A monorail trolley device for assisting in overhauling a submersible sewage pump

Abstract

The utility model belongs to the technical field of overhauling auxiliary device, and relates to a monorail trolley device for assisting in overhauling a submersible sewage pump, which comprises a travelling frame, a travelling trolley, a travelling driving mechanism and a hoisting device, the travelling trolley is driven and installed on the travelling frame through the travelling driving mechanism, and the hoisting device is hung on the lower part of the travelling trolley. It is convenient to manufacture and install, occupies small space, does not need complex debugging process, can be quickly put into use, effectively solves the problems of complex structure and complicated process of the overhauling equipment in the prior art. It can quickly carry the submersible sewage pump to the overhauling area in the narrow pump room space, greatly shortens the carrying time and improves the overhauling efficiency; through the design of the travelling driving mechanism, the operator can more easily drive the travelling trolley to move, and ensures that the overhauling work can be normally carried out without being limited by the site.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of overhauling auxiliary device, and relates to a monorail trolley device for assisting in overhauling a submersible sewage pump. BACKGROUND

[0002] In the field of underground construction engineering, the drainage system is a key component to ensure the normal operation of facilities. Many underground places, such as subways, underground shopping malls, underground parking lots, etc., are faced with the demand for sewage treatment. In order to achieve efficient drainage, submersible sewage pumps have become widely used core equipment. With the acceleration of urbanization, the scale of underground construction is continuously expanding, and the stability and reliability of the drainage system are increasingly required. This promotes the development of submersible sewage pumps towards large flow, high lift and adaptation to complex water quality, and accordingly, their volume and weight are gradually increasing.

[0003] Taking a subway station as an example, in order to ensure the safety of train operation, it is necessary to timely remove the wastewater in the station and the interval to prevent the accumulation of water from affecting the track circuit and train operation. The subway station is usually provided with a station wastewater pump house and an interval wastewater pump house, equipped with multiple submersible sewage pumps. In the actual maintenance process, due to the long-term operation of submersible sewage pumps in a humid and impurity-rich harsh environment, the failure rate is relatively high, so frequent maintenance is required.

[0004] In the prior art, there are many problems in the maintenance of submersible sewage pumps. First, due to the large weight of submersible sewage pumps, some of which exceed 200Kg, during maintenance, the traditional manual handling method requires a large amount of manpower, and it is difficult to keep the equipment stable during operation, which can easily cause damage to the submersible sewage pump and increase maintenance costs.

[0005] In addition, in the narrow pump house space, large handling equipment cannot be effectively deployed, making the handling process extremely difficult and seriously reducing the maintenance efficiency. At the same time, the existing maintenance auxiliary equipment is mostly complex in structure, requiring the installation of rails, supporting power systems, etc., which not only makes installation and debugging cumbersome, but also occupies a large space, making it difficult to implement in the limited space of an underground pump house. SUMMARY

[0006] The utility model aims at overcoming the defects of the prior art, and provides a monorail trolley device for assisting in overhauling a submersible sewage pump, which is easy to operate, requires low operating space, reduces maintenance costs and is easy to implement.

[0007] The utility model solves the technical problem by adopting the following technical scheme:

[0008] The utility model relates to a monorail trolley device for assisting in overhauling a submerged sewage pump, characterized in that it comprises a travelling frame, a travelling trolley, a travelling drive mechanism and a hoisting device, the travelling trolley is installed on the travelling frame through the travelling drive mechanism, and the hoisting device is hung on the lower part of the travelling trolley.

[0009] Moreover, the travelling frame is welded from an I-beam and comprises a horizontal part and vertical parts symmetrically arranged at the lower part of the horizontal part, the two ends of the horizontal part are in communication with the vertical parts, and the grooves of the horizontal part and the vertical parts jointly form a drive mechanism mounting groove.

[0010] Moreover, the travelling trolley comprises a bottom groove, mounting plates, wheels and a lifting ring, the mounting plates are vertically installed on the front and rear groove walls of the bottom groove, the axles are arranged side by side on each mounting plate, the wheels are rotatably installed on the axles, the wheels move on the horizontal part of the travelling frame, and the lifting ring for hanging the hoisting device is fixed at the middle position of the bottom of the bottom groove.

