Tamping wagon and electric drive double-sleeper tamping device

Abstract

The utility model discloses an electrically-driven double-sleeper tamping device and a tamping operation control method, relates to the field of railway line maintenance and aims to solve the problem that a double-sleeper tamping device cannot quickly change the rotating speed of an eccentric shaft to adjust the vibration frequency, a lifting driving device is arranged at the top of a box body, and a guide column penetrates through the box body in the height direction of the box body. The vibration driving mechanism comprises a first motor and a second motor which are symmetrically arranged on the two sides of the box body, the output end of the first motor is connected with a first eccentric shaft, the output end of the second motor is connected with a second eccentric shaft, and the first eccentric shaft and the second eccentric shaft are both installed on a bearing seat of the box body through bearings. One end of the opening-closing driving device is connected with the first eccentric shaft and the second eccentric shaft through bearings, the other end of the opening-closing driving device is connected with the pickaxe arm through a pin shaft, the pickaxe arm is hinged to the box, a tamping pickaxe is arranged at the bottom of the pickaxe arm, and the lifting driving device, the vibration driving mechanism and the opening-closing driving device are all connected with the control device.

Description

Technical Field

[0001] The utility model relates to the technical field of railway line maintenance and repair, and more specifically to a tamping vehicle and an electric-driven double-sleeper tamping device. Background Art

[0002] Tamping operation is one of the main tasks of ballasted railway track maintenance, which can effectively restore the geometric parameters of the line, improve the stability of the track bed, and ensure the safety of train driving. The existing double-sleeper tamping device uses a hydraulic motor to drive an eccentric shaft to tamp the inside and outside of the rail. The hydraulic system has a slow response speed and a large inertia of the rotating parts. It is impossible to quickly change the speed of the eccentric shaft to adjust the vibration frequency, so that the vibration frequency is fixed during the operation. The operation noise is relatively large. At the same time, the existing double-sleeper tamping device also has problems such as easy slippage of the lifting cylinder thread, excessive insertion angle of the pick arm, and unreasonable control of the clamping amount.

[0003] Therefore, how to solve the problem that the double-sleeper tamping device cannot quickly change the eccentric shaft speed to adjust the vibration frequency is an urgent problem to be solved by technical personnel in this field. Utility Model Content

[0004] In view of this, the purpose of the utility model is to provide an electrically driven double-sleeper tamping device, by arranging a first motor and a second motor to respectively drive the first eccentric shaft and the second eccentric shaft, so as to achieve different rotation speeds adopted in different stages of the operation process, thereby realizing the adjustment of the tamping operation frequency, which can both meet the operation requirements and reduce noise.

[0005] Another object of the utility model is to provide a tamping vehicle including the above-mentioned electric-driven double-sleeper tamping device, each tamping vehicle is equipped with two sets of electric-driven double-sleeper tamping devices, one set of which performs tamping operations on the ballasts on both sides of the left rail, and the other set of which performs tamping operations on the ballasts on both sides of the right rail. The speed of the first motor and the second motor in different operating states is controlled by a control device so that the vibration frequency is unified, so as to reduce the noise generated by the tamping vehicle during the tamping operation.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] An electric-driven double-sleeper tamping device, comprising:

[0008] Box;

[0009] A guide column is arranged to penetrate the box body along the height direction of the box body, so that the box body can be lifted and lowered along the guide column;

[0010] A lifting drive device is arranged on the top of the box body through a pin shaft;

[0011] A vibration drive mechanism is arranged in the box body, and the vibration drive mechanism includes a first motor and a second motor symmetrically arranged on both sides of the box body, the output end of the first motor is connected to the first eccentric shaft, the output end of the second motor is connected to the second eccentric shaft, and the first eccentric shaft and the second eccentric shaft are both installed on the bearing seat of the box body through bearings;

[0012] An opening and closing driving device, one end of which is connected to the first eccentric shaft and the second eccentric shaft through a bearing, and the other end of which is connected to the pick arm through a pin shaft, a tamping pick is installed at the bottom of the pick arm, and the pick arm is hinged to the box body;

[0013] The lifting drive device, the vibration drive mechanism, and the opening and closing drive device are all connected to the control device.

[0014] Preferably, the first motor and the second motor are axial flux motors.

[0015] Preferably, the lifting drive device is fixed to the top of the box body through a pin shaft.

