Telescopic sleeve device for large crane pipe

Abstract

The utility model relates to a telescopic sleeve device for a large crane pipe. The telescopic sleeve device comprises a telescopic assembly arranged between a horizontal pipe opening of a three-way pipe and a fixed connecting pipe. According to the device, the sealing assembly is arranged at the overlapped opening position of the outer sleeve and the inner sleeve, so that leakage is avoided in the relative sliding process of the inner sleeve and the outer sleeve, and the good sealing performance is guaranteed. The walking assembly is arranged above the telescopic assembly, the anti-explosion control system controls the anti-explosion hydraulic system to drive the hydraulic oil cylinder to reciprocate so as to drive the walking assembly to move, the telescopic assembly and the walking assembly are matched to drive the outer sleeve and the inner sleeve to generate stable and constant-speed relative telescopic movement, telescopic is stable and reliable, and the service life is long. Guide assemblies arranged on the two sides of the telescopic assembly further guide relative movement of the outer sleeve and the inner sleeve, and the guide disc drives the positioning sliding sleeve to synchronously move along the guide rod. And the sliding motion is smoother and more efficient, and real-time stretching is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of fluid loading and unloading equipment in the petroleum and petrochemical industry, in particular to a telescopic sleeve device for a large crane pipe. Background Art

[0002] At present, metal hoses are used to connect the three-way components of the Dahe pipe and the fixed pipes on site. The following disadvantages exist in the use of metal hoses: Poor corrosion resistance: metal hoses are easily corroded by chemicals such as acids and alkalis during long-term use, resulting in dirt and corrosive substances inside the hoses, affecting the sealing effect, shortening the service life, reducing the efficiency of loading and unloading, and may cause equipment failure. Poor fatigue resistance: metal hoses are prone to fatigue damage during long-term use due to repeated bending and twisting, which can lead to leakage or rupture of the hoses. The flexibility of metal hoses is limited, and they will deform or rupture under temperature changes or mechanical shocks. High maintenance cost: metal hoses need regular inspection and maintenance, such as cleaning, replacement, and repairing. These tasks require specialized technicians to operate, which increases the maintenance cost of the enterprise. Safety issues: Since the metal hose connection is easy to loosen, it may cause safety issues such as leakage or spraying, posing potential risks to personal safety. Restricted flow: The inner diameter of the metal hose is limited, which will impose certain restrictions on the flow, thereby affecting the efficiency of loading and unloading. Utility Model Content

[0003] The utility model aims to provide a telescopic sleeve device for a large crane pipe to solve the problems raised in the above background technology. In the utility model, both the inner sleeve and the outer sleeve are hard-connected, and multiple seals are used between the inner and outer sleeves to achieve better sealing effect, improve the safety performance of the pipeline system, and reduce the maintenance cost.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a telescopic sleeve device for a large crane pipe, comprising a telescopic assembly arranged between the horizontal pipe opening of the tee pipe and the fixed pipe connection, the telescopic assembly comprising an outer sleeve and an inner sleeve that telescope and cooperate with each other, and a sealing assembly is provided at the overlapping position of the outer sleeve and the inner sleeve; the sealing assembly prevents leakage during the relative sliding of the inner sleeve and the outer sleeve, has a good dynamic sealing effect, improves the safety performance of the pipeline system, and reduces maintenance costs.

[0005] A walking assembly is provided above the telescopic assembly, and a hydraulic control assembly for driving the walking assembly to reciprocate is connected to the walking assembly. The walking assembly includes a walking track arranged parallel to the outer casing, and a walking trolley and a hydraulic cylinder for driving the walking trolley to move are provided on the walking track. A connecting pillar is provided at the bottom of the walking trolley, and the walking trolley is connected to the upper pipe mouth of the tee pipe through the connecting pillar. A connecting piece is provided at the lower part of the walking trolley, and the walking trolley is fixedly connected to the pipe wall of the outer casing through the connecting piece; the telescopic assembly and the walking assembly cooperate to drive the outer casing and the inner casing to produce a stable and uniform relative telescopic movement, and the telescopic movement is stable and reliable, and the service life is long.

[0006] Guide components for guiding the inner sleeve and the outer sleeve to move relative to each other in the axial direction are arranged on both sides of the telescopic component along the axis. The guide components further guide the relative movement of the outer sleeve and the inner sleeve, making the sliding movement smoother.

[0007] As a further solution of the utility model, the guide assembly includes two guide rods symmetrically arranged along the axis direction of the outer sleeve, and an outer sleeve support member and an inner sleeve support member are respectively provided at both ends of each guide rod, and the outer sleeve support member includes a first ear plate and a first support seat hinged to the first ear plate, the first ear plate is fixedly connected to the outer wall of the outer sleeve, and a first support rod is provided on the first support seat, and the first support seat is connected to the walking trolley through the first support rod;

[0008] The inner sleeve support comprises a second ear plate and a second support seat hinged to the second ear plate, a second support rod is arranged on the second support seat, the second ear plate is fixedly connected to the outer wall of the inner sleeve, and the second support seat is connected to the walking track through the second support rod.

