Manual emergency lifting and resetting device for grinding trolley and steel rail grinding trolley

Abstract

The utility model discloses a manual emergency lifting device of a grinding trolley and a steel rail grinding wagon, and relates to the field of steel rail grinding, the manual emergency lifting device comprises a chain block, an upper lifting lug and a lower lifting lug; the upper lifting lug is connected with a ceiling of a carriage of the steel rail grinding wagon, the lower lifting lug is connected with the grinding trolley, and the two ends of the chain block are connected with the upper lifting lug and the lower lifting lug through hooks respectively. According to the utility model, the grinding trolley can be emergently lifted and locked manually, so that the situation that a line cannot operate normally due to equipment failure is reduced, and the safety of the grinding trolley is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of rail polishing, and particularly relates to a manual emergency lifting device of a polishing trolley and a rail polishing vehicle. BACKGROUND

[0002] During operation of the rail polishing vehicle, if the control system or power source fails, the polishing trolley may not be able to be lifted and stored according to the normal process, thereby affecting the normal resumption of operation of the line and further affecting the completion of train operation and various transportation tasks. To avoid this situation, the operator usually uses the emergency device on the vehicle to urgently lift and store the polishing trolley.

[0003] In the prior art, the emergency device mainly has three modes of electric emergency, manual emergency and jack lifting. The electric emergency mainly uses a direct current or alternating current emergency pump as a power source to lift the polishing trolley, which is simple and fast to operate. The manual emergency operation is to rely on manual reciprocating shaking of a hand pump handle when the direct current or alternating current emergency pump cannot obtain power or cannot work, so that the piston inside the oil pump reciprocates to form the work of the pump and provide power to urgently lift the polishing trolley.

[0004] However, both of the two lifting methods have a common prerequisite that the lifting mechanisms and locking mechanisms at both ends of the polishing trolley must be intact. If the circuit oil pipe of the lifting mechanism and the locking mechanism at both ends of the polishing trolley is broken or the oil cylinder piston rod is broken, the above-mentioned electric emergency and manual emergency device cannot normally urgently lift and store the polishing trolley. When the jack lifting is used, multiple people are needed to cooperate, and the self-weight of the lifting equipment is large, which is difficult to carry. At the same time, the hydraulic oil pipe of the lifting cylinder of the lifting mechanism at both ends needs to be disassembled to ensure that the internal pressure of the cylinder is released during lifting. In addition, the lifting equipment needs to be placed at the lower part of the polishing trolley, which seriously affects the lifting time. Especially in the subway tunnel section, due to the limited space of the tunnel, when the fault occurs in the subway three-rail (current collection rail) area or the platform area, the operator cannot even get off the car to enter the lower part of the car to use the jack and other mechanical equipment to lift and store the polishing trolley. SUMMARY

[0005] In view of the defects in the prior art, the purpose of the utility model is to provide a manual emergency lifting device of a polishing trolley and a rail polishing vehicle, which can urgently lift and store the polishing trolley by manual operation when the electric emergency, manual emergency device and jack cannot normally urgently lift and store the polishing trolley. Especially in the subway tunnel three-rail (current collection rail) area or the platform area, due to the limited space, the polishing trolley cannot be urgently lifted by manual operation of the jack. The system can urgently lift and store the polishing trolley by manual operation, thereby reducing the situation that the line cannot normally operate due to equipment failure and improving the safety of the polishing vehicle.

[0006] The utility model discloses a kind of manual emergency hoisting and recovering devices of polishing trolley, including chain hoist, upper recovering lug and lower recovering lug;The upper recovering lug is connected with the roof of rail polishing car carriage, and the lower recovering lug is connected with polishing trolley, and the two ends of chain hoist are connected with upper recovering lug and lower recovering lug respectively by hook.

[0007] Further improvement is that it further comprises a mechanical locking device for mechanically locking the polishing trolley,

[0008] Further improvement is that the mechanical locking device comprises a chain, an upper ear plate and a lower ear plate;The upper ear plate is connected with the frame of rail polishing car, and the lower ear plate is connected with polishing trolley, and the two ends of chain are connected with upper ear plate and lower ear plate by shackles.

[0009] The utility model discloses a kind of rail polishing cars, comprising a frame, a carriage is provided on the frame, the bottom of the frame is provided with bogie at both ends, polishing trolley is provided between the two bogies, and further comprising the manual emergency hoisting and recovering device as described above.

[0010] Further improvement is that the manual emergency hoisting and recovering device is provided with four, two are oppositely arranged, wherein two manual emergency hoisting and recovering devices are connected with the front side crossbeam of polishing trolley, and the other two manual emergency hoisting and recovering devices are connected with the rear side crossbeam of polishing trolley.

