CN216657642U

CN216657642U - Pipe clamp

Info

Publication number: CN216657642U
Application number: CN202122113317.4U
Authority: CN
Inventors: 张振鹏; 王璞; 陈仕先
Original assignee: Changchun Liansu Industrial Co ltd
Current assignee: Changchun Liansu Industrial Co ltd
Priority date: 2021-09-02
Filing date: 2021-09-02
Publication date: 2022-06-03
Anticipated expiration: 2031-09-02

Abstract

The utility model relates to the technical field of pipe clamping auxiliary devices, and provides a pipe clamping device which comprises a main body used for wrapping the periphery of a pipe to be clamped, a plurality of clamping pieces movably connected to the main body and used for clamping the outer side wall of the pipe at the same time, a driving device arranged on the main body and used for driving the clamping pieces to move along the axis of the driving device, and a transmission mechanism arranged on the main body, wherein the transmission mechanism comprises a first gear piece connected with the driving device and a second gear piece which is meshed with the first gear piece and used for converting the rotary motion of the first gear piece into the linear motion of the clamping pieces. The utility model solves the problems of complex structure and poor use stability when the traditional pipe clamping piece is clamped by adopting gear transmission, and the transmission process of the utility model has ingenious structural design and is stable and reliable in the clamping process.

Description

Pipe clamp

Technical Field

The utility model relates to the technical field of pipe clamping auxiliary devices, in particular to a pipe clamping device.

Background

At present, plastics tubular product's application is more and more extensive, at tubular product production, processing, detect also or the in-process that uses, plastics tubular product all can meet the demand that needs press from both sides tightly and fix a position, can press from both sides the tight simple clamping tool that mostly all is of plastics tubular product now, still need adjust through the manual work to clamping tool and realize pressing from both sides tightly, can not the synchronous linkage, the accommodation process is very consumeed manpower and time, and clamping strength needs artificial control when the centre gripping, can't guarantee to the quick accurate clamp of plastics tubular product, still hinder the pipe easily.

To the fixed demand of self-holding of tubular product, chinese patent document with publication number CN201921271260.7 discloses a tubular product clamping device for use in PVC tubular product production line, through the design of first drive gear, second drive gear, transmission ring gear, transmission gear and spacing spout, make the device pass through the drive of driving motor when the centre gripping, make six actuating levers linkage in step, then carry out the rapid clamping to the PVC pipe in step, and can carry out the centre gripping to the PVC pipe of multiple pipe diameter during the centre gripping, simultaneously through pressure sensor's collocation design, make the clamping-force of this anchor clamps controllable, then help improving the centre gripping effect, reduce the spoilage of PVC pipe in the clamping process.

However, the plurality of gear sets are adopted for transmission, the driving rod is finally controlled to slide downwards and clamp tightly through three-stage gear transmission, accurate clamping of the clamping pipe can be guaranteed only through accurate matching between every two stages of gear transmission, three stages of transmission gears are quite complex in layer-by-layer meshing, serious abrasion and time failure easily occur in the gear transmission with large clamping resistance, and if the gear transmission is in failure, the maintenance cost is quite high.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems of complex structure and poor use stability of the existing pipe clamping piece when the pipe clamping piece is clamped by gear transmission, and provides a pipe clamping device. The utility model has the advantages of ingenious structural design in the transmission process and stability and reliability in the clamping process.

In order to solve the technical problems, the utility model adopts the technical scheme that:

the utility model provides a pipe clamp, including being used for wrapping up and waiting to press from both sides the peripherical main part of tight tubular product, swing joint just is used for simultaneously pressing from both sides a plurality of clamping pieces of tight tubular product lateral wall in the main part, locate the drive arrangement who is used for driving the clamping piece along its self axis motion on the main part, and locate the drive mechanism on the main part, drive mechanism includes the first gear spare of being connected with drive arrangement, and with the meshing of first gear spare and with the second gear spare of the rotary motion conversion of first gear spare the rectilinear motion of clamping piece.

Like this, it is rotatory to drive first gear spare through drive arrangement, and first gear spare drives the rotation of second gear spare, and a plurality of clamping pieces are connected to the second gear spare to convert rotary motion into the rectilinear motion of clamping piece, drive the clamping piece and be close to the lateral wall of the tight tubular product of clamp of treating in the middle of the main part, thereby compress tightly tubular product, realize pressing from both sides tight purpose.

Further, the main part is hollow cylinder, and the interior circle internal diameter of main part is greater than the external diameter of treating the tight tubular product of clamp, has seted up circular hole groove on the circumference lateral wall of main part, has seted up the ring channel on the main part side end face lateral wall towards the clamping piece, circular hole groove and ring channel intercommunication, and first gear spare is located in the circular hole groove, and second gear spare is located in the ring channel.

