Force measuring device for locking circlip for hole

Abstract

The utility model discloses a hole locking circlip force measuring device, which comprises a support assembly, a positioning piece and a detection assembly, and is characterized in that the support assembly comprises a support and a mounting seat positioned in the circumferential direction of the support, and the mounting seat can slide relative to the support so as to be close to and far away from the center of the support; a limiting groove capable of abutting against the elastic check ring is formed in the side, facing the center of the support, of the installation base. The positioning piece is movably connected to the support and can abut against the installation base. The detection assembly is connected to the two ends of the elastic check ring in the extending direction of the elastic check ring and abuts against the periphery of the elastic check ring through the limiting groove of the installation base, so that the elastic check ring is in the use state, the detection assembly reads for the first time, then the positioning piece is released, the elastic check ring recovers to the natural state, and the detection assembly reads for the second time. The elastic force corresponding to the elastic check ring in the use state can be measured through the difference value of the two readings of the detection assembly, and therefore the elastic force of the elastic check ring for the hole can be detected.

Description

Technical Field

[0001] The utility model relates to the technical field of elastic circlip force testing, in particular to a locking elastic circlip force measuring device for a hole. Background Art

[0002] Hole elastic retaining ring is a common mechanical fastener, usually formed by winding linear profiles and assembled in hole grooves to limit axial movement of bearings or parts. It can be widely used in the fields of shipbuilding, automobiles, petroleum, electronics, machinery, aerospace, etc. It is a simple positioning and fixing element.

[0003] Among them, the elasticity of the retaining ring is the most important parameter for its ability to limit axial movement. If the actual elastic force does not meet the standard, it will cause the bearing to move back and forth on the shaft, affecting the operation of the entire sleeve and posing a huge hidden danger to normal use.

[0004] Before a product leaves the factory, it's essential to test the elasticity of retaining rings. Existing technical requirements for retaining rings state that the method for testing elasticity is to clamp the ring in question with a pliers, expand or compress the aperture by 10% of the design value five times, and then check for deformation of the inner and outer diameters. However, this method only verifies the conformity of the retaining ring and lacks a specific numerical value for the ring's elasticity. Furthermore, the testing process places high demands on the inspector, and improper force application can lead to breakage or damage of the ring.

[0005] Therefore, how to provide a testing device that simulates the actual use conditions of the product to detect the elastic force of the elastic retaining ring for holes is a technical problem that technical personnel in this field currently need to solve. Utility Model Content

[0006] The utility model aims to provide a force measuring device for a locking elastic retaining ring for a hole, so as to detect the elastic force of the elastic retaining ring for the hole.

[0007] To achieve the above-mentioned purpose, the utility model provides a force measuring device for a locking elastic retaining ring for a hole, comprising:

[0008] The bracket assembly includes a bracket and a mounting seat located circumferentially of the bracket. The mounting seat can slide relative to the bracket to move closer to and away from the center of the bracket. A limiting groove capable of abutting against an elastic retaining ring is provided on the side of the mounting seat facing the center of the bracket.

[0009] A positioning member is movably connected to the bracket and is located on a side of the mounting seat away from the elastic retaining ring, and the positioning member can abut against the mounting seat;

[0010] The detection component is connected to the two ends of the elastic retaining ring in its own extension direction to detect the elastic force of the elastic retaining ring.

[0011] Preferably, the detection assembly includes a sensor for measuring elastic force and two clamps with one end connected to the opposite direction of the sensor, and the other ends of the two clamps are respectively connected to the end of the elastic retaining ring in its own extension direction, so that when the contracted elastic retaining ring expands outward to restore its original shape, the clamps are driven to pull the sensor.

[0012] Preferably, the bracket includes a first crossbar and a second crossbar that are perpendicular to each other, and the centers of the first crossbar and the second crossbar overlap to form a cross-shaped bracket.

[0013] Preferably, the first crossbar and the second crossbar are both rod-shaped structures;

[0014] The mounting seat is provided with a through hole so that the mounting seat is sleeved on both ends of the first cross bar and the second cross bar, and the mounting seat can move along the extending direction of the first cross bar or the second cross bar.

