Internal combustion multi-angle sander
By designing an internal combustion multi-angle grinder, the problem of limited grinding angles has been solved, enabling efficient all-round grinding of rails and improving grinding efficiency and appearance quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 华夏高铁技术有限公司
- Filing Date
- 2025-04-29
- Publication Date
- 2026-06-02
AI Technical Summary
Existing grinding machines have limited grinding angles, making it impossible to achieve efficient grinding of rails from all angles and failing to meet the appearance quality requirements of seamless track welded joints.
Design an internal combustion multi-angle grinder. By arranging the gasoline engine and lubricating oil tank on the same side, combined with belt drive and deflection frame, a 90-degree to 10-degree swing grinding range is achieved, which drives the main shaft to lift and deflect, thereby expanding the grinding angle.
It enables efficient all-round grinding of rails, improves grinding efficiency, and meets the appearance quality requirements of seamless track welded joints.
Smart Images

Figure CN224313976U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of rail grinding equipment, and more specifically, to an internal combustion multi-angle grinding machine. Background Technology
[0002] With the continuous increase in the operating speed of my country's railways and the large-scale laying of seamless tracks, the requirements for railway maintenance are becoming more stringent, and the requirements for the quality of rail grinding are becoming increasingly higher. This is because the appearance quality of the welded joints of seamless tracks directly affects the service life of the seamless tracks and the operating speed of trains.
[0003] Therefore, improving the appearance quality of welded joints is of paramount importance to ensuring train operation, and high-precision grinding equipment is required to guarantee appearance quality.
[0004] Existing grinding machines have limitations in grinding angle because the grinding wheel needs to swing with the shape of the steel rail, and the gasoline engine also needs to swing with the shape of the steel rail. This is due to the limitations of the engine oil tank and lubricating oil tank being installed on the frame. Utility Model Content
[0005] The purpose of this application is to provide an internal combustion multi-angle grinding machine that can achieve a swing grinding range of 90 degrees inward and 10 degrees outward relative to the rail, and complete the grinding of all the required grinding surfaces of the rail in one operation.
[0006] To achieve the above objectives, this utility model provides an internal combustion multi-angle grinder, including a frame and a body connected to the frame. The body includes a drive unit, a transmission unit, a feed unit, and a grinding unit. A support guide unit is connected to the bottom of the frame.
[0007] The drive unit includes a gasoline engine and a lubricating oil tank. The gasoline engine and the lubricating oil tank are arranged on the same side of the frame, and are located on the same side of the frame as the transmission unit, the feed unit and the grinding unit.
[0008] The transmission unit includes an engine bushing, a main bushing, and a belt drive assembly. The engine bushing is connected to the output shaft of the gasoline engine. The main bushing is fixedly connected to the lower part of the feed unit, and a main shaft capable of driving the grinding unit to rotate is connected in the main bushing. The feed unit includes a feed assembly capable of driving the main shaft to move up and down.
[0009] The frame is connected to a deflection frame, the body is connected to the deflection frame via a deflection part, and the support guide part is connected to the bottom of the frame.
[0010] In an optional embodiment, a fuel tank bracket is provided on the side of the gasoline engine, the lubricating oil tank is mounted on top of the fuel tank bracket, and a vibration damping rubber column is provided between the lubricating oil tank and the fuel tank bracket.
[0011] In an optional embodiment, the frame includes a handle holder disposed on the side of the body, the handle holder comprising an open tube frame structure and being formed by bending metal tubes.
[0012] In an optional embodiment, the deflection frame includes an arc-shaped frame structure fixedly connected to the handle frame, and an arc-shaped groove extending along the arc-shaped frame is provided on the deflection frame.
[0013] The deflection part includes a deflection shaft passing through the arc-shaped groove, and a deflection handle that can be screwed and locked onto the deflection shaft, the deflection shaft being connected to the machine body.
