Rail layer special for metro

Abstract

The utility model discloses a special rail layer for metros, which relates to the field of rail laying and comprises a frame main body, a first motor is mounted at the top of the frame main body, a steel wire rope is wound on the surface of the first motor, and the bottom of the steel wire rope is connected with a lifting appliance; according to the rail layer special for the subway, the falling speed can be reduced when a steel wire rope is extruded, and the steel wire rope can stop falling along with the increase of the extrusion force of a friction plate, so that a rail is prevented from falling to the ground and being damaged, and the safety and practicability of the rail layer are improved; therefore, the speed reduction effect is achieved, abrasion generated by extrusion of the friction plate and a steel wire rope can be reduced, the service life of an extrusion mechanism part is prolonged, a positioning groove and a through hole can slide through a positioning block and an insertion block when moving, and when the through hole slides out of the side face of the insertion block, the friction plate can be detached and replaced; the efficiency of replacing the friction plate is improved, and the use convenience of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of track laying, in particular to a special track laying machine for subways. Background Technique

[0002] Track laying refers to the process of setting up a track system for vehicles such as trains and subways on the ground or underground. The subway is a type of urban rail transit line system and an underground vehicle. When constructing a subway, a track laying machine is required. This is a mechanical device specifically used for laying railways or urban rail transit systems, mainly for automatically laying tracks to improve the track laying efficiency and quality.

[0003] In the prior art, a Chinese patent with the authorization announcement number CN213416054U discloses a track laying machine with a large variable span, belonging to the field of track laying. Its technical key points include a track sling, and also include a variable span adjusting device, a gantry leg, and a running ground beam; the variable span adjusting device includes a main beam movable section, a main beam fixed section, and a telescopic cylinder I. The main beam movable section consists of two correspondingly arranged and juxtaposed rectangular sleeves, and there is a gap between the two rectangular sleeves. A partition corresponding to the length of the rectangular sleeve is provided in the middle position of the rectangular sleeve. Both ends of the main beam movable section are provided with main beam fixed sections; the main beam fixed section is a U-shaped structure, and the open ends of the two main beam fixed sections are movably inserted corresponding to the main beam movable section, and the two main beam fixed sections are correspondingly arranged in a cross pattern; one end of the telescopic cylinder I is hinged to the closed end of the main beam fixed section; the utility model effectively solves the problem of the small variable span range of the track laying machine.

[0004] Most of the track laying machines currently used in the market still have certain deficiencies. As described in the above document, its technical key points include a track sling, and also include a variable span adjusting device, a gantry leg, and a running ground beam. If the sling loses power, it will drive the track to fall downward, which is likely to cause damage to the track. Secondly, the sudden drop may cause the track laying machine to be unstable, and the machine itself is also easily damaged by a large impact. Therefore, it is more troublesome to use and the existing structure needs to be improved. Summary of the Invention

[0005] The purpose of the utility model is to provide a special track laying machine for subways to solve the problems that when the first motor of the track laying machine loses power, the track may fall to the ground and cause damage, and it is inconvenient to replace the friction plate after wear as mentioned in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A special track laying machine for subways includes a frame body. A first motor is installed on the top of the frame body. A steel wire rope is wound around the surface of the first motor, and a sling is connected to the bottom of the steel wire rope.

[0007] A sliding groove is provided on the upper surface of the frame body. An extrusion mechanism for clamping the steel wire rope is arranged inside the sliding groove. The extrusion mechanism includes a second motor installed inside the sliding groove. A bidirectional threaded rod is fixed to the output end of the second motor. The bidirectional threaded rod rotates inside the sliding groove. Sliding blocks are symmetrically and threadedly connected to the surface of the bidirectional threaded rod. The sliding blocks slide inside the sliding groove. A fixing plate is fixed to the upper surface of the sliding blocks. A connecting plate is connected to the inner side of the fixing plate. A friction plate is connected to the side of the connecting plate. A wire guiding member is installed on the upper surface of the frame body. A steel wire rope is connected through the wire guiding member;

[0008] A plurality of positioning blocks are fixed to the right side of the connecting plate. A disassembly and assembly mechanism for replacing the friction plate is arranged on the right side of the connecting plate.

[0009] Furthermore, a deceleration mechanism for reducing the wear of the friction plate is arranged on the left side of the connecting plate. The deceleration mechanism includes a first rotating block fixed to the left side of the connecting plate. The first rotating block penetrates and rotates inside the fixing plate.

[0010] Furthermore, a tooth block is fixed to the end of the first rotating block. A second rotating block is connected to the side of the tooth block. The second rotating block rotates on the side of the fixing plate.

[0011] Furthermore, a fixing block is fixed to the side of the fixing plate close to the second rotating block. A first spring is connected between the fixing block and the second rotating block.

