Hoisting device for overhauling circulating pump

Abstract

The invention relates to the technical field of circulating pump overhauling, in particular to a circulating pump overhauling hoisting device which comprises a supporting mechanism. The lifting mechanism is arranged on the supporting mechanism; the pinch bar guide rail comprises a supporting arm rotationally arranged on the lifting mechanism and a front guide wheel arranged on the supporting arm, a telescopic arm is arranged on the supporting arm, and a bunching guide wheel is arranged on the telescopic arm; the electric capstan is arranged on the telescopic arm; the sling is connected with the circulating pump needing to be hoisted, an operator can adjust the length of the telescopic arm, adjust the position of the electric capstan and cooperate with the lever principle to adjust the torque to be proper, during hoisting, the supporting arm is lifted by pressing the telescopic arm, whether the weights on the two sides are balanced or not is judged, and after a pinch bar guide rail is stable, hoisting is completed. The sling is wound through the electric capstan, the circulating pump is hoisted, an operator can hoist and overhaul the circulating pump conveniently, and the labor-saving effect can be achieved.

Description

Technical Field

[0001] The invention relates to the technical field of circulating pump maintenance, in particular to a circulating pump maintenance hoisting device. Background Art

[0002] For the site of circulating pump maintenance, there are many pipelines and other equipment around, and the space is relatively small, so there is no condition for installing a crane or a monorail crane. In addition, the surrounding pipelines are not strong enough and cannot be hoisted as a suspension beam. When repairing the circulating pump, it is difficult to lift the circulating pump from the top of the equipment and disassemble it. Therefore, a circulating pump maintenance hoisting device is proposed. Summary of the invention

[0003] In view of the above problems or problems existing in the prior art, the present invention is proposed.

[0004] Therefore, the object of the present invention is to provide a circulating pump maintenance hoisting device.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a circulating pump maintenance hoisting device, comprising:

[0006] Support mechanism;

[0007] A lifting mechanism, which is arranged on the supporting mechanism;

[0008] A crowbar guide rail, comprising a support arm rotatably arranged on the lifting mechanism, and a front guide wheel arranged on the support arm, wherein the support arm is provided with a telescopic arm, and the telescopic arm is provided with a cable guide wheel;

[0009] An electric winch, which is arranged on the telescopic arm;

[0010] By controlling the telescopic length of the telescopic arm, the torque at both ends of the crowbar guide rail when hoisting an object is adjusted.

[0011] As a preferred solution of the circulating pump maintenance hoisting device of the present invention, the telescopic arm includes a slide rail and a slide column slidably arranged in the slide rail, the slide rail is provided with a first positioning hole, the slide column is provided with a second positioning hole, and also includes a latch arranged inside the first positioning hole and the second positioning hole;

[0012] The cable guide wheel and the electric winch are arranged on the sliding column.

[0013] As a preferred solution of the circulating pump maintenance hoisting device of the present invention, it further comprises a clamping mechanism and a connecting mechanism;

[0014] The support arm is provided with a load-bearing shaft and a connecting shaft, and the connecting shaft is provided with a receiving groove.

[0015] As a preferred solution of the circulating pump maintenance lifting device of the present invention, the clamping mechanism includes a sliding rod slidably arranged in the accommodating groove, and a retaining ring arranged on the outer wall of the sliding rod, a spring is provided at the end of the retaining ring, and also includes a clamping strip arranged at the end of the sliding rod.

[0016] As a preferred solution of the circulating pump maintenance hoisting device of the present invention, wherein: the connecting mechanism comprises a rotating disk rotatably arranged on the connecting shaft, and a deflection groove arranged in the rotating disk, wherein the deflection groove is provided with a one-way tooth groove;

[0017] The one-way tooth groove and the clamping strip are clamped and connected;

[0018] The rotating disk is connected to the slide rail.

[0019] As a preferred solution of the circulating pump maintenance hoisting device of the present invention, wherein: a rotating sleeve is provided on the support arm.

[0020] As a preferred solution of the circulating pump maintenance hoisting device of the present invention, wherein: the pry bar guide rail further includes a movable arm rotatably arranged on the support arm;

[0021] The support arm is provided with a blocking rod;

[0022] The movable arm comprises a rotating rod rotatably arranged on the supporting arm, a retaining groove arranged on the rotating rod, and a movable wheel arranged at the end of the rotating rod.

