Maintenance platform for excavator rotary table

Abstract

The maintenance platform comprises supporting frames, supporting blocks, a lifting mechanism, a moving block and a moving mechanism, the number of the supporting frames is two, the two supporting frames are symmetrical to each other, self-locking wheels are installed at the two ends of each supporting frame, the supporting blocks are arranged in the supporting frames in a sliding mode, moving grooves are formed in the supporting blocks, and the moving mechanism is arranged in the moving grooves. The lifting mechanism is arranged on the supporting frame and used for controlling the supporting blocks to conduct height adjustment, the moving blocks are arranged in the moving grooves in a sliding mode, a moving plate is fixedly arranged between the two moving blocks, a protective cover is fixedly arranged on the moving plate, and the moving mechanism is arranged in the moving grooves and used for adjusting the positions of the moving blocks. According to the maintenance platform for the excavator rotary table, the problem that the maintenance position of an operator is inconvenient to adjust in the prior art is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of maintenance platforms, in particular to a maintenance platform for an excavator turntable. Background Art

[0002] An excavator, also known as a backhoe, is an earth-moving machine that uses a bucket to dig materials above or below the supporting surface and load them into transport vehicles or unload them to a stockpile.

[0003] When performing daily maintenance on excavators, especially excavator turntables, the process is complicated and difficult. Construction workers need to dismantle it or dismantle the upper part of the excavator and climb up for maintenance, which poses certain safety hazards and is inconvenient to construct.

[0004] In order to facilitate the maintenance of the excavator turntable, after searching, a utility model patent with publication number CN214144599U was found, which discloses a maintenance platform for the excavator turntable, including a maintenance platform, a rear anti-falling mesh plate, anti-falling mesh plates on both sides and a support frame, wherein the rear anti-falling mesh plate is fixedly connected to the rear side wall of the maintenance platform, the anti-falling mesh plates on both sides are fixedly connected to the side walls on both sides of the maintenance platform, an anti-falling net is provided between the anti-falling mesh plates on both sides and the rear anti-falling mesh plate, the anti-falling net is fixedly connected between the anti-falling mesh plates on both sides and the rear anti-falling mesh plate by ropes, a hydraulic rod is installed on the top of the support frame, the support frame is connected to the bottom of the maintenance platform by the hydraulic rod, the inner side wall of the support frame is fixedly connected to a connecting rod, the connecting rod rotating shaft is connected to a roller, and the bottom of the support frame is connected to a moving wheel.

[0005] The above-mentioned prior art can drive the operator to move to the top of the excavator turntable for maintenance work through the work of the hydraulic rod. However, when the excavator turntable is located on both sides of the maintenance platform for maintenance, it is necessary to push the maintenance platform to move, which requires the operator to climb down from the maintenance platform, and then move the maintenance platform to the top of the excavator turntable for maintenance after it moves to a suitable position. This has a low maintenance efficiency at different positions and is not convenient enough. Utility Model Content

[0006] In view of the deficiencies of the prior art, the utility model provides a maintenance platform for an excavator turntable to solve the problem in the background art that the prior art is inconvenient for adjusting the maintenance position of an operator.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a maintenance platform for an excavator turntable, comprising a support frame, a support block, a lifting mechanism, a moving block and a moving mechanism, the support frame being provided in two, the two support frames being symmetrical to each other, self-locking wheels being installed at both ends of the support frame, the support block being slidably arranged in the support frame, a moving groove being provided on the support block, the lifting mechanism being arranged on the support frame for controlling the support block for height adjustment, the moving block being slidably arranged in the moving groove, a moving plate being fixedly arranged between the two moving blocks, a protective cover being fixedly arranged on the moving plate, and the moving mechanism being arranged in the moving groove for adjusting the position of the moving block.

[0008] Preferably, the lifting mechanism comprises:

[0009] A lifting slot, the lifting slot is arranged on two opposite side walls of the support frame, a lifting block is slidably arranged in the lifting slot, and the lifting block is fixedly connected to the support block;

[0010] a first threaded rod, the first threaded rod being rotatably disposed in the lifting slot, and the first threaded rod penetrating the lifting block through threaded engagement;

[0011] A synchronous rotation mechanism is arranged in the support frame and is used to control the two first threaded rods in the same support frame to rotate synchronously.

