A slewing bearing transmission smoothness test bench

Abstract

The application discloses a slewing bearing transmission stability detection test bench, which comprises a bottom plate, clamping mechanisms and a detection mechanism, the top of the bottom plate is fixedly clamped with an operation table, the upper surface of the operation table is slidably clamped with two clamping mechanisms, the side of the bottom plate is respectively provided with the detection mechanism and a display screen, the clamping mechanism comprises a sliding rail, a moving frame and a clamping disc, the sliding rail is located on the top surface of the operation table, a sliding block is slidably clamped on the sliding rail, the moving frame is fixedly connected with the sliding block, the top of the moving frame is rotatably connected with a steering seat, and the side of the steering seat is slidably connected with the clamping disc; the spacing of the two clamping mechanisms can be adjusted through the cooperation of the sliding block and the sliding rail, the clamping disc can be pushed through the rotation of the screw rod, the two clamping discs can clamp the slewing bearing, the steering seat can be rotated through the action of the rotating shaft, the two steering seats rotate 180° at the same time, the clamping direction of the clamping disc is changed, and thus the slewing bearing with the inner ring as a tooth part or the outer ring as a tooth part can be adapted.

Description

Technical Field

[0001] This invention relates to the technical field of slewing bearings, specifically to a test bench for testing the transmission smoothness of slewing bearings. Background Technology

[0002] Slewing bearings are a new type of mechanical component. They consist of inner and outer rings, rolling elements, etc. They are widely used in real industry and are an essential transmission component for machines that require relative rotational motion between two objects and simultaneously bear axial force, radial force, and overturning moment.

[0003] Since slewing bearings are mostly used in marine equipment, construction machinery and other fields, their performance requirements are high. Before leaving the factory, they need to be tested for transmission smoothness. The current slewing bearing testing test benches are not adjustable in size and cannot be adapted to various types of slewing bearings. In addition, some slewing bearings have teeth on the inner or outer rings and are not easy to fix. Summary of the Invention

[0004] The present invention addresses the problem of overly simplistic solutions in existing technologies by providing a significantly different solution. It primarily offers a slewing bearing transmission stability testing bench, which solves the technical problems mentioned in the background section regarding the inability of current slewing bearing testing benches to adjust their size, making them unsuitable for various types of slewing bearings, and the difficulty in fixing some slewing bearings with teeth on their inner or outer rings.

[0005] The technical solution adopted by the present invention to solve the above-mentioned technical problems is as follows:

[0006] A test bench for testing the transmission stability of a slewing bearing includes a base plate, a clamping mechanism, and a testing mechanism. An operating table is fixedly clamped to the top of the base plate, and two clamping mechanisms are slidably clamped to the upper surface of the operating table. A testing mechanism and a display screen are respectively installed on one side of the base plate.

[0007] Preferably, the locking mechanism includes a slide rail, a movable frame, and a locking plate. The slide rail is located on the top surface of the operating table, and a slider is slidably locked on the slide rail. The movable frame is fixedly connected to the slider, and a steering seat is rotatably connected above the movable frame. The locking plate is slidably connected to one side of the steering seat.

[0008] Preferably, the detection mechanism includes a column, a first bracket, and an encoder. The column is fixedly connected to the base plate, and the outer cylindrical surface of the column is slidably engaged with the first bracket. A second bracket is rotatably connected to the end of the first bracket away from the column. The end of the second bracket away from the first bracket is open, with a snap ring fixedly connected above it and a fixing ring fixedly connected below it. The snap ring and the fixing ring are fixedly engaged with the encoder, and the output end of the encoder is driven by a gear.

[0009] Preferably, both sides of the movable frame are engaged with set bolts, and a rotating shaft is rotatably connected between the movable frame and the steering seat. A spring is wound around the outer cylindrical surface of the rotating shaft, and two sets of grooves and protrusions are respectively opened on the adjacent surfaces of the movable frame and the steering seat.

