Rotating disc type rail transfer device for rail logistics vehicle

Abstract

The invention relates to a rotating disc type rail transfer device for a rail logistics vehicle, and belongs to the technical field of rail transfer devices. Comprising a mounting bottom plate, a fixed seat is fixedly arranged at the upper end of the mounting bottom plate, a rotating seat is rotationally arranged in the fixed seat, the rotating seat comprises a movable supporting seat on the lower side and a rotating plate on the upper side, a transverse first connecting rail and a longitudinal first connecting rail are arranged on the upper end face of the fixed seat, and a second connecting rail is arranged on the upper end face of the rotating plate; a circle of supporting sliding blocks in a circular array are arranged on the lower end face of the rotating plate, the supporting sliding blocks comprise electric rollers, and the electric rollers are in rolling contact with the mounting bottom plate; a circle of locking connecting blocks in a circular array are arranged on the outer edge of the lower end face of the rotating plate, and a locking limiting mechanism used for locking the fixed base and the rotating base is arranged between the locking connecting blocks and the fixed base. The problem that a track of an existing track transfer device vibrates seriously when passing through a track transfer vehicle is solved.

Description

Technical Field

[0001] The present invention belongs to the technical field of track changers, and in particular relates to a turntable track changer for a rail logistics vehicle. Background Art

[0002] Railcar track changers have a wide range of applications and are mainly used for cross-border transportation of rail vehicles such as high-speed trains and freight trains. They can be installed at railway borders or where different track gauges meet, allowing trains to quickly change tracks without stopping, thereby achieving rapid customs clearance and improving transportation efficiency.

[0003] Most existing track changers have four symmetrical grooves at the intersection of the tracks to allow the wheel rims to pass through. When such tracks pass through the track changer, large vibrations will be generated, resulting in unstable cargo loading or loose fasteners, poor contact of electrical components, etc.; for this reason, the present application designs a turntable track changer for rail logistics vehicles to solve the above problems. Summary of the invention

[0004] The present invention overcomes the shortcomings of the prior art and proposes a turntable track changer for a rail logistics vehicle, thereby solving the problem that the track of the current track changer vibrates greatly when the track changer passes through the track changer.

[0005] In order to achieve the above object, the present invention is implemented through the following technical solutions.

[0006] A turntable track changer for a rail logistics vehicle comprises a mounting base plate, a fixed seat is fixedly arranged at the upper end of the mounting base plate, a rotating seat is rotatably arranged inside the fixed seat, the rotating seat comprises a movable supporting seat on the lower side and a rotating plate on the upper side, a first transverse and longitudinal connecting rail is arranged on the upper end surface of the fixed seat, and a second connecting rail is arranged on the upper end surface of the rotating plate; a circle of supporting sliding blocks in a circular array is arranged on the lower end surface of the rotating plate, the supporting sliding blocks comprise electric rollers, and the electric rollers are in rolling contact with the mounting base plate; a circle of locking connecting blocks in a circular array are arranged at the outer edge of the lower end surface of the rotating plate, and a locking limiting mechanism for locking the fixed seat and the rotating seat is arranged between the locking connecting block and the fixed seat.

[0007] Furthermore, the fixed seat is a cylindrical structure with its upper and lower ends kept open, and two groups of transverse first connecting rails and two groups of longitudinal first connecting rails are fixedly arranged on the upper end surface of the fixed seat, and each group includes two mutually parallel first connecting rails; the two groups of transverse first connecting rails are symmetrically fixedly arranged on the left and right sides of the upper end opening of the fixed seat, and the transverse first connecting rails are horizontally arranged along the left and right directions; the two groups of longitudinal first connecting rails are symmetrically fixedly arranged on the front and rear sides of the upper end opening of the fixed seat, and the longitudinal first connecting rails are horizontally arranged along the front and rear directions; a rotating plate is rotatably arranged on the inner side of the upper end opening of the fixed seat; and two parallel second connecting rails are fixedly arranged on the upper end surface of the rotating plate.

[0008] Furthermore, a circle of circular rotating grooves is provided on the inner wall of the fixed seat, and a plurality of locking connecting blocks extend into the rotating groove at one end away from the rotating plate; the locking limit mechanism is provided between the lower end surface of the locking connecting block and the inner bottom surface of the rotating groove; the locking limit mechanism includes an electric locking protrusion and a locking lifting assembly, wherein the electric locking protrusion is provided at the lower end surface of the locking connecting block, and the locking lifting assembly is provided at the inner bottom surface of the rotating groove.

