Horizontal compressor shock absorber mounting structure and railway vehicle air conditioning unit

Abstract

The utility model relates to a horizontal compressor shock absorber installation structure and a railway vehicle air conditioning unit, which comprise a shock absorber, an installation rib, a bolt and a flange nut, the shock absorber is sleeved on the bolt, the installation rib is welded on a chassis and an installation beam of the air conditioning unit, a bolt hole is arranged on the installation rib, and the flange nut is sleeved on the bolt. The flange nuts are welded to the lower surfaces of the installation ribs, and the bolts penetrate through the shock absorber and the bolt holes from top to bottom to be in threaded connection with the flange nuts. According to the utility model, the operation of replacing the shock absorber of the compressor is simple and convenient, the maintainability is improved, and under the condition that a refrigerating system is not damaged, the quick replacement of the shock absorber of the compressor is realized, the waste of a refrigerant is reduced, the maintenance workload is also reduced, the maintenance efficiency is improved, and the maintenance cost is reduced.

Description

Technical Field

[0001] The utility model relates to the field of air conditioning equipment technology, in particular to a horizontal compressor damper mounting structure and a rail vehicle air conditioning unit. Background Art

[0002] Horizontal compressors are used in air-conditioning units of some rail vehicles. Existing horizontal compressors are generally fixed to the chassis of the air-conditioning unit through three or four mounting feet. In order to achieve the function of vibration reduction, a vibration damper is installed at each mounting foot to fix it to the chassis.

[0003] The existing compressor shock absorber fixing structure is to install a bolt from bottom to top, and the bolt head is welded to the mounting plate. The shock absorber sleeve is located on the bolt above the mounting plate, and finally a nut is tightened on the top of the bolt to achieve fixed installation of the shock absorber.

[0004] Since the shock absorber needs to have a certain height to have a vibration reduction effect on the compressor, the bolts used to fix the compressor shock absorber are relatively long, about 60mm, to ensure that at least 3 threads can leak out after the bolts and nuts are tightened.

[0005] Based on the operating environment of rail air conditioning units, the compressor damper has a service life of 5 years, while the compressor and copper piping have a service life of 15 years. During the unit's 5-year overhaul, the compressor damper must be replaced separately. This requires draining the refrigerant, welding the compressor's intake and exhaust pipes, and lifting the compressor to a height exceeding the bolt length (approximately 60mm) before installing a new damper. The compressor must then be reinstalled, the intake and exhaust pipes welded, and re-vacuumed and recharged with refrigerant. This entire damper replacement process results in refrigerant consumption and waste, as well as significant maintenance workload and man-hours. Utility Model Content

[0006] The main technical problem solved by the utility model is to provide a horizontal compressor vibration damper mounting structure that can realize the rapid replacement of the compressor vibration damper without damaging the refrigeration system, reduce refrigerant waste and save maintenance time, and at the same time provide a rail vehicle air-conditioning unit using the horizontal compressor vibration damper mounting structure.

[0007] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0008] A horizontal compressor vibration damper mounting structure includes a vibration damper, a mounting rib, a bolt, and a flange nut. The vibration damper is sleeved on the bolt. The mounting rib is welded to the chassis and mounting beam of the air conditioning unit. Bolt holes are opened on the mounting rib. The flange nut is welded to the lower surface of the mounting rib. The bolt passes through the vibration damper, the bolt hole, and the flange nut from top to bottom and is threadedly connected.

[0009] Furthermore, the installation ribs are made of a profile with a "J"-shaped cross section and are vertically welded to the installation beams.

[0010] Furthermore, the two bottom edges of the mounting rib are welded to the chassis of the air-conditioning unit, and mounting openings are provided on both side edges of the mounting rib. The mounting openings follow the cross-section of the mounting beam, and the mounting openings of the mounting rib are clamped on the mounting beam. The mounting openings on both sides of the mounting rib are attached to and welded to the outer surface of the mounting beam.

