Precise motor control mechanism of microwave moisture tester

Abstract

The utility model discloses a precise motor control mechanism of a microwave moisture tester. The precise motor control mechanism comprises a conveying frame arranged on four supporting legs, a fixed seat is fixedly arranged below the conveying frame; a first semi-circular ring and a second semi-circular ring are rotationally arranged on the fixed seat, and the first semi-circular ring and the second semi-circular ring are connected end to end; u-shaped plates which are symmetrically arranged are fixedly connected to the first semicircular ring and the second semicircular ring; through cooperation of the first semicircular ring, the second semicircular ring and the fixing base, the first semicircular ring and the second semicircular ring are rotated, the transmitting and receiving antennas can be adjusted at any angle, moisture detection requirements in different scenes are met, the transmitting and receiving antennas do not need to be disassembled, the adjusting mode is simple, and due to the fact that the transmitting and receiving antennas are located at the fixed distance all the time, the detection accuracy is improved. The detection precision is high.

Description

Technical Field

[0001] The utility model belongs to the technical field of moisture detection equipment, and in particular relates to a precision motor control mechanism of a microwave moisture tester. Background Art

[0002] The most common moisture testing equipment is the microwave moisture meter, which uses the microwave moisture method principle, which is a fast, sensitive and non-destructive moisture testing method. It has the advantage of direct online real-time measurement of moisture content. It has advantages over traditional moisture measurement methods in many fields such as agricultural products, papermaking, tobacco, chemicals, petroleum, feed, traditional Chinese medicine, coal, mineral processing and fertilizers. Depending on the measured items, the microwave moisture meter can be installed in different ways.

[0003] Belt material measurement is an online measurement method where the material is placed on the conveyor belt (e.g. Figure 7 As shown in the figure, the material to be tested runs continuously through the belt, and cooperates with the transmitting antenna and receiving antenna on the upper and lower sides of the belt on the microwave moisture meter, so that the microwave penetrates the belt and the material on the belt to measure the real-time moisture of the material on the belt;

[0004] Bag material measurement is an online measurement method for incoming bags (such as Figure 8 As shown in the figure, the quality of incoming or outgoing materials can be controlled at every stage. The receiving antenna and transmitting antenna of the microwave moisture meter are installed on the left and right sides of the conveyor belt respectively. The conveyor belt conveys the bags to the detection area, triggering the belt control to pause, and the microwave moisture meter measures the moisture of the bags. After that, the belt continues to move forward to measure the next bag.

[0005] From the above, it can be seen that when testing materials with belts as containers, the transmitting antenna and receiving antenna of the microwave moisture meter are usually installed on the upper and lower sides of the belt; when testing materials with bags as containers, the transmitting antenna and receiving antenna of the microwave moisture meter are usually installed on the left and right sides of the belt. Therefore, when testing different materials, it is necessary to replace different testing equipment, or disassemble and reinstall the microwave moisture meter to meet the testing needs, which is more cumbersome. Utility Model Content

[0006] In order to solve the cumbersome technical problem in the prior art that when testing different materials, different testing equipment needs to be replaced, or the microwave moisture meter needs to be disassembled and reinstalled to meet the testing needs, the utility model provides a precision motor control mechanism for a microwave moisture tester.

[0007] The purpose of the utility model can be achieved through the following technical solutions:

[0008] A precision motor control mechanism of a microwave moisture tester comprises a conveying frame arranged on four legs; a fixing seat is fixedly arranged below the conveying frame; a first semicircular ring and a second semicircular ring are rotatably arranged on the fixing seat, and the first semicircular ring and the second semicircular ring are connected to each other end to end; the first semicircular ring and the second semicircular ring are both fixedly connected with symmetrically arranged U-shaped plates; a transmitting antenna is arranged on the U-shaped plate on the first semicircular ring, and a receiving antenna is arranged on the U-shaped plate on the second semicircular ring relative to the transmitting antenna.

[0009] Furthermore, the outer surface of the U-shaped plate is provided with a groove body; the four corners of the groove body are provided with first nail holes; the groove body is provided with a pad; and the first bolts are provided in the first nail holes.

[0010] Furthermore, both ends of the first semicircular ring and the second semicircular ring are fixedly connected with fixing blocks, and the fixing blocks are symmetrically provided with second nail holes; and second bolts are arranged in the second nail holes.

