Leveling device for measuring inner diameter of locking ring of main connecting rod bushing of helicopter engine

Abstract

The utility model discloses a leveling device for measuring the inner diameter of a locking ring of a main connecting rod bushing of a helicopter engine. The two clamping parts are arranged at the two ends of the bushing; wherein one clamping part is fixedly connected with the lining through the first fixing hole, and is a fixed clamping part; the other clamping part is in sliding connection with the lining through the first sliding hole and is a sliding clamping part; and two leveling parts. According to the embodiment of the utility model, the lining and the two clamping parts are leveled through the two leveling parts, the lining and the two clamping parts are ensured to be located on the same horizontal line in the detection area of the inner diameter of the locking ring, and then the inner diameter of the locking ring is detected by using the two clamping parts, so that the horizontal detection requirement of the inner diameter of the locking ring is met, and the detection accuracy is improved. And the follow-up measurement precision of the inner diameter of the locking ring is ensured. According to the leveling device, detection and leveling can be completed only by one person, the leveling effect is good, and the efficiency is high. The defect that in the prior art, the leveling precision effect of measuring the inner diameter of a locking ring of a special-shaped structure is poor is effectively overcome.

Description

Technical Field

[0001] The utility model relates to the technical field of locking ring inner diameter measurement, in particular to a helicopter engine main connecting rod bushing locking ring inner diameter measurement and leveling device. Background Art

[0002] At present, when measuring the inner diameter of the main connecting rod bushing lock ring of a helicopter engine, the measuring position is a special-shaped structure (narrow groove, see Figure 1 ), when inspecting the inner diameter periphery with different depths, due to its irregular structure, it is necessary to manually ensure that the measuring tool is in a horizontal state, but the manual leveling accuracy is poor and requires the participation of multiple people, resulting in poor leveling accuracy and affecting the measurement accuracy. Utility Model Content

[0003] The utility model aims to solve the shortcoming of poor precision in measuring and leveling the inner diameter of a locking ring with a special-shaped structure in the prior art, and proposes a helicopter engine main connecting rod bushing locking ring inner diameter measuring and leveling device.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A helicopter engine main connecting rod bushing lock ring inner diameter measuring and leveling device, comprising:

[0006] A bushing, wherein the bushing is in a sleeve shape, and a first fixing hole and a first sliding hole are arranged on the outer periphery of the bushing, and the first fixing hole and the first sliding hole are on the same horizontal line;

[0007] Two clamping parts, the two clamping parts are arranged on two ends of the bushing;

[0008] Among them, one of the clamping parts is fixedly connected to the bushing through the first fixing hole, and is a fixed clamping part;

[0009] The other clamping part is slidably connected to the bushing through the first sliding hole, and is a sliding clamping part;

[0010] Two leveling parts are respectively arranged on the two clamping parts through the upper and lower parts, the bottom ends of the leveling parts are in contact with the inner diameter outer periphery of the locking ring, and the leveling parts are used to level the bushing and the two clamping parts.

[0011] In a feasible embodiment, the leveling device further includes:

[0012] The spring is sleeved inside the bushing, and the two clamping parts are sleeved on two ends of the spring respectively.

[0013] In a feasible embodiment, the fixed clamping portion includes:

[0014] A first connecting rod, wherein a mounting hole is provided on the first connecting rod, the first connecting rod is sleeved inside one end of the bushing, and one end of the first connecting rod located inside the bushing is sleeved on one end of the spring;

[0015] Wherein, the mounting hole is connected with the first fixing hole in an up-and-down manner;

[0016] a connecting piece, one end of which passes through the first fixing hole and is connected to the mounting hole, so as to realize fixed connection between the first connecting rod and the bushing;

[0017] The first measuring block is arranged at the other end of the first connecting rod, the side of the first measuring block away from the first connecting rod is sheet-shaped, the first measuring block is provided with a first abutment joint on the sheet-shaped side, and the first measuring block locates the first abutment joint in the detection area of ​​the inner diameter of the locking ring through the sheet-shaped side.

