Gas-liquid composite overspeed protection brake vehicle

Abstract

The utility model relates to the technical field of monorail locomotives, in particular to a gas-liquid composite overspeed protection brake vehicle. Comprising a frame, the frame comprises two symmetrical inclined plates, and the bottoms of the two inclined plates are fixedly connected through a connecting frame; two first rocker arms and two second rocker arms are rotatably mounted on the opposite outer sides of each inclined plate; the top end of each first rocker arm is connected with a common brake wheel; the bottom end of each first rocker arm is hinged to two ends of a common brake cylinder; the top end of each second rocker arm is connected with an emergency brake wheel. The bottom end of each second rocker arm is hinged to two ends of an emergency brake cylinder. The middle position of each second rocker arm is hinged with two ends of an elastic push rod; two speed measuring wheels are further installed on the two inclined plates and are in transmission connection with a centrifugal releaser, and the centrifugal releaser is connected with a release valve of the emergency brake cylinder. The walking wheel is rotatably mounted on the inclined plate and is connected with the driving assembly; when an emergency situation of overspeed occurs, the device can respond in time, automatic protection is achieved, external force or system control is not needed, and the device is convenient and reliable.

Description

Technical Field

[0001] The utility model relates to the technical field of monorail locomotives, in particular to a gas-liquid composite overspeed protection brake vehicle. Background Art

[0002] Monorail suspension cranes are widely used in manufacturing and light industry, and their main advantages are as follows: First, the monorail crane has a small cross-section and high utilization rate of tunnel section space; second, it can be used for continuous non-transfer transportation in horizontal and inclined tunnels, and its transport load is not limited by the bottom plate conditions, and can run on various vertical curves, horizontal curves and complex curves; third, it can complete auxiliary transportation from the mining area parking lot to the working face without transfer, and can be used for auxiliary transportation operations connecting the main transportation tunnels and mining area tunnels; fourth, it has automatic lifting, convenient loading and unloading, and low labor intensity; fifth, it has complete protection and reliable braking; sixth, the investment and maintenance costs are low.

[0003] When a monorail crane is running, it is necessary to control the overspeed situation. The existing monorail crane brake mainly obtains speed information through a speed sensor and controls the speed limit device to stop the vehicle urgently after comparison. However, this speed limit method has its lag and a high safety risk factor.

[0004] Therefore, in view of the above problems, the utility model is in urgent need of providing a gas-liquid composite overspeed protection brake vehicle. Utility Model Content

[0005] The utility model aims to provide a gas-liquid composite overspeed protection brake vehicle, which solves the problems of emergency brake lag and the like existing in the prior art through structural design.

[0006] A gas-liquid composite overspeed protection brake vehicle comprises a vehicle frame, wherein the vehicle frame comprises two inclined plates symmetrically mounted on both sides of an I-shaped track, and the bottoms of the two inclined plates are fixedly connected by a connecting frame;

[0007] Two first rocker arms and two second rocker arms are rotatably installed at intervals on the relative outer sides of each inclined plate, and each first rocker arm and each second rocker arm can respectively rotate in a first vertical rotation plane and a second vertical rotation plane which are perpendicular to the web of the I-shaped track; the top end of each first rocker arm is respectively connected to a common brake wheel symmetrically installed on both sides of the web of the I-shaped track, and the bottom end of each first rocker arm is respectively hinged to the two ends of the common brake cylinder; the top end of each second rocker arm is respectively connected to an emergency brake wheel symmetrically installed on both sides of the web of the I-shaped track, and the bottom end of each second rocker arm is respectively hinged to the two ends of the emergency brake cylinder; the middle position of each second rocker arm is also respectively hinged to the two ends of the elastic push rod;

[0008] Two speed measuring wheels are symmetrically mounted on the two inclined plates, each of which is connected to a centrifugal releaser, which is connected to a release valve of the emergency brake cylinder;

[0009] It further includes traveling wheels rotatably mounted on the inclined plates, and each traveling wheel is connected to the driving assembly.

[0010] Further, the emergency braking cylinder is a pneumatic cylinder, and the normal braking cylinder is a hydraulic cylinder.

