Movable trailer pump and secondary lining trolley thereof

Abstract

The utility model relates to a movable trailer pump and a secondary lining trolley thereof. The movable trailer pump comprises a rack, walking wheels, a connecting assembly, a conveying assembly and a hydraulic assembly. The rack is used for supporting and connecting components on the movable trailer pump; the walking wheels are arranged below the rack and are monorail wheels; the connecting assembly is arranged above the rack; the connecting assembly comprises a conical joint and a cylindrical bayonet, and the conical joint is telescopically arranged below the cylindrical bayonet; the cylindrical bayonet is connected with the moving device; the conveying assembly is arranged above the rack and used for conveying concrete; and the hydraulic assembly is arranged above the rack and used for providing power for the movable trailer pump.

Description

Technical Field

[0001] The utility model belongs to the technical field of tunnel engineering, in particular to a mobile drag pump and a secondary lining trolley thereof. Background Art

[0002] With the booming development of tunnel engineering in China, TBMs (Tunnel Boring Machines) and shield machines are increasingly used in tunnel construction. The secondary lining trolleys used with TBMs are used to simultaneously line the inner walls of the tunnel being excavated. Trailer pumps, in conjunction with the secondary lining trolleys, transport and pour concrete during the simultaneous lining process. Existing technologies often use connecting rods or hooks to connect trailer pumps to various mobile devices. These connection methods suffer from low connection strength and are difficult to disassemble and install.

[0003] Therefore, how to provide a drag pump that can connect the drag pump to the mobile device with high strength and can be quickly disassembled and installed is a technical problem that needs to be solved urgently in this field. Utility Model Content

[0004] In order to solve at least one of the above technical problems, the present invention provides a mobile drag pump, comprising: a frame, a traveling wheel, a connecting assembly, a conveying assembly and a hydraulic assembly;

[0005] Frame, used to support and connect various components on the mobile drag pump;

[0006] The traveling wheel is set under the frame and is a single track wheel;

[0007] The connection assembly is arranged above the rack;

[0008] The connecting assembly includes: a conical joint and a cylindrical bayonet, wherein the conical joint is telescopically arranged below the cylindrical bayonet; the cylindrical bayonet is connected to the moving device;

[0009] A conveying assembly is arranged above the frame and is used for conveying concrete;

[0010] The hydraulic assembly is arranged above the frame and is used to provide power for the mobile drag pump.

[0011] Furthermore, a first telescopic member is provided below the conical joint; and a dust cover is provided above the cylindrical bayonet.

[0012] Furthermore, the conveying assembly includes: a feed hopper, a first conveying section vertically connected to the feed hopper, a second conveying section horizontally connected to the first conveying section, and a discharge port arranged at the end of the second conveying section.

[0013] Furthermore, the feed hopper is rotatably connected to the first end of the first conveying section, and the second end of the first conveying section is rotatably connected to the first end of the second conveying section.

[0014] Furthermore, a feed screen is provided above the feed hopper, and a plurality of sieve holes are provided on the feed screen; and an inclined guide plate is provided on one side of the feed hopper.

[0015] Furthermore, the delivery assembly further comprises: a delivery valve and a delivery flow sensor;

[0016] The flow sensor includes: a first flow sensor and a second flow sensor. The first flow sensor is arranged at the front end of the delivery valve, and the second flow sensor is arranged at the rear end of the delivery valve.

[0017] Furthermore, the delivery component includes: a delivery pump and an S valve; the delivery pump uses a horizontal double cylinder to pump concrete, and the S valve is used to switch the horizontal double cylinder.

[0018] Furthermore, the mobile drag pump also includes telescopic legs arranged below the frame.

[0019] Furthermore, any one of the above-mentioned mobile drag pumps further includes: a control device; the control device includes: a wireless remote control, a display screen, a memory and a control cabinet.

[0020] A secondary lining trolley comprises any one of the above-mentioned mobile drag pumps.