[0009] Furthermore, a limiting groove with an open upper end is provided on the inner bottom surface of the rotating groove, the limiting groove is located below the electric locking protrusion, and the locking lifting assembly is provided inside the limiting groove; the locking lifting assembly includes a locking seat and a locking spring, a circle of spring grooves is provided on the inner wall of the limiting groove, a locking spring is provided inside the spring groove, a locking seat is provided at the outer opening of the spring groove, and a hemispherical locking pin is provided at the end of the locking seat away from the locking spring.

[0010] Furthermore, the electric locking protrusion includes an electric telescopic rod, a locking connecting block, and a locking side block; the electric telescopic rod is fixedly arranged inside the locking connecting block, and a locking connecting block is fixedly arranged on the end of the piston rod on the lower side of the electric telescopic rod; symmetrical first mounting grooves are arranged on both sides of the outer side surface of the locking connecting block, and a locking side block is slidably arranged inside each first mounting groove, a locking groove is arranged on the outer arc surface of each locking side block, and two symmetrical locking grooves are arranged on the outer side surface of the locking connecting block; a lifting spring is arranged between the locking side block and the locking connecting block.

[0011] Furthermore, the supporting sliding block is an L-shaped block structure, including a vertical section and a horizontal section, the upper end of the vertical section is fixedly connected to one end of the lower end surface of the horizontal section, and the upper end of the horizontal section is fixedly connected to the lower end surface of the rotating plate; a vertical supporting shaft is fixedly arranged on the lower end surface of the horizontal section, the electric roller is arranged at the lower end of the supporting shaft, an air intake device is arranged inside the horizontal section, an air inlet is arranged on the side wall of the horizontal section, and an air jet is arranged on the lower end surface of the vertical section, and air is drawn in from the air inlet through the air intake device and blown out from the air jet.

[0012] Furthermore, a coaxial first retaining ring and a second retaining ring are fixedly provided on the mounting base, wherein the first retaining ring is located on the inner side of the second retaining ring; a circular ring-shaped anti-slip pad is fixedly provided on the upper end surface of the mounting base between the first retaining ring and the second retaining ring, the electric roller is located between the first retaining ring and the second retaining ring, and all the electric rollers maintain sliding contact with the anti-slip pad; the air jet is downward toward the anti-slip pad.

[0013] Furthermore, three circular array of snap-in grooves are provided at the lower end of the fixing seat, and a detachable dust box is snap-in inside each snap-in groove; the dust box is a square box body structure, and a dust collecting port is provided on the lower side of the inner end of the dust box, and the dust collecting port is connected with the interior of the dust box; a plurality of filter holes are provided on the left and right side walls of the dust box; a horizontal toggle card plate is provided at the upper end of the outer end of the dust box, an avoidance groove is provided below the toggle card plate, and a lower triangular snap-in block is fixedly provided on the upper end surface of the toggle card plate; a toggle plate is provided at the outer end of the toggle card plate; an upper triangular snap-in groove is provided at the inner top surface of the snap-in groove, and the lower triangular snap-in block is snap-in with the upper triangular snap-in groove.

[0014] Furthermore, three ventilation grooves are arranged on the second baffle ring, and the three ventilation grooves respectively correspond to the dust collecting openings of the three dust collecting boxes, and the dust collecting box is connected with the space between the first baffle ring and the second baffle ring through the ventilation grooves.

[0015] Furthermore, a circle of circular array buffer support mechanism is also provided on the lower end surface of the rotating plate, and a circle of buffer support mechanism is located on the inner side of a circle of supporting sliding blocks; the buffer support mechanism includes a sliding bottom plate, a fixed top plate, a shock-absorbing spring, and a damping pad, and the fixed top plate is fixedly arranged at the lower end surface of the rotating plate, and the sliding bottom plate is located below the fixed top plate; a plurality of sliding balls are rotatably arranged on the lower end surface of the sliding bottom plate, and the sliding balls are in rolling contact with the upper end surface of the mounting bottom plate; a vertical first support column is fixedly arranged on the upper end surface of the sliding bottom plate, and a vertical second support column is fixedly arranged on the lower end surface of the fixed top plate, and a damping pad is arranged between the first support column and the second support column; a shock-absorbing spring is sleeved on the outer side of the first support column and the second support column, and the upper and lower ends of the shock-absorbing spring are fixedly connected to the fixed top plate and the sliding bottom plate respectively; an annular baffle is also fixedly arranged on the upper end surface of the mounting bottom plate, and the outer cylindrical surface of the sliding bottom plate maintains sliding contact with the inner wall of the baffle.