[0011] Further, two first support plates are symmetrically arranged on the relative outer sides of the inclined plates. First support holes are penetrated through the first support plates. First connecting rods extend outward from the outer sides of the normal braking wheels. The first connecting rods extend out of the first support holes and are hinged to the first rocker arms.

[0012] Further, two second support plates are symmetrically arranged on the relative outer sides of the inclined plates. Second support holes are penetrated through the second support plates. Second connecting rods extend outward from the outer sides of the emergency braking wheels. The second connecting rods extend out of the second support holes and are hinged to the second rocker arms.

[0013] Further, first mounting seats and second mounting seats are arranged at intervals on the relative outer sides of the two inclined plates. The first mounting seats include two first connecting ears arranged vertically at intervals. Each first connecting ear is rotatably connected to each first rocker arm through a first connecting member. The second mounting seats include two second connecting ears arranged vertically at intervals. Each second connecting ear is rotatably connected to each second rocker arm through a second connecting member.

[0014] Further, the first connecting member includes a first through hole penetrating the first connecting ear, a second through hole penetrating the first rocker arm, and a first connecting pin inserted into the first through hole and the second through hole. The second connecting member includes a third through hole penetrating the second connecting ear, a fourth through hole penetrating the second rocker arm, and a second connecting pin inserted into the third through hole and the fourth through hole.

[0015] Further, a towing seat is rotatably connected to both ends of the two inclined plates through a third connecting member.

[0016] Further, the third connecting member includes a fifth through hole horizontally penetrating the two inclined plates, a sixth through hole penetrating the towing seat, and a third connecting pin horizontally inserted into the fifth through hole and the sixth through hole.

[0017] Further, it further includes a hydraulic station, and the hydraulic station is connected to the normal braking cylinder through an oil circuit.

[0018] Further, the elastic push rod includes two push rods respectively hinged to the second rocker arms. The two push rods are coaxially and slidably inserted through each other. Flange edges are provided at the ends of the two push rods hinged to the second rocker arms. A spring sleeved outside the two push rods is further included, and the two ends of the spring are respectively in contact connection with the flange edges.

[0019] Compared with the prior art, a pneumatic-hydraulic composite overspeed protection braking vehicle provided by the present utility model has the following improvements:

[0020] The gas-liquid compound overspeed protection braking vehicle provided by the utility model obtains the running speed of the locomotive by setting two speed measuring wheels. When braking is required under the normal running state of the locomotive, the hydraulic station drives the ordinary brake cylinder to push the bottom ends of the first rocker arms, so that each ordinary brake wheel is pressed against the web of the I-shaped track to complete braking; when the running speed of the locomotive reaches the set threshold, the centrifugal release connected to each speed measuring wheel drives the release valve of the emergency brake cylinder to open, so that the emergency brake cylinder is depressurized, the tension on the second rocker arms is released, and the elastic push rod pushes the bottom ends of the second rocker arms, so that each emergency brake wheel is pressed against the web of the I-shaped track to complete emergency braking; through the above operations, the locomotive can stop and start multiple times as needed under the normal running state, and can respond in time when an emergency of overspeed occurs, realizing automatic protection without relying on external force or system control, which is convenient and reliable; since the emergency brake cylinder is a pneumatic cylinder, the response speed is fast and braking can be completed in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0022] Figure 1 Schematic diagram (front view) of the gas-liquid compound overspeed protection braking vehicle described in the present utility model;

[0023] Figure 2 Schematic diagram (three-dimensional view) of the gas-liquid compound overspeed protection braking vehicle described in the present utility model;

[0024] Figure 3 View showing from obliquely below Figure 2 the gas-liquid compound overspeed protection braking vehicle in.

[0025] Description of the reference numerals:

[0026] 1, inclined plate; 2, connecting frame; 3, I-shaped track; 4, walking wheel; 5, emergency brake wheel; 6, second connecting rod; 7, second rocker arm; 8, emergency brake cylinder; 9, ordinary brake wheel; 10, first connecting rod; 11, first rocker arm; 12, ordinary brake cylinder; 13, second mounting seat; 14, first mounting seat; 15, second support plate; 16, first support plate; 17, towing seat; 18, elastic push rod; 181, push rod; 1811, flange edge; 182, spring; 19, speed measuring wheel; 20, centrifugal release; 21, hydraulic station. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are 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.

