Locomotive underfloor wheel lathe clamp device
By designing a universal fixture device for non-falling wheel starter for DF series, HXD3 series and HXN3B locomotives, the detachable kit is used to adapt to different models, solving the problem of wheel shaking during startup and frequent fixture replacement, achieving time saving, efficiency improvement and safety improvement.
Patent Information
- Application Number
- CN202421242914.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-03
- Publication Date
- 2025-03-04
- Estimated Expiration
- 2034-06-03
AI Technical Summary
When repairing the wheel pair of locomotives, the wheels are prone to trembling in the prior art, resulting in a reduction in the repair accuracy. Different models need to frequently replace tooling and fixtures, which takes a long time and is labor-intensive.
A universal fixture device for non-falling wheel starter for DF series, HXD3 series and HXN3B locomotives is designed. The fixture device uses the axle box characteristics of different models and replaces the adapter kit to suit the wheel starter operation requirements of different models of locomotives.
Reduced the steps of replacing fixtures during startup operations, save time, improve work efficiency, reduce labor intensity, improve startup accuracy, and improve operation safety.
Smart Images
Figure CN222552353U_ABST
Abstract
Description
Technical field:
[0001] The utility model belongs to the technical field of lathe fixtures, and particularly relates to a universal fixture device for wheel-less lathes suitable for DF series diesel locomotives, HXD3 series electric locomotives and HXN3B locomotives. The fixture device utilizes the characteristics of axle boxes of different models and is suitable for wheel lathe operation requirements of different models of locomotives by replacing adapter kits, which reduces the steps of replacing fixtures on the lathe, saves time, improves operation efficiency and reduces labor intensity. Background technology:
[0002] Wheel sets are an important part of the running gear of railway locomotives. With the increase of locomotive mileage, the locomotive wheels will have excessive tread wear, peeling, abrasions, etc., which will affect the safety of train operation. Therefore, when the tread of the locomotive wheel set is worn beyond the limit and has tread defects, the locomotive wheel set needs to be repaired and "shaped" and polished to meet the technical size requirements of the wheelset. Before repairing, the locomotive is towed to the wheel-free lathe by means of a road-rail dual-purpose vehicle. During the repairing process, in addition to the brakes on the left and right sides of the machine tool to fix the repaired wheelset to the left and right, the up and down jumping of the locomotive wheelset will also cause the repairing accuracy to decrease. Therefore, it is necessary to equip the locomotive axle box with a fixture to fix it; in addition, the axle box structures of wheelsets of different models are different, and different structures of fixtures need to be equipped. Each time different models are repaired, the fixtures need to be replaced frequently, and each fixture is heavy, which poses a safety hazard when employees lift it. And each replacement takes a long time, which is time-consuming and labor-intensive. Therefore, a universal clamp device for wheel turning machines suitable for DF series, HXD3 series and HXN3B locomotives is designed to fix the locomotive wheel axle, reduce the steps of replacing the clamp during turning and repair operations, save time, improve work efficiency and reduce labor intensity. Summary of the invention:
[0003] The purpose of the utility model is to overcome the shortcomings existing in the existing locomotive wheel turning and repair process, to seek to design and provide a universal wheel turning machine clamp device suitable for DF series, HXD3 series and HXN3B locomotives, to solve the problem that the wheel is easy to vibrate during the turning and repair process, resulting in reduced turning and repair accuracy, to solve the problem of frequent replacement of tooling fixtures when turning and repairing wheels of different models, and to solve the problem of long time and high labor intensity when frequently replacing fixtures.
[0004] In order to achieve the above-mentioned purpose, the utility model relates to a clamp device for a locomotive wheelless lathe, whose main structure includes: a fixed seat, a trapezoidal pier, a rectangular clamp, a fixed pin hole, a boss and a support block. The fixed seat of the rectangular plate structure is fixed to the swing arm of the wheelless lathe by four mounting bolts, and the fixed seat, the transitional trapezoidal pier and the rectangular clamp are welded to form an integrated structure; the end face of the rectangular clamp is a two-stage stepped structure, and the length of the front end boss is consistent with the thickness of the HXN3B locomotive axle box end cover; two fixing pin holes with through-hole structures are opened on the side of the rectangular clamp, which are used to match and fix the rectangular kit when changing the vehicle model; the support block is a metal block structure, and a pin hole is opened in the center of its bottom, and the pin hole cooperates with the positioning pin on the lathe platform for fixation.
