Large-stroke anti-torsion pushing chain

Abstract

The utility model relates to the technical field of mechanical transmission equipment, in particular to a large-stroke torsion-resistant pushing chain which comprises two inner chain plates, second pin shafts and connecting pieces, the two inner chain plates are arranged in parallel, the two second pin shafts are longitudinally connected to one sides of the inner chain plates in an inserted mode, the two inner chain plates and the two second pin shafts form chain blocks, protruding blocks are arranged on the top faces of the chain blocks, and the protruding blocks are connected with the connecting pieces. A groove is formed in the bottom face of each chain block and matched with the adjacent protruding block in an inserted mode, the top face of each chain block is matched with the bottom face of the adjacent chain block in a contact mode, the second pin shaft is connected with the second pin shaft of the other chain block through a connecting piece, the chain blocks are arranged to be in an asymmetric shape, it can be guaranteed that the chain blocks are not dislocated after the chain is subjected to torsion, and the chain is prevented from being damaged. When the grooves are matched with the adjacent protruding blocks in an inserted mode, the maximum contact area between the chain blocks is increased through stacking of the chain blocks, and therefore the maximum section inertia moment of the pushing chain is increased, and the maximum stroke of the pushing chain is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical transmission equipment, in particular to a large-stroke anti-torsion push chain. Background Art

[0002] Push chain, also known as rigid chain, is a "rigid and flexible" chain that is rigid in one direction and flexible in the other direction. It is generally used as a linear transmission component in industry. The chain blocks are stacked and connected by connectors. This form makes full use of the contact between the chain blocks and pushes stably.

[0003] However, the push chain in the prior art is a simple stack of chain blocks, which makes it unable to resist torque. In some special scenarios, when the chain is subjected to torque, it often causes the chain blocks to be misaligned and cause damage to the chain. Utility Model Content

[0004] The utility model aims to provide a large-stroke anti-twist push chain to solve the problem raised in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a long-stroke anti-torsion push chain, comprising: an inner link plate, a second pin shaft and a connecting piece, the two inner link plates are arranged in parallel, two second pin shafts are longitudinally inserted on one side of the inner link plate, the two inner link plates and the two second pin shafts form a chain block, a protrusion is provided on the top surface of the chain block, a groove is provided on the bottom surface of the chain block, the groove is plugged into and matched with the adjacent protrusion, the top surface of the chain block is in contact with the bottom surface of the adjacent chain block, and the second pin shaft is connected to the second pin shaft of another chain block through the connecting piece.

[0006] Preferably, the connecting member is specifically a connecting chain plate, one end of two connecting chain plates is rotatably connected to the second pin, and the other end of the connecting chain plate is rotatably connected to the second pin of the adjacent chain block.

[0007] Preferably, a rounded corner is respectively provided at the top and the bottom of the chain block, the rounded corner is frictionally matched with the rounded corner of another chain block, and the center of the rounded corner coincides with the axis of the second pin.

[0008] Preferably, two outer link plates are inserted on the second pin shaft, the inner link plate is arranged between the two outer link plates, and the top surface of the outer link plate is in contact with the bottom surface of the outer link plate of the adjacent chain block.

[0009] Preferably, the top surface of the outer link plate is higher than the top surface of the inner link plate, and the bottom surface of the outer link plate is higher than the bottom surface of the inner link plate.

[0010] Preferably, a second rounded corner is respectively provided at the top and the bottom of the outer link plate, and the second rounded corner is arranged concentrically with the center of the rounded corner.

[0011] Preferably, rollers are mounted on both ends of the pin shaft, one end of the roller is in contact with the end surface of the outer link plate, and a gasket is mounted on the other end of the roller.

[0012] Preferably, two pins are longitudinally mounted on the other side of the inner link plate, and the pins are plug-fitted with the outer link plate and the inner link plate.

[0013] Preferably, a sleeve is sleeved on the pin shaft, and the sleeve is arranged between two inner link plates.

[0014] Preferably, a retaining spring is clamped on the side wall of the end of the pin shaft, and the side wall of the retaining spring cooperates with the end surface of the sleeve to fix the outer link plate and the inner link plate.

[0015] The beneficial effects of the utility model are as follows:

[0016] 1. Set the chain blocks to an asymmetric shape to ensure that the chain blocks are not misaligned when the chain is subjected to torsion, thus avoiding damage to the chain;

[0017] 2. While the grooves are plugged and matched with the adjacent protrusions, the maximum contact area between the chain blocks is increased by stacking the chain blocks, thereby increasing the maximum cross-sectional inertia moment of the push chain and improving the maximum travel of the push chain;

[0018] 3. The protrusion on the chain block is plugged into the groove on another chain block, so that the push chain is limited in the front and rear positions after the chain blocks are stacked, which increases the stability of the chain. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a front view of the main structure of the utility model;

[0020] Figure 2 It is a left side view of the subject structure of the utility model;

[0021] Figure 3 For the utility model Figure 2 Sectional view of AA in the middle;

[0022] Figure 4 It is a front view of the chain block of the utility model;

[0023] Figure 5 For the utility model Figure 4 Cross-sectional view of the middle BB;

[0024] Figure 6 For the utility model Figure 4 Cross-sectional view of CC.

