Brake of pumping unit power part

Abstract

The invention relates to a brake of a power part of a pumping unit, which is used in the field of oil extraction. The invention relates to a hydraulic clamping device which is arranged between a motor (07) and a speed reducer (03), and is characterized in that two clamping arms (20) are arranged on a base (40) through two base shafts (409), two brake blocks (30) are arranged between the two clamping arms (20) through a brake shaft (306), and an adjusting rod (10) is arranged between a pull rod shaft (105) and a pull rod locking shaft (108) at the upper parts of the two clamping arms (20); the vertical angle of the two clamping arms (20) is adjusted through cooperation of a lower screw rod (408) on a lower screw rod base (401) and a lower check block (206), and the concentric angle of the brake block (30) is adjusted through cooperation of an upper screw rod (214) on an upper screw rod base (205) and the brake block (30). The device has the advantages of high safety coefficient, high performance temperature and simplicity and convenience in operation.

Description

Technical Field

[0001] The invention relates to the field of oil production, and in particular to a brake of a power part of an oil pump. Background Art

[0002] In the field of oil production, the first thing to do is to pump oil from deep in the formation into the oil pipeline and then send it to the transfer station. The most widely used pumping unit in China is the reciprocating walking beam type, which converts the circular motion of the motor into the up and down linear motion of the sucker rod. There is also a type of pumping unit whose scope of use is gradually expanding, namely the tower type pumping unit, which eliminates the walking beam and only has a tower and a platform. It uses belts and belt rollers to convert the circular motion of the reversible motor into the up and down reciprocating linear motion of the sucker rod. This tower pumping unit usually installs the reversible motor and the reducer on the platform at the top of the tower. There is a causal relationship between the tower height and the stroke of the sucker rod. The slightly shorter tower is about six meters, and the eight to nine meters high tower is seen in many oil fields. Installing and running several tons of operating equipment at such a height puts forward stringent requirements on the strength and stability of the tower. A series of problems such as the manufacturing cost of the tower, installation and maintenance costs, and safety risks also appear at the same time. Finally, a type of oil pump is to install the power device on the bottom platform and the reversing device on the top of the tower, so that the requirements for tower manufacturing and maintenance are balanced. The power device of the oil pump is mainly composed of a motor and a reducer, which need to be connected by a transmission mechanism to achieve power transmission and complete the work of the oil pump.

[0003] No matter what kind of oil pumping unit, the two ends of the belt or wire rope, one end is connected to the sucker rod, and the other end is connected to the counterweight weighing several tons to more than ten tons. The pumping unit tower is nearly ten meters high. Whenever it is shut down for maintenance or other situations that require shutdown, the inertia due to its large weight cannot be reduced, and the sucker rod and the counterweight cannot be smoothly docked at a certain set position on the tower. This requires connecting a braking device with a large controllable friction force to give the transmission equipment a controllable force, so that the sucker rod and the counterweight can be gradually docked at the set position and strongly locked to prevent displacement and accidents during maintenance operations. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a brake for the power part of an oil pump, and introduces the technical solution of the present invention to solve the above-mentioned problems.

[0005] The present invention provides the following technical solution, a brake for the power part of the oil pump, installed between the motor 07 and the reducer 03, and characterized in that: two clamping arms 20 are installed on the base 40 by two base shafts 409, two brake blocks 30 are installed in the middle of the two clamping arms 20 by a brake shaft 306, and an adjusting pull rod 10 is installed between the pull rod shaft 105 and the pull rod locking shaft 108 at the upper part of the two clamping arms 20; the upright angle of the two clamping arms 20 is adjusted by the lower screw 408 on the lower screw seat 401 and the lower stop block 206, and the concentric angle of the brake block 30 is adjusted by the upper screw 214 on the upper screw seat 205 and the brake block 30.

[0006] Its characteristics are: the base 40 includes two flat base plates 403 with base bolt holes 404, and also includes two base vertical plates 405 vertically welded on the base plates 403 and with an inner concave arc 407 in the middle and base shaft holes 406 at both ends, and also includes a lower screw seat 401 with a lower threaded hole 402 vertically welded on the outer ends of the two base plates 403, and connected into one.

[0007] Its characteristics are: the brake block 30 body is an arc-shaped brake pad 304, two brake sleeves 302 with brake shaft holes 301 are welded on the top of the arc-shaped brake pad 304, and the reinforcing ribs 303 are welded on the brake sleeves 302 and the arc-shaped brake pad 304 respectively.

