A two-section refined outer base

Abstract

The utility model discloses a two-section precision outer base, which relates to the technical field of coaxiality adjustment, including a precision outer base lower part and a precision outer base upper part, wherein the precision outer base lower part is arranged below the precision outer base upper part; a placement plate is arranged on the precision outer base upper part, and a piston is placed on the placement plate. When the coaxiality needs to be adjusted, the utility model opens the connection mechanism between the precision outer base lower part and the precision outer base upper part, loosens the bolts between the plug-in block and the plug-in slot, uses a small hammer to knock the precision outer base upper part, and at the same time uses a measuring meter to detect whether the coaxiality is within the qualified range. After adjustment, tighten the bolts between the plug-in block and the plug-in slot. Directly knocking the main shaft may cause its deformation or damage, and adjusting the coaxiality by adjusting the precision outer base upper part can avoid this situation. When the precision outer base upper part reaches the service life, only the precision outer base upper part needs to be replaced, which can reduce the cost of use.

Description

Technical Field

[0001] The utility model relates to the technical field of coaxiality adjustment, in particular to a two-section precision outer base. Background Art

[0002] Piston coaxiality adjustment usually refers to the process of adjusting the position of the piston in the cylinder in a piston refrigeration compressor to ensure that the piston is consistent with the center line of the cylinder. This process is called coaxiality adjustment, which is crucial to ensure the normal operation of the compressor and improve the refrigeration efficiency. When the center line of the piston and the cylinder do not coincide, the friction between the piston and the cylinder wall will increase, the efficiency will decrease, and it may even cause mechanical failure. Therefore, it is necessary to perform coaxiality adjustment regularly. When performing coaxiality adjustment, the operating procedures and safety guidelines of the equipment manufacturer should be strictly followed to ensure the effect of the adjustment and the safety of the operation;

[0003] In the prior art, a plug gauge or a dial indicator is generally used to measure the gap between the piston skirt and the inner diameter of the cylinder. The measurement is performed when the piston is in the middle of the compression stroke. Based on the measurement results, the direction and distance that the piston needs to be adjusted are determined. If the piston is biased upward, it needs to be adjusted downward; if the piston is biased to the left, it needs to be adjusted to the right. The position of the piston is slowly adjusted by the adjustment bolt or other adjustment mechanism on the piston until the correct coaxiality is achieved.

[0004] The shortcomings of the above scheme are: the adjustment of the piston coaxiality is complicated and time-consuming, and causes irreversible damage to the equipment. In addition, the movement of the equipment and the adjustment of the base may be affected by space limitations and the structural complexity of the equipment itself, resulting in the adjustment process becoming difficult and time-consuming. At the same time, the adjustment of the equipment and the base requires high precision. Any slight error may lead to poor adjustment effect, which may affect the performance of the equipment and the technical problems of service life. Utility Model Content

[0005] The purpose of the utility model is to provide a two-section precision external base to solve the technical problems in the prior art that the adjustment of the coaxiality of the piston is complicated, the cycle is long and irreversible damage is caused to the equipment, and the movement of the equipment and the adjustment of the base may be affected by space limitations and the structural complexity of the equipment itself, resulting in the adjustment process becoming difficult and time-consuming, which may affect the performance and service life of the equipment.

[0006] The technical problem to be solved by the utility model can be achieved through the following technical solutions:

[0007] A two-section fine outer base, comprising a fine outer base lower part and a fine outer base upper part, wherein the fine outer base lower part is arranged below the fine outer base upper part;

[0008] A placement plate is provided on the upper part of the precision outer base, a piston is placed on the placement plate, a pressure plate is provided above the piston, and an electric telescopic rod is connected to the end of the pressure plate away from the piston;

[0009] A connecting mechanism is provided between the upper part of the refined outer base and the lower part of the refined outer base;

[0010] The lower part of the precision outer base is connected with a pull nail, and the pull nail is connected to the main shaft of the upper part and the lower part of the precision outer base. The bottom of the lower part of the precision outer base is connected with two adjustment rods, and the end of the adjustment rod away from the lower part of the precision outer base is provided with an adjustment mechanism.