[0023] As a preferred solution of the circulating pump maintenance hoisting device of the present invention, wherein: the lifting mechanism comprises an electric telescopic rod arranged on the supporting mechanism, and a supporting shaft frame rotatably arranged on the telescopic end of the electric telescopic rod;

[0024] The supporting shaft frame and the load-bearing shaft are rotatably connected.

[0025] As a preferred solution of the circulating pump maintenance hoisting device of the present invention, wherein: the supporting mechanism includes symmetrically arranged vertical rods and a crossbeam arranged on the vertical rods, the interior of the crossbeam is slidably connected with a connecting beam, and also includes a positioning bolt arranged on the crossbeam;

[0026] The electric telescopic rod is connected to the connecting beam.

[0027] As a preferred solution of the circulating pump maintenance hoisting device of the present invention, the supporting mechanism further includes a horizontal frame arranged on the vertical rod, and a universal wheel arranged on the horizontal frame.

[0028] The beneficial effects of the circulating pump maintenance hoisting device of the present invention are as follows: the present invention connects the sling and the circulating pump to be hoisted, and the operator can adjust the length of the telescopic arm, adjust the position of the electric winch, and adjust to a suitable torque by using the lever principle. During hoisting, the supporting arm is lifted by pressing the telescopic arm to determine whether the weight on both sides is balanced. After the crowbar guide rail is stable, the sling is reeled in by the electric winch to lift the circulating pump, making it convenient for the operator to hoist and repair the circulating pump and achieving a labor-saving effect. The supporting arm and the lifting mechanism are rotatably connected and can be folded, which can reduce the space occupied during movement and facilitate the placement of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0030] Figure 1 This is the overall structural diagram of the circulating pump maintenance lifting device.

[0031] Figure 2 This is a structural diagram of the clamping mechanism and connecting mechanism of the circulating pump maintenance lifting device.

[0032] Figure 3 This is a partial cross-sectional structural diagram of the circulating pump maintenance lifting device.

[0033] Figure 4 This is a schematic diagram of the structure of the support mechanism of the circulating pump maintenance lifting device.

[0034] Figure 5 This is a structural schematic diagram of the circulating pump maintenance lifting device with the support arm and telescopic arm in parallel.

[0035] Figure 6 This is a schematic diagram of the structure of the telescopic arm of the circulating pump maintenance hoisting device in the tilted state.

[0036] Figure 7 This is a schematic diagram of the structure of the circulating pump maintenance hoisting device with the movable arm and telescopic arm in parallel.

[0037] In the figure: 100, supporting mechanism; 101, vertical rod; 102, horizontal beam; 103, connecting beam; 104, positioning bolt; 105, horizontal frame; 106, universal wheel; 200, lifting mechanism; 201, electric telescopic rod; 202, supporting shaft frame; 300, pry bar guide rail; 301, supporting arm; 301a, load-bearing shaft; 301b, connecting shaft; 301c, stop rod; 301d, rotating shaft sleeve; 301e, receiving groove; 302, front guide wheel; 303, telescopic arm; 303 a, slide rail; 303b, slide column; 303c, latch; 303d, first positioning hole; 303e, second positioning hole; 304, movable arm; 304a, rotating rod; 304b, retaining groove; 304c, movable wheel; 305, cable guide wheel; 400, electric winch; 500, clamping mechanism; 501, slide rod; 501a, retaining ring; 502, spring; 503, clamping strip; 600, connecting mechanism; 601, rotating disk; 602, deflection groove; 603, one-way tooth groove. DETAILED DESCRIPTION

[0038] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0039] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0040] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0041] Example 1, reference Figures 1 to 7 , which is the first embodiment of the present invention, provides a circulating pump maintenance hoisting device, including a supporting mechanism 100; in this embodiment, the supporting mechanism 100 is used to place and support the device.

[0042] The lifting mechanism 200 is disposed on the supporting mechanism 100 . In the present embodiment, the lifting mechanism 200 can be lifted and lowered to adjust the height.

[0043] The crowbar guide rail 300 includes a support arm 301 rotatably mounted on the lifting mechanism 200, and a front guide wheel 302 mounted on the support arm 301. The support arm 301 is provided with a telescopic arm 303, and the telescopic arm 303 is provided with a cable guide wheel 305. In this embodiment, the telescopic arm 303 has the ability to adjust its length.

[0044] The electric winch 400 is disposed on the telescopic arm 303 . In the present embodiment, after the electric winch 400 is disposed on the telescopic arm 303 , it can achieve a counterweight effect through its own weight, making it easier for the operator to press the pry bar guide rail 300 .