[0011] Furthermore, the vibration damper includes an upper vibration damper and a lower vibration damper, the upper vibration damper is installed above the compressor mounting foot, and the lower vibration damper is installed below the compressor mounting foot and between the mounting rib. The upper vibration damper and the lower vibration damper are both sleeved on the outside of the bolt during installation, and after installation, the upper vibration damper and the lower vibration damper are abutted against each other.

[0012] Furthermore, the upper shock absorber and the lower shock absorber are both composed of two parts, a main body and a protrusion. The protrusions in the upper shock absorber and the lower shock absorber are both installed toward the middle compressor mounting foot, and the protrusions in the upper shock absorber and the lower shock absorber are correspondingly embedded in the compressor mounting foot. After installation, the protrusions in the upper shock absorber and the lower shock absorber are abutted against each other in the compressor mounting foot.

[0013] Furthermore, the compressor mounting foot is fixed on the outer shell of the compressor, and the compressor mounting foot is in an inverted U shape, with the bending direction being the same as that of the mounting rib, and a vibration damper is installed on each of the compressor mounting feet.

[0014] Furthermore, an upper gasket is installed between the upper vibration damper and the compressor mounting foot, and a lower gasket is also installed between the compressor mounting foot and the lower vibration damper. Both the upper gasket and the lower gasket are sleeved on the outside of the bolt.

[0015] Furthermore, a sleeve is mounted on the bolt rod of the bolt, the shock absorber is mounted outside the sleeve, a large washer is mounted against the top of the sleeve, and a flat washer is mounted against the bottom of the sleeve, and the large washer and flat washer are mounted outside the bolt rod.

[0016] The basic concept of the second technical solution adopted in this utility model is:

[0017] A rail vehicle air-conditioning unit comprises a horizontal compressor and adopts the compressor vibration damper mounting structure as described above.

[0018] In summary, the utility model provides a horizontal compressor damper mounting structure and rail vehicle air conditioning unit. When the damper needs to be replaced, the hexagonal bolts can be loosened and removed directly from the top. The compressor can then be slightly lifted to remove the damper from the side. This makes replacing the compressor damper simple and convenient, improves maintainability, and enables rapid replacement of the compressor damper without damaging the refrigeration system, reducing refrigerant waste. It also reduces maintenance workload, improves maintenance efficiency, and reduces maintenance costs.

[0019] The specific implementation of the present invention will be described in further detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are part of this utility model and are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. Obviously, the drawings described below are only some embodiments. For those of ordinary skill in the art, other drawings can be derived from these drawings without inventive effort.

[0021] In the attached figure:

[0022] Figure 1 This is a schematic diagram of the structure of the utility model compressor after installation;

[0023] Figure 2 This is a schematic diagram of the installation structure of the compressor vibration damper of the utility model (including the compressor);

[0024] Figure 3 This is an exploded view of the installation structure of the compressor vibration damper of the utility model;

[0025] Figure 4 It is a schematic diagram of the installation structure of the compressor vibration damper of the utility model.

[0026] In the picture:

[0027] Compressor 1, vibration absorber 2, upper vibration absorber 21, main body 211, protrusion 212, lower vibration absorber 22, main body 221, protrusion 222, compressor mounting foot 3, mounting beam 4, mounting rib 5, bottom edge 51, side edge 52, bolt 6, bolt head 61, bolt rod 62, flange nut 7, upper gasket 8, lower gasket 9, flat gasket 10, spring washer 11, large washer 12, sleeve 13.

[0028] It should be noted that the drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0030] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0031] In the description of this utility model, it should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; and direct connections or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0032] like Figures 1 to 4 As shown, the utility model provides a horizontal compressor shock absorber mounting structure for fixing the shock absorber 2 of the horizontal compressor 1 to the compressor mounting foot 3 and the mounting beam 4 on the air-conditioning unit chassis (not shown in the figure).

