Polishing and grinding device for train hand wheel

Abstract

The utility model relates to the field of train hand wheels, and discloses a polishing and grinding device for a train hand wheel, which comprises a polishing and grinding device body, the polishing and grinding device body comprises a handheld part, a machine head and a grinding disc, and a buffer mechanism is arranged at the bottom of the machine head. Due to the fact that the buffering mechanism is arranged at the top of the grinding disc, the device can properly and elastically move during grinding, the internal elastic piece can absorb vibration and impact force generated in the grinding process, the buffering effect of the elastic piece can reduce hard collision between the grinding disc and a workpiece, and the situation that the workpiece or the grinding disc is damaged due to sudden impact is avoided; therefore, the service life of the millstone is prolonged, the burden of arms and wrists of an operator can be relieved, and the comfort degree of long-time operation is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to train hand wheel field, especially a kind of polishing and grinding device for train hand wheel. BACKGROUND

[0002] Handheld polisher is a portable polishing and grinding device, suitable for polishing smaller components such as train hand wheels, which can effectively remove rust, dirt and unevenness on the surface of train hand wheels, and restore smooth appearance and good hand feeling.

[0003] However, the present inventors found that the above-mentioned technology at least has the following technical problems in the process of implementing the technical solutions of the embodiments of the present application:

[0004] The existing device will produce vibration and impact force on the user's arm and wrist during polishing, which will cause the user's hand to bear additional burden during operation, and will easily cause hand fatigue after long-term use. SUMMARY

[0005] The polishing and grinding device for train hand wheels provided by the embodiments of the present application solves the technical problem of vibration and impact force on the user's arm and wrist during polishing of the device in the prior art, reduces the burden on the operator's arm and wrist, improves the comfort of long-term operation, and achieves the technical effect of reducing fatigue.

[0006] To solve the above technical problems, the utility model provides the following technical scheme:

[0007] The polishing and grinding device for train hand wheels comprises a polishing and grinding device body, a handheld portion, a machine head and a polishing disc, the bottom of the machine head is provided with a buffer mechanism, and the buffer mechanism comprises:

[0008] A receiving space is arranged inside the machine head.

[0009] Two groups of sliding channels are symmetrically arranged at the lower side of the receiving space.

[0010] A second fixing plate is provided at the top of the receiving space, and a second bolt is symmetrically arranged on one side of the second fixing plate.

[0011] A telescopic portion is provided at the bottom of the second fixing plate, and comprises a fixing rod and a fixing cylinder.

[0012] An elastic member is arranged on one side of the outer surface of the telescopic portion.

[0013] A first fixing plate has a first bolt. The first fixing plate is disposed at the bottom of the telescopic part, and two sets of the first bolts are symmetrically disposed on one side of the first fixing plate.

[0014] The fixing rod is fixedly connected to the middle part of the second fixing plate, the fixing cylinder is fixedly connected to the middle part of the first fixing plate, and the two ends of the elastic element are in contact with the second fixing plate and the first fixing plate.

[0015] The connecting part has a slider, and the connecting part is disposed at the bottom of the first fixing plate. Two sets of sliders are symmetrically disposed on both sides of the connecting part slightly above it.

[0016] The slider is inserted into the slide rail;

[0017] Two sets of limiting components are symmetrically arranged at the bottom of the machine head.

[0018] In a preferred embodiment of this utility model, the second fixing plate is threadedly connected to the top of the accommodating space by a second bolt, and the first fixing plate is threadedly connected to the top of the connecting part by a first bolt.

[0019] As a preferred embodiment of this utility model, the first fixing plate and the second fixing plate are of the same size, and the first fixing plate, the second fixing plate and the telescopic part are in the shape of an I-beam.

[0020] In a preferred embodiment of this utility model, the elastic element is a spring, and both ends of the elastic element are welded to the second fixing plate and the first fixing plate.

[0021] In a preferred embodiment of this invention, the connecting part is movably connected to the machine head via the slider.

[0022] In a preferred embodiment of this utility model, the fixing cylinder and the fixing rod are movably connected, and the fixing cylinder is hollowed out.

