Protective device for guaranteeing normal start of railway point switch

Abstract

The utility model discloses a protective device for guaranteeing the normal start of a railway switch machine, which comprises a turnout pull rod and a turnout trunk iron, the turnout trunk iron is sleeved on the outer side of an actuating rod, baffle ring pieces are further sleeved on two sides of the turnout trunk iron and positioned on two sides of the actuating rod, and a travel space is formed between the baffle ring pieces and the turnout trunk iron; the device further comprises two sets of sleeves, the two sets of sleeves are transversely spliced to form a cavity, and the baffle ring piece and the moving room can be contained in the cavity. The two sets of sleeves are arranged, transverse splicing can be achieved through the two sets of sleeves, the cavity formed by splicing can cover the baffle ring piece and the travel room to achieve the protection effect, the transverse splicing can enable the splicing position to be just away from the travel room, and the problem that market products cannot be suitable for the special environment of mining area railways is solved; and in combination with the special appearance design of the travel part, the action of the switch machine is not influenced, a good protection effect is achieved, the failure rate is greatly reduced, the maintenance mode is simplified, and the operation efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of railway electrical engineering, in particular to a protective device for ensuring the normal start-up of a railway switch machine. Background Art

[0002] The switch machine is a key device to ensure the normal switching of railway locomotives. It is mainly achieved by the motor inside the switch machine driving the rod attached to the point rail to make a reciprocating horizontal movement. Before the motor rotates at high speed, a 5mm buffer stroke is required to ensure that the point rail and the base rail are unlocked. This stroke is called "the gap". The position of the gap is very complicated. There is a 5mm gap on each side of the "6"-shaped trunk iron. In order to ensure that this gap is not entered by coal powder, ice, rain, snow, etc., so as to ensure the normal start of the motor, it must be protected.

[0003] In order to protect this area, the National Railway Administration uses fixed protective covers to cover a large area, but the installation of fixed protective covers requires that the entire roadbed must remain stable and unchanged. However, the railway transportation environment in the mining area is poor and the roadbed changes greatly, so the method of installing fixed protective covers is obviously not suitable.

[0004] In order to protect the swing, traditional railway companies also use the method of covering points with a surface. They use 1.5*1m straw mats to wrap the external rods where the swing is located as a whole. The wrapped straw mats move back and forth with the pointed rails, solving the problem of not being able to install a fixed protective cover. However, this protection method not only causes the repeated bundling and removal of straw mats during maintenance work, which is very inconvenient, but also expands the scope of protection and does not utilize the inspection of the equipment appearance. In addition, straw mats cannot be reused, and improper disposal after a large number of applications will also cause environmental problems.

[0005] Therefore, the existing technology currently has the following shortcomings: the existing fixed protection products cannot be applied in equipment-using units; the use of straw mats for wrapping not only makes the maintenance work complicated and inefficient, but also expands the protection scope, which is not conducive to the inspection of the equipment appearance. Utility Model Content

[0006] The technical problem to be solved by the utility model is: how to solve the problem of low efficiency of protection operation in traditional swimming room protection.

[0007] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0008] A protective device for ensuring the normal start of a railway switch machine comprises a turnout pull rod and a turnout trunk iron installed on the turnout pull rod, wherein the turnout trunk iron is sleeved on the outside of an operating rod, and retaining rings are sleeved on both sides of the turnout trunk iron and located on both sides of the operating rod, wherein a clearance is formed between the retaining ring and the turnout trunk iron;

[0009] It also includes two groups of sleeves, which are transversely spliced ​​to form a cavity, and the retaining ring and the swimming spacer can be accommodated in the cavity.

[0010] The present application sets two sets of sleeves, which can be horizontally spliced. The cavity formed by the splicing can cover the retaining ring and the swing and play a protective role. The horizontal splicing can make the splicing position just far away from the swing, which solves the problem that the market products cannot be applied to the special environment of the mining railway. Combined with the special appearance design of the swing part, it does not affect the operation of the switch machine and achieves a good protection effect, greatly reducing the failure rate, simplifying the maintenance method, and improving the working efficiency. At the same time, the appearance of the protective device is symmetrical on the left and right, which is conducive to mass production. In addition, the protective device can be reused to save costs.

