Subway tunnel rigid contact wire laying trolley

Abstract

The present invention discloses a subway tunnel rigid contact network pay-out trolley, which is used to insert the contact network (18) into the busbar (12), and comprises a frame, a guide wheel mechanism, an opening mechanism and a push-in mechanism; the guide wheel mechanism is arranged on both sides of the frame and is slidably connected to the side of the busbar; the opening mechanism is arranged on the top side of the frame, and the lower part of the opening mechanism faces the busbar (12) and is used to insert the contact network into the opening, and the opening mechanism uses a cam opening method to open the busbar; the push-in mechanism is arranged on the top side of the frame, and the lower part of the push-in mechanism faces the busbar (12) and is used to insert the contact network into the busbar (12). Advantages: Greatly save time, increase service life, and change the original screw rod positive and negative tooth opening method to a cam opening method, which greatly reduces the installation time compared with the original screw rod rotating several circles, and can make construction faster and more convenient.

Description

Technical Field

[0001] The invention relates to a subway tunnel rigid contact network pay-out trolley, belonging to the technical field of subway tunnel contact network auxiliary installation. Background Art

[0002] In the subway industry, overhead rigid suspended contact networks are widely used for power transmission, and rigid contact network contact wires are used as contact wires with the locomotive carbon slide plate to obtain current. Due to factors such as electrical corrosion between the contact wire and the locomotive carbon slide plate, mechanical friction of the pantograph carbon slide plate, chemical corrosion, and contact wire oxidation, the copper-silver alloy rigid contact network contact wires are subject to varying degrees of wear. The contact network needs to be replaced.

[0003] Since the subway runs all year round, the contact net can only be dismantled and replaced for about 3 hours after the subway stops operating at night. The time is short and the task is heavy. The installation and removal of the existing wire-laying trolleys on the market are troublesome, which wastes a lot of time. In addition, the contact net is stuck too much or too little in the bus, causing the contact net to be not in a horizontal direction, affecting the operation of the train, making inspection and maintenance difficult. In addition, the trolley has a short service life and is easily damaged. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the defects of the prior art and provide a rigid contact network laying trolley for a subway tunnel.

[0005] In order to solve the above technical problems, the present invention provides a subway tunnel rigid contact network pay-out trolley, which is used to clamp the contact network into the busbar, and includes a frame, a guide wheel mechanism, an opening mechanism and a pushing mechanism;

[0006] The guide wheel mechanism is arranged on both sides of the frame and is slidably connected with the side surfaces of the busbar;

[0007] The opening mechanism is arranged on the top side of the frame, and the lower part of the opening mechanism is directly opposite to the opening of the busbar for inserting into the contact network, and the opening mechanism opens the busbar in a cam opening manner;

[0008] The pushing mechanism is arranged on the top side of the frame, and the lower part of the pushing mechanism is directly opposite to the opening of the busbar for inserting into the contact network, so as to push the contact network into the busbar.

[0009] Further, the frame includes two side panels, at least two side panel connecting plates and at least one contact network top-in fixing plate;

[0010] The two side plates are arranged on both sides of the busbar, the side plate connecting plate and the contact network top-in fixing plate are horizontally fixed between the two side plates, and the side plate connecting plate and the contact network top-in fixing plate are arranged at intervals.

[0011] Furthermore, it also includes a connecting rod fixed between the two side plates.

[0012] Further, the guide wheel mechanism includes a guide wheel, a guide wheel sliding rod and a guide wheel knob;

[0013] The guide wheel is arranged on the inner side of the side plate, the guide wheel knob is arranged on the outer side of the side plate, and the guide wheel sliding rod passes through the side plate and is respectively connected to the guide wheel knob and the guide wheel;

[0014] Among them, the guide wheel is rotatably connected to the guide wheel sliding rod, the guide wheel sliding rod is slidably connected to the side plate, a slot is provided on the outer side of the side plate, and a card matching the slot is provided on the guide wheel knob, and the card is inserted into the slot by rotating the guide wheel knob.

[0015] Further, the opening mechanism includes an opening wheel angular contact bearing, a deep groove ball bearing, a slider fixing member, a slider, a cam, and a rotating handle;

[0016] A deep groove ball bearing and an angular contact bearing are installed in the slider fixing part, and the opening wheel is connected to the deep groove ball bearing and the angular contact bearing respectively. The slider fixing part is installed on the slider, and the handle is connected to the cam. The cam fits the slider fixing part. A matching slide rail is provided under the slider. The rotating handle is rotated to drive the cam to rotate, and the slider translates outward along the slide rail, driving the opening wheel to translate outward.