[0012] Furthermore, the synchronous rotation mechanism comprises:

[0013] A first cavity, wherein the first cavity is disposed in the support frame;

[0014] A first belt pulley, wherein two first belt pulleys are rotatably disposed in the first cavity, and the first threaded rod is fixedly connected to adjacent first belt pulleys;

[0015] A first belt, the first belt being arranged for transmission between the two first belt pulleys;

[0016] A driving mechanism is disposed in the supporting frame and is used to control the plurality of first pulleys to rotate synchronously.

[0017] Furthermore, the driving mechanism comprises:

[0018] A driving housing, wherein the driving housing is fixedly arranged on the supporting frame, a first bevel gear is rotatably arranged on the inner bottom wall of the driving housing, and a driving rod is fixedly arranged between the first bevel gear and the first pulley adjacent thereto;

[0019] A second bevel gear, the second bevel gear is rotatably arranged on the side wall of the driving housing, the second bevel gear is meshed with the first bevel gear, and a driving column is fixedly arranged between the two second bevel gears;

[0020] A first motor is fixedly disposed on one of the drive housings, and an output end of the first motor is fixedly connected to the adjacent second bevel gear.

[0021] Furthermore, the moving mechanism comprises:

[0022] a second threaded rod, the second threaded rod being rotatably disposed in the moving groove, and the second threaded rod penetrating the moving block through threaded engagement;

[0023] A second cavity, wherein the second cavity is opened at one side of the moving groove, a third bevel gear is rotatably provided on a side wall of the second cavity, and the third bevel gear is fixedly connected to the second threaded rod;

[0024] A fourth bevel gear, the fourth bevel gear is rotatably disposed on the inner top wall of the second cavity, the fourth bevel gear is meshed with the third bevel gear, a first driving opening is formed on the fourth bevel gear, and a second driving opening is formed on the side wall of the second cavity;

[0025] A driving assembly is arranged on the supporting frame and is used to control the two fourth bevel gears to rotate synchronously.

[0026] On the basis of the above scheme, the driving component comprises:

[0027] A driving cover, wherein the driving cover is fixedly arranged on the two supporting frames, a second belt pulley is fixedly arranged between the driving cover and the driving housing, and a second belt is transmitted between the second belt pulleys;

[0028] A second motor, wherein the second motor is fixedly disposed on the driving cover, and an output end of the second motor is fixedly connected to the adjacent second pulley;

[0029] A positioning block, the positioning block is fixedly arranged on the supporting frame;

[0030] A driving prism, wherein the driving prism is rotatably disposed between the positioning block and the side wall of the support frame, the driving prism passes through the first driving port and the second driving port, and the driving prism is slidably connected to the side wall of the first driving port;

[0031] A positioning rod is fixedly arranged between the driving prism and the adjacent second pulley.

[0032] It should also be noted that a controller is installed on the side wall of the protective cover, and the controller is electrically connected to the first motor and the second motor respectively. The controller can adopt a DKC-1A controller.

[0033] Compared with the prior art, the utility model provides a maintenance platform for an excavator turntable, which has the following beneficial effects:

[0034] 1. In the utility model, through the setting of the lifting mechanism, after the operator stands in the protective cover, the first motor can drive the two second bevel gears to rotate synchronously, and then the meshing of the second bevel gear and the first bevel gear drives the first bevel gear and the adjacent first pulley to rotate synchronously, and at the same time, the first pulley and the first belt conduction drive multiple first threaded rods to rotate synchronously, and then the first threaded rod and the lifting block are matched with the thread to drive the lifting block, the support block and the moving block to adjust the height, so that the operator is lifted above the excavator turntable, and the operator can move on the moving plate, so as to facilitate maintenance operations;

[0035] 2. In the utility model, through the setting of the moving mechanism, the operation of the second motor can drive the second pulley to rotate, and at the same time, the two driving prisms can be driven to rotate through the conduction of the second pulley and the second belt, so that the fourth bevel gear can be driven to rotate through the sliding cooperation relationship between the driving prism and the first driving port, and then the third bevel gear and the second threaded rod can be driven to rotate synchronously through the meshing relationship between the fourth bevel gear and the third bevel gear, so that the moving block and the moving plate can be driven to move through the thread cooperation between the second threaded rod and the moving block, so as to facilitate the adjustment of the maintenance position of the operator;

[0036] 3. In the utility model, through the arrangement of the support frame, the support block, the lifting mechanism, the moving block and the moving mechanism, it is convenient to drive the moving plate to adjust its height through the operation of the lifting mechanism, and at the same time drive the moving plate to move in the horizontal direction through the operation of the moving mechanism, so as to facilitate the adjustment of the maintenance position of the operator standing on the moving plate, thereby solving the problem that the prior art is inconvenient to adjust the maintenance position of the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 This is a schematic diagram of the structure of this application;

[0038] Figure 2 This is a structural diagram of another perspective of this application;

[0039] Figure 3 This is a schematic diagram of the cross-sectional structure of the mobile mechanism of this application;

[0040] Figure 4 This is a cross-sectional structural diagram of the lifting mechanism of this application;

[0041] Figure 5 This is a schematic diagram of the maintenance platform structure for this application.

