CN211220479U

CN211220479U - Packing box assembly and disassembly tools

Info

Publication number: CN211220479U
Application number: CN201921652132.7U
Authority: CN
Inventors: 陈亮; 陈侃; 张建莲; 王娜娜
Original assignee: Petrochina Co Ltd
Current assignee: Petrochina Co Ltd
Priority date: 2019-09-29
Filing date: 2019-09-29
Publication date: 2020-08-11
Anticipated expiration: 2029-09-29

Abstract

The utility model discloses a packing box assembly and disassembly tools belongs to plunger pump maintenance technical field. The method comprises the following steps: the clamping device comprises a first main body and a second main body, wherein the first main body comprises a first holding part and a first clamping ring, the first clamping ring is in a semi-arc shape, and one end of the first clamping ring is fixedly connected with the first holding part; the second main part includes that the second takes portion of holding and second snap ring, and the second snap ring is half circular arc, and the one end and the second of second snap ring are taken portion of holding fixed connection, and the other end of second snap ring is articulated with the other end of first snap ring, and first main part and second main part are configured into, work as for the first portion of holding with the second is taken during portion of holding fixed connection, first snap ring with the second snap ring forms the ring structure. The packing box that drives to be pressed from both sides tightly by packing assembly and disassembly tools is rotatory through the first portion of holding and the second portion of holding that grips and promote fixed connection, realizes the dismantlement or the installation of packing box, has avoided the problem of the rotatory difficulty of staff when bare-handed rotation packing box, improves packing box's change efficiency.

Description

Packing box assembly and disassembly tools

Technical Field

The utility model relates to a plunger pump maintenance technical field, in particular to packing box assembly and disassembly tools.

Background

In the oil field water injection development oil extraction process, a plunger pump is often adopted to pressurize injected water so as to complete water injection indexes. A packing box is arranged in a pump head of the plunger pump, a plunger is arranged in the packing box in a sealing mode, and the plunger is connected with the plunger through a plunger pump pull rod and is driven by an external power transmission wheel to move axially in the packing box. The packing box is usually pegged graft in the packing box flange that is located the pump head, makes the clamping tooth that the packing box inserted the end and the spacing groove chucking in the packing box flange through the axial rotation along the packing box flange, and the rethread bolt fastening packing box flange realizes compressing tightly fixedly to the packing box, uses the packing box to press the cap shutoff to plug up the tip that the packing box stretches out the pump head at last. After a plunger pump runs for a long time, the packing box inside the plunger pump is usually worn out, so that the plunger pump needs to be replaced.

Because the packing box is less with plunger pump head fit clearance for the cooperation is inseparable between each part, and frictional force is great, takes out the packing box more difficult in by the packing box flange. The plunger is lifted off from packing box and packing box pressure cap with the breakout tongs earlier usually among the correlation technique, and the rethread is beaten packing box pressure cap or packing box flange and is made packing box and packing box flange not hard up, rotates packing box through artifical bare-handed at last, makes the card tooth of packing box turn round to taking out the position in by the spacing groove in the packing box flange, takes out packing box in by the packing box flange.

The packing box is heavier in weight, the total weight is 15kg-40kg usually, and the outer surface of the packing box is smooth and has no place to hold, the situation of difficult rotation often appears when the packing box is rotated manually, so that the maintenance time is prolonged, time and labor are wasted when the manual replacement process is adopted, and the replacement efficiency is low.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a packing box assembly and disassembly tools can improve the change efficiency of packing box, technical scheme as follows:

the embodiment of the utility model provides a packing box assembly and disassembly tools, include:

the packing box comprises a first main body and a second main body, wherein the first main body comprises a first holding part and a first clamping ring, the first clamping ring is in a semi-circular arc shape, one end of the first clamping ring in the arc direction of the semi-circular arc shape is fixedly connected with the first holding part, and the first clamping ring is provided with a first side face for clamping the packing box;

the second main body comprises a second holding part and a second clamping ring, the second clamping ring is in a semi-arc shape, one end of the second clamping ring in the arc direction of the semi-arc shape is fixedly connected with the second holding part, the other end of the second clamping ring in the arc direction of the semi-arc shape is hinged with the other end of the first clamping ring in the arc direction of the semi-arc shape, and the second clamping ring is provided with a second side face used for clamping the packing box;

the first body and the second body are configured such that the first snap ring and the second snap ring form a circular ring structure when the first grip portion and the second grip portion are fixedly connected.