[0028] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0029] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] like Figure 1 , Figure 2 , Figure 3 As shown, the utility model provides a gas-liquid composite overspeed protection brake vehicle, including a vehicle frame, the vehicle frame includes two inclined plates 1 symmetrically installed on both sides of the I-shaped track 3, and the bottoms of the two inclined plates 1 are fixedly connected by a connecting frame 2;

[0031] Two first rocker arms 11 and two second rocker arms 7 are rotatably installed at intervals on the relative outer sides of each inclined plate 1. Each first rocker arm 11 and each second rocker arm 7 can rotate in a first vertical rotation plane and a second vertical rotation plane respectively arranged perpendicular to the web of the I-shaped track 3; the top of each first rocker arm 11 is respectively connected to a common brake wheel 9 symmetrically installed on both sides of the web of the I-shaped track 3, and the bottom end of each first rocker arm 11 is respectively hinged to the two ends of a common brake cylinder 12; the top of each second rocker arm 7 is respectively connected to an emergency brake wheel 5 symmetrically installed on both sides of the web of the I-shaped track 3, and the bottom end of each second rocker arm 7 is respectively hinged to the two ends of an emergency brake cylinder 8; the middle position of each second rocker arm 7 is also respectively hinged to the two ends of an elastic push rod 18;

[0032] Two speed measuring wheels 19 are symmetrically mounted on the two inclined plates 1, each speed measuring wheel 19 is drivingly connected to a centrifugal releaser 20, and the centrifugal releaser 20 is connected to a release valve of the emergency brake cylinder 8;

[0033] It also includes two running wheels 4 rotatably mounted on the inclined plate 1, and each running wheel 4 is connected to a driving assembly.

[0034] The gas-liquid composite overspeed protection brake vehicle provided by the utility model obtains the running speed of the locomotive by setting two speed measuring wheels 19. When the locomotive needs to brake under normal operating state, the hydraulic station 21 drives the common brake cylinder 12 to push the bottom end of each first rocker arm 11, so that each common brake wheel 9 is close to the web of the I-shaped track 3 to complete the braking; when the running speed of the locomotive reaches the set threshold, the centrifugal releaser 20 connected to each speed measuring wheel 19 opens the release valve of the emergency brake cylinder 8, so that the emergency brake cylinder 8 releases pressure, releases the tension on each second rocker arm 7, and the elastic push rod 18 pushes the bottom end of each second rocker arm 7, so that each emergency brake wheel 8 is close to the web of the I-shaped track 3 to complete the emergency braking; through the above operation, the utility model enables the locomotive to stop and start multiple times as needed under normal operating state, and responds in time when an emergency situation of overspeed occurs, realizing automatic protection without the need for external force or system control, which is convenient and reliable; because the emergency brake cylinder 8 is a cylinder, the response speed is fast and the braking can be completed in time.

[0035] In this embodiment, the emergency brake cylinder 8 is a pneumatic cylinder, and the common brake cylinder 12 is a hydraulic cylinder.

[0036] In the utility model, the emergency brake cylinder 8 is a pneumatic cylinder with a fast response speed, which can complete the pressure relief more quickly, so that the elastic push rod 18 pushes the bottom end of each second rocker arm 7, making the emergency braking more timely and avoiding greater losses.

[0037] like Figure 1 , Figure 2 , Figure 3 As shown, two first support plates 16 are symmetrically provided on the outer sides of each inclined plate 1. A first support hole is penetrated through each first support plate 16. A first connecting rod 10 is extended outward from the outer side of each ordinary brake wheel 9. The first connecting rod 10 extends out of the first support hole and is hinged to the first rocker arm 11.

[0038] like Figure 1 , Figure 2 , Figure 3 As shown, two second support plates 15 are symmetrically provided on the outer side of each inclined plate 1, and a second support hole is penetrated through each second support plate 15. A second connecting rod 6 is extended outward from the outer side of each emergency brake wheel 5, and the second connecting rod 6 extends out of the second support hole and is hinged to the second rocker arm 7.

