Rapid bolt fastening device based on track surface
By designing a fast bolt fastening device based on track surfaces, using the combination of walking trolley and work bench, combining working motor and bolt screwing unit, the automatic screwing and tightening of bolts is achieved, solving the problem of low bolt tightening work efficiency in the track engineering reservoir area, and improving the degree of automation and work efficiency.
Patent Information
- Application Number
- CN202421554286.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-03
- Publication Date
- 2025-05-06
- Estimated Expiration
- 2034-07-03
AI Technical Summary
In the rail engineering reservoir area, the tightening work of fixing bolts is difficult to operate due to limited space and large number of bolts, which is low in installation efficiency, labor-consuming and time-consuming, which affects the progress of the project and increases costs.
A bolt fastening device based on track surface is designed, including a walking car and a work bench car. The work bench car is equipped with a bolt screwing unit driven by a working motor. Through the cooperation of the Z-shaped press rod and the pulling spring, the bolts are automatically screwed and tightened.
The device can automatically move on the track surface and complete the tightening work of the bolts, avoiding the time-consuming and labor-intensive links of manually lifting the fastening device, improving work efficiency, saving human resources, and improving the automation of the fastening work of the fixing bolts.
Smart Images
Figure CN222831158U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of track engineering construction, in particular to a fast bolt fastening device based on a track surface, which is used for fastening fixing bolts on a transport track in a track engineering storage area. Background Art
[0002] With the rapid rise of rail engineering in my country, rail construction access roads are becoming more and more arduous. Multiple tracks are often built in the engineering storage area to assist in the transportation of goods or engineering parts. At present, the transportation tracks in the rail engineering storage area are mostly suspended horizontally at a certain height using multiple steel columns arranged at intervals, and the tracks and each steel column are fixed by fixing bolts; due to the limited working space in the storage area and the large number of bolts that need to be installed and fixed on the entire track, multiple workers are required to lift the fastening device to the upper surface of the steel column to complete the bolt tightening work, which is difficult to operate, has low installation efficiency, is labor-intensive and time-consuming, affects the progress of the project, and to a certain extent increases the project cost. Summary of the invention
[0003] The utility model aims to provide a fast bolt fastening device based on a track surface, which is used for fastening fixing bolts on a transport track in a track engineering storage area.
[0004] In order to achieve the above purpose, the utility model can adopt the following technical solutions:
[0005] The rail surface-based bolt fastening device of the utility model comprises a walking trolley that walks along the rail surface, and a working trolley connected to the front end of the walking trolley and moving along the rail surface; a bolt tightening unit driven by a working motor is arranged on the working trolley, and the bolt tightening unit comprises a vertical rotating shaft that is transmission-connected to the working motor through a steering gear, a tightening sleeve is connected to the lower end of the vertical rotating shaft, and a connecting cavity for slidingly fitting on the vertical rotating shaft and a clamping cavity for tightening a nut are coaxially arranged on the tightening sleeve. ; At least one positioning groove is provided on the outer wall of the vertical rotating shaft along the length direction, and a positioning slider which is adapted to be engaged with the positioning groove is provided on the inner wall of the connecting cavity; An annular groove is provided on the upper part of the outer wall of the screwing sleeve along the circumferential direction, and a top pressure sleeve is provided in the gap of the annular groove, and a Z-shaped pressure rod is fixedly connected to the top pressure sleeve, the lower end of the Z-shaped pressure rod is hinged to the bottom surface of the work trolley, and the upper end thereof extends to the top of the front end of the walking trolley, and a pulling spring connected to the rear edge of the work trolley is provided in the middle part of the Z-shaped pressure rod.
[0006] Specifically, the walking trolley includes a horizontally arranged carrying platform, four groups of walking wheels rolling along the track surface are evenly distributed on the bottom surface of the carrying platform, and a driving motor for driving the walking wheels to rotate is arranged on the carrying platform; the working trolley includes a working platform, and a pair of auxiliary wheels rolling along the track surface arranged on the bottom surface of the working platform; in addition, a plurality of guide rods are arranged side by side on the front edge of the carrying platform, and the guide rods extend horizontally forward through the working platform, thereby forming a connection between the walking trolley and the working trolley, and a limit stop head is arranged at the front end of the guide rod to prevent the working platform from slipping out.
