Rack lifting device of long spiral drilling machine

Abstract

The utility model relates to the technical field of long spiral drilling machines, and provides a long spiral drilling machine lifting device which comprises a supporting frame and a lifting seat, the lifting seat is connected with the supporting frame in a sliding mode, the supporting frame is provided with a limiting fixing plate used for limiting the moving distance of the lifting seat, and the lifting seat is provided with a containing cavity used for installing a driving motor. A buffering structure is arranged between the limiting fixing plate and the lifting base and comprises a plurality of buffering rods and a plurality of buffering assemblies, the buffering rods are connected to the limiting fixing plate in a sliding mode, and the buffering assemblies correspond to the buffering rods one to one and are located between the buffering rods and the limiting fixing plate. According to the technical scheme, the problem that the limiting fixing plate and the lifting base are prone to deformation in the prior art is solved, and the influence on the driving motor when the limiting fixing plate collides with the lifting base is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of long spiral drilling machines, and in particular to a lifting device for a long spiral drilling machine. Background Art

[0002] Long auger drilling rig is a kind of equipment used in construction operations, which is often used in deep hole drilling and other construction links. At present, in order to facilitate the use of long auger drilling rigs, long auger drilling rigs are usually equipped with a lifting device for lifting the drill bit and fixing the drill bit position.

[0003] The existing lifting device usually uses a traction rope to pull the lifting seat to lift the drill bit. However, during the lifting process, improper operation by the operator may cause excessive lifting, causing the lifting seat to hit the limit fixing plate on the top of the lifting device, thereby causing both to deform. In addition, the vibration generated by the collision will be transmitted along the lifting seat body, and may even cause the drive motor installed on the lifting seat to be displaced or damaged, which may affect the normal use of the drive motor. Utility Model Content

[0004] The utility model provides a long spiral drilling machine lifting device, which solves the problem that a limit fixing plate and a lifting seat are easily deformed in the related technology and reduces the influence on a driving motor when the limit fixing plate collides with the lifting seat.

[0005] The technical solution of the utility model is as follows:

[0006] A long spiral drilling rig lifting device comprises a support frame and a lifting seat, wherein the lifting seat is slidably connected to the support frame, the support frame is provided with a limit fixing plate for limiting the moving distance of the lifting seat, the lifting seat is provided with a receiving cavity for installing a driving motor, a buffer structure is provided between the limit fixing plate and the lifting seat, the buffer structure comprises a plurality of buffer rods and a plurality of buffer assemblies, each of the buffer rods is slidably connected to the limit fixing plate, each of the buffer assemblies corresponds to each buffer rod one by one, and is located between each buffer rod and the limit fixing plate.

[0007] Furthermore, each of the buffer rods includes a limiting portion, a sliding portion, and a buffer portion. The sliding portion is located between the buffer portion and the limiting portion. The limiting fixing plate is provided with a plurality of sliding openings for the sliding portions to be slidably connected.

[0008] Furthermore, each of the buffer components includes a first elastic member and a second elastic member, the first elastic member is located between the limiting portion and the limiting fixing plate, and the second elastic member is located between the buffer portion and the limiting fixing plate.

[0009] Furthermore, a buffer pad is provided on one end of the buffer portion close to the lifting seat, and the buffer pad is made of elastic material.

[0010] Furthermore, a plurality of reinforcing ribs are provided between the end of the limiting fixing plate away from the lifting seat and the supporting frame.

[0011] Furthermore, the lifting seat includes a seat body and a cover plate. The cover plate is located at one end of the seat body close to the limiting fixing plate and is slidably connected to the seat body. The longitudinal section of the seat body is a "U"-shaped structure.

[0012] Furthermore, sliding bodies are provided at both ends of the cover plate, and a slideway for sliding connection of the sliding bodies is provided on the base body.

[0013] Furthermore, a plurality of fixing components are provided between the cover plate and the base body, each of the fixing components comprises a connecting hole, a fixing hole, and a fixing piece, each of the fixing holes corresponds to each of the connecting holes one by one, each of the connecting holes is opened on the cover plate, each of the fixing holes is opened on the base body and passes through the connecting holes, and each of the fixing pieces is threadedly connected to each of the fixing holes one by one.