[0011] As a further solution of the utility model: a placement pad is provided on the placement board.

[0012] As a further solution of the utility model: the connecting mechanism includes a plug-in slot and a plug-in block, the plug-in slot is arranged on the lower part of the refined outer base, and the plug-in block is connected to an end of the upper part of the refined outer base away from the placement plate.

[0013] As a further solution of the utility model: the plug-in block is provided with a bolt hole, a bolt is connected in the bolt hole, and the plug-in slot is provided with a bolt hole matched with the bolt.

[0014] As a further solution of the utility model: the adjustment mechanism includes a fixed seat, the fixed seat is connected to the end of the adjustment rod away from the lower part of the precision outer base, the fixed seat is provided with a sleeve that is arranged to cooperate with the adjustment rod, the fixed seat is connected to the fixed rod, the fixed rod is slidably connected to the fixed rod, and the adjustment rod is provided with a plurality of plug-in holes that are arranged to cooperate with the plug-in rod.

[0015] As a further solution of the utility model: the fixing rod is an L-shaped rod.

[0016] Beneficial effects of the utility model:

[0017] 1. When the coaxiality needs to be adjusted, the utility model opens the connecting mechanism between the lower part of the precision outer base and the upper part of the precision outer base, loosens the bolts between the plug-in block and the plug-in slot, uses a small hammer to knock the upper part of the precision outer base, and at the same time uses a measuring meter to detect whether the coaxiality is within the qualified range. After adjustment, tighten the bolts between the plug-in block and the plug-in slot. Directly knocking on the main shaft may cause its deformation or damage, and adjusting the coaxiality by adjusting the upper part of the precision outer base can avoid this situation. When the upper part of the precision outer base reaches its service life, only the upper part of the precision outer base needs to be replaced, which can reduce the cost of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The utility model is further described below in conjunction with the accompanying drawings.

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the structure of the plug-in block in the utility model.

[0021] In the figure: 1. Piston; 2. Lower part of the precision outer base; 3. Upper part of the precision outer base; 4. Fixed seat; 5. Pull nail; 6. Plug-in groove; 7. Plug-in block; 8. Bolt hole; 9. Pressure plate; 10. Placement plate; 11. Adjustment rod; 12. Sleeve; 13. Plug-in rod; 15. Fixed rod. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] like Figure 1-Figure 2 As shown, a two-section precision base includes a precision base lower part 2 and a precision base upper part 3, wherein the precision base lower part 2 is arranged below the precision base upper part 3, a placement plate 10 is arranged on the precision base upper part 3, a placement pad is arranged on the placement plate 10, a piston 1 is placed on the placement plate 10, a pressure plate 9 is arranged above the piston 1, and an electric telescopic rod is connected to the end of the pressure plate 9 away from the piston 1;

[0024] A connecting mechanism is provided between the upper part 3 of the precision outer base and the lower part 2 of the precision outer base, and the connecting mechanism includes a plug-in slot 6 and a plug-in block 7. The plug-in slot 6 is provided on the lower part 2 of the precision outer base, and the plug-in block 7 is connected to one end of the upper part 3 of the precision outer base away from the placement plate 10. A bolt hole 8 is provided on the plug-in block 7, and a bolt is connected in the bolt hole 8. The plug-in slot 6 is provided with a bolt hole 8 that is provided in cooperation with the bolt.

[0025] The lower part 2 of the precision outer base is connected with a rivet 5, and the rivet 5 is connected to the main axis of the upper part 3 of the precision outer base and the lower part 2 of the precision outer base. Two adjusting rods 11 are connected to the bottom of the lower part 2 of the precision outer base, and an adjusting mechanism is provided at the end of the adjusting rod 11 away from the lower part 2 of the precision outer base; the adjusting mechanism includes a fixed seat 4, and the fixed seat 4 is connected to the end of the adjusting rod 11 away from the lower part 2 of the precision outer base, and a sleeve 12 is provided inside the fixed seat 4 to cooperate with the adjusting rod 11. A fixing rod 15 is connected to the fixed seat 4, and a plug-in rod 13 is slidably connected inside the fixing rod 15. The adjusting rod 11 is provided with a plurality of plug-in holes to cooperate with the plug-in rod 13, and the fixing rod 15 is an L-shaped rod.

