Glue joint insulation clamping plate rapid forcible entry device

Abstract

The utility model discloses a quick forcible entry device for a glued insulation clamping plate, and mainly relates to the technical field of railway track maintenance. Comprising a taper hole forming tool and a clamping plate ejection tool. The taper hole forming tool comprises a reamer with taper and a power mechanism used for driving the reamer to rotate, and the outer diameter of the reamer is sequentially increased from front to back. The clamping plate ejection tool comprises a bottom frame, a jack is horizontally arranged on the bottom frame, an ejection rod is horizontally arranged at the output end of the jack, the outer diameter of the ejection rod is sequentially increased from front to back, a locking frame is arranged above the jack, one end of the locking frame is hinged to the bottom frame, and a bolt is arranged at the other end of the locking frame. Connecting holes matched with the bolts are formed in the bottom frame; according to the utility model, the cementing insulation clamping plate can be broken and removed in a short time, the operation time is saved, and the influence on the train operation order is reduced.

Description

Technical Field

[0001] This utility model relates to the field of railway track maintenance technology, specifically a device for quickly breaking apart adhesive-bonded insulating clamps. Background Technology

[0002] Adhesive-bonded insulating joints are an important component of railway tracks, primarily used in insulated track circuits on seamless tracks and insulated joints for seamless track turnouts. When a leak in an adhesive-bonded insulating joint causes the turnout to malfunction or its resistance value to fall below the specified value, it is necessary to dismantle and re-bond it. Adhesive-bonded insulation involves completely bonding the clamping plates together with epoxy resin. Because epoxy resin has extremely strong adhesive strength, there are no gaps between the clamping plates and the rail, and no points of leverage. Once a leak occurs, it is very difficult to dismantle. Common dismantling methods include:

[0003] 1) Heat the clamping plates with coal gas, oxygen, or acetylene, and hammer the clamping plates to separate them from the seam. Then use wedges to pry open the clamping plates and replace them.

[0004] 2) Using a rail-pulling machine to pry open the clamping plate from one end with a cutter, this method can easily cause the cutter head to break due to the excessive force required to pry open.

[0005] 3) Using the rail-bending head to pry open the rail from the left and right can easily damage the rail;

[0006] 4) Anchor a bolt hole and use a jack to pry open one side of the clamp. This method is complicated and requires training.

[0007] The time required to remove the steel clamps is generally around 30 minutes, and the exact time is uncertain. Each of the above methods has its drawbacks: some are time-consuming and labor-intensive; others use incorrect force, are cumbersome, and require complicated assembly; some require welding, but due to the stringent requirements of railway safety, it's impossible to guarantee that every worker on duty in an emergency has a welding certificate. This could lead to situations where the re-bonding of the insulation clamps cannot be completed within the railway maintenance window or during a sudden red light warning, resulting in a Class D accident. This significantly impacts railway transportation and disrupts train operations. Therefore, there is an urgent need for a simple, reasonable, and non-damaging device for quickly removing bonded insulation clamps. Utility Model Content

[0008] The purpose of this invention is to solve the problems existing in the prior art and provide a quick-break device for adhesive-bonded insulating clamps, which can break off adhesive-bonded insulating clamps in a short time, saving operation time and reducing the impact on train operation.

[0009] To achieve the above objectives, this utility model employs the following technical solution:

[0010] A quick-release device for adhesive-bonded insulating clamps includes a tapered hole forming tool and a clamp ejection tool. The tapered hole forming tool includes a tapered reamer and a power mechanism for rotating the reamer, the outer diameter of which increases sequentially from front to back. The clamp ejection tool includes a base frame, on which a jack is horizontally mounted. A push rod is horizontally mounted at the output end of the jack, the outer diameter of which increases sequentially from front to back. A locking frame is mounted above the jack, one end of which is hinged to the base frame, and the other end is provided with a bolt. The base frame has a connecting hole adapted to the bolt.

[0011] Preferably, the base frame is provided with a slot adapted to the rail.

[0012] Preferably, the end of the base frame away from the connecting hole is provided with a connecting seat adapted to the locking frame.

