Traction mechanism for coal mine drilling machine

Abstract

The utility model relates to the technical field of mine instruments, in particular to a traction mechanism for a coal mine drilling machine, which comprises a tractor, one end of the tractor is fixedly connected with a longitudinal hinge seat, one end of the longitudinal hinge seat is fixedly connected with a connecting plate, and one end of the connecting plate is fixedly connected with a transverse hinge seat; according to the design that the spring is installed in the reserved groove, even if the installation column abuts against the cylinder body, the spring can reserve enough deformation space for the reserved groove, the situation that the spring is damaged due to excessive compression is avoided, the purpose of prolonging the service life of the spring is achieved, meanwhile, the installation column is matched with the cylinder body so that the spring can be separated from the outside, and the service life of the spring is prolonged. Therefore, the damage probability of the spring is reduced, and the service life of the spring is further prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to mine instrument technical field, and especially relates to a traction mechanism for coal mine drilling machine. BACKGROUND

[0002] The coal mine drilling machine is the key equipment of coal mining, is divided into ordinary drilling machine and directional drilling machine, completes drilling operation through rotating drill rod and drill bit, has drilling accurate, fast, strong adaptability etc.

[0003] Chinese patent discloses traction mechanism for coal mine drilling machine and coal mine drilling machine (grant announcement number for CN204782748U), in order to use the bumpy uneven pit road surface, preferably, at least one of first pin shaft, second pin shaft, third pin shaft is set with compression spring, and both ends of the compression spring are respectively abutted on two components connected by the pin shaft. Therefore, the impact force on the corresponding pin shaft extension mode can be buffered through the compression spring. For example, when the first pin shaft is set with the compression spring, the impact of the drilling machine body and the power unit in the height direction can be buffered, and when the third pin shaft is set with the compression spring, the impact of the drilling machine body and the power unit in the width direction can be buffered.

[0004] Since the above-mentioned device directly sets the spring on a certain shaft pin for buffering and deceleration, however, the above-mentioned device does not limit the extension range of the spring, when the device is subjected to a larger impact force, the spring is easily compressed too much, which will cause irreversible damage to the spring, resulting in a decrease in the spring force, and even damage in severe cases, so that the spring cannot operate normally.

[0005] Therefore, a traction mechanism for coal mine drilling machine is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0006] The utility model aims at providing a traction mechanism for coal mine drilling machine to solve the above problems, and improves the problem that the traction mechanism for coal mine drilling machine with buffering function is easy to be damaged.

[0007] The utility model realizes the above-mentioned purpose through the following technical scheme, a traction mechanism for coal mine drilling machine, including: traction vehicle, one end of the traction vehicle is fixedly connected with longitudinal hinge seat, one end of the longitudinal hinge seat is fixedly connected with connecting plate, one end of the connecting plate is fixedly connected with transverse hinge seat;Two buffering mechanisms, two buffering mechanisms are fixedly connected to one end of longitudinal hinge seat and transverse hinge seat away from traction vehicle respectively.

[0008] Preferably, the buffer mechanism close to the tractor comprises a mounting column fixedly connected to one end of the longitudinal hinge seat, the surface of the mounting column is slidingly connected with a cylinder body fixedly connected with the connecting plate, one end of the mounting column is provided with a reserved groove, and the reserved groove is fixedly connected with a spring always in a compressed state between the cylinder body, the design that the spring is installed in the reserved groove can reserve enough deformation space for the reserved groove even if the mounting column and the cylinder body are in contact, at this time, the spring can avoid being damaged due to being excessively compressed, so as to prolong the service life of the spring, and meanwhile, the mounting column cooperates with the cylinder body to separate the spring from the outside, so as to reduce the probability of damage of the spring and further prolong the service life of the spring.

[0009] Preferably, the surface of the mounting column is fixedly connected with a sliding ring slidingly connected with the cylinder body, the surface of the sliding ring is provided with guide ports, the number of the guide ports is not less than ten, and the cross-sectional shape of the guide ports is hourglass-shaped; the design that the hourglass-shaped guide ports cooperate with the damping liquid can further reduce the moving speed of the mounting column relative to the cylinder body by increasing the resistance of the damping liquid passing through the guide ports, which can further reduce the impact force or the moving speed, so as to improve the buffering protection effect on the coal mine drilling machine.

[0010] Preferably, the inside of the cylinder body is filled with damping liquid and liquid rust inhibitor; the liquid rust inhibitor can reduce the probability of rusting the spring by the damping liquid, so as to prolong the service life of the spring.

[0011] Preferably, a sealing ring is embedded and mounted in the opening of the cylinder body, the sealing ring is sleeved on the surface of the mounting column, and the sealing ring can not only prevent the damping liquid in the cylinder body from leaking outward, but also prevent dust on the surface of the mounting column from being brought into the inside of the cylinder body, so as to ensure that the mounting column can normally move in the inside of the cylinder body.

