An electric limit wrench for installing e-type elastic rail clips

Abstract

The present invention relates to an electric limit wrench for installing E-type elastic bars, which is used to install E-type elastic bars on both sides of a rail. It includes a main frame, an elastic bar pulling-in mechanism and a control system. The elastic bar pulling-in mechanism includes a double-output shaft motor, a bidirectional electric pull rod and an elastic bar wrench. The double-output shaft motor is connected to the bidirectional electric pull rod, and the bidirectional electric pull rod is connected to the elastic bar wrench. The double-output shaft motor provides a pulling force for the elastic bar wrench through the bidirectional electric pull rod to control the elastic bar wrench to install the E-type elastic bar on both sides of the rail. The control system is used to control the start and stop of the double-output shaft motor and to monitor the installation process and installation state of the E-type elastic bar. Both the elastic bar pulling-in mechanism and the control system are arranged on the main frame, and the main frame is used to fix the positions of the elastic bar pulling-in mechanism and the control system on the rail or to move on the rail. The present invention can improve the installation efficiency of the elastic bar, can monitor the installation process and state of the E-type elastic bar, and ensure standard installation.

Description

Technical Field

[0001] The present invention relates to a railway fastener system, and in particular to an electric limit wrench for installing E-type elastic bars. Background Art

[0002] In the track structures of railway and urban rail transit systems, the rail is fixed to the sleeper and the lower structure through different types of fasteners and fastener elastic bars. Through the bending and twisting deformation of the elastic bars, while playing a buckling role on the rail, it provides limited movement space for the rail, prevents excessive movement of the rail relative to the sleeper, and maintains the stability of the track structure.

[0003] Currently, in domestic subway fasteners, a large number of used fasteners are E-type elastic bars. Their installation method is a boltless installation structure, and a pre-embedded iron seat and a rail pad structure are combined. The structural feature is that there are relatively few components. However, in the subway track fastener system, especially in small-radius curves and sections near stations, the elastic bars are prone to breakage, and workers need to frequently repair and replace the E-type elastic bars.

[0004] For a long time in China, the installation of E-type elastic bars has been carried out manually using a pull rod for installation or replacement, and there is no supporting detection of the installation state after installation. As a result, the assembly distance between the middle limb of the E-type elastic bar and the hole of the iron seat cannot be guaranteed, and the assembly depth of the E-type elastic bar and the mating hole of the rail pad has a large randomness, that is, there is a situation where the distance between the inner side of the small arc at the tail of the E-type elastic bar and the end face of the mating hole of the rail pad is too small or too large, resulting in over-installation or under-installation problems.

[0005] At the initial installation state, local stress concentration has occurred at the transition part between the middle limb of the E-type elastic bar and the large and small arcs. Especially when the installation state of the E-type elastic bar is unreasonable and asymmetric, under the repeated impact of the train operation load, it is more likely to undergo fracture failure. When multiple adjacent elastic bars break, it may cause a larger lateral movement of the rail, and in severe cases, it will also cause a series of operation safety accidents such as an increase in the gauge and train derailment.

[0006] Based on this, there is an urgent need for a device that can achieve precise and rapid installation of the E-type elastic bar of the rail fastener. Summary of the Invention

[0007] Based on the problems of low installation accuracy and low installation efficiency existing in the manual installation or replacement of E-type elastic bars using a manual pull rod in the prior art, the present invention provides an electric limit wrench for installing E-type elastic bars.

[0008] The electric limit wrench for installing E-type elastic bars provided by the present invention can achieve stable, symmetric, and efficient installation of the E-type elastic bar, can monitor and guarantee the installation process and state of the E-type elastic bar, and further control the assembly distance between the inner surface of the large and small arcs of the E-type elastic bar and the end of the iron seat, improving the installation accuracy and installation efficiency of the E-type elastic bar.

[0009] The invention can solve the technical problems that the existing spring clip wrench has low installation efficiency and cannot monitor and guarantee the spring clip installation process and status.

[0010] The purpose of the present invention can be achieved by the following technical solutions:

[0011] The present invention provides an electric limit spanner for installing an E-type spring clip, which is used to install the E-type spring clip on both sides of a rail. The electric limit spanner for installing the E-type spring clip comprises a main frame, a spring clip pulling mechanism and a control system.

