A needle roller pressure plate structure

Abstract

This utility model discloses a needle roller pressure plate structure, belonging to the field of bearing needle roller technology. It includes a support assembly comprising a support base with a guide shaft and a first screw fixedly inserted inside, the first screw having a first hand-tightening nut threadedly connected to its external surface; a support plate slidably connected to the outside of the guide shaft and the first screw; a lifting assembly and a protective pressure plate. The lifting assembly is fixedly connected to the outer wall of the support plate, and the lifting end of the lifting assembly is connected to the protective pressure plate. The lifting assembly is used for height adjustment of the protective pressure plate. Through the support assembly, the support plate can be horizontally and stably supported, while simultaneously achieving lateral horizontal displacement of the support plate. This allows for left-right horizontal adjustment of the protective channel formed by the support plate and the pressure plate, effectively adapting the distribution of the protective channel to limit and protect needle rollers of different lengths, greatly improving the protective adaptability of the device.

Description

Technical Field

[0001] This utility model relates to the field of bearing needle roller technology, specifically a needle roller pressure plate structure. Background Technology

[0002] Bearing needle rollers are slender cylindrical rolling elements commonly used in needle roller bearings. Current needle roller machining processes mainly include cutting, chamfering, heat treatment, grinding, shaping, and grouping. The grinding process is extremely critical, as it has a decisive influence on the roundness and shape of the rolling element. While grinding increases the center height of the rolling element, this can lead to a serious problem: an excessively high center height makes the rolling element prone to colliding with the support plate, grinding wheel, or guide wheel at extremely high speeds during operation, potentially even causing it to fly out and injure operators. This seriously threatens operator safety, compromising both safe and efficient production.

[0003] An investigation revealed that a Chinese utility model patent (publication number: CN205852538U) discloses a needle roller pressure plate structure, including a support plate, a pressure plate, and a fixed frame slidably connected to the pressure plate. The pressure plate is positioned above the support plate, and the fixed frame is mounted on the support plate. This utility model features a movable pressure plate above the support plate, allowing adjustment of the distance between the support plate and the pressure plate to accommodate needle rollers of different specifications. It ensures that even with an increased center height, the needle rollers can still move within the channel formed by the pressure plate and the support plate, preventing needle rollers from splashing out and injuring operators, thus guaranteeing both operator safety and production safety.

[0004] While the aforementioned patent can limit and protect needle rollers of different specifications by adjusting the distance between the support plate and the pressure plate, preventing needle rollers from flying out and injuring operators, the specifications of the needle rollers are not limited to the diameter; their length also has a certain range. Consequently, the patent cannot adapt to changes in the length of the needle rollers when protecting them, thus failing to provide limit protection for needle rollers of different lengths. Furthermore, the adjustment of the pressure plate height by rotating the threaded rods at both ends requires high precision. If the rotation speed of the threaded rods at both ends deviates significantly, it will cause different displacements at both ends of the pressure plate, leading to jamming and reducing the convenience of adjusting the pressure plate height.

[0005] Therefore, this utility model provides a needle roller pressure plate structure to solve the above problems. Utility Model Content

[0006] (a) Technical problems to be solved

[0007] This utility model provides a needle roller pressure plate structure, which aims to solve the problems mentioned in the background art.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, the present invention provides the following technical solution: a needle roller pressure plate structure, including a support assembly, the support assembly including a support base, a guide shaft and a first screw fixedly inserted inside the support base, and a first hand-tightening nut externally threaded onto the first screw;

[0010] The tray is slidably connected to the outside of the guide shaft and the first screw, and the outer walls at both ends of the tray abut against the first hand-tightening nut;

[0011] The lifting assembly and the protective pressure plate are provided. The lifting assembly is fixedly connected to the outer wall of the pallet, and the lifting end of the lifting assembly is connected to the protective pressure plate. The lifting assembly is used for adjusting the height of the protective pressure plate. The lifting assembly includes a positioning plate, which is fixedly connected to the outer wall of the pallet. A second screw is fixedly connected to the bottom of the positioning plate. A lifting block is sleeved on the outside of the second screw, and the lifting block is the lifting end of the lifting assembly. A second hand-tightening nut is threaded onto the outside of the second screw, and the second hand-tightening nut abuts against the upper and lower ends of the lifting block respectively.

[0012] As a preferred technical solution of this application, the cross-section of the support component is U-shaped, and there are two first screws, which are respectively located at both ends of the support base. The outer diameter of the first screw is equal to the outer diameter of the guide shaft, and the distance between adjacent guide shafts is not less than ten centimeters.

[0013] As a preferred technical solution of this application, each of the first screws is threaded with two sets of first hand-tightening nuts on the outside. The two sets of first hand-tightening nuts abut against the two sides of the support plate, and the support plate is provided with through holes corresponding to the guide shaft and the first screw.

[0014] As a preferred technical solution of this application, the lifting assembly further includes a support plate, which is fixedly connected to the side of the pallet away from the positioning plate, and a hexagonal column is integrally formed on the upper part of the support plate. The second screw has a hexagonal groove corresponding to the hexagonal column, and the hexagonal column is inserted into the interior of the hexagonal groove.

