Friction roller one-way retaining mechanism

Abstract

The utility model relates to a one-way retaining mechanism for a friction roller. The one-way retaining mechanism comprises a rotating shaft; the fixing shell is arranged outside the rotating shaft, the retaining structure is arranged inside the fixing shell and comprises a connecting shell, a middle disc, a fixing shaft, a retaining plate and a torsional spring, and the connecting shell is arranged outside the rotating shaft through a screw; the middle disc is arranged between the connecting shells; and the retaining plate is arranged between the connecting shells through a fixing shaft, is connected with the middle disc through a torsional spring, and is in contact with the inner wall of the fixing shell. Through the arrangement of the fixing shaft, the retaining plate, the torsion spring and the fixing shell, the retaining effect is achieved, when a vehicle body reversely slides down along a slope body, the friction wheel drives the connecting shell and the retaining plate to reversely move, at the moment, the longer end of the retaining plate is firstly in contact with the inner wall of the fixing shell and then is clamped, and the vehicle body is prevented from falling off. The effect of hindering rotation of the retaining structure is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical parts conveying and transferring equipment, in particular to a friction roller one-way anti-retraction mechanism. Background Art

[0002] Mechanical parts are produced in factories, and the products need to be transferred and transported to warehouses or processing sites for the next process. In this process, transfer vehicles are usually used for transfer. Rail-mounted translation vehicles are one type of transfer vehicles. The transfer vehicle cooperates with the track to enable the transfer vehicle to move along the track.

[0003] The rail-type trolley moves by the cooperation between the friction roller and the rail. The friction wheel is usually moved by the driving force. When the driving force stops or disappears, the rail-type trolley loses the driving force. If the rail-type trolley is in an ascending or sloped position at this time, it will cause the rail-type trolley to slide, posing a safety hazard. Therefore, a friction roller one-way stop mechanism is proposed to solve the above-mentioned problem. Utility Model Content

[0004] Based on the above description, the utility model provides a friction roller one-way anti-retraction mechanism to solve the problem that the rail translation vehicle is prone to slide backward after losing driving force in a sloped place.

[0005] The utility model provides a technical solution to the above-mentioned technical problem as follows: a friction roller one-way anti-recoil mechanism, comprising: a rotating shaft and a fixed shell, the fixed shell is arranged on the outside of the rotating shaft, the anti-recoil structure is arranged on the inside of the fixed shell, and comprises a connecting shell, an intermediate disk, a fixed shaft, an anti-recoil plate and a torsion spring, the connecting shell is arranged on the outside of the rotating shaft by screws, the intermediate disk is arranged between the connecting shells, the anti-recoil plate is arranged between the connecting shells by a fixed shaft, and is connected to the intermediate disk by a torsion spring, and contacts with the inner wall of the fixed shell.

[0006] On the basis of the above technical solution, the present invention can also be improved as follows.

[0007] Furthermore, a vehicle body is arranged outside the rotating shaft, and friction wheels are arranged at both ends of the rotating shaft, and the friction wheels are in contact with the upper surface of the guide rail.

[0008] Furthermore, the connecting shell includes a mounting plate, and a connecting sleeve is provided on the opposite side of the mounting plate, and the connecting sleeve is connected to the rotating shaft through a screw.

[0009] Furthermore, movable grooves are provided on opposite sides of the installation plate, and prismatic holes are provided on the inner walls of the movable grooves.

[0010] Furthermore, the intermediate disk includes a disk body, and the surface of the disk body is provided with an opening, a threaded hole and a through hole, the opening and the threaded hole are both arranged on the outer ring of the disk body and are distributed alternately with each other, and the through hole is arranged at the center of the disk body.

[0011] Furthermore, the fixed shaft comprises a cylindrical shaft, both ends of the cylindrical shaft are provided with prisms, the prisms extend to the inside of the prism hole, and a stop plate is provided outside the cylindrical shaft.

[0012] Furthermore, the backstop plate is arranged inside the opening, and the side of the backstop plate that contacts the inner wall of the fixed shell is an arc-shaped surface, the distance between the two ends of the arc-shaped surface and the fixed axis is greater than the distance between the fixed axis and the inner wall of the fixed shell, and the distance between the two ends of the arc-shaped surface and the fixed axis is not equal.

[0013] Furthermore, the fixed shell includes a main shell, and opposite sides of the main shell are provided with hollow grooves, and the anti-retraction mechanism is arranged inside the hollow grooves.