Optionally, the packing box disassembling tool further comprises a plurality of cushions, and the plurality of cushions are respectively located on the first side surface and the second side surface.

Optionally, the first side surface has a first mounting groove recessed inwards, and the first mounting groove extends in the length direction of the first snap ring; the second side surface is provided with a second mounting groove which is recessed inwards, the second mounting groove extends in the length direction of the second clamping ring, and the cushion pads are respectively positioned in the first mounting groove and the second mounting groove.

Optionally, the cushion pad is a rubber pad.

Optionally, the packing box assembly and disassembly tools still includes the handle, the handle includes mutually perpendicular's holding rod and connecting rod, the connecting rod with the other end of first portion of holding is connected.

Optionally, the other end of the first holding part is provided with a counter bore, and the connecting rod is located in the counter bore.

Optionally, the first holding part and the second holding part are correspondingly provided with a first threaded hole and a second threaded hole, the connecting rod is provided with a limiting hole, and the second holding part, the first holding part and the connecting rod are fixedly connected through a locking bolt located in the first threaded hole and the limiting hole.

Optionally, the rod body of the connecting rod is provided with a plurality of limiting holes arranged at intervals along the axial direction of the rod body of the connecting rod.

Optionally, a joint of the first holding part and the first snap ring is provided with a reinforcing rib.

Optionally, the first body and the second body are steel structural members or cast iron structural members.

The embodiment of the utility model provides a beneficial effect that technical scheme brought is:

the first and second bodies are expanded by rotating the second snap ring relative to the first snap ring. The first side face of the first clamping ring is connected with the outer surface of the packing box in a matched mode, the second clamping ring is rotated relative to the first clamping ring, the second side face of the second clamping ring is connected with the outer surface of the packing box in a matched mode, and the first clamping ring and the second clamping ring form a circular ring structure around the outer surface of the packing box. With the second portion of holding and the first portion fixed connection of holding, make second snap ring and first snap ring closure and press from both sides tight packing box's surface, the staff can drive the packing box rotation that is pressed from both sides tightly by packing assembly and disassembly tools through the first portion of holding and the second portion of holding that grips and promote fixed connection, realizes the dismantlement or the installation of packing box. The problem of rotatory difficulty when having avoided the staff bare-handed to rotate the packing box improves the change efficiency of packing box.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a packing box disassembling tool according to an embodiment of the present invention;

fig. 2 is a partial schematic structural diagram of a left side view of a packing box assembling and disassembling tool according to an embodiment of the present invention;

fig. 3 is a partial structure sectional view of a packing box assembling and disassembling tool provided by an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

Fig. 1 is a schematic structural diagram of a packing box disassembling tool provided by an embodiment of the present invention. As shown in fig. 1, the packing removal and installation tool includes: a first body 1 and a second body 2.

First main part 1 includes first snap ring 22 of holding, and second snap ring 22 is half-circular arc, and the one end of second snap ring 22 on half-circular arc's circular arc direction and the one end fixed connection of second portion 21 of holding, and the other end of second snap ring 22 on half-circular arc's circular arc direction is articulated with the other end of first snap ring 12 on half-circular arc's circular arc direction, and second snap ring 22 has the second side 221 that is used for centre gripping packing box.

The first body 1 and the second body 2 are configured such that the first snap ring 12 and the second snap ring 22 form a circular ring structure when the first grip 11 and the second grip 21 are fixedly connected.

In the embodiment of the utility model, the packing assembly and disassembly tool is composed of a first main body and a second main body which can move relatively, the first main body comprises a first holding part and a first snap ring connected with one end of the first holding part, the first snap ring is in a semi-circular arc shape, a first side surface is arranged on an inner ring of the semi-circular arc structure of the first snap ring, the packing box is usually in a cylindrical structure, and the first side surface is matched and connected with the outer surface of the packing box; the second main part includes that the second holds the portion and connects the second snap ring in the second portion one end of holding, and the second snap ring is half-circular arc. The other end of second snap ring is the other end of second snap ring for the link with the second portion of holding on half circular arc's circular arc direction promptly, and the other end of first snap ring is the other end of first snap ring for the link with the first portion of holding on half circular arc's circular arc direction promptly, and the other end of second snap ring and the other end of first snap ring are articulated, and the second snap ring can be around the other end relative rotation of first snap ring promptly. And the inner ring positioned on the semicircular arc structure of the second snap ring is provided with a second side surface, and the second side surface is matched and connected with the outer surface of the packing box.