[0023] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages:

[0024] 1. By setting a buffer mechanism on the top of the grinding disc, the device can move appropriately and elastically during grinding. The internal elastic element can absorb the vibration and impact generated during grinding. The buffering effect of the elastic element can also reduce the hard collision between the grinding disc and the workpiece, avoiding damage to the workpiece or grinding disc due to sudden impact, thereby extending the service life of the grinding disc. At the same time, it can also reduce the burden on the operator's arms and wrists, thereby improving the comfort of long-term operation. Therefore, it effectively solves the technical problem of vibration and impact on the user's arms and wrists during grinding in the prior art, thereby achieving the technical effect of reducing the burden on the operator's arms and wrists, improving the comfort of long-term operation, and reducing fatigue. Attached Figure Description

[0025] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0026] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0027] Figure 2 This is a partial cross-sectional view of the head structure of this utility model;

[0028] Figure 3 This is the utility model Figure 2 Enlarged view of part A in the image;

[0029] In the figure: 1. Polishing and grinding device body; 2. Handheld part; 3. Machine head; 4. Grinding disc; 5. Buffer mechanism; 6. Accommodation space; 7. Slide rail; 8. Second fixing plate; 801. Second bolt; 9. Telescopic part; 901. Fixing rod; 902. Fixing cylinder; 10. Elastic element; 11. First fixing plate; 111. First bolt; 12. Connecting part; 121. Slider; 13. Limiting element. Detailed Implementation

[0030] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0031] In the attached diagram, all identical reference numerals refer to the same components. Example

[0032] like Figures 1-3 As shown, this utility model provides a polishing and grinding device for train handwheels, including a polishing and grinding device body 1. The polishing and grinding device body 1 includes a handheld part 2, a head 3, and a grinding disc 4. A buffer mechanism 5 is provided at the bottom of the head 3. The buffer mechanism 5 includes:

[0033] The accommodating space 6 is located inside the machine head 3;

[0034] Slide 7, two sets of slide 7 are symmetrically arranged on both sides of the accommodating space 6 at the lower part;

[0035] The second fixing plate 8 has a second bolt 801. The second fixing plate 8 is disposed on the top of the accommodating space 6, and the second bolt 801 is symmetrically disposed on one side of the second fixing plate 8.

[0036] The telescopic part 9 has a fixing rod 901 and a fixing cylinder 902, and the telescopic part 9 is disposed at the bottom of the second fixing plate 8;

[0037] Elastic element 10 is disposed on one side of the outer surface of telescopic part 9;

[0038] The first fixing plate 11 has a first bolt 111. The first fixing plate 11 is disposed at the bottom of the telescopic part 9, and two sets of first bolts 111 are symmetrically disposed on one side of the first fixing plate 11.

[0039] Among them, the fixing rod 901 is fixedly connected to the middle part of the second fixing plate 8, the fixing cylinder 902 is fixedly connected to the middle part of the first fixing plate 11, and the two ends of the elastic member 10 are in contact with the second fixing plate 8 and the first fixing plate 11.

[0040] The connecting part 12 has a slider 121. The connecting part 12 is located at the bottom of the first fixing plate 11, and two sets of sliders 121 are symmetrically arranged on both sides of the connecting part 12 at the upper part.

[0041] Slider 121 is inserted into slide rail 7;

[0042] Limiting components 13, two sets of limiting components 13 are symmetrically arranged at the bottom of the machine head 3.

[0043] Specifically, such as Figures 1-3 As shown, the accommodating space 6 is used to fix the connecting part 12 to the elastic element 10 inside the machine head 3 via the telescopic part 9. The second bolt 801 is used to fix the second fixing plate 8 inside the accommodating space 6. The second fixing plate 8 and the first fixing plate 11 are used to install the telescopic part 9 and the elastic element 10. The first bolt 111 is used to fix the first fixing plate 11 to the top of the connecting part 12. The slide 7 is used to install the slider 121. The slider 121 is used to fix the connecting part 12 inside the slide 7, so that the connecting part 12 can move up and down inside the slide 7 through the slider 121, thereby squeezing the elastic element 10 and the telescopic part 9 to reduce the vibration generated during grinding.

[0044] The second fixing plate 8 is threadedly connected to the top of the accommodating space 6 by the second bolt 801, and the first fixing plate 11 is threadedly connected to the top of the connecting part 12 by the first bolt 111.

[0045] Specifically, such as Figures 1-3 As shown, the bolt connection ensures that the second fixing plate 8 and the first fixing plate 11 are firmly fixed to the top of the accommodating space 6 and the connecting part 12, respectively, which enhances the overall stability of the device and effectively prevents loosening or displacement caused by external force or vibration during use.

[0046] The first fixing plate 11 and the second fixing plate 8 have the same dimensions, and the first fixing plate 11, the second fixing plate 8 and the telescopic part 9 are in the shape of an I-shape.