[0021] In this embodiment, a mobile drag pump is provided. The frame of the mobile drag pump is used to support and connect various components. Travel wheels are arranged under the frame. The travel wheels are single-track wheels and can roll freely on the single track. Compared with the double-track wheels in the prior art, the use space of the mobile drag pump can be greatly saved, and the number of tracks used can be saved, thereby avoiding blockage of other trolleys and transportation equipment during transportation; the cylindrical bayonet is connected to the mobile device. In the first state, the conical joint extends and is stuck in the cylindrical bayonet, and the mobile device pulls the mobile drag pump to move on the track; the mobile drag pump and the mobile device are connected by the conical joint and the cylindrical bayonet. Compared with the traditional hook or connecting rod connection, it can transmit greater power and the connection is not easy to deform. More importantly, the tapered joint and cylindrical bayonet are rigidly locked, working in conjunction with the monorail wheel to prevent the mobile pump from tilting left or right. In the second state, the tapered joint retracts and disengages the cylindrical bayonet, allowing the mobile pump's hydraulic assembly to power the conveying assembly, which then delivers concrete. This prevents vibrations from the mobile unit itself and deformation of its components and mechanisms, particularly at the joints, caused by continuous impact, significantly extending the pump's service life. Furthermore, this prevents the conveying unit from being subjected to continuous impact, which could cause changes in the concrete delivery direction, improving concrete placement accuracy. The tapered joint and cylindrical bayonet ensure a high-strength connection between the pump and the mobile unit, allowing for quick removal and installation of the pump and mobile unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] To more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be derived based on the structures shown in these drawings without inventive effort. In the drawings, the same parts are marked with the same reference numerals. The drawings are not drawn to scale.

[0023] Figure 1 This is a front view of an embodiment of a mobile drag pump of the present utility model;

[0024] Figure 2 This is a schematic diagram of an embodiment of a mobile drag pump of the present invention;

[0025] Figure 3 This is a schematic diagram of the connection between a tapered joint and a cylindrical bayonet of a mobile drag pump of the present invention;

[0026] Figure 4 This is a schematic diagram of the disengagement of the conical joint and the cylindrical bayonet of a mobile drag pump according to the present invention. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] It should be noted that when an element is referred to as being "fixed on" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element.

[0029] It should also be noted that if the embodiments of the present invention involve directional indications, such as up, down, left, right, front, back, etc., then the directional indications are only used to explain the relative positional relationship and movement of the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly. In addition, if the embodiments of the present invention involve descriptions such as "first, second", "S1, S2", "step one, step two", etc., such descriptions are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features or indicating the execution order of the method, etc. Those skilled in the art can understand that anything that does not violate the key points of the utility model under the technical concept of the utility model should be included in the scope of protection of the utility model.

[0030] The utility model provides a mobile drag pump, Figures 1 to 4 , including: a frame 1, a traveling wheel 2, a connecting component 3, a conveying component 4 and a hydraulic component 5;

[0031] Frame 1, used to support and connect various components on the mobile drag pump;

[0032] The traveling wheel 2 is arranged below the frame 1 and is a single track wheel;

[0033] The connecting assembly 3 is arranged above the frame 1; the connecting assembly 3 includes: a conical joint 31 and a cylindrical bayonet 32, the conical joint 31 is telescopically arranged below the cylindrical bayonet 32; the cylindrical bayonet 32 ​​is connected to the moving device;

[0034] The conveying assembly 4 is arranged above the frame 1 and is used to convey concrete;

[0035] The hydraulic assembly 5 is arranged above the frame 1 and is used to provide power for the mobile drag pump.

