Combined screw air compressor main machine

Abstract

The utility model relates to a combined screw air compressor host computer belongs to screw air compressor host computer technical field, this combined screw air compressor host computer, include: shell and set up in the two compression cavities of shell inside, be provided with screw body in the compression cavity, the guide mechanism includes a plurality of setting in the guide rod of shell inner wall, the one end fixedly connected with the locating block of guide rod far away from the shell, the side far away from the shell of locating block is provided with the limiting block, through setting up the guide mechanism on the surface of shell, can provide accurate axial guidance and radial location for it when installing screw, make staff not need to rely on experience repeatedly to adjust the centering position, can push into the compression cavity predetermined installation position fast and accurately with screw, thereby significantly reduce the technical difficulty and operation time of screw installation process after maintenance, improve maintenance efficiency and reduce the maintenance difficulty.

Description

Technical Field

[0001] This utility model relates to the field of screw air compressor main unit technology, and in particular to a combined screw air compressor main unit. Background Technology

[0002] The modular screw air compressor unit is a highly integrated core component. Breaking away from traditional designs, it structurally integrates the main unit with key systems such as the intake control valve, lubrication circuit, and cooling channels into a single unit. This integrated structure greatly simplifies external piping connections, effectively reduces pressure loss and leakage risks, thereby achieving higher energy efficiency and operational reliability.

[0003] Traditional screw air compressors typically employ a standalone main unit working in conjunction with multiple auxiliary devices. This structural feature allows for easy disassembly of the main unit from the system during maintenance, making the operation relatively straightforward. However, as a highly integrated functional component, the modular screw air compressor main unit has a compact internal structure with tightly coupled subsystems. This design advantage, however, also presents practical difficulties during disassembly and maintenance. If the entire modular compressor unit is removed from the machine, its overall weight and structural complexity are significantly higher than traditional compressor units, greatly increasing the physical burden on workers and the operation time. If maintenance is attempted on the screw compressor directly within the machine body without disassembling the entire unit, the confined internal space and densely packed components make reinstalling the screw compressor extremely difficult. Therefore, regardless of whether a complete disassembly or partial repair is adopted, maintaining the screw compressor in a modular screw air compressor unit generally presents significant operational challenges. Utility Model Content

[0004] Therefore, it is necessary to provide a combined screw air compressor main unit to address the problem of difficult screw maintenance in traditional combined screw air compressor main units.

[0005] A combined screw air compressor main unit includes: a housing and two compression chambers disposed inside the housing, wherein a screw body is disposed inside the compression chamber; The guiding mechanism includes a plurality of guide rods disposed on the inner wall of the housing. A positioning block is fixedly connected to one end of each guide rod away from the housing, and a limit block is provided on the side of the positioning block away from the housing.

[0006] In one embodiment, the interior of the housing is provided with a plurality of guide grooves corresponding to the guide rods, the guide rods are slidably connected to the guide grooves, and the plurality of guide rods are disposed on the periphery of the compression cavity.

[0007] In one embodiment, the surface of the positioning block has two positioning holes, which are used in conjunction with the rotating shaft of the screw body. The surface of the limiting block is rotatably connected to two adapter blocks, and the rotating shaft of the screw body is inserted into the adapter blocks.

[0008] In one embodiment, two guide blocks are fixedly connected to the side of the positioning block near the outer shell. The guide blocks have a U-shaped cross-section and are disposed around the positioning hole.

[0009] In one embodiment, the inner wall of the limiting block is rotatably connected to a plurality of locking rods, one end of the locking rod penetrating into the positioning block, and a locking block is fixedly connected to the surface of the locking rod near the positioning block.

[0010] In one embodiment, the positioning block has multiple locking grooves on the side surface near the limiting block, and the positioning block and the limiting block are engaged by locking rods in the locking grooves.

[0011] In one embodiment, the end of the locking rod away from the positioning block passes through the limiting block and is flush with the surface of the limiting block, and the end of the locking rod away from the positioning block is provided with a locking wedge hole.

[0012] In one embodiment, the outer shell near the positioning block and the surface of the positioning block are provided with multiple mounting holes, and the outer shell and the positioning holes are fixedly installed by bolts through the mounting holes.

[0013] Beneficial effects 1. By setting a guide mechanism on the surface of the housing, precise axial guidance and radial limiting can be provided for the screw during installation. This allows the operator to push the screw into the predetermined installation position in the compression chamber quickly and accurately without relying on experience to repeatedly adjust the centering position. This significantly reduces the technical difficulty and operation time of the screw installation process after maintenance, effectively avoids component scratches or assembly damage caused by centering deviation, and improves maintenance efficiency while reducing maintenance difficulty. 2. By setting a limiting block on one side of the positioning block, the operator can make fine-tuning adjustments to the angle by extending the rotating shaft of the positioning block during screw installation, thereby quickly achieving alignment and docking with the drive shaft. After docking, the limiting block can effectively protect the exposed part of the rotating shaft, preventing it from being misaligned or damaged due to accidental collisions during subsequent operation, thus improving assembly efficiency while providing effective protection for the screw. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the installation state of this utility model; Figure 3 This is a schematic diagram of the overall structure of the guiding mechanism of this utility model; Figure 4 This is a schematic diagram showing the connection between the positioning block and the limiting block of this utility model; Figure 5 This is a schematic diagram of the internal structure of the positioning block and the limiting block of this utility model.

