Two-stage screw two-parallel-connection unit

Abstract

The utility model relates to the technical field of accessory devices of screw parallel units, in particular to a combined type motor box for two parallel units of two-stage screws, which is convenient for synchronous shock absorption, noise reduction and heat dissipation of two groups of motors so as to reduce the operation cost, is convenient to mount and dismount, and is convenient for popularization and application. Therefore, the practicability of the two-stage screw two-parallel-connection unit is enhanced. Comprising two sets of motors and two sets of bottom plates, the bottom ends of the two sets of motors are connected with the bottom plates correspondingly, a protection box, two sets of first fixing blocks, two sets of supporting plates, two sets of clamping sliding blocks, a supporting block, two sets of second fixing blocks and two sets of first screws are further included, a cavity is formed in the protection box, and a cover plate assembly is arranged at the top end of the protection box; a heat dissipation assembly is arranged at the front end of the protection box, the rear end of the cavity is connected with the two first fixing blocks, the bottom ends of the two bottom plates are tightly attached to the cavity, and the top ends of the two bottom plates are tightly attached to the first fixing blocks.

Description

Technical Field

[0001] The utility model relates to the technical field of screw parallel machine group accessory devices, in particular to a double-stage screw parallel machine group. Background Art

[0002] As we all know, a two-stage screw parallel unit usually refers to a refrigeration or air-conditioning system composed of two twin-screw compressors connected in parallel through some form (such as pipelines, control systems, etc.). This design is intended to provide higher cooling or heating capacity and more flexible operating modes to adapt to different load requirements or improve system reliability and redundancy. However, the two sets of threaded rod motors in the existing two-stage screw parallel unit are mostly set separately, which makes it time-consuming and labor-intensive to repair and install the two sets of motors, and they also need to be set separately when performing shock absorption, which wastes resources and increases costs, resulting in poor practicality. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a combined motor box, which facilitates the synchronous vibration reduction, noise reduction and heat dissipation of two groups of motors, thereby reducing operating costs, and is convenient for installation and disassembly, thereby enhancing the practicality of a two-stage screw two-parallel unit.

[0004] The utility model discloses a two-stage screw parallel unit, comprising two groups of motors and two groups of bottom plates, the bottom ends of the two groups of motors are respectively connected to the bottom plates, and also comprising a protection box, two groups of first fixing blocks, two groups of support plates, two groups of clamping slide blocks, support blocks, two groups of second fixing blocks and two groups of first screws, the interior of the protection box is provided with a chamber, the top of the protection box is provided with a cover plate assembly, the front end of the protection box is provided with a heat dissipation assembly, the rear end of the chamber is respectively connected to the two groups of first fixing blocks, the bottom ends of the two groups of bottom plates are tightly attached to the chamber, the top ends of the two groups of bottom plates are tightly attached to the first fixing blocks, the output end bearing seals of the two groups of motors pass through the right end of the protection box, and the two groups of bottom plates are provided with a heat dissipation assembly. The top ends are respectively connected to the support plates, the top end of the left support plate is provided with a card-mounted slide groove, the left end of the right support plate is respectively connected to two groups of card-mounted sliders, the two groups of card-mounted sliders are respectively slid and carded with the card-mounted slide grooves, the bottom end of the protective box is provided with an installation component, the rear end of the protective box is provided with a connecting component, the bottom end of the chamber is tightly attached to the support block, the top end of the support block is connected to two groups of second fixed blocks, the top ends of the two groups of second fixed blocks are respectively provided with first through holes, the top end of the support block is provided with two groups of second through holes, the bottom end of the chamber is provided with two groups of first threaded holes, and the two groups of first screws are threadedly connected with the first threaded holes through the first through holes and the second through holes, respectively.

[0005] Preferably, a first buffer pad is provided at the bottom end of the chamber.

[0006] Preferably, the cover plate assembly includes a cover plate and four groups of second screws, the top of the protective box is provided with four groups of mounting threaded holes, the top of the cover plate is provided with four groups of mounting through holes, and the four groups of second screws are threadedly connected with the mounting threaded holes through the mounting through holes respectively.

[0007] Preferably, a first sound insulation pad is provided on the front end, rear end and right end of the chamber, and a second sound insulation pad is provided at the bottom end of the cover plate.

[0008] Preferably, the heat dissipation assembly includes two groups of fixed sleeves, two groups of fan motors and two groups of exhaust fan blade assemblies. Two groups of through-holes are provided at the front end of the motor, and the two groups of through-holes are respectively connected to the fixed sleeve sets. The inner ends of the two groups of fixed sleeves are respectively provided with crosses, and the front ends of the two groups of crosses are respectively connected to the fan motors. The output ends of the two groups of fan motors respectively pass through the front ends of the crosses through bearing seals, and the output ends of the two groups of fan motors are respectively connected to the exhaust fan blade assemblies.

