阅读说明：本技术 一种旋转型气动振动器 (Rotary pneumatic vibrator ) 是由 刘艳霞 于 2021-08-27 设计创作，主要内容包括：本发明涉及气动设备技术领域,且公开了一种旋转型气动振动器,壳体内部的中部开设有两侧分别与进气头和出气头连通的环腔,环腔的内部活动套接有转子,限位滑槽的内圈处活动套接有电磁铁,电磁铁侧壁固定连接有从调节槽伸出的调节头,变阻腔内壁的中部固定安装有第一导电环,固定轴外圈固定套接有导电滑环,导电滑环外圈固定套接有第二导电环,第二导电环外圈一侧的中部固定安装有导电套,导电套的内部活动套接有触电头,第二导电环外圈另一侧的正面和背面对称安装有支撑转块,通过在壳体内部开设限位滑槽和变阻腔,并且在其内部分别活动安装有电磁铁和导电环等结构提高了气动振动器的振动效果和精度,同时保证了安装的稳定性。(The invention relates to the technical field of pneumatic equipment and discloses a rotary pneumatic vibrator, wherein the middle part inside a shell is provided with an annular cavity, two sides of the annular cavity are respectively communicated with an air inlet head and an air outlet head, a rotor is movably sleeved inside the annular cavity, an electromagnet is movably sleeved at the inner ring of a limiting sliding groove, the side wall of the electromagnet is fixedly connected with an adjusting head extending out of the adjusting groove, the middle part of the inner wall of a rheostatic cavity is fixedly provided with a first conducting ring, the outer ring of a fixed shaft is fixedly sleeved with a conducting sliding ring, the outer ring of the conducting sliding ring is fixedly sleeved with a second conducting ring, the middle part of one side of the outer ring of the second conducting ring is fixedly provided with a conducting sleeve, the inner part of the conducting sleeve is movably sleeved with a contact head, the front side and the back side of the outer ring of the second conducting ring are symmetrically provided with supporting rotating blocks, the limiting sliding groove and the rheostatic cavity are arranged inside the shell, structures such as the electromagnet and the conducting ring are respectively and movably arranged inside the shell, so that the vibration effect and the precision of the pneumatic vibrator are improved, meanwhile, the stability of installation is ensured.)

1. A rotary-type pneumatic vibrator comprising a casing (1), characterized in that: the top of the shell (1) is fixedly provided with a mounting seat (2), one side of the bottom of the shell (1) is fixedly provided with an air inlet head (3), the other side of the bottom of the shell (1) is fixedly provided with an air outlet head (4), the middle part of the interior of the shell (1) is provided with an annular cavity (101) of which two sides are respectively communicated with the air inlet head (3) and the air outlet head (4), the interior of the annular cavity (101) is movably sleeved with a rotor (5), the position of the interior of the shell (1) at the outer ring of the annular cavity (101) is provided with a semicircular limiting sliding groove (102), the front of the shell (1) at the middle position of the limiting sliding groove (102) is provided with an arc-shaped adjusting groove (104), the inner ring of the limiting sliding groove (102) is movably sleeved with an electromagnet (6), the top of the electromagnet (6) is fixedly provided with an adjusting seat (7), the top of the adjusting seat (7) is movably provided with a supporting wheel (8) attached to the outer ring of the limiting sliding groove (102), and the side wall of the electromagnet (6) is fixedly connected with an adjusting head (10) extending out of the adjusting groove (104).

2. A rotary-type pneumatic vibrator according to claim 1, wherein: the variable resistance cavity (103) is formed in the center of the annular cavity (101) inside the shell (1), a first conductive ring (9) is fixedly mounted in the middle of the inner wall of the variable resistance cavity (103), a fixed shaft (11) is fixedly mounted in the middle of the variable resistance cavity (103), a conductive slip ring (12) is fixedly sleeved on the outer ring of the fixed shaft (11), a second conductive ring (13) is fixedly sleeved on the outer ring of the conductive slip ring (12), a conductive sleeve (14) is fixedly mounted in the middle of one side of the outer ring of the second conductive ring (13), a contact head (15) is sleeved on the inner part of the conductive sleeve (14), a spring (16) is fixedly connected between the top of the contact head (15) and the top wall of the conductive sleeve (14), a piston (17) is fixedly sleeved on the outer ring of the contact head (15), and a supporting rotary block (18) is symmetrically mounted on the front side and the back side of the other side of the second conductive ring (13), the inner part of the supporting rotating block (18) is fixedly provided with a magnetic block (19), the outer end part of the supporting rotating block (18) is movably provided with a roller (20), and batteries (21) are symmetrically and fixedly arranged on the front surface and the back surface of the annular cavity (101) in the shell (1).