[0011] Furthermore, the first semicircular ring and the second semicircular ring are fixedly connected with a fixing ring on both sides by screws; the cross-section of the fixing ring is an L-shaped structure; a first arc-shaped groove is opened in the middle of the fixing seat, and the U-shaped plate is located at the position of the first arc-shaped plate; the fixing seat is opened with second arc-shaped grooves on both sides corresponding to the first arc-shaped groove, and the fixing ring is rotatably connected in the corresponding second arc-shaped groove.

[0012] Furthermore, a plurality of hinge blocks are fixedly connected in the middle of the bottom of the conveying frame by screws, and the hinge blocks are in a T-shaped structure; and a shaft rod is connected between the hinge blocks for common rotation.

[0013] Furthermore, a driving gear is fixedly connected to one end of the shaft, and two hinge blocks are located at both sides of the driving gear; an inner ruler ring is fixedly connected to one of the fixing rings, and the inner ruler ring is meshed with the driving gear.

[0014] Furthermore, a worm is fixedly connected to the other end of the shaft; a first mounting plate is fixedly connected to the conveying frame at a position corresponding to the side of the worm via screws; a second mounting plate is fixedly connected to the side of the first mounting plate away from the worm via screws; the first mounting plate and the second mounting plate are jointly fixedly connected to a motor via screws; a worm wheel is fixedly connected to the output end of the motor, and the worm wheel is meshed with the worm.

[0015] Beneficial effects of the utility model:

[0016] The utility model cooperates with the first semicircular ring, the second semicircular ring, and the fixing seat to rotate the first semicircular ring and the second semicircular ring, so that the transmitting and receiving antennas can be adjusted to any angle, which adapts to the moisture detection needs in different scenarios. There is no need to disassemble them, and the adjustment method is relatively simple. In addition, since the transmitting and receiving antennas are always at a fixed distance, the detection accuracy is relatively high.

[0017] The utility model realizes the purpose of automatically adjusting the transmitting antenna and the receiving antenna by driving a motor to rotate the worm wheel, the worm wheel drives the worm to rotate, the worm drives the driving gear to rotate, and the driving gear drives the fixing ring and the first semicircular ring and the second semicircular ring connected to the fixing ring to rotate, so as to achieve the purpose of automatically adjusting the transmitting antenna and the receiving antenna, and the adjustment accuracy is higher. Moreover, since the worm cannot drive the worm wheel to rotate, the first semicircular ring and the second semicircular ring are in an automatic locking state after adjustment, and will not deflect, and will not cause a difference in detection data. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is an exploded view of the utility model;

[0021] Figure 3 It is a structural schematic diagram of the worm in the utility model;

[0022] Figure 4 It is a structural schematic diagram of the fixing ring in the utility model;

[0023] Figure 5 It is a side view of the utility model;

[0024] Figure 6 It is a cross-sectional view of the utility model;

[0025] Figure 7 This is a schematic diagram of bulk material detection in the utility model;

[0026] Figure 8 This is a schematic diagram of bag material detection in the utility model;

[0027] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0028] 1. Conveying rack; 2. Fixing seat; 201. First arc groove; 202. Second arc groove; 3. First semicircular ring; 301. Fixing block; 302. Second nail hole; 303. Second bolt; 4. Second semicircular ring; 5. U-shaped plate; 6. Transmitting antenna; 7. Receiving antenna; 8. Slot body; 9. First nail hole; 10. Pad; 11. First bolt; 12. Fixing ring; 121. Inner ruler ring; 122. Articulated block; 123. Shaft; 124. Driving gear; 125. Worm; 126. First mounting plate; 127. Second mounting plate; 128. Motor; 129. Worm gear. DETAILED DESCRIPTION

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

[0030] See also Figure 1 - Figure 6 As shown, a precision motor control mechanism of a microwave moisture tester comprises a conveying frame 1 arranged on four legs, and the conveying frame 1 is used for conveying materials; a fixing seat 2 is fixedly arranged below the conveying frame 1; a first semicircular ring 3 and a second semicircular ring 4 are rotatably arranged on the fixing seat 2, and the first semicircular ring 3 and the second semicircular ring 4 are connected to each other end to end, forming a circular structure and the conveying frame 1 is arranged inside; the first semicircular ring 3 and the second semicircular ring 4 are fixedly connected with symmetrically arranged U-shaped plates 5; the U-shaped plate 5 located on the first semicircular ring 3 can be optionally provided with a transmitting antenna 6, and the U-shaped plate 5 located on the second semicircular ring 4 is provided with a receiving antenna 7 relative to the transmitting antenna 6.

