Steel rail welding seam fine grinding machine

Abstract

The invention relates to a steel rail welding seam fine grinding machine which comprises a power source, a control mechanism, an angle deflection mechanism, a grinding transverse movement transmission mechanism and a lifting mechanism. The angle deflection mechanism comprises a deflection motor, the grinding transverse movement transmission mechanism comprises a grinding main motor and a transverse movement motor, and the lifting mechanism comprises a lifting motor. The power source, the deflection motor, the grinding main motor, the transverse moving motor and the lifting motor are electrically connected with the control mechanism. The walking supporting mechanism is used for installing the grinding transverse movement transmission mechanism and the angle deflection mechanism, and the lifting mechanism is connected to the grinding transverse movement transmission mechanism; the walking supporting mechanism is connected with a rail crossing supporting mechanism and a rail clamping fixing mechanism. The problems that in the prior art, the grinding quality is poor, the feeding precision is relatively low, grinding is judged according to artificial experience, and the labor intensity is large can be solved.

Description

Technical Field

[0001] This application relates to the technical field of rail maintenance and grinding equipment. Specifically, it relates to a rail weld precision grinder. Background Art

[0002] As the carrier for railway locomotives to run, when rails are laid on the railway line site, first, the base materials with a standard length of 25 meters or 100 meters are transported to the rail welding base, welded and connected into seamless rails with a length of 500 meters, and then transported to the railway line for laying. When laying, special equipment is used to weld the 500-meter-long rails in sequence to form seamless rails for the whole line, so as to ensure the smoothness of the train operation.

[0003] When rails are welded at the welding base or on-site construction, welds will be formed at the welding joints, and there are varying degrees of unevenness on the top and side surfaces of the welds, which cannot meet the industry standard requirement that the weld sag is not greater than 0.3 mm. Therefore, it is necessary to grind the welds and the rails on both sides of the welds to meet the industry standard requirements.

[0004] Currently, on-site personnel generally use hand-held straight grinders, angle grinders, and profiling grinders to grind the welds. However, due to the special spatial position, the limitation of the skylight time limit, and the problem that the running track of the grinding tool during operation is entirely controlled by manpower, it will lead to high manual labor intensity and low efficiency, and it is easy to cause low overall or local grinding accuracy after welding the rails, resulting in stress concentration on the rails. Even worse, it will cause harmful grinding with a large cutting amount.

[0005] Therefore, it is very necessary to design an automatic weld precision grinder that can improve the grinding efficiency, reduce the influence of human factors on the grinding accuracy, and reduce the labor intensity. Summary of the Invention

[0006] The purpose of this application is to provide a rail weld precision grinder, which can solve the problems of poor grinding quality, relatively low feeding accuracy, grinding judged by manual experience, and high labor intensity in the prior art.

[0007] To achieve the above purpose, the present invention provides a rail weld precision grinder, including: a power source, a control mechanism, an angle deflection mechanism, a grinding transverse movement transmission mechanism, and a lifting mechanism;

[0008] The angle deflection mechanism includes a deflection motor, the grinding transverse movement transmission mechanism includes a grinding main motor and a transverse movement motor, and the lifting mechanism includes a lifting motor;

[0009] The power source, the deflection motor, the main grinding motor, the transverse movement motor, and the lifting motor are respectively electrically connected to the control mechanism. The control mechanism includes an electric control box with built-in profile analysis software and an operation panel, and the operation panel is electrically connected to the electric control box;

[0010] and a traveling support mechanism for installing the grinding transverse movement transmission mechanism and the angle deflection mechanism, and the lifting mechanism is connected to the grinding transverse movement transmission mechanism;

[0011] The traveling support mechanism is connected with a cross-rail support mechanism and a rail clamping and fixing mechanism. The cross-rail support mechanism is used for cross-rail support of the rail weld grinder, and the rail clamping and fixing mechanism is used for fixing the rail weld grinder.

[0012] In an alternative embodiment, the traveling support mechanism includes a frame welding assembly, and a wheel support assembly, a profiling wheel assembly, a cross-rail rod connection assembly, and a lifting handle respectively connected to both sides of the frame welding assembly;

[0013] The wheel support assembly is arranged outside the frame welding assembly and includes a protective cover and a frame connecting plate. A support seat is arranged on the frame connecting plate, a connecting slider assembly is arranged on the support seat, and a parallel spring shaft and a guide shaft are installed on the support seat. Two identical return springs are sleeved on the spring shaft, and the connecting slider assembly is connected to the middle of the two return springs and is slidably installed on the guide shaft.

[0014] In an alternative embodiment, two wheel rollers are connected to the bottom of the connecting slider assembly. The wheel rollers are arranged at intervals and vertically for clamping on both sides of the rail;

[0015] The profiling wheel assembly includes a horizontally arranged profiling roller, and the profiling roller is tangent to the rail surface of the rail.

[0016] In an alternative embodiment, the grinding transverse movement transmission mechanism includes a transverse movement transmission mechanism and a grinding transmission mechanism;

[0017] The transverse movement transmission mechanism includes a support groove frame, and the profiling wheel assembly is fixedly connected to the lower sides of both ends of the support groove frame;

[0018] A sliding cross beam is arranged on the support groove frame, a sliding component is arranged on the sliding cross beam, and a tensioning sprocket is connected to the sliding component;

[0019] The support trough frame is pivotally connected to the frame welding through cams located at both side ends. An active sprocket and an auxiliary sprocket are respectively arranged at both ends of the support trough frame. The active sprocket is connected to the output shaft of the transverse movement motor. A chain is wound around between the active sprocket, the auxiliary sprocket and the tensioning sprocket;

[0020] The tensioning sprocket is fixedly installed on the sliding component, and the grinding transmission mechanism is fixedly connected to the sliding component;

[0021] A support protective cover is connected to the side of the support trough frame, and a wire harness fixing sliding chain is arranged at the top of the support protective cover.