[0012] The spring clip pulling mechanism includes a double-shaft motor, a bidirectional electric pull rod, and a spring clip wrench. The double-shaft motor is connected to the bidirectional electric pull rod, and the bidirectional electric pull rod is connected to the spring clip wrench. The double-shaft motor provides a pulling force for the spring clip wrench through the bidirectional electric pull rod to control the spring clip wrench to install the E-type spring clip on both sides of the rail.

[0013] The control system is used to control the start and stop of the double-output shaft motor and to monitor the installation process and installation status of the E-type spring clip;

[0014] The spring bar pulling mechanism and the control system are both arranged on the main frame, and the main frame is used to fix the position of the spring bar pulling mechanism and the control system on the rail or to move them on the rail.

[0015] In one embodiment of the present invention, two spring clip wrenches are provided, which are respectively connected to the two ends of the bidirectional electric pull rod, and the spring clip wrenches are located on both sides of the rail.

[0016] In one embodiment of the present invention, the spring clip wrench is connected to both ends of the bidirectional electric pull rod through a universal joint and a sleeve connecting rod, which can ensure that the force state of the spring clip wrenches on both sides is uniform during the pulling process of the bidirectional electric pull rod.

[0017] In one embodiment of the present invention, the dual-output shaft motor and the bidirectional electric pull rod are connected by a planetary gear or worm gear structure.

[0018] In one embodiment of the present invention, the main frame includes a frame box, an anti-slipping fixing clip, and a moving wheel. The anti-slipping fixing clip is symmetrically installed on both sides of the frame box. When in use, the anti-slipping fixing clip is fixed on the rail to ensure that the electric limit wrench for installing the e-type spring clip does not separate from the rail during operation; the moving wheel is installed at the lower end of the frame box to enable the frame box to be smoothly pushed on the rail;

[0019] The double-output shaft motor and the bidirectional electric pull rod are both located inside the frame box. One end of the elastic strip wrench connected to the bidirectional electric pull rod is located inside the frame box, and one end of the elastic strip wrench for installing the E-type elastic strip extends out of the frame box and is located outside the frame box.

[0020] In an embodiment of the present invention, the bidirectional electric pull rod is fixedly connected inside the frame box through a fixed connecting rod.

[0021] Two moving handles are further provided on the upper part of the side surface of the frame box. The moving handles are used to push the frame box to the position where the E-type elastic strip needs to be installed, facilitating the handling and movement of the frame box.

[0022] In an embodiment of the present invention, the anti-detachment fixing clip includes an upper part and a lower part. The upper part and the lower part of the anti-detachment fixing clip are connected together through a hinge device. During the movement of the frame box, the lower part of the anti-detachment fixing clip is folded and retracted through the hinge device. When the frame box is fixed, the lower part of the anti-detachment fixing clip is unfolded.

[0023] The upper part of the anti-detachment fixing clip is connected to the frame box by means of threading or welding. The bottom end of the lower part of the anti-detachment fixing clip realizes the fixed connection between the anti-detachment fixing clip and the rail through a bolt locking device and a groove-shaped chuck.

[0024] The groove-shaped chuck is arranged at the bottom end of the lower part of the anti-detachment fixing clip. Two surfaces of the groove-shaped chuck are respectively used to fit on two surfaces of the rail web. The bolt locking device is used to pass through one surface of the groove-shaped chuck and fasten the groove-shaped chuck and the rail web.

[0025] The present invention can fix the frame box and the rail together through the anti-detachment fixing clip.

[0026] In an embodiment of the present invention, the moving wheel is connected to the frame box through a connecting frame. The moving wheel and the connecting frame are connected by bearings, making the moving wheel a free wheel.

[0027] In an embodiment of the present invention, the moving wheel is made of wear-resistant rubber material, including but not limited to rubber.

[0028] In an embodiment of the present invention, the moving wheel adopts an inner-low and outer-high structure to achieve surface contact with the rail surface, facilitating movement and not easily derailing.

[0029] In an embodiment of the present invention, a positioning head is provided at the end of the elastic strip wrench. A hook head and a limiting block are provided on the positioning head. The hook head is used to hook different types of E-type elastic strips. During use, the hook head hooks the large-arch circular arc of the E-type elastic strip, and the device is started. The E-type elastic strip is installed in place under the traction of the hook head.