[0007] Furthermore, since each track surface is often composed of two I-rails arranged in parallel, and each I-rail has fixing bolts symmetrically arranged on the left and right sides, the working motor is a through-axis motor fixed on the work trolley, and the axial direction of the drive shaft of the through-axis motor should be consistent with the width direction of the track surface. At this time, the bolt tightening units driven by the working motor are four groups, which are arranged in pairs on the left and right sides of each I-rail on the track surface, and can simultaneously perform tightening operations on the fixing bolts symmetrically arranged on the left and right sides of each I-rail.
[0008] Furthermore, in order to facilitate the operation of the bolt tightening unit by the staff sitting on the traveling trolley, a fixing seat fixed on the traveling trolley may be provided between the two pairs of Z-shaped pressure rods.
[0009] The advantage of the utility model is that the work trolley is driven to move along the track surface by the walking trolley, so that the work trolley can be accurately moved to the connection between the track surface and the steel column, so that the bolt tightening unit can be easily operated to complete the tightening work of the fixing bolts; in addition, since the walking trolley and the work trolley move directly on the track surface, the time-consuming and labor-intensive step of manually lifting the tightening device upwards can be avoided, thereby improving the degree of automation of the fixing bolt tightening work, saving human resources and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 It is a structural schematic diagram of the utility model.
[0011] Figure 2 yes Figure 1 Left view of .
[0012] Figure 3 yes Figure 1 Top view of the .
[0013] Figure 4 yes Figure 1 Enlarged view of part A in the middle.
[0014] Figure 5 yes Figure 4Schematic diagram of the connection between the vertical rotating shaft, the screw sleeve and the top pressure sleeve. DETAILED DESCRIPTION
[0015] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0016] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.
[0017] In addition, in the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or a sliding fit connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0018] like Figure 1-5 As shown, the rail surface-based bolt quick fastening device of the utility model comprises a trolley 1 that moves forward and backward along a rail surface 100 laid in a rail engineering depot area (the rail surface 100 is composed of a pair of parallel I-beam rails and horizontally mounted on spaced steel columns 200), and a work trolley 2 that is connected to the front end of the trolley 1 and moves along the rail surface 100.
[0019] Specifically, the walking trolley 1 includes a horizontally arranged carrying platform 1.1, and four groups of walking wheels 1.2 rolling along the track surface 100 are evenly distributed on the bottom surface of the carrying platform 1.1. A driving motor 1.3 for driving the walking wheels 1.2 to rotate is arranged on the carrying platform 1.1. A driving pulley can be arranged on the driving shaft of the driving motor 1.3, and a driven pulley can be arranged on the wheel axle between one pair of walking wheels 1.2. The driving pulley and the driven pulley are connected by a transmission belt wound thereon, thereby realizing a transmission connection, and driving the walking wheels 1.2 to roll and walk along the track surface 100; at the same time, the driving motor 1.3 should also be a bidirectional motor, thereby realizing forward and backward bidirectional movement of the entire walking trolley 1.
[0020] The work trolley 2 comprises a work platform 2.1 which is kept level with the carrying platform 1.1 of the traveling trolley 1, and a pair of auxiliary wheels 2.2 which are arranged on the bottom surface of the work platform 2.1 and roll along the track surface 100.
[0021] A plurality of guide rods 3 are arranged side by side on the front edge of the carrying platform 1.1. The guide rods 3 extend horizontally forward through the working platform 2.1. A limit stop 4 is arranged at the passing end (i.e., the front end) of the guide rods 3 to prevent the working platform 2.1 from sliding out. The work trolley 2 is connected to the traveling trolley 1 through the guide rods 3, so that the work trolley 2 can slide horizontally along the guide rods 3 to adjust its position, and when the traveling trolley 1 moves forward, it can push the work trolley 2 forward through its front edge, and when the traveling trolley 1 moves backward, it can pull the work trolley 2 backward through the guide rods 3 under the blocking action of the limit stop 4.
