Bogie lifting and pushing mechanism

Abstract

The utility model discloses a bogie lifting pushing mechanism which comprises a foundation frame, a vertical guide rail, a servo gear motor and lifting blocking arms, wherein the vertical guide rail, the servo gear motor and the lifting blocking arms are arranged on the foundation frame, and the lifting blocking arms are oppositely arranged. The lifting blocking arm comprises a centering frame, a rack, a clamping structure, an air cylinder, a horizontal guide rail and a sliding block. A rack is arranged on the side face of the centering frame and matched with the servo gear motor to drive the lifting blocking arm to accurately ascend and descend on the vertical guide rail. The air cylinder is horizontally arranged on the centering frame, the rod end of the air cylinder is connected with the sliding block, and the sliding block is matched with a horizontal guide rail fixedly arranged on the centering frame to drive the sliding block to move horizontally. And the clamping structure is vertically fixed on the sliding block. The lifting of the lifting blocking arm is controlled by the servo motor, and the height of the lifting blocking arm is adjustable; the distance between the lifting blocking arms is adjustable; the lifting pushing mechanism can be adjusted according to the positions, perpendicular to the rail direction, of different bogies, and the requirements for axle clamping spaces of the bogies of different models can be met.

Description

Technical Field

[0001] The utility model belongs to the technical field of mechanical devices, relates to a bogie moving device, and particularly relates to a bogie lifting and pushing mechanism. Background Art

[0002] In the overhaul work of railway freight cars, the handling operation of bogies is often involved, including dragging and stopping the bogies of freight cars, motor cars, etc. with a weight of about 8 tons.

[0003] At present, there are mainly two ways to handle bogies: one is mainly manual, which is the most important operation form in the industry at present; the other is an automatic dragging mechanism, which exists in some pilot projects and the overhaul workshops of vehicle depots with a high degree of automation.

[0004] However, the above two current ways of handling bogies have the following problems:

[0005] (1) For manual pushing, it requires a large amount of physical support, with too high labor intensity and poor safety.

[0006] (2) The existing automatic dragging mechanism has low stopping accuracy for bogies with too large mass.

[0007] (3) The existing automatic dragging mechanism has poor flexibility and cannot meet the compatibility requirements for a large number of bogie models.

[0008] (4) For the dragging by the existing AGV cart, charging is troublesome, it occupies a large amount of cross-operation channels, and the stopping accuracy is not high.

[0009] In summary, there is an urgent need to propose a bogie lifting and pushing mechanism to solve the above problems. Summary of the Invention

[0010] Aiming at the deficiencies and defects existing in the above-mentioned prior art, the purpose of the utility model is to provide a bogie lifting and pushing mechanism.

[0011] To achieve the above purpose or other purposes, the technical solution of the utility model is as follows:

[0012] A bogie lifting and pushing mechanism includes a basic frame, a vertical guide rail, a servo reduction motor, and oppositely arranged lifting stop arms provided on the basic frame; the lifting stop arm includes a centering frame, a rack, a clamping structure, a cylinder, a horizontal guide rail, and a slider; a rack is provided on the side of the centering frame, and the rack is engaged with a gear on the shaft end of the servo reduction motor to drive the lifting stop arm to accurately lift on the vertical guide rail; the cylinder is horizontally arranged on the centering frame and the rod end of the cylinder is connected to the slider, and the slider is engaged with the horizontally fixed guide rail on the centering frame to drive the slider to move horizontally; the clamping structure is vertically fixed on the slider.

[0013] Furthermore, the servo reduction motor is provided with two sets, so that the two sets of lifting and lowering barrier arms are lifted and lowered independently.

[0014] Furthermore, a slide is installed at the bottom of the basic frame, and the position of the slide is adjustable.

[0015] Furthermore, a limiting slider is provided in the centering frame, and the rod end of the cylinder is limited by the limiting slider, thereby preventing the problem of uneven force caused by position deviation of the cylinder and the slider.

[0016] Furthermore, the clamping structure includes a blocking member, a displacement member, a roller, a pin shaft and a retaining ring. The roller is installed on the displacement member at the top of the blocking member through the pin shaft and the retaining ring, and directly contacts the wheel axle of the bogie.

[0017] Furthermore, the blocking member is configured as a block structure and is vertically fixed on the slider; the displacement member is configured as a V-shaped structure, the pin is disposed at the corner position of the V-shaped structure, and the rollers are disposed at two outer ends of the V-shaped structure.

[0018] Furthermore, the cylinder adopts a center-sealing solenoid valve to control the center sealing, ensuring the pressure sealing of the cylinder inlet and outlet; the cylinder has a buffering effect to prevent hard limit damage caused by pushing and stopping of the bogie; the cylinder is controlled by a solenoid valve.