[0030] The limit block and the positioning head are connected by threads, and the limit block can be replaced according to different hole diameters of the iron seat and different types of E-shaped elastic bars to limit and ensure the assembly distance between the middle limb of the E-shaped elastic bar and the matching hole of the iron plate.

[0031] In an embodiment of the present invention, the hook head is made of hard alloy steel material, or the raw material of the hook head is quenched and tempered to improve its hardness.

[0032] In an embodiment of the present invention, the front end of the hook head is flat, which is easy to hook the E-shaped elastic bar.

[0033] In an embodiment of the present invention, the control system includes a monitoring system for the cooperation state of the elastic bar and the iron plate, a control switch, a display panel and a controller.

[0034] The monitoring system for the cooperation state of the elastic bar and the iron plate includes a thin film pressure sensor and a control circuit. The thin film pressure sensor is installed on the surface of the limit block. The thin film pressure sensor is connected to the controller through the control circuit. The controller is connected to the display panel. The controller is also connected to the double-output shaft motor through the control switch to control the opening and closing of the double-output shaft motor.

[0035] The thin film pressure sensor is used to monitor the pressure on the surface of the limit block, that is, to monitor the assembly state of the E-shaped elastic bar, and send a contact signal to the controller. When the thin film pressure sensor is triggered, the data is transmitted back to the controller through the control circuit, and the controller feeds back a stop signal to the double-output shaft motor, and the double-output shaft motor closes and stops pulling the elastic bar wrench.

[0036] The display panel is used to display information on whether the E-shaped elastic bar is installed in place.

[0037] In an embodiment of the present invention, the controller selects a micro industrial control computer, a computer, a Raspberry Pi, etc. with data processing capabilities. For example, a single-chip microcomputer can be selected, but it is not limited to a single-chip microcomputer. The controller is installed inside the rack box.

[0038] In an embodiment of the present invention, the display panel is installed on the upper surface of the rack box.

[0039] In an embodiment of the present invention, the display panel can be a touch screen with a touch program, or a small display panel with mechanical control buttons.

[0040] In an embodiment of the present invention, the electric limit wrench for installing the E-shaped elastic bar further includes an energy supply device, and the energy supply device includes a battery and a generator.

[0041] Both the battery and the generator are used to supply power to the double-output shaft motor and the controller.

[0042] In an embodiment of the present invention, the battery is located inside the rack box, and the generator is located outside the rack box.

[0043] In an embodiment of the present invention, the battery is a rechargeable battery.

[0044] In an embodiment of the present invention, the generator is an external generator.

[0045] The energy supply device uses a built-in battery or an external generator to supply power to the elastic clip pulling mechanism and the control system.

[0046] The electric limit wrench for installing e-type elastic clips provided by the present invention can realize the simultaneous automatic installation of e-type elastic clips on both sides of a single rail, and can also automatically install e-type elastic clips on one side of a single rail according to needs, and detect the process and state of elastic clip installation (the inner side of the small arc of the elastic clip is about 8 mm to 10 mm away from the end of the embedded iron seat), ensuring that the installation meets technical standards such as TB / T 3395.2-2015.

[0047] The electric limit wrench for installing e-type elastic clips provided by the present invention includes: a main body rack, an elastic clip pulling mechanism, a control system, and an energy supply device. The main body rack is used for the bearing and installation of the rest of the system and the locking and positioning during the operation of the entire device; the elastic clip pulling mechanism is used for the simultaneous installation of elastic clips on both sides of the rail, and can also install elastic clips on one side alone; the control system is used for starting and stopping control of the entire device and monitoring the process and state of elastic clip installation; the energy supply device is used for supplying power to the elastic clip pulling mechanism and the control system.

