Middle-high pressure screw air compressor

Abstract

The utility model discloses a middle-high pressure screw air compressor, and belongs to the field of air compressors. Comprising a base, and an air storage tank, a fixing frame erected on the air storage tank and a screw air compressor body installed on the fixing frame are installed at the top of the base; the moving wheels are mounted at four corners of the bottom of the base and used for pushing the base to carry and move; the fixing base is horizontally fixed to the bottom of the base, a supporting plate is horizontally arranged below the fixing base, and a driving mechanism used for driving the supporting plate to move downwards is arranged on the fixing base and used for lifting the base. The screw air compressor base has the lifting function of lifting the base, the air storage tank and the screw air compressor body, can be stably placed on the ground, also has the vibration isolation effect and reduces abrasion.

Description

Technical Field

[0001] The present application relates to the field of air compressors, and more specifically, to a medium- and high-pressure screw air compressor. Background Art

[0002] Medium and high pressure screw air compressor is an air compression equipment based on screw compressor technology. Through the rotation of the yin and yang rotors, the air is sucked in, compressed and discharged. It has many advantages such as high pressure, energy saving and consumption reduction, high reliability, strong adaptability, simple maintenance, easy installation and good safety.

[0003] Since the medium and high pressure screw air compressor equipment is heavier as a whole, in order to facilitate the transportation and movement of the medium and high pressure screw air compressor, moving wheels are usually installed at the bottom of the frame of the medium and high pressure screw air compressor. However, it is not difficult to find that in traditional medium and high pressure screw air compressors, the locking structure of the moving wheel is usually used for positioning. However, in this positioning method, the moving wheel will always be used to support the medium and high pressure screw air compressor, and the medium and high pressure screw air compressor will generate certain vibrations during operation, which will accelerate the wear of the moving wheel. After the locking structure of the moving wheel is damaged due to vibration, the air compressor will move, posing a safety hazard. For this reason, the present application proposes a medium and high pressure screw air compressor. Utility Model Content

[0004] The content of this application is used to introduce concepts in a brief form, which will be described in detail in the detailed implementation section below. The content of this application is not intended to identify the key features or essential features of the technical solution claimed for protection, nor is it intended to limit the scope of the technical solution claimed for protection.

[0005] In order to solve the technical problems mentioned in the above background technology part, some embodiments of the present application provide a medium- and high-pressure screw air compressor, including a base, a gas storage tank installed on the top of the base, a fixed frame mounted on the gas storage tank, and a screw air compressor body installed on the fixed frame; movable wheels installed at the four corners of the bottom of the base, for pushing the base to be transported and moved; a fixed base horizontally fixed to the bottom of the base, a support plate horizontally arranged below the fixed base, and a driving mechanism for driving the support plate to move downward is arranged on the fixed base, so as to lift the base.

[0006] Furthermore, the driving mechanism includes an assembly cavity opened at the bottom of the fixed seat, a bidirectional screw rod rotatably installed in the assembly cavity, a pair of sliders symmetrically threadedly sleeved on the bidirectional screw rod, and a driving motor installed at the end of the fixed seat for driving the bidirectional screw rod to rotate, and a second support arm is hinged between the pair of sliders and the support plate.

[0007] Furthermore, the sliding block is slidably fitted with the top wall inside the assembly cavity, and the two second supporting arms are respectively hinged to the two ends of the supporting plate.

[0008] Furthermore, a rubber pad is bonded to the lower surface of the support plate, and there are auxiliary support members on the base. The auxiliary support members are provided in multiple groups, and the multiple groups of auxiliary support members are distributed on both sides of the fixing seat for auxiliary support of the base.

[0009] Furthermore, the auxiliary support member includes a sleeve block fixed on the base, a screw column vertically threaded through the sleeve block, a rotating handle fixed on the top of the screw column, and a support plate rotatably installed on the bottom of the screw column. The screw column movably passes through the base, and the support plate is located below the base.

[0010] Furthermore, first support arms are vertically fixed at four corners of the bottom of the base, the moving wheel is installed at the bottom of the first support arm, and the length of the first support arm is greater than the sum of the heights of the fixed seat and the support plate.

[0011] Furthermore, a rubber block is arranged between the top of the fixing seat and the base, and a pressure relief groove is opened in the rubber block. The pressure relief groove is distributed along the length direction of the rubber block, and the pressure relief groove runs through the end wall of the rubber block. A plurality of pressure relief holes are horizontally opened on the side wall of the rubber block, and the pressure relief holes are connected to the pressure relief groove.

[0012] Furthermore, a stopper is provided on the movable sleeve of the bidirectional screw rod, the stopper is fixed on the inner wall of the assembly cavity, and the stopper is located near the hinge between the second support arm and the support plate.

