Shaft blocking plate for hydraulic support

Abstract

The utility model discloses a shaft blocking plate for a hydraulic support, which is used for being installed on the side wall of a base of the hydraulic support and limiting axial movement of a hinge pin inserted into the base, the shaft blocking plate comprises a pin blocking ring and a baffle, the pin blocking ring is fixedly installed on the side wall of the base and located at the end of the hinge pin, and the baffle is arranged on the side wall of the base. And the baffle is clamped between the stop pin ring and the side wall of the base so as to stop the axial movement of the hinge pin. According to the arrangement, the stop pin ring is fixed to the two side walls of the base, the baffle is just pressed between the stop pin ring and the side walls of the base, the baffle is installed at the end of the hinge pin and can stop axial transmission of the hinge pin, and therefore stable work of the hydraulic support is guaranteed, and the stop pin ring and the baffle are simple and reliable in structure, low in manufacturing cost and convenient to use. The use cost of the hydraulic support can be effectively reduced; in addition, due to the fact that the baffle is integrally fixed to the end, used for installing the hinge pin, of the bottom frame through the stop pin ring, the baffle is not prone to being damaged due to the fact that the baffle is touched by other adjacent supports.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of mine hydraulic support, especially relates to a shaft blocking plate for hydraulic support. BACKGROUND

[0002] The hydraulic support is powered by hydraulic pressure to realize lifting, forward movement and other movements, and is a device for roof support, and is a core component of a comprehensive coal mining device. The base is a main component of the hydraulic support and is a main load-bearing component of the hydraulic support. The shaft blocking plate of the hydraulic support is an important component for fixing the pin shaft parts of the hydraulic support, which ensures that the hinged pin shaft installed on the base cannot move axially, thereby maintaining the stability and reliability of the hydraulic support. The conventional shaft blocking plate structure for the hydraulic support has low strength, and the blocking pin plate is easily collided with the adjacent frame during the movement of the hydraulic support, which causes the blocking pin plate to be damaged. The damage of the blocking pin plate causes the pin shaft to move out, which further causes the base to be damaged. Once the base blocking pin plate is damaged under the condition of the mine, the hydraulic support is invalid, which brings great risk to the safe and efficient mining of the mine.

[0003] Therefore, how to provide a shaft blocking plate with simple structure and not easy to be deformed and damaged during the movement of the hydraulic support is a technical problem to be solved by those skilled in the art at present. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a shaft blocking plate with simple structure and not easy to be deformed and damaged during the movement of the hydraulic support.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] A shaft blocking plate for a hydraulic support is used for being installed on the side wall of the base of the hydraulic support and limiting the axial movement of the hinged pin inserted into the base. The shaft blocking plate comprises a blocking pin ring and a blocking plate. The blocking pin ring is fixedly installed on the side wall of the base and located at the end of the hinged pin. The blocking plate is clamped between the blocking pin ring and the side wall of the base to block the axial movement of the hinged pin.

[0007] Preferably, the blocking pin ring is annular in structure and has a first through hole in the middle. The axis of the first through hole coincides with the axis of the hinged pin.

[0008] Preferably, a stepped portion is arranged on the side of the blocking pin ring close to the base. The stepped portion is used for pressing the blocking plate to make it fit the side wall of the base. The axial depth of the stepped portion matches the thickness of the blocking plate.

[0009] Preferably, the baffle plate is a semicircular structure, a bolt slot is arranged at the center of the baffle plate, the baffle plate is connected with the shaft of the hinge pin through a positioning bolt installed in the bolt slot, and a gasket is arranged between the positioning bolt and the hinge pin.

[0010] Preferably, two clamping portions are arranged on the inner wall of the baffle pin ring, the clamping portions are symmetrically arranged about the center of the baffle pin ring, a clamping protrusion is arranged on the side of the baffle plate away from the base, and the clamping protrusion is used for clamping one of the two clamping portions to limit the rotation of the baffle plate.

[0011] Preferably, the clamping portion and the clamping protrusion are both square in shape and are matched in size.

[0012] Preferably, the baffle pin ring is connected with the base through welding, and the clamping protrusion is welded on the baffle plate.

[0013] Preferably, the edges of the baffle pin ring and the baffle plate are chamfered, and the surfaces of the baffle pin ring and the baffle plate are painted.

