Portable door shaft pin cutting tool for railway wagon

Abstract

A portable door shaft pin cutting tool for a railway wagon belongs to the technical field of special repair tools for railway vehicles, can solve the problems that a lower side door shaft pin is difficult to cut in the prior art, the lower side door shaft pin is damaged by a cutting blade of a common angle grinder, the repair time is influenced and the operation time is long when the common angle grinder is used for cutting and the like, and comprises a gasoline cutting saw, a connecting support is arranged at the bottom of the gasoline cutting saw, a supporting connecting rod is arranged at the bottom of the connecting support, a magnetic attraction mechanism is arranged at one end of the supporting connecting rod, and the magnetic attraction mechanism comprises two sets of magnetic attraction bases and magnetic attraction handles connected with the magnetic attraction bases respectively. The efficiency of replacing the lower side door is effectively improved, potential safety hazards are reduced, and train running organizations are guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of railway vehicle repair tools, and in particular relates to a portable door axle pin cutting tool for railway freight cars. Background Art

[0002] The lower side door axle pin is an important component for connecting the lower side doors of railway freight cars. It is crucial to the installation and force of the lower side doors. The normalization and dynamic clearance of damaged vehicle remediation, coupled with the limitations, safety and time of traditional cutting, have seriously affected the efficiency of on-site replacement of the lower side doors and the safety of personnel during the operation. At the same time, too long operation time will affect normal traffic organization.

[0003] There are difficulties in cutting the lower door axle pin on site. There are safety hazards such as being injured by the cutting blade of an ordinary angle grinder, and the use of an ordinary angle grinder for cutting affects the repair time and the operation time is long. Utility Model Content

[0004] The utility model aims to solve the problems of difficulties in cutting the axle pins of the lower side doors, safety hazards of being injured by the cutting blades of ordinary angle grinders, and the time required for repairs and long operation times when cutting with ordinary angle grinders, and provides a portable door axle pin cutting tool for railway freight cars. By using the utility model, the efficiency of replacing the lower side doors can be improved, safety hazards can be reduced, and the organization of train operation can be guaranteed.

[0005] The utility model adopts the following technical solutions:

[0006] A portable door axle pin cutting tool for a railway freight car comprises a gasoline cutting saw, a connecting support is provided at the bottom of the gasoline cutting saw, a supporting rod is provided at the bottom of the connecting support, a magnetic attraction mechanism is provided at one end of the supporting rod, and the magnetic attraction mechanism comprises two groups of magnetic attraction bases and magnetic attraction handles respectively connected to the magnetic attraction bases.

[0007] Furthermore, the connecting support includes two support plates with triangular cross-sections, a connecting plate is provided at the bottom of the support plate, and a support rod is provided at the bottom of the connecting plate.

[0008] Furthermore, a bolt for fixing is provided on one side of the connecting plate, a rotating handle is provided on the outer side of the bolt, and a fixing card for fixing is provided on the other side of the connecting plate.

[0009] Furthermore, a slot is provided at the connecting end of the support link and the connecting support, and the support rod is located in the slot.

[0010] Furthermore, the supporting connecting rod is vertically connected to the magnetic attraction mechanism.

[0011] Furthermore, the gasoline cutting saw comprises a saw blade made of a hard alloy material, and a protective cover with an open end is arranged on the outer side of the saw blade.

[0012] The beneficial effects of the utility model are as follows:

[0013] In view of the difficulties in replacing the lower side doors of current railway vehicles, the potential safety hazards of being injured by cutting blades, low replacement efficiency, the use of ordinary angle grinders that affect the repair time and the long operation time, the utility model effectively improves the efficiency of replacing the lower side doors, reduces safety hazards, and ensures the organization of train operation. The overall design is safe and reasonable, and achieves the advantages of speed, safety, and time saving without affecting the actual function. The overall structure is compact, high in strength, practical and reliable, easy to carry and assemble, and has a long service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 It is a connection diagram of the support, the supporting connecting rod and the magnetic attraction mechanism;

[0016] Among them: 1- gasoline cutting saw; 2- supporting connecting rod; 3- magnetic base; 4- magnetic handle; 5- supporting plate; 6- connecting plate; 7- supporting rod; 8- bolt; 9- rotating handle; 10- fixing card; 11- saw blade; 12- protective cover; 13- handle. DETAILED DESCRIPTION

[0017] The utility model is further described with reference to the accompanying drawings.

