A lifting, translating and rotating test platform mechanism

Abstract

The utility model discloses a kind of test platform mechanisms of lifting and translating rotation, it is related to gear box test bench technical field, to solve the problem that current gear box test bench cannot fine-tune rotation movement, the test platform mechanism includes pedestal, lifting mechanism is set in pedestal, first translation mechanism is set in the top of lifting mechanism and moves along first direction, second translation mechanism is set in the top of first translation mechanism, second translation mechanism moves along the second direction perpendicular to first direction in plane, rotating mechanism is rotatably set in the top of second translation mechanism, rotating mechanism includes rotating platform, thrust bearing and bearing support plate, thrust bearing is rotatably set in the top of second translation mechanism by bearing base, bearing support plate is set in the bottom of rotating platform, thrust bearing is in contact with bearing support plate, so set, by the mode of manual adjustment, the fine-tuning of rotating platform angle can be realized.

Description

Technical Field

[0001] This utility model relates to the field of gearbox test bench technology, and more specifically, to a test platform mechanism that can be raised, lowered, translated and rotated. Background Technology

[0002] A gearbox test bench is a testing system used to inspect the manufacturing quality of gearboxes. It can comprehensively analyze and inspect the performance indicators of gearboxes, thereby judging the rationality of the gearbox design and whether the technology meets the standards.

[0003] Aligning the gearbox and test motor using a gearbox test bench involves precisely aligning the two components to ensure smooth operation during testing and prevent issues such as vibration and wear caused by misalignment. The accuracy of this alignment directly impacts the reliability of the test results and the service life of the gearbox.

[0004] Most existing gearbox test benches can only perform lifting and lowering movements, not rotational movements. Patent CN222410877U discloses a lifting platform with rotational and lateral movement functions. This platform is driven by a motor and uses gear meshing to make the platform rotate. Although it can perform lifting, lateral movement and rotation functions, the entire movement process is electric, making it difficult to achieve fine adjustment of the rotational movement.

[0005] Therefore, how to solve the problem that existing gearbox test benches cannot fine-tune rotational motion is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0006] In view of this, the purpose of this utility model is to provide a test platform mechanism that can be raised, lowered, translated, and rotated, which makes it easier to fine-tune the angle of the rotating platform manually.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A test platform mechanism that can be raised, lowered, translated, and rotated includes:

[0009] Base;

[0010] A lifting mechanism, which can be raised and lowered, is located on the base;

[0011] The first translation mechanism is located on top of the lifting mechanism, and the first translation mechanism moves in the first direction;

[0012] The second translation mechanism is located on top of the first translation mechanism, and the second translation mechanism moves along a second direction perpendicular to the first direction in the plane;

[0013] A rotating mechanism is rotatably located on top of the second translation mechanism. The rotating mechanism includes a rotating platform, a thrust bearing, and a bearing support plate. The thrust bearing is rotatably located on top of the second translation mechanism via a bearing base. The bearing support plate is located at the bottom of the rotating platform, and the thrust bearing is in contact with the bearing support plate.

[0014] Preferably, the rotating platform and the second translation mechanism are locked together by a locking assembly.

[0015] Preferably, the locking assembly includes a connecting bolt and a locking nut, and the rotating platform and the second translation mechanism are provided with adjusting elongated holes on their diagonals. The connecting bolt is movably located in the adjusting elongated hole, and the adjusting elongated hole is an arc-shaped hole.

[0016] Preferably, the lifting mechanism includes a lifting platform and a chain drive mechanism and a bevel gear drive mechanism mounted on a base for driving the lifting platform to move up and down.

[0017] Preferably, the chain drive mechanism includes a driving sprocket, a driven sprocket, and a drive chain wrapped around the outer periphery of the driving sprocket and the driven sprocket. The driving sprocket is located on the drive shaft, and the driven sprocket is located on the driven shaft. Both the drive shaft and the driven shaft are rotatably located on the base through bearing seats. One end of the drive shaft is provided with a hand crank.

