Hair prying trolley with sliding arm frame

Abstract

The utility model discloses a prying trolley with a sliding arm frame, which comprises a frame and a working arm frame arranged on the frame, and the frame is provided with an arm frame sliding device which is used for enabling the working arm frame to slide on the frame so as to increase the construction range of the working arm frame. According to the prying trolley with the sliding arm frame, through the arrangement of the arm frame sliding device, the operation range of single operation is enlarged, the construction efficiency of the same height and different depths is improved, and the prying trolley can be achieved only by pushing the working arm frame to slide back and forth through the single operation arm frame sliding device; compared with a traditional fixed arm support, pitching of the arm support and stretching of the arm support need to be adjusted, combined action adjustment is needed for each depth point, operation is complex, construction efficiency is low, and the arm support has the advantages of being wide in single-time construction range and high in construction efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of mining machinery technology, and in particular relates to a prying trolley. Background Technology

[0002] During underground mining operations and tunnel excavation, blasting loosens the rock, and the loose rocks on the roof and sides of the tunnel are extremely unstable and may fall at any time, posing a serious threat to personnel and equipment. Therefore, it is essential to remove these unstable loose rocks promptly to ensure operational safety. A rock-scraping trolley is a specialized piece of equipment for mechanized handling of loose rocks, and its promotion and application have attracted industry attention due to increasing emphasis on mine safety.

[0003] Currently, most plating trolleys use an articulated chassis and a fixed telescopic boom structure. While this structure offers advantages such as simplicity, good steering performance, and a simplified transmission system, it also presents some problems. The articulation points experience high stress and have a small stress area, resulting in poor frame stability. Even slight disruptions in boom movement can cause vertical movement at the articulation points, affecting the lifespan of wear-resistant components like the brass bushings. Furthermore, to ensure construction safety and overall vehicle stability, articulated plating trolleys typically require outriggers to be deployed before operation and again when changing locations after completion. This frequent outrigger deployment not only wastes time but also risks being deliberately skipped by some workers in pursuit of efficiency, significantly increasing construction risks.

[0004] Furthermore, the fixed telescopic boom structure has a limited working range under single-shift conditions, further affecting construction efficiency. Therefore, a prying trolley with good overall stability, a wide working range per shift, and high construction efficiency is needed to address the shortcomings of existing equipment. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the deficiencies and defects mentioned in the background art above, and to provide a prying trolley with a sliding boom that has good overall vehicle stability, a wide single-operation range and high construction efficiency.

[0006] To solve the above-mentioned technical problems, the technical solution proposed by this utility model is as follows:

[0007] A prying trolley with a sliding boom includes a frame and a working boom mounted on the frame. The frame is provided with a boom sliding device for sliding the working boom on the frame to increase the working boom's working range.

[0008] In the aforementioned prying trolley, preferably, the boom sliding device includes a boom slide rail mounted on the frame, a boom base connected to the working boom, and a sliding drive assembly for reciprocating sliding of the boom base along the boom slide rail. With this configuration, in close-range construction, the equipment retains the construction method of a traditional fixed boom, and uses the boom slide rail to push the boom from near to far, completing operations at the same construction height. This not only increases the construction distance but also reduces the additional time lost due to multi-joint boom adjustments. For long-distance work sites, the sliding boom, while retaining the original functions of the fixed boom, further increases the working distance through its sliding function, improving construction efficiency and applicability. Compared to fixed boom construction examples, under the same construction conditions, the sliding boom can increase the construction range of a single operation and reduce the time consumed by auxiliary construction in the construction process, while also reducing the time lost due to the reduced number of vehicle relocations caused by the increased working range.

[0009] In the aforementioned prying trolley, preferably, the boom slide rail has an I-shaped cross-section, and limiting blocks are provided above both ends of the boom slide rail to restrict the boom base from sliding out of the end of the boom slide rail. The I-shaped cross-section of the boom slide rail provides high rigidity and load-bearing capacity, effectively supporting the weight of the working boom and reducing deformation or damage caused by load. The limiting blocks above both ends of the slide rail effectively restrict the movement of the boom base at extreme positions, preventing the equipment from operating beyond its limits due to operational errors or accidental impacts.