[0014] Furthermore, a limiting column and a limiting hole are respectively provided on opposite sides of the main shell, the limiting column extends to the inside of the limiting hole, and the main shell is set on the lower surface of the vehicle body by screws.

[0015] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0016] 1. The utility model is provided with components such as a rotating shaft, a friction wheel and a stop structure. Through the cooperation between the friction wheel and the rotating shaft, when the friction wheel moves along the guide rail, the stop structure can be driven to move together through the rotating shaft. When the vehicle body moves forward, the stop structure can rotate normally, thereby ensuring the normal movement of the vehicle body.

[0017] 2. The anti-recognition effect is achieved by setting the fixed shaft, anti-recognition plate, torsion spring and fixed shell. When the vehicle body slides down the slope in the opposite direction, the friction wheel rotates in the opposite direction. At this time, the rotating shaft drives the connecting shell and the anti-recognition plate to move in the opposite direction. At this time, the longer end of the anti-recognition plate first contacts the inner wall of the fixed shell and then gets stuck, thereby preventing the anti-recognition structure from rotating, thereby preventing the vehicle body from sliding backward along the slope. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A structural schematic diagram of a friction roller one-way anti-retraction mechanism provided in an embodiment of the utility model;

[0019] Figure 2 for Figure 1 Structural cross-sectional view of

[0020] Figure 3 for Figure 2 A structural diagram from another perspective;

[0021] Figure 4 for Figure 2 A partial enlarged schematic diagram of the middle A area;

[0022] Figure 5 This is a schematic diagram of the explosion structure of the stop structure in the embodiment of the utility model;

[0023] Figure 6 This is a schematic diagram of the structure of the connecting shell in the embodiment of the utility model;

[0024] Figure 7 This is a schematic diagram of the structure of the middle plate in the embodiment of the utility model;

[0025] Figure 8 This is a schematic diagram of the structure of the fixed shaft in the embodiment of the utility model;

[0026] Fig. 9 This is a schematic diagram of the structure of the fixed housing in the embodiment of the utility model;

[0027] Fig.10 This is a schematic diagram of the structure of the main housing in an embodiment of the utility model;

[0028] Fig.11 It is a schematic diagram of the motion state of the anti-retraction structure when the vehicle body moves forward in the utility model;

[0029] Fig.12 It is a schematic diagram of the motion state of the anti-retraction structure when the vehicle body slides backward in the utility model.

[0030] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0031] 1. Guide rail; 2. Car body; 3. Rotating shaft; 4. Friction wheel; 5. Connecting shell; 51. Mounting plate; 52. Movable groove; 53. Prismatic hole; 54. Connecting sleeve; 6. Intermediate plate; 61. Plate body; 62. Opening; 63. Threaded hole; 64. Through hole; 7. Fixed shaft; 71. Cylindrical shaft; 72. Prism; 8. Stop plate; 9. Torsion spring; 10. Fixed shell; 101. Main shell; 102. Hollow groove; 103. Limiting column; 104. Limiting hole. DETAILED DESCRIPTION

[0032] In order to facilitate understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0034] When used herein, the singular forms "a", "an", and "said / the" may also include plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "include / comprise" or "have" etc. specify the presence of stated features, wholes, steps, operations, components, parts or combinations thereof, but do not exclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts or combinations thereof.

[0035] See also Figure 1-Figure 3 , Figure 5 as well as Figure 6 , a friction roller one-way stop mechanism, comprising:

[0036] A rotating shaft 3, a vehicle body 2 is disposed outside the rotating shaft 3, friction wheels 4 are disposed at both ends of the rotating shaft 3, and the friction wheels 4 are in contact with the upper surface of the guide rail 1; and

[0037] A fixed housing 10 is arranged outside the rotating shaft 3, and includes a main housing 101. A hollow groove 102 is arranged on opposite sides of the main housing 101. The stop mechanism is arranged inside the hollow groove 102. A limiting column 103 and a limiting hole 104 are arranged on opposite sides of the main housing 101. The limiting column 103 extends to the inside of the limiting hole 104. The main housing 101 is arranged on the lower surface of the vehicle body 2 by screws.

[0038] Based on the above, the main shells 101 are mutually limited by the limiting columns 103 and the limiting holes 104, and are connected to the vehicle body 2 by screws. At this time, the hollow groove 102 provides a movable space for the anti-retraction structure.