[0048] The electric limit wrench for installing e-type elastic clips provided by the present invention is used for the installation of e-type elastic clips. The working process is as follows: First, replace the limit block matching the e-type elastic clip to be installed. Place the entire device on the rail through the moving handles on both sides, clamp the rail in the wheel groove with the front and rear moving wheels, push the rack box to the position where the e-type elastic clip needs to be installed through the moving handle, fix the device on the rail with the anti-disengagement fixing clips on both sides of the rack box, adjust the position of the e-type elastic clip so that the hook head matches the large arch arc of the e-type elastic clip, and the limit block of the positioning head matches the iron seat hole. Start the device, start the generator to supply power, the double-output shaft motor provides drive for the bidirectional electric pull rod, the bidirectional electric pull rod pulls the elastic clip wrench, and the elastic clip wrench drives the middle limb of the elastic clip to pull it into the iron seat. When the thin film pressure sensor of the monitoring system is triggered, the data is transmitted back to the controller through the control circuit, and the controller feeds back a stop signal, and the bidirectional electric pull rod stops pulling the elastic clip wrench. At the same time, the words "elastic clip installation in place" are displayed on the display panel, indicating that the elastic clip is installed in place. At this time, the inner side of the small arc of the e-type elastic clip is about 8 mm to 10 mm away from the end of the embedded iron seat, and the installation meets the TB / T 3395.2-2015 technical standard. Loosen the anti-disengagement fixing clip, push the rack box to the next e-type elastic clip installation position for e-type elastic clip installation, and repeat the operation.

[0049] Compared with the prior art, the electric limit wrench for installing E-type elastic bars of the present invention can improve the installation efficiency of elastic bars, can symmetrically and stably install multiple elastic bars at the same time, save manpower, and can monitor the installation process and state of E-type elastic bars to ensure standard installation. Description of the Drawings

[0050] Figure 1 It is the front view structural schematic diagram of the electric limit wrench for E-type elastic bars in Embodiment 1 of the present invention;

[0051] Figure 2 is Figure 1 the enlarged structural schematic diagram at A in

[0052] Figure 3 is Figure 1 the enlarged structural schematic diagram at B in

[0053] Figure 4 It is the spatial structural schematic diagram of the anti-drop fixing clip of the electric limit wrench for E-type elastic bars in Embodiment 1 of the present invention;

[0054] Figure 5 It is the enlarged structural schematic diagram of the moving wheel of the electric limit wrench for E-type elastic bars in Embodiment 1 of the present invention;

[0055] Figure 6 It is the enlarged structural schematic diagram of the elastic bar wrench of the electric limit wrench for E-type elastic bars in Embodiment 1 of the present invention;

[0056] Figure 7 is Figure 6 the enlarged structural schematic diagram at C in

[0057] Figure 8 is Figure 6 the structural schematic diagram of the limit blocks with different specifications at D in

[0058] Figure 9 It is the structural schematic diagram before the installation of the E-type elastic bar in Embodiment 1 of the present invention;

[0059] Figure 10 It is the structural schematic diagram after the installation of the E-type elastic bar in Embodiment 1 of the present invention.

[0060] Reference numerals in the drawings:

[0061] Main body frame 1, frame box 11, anti - detachment fixing clip 12, moving wheel 13; elastic strip pulling - in mechanism 2, bidirectional electric pull rod 21, elastic strip wrench 22, fixed connecting rod 23, universal joint 24, sleeve connecting rod 25; control system 3, cooperation state monitoring system 31 of elastic strip and tie plate, control circuit 32, control switch 33, display panel 34, controller 35; energy supply device 4, battery 41, generator 42; moving handle 110, bolt locking device 120, groove - shaped chuck 121, hinge device 122; connecting frame 130, bearing 131; hook head 221, positioning head 222, limit block 223, thin - film pressure sensor 224; rail 5. Detailed implementation mode

[0062] The present invention will be described in detail below with reference to the drawings and specific embodiments.

[0063] Embodiment 1

[0064] Reference Figures 1 - 10 , the present invention provides an electric limit wrench for installing e - type elastic strips, which is used to install e - type elastic strips on both sides of the rail 5. The electric limit wrench for installing e - type elastic strips includes a main body frame 1, an elastic strip pulling - in mechanism 2 and a control system 3. The elastic strip pulling - in mechanism 2 includes a double - output - shaft motor, a bidirectional electric pull rod 21 and an elastic strip wrench 22. The double - output - shaft motor is connected to the bidirectional electric pull rod 21, and the bidirectional electric pull rod 21 is connected to the elastic strip wrench 22. The double - output - shaft motor provides a pulling force for the elastic strip wrench 22 through the bidirectional electric pull rod 21 to control the elastic strip wrench 22 to install the e - type elastic strip on both sides of the rail 5. The control system 3 is used to control the start - stop of the double - output - shaft motor and to monitor the installation process and installation state of the e - type elastic strip; both the elastic strip pulling - in mechanism 2 and the control system 3 are arranged on the main body frame 1, and the main body frame 1 is used to fix the positions of the elastic strip pulling - in mechanism 2 and the control system 3 on the rail 5 or to move on the rail 5.

