一种综掘机液压前探梁装置及综掘机

Abstract

本申请公开了一种综掘机液压前探梁装置及综掘机，其中装置包括综掘机机身、支护构件、升降油缸和折叠油缸，支护构件上方设置有伸缩组件，伸缩组件包括至少两根主支撑方管，间隔设置在支护构件上，且垂直支护构件的延伸方向设置；多个前伸油缸，其分别设置在主支撑方管内，且一端与主支撑方管铰接；四根次级支撑方管，其一端嵌套于主支撑方管内并与前伸油缸连接，另一端向远离主支撑方管的方向延伸设置。本申请通过在支护构件上方采用主支撑方管以及次级支撑方管的嵌套结构，增强了支护结构的抗弯能力与承载强度。同时，本方案还通过前伸油缸驱动次级支撑方管伸缩，可灵活调整支撑覆盖范围，适配不同跨度的巷道顶板，满足大断面巷道的支护需求。

Claims

1. A hydraulic front boom device (100) of a roadheader, comprising a roadheader body (101), a support member (104), a lifting cylinder (102) and a folding cylinder (103), characterized in that, A telescopic assembly (105) is provided above the support member (104), the telescopic assembly (105) comprising: At least two main support square tubes (1051) are provided at intervals on the support member (104) and are provided perpendicular to the extension direction of the support member (104). Multiple forward-extending hydraulic cylinders are respectively disposed within the main support square tube (1051), with one end hinged to the main support square tube (1051); and Four secondary support square tubes (1052) have one end nested inside the main support square tube (1051) and connected to the forward extension cylinder, and the other end extends away from the main support square tube (1051).

2. The hydraulic front boom device (100) of a shearer according to claim 1, characterized in that, The forward extension cylinder is equipped with a stroke sensor for monitoring its stroke.

3. The hydraulic front boom device (100) of a face conveyor as claimed in claim 2, characterized in that The lifting cylinder (102), folding cylinder (103) and extending cylinder are integrated with pressure sensors for monitoring the supporting force; The device also includes a control system electrically connected to the stroke sensor and the pressure sensor, the control system being configured to display the status in real time based on sensor data and to issue an alarm when limits are exceeded.

4. The hydraulic front boom device (100) of the face conveyor as claimed in claim 3, characterized in that, The control system is a PLC control system and includes a human-machine interface for real-time display of support force and stroke status.

5. The hydraulic front boom device (100) of a plow shearer according to claim 3 or 4, characterized in that, The control system is configured to automatically trigger an alarm and lock the forward extension cylinder when it detects that the supporting force exceeds a preset threshold or the stroke exceeds a preset threshold.

6. The hydraulic front boom device (100) of any one of claims 1-4, wherein, The support member (104) is provided with a side wing (1053) on each side, and the side wing (1053) is connected to two secondary support square tubes (1052) respectively.

7. The hydraulic front boom device (100) of any one of claims 1-4, wherein, Four main support square tubes (1051) are installed above the support member (104), and two main support square tubes (1051) are arranged in a parallel abutting configuration.

8. The hydraulic front boom device (100) of the face conveyor as claimed in claim 7, characterized in that, A support frame (106) is provided above the support member (104), and the telescopic component (105) is fixed on the support frame (106); The support frame (106) has at least four through holes for the main support square tube (1051) to extend out from the support frame.

9. The hydraulic front boom device (100) of any one of claims 1-4, wherein, The hydraulic lines of the lifting cylinder (102), folding cylinder (103) and extending cylinder are all designed with dual circuits and redundant locking valve devices are added.

10. A continuous miner characterized by, It includes the hydraulic front probe beam device (100) for a roadheader as described in any one of claims 1-9.

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