High-rigidity lifting platform

Abstract

The utility model relates to the technical field of lifting platforms, in particular to a high-rigidity lifting platform. The lifting device comprises a lower fixing plate, an outer guide rail is installed on the upper portion of the lower fixing plate, a motor is installed on the lower portion of the lower fixing plate, a movable lead screw nut is arranged in the outer guide rail, a lifting guide rail is sleeved on the lead screw nut, the motor drives a lead screw, and the lead screw nut is sleeved on the lead screw. A roller pin retainer is clamped between the outer guide rail and the ascending guide rail; a plurality of limiting holes are formed in the roller pin retainer, a roller pin is transversely arranged in each limiting hole, and the roller pins are in close contact with the side face of the ascending guide rail; the roller pin retainer is arranged between the ascending guide rail and the outer guide rail, and the ascending guide rail moves stably through the roller pins, so that the overall rigidity can be improved, and the bearing capacity is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to lifting platform technical field especially a high rigidity lifting platform. BACKGROUND

[0002] In the field of existing automation equipment, various lifting platforms will be used, and the precision requirement of the lifting platform is higher for some equipment with not very large size, but the existing lifting platform is not good in lifting stability, is not rigid enough and has low bearing capacity.

[0003] Therefore, based on the defects of the existing lifting platform, the existing lifting platform needs to be improved. CONTENT OF THE UTILITY MODEL

[0004] The utility model discloses a high rigidity lifting platform, which solves the defects of the existing lifting platform, such as insufficient rigidity and low bearing capacity.

[0005] To achieve the above object, the utility model is realized by the following technical scheme.

[0006] A high rigidity lifting platform, comprising a lower fixed plate, the lower fixed plate is provided with an outer guide rail on the upper part and a motor on the lower part, the outer guide rail is provided with a movable screw nut inside, the screw nut is provided with a lifting guide rail, the motor is provided with a screw rod, and the screw nut is sleeved on the screw rod; a needle roller retainer is clamped between the outer guide rail and the lifting guide rail; the needle roller retainer is provided with a plurality of limiting holes, and one needle roller is arranged in each limiting hole in a transverse manner, and the needle roller is in close contact with the side surface of the lifting guide rail.

[0007] Further, the lower fixed plate is provided with a hole in the middle, a motor is arranged below the lower fixed plate, the driving shaft of the motor penetrates through the lower fixed plate and is located in the outer guide rail, and the motor drives the screw nut to lift.

[0008] Further, the needle roller retainer is L-shaped, the needle roller retainer wraps the edge of the lifting guide rail, and the cooperation of the lifting guide rail can be better maintained.

[0009] Further, the outer guide rail is in the shape of a square frame, the inside is a square hole, there are four needle roller retainers, which are respectively located at the four corners of the square hole of the outer guide rail, the needle roller retainers are located between the lifting guide rail and the outer guide rail, and the movement of the lifting guide rail is ensured to be stable.

[0010] Further, two side surfaces of the square hole of the outer guide rail are respectively formed with vertical mounting grooves, adjusting guide rails are respectively fixedly installed in the mounting grooves, the adjusting guide rails correspondingly contact the needle roller retainers, and the adjusting guide rails can correspondingly adjust the clamping degree of the needle roller retainers and the lifting guide rail.

[0011] Further, the outer guide rail is provided with a locking screw hole, the locking screw hole penetrates the mounting groove of the outer guide rail, the adjusting guide rail is provided with a locking screw hole, and the locking screw fixes the adjusting guide rail, so that the adjusting guide rail is positioned.

[0012] Further, the outer guide rail is provided with an adjusting screw hole, the adjusting screw hole penetrates the mounting groove of the outer guide rail, and the adjusting screw is movably abutted with the surface of the adjusting guide rail through the adjusting screw hole, so that the adjusting guide rail can be adjusted, and the clamping degree of the needle retainer and the upper guide rail can be adjusted.

[0013] The beneficial effect of the utility model lies in that the needle retainer is arranged between the upper guide rail and the outer guide rail, the upper guide rail moves stably through the arrangement of the needle, so that the rigidity of the whole can be improved, and the bearing capacity can be improved. ACCURATE DRAWING

[0014] Figure 1 It is a structural schematic view of the utility model.

[0015] Figure 2 It is another angle schematic view of the utility model.

[0016] Figure 3 It is a structural exploded schematic view of the utility model.

[0017] Figure 4 It is a local structural schematic view of the utility model.

[0018] Label and explanation:

[0019] Lower fixed plate 1, motor 2, screw rod 3, screw rod nut 4, outer guide rail 5, upper guide rail 6, upper plate 7, first adjusting guide rail 8, first needle retainer 9, needle 10, second adjusting guide rail 11, second needle retainer 12, third adjusting guide rail 13, fourth adjusting guide rail 14, third needle retainer 15, fourth needle retainer 16, limiting hole 17, locking screw 18, adjusting screw 19. Specific implementation

[0020] The utility model is further described below in combination with the drawings.

[0021] See Figure 1 --- Figure 4 The utility model discloses a high rigidity lifting platform, which comprises a lower fixed plate 1, wherein the lower fixed plate 1 is fixedly installed with an outer guide rail 5. The lower fixed plate 1 is provided with a hole in the middle part, and a motor 2 is installed below the lower fixed plate 1. The driving shaft of the motor 2 penetrates the lower fixed plate 1 and is located in the outer guide rail 5. The motor 2 is driven by a screw rod 3, and the screw rod 3 is provided with a screw rod nut 4. The screw rod nut 4 is sleeved with an upper guide rail 6. The top of the upper guide rail 6 is installed with an upper plate 7. When the screw rod nut 4 moves, the upper guide rail 6 is driven to ascend and descend.

