Carrier roller bearing load durability testing device

Abstract

The utility model provides a device for testing the load durability of a carrier roller bearing, and belongs to the technical field of machinery. A carrier roller bearing load durability testing device comprises a base which is provided with a plurality of vertical plates which are symmetrically distributed, and the vertical plates are provided with insertion holes; the mounting frame is arranged on the base, the mounting frame is provided with two connecting plates, at least one mounting hole corresponding to each other is formed in each of the two connecting plates, and the mounting holes are used for mounting an outer ring of the carrier roller bearing; the rotating shaft penetrates through the insertion holes of the two opposite vertical plates; the rotating drum is arranged on the rotating shaft in a sleeving mode, a driven gear is installed on the rotating drum, and the two ends of the rotating drum are used for being connected with inner rings of carrier roller bearings; and the driving assembly is in transmission connection with the driven gear and is used for rotating the rotating shaft.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical technology, and in particular to a test device for the load durability of idler roller bearings. Background Technology

[0002] Idler roller bearings generally consist of basic components such as an inner ring, an outer ring, rolling elements, and a cage. The inner ring is connected to the idler roller, the outer ring is mounted on the bearing housing, and the rolling elements roll between the inner and outer rings, thereby realizing the rotational motion of the idler roller.

[0003] Idler roller bearings can withstand large radial loads and are subjected to various forces when conveying materials on belt idlers. To ensure that idler roller bearings can be used normally for a long time under high load conditions, load testing is required.

[0004] However, there is currently a lack of high-performance long-term load durability testing devices on the market, and ordinary load durability testing devices on the market cannot meet the company's needs. Therefore, a load durability testing device for idler roller bearings is proposed to meet the company's testing requirements. Summary of the Invention

[0005] The purpose of this invention is to address the aforementioned problems in existing technologies by proposing a roller bearing load durability testing device that features long-term continuous testing and adjustable load.

[0006] A device for testing the load durability of idler roller bearings, comprising:

[0007] A base having several symmetrically distributed vertical plates, each vertical plate having an insertion hole.

[0008] The mounting bracket is mounted on the base and has two connecting plates. Each connecting plate has at least one corresponding mounting hole for mounting the outer ring of the idler roller bearing.

[0009] A rotating shaft, which passes through the insertion holes of two opposing vertical plates;

[0010] A rotating drum is sleeved on a rotating shaft, and a driven gear is installed on the rotating drum. Both ends of the rotating drum are used to connect to the inner ring of the idler roller bearing.

[0011] A drive assembly, which is connected to a driven gear transmission for rotating a shaft.

[0012] In the above-mentioned roller bearing load durability testing device, the base is provided with a through hole, and the mounting bracket extends into the through hole.

[0013] In the above-mentioned roller bearing load durability testing device, a pressure sensor is installed on the mounting frame, several columns are fixed on the base, and a pressure plate is provided on the column. The pressure plate is located above the pressure sensor, and a connecting block is provided between the pressure sensor and the pressure plate. The pressure plate is threadedly connected to the column by an adjusting bolt, wherein the adjusting bolt is used to adjust the pressure plate to move towards the pressure sensor, so as to increase the pressure on the pressure sensor.

[0014] In the above-mentioned roller bearing load durability testing device, when there are two rotating drums, the driven gears on the two adjacent rotating drums mesh with each other.

[0015] In the above-mentioned roller bearing load durability testing device, the driven gear is detachably mounted on the rotating drum, and the driven gear is connected to the rotating drum by a key.

[0016] In the above-mentioned roller bearing load durability testing device, the drive assembly includes a drive motor, a drive gear, and a gear set. The drive motor is fixed on the base, the drive gear is fixed on the output shaft of the drive motor, and the drive gear is connected to the driven gear through the gear set.

[0017] In the above-mentioned roller bearing load durability testing device, the lower end of the base is fixed with two support feet.