[0016] The beneficial effects of the present invention compared with the prior art are as follows: In the present invention, the rotating seat and the fixed seat are locked by a locking limit mechanism, which is convenient for fixing the rotating seat, improving the accuracy of docking the first connecting rail and the second connecting rail, and thus realizing the function of stable docking of the switching rails; through the dust-proof cooperation between the dust collecting box and the air inlet device, the electric roller is convenient for stable operation on the anti-slip pad, and the effect of stable operation of the device is improved, and thus the function of track changing of the track changer can be realized; through the buffering support cooperation between the buffering support mechanism and the sliding ball, it is convenient to improve the buffering and vibration absorption capacity of the device, and improve the stability of the track vehicle running and changing tracks, and thus the function of stable operation of the track changer can be realized, and finally the problem of the track changer being subjected to vibration and reducing the track alignment accuracy is solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described in detail below in conjunction with the accompanying drawings: Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 The internal structure of the present invention is shown in FIG. Figure 1 ; Figure 3 The internal structure of the present invention is shown in FIG. Figure 2 ; Figure 4 is a schematic diagram of the connection between the locking connection block and the locking limit mechanism; Figure 5 It is a structural diagram of the locking limit mechanism; Figure 6 It is a schematic diagram of the connection between the locking side block, the movable sliding block and the lifting spring; Figure 7 It is a schematic diagram of the connection between the locking link block, the movable sliding block and the lifting spring; Figure 8 This is a schematic diagram of the connection between the supporting sliding block and the first retaining ring, the second retaining ring, and the dust collecting box. Figure 1 ; Fig. 9 This is a schematic diagram of the connection between the supporting sliding block and the first retaining ring, the second retaining ring, and the dust collecting box. Figure 2 ; Fig.10 It is a schematic diagram of the structure of the supporting sliding block; Fig.11 It is a schematic diagram of the structure of the dust box; Fig.12 It is a structural schematic diagram of a buffer support mechanism; Among them, 1 is the installation base plate, 2 is the fixed seat, 3 is the rotating seat, 4 is the dust collecting box, 5 is the first connecting rail, 6 is the second connecting rail, 7 is the installation protrusion, 8 is the supporting sliding block, 9 is the baffle, 10 is the locking connecting block, 11 is the buffer support mechanism, 12 is the movable supporting seat, 13 is the electric locking protrusion, 14 is the locking lifting assembly, 15 is the locking spring, 16 is the locking seat, 17 is the locking connecting block, 18 is the locking side block, 19 is the locking groove, 20 is the movable sliding block, 21 is the lifting spring, 22 is the first retaining ring, 23 is the anti-slip pad, 24 is the second retaining ring, 25 is the ventilation groove, 26 is the air inlet device, 27 is the air jet, 28 is the electric roller, 29 is the toggle card plate, 30 is the toggle plate, 31 is the filter hole, 32 is the sliding base plate, 33 is the shock-absorbing spring, and 34 is the damping pad. DETAILED DESCRIPTION

[0018] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the present invention is further described in detail in conjunction with the embodiments and the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. The technical solutions of the present invention are described in detail below in conjunction with the embodiments and the accompanying drawings, but the scope of protection is not limited thereto.

[0019] like Figure 1 As shown in FIG. 12 , the present invention provides a turntable track changer for a rail logistics vehicle, comprising a mounting base plate 1, a fixed seat 2 is fixedly arranged at the upper end of the mounting base plate 1, a rotating seat 3 is rotatably arranged inside the fixed seat 2, the rotating seat 3 comprises a movable supporting seat 12 on the lower side and a rotating plate on the upper side, a first transverse and longitudinal connecting rail 5 is arranged on the upper end surface of the fixed seat 2, and a second connecting rail 6 is arranged on the upper end surface of the rotating plate; a circle of supporting sliding blocks 8 in a circular array is arranged on the lower end surface of the rotating plate, the supporting sliding blocks 8 include electric rollers 28, and the electric rollers 28 are in rolling contact with the mounting base plate 1; a circle of locking connecting blocks 10 in a circular array are arranged at the outer edge of the lower end surface of the rotating plate, and a locking limit mechanism for locking the fixed seat 2 and the rotating seat 3 is arranged between the locking connecting block 10 and the fixed seat 2.

[0020] The mounting base plate 1 is a horizontally arranged circular plate-shaped structure, and four mounting protrusions 7 are fixedly arranged on the outer cylindrical surface of the mounting base plate 1, and the four mounting protrusions 7 are arranged in a square array. A plurality of fastening bolts are arranged on each mounting protrusion 7, and the mounting base plate 1 is fixed to the installation ground by the fastening bolts.

