Winding box for automobile crane

Abstract

The utility model discloses a winch box for an automobile crane, which relates to the field of winch boxes and comprises a bottom frame, a motor and a gear box are respectively mounted at the top of the bottom frame, and an oiling component is arranged inside the gear box. Through the arrangement of the oiling assembly, when a gear needs to be lubricated, a worker can screw out a locking bolt from a gear box firstly, then pull a sealing plate through a handle to enable the sealing plate to move out of the gear box, then rotate a lead screw through a rotating handle, and drive a movable seat to move upwards after the lead screw rotates, and then drive an oil storage tank to move upwards; and after the oil storage tank moves upwards and the bottom of the second gear is immersed into the oil storage tank, the worker does not rotate the lead screw any more, at the moment, the motor drives the driving shaft to rotate slowly, then the third gear, the second gear and the first gear rotate slowly, and after the second gear rotates continuously, lubricating oil in the oil storage tank can lubricate the second gear in all directions.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of winch box, concretely to a winch box for automobile crane. BACKGROUND

[0002] The winch box is one of the core transmission components of the automobile crane, is mainly used for controlling the winding and unwinding of the steel wire rope, realizes the lifting of the lifting hook, the driving of the variable amplitude or telescopic arm, the winch box is the transmission assembly integrated with the reduction mechanism, the clutch device, the brake and the winding drum, through the hydraulic or motor drive, the power is transmitted to the steel wire rope, and the winch box performance directly influences the hoisting efficiency, safety and stability of the crane.

[0003] According to the patent with the announcement number CN222476019U, a winch device of crane is disclosed, when the winch shaft of the winch device of crane rotates, the driving gear can be driven to rotate, the number of rotations of the driving gear is detected by the rotary encoder, so as to detect the number of rotations of the winch shaft, when the winch shaft rotates multiple turns to lower or lift the load, when the number of rotations of the winch shaft reaches the threshold value set in the controller, the controller can control the electric push rod to push the sliding block, so as to drive the moving frame and the brake seat to move left synchronously, and the brake seat is in friction with the brake pad to play a damping role, so that the load is buffered and decelerated when unloading, and the impact is avoided to be too large to damage the winch.

[0004] According to the above-mentioned patent content, by setting the oil storage hopper, the lubricating oil can fall onto the driving gear above the outlet pipe and the oil dripping port, so as to facilitate the work of lubricating the driving gear. Although this way can lubricate the gear, since the oil is dripped onto the driving gear, it is difficult to evenly apply the lubricating oil to the gear, only partial lubrication of the gear can be achieved, thereby reducing the lubrication efficiency of the gear and affecting the lubrication effect of the gear. UTILITY MODEL CONTENTS

[0005] Therefore, the utility model aims at providing a winch box for automobile crane to solve the technical problem of poor lubrication effect of the gear.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a winch box for automobile crane, comprising a chassis, a motor and a gear box are installed on the top of the chassis respectively, an oiling assembly is arranged in the inside of the gear box, and the oiling assembly comprises a lead screw installed in the inside of the gear box through a bearing, two telescopic rods installed below the inside of the gear box, a limiting rod installed above the inside of the gear box and a socket opened on one side of the gear box, a lifting seat is installed on the top end of the telescopic rod, a movable seat is sleeved on the outer wall of the lead screw, an oil storage tank is installed between the movable seat and the lifting seat, a sealing gasket is installed on the bottom of the sealing plate, and the sealing plate is inserted into the socket and extends into the inside of the gear box.

[0007] By adopting the above technical scheme, the cooperation of the sealing plate and the sealing gasket can shield the oil storage tank to prevent the lubricating oil inside the oil storage tank from spilling out.

[0008] Further, the sealing plate is further provided with a locking bolt extending into the gear box, and a handle is fixed to one side of the sealing plate.

[0009] By adopting the above technical scheme, the sealing plate can be limited when the locking bolt is screwed into the gear box to prevent the locking bolt from moving.