[0018] In a feasible embodiment, the sliding clamping portion includes:

[0019] A second connecting rod, the second connecting rod also being provided with a mounting hole, the second connecting rod being sleeved inside the other end of the bushing, and one end of the second connecting rod located inside the bushing being sleeved on the other end of the spring;

[0020] Wherein, the mounting hole is connected with the first sliding hole in an up-and-down manner;

[0021] A second connecting member, one end of which passes through the first sliding hole and is connected to the mounting hole, and the second connecting rod slides in the first sliding hole through the second connecting member;

[0022] The second measuring block is arranged at the other end of the second connecting rod, the side of the second measuring block away from the second connecting rod is sheet-shaped, the second measuring block is provided with a second abutment joint on the sheet-shaped side, and the second measuring block locates the second abutment joint in the detection area of ​​the inner diameter of the locking ring through the sheet-shaped side.

[0023] In a feasible embodiment, the first sliding hole is a bar-shaped hole.

[0024] In a feasible embodiment, the leveling part includes:

[0025] A spring plunger, the spring plunger is vertically penetrated on the first measuring block and / or the second measuring block, and the bottom end of the spring plunger abuts against the top edge of the inner diameter of the locking ring to achieve a leveling operation of the fixed clamping part and the sliding clamping part in cooperation with the bushing;

[0026] An adjusting nut is sleeved on the outside of the spring plunger, the adjusting nut is threadably connected to the spring plunger, and the bottom end of the adjusting nut abuts against the top end of the measuring block.

[0027] In a feasible embodiment, the spring plunger is connected to the measuring block by pulling.

[0028] In a feasible embodiment, a handle is further provided on the bushing, and the handle is detachably connected to the bushing.

[0029] The beneficial effects of the utility model are:

[0030] In the embodiment of the utility model, the bushing and the two clamping parts are leveled by two leveling parts, ensuring that the bushing and the two clamping parts are on the same horizontal line in the detection area of ​​the inner diameter of the lock ring, and then the inner diameter of the lock ring is detected by the two clamping parts, which meets the horizontal detection requirements of the inner diameter of the lock ring and ensures the subsequent measurement accuracy of the inner diameter of the lock ring. That is, the leveling device only needs one person to complete the detection and leveling, and the leveling effect is good and the efficiency is high. It also effectively solves the disadvantage of poor leveling accuracy in measuring the inner diameter of the lock ring of the special-shaped structure in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 Figure 2 is a structural diagram of the locking ring;

[0032] Figure 2 A schematic diagram of the overall structure and use of a helicopter engine main connecting rod bushing lock ring inner diameter measuring and leveling device provided in an embodiment of the utility model;

[0033] Figure 3 It is a schematic diagram of the explosion of the structure of a helicopter engine main connecting rod bushing lock ring inner diameter measuring and leveling device provided in an embodiment of the utility model;

[0034] Figure 4 The present invention is a schematic structural diagram of a sliding clamping portion in a helicopter engine main connecting rod bushing locking ring inner diameter measuring and leveling device provided in an embodiment of the utility model.

[0035] The markings in the figure are as follows:

[0036] 1. Bushing; 11. Connecting piece; 111. First fixing hole; 112. First sliding hole; 12. Handle; 13. Spring;

[0037] 2. Fixed clamping part; 21. First connecting rod; 211. Mounting hole; 22. First measuring block; 221. First abutment head; 23. Spring plunger; 231. Adjusting nut; 24. Sliding clamping part; 241. Second connecting rod; 242. Second measuring block; 243. Measuring plate. DETAILED DESCRIPTION

[0038] 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.