[0014] The working principle and beneficial effects of the utility model are:

[0015] 1. A buffer structure is provided between the limit fixing plate and the lifting seat in the utility model, so that when the lifting seat is lifted excessively, the limit fixing plate contacts the buffer structure first, which can play a role of buffer protection and prevent the limit fixing plate and the lifting seat from being deformed due to collision.

[0016] 2. At the same time, since the buffer structure can alleviate the impact force caused by the collision between the limit fixing plate and the lifting seat, the vibration generated by the impact force is unlikely to cause the drive motor located in the lifting seat to be displaced or even damaged, thereby protecting the drive motor itself. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0018] Figure 1 This is a schematic diagram of the structure of this embodiment;

[0019] Figure 2 Schematic diagram of the internal structure of this embodiment;

[0020] Figure 3 is a cross-sectional view of the buffer structure in this embodiment;

[0021] Figure 4 is a cross-sectional view of the fixing assembly in this embodiment;

[0022] Figure 5 It is an exploded view of the lifting seat in this embodiment.

[0023] In the figure:

[0024] 1. Support frame; 11. Limit fixing plate; 111. Sliding opening; 2. Lifting seat; 21. Accommodating cavity; 22. Seat body; 221. Slideway; 23. Cover plate; 231. Sliding body; 3. Driving motor; 4. Buffer structure; 41. Buffer rod; 411. Limiting part; 412. Sliding part; 413. Buffer part; 42. Buffer assembly; 421. First elastic part; 422. Second elastic part; 5. Buffer pad; 6. Reinforcing rib; 7. Fixing assembly; 71. Connecting hole; 72. Fixing hole; 73. Fixing part; 8. Towing rope. DETAILED DESCRIPTION

[0025] The following will be combined with 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.

[0026] like Figure 1 to Figure 3 As shown, this embodiment proposes a long spiral drilling rig lifting device, which mainly includes a support frame 1 and a lifting seat 2. The lifting seat 2 is slidingly connected to the support frame 1. The sliding connection between the lifting seat 2 and the support frame 1 is preferably driven to slide through a traction rope 8 lifting system. Because the traction rope 8 lifting system has a high efficiency lifting speed and load capacity, it can ensure the working efficiency of the long thread rotary drilling rig. At the same time, the traction rope 8 lifting system is usually equipped with multiple safety protection devices, such as limit switches, overload protection, etc., to ensure safety and reliability during operation and reduce the risk of accidents.

[0027] The support frame 1 is provided with a limit fixing plate 11 for limiting the moving distance of the lifting seat 2. A buffer structure 4 is provided between the limit fixing plate 11 and the lifting seat 2. The buffer structure 4 includes a plurality of buffer rods 41 and a plurality of buffer components 42. Each buffer rod 41 is slidably connected to the limit fixing plate 11. That is, when the lifting seat 2 is lifted excessively by the traction rope 8 and collides with the limit fixing plate 11, the lifting seat 2 will first contact the buffer rod 41, thereby pushing the buffer rod 41 to move upward. Each buffer rod 41 includes a limit portion 411, a sliding portion 412, and a buffer portion 413. The sliding portion 412 is located at the buffer portion 413. 13 and the limiting portion 411, and the diameters of the limiting portion 411 and the buffer portion 413 are larger than the diameter of the sliding portion 412, that is, the longitudinal section of the buffer rod 41 is a horizontal "H" shape, and the limiting fixing plate 11 is provided with a plurality of sliding openings 111 for sliding connection of each sliding portion 412, that is, no matter the buffer rod 41 moves upward under the driving force of the lifting seat 2 or moves downward under the influence of gravity, the buffer rod 41 will have a limit moving distance due to the limiting portion 411 and the buffer portion 413, so as to prevent the buffer rod 41 from being separated from the limiting fixing plate 11, thereby ensuring the integrity of this embodiment;

