Supporting arm for telescopic winch

Abstract

The supporting arm comprises a stand column fixedly installed on a base, a supporting plate is rotatably installed on the top of the stand column, the winch is fixedly connected to the supporting plate, a transmission box is fixedly installed on the top of the supporting plate, a speed reducing motor is fixedly installed on the outer wall of the transmission box, and the winch is fixedly connected to the speed reducing motor. A supporting pipe is fixedly installed on the outer wall of the transmission box, an inner rod is arranged at the end, away from the transmission box, of the supporting pipe in a penetrating mode, a linear driving mechanism driven by a gear motor is arranged in the supporting pipe, and the end, located in the supporting pipe, of the inner rod is connected with the linear driving mechanism. When the small winch is used, the winch is started, the steel wire rope can be wound or unwound, the height of the hook is controlled, objects can be conveniently hoisted or put down, the speed reduction motor is started to drive the linear driving mechanism, the length of the portion, extending out of the supporting pipe, of the inner rod can be adjusted, and therefore the hoisting operation range of the small winch is effectively widened; the use effect is good.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting equipment, in particular to a telescopic support arm for a winch. Background Art

[0002] A winch is a small and light lifting equipment that uses a drum-wound wire rope or chain to lift or pull heavy objects. It can lift vertically, and pull heavy objects horizontally or at an angle. In order to increase the lifting range of the winch, some small winches are often used in conjunction with a support arm. The support arm can guide and support the wire rope of the winch, thereby reducing restrictions on the installation position of the winch.

[0003] At present, the arm assemblies used in most small winches have fixed arm lengths and cannot be adjusted, which greatly limits the hoisting range of the winch. Therefore, we propose a telescopic winch arm. Utility Model Content

[0004] The purpose of the utility model is to provide a telescopic winch support arm to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A support arm for a telescopic winch comprises a column fixedly mounted on a base, a support plate rotatably mounted on the top of the column, a winch fixedly connected to the support plate, a transmission box fixedly mounted on the top of the support plate, a reduction motor fixedly mounted on the outer wall of the transmission box, a trustee fixedly mounted on the outer wall of the transmission box, an inner rod is passed through the end of the trustee away from the transmission box, a linear drive mechanism driven by the reduction motor is arranged in the trustee, one end of the inner rod located in the trustee is connected to the linear drive mechanism, one end of the inner rod located outside the trustee is fixedly mounted with a connecting seat, two guide wheels are mounted on the connecting seat, a wire rope is mounted on the winch, and the wire rope is connected to a hook after passing over the two guide wheels.

[0007] As a further solution of the utility model: the linear drive mechanism includes a screw rod located in the tube, one end of the screw rod is inserted into the transmission box and is transmission-connected to the output shaft of the reduction motor, and the screw rod is rotationally connected to the transmission box through a bearing seat, a nut is fitted on the screw rod, a blind hole is formed at one end of the inner rod located in the tube, one end of the screw rod is located in the blind hole, and the nut is fixedly connected to the end of the inner rod.

[0008] As a further solution of the utility model: one end of the screw located in the transmission box is fixedly connected to the first bevel gear, and the output shaft of the reduction motor is fixedly connected to the second bevel gear after passing through the transmission box, and the first bevel gear and the second bevel gear are meshed with each other.

[0009] As a further solution of the utility model: a guide block is fixedly connected to the inner wall of the opening at one end of the tube away from the transmission box, a guide groove is opened at the outer wall of the inner rod corresponding to the guide block, and the guide block is located in the guide groove.

[0010] As a further solution of the utility model: the top of the column is fixedly connected with a short shaft, the support plate is rotatably mounted on the short shaft, and the bottom of the support plate is rotatably connected to the column through a pressure bearing, the top of the short shaft passes through the support plate and is fixedly connected to a limiting block, the outer wall of the column is fixedly sleeved with a worm gear, the bottom of the support plate is rotatably connected with a worm through a bearing seat, the worm and the worm wheel are meshed with each other, and one end of the worm is fixedly connected to a handwheel.

