Screw air compressor with damping device convenient to install

Abstract

The utility model discloses a screw air compressor with a damping device convenient to install, and belongs to the technical field of air compressors. The air compressor comprises an air compressor unit and a base, a containing groove is formed in the lower portion of the base, a vibration reduction device is detachably connected into the containing groove and comprises a support and a plurality of vibration reduction units, each vibration reduction unit is slidably connected with the support, a first oil cavity is formed between each vibration reduction unit and the support, and an oil tank is fixedly connected to the support. The first oil cavities are communicated with one another, one first oil cavity is communicated with the oil tank through an oil inlet pipe, the oil inlet pipe is communicated with the oil tank through an oil pumping device, a one-way valve is arranged on the oil inlet pipe, one first oil cavity is communicated with the oil tank through an oil return pipe, and the oil return pipe is provided with a first on-off mechanism. According to the vibration reduction unit, the whole air compressor can be conveniently lifted up during installation, the whole air compressor can be conveniently put down during maintenance, and the effect of convenient installation is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of air compressors, in particular to a screw air compressor with a conveniently installed shock absorbing device. Background Art

[0002] Screw compressors are also called screw compressors, which are divided into single screw compressors and twin screw compressors. It is an air compressor that uses the grooves on the spiral rotor to continuously inhale gas from the outside and produce compressed air. The rotor and the motor that drives it will produce large vibrations during rotation. The vibration will damage the air compressor and produce noise, so sometimes a vibration reduction device is installed to reduce the vibration of the air compressor. However, the air compressor is heavy, and the entire air compressor needs to be lifted when installing and removing the vibration reduction device, which is more troublesome. Therefore, a new type of air compressor is needed to solve this problem. Utility Model Content

[0003] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by implementing the utility model. The purpose and other advantages of the utility model can be realized and obtained through the structures specifically pointed out in the description and other drawings of the description.

[0004] The utility model aims to overcome the above-mentioned shortcomings and provide a screw air compressor with a conveniently installed shock absorbing device.

[0005] To achieve the above-mentioned purpose, the technical solution of the utility model is: a screw air compressor with a convenient installation of a shock absorbing device, comprising an air compressor unit and a base, a placement groove is opened under the base, and a shock absorbing device is detachably connected in the placement groove, and the shock absorbing device comprises a support and a plurality of shock absorbing units, each of which is slidably connected to the support, and an oil chamber 1 is provided between each of the shock absorbing units and the support, and the support is fixedly connected to an oil tank, and each of the oil chambers 1 are interconnected, one of the oil chambers 1 is connected to the oil tank through an oil inlet pipe, and the oil inlet pipe is connected to the oil tank through an oil pumping device, and a one-way valve is arranged on the oil inlet pipe, and one of the oil chambers 1 is connected to the oil tank through an oil return pipe 1, and the oil return pipe is provided with an on-off mechanism 1 for controlling the on-off of the oil return pipe 1.

[0006] By adopting the above technical scheme, under normal conditions, the vibration reduction unit is retracted into the support. When installing the vibration reduction device, the vibration reduction device can be inserted into the placement groove as a whole, and the oil pump device can be used to pump the oil in the oil tank into each oil chamber one through the oil inlet pipe. At this time, the oil in the oil chamber one will increase, thereby pushing the vibration reduction unit to slide upward, and then the vibration reduction unit will abut on the base and lift the base, so that the entire air compressor is supported by the vibration reduction unit, so that the vibration generated by the air compressor can be eliminated by the vibration reduction unit, and the one-way valve can prevent the oil pumped into the oil chamber one from flowing back due to the pressure of the air compressor. When the vibration reduction device needs to be disassembled, the on-off mechanism one on the return oil pipe one is opened to make the return oil pipe one conductive. At this time, the oil in the oil chamber one will flow back to the oil tank through the return oil pipe one under the action of the air compressor pressure, and the air compressor will fall to the ground at the same time, and the vibration reduction device can be taken out from the placement groove for repair and maintenance.