[0039] like Figure 4-Figure 6 As shown, a connecting shell 5 is arranged on the outside of the rotating shaft 3 by screws, and the connecting shell 5 includes a mounting plate 51, and a connecting sleeve 54 is arranged on the opposite side of the mounting plate 51, and the connecting sleeve 54 is connected to the rotating shaft 3 by screws, and a movable groove 52 is arranged on the opposite side of the mounting plate 51, and a prismatic hole 53 is arranged on the inner wall of the movable groove 52;

[0040] Based on the above, the connecting shell 5 is connected to the intermediate disk 6 by screws. At this time, the prismatic hole 53 plays the role of fixing the fixed shaft 7, and enables the intermediate disk 6 to be connected to the rotating shaft 3 through the connecting shell 5. The setting of the movable groove 52 enables the torsion spring 9 to be installed and used normally, and the connecting sleeve 54 plays the role of connecting the rotating shaft 3.

[0041] like Figure 4 , Figure 5 as well as Figure 7 As shown, the intermediate disk 6 is arranged between the connecting shells 5, and the intermediate disk 6 includes a disk body 61, and the surface of the disk body 61 is provided with an opening 62, a threaded hole 63 and a through hole 64, the opening 62 and the threaded hole 63 are both arranged on the outer circle of the disk body 61 and are staggered with each other, and the through hole 64 is arranged at the center of the disk body 61;

[0042] Based on the above, the threaded hole 63 cooperates with the screw to connect the intermediate disk 6 and the connecting shell 5. The setting of the opening 62 allows the stop plate 8 to have enough space to rotate around the fixed shaft 7, and the setting of the through hole 64 allows the rotating shaft 3 to pass through the intermediate disk 6.

[0043] like Figure 4 , Figure 5 as well as Figure 8 As shown, the backstop plate 8 is disposed between the connecting shells 5 through the fixed shaft 7, and is connected to the intermediate disk 6 through the torsion spring 9, and is in contact with the inner wall of the fixed outer shell 10;

[0044] The fixed shaft 7 includes a cylindrical shaft 71, both ends of the cylindrical shaft 71 are provided with prisms 72, the prisms 72 extend to the inside of the prism hole 53, and the outside of the cylindrical shaft 71 is provided with a stop plate 8;

[0045] The backstop plate 8 is arranged inside the opening 62, and the side of the backstop plate 8 that contacts the inner wall of the fixed housing 10 is an arc-shaped surface, and the distance between the two ends of the arc-shaped surface and the fixed shaft 7 is greater than the distance between the fixed shaft 7 and the inner wall of the fixed housing 10, and the distance between the two ends of the arc-shaped surface and the fixed shaft 7 is not equal;

[0046] Based on the above, the fixed shaft 7 is fixed between the connecting shells 5, and the backstop plate 8 can rotate with the fixed shaft 7 as the center. When the backstop plate 8 rotates toward the shorter side between the arc surface and the fixed shaft 7 (i.e. Fig.11 In the direction of BC), the backstop plate 8 contacts the inner surface of the fixed housing 10 during the rotation process. At this time, the backstop plate 8 rotates with the fixed shaft 7 as the center ( Fig.11The movement direction of the stop plate 10 is the opposite direction of BC), and the torsion spring 9 is compressed to generate elastic force. In this process, the stop structure moves with the rotating shaft 3 and does not produce a stop effect. That is, this direction is the forward direction of the vehicle body 2. When the stop plate 8 rotates toward the longer side between the arc surface and the fixed shaft 7 (that is, Fig.12 In the direction of CB in the middle), under the action of friction force, the anti-recognition plate 8 rotates with the fixed axis 7 as the center, but due to the lack of movement margin between the anti-recognition plate 8 and the fixed shell 10 at this time, the anti-recognition plate 8 cannot rotate normally. In this process, the anti-recognition structure plays a role of anti-recognition, preventing the vehicle body 2 from sliding backward along the slope.

[0047] In actual use of this embodiment, the connection shell 5, the intermediate disk 6, the fixed shaft 7, the stop plate 8 and the torsion spring 9 are connected to each other by screws, and the stop plate is connected to the rotating shaft 3 by screws. At this time, the stop plate is arranged inside the fixed shell 10.

[0048] When the rotating shaft 3 rotates, the stop structure is driven to rotate together. At this time, the fixed housing 10 and the vehicle body 2 are connected to each other in a relatively fixed state. When the stop structure rotates, it generates relative motion with the fixed housing 10.