[0016] Figure label: 100. Outer shell; 110. Compression chamber; 200. Screw body; 300. Guide mechanism; 310. Guide rod; 311. Guide groove; 320. Positioning block; 321. Positioning hole; 322. Guide block; 330. Limiting block; 331. Adapter block; 332. Locking rod; 3321. Locking block; 333. Locking groove; 340. Mounting hole. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0018] The following is combined with Figure 1 - Figure 5 This invention describes the main unit of a combined screw air compressor.

[0019] In one embodiment, a combined screw air compressor main unit, such as Figure 1 As shown, the main unit of the combined screw air compressor in this embodiment includes: a housing 100 and two compression chambers 110 disposed inside the housing 100, and a screw body 200 is disposed inside the compression chamber 110; The guide mechanism 300 includes a plurality of guide rods 310 disposed on the inner wall of the housing 100. A positioning block 320 is fixedly connected to one end of the guide rod 310 away from the housing 100. A limit block 330 is provided on the side of the positioning block 320 away from the housing 100.

[0020] The model of this device is: AA-6R twin-screw air compressor extruder main unit. The outer shell 100 is equipped with a bearing at the end away from the positioning block 320. The rotating shaft of the screw body 200 at the end away from the positioning block 320 is wedge-shaped and engaged with the bearing. The outer shell 100 at the end away from the positioning block 320 is also equipped with a locking block, which is also wedge-shaped and engaged with the rotating shaft of the screw body 200 at the end away from the positioning block 320. The locking block is connected and driven by an external drive motor through a coupling, thereby driving the screw body 200 to rotate.

[0021] like Figure 1 , Figure 2 and Figure 3 As shown, the interior of the outer casing 100 has multiple guide grooves 311 corresponding to the guide rods 310. The guide rods 310 are slidably connected to the guide grooves 311, and the multiple guide rods 310 are all located around the compression chamber 110. The surface of the positioning block 320 has two positioning holes 321, which cooperate with the rotating shaft of the screw body 200. The surface of the limiting block 330 has two adapter blocks 331 rotatably connected, and the rotating shaft of the screw body 200 is inserted into the adapter blocks 331. Two guide blocks 322 are fixedly connected to the side of the positioning block 320 near the outer casing 100. The cross-section of the guide blocks 322 is U-shaped, and the guide blocks 322 are located around the positioning holes 321.

[0022] In this embodiment, when the operator inserts the screw body 200 into the positioning hole 321, the screw needs to be parallel to the ground first. At this time, the shaft of the screw body 200 will be perpendicular to the surface of the positioning block 320. Keep the shaft of the screw body 200 in contact with the surface of the positioning block 320, and then slide it along the guide block to the bottom of the guide block. The upper part of the guide block is arc-shaped and expands to both sides, so the shaft of the screw body 200 can quickly align with the positioning hole 321. After the shaft is inserted into the positioning hole 321, the positioning hole 321 will provide radial support force to the screw through the shaft, so that the screw body 200 maintains the angle aligned with the compression chamber 110. Then, the operator needs to provide a support force to the end of the screw body 200 away from the positioning block 320 by hand until the end of the screw body 200 away from the positioning block 320 enters the compression chamber 110 to prevent the shaft of the screw body 200 near the positioning block 320 from deforming due to the excessive weight of the screw body 200. It should be noted that this device achieves the effect of quick installation of the rotating rod body by setting a guide mechanism 300 inside the housing 100 and at one end of the housing 100. The guide rod 310 and guide groove 311 in the guide mechanism 300 of this device are reasonably set inside the housing 100 and will not affect the compression chamber 110, air inlet and exhaust port inside the housing 100. The positioning block 320 of this device is provided with a corresponding sealing component to the housing 100. After the positioning block 320 is installed, it will not have any impact on the inside of the housing 100.

[0023] like Figure 3 , Figure 4 and Figure 5 As shown, multiple locking rods 332 are rotatably connected to the inner wall of the limiting block 330. One end of the locking rod 332 penetrates into the positioning block 320, and a latching block 3321 is fixedly connected to the surface of the locking rod 332 near the positioning block 320. Multiple locking grooves 333 are provided on the surface of the positioning block 320 near the limiting block 330, and the positioning block 320 and the limiting block 330 are engaged by the locking rod 332 engaging with the locking grooves 333. The end of the locking rod 332 away from the positioning block 320 penetrates through the limiting block 330 and is flush with the surface of the limiting block 330, and a locking wedge-shaped hole is provided on the end of the locking rod 332 away from the positioning block 320. Multiple mounting holes 340 are provided on the end of the outer shell 100 near the positioning block 320 and on the surface of the positioning block 320, and the outer shell 100 is fixedly installed with the positioning hole 321 by bolts through the mounting holes 340.