[0016] Preferably, the opening and closing drive device is provided with a pressure sensor and a linear displacement sensor connected to the control device, and the linear displacement sensor is configured as a built-in or external type.

[0017] Preferably, the opening and closing driving device comprises:

[0018] Cylinder body;

[0019] The piston rod is arranged in the cylinder body, the linear displacement sensor is arranged in the cylinder body, or the linear displacement sensor is arranged outside the cylinder body.

[0020] Preferably, the first eccentric shaft comprises:

[0021] The first eccentric section is connected to the opening and closing driving device through a bearing;

[0022] The first concentric section is arranged at two ends of the first eccentric section, and the first concentric section is installed on the bearing seat in the middle of the box body and the bearing seat at the end of the box body through bearings.

[0023] Preferably, the second eccentric shaft comprises:

[0024] The second eccentric section is connected to the opening and closing driving device through a bearing;

[0025] The second concentric section is arranged at both ends of the second eccentric section, and the second concentric section is installed on the bearing seat in the middle of the box body and the bearing seat at the end of the box body through bearings.

[0026] Preferably, the opening and closing driving device comprises:

[0027] A first external opening and closing driving device, one end of which is connected to the first eccentric section via a bearing, and the other end of which is connected to the pickaxe arm via a pin shaft;

[0028] A first internal opening and closing driving device, one end of which is connected to the first eccentric section via a bearing, and the other end of which is connected to the pickaxe arm via a pin shaft;

[0029] A second external opening and closing drive device, one end of which is connected to the second eccentric section via a bearing, and the other end of which is connected to the pickaxe arm via a pin shaft;

[0030] The second inner opening and closing driving device has one end connected to the second eccentric section through a bearing, and the other end connected to the pickaxe arm through a pin shaft.

[0031] Preferably, the pickaxe arm comprises:

[0032] A first outer pick arm, one end of which is connected to a first outer opening and closing driving device;

[0033] A first inner pick arm, one end of which is connected to a first inner opening and closing driving device;

[0034] A second outer pick arm, one end of which is connected to a second outer opening and closing driving device;

[0035] The second inner pick arm and one end of the second outer pick arm are connected to the second inner opening and closing driving device.

[0036] Preferably, the tamping pick comprises:

[0037] a first external ramming pick connected to the other end of the first external pick arm;

[0038] a first inner ramming pick connected to the other end of the first inner pick arm;

[0039] a second outer ramming pick connected to the other end of the second outer pick arm;

[0040] The second inner tamping pick is connected to the other end of the second inner pick arm.

[0041] Preferably, the box body and the pickaxe arm are both provided with an angle sensor to measure the rotation angle of the pickaxe arm, and the angle sensor comprises:

[0042] External angle sensors are provided between the box body and the first external pick arm, and between the box body and the second external pick arm;

[0043] The inner angle sensor is arranged between the box body and the first inner pick arm, and between the box body and the second inner pick arm.

[0044] Preferably, at least two guide posts are provided, and at least two guide posts are symmetrically arranged on the box body.

[0045] A tamping vehicle comprises two sets of the electric-driven double-sleeper tamping devices described in any one of the above.

[0046] Preferably, a wire sensor is provided between the tamping vehicle and the electric-driven double-sleeper tamping device, or a linear displacement sensor is provided on the lifting drive device.

[0047] The electric-driven double-sleeper tamping device provided by the utility model comprises a box body, a guide column, a lifting drive device, a vibration drive mechanism and an opening and closing drive device; specifically, the lifting drive device is arranged on the top of the box body, the guide column penetrates the box body along the height direction of the box body, the box body is driven to move up and down along the guide column by the lifting drive device, the vibration drive mechanism is arranged in the box body, the vibration drive mechanism is connected to the control device, the operation of the vibration drive mechanism is controlled by the control device, the vibration drive mechanism comprises a first motor and a second motor symmetrically arranged on both sides of the box body, the output end of the first motor is connected to the first eccentric shaft, and the output end of the second motor is connected to the second eccentric shaft The first eccentric shaft and the second eccentric shaft are both installed on the bearing seat of the box body through bearings, one end of the opening and closing drive device is connected to the first eccentric shaft and the second eccentric shaft through a bearing, the first eccentric shaft is driven to rotate by the first motor, and the second eccentric shaft is driven to rotate by the second motor, thereby driving the opening and closing drive device to operate, the other end of the opening and closing drive device is connected to the pick arm through a pin shaft, the pick arm is hinged to the box body, and the pick arm is driven to rotate around the box body through the operation of the opening and closing drive device, so that the tamping pick forms a clamping action, the lifting drive device, the vibration drive mechanism, and the opening and closing drive device are all connected to the control device, and the operating states of the three are controlled by the control device.

