Lower roller assembly

Abstract

The utility model belongs to the technical field of idler wheels, particularly relates to a lower idler wheel assembly, and provides the following scheme aiming at the problem that the existing idler wheel device is easy to damage in the actual use process due to poorer supporting performance in the actual use process: the lower idler wheel assembly comprises an idler wheel frame, an idler wheel is arranged in the idler wheel frame, and the lower idler wheel assembly further comprises a positioning mechanism, the positioning mechanism penetrates through the rolling wheels and is connected with the rolling wheels, the two sides of the positioning mechanism penetrate through the inner walls of the two sides of the rolling wheel frame respectively and extend to the two sides of the rolling wheel frame respectively, and the positioning mechanism is connected with the rolling wheel frame; according to the utility model, after the roller is connected with the roller carrier, the stable supporting and positioning of the roller can be realized, so that the roller does not shake during operation, the supporting performance is good, the damage is not easy to occur, and the practicability is good.

Description

Technical Field

[0001] The utility model relates to the technical field of rollers, in particular to a lower roller assembly. Background Art

[0002] In the process of mechanical engineering, guide devices are often used in the movement of mechanisms. Conventional guide devices are divided into linear guides and arc guides according to the functions they realize, and into sliding friction guides, rolling friction guides, elastic friction guides, etc. according to the friction properties. Among them, the most widely used guide rails use balls as the power transmission interface between the guide rail and the slider, which can perform infinite rolling cycle movement and restrict the slider to the guide rail, so that the load device can reciprocate along the guide rail at high speed and high precision. If the movement accuracy is not high, the movement speed is low, and the frequency of use is not high, sliding friction guides are often used for guidance, and conventional roller guide devices can also be used for guidance;

[0003] The current roller device has poor supporting performance during actual use, which leads to the problem of easy damage during actual use. Therefore, we propose a lower roller assembly to solve the above-mentioned problem. Utility Model Content

[0004] The purpose of the utility model is to solve the problem that the current roller device in the prior art has poor supporting performance during actual use, resulting in easy damage during actual use, and thus proposes a lower roller assembly.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] The lower roller assembly includes a roller frame, in which a roller is arranged. The lower roller assembly also includes:

[0007] A positioning mechanism, the positioning mechanism passes through the roller and is connected to the roller, two sides of the positioning mechanism respectively pass through the inner walls of the roller frame on both sides and extend to the two sides of the roller frame respectively, and the positioning mechanism is connected to the roller frame;

[0008] A connecting mechanism is installed on the top of the roller frame.

[0009] In a possible design, the positioning mechanism includes a supporting sleeve that passes through the roller and fits tightly against the inner wall of the roller, a bayonet is opened on one side of the supporting sleeve, a sealing plate is sleeved on the supporting sleeve, a baffle is fixedly installed on the sealing plate, the baffle passes through the bayonet and is clamped with the inner wall of the bayonet, a threaded component is installed on the baffle, the threaded component passes through the supporting sleeve and contacts with the inner wall of the supporting sleeve, and two ends of the threaded component respectively extend to both sides of the roller frame and are connected to the roller frame.

[0010] In a possible design, the threaded assembly includes a threaded tube fixedly mounted on one side of the baffle, one end of the threaded tube extends into the supporting sleeve, a double-segment screw is threadedly connected to the threaded tube, one end of the double-segment screw extends to the outside of the roller frame, a pressing member is connected to the double-segment screw, and the pressing member is used to press and limit the roller laterally;

[0011] A plurality of support rings are arranged on the threaded tube at equal intervals, and the outer walls of the support rings are in contact with the inner wall of the support sleeve.

[0012] In one possible design, the pressing component includes a card cover that is rotatably mounted on a double-stage screw, a retaining ring is fixedly mounted on one side of the card cover, an annular protrusion is provided on one side of the retaining ring, annular grooves are provided on both sides of the roller, and one side of the annular protrusion extends into the corresponding annular groove and is slidably connected to the inner wall of the annular groove.

[0013] In a possible design, the fixing sleeve on the support sleeve is provided with a mounting ring, a limiting ring is provided on one side of the mounting ring, and one side of the limiting ring extends into the corresponding annular groove and is slidably connected to the inner wall of the annular groove.

