Linear motion platform for bearing heavy-load equipment

Abstract

The utility model relates to the field of large mechanical equipment. The utility model relates to a linear motion platform, in particular to a linear motion platform used for bearing heavy-load equipment. The tensioning device is arranged on the mobile platform so as to tension the heavy-load equipment placed on the mobile platform; the moving platform is arranged on the linear guide mechanism in a sliding manner; and the driving mechanism is arranged on the linear guide mechanism and is in transmission connection with the moving platform. The utility model discloses a linear motion platform for bearing heavy-load equipment. The heavy-load equipment is ensured to be fastened and positioned on the linear motion platform by arranging a tensioning device.

Description

Technical Field

[0001] This utility model relates to the field of large-scale mechanical equipment. More specifically, this utility model relates to a linear motion platform for supporting heavy-duty equipment. Background Technology

[0002] Mobile heavy-duty equipment is a crucial support structure for conducting research and experiments. During the experiment, the mobile device needs to move forward or backward a certain distance along the axial direction to connect with other sections according to different experimental requirements. This invention proposes a motion platform for supporting the axial movement of heavy-duty equipment, which is an important auxiliary facility for the mobile heavy-duty equipment and is used for its movement and transportation within the experimental hall.

[0003] The utility model patent with application number 201710242810.1 discloses a linear motion platform for heavy loads, which uses rolling friction instead of the sliding friction of the guide rail of the traditional motion platform and is driven by a hydraulic servo actuator.

[0004] The utility model patent with application number 200820102112.8 discloses a linear walking mechanism driven by a gear and rack pair. Multiple wheels are set at the lower end of the walking trolley and the wheels are set in the guide rail and slide back and forth along the guide rail to limit the movement trajectory of the walking mechanism and avoid running around.

[0005] The utility model patent with application number 202420916161.4 discloses a mobile heavy-duty trolley. Through the arrangement of support plate, seat and clamping mechanism, heavy shaft parts can be clamped, thereby preventing heavy shaft parts from falling off during the movement.

[0006] While the aforementioned patents can achieve linear movement of heavy-duty equipment, their focus is on the stability of the output movement, without limiting the movement of the heavy-duty equipment being carried. During the output movement, the heavy-duty equipment may slide relative to the moving platform, posing a safety hazard. Utility Model Content

[0007] The purpose of this utility model is to provide a linear motion platform for supporting heavy-duty equipment, which ensures the tight and fixed position of the heavy-duty equipment on the linear motion platform by setting a tensioning device.

[0008] To achieve these objectives and other advantages according to the present invention, a linear motion platform for supporting heavy-duty equipment is provided, comprising:

[0009] Mobile platform;

[0010] A tensioning device is provided on the mobile platform to tension the heavy-duty equipment placed on the mobile platform;

[0011] A linear guide mechanism, wherein the mobile platform is slidably mounted on the linear guide mechanism;

[0012] A drive mechanism is mounted on the linear guide mechanism and is connected to the moving platform via a transmission connection.

[0013] Furthermore, in the linear motion platform for carrying heavy-duty equipment, the moving platform includes:

[0014] Multiple main longitudinal beams are arranged laterally at intervals on the linear guide mechanism, and the upper ends of the multiple main longitudinal beams are flush to form the bearing surface of the mobile platform.

[0015] The main crossbeams are connected to adjacent main longitudinal beams by multiple main crossbeams.

[0016] Furthermore, in the linear motion platform for carrying heavy-duty equipment, the upper end of the main longitudinal beam is provided with a platform track, which is arranged along the tensioning direction of the tensioning device.

[0017] Furthermore, in the linear motion platform for supporting heavy-duty equipment, the linear guide mechanism includes:

[0018] Two load-bearing main beams are spaced apart laterally;

[0019] A linear guide pair is provided along the longitudinal direction. Two sets of the linear guide pairs are provided at the upper end of the main load-bearing beam. The two ends of the lower end of the main longitudinal beam are respectively connected to the sliders of the linear guide pairs on the two main load-bearing beams.