[0008] Its characteristics are: the clamp arm 20 body is composed of a clamp arm upper section 202, a clamp arm middle section 203, and a clamp arm lower section 207, respectively with a clamp arm upper shaft hole 201, a clamp arm middle shaft hole 204, and a clamp arm lower shaft hole 208, and the two clamp arm 20 bodies are welded with a clamp arm upper shaft sleeve 210, a clamp arm middle shaft sleeve 211, and a clamp arm lower shaft sleeve 213 at corresponding positions, forming a clamp arm cavity 209 between the two clamp arm 20 bodies, and on the opposite outer sides of the two clamp arm 20 bodies, an upper screw seat 205 with an upper threaded hole 212 and a lower stopper 206 are respectively welded at corresponding heights.

[0009] Its characteristics are: a "U"-shaped pull rod shaft seat 102 with a pull rod shaft hole 103 is welded to the left end of the pull rod body 101, which is installed on the pull rod shaft 105. A thread 104 is provided at the right end of the pull rod body 101, and an adjusting sleeve 106 is assembled on the thread 104. Two nuts 107 are installed at both ends of the adjusting sleeve 106. The right end of the pull rod body 101 passes horizontally through the through hole 109 of the pull rod locking shaft 108.

[0010] The characteristics are as follows: the adjusting rod 10 is installed on the upper part of the two clamping arms 20 by the rod shaft 105 and the rod locking shaft 108; the two brake blocks 30 are installed in the middle of the clamping arms 20 by two brake shafts 306 and pins 305; and the two clamping arms 20 are installed on the base vertical plate 405 by two base shafts 409.

[0010] Its advantages are: high safety factor, high performance temperature, the brake is installed between the motor 07 and the reducer 03, and the operator can complete the operation while standing on the ground. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 Schematic diagram of the installation position of the brake 05 of the present invention; Figure 2 It is a front view of the brake 05; Figure 3 for Figure 2 Right view of; Figure 4 is a perspective view of the brake 05; Figure 5 A front view of the adjustment rod 10; Figure 6 for Figure 5 A top view of Figure 7 is a front view of the clamp arm 20; Figure 8 yes Figure 7 Right view of; Fig. 9 is a perspective view of the clamp arm 20; Fig.10 is a front view of the brake pad 30; Fig.11 yes Fig.10 Right view of; Fig.12 It is a perspective view of the brake pad 30 . Fig.13 is a perspective view of the base 40;

[0012] In the figure: the corresponding serial numbers of each part and component are not arranged in a continuous order of natural numbers. The naming is only for the convenience of narrative expression. At the same time, referring to industry standards and habits, the names are based on purpose, function, shape, position and direction as follows: 01. Sprocket; 02. Output shaft; 03. Reducer; 04. Connector; 05. Brake; 06. Motor shaft; 07. Motor; 10. Adjustment rod; 101. Rod body; 102. Rod shaft seat; 103. Rod shaft hole; 104. Thread; 105. Rod shaft; 106. Adjustment sleeve; 107. Nut; 108. Rod locking shaft; 109. Through hole; 20. Clamp arm; 201. Clamp arm upper shaft hole; 202. Clamp arm upper section; 203. Clamp arm middle section; 204. Clamp arm Middle axis hole; 205. Upper screw seat; 206. Lower stopper; 207. Lower section of clamp arm; 208. Lower axis hole of clamp arm; 209. Clamp arm cavity; 210. Upper shaft sleeve of clamp arm; 211. Middle shaft sleeve of clamp arm; 212. Upper threaded hole; 213. Lower shaft sleeve of clamp arm; 214. Upper screw; 30. Brake block; 301. Brake shaft hole; 302. Brake shaft sleeve; 303. Reinforcement rib; 304. Arc brake pad; 305. Pin; 306. Brake shaft; 40. Base; 401. Lower screw seat; 402. Lower threaded hole; 403. Base plate; 404. Base bolt hole; 405. Base vertical plate; 406. Base shaft hole; 407. Inner concave arc; 408. Lower screw; 409. Base shaft. The above parts from the same or similar functional parts are given the same numerical prefixes for the sake of simplicity of expression; the figures are not completely proportional. DETAILED DESCRIPTION

[0013] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0014] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form, such as the number of each bolt hole, etc.

