Transferring clamping jaw for producing sliding sleeve barrel pipe

Abstract

The utility model discloses a sliding sleeve cylinder pipe production transfer clamping jaw which comprises an air cylinder seat, a telescopic air cylinder, a lead screw, a first clamping plate, a clamping jaw body, connecting plates, a guide rod, a spring, a transmission sleeve and an expansion sleeve, a cylinder body of the telescopic air cylinder is fixedly installed on the air cylinder seat, and the two connecting plates are symmetrically and fixedly installed on the air cylinder seat; the four guide rods are distributed in a rectangular shape, the two ends of each guide rod are fixedly installed on the connecting plate, and the two first clamping plates are slidably installed on the guide rods. According to the clamping jaw, opening and closing control over the clamping jaw can be achieved through cooperation of the single telescopic air cylinder, the expansion sleeve and the spring, compared with a traditional shear fork type clamping jaw, the clamping jaw clamps and fixes a production sliding sleeve cylinder pipe through the clamping groove of the clamping jaw, the clamping jaw has the advantages of being high in clamping and fixing firmness and more reliable to use, and the situation that when the transferring speed of a transferring driving mechanism is high, the clamping jaw is not damaged is avoided. And the problem that sliding sleeve cylinder pipes fall off during production can be solved, and the overall production efficiency can be improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of well completion tool production, in particular to a production and transfer clamping claw for producing a sliding sleeve body pipe. Background Art

[0002] At present, in order to realize the production and testing of different oil layers, the production sleeve needs to be applied to provide a liquid flow channel between the oil pipe and the annulus. The production sleeve is opened by multiple gravity hammering and shifting of the shifting tool. The shifting tool is turned 180°, and the upward traction force is applied to the shifting station by the winch to achieve the upward shifting and closing of the production sleeve. The production sleeve barrel pipe is processed and transferred using a mechanical arm clamp. The scissor-type mechanical arm clamp can lift the pipe fork and transfer it. There is a problem of poor stability in the process of fast material transfer, which affects the overall production efficiency. Summary of the invention

[0003] The technical problem to be solved by the utility model is to provide a production sliding sleeve body pipe production transfer clamping jaw with high clamping jaw transfer stability.

[0004] In order to solve the above technical problems, the present invention is achieved through the following technical solutions: a production sliding sleeve body pipe production transfer clamp, comprising a cylinder seat, a telescopic cylinder, a screw rod, a first clamping plate, a clamping jaw, a connecting plate, a guide rod, a spring, a transmission sleeve and an expansion sleeve, the cylinder body of the telescopic cylinder is fixedly mounted on the cylinder seat, the two connecting plates are symmetrically and fixedly mounted on the cylinder seat, the four guide rods are rectangularly distributed and their two ends are fixedly mounted on the connecting plate, the two first clamping plates are slidably mounted on the guide rods, the spring is sleeved on the guide rods, the two ends of the spring act on the connecting plate and the first clamping plate respectively, the two guide rods at the same horizontal height are fixedly mounted with a bearing plate, a ball bearing is fixedly mounted in the bearing plate, the transmission sleeve is fixedly mounted in the rotating body of the ball bearing, the expansion sleeve is fixedly sleeved on the transmission sleeve, the screw rod is fixedly mounted on the piston rod of the telescopic cylinder, the screw rod is threadedly connected to the transmission sleeve, the two clamping jaws are respectively fixedly mounted on the bottom of the two first clamping plates, and the corresponding clamping surfaces of the two clamping jaws are provided with clamping grooves with triangular cross-sections.

[0005] Preferably, a groove is provided on the inner side surface of the first clamping plate, and a replaceable pad is screwed and fixedly installed in the groove.

[0006] Preferably, a correction pin hole is provided on the inner side surface of one of the clamping jaws, and a correction pin is fixedly mounted on the inner side surface of the other clamping jaw, and the correction pin can be slidably mounted in the correction pin hole.

[0007] Preferably, the outer end of the correction pin is configured as a spherical structure.

[0008] Compared with the prior art, the advantages of the utility model are: the clamp can realize the opening and closing control of the clamp through the cooperation of a single telescopic cylinder, an expansion sleeve and a spring. Compared with the traditional scissor-type clamp, the clamp clamps the production sliding sleeve body pipe through its clamping groove, and has the advantages of high clamping firmness and more reliable use. It can avoid the problem of production sliding sleeve body pipe falling when the transfer drive mechanism is at a fast transfer speed, and can improve the overall production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] The utility model is further described below in conjunction with the accompanying drawings.

[0010] Figure 1 It is a structural schematic diagram of the utility model.

[0011] Figure 2 yes Figure 1 Enlarged structural diagram at M.

[0012] Figure 3 It is a schematic diagram of the structure of the expansion sleeve. DETAILED DESCRIPTION

[0013] The utility model is described in detail below in conjunction with specific implementation methods:

[0014] like Figures 1 to 3 The present invention shows a production sliding sleeve body pipe production transfer clamp, comprising a cylinder seat 1, a telescopic cylinder 2, a screw rod 22, a first clamping plate 3, a clamping jaw 31, a connecting plate 5, a guide rod 6, a spring 61, a transmission sleeve 7 and an expansion sleeve 71. The cylinder body of the telescopic cylinder 2 is fixedly mounted on the cylinder seat 1, two connecting plates 5 are symmetrically and fixedly mounted on the cylinder seat 1, four guide rods 6 are distributed in a rectangular shape and their two ends are fixedly mounted on the connecting plate 5, two first clamping plates 3 are slidably mounted on the guide rod 6, the spring 61 is sleeved and mounted on the guide rod 6, and the two ends of the spring 61 act on the connecting plate 5 and the first clamping plate respectively. 3, a bearing plate is fixedly installed on two guide rods 6 at the same horizontal height, a ball bearing is fixedly installed in the bearing plate, a retainer of the ball bearing is fixedly installed on the bearing plate, the transmission sleeve 7 is fixedly installed in the rotating body of the ball bearing, the expansion sleeve 71 is fixedly sleeved and installed on the transmission sleeve 7, the screw rod 22 is fixedly installed on the piston rod of the telescopic cylinder 2, the screw rod 22 is threadedly connected with the transmission sleeve 7, two clamping jaws 31 are respectively fixedly installed on the bottom of the two first clamping plates 3, and the corresponding clamping surfaces of the two clamping jaws 31 are provided with clamping grooves 32 with triangular cross-sections.

[0015] A groove is provided on the inner side surface of the first clamping plate 3, and a replaceable pad 30 is screwed and fixedly installed in the groove. After the expansion sleeve 71 contacts with the replaceable pad 30 and causes wear to it, the replaceable pad 30 can be removed separately and replaced, which has the advantage of easy maintenance.

[0016] A correction pin hole is provided on the inner side surface of one of the clamping jaws 31, and a correction pin is fixedly installed on the inner side surface of the other clamping jaw 31. The correction pin can be slidably installed in the correction pin hole. When the correction pin cannot be embedded in the correction pin hole, there is a position offset between the mutually cooperating clamping jaws 31 or the first clamping plate 3, which affects the clamping of the cylindrical tube by the two clamping grooves 32. The outer end of the correction pin is set to a spherical structure so that the correction pin can be easily embedded in the correction pin hole. When the position offset between the mutually cooperating clamping jaws 31 or the first clamping plate 3 is not large, the correction pin can be prevented from colliding with the inner side surface of the other clamping jaw 31.

[0017] When the production sliding sleeve body pipe 10 is clamped and transferred by the clamping jaws 31, the piston rod 21 of the telescopic cylinder 2 is started to extend and push the screw rod 22 to move downward. During the downward movement of the screw rod 22, the combination of the transmission sleeve 7 and the expansion sleeve 71 is driven to rotate. After the expansion sleeve 71 contacts the inner side surface of the first clamping plate 3, the first clamping plate 3 is pushed to overcome the elastic force of the spring 61 and move outward. At this time, the first clamping plate 3 drives the clamping jaws 31 to open, and the cylinder seat 1 is controlled to move downward by the driving mechanism so that the clamping jaws 31 are located on both sides of the production sliding sleeve body pipe 10 to be clamped and transferred. The piston rod 21 of the telescopic cylinder 2 retracts and pushes the screw rod 22 to move upward. The screw rod 22 drives the combination of the transmission sleeve 7 and the expansion sleeve 71 to rotate in the opposite direction until the expansion sleeve 71 is separated from the inner side surface of the first clamping plate 3. Under the action of the elastic force of the spring 61, the combination of the first clamping plate 3 and the clamping jaws 31 is pushed inward, and the production sliding sleeve body pipe 10 is clamped and transferred through the clamping groove 32 of the clamping jaws 31.

Claims

1. A transfer clamp for producing a sliding sleeve body pipe, characterized in that: The invention comprises a cylinder seat (1), a telescopic cylinder (2), a screw rod (22), a first clamping plate (3), a clamping claw (31), a connecting plate (5), a guide rod (6), a spring (61), a transmission sleeve (7) and an expansion sleeve (71), wherein the cylinder body of the telescopic cylinder (2) is fixedly mounted on the cylinder seat (1), the two connecting plates (5) are symmetrically and fixedly mounted on the cylinder seat (1), the four guide rods (6) are distributed in a rectangular shape and their two ends are fixedly mounted on the connecting plate (5), the two first clamping plates (3) are slidably mounted on the guide rods (6), the spring (61) is sleeved and mounted on the guide rods (6), and the two ends of the spring (61) act on the connecting rods (6) respectively. The invention relates to a first clamping plate (5), a first clamping plate (3), and two guide rods (6) at the same horizontal height. A bearing plate is fixedly installed on the bearing plate. A ball bearing is fixedly installed in the bearing plate. The transmission sleeve (7) is fixedly installed in the rotating body of the ball bearing. The expansion sleeve (71) is fixedly sleeved and installed on the transmission sleeve (7). The screw rod (22) is fixedly installed on the piston rod of the telescopic cylinder (2). The screw rod (22) is threadedly connected to the transmission sleeve (7). Two clamping claws (31) are respectively fixedly installed on the bottom of the two first clamping plates (3). The corresponding clamping surfaces of the two clamping claws (31) are provided with clamping grooves (32) with a triangular cross section.

2. The production transfer clamp for producing sliding sleeve body pipes according to claim 1, characterized in that: A groove is provided on the inner side surface of the first clamping plate (3), and a replaceable cushion block (30) is screwed and fixedly installed in the groove.

3. The production transfer clamp for producing sliding sleeve body pipes according to claim 1, characterized in that: A correction pin hole is provided on the inner side surface of one of the clamping jaws (31), and a correction pin is fixedly mounted on the inner side surface of the other clamping jaw (31), wherein the correction pin can be slidably mounted in the correction pin hole.

4. The production transfer clamp for producing sliding sleeve body pipes according to claim 3 is characterized in that: The outer end of the correction pin is configured as a spherical structure.

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