[0042] In the figure: 1, support frame; 2, self-locking wheel; 3, support block; 4, moving block; 5, moving plate; 6, lifting block; 7, first threaded rod; 8, first pulley; 9, driving housing; 10, first bevel gear; 11, second bevel gear; 12, driving column; 13, first motor; 14, second threaded rod; 15, third bevel gear; 16, fourth bevel gear; 17, driving cover; 18, second pulley; 19, second motor; 20, driving prism; 21, protective cover; 22, maintenance platform. DETAILED DESCRIPTION

[0043] 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.

[0044] See also Figure 1-Figure 4 A maintenance platform for an excavator turntable comprises a support frame 1, a support block 3, a lifting mechanism, a moving block 4 and a moving mechanism. The support frame 1 is provided in two, and the two support frames 1 are symmetrical to each other. Self-locking wheels 2 are installed at both ends of the support frame 1. The support block 3 is slidably arranged in the support frame 1, and a moving groove is provided on the support block 3. The lifting mechanism is arranged on the support frame 1 for controlling the height adjustment of the support block 3. The moving block 4 is slidably arranged in the moving groove, and a moving plate 5 is fixedly arranged between the two moving blocks 4. A protective cover is fixedly arranged on the moving plate 5. The moving mechanism is arranged in the moving groove for adjusting the position of the moving block 4.

[0045] Reference Figure 1 , Figure 2 and Figure 4 The lifting mechanism includes a lifting groove, a first threaded rod 7 and a synchronous rotation mechanism. The lifting groove is opened on two opposite side walls of the support frame 1. A lifting block 6 is slidably arranged in the lifting groove. The lifting block 6 is fixedly connected to the support block 3. The first threaded rod 7 is rotatably arranged in the lifting groove. The first threaded rod 7 penetrates the lifting block 6 through threaded cooperation. The synchronous rotation mechanism is arranged in the support frame 1, and is used to control the two first threaded rods 7 in the same support frame 1 to rotate synchronously.

[0046] Specifically, after the operator climbs into the protective cover, the operator can control the rotation of the first threaded rod 7 through the operation of the synchronous rotation mechanism, and at the same time, the lifting block 6, the support block 3 and the moving block 4 are driven to adjust the height through the thread cooperation between the first threaded rod 7 and the lifting block 6, thereby facilitating the adjustment of the maintenance height of the operator.

[0047] Reference Figure 1 , Figure 2 and Figure 4 The synchronous rotation mechanism includes a first cavity, a first pulley 8, a first belt and a driving mechanism. The first cavity is opened in the support frame 1. Two first pulleys 8 are rotatably arranged in the first cavity. The first threaded rod 7 is fixedly connected to the adjacent first pulley 8. A first belt is transmitted between the two first pulleys 8. The driving mechanism is arranged in the support frame 1 and is used to control multiple first pulleys 8 to rotate synchronously. The driving mechanism includes a driving housing 9, a second bevel gear 11 and a first motor 13. The driving housing 9 is fixedly arranged on the support frame 1. The inner bottom wall of the driving housing 9 is rotatably arranged with a first bevel gear 10. A driving rod is fixedly arranged between the first bevel gear 10 and the adjacent first pulley 8. The second bevel gear 11 is rotatably arranged on the side wall of the driving housing 9. The second bevel gear 11 is meshed with the first bevel gear 10. A driving column 12 is fixedly arranged between the two second bevel gears 11. The first motor 13 is fixedly arranged on one of the driving housings 9, and the output end of the first motor 13 is fixedly connected to the adjacent second bevel gear 11.

[0048] Specifically, the operator controls the first motor 13 to work, and the first motor 13 drives the two second bevel gears 11 to rotate synchronously, and then drives the first bevel gear 10 and the adjacent first pulley 8 to rotate synchronously through the engagement of the second bevel gear 11 with the first bevel gear 10, and at the same time drives the multiple first threaded rods 7 to rotate synchronously through the conduction of the first pulley 8 and the first belt.