[0019] Furthermore, two vertical guide rails are erected inside the basic frame and corresponding to each lifting block arm.

[0020] Furthermore, the basic frame adopts a side window hollowing design.

[0021] Furthermore, protective covers are provided on the front and back of the base frame.

[0022] The utility model has two sets of lifting and blocking arms on the lifting and pushing mechanism of the bogie, which can be lifted and lowered. When it is necessary to dive to the bottom of the bogie, the lifting and blocking arms are retracted (descended), and when it is necessary to clamp the rotating shaft of the bogie, the two lifting and blocking arms are extended (raised).

[0023] Due to the need to meet accurate positioning requirements, the two lifting arms can automatically adjust the spacing according to the axle to meet the precise positioning of the axle and can be compatible with bogies with different axle diameters.

[0024] When a bogie needs to be pushed away, an initial speed needs to be given to the bogie. Only a lifting arm needs to be raised to push the bogie from the side. After the acceleration reaches a certain speed value, the slide under the bogie lifting and pushing mechanism stops, and the bogie obtains the initial speed and leaves, thus completing the pushing of the bogie.

[0025] In summary, the lifting of the lifting arm of the bogie lifting and pushing mechanism of the present utility model is controlled by a servo motor, and the height is adjustable; the distance between the lifting arms is adjustable; the lifting and pushing mechanism can be adjusted according to the position of different bogies perpendicular to the track direction, and can be compatible with the requirements of the wheel axle clamping space of different types of bogies.

[0026] Compared with the prior art, the bogie lifting and pushing mechanism of the present utility model has the following advantages:

[0027] (1) The bogie lifting and pushing mechanism of the present utility model can completely replace manual labor, has no labor intensity problem, and avoids the safety hazards brought by personnel pushing the bogie.

[0028] (2) The bogie lifting and pushing mechanism of the present utility model precisely clamps and limits the wheel axles of the bogie wheelsets, and can ensure high stopping accuracy of the bogie.

[0029] (3) The bogie lifting and pushing mechanism of the present utility model can flexibly adjust the height, opening size (the distance between two lifting arms), and the position of the bogie lifting and pushing mechanism, etc., which is convenient for being compatible with all bogie models and has very strong compatibility.

[0030] (4) The bogie lifting and pushing mechanism of the present utility model uses a special track configuration, avoids occupying the passage, and is not affected by disadvantages such as batteries.

[0031] (5) The bogie lifting and pushing mechanism of the present utility model is reasonably designed, has a compact structure, a small three-dimensional space, and is convenient for installation and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 is a perspective view of the bogie lifting and pushing mechanism of the present utility model;

[0033] Figure 2 is a cross-sectional view of the lifting arm;

[0034] Figure 3 is a side view of the lifting arm;

[0035] Figure 4 is a side view of the use of the bogie lifting and pushing mechanism of the present utility model Figure 1 ;

[0036] Figure 5 is a side view of the use of the bogie lifting and pushing mechanism of the present utility model Figure 2 ;

[0037] Among them, 1 - lifting and shifting arm, 2 - vertical guide rail, 3 - first servo reduction motor, 4 - second servo reduction motor, 5 - upper protective cover plate, 6 - basic frame, 7 - lower protective cover plate, 8 - roller, 9 - rack, 10 - centering frame, 11 - limit slider, 12 - cylinder, 13 - horizontal guide rail, 14 - slider, 15 - blocking member, 16 - displacement member, 17 - pin shaft, 18 - retaining ring;

[0038] A - bogie, A1 - wheel set, A11 - axle;

[0039] B - lifting and pushing mechanism;

[0040] C - track;

[0041] D - sliding table. Specific embodiments

[0042] The following further describes the present utility model in detail with reference to the accompanying drawings and embodiments.

[0043] Refer to Figure 1 As shown, the bogie lifting and pushing mechanism B of this embodiment includes a basic frame 6 and a vertical guide rail 2, a first servo reduction motor 3, a second servo reduction motor 4, an upper protective cover plate 5, a lower protective cover plate 7, and two sets of oppositely arranged lifting and shifting arms 1 provided on the basic frame 6.

[0044] Among them, the basic frame 6 adopts a design such as side window opening to meet the requirements of convenient installation and maintenance and weight reduction, and is sealed by the upper protective cover plate 5 and the lower protective cover plate 7 to ensure safety during use.

[0045] The bottom of the basic frame 6 is installed on the sliding table D, which can drive the bogie lifting and pushing mechanism B of this embodiment to adjust the position.