[0015] As a preferred technical solution of this application, the lifting assembly is provided in two sets, and the two sets of lifting assemblies are symmetrically distributed at both ends of the pallet. The positioning plate, the support plate and the pallet are connected by two sets of bolt fasteners.

[0016] As a preferred technical solution of this application, a third screw is fixedly connected to the outer wall of the lifting block, and a third hand-tightening nut is threadedly connected to the outer wall of the third screw. A protective pressure plate is squeezed and positioned between the third hand-tightening nut and the lifting block. A through groove adapted to the up and down displacement of the third hand-tightening nut is provided on the positioning plate.

[0017] (III) Beneficial Effects

[0018] The beneficial effects of this application are as follows:

[0019] 1. This utility model, through the setting of the support component, can provide horizontal and stable support for the pallet, and at the same time realize the lateral horizontal displacement of the pallet. This allows the protective channel formed by the pallet and the pressure plate to be adjusted in the left and right horizontal position, so that the distribution position of the protective channel can be effectively adapted to limit and protect needle rollers of different lengths, greatly improving the protective adaptability of the device.

[0020] 2. This utility model uses the cooperation of a threaded rod and a hand-tightened nut to achieve the compression and positioning of the pallet and the lifting block. The position of the pallet and the lifting block can be adjusted by the displacement adjustment of the hand-tightened nuts on both sides. Compared with the push of the threaded rod, its operation is more convenient and will not cause the pallet or the lifting block to jam. After the pallet and the lifting block are moved to the appropriate position, the hand-tightened nuts on both sides are tightened to fix the position. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the present utility model;

[0022] Figure 2 This is a schematic diagram of the distribution structure of the lifting blocks of this utility model;

[0023] Figure 3 This is a schematic diagram of the axial cross-sectional structure of the lifting component of this utility model;

[0024] Figure 4 This is a schematic diagram of the partial explosion structure of this utility model.

[0025] In the picture:

[0026] 1. Support assembly; 11. Support base; 12. Guide shaft; 13. First screw; 14. First hand-tightening nut; 2. Support plate; 3. Lifting assembly; 31. Positioning plate; 32. Support plate; 33. Second screw; 34. Lifting block; 35. Third screw; 36. Third hand-tightening nut; 37. Second hand-tightening nut; 4. Protective pressure plate. Detailed Implementation

[0027] 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.

[0028] like Figure 1-4 As shown, this utility model provides a pressure plate structure, including a support assembly 1, which includes a support base 11, a guide shaft 12 and a first screw 13 fixedly inserted inside the support base 11, and a first hand-tightening nut 14 threadedly connected to the outside of the first screw 13; a support plate 2, which is slidably connected to the outside of the guide shaft 12 and the first screw 13, and the first hand-tightening nut 14 is abutted against the outer walls of both ends of the support plate 2; a lifting assembly 3 and a protective pressure plate 4, which are fixedly connected to the outer wall of the support plate 2, and the lifting end of the lifting assembly 3 is connected to the protective pressure plate 4. The lifting assembly 3 is used for height adjustment of the protective pressure plate 4. The lifting assembly 3 includes a positioning plate 31, which is fixedly connected to the outer wall of the support plate 2. A second screw 33 is fixedly connected to the bottom of the positioning plate 31, and a lifting block 34 is sleeved on the outside of the second screw 33. The lifting block 34 is the lifting mechanism of the lifting assembly 3. At the lower end, the external thread of the second screw 33 is connected to a second hand-tightening nut 37, which abuts against the upper and lower ends of the lifting block 34. By adjusting the position of the first hand-tightening nut 14, the left and right sliding adjustment of the pallet 2 can be achieved. When the pallet 2 moves to the appropriate position, tightening the first hand-tightening nuts 14 on both sides of the pallet 2 can achieve the adjustment and positioning of the pallet 2. Similarly, after adjusting the protective pressure plate 4 to the appropriate position, tightening the two ends of the lifting block 34 with the second hand-tightening nut 37 can achieve the pressing and positioning of the lifting block 34, thereby completing the height adjustment and positioning of the protective pressure plate 4. The horizontal adjustment of the pallet 2 and the height adjustment of the protective pressure plate 4 enable the device to effectively adapt to different specifications of needle rollers for limit protection, ensuring that the needle rollers move within the protective channel formed between the pallet 2 and the protective pressure plate 4.

[0029] Furthermore, the cross-section of the support component 1 is U-shaped. There are two first screws 13, which are located at the two ends of the support base 11. The outer diameter of the first screw 13 is equal to the outer diameter of the guide shaft 12. The distance between adjacent guide shafts 12 is not less than 10 centimeters. Each first screw 13 is threaded with two sets of first hand-tightening nuts 14. The two sets of first hand-tightening nuts 14 abut against the two sides of the support plate 2. The support plate 2 has through holes corresponding to the guide shafts 12 and the first screws 13. The guide shafts 12 are mainly used for auxiliary support and guidance of the support plate 2 to ensure the stability of the horizontal displacement of the support plate 2 and to prevent the support plate 2 from tilting or shifting.