[0011] Further improvement is that the mechanical locking device is provided with four, two are oppositely arranged, wherein two mechanical locking devices are connected with the front end of polishing trolley, and the other two mechanical locking devices are connected with the rear end of polishing trolley.

[0012] Further improvement is that it further comprises two hydraulic lifting mechanisms, and the two hydraulic lifting mechanisms are connected with the frame and located at the front and rear ends of polishing trolley respectively for lifting polishing trolley.

[0013] Further improvement is that the hydraulic lifting mechanism comprises a shoulder pole and a lifting oil cylinder, the two ends of the shoulder pole are connected with polishing trolley respectively, the cylinder body of the lifting oil cylinder is connected with the frame, and the piston rod of the lifting oil cylinder is connected with the shoulder pole.

[0014] Further improvement is that the hydraulic lifting mechanism further comprises a connecting rod, a deflection oil cylinder, a connecting arm and a rotating arm;The two ends of the connecting rod are respectively provided with locking hooks matched with the shoulder pole;The cylinder body of the deflection oil cylinder is connected with the frame, the proximal end of the connecting arm is hinged with the connecting rod, and the distal end of the connecting arm is hinged with the piston rod of the deflection oil cylinder;One end of the rotating arm is hinged with the distal end of the connecting arm, and the other end of the rotating arm is hinged with the frame.

[0015] Further improvement lies in that the hydraulic oil tank is further included, and the hydraulic oil tank is provided with a cut-off valve with the control circuit of each lifting oil cylinder.

[0016] The utility model discloses the beneficial effect lies in:

[0017] In the utility model, in the condition that electric emergency and manual emergency device cannot normally lift the polishing trolley, the polishing trolley manual emergency lifting rescue system of rail polishing car can make the operator quickly lift the polishing trolley to the position and use the locking device mechanical locking without getting off the car. This reduces or avoids the influence of tunnel area and trackside three-rail equipment on lifting. At the same time, the lifting mechanism oil cylinder control circuit solves the problem that the corresponding control hydraulic oil pipe of the lifting oil cylinder does not need to be disassembled in the mechanical lifting process, avoids the situation that no hydraulic oil is caused in the lifting oil cylinder and the oil cylinder work is not controlled. Therefore, the polishing trolley can be lifted to the position and locked at the fastest speed, and the line operation is restored in the shortest time, the influence of equipment failure on transportation is maximally reduced, and the safety and reliability of the rail polishing car are improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the structure schematic diagram of rail polishing car in the utility model embodiment;

[0019] Figure 2 It is the structure schematic diagram of rail polishing car in the utility model embodiment; Figure 1

[0020] Figure 3 It is the structure schematic diagram of rail polishing car in the utility model embodiment; Figure 2

[0021] Figure 4 It is the structure schematic diagram of rail polishing car in the utility model embodiment; Figure 2

[0022] Figure 5 It is the structure schematic diagram of rail polishing car in the utility model embodiment; Figure 4

[0023] Figure 6 It is the perspective view of rail polishing car in the utility model embodiment; Figure 1

[0024] Figure 7 It is the left view of rail polishing car in the utility model embodiment; Figure 6

[0025] Figure 8 It is the connection schematic diagram of hydraulic lifting mechanism in the utility model embodiment;

[0026] Figure 9 It is the structure schematic diagram of hydraulic lifting mechanism in the utility model embodiment;

[0027] Figure 10 ​​​​​​The utility model discloses a control circuit schematic view of hydraulic oil tank and lifting oil cylinder in the embodiment of the utility model.

[0028] Reference signs:

[0029] 1 - frame; 11 - carriage; 12 - bogie; 13 - polishing trolley; 14 - hydraulic oil tank; 15 - cut-off valve;

[0030] 2 - manual emergency hoisting and winding device; 21 - hand chain block; 22 - upper hoisting and winding lug; 23 - lower hoisting and winding lug; 24 - hook;

[0031] 3 - mechanical locking device; 31 - chain; 32 - upper lug plate; 33 - lower lug plate; 34 - unhooking;

[0032] 4 - hydraulic lifting mechanism; 41 - carrying beam; 42 - lifting oil cylinder; 43 - connecting rod; 44 - locking hook; 45 - deflection oil cylinder; 46 - connecting arm; 47 - rotating arm. DETAILED DESCRIPTION

[0033] The embodiments of the utility model are described in detail below, and the embodiment examples are shown in the drawings, wherein the same or similar signs represent the same or similar elements or elements with the same or similar functions throughout.

[0034] In the description of the utility model, it needs to be explained that for the orientation words, if the terms "center", "transverse (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation and positional relationship based on the orientation or positional relationship shown in the drawings, and only for the convenience of describing the utility model and simplifying the description, and not indicating or implying that the indicated device or element must have a specific orientation, structure and operation, and cannot be understood as limiting the specific protection scope of the utility model.

