Plane self-centering floating mechanism

Abstract

The utility model discloses a plane self-centering floating mechanism, and mainly relates to the related technical field of compressor part detection. The device comprises a measuring head seat, a breather pipe is sleeved in the measuring head seat, a plurality of hoodle discs are sleeved on the breather pipe, a plurality of hoodles are arranged in the hoodle discs, and the hoodle discs are arranged between the measuring head seat and the breather pipe, so that the whole structure of the breather pipe can rotate around the axes of the hoodle discs; a measuring head is mounted at the end part of the breather pipe; a plurality of elastic blocks are arranged on the outer wall of the measuring head seat in the circumferential direction, a plurality of square hole grooves are formed in the outer wall of the measuring head seat in the circumferential direction in an array mode, and the elastic blocks are embedded in the square hole grooves; according to the utility model, the measuring head can be ensured to smoothly enter a small crankshaft hole with a smaller fit clearance for measurement, and the measuring head can be ensured to be smoothly pulled out after measurement without taking up a workpiece.

Description

Technical Field

[0001] The utility model relates to the technical field related to compressor parts detection, and more specifically, it relates to a plane self-centering floating mechanism for a pneumatic measuring instrument probe of a fully enclosed compressor crankshaft hole. Background Art

[0002] The simple working principle of a general refrigerator compressor is that the motor drives the crankshaft to rotate, and the rotation of the crankshaft causes the crank on the crankshaft to drive the piston to make reciprocating linear motion in the cylinder through the connecting rod. It inhales low-temperature and low-pressure refrigerant gas from the intake pipe, compresses it through the motor, and discharges high-temperature and high-pressure refrigerant gas to the exhaust pipe, providing power for the refrigeration cycle, thereby realizing the refrigeration cycle of compression → condensation → expansion → evaporation (heat absorption).

[0003] As mentioned above, the rotation of the crankshaft is an important and critical form of movement in the refrigerator compressor. Although its rotation is involved in lubricating oil, it will still have a certain amount of wear. Whether the crankshaft rotates smoothly will directly affect the energy consumption and life of the compressor. Therefore, the matching clearance between the crankshaft hole on the crankcase and the crankshaft is very important. In the assembly workshop, how to accurately measure the size of the crankshaft hole so that it can match the corresponding crankshaft and make this clearance within the standard range is an important test for the workshop and employees. A slight mistake will cause the crankshaft to wear seriously or get stuck, resulting in the scrapping of the entire compressor. The compressor is the "heart" of the refrigerator, and the "stopping of the compressor" also means that the refrigerator has lost its "precious life."

[0004] In order to reduce the above-mentioned defective products, a plane self-centering floating mechanism for measuring the crankshaft hole of a fully enclosed compressor is designed. Utility Model Content

[0005] The utility model overcomes the shortcomings of the above-mentioned technology and provides a plane self-centering floating mechanism, which can ensure that the probe can smoothly enter the small crankshaft hole with a small matching clearance for measurement, and can also ensure that it can be smoothly pulled out after measurement without lifting the workpiece.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions: a planar self-centering floating mechanism, including a probe seat, a ventilation pipe is provided inside the probe seat, a plurality of pinball disks are provided on the ventilation pipe, a plurality of pinball disks are installed in the pinball disks, and the pinball disks are located between the probe seat and the ventilation pipe, so that the overall structure of the ventilation pipe can rotate around the axis of the pinball disk; a probe is installed on the end of the ventilation pipe.

[0007] The utility model provides a plane self-centering floating measuring mechanism. When measuring, the probe can maintain the centering ability of the vent pipe and the probe through the auxiliary effect of the pinball disk in the probe seat, and at the same time ensure that the probe has a certain flexibility to avoid being out of center with the workpiece. Therefore, the probe can smoothly enter the small crankshaft hole with a small matching clearance for measurement, and can ensure that it can be smoothly pulled out after measurement without lifting the workpiece, and also ensure that the workpiece will not be scratched during the measurement process.