[0036] In this embodiment, a mobile drag pump is provided. The frame 1 of the mobile drag pump is used to support and connect various components. A running wheel 2 is arranged under the frame 1. The running wheel 2 is a single-track wheel that can roll freely on a single track. Compared with the double-track wheels in the prior art, it can greatly save the use space of the mobile drag pump and the number of tracks used, avoiding blockage of other trolleys and transportation equipment during transportation; the cylindrical bayonet 32 ​​is connected to the mobile device. In the first state, the conical joint 31 extends and is stuck in the cylindrical bayonet 32, and the mobile device pulls the mobile drag pump to move on the track; the mobile drag pump and the mobile device are connected by the conical joint 31 and the cylindrical bayonet 32. Compared with traditional hook or connecting rod connections, it can transmit greater power and the connection is not easily deformed. More importantly, the rigid locking of the conical joint 31 and the cylindrical bayonet 32, combined with the monorail wheel, prevents the mobile pump from tilting left or right. In the second state, the conical joint 31 retracts and disengages the cylindrical bayonet 32, allowing the mobile pump's hydraulic assembly 5 to power the conveying assembly 4. This conveying of concrete via the conveying assembly 4 protects the mobile pump from vibrations inherent in the mobile unit, preventing deformation of its components and devices, particularly at the joints, caused by continuous impact. This significantly increases the pump's service life. Furthermore, it prevents the conveying unit from being subjected to continuous impact, which could cause changes in the concrete delivery direction, thereby improving the accuracy of concrete placement. The conical joint 31 and the cylindrical bayonet 32 ​​ensure a high-strength connection between the pump and the mobile unit, enabling quick removal and installation of the pump and the mobile unit.

[0037] Preferably, a first telescopic member is provided below the conical joint 31 .

[0038] In this embodiment, a first telescopic member is provided below the conical joint 31. When the first telescopic member is extended or retracted, the conical joint 31 is rigidly locked or disengaged from the cylindrical bayonet 32, thereby more efficiently achieving the rigid connection or disengagement between the mobile drag pump and the mobile device. Optionally, the first telescopic member can be a telescopic hydraulic cylinder connected to the hydraulic assembly 5, or a structure with a telescopic function such as a cylinder, a worm gear, and a gear rack. More preferably, a dust cover is provided above the cylindrical bayonet 32 ​​to prevent dust, gravel, and other debris from entering the cylindrical bayonet 32 ​​during tunnel construction, thereby preventing the conical joint 31 and the cylindrical bayonet 32 ​​from being locked, thereby reducing the failure rate during the use of the mobile drag pump and improving the efficiency of tunnel construction.

[0039] Preferably, reference Figure 1 The conveying assembly 4 includes: a feed hopper 41, a first conveying section 42 vertically connected to the feed hopper 41, a second conveying section 43 horizontally connected to the first conveying section 42, and a discharge port 44 arranged at the end of the second conveying section 43.

[0040] In this embodiment, concrete is delivered to the hopper 41 by manual conveying or by a concrete conveying device. The hopper 41 is used to buffer part of the concrete. Then the hydraulic assembly 5 provides power to pump the concrete into the first conveying section 42 to increase the height of the concrete. The concrete is then pumped into the horizontal second conveying section 43 and output to the designated location through the discharge port 44. The discharge port 44 can act directly on the concrete pouring position or be connected to other pouring equipment to increase the applicability of the mobile drag pump. The entire conveying assembly 4 has a simple structure, is easy to implement, and has high reliability. More preferably, reference Figure 1 The feed hopper 41 is rotatably connected to the first end of the first conveying section 42, and the second end of the first conveying section 42 and the first end of the second conveying section 43 are rotatably connected. The first conveying section 42 can rotate relative to the feed hopper 41 to adjust the conveying height of the concrete in the first conveying section 42. The second conveying section 43 can rotate relative to the first conveying section 42 to adjust the conveying direction of the second conveying section, thereby improving the conveying assembly 4's ability to adjust the height and direction of concrete conveying and increasing the applicability of the transfer pump. It is worth noting that the lengths of the first conveying section 42 and the second conveying section 43 can be arbitrarily set by those skilled in the art to meet the actual needs of concrete pumping. More preferably, a feed screen 41a is provided above the feed hopper 41, and the feed screen 41a is provided with a plurality of sieve holes to remove large particles of impurities in the concrete and improve the quality of the pumped concrete.

[0041] More preferably, refer to Figure 2 A feed screen 41a is provided above the feed hopper 41, and a plurality of sieve holes are provided on the feed screen 41a.