[0020] Furthermore, in the linear motion platform for supporting heavy-duty equipment, the drive mechanism includes:

[0021] Two sets of hydraulic cylinders, each with its cylinder body connected to one of the two load-bearing main beams, and its piston rod connected to one of the main longitudinal beams.

[0022] Furthermore, in the linear motion platform for supporting heavy-duty equipment, the main longitudinal beams are configured as three, and the piston rod of the hydraulic cylinder is connected to the main longitudinal beam located in the middle.

[0023] Furthermore, in the linear motion platform for supporting heavy-duty equipment, a slider seat is provided at the lower end of the main longitudinal beam, and a guide rail seat is provided at the upper end of the load-bearing main beam. The slider of the linear guide rail pair is connected to the slider seat through an upper clamping plate, and its guide rail is connected to the guide rail seat through a lower clamping plate.

[0024] Furthermore, in the linear motion platform for supporting heavy-duty equipment, the tensioning device is configured as at least two sets, and the tensioning device includes:

[0025] A connecting frame, which is connected to the mobile platform;

[0026] T-shaped pull rod head;

[0027] A linear drive mechanism is connected to the T-shaped tie rod head to drive the T-shaped tie rod head to move linearly;

[0028] A rotary drive mechanism is mounted on the connecting frame and is connected to the linear drive mechanism for transmission. The rotary drive mechanism drives the T-shaped tie rod head to rotate.

[0029] Furthermore, in the linear motion platform for supporting heavy-duty equipment, the linear drive mechanism includes:

[0030] A linear drive motor is connected to the connecting frame;

[0031] The outer sleeve is connected to the rotary drive mechanism via a transmission connection.

[0032] The inner sleeve is coaxially disposed inside the outer sleeve and can slide along the axis of the outer sleeve;

[0033] The screw has one end coaxially connected to the output shaft of the linear drive motor, and the other end coaxially extends into the inner sleeve.

[0034] A movable nut is threaded onto the screw. The end of the inner sleeve closest to the linear drive motor is connected to the movable nut. The T-shaped pull rod head is located outside the outer sleeve and is connected to the end of the inner sleeve furthest from the linear drive motor.

[0035] Furthermore, in the linear motion platform for supporting heavy-duty equipment, the rotary drive mechanism includes:

[0036] A rotary drive motor is connected to the connecting frame;

[0037] The bearings are provided on the outer sleeve, and are rotatably connected to the connecting frame through the bearings.

[0038] A drive gear is coaxially mounted on the output shaft of the rotary drive motor;

[0039] A rotating gear is fitted onto the outer sleeve and meshes with the drive gear.

[0040] The beneficial effects of this utility model are:

[0041] The linear motion platform of this utility model bears heavy loads through a welded steel structure and rolling linear guide pairs. The rolling linear guide pairs also ensure the straightness requirements of the operation. The axial movement and precise positioning of the heavy-duty equipment are ensured by dual hydraulic cylinders, and the fixed position of the heavy-duty equipment on the platform is ensured by a steering and tensioning device.

[0042] Other advantages, objectives and features of this invention will be partly apparent from the following description, and partly understood by those skilled in the art through study and practice of this invention. Attached Figure Description

[0043] Figure 1 This is a schematic diagram of the linear motion platform described in this utility model;

[0044] Figure 2 This is a schematic diagram of the main longitudinal beam described in this utility model;

[0045] Figure 3 This is a schematic diagram of the main crossbeam of the present invention;

[0046] Figure 4 This is a structural schematic diagram of the load-bearing main beam described in this utility model;

[0047] Figure 5 This is a schematic diagram showing the connection between the platform track and the main longitudinal beam described in this utility model;

[0048] Figure 6 This is a schematic diagram of the linear guide pair described in this utility model;

[0049] Figure 7 This is a schematic diagram of the tensioning device described in this utility model;

[0050] Figure 8 This is a schematic diagram showing the connection between the T-shaped tie rod head and the plate body described in this utility model.