[0018] Compared with the prior art, this application has the following advantages:

[0019] When it is necessary to simulate different load conditions, the load can be adjusted by applying different pressures to the mounting bracket. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram in this application;

[0021] Figure 2 This is an exploded structural diagram of the present application;

[0022] Figure 3 This is a structural diagram of one possible position of the adjusting bolt in this application;

[0023] Figure 4 This is a cross-sectional view of the location of the rotating cylinder in this application;

[0024] In the picture,

[0025] 100. Idler roller bearing; 101. Inner ring; 102. Outer ring;

[0026] 2. Base; 21. Vertical plate; 22. Insertion hole; 23. Through hole; 24. Column; 25. Pressure plate; 26. Connecting block; 27. Support leg; 28. Adjusting bolt;

[0027] 3. Mounting bracket; 31. Connecting plate; 311. Mounting hole; 32. Pressure sensor;

[0028] 4. Shaft;

[0029] 5. Rotating drum;

[0030] 6. Drive assembly; 61. Drive motor; 62. Drive gear; 63. Gear set; 64. Driven gear. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0032] like Figures 1 to 4 As shown, a load durability testing device for an idler roller bearing 100 includes: a base 2, a mounting frame 3, a rotating shaft 4, a rotating cylinder 5, and a drive assembly 6. The base 2 has several symmetrically distributed vertical plates 21, each with insertion holes 22. The mounting frame 3 is mounted on the base 2 and has two connecting plates 31, each with at least one corresponding mounting hole 311 for mounting the outer ring 102 of the idler roller bearing 100. The rotating shaft 4 passes through the insertion holes 22 of the two opposite vertical plates 21. The rotating cylinder 5 is sleeved on the rotating shaft 4 and has a driven gear 64 mounted on it. Both ends of the rotating cylinder 5 are used to connect to the inner ring 101 of the idler roller bearing 100. The drive assembly 6 is connected to the driven gear 64 for rotating the rotating shaft 4.

[0033] The load durability testing device for the idler roller bearing 100 achieves simulated working condition testing through the coordinated operation of various components: after the drive component 6 is started, it drives the driven gear 64 to rotate, and drives the rotating drum 5 to rotate around the rotating shaft 4. Since the two ends of the rotating drum 5 are connected to the inner ring 101 of the idler roller bearing 100, the inner ring 101 rotates synchronously with the rotating drum 5; while the outer ring 102 of the bearing is fixed on the connecting plate 31 of the mounting frame 3 through the mounting hole 311. When it is necessary to simulate different load conditions, different pressures can be applied to the mounting frame 3 to adjust the load.

[0034] In this application, the mounting bracket 3 and the base 2 are not in direct contact, so all applied external forces can be applied to the idler roller bearing 100.

[0035] When it is necessary to replace the idler roller bearing 100, the shaft 4 can be pulled out, and then the drum 5 can be removed. After that, the idler roller bearing 100 can be taken out from the mounting hole 311 for replacement.

[0036] Specifically, the base 2 has a through hole 23, and the mounting bracket 3 extends into the through hole 23.

[0037] The mounting bracket 3 extends into the through hole 23 without directly contacting the base 2, and serves as a limiting and guiding function. In case of an accident, such as the mounting bracket 3 falling off, it can fall along the through hole 23, providing safety.

[0038] Specifically, a pressure sensor 32 is installed on the mounting bracket 3, and several columns 24 are fixed on the base 2. A pressure plate 25 is provided on the column 24. The pressure plate 25 is located above the pressure sensor 32. A connecting block 26 is provided between the pressure sensor 32 and the pressure plate 25. The pressure plate 25 is threadedly connected to the column 24 by adjusting bolts 28. The adjusting bolts 28 are used to adjust the pressure plate 25 to move towards the pressure sensor 32, so as to increase the pressure on the pressure sensor 32.

[0039] The pressure sensor 32 is directly mounted on the mounting bracket 3 and can collect the pressure value transmitted by the pressure plate 25 in real time. Through the threaded connection between the adjusting bolt 28 and the column 24, the operator can directly use tools to rotate the bolt to drive the pressure plate 25 downwards, without the need for additional complex hydraulic or pneumatic devices, thus directly adjusting the pressure. The adjusting bolt 28 passes through the pressure plate 25 and can slide relative to it. The connecting block 26 can be removed. After the connecting block 26 is inserted between the pressure plate 25 and the pressure sensor 32, a gap is created between the pressure plate 25 and the top of the column 24. Then, the pressure on the pressure plate 25 can be increased by screwing in the adjusting bolt 28. Furthermore, a groove is provided on the pressure plate 25, and the upper end of the column 24 is inserted into the groove. In actual use, a retaining washer needs to be placed between the adjusting bolt 28 and the pressure plate.

[0040] Specifically, when there are two rotating drums 5, the driven gears 64 on the two adjacent rotating drums 5 mesh with each other.