[0010] Preferably, a screw is engaged in the middle of the steering seat, and the end of the screw is located inside the retaining plate, and a bearing is fixedly engaged with the retaining plate.

[0011] Preferably, the side of the locking plate away from the steering seat is concave arc-shaped, and a clamping plate is fixedly bonded to one side of it. The locking plate extends to a support platform below the clamping plate. Two sliding rods are fixedly connected to the side of the locking plate adjacent to the steering seat, and the sliding rods pass through the locking holes opened on the steering seat.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0013] This invention, through the cooperation of a slider and a slide rail, allows for adjustment of the distance between two clamping mechanisms. Rotating the screw advances the clamping discs, enabling the two clamping discs to hold the slewing bearing. The steering seats can rotate under the action of the rotating shaft. When both steering seats rotate 180° simultaneously, the clamping direction of the clamping discs changes, thus adapting to slewing bearings with toothed inner or outer rings. This solves the problems of current slewing bearing testing benches, which cannot be adjusted in size, cannot adapt to various types of slewing bearings, and have toothed inner or outer rings that are difficult to fix.

[0014] The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0015] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0016] Figure 2 This is a schematic diagram of the snap-fit ​​mechanism of the present invention;

[0017] Figure 3 This is a schematic diagram of the snap-fit ​​mechanism from another perspective of the present invention;

[0018] Figure 4 This is a schematic diagram showing the separation of the moving frame and the steering seat according to the present invention;

[0019] Figure 5 This is a side view of the cleaning mechanism of the present invention;

[0020] Figure 6 This is a schematic diagram of the card receiving tray structure of the present invention;

[0021] Figure 7 This is a schematic diagram of the detection mechanism of the present invention.

[0022] Explanation of reference numerals in the attached figures:

[0023] 100. Base plate; 200. Operating table; 300. Snap-fit ​​mechanism; 310. Slide rail; 320. Slider; 330. Moving frame; 331. Set bolt; 332. Rotating shaft; 333. Spring; 334. Groove; 335. Protrusion; 340. Steering seat; 341. Screw; 342. Snap-fit ​​hole; 350. Snap-fit ​​plate; 351. Pressure plate; 352. Support platform; 353. Slide rod; 354. Bearing; 400. Detection mechanism; 410. Column; 420. First support; 430. Second support; 440. Snap-fit ​​ring; 450. Fixing ring; 460. Encoder; 470. Gear; 500. Display screen. Detailed Implementation

[0024] To facilitate understanding of the present invention, a more comprehensive description of the present invention will be given below with reference to the accompanying drawings, which illustrate several embodiments of the present invention. However, the present invention can be implemented in different forms and is not limited to the embodiments described in the text. Rather, these embodiments are provided to make the disclosure of the present invention more thorough and complete.

[0025] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly associated with those skilled in the art to which this invention pertains. The terminology used herein in the specification of this invention is for the purpose of describing particular embodiments and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0027] Please refer to the appendix carefully. Figure 1A test bench for testing the transmission stability of a slewing bearing includes a base plate 100, a clamping mechanism 300, and a testing mechanism 400. An operating table 200 is fixedly clamped to the top of the base plate 100. Two clamping mechanisms 300 are slidably clamped to the upper surface of the operating table 200. The testing mechanism 400 and a display screen 500 are respectively installed on one side of the base plate 100. The slewing bearing is clamped and fixed by the two clamping mechanisms 300. The testing mechanism 400 is adjusted to a suitable position to mesh the gear 470 with the teeth of the slewing bearing. Then, when the encoder 460 is working, the teeth of the slewing bearing rotate, and the encoder 160 records the resistance and stability of the slewing bearing during the rotation process and feeds it back to the display screen 500 so that the operator can directly test the performance of the slewing bearing.

