CN220487618U

CN220487618U - Centering connection system for telescopic arm of arch frame trolley

Info

Publication number: CN220487618U
Application number: CN202322293732.1U
Authority: CN
Inventors: 冯怀; 邱章令; 何选民; 魏剑; 陈立志
Original assignee: Sichuan Lanhai Intelligent Equipment Manufacturing Co Ltd
Current assignee: Sichuan Lanhai Intelligent Equipment Manufacturing Co Ltd
Priority date: 2023-08-25
Filing date: 2023-08-25
Publication date: 2024-02-13
Anticipated expiration: 2033-08-25

Abstract

The utility model discloses a centering connection system for telescopic arms of an arch frame trolley, which comprises a trolley body, wherein the trolley body is provided with telescopic arms, each telescopic arm comprises an inner rod and an outer rod sleeved outside the inner rod, a mounting plate is arranged on the upper edge of the outer edge of the end face of the outer rod, which faces the inner rod, in a surrounding manner, and at least two centering blocks for fixing the outer surface of the inner rod are arranged on the end face of the mounting plate, which faces the inner rod. The inner rod and the outer rod are both cuboid, and the centering blocks comprise at least one upper centering block for fixing the top angle of the top of the inner rod and at least one lower centering block for fixing the top angle of the bottom of the inner rod. The utility model can fix the outer surface of the inner rod, thereby avoiding the inner rod from shaking in the outer rod in the telescoping process of the telescoping arm, and the utility model has strong stability and high safety.

Description

Centering connection system for telescopic arm of arch frame trolley

Technical Field

The utility model relates to the technical field of arch centering trolleys, in particular to a centering connection system for an arch centering trolley telescopic arm.

Background

Arch bars are a common instrument in tunnel construction. As shown in fig. 1, the existing arch-type trolley comprises a trolley body 1, wherein a mechanical arm is arranged on the trolley body 1, and a telescopic arm 2 is arranged on the mechanical arm, so that the mechanical arm can be constructed after being prolonged. In the telescopic process of the telescopic boom 2, the junction of the inner rod 3 and the outer rod 4 of the telescopic boom 2 is easy to shake due to fit clearance, so that the stability is poor and the potential safety hazard is high.

Disclosure of Invention

The utility model aims to provide a centering connection system for an arch frame trolley telescopic arm, which can fix the outer surface of an inner rod, so that the inner rod is prevented from shaking in an outer rod in the telescopic process of the telescopic arm, and the centering connection system is high in stability and safety.

In order to solve the technical problems, the utility model adopts the following scheme:

the utility model provides an arch frame trolley telescopic boom centering connected system, includes the automobile body, is equipped with telescopic boom on the automobile body, and telescopic boom includes interior pole and cover and establishes the outer pole outside interior pole, the terminal surface outer edge that the outer pole was towards interior pole goes up to encircle and is equipped with the mounting panel, is equipped with two at least centering pieces that are used for fixed interior pole surface on the terminal surface of mounting panel towards interior pole. The telescopic arm has the advantages that the outer surface of the inner rod can be fixed through the arrangement of the centering blocks, so that the inner rod can be prevented from shaking in the outer rod in the telescopic process, the stability is high, and the safety is high.

Further, the inner rod and the outer rod are both cuboid, and the centering blocks comprise at least one upper centering block for fixing the top angle of the top of the inner rod and at least one lower centering block for fixing the top angle of the bottom of the inner rod. The upper centering block and the lower centering block are arranged, so that the inner rod can be fixed at the same time from the upper side and the lower side of the inner rod, and the positioning effect is good.

Further, the centering block comprises a centering part in an L shape, and two inner surfaces forming the inner angle of the centering part and two outer surfaces forming the corresponding vertex angle of the inner rod are kept in a pressed state. The friction reducing layer is arranged between the middle part and the inner rod to reduce friction force between the middle part and the inner rod. The fixing device has the effect that the fixing effect on the outer wall of the fixing rod can be achieved through the arrangement of the middle part.

Further, the centering block is connected with the mounting plate through a locking bolt, and the locking bolt comprises a screw rod and a screw cap. The locking bolt is parallel to the extending direction of the inner rod, and the centering block is perpendicular to the locking bolt.

