CN203548169U - Mortar pump depressurizing system and mortar pump - Google Patents
Mortar pump depressurizing system and mortar pump Download PDFInfo
- Publication number
- CN203548169U CN203548169U CN201320589226.0U CN201320589226U CN203548169U CN 203548169 U CN203548169 U CN 203548169U CN 201320589226 U CN201320589226 U CN 201320589226U CN 203548169 U CN203548169 U CN 203548169U
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- mortar pump
- spool
- pressure relief
- mortar
- pulp cutlet
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Abstract
The utility model discloses a mortar pump depressurizing system. A first blowdown port is arranged on the pipe wall of a pressure pipeline, and a valve core capable of closing or opening the first blowdown port is arranged on the outer side of the pipe wall of the pressure pipeline and connected with a driving part. The valve core is directly matched with the first blowdown port on the pipe wall of the pressure pipeline, so that a range of a dead zone can be greatly reduced and even eliminated, and the problem that the valve core is difficult to open due to mortar hardening or depressurization cannot be realized due to the fact that the valve core is opened while the first blowdown port is blocked is solved. The utility model further discloses a mortar pump which comprises a hopper and a pumping system, and a discharging port of the pumping system is connected with the mortar pump depressurizing system.
Description
Technical field
The utility model relates to engineering machinery field, particularly a kind of mortar pump pressure relief system and the mortar pump of this mortar pump pressure relief system is installed.
Background technique
At present, in pumping mortar, may there is the phenomenon of mortar plugging in mortar pump, and mortar plugging meeting causes overpressure in pumping system and delivery line, is easy to make mortar pump to be damaged.In order to address this problem, will carry out in time pressure release, existing way is to be connected to pressure relief pipe between discharging pressure piping and hopper, and in pressure relief pipe, ball valve is installed, the stop valve such as gate valve; Under normal pumping operating mode, stop valve is in closed condition, and mortar flows to discharge port by material feeding mouth; While needing pressure release, open stop valve, mortar flows to pressure relief pipe by material feeding mouth, and flows back to hopper from pulp cutlet.But, because these stop valves are all modular types, between the spool of stop valve and the material feeding mouth of stop valve, always exist a part to dock space; Again because stop valve will dock and seal with pressure piping, for the convenience and the stability that achieve a butt joint and seal, on pressure piping, also can leave the butt tube of certain length with the joint of stop valve, based on above structural feature, after pressure piping docks with stop valve, the spool that causes stop valve leaves long one section to pressure piping and the crossing of pressure relief pipe and docks space; Because mortar ratio is easier to harden, use after mortar pump for a long time again, thereby mortar can harden gradually in above-mentioned docking space, formation dead band, causes stop valve not opened; Or after stop valve is opened, pipeline is blocked and cannot pressure release; In addition, the design pressure value of common stop valve is lower, not too adapts to the requirement of mortar pumping, although but special stop valve design pressure value reaches requirement, price is very expensive, is unfavorable for applying.
Model utility content
In view of this, the utility model proposes a kind of mortar pump pressure relief system, this mortar pump pressure relief system reduces dead band greatly, after having solved spool that mortar pump causes because mortar hardens and opening difficulty or spool and open because of pressure relief pipe block cannot pressure release problem.In addition, the utility model has also proposed a kind of mortar pump that this pressure relief system is installed.
On the one hand, the utility model provides mortar pump pressure relief system, comprises pressure piping, offers the first pulp cutlet on the tube wall of described pressure piping, the tube wall arranged outside of described pressure piping has the spool that can seal or open described the first pulp cutlet, and described spool is connected with driver part.
Further, the tube wall outside of described pressure piping is connected with discharge pipe, and described discharge pipe communicates with described the first pulp cutlet, and described spool is arranged in described discharge pipe.
Further, one end of described spool is provided with spherical plug, and described the first pulp cutlet is the ball-and-socket opening matching with the shape and size of described spherical plug.
Further, the side that described the first pulp cutlet coordinates with spool is provided with wear ring.
Further, described driver part is straight line driving mechanism, and described straight line driving mechanism drives the center line movement of described spool along described the first pulp cutlet.
Further, described straight line driving mechanism comprises pressure cylinder, and the piston of described pressure cylinder is fixedly connected with spool.
Further, the cylinder barrel of described pressure cylinder and described discharge pipe are integrally formed.