[0011] Moreover, the travelling drive mechanism comprises a driving gear, a first driven gear, a second driven gear, a third driven gear, travelling gears and a hand crank, the first driven gear is rotatably installed at one end of the horizontal part of the travelling frame, the second driven gear and the third driven gear are rotatably installed at the other end of the horizontal part of the travelling frame, the upper end face of the second driven gear is flush with the upper end face of the first driven gear, the upper end face of the third driven gear is flush with the lower end face of the first driven gear, the driving gear is installed on the vertical part of the travelling frame below the second driven gear and the third driven gear and is driven by the hand crank, and the transmission chain is wound around the driving gear, the first driven gear, the second driven gear and the third driven gear.

[0012] The travelling gears are installed on the chain between the first driven gear and the third driven gear and are arranged up and down, and the travelling gears are rotatably installed on the travelling trolley.

[0013] And, it further comprises a walking brake mechanism, the walking brake mechanism comprises a brake rotating disc, a mounting beam, a mounting column, a brake handle, a mounting frame, a pulley, a brake wire, a lifting plate, a pull rod, a spring, a brake arm and a brake block, the mounting column and the mounting beam are respectively mounted on the vertical part of the travelling frame and extend forward, the brake handle is mounted on the mounting column, the lifting plate is arranged on the upper end surface of the mounting beam, the mounting frame is mounted between the mounting beam and the mounting column, the pulley is mounted on the mounting frame, one end of the brake wire is connected to the brake handle, the other end of the brake wire is connected to the lifting plate after winding around the pulley, the pull rod is connected to the lower part of the lifting plate, the pull rod is arranged on the lifting plate, the lower end of the pull rod is connected to the brake arm, the spring is arranged between the mounting beam and the brake arm, the brake block is mounted on the brake arm, the brake block is arranged on the two sides of the brake rotating disc, the brake rotating disc is arranged on the mounting shaft of the driving gear, and the brake rotating disc is fixedly connected to the driving gear.

[0014] And, it further comprises a limiting baffle, the limiting baffle is arranged on the two ends of the horizontal part of the travelling frame.

[0015] The utility model discloses the advantages and positive effects are:

[0016] 1, this single rail trolley device for assisting sewage pump maintenance, convenient to make and install, small space occupation, do not need complex debugging process, can be quickly put into use, effectively solve the problem of complex structure and complicated process of the maintenance equipment in the prior art. It can quickly transport the sewage pump to the maintenance area in the narrow pump room space, greatly shorten the transportation time and improve the maintenance efficiency. Through the design of the walking driving mechanism, the operator can easily drive the walking trolley to move, ensuring that the maintenance work can be normally carried out without being limited by the site.

[0017] 2, this single rail trolley device for assisting sewage pump maintenance, through the design of the walking brake mechanism, the walking trolley can be safely parked, the accidental sliding can be prevented, and the safety of the maintenance personnel and equipment can be ensured. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the utility model;

[0019] Figure 2 It is a structural schematic diagram of the travelling frame of the utility model;

[0020] Figure 3 It is a structural schematic diagram of the walking driving mechanism of the utility model;

[0021] Figure 4 It is a structural schematic diagram of the walking trolley of the utility model;

[0022] Figure 5 It is Figure 4Side view;

[0023] Figure 6 This is a schematic diagram of the walking braking mechanism of this utility model;

[0024] Figure 7 This is a perspective view of the walking braking mechanism of this utility model (the driving gear is omitted).

[0025] Explanation of reference numerals in the attached figures

[0026] 1-Tractor frame, 2-Traveling trolley, 3-Lifting device, 4-Traveling drive mechanism, 5-Limit stop, 6-Vertical part, 7-Horizontal part, 8-Steel plate, 9-First driven gear, 10-Transmission chain, 11-Traveling gear, 12-Second driven gear, 13-Third driven gear, 14-Hand crank, 15-Drive gear, 16-Bottom groove, 17-Wheel, 18-Mounting plate, 19-Lifting ring, 20-Mounting beam, 21-Lifting plate, 22-Mounting bracket, 23-Mounting column, 24-Brake disc, 25-Brake cable, 26-Pull rod, 27-Spring, 28-Brake arm, 29-Brake block, 30-Pulley, 31-Brake handle. Detailed Implementation

[0027] The embodiments of this utility model will be further described in detail below with reference to the accompanying drawings:

[0028] An innovative feature of a monorail trolley device for assisting in the maintenance of submersible sewage pumps is that it includes a trolley frame 1, a traveling trolley 2, a traveling drive mechanism 4, and a lifting device 3. The traveling trolley is mounted on the trolley frame by the traveling drive mechanism, and the lifting device is attached to the lower part of the traveling trolley.

