A return rope wheel structure for use on a low-set anchor rod trolley propeller

Abstract

The application discloses a return rope wheel structure used on a low anchor rod trolley propeller, which comprises a beam body and a rope wheel, a rock drill is slidably installed on the beam body, an installation groove is arranged in the beam body, a telescopic propelling oil cylinder is installed in the installation groove, a supporting plate is fixedly installed on the telescopic propelling oil cylinder, the supporting plate is located below the rock drill, the rope wheel is rotatably installed on the supporting plate, a pull rope is installed on the rope wheel, one end of the pull rope is fixedly connected with the beam body, and the other end of the pull rope is fixedly connected with the rock drill and passes through the rope wheel; a protective baffle for protecting the rope wheel is detachably installed on the supporting plate; and at least two positioning mechanisms which cooperate with each other are arranged between the protective baffle and the supporting plate. The application has the beneficial effects that the rope wheel and the supporting plate are located below the rock drill, the rope wheel and the supporting plate can be made as small as possible, the rope wheel and the supporting plate are installed on the telescopic propelling oil cylinder, the overall size of the propeller is effectively reduced, the propeller can be adapted to a low roadway, and the protective baffle and the anti-vibration assembly can protect the rope wheel.

Description

Technical Field

[0001] This application relates to the field of anchor bolt trolley technology, and more particularly to a return rope sheave structure used on a low-profile anchor bolt trolley pusher. Background Technology

[0002] As a primary tool for tunnel support, the bolt trolley is used to drill holes in the rock wall and insert bolts for support after tunnel excavation. Typically, the bolt trolley needs to be driven into the tunnel, and then a rock drill is moved to the vicinity of the rock wall using a thruster. However, in existing technology, the thrusters are relatively large, and the limited space in low-ceilinged tunnels may restrict their movement.

[0003] Currently, propellers primarily control the rock drill's forward and backward movement via sheaves and ropes. The sheaves include a front sheave and a rear sheave. The front sheave is typically installed at the front of the rock drill to pull it forward, while the rear sheave is usually installed at the rear. After drilling is complete, the return sheave can be used to return the rock drill to its starting position. However, in low-ceilinged tunnels with limited space, placing the rear sheave directly behind the rock drill would undoubtedly increase the overall size of the propeller. Furthermore, existing rear sheaves are generally quite large, occupying significant space within the propeller and reducing the rock drill's travel range. Therefore, it is necessary to improve the existing return sheave structure. Utility Model Content

[0004] One objective of this application is to provide a return rope sheave structure for use on a low-profile anchor trolley pusher that can solve at least one of the defects in the aforementioned background art.

[0005] To achieve at least one of the above objectives, the technical solution adopted in this application is as follows: a return rope wheel structure for use on a low-profile anchor trolley pusher, comprising a beam and a rope wheel, a rock drill slidably mounted on the beam, an installation groove provided inside the beam, a retractable propulsion cylinder installed in the installation groove, a support plate fixedly mounted on the telescopic section of the propulsion cylinder, the support plate being located below the rock drill, the rope wheel being rotatably mounted on the support plate, a pull rope mounted on the rope wheel, one end of the pull rope being fixedly connected to the beam, and the other end being fixedly connected to the rock drill after passing over the rope wheel; a protective baffle for protecting the rope wheel is detachably mounted on the support plate; at least two mutually cooperating positioning mechanisms are provided between the protective baffle and the support plate.

[0006] With the above setup, when the propulsion cylinder retracts, the rope pulley moves synchronously with the extension section of the propulsion cylinder. The rope pulley pulls the pull rope, and since the position of the beam remains unchanged, the pull rope can pull the rock drill backward. The rope pulley and the support plate are both located below the rock drill, which can effectively reduce the overall size of the propeller and make the propeller adaptable to low tunnels. The protective baffle can improve the safety of the rope pulley. When installing the protective baffle, it can be quickly aligned with the support plate through the positioning mechanism, thereby improving the installation efficiency of the protective baffle.

[0007] Preferably, the positioning mechanism includes a positioning rod and a positioning groove. The positioning rod is disposed on the end face of the protective baffle, and the positioning groove is disposed on the end face of the support plate. The protective baffle cooperates with the support plate to form a mounting cavity, and the rope pulley is rotatably mounted in the mounting cavity. With this configuration, the protective baffle can be quickly installed on the support plate through the positioning of the positioning rod and the positioning groove. During installation, simply inserting the positioning rod into the corresponding positioning groove is sufficient to align the protective baffle with the support plate.