[0031] The outer surface of the U-shaped plate 5 is provided with a groove body 8; the four corners of the groove body 8 are provided with first nail holes 9; a pad 10 is provided in the groove body 8; a first bolt 11 is provided in the first nail hole 9, and the transmitting antenna 6 and the receiving antenna 7 are fixed to the corresponding U-shaped plate 5 through the cooperation of the pad 10, the first bolt 11 and the first nail hole 9.

[0032] Both ends of the first semicircular ring 3 and the second semicircular ring 4 are fixedly connected with a fixing block 301, and the fixing block 301 is symmetrically provided with second nail holes 302; second bolts 303 are arranged in the second nail holes 302, and the first semicircular ring 3 and the second semicircular ring 4 are fixed to each other through the cooperation of the second nail holes 302 and the second bolts 303.

[0033] Please refer again Figure 4As shown, the first semicircular ring 3 and the second semicircular ring 4 are fixedly connected with a fixing ring 12 on both sides by screws; the cross section of the fixing ring 12 is L-shaped; a first arc groove 201 is opened in the middle of the fixing seat 2, and the U-shaped plate 5 is located at the position of the first arc plate; the fixing seat 2 is opened with second arc grooves 202 on both sides corresponding to the first arc groove 201, and the fixing ring 12 is rotatably connected in the corresponding second arc groove 202.

[0034] Please refer again Figure 3 and Figure 5 As shown, a plurality of hinge blocks 122 are fixedly connected to the middle of the bottom of the conveying frame 1 by screws, and the hinge blocks 122 are T-shaped; a shaft 123 is connected to the hinge blocks 122 for common rotation; a driving gear 124 is fixedly connected to one end of the shaft 123, and two of the hinge blocks 122 are located on both sides of the driving gear 124; an inner ruler ring 121 is fixedly connected to one of the fixed rings 12, and the inner ruler ring 121 is meshed with the driving gear 124, and is used to drive the first semicircular ring 3 and the second semicircular ring 4 to rotate;

[0035] A worm 125 is fixedly connected to the other end of the shaft 123, and another hinge block 122 is located at the end of the worm 125 away from the driving gear 124; a first mounting plate 126 is fixedly connected to the conveying frame 1 at a position corresponding to the side of the worm 125 via screws; a second mounting plate 127 is fixedly connected to the side of the first mounting plate 126 away from the worm 125 via screws; the first mounting plate 126 is T-shaped, and the second mounting plate 127 is Z-shaped; the first mounting plate 126 and the second mounting plate 127 are fixedly connected to a motor 128 via screws; a worm wheel 129 is fixedly connected to the output end of the motor 128, and the worm wheel 129 is meshed with the worm 125.

[0036] When in use, bulk materials, bag materials or special-shaped materials are placed at the conveying end of the conveyor frame 1, and the conveyor belt on the conveyor frame 1 is used to transfer the materials to between the first semicircular ring 3 and the second semicircular ring 4, and then the transmitting antenna 6 installed on the U-shaped plate 5 is used to transmit microwaves to the materials, and then the receiving antenna 7 receives the microwave signal to detect the moisture contained in the materials in real time. When detecting different materials, the different positions of the receiving antenna 7 and the transmitting antenna 6 are changed:

[0037] When the moisture detection object is bulk material, by applying force to the fixing ring 12 to make it rotate on the fixing seat 2, the transmitting antenna 6 and the receiving antenna 7 fixed on the first semicircular ring 3 and the second semicircular ring 4 are located at the upper and lower sides of the conveyor belt, so as to achieve the purpose of detecting the bulk material;

[0038] When the moisture detection object is a bag material, by applying force to the fixing ring 12 again, the transmitting antenna 6 is adjusted to the position of the left and right sides of the conveyor belt, so as to achieve the purpose of detecting the bag material;

[0039] When the moisture detection object is a special-shaped material, by applying force to the fixing ring 12 again, the transmitting antenna 6 and the receiving antenna 7 are adjusted to an oblique angle or any other angle that is convenient for moisture detection, the purpose of detecting the special-shaped material can be achieved;

[0040] Compared with the prior art, the device can adapt to the moisture detection needs in different scenarios by adjusting the transmitting and receiving antennas 7 to any angle, without the need to disassemble them, and the adjustment method is relatively simple. Moreover, since the transmitting and receiving antennas 7 are always at a fixed distance, the detection accuracy is relatively high.