[0017] Furthermore, the jacking mechanism includes a contact network jacking wheel handle, a screw rod, and a contact network jacking wheel;

[0018] The upper end of the contact network jacking fixing plate is provided with the contact network jacking wheel handle, and the screw rod passes through the contact network jacking fixing plate and respectively connects the contact network jacking wheel handle and the contact network jacking wheel, and the rotational motion of the contact network jacking wheel handle is converted into the up and down linear motion of the contact network jacking wheel through the screw rod.

[0019] Furthermore, it also includes a size indicator. A connecting rod is provided in the middle of the contact net tensioning wheel, and the connecting rod is connected to the size indicator. When the contact net tensioning wheel moves upward, the connecting rod and the size indicator are driven to move upward. A size scale is provided on the side panel, and the size indicator will indicate the current scale value in real time.

[0020] The beneficial effects achieved by the present invention are:

[0021] The utility model has made great improvements on the original equipment on the current market. The original screw tightening guide wheel is improved to a push-in rotating clamping type, which greatly saves time and increases the service life. The original screw rod positive and negative tooth opening method is changed to a cam opening method. The original equipment screw rod is most susceptible to damage due to its long opening force arm and copper thread. We reduce the opening wheel diameter and use the cam opening method to increase the service life of the product. The maximum rotation angle of the cam is 135 degrees, which greatly reduces the installation time compared to the original screw rod rotating several circles, and can make construction faster and more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the bottom structure of the present invention;

[0023] Figure 2 It is a front structural schematic diagram of the present invention;

[0024] Figure 3 It is a longitudinal sectional schematic diagram of the present invention. DETAILED DESCRIPTION

[0025] In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0027] In the description of the present invention, it is necessary to understand that the orientations or positional relationships indicated by the terms "upper", "lower", "top", "bottom", "inside", "outside", etc. are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0028] like Figure 1 , 2As shown in Figure 3, a subway tunnel rigid contact network pay-out trolley of the present invention is used to clamp the contact network 18 into the bus 12, including a side plate 1, a side plate connecting plate 2, a connecting rod 3, a guide wheel 4, a sliding rod 5, a guide wheel knob 6, an opening wheel 7, an angular contact bearing 8, a deep groove ball bearing 9, a slider fixing part 10, a slider 11, a cam 13, a rotating handle 14, a contact network tensioning wheel handle 15, a screw 16, a contact network tensioning wheel 17, a size indicator 19, and a contact network insertion fixing plate 20.

[0029] During the implementation of the present invention, the two side panels 1 are connected by two side panel connecting plates 2 and two connecting rods 3, so that the side panels 1 on both sides can be completely fixed and not deformed. Four groups of guide wheels 4, sliding rods 5 and guide wheel knobs 6 are respectively installed on the two side panels 1, the guide wheels 4 are arranged on the inner side of the side panels 1, and the guide wheel knobs 6 are arranged on the outer side of the side panels 1. The guide wheel sliding rods 5 pass through the side panels 1 and are respectively connected to the guide wheel knobs 6 and the guide wheels 4. The sliding rods 5 can slide inward and outward. When the guide wheels slide inward, the guide wheel sliding rods 5 are completely fixed by rotating the guide wheel knobs 6.

[0030] The two sets of opening wheels 7 are connected together through angular contact bearings 8, deep groove ball bearings 9, slider fixings 10, and sliders 11, so that the opening wheels can both rotate and move axially when connected to the bus 12. There is a cam 13 between each set of opening wheels. When the rotary handle 14 is manually turned, the handle drives the cam 13 to rotate, and the opening wheel 7 will automatically move to both sides, driving the bus 12 to open, making it easier for the contact net 13 to be inserted into the bus. At the same time, the handle has a dead point to prevent the cam from driving the handle to rotate in the running state.

[0031] Specifically, a deep groove ball bearing and an angular contact bearing are installed in the slider fixing part, and the opening wheel 7 is connected to the deep groove ball bearing 9 and the angular contact bearing 8 respectively. At this time, the opening wheel can rotate and can also be subjected to axial force. The slider fixing part 10 is installed on the slider 11, and the handle 14 is connected to the cam 13. The cam 13 fits the slider fixing part 10. A matching slide rail is provided under the slider. The rotating handle 14 is rotated, and the rotating handle 14 drives the cam 13 to rotate. The slider translates outward along the slide rail, driving the opening wheel to translate outward.

[0032] Rotate the contact network tension wheel handle 15 on the contact network tension wheel fixing plate 20 to drive the screw rod 16 to move the contact network tension wheel 17 up and down. When the bus 12 is opened by the opening wheel 7, the contact network 18 is pushed into the bus 12 and clamped. There are size indicator marks 19 on both sides of the side plate 1 to determine the specific position of the contact network tension wheel 17, so that it can be quickly adjusted into place when used again.