[0035] In addition, if the terms "first", "second" are only used for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. Therefore, the "first", "second" features can be explicitly or implicitly included one or more features, and the meaning of "several", "several" in the description of the utility model is two or more than two, unless otherwise specifically limited.

[0036] The technical scheme and beneficial effects of the present application will be clearer and more explicit through the further description of the specific embodiments of the present application combined with the accompanying drawings of the present application. The description of the embodiments with reference to the accompanying drawings is exemplary and is intended to explain the present application, and cannot be understood as a limitation of the present application.

[0037] Referring to Figures 6-7 As shown in the figure, the present application provides a manual emergency lifting and recovering device for a grinding trolley, which comprises a chain hoist 21, an upper lifting and recovering lug 22 and a lower lifting and recovering lug 23. The upper lifting and recovering lug 22 is connected with the roof of the car compartment 11 of the rail grinding trolley, the lower lifting and recovering lug 23 is connected with the grinding trolley 13, and the two ends of the chain hoist 21 are connected with the upper lifting and recovering lug 22 and the lower lifting and recovering lug 23 through hooks 24 respectively.

[0038] Referring to Figures 2-5 As shown in the figure, the present application further comprises a mechanical locking device 3 for mechanically locking the grinding trolley 13. Specifically, the mechanical locking device 3 comprises a chain 31, an upper lug plate 32 and a lower lug plate 33. The upper lug plate 32 is connected with the frame 1 of the rail grinding trolley, the lower lug plate 33 is connected with the grinding trolley 13, and the two ends of the chain 31 are connected with the upper lug plate 32 and the lower lug plate 33 through shackles 34 respectively.

[0039] Referring to Figure 1 As shown in the figure, the present application further provides a rail grinding trolley, which comprises a frame 1. The frame 1 is provided with a car compartment 11. The bottom of the frame 1 is provided with two bogies 12. The two bogies 12 are provided with a grinding trolley 13 therebetween. The rail grinding trolley further comprises the manual emergency lifting and recovering device 2 as described above. Specifically, the manual emergency lifting and recovering device 2 is provided with four, which are arranged oppositely in pairs. Two of the manual emergency lifting and recovering devices 2 are connected with the front side cross beam of the grinding trolley 13, and the other two are connected with the rear side cross beam of the grinding trolley 13. The mechanical locking device 3 is provided with four, which are arranged oppositely in pairs. Two of the mechanical locking devices 3 are connected with the front end of the grinding trolley 13, and the other two are connected with the rear end of the grinding trolley 13.

[0040] Referring to Figure 8 and Figure 9As shown, the rail grinding trolley also includes two hydraulic lifting mechanisms 4. The two hydraulic lifting mechanisms 4 are connected to the frame 1 and are located at the front and rear ends of the grinding trolley 13, respectively, for lifting the grinding trolley 13. Specifically, the hydraulic lifting mechanism 4 includes a spreader beam 41 and a lifting cylinder 42. The two ends of the spreader beam 41 are connected to the grinding trolley 13, the cylinder body of the lifting cylinder 42 is connected to the frame 1, and the piston rod of the lifting cylinder 42 is connected to the spreader beam 41. The hydraulic lifting mechanism 4 also includes a connecting rod 43, a deflection cylinder 45, a connecting arm 46, and a rotating arm 47; both ends of the connecting rod 43 are respectively provided with locking hooks 44 that are adapted to the spreader beam 41; the cylinder body of the deflection cylinder 45 is connected to the frame 1, the proximal end of the connecting arm 46 is hinged to the connecting rod 43, and the distal end of the connecting arm 46 is hinged to the piston rod of the deflection cylinder 45; one end of the rotating arm 47 is hinged to the distal end of the connecting arm 46, and the other end of the rotating arm 47 is hinged to the frame 1.

[0041] See Figure 10 As shown, the rail grinding vehicle also includes a hydraulic oil tank 14, and the control circuit of the hydraulic oil tank 14 and each lifting cylinder 42 is equipped with a shut-off valve 15.

[0042] The working principle of this utility model is as follows:

[0043] During normal lifting of the grinding trolley, the grinding trolley is lifted into position directly by the lifting cylinders at both ends of the grinding trolley. Then, the deflection cylinders of the locking devices at both ends of the grinding trolley rotate the locking hooks, which directly support the spreader beams at both ends of the grinding trolley, thus completing the normal lifting and locking of the grinding trolley.

[0044] In case of malfunction, when the grinding trolley cannot be lifted, common emergency devices such as electric emergency pumps, manual emergency pumps, or jacks can be used for lifting.