[0048] The electric-driven double-sleeper tamping device arranged in the above manner, by arranging the first motor and the second motor to drive the first eccentric shaft and the second eccentric shaft respectively, can realize different rotation speeds used in different stages of the operation process, thereby realizing the adjustment of the tamping operation frequency, which can both meet the operation requirements and reduce noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0050] Figure 1 This is a schematic diagram of the structure of the electric-driven double-sleeper tamping device provided by the utility model;

[0051] Figure 2 A side view of the electric-driven double-sleeper tamping device provided by the utility model;

[0052] Figure 3 A cross-sectional view of the lifting drive device provided by the utility model;

[0053] Figure 4 A schematic diagram of the structure of the lifting drive device provided by the utility model;

[0054] Figure 5 A cross-sectional view of the linear displacement sensor provided by the utility model;

[0055] Figure 6 A cross-sectional view of the vibration drive mechanism provided by the utility model;

[0056] Figure 7 The utility model is a schematic structural diagram of the tamping vehicle provided by the utility model.

[0057] Figure 1-Figure 7 , the reference numerals include:

[0058] 1-box body, 11-bearing seat in the middle of the box body, 12-bearing seat at the end of the box body;

[0059] 2-Guide column;

[0060] 3-lifting drive device;

[0061] 4-vibration drive mechanism, 41-first motor, 42-second motor, 43-first eccentric shaft, 431-first eccentric section, 432-first concentric section, 44-second eccentric shaft, 441-second eccentric section, 442-second concentric section;

[0062] 5-opening and closing driving device, 51-cylinder body, 52-piston rod, 53-first external opening and closing driving device, 54-first internal opening and closing driving device, 55-second external opening and closing driving device, 56-second internal opening and closing driving device;

[0063] 6-pick arm, 61-first outer pick arm, 62-first inner pick arm, 63-second outer pick arm, 64-second inner pick arm;

[0064] 7-ramming pick, 71-first outer ramming pick, 72-first inner ramming pick, 73-second outer ramming pick, 74-second inner ramming pick;

[0065] 8-Linear displacement sensor;

[0066] 9-angle sensing device, 91-external angle sensor, 92-internal angle sensor. DETAILED DESCRIPTION

[0067] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0068] The core of the utility model is to provide an electrically driven double-sleeper tamping device, which respectively drives the first eccentric shaft 43 and the second eccentric shaft 44 by arranging a first motor 41 and a second motor 42 to realize different rotation speeds in different stages of the operation process, thereby realizing the adjustment of the tamping operation frequency, which can both meet the operation requirements and reduce noise.

[0069] Another core of the utility model is to provide a tamping vehicle including the above-mentioned electric-driven double-sleeper tamping device, each tamping vehicle is equipped with two sets of electric-driven double-sleeper tamping devices, one set of which performs tamping operations on the ballasts on both sides of the left rail, and the other set of which performs tamping operations on the ballasts on both sides of the right rail. The control device controls the speed of the first motor 41 and the second motor 42 in different operating states so that the vibration frequency is unified to reduce the noise generated by the tamping vehicle during the tamping operation.

[0070] Please refer to Figure 1 and Figure 2 An electric-driven double-sleeper tamping device includes a box body 1, a guide column 2, a lifting drive device 3, a vibration drive mechanism 4 and an opening and closing drive device 5.