[0011] As a further solution of the utility model: the top of the support plate is fixedly connected with an oblique support rod, and the oblique support rod is fixedly connected to the hosting tube through a plurality of connecting plates.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] When the utility model is in use, the winch is started to reel in or unreel the wire rope, thereby controlling the height of the hook for lifting or lowering objects, and the reduction motor is started to drive the linear drive mechanism, which can adjust the length of the inner rod extending out of the tube, thereby effectively improving the lifting operation range of the small winch and achieving good use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The utility model is a structural schematic diagram of a telescopic winch support arm.

[0015] Figure 2 for Figure 1 sectional view of .

[0016] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0017] Figure 4 for Figure 2 A partial enlarged view of .

[0018] Among them, the base 1, the column 2, the short shaft 3, the support plate 4, the pressure bearing 5, the limit block 6, the worm wheel 7, the worm 8, the handwheel 9, the transmission box 10, the trustee 11, the inner rod 12, the connecting seat 13, the guide wheel 14, the winch 15, the hook 16, the diagonal support rod 17, the connecting plate 18, the guide block 19, the guide groove 20, the blind hole 21, the screw 22, the nut 23, the first bevel gear 24, the reduction motor 25, and the second bevel gear 26. DETAILED DESCRIPTION

[0019] 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.

[0020] See also Figures 1 to 4 In the embodiment of the utility model, a telescopic winch support arm includes a column 2 fixedly mounted on a base 1, a support plate 4 is rotatably mounted on the top of the column 2, a winch 15 is fixedly connected to the support plate 4, a transmission box 10 is fixedly mounted on the top of the support plate 4, a reduction motor 25 is fixedly mounted on the outer wall of the transmission box 10, a trustee 11 is fixedly mounted on the outer wall of the transmission box 10, an inner rod 12 is penetrated at one end of the trustee 11 away from the transmission box 10, a linear drive mechanism driven by the reduction motor 25 is arranged in the trustee 11, one end of the inner rod 12 located in the trustee 11 is connected to the linear drive mechanism, and one end of the inner rod 12 located outside the trustee 11 is fixedly mounted with a connecting seat 13, two guide wheels 14 are mounted on the connecting seat 13, a steel wire rope is mounted on the winch 15, and the steel wire rope is connected to a hook 16 after passing around the two guide wheels 14.

[0021] By adopting the above scheme, the utility model can start the winch 15 when in use, so as to reel in or unreel the wire rope, thereby controlling the height of the hook 16 to facilitate lifting or lowering objects, and start the reduction motor 25 to drive the linear drive mechanism, so as to adjust the length of the inner rod 12 extending out of the tube 11, thereby effectively improving the lifting operation range of the small winch, and achieving good use effect.

[0022] Specific combination Figure 2-4 In one embodiment of the utility model, the linear drive mechanism includes a screw rod 22 located in the tube 11, one end of the screw rod 22 is inserted into the transmission box 10 and is connected to the output shaft of the reduction motor 25, and the screw rod 22 is rotatably connected to the transmission box 10 through a bearing seat, and a nut 23 is fitted on the screw rod 22. A blind hole 21 is formed at one end of the inner rod 12 located in the tube 11, and one end of the screw rod 22 is located in the blind hole 21. The nut 23 is fixedly connected to the end of the inner rod 12.

[0023] Furthermore, one end of the screw rod 22 located in the transmission box 10 is fixedly connected to a first bevel gear 24 , and the output shaft of the reduction motor 25 is fixedly connected to a second bevel gear 26 after passing through the transmission box 10 , and the first bevel gear 24 and the second bevel gear 26 are meshed with each other.

[0024] By starting the reduction motor 25, the first bevel gear 24 and the second bevel gear 26 can be used to drive the screw 22 to rotate, and then the screw 22 and the nut 23 can be used to drive the inner rod 12 to move along the length direction of the tube 11 to adjust the length of the inner rod 12 extending out of the tube 11.

[0025] Specific combination Figure 4 In one embodiment of the utility model, a guide block 19 is fixedly connected to the inner wall of the opening at one end of the tube 11 away from the transmission box 10, and a guide groove 20 is opened at the outer wall of the inner rod 12 corresponding to the guide block 19, and the guide block 19 is located in the guide groove 20.

[0026] By utilizing the cooperation between the guide block 19 and the guide groove 20 , the inner rod 12 can be guided on the tube 11 , thereby preventing the inner rod 12 and the nut 23 from rotating together with the screw rod 22 .

