Pneumatic spring combination switch

Abstract

The present invention discloses a pneumatic spring combined switch, comprising a box body seat (1), a box body (2) being provided on the box body seat (1), a swing cylinder (4) being installed in the box body (2), a swing cylinder shaft (20) being installed on the swing seat (11) of the swing cylinder (4), a rotating plate (5) being installed at the end of the swing cylinder shaft (20), the rotating plate (5) being composed of an angled rotating arm I (501) and a rotating arm II (502), the rotating arm I (501) being connected to one end of a tension spring (9) through a rotating plate pull pin (10), the tension spring (9) being located above the rotating plate (5), the rotating arm II (502) being installed with a joint bearing (16) through a joint bearing pin (12), the joint bearing (16) being located below the rotating plate (5). The switch has a compact structure, reliable positioning, convenient installation, and easy operation, and is a further improvement and enhancement of underground auxiliary transportation system facilities.

Description

Technical Field

[0001] The invention relates to the field of coal mine transportation machinery and processing, and in particular to a switchman applied to an underground mine rail transportation system. Background Art

[0002] A turnout is a line connection device that allows locomotives and vehicles to transfer from one track to another. It is also one of the weak links of the track. It is usually laid in large quantities at stations and marshaling yards. With turnouts, the line's capacity can be fully utilized. Even for single-track railways, laying turnouts and building a fork line that is longer than the length of the train can allow trains to run in opposite directions. Turnouts play an important role on railway lines.

[0003] At present, with the gradual upgrading of mine rail transport control system standards, new requirements have been put forward for the updating, standardization and upgrading of the control facilities of the transportation system. Safety, standardization, reliable control and convenient operation are listed as standard requirements. Summary of the invention

[0004] The purpose of the present invention is to provide a novel turnout switch for underground rail transportation operation in mines.

[0005] The present invention is achieved by adopting the following technical solutions:

[0006] A pneumatic spring combination switch, including a box seat, a box body is provided on the box seat, a swing cylinder is installed in the box body, a swing cylinder shaft is installed on the swing seat of the swing cylinder, a rotating plate is installed on the end of the swing cylinder shaft, the rotating plate is composed of an angled swing arm I and a swing arm II, the swing arm I is connected to one end of a tension spring through a rotating plate pull pin, the tension spring is located above the rotating plate, the swing arm II is installed with a joint bearing through a joint bearing pin, and the joint bearing is located below the rotating plate; the joint bearing is fixedly connected to one end of a pull rod, and the other end of the pull rod is fixedly installed with an external Harp after passing through the pull rod hole of the box body; the other end of the tension spring is connected to a linear bearing sleeve through a bearing sleeve pin, the linear bearing sleeve is installed outside the linear bearing, the linear bearing is installed on the linear optical axis, and the two ends of the linear optical axis are respectively installed on the box body through shaft supports; a box cover is installed on the box body.

[0007] During operation, the cylinder drives the swing cylinder shaft to swing left and right, and then drives the rotating plate shaft to rotate. The rotating plate then drives the pull rod to reciprocate from the extended state to the retracted state, and drives the rotating plate to drive the switch to move. Since the fixed center of the tension spring installed on the rotating plate and the rotation center of the rotating plate are designed with a certain eccentricity, when the rotating plate rotates, the distance between the hanging spring pin on the rotating plate and the center of the tension spring changes according to the rotation position. The farthest point is selected as the middle point of the switch movement stroke, and then the two symmetrical points before and after this point are selected as the starting point and end point of the switch movement stroke. According to the trajectory that the distance between the middle point, the starting point and the end point changes from long to short relative to the fixed center of the tension spring, the tension spring contraction function is used to achieve positioning and locking.

[0008] The switchman of the present invention converts the rotational stroke of the rotating plate into linear displacement through the pull rod and the Ha-Bah hinge mechanism according to the working condition requirements of the switch opening and closing displacement, thereby completing the opening and closing displacement control of the switch. The positioning of the starting point and the end point is automatically locked by the tension spring mechanism on the rotating plate.

[0009] The invention has reasonable design, compact track switch structure, reliable positioning, convenient installation and easy operation, which is a further improvement and enhancement of the underground auxiliary transportation system facilities and has good practical application value. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It shows the cross-sectional side view of the switchman.

[0011] Figure 2 Shows the top view of the switchman.

[0012] Figure 3 It shows the top view of the switchman (the box base is not shown).

[0013] Figure 4 Represents the side view of the (hole type) swivel cylinder.

