Mechanical arm for detection

Abstract

The utility model relates to the technical field of detection equipment, and discloses a mechanical arm for detection, which is mounted on a four-wheel mobile platform and comprises a detection mechanical arm body and a base fixedly mounted at the bottom of the detection mechanical arm body. The connecting assembly comprises a fastening bolt for achieving stable connection between the base and the four-wheel moving platform, an auxiliary nut fixedly installed on the side wall of an inner cavity of the base, a connecting rod connected with the fastening bolt in a sliding mode, a belt pulley set arranged at the position of the inner cavity of the base, and a transmission shaft rotationally arranged in the base. According to the mechanical arm for detection, the connecting assembly is arranged on the base of the detection mechanical arm body, so that the states of the multiple fastening bolts are adjusted at the same time through components contained in the connecting assembly, the operation step of installing the detection mechanical arm body on the movable platform is simplified, and the overall use efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of detection equipment, in particular to a robotic arm for detection. Background Technique

[0002] In the detection of rock wall cracks, a robotic arm for detection is installed on a four-wheel mobile platform to facilitate crack detection.

[0003] The traditional robotic arm needs to be installed on the mobile platform by using multiple bolts to ensure the stability of the robotic arm. However, the installation steps require adjusting the states of multiple bolts one by one, and its operation steps are relatively complex, affecting the actual use efficiency. For this reason, we propose a robotic arm for detection to solve the above problems. Summary of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the utility model provides a robotic arm for detection, which solves the problems mentioned in the above background.

[0005] The utility model provides the following technical solution: A robotic arm for detection, installed on a four-wheel mobile platform, includes: a detection robotic arm body and a base fixedly installed at the bottom of the detection robotic arm body. A connection component and an adjustment component are further arranged on the base. The connection component includes a fastening bolt for firmly connecting the base and the four-wheel mobile platform, an auxiliary nut fixedly installed on the inner cavity side wall of the base, a connecting rod slidably connected with the fastening bolt, a pulley group arranged in the inner cavity of the base, a transmission shaft rotatably arranged inside the base, and a limiting block fixedly installed at the end of the connecting rod. The adjustment component includes a cylindrical block fixedly connected with the transmission shaft, a movable plate slidably arranged on the cylindrical block, a threaded rod rotatably arranged on the cylindrical block, an annular gear, a connecting bearing for realizing the rotational connection between the annular gear and the cylindrical block, a transmission gear and a main bevel gear rotatably arranged inside the cylindrical block, a bevel gear group for realizing the transmission connection between the transmission gear and the threaded rod, and a sub-bevel gear fixedly installed on the end face of the threaded rod far away from the bevel gear group.

[0006] Preferably, the fastening bolt is located in the inner cavity of the base, and the fastening bolt is also threadedly connected with the auxiliary nut.

[0007] Preferably, the limiting block is located in the inner cavity of the fastening bolt, and a groove for realizing the sliding connection between the connecting rod and the fastening bolt is opened on the connecting rod.

[0008] Preferably, there are four transmission shafts in total, and the four transmission shafts are connected by a pulley group.

[0009] Preferably, the connecting bearing may include an inner ring layer, an outer ring layer and a ball layer. The inner ring layer is fixedly connected to the cylindrical block, and the outer ring layer is fixedly connected to the annular gear. The inner ring layer and the outer ring layer are movably connected through the ball layer.

[0010] Preferably, the bevel gear set includes two bevel gears of the same size and meshing with each other. One of the bevel gears is fixedly connected to the transmission gear, and the other bevel gear is fixedly connected to the threaded rod.

[0011] Preferably, the annular gear is meshed with the transmission gear, and the threaded rod is also threadedly connected to the movable plate.

[0012] Preferably, there are six auxiliary bevel gears in total, and the six auxiliary bevel gears are all meshed and driven with the main bevel gear.

[0013] Compared with the prior art, the present utility model has the following beneficial effects:

[0014] 1. For the detection robotic arm, by arranging the connection component on the base of the detection robotic arm body, the components contained in the connection component are used to simultaneously adjust the states of multiple fastening bolts, thereby simplifying the operation steps of installing the detection robotic arm body on the mobile platform, so as to improve the overall use efficiency.

[0015] 2. For the detection robotic arm, by arranging the adjustment component on the detection robotic arm body, the user can adjust the states of the fastening bolts in the connection component through a hexagon wrench, making the overall structural design more suitable for the actual application scenario. The cylindrical block in the adjustment component can use multiple movable plates to adjust the size of the hexagonal socket on the cylindrical block, so as to be applicable to the application of hexagon wrenches of different sizes, thereby expanding the applicable range of the overall structure and further improving the overall performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0017] Figure 2 is a first sectional view of the base structure of the present utility model;

[0018] Figure 3 is a schematic diagram of the pulley set structure of the present utility model;

[0019] Figure 4 is a second sectional view of the base structure of the present utility model;

[0020] Figure 5 is Figure 4 an enlarged schematic view of the structure at A in

[0021] Figure 6 is Figure 4A magnified schematic diagram of the structure at B in the middle;

[0022] Figure 7 It is a schematic cross-sectional view of the columnar block structure of the utility model.