[0013] Preferably, the jack is a split-type jack.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] This invention first uses a tapered hole forming tool to process one of the bolt mounting holes of the clamp into a tapered cavity; then it uses a clamp ejection tool to push the clamp open, which can break and dismantle the glued insulating clamp in a short time, saving operation time and reducing the impact on train operation. Attached Figure Description

[0016] Figure 1 This is a schematic diagram showing the usage status of the tapered hole forming tool;

[0017] Figure 2 This is a diagram illustrating the usage of the clamp ejector tool.

[0018] The following are the labels in the attached diagram: 1. Reamer; 2. Base frame; 21. Jack; 22. Top rod; 23. Locking bracket; 24. Bolt; 25. Slot; 26. Connecting seat; 3. Rail; 4. Clamping plate; 5. Nylon sleeve. Detailed Implementation

[0019] The present invention will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the present invention, and these equivalent forms also fall within the scope defined in this application.

[0020] Example: As attached Figure 1-2As shown, this utility model describes a quick-release device for adhesive-bonded insulating clamps, including a tapered hole forming tool and a clamp ejection tool. First, the tapered hole forming tool is used to process one of the bolt mounting holes in the clamp 4 into a tapered cavity; then, the clamp ejection tool is used to push the clamp open. Specifically:

[0021] The tapered hole forming tool includes a tapered reamer 1 and a power mechanism for driving the reamer 1 to rotate, wherein the outer diameter of the reamer 1 increases sequentially from front to back.

[0022] The power mechanism can be a rechargeable electric wrench or a drill. In actual use, the reamer 1 can be a Morse No. 4 reamer. The coarse reamer of the Morse No. 4 reamer is used to enlarge the hole in one bolt mounting hole of the adhesive insulating clamp from one side clamp 4 to the other side clamp 4 (the diameter of the bolt mounting hole on the rail 3 is larger than the diameter of the bolt mounting hole on the clamp 4). This breaks the insulating nylon sleeve 5 and the epoxy resin glue that bonds the nylon sleeve 5, forming a tapered cavity in the entire bolt mounting hole.

[0023] The clamp ejector tool includes a base frame 2, on which a jack 21 is horizontally mounted. The jack 21 is preferably a split-type jack. A push rod 22 is horizontally mounted at the output end of the jack 21. The outer diameter of the push rod 22 increases sequentially from front to back, and the taper of the push rod 22 is the same as that of the reamer 1. A locking frame 23 is mounted above the jack 21. One end of the locking frame 23 is hinged to the base frame 2, and the other end is equipped with a bolt 24. The base frame 2 has a connecting hole corresponding to the bolt 24. The base frame 2 is inserted into the bottom of the rail 3. Through the cooperation of the locking frame 23, the bolt 24, and the connecting hole, the clamp ejector tool is locked onto the rail 3.

[0024] Preferably, the base frame 2 is provided with a slot 25 that is adapted to the rail 3. After the base frame 2 is placed on the underside of the rail 3, the rail 3 is locked in the slot 25.

[0025] Preferably, in order to facilitate the connection between the locking frame and the base frame, the base frame 2 is provided with a connecting seat 26 adapted to the locking frame 23 at the end away from the connecting hole, and the top of the connecting seat 26 is provided with a mounting hole for installing the hinge shaft.

[0026] In practical use, the push rod 22, with the same taper as the Mohs No. 4 reamer at the front end, is inserted into the bolt mounting hole and tightened. The front end of the push rod 22, which is 3cm long and Φ24 in diameter, can extend out of the bolt mounting hole on the opposite side, making it easy to push out the push rod 22 after opening the clamping plate 4. The outer diameter of the thin end is 26.4mm, and the outer diameter of the thick end is 29mm. It is machined with a taper of 1:19.254, corresponding to a taper angle of 2 degrees 58 minutes 31 seconds. The rail web bolt hole is 31mm, which can ensure that the thickest part of the push rod 22 can pass through the rail web bolt hole. The rear end, with a diameter of Φ25 and a length of 145mm, serves as a force transmission rod for connecting with the jack 21.