[0014] Figure 5 Shows the top view of the (hole type) swivel cylinder.

[0015] Figure 6 A schematic diagram of a spherical plain bearing is shown.

[0016] Figure 7 Schematic diagram showing the pull rod in a stretched state.

[0017] Figure 8 Schematic diagram showing the pull rod in the retracted position.

[0018] Fig. 9 Schematic diagram showing the pull rod in the middle state.

[0019] In the figure: 1-box seat, 2-box, 3-box cover, 4-swing cylinder, 5-rotating plate, 501-rotating arm I, 502-rotating arm II, 6-pull rod, 7-external Ha Ba, 8-external Ha Ba pin, 9-tension spring, 10-rotating plate pull pin, 11-swing seat, 12-spherical bearing pin, 13-linear optical axis, 14-axis support, 15-linear bearing, 16-spherical bearing, 17-bearing sleeve pin, 18-linear bearing sleeve, 19-cylinder shaft spacer sleeve, 20-swing cylinder shaft (rotating plate shaft), 21-flat key, 22-round flat key, 23-cylinder quick connector, 24-pull rod hole, 25-swing shaft slot, 26-bolt, 27-rail seat, 28-rail. DETAILED DESCRIPTION

[0020] The specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0021] A pneumatic spring combination switch, such as Figure 1 , 2 As shown, it includes a box base 1, a box 2, a box cover 3, a swing cylinder 4, a rotating plate 5, a pull rod 6, an external Ha Ba 7, an external Ha Ba pin 8, a tension spring 9, a linear optical axis 13, a linear bearing 15, a spherical bearing 16, a linear bearing sleeve 18, a swing cylinder shaft (rotating plate shaft) 20, etc.

[0022] The specific connection relationship is that a box body 2 is provided on the box body seat 1, and a swing cylinder 4 is installed in the box body 2. A hole-type swing cylinder is used, such as Figure 4 , 5 As shown, a swing cylinder shaft 20 is installed on the swing seat 11 of the swing cylinder 4, and the swing cylinder shaft 20 is assembled in the swing shaft slot 25 of the swing seat 11 through a round head flat key 22. The swing cylinder shaft 20 is locked by bolts, and the dynamic cylinder shaft 20 serves as a rotating plate shaft. After the cylinder shaft spacer sleeve 19 is installed on the swing cylinder shaft 20, the rotating plate 5 is assembled. The upper end of the swing cylinder shaft 20 is installed with the rotating plate 5 through a flat head key 21. The rotating plate 5 is integrally composed of a swing arm I 501 and a swing arm II 502 at an angle (preferably 90 degrees). The swing arm I 501 and the swing arm II 502 are 90 degrees. The swing arm I 501 is connected to one end of the tension spring 9 through the rotating plate pull pin 10, and the tension spring 9 is located above the rotating plate 5; the swing arm II 502 is installed with a joint bearing 16 through a joint bearing pin 12 (the joint bearing is as shown in FIG. Figure 6As shown in the figure, the joint bearing 16 is located below the rotating plate 5; the joint bearing 16 is fixedly connected to one end of the pull rod 6, and the other end of the pull rod 6 passes through the pull rod hole 24 of the box body 1 and is fixedly installed with the external horn 7, and the external horn 7 is connected to the rail seat 27 through the external horn pin 8. The other end of the tension spring 9 is connected to the linear bearing sleeve 18 through the bearing sleeve pin 17, and the linear bearing sleeve 18 is installed outside the linear bearing 15, and the linear bearing 15 is installed on the linear optical axis 13. The two ends of the linear optical axis 13 are respectively installed on the box body 2 through the shaft support 14; the box body cover 3 is installed on the box body 2.

[0023] During the specific implementation, one hole-type swivel cylinder (model QGK80×90°, interface M16×1.5), one linear optical axis (model SF20×300), two shaft supports (model SHF20), one linear bearing (model LM20), and one tie rod end joint bearing (model SI16-1T / K) can be purchased directly from outside.

[0024] When assembling, first fix the hole-type swing cylinder in the box with bolts, assemble the rotating plate on the rotating plate shaft (swing cylinder shaft), then install the pull rod and joint bearing on the rotating plate (swing arm II), connect the pull rod through the box and connect the external horn, then install the tension spring between the rotating plate (swing arm I) and the linear bearing sleeve, and finally install the cover plate. The air pipe of the cylinder passes through the box and connects to the air source, and the external horn is connected to the rail seat through the pin shaft.

