Quick-change assembly for underground carry-scraper

By designing a quick-change component for downhole loaders, and utilizing the cooperation of locking cylinders and locking pins, the attachments can be quickly loaded and unloaded. This solves the problems of long loading and unloading time and low efficiency in the replacement of attachments for traditional downhole loaders, and improves the ease of operation and safety.

CN224133825UActive Publication Date: 2026-04-17JINCHUAN GRP MACHINERY MFG +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JINCHUAN GRP MACHINERY MFG
Filing Date
2025-05-14
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

Traditional underground loader attachments are time-consuming to replace, inefficient, and inconvenient to operate, posing safety hazards.

Method used

Design a quick-change component, including a quick-change mechanism, a support frame, a locking cylinder, and a locking pin. The position and angle of the quick-change mechanism are adjusted by the boom and connecting rod of the loader, and the locking cylinder drives the locking pin to achieve quick loading and unloading of attachments.

Benefits of technology

It enables quick replacement of attachments, improves ease of operation and efficiency, and reduces safety hazards.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of engineering mechanical equipment, and discloses a quick-change component for an underground carry-scraper, which comprises an accessory and a quick-change mechanism, the quick-change mechanism is mounted on the carry-scraper and comprises a support frame and connecting frames positioned on two sides of the support frame, the support frame is provided with a locking oil cylinder, two sides of the locking oil cylinder are provided with locking pin seats, and the locking pin seats are connected with the accessory. Locking pins penetrate through the locking pin bases in a sliding mode, and the locking oil cylinder is used for driving the locking pins on the two sides to stretch out and draw back. The connecting frame comprises two sets of fixing plates arranged in parallel at intervals, connecting shafts are arranged on the upper portions of the fixing plates on the two sides, and limiting holes are oppositely formed in the lower portions of the fixing plates on the two sides and used for allowing locking pins to penetrate. Hooks are arranged on the rear side of the accessory, annular locks are arranged below the hooks, two sets of hooks and two sets of annular locks are arranged at intervals, the hooks are used for being hung to the connecting shaft, and the annular locks are used for penetrating through the locking pins. According to the utility model, the carry-scraper is utilized to regulate and control the quick change mechanism, so that the quick assembly and disassembly of different accessories can be realized, and the change efficiency and the operation convenience are higher.
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Description

Technical Field

[0001] This utility model belongs to the field of engineering machinery and equipment technology, and specifically relates to a quick-change component for underground shovels and loaders. Background Technology

[0002] Trackless loaders are commonly used equipment in mining operations for loading and transporting ore and waste rock. Traditional trackless loaders are typically equipped with a single bucket, offering limited functionality and making them ill-suited to the complex and ever-changing underground working environment. In actual operation, loaders require changing different attachments, such as buckets and forks, depending on the specific working conditions. Traditional changing methods usually require manual operation, which is time-consuming, inefficient, and inconvenient in the confined space of an underground mine, posing safety hazards. Therefore, we propose a quick-change assembly for underground loaders. Utility Model Content

[0003] The purpose of this invention is to provide a quick-change component for downhole loader, which aims to solve the problems of long time consumption, low efficiency and inconvenience of manual attachment replacement in the above-mentioned background art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A quick-change assembly for an underground loader includes attachments and a quick-change mechanism. The quick-change mechanism is installed on the loader. The quick-change mechanism includes a support frame and connecting frames located on both sides of the support frame. The support frame is provided with a locking cylinder. Locking pin seats are provided on both sides of the locking cylinder. Locking pins slide through the locking pin seats. The locking cylinder is used to drive the locking pins on both sides to extend and retract.

[0006] The connecting frame includes two sets of fixing plates arranged in parallel and spaced apart. The upper part of the two fixing plates is provided with a connecting shaft, and the lower part is provided with limiting holes. The limiting holes are used for the locking pin to pass through.