[0010] In the aforementioned prying trolley, preferably, the sliding drive assembly includes a pulley base mounted below the boom base, rollers disposed on the pulley base and in the recesses on both sides of the boom rail, and a propulsion cylinder for pushing the rollers to slide. One end of the propulsion cylinder is connected to the frame via a cylinder pin, and a pin retainer is disposed beside the cylinder pin to restrict its rotation. The rollers significantly reduce sliding friction and improve sliding efficiency; this structure has high load-bearing capacity and stable guidance. The propulsion cylinder can precisely control the moving speed and position of the boom base, ensuring the smoothness and accuracy of the sliding process. The pin retainer effectively restricts the rotation and misalignment of the pin, enhancing the stability of the equipment.

[0011] In the aforementioned prying trolley, preferably, the boom sliding device further includes a rotary drive for horizontally swinging the boom left and right. The boom and boom base are connected via the rotary drive. A limiting member is provided above the boom base to restrict the boom's sway, and a limiting protrusion is provided at the bottom of the boom to cooperate with the limiting member for limiting. The boom achieves horizontal swaying left and right via the rotary drive, allowing the boom to quickly adjust its position in the horizontal direction, thus expanding the working range. The combined use of the limiting member and the limiting protrusion effectively limits the boom's sway amplitude. When the boom swings horizontally over a large range, it prevents the equipment from losing balance or being damaged due to excessive sway, ensuring that the boom moves within a predetermined safe range, reducing the risk of equipment damage due to operational errors or accidental impacts, and enhancing the reliability and safety of the equipment.

[0012] In the aforementioned prying trolley, preferably, the working boom includes a fixed boom base, a first arm, a second arm, a third telescopic drive component, a third arm, and a fourth arm connected in sequence, and further includes a first pitch drive component, a second pitch drive component, and a fourth pitch drive component. The fixed boom base is connected to the boom sliding device at its lower end. The two ends of the first pitch drive component are respectively connected to the first arm and the fixed boom base. The two ends of the second pitch drive component are respectively connected to the first arm and the third telescopic drive component. The two ends of the fourth pitch drive component are respectively connected to the third arm and the fourth arm. This configuration allows the working boom to flexibly adjust its posture in multiple directions, adapting to complex working environments. Through the coordinated action of multiple drive components, the working boom can achieve complex spatial movements, accurately locate target working points, and has a wide working range.

[0013] In the aforementioned prying trolley, preferably, the working boom further includes a crushing device connected to the fourth arm. The crushing device includes a breaker hammer, a fifth drive component for rotating the breaker hammer back and forth, and a sixth drive component for swinging the breaker hammer left and right. Both ends of the fifth and sixth drive components are connected to the fourth arm and the breaker hammer, respectively. This configuration allows the breaker hammer to flexibly adjust its angle and position, accurately locate the target material, quickly crush large rocks or loose stones, reduce operating time, and further improve construction efficiency.

[0014] In the aforementioned scraping trolley, preferably, the boom sliding device is positioned above the frame and near the front of the work area along the working direction. The cab is located on the upper side of the frame near the rear of the work area, and a counterweight is located at the rear of the frame. Because the frame is a single unit, and due to the front-mounted boom, rear-mounted cab, and rear-mounted counterweight layout, compared to traditional articulated scraping trolleys, it avoids the instability issues caused by significant vertical swaying of the front and rear frames at the articulation points. Therefore, it reduces the need for the structural arrangement of outriggers used in traditional articulated scraping trolleys to increase stability. Simultaneously, it reduces the time wasted on retractable outriggers during construction, saving auxiliary time. Furthermore, this outrigger-less structure allows for rapid relocation of the work site after construction without waiting for the outriggers to retract.