[0039] like Figure 1 , Figure 2 , Figure 3As shown, on the relative outer sides of the two inclined plates 1, a first mounting seat 14 and a second mounting seat 13 are arranged at intervals; among them, the first mounting seat 14 includes two first connecting ears arranged vertically at intervals, and each first connecting ear and each first rocker arm 11 are rotatably connected through a first connecting piece; the second mounting seat 13 includes two second connecting ears arranged vertically at intervals, and each second connecting ear and each second rocker arm 7 are rotatably connected through a second connecting piece.

[0040] As Figure 1 , Figure 2 , Figure 3 shown, the first connecting piece includes a first through hole penetrating the first connecting ear, a second through hole penetrating the first rocker arm 11, and a first connecting pin inserted into the first through hole and the second through hole; the second connecting piece includes a third through hole penetrating the second connecting ear, a fourth through hole penetrating the second rocker arm 7, and a second connecting pin inserted into the third through hole and the fourth through hole.

[0041] As Figure 1 , Figure 2 , Figure 3 shown, the two ends of the two inclined plates 1 are also rotatably connected with a towing seat 17 through a third connecting piece.

[0042] In this embodiment, the third connecting piece includes a fifth through hole horizontally penetrating the two inclined plates 1, a sixth through hole penetrating the towing seat 17, and a third connecting pin horizontally inserted into the fifth through hole and the sixth through hole.

[0043] As Figure 1 , Figure 2 , Figure 3 shown, it further includes a hydraulic station 21, and the hydraulic station 21 is connected with a common brake cylinder 12 through an oil circuit.

[0044] As Figure 3 shown, the elastic push rod 18 includes two push rods 181 respectively hinged to each second rocker arm 7, and the two push rods 181 are coaxially slidably inserted; at the ends of the two push rods 181 hinged to the second rocker arm 7, there are also flange edges 1811; it further includes a spring 182 sleeved outside the two push rods 181, and the two ends of the spring 182 are respectively in contact connection with the flange edges 1811.

[0045] The working process of the utility model includes the following steps:

[0046] 1) When the monorail crane needs to brake during normal operation, the hydraulic station 21 drives the push rod of the common brake cylinder 12 to push outwards, pushing the bottom ends of the first rocker arms 11 to move outwards. Since the middle positions of the first rocker arms 11 are hinged to the first mounting seats 14, the top ends of the first rocker arms 11 move inwards, driving the common brake wheels 9 towards the web of the I-shaped track 3 until the side surfaces of the common brake wheels 9 are closely attached to the web of the I-shaped track 3, completing the braking of the locomotive;

[0047] 2) Each speed measuring wheel 19 is in close contact with the I-shaped track 3, obtains the locomotive speed and is drivingly connected with a centrifugal release 20. When the monorail crane overspeed, the centrifugal release 20 opens the release valve of the emergency brake cylinder 8, and the emergency brake cylinder 8 quickly responds to release pressure, losing the tension force on the second rocker arm 7. The spring 182 in the elastic push rod 18 pushes the two flange edges 1811 outwards, and each push rod 181 pushes each second rocker arm 7 outwards. Since the middle position of each second rocker arm 7 is hinged to the second mounting seat 13, the top of each second rocker arm 7 moves inwards, driving each emergency brake wheel 5 towards the web of the I-shaped track 3 until it is in close contact with the web of the I-shaped track 3, completing the emergency braking of the locomotive.