[0014] Preferably, the material of the baffle pin ring is Q690 steel, and the material of the baffle plate is Q550 steel.

[0015] Preferably, a pressure sensor is arranged on the inner side of the baffle plate, the pressure sensor is used for detecting the axial force applied by the hinge pin on the baffle plate, a control assembly is arranged on the outer side of the baffle plate and is signal-connected with the pressure sensor, the control assembly is used for receiving the signal of the pressure sensor and issuing an alarm when the axial force reaches a preset value.

[0016] With respect to the above background, the utility model provides a baffle plate for a hydraulic support, which is arranged on the side wall of the base of the hydraulic support and is used for limiting the axial movement of the hinge pin inserted into the base, the baffle plate comprises a baffle pin ring and a baffle plate, the baffle pin ring is fixedly arranged on the side wall of the base and is located at the end of the hinge pin, and the baffle plate is clamped between the baffle pin ring and the side wall of the base to block the axial movement of the hinge pin.

[0017] Specifically, the baffle pin ring is fixed on the two side walls of the base and is located at the end of the hinge pin, and the baffle plate is clamped between the baffle pin ring and the side wall of the base, since the baffle pin ring is located at the end of the hinge pin, the baffle plate is also arranged at the end of the hinge pin, so that the baffle plate can block the axial transmission of the hinge pin, thereby ensuring the stable operation of the hydraulic support, and the baffle pin ring and the baffle plate are simple and reliable in structure and low in cost, thereby effectively reducing the use cost of the hydraulic support. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the description of the embodiments or the prior art. Obviously, the drawings described below are only a part of the embodiments of the present application, and not all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0019] Figure 1 The mounting state structure schematic diagram of the shaft blocking plate for the hydraulic support provided by the embodiment of the present application is shown in the figure.

[0020] Figure 2 The structure schematic diagram of the shaft blocking plate provided by the embodiment of the present application is shown in the figure.

[0021] Figure 3 The mounting explosion view of the shaft blocking plate provided by the embodiment of the present application is shown in the figure.

[0022] Figure 4 The front structure schematic diagram of the blocking pin ring provided by the embodiment of the present application is shown in the figure.

[0023] Figure 5 The back structure schematic diagram of the blocking pin ring provided by the embodiment of the present application is shown in the figure.

[0024] Figure 6 The structure schematic diagram of the blocking plate provided by the embodiment of the present application is shown in the figure.

[0025] Among them:

[0026] 01-base, 02-hinge pin;

[0027] 100-blocking pin ring, 110-first through hole, 120-step part, 130-engaging part;

[0028] 200-blocking plate, 210-bolt slot, 220-clamping protrusion;

[0029] 300-positioning bolt, 310-gasket. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings of the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0031] In order to make those skilled in the art better understand the present application, the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0032] In the description of the utility model, it needs to be understood that the orientation or position relation indicated by the terms such as ''up'', ''down'', ''front'', ''back'', ''left'' and ''right'' is based on the orientation or position relation shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as the limitation of the utility model.

[0033] The utility model aims at providing a simple structure, in the hydraulic support moving process, not easy to deform and damage the axle stop plate.

[0034] To achieve the above object, the utility model provides the following technical scheme:

[0035] Please refer to Figures 1 to 6 The utility model provides a kind of axle stop plate for hydraulic support, for installing in the side wall of the base 01 of hydraulic support, and for limiting the axial movement of hinged pin 02 inserted into base 01, axle stop plate includes: stop pin ring 100 and baffle 120, stop pin ring 100 is fixedly installed in the side wall of base 01, and located in the end of hinged pin 02, baffle 120 is clamped between stop pin ring 100 and the side wall of base 01, to block the axial movement of hinged pin 02.

[0036] Specifically, stop pin ring 100 is fixed on the two side walls of base 01, and is located in the end of hinged pin 02, at the same time, stop pin ring 100 and the side wall of base 01 are just pressed with baffle 120, since stop pin ring 100 is located in the end of hinged pin 02, baffle 120 is also installed to the end of hinged pin 02, in this way, baffle 120 can block the axial transmission of hinged pin 02, to ensure that hydraulic support works stably, and stop pin ring 100 and baffle 120 simple and reliable structure, low cost, can effectively reduce the use cost of hydraulic support;In addition, since baffle 120 in the utility model is integrally fixed on the end of hinged pin 02 for installing by stop pin ring 100, baffle 120 is not easy to be damaged by being touched by adjacent other support.