[0015] In the aforementioned prying trolley, preferably, the lower side of the cab is connected to the frame via a rotating pin for tilting the cab. This arrangement allows for quick release of space under the frame, facilitating inspection and maintenance of critical components such as the chassis, hydraulic system, and transmission system.

[0016] Preferably, in the aforementioned shoveling trolley, multiple steerable rubber tires are installed under the frame, and a bulldozer blade is installed at the front end of the frame. The rubber tires enhance the shoveling trolley's mobility, stability, and adaptability in underground mining and tunnel construction, while reducing maintenance costs and improving operational efficiency. The bulldozer blade is used to clear obstacles in the work area, enabling obstacle removal during movement.

[0017] Compared with the prior art, the advantages of this utility model are:

[0018] This utility model of a prying trolley with a sliding boom increases the working range of a single operation and improves the construction efficiency at different depths at the same height by setting up a boom sliding device. It can be achieved by simply operating the boom sliding device to move the working boom forward and backward. Compared with the traditional fixed boom, which requires adjusting both the boom's pitch and extension and requires coordinated adjustment at each depth point, making the operation complicated and the construction efficiency low, this model has the characteristics of a wide single construction range and high construction efficiency. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1This is a schematic diagram of the overall structure of the prying trolley with a sliding boom, as shown in the embodiment.

[0021] Figure 2 This is a schematic diagram of a scraper trolley without a working boom, as shown in the embodiment.

[0022] Figure 3 for Figure 2 Enlarged view of point A;

[0023] Figure 4 This is a partial schematic diagram of the sliding drive component structure in an embodiment;

[0024] Figure 5 This is a schematic diagram of the working boom structure for an embodiment.

[0025] Legend

[0026] 1. Frame; 2. Boom; 3. Boom sliding device; 4. Cab; 5. Counterweight; 6. Rubber tires; 7. Bulldozer blade; 8. Hood; 11. Fixed boom base; 12. First boom; 13. Second boom; 14. Third boom; 15. Fourth boom; 16. First pitch drive; 17. Second pitch drive; 18. Third telescopic drive; 19. Fourth pitch drive; 21. Slewing drive; 22. Limiting stand; 23. Limiting protrusion; 24. Hydraulic breaker; 25. Fifth drive; 26. Sixth drive; 27. Connecting rod; 28. Connecting rod seat; 29. ​​Hammer seat; 31. Boom slide rail; 32. Boom base; 33. Limiting block; 34. Push cylinder; 35. Pulley base; 36. Roller; 41. Rotary pin; 341. Cylinder pin; 342. Pin clamp. Detailed Implementation

[0027] To facilitate understanding of this utility model, it will be described more comprehensively and in detail below with reference to the accompanying drawings and preferred embodiments. However, the scope of protection of this utility model is not limited to the following specific embodiments.

[0028] It should be noted that when a component is described as being "fixed to, attached to, connected to or connected to" another component, it can be directly fixed to, attached to, connected to or connected to the other component, or it can be indirectly fixed to, attached to, connected to or connected to the other component through other intermediate connectors.

[0029] Unless otherwise defined, all technical terms used herein have the same meaning as commonly understood by those skilled in the art. The technical terms used herein are for the purpose of describing particular embodiments only and are not intended to limit the scope of protection of this invention.

[0030] Unless otherwise specified, all raw materials, reagents, instruments and equipment used in this invention can be purchased from the market or prepared by existing methods.

[0031] Example:

[0032] like Figures 1 to 5 As shown, the prying trolley with sliding boom in this embodiment includes a frame 1 and a working boom 2 mounted on the frame 1. The frame 1 is provided with a boom sliding device 3 for sliding the working boom 2 on the frame 1 to increase the working range of the working boom 2.

[0033] In this embodiment, the boom sliding device 3 includes a boom slide rail 31 mounted on the frame 1, a boom base 32 connected to the working boom 2, and a sliding drive assembly for reciprocating sliding of the boom base 32 along the boom slide rail 31.

