Railway passenger car axle end speed measuring gear three screw rod anti-loose sheet stop lug prying tool

Abstract

The utility model discloses a railway passenger car axle end speed measurement gear three screw rod anti -looseness piece stop ear prying tool, including locating disc, crowbar, locating bolt sleeve and handle, the back center of locating disc is linked with handle through connecting rod, the periphery of the front of locating disc is evenly distributed with three locating bolt sleeves, the front center of locating disc is provided with crowbar, the crowbar not include body, convex head and conical iron, the outside of body is evenly distributed with three convex heads, both sides of three convex heads are provided with the conical iron corresponding with screw rod anti -looseness piece setting. The utility model can make railway passenger car axle end speed measurement gear three screw rod anti -looseness piece six stop ears one -time fast and stick solid bolt head, owing to the narrow inside interval of deeper gear, has improved operation efficiency greatly, guarantees operation safety.

Description

Technical Field

[0001] This utility model relates to the technical field of railway passenger car maintenance tools, specifically to a tool for prying up the anti-loosening lug of a three-screw anti-loosening plate on a railway passenger car axle end speed measuring gear. Background Technology

[0002] The speed measuring gear at the axle end of a railway passenger car is a key component for train speed detection. Its anti-loosening lugs achieve their anti-loosening function through a tight fit between the lugs and the bolt head. Traditionally, a hammer and chisel are used to individually pry open the six lugs of the anti-loosening lugs. Due to the confined space and depth of the gear's interior, this process is prone to interference, resulting in low efficiency (3-5 minutes per lug for a single person) and a risk of hand injury from the chisel slippage, posing a serious safety hazard. Current technology lacks specialized tools for this scenario, hindering improvements in the quality and efficiency of maintenance work. Utility Model Content

[0003] To address the shortcomings of existing technologies, such as low efficiency and poor safety in manual operations, the purpose of this utility model is to provide a tool for prying up the anti-loosening lugs of the three-screw anti-loosening plate of the speed measuring gear at the axle end of a railway passenger car. This tool can quickly and easily pry up the six lugs of the anti-loosening plate of the three-screw anti-loosening plate of the speed measuring gear at the axle end of a railway passenger car and secure them to the bolt head. Due to the deep and narrow internal space of the gear, this tool greatly improves work efficiency and ensures work safety.

[0004] To achieve the above objectives, this utility model is implemented through the following technical solution: a tool for prying up the anti-loosening lug of a three-screw anti-loosening plate of a railway passenger car axle end speed measuring gear, including a positioning plate, a pry tool, a positioning bolt sleeve, and a handle. The center of the back of the positioning plate is connected to the handle through a connecting rod. Three positioning bolt sleeves are evenly distributed around the front perimeter of the positioning plate. A pry tool is provided at the center of the front of the positioning plate. The pry tool does not include the body, protrusions, and conical iron. Three protrusions are evenly distributed on the outer side of the body. Conical irons corresponding to the anti-loosening lug of the screw are provided on both sides of the three protrusions.

[0005] Preferably, the positioning disk is rotatably mounted on the skid, and the spring pin engages with the positioning hole of the positioning disk to achieve positioning.

[0006] Preferably, the positioning bolt sleeve is adapted to the position of the three bolt heads of the anti-loosening plate of the three-screw speed measuring gear at the axle end of the railway passenger car.

[0007] Preferably, the spacing between the three protrusions is adapted to the position of the six lugs of the anti-loosening plate.

[0008] Preferably, the taper of the tapered iron is 30°-60°.

[0009] Preferably, the surface of the handle is provided with anti-slip texture.

[0010] This utility model has the following beneficial effects:

[0011] 1. The operation of prying up six lugs can be completed in one go, reducing the operation time to less than 30 seconds and increasing efficiency by 6-10 times.

[0012] 2. Avoid direct contact between the hammer and chisel to eliminate the risk of hand cuts. Ensure stable positioning of the tool and bolt head to prevent slippage.

[0013] 3. The positioning plate and positioning bolts ensure that the tool and the anti-loosening plate are precisely aligned, and the verticality error of the anti-loosening plate after prying is ≤1°, with a fit of over 98%.

