An auxiliary device for rail moving of a rail rail bar grinder and the grinder
By designing an auxiliary device for the rail weld bead grinding machine, the stability and portability issues of the chassis during movement were solved, achieving stable grinding results and convenient transportation at railway bends.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA RAILWAY THREE BUREAU GRP LINE BRIDGE ENG CO L
- Filing Date
- 2025-07-07
- Publication Date
- 2026-07-14
AI Technical Summary
The existing rail grinding machine chassis lacks stability when moving and is too large to be easily transported.
An auxiliary device was designed, including a crossbar, a second traveling wheel, and a second clamping assembly. It can travel and be fixed on the rail. One side of the auxiliary device is connected to the grinding machine frame, and the other side is installed on the rail that is not being ground. The second clamping assembly clamps the rail head to fix its position. Combined with a storage box, it is easy to store and disassemble.
It improves the stability of the frame, especially at railway curves, ensuring the stability of the grinding effect. It has a simple structure, is lightweight, easy to transport, and easy to disassemble and maintain.
Smart Images

Figure CN224494774U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of rail weld bead grinding technology, and in particular to an auxiliary device and a grinding machine for moving a rail weld bead grinding machine along the rail. Background Technology
[0002] Most existing rail grinding machines have frames that are clamped onto the rails being ground. When movement is required, manual handling is necessary, and this type of frame lacks stability. Alternatively, the frame may be supported on two rails on either side and moved via wheels. This type of frame is large and inconvenient to move. These problems urgently need to be solved. Utility Model Content
[0003] This utility model discloses an auxiliary device and a grinding machine for moving a rail weld bead grinding machine along the rail, aiming to solve the technical problems existing in the prior art.
[0004] The present invention adopts the following technical solution:
[0005] In a first aspect, this utility model provides an auxiliary device for a rail weld bead grinding machine to move along a rail. The grinding machine is capable of moving on the rail to be ground. One side of the auxiliary device is connected to the frame of the grinding machine, and the other side can be mounted on the rail not being ground. The auxiliary device can move along the rail and be fixed on the rail. The auxiliary device includes a crossbar, a second traveling wheel, and a second clamping assembly. One end of the crossbar is detachably connected to the frame, and the other end is located above the rail not being ground, and is detachably connected to the second traveling wheel and the second clamping assembly. The second traveling wheel is used to travel on the rail. The second clamping assembly is used to clamp the rail head of the rail to fix its position.
[0006] In the auxiliary device for moving a rail weld bead grinding machine along the rail according to the present invention, the auxiliary device further includes a storage box; the storage box is installed on the frame and is used to store the crossbar, the second traveling wheel and the second clamping assembly.
[0007] In the auxiliary device for moving a rail weld bead grinding machine along the rail according to this utility model, the storage box is a box with an open top, and two opposite sides are provided with insertion ports for the horizontal insertion of the crossbar. The storage box is provided with a first limiting member located on the bottom surface, a second limiting member and a third limiting member located inside the storage box and higher than the first limiting member; the first limiting member is used to cooperate with the limiting hole on the side of the crossbar for limiting; the second traveling wheel and the second clamping assembly are integral structures; the second limiting member, the third limiting member and the inner wall of the storage box together form a space to accommodate the second traveling wheel and the second clamping assembly.
[0008] In the auxiliary device for moving a rail weld bead grinding machine along the rail according to this utility model, the second limiting member consists of two parallel limiting rods, one of which is used to support the side of the second clamping assembly near the second traveling wheel, and the other is used to limit the movement range of the bottom side of the second clamping assembly; the third limiting member can be inserted into the gap between the second traveling wheel, the second clamping assembly, and the connecting plate and the second traveling wheel; the connecting plate is in contact with the inner wall of the storage box.