[0022] A bolt tightening unit driven by a working motor 5 is provided on the work trolley 2. Specifically, the bolt tightening unit includes a vertical rotating shaft 7 which is transmission-connected to the working motor 5 through a steering gear 6. The vertical rotating shaft 7 vertically passes through the working platform 2.1 of the work trolley 2 from top to bottom. A tightening sleeve 8 is coaxially connected to its lower end. A connecting chamber 9 and a clamping chamber 10 are coaxially provided on the tightening sleeve 8. The connecting chamber 9 is an upward-opening cylindrical chamber, which is used to be mounted on the lower end of the vertical rotating shaft 7 and can slide up and down along the vertical rotating shaft 7. The clamping chamber 10 is a downward-opening hexagonal chamber, which can just be mounted on the fixing bolt 300 at the connection between the track surface 100 and the steel column 200, and the cross-section of the hexagonal chamber should match the nut on the fixing bolt 300 so that the nut can be clamped.
[0023] At least one positioning groove 11 is provided on the outer wall of the vertical rotating shaft 7 along the length direction, and a positioning slide block 12 which is adapted to be engaged with the positioning groove 11 is provided on the inner wall of the connecting cavity 9 of the screw sleeve 8. The sliding cooperation of the positioning groove 11 and the positioning slide block 12 can not only realize the up and down sliding of the screw sleeve 8 along the vertical rotating shaft 7, but also drive the screw sleeve 8 to rotate together when the vertical rotating shaft 7 rotates, and then drive the nut to rotate through the rotation of the screw sleeve 8, thereby completing the tightening work of the fixing bolt 300.
[0024] An annular groove 13 is provided on the upper part of the outer wall of the screw sleeve 8 along the circumferential direction, and a top pressure sleeve 14 is arranged in the annular groove 13. The top pressure sleeve 14 is clamped in the annular groove 13 and maintains a certain gap between the top pressure sleeve 14 and the bottom of the annular groove 13 to ensure that the top pressure sleeve 14 can push the screw sleeve 8 to move up and down, and at the same time, the top pressure sleeve 14 can have a certain offset space.
[0025] A Z-shaped pressure rod 15 is fixedly connected to the top pressure sleeve 14, and the lower end of the Z-shaped pressure rod 15 is hinged on the bottom surface of the work trolley 2, and the upper end is an operating end that can rotate up and down, extending to the top of the front end of the walking trolley 1. In addition, a pulling spring 16 connected to the rear edge of the work trolley 2 is also provided in the middle of the Z-shaped pressure rod 15. The upper end of the Z-shaped pressure rod 15 is always pulled upward by the pulling spring 16, so that the Z-shaped pressure rod 15 will not rotate downward at will. Only when the operating end of the Z-shaped pressure rod 15 is manually pressed downward, the pulling force of the pulling spring 16 can be overcome to make the Z-shaped pressure rod 15 rotate downward, thereby driving the top pressure sleeve 14 fixed thereto to move downward, and pushing the screwing sleeve 8 to slide vertically downward along the vertical rotating shaft 7.
[0026] Furthermore, since the track surface 100 is composed of two parallel I-rails, and each I-rail has fixing bolts 300 symmetrically arranged on the left and right sides, the working motor 5 is a through-axis motor fixed on the work trolley 2, and the axial direction of the driving shaft of the through-axis motor should be consistent with the width direction of the track surface 100; at this time, the bolt tightening units driven by the working motor 5 are four groups, and are arranged in pairs on the left and right sides of each I-rail on the track surface 100, so as to realize the simultaneous tightening operation of the fixing bolts 300 arranged in pairs on the left and right sides of each I-rail. In addition, in order to facilitate the staff to operate the bolt tightening unit while sitting on the walking trolley 1, a fixing seat 17 can also be set between the two groups of bolt tightening units arranged in pairs, and the fixing seat 17 is fixed on the walking trolley 1 and is located between the two pairs of Z-shaped pressure rods 15.