During actual disassembly and assembly, the second snap ring is rotated relative to the first snap ring to expand the first and second bodies. The first side face of the first clamping ring is connected with the outer surface of the packing box in a matched mode, the second clamping ring is rotated relative to the first clamping ring, the second side face of the second clamping ring is connected with the outer surface of the packing box in a matched mode, and the first clamping ring and the second clamping ring form a circular ring structure around the outer surface of the packing box. And fixedly connecting the second holding part with the first holding part, so that the second clamping ring and the first clamping ring are closed and the outer surface of the packing box is clamped. The staff can take the portion and the second through the first portion of holding that holds that grips and promote fixed connection and drive the packing box rotation that is pressed from both sides tightly by packing assembly and disassembly tools, realizes the dismantlement or the installation of packing box, has avoided the problem of the staff rotatory difficulty when bare-handed rotation packing box, improves packing box's change efficiency.

It should be noted that, in the embodiment of the present invention, the packing box dismounting tool utilizes the first snap ring 12 and the second snap ring 22 to clamp the outer surface of the packing box, and utilizes the friction between the outer surfaces of the first side 121 and the second side 221 and the packing box to ensure that the packing box can synchronously rotate and move when the worker rotates and moves the packing box dismounting tool, so as to realize the replacement of the packing box.

For example, in the related art, a worker usually unloads the plunger from the packing box and the packing box pressing cap by using a pipe wrench, strikes the packing box pressing cap or the packing box flange by using a large hammer to loosen the packing box and the packing box flange, and finally rotates the packing box by manual hand to enable the clamping teeth of the packing box to be turned to the taking-out position in the limit groove in the packing box flange, so that the packing box is taken out from the packing box flange. The embodiment of the utility model provides an in, because packing box assembly and disassembly tools's first snap ring 12 and second snap ring 22 press from both sides tight packing box's surface, the staff can press the cap through promoting first portion of holding 11 and the light packing box that rotates of second portion of holding 21, need not to use the sledge hammer to press cap or packing box flange to the packing box and strike and carry out supplementary dismantlement, avoided pressing cap, packing box flange and plunger pump other spare parts to the packing box and caused the damage.

Optionally, the packing box disassembling tool further includes a plurality of cushions 4, and the plurality of cushions 4 are respectively located on the first side surface 121 and the second side surface 221. The packing box is 45 steel generally and makes metal construction, and in order to guarantee that packing box assembly and disassembly tools can drive packing box synchronous revolution, packing box assembly and disassembly tools need to be big enough to the clamp force of packing box surface. In the embodiment of the present invention, the weight of the packing box is generally 40KG, and the first snap ring 12 and the second snap ring 22 of the packing box dismounting tool need at least 20MPA clamping force to ensure that the packing box dismounting tool can drive the packing box synchronous rotation without generating relative sliding. The packing box dismounting tool is also a metal structural part, so that the clamping force above 20MPA is kept for a long time, the first side surface 121, the second side surface 221 and the outer surface of the packing box are abraded, and the packing box dismounting tool and the packing box are damaged. Through setting up the blotter at first side 121, second side 221, can form the one deck buffer layer between the surface of first snap ring 12, second snap ring 22 and packing box, prevent that packing box assembly and disassembly tools from causing wearing and tearing to the packing box surface after long-time the use, prolonged packing box assembly and disassembly tools's life when protecting the packing box.

Optionally, the cushion 4 is a rubber pad. In general, the static friction coefficient between steel and rubber is 0.9, the static friction coefficient between steel and other metals is 0.15-0.4, and the static friction coefficient between steel and rubber is far larger than that between steel and other metals. Therefore, adopt the rubber pad as blotter 4, can effectively increase the static friction power between packing box assembly and disassembly tools and the packing box surface, further guarantee that packing box assembly and disassembly tools can drive packing box synchronous revolution and can not produce relative slip.

Illustratively, in the disclosed embodiment, the cushion pad 4 is a hard rubber pad. The hard rubber has good chemical stability, corrosion resistance, organic solvent resistance, low water absorption performance, high tensile strength, breaking strength and excellent electrical insulation performance, is not easy to deform, can effectively prolong the service life of the cushion pad 4, and further prolongs the service life of the packing box disassembling tool.

