Combined cutting chain row system for ditcher

Abstract

The utility model relates to a combined cutting chain row system for a ditcher. The combined cutting chain row system for the ditcher comprises a chain, a cutter, a driving chain wheel, a driven chain wheel and a chain frame, the driving chain wheel and the driven chain wheel are rotationally connected to the head and tail ends of the chain frame; two ends of the chain are respectively matched with the driving sprocket and the driven sprocket; the chain comprises chain links and chain link connecting plates; each chain link comprises an inner chain plate and a pin shaft; the chain link connecting plate comprises a connecting plate and a supporting plate which are vertically connected; the inner chain plates are connected with the connecting plates through pin shafts; a connecting hole A is formed in the supporting plate; the cutter comprises a cutter plate and a seat plate; a connecting hole B correspondingly matched with the connecting hole A is formed in the seat plate; the connecting hole A and the connecting hole B are connected through a bolt and a nut; the knife board is arranged on the top of the seat board. According to the utility model, detachable connection between the cutter and the chain is realized; the chain is universal, so that the production management cost can be reduced; the installation and replacement difficulty of the cutter is reduced, and the production management cost of the cutting type cutting chain row system is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of trenching machine accessories, in particular to a combined cutting chain system for a trenching machine. Background Art

[0002] A trencher is a machine used to dig ditches. It is divided into chain trenchers and disc trenchers based on the cutting tools used. Chain trenchers are equipped with a cutting chain system and are often used for trench construction within farmland. Ditch construction within farmland is mainly used for digging water channels and applying fertilizers. Cutting tools are installed on the chain links of the cutting chain system. In existing cutting chain systems, the cutting tools are fixedly connected to the chain links. Furthermore, the cutting tools on the cutting chain system are arranged in a variety of ways. If a tool on a chain link in the entire chain system fails, the chain link needs to be repaired. If a component is mismatched during chain system assembly, the system needs to be disassembled and reassembled. For manufacturers, existing cutting chain systems require significant investment in production management and control to ensure that there are no problems with the cutting chain system once it leaves the factory. Utility Model Content

[0003] The purpose of the utility model is to solve the above problems and provide a combined cutting chain system for a trenching machine.

[0004] The technical solution of the utility model is as follows: a combined cutting chain system for a trenching machine includes a chain, a cutter, a driving sprocket, a passive sprocket, and a chain frame; the driving sprocket and the passive sprocket are rotatably connected to the head and tail ends of the chain frame respectively; the two ends of the chain cooperate with the driving sprocket and the passive sprocket respectively; the driving sprocket outputs torque to make the chain rotate cyclically; the passive sprocket maintains the extended state of the chain; the chain includes chain links and chain link connecting plates; the chain links are of conventional structure; the chain links include inner chain plates and pin shafts; the chain link connecting plates include connecting plates and supporting plates connected vertically; the inner chain plates and the connecting plates are connected by pin shafts The two chains are connected to form an endless chain; the support plate is provided with a connecting hole A; the tool includes a knife plate and a base plate; the base plate is provided with a connecting hole B corresponding to the connecting hole A; the connecting hole A and the connecting hole B are connected by bolts and nuts; the tool and the chain link connecting plate form a detachable connection structure; the knife plate is arranged on the top of the base plate; the installation position of the knife plate is different on the base plates of different tools; the chain is universal, which can reduce the production management cost; by replacing the tool, different arrangements of the knife plate can be achieved, the difficulty of installing and replacing the tool is reduced, and the production management cost of the cutting type cutting chain system is reduced.

[0005] Preferably, the blade is in the shape of an airplane tail, which can ensure a higher cutting force.

[0006] Preferably, the chain frame includes an active frame, a passive frame, a connecting screw, and a connecting nut; the tail end of the active frame is rotatably connected to the active sprocket; the front end of the passive frame is rotatably connected to the passive sprocket; the head end of the active frame and the tail end of the passive frame are connected through the connecting screw and the connecting nut; the chain frame is formed as a whole to maintain the rotation of the active sprocket and the passive sprocket.

[0007] Furthermore, a transverse long hole is provided at the tail end of the passive frame; the connecting screw passes through the connecting screw; the transverse long hole is conducive to compensating for the installation error of the passive frame.