[0008] Preferably, a plurality of spring blocks are provided on the outer wall of the probe seat in a circumferential direction, and a plurality of square holes are provided in an array on the outer wall of the probe seat in a circumferential direction, and the spring blocks are embedded in the square holes. There are six spring blocks in total, which are respectively embedded in the square holes connected to the vent pipe installation cavity, and the spring blocks can further improve the centering ability and flexibility of the vent pipe and the probe.

[0009] Preferably, the spring block includes a mounting body and a plurality of mounting plates spaced apart on the surface of the mounting body. There are three mounting plates, which are spaced apart on the wall of the mounting body; the mounting plates can limit the maximum embedding depth of the mounting body, and through the cooperation of a plurality of spring blocks and the vent pipe, the probe on the vent pipe can maintain concentricity with the workpiece during measurement, thereby achieving accurate measurement of the crankshaft hole; at the same time, each spring block has a certain degree of flexibility, and cooperates with the vent pipe to ensure that it can be smoothly pulled out after measurement without lifting the workpiece, and also ensure that the workpiece is not scratched during the measurement process.

[0010] Preferably, the probe seat is in the shape of a syringe, a vent pipe installation cavity is provided in the first side end face of the probe seat, the cross section of the vent pipe installation cavity is a circular cross section, and a through hole 1 is provided on the bottom wall of the vent pipe installation cavity. The probe seat is the basic frame of the plane self-centering mechanism, and the design of the vent pipe installation cavity and the through hole 1 can enable the vent pipe installed therein and the probe on the vent pipe to achieve accurate measurement in a small crankshaft hole with a small matching clearance, while also enabling it to have a certain degree of flexibility.

[0011] Preferably, the vent pipe comprises a cylinder body 1, and a cylinder body 2 in an annular structure is arranged on the outer wall of the cylinder body 1, and the outer diameter of the cylinder body 2 is between the inner diameter of the through hole 1 and the diameter of the circular cross section of the vent pipe installation cavity; the outer diameter of the cylinder body 1 is smaller than the inner diameter of the through hole 1. A vent cavity is arranged inside the cylinder body 1, which is convenient for the installation and matching of the solid and the pinball disk and the probe seat.

[0012] Preferably, the pinball disk is installed at the upper and lower positions of the second cylinder body, and a plurality of pinball installation holes are arranged in a circumferential array on the pinball disk, and the pinballs are installed in the pinball installation holes. There are eight installation holes in total, and the pinball disk of this structure can play a role in maintaining the centering of the probe.

[0013] Preferably, a bottom cover is provided in the ventilation pipe installation cavity in the probe seat, which is used for limiting and fixing the ventilation pipe in the probe seat.

[0014] Preferably, the probe comprises a probe body and a limiter disposed on the probe body, and is used for installation, coordination and measurement with the vent pipe.

[0015] Compared with the prior art, the beneficial effects of the utility model are: (1) by installing a marble disk to assist the vent pipe, the probe on the vent pipe can be kept concentric with the workpiece during measurement, thereby achieving accurate measurement of the crankshaft hole and ensuring a certain flexibility of the vent pipe; (2) because the spring block installed on the probe seat has a certain flexibility, in conjunction with the vent pipe, it can further ensure that the probe can be smoothly pulled out after measurement without lifting the workpiece, and can also ensure that the workpiece is not scratched during the measurement process. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of a plane self-centering floating mechanism of the utility model;

[0017] Figure 2 It is a cross-sectional view of a plane self-centering floating mechanism of the utility model;

[0018] Figure 3 It is a structural schematic diagram of the probe base of the utility model;

[0019] Figure 4 It is a structural schematic diagram of the bullet block of the utility model;

[0020] Figure 5 It is a structural schematic diagram of the pinball disk of the utility model;

