CN215394967U - Positioning pin disassembling system - Google Patents
Positioning pin disassembling system Download PDFInfo
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- CN215394967U CN215394967U CN202023225896.3U CN202023225896U CN215394967U CN 215394967 U CN215394967 U CN 215394967U CN 202023225896 U CN202023225896 U CN 202023225896U CN 215394967 U CN215394967 U CN 215394967U
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Abstract
The utility model provides a positioning pin dismounting system which comprises a pin pulling mechanism, wherein the pin pulling mechanism comprises a pulling rod and a piston cylinder, the pulling rod is arranged in the piston cylinder in a penetrating manner, the pulling rod is connected with a positioning pin, the pulling rod can drive the positioning pin to move along the direction opposite to the mounting direction of the positioning pin, and a hydraulic power mechanism is used for providing power for pulling out the positioning pin; the hydraulic power mechanism is connected with the pin pulling mechanism through the high-pressure oil pipe, the high-pressure oil pipe transmits power provided by the hydraulic power mechanism to the pin pulling mechanism, the pin pulling mechanism taking hydraulic pressure as power is adopted to detach the positioning pin, manpower is saved, and the pulling speed of the positioning pin is increased.
Description
Technical Field
The utility model relates to the field of mechanical equipment maintenance, in particular to a positioning pin dismounting system.
Background
Locating pins, a part that participates in limiting the degrees of freedom of an object, have found application in some machines that move mechanically, with the workpiece hole as a reference for positioning, pins designed to control linear motion of the object in X, Y, Z three axial directions, and six degrees of freedom of rotational motion about X, Y, Z, in a two or more part machine, to accurately position two adjacent parts of the machine.
When a set of combined equipment is formed by connecting or combining a plurality of parts or equipment, and each part needs to keep an accurate position during processing and assembling, positioning pins are adopted for positioning, such as a top cover and a seat ring of a water turbine, an upper frame, a lower frame, a base plate and the like of a hydraulic generator are all positioned by adopting positioning pins.
After the positioning pin is used for a long time, the positioning pin is difficult to pull out due to equipment vibration, corrosion and the like, most of traditional pin pulling tools adopt a method that a screw is matched with a sleeve and an end cover to pull out the pin, the method is long in operation time, and manpower is consumed. For example, a large-scale hydroelectric generating set is overhauled once every 6-8 years, the number of positioning pins on the top cover of the water turbine is large, time and labor are wasted by adopting a traditional method, and the overhauling quality and the construction period of the unit are influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a dismounting device for a positioning pin of mechanical equipment, which is used for solving the technical problem when a large number of positioning pins are pulled out.
The embodiment of the utility model is realized by the following steps: a dowel removal system, comprising:
the pin pulling mechanism comprises a pulling rod and a piston cylinder, the pulling rod is arranged in the piston cylinder in a penetrating mode and connected with the positioning pin, and the pulling rod can drive the positioning pin to move along the direction opposite to the installation direction of the positioning pin;
the hydraulic power mechanism is used for providing power for pulling out the positioning pin;
the hydraulic power mechanism is connected with the pin pulling mechanism through a high-pressure oil pipe, and the high-pressure oil pipe transmits power provided by the hydraulic power mechanism to the pin pulling mechanism.
Preferably, the pin pulling mechanism further comprises a piston and a first quick joint cylinder, wherein the piston is arranged in the circumferential direction of the pulling rod and is fixedly connected with the pulling rod, and the piston can drive the pulling rod to move axially along a piston cylinder; the piston cylinder comprises a cavity and end covers at two ends, the diameter of the cavity is equal to the outer circumferential diameter of the piston, and the diameter of an opening of the end cover is equal to the outer circumferential diameter of the drawing rod.
Preferably, the circumferential surface of the piston is provided with a first sealing ring; a second sealing ring is arranged on the inner surface of an opening of the end cover, which is close to one end of the positioning pin, when the piston cylinder works; and a sealing cavity is formed among the drawing rod, the piston and the piston cylinder through a sealing ring.
Preferably, the first quick joint cylinder is arranged in the circumferential direction of the piston cylinder and is axially close to the end cover with the second sealing ring; a through hole is formed in the circumferential direction of the piston cylinder and is communicated with the first quick joint cylinder and the sealing cavity, and hydraulic oil enters the control piston from the first quick joint cylinder to move.