[0071] Specifically, the lifting drive device 3 is arranged on the top of the box body 1, and the guide column 2 is arranged through the box body 1 along the height direction of the box body 1. The box body 1 is driven to move up and down along the guide column 2 by the lifting drive device 3. The vibration drive mechanism 4 is arranged in the box body 1, and the vibration drive mechanism 4 is connected to the control device. The operation of the vibration drive mechanism 4 is controlled by the control device. The vibration drive mechanism 4 includes a first motor 41 and a second motor 42 symmetrically arranged on both sides of the box body 1. The output end of the first motor 41 is connected to the first eccentric shaft 43, and the output end of the second motor 42 is connected to the second eccentric shaft 44. The first eccentric shaft 43 and the second eccentric shaft 44 are both installed on the box body through bearings. On the bearing seat of the box body 1, one end of the opening and closing drive device 5 is connected to the first eccentric shaft 43 and the second eccentric shaft 44 through a bearing, and the first eccentric shaft 43 is driven to rotate by the first motor 41, and the second eccentric shaft 44 is driven to rotate by the second motor 42, thereby driving the opening and closing drive device 5 to operate, and the other end of the opening and closing drive device 5 is connected to the pick arm 6 through a pin shaft, and the pick arm 6 is hinged to the box body 1. The operation of the opening and closing drive device 5 drives the pick arm 6 to rotate around the box body 1, so that the tamping pick 7 forms a clamping action, and the lifting drive device 3, the vibration drive mechanism 4, and the opening and closing drive device 5 are all connected to the control device, and the operating states of the three are controlled by the control device.

[0072] It should be noted that, in this embodiment, the use of two motors reduces the power, volume and weight of a single motor, so as to improve the reliability of motor installation and extend the service life of the motor.

[0073] The electrically driven double-sleeper tamping device arranged in the above manner drives the first eccentric shaft 43 and the second eccentric shaft 44 respectively by arranging the first motor 41 and the second motor 42 to realize different rotation speeds in different stages of the operation process, thereby realizing the adjustment of the tamping operation frequency, which can both meet the operation requirements and reduce noise.

[0074] In the above embodiment, the first motor 41 and the second motor 42 are axial flux motors.

[0075] It should be noted that the first motor 41 and the second motor 42 are axial flux motors, so that the vertical impact force when the tamping device is inserted downward will not affect the air gap of the first motor 41 and the second motor 42, thereby avoiding damage to the first motor 41 and the second motor 42.

[0076] Please refer to Figure 3 and Figure 4 The lifting drive device 3 is fixed to the top of the box body 1 through a pin shaft.

[0077] It is understandable that an interface is provided on the top of the box 1, which can be connected to the lifting drive device 3. The utility model adopts a pin connection method, a single earring is provided on the lifting drive device 3, and a U-shaped structure is provided on the box 1, and the two are connected by a pin. The single earring is provided with a joint bearing, which can adapt to the non-parallel situation during the lifting and lowering process caused by manufacturing and installation differences. Compared with the existing structure using a threaded connection ball bearing method, the structure of the utility model is simpler and more reliable, does not require gap adjustment, has no threaded connection, and will not cause thread slippage failure.

[0078] Please refer to Figure 5 The opening and closing driving device 5 is provided with a pressure sensor and a linear displacement sensor 8 connected to the control device, and the linear displacement sensor 8 is set to be built-in or external.

[0079] It should be noted that a pressure sensor and a linear displacement sensor 8 are provided on the opening and closing driving device 5 , and the clamping pressure of the tamping pick 7 is measured by the pressure sensor, and the clamping stroke is obtained by measuring the linear displacement sensor 8 .

[0080] There is no limitation on the way in which the opening and closing driving device 5 obtains the clamping stroke, and the clamping stroke can also be obtained by setting an ultrasonic sensor or a laser sensor on the opening and closing driving device 5 .

[0081] In the above embodiment, the opening and closing driving device 5 includes a cylinder body 51 and a piston rod 52 . The piston rod 52 is disposed in the cylinder body 51 . The linear displacement sensor 8 is disposed in the cylinder body 51 , or the linear displacement sensor 8 is disposed outside the cylinder body 51 .

[0082] It should be noted that the linear displacement sensor 8 can be installed inside or outside the opening and closing drive device 5. When the opening and closing drive device 5 generates a telescopic movement, the linear displacement sensor 8 can measure the telescopic amount of the opening and closing drive device 5, thereby calculating the displacement of the lower end of the tamping pick 7.

[0083] Among them, in actual life, there is no restriction on the installation position and type of the linear displacement sensor 8, as long as the above-mentioned technical effect can be achieved.