[0037] As preferred, stop pin ring 100 is annular structure, and first through hole 110 is arranged in the middle, and the axis of first through hole 110 coincides with the axis of hinged pin 02.

[0038] Specifically, as Figure 4 And Figure 5As shown, the blocking pin ring 100 in the embodiment is a whole annular structure, and a first through hole 110 is formed at the center position of the blocking pin ring 100. When the blocking pin ring 100 is installed, the center axis position of the first through hole 110 needs to be coincided with the axis of the installed hinge pin 02 on the chassis. In order to ensure that the blocking pin ring 100 can be stably pressed and installed with the blocking plate 120, so that the blocking plate 120 can stably play a blocking role, the diameter of the first through hole 110 is smaller than the diameter of the hinge pin 02.

[0039] The role of the blocking pin ring 100 in the embodiment is to clamp the blocking plate 120, that is, to fix the blocking plate 120 to the end of the hole of the installed hinge pin 02 of the chassis. In this way, the shape of the hole formed in the middle of the blocking pin ring 100 can be adjusted. In the embodiment, the first through hole 110 with a circular interface is formed in the middle of the blocking pin ring 100, and other shapes can also be formed, as long as they can clamp the blocking plate 120.

[0040] As preferred, a stepped portion 120 is arranged on the side of the blocking pin ring 100 close to the base 01, and the stepped portion 120 is used to press and install the blocking plate 120 to make it fit the side wall of the base 01. The axial depth of the stepped portion 120 matches the thickness of the blocking plate 120.

[0041] In the embodiment, as shown, Figure 5 On the inner side of the blocking pin ring 100, that is, on the side close to the side wall of the base 01, a stepped portion 120 is arranged at the edge of the first through hole 110, and the stepped portion 120 and the first through hole 110 form a stepped structure. In this way, when the blocking pin ring 100 is installed to the side wall of the base 01, the stepped portion 120 and the side wall will cooperate to form a ring-shaped area, and the blocking plate 120 in the embodiment will be clamped into the area. It should be noted that the depth and diameter of the stepped portion 120 need to be adjusted according to the diameter of the hole on the actual base 01 for installing the hinge pin 02 and the diameter of the blocking plate 120, so that the blocking pin ring 100 can completely clamp the blocking plate 120 into the area formed by the stepped portion 120 and the side wall of the base 01. In this way, after the installation of the blocking plate 120 is completed, the blocking plate 120 will not fall off, and the blocking plate 120 can stably play a role.

[0042] As preferred, the blocking plate 120 is a semicircular structure, and a bolt groove 210 is arranged at the center of the blocking plate 120. The blocking plate 120 is connected to the axis of the hinge pin 02 through a positioning bolt 330 installed in the bolt groove 210, and a gasket 310 is arranged between the positioning bolt 330 and the hinge pin 02.

[0043] In the embodiment, the blocking plate 120 is preferably a semicircular structure, and the specific structure is shown in Figure 6As shown; it can be understood that, since the hinge pin 02 is a columnar structure, only the setting of the baffle 120 can reduce the opening at the hole port of the hinge pin 02 installed on the base 01, therefore, no matter what shape the baffle 120 is, the axial limiting of the hinge pin 02 can be completed; but considering the structural strength of the baffle 120, it can withstand the axial force of the hinge pin 02, so as to prevent the baffle 120 from being damaged and losing the function of the baffle plate, and also considering the manufacturing cost of the baffle plate, the baffle plate is set to be semicircular in this embodiment, which not only ensures the structural strength of the baffle 120, but also reduces the production cost and difficulty.

[0044] In addition, in this embodiment, a positioning screw is also installed at the center of the end of the hinge pin 02, and a bolt groove 210 that can fit the outer periphery of the positioning screw is opened at the center of the baffle 120, so that the connection between the hinge pin 02 and the baffle 120 is strengthened, the limiting of the hinge pin 02 is more stable, and the installation of the baffle 120 is also strengthened, so that the baffle 120 is not easy to be separated from the baffle ring 100.