[0042] In this embodiment, a feed screen 41a with mesh holes is installed above the feed hopper 41 to screen the concrete entering the hopper 41 and separate unqualified particles (such as oversized particles and impurities). This screening process prevents large particles or impurities from abrading and clogging the conveying assembly 4, thereby improving the overall concrete quality and the stability of the mobile pump. More preferably, a vibrator is installed on the feed screen 41a to vibrate the feed screen 41a. The vibrator is installed on the feed screen 41a to generate continuous vibration, which can break the cohesive force between the concrete materials, prevent the concrete materials from agglomerating or clogging in the feed hopper 41, and ensure that the concrete materials can flow smoothly within the conveying assembly 4.

[0043] More preferably, refer to Figure 1 An inclined guide plate 41b is provided on one side of the hopper 41.

[0044] In this embodiment, an inclined guide plate 41b is added to one side of the feed hopper 41 to guide the flow of concrete, so that the concrete or other materials entering from the feed hopper 41 flow obliquely downward along the guide plate 41b into the hopper 41, reducing the scattering and splashing of materials during the feeding process; at the same time, it prevents the accumulation of concrete near the feed port, reducing the risk of blockage caused by material accumulation, which is particularly important for concrete transportation that requires continuous and stable feeding. More importantly, the guide plate 41b can mitigate the impact of subsequent concrete processing components and reduce the risk of damage to the mobile drag pump due to material impact; finally, for materials that are prone to dust generation (such as dry powder concrete or concrete additive powder), the guide plate 41b can reduce the dust generation during the feeding process, improve the production environment, and protect the health of operators. It is worth noting that the angle between the guide plate 41b and the feed hopper 41 can be arbitrarily set by those skilled in the art. For example, in this embodiment, the included angle between the guide plate 41b and the feed hopper 41 is 45° to 80°, which is used to strengthen the guide plate 41b's function of guiding the concrete and mitigating impact. More preferably, guide side plates are provided on the left and right sides of the guide plate 41b; the guide side plates on the left and right sides can further reduce the scattering and splashing of materials during the feeding process. Optionally, the guide side plates are trapezoidal plates that can be detachably mounted to the feed hopper 41. On the one hand, this improves the interchangeability of the guide side plates, allowing them to be replaced promptly in the event of damage; on the other hand, the trapezoidal plates are less likely to deform, thereby increasing the service life of the entire mobile drag pump equipment.

[0045] Preferably, the delivery component 4 further includes: a delivery valve and a delivery flow sensor.

[0046] In this embodiment, the delivery flow sensor is used to detect the delivery speed of concrete in the delivery component 4, and the delivery valve is used to adjust the delivery speed of concrete in the delivery component 4. More preferably, the flow sensor is arranged at the front end of the delivery valve. The flow sensor is arranged at the front end of the delivery valve, so that the concrete pumping speed can be detected first and then adjusted, thereby improving the accuracy of the concrete pumping speed detection. More preferably, the flow sensor includes: a first flow sensor and a second flow sensor, the first flow sensor is arranged at the front end of the delivery valve, and the second flow sensor is arranged at the rear end of the delivery valve. The first flow sensor is used to detect the delivery speed at the front end of the delivery valve, and the second flow sensor is used to detect the delivery speed at the rear end of the delivery valve. After adjusting the delivery valve to adjust the concrete pumping speed, the changes in the detection values ​​of the first flow sensor and the second flow sensor are compared to detect whether the delivery valve is in normal working condition. After the delivery component 4 is operating stably, the values ​​of the first flow sensor and the second flow sensor are compared to see whether they are the same or within a preset error range to verify whether the first flow sensor and the second flow sensor are in normal working condition. For example, the delivery valve is adjusted to adjust the concrete pumping speed from 30m / s to 10m / s. 3 / h to 40m3 / h, the preset error range of the detection values ​​of the first flow sensor and the second flow sensor is ±1m 3 / h; at this time, the first flow sensor is 30m 3 / h, the second flow sensor is 40m 3 / h, the change between the two is 10m 3 / h, indicating that the delivery valve is working normally. If the first flow sensor and the second flow sensor are both 30m 3 / h or 29~31m 3 / h range, indicating that the delivery valve is working abnormally and needs to be repaired; after the delivery component 4 works stably, the concrete delivery speed is 40m 3 / h, the values ​​detected by the first flow sensor and the second flow sensor are both between 39 and 41m 3 / h, and the detection value deviation of the first flow sensor and the second flow sensor is less than ±1m 3 / h, i.e. less than 2m 3 / h, it means that the first flow sensor and the second flow sensor are working normally. Otherwise, it means that at least one of the first flow sensor and the second flow sensor is working abnormally and needs further testing, maintenance or replacement.