[0015] Unless otherwise specifically stated, the relative arrangement of the parts and steps described in these embodiments, numerical expressions and numerical values ​​do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, such as the background technology, the applicant's prior patents mentioned are only given the patent number and name, and the details are shown in the patent literature. Any specific value should be interpreted as being merely exemplary, not as a limitation. Therefore, other examples of exemplary embodiments may have different values.

[0016] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom, upper part, lower part" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present invention; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0017] For ease of description, spatially relative terms such as "above", "above", "on the upper surface", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It is necessary to combine the views to clearly understand their meanings, and deviations are prone to occur if they are separated from specific views. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the figure is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" may include both "above" and "below".

[0018] See also Figure 1-13 , the technical solutions in the embodiments of the present invention will be clearly and completely described below in combination with the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0019] The brake of the power part of the oil pump described in the present invention is installed between the motor 07 and the reducer 03. Figure 1 As shown, the motor 07 and the reducer 03 are ordered products. Figure 2 --As shown in Figure 4: Two clamp arms 20 are installed on the base 40 by two base shafts 409. The base 40 is fixed on the base of the well platform through four base bolt holes 404 on the base plate 403. Two brake blocks 30 are installed in the middle of the two clamp arms by the brake shaft 306. The clamp arms 20 are installed in opposite directions, and a pair of brake blocks 30 are also installed with arc surfaces facing each other. An adjustment rod 10 is installed between the left pull rod shaft 105 and the right pull rod locking shaft 108 on the upper part of the two clamp arms 20; the two clamp arms 20 are in a vertical angle when in normal use, and the angle can be adjusted by the lower screw 408 on the lower screw seat 401 and the lower stopper 206. The concentric angle of the brake block 30 is adjusted by the upper screw 214 on the upper screw seat 205 and the brake block 30. Because the braking action object of the two brake blocks 30 is a circular shaft, the concentricity needs to be adjusted.

[0020] Base 40 Fig.13 As shown, it includes two base plates 403 located at both ends and placed flat with base bolt holes 404, and also includes two base vertical plates 405 vertically welded between the two base plates 403, facing upward and with an inner concave arc 407 in the middle and four base shaft holes 406 at both ends, and also includes a lower screw seat 401 with a lower threaded hole 402 vertically welded at the outer ends of the two base plates 403, and welded together.

[0021] Brake block 30 Figure 10-12 As shown, the brake block 30 body is an arc-shaped brake pad 304, and two brake sleeves 302 with brake shaft holes 301 are welded on the top (arc top) of the arc-shaped brake pad 304. The reinforcing ribs 303 are welded on the brake sleeves 302 and the arc-shaped brake pad 304 respectively. The two arc-shaped brake pads 304 have the same curvature and are made of wear-resistant steel.

[0022] The clamp arm 20 body is as follows Figure 7As shown in FIG. 9 , the clamp arm 20 body is composed of the clamp arm upper section 202, the clamp arm middle section 203, and the clamp arm lower section 207, each of which is composed of two pieces and has a certain curvature. The clamp arm upper shaft hole 201, the clamp arm middle shaft hole 204, and the clamp arm lower shaft hole 208 are respectively provided. The two clamp arm 20 bodies are welded with the clamp arm upper shaft sleeve 210, the clamp arm middle shaft sleeve 211, and the clamp arm lower shaft sleeve 213 corresponding to the above-mentioned shaft hole positions, and the clamp arm cavity 209 is formed between the two clamp arm 20 bodies. On the relative outer sides of the two clamp arm 20 bodies, corresponding to the bottom edge of the brake pad 30 and the front end height of the lower screw 408, the upper screw seat 205 with the upper threaded hole 212 and the lower stopper 206 are respectively welded. The front end of the upper screw 214 cooperates with the brake pad 304, and the front end of the lower screw 408 cooperates with the lower stopper 206.