[0007] Preferably, each of the vibration damping units includes a sliding cylinder, a piston member and an elastic member 1, the piston member is slidably connected in the sliding cylinder, the elastic member 1 is arranged between the sliding cylinder and the piston member, an oil chamber 2 is formed between the piston member and the sliding cylinder, the piston member is provided with an oil guide channel connected to the oil chamber 2, each of the oil guide channels is connected to each other, one of the oil guide channels is connected to the oil tank through an oil return pipe 2, an on-off mechanism 2 for controlling the on-off of the oil return pipe 2 is arranged on the oil return pipe, and the oil guide channel is connected to the oil return pipe 2 through a hose. The utility model utilizes the elastic force of the elastic member 1 to support the piston member, so that the piston member can not slide under the action of the gravity of the air compressor. When the air compressor generates an impact during operation, the base will push the piston member to overcome the elastic force of the elastic member 1 and slide. At the same time, the oil flows into or out of the oil tank through the oil guide channel, the hose and the oil return pipe 2 in sequence. The energy generated by the impact is consumed by the flow of the oil, thereby achieving the effect of vibration reduction. The oil guide channel and the oil return pipe 2 are connected by a hose that can be deformed and bent, so that the movement of the piston member is not affected.

[0008] Preferably, the oil return pipe 2 is provided with an on-off mechanism 2 for controlling the on-off of the oil return pipe 2. The utility model utilizes the on-off mechanism 2 to disconnect the oil return pipe 2 when the vibration reduction unit is lifted, so that the oil chamber 2 is not connected to the oil tank, so that the piston member does not slide during the lifting process, ensuring that the base can be lifted to the required height.

[0009] Preferably, the on-off mechanism 1 and the on-off mechanism 2 both include a valve body, a valve core and an elastic member 2, the valve body is fixedly connected to the oil return pipe 1 or the oil return pipe 2, a connecting cavity is provided in the valve body, the valve core is slidably connected to the connecting cavity, the elastic member 2 is provided between the valve core and the valve body, the oil return pipe 1 or the oil return pipe 2 is connected to the connecting cavity, and the connecting cavity is cut off from the middle of the oil return pipe 1 or the oil return pipe 2. The utility model utilizes the connecting cavity of the valve body to cut the oil return pipe 1 and the oil return pipe 2 into two sections, when the valve core overcomes the elastic force of the elastic member 2 to slide, and blocks the two entrances of the oil return pipe 1 or the oil return pipe 2 entering the connecting cavity, the valve core can block the oil return pipe 1 or the oil return pipe 2, and after the external force applied to the valve core is removed, the valve core will return to the position of connecting the oil return pipe 1 or the oil return pipe 2 under the action of the elastic force of the elastic member 2.

[0010] Preferably, the two valve cores are fixedly connected with linkage plates, and the support is provided with two sets of fixing mechanisms for fixing the two linkage plates respectively. The utility model uses the linkage plate to push the valve core, and at the same time fixes the linkage plate through the fixing mechanism to fix the valve core, so that the valve core can keep blocking the return oil pipe 1 or the return oil pipe 2.

[0011] Preferably, the fixing mechanism includes a clamping screw and a threaded barrel, the threaded barrel is fixedly connected to the support, the clamping screw passes through the linkage plate, and the clamping screw is rotatably connected to the linkage plate, and the clamping screw is threadedly connected to the threaded barrel. The utility model utilizes the threaded connection between the clamping screw and the threaded barrel, so that the self-locking characteristics of the thread pair can be utilized, and the linkage plate is driven by rotating the clamping screw to drive the valve core to overcome the sliding of the second elastic member, and at the same time, the valve core will not be pushed back by the second elastic member after the external force is removed.

[0012] Preferably, the base is provided with a window for operating the compression screw. The utility model can conveniently operate the compression screw by utilizing the window.

[0013] Preferably, a connecting plate is provided on a plurality of the piston members, the connecting plate is fixedly connected to each of the piston members, and holes for inserting bolts are provided on the connecting plate and the base. The utility model can use the connecting plate to fix the piston member on the base, so that the piston member and the base will not slide relative to each other due to vibration.

[0014] Preferably, the oil pumping device is an electric oil pump.

[0015] In summary, the beneficial effects of the utility model are:

[0016] 1. By using the oil pump device, the oil return pipe and the on-off mechanism, the increase and decrease of the oil in the oil chamber can be controlled, thereby driving the vibration reduction unit to slide up and down, so that the vibration reduction unit can easily lift the entire air compressor during installation, and can be easily put down during maintenance, thereby achieving the effect of convenient installation.

[0017] 2. The sliding of the piston is used to push the oil in the second oil chamber to flow in the oil guide channel, the hose and the second oil return pipe. The energy of the vibration is consumed by the flow of the oil to achieve a vibration reduction effect.