Further, go up centering piece including being used for with last centering piece and mounting panel fixed connection's connecting portion, be equipped with at least one bar hole on the connecting portion, be equipped with on the mounting panel and be used for carrying out threaded connection's screw hole with the locking bolt that passes the bar hole, the length of bar hole is greater than the width of bar hole, the width of bar hole is greater than the external diameter of bolt, be equipped with two adjusting plates with two mutually perpendicular's of corresponding middle part surface parallel arrangement respectively in every apex angle both sides on the mounting panel, threaded connection has the adjusting bolt that the bottom kept contact with the middle part surface on the adjusting plate. The clamping device has the advantages that through the arrangement of the strip-shaped holes and the adjusting bolts, the centering portion can be pushed to be close to the outer surface of the inner rod by tightening the adjusting bolts, and the effect of keeping the clamping state with the outer surface of the centering portion is achieved.

Further, a supporting ring for the screw rod to pass through is arranged on one surface of the strip-shaped hole facing the screw cap, and the outer diameter of the supporting ring is larger than the width of the strip-shaped hole. The nut can be prevented from falling into the strip-shaped hole through the arrangement of the supporting ring, and the supporting ring is provided with two opposite ends which are kept in contact with the surface of the mounting plate in the state that the locking bolt is mounted on the mounting plate.

Further, the length direction of the strip-shaped hole is parallel to the extending direction of the diagonal line on the cross section of the inner rod.

Further, an elastic washer for the screw rod to pass through is arranged on one surface of the nut, which faces the centering block.

Further, the telescopic rod comprises a secondary inner rod, the inner rod is sleeved on the outer wall of the secondary inner rod, a mounting plate is arranged around the outer edge of the end face of the inner rod, which faces the secondary inner rod, and at least two centering blocks used for fixing the edge of the secondary inner rod are arranged on the end face of the mounting plate, which faces the secondary inner rod.

The utility model has the beneficial effects that:

1. through the arrangement of the centering blocks, the outer surface of the inner rod can be fixed, so that the inner rod is prevented from shaking in the outer rod in the telescopic process of the telescopic arm, the stability is high, and the safety is high;

2. the upper centering block and the lower centering block are arranged, so that the inner rod can be fixed from the upper side and the lower side of the inner rod at the same time, and the positioning effect is good;

3. through the setting of bar hole and adjusting bolt, can promote the centering through tightening adjusting bolt and be close to the interior pole surface, reach the effect that keeps the state of compressing tightly with centering surface.

Drawings

FIG. 1 is a schematic view of a prior art arch truck;

fig. 2 is a schematic structural view of an arch bogie in embodiment 1;

FIG. 3 is a schematic top perspective view of embodiment 1 at a mounting plate;

FIG. 4 is a schematic bottom perspective view of embodiment 1 at the mounting plate;

FIG. 5 is a schematic view showing a longitudinal sectional structure of example 1 in a cross section through the length direction of the bar-shaped hole at the lock bolt;

fig. 6 is a schematic view showing a longitudinal sectional structure of example 1 in a cross section in a width direction through a bar-shaped hole at a lock bolt.

Reference numerals: 1. a vehicle body; 2. a telescoping arm; 3. an inner rod; 4, an outer rod; 5. a mounting plate; 6. centering blocks; 7. an upper centering block; 8. a lower centering block; 9. the middle part is opposite; 10. a locking bolt; 11. a screw; 12. a screw cap; 13. a connection part; 14. a bar-shaped hole; 15. a threaded hole; 16. an adjusting plate; 17. an adjusting bolt; 18. a support ring; 19. an elastic washer; 20. a secondary inner rod.

Detailed Description

The present utility model will be described in further detail with reference to examples and drawings, but embodiments of the present utility model are not limited thereto.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "longitudinal", "lateral", "horizontal", "inner", "outer", "front", "rear", "top", "bottom", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, are merely for convenience of describing the present utility model and for simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be construed as limiting the present utility model.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "configured," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Example 1

The utility model provides an centering connected system of flexible arm 2 of bow member platform truck, as shown in fig. 2, includes automobile body 1, is equipped with flexible arm 2 on the automobile body 1, and flexible arm 2 includes interior pole 3 and cover and establishes the outer pole 4 outside interior pole 3, the outer pole 4 is equipped with mounting panel 5 towards the outer edge of terminal surface of interior pole 3 and goes up the encirclement, is equipped with four centering pieces 6 that are used for fixed interior pole 3 surface on the terminal surface of mounting panel 5 towards interior pole 3. The mounting plate 5 is in the shape of a hollow square plate. The function is, through the setting of centering piece 6, can fix the surface of interior pole 3 to avoid flexible arm 2 at flexible in-process, interior pole 3 produces in outer pole 4 and rocks, and stability is strong, and the security is high.

