Cab lifting appliance

Abstract

The utility model discloses a cab lifting appliance, which belongs to the technical field of lifting devices and comprises a cross beam, a longitudinal beam is arranged below the cross beam, and two sliding chutes are arranged on the longitudinal beam; the two fork rods are in sliding connection with the two sliding grooves respectively, and the two fork rods are symmetrically distributed on the two sides of the cross beam; two lead screws are rotationally connected to the longitudinal beam, the two fork rods are in threaded connection with the two lead screws correspondingly, and a driving assembly in transmission connection with the two lead screws is arranged on the longitudinal beam; the hoisting connecting piece is arranged on the cross beam; and the gravity center adjusting assembly is arranged on the cross beam, and when the cab is lifted, the gravity center adjusting assembly can enable the fork rod to be kept in a horizontal state. According to the utility model, the risks of deformation, distortion and cracks at the hoisting position can be reduced, the hoisting effect is improved, and meanwhile, the distance between the two fork rods is adjustable, so that the hoisting device can adapt to hoisting of cabs of different models, and the adaptability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hoisting devices, in particular to a cab hoist. Background Art

[0002] Electric locomotives dominate railway transportation. When assembling electric locomotives, the cab operating console needs to be hoisted as a whole into the locomotive driver's cab for installation. Currently, most of the cab operating console hoists are soft rope hoists. The cab operating console has no integral hoisting points, and its external protective devices are generally organic resins and other softer protective devices. At the same time, the cab assembly is heavy. Such overall hoisting can easily cause the operating console to deform or break or crack.

[0003] Therefore, a cab lifting device is proposed. Utility Model Content

[0004] The utility model aims to provide a cab lifting device, aiming to solve or improve at least one of the above-mentioned technical problems.

[0005] To achieve the above purpose, the utility model provides the following solution: The utility model provides a cab hoist, comprising:

[0006] A crossbeam, a longitudinal beam is arranged below the crossbeam, and two slide grooves are opened on the longitudinal beam;

[0007] Two fork rods, the two fork rods are respectively slidably connected to the two slide grooves, and the two fork rods are symmetrically distributed on both sides of the crossbeam; two lead screws are rotatably connected to the longitudinal beam, the two fork rods are respectively threadedly connected to the two lead screws, and a driving assembly is provided on the longitudinal beam that is transmission-connected to the two lead screws;

[0008] A lifting connector is arranged on the crossbeam;

[0009] The center of gravity adjustment component is arranged on the cross beam, and when the cab is lifted, the center of gravity adjustment component can keep the fork rod in a horizontal state.

[0010] Preferably, a connecting shaft is rotatably connected to the longitudinal beam, and both ends of the connecting shaft are respectively fixedly connected to the two lead screws, and the driving assembly includes a ratchet fixedly connected to the connecting shaft, and a handle is rotatably connected to the connecting shaft, and a V-shaped two-way pawl is rotatably connected to the handle, and two pawls in the two-way pawl are respectively meshed with the ratchet, and a limiting assembly detachably connected to the two-way pawl is provided on the handle.

[0011] Preferably, the limiting assembly includes a groove opened on the handle, the groove is located at the end of the two-way pawl away from the ratchet, a pressure column is slidably connected in the groove, a compression spring is fixed between the pressure column and the groove, and the end of the pressure column away from the compression spring extends out of the groove and abuts against one side of the two-way pawl.

[0012] Preferably, the center of gravity adjustment assembly includes a limit groove opened on the top of the beam, a support rod is slidably connected in the limit groove, one end of the support rod extends out of the limit groove and is fixedly connected to a mass block, a plurality of bolts are threadedly connected on the beam, a plurality of limit holes are opened on the support rod along the length direction, the bolts pass through the limit groove and the limit holes and are slidably connected to the limit holes.

[0013] Preferably, the lifting connector includes two bearing pins, and lifting plates are fixedly connected on both sides of the crossbeam. A plurality of lifting holes are provided on the lifting plates. The bearing pins pass through two opposite lifting holes on the two lifting plates. Locking nuts are respectively threadedly connected at both ends of the bearing pins, and the two lifting plates are located between the two locking nuts.