[0039] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0040] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0042] Example

[0043] Reference Figures 1 to 4The purpose of the utility model is to solve the disadvantage of poor leveling accuracy of the inner diameter measurement of the special-shaped lock ring in the prior art, and provide a helicopter engine main connecting rod bushing 1 lock ring inner diameter measurement and leveling device, specifically, the leveling device comprises: a bushing 1, two clamping parts and two leveling parts. The bushing 1 is in the shape of a sleeve, and a first fixing hole 111 and a first sliding hole 112 are arranged on the outer periphery of the bushing 1, and the first fixing hole 111 and the first sliding hole 112 are on the same horizontal line. The two clamping parts are arranged on both ends of the bushing 1, one of the clamping parts is fixedly connected to the bushing 1 through the first fixing hole 111 (that is, the fixed clamping part 2), and the other clamping part is slidably connected to the bushing 1 through the first sliding hole 112 (that is, the sliding clamping part 24), and the two clamping parts are respectively used to abut on the symmetrical sides of the lock ring inner diameter detection area to realize the measurement and detection of the lock ring inner diameter. The two leveling parts are respectively arranged on the two clamping parts through the upper and lower parts, and the bottom end of the leveling part is in contact with the outer periphery of the inner diameter of the locking ring. The leveling part is used to level the bushing 1 and the two clamping parts, ensuring that the bushing 1 and the two clamping parts are on the same horizontal line in the detection area of ​​the inner diameter of the locking ring. That is, in this embodiment, the bushing 1 and the two clamping parts are leveled by the two leveling parts to ensure that the bushing 1 and the two clamping parts are on the same horizontal line in the detection area of ​​the inner diameter of the locking ring, and then the inner diameter of the locking ring is detected by the two clamping parts, which meets the horizontal detection requirements of the inner diameter of the locking ring and ensures the subsequent measurement accuracy of the inner diameter of the locking ring. That is, the leveling device only needs one person to complete the detection and leveling, and the leveling effect is good and the efficiency is high. It also effectively solves the shortcomings of the prior art in that the leveling accuracy of the inner diameter of the locking ring of the special-shaped structure is poor.

[0044] In this embodiment, in order to facilitate the adjustment of the clamping position of the sliding clamping part 24, the leveling device further includes: a spring, which is sleeved inside the bushing 1, and the two clamping parts are sleeved at both ends of the spring. Here, by arranging the spring inside the bushing 1, on the one hand, the relative position between the fixed clamping part 2 and the sliding clamping part 24 is always on the same horizontal line, ensuring the subsequent data feedback accuracy of the two clamping parts; on the other hand, the sliding clamping part 24 can be adaptively corrected and adjusted according to the inner diameter of the lock ring, further ensuring the subsequent measurement accuracy.

[0045] Reference Figure 2 and Figure 3In this embodiment, the two clamping parts have the same structure. In order to facilitate the description of the structure of the two clamping parts, a fixed clamping part 2 is used as an example. The fixed clamping part 2 includes: a first connecting rod 21, a connecting piece 11 and a measuring block. A mounting hole 211 is provided on the first connecting rod 21. The first connecting rod 21 is sleeved inside one end of the bushing 1. The end of the first connecting rod 21 located inside the bushing 1 is sleeved on one end of the spring. The mounting hole 211 is connected to the first fixing hole 111 in upper and lower directions. One end of the connecting piece 11 passes through the first fixing hole 111 and is connected to the mounting hole 211, so as to realize the fixed connection between the first connecting rod 21 and the bushing 1. The first measuring block 22 is arranged at the other end of the first connecting rod 21, and the side of the first measuring block 22 away from the first connecting rod 21 is in the shape of a sheet, and the first measuring block 22 is provided with a first abutment head 221 on the sheet side, and the first measuring block 22 locates the first abutment head 221 in the detection area of ​​the inner diameter of the locking ring through the sheet side, so as to set the detection position of the fixed clamping part 2. In addition, it should be noted that the structure of the sliding clamping part 24 is the same as that of the fixed clamping part 2, and the sliding clamping part 24 is arranged inside the other end of the bushing 1. That is, the sliding clamping part 24 includes: a second measuring block 242, a second connecting rod 241 and a second abutment head, and a second connecting member 11. The second connecting rod 241 in the sliding clamping part 24 is also provided with a mounting hole 211. The second connecting rod 241 is sleeved inside the other end of the bushing 1. One end of the second connecting rod 241 located inside the bushing 1 is sleeved on the other end of the spring. The mounting hole 211 is connected to the first sliding hole 112 up and down. One end of the second connecting member 11 passes through the first sliding hole 112 and is connected to the mounting hole 211. The second connecting member 11 slides in the first sliding hole 112, so that the second measuring block 242 on the sliding clamping part 24 is adaptively corrected and adjusted to ensure the detection effect of the test device. The second measuring block 242 is arranged at the other end of the second connecting rod 241. The side of the second measuring block 242 away from the second connecting rod 241 is in a sheet shape. The second measuring block 242 is provided with a second abutment on the sheet side. The second measuring block 242 places the second abutment in the detection area of ​​the inner diameter of the locking ring through the sheet side. In an embodiment, the first sliding hole 112 is a bar hole to facilitate the sliding of the second connecting member 11 therein.

