Auxiliary pulling device for stepping self-moving end hydraulic support

Abstract

The utility model relates to an auxiliary pulling device for a stepping self-moving end hydraulic support, and belongs to the technical field of fully-mechanized coal mining supporting. Comprising two pulling and moving seats, the two pulling and moving seats are arranged on the left side and the right side of the reversed loader respectively, the two sides of the reversed loader are each provided with a set of reversed loader lug plates, and the two pulling and moving seats are connected with the two sets of reversed loader lug plates through first pin shafts respectively; the two pulling seats are respectively arranged on the front sides of two bases of the end hydraulic support; two connectors are arranged on the rear side of each pulling seat through second pin shafts, and a push-pull jack is arranged between each connector and the base on the same side; the problem that at present, an existing coal mine end support cannot stably and safely move forwards is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of coal fully-mechanized mining support, and in particular relates to an auxiliary pulling and moving device for a self-moving end hydraulic support. Background Art

[0002] During the coal mining process, the upper and lower end supports of the coal mining face are an important part of ensuring safe production. However, traditional support methods, such as "four pairs of eight beams" combined with single support or articulated top beams combined with single pillars, have many limitations. With the continuous advancement of coal mining technology and the increasing requirements for safe production, traditional support methods can no longer meet the needs of modern coal mining. Therefore, the development of new self-moving end supports has become a hot topic and trend in the industry. The self-moving end hydraulic support is used in conjunction with comprehensive mining equipment such as coal mining machines and scraper conveyors to achieve efficient and continuous mining operations. However, the existing equipment cannot achieve the stable and safe movement of the end hydraulic support, so a device is needed to achieve the self-movement of the end hydraulic support. Utility Model Content

[0003] The utility model overcomes the shortcomings of the prior art and proposes an auxiliary pulling and moving device for a self-moving end hydraulic support, which solves the problem that the current coal mine end support cannot move forward stably and safely.

[0004] In order to achieve the above-mentioned purpose, the present invention is implemented through the following technical solutions.

[0005] An auxiliary pulling device for a self-moving end hydraulic support comprises two pulling seats, which are respectively arranged on the left and right sides of a transfer machine. A group of transfer machine ear plates are respectively arranged on both sides of the transfer machine, and the two pulling seats are respectively connected to the two groups of transfer machine ear plates through a first pin shaft; the two pulling seats are respectively arranged on the front sides of the two bases of the end hydraulic support; two connecting heads are arranged on the rear side of each pulling seat through a second pin shaft, and a push-pull jack is arranged between each connecting head and the base on the same side.

[0006] Furthermore, two upper and lower transfer machine ear plates are respectively provided on the left and right sides of the transfer machine. The transfer machine ear plates are kept horizontally arranged, and two first pin shaft holes distributed front and back are provided on the transfer machine ear plates.

[0007] Furthermore, the pulling seat is a box-type structure, including a top plate and a bottom plate distributed up and down, and the top plate and the bottom plate are both horizontally arranged square plate structures, and two front and rear first pin shaft holes are provided on the top plate and the bottom plate; the front and rear sides of the top plate and the bottom plate are fixedly connected by a fixing plate; two left-right symmetrical pulling ear plates are fixedly provided on the rear side of the upper end surface of the top plate, and the pulling ear plates are located in a vertical plane in the front-to-back direction, and two upper and lower second pin shaft holes are provided on each pulling ear plate.

[0008] Furthermore, the pull-slide seat is located between the upper and lower transfer machine ear plates on the same side, and the two first pin holes on the pull-slide seat correspond to the first pin holes on the transfer machine ear plates. The two first pins pass through the two first pin holes on the pull-slide seat and the first pin holes on the upper and lower transfer machine ear plates respectively, thereby fixing the pull-slide seat to the transfer machine ear plates on the same side.

[0009] Furthermore, the front end of the connector is provided with a second pin shaft hole that passes through from left to right, and the rear end of the connector is provided with two third pin shaft holes that pass through from top to bottom.