[0051] The reference numerals in the attached figures are as follows:

[0052] Main longitudinal beam 11; Main longitudinal beam top plate 111, crossbeam connecting plate 112, first transverse web 113, first longitudinal web 114; Main longitudinal beam bottom plate 115; Main crossbeam 12; Connecting web 121, flange 122; Reinforcing rib 123; Longitudinal beam connecting plate 124; Platform track 13; Adjusting shim 14; Tensioning device 2; T-shaped tie rod head 21; Linear drive motor 22; Outer sleeve 23; Inner sleeve 24; Screw 25; Moving... 26. Moving nut; 27. Sliding block; 28. Screw; 29. ​​Rotary drive motor; 210. Bearing; 211. Drive gear; 212. Rotary gear; 31. Load-bearing main beam; 311. Connecting panel; 312. Second longitudinal web; 313. Second transverse web; 314. Load-bearing main beam base plate; 315. Fixing plate; 32. Linear guide rail pair; 33. Slider seat; 34. Guide rail seat; 35. Upper clamping plate; 36. Lower clamping plate; 41. Hydraulic cylinder; 51. Strip hole. Detailed Implementation

[0053] The present invention will be further described in detail below with reference to the embodiments, so that those skilled in the art can implement it based on the description.

[0054] It should be noted that in the description of this utility model, the terms "horizontal", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0055] like Figure 1 As shown, an embodiment of this utility model provides a linear motion platform for supporting heavy-duty equipment, comprising:

[0056] Mobile platform;

[0057] Tensioning device 2, which is disposed on the mobile platform, to tension the heavy-duty equipment placed on the mobile platform;

[0058] A linear guide mechanism, wherein the mobile platform is slidably mounted on the linear guide mechanism;

[0059] A drive mechanism is mounted on the linear guide mechanism and is connected to the moving platform via a transmission connection.

[0060] In this embodiment, the heavy-duty equipment is placed on the mobile platform, and the heavy-duty equipment on the mobile platform is tightened by the tensioning device 2 to achieve a fixed position of the heavy-duty equipment on the mobile platform. When the linear motion platform is working, the linear guide mechanism limits the movement trajectory of the mobile platform, and the drive mechanism, as the power source, drives the mobile platform to move linearly, thereby realizing the linear movement of the heavy-duty equipment.

[0061] Preferably, as another embodiment of this utility model, such as Figures 1-3 As shown, the mobile platform includes:

[0062] Three main longitudinal beams 11 are arranged laterally at intervals on the linear guide mechanism, and the upper ends of the three main longitudinal beams 11 are flush to form the bearing surface of the mobile platform.

[0063] The main crossbeam 12 is connected to adjacent main longitudinal beams 11 by multiple main crossbeams 12.

[0064] In this embodiment, adjacent main longitudinal beams 11 are connected to form a whole. The moving platform adopts a steel structure, which ensures its strength and reduces weight compared to a solid steel plate structure, thus reducing the burden on the drive mechanism. Specifically, as shown... Figure 2 As shown, the main longitudinal beam 11 is composed of a main longitudinal beam top plate 111, a transverse beam connecting plate 112, a first transverse web 113, a first longitudinal web 114, and a main longitudinal beam bottom plate 115. The main longitudinal beam top plate 111 and the main longitudinal beam bottom plate 115 are arranged horizontally along the longitudinal direction and are welded together by multiple first longitudinal webs 114 and first transverse webs 113. Figure 3 As shown, the main crossbeam 12 is composed of connecting webs 121, flanges 122, and reinforcing ribs 123. Multiple connecting webs 121 are welded between the upper and lower flanges 122. To facilitate the connection between the main longitudinal beam 11 and the main crossbeam 12, multiple crossbeam connecting plates 112 are welded onto the main longitudinal beam 11. Longitudinal beam connecting plates 124 are welded at both ends of the main crossbeam 12, and reinforcing ribs 123 are welded between the longitudinal beam connecting plates 124 and the connecting webs 121. Connection holes are opened on the crossbeam connecting plates 112 and the longitudinal beam connecting plates 124 to facilitate bolt connection between them.