[0008] Preferably, the positioning rod has a through hole, the positioning groove has a threaded hole, and a screw that mates with the threaded hole is installed in the through hole. This configuration allows the protective baffle to be fixedly installed on the support plate via the threaded engagement of the screw and the threaded hole. When the protective baffle needs to be disassembled, simply removing the screw completes the disassembly.

[0009] Preferably, the pull rope includes a steel wire rope. This configuration further improves the durability of the pull rope, reduces the frequency of replacement, and lowers maintenance costs.

[0010] Preferably, the end face of the support plate is vertically provided with a mounting shaft, the rope pulley is rotatably mounted on the mounting shaft, and a vibration damping component is provided between the rope pulley and the mounting shaft. The protective baffle is provided with a mounting hole for inserting the mounting shaft. This configuration, by mounting the rope pulley with the mounting shaft, ensures that the rope pulley can rotate around the mounting base. The vibration damping component prevents the rope pulley from shaking and also prevents the rope pulley from directly contacting the mounting shaft, thus avoiding wear on the rope pulley. After the protective baffle is installed, the mounting shaft extends into the mounting hole, which can limit the mounting shaft and prevent it from bending under external force.

[0011] Preferably, the vibration damping assembly includes a first sleeve and a second sleeve. The first sleeve is fitted onto the outside of the mounting shaft, and the second sleeve is fitted onto the outside of the first sleeve. The pulley is fitted onto the outside of the second sleeve. This arrangement allows the first and second sleeves to cover the entire inner hole of the pulley, providing a continuous and complete support surface for the mounting shaft and preventing direct collision between the pulley and the shaft. When the pulley is subjected to a large impact force, the first and second sleeves can absorb the impact, preventing damage to the pulley and the mounting shaft. When either the first or second sleeve wears out, it can be replaced individually, effectively reducing maintenance costs.

[0012] Preferably, the support plate is provided with a groove, which is concentrically arranged with the mounting shaft, and the second sleeve extends into the groove. This arrangement allows the groove to define the position of the second sleeve, preventing it from shifting under the pressure of the pulley.

[0013] Preferably, the vibration damping component is provided with a first washer and a second washer. The upper part of the vibration damping component presses the first washer tightly against the protective baffle, and the lower part of the vibration damping component presses the second washer tightly against the support plate. This arrangement, through the buffering provided by the first and second washers, prevents the first and second sleeves from excessively compressing the support plate and protective baffle under the pushing of the sheave, ensuring that the ends of the first and second sleeves are not damaged by rigid impact.

[0014] Preferably, slide rails are provided on both sides of the beam, and a slider that cooperates with the slide rails is detachably installed on the lower part of the rock drill. This configuration ensures that the rock drill can slide stably on the beam through the sliding cooperation between the slide rails and the slider. When the rock drill malfunctions, it is not necessary to remove the slider; the rock drill can be disassembled and repaired separately.

[0015] Preferably, a connecting plate for sealing the mounting groove is installed at the end of the beam, the connecting plate preventing the slider from disengaging from the slide rail. This configuration limits the movement distance of the slider via the connecting plate, and when the slider reaches the edge of the beam, the connecting plate prevents the slider from moving further.

[0016] Compared with the prior art, the beneficial effects of this application are as follows: Both the sheave and the support plate are located below the rock drill. The sheave and the support plate can be made as small as possible and then installed on the propulsion cylinder, which can effectively reduce the overall size of the propeller and make it suitable for low tunnels. The protective baffle can improve the safety of the sheave. When installing the protective baffle, it can be quickly aligned with the support plate through the positioning mechanism, thereby improving the installation efficiency of the protective baffle.

[0017] The vibration damping assembly includes a first sleeve and a second sleeve. When fitted together, the first and second sleeves cover the entire inner bore of the pulley, providing a continuous and complete support surface for the mounting shaft. Furthermore, it improves the overall rigidity of the pulley. When the pulley is subjected to significant impact, the first and second sleeves absorb the impact force, preventing damage to the pulley and mounting shaft. This invention offers high stability while saving space, ensuring the propeller can operate in low-ceilinged tunnels. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the return rope sheave in this application.