[0014] Preferably, a non-slip rubber pad is fixedly connected above the fork rod.

[0015] Preferably, a guide rod is fixedly connected in the slide groove, a guide hole is opened on the fork rod, and the guide rod is slidably connected to the guide hole.

[0016] Preferably, one end of the cross beam away from the mass block is fixedly connected to a connecting beam, the bottom of the connecting beam is fixedly connected to the longitudinal beam, and the cross beam and the connecting beam are in a C shape.

[0017] The utility model discloses the following technical effects: the crossbeam is connected to the external lifting device through a lifting connector, the fork rod is inserted into the bottom frame of the cab, and the lifting center of gravity is adjusted through a center of gravity adjustment component, so that the fork rod can lift the cab horizontally for lifting; the bottom frame of the cab has high structural strength, and the fork rod can increase the contact area with the bottom frame of the cab, thereby reducing the risk of deformation, distortion and cracks at the lifting position and improving the lifting effect; and the spacing between the two fork rods in the present application is adjustable, which can adapt to the lifting of different models of cabs and improve the adaptability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings constituting a part of the present application are used to provide a further understanding of the present application. The illustrative embodiments and descriptions of the present application are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0019] Figure 1 It is a three-dimensional diagram of the utility model;

[0020] Figure 2 This is a schematic diagram of the installation of the drive assembly and the connecting shaft in the utility model;

[0021] Figure 3 It is a structural schematic diagram of the driving component in the utility model;

[0022] Figure 4 It is a structural schematic diagram of the slideway and the guide rod in the utility model;

[0023] Figure 5 It is an exploded view of the center of gravity adjustment component of the utility model.

[0024] In the figure: 1. cross beam; 2. longitudinal beam; 3. slide groove; 4. fork rod; 5. screw; 6. connecting shaft; 7. ratchet; 8. handle; 9. two-way pawl; 10. groove; 11. pressure column; 12. compression spring; 13. limit groove; 14. support rod; 15. mass block; 16. bolt; 17. limit hole; 18. bearing pin; 19. lifting plate; 20. lifting hole; 21. locking nut; 22. anti-slip rubber pad; 23. connecting beam; 24. guide rod. DETAILED DESCRIPTION

[0025] 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.

[0026] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0027] Reference Figure 1-Figure 5 The utility model provides a cab sling, comprising:

[0028] A crossbeam 1, a longitudinal beam 2 is arranged below the crossbeam 1, and two slide grooves 3 are opened on the longitudinal beam 2;

[0029] Two fork rods 4, the two fork rods 4 are respectively slidably connected to the two slide grooves 3, and the two fork rods 4 are symmetrically distributed on both sides of the crossbeam 1; two lead screws 5 are rotatably connected to the longitudinal beam 2, the two fork rods 4 are respectively threadedly connected to the two lead screws 5, and a driving component is provided on the longitudinal beam 2 that is transmission-connected to the two lead screws 5;

[0030] A lifting connector is arranged on the crossbeam 1;

[0031] A gravity center adjustment component is arranged on the cross beam 1. When the cab is lifted, the gravity center adjustment component can keep the fork rod 4 in a horizontal state;

[0032] In this embodiment, the width adjustment range of the two fork rods 4 is between 800-1200mm, and an anti-drop hole is provided on the fork rod 4. When the fork rod 4 is inserted into the bottom frame of the cab control console, a positioning pin (not shown in the figure) can be inserted into the anti-drop hole and the corresponding jack of the bottom frame of the cab to connect the cab with the fork rod 4 to prevent the cab from falling when the fork rod 4 is tilted;

[0033] The crossbeam 1 is connected to the external lifting device through a lifting connector, the fork rod 4 is inserted into the bottom frame of the cab, and the lifting center of gravity is adjusted by the center of gravity adjustment component, so that the fork rod 4 can lift the cab horizontally for lifting; the bottom frame of the cab has high structural strength, and the fork rod 4 can increase the contact area with the bottom frame of the cab, thereby reducing the risk of deformation, distortion and cracks at the lifting position and improving the lifting effect; and the spacing between the two fork rods 4 in the present application is adjustable, which can adapt to the lifting of different types of cabs and improve the adaptability of the device.