[0018] Preferably, the bevel gear transmission mechanism has two sets, which are located at both ends of the driven shaft. The bevel gear transmission mechanism includes a driving bevel gear and a driven bevel gear. The driving bevel gear is located on the driven shaft, and the driven bevel gear is located on the moving screw. One end of the moving screw is rotatably connected to the base, and the other end of the moving screw is threadedly connected to the lifting platform. The lifting platform is provided with a long threaded hole that is threadedly connected to the moving screw.

[0019] Preferably, the lifting platform has an inverted U-shaped structure, with guide holes on both sides of the lifting platform and guide rods on the base, which slide along the guide holes.

[0020] Preferably, locking bolts are provided on both sides of the base. The locking bolts are used to lock the side plates of the lifting platform. Through holes are provided at the four corners of the side plates of the lifting platform. An auxiliary screw is provided in the through holes. One end of the auxiliary screw is connected to the base. A double nut locking structure is provided on the auxiliary screw to lock the position of the lifting platform on the auxiliary screw.

[0021] Preferably, the first translation mechanism includes a first hand rocker ball screw, a first support seat arranged in parallel, and a first moving platform. The first support seat is located on the lifting platform, and the first hand rocker ball screw is located on the first support seat along a first direction. The first hand rocker ball screw is connected to the first support seat and the first moving platform through a bearing assembly. The second translation mechanism includes a second hand rocker ball screw and a second moving platform arranged in parallel with the first moving platform. The second hand rocker ball screw is located on the first moving platform along a second direction and is connected to the first moving platform and the second moving platform through a bearing assembly.

[0022] Preferably, the first support base is provided with a guide rail assembly extending in a first direction, and the first moving platform is provided with a guide rail assembly extending in a second direction.

[0023] The lifting, translating, and rotating test platform mechanism provided by this utility model includes a base, a lifting mechanism, a first translation mechanism, a second translation mechanism, and a rotating mechanism. Specifically, the lifting mechanism is vertically mounted on the base, the first translation mechanism is mounted on top of the lifting mechanism, the second translation mechanism is mounted on top of the first translation mechanism, and the rotating mechanism is rotatably mounted on top of the second translation mechanism. The rotating mechanism, the second translation mechanism, the first translation mechanism, and the lifting mechanism are arranged sequentially from top to bottom on the base. The lifting mechanism can drive the rotating mechanism, the first translation mechanism, and the second translation mechanism to move up and down synchronously. The first translation mechanism moves along a first direction, and the second translation mechanism moves along a second direction perpendicular to the first direction in the plane. The first translation mechanism drives the second translation mechanism and the rotating mechanism to move synchronously along the first direction, and the second translation mechanism drives the rotating mechanism to move along the second direction.

[0024] The rotating mechanism includes a rotating platform, a thrust bearing, a bearing base, and a bearing support plate. The thrust bearing is rotatably mounted on the top of the second translation mechanism via the bearing base. The bearing support plate is located at the bottom of the rotating platform, and the thrust bearing contacts the bearing support plate. When adjusting the angle of the rotating platform, the rotating platform is manually rotated, and the rotational motion is achieved with the help of the thrust bearing to achieve the purpose of saving effort, thereby realizing the fine adjustment of the rotating platform. The angle of the rotating platform can be finely adjusted by manual adjustment. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the structure of the lifting, translating, and rotating test platform mechanism provided by this utility model;

[0027] Figure 2 This is a front view of the rotating mechanism provided by this utility model;

[0028] Figure 3 This is a top view of the rotating mechanism provided by this utility model;

[0029] Figure 4 This is a structural schematic diagram of the lifting mechanism provided by this utility model;

[0030] Figure 5 This is a partial schematic diagram of the lifting mechanism provided by this utility model;

[0031] Figure 6 This is a schematic diagram of the structure of the first translation mechanism provided by this utility model;

[0032] Figure 7 This is a schematic diagram of the structure of the second translation mechanism provided by this utility model.

