Mounting and tightening device for large-pitch chain

Abstract

The utility model relates to an installing and tightening device for a large-pitch chain, which aims to solve the technical problem that section steel is difficult to bundle and tighten, and adopts the technical scheme that the installing and tightening device for the large-pitch chain comprises a manual hydraulic pump, a hydraulic cylinder, two installing seats, two grippers and a reset spring, the two mounting seats are fixedly arranged at the tail of the hydraulic cylinder and the front end of the telescopic rod respectively, a guide rod is arranged between the two mounting seats below the hydraulic cylinder, the two ends of the guide rod are connected with the outer sides of the two mounting seats through bolts respectively, the two scrabbling claws are fixedly arranged on the bottom faces of the two mounting seats respectively, and arc-shaped clamping grooves are formed in the lower portions of the opposite faces of the two scrabbling claws. The hydraulic cylinder is sleeved with the reset spring, and the two ends of the reset spring are connected with the two mounting bases correspondingly. According to the chain tightening device, the hydraulic cylinder stretches out and draws back to drive the raking grabs to tighten the chain, the chain tightening operation time is greatly shortened, and the labor intensity of workers is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to section steel bundling equipment technical field, concretely relates to a kind of installation of large pitch chain tightener. BACKGROUND

[0002] In section steel production line, collection rack chain is non-standard chain, pitch is 315mm, mainly used for the conveying of section steel after bundling, it is found in actual use, when replacing chain, it is difficult to tighten in the process of installing chain due to the heavy weight of chain, leading to the time-consuming and laborious disassembly and installation chain, greatly disturb the replacement work of chain. SUMMARY

[0003] The utility model aims at solving above-mentioned problem, provide a kind of installation of large pitch chain tightener.

[0004] To solve the above technical problems, the utility model adopts the technical scheme that:

[0005] A kind of installation of large pitch chain tightener, including hand-operated hydraulic pump, hydraulic cylinder, two mounting seats, two grab and reset spring, the hand-operated hydraulic pump is communicated with hydraulic cylinder by oil pipe, the two mounting seats are respectively fixed in the tail of hydraulic cylinder and telescopic rod front end, the two grab are respectively fixed on the bottom surface of two mounting seats, and the opposite surface lower part of two grab is equipped with arc slot, the reset spring is sleeved on hydraulic cylinder, and two ends are respectively connected with two mounting seats.

[0006] Further, the two mounting seats between the lower part of hydraulic cylinder are equipped with guide rod, and the two ends of guide rod are respectively connected with the outside of two mounting seats by bolt.

[0007] Further, the reset spring is in compression state between two mounting seats.

[0008] Further, the diameter of arc slot is greater than or equal to the diameter of chain roller.

[0009] Compared with prior art, the utility model has the beneficial effects that:

[0010] 1, the utility model realizes the tightening of chain by the telescopic of hydraulic cylinder and drives grab, greatly shortens the operation time of chain tightening, reduces the labor intensity of worker;

[0011] 2, the utility model uses hand-operated hydraulic pump and hydraulic cylinder to realize the tightening of chain, simple structure, low cost, easy to operate and promote. BRIEF DESCRIPTION OF DRAWINGS

[0012] Fig. 1 It is the structural schematic diagram of the utility model;

[0013] Fig. 2 This is a schematic diagram of the gripping working structure of this utility model;

[0014] In the diagram: 1. Manual hydraulic pump; 2. Hydraulic cylinder; 3. Mounting base; 4. Grab; 5. Guide rod; 6. Return spring; 7. Baffle; 8. Slot; 9. Chain. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0016] like Figs. 1-2 As shown, a large-pitch chain installation and tightening device includes a manual hydraulic pump 1, a hydraulic cylinder 2, two mounting seats 3, two grippers 4, and a return spring 6. The manual hydraulic pump 1 is connected to the hydraulic cylinder 2 via an oil pipe. The two mounting seats 3 are respectively fixed to the tail end of the hydraulic cylinder 2 and the front end of the telescopic rod. A guide rod 5 is provided between the two mounting seats 3 below the hydraulic cylinder 2. The two ends of the guide rod 5 are respectively bolted to the outer side of the two mounting seats 3. The two grippers 4 are respectively fixed to the bottom surface of the two mounting seats 3, and an arc-shaped groove 7 is opened on the lower part of the opposite surface of the two grippers 4. The diameter of the arc-shaped groove 7 is greater than or equal to the diameter of the roller of the chain 8. The return spring 6 is sleeved on the hydraulic cylinder 2, and its two ends are respectively connected to the two mounting seats 3. The return spring 6 is in a compressed state.

[0017] The working process of this utility model:

[0018] In use, the steel profiles are bundled with chain 8, and the two ends of chain 8 are pulled. The two grabs 4 of this utility model are passed through the gaps at both ends of chain 8 respectively. The rollers at both ends of chain 8 are respectively locked in the arc-shaped grooves 7 on both sides. The hydraulic cylinder 2 is driven to retract by the manual hydraulic pump 1, which drives the mounting seat 3 at the telescopic end to move along the guide rod 5 to the other mounting seat 3, thereby driving the two grabs 4 to move closer and pulling the two ends of chain 8 closer to tighten chain 8.

[0019] When it is necessary to remove this device, the hydraulic cylinder 2 is depressurized by the manual hydraulic pump 1. After depressurization, the hydraulic cylinder 2 returns to its initial state under the action of the return spring 6. The mounting base 3 and the grabber 4 loosen the two ends of the chain, remove this device, and proceed with the next operation of tightening the chain 8.

Claims

1. A large-pitch chain installation tightening device characterized by comprising: Including manual hydraulic pump (1), hydraulic cylinder (2), two mounting seats (3), two grab (4) and reset spring (6), the manual hydraulic pump (1) is communicated with hydraulic cylinder (2) by oil pipe, the two mounting seats (3) are respectively fixed in the tail of hydraulic cylinder (2) and telescopic rod front end, the two grab (4) are respectively fixed on the bottom surface of two mounting seats (3), and the opposite surface lower part of two grab (4) is provided with arc clamping groove (7), the reset spring (6) is sleeved on the hydraulic cylinder (2), and both ends are connected with two mounting seats (3) respectively.

2. A large pitch chain tensioning device according to claim 1, wherein, The two mounting seats (3) between the lower hydraulic cylinder (2) are provided with guide rod (5), and the two ends of the guide rod (5) are connected with the outer sides of the two mounting seats (3) through bolts respectively.

3. A large pitch chain tensioning device according to claim 1, wherein, The reset spring (6) is in compression between the two mounting seats (3).

4. A large pitch chain tensioner as defined in claim 1, wherein, The diameter of the arc clamping groove (7) is greater than or equal to the diameter of the roller of the chain (8).

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