Device suitable for measuring height of striker relative to center sill

Abstract

The utility model belongs to the technical field of railway wagon measuring tools, and particularly relates to a device suitable for measuring the height of an impact block relative to a center sill, which comprises a clamping mechanism, a connecting rod and a distance measuring mechanism, the connecting rod comprises a vertical part and a horizontal part and is L-shaped, the vertical part is rotatably connected with the horizontal part, the clamping mechanism is connected with the top end of the vertical part, and the distance measuring mechanism is connected with the top end of the horizontal part. The right end of the horizontal part is in threaded connection with the distance measuring mechanism. The device is simple and flexible in structure, convenient to use and accurate in reading, is suitable for various railway wagons, improves the working efficiency, and avoids the problem of low measurement accuracy caused by large surface roughness of the impact seat casting.

Description

Technical Field

[0001] This utility model belongs to the field of railway freight car measuring tools, and in particular relates to a measuring device suitable for measuring the height of the impact seat relative to the center beam. Background Technology

[0002] The height of the impact seat relative to the center beam of a railway freight car directly affects the stability of the vehicle when subjected to impacts during operation. A reasonable height can effectively absorb and disperse impact energy, reduce damage to the vehicle structure, improve vehicle safety, and ensure the stability of goods during transportation, reducing cargo damage caused by impacts and improving transportation efficiency and quality. Existing measuring devices for the height of the impact seat relative to the center beam are fixed-length and fixed-angle "L"-shaped structures, which can only measure fixed types of railway freight cars and cannot accurately measure the height of the impact seat relative to the center beam, providing only an approximate value. Furthermore, the complex operating environment of railway freight cars results in high surface roughness of the impact seat castings, leading to low accuracy of traditional measuring devices and affecting the safety and stability of railway freight car operation. Utility Model Content

[0003] The purpose of this invention is to provide a measuring device suitable for measuring the height of the impact seat relative to the center beam, solving the problem of poor detection accuracy of traditional measuring devices due to the large surface roughness of the impact seat casting.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A measuring device for measuring the height of an impact seat relative to a center beam includes a clamping mechanism, a connecting rod, and a ranging mechanism. The connecting rod includes a vertical part and a horizontal part, which are L-shaped. The vertical part and the horizontal part are rotatably connected. The clamping mechanism is connected to the top end of the vertical part, and the right end of the horizontal part is threadedly connected to the ranging mechanism.

[0006] Preferably, the clamping mechanism includes a lead screw and a U-shaped sleeve. The bottom end of the lead screw is vertically fixed with a stud, and the lead screw is threaded to the upper side of the U-shaped sleeve through the stud. A deep groove ball bearing is provided through the lower side of the U-shaped sleeve. The outer ring of the deep groove ball bearing is connected to the lower inner wall of the U-shaped sleeve, and the inner ring of the deep groove ball bearing is fixed to the top of the vertical part.

[0007] Preferably, the ranging mechanism includes a sleeve and a contact. The top side wall of the sleeve has an opening, a groove is provided on the opposite side of the opening, and a scale line is provided on the opening. The bottom of the contact extends downward through the top of the sleeve, and a scale line is provided at the bottom of the contact. The bottom of the contact abuts against a compression spring. A stop block is connected to the side wall of the contact. The stop block is slidably engaged with the groove on the side wall of the sleeve. The right end of the horizontal part is threadedly connected to the bottom end of the sleeve.

[0008] Preferably, the contact includes a conical portion and a cylindrical portion, wherein the bottom end of the conical portion is fixed to the top end of the cylindrical portion.

[0009] Preferably, the scale lines on the opening have a range of 20 divisions, with each division being 1mm.

[0010] The beneficial effects achieved by this utility model are as follows:

[0011] (1) The contact method between the contact and the contact surface of the impact seat adopts point contact. Combined with the rotatable connection design of the connecting rod through the vertical and horizontal parts, the ranging device can be moved, which makes it easy to adjust the height of the impact seat and allow the contact to measure multiple times on the contact surface of the impact seat, thereby improving the measurement accuracy.

[0012] (2) A stop block is connected to the side wall of the contact, and the stop block is limited by the slide groove to prevent the contact from rotating during the movement and improve the measurement accuracy.

[0013] (3) The device has a simple and flexible structure, is easy to use, and has accurate readings. It is suitable for various railway freight cars, improves work efficiency, and avoids the problem of low measurement accuracy caused by the large surface roughness of the impact seat casting. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0015] Figure 2 This is a three-dimensional structure according to an embodiment of the present utility model;

[0016] Figure 3 This is a schematic diagram of the distance measuring mechanism in an embodiment of the present invention;

[0017] Figure 4 This is a diagram showing the state of the structure of this utility model embodiment during use.

[0018] Explanation of reference numerals in the attached drawings: 1. Clamping mechanism; 11. Lead screw; 12. U-shaped ferrule; 13. Stud; 2. Connecting rod; 21. Vertical part; 22. Horizontal part; 3. Distance measuring mechanism; 31. Contact; 32. Stop; 33. Sleeve; 34. Compression spring; 35. Scale line; 4. Deep groove ball bearing; 5. Impact seat; 6. Middle beam; 7. End beam. Detailed Implementation

[0019] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings and embodiments.