[0009] In the auxiliary device for moving a rail weld bead grinding machine along the rail according to this utility model, the second clamping assembly includes a second body, a second clamping plate, and a second tightening bolt; the second body has a second receiving groove; the second receiving groove is used to receive the rail head of the rail; the second clamping plate is disposed inside the second receiving groove, and its top can be movably connected to the inner wall of the second receiving groove, either close to or away from the inner wall of the second receiving groove; one end of the second tightening bolt passes through the second body and abuts against the second clamping plate, so that the second clamping plate can abut against the rail head of the rail.
[0010] In the auxiliary device for moving a rail weld bead grinding machine along the rail according to this utility model, the second clamping assembly further includes a second retaining strip and a second guide rod; the second retaining strip surrounds the top of the second clamping plate and its end is fixed to the inner wall of the second receiving groove; one end of the second guide rod is fixed to the inner wall of the second receiving groove, and the other end is disposed on the second retaining strip; the second clamping plate has a second through hole; the second guide rod passes through the second through hole, and the second clamping plate can move closer to or away from the inner wall of the second receiving groove along the second guide rod, thereby clamping the rail head of the rail.
[0011] In the auxiliary device for moving a rail weld bead grinding machine along the rail according to this utility model, the size of the second through hole is larger than the cross-sectional size of the second guide rod.
[0012] The auxiliary device for moving a rail weld bead grinding machine along the rail according to this utility model includes at least two second guide rods; the two second guide rods are arranged in parallel and spaced apart.
[0013] In the auxiliary device for moving a rail weld bead grinding machine along the rail according to the present invention, the bottom of the second clamping plate is lower than the bottom of the rail head and bends away from the inner wall of the second receiving groove to form a shape limiting part between it and the inner wall of the second receiving groove on the other side, so as to prevent the rail head of the rail from detaching from the second clamping assembly.
[0014] In a second aspect, the present invention also provides a grinding machine, which includes any of the auxiliary devices described above, a frame, a first traveling wheel, and a first clamping assembly; the top of the frame is used to mount the grinding assembly, and the bottom is used to mount the first traveling wheel and the first clamping assembly; the first traveling wheel is used to travel on the rail head of the rail being ground; the first clamping assembly is used to clamp the side of the rail head of the rail being ground to fix the position of the frame; one side of the auxiliary device is connected to the frame of the grinding machine, and the other side can be mounted on the rail not being ground, and can move along the rail and be fixed on the rail.
[0015] The technical solution adopted in this utility model can achieve the following beneficial effects:
[0016] This utility model mainly provides an auxiliary device for moving a rail weld bead grinding machine along the rail. Based on the setting of the auxiliary device, the stability of the frame can be improved, especially for rails at railway curves where one side is higher than the other. The auxiliary device can ensure the stability of the frame and prevent it from tilting, thereby ensuring the stability of the grinding effect. Moreover, the structure is simple, lightweight, and easy to transport. The separate setting of the second traveling wheel and the second clamping component optimizes the force distribution, reduces stress concentration, facilitates disassembly and maintenance, and thus extends the service life. Attached Figure Description
[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below, forming part of this utility model. The illustrative embodiments of this utility model and their descriptions explain this utility model and do not constitute an improper limitation of this utility model. In the accompanying drawings:
[0018] Figure 1 This is a schematic diagram of the structure of the grinding machine of this utility model;
[0019] Figure 2 This is a three-dimensional structural diagram of the second clamping component of this utility model;
[0020] Figure 3 This is a schematic diagram of the main structure of the second clamping assembly of this utility model;
[0021] Figure 4 This is a schematic diagram of the structure of the second traveling wheel and the second clamping assembly of this utility model placed in the storage box;
[0022] Figure 5 This is a three-dimensional structural diagram of the storage box of this utility model;
[0023] Figure 6 This is a schematic diagram of the cross-sectional structure of the storage box of this utility model.