[0046] Reference Figure 3 and Figure 4In this embodiment, the two leveling parts are detachably connected to the two clamping parts respectively. In order to facilitate the description of the leveling part, one leveling part is described here. The leveling part includes: a spring plunger 23 and an adjusting nut 231. The spring plunger 23 is arranged on the first measuring block 22 and / or the second measuring block 242 from top to bottom, and the bottom end of the spring plunger 23 abuts against the top edge of the inner diameter of the locking ring to realize the leveling operation of the fixed clamping part 2 and the sliding clamping part 24 in cooperation with the bushing 1. The adjusting nut 231 is sleeved on the outside of the spring plunger 23, and the adjusting nut 231 is threadedly connected to the spring plunger 23. The bottom end of the adjusting nut 231 abuts against the top end of the first measuring block 22 or the second measuring block 242. According to the installation height of the spring plunger 23 in the first measuring block 22 or the second measuring block 242, the installation height of the spring plunger 23 is limited by the adjusting nut 231 to adjust the inner diameter of the locking ring of different depths, so as to adjust the leveling height of the bushing 1 and the two clamping parts at any time. In this embodiment, in order to ensure that the spring plunger 23 and the adjusting nut 231 cooperate with the horizontal position between the two clamping parts and the bushing 1 to meet the requirements of the lock ring inner diameter detection in the lock ring inner diameter detection area at different depths, the spring plunger 23 is plugged and connected with the first measuring block 22 and the second measuring block 242 (transition fit or interference fit), that is, in actual installation, the spring plunger 23 is vertically penetrated and installed into the first measuring block 22 and the second measuring block 242, and then the adjusting nut 231 is installed on the external thread of the spring plunger 23, so that the adjusting nut 231 is abutted against the top of the first measuring block 22 and the second measuring block 242 to control the insertion and extraction depth of the spring plunger 23 in the first measuring block 22 and the second measuring block 242. In a feasible embodiment, the spring plunger 23 can be threadedly connected with the first measuring block 22 and the second measuring block 242.

[0047] In some embodiments, in order to ensure the stability and adjustability of the connection between the spring plunger 23 and the first measuring block 22 and the second measuring block 242, the spring plunger 23 and the first measuring block 22 and the second measuring block 242 are connected by pull-out (i.e., transition fit).

[0048] In some embodiments, in order to facilitate the measurement of test data of the fixed clamping part 2 and the sliding clamping part 24, the sliding clamping part 24 also includes: a measuring plate 243, and the measuring plate 243 is arranged on the second measuring block 242 of the sliding clamping part 24, so as to realize the adaptive correction parameter data of the sliding clamping part 24 to the inner diameter of the locking ring by observing and measuring the sliding clamping part 24 on one side of the sliding clamping part 24 through the measuring plate 243.

[0049] In this embodiment, in order to facilitate the inspector to take the measuring device, a handle 12 is further provided on the bushing 1, and the handle 12 is detachably connected to the bushing 1 through a thread.