[0010] Furthermore, the second pin hole at the front end of the connecting head on the upper side extends between the second pin holes on the upper sides of the two pulling ear plates, and the second pin hole at the front end of the connecting head on the lower side extends between the second pin holes on the lower sides of the two pulling ear plates. The second pin hole on the connecting head is connected to the second pin hole on the pulling ear plate through a second pin.

[0011] Furthermore, a base ear plate is fixedly provided at the front end of the base of the end hydraulic support. The base ear plate is located in a vertical plane in the front-to-back direction. Two upper and lower fourth pin shaft holes are provided on the base ear plate.

[0012] Furthermore, the two push-pull jacks located on the same side are distributed up and down, and the push-pull jacks are horizontally arranged along the front and rear directions. The piston rod of the push-pull jack on the upper side is connected to the two third pin holes of the connecting head on the upper side through the third pin shaft, and one end of the cylinder bottom of the push-pull jack on the upper side is connected to the fourth pin hole on the upper side of the base ear plate through the fourth pin shaft; the piston rod of the push-pull jack on the lower side is connected to the two third pin holes of the connecting head on the lower side through the third pin shaft, and one end of the cylinder bottom of the push-pull jack on the lower side is connected to the fourth pin hole on the lower side of the base ear plate through the fourth pin shaft.

[0013] The beneficial effects of the present invention compared to the prior art are as follows:

[0014] 1. The auxiliary pulling and moving device of the self-moving end hydraulic support of the utility model has the function of moving forward by itself, and can automatically adjust its position as the scraper advances without frequent manual intervention.

[0015] 2. The utility model adopts the hydraulic system as the power source, and drives the hydraulic cylinder through the high-pressure emulsion to achieve the pushing and supporting functions. The hydraulic system and stable support structure ensure the safety and stability of the pushing process.

[0016] 3. The auxiliary pulling and moving device of the self-propelled hydraulic support of this utility model is directly connected to the transfer machine, ensuring a stable connection between the two. The transfer machine is used to guide the movement direction of the device, ensuring the smoothness and accuracy of the movement process.

[0017] 4. The utility model of the self-moving end hydraulic support auxiliary pulling device can adapt to different geological conditions and working conditions, especially in the self-movement of the three soft coal seams and the inclined channel with a climbing angle of no more than 25°. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described in detail below with reference to the accompanying drawings:

[0019] Figure 1 It is a side view of the utility model as a whole;

[0020] Figure 2 It is a top view of the utility model as a whole;

[0021] Figure 3 It is a three-dimensional schematic diagram of the utility model;

[0022] Figure 4 It is a schematic diagram of the connection between the single-sided pull-sliding seat, push-pull jack, and base;

[0023] Figure 5 It is a three-dimensional schematic diagram of the pull-shift seat;

[0024] Among them, 1 is the pulling seat, 2 is the connecting head, 3 is the push-pull jack, 4 is the base, 5 is the transfer machine, 6 is the first pin shaft, 7 is the second pin shaft, 8 is the third pin shaft, 9 is the fourth pin shaft, 11 is the pulling ear plate, 12 is the bottom plate, 13 is the top plate, 41 is the base ear plate, and 51 is the transfer machine ear plate. DETAILED DESCRIPTION

[0025] In order to make the technical problems, technical solutions, and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail with reference to the embodiments and accompanying drawings. It should be understood that the specific embodiments described herein are merely for the purpose of explaining the present invention and are not intended to limit the present invention. The technical solutions of the present invention will be described in detail below with reference to the embodiments and accompanying drawings, but the scope of protection is not limited thereto.

[0026] like Figure 1As shown in FIG5 , the utility model provides an auxiliary pulling device for a self-moving end hydraulic support, comprising two pulling seats 1, which are respectively arranged on the left and right sides of a transfer machine 5, and a group of transfer machine ear plates 51 are respectively arranged on both sides of the transfer machine 5, and the two pulling seats 1 are respectively connected to the two groups of transfer machine ear plates 51 through a first pin shaft 6; the two pulling seats 1 are respectively arranged on the front sides of the two bases 4 of the end hydraulic support; two connecting heads 2 are provided on the rear side of each pulling seat 1 through a second pin shaft 7, and a push-pull jack 3 is provided between each connecting head 2 and the base 4 on the same side.

