Swing seat limiting assembly of drill jumbo
By designing the swing seat limit assembly of the rock drill trolley and using the structure of arcuate arms and fixed pins, the problem of the rock drill trolley lacking swing seat limiting device is solved, and the adjustment and limiting of the swing seat angle is realized, and stability and versatility are improved.
Patent Information
- Application Number
- CN202422082473.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-27
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-08-27
AI Technical Summary
The existing rock drilling trolley lacks a swing seat limiting device, which causes the swing seat to swing angle during driving, which easily damages the oil cylinder. The existing limiting device does not have an angle adjustment function, which reduces the versatility of the limiting device.
A swing seat limit assembly for a rock drill trolley is designed, including a mounting table, a lifting arm, a limit assembly and a curved arm. Through the multi-stage telescopic hollow structure of the arc arm and the adjustment of the fixed pin, the angle adjustment and limit of the swing seat are achieved, and the versatility of the limit assembly is improved.
By setting the limit assembly, the swing seat is avoided from swinging angle when the vehicle is driving, the stability of the vehicle and swing seat is improved, and the versatility and support strength of the limit assembly are enhanced.
Smart Images
Figure CN222909945U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of rock drilling jumbo, in particular to a swing seat limiting component of a rock drilling jumbo. Background Technique
[0002] A rock drilling jumbo is a rock drilling equipment used in tunneling and underground engineering construction by the drill and blast method. It can move and support multiple rock drills to carry out drilling operations simultaneously. The working mechanism mainly consists of a thruster, a drill boom, a slewing mechanism, and a translation mechanism. Rock drilling jumbos can be divided into drift jumbos, mining jumbos, bolt jumbos, and open-pit rock drilling jumbos, etc.; according to the traveling mechanism of the jumbo, it can be divided into rail-wheel, tire, and crawler types.
[0003] The existing rock drilling jumbos still have the following problems when in use:
[0004] 1. When the rock drilling jumbo is traveling, in order to avoid large swing angles when the swing seat swings and easily damage the oil cylinder, it is necessary to install a swing seat limiting device on the vehicle frame to ensure the safety and stability of the vehicle. Most of the existing rock drilling jumbos do not have a limiting device for the swing seat.
[0005] 2. When the limiting device uses a support frame for limiting, it does not have the function of angle adjustment. It can only limit the swing seat at one angle and is not convenient to adjust, reducing the versatility of the limiting device. Summary of the Utility Model
[0006] In view of the above problems, the present invention provides a swing seat limiting component of a rock drilling jumbo, which has the advantages of improving the stability of the vehicle and the swing seat, and improving the versatility of the limiting component.
[0007] The technical solution it adopts is that the utility model includes a swing seat main body placed on the rock drilling jumbo. The swing seat main body includes a mounting table fixed on the top of the rock drilling jumbo. Two symmetrically distributed lifting arms are arranged on the mounting table, and limiting components are respectively arranged on both sides of the mounting table.
[0008] The limiting component includes mounting plates fixed on both sides of the mounting table. One side of the mounting plate is rotatably connected with a support arm. A support column is fixed at the end of the support arm away from the mounting plate. An arc arm located above the support arm is fixed on the mounting plate. The arc arm is a multi-stage telescopic hollow structure. The arc arm includes a short arm fixedly connected with the support arm and a telescopic arm fixedly connected with the mounting plate. The short arm slides in the telescopic arm. A plurality of equally spaced jacks are penetrated through both side walls of the arc arm, and fixing pins are inserted into the jacks.
[0009] Preferably, the support column and the support arm are hollow structures and are interconnected, an oil cylinder is coaxially fixed inside the support column, a first oil bag is coaxially arranged inside the oil cylinder, a piston rod in contact with the first oil bag is coaxially arranged inside the oil cylinder, a handle is coaxially fixed to one end of the piston rod passing through the support column, and the piston rod is threadedly connected to the support column;
[0010] The outer wall of the support column is provided with a plurality of equally spaced sliding grooves, a buffer block is slidably connected in the sliding groove, the inner wall of the oil cylinder is provided with a plurality of receiving grooves matching the sliding grooves, an extrusion rod penetrating into the interior of the oil cylinder is fixed on one side of the buffer block, an extrusion strip located in the receiving groove is fixed on the end of the extrusion rod away from the buffer block, and the extrusion strip is in contact with the first oil bag.
[0011] Preferably, a plurality of equally spaced limit grooves are provided on the two inner walls of the telescopic arm away from the insertion hole, a connecting pipe is provided in the short arm, a second oil bag is coaxially provided in the connecting pipe, the connecting pipe is connected to the oil cylinder through a pipeline, the first oil bag and the second oil bag are connected through a pipeline, through grooves are provided on both sides of the connecting pipe, a limit plate is slidably connected in the through groove, a plurality of equally spaced limit blocks are fixed on the limit plate, the limit blocks match the limit grooves, and the side of the limit plate away from the limit block is fixedly connected to the second oil bag.
