CN211448561U

CN211448561U - Rack fixing structure

Info

Publication number: CN211448561U
Application number: CN201921792783.6U
Authority: CN
Inventors: 贾绍宽; 安战军; 贾护
Original assignee: Wuxi Drillto Trenchless Co ltd
Current assignee: Wuxi Drillto Trenchless Co ltd
Priority date: 2019-10-23
Filing date: 2019-10-23
Publication date: 2020-09-08
Anticipated expiration: 2029-10-23

Abstract

The utility model provides a rack fixed knot constructs, including rig, rack and two baffles, mated baffle sets up in the rig homonymy, forms the centre gripping space of rack. The baffle sets up in the rack both ends that end to end passes through, and each rack is fastened to the dog, from this, makes things convenient for placing of rack, need not factors such as length, direction, size, the precision of key consideration rack, and the fixed intensity of rack and position precision can be guaranteed.

Description

Rack fixing structure

Technical Field

The utility model relates to a rack fixed knot constructs especially indicates a rack fixed knot of directional rig of non-excavation level constructs.

Background

At present, the laying of public pipelines (water pipes, cables, gas, communication, cable television and the like) in daily life needs to be realized by using trenchless technology. The non-excavation refers to a new construction technology for laying, replacing and repairing various underground pipelines under the condition of excavating on a tiny part of the earth surface by using various rock-soil drilling equipment and technical means in a guiding mode, a directional drilling mode and the like. In trenchless operations, trenchless horizontal directional drilling rigs are typically used to bury the utility lines in the ground without the need to perform extensive excavation work.

In the prior art, a non-excavation horizontal directional drilling machine is generally provided with a gear-rack feeding mechanism for realizing drilling, back-dragging and reaming of a drill rod and pipe pulling. At present, a rack fixing structure part of a non-excavation horizontal directional drilling machine adopts a welding structure, and is not easy to disassemble and replace; part rack fixed knot constructs and adopts the fix with screw, and intensity and position accuracy are difficult to guarantee.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve is: the rack is convenient to mount and dismount, and the fixing strength and the position precision are guaranteed.

In order to solve the technical problem, the utility model discloses a technical scheme be: a rack fixing structure comprises a drilling frame, a rack and two baffle plates, wherein the baffle plates in pair are arranged on the same side of the drilling frame to form a clamping space of the rack.

In the foregoing, the rack further includes at least a pair of stoppers, the rack has a plurality of, the two ends of the rack are respectively provided with a limiting opening, the paired stoppers respectively correspond to the limiting openings, and the paired stoppers are respectively arranged in the limiting openings.

Further, the stopper is provided with an inclined surface.

Furthermore, the limiting opening comprises a first edge, and the length of the first edge is equal to the sum of the lengths of the upper bottom edge and the lower bottom edge of the stop block.

In the above, the inclination angle of the inclined surface corresponds to the degree of morse taper.

The baffle sets up in the rack both ends that end to end passes through, and each rack is fastened to the dog, from this, makes things convenient for placing of rack, need not factors such as length, direction, size, the precision of key consideration rack, and the fixed intensity of rack and position precision can be guaranteed.

Drawings

The following detailed description of the specific structure of the present invention with reference to the accompanying drawings

Fig. 1 is a schematic structural view in front view of a first embodiment of the present invention;

fig. 2 is a schematic structural diagram of a first embodiment of the present invention in a top view;

FIG. 3 is a view of the present invention along A-A in FIG. 2₁A cross-sectional view of a line;

FIG. 4 shows the present invention along B-B in FIG. 2₁A cross-sectional view of a line;

fig. 5 is a schematic structural view of a stop block according to a second embodiment of the present invention;

1-a drill frame; 2-a baffle plate; 3, a stop block; 4-a rack; 5-screw.

Detailed Description

In order to explain technical contents, structural features, and objects and effects of the present invention in detail, the following description is given in conjunction with the embodiments and the accompanying drawings.

