Placing disc for heat treatment of drilling tools

Abstract

The utility model belongs to the technical field of drilling tool production and application, and particularly relates to a placing tray for drilling tool heat treatment. Comprising a disc-shaped placing disc body and placing holes formed in the placing disc, the placing holes vertically penetrate through the placing disc, the placing holes are evenly distributed in the placing disc body, lifting lugs are further arranged on the placing disc body, and the lifting lugs are arranged close to the edge of the placing disc body. According to the placing disc for heat treatment of the drilling tools, a traditional frame type placing frame is changed into the placing disc, the original horizontally-placed drilling tools are changed into vertically-placed drilling tools, the placing amount is increased, meanwhile, the placing disc is prevented from entering molten salt, and therefore the material requirement of the placing disc is reduced, and meanwhile the placing disc is convenient to use. The device is simple in structure, convenient to process and suitable for large-scale popularization and application.

Description

Technical Field

[0001] The utility model belongs to the technical field of production and application of brazing tools, in particular to a placing plate for heat treatment of brazing tools. Background Art

[0002] Drilling tools are tools used to drill holes in rocks, which are a general term for connecting rod drill tails, drill rods, connecting sleeves, drill bits, integral drills, etc. In existing designs, rock drilling tools have a very small cross-sectional area due to the limitation of the hollowing diameter in drilling and blasting projects. However, this slender rod must withstand the cyclic stresses of tension, compression, bending, and torsion imposed by high-frequency, high-impact rock drills under the conditions of severe wear and corrosive media. To this end, the drilling tool must have sufficiently high fatigue strength, appropriate plasticity, and good toughness.

[0003] Therefore, the existing brazing tools need to be heat treated after processing. The existing heat treatment method is mainly to first pass the brazing tools through a carburizing furnace for heat treatment, and then pass through a salt bath furnace for isothermal quenching. In order to facilitate the overall transportation of the brazing tools, in the existing design, a frame-type brazing tool rack is generally provided to place the brazing tools. Although this structure can achieve heat treatment of the brazing tools, it is limited by the size of the salt bath furnace, which limits the placement of the brazing tools. In addition, the salt bath heat treatment requires the workpiece to be immersed in molten salt. Therefore, the quality of the brazing tool rack is also very high, which increases the production cost. Utility Model Content

[0004] The utility model aims at the technical problem existing in placing the brazing tools during heat treatment and provides a brazing tool heat treatment placing plate which has reasonable design, simple structure, convenient processing and can place more brazing tools.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is as follows: the utility model provides a placement plate for heat treatment of brazing tools, including a placement plate body arranged in a disc shape and a placement hole arranged on the placement plate body, the placement hole is arranged to pass through the placement plate body up and down, the placement holes are evenly distributed on the placement plate body, and the placement plate body is also provided with a lifting ear, and the lifting ear is arranged close to the edge of the placement plate body.

[0006] Preferably, a suspension rod is further provided in the placement hole, and the suspension rod comprises a fixing plate arranged at the top of the placement hole and a connecting column arranged below the fixing plate, and a steel bar hook is provided at one end of the connecting column away from the fixing plate.

[0007] Preferably, the placement hole is a countersunk hole.

[0008] Preferably, a hook is hung on the lifting ear, a connecting rope is provided on the hook, an end of the connecting rope away from the hook is connected to a turntable, a middle part of the turntable is rotatably connected to a fixed column, and a lifting ring is provided on the top of the fixed column.

[0009] Compared with the prior art, the advantages and positive effects of the utility model are:

[0010] 1. The utility model provides a placement tray for heat treatment of brazing tools. By changing the traditional frame-type placement rack into a placement tray, the original horizontal brazing tools are changed to vertical placement, which increases the placement capacity while avoiding the placement tray from entering the molten salt, thereby reducing the material requirements of the placement tray. At the same time, the utility model has a simple structure, is easy to process, and is suitable for large-scale promotion and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the following is a brief introduction to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor.