[0005] Furthermore, the support block is a rectangular support block of a rectangular metal block structure, and a pin hole is opened in the center of the bottom thereof, and the pin hole cooperates with the positioning pin on the lathe platform for fixing. The fixture device is used in conjunction with the process pad, and the main structure of the process pad includes a leveling block and a limiting plate. The leveling block is a one-third circular plate structure, and its upper surface is a flat structure. The diameter of the one-third circular arc is the same as the diameter of the observation hole of the locomotive axle box; the side surface of the leveling block is welded with a limiting plate to prevent the process pad from invading the inside of the axle box, and the thickness of the leveling block is the same as the thickness of the locomotive axle box end cover. The fixture device is suitable for HXN3B series locomotives. It is used in pairs symmetrically. The fixing seat equipped with the fixture device is fixed on the swing arms on both sides. When turning and repairing, the locomotive is driven along the track to the position to be processed, and the matching process pad is placed in the observation hole of the axle box. The limit plate is in close contact with the outer end surface of the axle box. The position of the leveling block in the observation hole of the locomotive axle box is adjusted to make the upper surface of the process pad horizontal. During turning and repairing, the wheelset is lifted off the rail surface by the rectangular support block. The fixture device is moved up, down, left and right to a suitable fixed position by adjusting the swing arm, so that the front end of the rectangular fixture is placed above the process pad to form a locking structure, and the HXN3B locomotive wheel axle is fixed, and then turning and repairing is carried out to prevent the wheel from vibrating up and down during the wheelset turning and repairing, which affects the turning and repairing accuracy.
[0006] Furthermore, the support block is a trapezoidal support block of a trapezoidal metal block structure, and a pin hole is provided in the center of its bottom, which cooperates with the positioning pin on the lathe platform for fixing. The clamp device is used in conjunction with a matching tooling and a trapezoidal support block. The main structure of the matching tooling includes a boom and a crossbeam. Two booms are arranged side by side and fixed on the crossbeam. Adjustment bolts are provided at the lower ends of the booms to adjust the distance between the two booms, which is suitable for different axle box distances. Bolt holes are provided on the upper parts of the two booms for matching and fixing on the bolt holes of the axle box of the DF series locomotive. The trapezoidal support block is a trapezoidal metal block structure to adapt to and support the bottom structure of the axle box of the DF series locomotive. A pin hole is provided in the center of its bottom, which cooperates with the positioning pin on the lathe platform for fixing. This fixture is suitable for DF series locomotives. It is used in pairs and symmetrically. When the vehicle type needs to be changed, the rectangular support block is removed from the positioning pin of the lathe platform, and the trapezoidal support block is installed. The fixing seat equipped with the fixture is fixed to the swing arms on both sides. When lathe repair, the locomotive is driven along the track to the processing position, the fixing bolts at the lower end of the axle box end cover are removed, and the matching tooling is fixed to the outer axle box of the locomotive wheel. During lathe repair, the wheelset is lifted off the rail surface by the trapezoidal support block, so that the front end of the rectangular fixture is placed above the crossbeam of the matching tooling. By adjusting the swing arm to move up and down and left and right, the fixture device is driven to a suitable fixed position, thereby pressing the crossbeam to form a locking structure, fixing the wheel axle of the DF series locomotive, and then lathe repair is carried out to prevent the wheels from vibrating up and down during lathe repair, which affects the lathe repair accuracy.