[0009] As a further solution of the utility model, a positioning sleeve is provided between the fixed pipe opening and the inner sleeve pipe opening, and connecting flanges are provided at both ends of the fixed pipe opening, the inner sleeve pipe opening and the positioning sleeve. The fixed pipe opening, the inner sleeve pipe opening and the positioning sleeve are connected to each other through connecting flanges, and the second ear plate is arranged on the outer walls on both sides of the positioning sleeve.

[0010] As a further solution of the utility model, the sealing assembly includes a packing sleeve sleeved on the inner sleeve, the packing sleeve includes a fixing portion and a packing portion, a packing cavity with an opening at one end is formed between the packing portion of the packing sleeve and the outer wall of the inner sleeve, a packing seat and a sealing packing are arranged in the packing cavity, and a packing gland matched with the packing sleeve is arranged at the opening of the packing cavity;

[0011] A first sealing flange is provided at the fixing part of the packing sleeve, a second sealing flange is provided at the outer sleeve pipe opening near one end of the fixing part of the packing sleeve, a guide plate is provided between the second sealing flange and the first sealing flange, and the first sealing flange and the second sealing flange are fastened by bolts and nuts.

[0012] As a further solution of the utility model, the outer ring of the guide plate extends outward and is provided with a guide hole through which the guide rod passes. A positioning sleeve is provided in the guide hole and is slidably arranged along the guide rod. Positioning holes are correspondingly provided on the positioning sleeve and the guide plate, and screws are passed through the positioning holes for fastening and fixing.

[0013] As a further solution of the utility model, the hydraulic control assembly includes an explosion-proof control system and an explosion-proof hydraulic system, the explosion-proof control system and the explosion-proof hydraulic system are connected in communication, and the explosion-proof hydraulic system and the hydraulic cylinder are connected through a hydraulic pipeline. The explosion-proof control system controls the explosion-proof hydraulic system to drive the reciprocating motion of the hydraulic cylinder, with precise control and stable thrust.

[0014] As a further solution of the utility model, a set of matching flanges is provided between the horizontal pipe opening of the tee pipe and the corresponding pipe opening of the outer sleeve, and the tee pipe and the outer sleeve are connected via the matching flanges.

[0015] Compared with the prior art, the utility model has the beneficial effect that: the device is provided with a sealing assembly at the overlapping position of the outer sleeve and the inner sleeve, so that the inner sleeve and the outer sleeve will not leak during the relative sliding process, thereby ensuring good sealing performance.

[0016] There is a walking assembly above the telescopic assembly. The explosion-proof control system controls the explosion-proof hydraulic system to drive the reciprocating motion of the hydraulic cylinder, thereby driving the walking assembly to move.

[0017] The telescopic assembly and the traveling assembly cooperate to drive the outer sleeve and the inner sleeve to produce a stable and uniform relative telescopic movement. The telescopic movement is stable and reliable and has a long service life.

[0018] The guide components arranged on both sides of the telescopic component further guide the relative movement of the outer sleeve and the inner sleeve, and the guide plate drives the positioning sleeve to move synchronously along the guide rod, making the sliding movement smoother and more efficient, and achieving telescopic movement in real time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is the front view of the utility model;

[0020] Figure 2 It is a schematic diagram of the utility model in the direction of AA;

[0021] Figure 3 This is a schematic diagram of node I of the utility model.

[0022] In the figure: 1-explosion-proof control system, 2-explosion-proof hydraulic system, 3-traveling trolley, 4-connecting piece, 5-hydraulic cylinder, 6-traveling track, 7-connecting pillar, 8-tee pipe, 801-matching flange, 9-first support rod, 901-second support rod, 10-outer sleeve, 11-guide rod, 12-inner sleeve, 13-positioning sleeve, 14-positioning sleeve, 15-fixed pipe, 16-first support seat, 161-second support seat, 17-first ear plate, 171-second ear plate, 18-packing sleeve, 19-packing seat, 20-sealing packing, 21-packing gland, 22-second sealing flange, 23-guide plate, 24-first sealing flange, 25-connecting flange. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Please see attached Figure 1 -Attached Figure 3 A telescopic sleeve device for a large crane pipe includes a telescopic component arranged between a horizontal pipe opening of a tee pipe 8 and a fixed pipe 15. The fixed pipe 15 is a field pipeline and is fixed and immovable.