[0018] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure.

[0019] Undoubtedly, these and other objects of the present invention will become more apparent after the following detailed description of the preferred embodiments described with reference to various figures and drawings.

[0020] In order to make the above and other purposes, features and advantages of the present invention more obvious and understandable, one or several preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0022] In the drawings, the same reference numerals are used for the same components and the drawings are schematic and not necessarily drawn to scale.

[0023] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only one or several embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on such drawings without paying creative work.

[0024] Figure 1 This is a schematic diagram of the air compressor structure;

[0025] Figure 2 The longitudinal section structure is shown in Figure 2. Figure 1 ;

[0026] Figure 3 Schematic diagram of the transverse section structure Figure 1 ;

[0027] Figure 4 Schematic diagram of the transverse section structure Figure 2 ;

[0028] Figure 5 The longitudinal section structure is shown in Figure 2. Figure 2 .

[0029] Explanation of main figure marks: 1. air compressor unit; 2. base; 3. placement groove; 4. support; 5. oil chamber 1; 6. oil tank; 7. oil inlet pipe; 8. oil pumping device; 9. one-way valve; 10. sliding cylinder; 11. piston member; 12. elastic member 1; 13. oil chamber 2; 14. oil guide channel; 15. oil return pipe 2; 16. hose; 17. valve body; 18. valve core; 19. elastic member 2; 20. connecting chamber; 21. linkage plate; 22. pressing screw; 23. threaded cylinder; 24. window; 25. connecting plate; 26. perforation; 27. on-off mechanism 1; 28. on-off mechanism 2; 29. ​​oil return pipe 1. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with specific implementation methods. It should be understood that the specific implementation methods described here are only used to explain the utility model, but not to limit the utility model.

[0031] In addition, in the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0032] In the present utility model, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. However, if it is indicated as a direct connection, it means that the two connected bodies are not connected through a transition structure, but are connected to form a whole through a connecting structure. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0033] In the present utility model, unless otherwise clearly specified and limited, the first feature "above" or "below" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" 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 may be combined in an appropriate manner in any one or more embodiments or examples.

[0034] like Figure 1-5 As shown, a screw air compressor with a convenient installation of a shock absorbing device includes an air compressor unit 1 and a base 2, a placement groove 3 is provided below the base 2, a shock absorbing device is detachably connected in the placement groove 3, the shock absorbing device includes a support 4 and a plurality of shock absorbing units, each of which is slidably connected to the support 4, an oil chamber 5 is provided between each shock absorbing unit and the support 4, the support 4 is fixedly connected to an oil tank 6, each of the oil chambers 5 are interconnected, one of the oil chambers 5 is connected to the oil tank 6 through an oil inlet pipe 7, the oil inlet pipe 7 is connected to the oil tank 6 through an oil pumping device 8, a one-way valve 9 is provided on the oil inlet pipe 7, one of the oil chambers 5 is connected to the oil tank 6 through an oil return pipe 29, and the oil return pipe is provided with an on-off mechanism 27 for controlling the on-off of the oil return pipe 29.

[0035] By adopting the above technical scheme, under normal conditions, the vibration reduction unit is retracted into the support 4. When installing the vibration reduction device, the vibration reduction device can be inserted into the placement groove 3 as a whole. The oil pump device 8 can be used to pump the oil in the oil tank 6 into each oil chamber 5 through the oil inlet pipe 7. At this time, the oil in the oil chamber 5 will increase, thereby pushing the vibration reduction unit to slide upward. Then the vibration reduction unit will abut on the base 2 and lift the base 2, so that the entire air compressor is supported by the vibration reduction unit, so that the vibration generated by the air compressor can be eliminated by the vibration reduction unit. The one-way valve 9 can prevent the oil pumped into the oil chamber 5 from flowing back due to the pressure of the air compressor. When the vibration reduction device needs to be disassembled, the on-off mechanism 27 on the return oil pipe 29 is opened to make the return oil pipe 29 conductive. At this time, the oil in the oil chamber 5 will flow back to the oil tank 6 through the return oil pipe 29 under the action of the air compressor pressure. At the same time, the air compressor falls to the ground, and the vibration reduction device can be taken out from the placement groove 3 for repair and maintenance.