[0045] When neither the electric nor manual emergency devices of the grinding trolley can properly lift and reset the grinding carriage, the following steps must be performed: First, open the shut-off valve in the lifting mechanism's cylinder control circuit to ensure that the hydraulic oil in the lifting cylinder can be unloaded and flow back to the hydraulic oil tank during the emergency lifting process. Next, open the floor inside the carriage and connect the hand-operated hoist to the lower resetting lug on the grinding carriage and the upper resetting lug inside the carriage, respectively. Then, simultaneously pull the chain of the hand-operated hoist to achieve the emergency lifting of the grinding carriage. Once lifted into position, use the shackle and chain in the mechanical locking device to connect the upper and lower lugs, respectively, to complete the mechanical locking. Finally, remove the hand-operated hoist and restore the carriage floor. The emergency lifting and reset operation of the grinding carriage is now complete.

[0046] In the description of this specification, references to terms such as "an embodiment," "preferred," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. Illustrative expressions of the above terms in this specification do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0047] Based on the above description of the structure and principle, those skilled in the art should understand that this utility model is not limited to the specific embodiments described above. Improvements and substitutions based on this utility model using techniques known in the art all fall within the protection scope of this utility model and should be defined by the claims.

Claims

1. A manual emergency restart device for a grinding trolley, characterized in that: It includes a hand chain hoist (21), an upper reciprocating lug (22), and a lower reciprocating lug (23); the upper reciprocating lug (22) is connected to the roof of the rail grinding car (11), the lower reciprocating lug (23) is connected to the grinding trolley (13), and the two ends of the hand chain hoist (21) are connected to the upper reciprocating lug (22) and the lower reciprocating lug (23) respectively through hooks (24).

2. The manual emergency restart device for the grinding carriage according to claim 1, characterized in that: It also includes a mechanical locking device (3) for mechanically locking the grinding carriage (13).

3. The manual emergency restart device for the grinding carriage according to claim 2, characterized in that: The mechanical locking device (3) includes a chain (31), an upper ear plate (32) and a lower ear plate (33); the upper ear plate (32) is connected to the rail grinding car frame (1), the lower ear plate (33) is connected to the grinding trolley (13), and the two ends of the chain (31) are connected to the upper ear plate (32) and the lower ear plate (33) respectively through shackles (34).

4. A rail grinding vehicle, comprising a frame (1), a carriage (11) mounted on the frame (1), bogies (12) respectively mounted at both ends of the bottom of the frame (1), and a grinding carriage (13) mounted between the two bogies (12), characterized in that: It also includes the manual emergency recovery device (2) as described in any one of claims 1 to 3.

5. The rail grinding machine according to claim 4, characterized in that: The manual emergency recovery device (2) is provided in four pairs, with two of them connected to the front crossbeam of the grinding carriage (13) and the other two connected to the rear crossbeam of the grinding carriage (13).

6. The rail grinding machine according to claim 4, characterized in that: The mechanical locking device (3) is provided in four pairs, with two mechanical locking devices (3) connected to the front end of the grinding carriage (13) and the other two mechanical locking devices (3) connected to the rear end of the grinding carriage (13).

7. The rail grinding machine according to claim 4, characterized in that: It also includes two hydraulic lifting mechanisms (4), which are connected to the frame (1) and located at the front and rear ends of the grinding carriage (13) respectively, for lifting the grinding carriage (13).

8. The rail grinding machine according to claim 7, characterized in that: The hydraulic lifting mechanism (4) includes a spreader beam (41) and a lifting cylinder (42). The two ends of the spreader beam (41) are connected to the grinding carriage (13) respectively. The cylinder body of the lifting cylinder (42) is connected to the frame (1), and the piston rod of the lifting cylinder (42) is connected to the spreader beam (41).

9. The rail grinding machine according to claim 8, characterized in that: The hydraulic lifting mechanism (4) further includes a connecting rod (43), a deflection cylinder (45), a connecting arm (46), and a rotating arm (47); the two ends of the connecting rod (43) are respectively provided with locking hooks (44) adapted to the flat beam (41); the cylinder body of the deflection cylinder (45) is connected to the frame (1); the proximal end of the connecting arm (46) is hinged to the connecting rod (43); the distal end of the connecting arm (46) is hinged to the piston rod of the deflection cylinder (45); one end of the rotating arm (47) is hinged to the distal end of the connecting arm (46); and the other end of the rotating arm (47) is hinged to the frame (1).

10. The rail grinding machine according to claim 8, characterized in that: It also includes a hydraulic oil tank (14), and the control circuit between the hydraulic oil tank (14) and each lifting cylinder (42) is equipped with a shut-off valve (15).

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