[0028] Please refer to the appendix carefully. Figure 2-6The locking mechanism 300 includes a slide rail 310, a movable frame 330, and a locking plate 350. The slide rail 310 is located on the top surface of the operating table 200. A slider 320 is slidably locked onto the slide rail 310. The movable frame 330 is fixedly connected to the slider 320. A steering seat 340 is rotatably connected above the movable frame 330. The locking plate 350 is slidably connected to one side of the steering seat 340. The distance between the two locking mechanisms 300 can be adjusted by the cooperation between the slider 320 and the slide rail 310 to accommodate different types of slewing bearings. Set bolts 331 are engaged on both sides of the movable frame 330. After the set bolts 331 are engaged downwards, their bottom ends are connected to the operating table. The platform of 200 contacts the moving frame 330, thereby fixing its position. A rotating shaft 332 rotatably connects the moving frame 330 and the steering seat 340. A spring 333 is wound around the outer cylindrical surface of the rotating shaft 332. Two sets of grooves 334 and protrusions 335 are respectively provided on the adjacent surfaces of the moving frame 330 and the steering seat 340. The steering seat 340 can rotate under the action of the rotating shaft 332. Both steering seats 340 rotate 180° simultaneously, changing the snap-fit ​​direction of the snap-fit ​​disc 350. This allows it to adapt to rotary supports with toothed inner or outer rings. Furthermore, when the steering seat 340 rotates, the rotating shaft 332 extends its height, and the moving frame 330... The two sets of grooves 334 and protrusions 335 on the adjacent surface of the steering seat 340 are in a disengaged state. When the steering seat 340 rotates 180°, the protrusions 335 are engaged in the grooves 334 by the tension of the spring 333, thus limiting their position. A screw 341 is engaged in the middle of the steering seat 340. The end of the screw 341 is located in the retaining plate 350 and is fixedly engaged with the retaining plate 350 by a bearing 354. By rotating the screw 341, the retaining plate 350 can be pushed forward, allowing the two retaining plates 350 to clamp the slewing bearing. The retaining plate 350 has a concave arc shape in the middle on the side away from the steering seat 340 and convex arc shapes on both sides. When clamping the outer ring of the slewing bearing, the slewing bearing contacts the concave arc edge. When clamping the inner ring, the slewing bearing contacts the convex arc edges on both sides. Both are fixedly bonded with a clamping plate 351. The clamping plate 351 is made of rubber and has a large friction force after contacting the slewing bearing, so that when the gear 470 meshes with its teeth, the other locking ring is fixed. The locking plate 350 extends below the clamping plate 351 and has a support platform 352. Two sliding rods 353 are fixedly connected to one side of the locking plate 350 adjacent to the steering seat 340. The sliding rods 353 pass through the locking holes 342 opened on the steering seat 340 to bear the weight of the slewing bearing.

[0029] Please refer to the appendix carefully. Figure 7The testing mechanism 400 includes a column 410, a first bracket 420, and an encoder 460. The column 410 is fixedly connected to the base plate 100. The outer cylindrical surface of the column 410 is slidably engaged with the first bracket 420. A second bracket 430 is rotatably connected to the end of the first bracket 420 away from the column 410. The end of the second bracket 430 away from the first bracket 420 is open, with a locking ring 440 fixedly connected above it and a fixing ring 450 fixedly connected below it. The locking ring 440 and the fixing ring 450 are connected together. The encoder 460 is fixedly attached. The output end of the encoder 460 is connected to a gear 470. The position of the encoder 460 can be adjusted by the cooperation of the column 410, the first bracket 420 and the second bracket 430. After adjustment, the linkage between the column 410, the first bracket 420 and the second bracket 430 must be tightened to maintain stability when the encoder 460 is working. The gear 470 can be replaced to adapt to the tooth pitch of the slewing bearing, and the rubber wheel can be replaced for use in toothless slewing bearings.