[0007] Furthermore, a rectangular kit is provided on the outside of the rectangular clamp, which is a rectangular barrel structure with an open end, and its internal cross-sectional dimensions match the cross-sectional dimensions of the rectangular clamp. Two fixing pin holes of through-hole structures are provided on the two sides of the rectangular kit, and two fixing pins of cylindrical structures pass through the fixing pin holes to fix the rectangular kit and the rectangular clamp together; a fixing column base of rectangular plate structure is welded to the other end of the rectangular kit, and two horizontally arranged cylindrical fixing columns are welded on the fixing column base, and the ends of the fixing columns are semicircular structures, so that the fixing columns can be easily inserted into the axle box lifting holes of HXD3 electric locomotives; the support blocks are rectangular support blocks, and the clamp device is suitable for HXD3 series locomotives. When in use, they are symmetrically arranged in pairs, and the fixing seats equipped with the clamp device are fixed to the swing arms on both sides. When turning and repairing, the locomotive is driven along the track to the position to be processed, and the axle box is lifted off the rail by the rectangular support block. By adjusting the swing arm to move up, down, left and right, the clamp device is driven to a suitable fixed position, so that the fixing columns on both sides are respectively inserted into the outer axle box lifting holes of the locomotive to apply downward pressure, fix the wheel axle, and then turn and repair.
[0008] Compared with the existing clamps, the utility model is suitable for turning and repairing of locomotives of different models through a detachable kit, which reduces the steps of replacing the clamps during turning and repairing, saves time, reduces labor intensity, improves work efficiency, and improves work safety; its structural design is simple,
[0009] It is easy to use, safe and reliable, easy to promote and popularize, and has a friendly application environment. Description of the drawings:
[0010] Figure 1 The utility model is a schematic diagram of the overall structural principle of a universal clamp used for HXD3 series locomotives.
[0011] Figure 2 It is a schematic diagram of the overall structural principle of the universal clamp used for DF series locomotives after the kit is removed.
[0012] Figure 3 It is a schematic diagram of the overall structural principle of the universal clamp used for HXN3B series locomotives after the kit is removed.
[0013] Figure 4 The utility model is a schematic diagram of the structural principle of a matching tool used when turning and repairing DF series vehicles.
[0014] Figure 5 The utility model is a schematic diagram of the structural principle of a matching process pad used when turning and repairing HXN3B series locomotives.
[0015] Figure 6 It is an installation schematic diagram of the utility model installed on a lathe.
[0016] Explanation of the reference numerals: fixed seat 1, trapezoidal pier 2, rectangular clamp 3, fixed pin hole 4, rectangular kit 5, fixed pin 6, fixed column 7, fixed column base 8, lathe 9, swing arm 10, track 11, boss 12, process pad 13, leveling block 14, limit plate 15, matching tooling 16, boom 17, crossbeam 18, rectangular support block 19, trapezoidal support block 20. Specific implementation method:
[0017] The present invention will be further described below through specific embodiments in conjunction with the accompanying drawings.
[0018] Embodiment 1:
[0019] The clamp device of the locomotive wheel-free lathe involved in this embodiment has a main structure comprising: a fixing seat 1, a trapezoidal pier 2, a rectangular clamp 3, a fixing pin hole 4, a rectangular kit 5, a fixing pin 6, a fixing column 7, a fixing column base 8 and a rectangular support block 19; the fixing seat 1 of a rectangular plate structure is fixed to the swing arm 10 on the wheel-free lathe by four mounting bolts, and the fixing seat 1, the transitional trapezoidal pier 2 and the rectangular clamp 3 form an integral structure by welding; the side of the rectangular clamp 3 is provided with two fixing pin holes 4 of through-hole structure for fixing the rectangular kit 5, and the rectangular kit 5 is a rectangular barrel structure with one end open, and its internal cross-sectional dimensions match the cross-sectional dimensions of the rectangular clamp 3 Two fixing pin holes 4 with through-hole structures are provided on both sides of the rectangular kit 5. The rectangular kit 5 can be sleeved on the outside of the rectangular fixture 3, and the fixing pin holes 4 of the two are aligned. Two fixing pins 6 with cylindrical structures pass through the fixing pin holes 4 to fix the rectangular kit 5 and the rectangular fixture 3 together; a fixing column base 8 with a rectangular plate structure is welded to the other end of the rectangular kit 5, and two horizontally arranged cylindrical fixing columns 7 are welded on the fixing column base 8. The end of the fixing column 7 is a semicircular structure, which is convenient for inserting into the lifting hole of the axle box of the HXD3 electric locomotive; the rectangular support block 19 is a rectangular metal block structure, and a pin hole is provided in the center of its bottom, and the pin hole cooperates with the positioning pin on the lathe platform for fixation.