[0046] Among them, two pairs of vertical guide rails 2 are erected in the basic frame 6, and each lifting and shifting arm 1 moves up and down in the basic frame 6 through a pair of vertical guide rails 2. Specifically, driven by the first servo reduction motor 3 or the second servo reduction motor 4, the lifting and shifting arm 1 moves up and down on the vertical guide rail 2 in the basic frame 6. The first servo reduction motor 3 and the second servo reduction motor 4 are driven by a gear-rack transmission to ensure the precise lifting of the lifting and shifting arm 1 and meet the height changes of different types of bogies A.

[0047] Preferably, the left and right sets of lifting and shifting arms 1 can move up and down independently, which can meet the double-sided clamping and limiting of the equipment, or the single-sided blocking and limiting. When the incoming material (bogie A) needs to be sent to a specified position, the double-sided clamping method is used for precise positioning; when the bogie A needs to be pushed out, the single-sided blocking and limiting can ensure the requirements of pushing and limiting and quick separation.

[0048] Such as Figure 2As shown in the figure, the lifting and shifting arm 1 includes a roller 8, a rack 9, a centering frame 10, a limit slider 11, a cylinder 12, a horizontal guide rail 13, a slider 14, a blocking member 15, a displacement member 16, a pin shaft 17 and a retaining ring 18;

[0049] Among them, the roller 8 is installed on the inner side of the top end of the blocking member 15 through the pin shaft 17 and the retaining ring 18, and is used for directly contacting and clamping the axle A11 of the bogie wheel set A1.

[0050] The blocking member 15 is set as a block structure, is erected and fixed on the slider 14, the slider 14 is connected to the horizontal guide rail 13, and the horizontal guide rail 13 is fixed on the centering frame 10.

[0051] The cylinder 12 is installed on the side of the centering frame 10, and the rod end of the cylinder 12 is connected to the slider 14. The slider 14 is driven to move horizontally on the horizontal guide rail 13 by the telescopic movement of the rod end of the cylinder 12.

[0052] The cylinder 12 is controlled by a solenoid valve. Preferably, the cylinders 12 on the two sets of lifting and shifting arms 1 are independently controlled by their respective solenoid valves, that is, the two cylinders 12 expand and contract independently.

[0053] In this embodiment, the two cylinders 12 expand and contract independently but are synchronously controlled to expand and contract.

[0054] In addition, the limit slider 11 is arranged inside the centering frame 10, and the rod end of the cylinder 12 is limited by the limit slider 11, ensuring that the rod end of the cylinder 12 and the slider 14 are kept connected and having the function of accommodating the position deviation between the two.

[0055] Specifically, generally, a nut is provided at the rod end of the cylinder 12. The limit slider 11 is set as a square structure and a threaded hole is provided in the middle of the limit slider 11, which cooperates with the nut at the rod end of the cylinder 12. The limit slider 11 is arranged in the inner limit groove of the centering frame 10 (such as Figure 2 the square groove shown in the figure). The rod of the cylinder 12 can pass through the middle of the square groove. The rod of the cylinder 12 extends into the limit slider 11, and the dead point position of the limit slider 11 is adjusted by the thread. The rotation of the limit slider 11 is restricted by the square groove, with a slight gap to release the position deviation. The rotation of the cylinder 12 is restricted by the fixing hole of the cylinder 12 (a fixing hole for placing the cylinder 12 is provided on the side of the centering frame 10 where Figure 2 is located).

[0056] A rack 9 is installed on the side of each centering frame 10 for the power transmission of the overall lifting of the centering frame 10 and its affiliated mechanisms. Specifically, each rack 9 cooperates with the gear of the first servo reduction motor 3 or the second servo reduction motor 4 (gears are equipped at the shaft ends of both the first servo reduction motor 3 and the second servo reduction motor 4, and the gears and the rack 9 form a gear-rack drive), driving the centering frame 10 and even the lifting and shifting arm 1 to move up and down on the vertical guide rail 2.

[0057] The displacement member 16 is configured as a V-shaped structure, with the pin shaft 17 at the corner position and the rollers 8 installed at both outer ends. During the equipment debugging process, it is impossible to adjust the lifting and pushing mechanism B to perfectly align with the exact center position of the axle A11 (this is the ideal value). To eliminate the situation where due to this problem, a large reverse force during clamping or pushing causes one roller 8 to contact the shaft while the other roller 8 does not contact and bears an eccentric force, resulting in equipment damage. The V-shaped structure design allows the two rollers 8 to automatically adapt to the axle A11, ensuring that the two rollers 8 are simultaneously pressed firmly on the surface of the axle A11 to evenly distribute the force.