[0021] In the figure: probe base 100; ventilation pipe mounting cavity 101; through hole 102; annular groove 103; square hole groove 104; ventilation pipe 200; cylinder 1 201; cylinder 2 202; pinball plate 300; pinball mounting hole 301; pinball 302; bottom cover 400; probe 500; probe body 501; limit body 502; inclined chamfer 503; spring block 600; mounting body 601; mounting plate 602. DETAILED DESCRIPTION

[0022] The following is a further detailed description of the technical solution of the utility model through specific embodiments and in conjunction with the accompanying drawings: Embodiment 1: See the attached Figure 1 To Attachment Figure 5A plane self-centering floating mechanism includes a probe seat 100, a vent pipe 200 is sleeved in the probe seat 100, a group of pinball discs 300 are sleeved on the upper and lower sides of the vent pipe 200, the pinball disc 300 is processed from H62 brass into a round disc similar to a round cake, the vent pipe 200 for installing the pinball disc 300 is arranged in the probe seat 100, and a bottom cover 400 is installed on the probe seat 100 at the bottom of the vent pipe 200; with the inner and outer diameter axis of the pinball disc 300 as the center, There are eight marble installation holes 301 that pass through from top to bottom in a circumferential array on the pinball disk 300. Each of the marble installation holes 301 on the pinball disk 300 is provided with a marble 302 with a spherical structure. A probe 500 is installed on the end of the ventilation pipe 200, so that the overall structure of the ventilation pipe 200 can be rotated around the center of the pinball disk 300, thereby ensuring the flexibility of the probe; the ventilation pipe is a transition component, one end of which is an external thread and the other end is an internal thread, which are respectively connected to the probe and the air pipe joint to achieve the purpose of ventilation measurement by the probe.

[0023] The probe seat 100 is in the shape of a syringe, and a ventilating tube installation cavity 101 is provided in the first side end surface of the probe seat 100, and the cross section of the ventilating tube installation cavity 101 is a circular cross section, and a through hole 102 is provided on the bottom wall of the ventilating tube installation cavity 101, and the through hole 102 is connected with the second side end surface of the probe seat 100, and the outer diameter of the through hole 102 is smaller than the inner diameter of the circular cross section of the ventilating tube installation cavity 101; the ventilating tube 200 includes a cylinder with an inner ventilating cavity The outer wall of the cylinder 201 is provided with a cylinder 202 of an annular structure, the outer diameter of the cylinder 201 is smaller than the outer diameter of the cylinder 202, and the outer diameter of the cylinder 202 is between the circular inner diameter of the through hole 102 and the vent installation cavity 101. There are two groups of pinball discs 300, which are respectively arranged at the upper and lower positions of the cylinder 202; the outer diameter of one end of the cylinder 201 is smaller than the outer diameter of the through hole 102. An annular groove 103 is arranged in the wall of the vent installation cavity 101 on the side away from the through hole 102, and the bottom cover 400 can be limited in position away from the vent 200 by a snap ring structure arranged in the annular groove 103, and the bottom cover 400 adopts an O-type fixing ring structure.

[0024] There is a certain gap between the through hole 102 and the cylinder 1 201 on the ventilation tube 200 , so that the ventilation tube 200 can ensure a small range of flexible movement relative to the probe base 100 .

[0025] Working process:

[0026] The utility model provides a plane self-centering floating measuring mechanism. When measuring, the probe 500 can maintain the centering ability of the vent 200 and the probe 500 through the auxiliary effect of the pinball disk 300 in the probe seat 100, and at the same time ensure that the probe 500 has a certain flexibility to avoid being out of center with the workpiece. In this way, it is ensured that the probe 500 can smoothly enter the small crankshaft hole with a small matching clearance for measurement, and can ensure that it can be smoothly pulled out after measurement without lifting the workpiece, and also ensure that the workpiece will not be scratched during the measurement process.