[0008] Furthermore, there are several sets of connecting screws and connecting nuts to increase the connection strength between the active frame and the passive frame.

[0009] Furthermore, the chain frame also includes a pad tube; the pad tube is arranged between the two active frames; the two active frames clamp the pad tube; the pad tube is used to ensure that the chain is in a suitable position.

[0010] Furthermore, the pad tube is provided with a through hole corresponding to the connecting screw; the connecting screw passes through the through hole, thereby increasing the connection strength between the pad tube and the active frame and the passive frame.

[0011] Furthermore, the combined cutting chain system for the trenching machine also includes a drive shaft; the side of the drive shaft is provided with an axially penetrating keyway; the end of the drive shaft passes through the head end of the chain frame and is rotatably connected to the head end of the chain frame; a sleeve is mounted on the middle part of the drive shaft; the driving sprocket is provided with an installation keyway corresponding to the keyway; the installation keyway is connected to the keyway through a key bar. The sleeve cooperates with the washer tube to maintain the lateral position of the chain. The sleeve controls the lateral position of the driving sprocket; the washer tube is responsible for adjusting the lateral position of the middle and rear part of the chain frame; the key bar connects the installation keyway and the keyway into one, so that the drive shaft can output torque to the driving sprocket. The keyway is suitable for installing the driving sprocket at various axial positions of the drive shaft.

[0012] Preferably, the lower edge of the connecting plate is an arc edge, which can avoid collision with the driving sprocket and the passive sprocket.

[0013] Furthermore, the arc edge includes two connected convex arcs and one concave arc; the convex arcs are symmetrically arranged on both sides of the concave arc; the arc edge matches the ordinary inner link plate to ensure the overall operation smoothness of the chain.

[0014] Preferably, there are several sets of chains, driving sprockets and driven sprockets; and several cyclic cutting routes are formed between the chain racks, thereby increasing the diversity of the arrangement of the blades.

[0015] Preferably, the blades on adjacent seat plates are staggered, which is beneficial to improving the cutting effect.

[0016] The beneficial effects of the utility model are as follows: the combined cutting chain system for the trenching machine of the utility model has the following advantages:

[0017] (1) The utility model realizes a detachable connection between the tool and the chain; the chain is universal and can reduce production and management costs; by replacing the tool, different arrangements of the tool plates can be realized, the difficulty of installing and replacing the tool is reduced, and the production and management costs of the cutting type cutting chain system are reduced; the chain links, chain link connecting plates, tools, active sprockets, passive sprockets, active frames, and passive frames are all standardized and can be produced separately; during assembly, it is only necessary to replace the corresponding gaskets and bushings to realize the assembly of various numbers of chain chains; the production costs and management costs of the manufacturer can be effectively reduced.

[0018] (2) The transverse long hole of the utility model is helpful to compensate for the installation error of the passive frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a perspective view of the combined cutting chain system for the trenching machine of the utility model in the first embodiment;

[0020] Figure 2 yes Figure 1 Horizontal cross-sectional view of

[0021] Figure 3 It is a three-dimensional diagram of the link connecting plate;

[0022] Figure 4 This is a perspective view of the combined cutting chain system for the trenching machine of the utility model in the second embodiment;

[0023] Figure 5 yes Figure 4 Horizontal cross-sectional view of

[0024] In the figure: 1. chain, 11. chain link, 111. inner link plate, 112. pin, 12. chain link connecting plate, 121. connecting plate, 122. support plate, 1221. connecting hole A, 21. knife plate, 22. seat plate, 221. connecting hole B, 3. driving sprocket, 31. mounting keyway, 32. key bar, 4. driven sprocket, 51. driving frame, 52. driven frame, 521. transverse long hole, 53. connecting screw, 54. connecting nut, 55. washer, 551. through hole, 6. drive shaft, 61. through keyway, 62. bushing. DETAILED DESCRIPTION