Furthermore, the first gear piece is a small bevel gear, the second gear piece is a large bevel gear, peripheral bevel teeth are arranged on the circumferential side wall of the large bevel gear, one end of the small bevel gear is connected with the driving device, and the other end of the small bevel gear is meshed with the peripheral bevel teeth of the large bevel gear.

Like this, drive arrangement opens for the bevel pinion that is located the circular hole groove of main part lateral wall rotates, bevel pinion and big bevel gear intermeshing, and big bevel gear becomes the coaxial rotation of self and main part with bevel pinion's longitudinal rotation, and the tight operation of clamp piece is realized with the clamping piece cooperation through big bevel pinion's rotation self, and the compactness of structure, design benefit can be fine realizes the transmission.

Further, the main part still includes one end and main part fixed connection's fixed pressure disk, has seted up a plurality of spacing spouts on the fixed pressure disk, and the clamping piece is including inlaying a plurality of movable blocks of locating in every spacing spout, has seted up first screw thread on the terminal surface of a plurality of movable blocks orientation big bevel gear one side, and big bevel gear offers the second screw thread that meshes with first screw thread mutually on the terminal surface of one side of movable block orientation.

Furthermore, the clamping piece also comprises a clamping block fixed on one side of each movable block, which faces away from the fixed pressure plate.

It should be noted that the shape of the limiting sliding groove is not strictly limited, as long as the moving direction of the clamping member can be ensured to be perpendicular to the outer side wall of the pipe to be clamped for reciprocating motion, and the specific form adopted by the shape of the limiting sliding groove does not affect the achievement of the purpose of the utility model. Like this, be different from prior art adoption multistage gear drive's mode, this scheme is fixed second gear spare between fixed pressure disk and main part through fixed pressure disk, difficult displacement and not hard up take place, the steadiness of structure has been strengthened, simultaneously through the rotation of big bevel gear, the meshing of the second screw thread through big bevel gear lateral wall terminal surface and the first screw thread of movable block, the movable block is under big bevel gear's rotation, the passive line along the second screw thread removes, because the restriction of spacing spout on the fixed pressure disk, the movable block can only remove in spacing spout, the tight piece of clamp fixed on the movable block also moves thereupon, the clamp of tubular product has been realized, the inseparable interlock of first screw thread and second screw thread can bear great rotation moment of torsion, the tooth of the gear of taking off or the phenomenon of sliding tooth are difficult to appear, the reliability is stronger.

In addition, during installation, the movable blocks need to be placed one by one according to the sequence of the thread meshing rotation positions, and the moving positions of each movable block, which face/back to the pipe to be clamped, are kept consistent when the large bevel gear rotates.

Furthermore, each clamping block is also provided with a pressure sensor for detecting the clamping pressure of the pipe to be clamped.

Furthermore, the pressure sensor is a contact sensor, the pressure sensor is inserted into the clamping piece, and the stress end of the pressure sensor is in contact with the outer side wall of the pipe to be clamped when the pipe is clamped.

Further, the driving device comprises an oil pump connected with the first gear piece and a controller connected with the oil pump, and the controller is connected with the pressure sensor.

Therefore, after the pressure sensor contacts the pipe to be clamped, pressure data are collected and fed back to the controller, the controller sends an instruction to control the oil pump to stop or continue to apply pressure by analyzing the pressure data until the pressure reaches a preset pressure value, and the oil pump is stopped. Through the intelligent control of pressure sensor, oil pump and controller, can realize accurate exerting pressure, reduce and exert pressure too big damage tubular product or exert pressure the undersize and compress tightly the poor problem of effect, realize the quick clamp of high accuracy and relax tubular product.

Furthermore, the end face of one end, which is contacted with the pipe to be clamped, of each clamping block is arc-shaped. Therefore, the arc-shaped contact end can not damage the pipe and protect the pressed surface of the pipe.

Furthermore, the number of the clamping blocks, the limiting sliding grooves and the movable blocks is six, and the clamping blocks, the limiting sliding grooves and the movable blocks are uniformly distributed around the circumference of the end face of one side of the main body. Therefore, the clamping blocks which are uniformly and circumferentially distributed can ensure that the circumferential clamping degree of the pipe is kept consistent, and the clamping stability and the circumferential stress degree of the pipe are improved.

It should be noted that, the material of the clamping block includes, but is not limited to, nylon material. The nylon material has low hardness and certain elasticity, can fix the pipe and protect the pipe from being scratched, has higher friction force and can better fix the pipe.

Compared with the prior art, the utility model has the beneficial effects that:

according to the utility model, the second gear piece and the first gear piece are combined for transmission, the structure is more compact compared with the prior art, and compared with multi-stage gear transmission, the two-stage gear transmission can bear larger rotation torque, the phenomena of gear tooth stripping or gear tooth sliding are not easy to occur, and the reliability and the stability are stronger.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic structural view in the end face direction of the present invention.