[0027] Embodiment 2:

[0028] See attached Figure 1 To Attachment Figure 5 This embodiment is a further improvement on the plane self-centering floating mechanism based on the specific embodiment 1, as follows:

[0029] The present invention comprises a probe base 100, wherein a vent pipe 200 is sleeved in the probe base 100, and a group of pinball disks 300 are sleeved on the upper and lower sides of the vent pipe 200. The pinball disk 300 is processed from H62 brass into a round disk similar to a round cake, and the vent pipe 200 for installing the pinball disk 300 is arranged in the probe base 100, and a bottom cover 400 is installed on the probe base 100 at the bottom of the vent pipe 200; with the inner and outer diameter axis of the pinball disk 300 as the center, a circumferential array of pinball disks 300 is arranged on the pinball disk 300. There are eight circular marble installation holes 301 that pass through from top to bottom, and each of the circular marble installation holes 301 on the marble disk 300 is provided with a marble 302 with a spherical structure. A probe 500 is installed on the end of the ventilation pipe 200, so that the overall structure of the ventilation pipe 200 can be rotated around the center of the marble disk 300, thereby ensuring the flexibility of the probe; the ventilation pipe is a transition component, one end of which is an external thread and the other end is an internal thread, which are respectively connected to the probe and the air pipe joint to achieve the purpose of probe ventilation measurement.

[0030] The probe seat 100 is in the shape of a syringe, and a ventilating tube installation cavity 101 is provided in the first side end surface of the probe seat 100, and the cross section of the ventilating tube installation cavity 101 is a circular cross section, and a through hole 102 is provided on the bottom wall of the ventilating tube installation cavity 101, and the through hole 102 is connected with the second side end surface of the probe seat 100, and the outer diameter of the through hole 102 is smaller than the inner diameter of the circular cross section of the ventilating tube installation cavity 101; the ventilating tube 200 includes a cylinder with an inner ventilating cavity The outer wall of the cylinder 201 is provided with a cylinder 202 of an annular structure, the outer diameter of the cylinder 201 is smaller than the outer diameter of the cylinder 202, and the outer diameter of the cylinder 202 is between the circular inner diameter of the through hole 102 and the vent installation cavity 101. There are two groups of pinball discs 300, which are respectively arranged at the upper and lower positions of the cylinder 202; the outer diameter of one end of the cylinder 201 is smaller than the outer diameter of the through hole 102. An annular groove 103 is arranged in the wall of the vent installation cavity 101 on the side away from the through hole 102, and the bottom cover 400 can be limited in position away from the vent 200 by a snap ring structure arranged in the annular groove 103, and the bottom cover 400 adopts an O-type fixing ring structure.

[0031] There is a certain gap between the through hole 102 and the cylinder 1 201 on the ventilation tube 200 , so that the ventilation tube 200 can ensure a small range of flexible movement relative to the probe base 100 .

[0032] Six square holes 104 are arranged in a circumferential array on the outer wall of the probe base 100, and the six square holes 104 are all connected to the ventilation pipe installation cavity 101 where the ventilation pipe 200 is installed. A spring block 600 is embedded in the square hole 104 on the outer wall of the probe base 100; the spring block 600 includes a mounting body 601 and three groups of mounting pieces 602 spaced apart on the surface of the mounting body 601, wherein the mounting body 601 is embedded in the square hole 104, and the mounting piece 602 is used for the installation limit of the spring block 600, and a part of the mounting body 601 extends into the ventilation pipe installation cavity 101, so that the ventilation pipe 200 can be located at the axial center position in the ventilation pipe installation cavity 101, thereby achieving the function of maintaining the floating and centering of the ventilation pipe 200 in the probe base 100;

[0033] Among them, the mounting pieces 602 are respectively arranged at intervals on the wall of the mounting body 601; the mounting pieces 602 can limit the maximum embedding depth of the mounting body 601, and through the cooperation of each of the spring blocks 600 and the ventilation pipe 200, the probe 500 on the ventilation pipe 200 can maintain concentricity with the workpiece during measurement, thereby achieving accurate measurement of the crankshaft hole; at the same time, each of the spring blocks 600 has a certain flexibility, and cooperates with the ventilation pipe 200 to ensure that it can be smoothly pulled out after measurement without lifting the workpiece, and also ensure that the workpiece is not scratched during the measurement process.