[0020] like Figure 1 As shown, a measuring device for measuring the height of an impact seat relative to a center beam includes a clamping mechanism 1, a connecting rod 2, and a ranging mechanism 3. The connecting rod 2 includes a vertical part 21 and a horizontal part 22, which are L-shaped. The vertical part 21 and the horizontal part 22 are rotatably connected. The clamping mechanism 1 is connected to the top end of the vertical part 21, and the right end of the horizontal part 22 is threadedly connected to the ranging mechanism 3.

[0021] A further embodiment of this utility model is as follows: Figure 2 As shown, the clamping mechanism 1 includes a lead screw 11 and a U-shaped sleeve 12. The bottom end of the lead screw 11 is vertically fixed with a stud 13. The lead screw 11 is threaded to the upper side of the U-shaped sleeve 12 through the stud 13. A deep groove ball bearing 4 is provided through the lower side of the U-shaped sleeve 12. The outer ring of the deep groove ball bearing 4 is connected to the lower inner wall of the U-shaped sleeve 12. The inner ring of the deep groove ball bearing 4 is fixed to the top end of the vertical part 21.

[0022] A further embodiment of this utility model is as follows: Figure 3 As shown, the ranging mechanism 3 includes a sleeve 33 and a contact 31. The top side wall of the sleeve 33 has an opening, and a groove is provided on the opposite side of the opening. A scale line 35 is provided on the opening. The bottom of the contact 31 extends downward through the top of the sleeve 33. A scale line is provided at the bottom of the contact 31. The bottom of the contact 31 abuts against a compression spring 34. A stop block 32 is connected to the side wall of the contact 31. The stop block 32 is slidably engaged with the groove on the side wall of the sleeve 33. The right end of the horizontal part 22 is threadedly connected to the bottom end of the sleeve 33. The scale line on the opening has a range of 20 divisions, with each division being 1 mm.

[0023] Measurement process: such as Figure 4 As shown, the U-shaped ferrule 12 is fixed to the flange of the middle beam 6. When the contact 31 is in the tightened state, the stop block 32 in the slide groove is at the top of the slide groove. The scale line at the bottom of the contact 31 is aligned with the top edge of the scale line 35 at the opening of the sleeve 33. At this time, the vertical height from the tip of the contact 31 to the contact surface between the U-shaped ferrule 12 and the lower plane of the flange of the middle beam 6 is 45mm. Rotate the horizontal part 22 of the connecting rod 2 to make the contact 31 of the ranging mechanism contact the impact seat 5 to form a contact surface. Read the scale line of the contact 31, which has moved down a few divisions relative to the scale line 35 on the side wall of the sleeve 33. That is, the height of the impact seat is 45mm plus a few. When the height of the impact seat 5 needs to be adjusted, rotate the horizontal part 22 of the connecting rod 2 to rotate the ranging mechanism 3 to the inside of the end beam 7 to facilitate direct adjustment of the height of the impact seat 5. After the adjustment is completed, rotate the ranging mechanism 3 directly to measure the height of the impact seat 5 until the measurement is adjusted to a suitable height.

[0024] This measuring device is applicable to various railway freight car models, such as the C70 general-purpose open wagon, KM70 coal hopper car, and KZ70 ballast hopper car, where the impact seat assembly height is 49±2mm; the C80E general-purpose open wagon, where the impact seat assembly height is 55mm; the C70E general-purpose open wagon, where the impact seat assembly height is 59±2mm; and the P70 general-purpose boxcar, where the impact seat assembly height is 48±2mm. The measuring range of the measuring device in this embodiment is 45mm to 65mm.

Claims

1. A measuring device suitable for measuring the height of an impact seat relative to a center beam, characterized in that, It includes a clamping mechanism, a connecting rod, and a ranging mechanism. The connecting rod includes a vertical part and a horizontal part, which are L-shaped. The vertical part and the horizontal part are rotatably connected. The clamping mechanism is connected to the top of the vertical part, and the right end of the horizontal part is threadedly connected to the ranging mechanism.

2. The measuring device for measuring the height of the impact seat relative to the center beam according to claim 1, characterized in that, The clamping mechanism includes a lead screw and a U-shaped sleeve. The bottom end of the lead screw is vertically fixed with a stud, and the lead screw is threaded to the upper side of the U-shaped sleeve through the stud. A deep groove ball bearing is installed through the lower side of the U-shaped sleeve. The outer ring of the deep groove ball bearing is connected to the lower inner wall of the U-shaped sleeve, and the inner ring of the deep groove ball bearing is fixed to the top of the vertical part.

3. The measuring device for measuring the height of the impact seat relative to the center beam according to claim 1, characterized in that, The ranging mechanism includes a sleeve and a contact. The top side wall of the sleeve has an opening, and a groove is provided on the opposite side of the opening. A scale line is provided on the opening. The bottom of the contact extends downward through the top of the sleeve. A scale line is provided at the bottom of the contact. The bottom of the contact abuts against a compression spring. A stop block is connected to the side wall of the contact. The stop block is slidably engaged with the groove on the side wall of the sleeve. The right end of the horizontal part is threadedly connected to the bottom end of the sleeve.

4. The measuring device for the height of the impact seat relative to the center beam according to claim 3, characterized in that, The contact includes a conical portion and a cylindrical portion, with the bottom end of the conical portion fixed to the top end of the cylindrical portion.

5. A measuring device for measuring the height of an impact seat relative to a center beam according to claim 3, characterized in that, The scale lines on the opening have a range of 20 divisions, with each division being 1mm.

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