[0012] Preferably, the end of the buffer block away from the extrusion rod is made of rubber.
[0013] Preferably, the short arm is located on a side of the support arm close to the support column.
[0014] Compared with the prior art, the beneficial effects of the utility model are:
[0015] 1. Through the setting of the limit assembly, when the lifting arm falls, it will contact the limit assembly after it drops to a certain height, so as to prevent the swing seat from swinging too much when the vehicle is driving, causing driving accidents, etc.
[0016] 2. Fix the mounting plates on both sides of the swing seat by means of arc-shaped arms, sockets, fixing pins and mounting plates, adjust the telescopic amount of the short arm in the telescopic arm and the telescopic amount between the telescopic arms to adjust the angle of the support arm. After the adjustment, insert the fixing pins into the corresponding sockets. Ideally, the more fixing pins are inserted, the stronger the support of the arc-shaped arm. This arrangement makes it easy to disassemble and assemble the limit assembly on the basis of angle adjustment.
[0017] 3. Through the settings of the limit groove, connecting pipe, second oil bladder and limit plate, etc., when the lifting arm comes into direct contact with the buffer block, the first oil bladder is squeezed, and the hydraulic oil inside it enters the second oil bladder through the pipeline. The second oil bladder is fully unfolded, and the limit plate is displaced by the extrusion of the second oil bladder. Multiple limit blocks are engaged with the limit groove, further improving the support strength of the arc-shaped arm. Moreover, the stronger the extrusion force of the lifting arm, the higher the engagement degree between the limit block and the limit groove. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 is a three-dimensional schematic diagram of the swing seat in the present utility model.
[0019] Figure 2 is a three-dimensional schematic diagram of the limit component in the present utility model.
[0020] Figure 3 is a three-dimensional cross-sectional view of the limit component in the present utility model.
[0021] Figure 4 is in the present utility model Figure 3 is a schematic diagram of the enlarged structure at A in
[0022] Figure 5 is a schematic diagram of the connecting pipe and its connecting parts in the present utility model.
[0023] Explanation of the reference numerals in the schematic diagram:
[0024] 1. Swing seat main body; 2. Installation table; 3. Lifting arm; 4. Installation plate; 5. Support arm; 6. Support column; 7. Arc-shaped arm; 8. Short arm; 9. Telescopic arm; 10. Jack; 11. Oil cylinder; 12. First oil bladder; 13. Piston rod; 14. Handle; 15. Buffer block; 16. Extrusion rod; 17. Extrusion strip; 18. Limit groove; 19. Connecting pipe; 20. Second oil bladder; 21. Limit plate; 22. Limit block. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.
[0026] By Figures 1 to 4Provided, including a swing seat body 1 placed on a rock drilling jumbo, the swing seat body 1 includes a mounting table 2 fixed to the top of the rock drilling jumbo, two symmetrically distributed lifting arms 3 are arranged on the mounting table 2, and limiting components are respectively arranged on both sides of the mounting table 2. When the lifting arms 3 fall, after the lifting arms 3 descend to a certain height, they will contact the limiting components, preventing the swing seat from swinging too much during vehicle driving and causing traffic accidents and other situations;
[0027] Considering that when the existing limiting components use the form of support frames for limiting, they do not have the function of angle adjustment. For the swing seat, they can only limit one angle, which is not convenient for adjustment and reduces the versatility of the limiting components. Further supplementing the structure of the limiting components is that the limiting components include mounting plates 4 fixed to both sides of the mounting table 2. In this embodiment, the mounting plates 4 are installed on both sides of the swing seat through multiple groups of bolts. One side of the mounting plate 4 is rotatably connected with a support arm 5, and a support column 6 is fixed to the end of the support arm 5 away from the mounting plate 4. The side surface of the lifting arm 3 directly contacts the support column 6, and the support column 6 and the support arm 5 limit and support the lifting arm 3. An arc-shaped arm 7 is fixed on the mounting plate 4 above the support arm 5. The arc-shaped arm 7 is a multi-stage telescopic hollow structure. It should be noted that the arc-shaped arm 7 not only enables the limiting components to have the effect of angle adjustment but also further improves the support strength of the support arm 5. The arc-shaped arm 7 includes a short arm 8 fixedly connected to the support arm 5 and a telescopic arm 9 fixedly connected to the mounting plate 4. It should be noted that the telescopic arm 9 is arranged as a multi-stage sleeve. In this embodiment, the telescopic arm 9 is composed of two sets of sleeves with the same radian. The short arm 8 slides in the telescopic arm 9. A plurality of equally spaced jacks 10 are penetrated through both side walls of the arc-shaped arm 7, and fixing pins are inserted into the jacks 10. Through the settings of the arc-shaped arm 7, the jacks 10, the fixing pins, and the mounting plate 4, etc., the mounting plate 4 is fixed to both sides of the swing seat. By adjusting the telescopic amount of the short arm 8 in the telescopic arm 9 and the telescopic amount between the telescopic arms 9, the angle of the support arm 5 is adjusted. After the adjustment is completed, the fixing pins are inserted into the corresponding jacks 10. Ideally, the more fixing pins are inserted, the stronger the support of the arc-shaped arm 7. This setting makes the adjustment components easy to disassemble and assemble the limiting components on the basis of angle adjustment.