[0010] Further, the movable seat is threadedly connected with the lead screw, and the top end of the lead screw extends to the outside of the gear box and is provided with a handle.

[0011] By adopting the above technical scheme, the staff can conveniently rotate the lead screw through the handle, and the lead screw will move after being rotated.

[0012] Further, the inner part of the gear box is respectively provided with a first rotating shaft and a second rotating shaft through bearings, and the outer wall of the first rotating shaft is provided with a first gear.

[0013] By adopting the above technical scheme, the first rotating shaft is provided to facilitate the rotation of the first gear.

[0014] Further, the outer wall of the second rotating shaft is provided with a second gear, and the second gear is engaged with the first gear.

[0015] By adopting the above technical scheme, when the first gear is rotated, it will drive the second gear to rotate, and then drive the second rotating shaft to rotate.

[0016] Further, the output end of the motor is connected with a driving shaft extending into the gear box, and the end of the driving shaft is provided with a third gear, and the third gear is engaged with the first gear.

[0017] By adopting the above technical scheme, when the motor works, it will drive the driving shaft to rotate, and the driving shaft will drive the third gear to rotate, and then drive the first gear to rotate.

[0018] Further, the top of the base frame is further provided with a first bearing seat and a second bearing seat, and the first bearing seat is connected with the driving shaft through a bearing.

[0019] By adopting the above technical scheme, the first bearing seat can support the driving shaft to improve the stability of the driving shaft when rotating.

[0020] Further, the outer wall of the second rotating shaft is provided with a winding drum, and one end of the second rotating shaft is connected with the second bearing seat through a bearing.

[0021] By adopting the technical scheme, the second bearing seat can support the second rotating shaft and the winding drum, and the stability of the winding drum and the second rotating shaft during rotation is improved.

[0022] Further, the top of the gear box is connected with an oil inlet pipe, and the oil inlet of the oil inlet pipe is threadedly connected with a threaded plug.

[0023] By adopting the technical scheme, when it is needed to add lubricating oil into the oil storage tank, the staff can rotate the threaded plug, and the threaded plug is rotated out of the oil inlet pipe, and at this time, the lubricating oil can be added into the oil storage tank through the oil inlet pipe.

[0024] Further, the first gear, the second gear and the third gear are located directly above the oil storage tank, and the thicknesses of the first gear, the second gear and the third gear are all less than the width of the oil storage tank.

[0025] By adopting the technical scheme, the second gear can be immersed into the oil storage tank, so that the second gear can be lubricated.

[0026] In summary, the utility model mainly has the following beneficial effects:

[0027] 1. When it is needed to lubricate the gears, the staff can first rotate the locking bolt out of the gear box, then pull the sealing plate through the handle, so that the sealing plate is moved out of the gear box, then the staff rotates the handle to move the movable seat and the oil storage tank upward, and when the bottom of the second gear is immersed into the oil storage tank, the staff stops rotating the threaded rod, at this time, the motor drives the driving shaft to rotate slowly, so that the third gear, the second gear and the first gear rotate slowly, and the lubricating oil in the oil storage tank can lubricate the second gear in all directions, the lubricating efficiency of the second gear is improved, and the lubricating uniformity is improved, and when the second gear is engaged with the first gear, the first gear and the third gear are engaged, the first gear and the third gear can be lubricated, so that the lubricating efficiency of the gears is improved, and the situation that the lubricating oil is dropped on the gears to cause uneven lubrication of the gears is avoided.

[0028] 2. The sealing plate, the sealing gasket and the locking bolt are arranged, the sealing plate and the sealing gasket can shield the oil storage tank, so that the lubricating oil in the oil storage tank is prevented from spilling out of the oil storage tank in the case that the oil is not added, and the locking bolt can limit the sealing plate, so that the sealing plate is prevented from moving randomly. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 It is a whole three-dimensional structure schematic view of the utility model;

[0030] Figure 2The utility model discloses a gear box positive section structure schematic drawing.

[0031] Figure 3 The utility model discloses a gear box section structure schematic drawing.

