Elastic clamping and adjusting mechanism for grinding wheel of rail web grinding machine

Abstract

The utility model discloses a rail web polisher grinding wheel elastic clamping adjusting mechanism which comprises a quick clamp, an adjusting bolt, a connecting frame, an adjusting handle, a rotating pin and an elastic adjusting arm, the quick clamp is installed on an installation plate of a polishing mechanism, a middle pin shaft of the quick clamp is in threaded connection with the adjusting bolt, and the head of the adjusting bolt penetrates through the middle of the connecting frame. The adjusting bolt is further in threaded connection with a nut opposite to the connecting frame, the head of the adjusting bolt is rotationally provided with an adjusting handle capable of being driven to rotate and achieving self-locking, and rotating pins capable of rotating are vertically inserted into connecting openings in the two ends of the connecting frame and are flexibly connected with a polishing mounting frame of the polishing mechanism through elastic adjusting arms. By means of the mode, clamping force of polishing mechanisms on the two sides and the single side can be adjusted, bolts can be conveniently adjusted, labor is saved, self-locking can be achieved, it is guaranteed that loosening cannot occur in the vibration process, flexible connection is achieved, and the elastic connecting arm is self-adaptive to rapid clamping and continuous angle changes after loosening.

Description

Technical Field

[0001] The utility model relates to the technical field of railway construction, in particular to an elastic clamping and adjusting mechanism for a grinding wheel of a rail waist grinder. Background Art

[0002] Existing rail waist grinding machines such as Figure 1 As shown, it includes a traveling mechanism 01 mounted on the rail, a grinding mechanism 02 rotatably installed on both sides of the traveling mechanism 01 for grinding the rail waist, and a quick clamping assembly 03 arranged on the traveling mechanism 01 for adjusting the clamping force of the grinding wheels of the grinding mechanisms 02 on both sides. The existing quick clamping assembly 03 has the following defects: an auxiliary wrench is required to rotate the bolt a, which is difficult to adjust; the vibration of the rail waist grinder during operation may cause the bolt to loosen, affecting the clamping force of the grinding wheels of the grinding mechanisms 02 on both sides and affecting the subsequent grinding effect; the connection angle between the connecting plate b and the elastic adjustment arm c is fixed, and the elastic adjustment arm c is prone to deformation during the clamping or pushing process of the grinding mechanism 02.

[0003] Based on the above defects and shortcomings, it is necessary to improve the existing technology and design an elastic clamping adjustment mechanism for the grinding wheel of a rail waist grinder. Utility Model Content

[0004] The main technical problem solved by the utility model is to provide an elastic clamping adjustment mechanism for the grinding wheel of a rail waist grinder, which can adjust the clamping force of the grinding mechanism on both sides and on one side, facilitate the adjustment of bolts, save effort, and can be self-locking to ensure that it will not loosen during vibration. It has a flexible connection and adaptive fast clamping and continuous angle changes of the elastic connecting arm after loosening.

[0005] In order to solve the above technical problems, a technical solution adopted by the utility model is: to provide an elastic clamping and adjustment mechanism for the grinding wheel of a rail waist grinder, which is arranged above the traveling mechanism of the rail waist grinder and connected to the grinding mechanisms on both sides of the rail waist grinder. The grinding mechanisms on both sides are rotatably installed on the traveling mechanism and driven by a power unit to rotate up and down to grind the rail waist.

[0006] The elastic clamping adjustment mechanism of the grinding wheel of the rail waist grinder includes a quick clamp, an adjusting bolt, a connecting frame, an adjusting handle, a rotating pin and an elastic adjusting arm. The quick clamp is installed on the mounting plate of the grinding mechanism. The adjusting bolt is threadedly connected to the middle pin shaft of the quick clamp. The outer diameter of the adjusting bolt head is larger than its rod. The adjusting bolt head passes through the middle of the connecting frame. The adjusting bolt head is abutted against the connecting frame. A nut is also threadedly connected to the adjusting bolt. The nut is abutted against the connecting frame. An adjusting handle that can drive it to rotate and realize self-locking is rotatably installed on the adjusting bolt head. Connecting openings are provided at both ends of the connecting frame. A rotatable rotating pin is vertically inserted at the connecting opening. The rotating pin is flexibly connected to the grinding mounting frame of the grinding mechanism through an elastic adjusting arm.

[0007] Preferably, the adjustment handle includes a shaft portion horizontally passing through the head of the adjustment bolt and handle portions mounted to both ends of the shaft portion.