[0022] In an alternative embodiment, the grinding transmission mechanism includes a transmission box body. An active transmission wheel and a driven transmission wheel are arranged inside the transmission box body. The active transmission wheel is connected to the output shaft of the main grinding motor. A multi-wedge belt is wound around between the active transmission wheel and the driven transmission wheel;

[0023] The transmission box body includes an upper transmission box body and a lower transmission box body which are split and spliced. A tensioning component is fixedly installed between the upper transmission box body and the lower transmission box body. A side plate is connected to the side of the transmission box body;

[0024] The driven transmission wheel is fixedly connected with a main shaft belt pulley shaft.

[0025] In an alternative embodiment, the main shaft belt pulley shaft is connected with a lifting shaft through a sliding key. The lifting shaft is fixedly connected with a grinding wheel fixing disc. The grinding wheel fixing disc is connected with a grinding wheel. The bottom of the lower transmission box body is connected with a grinding wheel cover arranged outside the grinding wheel.

[0026] In an alternative embodiment, the lifting mechanism includes a feed handwheel. The feed handwheel is connected with a lifting handwheel shaft, and an active gear is connected to the lifting handwheel shaft;

[0027] The output shaft of the lifting motor is connected with a feed screw through a coupling. A driven gear is hoop-connected to the feed screw. A synchronous belt is arranged between the active gear and the driven gear. The lifting motor is installed on a lifting motor fixing frame. The active gear, the driven gear and the synchronous belt are arranged inside a gear and belt cover. The gear and belt cover is fixedly connected to the lower part of the lifting motor fixing frame;

[0028] A feed flange through which the feed lead screw passes is provided at the lower part of the gear belt cover. A feed sliding sleeve is connected to the lower part of the feed flange. A feed sliding sleeve is installed inside the feed sliding sleeve. The feed sliding sleeve is connected to the feed sliding sleeve through a sliding key. The feed lead screw is threadedly connected with a feed nut, and the feed nut is connected to the feed sliding sleeve through a screw.

[0029] The feed sliding sleeve is connected to the lifting shaft through a feed bearing and a bearing retaining ring. The top end of the lifting shaft includes a connecting straight pipe section at the top end. The inner ring of the feed bearing is fixed by a hoop outside the connecting straight pipe section. The feed sliding sleeve fixes the outer ring of the feed bearing by a hoop. The feed lead screw is rotatably inserted inside the connecting straight pipe section.

[0030] In an alternative embodiment, the angle deflection mechanism is arranged outside the grinding transverse movement transmission mechanism and includes a deflection motor fixing plate connected to the frame welding for fixedly installing the deflection motor. A sector-shaped flipping driving gear is connected to the output shaft of the deflection motor. Flipping driven gears are connected to the cams at both side ends of the support groove frame. The sector-shaped flipping driving gear is meshed and connected with the flipping driven gears.

[0031] A fixing seat is arranged at the lower part of the deflection motor fixing plate. The cam is connected to the outside of the profiling wheel assembly and includes cam shafts at both side ends of the cam. The cam shafts are rotatably connected to the fixing seat through bearings.

[0032] In an alternative embodiment, the cross-rail support mechanism includes a cross-rail rod, a stabilizing cross beam rod and cross-rail support wheels. The root of the cross-rail rod is connected to the cross-rail rod connection assembly. The stabilizing cross beam rod is connected between the cross-rail rods. The cross-rail support wheels are connected to the ends of the cross-rail rods through brackets.

[0033] In an alternative embodiment, the rail clamping and fixing mechanism includes a rail clamping welding. The rail clamping welding includes two rail clamping steel plates, and a connecting shaft and a welding block are arranged between the rail clamping steel plates.

[0034] Clamping openings for clamping the rail are arranged on the rail clamping steel plates. Anti-disengagement hooks are connected to the clamping opening parts. A locking screw component is connected to the side part of the rail clamping welding. The locking screw component passes through the welding block and can abut against and lock the side wall of the rail.

[0035] Through the rail weld grinder in the present application, automatic grinding of rail welds can be carried out, with high grinding accuracy, good grinding quality, no pollution and environmental friendliness. By adopting a fully electric control automatic control design, the dependence on manual experience for the grinding scheme is reduced, the labor intensity of the operators is reduced, and the grinding efficiency is improved.

[0036] Other features and advantages of the present application will be described in detail in the following specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0038] Figure 1 It is a schematic diagram of the overall structure of the rail weld precision grinding machine in the present application;

[0039] Figure 2 It is a schematic diagram of the structure of the traveling support mechanism;

[0040] Figure 3 It is a schematic diagram of the structure of the wheel support assembly;

[0041] Figure 4 It is a schematic diagram of the overall structure of the grinding traverse drive mechanism;

[0042] Figure 5 It is a schematic diagram of the structure of the traverse drive mechanism;

[0043] Figure 6 It is a schematic cross-sectional view of the grinding drive mechanism;

[0044] Figure 7 It is a schematic cross-sectional view of the lifting mechanism;

[0045] Figure 8 It is a schematic diagram of the structure of the angle deflection mechanism;

[0046] Figure 9 It is a schematic diagram of the structure of the cross-rail support mechanism;

[0047] Figure 10 It is a schematic diagram of the structure of the rail clamping and fixing mechanism;

[0048] Figure 11 It is a schematic diagram of the structure of the control mechanism.