[0024] Explanation of reference numerals in the attached figures:
[0025] 1. Movable frame; 11. Chassis; 12. First traveling wheel; 13. First clamping assembly; 14. Auxiliary device; 141. Crossbar; 142. Second traveling wheel; 143. Second clamping assembly; 1431. Second main body; 14311. Second receiving through groove; 14312. Second receiving recess; 1432. Second clamping plate; 14321. Second through hole; 1433. Second tightening bolt; 1434. Second enclosure strip; 1435. Second guide rod; 144. Storage box; 1441. Insertion port; 145. First limiting member; 146. Second limiting member; 147. Third limiting member; 148. Connecting plate; 149. Indicating locking member; 1491. Handle; 1492. Screw. Detailed Implementation
[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. In the description of this utility model, it should be noted that the term "or" is generally used to include the meaning of "and / or," unless otherwise expressly stated otherwise.
[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" 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 mechanical connection or a magnetic 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 utility model based on the specific circumstances. Furthermore, in the description of this application, the terms "first," "second," etc., are used only for distinguishing descriptions and should not be construed as indicating or implying relative importance. In the description of this utility model, "a plurality of" means at least two, such as two, three, or more, unless otherwise explicitly specified.
[0028] Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0029] To address the problems existing in the prior art, this application provides an auxiliary device for moving a rail weld bead grinding machine along the rail.
[0030] like Figure 1As shown, an auxiliary device for a rail weld bead grinding machine to move along the rail is disclosed. The grinding machine can move on the rail to be ground. One side of the auxiliary device 14 is connected to the frame 11 of the grinding machine, and the other side can be installed on the rail not being ground. It can move along the rail and be fixed on the rail. The auxiliary device 14 includes a crossbar 141, a second traveling wheel 142, and a second clamping assembly 143. One end of the crossbar 141 is detachably connected to the frame 11, and the other end is located above the rail not being ground, and is detachably connected to the second traveling wheel 142 and the second clamping assembly 143. The second traveling wheel 142 is used to travel on the rail. The second clamping assembly 143 is used to clamp the rail head to fix the position.
[0031] This utility model discloses an auxiliary device for moving a rail weld bead grinding machine along the rail. Based on the setting of the auxiliary device 14, the stability of the frame 11 can be improved, especially for rails at railway curves where one side is higher than the other. The auxiliary device 14 can ensure the stability of the frame 11 and prevent it from tilting, thereby ensuring the stability of the grinding effect. It also has a simple structure, is lightweight, and is easy to transport. Based on the detachable connection method, it is easier to transport the grinding machine. Furthermore, the frame 11 can be installed and adjusted first, and then the auxiliary device 14 can be installed, which facilitates the adjustment of the installation state of the frame 11.
[0032] In some preferred embodiments, such as Figure 1 , Figures 4-6 As shown, the auxiliary device 14 also includes a storage box 144; the storage box 144 is used to store the crossbar 141, the second traveling wheel 142, and the second clamping assembly 143; based on the setting of the storage box 144, it is convenient to store the crossbar 141, the second traveling wheel 142, and the second clamping assembly 143; preferably, the crossbar 141 and the frame 11, as well as the crossbar 141 and the second traveling wheel 142 and the second clamping assembly 143, can be quickly disassembled and assembled through the indicator locking member 149. Based on the fact that this structure does not require disassembly and assembly tools and can be disassembled and assembled by hand and locked in one go, this feature makes the structure not only able to meet the basic clamping requirements, but also greatly improve the convenience and efficiency of work.
[0033] In some preferred embodiments, such as Figure 5As shown, the storage box 144 is a box with an open top, and two opposite sides are provided with insertion slots 1441 for horizontal insertion of the crossbar 141. The two ends of the crossbar 141 protrude from the storage box 144. Inside the storage box 144, there is a first limiting member 145 located on the bottom surface, and a second limiting member 146 and a third limiting member 147 located inside the storage box 144 and higher than the first limiting member 145. The first limiting member 145 is used to cooperate with the limiting hole 1411 on the side of the crossbar 141 for limiting. Specifically, the first limiting member 145 is a limiting protrusion. The second traveling wheel 142 and the second clamping assembly 143 are an integral structure, such as being connected at the top by a connecting plate 148. The second limiting member 146, the third limiting member 147 and the inner wall of the storage box 144 together form a space to accommodate the second traveling wheel 142 and the second clamping assembly 143. Specifically, the second traveling wheel 142 presses on the crossbar 141; the second clamping assembly 143 is located above the second traveling wheel 142; based on this arrangement, the installation of the crossbar 141 is more stable and the storage box 144 is smaller in size.