[0058] The process of clamping and pushing the bogie axle by using the bogie lifting and pushing mechanism B of this embodiment is as follows:

[0059] When the lifting and blocking arm 1 needs to rise to clamp the axle A11, the cylinder 12 retracts ( Figure 2 as shown on the right side), driving the slider 14 and the blocking member 15 thereon to retract. At this time, the distance between the blocking members 15 on the two lifting and blocking arms 1 becomes larger.

[0060] The lifting and blocking arm 1 rises to the preset height;

[0061] The cylinder 12 extends ( Figure 2 as shown on the left side), driving the slider 14 and the blocking member 15 thereon to move. The distance between the two blocking members 15 becomes smaller until the axle A11 is clamped (as Figure 4 shown). Preferably, at this time, the two cylinders 12 are respectively controlled by a three-position five-way center-sealing solenoid valve for center-sealing to ensure pressure sealing of the air inlet and outlet of the two cylinders 12 on both sides. The cylinder 12 is selected as a 160-diameter cylinder (not limited to this diameter). When maintaining the position, the pressure is about 10050N of lateral pressure (such as under a pressure of 0.5Mpa, but not limited to using this pressure, and this pressure can be flexibly adjusted by a pressure regulating valve to meet the actual use adjustment requirements). At the same time, the rod end of the cylinder 12 is in a pressure balance state, equivalent to having two pneumatic springs with a 10050N elastic force on both sides of the axle. At this time, the cylinder 12 has a buffering effect, which can effectively prevent hard limit damage caused by the pushing and stopping of the bogie A.

[0062] The above embodiments are only used to illustrate the technical idea of the present invention, and the protection scope of the present invention cannot be limited thereby. Any modification made on the basis of the technical solution according to the technical idea proposed by the present invention falls within the protection scope of the present invention; the technologies not involved in the present invention can all be realized through the prior art.

Claims

1. A bogie lifting and pushing mechanism, characterized in that: The lifting and pushing mechanism comprises a basic frame, a vertical guide rail arranged on the basic frame, a servo reduction motor, and a lifting and blocking arm arranged relatively; The lifting and lowering stop arm includes a centering frame, a rack, a clamping structure, a cylinder, a horizontal guide rail and a slider; a rack is provided on the side of the centering frame, and the rack cooperates with the gear on the shaft end of the servo reduction motor to drive the lifting and lowering stop arm to accurately lift and lower on the vertical guide rail; the cylinder is horizontally arranged on the centering frame and the rod end of the cylinder is connected to the slider, and the slider cooperates with the horizontal guide rail fixed on the centering frame to drive the slider to move horizontally; the clamping structure is vertically fixed on the slider.

2. A bogie lifting and pushing mechanism as claimed in claim 1, characterized in that: The servo reduction motor is provided with two sets, so that the two sets of lifting and lowering barrier arms can be lifted and lowered independently.

3. A bogie lifting and pushing mechanism as claimed in claim 2, characterized in that: A slide is installed at the bottom of the basic frame, and the position is adjustable.

4. A bogie lifting and pushing mechanism according to any one of claims 1 to 3, characterized in that: The clamping structure comprises a blocking member, a displacement member, a roller, a pin shaft and a retaining ring. The roller is installed on the displacement member at the top end of the blocking member through the pin shaft and the retaining ring, and directly contacts the wheel axle of the bogie.

5. A bogie lifting and pushing mechanism as claimed in claim 4, characterized in that: The blocking member is configured as a block structure and is vertically fixed on the sliding block; the displacement member is configured as a V-shaped structure, the pin is disposed at the corner position of the V-shaped structure, and the rollers are disposed at two outer ends of the V-shaped structure.

6. A bogie lifting and pushing mechanism according to any one of claims 1 to 3, characterized in that: The cylinder adopts a center sealing solenoid valve to control the center sealing, ensuring the pressure sealing of the cylinder inlet and outlet; the cylinder has a buffering effect to prevent hard limit damage caused by pushing and stopping of the bogie; the cylinder is controlled by a solenoid valve.

7. A bogie lifting and pushing mechanism according to any one of claims 1 to 3, characterized in that: Two vertical guide rails are located inside the basic frame and are erected for each lifting block arm.

8. A bogie lifting and pushing mechanism according to any one of claims 1 to 3, characterized in that: The basic frame adopts a side window-opening hollow design.

9. A bogie lifting and pushing mechanism according to any one of claims 1 to 3, characterized in that: Protective cover plates are arranged on the front and back of the basic frame.

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