[0047] Preferably, the delivery assembly 4 includes: a delivery pump and an S valve; the delivery pump uses a horizontal double cylinder to pump concrete, and the S valve is used to switch the horizontal double cylinder.

[0048] In this embodiment, the delivery assembly 4 includes a delivery pump and an S valve. The concrete delivery pump adopts a horizontal double cylinder and an S valve switching mode. In this utility model, the high pressure of the delivery pump is used for pumping, and the maximum delivery volume is 45m 3 / h and above. The delivery pressure is as high as 13MPa, which can greatly improve the concrete delivery efficiency.

[0049] Preferably, mobile drag pump, reference Figure 1 and Figure 2 , further comprising: a telescopic leg 6 arranged below the frame 1.

[0050] Preferably, the mobile drag pump further includes: a cooling component arranged on one side of the hydraulic component 5 .

[0051] In this embodiment, a cooling assembly is added to one side of the hydraulic assembly 5 to dissipate heat from the hydraulic assembly 5 and ensure the stable performance of the hydraulic assembly 5. More preferably, the cooling assembly is a water-cooled heat sink to further improve the heat dissipation effect. Specifically, the water-cooled heat sink includes: a cooling pump, a radiator, a coolant tank, and a circulation pipe. The cooling pump is used to pressurize the coolant; the radiator is used to exchange heat between the coolant and the hydraulic assembly 5; the coolant tank is used to store the coolant and is the starting point and end point of the coolant circulation flow; the circulation pipe connects the cooling pump, radiator, coolant tank, and circulation pipe for the circulation of the coolant. More preferably, the water-cooled heat sink also includes: a water-cooled temperature sensor, which is used to monitor the temperature of the hydraulic assembly 5. When the temperature exceeds the set value, a signal is sent to the control device described later, thereby adjusting the speed of the cooling pump to ensure that the temperature of the hydraulic assembly 5 is effectively controlled. More preferably, the cooling assembly is an air-cooled heat sink, which removes heat from the hydraulic assembly 5 through air flow, having the advantages of simple structure and easy implementation. Specifically, the air-cooled heat dissipation components include: a cooling fan and / or an air pump and / or an air compressor to enhance air flow and achieve better heat dissipation effect; more preferably, the air-cooled heat dissipation components also include: an air-cooled temperature sensor, which is used to monitor the temperature of the hydraulic component 5. When the temperature exceeds the set value, it will send a signal to the control system described later, thereby adjusting the cooling fan speed to ensure that the temperature of the hydraulic component 5 is effectively controlled.

[0052] Preferably, reference Figure 1 and Figure 2 The mobile drag pump further includes a telescopic support leg 6 arranged below the frame 1.