[0009] Preferably, dustproof nets are respectively provided on the front sides of the two groups of fixing sleeves.

[0010] Preferably, the connecting assembly includes two groups of sleeves, two groups of rotating rods and two groups of flanges. The rear end of the protective box is connected to the two groups of sleeves, the output ends of the two groups of motors are respectively connected to the rotating rods, the rear ends of the two groups of sleeves are respectively connected to the flanges, and the front ends of the two groups of flanges are respectively provided with four groups of third through holes.

[0011] Preferably, the mounting assembly includes a mounting plate, a second buffer pad and four groups of third screws. The bottom end of the protective box is connected to the mounting plate, the bottom end of the mounting plate is tightly attached to the second buffer pad, and four groups of fixed through holes are provided at the top of the mounting plate, and the four groups of third screws respectively pass through the fixed through holes.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows: first, the protective box is connected to the dual parallel unit through the installation component, and then the two motor output ends are sealed and connected to the screws through the connecting component. After that, when the two-stage screw dual parallel unit is used, the two motors can be cooled together through the heat dissipation component, thereby ensuring the heat dissipation of the two motors and preventing the motor vibration caused by overheating inside the motor. When repairing the equipment, the support block and the second fixed block can be disassembled through the two sets of first screws, and the sliding card bottom plate and the motor can be removed respectively, thereby reducing the operating cost and facilitating installation and disassembly, thereby enhancing practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the connection structure of the utility model;

[0014] Figure 2 It is a schematic diagram of the connection structure between the sleeve and the protective box of the utility model;

[0015] Figure 3 It is a schematic diagram of the connection structure between the support block and the second fixed block of the utility model;

[0016] Figure 4 It is a schematic diagram of the enlarged structure of the A part of the utility model;

[0017] Markings in the accompanying drawings: 1. Motor; 2. Protection box; 3. Base plate; 4. First fixed block; 5. Support plate; 6. Card-mounted slider; 7. Support block; 8. Second fixed block; 9. First screw; 10. Buffer pad; 11. Cover plate; 12. Second screw; 13. First sound insulation pad; 14. Second sound insulation pad; 15. Fixed sleeve; 16. Cross; 17. Fan motor; 18. Exhaust fan blade assembly; 19. Dust net; 20. Sleeve; 21. Rotating rod; 22. Flange; 23. Mounting plate; 24. Buffer pad; 25. Third screw; 30. Chamber. DETAILED DESCRIPTION

[0018] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0019] like Figures 1 to 4As shown, a two-stage screw parallel unit of the utility model includes two sets of motors 1 and two sets of bottom plates 3. The bottom ends of the two sets of motors 1 are respectively connected to the bottom plates 3. It also includes a protection box 2, two sets of first fixing blocks 4, two sets of support plates 5, two sets of clamping slide blocks 6, support blocks 7, two sets of second fixing blocks 8 and two sets of first screws 9. The protection box 2 is provided with a chamber 30 inside, the top of the protection box 2 is provided with a cover plate assembly, the front end of the protection box 2 is provided with a heat dissipation assembly, and the rear end of the chamber 30 is respectively connected to the two sets of The first fixed block 4 is connected, the bottom ends of the two groups of bottom plates 3 are tightly attached to the chamber 30, the top ends of the two groups of bottom plates 3 are tightly attached to the first fixed block 4, the output end bearing seals of the two groups of motors 1 pass through the right end of the protective box 2, the top ends of the two groups of bottom plates 3 are respectively connected to the support plates 5, the top end of the left support plate 5 is provided with a card-mounting slide groove, the left end of the right support plate 5 is respectively connected to the two groups of card-mounting sliders 6, the two groups of card-mounting sliders 6 are respectively slidably carded with the card-mounting slide grooves, the bottom end of the protective box 2 is provided with a mounting assembly, and the rear end of the protective box 2 A connecting component is provided, the bottom end of the chamber 30 is tightly attached to the support block 7, the top end of the support block 7 is attached to two groups of second fixed blocks 8, the top ends of the two groups of second fixed blocks 8 are respectively provided with first through holes, the top end of the support block 7 is provided with two groups of second through holes, the bottom end of the chamber 30 is provided with two groups of first threaded holes, and the two groups of first screws 9 are threadedly connected to the first threaded holes through the first through holes and the second through holes respectively; first, the protective box is connected to the dual parallel unit through the installation component, and then the output ends of the two groups of motors are sealed and connected to the screws through the connecting component, and then when the two-stage screw dual parallel unit is used, the heat dissipation component can be used to dissipate the heat of the two groups of motors together, so as to ensure the heat dissipation of the two groups of motors and prevent the motor vibration caused by overheating inside the motor, and when the equipment is repaired, the support block and the second fixed block can be disassembled by the two groups of first screws, and the sliding card bottom plate and the motor can be removed respectively, thereby reducing the operating cost and facilitating installation and disassembly, thereby enhancing practicality.