[0027] Specific combination Figure 2 and Figure 3 In one embodiment of the utility model, the top of the column 2 is fixedly connected with a short shaft 3, the support plate 4 is rotatably mounted on the short shaft 3, and the bottom of the support plate 4 is rotatably connected with the column 2 through a pressure bearing 5, the top of the short shaft 3 passes through the support plate 4 and is fixedly connected with a limiting block 6, the outer wall of the column 2 is fixedly sleeved with a worm gear 7, the bottom of the support plate 4 is rotatably connected with a worm 8 through a bearing seat, the worm 8 and the worm wheel 7 are meshed with each other, and one end of the worm 8 is fixedly connected with a handwheel 9.

[0028] By rotating the worm 8 through the hand wheel 9, the worm 8 can be rotated around the short shaft 3 by utilizing the cooperation between the worm 8 and the worm wheel 7, thereby driving the support plate 4 to rotate on the column 2, so as to facilitate the transfer of the lifted objects.

[0029] Specific combination Figure 1 In one embodiment of the utility model, the top of the support plate 4 is fixedly connected with a diagonal brace rod 17, and the diagonal brace rod 17 is fixedly connected to the hosting tube 11 through a plurality of connecting plates 18 to improve the connection strength between the hosting tube 11 and the support plate 4.

[0030] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A telescopic winch support arm, characterized in that: The invention comprises a column (2) fixedly mounted on a base (1), a support plate (4) rotatably mounted on the top of the column (2), a winch (15) fixedly connected to the support plate (4), a transmission box (10) fixedly mounted on the top of the support plate (4), a reduction motor (25) fixedly mounted on the outer wall of the transmission box (10), a trustee (11) fixedly mounted on the outer wall of the transmission box (10), an inner rod ( 12), a linear drive mechanism driven by a reduction motor (25) is arranged inside the tube (11), one end of the inner rod (12) located inside the tube (11) is connected to the linear drive mechanism, one end of the inner rod (12) located outside the tube (11) is fixedly installed with a connecting seat (13), two guide wheels (14) are installed on the connecting seat (13), a steel wire rope is installed on the winch (15), and the steel wire rope is connected to a hook (16) after passing over the two guide wheels (14).

2. The telescopic winch support arm according to claim 1, characterized in that: The linear drive mechanism comprises a screw rod (22) located in the tube (11), one end of the screw rod (22) is inserted into the transmission box (10) and is connected to the output shaft of the reduction motor (25) through transmission, and the screw rod (22) is rotatably connected to the transmission box (10) through a bearing seat, a nut (23) is sleeved on the screw rod (22), a blind hole (21) is formed at one end of the inner rod (12) located in the tube (11), one end of the screw rod (22) is located in the blind hole (21), and the nut (23) is fixedly connected to the end of the inner rod (12).

3. The telescopic winch support arm according to claim 2, characterized in that: One end of the screw rod (22) located in the transmission box (10) is fixedly connected to a first bevel gear (24); the output shaft of the reduction motor (25) is inserted into the transmission box (10) and is fixedly connected to a second bevel gear (26); the first bevel gear (24) and the second bevel gear (26) are meshed with each other.

4. The telescopic winch support arm according to claim 2, characterized in that: A guide block (19) is fixedly connected to the inner wall of an opening at one end of the tube (11) away from the transmission box (10), and a guide groove (20) is formed at a corresponding position between the outer wall of the inner rod (12) and the guide block (19), and the guide block (19) is located in the guide groove (20).

5. The telescopic winch support arm according to claim 1, characterized in that: The top of the column (2) is fixedly connected with a short shaft (3), the support plate (4) is rotatably sleeved on the short shaft (3), and the bottom of the support plate (4) is rotatably connected with the column (2) through a pressure bearing (5), the top of the short shaft (3) passes through the support plate (4) and is fixedly connected with a limiting block (6), the outer wall of the column (2) is fixedly sleeved with a worm wheel (7), the bottom of the support plate (4) is rotatably connected with a worm (8) through a bearing seat, the worm (8) and the worm wheel (7) are meshed with each other, and one end of the worm (8) is fixedly connected with a hand wheel (9).

6. The telescopic winch support arm according to claim 1, characterized in that: The top of the support plate (4) is fixedly connected with an oblique support rod (17), and the oblique support rod (17) is fixedly connected to the support tube (11) via a plurality of connecting plates (18).

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