[0008] Preferably, the elastic adjustment arm includes an adjusting screw, an adjusting block, a limit nut, a tension spring and a quick lock assembly. A through hole is opened in the horizontal direction of the rotating pin. The adjusting screw passes through the through hole on the rotating pin and is threadedly connected to the adjusting block. A limit nut capable of locking the adjusting screw is also installed on the adjusting screw. The adjusting block is located in the tension spring and fixedly connected to one end of the tension spring. The other end of the tension spring is clamped on the quick lock assembly. The quick lock assembly is installed on the grinding mounting frame of the grinding mechanism.

[0009] Preferably, the quick-lock assembly comprises a mounting sleeve fixed to the grinding mounting frame and a quick-lock screw threadedly mounted on the mounting sleeve, and a gasket is also sleeved on the quick-lock screw.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] The setting of the adjustment handle can be opened on the one hand, and the adjustment handle can be turned to rotate the adjustment bolt to control the clamping force of the grinding mechanism on both sides, which is convenient for adjusting the bolt and saves effort; on the other hand, it can be turned back to self-lock to ensure that the adjustment bolt will not loosen during vibration;

[0012] Turn the adjusting screw of the single-sided elastic adjusting arm to adjust the clamping force of the single-sided grinding wheel;

[0013] The addition of a rotating pin can better adapt to the continuous angle changes of the elastic connecting arm after rapid clamping and loosening, making the overall mechanism smoother and more flexible. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of an existing rail waist grinding machine.

[0015] Figure 2 The present invention is a structural schematic diagram of an elastic clamping and adjusting mechanism for a grinding wheel of a rail waist grinder.

[0016] Figure 3 The figure is a front view of an elastic clamping and adjusting mechanism for the grinding wheel of a rail waist grinder.

[0017] Figure 4 The present invention is a schematic diagram of the partial structure of an elastic clamping adjustment mechanism for the grinding wheel of a rail waist grinder.

[0018] Figure 5 The present invention is a schematic diagram of the structure of an adjustment handle of an elastic clamping adjustment mechanism for a grinding wheel of a rail waist grinder.

[0019] Figure 6 The present invention is a schematic diagram of the structure of an elastic adjustment arm of an elastic clamping adjustment mechanism for a grinding wheel of a rail waist grinder.

[0020] Figure 7 for Figure 2 A partial enlarged view of .

[0021] Among them, 01, walking mechanism, 011, walking frame, 012, walking wheel, 013, walking electric push cylinder, 014, rail head clamping piece; 02, grinding mechanism, 021, rotating shaft, 022, fixing clamp, 023, fixing shaft, 024, grinding mounting frame, 025, mounting plate, 026, grinding motor, 027, grinding wheel, 028, balance spring; 03, quick clamping assembly; 04, power unit;

[0022] 1. Quick clamp, 2. Adjusting bolt, 21. Nut, 3. Connecting frame, 4. Adjusting handle, 41. Rotating shaft, 42. Handle, 5. Rotating pin, 6. Elastic adjusting arm, 61. Adjusting screw, 62. Adjusting block, 63. Limiting nut, 64. Tension spring, 65. Quick lock assembly, 651. Mounting sleeve, 652. Quick lock screw. DETAILED DESCRIPTION

[0023] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0024] See also Figures 2 to 7 , the utility model embodiment includes:

[0025] A rail waist grinder grinding wheel elastic clamping adjustment mechanism is arranged above the traveling mechanism 01 of the rail waist grinder and connected to the grinding mechanisms 02 on both sides of the rail waist grinder, and is used to adjust the grinding wheel clamping force of the grinding mechanisms 02 on both sides. The grinding mechanisms 02 on both sides are rotatably installed on the traveling frame 011 of the traveling mechanism 01; the grinding mechanisms 02 on both sides are driven by a power unit 04 to rotate up and down to grind the rail waist.