[0012] Furthermore, the disassembly and assembly mechanism includes an insertion block fixed to the right side of the connecting plate. A through hole is penetrated through the central part of the friction plate. A plurality of positioning grooves are opened on the side of the friction plate close to the through hole.

[0013] Furthermore, a telescopic groove is opened on the side of the positioning block. A second spring is connected inside the telescopic groove. The top end of the second spring is connected to a telescopic block. A limiting block is fixed to the side of the telescopic block. The limiting block penetrates and slides inside a limiting groove. The limiting groove is opened on the side of the telescopic groove.

[0014] Furthermore, the telescopic block and the telescopic groove are of a telescopic structure through the second spring. The connecting plate, the positioning block, and the insertion block are of an integral structure. The telescopic block and the limiting block are of an integral structure. The limiting block and the limiting groove are of a sliding connection.

[0015] Compared with the prior art, the beneficial effects of the present utility model are:

[0016] 1. For this special track-laying machine for subways, when the steel wire rope is squeezed, the falling speed can be reduced, and as the extrusion force of the friction plate increases, the steel wire rope can stop falling, thus preventing the track from falling to the ground and being damaged, improving the safety and practicality of the track-laying machine. The first spring can increase the resistance when the tooth block rotates, thus achieving a deceleration effect, reducing the wear caused by the extrusion of the friction plate and the steel wire rope, and improving the service life of the components of the extrusion mechanism. When the positioning groove and the through hole move, they can slide through the positioning block and the insertion block respectively. When the through hole slides out of the side of the insertion block, the friction plate can be disassembled and replaced, improving the efficiency when replacing the friction plate and the convenience of using the device;

[0017] 2. A bidirectional threaded rod is provided. By means of the bidirectional threaded rod, two friction plates can be driven simultaneously to squeeze the side of the steel wire rope, improving the strength when squeezing the steel wire rope, and thus more effectively preventing the steel wire rope from falling;

[0018] 3. A wire guiding member is provided. By means of the wire guiding member, the movement of the steel wire rope can be guided, preventing the steel wire rope from shifting when the friction plate squeezes it, and improving the stability when the friction plate squeezes;

[0019] 4. A second rotating block and a tooth block are provided. The speed of the connecting plate when rotating can be reduced by the extrusion force between the tooth block and the second rotating block, thus reducing the impact force caused when squeezing the steel wire rope and improving the service life of the components;

[0020] 5. A second spring is provided. By means of the second spring, the telescopic block can be driven to expand and contract, enabling the friction plate to be disassembled, with simple operation and improving the efficiency when replacing the friction plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is the front view three-dimensional structure schematic diagram of the whole of the present utility model;

[0022] Figure 2 is the enlarged three-dimensional structure schematic diagram of the lifting appliance of the present utility model;

[0023] Figure 3 is the enlarged three-dimensional structure schematic diagram of the first motor of the present utility model;

[0024] Figure 4 is the enlarged three-dimensional structure schematic diagram of the bidirectional threaded rod of the present utility model;

[0025] Figure 5 is the disassembled three-dimensional structure schematic diagram of the fixing plate of the present utility model;

[0026] Figure 6 is the disassembled three-dimensional structure schematic diagram of the connecting plate of the present utility model;

[0027] Figure 7Schematic diagram of the sectional three-dimensional structure of the connecting plate of the present utility model;

[0028] Figure 8 For the present utility model Figure 7 Schematic diagram of the enlarged three-dimensional structure of part A in it.

[0029] In the figure: 1. Frame main body; 2. First motor; 3. Steel wire rope; 4. Hoisting tool; 101. Sliding groove; 102. Second motor; 103. Bidirectional threaded rod; 104. Sliding block; 105. Fixed plate; 106. Connecting plate; 107. Friction plate; 108. Rope guiding member; 109. First rotating block; 110. Tooth block; 111. Second rotating block; 112. Fixed block; 113. First spring; 114. Positioning block; 115. Insert block; 116. Through hole; 117. Positioning groove; 118. Telescopic groove; 119. Second spring; 120. Telescopic block; 121. Limiting block; 122. Limiting groove. Specific embodiments

[0030] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0031] Embodiment 1:

[0032] As Figures 1 - 4 shown in the technical solution, the present invention provides the following technical solution: In order to solve the problem that when the first motor 2 of the track laying machine loses power, the track may fall to the ground and may be damaged, an extrusion mechanism is disclosed:

[0033] It includes a frame main body 1. A first motor 2 is installed on the top of the frame main body 1. A steel wire rope 3 is wound around the surface of the first motor 2. The bottom of the steel wire rope 3 is connected to a lifting appliance 4. A sliding groove 101 is formed on the upper surface of the frame main body 1. An extrusion mechanism for clamping the steel wire rope 3 is arranged inside the sliding groove 101. The extrusion mechanism includes a second motor 102. The second motor 102 is installed inside the sliding groove 101. The output end of the second motor 102 is fixed with a bidirectional threaded rod 103. The bidirectional threaded rod 103 rotates inside the sliding groove 101. Symmetrically threaded connection blocks 104 are arranged on the surface of the bidirectional threaded rod 103. The sliding blocks 104 slide inside the sliding groove 101. A fixing plate 105 is fixed on the upper surface of the sliding block 104. The inner side of the fixing plate 105 is connected to a connecting disc 106. A friction plate 107 is connected to the side of the connecting disc 106. A wire guiding member 108 is installed on the upper surface of the frame main body 1. The steel wire rope 3 penetrates through the inside of the wire guiding member 108. A plurality of positioning blocks 114 are fixed on the right side of the connecting disc 106. A disassembly and assembly mechanism for replacing the friction plate 107 is arranged on the right side of the connecting disc 106;

[0034] When the track laying machine is in use, driven by the first motor 2, the steel wire rope 3 can pull the track to move through the lifting appliance 4. When the first motor 2 loses power, under the action of gravity, the lifting appliance 4 can pull the steel wire rope 3 to move in the reverse direction. When the steel wire rope 3 is pulled, it can fall through the inside of the wire guiding member 108. At this time, starting the output end of the second motor 102 can drive the bidirectional threaded rod 103 to rotate. When the bidirectional threaded rod 103 rotates, it can drive the two sliding blocks 104 to perform symmetric threaded sliding. When the two sliding blocks 104 perform threaded sliding, they can drive the sliding groove 101 to slide. When the sliding blocks 104 slide, they can drive the fixing plate 105 to move. When the fixing plate 105 moves, it can drive the connecting disc 106 to move. When the connecting disc 106 moves, it can drive the two friction plates 107 to move to the side of the steel wire rope 3 for extrusion. When the steel wire rope 3 is squeezed, its falling speed can be reduced, and as the squeezing force of the friction plate 107 increases, the steel wire rope 3 can stop falling, thereby preventing the track from falling to the ground and being damaged, improving the safety and practicability of the track laying machine.

[0035] Embodiment 2:

[0036] As Figures 3 - 5 shown in the technical solution, the present invention provides the following technical solution: To solve the problem that the extrusion mechanism of the track laying machine will cause a large impact during use, affecting the service life and safety of the machine, a deceleration mechanism is disclosed:

[0037] A speed reduction mechanism for reducing the wear of the friction plate 107 is arranged on the left side of the connecting disk 106, and the speed reduction mechanism includes a first rotating block 109, and the first rotating block 109 is fixed on the left side of the connecting disk 106, the first rotating block 109 rotates through the fixed plate 105, a tooth block 110 is fixed on the end of the first rotating block 109, and a second rotating block 111 is connected to the side of the tooth block 110, the second rotating block 111 rotates on the side of the fixed plate 105, and a fixed block 112 is fixed on the side of the fixed plate 105 close to the second rotating block 111, and a first spring 113 is connected between the fixed block 112 and the second rotating block 111. When the squeezing mechanism of the track laying machine is in use, the connecting disk 106 can drive the friction plate 107 to squeeze the surface of the wire rope 3. Under the action of the wire rope 3, the connecting disk 106 can drive the first rotating block 109 to rotate when it is squeezed, and the first rotating block 109 can rotate through the fixed When the fixed plate 105 rotates, the first rotating block 109 can drive the tooth block 110 to rotate when it rotates. When the tooth block 110 rotates, the tooth surface can squeeze the side of the second rotating block 111. When the second rotating block 111 is squeezed, it can rotate through the fixed plate 105. When the second rotating block 111 rotates, it can squeeze the first spring 113 through the fixed block 112. When the first spring 113 is squeezed, it can be deformed. When the first spring 113 is deformed, a reaction force can be generated. The resistance of the tooth block 110 during rotation can be increased through the reaction force, thereby achieving a deceleration effect. The reduction effect can reduce the wear caused by the squeezing of the friction plate 107 and the wire rope 3. At the same time, the rope guide 108 can guide the wire rope 3 to prevent the friction plate 107 from squeezing the wire rope 3 out of the inside when rotating, thereby increasing the service life of the extrusion mechanism components and indirectly improving the product quality of the track laying machine.