[0028] Each buffer assembly 42 corresponds to each buffer rod 41 and is located between each buffer rod 41 and the limiting fixing plate 11. Each buffer assembly 42 includes a first elastic member 421 and a second elastic member 422. The first elastic member 421 is located between the limiting portion 411 and the limiting fixing plate 11, and the second elastic member 422 is located between the buffer portion 413 and the limiting fixing plate 11. The first elastic member 421 and the second elastic member 422 are preferably compression springs, so that the buffer rod 41 will squeeze the first elastic member 421 during the upward movement. The first elastic member 421 and the second elastic member 422 deform to absorb energy. When the buffer rod 41 stops moving upward or the upward force is reduced to a certain extent, the first elastic member 421 and the second elastic member 422 begin to release the stored energy and convert the energy into mechanical energy or kinetic energy. In this process, the buffer rod 41 is gradually reset with the help of gravity, thereby alleviating the impact caused by the rise of the lifting seat 2 and avoiding the deformation of the limiting fixing plate 11 and the lifting seat 2 due to collision.

[0029] Furthermore, since the first elastic member 421 and the second elastic member 422 are respectively located at the two ends of the limiting fixing plate 11 , the buffer assembly 42 can play a double buffering role whether the buffer rod 41 rises or falls, so that the buffer assembly 42 has a better buffering effect.

[0030] At the same time, a plurality of reinforcing ribs 6 are provided between the end of the limiting fixing plate 11 away from the lifting seat 2 and the support frame 1, and a strong triangular structure is formed between the reinforcing ribs 6 and the limiting fixing plate 11 of the support frame 1, thereby improving the structural strength of the limiting fixing plate 11 itself and preventing the limiting fixing plate 11 from being deformed due to impact.

[0031] The lifting seat 2 is also provided with a receiving cavity 21 for installing the driving motor 3, that is, the driving motor 3 is fixedly connected inside the lifting seat 2, so as to avoid direct contact between the driving motor 3 and the buffer structure 4, which may cause damage to the driving motor 3; at the same time, since the driving motor 3 is fixedly connected inside the lifting seat 2, the vibration generated by the collision is unlikely to cause the driving motor to be displaced, thereby reducing the influence of the limiting fixing plate 11 or the buffer structure 4 on the driving motor 3 when colliding with the lifting seat 2.

[0032] The driving motor in this embodiment should preferably be a motor with a large output power, such as a hydraulic motor, so as to ensure that it can normally drive the drill rod to rotate.

[0033] like Figure 4-5 As shown, the lifting seat 2 in this embodiment includes a seat body 22 and a cover plate 23. The cover plate 23 is located at one end of the seat body 22 close to the limiting fixing plate 11 and is slidably connected to the seat body 22. The longitudinal section of the seat body 22 is a "U"-shaped structure, that is, the accommodating cavity 21 is opened on the seat body 22 and passes through one side of the seat body 22, and the cover plate 23 plays a role in covering the accommodating cavity 21. While ensuring the safety of the drive motor 3, it is also convenient for maintenance and inspection of the drive motor 3, thereby improving the practicality of this embodiment.

[0034] A plurality of fixing components 7 are provided between the cover plate 23 and the seat body 22, and the cover plate 23 is fixed to the seat body 22 by the fixing components 7 to prevent the cover plate 23 from being separated from the seat body 22 during operation of the present embodiment; each fixing component 7 includes a connecting hole 71, a fixing hole 72, and a fixing piece 73, and each fixing hole 72 corresponds to each connecting hole 71 one by one, and each connecting hole 71 is provided on the cover plate 23, and each fixing hole 72 is provided on the seat body 22 and passes through the connecting hole 71, and each fixing piece 73 is threadedly connected to each fixing hole 72 one by one, that is, the fixing component 7 in the present embodiment adopts a detachable fixing connection method such as a threaded connection to fix the cover plate 23, thereby facilitating the later maintenance and inspection work of the drive motor 3, and the fixing piece 73 is preferably a common threaded fastener on the market such as a bolt, and even if the fixing piece 73 is accidentally lost, a replacement can be quickly found to ensure the integrity of the overall structure of the present embodiment.

