A motor train unit coupling joint pressing and measuring scale

Abstract

The utility model relates to the technical field of press -fit measuring scale, and disclose a motor train unit coupling press -fit measuring scale, including connecting axle body and setting in the measuring scale of connecting axle body surface, still include: the fixed mechanism that utilizes the meshing between inside parts to realize size adjustment is set in the inner chamber of connecting axle body, the surface of fixed mechanism is provided with the position adjusting mechanism that carries out position adjustment at will through rotation, the utility model discloses through position adjusting mechanism, utilize inside can be through the flexible position adjustment of rotation, and can realize firm fixing with the aid of magnetic force, can be adjusted to any required position in the measuring process, utilize the mode of mechanical support to effectively avoid the shaking caused by artificial factor, ensure the stability of the measured data, and the fixed mechanism can realize the fixation of multiple size connecting axles, even if facing different specifications connecting axles, the mechanism still can stably fix them, guarantee the smooth of measuring work, greatly promote the convenience and accuracy of measurement.

Description

Technical Field

[0001] This utility model relates to the field of press-fit measuring ruler technology, specifically a press-fit measuring ruler for EMU couplings. Background Technology

[0002] The coupling press-fit measuring gauge can accurately measure various key dimensional parameters of the coupling during press-fitting, such as press-fitting displacement and fit clearance, to ensure that the coupling is press-fitted in place and the fit accuracy meets the design requirements. This avoids loose coupling connection, reduced transmission performance, or even failure due to insufficient or excessive press-fitting, and ensures the stable and reliable operation of the EMU transmission system.

[0003] Currently, most coupling press-fit measurement work still relies on manual operation of the measuring ruler. Since manual support makes it difficult to guarantee absolute stability, any hand tremors during the measurement process will cause the measuring ruler to shake. Even slight tremors can interfere with the accurate acquisition of data by the measuring ruler, potentially leading to deviations in the final measurement data, causing measurement abnormalities, and consequently affecting the accurate judgment of the coupling press-fit quality. Utility Model Content

[0004] The purpose of this utility model is to provide a measuring ruler for pressing couplings of high-speed trains, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a pressure-fitting measuring ruler for a high-speed train coupling, comprising a connecting shaft body and a measuring ruler disposed on the surface of the connecting shaft body, and further comprising: A fixing mechanism is installed in the inner cavity of the connecting shaft body to achieve size adjustment by the meshing between internal parts. The surface of the fixing mechanism is provided with an adjustment mechanism that can be adjusted at will by rotation.

[0006] Preferably, the fixing mechanism includes: A stop block is fixed to the inner wall of the connecting shaft body. A push rod is fixed to the surface of the stop block. A sliding rod is fixed to the other end of the push rod. A support block slides on the surface of the push rod. An adjustment block slides on the surface of the sliding rod. A sliding groove is opened on the surface of the adjustment block. A fixing rod is fixed on the surface of the adjustment block.

[0007] Preferably, the adjusting mechanism includes: A connecting rod is fixed to the surface of a measuring ruler. The inner cavity of the connecting rod has a rotating shaft that rotates, and the surface of the rotating shaft has a rotating rod that rotates. A first magnet is fixed to the inner wall of the connecting rod, and a second magnet is fixed to the inner wall of the fixing rod.

[0008] Preferably, the measuring ruler is a digital micrometer, which can internally convert displacement into an electrical signal.

[0009] Preferably, the sliding groove is formed in a smooth arc shape, and the sliding groove is used in conjunction with the sliding rod.

[0010] Preferably, the push rods are arranged in a circular array, and the push rods are used in conjunction with the sliding rods.

[0011] Preferably, the abutment has an arc shape and is used in conjunction with the push rod.

[0012] Preferably, the connecting rod is made of carbon fiber, and the connecting rod is used in conjunction with the measuring ruler.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention utilizes an adjustment mechanism that allows for flexible internal position adjustment via rotation and secure fixation via magnetic force. During measurement, it can be adjusted to any desired position. The mechanical support effectively avoids vibrations caused by human factors, ensuring the stability of the measurement data. At the same time, the fixing mechanism can fix connecting shafts of various sizes. Even when faced with connecting shafts of different specifications, the mechanism can still stably fix them, ensuring smooth measurement work and greatly improving the convenience and accuracy of measurement. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a cross-sectional three-dimensional structural diagram of the present invention; Figure 3 This is a partial cross-sectional three-dimensional structural diagram of the present invention; Figure 4 This is a partial three-dimensional structural diagram of the present invention; Figure 5 This utility model Figure 2 Enlarged diagram of point A in the middle.

[0015] In the diagram: 1. Connecting shaft body; 2. Measuring ruler; 3. Adjustment mechanism; 31. Connecting rod; 32. Rotating rod; 33. Rotating shaft; 34. First magnet; 35. Second magnet; 4. Fixing mechanism; 41. Fixing rod; 42. Adjusting block; 43. Sliding groove; 44. Sliding rod; 45. Push rod; 46. Abutment block; 47. Support block. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figure 1-5 As shown, a measuring ruler for press-fitting couplings of high-speed trains includes a connecting shaft body 1, a measuring ruler 2 on the surface of the connecting shaft body 1, a fixing mechanism 4 in the inner cavity of the connecting shaft body 1 for adjusting the size by meshing between internal parts, and an adjustment mechanism 3 on the surface of the fixing mechanism 4 for adjusting the position by rotation.