[0065] Further reference Figure 1 , in this embodiment, there are two elastic strip wrenches 22, which are respectively connected to both ends of the bidirectional electric pull rod 21, and the elastic strip wrenches 22 are located on both sides of the rail.

[0066] Further reference Figure 1 , in this embodiment, the elastic strip wrenches 22 are connected to both ends of the bidirectional electric pull rod 21 through universal joints 24 and sleeve connecting rods 25, which can ensure that the force states of the two elastic strip wrenches 22 on both sides are uniform during the pulling process of the bidirectional electric pull rod 21.

[0067] In this embodiment, a planetary gear or worm structure is used for the transmission connection between the double - output - shaft motor and the bidirectional electric pull rod 21. In this embodiment, the double - output - shaft motor is not shown in the drawings.

[0068] Further reference is made to Figure 1 In this embodiment, the main body frame 1 includes a frame box 11, an anti - detachment fixing clip 12, and moving wheels 13. The anti - detachment fixing clips 12 are symmetrically installed on both sides of the frame box 11. During use, the anti - detachment fixing clips 12 are fixed on the rail to ensure that the electric limit wrench for installing E - type elastic bars does not detach from the rail during operation; the moving wheels 13 are installed at the lower end of the frame box 11 and are used to smoothly push the frame box 11 on the rail;

[0069] Both the double - output - shaft motor and the bidirectional electric pull rod 21 are located inside the frame box 11. One end of the elastic bar wrench 22 connected to the bidirectional electric pull rod 21 is located inside the frame box 11, and the end of the elastic bar wrench 22 for installing the E - type elastic bar extends out of the frame box 11 and is located outside the frame box 11.

[0070] Further reference is made to Figure 1 In this embodiment, the bidirectional electric pull rod 21 is fixedly connected inside the frame box 11 through a fixed connecting rod 23.

[0071] Further reference is made to Figure 1 In this embodiment, two moving handles 110 are further provided on the upper part of the side surface of the frame box 11. The moving handles 110 are used to push the frame box 11 to the position where the E - type elastic bars need to be installed, facilitating the handling and movement of the frame box 11.

[0072] Further reference is made to Figure 4 In this embodiment, the anti - detachment fixing clip 12 includes an upper part and a lower part. The upper part and the lower part of the anti - detachment fixing clip 12 are connected together through a hinge device 122. During the movement of the frame box 11, the lower part of the anti - detachment fixing clip 12 is folded and retracted through the hinge device 122. When the frame box 11 is fixed, the lower part of the anti - detachment fixing clip 12 is unfolded.

[0073] The upper part of the anti - detachment fixing clip 12 is connected to the frame box 11 by threading or welding. The bottom end of the lower part of the anti - detachment fixing clip 12 realizes the fixed connection between the anti - detachment fixing clip 12 and the rail 5 through a bolt locking device 120 and a groove - shaped chuck 121.

[0074] The groove - shaped chuck 121 is arranged at the bottom end of the lower part of the anti - detachment fixing clip 12. Two surfaces of the groove - shaped chuck 121 are respectively used to fit on two surfaces of the rail bottom of the rail 5. The bolt locking device 120 is used to pass through one surface of the groove - shaped chuck 121 and fasten the groove - shaped chuck 121 to the rail bottom.

[0075] The frame box 11 can be fixed to the rail through the anti - detachment fixing clip 12.

[0076] Further reference is made to Figure 5, in this embodiment, the moving wheel 13 is connected to the frame box 11 through a connecting frame 130. A bearing 131 is used to connect the moving wheel 13 and the connecting frame 130, making the moving wheel 13 a free wheel.