[0049] ICON:

[0050] 0 - Rail; 1 - Cross-rail support mechanism; 2 - Power source; 3 - Grinding traverse drive mechanism; 4 - Lifting mechanism; 5 - Control mechanism; 6 - Traveling support mechanism; 7 - Angle deflection mechanism; 8 - Rail clamping and fixing mechanism; 9 - Frame welding;

[0051] 10-wheel support assembly; 101-protective cover; 102-frame connecting plate; 103-support seat; 104-reset spring; 105-spring shaft; 106-guide shaft; 107-connecting slider assembly; 108-wheel roller; 109-fixed seat;

[0052] 11-profiling wheel assembly; 111-profiling roller;

[0053] 12-cross-rail rod connection assembly; 13-lifting handle;

[0054] 14-transverse transmission mechanism; 141-supporting slot frame; 142-sliding beam; 143-sliding assembly; 144-tensioning sprocket; 145-chain; 146-transverse motor; 147-driving sprocket; 148-supporting protective cover; 149-wiring harness fixing sliding chain;

[0055] 15-grinding transmission mechanism; 150-grinding main motor; 151-driving transmission wheel; 152-multi-V belt; 153-tensioning assembly; 154-grinding wheel cover; 155-grinding wheel; 156-driven transmission wheel; 157-lower transmission box; 158-upper transmission box; 159-side plate; 1510-spindle pulley shaft; 1511-lifting shaft; 1512-grinding wheel fixing plate;

[0056] 16-lifting motor; 17-coupling; 18-lifting motor fixing bracket; 19-driven gear; 20-feed flange; 21-feed screw; 22-feed sleeve; 23-feed sleeve; 24-feed nut; 25-lifting handwheel shaft; 26-driving gear; 27-gear belt cover; 28-feed handwheel; 29-synchronous belt; 30-deflection motor; 31-deflection motor fixing plate; 32-fan-shaped flip driving gear; 33-flip driven gear; 34-electric control box; 35-display screen; 36-operation panel; 37-cross-rail rod; 38-support wheel; 39-stable crossbeam rod; 40-rail clamping welding; 41-anti-unhooking; 42-locking screw assembly; 43-connecting shaft; 44-rail clamping steel plate; 45-cam; 46-camshaft. DETAILED DESCRIPTION

[0057] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0058] In the description of the present application, it should be noted that the orientation or positional relationship indicated by terms such as "inner" and "outer" is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of this application is customarily placed during use. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application. In addition, terms such as "first" and "second" are only used for distinguishing descriptions and cannot be construed as indicating or implying relative importance.

[0059] In the description of the present application, it should also be noted that unless otherwise clearly specified and limited, the terms "set" and "connect" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0060] The rail weld grinding machine in the present application mainly grinds the rail welds. By setting up a control mechanism and electrically connecting the drive components of each sub-mechanism to the control mechanism, combined with the built-in profile analysis software included in the control mechanism, the automatic grinding of the rail welds is realized.

[0061] See Figure 1 , the rail weld grinding machine in the present invention includes: a power source 2, a control mechanism 5, an angle deflection mechanism 7, a grinding transverse movement transmission mechanism 3, and a lifting mechanism 4. At the same time, it also includes a traveling support mechanism 6, a cross-rail support mechanism 1, and a rail clamping and fixing mechanism 8 of the mechanical structure.

[0062] Among them, the power source 2 mainly uses a power battery pack to provide power for the operation of the equipment.

[0063] The control mechanism 5 mainly includes an electric control box with built-in profile analysis software and an operation panel 36. The operation panel 36 is electrically connected to the electric control box, and the grinding machine is controlled to perform grinding operations in a man-machine interaction manner.

[0064] The angle deflection mechanism 7 includes a deflection motor 30, the grinding transverse movement transmission mechanism 3 includes a grinding main motor 150 and a transverse movement motor 146, and the lifting mechanism 4 includes a lifting motor 16. From the perspective of automatic electric control, the power source 2, the deflection motor 30, the grinding main motor 150, the transverse movement motor 146, and the lifting motor 16 are respectively electrically connected to the control mechanism 5.

[0065] The angle deflection mechanism 7 mainly includes a motor drive assembly, a gear pair assembly, and related connecting parts, etc. The deflection motor 30 drives the grinding transverse movement transmission mechanism 3 and the lifting mechanism 4 to deflect left and right, so as to realize the large-angle grinding operation of the weld.

[0066] The traveling support mechanism 6 mainly includes a frame assembly and a roller support assembly 10, which are used to carry other mechanisms and perform traveling work on the rail 0. The traveling support mechanism 6 is used to install the grinding transverse movement transmission mechanism 3 and the angle deflection mechanism 7, and the lifting mechanism 4 is connected to the grinding transverse movement transmission mechanism 3.

[0067] The grinding transverse movement transmission mechanism 3 mainly includes a grinding main motor 150, a transverse movement motor 146, a sprocket assembly, a transverse movement support frame assembly, a transmission part, a grinding wheel 155, etc. The chain drive is driven by the transverse movement motor 146 to realize the automatic transverse movement grinding operation of the grinding assembly.

[0068] The lifting mechanism 4 mainly includes a drive assembly and a lead screw-nut thread pair, which are used to drive the grinding mechanism to lift, and improve the grinding operation quality by controlling the feed rate and feed accuracy.

[0069] The cross-rail support mechanism 1 and the rail clamping and fixing mechanism 8 are connected to the traveling support mechanism 6. The cross-rail support mechanism 1 is used to perform cross-rail support on the rail weld grinder, and the rail clamping and fixing mechanism 8 is used to fix the rail weld grinder.

[0070] Specifically, the cross-rail support mechanism 1 mainly includes two groups of cross-rail rods 37, support wheels 38, a cross beam, etc., which are used to perform cross-rail support to stabilize the equipment body and prevent the equipment from derailing when grinding at a large angle.