[0048] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than limiting it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A gas-liquid compound super-speed protection braking vehicle, characterized in that: It includes a frame, and the frame includes two inclined plates (1) symmetrically installed on both sides of an I-shaped track (3), and the bottoms of the two inclined plates (1) are fixedly connected by a connecting frame (2); On the relative outer sides of each inclined plate (1), two first rocker arms (11) and two second rocker arms (7) are rotatably installed at intervals. Each first rocker arm (11) and each second rocker arm (7) can respectively rotate within a first vertical rotation plane and a second vertical rotation plane perpendicular to the web of the I-shaped track (3); the tops of each first rocker arm (11) are respectively connected with ordinary brake wheels (9) symmetrically installed on both sides of the web of the I-shaped track (3), and the bottoms of each first rocker arm (11) are respectively hinged to both ends of an ordinary brake cylinder (12); the tops of each second rocker arm (7) are respectively connected with emergency brake wheels (5) symmetrically installed on both sides of the web of the I-shaped track (3), and the bottoms of each second rocker arm (7) are respectively hinged to both ends of an emergency brake cylinder (8); the middle positions of each second rocker arm (7) are also respectively hinged to both ends of an elastic push rod (18); Two speed measuring wheels (19) are also symmetrically installed on the two inclined plates (1), each speed measuring wheel (19) is drivingly connected with a centrifugal release device (20), and the centrifugal release device (20) is connected with the release valve of the emergency brake cylinder (8); It also includes two traveling wheels (4) rotatably installed on the inclined plates (1), and each traveling wheel (4) is connected with a driving assembly.

2. The gas-liquid compound overspeed protection braking vehicle according to claim 1, characterized in that: The emergency brake cylinder (8) is a pneumatic cylinder, and the ordinary brake cylinder (12) is a hydraulic cylinder.

3. The gas-liquid composite super-speed protection braking vehicle according to claim 2, characterized in that: On the relative outer sides of each inclined plate (1), two first support plates (16) are also symmetrically provided. Each first support plate (16) is provided with a first support hole through it. The outer side of each ordinary brake wheel (9) extends outward with a first connecting rod (10), and the first connecting rod (10) extends out of the first support hole and is hinged to the first rocker arm (11).

4. The gas-liquid composite super-speed protection braking vehicle according to claim 3, wherein: On the relative outer sides of each inclined plate (1), two second support plates (15) are also symmetrically provided. Each second support plate (15) is provided with a second support hole through it. The outer side of each emergency brake wheel (5) extends outward with a second connecting rod (6), and the second connecting rod (6) extends out of the second support hole and is hinged to the second rocker arm (7).

5. The gas-liquid compound overspeed protection braking vehicle according to claim 4, characterized in that: On the relative outer sides of the two inclined plates (1), a first mounting seat (14) and a second mounting seat (13) are provided at intervals; wherein, the first mounting seat (14) includes two first connecting ears arranged vertically at intervals, and each first connecting ear and each first rocker arm (11) are rotatably connected by a first connecting member; the second mounting seat (13) includes two second connecting ears arranged vertically at intervals, and each second connecting ear and each second rocker arm (7) are rotatably connected by a second connecting member.

6. The gas-liquid compound overspeed protection braking vehicle according to claim 5, wherein: The first connecting member includes a first through hole penetrating the first connecting ear, a second through hole penetrating the first rocker arm (11), and a first connecting pin installed in the first through hole and the second through hole; the second connecting member includes a third through hole penetrating the second connecting ear, a fourth through hole penetrating the second rocker arm (7), and a second connecting pin installed in the third through hole and the fourth through hole.

7. The gas-liquid composite super-speed protection braking vehicle according to claim 6, characterized in that: The two ends of the two inclined plates (1) are also rotatably connected with a towing seat (17) through a third connecting member.

8. The gas-liquid composite super-speed protection braking vehicle according to claim 7, characterized in that: The third connecting member includes a fifth through hole horizontally penetrating through the two inclined plates (1), a sixth through hole penetrating through the towing seat (17), and a third connecting pin horizontally installed in the fifth through hole and the sixth through hole.

9. The gas-liquid composite super-speed protection braking vehicle according to claim 8, wherein: It further includes a hydraulic station (21), and the hydraulic station (21) is connected to the normal brake cylinder (12) through an oil circuit.

10. The gas-liquid composite overspeed protection braking vehicle according to claim 9, characterized in that: The elastic push rod (18) includes two push rods (181) respectively hinged to the second rocker arms (7), and the two push rods (181) are coaxially and slidably installed; a flange edge (1811) is further provided at one end of the two push rods (181) hinged to the second rocker arms (7); it further includes a spring (182) sleeved outside the two push rods (181), and the two ends of the spring (182) are respectively in contact connection with the flange edge (1811).

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