[0019] Figure 2 This is a schematic diagram of the installation structure of the beam and the propulsion cylinder in this application.

[0020] Figure 3 This is a schematic diagram showing the fit between the protective shell and the tray in this application.

[0021] In the diagram: 1. Beam; 11. Mounting groove; 12. Slide rail; 13. Connecting plate; 100. Propulsion cylinder; 2. Support plate; 21. Positioning groove; 22. Mounting shaft; 23. Groove; 200. Pull rope; 3. Rope wheel; 300. Screw; 301. First washer; 302. Second washer; 4. Protective baffle; 41. Positioning rod; 42. Mounting hole; 5. Rock drill; 51. Slider; 6. Vibration damping component; 61. First sleeve; 62. Second sleeve. Detailed Implementation

[0022] The present application will be further described below with reference to specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0023] In the description of this application, it should be noted that the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., which indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and should not be construed as limiting the specific protection scope of this application.

[0024] It should be noted that the terms "first," "second," etc., in the specification and claims of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0025] The terms “comprising” and “having”, and any variations thereof, in the specification and claims of this application are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or device.

[0026] One aspect of this application provides a return rope sheave structure for use on a low-profile anchor trolley pusher, one preferred embodiment of which is, for example... Figure 1 and Figure 2 As shown, the device includes a beam 1 and a sheave 3. A rock drill 5 is slidably mounted on the beam 1. An installation groove 11 is provided inside the beam 1, and a retractable propulsion cylinder 100 is installed in the installation groove 11. A support plate 2 is fixedly installed on the telescopic section of the propulsion cylinder 100, and the support plate 2 is located below the rock drill 5. The sheave 3 is rotatably mounted on the support plate 2, and a pull rope 200 is installed on the sheave 3. One end of the pull rope 200 is fixedly connected to the main body, and the other end passes around the sheave 3 and is fixedly connected to the rock drill 5. When the propulsion cylinder 100 retracts, the sheave 3 moves synchronously with the telescopic section of the propulsion cylinder 100, pulling the pull rope 200. Since the position of the beam 1 remains unchanged, the pull rope 200 can pull the rock drill 5 backward. The sheave 3 and the support plate 2 are both located below the rock drill 5, which effectively reduces the overall size of the propulsion device, allowing it to adapt to low-ceilinged tunnels. Furthermore, such as Figure 1 As shown, a protective baffle 4 for protecting the rope pulley 3 is detachably installed on the support plate 2. The protective baffle 4 can limit the position of the rope pulley 3 to prevent it from wobbling up and down during rotation, and can also improve the safety of the rope pulley 3. In addition, at least two positioning mechanisms are provided between the protective baffle 4 and the support plate 2. The protective baffle 4 can be quickly aligned with the support plate 2 through the positioning mechanisms during installation, thereby improving the installation efficiency of the protective baffle 4.

[0027] It should be noted that the number of positioning mechanisms can be adjusted by those skilled in the art according to their own needs. In addition to positioning, the positioning mechanism can also connect the support plate 2 and the protective baffle 4. The more positioning mechanisms there are, the better the positioning effect and connection stability.

[0028] Specifically, such as Figure 1 and Figure 3As shown, the positioning mechanism includes a positioning rod 41 and a positioning groove 21. The positioning rod 41 is located on the end face of the protective baffle 4, and the positioning groove 21 is located on the end face of the support plate 2. The protective baffle 4 can be quickly installed onto the support plate 2 through the positioning of the positioning rod 41 and the positioning groove 21. When installing the protective baffle 4, simply insert the positioning rod 41 into the corresponding positioning groove 21 to align the protective baffle 4 with the support plate 2. After the protective baffle 4 is installed, an installation cavity is formed between the protective baffle 4 and the support plate 2, and the pulley 3 is rotated and installed in the installation cavity to ensure that the protective baffle 4 can cooperate with the support plate 2 to protect the pulley 3.

[0029] Furthermore, such as Figure 3 As shown, in order to further improve the installation stability of the protective baffle 4, a through hole aligned with the positioning groove 21 is provided on the positioning rod 41. A threaded hole is provided in the positioning groove 21, and a screw 300 that is threadedly engaged with the threaded hole is installed in the through hole. When the positioning rod 41 is inserted into the positioning groove 21, the screw 300 can be turned with a tool to fix the protective baffle 4 to the support plate 2 through the threaded engagement between the screw 300 and the threaded hole. When it is necessary to disassemble the protective baffle 4, the screw 300 can be removed to complete the disassembly.