[0077] Further reference Figure 5 , in this embodiment, the moving wheel 13 is made of wear-resistant rubber material, including but not limited to rubber.

[0078] Further reference Figure 5 , in this embodiment, the moving wheel 13 has an inner-low and outer-high structure to achieve surface contact with the rail surface, facilitating movement and preventing derailment.

[0079] Further reference Figure 6 、 Figure 7 、 Figure 8 , in this embodiment, a positioning head 222 is provided at the end of the elastic clip wrench 22. A hook head 221 and a limit block 223 are provided on the positioning head 222. The hook head 221 is used to hook different types of E-type elastic clips. During use, the hook head 221 hooks the large-arch circular arc of the E-type elastic clip. When the device is started, the E-type elastic clip is installed in place under the traction of the hook head 221;

[0080] The limit block 223 is threadedly connected to the positioning head 222, and the limit block can be replaced according to different iron seat hole diameters and E-type elastic clip types to limit and ensure the assembly distance between the middle limb of the E-type elastic clip and the matching hole of the iron pad.

[0081] Further reference Figure 6 、 Figure 7 , in this embodiment, the hook head 221 is made of hard alloy steel material, or the raw material of the hook head is heat-treated by quenching and tempering to improve its hardness.

[0082] Further reference Figure 6 、 Figure 7 , in this embodiment, the front end of the hook head 221 is flat, which is easy to hook the E-type elastic clip.

[0083] Further reference Figure 1 、 Figure 2 、 Figure 3 , in this embodiment, the control system 3 includes a monitoring system 31 for the cooperation state of the elastic clip and the iron pad, a control switch 33, a display panel 34, and a controller 35.

[0084] The monitoring system 31 for the cooperation state of the elastic clip and the tie plate includes a thin-film pressure sensor 224 and a control circuit 32. The thin-film pressure sensor 224 is installed on the surface of the limit block 223. The thin-film pressure sensor 224 is connected to the controller 35 through the control circuit 32. The controller 35 is connected to the display panel 34. The controller 35 is also connected to a double-output shaft motor through a control switch 33 for controlling the opening and closing of the double-output shaft motor.

[0085] The thin-film pressure sensor 224 is used to monitor the pressure on the surface of the limit block 223, that is, to monitor the assembly state of the E-type elastic clip, and send a contact signal to the controller 35. When the thin-film pressure sensor 224 is triggered, the data is transmitted back to the controller 35 through the control circuit 32. The controller 35 feeds back a stop signal to the double-output shaft motor, and the double-output shaft motor closes and then stops pulling the elastic clip wrench.

[0086] The display panel 34 is used to display information on whether the E-type elastic clip is installed in place.

[0087] In this embodiment, the controller 35 is selected from a micro industrial control computer, a computer, a Raspberry Pi, etc. with data processing capabilities. For example, a single-chip microcomputer can be selected, but it is not limited to a single-chip microcomputer. The controller 35 is installed inside the frame box 11.

[0088] In this embodiment, the display panel 34 is installed on the upper surface of the frame box 11.

[0089] In this embodiment, the display panel 34 can be a touch screen with an attached touch program, or it can also be a small display panel with mechanical control buttons.

[0090] Further referring to Figure 1 , in this embodiment, the electric limit wrench for installing the E-type elastic clip further includes an energy supply device 4. The energy supply device 4 includes a battery 41 and a generator 42. Both the battery 41 and the generator 42 are used to supply power to the double-output shaft motor and the controller 35.

[0091] In this embodiment, the battery 41 is located inside the frame box 11, and the generator 42 is located outside the frame box 11. The battery 41 is a rechargeable battery. The generator 42 is an external generator. The energy supply device uses a built-in battery or an external generator to supply power to the elastic clip pulling mechanism and the control system.

[0092] The electric limit wrench for installing the E-type elastic clip provided in this embodiment can realize the simultaneous automatic installation of the E-type elastic clips on both sides of a single rail, or can also automatically install the E-type elastic clip on one side of a single rail according to needs, and detect the installation process and state of the elastic clip (the distance between the inner side of the small arc of the elastic clip and the end of the embedded iron seat is about 8 mm to 10 mm) to ensure that the installation meets technical standards such as TB / T 3395.2-2015.