[0014] In a possible design, a plurality of elastic clips are fixedly installed at equal intervals on one side of the baffle, a positioning groove is opened at the other end of the double-stage screw, a clamping ring is installed in the positioning groove, one end of the plurality of elastic clips passes through the clamping ring and extends into the positioning groove, and the elastic clips are movably clamped to the inner wall of the clamping ring.

[0015] In a possible design, the threaded assembly also includes a stud fixedly mounted on the other side of the baffle, one end of the stud passes through the inner wall on the other side of the roller frame and extends to the outside of the roller frame, and anti-loosening nuts are threadedly connected on the stud and the double-stage screw, and the two anti-loosening nuts are respectively clamped on both sides of the roller frame.

[0016] In one possible design, the connecting mechanism includes a support tube fixedly mounted on the top of the roller frame, a support rod slidably connected inside the support tube, the top end of the support rod extends to the top of the support tube and a mounting plate is fixedly mounted thereon, a compression spring located above the support tube is sleeved on the support rod, and the top and bottom ends of the compression spring are fixedly connected to the bottom of the mounting plate and the top end of the support tube, respectively.

[0017] In the present application, the roller is firstly mounted on the support sleeve, and then the threaded tube can be inserted into the support sleeve. At this time, a plurality of support rings can be used to limit the support sleeve, and then the double-stage screw can be inserted into the threaded tube, and then the double-stage screw and the threaded tube are twisted to be threadedly connected. At this time, when the double-stage screw moves into the threaded tube, the retaining ring can be used to press the roller. At this time, when the annular protrusion and the limiting ring are slidably matched with the corresponding annular groove, the roller can be laterally limited, and when the double-stage screw moves, the elastic The buckle is moved into the positioning groove and clamped with the clamping ring, so that the double-stage screw can be laterally limited to prevent loosening. Then the roller frame can be set on the stud and the double-stage screw, and the two anti-loosening nuts are rotated so that the two anti-loosening nuts clamp the roller frame, so as to achieve a stable connection with the roller frame, thereby achieving the installation of the roller in the roller frame. After that, after the mounting plate is connected to the supported object, the compression spring can be used to elastically support the mounting plate, so that the supported object can be buffered and protected when it moves.

[0018] Beneficial effects:

[0019] In the utility model, the lower roller assembly can be rotatably supported by the supporting sleeve after the roller is sleeved on the supporting sleeve through the positioning mechanism, and the threaded assembly can be installed on the supporting sleeve after passing through the supporting sleeve and connected to the roller frame, so that the roller can be installed;

[0020] In the utility model, the lower roller assembly can be connected to the mounting plate and the supported object through the connecting mechanism, and the compression spring can be used to elastically support the mounting plate, so that the supported object can be buffered and protected when moving;

[0021] After the roller is connected to the roller frame, the utility model can realize stable support and positioning of the roller, so that the roller will not shake during operation, so it has good support performance and will not be easily damaged, so it has good practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A three-dimensional schematic diagram of the overall structure of the lower roller assembly proposed in the utility model;

[0023] Figure 2 A three-dimensional schematic diagram of the roller structure of the lower roller assembly proposed in the utility model;

[0024] Figure 3 This is a three-dimensional schematic diagram of the roller cross-sectional structure of the lower roller assembly proposed by the utility model.

[0025] In the figure: 1. roller frame; 2. roller; 3. support sleeve; 4. sealing plate; 5. baffle; 6. threaded tube; 7. support ring; 8. double-stage screw; 9. positioning groove; 10. retaining ring; 11. elastic buckle; 12. mounting ring; 13. annular groove; 14. limiting ring; 15. cover; 16. retaining ring; 17. anti-loosening nut; 18. stud; 19. support tube; 20. support rod; 21. mounting plate; 22. compression spring. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0027] Example 1

[0028] Reference Figure 1-3 A roller assembly includes a roller frame 1, and a roller 2 is arranged in the roller frame 1. The roller 2 is the core part of the assembly and is used to support and guide the movement of an object.

[0029] In order to realize the positioning and installation of the roller 2, the present invention designs a positioning mechanism. The positioning mechanism includes a support sleeve 3 that penetrates the roller 2 and is tightly fitted with the inner wall of the roller 2. A bayonet is provided on one side of the support sleeve 3 to facilitate installation and disassembly. A sealing plate 4 is sleeved on the support sleeve 3, and a baffle 5 is fixedly installed on the sealing plate 4. The baffle 5 penetrates the bayonet and is clamped with the inner wall of the bayonet, thereby realizing the fixation of the support sleeve 3.