The graphic symbols are illustrated as follows:

1-main body, 2-small bevel gear, 3-large bevel gear, 4-clamping block, 5-fixed pressure plate, 6-movable block, 7-oil pump, 8-pressure sensor and 10-pipe to be clamped.

Detailed Description

The present invention will be further described with reference to the following embodiments. Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. based on the orientation or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, but it is not intended to indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and are not to be construed as limiting the present patent, and the specific meaning of the terms may be understood by those skilled in the art according to specific circumstances.

Examples

As shown in fig. 1 to 2, the pipe clamping device comprises a main body 1 for wrapping the periphery of a pipe to be clamped, a plurality of clamping members movably connected to the main body 1 and used for clamping the outer side wall of the pipe at the same time, a driving device arranged on the main body 1 and used for driving the clamping members to move along the axis of the driving device, and a transmission mechanism arranged on the main body 1, wherein the transmission mechanism comprises a first gear member connected with the driving device, and a second gear member which is meshed with the first gear member and converts the rotary motion of the first gear member into the linear motion of the clamping members.

In the present embodiment, the number of the clamping pieces 4 is six, and the six clamping pieces 4 are uniformly distributed on the circumference of one side end face of the main body 1.

Like this, it is rotatory to drive first gear spare through drive arrangement, and first gear spare drives the rotation of second gear spare, and a plurality of clamping pieces are connected to the second gear spare to convert rotary motion into the rectilinear motion of clamping piece, drive the clamping piece and be close to the lateral wall of the tight tubular product of clamp of treating in the middle of main part 1, thereby compress tightly tubular product, realize pressing from both sides tight purpose.

As shown in fig. 1, the main body 1 is a hollow cylinder, the inner diameter of the inner circle of the main body 1 is larger than the outer diameter of the pipe to be clamped, a circular hole groove is formed in the circumferential side wall of the main body 1, an annular groove is formed in the side end face side wall of the main body 1 facing the clamping piece, the circular hole groove is communicated with the annular groove, the first gear piece is arranged in the circular hole groove, and the second gear piece is arranged in the annular groove.

As shown in fig. 1, the first gear member is a small bevel gear 2, the second gear member is a large bevel gear 3, peripheral bevel teeth are formed on the circumferential side wall of the large bevel gear 3, one end of the small bevel gear 2 is connected with a driving device, and the other end of the small bevel gear 2 is meshed with the peripheral bevel teeth of the large bevel gear 3.

Like this, drive arrangement opens for the bevel pinion 2 that is arranged in the circular hole groove of main part 1 lateral wall rotates, bevel pinion 2 and big bevel gear 3 intermeshing, big bevel gear 3 becomes the coaxial rotation of self and main part 1 with bevel pinion 2's longitudinal rotation, and the tight operation of clamp piece is realized with the clamping piece cooperation through the rotation of big bevel gear 3 self, and the compactness of structure, design benefit can be fine realizes the transmission.

As shown in fig. 1, the main part 1 still includes one end and the fixed pressure disk 5 of main part 1 fixed connection, a plurality of spacing spouts have been seted up on the fixed pressure disk 5, the clamping piece is including inlaying a plurality of movable blocks 6 of locating in every spacing spout, first screw thread has been seted up on the terminal surface of a plurality of movable blocks 6 towards big bevel gear 3 one side, set up the second screw thread with first screw thread engaged with on the terminal surface of a side of big bevel gear 3 orientation movable block 6, the clamping piece is still including fixing the tight piece 4 of clamp 4 in one side of every movable block 6 fixed pressure disk 5 dorsad.

In this embodiment, the limiting sliding groove is a T-shaped sliding groove, and the T-shaped sliding groove limits the movable block 6 to vertically clamp the outer side wall of the pipe to perform reciprocating motion.

Like this, this embodiment fixes the second gear spare between fixed pressure disk 5 and main part 1 through fixed pressure disk 5, difficult displacement and not hard up take place, the steadiness of structure has been strengthened, simultaneously through the rotation of big bevel gear 3, the meshing of the second screw thread through 3 lateral wall terminal surfaces of big bevel gear and the first screw thread of movable block 6, movable block 6 is under the rotation of big bevel gear 3, the line along the second screw thread removes passively, because the restriction of the last spacing spout of fixed pressure disk 5, movable block 6 only can move in spacing spout, the tight piece 4 of clamp fixed on movable block 6 also moves thereupon, the clamp of tubular product has been realized, the inseparable interlock of first screw thread and second screw thread can bear great rotation torque, the tooth or the phenomenon of sliding tooth of difficult appearance gear, the reliability is stronger.

During installation, the movable blocks 6 of the embodiment are required to be placed one by one according to the sequence of the positions of the thread meshing rotation, so that the moving position of each movable block 6 is kept consistent when the large bevel gear 5 moves towards/away from the pipe 10 to be clamped when the large bevel gear 5 rotates.