[0034] Working process:

[0035] The utility model provides a planar self-centering floating measuring mechanism. When measuring, the probe 500 can maintain the centering ability of the vent 200 and the probe 500 through the auxiliary effect of the pinball disk 300 in the probe base 100, and at the same time ensure that the probe 500 has a certain flexibility to avoid being out of center with the workpiece; the spring block 600 on the probe base 100 can make the vent 200 be located in the center position in the vent installation cavity 101, and make the outer wall of the pinball disk 300 break away from the vent installation cavity 101, thereby increasing the flexibility of the pinball disk 300 and the vent 200 arranged in the pinball disk 300, thereby further improving the centering ability and centering effect of the vent 200 in the probe base 100. This ensures that the probe 500 can smoothly enter the small crankshaft hole with a small matching clearance for measurement, and can also ensure that it can be smoothly pulled out after measurement without lifting the workpiece, and can also ensure that the workpiece is not scratched during the measurement process.

[0036] Embodiment 3:

[0037] See attached Figure 1 To Attachment Figure 5A plane self-centering floating measuring mechanism comprises a probe seat 100, a vent pipe 200 and a probe 500, wherein the probe seat 100 is provided with a vent pipe 200, and a group of pinball disks 300 are provided on both the upper and lower sides of the vent pipe 200, and the pinball disk 300 is processed from H62 brass into a round disk similar to a round cake, and the vent pipe 200 for installing the pinball disk 300 is arranged in the probe seat 100, and a bottom cover 400 is installed on the probe seat 100 at the bottom of the vent pipe 200; with the inner and outer diameter axis of the pinball disk 300 as the center, eight circular pinball installation holes 300 are arranged in a circumferential array on the pinball disk 300, which are connected vertically. 1. Each of the circular marble installation holes 301 on the pinball disk 300 is provided with a spherical marble 302. A probe 500 is installed on the end of the ventilation pipe 200, so that the overall structure of the ventilation pipe 200 can be rotated around the center of the pinball disk 300, thereby ensuring the flexibility of the probe; the ventilation pipe is a transition component, one end of which is externally threaded and the other end is internally threaded, respectively connected to the probe and the air pipe joint, so as to achieve the purpose of ventilation measurement by the probe; the probe 500 includes a probe body 501 and a limiting body 502 arranged on the probe body 501; an inclined chamfer 503 is provided on the outer wall of the probe body 501 at one end away from the limiting body 502.

[0038] The probe seat 100 is in the shape of a syringe, and a ventilating tube installation cavity 101 is provided in the first side end surface of the probe seat 100, and the cross section of the ventilating tube installation cavity 101 is a circular cross section, and a through hole 102 is provided on the bottom wall of the ventilating tube installation cavity 101, and the through hole 102 is connected with the second side end surface of the probe seat 100, and the outer diameter of the through hole 102 is smaller than the inner diameter of the circular cross section of the ventilating tube installation cavity 101; the ventilating tube 200 includes a cylinder with an inner ventilating cavity The outer wall of the cylinder 201 is provided with a cylinder 202 of an annular structure, the outer diameter of the cylinder 201 is smaller than the outer diameter of the cylinder 202, and the outer diameter of the cylinder 202 is between the circular inner diameter of the through hole 102 and the vent installation cavity 101. There are two groups of pinball discs 300, which are respectively arranged at the upper and lower positions of the cylinder 202; the outer diameter of one end of the cylinder 201 is smaller than the outer diameter of the through hole 102. An annular groove 103 is arranged in the wall of the vent installation cavity 101 on the side away from the through hole 102, and the bottom cover 400 can be limited in position away from the vent 200 by a snap ring structure arranged in the annular groove 103, and the bottom cover 400 adopts an O-type fixing ring structure.

[0039] There is a certain gap between the through hole 102 and the cylinder 1 201 on the ventilation tube 200 , so that the ventilation tube 200 can ensure a small range of flexible movement relative to the probe base 100 .