[0021] The fixing seat 2 is a cylindrical structure with both ends open, and the lower end surface of the fixing seat 2 is fixedly connected to the upper end surface of the mounting base 1. Two groups of transverse first connecting rails 5 and two groups of longitudinal first connecting rails 5 are fixedly arranged on the upper end surface of the fixing seat 2, and each group includes two mutually parallel first connecting rails 5; wherein the two groups of transverse first connecting rails 5 are symmetrically fixedly arranged on the left and right sides of the upper end opening of the fixing seat 2, and the transverse first connecting rails 5 are arranged horizontally along the left-right direction; the two groups of longitudinal first connecting rails 5 are symmetrically fixedly arranged on the front and rear sides of the upper end opening of the fixing seat 2, and the longitudinal first connecting rails 5 are arranged horizontally along the front-back direction.

[0022] The movable support seat 12 is a vertically arranged cylindrical structure, and the movable support seat 12 is arranged at the inner axis of the fixed seat 2. The rotating plate is a horizontally arranged circular plate-like structure, and the lower end surface of the rotating plate is fixedly connected to the upper end of the movable support seat 12, and the rotating plate is rotatably arranged on the inner side of the upper end opening of the fixed seat 2. Two parallel second connecting rails 6 are fixedly arranged on the upper end surface of the rotating plate. When the rotating seat 3 maintains the initial angle, the two second connecting rails 6 are respectively connected to the two groups of transverse first connecting rails 5; when the rotating seat 3 rotates 90°, the two second connecting rails 6 are respectively connected to the two groups of longitudinal first connecting rails 5.

[0023] The locking connection block 10 is a horizontally arranged square plate-shaped structure, and the length direction of the locking connection block 10 is arranged along the radial direction of the rotating plate. One end of the locking connection block 10 is fixedly connected to the outer edge of the lower end surface of the rotating plate, and the other end of the locking connection block 10 extends to the outside of the rotating plate. A circle of annular rotating grooves is arranged on the inner wall of the fixed seat 2, and one end of the multiple locking connection blocks 10 away from the rotating plate extends into the rotating groove. The locking limit mechanism is arranged between the lower end surface of the locking connection block 10 and the inner bottom surface of the rotating groove.

[0024] The locking and limiting mechanism comprises an electric locking protrusion 13 and a locking lifting assembly 14 , wherein the electric locking protrusion 13 is arranged at the lower end surface of the locking connection block 10 , and the locking lifting assembly 14 is arranged at the inner bottom surface of the rotating groove.

[0025] A limit groove with an upper opening is provided on the inner bottom surface of the rotating groove, and the limit groove is located below the electric locking protrusion 13. The locking lifting assembly 14 is provided inside the limit groove. The locking lifting assembly 14 includes a locking seat 16 and a locking spring 15. A circle of spring grooves in a circular array is provided on the inner wall of the limit groove, and the spring grooves are provided along the radial direction of the limit groove. The locking spring 15 is provided inside the spring groove, and the locking seat 16 is provided at the outer opening of the spring groove. One end of the inner side of the locking spring 15 is fixedly connected to the inner bottom surface of the spring groove, and the other end of the locking spring 15 is fixedly connected to the locking seat 16. A hemispherical locking pin is provided at one end of the locking seat 16 away from the locking spring 15.

[0026] The electric locking protrusion 13 includes an electric telescopic rod, a locking connecting block 17, and a locking side block 18. The electric telescopic rod is fixedly arranged inside the locking connecting block 10, the piston rod of the electric telescopic rod is vertically downward, and the locking connecting block 17 is fixedly arranged at the end of the piston rod of the electric telescopic rod. The locking connecting block 17 is a vertically arranged cylindrical structure, and the outer edge of the lower end surface of the locking connecting block 17 is provided with a rounded corner. Symmetrical first mounting grooves are arranged on both sides of the outer side surface of the locking connecting block 17, and a locking side block 18 is arranged inside each first mounting groove, and the outer arc surface of the locking side block 18 coincides with the outer cylindrical surface of the locking connecting block 17. A locking groove 19 is arranged on the outer arc surface of each locking side block 18, and two symmetrical locking grooves 19 are arranged on the outer side surface of the locking connecting block 17, and four locking grooves 19 are arranged in a circular array around the axis of the locking connecting block 17. Two symmetrical movable sliding blocks 20 are fixedly arranged on one side of each locking side block 18 close to the locking link block 17, and two symmetrical first sliding grooves are arranged at the inner bottom surface of the first mounting groove of the locking link block 17. The two movable sliding blocks 20 on the locking side block 18 are respectively slidably inserted into the two first sliding grooves of the locking link block 17. A second mounting groove is arranged on the end surface of one side of each locking side block 18 close to the locking link block 17, and a third mounting groove is arranged at the center of the inner bottom surface of the first mounting groove of the locking link block 17. The third mounting groove is located between the two first sliding grooves, and the second mounting groove corresponds to the third mounting groove. Two common lifting springs 21 are arranged inside the second mounting groove of the locking side block 18 and the third mounting groove of the locking link block 17, one end of the lifting spring 21 is fixedly connected to the inner bottom surface of the second mounting groove, and the other end of the lifting spring 21 is fixedly connected to the inner bottom surface of the third mounting groove.