[0022] The outer guide rail 5 is in the shape of a square frame, and the inside is a square through hole. Four corners of the outer guide rail 5 are matched with the ascending guide rail 6. The ascending guide rail 6 is in the shape of a square. Four vertical edges of the ascending guide rail 6 are respectively matched with the first needle roller cage 9, the second needle roller cage 12, the third needle roller cage 15 and the fourth needle roller cage 16. Each needle roller cage is in the shape of L. A plurality of limiting holes 17 are formed in each face of the needle roller cage. One needle roller 10 is horizontally arranged in each limiting hole 17. The needle roller 10 is in close contact with the side surface of the ascending guide rail 6, so that the ascending guide rail 6 can be smoothly lifted and lowered.

[0023] Two vertical installation grooves are respectively formed in two side surfaces of the square through hole of the outer guide rail 5. The first adjusting guide rail 8, the second adjusting guide rail 11, the third adjusting guide rail 13 and the fourth adjusting guide rail 14 are respectively fixedly installed in the installation grooves. The first adjusting guide rail 8 corresponds to one side surface of the first needle roller cage 9. The second adjusting guide rail 11 and the third adjusting guide rail 13 respectively correspond to one side surface of the second needle roller cage 12. The fourth adjusting guide rail 14 corresponds to one side surface of the third needle roller cage 15.

[0024] The outer guide rail 5 is provided with a locking screw hole. The locking screw hole penetrates the installation groove of the outer guide rail 5. The first adjusting guide rail 8, the second adjusting guide rail 11, the third adjusting guide rail 13 and the fourth adjusting guide rail 14 are provided with the locking screw hole. The locking screw 18 fixes the first adjusting guide rail 8, the second adjusting guide rail 11, the third adjusting guide rail 13 and the fourth adjusting guide rail 14.

[0025] The outer guide rail 5 is provided with an adjusting screw hole. The adjusting screw hole penetrates the installation groove of the outer guide rail 5. The adjusting screw 19 passes through the adjusting screw hole and is in movable abutment with the surface of the first adjusting guide rail 8, the second adjusting guide rail 11, the third adjusting guide rail 13 and the fourth adjusting guide rail 14. The adjusting screw 19 is used for adjusting each adjusting guide rail, so that the installation and adjustment of the ascending guide rail 6 are more convenient.

[0026] The plurality of needle rollers 10 on the first needle roller cage 9, the second needle roller cage 12, the third needle roller cage 15 and the fourth needle roller cage 16 can keep the ascending guide rail 6 stable when the ascending guide rail 6 is lifted and lowered. The first adjusting guide rail 8, the second adjusting guide rail 11, the third adjusting guide rail 13 and the fourth adjusting guide rail 14 can increase the cooperation with the ascending guide rail 6, keep high rigidity, and make the ascending guide rail 6 obtain greater bearing capacity.

[0027] Of course, the above-mentioned embodiments are only preferred examples of the utility model, and are not limited to the scope of the utility model. Any equivalent changes or modifications made according to the structure, features and principles described in the utility model patent application scope should be included in the utility model patent application scope.

Claims

1. A high-rigidity lifting platform, characterized in that: It includes a lower fixed plate, an outer guide rail mounted on the upper part of the lower fixed plate and a motor mounted on the lower part. The outer guide rail has a movable lead screw nut, and a rising guide rail is sleeved on the lead screw nut. The motor drives the lead screw, and the lead screw nut is sleeved on the lead screw. A needle roller retainer is sandwiched between the outer guide rail and the rising guide rail. The needle roller retainer has multiple limiting holes, and a needle roller is arranged laterally in each limiting hole. The needle roller is in close contact with the side of the rising guide rail.

2. The high-rigidity lifting platform according to claim 1, characterized in that: The lower fixing plate has an opening in the middle, and a motor is installed below the lower fixing plate. The drive shaft of the motor passes through the lower fixing plate and is located inside the outer guide rail.

3. The high-rigidity lifting platform according to claim 1, characterized in that: The needle roller retainer is L-shaped and wraps around the edge of the rising guide rail.

4. A high-rigidity lifting platform according to claim 3, characterized in that: The outer guide rail is square in shape with a square through hole inside. There are four needle roller retainers, which are located at the four corners of the square through hole of the outer guide rail.

5. A high-rigidity lifting platform according to claim 1, characterized in that: The outer guide rail has vertical mounting grooves formed on two sides of its square through hole. Adjustment guide rails are fixedly installed in the mounting grooves, and the adjustment guide rails correspond to the needle roller retainers.

6. A high-rigidity lifting platform according to claim 5, characterized in that: The outer guide rail has a locking screw hole that passes through the mounting groove of the outer guide rail. The adjusting guide rail also has a locking screw hole, and the locking screw secures the adjusting guide rail.

7. A high-rigidity lifting platform according to claim 6, characterized in that: The outer guide rail is provided with an adjustment screw hole, which passes through the mounting groove of the outer guide rail. The adjustment screw passes through the adjustment screw hole and moves against the surface of the adjustment guide rail.

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