[0013] The beneficial effects of this application are:

[0014] Through the fixed seat and the support plate arranged at the bottom of the base, under the drive of the driving mechanism, when the support plate is driven close to the fixed seat, the support plate is away from the ground, and the base can be pushed to move by the moving wheels, which is convenient for the transportation and movement of the gas tank and the screw air compressor body. When the support plate is driven away from the fixed seat and abuts against the ground, the base, the gas tank and the screw air compressor body can be lifted, and the moving wheels are separated from the ground. With the cooperation of the auxiliary support members, the base can be positioned on the ground, so that the base can be placed stably on the ground for the convenience of using the equipment. Compared with the traditional method of fixing the moving wheel with a locking structure, the stability performance is improved, which is beneficial to the operation of the air compressor.

[0015] The rubber block arranged between the fixed seat and the base, in combination with the pressure relief grooves and pressure relief holes on the rubber block, has the effect of absorbing energy and relieving pressure, which can effectively alleviate the vibration generated during the operation of the screw air compressor body from being transmitted toward the fixed seat, thereby achieving the purpose of vibration isolation and reducing equipment wear. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting a part of this application are used to provide a further understanding of this application, so that other features, purposes and advantages of this application become more obvious. The illustrative embodiment drawings and their descriptions of this application are used to explain this application and do not constitute an improper limitation on this application.

[0017] In addition, throughout the drawings, the same or similar reference numerals represent the same or similar elements. It should be understood that the drawings are schematic and that the components and elements are not necessarily drawn to scale.

[0018] In the attached picture:

[0019] Figure 1 This is a schematic diagram of the overall structure of this application;

[0020] Figure 2 This is a schematic diagram of the structure of the fixing seat of this application;

[0021] Figure 3 This is a schematic diagram of the structure of the driving mechanism of this application;

[0022] Figure 4 This is a schematic diagram of the structure of the auxiliary support member of this application.

[0023] Reference numerals:

[0024] 1. Base; 2. Air storage tank; 3. Fixed frame; 4. Screw air compressor body; 5. First support arm; 6. Moving wheel; 7. Fixed seat; 8. Auxiliary support member; 9. Support plate; 10. Driving mechanism; 11. Rubber pad; 12. Rubber block; 13. Pressure relief groove; 14. Pressure relief hole; 15. Slider; 16. Second support arm; 17. Bidirectional screw; 18. Block; 19. Driving motor; 20. Assembly cavity; 21. Bushing; 22. Screw column; 23. Support disk; 24. Rotating handle. DETAILED DESCRIPTION

[0025] Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be construed as being limited to the embodiments set forth herein. On the contrary, these embodiments are provided to provide a more thorough and complete understanding of the present disclosure. It should be understood that the drawings and embodiments of the present disclosure are only for exemplary purposes and are not intended to limit the scope of protection of the present disclosure.

[0026] It should also be noted that, for ease of description, only the parts related to the invention are shown in the drawings. In the absence of conflict, the embodiments and features in the embodiments of the present disclosure can be combined with each other.

[0027] It should be noted that the concepts such as "first" and "second" mentioned in the present disclosure are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0028] It should be noted that the modifications of "one" and "plurality" mentioned in the present disclosure are illustrative rather than restrictive, and those skilled in the art should understand that unless otherwise clearly indicated in the context, it should be understood as "one or more".

[0029] The present disclosure will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0030] Reference Figure 1-Figure 4 As shown, a medium- and high-pressure screw air compressor comprises a base 1, a gas storage tank 2 is mounted on the top of the base 1, a fixing frame 3 mounted on the gas storage tank 2, and a screw air compressor body 4 mounted on the fixing frame 3; moving wheels 6 are installed at the four corners of the bottom of the base 1, which are used to push the base 1 for transportation and movement; a fixing seat 7 is horizontally fixed to the bottom of the base 1, a support plate 9 is horizontally arranged below the fixing seat 7, and a driving mechanism 10 for driving the support plate 9 to move downward is arranged on the fixing seat 7, which is used to lift the base 1. Through this structural method, when the support plate 9 is driven close to the fixing seat 7, the fixing seat 7 is provided with a driving mechanism 10 for driving the support plate 9 to move downward. When the fixed seat 7 is in contact with the ground, the support plate 9 is away from the ground, and the base 1 can be pushed to move by the moving wheels 6, which is convenient for the transportation and movement of the gas tank 2 and the screw air compressor body 4. When the support plate 9 is driven away from the fixed seat 7 and abuts against the ground, the base 1, the gas tank 2 and the screw air compressor body 4 can be lifted, and the moving wheels 6 are separated from the ground, and the base 1 can be positioned on the ground, so that the base 1 can be placed stably on the ground for the use of the equipment. Compared with the traditional method of fixing the moving wheels 6 with their own locking structure, the stability performance is improved, which is beneficial to the operation of the air compressor.