[0015] Preferably, the ends of the first crossbar and the second crossbar are provided with threaded sections;

[0016] The positioning member is a cylindrical structure, and an end of the positioning member away from the mounting seat is provided with an internal thread adapted to the threaded section. The positioning member sleeved on the first cross bar or the second cross bar can rotate to abut against the mounting seat.

[0017] Preferably, the mounting seat is an L-shaped structure including a through portion and a raised portion, the through portion is provided with a through hole, all the raised portions are located on one side of the bracket, and the positioning piece can abut against the raised portion, and the side of the raised portion facing away from the positioning piece is partially concave to form a limiting groove.

[0018] Preferably, the limiting groove is an arc-shaped groove.

[0019] Preferably, lubricant is provided between the through hole and the first cross bar and between the through hole and the second cross bar.

[0020] Preferably, both the first crossbar and the second crossbar are provided with scale marks to determine the distance between the circlip and the center of the bracket.

[0021] Compared with the above-mentioned background technology, the present invention provides a locking elastic ring force measuring device for holes, which includes a bracket assembly, a positioning member and a detection assembly. The bracket assembly includes a bracket and a mounting seat located in the circumference of the bracket. The mounting seat can slide relative to the bracket to approach and move away from the center of the bracket. A limiting groove that can abut against the elastic ring is provided on the side of the mounting seat facing the center of the bracket; the positioning member is movably connected to the bracket, and the positioning member is located on the side of the mounting seat away from the elastic ring, and the positioning member can abut against the mounting seat; the detection assembly is connected to the two ends of the elastic ring in its own extension direction to detect the elastic force of the elastic ring.

[0022] Specifically, the bracket is placed on a horizontal plane, and then the elastic retaining ring is installed to the corresponding position. The limiting groove of the mounting seat is abutted against the outer periphery of the elastic retaining ring to limit the position of the elastic retaining ring so that the elastic retaining ring is in use. The positioning piece is installed to the side of the mounting seat away from the elastic retaining ring to limit the movement of the mounting seat. The detection component takes the first reading, and then the positioning piece is released. The elastic retaining ring returns to its natural state, and the detection component takes the second reading. The difference between the two readings of the detection component can be used to measure the corresponding elastic force of the elastic retaining ring in this use state, thereby realizing the detection of the elastic force of the elastic retaining ring for the hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0024] Figure 1 This is a schematic structural diagram of a force measuring device for a locking circlip for a hole provided in an embodiment of the utility model.

[0025] in:

[0026] 1- bracket, 11- first crossbar, 12- second crossbar, 13- scale mark;

[0027] 2-Mounting seat;

[0028] 3-Elastic retaining ring

[0029] 4- positioning piece;

[0030] 5-Sensor;

[0031] 6-Clamp. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] In order to enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0034] In the description of the present invention, it should be understood that the terms "outside", "inside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the position or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation of the present invention.

[0035] The utility model aims to provide a force measuring device for a locking elastic retaining ring for a hole, so as to detect the elastic force of the elastic retaining ring for the hole.

[0036] See also Figure 1 To achieve the above-mentioned purpose, the present invention provides a force measuring device for a locking elastic retaining ring 3 for a hole, comprising a bracket assembly, a positioning member 4 and a detection assembly.

[0037] The bracket assembly includes a bracket 1 and a mounting base 2 located circumferentially of the bracket 1. The mounting base 2 can slide relative to the bracket 1 to move closer to and away from the center of the bracket 1. A limiting groove capable of abutting against an elastic circlip 3 is provided on the side of the mounting base 2 facing the center of the bracket 1.

[0038] In this embodiment, the mounting seat 2 is abutted against the elastic retaining ring 3 through the limiting groove. Usually, the elastic retaining ring 3 is an annular open structure. The elastic retaining ring 3 has a certain deformation ability, that is, the elastic retaining ring 3 can expand or compress radially. By setting the limiting groove and the limiting groove abutting the outer side of the elastic retaining ring 3, the mounting seat 2 can limit the initial position of the elastic retaining ring 3.