[0030] In order to further fix the roller 2 and prevent it from moving laterally, the present invention installs a threaded assembly on the baffle 5. The threaded assembly includes a threaded tube 6 fixedly installed on one side of the baffle 5, and a double-segment screw 8 is connected to the inner thread of the threaded tube 6. One end of the double-segment screw 8 extends to the outside of the roller frame 1, which is convenient for operation. When the double-segment screw 8 is rotated to be inserted into the threaded tube 6 and threadedly connected to the threaded tube 6, the other end of the double-segment screw 8 will be connected to the roller frame 1, thereby achieving the fixation of the roller 2.

[0031] In order to prevent the threaded tube 6 from shaking in the support sleeve 3, the present invention arranges a plurality of support rings 7 at equal intervals on the threaded tube 6, and the outer wall of the support ring 7 contacts the inner wall of the support sleeve 3 to provide stable support.

[0032] In addition, in order to further enhance the stability of the roller 2, the present invention designs a pressing member. The pressing member includes a card cover 15 that is rotatably sleeved on the double-stage screw 8, and a retaining ring 16 is fixedly installed on one side of the card cover 15. An annular protrusion is provided on one side of the retaining ring 16, which cooperates with the annular grooves 13 provided on both sides of the roller 2 to achieve lateral positioning of the roller 2.

[0033] At the same time, in order to further improve the stability of the roller 2, the present invention also fixedly sleeves a mounting ring 12 on the support sleeve 3, and a limiting ring 14 is provided on one side of the mounting ring 12. One side of the limiting ring 14 extends into the corresponding annular groove 13, and cooperates with the annular protrusion to limit the roller 2.

[0034] In order to prevent the double-stage screw 8 from loosening in the threaded tube 6, the present invention has multiple elastic buckles 11 fixedly installed at equal intervals on one side of the baffle 5. A positioning groove 9 is provided at the other end of the double-stage screw 8, and a clamping ring 10 is installed in the positioning groove 9. When the double-stage screw 8 moves into the threaded tube 6, the elastic buckle 11 will move into the positioning groove 9 and clamp the clamping ring 10 to achieve lateral positioning of the double-stage screw 8.

[0035] In order to facilitate the connection with the roller frame 1, the present invention further adds a stud 18 to the threaded assembly. The stud 18 is fixedly mounted on the other side of the baffle 5, and one end thereof penetrates the inner wall of the other side of the roller frame 1 and extends to the outside of the roller frame 1. The stud 18 and the double-stage screw 8 are both threadedly connected with a locking nut 17, and the locking nut 17 is rotated to clamp the locking nut 17 with the roller frame 1, so that the roller 2 is stably installed in the roller frame 1.

[0036] In addition, in order to facilitate connection with external equipment or structures, the present invention also designs a connection mechanism. The connection mechanism includes a support tube 19 fixedly mounted on the top of the roller frame 1, and a support rod 20 is slidably connected in the support tube 19. The top end of the support rod 20 extends to the top of the support tube 19 and is fixedly mounted with a mounting plate 21. A compression spring 22 located above the support tube 19 is sleeved on the support rod 20, and the top and bottom ends of the compression spring 22 are fixedly connected to the bottom of the mounting plate 21 and the top end of the support tube 19, respectively. This design enables the mounting plate 21 to obtain elastic support from the compression spring 22 after the supported object is connected, thereby providing buffer protection when the supported object moves.

[0037] The present application can be used in the field of roller technology, and can also be used in other fields applicable to the present application.

[0038] Example 2

[0039] refer to Figure 1, improved on the basis of embodiment 1: a lower roller assembly, which is applied to the field of roller technology, and in addition, a connecting mechanism is designed to facilitate connection with external equipment or structures. The connecting mechanism includes a support tube 19 fixedly mounted on the top of the roller frame 1, and a support rod 20 is slidably connected in the support tube 19. The top end of the support rod 20 extends to the top of the support tube 19 and a mounting plate 21 is fixedly mounted. A compression spring 22 located above the support tube 19 is sleeved on the support rod 20, and the top and bottom ends of the compression spring 22 are fixedly connected to the bottom of the mounting plate 21 and the top of the support tube 19, respectively. This design enables the mounting plate 21 to obtain elastic support from the compression spring 22 after the supported object is connected, thereby providing buffer protection when the supported object moves.