[0071] The rail clamping and fixing mechanism 8 mainly includes a fixing frame, a connecting shaft 43, a locking screw assembly 42, etc., which are used to fix the whole machine to prevent the equipment from moving along the extension direction of the rail 0 during the grinding process.

[0072] During the use process, first install the cross-rail support mechanism 1 and the rail clamping and fixing mechanism 8 to fix the whole equipment at the grinding position; then use the profile analysis software built in the operating system to perform profile analysis on the weld position to be ground, formulate an automatic grinding plan, and manually review and confirm. Finally, press a button to start the control mechanism 5, and the equipment completes the grinding operation on the weld position according to the grinding plan by automatically adjusting the angle deflection mechanism 7, the grinding transverse movement transmission mechanism 3 and the lifting mechanism 4.

[0073] In the rail weld grinder of the present invention, the grinding transverse movement transmission mechanism 3 uses a stepping motor to drive the grinding assembly, replacing the operation mode that requires manual pushing for the grinding assembly to grind the weld, solving the problem of high labor intensity, and making it have the advantage of uniform grinding.

[0074] The lifting mechanism 4 adopts an integrated operation combination of a stepping motor and a handwheel, solving the problems of poor grinding quality and relatively low feed accuracy of the grinding machine, and making it have the advantages of high feed accuracy and excellent grinding quality.

[0075] The control mechanism 5 is embedded with a profile analysis module, which can automatically analyze and generate a grinding plan, solving the problems of relying entirely on manual experience for judgment and high labor intensity during grinding, making it intelligent and having high grinding efficiency.

[0076] The traveling support mechanism 6, the cross-rail support mechanism 1 and the rail clamping and fixing mechanism 8 are connected, enabling the equipment to be stable on the rail 0 without derailing, tipping over or moving along the rail 0, solving the problem of high labor intensity of operators caused by the large weight of the equipment and lack of support, and at the same time overcoming the problem of the equipment moving horizontally due to its own resistance during automatic grinding, making it have the advantages of stable structure and low operation intensity.

[0077] Through the rail weld precision grinding machine in the present invention, not only the problems existing in the existing weld grinding device are solved, but also the performance and quality of the grinding machine are further improved, realizing the transformation of the grinding machine towards miniaturization, intelligence, automation and digitization.

[0078] From the perspective of the grinding process and mechanism, the rail weld precision grinding machine is fixed on both sides of the grinding weld area to ensure that the grinding wheel 155 can grind an area of 0.4 meters before and after the weld position.

[0079] During grinding, all structures are adjusted to the initial state, the power battery pack is connected, the main power switch is turned on, and the switch of the control mechanism 5 is turned on to supply power to the whole machine control system.

[0080] The profile of the weld area to be ground is imported into the profile analysis software. After analysis, a grinding plan is obtained. Manually adjust to the grinding "zero point", start the automatic control button, and the control mechanism 5 controls the lifting motor 16 and the deflection motor 30 to reach the specified position according to the set value of the grinding plan. Subsequently, the weld area is automatically ground according to the preset plan until the required profile is ground. This grinding work process does not require manual active intervention throughout, but personnel need to monitor the grinding status in real time.

[0081] From the perspective of the structure of the branch sub-mechanism, see Figure 2 , the traveling support mechanism 6 includes a frame welding 9 and a wheel support component 10, a cross-rail rod connection component 12 and a lifting handle 13 respectively connected to both sides of the frame welding 9.

[0082] The profiling wheel assembly 11 is arranged on the two-way inner side of the frame welding 9. The profiling wheel assembly 11 ensures that the grinding wheel 155 in the grinding mechanism is always tangent to the rail 0, ensuring the continuity of the grinding angle and thus ensuring the grinding quality.

[0083] The cross-rail rod connection component 12 ensures the quickness and accuracy of the connection with the cross-rail support mechanism 1.

[0084] The lifting handle 13 ensures the convenience of equipment handling.

[0085] The frame welding 9 serves as the overall machine frame, ensuring the stability of the equipment.

[0086] Further, the wheel support assembly 10 consists of a protective cover 101, a frame connecting plate 102, a support seat 103, a return spring 104, a spring shaft 105, a guide shaft 106, a connecting slider assembly 107, and a wheel assembly, as Figure 3 shown.

[0087] Specifically, the wheel support assembly 10 is arranged on the outside of the frame welding 9, including a protective cover 101 and a frame connecting plate 102. A support seat 103 is arranged on the frame connecting plate 102, and a connecting slider assembly 107 is arranged on the support seat 103. A parallel spring shaft 105 and a guide shaft 106 are installed on the support seat 103. Two identical return springs 104 are threaded through the spring shaft 105. The connecting slider assembly 107 is connected to the middle of the two return springs 104 and is slidably installed on the guide shaft 106.

[0088] The wheel support assembly 10 is used to guide the rail weld grinder to move along the direction of the rail 0. At the same time, the setting of the two return springs 104 and the connecting slider assembly 107 enables the whole machine to move left and right horizontally when the profiling wheel assembly 11 is always tangent to the rail 0 during the angle flipping of the grinding equipment, solving the problems of preventing the equipment from tipping over, toppling, and interfering with the rail 0 in the necessary flipping state.

[0089] Specifically, when the grinding transverse transmission mechanism 3 drives the grinding equipment to be laterally offset relative to the frame welding 9 of the traveling support mechanism 6 under the action of the angle deflection mechanism 7, due to the gravity generated by the lateral offset, it forces the whole frame welding 9 to move left and right horizontally. One of the return springs 104 follows the left and right movement and generates a tensile deformation, and the other return spring 104 generates a compressive deformation. Under the action of the two return springs 104, it can maintain the stable translation of the frame welding 9 on the rail 0.