[0047] Specifically, such as Figures 1-3 As shown, the first fixing plate 11 and the second fixing plate 8 are the same size, forming a symmetrical structure, which helps to maintain the balance and stability of the device and avoid tilting or shifting due to asymmetry. The I-shaped design has excellent bending and torsional resistance in mechanics, and can effectively withstand the pressure and vibration generated by the grinding disc pressing the device during grinding, ensuring the stability of the overall structure.

[0048] The elastic element 10 is a spring, and both ends of the elastic element 10 are welded to the second fixing plate 8 and the first fixing plate 11.

[0049] The elastic element 10 is a spring, and the connecting part 12 is movably connected to the machine head 3 through the slider 121.

[0050] Specifically, such as Figures 1-3 As shown, the elastic element 10 uses a spring that can effectively absorb and reduce the vibration and impact generated during the grinding process, which can significantly reduce the burden on the user's arms and wrists, thereby improving comfort during long-term operation.

[0051] The fixed cylinder 902 and the fixed rod 901 are movably connected, and the fixed cylinder 902 is hollow.

[0052] Operating principle: When the grinding disc 4 of the device grinds the train handwheel, the grinding disc 4 and the connecting part 12 will move up and down inside the slide rail 7 through the slider 121, thereby squeezing the elastic element 10 and the telescopic part 9 in the control space. After being squeezed, the elastic element 10 will produce elastic deformation, absorbing and relieving the vibration and impact caused by external force, thereby relieving the damage to the user's hand, reducing the burden on the operator's arm and wrist, thereby improving the comfort of long-term operation and reducing fatigue.

[0053] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A polishing and grinding device for train handwheels, comprising a polishing and grinding device body (1), wherein the polishing and grinding device body (1) includes a handheld part (2), a machine head (3), and a grinding disc (4), characterized in that, The bottom of the machine head (3) is provided with a buffer mechanism (5), the buffer mechanism (5) includes: A accommodating space (6) is disposed inside the head (3); Slides (7), two sets of slides (7) are symmetrically arranged on both sides of the accommodating space (6) at a lower position; The second fixing plate (8) has a second bolt (801). The second fixing plate (8) is disposed on the top of the accommodating space (6), and the second bolt (801) is symmetrically disposed on one side of the second fixing plate (8). The telescopic part (9) has a fixing rod (901) and a fixing cylinder (902), and the telescopic part (9) is disposed at the bottom of the second fixing plate (8); An elastic element (10) is disposed on one side of the outer surface of the telescopic part (9); The first fixing plate (11) has a first bolt (111). The first fixing plate (11) is disposed at the bottom of the telescopic part (9). Two sets of the first bolts (111) are symmetrically disposed on one side of the first fixing plate (11). The fixing rod (901) is fixedly connected to the middle part of the second fixing plate (8), the fixing cylinder (902) is fixedly connected to the middle part of the first fixing plate (11), and the two ends of the elastic member (10) are in contact with the second fixing plate (8) and the first fixing plate (11); The connecting part (12) has a slider (121). The connecting part (12) is disposed at the bottom of the first fixing plate (11), and two sets of sliders (121) are symmetrically disposed on both sides of the connecting part (12) at the upper part. The slider (121) is inserted into the slide rail (7); Limiting member (13), two sets of the limiting member (13) are symmetrically arranged at the bottom of the machine head (3).

2. The polishing and grinding device for train handwheels according to claim 1, characterized in that, The second fixing plate (8) is threaded to the top of the accommodating space (6) by the second bolt (801), and the first fixing plate (11) is threaded to the top of the connecting part (12) by the first bolt (111).

3. The polishing and grinding device for train handwheels according to claim 1, characterized in that, The first fixing plate (11) and the second fixing plate (8) are the same size, and the first fixing plate (11), the second fixing plate (8) and the telescopic part (9) are in the shape of an I.

4. The polishing and grinding device for train handwheels according to claim 1, characterized in that, The elastic element (10) is a spring, and the two ends of the elastic element (10) are welded to the second fixing plate (8) and the first fixing plate (11).

5. A polishing and grinding device for train handwheels according to claim 1, characterized in that, The connecting part (12) is movably connected to the machine head (3) via the slider (121).

6. A polishing and grinding device for train handwheels according to claim 1, characterized in that, The fixed cylinder (902) and the fixed rod (901) are movably connected, and the fixed cylinder (902) is hollow.

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