Novel chain pinching and connecting device for transmission chain of coal feeder

Abstract

The utility model relates to the technical field of chain transmission of coal feeders, in particular to a novel chain pinching and connecting device for a transmission chain of a coal feeder. Comprising a left plier body and a right plier body, clamping mechanisms are arranged on the opposite faces of a left plier head and a right plier head, a locking mechanism is arranged between the outer ends of a left handle and a right handle, a first screw opposite to the right handle penetrates through the middle of the left handle in a threaded mode, and an ejector rod is arranged at the inner end of the first screw. A groove matched with the chain is formed in the middle of the inner side face of the right handle, and a through hole opposite to the ejector rod is formed in the groove. The clamping mechanisms of the left plier head and the right plier head are clamped on the pin shafts of the chains on the two sides respectively, the left handle and the right handle are controlled to be closed to pull the chains towards the middle, then the left handle and the right handle are locked through the locking mechanism, before the chains are pinched, the left handle and the right handle are adjusted to be parallel, and the locking mechanism is used for locking the largest opening. The first screw rod is rotated to enable the ejector rod to move towards the right handle side, and the ejector rod ejects the pin shaft of the chain out of the through hole.

Description

Technical Field

[0001] The utility model relates to the technical field of coal feeder chain transmission, in particular to a novel coal feeder transmission chain pinching chain device. Background Art

[0002] As the middle link of coal flow transportation, the coal feeder feeds the raw coal from the coal bunker to the next level of transport belt. In the actual production of coal feeding, the transmission chain between the reducer wheel of the coal feeder and the driving roller wheel of the coal feeder conveyor belt may break due to wear, or the chain may become longer and jump after a long period of use, which requires pinching and connecting the chain. In the past, when pinching and connecting the chain of the coal feeder, it was necessary to use wire to tighten the two sides of the chain connection position to the middle position, or to loosen the upper chain on the side wheel of the driving wheel. When pinching and connecting the chain, it is very difficult to remove the connecting pins between the chains, and different tools are required, which wastes time and manpower. There are also major unsafe factors in the process of pinching and connecting the chain. Utility Model Content

[0003] The utility model aims to solve the above problems, thereby providing a fast and efficient new type of coal feeder transmission chain pinching chain device.

[0004] The utility model solves the above problems and adopts the following technical solutions:

[0005] A novel coal feeder transmission chain pinch chain device comprises a left clamp body and a right clamp body, the left clamp body comprises a parallel left clamp head and a left handle, a first connecting rod is obliquely arranged between the left clamp head and the left handle, the right clamp body comprises a parallel right clamp head and a right handle, a second connecting rod is obliquely arranged between the right clamp head and the right handle, the middle parts of the first connecting rod and the second connecting rod are hinged, a clamping mechanism is arranged on the opposite surfaces of the left clamp head and the right clamp head, a locking mechanism is arranged between the outer ends of the left handle and the right handle, a first screw rod opposite to the right handle is threaded through the middle part of the left handle, a push rod is arranged at the inner end of the first screw rod, a groove matched with the chain is opened in the middle part of the inner side surface of the right handle, and a through hole opposite to the push rod is opened inside the groove.

[0006] Compared with the prior art, the utility model adopting the above technical solution has the following outstanding features:

[0007] Open the left and right pliers heads, and insert them into the single-section chains to be connected on both sides respectively. The clamping mechanisms of the left and right pliers heads are clamped on the pins of the chains on both sides respectively. Control the left and right handles to close and pull the chain to the middle. Then lock the left and right handles through the locking mechanism, and then connect the chain. Before pinching the chain, adjust the left and right handles to be parallel and use the locking mechanism to lock the maximum opening. Put the chain into the groove, turn the first screw to move the push rod to the right handle side, and make the push rod push the pin of the chain out of the through hole. The pinching and connecting tools are combined into one to achieve fast and efficient pinching and connecting work.