[0014] In an optional embodiment, the frame includes a mounting base for mounting the gasoline engine and a main mounting base for mounting the main shaft sleeve, the engine shaft sleeve being connected inside the mounting base.
[0015] In an optional embodiment, the belt drive assembly includes an engine drive pulley, a main shaft driven pulley, and a timing belt wound between the two. The engine drive pulley is connected to the bottom of the engine bushing, and the main shaft driven pulley is connected to the bottom of the main shaft bushing.
[0016] In an optional embodiment, the feed assembly includes a feed handwheel, a feed shaft tube, and a feed nut;
[0017] A handwheel seat is provided on the frame, the feed shaft is threaded through the handwheel seat, the handwheel seat is connected to the upper part of the main body, and the feed nut is fixedly installed at the junction of the handwheel seat and the main body.
[0018] In an optional embodiment, a feed sleeve is connected to the bottom of the feed shaft tube;
[0019] The top of the spindle is mounted on the feed sleeve via a bearing, and the feed sleeve is threadedly connected to the feed nut.
[0020] In an optional embodiment, the spindle sleeve is mounted inside the main unit via bearings, and the spindle and the spindle sleeve are connected by a sliding key.
[0021] In an optional embodiment, the grinding section includes a grinding disc and a grinding wheel, the grinding disc being connected to the bottom of the spindle and the grinding wheel being mounted on the grinding disc.
[0022] By arranging the gasoline engine and lubricating oil tank on the same side of the frame, and placing them on the same side of the frame as the transmission, feed, and grinding sections, the installation limitations of the engine oil tank and lubricating oil tank on the frame can be eliminated, thereby solving the problem of limited grinding angle.
[0023] The torque output from the gasoline engine can be transmitted to the main shaft via belt drive, which in turn drives the grinding part to rotate.
[0024] The feed unit includes a feed assembly that can drive the spindle to move up and down, allowing for control and adjustment of the height of the spindle and the grinding section, thus enabling feed to different grinding areas.
[0025] The deflector frame connected to the frame, and the machine body connected to the deflector frame via the deflector part, enable the grinding machine to swing and grind within a range of 90 degrees inward and 10 degrees outward relative to the rail. Combined with the support guide connected to the bottom of the frame, it can grind within the maximum angle range in one operation, completing the grinding of all the required grinding surfaces of the rail and improving grinding efficiency.
[0026] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description
[0027] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0028] Figure 1 This is a schematic diagram of the overall structure of the internal combustion multi-angle grinder in this application;
[0029] Figure 2 This is a schematic diagram of the transmission unit, feed unit, and grinding unit in this application;
[0030] Figure 3 This is a schematic diagram of the grinding state of the grinding machine in this application at an outward angle of 10°.
[0031] Figure 4 This is a schematic diagram of the grinding state of the grinding machine in this application at an inward 90° angle.
[0032] icon:
[0033] 1-Frame; 11-Fuel tank bracket; 12-Vibration damping rubber column; 13-Handle bracket; 14-Mounting base; 15-Main unit base; 16-Handwheel base;
[0034] 2-Drive unit; 21-Gasoline engine; 22-Lubricating oil tank;
[0035] 3-Transmission unit; 31-Engine bushing; 32-Main bushing; 33-Belt drive assembly;
[0036] 33a - Driven pulley; 33b - Driven pulley of main shaft; 33c - Synchronous belt;
[0037] 4-Feed section; 41-Feed handwheel; 42-Feed shaft tube; 43-Feed nut; 44-Feed bushing;
[0038] 5-Grinding section; 51-Grinding wheel disc; 52-Grinding wheel;
[0039] 6-Support guide section;
[0040] 7-Spindle; 71-Slide key;
[0041] 8-Deflection frame; 81-Arc groove; 82-Deflection shaft; 83-Deflection handle. Detailed Implementation
[0042] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0043] In the description of this application, it should be noted that the terms "inner" and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of describing this application and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0044] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "setup" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0045] See Figure 1 and combined Figures 2-4The internal combustion multi-angle grinder of this utility model includes a frame 1 and a body connected to the frame 1. The frame 1 is mainly used to support the grinder body. The body includes a drive unit 2, a transmission unit 3, a feed unit 4 and a grinder 5. A support guide unit 6 is connected to the bottom of the frame 1.
