A frame for a scroll compressor

Abstract

The present invention discloses a frame for a scroll compressor, which belongs to the technical field of scroll compressors, and includes a housing, a crank and a positioning frame. The outer sleeve of the crankshaft is provided with a positioning frame, and the crankshaft is connected to the positioning frame through a bearing. The crankshaft can be positioned by the positioning frame, and the outer portion of the positioning frame is fixedly connected with a fixing ring. According to the present invention, when the crankshaft is offset during rotation, the crankshaft will drive the adjustment sleeve to deviate in the installation cavity through the bearing. When the adjustment sleeve is offset, part of the telescopic rod will be stretched, and part will be compressed. In this way, the adjustment sleeve can be protected to avoid contact between the adjustment sleeve and the installation shell. At the same time, the movement of the adjustment sleeve can drive the crankshaft and the bearing to interact together, thereby avoiding point-surface contact between the crankshaft and the bearing, and preventing large friction between the crankshaft and the bearing. In this way, the stability and service life of the crankshaft and the bearing can be increased.

Description

Technical Field

[0001] The invention relates to the technical field of scroll compressors, in particular to a frame for a scroll compressor. Background Art

[0002] During the use of the scroll compressor, the motor drives the crankshaft to rotate, and then the crankshaft drives the movable scroll to rotate, and then the movable scroll and the static scroll cooperate with each other to compress the air. During this process, the crankshaft will deviate when rotating, and point-to-surface contact will occur between the crankshaft and the bearing on the fixed frame. The point-to-surface contact between the crankshaft and the bearing will greatly increase the friction between the crankshaft and the bearing, thereby increasing the consumption of the crankshaft and the bearing. Therefore, the present invention provides a frame for a scroll compressor to solve the above-mentioned problems. Summary of the invention

[0003] The object of the present invention is to provide a frame for a scroll compressor to solve the problems raised in the above background technology.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] A frame for a scroll compressor, comprising a housing, a crank and a positioning frame, wherein the positioning frame is sleeved on the outside of the crankshaft, the crankshaft is connected to the positioning frame through a bearing, the crankshaft can be positioned by the positioning frame, the positioning frame is fixedly connected to the outside of the positioning frame, the fixing ring is fixedly connected to the outside of the fixing ring, and a plurality of fixing legs are fixedly connected to the housing through bolts;

[0006] The positioning frame includes two mounting shells, both of which are provided with mounting openings, the interior of the mounting shells is provided with a mounting cavity, an adjustment sleeve is installed in the mounting cavity, the adjustment sleeve is connected to the mounting shell through a supporting structure, a locking structure is installed inside the adjustment sleeve, and the bearing can be locked by the locking structure.

[0007] As a further solution of the present invention, a plurality of supporting structures are provided at both upper and lower ends of the adjusting sleeve, and the supporting structure comprises a telescopic rod, one end of the telescopic rod is movably connected to the adjusting sleeve, and the other end is movably connected to the mounting shell.

[0008] As a further solution of the present invention, a return spring is sleeved on the exterior of the telescopic rod.

[0009] As a further solution of the present invention, a plurality of slide grooves are provided on the outer wall of the adjusting sleeve, a slider is slidably connected inside the slide groove, and one end of the telescopic rod close to the adjusting sleeve is rotatably connected to the slider.

[0010] As a further solution of the present invention, the internal thread connection of the mounting shell is connected with a connecting head, the upper end of the connecting head passes through the top of the mounting shell, and the end of the connecting head located outside the mounting shell is threadedly connected with a nut, and the telescopic rod is rotatably connected to the connecting head.

[0011] As a further solution of the present invention, the locking structure includes two clamping pads, a plurality of positioning rods are inserted into the adjustment sleeve, and the clamping pads are slidably connected to the positioning rods.

[0012] As a further solution of the present invention, a plurality of adjustment grooves are opened at the upper end of the clamping pad, an inclined surface is provided inside the adjustment groove, a threaded disk is also provided above the adjustment sleeve, a plurality of push rods are fixedly connected to the lower end of the threaded disk, and the push rods are inserted in the adjustment grooves.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. When the present invention is used, when the crankshaft deviates during rotation, the crankshaft will drive the adjusting sleeve to deviate in the installation cavity through the bearing. When the adjusting sleeve deviates, part of the telescopic rod will be stretched, and part of it will be compressed. In this way, the adjusting sleeve can be protected to avoid contact between the adjusting sleeve and the installation shell. At the same time, the movement of the adjusting sleeve can drive the crankshaft and the bearing to interact together, thereby avoiding point-surface contact between the crankshaft and the bearing, and preventing large friction between the crankshaft and the bearing. In this way, the stability and service life of the crankshaft and the bearing can be increased.