[0036] Each vibration reduction unit includes a sliding cylinder 10, a piston member 11 and an elastic member 12. The piston member 11 is slidably connected in the sliding cylinder 10. The elastic member 12 is arranged between the sliding cylinder 10 and the piston member 11. An oil chamber 13 is formed between the piston member 11 and the sliding cylinder 10. The piston member 11 is provided with an oil guide channel 14 connected to the oil chamber 13. Each oil guide channel 14 is connected to each other. One of the oil guide channels 14 is connected to the oil tank 6 through an oil return pipe 15. The oil return pipe is provided with an on-off mechanism 28 for controlling the on-off of the oil return pipe 15. The oil guide channel 14 is connected to the oil return pipe 15 through a hose 16. The piston 11 is supported by the elastic force of the elastic member 12 so that the piston 11 does not slide under the action of the gravity of the air compressor. When the air compressor generates an impact, the base 2 pushes the piston 11 to overcome the elastic force of the elastic member 12 and slide, and at the same time, the oil flows into or out of the oil tank 6 through the oil guide channel 14, the hose 16 and the oil return pipe 15 in sequence, and the energy generated by the impact is consumed by the flow of the oil, thereby achieving a vibration reduction effect. The oil guide channel 14 and the oil return pipe 15 are connected by a deformable and bendable hose 16, so that the movement of the piston 11 is not affected.

[0037] The oil return pipe 15 is provided with an on-off mechanism 28 for controlling the on-off of the oil return pipe 15. The on-off mechanism 28 can be used to disconnect the oil return pipe 15 when the vibration reduction unit is lifted, so that the oil chamber 13 is not connected to the oil tank 6, so that the piston member 11 does not slide during the lifting process, ensuring that the base 2 can be lifted to the required height.

[0038] The on-off mechanism 1 27 and the on-off mechanism 2 28 both include a valve body 17, a valve core 18 and an elastic member 2 19. The valve body 17 is fixedly connected to the oil return pipe 1 29 or the oil return pipe 2 15. A connecting chamber 20 is provided in the valve body 17. The valve core 18 is slidably connected to the connecting chamber 20. The elastic member 2 19 is provided between the valve core 18 and the valve body 17. The oil return pipe 1 29 or the oil return pipe 2 15 is connected to the connecting chamber 20. The connecting chamber 20 is cut off from the middle of the oil return pipe 1 29 or the oil return pipe 2 15. The connecting cavity 20 of the valve body 17 is used to cut the oil return pipe 1 29 and the oil return pipe 2 15 into two sections. When the valve core 18 overcomes the elastic force of the elastic member 2 19 to slide and blocks the two entrances of the oil return pipe 1 29 or the oil return pipe 2 15 entering the connecting cavity 20, the valve core 18 can block the oil return pipe 1 29 or the oil return pipe 2 15. After the external force applied to the valve core 18 is removed, the valve core 18 will return to the position where the oil return pipe 1 29 or the oil return pipe 2 15 is connected under the action of the elastic force of the elastic member 2 19.

[0039] The two valve cores 18 are both fixedly connected with linkage plates 21, and the support 4 is provided with two sets of fixing mechanisms for fixing the two linkage plates 21. The linkage plates 21 are used to push the valve core 18, and the linkage plates 21 are fixed by the fixing mechanisms to fix the valve core 18, so that the valve core 18 can keep blocking the oil return pipe 1 29 or the oil return pipe 2 15.

[0040] The fixing mechanism includes a clamping screw 22 and a threaded barrel 23. The threaded barrel 23 is fixedly connected to the support 4. The clamping screw 22 penetrates the linkage plate 21, and the clamping screw 22 is rotatably connected to the linkage plate 21, and the clamping screw 22 is threadedly connected to the threaded barrel 23. By utilizing the threaded connection between the clamping screw 22 and the threaded barrel 23, the self-locking property of the thread pair can be utilized, and the linkage plate 21 can be pushed by rotating the clamping screw 22 to drive the valve core 18 to overcome the sliding of the elastic member 19, and at the same time, the valve core 18 will not be pushed back by the elastic member 19 after the external force is removed.

[0041] The base 2 is provided with a window 24 for operating the pressing screw 22. The pressing screw 22 can be operated conveniently by utilizing the window 24.

[0042] A connecting plate 25 is provided on the plurality of piston members 11, and the connecting plate 25 is fixedly connected to each piston member 11. A through hole 26 for inserting a bolt is provided on the connecting plate 25 and the base 2. The connecting plate 25 can be used to fix the piston member 11 on the base 2, so that the piston member 11 and the base 2 will not slide relative to each other due to vibration.