[0025] In the figure: outer link plate 1, inner link plate 2, pin shaft 2 4, sleeve 5, roller 6, retaining ring 7, gasket 8, connecting chain plate 9. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] Example 1: Reference Figure 1-Figure 6 A long-stroke anti-torsion push chain comprises: an inner link plate 2, a pin shaft 2 4 and a connecting piece. The two inner link plates 2 are arranged in parallel, and two pin shafts 2 4 are longitudinally inserted on one side of the inner link plate 2. The two inner link plates 2 and the two pin shafts 2 4 form a chain block. A protrusion is provided on the top surface of the chain block, and a groove is provided on the bottom surface of the chain block. The groove is plugged into and matched with the adjacent protrusion. The top surface of the chain block contacts and cooperates with the bottom surface of the adjacent chain block. The pin shaft 2 4 is connected to the pin shaft 2 4 of another chain block through a connecting piece.

[0029] The principles and beneficial effects of the above scheme are:

[0030] The two inner link plates 2 are arranged in parallel, and the two inner link plates 2 are connected by two pin shafts 24 to form a chain block. The chain blocks are connected by connecting parts to form a chain. The chain blocks are set to an asymmetric shape by plugging and matching the grooves with adjacent protrusions. After the chain is subjected to torsion, it can ensure that the chain blocks are not misaligned to avoid damage to the chain; while the grooves are plugged and matched with the adjacent protrusions, the maximum contact area between the chain blocks is increased by stacking the chain blocks, thereby increasing the maximum cross-sectional moment of inertia of the push chain and improving the maximum stroke of the push chain; the protrusion on the chain block is plugged and matched with the groove on another chain block, so that the push chain is limited in the front and rear positions after the chain blocks are stacked, thereby increasing the stability of the chain.

[0031] Example 2: Reference Figure 1-Figure 6 The connecting member is specifically a connecting chain plate 9, and one end of two connecting chain plates 9 is rotatably connected to the pin shaft 2 4, and the other end of the connecting chain plate 9 is rotatably connected to the pin shaft 2 4 of the adjacent chain block.

[0032] The top and bottom ends of the chain block are each provided with a rounded corner, which is frictionally matched with the rounded corner of another chain block, and the center of the rounded corner coincides with the axis center of the pin shaft 2 4.

[0033] The principles and beneficial effects of the above scheme are:

[0034] The two ends of the connecting chain plate 9 are respectively rotatably connected to the pin shaft 2 4 in a chain block. A fillet is provided at the top and bottom ends of the chain block, and the center of the fillet coincides with the axis center of the pin shaft 2 4. When the chain turns, the top surface of the chain block disengages from the bottom surface of one chain block, and the bottom surface of the chain block disengages from the top surface of another chain block. At the same time, the protrusion ends plug-in fitting with the groove on the other chain block, and the groove ends plug-in fitting with the protrusion on the other chain block. The fillet frictionally fits with the fillet of another chain block. The fillet is provided to prevent the chain from being unable to turn.

[0035] Example 3: Reference Figure 1-Figure 6 Two outer link plates 1 are inserted on the pin shaft 2 4, and the inner link plate 2 is arranged between the two outer link plates 1. The top surface of the outer link plate 1 contacts and cooperates with the bottom surface of the outer link plate 1 of the adjacent chain block.

[0036] The top surface of the outer link plate 1 is higher than the top surface of the inner link plate 2 , and the bottom surface of the outer link plate 1 is higher than the bottom surface of the inner link plate 2 .

[0037] The outer link plate 1 is provided with a second fillet at the top and bottom respectively, and the second fillet is arranged concentrically with the center of the fillet.

[0038] The principles and beneficial effects of the above scheme are:

[0039] Two outer link plates 1 are installed on the pin shaft 2 4 so that the outer link plates 1 protect the inner link plates 2, thereby increasing the service life of the inner link plates 2; the top surface of the outer link plates 1 contacts and cooperates with the bottom surface of the outer link plates 1 of the adjacent chain blocks, and at the same time, the top surface of the outer link plates 1 is higher than the top surface of the inner link plates 2, and the bottom surface of the outer link plates 1 is higher than the bottom surface of the inner link plates 2, further increasing the contact area between the chain blocks, thereby simultaneously improving the limiting effect between the chain blocks and the maximum cross-sectional inertia moment of the chain; a fillet 2 is respectively provided at the top and bottom ends of the outer link plates 1, and the fillet 2 is concentrically arranged with the center of the fillet, and when the chain turns, the fillet 2 frictionally cooperates with the fillet 2 of another chain block, further ensuring the realization of the chain steering function.

