Novel wheel type drag chain

Abstract

The utility model belongs to the technical field of drag chain equipment, and particularly relates to a novel wheel type drag chain which is formed by connecting a plurality of drag chain sections in series, each drag chain section comprises a drag chain body and a rolling column arranged on the upper portion of the drag chain, and the rolling columns are rotationally connected to the drag chain bodies. And at least one part of the rolling column is arranged outside the drag chain body. According to the drag chain, the rolling columns are arranged on the drag chain bodies, when the drag chains are overlapped, the drag chain sections make contact and support through the rolling columns, in this way, when the overlapped parts move relatively, the drag chain bodies do not make contact, relative movement between the drag chain bodies can be facilitated through the rolling columns, and the phenomena such as connector pulling-off are prevented.

Description

Technical Field

[0001] The utility model belongs to the technical field of drag chain equipment, and particularly relates to a novel wheel-type drag chain. Background Art

[0002] Drag chains are generally used to pull and protect cables, oil pipes, air pipes, water pipes, and air ducts in machine tools and other machinery. They are widely used in CNC electronic equipment, stone and glass machinery, manipulators, lifting and transportation equipment, automated warehouses, and robotic arms.

[0003] As we all know, the appearance of the drag chain is similar to the tracks of tanks and tractors. It includes a left single chain, a right single chain and a cross bar that positions and connects the left and right single chains. The left single chain and the right single chain are arranged in pairs, and the two have symmetrical structures. The two single chains are composed of several main plates connected end to end. The outer side of the rear part of the front main plate and the inner side of the front part of the rear main plate are overlapped in the inner and outer directions, and the two are connected in rotation in the vertical plane through the hole-shaft cooperation.

[0004] During long-term use, it was found that due to the heavy load, frequent bending and flipping movements during operation, the overlapping parts of the drag chain are prone to pulling off the fixed joints of the drag chain and breaking the drag chain joints, causing downtime and material shortages. Due to the various types of drag chains, this will cause excessively long maintenance time, seriously affecting the normal production of products. Utility Model Content

[0005] The purpose of the utility model is to provide a new type of wheeled drag chain, which is used to solve the problem that the existing drag chain is easy to be pulled off, thus affecting the normal production of products.

[0006] In order to achieve the above technical objectives, the technical solutions adopted by this utility model are as follows:

[0007] A new type of wheeled drag chain, which is composed of multiple drag chain links connected in series. The drag chain links include a drag chain body and a rolling column arranged on the upper part of the drag chain. The rolling column is rotatably connected to the drag chain body, and at least a part of the rolling column is arranged outside the drag chain body.

[0008] In this application, a rolling column is provided on the drag chain body. When the drag chains overlap, the drag chain links are contacted and supported by the rolling column. In this way, when the overlapping parts move relative to each other, the drag chain bodies will not contact each other. The rolling column can facilitate the relative movement between the drag chain bodies and prevent phenomena such as joints being pulled off.

[0009] Furthermore, the number of the rolling columns is two, which are respectively arranged on the upper end surface and the lower end surface of the drag chain body.

[0010] In the present application, rolling columns are provided on the upper and lower parts of the drag chain body to facilitate the relative sliding between the three overlapping layers of drag chains and the relative sliding between the bottom layer of drag chains and the slide groove.

[0011] Furthermore, the drag chain link also includes a driving mechanism for driving the rolling column to slide, rolling shafts are provided at both ends of the rolling column, and a sliding groove is provided on the drag chain body corresponding to the rolling shaft. The rolling shaft is slidably connected to the sliding groove, and the driving mechanism can drive the rolling column to slide along the sliding groove.

[0012] In the present application, the rolling column can be retracted into the drag chain body or slid out from the drag chain body under the control of the driving mechanism. In this way, the rolling column can be extended when needed and can be retracted into the drag chain body when not needed for easy storage.

[0013] Furthermore, the driving mechanism includes a mounting shaft, a valve plate, a gear and a rack, the mounting shaft is rotatably connected to the drag chain body, the gear is fixed on the mounting shaft, one end of the rack is sleeved on the rolling shaft, the rack is engaged with the gear, and the drag chain body is fixed with a sleeve corresponding to the position of the rack, and the rack is slidably arranged in the sleeve.