[0020] As a preference of the above embodiment, a first buffer pad 10 is provided at the bottom end of the chamber 30; the first buffer pad can reduce the vibration of the two groups of motors, thereby protecting the two groups of motors, thereby enhancing practicality.

[0021] As a preferred embodiment of the above embodiment, the cover assembly includes a cover 11 and four groups of second screws 12, the top of the protective box 2 is provided with four groups of mounting threaded holes, the top of the cover 11 is provided with four groups of mounting through holes, and the four groups of second screws 12 are threadedly connected with the mounting threaded holes through the mounting through holes respectively; the chamber can be opened and closed by the cover and the four groups of second screws, thereby facilitating the repair and maintenance of the inner wall parts of the protective box, thereby enhancing practicality.

[0022] As a preferred embodiment of the above embodiment, a first sound insulation pad 13 is provided on the front end, rear end and right end of the chamber 30, and a second sound insulation pad 14 is provided at the bottom end of the cover plate 11; the first sound insulation pad and the second sound insulation pad can improve the propagation of noise in the chamber and the vibration of the reduction motor group, thereby enhancing practicality.

[0023] As a preferred embodiment of the above embodiment, the heat dissipation component includes two groups of fixed sleeves 15, two groups of fan motors 17 and two groups of exhaust fan blade assemblies 18. Two groups of through-holes are provided at the front end of the motor 1, and the two groups of through-holes are respectively connected to the fixed sleeves 15. The inner ends of the two groups of fixed sleeves 15 are respectively provided with crosses 16. The front ends of the two groups of crosses 16 are respectively connected to the fan motors 17. The output ends of the two groups of fan motors 17 respectively pass through the front ends of the crosses 16 through bearing seals, and the output ends of the two groups of fan motors 17 are respectively connected to the exhaust fan blade assemblies 18; when the equipment is started, the two groups of fan motors drive the two groups of exhaust fan blade assemblies to dissipate heat and ventilation in the chamber, thereby improving the heat dissipation of the motor and protecting the motor, thereby enhancing practicality.

[0024] As a preference of the above embodiment, the front sides of the two groups of fixing sleeves 15 are respectively provided with dustproof nets 19; the two groups of dustproof nets can prevent dust from entering the chamber through the fixing sleeves, thereby enhancing practicality.

[0025] As a preferred embodiment of the above embodiment, the connecting assembly includes two groups of sleeves 20, two groups of rotating rods 21 and two groups of flanges 22. The rear end of the protective box 2 is connected to the two groups of sleeves 20, the output ends of the two groups of motors 1 are respectively connected to the rotating rods 21, the rear ends of the two groups of sleeves 20 are respectively connected to the flanges 22, and the front ends of the two groups of flanges 22 are respectively provided with four groups of third through holes; the spiral blades can be connected through the rotating rod, and the sleeve and the dual parallel unit can be sealed and connected through the two groups of flanges, thereby enhancing practicality.

[0026] As a preferred embodiment of the above embodiment, the mounting assembly includes a mounting plate 23, a second buffer pad 24 and four groups of third screws 25. The bottom end of the protective box 2 is connected to the mounting plate 23, the bottom end of the mounting plate 23 is tightly attached to the second buffer pad 24, and the top of the mounting plate 23 is provided with four groups of fixed through holes, and the four groups of third screws 25 respectively pass through the fixed through holes; the protective box can be installed on the dual parallel unit through the four groups of third screws on the mounting plate, and the shock absorption and buffering of the two groups of motors can be enhanced through the second buffer pad, thereby enhancing practicality.

[0027] The utility model discloses a two-stage screw two-parallel unit, and its working principle is as follows: when it is working, the protection box is first connected to the two-parallel unit through the mounting plate and four groups of third screws, and then the sleeve is sealed and connected to the compressor on the two-parallel unit through the flange, and then the rotating rod in the sleeve is connected to the spiral blade, and then when the two-stage screw two-parallel unit is used, the fan blade assembly can be driven to rotate by the two groups of fan motors, so as to carry out the common heat dissipation of the two groups of motors, so as to ensure the heat dissipation of the two groups of motors and prevent the motor vibration caused by overheating inside the motor, and when the equipment is repaired, the support block and the second fixed block can be disassembled by the two groups of first screws, and the sliding card bottom plate and the motor can be removed respectively, so as to facilitate the maintenance of the motor, and then the first sound insulation pad and the second sound insulation pad arranged on the outer wall of the chamber can reduce the propagation of noise in the chamber, and the vibration of the two groups of motors can be slowed down and buffered by the first buffer pad, so as to improve the service life of the two groups of motors.