[0030] Furthermore, the lifting assembly 3 also includes a support plate 32, which is fixedly connected to the side of the support plate 2 away from the positioning plate 31. A hexagonal column is integrally formed on the upper part of the support plate 32, and a hexagonal groove is opened at the corresponding hexagonal column of the second screw 33. The hexagonal column is inserted into the interior of the hexagonal groove. By blocking and supporting the second screw 33, the stability of the second screw 33 can be improved. Through the mutual insertion of the hexagonal column and the hexagonal groove, the positioning plate 31, the support plate 32 and the second screw 33 form an integral frame, thereby improving the stability of the second screw 33.

[0031] Furthermore, two sets of lifting components 3 are provided, and the two sets of lifting components 3 are symmetrically distributed at both ends of the support plate 2. Two sets of bolt fasteners pass through the positioning plate 31, the support plate 32 and the support plate 2. The outer wall of the lifting block 34 is fixedly connected to a third screw 35, and the outer wall of the third screw 35 is threadedly connected to a third hand-tightening nut 36. A protective pressure plate 4 is pressed and positioned between the third hand-tightening nut 36 and the lifting block 34. The positioning plate 31 is provided with a through groove to adapt to the vertical displacement of the third hand-tightening nut 36. The protective pressure plate 4 is installed and fixed by the cooperation of the third screw 35 and the third hand-tightening nut 36, so that the protective pressure plate 4 can be adjusted vertically as the lifting block 34 moves up and down, thereby realizing the adaptive adjustment of the distance between the support plates 2.

[0032] Working principle: When processing needle rollers, a protective channel is formed between the support plate 2 and the protective pressure plate 4, allowing the needle rollers to move inside the protective channel to prevent needle rollers from splashing. At the same time, the adjustable structure of the support component 1 and the lifting component 3 allows the protective channel formed by the support plate 2 and the protective pressure plate 4 to be adapted to needle rollers of different specifications for limit protection.

[0033] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A needle roller plate structure characterized by: It includes a support assembly (1), which includes a support base (11). A guide shaft (12) and a first screw (13) are fixedly inserted inside the support base (11), and a first hand-tightening nut (14) is threaded onto the outside of the first screw (13). The tray (2) is slidably connected to the outside of the guide shaft (12) and the first screw (13), and the outer walls of both ends of the tray (2) are abutted by the first hand-tightening nut (14); The lifting assembly (3) and the protective pressure plate (4) are provided. The lifting assembly (3) is fixedly connected to the outer wall of the support plate (2), and the lifting end of the lifting assembly (3) is connected to the protective pressure plate (4). The lifting assembly (3) is used for height adjustment of the protective pressure plate (4). The lifting assembly (3) includes a positioning plate (31), and the positioning plate (31) is fixedly connected to the outer wall of the support plate (2). The bottom of the positioning plate (31) is fixedly connected to a second screw (33). The second screw (33) is sleeved with a lifting block (34), and the lifting block (34) is the lifting end of the lifting assembly (3). The second screw (33) is threaded with a second hand-tightening nut (37), and the second hand-tightening nut (37) abuts against the upper and lower ends of the lifting block (34).

2. The needle plate structure according to claim 1, wherein: The cross-section of the support assembly (1) is U-shaped. There are two first screws (13), and the two first screws (13) are respectively located at both ends of the support base (11). The outer diameter of the first screw (13) is equal to the outer diameter of the guide shaft (12), and the distance between adjacent guide shafts (12) is not less than ten centimeters.

3. The needle roller pressure plate structure according to claim 2, characterized in that: Each of the first screws (13) is threaded with two sets of first hand-tightening nuts (14). The two sets of first hand-tightening nuts (14) abut against the two sides of the support plate (2). The support plate (2) has through holes corresponding to the guide shaft (12) and the first screw (13).

4. The needle roller pressure plate structure according to claim 1, characterized in that: The lifting assembly (3) also includes a support plate (32), which is fixedly connected to the side of the support plate (2) away from the positioning plate (31). A hexagonal column is integrally formed on the upper part of the support plate (32), and a hexagonal groove is provided on the second screw (33) corresponding to the hexagonal column, and the hexagonal column is inserted into the inside of the hexagonal groove.

5. The needle roller pressure plate structure according to claim 4, characterized in that: The lifting assembly (3) is provided in two sets, and the two sets of lifting assemblies (3) are symmetrically distributed at both ends of the pallet (2). The positioning plate (31), the support plate (32) and the pallet (2) are connected by two sets of bolt fasteners.

6. The needle roller pressure plate structure according to claim 5, characterized in that: The outer wall of the lifting block (34) is fixedly connected to a third screw (35), and the outer wall of the third screw (35) is threadedly connected to a third hand-tightening nut (36). A protective pressure plate (4) is squeezed and positioned between the third hand-tightening nut (36) and the lifting block (34). A through groove adapted to the up and down displacement of the third hand-tightening nut (36) is provided on the positioning plate (31).

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