As shown in fig. 2, each clamping block 4 is further provided with a pressure sensor 8 for detecting the clamping pressure of the pipe to be clamped.

In this embodiment, the pressure sensor 8 is a contact sensor, the pressure sensor 8 is inserted into the clamping member 4, and the force-bearing end of the pressure sensor 8 contacts with the outer sidewall of the pipe 10 to be clamped when clamping.

As shown in fig. 1 and 2, the driving device includes an oil pump 7 connected to the first gear member, and a controller connected to the oil pump 7, the controller being connected to a pressure sensor 8.

Thus, after the pressure sensor 8 contacts the pipe 10 to be clamped, pressure data are collected and fed back to the controller, and the controller sends an instruction to control the oil pump 7 to stop or continue to apply pressure by analyzing the pressure data until a preset pressure value is reached, so that the oil pump 7 is stopped. Through the intelligent control of pressure sensor 8, oil pump 7 and controller, can realize accurate exerting pressure, reduce and exert pressure too big damage tubular product or exert pressure the undersize and compress tightly the poor problem of effect, realize the quick clamp of high accuracy and relax tubular product.

As shown in fig. 2, the end surface of each clamping block 4, which is in contact with the pipe 10 to be clamped, is arc-shaped. Therefore, the arc-shaped contact end can not damage the pipe and protect the pressed surface of the pipe.

In this embodiment, the clamping block 4 is made of nylon material. The nylon material has low hardness and certain elasticity, can fix the pipe and protect the pipe from being scratched, has higher friction force and can better fix the pipe.

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. The utility model provides a pipe clamp, is including being used for the parcel to live and treat that clamp pipe outlying main part (1), swing joint is in on main part (1) and be used for simultaneously pressing from both sides a plurality of clamping pieces of tight tubular product lateral wall, locate be used for the drive on main part (1) the clamping piece is along the drive arrangement of its self axis motion, and locate drive mechanism on main part (1), its characterized in that, drive mechanism include with the first gear spare that drive arrangement connects, and with the meshing of first gear spare and the second gear spare of the rectilinear motion who converts the rotary motion of first gear spare into the clamping piece.

2. The pipe clamping device according to claim 1, wherein the main body (1) is a hollow cylinder, the inner diameter of the inner circle of the main body (1) is larger than the outer diameter of the pipe to be clamped, a circular hole groove is formed in the circumferential side wall of the main body (1), an annular groove is formed in the side wall of the end face of the main body (1) facing the clamping member, the circular hole groove is communicated with the annular groove, the first gear member is arranged in the circular hole groove, and the second gear member is arranged in the annular groove.

3. The pipe clamping device according to claim 2, wherein the first gear member is a small bevel gear (2), the second gear member is a large bevel gear (3), peripheral bevel teeth are formed on the circumferential side wall of the large bevel gear (3), one end of the small bevel gear (2) is connected with the driving device, and the other end of the small bevel gear (2) is meshed with the peripheral bevel teeth of the large bevel gear (3).

4. The pipe clamping device according to claim 3, wherein the main body (1) further comprises a fixed pressure plate (5) having one end fixedly connected with the main body (1), the fixed pressure plate (5) is provided with a plurality of limiting sliding grooves, the clamping member comprises a plurality of movable blocks (6) embedded in each limiting sliding groove, the end surface of one side of the plurality of movable blocks (6) facing the large bevel gear (3) is provided with a first thread, and the end surface of one side of the large bevel gear (3) facing the movable blocks (6) is provided with a second thread engaged with the first thread.

5. A pipe clamp according to claim 4, characterized in that the clamping means further comprise a clamping block (4) fixed to the side of each movable block (6) facing away from the fixed pressure plate (5).

6. A pipe gripper according to claim 5, characterized in that each gripping block (4) is further provided with a pressure sensor (8) for detecting the gripping pressure of the pipe to be gripped.

7. A pipe clamp according to claim 6, wherein the pressure sensor (8) is a contact sensor, the pressure sensor (8) is inserted into the clamping member, and the force-bearing end of the pressure sensor (8) is contacted with the outer side wall of the pipe to be clamped when clamping.

8. A pipe clamp according to claim 6, wherein the drive means comprises an oil pump (7) connected to the first gear member, and a controller connected to the oil pump (7), the controller being connected to the pressure sensor (8).

9. A pipe clamp according to claim 6, characterized in that the end surface of each clamping block (4) which is in contact with the pipe to be clamped is rounded.

10. The pipe clamp according to claim 6, wherein the number of the clamping blocks (4), the limiting sliding grooves and the movable blocks (6) is six, and the clamping blocks (4), the limiting sliding grooves and the movable blocks (6) are uniformly distributed around the circumference of one side end face of the main body (1).