[0084] In the above case, the first eccentric shaft 43 includes a first eccentric section 431 and a first concentric section 432. The first eccentric section 431 is connected to the opening and closing drive device 5 through a bearing. The first concentric section 432 is arranged at both ends of the first eccentric section 431. The first concentric section 432 is installed on the middle bearing seat 11 of the box body and the end bearing seat 12 of the box body through bearings.

[0085] It can be understood that the first eccentric segment 431 is directly connected to the opening and closing drive device 5 via a bearing, and the power output by the first motor 41 is transmitted to the opening and closing drive device 5 via the first eccentric segment 431 to control the operating state of the opening and closing drive device 5.

[0086] Furthermore, the second eccentric shaft 44 includes a second eccentric segment 441 and a second concentric segment 442. The second eccentric segment 441 is connected to the opening and closing drive device 5 through a bearing. The second concentric segment 442 is arranged at both ends of the second eccentric segment 441. The second concentric segment 442 is installed on the middle bearing seat 11 and the end bearing seat 12 of the box body through bearings.

[0087] It should be noted that the second eccentric segment 441 is directly connected to the opening and closing drive device 5 via a bearing, and the power output by the second motor 42 is transmitted to the opening and closing drive device 5 via the second eccentric segment 441 to control the operating state of the opening and closing drive device 5.

[0088] In the above embodiment, the opening and closing drive device 5 includes a first external opening and closing drive device 53, a second external opening and closing drive device 55, a first internal opening and closing drive device 54 and a second internal opening and closing drive device 56, one end of the first external opening and closing drive device 53 is connected to the first eccentric segment 431 through a bearing, and the other end of the first external opening and closing drive device 53 is connected to the pick arm 6 through a pin shaft, one end of the first internal opening and closing drive device 54 is connected to the first eccentric segment 431 through a bearing, and the other end of the first internal opening and closing drive device 54 is connected to the pick arm 6 through a pin shaft, one end of the second external opening and closing drive device 55 is connected to the second eccentric segment 441 through a bearing, and the other end of the second external opening and closing drive device 55 is connected to the pick arm 6 through a pin shaft, one end of the second internal opening and closing drive device 56 is connected to the second eccentric segment 441 through a bearing, and the other end of the second internal opening and closing drive device 56 is connected to the pick arm 6 through a pin shaft.

[0089] It can be understood that the pick arm 6 is driven to move through the cooperation of the first external opening and closing drive device 53, the second external opening and closing drive device 55, the first internal opening and closing drive device 54 and the second internal opening and closing drive device 56. The first external opening and closing drive device 53, the second external opening and closing drive device 55, the first internal opening and closing drive device 54 and the second internal opening and closing drive device 56 are all provided with a linear displacement sensor 8. The linear displacement sensor 8 can measure the extension and contraction amount of the first external opening and closing drive device 53, the second external opening and closing drive device 55, the first internal opening and closing drive device 54 and the second internal opening and closing drive device 56, thereby calculating the displacement of the lower end of the tamping pick 7, that is, the clamping amount of the tamping operation.

[0090] On the basis of the above embodiment, the pick arm 6 includes a first outer pick arm 61, a second outer pick arm 63, a first inner pick arm 62 and a second inner pick arm 64, one end of the first outer pick arm 61 is connected to the first outer opening and closing drive device 53, one end of the first inner pick arm 62 is connected to the first inner opening and closing drive device 54, one end of the second outer pick arm 63 is connected to the second outer opening and closing drive device 55, and one end of the second outer pick arm 63 is connected to the second inner opening and closing drive device 56.

[0091] It should be noted that the first outer pick arm 61, the second outer pick arm 63, the first inner pick arm 62 and the second inner pick arm 64 are hinged with the box body 1 in the middle, and can rotate around the box body 1 to form a clamping action relative to each other between the tamping picks 7. In the existing structure, the initial angle of the first outer pick arm 61 and the first inner pick arm 62, the second outer pick arm 63 and the second inner pick arm 64 after installation is about 8°-9°, which is adjusted to 0°-3° in the present embodiment, so that when the tamping pick 7 is inserted downward, the angle between the axis of the tamping pick 7 and the vertical direction is smaller, so as to reduce the impact resistance when the tamping pick 7 is inserted downward and the stress formed on the tamping.