[0027] When the rotating seat 3 is rotating, the electric telescopic rod is in a contracted state, and the locking link 17 and the locking side block 18 are out of the limit groove. When the rotating seat 3 is completely rotated, the locking link 17 corresponds to the limit groove up and down, and the piston rod of the electric telescopic rod is controlled to extend, so that the locking link 17 and the locking side block 18 are inserted into the limit groove. During the insertion of the locking link 17 and the locking side block 18, the two locking side blocks 18 slide inward under the action of the limit groove and compress the lifting spring 21, thereby ensuring that the locking link 17 and the locking side block 18 can be smoothly inserted into the limit groove. After the locking link 17 and the locking side block 18 are inserted into the limit groove, the locking pins on the four locking seats 16 are inserted into the four locking grooves 19 on the locking link 17 and the locking side block 18, and the locking link 17 and the locking side block 18 are abutted by the four lifting springs 21, thereby completing the fixed locking of the rotating seat 3. At the same time, the two locking side blocks 18 are in close contact with the inner wall of the limit groove under the action of the lifting spring 21, thereby providing a buffer for the locking part and preventing the locking limit mechanism from vibrating with the device and affecting the carrying stability of the track changer.

[0028] Three circular arrays of snap-in grooves are provided at the lower end of the fixing seat 2, and the snap-in grooves are connected with the inside and outside of the fixing seat 2. A detachable dust box 4 is snap-into each snap-in groove. The dust box 4 is a square box structure, and a dust collecting port is provided at the lower side of one inner end of the dust box 4, and the dust collecting port is connected with the inside of the dust box 4. A plurality of filter holes 31 are provided on the left and right side walls of the dust box 4. A horizontal toggle card plate 29 is provided at the upper end of one outer end of the dust box 4, and an avoidance groove is provided below the toggle card plate 29, and a lower triangular snap-in block is fixedly provided on the upper end surface of the toggle card plate 29. A toggle plate 30 is provided at the outer end of the toggle card plate 29. An upper triangular snap-in groove is provided at the inner top surface of the snap-in groove, and the lower triangular snap-in block is snap-into the upper triangular snap-in groove.

[0029] When the dust box 4 is inserted into the clamping groove, the lower triangular clamping block on the dust box 4 is clamped with the upper triangular clamping groove, and the dust box 4 cannot be removed from the clamping groove. When the dial plate 30 is pressed downward, the clamping plate 29 is turned downward, and the lower triangular clamping block is disengaged from the upper triangular clamping groove, and the dust box 4 can be pulled out of the clamping groove. When the dust box 4 is inserted into the clamping groove again, the lower triangular clamping block slides and contacts with the inclined surface of the upper triangular clamping groove, thereby ensuring that the dust box 4 can be smoothly inserted into the clamping groove.

[0030] The supporting sliding block 8 is an L-shaped block structure, including a vertical section and a horizontal section. The upper end of the vertical section is fixedly connected to one end of the lower end surface of the horizontal section, and the upper end of the horizontal section is fixedly connected to the lower end surface of the rotating plate. A vertical supporting shaft is fixedly arranged on the lower end surface of the horizontal section, and the electric roller 28 is arranged at the lower end of the supporting shaft, and the axis of the electric roller 28 is arranged along the radial direction of the rotating plate. An air inlet device 26 is arranged inside the horizontal section, an air inlet is arranged on the side wall of the horizontal section, and an air jet 27 is arranged on the lower end surface of the vertical section. The air is drawn in from the air inlet through the air inlet device 26 and blown out from the air jet 27.