[0038] Embodiment three:

[0039] like Figures 6 - 8 The technical solution shown in the figure, the present invention provides the following technical solution: In order to solve the problem that the friction plate 107 of the track laying machine is inconvenient to replace after being worn, which affects the efficiency of the device, a disassembly and assembly mechanism is disclosed:

[0040] The disassembly and assembly mechanism includes an insertion block 115, which is fixed to the right side of the connection plate 106. A through hole 116 is formed through the center of the friction plate 107. A plurality of positioning grooves 117 are formed on the side of the friction plate 107 near the through hole 116. A telescopic groove 118 is formed on the side of the positioning block 114. A second spring 119 is connected inside the telescopic groove 118. The top of the second spring 119 is connected with a telescopic block 120. A limiting block 121 is fixed to the side of the telescopic block 120. The limiting block 121 slides through the limiting groove 122. The limiting groove 122 is formed on the side of the telescopic groove 118. The telescopic block 120 and the telescopic groove 118 are of a telescopic structure through the second spring 119. The connection plate 106, the positioning block 114 and the insertion block 115 are of an integral structure. The telescopic block 120 and the limiting block 121 are of an integral structure. The limiting block 121 and the limiting groove 122 are in a sliding connection. After the friction plate 107 is worn out after long-term use of the track laying machine, it needs to be replaced. Pressing the telescopic block 120 can drive the movement of the limiting block 121. When the limiting block 121 moves, it can slide through the limiting groove 122. When the telescopic block 120 slides, it can squeeze the second spring 119. After the telescopic block 120 is squeezed into the telescopic groove 118, the friction plate 107 is pulled. When the friction plate 107 is pulled, it can drive the movement of the positioning groove 117 and the through hole 116. When the positioning groove 117 and the through hole 116 move, they can slide through the positioning block 114 and the insertion block 115 respectively. When the through hole 116 slides out of the side of the insertion block 115, the friction plate 107 can be disassembled and replaced, improving the efficiency of replacing the friction plate 107 and the convenience of using the device.

[0041] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A special track-laying machine for subways, comprising a frame body (1), a first motor (2) is installed on the top of the frame body (1), a steel wire rope (3) is wound around the surface of the first motor (2), and a spreader (4) is connected to the bottom of the steel wire rope (3), characterized in that ； A sliding groove (101) is formed on the upper surface of the frame body (1). An extrusion mechanism for clamping the steel wire rope (3) is arranged inside the sliding groove (101). The extrusion mechanism includes a second motor (102) installed inside the sliding groove (101). A bidirectional threaded rod (103) is fixed to the output end of the second motor (102). The bidirectional threaded rod (103) rotates inside the sliding groove (101). Sliding blocks (104) are symmetrically and threadedly connected to the surface of the bidirectional threaded rod (103). The sliding blocks (104) slide inside the sliding groove (101). A fixing plate (105) is fixed to the upper surface of the sliding blocks (104). A connecting disc (106) is connected to the inner side of the fixing plate (105). A friction plate (107) is connected to the side of the connecting disc (106). A wire guiding member (108) is installed on the upper surface of the frame body (1). The steel wire rope (3) is connected through the wire guiding member (108). A plurality of positioning blocks (114) are fixed to the right side of the connecting disc (106). A disassembly and assembly mechanism for replacing the friction plate (107) is arranged on the right side of the connecting disc (106).

2. The special track-laying machine for subway according to claim 1, characterized in that: A deceleration mechanism for reducing the wear of the friction plate (107) is arranged on the left side of the connecting disc (106). The deceleration mechanism includes a first rotating block (109) fixed to the left side of the connecting disc (106). The first rotating block (109) penetrates and rotates inside the fixing plate (105).

3. The special track-laying machine for subway according to claim 2, characterized in that: A tooth block (110) is fixed to the end of the first rotating block (109). The tooth block (110) is connected to a second rotating block (111) on the side. The second rotating block (111) rotates on the side of the fixing plate (105).

4. The special track-laying machine for subway according to claim 3, wherein: A fixed block (112) is fixed to the side of the fixing plate (105) close to the second rotating block (111). A first spring (113) is connected between the fixed block (112) and the second rotating block (111).

5. A special track-laying machine for subways according to claim 1, characterized in that: The disassembly and assembly mechanism includes an insertion block (115) fixed to the right side of the connecting disc (106). A through hole (116) is formed through the center of the friction plate (107). A plurality of positioning grooves (117) are formed on the side of the friction plate (107) close to the through hole (116).

6. The track-laying machine dedicated to subways according to claim 1, characterized in that: A telescopic groove (118) is formed on the side of the positioning block (114). A second spring (119) is connected inside the telescopic groove (118). The top of the second spring (119) is connected to a telescopic block (120). A limiting block (121) is fixed to the side of the telescopic block (120). The limiting block (121) penetrates and slides inside a limiting groove (122). The limiting groove (122) is formed on the side of the telescopic groove (118).

7. A special track-laying machine for subways according to claim 6, characterized in that: The telescopic block (120) is a telescopic structure with the telescopic groove (118) through the second spring (119). The connecting disc (106), the positioning block (114), and the inserting block (115) are of an integral structure. The telescopic block (120) and the limiting block (121) are of an integral structure. The limiting block (121) is slidably connected with the limiting groove (122).

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