Further, described discharge pipe is provided with the second pulp cutlet between the first pulp cutlet and piston, and described the second pulp cutlet is connected with pressure relief pipe.
Further, the tube wall of described discharge pipe has through hole, and one end of described spool is passed through hole and is connected with described straight line driving mechanism.
A kind of mortar pump pressure relief system that the utility model provides, offers the first pulp cutlet on the tube wall of pressure piping, the tube wall arranged outside of pressure piping has the spool that can seal or open the first pulp cutlet, and spool is connected with driver part; Because spool directly coordinates with the first pulp cutlet on pressure piping tube wall, therefore can greatly reduce the even deadband eliminating of scope in dead band, like this, with regard to there will not be because mortar hardens, cause spool to open difficulty, although or spool open the first pulp cutlet blocked and cause cannot pressure release problem.
On the other hand, the utility model also provides a kind of mortar pump, comprises hopper and pumping system, and the discharge port of described pumping system is connected to the mortar pump pressure relief system described in above-mentioned any one.Wherein, discharge port connects pressure piping, and the first pulp cutlet is connected to hopper.
The mortar pump that the utility model provides, comprises above-mentioned mortar pump pressure relief system, and because above-mentioned mortar pump pressure relief system has above-mentioned beneficial effect, therefore mortar pump also should have identical beneficial effect, at this, no longer applies and states.
Accompanying drawing explanation
The accompanying drawing that forms a part of the present utility model is used to provide further understanding of the present utility model, and schematic description and description of the present utility model is used for explaining the utility model, does not form improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the structural representation of the mortar pump pressure relief system in the utility model specific embodiment one;
Fig. 2 is the structural representation of the mortar pump pressure relief system in the utility model specific embodiment two;
Fig. 3 is the structural representation of the mortar pump pressure relief system in the utility model specific embodiment three.
Embodiment
It should be noted that, in the situation that not conflicting, the feature in embodiment and embodiment in the utility model can combine mutually.1 to Fig. 3 also describe the utility model in detail below with reference to the accompanying drawings in conjunction with the embodiments.
As shown in Figure 1, the utility model specific embodiment one provides a kind of mortar pump pressure relief system, comprise pressure piping, on the tube wall of pressure piping, offer the first pulp cutlet 3, the tube wall arranged outside of pressure piping has spool 41, and this spool 41 seals the first pulp cutlet 3 during for the normal pumpdown of mortar pump, or in needs pressure release, opens the first pulp cutlet 3, spool 41 is connected with driver part, orders about spool 41 move by driver part; The tube wall outside of pressure piping is also connected with discharge pipe 4, and discharge pipe 4 communicates with the first pulp cutlet 3, and spool 41 is arranged in discharge pipe 4; The left end of spool 41 is provided with plug, and right-hand member is connected with driver part.Because the first pulp cutlet 3 is directly opened on the tube wall of pressure piping, therefore the plug of spool 41 just directly shutoff on the tube wall of pressure piping, make dead band reduce even to disappear, like this, just there will not be because the harden spool 41 that causes of mortar is blocked and opens difficulty, although or spool 41 open that the first pulp cutlet is blocked and problem that cannot pressure release.For plug is coordinated better with the first pulp cutlet 3, strengthen the sealability of plug to the first pulp cutlet 3, plug can be designed to spherical, and the first pulp cutlet 3 is designed to the ball-and-socket opening matching with the shape and size of this spherical plug 411, spherical like this plug 411 just can well seal the first pulp cutlet 3.In order to increase the wear resistance at the first pulp cutlet 3 places, avoid the tube wall of pressure piping to occur revealing because of wearing and tearing, a side that can coordinate with spool 41 at the first pulp cutlet 3 is provided with wear ring 43, and spherical plug 411 shutoff are on wear ring 43.
Concrete, driver part is straight line driving mechanism, and straight line driving mechanism drives the center line movement of spool 41 along the first pulp cutlet 3, and this linear drives is more conducive to the shutoff of plug to the first pulp cutlet 3; This straight line driving mechanism specifically can comprise pressure cylinder 48, and the piston 42 in pressure cylinder 48 is fixedly connected with spool 41, and piston 42 is driven by hydraulic oil, concrete, can on pressure cylinder 48, offer hydraulic fluid port 47, and hydraulic fluid port 47 connects control valve, oil hydraulic pump and fuel tank.