[0040] Six square holes 104 are arranged in a circumferential array on the outer wall of the probe base 100, and the six square holes 104 are all connected to the ventilation pipe installation cavity 101 where the ventilation pipe 200 is installed. A spring block 600 is embedded in the square hole 104 on the outer wall of the probe base 100; the spring block 600 includes a mounting body 601 and three groups of mounting pieces 602 spaced apart on the surface of the mounting body 601, wherein the mounting body 601 is embedded in the square hole 104, and the mounting piece 602 is used for the installation limit of the spring block 600, and a part of the mounting body 601 extends into the ventilation pipe installation cavity 101, so that the ventilation pipe 200 can be located at the axial center position in the ventilation pipe installation cavity 101, thereby achieving the function of maintaining the floating and centering of the ventilation pipe 200 in the probe base 100;

[0041] Among them, the mounting pieces 602 are respectively arranged at intervals on the wall of the mounting body 601; the mounting pieces 602 can limit the maximum embedding depth of the mounting body 601, and through the cooperation of each of the spring blocks 600 and the ventilation pipe 200, the probe 500 on the ventilation pipe 200 can maintain concentricity with the workpiece during measurement, thereby achieving accurate measurement of the crankshaft hole; at the same time, each of the spring blocks 600 has a certain flexibility, and cooperates with the ventilation pipe 200 to ensure that it can be smoothly pulled out after measurement without lifting the workpiece, and also ensure that the workpiece is not scratched during the measurement process.

[0042] The above-described embodiments are only preferred solutions of the present invention and are not intended to limit the present invention in any form. Other variations and modifications are possible without exceeding the technical solutions described in the claims.

Claims

1. A planar self-centering floating mechanism, characterized in that: It includes a probe seat, a ventilation pipe is arranged inside the probe seat, a plurality of pinball discs are arranged on the ventilation pipe, a plurality of pinball discs are installed in the pinball discs, and the pinball discs are located between the probe seat and the ventilation pipe, so that the overall structure of the ventilation pipe can rotate around the axis of the pinball discs; a probe is installed on the end of the ventilation pipe.

2. A planar self-centering floating mechanism according to claim 1, characterized in that: A plurality of spring blocks are arranged circumferentially on the outer wall of the probe seat, and a plurality of square hole grooves are arranged in an array circumferentially on the outer wall of the probe seat, and the spring blocks are embedded in the square hole grooves.

3. A planar self-centering floating mechanism according to claim 2, characterized in that: The elastic block comprises a mounting body and a plurality of mounting pieces which are arranged at intervals on the surface of the mounting body.

4. A planar self-centering floating mechanism according to claim 1, characterized in that: The probe seat is in the shape of a syringe, and a vent pipe installation cavity is provided in the first side end surface of the probe seat. The cross section of the vent pipe installation cavity is a circular cross section, and a through hole 1 is provided on the bottom wall of the vent pipe installation cavity.

5. A planar self-centering floating mechanism according to claim 4, characterized in that: The ventilation pipe includes a cylinder body 1, on the outer wall of which is provided a cylinder body 2 in an annular structure, the outer diameter of which is between the inner diameter of the through hole 1 and the diameter of the circular cross section of the ventilation pipe installation cavity; the outer diameter of the cylinder body 1 is smaller than the inner diameter of the through hole 1.

6. A planar self-centering floating mechanism according to claim 1, characterized in that: The pinball disc is installed at the upper and lower positions of the second cylinder body. A plurality of pinball installation holes are arranged in a circumferential array on the pinball disc, and the pinballs are installed in the pinball installation holes.

7. A planar self-centering floating mechanism according to any one of claims 1 to 6, characterized in that: A bottom cover is arranged in the vent pipe installation cavity in the probe seat.

8. A planar self-centering floating mechanism according to claim 7, characterized in that: The probe comprises a probe body and a limiting body arranged on the probe body.

Images