[0034] In this embodiment, as Figure 2 and Figure 3 As shown, the boom slide rail 31 has an I-shaped cross section. Limiting blocks 33 are provided above both ends of the boom slide rail 31 to limit the boom base 32 from sliding out of the end of the boom slide rail 31. The sliding drive assembly includes a pulley base 35 installed below the boom base 32, rollers 36 set on the pulley base 35 and in the recessed areas on both sides of the boom slide rail 31, and a propulsion cylinder 34 for pushing the rollers 36 to slide. One end of the propulsion cylinder 34 is connected to the frame 1 through a cylinder pin 341. A pin retainer 342 is provided next to the cylinder pin 341 to limit the rotation of the cylinder pin 341.

[0035] In this embodiment, the pulley base 35 is an elongated plate, fixed to the lower part of the boom base 32 by bolts. The pulley base 35 is connected to the bearing and roller 36 via a pulley pin. The pulley pin is interference-fitted to the pulley base 35 and the bearing. The roller 36 is mounted on the bearing and can rotate with the bearing. Four sets of pulleys can be provided. Figure 4 As shown, this is to ensure its load-bearing capacity and stability.

[0036] In this embodiment, the boom sliding device 3 further includes a rotary drive 21 for horizontally swinging the boom 2 left and right. The boom 2 is connected to the boom base 32 via the rotary drive 21. A limiting member 22 for limiting the swing of the boom 2 is provided above the boom base 32, and a limiting protrusion 23 for limiting the boom 2 in conjunction with the limiting member 22 is provided at the bottom of the boom 2. The limiting member 22 includes a limiting plate and a limiting rib.

[0037] In this embodiment, as Figure 5As shown, the boom 2 includes a fixed boom base 11, a first arm 12, a second arm 13, a third telescopic drive 18, a third arm 14, and a fourth arm 15 connected in sequence, and also includes a first pitch drive 16, a second pitch drive 17, and a fourth pitch drive 19. The fixed boom base 11 is connected to the boom sliding device 3 at its lower end. The first pitch drive 16 is connected at both ends to the first arm 12 and the fixed boom base 11, respectively. The second pitch drive 17 is connected at both ends to the first arm 12 and the third telescopic drive 18, respectively. The fourth pitch drive 19 is connected at both ends to the third arm 14 and the fourth arm 15, respectively. The fixed boom base 11 is connected to the boom base 32 at its lower end via a rotary drive 21.

[0038] In this embodiment, the boom 2 further includes a crushing device connected to the fourth arm 15. The crushing device includes a breaker hammer 24, a fifth drive member 25 for rotating the breaker hammer 24 back and forth, and a sixth drive member 26 for swinging the breaker hammer 24 left and right. Both ends of the fifth drive member 25 and the sixth drive member 26 are connected to the fourth arm 15 and the breaker hammer 24, respectively. The fifth drive member 25 is hinged to the fourth arm 15. The fifth drive member 25, the connecting rod 27, and the connecting rod seat 28 form a hinged linkage mechanism to realize the back and forth rotation of the breaker hammer 24. The sixth drive member 26 is fixed below the connecting rod seat 28. The breaker hammer 24 is connected to the sixth drive member 26 through the hammer seat 29. The breaker hammer 24 swings left and right through the sixth drive member 26. In this embodiment, the drive members are all hydraulic cylinder driven. In other embodiments, they can also be pneumatic cylinder driven, etc.

[0039] In this embodiment, the boom sliding device 3 is positioned above the frame 1 along the working direction and near the front of the work area. The cab 4 is located on the upper side of the frame 1 near the rear of the work area, and a counterweight 5 is located at the rear of the frame 1. The prying trolley chassis is an integral chassis, which, compared to the traditional articulated prying trolley chassis, avoids problems such as poor stability caused by large vertical swaying of the front and rear frames at the articulation points.