It should be noted that, between the cylinder barrel of pressure cylinder 48 and discharge pipe 4, should closely be connected, cylinder barrel and the discharge pipe 4 of preferred pressure cylinder 48 are integrally formed; Or pressure cylinder 48 is one section on discharge pipe 4, and the inside of discharge pipe 4 is designed to the surface that seals and be slidably matched with piston 42; In addition, discharge pipe 4 is provided with the second pulp cutlet between the first pulp cutlet 3 and piston 42, and the second pulp cutlet is connected with pressure relief pipe 5.
The principle that this mortar pump pressure relief system carries out pressure release is: mortar pump carries out before pumpdown, oil hydraulic pump is to pressure cylinder 48 input hydraulic pressure oil, driven plunger 42 and spool 41 are moved to the left, until the plug of spool 41 blocks the first pulp cutlet 3, the first pulp cutlet 3 and the second pulp cutlet are blocked by plug; When mortar pump carries out normal pumpdown, mortar is entered by material feeding mouth 1, the pressure piping of flowing through, and be sprayed onto the predetermined area from discharge port 2; Now, because plug has blocked the first pulp cutlet 3, so mortar can not enter pressure relief pipe 5; When operator finds the mortar overpressure in pressure piping, or when pressure-detecting device detects mortar overpressure, will carry out pressure release, the first fuel feeding of stop solution press pump, and adjust control valve, under the promotion of mortar pressure, spool 41 moves right, and mortar is pushed plug open, from the second pulp cutlet pressure relief pipe 5 of flowing through, finally get back to hopper, thereby complete pressure leak process.
In addition, for this mortar pump pressure relief system, not just for pressure release, can also be used for the cleaning of pumping system, after mortar pump pumping mortar, the interior also residual a lot of mortar of delivery pipe, need to clean out timely, otherwise there will be mortar to harden and the serious consequence of retaining pressure pipeline; Specific operation are that shutoff discharge port 2 adds water in hopper, open pumping system, water in hopper enters pressure piping, washes out the mortar in pressure piping, when hydraulic pressure arrives certain value, spool 41 is opened, water enters pressure relief pipe 5 by the first pulp cutlet 3, then enters hopper, and now water can circulate, constantly rinse the mortar in delivery pipe, reach the object of cleaning.In addition, this mortar pump pressure relief system also has a purposes, carrying out after the operation of high building mortar spraying, for pressure piping is cleaned in time and avoided waste, finally want water that the mortar force feed in pressure piping is gone out, after force feed is complete, water in pressure piping need to release, and because pipeline is long, if tear pipe open, discharges water and can cause water to splash everywhere, affect construction site, operation is also inconvenient; Now, can open spool 41 and carry out the pressure release of water, relief current back hopper, operation is very easy.Moreover this mortar pump pressure relief system can also be used for initiatively ending dnockout, under some emergency situations, temporarily can not termination of pumping in the time of handling failure, now can open spool 41, realize pulp cutlet discharging, the not discharging of mortar pump discharge port, to complete the processing of fault.During for the unlatching of hydraulic control spool 41, spool 41 cracking pressure values can be set very easily, its pressure range can be very wide, and can also well adapt to the high pressure environment of (being for example greater than 5MPa), make the application of this mortar pump pressure relief system obtain larger expansion.
In addition, because the hydraulic oil that need to rely on of spool 41 drives, when mortar carries out pressure release, mortar likely can enter in pressure cylinder 48, cause hydraulic system to be damaged, therefore need piston 42 further to seal, concrete way can be, between piston 42 and the inwall of pressure cylinder 48, seal ring 45 is set; In order to prevent that piston 42 from occurring eccentric wear in the process of slippage, can also between piston 42 and the inwall of pressure cylinder 48, guide pad 46 be set, to prevent piston 42 part position excessive wears, occur revealing.
As shown in Figure 2, a kind of mortar pump pressure relief system that the utility model specific embodiment two provides, is mainly with the difference of specific embodiment one, the tube wall of discharge pipe 4 has through hole, and the right-hand member of spool 41 passes through hole and is connected with straight line driving mechanism; It should be noted that, the right-hand member of spool 41 need to pass piston 42, and be sealed and matched with piston 42, the position that the periphery of spool 41 contacts with piston 42 will further seal, therefore can be installed with baffle ring 412 in the centre of spool 41, baffle ring 412 closely cooperates near the end face of the first pulp cutlet 3 with piston 42.In this embodiment, can be moved by straight line driving mechanism driven plunger 42, also can be moved by hydraulic oil driven plunger 42, can be also the two together driven plunger 42 move.Concrete, this straight line driving mechanism can be oil cylinder, cylinder or leading screw.The present embodiment also can be removed piston 42, only needs spool 41 and the through hole on discharge pipe 4 tube walls to be sealed and matched.