3. A rotary-type pneumatic vibrator according to claim 2, wherein: the variable-resistance structure is characterized in that a variable-resistance body is installed in the inner wall of the conductive sleeve (14), the cross section of the contact head (15) is T-shaped, the side wall of the sleeved end is in contact with the variable-resistance body on the conductive sleeve (14), the middle of the inner ring of the first conductive ring (9) is convex, downward eccentricity is achieved compared with the center of the outer ring, the bottom of the contact head (15) is in contact with the first conductive ring (9) all the time, and the spring (16) is insulated.

4. A rotary-type pneumatic vibrator according to claim 2, wherein: strong magnetic force is arranged between the rotor (5) and the magnetic block (19), and the magnetic attraction force of the electromagnet (6) on the rotor (5) is equal to the gravity of the rotor (5).

5. A rotary-type pneumatic vibrator according to claim 2, wherein: the battery (21) is sequentially connected with the electromagnet (6), the fixed shaft (11), the conductive slip ring (12), the second conductive ring (13), the conductive sleeve (14), the electric contact head (15) and the first conductive ring (9) in series to form a conductive loop, and the rotor (5) rotates for one circle to drive the resistance change of the resistance changing body in the conductive sleeve (14) to be connected into the circuit to form a chord function relation.

Technical Field

The invention relates to the technical field of pneumatic equipment, in particular to a rotary pneumatic vibrator.

Background

The pneumatic vibrator is a tool for generating vibration by utilizing high-pressure gas discharged by an air compressor, and mainly comprises a linear vibration type and a rotary vibration type, wherein the rotary vibration type is applied to a screen and a hopper to play a role of vibration, the working principle of the pneumatic vibrator is that a rotor pellet in an annular cavity is impacted by air flow, when the rotor pellet moves along the inner wall of the annular cavity, eccentric vibration is generated, and a base of the vibrator is transmitted to an object needing vibration to drive the rotor pellet to vibrate, but the vibrator also has certain defects:

when the rotor is impacted by airflow, the rotor can vibrate under the action of resultant force at different positions in the annular cavity, the conventional pneumatic vibrator is generally vertically or obliquely arranged on an object to be vibrated, then the pneumatic vibrator can be transmitted to the object to be vibrated through the mounting base to realize a vibration effect when in ventilation vibration, the maximum vibration force of the rotor pellet is just in the vertical direction and is ensured at the middle position, when in oblique installation, because the direction of gravity is not in the vertical state with the mounting plane, the direction of the maximum vibration force is influenced by gravity when in vibration, so that the vibration force is not in the direction vertical to the mounting plane, if the vibration force obtained according to the condition of the introduced airflow is inaccurate, and simultaneously, because the influence of gravity during rotation in the annular cavity causes the vibration forces at two sides of the mounting base to be different in size, the vibration difference of the two sides can be caused, so that the base can be loosened under the action of the vibration difference, and the effective safe work of the base is not facilitated.

Disclosure of Invention

In view of the above-mentioned shortcomings of the background art, the present invention provides a rotary pneumatic vibrator, which has the advantages of good vibration effect and high installation stability, and solves the problems of the background art.

The invention provides the following technical scheme: the utility model provides a rotary-type pneumatic vibrator, includes the casing, the top fixed mounting of casing has the mount pad, one side fixed mounting of casing bottom has the head of admitting air, the opposite side fixed mounting of casing bottom has the head of giving vent to anger, the ring chamber of both sides respectively with the head of admitting air and the head of giving vent to anger intercommunication is seted up at the inside middle part of casing, the inside activity in ring chamber has cup jointed the rotor, the inside ring chamber outer lane position that is located of casing has seted up the spacing spout of semicircle form, the casing openly is located spacing spout intermediate position and has seted up curved adjustment tank, the inner circle department activity of spacing spout has cup jointed the electro-magnet, the top fixed mounting of electro-magnet has the regulation seat, the top movable mounting of regulation seat has the supporting wheel with the laminating of spacing spout outer lane, electro-magnet lateral wall fixedly connected with follows the regulation head that the adjustment tank stretches out.