[0030] The specific operation process of this invention is as follows:

[0031] The distance between the two locking mechanisms 300 can be adjusted by the cooperation of the slider 320 and the slide rail 310 to accommodate different types of slewing bearings. After the set bolt 331 is engaged downwards, its bottom end contacts the table surface of the operating table 200, thereby fixing the position of the moving frame 330. By rotating the screw 341, the locking plate 350 can be pushed forward, allowing the two locking plates 350 to clamp the slewing bearing. Then, when the encoder 460 is working, the teeth of the slewing bearing rotate, and the encoder 160 records the resistance and stability of the slewing bearing during the rotation process and feeds it back to the display screen 500 so that the operator can directly test the performance of this slewing bearing. The steering seat 340 can be rotated by the action of the rotating shaft 332. The two steering seats 340 rotate 180° at the same time, changing the locking direction of the locking plate 350, thereby accommodating slewing bearings with teeth on the inner ring or the outer ring.

[0032] The present invention has been described by way of example in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvement made by adopting the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution of the present invention to other occasions without modification, shall be within the protection scope of the present invention.

Claims

1. A test bench for testing the smoothness of slewing bearing transmission, characterized in that: It includes a base plate (100), a snap-fit ​​mechanism (300) and a detection mechanism (400). An operating table (200) is fixedly snapped onto the top of the base plate (100). Two snap-fit ​​mechanisms (300) are slidably snapped onto the upper surface of the operating table (200). A detection mechanism (400) and a display screen (500) are respectively installed on one side of the base plate (100). The locking mechanism (300) includes a slide rail (310), a movable frame (330), and a locking plate (350). The slide rail (310) is located on the top surface of the operating table (200). A slider (320) is slidably locked on the slide rail (310). The movable frame (330) is fixedly connected to the slider (320). A steering seat (340) is rotatably connected above the movable frame (330). The locking plate (350) is slidably connected to one side of the steering seat (340). Both sides of the movable frame (330) are fitted with set bolts (331). A rotating shaft (332) is rotatably connected between the movable frame (330) and the steering seat (340). A spring (333) is wound around the outer cylindrical surface of the rotating shaft (332). Two sets of grooves (334) and protrusions (335) are respectively opened on the adjacent surfaces of the movable frame (330) and the steering seat (340). The steering seat (340) can be rotated by the action of the rotating shaft (332). The two steering seats (340) can rotate 180° at the same time, so that the snapping direction of the snapping plate (350) changes, which can adapt to the slewing bearing with the inner ring being toothed or the outer ring being toothed.

2. The slewing bearing transmission stability testing bench according to claim 1, characterized in that: The detection mechanism (400) includes a column (410), a first bracket (420), and an encoder (460). The column (410) is fixedly connected to the base plate (100). The outer cylindrical surface of the column (410) is slidably engaged with the first bracket (420). The end of the first bracket (420) away from the column (410) is rotatably connected to a second bracket (430). The end of the second bracket (430) away from the first bracket (420) is open. A snap ring (440) is fixedly connected above it, and a fixing ring (450) is fixedly connected below it. The snap ring (440) and the fixing ring (450) are fixedly engaged with the encoder (460). The output end of the encoder (460) is driven by a gear (470).

3. The slewing bearing transmission stability testing bench according to claim 1, characterized in that: The steering seat (340) is engaged with a screw (341) in the middle, and the end of the screw (341) is located in the retaining plate (350), and a bearing (354) is fixedly engaged with the retaining plate (350).

4. The slewing bearing transmission stability testing bench according to claim 1, characterized in that: The side of the retaining plate (350) away from the steering seat (340) is concave arc-shaped, and a clamping plate (351) is fixedly bonded to one side of it. The retaining plate (350) extends below the clamping plate (351) and has a support platform (352). Two slide rods (353) are fixedly connected to the side of the retaining plate (350) adjacent to the steering seat (340). The slide rods (353) pass through the retaining holes (342) opened on the steering seat (340).

Images