[0025] Example 1: See Figure 1-3A combined cutting chain system for a trenching machine includes a chain 1, a cutter, a driving sprocket 3, a driven sprocket 4, and a chain frame; the driving sprocket 3 and the driven sprocket 4 are rotatably connected to the head and tail ends of the chain frame respectively; the two ends of the chain 1 cooperate with the driving sprocket 3 and the driven sprocket 4 respectively; the driving sprocket 3 outputs torque to make the chain 1 rotate cyclically; the driven sprocket 4 maintains the extended state of the chain 1; the chain 1 includes a chain link 11 and a chain link connecting plate 12; the chain link 11 is a conventional structure; the chain link 11 includes an inner chain plate 111 and a pin 112; the chain link connecting plate 12 includes a connecting plate 121 and a supporting plate 122 connected vertically; the inner chain plate 111 is connected to the connecting plate 121 through the pin 112 to form a An annular chain 1; the support plate 122 is provided with a connecting hole A 1221; the tool includes a knife plate 21 and a seat plate 22; the seat plate 22 is provided with a connecting hole B 221 corresponding to the connecting hole A 1221; the connecting hole A 1221 and the connecting hole B 221 are connected by bolts and nuts; the tool and the chain link connecting plate 12 form a detachable connection structure; the knife plate 21 is arranged on the top of the seat plate 22; the installation position of the knife plate 21 is different on the seat plates 22 of different tools; the chain 1 is universal and can reduce production management costs; by replacing the tool, different arrangements of the knife plate 21 can be achieved, the difficulty of installing and replacing the tool is reduced, and the production management cost of the cutting chain system is reduced.

[0026] Compared with the prior art, the present invention realizes a detachable connection between the tool and the chain 1; the chain 1 is universal and can reduce production management costs; by replacing the tool, different arrangements of the tool plate 21 can be achieved, the difficulty of installing and replacing the tool is reduced, and the production management cost of the cutting chain system is reduced.

[0027] The blade 21 is in the shape of an airplane tail, which can ensure a high cutting force.

[0028] The chain frame includes an active frame 51, a passive frame 52, a connecting screw 53, and a connecting nut 54; the tail end of the active frame 51 is rotationally connected to the active sprocket 3; the front end of the passive frame 52 is rotationally connected to the passive sprocket 4; the head end of the active frame 51 and the tail end of the passive frame 52 are connected by the connecting screw 53 and the connecting nut 54; the chain frame is formed into a whole to maintain the rotation of the active sprocket 3 and the passive sprocket 4.

[0029] A transverse long hole 521 is provided at the rear end of the passive frame 52 ; the connecting screw 53 passes through the connecting screw 53 ; the transverse long hole 521 is helpful for compensating for the installation error of the passive frame 52 .

[0030] There are several sets of connecting screws 53 and connecting nuts 54 to increase the connection strength between the active frame 51 and the passive frame 52. In this embodiment, there are two sets of connecting screws 53 and connecting nuts 54.

[0031] The two sets of connecting screws 53 and connecting nuts 54 are arranged along the length direction of the chain frame to prevent the passive sprocket 4 from sagging.

[0032] The chain frame further includes a washer tube 55 ; the washer tube 55 is disposed between the two active frames 51 ; the two active frames 51 clamp the washer tube 55 ; the washer tube 55 is used to ensure that the chain 1 is in a suitable position.

[0033] There are two pad tubes 55 symmetrically arranged on both sides of the passive frame 52 .

[0034] The pad tube 55 is provided with a through hole 551 that matches the connecting screw 53 ; the connecting screw 53 passes through the through hole 551 to increase the connection strength between the pad tube 55 and the active frame 51 and the passive frame 52 .

[0035] The combined cutting chain system for a trenching machine also includes a drive shaft 6; a keyway 61 extending axially through the side of the drive shaft 6 is provided; the end of the drive shaft 6 extends through the head end of the chain frame and is rotatably connected to the head end of the chain frame; a sleeve 62 is mounted in the middle of the drive shaft 6; the driving sprocket 3 is provided with an installation keyway 31 that matches the keyway 61; the installation keyway 31 is connected to the keyway 61 via a key bar 32. The sleeve 62 cooperates with the washer 55 to maintain the lateral position of the chain 1. The sleeve 62 controls the lateral position of the driving sprocket 3; the washer 55 is responsible for adjusting the lateral position of the middle and rear portion of the chain frame; the key bar 32 connects the installation keyway 31 and the keyway 61, allowing the drive shaft 6 to output torque to the driving sprocket 3. The keyway 61 is suitable for installing the driving sprocket 3 at various axial positions on the drive shaft 6.