[0011] As a further solution of the utility model: a horizontal groove is provided at one end of the sleeve, and when two sleeves are spliced ​​together, the groove body formed by the two grooves just accommodates the turnout trunk iron.

[0012] As a further solution of the utility model: a connecting frame is provided at the end of the sleeve facing the slot, and a plurality of positioning holes are equidistantly provided on the connecting frame.

[0013] As a further solution of the utility model: when two groups of the sleeves are spliced ​​together, the two groups of positioning holes correspond to each other, and the two are locked by using a wire tie.

[0014] As a further solution of the utility model: the sleeve is cylindrical and hollow inside, and both ends are open.

[0015] As a further solution of the utility model: the turnout trunk iron includes a horizontally arranged upper positioning part and a lower positioning part in a "6"-shaped structure, wherein the upper positioning part is connected to the turnout pull rod through a mounting piece, and the lower positioning part wraps around the actuating rod.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] First, the present application sets two sets of sleeves, which can be horizontally spliced. The cavity formed by the splicing can cover the retaining ring and the swing and play a protective role. The horizontal splicing can make the splicing position just far away from the swing, which solves the problem that the market products cannot be applied to the special environment of the mining railway. Combined with the special appearance design of the swing part, it does not affect the movement of the switch machine and achieves a good protection effect, greatly reduces the failure rate, simplifies the maintenance method, and improves the working efficiency. At the same time, the appearance of the protective device is symmetrical on the left and right, which is conducive to mass production. In addition, the protective device can be reused to save costs, and the present application is attached to the rod, and there is no need to consider the change of the roadbed.

[0018] Secondly, the protection method of this application is different from other products on the market and is more suitable for harsh environments; it has good protection effect and is simple and practical to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of a protective device for ensuring the normal start-up of a railway switch machine according to an embodiment of the utility model;

[0020] Figure 2 This is a schematic diagram of the structure of two sets of sleeves after being spliced ​​together in an embodiment of the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the sleeve of an embodiment of the utility model;

[0022] Figure 4 This is a schematic diagram of the embodiment of the utility model when the sleeve is not installed;

[0023] Figure 5 This is a schematic diagram of the structure of the turnout trunk iron of the utility model embodiment;

[0024] Description of reference numerals:

[0025] 1. Sleeve; 11. Card slot; 12. Connecting frame; 121. Positioning hole;

[0026] 2. Turnout pull rod;

[0027] 3. Turnout trunk iron; 31. Mounting piece; 32. Upper positioning part; 33. Lower positioning part;

[0028] 4. Action rod;

[0029] 5. Retaining ring;

[0030] 6. Travel time. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution in the embodiments of the utility model will be clearly and completely described below in combination with the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] Reference Figure 1 and Figure 4A protective device for ensuring the normal start-up of a railway switch includes a sleeve 1, a switch pull rod 2, a switch trunk iron 3, an operating rod 4, a retaining ring 5 and a free space 6, wherein the switch trunk iron 3 is installed on the switch pull rod 2, the switch trunk iron 3 is sleeved on the outside of the operating rod 4, and retaining rings 5 ​​are sleeved on both sides of the switch trunk iron 3 and located on both sides of the operating rod 4, wherein a free space 6 of about 5 mm is formed between the retaining ring 5 and the switch trunk iron 3.

[0033] Reference Figure 1 , Figure 2 and Figure 3 Two groups of sleeves 1 are provided, and the two groups of sleeves 1 can be horizontally spliced. The cavity formed by the splicing can accommodate the retaining ring 5 and the free space 6, as well as part of the structure of the turnout trunk iron 3, to play a protective role; the sleeve 1 is cylindrical and hollow inside, and both ends are open.