[0049] like Fig.11 As shown, when the vehicle body 2 moves forward, the rotating shaft 3 drives the middle plate 6 to rotate in the direction BC, and the backstop plate 8 moves with the middle plate 6. During the movement, friction is generated between the backstop plate 8 and the fixed housing 10. Under the action of the friction, the backstop plate 8 rotates with the fixed shaft 7 as the center of the circle, and the direction of rotation is opposite to BC. After the backstop plate 8 rotates, the torsion spring 9 is compressed. When the movement stops, the backstop plate 8 is reset under the action of the elastic force of the torsion spring 9;

[0050] like Fig.12 As shown, when the vehicle body 2 loses the driving force, the rotating shaft 3 drives the middle plate 6 to rotate in the direction of CB when sliding backward on the slope. At this time, the middle plate 6 drives the anti-recoil plate 8 to move together. At this time, friction is generated between the anti-recoil plate 8 and the fixed shell 10. Under the action of the friction, the anti-recoil plate 8 wants to rotate with the fixed shaft 7 as the center. Due to the lack of movement margin, the anti-recoil plate 8 cannot rotate with the fixed shaft 7 as the center, so that the middle plate 6 stops moving under the action of the friction between the anti-recoil plate 8 and the fixed shell 10, that is, the anti-recoil effect is achieved;

[0051] The friction roller one-way anti-return mechanism, by providing an anti-return structure, can play an obstructive role when the vehicle body 2 loses driving force and slides backward on the slope, thereby preventing the vehicle body 2 from sliding backward on the slope.

[0052] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A friction roller one-way stop mechanism, characterized in that: include: A rotating shaft (3); as well as A fixed housing (10) disposed outside the rotating shaft (3); The anti-retraction structure is arranged inside the fixed housing (10) and comprises a connecting shell (5), an intermediate disk (6), a fixed shaft (7), an anti-retraction plate (8) and a torsion spring (9), wherein: A connecting shell (5) which is arranged on the outside of the rotating shaft (3) by means of screws; An intermediate plate (6) disposed between the connecting shells (5); The backstop plate (8) is arranged between the connecting shells (5) via a fixed shaft (7), is connected to the intermediate disk (6) via a torsion spring (9), and is in contact with the inner wall of the fixed outer shell (10).

2. The friction roller one-way anti-retraction mechanism according to claim 1, characterized in that: A vehicle body (2) is arranged outside the rotating shaft (3), and friction wheels (4) are arranged at both ends of the rotating shaft (3), and the friction wheels (4) are in contact with the upper surface of the guide rail (1).

3. The friction roller one-way anti-retraction mechanism according to claim 1, characterized in that: The connection shell (5) comprises a mounting plate (51), and a connecting sleeve (54) is provided on the opposite side of the mounting plate (51), and the connecting sleeve (54) is connected to the rotating shaft (3) via a screw.

4. The friction roller one-way anti-retraction mechanism according to claim 3, characterized in that: The mounting plate (51) is provided with a movable groove (52) on one opposite side, and a prism hole (53) is provided on the inner wall of the movable groove (52).

5. The friction roller one-way anti-retraction mechanism according to claim 1, characterized in that: The intermediate disk (6) comprises a disk body (61), the surface of which is provided with an opening (62), a threaded hole (63) and a through hole (64), the opening (62) and the threaded hole (63) being both arranged on the outer ring of the disk body (61) and being distributed in an interlaced manner, and the through hole (64) being arranged at the center of the disk body (61).

6. The friction roller one-way anti-retraction mechanism according to claim 4, characterized in that: The fixed shaft (7) comprises a cylindrical shaft (71), both ends of the cylindrical shaft (71) are provided with prisms (72), the prisms (72) extend into the interior of the prism hole (53), and a stop plate (8) is provided outside the cylindrical shaft (71).

7. The friction roller one-way anti-retraction mechanism according to claim 5, characterized in that: The backstop plate (8) is arranged inside the opening (62), and the side of the backstop plate (8) that contacts the inner wall of the fixed shell (10) is an arc-shaped surface, and the distance between the two ends of the arc-shaped surface and the fixed shaft (7) is greater than the distance between the fixed shaft (7) and the inner wall of the fixed shell (10), and the distance between the two ends of the arc-shaped surface and the fixed shaft (7) is not equal.

8. The friction roller one-way anti-retraction mechanism according to claim 2, characterized in that: The fixed housing (10) comprises a main housing (101), and opposite sides of the main housing (101) are each provided with a hollow groove (102), and the stop mechanism is arranged inside the hollow groove (102).

9. The friction roller one-way anti-retraction mechanism according to claim 8, characterized in that: A limiting column (103) and a limiting hole (104) are respectively arranged on opposite sides of the main housing (101); the limiting column (103) extends into the interior of the limiting hole (104); and the main housing (101) is arranged on the lower surface of the vehicle body (2) by means of screws.

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