[0049] Reference Figure 1-Figure 5The moving mechanism includes a second threaded rod 14, a second cavity, a fourth bevel gear 16 and a driving assembly. The second threaded rod 14 is rotatably arranged in the moving groove. The second threaded rod 14 penetrates the moving block 4 through threaded cooperation. The second cavity is opened on one side of the moving groove. The side wall of the second cavity is rotatably arranged with a third bevel gear 15. The third bevel gear 15 is fixedly connected to the second threaded rod 14. The fourth bevel gear 16 is rotatably arranged on the inner top wall of the second cavity. The fourth bevel gear 16 is meshed with the third bevel gear 15. A first driving port is opened on the fourth bevel gear 16, and a second driving port is opened on the side wall of the second cavity. The driving assembly is arranged on the support frame 1 for controlling the two fourth bevel gears 16 to rotate synchronously. The driving assembly includes a driving cover 17, a second motor 19, a positioning block, and a driving prism. 20 and a positioning rod, a driving cover 17 is fixedly arranged on the two support frames 1, a second pulley 18 is fixedly arranged between the driving cover 17 and the driving shell 9, a second belt is transmitted between the second pulley 18, a second motor 19 is fixedly arranged on the driving cover 17, and the output end of the second motor 19 is fixedly connected to the adjacent second pulley 18, a positioning block is fixedly arranged on the support frame 1, a driving prism 20 is rotatably arranged between the positioning block and the side wall of the support frame 1, the driving prism 20 passes through the first driving port and the second driving port, the driving prism 20 is slidably connected to the side wall of the first driving port, the positioning rod is fixedly arranged between the driving prism 20 and the adjacent second pulley 18, and a controller is installed on the side wall of the protective cover, and the controller is electrically connected to the first motor 13 and the second motor 19 respectively.

[0050] Specifically, the operator controls the second motor 19 to work, and the work of the second motor 19 can drive the second pulley 18 to rotate. At the same time, the two driving prisms 20 can be driven to rotate through the second pulley 18 and the transmission of the second belt, so that the fourth bevel gear 16 can be driven to rotate through the sliding cooperation relationship between the driving prism 20 and the first driving port, and then the third bevel gear 15 and the second threaded rod 14 can be driven to rotate synchronously through the meshing relationship between the fourth bevel gear 16 and the third bevel gear 15, so that the moving block 4 and the moving plate 5 can be driven to move through the thread cooperation between the second threaded rod 14 and the moving block 4, so as to facilitate the adjustment of the operator's maintenance position.

[0051] It should also be noted that the movable plate 5 and the protective cover 21 as a whole form a maintenance platform 22. Construction workers can walk on the movable plate 5 to repair the excavator turntable. The protective cover 21 protects the construction workers during their movement, thereby preventing them from falling from the movable plate 5.

[0052] To sum up, after the operator climbs into the protective cover, the operator controls the first motor 13 to work, and the first motor 13 drives the two second bevel gears 11 to rotate synchronously, and then drives the first bevel gear 10 and the adjacent first pulley 8 to rotate synchronously through the engagement of the second bevel gear 11 with the first bevel gear 10, and at the same time drives the plurality of first threaded rods 7 to rotate synchronously through the conduction of the first pulley 8 and the first belt, and at the same time drives the lifting block 6, the support block 3 and the moving block 4 to adjust the height through the thread cooperation of the first threaded rod 7 and the lifting block 6, so as to facilitate the adjustment of the maintenance height of the operator. At this time, the operator can move on the moving plate 5 and repair the excavator turntable. When encountering maintenance that cannot be reached When the excavator is in the maintenance position, the operator controls the second motor 19 to work, and the work of the second motor 19 can drive the second pulley 18 to rotate. At the same time, the two driving prisms 20 can be driven to rotate through the second pulley 18 and the transmission of the second belt, so that the fourth bevel gear 16 can be driven to rotate through the sliding cooperation relationship between the driving prism 20 and the first driving port, and then the third bevel gear 15 and the second threaded rod 14 can be driven to rotate synchronously through the meshing relationship between the fourth bevel gear 16 and the third bevel gear 15, so that the moving block 4 and the moving plate 5 can be driven to move through the thread cooperation between the second threaded rod 14 and the moving block 4, so that the operator's maintenance position can be adjusted, so that different positions of the excavator turntable can be repaired.