[0040] Example 4: Reference Figure 1-Figure 6 The end of the pin shaft 2 4 is sleeved with a roller 6, one end of the roller 6 is in contact with the end surface of the outer link plate 1, and the other end of the roller 6 is provided with a gasket 8.

[0041] The principles and beneficial effects of the above scheme are:

[0042] A roller 6 is installed at each end of the pin shaft 4, and the outer link plate 1 is set between the two rollers 6. A gasket 8 is installed on the end surface of the roller 6 away from the outer link plate 1 to protect the roller 6 and prevent external dust or pollutants from damaging the roller 6.

[0043] Example 5: Reference Figure 1-Figure 6 Two pins 3 are longitudinally mounted on the other side of the inner link plate 2 , and the pins 3 are plug-fitted with the outer link plate 1 and the inner link plate 2 .

[0044] The pin shaft 3 is sleeved with a sleeve 5 , which is arranged between the two inner link plates 2 .

[0045] The end side wall of the pin shaft 3 is clamped with a retaining spring 7 , and the side wall of the retaining spring 7 cooperates with the end surface of the sleeve 5 to fix the outer link plate 1 and the inner link plate 2 .

[0046] The principles and beneficial effects of the above scheme are:

[0047] The sleeve 5 is mounted on the pin 3, and the pin 3 and the sleeve 5 cooperate with each other to increase the overall stability of the chain block; the retaining spring 7 and the sleeve 5 cooperate to fix the outer link plate 1 and the inner link plate 2, which further increases the stability of the chain block.

[0048] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention, and any figure mark in the claims should not be regarded as limiting the claims involved.

Claims

1. A long-stroke anti-torsion push chain, characterized in that: include: An inner link plate (2), a second pin shaft (4) and a connecting piece, wherein the two inner link plates (2) are arranged in parallel, two second pin shafts (4) are longitudinally inserted on one side of the inner link plate (2), and the two inner link plates (2) and the two second pin shafts (4) form a chain block, a protrusion is provided on the top surface of the chain block, a groove is provided on the bottom surface of the chain block, the groove is inserted and matched with the adjacent protrusion, the top surface of the chain block is in contact with the bottom surface of the adjacent chain block, and the second pin shaft (4) is connected to the second pin shaft (4) of another chain block through the connecting piece.

2. A long-stroke anti-torsion push chain according to claim 1, characterized in that: The connecting member is specifically a connecting chain plate (9), one end of two connecting chain plates (9) are rotatably connected to the second pin shaft (4), and the other end of the connecting chain plate (9) is rotatably connected to the second pin shaft (4) of the adjacent chain block.

3. A long-stroke anti-torsion push chain according to claim 2, characterized in that: The top and bottom ends of the chain block are each provided with a rounded corner, which is frictionally matched with the rounded corner of another chain block, and the center of the rounded corner coincides with the axis of the second pin (4).

4. A long-stroke anti-torsion push chain according to claim 3, characterized in that: Two outer link plates (1) are inserted on the second pin shaft (4), and the inner link plate (2) is arranged between the two outer link plates (1). The top surface of the outer link plate (1) contacts and cooperates with the bottom surface of the outer link plate (1) of the adjacent chain block.

5. A long-stroke anti-torsion push chain according to claim 4, characterized in that: The top surface of the outer link plate (1) is higher than the top surface of the inner link plate (2), and the bottom surface of the outer link plate (1) is higher than the bottom surface of the inner link plate (2).

6. A long-stroke anti-torsion push chain according to claim 5, characterized in that: The outer link plate (1) is provided with a second rounded corner at the top and bottom respectively, and the second rounded corner is arranged concentrically with the center of the rounded corner.

7. A long-stroke anti-torsion push chain according to claim 6, characterized in that: The two ends of the pin shaft (4) are sleeved with rollers (6), one end of the roller (6) is in contact with the end surface of the outer link plate (1), and the other end of the roller (6) is equipped with a gasket (8).

8. A long-stroke anti-torsion push chain according to claim 7, characterized in that: Two pins (3) are longitudinally mounted on the other side of the inner link plate (2), and the pins (3) are plug-fitted with the outer link plate (1) and the inner link plate (2).

9. A long-stroke anti-torsion push chain according to claim 8, characterized in that: The pin shaft (3) is sleeved with a sleeve (5), and the sleeve (5) is arranged between the two inner link plates (2).

10. A long-stroke anti-torsion push chain according to claim 9, characterized in that: The side wall of the end of the pin shaft (3) is clamped with a retaining spring (7), and the side wall of the retaining spring (7) cooperates with the end surface of the sleeve (5) to fix the outer link plate (1) and the inner link plate (2).

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