[0033] Figure label:

[0034] 1-Base;

[0035] 2-Lifting mechanism, 21-Lifting platform, 22-Chain drive mechanism, 221-Driving sprocket, 222-Driven sprocket, 223-Drive chain, 224-Drive shaft, 225-Driven shaft, 226-Hand crank, 23-Bevel gear drive mechanism, 231-Driving bevel gear, 232-Driven bevel gear, 233-Screw screw;

[0036] 3-First translation mechanism, 31-First hand-operated ball screw, 32-First support seat, 33-First moving platform;

[0037] 4-Second translation mechanism, 41-Second hand-operated rocker ball screw, 42-Second moving platform;

[0038] 5-Rotating mechanism, 51-Rotating platform, 52-Thrust bearing, 53-Bearing support plate;

[0039] 6-Locking assembly;

[0040] 7-Guide rod;

[0041] 8- Locking bolt;

[0042] 9-Auxiliary lead screw;

[0043] 10-Guide rail assembly. Detailed Implementation

[0044] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0045] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0046] It should be noted that the directional terms such as "up," "down," "front," "back," "left," and "right" used below are defined based on the accompanying diagrams in the instruction manual.

[0047] The core of this utility model is to provide a test platform mechanism that can be raised, lowered, translated, and rotated, which makes it easier to fine-tune the angle of the rotating platform 51 manually.

[0048] Please refer to Figure 1 , Figure 2 and Figure 3 A test platform mechanism that can be raised, lowered, translated, and rotated includes a base 1, a lifting mechanism 2, a first translation mechanism 3, a second translation mechanism 4, and a rotation mechanism 5.

[0049] Specifically, the lifting mechanism 2 is mounted on the base 1 in a lifting manner, the first translation mechanism 3 is mounted on top of the lifting mechanism 2, the second translation mechanism 4 is mounted on top of the first translation mechanism 3, and the rotating mechanism 5 is mounted on top of the second translation mechanism 4 in a rotatable manner. The rotating mechanism 5, the second translation mechanism 4, the first translation mechanism 3 and the lifting mechanism 2 are arranged sequentially from top to bottom on the base 1. The lifting mechanism 2 can drive the rotating mechanism 5, the first translation mechanism 3 and the second translation mechanism 4 to move up and down synchronously. The first translation mechanism 3 moves along a first direction, and the second translation mechanism 4 moves along a second direction in the plane that is perpendicular to the first direction. The first translation mechanism 3 drives the second translation mechanism 4 and the rotating mechanism 5 to move synchronously along the first direction, and the second translation mechanism 4 drives the rotating mechanism 5 to move along the second direction.

[0050] The rotating mechanism 5 includes a rotating platform 51, a thrust bearing 52, a bearing base, and a bearing support plate 53. The thrust bearing 52 is rotatably mounted on the top of the second translation mechanism 4 via the bearing base. The bearing support plate 53 is located at the bottom of the rotating platform 51. The thrust bearing 52 contacts the bearing support plate 53. When adjusting the angle of the rotating platform 51, the rotating platform 51 is manually rotated, and the rotational movement is achieved with the help of the thrust bearing 52, so as to save effort and achieve fine adjustment of the rotating platform 51. Fine adjustment of the angle of the rotating platform 51 can be achieved through manual adjustment.

[0051] The test platform mechanism with lifting, translation and rotation configured in the above manner has a rotating platform 51 that can move up and down, move horizontally along the first and second directions, and rotate. It also satisfies four degrees of freedom motion adjustment. Through manual adjustment, the angle of the rotating platform 51 can be finely adjusted.

[0052] In the above embodiment, the rotating platform 51 and the second translation mechanism 4 are locked together by the locking assembly 6.

[0053] It should be noted that the rotating platform 51 and the second translation mechanism 4 are rotatably connected by a thrust bearing 52. In order to stabilize the angle of the adjusted rotating platform 51, a locking component 6 is added to lock the position of the rotating platform 51 and the second translation mechanism 4 after the angle is adjusted.

[0054] In the above case, the locking assembly 6 includes a connecting bolt and a locking nut. The rotating platform 51 and the second translation mechanism 4 are provided with adjustment elongated holes on their diagonals. The connecting bolt is movably located in the adjustment elongated hole, which is an arc-shaped hole.

[0055] It is understood that the second translation mechanism 4 is connected to the top rotating platform 51 by a bolt group. Connecting holes are provided on the diagonal lines of the rotating platform 51 and the second translation mechanism 4. These connecting holes are adjustable elongated holes, and are designed in an arc shape to ensure proper locking during angle adjustment. In this embodiment, the arc-shaped holes are located at the four corners of the rotating platform 51 and the second translation mechanism 4.