[0025] After the cylinder drives the swing cylinder shaft to swing left and right, it drives the rotating plate shaft to rotate accordingly, driving the rotating plate to drive the turnout to move. Since the fixing center of the tension spring installed on the rotating plate and the rotation center of the rotating plate are designed with a certain eccentricity, when the rotating plate rotates, the distance between the hanging spring pin shaft on the rotating plate and the center of the tension spring changes according to the rotation position. The farthest point is selected as the middle point of the turnout movement stroke, and then the two symmetrical points before and after this point are selected as the starting point and end point of the turnout movement stroke. According to the trajectory that the distance between the middle point, the starting point, and the end point changes from long to short relative to the fixing center of the tension spring, the tension spring contraction function is used to achieve positioning and locking. Since the pull rod and the tension spring are respectively located below and above the rotating plate, the pull rod is automatically locked by the tension spring when it is extended or retracted. Specifically, Figure 7 As shown, the pull rod is in the extended state at this time, which can be determined as the starting point of the turnout movement. The linear bearing is located at one end of the linear optical axis, and the tension spring position (located in the upper part of the figure) is used to position and lock the rotating plate; Figure 8 As shown, the pull rod is in the retracted state (the rotating plate is Figure 7The state is obtained after swinging 90 degrees counterclockwise), which can be determined as the end point of the turnout movement. The linear bearing should be located at the other end of the linear optical axis (the linear bearing moves from one end to the other end of the linear optical axis), and the tension spring position (should be located at the lower part of the figure. Since the tension spring in the figure conflicts with the position of the pull rod after being located at the lower part, the tension spring is still located at the upper part of the figure in this figure, but in fact it should move from the upper part to the lower part of the figure with the linear bearing) to position and lock the rotating plate; Fig. 9 As shown, the pull rod is in the middle state at this time, that is, the middle state after the rotating plate rotates 45 degrees. At this time, the linear bearing should be located in the middle of the linear optical axis, and the position of the tension spring is between tension and retraction, and is in the longest tension state.

[0026] This spring switch is developed and designed according to standard requirements. It is a control facility for track types of 22~38kg / m and is specifically suitable for various narrow-track turnouts in coal mines; single turnouts, symmetrical turnouts, crossover turnouts, crossed crossover turnouts, and symmetrical combination turnouts.

[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although detailed description is given with reference to the embodiments of the present invention, those skilled in the art should understand that modifications or equivalent substitutions of the technical solutions of the present invention do not depart from the spirit and scope of the technical solutions of the present invention, and should all be covered by the protection scope of the claims of the present invention.

Claims

1. A pneumatic spring combined switchman, comprising a box seat (1), a box body (2) being arranged on the box seat (1), characterized in that: A swing cylinder (4) is installed in the box body (2), a swing cylinder shaft (20) is installed on the swing seat (11) of the swing cylinder (4), a rotating plate (5) is installed at the end of the swing cylinder shaft (20), a cylinder shaft spacer sleeve (19) is installed on the swing cylinder shaft (20), and then the rotating plate (5) is assembled, the rotating plate (5) is composed of an angled rotating arm I (501) and a rotating arm II (502), the rotating arm I (501) is connected to one end of a tension spring (9) through a swing plate pull pin (10), the tension spring (9) is located above the rotating plate (5), and the rotating arm II (502) is installed with a joint bearing through a joint bearing pin (12) (16), the joint bearing (16) is located below the rotating plate (5); the joint bearing (16) is fixedly connected to one end of the pull rod (6), and the other end of the pull rod (6) passes through the pull rod hole (24) of the box body (2) and is fixedly installed on the external Harp (7); the other end of the tension spring (9) is connected to the linear bearing sleeve (18) through the bearing sleeve pin (17), and the linear bearing sleeve (18) is installed outside the linear bearing (15), and the linear bearing (15) is installed on the linear optical axis (13), and the two ends of the linear optical axis (13) are respectively installed on the box body (2) through the shaft support (14); the box body cover (3) is installed on the box body (2).

2. The pneumatic spring combined switchman according to claim 1, characterized in that: The swing cylinder shaft (20) is assembled in the swing shaft slot (25) of the swing seat (11) via a round head flat key (22).

3. The pneumatic spring combined switchman according to claim 2, characterized in that: The upper end of the swing cylinder shaft (20) is assembled with a rotating plate (5) via a flat key (21).

4. The pneumatic spring combined switchman according to claim 1, characterized in that: The external ha-bell (7) is connected to the rail seat (27) via an external ha-bell pin shaft (8).

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