[0090] Two wheel rollers 108 are connected to the bottom of the connecting slider assembly 107. The wheel rollers 108 are arranged at intervals and vertically, and are used to clamp on both sides of the rail 0, constituting a vertical constraint on the frame welding 9.

[0091] The profiling wheel assembly 11 includes a horizontally arranged profiling roller 111, and the profiling roller 111 is tangent to the rail surface of the rail 0. The horizontally arranged profiling roller 111 can keep the roller surface tangent to the rail surface of the rail 0 under the deflection state of the grinding transverse transmission mechanism 3, so that the grinding transverse transmission mechanism 3 can deflect flexibly and effectively.

[0092] See Figures 4 - 6, the grinding transverse transmission mechanism 3 includes a transverse transmission mechanism 14 and a grinding transmission mechanism 15, which are mainly used to transmit power and directly perform grinding operations on the rail weld.

[0093] The transverse transmission mechanism 14 includes a support trough frame 141. The profiling wheel assembly 11 is fixedly connected to the lower sides of both ends of the support trough frame 141, enabling the profiling roller 111 of the profiling wheel assembly 11 to deflect relative to the frame welding 9 while remaining tangent to the rail 0.

[0094] A sliding cross beam 142 is arranged on the support trough frame 141. A sliding assembly 143 is arranged on the sliding cross beam 142, and a tensioning sprocket 144 is connected to the sliding assembly 143.

[0095] The support trough frame 141 is pivotally connected to the frame welding 9 through cams 45 located at both side ends, enabling the support trough frame 141 to deflect under the drive of the angle deflection mechanism 7.

[0096] The grinding transmission mechanism 15 is connected to the support trough frame 141, and the lifting mechanism 4 is connected to the grinding transmission mechanism 15, thereby enabling the grinding transverse transmission mechanism 3 to deflect relative to the frame welding 9.

[0097] The drive of the transverse transmission mechanism 14 is mainly carried out through sprockets and a chain 145. An active sprocket 147 and an auxiliary sprocket are respectively arranged at both ends of the support trough frame 141. The active sprocket 147 is connected to the output shaft of the transverse motor 146. A chain 145 is wound around between the active sprocket 147, the auxiliary sprocket, and the tensioning sprocket 144.

[0098] The tensioning sprocket 144 is fixedly installed on the sliding assembly 143, and the grinding transmission mechanism 15 is fixedly connected to the sliding assembly 143. When the active sprocket 147 rotates under the drive of the transverse motor 146, the torque is transmitted to the tensioning sprocket 144 through the winding of the chain 145. Based on the fixed installation of the tensioning sprocket 144 on the sliding assembly 143, the chain 145 can then restrain the sliding assembly 143, the grinding transmission mechanism 15, and the lifting mechanism 4 to move laterally on the support trough frame 141.

[0099] A support protective cover 148 is connected to the side of the support trough frame 141, which can achieve an effective protective effect. A wire harness fixed sliding chain 149 is arranged at the top of the support protective cover 148 to ensure the effective movement of the equipment connection wire harness.

[0100] The grinding transmission mechanism 15 includes a transmission box body. An active transmission wheel 151 and a driven transmission wheel 156 are arranged inside the transmission box body. The active transmission wheel 151 is connected to the output shaft of the grinding main motor 150. A multi-wedge belt 152 is wound around between the active transmission wheel 151 and the driven transmission wheel 156.

[0101] The transmission housing includes an upper transmission housing 158 and a lower transmission housing 157 that are split and joined together. A tensioning assembly 153 is fixedly installed between the upper transmission housing 158 and the lower transmission housing 157. A side plate 159 is connected to the side of the transmission housing. The driven transmission wheel 156 is fixedly connected to the main shaft pulley shaft 1510.

[0102] The grinding main motor 150 drives the driving transmission wheel 151, and then drives the driven transmission wheel 156 to rotate through the multi-wedge belt 152, and further indirectly drives the main shaft pulley shaft 1510 to rotate.

[0103] During the working process, press the start button of the grinding main motor 150 on the control operation panel 36. The grinding main motor 150 starts to rotate, driving the driving transmission wheel 151 to rotate. The driving transmission wheel 151 transmits power to the driven transmission wheel 156 through the multi-wedge belt 152 and the tensioning assembly 153. The driven transmission wheel 156 and the main shaft pulley shaft 1510 fixedly connected to it start to rotate. The lifting shaft 1511 and the main shaft pulley shaft 1510 are connected by a sliding key, enabling the lifting shaft 1511 to move up and down relative to the main shaft pulley shaft 1510. At the same time, the form of key connection ensures that the lifting shaft 1511 can rotate synchronously with the main shaft pulley shaft 1510.

[0104] The lifting shaft 1511 is fixedly connected to the grinding wheel fixing disc 1512, and the grinding wheel 155 is fixedly connected to the grinding wheel fixing disc 1512, so that the grinding wheel 155 rotates.

[0105] The bottom of the lower transmission housing 157 is connected with a grinding wheel cover 154 arranged around the grinding wheel 155 to protect the rotating grinding wheel 155 through the grinding wheel cover 154.

[0106] At the same time, press the start button of the cross-movement motor 146 on the control operation panel 36. The cross-movement motor 146 starts to rotate, driving the driving sprocket 147 to rotate. The driving sprocket 147 drives the auxiliary sprocket and the tensioning sprocket 144 to rotate through the chain 145. The tensioning sprocket 144 is fixedly connected to the sliding component 143 of the grinding transmission mechanism 15, and the grinding transmission mechanism 15 is fixedly connected to the sliding component 143. Thus, the rotation of the tensioning sprocket 144 realizes the axial movement of the grinding transmission mechanism 15 along the sliding cross beam 142. The electric control system controls the cross-movement motor 146 to rotate forward and reverse repeatedly, enabling the grinding transmission mechanism 15 to reciprocate relative to the sliding cross beam 142, and finally completing the grinding operation on the weld seam.