[0046] The drive unit 2 is mainly used to drive the grinding unit 5 to perform grinding, while the transmission unit 3 transmits the output torque of the drive unit 2 to the grinding unit 5. The feed unit 4 is specifically used to control the height of the grinding unit 5, thereby realizing lifting and feeding. By setting the support guide unit 6 at the bottom of the frame 1, the machine body can be transferred on the rail.
[0047] The drive unit 2 in this invention is specifically driven by a gasoline engine 21. The drive unit 2 includes a gasoline engine 21 and a lubricating oil tank 22. During operation, the lubricating oil in the lubricating oil tank 22 is output to lubricate the gasoline engine 21.
[0048] The gasoline engine 21 and the lubricating oil tank 22 are arranged on the same side of the frame 1, and are also located on the same side of the frame 1 as the transmission unit 3, the feed unit 4 and the grinding unit 5. This arrangement allows the main functional components of the machine body to be located on the same side, effectively overcoming the installation limitations of the engine oil tank and the lubricating oil tank 22 on the frame 1, reducing interference between the drive unit 2 and the frame 1, and thus expanding the grinding angle range.
[0049] The transmission unit 3 specifically includes an engine bushing 31, a main bushing 32, and a belt drive assembly 33. The engine bushing 31 is connected to the output shaft of the gasoline engine 21. The main bushing 32 is fixedly connected to the lower part of the feed unit 4, and a main shaft 7 capable of driving the grinding unit 5 to rotate is connected in the main bushing 32. The feed unit 4 includes a feed assembly capable of driving the main shaft 7 to move up and down.
[0050] In this invention, the main spindle 7 can rotate synchronously with the main spindle sleeve 32, and can be raised and lowered under the control of the feed assembly of the feed section 4, thereby adjusting the height of the grinding section 5.
[0051] Based on the improvement idea of further increasing the grinding range, the frame 1 is connected to the deflection frame 8, and the machine body is connected to the deflection frame 8 through the deflection part, which enables the overall functional machine body to be installed at the angle on the deflection frame 8.
[0052] By connecting the support guide 6 to the bottom of the frame 1, the frame 1 can drive the machine body to move on the rails and perform effective grinding during the movement.
[0053] The support guide 6 is specifically a contour wheel, which can move and travel on the rail and can cooperate with the rail surface.
[0054] In one specific embodiment, a fuel tank bracket 11 is provided on the side of the gasoline engine 21. The fuel tank bracket 11 is fixedly connected to the frame 1 and is used to support the lubricating oil tank 22. The lubricating oil tank 22 is installed on the top of the fuel tank bracket 11. A toolbox can be set in the lower space of the fuel tank bracket 11 for storing necessary operating tools.
[0055] A damping rubber column 12 is provided between the lubricating oil tank 22 and the oil tank bracket 11, which can effectively buffer and reduce vibration, and prevent the gasoline engine 21 from affecting the stability of the lubricating oil tank 22 during operation.
[0056] In this embodiment, the grinding machine is moved and ground mainly by pushing during operation. Specifically, the frame 1 includes a handle frame 13 set on the side of the machine body. The handle frame 13 includes an open tube frame structure and is formed by bending metal tubes, which allows the machine body to be adjusted at a certain tilt angle relative to the handle frame 13 by the deflection frame 8, and then fixed after adjustment.
[0057] The open-frame structure, similar to a gantry, provides more installation space for the machine and minimizes the risk of unnecessary interference.