[0050] 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 within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A helicopter engine main connecting rod bushing lock ring inner diameter measuring and leveling device, characterized in that: include: A bushing, wherein the bushing is in a sleeve shape, and a first fixing hole and a first sliding hole are arranged on the outer periphery of the bushing, and the first fixing hole and the first sliding hole are on the same horizontal line; Two clamping parts, the two clamping parts are arranged on two ends of the bushing; Among them, one of the clamping parts is fixedly connected to the bushing through the first fixing hole, and is a fixed clamping part; The other clamping part is slidably connected to the bushing through the first sliding hole, and is a sliding clamping part; Two leveling parts are respectively arranged on the two clamping parts through the upper and lower parts, the bottom ends of the leveling parts are in contact with the inner diameter outer periphery of the locking ring, and the leveling parts are used to level the bushing and the two clamping parts.

2. A helicopter engine main connecting rod bushing lock ring inner diameter measuring and leveling device according to claim 1, characterized in that: The leveling device also includes: The spring is sleeved inside the bushing, and the two clamping parts are sleeved on two ends of the spring respectively.

3. A helicopter engine main connecting rod bushing lock ring inner diameter measuring and leveling device according to claim 2, characterized in that: The fixed clamping portion comprises: A first connecting rod, wherein a mounting hole is provided on the first connecting rod, the first connecting rod is sleeved inside one end of the bushing, and one end of the first connecting rod located inside the bushing is sleeved on one end of the spring; Wherein, the mounting hole is connected with the first fixing hole in an up-and-down manner; a connecting piece, one end of which passes through the first fixing hole and is connected to the mounting hole, so as to realize fixed connection between the first connecting rod and the bushing; The first measuring block is arranged at the other end of the first connecting rod, the side of the first measuring block away from the first connecting rod is sheet-shaped, the first measuring block is provided with a first abutment joint on the sheet-shaped side, and the first measuring block locates the first abutment joint in the detection area of ​​the inner diameter of the locking ring through the sheet-shaped side.

4. A helicopter engine main connecting rod bushing lock ring inner diameter measuring and leveling device according to claim 3, characterized in that: The sliding clamping portion comprises: A second connecting rod, the second connecting rod also being provided with a mounting hole, the second connecting rod being sleeved inside the other end of the bushing, and one end of the second connecting rod located inside the bushing being sleeved on the other end of the spring; Wherein, the mounting hole is connected with the first sliding hole in an up-and-down manner; A second connecting member, one end of which passes through the first sliding hole and is connected to the mounting hole, and the second connecting rod slides in the first sliding hole through the second connecting member; The second measuring block is arranged at the other end of the second connecting rod, the side of the second measuring block away from the second connecting rod is sheet-shaped, the second measuring block is provided with a second abutment joint on the sheet-shaped side, and the second measuring block locates the second abutment joint in the detection area of ​​the inner diameter of the locking ring through the sheet-shaped side.

5. A helicopter engine main connecting rod bushing lock ring inner diameter measuring and leveling device according to claim 4, characterized in that: The first sliding hole is a bar-shaped hole.

6. A helicopter engine main connecting rod bushing lock ring inner diameter measuring and leveling device according to claim 5, characterized in that: The leveling part comprises: A spring plunger, the spring plunger is vertically penetrated on the first measuring block and / or the second measuring block, and the bottom end of the spring plunger abuts against the top edge of the inner diameter of the locking ring to achieve a leveling operation of the fixed clamping part and the sliding clamping part in cooperation with the bushing; An adjusting nut is sleeved on the outside of the spring plunger, the adjusting nut is threadably connected to the spring plunger, and the bottom end of the adjusting nut abuts against the top end of the measuring block.

7. A helicopter engine main connecting rod bushing lock ring inner diameter measuring and leveling device according to claim 6, characterized in that: The spring plunger is connected to the measuring block by pulling.

8. The helicopter engine main connecting rod bushing lock ring inner diameter measuring and leveling device according to claim 1, characterized in that: The bushing is also provided with a handle, and the handle is detachably connected to the bushing.

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