[0027] Jack 21 can be a split-type jack with a tonnage of 50 tons and a stroke of 50 mm. The base frame 2 passes through the sleeper and hooks onto the rail base. The locking frame 23 hooks onto the rail head by rotating the shaft and is connected to the base frame 2 with bolts 24. The hydraulic pump and cylinder of jack 21 are connected. Pressing the hydraulic pump handle repeatedly causes the cylinder plunger to transmit force through the push rod 22. At this time, the taper of the push rod 22 and the taper of the bolt mounting hole cavity fit tightly together. With the help of the residual nylon sleeve 5 and epoxy resin, the force is transmitted to the opposite clamping plate 4. As the jack 2 continues to apply force, the push rod is squeezed tighter and tighter, and the force is concentrated on the opposite clamping plate 4, which pushes the opposite clamping plate 4 open.

[0028] This invention utilizes a rechargeable electric wrench with a No. 4 Mohs coarse reamer to quickly break the nylon sleeve in the bolt hole; it automatically reams after biting. Operation is simple, installation is convenient, no special training is required, and the time spent breaking the side plates is significantly reduced. A 50-ton jack can completely overcome the adhesive force of the side plates. This breaking method does not damage the rail and will not leave permanent damage. The jacking rod is heat-treated, has high hardness, and can be reused multiple times. The third and fourth holes of the bonded insulating plate are located in the sleeper cavity, allowing the left and right plates to be pried open respectively without lifting the rail.

[0029] One method of using this utility model is as follows:

[0030] Step 1: When it is necessary to remove the glued insulating clamp and re-glue it, the clamp bolts are removed manually on site.

[0031] Step 2: Using a rechargeable electric wrench and a Mohs No. 4 coarse reamer, break the epoxy resin adhesive on the nylon sleeve and bonding sleeve of the bolt hole from different directions (left and right sides) of the third and fourth holes until the reamer is almost completely driven into the bolt hole, so that the third and fourth holes form two opposite tapered cavities.

[0032] Step 3: Insert the tapered jack into the third hole, and use the clamping tool with the 50-tonnage, 50mm stroke split-type jack to push out the tool. Insert the jack from the lower end of the first insertion point, pass through the sleeper, and hook onto the rail bottom. The upper end of the clamping tool hooks onto the rail head by rotating the shaft. Connect the entire device into a whole with the connecting bolts. Press the hydraulic pump handle repeatedly, and the cylinder plunger transmits the force to the opposite clamping plate through the jack, thus opening the opposite clamping plate.

[0033] Step 4: Remove the clamping plate and push out the tool, then hammer the push rod out of the clamping plate.

[0034] Step 5: Insert the push rod into the fourth hole on the other side, push out the clamping plate, turn the tool in the opposite direction, and repeat step 3 to push open the other clamping plate.

Claims

1. A device for quickly breaking apart adhesive-bonded insulating clamps, characterized in that: The tool includes a tapered hole forming tool and a clamp ejector tool. The tapered hole forming tool includes a tapered reamer (1) and a power mechanism for rotating the reamer (1). The outer diameter of the reamer (1) increases sequentially from front to back. The clamp ejector tool includes a base frame (2). A jack (21) is horizontally mounted on the base frame (2). A push rod (22) is horizontally mounted on the output end of the jack (21). The outer diameter of the push rod (22) increases sequentially from front to back. A locking frame (23) is mounted above the jack (21). One end of the locking frame (23) is hinged to the base frame (2), and the other end is equipped with a bolt (24). The base frame (2) is equipped with a connecting hole that is compatible with the bolt (24).

2. The quick-release device for adhesive-bonded insulating clamps according to claim 1, characterized in that: The base frame (2) is provided with a slot (25) adapted to the rail.

3. The quick-release device for adhesive-bonded insulating clamps according to claim 1, characterized in that: The base frame (2) is provided with a connecting seat (26) at the end away from the connecting hole, which is adapted to the locking frame (23).

4. The quick-release device for adhesive-bonded insulating clamps according to claim 1, characterized in that: The jack (21) is a split-type jack.

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