[0023] In the figure: 1. detection robot arm body; 2. base; 3. connecting assembly; 31. fastening bolt; 32. auxiliary nut; 33. connecting rod; 34. pulley assembly; 35. transmission shaft; 36. limit block; 4. adjustment assembly; 41. cylindrical block; 42. movable plate; 43. threaded rod; 44. ring gear; 45. connecting bearing; 46. transmission gear; 47. bevel gear assembly; 48. secondary bevel gear; 49. main bevel gear. DETAILED DESCRIPTION

[0024] 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.

[0025] See also Figure 1-7 A detection robot arm is installed on a four-wheel mobile platform, comprising: a detection robot arm body 1 and a base 2 fixedly installed at the bottom of the detection robot arm body 1, a connecting component 3 and an adjusting component 4 are also arranged on the base 2, and the connecting component 3 includes a fastening bolt 31 for realizing a stable connection between the base 2 and the four-wheel mobile platform, an auxiliary nut 32 fixedly installed on the side wall of the inner cavity of the base 2, a connecting rod 33 slidably connected to the fastening bolt 31, a pulley group 34 arranged at the inner cavity of the base 2, a transmission shaft 35 rotatably arranged inside the base 2, and a limiting nut fixedly installed at the end of the connecting rod 33. The limit block 36 is located in the internal cavity of the base 2, and the fastening bolt 31 is also threadedly connected to the auxiliary nut 32. The limit block 36 is located in the internal cavity of the fastening bolt 31. The design of the limit block 36 can avoid the fastening bolt 31 from being detached, thereby ensuring the stability of the overall structure. The connecting rod 33 is provided with a groove for realizing a sliding connection relationship between the connecting rod 33 and the fastening bolt 31. There are four transmission shafts 35, and the four transmission shafts 35 are connected through a pulley set 34 to improve the flexibility of the overall structure and further ensure the use efficiency of the overall structure.

[0026] The adjusting component 4 includes a cylindrical block 41 fixedly connected to the transmission shaft 35, a movable plate 42 slidably arranged on the cylindrical block 41, a threaded rod 43 rotatably arranged on the cylindrical block 41, an annular gear 44, a connecting bearing 45 for realizing the rotational connection between the annular gear 44 and the cylindrical block 41, a transmission gear 46 and a main bevel gear 49 rotatably arranged inside the cylindrical block 41, a bevel gear set 47 for realizing the transmission connection between the transmission gear 46 and the threaded rod 43, and a secondary bevel gear 48 fixedly installed on the end face of the threaded rod 43 away from the bevel gear set 47. The connecting bearing 45 may include an inner layer, an outer layer and a ball layer, and the inner layer is fixedly connected to the cylindrical block 41, while the outer layer is fixedly connected to the annular gear 44, and the inner layer and the outer layer are movably connected through the ball layer. The bevel gear set 47 includes two bevel gears of the same size and meshing with each other, one of the bevel gears is fixedly connected to the transmission gear 46, and the other bevel gear is fixedly connected to the threaded rod 43. The annular gear 44 is meshed and connected to the transmission gear 46. The threaded rod 43 is also threadedly connected to the movable plate 42. There are six secondary bevel gears 48 in total, and the six secondary bevel gears 48 are all meshed and driven with the main bevel gear 49 to be applicable to the hexagonal jack on the cylindrical block 41 and correspond to the six side walls of the hexagonal jack one by one.

[0027] Working principle: After fixing the base 2 at the bottom of the detection robotic arm body 1 on the mobile platform by using the fastening bolt 31, the crack on the rock wall can be detected by the probe at the end of the detection robotic arm body 1. Insert the hexagon wrench into the hexagonal jack of the cylindrical block 41, and then drive the cylindrical block 41 to rotate. The transmission shaft 35 fixedly connected to the cylindrical block 41 rotates synchronously inside the base 2. The connecting rod 33 fixed on the transmission shaft 35 is also slidably connected to the fastening bolt 31, and the fastening bolt 31 is threadedly connected to the auxiliary nut 32 fixed inside the base 2. Therefore, after the transmission shaft 35 rotates, the connecting rod 33 drives the fastening bolt 31 to rotate synchronously. Under the action of the auxiliary nut 32, the fastening bolt 31 will screw out from the inside of the base 2 and then can be screwed into the inside of the mobile platform. The base 2 is connected to the mobile platform by using the thread on the surface of the fastening bolt 31. Multiple transmission shafts 35 are connected by a pulley group 34. Therefore, after the cylindrical block 41 drives a single transmission shaft 35 to rotate, multiple transmission shafts 35 will rotate synchronously, and then drive multiple fastening bolts 31 to screw out from the inside of the base 2 at the same time to be screwed into the inside of the mobile platform, so as to stably fix the detection robotic arm body 1 on the mobile platform.