[0023] Adjust the pull rod 10 as Figure 5-6 As shown, a "U"-shaped tie rod shaft seat 102 with a tie rod shaft hole 103 is welded on the left end of the tie rod body 101, which is installed on the tie rod shaft 105. A thread 104 is provided on the right end of the tie rod body 101, and an adjustment sleeve 106 is assembled on the thread 104. Two nuts 107 are installed at both ends of the adjustment sleeve 106. The right end of the tie rod body 101 passes horizontally through the through hole 109 of the tie rod locking shaft 108. The function of the adjustment tie rod 10 is to adjust and tighten the two clamping arms 20, drive the brake block 30 to "hold" the motor shaft 06, and further limit the movement and displacement of the sprocket 01 at the outer end of the reducer 03 and its matching chain, counterweight, sucker rod, etc., so as to facilitate the installation / maintenance of related equipment by construction personnel, ensure personnel safety, and avoid accidents.

[0024] The adjusting rod 10 is installed on the upper part of the two clamping arms 20 by the rod shaft 105 and the rod locking shaft 108, and the two brake blocks 30 are installed in the middle part of the clamping arms 20 by two brake shafts 306 and pins 305; the two clamping arms 20 are installed on the base vertical plate 405 by two base shafts 409.

[0025] It should be noted that, although one embodiment of the present invention has been shown and described herein, it is understandable to those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention. Among them, the technical principles provided by the present invention are adopted to transform the present invention into an integrated oil pumping and well servicing machine. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A brake for the power part of an oil pump, installed between a motor (07) and a reducer (03), characterized in that: Two clamping arms (20) are mounted on the base (40) via two base shafts (409); two brake blocks (30) are mounted in the middle of the two clamping arms (20) via a brake shaft (306); an adjusting pull rod (10) is mounted between a pull rod shaft (105) and a pull rod locking shaft (108) at the upper parts of the two clamping arms (20); the vertical angles of the two clamping arms (20) are adjusted by the cooperation between a lower screw rod (408) on a lower screw rod seat (401) and a lower block (206); and the concentric angle of the brake block (30) is adjusted by the cooperation between an upper screw rod (214) on an upper screw rod seat (205) and the brake block (30).

2. The brake of the power part of the oil pump according to claim 1 is characterized in that: The base (40) includes two flat base plates (403) with base bolt holes (404), two base vertical plates (405) vertically welded on the base plates (403) and having an inner concave arc (407) in the middle and base shaft holes (406) at both ends, and a lower screw seat (401) with a lower threaded hole (402) vertically welded on the outer ends of the two base plates (403) and connected into one body.

3. The brake of the power part of the oil pump according to claim 1 is characterized in that: The brake block (30) body is an arc-shaped brake pad (304), two brake sleeves (302) with brake shaft holes (301) are welded on the top of the arc-shaped brake pad (304), and reinforcing ribs (303) are respectively welded on the brake sleeves (302) and the arc-shaped brake pad (304).

4. The brake of the power part of the oil pump according to claim 1 is characterized in that: The clamp arm (20) body is composed of a clamp arm upper section (202), a clamp arm middle section (203), and a clamp arm lower section (207), and is respectively provided with a clamp arm upper shaft hole (201), a clamp arm middle shaft hole (204), and a clamp arm lower shaft hole (208). The two clamp arm (20) bodies are welded with a clamp arm upper shaft sleeve (210), a clamp arm middle shaft sleeve (211), and a clamp arm lower shaft sleeve (213) at corresponding positions, forming a clamp arm cavity (209) between the two clamp arm (20) bodies. On the opposite outer sides of the two clamp arm (20) bodies, an upper screw seat (205) with an upper threaded hole (212) and a lower stopper (206) are respectively welded at corresponding heights.

5. The brake of the power part of the oil pump according to claim 1 is characterized in that: A U-shaped pull rod shaft seat (102) with a pull rod shaft hole (103) is welded to the left end of the pull rod body (101) and is installed on the pull rod shaft (105). A thread (104) is provided at the right end of the pull rod body (101). An adjusting sleeve (106) is assembled on the thread (104). Two nuts (107) are installed at both ends of the adjusting sleeve (106). The right end of the pull rod body (101) passes horizontally through a through hole (109) of a pull rod locking shaft (108).

6. A brake for the power part of an oil pump according to any one of claims 1, 2, 3, 4, or 5, characterized in that: The adjusting pull rod (10) is installed on the upper part of the two clamping arms (20) by the pull rod shaft (105) and the pull rod locking shaft (108); the two brake blocks (30) are installed on the middle part of the clamping arms (20) by two brake shafts (306) and pins (305); and the two clamping arms (20) are installed on the base vertical plate (405) by two base shafts (409).

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