[0045] By controlling the telescopic length of the telescopic arm 303, the torque at both ends of the pry bar guide rail 300 when hoisting an object is adjusted.

[0046] When in use, the sling of the electric winch 400 passes through the cable guide wheel 305, and then passes through the front guide wheel 302 to connect the sling and the circulating pump to be hoisted. The operator can adjust the position of the electric winch 400 by adjusting the length of the telescopic arm 303, and adjust to the appropriate torque by using the lever principle. When hoisting, the support arm 301 is lifted by pressing the telescopic arm 303 to determine whether the weight on both sides is balanced. After the crowbar guide 300 is stable, the sling is reeled in by the electric winch 400 to lift the circulating pump, which is convenient for the operator to hoist and repair the circulating pump and can achieve a labor-saving effect. The support arm 301 and the lifting mechanism 200 are rotatably connected and can be folded, which can reduce the space occupied when moving and facilitate the placement of the device.

[0047] Specifically, the telescopic arm 303 includes a slide rail 303a, and a slide column 303b slidably arranged in the slide rail 303a, the slide rail 303a is provided with a first positioning hole 303d, the slide column 303b is provided with a second positioning hole 303e, and also includes a pin 303c arranged inside the first positioning hole 303d and the second positioning hole 303e; the wiring guide wheel 305 and the electric winch 400 are arranged on the slide column 303b. In this embodiment, by pulling out the pin 303c, sliding the slide column 303b, and adjusting the position of the first positioning hole 303d and the second positioning hole 303e and the plug-in pin 303c, the overall length of the telescopic arm 303 can be adjusted, and then the length of the telescopic arm 303 and the support arm 301 during lifting can be adjusted, so as to facilitate the adjustment of the torque, so that the weight at both ends of the telescopic arm 303 and the support arm 301 is close to balance, thereby achieving the purpose of labor-saving operation.

[0048] Example 2, reference Figure 1 to Figure 7 , which is the second embodiment of the present invention. Different from the previous embodiment, it further includes a clamping mechanism 500 and a connecting mechanism 600; a load-bearing shaft 301a and a connecting shaft 301b are provided on the support arm 301, and a receiving groove 301e is provided on the connecting shaft 301b.

[0049] In this embodiment, the load-bearing shaft 301a and the lifting mechanism 200 are rotationally connected. The support arm 301 and the lifting mechanism 200 can be kept in a parallel state by rotation, thereby reducing the occupied space and facilitating the placement of the device. The support arm 301 is rotationally connected to the telescopic arm 303 through the connecting shaft 301b.

[0050] Specifically, the clamping mechanism 500 includes a sliding rod 501 slidably arranged in the accommodating groove 301e, and a retaining ring 501a arranged on the outer wall of the sliding rod 501, and a spring 502 is provided at the end of the retaining ring 501a. It also includes a clamping strip 503 arranged at the end of the sliding rod 501. In this embodiment, the elastic force of the spring 502 can make the sliding rod 501 have a tendency to slide out of the accommodating groove 301e, and then can push the clamping strip 503 to make it have a tendency to move away from the connecting shaft 301b.

[0051] Furthermore, the connecting mechanism 600 includes a rotating disk 601 rotatably arranged on the connecting shaft 301b, and a deflection groove 602 arranged in the rotating disk 601, and a one-way tooth groove 603 is arranged in the deflection groove 602; in the present embodiment, the one-way tooth groove 603 and the clamping strip 503 are clamped and connected; the rotating disk 601 and the slide rail 303a are connected, and a plurality of one-way tooth grooves 603 are arranged in the deflection groove 602.

[0052] Preferably, a rotating sleeve 301d is provided on the support arm 301. In this embodiment, the rotating sleeve 301d itself can rotate and can serve as a guide for the sling.

[0053] The rest of the structure is the same as that of Example 1.