[0020] This embodiment is applicable to HXD3 series locomotives. When in use, they are symmetrically arranged in pairs. The fixing seat 1 equipped with the clamp device is fixed on the swing arms 10 on both sides. During turning and repair, the locomotive is driven along the track 11 to the position to be processed, and the axle box is lifted off the rail by the rectangular support block 19. By adjusting the swing arm 10 to move up, down, left and right, the clamp device is driven to a suitable fixed position, and the fixing columns 7 on both sides are respectively inserted into the outer axle box lifting holes of the locomotive to apply downward pressure to fix the wheel axle, and then turning and repair are carried out.
[0021] Embodiment 2:
[0022] The clamp device for the locomotive wheel lathe involved in this embodiment has the same main structure as that of Embodiment 1. The end face of the rectangular clamp 3 is a two-stage stepped structure, and the length of the front end boss 12 is consistent with the thickness of the end cover of the HXN3B locomotive axle box. The clamp device is used in conjunction with a process pad 13. The main structure of the process pad 13 includes a leveling block 14 and a limiting plate 15. The leveling block 14 is a one-third circular plate structure, and its upper surface is a flat structure. The diameter of the one-third circular arc is the same as the diameter of the observation hole of the locomotive axle box. The side surface of the leveling block 14 is welded with a limiting plate 15 to prevent the process pad from invading the interior of the axle box. The thickness of the leveling block 14 is the same as the thickness of the end cover of the locomotive axle box.
[0023] The present embodiment is applicable to HXN3B series locomotives, which are symmetrically arranged in pairs when in use. When the vehicle type needs to be changed, the two fixing pins 6 are pulled out, and after the rectangular kit 5 is removed, the fixing seat 1 equipped with the clamp device is fixed on the swing arms 10 on both sides. During boring and repairing, the locomotive is driven along the track 11 to the position to be processed, and the matching process pad 13 is placed in the observation hole of the axle box. The limit plate 15 is in close contact with the outer end surface of the axle box, and the position of the leveling block 14 in the observation hole of the locomotive axle box is adjusted so that the upper surface of the process pad 13 is placed horizontally. During boring and repairing, the wheelset is lifted off the rail surface by the rectangular support block 19, and the clamp device is moved up, down, left, and right to a suitable fixed position by adjusting the swing arm 10, so that the front end of the rectangular clamp 3 is placed above the process pad 13 to form a locking structure, and the wheel axle of the HXN3B locomotive is fixed, and then boring and repairing are carried out to prevent the wheel from vibrating up and down during the boring and repairing of the wheelset, thereby affecting the boring and repairing accuracy.
[0024] Embodiment 3:
[0025] The main structure of the locomotive wheel lathe fixture device involved in this embodiment is the same as that of embodiment 1. The fixture device is used in conjunction with a matching tool 16 and a trapezoidal support block 20. The main structure of the matching tool 16 includes a suspension arm 17 and a crossbeam 18. Two suspension arms 17 are arranged side by side and fixed on the crossbeam 18. Adjustment bolts are provided at the lower ends of the suspension arms 17 to adjust the distance between the two suspension arms 17, which is suitable for different axle box distances. Bolt holes are provided on the upper parts of the two suspension arms 17 for matching and fixing on the bolt holes of the axle box of the DF series locomotive. The trapezoidal support block 20 is a trapezoidal metal block structure to adapt to and support the bottom structure of the axle box of the DF series locomotive. A pin hole is provided in the center of its bottom, and the pin hole cooperates with the positioning pin on the lathe platform for fixing.