[0039] In some embodiments, the limiting groove can also be set in the middle of the mounting seat 2, and the limiting groove has abutment surfaces on both sides in the radial direction. The abutment surface on the outer side can drive the elastic retaining ring 3 to contract radially, and the abutment surface on the inner side can drive the elastic retaining ring 3 to expand outward.

[0040] It should be noted that, whether the circlip 3 expands outward or contracts radially, the initial diameter corresponding to the circlip 3 should be the diameter of the circlip 3 in use. The position of the circlip 3 is limited by the position of the mounting seat 2 to achieve the above purpose.

[0041] For example, when the corresponding diameter of the elastic circlip 3 in the use state is 100 mm, the distance between the corresponding mounting seats 2 is adjusted to 100 mm, and then the elastic circlip 3 is compressed or expanded between the limit grooves of the mounting seat 2, so that the corresponding diameter of the elastic circlip 3 is 100 mm. At this time, the corresponding elastic force value is the first reading. Then, the mounting seat 2 is released, and the elastic circlip 3 is restored to return to a natural state relative to the bracket 1. At this time, the corresponding elastic force value is the second reading. The difference between the second reading and the first reading can be used to obtain the elastic force corresponding to the diameter of the elastic circlip 3 when it is 100 mm in the use state.

[0042] The positioning member 4 is movably connected to the bracket 1 , and is located on a side of the mounting seat 2 away from the circlip 3 , so that the positioning member 4 can abut against the mounting seat 2 .

[0043] Taking into account that the mounting seat 2 can slide relative to the bracket 1 to achieve the above-mentioned approach to and distance from the center of the bracket 1, a positioning member 4 is additionally provided to fix the position of the mounting seat 2. The positioning member 4 is located on the side of the mounting seat 2 away from the elastic ring 3, so that the positioning member 4 can abut against the mounting seat 2, thereby achieving that the elastic ring 3 remains in use. The positioning member 4 can limit the movement of the mounting seat 2 away from the center of the bracket 1 to ensure the smooth progress of the test process.

[0044] The detection assembly is connected to two ends of the elastic circlip 3 in its own extending direction to detect the elastic force of the elastic circlip 3 .

[0045] Place the bracket 1 on a horizontal plane, then install the circlip 3 to the corresponding position, and use the limiting groove of the mounting seat 2 to abut against the outer periphery of the circlip 3 to limit the position of the circlip 3, so that the circlip 3 is in use. The positioning member 4 is installed to the side of the mounting seat 2 away from the circlip 3 to limit the movement of the mounting seat 2. The detection component performs the first reading, then releases the positioning member 4, the circlip 3 returns to its natural state, and the detection component performs the second reading. The difference between the two readings of the detection component can be used to measure the corresponding elastic force of the circlip 3 in this use state, thereby realizing the detection of the elastic force of the circlip 3 for the hole.

[0046] In this embodiment, the detection assembly includes a sensor 5 for measuring elastic force and two clamps 6 with one end connected to the sensor 5 in opposite directions. The other ends of the two clamps 6 are respectively connected to the ends of the elastic ring 3 in its own extension direction, so that when the contracted elastic ring 3 expands outward to restore its original shape, the clamps 6 are driven to pull the sensor 5.

[0047] It can be understood that there are two clamps 6, and one end of the clamp 6 is connected to one end of the elastic ring 3, and the other end of the clamp 6 is connected to the steel rope on the sensor 5. The two steel ropes in opposite directions on the sensor 5 make the elastic ring 3 expand outward, and the two clamps 6 drive the steel ropes to be pulled away from each other, so that the sensor 5 can take readings.

[0048] The elastic force of the circlip 3 in the use state can be known by the difference between the first reading when the circlip 3 is in use and the second reading when the circlip 3 returns to its original shape.