[0033] The compressor mounting feet 3 are fixed to the outer casing of the compressor 1, and each compressor mounting foot 3 is equipped with a vibration damper 2. Each compressor 1 is equipped with a compressor mounting foot 3, meaning that each compressor 1 is equipped with four sets of compressor vibration dampers 2. These four sets of vibration dampers 2 distribute the vibration generated by the compressor 1, reducing vibration and noise during operation, thereby improving user comfort. The four sets of compressor vibration dampers 2 have the same mounting structure, with multiple mounting beams 4 welded in parallel to the chassis of the air conditioning unit.

[0034] The horizontal compressor damper mounting structure provided in this embodiment includes mounting ribs 5, bolts 6, and flange nuts 7. The damper 2 is mounted on the bolts 6, which are approximately 60 mm long and preferably have hexagonal heads. The mounting ribs 5 are welded to the corresponding mounting beams 4. Bolt holes 6 are formed in the mounting ribs 5. The flange nuts are first welded directly to the lower surface of the mounting ribs 5. The bolts 6 then penetrate the damper 2 and the bolt holes 6 from top to bottom and are threadedly connected to the flange nuts.

[0035] With this structure, when the vibration damper 2 needs to be replaced, the hexagonal bolt 6 can be loosened and removed directly from the top. The compressor 1 can be slightly lifted to remove the vibration damper 2 from the side. This makes replacing the compressor vibration damper 2 simple and convenient, improves maintainability, and enables quick replacement of the compressor vibration damper 2 without damaging the refrigeration system, reducing refrigerant waste, while also reducing maintenance workload, improving maintenance efficiency, and lowering maintenance costs.

[0036] In this embodiment, preferably, the mounting rib 5 is made of a profile with a "J"-shaped cross section and is welded vertically to the mounting beam 4. Further preferably, the two bottom edges 51 of the mounting rib 5 are welded to the chassis of the air-conditioning unit, and mounting openings (not shown in the figure) are provided on the side edges 52 on both sides of the mounting rib 5. The mounting openings follow the cross-section of the mounting beam 4, and the mounting rib 5 is clamped on the mounting beam 4. The mounting openings on both sides of the mounting rib 5 just fit the outer surface of the mounting beam 4, and are then fixed together by welding. Such a connection structure is conducive to significantly improving the structural strength of the mounting plate 5, making the installation structure of the shock absorber 2 more solid and reliable, and improving the vibration reduction effect of the shock absorber 2 when the compressor 1 is running.

[0037] In this embodiment, preferably, the mounting ribs 5 are arranged along the entire length in a direction perpendicular to the mounting beam 4, and the vibration dampers 2 located on the same side of the compressor 1 (in the width direction of the compressor 1) are mounted on the same mounting rib 5. This helps to simplify the mounting structure.

[0038] In this embodiment, the compressor vibration damper 2 includes an upper vibration damper 21 and a lower vibration damper 22. The upper vibration damper 21 is installed above the compressor mounting foot 3, and the lower vibration damper 22 is installed below the compressor mounting foot 3 and between the mounting rib 5. During installation, both the upper vibration damper 21 and the lower vibration damper 22 are sleeved onto the outside of the bolt 6. The vibration damper 2 adopts a two-part structure, which can achieve a bidirectional vibration damping effect on the compressor 1, thereby effectively reducing the noise generated by the vibration of the compressor 1. In addition, in this structure, the compressor mounting foot 3 is disposed between the upper vibration damper 21 and the lower vibration damper 22. This helps to reduce the vibration transmitted to the mounting beam 4, further enhancing the vibration damping effect of the vibration damper 2.

[0039] The upper shock absorber 21 and the lower shock absorber 22 are both made of rubber material, which not only provides good protection for the middle compressor mounting foot 3, but also effectively reduces the vibration generated when the compressor 1 is running, thereby reducing the noise generated when the compressor 1 is running and improving comfort.

[0040] like Figure 3 and Figure 4As shown, in this embodiment, it is further preferred that the upper shock absorber 21 is composed of a main body 211 and a protruding portion 212. The protruding portion 212 is provided to protrude from the main body 211, and the diameter of the main body 211 is larger than the diameter of the protruding portion 212. The lower shock absorber 22 is similarly composed of a main body 221 and a protruding portion 222. The protruding portion 222 is provided to protrude from the main body 221, and the diameter of the main body 221 is larger than the diameter of the protruding portion 222.