[0028] Reference Figures 2 to 5As shown, considering that when the lifting arm 3 contacts the support column 6, the support column 6 and the lifting arm 3 are in hard contact. After multiple uses, there will be certain damage to the contact surfaces of the two. To strengthen the support strength of the arc-shaped arm 7, the support column 6 and the support arm 5 are of hollow structure and communicate with each other. An oil cylinder 11 is coaxially fixed inside the support column 6. A first oil bladder 12 is coaxially arranged inside the oil cylinder 11. A piston rod 13 in contact with the first oil bladder 12 is coaxially arranged inside the oil cylinder 11. One end of the piston rod 13 passing through the support column 6 is coaxially fixed with a handle 14. The piston rod 13 is threadedly connected to the support column 6. By adjusting the piston rod 13, the tightness state of the first oil bladder 12 can be adjusted. A plurality of equally spaced chutes are penetrated and opened on the outer wall of the support column 6. A buffer block 15 is slidably connected inside the chute. A plurality of storage grooves matching the chutes are opened on the inner wall of the oil cylinder 11. One side of the buffer block 15 is fixed with a pressing rod 16 penetrating into the interior of the oil cylinder 11. One end of the pressing rod 16 away from the buffer block 15 is fixed with a pressing strip 17 located in the storage groove. The pressing strip 17 contacts the first oil bladder 12. It should be noted that a rubber pad is arranged on the outer wall of the support column 6. Through the settings of the oil cylinder 11, the piston rod 13, the pressing rod 16, the pressing strip 17, etc., after the lifting arm 3 descends and contacts the buffer block 15, the buffer block 15 and the lifting arm 3 are in elastic contact. The oil bladder and the pressing strip 17 inside it will generate certain elastic protection. After multi-angle adjustment, the cylindrical adjustment column can be applicable to the support of the lifting arm 3, and there is no need to separately adjust the support column 6. At the same time, it also avoids the damage to the support column 6 and the lifting arm 3 caused by the hard support when the two contact each other.
[0029] Reference Figures 2 to 5As shown, at the same time, it is found in actual use that there is a certain deviation in the punching accuracy of the jack 10, which will affect the support strength of multiple fixing pins for the arc-shaped arm 7 to a certain extent. A plurality of equally spaced limiting grooves 18 are formed on the two inner walls of the telescopic arm 9 away from the jack 10. A connecting pipe 19 is arranged in the short arm 8. A second oil bladder 20 is coaxially arranged in the connecting pipe 19. The connecting pipe 19 is connected to the oil cylinder 11 through a pipeline. The first oil bladder 12 and the second oil bladder 20 are connected through a pipeline. It should be noted that hydraulic oil is provided in both the first oil bladder 12 and the second oil bladder 20 and their connected pipelines. When the lifting arm 3 does not directly contact the buffer block 15, the second oil bladder 20 is not fully expanded. Through grooves are respectively formed on both sides of the connecting pipe 19. A limiting plate 21 is slidably connected in the through groove. A plurality of equally spaced limiting blocks 22 are fixed on the limiting plate 21. The limiting blocks 22 are matched with the limiting grooves 18. The side of the limiting plate 21 away from the limiting blocks 22 is fixedly connected to the second oil bladder 20. Through the settings of the limiting grooves 18, the connecting pipe 19, the second oil bladder 20 and the limiting plate 21, after the lifting arm 3 directly contacts the buffer block 15, the first oil bladder 12 is squeezed, and the hydraulic oil inside it enters the second oil bladder 20 through the pipeline. The second oil bladder 20 is fully expanded. The limiting plate 21 generates displacement under the extrusion of the second oil bladder 20, and a plurality of limiting blocks 22 are engaged with the limiting grooves 18, further improving the support strength of the arc-shaped arm 7, and the stronger the extrusion force of the lifting arm 3, the higher the engagement degree of the limiting blocks 22 with the limiting grooves 18.
[0030] What is further supplemented to the buffer block 15 is that the end of the buffer block 15 away from the extrusion rod 16 is made of rubber.
[0031] In order to make the support strength of the arc-shaped arm 7 for the support arm 5 higher, the short arm 8 is located on the side of the support arm 5 close to the support column 6.