[0007] The attachment is provided with a hook on the rear side, and a ring lock is provided below the hook. Two sets of hooks and ring locks are provided at intervals. The hook is used to hang on the connecting shaft, and the ring lock is used to insert a locking pin.

[0008] Furthermore, the support frame includes a support rod and a support box located below the support rod. The locking cylinder and the locking pin seat are both disposed in the support box. Two sets of support plates are arranged parallel to each other between the support rod and the support box.

[0009] Furthermore, a first pin is provided between the support plates, which is used to connect the boom of the loader. The fixing plate is triangular in shape, and a second pin is provided between the fixing plates. The second pin is located on one side of the limiting hole and is used to connect the connecting rod of the loader.

[0010] Furthermore, the attachments include bucket attachments and forklift attachments.

[0011] Compared with the shortcomings and deficiencies of existing technologies, this utility model has the following beneficial effects:

[0012] This utility model provides a quick-change component for an underground loader. A quick-change mechanism is set between the loader and the attachments. The attachments are equipped with hooks and ring locks. Correspondingly, the quick-change mechanism is equipped with a connecting shaft that aligns with the hooks. A locking cylinder is installed in the support box. The locking cylinder drives the locking pin to cooperate with the limiting hole to fix the ring lock. Compared with manual attachment replacement, by adjusting the position and angle of the quick-change mechanism using the boom and connecting rod of the loader, and controlling the locking cylinder, different attachments can be quickly loaded and unloaded, greatly improving the attachment replacement efficiency and ease of operation. Attached Figure Description

[0013] Figure 1 This is a structural schematic diagram of the quick-change mechanism and fork attachment in this utility model.

[0014] Figure 2 This is a structural schematic diagram of the quick-change mechanism and bucket attachment in this utility model.

[0015] Figure 3 This is a schematic diagram of the internal structure of the support box of the quick-change mechanism in this utility model.

[0016] In the diagram: 100, quick-change mechanism; 110, support frame; 111, support rod; 112, support box; 113, support plate; 114, first pin; 115, locking cylinder; 116, locking pin seat; 117, locking pin; 120, connecting frame; 121, fixing plate; 122, connecting shaft; 123, second pin; 124, limiting hole. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0018] Reference Figure 1 A quick-change component for an underground loader includes a quick-change mechanism 100 and an attachment 200. The quick-change mechanism 100 is installed at the working front end of the loader, and the attachment 200 is detachably connected to the quick-change mechanism 100, which facilitates the loader to quickly change the attachment 200 according to the actual working conditions.

[0019] Reference Figure 1The quick-change mechanism 100 includes a support frame 110, with connecting frames 120 symmetrically arranged on both sides of the support frame 110 (see reference). Figure 2 The support frame 110 includes a support rod 111 horizontally disposed on the upper part of the two connecting frames 120, and a support box 112 disposed between the lower parts of the two connecting frames 120. Two sets of support plates 113 are arranged parallel to each other between the support rod 111 and the support box 112. The upper part of the support plate 113 is fixedly sleeved on the support rod 111, and the lower part is fixedly connected to the top surface of the support box 112. A first pin 114 is provided between the two sets of support plates 113. The two sets of support plates 113 help to improve the overall support performance of the support frame 110. (Refer to...) Figure 3 The support box 112 is equipped with a locking cylinder 115. Two sets of locking pin seats 116 are provided on both sides of the locking cylinder 115. Locking pins 117 are inserted through the locking pin seats 116. The locking cylinder 115 is used to synchronously drive the locking pins 117 on both sides to extend and retract.

[0020] Reference Figure 1 and Figure 3 The two connecting frames 120 have the same structure. Taking one connecting frame 120 as an example, the following description is provided. The connecting frame 120 includes two sets of parallel and spaced fixing plates 121. The fixing plates 121 are approximately triangular in shape. The fixing plate 121 adjacent to the support frame 110 is fixedly connected to the support rod 111 and the support box 112 of the support frame 110, respectively. The upper part of the two fixing plates 121 is provided with a connecting shaft 122, which is perpendicularly connected to the two fixing plates 121. The lower part of the two fixing plates 121 is provided with a second pin 123, which is perpendicularly connected to the two fixing plates 121. The lower part of the two fixing plates 121 is respectively provided with a limiting hole 124. The limiting hole 124 is located on one side of the second pin 123 on the fixing plate 121. The limiting hole 124 is used for the locking pin 117 to pass through.