[0093] The electric limit wrench for installing e-type elastic rail clips provided in this embodiment includes: a main body frame, an elastic rail clip pulling-in mechanism, a control system, and an energy supply device. The main body frame is used for the bearing and installation of the rest of the system and the locking and positioning during the operation of the entire device; the elastic rail clip pulling-in mechanism is used for the simultaneous installation of elastic rail clips on both sides of the rail, and can also be used for the installation of elastic rail clips on one side alone; the control system is used for starting and stopping control of the entire device and monitoring the installation process and status of the elastic rail clips; the energy supply device is used for supplying power to the elastic rail clip pulling-in mechanism and the control system.

[0094] The electric limit wrench for installing e-type elastic rail clips provided in this embodiment is used for the installation of e-type elastic rail clips. The working process is as follows: First, replace the limit block matching the installed e-type elastic rail clip, place the entire device on the rail through the moving handles on both sides, clamp the rail in the wheel groove by the front and rear moving wheels, push the frame box to the position where the e-type elastic rail clip needs to be installed through the moving handle, fix the device on the rail through the anti-detachment fixing clips on both sides of the frame box, adjust the position of the e-type elastic rail clip so that the hook head matches the large-arch circular arc of the e-type elastic rail clip, and the limit block of the positioning head matches the iron seat hole. Start the device, start the generator to supply power, the double-output shaft motor provides drive for the bidirectional electric pull rod, the bidirectional electric pull rod pulls the elastic rail clip wrench, and the elastic rail clip wrench drives the middle limb of the elastic rail clip to pull it into the iron seat. When the thin-film pressure sensor of the monitoring system is triggered, the data is transmitted back to the controller through the control circuit, the controller feeds back a stop signal, the bidirectional electric pull rod stops pulling the elastic rail clip wrench, and at the same time, the words "elastic rail clip installed in place" are displayed on the display panel, indicating that the elastic rail clip is installed in place. At this time, the inner side of the small circular arc of the e-type elastic rail clip is about 8 mm to 10 mm away from the end of the embedded iron seat, and the installation meets the technical standard of TB / T3395.2-2015. Loosen the anti-detachment fixing clip, push the frame box to the next installation position of the e-type elastic rail clip for the installation of the e-type elastic rail clip, and repeat the operation.

[0095] Schematic diagrams of the electric limit wrench for installing e-type elastic rail clips provided in this embodiment before and after the installation of the e-type elastic rail clip are respectively as Figure 9 、 Figure 10 shown.

[0096] The above description of the embodiments is for the convenience of those of ordinary skill in the art to understand and use the invention. Those skilled in the art can obviously make various modifications to these embodiments easily and apply the general principles described herein to other embodiments without creative labor. Therefore, the present invention is not limited to the above embodiments, and the improvements and modifications made by those skilled in the art without departing from the scope of the present invention according to the disclosure of the present invention should be within the protection scope of the present invention.