[0036] The lower edge of the connecting plate 121 is an arc edge, which can avoid collision with the driving sprocket 3 and the driven sprocket 4.

[0037] The arc edge includes two connected convex arcs and one concave arc; the convex arcs are symmetrically arranged on both sides of the concave arc; the arc edge matches the ordinary inner link plate 111 to ensure the overall operation smoothness of the chain 1.

[0038] The operating principle of this embodiment is as follows: the cutter and the chain link connecting plate 12 form a removable connection structure; the blade 21 is installed in different positions on the base plate 22 of different cutters; the chain 1 is universal, which can reduce production and management costs; by replacing the cutter, different arrangements of the blade 21 can be achieved, making the installation and replacement of the cutter easier, thereby reducing the production and management costs of the cutting chain system. The transverse elongated hole 521 helps compensate for installation errors of the passive frame 52. The connecting screw 53 passes through this through hole 551, increasing the connection strength of the spacer tube 55 to the active frame 51 and the passive frame 52.

[0039] Example 2: See Figure 4-5, embodiment 2 is basically the same as embodiment 1, and the similarities are not repeated here. The differences are: there are several sets of chains 1, driving sprockets 3, and driven sprockets 4; several circular cutting routes are formed between the chain racks, increasing the diversity of the arrangement of the blade 21.

[0040] In this embodiment, there are two sets of chains 1, driving sprockets 3 and driven sprockets 4.

[0041] There are two pad tubes 55 , which are arranged between the two passive frames 52 .

[0042] The blades 21 on adjacent seat plates 22 are staggered, which is beneficial to improving the cutting effect.

Claims

1. A combined cutting chain system for a trenching machine, characterized in that: It includes a chain, a tool, a driving sprocket, a passive sprocket, and a chain frame; the driving sprocket and the passive sprocket are rotatably connected to the head and tail ends of the chain frame respectively; the two ends of the chain cooperate with the driving sprocket and the passive sprocket respectively; the chain includes chain links and chain link connecting plates; the chain links include inner chain plates and pin shafts; the chain link connecting plates include vertically connected connecting plates and supporting plates; the inner chain plates are connected to the connecting plates through pin shafts; the supporting plate is provided with connecting hole A; the tool includes a knife plate and a seat plate; the seat plate is provided with connecting hole B corresponding to connecting hole A; connecting hole A and connecting hole B are connected by bolts and nuts; the knife plate is arranged on the top of the seat plate.

2. The combined cutting chain system for a trencher according to claim 1, characterized in that: The chain frame includes an active frame, a passive frame, a connecting screw and a connecting nut; the tail end of the active frame is rotatably connected to the active sprocket; the front end of the passive frame is rotatably connected to the passive sprocket; the head end of the active frame and the tail end of the passive frame are connected through the connecting screw and the connecting nut.

3. The combined cutting chain system for a trencher according to claim 2, characterized in that: A transverse long hole is provided at the tail end of the passive frame; the connecting screw passes through the connecting screw.

4. The combined cutting chain system for a trencher according to claim 2, characterized in that: There are several sets of connecting screws and connecting nuts.

5. The combined cutting chain system for a trencher according to claim 2, characterized in that: The chain frame further comprises a pad tube, which is arranged between the two active frames and clamped by the two active frames.

6. The combined cutting chain system for a trencher according to claim 5, characterized in that: The gasket tube is provided with a through hole matching and corresponding to the connecting screw rod; the connecting screw rod passes through the through hole.

7. The combined cutting chain system for a trencher according to claim 1, characterized in that: The lower edge of the connecting plate is a circular arc edge.

8. The combined cutting chain system for a trencher according to claim 7, characterized in that: The arc edge includes two connected convex arcs and a concave arc; the convex arcs are symmetrically arranged on both sides of the concave arc.

9. The combined cutting chain system for a trencher according to claim 1, characterized in that: There are several sets of chains, driving sprockets and driven sprockets.

10. The combined cutting chain system for a trencher according to claim 1, characterized in that: The knife plates on adjacent seat plates are staggered.

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