[0030] Additionally, the pull rope 200 in this application includes, but is not limited to, steel wire rope. Steel wire rope further improves the durability of the pull rope 200, reduces the frequency of replacement, and lowers maintenance costs. Of course, those skilled in the art can also use other ropes for the pull rope 200, as long as they possess high strength and wear resistance.

[0031] It should be noted that as a traction component, the pulley 3 may vibrate or shift when the rope 200 applies pressure to it. The pulley 3 is relatively expensive, and damage to it will significantly increase maintenance costs.

[0032] Therefore, in this embodiment, as Figure 3 As shown, a mounting shaft 22 is vertically mounted on the end face of the support plate 2. The rope pulley 3 is rotatably mounted on the mounting shaft 22, and an anti-vibration component 6 is provided between the rope pulley 3 and the mounting shaft 22. The rope pulley 3 is mounted via the mounting shaft 22 to ensure that it can rotate around the mounting base. The anti-vibration component 6 prevents the rope pulley 3 from shaking and also prevents the rope pulley 3 from directly contacting the mounting shaft 22, thus avoiding wear on the rope pulley 3. This effectively improves the safety of the rope pulley 3 and reduces the frequency of its replacement.

[0033] As a supplement, the protective baffle 4 is also provided with a mounting hole 42 that matches the size of the mounting shaft 22. After the protective baffle 4 is installed, the mounting shaft 22 extends into the mounting hole 42. The mounting shaft 22 can be limited by the mounting hole 42 to prevent the mounting shaft 22 from bending under external force.

[0034] Specifically, such as Figure 3 As shown, the vibration damping component 6 includes a first sleeve 61 and a second sleeve 62. The first sleeve 61 is fitted onto the outside of the mounting shaft 22, and the second sleeve 62 is fitted onto the outside of the first sleeve 61. The pulley 3 is fitted onto the outside of the second sleeve 62. The interlocking of the first sleeve 61 and the second sleeve 62 covers the entire inner hole of the pulley, providing a continuous and complete support surface for the mounting shaft 22, preventing the two rigid parts, the pulley 3 and the mounting shaft 22, from colliding. When the pulley 3 is subjected to a large impact force, the first sleeve 61 and the second sleeve 62 can absorb the impact force, preventing damage to the pulley 3 and the mounting shaft 22. When the first sleeve 61 or the second sleeve 62 is worn, it can be replaced individually, effectively reducing maintenance costs.

[0035] Furthermore, such as Figure 3 As shown, the support plate 2 is provided with a groove 23, which is concentrically arranged with the mounting shaft 22. The second sleeve 62 extends into the groove 23 to ensure that the axes of the first sleeve 61 and the second sleeve 62 coincide with the axis of the rope wheel 3. The groove 23 can limit the position of the second sleeve 62 to prevent the second sleeve 62 from shifting under the pressure of the rope wheel 3.

[0036] In this embodiment, as Figure 3 As shown, the vibration damping component 6 is provided with a first washer 301 and a second washer 302. The upper part of the vibration damping component 6 presses the first washer tightly against the protective baffle 4, and the lower part of the vibration damping component 6 presses the second washer 302 tightly against the support plate 2. The first washer 301 and the second washer 302 can provide buffering to prevent the first sleeve 61 and the second sleeve 62 from being excessively squeezed against the support plate 2 and the protective baffle 4 under the pushing of the rope wheel 3, and to ensure that the ends of the first sleeve 61 and the second sleeve 62 are not damaged by rigid impact.

[0037] It should be noted that the materials of the first washer ring 301 and the second washer ring 302 include, but are not limited to, rubber, soft plastic, etc. Any material that has anti-slip, wear-resistant properties and can buffer pressure can meet the requirements of this application.

[0038] In this embodiment, as Figure 1 and Figure 2 As shown, slide rails 12 are provided on both sides of the beam 1. The lower part of the rock drill 5 is detachably equipped with a slider 51 that cooperates with the slide rails 12. The sliding cooperation between the slide rails 12 and the slider 51 can ensure that the rock drill 5 can slide stably on the beam 1. When the rock drill 5 malfunctions, it is not necessary to remove the slider 51. The rock drill 5 can be disassembled and repaired separately.