[0056] Please refer to Figure 4 and Figure 5 The lifting mechanism 2 includes a lifting platform 21 and a chain drive mechanism 22 and a bevel gear drive mechanism 23 located on the base 1 for driving the lifting platform 21 to be raised and lowered.

[0057] It should be noted that the power input to the lifting platform 21 for lifting and lowering is input through the chain drive mechanism 22, and the power input by the chain drive mechanism 22 is transmitted to the lifting platform 21 through the bevel gear drive mechanism 23, so as to drive the lifting platform 21 for lifting and lowering.

[0058] In the above embodiment, the chain drive mechanism 22 includes a drive sprocket 221, a driven sprocket 222, and a drive chain 223 wrapped around the outer periphery of the drive sprocket 221 and the driven sprocket 222. The drive sprocket 221 is located on the drive shaft 224, and the driven sprocket 222 is located on the driven shaft 225. Both the drive shaft 224 and the driven shaft 225 are rotatably located on the base 1 through bearing seats. One end of the drive shaft 224 is provided with a hand crank 226.

[0059] Understandably, by manually rotating the hand crank 226, the drive shaft 224 is driven to rotate synchronously, which in turn drives the drive sprocket 221 on the drive shaft 224 to rotate synchronously. This, in turn, drives the driven sprocket 222 and the driven shaft 225 to rotate synchronously via the drive chain 223, thus transmitting the input power to the bevel gear transmission mechanism 23. Utilizing the labor-saving characteristics of the drive chain 223, the entire structure can be moved manually.

[0060] Both the drive shaft 224 and the driven shaft 225 are rotatably mounted on the base 1 via bearings and bearing seats.

[0061] Based on the above embodiment, the bevel gear transmission mechanism 23 is provided in two sets. The two sets of bevel gear transmission mechanisms 23 are located at both ends of the driven shaft 225. The bevel gear transmission mechanism 23 includes a driving bevel gear 231 and a driven bevel gear 232. The driving bevel gear 231 is located on the driven shaft 225, and the driven bevel gear 232 is located on the moving screw 233. One end of the moving screw 233 is rotatably connected to the base 1, and the other end of the moving screw 233 is threadedly connected to the lifting platform 21. The lifting platform 21 is provided with a long threaded hole that is threadedly connected to the moving screw 233.

[0062] It should be noted that the driven shaft 225 rotates, driving the driving bevel gear 231 to rotate. Through the meshing transmission between the driving bevel gear 231 and the driven bevel gear 232, the moving screw 233 rotates synchronously. Through the thread transmission between the moving screw 233 and the long threaded hole of the lifting platform 21, the lifting platform 21 is driven to perform lifting and lowering movements.

[0063] In one embodiment, rotating the hand crank 226 forward causes the drive shaft 224 and the drive sprocket 221 on the drive shaft 224 to rotate synchronously in the forward direction. This, in turn, drives the driven sprocket 222 and the driven shaft 225 to rotate synchronously in the forward direction via the drive chain 223. This, in turn, drives the drive bevel gear 231 to rotate synchronously in the forward direction. Finally, through the meshing transmission between the drive bevel gear 231 and the driven bevel gear 232, the moving screw 233 is driven to rotate, thereby driving the lifting platform 21 to rise. Reversely, rotating the hand crank 226 in the reverse direction causes the drive shaft 224 and the drive sprocket 221 on the drive shaft 224 to rotate synchronously in the reverse direction. This, in turn, drives the driven sprocket 222 and the driven shaft 225 to rotate synchronously in the reverse direction via the drive chain 223. This, in turn, drives the drive bevel gear 231 to rotate synchronously in the reverse direction. Finally, through the meshing transmission between the drive bevel gear 231 and the driven bevel gear 232, the moving screw 233 is driven to rotate, thereby driving the lifting platform 21 to descend.

[0064] There are no restrictions on whether the hand crank 226 can drive the lifting platform 21 to move up or down, as long as the above-mentioned technical effect can be achieved.

[0065] In the above embodiment, the lifting platform 21 has an inverted U-shaped structure. The two side plates of the lifting platform 21 are provided with guide elongated holes, and the base 1 is provided with guide rods 7, which are slidably arranged along the guide elongated holes.