[0014] In this application, a valve plate, a mounting shaft, a rack and other structures are provided to drive the rolling column. When a cable is passed through the drag chain body, the cable can drive the valve plate to rotate, and drive the rolling column to slide out of the drag chain body for use. In this way, the rolling column can protect the drag chain when the device is in use.

[0015] Furthermore, a reset mechanism is provided at one end of the rack away from the rolling shaft, and the reset mechanism is used to drive the rack and the rolling column to reset.

[0016] In the present application, a reset mechanism is provided to drive the rolling post to reset, so that when no cable is passed through the drag chain body, the rolling post can be retracted into the drag chain body for easy storage.

[0017] Furthermore, the reset mechanism includes a mounting seat, a tension spring and a limiting column, one end of the limiting column is fixed on the mounting seat, and the other end is passed through the rack, one end of the tension spring is fixed to the mounting seat, and the other end is fixed to the rack.

[0018] The utility model adopting the above technical solution has the following advantages:

[0019] 1. In the present application, rolling columns are provided on the drag chain bodies. When the drag chains overlap, the drag chain bodies are in contact and supported by the rolling columns. In this way, when the overlapping parts move relative to each other, the drag chain bodies will not contact each other. The rolling columns can facilitate the relative movement between the drag chain bodies and prevent phenomena such as the joints being pulled off.

[0020] 2. In this application, rolling columns are provided on the upper and lower parts of the drag chain body to facilitate the relative sliding between the three overlapping layers of drag chains and the relative sliding between the bottom layer of drag chains and the slide groove.

[0021] 3. In the present application, the rolling column can be retracted into the drag chain body or slid out from the drag chain body under the control of the driving mechanism. In this way, the rolling column can be extended when needed and can be retracted into the drag chain body when not needed for easy storage. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention can be further described by way of non-limiting examples given in the accompanying drawings;

[0023] Figure 1 This is a schematic diagram of the overall structure of the wheeled drag chain of the present invention;

[0024] Figure 2 This is a structural diagram of the wheel type drag chain drag chain section of the present invention;

[0025] Figure 3 This is a schematic structural diagram of the wheel type drag chain drive mechanism and reset mechanism of the utility model;

[0026] Figure 4 This is a schematic structural diagram of the roller column of the wheel-type drag chain of the present invention.

[0027] The main component symbols are described as follows:

[0028] 10. Drag chain body; 11. Slide; 12. Sleeve;

[0029] 20. Rolling column; 21. Rolling shaft;

[0030] 31. Mounting shaft; 32. Valve plate; 33. Gear; 34. Rack;

[0031] 41. Mounting seat; 42. Tension spring; 43. Limiting column. DETAILED DESCRIPTION

[0032] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that similar or identical parts in the drawings or in the specification are numbered the same. Implementations not shown or described in the drawings are forms known to those skilled in the art. In addition, directional terms such as "upper," "lower," "top," "bottom," "left," "right," "front," and "back" mentioned in the embodiments are merely references to the directions in the drawings and are not intended to limit the scope of protection of the present invention.

[0033] like Figures 1 to 4As shown, the present invention discloses a novel wheeled drag chain. The novel wheeled drag chain is composed of multiple drag chain links connected in series. Each drag chain link includes a drag chain body 10 and a roller 20 disposed on the upper portion of the drag chain body 10. The roller 20 is rotatably connected to the drag chain body 10, and at least a portion of the roller 20 is disposed externally of the drag chain body 10. In this application, the roller 20 is disposed on the drag chain body 10. When the drag chains overlap, the drag chain bodies 10 are contacted and supported by the roller 20. In this way, when the overlapping parts move relative to each other, the drag chain bodies 10 do not contact each other. The roller 20 facilitates relative movement between the drag chain bodies 10 and prevents joints from pulling apart. The roller 20 can be fixed to the drag chain body 10 or rotatably mounted to the drag chain body 10.

[0034] Preferably, two sets of rollers 20 are provided in a single drag chain body 10. The two sets of rollers 20 are respectively provided at the upper and lower end surfaces of the drag chain body 10. This facilitates the relative sliding of the drag chain body 10 in the portion where the drag chain has an S-shaped overlapping section 34.

[0035] The drag chain link also includes a drive mechanism for driving the rolling column 20 to slide. The rolling column 20 is provided with a rolling shaft 21 at both ends. The drag chain body 10 is provided with a slide groove 11 at the position corresponding to the rolling shaft 21. The rolling shaft 21 is slidably connected to the slide groove 11. The drive mechanism can drive the rolling column 20 to slide along the slide groove 11.