[0039] Furthermore, such as Figure 1As shown, a connecting plate 13 for sealing the mounting groove 11 is installed at the end of the beam 1. The connecting plate 13 is used to prevent the slider 51 from disengaging from the slide rail 12. The moving distance of the slider 51 can be limited by the connecting plate 13. When the slider 51 reaches the edge of the beam 1, the connecting plate can prevent the slider 51 from moving further.

[0040] The basic principles, main features, and advantages of this application have been described above. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this application. Various changes and modifications can be made to this application without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection claimed by this application is defined by the appended claims and their equivalents.

Claims

1. A return rope pulley structure for use on a low-profile anchor bolt trolley pusher, characterized in that, The device includes a beam (1) and a rope wheel (3). A rock drill (5) is slidably mounted on the beam (1). An installation groove (11) is provided inside the beam (1). A telescopic propulsion cylinder (100) is installed in the installation groove (11). A support plate (2) is fixedly installed on the telescopic section of the propulsion cylinder (100). The support plate (2) is located below the rock drill (5). The rope wheel (3) is rotatably mounted on the support plate (2). A pull rope (200) is installed on the rope wheel (3). One end of the pull rope (200) is fixedly connected to the beam (1), and the other end is fixedly connected to the rock drill (5) after passing over the rope wheel (3). A protective baffle (4) for protecting the rope wheel (3) is detachably mounted on the support plate (2). At least two mutually cooperating positioning mechanisms are provided between the protective baffle (4) and the support plate (2).

2. The return rope pulley structure for use on a low-profile anchor trolley propeller as described in claim 1, characterized in that, The positioning mechanism includes a positioning rod (41) and a positioning groove (21). The positioning rod (41) is disposed on the end face of the protective baffle (4), and the positioning groove (21) is disposed on the end face of the support plate (2). The protective baffle (4) cooperates with the support plate (2) to form an installation cavity, and the rope wheel (3) is rotatably installed in the installation cavity.

3. The return rope pulley structure for use on a low-profile anchor bolt trolley propeller as described in claim 2, characterized in that, The positioning rod (41) is provided with a through hole, the positioning groove (21) is provided with a threaded hole, and a screw (300) that mates with the threaded hole is installed in the through hole.

4. The return rope pulley structure for use on a low-profile anchor trolley propeller as described in claim 1, characterized in that, The pull rope (200) includes a steel wire rope.

5. The return rope pulley structure for use on a low-profile anchor trolley propeller as described in claim 1, characterized in that, The end face of the pallet (2) is vertically provided with an installation shaft (22), the rope wheel (3) is rotatably installed on the installation shaft (22), an anti-vibration component (6) is provided between the rope wheel (3) and the installation shaft (22), and the protective baffle (4) is provided with an installation hole (42) for inserting the installation shaft (22).

6. The return rope pulley structure for use on a low-profile anchor trolley propeller as described in claim 5, characterized in that, The vibration damping component (6) includes a first sleeve (61) and a second sleeve (62). The first sleeve (61) is sleeved on the outside of the mounting shaft (22), and the second sleeve (62) is sleeved on the outside of the first sleeve (61). The rope wheel (3) is sleeved on the outside of the second sleeve (62).

7. The return rope pulley structure for use on a low-profile anchor trolley propeller as described in claim 6, characterized in that, The tray (2) is provided with a groove (23), which is concentrically arranged with the mounting shaft (22), and the second sleeve (62) extends into the groove (23).

8. The return rope pulley structure for use on a low-profile anchor trolley propeller as described in claim 6, characterized in that, The vibration damping component (6) is provided with a first washer (301) and a second washer (302). The upper part of the vibration damping component (6) presses the first washer (301) tightly against the protective baffle (4), and the lower part of the vibration damping component (6) presses the second washer (302) tightly against the support plate (2).

9. The return rope pulley structure for use on a low-profile anchor trolley propeller as described in claim 1, characterized in that, The beam (1) is provided with slide rails (12) on both sides, and the rock drill (5) is detachably installed with a slider (51) that cooperates with the slide rails (12) at the bottom.

10. The return rope pulley structure for use on a low-profile anchor trolley propeller as described in claim 9, characterized in that, The beam (1) is equipped with a connecting plate (13) for sealing the mounting groove (11) at its end. The connecting plate (13) is used to prevent the slider (51) from disengaging from the slide rail (12).

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