Guide rail protection device for drill jumbo
By designing a semi-enclosed protective structure with fixed steel plates and angle steel sheaths on the rock drilling rig guide rail, the problem of severe guide rail wear was solved, achieving efficient protection of the guide rail and simplified maintenance, thus improving the stability and safety of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JINCHUAN GROUP NICKEL COBALT CO LTD
- Filing Date
- 2025-06-13
- Publication Date
- 2026-04-17
AI Technical Summary
The guide rails of rock drilling rigs wear out severely in harsh environments, and traditional sealing covers offer limited protection, making disassembly and maintenance difficult and affecting construction progress.
A rock drilling rig guide rail protection device is designed, which adopts a semi-enclosed protective structure composed of fixed steel plates and angle steel sheaths. It is connected by high-strength bolts to form a rigid barrier, and welded connections to improve stability and convenience.
Significantly reduces guide rail wear, increases service life and accuracy, simplifies maintenance, reduces costs, and enhances equipment stability and safety.
Smart Images

Figure CN224135003U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of engineering machinery protection technology, and in particular to a rock drilling rig guide rail protection device. Background Technology
[0002] When rock drilling rigs operate in harsh environments such as mines and tunnels, their guide rails are constantly exposed to rock cuttings, mud, and high-frequency vibrations, leading to accelerated wear, decreased accuracy, and shortened service life. Traditional sealing covers offer limited protection and are difficult to disassemble and maintain; regular manual cleaning is time-consuming and labor-intensive, impacting construction progress. Therefore, it is necessary to further optimize the guide rail protection device for rock drilling rigs to provide comprehensive and real-time protection for the guide rails, ensuring the long-term stable operation of the rock drilling rig under harsh working conditions. Utility Model Content
[0003] To address the aforementioned technical problems, this utility model provides a rock drilling rig guide rail protection device.
[0004] To achieve the above objectives, the technical solution of this utility model is as follows:
[0005] A rock drilling rig guide rail protection device includes fixed steel plates respectively installed on the upper and lower sides of the guide rail. The fixed steel plates are connected by connectors. On the side of the fixed steel plate corresponding to the guide rail, angle steel protective skins are respectively installed on the left and right edges, so that a semi-enclosed protective structure is formed on the guide rail.
[0006] Furthermore, the connecting component is a connecting bolt, with its upper and lower ends respectively connected to the corresponding fixing steel plate.
[0007] Furthermore, the connecting bolts are high-strength bolts, and the nuts, when tightened, form a rigid connection resistant to vibration and impact.
[0008] Furthermore, the angle steel sheath is made of 40-type angle steel.
[0009] Furthermore, the fixing steel plate and the angle steel sheath are welded together.
[0010] The beneficial effects of this utility model are:
[0011] 1. This utility model uses a semi-enclosed protective structure constructed by fixing steel plates and angle steel skin on the upper and lower sides. It fits tightly with the guide rail to form a rigid physical barrier, which effectively blocks the direct impact and intrusion of rock cuttings, mud and gravel, significantly reduces the risk of guide rail wear and deformation, extends service life, and improves the straightness and flatness of the guide rail, which helps to ensure the accuracy of rock drilling and better control the hole diameter deviation.
[0012] 2. Connecting bolts are used to connect the upper and lower fixed steel plates, providing reliable fastening force and ensuring a stable connection between the protective device and the guide rail. At the same time, it makes the installation and disassembly of the device more convenient and quick, facilitates maintenance and replacement, and improves work efficiency.
[0013] 3. The use of high-strength bolts as connectors significantly enhances the vibration and impact resistance of the protective device, ensuring that the protective device remains firmly fixed to the guide rail even under high-frequency vibration and harsh working conditions of the rock drilling rig, thereby improving the stability and safety of equipment operation.
[0014] 4. The 40-type angle steel protective skin provides a better fit to the trolley guide rail, offering superior protection and effectively reducing the amount of rock debris and other foreign objects stuck in the protective groove. This reduces the frequency of equipment maintenance or replacement, saving labor and material costs.
[0015] 5. The fixed steel plate and angle steel sheath are welded together, which facilitates the rapid movement and on-site maintenance of the device in complex work sites such as mines, enhances the flexibility and safety of construction, and provides a durable and stable physical protective barrier for the guide rail. Attached Figure Description
[0016] Figure 1 This is a perspective view of the device of this utility model.
[0017] Figure 2 This is a front view of the device of this utility model.
[0018] Figure 3 This is a side view of the device of this utility model.
[0019] Figure 4 This is a top view of the device of this utility model.
[0020] In the attached diagram: 1. Fixing steel plate; 2. Connecting bolts; 3. Angle steel sheath. Detailed Implementation
[0021] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.
[0022] like Figures 1-4 As shown, a rock drilling rig guide rail protection device includes fixed steel plates 1 respectively set on the upper and lower sides of the guide rail. The fixed steel plates 1 are connected to each other by connectors. On the side of the fixed steel plate 1 corresponding to the guide rail, angle steel skins 3 are respectively set on the left and right edges, so that a semi-enclosed protective structure is formed on the guide rail.
[0023] The connecting component can be a connecting bolt 2, whose upper and lower ends are respectively connected to the corresponding fixed steel plate 1. In order to further enhance the vibration and impact resistance of the device and improve the fastening effect, the connecting bolt 2 can be a high-strength bolt.
[0024] Depending on the specific dimensions and protection requirements of the rock drilling rig guide rail, the angle steel sheath 3 can be made of different types of angle steel. For example, 30 or 40 type angle steel can be used. To obtain better wrapping and protection, and to reduce the amount of rock cuttings and other foreign objects stuck in the protective groove, 40 type angle steel is preferred, as this type of angle steel provides a better fit to the rig guide rail and offers better protection.
[0025] The fixed steel plate 1 and the angle steel sheath 3 are connected by welding. The welding operation is flexible and can be adjusted according to the specific shape and position of the weld, which is convenient and quick.
[0026] In use, the two welded protective components are installed in pairs, one on the upper side and one on the lower side of the rock drilling rig guide rail, and then fastened together with connectors, ensuring that the semi-enclosed groove portion of the angle steel protective skin 3 is firmly attached to the guide rail. This protective device has a simple structure, few parts, and is easy to manufacture and assemble. By providing a solid physical barrier, it effectively protects the guide rail surface from direct impact and abrasion by rock cuttings, mud, and other foreign objects, thereby extending the service life of the guide rail. At the same time, reduced guide rail wear significantly decreases the frequency of maintenance and replacement, resulting in substantial savings in labor and material costs. Therefore, this device has excellent practicality.
Claims
1. A jumbo guide rail protection device, characterised in that: It includes fixed steel plates (1) respectively set on the upper and lower sides of the guide rail. The fixed steel plates (1) are connected to each other by connectors. On the side of the fixed steel plate (1) corresponding to the guide rail, angle steel skin (3) is set on the left and right edges respectively, so that a semi-enclosed protective structure is formed on the guide rail.
2. A jumbo guide rail protection device according to claim 1, characterised in that: The connecting component is a connecting bolt (2), whose upper and lower ends are respectively connected to the corresponding fixing steel plate (1).
3. A jumbo guide rail protection device according to claim 2, characterised in that: The connecting bolt (2) is a high-strength bolt, and after the nut is tightened, a rigid connection resistant to vibration and impact is formed.
4. A jumbo guide rail protection device according to claim 1, characterised in that: The angle steel sheath (3) is a 40 type angle steel.
5. A jumbo guide rail protection device according to claim 1, characterised in that: The fixed steel plate (1) and the angle steel sheath (3) are welded together.