Preferably, the drawing rod comprises a drawing rod body and a connecting screw rod, and a threaded hole is formed in the middle of the drawing rod body; the connecting screw rod is of a two-section type stepped structure and is respectively a large screw rod and a small screw rod, the large screw rod is in threaded fit with a drawing rod body of the drawing rod, the small screw rod is in threaded fit with the positioning pin, and a hexagonal hole matched with the inner hexagonal wrench is formed in the end face of the large screw rod.
Preferably, a support is arranged at one end, close to the positioning pin, of the piston cylinder, the support supports the positioning pin in a pulling-out mode, the support is cylindrical, the axis of the support coincides with the axis of the piston cylinder, a circular observation hole is further formed in the support, and the diameter of the observation hole is 30-50% of the height of the support.
Preferably, the hydraulic power mechanism comprises a motor, a hydraulic pump, a loading valve group, an oil tank and a second quick joint cylinder, and the oil tank, the hydraulic pump and the loading valve group are sequentially connected through a pipeline; the motor is used for driving the hydraulic pump; the second quick connector cylinder is arranged on the loading valve group; four idler wheels are arranged at the bottom of the oil tank and can be used for moving the oil tank.
Preferably, the high-pressure oil pipe is made of rubber, and two ends of the high-pressure oil pipe are respectively connected with a quick coupling matrix to realize quick detachable connection between the high-pressure oil pipe and the hydraulic power mechanism and between the high-pressure oil pipe and the pin pulling mechanism.
Preferably, the loading valve group can be simultaneously connected with a plurality of second quick coupling columns through pipelines, each second quick coupling column is respectively connected with a quick coupling matrix on a high-pressure oil pipe, and a hydraulic power mechanism simultaneously provides power for a plurality of pin pulling mechanisms.
The embodiment of the utility model has the beneficial effects that:
1. the pin pulling mechanism taking hydraulic pressure as power is adopted to detach the positioning pin, so that labor is saved, and the pulling speed of the positioning pin is increased.
2. The pulling-out mechanism is connected with the hydraulic power mechanism through the high-pressure oil pipe, the hydraulic power mechanism can be arranged in a convenient place for a positioning pin in a narrow space or a higher position, and the high-pressure oil pipe transmits power to the pulling-out mechanism, so that unnecessary moving of equipment is avoided.
3. The hydraulic pressure is used as the power for pulling out the positioning pin, the pulling-out force is stable and controllable, the probability of damage to the positioning pin caused by unbalanced force is reduced, and the safety in the working process is ensured.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic structural diagram of a locating pin removal system according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a hydraulic power connection provided by an embodiment of the utility model.
Reference numerals:
1. a pin pulling mechanism; 11. a piston cylinder; 111. a cavity; 112. an end cap; 113 a second seal ring; 12. Pulling the rod; 121. a drawing rod body; 122. connecting a screw rod; 1221. a large screw; 1222. a small screw; 123. a hexagonal hole; 13. a piston; 131. a first seal ring; 14. sealing the cavity; 15. a first quick connector cylinder; 151. a through hole; 16. a support; 161. an observation hole; 2. a hydraulic power mechanism; 21. an electric motor; 22. a hydraulic pump; 221. an oil inlet pipe; 23. loading a valve group; 231. a loading valve group handle; 232. a second quick connector cylinder; 233. an oil return pipe; 24. an oil tank; 25. a roller; 26. A pressure gauge; 3. a high pressure oil pipe; 31. a quick connector parent body; 4. positioning pins; 5. and (4) mechanical equipment.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. Meanwhile, in the description of the present invention, the terms "first", "second", and the like are used only for distinguishing the description, and are not to be construed as indicating or implying relative importance.
Referring to fig. 1, the utility model provides a positioning pin dismounting system, which comprises a pin pulling mechanism (1) and a hydraulic power mechanism (2), wherein the pin pulling mechanism (1) comprises a pulling rod (12) and a piston cylinder (11), the pulling rod (12) is arranged in the piston cylinder (11) in a penetrating way and can move along the axial direction of the piston cylinder (11), the pulling rod (12) is connected with the positioning pin (4), the pulling rod (12) can drive the positioning pin (4) to move along the opposite direction of the mounting direction of the positioning pin (4) so as to pull out the positioning pin (4) from a pin hole, and the hydraulic power mechanism (2) provides power for pulling the pin pulling mechanism (1) to pull out the positioning pin (4); the hydraulic power mechanism is connected with the pin pulling mechanism (1) through the high-pressure oil pipe (3), the high-pressure oil pipe (3) transmits power provided by the hydraulic power mechanism to the pin pulling mechanism (1), in other words, the hydraulic power mechanism (2) transmits hydraulic oil to the pin pulling mechanism (1) through the high-pressure oil pipe (3), and the positioning pin (4) is pulled out by taking hydraulic pressure as power.