[0029] In this embodiment, a manual chain hoist can be used as the lifting device, which can be upgraded to an electric hoist as needed. The manual chain hoist is mounted on a traveling trolley. The manual chain hoist is equipped with a chain guide and a hook. One end of the chain guide is fixed to the main body of the manual chain hoist, and the other end is connected to the hook. By operating the chain guide, the hook can be raised and lowered, facilitating the lifting of the submersible pump from its installation position in the pump house and placing it in the maintenance position.

[0030] The gantry frame is welded from I-beams, with I-beam specification #18, made of low-alloy high-strength structural steel to ensure sufficient strength and rigidity. The gantry frame is portal-shaped, 4300mm long and 2600mm high, dimensions designed based on the common external dimensions and installation space requirements of submersible sewage pumps. It includes a horizontal section 7 and vertical sections 6 symmetrically arranged at both ends of the lower part of the horizontal section. The ends of the horizontal section are connected to the vertical sections. The grooves in the horizontal and vertical sections together form the drive mechanism mounting groove. A 10mm thick steel plate 8 is installed at the bottom of the vertical section, with anchor bolts for connection to the structural foundation mounted on the steel plate.

[0031] The traveling trolley includes a base trough 16, mounting plates 18, wheels 17, and lifting rings 19. Mounting plates are vertically mounted on the front and rear side walls of the base trough. Alloy steel axles are welded side-by-side onto each mounting plate to ensure stable transmission of force from the wheels during operation. Wheels are mounted on the axles via bearings to reduce rotational friction. The wheels have a diameter of 140mm and a width of 40mm. The wheels move on the horizontal part of the trolley frame. A lifting ring for attaching a hoisting device is fixed at the center of the bottom of the base trough.

[0032] The walking drive mechanism includes a drive gear 15, a first driven gear 9, a second driven gear 12, a third driven gear 13, a walking gear 11, and a hand crank 14. The first driven gear is rotatably mounted at one end of the horizontal part of the gantry frame, and the second driven gear and the third driven gear are rotatably mounted at the other end of the horizontal part of the gantry frame. The upper end face of the second driven gear is flush with the upper end face of the first driven gear, and the upper end face of the third driven gear is flush with the lower end face of the first driven gear. The drive gear is mounted on the vertical part of the gantry frame below the second driven gear and the third driven gear. The drive gear is driven by the hand crank. A transmission chain 10 is wound around the drive gear, the first driven gear, the second driven gear, and the third driven gear.

[0033] A traveling gear is meshed on the chain between the first driven gear and the third driven gear, and the traveling gear is rotatably mounted on the mounting plate of the traveling trolley.

[0034] The hand crank is connected to the traveling gear on the trolley via a transmission mechanism consisting of a driving gear, driven gears, and a transmission chain. When manual drive is required, the operator rotates the hand crank, which drives the transmission chain to propel the trolley. This manual drive system is simple in structure and low in cost, making it highly practical in situations where power supply is inconvenient or where high operational flexibility is required.

[0035] It also includes a travel braking mechanism, which comprises a brake disc 24, a mounting beam 20, a mounting column 23, a brake handle 31, a mounting bracket 22, a pulley 30, a brake cable 25, a lifting plate 21, a pull rod 26, a spring 27, a brake arm 28, and a brake block 29. Mounting columns and mounting beams extend forward from the vertical part of the traveling frame, respectively. A brake handle is mounted on the mounting column. A lifting plate is provided on the upper surface of the mounting beam. An X-shaped mounting bracket is installed between the mounting beam and the mounting column. A pulley is installed on the mounting bracket. One end of the brake cable is connected to the brake handle, and the other end of the brake cable passes around the pulley and is connected to the lifting plate. Pull rods are connected to both ends of the lower part of the lifting plate. Each pull rod is mounted on the lifting plate, and the lower end of each pull rod is connected to the brake arm. A spring is installed between the crossbeam mounted on the pull rod and the brake arm. Brake blocks are installed on each brake arm. The brake blocks are located on both sides of the brake disc. The brake disc is mounted on the mounting shaft for mounting the drive gear. The brake disc is fixedly mounted to the drive gear.

[0036] When manual braking is required, the operator pulls the brake handle, which transmits force to the brake pads through the brake cable. This causes the brake pads to make close contact with the side of the brake disc, generating friction and thus achieving braking and ensuring the car stops safely.

