Space-saving rotary guide wheel set

Abstract

The utility model relates to the field of material conveying systems and guide mechanisms, in particular to a space-saving rotary guide wheel set which comprises a base, a plurality of rotary shaft fixing seats are vertically installed on the base, and transverse through holes are formed in the front sides of the rotary shaft fixing seats. The rotating shaft penetrates through the through holes to be arranged in the rotating shaft fixing seat, and the rotating shaft is rotationally matched with the through holes; the rotating shaft penetrates through the middle parts of the rolling wheel strips and is fixedly connected with the rolling wheel strips, and a plurality of rolling wheels are arranged on the rolling wheel strips at equal intervals in the axial direction of the rolling wheel strips; the air cylinder mounting seat is vertically arranged on the base, a vertically arranged air cylinder is mounted on the front side of the air cylinder mounting seat, and a piston rod of the air cylinder is arranged upwards; the top of the piston rod is rotationally connected with a hinge pin which is transversely arranged, a transmission block is arranged at the bottom of at least one roller strip, and the transmission block is rotationally connected with the hinge pin; and the transmission blocks at the bottoms of the roller strips are arranged at the front parts of the joints of the roller strips and the rotating shafts, and staggered avoidance is formed between the transmission blocks and the joints of the roller strips and the rotating shafts.

Description

Technical Field

[0001] This utility model relates to the field of material conveying systems and guiding mechanisms, specifically a space-saving rotary guide wheel assembly. Background Technology

[0002] In the field of material handling systems and guiding mechanisms, the spatial optimization design of pivot connection components is a key research direction for improving equipment efficiency. In traditional rod and roller assembly structures, pin assemblies typically employ a two-way symmetrical bearing configuration or a single-sided locking structure. This construction method leads to an increase in axial installation dimensions and is prone to motion interference under combined load conditions. Specifically, existing rod-roller connection devices generally suffer from high structural redundancy and insufficient dynamic adjustment capabilities when achieving radial constraint and axial positioning functions, making it difficult to meet the technical requirements of multi-degree-of-freedom motion coordination within a compact space.

[0003] To address the aforementioned technical bottlenecks, there is an urgent need to develop a space-saving rotary guide wheel assembly to improve the space utilization efficiency and motion adaptability of the guide wheel mechanism. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a space-saving rotary guide wheel assembly to improve the space utilization efficiency and motion adaptability of the guide wheel mechanism.

[0005] To achieve the above objectives, a space-saving rotary guide wheel assembly is designed, including a base, and further comprising: several shaft fixing seats, each vertically mounted on the base, with a transverse through hole on its front side; a rotating shaft passing through the through holes and disposed within the shaft fixing seats, the rotating shaft rotatably engaging with the through holes; several parallel roller strips, each roller strip perpendicularly intersecting the rotating shaft, the rotating shaft passing through the middle of the roller strips and fixedly connected to the roller strips, each roller strip having several rollers evenly spaced along its axial direction; and a cylinder mounting seat, vertically mounted on the base, with a vertically mounted cylinder mounted on its front side. The piston rod of the cylinder is upwardly positioned; the top of the piston rod is rotatably connected to a horizontally positioned hinge pin; at least one roller strip has a transmission block at its bottom, and the transmission block is rotatably connected to the hinge pin; the transmission block at the bottom of the roller strip is positioned at the front of the connection between the roller strip and the rotating shaft, forming an alternating avoidance between the transmission block and the connection between the roller strip and the rotating shaft; the roller strip, the rotating shaft fixing seat, and the cylinder mounting seat avoid each other; the roller strip includes an initial position and a raised position; when the roller strip is in the initial position, it forms a continuous rolling friction horizontal surface; when the roller strip is in the raised position, the axial direction of the roller strip is perpendicular to the base, forming an avoidance structure on the front side of the base.

[0006] Preferably, the present invention further includes: a proximity switch is provided on the base, and a detection rod is provided at the bottom of at least one roller bar, wherein the proximity switch is aligned with the detection rod when the roller bar is in the initial position.

