Technical realization elements of special tools for railway brake valve assembly

Technical realization elements:

3. The purpose of this utility model is to provide a special tool for assembling railway brake valves with simple structure and reliable use, so as to solve the problem that the existing railway brake valve is easy to install the sandwich valve in reverse. For the same railway brake valve The assembly of the two sandwich valves is completed at the same time, which is convenient and fast, and significantly improves the assembly efficiency.

4. The technical scheme of the utility model is:

5. A special tool for assembling railway brake valves, the technical points of which are: a valve cylinder arranged vertically and a mandrel matched with the valve cylinder. The valve cylinder is a cylinder and the inner wall of the cylinder is provided with a clamp The groove on the outer edge of the core valve, the number of valve barrels is two, and the top ends of the two valve barrels are jointly connected to a support seat, and the top surface of the support seat is provided with two ports corresponding to the centers of the two valve barrels. The number of the ejector rods is two, and the lower end of the ejector rod is inserted into the corresponding valve cylinder through the through hole. The upper ends of the two ejector rods are provided with a connecting plate. The lengths of the two valve cylinders are different, one is long and the other is short. The lengths of the two ejector rods are different, and the ejector rod extending into the longer-length valve barrel is longer than the other ejector rod.

6. The above-mentioned special tool for railway brake valve assembly, the maximum capacity of the two valve cylinders is 10 sandwich valves arranged vertically.

7. In the above-mentioned special tool for assembling a railway brake valve, the lower end of the ejector rod is provided with a disc matched with the inner wall of the valve barrel to increase the contact area with the sandwich valve.

8. The above-mentioned special tool for railway brake valve assembly, the two sides of the connecting plate are connected with two vertical support rods by bolt pairs, the upper section of the vertical support rod is a screw rod, and the lower end of the vertical support rod is provided with a circular shape Support piece.

9. In the above-mentioned special tool for assembling a railway brake valve, a lifting ring is provided on the outer edge of the upper surface of the support seat to facilitate the lifting of the valve barrel.

10. In the above-mentioned special tool for railway brake valve assembly, one of the ejector rods is provided with a scale line from bottom to top, so that the staff can refer to the position of the end of the ejector rod in the valve barrel, and refer to the push-out sandwich valve. quantity.

11. In the above-mentioned special tool for railway brake valve assembly, a transition mark block is provided at the upper end of one of the ejector rods and the connecting plate to facilitate the staff to distinguish the positions where the two valve cylinders are inserted into the brake valve.

12. The beneficial effects of this utility model are:

13.1. Using the relative movement of the ejector rod and the valve barrel, push the sandwich valve pre-filled in the valve barrel to the corresponding position of the brake valve, and complete the installation of two sandwich valves at a time, which significantly improves the assembly efficiency.

14.2 The inner wall of the valve barrel is provided with a groove that matches the outer edge of the sandwich valve to facilitate clamping the rubber outer circle of the sandwich valve and ensure that the angles of the sandwich valves pre-filled in the same valve barrel are consistent.

15.3. Adopting a double-cylinder structure, the length of the valve cylinder is different, and the position of the sandwich valve in the brake valve is different, which is convenient to distinguish.

16.4. Fill the valve barrel with each sandwich valve in advance, then insert the valve barrel into the brake valve, use the relative movement of the ejector rod and the valve barrel to eject the sandwich valve, pre-fill multiple sandwich valves into the valve barrel, It greatly reduces the chance of the upper and lower surfaces of the sandwich valve being reversed, thereby improving the assembly efficiency.

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