[0033] The whole working process of the present invention is:

[0034] The worker lifts the wire-laying trolley to fit the opening wheel with the bus, and then pushes the four guide wheel assemblies to make the guide wheels hang upside down on the parallel plates on both sides of the bus, and rotates the guide wheel knobs to make them stuck, so that the guide wheels will not slide to both sides during use. At this time, the worker does not need to lift the trolley, the trolley is already hung on the bus, and then rotates the cam rotation handle clockwise to the bottom position, the opening wheel will expand the bus clamping groove, manually put in the contact net, rotate the tension wheel handle, the tension wheel moves upward, tightens the contact net, and makes the contact net fit with the bus clamping groove. The worker can push or pull the trolley forward, so that the contact net can be placed in the bus. If the contact net needs to be removed, the method of use is the same, just put the contact net tension wheel to the lowest position to remove the contact net.

[0035] In construction, the progress of the project is 3-6 times faster when using a wire laying trolley than when not using one, and the wire laying quality is improved by more than 3-6 times. There will be no wire jamming or Newton phenomenon during construction, which ensures the quality and progress of the construction. In modern technology, railway construction is rapidly developing towards scientific and technological construction.

[0036] As described above, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. 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 thereof 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 rigid overhead contact wire laying trolley for a subway tunnel, used for clamping an overhead contact wire (18) into a busbar (12), characterized in that: It includes a vehicle frame, a guide wheel mechanism, an opening mechanism and an ejection mechanism; The guide wheel mechanism is arranged on both sides of the frame and is slidably connected with the side surfaces of the busbar; The opening mechanism is arranged on the top side of the vehicle frame, the lower part of the opening mechanism is directly opposite to the busbar (12) for being inserted into the opening of the contact network, and the opening mechanism opens the busbar in a cam opening manner; The pushing mechanism is arranged on the top side of the vehicle frame, and the lower part of the pushing mechanism is directly opposite to the busbar (12) and is used to be inserted into the opening of the contact network, so as to push the contact network (18) into the busbar (12); The vehicle frame comprises two side panels (1), at least two side panel connecting plates (2) and at least one contact network insertion fixing plate (20); The two side plates (1) are arranged on both sides of the busbar (12), the side plate connecting plate (2) and the contact network top-insertion fixing plate are horizontally fixed between the two side plates, and the side plate connecting plate (2) and the contact network top-insertion fixing plate are arranged at intervals; The guide wheel mechanism comprises a guide wheel (4), a guide wheel sliding rod (5) and a guide wheel knob (6); The guide wheel (4) is arranged on the inner side of the side plate (1), the guide wheel knob (6) is arranged on the outer side of the side plate (1), and the guide wheel sliding rod (5) passes through the side plate (1) and is respectively connected to the guide wheel knob (6) and the guide wheel (4); The guide wheel (4) is rotatably connected to the guide wheel sliding rod (5), the guide wheel sliding rod (5) is slidably connected to the side plate (1), a slot is provided on the outer side of the side plate (1), a clamping piece matching the slot is provided on the guide wheel knob (6), and the clamping piece is clamped into the slot by rotating the guide wheel knob (6); The opening mechanism comprises an opening wheel (7), an angular contact bearing (8), a deep groove ball bearing (9), a slider fixing member (10), a slider (11), a cam (13), and a rotating handle (14); A deep groove ball bearing and an angular contact bearing are installed in the slider fixing member (10), the opening wheel (7) is connected to the deep groove ball bearing (9) and the angular contact bearing (8) respectively, the slider fixing member (10) is mounted on the slider (11), the handle (14) is connected to the cam (13), the cam (13) and the slider fixing member (10) are fitted, a slide rail matching the slider is provided below the slider, the rotating handle (14) is rotated, the rotating handle (14) drives the cam (13) to rotate, the slider moves outward along the slide rail, and drives the opening wheel to move outward; The jacking mechanism comprises a contact network jacking wheel handle (15), a screw rod (16), and a contact network jacking wheel (17); The upper end of the contact network jacking fixing plate (20) is provided with the contact network jacking wheel handle (15), and the screw rod (16) passes through the contact network jacking fixing plate (20) and is respectively connected to the contact network jacking wheel handle (15) and the contact network jacking wheel (17), and the rotational motion of the contact network jacking wheel handle (15) is converted into the up and down linear motion of the contact network jacking wheel (17) through the screw rod (16).

2. The subway tunnel rigid overhead wire laying trolley according to claim 1, characterized in that: It also includes a connecting rod fixed between the two side plates (1).

3. The subway tunnel rigid overhead wire laying trolley according to claim 1, characterized in that: The device also includes a size indicator (19), a connecting rod is provided in the middle of the net-touching top tension wheel (17), and the connecting rod is connected to the size indicator (19). When the net-touching top tension wheel (17) moves upward, the connecting rod and the size indicator (19) are driven to move upward. A size scale is provided on the side plate, and the size indicator (19) will indicate the current scale value in real time.

Images