[0034] Further optimized solution, the longitudinal beam 2 is rotatably connected with a connecting shaft 6, and the two ends of the connecting shaft 6 are respectively fixedly connected to the two lead screws 5, and the driving assembly includes a ratchet 7 fixedly connected to the connecting shaft 6, and the connecting shaft 6 is rotatably connected with a handle 8, and the handle 8 is rotatably connected with a V-shaped bidirectional pawl 9, and the two pawls of the bidirectional pawl 9 are respectively engaged with the ratchet 7, and the handle 8 is provided with a limit assembly detachably connected to the bidirectional pawl 9;

[0035] The limit assembly includes a groove 10 formed on the handle 8, the groove 10 is located at the end of the two-way pawl 9 away from the ratchet 7, a pressure column 11 is slidably connected in the groove 10, a compression spring 12 is fixedly connected between the pressure column 11 and the groove 10, and the end of the pressure column 11 away from the compression spring 12 extends out of the groove 10 and abuts against one side of the two-way pawl 9;

[0036] When adjusting the distance between the two fork rods 4, turn the handle 8 so that the two-way pawl 9 drives the ratchet 7 to rotate in the same direction, thereby driving the two lead screws 5 on the connecting shaft 6 to rotate, thereby realizing the adjustment of the distance between the two fork rods 4. Since it is a synchronous adjustment, the two fork rods 4 are always symmetrically located on both sides of the beam 1, which is convenient for maintaining the hoisting balance during hoisting. When reverse rotation is required, the pressure column 11 is pressed against the other side of the two-way pawl 9, so that the other pawl of the two-way pawl 9 engages with the ratchet 7, and then the handle 8 is rotated in the reverse direction, thereby driving the two lead screws 5 to rotate in the reverse direction.

[0037] Further optimized solution, the center of gravity adjustment component includes a limit groove 13 opened on the top of the beam 1, a support rod 14 is slidably connected in the limit groove 13, one end of the support rod 14 extends out of the limit groove 13 and is fixedly connected to a mass block 15, a plurality of bolts 16 are threadedly connected on the beam 1, and a plurality of limit holes 17 are opened on the support rod 14 along the length direction, and the bolts 16 pass through the limit groove 13 and the limit hole 17 and are slidably connected to the limit hole 17;

[0038] The position of the mass block 15 is adjusted by connecting the bolts 16 to the limiting holes 17 at different positions, and the lifting center of gravity can be adjusted by utilizing the lever principle, so that cabs of different models can be lifted.

[0039] Further optimized scheme, the lifting connector includes two bearing pins 18, and the two sides of the crossbeam 1 are respectively fixed with lifting plates 19, and the lifting plates 19 are provided with a plurality of lifting holes 20. The bearing pins 18 pass through two opposite lifting holes 20 on the two lifting plates 19, and the two ends of the bearing pins 18 are respectively threadedly connected with locking nuts 21, and the two lifting plates 19 are located between the two locking nuts 21;

[0040] The two bearing pins 18 act as main lifting points and are respectively connected to rigging (not shown in the figure). Different lifting holes 20 can be selected for the bearing pins 18 according to the position of the center of gravity.

[0041] To further optimize the solution, an anti-skid rubber pad 22 is fixed above the fork rod 4 to increase the anti-skid performance between the fork rod and the internal frame of the cab, improve the lifting stability, and at the same time play a certain shock-absorbing role, reducing damage to the connection of the internal frame of the cab.

[0042] According to a further optimized solution, a guide rod 24 is fixedly connected in the slide groove 3, a guide hole is opened on the fork rod 4, and the guide rod 24 is slidably connected to the guide hole.