[0107] See Figure 7, the lifting mechanism 4 in the present invention includes a manual control part and an electric control part. Specifically, the lifting mechanism 4 includes a feed handwheel 28, the feed handwheel 28 is connected to a lifting handwheel shaft 25, and a driving gear 26 is connected to the lifting handwheel shaft 25. By manually controlling the rotation of the feed handwheel 28, the rotation of the driving gear 26 is realized in combination with the lifting handwheel shaft 25.

[0108] The output shaft of the lifting motor 16 is connected to a feed screw 21 through a coupling 17. A driven gear 19 is clamped on the feed screw 21. A synchronous belt 29 is arranged between the driving gear 26 and the driven gear 19. The lifting motor 16 is installed on a lifting motor fixing bracket 18. The driving gear 26, the driven gear 19 and the synchronous belt 29 are arranged inside a gear and belt cover 27. The gear and belt cover 27 is fixedly connected to the lower part of the lifting motor fixing bracket 18.

[0109] Through this setting method, on the one hand, the installation of the lifting motor 16 can be realized, and at the same time, the linkage between the manual control part and the electric control part can be realized.

[0110] A feed flange 20 through which the feed screw 21 passes is arranged at the lower part of the gear and belt cover 27. A feed sliding sleeve 22 is connected to the lower part of the feed flange 20. Both the feed flange 20 and the feed sliding sleeve 22 are fixedly installed. A feed sliding sleeve 23 is installed inside the feed sliding sleeve 22. The feed sliding sleeve 23 is connected to the feed sliding sleeve 22 through a sliding key, and the feed sliding sleeve 23 can move up and down relative to the fixed feed sliding sleeve 22.

[0111] The feed screw 21 is threadedly connected with a feed nut 24. The feed nut 24 is connected to the feed sliding sleeve 23 through a screw. Further, the feed sliding sleeve 23 is connected to a lifting shaft 1511 through a feed bearing and a bearing retaining ring, and the lifting shaft 1511 can rotate relative to the feed sliding sleeve 23, and at the same time, the lifting shaft 1511 can be driven to adjust the position in height during the up and down movement of the feed sliding sleeve 23.

[0112] The top end of the lifting shaft 1511 includes a connecting straight pipe section at the top end. The inner ring of the feed bearing is clamped and fixed on the outer side of the connecting straight pipe section. The outer ring of the feed bearing is clamped and fixed by the feed sliding sleeve 23. The feed screw 21 is rotatably inserted into the inside of the connecting straight pipe section.

[0113] The electric control lifting motor 16 rotates. The lifting motor 16 transmits power downward through the coupling 17 to drive the feed screw 21 to rotate. Or rotate the feed handwheel 28, and transmit the power from the driving gear 26 to the driven gear 19 through the synchronous belt 29 to drive the feed screw 21 to rotate. The feed sliding sleeve 23 and the feed sliding sleeve tube 22 are connected by a sliding key. The feed sliding sleeve 23 and the feed nut 24 are connected by screws. The lifting shaft 1511 and the feed sliding sleeve 23 are connected by a feed bearing and a bearing retaining ring. The feed screw 21 and the feed nut 24 are connected by a thread. When the feed screw 21 rotates, the rotation is converted into a linear motion in the vertical direction of the lifting shaft 1511 through the threaded connection, thus completing the lifting adjustment of the grinding wheel 155.

[0114] See Figure 8 , the angle deflection mechanism 7 is arranged outside the grinding transverse movement transmission mechanism 3 to realize the deflection and angle locking of the grinding mechanism, and the grinding range is between ±90°.

[0115] The angle deflection mechanism 7 includes a deflection motor fixing plate 31 connected to the frame welding 9 for fixedly installing the deflection motor 30. A sector-shaped flipping driving gear 32 is connected to the output shaft of the deflection motor 30. A flipping driven gear 33 is connected to the cams 45 at both side ends of the support groove frame 141. The sector-shaped flipping driving gear 32 is meshed and connected with the flipping driven gear 33;

[0116] A fixing seat 109 is arranged at the lower part of the deflection motor fixing plate 31. The cam 45 is fixedly connected to the outside of the profiling wheel assembly 11, including a camshaft 46 at the side end of the cam 45. The camshaft 46 is pivotally connected to the fixing seat 109 through a bearing. The fixing seat 109 and the frame welding 9 are connected as a whole, and thus the cam 45 can follow the support groove frame 141 of the transverse movement transmission mechanism 14 to deflect relative to the frame welding 9.

[0117] Among them, the sector-shaped flipping driving gear 32 is fixedly connected to the deflection motor 30. The deflection motor 30 is fixedly connected to the deflection motor fixing plate 31, and they are jointly installed on the frame welding 9. The flipping driven gear 33 is fixedly connected to the profiling wheel assembly 11 and the connected cam 45.

[0118] During the working process, start the control button of the deflection motor 30 on the operation panel 36. The deflection motor 30 drives the sector-shaped flipping driving gear 32 installed on the motor shaft to rotate, and then drives the grinding transverse movement transmission mechanism 3 and the lifting mechanism 4 fixedly connected to the flipping driven gear 33 to rotate along the cross-section of the rail 0 through the gear pair transmission structure, thereby realizing the adjustment of the grinding angle.