[0058] Considering the need for the body to adjust its tilt angle relative to the handle frame 13 via the deflection frame 8, the deflection frame 8 includes an arc-shaped frame structure fixedly connected to the handle frame 13, and an arc-shaped groove 81 extending along the arc-shaped frame is provided on the deflection frame 8. Combined with the deflection part including a deflection shaft 82 that passes through the arc-shaped groove 81 and is integrally connected to the body, and a deflection handle 83 that can be screwed and locked to the deflection shaft 82, the locking and unlocking status can be controlled by the deflection handle 83. In the unlocked state, the entire body can slide on the deflection frame 8, and the tilt angle can be adjusted at the same time. After the adjustment is in place, the body can be locked by the deflection handle 83.
[0059] In another specific embodiment, the frame 1 includes a mounting base 14 for mounting a gasoline engine 21 and a main mounting base 15 for mounting a main shaft sleeve 32. The mounting base 14 and the main mounting base 15 are disposed opposite each other on both sides for mounting the gasoline engine 21 and the main shaft sleeve 32, respectively.
[0060] The engine bushing 31 is connected inside the mounting base 14, which connects it to the output shaft of the gasoline engine 21, enabling stable output of grinding torque, and torque transmission can be achieved through the belt drive assembly 33.
[0061] Specifically, the belt drive assembly 33 includes an engine drive pulley 33a, a main shaft driven pulley 33b, and a synchronous belt 33c coiled between the two. The engine drive pulley 33a is connected to the bottom of the engine bushing 31, and the main shaft driven pulley 33b is connected to the bottom of the main shaft bushing 32.
[0062] In the specific transmission process, the gasoline engine 21 drives the engine bushing 31 and the engine drive pulley 33a to rotate synchronously, while the synchronous belt 33c can drive the main shaft driven pulley 33b and the main shaft bushing 32 to rotate synchronously during the transmission process, thereby causing the main shaft bushing 32 and the synchronous belt 33c to drive the main shaft 7 and the grinding part 5 connected to the main shaft 7 to rotate.
[0063] In this embodiment, the feed unit 4 is separately set from the transmission unit 3, and they control the relationship of the main shaft 7 respectively. Specifically, the feed assembly includes a feed handwheel 41, a feed shaft tube 42, and a feed nut 43. The feed shaft tube 42 is fixedly connected to the feed handwheel 41, and a handwheel seat 16 is provided on the frame 1, with the feed shaft tube 42 threaded through the handwheel seat 16.
[0064] The handwheel seat 16 is connected to the upper part of the main body seat 15. The feed nut 43 is fixedly installed at the joint between the handwheel seat 16 and the main body seat 15. Furthermore, the feed shaft tube 42 and the feed nut 43 are specifically connected by a threaded engagement, which enables the height adjustment of the feed shaft tube 42 to be achieved by the effect of the lead screw when the feed shaft tube 42 rotates.
[0065] A feed sleeve 44 is connected to the bottom of the feed tube 42, and the feed tube 42 can drive the feed sleeve 44 to move up and down when it is raised and lowered.
[0066] The top of the spindle 7 is mounted on the feed sleeve 44 via a bearing. On the one hand, the spindle 7 can move up and down synchronously with the feed sleeve 44. On the other hand, the spindle 7 can move up and down while rotating relative to the feed sleeve 44, thus achieving feed in the height direction. In turn, it can synchronously drive the grinding part 5 located at the bottom of the spindle 7 to adjust the height feed.
[0067] The spindle sleeve 32 is mounted inside the main body base 15 via bearings, allowing the spindle sleeve 32 to rotate relative to the main body base 15. Meanwhile, the spindle 7 and the spindle sleeve 32 are connected by a sliding key 71. This arrangement ensures that the spindle 7 rotates synchronously with the spindle sleeve 32, and also allows for height adjustment of the spindle 7 relative to the spindle sleeve 32 during rotation.