[0031] A coaxial first retaining ring 22 and a second retaining ring 24 are fixedly arranged on the mounting base 1, wherein the first retaining ring 22 is located inside the second retaining ring 24, and the second retaining ring 24 is in contact with the lower end of the inner wall of the fixing seat 2. A circular anti-skid pad 23 is fixedly arranged on the upper end surface of the mounting base 1 between the first retaining ring 22 and the second retaining ring 24, and the electric roller 28 is located between the first retaining ring 22 and the second retaining ring 24, and all the electric rollers 28 are in sliding contact with the anti-skid pad 23. Three ventilation grooves 25 are arranged on the second retaining ring 24, and the three ventilation grooves 25 correspond to the dust collecting ports of the three dust collecting boxes 4 respectively, and the dust collecting box 4 is connected with the space between the first retaining ring 22 and the second retaining ring 24 through the ventilation grooves 25. The air jet 27 is downward toward the anti-skid pad 23.

[0032] A circle of buffer support mechanisms 11 in a circular array is also provided on the lower end surface of the rotating plate. The circle of buffer support mechanisms 11 is located on the inner side of a circle of supporting sliding blocks 8 . The buffer support mechanism 11 includes a sliding base plate 32, a fixed top plate, a shock-absorbing spring 33, and a damping pad 34. The fixed top plate and the sliding base plate 32 are both horizontally arranged circular plate structures. The fixed top plate is fixedly arranged at the lower end surface of the rotating plate, and the sliding base plate 32 is located below the fixed top plate; a plurality of sliding balls are rotatably arranged on the lower end surface of the sliding base plate 32, and the sliding balls are in rolling contact with the upper end surface of the mounting base plate 1; a vertical first support column is fixedly arranged on the upper end surface of the sliding base plate 32, and a vertical second support column is fixedly arranged on the lower end surface of the fixed top plate, and a damping pad 34 is arranged between the first support column and the second support column; a shock-absorbing spring 33 is sleeved on the outer side of the first support column and the second support column, and the upper and lower ends of the shock-absorbing spring 33 are respectively fixedly connected to the fixed top plate and the sliding base plate 32. A circular baffle 9 is fixedly provided on the upper end surface of the mounting base plate 1 . The baffle 9 is located inside the first baffle ring 22 , and the outer cylindrical surface of the sliding base plate 32 is in sliding contact with the inner wall of the baffle 9 .

[0033] The present invention also proposes a method for using a turntable track changer for a rail logistics vehicle, comprising the following steps: Step one, first turn on the power supply for the device, then assemble and fix the turntable track changer, and then run the device. At this time, the second connecting rail 6 on the rotating seat 3 is docked with the two sets of transverse first connecting rails 5 on the fixed seat 2. When the two sets of transverse first connecting rails 5 are docked and fixed with the second connecting rails 6, the locking limit mechanism is plugged and locked. Then the rail car running on the transverse first connecting rails 5 drives into the docked second connecting rails 6 until the rail car completely drives into the rotating seat 3.

[0034] Step 2: Then the electric locking protrusion 13 on the locking limit mechanism is retracted upward under the drive of the electric telescopic rod. After the retraction, the locking seat 16 is disengaged from the locking fixation of the locking groove 19. Then the electric roller 28 supporting the lower end of the sliding block 8 is started, so that the electric roller 28 rotates on the anti-slip pad 23, thereby driving the rotating seat 3 in the device to rotate, so that the second connecting rail 6 is disengaged from the docking state with the two sets of transverse first connecting rails 5 until it is turned to dock with the two sets of longitudinal first connecting rails 5. When the second connecting rail 6 is docked with the two sets of longitudinal first connecting rails 5, the electric telescopic rod on the locking limit mechanism lowers the electric locking protrusion 13, and the electric locking protrusion 13 is inserted into the limit groove and locked and fixed.

[0035] Step three, when the electric locking protrusion 13 is inserted into the limiting groove and locked, the locking side blocks 18 on both sides of the electric locking protrusion 13 abut against the side walls of the limiting groove under the lifting action of the lifting spring 21, and when the electric locking protrusion 13 is inserted down to the end of the limiting groove, the locking seat 16 on the locking lifting assembly 14 is pushed out and engaged with the locking groove 19 under the push of the locking spring 15. The setting of the locking limit mechanism can lower the electric locking protrusion 13 and insert it into the limiting groove after the track changer completes the steering, thereby completing the fixed locking of the track changer, thereby improving the stability and accuracy of the track changer docking, and reducing the vibration of the track changer.

[0036] Step 4: At the same time, the sliding base plate 32 on the buffer support mechanism 11 abuts against the mounting base plate 1, and the sliding ball at the bottom of the sliding base plate 32 can drive the buffer support mechanism 11 to move synchronously while rotating the rotating seat 3, so that the buffer support mechanism 11 can operate stably. The setting of the buffer support mechanism 11 can better support the buffer rotating seat 3, reduce the vibration generated when the rotating seat 3 is loaded, and enable the rotating seat 3 to stably load a heavy rail vehicle.