Optionally, the first side surface 121 has a first mounting groove 1211 recessed inwards, and the first mounting groove 1211 extends in the length direction of the first snap ring 12; the second side 221 has a second mounting groove 2211 recessed inward, the second mounting groove 2211 extends in the length direction of the second snap ring 22, and the cushion pad 4 is respectively located in the first mounting groove 1211 and the second mounting groove 2211. When the packing box assembling and disassembling tool is assembled, the cushion pad is clamped into the corresponding first mounting groove 1211 and the second mounting groove 2211, so that the cushion pad is fixedly connected with the first side surface 121 and the second side surface 221, and the packing box assembling and disassembling tool is simple in structure and convenient to install.

It should be noted that, in other possible implementation manners, the cushion pad 4 may also be attached to the first side surface 121 and the second side surface 221 by rivets, or the cushion pad 4 may also be attached to the first side surface 121 and the second side surface 221 by glue, as long as the fixed connection with the first side surface 121 and the second side surface 221 can be achieved, which is not limited by the present invention.

Fig. 2 is a schematic partial structure view of a left side view of a packing box assembling and disassembling tool provided by an embodiment of the present invention. With reference to fig. 1 and 2, the packing box mounting and dismounting tool further includes a handle 5, the handle 5 includes a holding rod 51 and a connecting rod 52 perpendicular to each other, and the connecting rod 52 is connected to the other end of the first holding portion 11. Through the other end at first portion 11 of holding setting up handle 5, connecting rod 52 is connected with the first other end of holding 11, has increased the first moment of holding 11 and the second portion 21 of holding that holds that promotes of staff, and the staff can be through holding the pole 51 or directly promoting the connecting rod 52 and coming the drive of relaxing more and be tight packing box rotation by packing assembly and disassembly tools, reduces staff's intensity of labour, further improves packing box's change efficiency.

Fig. 3 is a partial structure sectional view of a packing box assembling and disassembling tool provided by an embodiment of the present invention. As shown in fig. 3, the other end of the first grip 11 has a counterbore 111, and the link 52 is located in the counterbore 111. The staff can adjust the degree of depth that connecting rod 52 inserted in counter bore 111, and then adjusts the overall length of first portion 11 and the connecting rod 52 of holding, and the staff of being convenient for adjusts according to the operational environment and the space of difference, avoids meetting the condition that operating space is not enough to take place to interfere with other pipelines when changing the packing box, has improved packing box assembly and disassembly tools's commonality.

Optionally, the first holding portion 11 and the second holding portion 21 are correspondingly provided with a first threaded hole 112 and a second threaded hole 211, the connecting rod 52 is provided with a limiting hole 521, and the second holding portion 21, the first holding portion 11 and the connecting rod 52 are fixedly connected through the locking bolt 3 located in the first threaded hole 112 and the limiting hole 521. The first holding part 11 and the second holding part 21 are fixedly connected by screwing the locking bolt 3 into the corresponding second screw hole 211 and the first screw hole 112. Meanwhile, the locking bolt 3 can be continuously screwed into the limiting hole 521 on the connecting rod 52, so that the connecting rod 52 is limited and fixed. The process of redesigning the limiting structure for the slidable connecting rod 52 is omitted, the structure is simple, the processing is convenient, and the manufacturing cost of the packing box disassembling tool is reduced.

Optionally, the rod body of the connecting rod 52 has a plurality of limiting holes 521 arranged at intervals along the axial direction of the rod body. Through set up the spacing hole 521 that corresponds with first screw hole 112 of a plurality of interval arrangements on the body of rod of connecting rod 52, the staff can be according to the length of operational environment adjustment connecting rod 52, aligns the spacing hole 521 that will correspond with first screw hole 112, presss from both sides tightly the packing box again, and is fixed the spacing of connecting rod 52 to the realization through screwing up locking bolt 3. When the length of the connecting rod 52 needs to be adjusted, the connecting rod 52 can be lengthened or shortened only by loosening the locking bolt 3, and the locking bolt 3 is screwed again after the adjustment is finished. The packing box replacing device is simple to operate, and the replacing efficiency of the packing box is further improved.

Optionally, referring to fig. 1, the joint of the first grip 11 and the first snap ring 12 has a rib 13. Because the other end of the first portion of holding 11 is connected with handle 5, when the staff drives the packing box that is pressed from both sides tightly by the packing assembly and disassembly tools through holding and promoting handle 5 and rotate, the stress is very big for the junction of the first portion of holding 11 and first snap ring 12 receives the transmission by connecting rod 52 of handle 5, and the too big condition of breaking takes place for the atress appears easily in the junction of the first portion of holding 11 and first snap ring 12. Set up strengthening rib 13 through going out at first portion 1 of holding and first snap ring 12, can increase the mechanical strength of this junction, prevent the fracture, improved packing box assembly and disassembly tools's structural stability, further increased packing box assembly and disassembly tools's life.