[0026] The elastic clamping and adjusting mechanism of the grinding wheel of the rail waist grinder includes a quick clamp 1, an adjusting bolt 2, a connecting frame 3, an adjusting handle 4, a rotating pin 5 and an elastic adjusting arm 6. The quick clamp 1 is installed on the mounting plate 025 of the grinding mechanism 02. The adjusting bolt 2 is threadedly connected to the middle pin shaft of the quick clamp 1. The outer diameter of the head of the adjusting bolt 2 is larger than its rod. The head of the adjusting bolt 2 passes through the middle part of the connecting frame 3. The head of the adjusting bolt 2 is against the connecting frame 3. The adjusting bolt 2 is also threadedly connected with a nut 21, and the nut 21 is connected to the connecting frame 3. The connecting frame 3 is abutted against each other, and the head of the adjusting bolt 2 passing through the connecting frame 3 is rotatably installed with an adjusting handle 4. The connecting frame 3 is provided with connecting openings at both ends, and a rotating pin 5 that can rotate is vertically inserted at the connecting opening. The rotating pin 5 is flexibly connected to the grinding mounting frame 024 of the grinding mechanism 02 through an elastic adjustment arm 6. The adjusting handle 4 includes a rotating shaft portion 41 that horizontally passes through the head of the adjusting bolt 2 and a handle portion 42 installed at both ends of the rotating shaft portion 41. Loosen the nut 21, the nut 21 is away from the connecting frame 3, and the nut 21 is connected to the connecting frame When the adjusting bolt 2 is rotated, the nut 21 rotates synchronously therewith, the hand-held handle part 42 is opened outward, and the adjusting handle 4 is rotated, and the adjusting handle 4 drives the adjusting bolt 2 to rotate. When the adjusting bolt 2 moves to the right, at the same time, the head of the adjusting bolt 2 pushes the connecting frame 3 to move to the right; when the adjusting bolt 2 moves to the left, the head of the adjusting bolt 2 moves leftward accordingly, and the elastic adjusting arm 6 elastically pulls the connecting frame 3 to move left until the outer end surface of the connecting frame 3 abuts against the head of the adjusting bolt 2, thereby adjusting the relative distance between the connecting frame 3 and the quick clamp 1, and then adjusting the clamping force of the grinding wheel of the grinding mechanism 02 on both sides, which is convenient for adjustment and labor-saving. After adjustment, the nut 21 is locked, and the nut 21 is close to the end surface of the connecting frame 3. The nut 21 can lock the adjusting bolt 2 to prevent the adjusting bolt 2 from loosening during the grinding vibration process. After closing the adjusting handle 4, the handle part 42 abuts against the connecting frame 3, limiting the rotation of the adjusting bolt 2 and realizing self-locking. The setting of the adjusting handle 4 can facilitate the adjustment of the bolt on the one hand; on the other hand, it can be self-locking to ensure that it will not loosen during the vibration process.

[0027] The elastic adjustment arm 6 includes an adjusting screw 61, an adjusting block 62, a limiting nut 63, a tension spring 64 and a quick-locking assembly 65. A through hole is opened in the horizontal direction of the rotating pin 5. The adjusting screw 61 passes through the through hole on the rotating pin 5 and is threadedly connected to the adjusting block 62. The adjusting screw 61 is also equipped with a limiting nut 63 that can lock the adjusting screw 61. The adjusting block 62 is located in the tension spring 64 and is fixedly connected to one end of the tension spring 64. The other end of the tension spring 64 is clamped on the quick-locking assembly 65. The quick-locking assembly 65 is installed on the grinding mounting frame 024 of the grinding mechanism 02. The adjusting screw 61 of the unilateral elastic adjustment arm 6 is rotated to adjust the clamping force of the unilateral grinding wheel.

[0028] The quick-lock assembly 65 includes a mounting sleeve 651 fixed to the grinding mounting frame 024 and a quick-lock screw 652 threadedly mounted on the mounting sleeve 651. A gasket is also sleeved on the quick-lock screw 652. After the hook at one end of the tension spring 64 is clamped on the quick-lock screw 652, the quick-lock screw 652 is locked.

[0029] The walking mechanism 01 includes a walking frame 011, a walking wheel 012 installed on the walking frame 011 and mounted on the rail, and a walking electric push cylinder 013 installed on the walking frame 011. The tail of the walking electric push cylinder 013 is rotatably installed on the walking frame 011; the piston rod of the walking electric push cylinder 013 is rotatably connected to the rail head clamp 014, and the rail head clamp 014 is fixedly installed on the rail.

[0030] The grinding mechanism 02 includes a rotating shaft 021, a fixing clamp 022, a fixed shaft 023, a grinding mounting frame 024, a mounting plate 025, a grinding motor 026, a grinding wheel 027 and a balancing spring 028. The rotating shaft 021 is installed on the traveling frame 011 through a bearing seat. Fixing clamps 022 are installed at both ends of the rotating shaft 021. The fixed shaft 023 is vertically installed on the fixing clamp 022. The two grinding mounting frames 024 are movably sleeved on the fixed shaft 023. The upper ends of the two fixed shafts 023 are fixedly connected by a mounting plate 025. A grinding motor 026 is installed at the protruding end of the grinding mounting frame 024. The grinding motor 026 drives the grinding wheel 027 to rotate. The two sides of the mounting plate 025 are elastically connected to the traveling frame 011 through a balancing spring 028. The balancing spring 028 is added to ensure that the grinding mechanism 02 runs more stably when it swings up and down.