According to the technical scheme, when the positioning pin (4) is pulled out, the pulling rod (12) of the pulling mechanism (1) is connected with the positioning pin (4) to be pulled out, when the connection between the pulling rod (12) and the positioning pin (4) is completed, the piston cylinder (11) and the surface of the mechanical equipment (5) around the positioning pin hole form stable support, then the pulling mechanism (1) is in power connection with the hydraulic power mechanism (2) through the high-pressure oil pipe (3), the hydraulic power mechanism (2) provides power to enable the pulling rod (12) to move towards the direction far away from the positioning pin hole relative to the hydraulic cylinder, and due to the connection between the pulling rod (12) and the positioning pin (4), the positioning pin (4) can be pulled out of the positioning pin hole in the moving process of the positioning pin (4).
The pin pulling mechanism (1) is connected with the positioning pin (4) in a mode that hydraulic pressure is used as power to pull out the positioning pin (4), compared with a manual mode that a screw rod is matched with a sleeve and an end cover (112) to pull out the pin, manpower is saved, the time for pulling out the positioning pin (4) is shortened, stable and adjustable hydraulic pressure provides stable force for pulling out the positioning pin (4), and the positioning pin (4) is prevented from being damaged due to uneven stress.
Furthermore, the pin pulling mechanism (1) further comprises a piston (13) and a first quick joint cylinder (15), the piston (13) is arranged in the circumferential direction of the pulling rod (12) and is fixedly connected with the pulling rod (12) and can drive the pulling rod (12) to move axially along the piston cylinder (11), the piston cylinder (11) comprises a cavity (111) and end covers (112) at two ends, the diameter of the cavity (111) is equal to the outer circumferential diameter of the piston (13), the opening diameter of each end cover (112) is equal to the outer circumferential diameter of the pulling rod (12), the piston (13) is attached to the inner surface of the cavity (111) of the piston cylinder (11), and the opening diameter of each end cover (112) is smaller than the diameter of the outer surface of the piston (13), so that the movement of the piston (13) along the axis of the piston cylinder (11) is limited between the end covers (112).
Through the technical scheme, the first quick joint cylinder (15) can be quickly connected with the quick joint matrix (31) on the high-pressure oil pipe (3), hydraulic oil is introduced into the hydraulic oil cylinder (it needs to be explained that the quick joint can be a hydraulic quick joint, the quick joint cylinder and the quick joint matrix (31) are respectively a male joint cylinder and a female joint matrix of the hydraulic quick joint, quick splicing connection can be realized), the hydraulic oil enters the cavity (111) in the hydraulic cylinder, the piston (13) is pushed to move in the cavity (111) of the piston cylinder (11), and meanwhile, the pull rod (12) is driven to move.
Furthermore, a first sealing ring (131) is installed on the circumferential surface of the piston (13), a second sealing ring (113) is arranged on the inner surface of an opening of the end cover (112) close to one end of the positioning pin (4) when the piston cylinder (11) works, a sealing cavity (14) is formed among the drawing rod (12), the piston (13) and the piston cylinder (11) through the sealing rings, and the size of the sealing cavity (14) changes along with the introduction or outflow of hydraulic oil.
Furthermore, a first quick joint cylinder (15) is arranged in the circumferential direction of the piston cylinder (11), and is axially close to an end cover (112) with a second sealing ring (113), a through hole (151) is formed in the circumferential direction of the piston cylinder (11) to communicate the first quick joint cylinder (15) with a sealing cavity (14), hydraulic oil enters the control piston (13) from the first quick joint cylinder (15), the through hole (151) through which the hydraulic oil enters is formed in one end of the end cover (112) with the second sealing ring (113) on the hydraulic cylinder, namely, one end of the piston rod is close to one end of the positioning pin (4) when the piston rod is pulled, liquid can be added into the sealing cavity (14) at the minimum, and the piston (13) and the pulling rod (12) move towards the direction far away from the positioning pin (4) to pull the pin.