[0037] Step 5: Finally, the air inlet device 26 on the supporting sliding block 8 drives the airflow to blow onto the anti-skid pad 23, and then the airflow brings the dust on the anti-skid pad 23 into the dust box 4. The air inlet device 26 can spray airflow to the air jet 27 facing the anti-skid pad 23, so that the dust on the anti-skid pad 23 is blown into the dust box 4. The setting of the toggle card plate 29 at the side end of the dust box 4 and the lower triangular clamping block can better insert the dust box 4 into the clamping groove, so that the lower triangular clamping block is clamped and fixed with the upper triangular clamping groove, thereby fixing the dust box 4. The setting of the dial plate 30 can better press the toggle card plate 29, so as to facilitate the unlocking of the clamping fixation of the lower triangular clamping block.

[0038] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A turntable track changer for a rail logistics vehicle, characterized in that: The invention comprises a mounting base plate (1), a fixed seat (2) is fixedly arranged at the upper end of the mounting base plate (1), a rotating seat (3) is rotatably arranged inside the fixing base plate (2), the rotating seat (3) comprises a movable supporting seat (12) at the lower side and a rotating plate at the upper side, a first transverse and longitudinal connecting rail (5) is arranged at the upper end surface of the fixing base plate (2), and a second connecting rail (6) is arranged at the upper end surface of the rotating plate; a circle of supporting sliding blocks (8) in a circular array is arranged at the lower end surface of the rotating plate, the supporting sliding blocks (8) comprising electric rollers (28), and the electric rollers (28) are in rolling contact with the mounting base plate (1); a circle of locking connecting blocks (10) in a circular array is arranged at the outer edge of the lower end surface of the rotating plate, and a locking limit mechanism for locking the fixing base (2) and the rotating base (3) is arranged between the locking connecting blocks (10) and the fixing base (2).

2. A turntable track changer for a rail logistics vehicle according to claim 1, characterized in that: The fixed seat (2) is a cylindrical structure with upper and lower ends remaining open. Two groups of transverse first connecting rails (5) and two groups of longitudinal first connecting rails (5) are fixedly arranged on the upper end surface of the fixed seat (2), and each group includes two mutually parallel first connecting rails (5); wherein the two groups of transverse first connecting rails (5) are symmetrically fixedly arranged on the left and right sides of the upper end opening of the fixed seat (2), and the transverse first connecting rails (5) are arranged horizontally along the left-right direction; the two groups of longitudinal first connecting rails (5) are symmetrically fixedly arranged on the front and rear sides of the upper end opening of the fixed seat (2), and the longitudinal first connecting rails (5) are arranged horizontally along the front-back direction; the rotating plate is rotatably arranged inside the upper end opening of the fixed seat (2); and two parallel second connecting rails (6) are fixedly arranged on the upper end surface of the rotating plate.

3. The turntable track changer for a rail logistics vehicle according to claim 1, characterized in that: A circle of annular rotating grooves is arranged on the inner wall of the fixing seat (2), and a plurality of locking connection blocks (10) extend into the rotating groove at one end away from the rotating plate; the locking limit mechanism is arranged between the lower end surface of the locking connection block (10) and the inner bottom surface of the rotating groove; the locking limit mechanism comprises an electric locking protrusion (13) and a locking lifting assembly (14), wherein the electric locking protrusion (13) is arranged at the lower end surface of the locking connection block (10), and the locking lifting assembly (14) is arranged at the inner bottom surface of the rotating groove.

4. A turntable track changer for a rail logistics vehicle according to claim 3, characterized in that: A limit groove with an upper opening is arranged on the inner bottom surface of the rotating groove, the limit groove is located below the electric locking protrusion (13), and the locking lifting assembly (14) is arranged inside the limit groove; the locking lifting assembly (14) comprises a locking seat (16) and a locking spring (15), a circle of spring grooves is arranged on the inner wall of the limit groove, a locking spring (15) is arranged inside the spring groove, a locking seat (16) is arranged at the outer opening of the spring groove, and a hemispherical locking pin is arranged at one end of the locking seat (16) away from the locking spring (15).