[0054] When in use, due to the limited surrounding space and the provision of some pipes on the top, the telescopic arm 303 cannot be in a horizontal state with the support arm 301 in some cases. Therefore, at this time, the spring 502 can be compressed by pressing the snap-fit ​​strip 503, and the telescopic arm 303 and the support arm 301 are first adjusted to a vertical state, and the support arm 301 is placed above the circulation pump. The height of the support arm 301 is adjusted by the lifting mechanism 200, and then after the support arm 301 can reach a suitable position, the support angles of the telescopic arm 303 and the support arm 301 are adjusted according to the surrounding space conditions. When adjusting, the telescopic arm 303 is directly pushed, and under the guidance of the one-way tooth groove 603, the snap-fit ​​strip 503 is squeezed and pushed to make it The one-way tooth groove 603 is stuck in different positions, and the length of the telescopic arm 303 is adjusted to adjust the torque during lifting. During lifting, the sling and the circulating pump are connected, and the operator presses one end of the telescopic arm 303 to keep the support arm 301 in a horizontal state. Since the telescopic arm 303 is in a tilted downward state, it is convenient for the operator to press, and then the sling is reeled in by the electric winch 400 to realize the lifting of the circulating pump. During lifting, due to the pressure of the operator and the pressure of the weight of the circulating pump on the support arm 301, the one-way tooth groove 603 and the clamping strip 503 will remain in a clamped state. Therefore, when the lifting is subjected to force, the angle between the support arm 301 and the telescopic arm 303 will not change.

[0055] Example 3, reference Figure 1 to Figure 7 , which is the third embodiment of the present invention, is different from the previous embodiment in that the pry bar guide rail 300 further includes a movable arm 304 rotatably disposed on the support arm 301;

[0056] In this embodiment, a blocking rod 301 c is provided on the support arm 301 ; the blocking rod 301 c can support the movable arm 304 .

[0057] The movable arm 304 includes a rotating rod 304a rotatably disposed on the supporting arm 301, a retaining groove 304b disposed on the rotating rod 304a, and a movable wheel 304c disposed at the end of the rotating rod 304a.

[0058] Specifically, the lifting mechanism 200 includes an electric telescopic rod 201 arranged on the supporting mechanism 100, and a support shaft frame 202 rotatably arranged at the telescopic end of the electric telescopic rod 201; in this embodiment, the electric telescopic rod 201 can adjust the height of the support shaft frame 202, and the support shaft frame 202 is rotatably connected to the load-bearing shaft 301a. After lifting, the support shaft frame 202 can be rotated to change the position of the circulating pump after lifting.

[0059] Furthermore, the support mechanism 100 includes symmetrically arranged vertical rods 101, and a horizontal beam 102 arranged on the vertical rod 101. The interior of the horizontal beam 102 is slidably connected to a connecting beam 103, and also includes a positioning bolt 104 arranged on the horizontal beam 102. In this embodiment, the electric telescopic rod 201 is connected to the connecting beam 103. By adjusting the tightness of the positioning bolt 104, the connection tightness between the horizontal beam 102 and the connecting beam 103 can be adjusted, which facilitates the disassembly and size adjustment of the support mechanism 100.

[0060] The support mechanism 100 also includes a horizontal frame 105 arranged on the vertical rod 101, and a universal wheel 106 arranged on the horizontal frame 105. In this embodiment, the setting of the universal wheel 106 can facilitate the movement of the device, and the setting of the horizontal frame 105 can increase the support cross-section and improve the stability when placed.

[0061] The rest of the structure is the same as that of Example 2.

[0062] When in use, the connecting beam 103 can be pulled out from the cross beam 102 by unscrewing the positioning bolts 104, and the supporting mechanism 100 can be disassembled, so that it is convenient to transfer to places with smaller spaces. After reaching the working position, the distance of the universal wheels 106 can be adjusted according to the size of the surrounding working space, and the connecting beam 103 and the cross beam 102 can be fixed by tightening the positioning bolts 104, thereby completing the adjustment of the supporting mechanism 100.

[0063] Reference Figure 5 or Figure 7 When there is enough space around, the movable arm 304 can be rotated to fit with the support arm 301, and the movable arm 304 can be supported by the blocking rod 301c, or it can be close to the telescopic arm 303. At this time, the sling first passes through the cable guide wheel 305 and then passes through the movable wheel 304c. When lifting, the telescopic arm 303 is parallel to the support arm 301, so it can form a larger torque ratio, so the force during pressing can be reduced. When the movable arm 304 is extended to the longest, the device can lift the maximum weight of the object, and the operator's pressing force is also smaller.

[0064] When the surrounding space is small, the telescopic arm 303 can be rotated to be in an inclined state, thereby avoiding interference caused by the top space and making it easier for the operator to press the telescopic arm 303 .