[0034] In some preferred embodiments, such as Figure 6 As shown, the second limiting member 146 consists of two parallel limiting rods, one of which supports the side of the second clamping assembly 143 adjacent to the second traveling wheel 142, and the other is used to limit the movement range of the bottom side of the second clamping assembly 143; the third limiting member 147 can be inserted into the gap between the second traveling wheel 142, the second clamping assembly 143, the connecting plate 148, and the second traveling wheel 142; the connecting plate 148 is in contact with the inner wall of the storage box 144; using limiting rods as limiting members can reduce the weight of the equipment and has a simple structure.
[0035] Preferably, the first limiting member 145, the second limiting member 146 and the third limiting member 147 are all made of nylon. Limiting members made of this material are lighter and have greater friction, elasticity and wear resistance. They can protect the surface of the crossbeam and auxiliary wheel structure from scratches, ensure the clamping firmness, and reduce movement and operation noise.
[0036] In some preferred embodiments, such as Figure 2 and Figure 3As shown, the second clamping assembly 143 includes a second body 1431, a second clamping plate 1432, and a second tightening bolt 1433; the second body 1431 has a second receiving groove 14311; the second receiving groove 14311 is used to receive the rail head of the rail; the second clamping plate 1432 is disposed inside the second receiving groove 14311, for example, the second receiving groove 14311 is a groove with a square cross-section, the second clamping plate 1432 is disposed parallel to the groove wall, and its top can be close to or away from the inner wall of the second receiving groove 14311. The inner wall of 14311 is movably connected; one end of the second tightening bolt 1433 passes through the second main body 1431 and abuts against the second clamping plate 1432, so that the second clamping plate 1432 can press against the rail head; when clamping the rail, the moving frame 1 is placed on the rail head, the rail head is located in the second receiving through groove 14311, the second clamping plate 1432 is located on one side of the rail head, and the second tightening bolt 1433 is turned until the second clamping plate 1432 clamps the rail head (and clamps it with the inner wall of the second receiving through groove 14311 on the other side), and the position is fixed. Based on the movable second clamping plate 1432 and the second tightening bolt 1433 clamping the rail head, it can adapt to different rail head shapes and rail curvatures. When clamping, it can fit against the side of the rail head, making the clamping more stable and the applicability wider.
[0037] Preferably, the inner wall of the second receiving groove 14311 has a second receiving recess 14312 for receiving the second clamping plate 1432; based on this, the width of the second receiving groove 14311 can be reduced; when installing the movable frame 1, the symmetry of the two sides is improved, that is, symmetrical grinding equipment can be set on the frame 11 to grind the two sides of the rail respectively.
[0038] In some preferred embodiments, such as Figure 2 As shown, the second clamping assembly 143 further includes a second retaining strip 1434 and a second guide rod 1435; the second retaining strip 1434 surrounds the top of the second clamping plate 1432 and its end is fixed to the inner wall of the second receiving through groove 14311; one end of the second guide rod 1435 is fixed to the inner wall of the second receiving through groove 14311, and the other end is disposed on the second retaining strip 1434; the second clamping plate 1432 has a second through hole 14321; the second guide rod 1435 passes through the second through hole 14321, and the second clamping plate 1432 can move closer to or away from the inner wall of the second receiving through groove 14311 along the second guide rod 1435, thereby clamping the rail head; the second guide rod 1435 guides the movement direction of the second clamping plate 1432 to ensure that it can clamp the side of the rail head, thereby ensuring the clamping area and clamping stability, and the setting of the second retaining strip 1434 can improve the installation stability of the second guide rod 1435.