[0007] Preferably, the present invention further includes: a connecting shaft provided on several roller strips, the connecting shaft being disposed on the front side of the rotating shaft and parallel to the rotating shaft, the connecting shaft passing through several roller strips and being fixedly connected to the roller strips, for forming a reinforced frame structure with several roller strips.

[0008] Preferably, the present invention further includes: a roller pin that is transversely inserted on the roller strip, with a roller and a nut respectively provided at both ends of the roller pin, and a washer provided between the roller and the roller strip.

[0009] Compared with the prior art, the advantages of this utility model are:

[0010] This structure has the advantages of strong functionality, high flexibility and good stability. It is suitable for scenarios that require frequent switching of working states and have certain requirements for automation. The position switching of the guide wheel group can be achieved by rotating and lowering the roller strip, which reduces the space occupied by the guide wheel group when it is not working. Attached Figure Description

[0011] Figure 1 This is a top view of the present invention;

[0012] Figure 2 This is a front view of the present invention;

[0013] Figure 3 This is a schematic diagram of the motion trajectory of this utility model from a side view;

[0014] Figure 4 This is a side view schematic diagram of the roller bar lifting of this utility model;

[0015] In the diagram: 1. Cylinder mounting base, 2. Shaft fixing base, 3. Cylinder, 4. Roller bar, 5. Base, 6. Shaft, 7. Connecting shaft, 8. Proximity switch, 9. Roller, 10. Piston rod, 11. Hinge pin, 12. Transmission block, 13. Detector rod. Detailed Implementation

[0016] To make the purpose, principle and structure of this utility model clearer, the following description is provided in conjunction with the accompanying drawings and specific embodiments.

[0017] This invention provides a space-saving rotary guide wheel assembly.

[0018] Example 1:

[0019] like Figure 1As shown, this embodiment provides a space-saving rotary guide wheel assembly, including a base 5, a rotating shaft fixing seat 2, a rotating shaft 6, roller strips 4, a cylinder mounting seat 1, and a cylinder 3. The specific structure is as follows:

[0020] The base 5 is a horizontal mounting platform, and at least two pivot fixing seats 2 are vertically mounted on its top. A transverse through hole is formed on the top side of the pivot fixing seat 2 away from the base 5, and a rotating bushing is installed within the through hole. (See also...) Figure 1 , 2 The direction towards the base 5 is the rear direction, the direction away from the base 5 is the front direction, the direction towards the top of the rotating shaft fixing seat 2 is the upper direction, and the direction towards the bottom of the rotating shaft fixing seat 2 is the lower direction.

[0021] The rotating shaft 6 is horizontally inserted into the through holes of all the rotating shaft fixing seats 2, and is rotatably connected to the rotating shaft fixing seats 2 through the rotating bushing.

[0022] Several roller strips 4 are arranged in parallel and intersect the rotating shaft 6 perpendicularly. The roller strips 4 have a through hole in the middle. The rotating shaft 6 passes through the through hole and is fixedly connected to the roller strips 4 by means of keyway or welding.

[0023] Each roller strip 4 has multiple rollers 9 installed at equal intervals along the axial direction. Specifically, the roller pin is transversely inserted into the mounting hole of the roller strip 4, with a roller 9 at one end and a nut locking the other end. A nylon washer is provided between the roller 9, the roller strip 4, and the roller pin to reduce friction.

[0024] A cylinder mounting seat 1 is vertically provided on one side of the base 5. The cylinder 3 is vertically fixed to the front (or rear) side of the cylinder mounting seat 1 by bolts, and the piston rod 10 of the cylinder 3 extends upward.

[0025] The top of the piston rod 10 is rotatably connected to the transmission block 12 via a hinge pin 11. At least one roller strip 4 has a transmission block 12 fixed to its bottom. The transmission block 12 is located on the front side of the connection between the roller strip 4 and the rotating shaft 6, and the two form an interleaved clearance space to avoid motion interference.

[0026] Adjacent roller strips 4 are fixed together by a transversely inserted connecting shaft 7 to form a frame structure. The connecting shaft 7 is parallel to the rotating shaft 6 and located in front of it, passing through all roller strips 4 and being fixed to each roller strip 4 to enhance the overall rigidity.