[0041] In addition, it can also be presented as a cross on the U-shaped plate 5, located at the upper and lower sides and the left and right sides of the conveyor frame 1, so as to realize the detection of bag materials and bulk materials without the need for adjustment, which is faster and more convenient;

[0042] The motor 128 drives the worm wheel 129 to rotate, the worm wheel 129 drives the worm 125 to rotate, the worm 125 drives the driving gear 124 to rotate, and the driving gear 124 drives the fixed ring 12 and the first semicircular ring 3 and the second semicircular ring 4 connected to the fixed ring 12 to rotate, so as to achieve the purpose of automatically adjusting the transmitting antenna 6 and the receiving antenna 7, and the adjustment accuracy is higher. Since the worm 125 cannot drive the worm wheel 129 to rotate, the first semicircular ring 3 and the second semicircular ring 4 are in an automatic locked state after adjustment, and will not deflect, which will not cause the detection data to be poor.

[0043] The fixing ring 12 with an L-shaped cross section can be firmly buckled in the second arc groove 202, which will not easily shake and has better rotation accuracy; the setting of the first arc groove 201 prevents the fixing seat 2 from causing motion interference with the U-shaped plate 5, which causes the first semicircular ring 3 and the second semicircular ring 4 to be unable to rotate, thereby making it impossible to adjust the transmitting antenna 6 and the receiving antenna 7;

[0044] Installing the transmitting and receiving antennas 7 of the microwave moisture meter in the U-shaped plate 5 can protect it from being damaged by external factors during use;

[0045] The arrangement of the first bolts 11, the second bolts 303 and the screws can quickly and conveniently disassemble and install the device, and is convenient for maintenance, processing, production and transportation.

[0046] In the description of the specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0047] The above contents are merely examples and explanations of the structure of the utility model. The technicians in the technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of the utility model.

Claims

1. The precision motor control mechanism of the microwave moisture tester is characterized by: The invention comprises a conveying frame (1) arranged on four supporting legs; a fixing seat (2) is fixedly arranged below the conveying frame (1); a first semicircular ring (3) and a second semicircular ring (4) are rotatably arranged on the fixing seat (2), and the first semicircular ring (3) and the second semicircular ring (4) are connected to each other end to end; and symmetrically arranged U-shaped plates (5) are fixedly connected to the first semicircular ring (3) and the second semicircular ring (4).

2. The precision motor control mechanism of the microwave moisture tester according to claim 1 is characterized in that: The outer surface of the U-shaped plate (5) is provided with a groove body (8); the four corners of the groove body (8) are provided with first nail holes (9); a pad (10) is provided in the groove body (8); and a first bolt (11) is provided in the first nail hole (9).

3. The precision motor control mechanism of the microwave moisture tester according to claim 1 is characterized in that: Both ends of the first semicircular ring (3) and the second semicircular ring (4) are fixedly connected with a fixing block (301), and the fixing block (301) is symmetrically provided with a second nail hole (302); and a second bolt (303) is arranged in each of the second nail holes (302).

4. The precision motor control mechanism of the microwave moisture tester according to claim 1 is characterized in that: A fixing ring (12) is fixedly connected to both sides of the first semicircular ring (3) and the second semicircular ring (4) via screws; the fixing ring (12) has an L-shaped cross section; a first arc-shaped groove (201) is provided in the middle of the fixing seat (2), and the U-shaped plate (5) is located at the position where the first arc-shaped plate is located; and second arc-shaped grooves (202) are provided on both sides of the fixing seat (2) corresponding to the first arc-shaped groove (201).

5. The precision motor control mechanism of the microwave moisture tester according to claim 4 is characterized in that: A plurality of hinge blocks (122) are fixedly connected in the middle of the bottom of the conveying frame (1) via screws, and the hinge blocks (122) are in a T-shaped structure; shafts (123) are connected between the hinge blocks (122) for common rotation.

6. The precision motor control mechanism of the microwave moisture tester according to claim 5, characterized in that: A driving gear (124) is fixedly connected to one end of the shaft rod (123); a worm (125) is fixedly connected to the other end of the shaft rod (123); an inner ruler ring (121) is fixedly connected to one of the fixing rings (12), and the inner ruler ring (121) is meshed with the driving gear (124).

7. The precision motor control mechanism of the microwave moisture tester according to claim 6, characterized in that: The conveying frame (1) is fixedly connected to a first mounting plate (126) at a position corresponding to the side of the worm (125); a second mounting plate (127) is fixedly connected to a side of the first mounting plate (126) away from the worm (125); a motor (128) is fixedly connected to the first mounting plate (126) and the second mounting plate (127); a worm wheel (129) is fixedly connected to the output end of the motor (128), and the worm wheel (129) is meshed with the worm (125).

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