[0041] The two rotating drums 5 are linked by driven gears 64 to form a linkage structure, allowing two sets of idler roller bearings 100 to be installed simultaneously for parallel testing, doubling the testing efficiency compared to a single rotating drum design. This application designs two rotating drums for testing; however, more drums can be added in practice.

[0042] Specifically, the driven gear 64 is detachably mounted on the rotating drum 5, and the driven gear 64 is connected to the rotating drum 5 by a key.

[0043] This design allows the rotating drum 5 to be easily pulled directly from the idler roller bearing 100. After the rotating shaft 4 is pulled out, the entire mounting bracket can be removed, at which point the rotating drum 5 can be pulled out from the idler roller bearing 100, and the driven gear 64 can also be removed.

[0044] Specifically, the drive assembly 6 includes a drive motor 61, a drive gear 62, and a gear set 63. The drive motor 61 is fixed on the base 2, the drive gear 62 is fixed on the output shaft of the drive motor 61, and the drive gear 62 is connected to the driven gear 64 through the gear set 63.

[0045] The drive motor 61 drives the driving gear 62 to rotate, and the driving gear 62 drives the driven gear 64 to rotate through the gear set 63. The gear set 63 in this application includes a large gear and a small gear. The large gear meshes with the driving gear 62, the small gear is coaxially connected with the large gear, and the small gear meshes with the driven gear 64.

[0046] Specifically, the lower end of the base 2 is fixed with two support feet 27.

[0047] It should be noted that all directional indications in the embodiments of the present invention, such as up, down, left, right, front, back, etc., are only used to explain the relative positional relationship and movement of the components in a specific posture, as shown in the attached figure. If the specific posture changes, the directional indication will also change accordingly.

[0048] Furthermore, the use of terms such as "first" and "second" in this invention is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Meanwhile, the word "and / or" throughout the text means including three solutions; for example, "A and / or B" includes solution A, solution B, or a solution that simultaneously satisfies A and B. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0049] All of the above components are general standard parts or components known to those skilled in the art. Their structure and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0050] The specific embodiments described herein are merely illustrative examples of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from this utility model or exceeding the scope defined by the appended claims.

Claims

1. An idler bearing load endurance test apparatus, characterized by, include: The base (2) has several symmetrically distributed vertical plates (21) on it, and the vertical plates (21) are provided with insertion holes (22). Mounting bracket (3) is mounted on base (2). Mounting bracket (3) has two connecting plates (31). Each of the two connecting plates (31) has at least one corresponding mounting hole (311). The mounting hole (311) is used to mount the outer ring (102) of the idler roller bearing (100). A rotating shaft (4) passes through the insertion holes (22) of two opposing vertical plates (21); Rotary drum (5), which is sleeved on the rotating shaft (4), and a driven gear (64) is installed on the rotating drum (5). The two ends of the rotating drum (5) are used to connect the inner ring (101) of the idler roller bearing (100). The drive assembly (6) is connected to the driven gear (64) for rotating the shaft (4).

2. The idler bearing load endurance test apparatus of claim 1, wherein, The base (2) has a through hole (23), and the mounting bracket (3) extends into the through hole (23).

3. The idler bearing load endurance test apparatus of claim 1, wherein, A pressure sensor (32) is installed on the mounting bracket (3). Several columns (24) are fixed on the base (2). A pressure plate (25) is provided on the column (24). The pressure plate (25) is located above the pressure sensor (32). A connecting block (26) is provided between the pressure sensor (32) and the pressure plate (25). The pressure plate (25) is threadedly connected to the column (24) by an adjusting bolt (28). The adjusting bolt (28) is used to adjust the pressure plate (25) to move toward the pressure sensor (32) to increase the pressure on the pressure sensor (32).

4. The idler bearing load endurance test apparatus of claim 1, wherein, When there are two rotating drums (5), the driven gears (64) on the two adjacent rotating drums (5) mesh with each other.

5. The roller bearing load durability testing device according to claim 1, characterized in that, The driven gear (64) is detachably mounted on the rotating drum (5), and the driven gear (64) is connected to the rotating drum (5) by a key.

6. The roller bearing load durability testing device according to claim 1, characterized in that, The drive assembly (6) includes a drive motor (61), a drive gear (62), and a gear set (63). The drive motor (61) is fixed on the base (2), and the drive gear (62) is fixed on the output shaft of the drive motor (61). The drive gear (62) is connected to the driven gear (64) through the gear set (63).

7. The idler bearing load endurance test apparatus of claim 1, wherein, The lower end of the base (2) is fixed with two support feet (27).

Images