[0045] At the same time, a gasket is also sleeved on the positioning screw, and the gasket is located below the upper side of the screw head of the baffle 120, so that the positioning screw can be prevented from loosening, and the positioning screw can also be prevented from damaging the baffle 120 during compression.

[0046] As preferred, two clamping parts 130 are arranged on the inner wall of the baffle ring 100, and the clamping parts 130 are symmetrically arranged about the center of the baffle ring 100, and a clamping protrusion 220 is arranged on the side of the baffle 120 away from the base 01, and the clamping protrusion 220 is used for clamping one of the two clamping parts 130 to limit the rotation of the baffle 120.

[0047] Further, in order to prevent the baffle 120 from rotating in the baffle ring 100 and affecting the blocking effect of the hinge pin 02, clamping parts 130 are also opened on both side edges of the baffle ring 100, and the line connecting the two clamping parts 130 passes through the center, and a clamping protrusion 220 is fixed on the outer side of the baffle 120, it should be noted that the clamping protrusion 220 can be clamped to the inside of the clamping part 130 when the baffle 120 is installed, so that the baffle 120 cannot be rotated after installation.

[0048] As preferred, the shapes of the clamping part 130 and the clamping protrusion 220 are square, and the sizes of the two are matched.

[0049] In the embodiment, the shapes of the engaging portion 130 and the clamping protrusion 220 are preferably square, which can reduce the manufacturing difficulty of the baffle plate 120 and the blocking pin ring 100, and also can improve the manufacturing efficiency; it should be noted that the size of the clamping protrusion 220 should be slightly smaller than the size of the engaging portion 130, so as to ensure that the clamping protrusion 220 can cooperate with the engaging portion 130, and the height of the clamping protrusion 220 should not exceed the depth of the engaging portion 130, so as to prevent the clamping protrusion 220 from protruding from the blocking pin ring 100, thereby causing the baffle plate 120 to be easily collided by other devices.

[0050] Preferably, the blocking pin ring 100 is connected to the base 01 by welding, and the clamping protrusion 220 is welded to the baffle plate 120.

[0051] It can be understood that, in order to increase the installation strength of the blocking pin ring 100 and prevent the blocking pin plate from being damaged during use, the blocking pin ring 100 is installed by welding in the embodiment, and this connection method not only has high connection strength and stable connection, but also is simple and easy to operate; similarly, the connection method of the clamping protrusion 220 on the baffle plate 120 is also welding. Of course, the connection methods of the two can also be selected according to actual conditions, which are not limited in the present application as long as the connection strength is ensured.

[0052] Preferably, the edges of the blocking pin ring 100 and the baffle plate 120 are chamfered, and the surfaces thereof are painted.

[0053] In the embodiment, the edges of the blocking pin ring 100 and the baffle plate 120 at various positions are chamfered, which not only can prevent the edges from being too sharp to scratch the workers, but also can avoid stress concentration; in addition, in order to prolong the service life of the two and prevent them from rusting during use, the surfaces thereof are painted.

[0054] Preferably, the material of the blocking pin ring 100 is Q690 steel, and the material of the baffle plate 120 is Q550 steel.

[0055] In the embodiment, according to the actual strength requirement and the manufacturing cost, the material of the blocking pin ring 100 is preferably Q690 steel, and the material of the baffle plate 120 is preferably Q550 steel.

[0056] Preferably, a pressure sensor is arranged on the inner side of the baffle plate 120, the pressure sensor is used for detecting the axial force applied by the hinge pin 02 to the baffle plate 120, a control assembly connected with the pressure sensor is arranged on the outer side of the baffle plate 120, and the control assembly is used for receiving the signal of the pressure sensor and issuing an alarm when the axial force reaches a preset value.

[0057] In another embodiment, a pressure sensor can be arranged inside the baffle 120, and a control assembly can be arranged outside the baffle 120, the control assembly can receive the electric signal sent by the pressure sensor; when the articulated shaft is axially dislocated, the baffle 120 will be subjected to a greater force, when the pressure sensor detects that the force exceeds the preset value of the control assembly, the control assembly will send an alarm, so as to remind the staff, so as to play a role of pre-warning for the baffle shaft, the staff can adjust the hydraulic support at this time, so as to prevent the baffle 120 from being damaged during the working process of the hydraulic support, and the articulated pin 02 is dislocated.