[0032] When the utility model is in use:
[0033] First, fix the mounting plate 4 on both sides of the swing seat, and adjust the telescopic amount of the short arm 8 in the telescopic arm 9 and the telescopic amount between the telescopic arms 9 to adjust the angle of the support arm 5;
[0034] Then, after the adjustment is completed, insert the fixing pins into the corresponding jacks 10. In an ideal state, the more fixing pins are inserted, the stronger the support of the arc-shaped arm 7;
[0035] Secondly, after the lifting arm 3 descends and contacts the buffer block 15, the buffer block 15 and the lifting arm 3 are in elastic contact. The first oil bladder 12 is squeezed, and the hydraulic oil inside it enters the second oil bladder 20 through the pipeline. The second oil bladder 20 is fully expanded, and the limiting plate 21 is displaced by the extrusion of the second oil bladder 20. Multiple limiting blocks 22 are engaged with the limiting grooves 18, further improving the support strength of the arc-shaped arm 7. Moreover, the stronger the extrusion force of the lifting arm 3, the higher the engagement degree between the limiting blocks 22 and the limiting grooves 18;
[0036] Finally, when the lifting arm 3 disengages from the support column 6, the hydraulic oil in the second oil bladder 20 flows back into the first oil bladder 12, and the limiting blocks 22 are disengaged from the limiting grooves 18.
[0037] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A swing seat limit assembly for a rock drilling trolley, comprising a swing seat body (1) placed on the rock drilling trolley, characterized in that: The swing seat body (1) comprises a mounting platform (2) fixed on the top of the rock drilling trolley, two symmetrically distributed lifting arms (3) are arranged on the mounting platform (2), and limit position components are respectively arranged on both sides of the mounting platform (2); The limiting assembly comprises a mounting plate (4) fixed on both sides of the mounting platform (2); one side of the mounting plate (4) is rotatably connected to a support arm (5); one end of the support arm (5) away from the mounting plate (4) is fixed to a support column (6); an arc-shaped arm (7) located above the support arm (5) is fixed on the mounting plate (4); the arc-shaped arm (7) is a multi-stage telescopic hollow structure; the arc-shaped arm (7) comprises a short arm (8) fixedly connected to the support arm (5) and a telescopic arm (9) fixedly connected to the mounting plate (4); the short arm (8) slides in the telescopic arm (9); a plurality of equally spaced insertion holes (10) are provided through the two side walls of the arc-shaped arm (7); a fixing pin is inserted into the insertion hole (10).
2. A swing seat limit assembly for a rock drilling trolley according to claim 1, characterized in that: The support column (6) and the support arm (5) are hollow structures and are interconnected. An oil cylinder (11) is coaxially fixed inside the support column (6). A first oil bag (12) is coaxially arranged inside the oil cylinder (11). A piston rod (13) in contact with the first oil bag (12) is coaxially arranged inside the oil cylinder (11). A handle (14) is coaxially fixed to one end of the piston rod (13) that passes through the support column (6). The piston rod (13) is threadedly connected to the support column (6). The outer wall of the support column (6) is provided with a plurality of equally spaced sliding grooves, a buffer block (15) is slidably connected in the sliding groove, the inner wall of the oil cylinder (11) is provided with a plurality of receiving grooves matching the sliding grooves, a squeezing rod (16) penetrating into the oil cylinder (11) is fixed on one side of the buffer block (15), a squeezing strip (17) located in the receiving groove is fixed on one end of the squeezing rod (16) away from the buffer block (15), and the squeezing strip (17) is in contact with the first oil bag (12).
3. The swing seat limit assembly of a rock drilling trolley according to claim 2, characterized in that: A plurality of equally spaced limiting grooves (18) are provided on two inner walls of the telescopic arm (9) away from the insertion hole (10); a connecting pipe (19) is provided inside the short arm (8); a second oil bag (20) is coaxially provided inside the connecting pipe (19); the connecting pipe (19) is connected to the oil cylinder (11) through a pipeline; the first oil bag (12) and the second oil bag (20) are connected through a pipeline; through grooves are provided on both sides of the connecting pipe (19); a limiting plate (21) is slidably connected in the through groove; a plurality of equally spaced limiting blocks (22) are fixed on the limiting plate (21); the limiting blocks (22) match the limiting grooves (18); and a side of the limiting plate (21) away from the limiting blocks (22) is fixedly connected to the second oil bag (20).
4. The swing seat limit assembly of a rock drilling trolley according to claim 3, characterized in that: The end of the buffer block (15) away from the extrusion rod (16) is made of rubber.
5. The swing seat limit assembly of a rock drilling trolley according to claim 4, characterized in that: The short arm (8) is located on a side of the support arm (5) close to the support column (6).