance by detecting the phase difference between the emitted light and the received reflected light when propagating in space, thereby measuring the change in the distance between the limit column 201 and the laser rangefinder 207, and reading it through the display 209. By comparing the values read out by the two displays 209, it can be determined whether the spiral blade 9 is vertical, thereby completing the verticality detection.
[0043] The above are merely optional embodiments of the present disclosure and are not intended to limit the present disclosure. Those skilled in the art will readily appreciate that the present disclosure may be modified and varied in various ways. Any modifications, equivalent substitutions, improvements, and the like made within the spirit and principles of the present disclosure shall be included within the scope of protection of the present disclosure.
Claims
1. A conveyor spiral blade size detection device, comprising a bottom plate (1), characterized in that: A group of slide grooves (101) are provided on the top of the bottom plate (1), and a plurality of groups of upper measuring components (7) are provided on the bottom plate (1) along the horizontal direction of the slide grooves (101); The measuring component (7) includes a slide plate (701) slidably connected to the top of the bottom plate (1), a group of sliders (702) are symmetrically fixedly connected to the bottom of the slide plate (701), and the two sliders (702) are slidably matched on the slide groove (101). A vertical plate B (703) is fixedly connected to one side of the top of the slide plate (701), and a magnetic block (706) is fixedly connected to the top of the vertical plate B (703). A sleeve plate (704) is movably passed through the vertical plate B (703), and the sleeve plate (704) and the magnetic block (706) are magnetically attracted to each other. A toggle block (705) is fixedly connected to one side of the sleeve plate (704), and a measuring plate (707) is fixedly connected to the sleeve plate (704). A scale plate (6) is fixedly connected to one side of the top of the bottom plate (1) close to the slide groove (101); support plates (2) are symmetrically fixedly connected to both sides of the top of the bottom plate (1); side plates (205) are welded above one side of the two support plates (2); fixed blocks (206) are fixedly connected to one end of the top of the two side plates (205); and a laser rangefinder (207) is fixedly connected to one side of the two fixed blocks (206).
2. The spiral blade size detection fixture for a conveyor according to claim 1 is characterized by: Circular holes are provided on both sides of the top of the two support plates (2), and a limiting column (201) is movably passed through the circular hole. One end of the two limiting columns (201) is fixedly connected to a clamping plate (202), and one side of the two clamping plates (202) is slidably connected to the top surface of the support plate (2).
3. The spiral blade size detection fixture for a conveyor according to claim 2, characterized in that: Compression springs (203) are sleeved on the outer peripheral surfaces of the two clamping plates (202), one end of the two compression springs (203) abuts against the clamping plates (202), and the other end of the two compression springs (203) abuts against the support plate (2).
4. The spiral blade size detection fixture for a conveyor according to claim 2, characterized in that: The inner side surfaces of the two clamping plates (202) are both fixedly connected with rubber blocks (204), and one side of the two rubber blocks (204) is an arc surface.
5. The spiral blade size detection fixture for a conveyor according to claim 4, characterized in that: A spiral shaft (8) is clamped and fixed between the two rubber blocks (204), and a spiral blade (9) is welded to the outer peripheral surface of the spiral shaft (8).
6. The spiral blade size detection fixture for a conveyor according to claim 2, characterized in that: A fixing plate (208) is fixedly connected to one side of the two side plates (205), and a display (209) is fixedly installed on the top of the two fixing plates (208).
7. The spiral blade size detection fixture for a conveyor according to claim 1, characterized in that: A vertical plate A (3) is fixedly connected to the middle of one side of the top of the base plate (1), an electric push rod (4) is symmetrically fixedly connected to the upper side of one side of the vertical plate A (3), one end of each of the two electric push rods (4) is fixedly connected to a push plate (5) in contact with the outer peripheral surface of the spiral blade (9), and support legs (102) are symmetrically fixedly connected to the four corners of the bottom of the base plate (1).
Citation Information
Patent Citations
Helical blade size detection tool
CN221404148U