[0065] Preferably, as another embodiment of this utility model, such as Figure 5 As shown, the upper end of the main longitudinal beam 11 is provided with a platform track 13, which is arranged along the tensioning direction of the tensioning device 2.

[0066] In this embodiment, a platform track 13 is provided longitudinally at the upper end of the main longitudinal beam 11, and an adjusting shim 14 is connected to the platform track 13 and the main longitudinal beam 11. A groove corresponding to the platform track 13 can be provided at the lower end of the heavy-duty equipment. The heavy-duty equipment is slidably mounted on the platform track 13 through the groove and is positioned along the tensioning direction of the tensioning device 2. The heavy-duty equipment is placed and pushed along the platform track 13 until it approaches the tensioning device 2, and the tensioning device 2 tightens and fixes the heavy-duty equipment.

[0067] Preferably, in another embodiment of the present invention, the linear guide mechanism includes:

[0068] Two load-bearing main beams 31 are spaced apart in the transverse direction;

[0069] A linear guide pair 32 is arranged longitudinally. Two sets of the linear guide pairs 32 are provided at the upper end of the load-bearing main beam 31. The two ends of the lower end of the main longitudinal beam 11 are respectively connected to the sliders of the linear guide pairs 32 on the two load-bearing main beams 31.

[0070] In this embodiment, the movement trajectory of the main longitudinal beam 11 is limited by the linear guide pair 32, such as... Figure 4 As shown, the load-bearing main beam 31 includes a connecting panel 311, a second longitudinal web 312, a second transverse web 313, and a load-bearing main beam bottom plate 314.

[0071] Two connecting panels 311 are provided, spaced longitudinally apart. Each connecting panel 311 is provided with a linear guide pair 32. The connecting panels 311 are welded to the load-bearing main beam bottom plate 314 through the second longitudinal web 312 and the second transverse web 313. A recess is formed between the two connecting panels 311, and a fixing plate 315 is welded to the recess. The hydraulic cylinder is placed in the recess and fixed on the fixing plate 315.

[0072] Preferably, in another embodiment of the present invention, the driving mechanism includes:

[0073] Two sets of hydraulic cylinders, each with its cylinder body connected to one of the two load-bearing main beams 31, and its piston rod connected to the main longitudinal beam 11 located in the middle.

[0074] In this embodiment, the piston rods of two sets of hydraulic cylinders extend and retract synchronously, so that both ends of the moving platform are simultaneously subjected to force to maintain stable movement.

[0075] Preferably, as another embodiment of this utility model, such as Figure 6 As shown, the lower end of the main longitudinal beam 11 is provided with a slider seat 33, the upper end of the load-bearing main beam 31 is provided with a guide rail seat 34, the slider of the linear guide rail pair 32 is connected to the slider seat 33 through the upper clamping plate 35, and its guide rail is connected to the guide rail seat 34 through the lower clamping plate 36.

[0076] Preferably, in another embodiment of this utility model, the tensioning device 2 is configured as at least two sets, and the two sets of tensioning devices 2 are arranged laterally at intervals, such as... Figure 7 As shown, the tensioning device 2 includes:

[0077] A connecting frame, which is connected to the mobile platform;

[0078] T-shaped pull rod head 21;

[0079] A linear drive mechanism is connected to the T-shaped tie rod head 21 to drive the T-shaped tie rod head 21 to move linearly along the longitudinal direction;

[0080] A rotary drive mechanism is mounted on the connecting frame and is connected to the linear drive mechanism for transmission. The rotary drive mechanism drives the T-shaped tie rod head 21 to rotate.