[0036] The drive mechanism includes a mounting shaft 31, a valve plate 32, a gear 33, and a rack 34. The mounting shaft 31 is rotatably connected to the drag chain body 10. The gear 33 is fixed to the mounting shaft 31. One end of the rack 34 is sleeved on the rolling shaft 21. The rack 34 is meshed with the gear 33. A sleeve 12 is fixed to the drag chain body 10 at a position corresponding to the rack 34. The rack 34 is slidably disposed within the sleeve 12. The drive mechanism can be composed of the mounting shaft 31 and valve plate 32 as described above, or a hydraulic rod, cylinder, or the like can be used to directly drive the rolling column 20. In this application, the use of components such as the valve plate 32 reduces improvement and installation costs while ensuring the intended use.

[0037] In this way, the roller 20 will only slide out of the drag chain body 10 when a cable is passed through the drag chain body 10 to protect the drag chain body 10. That is, the roller can protect the drag chain body 10 during use, and retract into the drag chain body 10 under the influence of its own weight when not in use.

[0038] Optionally, a reset mechanism is provided at the end of the rack 34 away from the rolling shaft 21. This reset mechanism is used to reset the rack 34 and the rolling post 20. To improve the efficiency of resetting the rolling post 20, the present application provides a reset mechanism at one end of the rack 34. The reset mechanism includes a mounting seat 41, a tension spring 42, and a limiting post 43. The limiting post 43 is fixed to the mounting seat 41 at one end and inserted into the rack 34 at the other end. The tension spring 42 is fixed to the mounting seat 41 at one end and to the rack 34 at the other end. In this way, when no cables are installed in the device, the reset mechanism can retract the rolling post 20 into the drag chain body 10, facilitating storage and reducing space usage.

[0039] The above describes in detail the novel wheeled drag chain provided by the present invention. The description of the specific embodiments is intended only to facilitate understanding of the method and core concept of the present invention. It should be noted that those skilled in the art may make various improvements and modifications to the present invention without departing from the principles of the present invention, and such improvements and modifications fall within the scope of protection of the claims of the present invention.

Claims

1. A new type of wheel drag chain, characterized in that: The invention comprises a plurality of drag chain links connected in series, each of the drag chain links comprising a drag chain body (10) and a rolling column (20) arranged on the upper part of the drag chain body (10), the rolling column (20) being rotatably connected to the drag chain body (10), and at least a part of the rolling column (20) being arranged outside the drag chain body (10).

2. The new wheeled drag chain according to claim 1 is characterized in that: The number of the rolling columns (20) is set to two, and they are respectively arranged at the upper end surface and the lower end surface of the drag chain body (10).

3. The new wheel drag chain according to claim 1 is characterized in that: The drag chain link also includes a driving mechanism for driving the rolling column (20) to slide, wherein rolling shafts (21) are provided at both ends of the rolling column (20), and a slide groove (11) is provided on the drag chain body (10) corresponding to the rolling shaft (21), and the rolling shaft (21) is slidably connected to the slide groove (11), and the driving mechanism can drive the rolling column (20) to slide along the slide groove (11).

4. The new wheel drag chain according to claim 3 is characterized in that: The driving mechanism includes a mounting shaft (31), a valve plate (32), a gear (33) and a rack (34); the mounting shaft (31) is rotatably connected to the drag chain body (10); the gear (33) is fixed on the mounting shaft (31); one end of the rack (34) is sleeved on the rolling shaft (21); the rack (34) is engaged with the gear (33); a sleeve (12) is fixed on the drag chain body (10) at a position corresponding to the rack (34); and the rack (34) is slidably arranged in the sleeve (12).

5. The new wheel drag chain according to claim 4 is characterized in that: A reset mechanism is provided at one end of the rack (34) away from the rolling shaft (21), and the reset mechanism is used to drive the rack (34) and the rolling column (20) to reset.

6. The new wheel drag chain according to claim 5 is characterized in that: The reset mechanism comprises a mounting seat (41), a tension spring (42) and a limiting column (43); one end of the limiting column (43) is fixed on the mounting seat (41), and the other end is passed through the rack (34); one end of the tension spring (42) is fixed to the mounting seat (41), and the other end is fixed to the rack (34).

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