Special bush disassembling and assembling tool for point switch

Abstract

The utility model discloses a special bush dismounting tool for a point switch, which comprises a bolt and a nut which can be matched with each other, and a top sleeve and an auxiliary sleeve are sequentially sleeved on a screw rod between the bolt and the nut; during use, the screw penetrates into the indication rod bushing, the indication rod is arranged between the top sleeve and the auxiliary sleeve, the bolt is rotated to be matched with the nut, and the bushing is ejected out of the indication rod by utilizing the acting force and the counter-acting force between the top sleeve and the auxiliary sleeve to finish dismounting, or the screw penetrates into the connection iron bushing, and the connection iron is arranged between the top sleeve and the nut to finish dismounting. The bolt is rotated to be matched with the nut, the bushing is ejected out of the connecting iron through acting force and counter-acting force between the ejection sleeve and the nut, dismounting is completed, then the screw penetrates into the inner wall of the joint of the indication rod or the connecting iron, and dismounting is completed by rotating the bolt to be matched with the nut. The bushing is jacked into the indication rod or the connecting iron by using the acting force and the counter-acting force between the jacking sleeve and the nut, so that the installation is completed; the service life of parts is prolonged, the working efficiency is improved, and the maintenance cost is reduced.

Description

Technical Field

[0001] The utility model relates to a maintenance tool for a turnout switch machine, in particular to a special bushing disassembly and assembly tool for a turnout machine. Background Art

[0002] As the operating pressure of the subway increases, the interval between trains decreases, and the number of turns of the switch increases, the electric switch and the turnout point rail are rigidly connected. The bushings at the connection are vulnerable parts. The purpose is to protect the rod from wear, reduce the number of replacements of long objects such as rods, and save maintenance costs. In particular, the connection iron between the electric switch and the external locking device; the connection between the locking rod and the indicating rod in the machine and the indicating connecting rod of the installation device; the bushings in the above parts are often worn. Since the bushing is difficult to replace, the replacement process requires the use of a hammer and a punch to remove the inner bushing by hitting. On the other hand, for different bushing installation positions, when the bushing is removed on site, the rod is suspended and there is no fulcrum. The rod needs to be removed, and the bushing needs to be taken out and then installed. The workload is large and time-consuming. Replacement by brute force is likely to cause impact damage to the rod, causing the rod to deform and affecting the change of the notch, which will lead to the switch machine's card slot being out of alignment. Secondly, it consumes a lot of staff's physical strength and wastes time, affecting the efficiency and progress of normal work and causing certain inconveniences to normal maintenance. Summary of the invention

[0003] In order to overcome the shortcomings of the above-mentioned prior art, the purpose of the utility model is to provide a special bushing disassembly and assembly tool for a switch machine, comprising bolts and nuts that adapt to each other, and a top sleeve and an auxiliary sleeve are sequentially sleeved on the screw rod between the bolt and the nut. The bushing is disassembled and assembled by the action and reaction force between the top sleeve and the auxiliary sleeve or the nut, which has the characteristics of improving component life and work efficiency and reducing maintenance costs.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] The utility model discloses a special bushing disassembly and assembly tool for switch machine, comprising a bolt 1 and a nut 2 which can be adapted to each other, and a top sleeve 3 and an auxiliary sleeve 4 are sequentially sleeved on the screw rod between the bolt 1 and the nut 2.

[0006] The utility model discloses a special bushing disassembling and assembling tool for a switch machine, comprising a bolt 1 and a nut 2 which can be adapted to each other, and a top sleeve 3 is sleeved on the screw rod between the bolt 1 and the nut 2.

[0007] The outer diameters of the bolt head of the bolt 1 and the nut 2 are larger than the inner diameters of the top sleeve 3 and the auxiliary sleeve 4 .

[0008] The outer diameter of the top sleeve 3 is smaller than the outer diameter of the switch machine bushing 7 , and larger than the inner diameter of the switch machine bushing 7 .

[0009] The inner diameter of the auxiliary sleeve 4 is larger than the outer diameter of the switch machine bushing 7 .

[0010] A plurality of first washers 5 and a plurality of second washers 6 are arranged on the screw rod between the bolt 1 and the nut 2 . The first washers 5 are closely attached to the bolt head of the bolt 1 , and the second washers 6 are closely attached to the nut 2 .