[0031] In this embodiment, a first support arm 5 is vertically fixed at the four corners of the bottom of the base 1, and a moving wheel 6 is installed at the bottom end of the first support arm 5. The length of the first support arm 5 is greater than the sum of the heights of the fixed seat 7 and the support plate 9, so that after the support plate 9 is close to the fixed seat 7, the moving wheel 6 can support the base 1, ensuring that the base 1 can be pushed and moved by the moving wheel 6.

[0032] As a preferred implementation of this embodiment, the driving mechanism 10 includes an assembly cavity 20 opened at the bottom of the fixed seat 7, a bidirectional screw 17 rotatably installed in the assembly cavity 20, a pair of sliders 15 symmetrically threadedly sleeved on the bidirectional screw 17, and a driving motor 19 installed at the end of the fixed seat 7 for driving the bidirectional screw 17 to rotate. A second support arm 16 is hinged between the pair of sliders 15 and the support plate 9, wherein the sliders 15 are slidably fitted with the top wall inside the assembly cavity 20, and the two second support arms 16 are respectively hinged at the two ends of the support plate 9. Through this structural method, the driving motor is started 19 drives the bidirectional screw rod 17 to rotate, driving a pair of sliders 15 to move closer to each other, and using the second support arm 16 to drive the support plate 9 to move up and close to the fixed seat 7. At this time, the support plate 9 is away from the ground, and the moving wheel 6 can be used to move the base 1. The drive motor 19 is started to drive the bidirectional screw rod 17 to rotate in the opposite direction, driving a pair of sliders 15 away from each other, forcing the second support arm 16 to be in a vertical state. At this time, the support plate 9 is pushed away from the fixed seat 7 by the second support arm 16 and abuts against the ground, lifting the base 1, the gas storage tank 2 and the screw air compressor body 4, and the moving wheel 6 is separated from the ground for positioning and supporting the base 1.

[0033] In this embodiment, a stopper 18 is provided on the movable sleeve of the bidirectional screw rod 17, and the stopper 18 is fixed on the inner wall of the assembly cavity 20, and the stopper 18 is located near the hinge between the second support arm 16 and the support plate 9. The stopper 18 limits the position of the slider 15, so that the second support arm 16 can remain in a vertical state to support the fixed seat 7 and the base 1.

[0034] In a further embodiment, a rubber pad 11 is bonded to the lower surface of the support plate 9 to increase the friction between the support plate 9 and the ground; there are auxiliary support members 8 on the base 1, and the auxiliary support members 8 are provided in multiple groups, and the multiple groups of auxiliary support members 8 are distributed on both sides of the fixed seat 7 to assist in supporting the base 1. Specifically, the auxiliary support members 8 include a sleeve block 21 fixed on the base 1, a screw column 22 with a vertical thread passing through the sleeve block 21, a rotating handle 24 fixed to the top of the screw column 22, and a support plate 23 rotatably installed at the bottom end of the screw column 22. The screw column 22 movably passes through the base 1, and the support plate 23 is located below the base 1. After the fixed seat 7 and the base 1 are lifted by the support plate 9 and the second support arm 16, the screw column 22 is twisted downward to push the support plate 23 to abut against the ground, which can assist in supporting the base 1 and make the base 1 stably placed on the ground.

[0035] In a further embodiment, a rubber block 12 is arranged between the top of the fixing seat 7 and the base 1, and a pressure relief groove 13 is opened in the rubber block 12. The pressure relief groove 13 is distributed along the length direction of the rubber block 12, and the pressure relief groove 13 passes through the end wall of the rubber block 12. A plurality of pressure relief holes 14 are horizontally opened on the side wall of the rubber block 12, and the pressure relief holes 14 are connected to the pressure relief groove 13. Through this structural method, the rubber block 12 has an energy absorption and pressure relief effect, which can effectively alleviate the vibration generated during the operation of the screw air compressor body 4 from being transmitted toward the fixing seat 7, thereby reducing the wear of the equipment.