[0092] In the above embodiment, the tamping pick 7 includes a first outer tamping pick 71, a second outer tamping pick 73, a first inner tamping pick 72 and a second inner tamping pick 74. The first outer tamping pick 71 is connected to the other end of the first outer pick arm 61, the first inner tamping pick 72 is connected to the other end of the first inner pick arm 62, the second outer tamping pick 73 is connected to the other end of the second outer pick arm 63, and the second inner tamping pick 74 is connected to the other end of the second inner pick arm 64.

[0093] It can be understood that the installation angles of the first outer pick arm 61 and the first inner pick arm 62, the second outer pick arm 63 and the second inner pick arm 64 have been adjusted compared with the existing structure, so that when the first outer tamping pick 71, the second outer tamping pick 73, the first inner tamping pick 72 and the second inner tamping pick 74 are inserted downward, the angle between their axes and the vertical direction is smaller, so as to reduce the impact resistance when the first outer tamping pick 71, the second outer tamping pick 73, the first inner tamping pick 72 and the second inner tamping pick 74 are inserted downward and the stress formed on the first outer tamping pick 71, the second outer tamping pick 73, the first inner tamping pick 72 and the second inner tamping pick 74.

[0094] As a preferred embodiment, an angle sensing device 9 is provided on the box body 1 and the pick arm 6 to measure the rotation angle of the pick arm 6. The angle sensing device 9 includes an external angle sensor 91 and an internal angle sensor 92. The external angle sensor 91 is arranged between the box body 1 and the first external pick arm 61, and between the box body 1 and the second external pick arm 63. The internal angle sensor 92 is arranged between the box body 1 and the first internal pick arm 62, and between the box body 1 and the second internal pick arm 64.

[0095] It should be noted that when the first outer pick arm 61, the first inner pick arm 62, the second outer pick arm 63 and the second inner pick arm 64 rotate relative to the box body 1, the rotation angle can be measured by the inner angle sensor 92 and the outer angle sensor 91, so as to calculate the displacement of the lower ends of the first outer tamping pick 71, the second outer tamping pick 73, the first inner tamping pick 72 and the second inner tamping pick 74, so as to calculate the relative displacement of the first outer tamping pick 71, the second outer tamping pick 73, the first inner tamping pick 72 and the second inner tamping pick 74, that is, the clamping amount of the tamping operation.

[0096] Please refer to Figure 1 , Figure 4 and Figure 5 At least two guide posts 2 are provided, and at least two guide posts 2 are symmetrically arranged on the box body 1.

[0097] It can be understood that the guide column 2 passes through the box body 1 in the vertical direction, so that the tamping device as a whole can move up and down along the guide column 2.

[0098] On the basis of the above-mentioned embodiments, a wire sensor is provided between the tamping vehicle and the electric-driven double-sleeper tamping device, or a linear displacement sensor 8 is provided on the lifting drive device.

[0099] It should be noted that a wire sensor is also provided between the tamping vehicle and the box body 1, or a linear displacement sensor 8 is installed in the lifting drive device 3 to obtain the height position of the tamping pick 7, so as to determine whether the device is in an operation preparation state, a lowering state or a clamping state, thereby controlling the operating state of the device through the control device.

[0100] In summary, the electric-driven double-sleeper tamping device provided by the utility model is also provided with a wire sensor between the tamping vehicle and the housing 1, or a linear displacement sensor is installed in the lifting drive device 3 to obtain the height position of the tamping pick 7, so as to judge whether the device is in the operation preparation state, the lower insertion state or the clamping state, thereby controlling the operation state of the device through the control device. The height position of the tamping device is obtained by a sensor, and the sensor can be a wire sensor, one end of which is fixed to the tamping vehicle and the other end is fixed to the housing 1 of the tamping device; or a linear displacement sensor 8 is installed in the lifting drive device 3 to measure the extension distance of the lifting drive device 3, and the tamping device is judged to be in the operation preparation state, the lower insertion state or the clamping state through the height position of the tamping device, thereby controlling the motor to run at different speeds through the control device.