[0021] Reference Figure 2 The attachment 200 has a hook 201 on its upper rear side, and a ring lock 202 below the hook 201. Both the hook 201 and the ring lock 202 have two sets. The hook 201 corresponds to the connecting shaft 122 on the connecting frame 120 and is used to hang on the connecting shaft 122. The ring lock 202 corresponds to the limiting hole 124 and is located between the two limiting holes 124. It is fixed by a locking pin 117, thereby installing the attachment 200 onto the quick-change mechanism 100. The attachment 200 includes at least a bucket and forks.

[0022] The working process of this utility model:

[0023] The boom of the loader is connected to the first pin 114 of the support frame 110, and the connecting rod of the loader is connected to the second pin 123 of the connecting frames 120 on both sides. The loader can adjust the position and angle of the attachment 200 by using the quick change mechanism 100 through the cooperation of the boom and connecting rod, so as to carry out underground operations.

[0024] When the loader disassembles the installed bucket attachment 200, the locking cylinder 115 drives the locking pins 117 on both sides to retract into the locking pin seat 116. At this time, the ring lock 202 of the bucket attachment 200 loses its limit. The loader drives the quick-change mechanism 100 to move through the boom and connecting rod, so that the hook 201 of the bucket attachment 200 is separated from the connecting shaft 122 of the quick-change mechanism 100, thereby realizing the rapid separation of the quick-change mechanism 100 from the bucket attachment 200.

[0025] When installing the fork attachment 200 on the loader, the loader adjusts the position and angle of the quick-change mechanism 100 through the boom and connecting rod, so that the connecting shaft 122 of the connecting frame 120 on both sides passes into the hook 201 of the fork attachment 200. The quick-change mechanism 100 is adjusted again so that the annular lock 202 of the fork attachment 200 is located between the two limit holes 124. The locking cylinder 115 is activated, which drives the locking pins 117 on both sides to move through the limit holes 124 and the annular lock 202, thereby quickly installing the fork attachment 200 onto the quick-change mechanism 100.

[0026] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A quick-change assembly for a downhole shovel, comprising an implement, characterized in that, It also includes a quick-change mechanism, which is installed on the loader. The quick-change mechanism includes a support frame and connecting frames located on both sides of the support frame. The support frame is equipped with a locking cylinder. Locking pin seats are provided on both sides of the locking cylinder. Locking pins slide through the locking pin seats. The locking cylinder is used to drive the locking pins on both sides to extend and retract. The connecting frame includes two sets of fixing plates arranged in parallel and spaced apart. The upper part of the two fixing plates is provided with a connecting shaft, and the lower part is provided with limiting holes. The limiting holes are used for the locking pin to pass through. The attachment is provided with a hook on the rear side, and a ring lock is provided below the hook. Two sets of hooks and ring locks are provided at intervals. The hook is used to hang on the connecting shaft, and the ring lock is used to insert a locking pin.

2. The quick change assembly of claim 1, wherein, The support frame includes a support rod and a support box located below the support rod. The locking cylinder and the locking pin seat are both located inside the support box. Two sets of support plates are arranged parallel to each other between the support rod and the support box.

3. The quick change assembly of claim 2, wherein, A first pin is provided between the support plates, which is used to connect the boom of the loader. The fixing plate is triangular in shape, and a second pin is provided between the fixing plates. The second pin is located on one side of the limiting hole and is used to connect the connecting rod of the loader.

4. The quick change assembly of claim 1, wherein, The attachments include bucket attachments and forklift attachments.