[0066] Understandably, in order to ensure the stability of the lifting platform 21 during the lifting process, a guide hole is provided on the lifting platform 21, and a guide rod 7 is provided on the base 1 that slides along the guide hole. Through the cooperation between the guide rod 7 and the guide hole, the lifting platform 21 is guided to ensure its stability during the lifting process.

[0067] In a preferred embodiment, locking bolts 8 are provided on both sides of the base 1. The locking bolts 8 are used to lock the side plates of the lifting platform 21. Through holes are provided at the four corners of the side plates of the lifting platform 21. An auxiliary screw 9 is provided in the through holes. One end of the auxiliary screw 9 is connected to the base 1. A double nut locking structure is provided on the auxiliary screw 9 for locking the position of the lifting platform 21 on the auxiliary screw 9.

[0068] It should be noted that auxiliary lead screws 9 are installed at the four corners of the side plate of the lifting platform 21 to provide support. The auxiliary lead screws 9 are fixed to the base. In order to keep the lifting platform 21 stable after lifting, a locking device is installed between the lifting platform and the base 1. A double nut locking structure is installed between the auxiliary lead screws 9 and the lifting platform 21. The locking device is a locking bolt 8, which is threaded to the side plate of the base 1. The end of the locking bolt 8 abuts against the side of the lifting platform 21 to achieve locking. The locking bolt 8 can reach the range of motion of the lifting platform to achieve correct locking. In order to ensure that the lifting platform 21 is firmly locked, the double nut locking structure is installed on each auxiliary lead screw 9 and tightened on the upper and lower end faces of the side plate. When it is necessary to move the lifting platform 21 up or down, the double nut locking structure on each auxiliary lead screw 9 is tightened away from the lifting platform 21 to provide sufficient space for the lifting platform 21 to move up and down.

[0069] The auxiliary lead screw 9 has an external thread on its outer periphery that mates with the locking nut. Therefore, the side plate of the lifting platform 21 has a mounting hole for installing the auxiliary lead screw 9. To allow the auxiliary lead screw 9 to slide within the mounting hole, the inner wall of the mounting hole and the auxiliary lead screw 9 are fitted with a clearance fit.

[0070] Please refer to Figure 1 , Figure 6 and Figure 7 The first translation mechanism 3 includes a first hand rocker ball screw 31, a first support seat 32 arranged in parallel, and a first moving platform 33. The first support seat 32 is located on the lifting platform 21. The first hand rocker ball screw 31 is located on the first support seat 32 along a first direction. The first hand rocker ball screw 31 is connected to the first support seat 32 and the first moving platform 33 through a bearing assembly. The second translation mechanism 4 includes a second hand rocker ball screw 41 and a second moving platform 42 arranged in parallel with the first moving platform 33. The second hand rocker ball screw 41 is located on the first moving platform 33 along a second direction and is connected to the first moving platform 33 and the second moving platform 42 through a bearing assembly.

[0071] It is understandable that the first moving platform 33 is driven to move in the first direction by the first rocker ball screw 31, and the second moving platform 42 is driven to move in the second direction by the second rocker ball screw 41.

[0072] The first hand-cranked ball screw 31 and the second hand-cranked ball screw 41 both include ball screws for moving the corresponding first moving platform 33 and second moving platform 42 and hand cranks for driving the ball screws to rotate.

[0073] Four pairs of wedge blocks are provided between the second moving platform 42 and the top rotating platform 51. The purpose of setting the wedge blocks is to support the entire rotating platform 51 and related test bench accessories placed on the rotating platform 51 after the angle of the rotating platform 51 is adjusted.

[0074] Among them, gear transmission and ball screw transmission both have the characteristics of high transmission accuracy and reversible motion transmission, which can meet the requirements of the entire motion of the test platform mechanism.

[0075] In the above embodiments, the first support base 32 is provided with a guide rail assembly 10 extending along a first direction, and the first moving platform 33 is provided with a guide rail assembly 10 extending along a second direction.

[0076] It should be noted that the guide rail assembly 10 has a dovetail groove structure, which features high motion accuracy and stability.