[0068] The grinding section 5 includes a grinding wheel disc 51 and a grinding wheel 52. The grinding wheel disc 51 is connected to the bottom of the spindle 7, and the grinding wheel 52 is mounted on the grinding wheel disc 51. This allows the grinding section 5 to follow the spindle 7 in a high-speed feed and to perform synchronous rotation grinding.
[0069] The internal combustion multi-angle grinder of this invention can perform oscillating grinding under the drive of a gasoline engine 21, ensuring oscillation within a large angle range and greatly improving grinding efficiency.
[0070] It should be noted that, where there is no conflict, the features in the embodiments of this application can be combined with each other.
[0071] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. An internal combustion multi-angle grinder, characterized in that, It includes a frame and a body connected to the frame. The body includes a drive unit, a transmission unit, a feed unit, and a grinding unit. A support guide unit is connected to the bottom of the frame. The drive unit includes a gasoline engine and a lubricating oil tank. The gasoline engine and the lubricating oil tank are arranged on the same side of the frame, and are located on the same side of the frame as the transmission unit, the feed unit and the grinding unit. The transmission unit includes an engine bushing, a main bushing, and a belt drive assembly. The engine bushing is connected to the output shaft of the gasoline engine. The main bushing is fixedly connected to the lower part of the feed unit, and a main shaft capable of driving the grinding unit to rotate is connected in the main bushing. The feed unit includes a feed assembly capable of driving the main shaft to move up and down. The frame is connected to a deflection frame, the body is connected to the deflection frame via a deflection part, and the support guide part is connected to the bottom of the frame.
2. The internal combustion multi-angle grinder according to claim 1, characterized in that, The gasoline engine is provided with a fuel tank bracket on its side, the lubricating oil tank is installed on the top of the fuel tank bracket, and a vibration damping rubber column is provided between the lubricating oil tank and the fuel tank bracket.
3. The internal combustion multi-angle grinder according to claim 1, characterized in that, The frame includes a handle frame disposed on the side of the machine body, the handle frame having an open tube frame structure and being formed by bending metal tubes.
4. The internal combustion multi-angle grinder according to claim 3, characterized in that, The deflection frame includes an arc-shaped frame structure fixedly connected to the handle frame, and an arc-shaped groove extending along the arc-shaped frame is provided on the deflection frame. The deflection part includes a deflection shaft passing through the arc-shaped groove, and a deflection handle that can be screwed and locked onto the deflection shaft, the deflection shaft being connected to the machine body.
5. The internal combustion multi-angle grinder according to claim 1, characterized in that, The frame includes a mounting base for mounting the gasoline engine and a main mounting base for mounting the main shaft sleeve, the engine shaft sleeve being connected inside the mounting base.
6. The internal combustion multi-angle grinder according to claim 5, characterized in that, The belt drive assembly includes an engine drive pulley, a main shaft driven pulley, and a synchronous belt wound between the two. The engine drive pulley is connected to the bottom of the engine bushing, and the main shaft driven pulley is connected to the bottom of the main shaft bushing.
7. The internal combustion multi-angle grinder according to claim 6, characterized in that, The feed assembly includes a feed handwheel, a feed shaft tube, and a feed nut; A handwheel seat is provided on the frame, the feed shaft is threaded through the handwheel seat, the handwheel seat is connected to the upper part of the main body, and the feed nut is fixedly installed at the junction of the handwheel seat and the main body.
8. The internal combustion multi-angle grinder according to claim 7, characterized in that, The bottom of the feed shaft tube is connected to a feed shaft sleeve; The top of the spindle is mounted on the feed sleeve via a bearing, and the feed sleeve is threadedly connected to the feed nut.
9. The internal combustion multi-angle grinder according to claim 5, characterized in that, The spindle sleeve is mounted inside the main unit via bearings, and the spindle and the spindle sleeve are connected by a sliding key.
10. The internal combustion multi-angle grinder according to claim 1, characterized in that, The grinding section includes a grinding disc and a grinding wheel. The grinding disc is connected to the bottom of the spindle, and the grinding wheel is mounted on the grinding disc.