[0035] A buffer pad 5 is provided on one end of the buffer portion 413 close to the lifting seat 2. The buffer pad 5 is made of an elastic material. The elastic effect of the elastic material is used to buffer the impact force when the lifting seat 2 contacts the buffer rod 41, thereby preventing the lifting seat 2 or the buffer rod 41 from deforming after the lifting seat 2 hits the buffer rod 41 multiple times, thereby ensuring the stability of the overall structure of this embodiment. The elastic material constituting the buffer pad 5 is preferably a wear-resistant elastic material such as rubber, so as to increase the service life of the buffer pad 5.

[0036] Both ends of the cover plate 23 are provided with sliding bodies 231, and the base body 22 is provided with slideways 221 for the sliding bodies 231 to be slidably connected, that is, both ends of the cover plate 23 are slidably connected to the base body 22 in an embedded manner, thereby improving the stability of the connection between the cover plate 23 and the base body 22, and preventing the cover plate 23 from being deformed or even collapsed and tilted due to the buffering effect of multiple buffer rods 41 when contacting the buffer rods 41, thereby affecting the normal use of the cover plate 23.

[0037] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A long spiral drilling rig lifting device, comprising a support frame (1) and a lifting seat (2), wherein the lifting seat (2) is slidably connected to the support frame (1), and a limiting fixing plate (11) is provided on the support frame (1) for limiting the moving distance of the lifting seat (2), characterized in that: The lifting seat (2) is provided with a receiving cavity (21) for installing a driving motor (3); a buffer structure (4) is provided between the limiting fixing plate (11) and the lifting seat (2); the buffer structure (4) comprises a plurality of buffer rods (41) and a plurality of buffer components (42); each of the buffer rods (41) is slidably connected to the limiting fixing plate (11); each of the buffer components (42) corresponds to each of the buffer rods (41) and is located between each of the buffer rods (41) and the limiting fixing plate (11).

2. The long spiral drilling rig lifting device according to claim 1, characterized in that: Each of the buffer rods (41) comprises a limiting portion (411), a sliding portion (412), and a buffer portion (413); the sliding portion (412) is located between the buffer portion (413) and the limiting portion (411); and the limiting fixing plate (11) is provided with a plurality of sliding openings (111) for sliding connection of each sliding portion (412).

3. The long spiral drilling rig lifting device according to claim 2, characterized in that: Each of the buffer components (42) comprises a first elastic member (421) and a second elastic member (422); the first elastic member (421) is located between the limiting portion (411) and the limiting fixing plate (11); and the second elastic member (422) is located between the buffer portion (413) and the limiting fixing plate (11).

4. The long spiral drilling rig lifting device according to claim 3, characterized in that: A buffer pad (5) is provided on one end of the buffer portion (413) close to the lifting seat (2), and the buffer pad (5) is made of elastic material.

5. The long spiral drilling rig lifting device according to claim 1, characterized in that: A plurality of reinforcing ribs (6) are provided between the end of the position-limiting fixing plate (11) away from the lifting seat (2) and the support frame (1).

6. The long spiral drilling rig lifting device according to claim 1, characterized in that: The lifting seat (2) comprises a seat body (22) and a cover plate (23); the cover plate (23) is located at one end of the seat body (22) close to the limiting fixing plate (11) and is slidably connected to the seat body (22); and the longitudinal section of the seat body (22) is a "U"-shaped structure.

7. The long spiral drilling rig lifting device according to claim 6, characterized in that: Both ends of the cover plate (23) are provided with sliding bodies (231), and the seat body (22) is provided with a slideway (221) for sliding connection of the sliding body (231).

8. The long spiral drilling rig lifting device according to claim 6, characterized in that: A plurality of fixing components (7) are provided between the cover plate (23) and the base body (22), each of the fixing components (7) comprising a connecting hole (71), a fixing hole (72), and a fixing piece (73), each of the fixing holes (72) corresponding to each of the connecting holes (71) one by one, each of the connecting holes (71) being provided on the cover plate (23), each of the fixing holes (72) being provided on the base body (22) and penetrating the connecting hole (71), and each of the fixing pieces (73) being threadedly connected to each of the fixing holes (72) one by one.

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