[0119] Combined with Figure 9, the cross-rail support mechanism 1 includes a cross-rail rod 37, a stabilizing cross-beam rod 39, and cross-rail support wheels 38. The root of the cross-rail rod 37 is connected to the cross-rail rod connection assembly 12. The stabilizing cross-beam rod 39 is connected between the cross-rail rods 37. The cross-rail support wheels 38 are connected to the ends of the cross-rail rods 37 through brackets.

[0120] The cross-rail support mechanism 1 is mainly used to support and stabilize the equipment body across the rail, prevent the equipment from derailing during large-angle grinding of the equipment, causing irreversible losses, and at the same time facilitate the operation of the operator during rail transportation work.

[0121] Combined Figure 10 , the rail clamping and fixing mechanism 8 includes a rail clamping weldment 40. The rail clamping weldment 40 includes two rail clamping steel plates 44. A connecting shaft 43 and welding blocks are arranged between the rail clamping steel plates 44. The two rail clamping steel plates 44 are assembled into an integral rail clamping weldment 40 through the connecting shaft 43 and the welding blocks.

[0122] Clamping openings for clamping the rail 0 are provided on both of the rail clamping steel plates 44. The clamping openings can be matched with the cross-section of the rail 0 to achieve preliminary clamping.

[0123] An anti-disengagement hook 41 is connected to the clamping opening part. A locking screw component 42 is connected to the side of the rail clamping weldment 40. The locking screw component 42 passes through the welding block and can abut against and lock the side wall of the rail 0.

[0124] Through the rail clamping weldment 40, the whole machine equipment can be fixed on the grinding section of the rail 0, preventing the whole equipment from moving when the grinding mechanism grinds along the direction of the rail 0, resulting in the failure of the automatic grinding function.

[0125] See Figure 11 , the control mechanism 5 is mainly used to control the working states of each motor, monitor the operation state of the equipment, perform profile analysis and formulate and execute grinding plans. It is mainly composed of an electric control box 34, a display screen 35, and an operation panel 36.

[0126] The electric control box 34 includes modules such as a PLC, a motor control system, and profile data analysis, which are used to analyze and transmit data and control instructions, so as to enable each motor to perform work as required.

[0127] The display screen 35 can display the grinding angle, grinding amount, selectable grinding precision, motor switch touch buttons, and analysis data results. It is mainly used to display and detect the grinding state.

[0128] The operation panel 36 includes an emergency stop button, an alarm warning light, a one-key start button, etc., which are used to supply power to the entire electric control system, remind the staff, etc. It mainly plays the role of overall control and warning personnel.

[0129] The rail weld precision grinder in the present invention can not only achieve automatic grinding of rail welds, but also has high grinding precision, good grinding quality, no pollution and is environmentally friendly.

[0130] By adopting full-electric control automatic control, it reduces the dependence on manual experience for grinding schemes, reduces the labor intensity of operators, improves the grinding efficiency, and at the same time creates necessary basic conditions for the development of grinding equipment towards the direction of intelligence, automation and digitization.

[0131] Generally speaking, compared with the existing manual grinding devices, it has the following advantages:

[0132] 1) Provide a special automatic grinding equipment for rail welds.

[0133] 2) The equipment is equipped with a grinding transverse movement transmission mechanism, realizing automatic grinding of the grinding device without manual pushing.

[0134] 3) The full-electric control automatic control type equipment can not only solve the convenience during rough grinding, but also meet the high-quality requirements of fine grinding.

[0135] 4) Configure a rail clamping and fixing mechanism to prevent the equipment from moving during automatic grinding, thus playing a role in stabilizing the grinding state.

[0136] 5) The control mechanism is embedded with a profile analysis module, which can automatically analyze and generate grinding schemes, solve the problem of relying entirely on manual experience for judgment and large labor intensity during grinding, and effectively realize the intelligence, automation and digitization of the rail weld precision grinder.

[0137] 6) Using power batteries and DC brushless motors as the power source, it not only has small vibration and low noise, but also has no pollution and is environmentally friendly.

[0138] It should be noted that, without conflict, the features in the embodiments of this application can be combined with each other.

[0139] The above are only the preferred embodiments of this application and are not used to limit this application. For those skilled in the art, this application can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this application shall be included in the protection scope of this application.

Claims

1. A rail weld fine grinding machine, characterized in that: include: Power source, control mechanism, angle deflection mechanism, grinding and traverse transmission mechanism and lifting mechanism; The angle deflection mechanism includes a deflection motor, the grinding and traversing transmission mechanism includes a grinding main motor and a traversing motor, and the lifting mechanism includes a lifting motor; The power source, the deflection motor, the grinding main motor, the traverse motor and the lifting motor are electrically connected to the control mechanism respectively, and the control mechanism includes an electric control box with built-in profile analysis software and an operation panel, and the operation panel is electrically connected to the electric control box; and a running support mechanism, the running support mechanism is used to install the grinding transverse transmission mechanism and the angle deflection mechanism, and the lifting mechanism is connected to the grinding transverse transmission mechanism; The traveling support mechanism is connected with a cross-rail support mechanism and a rail clamping and fixing mechanism. The cross-rail support mechanism is used to provide cross-rail support for the rail weld fine grinding machine, and the rail clamping and fixing mechanism is used to fix the rail weld fine grinding machine.

2. The rail weld fine grinding machine according to claim 1, characterized in that: The travel support mechanism includes a frame weld and a wheel support assembly, a rail rod connection assembly and a lifting handle respectively connected to both sides of the frame weld, and a contour wheel assembly is arranged on the bidirectional inner side of the frame weld; The wheel support assembly is arranged on the welded outer side of the frame, and includes a protective cover and a frame connecting plate. A support seat is arranged on the frame connecting plate, a connecting slider assembly is arranged on the support seat, and a spring shaft and a guide shaft arranged in parallel are installed on the support seat, two identical return springs are connected to the spring shaft, and the connecting slider assembly is connected to the center of the two return springs and is slidably installed on the guide shaft.