[0043] To further optimize the solution, a connecting beam 23 is fixedly connected to one end of the cross beam 1 away from the mass block 15, and the bottom of the connecting beam 23 is fixedly connected to the longitudinal beam 2. The cross beam 1 and the connecting beam 23 are C-shaped; the C-shaped structure has relatively high strength and is relatively stable.

[0044] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0045] The embodiments described above are only descriptions of the preferred methods of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the protection scope determined by the claims of the present invention.

Claims

1. A cab lifting device, characterized in that: include: A crossbeam (1), a longitudinal beam (2) is arranged below the crossbeam (1), and two slide grooves (3) are provided on the longitudinal beam (2); Two fork rods (4), the two fork rods (4) are respectively slidably connected to the two slide grooves (3), and the two fork rods (4) are symmetrically distributed on both sides of the cross beam (1); two lead screws (5) are rotatably connected to the longitudinal beam (2), the two fork rods (4) are respectively threadedly connected to the two lead screws (5), and a driving component is provided on the longitudinal beam (2) and is transmission-connected to the two lead screws (5); A lifting connection piece, arranged on the crossbeam (1); A center of gravity adjustment component is arranged on the crossbeam (1), and when the cab is hoisted, the center of gravity adjustment component can keep the fork rod (4) in a horizontal state.

2. The cab lifting device according to claim 1, characterized in that: A connecting shaft (6) is rotatably connected to the longitudinal beam (2), and two ends of the connecting shaft (6) are respectively fixedly connected to the two lead screws (5). The driving component comprises a ratchet (7) fixedly connected to the connecting shaft (6). A handle (8) is rotatably connected to the connecting shaft (6), and a V-shaped bidirectional pawl (9) is rotatably connected to the handle (8). Two pawls in the bidirectional pawl (9) are respectively meshed with the ratchet (7), and a limit assembly detachably connected to the bidirectional pawl (9) is provided on the handle (8).

3. The cab lifting device according to claim 2, characterized in that: The limiting assembly comprises a groove (10) formed on the handle (8), the groove (10) being located at an end of the bidirectional pawl (9) away from the ratchet (7), a pressure column (11) being slidably connected in the groove (10), a compression spring (12) being fixedly connected between the pressure column (11) and the groove (10), and an end of the pressure column (11) away from the compression spring (12) extending out of the groove (10) and abutting against one side of the bidirectional pawl (9).

4. The cab lifting device according to claim 1, characterized in that: The center of gravity adjustment component comprises a limiting groove (13) provided at the top of the cross beam (1), a support rod (14) being slidably connected in the limiting groove (13), one end of the support rod (14) extending out of the limiting groove (13) and being fixedly connected to a mass block (15), a plurality of bolts (16) being threadedly connected on the cross beam (1), a plurality of limiting holes (17) being provided on the support rod (14) along the length direction, and the bolts (16) passing through the limiting groove (13) and the limiting holes (17) and being slidably connected to the limiting holes (17).

5. The cab lifting device according to claim 1, characterized in that: The hanging connection member comprises two bearing pins (18), and hanging plates (19) are respectively fixedly connected to the two sides of the crossbeam (1), and a plurality of hanging holes (20) are opened on the hanging plates (19). The bearing pin (18) passes through two opposite hanging holes (20) on the two hanging plates (19), and locking nuts (21) are respectively threadedly connected at both ends of the bearing pin (18), and the two hanging plates (19) are located between the two locking nuts (21).

6. The cab lifting device according to claim 1, characterized in that: An anti-skid rubber pad (22) is fixedly connected above the fork rod (4).

7. The cab lifting device according to claim 1, characterized in that: A guide rod (24) is fixedly connected in the slide groove (3), a guide hole is provided on the fork rod (4), and the guide rod (24) is slidably connected to the guide hole.

8. The cab lifting device according to claim 4, characterized in that: One end of the cross beam (1) away from the mass block (15) is fixedly connected to a connecting beam (23); the bottom of the connecting beam (23) is fixedly connected to the longitudinal beam (2); and the cross beam (1) and the connecting beam (23) are in a C shape.

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