[0049] It should be noted that the bracket 1 includes a first cross bar 11 and a second cross bar 12 that are perpendicular to each other. The centers of the first cross bar 11 and the second cross bar 12 overlap to form a cross-shaped bracket 1. The first cross bar 11 and the second cross bar 12 are both rod-shaped structures. A through hole is provided on the mounting seat 2 so that the mounting seat 2 is sleeved on both ends of the first cross bar 11 and the second cross bar 12, and the mounting seat 2 can move along the extension direction of the first cross bar 11 or the second cross bar 12 to facilitate the sliding of the mounting seat 2 on the support rod. The first cross bar 11 and the second cross bar 12 are both provided with scale marks 13 to adjust the position of the mounting seat 2 according to the diameter of the elastic ring 3 in use. The position of the mounting seat 2 is then limited by the positioning member 4 to determine the distance between the elastic ring 3 and the center of the bracket 1.

[0050] In this embodiment, the ends of the first cross bar 11 and the second cross bar 12 are provided with threaded sections, the positioning member 4 is a cylindrical structure, and the end of the positioning member 4 facing away from the mounting seat 2 is provided with an internal thread adapted to the threaded section, and the positioning member 4 sleeved on the first cross bar 11 or the second cross bar 12 can be rotated to abut against the mounting seat 2.

[0051] Among them, considering that the mounting seat 2 will slide a certain distance on the first cross bar 11 and the second cross bar 12, in order to avoid contact between the mounting seat 2 and the threaded section, the non-threaded section in the positioning member 4 of the cylindrical structure should be set longer to control the distance between the mounting seat 2 and the threaded section at the end of the first cross bar 11 and the second cross bar 12, to ensure the smooth sliding of the mounting seat 2 when the elastic retaining ring 3 expands outward, and at the same time, the outer diameter of the thread of the threaded section of the first cross bar 11 and the second cross bar 12 should be less than or equal to the outer diameter of the first cross bar 11 and the second cross bar 12.

[0052] In this embodiment, the mounting seat 2 is an L-shaped structure including a through portion and a raised portion, the through portion is provided with a through hole, and all the raised portions are located on one side of the bracket 1, so that the installed elastic retaining ring 3 is located on one side of the bracket 1, the positioning piece 4 can abut against the raised portion, and the side of the raised portion facing away from the positioning piece 4 is partially concave to form a limiting groove, so that all the limiting grooves can contact the outside of the elastic retaining ring 3, wherein the limiting groove is an arc groove to improve the abutment effect, when the elastic retaining ring 3 in the compressed state needs to expand outward to restore, the two positioning pieces 4 arranged on the first cross bar 11 should be removed first, and then the two positioning pieces 4 arranged on the second cross bar 12 should be removed, so that the elastic retaining ring 3 drives the mounting seat 2 to move radially. In order to facilitate the movement process of the mounting seat 2 and reduce the wear between the mounting seat 2 and the first cross bar 11 or the second cross bar 12, lubricant is provided between the through hole of the mounting seat 2 and the first cross bar 11 and between the through hole and the second cross bar 12.

[0053] In summary, the force measuring device for a locking elastic retaining ring 3 for a hole provided in the present application includes a bracket assembly, a positioning member 4 and a detection assembly. The bracket assembly includes a bracket 1 and a mounting seat 2 located circumferentially of the bracket 1. The mounting seat 2 can slide relative to the bracket 1 to approach and move away from the center of the bracket 1. A limiting groove that can abut the elastic retaining ring 3 is provided on the side of the mounting seat 2 facing the center of the bracket 1; the positioning member 4 is movably connected to the bracket 1, and the positioning member 4 is located on the side of the mounting seat 2 away from the elastic retaining ring 3, and the positioning member 4 can abut the mounting seat 2; the detection assembly includes a sensor 5 for measuring elastic force and two clamps 6 with one end connected to the opposite direction of the sensor 5, and the other ends of the two clamps 6 are respectively connected to the end of the elastic retaining ring 3 in its own extension direction, so that when the contracted elastic retaining ring 3 expands outward to restore its original shape, the clamp 6 is driven to pull the sensor 5.