Optionally, the first body 1 and the second body 2 are steel structural members or cast iron structural members. The steel has high mechanical strength and toughness, and has heat resistance, corrosion resistance and other properties, while cast iron has better casting performance, easier processing and forming and lower cost compared with steel. The embodiment of the utility model provides an among the disclosed packing box assembly and disassembly tools, first main part 1 and second main part 2 both can be steel structure spare, also can be for the cast iron structure spare, as long as enable its mechanical strength enough support drive the tight packing box rotation of clamp can, the utility model discloses do not limit to this.

Illustratively, the first snap ring 12 and the second snap ring 22 have an inner diameter matching the outer diameter of the packing box, which may be 120mm, for example. The embodiment of the utility model discloses packing box assembly and disassembly tools mainly corresponds the dismantlement and the installation of the packing box in the plunger pump packing assembly that the external diameter is 120 mm. In other possible implementation manners, the packing box dismounting tool with the same structure can also be used for dismounting and mounting other packing boxes with different outer diameters, and only the inner diameter sizes of the semicircular arcs of the first open ring 12 and the second snap ring 22 need to be correspondingly adjusted, so that the disclosure does not limit the packing boxes.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. The utility model provides a packing box assembly and disassembly tools which characterized in that includes:

the packing box comprises a first main body (1), wherein the first main body (1) comprises a first holding part (11) and a first clamping ring (12), the first clamping ring (12) is in a semi-circular arc shape, one end of the first clamping ring (12) in the arc direction of the semi-circular arc shape is fixedly connected with the first holding part (11), and the first clamping ring (12) is provided with a first side surface (121) used for clamping the packing box;

the packing box comprises a second main body (2), the second main body (2) comprises a second holding part (21) and a second clamping ring (22), the second clamping ring (22) is in a semi-arc shape, one end of the second clamping ring (22) in the arc direction of the semi-arc shape is fixedly connected with the second holding part (21), the other end of the second clamping ring (22) in the arc direction of the semi-arc shape is hinged with the other end of the first clamping ring (12) in the arc direction of the semi-arc shape, and the second clamping ring (22) is provided with a second side face (221) used for clamping the packing box;

the first body (1) and the second body (2) are configured such that the first snap ring (12) and the second snap ring (22) form a circular ring structure when the first grip portion (11) and the second grip portion (21) are fixedly connected.

2. The packing box removal tool according to claim 1, further comprising a plurality of cushions (4), the plurality of cushions (4) being located on the first side (121) and the second side (221), respectively.

3. The packing box disassembling tool according to claim 2, characterized in that the first side surface (121) has a first mounting groove (1211) recessed inward, the first mounting groove (1211) extending in a length direction of the first snap ring (12); the second side surface (221) has a second mounting groove (2211) recessed inward, the second mounting groove (2211) extends in a length direction of the second snap ring (22), and the cushion pads (4) are respectively located in the first mounting groove (1211) and the second mounting groove (2211).

4. The packing box removal tool according to claim 2, wherein the cushion pad (4) is a rubber pad.

5. The packing box dismounting tool according to claim 1, further comprising a handle (5), wherein the handle (5) includes a holding rod (51) and a connecting rod (52) perpendicular to each other, and the connecting rod (52) is connected to the other end of the first holding portion (11).

6. The packing box disassembling tool according to claim 5, characterized in that the other end of the first holding portion (11) has a counterbore (111), and the connecting rod (52) is located in the counterbore (111).

7. The packing box assembling and disassembling tool according to claim 6, characterized in that the first holding portion (11) and the second holding portion (21) are correspondingly provided with a first threaded hole (112) and a second threaded hole (211), the connecting rod (52) is provided with a limiting hole (521), and the second holding portion (21), the first holding portion (11) and the connecting rod (52) are fixedly connected through a locking bolt (3) located in the first threaded hole (112) and the limiting hole (521).

8. The packing box assembling and disassembling tool according to claim 7, characterized in that the rod body of the connecting rod (52) is provided with a plurality of limiting holes (521) which are arranged at intervals along the axial direction of the rod body of the connecting rod (52).

9. The packing box assembling and disassembling tool according to any one of claims 1 to 8, characterized in that a joint of the first holding portion (11) and the first snap ring (12) has a reinforcing rib (13).

10. The packing box assembly and disassembly tool of any one of claims 1 to 8, wherein the first body (1) and the second body (2) are steel or cast iron structural members.