Specifically, as shown in fig. 3 and fig. 4, the inner rod 3 and the outer rod 4 are both rectangular, and the centering block 6 includes two upper centering blocks 7 for fixing the top corner of the inner rod 3 and two lower centering blocks 8 for fixing the bottom corner of the inner rod 3. The function is that through the setting of last centering piece 7 and lower centering piece 8, can fix interior pole 3 simultaneously from the upper and lower both sides of interior pole 3, location effect is good.

Specifically, as shown in fig. 3 and 4, the centering block 6 includes a centering portion 9 having an L shape, and two inner surfaces forming an inner corner of the centering portion 9 are kept pressed against two outer surfaces forming corresponding top corners of the inner rod 3. The effect that it was used for, through setting up middle part 9, can realize fixing the dead lever outer wall.

Specifically, as shown in fig. 3 and 4, the centering block 6 is connected with the mounting plate 5 through a locking bolt 10, and the locking bolt 10 includes a screw 11 and a nut 12. The locking bolt 10 is arranged in parallel with the extending direction of the inner rod 3, and the centering block 6 is arranged perpendicular to the locking bolt 10.

Specifically, as shown in fig. 3, the upper centering block 7 includes a connecting portion 13 for fixedly connecting the upper centering block 7 with the mounting plate 5, two bar-shaped holes 14 are provided on the connecting portion 13, a threaded hole 15 for threaded connection with a locking bolt 10 passing through the bar-shaped holes 14 is provided on the mounting plate 5, as shown in fig. 5 and 6, the length of the bar-shaped hole 14 is greater than the width of the bar-shaped hole 14, the width of the bar-shaped hole 14 is greater than the outer diameter of the bolt, two adjusting plates 16 respectively parallel to two mutually perpendicular outer surfaces of the corresponding centering portion 9 are provided on two sides of each vertex angle corresponding to the upper centering block 7 on the mounting plate 5, and an adjusting bolt 17 with the bottom end kept in contact with the outer surface of the centering portion 9 is in threaded connection on the adjusting plates. The function is that through the arrangement of the strip-shaped hole 14 and the adjusting bolt 17, the adjusting bolt 17 can be screwed to push the middle part 9 to be close to the outer surface of the inner rod 3, so that the effect of keeping a pressed state with the outer surface of the middle part 9 is achieved.

Specifically, as shown in fig. 5 and 6, a supporting ring 18 for the screw 11 to pass through is provided on a surface of the bar-shaped hole 14 facing the nut 12, and the outer diameter of the supporting ring 18 is larger than the width of the bar-shaped hole 14. The effect is that by the arrangement of the support ring 18, the nut 12 is prevented from falling into the bar-shaped hole 14, and in the state where the lock bolt 10 is mounted on the mounting plate 5, the support ring 18 has opposite ends that remain in contact with the surface of the mounting plate 5.

Specifically, as shown in fig. 3 and 4, the length direction of the strip-shaped hole 14 is parallel to the extending direction of the diagonal line on the cross section of the inner rod 3.

Specifically, as shown in fig. 5 and 6, the side of the nut 12 facing the centering block 6 is provided with an elastic washer 19 through which the screw 11 passes.

Specifically, as shown in fig. 3 and 4, the telescopic rod further comprises a secondary telescopic rod, the secondary telescopic rod comprises a secondary inner rod 20, the inner rod 3 is sleeved on the outer wall of the secondary inner rod 20, a mounting plate 5 is arranged around the outer edge of the end face of the inner rod 3, which faces the secondary inner rod 20, of the inner rod 3, and at least two centering blocks 6 used for fixing the edge of the secondary inner rod 20 are arranged on the end face, which faces the secondary inner rod 20, of the mounting plate 5.