[0027] A proximity switch 8 is provided on one side of the base 5, and a detection rod 13 is fixed to the bottom of at least one roller 4. When the roller 4 is in the initial position (horizontal state), the detection rod is aligned with the proximity switch 8, triggering a signal to confirm the position.

[0028] Working principle:

[0029] Initial position: The piston rod 10 of cylinder 3 retracts, driving the roller strip 4 to rotate around the rotating shaft 6 to a horizontal position, and driving the roller strips 4 on both sides to be horizontal synchronously via the connecting shaft 7. At this time, the tops of all rollers 9 form a continuous rolling friction plane to support material transfer.

[0030] Lifting position: The piston rod 10 of cylinder 3 extends, pushing the transmission block 12 upward, causing the roller strip 4 to rotate upward around the rotating shaft 6 to a vertical position. The roller strips 4 on both sides are lifted synchronously, forming a clearance space in front of the base 5. After the proximity switch 8 detects the displacement of the detection rod, it feeds back a lifting signal to ensure the equipment safely avoids the obstacle.

[0031] Preferably, the lifting angle of the roller strip 4 is limited by the stroke of the cylinder 3 and the rotation range of the hinge pin 11, ensuring that the roller strip 4 is perpendicular to the base 5 after being lifted.

[0032] The bottom of the rotating shaft fixing seat 2 and the cylinder mounting seat 1 are welded to the base 5 through reinforcing ribs to improve structural stability.

[0033] This embodiment uses a cylinder to drive the roller strip to rotate around the pivot, achieving rapid switching between horizontal support and vertical avoidance, thus solving the problems of large space occupation and poor flexibility of traditional guide wheel sets; the design of the connecting shaft and proximity switch further improves the synchronization accuracy and the reliability of status detection.

[0034] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and novel concept of this utility model, should be included within the protection scope of this utility model.

Claims

1. A space-saving rotary guide wheel assembly, comprising a base, characterized in that, Also includes: Several rotating shaft fixing seats are vertically mounted on the base, and the front side of the rotating shaft fixing seat is provided with a transverse through hole; A rotating shaft passes through several through holes and is set in a rotating shaft fixing seat, with the rotating shaft rotating in conjunction with the through holes; A plurality of parallel roller strips are arranged, the roller strips intersect the rotating shaft perpendicularly, the rotating shaft passes through the middle of the roller strips and is fixedly connected to the roller strips, and a plurality of rollers are arranged at equal intervals along the roller strip axis; A cylinder mounting base is vertically mounted on a base, and a vertically mounted cylinder is installed on the front side of the cylinder mounting base, with the piston rod of the cylinder pointing upwards; The top of the piston rod is rotatably connected to a horizontally arranged hinge pin, and at least one roller bar has a transmission block at its bottom, the transmission block being rotatably connected to the hinge pin; The transmission block at the bottom of the roller bar is located at the front of the connection between the roller bar and the shaft, forming an alternating avoidance between the transmission block and the connection between the roller bar and the shaft; The roller strip, the rotating shaft fixing seat, and the cylinder mounting seat avoid each other; The roller strip includes an initial position and a raised position. When the roller strip is in the initial position, it forms a continuous rolling friction horizontal surface. When the roller strip is in the raised position, the axial direction of the roller strip is perpendicular to the base, forming a clearance structure on the front side of the base.

2. The space-saving rotary guide wheel assembly as described in claim 1, characterized in that, The base is also provided with a proximity switch, and at least one roller bar has a detection rod at its bottom. When the roller bar is in its initial position, the proximity switch is aligned with the detection rod.

3. The space-saving rotary guide wheel assembly as described in claim 1, characterized in that, A connecting shaft is also provided on several roller strips. The connecting shaft is located on the front side of the rotating shaft and is parallel to the rotating shaft. The connecting shaft passes through several roller strips and is fixedly connected to the roller strips to form a reinforced frame structure with the roller strips.

4. The space-saving rotary guide wheel assembly as described in claim 1, characterized in that, The roller pin is horizontally inserted through the roller strip. A roller and a nut are respectively provided at both ends of the roller pin, and a washer is provided between the roller and the roller strip.

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