5. A turntable track changer for a rail logistics vehicle according to claim 4, characterized in that: The electric locking protrusion (13) comprises an electric telescopic rod, a locking connecting block (17), and a locking side block (18); the electric telescopic rod is fixedly arranged inside the locking connecting block (10), and the locking connecting block (17) is fixedly arranged at the end of the piston rod on the lower side of the electric telescopic rod; symmetrical first installation grooves are arranged on both sides of the outer side surface of the locking connecting block (17), a locking side block (18) is slidably arranged in each first installation groove, a locking groove (19) is arranged on the outer arc surface of each locking side block (18), and two symmetrical locking grooves (19) are arranged on the outer side surface of the locking connecting block (17); a lifting spring (21) is arranged between the locking side block (18) and the locking connecting block (17).

6. The turntable track changer for a rail logistics vehicle according to claim 1, characterized in that: The supporting sliding block (8) is an L-shaped block structure, comprising a vertical section and a horizontal section, the upper end of the vertical section being fixedly connected to one end of the lower end surface of the horizontal section, and the upper end of the horizontal section being fixedly connected to the lower end surface of the rotating plate; a vertical supporting shaft is fixedly arranged on the lower end surface of the horizontal section, the electric roller (28) is arranged at the lower end of the supporting shaft, an air inlet device (26) is arranged inside the horizontal section, an air inlet is arranged on the side wall of the horizontal section, and an air jet (27) is arranged on the lower end surface of the vertical section, and air is drawn in from the air inlet through the air inlet device (26) and blown out from the air jet (27).

7. A turntable track changer for a rail logistics vehicle according to claim 6, characterized in that: A coaxial first retaining ring (22) and a second retaining ring (24) are fixedly arranged on the mounting base plate (1), wherein the first retaining ring (22) is located on the inner side of the second retaining ring (24); a circular ring-shaped anti-skid pad (23) is fixedly arranged on the upper end surface of the mounting base plate (1) between the first retaining ring (22) and the second retaining ring (24); the electric rollers (28) are located between the first retaining ring (22) and the second retaining ring (24), and all the electric rollers (28) maintain sliding contact with the anti-skid pad (23); and the air jet (27) is downwardly directed toward the anti-skid pad (23).

8. The turntable track changer for a rail logistics vehicle according to claim 7, characterized in that: Three circular array snap-in grooves are provided at the lower end of the fixing seat (2), and a detachable dust box (4) is snap-in in each snap-in groove; the dust box (4) is a square box structure, and a dust collecting port is provided at the lower side of one inner end of the dust box (4), and the dust collecting port is communicated with the inside of the dust box (4); a plurality of filter holes (31) are provided on the left and right side walls of the dust box (4); a horizontal toggle card plate (29) is provided at the upper end of one outer end of the dust box (4), an avoidance groove is provided below the toggle card plate (29), and a lower triangular snap-in block is fixedly provided on the upper end surface of the toggle card plate (29); a toggle plate (30) is provided at the outer end of the toggle card plate (29); an upper triangular snap-in groove is provided at the inner top surface of the snap-in groove, and the lower triangular snap-in block is snap-in engaged with the upper triangular snap-in groove.

9. A turntable track changer for a rail logistics vehicle according to claim 8, characterized in that: Three ventilation slots (25) are provided on the second baffle ring (24), the three ventilation slots (25) respectively corresponding to the dust collecting openings of the three dust collecting boxes (4), and the dust collecting box (4) is connected to the space between the first baffle ring (22) and the second baffle ring (24) through the ventilation slots (25).

10. The turntable track changer for a rail logistics vehicle according to claim 1, characterized in that: A circle of circular array buffer support mechanisms (11) is also provided on the lower end surface of the rotating plate, and the circle of buffer support mechanisms (11) is located on the inner side of a circle of supporting sliding blocks (8); the buffer support mechanism (11) comprises a sliding bottom plate (32), a fixed top plate, a shock absorbing spring (33), and a damping pad (34); the fixed top plate is fixedly provided at the lower end surface of the rotating plate, and the sliding bottom plate (32) is located below the fixed top plate; a plurality of sliding balls are rotatably provided on the lower end surface of the sliding bottom plate (32), and the sliding balls are in rolling contact with the upper end surface of the mounting bottom plate (1); A vertical first support column is fixedly arranged on the upper end surface of the fixed top plate (32), a vertical second support column is fixedly arranged on the lower end surface of the fixed top plate, and a damping pad (34) is arranged between the first support column and the second support column; a shock absorbing spring (33) is sleeved on the outer side of the first support column and the second support column, and the upper and lower ends of the shock absorbing spring (33) are respectively fixedly connected to the fixed top plate and the sliding bottom plate (32); an annular baffle (9) is also fixedly arranged on the upper end surface of the mounting bottom plate (1), and the outer cylindrical surface of the sliding bottom plate (32) maintains sliding contact with the inner wall of the baffle (9).

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