[0058] It should be noted that the relative terms, such as first and second, in the present specification are only used to distinguish one entity from another entity, and do not necessarily require or imply any such actual relationship or order between the entities.

[0059] The embodiments in the present specification are described in a progressive manner, and each embodiment focuses on the difference from other embodiments, and the same or similar parts between the embodiments can be referred to each other.

[0060] The above provides a detailed introduction to the embodiments of the present application. The principle and implementation mode of the present application are described by applying specific examples. The above embodiment is only used to help understand the method and core idea of the present application. It should be pointed out that for ordinary skilled in the art, without departing from the principle of the present application, the present application can be improved and modified in several ways, and these improvements and modifications also fall within the protection scope of the present application.

Claims

1. A shaft stop plate for hydraulic support, for mounting on the side wall of the base (01) of the hydraulic support, and for limiting the axial movement of the hinge pin (02) inserted into the base (01), characterized in that, The blocking shaft plate comprises a blocking pin ring (100) and a blocking plate (200), the blocking pin ring (100) is fixedly installed on the side wall of the base (01) and located at the end of the hinge pin (02), and the blocking plate (200) is clamped between the blocking pin ring (100) and the side wall of the base (01) to block the axial movement of the hinge pin (02).

2. The shaft blocking plate for a hydraulic support according to claim 1, wherein The blocking pin ring (100) is in a ring structure, and a first through hole (110) is arranged in the middle of the ring structure, and the axis of the first through hole (110) coincides with the axis of the hinge pin (02).

3. The shaft blocking plate for a hydraulic support according to claim 2, wherein The blocking pin ring (100) is provided with a stepped portion (120) on the side close to the base (01), the stepped portion (120) is used for pressing the blocking plate (200) to make it fit the side wall of the base (01), and the axial depth of the stepped portion (120) matches the thickness of the blocking plate (200).

4. The shaft blocking plate for a hydraulic support according to claim 3, wherein The blocking plate (200) is in a semicircular structure, and a bolt groove (210) is arranged at the center of the semicircular structure, the blocking plate (200) is connected with the axis of the hinge pin (02) through a positioning bolt (300) installed in the bolt groove (210), and a gasket (310) is arranged between the positioning bolt (300) and the hinge pin (02).

5. The shaft blocking plate for a hydraulic support according to claim 4, wherein The inner wall of the blocking pin ring (100) is provided with two clamping portions (130), and the clamping portions (130) are symmetrically arranged about the center of the blocking pin ring (100), the side of the blocking plate (200) away from the base (01) is provided with a clamping protrusion (220), and the clamping protrusion (220) is used for clamping one of the two clamping portions (130) to limit the rotation of the blocking plate (200).

6. The shaft blocking plate for a hydraulic support according to claim 5, wherein The shapes of the clamping portions (130) and the clamping protrusion (220) are both square, and the sizes of the clamping portions (130) and the clamping protrusion (220) are matched.

7. The shaft blocking plate for a hydraulic support according to claim 5, wherein The blocking pin ring (100) is connected with the base (01) by welding, and the clamping protrusion (220) is welded on the blocking plate (200).

8. The shaft blocking plate for a hydraulic support according to any one of claims 1 to 7, characterized in that, The edges of the blocking pin ring (100) and the blocking plate (200) are chamfered, and the surfaces of the blocking pin ring (100) and the blocking plate (200) are painted.

9. The shaft blocking plate for a hydraulic support according to claim 7, wherein The material of the blocking pin ring (100) is Q690 steel, and the material of the blocking plate (200) is Q550 steel.

10. The shaft blocking plate for a hydraulic support according to claim 1, wherein A pressure sensor is arranged on the inner side of the blocking plate (200), the pressure sensor is used for detecting the axial force applied by the hinge pin (02) on the blocking plate (200), a control assembly connected with the pressure sensor is arranged on the outer side of the blocking plate (200), the control assembly is used for receiving the signal of the pressure sensor and sending an alarm when the axial force reaches a preset value.

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