[0036] When in use, the driving motor 19 is started to drive the bidirectional screw rod 17 to rotate, driving the pair of sliders 15 to move closer to each other, and the second supporting arm 16 is used to drive the supporting plate 9 to move up and close to the fixing seat 7. At this time, the supporting plate 9 is away from the ground, and the base 1 can be pushed to move by the moving wheel 6, which can facilitate the transportation and movement of the gas storage tank 2 and the screw air compressor body 4. By starting the driving motor 19 to drive the bidirectional screw rod 17 to rotate in the opposite direction, the pair of sliders 15 are driven to move away from each other. Under the limit of the stopper 18, the second supporting arm 16 is forced to be in a vertical state. At this time, the supporting plate 9 is pushed away from the fixing seat 7 and the ground by the second supporting arm 16. The base 1 is abutted against the air tank 2 and the screw air compressor body 4, and the moving wheel 6 is lifted off the ground. Then, the screw column 22 is screwed downward by using the rotating handle 24 to push the support plate 23 into contact with the ground, so that the base 1 can be placed stably on the ground for the convenience of using the equipment. In addition, the rubber block 12 arranged between the fixed seat 7 and the base 1, in conjunction with the pressure relief groove 13 and the pressure relief hole 14 opened on the rubber block 12, has the effect of absorbing energy and relieving pressure, and can effectively alleviate the vibration generated during the operation of the screw air compressor body 4 from being transmitted toward the fixed seat 7, thereby achieving the purpose of vibration isolation and reducing the wear of the equipment.

[0037] The above descriptions are only some preferred embodiments of the present disclosure and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the embodiments of the present disclosure is not limited to the technical solutions formed by a specific combination of the above-mentioned technical features, but should also cover other technical solutions formed by any combination of the above-mentioned technical features or their equivalent features without departing from the above-mentioned inventive concept. For example, the above-mentioned features are replaced with the technical features with similar functions disclosed in the embodiments of the present disclosure (but not limited to) and the technical solutions formed.

Claims

1. A medium and high pressure screw air compressor, characterized in that: include: A base (1), wherein a gas storage tank (2), a fixing frame (3) mounted on the gas storage tank (2), and a screw air compressor body (4) mounted on the fixing frame (3) are mounted on the top of the base (1); Moving wheels (6) installed at the four corners of the bottom of the base (1) are used to push the base (1) for transportation and movement; A fixing seat (7) is horizontally fixed to the bottom of the base (1), a support plate (9) is horizontally arranged below the fixing seat (7), and a driving mechanism (10) is arranged on the fixing seat (7) for driving the support plate (9) to move downward, so as to lift the base (1).

2. The medium and high pressure screw air compressor according to claim 1, characterized in that: The driving mechanism (10) comprises an assembly cavity (20) opened at the bottom of the fixing seat (7), a bidirectional screw rod (17) rotatably mounted in the assembly cavity (20), a pair of sliders (15) symmetrically threadedly sleeved on the bidirectional screw rod (17), and a driving motor (19) mounted at the end of the fixing seat (7) for driving the bidirectional screw rod (17) to rotate, and a second support arm (16) is hinged between the pair of sliders (15) and the support plate (9).

3. The medium and high pressure screw air compressor according to claim 2, characterized in that: The sliding block (15) is slidably fitted with the inner top wall of the assembly cavity (20), and the two second support arms (16) are respectively hinged to the two ends of the support plate (9).

4. The medium and high pressure screw air compressor according to claim 1, characterized in that: A rubber pad (11) is bonded to the lower surface of the support plate (9), and an auxiliary support member (8) is provided on the base (1). The auxiliary support member (8) is provided in multiple groups, and the multiple groups of auxiliary support members (8) are distributed on both sides of the fixing base (7) for auxiliary support of the base (1).

5. The medium and high pressure screw air compressor according to claim 4, characterized in that: The auxiliary support member (8) comprises a sleeve block (21) fixed on the base (1), a threaded rod (22) vertically threadedly penetrated on the sleeve block (21), a rotating handle (24) fixed on the top end of the threaded rod (22), and a support plate (23) rotatably mounted on the bottom end of the threaded rod (22); the threaded rod (22) movably penetrates the base (1), and the support plate (23) is located below the base (1).

6. The medium and high pressure screw air compressor according to claim 1, characterized in that: First support arms (5) are vertically fixed at the four corners of the bottom of the base (1), the moving wheel (6) is installed at the bottom end of the first support arm (5), and the length of the first support arm (5) is greater than the sum of the heights of the fixed seat (7) and the support plate (9).

7. The medium and high pressure screw air compressor according to claim 1, characterized in that: A rubber block (12) is arranged between the top of the fixing seat (7) and the base (1), and a pressure relief groove (13) is provided in the rubber block (12). The pressure relief groove (13) is distributed along the length direction of the rubber block (12), and the pressure relief groove (13) passes through the end wall of the rubber block (12). A plurality of pressure relief holes (14) are horizontally provided on the side wall of the rubber block (12), and the pressure relief holes (14) are connected to the pressure relief groove (13).

8. The medium and high pressure screw air compressor according to claim 2, characterized in that: A stopper (18) is movably sleeved on the bidirectional screw rod (17), the stopper (18) is fixed on the inner wall of the assembly cavity (20), and the stopper (18) is located near the hinge between the second support arm (16) and the support plate (9).

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