Preferably, a variable resistance cavity is arranged in the shell at the center of the annular cavity, a first conducting ring is fixedly arranged in the middle of the inner wall of the variable resistance cavity, a fixed shaft is fixedly arranged in the middle of the resistance changing cavity, a conductive slip ring is fixedly sleeved on the outer ring of the fixed shaft, the outer ring of the conductive slip ring is fixedly sleeved with a second conductive ring, the middle part of one side of the outer ring of the second conductive ring is fixedly provided with a conductive sleeve, a contact head is movably sleeved in the conductive sleeve, a spring is fixedly connected between the top of the contact head and the top wall of the conductive sleeve, the outer ring of the contact head is fixedly sleeved with a piston, the front surface and the back surface of the other side of the outer ring of the second conducting ring are symmetrically provided with supporting rotating blocks, the inner part of the supporting rotating block is fixedly provided with a magnetic block, the outer end part of the supporting rotating block is movably provided with a roller, and batteries are symmetrically and fixedly arranged on the front surface and the back surface of the annular cavity in the shell.

Preferably, a varistor is installed in the inner wall of the conductive sleeve, the cross section of the electric contact head is T-shaped, the side wall of the sleeve end is in contact with the varistor on the conductive sleeve, the middle of the inner ring of the first conductive ring is raised and is eccentric downwards compared with the center of the outer ring, and the bottom of the electric contact head is in contact with the first conductive ring all the time and is insulated by the spring.

Preferably, strong magnetic force is arranged between the rotor and the magnetic blocks, and the magnetic attraction force of the electromagnet on the rotor is equal to the gravity of the rotor.

Preferably, the battery is connected in series with the electromagnet, the fixed shaft, the conductive slip ring, the second conductive ring, the conductive sleeve, the contact head and the first conductive ring in sequence to form a conductive loop, and the rotor rotates for a circle to drive resistance change of a resistance changing body in the conductive sleeve to be connected into the circuit to form a cord function relationship.

The invention has the following beneficial effects:

compared with the prior art, the limiting chute and the resistance-changing cavity are arranged in the shell, and the electromagnet and the conducting ring and other structures are respectively and movably arranged in the shell, the electromagnet can be adjusted by using the adjusting head to be always kept in the vertical direction, the supporting rotating block arranged in the resistance-changing cavity rotates along with the rotor by using magnetic force, then the second conducting ring, the conducting sleeve, the electric contact head and the like are driven to rotate together, the magnetic size of the electromagnet can be adjusted according to resistance change in the middle ring bulge adjusting circuit on the first conducting ring in the rotating process, the adjusting process and the adjusting relation are carried out along with the rotation of the rotor, the fact that different heights of the rotor can always receive the magnetic force from the electromagnet and are just equal to the gravity of the rotor in the rotating process of the rotor is ensured, and the vibration force can be maximally acted on the vertical installation plane in the rotating process of the rotor, meanwhile, the vibration force which is balanced at the positions which are perpendicular to the two sides of the mounting plane is guaranteed, the mounting seat is guaranteed to stably vibrate, and the fastening performance of the bolt is more durable and stable.

Drawings

FIG. 1 is a general elevational view of the structure of the present invention;

FIG. 2 is a front view in half cross-section of the structure of the present invention;

FIG. 3 is a side, semi-sectional view of the structure of the present invention;

FIG. 4 is an enlarged view taken at A in FIG. 2;

FIG. 5 is an enlarged view of FIG. 3 at B;

FIG. 6 is a diagram showing the relationship between the total resistance and the number of turns of the rotor in the circuit of the present invention.

