A special extractor device for tank gun trunnion

Abstract

The utility model discloses a special extractor device for tank gun trunnion, including flange assembly, screw nut assembly and standard fastener. The flange assembly is composed of flange, one -way thrust bearing, steel wire baffle, and the flange is fixed on the artillery frame through standard fastener, is used for bearing screw nut assembly, and one -way thrust bearing is installed in the central position of flange and is positioned by steel wire baffle, the screw nut assembly contains screw rod, nut, sleeve head, and the one end of screw rod is linked with tank gun trunnion thread, and the nut is cooperated with screw rod thread, and the sleeve head is assembled in the outside of nut. Through rotating sleeve head and driving the nut rotation, can drive screw rod and move outward, and tank gun trunnion is smoothly pulled out. The utility model adds one -way thrust bearing and reduces friction loss, and the screw rod adopts stainless steel 0Cr19Ni10NbN, and the nut adopts aluminium brass 25-6-3-3 material, is corrosion -resistant, and has good wear resistance, is especially used in the dismounting operation of trunnion in the maintenance process of tank artillery, and the dismounting efficiency is high, safe and reliable.

Description

Technical Field

[0001] This utility model relates to a special mechanical puller, specifically a special puller device for tank gun trunnions. Background Technology

[0002] During the repair of a certain type of tank cannon, the factory needed to design a lightweight and practical trunnion puller device so that the operator could easily disassemble the trunnion components.

[0003] Existing tooling and trunnion removal devices have poor versatility and cannot be adapted to the disassembly conditions of the trunnion of this type of tank gun. This utility model is a special tooling for removing trunnions during the repair of a certain type of tank gun. It is suitable for tank gun barrel replacement and trunnion replacement operations, which can improve production efficiency and eliminate maintenance safety hazards. Summary of the Invention

[0004] The main objective of this invention is to provide a special puller device for tank gun trunnions. The device consists of a flange assembly and a lead screw and nut assembly. The flange assembly supports the lead screw and nut assembly and includes a flange, a one-way thrust bearing, and a wire retaining ring. The lead screw and nut assembly includes a lead screw, a nut, and a sleeve head. This invention optimizes the structure, materials, and processes by adding a one-way thrust bearing, selecting high-quality metal raw materials, and using a heat treatment process. During disassembly and assembly, it can stably output top thrust force and quickly complete the disassembly of the tank gun trunnion. The lead screw is made of stainless steel to improve corrosion resistance.

[0005] This utility model provides a special puller device for tank gun trunnions, including: a flange assembly, a screw and nut assembly and standard fasteners. The flange assembly is mainly composed of a one-way thrust bearing, a wire retaining ring and a flange. The screw and nut assembly passes through the center of the flange assembly and is connected to the trunnion. The other end of the screw and nut is connected to a sleeve head. Rotating the sleeve head can realize the pull-out operation of the tank gun trunnion.

[0006] This utility model of a special puller for tank gun trunnions is manufactured using high-quality raw materials after stress analysis and calculation. The overall stress safety factor of the device is not less than 3 times.

[0007] The present invention provides a special extraction device for tank gun trunnions, which has the following advantages: Compared with the prior art, the present invention adds a one-way thrust bearing, reduces frictional resistance, and increases the proportion of useful work and the service life of the tooling.

[0008] Compared with existing technologies, this utility model of a special puller for tank gun trunnions changes the material of the original steel nut to aluminum brass 25-6-3-3, reducing sliding friction; and changes the material of the original lead screw to stainless steel 0Cr19Ni10NbN, effectively improving corrosion resistance. Attached Figure Description

[0009] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0010] Figure 1 is a cross-sectional view of the working process of the special puller for tank gun trunnions of this utility model; Figure 2 is a structural cross-sectional schematic diagram of the special puller for tank gun trunnions of this utility model; Figure 3 is a schematic diagram of the screw and nut structure of the special puller for tank gun trunnions of this utility model.

[0011] In the picture: 1. Flange; 2. Thrust bearing; 3. Wire retaining ring; 4. Lead screw; 5. Nut; 6. Sleeve head; 7. Standard fasteners. Detailed Implementation

[0012] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Many specific details are set forth in the following description to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0013] As shown in Figures 1, 2, and 3, this embodiment provides a special extraction device for tank gun trunnions, including a flange 1, a thrust bearing 2, a wire retaining ring 3, a lead screw 4, a nut 5, a sleeve head 6, and standard fasteners 7. The flange 1 is made of high-strength alloy structural steel, precision machined, and surface-oxidized for rust prevention. During operation, it is fixed to the gun frame (the mounting base for the disassembled part) using standard fasteners 7. The thrust bearing 2 is positioned at the center hole of the flange 1, and the wire retaining ring 3 is located on the outside of the thrust bearing 2 for limiting its movement. One end of the lead screw 4 is threaded to the trunnion to be disassembled. The trapezoidal thread inside the nut 5 engages with the trapezoidal thread at the other end of the lead screw 4. The sleeve head 6 is fitted onto the outer rear end of the nut 5. By rotating the sleeve head, the nut is moved, and the flange's support structure pushes the trunnion out for disassembly.

[0014] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the protection scope of the present invention.

[0015] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable way without contradiction. In order to avoid unnecessary repetition, this utility model will not describe the various possible combinations separately.

[0016] Furthermore, various different embodiments of this utility model can be combined in any way, as long as they do not violate the spirit of this utility model, they should also be regarded as the content disclosed by this utility model.

[0017] Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

Claims

1. A special puller device for tank gun trunnions, characterized in that, It includes a flange assembly and a lead screw and nut assembly; the flange assembly is used to support and install the lead screw and nut assembly, and the whole set of equipment works together to complete the disassembly of the tank gun trunnion; the flange assembly includes a flange, a one-way thrust bearing, and a wire retaining ring; the lead screw and nut assembly includes a lead screw, a nut, and a sleeve head.

2. The tank gun trunnion extraction device according to claim 1, characterized in that: The flange is fixedly mounted on the gun frame; the one-way thrust bearing is installed inside the central ring of the flange; the wire retaining ring is mounted on the central ring of the flange to prevent the one-way thrust bearing from axially dislodging.

3. The tank gun trunnion extraction device according to claim 1, characterized in that: The lead screw is made of stainless steel 0Cr19Ni10NbN, and one end of the lead screw can be threaded to the trunnion of the tank gun; the nut is made of aluminum brass 25-6-3-3, and the nut has a threaded hole inside that matches the thread of the lead screw; the sleeve head can be sleeved on the outside of the nut to drive the nut to rotate.

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