[0043] The oil pump device 8 is an electric oil pump.

[0044] It should be noted that many specific details are set forth in the above description to facilitate a full understanding of the present invention. However, the present invention can also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

Claims

1. A screw air compressor with a conveniently installed shock-absorbing device, comprising an air compressor unit (1) and a base (2), characterized in that: A placement groove (3) is provided below the base (2), and a vibration reduction device is detachably connected in the placement groove (3). The vibration reduction device comprises a support (4) and a plurality of vibration reduction units. Each of the vibration reduction units is slidably connected to the support (4). An oil chamber (5) is provided between each of the vibration reduction units and the support (4). The support (4) is fixedly connected to an oil tank (6). Each of the oil chambers (5) is interconnected. One of the oil chambers (5) is connected to the oil tank (6) via an oil inlet pipe (7). The oil inlet pipe (7) is connected to the oil tank (6) via an oil pump device (8). A one-way valve (9) is provided on the oil inlet pipe (7). One of the oil chambers (5) is connected to the oil tank (6) via an oil return pipe (29). The oil return pipe is provided with an on-off mechanism (27) for controlling the on-off of the oil return pipe (29).

2. The screw air compressor with a conveniently installed shock absorbing device according to claim 1, characterized in that: Each of the vibration reduction units comprises a sliding cylinder (10), a piston member (11) and an elastic member (12); the piston member (11) is slidably connected in the sliding cylinder (10); the elastic member (12) is arranged between the sliding cylinder (10) and the piston member (11); an oil chamber (13) is formed between the piston member (11) and the sliding cylinder (10); the piston member (11) is provided with an oil guide channel (14) connected to the oil chamber (13); each of the oil guide channels (14) is connected to each other; one of the oil guide channels (14) is connected to the oil tank (6) through an oil return pipe (15); an on-off mechanism (28) for controlling the on-off of the oil return pipe (15) is arranged on the oil return pipe; the oil guide channel (14) is connected to the oil return pipe (15) through a hose (16).

3. The screw air compressor with a conveniently installed shock absorbing device according to claim 2, characterized in that: The second oil return pipe (15) is provided with a second on-off mechanism (28) for controlling the on-off of the second oil return pipe (15).

4. The screw air compressor with a conveniently installed shock absorbing device according to claim 3, characterized in that: The on-off mechanism 1 (27) and the on-off mechanism 2 (28) both comprise a valve body (17), a valve core (18) and an elastic member 2 (19); the valve body (17) is fixedly connected to the oil return pipe 1 (29) or the oil return pipe 2 (15); a connecting cavity (20) is provided in the valve body (17); the valve core (18) is slidably connected to the connecting cavity (20); the elastic member 2 (19) is provided between the valve core (18) and the valve body (17); the oil return pipe 1 (29) or the oil return pipe 2 (15) is connected to the connecting cavity (20); and the connecting cavity (20) is cut off from the middle of the oil return pipe 1 (29) or the oil return pipe 2 (15).

5. The screw air compressor with a conveniently installed shock absorbing device according to claim 4, characterized in that: The two valve cores (18) are both fixedly connected with a linkage plate (21), and the support (4) is provided with two sets of fixing mechanisms respectively used to fix the two linkage plates (21).

6. The screw air compressor with a conveniently installed shock absorbing device according to claim 5, characterized in that: The fixing mechanism comprises a clamping screw (22) and a threaded barrel (23); the threaded barrel (23) is fixedly connected to the support (4); the clamping screw (22) passes through the linkage plate (21); the clamping screw (22) is rotationally connected to the linkage plate (21); and the clamping screw (22) is threadedly connected to the threaded barrel (23).

7. The screw air compressor with a conveniently installed shock absorbing device according to claim 6, characterized in that: The base (2) is provided with a window (24) for operating the pressing screw (22).

8. The screw air compressor with a conveniently installed shock absorbing device according to claim 2, characterized in that: A connecting plate (25) is provided on a plurality of the piston members (11), the connecting plate (25) being fixedly connected to each of the piston members (11), and a through hole (26) for inserting a bolt is provided on the connecting plate (25) and the base (2).

9. The screw air compressor with a conveniently installed shock absorbing device according to claim 1, characterized in that: The oil pump device (8) is an electric oil pump.

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