[0025] The telescopic assembly includes an outer sleeve 10 and an inner sleeve 12 that are telescopically matched with each other. A set of matching flanges 801 are provided between the horizontal pipe opening of the tee and the corresponding pipe opening of the outer sleeve. The tee and the outer sleeve are connected through the matching flanges.

[0026] A sealing assembly is provided at the overlapping position of the outer sleeve and the inner sleeve; the sealing assembly includes a packing sleeve 18 sleeved on the inner sleeve, the packing sleeve includes a fixing portion and a packing portion, a packing cavity with an open end is formed between the packing portion of the packing sleeve and the outer wall of the inner sleeve, a packing seat 19 and a sealing packing 20 are provided in the packing cavity, and a packing gland 21 matched with the packing sleeve is provided at the opening of the packing cavity; when the outer sleeve moves along the inner sleeve, the sealing packing effectively prevents leakage of the medium in the gap between the outer sleeve and the inner sleeve.

[0027] The fixing part of the packing sleeve is provided with a first sealing flange 24, which is welded to the fixing part of the packing sleeve. A second sealing flange 22 is provided at the outer tube mouth near one end of the fixing part of the packing sleeve, which is welded to the outer tube mouth. A guide plate 23 is provided between the second sealing flange and the first sealing flange. The outer ring of the guide plate extends outward and is provided with a guide hole through which a guide rod passes. A positioning sleeve 13 is provided in the guide hole and is slidably arranged along the guide rod. Positioning holes are correspondingly provided on the positioning sleeve and the guide plate, and screws are inserted in the positioning holes for tightening and positioning. The first sealing flange and the second sealing flange are fastened by bolts and nuts.

[0028] A walking assembly is provided above the telescopic assembly, and a hydraulic control assembly for driving the walking assembly to reciprocate is connected to the walking assembly. The hydraulic control assembly includes an explosion-proof control system 1 and an explosion-proof hydraulic system 2. The explosion-proof control system and the explosion-proof hydraulic system are connected in communication, and the explosion-proof hydraulic system and the hydraulic cylinder are connected through a hydraulic pipeline.

[0029] The explosion-proof control system is started to control the explosion-proof hydraulic system to work. The explosion-proof hydraulic system provides hydraulic oil to the hydraulic cylinder 5 to drive the hydraulic cylinder to perform telescopic movement.

[0030] The walking assembly includes a walking track 6 arranged parallel to the outer sleeve, a walking trolley 3 and a hydraulic cylinder 5 for driving the walking trolley are arranged on the walking track, the hydraulic cylinder is started to perform telescopic movement, and drives the walking trolley to walk on the walking track, a connecting pillar 7 is arranged at the bottom of the walking trolley, the walking trolley is connected to the upper pipe opening of the tee pipe through the connecting pillar 7, a connecting piece 4 is arranged at the bottom of the walking trolley, and the walking trolley is fixedly connected to the pipe wall of the outer sleeve through the connecting piece; the connecting piece transfers the weight of the walking trolley to the outer sleeve, so that the tee pipe does not bear the weight of the walking trolley. The walking trolley moves on the walking guide rail 6, driving the outer sleeve to move relatively along the inner sleeve, and during the movement, the guide plate 23 drives the positioning sleeve to slide along the guide rod.

[0031] Guide components for guiding the inner sleeve 12 and the outer sleeve 10 to move relative to each other in the axial direction are arranged on both sides of the telescopic component along the axis.

[0032] The guide assembly includes two guide rods 11 symmetrically arranged along the axis direction of the outer sleeve, and an outer sleeve support member and an inner sleeve support member are respectively provided at both ends of each guide rod. The outer sleeve support member includes a first ear plate 17 and a first support seat 16 hinged to the first ear plate. The first ear plate is fixedly connected to the outer wall of the outer sleeve, and a first support rod 9 is provided on the first support seat. The first support seat is connected to the traveling trolley through the first support rod; the movement of the traveling trolley drives the first support rod to drive the outer sleeve to move, the first ear plate 17 slides along the guide rod 11, and the tee pipe slides synchronously with the outer sleeve. During the entire sliding process, the positioning sleeve slides along the guide rod.

[0033] The inner sleeve support comprises a second ear plate 171 and a second support seat 161 hinged to the second ear plate, a second support rod 901 is arranged on the second support seat, the second ear plate is fixedly connected to the outer wall of the inner sleeve, a positioning sleeve 14 is arranged between the fixed pipe mouth and the inner sleeve mouth, a connecting flange 25 is arranged at both ends of the fixed pipe mouth, the inner sleeve mouth and the positioning sleeve, and the fixed pipe mouth, the inner sleeve mouth and the positioning sleeve are connected to each other through the connecting flange, and the second ear plate is arranged on the outer walls on both sides of the positioning sleeve. The second support seat is connected to the walking track through the second support rod 901.