[0012] Figure 1 A schematic diagram of the structure of a tray for placing a brazing tool for heat treatment provided in Example 1;

[0013] Figure 2 A schematic diagram of the structure of the suspension rod provided in Example 1;

[0014] In the above figures, 1. the placing plate body; 11. the placing hole; 12. the lifting ear; 2. the hanging rod; 21. the fixing plate; 22. the connecting column; 23. the steel bar hook; 3. the hook; 4. the connecting rope; 5. the rotating plate; 6. the fixing column; 7. the lifting ring. DETAILED DESCRIPTION

[0015] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0016] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0017] Embodiment 1, as Figure 1 , Figure 2As shown, the present embodiment aims to provide a placement rack for convenient transportation of brazing tools and reduction of production costs. To this end, the placement plate for heat treatment of brazing tools provided in the present embodiment comprises a placement plate body 1 arranged in a disc shape and a placement hole 11 arranged on the placement plate. The traditional frame-type placement rack is changed into a disc-type structure, mainly considering that the brazing tools are mostly arranged in a rod shape, and when the salt bath furnace itself adopts an underground salt bath furnace, its inlet is small. In this case, it is better to place it vertically than to place it horizontally. Therefore, in the present embodiment, a disc-shaped structure is adopted.

[0018] At the same time, considering that the placement plate is not allowed to enter the salt bath furnace, the best way is to lift the brazing tool and connect it with a steel rope. For this purpose, a placement hole 11 is provided on the placement plate. In this way, one end of the steel rope is fixed to the end of the brazing tool, and the other end is connected to the placement hole 11. In this way, the entire placement plate does not enter the salt bath furnace, so the material requirements are low.

[0019] In order to facilitate the connection of the steel wire rope, in the present embodiment, the placement holes 11 are arranged to pass through the placement plate from top to bottom. Meanwhile, the placement holes 11 are evenly distributed on the placement plate body 1, thus providing more placement positions.

[0020] Since the heat treatment of the brazing tool is transferred from the carburizing furnace to the salt bath furnace for isothermal quenching, and the method of moving in the factory is basically a gantry, therefore, in order to facilitate the lifting of the gantry, a lifting lug 12 is also provided on the placing plate body 1, and the lifting lug 12 is arranged close to the edge of the placing plate body 1. In this embodiment, two symmetrically arranged lifting lugs 12 are provided.

[0021] Considering that the shank itself is provided with a hole, in order to facilitate the rapid placement of the shank, in this embodiment, a suspension rod 2 is further provided in the placement hole 11, and the suspension rod 2 includes a fixing plate 21 provided at the top of the placement hole 11 and a connecting column 22 provided below the fixing plate 21, and a steel bar hook 23 is provided at one end of the connecting column 22 away from the fixing plate 21. In this way, the shank can be directly hung on the steel bar structure, and the fixing plate 21 ensures that the entire suspension rod 2 will not fall off the placement plate body 1.

[0022] In order to limit the movement of the suspension rod 2, in the present embodiment, the placement hole 11 is a countersunk hole. In this way, the top surface of the fixed plate 21 is kept horizontal with the top surface of the placement plate, and the fixed plate 21 is in the countersunk hole.

[0023] Considering that if the brazing tool can rotate in the salt bath furnace, its heat treatment will be more uniform, thereby improving the heat treatment effect, and although the steel wire rope of the gantry car can rotate a certain angle, it cannot keep rotating all the time. For this reason, in this embodiment, a hook 3 is hung on the lifting lug 12, and a connecting rope 4 is arranged on the hook 3. The end of the connecting rope 4 away from the hook 3 is connected to a turntable 5, and the middle of the turntable 5 is rotatably connected to a fixed column 6. A bearing is arranged between the fixed column 6 and the turntable 5, and the fixed column 6 is sleeved in the bearing. A lifting ring 7 is arranged on the top of the fixed column 6. The electric hoist of the gantry car is connected by the lifting ring 7, so that the slow rotation of the placement plate can be realized under manual push. Of course, its structure is limited to the use of an underground salt bath furnace.

[0024] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A tray for heat treatment of brazing tools, characterized in that: It includes a placement plate body arranged in a disc shape and a placement hole arranged on the placement plate body. The placement hole passes through the placement plate body up and down and is evenly distributed on the placement plate body. The placement plate body is also provided with a lifting ear, which is arranged close to the edge of the placement plate body.

2. The tray for heat treatment of brazing tools according to claim 1, characterized in that: A suspension rod is also arranged in the placement hole, and the suspension rod comprises a fixing plate arranged at the top of the placement hole and a connecting column arranged below the fixing plate, and a steel bar hook is arranged at one end of the connecting column away from the fixing plate.

3. The tray for heat treatment of brazing tools according to claim 2, characterized in that: The placement hole is a countersunk hole.

4. The tray for heat treatment of brazing tools according to claim 1, characterized in that: A hook is hung on the lifting ear, a connecting rope is arranged on the hook, an end of the connecting rope away from the hook is connected to a turntable, a middle part of the turntable is rotatably connected to a fixing column, and a lifting ring is arranged on the top of the fixing column.

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