In the figure: 1. a housing; 101. an annular cavity; 102. a limiting chute; 103. a variable resistance cavity; 104. an adjustment groove; 2. a mounting seat; 3. an air inlet head; 4. an air outlet head; 5. a rotor; 6. an electromagnet; 7. an adjusting seat; 8. a support wheel; 9. a first conductive ring; 10. an adjustment head; 11. a fixed shaft; 12. a conductive slip ring; 13. a second conductive ring; 14. a conductive sleeve; 15. a contact tip; 16. a spring; 17. a piston; 18. supporting the rotating block; 19. a magnetic block; 20. a roller; 21. a battery.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, a rotary pneumatic vibrator comprises a casing 1, a mounting base 2 is fixedly mounted on the top of the casing 1, an air inlet 3 is fixedly mounted on one side of the bottom of the casing 1, an air outlet 4 is fixedly mounted on the other side of the bottom of the casing 1, an annular cavity 101 with two sides respectively communicated with the air inlet 3 and the air outlet 4 is formed in the middle of the inside of the casing 1, a rotor 5 is movably sleeved inside the annular cavity 101, the rotor 5 is driven by air flow to rotate inside the annular cavity 101 and generate impact at the topmost position to generate a large vibrating force, a semicircular limiting sliding groove 102 is formed in the inside of the casing 1 and located at the outer ring position of the annular cavity 101, an arc-shaped adjusting groove 104 is formed in the front of the casing 1 and located at the middle position of the limiting sliding groove 102, a scale value is marked at the top position of the adjusting groove 104 on the outside of the casing 1, and the position of an electromagnet 6 can be adjusted according to the scale value according to the installation angle of the pneumatic vibrator so as to keep the pneumatic vibrator in the vertical direction, an electromagnet 6 is movably sleeved at the inner ring of the limiting sliding groove 102, an adjusting seat 7 is fixedly installed at the top of the electromagnet 6, a supporting wheel 8 attached to the outer ring of the limiting sliding groove 102 is movably installed at the top of the adjusting seat 7, an adjusting head 10 extending out of an adjusting groove 104 is fixedly connected to the side wall of the electromagnet 6, a resistance-variable cavity 103 is formed in the shell 1 and located at the center of the annular cavity 101, a first conducting ring 9 is fixedly installed at the middle of the inner wall of the resistance-variable cavity 103, a fixed shaft 11 is fixedly installed at the middle of the resistance-variable cavity 103, a conducting sliding ring 12 is fixedly sleeved on the outer ring of the fixed shaft 11, a second conducting ring 13 is fixedly sleeved on the outer ring of the conducting sliding ring 12, a conducting sleeve 14 is fixedly installed at the middle of one side of the outer ring of the second conducting ring 13, a contact head 15 is movably sleeved inside the conducting sleeve 14, a spring 16 is fixedly connected between the top of the contact head 15 and the top wall of the conducting sleeve 14, a piston 17 is fixedly sleeved on the outer ring of the contact head 15, the front and the back of the other side of the outer ring of the second conductive ring 13 are symmetrically provided with a supporting rotating block 18, a magnetic block 19 is fixedly arranged inside the supporting rotating block 18, the outer end part of the supporting rotating block 18 is movably provided with a roller 20, batteries 21 are symmetrically and fixedly arranged on the front and the back of the ring cavity 101 inside the shell 1, a power supply is provided through the batteries 21, and the batteries 21 can also be directly connected with electricity to conduct electricity, and the batteries 21 only provide a condition convenient for use in different environments.

The inner wall of the conductive sleeve 14 is provided with a resistance changing body, the cross section of the electric contact head 15 is in a T shape, the side wall of the sleeved end is in contact with the resistance changing body on the conductive sleeve 14, the middle part of the inner ring of the first conductive ring 9 is raised and is eccentric downwards compared with the center of the outer ring, the bottom of the electric contact head 15 is in contact with the first conductive ring 9 all the time, the spring 16 is insulated, the electric contact head 15 is supported against the inner ring of the first conductive ring 9 all the time through the spring 16 in the rotating process of the conductive sleeve 14, therefore, the resistance value of the resistance changing body on the conductive sleeve 14 in the access circuit is changed along with the sliding of the electric contact head 15 in the conductive sleeve 14 in the sliding process, and further, the magnetic force in the electromagnet 6 can be changed according to the height change of the rotor 5.