[0041] The protrusion 212 of the upper vibration damper 21 and the protrusion 222 of the lower vibration damper 22 are both installed toward the center of the compressor mounting foot 3, and the protrusion 212 of the upper vibration damper 21 and the protrusion 222 of the lower vibration damper 22 are correspondingly embedded in the center hole of the compressor mounting foot 3. After installation, the protrusion 212 of the upper vibration damper 21 and the protrusion 222 of the lower vibration damper 22 abut against each other in the center hole of the compressor mounting foot 3.

[0042] In this way, since the protrusion 212 in the upper vibration damper 21 and the protrusion 222 in the lower vibration damper 22 are both embedded in the center hole of the compressor mounting foot 3, this can have a good vibration damping effect on the vibration generated in any direction when the compressor 1 moves. At the same time, it can also limit the radial movement of the upper vibration damper 21 and the lower vibration damper 22 relative to the compressor mounting foot 3, ensuring that the upper vibration damper 21, the lower vibration damper 22 and the compressor mounting foot 3 are always coaxial when the compressor 1 is running, which is conducive to further reducing noise.

[0043] In this embodiment, preferably, the compressor mounting foot 3 adopts an inverted U-shaped structure, and the bending direction is the same as the mounting rib 5. The lower shock absorber 22 is surrounded by the inside of the mounting foot 3, which can further limit the axial and radial movement of the lower shock absorber 22.

[0044] In this embodiment, further, an upper gasket 8 is installed between the upper shock absorber 21 and the compressor mounting foot 3, and a lower gasket 9 is installed between the compressor mounting foot 3 and the lower shock absorber 22. The upper gasket 8 and the lower gasket 9 are also both sleeved on the outside of the bolt 6.

[0045] A flat washer 10 is installed between the lower vibration damper 22 and the upper surface of the mounting rib 5, and the flat washer 10 is also sleeved on the outside of the bolt 6. A spring washer 11 and a large washer 12 are installed between the upper vibration damper 21 and the bolt head 61, and the spring washer 11 is installed above the large washer 12.

[0046] In this embodiment, a sleeve 13 is further mounted on the bolt rod 62 of the bolt 6. The upper shock absorber 21, the lower shock absorber 22, the upper gasket 8, and the lower gasket 9 are all mounted outside the sleeve 13. The large washer 12 rests on the top of the sleeve 13, and the flat gasket 10 rests on the bottom of the sleeve 13.

[0047] The following describes the installation steps of the installation structure:

[0048] 1. When replacing the shock absorber 2, loosen the hexagonal bolt 6 and remove it from the top. Lift the compressor 1 slightly, if it can be lifted 1-3mm, the shock absorber 2 can be taken out from the side.

[0049] 2. After replacing and installing the new shock absorber 2, reinsert the hexagonal bolt 6 from top to bottom and tighten it with the flange nut 7 at the bottom. This completes the replacement of the shock absorber 2.

[0050] The utility model also provides a rail vehicle air-conditioning unit, which includes a compressor chamber, an evaporation chamber and a condensation chamber. A horizontal compressor 1 is installed in the compressor chamber. Generally, one or two horizontal compressors 1 are installed. The two horizontal compressors 1 have the same installation structure and are installed on the installation beam 4 of the air-conditioning unit through four sets of compressor vibration dampers 2.

[0051] The beneficial effects of the above solution adopted by the present invention are:

[0052] 1. When the shock absorber 2 needs to be replaced, loosen the hexagonal bolt 6 and remove it directly from the top. Slightly lift the compressor 1 and remove the shock absorber 2 from the side. This makes replacing the compressor shock absorber 2 simple and convenient, improves maintainability, and enables quick replacement of the compressor shock absorber 2 without damaging the refrigeration system, reducing refrigerant waste, reducing maintenance workload, improving maintenance efficiency, and lowering maintenance costs.