[0032] Figure 4 The utility model discloses an enclosed plate structure schematic drawing.

[0033] Figure 5 The utility model discloses an oil storage tank structure schematic drawing.

[0034] Figure 6 The utility model discloses a third gear structure schematic drawing.

[0035] In the drawing: 1, underframe, 2, motor, 3, gear box, 4, first rotation axis, 5, first bearing seat, 6, first gear, 7, second gear, 8, second rotation axis, 9, oil feeding subassembly, 901, screw rod, 902, movable seat, 903, oil storage tank, 904, telescopic link, 905, lifting seat, 906, spigot, 907, enclosed plate, 908, locking bolt, 909, sealing pad, 910, handle, 911, limiting rod, 912, oil discharge pipe, 913, valve, 10, third gear, 11, winding drum, 12, second bearing seat, 13, drive shaft, 14, threaded plug, 15, oil inlet pipe. DETAILED DESCRIPTION

[0036] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. The embodiments described below with reference to the drawings are exemplary and are used for explaining the utility model only, and cannot be understood as the limitation of the utility model.

[0037] The embodiments of the utility model will be described below according to the overall structure of the utility model.

[0038] Embodiment one:

[0039] A kind of hoist box for automobile crane, such as Figures 1-6As shown, the system includes a base frame 1. A motor 2 and a gearbox 3 are mounted on the top of the base frame 1. An oiling assembly 9 is installed inside the gearbox 3. A first rotating shaft 4 and a second rotating shaft 8 are mounted inside the gearbox 3 via bearings. A first gear 6 is mounted on the outer wall of the first rotating shaft 4, and a second gear 7 is mounted on the outer wall of the second rotating shaft 8. The second gear 7 meshes with the first gear 6. When the first gear 6 rotates, it drives the second gear 7 to rotate, which in turn drives the second rotating shaft 8 to rotate. The output end of the motor 2 is connected to a drive shaft 13 that extends into the gearbox 3. A third gear 10 is mounted on the end of the drive shaft 13, and the third gear 10 meshes with the first gear 6. When the motor 2 is working, it drives the drive shaft 13 to rotate, which in turn drives the third gear 10 to rotate, which in turn drives the first gear 6 to rotate.

[0040] See Figures 1-5 The top of the base frame 1 is also equipped with a first bearing seat 5 and a second bearing seat 12. The first bearing seat 5 is connected to the drive shaft 13 through a bearing. The first bearing seat 5 can support the drive shaft 13 to improve the stability of the drive shaft 13 when rotating. The outer wall of the second rotating shaft 8 is equipped with a drum 11. One end of the second rotating shaft 8 is connected to the second bearing seat 12 through a bearing. The second bearing seat 12 can support the second rotating shaft 8 and the drum 11 to improve the stability of the drum 11 and the second rotating shaft 8 when rotating.

[0041] Specifically, the oiling assembly 9 includes a lead screw 901 mounted inside the gearbox 3 via bearings, two telescopic rods 904 mounted at the lower part of the gearbox 3, a limiting rod 911 mounted at the upper part of the gearbox 3, and an insertion port 906 on one side of the gearbox 3. When the top of the movable seat 902 contacts the bottom end of the limiting rod 911, it prevents the movable seat 902 from moving upwards further, thereby preventing the oil reservoir 903 from moving upwards excessively and thus preventing the oil reservoir 903 from colliding with the gear. A lifting seat 905 is mounted on the top of the telescopic rods 904. The movable seat 902 is sleeved on the outer wall of the lead screw 901, and the oil reservoir 903 is installed between the movable seat 902 and the lifting seat 905. The movable seat 902 is threadedly connected to the lead screw 901. The top of the lead screw 901 extends to the outside of the gearbox 3 and is equipped with a handle 910, which allows the operator to rotate the lead screw 901 through the handle 910. After rotation, the movable seat 902 will move. The first gear 6, the second gear 7, and the third gear 10 are all located directly above the oil tank 903. The thickness of the first gear 6, the second gear 7, and the third gear 10 is less than the width of the oil tank 903 so that the second gear 7 can be immersed in the oil tank 903 for lubrication. The bottom of the oil tank 903 is connected to an oil drain pipe 912 that passes through the gearbox 3 and the base frame 1. A valve 913 is installed at the bottom of the oil drain pipe 912. When the oil tank 903 moves, it can drive the oil drain pipe 912 to move. When the lubricating oil inside the oil tank 903 needs to be replaced, simply open the valve 913 to allow the lubricating oil inside the oil tank 903 to be discharged through the oil drain pipe 912. Under normal circumstances, the valve 913 is in the closed state to prevent the lubricating oil inside the oil tank 903 from being discharged arbitrarily through the oil drain pipe 912.