[0027] Two upper and lower transfer machine ear plates 51 are respectively provided on the left and right sides of the transfer machine 5. The transfer machine ear plates 51 are kept horizontally arranged. Two first pin shaft holes distributed front and back are provided on the transfer machine ear plates 51.

[0028] The pull-and-slide seat 1 is a box-like structure, comprising a top plate 13 and a bottom plate 12, each of which is a horizontally arranged square plate-like structure. Two first pin holes are provided on each of the top plate 13 and the bottom plate 12. The front and rear sides of the top plate 13 and the bottom plate 12 are fixedly connected by a fixing plate. Two symmetrical pull-and-slide lugs 11 are fixedly mounted on the rear side of the upper end surface of the top plate 13. These pull-and-slide lugs 11 are located in a vertical plane in the front-to-back direction, and each pull-and-slide lug 11 is provided with two second pin holes, one above the other.

[0029] The pulling seat 1 is located between the upper and lower transfer machine ear plates 51 on the same side. The two first pin holes on the pulling seat 1 correspond to the first pin holes on the transfer machine ear plates 51. The two first pins 6 pass through the two first pin holes on the pulling seat 1 and the first pin holes on the upper and lower transfer machine ear plates 51 respectively, thereby fixing the pulling seat 1 to the transfer machine ear plates 51 on the same side.

[0030] The front end of the connector 2 is provided with a second pin hole extending horizontally therethrough, and the rear end of the connector 2 is provided with two third pin holes extending vertically therethrough. The second pin hole at the front end of the upper connector 2 extends between the second pin holes on the upper sides of the two pull lugs 11, and the second pin hole at the front end of the lower connector 2 extends between the second pin holes on the lower sides of the two pull lugs 11. The second pin hole on the connector 2 is connected to the second pin holes on the pull lugs 11 via a second pin 7.

[0031] A base ear plate 41 is fixedly provided at the front end of the base 4 of the end hydraulic support. The base ear plate 41 is located in a vertical plane in the front-to-back direction. Two upper and lower fourth pin holes are provided on the base ear plate 41.

[0032] The two push-pull jacks 3 on the same side are distributed up and down, and the push-pull jacks 3 are horizontally arranged along the front and rear directions. The piston rod of the push-pull jack 3 on the upper side is connected to the two third pin holes of the upper connecting head 2 through the third pin shaft 8, and one end of the cylinder bottom of the push-pull jack 3 on the upper side is connected to the fourth pin hole on the upper side of the base ear plate 41 through the fourth pin shaft 9; the piston rod of the push-pull jack 3 on the lower side is connected to the two third pin holes of the lower connecting head 2 through the third pin shaft 8, and one end of the cylinder bottom of the push-pull jack 3 on the lower side is connected to the fourth pin hole on the lower side of the base ear plate 41 through the fourth pin shaft 9.

[0033] The push-pull jack 3 is a digital jack with a stroke sensor, and the distance moved by the push-pull jack 3 can be monitored at any time on the working surface hydraulic support monitoring system platform.

[0034] The working principle of this utility model is:

[0035] With the support of the transfer machine ear plate 51 on the transfer machine 5, under the action of the push-pull jack 3, the hydraulic support moves ahead, and is connected to the transfer machine ear plates 51 on both sides of the transfer machine 5 by pulling the shift seat 1, so that a certain space is formed between the base 4 of the end support hydraulic support and the transfer machine 5, and the hydraulic supports on both sides of the transfer machine 5 maintain a parallel forward moving posture. The push-pull jack 3 is telescopically adjusted to adjust the position and posture of the end support, effectively realizing the stable and safe movement of the end hydraulic support with the transfer machine 5.