[0053] In this embodiment, telescopic legs 6 are added to the mobile pump for adjusting its height and expanding its applicability. More preferably, the telescopic legs 6 are arranged in two groups, one on each side of the running wheel 2, with several legs in each group symmetrically distributed on both sides of the running wheel 2. While adjusting the travel height, the symmetrically distributed telescopic legs 6 are adjusted in tandem to balance the mobile pump and prevent it from tilting. More preferably, support plates are provided at the ends of the telescopic legs 6 to increase the contact area between the telescopic legs 6 and the tunnel floor, providing better support and anti-tilt effects. For example, the telescopic legs 6 are arranged in two groups, each with two legs, on either side of the running wheel 2. With the conical joint 31 and the cylindrical bayonet 32 ​​rigidly locked, the two groups of four telescopic legs 6 extend synchronously when the mobile pump is conveying concrete, supporting the pump. Simultaneous adjustment of the four telescopic legs 6 ensures the mobile pump reaches a balanced state and prevents it from tilting. It is understood that the telescopic legs 6 are telescopic hydraulic cylinders connected to the hydraulic assembly 5, and may also be structures with telescopic functions such as air cylinders, worm gears, and rack and pinion. More preferably, the telescopic legs 6 are manually adjustable telescopic members to ensure that the balance performance of the mobile pump is not affected in the event of a power outage. For example, the telescopic assembly 6 is a scissor-type telescopic member, a worm gear, and a rack and pinion structure with manually adjustable telescopic functions.

[0054] Preferably, reference Figure 2 The mobile drag pump further comprises: guardrails 71 arranged on both sides of the frame 1 and a guard grid plate 72 arranged on one side of the frame 1; a plurality of grid holes are arranged on the guard grid plate 72.

[0055] In this embodiment, the protective grid 72 is the operating position for the operator. A plurality of grid holes are provided on the protective grid 72 to prevent water, dust and leaked concrete from accumulating on the protective grid 72 and adversely affecting the operator's operation; guardrails 71 are added on both sides of the frame 1 to effectively prevent the operator from accidentally falling during operation, thereby improving the safety of the mobile drag pump.

[0056] Preferably, the mobile drag pump further comprises: a control device, which is used to control the working state of the mobile drag pump, visually display the working state of the mobile drag pump, and store and record the working data of the mobile drag pump.

[0057] In this embodiment, a control device is added to the mobile pump to further control the operating states of the first telescopic member, conveying assembly 4, hydraulic assembly 5, cooling assembly, and telescopic legs 6. Specifically, the control device is used to control the extension and retraction of the first telescopic member, thereby controlling the extension and retraction of the tapered joint 31, and thereby controlling the connection and disconnection of the mobile pump from the mobile device. Simultaneously, the control device further controls the delivery volume, delivery speed, pumping pressure, and operating time of concrete within the conveying assembly 4 to ensure that the conveying assembly 4 operates within a normal state. The control device further controls the temperature of the hydraulic system and the cooling assembly provided on one side of the hydraulic system to ensure that the hydraulic assembly 5 operates properly and within a set temperature range, thereby increasing the service life of the mobile pump. The control device further controls the extension and retraction of the telescopic legs 6 to ensure the balance of the mobile pump. Specifically, the control device also includes a wireless remote control, a display screen, a memory, and a control cabinet. The control device remotely controls, via a remote control and control cabinet, the following: the concrete delivery volume, delivery speed, pumping pressure, and operating time of the delivery component 4; the temperature of the hydraulic component 5 and the cooling component; and the extension and retraction of the first telescopic member and the telescopic legs 6. Remote operation of the control device via a remote control greatly improves operational convenience. The control device displays the operating status of each component of the mobile pump in real time via a display screen, enhancing the visualization of the mobile pump's operating status. The control device stores and records the mobile pump's operating data in a memory to ensure traceability of the operating status data. It is worth noting that the key to this application is to provide a mobile pump that mechanically connects the mobile pump to the mobile device and delivers concrete. The specific control process, action time, and travel path for the movement, lifting, and movement of each component can be implemented by editable logic devices such as a PLC, and will not be detailed here.

[0058] On the other hand, the present invention also provides a secondary lining trolley, comprising any one of the above-mentioned mobile drag pumps.