[0031] When the elastic clamping adjustment mechanism of the grinding wheel of the rail waist grinder of the utility model is working, the grinding wheels 027 of the grinding mechanisms 02 on both sides of the rail waist can be quickly fitted to the rail waist, and the adjusting bolts 2 can control the overall clamping force of the grinding wheels 027 on both sides. When working, the adjusting handle 4 can be opened, the adjusting handle 4 is twisted, and then the adjusting bolt 2 is rotated to control the clamping force; after the adjustment is completed, the adjusting handle 4 is bent back Figure 4The position shown in can effectively prevent the loosening of the adjusting bolt 2 caused by vibration of the rail waist grinder during operation, thereby ensuring the stability of grinding; two rotating pins 5 are respectively installed on the connecting plate, and the middle of the rotating pin 5 passes through the hexagonal cylindrical head adjusting screw 61, and the other end of the adjusting screw 61 is connected to the adjusting block 62 of the elastic connecting arm through a thread. When the grinding wheels 027 on both sides are inconsistent due to rail errors, different rust levels on both sides and other factors, the clamping force on one side can be controlled by adjusting the adjusting screws 61 on both sides separately to achieve consistency in the grinding effects on both sides; at the same time, by adding the rotating pin 5, it can better adapt to the continuous angle changes of the elastic connecting arm after rapid clamping and loosening, making the overall mechanism smoother and more flexible, and the walking mechanism 01 drives the grinding mechanisms 02 on both sides to walk and grind, and the grinding mechanisms 02 on both sides are driven by the power unit 04 to rotate up and down to grind the rail waist.

[0032] The utility model discloses an elastic clamping adjustment mechanism for the grinding wheel of a rail waist grinder, which can synchronously adjust the clamping force of the grinding mechanisms on both sides, facilitates the adjustment of bolts, saves effort, and can be self-locking to ensure that it will not loosen during vibration; it can adjust the clamping force of the grinding mechanism on one side, has a flexible connection, and can adaptively and quickly clamp and release the elastic connecting arm to continuously change the angle.

[0033] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An elastic clamping and adjusting mechanism for a grinding wheel of a rail waist grinder, arranged above a traveling mechanism (01) of the rail waist grinder and connected to two side grinding mechanisms (02) of the rail waist grinder, the two side grinding mechanisms (02) being rotatably mounted on the traveling mechanism (01) and driven by a power unit (04) to rotate up and down to grind the rail waist, characterized in that: The invention comprises a quick clamp (1), an adjusting bolt (2), a connecting frame (3), an adjusting handle (4), a rotating pin (5) and an elastic adjusting arm (6), wherein the quick clamp (1) is mounted on a mounting plate (025) of a grinding mechanism (02), the adjusting bolt (2) is threadedly connected to the middle pin shaft of the quick clamp (1), the outer diameter of the head of the adjusting bolt (2) is larger than the rod, the head of the adjusting bolt (2) passes through the middle part of the connecting frame (3), the head of the adjusting bolt (2) abuts against the connecting frame (3), a nut (21) is threadedly connected to the adjusting bolt (2), the nut (21) abuts against the connecting frame (3), the head of the adjusting bolt (2) is rotatably mounted with an adjusting handle (4) capable of driving the adjusting bolt to rotate and realize self-locking, connecting openings are arranged at both ends, a rotating pin (5) capable of rotating is vertically inserted at the connecting opening, and the rotating pin (5) is flexibly connected to the grinding mounting frame (024) of the grinding mechanism (02) through the elastic adjusting arm (6).

2. The elastic clamping and adjusting mechanism for the grinding wheel of a rail waist grinding machine according to claim 1, characterized in that: The adjustment handle (4) comprises a rotating shaft portion (41) horizontally passing through the head of the adjustment bolt (2), and handle portions (42) mounted on both ends of the rotating shaft portion (41).

3. The elastic clamping and adjusting mechanism for the grinding wheel of a rail waist grinding machine according to claim 1, characterized in that: The elastic adjustment arm (6) comprises an adjusting screw (61), an adjusting block (62), a limiting nut (63), a tension spring (64) and a quick lock assembly (65); a through hole is opened in the horizontal direction of the rotating pin (5); the adjusting screw (61) passes through the through hole on the rotating pin (5) and is threadedly connected to the adjusting block (62); a limiting nut (63) capable of locking the adjusting screw (61) is also installed on the adjusting screw (61); the adjusting block (62) is located in the tension spring (64) and is fixedly connected to one end of the tension spring (64); the other end of the tension spring (64) is clamped on the quick lock assembly (65); and the quick lock assembly (65) is installed on the grinding mounting frame (024) of the grinding mechanism (02).

4. The elastic clamping and adjusting mechanism for the grinding wheel of a rail waist grinding machine according to claim 3 is characterized in that: The quick-lock assembly (65) comprises a mounting sleeve (651) fixed to the grinding mounting frame (024) and a quick-lock screw (652) threadedly mounted on the mounting sleeve (651), wherein a gasket is also sleeved on the quick-lock screw (652).

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