[0036] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A self-propelled hydraulic support auxiliary pulling device, characterized by: The invention comprises two pull-shift seats (1), the two pull-shift seats (1) are respectively arranged on the left and right sides of the transfer machine (5), a group of transfer machine ear plates (51) are respectively arranged on both sides of the transfer machine (5), and the two pull-shift seats (1) are respectively connected to the two groups of transfer machine ear plates (51) through a first pin shaft (6); the two pull-shift seats (1) are respectively arranged on the front sides of the two bases (4) of the end hydraulic support; two connectors (2) are respectively arranged on the rear side of each pull-shift seat (1) through a second pin shaft (7), and a push-pull jack (3) is arranged between each connector (2) and the base (4) on the same side.

2. The auxiliary pulling and moving device of the hydraulic support with self-moving end portion according to claim 1 is characterized in that: Two upper and lower distributed transfer machine ear plates (51) are respectively provided on the left and right sides of the transfer machine (5), the transfer machine ear plates (51) are kept horizontally arranged, and two first pin holes distributed front and back are provided on the transfer machine ear plates (51).

3. The auxiliary pulling and moving device of the hydraulic support for self-moving end head according to claim 2 is characterized in that: The pulling seat (1) is a box-type structure, including a top plate (13) and a bottom plate (12) distributed up and down, the top plate (13) and the bottom plate (12) are both horizontally arranged square plate structures, and two first pin shaft holes are provided on the top plate (13) and the bottom plate (12); the front and rear sides of the top plate (13) and the bottom plate (12) are fixedly connected by a fixing plate; two left-right symmetrical pulling ear plates (11) are fixedly provided on the rear side of the upper end surface of the top plate (13), the pulling ear plates (11) are located in a vertical plane in the front-back direction, and two second pin shaft holes are provided on each pulling ear plate (11).

4. The auxiliary pulling and moving device of the hydraulic support for self-moving end head according to claim 3 is characterized in that: The pull-slide seat (1) is located between the upper and lower transfer machine ear plates (51) on the same side. The two first pin holes on the pull-slide seat (1) correspond to the first pin holes on the transfer machine ear plates (51). The two first pins (6) respectively pass through the two first pin holes on the pull-slide seat (1) and the first pin holes on the upper and lower transfer machine ear plates (51), thereby fixing the pull-slide seat (1) to the transfer machine ear plates (51) on the same side.

5. The auxiliary pulling and moving device of the hydraulic support for self-moving end head according to claim 4 is characterized in that: The front end of the connector (2) is provided with a second pin shaft hole that passes through left and right, and the rear end of the connector (2) is provided with two third pin shaft holes that pass through up and down.

6. The auxiliary pulling and moving device of the hydraulic support for self-moving end head according to claim 5, characterized in that: The second pin hole at the front end of the upper connector (2) extends between the second pin holes on the upper sides of the two pull ear plates (11), and the second pin hole at the front end of the lower connector (2) extends between the second pin holes on the lower sides of the two pull ear plates (11). The second pin hole on the connector (2) and the second pin hole on the pull ear plate (11) are connected via a second pin (7).

7. The auxiliary pulling and moving device of the hydraulic support for self-moving end head according to claim 6 is characterized in that: A base ear plate (41) is fixedly provided at the front end of the base (4) of the end hydraulic support. The base ear plate (41) is located in a vertical plane in the front-back direction. Two upper and lower fourth pin holes are provided on the base ear plate (41).

8. The auxiliary pulling and moving device of the hydraulic support for self-moving end head according to claim 7 is characterized in that: The two push-pull jacks (3) on the same side are distributed up and down, and the push-pull jacks (3) are arranged horizontally along the front-back direction. The piston rod of the push-pull jack (3) on the upper side is connected to the two third pin holes of the upper connector (2) through the third pin shaft (8), and one end of the cylinder bottom of the push-pull jack (3) on the upper side is connected to the fourth pin hole on the upper side of the base ear plate (41) through the fourth pin shaft (9); the piston rod of the push-pull jack (3) on the lower side is connected to the two third pin holes of the lower connector (2) through the third pin shaft (8), and one end of the cylinder bottom of the push-pull jack (3) on the lower side is connected to the fourth pin hole on the lower side of the base ear plate (41) through the fourth pin shaft (9).

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