[0015] 2. When the present invention is used, after the inspection and maintenance are completed, the adjusting sleeve is put on the crankshaft and then the threaded disk is rotated to move the threaded disk downward. When the threaded disk moves downward, the clamping pad is pushed toward the bearing through the push rod, thereby locking the bearing. In this way, the crankshaft can be connected to the positioning frame, and the positioning frame can be installed and disassembled. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The present invention is a schematic diagram of the use of a frame for a scroll compressor.

[0017] Figure 2 The present invention is a structural diagram of a frame for a scroll compressor.

[0018] Figure 3 A disassembled view of a frame for a scroll compressor.

[0019] Figure 4 A cross-sectional view of a frame for a scroll compressor.

[0020] Figure 5 A frame for a scroll compressor Figure 4A is an enlarged structural diagram.

[0021] Figure 6 The present invention is a structural diagram of a clamping pad in a frame for a scroll compressor.

[0022] Figure 7 The present invention is a structural diagram of an adjustment slot in a frame for a scroll compressor.

[0023] In the figure: 1. shell; 2. base; 3. stator; 4. rotor; 5. crankshaft; 6. oil storage chamber; 7. oil baffle plate; 8. positioning frame; 9. fixing ring; 10. fixing leg; 11. supporting structure; 110. telescopic rod; 111. reset spring; 112. slider; 113. slide groove; 800. mounting shell; 801. mounting groove; 802. mounting chamber; 803. adjusting sleeve; 804. mounting port; 805. clamping pad; 806. positioning rod; 807. threaded disk; 808. adjusting groove; 809. push rod; 810. bearing; 811. connector. DETAILED DESCRIPTION

[0024] Embodiment 1:

[0025] See also Figures 1 to 3 In an embodiment of the present invention, a frame for a scroll compressor includes a shell 1, a base 2 is installed at the lower end of the shell 1, a stator 3 is installed inside the shell 1, a rotor 4 is installed inside the stator 3, a crankshaft 5 is installed in the middle of the rotor 4, an oil storage chamber 6 is provided at the lower end of the crankshaft 5, an oil baffle plate 7 is installed at the upper end of the oil storage chamber 6, a positioning frame 8 is provided on the outer sleeve of the crankshaft 5, the crankshaft 5 is connected to the positioning frame 8 through a bearing 810, the crankshaft 5 can be positioned by the positioning frame 8, a fixing ring 9 is fixedly connected to the outside of the fixing ring 9, a plurality of fixing legs 10 are fixedly connected to the outside of the fixing ring 9, and the fixing legs 10 are connected to the shell 1 through bolts;

[0026] The positioning frame 8 includes two mounting shells 800, each of which is provided with a mounting opening 804, and the crankshaft 5 passes through the positioning frame 8 through the mounting opening 804. The outer walls of the two mounting shells 800 are provided with mounting grooves 801, and the fixing ring 9 is located in the mounting groove 801, and the mounting shell 800 is connected to the fixing ring 9 by screws. An mounting cavity 802 is provided inside the mounting shell 800, and an adjusting sleeve 803 is installed in the mounting cavity 802. The adjusting sleeve 803 is connected to the mounting shell 800 through the supporting structure 11, and a locking structure is installed inside the adjusting sleeve 803, and the bearing 810 can be locked by the locking structure.

[0027] Embodiment 2:

[0028] See also Figure 4-7, based on the first embodiment, the upper and lower ends of the adjusting sleeve 803 are provided with a plurality of supporting structures 11, the supporting structures 11 include a telescopic rod 110, one end of the telescopic rod 110 is movably connected to the adjusting sleeve 803, and the other end is movably connected to the mounting shell 800, the outer sleeve of the telescopic rod 110 is provided with a reset spring 111, the outer wall of the adjusting sleeve 803 is provided with a plurality of sliding grooves 113, the inner part of the sliding groove 113 is slidably connected with a slider 112, the outer wall of the slider 112 is provided with a protruding block, the inner wall of the sliding groove 113 is provided with a groove, the protruding block is located in the groove, the end of the telescopic rod 110 close to the adjusting sleeve 803 is rotatably connected to the slider 112, the inner thread of the mounting shell 800 is connected with a connector 811, the upper end of the connector 811 passes through the top of the mounting shell 800, and the end of the connector 811 located outside the mounting shell 800 is threadedly connected with a nut, the telescopic rod 110 is rotatably connected with the connector 811;

[0029] The locking structure includes two clamping pads 805, and a plurality of positioning rods 806 are inserted in the adjusting sleeve 803. The clamping pad 805 is slidably connected to the positioning rods 806. A plurality of adjustment grooves 808 are provided at the upper end of the clamping pad 805, and an inclined surface is provided inside the adjusting groove 808. A threaded disk 807 is also provided above the adjusting sleeve 803, and a plurality of push rods 809 are fixedly connected to the lower end of the threaded disk 807. The push rods 809 are inserted in the adjusting groove 808. Two circular holes are provided at the upper end of the threaded disk 807, and the threaded disk 807 can be rotated conveniently through the circular holes.