3. The rail weld fine grinding machine according to claim 2, characterized in that: The bottom of the connecting slider assembly is connected to two rollers, which are arranged at intervals and vertically for clamping on both sides of the rail; The profiling wheel assembly comprises a horizontally arranged profiling roller, and the profiling roller is arranged tangent to the rail surface of the rail.

4. The rail weld fine grinding machine according to claim 2, characterized in that: The grinding and transverse transmission mechanism comprises a transverse transmission mechanism and a grinding transmission mechanism; The transverse transmission mechanism includes a support slot frame, and the contour wheel assembly is fixedly connected to the lower sides of both ends of the support slot frame; The support trough frame is provided with a sliding beam, the sliding beam is provided with a sliding assembly, and the sliding assembly is connected with a tensioning sprocket; The support slot frame is rotatably connected to the frame weld via cams located at both ends, and a driving sprocket and an auxiliary sprocket are respectively arranged at both ends of the support slot frame, the driving sprocket is connected to the output shaft of the transverse motor, and a chain is coiled between the driving sprocket, the auxiliary sprocket and the tensioning sprocket; The tensioning sprocket is fixedly mounted on the sliding assembly, and the grinding transmission mechanism is fixedly connected to the sliding assembly; The side of the support slot frame is connected with a support protective cover, and the top of the support protective cover is provided with a wire harness fixing sliding chain.

5. The rail weld fine grinding machine according to claim 4, characterized in that: The grinding transmission mechanism comprises a transmission box, wherein a driving transmission wheel and a driven transmission wheel are arranged inside the transmission box, wherein the driving transmission wheel is connected to the output shaft of the grinding main motor, and a multi-V belt is wound between the driving transmission wheel and the driven transmission wheel; The transmission box body comprises an upper transmission box body and a lower transmission box body which are separated and assembled, a tensioning assembly is fixedly installed between the upper transmission box body and the lower transmission box body, and a side plate is connected to the side of the transmission box body; The driven transmission wheel is fixedly connected with the main shaft pulley shaft.

6. The rail weld fine grinding machine according to claim 5, characterized in that: The main shaft pulley shaft is connected to a lifting shaft through a sliding key, the lifting shaft is fixedly connected to a grinding wheel fixing plate, the grinding wheel fixing plate is connected to a grinding wheel, and the bottom of the lower transmission box is connected to a grinding wheel cover arranged on the periphery of the grinding wheel.

7. The rail weld fine grinding machine according to claim 6, characterized in that: The lifting mechanism comprises a feeding hand wheel, the feeding hand wheel is connected to a lifting hand wheel shaft, and the lifting hand wheel shaft is connected to a driving gear; The output shaft of the lifting motor is connected to a feed screw through a coupling, a clamp on the feed screw is connected to a driven gear, a synchronous belt is arranged between the driving gear and the driven gear, the lifting motor is installed on a lifting motor fixing frame, the driving gear, the driven gear and the synchronous belt are arranged inside a gear belt cover, and the gear belt cover is fixedly connected to the lower part of the lifting motor fixing frame; The lower part of the gear belt cover is provided with a feed flange for the feed screw to pass through, the lower part of the feed flange is connected with a feed sliding sleeve, a feed sliding sleeve is installed inside the feed sliding sleeve, the feed sliding sleeve is connected to the feed sliding sleeve through a sliding key, the feed screw is threadedly connected with a feed nut, and the feed nut is connected to the feed sliding sleeve through a screw; The feed sleeve is connected to the lifting shaft through a feed bearing and a bearing retaining ring. The top of the lifting shaft includes a connecting straight pipe section located at the top. The inner ring clamp of the feed bearing is fixed to the outside of the connecting straight pipe section. The feed sleeve is fixed to the outer ring clamp of the feed bearing. The feed screw is rotatably inserted into the inside of the connecting straight pipe section.

8. The rail weld fine grinding machine according to claim 5, characterized in that: The angle deflection mechanism is arranged on the outside of the grinding transverse transmission mechanism, and includes a deflection motor fixing plate connected to the frame welded to fix the deflection motor, the output shaft of the deflection motor is connected to a fan-shaped flip driving gear, and the cams located at both side ends of the support slot frame are connected to flip driven gears, and the fan-shaped flip driving gear is meshed and connected with the flip driven gear; A fixing seat is arranged at the lower part of the deflection motor fixing plate. The cam is connected to the outer side of the contour wheel assembly and comprises a camshaft located at the side end of the cam. The camshaft is rotatably connected to the fixing seat through a bearing.

9. The rail weld fine grinding machine according to claim 5, characterized in that: The cross-rail support mechanism includes a cross-rail rod, a stabilizing crossbeam rod and a cross-rail support wheel. The root of the cross-rail rod is connected to the cross-rail rod connecting assembly, the stabilizing crossbeam rod is connected between the cross-rail rods, and the cross-rail support wheel is connected to the end of the cross-rail rod through a bracket.

10. The rail weld fine grinding machine according to claim 5, characterized in that: The rail clamp fixing mechanism includes a rail clamp welding, and the rail clamp welding includes two rail clamp steel plates, and a connecting shaft and a welding block are arranged between the rail clamp steel plates; The rail clamping steel plates are all provided with clamping openings for clamping rails, the clamping openings are connected with anti-detachment hooks, the welded sides of the rail clamps are connected with locking screw assemblies, the locking screw assemblies pass through the welding blocks and can abut and lock against the side walls of the rails.

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