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] 1. The utility model adopts a bolt 1, a nut 2 and a top sleeve 3 to cooperate with each other. The bolt 1 is rotated to cooperate with the nut 2, and the top sleeve 3 is used to complete the installation or removal of the switch machine bushing 7, thereby avoiding the damage to the switch machine components by the existing cushion impact method, and has no special requirements for the construction environment. At the same time, it reduces the labor cost and the time cost of maintenance, and improves the work efficiency.

[0013] 2. The utility model adopts the first gasket 5 and the second gasket 6 to increase the area of ​​the bolt head and the nut 2 of the bolt 1, so that the contact force when the bolt head or the nut 2 of the bolt 1 contacts with the top sleeve 3 or the auxiliary sleeve 4 is increased to prevent slipping, and at the same time reduce the wear on the top sleeve 3, the auxiliary sleeve 4 or the switch machine parts, thereby improving the life of the bushing removal tool or the switch machine parts described in the utility model.

[0014] In summary, the utility model adopts the bolt 1 and the nut 2 to cooperate with each other, and is configured with a first gasket 5 and a second gasket 6, so as to remove or install the switch machine bushing 7 in a rotating manner, thereby reducing labor costs and maintenance time costs, improving work efficiency, reducing damage to components, and increasing component life. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic structural diagram of the utility model when the bushing 7 in the rod 8 is disassembled.

[0016] Figure 2 It is a structural schematic diagram of the utility model when disassembling the bushing 7 in the connecting iron 9 and installing the bushing 7.

[0017] Figure 3 The utility model is a schematic diagram showing the removal of the rod bushing of the switch machine.

[0018] Figure 4 The utility model is a schematic diagram showing a rod bushing for installing a switch machine.

[0019] Figure 5 The utility model is a schematic diagram of removing the connecting iron bushing of the switch machine.

[0020] Figure 6 The utility model is a schematic diagram of the connecting iron bushing for installing the switch machine.

[0021] In the figure, 1. bolt; 2. nut; 3. top sleeve; 4. auxiliary sleeve; 5. first gasket; 6. second gasket; 7. bushing; 8. indicating rod; 9. connecting iron. DETAILED DESCRIPTION

[0022] The structural principle and working principle of the utility model are described in detail below in conjunction with the accompanying drawings.

[0023] See also Figure 1 The utility model discloses a special bushing disassembly and assembly tool for a switch machine, comprising a bolt 1 and a nut 2 which can be adapted to each other, and a top sleeve 3 and an auxiliary sleeve 4 are sequentially sleeved on the screw rod between the bolt 1 and the nut 2.

[0024] See also Figure 2 The utility model discloses a special bushing disassembly and assembly tool for switch machine, comprising a bolt 1 and a nut 2 which can be adapted to each other, and a top sleeve 3 is sleeved on the screw rod between the bolt 1 and the nut 2.

[0025] The outer diameters of the bolt head of the bolt 1 and the nut 2 are larger than the inner diameters of the top sleeve 3 and the auxiliary sleeve 4 .

[0026] The outer diameter of the top sleeve 3 is smaller than the outer diameter of the switch machine bushing 7 , and larger than the inner diameter of the switch machine bushing 7 .

[0027] The inner diameter of the auxiliary sleeve 4 is larger than the outer diameter of the switch machine bushing 7 .

[0028] A plurality of first washers 5 and a plurality of second washers 6 are arranged on the screw rod between the bolt 1 and the nut 2 . The first washers 5 are closely attached to the bolt head of the bolt 1 , and the second washers 6 are closely attached to the nut 2 .

[0029] The working principle of the utility model is:

[0030] When the switch machine needs to replace the bushing 7 in the indicating rod 8:

[0031] See also Figure 3 , first remove the old bushing 7 in the indicating rod 8:

[0032] When removing the old bushing 7 in the indicating rod 8, the top sleeve 3 and the auxiliary sleeve 4 are needed at the same time. The first gasket 5 and the top sleeve 3 are sequentially put on the screw rod of the bolt 1, and then the screw rod of the bolt 1 passes through the old bushing 7 in the indicating rod 8. Then the auxiliary sleeve 4 and the second gasket 6 are sequentially put on the screw rod of the bolt 1 that passes through the old bushing 7 of the indicating rod 8, and the nut 2 is screwed in at the same time. The bolt 1 is continuously rotated until the old bushing of the indicating rod 8 is completely pushed out of the inner cavity of the connecting part of the indicating rod 8 by the top sleeve 3 and falls into the auxiliary sleeve 4. Finally, the bolt 1 is rotated in the opposite direction to screw out the nut 2.