[0053] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A maintenance platform for an excavator turntable, characterized in that: include: A support frame (1), wherein two support frames (1) are provided, the two support frames (1) are symmetrical to each other, and self-locking wheels (2) are installed at both ends of the support frame (1); A support block (3), the support block (3) being slidably arranged in the support frame (1), and a moving groove being provided on the support block (3); A lifting mechanism, the lifting mechanism being arranged on the support frame (1) and being used for controlling the support block (3) to adjust its height; A moving block (4), the moving block (4) being slidably disposed in the moving groove, a moving plate (5) being fixedly disposed between two of the moving blocks (4), and a protective cover being fixedly disposed on the moving plate (5); A moving mechanism, the moving mechanism is arranged in the moving groove and is used to adjust the position of the moving block (4).

2. A maintenance platform for an excavator turntable according to claim 1, characterized in that: The lifting mechanism comprises: A lifting groove, the lifting groove being arranged on two opposite side walls of the support frame (1), a lifting block (6) being slidably arranged in the lifting groove, the lifting block (6) being fixedly connected to the support block (3); A first threaded rod (7), the first threaded rod (7) being rotatably disposed in the lifting slot, the first threaded rod (7) penetrating the lifting block (6) by means of threaded engagement; A synchronous rotation mechanism, wherein the synchronous rotation mechanism is arranged in the support frame (1) and is used to control the two first threaded rods (7) in the same support frame (1) to rotate synchronously.

3. A maintenance platform for an excavator turntable according to claim 2, characterized in that: The synchronous rotation mechanism comprises: A first cavity, the first cavity being opened in the support frame (1); A first belt pulley (8), wherein two first belt pulleys (8) are rotatably disposed in the first cavity, and the first threaded rod (7) is fixedly connected to adjacent first belt pulleys (8); A first belt, the first belt being arranged for transmission between the two first belt pulleys (8); A driving mechanism, the driving mechanism is arranged in the support frame (1) and is used to control the plurality of first pulleys (8) to rotate synchronously.

4. A maintenance platform for an excavator turntable according to claim 3, characterized in that: The driving mechanism comprises: A drive housing (9), the drive housing (9) being fixedly arranged on the support frame (1), a first bevel gear (10) being rotatably arranged on the inner bottom wall of the drive housing (9), and a drive rod being fixedly arranged between the first bevel gear (10) and the adjacent first pulley (8); a second bevel gear (11), the second bevel gear (11) being rotatably disposed on a side wall of the drive housing (9), the second bevel gear (11) being meshed with the first bevel gear (10), and a drive column (12) being fixedly disposed between the two second bevel gears (11); A first motor (13), wherein the first motor (13) is fixedly arranged on one of the drive housings (9), and an output end of the first motor (13) is fixedly connected to the adjacent second bevel gear (11).

5. A maintenance platform for an excavator turntable according to claim 4, characterized in that: The moving mechanism comprises: a second threaded rod (14), the second threaded rod (14) being rotatably disposed in the movable groove, the second threaded rod (14) penetrating the movable block (4) by means of threaded engagement; a second cavity, the second cavity being opened on one side of the moving groove, a third bevel gear (15) being rotatably arranged on the side wall of the second cavity, the third bevel gear (15) being fixedly connected to the second threaded rod (14); a fourth bevel gear (16), the fourth bevel gear (16) being rotatably disposed on the inner top wall of the second cavity, the fourth bevel gear (16) being meshed with the third bevel gear (15), the fourth bevel gear (16) being provided with a first drive opening, and the side wall of the second cavity being provided with a second drive opening; A drive assembly, the drive assembly being arranged on the support frame (1) and being used for controlling the two fourth bevel gears (16) to rotate synchronously.

6. A maintenance platform for an excavator turntable according to claim 5, characterized in that: The drive assembly comprises: A drive cover (17), the drive cover (17) being fixedly arranged on the two support frames (1), a second belt pulley (18) being fixedly arranged between the drive cover (17) and the drive housing (9), and a second belt being arranged for transmission between the second belt pulleys (18); a second motor (19), the second motor (19) being fixedly disposed on the driving cover (17), the output end of the second motor (19) being fixedly connected to the adjacent second pulley (18); A positioning block, the positioning block being fixedly arranged on the support frame (1); a driving prism (20), the driving prism (20) being rotatably disposed between the positioning block and the side wall of the support frame (1), the driving prism (20) penetrating the first driving opening and the second driving opening, the driving prism (20) being slidably connected to the side wall of the first driving opening; A positioning rod, the positioning rod being fixedly arranged between the driving prism (20) and the adjacent second pulley (18).

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