[0026] The working principle of the utility model is as follows: when using the device, since the rivet 5 is connected with the main shaft of the fine outer base upper part 3 and the fine outer base lower part 2, the piston 1 is placed on the placement plate 10 on the fine outer base upper part 3. After the placement is completed, the pressure plate 9 above the piston 1 is pushed down by the electric telescopic rod to fix the piston 1 between the pressure plate 9 and the placement plate 10. When the coaxiality needs to be adjusted, the connection mechanism between the fine outer base lower part 2 and the fine outer base upper part 3 is opened, the bolts between the plug-in block 7 and the plug-in slot 6 are loosened, and the fine outer base upper part 3 is knocked with a small hammer. At the same time, the coaxiality is detected by a measuring meter to see whether it is within the qualified range. After adjustment, the bolts between the plug-in block 7 and the plug-in slot 6 are tightened. Since directly knocking on the main shaft may cause its deformation or damage, this situation can be avoided by adjusting the coaxiality of the fine outer base upper part 3. When the fine outer base upper part 3 reaches its service life, only the fine outer base upper part 3 needs to be replaced, which can reduce the cost of use.

[0027] When in use, the adjusting rod 11 can also be moved up and down. The adjusting rod 11 moves up and down in the sleeve 12, driving the position of the lower part 2 of the precision outer base to move up and down, and adjusting the height of the lower part 2 of the precision outer base. After adjusting to a suitable position, the plug-in rod 13 is inserted into the plug-in hole on the adjusting rod 11 through the fixing rod 15 to fix the position of the adjusting rod 11.

[0028] The above is a detailed description of an embodiment of the utility model, but the content is only a preferred embodiment of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of application of the utility model should still fall within the scope of the patent coverage of the utility model.

Claims

1. A two-section precision base, comprising a precision base lower part (2) and a precision base upper part (3), wherein the precision base lower part (2) is arranged below the precision base upper part (3); characterized in that: A placement plate (10) is provided on the upper part (3) of the precision outer base, a piston (1) is placed on the placement plate (10), a pressure plate (9) is provided above the piston (1), and an electric telescopic rod is connected to one end of the pressure plate (9) away from the piston (1); A connecting mechanism is provided between the upper part (3) of the fine outer base and the lower part (2) of the fine outer base; A rivet (5) is connected to the lower part (2) of the precision outer base, and the rivet (5) is connected to the main shaft of the upper part (3) of the precision outer base and the lower part (2) of the precision outer base. Two adjustment rods (11) are connected to the bottom of the lower part (2) of the precision outer base, and an adjustment mechanism is provided at one end of the adjustment rod (11) away from the lower part (2) of the precision outer base.

2. A two-section fine outer base according to claim 1, characterized in that: The placement plate (10) is provided with a placement pad.

3. A two-section fine outer base according to claim 1, characterized in that: The connection mechanism comprises a plug-in slot (6) and a plug-in block (7); the plug-in slot (6) is arranged on the lower part (2) of the precision outer base; and the plug-in block (7) is connected to an end of the upper part (3) of the precision outer base away from the placement plate (10).

4. A two-section fine outer base according to claim 3, characterized in that: The plug-in block (7) is provided with a bolt hole (8), a bolt is connected in the bolt hole (8), and the plug-in slot (6) is provided with a bolt hole (8) that cooperates with the bolt.

5. The two-section fine outer base according to claim 1, characterized in that: The adjustment mechanism comprises a fixed seat (4), the fixed seat (4) being connected to an end of an adjustment rod (11) away from a lower portion (2) of a precision outer base, a sleeve (12) being arranged inside the fixed seat (4) and cooperating with the adjustment rod (11), a fixed rod (15) being connected to the fixed seat (4), a plug-in rod (13) being slidably connected inside the fixed rod (15), and a plurality of plug-in holes being arranged cooperating with the plug-in rod (13) being arranged on the adjustment rod (11).

6. A two-section fine outer base according to claim 5, characterized in that: The fixing rod (15) is an L-shaped rod.

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