[0024] In this embodiment, the locking rod 332 is mainly composed of a rotating ring and a connecting rod. The connecting rod is rotatably connected to the inner wall of the limiting rod through the rotating ring. The cross-section of the locking groove 333 is composed of two relatively distributed fan-shaped grooves and corresponds to the locking block 3321. When the locking block 3321 is inserted into the locking groove 333, the locking block 3321 will go deeper along the groove. When the locking block 3321 moves to the end of the locking groove 333, the locking rod 332 is rotated to make the locking block 3321 rotate, thereby cooperating with the fan-shaped groove to lock the locking block 3321, so that the locking block 3321 cannot move on the central axis of the locking groove 333, thereby limiting the limiting block 330.

[0025] Working principle: When maintenance is required on the screw body 200 inside the main unit, the operator can directly remove the limit block 330 and the positioning block 320 and then directly pull the screw body 200 out of the compression chamber 110. During this process, the operator first needs to rotate the locking rod 332 to disengage the limiting block 330 from the positioning block 320, then remove the limiting block 330 from the positioning block 320, and then remove all the locking bolts between the positioning block 320 and the outer shell 100 from the mounting hole 340. After that, the operator pulls the positioning block 320 away from the outer shell 100. At this time, the compression chamber 110 is protected to the outside. The operator can directly remove the screw body 200 from the compression chamber 110 through the shaft of the screw body 200 for maintenance. After maintenance, the operator needs to reload the screw body 200 back into the compression chamber 110. First, the operator positions the screw body 200 horizontally, with one end of the shaft against the surface of the positioning block 320 and sliding it along the guide block into the positioning hole 321. Then, the shaft of the screw body 200 is inserted into the positioning hole 321, with the shaft passing through it. The screw body 200 as a whole is aligned with the compression chamber 110 under the constraint of the positioning hole 321 and the positioning shaft. The operator then holds the screw body 200 and pushes the positioning block... 320 allows for quick insertion of the screw body 200 into the compression chamber 110. During insertion, the screw body 200 shaft can be rotated to adjust the other end of the screw body 200, thereby aligning it with the drive shaft of the housing 100 away from the positioning block 320. After the screw body 200 is installed into the compression chamber 110, the operator needs to reinstall the limiting block 330 back onto the surface of the positioning block 320, and simultaneously insert the screw body 200 shaft into the interior of the adapter block 331. The limiting block 330 is then locked by rotating the locking rod 332, thus completing the installation.

[0026] It should be noted that the outer shell 100, screw body 200, compression chamber 110 and adapter block 331 mentioned above are all devices with relatively mature existing technology. The specific models can be selected according to actual needs, and will not be elaborated here.

[0027] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A combined screw air compressor main unit, characterized in that, include: The housing (100) and two compression chambers (110) disposed inside the housing (100), wherein a screw body (200) is disposed inside the compression chamber (110). The guide mechanism (300) includes a plurality of guide rods (310) disposed on the inner wall of the housing (100). A positioning block (320) is fixedly connected to one end of the guide rod (310) away from the housing (100). A limit block (330) is provided on the side of the positioning block (320) away from the housing (100).

2. The combined screw air compressor main unit according to claim 1, characterized in that, The housing (100) has multiple guide grooves (311) corresponding to the guide rods (310) inside. The guide rods (310) are slidably connected to the guide grooves (311), and the multiple guide rods (310) are all located on the periphery of the compression cavity (110).

3. The combined screw air compressor main unit according to claim 1, characterized in that, The positioning block (320) has two positioning holes (321) on its surface. The positioning holes (321) are used in conjunction with the rotating shaft of the screw body (200). The limiting block (330) has two adapter blocks (331) rotatably connected to its surface. The rotating shaft of the screw body (200) is inserted into the adapter blocks (331).

4. The combined screw air compressor main unit according to claim 3, characterized in that, The positioning block (320) has two guide blocks (322) fixedly connected to one side of the outer shell (100). The guide blocks (322) have a "U" shaped cross section and are located around the positioning hole (321).

5. The combined screw air compressor main unit according to claim 1, characterized in that, The inner wall of the limiting block (330) is rotatably connected with a plurality of locking rods (332), one end of the locking rod (332) penetrates into the positioning block (320), and a locking block (3321) is fixedly connected to the surface of the locking rod (332) near the positioning block (320).

6. The combined screw air compressor main unit according to claim 5, characterized in that, The positioning block (320) has multiple locking grooves (333) on the side surface near the limiting block (330). The positioning block (320) and the limiting block (330) are engaged by locking rod (332) and locking groove (333).

7. The combined screw air compressor main unit according to claim 6, characterized in that, The locking rod (332) has one end away from the positioning block (320) that passes through the limiting block (330) and is flush with the surface of the limiting block (330). The locking rod (332) has a locking wedge hole at one end away from the positioning block (320).

8. The combined screw air compressor main unit according to claim 1, characterized in that, The outer shell (100) has multiple mounting holes (340) on one end near the positioning block (320) and on the surface of the positioning block (320). The outer shell (100) and the positioning holes (321) are fixedly installed by bolts through the mounting holes (340).

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