[0034] Furthermore, a horizontal slot 11 is provided at one end of the sleeve 1, and when the two sleeves 1 are spliced, the slot body formed by the two slots 11 just clamps the turnout trunk iron 3, thereby limiting the turnout trunk iron 3; a connecting frame 12 is provided at the end of the sleeve 1 facing the slot 11, and a number of positioning holes 121 are equidistantly provided on the connecting frame 12. When the two groups of sleeves 1 are spliced, the two groups of positioning holes 121 correspond to each other, and the two are locked with wire, which plays a role in preliminary positioning. After the initial positioning, the contact surfaces of the two groups of sleeves 1 are welded to complete the installation of the two groups of sleeves 1; it should be noted that the two groups of sleeves 1 are installed symmetrically, which can adapt to the irregular "6" shape, and the installation surface can be welded and fixed using welding technology.

[0035] Reference Figure 5 The turnout trunk iron 3 includes a horizontally arranged upper positioning portion 32 and a lower positioning portion 33 in a "6"-shaped structure, wherein the upper positioning portion 32 is connected to the turnout pull rod 2 through a mounting member 31, and the mounting member 31 can be a connecting device such as a bolt or a screw, and the lower positioning portion 33 wraps the operating rod 4.

[0036] The specific operating principles of this application are as follows:

[0037] According to the appearance characteristics of the mechanical part of the switch machine at the swing 6, the protective device is divided into two symmetrical parts, namely two sleeves 1 arranged symmetrically on the left and right, which are cylindrical in shape as a whole, and are concentric with the trunk iron 3, the retaining ring 5 and other parts of the action rod, but with different diameters, to ensure that the normal expansion and contraction of the action rod 5 in the protective device is not affected. The device adopts a local fixed protection method, attached to the trunk iron 3, and the left and right symmetrical parts wrap the swing 6 and lock it with wire. The rod can be freely expanded and contracted in the protective device, and plays the role of protecting the swing (5mm);

[0038] Before use, put the left and right sleeves 1 on the action rod 4 and lock them. When performing maintenance work, you only need to withdraw the sleeves 1 to the left and right sides. The operation is simple and the protection effect is good.

[0039] The present application has come to the conclusion through experiments that when ice has frozen all mechanical parts, after using the sleeve 1 of the present application, the switch machine can still operate normally, and the anti-freezing effect is obvious. Even if rain and snow have covered all the rods, the movable space 6 can still operate normally in the snow, and the anti-snow effect is obvious.

[0040] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A protective device for ensuring the normal start of a railway switch machine, comprising a switch pull rod (2) and a switch trunk iron (3) mounted on the switch pull rod (2), wherein the switch trunk iron (3) is sleeved on the outer side of an operating rod (4), characterized in that: The two sides of the turnout trunk iron (3) and the two sides of the operating rod (4) are also sleeved with retaining rings (5), wherein a clearance (6) is formed between the retaining rings (5) and the turnout trunk iron (3); It also includes two groups of sleeves (1), which are transversely spliced ​​to form a cavity, and the retaining ring (5) and the free spacer (6) can be accommodated in the cavity.

2. A protective device for ensuring normal start-up of a railway switch according to claim 1, characterized in that: A horizontal slot (11) is provided at one end of the sleeve (1), and when two sleeves (1) are spliced ​​together, a slot body formed by splicing the two slots (11) just accommodates the turnout trunk iron (3).

3. A protective device for ensuring normal start-up of a railway switch according to claim 1, characterized in that: The end of the sleeve (1) facing the slot (11) is provided with a connecting frame (12), and a plurality of positioning holes (121) are equidistantly provided on the connecting frame (12).

4. A protective device for ensuring normal start-up of a railway switch according to claim 3, characterized in that: When two groups of sleeves (1) are spliced ​​together, the two groups of positioning holes (121) correspond to each other and are locked together using a tie wire.

5. A protective device for ensuring normal start-up of a railway switch according to claim 1, characterized in that: The sleeve (1) is cylindrical and hollow inside, with both ends being open.

6. A protective device for ensuring normal start-up of a railway switch according to claim 1, characterized in that: The turnout trunk iron (3) comprises an upper positioning portion (32) arranged horizontally and a lower positioning portion (33) in a "6"-shaped structure, wherein the upper positioning portion (32) is connected to the turnout pull rod (2) through a mounting member (31), and the lower positioning portion (33) wraps around an operating rod (4).

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