[0008] As a preferred embodiment, a further technical solution of the utility model is:

[0009] Furthermore, the clamping mechanism comprises a first protrusion and a second protrusion fixed on the inner side surface of the left clamp head at intervals along the length direction, and a third protrusion and a fourth protrusion fixed on the inner side surface of the right clamp head at intervals along the length direction.

[0010] Furthermore, the locking mechanism includes a threaded sleeve hinged at the outer end of the right handle, and a clamping plate is extended outward from the outer end of the left handle. The clamping plate is provided with an adjustment hole, and a second screw rod passes through the adjustment hole. One side of the second screw rod is threadedly connected to the threaded sleeve, and the other side of the second screw rod is provided with a locking nut.

[0011] Furthermore, the outer end of the first screw is connected with a hand wheel.

[0012] Furthermore, a non-slip rubber sleeve is provided on one side of the left handle and the right handle away from the left pliers head and the right pliers head. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the main structure of an embodiment of the utility model;

[0014] Figure 2 It is a bottom view structural diagram of the groove and the through hole of the embodiment of the utility model;

[0015] Marked in the figure are: left pliers body 1, left pliers head 11, first protrusion 111, second protrusion 112, left handle 12, right pliers body 2, right pliers head 21, third protrusion 211, fourth protrusion 212, right handle 22, first screw 3, push rod 4, groove 5, through hole 6, threaded sleeve 7, clamping plate 8, second screw 9, locking nut 10, handwheel 15, anti-slip rubber sleeve 16. DETAILED DESCRIPTION

[0016] The present invention is further described below in conjunction with embodiments, the purpose of which is only to provide a better understanding of the content of the present invention. Therefore, the examples given do not limit the protection scope of the present invention.

[0017] A novel chain connecting device for a coal feeder transmission chain comprises a left clamp body 1 and a right clamp body 2, wherein the left clamp body 1 comprises a parallel left clamp head 11 and a left handle 12, a first connecting rod is obliquely arranged between the left clamp head 11 and the left handle 12, the right clamp body 2 comprises a parallel right clamp head 21 and a right handle 22, a second connecting rod is obliquely arranged between the right clamp head 21 and the right handle 22, the first connecting rod and the second connecting rod are hinged at the middle part, a clamping mechanism is arranged on the opposite surfaces of the left clamp head 11 and the right clamp head 21, and a locking mechanism is arranged between the outer ends of the left handle 21 and the right handle 22 A first screw rod 3 opposite to the right handle 22 is threaded through the middle part of the left handle 12, a push rod 4 is arranged at the inner end of the first screw rod 3, a groove 5 matched with the chain is opened in the middle part of the inner side surface of the right handle 22, and a through hole 6 opposite to the push rod 4 is opened inside the groove 5. When the chain is connected, the chain is embedded in the groove 5, and the push rod 4 is driven to move by the first screw rod 3 to push the pin shaft of the chain out through the through hole 6. The size of the coal feeder chain is relatively large. After on-site adjustment, when the chains on both sides are close to each other to meet the chain connection conditions, the left clamp head 11 and the right clamp head 21 are roughly in a parallel state.

[0018] Furthermore, the clamping mechanism includes a first protrusion 111 and a second protrusion 112 fixed on the inner side of the left clamp head 11 at intervals along the length direction, and a third protrusion 211 and a fourth protrusion 212 fixed on the inner side of the right clamp head 21 at intervals along the length direction. Since the distance between the two pins of the single-section chain of the coal feeder is relatively large, the ends of the left clamp head 11 and the right clamp head 21 can extend between the two pins, and the first protrusion 111 and the second protrusion 112 cooperate to clamp the pin of the single-section chain on one side and pull it inward, and the third protrusion 211 and the fourth protrusion 212 cooperate to clamp the pin of the single-section chain on the other side and pull it inward.