[0034] The positioning pipe is fixed vertically below the travel guide rail, and is laterally connected to the fixed pipe. The guide rod 11 and the second ear plate 171 are fixedly arranged without relative displacement. The positioning pipe plays a supporting and positioning role. The travel assembly and the guide assembly cooperate to drive the outer sleeve to move relative to the inner sleeve, and then the sealing assembly cooperates to seal, so that the horizontal crane pipe can change its length, and achieve better connection and medium transportation.

[0035] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is defined by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A telescopic sleeve device for a large crane pipe, characterized in that: It comprises a telescopic assembly arranged between the horizontal pipe opening of a tee pipe (8) and a fixed pipe (15), the telescopic assembly comprising an outer sleeve (10) and an inner sleeve (12) which are telescopically matched with each other, and a sealing assembly is provided at the overlapping position of the outer sleeve and the inner sleeve; A walking assembly is provided above the telescopic assembly, and a hydraulic control assembly is connected to the walking assembly to drive the walking assembly to reciprocate. The walking assembly includes a walking track (6) arranged parallel to the outer casing, and a walking trolley (3) and a hydraulic cylinder (5) driving the walking trolley to move are provided on the walking track. A connecting pillar (7) is provided at the bottom of the walking trolley, and the walking trolley is connected to the upper pipe opening of the three-way pipe through the connecting pillar. A connecting piece (4) is provided at the bottom of the walking trolley, and the walking trolley is fixedly connected to the pipe wall of the outer casing through the connecting piece. Guide components for guiding the inner sleeve and the outer sleeve to move relative to each other along the axial direction are arranged on both sides of the telescopic component.

2. The telescopic sleeve device for large crane pipe according to claim 1, characterized in that: The guide assembly comprises two guide rods (11) symmetrically arranged along the axis direction of the outer sleeve, each guide rod is provided with an outer sleeve support member and an inner sleeve support member at both ends, the outer sleeve support member comprises a first ear plate (17) and a first support seat (16) hinged to the first ear plate, the first ear plate is fixedly connected to the outer wall of the outer sleeve, a first support rod (9) is provided on the first support seat, and the first support seat is connected to the walking trolley (3) via the first support rod; The inner sleeve support comprises a second ear plate (171) and a second support seat (161) hinged to the second ear plate, a second support rod (901) is provided on the second support seat, the second ear plate is fixedly connected to the outer wall of the inner sleeve, and the second support seat is connected to the walking track via the second support rod.

3. The telescopic sleeve device for large crane pipe according to claim 2, characterized in that: A positioning sleeve (14) is provided between the pipe opening of the fixed pipe connection and the pipe opening of the inner sleeve, and connecting flanges (25) are provided at the pipe opening of the fixed pipe connection, the pipe opening of the inner sleeve, and both ends of the positioning sleeve. The pipe opening of the fixed pipe connection, the pipe opening of the inner sleeve, and the positioning sleeve are connected to each other via the connecting flanges, and the second ear plates (171) are provided on the outer walls of both sides of the positioning sleeve (14).

4. The telescopic sleeve device for large crane pipe according to claim 1, characterized in that: The sealing assembly comprises a packing sleeve (18) sleeved on the inner sleeve, the packing sleeve comprising a fixing portion and a packing portion, a packing cavity with an open end formed between the packing portion of the packing sleeve and the outer wall of the inner sleeve, a packing seat (19) and a sealing packing (20) are arranged in the packing cavity, and a packing gland (21) matched with the packing sleeve is arranged at the opening of the packing cavity; A first sealing flange (24) is provided at the fixing part of the packing sleeve, a second sealing flange (22) is provided at the outer sleeve pipe opening close to one end of the fixing part of the packing sleeve, a guide plate (23) is provided between the second sealing flange and the first sealing flange, and the first sealing flange and the second sealing flange are fastened by bolts and nuts.

5. The telescopic sleeve device for large crane pipe according to claim 4, characterized in that: The outer ring of the guide plate (23) extends outward and is provided with a guide hole through which the guide rod passes. A positioning sleeve (13) is provided in the guide hole and is slidably arranged along the guide rod. Positioning holes are correspondingly provided on the positioning sleeve and the guide plate. Screws are inserted into the positioning holes for tightening and positioning.

6. The telescopic sleeve device for large crane pipe according to claim 1, characterized in that: The hydraulic control component comprises an explosion-proof control system (1) and an explosion-proof hydraulic system (2), the explosion-proof control system and the explosion-proof hydraulic system are communicatively connected, and the explosion-proof hydraulic system and the hydraulic cylinder are connected via a hydraulic pipeline.

7. The telescopic sleeve device for a large crane pipe according to claim 1, characterized in that: A set of matching flanges (801) are provided between the horizontal pipe opening of the tee pipe and the corresponding pipe opening of the outer casing, and the tee pipe and the outer casing are connected via the matching flanges.

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