[0040] In this embodiment, the lower end of the cab 4 is connected to the frame 1 via a rotating pin 41 for flipping the cab 4. The cab 4 is mounted on the engine cover 8 and is hinged to the engine cover 8 via the rotating pin 41, allowing the cab to flip around the hinge point.

[0041] In this embodiment, multiple (up to four) steerable rubber tires 6 are provided under the frame 1.

[0042] In this embodiment, a bulldozer blade 7 is provided at the front end of the chassis 1.

[0043] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A prying trolley with a sliding boom, comprising a frame (1) and a working boom (2) mounted on the frame (1), characterized in that, The frame (1) is provided with a boom sliding device (3) for sliding the boom (2) on the frame (1) to increase the working range of the boom (2).

2. The prying trolley according to claim 1, characterized in that, The boom sliding device (3) includes a boom slide rail (31) disposed on the vehicle frame (1), a boom base (32) connected to the working boom (2), and a sliding drive assembly for reciprocating the boom base (32) along the boom slide rail (31).

3. The prying trolley according to claim 2, characterized in that, The boom slide rail (31) has an I-shaped cross section, and limit blocks (33) are provided above both ends of the boom slide rail (31) to limit the boom base (32) from sliding out of the end of the boom slide rail (31).

4. The prying trolley according to claim 2, characterized in that, The sliding drive assembly includes a pulley base (35) installed below the boom base (32), rollers (36) disposed on the pulley base (35) and disposed in the recesses on both sides of the boom slide rail (31), and a propulsion cylinder (34) for pushing the rollers (36) to slide. One end of the propulsion cylinder (34) is connected to the frame (1) through a cylinder pin (341), and a pin retainer (342) is provided next to the cylinder pin (341) for limiting the rotation of the cylinder pin (341).

5. The prying trolley according to claim 2, characterized in that, The boom sliding device (3) further includes a rotary drive (21) for swinging the boom (2) horizontally left and right. The boom (2) is connected to the boom base (32) through the rotary drive (21). A limiting member (22) for limiting the swing of the boom (2) is provided above the boom base (32). A limiting protrusion (23) for limiting the swing of the boom (2) is provided at the bottom of the boom (2).

6. The prying trolley according to claim 1, characterized in that, The boom (2) includes a fixed boom seat (11), a first arm (12), a second arm (13), a third telescopic drive (18), a third arm (14), and a fourth arm (15) connected in sequence, and also includes a first pitch drive (16), a second pitch drive (17), and a fourth pitch drive (19). The fixed boom seat (11) is connected to the boom sliding device (3) at the bottom. The first pitch drive (16) is connected to the first arm (12) and the fixed boom seat (11) at both ends, the second pitch drive (17) is connected to the first arm (12) and the third telescopic drive (18) at both ends, and the fourth pitch drive (19) is connected to the third arm (14) and the fourth arm (15) at both ends.

7. The prying trolley according to claim 6, characterized in that, The working boom (2) also includes a crushing device connected to the fourth arm (15). The crushing device includes a breaker hammer (24), a fifth drive member (25) for rotating the breaker hammer (24) back and forth, and a sixth drive member (26) for swinging the breaker hammer (24) left and right. Both ends of the fifth drive member (25) and the sixth drive member (26) are connected to the fourth arm (15) and the breaker hammer (24), respectively.

8. The skid trolley according to any one of claims 1-7, characterized in that, The boom sliding device (3) is located above the frame (1) and close to the front side of the operation along the working direction. The cab (4) is located on the side of the frame (1) close to the rear side of the operation. The counterweight (5) is located at the rear end of the frame (1).

9. The prying trolley according to claim 8, characterized in that, The lower side of the cab (4) is connected to the frame (1) by a rotating pin (41) for flipping the cab (4).

10. The prying trolley according to claim 1, characterized in that, Multiple steerable rubber tires (6) are provided under the frame (1), and a bulldozer blade (7) is provided at the front end of the frame (1).

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