[0053] 2. Different compressors 1 can be fixed on the mounting beam 4 independently of each other, and the vibration damper 2 can be used to reduce the vibration of the compressor to avoid resonance when multiple compressors are running at the same time.

[0054] 3. It has strong versatility and can be applied to the installation of shock absorbers 2 of compressors with different specifications. Different compressors 1 do not need to use different installation structures, which reduces labor and material costs.

[0055] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. Any technician familiar with this patent can make some changes or modifications to equivalent embodiments with equivalent changes using the technical content suggested above without departing from the scope of the technical solution of the present invention. The implementation schemes in the above embodiments can be further combined or replaced. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the solution of the present invention.

Claims

1. A horizontal compressor vibration damper mounting structure, comprising a vibration damper, characterized in that: It also includes mounting ribs, bolts and flange nuts. The shock absorber is sleeved on the bolts. The mounting ribs are welded to the chassis and mounting beam of the air-conditioning unit. Bolt holes are opened on the mounting ribs. The flange nuts are welded to the lower surface of the mounting ribs. The bolts pass through the shock absorber and the bolt holes from top to bottom and are threadedly connected to the flange nuts.

2. The horizontal compressor vibration damper mounting structure according to claim 1, characterized in that: The mounting ribs are made of a "J"-shaped profile and are vertically welded to the mounting beams.

3. The horizontal compressor vibration damper mounting structure according to claim 2, characterized in that: The two bottom edges of the mounting rib are welded to the chassis of the air-conditioning unit, and mounting openings are provided on both side edges of the mounting rib. The mounting openings follow the cross-section of the mounting beam, and the mounting openings of the mounting rib are clamped on the mounting beam. The mounting openings on both sides of the mounting rib are attached to and welded to the outer surface of the mounting beam.

4. The horizontal compressor vibration damper mounting structure according to claim 2, characterized in that: The mounting ribs are arranged along the entire length, and the shock absorbers on the same side are mounted on the same mounting rib.

5. The horizontal compressor vibration damper mounting structure according to claim 1, characterized in that: The vibration damper includes an upper vibration damper and a lower vibration damper. The upper vibration damper is installed above the compressor mounting foot, and the lower vibration damper is installed below the compressor mounting foot and between the mounting rib. The upper vibration damper and the lower vibration damper are both sleeved on the outside of the bolt during installation. After installation, the upper vibration damper and the lower vibration damper are abutted against each other.

6. The horizontal compressor vibration damper mounting structure according to claim 5, characterized in that: The upper shock absorber and the lower shock absorber are both composed of a main body and a protrusion. The protrusions in the upper shock absorber and the lower shock absorber are both installed toward the middle compressor mounting foot, and the protrusions in the upper shock absorber and the lower shock absorber are correspondingly embedded in the compressor mounting foot. After installation, the protrusions in the upper shock absorber and the lower shock absorber are abutted against each other in the compressor mounting foot.

7. The horizontal compressor vibration damper mounting structure according to claim 5 or 6, characterized in that: The compressor mounting foot is fixed on the outer shell of the compressor. The compressor mounting foot is in an inverted U shape, and the bending direction is the same as that of the mounting rib. A vibration damper is installed on each of the compressor mounting feet.

8. The horizontal compressor vibration damper mounting structure according to claim 5, characterized in that: An upper gasket is installed between the upper vibration damper and the compressor mounting foot, and a lower gasket is also installed between the compressor mounting foot and the lower vibration damper. Both the upper gasket and the lower gasket are sleeved on the outside of the bolt.

9. The horizontal compressor vibration damper mounting structure according to claim 1, characterized in that: A sleeve is sleeved on the bolt rod of the bolt, the shock absorber is sleeved outside the sleeve, a large washer is installed against the top of the sleeve, and a flat washer is installed against the bottom of the sleeve, and the large washer and the flat washer are sleeved outside the bolt rod.

10. A rail vehicle air conditioning unit, comprising a horizontal compressor, characterized in that: The compressor vibration damper mounting structure according to any one of claims 1 to 9 is adopted.

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