[0039] Preferably, the size of the second through hole 14321 is larger than the cross-sectional size of the second guide rod 1435. Based on this, the second clamping plate 1432 can form different angles with the side of the clamped rail head to adapt to the clamping of rails with different curvatures, such as greater than 1-3mm.
[0040] Preferably, it includes at least two second guide rods 1435; the two second guide rods 1435 are arranged in parallel and spaced apart, which provides better guidance.
[0041] Preferably, the bottom of the second clamping plate 1432 is lower than the bottom of the rail head and bends away from the inner wall of the second receiving groove 14311 to form a limiting part between it and the inner wall of the second receiving groove 14311 on the other side. The width of the limiting part is at least less than the maximum width of the rail head to prevent the rail head from detaching from the second clamping assembly 143.
[0042] In some preferred embodiments, such as Figure 4 As shown, the indicating locking component 149 includes a handle 1491 and a screw 1492. The handle 1491 is used to tighten the screw 1492 and has an indicator mark to indicate the degree of tightening of the screw 1492. Alternatively, the indicator structure can be set on the threaded connection structure of the screw 1492. The handle 1491 is fixed to one end of the screw 1492. Compared to disassembly and assembly via bolts and connecting plates, or using cam locking and hinge plate structures for quick folding and fixing to disassemble and assemble the frame, the use of the handle 1491 and screw 1492 eliminates the need for external disassembly and assembly work. This reduces construction safety issues caused by using external disassembly tools. Furthermore, by using the handle 1491 with the indicator structure to tighten the screw 1492, the degree of tightening can be visually observed, improving installation accuracy, construction quality, and construction efficiency.
[0043] Example 2
[0044] This embodiment provides a grinding machine, such as Figure 1 As shown, it includes the auxiliary device 14 and frame 11, first traveling wheel 12 and first clamping assembly 13 as described in Embodiment 1 above; the top of the frame 11 is used to install the grinding assembly, and the bottom is used to install the first traveling wheel 12 and the first clamping assembly 13; the first traveling wheel 12 is used to travel on the rail head of the rail being ground; the first clamping assembly 13 is used to clamp the side of the rail head of the rail being ground to fix the position of the frame 11; one side of the auxiliary device 14 is connected to the frame 11 of the grinding machine, and the other side can be installed on the rail not being ground, and can move along the rail and be fixed on the rail.
[0045] The grinding machine of this utility model is based on the setting of a first traveling wheel 12 and a first clamping component 13, which enables the grinding machine to move along the rail to grind different weld beads, making it convenient to operate on site (on the installed rails); at the same time, the first clamping component 13 clamps the two sides of the rail head to fix the position, making the clamping more stable; with the setting of the auxiliary device 14, the stability of the frame 11 can be improved, especially at the rails at the railway curves, where one side is higher than the other. The setting of the auxiliary device 14 can ensure the stability of the frame 11 and prevent it from tilting, thereby ensuring the stability of the grinding effect. Moreover, the structure is simple, the weight is light, and it is easy to transport.
[0046] In some preferred embodiments, the mobile frame 1 is made of aluminum alloy to reduce the weight of the equipment and facilitate on-site installation and disassembly at the edges.
[0047] In some preferred embodiments, the structure of the first clamping assembly 13 is the same as that of the second clamping assembly 143, and will not be described in detail here.
[0048] The embodiments of the present invention have been described above with reference to the accompanying drawings. However, the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present invention without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of the present invention.
Claims
1. An auxiliary device for moving a rail weld bead grinding machine along a rail, the grinding machine being movable on the rail to be ground, characterized in that, The auxiliary device is connected to the frame of the grinding machine on one side and can be installed on the rail when not grinding, and can move along the rail and be fixed on the rail. The auxiliary device includes a crossbar, a second traveling wheel and a second clamping assembly. One end of the crossbar is detachably connected to the frame, and the other end is located above the rail when it is not being ground, and is detachably connected to the second traveling wheel and the second clamping assembly; The second traveling wheel is used to travel on the rail; The second clamping assembly is used to clamp the rail head of the rail to fix its position.