[0028] The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.

[0029] The “first”, “second” and “third” mentioned in the present invention do not represent specific quantities and orders, but are merely used to distinguish names.

[0030] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A two-stage screw parallel unit, comprising two motors (1) and two bottom plates (3), wherein the bottom ends of the two motors (1) are respectively connected to the bottom plates (3); characterized in that: The protective box (2) further comprises a protective box (2), two groups of first fixing blocks (4), two groups of support plates (5), two groups of clamping slide blocks (6), support blocks (7), two groups of second fixing blocks (8) and two groups of first screws (9); a chamber (30) is arranged inside the protective box (2); a cover plate assembly is arranged at the top end of the protective box (2); a heat dissipation assembly is arranged at the front end of the protective box (2); the rear ends of the chambers (30) are respectively connected to the two groups of first fixing blocks (4); the bottom ends of the two groups of bottom plates (3) are tightly attached to the chambers (30); the top ends of the two groups of bottom plates (3) are tightly attached to the first fixing blocks (4); the output end bearing seals of the two groups of motors (1) pass through the right end of the protective box (2); the top ends of the two groups of bottom plates (3) are respectively connected to the support plates (5); the left The top of the side support plate (5) is provided with a card-mounted slot, the left end of the right support plate (5) is respectively connected to the two groups of card-mounted sliders (6), the two groups of card-mounted sliders (6) are respectively slidably card-mounted with the card-mounted slots, the bottom end of the protective box (2) is provided with a mounting assembly, the rear end of the protective box (2) is provided with a connecting assembly, the bottom end of the chamber (30) is tightly attached to the support block (7), the top of the support block (7) is connected to the two groups of second fixed blocks (8), the tops of the two groups of second fixed blocks (8) are respectively provided with first through holes, the top of the support block (7) is provided with two groups of second through holes, the bottom end of the chamber (30) is provided with two groups of first threaded holes, and the two groups of first screws (9) are respectively threadedly connected to the first threaded holes through the first through holes and the second through holes.

2. A two-stage screw parallel unit as claimed in claim 1, characterized in that: A first buffer pad (10) is provided at the bottom end of the chamber (30).

3. A two-stage screw parallel unit as claimed in claim 2, characterized in that: The cover plate assembly comprises a cover plate (11) and four groups of second screws (12); the top of the protective box (2) is provided with four groups of mounting threaded holes; the top of the cover plate (11) is provided with four groups of mounting through holes; the four groups of second screws (12) are respectively threadedly connected to the mounting threaded holes through the mounting through holes.

4. A two-stage screw parallel unit as claimed in claim 3, characterized in that: A first sound insulation pad (13) is provided at the front end, the rear end and the right end of the chamber (30), and a second sound insulation pad (14) is provided at the bottom end of the cover plate (11).

5. A two-stage screw parallel unit as claimed in claim 4, characterized in that: The heat dissipation assembly comprises two groups of fixing sleeves (15), two groups of fan motors (17) and two groups of exhaust fan blade assemblies (18). The front end of the motor (1) is provided with two groups of through-holes, and the two groups of through-holes are respectively connected to the fixing sleeves (15). The inner ends of the two groups of fixing sleeves (15) are respectively provided with crosses (16), and the front ends of the two groups of crosses (16) are respectively connected to the fan motors (17). The output ends of the two groups of fan motors (17) are respectively sealed with bearings and pass through the front ends of the crosses (16), and the output ends of the two groups of fan motors (17) are respectively connected to the exhaust fan blade assemblies (18).

6. A two-stage screw parallel unit as claimed in claim 5, characterized in that: The front sides of the two groups of fixing sleeves (15) are respectively provided with dustproof nets (19).

7. A two-stage screw parallel unit as claimed in claim 6, characterized in that: The connection assembly comprises two sets of sleeves (20), two sets of rotating rods (21) and two sets of flanges (22); the rear end of the protection box (2) is connected to the two sets of sleeves (20); the output ends of the two sets of motors (1) are respectively connected to the rotating rods (21); the rear ends of the two sets of sleeves (20) are respectively connected to the flanges (22); and the front ends of the two sets of flanges (22) are respectively provided with four sets of third through holes.

8. A two-stage screw parallel unit as claimed in claim 7, characterized in that: The mounting assembly comprises a mounting plate (23), a second buffer pad (24) and four groups of third screws (25); the bottom end of the protective box (2) is connected to the mounting plate (23); the bottom end of the mounting plate (23) is in close contact with the second buffer pad (24); the top end of the mounting plate (23) is provided with four groups of fixing through holes, and the four groups of third screws (25) respectively pass through the fixing through holes.

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