[0040] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A lower roller assembly, comprising a roller frame (1), wherein a roller (2) is arranged in the roller frame (1), characterized in that: The lower roller assembly also includes: A positioning mechanism, the positioning mechanism passes through the roller (2) and is connected to the roller (2), two sides of the positioning mechanism respectively pass through the inner walls of the roller frame (1) on both sides and extend to the two sides of the roller frame (1) respectively, and the positioning mechanism is connected to the roller frame (1); A connecting mechanism is installed on the top of the roller frame (1).

2. The lower roller assembly according to claim 1, characterized in that: The positioning mechanism comprises a support sleeve (3) that passes through the roller (2) and is tightly fitted with the inner wall of the roller (2); a bayonet is provided on one side of the support sleeve (3); a sealing plate (4) is sleeved on the support sleeve (3); a baffle (5) is fixedly mounted on the sealing plate (4); the baffle (5) passes through the bayonet and is clamped with the inner wall of the bayonet; a threaded component is mounted on the baffle (5); the threaded component passes through the support sleeve (3) and is in contact with the inner wall of the support sleeve (3); two ends of the threaded component respectively extend to two sides of the roller frame (1) and are both connected to the roller frame (1).

3. The lower roller assembly according to claim 2, characterized in that: The threaded assembly comprises a threaded tube (6) fixedly mounted on one side of the baffle (5), one end of the threaded tube (6) extending into the support sleeve (3), a double-segment screw (8) being connected to the inner thread of the threaded tube (6), one end of the double-segment screw (8) extending to the outside of the roller frame (1), a pressing member being connected to the double-segment screw (8), and the pressing member being used to perform lateral pressing and limiting on the roller (2); A plurality of support rings (7) are arranged at equal intervals on the threaded tube (6), and the outer walls of the support rings (7) are in contact with the inner wall of the support sleeve (3).

4. The lower roller assembly according to claim 3, characterized in that: The pressing member comprises a card cover (15) rotatably sleeved on the double-stage screw (8), a retaining ring (16) is fixedly mounted on one side of the card cover (15), an annular protrusion is arranged on one side of the retaining ring (16), an annular groove (13) is arranged on both sides of the roller (2), one side of the annular protrusion extends into the corresponding annular groove (13) and is slidably connected to the inner wall of the annular groove (13).

5. The lower roller assembly according to claim 4, characterized in that: The support sleeve (3) is fixedly sleeved with a mounting ring (12), one side of the mounting ring (12) is provided with a limiting ring (14), one side of the limiting ring (14) extends into the corresponding annular groove (13) and is slidably connected to the inner wall of the annular groove (13).

6. The lower roller assembly according to claim 3, characterized in that: A plurality of elastic buckles (11) are fixedly mounted at equal intervals on one side of the baffle (5); a positioning groove (9) is provided at the other end of the double-stage screw (8); a clamping ring (10) is mounted in the positioning groove (9); one end of the plurality of elastic buckles (11) passes through the clamping ring (10) and extends into the positioning groove (9); and the elastic buckles (11) are movably clamped to the inner wall of the clamping ring (10).

7. The lower roller assembly according to claim 3, characterized in that: The threaded assembly further comprises a stud (18) fixedly mounted on the other side of the baffle (5), one end of the stud (18) passing through the inner wall of the other side of the roller frame (1) and extending to the outside of the roller frame (1), and a locking nut (17) is threadedly connected on the stud (18) and the double-stage screw rod (8), and the two locking nuts (17) are respectively clamped on the two sides of the roller frame (1).

8. The lower roller assembly according to claim 1, characterized in that: The connection mechanism comprises a support tube (19) fixedly mounted on the top of the roller frame (1), a support rod (20) being slidably connected inside the support tube (19), the top end of the support rod (20) extending to the top of the support tube (19) and fixedly mounted with a mounting plate (21), a compression spring (22) being sleeved on the support rod (20) and being located above the support tube (19), the top end and the bottom end of the compression spring (22) being fixedly connected to the bottom of the mounting plate (21) and the top end of the support tube (19) respectively.

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