The working principle of this embodiment is explained as follows: firstly, the lower centering blocks 8 are arranged on two corners of the bottom edge of the mounting plate 5, the two corners of the bottom surface of the inner rod 3 are initially supported and fixed, then the strip-shaped holes 14 of the upper centering blocks 7 are aligned with the threaded holes 15, the threaded holes 15 are positioned in the strip-shaped holes 14, then the screw rods 11 of the locking bolts 10 sequentially penetrate through the elastic washers 19, the supporting rings 18 and the strip-shaped holes 14 and then are screwed into the threaded holes 15, then the adjusting bolts 17 are screwed first, each upper centering block 7 and two sides of the corresponding inner rod 3 are kept in a pressed state, finally the locking bolts 10 are screwed, the positioning of the upper centering blocks 7 is completed, the whole centering positioning effect of the inner rod 3 is completed, and the inner rod 3 is prevented from shaking in the telescopic process.

The foregoing description of the preferred embodiment of the utility model is not intended to limit the utility model in any way, but rather to cover all modifications, equivalents, improvements and alternatives falling within the spirit and principles of the utility model.

Claims

1. The utility model provides an arch frame platform truck flexible arm centering connected system, includes automobile body (1), is equipped with flexible arm (2) on automobile body (1), and flexible arm (2) are established outside interior pole (3) outer pole (4), its characterized in that including interior pole (3) and cover: the outer edge of the end face of the outer rod (4) facing the inner rod (3) is provided with a mounting plate (5) in a surrounding mode, and the end face of the mounting plate (5) facing the inner rod (3) is provided with at least two centering blocks (6) used for fixing the outer surface of the inner rod (3).

2. An arch trolley telescopic arm centering connection system as claimed in claim 1, wherein: the inner rod (3) and the outer rod (4) are both cuboid, and the centering block (6) comprises at least one upper centering block (7) for fixing the top angle of the top of the inner rod (3) and at least one lower centering block (8) for fixing the top angle of the bottom of the inner rod (3).

3. An arch trolley telescopic arm centering connection system as claimed in claim 2, wherein: the centering block (6) comprises an L-shaped centering portion (9), and two inner surfaces forming the inner angle of the centering portion (9) are kept in a pressed state on two outer surfaces forming the corresponding vertex angle of the inner rod (3).

4. A centering connection system for telescopic arms of an arch trolley according to claim 3, wherein: the centering block (6) is connected with the mounting plate (5) through a locking bolt (10), and the locking bolt (10) comprises a screw rod (11) and a screw cap (12).

5. An arch trolley telescopic boom centering connection system as claimed in claim 4, wherein: the upper centering block (7) comprises a connecting portion (13) used for fixedly connecting the upper centering block (7) with the mounting plate (5), at least one strip-shaped hole (14) is formed in the connecting portion (13), a threaded hole (15) used for being in threaded connection with a locking bolt (10) penetrating through the strip-shaped hole (14) is formed in the mounting plate (5), the length of the strip-shaped hole (14) is larger than the width of the strip-shaped hole (14), the width of the strip-shaped hole (14) is larger than the outer diameter of the bolt, two adjusting plates (16) which are respectively arranged in parallel with two mutually perpendicular outer surfaces of the corresponding centering portion (9) are arranged on two sides of each vertex angle of the mounting plate (5), and the bottom end of each adjusting plate is in threaded connection with an adjusting bolt (17) which is kept in contact with the outer surface of the centering portion (9).

6. An arch trolley telescopic boom centering connection system as claimed in claim 5, wherein: one surface of the strip-shaped hole (14) facing the screw cap (12) is provided with a supporting ring (18) for the screw rod (11) to pass through, and the outer diameter of the supporting ring (18) is larger than the width of the strip-shaped hole (14).

7. An arch trolley telescopic boom centering connection system as claimed in claim 5, wherein: the length direction of the strip-shaped hole (14) is parallel to the extending direction of the diagonal line on the cross section of the inner rod (3).

8. An arch trolley telescopic boom centering connection system as claimed in claim 4, wherein: one surface of the nut (12) facing the centering block (6) is provided with an elastic washer (19) for the screw (11) to pass through.

9. An arch trolley telescopic arm centering connection system as claimed in claim 1, wherein: the two-stage telescopic rod comprises a two-stage inner rod (20), the inner rod (3) is sleeved on the outer wall of the two-stage inner rod (20), a mounting plate (5) is arranged on the outer edge of the end face of the inner rod (3) facing the two-stage inner rod (20), and at least two centering blocks (6) used for fixing the edge of the two-stage inner rod (20) are arranged on the end face of the mounting plate (5) facing the two-stage inner rod (20).