[0101] The working principle of the electric-driven double-sleeper tamping device is as follows: the rotation speed and phase of the first motor 41 and the second motor 42 are obtained in real time through the sensors provided by the first motor 41 and the second motor 42, and the first motor 41 and the second motor 42 are controlled by the control device to operate at the same speed, so that the vibration frequency of the electric-driven double-sleeper tamping device is unified, and the rotation phase of the first motor 41 and the second motor 42 is controlled so that the eccentric segments of the eccentric shaft are 180° apart during the rotation process, so as to reduce the vibration of the box body 1. The height position of the electric-driven double-sleeper tamping device is obtained by the linear displacement sensor 8 to judge the state of the electric-driven double-sleeper tamping device, and the first motor 41 and the second motor 42 are controlled by the control device to operate at the same speed, and operate at a low speed when the electric-driven double-sleeper tamping device is ready for operation, accelerate to a high speed during the insertion process of the electric-driven double-sleeper tamping device, reduce the speed to the optimal clamping operation speed during the clamping process after the ballast is inserted, and further reduce the speed to the low speed state during the lifting process when the preparation is ready. The preparation operation speed is lower than the optimal clamping operation speed and lower than the insertion speed. The purpose of the lower preparation operation speed is to reduce the noise of the electric drive double-sleeper tamping device. The lower the speed, the lower the vibration frequency, and the lower the noise generated by the electric drive double-sleeper tamping device. The optimal clamping operation speed is the speed that is most conducive to the flow and compaction of ballast. The purpose of the higher insertion speed is to facilitate the insertion. The higher the speed, the higher the vibration frequency of the tamping pick 7, which is more conducive to penetrating the ballast. Usually, the optimal clamping operation speed is about 2100r / min. By obtaining the data from the sensor, the clamping amount and clamping force of the tamping operation are calculated, and the clamping amount and clamping force are adjusted according to the ballast bed state and the operation start-up amount, so that the line is dense and the density is uniform after tamping.

[0102] In addition to the electric-driven double-sleeper tamping device disclosed in the above embodiments, the utility model also provides a tamping vehicle including the electric-driven double-sleeper tamping device. Figure 7 As shown, each tamping vehicle is equipped with two sets of electric-driven double-sleeper tamping devices, one of which performs tamping operations on the ballasts on both sides of the left rail, and the other performs tamping operations on the ballasts on both sides of the right rail. The speed of the first motor 41 and the second motor 42 in different operating states is controlled by a control device to make the vibration frequency uniform, so as to reduce the noise generated by the tamping vehicle during the tamping operation. The structures of other parts of the tamping vehicle are referred to the prior art and will not be described in detail herein.

[0103] It should be noted that, in this specification, relational terms such as first and second are merely used to distinguish one entity from other entities, but do not necessarily require or imply any actual relationship or order between these entities.

[0104] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0105] The above is a detailed introduction to a tamping vehicle and an electric-driven double-sleeper tamping device provided by the utility model. This article uses specific examples to illustrate the principle and implementation method of the utility model. The description of the above embodiment is only used to help understand the method and core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. An electrically driven double-sleeper tamping device, characterized in that: include: Box body (1); A guide column (2) is arranged to penetrate the box body (1) along the height direction of the box body (1), so that the box body (1) can be lifted and lowered along the guide column (2); A lifting drive device (3) is arranged on the top of the box body (1); A vibration drive mechanism (4) is arranged on the housing (1), the vibration drive mechanism (4) comprising a first motor (41) and a second motor (42) arranged on both sides of the housing (1), the output end of the first motor (41) being connected to a first eccentric shaft (43), the output end of the second motor (42) being connected to a second eccentric shaft (44), and the first eccentric shaft (43) and the second eccentric shaft (44) being both mounted on a bearing seat of the housing (1) via bearings; An opening and closing driving device (5), one end of the opening and closing driving device (5) is connected to the first eccentric shaft (43) and the second eccentric shaft (44) through the bearing, and the other end of the opening and closing driving device (5) is connected to the pick arm (6) through a pin shaft, a tamping pick (7) is installed at the bottom of the pick arm (6), and the pick arm (6) is hinged to the box body (1); The lifting drive device (3), the vibration drive mechanism (4), and the opening and closing drive device (5) are all connected to the control device.

2. The electric driven double-sleeper tamping device according to claim 1, characterized in that: The first motor (41) and the second motor (42) are axial flux motors.

3. The electric driven double-sleeper tamping device according to claim 2, characterized in that: The lifting drive device (3) is fixed to the top of the box body (1) via a pin shaft.

4. The electric driven double-sleeper tamping device according to claim 3, characterized in that: The opening and closing drive device (5) is provided with a pressure sensor and a linear displacement sensor (8) connected to the control device, and the linear displacement sensor (8) is configured as a built-in type or an external type.