[0033] See also Figure 4 , and then install the new bushing 7 into the indicating rod 8:

[0034] Put the first gasket 5, the top sleeve 3 and the new bushing 7 on the screw rod of the bolt 1 in sequence, and pass the screw rod of the bolt 1 through the inner cavity of the connection of the indicating rod 8, then put the second gasket 6 on the screw rod of the bolt 1 that passes through the inner cavity of the indicating rod 8, screw in the nut 2 at the same time, and continue to rotate the bolt 1 until the new bushing 7 of the indicating rod 8 is completely pushed into the inner cavity of the connection of the indicating rod 8 by the top sleeve 3, and finally rotate the bolt 1 in the opposite direction to screw out the nut 2;

[0035] When the switch machine needs to replace the bushing 7 in the connecting iron 9:

[0036] See also Figure 5 , first remove the old bushing 7 in the connecting iron 9:

[0037] Put the first gasket 5 and the top sleeve 3 on the screw rod of the bolt 1 in sequence, then pass the screw rod of the bolt 1 through the old bushing 7 in the connecting iron 9, and then put the second gasket 6 on the screw rod of the bolt 1 that has passed through the old bushing 7 in the connecting iron 9, and screw in the nut 2 at the same time, and continue to rotate the bolt 1 until the old bushing 7 in the connecting iron 9 is completely pushed out of the inner cavity of the connecting iron 9 by the top sleeve 3, and finally rotate the bolt 1 in the opposite direction to screw out the nut 2;

[0038] See also Figure 6 , and then install the new bushing 7 into the connecting iron 9:

[0039] Put the first gasket 5, the top sleeve 3 and the new bushing 7 on the screw rod of the bolt 1 in sequence, and pass the screw rod of the bolt 1 through the inner cavity of the connection of the connecting iron 9, then put the second gasket 6 on the screw rod of the bolt 1 that passes through the inner cavity of the connecting iron 9, screw in the nut 2 at the same time, and continue to rotate the bolt 1 until the new bushing is completely pushed into the inner cavity of the connection of the connecting iron 9 by the top sleeve 3, and finally rotate the bolt 1 in the opposite direction to screw out the nut 2.

[0040] Example

[0041] Taking the ZDJ9 switch machine special bushing disassembly and assembly tool as an example, it includes a 22mm bolt 1 and a 22mm nut 2 that can adapt to each other, and a first gasket 5, a top sleeve 3 with an outer diameter of 21mm and an inner diameter of 12mm, an auxiliary sleeve 4 with an outer diameter of 26mm and an inner diameter of 21mm, and a second gasket 6 are sequentially sleeved on the screw rod between the bolt 1 and the nut 2; or a first gasket 5, a top sleeve 3 with an outer diameter of 21mm and an inner diameter of 12mm, and a second gasket 6 are sequentially sleeved on the screw rod between the bolt 1 and the nut 2.

[0042] The outer diameter of the ZDJ9 switch machine bushing is 20 mm and the inner diameter is 16 mm.

Claims

1. A bushing disassembly and assembly tool for a switch machine, comprising a bolt (1) and a nut (2) that can be adapted to each other, characterized in that: A top sleeve (3) and an auxiliary sleeve (4) are sequentially sleeved on the screw rod between the bolt (1) and the nut (2); The outer diameters of the bolt head and the nut (2) of the bolt (1) are larger than the inner diameters of the top sleeve (3) and the auxiliary sleeve (4); The outer diameter of the top sleeve (3) is smaller than the outer diameter of the switch machine bushing (7), and larger than the inner diameter of the switch machine bushing (7); The inner diameter of the auxiliary sleeve (4) is larger than the outer diameter of the switch machine bushing (7); A plurality of first washers (5) and a plurality of second washers (6) are arranged on the screw rod between the bolt (1) and the nut (2); the first washers (5) are closely attached to the bolt head of the bolt (1), and the second washers (6) are closely attached to the nut (2).

2. A bushing disassembly and assembly tool for a switch machine, comprising a bolt (1) and a nut (2) that can be adapted to each other, characterized in that: A top sleeve (3) is sleeved on the screw rod between the bolt (1) and the nut (2); The outer diameter of the bolt head of the bolt (1) is greater than the inner diameter of the top sleeve (3); The outer diameter of the top sleeve (3) is smaller than the outer diameter of the switch machine bushing (7), and larger than the inner diameter of the switch machine bushing (7); A plurality of first washers (5) and a plurality of second washers (6) are arranged on the screw rod between the bolt (1) and the nut (2); the first washers (5) are closely attached to the bolt head of the bolt (1), and the second washers (6) are closely attached to the nut (2).

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