[0042] Example 2:

[0043] Based on the above embodiment one, when the gear is not lubricated, the gear is not located inside the oil reservoir 903. At this time, the top of the oil reservoir 903 needs to be sealed to prevent the lubricating oil inside the oil reservoir 903 from splashing out. Therefore, the following structure is set up.

[0044] Specifically, a sealing plate 907 extending into the gearbox 3 is inserted inside the socket 906, and a sealing gasket 909 is installed at the bottom of the sealing plate 907. The bottom of both the sealing gasket 909 and the sealing plate 907 is in contact with the top of the oil reservoir 903. The width of the sealing gasket 909 and the sealing plate 907 is the same as the width of the oil reservoir 903. The cooperation of the sealing plate 907 and the sealing gasket 909 can cover the oil reservoir 903 and prevent the lubricating oil inside the oil reservoir 903 from splashing out. A locking bolt 908 extending into the gearbox 3 is also installed on the sealing plate 907. A handle is fixed on one side of the sealing plate 907. When the locking bolt 908 is screwed into the gearbox 3, it can limit the sealing plate 907 and prevent the locking bolt 908 from moving. The sealing plate 907 is adapted to the socket 906, and the sealing plate 907 is detachably connected to the gearbox 3 through the locking bolt 908.

[0045] Example 3:

[0046] Based on the above embodiment 1, the following structure will be set up to facilitate the addition of lubricating oil into the oil reservoir 903.

[0047] See Figures 1-4 The top of the gearbox 3 is connected to an oil inlet pipe 15, and the oil inlet of the oil inlet pipe 15 is threadedly connected to a threaded plug 14. The oil inlet pipe 15 is located directly above the oil reservoir 903. When it is necessary to add lubricating oil into the oil reservoir 903, the operator can rotate the threaded plug 14 to unscrew the threaded plug 14 from the oil inlet pipe 15. At this time, lubricating oil can be added into the oil reservoir 903 through the oil inlet pipe 15.

[0048] The working principle of this utility model is as follows: First, the operator can install the winch box and connect the power supply, and rotate the threaded plug 14 to unscrew the threaded plug 14 from the oil inlet pipe 15. Then, unscrew the locking bolt 908 from the gearbox 3 and remove the sealing plate 907 from the gearbox 3 so that it no longer blocks the oil storage tank 903. Then, lubricating oil is added into the oil storage tank 903 through the oil inlet pipe 15. After the addition is completed, the threaded plug 14 is screwed back into the oil inlet pipe 15 to block the oil inlet pipe 15. Then, the sealing plate 907 is reinserted into the gearbox 3 to block the oil storage tank 903. Finally, the sealing plate 907 is locked and limited by the locking bolt 908.

[0049] When working, motor 2 can be started. Motor 2 can drive the third gear 10 to rotate. The third gear 10 will drive the first gear 6 to rotate, then drive the second gear 7 to rotate, then drive the second shaft 8 to rotate, then drive the drum 11 to rotate, and then wind or release the rope.