[0077] This application comprises a lifting mechanism 2, a first translation mechanism 3, a second translation mechanism 4, and a rotating mechanism 5. All movements are achieved manually. A hand crank is installed at each initial movement position, and lifting, forward / backward, left / right, and rotating movements are achieved through the close connection of various kinematic pairs. The specific movement process is as follows:

[0078] When the test platform mechanism needs to be raised or lowered, the entire lifting mechanism 2 will operate. When the hand crank rotates the transmission shaft 224, it will drive the chain drive mechanism 22 to rotate at the same speed. The rotational motion and power of the chain drive mechanism 22 will be transmitted to the driven shaft 225, which will then output power to the vertically moving lead screw 233, thereby achieving the raising or lowering motion of the lifting platform 21. An auxiliary lead screw 9 and a guide rod 7 are installed on the lifting platform 21 to ensure smooth operation of the lifting motion. To ensure a stable stop at a fixed position after the motion is completed, a double-nut locking structure and locking bolts 8 are installed at the auxiliary lead screw 9 and the lifting platform 21.

[0079] When the test platform mechanism is to move back and forth, the first ball screw 31 is used to provide the main force for the back and forth movement. When the ball screw rotates, the entire first moving platform 33 will move along the first direction. In order to ensure the smoothness of the movement, a dovetail groove structure is set in the first moving platform 33.

[0080] When the test platform mechanism is to move left and right, it moves in the same direction as the front and back moving platform. The second ball screw 41 for left and right movement provides the main force. When the ball screw rotates, the entire second moving platform 42 will move in the second direction. In order to ensure the smoothness of the movement, a dovetail groove structure is also set in the second moving platform 42.

[0081] When the test platform mechanism needs to rotate, a thrust bearing 52 is used to achieve the rotational movement. The thrust bearing 52 can achieve the purpose of saving effort. The rotational movement is achieved by manually rotating the rotating platform 51. When the rotating platform 51 rotates to the designated position, a wedge block is used to support the rotating platform 51 to share the pressure on the thrust bearing 52 (the wedge block is installed after the rotating platform 51 has rotated to the position). Finally, the locking assembly 6 is used to lock the second moving platform 42 and the rotating platform 51. Before adjusting the rotating platform 51, the locking assembly 6 is loosened. After the rotating platform 51 has rotated to the position, the locking assembly 6 is tightened to achieve locking and positioning.

[0082] In summary, the lifting, translating, and rotating test platform mechanism provided by this utility model is entirely manual. The motion mechanism is a combination of chain drive, ball screw drive, gear drive, and thrust bearing 52, all of which are labor-saving components. This makes the entire test platform mechanism highly adjustable and easy to maneuver. Furthermore, the various motion modes of the entire test platform mechanism are independent of each other and do not interfere with each other, making the movement of the entire platform more stable and the position more accurate. Because the range of motion of the entire mechanism is relatively small, the entire mechanism is set to move manually, and manual mode makes it easier to make fine adjustments.

[0083] The designed lifting, translating, and rotating test platform mechanism is suitable for applications involving the alignment of the gearbox and motor. Specifically, it can achieve lifting, translating, and rotating movements. The alignment between the gearbox and motor is adjusted manually, eliminating the need for traditional methods such as tapping and using shims. Furthermore, the test platform is fixed to base 1, avoiding long-term occupation of the overhead crane.

[0084] It should be noted that in this specification, relational terms such as first and second are used only to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities.

[0085] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0086] The above provides a detailed description of the lifting, translating, and rotating test platform mechanism provided by this utility model. Specific examples have been used to illustrate the principle and implementation of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of this utility model.

Claims

1. A test platform mechanism that can be raised, lowered, translated, and rotated, characterized in that, include: Base (1); Lifting mechanism (2), which is liftable and can be mounted on the base (1); The first translation mechanism (3) is located on top of the lifting mechanism (2), and the first translation mechanism (3) moves along the first direction; The second translation mechanism (4) is located on top of the first translation mechanism (3), and the second translation mechanism (4) moves in a second direction perpendicular to the first direction in the plane; The rotating mechanism (5) is rotatably disposed on the top of the second translation mechanism (4). The rotating mechanism (5) includes a rotating platform (51), a thrust bearing (52) and a bearing support plate (53). The thrust bearing (52) is rotatably disposed on the top of the second translation mechanism (4) via a bearing base. The bearing support plate (53) is disposed at the bottom of the rotating platform (51). The thrust bearing (52) is in contact with the bearing support plate (53).