[0028] After rotating the annular gear 44 which is rotatably connected to the cylindrical block 41 by the connecting bearing 45, the annular gear 44 meshes with the transmission gear 46 rotatably provided inside the cylindrical block 41. The transmission between the transmission gear 46 and the threaded rod 43 is realized by the bevel gear set 47. Then, after the annular gear 44 rotates, under the transmission of structures such as the transmission gear 46 and the bevel gear set 47, the threaded rod 43 rotates synchronously. The threaded rod 43 is threadedly connected to the movable plate 42 slidably provided on the cylindrical block 41, so as to drive the movable plate 42 to slide inside the cylindrical block 41. A sub-bevel gear 48 meshing with the main bevel gear 49 is fixed on the end of the threaded rod 43, and six threaded rods 43 and sub-bevel gears 48 are provided, corresponding to the hexagonal sockets on the cylindrical block 41 one by one. Under the transmission of structures such as the main bevel gear 49 and the sub-bevel gear 48, after a single threaded rod 43 rotates, the remaining threaded rods 43 rotate synchronously to drive the movable plates 42 inside the cylindrical block 41 to slide synchronously, so as to change the size of the hexagonal sockets on the cylindrical block 41 to be suitable for the use of hexagonal wrenches of different models.

[0029] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A robotic arm for detection, which is installed on a four-wheel mobile platform, and is characterized in that, Including: A detection robotic arm body (1) and a base (2) fixedly installed at the bottom of the detection robotic arm body (1). A connection component (3) and an adjustment component (4) are further arranged on the base (2). The connection component (3) includes a fastening bolt (31) for firmly connecting the base (2) and the four-wheel mobile platform, an auxiliary nut (32) fixedly installed on the inner cavity side wall of the base (2), a connecting rod (33) slidably connected to the fastening bolt (31), a pulley group (34) arranged in the inner cavity of the base (2), a transmission shaft (35) rotatably arranged inside the base (2), and a limit block (36) fixedly installed at the end of the connecting rod (33). The adjustment component (4) includes a cylindrical block (41) fixedly connected to the transmission shaft (35), a movable plate (42) slidably arranged on the cylindrical block (41), a threaded rod (43) rotatably arranged on the cylindrical block (41), an annular gear (44), a connection bearing (45) for rotatably connecting the annular gear (44) and the cylindrical block (41), a transmission gear (46) and a main bevel gear (49) rotatably arranged inside the cylindrical block (41), a bevel gear group (47) for transmitting connection between the transmission gear (46) and the threaded rod (43), and a sub-bevel gear (48) fixedly installed on the end face of the threaded rod (43) away from the bevel gear group (47).

2. The robotic arm for detection according to claim 1, wherein The fastening bolt (31) is located in the inner cavity of the base (2), and the fastening bolt (31) is also threadedly connected to the auxiliary nut (32).

3. The robotic arm for detection according to claim 1, characterized in that, The limit block (36) is located in the inner cavity of the fastening bolt (31), and a groove for realizing the sliding connection relationship between the connecting rod (33) and the fastening bolt (31) is provided on the connecting rod (33).

4. A robotic arm for detection according to claim 1, characterized in that, There are four transmission shafts (35) in total, and the four transmission shafts (35) are connected by a pulley group (34).

5. A robotic arm for detection according to claim 1, characterized in that, The connection bearing (45) may include an inner ring, an outer ring and a ball layer. The inner ring is fixedly connected to the cylindrical block (41), the outer ring is fixedly connected to the annular gear (44), and the inner ring and the outer ring are movably connected through the ball layer.

6. The robotic arm for detection according to claim 1, characterized in that, The bevel gear group (47) includes two bevel gears of the same size and meshing with each other. One bevel gear is fixedly connected to the transmission gear (46), and the other bevel gear is fixedly connected to the threaded rod (43).

7. The robotic arm for detection according to claim 1, characterized in that, The annular gear (44) is meshed and connected to the transmission gear (46), and the threaded rod (43) is also threadedly connected to the movable plate (42).

8. A robotic arm for detection according to claim 1, characterized in that, There are six sub-bevel gears (48) in total, and the six sub-bevel gears (48) are all meshed and transmitted with the main bevel gear (49).

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