[0054] The mounting base 2 on the first cross bar 11 and the second cross bar 12 is moved to a preset position, that is, the distance between the corresponding limiting grooves is equal to the diameter of the elastic circlip 3 in the use state, and then the mounting base 2 is limited to move outward by the positioning member 4. After the elastic circlip 3 is installed in the limiting groove of the mounting base 2, the first reading on the sensor 5 is performed, and then the corresponding positioning members 4 are successively loosened, so that the elastic circlip 3 drives the mounting base 2 to move outward until the elastic circlip 3 returns to its natural state, and the second reading on the sensor 5 is performed. The difference between the two readings is the elastic force corresponding to the elastic circlip 3 in this use state.

[0055] It should be noted that, in this specification, relational terms such as first and second are merely used to distinguish one entity from other entities, but do not necessarily require or imply any actual relationship or order between these entities.

[0056] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0057] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only intended to help understand the method and core concept of the present invention. It should be noted that those skilled in the art can make various improvements and modifications to the present invention without departing from the principles of the present invention, and such improvements and modifications also fall within the scope of protection of the present invention.

Claims

1. A force measuring device for a locking elastic retaining ring for a hole, characterized in that: include: A bracket assembly includes a bracket and a mounting seat located circumferentially of the bracket, wherein the mounting seat can slide relative to the bracket to move closer to and away from the center of the bracket, and a limiting groove capable of abutting against an elastic retaining ring is provided on a side of the mounting seat facing the center of the bracket; a positioning member movably connected to the bracket, and located on a side of the mounting seat away from the circlip, and capable of abutting against the mounting seat; The detection component is connected to the two ends of the elastic retaining ring in its own extension direction to detect the elastic force of the elastic retaining ring.

2. The hole locking circlip force measuring device according to claim 1, characterized in that: The detection assembly includes a sensor for measuring elastic force and two clamps with one end connected to the sensor in opposite directions, and the other ends of the two clamps are respectively connected to the ends of the elastic retaining ring in its own extension direction, so that when the contracted elastic retaining ring expands outward to restore its original shape, the clamps are driven to pull the sensor.

3. The hole locking circlip force measuring device according to claim 1, characterized in that: The bracket includes a first crossbar and a second crossbar that are perpendicular to each other, and the centers of the first crossbar and the second crossbar overlap to form a cross-shaped bracket.

4. The hole locking circlip force measuring device according to claim 3, characterized in that: The first crossbar and the second crossbar are both rod-shaped structures; The mounting seat is provided with a through hole so that the mounting seat is sleeved on both ends of the first cross bar and the second cross bar, and the mounting seat can move along the extending direction of the first cross bar or the second cross bar.

5. The hole locking circlip force measuring device according to claim 4, characterized in that: The ends of the first cross bar and the second cross bar are provided with threaded sections; The positioning member is a cylindrical structure, and an end of the positioning member away from the mounting seat is provided with an internal thread adapted to the threaded section. The positioning member sleeved on the first cross bar or the second cross bar can rotate to abut against the mounting seat.

6. The hole locking circlip force measuring device according to claim 5, characterized in that: The mounting seat is an L-shaped structure including a through portion and a raised portion, the through portion is provided with the through hole, all the raised portions are located on one side of the bracket, and the positioning member can abut against the raised portion, and the side of the raised portion facing away from the positioning member is partially concave to form the limiting groove.

7. The hole locking circlip force measuring device according to claim 1, characterized in that: The limiting groove is an arc-shaped groove.

8. The hole locking circlip force measuring device according to claim 4, characterized in that: Lubricant is provided between the through hole and the first cross bar and between the through hole and the second cross bar.

9. The hole locking circlip force measuring device according to claim 3, characterized in that: The first crossbar and the second crossbar are both provided with scale marks to determine the distance between the elastic retaining ring and the center of the bracket.

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