[0081] In this embodiment, the T-shaped tie rod head 21 is horizontally positioned, and its end can be rotated to a horizontal or vertical position under the drive of the rotary drive mechanism. At this time, a plate is vertically positioned on the heavy-duty equipment, and a strip-shaped hole 51 is formed on the plate. For example... Figure 8 As shown in (a), in the initial state, the end of the T-shaped pull rod head 21 is parallel to the strip hole 51. At this time, the linear drive mechanism drives the T-shaped pull rod head 21 to move linearly and extend into the strip hole 51. The linear drive mechanism stops working, and then the rotation drive mechanism drives the T-shaped pull rod head 21 to rotate 90°, as shown in (a). Figure 8 As shown in (b), at this time, the end of the T-shaped tie rod head 21 is perpendicular to the strip hole 51. Then, the linear drive mechanism drives the T-shaped tie rod head 21 to move outward from inside the strip hole 51. When the end of the T-shaped tie rod head 21 moves to contact the plate on the heavy-duty equipment, it will apply a force to the plate and tighten it. In this embodiment, the structure of the connecting frame is determined according to the actual needs of the site and is not limited here. Figure 7 It is not shown in the middle.

[0082] Preferably, as another embodiment of this utility model, such as Figure 7 As shown, the linear drive mechanism includes:

[0083] A linear drive motor 22 is connected to the connecting frame;

[0084] The outer sleeve 23 is connected to the rotary drive mechanism via a transmission connection.

[0085] The inner sleeve 24 is coaxially disposed inside the outer sleeve 23 and can slide along the axis of the outer sleeve 23. Specifically, a strip groove is provided on the inner wall of the outer sleeve 23 along its axis, and a sliding block 27 is provided in the strip groove. The sliding block 27 is connected to the inner sleeve 24. Since the sliding block 27 can only slide along its length in the strip groove, the inner sleeve 24 can be restricted to slide only along the axis of the outer sleeve 23 by the sliding block 27.

[0086] The screw 25 has one end coaxially connected to the output shaft of the linear drive motor 22, and the other end coaxially extending into the inner sleeve 24; for example... Figure 7 As shown, a slip ring can be fitted onto the other end of the screw 25. The slip ring slides and fits against the inner wall of the inner sleeve 24, supporting the screw 25 and improving its stability during rotation.

[0087] The movable nut 26 is threaded onto the screw 25. The inner sleeve 24 is connected to the movable nut 26 at one end near the linear drive motor 22. Specifically, the two can be connected by a screw 28. The T-shaped pull rod head 21 is located outside the outer sleeve 23 and is connected to the end of the inner sleeve 24 away from the linear drive motor 22.

[0088] In this embodiment, when the linear drive motor 22 is working, it drives the screw 25 to rotate. The screw 25 drives the movable nut 26 to rotate. However, the nut is connected to the inner sleeve 24, and the inner sleeve 24 can only slide along the axis of the outer sleeve 23, that is, move along the length direction of the screw 25. At this time, the nut will move along the length direction of the screw 25 under the drive of the screw 25, that is, drive the inner sleeve 24 to slide along the axis of the outer sleeve 23. The outer sleeve 23 is fixed in position. At this time, the inner sleeve 24 will drive the T-shaped pull rod head 21 to move horizontally in a straight line. By changing the forward and reverse rotation of the linear drive motor 22, the T-shaped pull rod head 21 can be moved closer to or away from the linear drive motor 22.

[0089] Preferably, as another embodiment of this utility model, such as Figure 7 As shown, the rotary drive mechanism includes:

[0090] A rotary drive motor 29 is connected to the connecting frame;

[0091] Bearing 210, at least two bearings 210 are sleeved on the outer sleeve 23 and are rotatably connected to the connecting frame through the bearings 210;

[0092] The drive gear 211 is coaxially mounted on the output shaft of the rotary drive motor 29;

[0093] A rotating gear 212 is sleeved on the outer sleeve 23 and meshes with the drive gear 211.

[0094] In this embodiment, the rotary drive motor 29 drives the drive gear 211 to rotate, and the drive gear 211 drives the rotary gear 212 to rotate. At this time, the outer sleeve 23 rotates together with the rotary gear 212. While the outer sleeve 23 rotates, since the outer cylinder and the inner sleeve 24 can only move relative to each other along their axis, the outer sleeve 23 will drive the inner sleeve 24 to rotate together. The inner sleeve 24 drives the movable nut 26 to rotate on the screw 25. At the same time as the inner sleeve 24 rotates, the angle of the T-shaped pull rod head 21 also rotates together.