[0012] Preferably, the surface of the mounting column is sleeved with a protective sleeve fixedly connected with the cylinder body, the opening of the cylinder body is arranged on the inside of the protective sleeve, the cross-sectional shape of the protective sleeve is wave-shaped, and the protective sleeve is a rubber material member; this can prevent the mounting column entering and exiting the inside of the cylinder body from locally adhering dust, so as to reduce the blocking burden of the sealing ring.

[0013] The beneficial effects of the utility model are:

[0014] The design that the spring is installed in the reserved groove can reserve enough deformation space for the reserved groove even if the mounting column and the cylinder body are in contact, at this time, the spring can avoid being damaged due to being excessively compressed, so as to prolong the service life of the spring, and meanwhile, the mounting column cooperates with the cylinder body to separate the spring from the outside, so as to reduce the probability of damage of the spring and further prolong the service life of the spring;

[0015] The sandglass-shaped guide port cooperates with the damping liquid, which can further reduce the moving speed of the mounting column compared with the cylinder by increasing the resistance of the damping liquid passing through the guide port, which can further reduce the impact force or the moving speed, so as to improve the buffering protection effect on the coal mine drilling machine. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a schematic view of the connection of the whole structure of the utility model and the coal mine drilling machine.

[0017] Figure 2 It is a schematic view of the structure of the local structure of the utility model.

[0018] Figure 3 It is a sectional view of the local structure of the utility model.

[0019] Figure 4 It is an exploded schematic view of the buffering mechanism of the utility model.

[0020] Figure 5 It is Figure 3 An enlarged view of A.

[0021] In the figure: 1, towing vehicle; 2, longitudinal hinge seat; 3, connecting plate; 4, transverse hinge seat; 5, buffering mechanism; 51, mounting column; 52, cylinder; 53, reserved groove; 54, spring; 55, slip ring; 56, guide port; 57, sealing ring; 58, protective sleeve. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0023] In specific implementation: as Figures 1-5 shown, a towing mechanism for a coal mine drilling machine, comprising: a towing vehicle 1, one end of the towing vehicle 1 is fixedly connected with a longitudinal hinge seat 2, one end of the longitudinal hinge seat 2 is fixedly connected with a connecting plate 3, one end of the connecting plate 3 is fixedly connected with a transverse hinge seat 4; two buffering mechanisms 5, the two buffering mechanisms 5 are respectively fixedly connected to one end of the longitudinal hinge seat 2 and the transverse hinge seat 4 away from the towing vehicle 1, the working principle of the towing vehicle 1 is to use the power and traction of the vehicle itself to tow large equipment to a designated location, which is a common towing equipment at present and is a known technology in the art;

[0024] The structure of the longitudinal hinge seat 2 and the transverse hinge seat 4 is the same, the longitudinal hinge seat 2 comprises a U-shaped seat, one end of the U-shaped seat is inserted with a shaft pin, one end of the shaft pin penetrates out of the U-shaped seat, the surface of the shaft pin is inserted with a shaft pin snap spring, and the surface of the shaft pin is rotatably connected with a rotating sleeve arranged in the U-shaped seat, the difference between the longitudinal hinge seat 2 and the transverse hinge seat 4 lies in that the shaft center lines of the shaft pin, the U-shaped seat and the rotating sleeve in the longitudinal hinge seat 2 are parallel to the horizontal plane, the shaft center lines of the shaft pin, the U-shaped seat and the rotating sleeve in the transverse hinge seat 4 are perpendicular to the horizontal plane, the flanges are fixedly connected at the opposite ends of the U-shaped seat close to the tractor 1 and away from the cylinder body 52, the surface of the flange is inserted with a bolt, and the flange close to the tractor 1 is fixedly connected with the tractor 1 through the bolt, and the flange away from the tractor 1 is fixedly connected with the coal mine drilling machine through the bolt;

[0025] When the tractor 1 needs to tow and transport the coal mine drilling machine to the corresponding position, the staff first fixes the two flanges with the tractor 1 and the coal mine drilling machine through the bolts, at this time, the tractor 1 can tow and transport the coal mine drilling machine through the flange close to the tractor 1, the longitudinal hinge seat 2, the buffer mechanism 5 close to the tractor 1, the connecting plate 3, the transverse hinge seat 4, the buffer mechanism 5 away from the tractor 1 and the flange away from the tractor 1, in this process, the longitudinal hinge seat 2 can meet the up-and-down movement of the tractor 1 compared with the coal mine drilling machine, so that the tractor 1 can tow and transport the coal mine drilling machine in the environment of road surface ups and downs, the transverse hinge seat 4 can meet the horizontal rotation of the tractor 1 compared with the coal mine drilling machine, so that the tractor 1 can quickly adjust the towing and transporting direction of the coal mine drilling machine.

[0026] As shown in Figure 3 , Figure 4 and Figure 5 , the buffer mechanism 5 close to the tractor 1 comprises a mounting column 51 fixedly connected to one end of the longitudinal hinge seat 2, the surface of the mounting column 51 is slidably connected with a cylinder body 52 fixedly connected with the connecting plate 3, one end of the mounting column 51 is provided with a reserved slot 53, and the reserved slot 53 is fixedly connected with a spring 54 always in a compressed state between the mounting column 51 and the cylinder body 52; the surface of the mounting column 51 is sleeved with a protective sleeve 58 fixedly connected with the cylinder body 52, and the opening of the cylinder body 52 is arranged at the inner side of the protective sleeve 58; the cross-sectional shape of the protective sleeve 58 is wave-shaped, and the protective sleeve 58 is a rubber material member.