Referring to fig. 1 to 4, a rack 4 fixing structure includes a drilling frame 1, a rack 4 and two baffle plates 2, wherein the pair of baffle plates 2 are disposed on the same side of the drilling frame 1 to form a clamping space for the rack 4.

The baffle plates 2 are arranged at two ends of all the racks 4, so that a clamping space is formed by the baffle plates 2, and the racks 4 can be conveniently placed; the rack 4 is clamped by the baffle 2, the factors such as the length, the direction, the size, the precision and the like of the rack 4 do not need to be considered in a key mode, and the fixing strength and the position precision of the rack 4 are easy to guarantee.

In the above, each rack 4 is also fixed to the drill frame 1 by the screw 5. Therefore, the stability of the rack 4 and the drill frame 1 is enhanced, and the fixing strength is ensured.

In the foregoing, the rack 4 fixing structure further includes paired stoppers 3, the rack 4 has a plurality of, the two ends of the rack 4 are respectively provided with a spacing opening, the paired stoppers 3 respectively correspond to the spacing openings, and the paired stoppers 3 are respectively disposed in the spacing openings.

Be equipped with two mated dog 3 between per two rack 4, through adjusting two dog 3 that support each other, can make two dog 3 closely prop up the breach between two rack 4, every rack 4 junction all can bear the feed force, has guaranteed overall structure's stability, and it is even to pass power to have fine position accuracy.

In the above, the baffle plates 2 at the two ends of the rack 4 can ensure that the plurality of racks 4 on the drilling machine are of an integral structure, and the strength of the rack fixing structure is enhanced.

In the aforesaid, the dog 3 of different length can be changed to this 4 clearances of rack that can adjust different specifications, push up two racks 4, thereby change the intensity of intensity centre gripping, make whole more stable.

Further, the paired stoppers 3 are provided with mutually fitting small-angle inclined surfaces. Therefore, the total width of the two blocks 3 can be changed by the transverse relative displacement of the two blocks 3. The gap formed at the joint of the two racks 4 is ensured to be filled. Because the rack 4 is longer, length direction size machining precision is difficult for guaranteeing, causes the width dimension of every breach different, and the width adjustment function of mated dog 3 has then closed the error that arouses because of the machining precision completely. The plurality of racks 4 are ensured to be a rigid whole in the length direction.

Further, the bottom of the stop block 3 is fixedly connected to the drill frame 1. Therefore, the stability of the stop block 3 to the rack 4 clamped by the stop block is ensured, the possibility of displacement of the rack 4 is reduced, and the mechanical stability is ensured.

Referring to fig. 5, further, the pair of stoppers 3 can be divided into two pieces by a rectangular member, so that the manufacturing is convenient, the specification is more standard, the cost is lower, and a stable structure is easier to be made, and the stabilizing effect is better.

Furthermore, the rectangular limiting port is provided with a first edge of the rectangular limiting port, and the length of the first edge of the rectangular limiting port is equal to the sum of the lengths of the upper bottom edge and the lower bottom edge of the right trapezoid.

Therefore, the stability of the device is better guaranteed, and meanwhile, the production cost is reduced.

The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.

Claims

1. The utility model provides a rack fixed knot constructs, includes the drill jig, its characterized in that: the drilling jig further comprises a rack and two baffle plates, wherein the baffle plates in pair are arranged on the same side of the drilling jig to form a clamping space of the rack.

2. The rack fixing structure according to claim 1, wherein: the rack is provided with a plurality of racks, two ends of each rack are respectively provided with a limiting opening, the paired stoppers respectively correspond to the limiting openings, and the paired stoppers are respectively arranged in the limiting openings.

3. The rack fixing structure according to claim 2, wherein: the stop block is provided with an inclined surface.

4. The rack fixing structure according to claim 3, wherein: the limiting opening comprises a first edge, and the length of the first edge is equal to the sum of the lengths of the upper bottom edge and the lower bottom edge of the stop block.

5. The rack fixing structure according to claim 4, wherein: the inclination angle of the inclined plane accords with the degree of Morse taper.