[0050] When gear lubrication is required, the operator first unscrews the locking bolt 908 from the gearbox 3, then pulls the sealing plate 907 by the handle to remove it from the gearbox 3. Next, the operator rotates the lead screw 901 by the handle 910. The rotation of the lead screw 901 causes the movable seat 902 to move upwards, which in turn moves the oil reservoir 903 upwards. Once the bottom of the second gear 7 is immersed in the oil reservoir 903, the operator stops rotating the lead screw 901. At this point, the motor 2 drives the drive shaft 13 to rotate slowly, causing the third gear 10, the second gear 7, and the first gear 6 to rotate slowly. As the second gear 7 continues to rotate, the lubricating oil in the oil reservoir 903... The second gear 7 can be lubricated from all directions, improving the lubrication efficiency of the second gear 7. At the same time, as the second gear 7 meshes with the first gear 6, the first gear 6 meshes with the third gear 10, which can lubricate the first gear 6 and the third gear 10. After lubrication is completed or the screw 901 is rotated in the reverse direction, the oil tank 903 moves down, so that the second gear 7 is no longer immersed in the oil tank 903. After the oil tank 903 moves down and resets, the operator waits for a period of time before inserting the sealing plate 907 back into the gearbox 3 to cover the top of the oil tank 903. After sealing, the locking bolt 908 is screwed into the gearbox 3 to lock the sealing plate 907.

[0051] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A winch box for a truck crane, comprising a base frame (1), characterized in that: The top of the base frame (1) is equipped with a motor (2) and a gearbox (3). The gearbox (3) is equipped with an oiling assembly (9). The oiling assembly (9) includes a lead screw (901) installed inside the gearbox (3) via a bearing, two telescopic rods (904) installed at the bottom inside the gearbox (3), a limiting rod (911) installed at the top inside the gearbox (3), and an insertion port (906) opened on one side of the gearbox (3). The top of the telescopic rod (904) is equipped with a lifting seat (905). The outer wall of the lead screw (901) is fitted with a movable seat (902). An oil storage tank (903) is installed between the movable seat (902) and the lifting seat (905). A sealing plate (907) extending into the gearbox (3) is inserted into the insertion port (906). A sealing gasket (909) is installed at the bottom of the sealing plate (907).

2. The winch box for a truck crane according to claim 1, characterized in that: The sealing plate (907) is also equipped with locking bolts (908) that extend into the gearbox (3), and a handle is fixed to one side of the sealing plate (907).

3. The winch box for a truck crane according to claim 1, characterized in that: The movable seat (902) is threadedly connected to the lead screw (901), the top end of which extends to the outside of the gearbox (3) and is fitted with a handle (910).

4. A winch box for a truck crane according to claim 1, characterized in that: The gearbox (3) has a first rotating shaft (4) and a second rotating shaft (8) installed inside via bearings, and a first gear (6) is installed on the outer wall of the first rotating shaft (4).

5. A winch box for a truck crane according to claim 4, characterized in that: The outer wall of the second shaft (8) is fitted with a second gear (7), which meshes with the first gear (6).

6. A winch box for a truck crane according to claim 5, characterized in that: The output end of the motor (2) is connected to a drive shaft (13) extending into the gearbox (3), and a third gear (10) is installed at the end of the drive shaft (13), and the third gear (10) meshes with the first gear (6).

7. A winch box for a truck crane according to claim 1, characterized in that: The top of the base frame (1) is also equipped with a first bearing seat (5) and a second bearing seat (12), and the first bearing seat (5) is connected to the drive shaft (13) by a bearing.

8. A winch box for a truck crane according to claim 4, characterized in that: A drum (11) is installed on the outer wall of the second shaft (8), and one end of the second shaft (8) is connected to the second bearing seat (12) through a bearing.

9. A winch box for a truck crane according to claim 1, characterized in that: The top of the gearbox (3) is connected to an oil inlet pipe (15), and the oil inlet of the oil inlet pipe (15) is threadedly connected to a threaded plug (14).

10. A winch box for a truck crane according to claim 6, characterized in that: The first gear (6), the second gear (7) and the third gear (10) are all located directly above the oil tank (903), and the thickness of the first gear (6), the second gear (7) and the third gear (10) is less than the width of the oil tank (903).

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