[0095] Although the embodiments of this utility model have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for this utility model. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, this utility model is not limited to the specific details and embodiments shown and described herein.

Claims

1. A linear motion platform for carrying a heavy load device, characterized by, The utility model relates to a heavy load equipment tensioning device, including: Mobile platform; Tensioning device, which is arranged on the mobile platform to tension heavy load equipment placed on the mobile platform; Linear guide mechanism, the mobile platform is slidably arranged on the linear guide mechanism; Driving mechanism, which is arranged on the linear guide mechanism and is in driving connection with the mobile platform.

2. A linear motion platform for carrying a heavy load device as claimed in claim 1, characterized in that, The mobile platform includes: A plurality of main longitudinal beams, which are arranged in transverse intervals on the linear guide mechanism, and the upper ends of the main longitudinal beams are flush to constitute a load bearing surface of the mobile platform; Main cross beams, which are connected between adjacent main longitudinal beams.

3. A linear motion platform for carrying a heavy load device as claimed in claim 2, characterized in that, The upper end of the main longitudinal beam is provided with a platform track arranged in the tensioning direction of the tensioning device.

4. The linear motion platform for carrying a heavy load device as claimed in claim 2, wherein, The linear guide mechanism includes: Two load bearing main beams arranged in transverse intervals; Linear guide pairs arranged in the longitudinal direction, the upper ends of the load bearing main beams are provided with two groups of linear guide pairs, and the lower ends of the main longitudinal beams are respectively connected with the sliders of the linear guide pairs on the two load bearing main beams.

5. A linear motion platform for carrying a heavy load device as claimed in claim 4, characterized in that, The driving mechanism includes: Two groups of hydraulic cylinders, the cylinder bodies of which are respectively connected with the two load bearing main beams, and the piston rods of which are connected with one of the main longitudinal beams.

6. A linear motion platform for carrying a heavy load device as claimed in claim 5, characterized in that, The main longitudinal beam is arranged in three, and the piston rod of the hydraulic cylinder is connected with the middle main longitudinal beam.

7. The linear motion platform for carrying a heavy load device as claimed in claim 4, wherein, The lower end of the main longitudinal beam is provided with a slider seat, the upper end of the load bearing main beam is provided with a guide rail seat, the slider of the linear guide pair is connected with the slider seat through an upper clamping plate, and the guide rail is connected with the guide rail seat through a lower clamping plate.

8. A linear motion platform for carrying a heavy load device as claimed in any one of claims 1 to 7, characterized in that, The tensioning device is arranged in at least two groups, and the tensioning device includes: A connecting frame connected with the mobile platform; A T-shaped tension rod head; A linear driving mechanism in driving connection with the T-shaped tension rod head to drive the linear movement of the T-shaped tension rod head; A rotary driving mechanism arranged on the connecting frame and in driving connection with the linear driving mechanism, the rotary driving mechanism drives the rotation of the T-shaped tension rod head.

9. A linear motion platform for carrying a heavy load device as claimed in claim 8, characterized in that, The linear driving mechanism includes: A linear driving motor connected with the connecting frame; An outer sleeve in driving connection with the rotary driving mechanism; An inner sleeve coaxially arranged in the outer sleeve and slidably arranged along the axis of the outer sleeve; A screw rod coaxially connected at one end with the output shaft of the linear driving motor and coaxially extended into the inner sleeve at the other end; A moving nut threadedly mounted on the screw rod, the end of the inner sleeve close to the linear driving motor is connected with the moving nut, and the T-shaped tension rod head is located outside the outer sleeve and connected at the end away from the linear driving motor with the inner sleeve.

10. A linear motion platform for carrying a heavy load device as claimed in claim 9, characterized in that, The rotary driving mechanism includes: A rotary driving motor connected with the connecting frame; Bearings, at least two of which are arranged on the outer sleeve and in rotary connection with the connecting frame through the bearings; A driving gear coaxially mounted on the output shaft of the rotary driving motor; A rotary gear arranged on the outer sleeve and in mesh with the driving gear.

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