5. The electric-driven double-sleeper tamping device according to claim 4, characterized in that: The opening and closing driving device (5) comprises: Cylinder body (51); The piston rod (52) is arranged in the cylinder body (51), and the linear displacement sensor (8) is arranged in the cylinder body (51), or the linear displacement sensor (8) is arranged outside the cylinder body (51).

6. The electric driven double-sleeper tamping device according to claim 5, characterized in that: The first eccentric shaft (43) comprises: A first eccentric section (431) connected to the opening and closing driving device (5) via the bearing; The first concentric section (432) is arranged at both ends of the first eccentric section (431), and the first concentric section (432) is installed on the middle bearing seat (11) of the box body and the end bearing seat (12) of the box body through the bearing.

7. The electric driven double-sleeper tamping device according to claim 6, characterized in that: The second eccentric shaft (44) comprises: A second eccentric section (441) connected to the opening and closing driving device (5) via the bearing; The second concentric section (442) is arranged at both ends of the second eccentric section (441), and the second concentric section (442) is installed on the middle bearing seat (11) of the box body and the end bearing seat (12) of the box body through the bearing.

8. The electric driven double-sleeper tamping device according to claim 7, characterized in that: The opening and closing driving device (5) comprises: A first external opening and closing driving device (53), one end of the first external opening and closing driving device (53) is connected to the first eccentric section (431) via the bearing, and the other end of the first external opening and closing driving device (53) is connected to the pickaxe arm (6) via the pin shaft; A first internal opening and closing driving device (54), one end of the first internal opening and closing driving device (54) is connected to the first eccentric section (431) via the bearing, and the other end of the first internal opening and closing driving device (54) is connected to the pickaxe arm (6) via the pin shaft; A second external opening and closing driving device (55), one end of the second external opening and closing driving device (55) is connected to the second eccentric section (441) via the bearing, and the other end of the second external opening and closing driving device (55) is connected to the pickaxe arm (6) via the pin shaft; A second internal opening and closing driving device (56), one end of the second internal opening and closing driving device (56) is connected to the second eccentric section (441) through the bearing, and the other end of the second internal opening and closing driving device (56) is connected to the pickaxe arm (6) through the pin shaft.

9. The electric driven double-sleeper tamping device according to claim 8, characterized in that: The pickaxe arm (6) comprises: A first outer pick arm (61), one end of the first outer pick arm (61) being connected to the first outer opening and closing driving device (53); A first inner pick arm (62), one end of the first inner pick arm (62) being connected to the first inner opening and closing driving device (54); A second outer pick arm (63), one end of the second outer pick arm (63) being connected to the second outer opening and closing driving device (55); A second inner pick arm (64), one end of the second outer pick arm (63) is connected to the second inner opening and closing driving device (56).

10. The electric-driven double-sleeper tamping device according to claim 9, characterized in that: The tamping pick (7) comprises: A first external ramming pick (71) connected to the other end of the first external pick arm (61); A first inner tamping pick (72) connected to the other end of the first inner tamping pick arm (62); A second external ramming pick (73) connected to the other end of the second external pick arm (63); The second inner tamping pick (74) is connected to the other end of the second inner tamping pick arm (64).

11. The electric driven double-sleeper tamping device according to claim 10, characterized in that: The box body (1) and the pickaxe arm (6) are both provided with an angle sensor (9) to measure the rotation angle of the pickaxe arm (6), and the angle sensor (9) comprises: An external angle sensor (91) is provided between the box (1) and the first external pick arm (61), and between the box (1) and the second external pick arm (63); The inner angle sensor (92) is arranged between the box body (1) and the first inner pick arm (62), and between the box body (1) and the second inner pick arm (64).

12. The electric driven double-sleeper tamping device according to claim 11, characterized in that: At least two guide posts (2) are provided, and at least two guide posts (2) are symmetrically arranged on the box body (1).

13. A tamping vehicle, characterized in that: It comprises two sets of electrically driven double-sleeper tamping devices as described in any one of claims 4-12.

14. The tamping vehicle according to claim 13, characterized in that A wire sensor is provided between the tamping vehicle and the electric-driven double-sleeper tamping device, or the linear displacement sensor (8) is provided on the lifting drive device (3).

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