[0027] When in use, the staff only needs to sit on the walking trolley 1 and control the walking trolley 1 to move to the vicinity of the installation position of the fixing bolt 300; then manually translate the work trolley 2 so that the screw sleeve 8 is directly above the fixing bolt 300, and then the operating end of the Z-shaped pressure rod 15 can be pressed downward to drive the screw sleeve 8 to move downward (the maximum distance the screw sleeve 8 moves downward cannot be greater than the length of the vertical shaft 7 inserted into the connecting cavity 9), so that the locking cavity 10 at the bottom of the screw sleeve 8 is locked on the nut of the fixing bolt 300; then the working motor 5 can be turned on, and the vertical shaft 7 is driven to rotate by the working motor 5, thereby driving the screw sleeve 8 to rotate, and the tightening work of the fixing bolt 300 is easily completed, avoiding the time-consuming and labor-intensive step of manually lifting the tightening device upward, improving the degree of automation of the tightening work of the fixing bolt 300, saving human resources, and improving work efficiency.
[0028] After the tightening work of the fixing bolt 300 is completed, the working motor 5 is stopped and the pressed Z-shaped pressure rod 15 is released. The Z-shaped pressure rod 15 will rotate upward under the return action of the pulling spring 16, driving the screw sleeve 8 to move upward and leave the fixing bolt 300. At this time, the walking trolley 1 can be driven forward again to move to the next workstation to work.
Claims
1. A fast bolt fastening device based on a track surface, characterized in that: It includes a traveling trolley that travels along a track surface, and a working trolley connected to the front end of the traveling trolley and moving along the track surface; the working trolley is provided with a bolt tightening unit driven by a working motor, the bolt tightening unit includes a vertical rotating shaft that is transmission-connected to the working motor through a steering gear, a tightening sleeve is connected to the lower end of the vertical rotating shaft, and a connecting cavity for slidingly fitting on the vertical rotating shaft and a clamping cavity for tightening a nut are coaxially provided on the tightening sleeve; on the outer wall of the vertical rotating shaft At least one positioning groove is provided along the length direction of the upper edge, and a positioning slider which is adapted to be engaged with the positioning groove is provided on the inner wall of the connecting cavity; an annular groove is provided on the circumferential direction of the upper part of the outer wall of the screwing sleeve, and a top pressure sleeve is provided in the gap of the annular groove, and a Z-shaped pressure rod is fixedly connected to the top pressure sleeve, the lower end of the Z-shaped pressure rod is hinged to the bottom surface of the work trolley, and the upper end thereof extends to above the front end of the walking trolley, and a pulling spring connected to the rear edge of the work trolley is provided in the middle part of the Z-shaped pressure rod.
2. The rail surface-based bolt fastening device according to claim 1, characterized in that: The walking trolley comprises a horizontally arranged bearing platform, four groups of walking wheels rolling along the track surface are evenly distributed on the bottom surface of the bearing platform, and a driving motor for driving the walking wheels to rotate is arranged on the bearing platform.
3. The rail surface-based bolt fastening device according to claim 2, characterized in that: The work trolley comprises a work platform and a pair of auxiliary wheels arranged on the bottom surface of the work platform and rolling along the track surface.
4. The rail surface-based bolt fastening device according to claim 3, characterized in that: A plurality of guide rods are arranged side by side on the front edge of the bearing platform. The guide rods extend forward horizontally through the working platform, and a limit stopper is arranged at the front end of the guide rod.
5. The rail surface-based bolt fastening device according to claim 1, characterized in that: The working motor is a through-axis motor fixed on the working trolley, and the bolt tightening units are four groups, which are arranged in pairs on the left and right sides of each I-beam rail on the track surface.
6. The rail surface-based bolt fastening device according to claim 5, characterized in that: A fixing seat fixed on the traveling trolley is arranged between the two paired Z-shaped pressure rods.