[0019] Furthermore, the locking mechanism includes a threaded sleeve 7 hinged at the outer end of the right handle 22, and a clamping plate 8 is extended outward from the outer end of the left handle 12. An adjustment hole is opened on the clamping plate 8, and a second screw 9 passes through the adjustment hole. One side of the second screw 9 is screwed to the threaded sleeve 7, and the other side of the second screw 9 is provided with a locking nut 10. When pinching and connecting the chain, the second screw 9 passes through the adjustment hole and is connected to the threaded sleeve 7 and is locked and fixed by the locking nut 10. The adjustment hole is a long hole, and the left clamp head 11 and the right clamp head 21 cannot be guaranteed to be completely horizontal when connecting the chain. The angle of the second screw 9 and the clamping plate 8 can be adjusted through the long hole, which is convenient for screwing with the threaded sleeve 7.

[0020] Furthermore, a hand wheel 15 is connected to the outer end of the first screw rod 3 , and the movement of the first screw rod 3 is adjusted by the hand wheel 15 .

[0021] Furthermore, a non-slip rubber sleeve 16 is provided on one side of the left handle 12 and the right handle 22 away from the left pliers head 11 and the right pliers head 21 .

[0022] Open the left and right pliers heads, and insert them into the single-section chains to be connected on both sides respectively. The clamping mechanisms of the left and right pliers heads are clamped on the pins of the chains on both sides respectively. Control the left and right handles to close and pull the chain to the middle. Then lock the left and right handles through the locking mechanism, and then connect the chain. Before pinching the chain, adjust the left and right handles to be parallel and use the locking mechanism to lock the maximum opening. Put the chain into the groove, turn the first screw to move the push rod to the right handle side, and make the push rod push the pin of the chain out of the through hole. The pinching and connecting tools are combined into one to achieve fast and efficient pinching and connecting work.

[0023] The above description is only a preferred feasible embodiment of the present utility model, and does not limit the scope of rights of the present utility model. All equivalent changes made using the contents of the present utility model specification and its drawings are included in the scope of rights of the present utility model.

Claims

1. A novel coal feeder transmission chain pinching chain device, comprising a left clamp body and a right clamp body, characterized in that: The left pliers body includes a parallel left pliers head and a left handle, a first connecting rod is obliquely arranged between the left pliers head and the left handle, the right pliers body includes a parallel right pliers head and a right handle, a second connecting rod is obliquely arranged between the right pliers head and the right handle, the middle parts of the first connecting rod and the second connecting rod are hinged, a clamping mechanism is arranged on the opposite surfaces of the left pliers head and the right pliers head, a locking mechanism is arranged between the outer ends of the left handle and the right handle, a first screw rod opposite to the right handle is threaded through the middle part of the left handle, a push rod is arranged at the inner end of the first screw rod, a groove matching the chain is opened in the middle part of the inner side surface of the right handle, and a through hole opposite to the push rod is opened inside the groove.

2. The novel coal feeder transmission chain pinching chain device according to claim 1 is characterized in that: The clamping mechanism comprises a first convex block and a second convex block fixed at intervals on the inner side surface of the left clamp head along the length direction, and a third convex block and a fourth convex block fixed at intervals on the inner side surface of the right clamp head along the length direction.

3. The novel coal feeder transmission chain pinching chain device according to claim 1 is characterized in that: The locking mechanism includes a threaded sleeve hinged at the outer end of the right handle, and a clamping plate is extended outward from the outer end of the left handle. The clamping plate is provided with an adjustment hole, and a second screw rod passes through the adjustment hole. One side of the second screw rod is threadedly connected to the threaded sleeve, and the other side of the second screw rod is provided with a locking nut.

4. The novel coal feeder transmission chain pinching chain device according to claim 1 is characterized in that: The outer end of the first screw is connected with a hand wheel.

5. The novel coal feeder transmission chain pinching chain device according to claim 1 is characterized in that: An anti-slip rubber sleeve is arranged on one side of the left handle and the right handle away from the left pliers head and the right pliers head.

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