[0030] The working principle of the present invention is:

[0031] When the present invention is used, when the crankshaft 5 deviates during rotation, the crankshaft 5 will drive the adjusting sleeve 803 to deviate in the installation cavity 802 through the bearing 810. When the adjusting sleeve 803 deviates, part of the telescopic rod 110 will be stretched, while part will be compressed (for example, the crankshaft 5 deviates to the right, and when the crankshaft 5 deviates to the right, it will drive the adjusting sleeve 803 to deviate together. At this time, the telescopic rod 110 on the left will be stretched, and the telescopic rod 110 on the right will be compressed). In this way, the adjusting sleeve 803 can be protected to prevent the adjusting sleeve 803 from contacting with the installation shell 800. At the same time, the movement of the adjusting sleeve 803 can drive the crankshaft 5 to interact with the bearing 810, thereby avoiding point-surface contact between the crankshaft 5 and the bearing 810, and preventing large friction between the crankshaft 5 and the bearing 810. In this way, the stability and service life of the crankshaft 5 and the bearing 810 can be increased.

[0032] When it is necessary to inspect and repair the positioning frame 8, the fixing ring 9 can be separated from the mounting shell 800 first, and then the nut on the connecting head 811 can be removed, and then the two mounting shells 800 can be separated, and then the threaded disk 807 can be rotated to move it upward. When the threaded disk 807 moves upward, the two clamping pads 805 will become loose, and the positioning frame 8 can be separated from the crankshaft 5. When the inspection and maintenance are completed, the adjusting sleeve 803 is put on the crankshaft 5 and then the threaded disk 807 is rotated to move the threaded disk 807 downward. When the threaded disk 807 moves downward, the clamping pad 805 will be pushed toward the direction of the bearing 810 through the pushing rod 809 (when the pushing rod 809 pushes the clamping pad 805 along the inclined surface of the adjusting groove 808, the clamping pad 805 will move inward), thereby locking the bearing 810. In this way, the crankshaft 5 can be connected to the positioning frame 8.

[0033] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A frame for a scroll compressor, comprising a housing (1), a crankshaft (5) and a positioning frame (8), characterized in that: The crankshaft (5) is provided with a positioning frame (8) on the outside, the crankshaft (5) is connected to the positioning frame (8) via a bearing (810), the crankshaft (5) can be positioned via the positioning frame (8), the positioning frame (8) is fixedly connected to the outside with a fixing ring (9), the fixing ring (9) is fixedly connected to the outside with a plurality of fixing legs (10), and the fixing legs (10) are connected to the housing (1) via bolts; The positioning frame (8) comprises two mounting shells (800), each of the two mounting shells (800) being provided with a mounting opening (804), the interior of the mounting shell (800) being provided with a mounting cavity (802), an adjustment sleeve (803) being installed in the mounting cavity (802), the adjustment sleeve (803) being connected to the mounting shell (800) via a supporting structure (11), and a locking structure being installed in the interior of the adjustment sleeve (803), and the bearing (810) can be locked via the locking structure.

2. A frame for a scroll compressor according to claim 1, characterized in that: A plurality of support structures (11) are provided at both the upper and lower ends of the adjustment sleeve (803), and the support structure (11) comprises a telescopic rod (110), one end of the telescopic rod (110) is movably connected to the adjustment sleeve (803), and the other end of the telescopic rod (110) is movably connected to the installation shell (800).

3. A frame for a scroll compressor according to claim 2, characterized in that: The exterior of the telescopic rod (110) is sleeved with a return spring (111).

4. A frame for a scroll compressor according to claim 2, characterized in that: A plurality of slide grooves (113) are provided on the outer wall of the adjustment sleeve (803), a slider (112) is slidably connected inside the slide groove (113), and one end of the telescopic rod (110) close to the adjustment sleeve (803) is rotatably connected to the slider (112).

5. A frame for a scroll compressor according to claim 2, characterized in that: The internal thread of the mounting shell (800) is connected to a connector (811), the upper end of the connector (811) passes through the top end of the mounting shell (800), and one end of the connector (811) located outside the mounting shell (800) is threadedly connected to a nut, and the telescopic rod (110) is rotatably connected to the connector (811).

6. A frame for a scroll compressor according to claim 1, characterized in that: The locking structure comprises two clamping pads (805), a plurality of positioning rods (806) are inserted into the adjusting sleeve (803), and the clamping pads (805) are slidably connected to the positioning rods (806).

7. A frame for a scroll compressor according to claim 6, characterized in that: The upper end of the clamping pad (805) is provided with a plurality of adjustment grooves (808), and an inclined surface is provided inside the adjustment grooves (808). A threaded disk (807) is also provided above the adjustment sleeve (803), and the lower end of the threaded disk (807) is fixedly connected with a plurality of push rods (809), and the push rods (809) are inserted into the adjustment grooves (808).

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