2. The auxiliary device for moving a rail weld bead grinding machine along the rail according to claim 1, characterized in that, The auxiliary device also includes a storage box; The storage box is installed on the vehicle frame and is used to store the crossbar, the second traveling wheel, and the second clamping assembly.
3. The auxiliary device for moving a rail weld bead grinding machine along the rail according to claim 2, characterized in that, The storage box is a box with an open top, and has insertion slots on two opposite sides for inserting the crossbar horizontally. The storage box is provided with a first limiting member located on the bottom surface, a second limiting member and a third limiting member located inside the storage box and higher than the first limiting member. The first limiting member is used to cooperate with the limiting hole on the side of the crossbar for limiting; The second traveling wheel and the second clamping assembly are an integral structure; The second limiting member, the third limiting member, and the inner wall of the storage box together form a space to accommodate the second traveling wheel and the second clamping assembly.
4. The auxiliary device for moving a rail weld bead grinding machine along the rail according to claim 3, characterized in that, The second limiting member consists of two parallel limiting rods, one of which is used to support the side of the second clamping assembly near the second traveling wheel, and the other is used to limit the range of movement of the bottom side of the second clamping assembly. The third limiting member can be inserted into the gap between the second traveling wheel, the second clamping assembly, the connecting plate, and the second traveling wheel; The connecting plate is attached to the inner wall of the storage box.
5. The auxiliary device for moving a rail weld bead grinding machine along the rail according to claim 1, characterized in that, The second clamping assembly includes a second body, a second clamping plate, and a second clamping bolt; The second body has a second receiving channel; The second receiving slot is used to receive the rail head of the rail; The second clamping plate is disposed inside the second receiving groove, and its top can be movably connected to the inner wall of the second receiving groove, either close to or away from the inner wall of the second receiving groove. One end of the second tightening bolt passes through the second body and abuts against the second clamping plate, so that the second clamping plate can abut against the rail head of the rail.
6. The auxiliary device for moving a rail weld bead grinding machine along the rail according to claim 5, characterized in that, The second clamping assembly also includes a second retaining strip and a second guide rod; The second enclosure strip is installed around the top of the second clamping plate, and its end is fixed to the inner wall of the second receiving groove; One end of the second guide rod is fixed to the inner wall of the second receiving groove, and the other end is disposed on the second enclosure strip; The second clamping plate has a second through hole; The second guide rod passes through the second through hole, and the second clamping plate can move closer to or further away from the inner wall of the second receiving through groove along the second guide rod, thereby clamping the rail head of the rail.
7. The auxiliary device for moving a rail weld bead grinding machine along the rail according to claim 6, characterized in that, The size of the second through hole is larger than the cross-sectional size of the second guide rod.
8. The auxiliary device for moving a rail weld bead grinding machine along the rail according to claim 7, characterized in that, Includes at least two second guide rods; The two second guide rods are arranged in parallel at intervals.
9. The auxiliary device for moving a rail weld bead grinding machine along the rail according to claim 5, characterized in that, The bottom of the second clamping plate is lower than the bottom of the rail head and bends away from the inner wall of the second receiving groove to form a limiting part between it and the inner wall of the second receiving groove on the other side, so as to prevent the rail head of the rail from detaching from the second clamping assembly.
10. A grinding machine, characterized in that, Includes the auxiliary device as described in any one of claims 1-9 and the vehicle frame, the first traveling wheel, and the first clamping assembly; The top of the frame is used to install the grinding assembly, and the bottom is used to install the first traveling wheel and the first clamping assembly. The first traveling wheel is used to travel on the rail head of the rail during the grinding operation; The first clamping assembly is used to clamp the rail head side of the rail during the grinding operation to fix the position of the vehicle frame; The auxiliary device is connected to the frame of the grinding machine on one side, and can be installed on the rail when not grinding, and can move along the rail and be fixed on the rail.