Furthermore, the drawing rod (12) comprises a drawing rod body (121) and a connecting screw rod (122), a threaded hole is formed in the middle of the drawing rod body (121), the connecting screw rod (122) is of a two-section stepped structure and comprises a large screw rod (1221) and a small screw rod (1222), the large screw rod (1221) is in threaded fit with the drawing rod body (121) of the drawing rod (12), the small screw rod (1222) is in threaded fit with the positioning pin (4), and a hexagonal hole (123) matched with an inner hexagonal wrench is formed in the end face of the large screw rod (1221). When the positioning pin (4) is connected with the pin pulling mechanism (1), one end of a small screw rod (1222) of a connecting screw rod (122) is screwed into a threaded hole formed in the positioning pin (4), then a hydraulic cylinder is rotated to drive a pulling rod (12) to rotate, so that a pulling rod body (121) is in threaded fit with a large screw rod (1221) section of the connecting screw rod (122), and finally the pin pulling mechanism (1) is connected with a hydraulic power mechanism (2) to pull out the positioning pin (4) by taking hydraulic pressure as power. When the small screw rod (1222) of the connecting screw rod (122) is screwed into the positioning pin (4) and the positioning pin (4) is taken out of the pin pulling mechanism (1), the rotation direction of the connecting screw rod (122) is controlled through the cooperation of the hexagonal hole (123) and the inner hexagonal wrench, and convenient operation can be achieved.
Preferably, the large screw (1221) and the small screw (1222) have the same thread direction, and the small screw (1222) and the positioning pin (4) keep the screwing motion trend when in thread fit with the drawing rod body (121) after the connecting screw (122) and the positioning pin (4) are connected, but do not move backwards.
Further, piston cylinder (11) are close to locating pin (4) one end and are provided with support (16), support (16) provide the support for the pulling out of locating pin (4), and support (16) are cylindric, support (16) axis and piston cylinder (11) axis coincidence, support (16) directly support and provide the support at mechanical equipment (5) surface for the reverse movement of pulling rod (12), a circular shape observation hole (161) has still been seted up on support (16), be convenient for observe the pulling out condition of locating pin (4), observation hole (161) diameter is 30 ~ 50% of support (16) height, can also keep sufficient support intensity when clearly observing locating pin (4).
Preferably, the height of the support (16) is longer than the length of the positioning pin (4), so that the positioning pin (4) can be completely pulled out of the pin hole.
Furthermore, the hydraulic power mechanism (2) comprises a motor (21), a hydraulic pump (22), a loading valve group (23), an oil tank (24) and a second quick joint cylinder (232), wherein the oil tank (24), the hydraulic pump (22) and the loading valve group (23) are sequentially connected through a pipeline; the electric motor (21) is used for driving a hydraulic pump (22); a second quick coupling cylinder (232) is arranged on the loading valve group (23); four rollers (25) are arranged at the bottom of the oil tank (24) and can be used for moving the oil tank (24).
Through the technical scheme, when power needs to be supplied, the motor (21) is started, hydraulic oil enters through the oil inlet pipe (221) of the oil pump, under the action of the oil pump, pressure oil enters the loading valve group (23) from the oil outlet pipe of the oil pump, and the handle (231) of the loading valve group is rotated, so that the hydraulic oil is output to the sealing cavity (14) of the pin pulling mechanism (1) through the high-pressure oil pipe (3). After each pin pulling operation is completed, the loading valve group handle (231) is manually rotated and loosened, so that pressure oil flows back to the oil tank (24) through the pressure relief pipe, and the pin pulling mechanism (1) is manually pressed to the initial position to perform the next pin pulling operation.
Furthermore, the hydraulic power mechanism (2) can further comprise a pressure gauge (26), the output hydraulic pressure is checked through the pressure gauge (26), and the drawing force of the positioning pin (4) can be accurately controlled.
Further, high pressure fuel pipe (3) material is rubber, and a quick-operation joint parent (31) is connected respectively at high pressure fuel pipe (3) both ends, realize with hydraulic power unit (2) and pull out quick detachable between the round pin mechanism (1) and be connected, can use quick-operation joint to connect hydraulic oil power fast after drawing pole body of rod (121) and positioning screw's big screw rod (1221) completion is connected, can extract quick-operation joint parent (31) of pulling out round pin mechanism (1) end before drawing pole body of rod (121) rotates to be connected next big screw rod (1221), make piston cylinder (11) can with connecting screw (122) relative rotation.