[0018] The connecting shaft body 1 includes a coupling to compensate for the relative displacement between the two shafts and to buffer and reduce vibration; or a gear coupling, including auxiliary components such as bushings and retaining rings. The bushings can reduce the wear between the connecting shaft and other components, while the retaining rings are used to axially position the connecting shaft and prevent it from moving axially.

[0019] The measuring ruler 2 is set on the surface of the connecting shaft body 1 to measure the distance between the end face of the motor spindle and the outer end face of the sliding bushing. It also needs to measure the distance between the sliding bushing and the end face of the drum-shaped tooth, and process the data.

[0020] Measuring Ruler 2 is a digital micrometer that can convert displacement into electrical signals internally, making the reading intuitive and avoiding human reading errors. In addition, it has a certain amplification effect during the measurement process, which can more accurately perceive changes in size.

[0021] The fixing mechanism 4 is set in the inner cavity of the connecting shaft body 1 and can be adjusted by rotation, so as to adapt to the measurement of more connecting shafts of different sizes, provide them with stable support, and thus ensure the accuracy of the measurement data.

[0022] The fixing mechanism 4 includes a stop block 46 fixed to the inner wall of the connecting shaft body 1. A push rod 45 is fixed to the surface of the stop block 46. A sliding rod 44 is fixed to the other end of the push rod 45. A support block 47 slides on the surface of the push rod 45. An adjusting block 42 slides on the surface of the sliding rod 44. A sliding groove 43 is opened on the surface of the adjusting block 42. A fixing rod 41 is fixed on the surface of the adjusting block 42.

[0023] The fixing rod 41 rotates within the inner cavity of the connecting shaft body 1. By rotating, the rotation of the adjusting block 42 is adjusted, thereby indirectly adjusting the adaptability of the device. Its surface is provided with threads that can engage and fix with the support block 47.

[0024] The adjusting block 42 is fixed to one end of the fixing rod 41. By rotating, the sliding groove 43 on the surface is rotated, and the adjusting block 46 is moved by the interlocking rotation.

[0025] The sliding groove 43 is formed on the surface of the adjusting block 42. Driven by the adjusting block 42, the sliding rod 44 is pushed to slide inside by the shape feature of the sliding groove 43, and the height of the sliding rod 44 is adjusted by sliding.

[0026] The sliding groove 43 is formed in a smooth arc shape, and the center of the arc is not on the same horizontal axis as the fixed rod 41. The sliding groove 43 is used in conjunction with the sliding rod 44. The arc shape allows the sliding rod 44 to slide inside better when the fixed rod 41 rotates, thus adjusting the height.

[0027] The sliding rod 44 slides on the inner wall of the sliding groove 43, continuously sliding on the inner wall of the sliding groove 43 to adjust the height of the sliding rod 44, thereby controlling the position of the push rod 45 fixed thereon.

[0028] The push rod 45 is fixed to the surface of the sliding rod 44 and is used to directly contact the stop block 46, converting the position change of the sliding rod 44 into the height of the stop block 46 movement.

[0029] The push rods 45 are arranged in a ring array. The push rods 45 work together with the sliding rods 44 to simultaneously push the blocks 46 in four directions for fixation, ensuring that there is support in each direction.

[0030] The abutment 46 slides on the surface of the support block 47. By pushing the push rod 45, the abutment 46 is pressed against the inner wall of the connecting shaft body 1, so as to achieve the purpose of support and fixation.

[0031] The outer shape of the stop block 46 is arc-shaped. The stop block 46 works in conjunction with the push rod 45. The arc shape can fit more closely to the inner wall of the connecting shaft body 1, making the positioning more stable and reducing the possibility of slippage.

[0032] The support block 47 rotates on the surface of the fixed rod 41 and is slidably connected to the adjusting block 42. It is used to support the operation between internal parts and to provide a storage position for the abutment block 46. When the abutment block 46 is not used, it can be stored in the groove opened on the surface of the support block 47 and engaged and fixed to the fixed rod 41 by the threads provided on the surface.

[0033] The adjustment mechanism 3 is set on the surface of the measuring ruler 2. It uses the internal rotating shaft to continuously rotate and change, thereby adjusting the angle and stretching distance, and thus controlling the measuring ruler 2 to be located inside the connecting shaft body 1, providing sufficiently stable support and reducing errors caused by human support.

[0034] The adjustment mechanism 3 includes a connecting rod 31 fixed to the surface of the measuring ruler 2, a rotating shaft 33 rotating inside the connecting rod 31, a rotating rod 32 rotating on the surface of the rotating shaft 33, a first magnet 34 fixed to the inner wall of the connecting rod 31, and a second magnet 35 fixed to the inner wall of the fixing rod 41.

[0035] The connecting rod 31 rotates on the surface of the rotating shaft 33. The measuring ruler 2 is directly fixed and rotated to adjust its position for measurement.