[0027] As shown in Figure 3 , Figure 4 and Figure 5As shown, the surface of the mounting column 51 is fixedly connected with the sliding ring 55 which is slidingly connected with the cylinder body 52, the surface of the sliding ring 55 is provided with guide openings 56; the guide openings 56 are not less than ten, and the cross-sectional shape of the guide openings 56 is hourglass-shaped; the inside of the cylinder body 52 is filled with damping liquid and liquid rust inhibitor; the opening inside of the cylinder body 52 is embeddedly provided with the sealing ring 57 which is sleeved on the surface of the mounting column 51.

[0028] In the process that the mounting column 51 moves relative to the cylinder body 52, the mounting column 51 synchronously drives the sliding ring 55 to move, at this time, the damping liquid squeezed by the sliding ring 55 needs to pass through the sliding ring 55 only through the guide openings 56, and since the cross-sectional shape of the guide openings 56 is hourglass-shaped, the flow resistance of the damping liquid is increased, the moving speed of the mounting column 51 relative to the cylinder body 52 is effectively reduced, and the impact force or the moving speed can be further reduced, so that the buffering protection effect of the coal mine drilling machine is improved.

[0029] In use, when the tractor 1 brakes and slows down, the coal mine drilling machine is pressed to the direction of the tractor 1 under the action of inertia, the cylinder body 52 compresses the spring 54 matched with the mounting column 51, and in this process, the spring 54 changes shape, the deformation of the spring 54 can slow down the impact force or the moving speed of the coal mine drilling machine, and the purpose of buffering and protecting the coal mine drilling machine is achieved.

[0030] In the process that the spring 54 is stretched and contracted, since a part of the spring 54 is arranged in the inside of the reserved groove 53, even if the mounting column 51 and the cylinder body 52 are in contact, the spring 54 can also reserve enough deformation space for the reserved groove 53, so that the spring 54 is prevented from being damaged due to excessive compression, the service life of the spring 54 is prolonged, the spring 54 is separated from the outside by the mounting column 51 matched with the cylinder body 52, the probability of damage of the spring 54 is reduced, and the service life of the spring 54 is further prolonged.

[0031] It should be noted that the tractor 1, the coal mine drilling machine, the damping liquid and the rust inhibitor in the above description are all relatively mature devices in the prior art, and the specific model can be selected according to actual needs, and the tractor 1 and the coal mine drilling machine can be powered by built-in power supply or mains power supply, and the specific power supply mode is selected as needed, which will not be described here.

[0032] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the specification is described in this way only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. A traction mechanism for a coal mine drilling rig, characterized in that, include: A tractor (1) is fixedly connected to a longitudinal hinge seat (2) at one end, a connecting plate (3) is fixedly connected to one end of the longitudinal hinge seat (2), and a transverse hinge seat (4) is fixedly connected to one end of the connecting plate (3). Two buffer mechanisms (5) are fixedly connected to the longitudinal hinge seat (2) and the transverse hinge seat (4) at the ends facing away from the tractor (1), respectively. Among them, the buffer mechanism (5) near the tractor (1) includes a mounting post (51) fixedly connected to one end of the longitudinal hinge seat (2), and a cylinder (52) fixedly connected to the connecting plate (3) is slidably connected to the surface of the mounting post (51). A reserved groove (53) is provided at one end of the mounting post (51), and a spring (54) that is always in a compressed state is fixedly connected between the reserved groove (53) and the cylinder (52).

2. The traction mechanism for a coal mine drilling rig according to claim 1, characterized in that: The mounting post (51) is fixedly connected to a slip ring (55) that is slidably connected to the cylinder body (52), and the slip ring (55) has a guide port (56) on its surface.

3. The traction mechanism for a coal mine drilling rig according to claim 2, characterized in that: There are no fewer than ten guide ports (56), and the cross-sectional shape of the guide ports (56) is hourglass-shaped.

4. The traction mechanism for a coal mine drilling rig according to claim 1, characterized in that: The cylinder body (52) is filled with damping fluid and liquid rust inhibitor.

5. The traction mechanism for a coal mine drilling rig according to claim 1, characterized in that: A sealing ring (57) is embedded in the inner side of the opening of the cylinder (52), and the sealing ring (57) is sleeved on the surface of the mounting post (51).

6. The traction mechanism for a coal mine drilling rig according to claim 1, characterized in that: The surface of the mounting post (51) is fitted with a protective sleeve (58) that is fixedly connected to the cylinder body (52), and the opening of the cylinder body (52) is located inside the protective sleeve (58).

7. A traction mechanism for a coal mine drilling rig according to claim 6, characterized in that: The protective sleeve (58) has a wavy cross-sectional shape and is made of rubber material.

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