[0026] This embodiment is applicable to DF series locomotives. When in use, they are symmetrically arranged in pairs. When the vehicle type needs to be changed, the two fixing pins 6 are pulled out, and after the rectangular kit 5 is removed, the fixing seat 1 equipped with the clamp device is fixed on the swing arms 10 on both sides. When turning and repairing, the locomotive is driven along the track 11 to the position to be processed, the fixing bolts at the lower end of the axle box end cover are removed, and the matching tooling 16 is fixed to the outer axle box of the locomotive wheel. During turning and repairing, the wheelset is lifted off the rail surface through the trapezoidal support block 20, so that the front end of the rectangular clamp 3 is placed above the crossbeam 18 of the matching tooling 16. By adjusting the swing arm 10 to move up and down and left and right, the clamp device is driven to a suitable fixed position, thereby pressing the crossbeam 18 to form a locking structure, fixing the wheel axle of the DF series locomotive, and then turning and repairing are carried out to prevent the wheels from vibrating up and down during the turning and repairing of the wheelset, which affects the turning and repairing accuracy.
Claims
1. A locomotive wheel lathe fixture device, characterized in that The main structure includes a fixed seat, a trapezoidal pier, a rectangular clamp, a fixed pin hole, a boss and a support block. The fixed seat of the rectangular plate structure is fixed to the swing arm of the wheel-free lathe by four mounting bolts. The fixed seat, the transitional trapezoidal pier and the rectangular clamp are welded to form an integrated structure. The end face of the rectangular clamp is a two-stage stepped structure, and the length of the front end boss is consistent with the thickness of the axle box end cover of the HXN3B locomotive. Two fixing pin holes with through-hole structures are opened on the side of the rectangular clamp, which are used to match the fixing rectangular kit when changing the vehicle model. The support block is a metal block structure with a pin hole in the center of the bottom, which cooperates with the locating pin on the lathe platform for fixation.
2. A locomotive underfloor wheel lathe fixture device according to claim 1, characterized in that The support block is a rectangular support block with a rectangular metal block structure, and a pin hole is opened in the center of its bottom, which cooperates with the positioning pin on the lathe platform for fixation. The clamp device is used in conjunction with the process pad. The main structure of the process pad includes a leveling block and a limit plate. The leveling block is a one-third circular plate structure, and its upper surface is a flat structure. The diameter of the one-third arc is the same as the diameter of the observation hole of the locomotive axle box; the limit plate is welded on the side surface of the leveling block to prevent the process pad from invading the inside of the axle box. The thickness of the leveling block is the same as the thickness of the locomotive axle box end cover, and it is suitable for HXD3 series locomotives.
3. The clamp device for a locomotive underfloor wheel lathe according to claim 1, characterized in that The support block is a trapezoidal support block with a trapezoidal metal block structure to adapt to and support the bottom structure of the axle box of the DF series locomotive. A pin hole is opened in the center of the bottom, and the pin hole cooperates with the locating pin on the lathe platform for fixation; the clamp device is used in conjunction with the matching tooling and the trapezoidal support block. The main structure of the matching tooling includes a boom and a crossbeam. The two booms are arranged side by side and fixed on the crossbeam. There are adjustment bolts at the lower ends of the booms, which can adjust the distance between the two booms and are suitable for different axle box distances; bolt holes are provided on the upper parts of the two booms for matching and fixing on the bolt holes of the axle box of the DF series locomotive. The clamp device is suitable for DF series locomotives.
4. The clamp device for a locomotive underfloor wheel lathe according to claim 1, characterized in that The rectangular clamp is covered with a rectangular kit, which is a rectangular barrel structure with an open end, and its internal cross-sectional size matches the cross-sectional size of the rectangular clamp. Two fixing pin holes with through-hole structures are opened on both sides of the rectangular kit, and two fixing pins with cylindrical structures pass through the fixing pin holes to fix the rectangular kit and the rectangular clamp together; a fixing column base with a rectangular plate structure is welded to the other end of the rectangular kit, and two horizontally arranged cylindrical fixing columns are welded on the fixing column base, and the end of the fixing column is a semicircular structure, which is convenient for inserting the fixing column into the lifting hole of the HXD3 electric locomotive axle box; the support block is a rectangular support block, and the clamp device is suitable for HXD3 series locomotives.