Referring to fig. 2, further, a plurality of second quick-operation joint cylinders (232) are connected simultaneously to loading valves (23) accessible pipeline, every second quick-operation joint cylinder (232) is connected with quick-operation joint matrix (31) on a high pressure fuel pipe (3) respectively, provide power for a plurality of pulling pin mechanisms (1) simultaneously by hydraulic power unit (2), can pull out numerous locating pin (4) of quantity by a plurality of staff control a plurality of pulling pin mechanisms (1) when a large amount of locating pin (4) need be pulled out, improve work efficiency.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A locating pin removal system, comprising:
the pin pulling mechanism comprises a pulling rod and a piston cylinder, the pulling rod is arranged in the piston cylinder in a penetrating mode and connected with the positioning pin, and the pulling rod can drive the positioning pin to move along the direction opposite to the installation direction of the positioning pin;
the hydraulic power mechanism is used for providing power for pulling out the positioning pin;
the hydraulic power mechanism is connected with the pin pulling mechanism through a high-pressure oil pipe, and the high-pressure oil pipe transmits power provided by the hydraulic power mechanism to the pin pulling mechanism.
2. The dowel removal system of claim 1, wherein the dowel mechanism further includes a piston, a first quick coupler cylinder,
the piston is arranged in the circumferential direction of the drawing rod and is fixedly connected with the drawing rod, and the drawing rod can be driven to move along the axial direction of the piston cylinder;
the piston cylinder comprises a cavity and end covers at two ends, the diameter of the cavity is equal to the outer circumferential diameter of the piston, and the diameter of an opening of the end cover is equal to the outer circumferential diameter of the drawing rod.
3. The dowel removal system of claim 2, wherein the piston circumferential surface is fitted with a first seal ring; a second sealing ring is arranged on the inner surface of an opening of the end cover, which is close to one end of the positioning pin, when the piston cylinder works; and a sealing cavity is formed among the drawing rod, the piston and the piston cylinder through a sealing ring.
4. The dowel removal system of claim 3, wherein the first quick connector body is disposed circumferentially of the piston cylinder and axially adjacent to an end cap with a second seal ring; a through hole is formed in the circumferential direction of the piston cylinder and is communicated with the first quick joint cylinder and the sealing cavity, and hydraulic oil enters the control piston from the first quick joint cylinder to move.
5. The locating pin disassembling system of claim 2, wherein the pulling rod comprises a pulling rod body and a connecting screw rod, and a threaded hole is formed in the middle of the pulling rod body; the connecting screw rod is of a two-section type stepped structure and is respectively a large screw rod and a small screw rod, the large screw rod is in threaded fit with a drawing rod body of the drawing rod, the small screw rod is in threaded fit with the positioning pin, and a hexagonal hole matched with the inner hexagonal wrench is formed in the end face of the large screw rod.
6. The locating pin disassembling system according to claim 2, wherein a support is arranged at one end, close to the locating pin, of the piston cylinder, the support supports the locating pin in a pulling mode, the support is cylindrical, the axis of the support coincides with the axis of the piston cylinder, a circular observation hole is further formed in the support, and the diameter of the observation hole is 30-50% of the height of the support.
7. The locating pin disassembling system according to claim 1, wherein the hydraulic power mechanism comprises a motor, a hydraulic pump, a loading valve group, an oil tank and a second quick coupling cylinder, and the oil tank, the hydraulic pump and the loading valve group are sequentially connected through a pipeline; the motor is used for driving the hydraulic pump; the second quick connector cylinder is arranged on the loading valve group; four idler wheels are arranged at the bottom of the oil tank and can be used for moving the oil tank.
8. The locating pin disassembling system according to claim 1, wherein the high-pressure oil pipe is made of rubber, and two ends of the high-pressure oil pipe are respectively connected with a quick coupling matrix to realize quick and detachable connection with the hydraulic power mechanism and the pin pulling mechanism.
9. The locating pin removal system of claim 7, wherein the loading valve block is configured to simultaneously couple to a plurality of second quick connector posts via a conduit, each second quick connector post being coupled to a quick connector body on a high pressure fuel line, the plurality of pin pulling mechanisms being simultaneously powered by a hydraulic power mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023225896.3U CN215394967U (en) | 2020-12-28 | 2020-12-28 | Positioning pin disassembling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023225896.3U CN215394967U (en) | 2020-12-28 | 2020-12-28 | Positioning pin disassembling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215394967U true CN215394967U (en) | 2022-01-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023225896.3U Active CN215394967U (en) | 2020-12-28 | 2020-12-28 | Positioning pin disassembling system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215394967U (en) |
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2020
- 2020-12-28 CN CN202023225896.3U patent/CN215394967U/en active Active
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