Wherein, strong magnetic force has between rotor 5 and magnetic path 19, rotor 5 receives the magnetic attraction of electro-magnet 6 and equals the gravity of rotor 5, rotor 5 needs sufficient traction force to drive to support revolving block 18 and rotate along with it when rotating, electro-magnet 6 exerts a magnetic attraction to rotor 5 all the time and this power has just balanced rotor 5's gravity when rotor 5 rotates simultaneously, let rotor 5 receive the power when rotating all concentrate on its line with the centre of a circle like this, the vibration power that produces like this is the biggest near the middle position of ring chamber 101 top, minimum when the middle position of ring chamber 101 bottom, guaranteed that the biggest vibration power is acted on the perpendicular of mounting plane, guarantee simultaneously that the vibration power size in both sides same position department is the same, the atress is more even also higher to the protectiveness of mount pad 2.

Referring to fig. 6, a battery 21 is connected in series with an electromagnet 6, a fixed shaft 11, a conductive slip ring 12, a second conductive ring 13, a conductive sleeve 14, a contact head 15, and a first conductive ring 9 in sequence to form a conductive loop, a rotor 5 rotates one turn to drive resistance change in a resistance change access circuit in the conductive sleeve 14 to be in a cord function relationship, when the rotor 5 rotates along the inner wall of a ring cavity 101 under the drive of wind power, because a large magnetic force relationship exists between a magnetic block 19 and the rotor 5, the magnetic block 19 and the rotor 5 are driven to rotate synchronously, that is, the rotating block 18 and the rotor 5 are supported to rotate synchronously, at this time, the contact head 15 in the conductive sleeve 14 on the other side of the second conductive ring 13 always keeps in contact with the first conductive ring 9 to conduct electricity, and current exists in the circuit, according to the condition that current exists in the circuitIt can be derived that the electromagnet 6 is for the rotor5, and the relationship between the electromagnetic force and the resistance-changing body on the conductive sleeve 14 is a sine function relationship according to the height variation relationship when the rotor 5 rotates, so that the inner ring of the first conductive ring 9 is designed to make the contact head 15 change to adjust the resistance in a sine function manner in the process of extension and retraction.

The working principle is that the mounting base 2 of the pneumatic vibrator is mounted on the bottom surface of an object to be vibrated, then the adjusting head 10 is rotated to adjust the electromagnet 6 to keep the electromagnet in a vertical state according to the mounting inclination angle, then the air inlet head 3 is connected with an exhaust pipe of an air compressor, the air compressor blows air into the annular cavity 101, the air flow blown into the annular cavity 101 drives the rotor 5 to rotate along the inner wall of the annular cavity 101, the supporting rotating block 18 is driven to rotate along the inside of the resistance changing cavity 103 through the magnetic force relation between the rotor 5 and the magnetic block 19 when the rotor 5 rotates, the second conducting ring 13 is also driven to rotate in the rotating process of the supporting rotating block 18, then the conducting sleeve 14 is driven to rotate, when the conducting sleeve 14 rotates, the contact head 15 makes telescopic change in the conducting sleeve 14 due to the convex change in the middle of the first conducting ring 9, and meanwhile, the fixed shaft 11 is connected to one pole of the battery 21 through the conducting slip ring 12, the first conductive ring 9 is also connected to the other pole of the battery 21 through a wire, and the electromagnet 6 is connected in series in the circuit, when the distance from the rotor 5 to the installation surface in the annular cavity 101 is the largest, the vibration force is the smallest, when the rotor 5 rotates to the distance from the installation surface is the smallest, the vibration force is the largest, the electromagnet is vertically acted on the installation seat 2 and is transmitted to the bottom surface of an installation object, when the rotor 5 rotates along the inside of the annular cavity 101, the magnetic force of the electromagnet 6 continuously changes, but the magnetic attraction force borne by the rotor 5 is always equal to the gravity of the rotor 5, the total resistance in the circuit gradually increases in the process that the rotor 5 moves from the low position to the high position, but the magnetic force interval decreases, therefore, the magnetism of the electromagnet 6 is reduced to balance the magnetic force, when the vibration frequency needs to be adjusted, the vibration frequency is controlled by adjusting the air pressure of the air compressor, and the vibration frequency is simple and convenient.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.