[0059] In this embodiment, the present invention further provides a secondary lining trolley, comprising any of the above-mentioned mobile drag pumps. A cylindrical bayonet 32 ​​of the mobile drag pump is provided on the secondary lining trolley. When the secondary lining trolley moves, the mobile drag pump's conical joint 31 extends into the cylindrical bayonet 32, forming a rigid lock. At this point, the mobile drag pump follows the secondary lining trolley, improving the pump's mobility. Furthermore, the design of the conical joint 31 and the cylindrical bayonet 32 ​​provides a high-strength connection between the drag pump and the secondary lining trolley, enabling rapid disassembly and installation of the mobile drag pump. Furthermore, the design of the conical joint 31 and the cylindrical bayonet 32, with the connection between the conical joint 31 and the cylindrical bayonet 32 ​​forming a circular ring, avoids imbalance caused by deformation or improper installation at the connection in other connection methods, thereby greatly improving the balance performance of the mobile drag pump. When the secondary lining trolley is pouring concrete in the tunnel, the conical joint 31 of the mobile drag pump is retracted and disengaged from the cylindrical bayonet 32, and the conveying assembly 4 of the mobile drag pump is connected to the pouring system of the secondary lining trolley to convey concrete to the secondary lining trolley. At this time, the mobile drag pump and the secondary lining trolley are flexibly connected through the conveying pipe, which effectively avoids vibration caused by pouring and other actions of the secondary lining trolley, causing vibration of the connection and the mobile drag pump, thereby avoiding damage to the connection and the mobile drag pump due to vibration and increasing the service life of the mobile drag pump.

[0060] The secondary lining trolley described above is based on the aforementioned mobile drag pump. Its technical effects and features are not described in detail here. The above-described embodiments merely represent several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that those skilled in the art will be able to devise numerous variations and improvements without departing from the concept of the present invention, and these variations and improvements fall within the scope of protection of the present invention.

Claims

1. A mobile drag pump, characterized in that: include: Frame, travel wheels, connection components, conveying components and hydraulic components; Frame, used to support and connect various components on the mobile drag pump; The traveling wheel is arranged under the frame and is a single track wheel; The connection assembly is arranged above the rack; The connecting assembly includes: a conical joint and a cylindrical bayonet, wherein the conical joint is telescopically arranged below the cylindrical bayonet; the cylindrical bayonet is connected to the moving device; A conveying assembly is arranged above the frame and is used for conveying concrete; The hydraulic assembly is arranged above the frame and is used to provide power for the mobile drag pump.

2. The mobile drag pump according to claim 1, characterized in that: A first telescopic member is arranged below the conical joint; and a dust cover is arranged above the cylindrical bayonet.

3. The mobile drag pump according to claim 1, characterized in that: The conveying assembly includes: a feed hopper, a first conveying section vertically connected to the feed hopper, a second conveying section horizontally connected to the first conveying section, and a discharge port arranged at the end of the second conveying section.

4. The mobile drag pump according to claim 3, characterized in that: The feed hopper is rotatably connected to the first end of the first conveying section, and the second end of the first conveying section is rotatably connected to the first end of the second conveying section.

5. The mobile drag pump according to claim 1, characterized in that: A feed screen is arranged above the feed hopper, and a plurality of sieve holes are arranged on the feed screen; an inclined guide plate is arranged on one side of the feed hopper.

6. The mobile drag pump according to claim 1, characterized in that: The delivery assembly also includes: a delivery valve and a delivery flow sensor; The flow sensor includes: a first flow sensor and a second flow sensor. The first flow sensor is arranged at the front end of the delivery valve, and the second flow sensor is arranged at the rear end of the delivery valve.

7. The mobile drag pump according to claim 1, characterized in that: The conveying component includes: a conveying pump and an S valve; the conveying pump uses a horizontal double cylinder to pump concrete, and the S valve is used to switch the horizontal double cylinder.

8. The mobile drag pump according to claim 1, characterized in that: The utility model also comprises a telescopic support leg arranged below the frame.

9. The mobile drag pump according to any one of claims 1 to 8, characterized in that: Also includes: control devices; The control device includes: a wireless remote controller, a display screen, a memory and a control cabinet.

10. A secondary lining trolley, characterized in that: The mobile drag pump comprises the mobile drag pump according to any one of claims 1 to 9.

Images