[0018] As shown in the figure, a portable door axle pin cutting tool for a railway freight car includes a gasoline cutting saw 1, a connecting support is provided at the bottom of the gasoline cutting saw 1, a supporting rod 2 is provided at the bottom of the connecting support, a magnetic attraction mechanism is provided at one end of the supporting rod 2, and the magnetic attraction mechanism includes two sets of magnetic bases 3 and magnetic handles 4 respectively connected to the magnetic bases 3.

[0019] The magnetic suction mechanism adopts a quick opening and closing form. By turning the magnetic suction handle 4 to the left, the magnetic suction base 3 is opened, so that the magnetic suction base 3 is firmly adsorbed and fixed on the door hinge by magnetic force; by turning the magnetic suction handle 4 to the right, the magnetic suction base 3 is closed, so that the magnetic suction base 3 is separated from the door hinge. The base device composed of two sets of magnetic suction mechanisms has the characteristics of close adsorption and resistance to torsional load, and can quickly and reliably play a fixing role.

[0020] The gasoline cutting saw base part can be connected to the matching part of the magnetic base in a positive, firm and reliable manner, and the gasoline cutting saw base and the magnetic base can be reliably matched through the position of the clip and the locking bolt.

[0021] The connecting support plays a role in preventing the risk of the magnetic attraction mechanism falling. The upper end is connected to the gas and oil cutting saw, and the lower end is connected to the upper end of the supporting connecting rod, so the upper and lower connections are firm and reliable.

[0022] The gasoline cutting saw uses a special carbide cold cutting saw blade. The gasoline cutting saw blade has been analyzed and improved many times to ensure that it achieves the safest, fastest, most labor-saving and most ergonomic size during cutting, and can achieve rapid cutting of door shaft pins.

[0023] The method of using the utility model is as follows:

[0024] Step 1: After the technical inspection finds that the lower side door is not closed properly or is damaged, the lower side door should be replaced on site. First, the door axis pin should be cut;

[0025] Step 2: The operator can turn the magnetic handle to the left to open the magnetic base, so that the magnetic base is firmly adsorbed and fixed on the lower door hinge corresponding to the door axis pin that needs to be cut through magnetic force.

[0026] Step 3: Use the clips and locking bolts to connect the base of the gasoline cutting saw to the matching part of the magnetic base, and align the saw blade of the gasoline cutting saw with the door axis pin that needs to be cut.

[0027] Step 4. After cutting, turn off the gasoline cutting saw and remove it. Move the magnetic handle to the right to eliminate the magnetic force between the magnetic base and the corresponding lower door hinge. Then reconnect it to the matching part of the magnetic base. After cutting the door axis pin, cancel the device and replace the lower door.

Claims

1. A portable door axle pin cutting tool for railway freight cars, characterized in that: The invention comprises a gasoline cutting saw (1), wherein a connecting support is provided at the bottom of the gasoline cutting saw (1), a supporting connecting rod (2) is provided at the bottom of the connecting support, a magnetic attraction mechanism is provided at one end of the supporting connecting rod (2), and the magnetic attraction mechanism comprises two groups of magnetic attraction bases (3) and magnetic attraction handles (4) respectively connected to the magnetic attraction bases (3).

2. The portable door axle pin cutting tool for railway freight cars according to claim 1, characterized in that: The connecting support comprises two support plates (5) with triangular cross-sections, a connecting plate (6) is provided at the bottom of the support plates (5), and a supporting rod (7) is provided at the bottom of the connecting plate (6).

3. The portable door axle pin cutting tool for railway freight cars according to claim 2, characterized in that: A bolt (8) for fixing is provided on one side of the connecting plate (6), a rotating handle (9) is provided on the outer side of the bolt (8), and a fixing clamp (10) for fixing is provided on the other side of the connecting plate (6).

4. The portable door axle pin cutting tool for railway freight cars according to claim 3, characterized in that: A slot is provided at the connection end between the support connecting rod (2) and the connection support, and the support rod (7) is located in the slot.

5. The portable door axle pin cutting tool for railway freight cars according to claim 1, characterized in that: The supporting connecting rod (2) is vertically connected to the magnetic attraction mechanism.

6. The portable door axle pin cutting tool for railway freight cars according to claim 1, characterized in that: The gasoline cutting saw (1) comprises a saw blade (11) made of a hard alloy material, and a protective cover (12) with an open end is provided on the outer side of the saw blade (11).

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