[0037] It also includes a limiting baffle 5, which is provided at both ends of the horizontal part of the trolley frame. The limiting baffle is made of 10mm thick steel plate and welded to both sides of the horizontal part of the trolley frame at a distance of not less than 400mm from the end, to prevent the traveling trolley from slipping due to excessive travel.

[0038] Work process:

[0039] When the submersible sewage pump needs maintenance, first move the device to a suitable lifting position. Lower the hook of the hand-operated hoist to the lifting point of the pump and securely connect the hook to the pump's lifting point. Pull the hoist chain to raise the hook and slowly lift the pump away from its installation position. Then, use the drive mechanism to move the trolley to the maintenance area. Approach the maintenance area slowly to ensure the traveling brake mechanism can stop the trolley as needed. Once in the maintenance area, slowly pull the hoist chain to place the pump onto the maintenance platform for maintenance. After maintenance, repeat the reverse steps to return the pump to its installation position.

[0040] Although embodiments and drawings of the present invention have been disclosed for illustrative purposes, those skilled in the art will understand that various substitutions, variations and modifications are possible without departing from the spirit and scope of the present invention and the appended claims. Therefore, the scope of the present invention is not limited to the contents disclosed in the embodiments and drawings.

Claims

1. A monorail trolley device for assisting in the maintenance of submersible sewage pumps, characterized in that: It includes a crane frame, a traveling trolley, a traveling drive mechanism, and a lifting device. The traveling trolley is mounted on the crane frame via the traveling drive mechanism, and the lifting device is attached to the lower part of the traveling trolley. The aforementioned crane frame is welded from I-beams and includes a horizontal section and vertical sections symmetrically arranged at both ends of the lower part of the horizontal section. The two ends of the horizontal section are connected to the vertical sections, and the grooves of the horizontal and vertical sections together form a drive mechanism mounting groove. The aforementioned walking drive mechanism includes a drive gear, a first driven gear, a second driven gear, a third driven gear, a walking gear, and a hand crank. The first driven gear is rotatably mounted at one end of the horizontal part of the traveling frame, and the second driven gear and the third driven gear are rotatably mounted at the other end of the horizontal part of the traveling frame. The upper end face of the second driven gear is flush with the upper end face of the first driven gear, and the upper end face of the third driven gear is flush with the lower end face of the first driven gear. The drive gear is mounted on the vertical part of the traveling frame below the second and third driven gears. The drive gear is driven by the hand crank, and a transmission chain is wound around the drive gear, the first driven gear, the second driven gear, and the third driven gear. A traveling gear is meshed on the chain between the first driven gear and the third driven gear, and the traveling gear is rotatably mounted on the traveling trolley.

2. The monorail trolley device for assisting in the maintenance of submersible sewage pumps according to claim 1, characterized in that: The traveling trolley includes a base trough, mounting plates, wheels, and lifting rings. Mounting plates are vertically installed on the front and rear side walls of the base trough. Axles are arranged side by side on each mounting plate, and wheels are rotatably mounted on the axles. The wheels move on the horizontal part of the trolley frame. A lifting ring for attaching a lifting device is fixedly installed at the bottom center of the base trough.

3. The monorail trolley device for assisting in the maintenance of submersible sewage pumps according to claim 1, characterized in that: It also includes a travel braking mechanism, which comprises a brake disc, a mounting beam, a mounting column, a brake handle, a mounting bracket, pulleys, a brake cable, a lifting plate, tie rods, springs, brake arms, and brake blocks. Mounting columns and mounting beams extend forward from the vertical part of the traveling frame, respectively. A brake handle is mounted on the mounting column. A lifting plate is provided on the upper surface of the mounting beam. A mounting bracket is installed between the mounting beam and the mounting column, and pulleys are mounted on the mounting bracket. One end of the brake cable is connected to the brake handle, and the other end of the brake cable passes over the pulley and is connected to the lifting plate. Tie rods are connected to both ends of the lower part of the lifting plate, and each tie rod passes through the lifting plate. The lower end of each tie rod is connected to a brake arm. Springs pass through the mounting beam and brake arms on the tie rods. Brake blocks are mounted on each brake arm, and the brake blocks are located on both sides of the brake disc. The brake disc is mounted on a mounting shaft for mounting the drive gear, and the brake disc is fixedly connected to the drive gear.

4. A monorail trolley device for assisting in the maintenance of submersible sewage pumps according to claim 1, characterized in that: It also includes limiting baffles, with limiting baffles provided at both ends of the horizontal part of the crane frame.

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