Claims

1. An electric limit wrench for installing E-type elastic fasteners, which is used to install E-type elastic fasteners on both sides of the rail, and is characterized in that, The electric limit wrench for installing E-type elastic rail clips includes a main frame (1), an elastic rail clip pulling mechanism (2), and a control system (3). The elastic rail clip pulling mechanism (2) includes a double-output shaft motor, a bidirectional electric pull rod (21), and an elastic rail clip wrench (22). The double-output shaft motor is connected to the bidirectional electric pull rod (21), and the bidirectional electric pull rod (21) is connected to the elastic rail clip wrench (22). The double-output shaft motor provides a pulling force for the elastic rail clip wrench (22) through the bidirectional electric pull rod (21) to control the elastic rail clip wrench (22) to install the E-type elastic rail clips on both sides of the rail. The control system (3) is used to control the start and stop of the double-output shaft motor and to monitor the installation process and installation status of the E-type elastic rail clips. Both the elastic rail clip pulling mechanism (2) and the control system (3) are arranged on the main frame (1), and the main frame (1) is used to fix the positions of the elastic rail clip pulling mechanism (2) and the control system (3) on the rail or to move them on the rail. The main frame (1) includes a frame box (11), anti-disengagement fixing clips (12), and moving wheels (13). The anti-disengagement fixing clips (12) are symmetrically installed on both sides of the frame box (11). During use, the anti-disengagement fixing clips (12) are fixed on the rail to ensure that the electric limit wrench for installing E-type elastic rail clips does not disengage from the rail during the working process. The moving wheels (13) are installed at the lower end of the frame box (11) and are used to smoothly push the frame box (11) on the rail. Both the double-output shaft motor and the bidirectional electric pull rod (21) are located inside the frame box (11). One end of the elastic rail clip wrench (22) connected to the bidirectional electric pull rod (21) is located inside the frame box (11), and the end of the elastic rail clip wrench (22) for installing the E-type elastic rail clip extends out of the frame box (11) and is located outside the frame box (11). A positioning head (222) is provided at the end of the elastic rail clip wrench (22). A hook head (221) and a limit block (223) are provided on the positioning head (222). The hook head (221) is used to hook the E-type elastic rail clip, and the limit block (223) is threadedly connected to the positioning head (222). The control system (3) includes a monitoring system (31) for the cooperation state of the elastic rail clip and the tie plate, a control switch (33), a display panel (34), and a controller (35). The monitoring system (31) for the cooperation state of the elastic rail clip and the tie plate includes a thin-film pressure sensor (224) and a control circuit (32). The thin-film pressure sensor (224) is installed on the surface of the limit block (223). The thin-film pressure sensor (224) is connected to the controller (35) through the control circuit (32). The controller (35) is connected to the display panel (34). The controller (35) is also connected to the double-output shaft motor through the control switch (33) to control the opening and closing of the double-output shaft motor. The thin-film pressure sensor (224) is used to monitor the pressure on the surface of the limit block (223) and send a contact signal to the controller (35). The controller (35) feeds back a stop signal to the double-output shaft motor, and the double-output shaft motor shuts down and stops pulling the elastic rail clip wrench. The display panel (34) is used to display information on whether the e-type elastic rail clip is installed in place; There are two elastic rail clip wrenches (22), which are respectively connected to both ends of the bidirectional electric pull rod (21), and the elastic rail clip wrenches (22) are located on both sides of the rail; The elastic rail clip wrenches (22) are connected to both ends of the bidirectional electric pull rod (21) through universal joints (24) and sleeve linkages (25).

2. The electric limit wrench for installing E-type elastic bars according to claim 1, characterized in that, The bidirectional electric pull rod (21) is fixedly connected inside the frame box (11) through a fixed linkage (23).

3. An electric limit wrench for installing E-type elastic bars according to claim 1, characterized in that, The anti-detachment fixing clip (12) includes an upper part and a lower part. The upper part and the lower part of the anti-detachment fixing clip (12) are connected together through a hinge device (122). During the movement of the frame box (11), the lower part of the anti-detachment fixing clip (12) is folded and retracted through the hinge device (122). When the frame box (11) is fixed, the lower part of the anti-detachment fixing clip (12) unfolds. The upper part of the anti-detachment fixing clip (12) is connected to the frame box (11) by means of threading or welding. The bottom end of the lower part of the anti-detachment fixing clip (12) realizes the fixed connection between the anti-detachment fixing clip (12) and the rail through a bolt locking device (120) and a groove-shaped chuck (121). The groove-shaped chuck (121) is arranged at the bottom end of the lower part of the anti-detachment fixing clip (12). Two surfaces of the groove-shaped chuck (121) are respectively used for fitting on two surfaces of the rail base. The bolt locking device (120) is used to pass through one surface of the groove-shaped chuck (121) and fasten the groove-shaped chuck (121) to the rail base.

4. An electric limit wrench for installing E-type elastic bars according to claim 1, characterized in that, The moving wheels (13) are connected to the frame box (11) through a connecting frame (130). Bearings (131) are used to connect the moving wheels (13) and the connecting frame (130) to make the moving wheels (13) free wheels.

5. An electric limit wrench for installing E-type elastic bars according to claim 1, characterized in that, The electric limit wrench for installing the e-type elastic rail clip further includes an energy supply device (4). The energy supply device (4) includes a battery (41) and a generator (42). Both the battery (41) and the generator (42) are used to supply power to the double-output shaft motor and the controller (35).

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