As shown in Figure 3, the utility model specific embodiment three provides a kind of mortar pump pressure relief system, the main distinction of this embodiment and specific embodiment two is, discharge pipe 4 right-hand members are that the right-hand member of open state piston 42 is directly connected with straight line driving mechanism, only by straight line driving mechanism driven plunger 42, moved, as for baffle ring 412, guide pad 46 and seal ring 45, can not arrange, this mortar pump pressure relief system is relatively simple for structure, also than being easier to, realizes.
The utility model embodiment four also provides a kind of mortar pump, comprise hopper, pumping system, the discharge port of pumping system is connected to the mortar pump pressure relief system described in above-mentioned any one, this mortar pump can carry out pressure release processing in time, avoided the excessive and impact such as device damage of causing of mortar pressure in pressure piping.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (10)
1. a mortar pump pressure relief system, comprise pressure piping, it is characterized in that, on the tube wall of described pressure piping, offer the first pulp cutlet (3), the tube wall arranged outside of described pressure piping has the spool (41) that can seal or open described the first pulp cutlet (3), and described spool (41) is connected with driver part.
2. mortar pump pressure relief system according to claim 1, it is characterized in that, the tube wall outside of described pressure piping is connected with discharge pipe (4), and described discharge pipe (4) communicates with described the first pulp cutlet (3), and described spool (41) is arranged in described discharge pipe (4).
3. mortar pump pressure relief system according to claim 1, is characterized in that, one end of described spool (41) is provided with spherical plug (411), and described the first pulp cutlet (3) is the ball-and-socket opening matching with the shape and size of described spherical plug (411).
4. mortar pump pressure relief system according to claim 1, is characterized in that, the side that described the first pulp cutlet (3) coordinates with spool (41) is provided with wear ring (43).
5. mortar pump pressure relief system according to claim 2, is characterized in that, described driver part is straight line driving mechanism, and described straight line driving mechanism drives the center line movement of described spool (41) along described the first pulp cutlet (3).
6. mortar pump pressure relief system according to claim 5, is characterized in that, described straight line driving mechanism comprises pressure cylinder (48), and the piston (42) of described pressure cylinder (48) is fixedly connected with spool (41).
7. mortar pump pressure relief system according to claim 6, is characterized in that, the cylinder barrel of described pressure cylinder (48) and described discharge pipe (4) are integrally formed.
8. mortar pump pressure relief system according to claim 7, is characterized in that, described discharge pipe (4) is provided with the second pulp cutlet between the first pulp cutlet (3) and piston (42), and described the second pulp cutlet is connected with pressure relief pipe (5).
9. mortar pump pressure relief system according to claim 5, is characterized in that, the tube wall of described discharge pipe (4) has through hole, and one end of described spool (41) is passed through hole and is connected with described straight line driving mechanism.
10. a mortar pump, comprises hopper and pumping system, it is characterized in that, the discharge port of described pumping system is connected to the mortar pump pressure relief system as described in claim 1-9 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320589226.0U CN203548169U (en) | 2013-09-24 | 2013-09-24 | Mortar pump depressurizing system and mortar pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320589226.0U CN203548169U (en) | 2013-09-24 | 2013-09-24 | Mortar pump depressurizing system and mortar pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203548169U true CN203548169U (en) | 2014-04-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320589226.0U Expired - Lifetime CN203548169U (en) | 2013-09-24 | 2013-09-24 | Mortar pump depressurizing system and mortar pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203548169U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106115273A (en) * | 2016-08-16 | 2016-11-16 | 攀枝花市九鼎智远知识产权运营有限公司 | A kind of mining mortar delivery pipe road |
-
2013
- 2013-09-24 CN CN201320589226.0U patent/CN203548169U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106115273A (en) * | 2016-08-16 | 2016-11-16 | 攀枝花市九鼎智远知识产权运营有限公司 | A kind of mining mortar delivery pipe road |
| CN106115273B (en) * | 2016-08-16 | 2018-07-03 | 太原理工大学 | A kind of mining mortar delivery pipe road |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140416 |