2. The liftable, translational, and rotatable test platform mechanism according to claim 1, characterized in that, The rotating platform (51) and the second translation mechanism (4) are locked together by a locking assembly (6).

3. The liftable, translational, and rotatable test platform mechanism according to claim 2, characterized in that, The locking assembly (6) includes a connecting bolt and a locking nut. The rotating platform (51) and the second translation mechanism (4) are provided with adjustment elongated holes on their diagonals. The connecting bolt is movably disposed in the adjustment elongated hole, which is an arc-shaped hole.

4. The liftable, translational, and rotatable test platform mechanism according to claim 1, characterized in that, The lifting mechanism (2) includes a lifting platform (21) and a chain drive mechanism (22) and a bevel gear drive mechanism (23) located on the base (1) for driving the lifting platform (21) to be raised and lowered.

5. The liftable, translational, and rotatable test platform mechanism according to claim 4, characterized in that, The chain drive mechanism (22) includes a drive sprocket (221), a driven sprocket (222), and a drive chain (223) wrapped around the outer periphery of the drive sprocket (221) and the driven sprocket (222). The drive sprocket (221) is located on the drive shaft (224), and the driven sprocket (222) is located on the driven shaft (225). The drive shaft (224) and the driven shaft (225) are rotatably located on the base (1) through bearing seats. A hand crank (226) is provided at one end of the drive shaft (224).

6. The liftable, translational, and rotatable test platform mechanism according to claim 5, characterized in that, The bevel gear transmission mechanism (23) is provided in two sets. The two sets of bevel gear transmission mechanisms (23) are located at both ends of the driven shaft (225). The bevel gear transmission mechanism (23) includes a driving bevel gear (231) and a driven bevel gear (232). The driving bevel gear (231) is located on the driven shaft (225), and the driven bevel gear (232) is located on the moving screw (233). One end of the moving screw (233) is rotatably connected to the base (1), and the other end of the moving screw (233) is threadedly connected to the lifting platform (21). The lifting platform (21) is provided with a long threaded hole that is threadedly connected to the moving screw (233).

7. The liftable, translational, and rotatable test platform mechanism according to claim 6, characterized in that, The lifting platform (21) has an inverted U-shaped structure. The two side plates of the lifting platform (21) are provided with guide holes. The base (1) is provided with guide rods (7), which slide along the guide holes.

8. The liftable, translational, and rotatable test platform mechanism according to claim 7, characterized in that, The base (1) is provided with locking bolts (8) on both sides. The locking bolts (8) are used to lock the side plate of the lifting platform (21). The four corners of the side plate of the lifting platform (21) are provided with through holes. The through holes are provided with auxiliary screws (9). One end of the auxiliary screws (9) is connected to the base (1). The auxiliary screws (9) are provided with a double nut locking structure for locking the position of the lifting platform (21) on the auxiliary screws (9).

9. The liftable, translational, and rotatable test platform mechanism according to any one of claims 4-8, characterized in that, The first translation mechanism (3) includes a first hand rocker ball screw (31), a first support seat (32) arranged in parallel, and a first moving platform (33). The first support seat (32) is located on the lifting platform (21). The first hand rocker ball screw (31) is located on the first support seat (32) along the first direction. The first hand rocker ball screw (31) is connected to the first support seat (32) and the first moving platform (33) through a bearing assembly. The second translation mechanism (4) includes a second hand rocker ball screw (41) and a second moving platform (42) arranged in parallel with the first moving platform (33). The second hand rocker ball screw (41) is located on the first moving platform (33) along the second direction and is connected to the first moving platform (33) and the second moving platform (42) through a bearing assembly.

10. The liftable, translational, and rotatable test platform mechanism according to claim 9, characterized in that, The first support base (32) is provided with a guide rail assembly (10) extending along the first direction, and the first moving platform (33) is provided with the guide rail assembly (10) extending along the second direction.

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