[0036] The connecting rod 31 is made of carbon fiber. The connecting rod 31 is used in conjunction with the measuring ruler 2. The carbon fiber material can greatly reduce its own weight, so that the connection can provide a more stable force.

[0037] The rotating rod 32 rotates on the surface of the fixed rod 41. The main shaft makes initial adjustments to confirm the approximate position, and the connecting rod 31 makes further adjustments to the position. With the cooperation of the two shafts, multiple position adjustments can be achieved.

[0038] The rotating shaft 33 rotates within the inner cavity of the connecting rod 31, connecting the connecting rod 31 and the rotating rod 32, and providing them with rotational capability.

[0039] The first magnet 34 is fixed to the inner wall of the connecting rod 31. The mutual attraction between the magnets compensates for the lack of friction and is fixed by magnetic force. It can still be stably fixed in position after the loss of personnel support.

[0040] The first magnet 34 is made of nickel magnet and is installed at the connection between the connecting rod 31 and the rotating rod 32. Both sides together generate attraction, providing a magnetic force sufficient to support the measuring ruler 2.

[0041] The second magnet 35 is fixed to the inner wall of the fixed rod 41. It uses magnetic force to attract one end of the rotating rod 32 to rotate. Similarly, it uses magnetic force to compensate for the lack of friction, so as to achieve the purpose of stabilizing the rod after adjustment.

[0042] Working principle: Before measuring the connecting shaft, the operator first places the device inside the connecting shaft, then rotates the fixing rod 41. As the fixing rod 41 rotates, the internal adjusting block 42 rotates. With the rotation of the adjusting block 42, the sliding groove 43 on the surface continuously pushes the sliding rod 44 upwards. As the height of the sliding rod 44 changes continuously, the pushing rod 45 pushes the abutment block 46 upwards. As the fixing rod 41 rotates continuously, the abutment block 46 gradually presses against the inner wall of the connecting shaft body 1 until the fixing rod 41 can no longer rotate, thus completing the fixing. After fixing, the measuring ruler 2 can be pulled to adjust the position. With the pulling or pushing of the measuring ruler 2, the rotating rod 32 continuously rotates on the surface of the fixing rod 41 to adjust the angle. Combined with the second magnet 35, a certain positioning capability can be achieved. After initial positioning, the fixing rod 41 is moved for secondary position adjustment. The first magnet 34 inside provides auxiliary fixing. The measuring ruler 2 is then placed on the surface of the connecting shaft body 1 at the position to be measured. Distance is measured and data is collected by adjusting the measuring ruler 2.

[0043] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0044] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A measuring ruler for press-fitting couplings of high-speed trains, comprising a connecting shaft body (1) and a measuring ruler (2) disposed on the surface of the connecting shaft body (1), characterized in that: Also includes: A fixing mechanism (4) is provided in the inner cavity of the connecting shaft body (1) to achieve size adjustment by meshing between internal parts. The surface of the fixing mechanism (4) is provided with an adjustment mechanism (3) that can be adjusted at will by rotation.

2. The measuring ruler for press-fitting couplings of high-speed trains according to claim 1, characterized in that: The fixing mechanism (4) includes: A stop block (46) is fixed to the inner wall of the connecting shaft body (1). A push rod (45) is fixed to the surface of the stop block (46). A sliding rod (44) is fixed to the other end of the push rod (45). A support block (47) slides on the surface of the push rod (45). An adjustment block (42) slides on the surface of the sliding rod (44). A sliding groove (43) is opened on the surface of the adjustment block (42). A fixing rod (41) is fixed on the surface of the adjustment block (42).

3. The measuring ruler for press-fitting couplings of high-speed trains according to claim 2, characterized in that: The adjustment mechanism (3) includes: A connecting rod (31) is fixed to the surface of the measuring ruler (2). The inner cavity of the connecting rod (31) has a rotating shaft (33) that rotates. The surface of the rotating shaft (33) has a rotating rod (32) that rotates. The inner wall of the connecting rod (31) is fixed with a first magnet (34), and the inner wall of the fixing rod (41) is fixed with a second magnet (35).

4. A measuring ruler for press-fitting couplings of high-speed trains according to claim 1, characterized in that: The measuring ruler (2) is a digital micrometer, which can convert displacement into electrical signals internally.

5. A measuring ruler for press-fitting couplings of high-speed trains according to claim 2, characterized in that: The sliding groove (43) is open in a smooth arc shape, and the sliding groove (43) is used in conjunction with the sliding rod (44).

6. A measuring ruler for press-fitting couplings of high-speed trains according to claim 2, characterized in that: The push rods (45) are arranged in a ring array and are used in conjunction with the sliding rods (44).

7. A measuring ruler for press-fitting couplings of high-speed trains according to claim 2, characterized in that: The outer shape of the abutment (46) is arc-shaped, and the abutment (46) is used in conjunction with the push rod (45).

8. A measuring ruler for press-fitting couplings of high-speed trains according to claim 3, characterized in that: The connecting rod (31) is made of carbon fiber and is used in conjunction with the measuring ruler (2).

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