[0014] 4. Designed for the narrow space inside the gear, the convex head structure is adapted to the standard anti-loosening plate size and is compatible with various models of shaft end speed measuring gears. Attached Figure Description

[0015] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments;

[0016] Figure 1 This is a schematic diagram of the structure of this utility model. Detailed Implementation

[0017] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0018] Reference Figure 1 The specific implementation adopts the following technical solution: a tool for prying up the anti-loosening plate of the three-screw speed measuring gear on the axle end of a railway passenger car, including a positioning plate 1, a pry tool 2, a positioning bolt sleeve 3, and a handle 4. The center of the back of the positioning plate 1 is connected to the handle 4 through a connecting rod. Three positioning bolt sleeves 3 are evenly distributed around the front periphery of the positioning plate 1. A pry tool 2 is set at the center of the front of the positioning plate 1. The pry tool 2 does not include a body 21, a protrusion 22, and a conical iron 23. Three protrusions 22 are evenly distributed on the outer side of the body 21. Conical iron 23 corresponding to the anti-loosening plate of the screw is set on both sides of the three protrusions 22.

[0019] It is worth noting that the positioning disk 1 is rotatably mounted on the pry bar 2, and the spring pin cooperates with the positioning hole of the positioning disk 1 to achieve positioning.

[0020] It is worth noting that the positioning bolt sleeve 3 is adapted to the position of the three bolt heads of the anti-loosening plate of the three screws of the speed measuring gear at the axle end of the railway passenger car.

[0021] It is worth noting that the spacing between the three protrusions 22 is adapted to the position of the six lugs of the anti-loosening plate.

[0022] It is worth noting that the taper of the tapered iron 23 is 30°-60°.

[0023] In addition, the surface of the handle 4 is provided with anti-slip texture.

[0024] The working principle of this specific implementation method is as follows:

[0025] Before prying up the locking lugs, first rotate the positioning plate to position it so that the spring pin falls into the positioning hole of the positioning plate. Then, put the three positioning bolts of the tool on the bolt head, tighten the pry tool and place it in the locking lug gap of the anti-loosening plate. After the bottom surface of the pry tool is pressed firmly against the anti-loosening plate, rotate the handle up and down. Using the three protrusions of the pry tool, the locking lugs in the middle of the left and right conical iron on the protrusions are pried up, so that the six locking lugs of the anti-loosening plate can be raised and tightened quickly.

[0026] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A railway passenger car axle end speed measuring gear three screw rod anti-loose sheet stop lug prying tool, characterized in that, The device includes a positioning plate (1), a pry bar (2), a positioning bolt sleeve (3), and a handle (4). The center of the back of the positioning plate (1) is connected to the handle (4) via a connecting rod. Three positioning bolt sleeves (3) are evenly distributed around the front periphery of the positioning plate (1). A pry bar (2) is provided at the center of the front of the positioning plate (1). The pry bar (2) does not include a body (21), a protrusion (22), and a conical iron (23). Three protrusions (22) are evenly distributed on the outer side of the body (21). Conical irons (23) corresponding to the anti-loosening plates of the screw are provided on both sides of the three protrusions (22).

2. The tool for prying up the anti-loosening lug of the three-screw anti-loosening plate of the railway passenger car axle end speed measuring gear according to claim 1, characterized in that, The positioning disk (1) is rotatably mounted on the pry bar (2), and the spring pin engages with the positioning hole of the positioning disk (1) to achieve positioning.

3. The tool for prying up the anti-loosening lug of the three-screw anti-loosening plate of the railway passenger car axle end speed measuring gear according to claim 1, characterized in that, The positioning bolt sleeve (3) is adapted to the position of the three bolt heads of the anti-loosening plate of the three screw of the speed measuring gear at the axle end of the railway passenger car.

4. The tool for prying up the anti-loosening lug of the three-screw anti-loosening plate of the railway passenger car axle end speed measuring gear according to claim 1, characterized in that, The spacing between the three protrusions (22) is adapted to the position of the six lugs of the anti-loosening plate.

5. The tool for prying up the anti-loosening lug of the three-screw anti-loosening plate of the railway passenger car axle end speed measuring gear according to claim 1, characterized in that, The taper of the tapered iron (23) is 30°-60°.

6. The tool for prying up the anti-loosening lug of the three-screw anti-loosening plate of the railway passenger car axle end speed measuring gear according to claim 1, characterized in that, The surface of the handle (4) is provided with anti-slip texture.

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