[0065] In addition, when hoisting, the initial state can be set to Figure 1The telescopic arm 303 and the support arm 301 are in a vertical state, and then the retaining groove 304b on the movable arm 304 fits with the rotating shaft sleeve 301d. First, adjust the length of the telescopic arm 303 to a suitable position, press the movable arm 304 to keep it in a horizontal state, and when the electric winch 400 reels the sling, the pulling force of the sling can also pull the telescopic arm 303 to deflect. During the deflection process, the torque will also change. The operator presses the movable arm 304 to feel the change in force. After deflection to a suitable position, the operator changes to provide downward pressure to the telescopic arm 303, which can assist the operator in adjusting the torque ratio.

[0066] In summary, the structures can be flexibly disassembled and adjusted, which makes it easy for the device to enter a narrow place. The structure is light and easy to carry, and the lever principle can be used to save a lot of effort during operation.

[0067] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A circulating pump maintenance hoisting device, characterized in that: include, Support mechanism (100); A lifting mechanism (200) disposed on the supporting mechanism (100); A crowbar guide rail (300), comprising a support arm (301) rotatably arranged on the lifting mechanism (200), and a front guide wheel (302) arranged on the support arm (301), wherein a telescopic arm (303) is arranged on the support arm (301), and a wire guide wheel (305) is arranged on the telescopic arm (303); An electric winch (400) is arranged on the telescopic arm (303); By controlling the telescopic length of the telescopic arm (303), the torque at both ends of the pry bar guide rail (300) is adjusted when hoisting an object.

2. The circulating pump maintenance hoisting device according to claim 1, characterized in that: The telescopic arm (303) comprises a slide rail (303a) and a slide post (303b) slidably arranged in the slide rail (303a), the slide rail (303a) is provided with a first positioning hole (303d), the slide post (303b) is provided with a second positioning hole (303e), and further comprises a latch (303c) arranged inside the first positioning hole (303d) and the second positioning hole (303e); The cable guide wheel (305) and the electric winch (400) are arranged on the sliding column (303b).

3. The circulating pump maintenance hoisting device according to claim 2, characterized in that: It also includes a clamping mechanism (500) and a connecting mechanism (600); The support arm (301) is provided with a load-bearing shaft (301a) and a connecting shaft (301b), and the connecting shaft (301b) is provided with a receiving groove (301e).

4. The circulating pump maintenance hoisting device according to claim 3, characterized in that: The clamping mechanism (500) comprises a sliding rod (501) slidably arranged in the accommodating groove (301e), and a retaining ring (501a) arranged on the outer wall of the sliding rod (501), a spring (502) is arranged at the end of the retaining ring (501a), and also comprises a clamping strip (503) arranged at the end of the sliding rod (501).

5. The circulating pump maintenance hoisting device according to claim 4, characterized in that: The connecting mechanism (600) comprises a rotating disk (601) rotatably arranged on the connecting shaft (301b), and a deflection groove (602) arranged in the rotating disk (601), wherein a one-way tooth groove (603) is arranged in the deflection groove (602); The one-way tooth groove (603) and the clamping strip (503) are clamped and connected; The rotating disk (601) and the slide rail (303a) are connected.

6. The circulating pump maintenance hoisting device according to claim 5, characterized in that: The support arm (301) is provided with a rotating shaft sleeve (301d).

7. The circulating pump maintenance hoisting device according to claim 6, characterized in that: The pry bar guide rail (300) further comprises a movable arm (304) rotatably disposed on the support arm (301); The support arm (301) is provided with a blocking rod (301c); The movable arm (304) comprises a rotating rod (304a) rotatably arranged on the support arm (301), a retaining groove (304b) arranged on the rotating rod (304a), and a movable wheel (304c) arranged at the end of the rotating rod (304a).

8. The circulating pump maintenance hoisting device according to any one of claims 3 to 7, characterized in that: The lifting mechanism (200) comprises an electric telescopic rod (201) arranged on the supporting mechanism (100), and a supporting shaft frame (202) rotatably arranged at the telescopic end of the electric telescopic rod (201); The supporting shaft frame (202) and the load-bearing shaft (301a) are rotatably connected.

9. The circulating pump maintenance hoisting device according to claim 8, characterized in that: The support mechanism (100) comprises symmetrically arranged vertical rods (101) and a crossbeam (102) arranged on the vertical rod (101), wherein a connecting beam (103) is slidably connected inside the crossbeam (102), and further comprises a positioning bolt (104) arranged on the crossbeam (102); The electric telescopic rod (201) and the connecting beam (103) are connected.

10. The circulating pump maintenance hoisting device according to claim 9, characterized in that: The support mechanism (100) further comprises a horizontal frame (105) arranged on the vertical rod (101), and a universal wheel (106) arranged on the horizontal frame (105).

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